wp-includes/class-wp-xmlrpc-server.php

   1 <?php
   2 /**
   3  * XML-RPC protocol support for WordPress
   4  *
   5  * @package WordPress
   6  * @subpackage Publishing
   7  */
   8
   9 /**
  10  * WordPress XMLRPC server implementation.
  11  *
  12  * Implements compatibility for Blogger API, MetaWeblog API, MovableType, and
  13  * pingback. Additional WordPress API for managing comments, pages, posts,
  14  * options, etc.
  15  *
  16  * As of WordPress 3.5.0, XML-RPC is enabled by default. It can be disabled
  17  * via the xmlrpc_enabled filter found in wp_xmlrpc_server::login().
  18  *
  19  * @package WordPress
  20  * @subpackage Publishing
  21  * @since 1.5.0
  22  */
  23 class wp_xmlrpc_server extends IXR_Server {
  24         /**
  25          * @var array
  26          */
  27         public $methods;
  28         /**
  29          * @var array
  30          */
  31         public $blog_options;
  32         /**
  33          * @var IXR_Error
  34          */
  35         public $error;
  36         /**
  37          * Register all of the XMLRPC methods that XMLRPC server understands.
  38          *
  39          * Sets up server and method property. Passes XMLRPC
  40          * methods through the 'xmlrpc_methods' filter to allow plugins to extend
  41          * or replace XMLRPC methods.
  42          *
  43          * @since 1.5.0
  44          *
  45          * @return wp_xmlrpc_server
  46          */
  47         public function __construct() {
  48                 $this->methods = array(
  49                         // WordPress API
  50                         'wp.getUsersBlogs'              => 'this:wp_getUsersBlogs',
  51                         'wp.newPost'                    => 'this:wp_newPost',
  52                         'wp.editPost'                   => 'this:wp_editPost',
  53                         'wp.deletePost'                 => 'this:wp_deletePost',
  54                         'wp.getPost'                    => 'this:wp_getPost',
  55                         'wp.getPosts'                   => 'this:wp_getPosts',
  56                         'wp.newTerm'                    => 'this:wp_newTerm',
  57                         'wp.editTerm'                   => 'this:wp_editTerm',
  58                         'wp.deleteTerm'                 => 'this:wp_deleteTerm',
  59                         'wp.getTerm'                    => 'this:wp_getTerm',
  60                         'wp.getTerms'                   => 'this:wp_getTerms',
  61                         'wp.getTaxonomy'                => 'this:wp_getTaxonomy',
  62                         'wp.getTaxonomies'              => 'this:wp_getTaxonomies',
  63                         'wp.getUser'                    => 'this:wp_getUser',
  64                         'wp.getUsers'                   => 'this:wp_getUsers',
  65                         'wp.getProfile'                 => 'this:wp_getProfile',
  66                         'wp.editProfile'                => 'this:wp_editProfile',
  67                         'wp.getPage'                    => 'this:wp_getPage',
  68                         'wp.getPages'                   => 'this:wp_getPages',
  69                         'wp.newPage'                    => 'this:wp_newPage',
  70                         'wp.deletePage'                 => 'this:wp_deletePage',
  71                         'wp.editPage'                   => 'this:wp_editPage',
  72                         'wp.getPageList'                => 'this:wp_getPageList',
  73                         'wp.getAuthors'                 => 'this:wp_getAuthors',
  74                         'wp.getCategories'              => 'this:mw_getCategories',             // Alias
  75                         'wp.getTags'                    => 'this:wp_getTags',
  76                         'wp.newCategory'                => 'this:wp_newCategory',
  77                         'wp.deleteCategory'             => 'this:wp_deleteCategory',
  78                         'wp.suggestCategories'  => 'this:wp_suggestCategories',
  79                         'wp.uploadFile'                 => 'this:mw_newMediaObject',    // Alias
  80                         'wp.deleteFile'                 => 'this:wp_deletePost',                // Alias
  81                         'wp.getCommentCount'    => 'this:wp_getCommentCount',
  82                         'wp.getPostStatusList'  => 'this:wp_getPostStatusList',
  83                         'wp.getPageStatusList'  => 'this:wp_getPageStatusList',
  84                         'wp.getPageTemplates'   => 'this:wp_getPageTemplates',
  85                         'wp.getOptions'                 => 'this:wp_getOptions',
  86                         'wp.setOptions'                 => 'this:wp_setOptions',
  87                         'wp.getComment'                 => 'this:wp_getComment',
  88                         'wp.getComments'                => 'this:wp_getComments',
  89                         'wp.deleteComment'              => 'this:wp_deleteComment',
  90                         'wp.editComment'                => 'this:wp_editComment',
  91                         'wp.newComment'                 => 'this:wp_newComment',
  92                         'wp.getCommentStatusList' => 'this:wp_getCommentStatusList',
  93                         'wp.getMediaItem'               => 'this:wp_getMediaItem',
  94                         'wp.getMediaLibrary'    => 'this:wp_getMediaLibrary',
  95                         'wp.getPostFormats'     => 'this:wp_getPostFormats',
  96                         'wp.getPostType'                => 'this:wp_getPostType',
  97                         'wp.getPostTypes'               => 'this:wp_getPostTypes',
  98                         'wp.getRevisions'               => 'this:wp_getRevisions',
  99                         'wp.restoreRevision'    => 'this:wp_restoreRevision',
 100
 101                         // Blogger API
 102                         'blogger.getUsersBlogs' => 'this:blogger_getUsersBlogs',
 103                         'blogger.getUserInfo' => 'this:blogger_getUserInfo',
 104                         'blogger.getPost' => 'this:blogger_getPost',
 105                         'blogger.getRecentPosts' => 'this:blogger_getRecentPosts',
 106                         'blogger.newPost' => 'this:blogger_newPost',
 107                         'blogger.editPost' => 'this:blogger_editPost',
 108                         'blogger.deletePost' => 'this:blogger_deletePost',
 109
 110                         // MetaWeblog API (with MT extensions to structs)
 111                         'metaWeblog.newPost' => 'this:mw_newPost',
 112                         'metaWeblog.editPost' => 'this:mw_editPost',
 113                         'metaWeblog.getPost' => 'this:mw_getPost',
 114                         'metaWeblog.getRecentPosts' => 'this:mw_getRecentPosts',
 115                         'metaWeblog.getCategories' => 'this:mw_getCategories',
 116                         'metaWeblog.newMediaObject' => 'this:mw_newMediaObject',
 117
 118                         // MetaWeblog API aliases for Blogger API
 119                         // see http://www.xmlrpc.com/stories/storyReader$2460
 120                         'metaWeblog.deletePost' => 'this:blogger_deletePost',
 121                         'metaWeblog.getUsersBlogs' => 'this:blogger_getUsersBlogs',
 122
 123                         // MovableType API
 124                         'mt.getCategoryList' => 'this:mt_getCategoryList',
 125                         'mt.getRecentPostTitles' => 'this:mt_getRecentPostTitles',
 126                         'mt.getPostCategories' => 'this:mt_getPostCategories',
 127                         'mt.setPostCategories' => 'this:mt_setPostCategories',
 128                         'mt.supportedMethods' => 'this:mt_supportedMethods',
 129                         'mt.supportedTextFilters' => 'this:mt_supportedTextFilters',
 130                         'mt.getTrackbackPings' => 'this:mt_getTrackbackPings',
 131                         'mt.publishPost' => 'this:mt_publishPost',
 132
 133                         // PingBack
 134                         'pingback.ping' => 'this:pingback_ping',
 135                         'pingback.extensions.getPingbacks' => 'this:pingback_extensions_getPingbacks',
 136
 137                         'demo.sayHello' => 'this:sayHello',
 138                         'demo.addTwoNumbers' => 'this:addTwoNumbers'
 139                 );
 140
 141                 $this->initialise_blog_option_info();
 142
 143                 /**
 144                  * Filter the methods exposed by the XML-RPC server.
 145                  *
 146                  * This filter can be used to add new methods, and remove built-in methods.
 147                  *
 148                  * @since 1.5.0
 149                  *
 150                  * @param array $methods An array of XML-RPC methods.
 151                  */
 152                 $this->methods = apply_filters( 'xmlrpc_methods', $this->methods );
 153         }
 154
 155         /**
 156          * Make private/protected methods readable for backwards compatibility.
 157          *
 158          * @since 4.0.0
 159          * @access public
 160          *
 161          * @param callable $name      Method to call.
 162          * @param array    $arguments Arguments to pass when calling.
 163          * @return mixed|bool Return value of the callback, false otherwise.
 164          */
 165         public function __call( $name, $arguments ) {
 166                 return call_user_func_array( array( $this, $name ), $arguments );
 167         }
 168
 169         public function serve_request() {
 170                 $this->IXR_Server($this->methods);
 171         }
 172
 173         /**
 174          * Test XMLRPC API by saying, "Hello!" to client.
 175          *
 176          * @since 1.5.0
 177          *
 178          * @param array $args Method Parameters.
 179          * @return string
 180          */
 181         public function sayHello($args) {
 182                 return 'Hello!';
 183         }
 184
 185         /**
 186          * Test XMLRPC API by adding two numbers for client.
 187          *
 188          * @since 1.5.0
 189          *
 190          * @param array $args Method Parameters.
 191          * @return int
 192          */
 193         public function addTwoNumbers($args) {
 194                 $number1 = $args[0];
 195                 $number2 = $args[1];
 196                 return $number1 + $number2;
 197         }
 198
 199         /**
 200          * Log user in.
 201          *
 202          * @since 2.8.0
 203          *
 204          * @param string $username User's username.
 205          * @param string $password User's password.
 206          * @return WP_User|bool WP_User object if authentication passed, false otherwise
 207          */
 208         public function login( $username, $password ) {
 209                 /*
 210                  * Respect old get_option() filters left for back-compat when the 'enable_xmlrpc'
 211                  * option was deprecated in 3.5.0. Use the 'xmlrpc_enabled' hook instead.
 212                  */
 213                 $enabled = apply_filters( 'pre_option_enable_xmlrpc', false );
 214                 if ( false === $enabled ) {
 215                         $enabled = apply_filters( 'option_enable_xmlrpc', true );
 216                 }
 217
 218                 /**
 219                  * Filter whether XML-RPC is enabled.
 220                  *
 221                  * This is the proper filter for turning off XML-RPC.
 222                  *
 223                  * @since 3.5.0
 224                  *
 225                  * @param bool $enabled Whether XML-RPC is enabled. Default true.
 226                  */
 227                 $enabled = apply_filters( 'xmlrpc_enabled', $enabled );
 228
 229                 if ( ! $enabled ) {
 230                         $this->error = new IXR_Error( 405, sprintf( __( 'XML-RPC services are disabled on this site.' ) ) );
 231                         return false;
 232                 }
 233
 234                 $user = wp_authenticate($username, $password);
 235
 236                 if (is_wp_error($user)) {
 237                         $this->error = new IXR_Error( 403, __( 'Incorrect username or password.' ) );
 238
 239                         /**
 240                          * Filter the XML-RPC user login error message.
 241                          *
 242                          * @since 3.5.0
 243                          *
 244                          * @param string  $error The XML-RPC error message.
 245                          * @param WP_User $user  WP_User object.
 246                          */
 247                         $this->error = apply_filters( 'xmlrpc_login_error', $this->error, $user );
 248                         return false;
 249                 }
 250
 251                 wp_set_current_user( $user->ID );
 252                 return $user;
 253         }
 254
 255         /**
 256          * Check user's credentials. Deprecated.
 257          *
 258          * @since 1.5.0
 259          * @deprecated 2.8.0
 260          * @deprecated use wp_xmlrpc_server::login
 261          * @see wp_xmlrpc_server::login
 262          *
 263          * @param string $username User's username.
 264          * @param string $password User's password.
 265          * @return bool Whether authentication passed.
 266          */
 267         public function login_pass_ok( $username, $password ) {
 268                 return (bool) $this->login( $username, $password );
 269         }
 270
 271         /**
 272          * Escape string or array of strings for database.
 273          *
 274          * @since 1.5.2
 275          *
 276          * @param string|array $data Escape single string or array of strings.
 277          * @return string|array Type matches $data and sanitized for the database.
 278          */
 279         public function escape( &$data ) {
 280                 if ( ! is_array( $data ) )
 281                         return wp_slash( $data );
 282
 283                 foreach ( $data as &$v ) {
 284                         if ( is_array( $v ) )
 285                                 $this->escape( $v );
 286                         elseif ( ! is_object( $v ) )
 287                                 $v = wp_slash( $v );
 288                 }
 289         }
 290
 291         /**
 292          * Retrieve custom fields for post.
 293          *
 294          * @since 2.5.0
 295          *
 296          * @param int $post_id Post ID.
 297          * @return array Custom fields, if exist.
 298          */
 299         public function get_custom_fields($post_id) {
 300                 $post_id = (int) $post_id;
 301
 302                 $custom_fields = array();
 303
 304                 foreach ( (array) has_meta($post_id) as $meta ) {
 305                         // Don't expose protected fields.
 306                         if ( ! current_user_can( 'edit_post_meta', $post_id , $meta['meta_key'] ) )
 307                                 continue;
 308
 309                         $custom_fields[] = array(
 310                                 "id"    => $meta['meta_id'],
 311                                 "key"   => $meta['meta_key'],
 312                                 "value" => $meta['meta_value']
 313                         );
 314                 }
 315
 316                 return $custom_fields;
 317         }
 318
 319         /**
 320          * Set custom fields for post.
 321          *
 322          * @since 2.5.0
 323          *
 324          * @param int $post_id Post ID.
 325          * @param array $fields Custom fields.
 326          */
 327         public function set_custom_fields($post_id, $fields) {
 328                 $post_id = (int) $post_id;
 329
 330                 foreach ( (array) $fields as $meta ) {
 331                         if ( isset($meta['id']) ) {
 332                                 $meta['id'] = (int) $meta['id'];
 333                                 $pmeta = get_metadata_by_mid( 'post', $meta['id'] );
 334                                 if ( isset($meta['key']) ) {
 335                                         $meta['key'] = wp_unslash( $meta['key'] );
 336                                         if ( $meta['key'] !== $pmeta->meta_key )
 337                                                 continue;
 338                                         $meta['value'] = wp_unslash( $meta['value'] );
 339                                         if ( current_user_can( 'edit_post_meta', $post_id, $meta['key'] ) )
 340                                                 update_metadata_by_mid( 'post', $meta['id'], $meta['value'] );
 341                                 } elseif ( current_user_can( 'delete_post_meta', $post_id, $pmeta->meta_key ) ) {
 342                                         delete_metadata_by_mid( 'post', $meta['id'] );
 343                                 }
 344                         } elseif ( current_user_can( 'add_post_meta', $post_id, wp_unslash( $meta['key'] ) ) ) {
 345                                 add_post_meta( $post_id, $meta['key'], $meta['value'] );
 346                         }
 347                 }
 348         }
 349
 350         /**
 351          * Set up blog options property.
 352          *
 353          * Passes property through 'xmlrpc_blog_options' filter.
 354          *
 355          * @since 2.6.0
 356          */
 357         public function initialise_blog_option_info() {
 358                 global $wp_version;
 359
 360                 $this->blog_options = array(
 361                         // Read only options
 362                         'software_name'     => array(
 363                                 'desc'          => __( 'Software Name' ),
 364                                 'readonly'      => true,
 365                                 'value'         => 'WordPress'
 366                         ),
 367                         'software_version'  => array(
 368                                 'desc'          => __( 'Software Version' ),
 369                                 'readonly'      => true,
 370                                 'value'         => $wp_version
 371                         ),
 372                         'blog_url'          => array(
 373                                 'desc'          => __( 'WordPress Address (URL)' ),
 374                                 'readonly'      => true,
 375                                 'option'        => 'siteurl'
 376                         ),
 377                         'home_url'          => array(
 378                                 'desc'          => __( 'Site Address (URL)' ),
 379                                 'readonly'      => true,
 380                                 'option'        => 'home'
 381                         ),
 382                         'login_url'          => array(
 383                                 'desc'          => __( 'Login Address (URL)' ),
 384                                 'readonly'      => true,
 385                                 'value'         => wp_login_url( )
 386                         ),
 387                         'admin_url'          => array(
 388                                 'desc'          => __( 'The URL to the admin area' ),
 389                                 'readonly'      => true,
 390                                 'value'         => get_admin_url( )
 391                         ),
 392                         'image_default_link_type' => array(
 393                                 'desc'          => __( 'Image default link type' ),
 394                                 'readonly'      => true,
 395                                 'option'        => 'image_default_link_type'
 396                         ),
 397                         'image_default_size' => array(
 398                                 'desc'          => __( 'Image default size' ),
 399                                 'readonly'      => true,
 400                                 'option'        => 'image_default_size'
 401                         ),
 402                         'image_default_align' => array(
 403                                 'desc'          => __( 'Image default align' ),
 404                                 'readonly'      => true,
 405                                 'option'        => 'image_default_align'
 406                         ),
 407                         'template'          => array(
 408                                 'desc'          => __( 'Template' ),
 409                                 'readonly'      => true,
 410                                 'option'        => 'template'
 411                         ),
 412                         'stylesheet'        => array(
 413                                 'desc'          => __( 'Stylesheet' ),
 414                                 'readonly'      => true,
 415                                 'option'        => 'stylesheet'
 416                         ),
 417                         'post_thumbnail'    => array(
 418                                 'desc'          => __('Post Thumbnail'),
 419                                 'readonly'      => true,
 420                                 'value'         => current_theme_supports( 'post-thumbnails' )
 421                         ),
 422
 423                         // Updatable options
 424                         'time_zone'         => array(
 425                                 'desc'          => __( 'Time Zone' ),
 426                                 'readonly'      => false,
 427                                 'option'        => 'gmt_offset'
 428                         ),
 429                         'blog_title'        => array(
 430                                 'desc'          => __( 'Site Title' ),
 431                                 'readonly'      => false,
 432                                 'option'        => 'blogname'
 433                         ),
 434                         'blog_tagline'      => array(
 435                                 'desc'          => __( 'Site Tagline' ),
 436                                 'readonly'      => false,
 437                                 'option'        => 'blogdescription'
 438                         ),
 439                         'date_format'       => array(
 440                                 'desc'          => __( 'Date Format' ),
 441                                 'readonly'      => false,
 442                                 'option'        => 'date_format'
 443                         ),
 444                         'time_format'       => array(
 445                                 'desc'          => __( 'Time Format' ),
 446                                 'readonly'      => false,
 447                                 'option'        => 'time_format'
 448                         ),
 449                         'users_can_register' => array(
 450                                 'desc'          => __( 'Allow new users to sign up' ),
 451                                 'readonly'      => false,
 452                                 'option'        => 'users_can_register'
 453                         ),
 454                         'thumbnail_size_w'  => array(
 455                                 'desc'          => __( 'Thumbnail Width' ),
 456                                 'readonly'      => false,
 457                                 'option'        => 'thumbnail_size_w'
 458                         ),
 459                         'thumbnail_size_h'  => array(
 460                                 'desc'          => __( 'Thumbnail Height' ),
 461                                 'readonly'      => false,
 462                                 'option'        => 'thumbnail_size_h'
 463                         ),
 464                         'thumbnail_crop'    => array(
 465                                 'desc'          => __( 'Crop thumbnail to exact dimensions' ),
 466                                 'readonly'      => false,
 467                                 'option'        => 'thumbnail_crop'
 468                         ),
 469                         'medium_size_w'     => array(
 470                                 'desc'          => __( 'Medium size image width' ),
 471                                 'readonly'      => false,
 472                                 'option'        => 'medium_size_w'
 473                         ),
 474                         'medium_size_h'     => array(
 475                                 'desc'          => __( 'Medium size image height' ),
 476                                 'readonly'      => false,
 477                                 'option'        => 'medium_size_h'
 478                         ),
 479                         'large_size_w'      => array(
 480                                 'desc'          => __( 'Large size image width' ),
 481                                 'readonly'      => false,
 482                                 'option'        => 'large_size_w'
 483                         ),
 484                         'large_size_h'      => array(
 485                                 'desc'          => __( 'Large size image height' ),
 486                                 'readonly'      => false,
 487                                 'option'        => 'large_size_h'
 488                         ),
 489                         'default_comment_status' => array(
 490                                 'desc'          => __( 'Allow people to post comments on new articles' ),
 491                                 'readonly'      => false,
 492                                 'option'        => 'default_comment_status'
 493                         ),
 494                         'default_ping_status' => array(
 495                                 'desc'          => __( 'Allow link notifications from other blogs (pingbacks and trackbacks)' ),
 496                                 'readonly'      => false,
 497                                 'option'        => 'default_ping_status'
 498                         )
 499                 );
 500
 501                 /**
 502                  * Filter the XML-RPC blog options property.
 503                  *
 504                  * @since 2.6.0
 505                  *
 506                  * @param array $blog_options An array of XML-RPC blog options.
 507                  */
 508                 $this->blog_options = apply_filters( 'xmlrpc_blog_options', $this->blog_options );
 509         }
 510
 511         /**
 512          * Retrieve the blogs of the user.
 513          *
 514          * @since 2.6.0
 515          *
 516          * @param array $args Method parameters. Contains:
 517          *  - username
 518          *  - password
 519          * @return array|IXR_Error Array contains:
 520          *  - 'isAdmin'
 521          *  - 'url'
 522          *  - 'blogid'
 523          *  - 'blogName'
 524          *  - 'xmlrpc' - url of xmlrpc endpoint
 525          */
 526         public function wp_getUsersBlogs( $args ) {
 527                 // If this isn't on WPMU then just use blogger_getUsersBlogs
 528                 if ( !is_multisite() ) {
 529                         array_unshift( $args, 1 );
 530                         return $this->blogger_getUsersBlogs( $args );
 531                 }
 532
 533                 $this->escape( $args );
 534
 535                 $username = $args[0];
 536                 $password = $args[1];
 537
 538                 if ( !$user = $this->login($username, $password) )
 539                         return $this->error;
 540
 541                 /**
 542                  * Fires after the XML-RPC user has been authenticated but before the rest of
 543                  * the method logic begins.
 544                  *
 545                  * All built-in XML-RPC methods use the action xmlrpc_call, with a parameter
 546                  * equal to the method's name, e.g., wp.getUsersBlogs, wp.newPost, etc.
 547                  *
 548                  * @since 2.5.0
 549                  *
 550                  * @param method $name The method name.
 551                  */
 552                 do_action( 'xmlrpc_call', 'wp.getUsersBlogs' );
 553
 554                 $blogs = (array) get_blogs_of_user( $user->ID );
 555                 $struct = array();
 556
 557                 foreach ( $blogs as $blog ) {
 558                         // Don't include blogs that aren't hosted at this site
 559                         if ( $blog->site_id != get_current_site()->id )
 560                                 continue;
 561
 562                         $blog_id = $blog->userblog_id;
 563
 564                         switch_to_blog( $blog_id );
 565
 566                         $is_admin = current_user_can( 'manage_options' );
 567
 568                         $struct[] = array(
 569                                 'isAdmin'               => $is_admin,
 570                                 'url'                   => home_url( '/' ),
 571                                 'blogid'                => (string) $blog_id,
 572                                 'blogName'              => get_option( 'blogname' ),
 573                                 'xmlrpc'                => site_url( 'xmlrpc.php', 'rpc' ),
 574                         );
 575
 576                         restore_current_blog();
 577                 }
 578
 579                 return $struct;
 580         }
 581
 582         /**
 583          * Checks if the method received at least the minimum number of arguments.
 584          *
 585          * @since 3.4.0
 586          *
 587          * @param string|array $args Sanitize single string or array of strings.
 588          * @param int $count Minimum number of arguments.
 589          * @return boolean if $args contains at least $count arguments.
 590          */
 591         protected function minimum_args( $args, $count ) {
 592                 if ( count( $args ) < $count ) {
 593                         $this->error = new IXR_Error( 400, __( 'Insufficient arguments passed to this XML-RPC method.' ) );
 594                         return false;
 595                 }
 596
 597                 return true;
 598         }
 599
 600         /**
 601          * Prepares taxonomy data for return in an XML-RPC object.
 602          *
 603          * @access protected
 604          *
 605          * @param object $taxonomy The unprepared taxonomy data
 606          * @param array $fields The subset of taxonomy fields to return
 607          * @return array The prepared taxonomy data
 608          */
 609         protected function _prepare_taxonomy( $taxonomy, $fields ) {
 610                 $_taxonomy = array(
 611                         'name' => $taxonomy->name,
 612                         'label' => $taxonomy->label,
 613                         'hierarchical' => (bool) $taxonomy->hierarchical,
 614                         'public' => (bool) $taxonomy->public,
 615                         'show_ui' => (bool) $taxonomy->show_ui,
 616                         '_builtin' => (bool) $taxonomy->_builtin,
 617                 );
 618
 619                 if ( in_array( 'labels', $fields ) )
 620                         $_taxonomy['labels'] = (array) $taxonomy->labels;
 621
 622                 if ( in_array( 'cap', $fields ) )
 623                         $_taxonomy['cap'] = (array) $taxonomy->cap;
 624
 625                 if ( in_array( 'menu', $fields ) )
 626                         $_taxonomy['show_in_menu'] = (bool) $_taxonomy->show_in_menu;
 627
 628                 if ( in_array( 'object_type', $fields ) )
 629                         $_taxonomy['object_type'] = array_unique( (array) $taxonomy->object_type );
 630
 631                 /**
 632                  * Filter XML-RPC-prepared data for the given taxonomy.
 633                  *
 634                  * @since 3.4.0
 635                  *
 636                  * @param array  $_taxonomy An array of taxonomy data.
 637                  * @param object $taxonomy  Taxonomy object.
 638                  * @param array  $fields    The subset of taxonomy fields to return.
 639                  */
 640                 return apply_filters( 'xmlrpc_prepare_taxonomy', $_taxonomy, $taxonomy, $fields );
 641         }
 642
 643         /**
 644          * Prepares term data for return in an XML-RPC object.
 645          *
 646          * @access protected
 647          *
 648          * @param array|object $term The unprepared term data
 649          * @return array The prepared term data
 650          */
 651         protected function _prepare_term( $term ) {
 652                 $_term = $term;
 653                 if ( ! is_array( $_term) )
 654                         $_term = get_object_vars( $_term );
 655
 656                 // For integers which may be larger than XML-RPC supports ensure we return strings.
 657                 $_term['term_id'] = strval( $_term['term_id'] );
 658                 $_term['term_group'] = strval( $_term['term_group'] );
 659                 $_term['term_taxonomy_id'] = strval( $_term['term_taxonomy_id'] );
 660                 $_term['parent'] = strval( $_term['parent'] );
 661
 662                 // Count we are happy to return as an integer because people really shouldn't use terms that much.
 663                 $_term['count'] = intval( $_term['count'] );
 664
 665                 /**
 666                  * Filter XML-RPC-prepared data for the given term.
 667                  *
 668                  * @since 3.4.0
 669                  *
 670                  * @param array        $_term An array of term data.
 671                  * @param array|object $term  Term object or array.
 672                  */
 673                 return apply_filters( 'xmlrpc_prepare_term', $_term, $term );
 674         }
 675
 676         /**
 677          * Convert a WordPress date string to an IXR_Date object.
 678          *
 679          * @access protected
 680          *
 681          * @param string $date
 682          * @return IXR_Date
 683          */
 684         protected function _convert_date( $date ) {
 685                 if ( $date === '0000-00-00 00:00:00' ) {
 686                         return new IXR_Date( '00000000T00:00:00Z' );
 687                 }
 688                 return new IXR_Date( mysql2date( 'Ymd\TH:i:s', $date, false ) );
 689         }
 690
 691         /**
 692          * Convert a WordPress GMT date string to an IXR_Date object.
 693          *
 694          * @access protected
 695          *
 696          * @param string $date_gmt
 697          * @param string $date
 698          * @return IXR_Date
 699          */
 700         protected function _convert_date_gmt( $date_gmt, $date ) {
 701                 if ( $date !== '0000-00-00 00:00:00' && $date_gmt === '0000-00-00 00:00:00' ) {
 702                         return new IXR_Date( get_gmt_from_date( mysql2date( 'Y-m-d H:i:s', $date, false ), 'Ymd\TH:i:s' ) );
 703                 }
 704                 return $this->_convert_date( $date_gmt );
 705         }
 706
 707         /**
 708          * Prepares post data for return in an XML-RPC object.
