10c593d2a49d0e0c3d057d6e7557fea10a2443fa
[autoinstalls/wordpress.git] / wp-includes / class-wp-xmlrpc-server.php
1 <?php
2 /**
3  * XML-RPC protocol support for WordPress
4  *
5  * @package WordPress
6  * @subpackage Publishing
7  */
8
9 /**
10  * WordPress XMLRPC server implementation.
11  *
12  * Implements compatibility for Blogger API, MetaWeblog API, MovableType, and
13  * pingback. Additional WordPress API for managing comments, pages, posts,
14  * options, etc.
15  *
16  * As of WordPress 3.5.0, XML-RPC is enabled by default. It can be disabled
17  * via the xmlrpc_enabled filter found in wp_xmlrpc_server::login().
18  *
19  * @package WordPress
20  * @subpackage Publishing
21  * @since 1.5.0
22  */
23 class wp_xmlrpc_server extends IXR_Server {
24         /**
25          * @var array
26          */
27         public $methods;
28         /**
29          * @var array
30          */
31         public $blog_options;
32         /**
33          * @var IXR_Error
34          */
35         public $error;
36         /**
37          * Register all of the XMLRPC methods that XMLRPC server understands.
38          *
39          * Sets up server and method property. Passes XMLRPC
40          * methods through the 'xmlrpc_methods' filter to allow plugins to extend
41          * or replace XMLRPC methods.
42          *
43          * @since 1.5.0
44          */
45         public function __construct() {
46                 $this->methods = array(
47                         // WordPress API
48                         'wp.getUsersBlogs'              => 'this:wp_getUsersBlogs',
49                         'wp.newPost'                    => 'this:wp_newPost',
50                         'wp.editPost'                   => 'this:wp_editPost',
51                         'wp.deletePost'                 => 'this:wp_deletePost',
52                         'wp.getPost'                    => 'this:wp_getPost',
53                         'wp.getPosts'                   => 'this:wp_getPosts',
54                         'wp.newTerm'                    => 'this:wp_newTerm',
55                         'wp.editTerm'                   => 'this:wp_editTerm',
56                         'wp.deleteTerm'                 => 'this:wp_deleteTerm',
57                         'wp.getTerm'                    => 'this:wp_getTerm',
58                         'wp.getTerms'                   => 'this:wp_getTerms',
59                         'wp.getTaxonomy'                => 'this:wp_getTaxonomy',
60                         'wp.getTaxonomies'              => 'this:wp_getTaxonomies',
61                         'wp.getUser'                    => 'this:wp_getUser',
62                         'wp.getUsers'                   => 'this:wp_getUsers',
63                         'wp.getProfile'                 => 'this:wp_getProfile',
64                         'wp.editProfile'                => 'this:wp_editProfile',
65                         'wp.getPage'                    => 'this:wp_getPage',
66                         'wp.getPages'                   => 'this:wp_getPages',
67                         'wp.newPage'                    => 'this:wp_newPage',
68                         'wp.deletePage'                 => 'this:wp_deletePage',
69                         'wp.editPage'                   => 'this:wp_editPage',
70                         'wp.getPageList'                => 'this:wp_getPageList',
71                         'wp.getAuthors'                 => 'this:wp_getAuthors',
72                         'wp.getCategories'              => 'this:mw_getCategories',             // Alias
73                         'wp.getTags'                    => 'this:wp_getTags',
74                         'wp.newCategory'                => 'this:wp_newCategory',
75                         'wp.deleteCategory'             => 'this:wp_deleteCategory',
76                         'wp.suggestCategories'  => 'this:wp_suggestCategories',
77                         'wp.uploadFile'                 => 'this:mw_newMediaObject',    // Alias
78                         'wp.deleteFile'                 => 'this:wp_deletePost',                // Alias
79                         'wp.getCommentCount'    => 'this:wp_getCommentCount',
80                         'wp.getPostStatusList'  => 'this:wp_getPostStatusList',
81                         'wp.getPageStatusList'  => 'this:wp_getPageStatusList',
82                         'wp.getPageTemplates'   => 'this:wp_getPageTemplates',
83                         'wp.getOptions'                 => 'this:wp_getOptions',
84                         'wp.setOptions'                 => 'this:wp_setOptions',
85                         'wp.getComment'                 => 'this:wp_getComment',
86                         'wp.getComments'                => 'this:wp_getComments',
87                         'wp.deleteComment'              => 'this:wp_deleteComment',
88                         'wp.editComment'                => 'this:wp_editComment',
89                         'wp.newComment'                 => 'this:wp_newComment',
90                         'wp.getCommentStatusList' => 'this:wp_getCommentStatusList',
91                         'wp.getMediaItem'               => 'this:wp_getMediaItem',
92                         'wp.getMediaLibrary'    => 'this:wp_getMediaLibrary',
93                         'wp.getPostFormats'     => 'this:wp_getPostFormats',
94                         'wp.getPostType'                => 'this:wp_getPostType',
95                         'wp.getPostTypes'               => 'this:wp_getPostTypes',
96                         'wp.getRevisions'               => 'this:wp_getRevisions',
97                         'wp.restoreRevision'    => 'this:wp_restoreRevision',
98
99                         // Blogger API
100                         'blogger.getUsersBlogs' => 'this:blogger_getUsersBlogs',
101                         'blogger.getUserInfo' => 'this:blogger_getUserInfo',
102                         'blogger.getPost' => 'this:blogger_getPost',
103                         'blogger.getRecentPosts' => 'this:blogger_getRecentPosts',
104                         'blogger.newPost' => 'this:blogger_newPost',
105                         'blogger.editPost' => 'this:blogger_editPost',
106                         'blogger.deletePost' => 'this:blogger_deletePost',
107
108                         // MetaWeblog API (with MT extensions to structs)
109                         'metaWeblog.newPost' => 'this:mw_newPost',
110                         'metaWeblog.editPost' => 'this:mw_editPost',
111                         'metaWeblog.getPost' => 'this:mw_getPost',
112                         'metaWeblog.getRecentPosts' => 'this:mw_getRecentPosts',
113                         'metaWeblog.getCategories' => 'this:mw_getCategories',
114                         'metaWeblog.newMediaObject' => 'this:mw_newMediaObject',
115
116                         // MetaWeblog API aliases for Blogger API
117                         // see http://www.xmlrpc.com/stories/storyReader$2460
118                         'metaWeblog.deletePost' => 'this:blogger_deletePost',
119                         'metaWeblog.getUsersBlogs' => 'this:blogger_getUsersBlogs',
120
121                         // MovableType API
122                         'mt.getCategoryList' => 'this:mt_getCategoryList',
123                         'mt.getRecentPostTitles' => 'this:mt_getRecentPostTitles',
124                         'mt.getPostCategories' => 'this:mt_getPostCategories',
125                         'mt.setPostCategories' => 'this:mt_setPostCategories',
126                         'mt.supportedMethods' => 'this:mt_supportedMethods',
127                         'mt.supportedTextFilters' => 'this:mt_supportedTextFilters',
128                         'mt.getTrackbackPings' => 'this:mt_getTrackbackPings',
129                         'mt.publishPost' => 'this:mt_publishPost',
130
131                         // PingBack
132                         'pingback.ping' => 'this:pingback_ping',
133                         'pingback.extensions.getPingbacks' => 'this:pingback_extensions_getPingbacks',
134
135                         'demo.sayHello' => 'this:sayHello',
136                         'demo.addTwoNumbers' => 'this:addTwoNumbers'
137                 );
138
139                 $this->initialise_blog_option_info();
140
141                 /**
142                  * Filter the methods exposed by the XML-RPC server.
