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

   1 <?php
   2 /**
   3  * XML-RPC protocol support for WordPress
   4  *
   5  * @package WordPress
   6  */
   7
   8 /**
   9  * WordPress XMLRPC server implementation.
  10  *
  11  * Implements compatibility for Blogger API, MetaWeblog API, MovableType, and
  12  * pingback. Additional WordPress API for managing comments, pages, posts,
  13  * options, etc.
  14  *
  15  * Since WordPress 2.6.0, WordPress XMLRPC server can be disabled in the
  16  * administration panels.
  17  *
  18  * @package WordPress
  19  * @subpackage Publishing
  20  * @since 1.5.0
  21  */
  22 class wp_xmlrpc_server extends IXR_Server {
  23
  24         /**
  25          * Register all of the XMLRPC methods that XMLRPC server understands.
  26          *
  27          * Sets up server and method property. Passes XMLRPC
  28          * methods through the 'xmlrpc_methods' filter to allow plugins to extend
  29          * or replace XMLRPC methods.
  30          *
  31          * @since 1.5.0
  32          *
  33          * @return wp_xmlrpc_server
  34          */
  35         function __construct() {
  36                 $this->methods = array(
  37                         // WordPress API
  38                         'wp.getUsersBlogs'              => 'this:wp_getUsersBlogs',
  39                         'wp.newPost'                    => 'this:wp_newPost',
  40                         'wp.editPost'                   => 'this:wp_editPost',
  41                         'wp.deletePost'                 => 'this:wp_deletePost',
  42                         'wp.getPost'                    => 'this:wp_getPost',
  43                         'wp.getPosts'                   => 'this:wp_getPosts',
  44                         'wp.newTerm'                    => 'this:wp_newTerm',
  45                         'wp.editTerm'                   => 'this:wp_editTerm',
  46                         'wp.deleteTerm'                 => 'this:wp_deleteTerm',
  47                         'wp.getTerm'                    => 'this:wp_getTerm',
  48                         'wp.getTerms'                   => 'this:wp_getTerms',
  49                         'wp.getTaxonomy'                => 'this:wp_getTaxonomy',
  50                         'wp.getTaxonomies'              => 'this:wp_getTaxonomies',
  51                         'wp.getPage'                    => 'this:wp_getPage',
  52                         'wp.getPages'                   => 'this:wp_getPages',
  53                         'wp.newPage'                    => 'this:wp_newPage',
  54                         'wp.deletePage'                 => 'this:wp_deletePage',
  55                         'wp.editPage'                   => 'this:wp_editPage',
  56                         'wp.getPageList'                => 'this:wp_getPageList',
  57                         'wp.getAuthors'                 => 'this:wp_getAuthors',
  58                         'wp.getCategories'              => 'this:mw_getCategories',             // Alias
  59                         'wp.getTags'                    => 'this:wp_getTags',
  60                         'wp.newCategory'                => 'this:wp_newCategory',
  61                         'wp.deleteCategory'             => 'this:wp_deleteCategory',
  62                         'wp.suggestCategories'  => 'this:wp_suggestCategories',
  63                         'wp.uploadFile'                 => 'this:mw_newMediaObject',    // Alias
  64                         'wp.getCommentCount'    => 'this:wp_getCommentCount',
  65                         'wp.getPostStatusList'  => 'this:wp_getPostStatusList',
  66                         'wp.getPageStatusList'  => 'this:wp_getPageStatusList',
  67                         'wp.getPageTemplates'   => 'this:wp_getPageTemplates',
  68                         'wp.getOptions'                 => 'this:wp_getOptions',
  69                         'wp.setOptions'                 => 'this:wp_setOptions',
  70                         'wp.getComment'                 => 'this:wp_getComment',
  71                         'wp.getComments'                => 'this:wp_getComments',
  72                         'wp.deleteComment'              => 'this:wp_deleteComment',
  73                         'wp.editComment'                => 'this:wp_editComment',
  74                         'wp.newComment'                 => 'this:wp_newComment',
  75                         'wp.getCommentStatusList' => 'this:wp_getCommentStatusList',
  76                         'wp.getMediaItem'               => 'this:wp_getMediaItem',
  77                         'wp.getMediaLibrary'    => 'this:wp_getMediaLibrary',
  78                         'wp.getPostFormats'     => 'this:wp_getPostFormats',
  79                         'wp.getPostType'                => 'this:wp_getPostType',
  80                         'wp.getPostTypes'               => 'this:wp_getPostTypes',
  81
  82                         // Blogger API
  83                         'blogger.getUsersBlogs' => 'this:blogger_getUsersBlogs',
  84                         'blogger.getUserInfo' => 'this:blogger_getUserInfo',
  85                         'blogger.getPost' => 'this:blogger_getPost',
  86                         'blogger.getRecentPosts' => 'this:blogger_getRecentPosts',
  87                         'blogger.getTemplate' => 'this:blogger_getTemplate',
  88                         'blogger.setTemplate' => 'this:blogger_setTemplate',
  89                         'blogger.newPost' => 'this:blogger_newPost',
  90                         'blogger.editPost' => 'this:blogger_editPost',
  91                         'blogger.deletePost' => 'this:blogger_deletePost',
  92
  93                         // MetaWeblog API (with MT extensions to structs)
  94                         'metaWeblog.newPost' => 'this:mw_newPost',
  95                         'metaWeblog.editPost' => 'this:mw_editPost',
  96                         'metaWeblog.getPost' => 'this:mw_getPost',
  97                         'metaWeblog.getRecentPosts' => 'this:mw_getRecentPosts',
  98                         'metaWeblog.getCategories' => 'this:mw_getCategories',
  99                         'metaWeblog.newMediaObject' => 'this:mw_newMediaObject',
 100
 101                         // MetaWeblog API aliases for Blogger API
 102                         // see http://www.xmlrpc.com/stories/storyReader$2460
 103                         'metaWeblog.deletePost' => 'this:blogger_deletePost',
 104                         'metaWeblog.getTemplate' => 'this:blogger_getTemplate',
 105                         'metaWeblog.setTemplate' => 'this:blogger_setTemplate',
 106                         'metaWeblog.getUsersBlogs' => 'this:blogger_getUsersBlogs',
 107
 108                         // MovableType API
 109                         'mt.getCategoryList' => 'this:mt_getCategoryList',
 110                         'mt.getRecentPostTitles' => 'this:mt_getRecentPostTitles',
 111                         'mt.getPostCategories' => 'this:mt_getPostCategories',
 112                         'mt.setPostCategories' => 'this:mt_setPostCategories',
 113                         'mt.supportedMethods' => 'this:mt_supportedMethods',
 114                         'mt.supportedTextFilters' => 'this:mt_supportedTextFilters',
 115                         'mt.getTrackbackPings' => 'this:mt_getTrackbackPings',
 116                         'mt.publishPost' => 'this:mt_publishPost',
 117
 118                         // PingBack
 119                         'pingback.ping' => 'this:pingback_ping',
 120                         'pingback.extensions.getPingbacks' => 'this:pingback_extensions_getPingbacks',
 121
 122                         'demo.sayHello' => 'this:sayHello',
 123                         'demo.addTwoNumbers' => 'this:addTwoNumbers'
 124                 );
 125
 126                 $this->initialise_blog_option_info();
 127                 $this->methods = apply_filters('xmlrpc_methods', $this->methods);
 128         }
 129
 130         function serve_request() {
 131                 $this->IXR_Server($this->methods);
 132         }
 133
 134         /**
 135          * Test XMLRPC API by saying, "Hello!" to client.
 136          *
 137          * @since 1.5.0
 138          *
 139          * @param array $args Method Parameters.
 140          * @return string
 141          */
 142         function sayHello($args) {
 143                 return 'Hello!';
 144         }
 145
 146         /**
 147          * Test XMLRPC API by adding two numbers for client.
 148          *
 149          * @since 1.5.0
 150          *
 151          * @param array $args Method Parameters.
 152          * @return int
 153          */
 154         function addTwoNumbers($args) {
 155                 $number1 = $args[0];
 156                 $number2 = $args[1];
 157                 return $number1 + $number2;
 158         }
 159
 160         /**
 161          * Check user's credentials.
 162          *
 163          * @since 1.5.0
 164          *
 165          * @param string $user_login User's username.
 166          * @param string $user_pass User's password.
 167          * @return bool Whether authentication passed.
 168          * @deprecated use wp_xmlrpc_server::login
 169          * @see wp_xmlrpc_server::login
 170          */
 171         function login_pass_ok($user_login, $user_pass) {
 172                 if ( !get_option( 'enable_xmlrpc' ) ) {
 173                         $this->error = new IXR_Error( 405, sprintf( __( 'XML-RPC services are disabled on this site. An admin user can enable them at %s'),  admin_url('options-writing.php') ) );
 174                         return false;
 175                 }
 176
 177                 if (!user_pass_ok($user_login, $user_pass)) {
 178                         $this->error = new IXR_Error(403, __('Bad login/pass combination.'));
 179                         return false;
 180                 }
 181                 return true;
 182         }
 183
 184         /**
 185          * Log user in.
 186          *
 187          * @since 2.8
 188          *
 189          * @param string $username User's username.
 190          * @param string $password User's password.
 191          * @return mixed WP_User object if authentication passed, false otherwise
 192          */
 193         function login($username, $password) {
 194                 if ( !get_option( 'enable_xmlrpc' ) ) {
 195                         $this->error = new IXR_Error( 405, sprintf( __( 'XML-RPC services are disabled on this site. An admin user can enable them at %s'),  admin_url('options-writing.php') ) );
 196                         return false;
 197                 }
 198
 199                 $user = wp_authenticate($username, $password);
 200
 201                 if (is_wp_error($user)) {
 202                         $this->error = new IXR_Error(403, __('Bad login/pass combination.'));
 203                         return false;
 204                 }
 205
 206                 wp_set_current_user( $user->ID );
 207                 return $user;
 208         }
 209
 210         /**
 211          * Sanitize string or array of strings for database.
 212          *
 213          * @since 1.5.2
 214          *
 215          * @param string|array $array Sanitize single string or array of strings.
 216          * @return string|array Type matches $array and sanitized for the database.
 217          */
 218         function escape(&$array) {
 219                 global $wpdb;
 220
 221                 if (!is_array($array)) {
 222                         return($wpdb->escape($array));
 223                 } else {
 224                         foreach ( (array) $array as $k => $v ) {
 225                                 if ( is_array($v) ) {
 226                                         $this->escape($array[$k]);
 227                                 } else if ( is_object($v) ) {
 228                                         //skip
 229                                 } else {
 230                                         $array[$k] = $wpdb->escape($v);
 231                                 }
 232                         }
 233                 }
 234         }
 235
 236         /**
 237          * Retrieve custom fields for post.
 238          *
 239          * @since 2.5.0
 240          *
 241          * @param int $post_id Post ID.
 242          * @return array Custom fields, if exist.
 243          */
 244         function get_custom_fields($post_id) {
 245                 $post_id = (int) $post_id;
 246
 247                 $custom_fields = array();
 248
 249                 foreach ( (array) has_meta($post_id) as $meta ) {
 250                         // Don't expose protected fields.
 251                         if ( ! current_user_can( 'edit_post_meta', $post_id , $meta['meta_key'] ) )
 252                                 continue;
 253
 254                         $custom_fields[] = array(
 255                                 "id"    => $meta['meta_id'],
 256                                 "key"   => $meta['meta_key'],
 257                                 "value" => $meta['meta_value']
 258                         );
 259                 }
 260
 261                 return $custom_fields;
 262         }
 263
 264         /**
 265          * Set custom fields for post.
 266          *
 267          * @since 2.5.0
 268          *
 269          * @param int $post_id Post ID.
 270          * @param array $fields Custom fields.
 271          */
 272         function set_custom_fields($post_id, $fields) {
 273                 $post_id = (int) $post_id;
 274
 275                 foreach ( (array) $fields as $meta ) {
 276                         if ( isset($meta['id']) ) {
 277                                 $meta['id'] = (int) $meta['id'];
 278                                 $pmeta = get_metadata_by_mid( 'post', $meta['id'] );
 279                                 if ( isset($meta['key']) ) {
 280                                         $meta['key'] = stripslashes( $meta['key'] );
 281                                         if ( $meta['key'] != $pmeta->meta_key )
 282                                                 continue;
 283                                         $meta['value'] = stripslashes_deep( $meta['value'] );
 284                                         if ( current_user_can( 'edit_post_meta', $post_id, $meta['key'] ) )
 285                                                 update_metadata_by_mid( 'post', $meta['id'], $meta['value'] );
 286                                 } elseif ( current_user_can( 'delete_post_meta', $post_id, $pmeta->meta_key ) ) {
 287                                         delete_metadata_by_mid( 'post', $meta['id'] );
 288                                 }
 289                         } elseif ( current_user_can( 'add_post_meta', $post_id, stripslashes( $meta['key'] ) ) ) {
 290                                 add_post_meta( $post_id, $meta['key'], $meta['value'] );
 291                         }
 292                 }
 293         }
 294
 295         /**
 296          * Set up blog options property.
 297          *
 298          * Passes property through 'xmlrpc_blog_options' filter.
 299          *
 300          * @since 2.6.0
 301          */
 302         function initialise_blog_option_info() {
 303                 global $wp_version;
 304
 305                 $this->blog_options = array(
 306                         // Read only options
 307                         'software_name'     => array(
 308                                 'desc'          => __( 'Software Name' ),
 309                                 'readonly'      => true,
 310                                 'value'         => 'WordPress'
 311                         ),
 312                         'software_version'  => array(
 313                                 'desc'          => __( 'Software Version' ),
 314                                 'readonly'      => true,
 315                                 'value'         => $wp_version
 316                         ),
 317                         'blog_url'          => array(
 318                                 'desc'          => __( 'Site URL' ),
 319                                 'readonly'      => true,
 320                                 'option'        => 'siteurl'
 321                         ),
 322                         'image_default_link_type' => array(
 323                                 'desc'          => __( 'Image default link type' ),
 324                                 'readonly'      => true,
 325                                 'option'        => 'image_default_link_type'
 326                         ),
 327                         'image_default_size' => array(
 328                                 'desc'          => __( 'Image default size' ),
 329                                 'readonly'      => true,
 330                                 'option'        => 'image_default_size'
 331                         ),
 332                         'image_default_align' => array(
 333                                 'desc'          => __( 'Image default align' ),
 334                                 'readonly'      => true,
 335                                 'option'        => 'image_default_align'
 336                         ),
 337                         'template'          => array(
 338                                 'desc'          => __( 'Template' ),
 339                                 'readonly'      => true,
 340                                 'option'        => 'template'
 341                         ),
 342                         'stylesheet'        => array(
 343                                 'desc'          => __( 'Stylesheet' ),
 344                                 'readonly'      => true,
 345                                 'option'        => 'stylesheet'
 346                         ),
 347                         'post_thumbnail'    => array(
 348                                 'desc'          => __('Post Thumbnail'),
 349                                 'readonly'      => true,
 350                                 'value'         => current_theme_supports( 'post-thumbnails' )
 351                         ),
 352
 353                         // Updatable options
 354                         'time_zone'         => array(
 355                                 'desc'          => __( 'Time Zone' ),
 356                                 'readonly'      => false,
 357                                 'option'        => 'gmt_offset'
 358                         ),
 359                         'blog_title'        => array(
 360                                 'desc'          => __( 'Site Title' ),
 361                                 'readonly'      => false,
 362                                 'option'        => 'blogname'
 363                         ),
 364                         'blog_tagline'      => array(
 365                                 'desc'          => __( 'Site Tagline' ),
 366                                 'readonly'      => false,
 367                                 'option'        => 'blogdescription'
 368                         ),
 369                         'date_format'       => array(
 370                                 'desc'          => __( 'Date Format' ),
 371                                 'readonly'      => false,
 372                                 'option'        => 'date_format'
 373                         ),
 374                         'time_format'       => array(
 375                                 'desc'          => __( 'Time Format' ),
 376                                 'readonly'      => false,
 377                                 'option'        => 'time_format'
 378                         ),
 379                         'users_can_register' => array(
 380                                 'desc'          => __( 'Allow new users to sign up' ),
 381                                 'readonly'      => false,
 382                                 'option'        => 'users_can_register'
 383                         ),
 384                         'thumbnail_size_w'  => array(
 385                                 'desc'          => __( 'Thumbnail Width' ),
 386                                 'readonly'      => false,
 387                                 'option'        => 'thumbnail_size_w'
 388                         ),
 389                         'thumbnail_size_h'  => array(
 390                                 'desc'          => __( 'Thumbnail Height' ),
 391                                 'readonly'      => false,
 392                                 'option'        => 'thumbnail_size_h'
 393                         ),
 394                         'thumbnail_crop'    => array(
 395                                 'desc'          => __( 'Crop thumbnail to exact dimensions' ),
 396                                 'readonly'      => false,
 397                                 'option'        => 'thumbnail_crop'
 398                         ),
 399                         'medium_size_w'     => array(
 400                                 'desc'          => __( 'Medium size image width' ),
 401                                 'readonly'      => false,
 402                                 'option'        => 'medium_size_w'
 403                         ),
 404                         'medium_size_h'     => array(
 405                                 'desc'          => __( 'Medium size image height' ),
 406                                 'readonly'      => false,
 407                                 'option'        => 'medium_size_h'
 408                         ),
 409                         'large_size_w'      => array(
 410                                 'desc'          => __( 'Large size image width' ),
 411                                 'readonly'      => false,
 412                                 'option'        => 'large_size_w'
 413                         ),
 414                         'large_size_h'      => array(
 415                                 'desc'          => __( 'Large size image height' ),
 416                                 'readonly'      => false,
 417                                 'option'        => 'large_size_h'
 418                         ),
 419                         'default_comment_status' => array(
 420                                 'desc'          => __( 'Allow people to post comments on new articles' ),
 421                                 'readonly'      => false,
 422                                 'option'        => 'default_comment_status'
 423                         ),
 424                         'default_ping_status' => array(
 425                                 'desc'          => __( 'Allow link notifications from other blogs (pingbacks and trackbacks)' ),
 426                                 'readonly'      => false,
 427                                 'option'        => 'default_ping_status'
 428                         )
 429                 );
 430
 431                 $this->blog_options = apply_filters( 'xmlrpc_blog_options', $this->blog_options );
 432         }
 433
 434         /**
 435          * Retrieve the blogs of the user.
 436          *
 437          * @since 2.6.0
 438          *
 439          * @param array $args Method parameters. Contains:
 440          *  - username
 441          *  - password
 442          * @return array. Contains:
 443          *  - 'isAdmin'
 444          *  - 'url'
 445          *  - 'blogid'
 446          *  - 'blogName'
 447          *  - 'xmlrpc' - url of xmlrpc endpoint
 448          */
 449         function wp_getUsersBlogs( $args ) {
 450                 global $current_site;
 451                 // If this isn't on WPMU then just use blogger_getUsersBlogs
 452                 if ( !is_multisite() ) {
 453                         array_unshift( $args, 1 );
 454                         return $this->blogger_getUsersBlogs( $args );
 455                 }
 456
 457                 $this->escape( $args );
 458
 459                 $username = $args[0];
 460                 $password = $args[1];
 461
 462                 if ( !$user = $this->login($username, $password) )
 463                         return $this->error;
 464
 465                 do_action( 'xmlrpc_call', 'wp.getUsersBlogs' );
 466
 467                 $blogs = (array) get_blogs_of_user( $user->ID );
 468                 $struct = array();
 469
 470                 foreach ( $blogs as $blog ) {
 471                         // Don't include blogs that aren't hosted at this site
 472                         if ( $blog->site_id != $current_site->id )
 473                                 continue;
 474
 475                         $blog_id = $blog->userblog_id;
 476                         switch_to_blog($blog_id);
 477                         $is_admin = current_user_can('manage_options');
 478
 479                         $struct[] = array(
 480                                 'isAdmin'               => $is_admin,
 481                                 'url'                   => get_option( 'home' ) . '/',
 482                                 'blogid'                => (string) $blog_id,
 483                                 'blogName'              => get_option( 'blogname' ),
 484                                 'xmlrpc'                => site_url( 'xmlrpc.php' )
 485                         );
 486
 487                         restore_current_blog();
 488                 }
 489
 490                 return $struct;
 491         }
 492
 493         /**
 494          * Checks if the method received at least the minimum number of arguments.
 495          *
 496          * @since 3.4.0
 497          *
 498          * @param string|array $args Sanitize single string or array of strings.
 499          * @param int $count Minimum number of arguments.
 500          * @return boolean if $args contains at least $count arguments.
 501          */
 502         protected function minimum_args( $args, $count ) {
 503                 if ( count( $args ) < $count ) {
 504                         $this->error = new IXR_Error( 400, __( 'Insufficient arguments passed to this XML-RPC method.' ) );
 505                         return false;
 506                 }
 507
 508                 return true;
 509         }
 510
 511         /**
 512          * Prepares taxonomy data for return in an XML-RPC object.
 513          *
 514          * @access protected
 515          *
 516          * @param object $taxonomy The unprepared taxonomy data
 517          * @param array $fields The subset of taxonomy fields to return
 518          * @return array The prepared taxonomy data
 519          */
 520         protected function _prepare_taxonomy( $taxonomy, $fields ) {
 521                 $_taxonomy = array(
 522                         'name' => $taxonomy->name,
 523                         'label' => $taxonomy->label,
 524                         'hierarchical' => (bool) $taxonomy->hierarchical,
 525                         'public' => (bool) $taxonomy->public,
 526                         'show_ui' => (bool) $taxonomy->show_ui,
 527                         '_builtin' => (bool) $taxonomy->_builtin,
 528                 );
 529
 530                 if ( in_array( 'labels', $fields ) )
 531                         $_taxonomy['labels'] = (array) $taxonomy->labels;
 532
 533                 if ( in_array( 'cap', $fields ) )
 534                         $_taxonomy['cap'] = (array) $taxonomy->cap;
 535
 536                 if ( in_array( 'object_type', $fields ) )
 537                         $_taxonomy['object_type'] = array_unique( (array) $taxonomy->object_type );
 538
 539                 return apply_filters( 'xmlrpc_prepare_taxonomy', $_taxonomy, $taxonomy, $fields );
 540         }
 541
 542         /**
 543          * Prepares term data for return in an XML-RPC object.
 544          *
 545          * @access protected
 546          *
 547          * @param array|object $term The unprepared term data
 548          * @return array The prepared term data
 549          */
 550         protected function _prepare_term( $term ) {
 551                 $_term = $term;
 552                 if ( ! is_array( $_term) )
 553                         $_term = get_object_vars( $_term );
 554
 555                 // For Intergers which may be largeer than XMLRPC supports ensure we return strings.
 556                 $_term['term_id'] = strval( $_term['term_id'] );
 557                 $_term['term_group'] = strval( $_term['term_group'] );
 558                 $_term['term_taxonomy_id'] = strval( $_term['term_taxonomy_id'] );
 559                 $_term['parent'] = strval( $_term['parent'] );
 560
 561                 // Count we are happy to return as an Integer because people really shouldn't use Terms that much.
 562                 $_term['count'] = intval( $_term['count'] );
 563
 564                 return apply_filters( 'xmlrpc_prepare_term', $_term, $term );
 565         }
 566
 567         /**
 568          * Convert a WordPress date string to an IXR_Date object.
 569          *
 570          * @access protected
 571          *
 572          * @param string $date
 573          * @return IXR_Date
 574          */
 575         protected function _convert_date( $date ) {
 576                 if ( $date === '0000-00-00 00:00:00' ) {
 577                         return new IXR_Date( '00000000T00:00:00Z' );
 578                 }
 579                 return new IXR_Date( mysql2date( 'Ymd\TH:i:s', $date, false ) );
 580         }
 581
 582         /**
 583          * Convert a WordPress GMT date string to an IXR_Date object.
 584          *
 585          * @access protected
 586          *
 587          * @param string $date_gmt
 588          * @param string $date
 589          * @return IXR_Date
 590          */
 591         protected function _convert_date_gmt( $date_gmt, $date ) {
 592                 if ( $date !== '0000-00-00 00:00:00' && $date_gmt === '0000-00-00 00:00:00' ) {
 593                         return new IXR_Date( get_gmt_from_date( mysql2date( 'Y-m-d H:i:s', $date, false ), 'Ymd\TH:i:s' ) );
 594                 }
 595                 return $this->_convert_date( $date_gmt );
 596         }
 597
 598         /**
 599          * Prepares post data for return in an XML-RPC object.