 709          *
 710          * @access protected
 711          *
 712          * @param array $post The unprepared post data
 713          * @param array $fields The subset of post type fields to return
 714          * @return array The prepared post data
 715          */
 716         protected function _prepare_post( $post, $fields ) {
 717                 // holds the data for this post. built up based on $fields
 718                 $_post = array( 'post_id' => strval( $post['ID'] ) );
 719
 720                 // prepare common post fields
 721                 $post_fields = array(
 722                         'post_title'        => $post['post_title'],
 723                         'post_date'         => $this->_convert_date( $post['post_date'] ),
 724                         'post_date_gmt'     => $this->_convert_date_gmt( $post['post_date_gmt'], $post['post_date'] ),
 725                         'post_modified'     => $this->_convert_date( $post['post_modified'] ),
 726                         'post_modified_gmt' => $this->_convert_date_gmt( $post['post_modified_gmt'], $post['post_modified'] ),
 727                         'post_status'       => $post['post_status'],
 728                         'post_type'         => $post['post_type'],
 729                         'post_name'         => $post['post_name'],
 730                         'post_author'       => $post['post_author'],
 731                         'post_password'     => $post['post_password'],
 732                         'post_excerpt'      => $post['post_excerpt'],
 733                         'post_content'      => $post['post_content'],
 734                         'post_parent'       => strval( $post['post_parent'] ),
 735                         'post_mime_type'    => $post['post_mime_type'],
 736                         'link'              => post_permalink( $post['ID'] ),
 737                         'guid'              => $post['guid'],
 738                         'menu_order'        => intval( $post['menu_order'] ),
 739                         'comment_status'    => $post['comment_status'],
 740                         'ping_status'       => $post['ping_status'],
 741                         'sticky'            => ( $post['post_type'] === 'post' && is_sticky( $post['ID'] ) ),
 742                 );
 743
 744                 // Thumbnail
 745                 $post_fields['post_thumbnail'] = array();
 746                 $thumbnail_id = get_post_thumbnail_id( $post['ID'] );
 747                 if ( $thumbnail_id ) {
 748                         $thumbnail_size = current_theme_supports('post-thumbnail') ? 'post-thumbnail' : 'thumbnail';
 749                         $post_fields['post_thumbnail'] = $this->_prepare_media_item( get_post( $thumbnail_id ), $thumbnail_size );
 750                 }
 751
 752                 // Consider future posts as published
 753                 if ( $post_fields['post_status'] === 'future' )
 754                         $post_fields['post_status'] = 'publish';
 755
 756                 // Fill in blank post format
 757                 $post_fields['post_format'] = get_post_format( $post['ID'] );
 758                 if ( empty( $post_fields['post_format'] ) )
 759                         $post_fields['post_format'] = 'standard';
 760
 761                 // Merge requested $post_fields fields into $_post
 762                 if ( in_array( 'post', $fields ) ) {
 763                         $_post = array_merge( $_post, $post_fields );
 764                 } else {
 765                         $requested_fields = array_intersect_key( $post_fields, array_flip( $fields ) );
 766                         $_post = array_merge( $_post, $requested_fields );
 767                 }
 768
 769                 $all_taxonomy_fields = in_array( 'taxonomies', $fields );
 770
 771                 if ( $all_taxonomy_fields || in_array( 'terms', $fields ) ) {
 772                         $post_type_taxonomies = get_object_taxonomies( $post['post_type'], 'names' );
 773                         $terms = wp_get_object_terms( $post['ID'], $post_type_taxonomies );
 774                         $_post['terms'] = array();
 775                         foreach ( $terms as $term ) {
 776                                 $_post['terms'][] = $this->_prepare_term( $term );
 777                         }
 778                 }
 779
 780                 if ( in_array( 'custom_fields', $fields ) )
 781                         $_post['custom_fields'] = $this->get_custom_fields( $post['ID'] );
 782
 783                 if ( in_array( 'enclosure', $fields ) ) {
 784                         $_post['enclosure'] = array();
 785                         $enclosures = (array) get_post_meta( $post['ID'], 'enclosure' );
 786                         if ( ! empty( $enclosures ) ) {
 787                                 $encdata = explode( "\n", $enclosures[0] );
 788                                 $_post['enclosure']['url'] = trim( htmlspecialchars( $encdata[0] ) );
 789                                 $_post['enclosure']['length'] = (int) trim( $encdata[1] );
 790                                 $_post['enclosure']['type'] = trim( $encdata[2] );
 791                         }
 792                 }
 793
 794                 /**
 795                  * Filter XML-RPC-prepared date for the given post.
 796                  *
 797                  * @since 3.4.0
 798                  *
 799                  * @param array $_post  An array of modified post data.
 800                  * @param array $post   An array of post data.
 801                  * @param array $fields An array of post fields.
 802                  */
 803                 return apply_filters( 'xmlrpc_prepare_post', $_post, $post, $fields );
 804         }
 805
 806         /**
 807          * Prepares post data for return in an XML-RPC object.
 808          *
 809          * @access protected
 810          *
 811          * @param object $post_type Post type object
 812          * @param array $fields The subset of post fields to return
 813          * @return array The prepared post type data
 814          */
 815         protected function _prepare_post_type( $post_type, $fields ) {
 816                 $_post_type = array(
 817                         'name' => $post_type->name,
 818                         'label' => $post_type->label,
 819                         'hierarchical' => (bool) $post_type->hierarchical,
 820                         'public' => (bool) $post_type->public,
 821                         'show_ui' => (bool) $post_type->show_ui,
 822                         '_builtin' => (bool) $post_type->_builtin,
 823                         'has_archive' => (bool) $post_type->has_archive,
 824                         'supports' => get_all_post_type_supports( $post_type->name ),
 825                 );
 826
 827                 if ( in_array( 'labels', $fields ) ) {
 828                         $_post_type['labels'] = (array) $post_type->labels;
 829                 }
 830
 831                 if ( in_array( 'cap', $fields ) ) {
 832                         $_post_type['cap'] = (array) $post_type->cap;
 833                         $_post_type['map_meta_cap'] = (bool) $post_type->map_meta_cap;
 834                 }
 835
 836                 if ( in_array( 'menu', $fields ) ) {
 837                         $_post_type['menu_position'] = (int) $post_type->menu_position;
 838                         $_post_type['menu_icon'] = $post_type->menu_icon;
 839                         $_post_type['show_in_menu'] = (bool) $post_type->show_in_menu;
 840                 }
 841
 842                 if ( in_array( 'taxonomies', $fields ) )
 843                         $_post_type['taxonomies'] = get_object_taxonomies( $post_type->name, 'names' );
 844
 845                 /**
 846                  * Filter XML-RPC-prepared date for the given post type.
 847                  *
 848                  * @since 3.4.0
 849                  *
 850                  * @param array  $_post_type An array of post type data.
 851                  * @param object $post_type  Post type object.
 852                  */
 853                 return apply_filters( 'xmlrpc_prepare_post_type', $_post_type, $post_type );
 854         }
 855
 856         /**
 857          * Prepares media item data for return in an XML-RPC object.
 858          *
 859          * @access protected
 860          *
 861          * @param object $media_item The unprepared media item data
 862          * @param string $thumbnail_size The image size to use for the thumbnail URL
 863          * @return array The prepared media item data
 864          */
 865         protected function _prepare_media_item( $media_item, $thumbnail_size = 'thumbnail' ) {
 866                 $_media_item = array(
 867                         'attachment_id'    => strval( $media_item->ID ),
 868                         'date_created_gmt' => $this->_convert_date_gmt( $media_item->post_date_gmt, $media_item->post_date ),
 869                         'parent'           => $media_item->post_parent,
 870                         'link'             => wp_get_attachment_url( $media_item->ID ),
 871                         'title'            => $media_item->post_title,
 872                         'caption'          => $media_item->post_excerpt,
 873                         'description'      => $media_item->post_content,
 874                         'metadata'         => wp_get_attachment_metadata( $media_item->ID ),
 875                 );
 876
 877                 $thumbnail_src = image_downsize( $media_item->ID, $thumbnail_size );
 878                 if ( $thumbnail_src )
 879                         $_media_item['thumbnail'] = $thumbnail_src[0];
 880                 else
 881                         $_media_item['thumbnail'] = $_media_item['link'];
 882
 883                 /**
 884                  * Filter XML-RPC-prepared data for the given media item.
 885                  *
 886                  * @since 3.4.0
 887                  *
 888                  * @param array  $_media_item    An array of media item data.
 889                  * @param object $media_item     Media item object.
 890                  * @param string $thumbnail_size Image size.
 891                  */
 892                 return apply_filters( 'xmlrpc_prepare_media_item', $_media_item, $media_item, $thumbnail_size );
 893         }
 894
 895         /**
 896          * Prepares page data for return in an XML-RPC object.
 897          *
 898          * @access protected
 899          *
 900          * @param object $page The unprepared page data
 901          * @return array The prepared page data
 902          */
 903         protected function _prepare_page( $page ) {
 904                 // Get all of the page content and link.
 905                 $full_page = get_extended( $page->post_content );
 906                 $link = post_permalink( $page->ID );
 907
 908                 // Get info the page parent if there is one.
 909                 $parent_title = "";
 910                 if ( ! empty( $page->post_parent ) ) {
 911                         $parent = get_post( $page->post_parent );
 912                         $parent_title = $parent->post_title;
 913                 }
 914
 915                 // Determine comment and ping settings.
 916                 $allow_comments = comments_open( $page->ID ) ? 1 : 0;
 917                 $allow_pings = pings_open( $page->ID ) ? 1 : 0;
 918
 919                 // Format page date.
 920                 $page_date = $this->_convert_date( $page->post_date );
 921                 $page_date_gmt = $this->_convert_date_gmt( $page->post_date_gmt, $page->post_date );
 922
 923                 // Pull the categories info together.
 924                 $categories = array();
 925                 if ( is_object_in_taxonomy( 'page', 'category' ) ) {
 926                         foreach ( wp_get_post_categories( $page->ID ) as $cat_id ) {
 927                                 $categories[] = get_cat_name( $cat_id );
 928                         }
 929                 }
 930
 931                 // Get the author info.
 932                 $author = get_userdata( $page->post_author );
 933
 934                 $page_template = get_page_template_slug( $page->ID );
 935                 if ( empty( $page_template ) )
 936                         $page_template = 'default';
 937
 938                 $_page = array(
 939                         'dateCreated'            => $page_date,
 940                         'userid'                 => $page->post_author,
 941                         'page_id'                => $page->ID,
 942                         'page_status'            => $page->post_status,
 943                         'description'            => $full_page['main'],
 944                         'title'                  => $page->post_title,
 945                         'link'                   => $link,
 946                         'permaLink'              => $link,
 947                         'categories'             => $categories,
 948                         'excerpt'                => $page->post_excerpt,
 949                         'text_more'              => $full_page['extended'],
 950                         'mt_allow_comments'      => $allow_comments,
 951                         'mt_allow_pings'         => $allow_pings,
 952                         'wp_slug'                => $page->post_name,
 953                         'wp_password'            => $page->post_password,
 954                         'wp_author'              => $author->display_name,
 955                         'wp_page_parent_id'      => $page->post_parent,
 956                         'wp_page_parent_title'   => $parent_title,
 957                         'wp_page_order'          => $page->menu_order,
 958                         'wp_author_id'           => (string) $author->ID,
 959                         'wp_author_display_name' => $author->display_name,
 960                         'date_created_gmt'       => $page_date_gmt,
 961                         'custom_fields'          => $this->get_custom_fields( $page->ID ),
 962                         'wp_page_template'       => $page_template
 963                 );
 964
 965                 /**
 966                  * Filter XML-RPC-prepared data for the given page.
 967                  *
 968                  * @since 3.4.0
 969                  *
 970                  * @param array   $_page An array of page data.
 971                  * @param WP_Post $page  Page object.
 972                  */
 973                 return apply_filters( 'xmlrpc_prepare_page', $_page, $page );
 974         }
 975
 976         /**
 977          * Prepares comment data for return in an XML-RPC object.
 978          *
 979          * @access protected
 980          *
 981          * @param object $comment The unprepared comment data
 982          * @return array The prepared comment data
 983          */
 984         protected function _prepare_comment( $comment ) {
 985                 // Format page date.
 986                 $comment_date_gmt = $this->_convert_date_gmt( $comment->comment_date_gmt, $comment->comment_date );
 987
 988                 if ( '0' == $comment->comment_approved ) {
 989                         $comment_status = 'hold';
 990                 } elseif ( 'spam' == $comment->comment_approved ) {
 991                         $comment_status = 'spam';
 992                 } elseif ( '1' == $comment->comment_approved ) {
 993                         $comment_status = 'approve';
 994                 } else {
 995                         $comment_status = $comment->comment_approved;
 996                 }
 997                 $_comment = array(
 998                         'date_created_gmt' => $comment_date_gmt,
 999                         'user_id'          => $comment->user_id,
1000                         'comment_id'       => $comment->comment_ID,
1001                         'parent'           => $comment->comment_parent,
1002                         'status'           => $comment_status,
1003                         'content'          => $comment->comment_content,
1004                         'link'             => get_comment_link($comment),
1005                         'post_id'          => $comment->comment_post_ID,
1006                         'post_title'       => get_the_title($comment->comment_post_ID),
1007                         'author'           => $comment->comment_author,
1008                         'author_url'       => $comment->comment_author_url,
1009                         'author_email'     => $comment->comment_author_email,
1010                         'author_ip'        => $comment->comment_author_IP,
1011                         'type'             => $comment->comment_type,
1012                 );
1013
1014                 /**
1015                  * Filter XML-RPC-prepared data for the given comment.
1016                  *
1017                  * @since 3.4.0
1018                  *
1019                  * @param array  $_comment An array of prepared comment data.
1020                  * @param object $comment  Comment object.
1021                  */
1022                 return apply_filters( 'xmlrpc_prepare_comment', $_comment, $comment );
1023         }
1024
1025         /**
1026          * Prepares user data for return in an XML-RPC object.
1027          *
1028          * @access protected
1029          *
1030          * @param WP_User $user The unprepared user object
1031          * @param array $fields The subset of user fields to return
1032          * @return array The prepared user data
1033          */
1034         protected function _prepare_user( $user, $fields ) {
1035                 $_user = array( 'user_id' => strval( $user->ID ) );
1036
1037                 $user_fields = array(
1038                         'username'          => $user->user_login,
1039                         'first_name'        => $user->user_firstname,
1040                         'last_name'         => $user->user_lastname,
1041                         'registered'        => $this->_convert_date( $user->user_registered ),
1042                         'bio'               => $user->user_description,
1043                         'email'             => $user->user_email,
1044                         'nickname'          => $user->nickname,
1045                         'nicename'          => $user->user_nicename,
1046                         'url'               => $user->user_url,
1047                         'display_name'      => $user->display_name,
1048                         'roles'             => $user->roles,
1049                 );
1050
1051                 if ( in_array( 'all', $fields ) ) {
1052                         $_user = array_merge( $_user, $user_fields );
1053                 } else {
1054                         if ( in_array( 'basic', $fields ) ) {
1055                                 $basic_fields = array( 'username', 'email', 'registered', 'display_name', 'nicename' );
1056                                 $fields = array_merge( $fields, $basic_fields );
1057                         }
1058                         $requested_fields = array_intersect_key( $user_fields, array_flip( $fields ) );
1059                         $_user = array_merge( $_user, $requested_fields );
1060                 }
1061
1062                 /**
1063                  * Filter XML-RPC-prepared data for the given user.
1064                  *
1065                  * @since 3.5.0
1066                  *
1067                  * @param array   $_user  An array of user data.
1068                  * @param WP_User $user   User object.
1069                  * @param array   $fields An array of user fields.
1070                  */
1071                 return apply_filters( 'xmlrpc_prepare_user', $_user, $user, $fields );
1072         }
1073
1074         /**
1075          * Create a new post for any registered post type.
1076          *
1077          * @since 3.4.0
1078          *
1079          * @param array $args Method parameters. Contains:
1080          *  - int     $blog_id (unused)
1081          *  - string  $username
1082          *  - string  $password
1083          *  - array   $content_struct
1084          *      $content_struct can contain:
1085          *      - post_type (default: 'post')
1086          *      - post_status (default: 'draft')
1087          *      - post_title
1088          *      - post_author
1089          *      - post_excerpt
1090          *      - post_content
1091          *      - post_date_gmt | post_date
1092          *      - post_format
1093          *      - post_password
1094          *      - comment_status - can be 'open' | 'closed'
1095          *      - ping_status - can be 'open' | 'closed'
1096          *      - sticky
1097          *      - post_thumbnail - ID of a media item to use as the post thumbnail/featured image
1098          *      - custom_fields - array, with each element containing 'key' and 'value'
1099          *      - terms - array, with taxonomy names as keys and arrays of term IDs as values
1100          *      - terms_names - array, with taxonomy names as keys and arrays of term names as values
1101          *      - enclosure
1102          *      - any other fields supported by wp_insert_post()
1103          * @return string|IXR_Error post_id
1104          */
1105         public function wp_newPost( $args ) {
1106                 if ( ! $this->minimum_args( $args, 4 ) )
1107                         return $this->error;
1108
1109                 $this->escape( $args );
1110
1111                 $username       = $args[1];
1112                 $password       = $args[2];
1113                 $content_struct = $args[3];
1114
1115                 if ( ! $user = $this->login( $username, $password ) )
1116                         return $this->error;
1117
1118                 // convert the date field back to IXR form
1119                 if ( isset( $content_struct['post_date'] ) && ! is_a( $content_struct['post_date'], 'IXR_Date' ) ) {
1120                         $content_struct['post_date'] = $this->_convert_date( $content_struct['post_date'] );
1121                 }
1122
1123                 // ignore the existing GMT date if it is empty or a non-GMT date was supplied in $content_struct,
1124                 // since _insert_post will ignore the non-GMT date if the GMT date is set
1125                 if ( isset( $content_struct['post_date_gmt'] ) && ! is_a( $content_struct['post_date_gmt'], 'IXR_Date' ) ) {
1126                         if ( $content_struct['post_date_gmt'] == '0000-00-00 00:00:00' || isset( $content_struct['post_date'] ) ) {
1127                                 unset( $content_struct['post_date_gmt'] );
1128                         } else {
1129                                 $content_struct['post_date_gmt'] = $this->_convert_date( $content_struct['post_date_gmt'] );
1130                         }
1131                 }
1132
1133                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1134                 do_action( 'xmlrpc_call', 'wp.newPost' );
1135
1136                 unset( $content_struct['ID'] );
1137
1138                 return $this->_insert_post( $user, $content_struct );
1139         }
1140
1141         /**
1142          * Helper method for filtering out elements from an array.
1143          *
1144          * @since 3.4.0
1145          *
1146          * @param int $count Number to compare to one.
1147          */
1148         private function _is_greater_than_one( $count ) {
1149                 return $count > 1;
1150         }
1151
1152         /**
1153          * Helper method for wp_newPost and wp_editPost, containing shared logic.
1154          *
1155          * @since 3.4.0
1156          * @uses wp_insert_post()
1157          *
1158          * @param WP_User $user The post author if post_author isn't set in $content_struct.
1159          * @param array|IXR_Error $content_struct Post data to insert.
1160          */
1161         protected function _insert_post( $user, $content_struct ) {
1162                 $defaults = array( 'post_status' => 'draft', 'post_type' => 'post', 'post_author' => 0,
1163                         'post_password' => '', 'post_excerpt' => '', 'post_content' => '', 'post_title' => '' );
1164
1165                 $post_data = wp_parse_args( $content_struct, $defaults );
1166
1167                 $post_type = get_post_type_object( $post_data['post_type'] );
1168                 if ( ! $post_type )
1169                         return new IXR_Error( 403, __( 'Invalid post type' ) );
1170
1171                 $update = ! empty( $post_data['ID'] );
1172
1173                 if ( $update ) {
1174                         if ( ! get_post( $post_data['ID'] ) )
1175                                 return new IXR_Error( 401, __( 'Invalid post ID.' ) );
1176                         if ( ! current_user_can( 'edit_post', $post_data['ID'] ) )
1177                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit this post.' ) );
1178                         if ( $post_data['post_type'] != get_post_type( $post_data['ID'] ) )
1179                                 return new IXR_Error( 401, __( 'The post type may not be changed.' ) );
1180                 } else {
1181                         if ( ! current_user_can( $post_type->cap->create_posts ) || ! current_user_can( $post_type->cap->edit_posts ) )
1182                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to post on this site.' ) );
1183                 }
1184
1185                 switch ( $post_data['post_status'] ) {
1186                         case 'draft':
1187                         case 'pending':
1188                                 break;
1189                         case 'private':
1190                                 if ( ! current_user_can( $post_type->cap->publish_posts ) )
1191                                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to create private posts in this post type' ) );
1192                                 break;
1193                         case 'publish':
1194                         case 'future':
1195                                 if ( ! current_user_can( $post_type->cap->publish_posts ) )
1196                                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to publish posts in this post type' ) );
1197                                 break;
1198                         default:
1199                                 if ( ! get_post_status_object( $post_data['post_status'] ) )
1200                                         $post_data['post_status'] = 'draft';
1201                         break;
1202                 }
1203
1204                 if ( ! empty( $post_data['post_password'] ) && ! current_user_can( $post_type->cap->publish_posts ) )
1205                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to create password protected posts in this post type' ) );
1206
1207                 $post_data['post_author'] = absint( $post_data['post_author'] );
1208                 if ( ! empty( $post_data['post_author'] ) && $post_data['post_author'] != $user->ID ) {
1209                         if ( ! current_user_can( $post_type->cap->edit_others_posts ) )
1210                                 return new IXR_Error( 401, __( 'You are not allowed to create posts as this user.' ) );
1211
1212                         $author = get_userdata( $post_data['post_author'] );
1213
1214                         if ( ! $author )
1215                                 return new IXR_Error( 404, __( 'Invalid author ID.' ) );
1216                 } else {
1217                         $post_data['post_author'] = $user->ID;
1218                 }
1219
1220                 if ( isset( $post_data['comment_status'] ) && $post_data['comment_status'] != 'open' && $post_data['comment_status'] != 'closed' )
1221                         unset( $post_data['comment_status'] );
1222
1223                 if ( isset( $post_data['ping_status'] ) && $post_data['ping_status'] != 'open' && $post_data['ping_status'] != 'closed' )
1224                         unset( $post_data['ping_status'] );
1225
1226                 // Do some timestamp voodoo
1227                 if ( ! empty( $post_data['post_date_gmt'] ) ) {
1228                         // We know this is supposed to be GMT, so we're going to slap that Z on there by force
1229                         $dateCreated = rtrim( $post_data['post_date_gmt']->getIso(), 'Z' ) . 'Z';
1230                 } elseif ( ! empty( $post_data['post_date'] ) ) {
1231                         $dateCreated = $post_data['post_date']->getIso();
1232                 }
1233
1234                 if ( ! empty( $dateCreated ) ) {
1235                         $post_data['post_date'] = get_date_from_gmt( iso8601_to_datetime( $dateCreated ) );
1236                         $post_data['post_date_gmt'] = iso8601_to_datetime( $dateCreated, 'GMT' );
1237                 }
1238
1239                 if ( ! isset( $post_data['ID'] ) )
1240                         $post_data['ID'] = get_default_post_to_edit( $post_data['post_type'], true )->ID;
1241                 $post_ID = $post_data['ID'];
1242
1243                 if ( $post_data['post_type'] == 'post' ) {
1244                         // Private and password-protected posts cannot be stickied.
1245                         if ( $post_data['post_status'] == 'private' || ! empty( $post_data['post_password'] ) ) {
1246                                 // Error if the client tried to stick the post, otherwise, silently unstick.
1247                                 if ( ! empty( $post_data['sticky'] ) )
1248                                         return new IXR_Error( 401, __( 'Sorry, you cannot stick a private post.' ) );
1249                                 if ( $update )
1250                                         unstick_post( $post_ID );
1251                         } elseif ( isset( $post_data['sticky'] ) )  {
1252                                 if ( ! current_user_can( $post_type->cap->edit_others_posts ) )
1253                                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to stick this post.' ) );
1254                                 if ( $post_data['sticky'] )
1255                                         stick_post( $post_ID );
1256                                 else
1257                                         unstick_post( $post_ID );
1258                         }
1259                 }
1260
1261                 if ( isset( $post_data['post_thumbnail'] ) ) {
1262                         // empty value deletes, non-empty value adds/updates
1263                         if ( ! $post_data['post_thumbnail'] )
1264                                 delete_post_thumbnail( $post_ID );
1265                         elseif ( ! get_post( absint( $post_data['post_thumbnail'] ) ) )
1266                                 return new IXR_Error( 404, __( 'Invalid attachment ID.' ) );
1267                         set_post_thumbnail( $post_ID, $post_data['post_thumbnail'] );
1268                         unset( $content_struct['post_thumbnail'] );
1269                 }
1270
1271                 if ( isset( $post_data['custom_fields'] ) )
1272                         $this->set_custom_fields( $post_ID, $post_data['custom_fields'] );
1273
1274                 if ( isset( $post_data['terms'] ) || isset( $post_data['terms_names'] ) ) {
1275                         $post_type_taxonomies = get_object_taxonomies( $post_data['post_type'], 'objects' );
1276
1277                         // accumulate term IDs from terms and terms_names
1278                         $terms = array();
1279
1280                         // first validate the terms specified by ID
1281                         if ( isset( $post_data['terms'] ) && is_array( $post_data['terms'] ) ) {
1282                                 $taxonomies = array_keys( $post_data['terms'] );
1283
1284                                 // validating term ids
1285                                 foreach ( $taxonomies as $taxonomy ) {
1286                                         if ( ! array_key_exists( $taxonomy , $post_type_taxonomies ) )
1287                                                 return new IXR_Error( 401, __( 'Sorry, one of the given taxonomies is not supported by the post type.' ) );
1288
1289                                         if ( ! current_user_can( $post_type_taxonomies[$taxonomy]->cap->assign_terms ) )
1290                                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to assign a term to one of the given taxonomies.' ) );
1291
1292                                         $term_ids = $post_data['terms'][$taxonomy];
1293                                         $terms[ $taxonomy ] = array();
1294                                         foreach ( $term_ids as $term_id ) {
1295                                                 $term = get_term_by( 'id', $term_id, $taxonomy );
1296
1297                                                 if ( ! $term )
1298                                                         return new IXR_Error( 403, __( 'Invalid term ID' ) );
1299
1300                                                 $terms[$taxonomy][] = (int) $term_id;
1301                                         }
1302                                 }
1303                         }
1304
1305                         // now validate terms specified by name
1306                         if ( isset( $post_data['terms_names'] ) && is_array( $post_data['terms_names'] ) ) {
1307                                 $taxonomies = array_keys( $post_data['terms_names'] );
1308
1309                                 foreach ( $taxonomies as $taxonomy ) {
1310                                         if ( ! array_key_exists( $taxonomy , $post_type_taxonomies ) )
1311                                                 return new IXR_Error( 401, __( 'Sorry, one of the given taxonomies is not supported by the post type.' ) );
1312
1313                                         if ( ! current_user_can( $post_type_taxonomies[$taxonomy]->cap->assign_terms ) )
1314                                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to assign a term to one of the given taxonomies.' ) );
1315
1316                                         // for hierarchical taxonomies, we can't assign a term when multiple terms in the hierarchy share the same name
1317                                         $ambiguous_terms = array();
1318                                         if ( is_taxonomy_hierarchical( $taxonomy ) ) {
1319                                                 $tax_term_names = get_terms( $taxonomy, array( 'fields' => 'names', 'hide_empty' => false ) );
1320
1321                                                 // count the number of terms with the same name
1322                                                 $tax_term_names_count = array_count_values( $tax_term_names );
1323
1324                                                 // filter out non-ambiguous term names
1325                                                 $ambiguous_tax_term_counts = array_filter( $tax_term_names_count, array( $this, '_is_greater_than_one') );
1326
1327                                                 $ambiguous_terms = array_keys( $ambiguous_tax_term_counts );
1328                                         }
1329
1330                                         $term_names = $post_data['terms_names'][$taxonomy];
1331                                         foreach ( $term_names as $term_name ) {
1332                                                 if ( in_array( $term_name, $ambiguous_terms ) )
1333                                                         return new IXR_Error( 401, __( 'Ambiguous term name used in a hierarchical taxonomy. Please use term ID instead.' ) );
1334
1335                                                 $term = get_term_by( 'name', $term_name, $taxonomy );
1336
1337                                                 if ( ! $term ) {
1338                                                         // term doesn't exist, so check that the user is allowed to create new terms
1339                                                         if ( ! current_user_can( $post_type_taxonomies[$taxonomy]->cap->edit_terms ) )
1340                                                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to add a term to one of the given taxonomies.' ) );
1341
1342                                                         // create the new term
1343                                                         $term_info = wp_insert_term( $term_name, $taxonomy );
1344                                                         if ( is_wp_error( $term_info ) )
1345                                                                 return new IXR_Error( 500, $term_info->get_error_message() );
1346
1347                                                         $terms[$taxonomy][] = (int) $term_info['term_id'];
1348                                                 } else {
1349                                                         $terms[$taxonomy][] = (int) $term->term_id;
1350                                                 }
1351                                         }
1352                                 }
1353                         }
1354
1355                         $post_data['tax_input'] = $terms;
1356                         unset( $post_data['terms'], $post_data['terms_names'] );
1357                 } else {
1358                         // do not allow direct submission of 'tax_input', clients must use 'terms' and/or 'terms_names'
1359                         unset( $post_data['tax_input'], $post_data['post_category'], $post_data['tags_input'] );
1360                 }
1361
1362                 if ( isset( $post_data['post_format'] ) ) {
1363                         $format = set_post_format( $post_ID, $post_data['post_format'] );
1364
1365                         if ( is_wp_error( $format ) )
1366                                 return new IXR_Error( 500, $format->get_error_message() );
1367
1368                         unset( $post_data['post_format'] );
1369                 }
1370
1371                 // Handle enclosures
1372                 $enclosure = isset( $post_data['enclosure'] ) ? $post_data['enclosure'] : null;
1373                 $this->add_enclosure_if_new( $post_ID, $enclosure );
1374
1375                 $this->attach_uploads( $post_ID, $post_data['post_content'] );
1376
1377                 /**
1378                  * Filter post data array to be inserted via XML-RPC.