143                  *
144                  * This filter can be used to add new methods, and remove built-in methods.
145                  *
146                  * @since 1.5.0
147                  *
148                  * @param array $methods An array of XML-RPC methods.
149                  */
150                 $this->methods = apply_filters( 'xmlrpc_methods', $this->methods );
151         }
152
153         /**
154          * Make private/protected methods readable for backwards compatibility.
155          *
156          * @since 4.0.0
157          * @access public
158          *
159          * @param callable $name      Method to call.
160          * @param array    $arguments Arguments to pass when calling.
161          * @return mixed|bool Return value of the callback, false otherwise.
162          */
163         public function __call( $name, $arguments ) {
164                 if ( '_multisite_getUsersBlogs' === $name ) {
165                         return call_user_func_array( array( $this, $name ), $arguments );
166                 }
167                 return false;
168         }
169
170         public function serve_request() {
171                 $this->IXR_Server($this->methods);
172         }
173
174         /**
175          * Test XMLRPC API by saying, "Hello!" to client.
176          *
177          * @since 1.5.0
178          *
179          * @param array $args Method Parameters.
180          * @return string
181          */
182         public function sayHello($args) {
183                 return 'Hello!';
184         }
185
186         /**
187          * Test XMLRPC API by adding two numbers for client.
188          *
189          * @since 1.5.0
190          *
191          * @param array $args Method Parameters.
192          * @return int
193          */
194         public function addTwoNumbers($args) {
195                 $number1 = $args[0];
196                 $number2 = $args[1];
197                 return $number1 + $number2;
198         }
199
200         /**
201          * Log user in.
202          *
203          * @since 2.8.0
204          *
205          * @param string $username User's username.
206          * @param string $password User's password.
207          * @return WP_User|bool WP_User object if authentication passed, false otherwise
208          */
209         public function login( $username, $password ) {
210                 /*
211                  * Respect old get_option() filters left for back-compat when the 'enable_xmlrpc'
212                  * option was deprecated in 3.5.0. Use the 'xmlrpc_enabled' hook instead.
213                  */
214                 $enabled = apply_filters( 'pre_option_enable_xmlrpc', false );
215                 if ( false === $enabled ) {
216                         $enabled = apply_filters( 'option_enable_xmlrpc', true );
217                 }
218
219                 /**
220                  * Filter whether XML-RPC is enabled.
221                  *
222                  * This is the proper filter for turning off XML-RPC.
223                  *
224                  * @since 3.5.0
225                  *
226                  * @param bool $enabled Whether XML-RPC is enabled. Default true.
227                  */
228                 $enabled = apply_filters( 'xmlrpc_enabled', $enabled );
229
230                 if ( ! $enabled ) {
231                         $this->error = new IXR_Error( 405, sprintf( __( 'XML-RPC services are disabled on this site.' ) ) );
232                         return false;
233                 }
234
235                 $user = wp_authenticate($username, $password);
236
237                 if (is_wp_error($user)) {
238                         $this->error = new IXR_Error( 403, __( 'Incorrect username or password.' ) );
239
240                         /**
241                          * Filter the XML-RPC user login error message.
242                          *
243                          * @since 3.5.0
244                          *
245                          * @param string  $error The XML-RPC error message.
246                          * @param WP_User $user  WP_User object.
247                          */
248                         $this->error = apply_filters( 'xmlrpc_login_error', $this->error, $user );
249                         return false;
250                 }
251
252                 wp_set_current_user( $user->ID );
253                 return $user;
254         }
255
256         /**
257          * Check user's credentials. Deprecated.
258          *
259          * @since 1.5.0
260          * @deprecated 2.8.0
261          * @deprecated use wp_xmlrpc_server::login
262          * @see wp_xmlrpc_server::login
263          *
264          * @param string $username User's username.
265          * @param string $password User's password.
266          * @return bool Whether authentication passed.
267          */
268         public function login_pass_ok( $username, $password ) {
269                 return (bool) $this->login( $username, $password );
270         }
271
272         /**
273          * Escape string or array of strings for database.
274          *
275          * @since 1.5.2
276          *
277          * @param string|array $data Escape single string or array of strings.
278          * @return string|array Type matches $data and sanitized for the database.
279          */
280         public function escape( &$data ) {
281                 if ( ! is_array( $data ) )
282                         return wp_slash( $data );
283
284                 foreach ( $data as &$v ) {
285                         if ( is_array( $v ) )
286                                 $this->escape( $v );
287                         elseif ( ! is_object( $v ) )
288                                 $v = wp_slash( $v );
289                 }
290         }
291
292         /**
293          * Retrieve custom fields for post.
294          *
295          * @since 2.5.0
296          *
297          * @param int $post_id Post ID.
298          * @return array Custom fields, if exist.
299          */
300         public function get_custom_fields($post_id) {
301                 $post_id = (int) $post_id;
302
303                 $custom_fields = array();
304
305                 foreach ( (array) has_meta($post_id) as $meta ) {
306                         // Don't expose protected fields.
307                         if ( ! current_user_can( 'edit_post_meta', $post_id , $meta['meta_key'] ) )
308                                 continue;
309
310                         $custom_fields[] = array(
311                                 "id"    => $meta['meta_id'],
312                                 "key"   => $meta['meta_key'],
313                                 "value" => $meta['meta_value']
314                         );
315                 }
316
317                 return $custom_fields;
318         }
319
320         /**
321          * Set custom fields for post.
322          *
323          * @since 2.5.0
324          *
325          * @param int $post_id Post ID.
326          * @param array $fields Custom fields.