 600          *
 601          * @access protected
 602          *
 603          * @param array $post The unprepared post data
 604          * @param array $fields The subset of post type fields to return
 605          * @return array The prepared post data
 606          */
 607         protected function _prepare_post( $post, $fields ) {
 608                 // holds the data for this post. built up based on $fields
 609                 $_post = array( 'post_id' => strval( $post['ID'] ) );
 610
 611                 // prepare common post fields
 612                 $post_fields = array(
 613                         'post_title'        => $post['post_title'],
 614                         'post_date'         => $this->_convert_date( $post['post_date'] ),
 615                         'post_date_gmt'     => $this->_convert_date_gmt( $post['post_date_gmt'], $post['post_date'] ),
 616                         'post_modified'     => $this->_convert_date( $post['post_modified'] ),
 617                         'post_modified_gmt' => $this->_convert_date_gmt( $post['post_modified_gmt'], $post['post_modified'] ),
 618                         'post_status'       => $post['post_status'],
 619                         'post_type'         => $post['post_type'],
 620                         'post_name'         => $post['post_name'],
 621                         'post_author'       => $post['post_author'],
 622                         'post_password'     => $post['post_password'],
 623                         'post_excerpt'      => $post['post_excerpt'],
 624                         'post_content'      => $post['post_content'],
 625                         'link'              => post_permalink( $post['ID'] ),
 626                         'comment_status'    => $post['comment_status'],
 627                         'ping_status'       => $post['ping_status'],
 628                         'sticky'            => ( $post['post_type'] === 'post' && is_sticky( $post['ID'] ) ),
 629                 );
 630
 631                 // Thumbnail
 632                 $post_fields['post_thumbnail'] = array();
 633                 $thumbnail_id = get_post_thumbnail_id( $post['ID'] );
 634                 if ( $thumbnail_id ) {
 635                         $thumbnail_size = current_theme_supports('post-thumbnail') ? 'post-thumbnail' : 'thumbnail';
 636                         $post_fields['post_thumbnail'] = $this->_prepare_media_item( get_post( $thumbnail_id ), $thumbnail_size );
 637                 }
 638
 639                 // Consider future posts as published
 640                 if ( $post_fields['post_status'] === 'future' )
 641                         $post_fields['post_status'] = 'publish';
 642
 643                 // Fill in blank post format
 644                 $post_fields['post_format'] = get_post_format( $post['ID'] );
 645                 if ( empty( $post_fields['post_format'] ) )
 646                         $post_fields['post_format'] = 'standard';
 647
 648                 // Merge requested $post_fields fields into $_post
 649                 if ( in_array( 'post', $fields ) ) {
 650                         $_post = array_merge( $_post, $post_fields );
 651                 } else {
 652                         $requested_fields = array_intersect_key( $post_fields, array_flip( $fields ) );
 653                         $_post = array_merge( $_post, $requested_fields );
 654                 }
 655
 656                 $all_taxonomy_fields = in_array( 'taxonomies', $fields );
 657
 658                 if ( $all_taxonomy_fields || in_array( 'terms', $fields ) ) {
 659                         $post_type_taxonomies = get_object_taxonomies( $post['post_type'], 'names' );
 660                         $terms = wp_get_object_terms( $post['ID'], $post_type_taxonomies );
 661                         $_post['terms'] = array();
 662                         foreach ( $terms as $term ) {
 663                                 $_post['terms'][] = $this->_prepare_term( $term );
 664                         }
 665                 }
 666
 667                 if ( in_array( 'custom_fields', $fields ) )
 668                         $_post['custom_fields'] = $this->get_custom_fields( $post['ID'] );
 669
 670                 if ( in_array( 'enclosure', $fields ) ) {
 671                         $_post['enclosure'] = array();
 672                         $enclosures = (array) get_post_meta( $post['ID'], 'enclosure' );
 673                         if ( ! empty( $enclosures ) ) {
 674                                 $encdata = explode( "\n", $enclosures[0] );
 675                                 $_post['enclosure']['url'] = trim( htmlspecialchars( $encdata[0] ) );
 676                                 $_post['enclosure']['length'] = (int) trim( $encdata[1] );
 677                                 $_post['enclosure']['type'] = trim( $encdata[2] );
 678                         }
 679                 }
 680
 681                 return apply_filters( 'xmlrpc_prepare_post', $_post, $post, $fields );
 682         }
 683
 684         /**
 685          * Prepares post data for return in an XML-RPC object.
 686          *
 687          * @access protected
 688          *
 689          * @param object $post_type Post type object
 690          * @param array $fields The subset of post fields to return
 691          * @return array The prepared post type data
 692          */
 693         protected function _prepare_post_type( $post_type, $fields ) {
 694                 $_post_type = array(
 695                         'name' => $post_type->name,
 696                         'label' => $post_type->label,
 697                         'hierarchical' => (bool) $post_type->hierarchical,
 698                         'public' => (bool) $post_type->public,
 699                         'show_ui' => (bool) $post_type->show_ui,
 700                         '_builtin' => (bool) $post_type->_builtin,
 701                         'has_archive' => (bool) $post_type->has_archive,
 702                         'supports' => get_all_post_type_supports( $post_type->name ),
 703                 );
 704
 705                 if ( in_array( 'labels', $fields ) ) {
 706                         $_post_type['labels'] = (array) $post_type->labels;
 707                 }
 708
 709                 if ( in_array( 'cap', $fields ) ) {
 710                         $_post_type['cap'] = (array) $post_type->cap;
 711                         $_post_type['map_meta_cap'] = (bool) $post_type->map_meta_cap;
 712                 }
 713
 714                 if ( in_array( 'menu', $fields ) ) {
 715                         $_post_type['menu_position'] = (int) $post_type->menu_position;
 716                         $_post_type['menu_icon'] = $post_type->menu_icon;
 717                         $_post_type['show_in_menu'] = (bool) $post_type->show_in_menu;
 718                 }
 719
 720                 if ( in_array( 'taxonomies', $fields ) )
 721                         $_post_type['taxonomies'] = get_object_taxonomies( $post_type->name, 'names' );
 722
 723                 return apply_filters( 'xmlrpc_prepare_post_type', $_post_type, $post_type );
 724         }
 725
 726         /**
 727          * Prepares media item data for return in an XML-RPC object.
 728          *
 729          * @access protected
 730          *
 731          * @param object $media_item The unprepared media item data
 732          * @param string $thumbnail_size The image size to use for the thumbnail URL
 733          * @return array The prepared media item data
 734          */
 735         protected function _prepare_media_item( $media_item, $thumbnail_size = 'thumbnail' ) {
 736                 $_media_item = array(
 737                         'attachment_id'    => strval( $media_item->ID ),
 738                         'date_created_gmt' => $this->_convert_date_gmt( $media_item->post_date_gmt, $media_item->post_date ),
 739                         'parent'           => $media_item->post_parent,
 740                         'link'             => wp_get_attachment_url( $media_item->ID ),
 741                         'title'            => $media_item->post_title,
 742                         'caption'          => $media_item->post_excerpt,
 743                         'description'      => $media_item->post_content,
 744                         'metadata'         => wp_get_attachment_metadata( $media_item->ID ),
 745                 );
 746
 747                 $thumbnail_src = image_downsize( $media_item->ID, $thumbnail_size );
 748                 if ( $thumbnail_src )
 749                         $_media_item['thumbnail'] = $thumbnail_src[0];
 750                 else
 751                         $_media_item['thumbnail'] = $_media_item['link'];
 752
 753                 return apply_filters( 'xmlrpc_prepare_media_item', $_media_item, $media_item, $thumbnail_size );
 754         }
 755
 756         /**
 757          * Prepares page data for return in an XML-RPC object.
 758          *
 759          * @access protected
 760          *
 761          * @param object $page The unprepared page data
 762          * @return array The prepared page data
 763          */
 764         protected function _prepare_page( $page ) {
 765                 // Get all of the page content and link.
 766                 $full_page = get_extended( $page->post_content );
 767                 $link = post_permalink( $page->ID );
 768
 769                 // Get info the page parent if there is one.
 770                 $parent_title = "";
 771                 if ( ! empty( $page->post_parent ) ) {
 772                         $parent = get_page( $page->post_parent );
 773                         $parent_title = $parent->post_title;
 774                 }
 775
 776                 // Determine comment and ping settings.
 777                 $allow_comments = comments_open( $page->ID ) ? 1 : 0;
 778                 $allow_pings = pings_open( $page->ID ) ? 1 : 0;
 779
 780                 // Format page date.
 781                 $page_date = $this->_convert_date( $page->post_date );
 782                 $page_date_gmt = $this->_convert_date_gmt( $page->post_date_gmt, $page->post_date );
 783
 784                 // Pull the categories info together.
 785                 $categories = array();
 786                 foreach ( wp_get_post_categories( $page->ID ) as $cat_id ) {
 787                         $categories[] = get_cat_name( $cat_id );
 788                 }
 789
 790                 // Get the author info.
 791                 $author = get_userdata( $page->post_author );
 792
 793                 $page_template = get_page_template_slug( $page->ID );
 794                 if ( empty( $page_template ) )
 795                         $page_template = 'default';
 796
 797                 $_page = array(
 798                         'dateCreated'            => $page_date,
 799                         'userid'                 => $page->post_author,
 800                         'page_id'                => $page->ID,
 801                         'page_status'            => $page->post_status,
 802                         'description'            => $full_page['main'],
 803                         'title'                  => $page->post_title,
 804                         'link'                   => $link,
 805                         'permaLink'              => $link,
 806                         'categories'             => $categories,
 807                         'excerpt'                => $page->post_excerpt,
 808                         'text_more'              => $full_page['extended'],
 809                         'mt_allow_comments'      => $allow_comments,
 810                         'mt_allow_pings'         => $allow_pings,
 811                         'wp_slug'                => $page->post_name,
 812                         'wp_password'            => $page->post_password,
 813                         'wp_author'              => $author->display_name,
 814                         'wp_page_parent_id'      => $page->post_parent,
 815                         'wp_page_parent_title'   => $parent_title,
 816                         'wp_page_order'          => $page->menu_order,
 817                         'wp_author_id'           => (string) $author->ID,
 818                         'wp_author_display_name' => $author->display_name,
 819                         'date_created_gmt'       => $page_date_gmt,
 820                         'custom_fields'          => $this->get_custom_fields( $page->ID ),
 821                         'wp_page_template'       => $page_template
 822                 );
 823
 824                 return apply_filters( 'xmlrpc_prepare_page', $_page, $page );
 825         }
 826
 827         /**
 828          * Prepares comment data for return in an XML-RPC object.
 829          *
 830          * @access protected
 831          *
 832          * @param object $comment The unprepared comment data
 833          * @return array The prepared comment data
 834          */
 835         protected function _prepare_comment( $comment ) {
 836                 // Format page date.
 837                 $comment_date = $this->_convert_date( $comment->comment_date );
 838                 $comment_date_gmt = $this->_convert_date_gmt( $comment->comment_date_gmt, $comment->comment_date );
 839
 840                 if ( '0' == $comment->comment_approved )
 841                         $comment_status = 'hold';
 842                 else if ( 'spam' == $comment->comment_approved )
 843                         $comment_status = 'spam';
 844                 else if ( '1' == $comment->comment_approved )
 845                         $comment_status = 'approve';
 846                 else
 847                         $comment_status = $comment->comment_approved;
 848
 849                 $_comment = array(
 850                         'date_created_gmt' => $comment_date_gmt,
 851                         'user_id'          => $comment->user_id,
 852                         'comment_id'       => $comment->comment_ID,
 853                         'parent'           => $comment->comment_parent,
 854                         'status'           => $comment_status,
 855                         'content'          => $comment->comment_content,
 856                         'link'             => get_comment_link($comment),
 857                         'post_id'          => $comment->comment_post_ID,
 858                         'post_title'       => get_the_title($comment->comment_post_ID),
 859                         'author'           => $comment->comment_author,
 860                         'author_url'       => $comment->comment_author_url,
 861                         'author_email'     => $comment->comment_author_email,
 862                         'author_ip'        => $comment->comment_author_IP,
 863                         'type'             => $comment->comment_type,
 864                 );
 865
 866                 return apply_filters( 'xmlrpc_prepare_comment', $_comment, $comment );
 867         }
 868
 869         /**
 870          * Create a new post for any registered post type.
 871          *
 872          * @since 3.4.0
 873          *
 874          * @param array $args Method parameters. Contains:
 875          *  - int     $blog_id
 876          *  - string  $username
 877          *  - string  $password
 878          *  - array   $content_struct
 879          *      $content_struct can contain:
 880          *      - post_type (default: 'post')
 881          *      - post_status (default: 'draft')
 882          *      - post_title
 883          *      - post_author
 884          *      - post_exerpt
 885          *      - post_content
 886          *      - post_date_gmt | post_date
 887          *      - post_format
 888          *      - post_password
 889          *      - comment_status - can be 'open' | 'closed'
 890          *      - ping_status - can be 'open' | 'closed'
 891          *      - sticky
 892          *      - post_thumbnail - ID of a media item to use as the post thumbnail/featured image
 893          *      - custom_fields - array, with each element containing 'key' and 'value'
 894          *      - terms - array, with taxonomy names as keys and arrays of term IDs as values
 895          *      - terms_names - array, with taxonomy names as keys and arrays of term names as values
 896          *      - enclosure
 897          *      - any other fields supported by wp_insert_post()
 898          * @return string post_id
 899          */
 900         function wp_newPost( $args ) {
 901                 if ( ! $this->minimum_args( $args, 4 ) )
 902                         return $this->error;
 903
 904                 $this->escape( $args );
 905
 906                 $blog_id        = (int) $args[0];
 907                 $username       = $args[1];
 908                 $password       = $args[2];
 909                 $content_struct = $args[3];
 910
 911                 if ( ! $user = $this->login( $username, $password ) )
 912                         return $this->error;
 913
 914                 do_action( 'xmlrpc_call', 'wp.newPost' );
 915
 916                 unset( $content_struct['ID'] );
 917
 918                 return $this->_insert_post( $user, $content_struct );
 919         }
 920
 921         /**
 922          * Helper method for filtering out elements from an array.
 923          *
 924          * @since 3.4.0
 925          *
 926          * @param int $count Number to compare to one.
 927          */
 928         private function _is_greater_than_one( $count ) {
 929                 return $count > 1;
 930         }
 931
 932         /**
 933          * Helper method for wp_newPost and wp_editPost, containing shared logic.
 934          *
 935          * @since 3.4.0
 936          * @uses wp_insert_post()
 937          *
 938          * @param WP_User $user The post author if post_author isn't set in $content_struct.
 939          * @param array $content_struct Post data to insert.
 940          */
 941         protected function _insert_post( $user, $content_struct ) {
 942                 $defaults = array( 'post_status' => 'draft', 'post_type' => 'post', 'post_author' => 0,
 943                         'post_password' => '', 'post_excerpt' => '', 'post_content' => '', 'post_title' => '' );
 944
 945                 $post_data = wp_parse_args( $content_struct, $defaults );
 946
 947                 $post_type = get_post_type_object( $post_data['post_type'] );
 948                 if ( ! $post_type )
 949                         return new IXR_Error( 403, __( 'Invalid post type' ) );
 950
 951                 $update = ! empty( $post_data['ID'] );
 952
 953                 if ( $update ) {
 954                         if ( ! get_post( $post_data['ID'] ) )
 955                                 return new IXR_Error( 401, __( 'Invalid post ID.' ) );
 956                         if ( ! current_user_can( $post_type->cap->edit_post, $post_data['ID'] ) )
 957                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit this post.' ) );
 958                         if ( $post_data['post_type'] != get_post_type( $post_data['ID'] ) )
 959                                 return new IXR_Error( 401, __( 'The post type may not be changed.' ) );
 960                 } else {
 961                         if ( ! current_user_can( $post_type->cap->edit_posts ) )
 962                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to post on this site.' ) );
 963                 }
 964
 965                 switch ( $post_data['post_status'] ) {
 966                         case 'draft':
 967                         case 'pending':
 968                                 break;
 969                         case 'private':
 970                                 if ( ! current_user_can( $post_type->cap->publish_posts ) )
 971                                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to create private posts in this post type' ) );
 972                                 break;
 973                         case 'publish':
 974                         case 'future':
 975                                 if ( ! current_user_can( $post_type->cap->publish_posts ) )
 976                                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to publish posts in this post type' ) );
 977                                 break;
 978                         default:
 979                                 $post_data['post_status'] = 'draft';
 980                         break;
 981                 }
 982
 983                 if ( ! empty( $post_data['post_password'] ) && ! current_user_can( $post_type->cap->publish_posts ) )
 984                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to create password protected posts in this post type' ) );
 985
 986                 $post_data['post_author'] = absint( $post_data['post_author'] );
 987                 if ( ! empty( $post_data['post_author'] ) && $post_data['post_author'] != $user->ID ) {
 988                         if ( ! current_user_can( $post_type->cap->edit_others_posts ) )
 989                                 return new IXR_Error( 401, __( 'You are not allowed to create posts as this user.' ) );
 990
 991                         $author = get_userdata( $post_data['post_author'] );
 992
 993                         if ( ! $author )
 994                                 return new IXR_Error( 404, __( 'Invalid author ID.' ) );
 995                 } else {
 996                         $post_data['post_author'] = $user->ID;
 997                 }
 998
 999                 if ( isset( $post_data['comment_status'] ) && $post_data['comment_status'] != 'open' && $post_data['comment_status'] != 'closed' )
1000                         unset( $post_data['comment_status'] );
1001
1002                 if ( isset( $post_data['ping_status'] ) && $post_data['ping_status'] != 'open' && $post_data['ping_status'] != 'closed' )
1003                         unset( $post_data['ping_status'] );
1004
1005                 // Do some timestamp voodoo
1006                 if ( ! empty( $post_data['post_date_gmt'] ) ) {
1007                         // We know this is supposed to be GMT, so we're going to slap that Z on there by force
1008                         $dateCreated = rtrim( $post_data['post_date_gmt']->getIso(), 'Z' ) . 'Z';
1009                 } elseif ( ! empty( $post_data['post_date'] ) ) {
1010                         $dateCreated = $post_data['post_date']->getIso();
1011                 }
1012
1013                 if ( ! empty( $dateCreated ) ) {
1014                         $post_data['post_date'] = get_date_from_gmt( iso8601_to_datetime( $dateCreated ) );
1015                         $post_data['post_date_gmt'] = iso8601_to_datetime( $dateCreated, 'GMT' );
1016                 }
1017
1018                 if ( ! isset( $post_data['ID'] ) )
1019                         $post_data['ID'] = get_default_post_to_edit( $post_data['post_type'], true )->ID;
1020                 $post_ID = $post_data['ID'];
1021
1022                 if ( $post_data['post_type'] == 'post' ) {
1023                         // Private and password-protected posts cannot be stickied.
1024                         if ( $post_data['post_status'] == 'private' || ! empty( $post_data['post_password'] ) ) {
1025                                 // Error if the client tried to stick the post, otherwise, silently unstick.
1026                                 if ( ! empty( $post_data['sticky'] ) )
1027                                         return new IXR_Error( 401, __( 'Sorry, you cannot stick a private post.' ) );
1028                                 if ( $update )
1029                                         unstick_post( $post_ID );
1030                         } elseif ( isset( $post_data['sticky'] ) )  {
1031                                 if ( ! current_user_can( $post_type->cap->edit_others_posts ) )
1032                                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to stick this post.' ) );
1033                                 if ( $post_data['sticky'] )
1034                                         stick_post( $post_ID );
1035                                 else
1036                                         unstick_post( $post_ID );
1037                         }
1038                 }
1039
1040                 if ( isset( $post_data['post_thumbnail'] ) ) {
1041                         // empty value deletes, non-empty value adds/updates
1042                         if ( ! $post_data['post_thumbnail'] )
1043                                 delete_post_thumbnail( $post_ID );
1044                         elseif ( ! set_post_thumbnail( $post_ID, $post_data['post_thumbnail'] ) )
1045                                         return new IXR_Error( 404, __( 'Invalid attachment ID.' ) );
1046                         unset( $content_struct['post_thumbnail'] );
1047                 }
1048
1049                 if ( isset( $post_data['custom_fields'] ) )
1050                         $this->set_custom_fields( $post_ID, $post_data['custom_fields'] );
1051
1052                 if ( isset( $post_data['terms'] ) || isset( $post_data['terms_names'] ) ) {
1053                         $post_type_taxonomies = get_object_taxonomies( $post_data['post_type'], 'objects' );
1054
1055                         // accumulate term IDs from terms and terms_names
1056                         $terms = array();
1057
1058                         // first validate the terms specified by ID
1059                         if ( isset( $post_data['terms'] ) && is_array( $post_data['terms'] ) ) {
1060                                 $taxonomies = array_keys( $post_data['terms'] );
1061
1062                                 // validating term ids
1063                                 foreach ( $taxonomies as $taxonomy ) {
1064                                         if ( ! array_key_exists( $taxonomy , $post_type_taxonomies ) )
1065                                                 return new IXR_Error( 401, __( 'Sorry, one of the given taxonomies is not supported by the post type.' ) );
1066
1067                                         if ( ! current_user_can( $post_type_taxonomies[$taxonomy]->cap->assign_terms ) )
1068                                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to assign a term to one of the given taxonomies.' ) );
1069
1070                                         $term_ids = $post_data['terms'][$taxonomy];
1071                                         foreach ( $term_ids as $term_id ) {
1072                                                 $term = get_term_by( 'id', $term_id, $taxonomy );
1073
1074                                                 if ( ! $term )
1075                                                         return new IXR_Error( 403, __( 'Invalid term ID' ) );
1076
1077                                                 $terms[$taxonomy][] = (int) $term_id;
1078                                         }
1079                                 }
1080                         }
1081
1082                         // now validate terms specified by name
1083                         if ( isset( $post_data['terms_names'] ) && is_array( $post_data['terms_names'] ) ) {
1084                                 $taxonomies = array_keys( $post_data['terms_names'] );
1085
1086                                 foreach ( $taxonomies as $taxonomy ) {
1087                                         if ( ! array_key_exists( $taxonomy , $post_type_taxonomies ) )
1088                                                 return new IXR_Error( 401, __( 'Sorry, one of the given taxonomies is not supported by the post type.' ) );
1089
1090                                         if ( ! current_user_can( $post_type_taxonomies[$taxonomy]->cap->assign_terms ) )
1091                                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to assign a term to one of the given taxonomies.' ) );
1092
1093                                         // for hierarchical taxonomies, we can't assign a term when multiple terms in the hierarchy share the same name
1094                                         $ambiguous_terms = array();
1095                                         if ( is_taxonomy_hierarchical( $taxonomy ) ) {
1096                                                 $tax_term_names = get_terms( $taxonomy, array( 'fields' => 'names', 'hide_empty' => false ) );
1097
1098                                                 // count the number of terms with the same name
1099                                                 $tax_term_names_count = array_count_values( $tax_term_names );
1100
1101                                                 // filter out non-ambiguous term names
1102                                                 $ambiguous_tax_term_counts = array_filter( $tax_term_names_count, array( $this, '_is_greater_than_one') );
1103
1104                                                 $ambiguous_terms = array_keys( $ambiguous_tax_term_counts );
1105                                         }
1106
1107                                         $term_names = $post_data['terms_names'][$taxonomy];
1108                                         foreach ( $term_names as $term_name ) {
1109                                                 if ( in_array( $term_name, $ambiguous_terms ) )
1110                                                         return new IXR_Error( 401, __( 'Ambiguous term name used in a hierarchical taxonomy. Please use term ID instead.' ) );
1111
1112                                                 $term = get_term_by( 'name', $term_name, $taxonomy );
1113
1114                                                 if ( ! $term ) {
1115                                                         // term doesn't exist, so check that the user is allowed to create new terms
1116                                                         if ( ! current_user_can( $post_type_taxonomies[$taxonomy]->cap->edit_terms ) )
1117                                                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to add a term to one of the given taxonomies.' ) );
1118
1119                                                         // create the new term
1120                                                         $term_info = wp_insert_term( $term_name, $taxonomy );
1121                                                         if ( is_wp_error( $term_info ) )
1122                                                                 return new IXR_Error( 500, $term_info->get_error_message() );
1123
1124                                                         $terms[$taxonomy][] = (int) $term_info['term_id'];
1125                                                 } else {
1126                                                         $terms[$taxonomy][] = (int) $term->term_id;
1127                                                 }
1128                                         }
1129                                 }
1130                         }
1131
1132                         $post_data['tax_input'] = $terms;
1133                         unset( $post_data['terms'], $post_data['terms_names'] );
1134                 } else {
1135                         // do not allow direct submission of 'tax_input', clients must use 'terms' and/or 'terms_names'
1136                         unset( $post_data['tax_input'], $post_data['post_category'], $post_data['tags_input'] );
1137                 }
1138
1139                 if ( isset( $post_data['post_format'] ) ) {
1140                         $format = set_post_format( $post_ID, $post_data['post_format'] );
1141
1142                         if ( is_wp_error( $format ) )
1143                                 return new IXR_Error( 500, $format->get_error_message() );
1144
1145                         unset( $post_data['post_format'] );
1146                 }
1147
1148                 // Handle enclosures
1149                 $enclosure = isset( $post_data['enclosure'] ) ? $post_data['enclosure'] : null;
1150                 $this->add_enclosure_if_new( $post_ID, $enclosure );
1151
1152                 $this->attach_uploads( $post_ID, $post_data['post_content'] );
1153
1154                 $post_data = apply_filters( 'xmlrpc_wp_insert_post_data', $post_data, $content_struct );
1155
1156                 $post_ID = wp_insert_post( $post_data, true );
1157                 if ( is_wp_error( $post_ID ) )
1158                         return new IXR_Error( 500, $post_ID->get_error_message() );
1159
1160                 if ( ! $post_ID )
1161                         return new IXR_Error( 401, __( 'Sorry, your entry could not be posted. Something wrong happened.' ) );
1162
1163                 return strval( $post_ID );
1164         }
1165
1166         /**
1167          * Edit a post for any registered post type.