1379                  *
1380                  * @since 3.4.0
1381                  *
1382                  * @param array $post_data      Parsed array of post data.
1383                  * @param array $content_struct Post data array.
1384                  */
1385                 $post_data = apply_filters( 'xmlrpc_wp_insert_post_data', $post_data, $content_struct );
1386
1387                 $post_ID = $update ? wp_update_post( $post_data, true ) : wp_insert_post( $post_data, true );
1388                 if ( is_wp_error( $post_ID ) )
1389                         return new IXR_Error( 500, $post_ID->get_error_message() );
1390
1391                 if ( ! $post_ID )
1392                         return new IXR_Error( 401, __( 'Sorry, your entry could not be posted. Something wrong happened.' ) );
1393
1394                 return strval( $post_ID );
1395         }
1396
1397         /**
1398          * Edit a post for any registered post type.
1399          *
1400          * The $content_struct parameter only needs to contain fields that
1401          * should be changed. All other fields will retain their existing values.
1402          *
1403          * @since 3.4.0
1404          *
1405          * @param array $args Method parameters. Contains:
1406          *  - int     $blog_id (unused)
1407          *  - string  $username
1408          *  - string  $password
1409          *  - int     $post_id
1410          *  - array   $content_struct
1411          * @return bool|IXR_Error true on success
1412          */
1413         public function wp_editPost( $args ) {
1414                 if ( ! $this->minimum_args( $args, 5 ) )
1415                         return $this->error;
1416
1417                 $this->escape( $args );
1418
1419                 $username       = $args[1];
1420                 $password       = $args[2];
1421                 $post_id        = (int) $args[3];
1422                 $content_struct = $args[4];
1423
1424                 if ( ! $user = $this->login( $username, $password ) )
1425                         return $this->error;
1426
1427                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1428                 do_action( 'xmlrpc_call', 'wp.editPost' );
1429
1430                 $post = get_post( $post_id, ARRAY_A );
1431
1432                 if ( empty( $post['ID'] ) )
1433                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
1434
1435                 if ( isset( $content_struct['if_not_modified_since'] ) ) {
1436                         // If the post has been modified since the date provided, return an error.
1437                         if ( mysql2date( 'U', $post['post_modified_gmt'] ) > $content_struct['if_not_modified_since']->getTimestamp() ) {
1438                                 return new IXR_Error( 409, __( 'There is a revision of this post that is more recent.' ) );
1439                         }
1440                 }
1441
1442                 // convert the date field back to IXR form
1443                 $post['post_date'] = $this->_convert_date( $post['post_date'] );
1444
1445                 // ignore the existing GMT date if it is empty or a non-GMT date was supplied in $content_struct,
1446                 // since _insert_post will ignore the non-GMT date if the GMT date is set
1447                 if ( $post['post_date_gmt'] == '0000-00-00 00:00:00' || isset( $content_struct['post_date'] ) )
1448                         unset( $post['post_date_gmt'] );
1449                 else
1450                         $post['post_date_gmt'] = $this->_convert_date( $post['post_date_gmt'] );
1451
1452                 $this->escape( $post );
1453                 $merged_content_struct = array_merge( $post, $content_struct );
1454
1455                 $retval = $this->_insert_post( $user, $merged_content_struct );
1456                 if ( $retval instanceof IXR_Error )
1457                         return $retval;
1458
1459                 return true;
1460         }
1461
1462         /**
1463          * Delete a post for any registered post type.
1464          *
1465          * @since 3.4.0
1466          *
1467          * @uses wp_delete_post()
1468          * @param array $args Method parameters. Contains:
1469          *  - int     $blog_id (unused)
1470          *  - string  $username
1471          *  - string  $password
1472          *  - int     $post_id
1473          * @return bool|IXR_Error true on success
1474          */
1475         public function wp_deletePost( $args ) {
1476                 if ( ! $this->minimum_args( $args, 4 ) )
1477                         return $this->error;
1478
1479                 $this->escape( $args );
1480
1481                 $username   = $args[1];
1482                 $password   = $args[2];
1483                 $post_id    = (int) $args[3];
1484
1485                 if ( ! $user = $this->login( $username, $password ) )
1486                         return $this->error;
1487
1488                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1489                 do_action( 'xmlrpc_call', 'wp.deletePost' );
1490
1491                 $post = get_post( $post_id, ARRAY_A );
1492                 if ( empty( $post['ID'] ) )
1493                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
1494
1495                 if ( ! current_user_can( 'delete_post', $post_id ) )
1496                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to delete this post.' ) );
1497
1498                 $result = wp_delete_post( $post_id );
1499
1500                 if ( ! $result )
1501                         return new IXR_Error( 500, __( 'The post cannot be deleted.' ) );
1502
1503                 return true;
1504         }
1505
1506         /**
1507          * Retrieve a post.
1508          *
1509          * @since 3.4.0
1510          *
1511          * The optional $fields parameter specifies what fields will be included
1512          * in the response array. This should be a list of field names. 'post_id' will
1513          * always be included in the response regardless of the value of $fields.
1514          *
1515          * Instead of, or in addition to, individual field names, conceptual group
1516          * names can be used to specify multiple fields. The available conceptual
1517          * groups are 'post' (all basic fields), 'taxonomies', 'custom_fields',
1518          * and 'enclosure'.
1519          *
1520          * @uses get_post()
1521          * @param array $args Method parameters. Contains:
1522          *  - int     $blog_id (unset)
1523          *  - string  $username
1524          *  - string  $password
1525          *  - int     $post_id
1526          *  - array   $fields optional
1527          * @return array|IXR_Error Array contains (based on $fields parameter):
1528          *  - 'post_id'
1529          *  - 'post_title'
1530          *  - 'post_date'
1531          *  - 'post_date_gmt'
1532          *  - 'post_modified'
1533          *  - 'post_modified_gmt'
1534          *  - 'post_status'
1535          *  - 'post_type'
1536          *  - 'post_name'
1537          *  - 'post_author'
1538          *  - 'post_password'
1539          *  - 'post_excerpt'
1540          *  - 'post_content'
1541          *  - 'link'
1542          *  - 'comment_status'
1543          *  - 'ping_status'
1544          *  - 'sticky'
1545          *  - 'custom_fields'
1546          *  - 'terms'
1547          *  - 'categories'
1548          *  - 'tags'
1549          *  - 'enclosure'
1550          */
1551         public function wp_getPost( $args ) {
1552                 if ( ! $this->minimum_args( $args, 4 ) )
1553                         return $this->error;
1554
1555                 $this->escape( $args );
1556
1557                 $username           = $args[1];
1558                 $password           = $args[2];
1559                 $post_id            = (int) $args[3];
1560
1561                 if ( isset( $args[4] ) ) {
1562                         $fields = $args[4];
1563                 } else {
1564                         /**
1565                          * Filter the list of post query fields used by the given XML-RPC method.
1566                          *
1567                          * @since 3.4.0
1568                          *
1569                          * @param array $fields  Array of post fields.
1570                          * @param string $method Method name.
1571                          */
1572                         $fields = apply_filters( 'xmlrpc_default_post_fields', array( 'post', 'terms', 'custom_fields' ), 'wp.getPost' );
1573                 }
1574
1575                 if ( ! $user = $this->login( $username, $password ) )
1576                         return $this->error;
1577
1578                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1579                 do_action( 'xmlrpc_call', 'wp.getPost' );
1580
1581                 $post = get_post( $post_id, ARRAY_A );
1582
1583                 if ( empty( $post['ID'] ) )
1584                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
1585
1586                 if ( ! current_user_can( 'edit_post', $post_id ) )
1587                         return new IXR_Error( 401, __( 'Sorry, you cannot edit this post.' ) );
1588
1589                 return $this->_prepare_post( $post, $fields );
1590         }
1591
1592         /**
1593          * Retrieve posts.
1594          *
1595          * @since 3.4.0
1596          *
1597          * The optional $filter parameter modifies the query used to retrieve posts.
1598          * Accepted keys are 'post_type', 'post_status', 'number', 'offset',
1599          * 'orderby', and 'order'.
1600          *
1601          * The optional $fields parameter specifies what fields will be included
1602          * in the response array.
1603          *
1604          * @uses wp_get_recent_posts()
1605          * @see wp_getPost() for more on $fields
1606          * @see get_posts() for more on $filter values
1607          *
1608          * @param array $args Method parameters. Contains:
1609          *  - int     $blog_id (unused)
1610          *  - string  $username
1611          *  - string  $password
1612          *  - array   $filter optional
1613          *  - array   $fields optional
1614          * @return array|IXR_Error Array contains a collection of posts.
1615          */
1616         public function wp_getPosts( $args ) {
1617                 if ( ! $this->minimum_args( $args, 3 ) )
1618                         return $this->error;
1619
1620                 $this->escape( $args );
1621
1622                 $username   = $args[1];
1623                 $password   = $args[2];
1624                 $filter     = isset( $args[3] ) ? $args[3] : array();
1625
1626                 if ( isset( $args[4] ) ) {
1627                         $fields = $args[4];
1628                 } else {
1629                         /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1630                         $fields = apply_filters( 'xmlrpc_default_post_fields', array( 'post', 'terms', 'custom_fields' ), 'wp.getPosts' );
1631                 }
1632
1633                 if ( ! $user = $this->login( $username, $password ) )
1634                         return $this->error;
1635
1636                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1637                 do_action( 'xmlrpc_call', 'wp.getPosts' );
1638
1639                 $query = array();
1640
1641                 if ( isset( $filter['post_type'] ) ) {
1642                         $post_type = get_post_type_object( $filter['post_type'] );
1643                         if ( ! ( (bool) $post_type ) )
1644                                 return new IXR_Error( 403, __( 'The post type specified is not valid' ) );
1645                 } else {
1646                         $post_type = get_post_type_object( 'post' );
1647                 }
1648
1649                 if ( ! current_user_can( $post_type->cap->edit_posts ) )
1650                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit posts in this post type' ));
1651
1652                 $query['post_type'] = $post_type->name;
1653
1654                 if ( isset( $filter['post_status'] ) )
1655                         $query['post_status'] = $filter['post_status'];
1656
1657                 if ( isset( $filter['number'] ) )
1658                         $query['numberposts'] = absint( $filter['number'] );
1659
1660                 if ( isset( $filter['offset'] ) )
1661                         $query['offset'] = absint( $filter['offset'] );
1662
1663                 if ( isset( $filter['orderby'] ) ) {
1664                         $query['orderby'] = $filter['orderby'];
1665
1666                         if ( isset( $filter['order'] ) )
1667                                 $query['order'] = $filter['order'];
1668                 }
1669
1670                 if ( isset( $filter['s'] ) ) {
1671                         $query['s'] = $filter['s'];
1672                 }
1673
1674                 $posts_list = wp_get_recent_posts( $query );
1675
1676                 if ( ! $posts_list )
1677                         return array();
1678
1679                 // holds all the posts data
1680                 $struct = array();
1681
1682                 foreach ( $posts_list as $post ) {
1683                         if ( ! current_user_can( 'edit_post', $post['ID'] ) )
1684                                 continue;
1685
1686                         $struct[] = $this->_prepare_post( $post, $fields );
1687                 }
1688
1689                 return $struct;
1690         }
1691
1692         /**
1693          * Create a new term.
1694          *
1695          * @since 3.4.0
1696          *
1697          * @uses wp_insert_term()
1698          * @param array $args Method parameters. Contains:
1699          *  - int     $blog_id (unused)
1700          *  - string  $username
1701          *  - string  $password
1702          *  - array   $content_struct
1703          *      The $content_struct must contain:
1704          *      - 'name'
1705          *      - 'taxonomy'
1706          *      Also, it can optionally contain:
1707          *      - 'parent'
1708          *      - 'description'
1709          *      - 'slug'
1710          * @return string|IXR_Error term_id
1711          */
1712         public function wp_newTerm( $args ) {
1713                 if ( ! $this->minimum_args( $args, 4 ) )
1714                         return $this->error;
1715
1716                 $this->escape( $args );
1717
1718                 $username           = $args[1];
1719                 $password           = $args[2];
1720                 $content_struct     = $args[3];
1721
1722                 if ( ! $user = $this->login( $username, $password ) )
1723                         return $this->error;
1724
1725                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1726                 do_action( 'xmlrpc_call', 'wp.newTerm' );
1727
1728                 if ( ! taxonomy_exists( $content_struct['taxonomy'] ) )
1729                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
1730
1731                 $taxonomy = get_taxonomy( $content_struct['taxonomy'] );
1732
1733                 if ( ! current_user_can( $taxonomy->cap->manage_terms ) )
1734                         return new IXR_Error( 401, __( 'You are not allowed to create terms in this taxonomy.' ) );
1735
1736                 $taxonomy = (array) $taxonomy;
1737
1738                 // hold the data of the term
1739                 $term_data = array();
1740
1741                 $term_data['name'] = trim( $content_struct['name'] );
1742                 if ( empty( $term_data['name'] ) )
1743                         return new IXR_Error( 403, __( 'The term name cannot be empty.' ) );
1744
1745                 if ( isset( $content_struct['parent'] ) ) {
1746                         if ( ! $taxonomy['hierarchical'] )
1747                                 return new IXR_Error( 403, __( 'This taxonomy is not hierarchical.' ) );
1748
1749                         $parent_term_id = (int) $content_struct['parent'];
1750                         $parent_term = get_term( $parent_term_id , $taxonomy['name'] );
1751
1752                         if ( is_wp_error( $parent_term ) )
1753                                 return new IXR_Error( 500, $parent_term->get_error_message() );
1754
1755                         if ( ! $parent_term )
1756                                 return new IXR_Error( 403, __( 'Parent term does not exist.' ) );
1757
1758                         $term_data['parent'] = $content_struct['parent'];
1759                 }
1760
1761                 if ( isset( $content_struct['description'] ) )
1762                         $term_data['description'] = $content_struct['description'];
1763
1764                 if ( isset( $content_struct['slug'] ) )
1765                         $term_data['slug'] = $content_struct['slug'];
1766
1767                 $term = wp_insert_term( $term_data['name'] , $taxonomy['name'] , $term_data );
1768
1769                 if ( is_wp_error( $term ) )
1770                         return new IXR_Error( 500, $term->get_error_message() );
1771
1772                 if ( ! $term )
1773                         return new IXR_Error( 500, __( 'Sorry, your term could not be created. Something wrong happened.' ) );
1774
1775                 return strval( $term['term_id'] );
1776         }
1777
1778         /**
1779          * Edit a term.
1780          *
1781          * @since 3.4.0
1782          *
1783          * @uses wp_update_term()
1784          * @param array $args Method parameters. Contains:
1785          *  - int     $blog_id (unused)
1786          *  - string  $username
1787          *  - string  $password
1788          *  - string  $term_id
1789          *  - array   $content_struct
1790          *      The $content_struct must contain:
1791          *      - 'taxonomy'
1792          *      Also, it can optionally contain:
1793          *      - 'name'
1794          *      - 'parent'
1795          *      - 'description'
1796          *      - 'slug'
1797          * @return bool|IXR_Error True, on success.
1798          */
1799         public function wp_editTerm( $args ) {
1800                 if ( ! $this->minimum_args( $args, 5 ) )
1801                         return $this->error;
1802
1803                 $this->escape( $args );
1804
1805                 $username           = $args[1];
1806                 $password           = $args[2];
1807                 $term_id            = (int) $args[3];
1808                 $content_struct     = $args[4];
1809
1810                 if ( ! $user = $this->login( $username, $password ) )
1811                         return $this->error;
1812
1813                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1814                 do_action( 'xmlrpc_call', 'wp.editTerm' );
1815
1816                 if ( ! taxonomy_exists( $content_struct['taxonomy'] ) )
1817                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
1818
1819                 $taxonomy = get_taxonomy( $content_struct['taxonomy'] );
1820
1821                 if ( ! current_user_can( $taxonomy->cap->edit_terms ) )
1822                         return new IXR_Error( 401, __( 'You are not allowed to edit terms in this taxonomy.' ) );
1823
1824                 $taxonomy = (array) $taxonomy;
1825
1826                 // hold the data of the term
1827                 $term_data = array();
1828
1829                 $term = get_term( $term_id , $content_struct['taxonomy'] );
1830
1831                 if ( is_wp_error( $term ) )
1832                         return new IXR_Error( 500, $term->get_error_message() );
1833
1834                 if ( ! $term )
1835                         return new IXR_Error( 404, __( 'Invalid term ID' ) );
1836
1837                 if ( isset( $content_struct['name'] ) ) {
1838                         $term_data['name'] = trim( $content_struct['name'] );
1839
1840                         if ( empty( $term_data['name'] ) )
1841                                 return new IXR_Error( 403, __( 'The term name cannot be empty.' ) );
1842                 }
1843
1844                 if ( isset( $content_struct['parent'] ) ) {
1845                         if ( ! $taxonomy['hierarchical'] )
1846                                 return new IXR_Error( 403, __( "This taxonomy is not hierarchical so you can't set a parent." ) );
1847
1848                         $parent_term_id = (int) $content_struct['parent'];
1849                         $parent_term = get_term( $parent_term_id , $taxonomy['name'] );
1850
1851                         if ( is_wp_error( $parent_term ) )
1852                                 return new IXR_Error( 500, $parent_term->get_error_message() );
1853
1854                         if ( ! $parent_term )
1855                                 return new IXR_Error( 403, __( 'Parent term does not exist.' ) );
1856
1857                         $term_data['parent'] = $content_struct['parent'];
1858                 }
1859
1860                 if ( isset( $content_struct['description'] ) )
1861                         $term_data['description'] = $content_struct['description'];
1862
1863                 if ( isset( $content_struct['slug'] ) )
1864                         $term_data['slug'] = $content_struct['slug'];
1865
1866                 $term = wp_update_term( $term_id , $taxonomy['name'] , $term_data );
1867
1868                 if ( is_wp_error( $term ) )
1869                         return new IXR_Error( 500, $term->get_error_message() );
1870
1871                 if ( ! $term )
1872                         return new IXR_Error( 500, __( 'Sorry, editing the term failed.' ) );
1873
1874                 return true;
1875         }
1876
1877         /**
1878          * Delete a term.
1879          *
1880          * @since 3.4.0
1881          *
1882          * @uses wp_delete_term()
1883          * @param array $args Method parameters. Contains:
1884          *  - int     $blog_id (unused)
1885          *  - string  $username
1886          *  - string  $password
1887          *  - string  $taxnomy_name
1888          *  - string     $term_id
1889          * @return boolean|IXR_Error If it suceeded true else a reason why not
1890          */
1891         public function wp_deleteTerm( $args ) {
1892                 if ( ! $this->minimum_args( $args, 5 ) )
1893                         return $this->error;
1894
1895                 $this->escape( $args );
1896
1897                 $username           = $args[1];
1898                 $password           = $args[2];
1899                 $taxonomy           = $args[3];
1900                 $term_id            = (int) $args[4];
1901
1902                 if ( ! $user = $this->login( $username, $password ) )
1903                         return $this->error;
1904
1905                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1906                 do_action( 'xmlrpc_call', 'wp.deleteTerm' );
1907
1908                 if ( ! taxonomy_exists( $taxonomy ) )
1909                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
1910
1911                 $taxonomy = get_taxonomy( $taxonomy );
1912
1913                 if ( ! current_user_can( $taxonomy->cap->delete_terms ) )
1914                         return new IXR_Error( 401, __( 'You are not allowed to delete terms in this taxonomy.' ) );
1915
1916                 $term = get_term( $term_id, $taxonomy->name );
1917
1918                 if ( is_wp_error( $term ) )
1919                         return new IXR_Error( 500, $term->get_error_message() );
1920
1921                 if ( ! $term )
1922                         return new IXR_Error( 404, __( 'Invalid term ID' ) );
1923
1924                 $result = wp_delete_term( $term_id, $taxonomy->name );
1925
1926                 if ( is_wp_error( $result ) )
1927                         return new IXR_Error( 500, $term->get_error_message() );
1928
1929                 if ( ! $result )
1930                         return new IXR_Error( 500, __( 'Sorry, deleting the term failed.' ) );
1931
1932                 return $result;
1933         }
1934
1935         /**
1936          * Retrieve a term.
1937          *
1938          * @since 3.4.0
1939          *
1940          * @uses get_term()
1941          * @param array $args Method parameters. Contains:
1942          *  - int     $blog_id (unused)
1943          *  - string  $username
1944          *  - string  $password
1945          *  - string  $taxonomy
1946          *  - string  $term_id
1947          * @return array|IXR_Error Array contains:
1948          *  - 'term_id'
1949          *  - 'name'
1950          *  - 'slug'
1951          *  - 'term_group'
1952          *  - 'term_taxonomy_id'
1953          *  - 'taxonomy'
1954          *  - 'description'
1955          *  - 'parent'
1956          *  - 'count'
1957          */
1958         public function wp_getTerm( $args ) {
1959                 if ( ! $this->minimum_args( $args, 5 ) )
1960                         return $this->error;
1961
1962                 $this->escape( $args );
1963
1964                 $username           = $args[1];
1965                 $password           = $args[2];
1966                 $taxonomy           = $args[3];
1967                 $term_id            = (int) $args[4];
1968
1969                 if ( ! $user = $this->login( $username, $password ) )
1970                         return $this->error;
1971
1972                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1973                 do_action( 'xmlrpc_call', 'wp.getTerm' );
1974
1975                 if ( ! taxonomy_exists( $taxonomy ) )
1976                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
1977
1978                 $taxonomy = get_taxonomy( $taxonomy );
1979
1980                 if ( ! current_user_can( $taxonomy->cap->assign_terms ) )
1981                         return new IXR_Error( 401, __( 'You are not allowed to assign terms in this taxonomy.' ) );
1982
1983                 $term = get_term( $term_id , $taxonomy->name, ARRAY_A );
1984
1985                 if ( is_wp_error( $term ) )
1986                         return new IXR_Error( 500, $term->get_error_message() );
1987
1988                 if ( ! $term )
1989                         return new IXR_Error( 404, __( 'Invalid term ID' ) );
1990
1991                 return $this->_prepare_term( $term );
1992         }
1993
1994         /**
1995          * Retrieve all terms for a taxonomy.
1996          *
1997          * @since 3.4.0
1998          *
1999          * The optional $filter parameter modifies the query used to retrieve terms.
2000          * Accepted keys are 'number', 'offset', 'orderby', 'order', 'hide_empty', and 'search'.
2001          *
2002          * @uses get_terms()
2003          * @param array $args Method parameters. Contains:
2004          *  - int     $blog_id (unused)
2005          *  - string  $username
2006          *  - string  $password
2007          *  - string  $taxonomy
2008          *  - array   $filter optional
2009          * @return array|IXR_Error terms
2010          */
2011         public function wp_getTerms( $args ) {
2012                 if ( ! $this->minimum_args( $args, 4 ) )
2013                         return $this->error;
2014
2015                 $this->escape( $args );
2016
2017                 $username       = $args[1];
2018                 $password       = $args[2];
2019                 $taxonomy       = $args[3];
2020                 $filter         = isset( $args[4] ) ? $args[4] : array();
2021
2022                 if ( ! $user = $this->login( $username, $password ) )
2023                         return $this->error;
2024
2025                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2026                 do_action( 'xmlrpc_call', 'wp.getTerms' );
2027
2028                 if ( ! taxonomy_exists( $taxonomy ) )
2029                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
2030
2031                 $taxonomy = get_taxonomy( $taxonomy );
2032
2033                 if ( ! current_user_can( $taxonomy->cap->assign_terms ) )
2034                         return new IXR_Error( 401, __( 'You are not allowed to assign terms in this taxonomy.' ) );
2035
2036                 $query = array();
2037
2038                 if ( isset( $filter['number'] ) )
2039                         $query['number'] = absint( $filter['number'] );
2040
2041                 if ( isset( $filter['offset'] ) )
2042                         $query['offset'] = absint( $filter['offset'] );
2043
2044                 if ( isset( $filter['orderby'] ) ) {
2045                         $query['orderby'] = $filter['orderby'];
2046
2047                         if ( isset( $filter['order'] ) )
2048                                 $query['order'] = $filter['order'];
2049                 }
2050
2051                 if ( isset( $filter['hide_empty'] ) )
2052                         $query['hide_empty'] = $filter['hide_empty'];
2053                 else
2054                         $query['get'] = 'all';
2055
2056                 if ( isset( $filter['search'] ) )
2057                         $query['search'] = $filter['search'];
2058
2059                 $terms = get_terms( $taxonomy->name, $query );
2060
2061                 if ( is_wp_error( $terms ) )
2062                         return new IXR_Error( 500, $terms->get_error_message() );
2063
2064                 $struct = array();
2065
2066                 foreach ( $terms as $term ) {
2067                         $struct[] = $this->_prepare_term( $term );
2068                 }
2069
2070                 return $struct;
2071         }
2072
2073         /**
2074          * Retrieve a taxonomy.
2075          *
2076          * @since 3.4.0
2077          *
2078          * @uses get_taxonomy()
2079          * @param array $args Method parameters. Contains:
2080          *  - int     $blog_id (unused)
2081          *  - string  $username
2082          *  - string  $password
2083          *  - string  $taxonomy
2084          * @return array|IXR_Error (@see get_taxonomy())
2085          */
2086         public function wp_getTaxonomy( $args ) {
2087                 if ( ! $this->minimum_args( $args, 4 ) )
2088                         return $this->error;
2089
2090                 $this->escape( $args );
2091
2092                 $username       = $args[1];
2093                 $password       = $args[2];
2094                 $taxonomy       = $args[3];
2095
2096                 if ( isset( $args[4] ) ) {
2097                         $fields = $args[4];
2098                 } else {
2099                         /**
2100                          * Filter the taxonomy query fields used by the given XML-RPC method.
2101                          *
2102                          * @since 3.4.0
2103                          *
2104                          * @param array  $fields An array of taxonomy fields to retrieve.
2105                          * @param string $method The method name.