327          */
328         public function set_custom_fields($post_id, $fields) {
329                 $post_id = (int) $post_id;
330
331                 foreach ( (array) $fields as $meta ) {
332                         if ( isset($meta['id']) ) {
333                                 $meta['id'] = (int) $meta['id'];
334                                 $pmeta = get_metadata_by_mid( 'post', $meta['id'] );
335                                 if ( isset($meta['key']) ) {
336                                         $meta['key'] = wp_unslash( $meta['key'] );
337                                         if ( $meta['key'] !== $pmeta->meta_key )
338                                                 continue;
339                                         $meta['value'] = wp_unslash( $meta['value'] );
340                                         if ( current_user_can( 'edit_post_meta', $post_id, $meta['key'] ) )
341                                                 update_metadata_by_mid( 'post', $meta['id'], $meta['value'] );
342                                 } elseif ( current_user_can( 'delete_post_meta', $post_id, $pmeta->meta_key ) ) {
343                                         delete_metadata_by_mid( 'post', $meta['id'] );
344                                 }
345                         } elseif ( current_user_can( 'add_post_meta', $post_id, wp_unslash( $meta['key'] ) ) ) {
346                                 add_post_meta( $post_id, $meta['key'], $meta['value'] );
347                         }
348                 }
349         }
350
351         /**
352          * Set up blog options property.
353          *
354          * Passes property through 'xmlrpc_blog_options' filter.
355          *
356          * @since 2.6.0
357          */
358         public function initialise_blog_option_info() {
359                 global $wp_version;
360
361                 $this->blog_options = array(
362                         // Read only options
363                         'software_name'     => array(
364                                 'desc'          => __( 'Software Name' ),
365                                 'readonly'      => true,
366                                 'value'         => 'WordPress'
367                         ),
368                         'software_version'  => array(
369                                 'desc'          => __( 'Software Version' ),
370                                 'readonly'      => true,
371                                 'value'         => $wp_version
372                         ),
373                         'blog_url'          => array(
374                                 'desc'          => __( 'WordPress Address (URL)' ),
375                                 'readonly'      => true,
376                                 'option'        => 'siteurl'
377                         ),
378                         'home_url'          => array(
379                                 'desc'          => __( 'Site Address (URL)' ),
380                                 'readonly'      => true,
381                                 'option'        => 'home'
382                         ),
383                         'login_url'          => array(
384                                 'desc'          => __( 'Login Address (URL)' ),
385                                 'readonly'      => true,
386                                 'value'         => wp_login_url( )
387                         ),
388                         'admin_url'          => array(
389                                 'desc'          => __( 'The URL to the admin area' ),
390                                 'readonly'      => true,
391                                 'value'         => get_admin_url( )
392                         ),
393                         'image_default_link_type' => array(
394                                 'desc'          => __( 'Image default link type' ),
395                                 'readonly'      => true,
396                                 'option'        => 'image_default_link_type'
397                         ),
398                         'image_default_size' => array(
399                                 'desc'          => __( 'Image default size' ),
400                                 'readonly'      => true,
401                                 'option'        => 'image_default_size'
402                         ),
403                         'image_default_align' => array(
404                                 'desc'          => __( 'Image default align' ),
405                                 'readonly'      => true,
406                                 'option'        => 'image_default_align'
407                         ),
408                         'template'          => array(
409                                 'desc'          => __( 'Template' ),
410                                 'readonly'      => true,
411                                 'option'        => 'template'
412                         ),
413                         'stylesheet'        => array(
414                                 'desc'          => __( 'Stylesheet' ),
415                                 'readonly'      => true,
416                                 'option'        => 'stylesheet'
417                         ),
418                         'post_thumbnail'    => array(
419                                 'desc'          => __('Post Thumbnail'),
420                                 'readonly'      => true,
421                                 'value'         => current_theme_supports( 'post-thumbnails' )
422                         ),
423
424                         // Updatable options
425                         'time_zone'         => array(
426                                 'desc'          => __( 'Time Zone' ),
427                                 'readonly'      => false,
428                                 'option'        => 'gmt_offset'
429                         ),
430                         'blog_title'        => array(
431                                 'desc'          => __( 'Site Title' ),
432                                 'readonly'      => false,
433                                 'option'        => 'blogname'
434                         ),
435                         'blog_tagline'      => array(
436                                 'desc'          => __( 'Site Tagline' ),
437                                 'readonly'      => false,
438                                 'option'        => 'blogdescription'
439                         ),
440                         'date_format'       => array(
441                                 'desc'          => __( 'Date Format' ),
442                                 'readonly'      => false,
443                                 'option'        => 'date_format'
444                         ),
445                         'time_format'       => array(
446                                 'desc'          => __( 'Time Format' ),
447                                 'readonly'      => false,
448                                 'option'        => 'time_format'
449                         ),
450                         'users_can_register' => array(
451                                 'desc'          => __( 'Allow new users to sign up' ),
452                                 'readonly'      => false,
453                                 'option'        => 'users_can_register'
454                         ),
455                         'thumbnail_size_w'  => array(
456                                 'desc'          => __( 'Thumbnail Width' ),
457                                 'readonly'      => false,
458                                 'option'        => 'thumbnail_size_w'
459                         ),
460                         'thumbnail_size_h'  => array(
461                                 'desc'          => __( 'Thumbnail Height' ),
462                                 'readonly'      => false,
463                                 'option'        => 'thumbnail_size_h'
464                         ),
465                         'thumbnail_crop'    => array(
466                                 'desc'          => __( 'Crop thumbnail to exact dimensions' ),
467                                 'readonly'      => false,
468                                 'option'        => 'thumbnail_crop'
469                         ),
470                         'medium_size_w'     => array(
471                                 'desc'          => __( 'Medium size image width' ),
472                                 'readonly'      => false,
473                                 'option'        => 'medium_size_w'
474                         ),
475                         'medium_size_h'     => array(
476                                 'desc'          => __( 'Medium size image height' ),
477                                 'readonly'      => false,
478                                 'option'        => 'medium_size_h'
479                         ),
480                         'large_size_w'      => array(
481                                 'desc'          => __( 'Large size image width' ),
482                                 'readonly'      => false,
483                                 'option'        => 'large_size_w'
484                         ),
485                         'large_size_h'      => array(
486                                 'desc'          => __( 'Large size image height' ),
487                                 'readonly'      => false,
488                                 'option'        => 'large_size_h'
489                         ),
490                         'default_comment_status' => array(
491                                 'desc'          => __( 'Allow people to post comments on new articles' ),
492                                 'readonly'      => false,
493                                 'option'        => 'default_comment_status'
494                         ),
495                         'default_ping_status' => array(
496                                 'desc'          => __( 'Allow link notifications from other blogs (pingbacks and trackbacks)' ),
497                                 'readonly'      => false,
498                                 'option'        => 'default_ping_status'
499                         )
500                 );
501
502                 /**
503                  * Filter the XML-RPC blog options property.