1168          *
1169          * The $content_struct parameter only needs to contain fields that
1170          * should be changed. All other fields will retain their existing values.
1171          *
1172          * @since 3.4.0
1173          *
1174          * @param array $args Method parameters. Contains:
1175          *  - int     $blog_id
1176          *  - string  $username
1177          *  - string  $password
1178          *  - int     $post_id
1179          *  - array   $content_struct
1180          * @return true on success
1181          */
1182         function wp_editPost( $args ) {
1183                 if ( ! $this->minimum_args( $args, 5 ) )
1184                         return $this->error;
1185
1186                 $this->escape( $args );
1187
1188                 $blog_id        = (int) $args[0];
1189                 $username       = $args[1];
1190                 $password       = $args[2];
1191                 $post_id        = (int) $args[3];
1192                 $content_struct = $args[4];
1193
1194                 if ( ! $user = $this->login( $username, $password ) )
1195                         return $this->error;
1196
1197                 do_action( 'xmlrpc_call', 'wp.editPost' );
1198
1199                 $post = get_post( $post_id, ARRAY_A );
1200
1201                 if ( empty( $post['ID'] ) )
1202                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
1203
1204                 // convert the date field back to IXR form
1205                 $post['post_date'] = $this->_convert_date( $post['post_date'] );
1206
1207                 // ignore the existing GMT date if it is empty or a non-GMT date was supplied in $content_struct,
1208                 // since _insert_post will ignore the non-GMT date if the GMT date is set
1209                 if ( $post['post_date_gmt'] == '0000-00-00 00:00:00' || isset( $content_struct['post_date'] ) )
1210                         unset( $post['post_date_gmt'] );
1211                 else
1212                         $post['post_date_gmt'] = $this->_convert_date( $post['post_date_gmt'] );
1213
1214                 $this->escape( $post );
1215                 $merged_content_struct = array_merge( $post, $content_struct );
1216
1217                 $retval = $this->_insert_post( $user, $merged_content_struct );
1218                 if ( $retval instanceof IXR_Error )
1219                         return $retval;
1220
1221                 return true;
1222         }
1223
1224         /**
1225          * Delete a post for any registered post type.
1226          *
1227          * @since 3.4.0
1228          *
1229          * @uses wp_delete_post()
1230          * @param array $args Method parameters. Contains:
1231          *  - int     $blog_id
1232          *  - string  $username
1233          *  - string  $password
1234          *  - int     $post_id
1235          * @return true on success
1236          */
1237         function wp_deletePost( $args ) {
1238                 if ( ! $this->minimum_args( $args, 4 ) )
1239                         return $this->error;
1240
1241                 $this->escape( $args );
1242
1243                 $blog_id    = (int) $args[0];
1244                 $username   = $args[1];
1245                 $password   = $args[2];
1246                 $post_id    = (int) $args[3];
1247
1248                 if ( ! $user = $this->login( $username, $password ) )
1249                         return $this->error;
1250
1251                 do_action( 'xmlrpc_call', 'wp.deletePost' );
1252
1253                 $post = wp_get_single_post( $post_id, ARRAY_A );
1254                 if ( empty( $post['ID'] ) )
1255                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
1256
1257                 $post_type = get_post_type_object( $post['post_type'] );
1258                 if ( ! current_user_can( $post_type->cap->delete_post, $post_id ) )
1259                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to delete this post.' ) );
1260
1261                 $result = wp_delete_post( $post_id );
1262
1263                 if ( ! $result )
1264                         return new IXR_Error( 500, __( 'The post cannot be deleted.' ) );
1265
1266                 return true;
1267         }
1268
1269         /**
1270          * Retrieve a post.
1271          *
1272          * @since 3.4.0
1273          *
1274          * The optional $fields parameter specifies what fields will be included
1275          * in the response array. This should be a list of field names. 'post_id' will
1276          * always be included in the response regardless of the value of $fields.
1277          *
1278          * Instead of, or in addition to, individual field names, conceptual group
1279          * names can be used to specify multiple fields. The available conceptual
1280          * groups are 'post' (all basic fields), 'taxonomies', 'custom_fields',
1281          * and 'enclosure'.
1282          *
1283          * @uses wp_get_single_post()
1284          * @param array $args Method parameters. Contains:
1285          *  - int     $post_id
1286          *  - string  $username
1287          *  - string  $password
1288          *  - array   $fields optional
1289          * @return array contains (based on $fields parameter):
1290          *  - 'post_id'
1291          *  - 'post_title'
1292          *  - 'post_date'
1293          *  - 'post_date_gmt'
1294          *  - 'post_modified'
1295          *  - 'post_modified_gmt'
1296          *  - 'post_status'
1297          *  - 'post_type'
1298          *  - 'post_name'
1299          *  - 'post_author'
1300          *  - 'post_password'
1301          *  - 'post_excerpt'
1302          *  - 'post_content'
1303          *  - 'link'
1304          *  - 'comment_status'
1305          *  - 'ping_status'
1306          *  - 'sticky'
1307          *  - 'custom_fields'
1308          *  - 'terms'
1309          *  - 'categories'
1310          *  - 'tags'
1311          *  - 'enclosure'
1312          */
1313         function wp_getPost( $args ) {
1314                 if ( ! $this->minimum_args( $args, 4 ) )
1315                         return $this->error;
1316
1317                 $this->escape( $args );
1318
1319                 $blog_id            = (int) $args[0];
1320                 $username           = $args[1];
1321                 $password           = $args[2];
1322                 $post_id            = (int) $args[3];
1323
1324                 if ( isset( $args[4] ) )
1325                         $fields = $args[4];
1326                 else
1327                         $fields = apply_filters( 'xmlrpc_default_post_fields', array( 'post', 'terms', 'custom_fields' ), 'wp.getPost' );
1328
1329                 if ( ! $user = $this->login( $username, $password ) )
1330                         return $this->error;
1331
1332                 do_action( 'xmlrpc_call', 'wp.getPost' );
1333
1334                 $post = wp_get_single_post( $post_id, ARRAY_A );
1335
1336                 if ( empty( $post['ID'] ) )
1337                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
1338
1339                 $post_type = get_post_type_object( $post['post_type'] );
1340                 if ( ! current_user_can( $post_type->cap->edit_posts, $post_id ) )
1341                         return new IXR_Error( 401, __( 'Sorry, you cannot edit this post.' ) );
1342
1343                 return $this->_prepare_post( $post, $fields );
1344         }
1345
1346         /**
1347          * Retrieve posts.
1348          *
1349          * @since 3.4.0
1350          *
1351          * The optional $filter parameter modifies the query used to retrieve posts.
1352          * Accepted keys are 'post_type', 'post_status', 'number', 'offset',
1353          * 'orderby', and 'order'.
1354          *
1355          * The optional $fields parameter specifies what fields will be included
1356          * in the response array.
1357          *
1358          * @uses wp_get_recent_posts()
1359          * @see wp_getPost() for more on $fields
1360          * @see get_posts() for more on $filter values
1361          *
1362          * @param array $args Method parameters. Contains:
1363          *  - int     $blog_id
1364          *  - string  $username
1365          *  - string  $password
1366          *  - array   $filter optional
1367          *  - array   $fields optional
1368          * @return array contains a collection of posts.
1369          */
1370         function wp_getPosts( $args ) {
1371                 if ( ! $this->minimum_args( $args, 3 ) )
1372                         return $this->error;
1373
1374                 $this->escape( $args );
1375
1376                 $blog_id    = (int) $args[0];
1377                 $username   = $args[1];
1378                 $password   = $args[2];
1379                 $filter     = isset( $args[3] ) ? $args[3] : array();
1380
1381                 if ( isset( $args[4] ) )
1382                         $fields = $args[4];
1383                 else
1384                         $fields = apply_filters( 'xmlrpc_default_post_fields', array( 'post', 'terms', 'custom_fields' ), 'wp.getPosts' );
1385
1386                 if ( ! $user = $this->login( $username, $password ) )
1387                         return $this->error;
1388
1389                 do_action( 'xmlrpc_call', 'wp.getPosts' );
1390
1391                 $query = array();
1392
1393                 if ( isset( $filter['post_type'] ) ) {
1394                         $post_type = get_post_type_object( $filter['post_type'] );
1395                         if ( ! ( (bool) $post_type ) )
1396                                 return new IXR_Error( 403, __( 'The post type specified is not valid' ) );
1397
1398                         if ( ! current_user_can( $post_type->cap->edit_posts ) )
1399                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit posts in this post type' ));
1400
1401                         $query['post_type'] = $filter['post_type'];
1402                 }
1403
1404                 if ( isset( $filter['post_status'] ) )
1405                         $query['post_status'] = $filter['post_status'];
1406
1407                 if ( isset( $filter['number'] ) )
1408                         $query['numberposts'] = absint( $filter['number'] );
1409
1410                 if ( isset( $filter['offset'] ) )
1411                         $query['offset'] = absint( $filter['offset'] );
1412
1413                 if ( isset( $filter['orderby'] ) ) {
1414                         $query['orderby'] = $filter['orderby'];
1415
1416                         if ( isset( $filter['order'] ) )
1417                                 $query['order'] = $filter['order'];
1418                 }
1419
1420                 $posts_list = wp_get_recent_posts( $query );
1421
1422                 if ( ! $posts_list )
1423                         return array();
1424
1425                 // holds all the posts data
1426                 $struct = array();
1427
1428                 foreach ( $posts_list as $post ) {
1429                         $post_type = get_post_type_object( $post['post_type'] );
1430                         if ( ! current_user_can( $post_type->cap->edit_posts, $post['ID'] ) )
1431                                 continue;
1432
1433                         $struct[] = $this->_prepare_post( $post, $fields );
1434                 }
1435
1436                 return $struct;
1437         }
1438
1439         /**
1440          * Create a new term.
1441          *
1442          * @since 3.4.0
1443          *
1444          * @uses wp_insert_term()
1445          * @param array $args Method parameters. Contains:
1446          *  - int     $blog_id
1447          *  - string  $username
1448          *  - string  $password
1449          *  - array   $content_struct
1450          *      The $content_struct must contain:
1451          *      - 'name'
1452          *      - 'taxonomy'
1453          *      Also, it can optionally contain:
1454          *      - 'parent'
1455          *      - 'description'
1456          *      - 'slug'
1457          * @return string term_id
1458          */
1459         function wp_newTerm( $args ) {
1460                 if ( ! $this->minimum_args( $args, 4 ) )
1461                         return $this->error;
1462
1463                 $this->escape( $args );
1464
1465                 $blog_id            = (int) $args[0];
1466                 $username           = $args[1];
1467                 $password           = $args[2];
1468                 $content_struct     = $args[3];
1469
1470                 if ( ! $user = $this->login( $username, $password ) )
1471                         return $this->error;
1472
1473                 do_action( 'xmlrpc_call', 'wp.newTerm' );
1474
1475                 if ( ! taxonomy_exists( $content_struct['taxonomy'] ) )
1476                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
1477
1478                 $taxonomy = get_taxonomy( $content_struct['taxonomy'] );
1479
1480                 if ( ! current_user_can( $taxonomy->cap->manage_terms ) )
1481                         return new IXR_Error( 401, __( 'You are not allowed to create terms in this taxonomy.' ) );
1482
1483                 $taxonomy = (array) $taxonomy;
1484
1485                 // hold the data of the term
1486                 $term_data = array();
1487
1488                 $term_data['name'] = trim( $content_struct['name'] );
1489                 if ( empty( $term_data['name'] ) )
1490                         return new IXR_Error( 403, __( 'The term name cannot be empty.' ) );
1491
1492                 if ( isset( $content_struct['parent'] ) ) {
1493                         if ( ! $taxonomy['hierarchical'] )
1494                                 return new IXR_Error( 403, __( 'This taxonomy is not hierarchical.' ) );
1495
1496                         $parent_term_id = (int) $content_struct['parent'];
1497                         $parent_term = get_term( $parent_term_id , $taxonomy['name'] );
1498
1499                         if ( is_wp_error( $parent_term ) )
1500                                 return new IXR_Error( 500, $parent_term->get_error_message() );
1501
1502                         if ( ! $parent_term )
1503                                 return new IXR_Error( 403, __( 'Parent term does not exist.' ) );
1504
1505                         $term_data['parent'] = $content_struct['parent'];
1506                 }
1507
1508                 if ( isset( $content_struct['description'] ) )
1509                         $term_data['description'] = $content_struct['description'];
1510
1511                 if ( isset( $content_struct['slug'] ) )
1512                         $term_data['slug'] = $content_struct['slug'];
1513
1514                 $term = wp_insert_term( $term_data['name'] , $taxonomy['name'] , $term_data );
1515
1516                 if ( is_wp_error( $term ) )
1517                         return new IXR_Error( 500, $term->get_error_message() );
1518
1519                 if ( ! $term )
1520                         return new IXR_Error( 500, __( 'Sorry, your term could not be created. Something wrong happened.' ) );
1521
1522                 return strval( $term['term_id'] );
1523         }
1524
1525         /**
1526          * Edit a term.
1527          *
1528          * @since 3.4.0
1529          *
1530          * @uses wp_update_term()
1531          * @param array $args Method parameters. Contains:
1532          *  - int     $blog_id
1533          *  - string  $username
1534          *  - string  $password
1535          *  - string  $term_id
1536          *  - array   $content_struct
1537          *      The $content_struct must contain:
1538          *      - 'taxonomy'
1539          *      Also, it can optionally contain:
1540          *      - 'name'
1541          *      - 'parent'
1542          *      - 'description'
1543          *      - 'slug'
1544          * @return bool True, on success.
1545          */
1546         function wp_editTerm( $args ) {
1547                 if ( ! $this->minimum_args( $args, 5 ) )
1548                         return $this->error;
1549
1550                 $this->escape( $args );
1551
1552                 $blog_id            = (int) $args[0];
1553                 $username           = $args[1];
1554                 $password           = $args[2];
1555                 $term_id            = (int) $args[3];
1556                 $content_struct     = $args[4];
1557
1558                 if ( ! $user = $this->login( $username, $password ) )
1559                         return $this->error;
1560
1561                 do_action( 'xmlrpc_call', 'wp.editTerm' );
1562
1563                 if ( ! taxonomy_exists( $content_struct['taxonomy'] ) )
1564                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
1565
1566                 $taxonomy = get_taxonomy( $content_struct['taxonomy'] );
1567
1568                 if ( ! current_user_can( $taxonomy->cap->edit_terms ) )
1569                         return new IXR_Error( 401, __( 'You are not allowed to edit terms in this taxonomy.' ) );
1570
1571                 $taxonomy = (array) $taxonomy;
1572
1573                 // hold the data of the term
1574                 $term_data = array();
1575
1576                 $term = get_term( $term_id , $content_struct['taxonomy'] );
1577
1578                 if ( is_wp_error( $term ) )
1579                         return new IXR_Error( 500, $term->get_error_message() );
1580
1581                 if ( ! $term )
1582                         return new IXR_Error( 404, __( 'Invalid term ID' ) );
1583
1584                 if ( isset( $content_struct['name'] ) ) {
1585                         $term_data['name'] = trim( $content_struct['name'] );
1586
1587                         if ( empty( $term_data['name'] ) )
1588                                 return new IXR_Error( 403, __( 'The term name cannot be empty.' ) );
1589                 }
1590
1591                 if ( isset( $content_struct['parent'] ) ) {
1592                         if ( ! $taxonomy['hierarchical'] )
1593                                 return new IXR_Error( 403, __( "This taxonomy is not hierarchical so you can't set a parent." ) );
1594
1595                         $parent_term_id = (int) $content_struct['parent'];
1596                         $parent_term = get_term( $parent_term_id , $taxonomy['name'] );
1597
1598                         if ( is_wp_error( $parent_term ) )
1599                                 return new IXR_Error( 500, $parent_term->get_error_message() );
1600
1601                         if ( ! $parent_term )
1602                                 return new IXR_Error( 403, __( 'Parent term does not exist.' ) );
1603
1604                         $term_data['parent'] = $content_struct['parent'];
1605                 }
1606
1607                 if ( isset( $content_struct['description'] ) )
1608                         $term_data['description'] = $content_struct['description'];
1609
1610                 if ( isset( $content_struct['slug'] ) )
1611                         $term_data['slug'] = $content_struct['slug'];
1612
1613                 $term = wp_update_term( $term_id , $taxonomy['name'] , $term_data );
1614
1615                 if ( is_wp_error( $term ) )
1616                         return new IXR_Error( 500, $term->get_error_message() );
1617
1618                 if ( ! $term )
1619                         return new IXR_Error( 500, __( 'Sorry, editing the term failed.' ) );
1620
1621                 return true;
1622         }
1623
1624         /**
1625          * Delete a term.
1626          *
1627          * @since 3.4.0
1628          *
1629          * @uses wp_delete_term()
1630          * @param array $args Method parameters. Contains:
1631          *  - int     $blog_id
1632          *  - string  $username
1633          *  - string  $password
1634          *  - string  $taxnomy_name
1635          *  - string     $term_id
1636          * @return boolean|IXR_Error If it suceeded true else a reason why not
1637          */
1638         function wp_deleteTerm( $args ) {
1639                 if ( ! $this->minimum_args( $args, 5 ) )
1640                         return $this->error;
1641
1642                 $this->escape( $args );
1643
1644                 $blog_id            = (int) $args[0];
1645                 $username           = $args[1];
1646                 $password           = $args[2];
1647                 $taxonomy           = $args[3];
1648                 $term_id            = (int) $args[4];
1649
1650                 if ( ! $user = $this->login( $username, $password ) )
1651                         return $this->error;
1652
1653                 do_action( 'xmlrpc_call', 'wp.deleteTerm' );
1654
1655                 if ( ! taxonomy_exists( $taxonomy ) )
1656                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
1657
1658                 $taxonomy = get_taxonomy( $taxonomy );
1659
1660                 if ( ! current_user_can( $taxonomy->cap->delete_terms ) )
1661                         return new IXR_Error( 401, __( 'You are not allowed to delete terms in this taxonomy.' ) );
1662
1663                 $term = get_term( $term_id, $taxonomy->name );
1664
1665                 if ( is_wp_error( $term ) )
1666                         return new IXR_Error( 500, $term->get_error_message() );
1667
1668                 if ( ! $term )
1669                         return new IXR_Error( 404, __( 'Invalid term ID' ) );
1670
1671                 $result = wp_delete_term( $term_id, $taxonomy->name );
1672
1673                 if ( is_wp_error( $result ) )
1674                         return new IXR_Error( 500, $term->get_error_message() );
1675
1676                 if ( ! $result )
1677                         return new IXR_Error( 500, __( 'Sorry, deleting the term failed.' ) );
1678
1679                 return $result;
1680         }
1681
1682         /**
1683          * Retrieve a term.
1684          *
1685          * @since 3.4.0
1686          *
1687          * @uses get_term()
1688          * @param array $args Method parameters. Contains:
1689          *  - int     $blog_id
1690          *  - string  $username
1691          *  - string  $password
1692          *  - string  $taxonomy
1693          *  - string  $term_id
1694          * @return array contains:
1695          *  - 'term_id'
1696          *  - 'name'
1697          *  - 'slug'
1698          *  - 'term_group'
1699          *  - 'term_taxonomy_id'
1700          *  - 'taxonomy'
1701          *  - 'description'
1702          *  - 'parent'
1703          *  - 'count'
1704          */
1705         function wp_getTerm( $args ) {
1706                 if ( ! $this->minimum_args( $args, 5 ) )
1707                         return $this->error;
1708
1709                 $this->escape( $args );
1710
1711                 $blog_id            = (int) $args[0];
1712                 $username           = $args[1];
1713                 $password           = $args[2];
1714                 $taxonomy           = $args[3];
1715                 $term_id            = (int) $args[4];
1716
1717                 if ( ! $user = $this->login( $username, $password ) )
1718                         return $this->error;
1719
1720                 do_action( 'xmlrpc_call', 'wp.getTerm' );
1721
1722                 if ( ! taxonomy_exists( $taxonomy ) )
1723                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
1724
1725                 $taxonomy = get_taxonomy( $taxonomy );
1726
1727                 if ( ! current_user_can( $taxonomy->cap->assign_terms ) )
1728                         return new IXR_Error( 401, __( 'You are not allowed to assign terms in this taxonomy.' ) );
1729
1730                 $term = get_term( $term_id , $taxonomy->name, ARRAY_A );
1731
1732                 if ( is_wp_error( $term ) )
1733                         return new IXR_Error( 500, $term->get_error_message() );
1734
1735                 if ( ! $term )
1736                         return new IXR_Error( 404, __( 'Invalid term ID' ) );
1737
1738                 return $this->_prepare_term( $term );
1739         }
1740
1741         /**
1742          * Retrieve all terms for a taxonomy.
1743          *
1744          * @since 3.4.0
1745          *
1746          * The optional $filter parameter modifies the query used to retrieve terms.
1747          * Accepted keys are 'number', 'offset', 'orderby', 'order', 'hide_empty', and 'search'.
1748          *
1749          * @uses get_terms()
1750          * @param array $args Method parameters. Contains:
1751          *  - int     $blog_id
1752          *  - string  $username
1753          *  - string  $password
1754          *  - string  $taxonomy
1755          *  - array   $filter optional
1756          * @return array terms
1757          */
1758         function wp_getTerms( $args ) {
1759                 if ( ! $this->minimum_args( $args, 4 ) )
1760                         return $this->error;
1761
1762                 $this->escape( $args );
1763
1764                 $blog_id        = (int) $args[0];
1765                 $username       = $args[1];
1766                 $password       = $args[2];
1767                 $taxonomy       = $args[3];
1768                 $filter         = isset( $args[4] ) ? $args[4] : array();
1769
1770                 if ( ! $user = $this->login( $username, $password ) )
1771                         return $this->error;
1772
1773                 do_action( 'xmlrpc_call', 'wp.getTerms' );
1774
1775                 if ( ! taxonomy_exists( $taxonomy ) )
1776                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
1777
1778                 $taxonomy = get_taxonomy( $taxonomy );
1779
1780                 if ( ! current_user_can( $taxonomy->cap->assign_terms ) )
1781                         return new IXR_Error( 401, __( 'You are not allowed to assign terms in this taxonomy.' ) );
1782
1783                 $query = array();
1784
1785                 if ( isset( $filter['number'] ) )
1786                         $query['number'] = absint( $filter['number'] );
1787
1788                 if ( isset( $filter['offset'] ) )
1789                         $query['offset'] = absint( $filter['offset'] );
1790
1791                 if ( isset( $filter['orderby'] ) ) {
1792                         $query['orderby'] = $filter['orderby'];
1793
1794                         if ( isset( $filter['order'] ) )
1795                                 $query['order'] = $filter['order'];
1796                 }
1797
1798                 if ( isset( $filter['hide_empty'] ) )
1799                         $query['hide_empty'] = $filter['hide_empty'];
1800                 else
1801                         $query['get'] = 'all';
1802
1803                 if ( isset( $filter['search'] ) )
1804                         $query['search'] = $filter['search'];
1805
1806                 $terms = get_terms( $taxonomy->name, $query );
1807
1808                 if ( is_wp_error( $terms ) )
1809                         return new IXR_Error( 500, $terms->get_error_message() );
1810
1811                 $struct = array();
1812
1813                 foreach ( $terms as $term ) {
1814                         $struct[] = $this->_prepare_term( $term );
1815                 }
1816
1817                 return $struct;
1818         }
1819
1820         /**
1821          * Retrieve a taxonomy.