2106                          */
2107                         $fields = apply_filters( 'xmlrpc_default_taxonomy_fields', array( 'labels', 'cap', 'object_type' ), 'wp.getTaxonomy' );
2108                 }
2109
2110                 if ( ! $user = $this->login( $username, $password ) )
2111                         return $this->error;
2112
2113                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2114                 do_action( 'xmlrpc_call', 'wp.getTaxonomy' );
2115
2116                 if ( ! taxonomy_exists( $taxonomy ) )
2117                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
2118
2119                 $taxonomy = get_taxonomy( $taxonomy );
2120
2121                 if ( ! current_user_can( $taxonomy->cap->assign_terms ) )
2122                         return new IXR_Error( 401, __( 'You are not allowed to assign terms in this taxonomy.' ) );
2123
2124                 return $this->_prepare_taxonomy( $taxonomy, $fields );
2125         }
2126
2127         /**
2128          * Retrieve all taxonomies.
2129          *
2130          * @since 3.4.0
2131          *
2132          * @uses get_taxonomies()
2133          * @param array $args Method parameters. Contains:
2134          *  - int     $blog_id (unused)
2135          *  - string  $username
2136          *  - string  $password
2137          * @return array taxonomies
2138          */
2139         public function wp_getTaxonomies( $args ) {
2140                 if ( ! $this->minimum_args( $args, 3 ) )
2141                         return $this->error;
2142
2143                 $this->escape( $args );
2144
2145                 $username           = $args[1];
2146                 $password           = $args[2];
2147                 $filter             = isset( $args[3] ) ? $args[3] : array( 'public' => true );
2148
2149                 if ( isset( $args[4] ) ) {
2150                         $fields = $args[4];
2151                 } else {
2152                         /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2153                         $fields = apply_filters( 'xmlrpc_default_taxonomy_fields', array( 'labels', 'cap', 'object_type' ), 'wp.getTaxonomies' );
2154                 }
2155
2156                 if ( ! $user = $this->login( $username, $password ) )
2157                         return $this->error;
2158
2159                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2160                 do_action( 'xmlrpc_call', 'wp.getTaxonomies' );
2161
2162                 $taxonomies = get_taxonomies( $filter, 'objects' );
2163
2164                 // holds all the taxonomy data
2165                 $struct = array();
2166
2167                 foreach ( $taxonomies as $taxonomy ) {
2168                         // capability check for post_types
2169                         if ( ! current_user_can( $taxonomy->cap->assign_terms ) )
2170                                 continue;
2171
2172                         $struct[] = $this->_prepare_taxonomy( $taxonomy, $fields );
2173                 }
2174
2175                 return $struct;
2176         }
2177
2178         /**
2179          * Retrieve a user.
2180          *
2181          * The optional $fields parameter specifies what fields will be included
2182          * in the response array. This should be a list of field names. 'user_id' will
2183          * always be included in the response regardless of the value of $fields.
2184          *
2185          * Instead of, or in addition to, individual field names, conceptual group
2186          * names can be used to specify multiple fields. The available conceptual
2187          * groups are 'basic' and 'all'.
2188          *
2189          * @uses get_userdata()
2190          * @param array $args Method parameters. Contains:
2191          *  - int     $blog_id (unused)
2192          *  - string  $username
2193          *  - string  $password
2194          *  - int     $user_id
2195          *  - array   $fields optional
2196          * @return array|IXR_Error Array contains (based on $fields parameter):
2197          *  - 'user_id'
2198          *  - 'username'
2199          *  - 'first_name'
2200          *  - 'last_name'
2201          *  - 'registered'
2202          *  - 'bio'
2203          *  - 'email'
2204          *  - 'nickname'
2205          *  - 'nicename'
2206          *  - 'url'
2207          *  - 'display_name'
2208          *  - 'roles'
2209          */
2210         public function wp_getUser( $args ) {
2211                 if ( ! $this->minimum_args( $args, 4 ) )
2212                         return $this->error;
2213
2214                 $this->escape( $args );
2215
2216                 $username   = $args[1];
2217                 $password   = $args[2];
2218                 $user_id    = (int) $args[3];
2219
2220                 if ( isset( $args[4] ) ) {
2221                         $fields = $args[4];
2222                 } else {
2223                         /**
2224                          * Filter the default user query fields used by the given XML-RPC method.
2225                          *
2226                          * @since 3.5.0
2227                          *
2228                          * @param array  $fields User query fields for given method. Default 'all'.
2229                          * @param string $method The method name.
2230                          */
2231                         $fields = apply_filters( 'xmlrpc_default_user_fields', array( 'all' ), 'wp.getUser' );
2232                 }
2233
2234                 if ( ! $user = $this->login( $username, $password ) )
2235                         return $this->error;
2236
2237                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2238                 do_action( 'xmlrpc_call', 'wp.getUser' );
2239
2240                 if ( ! current_user_can( 'edit_user', $user_id ) )
2241                         return new IXR_Error( 401, __( 'Sorry, you cannot edit users.' ) );
2242
2243                 $user_data = get_userdata( $user_id );
2244
2245                 if ( ! $user_data )
2246                         return new IXR_Error( 404, __( 'Invalid user ID' ) );
2247
2248                 return $this->_prepare_user( $user_data, $fields );
2249         }
2250
2251         /**
2252          * Retrieve users.
2253          *
2254          * The optional $filter parameter modifies the query used to retrieve users.
2255          * Accepted keys are 'number' (default: 50), 'offset' (default: 0), 'role',
2256          * 'who', 'orderby', and 'order'.
2257          *
2258          * The optional $fields parameter specifies what fields will be included
2259          * in the response array.
2260          *
2261          * @uses get_users()
2262          * @see wp_getUser() for more on $fields and return values
2263          *
2264          * @param array $args Method parameters. Contains:
2265          *  - int     $blog_id (unused)
2266          *  - string  $username
2267          *  - string  $password
2268          *  - array   $filter optional
2269          *  - array   $fields optional
2270          * @return array|IXR_Error users data
2271          */
2272         public function wp_getUsers( $args ) {
2273                 if ( ! $this->minimum_args( $args, 3 ) )
2274                         return $this->error;
2275
2276                 $this->escape( $args );
2277
2278                 $username   = $args[1];
2279                 $password   = $args[2];
2280                 $filter     = isset( $args[3] ) ? $args[3] : array();
2281
2282                 if ( isset( $args[4] ) ) {
2283                         $fields = $args[4];
2284                 } else {
2285                         /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2286                         $fields = apply_filters( 'xmlrpc_default_user_fields', array( 'all' ), 'wp.getUsers' );
2287                 }
2288
2289                 if ( ! $user = $this->login( $username, $password ) )
2290                         return $this->error;
2291
2292                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2293                 do_action( 'xmlrpc_call', 'wp.getUsers' );
2294
2295                 if ( ! current_user_can( 'list_users' ) )
2296                         return new IXR_Error( 401, __( 'Sorry, you cannot list users.' ) );
2297
2298                 $query = array( 'fields' => 'all_with_meta' );
2299
2300                 $query['number'] = ( isset( $filter['number'] ) ) ? absint( $filter['number'] ) : 50;
2301                 $query['offset'] = ( isset( $filter['offset'] ) ) ? absint( $filter['offset'] ) : 0;
2302
2303                 if ( isset( $filter['orderby'] ) ) {
2304                         $query['orderby'] = $filter['orderby'];
2305
2306                         if ( isset( $filter['order'] ) )
2307                                 $query['order'] = $filter['order'];
2308                 }
2309
2310                 if ( isset( $filter['role'] ) ) {
2311                         if ( get_role( $filter['role'] ) === null )
2312                                 return new IXR_Error( 403, __( 'The role specified is not valid' ) );
2313
2314                         $query['role'] = $filter['role'];
2315                 }
2316
2317                 if ( isset( $filter['who'] ) ) {
2318                         $query['who'] = $filter['who'];
2319                 }
2320
2321                 $users = get_users( $query );
2322
2323                 $_users = array();
2324                 foreach ( $users as $user_data ) {
2325                         if ( current_user_can( 'edit_user', $user_data->ID ) )
2326                                 $_users[] = $this->_prepare_user( $user_data, $fields );
2327                 }
2328                 return $_users;
2329         }
2330
2331         /**
2332          * Retrieve information about the requesting user.
2333          *
2334          * @uses get_userdata()
2335          * @param array $args Method parameters. Contains:
2336          *  - int     $blog_id (unused)
2337          *  - string  $username
2338          *  - string  $password
2339          *  - array   $fields optional
2340          * @return array|IXR_Error (@see wp_getUser)
2341          */
2342         public function wp_getProfile( $args ) {
2343                 if ( ! $this->minimum_args( $args, 3 ) )
2344                         return $this->error;
2345
2346                 $this->escape( $args );
2347
2348                 $username   = $args[1];
2349                 $password   = $args[2];
2350
2351                 if ( isset( $args[3] ) ) {
2352                         $fields = $args[3];
2353                 } else {
2354                         /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2355                         $fields = apply_filters( 'xmlrpc_default_user_fields', array( 'all' ), 'wp.getProfile' );
2356                 }
2357
2358                 if ( ! $user = $this->login( $username, $password ) )
2359                         return $this->error;
2360
2361                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2362                 do_action( 'xmlrpc_call', 'wp.getProfile' );
2363
2364                 if ( ! current_user_can( 'edit_user', $user->ID ) )
2365                         return new IXR_Error( 401, __( 'Sorry, you cannot edit your profile.' ) );
2366
2367                 $user_data = get_userdata( $user->ID );
2368
2369                 return $this->_prepare_user( $user_data, $fields );
2370         }
2371
2372         /**
2373          * Edit user's profile.
2374          *
2375          * @uses wp_update_user()
2376          * @param array $args Method parameters. Contains:
2377          *  - int     $blog_id (unused)
2378          *  - string  $username
2379          *  - string  $password
2380          *  - array   $content_struct
2381          *      It can optionally contain:
2382          *      - 'first_name'
2383          *      - 'last_name'
2384          *      - 'website'
2385          *      - 'display_name'
2386          *      - 'nickname'
2387          *      - 'nicename'
2388          *      - 'bio'
2389          * @return bool|IXR_Error True, on success.
2390          */
2391         public function wp_editProfile( $args ) {
2392                 if ( ! $this->minimum_args( $args, 4 ) )
2393                         return $this->error;
2394
2395                 $this->escape( $args );
2396
2397                 $username       = $args[1];
2398                 $password       = $args[2];
2399                 $content_struct = $args[3];
2400
2401                 if ( ! $user = $this->login( $username, $password ) )
2402                         return $this->error;
2403
2404                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2405                 do_action( 'xmlrpc_call', 'wp.editProfile' );
2406
2407                 if ( ! current_user_can( 'edit_user', $user->ID ) )
2408                         return new IXR_Error( 401, __( 'Sorry, you cannot edit your profile.' ) );
2409
2410                 // holds data of the user
2411                 $user_data = array();
2412                 $user_data['ID'] = $user->ID;
2413
2414                 // only set the user details if it was given
2415                 if ( isset( $content_struct['first_name'] ) )
2416                         $user_data['first_name'] = $content_struct['first_name'];
2417
2418                 if ( isset( $content_struct['last_name'] ) )
2419                         $user_data['last_name'] = $content_struct['last_name'];
2420
2421                 if ( isset( $content_struct['url'] ) )
2422                         $user_data['user_url'] = $content_struct['url'];
2423
2424                 if ( isset( $content_struct['display_name'] ) )
2425                         $user_data['display_name'] = $content_struct['display_name'];
2426
2427                 if ( isset( $content_struct['nickname'] ) )
2428                         $user_data['nickname'] = $content_struct['nickname'];
2429
2430                 if ( isset( $content_struct['nicename'] ) )
2431                         $user_data['user_nicename'] = $content_struct['nicename'];
2432
2433                 if ( isset( $content_struct['bio'] ) )
2434                         $user_data['description'] = $content_struct['bio'];
2435
2436                 $result = wp_update_user( $user_data );
2437
2438                 if ( is_wp_error( $result ) )
2439                         return new IXR_Error( 500, $result->get_error_message() );
2440
2441                 if ( ! $result )
2442                         return new IXR_Error( 500, __( 'Sorry, the user cannot be updated.' ) );
2443
2444                 return true;
2445         }
2446
2447         /**
2448          * Retrieve page.
2449          *
2450          * @since 2.2.0
2451          *
2452          * @param array $args Method parameters. Contains:
2453          *  - blog_id (unused)
2454          *  - page_id
2455          *  - username
2456          *  - password
2457          * @return array|IXR_Error
2458          */
2459         public function wp_getPage($args) {
2460                 $this->escape($args);
2461
2462                 $page_id        = (int) $args[1];
2463                 $username       = $args[2];
2464                 $password       = $args[3];
2465
2466                 if ( !$user = $this->login($username, $password) ) {
2467                         return $this->error;
2468                 }
2469
2470                 $page = get_post($page_id);
2471                 if ( ! $page )
2472                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
2473
2474                 if ( !current_user_can( 'edit_page', $page_id ) )
2475                         return new IXR_Error( 401, __( 'Sorry, you cannot edit this page.' ) );
2476
2477                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2478                 do_action( 'xmlrpc_call', 'wp.getPage' );
2479
2480                 // If we found the page then format the data.
2481                 if ( $page->ID && ($page->post_type == 'page') ) {
2482                         return $this->_prepare_page( $page );
2483                 }
2484                 // If the page doesn't exist indicate that.
2485                 else {
2486                         return new IXR_Error( 404, __( 'Sorry, no such page.' ) );
2487                 }
2488         }
2489
2490         /**
2491          * Retrieve Pages.
2492          *
2493          * @since 2.2.0
2494          *
2495          * @param array $args Method parameters. Contains:
2496          *  - blog_id (unused)
2497          *  - username
2498          *  - password
2499          *  - num_pages
2500          * @return array|IXR_Error
2501          */
2502         public function wp_getPages($args) {
2503                 $this->escape($args);
2504
2505                 $username       = $args[1];
2506                 $password       = $args[2];
2507                 $num_pages      = isset($args[3]) ? (int) $args[3] : 10;
2508
2509                 if ( !$user = $this->login($username, $password) )
2510                         return $this->error;
2511
2512                 if ( !current_user_can( 'edit_pages' ) )
2513                         return new IXR_Error( 401, __( 'Sorry, you cannot edit pages.' ) );
2514
2515                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2516                 do_action( 'xmlrpc_call', 'wp.getPages' );
2517
2518                 $pages = get_posts( array('post_type' => 'page', 'post_status' => 'any', 'numberposts' => $num_pages) );
2519                 $num_pages = count($pages);
2520
2521                 // If we have pages, put together their info.
2522                 if ( $num_pages >= 1 ) {
2523                         $pages_struct = array();
2524
2525                         foreach ($pages as $page) {
2526                                 if ( current_user_can( 'edit_page', $page->ID ) )
2527                                         $pages_struct[] = $this->_prepare_page( $page );
2528                         }
2529
2530                         return $pages_struct;
2531                 }
2532
2533                 return array();
2534         }
2535
2536         /**
2537          * Create new page.
2538          *
2539          * @since 2.2.0
2540          *
2541          * @param array $args Method parameters. See {@link wp_xmlrpc_server::mw_newPost()}
2542          * @return int|IXR_Error
2543          */
2544         public function wp_newPage($args) {
2545                 // Items not escaped here will be escaped in newPost.
2546                 $username       = $this->escape($args[1]);
2547                 $password       = $this->escape($args[2]);
2548                 $page           = $args[3];
2549                 $publish        = $args[4];
2550
2551                 if ( !$user = $this->login($username, $password) )
2552                         return $this->error;
2553
2554                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2555                 do_action( 'xmlrpc_call', 'wp.newPage' );
2556
2557                 // Mark this as content for a page.
2558                 $args[3]["post_type"] = 'page';
2559
2560                 // Let mw_newPost do all of the heavy lifting.
2561                 return $this->mw_newPost( $args );
2562         }
2563
2564         /**
2565          * Delete page.
2566          *
2567          * @since 2.2.0
2568          *
2569          * @param array $args Method parameters.
2570          * @return bool|IXR_Error True, if success.
2571          */
2572         public function wp_deletePage($args) {
2573                 $this->escape($args);
2574
2575                 $username       = $args[1];
2576                 $password       = $args[2];
2577                 $page_id        = (int) $args[3];
2578
2579                 if ( !$user = $this->login($username, $password) )
2580                         return $this->error;
2581
2582                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2583                 do_action( 'xmlrpc_call', 'wp.deletePage' );
2584
2585                 // Get the current page based on the page_id and
2586                 // make sure it is a page and not a post.
2587                 $actual_page = get_post($page_id, ARRAY_A);
2588                 if ( !$actual_page || ($actual_page['post_type'] != 'page') )
2589                         return new IXR_Error( 404, __( 'Sorry, no such page.' ) );
2590
2591                 // Make sure the user can delete pages.
2592                 if ( !current_user_can('delete_page', $page_id) )
2593                         return new IXR_Error( 401, __( 'Sorry, you do not have the right to delete this page.' ) );
2594
2595                 // Attempt to delete the page.
2596                 $result = wp_delete_post($page_id);
2597                 if ( !$result )
2598                         return new IXR_Error( 500, __( 'Failed to delete the page.' ) );
2599
2600                 /**
2601                  * Fires after a page has been successfully deleted via XML-RPC.
2602                  *
2603                  * @since 3.4.0
2604                  *
2605                  * @param int   $page_id ID of the deleted page.
2606                  * @param array $args    An array of arguments to delete the page.
2607                  */
2608                 do_action( 'xmlrpc_call_success_wp_deletePage', $page_id, $args );
2609
2610                 return true;
2611         }
2612
2613         /**
2614          * Edit page.
2615          *
2616          * @since 2.2.0
2617          *
2618          * @param array $args Method parameters.
2619          * @return array|IXR_Error
2620          */
2621         public function wp_editPage($args) {
2622                 // Items not escaped here will be escaped in editPost.
2623                 $page_id        = (int) $this->escape($args[1]);
2624                 $username       = $this->escape($args[2]);
2625                 $password       = $this->escape($args[3]);
2626                 $content        = $args[4];
2627                 $publish        = $args[5];
2628
2629                 if ( !$user = $this->login($username, $password) )
2630                         return $this->error;
2631
2632                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2633                 do_action( 'xmlrpc_call', 'wp.editPage' );
2634
2635                 // Get the page data and make sure it is a page.
2636                 $actual_page = get_post($page_id, ARRAY_A);
2637                 if ( !$actual_page || ($actual_page['post_type'] != 'page') )
2638                         return new IXR_Error( 404, __( 'Sorry, no such page.' ) );
2639
2640                 // Make sure the user is allowed to edit pages.
2641                 if ( !current_user_can('edit_page', $page_id) )
2642                         return new IXR_Error( 401, __( 'Sorry, you do not have the right to edit this page.' ) );
2643
2644                 // Mark this as content for a page.
2645                 $content['post_type'] = 'page';
2646
2647                 // Arrange args in the way mw_editPost understands.
2648                 $args = array(
2649                         $page_id,
2650                         $username,
2651                         $password,
2652                         $content,
2653                         $publish
2654                 );
2655
2656                 // Let mw_editPost do all of the heavy lifting.
2657                 return $this->mw_editPost( $args );
2658         }
2659
2660         /**
2661          * Retrieve page list.
2662          *
2663          * @since 2.2.0
2664          *
2665          * @param array $args Method parameters.
2666          * @return array|IXR_Error
2667          */
2668         public function wp_getPageList($args) {
2669                 global $wpdb;
2670
2671                 $this->escape($args);
2672
2673                 $username                               = $args[1];
2674                 $password                               = $args[2];
2675
2676                 if ( !$user = $this->login($username, $password) )
2677                         return $this->error;
2678
2679                 if ( !current_user_can( 'edit_pages' ) )
2680                         return new IXR_Error( 401, __( 'Sorry, you cannot edit pages.' ) );
2681
2682                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2683                 do_action( 'xmlrpc_call', 'wp.getPageList' );
2684
2685                 // Get list of pages ids and titles
2686                 $page_list = $wpdb->get_results("
2687                         SELECT ID page_id,
2688                                 post_title page_title,
2689                                 post_parent page_parent_id,
2690                                 post_date_gmt,
2691                                 post_date,
2692                                 post_status
2693                         FROM {$wpdb->posts}
2694                         WHERE post_type = 'page'
2695                         ORDER BY ID
2696                 ");
2697
2698                 // The date needs to be formatted properly.
2699                 $num_pages = count($page_list);
2700                 for ( $i = 0; $i < $num_pages; $i++ ) {
2701                         $page_list[$i]->dateCreated = $this->_convert_date(  $page_list[$i]->post_date );
2702                         $page_list[$i]->date_created_gmt = $this->_convert_date_gmt( $page_list[$i]->post_date_gmt, $page_list[$i]->post_date );
2703
2704                         unset($page_list[$i]->post_date_gmt);
2705                         unset($page_list[$i]->post_date);
2706                         unset($page_list[$i]->post_status);
2707                 }
2708
2709                 return $page_list;
2710         }
2711
2712         /**
2713          * Retrieve authors list.
2714          *
2715          * @since 2.2.0
2716          *
2717          * @param array $args Method parameters.
2718          * @return array|IXR_Error
2719          */
2720         public function wp_getAuthors($args) {
2721
2722                 $this->escape($args);
2723
2724                 $username       = $args[1];
2725                 $password       = $args[2];
2726
2727                 if ( !$user = $this->login($username, $password) )
2728                         return $this->error;
2729
2730                 if ( !current_user_can('edit_posts') )
2731                         return new IXR_Error( 401, __( 'Sorry, you cannot edit posts on this site.' ) );
2732
2733                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2734                 do_action( 'xmlrpc_call', 'wp.getAuthors' );
2735
2736                 $authors = array();
2737                 foreach ( get_users( array( 'fields' => array('ID','user_login','display_name') ) ) as $user ) {
2738                         $authors[] = array(
2739                                 'user_id'       => $user->ID,
2740                                 'user_login'    => $user->user_login,
2741                                 'display_name'  => $user->display_name
2742                         );
2743                 }
2744
2745                 return $authors;
2746         }
2747
2748         /**
2749          * Get list of all tags
2750          *
2751          * @since 2.7.0
2752          *
2753          * @param array $args Method parameters.
2754          * @return array|IXR_Error
2755          */
2756         public function wp_getTags( $args ) {
2757                 $this->escape( $args );
2758
2759                 $username               = $args[1];
2760                 $password               = $args[2];
2761
2762                 if ( !$user = $this->login($username, $password) )
2763                         return $this->error;
2764
2765                 if ( !current_user_can( 'edit_posts' ) )
2766                         return new IXR_Error( 401, __( 'Sorry, you must be able to edit posts on this site in order to view tags.' ) );
2767
2768                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2769                 do_action( 'xmlrpc_call', 'wp.getKeywords' );
2770
2771                 $tags = array();
2772
2773                 if ( $all_tags = get_tags() ) {
2774                         foreach( (array) $all_tags as $tag ) {
2775                                 $struct = array();
2776                                 $struct['tag_id']                       = $tag->term_id;
2777                                 $struct['name']                         = $tag->name;
2778                                 $struct['count']                        = $tag->count;
2779                                 $struct['slug']                         = $tag->slug;
2780                                 $struct['html_url']                     = esc_html( get_tag_link( $tag->term_id ) );
2781                                 $struct['rss_url']                      = esc_html( get_tag_feed_link( $tag->term_id ) );
2782
2783                                 $tags[] = $struct;
2784                         }
2785                 }
2786
2787                 return $tags;
2788         }
2789
2790         /**
2791          * Create new category.
2792          *
2793          * @since 2.2.0
2794          *
2795          * @param array $args Method parameters.
2796          * @return int|IXR_Error Category ID.
2797          */
2798         public function wp_newCategory($args) {
2799                 $this->escape($args);
2800
2801                 $username                               = $args[1];
2802                 $password                               = $args[2];
2803                 $category                               = $args[3];
2804
2805                 if ( !$user = $this->login($username, $password) )
2806                         return $this->error;
2807
2808                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2809                 do_action( 'xmlrpc_call', 'wp.newCategory' );
2810
2811                 // Make sure the user is allowed to add a category.
2812                 if ( !current_user_can('manage_categories') )
2813                         return new IXR_Error(401, __('Sorry, you do not have the right to add a category.'));
2814
2815                 // If no slug was provided make it empty so that
2816                 // WordPress will generate one.
2817                 if ( empty($category['slug']) )
2818                         $category['slug'] = '';
2819
2820                 // If no parent_id was provided make it empty
2821                 // so that it will be a top level page (no parent).
2822                 if ( !isset($category['parent_id']) )
2823                         $category['parent_id'] = '';
2824
2825                 // If no description was provided make it empty.
2826                 if ( empty($category["description"]) )
2827                         $category["description"] = "";
2828
2829                 $new_category = array(
2830                         'cat_name'                              => $category['name'],
2831                         'category_nicename'             => $category['slug'],
2832                         'category_parent'               => $category['parent_id'],
2833                         'category_description'  => $category['description']
2834                 );
2835
2836                 $cat_id = wp_insert_category($new_category, true);
2837                 if ( is_wp_error( $cat_id ) ) {
2838                         if ( 'term_exists' == $cat_id->get_error_code() )
2839                                 return (int) $cat_id->get_error_data();
2840                         else
2841                                 return new IXR_Error(500, __('Sorry, the new category failed.'));
2842                 } elseif ( ! $cat_id ) {
2843                         return new IXR_Error(500, __('Sorry, the new category failed.'));
2844                 }
2845
2846                 /**
2847                  * Fires after a new category has been successfully created via XML-RPC.
2848                  *
2849                  * @since 3.4.0
2850                  *
2851                  * @param int   $cat_id ID of the new category.
2852                  * @param array $args   An array of new category arguments.
2853                  */
2854                 do_action( 'xmlrpc_call_success_wp_newCategory', $cat_id, $args );
2855
2856                 return $cat_id;
2857         }
2858
2859         /**
2860          * Remove category.
2861          *
2862          * @since 2.5.0
2863          *
2864          * @param array $args Method parameters.
2865          * @return bool|IXR_Error See {@link wp_delete_term()} for return info.
2866          */
2867         public function wp_deleteCategory($args) {
2868                 $this->escape($args);
2869
2870                 $username               = $args[1];
2871                 $password               = $args[2];
2872                 $category_id    = (int) $args[3];
2873
2874                 if ( !$user = $this->login($username, $password) )
2875                         return $this->error;
2876
2877                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2878                 do_action( 'xmlrpc_call', 'wp.deleteCategory' );
2879
2880                 if ( !current_user_can('manage_categories') )
2881                         return new IXR_Error( 401, __( 'Sorry, you do not have the right to delete a category.' ) );
2882
2883                 $status = wp_delete_term( $category_id, 'category' );
2884
2885                 if ( true == $status ) {
2886                         /**
2887                          * Fires after a category has been successfully deleted via XML-RPC.
2888                          *
2889                          * @since 3.4.0
2890                          *
2891                          * @param int   $category_id ID of the deleted category.
2892                          * @param array $args        An array of arguments to delete the category.
2893                          */
2894                         do_action( 'xmlrpc_call_success_wp_deleteCategory', $category_id, $args );
2895                 }
2896
2897                 return $status;
2898         }
2899
2900         /**
2901          * Retrieve category list.
2902          *
2903          * @since 2.2.0
2904          *
2905          * @param array $args Method parameters.
2906          * @return array|IXR_Error
2907          */
2908         public function wp_suggestCategories($args) {
2909                 $this->escape($args);
2910
2911                 $username                               = $args[1];
2912                 $password                               = $args[2];
2913                 $category                               = $args[3];
2914                 $max_results                    = (int) $args[4];
2915
2916                 if ( !$user = $this->login($username, $password) )
2917                         return $this->error;
2918
2919                 if ( !current_user_can( 'edit_posts' ) )
2920                         return new IXR_Error( 401, __( 'Sorry, you must be able to edit posts to this site in order to view categories.' ) );
2921
2922                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2923                 do_action( 'xmlrpc_call', 'wp.suggestCategories' );
2924
2925                 $category_suggestions = array();
2926                 $args = array('get' => 'all', 'number' => $max_results, 'name__like' => $category);
2927                 foreach ( (array) get_categories($args) as $cat ) {
2928                         $category_suggestions[] = array(
2929                                 'category_id'   => $cat->term_id,
2930                                 'category_name' => $cat->name
2931                         );
2932                 }
2933
2934                 return $category_suggestions;
2935         }
2936
2937         /**
2938          * Retrieve comment.
2939          *
2940          * @since 2.7.0
2941          *
2942          * @param array $args Method parameters.