504                  *
505                  * @since 2.6.0
506                  *
507                  * @param array $blog_options An array of XML-RPC blog options.
508                  */
509                 $this->blog_options = apply_filters( 'xmlrpc_blog_options', $this->blog_options );
510         }
511
512         /**
513          * Retrieve the blogs of the user.
514          *
515          * @since 2.6.0
516          *
517          * @param array $args Method parameters. Contains:
518          *  - username
519          *  - password
520          * @return array|IXR_Error Array contains:
521          *  - 'isAdmin'
522          *  - 'url'
523          *  - 'blogid'
524          *  - 'blogName'
525          *  - 'xmlrpc' - url of xmlrpc endpoint
526          */
527         public function wp_getUsersBlogs( $args ) {
528                 // If this isn't on WPMU then just use blogger_getUsersBlogs
529                 if ( !is_multisite() ) {
530                         array_unshift( $args, 1 );
531                         return $this->blogger_getUsersBlogs( $args );
532                 }
533
534                 $this->escape( $args );
535
536                 $username = $args[0];
537                 $password = $args[1];
538
539                 if ( !$user = $this->login($username, $password) )
540                         return $this->error;
541
542                 /**
543                  * Fires after the XML-RPC user has been authenticated but before the rest of
544                  * the method logic begins.
545                  *
546                  * All built-in XML-RPC methods use the action xmlrpc_call, with a parameter
547                  * equal to the method's name, e.g., wp.getUsersBlogs, wp.newPost, etc.
548                  *
549                  * @since 2.5.0
550                  *
551                  * @param method $name The method name.
552                  */
553                 do_action( 'xmlrpc_call', 'wp.getUsersBlogs' );
554
555                 $blogs = (array) get_blogs_of_user( $user->ID );
556                 $struct = array();
557
558                 foreach ( $blogs as $blog ) {
559                         // Don't include blogs that aren't hosted at this site
560                         if ( $blog->site_id != get_current_site()->id )
561                                 continue;
562
563                         $blog_id = $blog->userblog_id;
564
565                         switch_to_blog( $blog_id );
566
567                         $is_admin = current_user_can( 'manage_options' );
568
569                         $struct[] = array(
570                                 'isAdmin'               => $is_admin,
571                                 'url'                   => home_url( '/' ),
572                                 'blogid'                => (string) $blog_id,
573                                 'blogName'              => get_option( 'blogname' ),
574                                 'xmlrpc'                => site_url( 'xmlrpc.php', 'rpc' ),
575                         );
576
577                         restore_current_blog();
578                 }
579
580                 return $struct;
581         }
582
583         /**
584          * Checks if the method received at least the minimum number of arguments.
585          *
586          * @since 3.4.0
587          *
588          * @param string|array $args Sanitize single string or array of strings.
589          * @param int $count Minimum number of arguments.
590          * @return boolean if $args contains at least $count arguments.
591          */
592         protected function minimum_args( $args, $count ) {
593                 if ( count( $args ) < $count ) {
594                         $this->error = new IXR_Error( 400, __( 'Insufficient arguments passed to this XML-RPC method.' ) );
595                         return false;
596                 }
597
598                 return true;
599         }
600
601         /**
602          * Prepares taxonomy data for return in an XML-RPC object.
603          *
604          * @access protected
605          *
606          * @param object $taxonomy The unprepared taxonomy data
607          * @param array $fields The subset of taxonomy fields to return
608          * @return array The prepared taxonomy data
609          */
610         protected function _prepare_taxonomy( $taxonomy, $fields ) {
611                 $_taxonomy = array(
612                         'name' => $taxonomy->name,
613                         'label' => $taxonomy->label,
614                         'hierarchical' => (bool) $taxonomy->hierarchical,
615                         'public' => (bool) $taxonomy->public,
616                         'show_ui' => (bool) $taxonomy->show_ui,
617                         '_builtin' => (bool) $taxonomy->_builtin,
618                 );
619
620                 if ( in_array( 'labels', $fields ) )
621                         $_taxonomy['labels'] = (array) $taxonomy->labels;
622
623                 if ( in_array( 'cap', $fields ) )
624                         $_taxonomy['cap'] = (array) $taxonomy->cap;
625
626                 if ( in_array( 'menu', $fields ) )
627                         $_taxonomy['show_in_menu'] = (bool) $_taxonomy->show_in_menu;
628
629                 if ( in_array( 'object_type', $fields ) )
630                         $_taxonomy['object_type'] = array_unique( (array) $taxonomy->object_type );
631
632                 /**
633                  * Filter XML-RPC-prepared data for the given taxonomy.
634                  *
635                  * @since 3.4.0
636                  *
637                  * @param array  $_taxonomy An array of taxonomy data.
638                  * @param object $taxonomy  Taxonomy object.
639                  * @param array  $fields    The subset of taxonomy fields to return.
640                  */
641                 return apply_filters( 'xmlrpc_prepare_taxonomy', $_taxonomy, $taxonomy, $fields );
642         }
643
644         /**
645          * Prepares term data for return in an XML-RPC object.
646          *
647          * @access protected
648          *
649          * @param array|object $term The unprepared term data
650          * @return array The prepared term data
651          */
652         protected function _prepare_term( $term ) {
653                 $_term = $term;
654                 if ( ! is_array( $_term) )
655                         $_term = get_object_vars( $_term );
656
657                 // For integers which may be larger than XML-RPC supports ensure we return strings.
658                 $_term['term_id'] = strval( $_term['term_id'] );
659                 $_term['term_group'] = strval( $_term['term_group'] );
660                 $_term['term_taxonomy_id'] = strval( $_term['term_taxonomy_id'] );
661                 $_term['parent'] = strval( $_term['parent'] );
662
663                 // Count we are happy to return as an integer because people really shouldn't use terms that much.
664                 $_term['count'] = intval( $_term['count'] );
665
666                 /**
667                  * Filter XML-RPC-prepared data for the given term.
668                  *
669                  * @since 3.4.0
670                  *
671                  * @param array        $_term An array of term data.
672                  * @param array|object $term  Term object or array.
673                  */
674                 return apply_filters( 'xmlrpc_prepare_term', $_term, $term );
675         }
676
677         /**
678          * Convert a WordPress date string to an IXR_Date object.
679          *
680          * @access protected
681          *
682          * @param string $date
683          * @return IXR_Date
684          */
685         protected function _convert_date( $date ) {
686                 if ( $date === '0000-00-00 00:00:00' ) {
687                         return new IXR_Date( '00000000T00:00:00Z' );
688                 }
689                 return new IXR_Date( mysql2date( 'Ymd\TH:i:s', $date, false ) );
690         }
691
692         /**
693          * Convert a WordPress GMT date string to an IXR_Date object.