1822          *
1823          * @since 3.4.0
1824          *
1825          * @uses get_taxonomy()
1826          * @param array $args Method parameters. Contains:
1827          *  - int     $blog_id
1828          *  - string  $username
1829          *  - string  $password
1830          *  - string  $taxonomy
1831          * @return array (@see get_taxonomy())
1832          */
1833         function wp_getTaxonomy( $args ) {
1834                 if ( ! $this->minimum_args( $args, 4 ) )
1835                         return $this->error;
1836
1837                 $this->escape( $args );
1838
1839                 $blog_id        = (int) $args[0];
1840                 $username       = $args[1];
1841                 $password       = $args[2];
1842                 $taxonomy       = $args[3];
1843
1844                 if ( isset( $args[4] ) )
1845                         $fields = $args[4];
1846                 else
1847                         $fields = apply_filters( 'xmlrpc_default_taxonomy_fields', array( 'labels', 'cap', 'object_type' ), 'wp.getTaxonomy' );
1848
1849                 if ( ! $user = $this->login( $username, $password ) )
1850                         return $this->error;
1851
1852                 do_action( 'xmlrpc_call', 'wp.getTaxonomy' );
1853
1854                 if ( ! taxonomy_exists( $taxonomy ) )
1855                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
1856
1857                 $taxonomy = get_taxonomy( $taxonomy );
1858
1859                 if ( ! current_user_can( $taxonomy->cap->assign_terms ) )
1860                         return new IXR_Error( 401, __( 'You are not allowed to assign terms in this taxonomy.' ) );
1861
1862                 return $this->_prepare_taxonomy( $taxonomy, $fields );
1863         }
1864
1865         /**
1866          * Retrieve all taxonomies.
1867          *
1868          * @since 3.4.0
1869          *
1870          * @uses get_taxonomies()
1871          * @param array $args Method parameters. Contains:
1872          *  - int     $blog_id
1873          *  - string  $username
1874          *  - string  $password
1875          * @return array taxonomies
1876          */
1877         function wp_getTaxonomies( $args ) {
1878                 if ( ! $this->minimum_args( $args, 3 ) )
1879                         return $this->error;
1880
1881                 $this->escape( $args );
1882
1883                 $blog_id            = (int) $args[0];
1884                 $username           = $args[1];
1885                 $password           = $args[2];
1886                 $filter             = isset( $args[3] ) ? $args[3] : array( 'public' => true );
1887
1888                 if ( isset( $args[4] ) )
1889                         $fields = $args[4];
1890                 else
1891                         $fields = apply_filters( 'xmlrpc_default_taxonomy_fields', array( 'labels', 'cap', 'object_type' ), 'wp.getTaxonomies' );
1892
1893                 if ( ! $user = $this->login( $username, $password ) )
1894                         return $this->error;
1895
1896                 do_action( 'xmlrpc_call', 'wp.getTaxonomies' );
1897
1898                 $taxonomies = get_taxonomies( $filter, 'objects' );
1899
1900                 // holds all the taxonomy data
1901                 $struct = array();
1902
1903                 foreach ( $taxonomies as $taxonomy ) {
1904                         // capability check for post_types
1905                         if ( ! current_user_can( $taxonomy->cap->assign_terms ) )
1906                                 continue;
1907
1908                         $struct[] = $this->_prepare_taxonomy( $taxonomy, $fields );
1909                 }
1910
1911                 return $struct;
1912         }
1913
1914         /**
1915          * Retrieve page.
1916          *
1917          * @since 2.2.0
1918          *
1919          * @param array $args Method parameters. Contains:
1920          *  - blog_id
1921          *  - page_id
1922          *  - username
1923          *  - password
1924          * @return array
1925          */
1926         function wp_getPage($args) {
1927                 $this->escape($args);
1928
1929                 $blog_id        = (int) $args[0];
1930                 $page_id        = (int) $args[1];
1931                 $username       = $args[2];
1932                 $password       = $args[3];
1933
1934                 if ( !$user = $this->login($username, $password) ) {
1935                         return $this->error;
1936                 }
1937
1938                 $page = get_page($page_id);
1939                 if ( ! $page )
1940                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
1941
1942                 if ( !current_user_can( 'edit_page', $page_id ) )
1943                         return new IXR_Error( 401, __( 'Sorry, you cannot edit this page.' ) );
1944
1945                 do_action('xmlrpc_call', 'wp.getPage');
1946
1947                 // If we found the page then format the data.
1948                 if ( $page->ID && ($page->post_type == 'page') ) {
1949                         return $this->_prepare_page( $page );
1950                 }
1951                 // If the page doesn't exist indicate that.
1952                 else {
1953                         return(new IXR_Error(404, __('Sorry, no such page.')));
1954                 }
1955         }
1956
1957         /**
1958          * Retrieve Pages.
1959          *
1960          * @since 2.2.0
1961          *
1962          * @param array $args Method parameters. Contains:
1963          *  - blog_id
1964          *  - username
1965          *  - password
1966          *  - num_pages
1967          * @return array
1968          */
1969         function wp_getPages($args) {
1970                 $this->escape($args);
1971
1972                 $blog_id        = (int) $args[0];
1973                 $username       = $args[1];
1974                 $password       = $args[2];
1975                 $num_pages      = isset($args[3]) ? (int) $args[3] : 10;
1976
1977                 if ( !$user = $this->login($username, $password) )
1978                         return $this->error;
1979
1980                 if ( !current_user_can( 'edit_pages' ) )
1981                         return new IXR_Error( 401, __( 'Sorry, you cannot edit pages.' ) );
1982
1983                 do_action('xmlrpc_call', 'wp.getPages');
1984
1985                 $pages = get_posts( array('post_type' => 'page', 'post_status' => 'any', 'numberposts' => $num_pages) );
1986                 $num_pages = count($pages);
1987
1988                 // If we have pages, put together their info.
1989                 if ( $num_pages >= 1 ) {
1990                         $pages_struct = array();
1991
1992                         foreach ($pages as $page) {
1993                                 if ( current_user_can( 'edit_page', $page->ID ) )
1994                                         $pages_struct[] = $this->_prepare_page( $page );
1995                         }
1996
1997                         return($pages_struct);
1998                 }
1999                 // If no pages were found return an error.
2000                 else {
2001                         return(array());
2002                 }
2003         }
2004
2005         /**
2006          * Create new page.
2007          *
2008          * @since 2.2.0
2009          *
2010          * @param array $args Method parameters. See {@link wp_xmlrpc_server::mw_newPost()}
2011          * @return unknown
2012          */
2013         function wp_newPage($args) {
2014                 // Items not escaped here will be escaped in newPost.
2015                 $username       = $this->escape($args[1]);
2016                 $password       = $this->escape($args[2]);
2017                 $page           = $args[3];
2018                 $publish        = $args[4];
2019
2020                 if ( !$user = $this->login($username, $password) )
2021                         return $this->error;
2022
2023                 do_action('xmlrpc_call', 'wp.newPage');
2024
2025                 // Mark this as content for a page.
2026                 $args[3]["post_type"] = 'page';
2027
2028                 // Let mw_newPost do all of the heavy lifting.
2029                 return($this->mw_newPost($args));
2030         }
2031
2032         /**
2033          * Delete page.
2034          *
2035          * @since 2.2.0
2036          *
2037          * @param array $args Method parameters.
2038          * @return bool True, if success.
2039          */
2040         function wp_deletePage($args) {
2041                 $this->escape($args);
2042
2043                 $blog_id        = (int) $args[0];
2044                 $username       = $args[1];
2045                 $password       = $args[2];
2046                 $page_id        = (int) $args[3];
2047
2048                 if ( !$user = $this->login($username, $password) )
2049                         return $this->error;
2050
2051                 do_action('xmlrpc_call', 'wp.deletePage');
2052
2053                 // Get the current page based on the page_id and
2054                 // make sure it is a page and not a post.
2055                 $actual_page = wp_get_single_post($page_id, ARRAY_A);
2056                 if ( !$actual_page || ($actual_page['post_type'] != 'page') )
2057                         return(new IXR_Error(404, __('Sorry, no such page.')));
2058
2059                 // Make sure the user can delete pages.
2060                 if ( !current_user_can('delete_page', $page_id) )
2061                         return(new IXR_Error(401, __('Sorry, you do not have the right to delete this page.')));
2062
2063                 // Attempt to delete the page.
2064                 $result = wp_delete_post($page_id);
2065                 if ( !$result )
2066                         return(new IXR_Error(500, __('Failed to delete the page.')));
2067
2068                 do_action( 'xmlrpc_call_success_wp_deletePage', $page_id, $args );
2069
2070                 return(true);
2071         }
2072
2073         /**
2074          * Edit page.
2075          *
2076          * @since 2.2.0
2077          *
2078          * @param array $args Method parameters.
2079          * @return unknown
2080          */
2081         function wp_editPage($args) {
2082                 // Items not escaped here will be escaped in editPost.
2083                 $blog_id        = (int) $args[0];
2084                 $page_id        = (int) $this->escape($args[1]);
2085                 $username       = $this->escape($args[2]);
2086                 $password       = $this->escape($args[3]);
2087                 $content        = $args[4];
2088                 $publish        = $args[5];
2089
2090                 if ( !$user = $this->login($username, $password) )
2091                         return $this->error;
2092
2093                 do_action('xmlrpc_call', 'wp.editPage');
2094
2095                 // Get the page data and make sure it is a page.
2096                 $actual_page = wp_get_single_post($page_id, ARRAY_A);
2097                 if ( !$actual_page || ($actual_page['post_type'] != 'page') )
2098                         return(new IXR_Error(404, __('Sorry, no such page.')));
2099
2100                 // Make sure the user is allowed to edit pages.
2101                 if ( !current_user_can('edit_page', $page_id) )
2102                         return(new IXR_Error(401, __('Sorry, you do not have the right to edit this page.')));
2103
2104                 // Mark this as content for a page.
2105                 $content['post_type'] = 'page';
2106
2107                 // Arrange args in the way mw_editPost understands.
2108                 $args = array(
2109                         $page_id,
2110                         $username,
2111                         $password,
2112                         $content,
2113                         $publish
2114                 );
2115
2116                 // Let mw_editPost do all of the heavy lifting.
2117                 return($this->mw_editPost($args));
2118         }
2119
2120         /**
2121          * Retrieve page list.
2122          *
2123          * @since 2.2.0
2124          *
2125          * @param array $args Method parameters.
2126          * @return unknown
2127          */
2128         function wp_getPageList($args) {
2129                 global $wpdb;
2130
2131                 $this->escape($args);
2132
2133                 $blog_id                                = (int) $args[0];
2134                 $username                               = $args[1];
2135                 $password                               = $args[2];
2136
2137                 if ( !$user = $this->login($username, $password) )
2138                         return $this->error;
2139
2140                 if ( !current_user_can( 'edit_pages' ) )
2141                         return new IXR_Error( 401, __( 'Sorry, you cannot edit pages.' ) );
2142
2143                 do_action('xmlrpc_call', 'wp.getPageList');
2144
2145                 // Get list of pages ids and titles
2146                 $page_list = $wpdb->get_results("
2147                         SELECT ID page_id,
2148                                 post_title page_title,
2149                                 post_parent page_parent_id,
2150                                 post_date_gmt,
2151                                 post_date,
2152                                 post_status
2153                         FROM {$wpdb->posts}
2154                         WHERE post_type = 'page'
2155                         ORDER BY ID
2156                 ");
2157
2158                 // The date needs to be formatted properly.
2159                 $num_pages = count($page_list);
2160                 for ( $i = 0; $i < $num_pages; $i++ ) {
2161                         $page_list[$i]->dateCreated = $this->_convert_date(  $page_list[$i]->post_date );
2162                         $page_list[$i]->date_created_gmt = $this->_convert_date_gmt( $page_list[$i]->post_date_gmt, $page_list[$i]->post_date );
2163
2164                         unset($page_list[$i]->post_date_gmt);
2165                         unset($page_list[$i]->post_date);
2166                         unset($page_list[$i]->post_status);
2167                 }
2168
2169                 return($page_list);
2170         }
2171
2172         /**
2173          * Retrieve authors list.
2174          *
2175          * @since 2.2.0
2176          *
2177          * @param array $args Method parameters.
2178          * @return array
2179          */
2180         function wp_getAuthors($args) {
2181
2182                 $this->escape($args);
2183
2184                 $blog_id        = (int) $args[0];
2185                 $username       = $args[1];
2186                 $password       = $args[2];
2187
2188                 if ( !$user = $this->login($username, $password) )
2189                         return $this->error;
2190
2191                 if ( !current_user_can('edit_posts') )
2192                         return(new IXR_Error(401, __('Sorry, you cannot edit posts on this site.')));
2193
2194                 do_action('xmlrpc_call', 'wp.getAuthors');
2195
2196                 $authors = array();
2197                 foreach ( get_users( array( 'fields' => array('ID','user_login','display_name') ) ) as $user ) {
2198                         $authors[] = array(
2199                                 'user_id'       => $user->ID,
2200                                 'user_login'    => $user->user_login,
2201                                 'display_name'  => $user->display_name
2202                         );
2203                 }
2204
2205                 return $authors;
2206         }
2207
2208         /**
2209          * Get list of all tags
2210          *
2211          * @since 2.7.0
2212          *
2213          * @param array $args Method parameters.
2214          * @return array
2215          */
2216         function wp_getTags( $args ) {
2217                 $this->escape( $args );
2218
2219                 $blog_id                = (int) $args[0];
2220                 $username               = $args[1];
2221                 $password               = $args[2];
2222
2223                 if ( !$user = $this->login($username, $password) )
2224                         return $this->error;
2225
2226                 if ( !current_user_can( 'edit_posts' ) )
2227                         return new IXR_Error( 401, __( 'Sorry, you must be able to edit posts on this site in order to view tags.' ) );
2228
2229                 do_action( 'xmlrpc_call', 'wp.getKeywords' );
2230
2231                 $tags = array();
2232
2233                 if ( $all_tags = get_tags() ) {
2234                         foreach( (array) $all_tags as $tag ) {
2235                                 $struct['tag_id']                       = $tag->term_id;
2236                                 $struct['name']                         = $tag->name;
2237                                 $struct['count']                        = $tag->count;
2238                                 $struct['slug']                         = $tag->slug;
2239                                 $struct['html_url']                     = esc_html( get_tag_link( $tag->term_id ) );
2240                                 $struct['rss_url']                      = esc_html( get_tag_feed_link( $tag->term_id ) );
2241
2242                                 $tags[] = $struct;
2243                         }
2244                 }
2245
2246                 return $tags;
2247         }
2248
2249         /**
2250          * Create new category.
2251          *
2252          * @since 2.2.0
2253          *
2254          * @param array $args Method parameters.
2255          * @return int Category ID.
2256          */
2257         function wp_newCategory($args) {
2258                 $this->escape($args);
2259
2260                 $blog_id                                = (int) $args[0];
2261                 $username                               = $args[1];
2262                 $password                               = $args[2];
2263                 $category                               = $args[3];
2264
2265                 if ( !$user = $this->login($username, $password) )
2266                         return $this->error;
2267
2268                 do_action('xmlrpc_call', 'wp.newCategory');
2269
2270                 // Make sure the user is allowed to add a category.
2271                 if ( !current_user_can('manage_categories') )
2272                         return(new IXR_Error(401, __('Sorry, you do not have the right to add a category.')));
2273
2274                 // If no slug was provided make it empty so that
2275                 // WordPress will generate one.
2276                 if ( empty($category['slug']) )
2277                         $category['slug'] = '';
2278
2279                 // If no parent_id was provided make it empty
2280                 // so that it will be a top level page (no parent).
2281                 if ( !isset($category['parent_id']) )
2282                         $category['parent_id'] = '';
2283
2284                 // If no description was provided make it empty.
2285                 if ( empty($category["description"]) )
2286                         $category["description"] = "";
2287
2288                 $new_category = array(
2289                         'cat_name'                              => $category['name'],
2290                         'category_nicename'             => $category['slug'],
2291                         'category_parent'               => $category['parent_id'],
2292                         'category_description'  => $category['description']
2293                 );
2294
2295                 $cat_id = wp_insert_category($new_category, true);
2296                 if ( is_wp_error( $cat_id ) ) {
2297                         if ( 'term_exists' == $cat_id->get_error_code() )
2298                                 return (int) $cat_id->get_error_data();
2299                         else
2300                                 return(new IXR_Error(500, __('Sorry, the new category failed.')));
2301                 } elseif ( ! $cat_id ) {
2302                         return(new IXR_Error(500, __('Sorry, the new category failed.')));
2303                 }
2304
2305                 do_action( 'xmlrpc_call_success_wp_newCategory', $cat_id, $args );
2306
2307                 return $cat_id;
2308         }
2309
2310         /**
2311          * Remove category.
2312          *
2313          * @since 2.5.0
2314          *
2315          * @param array $args Method parameters.
2316          * @return mixed See {@link wp_delete_term()} for return info.
2317          */
2318         function wp_deleteCategory($args) {
2319                 $this->escape($args);
2320
2321                 $blog_id                = (int) $args[0];
2322                 $username               = $args[1];
2323                 $password               = $args[2];
2324                 $category_id    = (int) $args[3];
2325
2326                 if ( !$user = $this->login($username, $password) )
2327                         return $this->error;
2328
2329                 do_action('xmlrpc_call', 'wp.deleteCategory');
2330
2331                 if ( !current_user_can('manage_categories') )
2332                         return new IXR_Error( 401, __( 'Sorry, you do not have the right to delete a category.' ) );
2333
2334                 $status = wp_delete_term( $category_id, 'category' );
2335
2336                 if( true == $status )
2337                         do_action( 'xmlrpc_call_success_wp_deleteCategory', $category_id, $args );
2338
2339                 return $status;
2340         }
2341
2342         /**
2343          * Retrieve category list.
2344          *
2345          * @since 2.2.0
2346          *
2347          * @param array $args Method parameters.
2348          * @return array
2349          */
2350         function wp_suggestCategories($args) {
2351                 $this->escape($args);
2352
2353                 $blog_id                                = (int) $args[0];
2354                 $username                               = $args[1];
2355                 $password                               = $args[2];
2356                 $category                               = $args[3];
2357                 $max_results                    = (int) $args[4];
2358
2359                 if ( !$user = $this->login($username, $password) )
2360                         return $this->error;
2361
2362                 if ( !current_user_can( 'edit_posts' ) )
2363                         return new IXR_Error( 401, __( 'Sorry, you must be able to edit posts to this site in order to view categories.' ) );
2364
2365                 do_action('xmlrpc_call', 'wp.suggestCategories');
2366
2367                 $category_suggestions = array();
2368                 $args = array('get' => 'all', 'number' => $max_results, 'name__like' => $category);
2369                 foreach ( (array) get_categories($args) as $cat ) {
2370                         $category_suggestions[] = array(
2371                                 'category_id'   => $cat->term_id,
2372                                 'category_name' => $cat->name
2373                         );
2374                 }
2375
2376                 return($category_suggestions);
2377         }
2378
2379         /**
2380          * Retrieve comment.
2381          *
2382          * @since 2.7.0
2383          *
2384          * @param array $args Method parameters.
2385          * @return array
2386          */
2387         function wp_getComment($args) {
2388                 $this->escape($args);
2389
2390                 $blog_id        = (int) $args[0];
2391                 $username       = $args[1];
2392                 $password       = $args[2];
2393                 $comment_id     = (int) $args[3];
2394
2395                 if ( !$user = $this->login($username, $password) )
2396                         return $this->error;
2397
2398                 if ( !current_user_can( 'moderate_comments' ) )
2399                         return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );
2400
2401                 do_action('xmlrpc_call', 'wp.getComment');
2402
2403                 if ( ! $comment = get_comment($comment_id) )
2404                         return new IXR_Error( 404, __( 'Invalid comment ID.' ) );
2405
2406                 return $this->_prepare_comment( $comment );
2407         }
2408
2409         /**
2410          * Retrieve comments.
2411          *
2412          * Besides the common blog_id, username, and password arguments, it takes a filter
2413          * array as last argument.
2414          *
2415          * Accepted 'filter' keys are 'status', 'post_id', 'offset', and 'number'.
2416          *
2417          * The defaults are as follows:
2418          * - 'status' - Default is ''. Filter by status (e.g., 'approve', 'hold')
2419          * - 'post_id' - Default is ''. The post where the comment is posted. Empty string shows all comments.
2420          * - 'number' - Default is 10. Total number of media items to retrieve.
2421          * - 'offset' - Default is 0. See {@link WP_Query::query()} for more.
2422          *
2423          * @since 2.7.0
2424          *
2425          * @param array $args Method parameters.
2426          * @return array. Contains a collection of comments. See {@link wp_xmlrpc_server::wp_getComment()} for a description of each item contents
2427          */
2428         function wp_getComments($args) {
2429                 $this->escape($args);
2430
2431                 $blog_id        = (int) $args[0];
2432                 $username       = $args[1];
2433                 $password       = $args[2];
2434                 $struct         = isset( $args[3] ) ? $args[3] : array();
2435
2436                 if ( !$user = $this->login($username, $password) )
2437                         return $this->error;
2438
2439                 if ( !current_user_can( 'moderate_comments' ) )
2440                         return new IXR_Error( 401, __( 'Sorry, you cannot edit comments.' ) );
2441
2442                 do_action('xmlrpc_call', 'wp.getComments');
2443
2444                 if ( isset($struct['status']) )
2445                         $status = $struct['status'];
2446                 else
2447                         $status = '';
2448
2449                 $post_id = '';
2450                 if ( isset($struct['post_id']) )
2451                         $post_id = absint($struct['post_id']);
2452
2453                 $offset = 0;
2454                 if ( isset($struct['offset']) )
2455                         $offset = absint($struct['offset']);
2456
2457                 $number = 10;
2458                 if ( isset($struct['number']) )
2459                         $number = absint($struct['number']);
2460
2461                 $comments = get_comments( array('status' => $status, 'post_id' => $post_id, 'offset' => $offset, 'number' => $number ) );
2462
2463                 $comments_struct = array();
2464
2465                 foreach ( $comments as $comment ) {
2466                         $comments_struct[] = $this->_prepare_comment( $comment );
2467                 }
2468
2469                 return $comments_struct;
2470         }
2471
2472         /**
2473          * Delete a comment.
2474          *
2475          * By default, the comment will be moved to the trash instead of deleted.
2476          * See {@link wp_delete_comment()} for more information on
2477          * this behavior.
2478          *
2479          * @since 2.7.0
2480          *
2481          * @param array $args Method parameters. Contains:
2482          *  - blog_id
2483          *  - username
2484          *  - password
2485          *  - comment_id
2486          * @return mixed {@link wp_delete_comment()}
2487          */
2488         function wp_deleteComment($args) {
2489                 $this->escape($args);
2490
2491                 $blog_id        = (int) $args[0];
2492                 $username       = $args[1];
2493                 $password       = $args[2];
2494                 $comment_ID     = (int) $args[3];
2495
2496                 if ( !$user = $this->login($username, $password) )
2497                         return $this->error;
2498
2499                 if ( !current_user_can( 'moderate_comments' ) )
2500                         return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );
2501
2502                 if ( ! get_comment($comment_ID) )
2503                         return new IXR_Error( 404, __( 'Invalid comment ID.' ) );
2504
2505                 if ( !current_user_can( 'edit_comment', $comment_ID ) )
2506                         return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );
2507
2508                 do_action('xmlrpc_call', 'wp.deleteComment');
2509
2510                 $status = wp_delete_comment( $comment_ID );
2511
2512                 if( true == $status )
2513                         do_action( 'xmlrpc_call_success_wp_deleteComment', $comment_ID, $args );
2514
2515                 return $status;
2516         }
2517
2518         /**
2519          * Edit comment.