2943          * @return array|IXR_Error
2944          */
2945         public function wp_getComment($args) {
2946                 $this->escape($args);
2947
2948                 $username       = $args[1];
2949                 $password       = $args[2];
2950                 $comment_id     = (int) $args[3];
2951
2952                 if ( !$user = $this->login($username, $password) )
2953                         return $this->error;
2954
2955                 if ( !current_user_can( 'moderate_comments' ) )
2956                         return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );
2957
2958                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2959                 do_action( 'xmlrpc_call', 'wp.getComment' );
2960
2961                 if ( ! $comment = get_comment($comment_id) )
2962                         return new IXR_Error( 404, __( 'Invalid comment ID.' ) );
2963
2964                 return $this->_prepare_comment( $comment );
2965         }
2966
2967         /**
2968          * Retrieve comments.
2969          *
2970          * Besides the common blog_id (unused), username, and password arguments, it takes a filter
2971          * array as last argument.
2972          *
2973          * Accepted 'filter' keys are 'status', 'post_id', 'offset', and 'number'.
2974          *
2975          * The defaults are as follows:
2976          * - 'status' - Default is ''. Filter by status (e.g., 'approve', 'hold')
2977          * - 'post_id' - Default is ''. The post where the comment is posted. Empty string shows all comments.
2978          * - 'number' - Default is 10. Total number of media items to retrieve.
2979          * - 'offset' - Default is 0. See {@link WP_Query::query()} for more.
2980          *
2981          * @since 2.7.0
2982          *
2983          * @param array $args Method parameters.
2984          * @return array|IXR_Error Contains a collection of comments. See {@link wp_xmlrpc_server::wp_getComment()} for a description of each item contents
2985          */
2986         public function wp_getComments($args) {
2987                 $this->escape($args);
2988
2989                 $username       = $args[1];
2990                 $password       = $args[2];
2991                 $struct         = isset( $args[3] ) ? $args[3] : array();
2992
2993                 if ( !$user = $this->login($username, $password) )
2994                         return $this->error;
2995
2996                 if ( !current_user_can( 'moderate_comments' ) )
2997                         return new IXR_Error( 401, __( 'Sorry, you cannot edit comments.' ) );
2998
2999                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3000                 do_action( 'xmlrpc_call', 'wp.getComments' );
3001
3002                 if ( isset($struct['status']) )
3003                         $status = $struct['status'];
3004                 else
3005                         $status = '';
3006
3007                 $post_id = '';
3008                 if ( isset($struct['post_id']) )
3009                         $post_id = absint($struct['post_id']);
3010
3011                 $offset = 0;
3012                 if ( isset($struct['offset']) )
3013                         $offset = absint($struct['offset']);
3014
3015                 $number = 10;
3016                 if ( isset($struct['number']) )
3017                         $number = absint($struct['number']);
3018
3019                 $comments = get_comments( array('status' => $status, 'post_id' => $post_id, 'offset' => $offset, 'number' => $number ) );
3020
3021                 $comments_struct = array();
3022
3023                 foreach ( $comments as $comment ) {
3024                         $comments_struct[] = $this->_prepare_comment( $comment );
3025                 }
3026
3027                 return $comments_struct;
3028         }
3029
3030         /**
3031          * Delete a comment.
3032          *
3033          * By default, the comment will be moved to the trash instead of deleted.
3034          * See {@link wp_delete_comment()} for more information on
3035          * this behavior.
3036          *
3037          * @since 2.7.0
3038          *
3039          * @param array $args Method parameters. Contains:
3040          *  - blog_id (unused)
3041          *  - username
3042          *  - password
3043          *  - comment_id
3044          * @return bool|IXR_Error {@link wp_delete_comment()}
3045          */
3046         public function wp_deleteComment($args) {
3047                 $this->escape($args);
3048
3049                 $username       = $args[1];
3050                 $password       = $args[2];
3051                 $comment_ID     = (int) $args[3];
3052
3053                 if ( !$user = $this->login($username, $password) )
3054                         return $this->error;
3055
3056                 if ( !current_user_can( 'moderate_comments' ) )
3057                         return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );
3058
3059                 if ( ! get_comment($comment_ID) )
3060                         return new IXR_Error( 404, __( 'Invalid comment ID.' ) );
3061
3062                 if ( !current_user_can( 'edit_comment', $comment_ID ) )
3063                         return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );
3064
3065                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3066                 do_action( 'xmlrpc_call', 'wp.deleteComment' );
3067
3068                 $status = wp_delete_comment( $comment_ID );
3069
3070                 if ( true == $status ) {
3071                         /**
3072                          * Fires after a comment has been successfully deleted via XML-RPC.
3073                          *
3074                          * @since 3.4.0
3075                          *
3076                          * @param int   $comment_ID ID of the deleted comment.
3077                          * @param array $args       An array of arguments to delete the comment.
3078                          */
3079                         do_action( 'xmlrpc_call_success_wp_deleteComment', $comment_ID, $args );
3080                 }
3081
3082                 return $status;
3083         }
3084
3085         /**
3086          * Edit comment.
3087          *
3088          * Besides the common blog_id (unused), username, and password arguments, it takes a
3089          * comment_id integer and a content_struct array as last argument.
3090          *
3091          * The allowed keys in the content_struct array are:
3092          *  - 'author'
3093          *  - 'author_url'
3094          *  - 'author_email'
3095          *  - 'content'
3096          *  - 'date_created_gmt'
3097          *  - 'status'. Common statuses are 'approve', 'hold', 'spam'. See {@link get_comment_statuses()} for more details
3098          *
3099          * @since 2.7.0
3100          *
3101          * @param array $args. Contains:
3102          *  - blog_id (unused)
3103          *  - username
3104          *  - password
3105          *  - comment_id
3106          *  - content_struct
3107          * @return bool|IXR_Error True, on success.
3108          */
3109         public function wp_editComment($args) {
3110                 $this->escape($args);
3111
3112                 $username       = $args[1];
3113                 $password       = $args[2];
3114                 $comment_ID     = (int) $args[3];
3115                 $content_struct = $args[4];
3116
3117                 if ( !$user = $this->login($username, $password) )
3118                         return $this->error;
3119
3120                 if ( !current_user_can( 'moderate_comments' ) )
3121                         return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );
3122
3123                 if ( ! get_comment($comment_ID) )
3124                         return new IXR_Error( 404, __( 'Invalid comment ID.' ) );
3125
3126                 if ( !current_user_can( 'edit_comment', $comment_ID ) )
3127                         return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );
3128
3129                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3130                 do_action( 'xmlrpc_call', 'wp.editComment' );
3131
3132                 if ( isset($content_struct['status']) ) {
3133                         $statuses = get_comment_statuses();
3134                         $statuses = array_keys($statuses);
3135
3136                         if ( ! in_array($content_struct['status'], $statuses) )
3137                                 return new IXR_Error( 401, __( 'Invalid comment status.' ) );
3138                         $comment_approved = $content_struct['status'];
3139                 }
3140
3141                 // Do some timestamp voodoo
3142                 if ( !empty( $content_struct['date_created_gmt'] ) ) {
3143                         // We know this is supposed to be GMT, so we're going to slap that Z on there by force
3144                         $dateCreated = rtrim( $content_struct['date_created_gmt']->getIso(), 'Z' ) . 'Z';
3145                         $comment_date = get_date_from_gmt(iso8601_to_datetime($dateCreated));
3146                         $comment_date_gmt = iso8601_to_datetime($dateCreated, 'GMT');
3147                 }
3148
3149                 if ( isset($content_struct['content']) )
3150                         $comment_content = $content_struct['content'];
3151
3152                 if ( isset($content_struct['author']) )
3153                         $comment_author = $content_struct['author'];
3154
3155                 if ( isset($content_struct['author_url']) )
3156                         $comment_author_url = $content_struct['author_url'];
3157
3158                 if ( isset($content_struct['author_email']) )
3159                         $comment_author_email = $content_struct['author_email'];
3160
3161                 // We've got all the data -- post it:
3162                 $comment = compact('comment_ID', 'comment_content', 'comment_approved', 'comment_date', 'comment_date_gmt', 'comment_author', 'comment_author_email', 'comment_author_url');
3163
3164                 $result = wp_update_comment($comment);
3165                 if ( is_wp_error( $result ) )
3166                         return new IXR_Error(500, $result->get_error_message());
3167
3168                 if ( !$result )
3169                         return new IXR_Error(500, __('Sorry, the comment could not be edited. Something wrong happened.'));
3170
3171                 /**
3172                  * Fires after a comment has been successfully updated via XML-RPC.
3173                  *
3174                  * @since 3.4.0
3175                  *
3176                  * @param int   $comment_ID ID of the updated comment.
3177                  * @param array $args       An array of arguments to update the comment.
3178                  */
3179                 do_action( 'xmlrpc_call_success_wp_editComment', $comment_ID, $args );
3180
3181                 return true;
3182         }
3183
3184         /**
3185          * Create new comment.
3186          *
3187          * @since 2.7.0
3188          *
3189          * @param array $args Method parameters.
3190          * @return int|IXR_Error {@link wp_new_comment()}
3191          */
3192         public function wp_newComment($args) {
3193                 $this->escape($args);
3194
3195                 $username       = $args[1];
3196                 $password       = $args[2];
3197                 $post           = $args[3];
3198                 $content_struct = $args[4];
3199
3200                 /**
3201                  * Filter whether to allow anonymous comments over XML-RPC.
3202                  *
3203                  * @since 2.7.0
3204                  *
3205                  * @param bool $allow Whether to allow anonymous commenting via XML-RPC.
3206                  *                    Default false.
3207                  */
3208                 $allow_anon = apply_filters( 'xmlrpc_allow_anonymous_comments', false );
3209
3210                 $user = $this->login($username, $password);
3211
3212                 if ( !$user ) {
3213                         $logged_in = false;
3214                         if ( $allow_anon && get_option('comment_registration') )
3215                                 return new IXR_Error( 403, __( 'You must be registered to comment' ) );
3216                         else if ( !$allow_anon )
3217                                 return $this->error;
3218                 } else {
3219                         $logged_in = true;
3220                 }
3221
3222                 if ( is_numeric($post) )
3223                         $post_id = absint($post);
3224                 else
3225                         $post_id = url_to_postid($post);
3226
3227                 if ( ! $post_id )
3228                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
3229
3230                 if ( ! get_post($post_id) )
3231                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
3232
3233                 $comment = array();
3234                 $comment['comment_post_ID'] = $post_id;
3235
3236                 if ( $logged_in ) {
3237                         $comment['comment_author'] = $this->escape( $user->display_name );
3238                         $comment['comment_author_email'] = $this->escape( $user->user_email );
3239                         $comment['comment_author_url'] = $this->escape( $user->user_url );
3240                         $comment['user_ID'] = $user->ID;
3241                 } else {
3242                         $comment['comment_author'] = '';
3243                         if ( isset($content_struct['author']) )
3244                                 $comment['comment_author'] = $content_struct['author'];
3245
3246                         $comment['comment_author_email'] = '';
3247                         if ( isset($content_struct['author_email']) )
3248                                 $comment['comment_author_email'] = $content_struct['author_email'];
3249
3250                         $comment['comment_author_url'] = '';
3251                         if ( isset($content_struct['author_url']) )
3252                                 $comment['comment_author_url'] = $content_struct['author_url'];
3253
3254                         $comment['user_ID'] = 0;
3255
3256                         if ( get_option('require_name_email') ) {
3257                                 if ( 6 > strlen($comment['comment_author_email']) || '' == $comment['comment_author'] )
3258                                         return new IXR_Error( 403, __( 'Comment author name and email are required' ) );
3259                                 elseif ( !is_email($comment['comment_author_email']) )
3260                                         return new IXR_Error( 403, __( 'A valid email address is required' ) );
3261                         }
3262                 }
3263
3264                 $comment['comment_parent'] = isset($content_struct['comment_parent']) ? absint($content_struct['comment_parent']) : 0;
3265
3266                 $comment['comment_content'] =  isset($content_struct['content']) ? $content_struct['content'] : null;
3267
3268                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3269                 do_action( 'xmlrpc_call', 'wp.newComment' );
3270
3271                 $comment_ID = wp_new_comment( $comment );
3272
3273                 /**
3274                  * Fires after a new comment has been successfully created via XML-RPC.
3275                  *
3276                  * @since 3.4.0
3277                  *
3278                  * @param int   $comment_ID ID of the new comment.
3279                  * @param array $args       An array of new comment arguments.
3280                  */
3281                 do_action( 'xmlrpc_call_success_wp_newComment', $comment_ID, $args );
3282
3283                 return $comment_ID;
3284         }
3285
3286         /**
3287          * Retrieve all of the comment status.
3288          *
3289          * @since 2.7.0
3290          *
3291          * @param array $args Method parameters.
3292          * @return array|IXR_Error
3293          */
3294         public function wp_getCommentStatusList($args) {
3295                 $this->escape( $args );
3296
3297                 $username       = $args[1];
3298                 $password       = $args[2];
3299
3300                 if ( !$user = $this->login($username, $password) )
3301                         return $this->error;
3302
3303                 if ( !current_user_can( 'moderate_comments' ) )
3304                         return new IXR_Error( 403, __( 'You are not allowed access to details about this site.' ) );
3305
3306                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3307                 do_action( 'xmlrpc_call', 'wp.getCommentStatusList' );
3308
3309                 return get_comment_statuses();
3310         }
3311
3312         /**
3313          * Retrieve comment count.
3314          *
3315          * @since 2.5.0
3316          *
3317          * @param array $args Method parameters.
3318          * @return array|IXR_Error
3319          */
3320         public function wp_getCommentCount( $args ) {
3321                 $this->escape($args);
3322
3323                 $username       = $args[1];
3324                 $password       = $args[2];
3325                 $post_id        = (int) $args[3];
3326
3327                 if ( !$user = $this->login($username, $password) )
3328                         return $this->error;
3329
3330                 if ( !current_user_can( 'edit_posts' ) )
3331                         return new IXR_Error( 403, __( 'You are not allowed access to details about comments.' ) );
3332
3333                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3334                 do_action( 'xmlrpc_call', 'wp.getCommentCount' );
3335
3336                 $count = wp_count_comments( $post_id );
3337                 return array(
3338                         'approved' => $count->approved,
3339                         'awaiting_moderation' => $count->moderated,
3340                         'spam' => $count->spam,
3341                         'total_comments' => $count->total_comments
3342                 );
3343         }
3344
3345         /**
3346          * Retrieve post statuses.
3347          *
3348          * @since 2.5.0
3349          *
3350          * @param array $args Method parameters.
3351          * @return array|IXR_Error
3352          */
3353         public function wp_getPostStatusList( $args ) {
3354                 $this->escape( $args );
3355
3356                 $username       = $args[1];
3357                 $password       = $args[2];
3358
3359                 if ( !$user = $this->login($username, $password) )
3360                         return $this->error;
3361
3362                 if ( !current_user_can( 'edit_posts' ) )
3363                         return new IXR_Error( 403, __( 'You are not allowed access to details about this site.' ) );
3364
3365                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3366                 do_action( 'xmlrpc_call', 'wp.getPostStatusList' );
3367
3368                 return get_post_statuses();
3369         }
3370
3371         /**
3372          * Retrieve page statuses.
3373          *
3374          * @since 2.5.0
3375          *
3376          * @param array $args Method parameters.
3377          * @return array|IXR_Error
3378          */
3379         public function wp_getPageStatusList( $args ) {
3380                 $this->escape( $args );
3381
3382                 $username       = $args[1];
3383                 $password       = $args[2];
3384
3385                 if ( !$user = $this->login($username, $password) )
3386                         return $this->error;
3387
3388                 if ( !current_user_can( 'edit_pages' ) )
3389                         return new IXR_Error( 403, __( 'You are not allowed access to details about this site.' ) );
3390
3391                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3392                 do_action( 'xmlrpc_call', 'wp.getPageStatusList' );
3393
3394                 return get_page_statuses();
3395         }
3396
3397         /**
3398          * Retrieve page templates.
3399          *
3400          * @since 2.6.0
3401          *
3402          * @param array $args Method parameters.
3403          * @return array|IXR_Error
3404          */
3405         public function wp_getPageTemplates( $args ) {
3406                 $this->escape( $args );
3407
3408                 $username       = $args[1];
3409                 $password       = $args[2];
3410
3411                 if ( !$user = $this->login($username, $password) )
3412                         return $this->error;
3413
3414                 if ( !current_user_can( 'edit_pages' ) )
3415                         return new IXR_Error( 403, __( 'You are not allowed access to details about this site.' ) );
3416
3417                 $templates = get_page_templates();
3418                 $templates['Default'] = 'default';
3419
3420                 return $templates;
3421         }
3422
3423         /**
3424          * Retrieve blog options.
3425          *
3426          * @since 2.6.0
3427          *
3428          * @param array $args Method parameters.
3429          * @return array|IXR_Error
3430          */
3431         public function wp_getOptions( $args ) {
3432                 $this->escape( $args );
3433
3434                 $username       = $args[1];
3435                 $password       = $args[2];
3436                 $options        = isset( $args[3] ) ? (array) $args[3] : array();
3437
3438                 if ( !$user = $this->login($username, $password) )
3439                         return $this->error;
3440
3441                 // If no specific options where asked for, return all of them
3442                 if ( count( $options ) == 0 )
3443                         $options = array_keys($this->blog_options);
3444
3445                 return $this->_getOptions($options);
3446         }
3447
3448         /**
3449          * Retrieve blog options value from list.
3450          *
3451          * @since 2.6.0
3452          *
3453          * @param array $options Options to retrieve.
3454          * @return array
3455          */
3456         public function _getOptions($options) {
3457                 $data = array();
3458                 $can_manage = current_user_can( 'manage_options' );
3459                 foreach ( $options as $option ) {
3460                         if ( array_key_exists( $option, $this->blog_options ) ) {
3461                                 $data[$option] = $this->blog_options[$option];
3462                                 //Is the value static or dynamic?
3463                                 if ( isset( $data[$option]['option'] ) ) {
3464                                         $data[$option]['value'] = get_option( $data[$option]['option'] );
3465                                         unset($data[$option]['option']);
3466                                 }
3467
3468                                 if ( ! $can_manage )
3469                                         $data[$option]['readonly'] = true;
3470                         }
3471                 }
3472
3473                 return $data;
3474         }
3475
3476         /**
3477          * Update blog options.
3478          *
3479          * @since 2.6.0
3480          *
3481          * @param array $args Method parameters.
3482          * @return array|IXR_Error
3483          */
3484         public function wp_setOptions( $args ) {
3485                 $this->escape( $args );
3486
3487                 $username       = $args[1];
3488                 $password       = $args[2];
3489                 $options        = (array) $args[3];
3490
3491                 if ( !$user = $this->login($username, $password) )
3492                         return $this->error;
3493
3494                 if ( !current_user_can( 'manage_options' ) )
3495                         return new IXR_Error( 403, __( 'You are not allowed to update options.' ) );
3496
3497                 $option_names = array();
3498                 foreach ( $options as $o_name => $o_value ) {
3499                         $option_names[] = $o_name;
3500                         if ( !array_key_exists( $o_name, $this->blog_options ) )
3501                                 continue;
3502
3503                         if ( $this->blog_options[$o_name]['readonly'] == true )
3504                                 continue;
3505
3506                         update_option( $this->blog_options[$o_name]['option'], wp_unslash( $o_value ) );
3507                 }
3508
3509                 //Now return the updated values
3510                 return $this->_getOptions($option_names);
3511         }
3512
3513         /**
3514          * Retrieve a media item by ID
3515          *
3516          * @since 3.1.0
3517          *
3518          * @param array $args Method parameters. Contains:
3519          *  - blog_id (unused)
3520          *  - username
3521          *  - password
3522          *  - attachment_id
3523          * @return array|IXR_Error Associative array contains:
3524          *  - 'date_created_gmt'
3525          *  - 'parent'
3526          *  - 'link'
3527          *  - 'thumbnail'
3528          *  - 'title'
3529          *  - 'caption'
3530          *  - 'description'
3531          *  - 'metadata'
3532          */
3533         public function wp_getMediaItem($args) {
3534                 $this->escape($args);
3535
3536                 $username               = $args[1];
3537                 $password               = $args[2];
3538                 $attachment_id  = (int) $args[3];
3539
3540                 if ( !$user = $this->login($username, $password) )
3541                         return $this->error;
3542
3543                 if ( !current_user_can( 'upload_files' ) )
3544                         return new IXR_Error( 403, __( 'You do not have permission to upload files.' ) );
3545
3546                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3547                 do_action( 'xmlrpc_call', 'wp.getMediaItem' );
3548
3549                 if ( ! $attachment = get_post($attachment_id) )
3550                         return new IXR_Error( 404, __( 'Invalid attachment ID.' ) );
3551
3552                 return $this->_prepare_media_item( $attachment );
3553         }
3554
3555         /**
3556          * Retrieves a collection of media library items (or attachments)
3557          *
3558          * Besides the common blog_id (unused), username, and password arguments, it takes a filter
3559          * array as last argument.
3560          *
3561          * Accepted 'filter' keys are 'parent_id', 'mime_type', 'offset', and 'number'.
3562          *
3563          * The defaults are as follows:
3564          * - 'number' - Default is 5. Total number of media items to retrieve.
3565          * - 'offset' - Default is 0. See {@link WP_Query::query()} for more.
3566          * - 'parent_id' - Default is ''. The post where the media item is attached. Empty string shows all media items. 0 shows unattached media items.
3567          * - 'mime_type' - Default is ''. Filter by mime type (e.g., 'image/jpeg', 'application/pdf')
3568          *
3569          * @since 3.1.0
3570          *
3571          * @param array $args Method parameters. Contains:
3572          *  - blog_id (unused)
3573          *  - username
3574          *  - password
3575          *  - filter
3576          * @return array|IXR_Error Contains a collection of media items. See {@link wp_xmlrpc_server::wp_getMediaItem()} for a description of each item contents
3577          */
3578         public function wp_getMediaLibrary($args) {
3579                 $this->escape($args);
3580
3581                 $username       = $args[1];
3582                 $password       = $args[2];
3583                 $struct         = isset( $args[3] ) ? $args[3] : array() ;
3584
3585                 if ( !$user = $this->login($username, $password) )
3586                         return $this->error;
3587
3588                 if ( !current_user_can( 'upload_files' ) )
3589                         return new IXR_Error( 401, __( 'You do not have permission to upload files.' ) );
3590
3591                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3592                 do_action( 'xmlrpc_call', 'wp.getMediaLibrary' );
3593
3594                 $parent_id = ( isset($struct['parent_id']) ) ? absint($struct['parent_id']) : '' ;
3595                 $mime_type = ( isset($struct['mime_type']) ) ? $struct['mime_type'] : '' ;
3596                 $offset = ( isset($struct['offset']) ) ? absint($struct['offset']) : 0 ;
3597                 $number = ( isset($struct['number']) ) ? absint($struct['number']) : -1 ;
3598
3599                 $attachments = get_posts( array('post_type' => 'attachment', 'post_parent' => $parent_id, 'offset' => $offset, 'numberposts' => $number, 'post_mime_type' => $mime_type ) );
3600
3601                 $attachments_struct = array();
3602
3603                 foreach ($attachments as $attachment )
3604                         $attachments_struct[] = $this->_prepare_media_item( $attachment );
3605
3606                 return $attachments_struct;
3607         }
3608
3609         /**
3610           * Retrieves a list of post formats used by the site
3611           *
3612           * @since 3.1.0
3613           *
3614           * @param array $args Method parameters. Contains:
3615           *  - blog_id (unused)
3616           *  - username
3617           *  - password
3618           * @return array|IXR_Error
3619           */
3620         public function wp_getPostFormats( $args ) {
3621                 $this->escape( $args );
3622
3623                 $username = $args[1];
3624                 $password = $args[2];
3625
3626                 if ( !$user = $this->login( $username, $password ) )
3627                         return $this->error;
3628
3629                 if ( !current_user_can( 'edit_posts' ) )
3630                         return new IXR_Error( 403, __( 'You are not allowed access to details about this site.' ) );
3631
3632                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3633                 do_action( 'xmlrpc_call', 'wp.getPostFormats' );
3634
3635                 $formats = get_post_format_strings();
3636
3637                 # find out if they want a list of currently supports formats
3638                 if ( isset( $args[3] ) && is_array( $args[3] ) ) {
3639                         if ( $args[3]['show-supported'] ) {
3640                                 if ( current_theme_supports( 'post-formats' ) ) {
3641                                         $supported = get_theme_support( 'post-formats' );
3642
3643                                         $data = array();
3644                                         $data['all'] = $formats;
3645                                         $data['supported'] = $supported[0];
3646
3647                                         $formats = $data;
3648                                 }
3649                         }
3650                 }
3651
3652                 return $formats;
3653         }
3654
3655         /**
3656          * Retrieves a post type
3657          *
3658          * @since 3.4.0
3659          *
3660          * @uses get_post_type_object()
3661          * @param array $args Method parameters. Contains:
3662          *  - int     $blog_id (unused)
3663          *  - string  $username
3664          *  - string  $password
3665          *  - string  $post_type_name
3666          *  - array   $fields
3667          * @return array|IXR_Error Array contains:
3668          *  - 'labels'
3669          *  - 'description'
3670          *  - 'capability_type'
3671          *  - 'cap'
3672          *  - 'map_meta_cap'
3673          *  - 'hierarchical'
3674          *  - 'menu_position'
3675          *  - 'taxonomies'
3676          *  - 'supports'
3677          */
3678         public function wp_getPostType( $args ) {
3679                 if ( ! $this->minimum_args( $args, 4 ) )
3680                         return $this->error;
3681
3682                 $this->escape( $args );
3683
3684                 $username       = $args[1];
3685                 $password       = $args[2];
3686                 $post_type_name = $args[3];
3687
3688                 if ( isset( $args[4] ) ) {
3689                         $fields = $args[4];
3690                 } else {
3691                         /**
3692                          * Filter the default query fields used by the given XML-RPC method.
3693                          *
3694                          * @since 3.4.0
3695                          *
3696                          * @param array  $fields An array of post type query fields for the given method.
3697                          * @param string $method The method name.
3698                          */
3699                         $fields = apply_filters( 'xmlrpc_default_posttype_fields', array( 'labels', 'cap', 'taxonomies' ), 'wp.getPostType' );
3700                 }
3701
3702                 if ( !$user = $this->login( $username, $password ) )
3703                         return $this->error;
3704
3705                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3706                 do_action( 'xmlrpc_call', 'wp.getPostType' );
3707
3708                 if( ! post_type_exists( $post_type_name ) )
3709                         return new IXR_Error( 403, __( 'Invalid post type' ) );
3710
3711                 $post_type = get_post_type_object( $post_type_name );
3712
3713                 if( ! current_user_can( $post_type->cap->edit_posts ) )
3714                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit this post type.' ) );
3715
3716                 return $this->_prepare_post_type( $post_type, $fields );
3717         }
3718
3719         /**
3720          * Retrieves a post types
3721          *
3722          * @since 3.4.0
3723          *
3724          * @uses get_post_types()
3725          * @param array $args Method parameters. Contains:
3726          *  - int     $blog_id (unused)
3727          *  - string  $username
3728          *  - string  $password
3729          *  - array   $filter
3730          *  - array   $fields
3731          * @return array|IXR_Error
3732          */
3733         public function wp_getPostTypes( $args ) {
3734                 if ( ! $this->minimum_args( $args, 3 ) )
3735                         return $this->error;
3736
3737                 $this->escape( $args );
3738
3739                 $username           = $args[1];
3740                 $password           = $args[2];
3741                 $filter             = isset( $args[3] ) ? $args[3] : array( 'public' => true );
3742
3743                 if ( isset( $args[4] ) ) {
3744                         $fields = $args[4];
3745                 } else {
3746                         /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3747                         $fields = apply_filters( 'xmlrpc_default_posttype_fields', array( 'labels', 'cap', 'taxonomies' ), 'wp.getPostTypes' );
3748                 }
3749
3750                 if ( ! $user = $this->login( $username, $password ) )
3751                         return $this->error;
3752
3753                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3754                 do_action( 'xmlrpc_call', 'wp.getPostTypes' );
3755
3756                 $post_types = get_post_types( $filter, 'objects' );
3757
3758                 $struct = array();
3759
3760                 foreach( $post_types as $post_type ) {
3761                         if( ! current_user_can( $post_type->cap->edit_posts ) )
3762                                 continue;
3763
3764                         $struct[$post_type->name] = $this->_prepare_post_type( $post_type, $fields );
3765                 }
3766
3767                 return $struct;
3768         }
3769
3770         /**
3771          * Retrieve revisions for a specific post.