694          *
695          * @access protected
696          *
697          * @param string $date_gmt
698          * @param string $date
699          * @return IXR_Date
700          */
701         protected function _convert_date_gmt( $date_gmt, $date ) {
702                 if ( $date !== '0000-00-00 00:00:00' && $date_gmt === '0000-00-00 00:00:00' ) {
703                         return new IXR_Date( get_gmt_from_date( mysql2date( 'Y-m-d H:i:s', $date, false ), 'Ymd\TH:i:s' ) );
704                 }
705                 return $this->_convert_date( $date_gmt );
706         }
707
708         /**
709          * Prepares post data for return in an XML-RPC object.
710          *
711          * @access protected
712          *
713          * @param array $post The unprepared post data
714          * @param array $fields The subset of post type fields to return
715          * @return array The prepared post data
716          */
717         protected function _prepare_post( $post, $fields ) {
718                 // holds the data for this post. built up based on $fields
719                 $_post = array( 'post_id' => strval( $post['ID'] ) );
720
721                 // prepare common post fields
722                 $post_fields = array(
723                         'post_title'        => $post['post_title'],
724                         'post_date'         => $this->_convert_date( $post['post_date'] ),
725                         'post_date_gmt'     => $this->_convert_date_gmt( $post['post_date_gmt'], $post['post_date'] ),
726                         'post_modified'     => $this->_convert_date( $post['post_modified'] ),
727                         'post_modified_gmt' => $this->_convert_date_gmt( $post['post_modified_gmt'], $post['post_modified'] ),
728                         'post_status'       => $post['post_status'],
729                         'post_type'         => $post['post_type'],
730                         'post_name'         => $post['post_name'],
731                         'post_author'       => $post['post_author'],
732                         'post_password'     => $post['post_password'],
733                         'post_excerpt'      => $post['post_excerpt'],
734                         'post_content'      => $post['post_content'],
735                         'post_parent'       => strval( $post['post_parent'] ),
736                         'post_mime_type'    => $post['post_mime_type'],
737                         'link'              => post_permalink( $post['ID'] ),
738                         'guid'              => $post['guid'],
739                         'menu_order'        => intval( $post['menu_order'] ),
740                         'comment_status'    => $post['comment_status'],
741                         'ping_status'       => $post['ping_status'],
742                         'sticky'            => ( $post['post_type'] === 'post' && is_sticky( $post['ID'] ) ),
743                 );
744
745                 // Thumbnail
746                 $post_fields['post_thumbnail'] = array();
747                 $thumbnail_id = get_post_thumbnail_id( $post['ID'] );
748                 if ( $thumbnail_id ) {
749                         $thumbnail_size = current_theme_supports('post-thumbnail') ? 'post-thumbnail' : 'thumbnail';
750                         $post_fields['post_thumbnail'] = $this->_prepare_media_item( get_post( $thumbnail_id ), $thumbnail_size );
751                 }
752
753                 // Consider future posts as published
754                 if ( $post_fields['post_status'] === 'future' )
755                         $post_fields['post_status'] = 'publish';
756
757                 // Fill in blank post format
758                 $post_fields['post_format'] = get_post_format( $post['ID'] );
759                 if ( empty( $post_fields['post_format'] ) )
760                         $post_fields['post_format'] = 'standard';
761
762                 // Merge requested $post_fields fields into $_post
763                 if ( in_array( 'post', $fields ) ) {
764                         $_post = array_merge( $_post, $post_fields );
765                 } else {
766                         $requested_fields = array_intersect_key( $post_fields, array_flip( $fields ) );
767                         $_post = array_merge( $_post, $requested_fields );
768                 }
769
770                 $all_taxonomy_fields = in_array( 'taxonomies', $fields );
771
772                 if ( $all_taxonomy_fields || in_array( 'terms', $fields ) ) {
773                         $post_type_taxonomies = get_object_taxonomies( $post['post_type'], 'names' );
774                         $terms = wp_get_object_terms( $post['ID'], $post_type_taxonomies );
775                         $_post['terms'] = array();
776                         foreach ( $terms as $term ) {
777                                 $_post['terms'][] = $this->_prepare_term( $term );
778                         }
779                 }
780
781                 if ( in_array( 'custom_fields', $fields ) )
782                         $_post['custom_fields'] = $this->get_custom_fields( $post['ID'] );
783
784                 if ( in_array( 'enclosure', $fields ) ) {
785                         $_post['enclosure'] = array();
786                         $enclosures = (array) get_post_meta( $post['ID'], 'enclosure' );
787                         if ( ! empty( $enclosures ) ) {
788                                 $encdata = explode( "\n", $enclosures[0] );
789                                 $_post['enclosure']['url'] = trim( htmlspecialchars( $encdata[0] ) );
790                                 $_post['enclosure']['length'] = (int) trim( $encdata[1] );
791                                 $_post['enclosure']['type'] = trim( $encdata[2] );
792                         }
793                 }
794
795                 /**
796                  * Filter XML-RPC-prepared date for the given post.
797                  *
798                  * @since 3.4.0
799                  *
800                  * @param array $_post  An array of modified post data.
801                  * @param array $post   An array of post data.
802                  * @param array $fields An array of post fields.
803                  */
804                 return apply_filters( 'xmlrpc_prepare_post', $_post, $post, $fields );
805         }
806
807         /**
808          * Prepares post data for return in an XML-RPC object.
809          *
810          * @access protected
811          *
812          * @param object $post_type Post type object
813          * @param array $fields The subset of post fields to return
814          * @return array The prepared post type data
815          */
816         protected function _prepare_post_type( $post_type, $fields ) {
817                 $_post_type = array(
818                         'name' => $post_type->name,
819                         'label' => $post_type->label,
820                         'hierarchical' => (bool) $post_type->hierarchical,
821                         'public' => (bool) $post_type->public,
822                         'show_ui' => (bool) $post_type->show_ui,
823                         '_builtin' => (bool) $post_type->_builtin,
824                         'has_archive' => (bool) $post_type->has_archive,
825                         'supports' => get_all_post_type_supports( $post_type->name ),
826                 );
827
828                 if ( in_array( 'labels', $fields ) ) {
829                         $_post_type['labels'] = (array) $post_type->labels;
830                 }
831
832                 if ( in_array( 'cap', $fields ) ) {
833                         $_post_type['cap'] = (array) $post_type->cap;
834                         $_post_type['map_meta_cap'] = (bool) $post_type->map_meta_cap;
835                 }
836
837                 if ( in_array( 'menu', $fields ) ) {
838                         $_post_type['menu_position'] = (int) $post_type->menu_position;
839                         $_post_type['menu_icon'] = $post_type->menu_icon;
840                         $_post_type['show_in_menu'] = (bool) $post_type->show_in_menu;
841                 }
842
843                 if ( in_array( 'taxonomies', $fields ) )
844                         $_post_type['taxonomies'] = get_object_taxonomies( $post_type->name, 'names' );
845
846                 /**
847                  * Filter XML-RPC-prepared date for the given post type.