2520          *
2521          * Besides the common blog_id, username, and password arguments, it takes a
2522          * comment_id integer and a content_struct array as last argument.
2523          *
2524          * The allowed keys in the content_struct array are:
2525          *  - 'author'
2526          *  - 'author_url'
2527          *  - 'author_email'
2528          *  - 'content'
2529          *  - 'date_created_gmt'
2530          *  - 'status'. Common statuses are 'approve', 'hold', 'spam'. See {@link get_comment_statuses()} for more details
2531          *
2532          * @since 2.7.0
2533          *
2534          * @param array $args. Contains:
2535          *  - blog_id
2536          *  - username
2537          *  - password
2538          *  - comment_id
2539          *  - content_struct
2540          * @return bool True, on success.
2541          */
2542         function wp_editComment($args) {
2543                 $this->escape($args);
2544
2545                 $blog_id        = (int) $args[0];
2546                 $username       = $args[1];
2547                 $password       = $args[2];
2548                 $comment_ID     = (int) $args[3];
2549                 $content_struct = $args[4];
2550
2551                 if ( !$user = $this->login($username, $password) )
2552                         return $this->error;
2553
2554                 if ( !current_user_can( 'moderate_comments' ) )
2555                         return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );
2556
2557                 if ( ! get_comment($comment_ID) )
2558                         return new IXR_Error( 404, __( 'Invalid comment ID.' ) );
2559
2560                 if ( !current_user_can( 'edit_comment', $comment_ID ) )
2561                         return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );
2562
2563                 do_action('xmlrpc_call', 'wp.editComment');
2564
2565                 if ( isset($content_struct['status']) ) {
2566                         $statuses = get_comment_statuses();
2567                         $statuses = array_keys($statuses);
2568
2569                         if ( ! in_array($content_struct['status'], $statuses) )
2570                                 return new IXR_Error( 401, __( 'Invalid comment status.' ) );
2571                         $comment_approved = $content_struct['status'];
2572                 }
2573
2574                 // Do some timestamp voodoo
2575                 if ( !empty( $content_struct['date_created_gmt'] ) ) {
2576                         // We know this is supposed to be GMT, so we're going to slap that Z on there by force
2577                         $dateCreated = rtrim( $content_struct['date_created_gmt']->getIso(), 'Z' ) . 'Z';
2578                         $comment_date = get_date_from_gmt(iso8601_to_datetime($dateCreated));
2579                         $comment_date_gmt = iso8601_to_datetime($dateCreated, 'GMT');
2580                 }
2581
2582                 if ( isset($content_struct['content']) )
2583                         $comment_content = $content_struct['content'];
2584
2585                 if ( isset($content_struct['author']) )
2586                         $comment_author = $content_struct['author'];
2587
2588                 if ( isset($content_struct['author_url']) )
2589                         $comment_author_url = $content_struct['author_url'];
2590
2591                 if ( isset($content_struct['author_email']) )
2592                         $comment_author_email = $content_struct['author_email'];
2593
2594                 // We've got all the data -- post it:
2595                 $comment = compact('comment_ID', 'comment_content', 'comment_approved', 'comment_date', 'comment_date_gmt', 'comment_author', 'comment_author_email', 'comment_author_url');
2596
2597                 $result = wp_update_comment($comment);
2598                 if ( is_wp_error( $result ) )
2599                         return new IXR_Error(500, $result->get_error_message());
2600
2601                 if ( !$result )
2602                         return new IXR_Error(500, __('Sorry, the comment could not be edited. Something wrong happened.'));
2603
2604                 do_action( 'xmlrpc_call_success_wp_editComment', $comment_ID, $args );
2605
2606                 return true;
2607         }
2608
2609         /**
2610          * Create new comment.
2611          *
2612          * @since 2.7.0
2613          *
2614          * @param array $args Method parameters.
2615          * @return mixed {@link wp_new_comment()}
2616          */
2617         function wp_newComment($args) {
2618                 global $wpdb;
2619
2620                 $this->escape($args);
2621
2622                 $blog_id        = (int) $args[0];
2623                 $username       = $args[1];
2624                 $password       = $args[2];
2625                 $post           = $args[3];
2626                 $content_struct = $args[4];
2627
2628                 $allow_anon = apply_filters('xmlrpc_allow_anonymous_comments', false);
2629
2630                 $user = $this->login($username, $password);
2631
2632                 if ( !$user ) {
2633                         $logged_in = false;
2634                         if ( $allow_anon && get_option('comment_registration') )
2635                                 return new IXR_Error( 403, __( 'You must be registered to comment' ) );
2636                         else if ( !$allow_anon )
2637                                 return $this->error;
2638                 } else {
2639                         $logged_in = true;
2640                 }
2641
2642                 if ( is_numeric($post) )
2643                         $post_id = absint($post);
2644                 else
2645                         $post_id = url_to_postid($post);
2646
2647                 if ( ! $post_id )
2648                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
2649
2650                 if ( ! get_post($post_id) )
2651                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
2652
2653                 $comment['comment_post_ID'] = $post_id;
2654
2655                 if ( $logged_in ) {
2656                         $comment['comment_author'] = $wpdb->escape( $user->display_name );
2657                         $comment['comment_author_email'] = $wpdb->escape( $user->user_email );
2658                         $comment['comment_author_url'] = $wpdb->escape( $user->user_url );
2659                         $comment['user_ID'] = $user->ID;
2660                 } else {
2661                         $comment['comment_author'] = '';
2662                         if ( isset($content_struct['author']) )
2663                                 $comment['comment_author'] = $content_struct['author'];
2664
2665                         $comment['comment_author_email'] = '';
2666                         if ( isset($content_struct['author_email']) )
2667                                 $comment['comment_author_email'] = $content_struct['author_email'];
2668
2669                         $comment['comment_author_url'] = '';
2670                         if ( isset($content_struct['author_url']) )
2671                                 $comment['comment_author_url'] = $content_struct['author_url'];
2672
2673                         $comment['user_ID'] = 0;
2674
2675                         if ( get_option('require_name_email') ) {
2676                                 if ( 6 > strlen($comment['comment_author_email']) || '' == $comment['comment_author'] )
2677                                         return new IXR_Error( 403, __( 'Comment author name and email are required' ) );
2678                                 elseif ( !is_email($comment['comment_author_email']) )
2679                                         return new IXR_Error( 403, __( 'A valid email address is required' ) );
2680                         }
2681                 }
2682
2683                 $comment['comment_parent'] = isset($content_struct['comment_parent']) ? absint($content_struct['comment_parent']) : 0;
2684
2685                 $comment['comment_content'] =  isset($content_struct['content']) ? $content_struct['content'] : null;
2686
2687                 do_action('xmlrpc_call', 'wp.newComment');
2688
2689                 $comment_ID = wp_new_comment( $comment );
2690
2691                 do_action( 'xmlrpc_call_success_wp_newComment', $comment_ID, $args );
2692
2693                 return $comment_ID;
2694         }
2695
2696         /**
2697          * Retrieve all of the comment status.
2698          *
2699          * @since 2.7.0
2700          *
2701          * @param array $args Method parameters.
2702          * @return array
2703          */
2704         function wp_getCommentStatusList($args) {
2705                 $this->escape( $args );
2706
2707                 $blog_id        = (int) $args[0];
2708                 $username       = $args[1];
2709                 $password       = $args[2];
2710
2711                 if ( !$user = $this->login($username, $password) )
2712                         return $this->error;
2713
2714                 if ( !current_user_can( 'moderate_comments' ) )
2715                         return new IXR_Error( 403, __( 'You are not allowed access to details about this site.' ) );
2716
2717                 do_action('xmlrpc_call', 'wp.getCommentStatusList');
2718
2719                 return get_comment_statuses();
2720         }
2721
2722         /**
2723          * Retrieve comment count.
2724          *
2725          * @since 2.5.0
2726          *
2727          * @param array $args Method parameters.
2728          * @return array
2729          */
2730         function wp_getCommentCount( $args ) {
2731                 $this->escape($args);
2732
2733                 $blog_id        = (int) $args[0];
2734                 $username       = $args[1];
2735                 $password       = $args[2];
2736                 $post_id        = (int) $args[3];
2737
2738                 if ( !$user = $this->login($username, $password) )
2739                         return $this->error;
2740
2741                 if ( !current_user_can( 'edit_posts' ) )
2742                         return new IXR_Error( 403, __( 'You are not allowed access to details about comments.' ) );
2743
2744                 do_action('xmlrpc_call', 'wp.getCommentCount');
2745
2746                 $count = wp_count_comments( $post_id );
2747                 return array(
2748                         'approved' => $count->approved,
2749                         'awaiting_moderation' => $count->moderated,
2750                         'spam' => $count->spam,
2751                         'total_comments' => $count->total_comments
2752                 );
2753         }
2754
2755         /**
2756          * Retrieve post statuses.
2757          *
2758          * @since 2.5.0
2759          *
2760          * @param array $args Method parameters.
2761          * @return array
2762          */
2763         function wp_getPostStatusList( $args ) {
2764                 $this->escape( $args );
2765
2766                 $blog_id        = (int) $args[0];
2767                 $username       = $args[1];
2768                 $password       = $args[2];
2769
2770                 if ( !$user = $this->login($username, $password) )
2771                         return $this->error;
2772
2773                 if ( !current_user_can( 'edit_posts' ) )
2774                         return new IXR_Error( 403, __( 'You are not allowed access to details about this site.' ) );
2775
2776                 do_action('xmlrpc_call', 'wp.getPostStatusList');
2777
2778                 return get_post_statuses();
2779         }
2780
2781         /**
2782          * Retrieve page statuses.
2783          *
2784          * @since 2.5.0
2785          *
2786          * @param array $args Method parameters.
2787          * @return array
2788          */
2789         function wp_getPageStatusList( $args ) {
2790                 $this->escape( $args );
2791
2792                 $blog_id        = (int) $args[0];
2793                 $username       = $args[1];
2794                 $password       = $args[2];
2795
2796                 if ( !$user = $this->login($username, $password) )
2797                         return $this->error;
2798
2799                 if ( !current_user_can( 'edit_pages' ) )
2800                         return new IXR_Error( 403, __( 'You are not allowed access to details about this site.' ) );
2801
2802                 do_action('xmlrpc_call', 'wp.getPageStatusList');
2803
2804                 return get_page_statuses();
2805         }
2806
2807         /**
2808          * Retrieve page templates.
2809          *
2810          * @since 2.6.0
2811          *
2812          * @param array $args Method parameters.
2813          * @return array
2814          */
2815         function wp_getPageTemplates( $args ) {
2816                 $this->escape( $args );
2817
2818                 $blog_id        = (int) $args[0];
2819                 $username       = $args[1];
2820                 $password       = $args[2];
2821
2822                 if ( !$user = $this->login($username, $password) )
2823                         return $this->error;
2824
2825                 if ( !current_user_can( 'edit_pages' ) )
2826                         return new IXR_Error( 403, __( 'You are not allowed access to details about this site.' ) );
2827
2828                 $templates = get_page_templates();
2829                 $templates['Default'] = 'default';
2830
2831                 return $templates;
2832         }
2833
2834         /**
2835          * Retrieve blog options.
2836          *
2837          * @since 2.6.0
2838          *
2839          * @param array $args Method parameters.
2840          * @return array
2841          */
2842         function wp_getOptions( $args ) {
2843                 $this->escape( $args );
2844
2845                 $blog_id        = (int) $args[0];
2846                 $username       = $args[1];
2847                 $password       = $args[2];
2848                 $options        = isset( $args[3] ) ? (array) $args[3] : array();
2849
2850                 if ( !$user = $this->login($username, $password) )
2851                         return $this->error;
2852
2853                 // If no specific options where asked for, return all of them
2854                 if ( count( $options ) == 0 )
2855                         $options = array_keys($this->blog_options);
2856
2857                 return $this->_getOptions($options);
2858         }
2859
2860         /**
2861          * Retrieve blog options value from list.
2862          *
2863          * @since 2.6.0
2864          *
2865          * @param array $options Options to retrieve.
2866          * @return array
2867          */
2868         function _getOptions($options) {
2869                 $data = array();
2870                 foreach ( $options as $option ) {
2871                         if ( array_key_exists( $option, $this->blog_options ) ) {
2872                                 $data[$option] = $this->blog_options[$option];
2873                                 //Is the value static or dynamic?
2874                                 if ( isset( $data[$option]['option'] ) ) {
2875                                         $data[$option]['value'] = get_option( $data[$option]['option'] );
2876                                         unset($data[$option]['option']);
2877                                 }
2878                         }
2879                 }
2880
2881                 return $data;
2882         }
2883
2884         /**
2885          * Update blog options.
2886          *
2887          * @since 2.6.0
2888          *
2889          * @param array $args Method parameters.
2890          * @return unknown
2891          */
2892         function wp_setOptions( $args ) {
2893                 $this->escape( $args );
2894
2895                 $blog_id        = (int) $args[0];
2896                 $username       = $args[1];
2897                 $password       = $args[2];
2898                 $options        = (array) $args[3];
2899
2900                 if ( !$user = $this->login($username, $password) )
2901                         return $this->error;
2902
2903                 if ( !current_user_can( 'manage_options' ) )
2904                         return new IXR_Error( 403, __( 'You are not allowed to update options.' ) );
2905
2906                 foreach ( $options as $o_name => $o_value ) {
2907                         $option_names[] = $o_name;
2908                         if ( !array_key_exists( $o_name, $this->blog_options ) )
2909                                 continue;
2910
2911                         if ( $this->blog_options[$o_name]['readonly'] == true )
2912                                 continue;
2913
2914                         update_option( $this->blog_options[$o_name]['option'], $o_value );
2915                 }
2916
2917                 //Now return the updated values
2918                 return $this->_getOptions($option_names);
2919         }
2920
2921         /**
2922          * Retrieve a media item by ID
2923          *
2924          * @since 3.1.0
2925          *
2926          * @param array $args Method parameters. Contains:
2927          *  - blog_id
2928          *  - username
2929          *  - password
2930          *  - attachment_id
2931          * @return array. Associative array containing:
2932          *  - 'date_created_gmt'
2933          *  - 'parent'
2934          *  - 'link'
2935          *  - 'thumbnail'
2936          *  - 'title'
2937          *  - 'caption'
2938          *  - 'description'
2939          *  - 'metadata'
2940          */
2941         function wp_getMediaItem($args) {
2942                 $this->escape($args);
2943
2944                 $blog_id                = (int) $args[0];
2945                 $username               = $args[1];
2946                 $password               = $args[2];
2947                 $attachment_id  = (int) $args[3];
2948
2949                 if ( !$user = $this->login($username, $password) )
2950                         return $this->error;
2951
2952                 if ( !current_user_can( 'upload_files' ) )
2953                         return new IXR_Error( 403, __( 'You do not have permission to upload files.' ) );
2954
2955                 do_action('xmlrpc_call', 'wp.getMediaItem');
2956
2957                 if ( ! $attachment = get_post($attachment_id) )
2958                         return new IXR_Error( 404, __( 'Invalid attachment ID.' ) );
2959
2960                 return $this->_prepare_media_item( $attachment );
2961         }
2962
2963         /**
2964          * Retrieves a collection of media library items (or attachments)
2965          *
2966          * Besides the common blog_id, username, and password arguments, it takes a filter
2967          * array as last argument.
2968          *
2969          * Accepted 'filter' keys are 'parent_id', 'mime_type', 'offset', and 'number'.
2970          *
2971          * The defaults are as follows:
2972          * - 'number' - Default is 5. Total number of media items to retrieve.
2973          * - 'offset' - Default is 0. See {@link WP_Query::query()} for more.
2974          * - 'parent_id' - Default is ''. The post where the media item is attached. Empty string shows all media items. 0 shows unattached media items.
2975          * - 'mime_type' - Default is ''. Filter by mime type (e.g., 'image/jpeg', 'application/pdf')
2976          *
2977          * @since 3.1.0
2978          *
2979          * @param array $args Method parameters. Contains:
2980          *  - blog_id
2981          *  - username
2982          *  - password
2983          *  - filter
2984          * @return array. Contains a collection of media items. See {@link wp_xmlrpc_server::wp_getMediaItem()} for a description of each item contents
2985          */
2986         function wp_getMediaLibrary($args) {
2987                 $this->escape($args);
2988
2989                 $blog_id        = (int) $args[0];
2990                 $username       = $args[1];
2991                 $password       = $args[2];
2992                 $struct         = isset( $args[3] ) ? $args[3] : array() ;
2993
2994                 if ( !$user = $this->login($username, $password) )
2995                         return $this->error;
2996
2997                 if ( !current_user_can( 'upload_files' ) )
2998                         return new IXR_Error( 401, __( 'You do not have permission to upload files.' ) );
2999
3000                 do_action('xmlrpc_call', 'wp.getMediaLibrary');
3001
3002                 $parent_id = ( isset($struct['parent_id']) ) ? absint($struct['parent_id']) : '' ;
3003                 $mime_type = ( isset($struct['mime_type']) ) ? $struct['mime_type'] : '' ;
3004                 $offset = ( isset($struct['offset']) ) ? absint($struct['offset']) : 0 ;
3005                 $number = ( isset($struct['number']) ) ? absint($struct['number']) : -1 ;
3006
3007                 $attachments = get_posts( array('post_type' => 'attachment', 'post_parent' => $parent_id, 'offset' => $offset, 'numberposts' => $number, 'post_mime_type' => $mime_type ) );
3008
3009                 $attachments_struct = array();
3010
3011                 foreach ($attachments as $attachment )
3012                         $attachments_struct[] = $this->_prepare_media_item( $attachment );
3013
3014                 return $attachments_struct;
3015         }
3016
3017         /**
3018           * Retrieves a list of post formats used by the site
3019           *
3020           * @since 3.1
3021           *
3022           * @param array $args Method parameters. Contains:
3023           *  - blog_id
3024           *  - username
3025           *  - password
3026           * @return array
3027           */
3028         function wp_getPostFormats( $args ) {
3029                 $this->escape( $args );
3030
3031                 $blog_id = (int) $args[0];
3032                 $username = $args[1];
3033                 $password = $args[2];
3034
3035                 if ( !$user = $this->login( $username, $password ) )
3036                         return $this->error;
3037
3038                 if ( !current_user_can( 'edit_posts' ) )
3039                         return new IXR_Error( 403, __( 'You are not allowed access to details about this site.' ) );
3040
3041                 do_action( 'xmlrpc_call', 'wp.getPostFormats' );
3042
3043                 $formats = get_post_format_strings();
3044
3045                 # find out if they want a list of currently supports formats
3046                 if ( isset( $args[3] ) && is_array( $args[3] ) ) {
3047                         if ( $args[3]['show-supported'] ) {
3048                                 if ( current_theme_supports( 'post-formats' ) ) {
3049                                         $supported = get_theme_support( 'post-formats' );
3050
3051                                         $data['all'] = $formats;
3052                                         $data['supported'] = $supported[0];
3053
3054                                         $formats = $data;
3055                                 }
3056                         }
3057                 }
3058
3059                 return $formats;
3060         }
3061
3062         /**
3063          * Retrieves a post type
3064          *
3065          * @since 3.4.0
3066          *
3067          * @uses get_post_type_object()
3068          * @param array $args Method parameters. Contains:
3069          *  - int     $blog_id
3070          *  - string  $username
3071          *  - string  $password
3072          *  - string  $post_type_name
3073          *  - array   $fields
3074          * @return array contains:
3075          *  - 'labels'
3076          *  - 'description'
3077          *  - 'capability_type'
3078          *  - 'cap'
3079          *  - 'map_meta_cap'
3080          *  - 'hierarchical'
3081          *  - 'menu_position'
3082          *  - 'taxonomies'
3083          *  - 'supports'
3084          */
3085         function wp_getPostType( $args ) {
3086                 if ( ! $this->minimum_args( $args, 4 ) )
3087                         return $this->error;
3088
3089                 $this->escape( $args );
3090
3091                 $blog_id        = (int) $args[0];
3092                 $username       = $args[1];
3093                 $password       = $args[2];
3094                 $post_type_name = $args[3];
3095
3096                 if ( isset( $args[4] ) )
3097                         $fields = $args[4];
3098                 else
3099                         $fields = apply_filters( 'xmlrpc_default_posttype_fields', array( 'labels', 'cap', 'taxonomies' ), 'wp.getPostType' );
3100
3101                 if ( !$user = $this->login( $username, $password ) )
3102                         return $this->error;
3103
3104                 do_action( 'xmlrpc_call', 'wp.getPostType' );
3105
3106                 if( ! post_type_exists( $post_type_name ) )
3107                         return new IXR_Error( 403, __( 'Invalid post type' ) );
3108
3109                 $post_type = get_post_type_object( $post_type_name );
3110
3111                 if( ! current_user_can( $post_type->cap->edit_posts ) )
3112                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit this post type.' ) );
3113
3114                 return $this->_prepare_post_type( $post_type, $fields );
3115         }
3116
3117         /**
3118          * Retrieves a post types
3119          *
3120          * @since 3.4.0
3121          *
3122          * @uses get_post_types()
3123          * @param array $args Method parameters. Contains:
3124          *  - int     $blog_id
3125          *  - string  $username
3126          *  - string  $password
3127          *  - array   $filter
3128          *  - array   $fields
3129          * @return array
3130          */
3131         function wp_getPostTypes( $args ) {
3132                 if ( ! $this->minimum_args( $args, 3 ) )
3133                         return $this->error;
3134
3135                 $this->escape( $args );
3136
3137                 $blog_id            = (int) $args[0];
3138                 $username           = $args[1];
3139                 $password           = $args[2];
3140                 $filter             = isset( $args[3] ) ? $args[3] : array( 'public' => true );
3141
3142                 if ( isset( $args[4] ) )
3143                         $fields = $args[4];
3144                 else
3145                         $fields = apply_filters( 'xmlrpc_default_posttype_fields', array( 'labels', 'cap', 'taxonomies' ), 'wp.getPostTypes' );
3146
3147                 if ( ! $user = $this->login( $username, $password ) )
3148                         return $this->error;
3149
3150                 do_action( 'xmlrpc_call', 'wp.getPostTypes' );
3151
3152                 $post_types = get_post_types( $filter, 'objects' );
3153
3154                 $struct = array();
3155
3156                 foreach( $post_types as $post_type ) {
3157                         if( ! current_user_can( $post_type->cap->edit_posts ) )
3158                                 continue;
3159
3160                         $struct[$post_type->name] = $this->_prepare_post_type( $post_type, $fields );
3161                 }
3162
3163                 return $struct;
3164         }
3165
3166         /* Blogger API functions.
3167          * specs on http://plant.blogger.com/api and http://groups.yahoo.com/group/bloggerDev/
3168          */
3169
3170         /**
3171          * Retrieve blogs that user owns.
3172          *
3173          * Will make more sense once we support multiple blogs.
3174          *
3175          * @since 1.5.0
3176          *
3177          * @param array $args Method parameters.
3178          * @return array
3179          */
3180         function blogger_getUsersBlogs($args) {
3181                 if ( is_multisite() )
3182                         return $this->_multisite_getUsersBlogs($args);
3183
3184                 $this->escape($args);
3185
3186                 $username = $args[1];
3187                 $password  = $args[2];
3188
3189                 if ( !$user = $this->login($username, $password) )
3190                         return $this->error;
3191
3192                 do_action('xmlrpc_call', 'blogger.getUsersBlogs');
3193
3194                 $is_admin = current_user_can('manage_options');
3195
3196                 $struct = array(
3197                         'isAdmin'  => $is_admin,
3198                         'url'      => get_option('home') . '/',
3199                         'blogid'   => '1',
3200                         'blogName' => get_option('blogname'),
3201                         'xmlrpc'   => site_url( 'xmlrpc.php' )
3202                 );
3203
3204                 return array($struct);
3205         }
3206
3207         /**
3208          * Private function for retrieving a users blogs for multisite setups
3209          *
3210          * @access protected
3211          */
3212         function _multisite_getUsersBlogs($args) {
3213                 global $current_blog;
3214                 $domain = $current_blog->domain;
3215                 $path = $current_blog->path . 'xmlrpc.php';
3216                 $protocol = is_ssl() ? 'https' : 'http';
3217
3218                 $rpc = new IXR_Client("$protocol://{$domain}{$path}");
3219                 $rpc->query('wp.getUsersBlogs', $args[1], $args[2]);
3220                 $blogs = $rpc->getResponse();
3221
3222                 if ( isset($blogs['faultCode']) )
3223                         return new IXR_Error($blogs['faultCode'], $blogs['faultString']);
3224
3225                 if ( $_SERVER['HTTP_HOST'] == $domain && $_SERVER['REQUEST_URI'] == $path ) {
3226                         return $blogs;
3227                 } else {
3228                         foreach ( (array) $blogs as $blog ) {
3229                                 if ( strpos($blog['url'], $_SERVER['HTTP_HOST']) )
3230                                         return array($blog);
3231                         }
3232                         return array();
3233                 }
3234         }
3235
3236         /**
3237          * Retrieve user's data.