3772          *
3773          * @since 3.5.0
3774          *
3775          * The optional $fields parameter specifies what fields will be included
3776          * in the response array.
3777          *
3778          * @uses wp_get_post_revisions()
3779          * @see wp_getPost() for more on $fields
3780          *
3781          * @param array $args Method parameters. Contains:
3782          *  - int     $blog_id (unused)
3783          *  - string  $username
3784          *  - string  $password
3785          *  - int     $post_id
3786          *  - array   $fields
3787          * @return array|IXR_Error contains a collection of posts.
3788          */
3789         public function wp_getRevisions( $args ) {
3790                 if ( ! $this->minimum_args( $args, 4 ) )
3791                         return $this->error;
3792
3793                 $this->escape( $args );
3794
3795                 $username   = $args[1];
3796                 $password   = $args[2];
3797                 $post_id    = (int) $args[3];
3798
3799                 if ( isset( $args[4] ) ) {
3800                         $fields = $args[4];
3801                 } else {
3802                         /**
3803                          * Filter the default revision query fields used by the given XML-RPC method.
3804                          *
3805                          * @since 3.5.0
3806                          *
3807                          * @param array  $field  An array of revision query fields.
3808                          * @param string $method The method name.
3809                          */
3810                         $fields = apply_filters( 'xmlrpc_default_revision_fields', array( 'post_date', 'post_date_gmt' ), 'wp.getRevisions' );
3811                 }
3812
3813                 if ( ! $user = $this->login( $username, $password ) )
3814                         return $this->error;
3815
3816                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3817                 do_action( 'xmlrpc_call', 'wp.getRevisions' );
3818
3819                 if ( ! $post = get_post( $post_id ) )
3820                         return new IXR_Error( 404, __( 'Invalid post ID' ) );
3821
3822                 if ( ! current_user_can( 'edit_post', $post_id ) )
3823                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit posts.' ) );
3824
3825                 // Check if revisions are enabled.
3826                 if ( ! wp_revisions_enabled( $post ) )
3827                         return new IXR_Error( 401, __( 'Sorry, revisions are disabled.' ) );
3828
3829                 $revisions = wp_get_post_revisions( $post_id );
3830
3831                 if ( ! $revisions )
3832                         return array();
3833
3834                 $struct = array();
3835
3836                 foreach ( $revisions as $revision ) {
3837                         if ( ! current_user_can( 'read_post', $revision->ID ) )
3838                                 continue;
3839
3840                         // Skip autosaves
3841                         if ( wp_is_post_autosave( $revision ) )
3842                                 continue;
3843
3844                         $struct[] = $this->_prepare_post( get_object_vars( $revision ), $fields );
3845                 }
3846
3847                 return $struct;
3848         }
3849
3850         /**
3851          * Restore a post revision
3852          *
3853          * @since 3.5.0
3854          *
3855          * @uses wp_restore_post_revision()
3856          *
3857          * @param array $args Method parameters. Contains:
3858          *  - int     $blog_id (unused)
3859          *  - string  $username
3860          *  - string  $password
3861          *  - int     $post_id
3862          * @return bool|IXR_Error false if there was an error restoring, true if success.
3863          */
3864         public function wp_restoreRevision( $args ) {
3865                 if ( ! $this->minimum_args( $args, 3 ) )
3866                         return $this->error;
3867
3868                 $this->escape( $args );
3869
3870                 $username    = $args[1];
3871                 $password    = $args[2];
3872                 $revision_id = (int) $args[3];
3873
3874                 if ( ! $user = $this->login( $username, $password ) )
3875                         return $this->error;
3876
3877                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3878                 do_action( 'xmlrpc_call', 'wp.restoreRevision' );
3879
3880                 if ( ! $revision = wp_get_post_revision( $revision_id ) )
3881                         return new IXR_Error( 404, __( 'Invalid post ID' ) );
3882
3883                 if ( wp_is_post_autosave( $revision ) )
3884                         return new IXR_Error( 404, __( 'Invalid post ID' ) );
3885
3886                 if ( ! $post = get_post( $revision->post_parent ) )
3887                         return new IXR_Error( 404, __( 'Invalid post ID' ) );
3888
3889                 if ( ! current_user_can( 'edit_post', $revision->post_parent ) )
3890                         return new IXR_Error( 401, __( 'Sorry, you cannot edit this post.' ) );
3891
3892                 // Check if revisions are disabled.
3893                 if ( ! wp_revisions_enabled( $post ) )
3894                         return new IXR_Error( 401, __( 'Sorry, revisions are disabled.' ) );
3895
3896                 $post = wp_restore_post_revision( $revision_id );
3897
3898                 return (bool) $post;
3899         }
3900
3901         /* Blogger API functions.
3902          * specs on http://plant.blogger.com/api and http://groups.yahoo.com/group/bloggerDev/
3903          */
3904
3905         /**
3906          * Retrieve blogs that user owns.
3907          *
3908          * Will make more sense once we support multiple blogs.
3909          *
3910          * @since 1.5.0
3911          *
3912          * @param array $args Method parameters.
3913          * @return array|IXR_Error
3914          */
3915         public function blogger_getUsersBlogs($args) {
3916                 if ( is_multisite() )
3917                         return $this->_multisite_getUsersBlogs($args);
3918
3919                 $this->escape($args);
3920
3921                 $username = $args[1];
3922                 $password  = $args[2];
3923
3924                 if ( !$user = $this->login($username, $password) )
3925                         return $this->error;
3926
3927                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3928                 do_action( 'xmlrpc_call', 'blogger.getUsersBlogs' );
3929
3930                 $is_admin = current_user_can('manage_options');
3931
3932                 $struct = array(
3933                         'isAdmin'  => $is_admin,
3934                         'url'      => get_option('home') . '/',
3935                         'blogid'   => '1',
3936                         'blogName' => get_option('blogname'),
3937                         'xmlrpc'   => site_url( 'xmlrpc.php', 'rpc' ),
3938                 );
3939
3940                 return array($struct);
3941         }
3942
3943         /**
3944          * Private function for retrieving a users blogs for multisite setups
3945          *
3946          * @access protected
3947          *
3948          * @return array|IXR_Error
3949          */
3950         protected function _multisite_getUsersBlogs($args) {
3951                 $current_blog = get_blog_details();
3952
3953                 $domain = $current_blog->domain;
3954                 $path = $current_blog->path . 'xmlrpc.php';
3955
3956                 $rpc = new IXR_Client( set_url_scheme( "http://{$domain}{$path}" ) );
3957                 $rpc->query('wp.getUsersBlogs', $args[1], $args[2]);
3958                 $blogs = $rpc->getResponse();
3959
3960                 if ( isset($blogs['faultCode']) )
3961                         return new IXR_Error($blogs['faultCode'], $blogs['faultString']);
3962
3963                 if ( $_SERVER['HTTP_HOST'] == $domain && $_SERVER['REQUEST_URI'] == $path ) {
3964                         return $blogs;
3965                 } else {
3966                         foreach ( (array) $blogs as $blog ) {
3967                                 if ( strpos($blog['url'], $_SERVER['HTTP_HOST']) )
3968                                         return array($blog);
3969                         }
3970                         return array();
3971                 }
3972         }
3973
3974         /**
3975          * Retrieve user's data.
3976          *
3977          * Gives your client some info about you, so you don't have to.
3978          *
3979          * @since 1.5.0
3980          *
3981          * @param array $args Method parameters.
3982          * @return array|IXR_Error
3983          */
3984         public function blogger_getUserInfo($args) {
3985
3986                 $this->escape($args);
3987
3988                 $username = $args[1];
3989                 $password  = $args[2];
3990
3991                 if ( !$user = $this->login($username, $password) )
3992                         return $this->error;
3993
3994                 if ( !current_user_can( 'edit_posts' ) )
3995                         return new IXR_Error( 401, __( 'Sorry, you do not have access to user data on this site.' ) );
3996
3997                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3998                 do_action( 'xmlrpc_call', 'blogger.getUserInfo' );
3999
4000                 $struct = array(
4001                         'nickname'  => $user->nickname,
4002                         'userid'    => $user->ID,
4003                         'url'       => $user->user_url,
4004                         'lastname'  => $user->last_name,
4005                         'firstname' => $user->first_name
4006                 );
4007
4008                 return $struct;
4009         }
4010
4011         /**
4012          * Retrieve post.
4013          *
4014          * @since 1.5.0
4015          *
4016          * @param array $args Method parameters.
4017          * @return array|IXR_Error
4018          */
4019         public function blogger_getPost($args) {
4020
4021                 $this->escape($args);
4022
4023                 $post_ID    = (int) $args[1];
4024                 $username = $args[2];
4025                 $password  = $args[3];
4026
4027                 if ( !$user = $this->login($username, $password) )
4028                         return $this->error;
4029
4030                 $post_data = get_post($post_ID, ARRAY_A);
4031                 if ( ! $post_data )
4032                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
4033
4034                 if ( !current_user_can( 'edit_post', $post_ID ) )
4035                         return new IXR_Error( 401, __( 'Sorry, you cannot edit this post.' ) );
4036
4037                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
4038                 do_action( 'xmlrpc_call', 'blogger.getPost' );
4039
4040                 $categories = implode(',', wp_get_post_categories($post_ID));
4041
4042                 $content  = '<title>'.wp_unslash($post_data['post_title']).'</title>';
4043                 $content .= '<category>'.$categories.'</category>';
4044                 $content .= wp_unslash($post_data['post_content']);
4045
4046                 $struct = array(
4047                         'userid'    => $post_data['post_author'],
4048                         'dateCreated' => $this->_convert_date( $post_data['post_date'] ),
4049                         'content'     => $content,
4050                         'postid'  => (string) $post_data['ID']
4051                 );
4052
4053                 return $struct;
4054         }
4055
4056         /**
4057          * Retrieve list of recent posts.
4058          *
4059          * @since 1.5.0
4060          *
4061          * @param array $args Method parameters.
4062          * @return array|IXR_Error
4063          */
4064         public function blogger_getRecentPosts($args) {
4065
4066                 $this->escape($args);
4067
4068                 // $args[0] = appkey - ignored
4069                 $username = $args[2];
4070                 $password  = $args[3];
4071                 if ( isset( $args[4] ) )
4072                         $query = array( 'numberposts' => absint( $args[4] ) );
4073                 else
4074                         $query = array();
4075
4076                 if ( !$user = $this->login($username, $password) )
4077                         return $this->error;
4078
4079                 if ( ! current_user_can( 'edit_posts' ) )
4080                         return new IXR_Error( 401, __( 'Sorry, you cannot edit posts on this site.' ) );
4081
4082                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
4083                 do_action( 'xmlrpc_call', 'blogger.getRecentPosts' );
4084
4085                 $posts_list = wp_get_recent_posts( $query );
4086
4087                 if ( !$posts_list ) {
4088                         $this->error = new IXR_Error(500, __('Either there are no posts, or something went wrong.'));
4089                         return $this->error;
4090                 }
4091
4092                 $recent_posts = array();
4093                 foreach ($posts_list as $entry) {
4094                         if ( !current_user_can( 'edit_post', $entry['ID'] ) )
4095                                 continue;
4096
4097                         $post_date  = $this->_convert_date( $entry['post_date'] );
4098                         $categories = implode(',', wp_get_post_categories($entry['ID']));
4099
4100                         $content  = '<title>'.wp_unslash($entry['post_title']).'</title>';
4101                         $content .= '<category>'.$categories.'</category>';
4102                         $content .= wp_unslash($entry['post_content']);
4103
4104                         $recent_posts[] = array(
4105                                 'userid' => $entry['post_author'],
4106                                 'dateCreated' => $post_date,
4107                                 'content' => $content,
4108                                 'postid' => (string) $entry['ID'],
4109                         );
4110                 }
4111
4112                 return $recent_posts;
4113         }
4114
4115         /**
4116          * Deprecated.
4117          *
4118          * @since 1.5.0
4119          * @deprecated 3.5.0
4120          * @return IXR_Error
4121          */
4122         public function blogger_getTemplate($args) {
4123                 return new IXR_Error( 403, __('Sorry, that file cannot be edited.' ) );
4124         }
4125
4126         /**
4127          * Deprecated.
4128          *
4129          * @since 1.5.0
4130          * @deprecated 3.5.0
4131          * @return IXR_Error
4132          */
4133         public function blogger_setTemplate($args) {
4134                 return new IXR_Error( 403, __('Sorry, that file cannot be edited.' ) );
4135         }
4136
4137         /**
4138          * Create new post.
4139          *
4140          * @since 1.5.0
4141          *
4142          * @param array $args Method parameters.
4143          * @return int|IXR_Error
4144          */
4145         public function blogger_newPost($args) {
4146
4147                 $this->escape($args);
4148
4149                 $username = $args[2];
4150                 $password  = $args[3];
4151                 $content    = $args[4];
4152                 $publish    = $args[5];
4153
4154                 if ( !$user = $this->login($username, $password) )
4155                         return $this->error;
4156
4157                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
4158                 do_action( 'xmlrpc_call', 'blogger.newPost' );
4159
4160                 $cap = ($publish) ? 'publish_posts' : 'edit_posts';
4161                 if ( ! current_user_can( get_post_type_object( 'post' )->cap->create_posts ) || !current_user_can($cap) )
4162                         return new IXR_Error(401, __('Sorry, you are not allowed to post on this site.'));
4163
4164                 $post_status = ($publish) ? 'publish' : 'draft';
4165
4166                 $post_author = $user->ID;
4167
4168                 $post_title = xmlrpc_getposttitle($content);
4169                 $post_category = xmlrpc_getpostcategory($content);
4170                 $post_content = xmlrpc_removepostdata($content);
4171
4172                 $post_date = current_time('mysql');
4173                 $post_date_gmt = current_time('mysql', 1);
4174
4175                 $post_data = compact('post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_title', 'post_category', 'post_status');
4176
4177                 $post_ID = wp_insert_post($post_data);
4178                 if ( is_wp_error( $post_ID ) )
4179                         return new IXR_Error(500, $post_ID->get_error_message());
4180
4181                 if ( !$post_ID )
4182                         return new IXR_Error(500, __('Sorry, your entry could not be posted. Something wrong happened.'));
4183
4184                 $this->attach_uploads( $post_ID, $post_content );
4185
4186                 /**
4187                  * Fires after a new post has been successfully created via the XML-RPC Blogger API.
4188                  *
4189                  * @since 3.4.0
4190                  *
4191                  * @param int   $post_ID ID of the new post.
4192                  * @param array $args    An array of new post arguments.
4193                  */
4194                 do_action( 'xmlrpc_call_success_blogger_newPost', $post_ID, $args );
4195
4196                 return $post_ID;
4197         }
4198
4199         /**
4200          * Edit a post.
4201          *
4202          * @since 1.5.0
4203          *
4204          * @param array $args Method parameters.
4205          * @return bool|IXR_Error true when done.
4206          */
4207         public function blogger_editPost( $args ) {
4208
4209                 $this->escape($args);
4210
4211                 $post_ID     = (int) $args[1];
4212                 $username  = $args[2];
4213                 $password   = $args[3];
4214                 $content     = $args[4];
4215                 $publish     = $args[5];
4216
4217                 if ( ! $user = $this->login( $username, $password ) ) {
4218                         return $this->error;
4219                 }
4220
4221                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
4222                 do_action( 'xmlrpc_call', 'blogger.editPost' );
4223
4224                 $actual_post = get_post( $post_ID, ARRAY_A );
4225
4226                 if ( ! $actual_post || $actual_post['post_type'] != 'post' ) {
4227                         return new IXR_Error( 404, __( 'Sorry, no such post.' ) );
4228                 }
4229
4230                 $this->escape($actual_post);
4231
4232                 if ( ! current_user_can( 'edit_post', $post_ID ) ) {
4233                         return new IXR_Error(401, __('Sorry, you do not have the right to edit this post.'));
4234                 }
4235                 if ( 'publish' == $actual_post['post_status'] && ! current_user_can( 'publish_posts' ) ) {
4236                         return new IXR_Error( 401, __( 'Sorry, you do not have the right to publish this post.' ) );
4237                 }
4238
4239                 $postdata = array();
4240                 $postdata['ID'] = $actual_post['ID'];
4241                 $postdata['post_content'] = xmlrpc_removepostdata( $content );
4242                 $postdata['post_title'] = xmlrpc_getposttitle( $content );
4243                 $postdata['post_category'] = xmlrpc_getpostcategory( $content );
4244                 $postdata['post_status'] = $actual_post['post_status'];
4245                 $postdata['post_excerpt'] = $actual_post['post_excerpt'];
4246
4247                 $result = wp_update_post( $postdata );
4248
4249                 if ( ! $result ) {
4250                         return new IXR_Error(500, __('For some strange yet very annoying reason, this post could not be edited.'));
4251                 }
4252                 $this->attach_uploads( $actual_post['ID'], $postdata['post_content'] );
4253
4254                 /**
4255                  * Fires after a post has been successfully updated via the XML-RPC Blogger API.
4256                  *
4257                  * @since 3.4.0
4258                  *
4259                  * @param int   $post_ID ID of the updated post.
4260                  * @param array $args    An array of arguments for the post to edit.
4261                  */
4262                 do_action( 'xmlrpc_call_success_blogger_editPost', $post_ID, $args );
4263
4264                 return true;
4265         }
4266
4267         /**
4268          * Remove a post.
4269          *
4270          * @since 1.5.0
4271          *
4272          * @param array $args Method parameters.
4273          * @return bool|IXR_Error True when post is deleted.
4274          */
4275         public function blogger_deletePost($args) {
4276                 $this->escape($args);
4277
4278                 $post_ID     = (int) $args[1];
4279                 $username  = $args[2];
4280                 $password   = $args[3];
4281                 $publish     = $args[4];
4282
4283                 if ( !$user = $this->login($username, $password) )
4284                         return $this->error;
4285
4286                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
4287                 do_action( 'xmlrpc_call', 'blogger.deletePost' );
4288
4289                 $actual_post = get_post($post_ID,ARRAY_A);
4290
4291                 if ( !$actual_post || $actual_post['post_type'] != 'post' )
4292                         return new IXR_Error(404, __('Sorry, no such post.'));
4293
4294                 if ( !current_user_can('delete_post', $post_ID) )
4295                         return new IXR_Error(401, __('Sorry, you do not have the right to delete this post.'));
4296
4297                 $result = wp_delete_post($post_ID);
4298
4299                 if ( !$result )
4300                         return new IXR_Error(500, __('For some strange yet very annoying reason, this post could not be deleted.'));
4301
4302                 /**
4303                  * Fires after a post has been successfully deleted via the XML-RPC Blogger API.
4304                  *
4305                  * @since 3.4.0
4306                  *
4307                  * @param int   $post_ID ID of the deleted post.
4308                  * @param array $args    An array of arguments to delete the post.
4309                  */
4310                 do_action( 'xmlrpc_call_success_blogger_deletePost', $post_ID, $args );
4311
4312                 return true;
4313         }
4314
4315         /* MetaWeblog API functions
4316          * specs on wherever Dave Winer wants them to be
4317          */
4318
4319         /**
4320          * Create a new post.
4321          *
4322          * The 'content_struct' argument must contain:
4323          *  - title
4324          *  - description
4325          *  - mt_excerpt
4326          *  - mt_text_more
4327          *  - mt_keywords
4328          *  - mt_tb_ping_urls
4329          *  - categories
4330          *
4331          * Also, it can optionally contain:
4332          *  - wp_slug
4333          *  - wp_password
4334          *  - wp_page_parent_id
4335          *  - wp_page_order
4336          *  - wp_author_id
4337          *  - post_status | page_status - can be 'draft', 'private', 'publish', or 'pending'
4338          *  - mt_allow_comments - can be 'open' or 'closed'
4339          *  - mt_allow_pings - can be 'open' or 'closed'
4340          *  - date_created_gmt
4341          *  - dateCreated
4342          *  - wp_post_thumbnail
4343          *
4344          * @since 1.5.0
4345          *
4346          * @param array $args Method parameters. Contains:
4347          *  - blog_id (unused)
4348          *  - username
4349          *  - password
4350          *  - content_struct
4351          *  - publish
4352          * @return int|IXR_Error
4353          */
4354         public function mw_newPost($args) {
4355                 $this->escape($args);
4356
4357                 $username  = $args[1];
4358                 $password   = $args[2];
4359                 $content_struct = $args[3];
4360                 $publish     = isset( $args[4] ) ? $args[4] : 0;
4361
4362                 if ( !$user = $this->login($username, $password) )
4363                         return $this->error;
4364
4365                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
4366                 do_action( 'xmlrpc_call', 'metaWeblog.newPost' );
4367
4368                 $page_template = '';
4369                 if ( !empty( $content_struct['post_type'] ) ) {
4370                         if ( $content_struct['post_type'] == 'page' ) {
4371                                 if ( $publish )
4372                                         $cap  = 'publish_pages';
4373                                 elseif ( isset( $content_struct['page_status'] ) && 'publish' == $content_struct['page_status'] )
4374                                         $cap  = 'publish_pages';
4375                                 else
4376                                         $cap = 'edit_pages';
4377                                 $error_message = __( 'Sorry, you are not allowed to publish pages on this site.' );
4378                                 $post_type = 'page';
4379                                 if ( !empty( $content_struct['wp_page_template'] ) )
4380                                         $page_template = $content_struct['wp_page_template'];
4381                         } elseif ( $content_struct['post_type'] == 'post' ) {
4382                                 if ( $publish )
4383                                         $cap  = 'publish_posts';
4384                                 elseif ( isset( $content_struct['post_status'] ) && 'publish' == $content_struct['post_status'] )
4385                                         $cap  = 'publish_posts';
4386                                 else
4387                                         $cap = 'edit_posts';
4388                                 $error_message = __( 'Sorry, you are not allowed to publish posts on this site.' );
4389                                 $post_type = 'post';
4390                         } else {
4391                                 // No other post_type values are allowed here
4392                                 return new IXR_Error( 401, __( 'Invalid post type' ) );
4393                         }
4394                 } else {
4395                         if ( $publish )
4396                                 $cap  = 'publish_posts';
4397                         elseif ( isset( $content_struct['post_status'] ) && 'publish' == $content_struct['post_status'])
4398                                 $cap  = 'publish_posts';
4399                         else
4400                                 $cap = 'edit_posts';
4401                         $error_message = __( 'Sorry, you are not allowed to publish posts on this site.' );
4402                         $post_type = 'post';
4403                 }
4404
4405                 if ( ! current_user_can( get_post_type_object( $post_type )->cap->create_posts ) )
4406                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to publish posts on this site.' ) );
4407                 if ( !current_user_can( $cap ) )
4408                         return new IXR_Error( 401, $error_message );
4409
4410                 // Check for a valid post format if one was given
4411                 if ( isset( $content_struct['wp_post_format'] ) ) {
4412                         $content_struct['wp_post_format'] = sanitize_key( $content_struct['wp_post_format'] );
4413                         if ( !array_key_exists( $content_struct['wp_post_format'], get_post_format_strings() ) ) {
4414                                 return new IXR_Error( 404, __( 'Invalid post format' ) );
4415                         }
4416                 }
4417
4418                 // Let WordPress generate the post_name (slug) unless
4419                 // one has been provided.
4420                 $post_name = "";
4421                 if ( isset($content_struct['wp_slug']) )
4422                         $post_name = $content_struct['wp_slug'];
4423
4424                 // Only use a password if one was given.
4425                 if ( isset($content_struct['wp_password']) )
4426                         $post_password = $content_struct['wp_password'];
4427
4428                 // Only set a post parent if one was provided.
4429                 if ( isset($content_struct['wp_page_parent_id']) )
4430                         $post_parent = $content_struct['wp_page_parent_id'];
4431
4432                 // Only set the menu_order if it was provided.
4433                 if ( isset($content_struct['wp_page_order']) )
4434                         $menu_order = $content_struct['wp_page_order'];
4435
4436                 $post_author = $user->ID;
4437
4438                 // If an author id was provided then use it instead.
4439                 if ( isset( $content_struct['wp_author_id'] ) && ( $user->ID != $content_struct['wp_author_id'] ) ) {
4440                         switch ( $post_type ) {
4441                                 case "post":
4442                                         if ( !current_user_can( 'edit_others_posts' ) )
4443                                                 return new IXR_Error( 401, __( 'You are not allowed to create posts as this user.' ) );
4444                                         break;
4445                                 case "page":
4446                                         if ( !current_user_can( 'edit_others_pages' ) )
4447                                                 return new IXR_Error( 401, __( 'You are not allowed to create pages as this user.' ) );
4448                                         break;
4449                                 default:
4450                                         return new IXR_Error( 401, __( 'Invalid post type' ) );
4451                                         break;
4452                         }
4453                         $author = get_userdata( $content_struct['wp_author_id'] );
4454                         if ( ! $author )
4455                                 return new IXR_Error( 404, __( 'Invalid author ID.' ) );
4456                         $post_author = $content_struct['wp_author_id'];
4457                 }
4458
4459                 $post_title = isset( $content_struct['title'] ) ? $content_struct['title'] : null;
4460                 $post_content = isset( $content_struct['description'] ) ? $content_struct['description'] : null;
4461
4462                 $post_status = $publish ? 'publish' : 'draft';
4463
4464                 if ( isset( $content_struct["{$post_type}_status"] ) ) {
4465                         switch ( $content_struct["{$post_type}_status"] ) {
4466                                 case 'draft':
4467                                 case 'pending':
4468                                 case 'private':
4469                                 case 'publish':
4470                                         $post_status = $content_struct["{$post_type}_status"];
4471                                         break;
4472                                 default:
4473                                         $post_status = $publish ? 'publish' : 'draft';
4474                                         break;
4475                         }
4476                 }
4477
4478                 $post_excerpt = isset($content_struct['mt_excerpt']) ? $content_struct['mt_excerpt'] : null;
4479                 $post_more = isset($content_struct['mt_text_more']) ? $content_struct['mt_text_more'] : null;
4480
4481                 $tags_input = isset($content_struct['mt_keywords']) ? $content_struct['mt_keywords'] : null;
4482
4483                 if ( isset($content_struct['mt_allow_comments']) ) {
4484                         if ( !is_numeric($content_struct['mt_allow_comments']) ) {
4485                                 switch ( $content_struct['mt_allow_comments'] ) {
4486                                         case 'closed':
4487                                                 $comment_status = 'closed';
4488                                                 break;
4489                                         case 'open':
4490                                                 $comment_status = 'open';
4491                                                 break;
4492                                         default:
4493                                                 $comment_status = get_option('default_comment_status');
4494                                                 break;
4495                                 }
4496                         } else {
4497                                 switch ( (int) $content_struct['mt_allow_comments'] ) {
4498                                         case 0:
4499                                         case 2:
4500                                                 $comment_status = 'closed';
4501                                                 break;
4502                                         case 1:
4503                                                 $comment_status = 'open';
4504                                                 break;
4505                                         default:
4506                                                 $comment_status = get_option('default_comment_status');
4507                                                 break;
4508                                 }
4509                         }
4510                 } else {
4511                         $comment_status = get_option('default_comment_status');
4512                 }
4513
4514                 if ( isset($content_struct['mt_allow_pings']) ) {
4515                         if ( !is_numeric($content_struct['mt_allow_pings']) ) {
4516                                 switch ( $content_struct['mt_allow_pings'] ) {
4517                                         case 'closed':
4518                                                 $ping_status = 'closed';
4519                                                 break;
4520                                         case 'open':
4521                                                 $ping_status = 'open';
4522                                                 break;
4523                                         default:
4524                                                 $ping_status = get_option('default_ping_status');
4525                                                 break;
4526                                 }
4527                         } else {
4528                                 switch ( (int) $content_struct['mt_allow_pings'] ) {
4529                                         case 0:
4530                                                 $ping_status = 'closed';
4531                                                 break;
4532                                         case 1:
4533                                                 $ping_status = 'open';
4534                                                 break;
4535                                         default:
4536                                                 $ping_status = get_option('default_ping_status');
4537                                                 break;
4538                                 }
4539                         }
4540                 } else {
4541                         $ping_status = get_option('default_ping_status');
4542                 }
4543
4544                 if ( $post_more )
4545                         $post_content = $post_content . '<!--more-->' . $post_more;
4546
4547                 $to_ping = null;
4548                 if ( isset( $content_struct['mt_tb_ping_urls'] ) ) {
4549                         $to_ping = $content_struct['mt_tb_ping_urls'];
4550                         if ( is_array($to_ping) )
4551                                 $to_ping = implode(' ', $to_ping);
4552                 }
4553
4554                 // Do some timestamp voodoo
4555                 if ( !empty( $content_struct['date_created_gmt'] ) )
4556                         // We know this is supposed to be GMT, so we're going to slap that Z on there by force
4557                         $dateCreated = rtrim( $content_struct['date_created_gmt']->getIso(), 'Z' ) . 'Z';
4558                 elseif ( !empty( $content_struct['dateCreated']) )
4559                         $dateCreated = $content_struct['dateCreated']->getIso();
4560
4561                 if ( !empty( $dateCreated ) ) {
4562                         $post_date = get_date_from_gmt(iso8601_to_datetime($dateCreated));
4563                         $post_date_gmt = iso8601_to_datetime($dateCreated, 'GMT');
4564                 } else {
4565                         $post_date = current_time('mysql');
4566                         $post_date_gmt = current_time('mysql', 1);
4567                 }
4568
4569                 $post_category = array();
4570                 if ( isset( $content_struct['categories'] ) ) {
4571                         $catnames = $content_struct['categories'];
4572
4573                         if ( is_array($catnames) ) {
4574                                 foreach ($catnames as $cat) {
4575                                         $post_category[] = get_cat_ID($cat);
4576                                 }
4577                         }
4578                 }
4579
4580                 $postdata = compact('post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_title', 'post_category', 'post_status', 'post_excerpt', 'comment_status', 'ping_status', 'to_ping', 'post_type', 'post_name', 'post_password', 'post_parent', 'menu_order', 'tags_input', 'page_template');
4581
4582                 $post_ID = $postdata['ID'] = get_default_post_to_edit( $post_type, true )->ID;
4583
4584                 // Only posts can be sticky
4585                 if ( $post_type == 'post' && isset( $content_struct['sticky'] ) ) {
4586                         if ( $content_struct['sticky'] == true )
4587                                 stick_post( $post_ID );
4588                         elseif ( $content_struct['sticky'] == false )
4589                                 unstick_post( $post_ID );
4590                 }
4591
4592                 if ( isset($content_struct['custom_fields']) )
4593                         $this->set_custom_fields($post_ID, $content_struct['custom_fields']);
4594
4595                 if ( isset ( $content_struct['wp_post_thumbnail'] ) ) {
4596                         if ( set_post_thumbnail( $post_ID, $content_struct['wp_post_thumbnail'] ) === false )
4597                                 return new IXR_Error( 404, __( 'Invalid attachment ID.' ) );
4598
4599                         unset( $content_struct['wp_post_thumbnail'] );
4600                 }
4601
4602                 // Handle enclosures
4603                 $thisEnclosure = isset($content_struct['enclosure']) ? $content_struct['enclosure'] : null;
4604                 $this->add_enclosure_if_new($post_ID, $thisEnclosure);
4605
4606                 $this->attach_uploads( $post_ID, $post_content );
4607
4608                 // Handle post formats if assigned, value is validated earlier
4609                 // in this function
4610                 if ( isset( $content_struct['wp_post_format'] ) )
4611                         set_post_format( $post_ID, $content_struct['wp_post_format'] );
4612
4613                 $post_ID = wp_insert_post( $postdata, true );
4614                 if ( is_wp_error( $post_ID ) )
4615                         return new IXR_Error(500, $post_ID->get_error_message());
4616
4617                 if ( !$post_ID )
4618                         return new IXR_Error(500, __('Sorry, your entry could not be posted. Something wrong happened.'));
4619
4620                 /**
4621                  * Fires after a new post has been successfully created via the XML-RPC MovableType API.