848                  *
849                  * @since 3.4.0
850                  *
851                  * @param array  $_post_type An array of post type data.
852                  * @param object $post_type  Post type object.
853                  */
854                 return apply_filters( 'xmlrpc_prepare_post_type', $_post_type, $post_type );
855         }
856
857         /**
858          * Prepares media item data for return in an XML-RPC object.
859          *
860          * @access protected
861          *
862          * @param object $media_item The unprepared media item data
863          * @param string $thumbnail_size The image size to use for the thumbnail URL
864          * @return array The prepared media item data
865          */
866         protected function _prepare_media_item( $media_item, $thumbnail_size = 'thumbnail' ) {
867                 $_media_item = array(
868                         'attachment_id'    => strval( $media_item->ID ),
869                         'date_created_gmt' => $this->_convert_date_gmt( $media_item->post_date_gmt, $media_item->post_date ),
870                         'parent'           => $media_item->post_parent,
871                         'link'             => wp_get_attachment_url( $media_item->ID ),
872                         'title'            => $media_item->post_title,
873                         'caption'          => $media_item->post_excerpt,
874                         'description'      => $media_item->post_content,
875                         'metadata'         => wp_get_attachment_metadata( $media_item->ID ),
876                 );
877
878                 $thumbnail_src = image_downsize( $media_item->ID, $thumbnail_size );
879                 if ( $thumbnail_src )
880                         $_media_item['thumbnail'] = $thumbnail_src[0];
881                 else
882                         $_media_item['thumbnail'] = $_media_item['link'];
883
884                 /**
885                  * Filter XML-RPC-prepared data for the given media item.
886                  *
887                  * @since 3.4.0
888                  *
889                  * @param array  $_media_item    An array of media item data.
890                  * @param object $media_item     Media item object.
891                  * @param string $thumbnail_size Image size.
892                  */
893                 return apply_filters( 'xmlrpc_prepare_media_item', $_media_item, $media_item, $thumbnail_size );
894         }
895
896         /**
897          * Prepares page data for return in an XML-RPC object.
898          *
899          * @access protected
900          *
901          * @param object $page The unprepared page data
902          * @return array The prepared page data
903          */
904         protected function _prepare_page( $page ) {
905                 // Get all of the page content and link.
906                 $full_page = get_extended( $page->post_content );
907                 $link = post_permalink( $page->ID );
908
909                 // Get info the page parent if there is one.
910                 $parent_title = "";
911                 if ( ! empty( $page->post_parent ) ) {
912                         $parent = get_post( $page->post_parent );
913                         $parent_title = $parent->post_title;
914                 }
915
916                 // Determine comment and ping settings.
917                 $allow_comments = comments_open( $page->ID ) ? 1 : 0;
918                 $allow_pings = pings_open( $page->ID ) ? 1 : 0;
919
920                 // Format page date.
921                 $page_date = $this->_convert_date( $page->post_date );
922                 $page_date_gmt = $this->_convert_date_gmt( $page->post_date_gmt, $page->post_date );
923
924                 // Pull the categories info together.
925                 $categories = array();
926                 if ( is_object_in_taxonomy( 'page', 'category' ) ) {
927                         foreach ( wp_get_post_categories( $page->ID ) as $cat_id ) {
928                                 $categories[] = get_cat_name( $cat_id );
929                         }
930                 }
931
932                 // Get the author info.
933                 $author = get_userdata( $page->post_author );
934
935                 $page_template = get_page_template_slug( $page->ID );
936                 if ( empty( $page_template ) )
937                         $page_template = 'default';
938
939                 $_page = array(
940                         'dateCreated'            => $page_date,
941                         'userid'                 => $page->post_author,
942                         'page_id'                => $page->ID,
943                         'page_status'            => $page->post_status,
944                         'description'            => $full_page['main'],
945                         'title'                  => $page->post_title,
946                         'link'                   => $link,
947                         'permaLink'              => $link,
948                         'categories'             => $categories,
949                         'excerpt'                => $page->post_excerpt,
950                         'text_more'              => $full_page['extended'],
951                         'mt_allow_comments'      => $allow_comments,
952                         'mt_allow_pings'         => $allow_pings,
953                         'wp_slug'                => $page->post_name,
954                         'wp_password'            => $page->post_password,
955                         'wp_author'              => $author->display_name,
956                         'wp_page_parent_id'      => $page->post_parent,
957                         'wp_page_parent_title'   => $parent_title,
958                         'wp_page_order'          => $page->menu_order,
959                         'wp_author_id'           => (string) $author->ID,
960                         'wp_author_display_name' => $author->display_name,
961                         'date_created_gmt'       => $page_date_gmt,
962                         'custom_fields'          => $this->get_custom_fields( $page->ID ),
963                         'wp_page_template'       => $page_template
964                 );
965
966                 /**
967                  * Filter XML-RPC-prepared data for the given page.
968                  *
969                  * @since 3.4.0
970                  *
971                  * @param array   $_page An array of page data.
972                  * @param WP_Post $page  Page object.
973                  */
974                 return apply_filters( 'xmlrpc_prepare_page', $_page, $page );
975         }
976
977         /**
978          * Prepares comment data for return in an XML-RPC object.
979          *
980          * @access protected
981          *
982          * @param object $comment The unprepared comment data
983          * @return array The prepared comment data
984          */
985         protected function _prepare_comment( $comment ) {
986                 // Format page date.
987                 $comment_date_gmt = $this->_convert_date_gmt( $comment->comment_date_gmt, $comment->comment_date );
988
989                 if ( '0' == $comment->comment_approved ) {
990                         $comment_status = 'hold';
991                 } elseif ( 'spam' == $comment->comment_approved ) {
992                         $comment_status = 'spam';
993                 } elseif ( '1' == $comment->comment_approved ) {
994                         $comment_status = 'approve';
995                 } else {
996                         $comment_status = $comment->comment_approved;
997                 }
998                 $_comment = array(
999                         'date_created_gmt' => $comment_date_gmt,
1000                         'user_id'          => $comment->user_id,
1001                         'comment_id'       => $comment->comment_ID,
1002                         'parent'           => $comment->comment_parent,
1003                         'status'           => $comment_status,
1004                         'content'          => $comment->comment_content,
1005                         'link'             => get_comment_link($comment),
1006                         'post_id'          => $comment->comment_post_ID,
1007                         'post_title'       => get_the_title($comment->comment_post_ID),
1008                         'author'           => $comment->comment_author,
1009                         'author_url'       => $comment->comment_author_url,
1010                         'author_email'     => $comment->comment_author_email,
1011                         'author_ip'        => $comment->comment_author_IP,
1012                         'type'             => $comment->comment_type,
1013                 );
1014
1015                 /**
1016                  * Filter XML-RPC-prepared data for the given comment.