3238          *
3239          * Gives your client some info about you, so you don't have to.
3240          *
3241          * @since 1.5.0
3242          *
3243          * @param array $args Method parameters.
3244          * @return array
3245          */
3246         function blogger_getUserInfo($args) {
3247
3248                 $this->escape($args);
3249
3250                 $username = $args[1];
3251                 $password  = $args[2];
3252
3253                 if ( !$user = $this->login($username, $password) )
3254                         return $this->error;
3255
3256                 if ( !current_user_can( 'edit_posts' ) )
3257                         return new IXR_Error( 401, __( 'Sorry, you do not have access to user data on this site.' ) );
3258
3259                 do_action('xmlrpc_call', 'blogger.getUserInfo');
3260
3261                 $struct = array(
3262                         'nickname'  => $user->nickname,
3263                         'userid'    => $user->ID,
3264                         'url'       => $user->user_url,
3265                         'lastname'  => $user->last_name,
3266                         'firstname' => $user->first_name
3267                 );
3268
3269                 return $struct;
3270         }
3271
3272         /**
3273          * Retrieve post.
3274          *
3275          * @since 1.5.0
3276          *
3277          * @param array $args Method parameters.
3278          * @return array
3279          */
3280         function blogger_getPost($args) {
3281
3282                 $this->escape($args);
3283
3284                 $post_ID    = (int) $args[1];
3285                 $username = $args[2];
3286                 $password  = $args[3];
3287
3288                 if ( !$user = $this->login($username, $password) )
3289                         return $this->error;
3290
3291                 $post_data = wp_get_single_post($post_ID, ARRAY_A);
3292                 if ( ! $post_data )
3293                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
3294
3295                 if ( !current_user_can( 'edit_post', $post_ID ) )
3296                         return new IXR_Error( 401, __( 'Sorry, you cannot edit this post.' ) );
3297
3298                 do_action('xmlrpc_call', 'blogger.getPost');
3299
3300                 $categories = implode(',', wp_get_post_categories($post_ID));
3301
3302                 $content  = '<title>'.stripslashes($post_data['post_title']).'</title>';
3303                 $content .= '<category>'.$categories.'</category>';
3304                 $content .= stripslashes($post_data['post_content']);
3305
3306                 $struct = array(
3307                         'userid'    => $post_data['post_author'],
3308                         'dateCreated' => $this->_convert_date( $post_data['post_date'] ),
3309                         'content'     => $content,
3310                         'postid'  => (string) $post_data['ID']
3311                 );
3312
3313                 return $struct;
3314         }
3315
3316         /**
3317          * Retrieve list of recent posts.
3318          *
3319          * @since 1.5.0
3320          *
3321          * @param array $args Method parameters.
3322          * @return array
3323          */
3324         function blogger_getRecentPosts($args) {
3325
3326                 $this->escape($args);
3327
3328                 // $args[0] = appkey - ignored
3329                 $blog_ID    = (int) $args[1]; /* though we don't use it yet */
3330                 $username = $args[2];
3331                 $password  = $args[3];
3332                 if ( isset( $args[4] ) )
3333                         $query = array( 'numberposts' => absint( $args[4] ) );
3334                 else
3335                         $query = array();
3336
3337                 if ( !$user = $this->login($username, $password) )
3338                         return $this->error;
3339
3340                 do_action('xmlrpc_call', 'blogger.getRecentPosts');
3341
3342                 $posts_list = wp_get_recent_posts( $query );
3343
3344                 if ( !$posts_list ) {
3345                         $this->error = new IXR_Error(500, __('Either there are no posts, or something went wrong.'));
3346                         return $this->error;
3347                 }
3348
3349                 foreach ($posts_list as $entry) {
3350                         if ( !current_user_can( 'edit_post', $entry['ID'] ) )
3351                                 continue;
3352
3353                         $post_date  = $this->_convert_date( $entry['post_date'] );
3354                         $categories = implode(',', wp_get_post_categories($entry['ID']));
3355
3356                         $content  = '<title>'.stripslashes($entry['post_title']).'</title>';
3357                         $content .= '<category>'.$categories.'</category>';
3358                         $content .= stripslashes($entry['post_content']);
3359
3360                         $struct[] = array(
3361                                 'userid' => $entry['post_author'],
3362                                 'dateCreated' => $post_date,
3363                                 'content' => $content,
3364                                 'postid' => (string) $entry['ID'],
3365                         );
3366
3367                 }
3368
3369                 $recent_posts = array();
3370                 for ( $j=0; $j<count($struct); $j++ ) {
3371                         array_push($recent_posts, $struct[$j]);
3372                 }
3373
3374                 return $recent_posts;
3375         }
3376
3377         /**
3378          * Retrieve blog_filename content.
3379          *
3380          * @since 1.5.0
3381          *
3382          * @param array $args Method parameters.
3383          * @return string
3384          */
3385         function blogger_getTemplate($args) {
3386
3387                 $this->escape($args);
3388
3389                 $blog_ID    = (int) $args[1];
3390                 $username = $args[2];
3391                 $password  = $args[3];
3392                 $template   = $args[4]; /* could be 'main' or 'archiveIndex', but we don't use it */
3393
3394                 if ( !$user = $this->login($username, $password) )
3395                         return $this->error;
3396
3397                 do_action('xmlrpc_call', 'blogger.getTemplate');
3398
3399                 if ( !current_user_can('edit_themes') )
3400                         return new IXR_Error(401, __('Sorry, this user cannot edit the template.'));
3401
3402                 /* warning: here we make the assumption that the blog's URL is on the same server */
3403                 $filename = get_option('home') . '/';
3404                 $filename = preg_replace('#https?://.+?/#', $_SERVER['DOCUMENT_ROOT'].'/', $filename);
3405
3406                 $f = fopen($filename, 'r');
3407                 $content = fread($f, filesize($filename));
3408                 fclose($f);
3409
3410                 /* so it is actually editable with a windows/mac client */
3411                 // FIXME: (or delete me) do we really want to cater to bad clients at the expense of good ones by BEEPing up their line breaks? commented. $content = str_replace("\n", "\r\n", $content);
3412
3413                 return $content;
3414         }
3415
3416         /**
3417          * Updates the content of blog_filename.
3418          *
3419          * @since 1.5.0
3420          *
3421          * @param array $args Method parameters.
3422          * @return bool True when done.
3423          */
3424         function blogger_setTemplate($args) {
3425
3426                 $this->escape($args);
3427
3428                 $blog_ID    = (int) $args[1];
3429                 $username = $args[2];
3430                 $password  = $args[3];
3431                 $content    = $args[4];
3432                 $template   = $args[5]; /* could be 'main' or 'archiveIndex', but we don't use it */
3433
3434                 if ( !$user = $this->login($username, $password) )
3435                         return $this->error;
3436
3437                 do_action('xmlrpc_call', 'blogger.setTemplate');
3438
3439                 if ( !current_user_can('edit_themes') )
3440                         return new IXR_Error(401, __('Sorry, this user cannot edit the template.'));
3441
3442                 /* warning: here we make the assumption that the blog's URL is on the same server */
3443                 $filename = get_option('home') . '/';
3444                 $filename = preg_replace('#https?://.+?/#', $_SERVER['DOCUMENT_ROOT'].'/', $filename);
3445
3446                 if ($f = fopen($filename, 'w+')) {
3447                         fwrite($f, $content);
3448                         fclose($f);
3449                 } else {
3450                         return new IXR_Error(500, __('Either the file is not writable, or something wrong happened. The file has not been updated.'));
3451                 }
3452
3453                 return true;
3454         }
3455
3456         /**
3457          * Create new post.
3458          *
3459          * @since 1.5.0
3460          *
3461          * @param array $args Method parameters.
3462          * @return int
3463          */
3464         function blogger_newPost($args) {
3465
3466                 $this->escape($args);
3467
3468                 $blog_ID    = (int) $args[1]; /* though we don't use it yet */
3469                 $username = $args[2];
3470                 $password  = $args[3];
3471                 $content    = $args[4];
3472                 $publish    = $args[5];
3473
3474                 if ( !$user = $this->login($username, $password) )
3475                         return $this->error;
3476
3477                 do_action('xmlrpc_call', 'blogger.newPost');
3478
3479                 $cap = ($publish) ? 'publish_posts' : 'edit_posts';
3480                 if ( !current_user_can($cap) )
3481                         return new IXR_Error(401, __('Sorry, you are not allowed to post on this site.'));
3482
3483                 $post_status = ($publish) ? 'publish' : 'draft';
3484
3485                 $post_author = $user->ID;
3486
3487                 $post_title = xmlrpc_getposttitle($content);
3488                 $post_category = xmlrpc_getpostcategory($content);
3489                 $post_content = xmlrpc_removepostdata($content);
3490
3491                 $post_date = current_time('mysql');
3492                 $post_date_gmt = current_time('mysql', 1);
3493
3494                 $post_data = compact('blog_ID', 'post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_title', 'post_category', 'post_status');
3495
3496                 $post_ID = wp_insert_post($post_data);
3497                 if ( is_wp_error( $post_ID ) )
3498                         return new IXR_Error(500, $post_ID->get_error_message());
3499
3500                 if ( !$post_ID )
3501                         return new IXR_Error(500, __('Sorry, your entry could not be posted. Something wrong happened.'));
3502
3503                 $this->attach_uploads( $post_ID, $post_content );
3504
3505                 do_action( 'xmlrpc_call_success_blogger_newPost', $post_ID, $args );
3506
3507                 return $post_ID;
3508         }
3509
3510         /**
3511          * Edit a post.
3512          *
3513          * @since 1.5.0
3514          *
3515          * @param array $args Method parameters.
3516          * @return bool true when done.
3517          */
3518         function blogger_editPost($args) {
3519
3520                 $this->escape($args);
3521
3522                 $post_ID     = (int) $args[1];
3523                 $username  = $args[2];
3524                 $password   = $args[3];
3525                 $content     = $args[4];
3526                 $publish     = $args[5];
3527
3528                 if ( !$user = $this->login($username, $password) )
3529                         return $this->error;
3530
3531                 do_action('xmlrpc_call', 'blogger.editPost');
3532
3533                 $actual_post = wp_get_single_post($post_ID,ARRAY_A);
3534
3535                 if ( !$actual_post || $actual_post['post_type'] != 'post' )
3536                         return new IXR_Error(404, __('Sorry, no such post.'));
3537
3538                 $this->escape($actual_post);
3539
3540                 if ( !current_user_can('edit_post', $post_ID) )
3541                         return new IXR_Error(401, __('Sorry, you do not have the right to edit this post.'));
3542
3543                 extract($actual_post, EXTR_SKIP);
3544
3545                 if ( ('publish' == $post_status) && !current_user_can('publish_posts') )
3546                         return new IXR_Error(401, __('Sorry, you do not have the right to publish this post.'));
3547
3548                 $post_title = xmlrpc_getposttitle($content);
3549                 $post_category = xmlrpc_getpostcategory($content);
3550                 $post_content = xmlrpc_removepostdata($content);
3551
3552                 $postdata = compact('ID', 'post_content', 'post_title', 'post_category', 'post_status', 'post_excerpt');
3553
3554                 $result = wp_update_post($postdata);
3555
3556                 if ( !$result )
3557                         return new IXR_Error(500, __('For some strange yet very annoying reason, this post could not be edited.'));
3558
3559                 $this->attach_uploads( $ID, $post_content );
3560
3561                 do_action( 'xmlrpc_call_success_blogger_editPost', $post_ID, $args );
3562
3563                 return true;
3564         }
3565
3566         /**
3567          * Remove a post.
3568          *
3569          * @since 1.5.0
3570          *
3571          * @param array $args Method parameters.
3572          * @return bool True when post is deleted.
3573          */
3574         function blogger_deletePost($args) {
3575                 $this->escape($args);
3576
3577                 $post_ID     = (int) $args[1];
3578                 $username  = $args[2];
3579                 $password   = $args[3];
3580                 $publish     = $args[4];
3581
3582                 if ( !$user = $this->login($username, $password) )
3583                         return $this->error;
3584
3585                 do_action('xmlrpc_call', 'blogger.deletePost');
3586
3587                 $actual_post = wp_get_single_post($post_ID,ARRAY_A);
3588
3589                 if ( !$actual_post || $actual_post['post_type'] != 'post' )
3590                         return new IXR_Error(404, __('Sorry, no such post.'));
3591
3592                 if ( !current_user_can('delete_post', $post_ID) )
3593                         return new IXR_Error(401, __('Sorry, you do not have the right to delete this post.'));
3594
3595                 $result = wp_delete_post($post_ID);
3596
3597                 if ( !$result )
3598                         return new IXR_Error(500, __('For some strange yet very annoying reason, this post could not be deleted.'));
3599
3600                 do_action( 'xmlrpc_call_success_blogger_deletePost', $post_ID, $args );
3601
3602                 return true;
3603         }
3604
3605         /* MetaWeblog API functions
3606          * specs on wherever Dave Winer wants them to be
3607          */
3608
3609         /**
3610          * Create a new post.
3611          *
3612          * The 'content_struct' argument must contain:
3613          *  - title
3614          *  - description
3615          *  - mt_excerpt
3616          *  - mt_text_more
3617          *  - mt_keywords
3618          *  - mt_tb_ping_urls
3619          *  - categories
3620          *
3621          * Also, it can optionally contain:
3622          *  - wp_slug
3623          *  - wp_password
3624          *  - wp_page_parent_id
3625          *  - wp_page_order
3626          *  - wp_author_id
3627          *  - post_status | page_status - can be 'draft', 'private', 'publish', or 'pending'
3628          *  - mt_allow_comments - can be 'open' or 'closed'
3629          *  - mt_allow_pings - can be 'open' or 'closed'
3630          *  - date_created_gmt
3631          *  - dateCreated
3632          *  - wp_post_thumbnail
3633          *
3634          * @since 1.5.0
3635          *
3636          * @param array $args Method parameters. Contains:
3637          *  - blog_id
3638          *  - username
3639          *  - password
3640          *  - content_struct
3641          *  - publish
3642          * @return int
3643          */
3644         function mw_newPost($args) {
3645                 $this->escape($args);
3646
3647                 $blog_ID     = (int) $args[0];
3648                 $username  = $args[1];
3649                 $password   = $args[2];
3650                 $content_struct = $args[3];
3651                 $publish     = isset( $args[4] ) ? $args[4] : 0;
3652
3653                 if ( !$user = $this->login($username, $password) )
3654                         return $this->error;
3655
3656                 do_action('xmlrpc_call', 'metaWeblog.newPost');
3657
3658                 $page_template = '';
3659                 if ( !empty( $content_struct['post_type'] ) ) {
3660                         if ( $content_struct['post_type'] == 'page' ) {
3661                                 if ( $publish )
3662                                         $cap  = 'publish_pages';
3663                                 elseif ( isset( $content_struct['page_status'] ) && 'publish' == $content_struct['page_status'] )
3664                                         $cap  = 'publish_pages';
3665                                 else
3666                                         $cap = 'edit_pages';
3667                                 $error_message = __( 'Sorry, you are not allowed to publish pages on this site.' );
3668                                 $post_type = 'page';
3669                                 if ( !empty( $content_struct['wp_page_template'] ) )
3670                                         $page_template = $content_struct['wp_page_template'];
3671                         } elseif ( $content_struct['post_type'] == 'post' ) {
3672                                 if ( $publish )
3673                                         $cap  = 'publish_posts';
3674                                 elseif ( isset( $content_struct['post_status'] ) && 'publish' == $content_struct['post_status'] )
3675                                         $cap  = 'publish_posts';
3676                                 else
3677                                         $cap = 'edit_posts';
3678                                 $error_message = __( 'Sorry, you are not allowed to publish posts on this site.' );
3679                                 $post_type = 'post';
3680                         } else {
3681                                 // No other post_type values are allowed here
3682                                 return new IXR_Error( 401, __( 'Invalid post type' ) );
3683                         }
3684                 } else {
3685                         if ( $publish )
3686                                 $cap  = 'publish_posts';
3687                         elseif ( isset( $content_struct['post_status'] ) && 'publish' == $content_struct['post_status'])
3688                                 $cap  = 'publish_posts';
3689                         else
3690                                 $cap = 'edit_posts';
3691                         $error_message = __( 'Sorry, you are not allowed to publish posts on this site.' );
3692                         $post_type = 'post';
3693                 }
3694
3695                 if ( !current_user_can( $cap ) )
3696                         return new IXR_Error( 401, $error_message );
3697
3698                 // Check for a valid post format if one was given
3699                 if ( isset( $content_struct['wp_post_format'] ) ) {
3700                         $content_struct['wp_post_format'] = sanitize_key( $content_struct['wp_post_format'] );
3701                         if ( !array_key_exists( $content_struct['wp_post_format'], get_post_format_strings() ) ) {
3702                                 return new IXR_Error( 404, __( 'Invalid post format' ) );
3703                         }
3704                 }
3705
3706                 // Let WordPress generate the post_name (slug) unless
3707                 // one has been provided.
3708                 $post_name = "";
3709                 if ( isset($content_struct['wp_slug']) )
3710                         $post_name = $content_struct['wp_slug'];
3711
3712                 // Only use a password if one was given.
3713                 if ( isset($content_struct['wp_password']) )
3714                         $post_password = $content_struct['wp_password'];
3715
3716                 // Only set a post parent if one was provided.
3717                 if ( isset($content_struct['wp_page_parent_id']) )
3718                         $post_parent = $content_struct['wp_page_parent_id'];
3719
3720                 // Only set the menu_order if it was provided.
3721                 if ( isset($content_struct['wp_page_order']) )
3722                         $menu_order = $content_struct['wp_page_order'];
3723
3724                 $post_author = $user->ID;
3725
3726                 // If an author id was provided then use it instead.
3727                 if ( isset($content_struct['wp_author_id']) && ($user->ID != $content_struct['wp_author_id']) ) {
3728                         switch ( $post_type ) {
3729                                 case "post":
3730                                         if ( !current_user_can('edit_others_posts') )
3731                                                 return(new IXR_Error(401, __('You are not allowed to post as this user')));
3732                                         break;
3733                                 case "page":
3734                                         if ( !current_user_can('edit_others_pages') )
3735                                                 return(new IXR_Error(401, __('You are not allowed to create pages as this user')));
3736                                         break;
3737                                 default:
3738                                         return(new IXR_Error(401, __('Invalid post type')));
3739                                         break;
3740                         }
3741                         $author = get_userdata( $content_struct['wp_author_id'] );
3742                         if ( ! $author )
3743                                 return new IXR_Error( 404, __( 'Invalid author ID.' ) );
3744                         $post_author = $content_struct['wp_author_id'];
3745                 }
3746
3747                 $post_title = isset( $content_struct['title'] ) ? $content_struct['title'] : null;
3748                 $post_content = isset( $content_struct['description'] ) ? $content_struct['description'] : null;
3749
3750                 $post_status = $publish ? 'publish' : 'draft';
3751
3752                 if ( isset( $content_struct["{$post_type}_status"] ) ) {
3753                         switch ( $content_struct["{$post_type}_status"] ) {
3754                                 case 'draft':
3755                                 case 'pending':
3756                                 case 'private':
3757                                 case 'publish':
3758                                         $post_status = $content_struct["{$post_type}_status"];
3759                                         break;
3760                                 default:
3761                                         $post_status = $publish ? 'publish' : 'draft';
3762                                         break;
3763                         }
3764                 }
3765
3766                 $post_excerpt = isset($content_struct['mt_excerpt']) ? $content_struct['mt_excerpt'] : null;
3767                 $post_more = isset($content_struct['mt_text_more']) ? $content_struct['mt_text_more'] : null;
3768
3769                 $tags_input = isset($content_struct['mt_keywords']) ? $content_struct['mt_keywords'] : null;
3770
3771                 if ( isset($content_struct['mt_allow_comments']) ) {
3772                         if ( !is_numeric($content_struct['mt_allow_comments']) ) {
3773                                 switch ( $content_struct['mt_allow_comments'] ) {
3774                                         case 'closed':
3775                                                 $comment_status = 'closed';
3776                                                 break;
3777                                         case 'open':
3778                                                 $comment_status = 'open';
3779                                                 break;
3780                                         default:
3781                                                 $comment_status = get_option('default_comment_status');
3782                                                 break;
3783                                 }
3784                         } else {
3785                                 switch ( (int) $content_struct['mt_allow_comments'] ) {
3786                                         case 0:
3787                                         case 2:
3788                                                 $comment_status = 'closed';
3789                                                 break;
3790                                         case 1:
3791                                                 $comment_status = 'open';
3792                                                 break;
3793                                         default:
3794                                                 $comment_status = get_option('default_comment_status');
3795                                                 break;
3796                                 }
3797                         }
3798                 } else {
3799                         $comment_status = get_option('default_comment_status');
3800                 }
3801
3802                 if ( isset($content_struct['mt_allow_pings']) ) {
3803                         if ( !is_numeric($content_struct['mt_allow_pings']) ) {
3804                                 switch ( $content_struct['mt_allow_pings'] ) {
3805                                         case 'closed':
3806                                                 $ping_status = 'closed';
3807                                                 break;
3808                                         case 'open':
3809                                                 $ping_status = 'open';
3810                                                 break;
3811                                         default:
3812                                                 $ping_status = get_option('default_ping_status');
3813                                                 break;
3814                                 }
3815                         } else {
3816                                 switch ( (int) $content_struct['mt_allow_pings'] ) {
3817                                         case 0:
3818                                                 $ping_status = 'closed';
3819                                                 break;
3820                                         case 1:
3821                                                 $ping_status = 'open';
3822                                                 break;
3823                                         default:
3824                                                 $ping_status = get_option('default_ping_status');
3825                                                 break;
3826                                 }
3827                         }
3828                 } else {
3829                         $ping_status = get_option('default_ping_status');
3830                 }
3831
3832                 if ( $post_more )
3833                         $post_content = $post_content . '<!--more-->' . $post_more;
3834
3835                 $to_ping = null;
3836                 if ( isset( $content_struct['mt_tb_ping_urls'] ) ) {
3837                         $to_ping = $content_struct['mt_tb_ping_urls'];
3838                         if ( is_array($to_ping) )
3839                                 $to_ping = implode(' ', $to_ping);
3840                 }
3841
3842                 // Do some timestamp voodoo
3843                 if ( !empty( $content_struct['date_created_gmt'] ) )
3844                         // We know this is supposed to be GMT, so we're going to slap that Z on there by force
3845                         $dateCreated = rtrim( $content_struct['date_created_gmt']->getIso(), 'Z' ) . 'Z';
3846                 elseif ( !empty( $content_struct['dateCreated']) )
3847                         $dateCreated = $content_struct['dateCreated']->getIso();
3848
3849                 if ( !empty( $dateCreated ) ) {
3850                         $post_date = get_date_from_gmt(iso8601_to_datetime($dateCreated));
3851                         $post_date_gmt = iso8601_to_datetime($dateCreated, 'GMT');
3852                 } else {
3853                         $post_date = current_time('mysql');
3854                         $post_date_gmt = current_time('mysql', 1);
3855                 }
3856
3857                 $post_category = array();
3858                 if ( isset( $content_struct['categories'] ) ) {
3859                         $catnames = $content_struct['categories'];
3860
3861                         if ( is_array($catnames) ) {
3862                                 foreach ($catnames as $cat) {
3863                                         $post_category[] = get_cat_ID($cat);
3864                                 }
3865                         }
3866                 }
3867
3868                 $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');
3869
3870                 $post_ID = $postdata['ID'] = get_default_post_to_edit( $post_type, true )->ID;
3871
3872                 // Only posts can be sticky
3873                 if ( $post_type == 'post' && isset( $content_struct['sticky'] ) ) {
3874                         if ( $content_struct['sticky'] == true )
3875                                 stick_post( $post_ID );
3876                         elseif ( $content_struct['sticky'] == false )
3877                                 unstick_post( $post_ID );
3878                 }
3879
3880                 if ( isset($content_struct['custom_fields']) )
3881                         $this->set_custom_fields($post_ID, $content_struct['custom_fields']);
3882
3883                 if ( isset ( $content_struct['wp_post_thumbnail'] ) ) {
3884                         if ( set_post_thumbnail( $post_ID, $content_struct['wp_post_thumbnail'] ) === false )
3885                                 return new IXR_Error( 404, __( 'Invalid attachment ID.' ) );
3886
3887                         unset( $content_struct['wp_post_thumbnail'] );
3888                 }
3889
3890                 // Handle enclosures
3891                 $thisEnclosure = isset($content_struct['enclosure']) ? $content_struct['enclosure'] : null;
3892                 $this->add_enclosure_if_new($post_ID, $thisEnclosure);
3893
3894                 $this->attach_uploads( $post_ID, $post_content );
3895
3896                 // Handle post formats if assigned, value is validated earlier
3897                 // in this function
3898                 if ( isset( $content_struct['wp_post_format'] ) )
3899                         wp_set_post_terms( $post_ID, array( 'post-format-' . $content_struct['wp_post_format'] ), 'post_format' );
3900
3901                 $post_ID = wp_insert_post( $postdata, true );
3902                 if ( is_wp_error( $post_ID ) )
3903                         return new IXR_Error(500, $post_ID->get_error_message());
3904
3905                 if ( !$post_ID )
3906                         return new IXR_Error(500, __('Sorry, your entry could not be posted. Something wrong happened.'));
3907
3908                 do_action( 'xmlrpc_call_success_mw_newPost', $post_ID, $args );
3909
3910                 return strval($post_ID);
3911         }
3912
3913         function add_enclosure_if_new($post_ID, $enclosure) {
3914                 if ( is_array( $enclosure ) && isset( $enclosure['url'] ) && isset( $enclosure['length'] ) && isset( $enclosure['type'] ) ) {
3915
3916                         $encstring = $enclosure['url'] . "\n" . $enclosure['length'] . "\n" . $enclosure['type'];
3917                         $found = false;
3918                         foreach ( (array) get_post_custom($post_ID) as $key => $val) {
3919                                 if ($key == 'enclosure') {
3920                                         foreach ( (array) $val as $enc ) {
3921                                                 if ($enc == $encstring) {
3922                                                         $found = true;
3923                                                         break 2;
3924                                                 }
3925                                         }
3926                                 }
3927                         }
3928                         if (!$found)
3929                                 add_post_meta( $post_ID, 'enclosure', $encstring );
3930                 }
3931         }
3932
3933         /**
3934          * Attach upload to a post.