4622                  *
4623                  * @since 3.4.0
4624                  *
4625                  * @param int   $post_ID ID of the new post.
4626                  * @param array $args    An array of arguments to create the new post.
4627                  */
4628                 do_action( 'xmlrpc_call_success_mw_newPost', $post_ID, $args );
4629
4630                 return strval($post_ID);
4631         }
4632
4633         /**
4634          * @param integer $post_ID
4635          * @param array   $enclosure
4636          */
4637         public function add_enclosure_if_new( $post_ID, $enclosure ) {
4638                 if ( is_array( $enclosure ) && isset( $enclosure['url'] ) && isset( $enclosure['length'] ) && isset( $enclosure['type'] ) ) {
4639                         $encstring = $enclosure['url'] . "\n" . $enclosure['length'] . "\n" . $enclosure['type'] . "\n";
4640                         $found = false;
4641                         if ( $enclosures = get_post_meta( $post_ID, 'enclosure' ) ) {
4642                                 foreach ( $enclosures as $enc ) {
4643                                         // This method used to omit the trailing new line. #23219
4644                                         if ( rtrim( $enc, "\n" ) == rtrim( $encstring, "\n" ) ) {
4645                                                 $found = true;
4646                                                 break;
4647                                         }
4648                                 }
4649                         }
4650                         if ( ! $found )
4651                                 add_post_meta( $post_ID, 'enclosure', $encstring );
4652                 }
4653         }
4654
4655         /**
4656          * Attach upload to a post.
4657          *
4658          * @since 2.1.0
4659          *
4660          * @param int $post_ID Post ID.
4661          * @param string $post_content Post Content for attachment.
4662          */
4663         public function attach_uploads( $post_ID, $post_content ) {
4664                 global $wpdb;
4665
4666                 // find any unattached files
4667                 $attachments = $wpdb->get_results( "SELECT ID, guid FROM {$wpdb->posts} WHERE post_parent = '0' AND post_type = 'attachment'" );
4668                 if ( is_array( $attachments ) ) {
4669                         foreach ( $attachments as $file ) {
4670                                 if ( ! empty( $file->guid ) && strpos( $post_content, $file->guid ) !== false )
4671                                         $wpdb->update($wpdb->posts, array('post_parent' => $post_ID), array('ID' => $file->ID) );
4672                         }
4673                 }
4674         }
4675
4676         /**
4677          * Edit a post.
4678          *
4679          * @since 1.5.0
4680          *
4681          * @param array $args Method parameters.
4682          * @return bool|IXR_Error True on success.
4683          */
4684         public function mw_editPost($args) {
4685
4686                 $this->escape($args);
4687
4688                 $post_ID        = (int) $args[0];
4689                 $username       = $args[1];
4690                 $password       = $args[2];
4691                 $content_struct = $args[3];
4692                 $publish        = isset( $args[4] ) ? $args[4] : 0;
4693
4694                 if ( ! $user = $this->login($username, $password) )
4695                         return $this->error;
4696
4697                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
4698                 do_action( 'xmlrpc_call', 'metaWeblog.editPost' );
4699
4700                 $postdata = get_post( $post_ID, ARRAY_A );
4701
4702                 // If there is no post data for the give post id, stop
4703                 // now and return an error. Other wise a new post will be
4704                 // created (which was the old behavior).
4705                 if ( ! $postdata || empty( $postdata[ 'ID' ] ) )
4706                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
4707
4708                 if ( ! current_user_can( 'edit_post', $post_ID ) )
4709                         return new IXR_Error( 401, __( 'Sorry, you do not have the right to edit this post.' ) );
4710
4711                 // Use wp.editPost to edit post types other than post and page.
4712                 if ( ! in_array( $postdata[ 'post_type' ], array( 'post', 'page' ) ) )
4713                         return new IXR_Error( 401, __( 'Invalid post type' ) );
4714
4715                 // Thwart attempt to change the post type.
4716                 if ( ! empty( $content_struct[ 'post_type' ] ) && ( $content_struct['post_type'] != $postdata[ 'post_type' ] ) )
4717                         return new IXR_Error( 401, __( 'The post type may not be changed.' ) );
4718
4719                 // Check for a valid post format if one was given
4720                 if ( isset( $content_struct['wp_post_format'] ) ) {
4721                         $content_struct['wp_post_format'] = sanitize_key( $content_struct['wp_post_format'] );
4722                         if ( !array_key_exists( $content_struct['wp_post_format'], get_post_format_strings() ) ) {
4723                                 return new IXR_Error( 404, __( 'Invalid post format' ) );
4724                         }
4725                 }
4726
4727                 $this->escape($postdata);
4728
4729                 $ID = $postdata['ID'];
4730                 $post_content = $postdata['post_content'];
4731                 $post_title = $postdata['post_title'];
4732                 $post_excerpt = $postdata['post_excerpt'];
4733                 $post_password = $postdata['post_password'];
4734                 $post_parent = $postdata['post_parent'];
4735                 $post_type = $postdata['post_type'];
4736                 $menu_order = $postdata['menu_order'];
4737
4738                 // Let WordPress manage slug if none was provided.
4739                 $post_name = "";
4740                 $post_name = $postdata['post_name'];
4741                 if ( isset($content_struct['wp_slug']) )
4742                         $post_name = $content_struct['wp_slug'];
4743
4744                 // Only use a password if one was given.
4745                 if ( isset($content_struct['wp_password']) )
4746                         $post_password = $content_struct['wp_password'];
4747
4748                 // Only set a post parent if one was given.
4749                 if ( isset($content_struct['wp_page_parent_id']) )
4750                         $post_parent = $content_struct['wp_page_parent_id'];
4751
4752                 // Only set the menu_order if it was given.
4753                 if ( isset($content_struct['wp_page_order']) )
4754                         $menu_order = $content_struct['wp_page_order'];
4755
4756                 $page_template = null;
4757                 if ( ! empty( $content_struct['wp_page_template'] ) && 'page' == $post_type )
4758                         $page_template = $content_struct['wp_page_template'];
4759
4760                 $post_author = $postdata['post_author'];
4761
4762                 // Only set the post_author if one is set.
4763                 if ( isset($content_struct['wp_author_id']) && ($user->ID != $content_struct['wp_author_id']) ) {
4764                         switch ( $post_type ) {
4765                                 case 'post':
4766                                         if ( !current_user_can('edit_others_posts') )
4767                                                 return new IXR_Error( 401, __( 'You are not allowed to change the post author as this user.' ) );
4768                                         break;
4769                                 case 'page':
4770                                         if ( !current_user_can('edit_others_pages') )
4771                                                 return new IXR_Error( 401, __( 'You are not allowed to change the page author as this user.' ) );
4772                                         break;
4773                                 default:
4774                                         return new IXR_Error( 401, __( 'Invalid post type' ) );
4775                                         break;
4776                         }
4777                         $post_author = $content_struct['wp_author_id'];
4778                 }
4779
4780                 if ( isset($content_struct['mt_allow_comments']) ) {
4781                         if ( !is_numeric($content_struct['mt_allow_comments']) ) {
4782                                 switch ( $content_struct['mt_allow_comments'] ) {
4783                                         case 'closed':
4784                                                 $comment_status = 'closed';
4785                                                 break;
4786                                         case 'open':
4787                                                 $comment_status = 'open';
4788                                                 break;
4789                                         default:
4790                                                 $comment_status = get_option('default_comment_status');
4791                                                 break;
4792                                 }
4793                         } else {
4794                                 switch ( (int) $content_struct['mt_allow_comments'] ) {
4795                                         case 0:
4796                                         case 2:
4797                                                 $comment_status = 'closed';
4798                                                 break;
4799                                         case 1:
4800                                                 $comment_status = 'open';
4801                                                 break;
4802                                         default:
4803                                                 $comment_status = get_option('default_comment_status');
4804                                                 break;
4805                                 }
4806                         }
4807                 }
4808
4809                 if ( isset($content_struct['mt_allow_pings']) ) {
4810                         if ( !is_numeric($content_struct['mt_allow_pings']) ) {
4811                                 switch ( $content_struct['mt_allow_pings'] ) {
4812                                         case 'closed':
4813                                                 $ping_status = 'closed';
4814                                                 break;
4815                                         case 'open':
4816                                                 $ping_status = 'open';
4817                                                 break;
4818                                         default:
4819                                                 $ping_status = get_option('default_ping_status');
4820                                                 break;
4821                                 }
4822                         } else {
4823                                 switch ( (int) $content_struct["mt_allow_pings"] ) {
4824                                         case 0:
4825                                                 $ping_status = 'closed';
4826                                                 break;
4827                                         case 1:
4828                                                 $ping_status = 'open';
4829                                                 break;
4830                                         default:
4831                                                 $ping_status = get_option('default_ping_status');
4832                                                 break;
4833                                 }
4834                         }
4835                 }
4836
4837                 if ( isset( $content_struct['title'] ) )
4838                         $post_title =  $content_struct['title'];
4839
4840                 if ( isset( $content_struct['description'] ) )
4841                         $post_content = $content_struct['description'];
4842
4843                 $post_category = array();
4844                 if ( isset( $content_struct['categories'] ) ) {
4845                         $catnames = $content_struct['categories'];
4846                         if ( is_array($catnames) ) {
4847                                 foreach ($catnames as $cat) {
4848                                         $post_category[] = get_cat_ID($cat);
4849                                 }
4850                         }
4851                 }
4852
4853                 if ( isset( $content_struct['mt_excerpt'] ) )
4854                         $post_excerpt =  $content_struct['mt_excerpt'];
4855
4856                 $post_more = isset( $content_struct['mt_text_more'] ) ? $content_struct['mt_text_more'] : null;
4857
4858                 $post_status = $publish ? 'publish' : 'draft';
4859                 if ( isset( $content_struct["{$post_type}_status"] ) ) {
4860                         switch( $content_struct["{$post_type}_status"] ) {
4861                                 case 'draft':
4862                                 case 'pending':
4863                                 case 'private':
4864                                 case 'publish':
4865                                         $post_status = $content_struct["{$post_type}_status"];
4866                                         break;
4867                                 default:
4868                                         $post_status = $publish ? 'publish' : 'draft';
4869                                         break;
4870                         }
4871                 }
4872
4873                 $tags_input = isset( $content_struct['mt_keywords'] ) ? $content_struct['mt_keywords'] : null;
4874
4875                 if ( ('publish' == $post_status) ) {
4876                         if ( ( 'page' == $post_type ) && !current_user_can('publish_pages') )
4877                                 return new IXR_Error(401, __('Sorry, you do not have the right to publish this page.'));
4878                         else if ( !current_user_can('publish_posts') )
4879                                 return new IXR_Error(401, __('Sorry, you do not have the right to publish this post.'));
4880                 }
4881
4882                 if ( $post_more )
4883                         $post_content = $post_content . "<!--more-->" . $post_more;
4884
4885                 $to_ping = null;
4886                 if ( isset( $content_struct['mt_tb_ping_urls'] ) ) {
4887                         $to_ping = $content_struct['mt_tb_ping_urls'];
4888                         if ( is_array($to_ping) )
4889                                 $to_ping = implode(' ', $to_ping);
4890                 }
4891
4892                 // Do some timestamp voodoo
4893                 if ( !empty( $content_struct['date_created_gmt'] ) )
4894                         // We know this is supposed to be GMT, so we're going to slap that Z on there by force
4895                         $dateCreated = rtrim( $content_struct['date_created_gmt']->getIso(), 'Z' ) . 'Z';
4896                 elseif ( !empty( $content_struct['dateCreated']) )
4897                         $dateCreated = $content_struct['dateCreated']->getIso();
4898
4899                 if ( !empty( $dateCreated ) ) {
4900                         $post_date = get_date_from_gmt(iso8601_to_datetime($dateCreated));
4901                         $post_date_gmt = iso8601_to_datetime($dateCreated, 'GMT');
4902                 } else {
4903                         $post_date     = $postdata['post_date'];
4904                         $post_date_gmt = $postdata['post_date_gmt'];
4905                 }
4906
4907                 // We've got all the data -- post it:
4908                 $newpost = compact('ID', 'post_content', 'post_title', 'post_category', 'post_status', 'post_excerpt', 'comment_status', 'ping_status', 'post_date', 'post_date_gmt', 'to_ping', 'post_name', 'post_password', 'post_parent', 'menu_order', 'post_author', 'tags_input', 'page_template');
4909
4910                 $result = wp_update_post($newpost, true);
4911                 if ( is_wp_error( $result ) )
4912                         return new IXR_Error(500, $result->get_error_message());
4913
4914                 if ( !$result )
4915                         return new IXR_Error(500, __('Sorry, your entry could not be edited. Something wrong happened.'));
4916
4917                 // Only posts can be sticky
4918                 if ( $post_type == 'post' && isset( $content_struct['sticky'] ) ) {
4919                         if ( $content_struct['sticky'] == true )
4920                                 stick_post( $post_ID );
4921                         elseif ( $content_struct['sticky'] == false )
4922                                 unstick_post( $post_ID );
4923                 }
4924
4925                 if ( isset($content_struct['custom_fields']) )
4926                         $this->set_custom_fields($post_ID, $content_struct['custom_fields']);
4927
4928                 if ( isset ( $content_struct['wp_post_thumbnail'] ) ) {
4929                         // empty value deletes, non-empty value adds/updates
4930                         if ( empty( $content_struct['wp_post_thumbnail'] ) ) {
4931                                 delete_post_thumbnail( $post_ID );
4932                         } else {
4933                                 if ( set_post_thumbnail( $post_ID, $content_struct['wp_post_thumbnail'] ) === false )
4934                                         return new IXR_Error( 404, __( 'Invalid attachment ID.' ) );
4935                         }
4936                         unset( $content_struct['wp_post_thumbnail'] );
4937                 }
4938
4939                 // Handle enclosures
4940                 $thisEnclosure = isset($content_struct['enclosure']) ? $content_struct['enclosure'] : null;
4941                 $this->add_enclosure_if_new($post_ID, $thisEnclosure);
4942
4943                 $this->attach_uploads( $ID, $post_content );
4944
4945                 // Handle post formats if assigned, validation is handled
4946                 // earlier in this function
4947                 if ( isset( $content_struct['wp_post_format'] ) )
4948                         set_post_format( $post_ID, $content_struct['wp_post_format'] );
4949
4950                 /**
4951                  * Fires after a post has been successfully updated via the XML-RPC MovableType API.
4952                  *
4953                  * @since 3.4.0
4954                  *
4955                  * @param int   $post_ID ID of the updated post.
4956                  * @param array $args    An array of arguments to update the post.
4957                  */
4958                 do_action( 'xmlrpc_call_success_mw_editPost', $post_ID, $args );
4959
4960                 return true;
4961         }
4962
4963         /**
4964          * Retrieve post.
4965          *
4966          * @since 1.5.0
4967          *
4968          * @param array $args Method parameters.
4969          * @return array|IXR_Error
4970          */
4971         public function mw_getPost($args) {
4972
4973                 $this->escape($args);
4974
4975                 $post_ID     = (int) $args[0];
4976                 $username  = $args[1];
4977                 $password   = $args[2];
4978
4979                 if ( !$user = $this->login($username, $password) )
4980                         return $this->error;
4981
4982                 $postdata = get_post($post_ID, ARRAY_A);
4983                 if ( ! $postdata )
4984                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
4985
4986                 if ( !current_user_can( 'edit_post', $post_ID ) )
4987                         return new IXR_Error( 401, __( 'Sorry, you cannot edit this post.' ) );
4988
4989                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
4990                 do_action( 'xmlrpc_call', 'metaWeblog.getPost' );
4991
4992                 if ($postdata['post_date'] != '') {
4993                         $post_date = $this->_convert_date( $postdata['post_date'] );
4994                         $post_date_gmt = $this->_convert_date_gmt( $postdata['post_date_gmt'],  $postdata['post_date'] );
4995                         $post_modified = $this->_convert_date( $postdata['post_modified'] );
4996                         $post_modified_gmt = $this->_convert_date_gmt( $postdata['post_modified_gmt'], $postdata['post_modified'] );
4997
4998                         $categories = array();
4999                         $catids = wp_get_post_categories($post_ID);
5000                         foreach($catids as $catid)
5001                                 $categories[] = get_cat_name($catid);
5002
5003                         $tagnames = array();
5004                         $tags = wp_get_post_tags( $post_ID );
5005                         if ( !empty( $tags ) ) {
5006                                 foreach ( $tags as $tag )
5007                                         $tagnames[] = $tag->name;
5008                                 $tagnames = implode( ', ', $tagnames );
5009                         } else {
5010                                 $tagnames = '';
5011                         }
5012
5013                         $post = get_extended($postdata['post_content']);
5014                         $link = post_permalink($postdata['ID']);
5015
5016                         // Get the author info.
5017                         $author = get_userdata($postdata['post_author']);
5018
5019                         $allow_comments = ('open' == $postdata['comment_status']) ? 1 : 0;
5020                         $allow_pings = ('open' == $postdata['ping_status']) ? 1 : 0;
5021
5022                         // Consider future posts as published
5023                         if ( $postdata['post_status'] === 'future' )
5024                                 $postdata['post_status'] = 'publish';
5025
5026                         // Get post format
5027                         $post_format = get_post_format( $post_ID );
5028                         if ( empty( $post_format ) )
5029                                 $post_format = 'standard';
5030
5031                         $sticky = false;
5032                         if ( is_sticky( $post_ID ) )
5033                                 $sticky = true;
5034
5035                         $enclosure = array();
5036                         foreach ( (array) get_post_custom($post_ID) as $key => $val) {
5037                                 if ($key == 'enclosure') {
5038                                         foreach ( (array) $val as $enc ) {
5039                                                 $encdata = explode("\n", $enc);
5040                                                 $enclosure['url'] = trim(htmlspecialchars($encdata[0]));
5041                                                 $enclosure['length'] = (int) trim($encdata[1]);
5042                                                 $enclosure['type'] = trim($encdata[2]);
5043                                                 break 2;
5044                                         }
5045                                 }
5046                         }
5047
5048                         $resp = array(
5049                                 'dateCreated' => $post_date,
5050                                 'userid' => $postdata['post_author'],
5051                                 'postid' => $postdata['ID'],
5052                                 'description' => $post['main'],
5053                                 'title' => $postdata['post_title'],
5054                                 'link' => $link,
5055                                 'permaLink' => $link,
5056                                 // commented out because no other tool seems to use this
5057                                 //            'content' => $entry['post_content'],
5058                                 'categories' => $categories,
5059                                 'mt_excerpt' => $postdata['post_excerpt'],
5060                                 'mt_text_more' => $post['extended'],
5061                                 'wp_more_text' => $post['more_text'],
5062                                 'mt_allow_comments' => $allow_comments,
5063                                 'mt_allow_pings' => $allow_pings,
5064                                 'mt_keywords' => $tagnames,
5065                                 'wp_slug' => $postdata['post_name'],
5066                                 'wp_password' => $postdata['post_password'],
5067                                 'wp_author_id' => (string) $author->ID,
5068                                 'wp_author_display_name' => $author->display_name,
5069                                 'date_created_gmt' => $post_date_gmt,
5070                                 'post_status' => $postdata['post_status'],
5071                                 'custom_fields' => $this->get_custom_fields($post_ID),
5072                                 'wp_post_format' => $post_format,
5073                                 'sticky' => $sticky,
5074                                 'date_modified' => $post_modified,
5075                                 'date_modified_gmt' => $post_modified_gmt
5076                         );
5077
5078                         if ( !empty($enclosure) ) $resp['enclosure'] = $enclosure;
5079
5080                         $resp['wp_post_thumbnail'] = get_post_thumbnail_id( $postdata['ID'] );
5081
5082                         return $resp;
5083                 } else {
5084                         return new IXR_Error(404, __('Sorry, no such post.'));
5085                 }
5086         }
5087
5088         /**
5089          * Retrieve list of recent posts.
5090          *
5091          * @since 1.5.0
5092          *
5093          * @param array $args Method parameters.
5094          * @return array|IXR_Error
5095          */
5096         public function mw_getRecentPosts($args) {
5097
5098                 $this->escape($args);
5099
5100                 $username  = $args[1];
5101                 $password   = $args[2];
5102                 if ( isset( $args[3] ) )
5103                         $query = array( 'numberposts' => absint( $args[3] ) );
5104                 else
5105                         $query = array();
5106
5107                 if ( !$user = $this->login($username, $password) )
5108                         return $this->error;
5109
5110                 if ( ! current_user_can( 'edit_posts' ) )
5111                         return new IXR_Error( 401, __( 'Sorry, you cannot edit posts on this site.' ) );
5112
5113                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
5114                 do_action( 'xmlrpc_call', 'metaWeblog.getRecentPosts' );
5115
5116                 $posts_list = wp_get_recent_posts( $query );
5117
5118                 if ( !$posts_list )
5119                         return array();
5120
5121                 $recent_posts = array();
5122                 foreach ($posts_list as $entry) {
5123                         if ( !current_user_can( 'edit_post', $entry['ID'] ) )
5124                                 continue;
5125
5126                         $post_date = $this->_convert_date( $entry['post_date'] );
5127                         $post_date_gmt = $this->_convert_date_gmt( $entry['post_date_gmt'], $entry['post_date'] );
5128                         $post_modified = $this->_convert_date( $entry['post_modified'] );
5129                         $post_modified_gmt = $this->_convert_date_gmt( $entry['post_modified_gmt'], $entry['post_modified'] );
5130
5131                         $categories = array();
5132                         $catids = wp_get_post_categories($entry['ID']);
5133                         foreach( $catids as $catid )
5134                                 $categories[] = get_cat_name($catid);
5135
5136                         $tagnames = array();
5137                         $tags = wp_get_post_tags( $entry['ID'] );
5138                         if ( !empty( $tags ) ) {
5139                                 foreach ( $tags as $tag ) {
5140                                         $tagnames[] = $tag->name;
5141                                 }
5142                                 $tagnames = implode( ', ', $tagnames );
5143                         } else {
5144                                 $tagnames = '';
5145                         }
5146
5147                         $post = get_extended($entry['post_content']);
5148                         $link = post_permalink($entry['ID']);
5149
5150                         // Get the post author info.
5151                         $author = get_userdata($entry['post_author']);
5152
5153                         $allow_comments = ('open' == $entry['comment_status']) ? 1 : 0;
5154                         $allow_pings = ('open' == $entry['ping_status']) ? 1 : 0;
5155
5156                         // Consider future posts as published
5157                         if ( $entry['post_status'] === 'future' )
5158                                 $entry['post_status'] = 'publish';
5159
5160                         // Get post format
5161                         $post_format = get_post_format( $entry['ID'] );
5162                         if ( empty( $post_format ) )
5163                                 $post_format = 'standard';
5164
5165                         $recent_posts[] = array(
5166                                 'dateCreated' => $post_date,
5167                                 'userid' => $entry['post_author'],
5168                                 'postid' => (string) $entry['ID'],
5169                                 'description' => $post['main'],
5170                                 'title' => $entry['post_title'],
5171                                 'link' => $link,
5172                                 'permaLink' => $link,
5173                                 // commented out because no other tool seems to use this
5174                                 // 'content' => $entry['post_content'],
5175                                 'categories' => $categories,
5176                                 'mt_excerpt' => $entry['post_excerpt'],
5177                                 'mt_text_more' => $post['extended'],
5178                                 'wp_more_text' => $post['more_text'],
5179                                 'mt_allow_comments' => $allow_comments,
5180                                 'mt_allow_pings' => $allow_pings,
5181                                 'mt_keywords' => $tagnames,
5182                                 'wp_slug' => $entry['post_name'],
5183                                 'wp_password' => $entry['post_password'],
5184                                 'wp_author_id' => (string) $author->ID,
5185                                 'wp_author_display_name' => $author->display_name,
5186                                 'date_created_gmt' => $post_date_gmt,
5187                                 'post_status' => $entry['post_status'],
5188                                 'custom_fields' => $this->get_custom_fields($entry['ID']),
5189                                 'wp_post_format' => $post_format,
5190                                 'date_modified' => $post_modified,
5191                                 'date_modified_gmt' => $post_modified_gmt,
5192                                 'sticky' => ( $entry['post_type'] === 'post' && is_sticky( $entry['ID'] ) ),
5193                                 'wp_post_thumbnail' => get_post_thumbnail_id( $entry['ID'] )
5194                         );
5195                 }
5196
5197                 return $recent_posts;
5198         }
5199
5200         /**
5201          * Retrieve the list of categories on a given blog.