1017                  *
1018                  * @since 3.4.0
1019                  *
1020                  * @param array  $_comment An array of prepared comment data.
1021                  * @param object $comment  Comment object.
1022                  */
1023                 return apply_filters( 'xmlrpc_prepare_comment', $_comment, $comment );
1024         }
1025
1026         /**
1027          * Prepares user data for return in an XML-RPC object.
1028          *
1029          * @access protected
1030          *
1031          * @param WP_User $user The unprepared user object
1032          * @param array $fields The subset of user fields to return
1033          * @return array The prepared user data
1034          */
1035         protected function _prepare_user( $user, $fields ) {
1036                 $_user = array( 'user_id' => strval( $user->ID ) );
1037
1038                 $user_fields = array(
1039                         'username'          => $user->user_login,
1040                         'first_name'        => $user->user_firstname,
1041                         'last_name'         => $user->user_lastname,
1042                         'registered'        => $this->_convert_date( $user->user_registered ),
1043                         'bio'               => $user->user_description,
1044                         'email'             => $user->user_email,
1045                         'nickname'          => $user->nickname,
1046                         'nicename'          => $user->user_nicename,
1047                         'url'               => $user->user_url,
1048                         'display_name'      => $user->display_name,
1049                         'roles'             => $user->roles,
1050                 );
1051
1052                 if ( in_array( 'all', $fields ) ) {
1053                         $_user = array_merge( $_user, $user_fields );
1054                 } else {
1055                         if ( in_array( 'basic', $fields ) ) {
1056                                 $basic_fields = array( 'username', 'email', 'registered', 'display_name', 'nicename' );
1057                                 $fields = array_merge( $fields, $basic_fields );
1058                         }
1059                         $requested_fields = array_intersect_key( $user_fields, array_flip( $fields ) );
1060                         $_user = array_merge( $_user, $requested_fields );
1061                 }
1062
1063                 /**
1064                  * Filter XML-RPC-prepared data for the given user.
1065                  *
1066                  * @since 3.5.0
1067                  *
1068                  * @param array   $_user  An array of user data.
1069                  * @param WP_User $user   User object.
1070                  * @param array   $fields An array of user fields.
1071                  */
1072                 return apply_filters( 'xmlrpc_prepare_user', $_user, $user, $fields );
1073         }
1074
1075         /**
1076          * Create a new post for any registered post type.
1077          *
1078          * @since 3.4.0
1079          *
1080          * @param array $args Method parameters. Contains:
1081          *  - int     $blog_id (unused)
1082          *  - string  $username
1083          *  - string  $password
1084          *  - array   $content_struct
1085          *      $content_struct can contain:
1086          *      - post_type (default: 'post')
1087          *      - post_status (default: 'draft')
1088          *      - post_title
1089          *      - post_author
1090          *      - post_excerpt
1091          *      - post_content
1092          *      - post_date_gmt | post_date
1093          *      - post_format
1094          *      - post_password
1095          *      - comment_status - can be 'open' | 'closed'
1096          *      - ping_status - can be 'open' | 'closed'
1097          *      - sticky
1098          *      - post_thumbnail - ID of a media item to use as the post thumbnail/featured image
1099          *      - custom_fields - array, with each element containing 'key' and 'value'
1100          *      - terms - array, with taxonomy names as keys and arrays of term IDs as values
1101          *      - terms_names - array, with taxonomy names as keys and arrays of term names as values
1102          *      - enclosure
1103          *      - any other fields supported by wp_insert_post()
1104          * @return string|IXR_Error post_id
1105          */
1106         public function wp_newPost( $args ) {
1107                 if ( ! $this->minimum_args( $args, 4 ) )
1108                         return $this->error;
1109
1110                 $this->escape( $args );
1111
1112                 $username       = $args[1];
1113                 $password       = $args[2];
1114                 $content_struct = $args[3];
1115
1116                 if ( ! $user = $this->login( $username, $password ) )
1117                         return $this->error;
1118
1119                 // convert the date field back to IXR form
1120                 if ( isset( $content_struct['post_date'] ) && ! ( $content_struct['post_date'] instanceof IXR_Date ) ) {
1121                         $content_struct['post_date'] = $this->_convert_date( $content_struct['post_date'] );
1122                 }
1123
1124                 // ignore the existing GMT date if it is empty or a non-GMT date was supplied in $content_struct,
1125                 // since _insert_post will ignore the non-GMT date if the GMT date is set
1126                 if ( isset( $content_struct['post_date_gmt'] ) && ! ( $content_struct['post_date_gmt'] instanceof IXR_Date ) ) {
1127                         if ( $content_struct['post_date_gmt'] == '0000-00-00 00:00:00' || isset( $content_struct['post_date'] ) ) {
1128                                 unset( $content_struct['post_date_gmt'] );
1129                         } else {
1130                                 $content_struct['post_date_gmt'] = $this->_convert_date( $content_struct['post_date_gmt'] );
1131                         }
1132                 }
1133
1134                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1135                 do_action( 'xmlrpc_call', 'wp.newPost' );
1136
1137                 unset( $content_struct['ID'] );
1138
1139                 return $this->_insert_post( $user, $content_struct );
1140         }
1141
1142         /**
1143          * Helper method for filtering out elements from an array.
1144          *
1145          * @since 3.4.0
1146          *
1147          * @param int $count Number to compare to one.
1148          */
1149         private function _is_greater_than_one( $count ) {
1150                 return $count > 1;
1151         }
1152
1153         /**
1154          * Helper method for wp_newPost and wp_editPost, containing shared logic.
1155          *
1156          * @since 3.4.0
1157          * @uses wp_insert_post()
1158          *
1159          * @param WP_User $user The post author if post_author isn't set in $content_struct.
1160          * @param array|IXR_Error $content_struct Post data to insert.