3935          *
3936          * @since 2.1.0
3937          *
3938          * @param int $post_ID Post ID.
3939          * @param string $post_content Post Content for attachment.
3940          */
3941         function attach_uploads( $post_ID, $post_content ) {
3942                 global $wpdb;
3943
3944                 // find any unattached files
3945                 $attachments = $wpdb->get_results( "SELECT ID, guid FROM {$wpdb->posts} WHERE post_parent = '0' AND post_type = 'attachment'" );
3946                 if ( is_array( $attachments ) ) {
3947                         foreach ( $attachments as $file ) {
3948                                 if ( strpos( $post_content, $file->guid ) !== false )
3949                                         $wpdb->update($wpdb->posts, array('post_parent' => $post_ID), array('ID' => $file->ID) );
3950                         }
3951                 }
3952         }
3953
3954         /**
3955          * Edit a post.
3956          *
3957          * @since 1.5.0
3958          *
3959          * @param array $args Method parameters.
3960          * @return bool True on success.
3961          */
3962         function mw_editPost($args) {
3963
3964                 $this->escape($args);
3965
3966                 $post_ID        = (int) $args[0];
3967                 $username       = $args[1];
3968                 $password       = $args[2];
3969                 $content_struct = $args[3];
3970                 $publish        = isset( $args[4] ) ? $args[4] : 0;
3971
3972                 if ( ! $user = $this->login($username, $password) )
3973                         return $this->error;
3974
3975                 do_action('xmlrpc_call', 'metaWeblog.editPost');
3976
3977                 $postdata = wp_get_single_post( $post_ID, ARRAY_A );
3978
3979                 // If there is no post data for the give post id, stop
3980                 // now and return an error. Other wise a new post will be
3981                 // created (which was the old behavior).
3982                 if ( ! $postdata || empty( $postdata[ 'ID' ] ) )
3983                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
3984
3985                 if ( ! current_user_can( 'edit_post', $post_ID ) )
3986                         return new IXR_Error( 401, __( 'Sorry, you do not have the right to edit this post.' ) );
3987
3988                 // Use wp.editPost to edit post types other than post and page.
3989                 if ( ! in_array( $postdata[ 'post_type' ], array( 'post', 'page' ) ) )
3990                         return new IXR_Error( 401, __( 'Invalid post type' ) );
3991
3992                 // Thwart attempt to change the post type.
3993                 if ( ! empty( $content_struct[ 'post_type' ] ) && ( $content_struct['post_type'] != $postdata[ 'post_type' ] ) )
3994                         return new IXR_Error( 401, __( 'The post type may not be changed.' ) );
3995
3996                 // Check for a valid post format if one was given
3997                 if ( isset( $content_struct['wp_post_format'] ) ) {
3998                         $content_struct['wp_post_format'] = sanitize_key( $content_struct['wp_post_format'] );
3999                         if ( !array_key_exists( $content_struct['wp_post_format'], get_post_format_strings() ) ) {
4000                                 return new IXR_Error( 404, __( 'Invalid post format' ) );
4001                         }
4002                 }
4003
4004                 $this->escape($postdata);
4005                 extract($postdata, EXTR_SKIP);
4006
4007                 // Let WordPress manage slug if none was provided.
4008                 $post_name = "";
4009                 $post_name = $postdata['post_name'];
4010                 if ( isset($content_struct['wp_slug']) )
4011                         $post_name = $content_struct['wp_slug'];
4012
4013                 // Only use a password if one was given.
4014                 if ( isset($content_struct['wp_password']) )
4015                         $post_password = $content_struct['wp_password'];
4016
4017                 // Only set a post parent if one was given.
4018                 if ( isset($content_struct['wp_page_parent_id']) )
4019                         $post_parent = $content_struct['wp_page_parent_id'];
4020
4021                 // Only set the menu_order if it was given.
4022                 if ( isset($content_struct['wp_page_order']) )
4023                         $menu_order = $content_struct['wp_page_order'];
4024
4025                 if ( ! empty( $content_struct['wp_page_template'] ) && 'page' == $post_type )
4026                         $page_template = $content_struct['wp_page_template'];
4027
4028                 $post_author = $postdata['post_author'];
4029
4030                 // Only set the post_author if one is set.
4031                 if ( isset($content_struct['wp_author_id']) && ($user->ID != $content_struct['wp_author_id']) ) {
4032                         switch ( $post_type ) {
4033                                 case 'post':
4034                                         if ( !current_user_can('edit_others_posts') )
4035                                                 return(new IXR_Error(401, __('You are not allowed to change the post author as this user.')));
4036                                         break;
4037                                 case 'page':
4038                                         if ( !current_user_can('edit_others_pages') )
4039                                                 return(new IXR_Error(401, __('You are not allowed to change the page author as this user.')));
4040                                         break;
4041                                 default:
4042                                         return(new IXR_Error(401, __('Invalid post type')));
4043                                         break;
4044                         }
4045                         $post_author = $content_struct['wp_author_id'];
4046                 }
4047
4048                 if ( isset($content_struct['mt_allow_comments']) ) {
4049                         if ( !is_numeric($content_struct['mt_allow_comments']) ) {
4050                                 switch ( $content_struct['mt_allow_comments'] ) {
4051                                         case 'closed':
4052                                                 $comment_status = 'closed';
4053                                                 break;
4054                                         case 'open':
4055                                                 $comment_status = 'open';
4056                                                 break;
4057                                         default:
4058                                                 $comment_status = get_option('default_comment_status');
4059                                                 break;
4060                                 }
4061                         } else {
4062                                 switch ( (int) $content_struct['mt_allow_comments'] ) {
4063                                         case 0:
4064                                         case 2:
4065                                                 $comment_status = 'closed';
4066                                                 break;
4067                                         case 1:
4068                                                 $comment_status = 'open';
4069                                                 break;
4070                                         default:
4071                                                 $comment_status = get_option('default_comment_status');
4072                                                 break;
4073                                 }
4074                         }
4075                 }
4076
4077                 if ( isset($content_struct['mt_allow_pings']) ) {
4078                         if ( !is_numeric($content_struct['mt_allow_pings']) ) {
4079                                 switch ( $content_struct['mt_allow_pings'] ) {
4080                                         case 'closed':
4081                                                 $ping_status = 'closed';
4082                                                 break;
4083                                         case 'open':
4084                                                 $ping_status = 'open';
4085                                                 break;
4086                                         default:
4087                                                 $ping_status = get_option('default_ping_status');
4088                                                 break;
4089                                 }
4090                         } else {
4091                                 switch ( (int) $content_struct["mt_allow_pings"] ) {
4092                                         case 0:
4093                                                 $ping_status = 'closed';
4094                                                 break;
4095                                         case 1:
4096                                                 $ping_status = 'open';
4097                                                 break;
4098                                         default:
4099                                                 $ping_status = get_option('default_ping_status');
4100                                                 break;
4101                                 }
4102                         }
4103                 }
4104
4105                 if ( isset( $content_struct['title'] ) )
4106                         $post_title =  $content_struct['title'];
4107
4108                 if ( isset( $content_struct['description'] ) )
4109                         $post_content = $content_struct['description'];
4110
4111                 $post_category = array();
4112                 if ( isset( $content_struct['categories'] ) ) {
4113                         $catnames = $content_struct['categories'];
4114                         if ( is_array($catnames) ) {
4115                                 foreach ($catnames as $cat) {
4116                                         $post_category[] = get_cat_ID($cat);
4117                                 }
4118                         }
4119                 }
4120
4121                 if ( isset( $content_struct['mt_excerpt'] ) )
4122                         $post_excerpt =  $content_struct['mt_excerpt'];
4123
4124                 $post_more = isset( $content_struct['mt_text_more'] ) ? $content_struct['mt_text_more'] : null;
4125
4126                 $post_status = $publish ? 'publish' : 'draft';
4127                 if ( isset( $content_struct["{$post_type}_status"] ) ) {
4128                         switch( $content_struct["{$post_type}_status"] ) {
4129                                 case 'draft':
4130                                 case 'pending':
4131                                 case 'private':
4132                                 case 'publish':
4133                                         $post_status = $content_struct["{$post_type}_status"];
4134                                         break;
4135                                 default:
4136                                         $post_status = $publish ? 'publish' : 'draft';
4137                                         break;
4138                         }
4139                 }
4140
4141                 $tags_input = isset( $content_struct['mt_keywords'] ) ? $content_struct['mt_keywords'] : null;
4142
4143                 if ( ('publish' == $post_status) ) {
4144                         if ( ( 'page' == $post_type ) && !current_user_can('publish_pages') )
4145                                 return new IXR_Error(401, __('Sorry, you do not have the right to publish this page.'));
4146                         else if ( !current_user_can('publish_posts') )
4147                                 return new IXR_Error(401, __('Sorry, you do not have the right to publish this post.'));
4148                 }
4149
4150                 if ( $post_more )
4151                         $post_content = $post_content . "<!--more-->" . $post_more;
4152
4153                 $to_ping = null;
4154                 if ( isset( $content_struct['mt_tb_ping_urls'] ) ) {
4155                         $to_ping = $content_struct['mt_tb_ping_urls'];
4156                         if ( is_array($to_ping) )
4157                                 $to_ping = implode(' ', $to_ping);
4158                 }
4159
4160                 // Do some timestamp voodoo
4161                 if ( !empty( $content_struct['date_created_gmt'] ) )
4162                         // We know this is supposed to be GMT, so we're going to slap that Z on there by force
4163                         $dateCreated = rtrim( $content_struct['date_created_gmt']->getIso(), 'Z' ) . 'Z';
4164                 elseif ( !empty( $content_struct['dateCreated']) )
4165                         $dateCreated = $content_struct['dateCreated']->getIso();
4166
4167                 if ( !empty( $dateCreated ) ) {
4168                         $post_date = get_date_from_gmt(iso8601_to_datetime($dateCreated));
4169                         $post_date_gmt = iso8601_to_datetime($dateCreated, 'GMT');
4170                 } else {
4171                         $post_date     = $postdata['post_date'];
4172                         $post_date_gmt = $postdata['post_date_gmt'];
4173                 }
4174
4175                 // We've got all the data -- post it:
4176                 $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');
4177
4178                 $result = wp_update_post($newpost, true);
4179                 if ( is_wp_error( $result ) )
4180                         return new IXR_Error(500, $result->get_error_message());
4181
4182                 if ( !$result )
4183                         return new IXR_Error(500, __('Sorry, your entry could not be edited. Something wrong happened.'));
4184
4185                 // Only posts can be sticky
4186                 if ( $post_type == 'post' && isset( $content_struct['sticky'] ) ) {
4187                         if ( $content_struct['sticky'] == true )
4188                                 stick_post( $post_ID );
4189                         elseif ( $content_struct['sticky'] == false )
4190                                 unstick_post( $post_ID );
4191                 }
4192
4193                 if ( isset($content_struct['custom_fields']) )
4194                         $this->set_custom_fields($post_ID, $content_struct['custom_fields']);
4195
4196                 if ( isset ( $content_struct['wp_post_thumbnail'] ) ) {
4197                         // empty value deletes, non-empty value adds/updates
4198                         if ( empty( $content_struct['wp_post_thumbnail'] ) ) {
4199                                 delete_post_thumbnail( $post_ID );
4200                         } else {
4201                                 if ( set_post_thumbnail( $post_ID, $content_struct['wp_post_thumbnail'] ) === false )
4202                                         return new IXR_Error( 404, __( 'Invalid attachment ID.' ) );
4203                         }
4204                         unset( $content_struct['wp_post_thumbnail'] );
4205                 }
4206
4207                 // Handle enclosures
4208                 $thisEnclosure = isset($content_struct['enclosure']) ? $content_struct['enclosure'] : null;
4209                 $this->add_enclosure_if_new($post_ID, $thisEnclosure);
4210
4211                 $this->attach_uploads( $ID, $post_content );
4212
4213                 // Handle post formats if assigned, validation is handled
4214                 // earlier in this function
4215                 if ( isset( $content_struct['wp_post_format'] ) )
4216                         wp_set_post_terms( $post_ID, array( 'post-format-' . $content_struct['wp_post_format'] ), 'post_format' );
4217
4218                 do_action( 'xmlrpc_call_success_mw_editPost', $post_ID, $args );
4219
4220                 return true;
4221         }
4222
4223         /**
4224          * Retrieve post.
4225          *
4226          * @since 1.5.0
4227          *
4228          * @param array $args Method parameters.
4229          * @return array
4230          */
4231         function mw_getPost($args) {
4232
4233                 $this->escape($args);
4234
4235                 $post_ID     = (int) $args[0];
4236                 $username  = $args[1];
4237                 $password   = $args[2];
4238
4239                 if ( !$user = $this->login($username, $password) )
4240                         return $this->error;
4241
4242                 $postdata = wp_get_single_post($post_ID, ARRAY_A);
4243                 if ( ! $postdata )
4244                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
4245
4246                 if ( !current_user_can( 'edit_post', $post_ID ) )
4247                         return new IXR_Error( 401, __( 'Sorry, you cannot edit this post.' ) );
4248
4249                 do_action('xmlrpc_call', 'metaWeblog.getPost');
4250
4251                 if ($postdata['post_date'] != '') {
4252                         $post_date = $this->_convert_date( $postdata['post_date'] );
4253                         $post_date_gmt = $this->_convert_date_gmt( $postdata['post_date_gmt'],  $postdata['post_date'] );
4254                         $post_modified = $this->_convert_date( $postdata['post_modified'] );
4255                         $post_modified_gmt = $this->_convert_date_gmt( $postdata['post_modified_gmt'], $postdata['post_modified'] );
4256
4257                         $categories = array();
4258                         $catids = wp_get_post_categories($post_ID);
4259                         foreach($catids as $catid)
4260                                 $categories[] = get_cat_name($catid);
4261
4262                         $tagnames = array();
4263                         $tags = wp_get_post_tags( $post_ID );
4264                         if ( !empty( $tags ) ) {
4265                                 foreach ( $tags as $tag )
4266                                         $tagnames[] = $tag->name;
4267                                 $tagnames = implode( ', ', $tagnames );
4268                         } else {
4269                                 $tagnames = '';
4270                         }
4271
4272                         $post = get_extended($postdata['post_content']);
4273                         $link = post_permalink($postdata['ID']);
4274
4275                         // Get the author info.
4276                         $author = get_userdata($postdata['post_author']);
4277
4278                         $allow_comments = ('open' == $postdata['comment_status']) ? 1 : 0;
4279                         $allow_pings = ('open' == $postdata['ping_status']) ? 1 : 0;
4280
4281                         // Consider future posts as published
4282                         if ( $postdata['post_status'] === 'future' )
4283                                 $postdata['post_status'] = 'publish';
4284
4285                         // Get post format
4286                         $post_format = get_post_format( $post_ID );
4287                         if ( empty( $post_format ) )
4288                                 $post_format = 'standard';
4289
4290                         $sticky = false;
4291                         if ( is_sticky( $post_ID ) )
4292                                 $sticky = true;
4293
4294                         $enclosure = array();
4295                         foreach ( (array) get_post_custom($post_ID) as $key => $val) {
4296                                 if ($key == 'enclosure') {
4297                                         foreach ( (array) $val as $enc ) {
4298                                                 $encdata = explode("\n", $enc);
4299                                                 $enclosure['url'] = trim(htmlspecialchars($encdata[0]));
4300                                                 $enclosure['length'] = (int) trim($encdata[1]);
4301                                                 $enclosure['type'] = trim($encdata[2]);
4302                                                 break 2;
4303                                         }
4304                                 }
4305                         }
4306
4307                         $resp = array(
4308                                 'dateCreated' => $post_date,
4309                                 'userid' => $postdata['post_author'],
4310                                 'postid' => $postdata['ID'],
4311                                 'description' => $post['main'],
4312                                 'title' => $postdata['post_title'],
4313                                 'link' => $link,
4314                                 'permaLink' => $link,
4315                                 // commented out because no other tool seems to use this
4316                                 //            'content' => $entry['post_content'],
4317                                 'categories' => $categories,
4318                                 'mt_excerpt' => $postdata['post_excerpt'],
4319                                 'mt_text_more' => $post['extended'],
4320                                 'wp_more_text' => $post['more_text'],
4321                                 'mt_allow_comments' => $allow_comments,
4322                                 'mt_allow_pings' => $allow_pings,
4323                                 'mt_keywords' => $tagnames,
4324                                 'wp_slug' => $postdata['post_name'],
4325                                 'wp_password' => $postdata['post_password'],
4326                                 'wp_author_id' => (string) $author->ID,
4327                                 'wp_author_display_name' => $author->display_name,
4328                                 'date_created_gmt' => $post_date_gmt,
4329                                 'post_status' => $postdata['post_status'],
4330                                 'custom_fields' => $this->get_custom_fields($post_ID),
4331                                 'wp_post_format' => $post_format,
4332                                 'sticky' => $sticky,
4333                                 'date_modified' => $post_modified,
4334                                 'date_modified_gmt' => $post_modified_gmt
4335                         );
4336
4337                         if ( !empty($enclosure) ) $resp['enclosure'] = $enclosure;
4338
4339                         $resp['wp_post_thumbnail'] = get_post_thumbnail_id( $postdata['ID'] );
4340
4341                         return $resp;
4342                 } else {
4343                         return new IXR_Error(404, __('Sorry, no such post.'));
4344                 }
4345         }
4346
4347         /**
4348          * Retrieve list of recent posts.
4349          *
4350          * @since 1.5.0
4351          *
4352          * @param array $args Method parameters.
4353          * @return array
4354          */
4355         function mw_getRecentPosts($args) {
4356
4357                 $this->escape($args);
4358
4359                 $blog_ID     = (int) $args[0];
4360                 $username  = $args[1];
4361                 $password   = $args[2];
4362                 if ( isset( $args[3] ) )
4363                         $query = array( 'numberposts' => absint( $args[3] ) );
4364                 else
4365                         $query = array();
4366
4367                 if ( !$user = $this->login($username, $password) )
4368                         return $this->error;
4369
4370                 do_action('xmlrpc_call', 'metaWeblog.getRecentPosts');
4371
4372                 $posts_list = wp_get_recent_posts( $query );
4373
4374                 if ( !$posts_list )
4375                         return array();
4376
4377                 foreach ($posts_list as $entry) {
4378                         if ( !current_user_can( 'edit_post', $entry['ID'] ) )
4379                                 continue;
4380
4381                         $post_date = $this->_convert_date( $entry['post_date'] );
4382                         $post_date_gmt = $this->_convert_date_gmt( $entry['post_date_gmt'], $entry['post_date'] );
4383                         $post_modified = $this->_convert_date( $entry['post_modified'] );
4384                         $post_modified_gmt = $this->_convert_date_gmt( $entry['post_modified_gmt'], $entry['post_modified'] );
4385
4386                         $categories = array();
4387                         $catids = wp_get_post_categories($entry['ID']);
4388                         foreach( $catids as $catid )
4389                                 $categories[] = get_cat_name($catid);
4390
4391                         $tagnames = array();
4392                         $tags = wp_get_post_tags( $entry['ID'] );
4393                         if ( !empty( $tags ) ) {
4394                                 foreach ( $tags as $tag ) {
4395                                         $tagnames[] = $tag->name;
4396                                 }
4397                                 $tagnames = implode( ', ', $tagnames );
4398                         } else {
4399                                 $tagnames = '';
4400                         }
4401
4402                         $post = get_extended($entry['post_content']);
4403                         $link = post_permalink($entry['ID']);
4404
4405                         // Get the post author info.
4406                         $author = get_userdata($entry['post_author']);
4407
4408                         $allow_comments = ('open' == $entry['comment_status']) ? 1 : 0;
4409                         $allow_pings = ('open' == $entry['ping_status']) ? 1 : 0;
4410
4411                         // Consider future posts as published
4412                         if ( $entry['post_status'] === 'future' )
4413                                 $entry['post_status'] = 'publish';
4414
4415                         // Get post format
4416                         $post_format = get_post_format( $entry['ID'] );
4417                         if ( empty( $post_format ) )
4418                                 $post_format = 'standard';
4419
4420                         $struct[] = array(
4421                                 'dateCreated' => $post_date,
4422                                 'userid' => $entry['post_author'],
4423                                 'postid' => (string) $entry['ID'],
4424                                 'description' => $post['main'],
4425                                 'title' => $entry['post_title'],
4426                                 'link' => $link,
4427                                 'permaLink' => $link,
4428                                 // commented out because no other tool seems to use this
4429                                 // 'content' => $entry['post_content'],
4430                                 'categories' => $categories,
4431                                 'mt_excerpt' => $entry['post_excerpt'],
4432                                 'mt_text_more' => $post['extended'],
4433                                 'wp_more_text' => $post['more_text'],
4434                                 'mt_allow_comments' => $allow_comments,
4435                                 'mt_allow_pings' => $allow_pings,
4436                                 'mt_keywords' => $tagnames,
4437                                 'wp_slug' => $entry['post_name'],
4438                                 'wp_password' => $entry['post_password'],
4439                                 'wp_author_id' => (string) $author->ID,
4440                                 'wp_author_display_name' => $author->display_name,
4441                                 'date_created_gmt' => $post_date_gmt,
4442                                 'post_status' => $entry['post_status'],
4443                                 'custom_fields' => $this->get_custom_fields($entry['ID']),
4444                                 'wp_post_format' => $post_format,
4445                                 'date_modified' => $post_modified,
4446                                 'date_modified_gmt' => $post_modified_gmt
4447                         );
4448
4449                         $entry_index = count( $struct ) - 1;
4450                         $struct[ $entry_index ][ 'wp_post_thumbnail' ] = get_post_thumbnail_id( $entry['ID'] );
4451                 }
4452
4453                 $recent_posts = array();
4454                 for ( $j=0; $j<count($struct); $j++ ) {
4455                         array_push($recent_posts, $struct[$j]);
4456                 }
4457
4458                 return $recent_posts;
4459         }
4460
4461         /**
4462          * Retrieve the list of categories on a given blog.