5202          *
5203          * @since 1.5.0
5204          *
5205          * @param array $args Method parameters.
5206          * @return array|IXR_Error
5207          */
5208         public function mw_getCategories($args) {
5209
5210                 $this->escape($args);
5211
5212                 $username  = $args[1];
5213                 $password   = $args[2];
5214
5215                 if ( !$user = $this->login($username, $password) )
5216                         return $this->error;
5217
5218                 if ( !current_user_can( 'edit_posts' ) )
5219                         return new IXR_Error( 401, __( 'Sorry, you must be able to edit posts on this site in order to view categories.' ) );
5220
5221                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
5222                 do_action( 'xmlrpc_call', 'metaWeblog.getCategories' );
5223
5224                 $categories_struct = array();
5225
5226                 if ( $cats = get_categories(array('get' => 'all')) ) {
5227                         foreach ( $cats as $cat ) {
5228                                 $struct = array();
5229                                 $struct['categoryId'] = $cat->term_id;
5230                                 $struct['parentId'] = $cat->parent;
5231                                 $struct['description'] = $cat->name;
5232                                 $struct['categoryDescription'] = $cat->description;
5233                                 $struct['categoryName'] = $cat->name;
5234                                 $struct['htmlUrl'] = esc_html(get_category_link($cat->term_id));
5235                                 $struct['rssUrl'] = esc_html(get_category_feed_link($cat->term_id, 'rss2'));
5236
5237                                 $categories_struct[] = $struct;
5238                         }
5239                 }
5240
5241                 return $categories_struct;
5242         }
5243
5244         /**
5245          * Uploads a file, following your settings.
5246          *
5247          * Adapted from a patch by Johann Richard.
5248          *
5249          * @link http://mycvs.org/archives/2004/06/30/file-upload-to-wordpress-in-ecto/
5250          *
5251          * @since 1.5.0
5252          *
5253          * @param array $args Method parameters.
5254          * @return array|IXR_Error
5255          */
5256         public function mw_newMediaObject($args) {
5257                 global $wpdb;
5258
5259                 $username  = $this->escape($args[1]);
5260                 $password   = $this->escape($args[2]);
5261                 $data        = $args[3];
5262
5263                 $name = sanitize_file_name( $data['name'] );
5264                 $type = $data['type'];
5265                 $bits = $data['bits'];
5266
5267                 if ( !$user = $this->login($username, $password) )
5268                         return $this->error;
5269
5270                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
5271                 do_action( 'xmlrpc_call', 'metaWeblog.newMediaObject' );
5272
5273                 if ( !current_user_can('upload_files') ) {
5274                         $this->error = new IXR_Error( 401, __( 'You do not have permission to upload files.' ) );
5275                         return $this->error;
5276                 }
5277
5278                 /**
5279                  * Filter whether to preempt the XML-RPC media upload.
5280                  *
5281                  * Passing a truthy value will effectively short-circuit the media upload,
5282                  * returning that value as a 500 error instead.
5283                  *
5284                  * @since 2.1.0
5285                  *
5286                  * @param bool $error Whether to pre-empt the media upload. Default false.
5287                  */
5288                 if ( $upload_err = apply_filters( 'pre_upload_error', false ) ) {
5289                         return new IXR_Error( 500, $upload_err );
5290                 }
5291
5292                 if ( !empty($data['overwrite']) && ($data['overwrite'] == true) ) {
5293                         // Get postmeta info on the object.
5294                         $old_file = $wpdb->get_row("
5295                                 SELECT ID
5296                                 FROM {$wpdb->posts}
5297                                 WHERE post_title = '{$name}'
5298                                         AND post_type = 'attachment'
5299                         ");
5300
5301                         // Delete previous file.
5302                         wp_delete_attachment($old_file->ID);
5303
5304                         // Make sure the new name is different by pre-pending the
5305                         // previous post id.
5306                         $filename = preg_replace('/^wpid\d+-/', '', $name);
5307                         $name = "wpid{$old_file->ID}-{$filename}";
5308                 }
5309
5310                 $upload = wp_upload_bits($name, null, $bits);
5311                 if ( ! empty($upload['error']) ) {
5312                         $errorString = sprintf(__('Could not write file %1$s (%2$s)'), $name, $upload['error']);
5313                         return new IXR_Error(500, $errorString);
5314                 }
5315                 // Construct the attachment array
5316                 $post_id = 0;
5317                 if ( ! empty( $data['post_id'] ) ) {
5318                         $post_id = (int) $data['post_id'];
5319
5320                         if ( ! current_user_can( 'edit_post', $post_id ) )
5321                                 return new IXR_Error( 401, __( 'Sorry, you cannot edit this post.' ) );
5322                 }
5323                 $attachment = array(
5324                         'post_title' => $name,
5325                         'post_content' => '',
5326                         'post_type' => 'attachment',
5327                         'post_parent' => $post_id,
5328                         'post_mime_type' => $type,
5329                         'guid' => $upload[ 'url' ]
5330                 );
5331
5332                 // Save the data
5333                 $id = wp_insert_attachment( $attachment, $upload[ 'file' ], $post_id );
5334                 wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $upload['file'] ) );
5335
5336                 /**
5337                  * Fires after a new attachment has been added via the XML-RPC MovableType API.
5338                  *
5339                  * @since 3.4.0
5340                  *
5341                  * @param int   $id   ID of the new attachment.
5342                  * @param array $args An array of arguments to add the attachment.
5343                  */
5344                 do_action( 'xmlrpc_call_success_mw_newMediaObject', $id, $args );
5345
5346                 $struct = array(
5347                         'id'   => strval( $id ),
5348                         'file' => $name,
5349                         'url'  => $upload[ 'url' ],
5350                         'type' => $type
5351                 );
5352
5353                 /** This filter is documented in wp-admin/includes/file.php */
5354                 return apply_filters( 'wp_handle_upload', $struct, 'upload' );
5355         }
5356
5357         /* MovableType API functions
5358          * specs on http://www.movabletype.org/docs/mtmanual_programmatic.html
5359          */
5360
5361         /**
5362          * Retrieve the post titles of recent posts.
5363          *
5364          * @since 1.5.0
5365          *
5366          * @param array $args Method parameters.
5367          * @return array|IXR_Error
5368          */
5369         public function mt_getRecentPostTitles($args) {
5370
5371                 $this->escape($args);
5372
5373                 $username  = $args[1];
5374                 $password   = $args[2];
5375                 if ( isset( $args[3] ) )
5376                         $query = array( 'numberposts' => absint( $args[3] ) );
5377                 else
5378                         $query = array();
5379
5380                 if ( !$user = $this->login($username, $password) )
5381                         return $this->error;
5382
5383                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
5384                 do_action( 'xmlrpc_call', 'mt.getRecentPostTitles' );
5385
5386                 $posts_list = wp_get_recent_posts( $query );
5387
5388                 if ( !$posts_list ) {
5389                         $this->error = new IXR_Error(500, __('Either there are no posts, or something went wrong.'));
5390                         return $this->error;
5391                 }
5392
5393                 $recent_posts = array();
5394
5395                 foreach ($posts_list as $entry) {
5396                         if ( !current_user_can( 'edit_post', $entry['ID'] ) )
5397                                 continue;
5398
5399                         $post_date = $this->_convert_date( $entry['post_date'] );
5400                         $post_date_gmt = $this->_convert_date_gmt( $entry['post_date_gmt'], $entry['post_date'] );
5401
5402                         $recent_posts[] = array(
5403                                 'dateCreated' => $post_date,
5404                                 'userid' => $entry['post_author'],
5405                                 'postid' => (string) $entry['ID'],
5406                                 'title' => $entry['post_title'],
5407                                 'post_status' => $entry['post_status'],
5408                                 'date_created_gmt' => $post_date_gmt
5409                         );
5410                 }
5411
5412                 return $recent_posts;
5413         }
5414
5415         /**
5416          * Retrieve list of all categories on blog.
5417          *
5418          * @since 1.5.0
5419          *
5420          * @param array $args Method parameters.
5421          * @return array|IXR_Error
5422          */
5423         public function mt_getCategoryList($args) {
5424
5425                 $this->escape($args);
5426
5427                 $username  = $args[1];
5428                 $password   = $args[2];
5429
5430                 if ( !$user = $this->login($username, $password) )
5431                         return $this->error;
5432
5433                 if ( !current_user_can( 'edit_posts' ) )
5434                         return new IXR_Error( 401, __( 'Sorry, you must be able to edit posts on this site in order to view categories.' ) );
5435
5436                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
5437                 do_action( 'xmlrpc_call', 'mt.getCategoryList' );
5438
5439                 $categories_struct = array();
5440
5441                 if ( $cats = get_categories(array('hide_empty' => 0, 'hierarchical' => 0)) ) {
5442                         foreach ( $cats as $cat ) {
5443                                 $struct = array();
5444                                 $struct['categoryId'] = $cat->term_id;
5445                                 $struct['categoryName'] = $cat->name;
5446
5447                                 $categories_struct[] = $struct;
5448                         }
5449                 }
5450
5451                 return $categories_struct;
5452         }
5453
5454         /**
5455          * Retrieve post categories.
5456          *
5457          * @since 1.5.0
5458          *
5459          * @param array $args Method parameters.
5460          * @return array|IXR_Error
5461          */
5462         public function mt_getPostCategories($args) {
5463
5464                 $this->escape($args);
5465
5466                 $post_ID     = (int) $args[0];
5467                 $username  = $args[1];
5468                 $password   = $args[2];
5469
5470                 if ( !$user = $this->login($username, $password) )
5471                         return $this->error;
5472
5473                 if ( ! get_post( $post_ID ) )
5474                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
5475
5476                 if ( !current_user_can( 'edit_post', $post_ID ) )
5477                         return new IXR_Error( 401, __( 'Sorry, you can not edit this post.' ) );
5478
5479                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
5480                 do_action( 'xmlrpc_call', 'mt.getPostCategories' );
5481
5482                 $categories = array();
5483                 $catids = wp_get_post_categories(intval($post_ID));
5484                 // first listed category will be the primary category
5485                 $isPrimary = true;
5486                 foreach ( $catids as $catid ) {
5487                         $categories[] = array(
5488                                 'categoryName' => get_cat_name($catid),
5489                                 'categoryId' => (string) $catid,
5490                                 'isPrimary' => $isPrimary
5491                         );
5492                         $isPrimary = false;
5493                 }
5494
5495                 return $categories;
5496         }
5497
5498         /**
5499          * Sets categories for a post.
5500          *
5501          * @since 1.5.0
5502          *
5503          * @param array $args Method parameters.
5504          * @return bool|IXR_Error True on success.
5505          */
5506         public function mt_setPostCategories($args) {
5507
5508                 $this->escape($args);
5509
5510                 $post_ID     = (int) $args[0];
5511                 $username  = $args[1];
5512                 $password   = $args[2];
5513                 $categories  = $args[3];
5514
5515                 if ( !$user = $this->login($username, $password) )
5516                         return $this->error;
5517
5518                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
5519                 do_action( 'xmlrpc_call', 'mt.setPostCategories' );
5520
5521                 if ( ! get_post( $post_ID ) )
5522                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
5523
5524                 if ( !current_user_can('edit_post', $post_ID) )
5525                         return new IXR_Error(401, __('Sorry, you cannot edit this post.'));
5526
5527                 $catids = array();
5528                 foreach ( $categories as $cat ) {
5529                         $catids[] = $cat['categoryId'];
5530                 }
5531
5532                 wp_set_post_categories($post_ID, $catids);
5533
5534                 return true;
5535         }
5536
5537         /**
5538          * Retrieve an array of methods supported by this server.
5539          *
5540          * @since 1.5.0
5541          *
5542          * @param array $args Method parameters.
5543          * @return array
5544          */
5545         public function mt_supportedMethods($args) {
5546
5547                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
5548                 do_action( 'xmlrpc_call', 'mt.supportedMethods' );
5549
5550                 $supported_methods = array();
5551                 foreach ( $this->methods as $key => $value ) {
5552                         $supported_methods[] = $key;
5553                 }
5554
5555                 return $supported_methods;
5556         }
5557
5558         /**
5559          * Retrieve an empty array because we don't support per-post text filters.
5560          *
5561          * @since 1.5.0
5562          *
5563          * @param array $args Method parameters.
5564          */
5565         public function mt_supportedTextFilters($args) {
5566                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
5567                 do_action( 'xmlrpc_call', 'mt.supportedTextFilters' );
5568
5569                 /**
5570                  * Filter the MoveableType text filters list for XML-RPC.
5571                  *
5572                  * @since 2.2.0
5573                  *
5574                  * @param array $filters An array of text filters.
5575                  */
5576                 return apply_filters( 'xmlrpc_text_filters', array() );
5577         }
5578
5579         /**
5580          * Retrieve trackbacks sent to a given post.
5581          *
5582          * @since 1.5.0
5583          *
5584          * @param array $args Method parameters.
5585          * @return array|IXR_Error
5586          */
5587         public function mt_getTrackbackPings($args) {
5588
5589                 global $wpdb;
5590
5591                 $post_ID = intval($args);
5592
5593                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
5594                 do_action( 'xmlrpc_call', 'mt.getTrackbackPings' );
5595
5596                 $actual_post = get_post($post_ID, ARRAY_A);
5597
5598                 if ( !$actual_post )
5599                         return new IXR_Error(404, __('Sorry, no such post.'));
5600
5601                 $comments = $wpdb->get_results( $wpdb->prepare("SELECT comment_author_url, comment_content, comment_author_IP, comment_type FROM $wpdb->comments WHERE comment_post_ID = %d", $post_ID) );
5602
5603                 if ( !$comments )
5604                         return array();
5605
5606                 $trackback_pings = array();
5607                 foreach ( $comments as $comment ) {
5608                         if ( 'trackback' == $comment->comment_type ) {
5609                                 $content = $comment->comment_content;
5610                                 $title = substr($content, 8, (strpos($content, '</strong>') - 8));
5611                                 $trackback_pings[] = array(
5612                                         'pingTitle' => $title,
5613                                         'pingURL'   => $comment->comment_author_url,
5614                                         'pingIP'    => $comment->comment_author_IP
5615                                 );
5616                         }
5617                 }
5618
5619                 return $trackback_pings;
5620         }
5621
5622         /**
5623          * Sets a post's publish status to 'publish'.
5624          *
5625          * @since 1.5.0
5626          *
5627          * @param array $args Method parameters.
5628          * @return int|IXR_Error
5629          */
5630         public function mt_publishPost($args) {
5631
5632                 $this->escape($args);
5633
5634                 $post_ID     = (int) $args[0];
5635                 $username  = $args[1];
5636                 $password   = $args[2];
5637
5638                 if ( !$user = $this->login($username, $password) )
5639                         return $this->error;
5640
5641                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
5642                 do_action( 'xmlrpc_call', 'mt.publishPost' );
5643
5644                 $postdata = get_post($post_ID, ARRAY_A);
5645                 if ( ! $postdata )
5646                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
5647
5648                 if ( !current_user_can('publish_posts') || !current_user_can('edit_post', $post_ID) )
5649                         return new IXR_Error(401, __('Sorry, you cannot publish this post.'));
5650
5651                 $postdata['post_status'] = 'publish';
5652
5653                 // retain old cats
5654                 $cats = wp_get_post_categories($post_ID);
5655                 $postdata['post_category'] = $cats;
5656                 $this->escape($postdata);
5657
5658                 $result = wp_update_post($postdata);
5659
5660                 return $result;
5661         }
5662
5663         /* PingBack functions
5664          * specs on www.hixie.ch/specs/pingback/pingback
5665          */
5666
5667         /**
5668          * Retrieves a pingback and registers it.
5669          *
5670          * @since 1.5.0
5671          *
5672          * @param array $args Method parameters.
5673          * @return string|IXR_Error
5674          */
5675         public function pingback_ping($args) {
5676                 global $wpdb;
5677
5678                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
5679                 do_action( 'xmlrpc_call', 'pingback.ping' );
5680
5681                 $this->escape($args);
5682
5683                 $pagelinkedfrom = $args[0];
5684                 $pagelinkedto   = $args[1];
5685
5686                 $title = '';
5687
5688                 $pagelinkedfrom = str_replace('&amp;', '&', $pagelinkedfrom);
5689                 $pagelinkedto = str_replace('&amp;', '&', $pagelinkedto);
5690                 $pagelinkedto = str_replace('&', '&amp;', $pagelinkedto);
5691
5692                 /**
5693                  * Filter the pingback source URI.
5694                  *
5695                  * @since 3.6.0
5696                  *
5697                  * @param string $pagelinkedfrom URI of the page linked from.
5698                  * @param string $pagelinkedto   URI of the page linked to.
5699                  */
5700                 $pagelinkedfrom = apply_filters( 'pingback_ping_source_uri', $pagelinkedfrom, $pagelinkedto );
5701
5702                 if ( ! $pagelinkedfrom )
5703                         return $this->pingback_error( 0, __( 'A valid URL was not provided.' ) );
5704
5705                 // Check if the page linked to is in our site
5706                 $pos1 = strpos($pagelinkedto, str_replace(array('http://www.','http://','https://www.','https://'), '', get_option('home')));
5707                 if ( !$pos1 )
5708                         return $this->pingback_error( 0, __( 'Is there no link to us?' ) );
5709
5710                 // let's find which post is linked to
5711                 // FIXME: does url_to_postid() cover all these cases already?
5712                 //        if so, then let's use it and drop the old code.
5713                 $urltest = parse_url($pagelinkedto);
5714                 if ( $post_ID = url_to_postid($pagelinkedto) ) {
5715                         // $way
5716                 } elseif ( isset( $urltest['path'] ) && preg_match('#p/[0-9]{1,}#', $urltest['path'], $match) ) {
5717                         // the path defines the post_ID (archives/p/XXXX)
5718                         $blah = explode('/', $match[0]);
5719                         $post_ID = (int) $blah[1];
5720                 } elseif ( isset( $urltest['query'] ) && preg_match('#p=[0-9]{1,}#', $urltest['query'], $match) ) {
5721                         // the querystring defines the post_ID (?p=XXXX)
5722                         $blah = explode('=', $match[0]);
5723                         $post_ID = (int) $blah[1];
5724                 } elseif ( isset($urltest['fragment']) ) {
5725                         // an #anchor is there, it's either...
5726                         if ( intval($urltest['fragment']) ) {
5727                                 // ...an integer #XXXX (simplest case)
5728                                 $post_ID = (int) $urltest['fragment'];
5729                         } elseif ( preg_match('/post-[0-9]+/',$urltest['fragment']) ) {
5730                                 // ...a post id in the form 'post-###'
5731                                 $post_ID = preg_replace('/[^0-9]+/', '', $urltest['fragment']);
5732                         } elseif ( is_string($urltest['fragment']) ) {
5733                                 // ...or a string #title, a little more complicated
5734                                 $title = preg_replace('/[^a-z0-9]/i', '.', $urltest['fragment']);
5735                                 $sql = $wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE post_title RLIKE %s", $title );
5736                                 if (! ($post_ID = $wpdb->get_var($sql)) ) {
5737                                         // returning unknown error '0' is better than die()ing
5738                                         return $this->pingback_error( 0, '' );
5739                                 }
5740                         }
5741                 } else {
5742                         // TODO: Attempt to extract a post ID from the given URL
5743                         return $this->pingback_error( 33, __('The specified target URL cannot be used as a target. It either doesn&#8217;t exist, or it is not a pingback-enabled resource.' ) );
5744                 }
5745                 $post_ID = (int) $post_ID;
5746
5747                 $post = get_post($post_ID);
5748
5749                 if ( !$post ) // Post_ID not found
5750                         return $this->pingback_error( 33, __( 'The specified target URL cannot be used as a target. It either doesn&#8217;t exist, or it is not a pingback-enabled resource.' ) );
5751
5752                 if ( $post_ID == url_to_postid($pagelinkedfrom) )
5753                         return $this->pingback_error( 0, __( 'The source URL and the target URL cannot both point to the same resource.' ) );
5754
5755                 // Check if pings are on
5756                 if ( !pings_open($post) )
5757                         return $this->pingback_error( 33, __( 'The specified target URL cannot be used as a target. It either doesn&#8217;t exist, or it is not a pingback-enabled resource.' ) );
5758
5759                 // Let's check that the remote site didn't already pingback this entry
5760                 if ( $wpdb->get_results( $wpdb->prepare("SELECT * FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_author_url = %s", $post_ID, $pagelinkedfrom) ) )
5761                         return $this->pingback_error( 48, __( 'The pingback has already been registered.' ) );
5762
5763                 // very stupid, but gives time to the 'from' server to publish !
5764                 sleep(1);
5765
5766                 $remote_ip = preg_replace( '/[^0-9a-fA-F:., ]/', '', $_SERVER['REMOTE_ADDR'] );
5767
5768                 /** This filter is documented in wp-includes/class-http.php */
5769                 $user_agent = apply_filters( 'http_headers_useragent', 'WordPress/' . $GLOBALS['wp_version'] . '; ' . get_bloginfo( 'url' ) );
5770
5771                 // Let's check the remote site
5772                 $http_api_args = array(
5773                         'timeout' => 10,
5774                         'redirection' => 0,
5775                         'limit_response_size' => 153600, // 150 KB
5776                         'user-agent' => "$user_agent; verifying pingback from $remote_ip",
5777                         'headers' => array(
5778                                 'X-Pingback-Forwarded-For' => $remote_ip,
5779                         ),
5780                 );
5781                 $request = wp_safe_remote_get( $pagelinkedfrom, $http_api_args );
5782                 $linea = wp_remote_retrieve_body( $request );
5783
5784                 if ( !$linea )
5785                         return $this->pingback_error( 16, __( 'The source URL does not exist.' ) );
5786
5787                 /**
5788                  * Filter the pingback remote source.
5789                  *
5790                  * @since 2.5.0
5791                  *
5792                  * @param string $linea        Response object for the page linked from.
5793                  * @param string $pagelinkedto URL of the page linked to.
5794                  */
5795                 $linea = apply_filters( 'pre_remote_source', $linea, $pagelinkedto );
5796
5797                 // Work around bug in strip_tags():
5798                 $linea = str_replace('<!DOC', '<DOC', $linea);
5799                 $linea = preg_replace( '/[\r\n\t ]+/', ' ', $linea ); // normalize spaces
5800                 $linea = preg_replace( "/<\/*(h1|h2|h3|h4|h5|h6|p|th|td|li|dt|dd|pre|caption|input|textarea|button|body)[^>]*>/", "\n\n", $linea );
5801
5802                 preg_match('|<title>([^<]*?)</title>|is', $linea, $matchtitle);
5803                 $title = $matchtitle[1];
5804                 if ( empty( $title ) )
5805                         return $this->pingback_error( 32, __('We cannot find a title on that page.' ) );
5806
5807                 $linea = strip_tags( $linea, '<a>' ); // just keep the tag we need
5808
5809                 $p = explode( "\n\n", $linea );
5810
5811                 $preg_target = preg_quote($pagelinkedto, '|');
5812
5813                 foreach ( $p as $para ) {
5814                         if ( strpos($para, $pagelinkedto) !== false ) { // it exists, but is it a link?
5815                                 preg_match("|<a[^>]+?".$preg_target."[^>]*>([^>]+?)</a>|", $para, $context);
5816
5817                                 // If the URL isn't in a link context, keep looking
5818                                 if ( empty($context) )
5819                                         continue;
5820
5821                                 // We're going to use this fake tag to mark the context in a bit
5822                                 // the marker is needed in case the link text appears more than once in the paragraph
5823                                 $excerpt = preg_replace('|\</?wpcontext\>|', '', $para);
5824
5825                                 // prevent really long link text
5826                                 if ( strlen($context[1]) > 100 )
5827                                         $context[1] = substr($context[1], 0, 100) . '&#8230;';
5828
5829                                 $marker = '<wpcontext>'.$context[1].'</wpcontext>';    // set up our marker
5830                                 $excerpt= str_replace($context[0], $marker, $excerpt); // swap out the link for our marker
5831                                 $excerpt = strip_tags($excerpt, '<wpcontext>');        // strip all tags but our context marker
5832                                 $excerpt = trim($excerpt);
5833                                 $preg_marker = preg_quote($marker, '|');
5834                                 $excerpt = preg_replace("|.*?\s(.{0,100}$preg_marker.{0,100})\s.*|s", '$1', $excerpt);
5835                                 $excerpt = strip_tags($excerpt); // YES, again, to remove the marker wrapper
5836                                 break;
5837                         }
5838                 }
5839
5840                 if ( empty($context) ) // Link to target not found
5841                         return $this->pingback_error( 17, __( 'The source URL does not contain a link to the target URL, and so cannot be used as a source.' ) );
5842
5843                 $pagelinkedfrom = str_replace('&', '&amp;', $pagelinkedfrom);
5844
5845                 $context = '[&#8230;] ' . esc_html( $excerpt ) . ' [&#8230;]';
5846                 $pagelinkedfrom = $this->escape( $pagelinkedfrom );
5847
5848                 $comment_post_ID = (int) $post_ID;
5849                 $comment_author = $title;
5850                 $comment_author_email = '';
5851                 $this->escape($comment_author);
5852                 $comment_author_url = $pagelinkedfrom;
5853                 $comment_content = $context;
5854                 $this->escape($comment_content);
5855                 $comment_type = 'pingback';
5856
5857                 $commentdata = compact('comment_post_ID', 'comment_author', 'comment_author_url', 'comment_author_email', 'comment_content', 'comment_type');
5858
5859                 $comment_ID = wp_new_comment($commentdata);
5860
5861                 /**
5862                  * Fires after a post pingback has been sent.
5863                  *
5864                  * @since 0.71
5865                  *
5866                  * @param int $comment_ID Comment ID.
5867                  */
5868                 do_action( 'pingback_post', $comment_ID );
5869
5870                 return sprintf(__('Pingback from %1$s to %2$s registered. Keep the web talking! :-)'), $pagelinkedfrom, $pagelinkedto);
5871         }
5872
5873         /**
5874          * Retrieve array of URLs that pingbacked the given URL.
5875          *
5876          * Specs on http://www.aquarionics.com/misc/archives/blogite/0198.html
5877          *
5878          * @since 1.5.0
5879          *
5880          * @param array $args Method parameters.
5881          * @return array|IXR_Error
5882          */
5883         public function pingback_extensions_getPingbacks($args) {
5884
5885                 global $wpdb;
5886
5887                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
5888                 do_action( 'xmlrpc_call', 'pingback.extensions.getPingbacks' );
5889
5890                 $this->escape($args);
5891
5892                 $url = $args;
5893
5894                 $post_ID = url_to_postid($url);
5895                 if ( !$post_ID ) {
5896                         // We aren't sure that the resource is available and/or pingback enabled
5897                         return $this->pingback_error( 33, __( 'The specified target URL cannot be used as a target. It either doesn&#8217;t exist, or it is not a pingback-enabled resource.' ) );
5898                 }
5899
5900                 $actual_post = get_post($post_ID, ARRAY_A);
5901
5902                 if ( !$actual_post ) {
5903                         // No such post = resource not found
5904                         return $this->pingback_error( 32, __('The specified target URL does not exist.' ) );
5905                 }
5906
5907                 $comments = $wpdb->get_results( $wpdb->prepare("SELECT comment_author_url, comment_content, comment_author_IP, comment_type FROM $wpdb->comments WHERE comment_post_ID = %d", $post_ID) );
5908
5909                 if ( !$comments )
5910                         return array();
5911
5912                 $pingbacks = array();
5913                 foreach ( $comments as $comment ) {
5914                         if ( 'pingback' == $comment->comment_type )
5915                                 $pingbacks[] = $comment->comment_author_url;
5916                 }
5917
5918                 return $pingbacks;
5919         }
5920
5921         /**
5922          * @param integer $code
5923          * @param string $message
5924          */
5925         protected function pingback_error( $code, $message ) {
5926                 /**
5927                  * Filter the XML-RPC pingback error return.
5928                  *
5929                  * @since 3.5.1
5930                  *
5931                  * @param IXR_Error $error An IXR_Error object containing the error code and message.
5932                  */
5933                 return apply_filters( 'xmlrpc_pingback_error', new IXR_Error( $code, $message ) );
5934         }
5935 }