4463          *
4464          * @since 1.5.0
4465          *
4466          * @param array $args Method parameters.
4467          * @return array
4468          */
4469         function mw_getCategories($args) {
4470
4471                 $this->escape($args);
4472
4473                 $blog_ID     = (int) $args[0];
4474                 $username  = $args[1];
4475                 $password   = $args[2];
4476
4477                 if ( !$user = $this->login($username, $password) )
4478                         return $this->error;
4479
4480                 if ( !current_user_can( 'edit_posts' ) )
4481                         return new IXR_Error( 401, __( 'Sorry, you must be able to edit posts on this site in order to view categories.' ) );
4482
4483                 do_action('xmlrpc_call', 'metaWeblog.getCategories');
4484
4485                 $categories_struct = array();
4486
4487                 if ( $cats = get_categories(array('get' => 'all')) ) {
4488                         foreach ( $cats as $cat ) {
4489                                 $struct['categoryId'] = $cat->term_id;
4490                                 $struct['parentId'] = $cat->parent;
4491                                 $struct['description'] = $cat->name;
4492                                 $struct['categoryDescription'] = $cat->description;
4493                                 $struct['categoryName'] = $cat->name;
4494                                 $struct['htmlUrl'] = esc_html(get_category_link($cat->term_id));
4495                                 $struct['rssUrl'] = esc_html(get_category_feed_link($cat->term_id, 'rss2'));
4496
4497                                 $categories_struct[] = $struct;
4498                         }
4499                 }
4500
4501                 return $categories_struct;
4502         }
4503
4504         /**
4505          * Uploads a file, following your settings.
4506          *
4507          * Adapted from a patch by Johann Richard.
4508          *
4509          * @link http://mycvs.org/archives/2004/06/30/file-upload-to-wordpress-in-ecto/
4510          *
4511          * @since 1.5.0
4512          *
4513          * @param array $args Method parameters.
4514          * @return array
4515          */
4516         function mw_newMediaObject($args) {
4517                 global $wpdb;
4518
4519                 $blog_ID     = (int) $args[0];
4520                 $username  = $wpdb->escape($args[1]);
4521                 $password   = $wpdb->escape($args[2]);
4522                 $data        = $args[3];
4523
4524                 $name = sanitize_file_name( $data['name'] );
4525                 $type = $data['type'];
4526                 $bits = $data['bits'];
4527
4528                 if ( !$user = $this->login($username, $password) )
4529                         return $this->error;
4530
4531                 do_action('xmlrpc_call', 'metaWeblog.newMediaObject');
4532
4533                 if ( !current_user_can('upload_files') ) {
4534                         $this->error = new IXR_Error( 401, __( 'You do not have permission to upload files.' ) );
4535                         return $this->error;
4536                 }
4537
4538                 if ( $upload_err = apply_filters( 'pre_upload_error', false ) )
4539                         return new IXR_Error(500, $upload_err);
4540
4541                 if ( !empty($data['overwrite']) && ($data['overwrite'] == true) ) {
4542                         // Get postmeta info on the object.
4543                         $old_file = $wpdb->get_row("
4544                                 SELECT ID
4545                                 FROM {$wpdb->posts}
4546                                 WHERE post_title = '{$name}'
4547                                         AND post_type = 'attachment'
4548                         ");
4549
4550                         // Delete previous file.
4551                         wp_delete_attachment($old_file->ID);
4552
4553                         // Make sure the new name is different by pre-pending the
4554                         // previous post id.
4555                         $filename = preg_replace('/^wpid\d+-/', '', $name);
4556                         $name = "wpid{$old_file->ID}-{$filename}";
4557                 }
4558
4559                 $upload = wp_upload_bits($name, null, $bits);
4560                 if ( ! empty($upload['error']) ) {
4561                         $errorString = sprintf(__('Could not write file %1$s (%2$s)'), $name, $upload['error']);
4562                         return new IXR_Error(500, $errorString);
4563                 }
4564                 // Construct the attachment array
4565                 // attach to post_id 0
4566                 $post_id = 0;
4567                 $attachment = array(
4568                         'post_title' => $name,
4569                         'post_content' => '',
4570                         'post_type' => 'attachment',
4571                         'post_parent' => $post_id,
4572                         'post_mime_type' => $type,
4573                         'guid' => $upload[ 'url' ]
4574                 );
4575
4576                 // Save the data
4577                 $id = wp_insert_attachment( $attachment, $upload[ 'file' ], $post_id );
4578                 wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $upload['file'] ) );
4579
4580                 do_action( 'xmlrpc_call_success_mw_newMediaObject', $id, $args );
4581
4582                 $struct = array(
4583                         'id'   => strval( $id ),
4584                         'file' => $name,
4585                         'url'  => $upload[ 'url' ],
4586                         'type' => $type
4587                 );
4588                 return apply_filters( 'wp_handle_upload', $struct, 'upload' );
4589         }
4590
4591         /* MovableType API functions
4592          * specs on http://www.movabletype.org/docs/mtmanual_programmatic.html
4593          */
4594
4595         /**
4596          * Retrieve the post titles of recent posts.
4597          *
4598          * @since 1.5.0
4599          *
4600          * @param array $args Method parameters.
4601          * @return array
4602          */
4603         function mt_getRecentPostTitles($args) {
4604
4605                 $this->escape($args);
4606
4607                 $blog_ID     = (int) $args[0];
4608                 $username  = $args[1];
4609                 $password   = $args[2];
4610                 if ( isset( $args[3] ) )
4611                         $query = array( 'numberposts' => absint( $args[3] ) );
4612                 else
4613                         $query = array();
4614
4615                 if ( !$user = $this->login($username, $password) )
4616                         return $this->error;
4617
4618                 do_action('xmlrpc_call', 'mt.getRecentPostTitles');
4619
4620                 $posts_list = wp_get_recent_posts( $query );
4621
4622                 if ( !$posts_list ) {
4623                         $this->error = new IXR_Error(500, __('Either there are no posts, or something went wrong.'));
4624                         return $this->error;
4625                 }
4626
4627                 $struct = array();
4628
4629                 foreach ($posts_list as $entry) {
4630                         if ( !current_user_can( 'edit_post', $entry['ID'] ) )
4631                                 continue;
4632
4633                         $post_date = $this->_convert_date( $entry['post_date'] );
4634                         $post_date_gmt = $this->_convert_date_gmt( $entry['post_date_gmt'], $entry['post_date'] );
4635
4636                         $struct[] = array(
4637                                 'dateCreated' => $post_date,
4638                                 'userid' => $entry['post_author'],
4639                                 'postid' => (string) $entry['ID'],
4640                                 'title' => $entry['post_title'],
4641                                 'post_status' => $entry['post_status'],
4642                                 'date_created_gmt' => $post_date_gmt
4643                         );
4644
4645                 }
4646
4647                 $recent_posts = array();
4648                 for ( $j=0; $j<count($struct); $j++ ) {
4649                         array_push($recent_posts, $struct[$j]);
4650                 }
4651
4652                 return $recent_posts;
4653         }
4654
4655         /**
4656          * Retrieve list of all categories on blog.
4657          *
4658          * @since 1.5.0
4659          *
4660          * @param array $args Method parameters.
4661          * @return array
4662          */
4663         function mt_getCategoryList($args) {
4664
4665                 $this->escape($args);
4666
4667                 $blog_ID     = (int) $args[0];
4668                 $username  = $args[1];
4669                 $password   = $args[2];
4670
4671                 if ( !$user = $this->login($username, $password) )
4672                         return $this->error;
4673
4674                 if ( !current_user_can( 'edit_posts' ) )
4675                         return new IXR_Error( 401, __( 'Sorry, you must be able to edit posts on this site in order to view categories.' ) );
4676
4677                 do_action('xmlrpc_call', 'mt.getCategoryList');
4678
4679                 $categories_struct = array();
4680
4681                 if ( $cats = get_categories(array('hide_empty' => 0, 'hierarchical' => 0)) ) {
4682                         foreach ( $cats as $cat ) {
4683                                 $struct['categoryId'] = $cat->term_id;
4684                                 $struct['categoryName'] = $cat->name;
4685
4686                                 $categories_struct[] = $struct;
4687                         }
4688                 }
4689
4690                 return $categories_struct;
4691         }
4692
4693         /**
4694          * Retrieve post categories.
4695          *
4696          * @since 1.5.0
4697          *
4698          * @param array $args Method parameters.
4699          * @return array
4700          */
4701         function mt_getPostCategories($args) {
4702
4703                 $this->escape($args);
4704
4705                 $post_ID     = (int) $args[0];
4706                 $username  = $args[1];
4707                 $password   = $args[2];
4708
4709                 if ( !$user = $this->login($username, $password) )
4710                         return $this->error;
4711
4712                 if ( ! get_post( $post_ID ) )
4713                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
4714
4715                 if ( !current_user_can( 'edit_post', $post_ID ) )
4716                         return new IXR_Error( 401, __( 'Sorry, you can not edit this post.' ) );
4717
4718                 do_action('xmlrpc_call', 'mt.getPostCategories');
4719
4720                 $categories = array();
4721                 $catids = wp_get_post_categories(intval($post_ID));
4722                 // first listed category will be the primary category
4723                 $isPrimary = true;
4724                 foreach ( $catids as $catid ) {
4725                         $categories[] = array(
4726                                 'categoryName' => get_cat_name($catid),
4727                                 'categoryId' => (string) $catid,
4728                                 'isPrimary' => $isPrimary
4729                         );
4730                         $isPrimary = false;
4731                 }
4732
4733                 return $categories;
4734         }
4735
4736         /**
4737          * Sets categories for a post.
4738          *
4739          * @since 1.5.0
4740          *
4741          * @param array $args Method parameters.
4742          * @return bool True on success.
4743          */
4744         function mt_setPostCategories($args) {
4745
4746                 $this->escape($args);
4747
4748                 $post_ID     = (int) $args[0];
4749                 $username  = $args[1];
4750                 $password   = $args[2];
4751                 $categories  = $args[3];
4752
4753                 if ( !$user = $this->login($username, $password) )
4754                         return $this->error;
4755
4756                 do_action('xmlrpc_call', 'mt.setPostCategories');
4757
4758                 if ( ! get_post( $post_ID ) )
4759                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
4760
4761                 if ( !current_user_can('edit_post', $post_ID) )
4762                         return new IXR_Error(401, __('Sorry, you cannot edit this post.'));
4763
4764                 foreach ( $categories as $cat ) {
4765                         $catids[] = $cat['categoryId'];
4766                 }
4767
4768                 wp_set_post_categories($post_ID, $catids);
4769
4770                 return true;
4771         }
4772
4773         /**
4774          * Retrieve an array of methods supported by this server.
4775          *
4776          * @since 1.5.0
4777          *
4778          * @param array $args Method parameters.
4779          * @return array
4780          */
4781         function mt_supportedMethods($args) {
4782
4783                 do_action('xmlrpc_call', 'mt.supportedMethods');
4784
4785                 $supported_methods = array();
4786                 foreach ( $this->methods as $key => $value ) {
4787                         $supported_methods[] = $key;
4788                 }
4789
4790                 return $supported_methods;
4791         }
4792
4793         /**
4794          * Retrieve an empty array because we don't support per-post text filters.
4795          *
4796          * @since 1.5.0
4797          *
4798          * @param array $args Method parameters.
4799          */
4800         function mt_supportedTextFilters($args) {
4801                 do_action('xmlrpc_call', 'mt.supportedTextFilters');
4802                 return apply_filters('xmlrpc_text_filters', array());
4803         }
4804
4805         /**
4806          * Retrieve trackbacks sent to a given post.
4807          *
4808          * @since 1.5.0
4809          *
4810          * @param array $args Method parameters.
4811          * @return mixed
4812          */
4813         function mt_getTrackbackPings($args) {
4814
4815                 global $wpdb;
4816
4817                 $post_ID = intval($args);
4818
4819                 do_action('xmlrpc_call', 'mt.getTrackbackPings');
4820
4821                 $actual_post = wp_get_single_post($post_ID, ARRAY_A);
4822
4823                 if ( !$actual_post )
4824                         return new IXR_Error(404, __('Sorry, no such post.'));
4825
4826                 $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", $post_ID) );
4827
4828                 if ( !$comments )
4829                         return array();
4830
4831                 $trackback_pings = array();
4832                 foreach ( $comments as $comment ) {
4833                         if ( 'trackback' == $comment->comment_type ) {
4834                                 $content = $comment->comment_content;
4835                                 $title = substr($content, 8, (strpos($content, '</strong>') - 8));
4836                                 $trackback_pings[] = array(
4837                                         'pingTitle' => $title,
4838                                         'pingURL'   => $comment->comment_author_url,
4839                                         'pingIP'    => $comment->comment_author_IP
4840                                 );
4841                         }
4842                 }
4843
4844                 return $trackback_pings;
4845         }
4846
4847         /**
4848          * Sets a post's publish status to 'publish'.
4849          *
4850          * @since 1.5.0
4851          *
4852          * @param array $args Method parameters.
4853          * @return int
4854          */
4855         function mt_publishPost($args) {
4856
4857                 $this->escape($args);
4858
4859                 $post_ID     = (int) $args[0];
4860                 $username  = $args[1];
4861                 $password   = $args[2];
4862
4863                 if ( !$user = $this->login($username, $password) )
4864                         return $this->error;
4865
4866                 do_action('xmlrpc_call', 'mt.publishPost');
4867
4868                 $postdata = wp_get_single_post($post_ID, ARRAY_A);
4869                 if ( ! $postdata )
4870                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
4871
4872                 if ( !current_user_can('publish_posts') || !current_user_can('edit_post', $post_ID) )
4873                         return new IXR_Error(401, __('Sorry, you cannot publish this post.'));
4874
4875                 $postdata['post_status'] = 'publish';
4876
4877                 // retain old cats
4878                 $cats = wp_get_post_categories($post_ID);
4879                 $postdata['post_category'] = $cats;
4880                 $this->escape($postdata);
4881
4882                 $result = wp_update_post($postdata);
4883
4884                 return $result;
4885         }
4886
4887         /* PingBack functions
4888          * specs on www.hixie.ch/specs/pingback/pingback
4889          */
4890
4891         /**
4892          * Retrieves a pingback and registers it.
4893          *
4894          * @since 1.5.0
4895          *
4896          * @param array $args Method parameters.
4897          * @return array
4898          */
4899         function pingback_ping($args) {
4900                 global $wpdb;
4901
4902                 do_action('xmlrpc_call', 'pingback.ping');
4903
4904                 $this->escape($args);
4905
4906                 $pagelinkedfrom = $args[0];
4907                 $pagelinkedto   = $args[1];
4908
4909                 $title = '';
4910
4911                 $pagelinkedfrom = str_replace('&amp;', '&', $pagelinkedfrom);
4912                 $pagelinkedto = str_replace('&amp;', '&', $pagelinkedto);
4913                 $pagelinkedto = str_replace('&', '&amp;', $pagelinkedto);
4914
4915                 // Check if the page linked to is in our site
4916                 $pos1 = strpos($pagelinkedto, str_replace(array('http://www.','http://','https://www.','https://'), '', get_option('home')));
4917                 if ( !$pos1 )
4918                         return new IXR_Error(0, __('Is there no link to us?'));
4919
4920                 // let's find which post is linked to
4921                 // FIXME: does url_to_postid() cover all these cases already?
4922                 //        if so, then let's use it and drop the old code.
4923                 $urltest = parse_url($pagelinkedto);
4924                 if ( $post_ID = url_to_postid($pagelinkedto) ) {
4925                         $way = 'url_to_postid()';
4926                 } elseif ( preg_match('#p/[0-9]{1,}#', $urltest['path'], $match) ) {
4927                         // the path defines the post_ID (archives/p/XXXX)
4928                         $blah = explode('/', $match[0]);
4929                         $post_ID = (int) $blah[1];
4930                         $way = 'from the path';
4931                 } elseif ( preg_match('#p=[0-9]{1,}#', $urltest['query'], $match) ) {
4932                         // the querystring defines the post_ID (?p=XXXX)
4933                         $blah = explode('=', $match[0]);
4934                         $post_ID = (int) $blah[1];
4935                         $way = 'from the querystring';
4936                 } elseif ( isset($urltest['fragment']) ) {
4937                         // an #anchor is there, it's either...
4938                         if ( intval($urltest['fragment']) ) {
4939                                 // ...an integer #XXXX (simplest case)
4940                                 $post_ID = (int) $urltest['fragment'];
4941                                 $way = 'from the fragment (numeric)';
4942                         } elseif ( preg_match('/post-[0-9]+/',$urltest['fragment']) ) {
4943                                 // ...a post id in the form 'post-###'
4944                                 $post_ID = preg_replace('/[^0-9]+/', '', $urltest['fragment']);
4945                                 $way = 'from the fragment (post-###)';
4946                         } elseif ( is_string($urltest['fragment']) ) {
4947                                 // ...or a string #title, a little more complicated
4948                                 $title = preg_replace('/[^a-z0-9]/i', '.', $urltest['fragment']);
4949                                 $sql = $wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE post_title RLIKE %s", like_escape( $title ) );
4950                                 if (! ($post_ID = $wpdb->get_var($sql)) ) {
4951                                         // returning unknown error '0' is better than die()ing
4952                                         return new IXR_Error(0, '');
4953                                 }
4954                                 $way = 'from the fragment (title)';
4955                         }
4956                 } else {
4957                         // TODO: Attempt to extract a post ID from the given URL
4958                         return new IXR_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.'));
4959                 }
4960                 $post_ID = (int) $post_ID;
4961
4962                 $post = get_post($post_ID);
4963
4964                 if ( !$post ) // Post_ID not found
4965                         return new IXR_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.'));
4966
4967                 if ( $post_ID == url_to_postid($pagelinkedfrom) )
4968                         return new IXR_Error(0, __('The source URL and the target URL cannot both point to the same resource.'));
4969
4970                 // Check if pings are on
4971                 if ( !pings_open($post) )
4972                         return new IXR_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.'));
4973
4974                 // Let's check that the remote site didn't already pingback this entry
4975                 if ( $wpdb->get_results( $wpdb->prepare("SELECT * FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_author_url = %s", $post_ID, $pagelinkedfrom) ) )
4976                         return new IXR_Error( 48, __( 'The pingback has already been registered.' ) );
4977
4978                 // very stupid, but gives time to the 'from' server to publish !
4979                 sleep(1);
4980
4981                 // Let's check the remote site
4982                 $linea = wp_remote_fopen( $pagelinkedfrom );
4983                 if ( !$linea )
4984                         return new IXR_Error(16, __('The source URL does not exist.'));
4985
4986                 $linea = apply_filters('pre_remote_source', $linea, $pagelinkedto);
4987
4988                 // Work around bug in strip_tags():
4989                 $linea = str_replace('<!DOC', '<DOC', $linea);
4990                 $linea = preg_replace( '/[\s\r\n\t]+/', ' ', $linea ); // normalize spaces
4991                 $linea = preg_replace( "/ <(h1|h2|h3|h4|h5|h6|p|th|td|li|dt|dd|pre|caption|input|textarea|button|body)[^>]*>/", "\n\n", $linea );
4992
4993                 preg_match('|<title>([^<]*?)</title>|is', $linea, $matchtitle);
4994                 $title = $matchtitle[1];
4995                 if ( empty( $title ) )
4996                         return new IXR_Error(32, __('We cannot find a title on that page.'));
4997
4998                 $linea = strip_tags( $linea, '<a>' ); // just keep the tag we need
4999
5000                 $p = explode( "\n\n", $linea );
5001
5002                 $preg_target = preg_quote($pagelinkedto, '|');
5003
5004                 foreach ( $p as $para ) {
5005                         if ( strpos($para, $pagelinkedto) !== false ) { // it exists, but is it a link?
5006                                 preg_match("|<a[^>]+?".$preg_target."[^>]*>([^>]+?)</a>|", $para, $context);
5007
5008                                 // If the URL isn't in a link context, keep looking
5009                                 if ( empty($context) )
5010                                         continue;
5011
5012                                 // We're going to use this fake tag to mark the context in a bit
5013                                 // the marker is needed in case the link text appears more than once in the paragraph
5014                                 $excerpt = preg_replace('|\</?wpcontext\>|', '', $para);
5015
5016                                 // prevent really long link text
5017                                 if ( strlen($context[1]) > 100 )
5018                                         $context[1] = substr($context[1], 0, 100) . '...';
5019
5020                                 $marker = '<wpcontext>'.$context[1].'</wpcontext>';    // set up our marker
5021                                 $excerpt= str_replace($context[0], $marker, $excerpt); // swap out the link for our marker
5022                                 $excerpt = strip_tags($excerpt, '<wpcontext>');        // strip all tags but our context marker
5023                                 $excerpt = trim($excerpt);
5024                                 $preg_marker = preg_quote($marker, '|');
5025                                 $excerpt = preg_replace("|.*?\s(.{0,100}$preg_marker.{0,100})\s.*|s", '$1', $excerpt);
5026                                 $excerpt = strip_tags($excerpt); // YES, again, to remove the marker wrapper
5027                                 break;
5028                         }
5029                 }
5030
5031                 if ( empty($context) ) // Link to target not found
5032                         return new IXR_Error(17, __('The source URL does not contain a link to the target URL, and so cannot be used as a source.'));
5033
5034                 $pagelinkedfrom = str_replace('&', '&amp;', $pagelinkedfrom);
5035
5036                 $context = '[...] ' . esc_html( $excerpt ) . ' [...]';
5037                 $pagelinkedfrom = $wpdb->escape( $pagelinkedfrom );
5038
5039                 $comment_post_ID = (int) $post_ID;
5040                 $comment_author = $title;
5041                 $comment_author_email = '';
5042                 $this->escape($comment_author);
5043                 $comment_author_url = $pagelinkedfrom;
5044                 $comment_content = $context;
5045                 $this->escape($comment_content);
5046                 $comment_type = 'pingback';
5047
5048                 $commentdata = compact('comment_post_ID', 'comment_author', 'comment_author_url', 'comment_author_email', 'comment_content', 'comment_type');
5049
5050                 $comment_ID = wp_new_comment($commentdata);
5051                 do_action('pingback_post', $comment_ID);
5052
5053                 return sprintf(__('Pingback from %1$s to %2$s registered. Keep the web talking! :-)'), $pagelinkedfrom, $pagelinkedto);
5054         }
5055
5056         /**
5057          * Retrieve array of URLs that pingbacked the given URL.
5058          *
5059          * Specs on http://www.aquarionics.com/misc/archives/blogite/0198.html
5060          *
5061          * @since 1.5.0
5062          *
5063          * @param array $args Method parameters.
5064          * @return array
5065          */
5066         function pingback_extensions_getPingbacks($args) {
5067
5068                 global $wpdb;
5069
5070                 do_action('xmlrpc_call', 'pingback.extensions.getPingbacks');
5071
5072                 $this->escape($args);
5073
5074                 $url = $args;
5075
5076                 $post_ID = url_to_postid($url);
5077                 if ( !$post_ID ) {
5078                         // We aren't sure that the resource is available and/or pingback enabled
5079                         return new IXR_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.'));
5080                 }
5081
5082                 $actual_post = wp_get_single_post($post_ID, ARRAY_A);
5083
5084                 if ( !$actual_post ) {
5085                         // No such post = resource not found
5086                         return new IXR_Error(32, __('The specified target URL does not exist.'));
5087                 }
5088
5089                 $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", $post_ID) );
5090
5091                 if ( !$comments )
5092                         return array();
5093
5094                 $pingbacks = array();
5095                 foreach ( $comments as $comment ) {
5096                         if ( 'pingback' == $comment->comment_type )
5097                                 $pingbacks[] = $comment->comment_author_url;
5098                 }
5099
5100                 return $pingbacks;
5101         }
5102 }