1161          */
1162         protected function _insert_post( $user, $content_struct ) {
1163                 $defaults = array( 'post_status' => 'draft', 'post_type' => 'post', 'post_author' => 0,
1164                         'post_password' => '', 'post_excerpt' => '', 'post_content' => '', 'post_title' => '' );
1165
1166                 $post_data = wp_parse_args( $content_struct, $defaults );
1167
1168                 $post_type = get_post_type_object( $post_data['post_type'] );
1169                 if ( ! $post_type )
1170                         return new IXR_Error( 403, __( 'Invalid post type' ) );
1171
1172                 $update = ! empty( $post_data['ID'] );
1173
1174                 if ( $update ) {
1175                         if ( ! get_post( $post_data['ID'] ) )
1176                                 return new IXR_Error( 401, __( 'Invalid post ID.' ) );
1177                         if ( ! current_user_can( 'edit_post', $post_data['ID'] ) )
1178                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit this post.' ) );
1179                         if ( $post_data['post_type'] != get_post_type( $post_data['ID'] ) )
1180                                 return new IXR_Error( 401, __( 'The post type may not be changed.' ) );
1181                 } else {
1182                         if ( ! current_user_can( $post_type->cap->create_posts ) || ! current_user_can( $post_type->cap->edit_posts ) )
1183                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to post on this site.' ) );
1184                 }
1185
1186                 switch ( $post_data['post_status'] ) {
1187                         case 'draft':
1188                         case 'pending':
1189                                 break;
1190                         case 'private':
1191                                 if ( ! current_user_can( $post_type->cap->publish_posts ) )
1192                                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to create private posts in this post type' ) );
1193                                 break;
1194                         case 'publish':
1195                         case 'future':
1196                                 if ( ! current_user_can( $post_type->cap->publish_posts ) )
1197                                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to publish posts in this post type' ) );
1198                                 break;
1199                         default:
1200                                 if ( ! get_post_status_object( $post_data['post_status'] ) )
1201                                         $post_data['post_status'] = 'draft';
1202                         break;
1203                 }
1204
1205                 if ( ! empty( $post_data['post_password'] ) && ! current_user_can( $post_type->cap->publish_posts ) )
1206                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to create password protected posts in this post type' ) );
1207
1208                 $post_data['post_author'] = absint( $post_data['post_author'] );
1209                 if ( ! empty( $post_data['post_author'] ) && $post_data['post_author'] != $user->ID ) {
1210                         if ( ! current_user_can( $post_type->cap->edit_others_posts ) )
1211                                 return new IXR_Error( 401, __( 'You are not allowed to create posts as this user.' ) );
1212
1213                         $author = get_userdata( $post_data['post_author'] );
1214
1215                         if ( ! $author )
1216                                 return new IXR_Error( 404, __( 'Invalid author ID.' ) );
1217                 } else {
1218                         $post_data['post_author'] = $user->ID;
1219                 }
1220
1221                 if ( isset( $post_data['comment_status'] ) && $post_data['comment_status'] != 'open' && $post_data['comment_status'] != 'closed' )
1222                         unset( $post_data['comment_status'] );
1223
1224                 if ( isset( $post_data['ping_status'] ) && $post_data['ping_status'] != 'open' && $post_data['ping_status'] != 'closed' )
1225                         unset( $post_data['ping_status'] );
1226
1227                 // Do some timestamp voodoo
1228                 if ( ! empty( $post_data['post_date_gmt'] ) ) {
1229                         // We know this is supposed to be GMT, so we're going to slap that Z on there by force
1230                         $dateCreated = rtrim( $post_data['post_date_gmt']->getIso(), 'Z' ) . 'Z';
1231                 } elseif ( ! empty( $post_data['post_date'] ) ) {
1232                         $dateCreated = $post_data['post_date']->getIso();
1233                 }
1234
1235                 if ( ! empty( $dateCreated ) ) {
1236                         $post_data['post_date'] = get_date_from_gmt( iso8601_to_datetime( $dateCreated ) );
1237                         $post_data['post_date_gmt'] = iso8601_to_datetime( $dateCreated, 'GMT' );
1238                 }
1239
1240                 if ( ! isset( $post_data['ID'] ) )
1241                         $post_data['ID'] = get_default_post_to_edit( $post_data['post_type'], true )->ID;
1242                 $post_ID = $post_data['ID'];
1243
1244                 if ( $post_data['post_type'] == 'post' ) {
1245                         // Private and password-protected posts cannot be stickied.
1246                         if ( $post_data['post_status'] == 'private' || ! empty( $post_data['post_password'] ) ) {
1247                                 // Error if the client tried to stick the post, otherwise, silently unstick.
1248                                 if ( ! empty( $post_data['sticky'] ) )
1249                                         return new IXR_Error( 401, __( 'Sorry, you cannot stick a private post.' ) );
1250                                 if ( $update )
1251                                         unstick_post( $post_ID );
1252                         } elseif ( isset( $post_data['sticky'] ) )  {
1253                                 if ( ! current_user_can( $post_type->cap->edit_others_posts ) )
1254                                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to stick this post.' ) );
1255                                 if ( $post_data['sticky'] )
1256                                         stick_post( $post_ID );
1257                                 else
1258                                         unstick_post( $post_ID );
1259                         }
1260                 }
1261
1262                 if ( isset( $post_data['post_thumbnail'] ) ) {
1263                         // empty value deletes, non-empty value adds/updates
1264                         if ( ! $post_data['post_thumbnail'] )
1265                                 delete_post_thumbnail( $post_ID );
1266                         elseif ( ! get_post( absint( $post_data['post_thumbnail'] ) ) )
1267                                 return new IXR_Error( 404, __( 'Invalid attachment ID.' ) );
1268                         set_post_thumbnail( $post_ID, $post_data['post_thumbnail'] );
1269                         unset( $content_struct['post_thumbnail'] );
1270                 }
1271
1272                 if ( isset( $post_data['custom_fields'] ) )
1273                         $this->set_custom_fields( $post_ID, $post_data['custom_fields'] );
1274
1275                 if ( isset( $post_data['terms'] ) || isset( $post_data['terms_names'] ) ) {
1276                         $post_type_taxonomies = get_object_taxonomies( $post_data['post_type'], 'objects' );
1277
1278                         // accumulate term IDs from terms and terms_names
1279                         $terms = array();
1280
1281                         // first validate the terms specified by ID
1282                         if ( isset( $post_data['terms'] ) && is_array( $post_data['terms'] ) ) {
1283                                 $taxonomies = array_keys( $post_data['terms'] );
1284
1285                                 // validating term ids
1286                                 foreach ( $taxonomies as $taxonomy ) {
1287                                         if ( ! array_key_exists( $taxonomy , $post_type_taxonomies ) )
1288                                                 return new IXR_Error( 401, __( 'Sorry, one of the given taxonomies is not supported by the post type.' ) );
1289
1290                                         if ( ! current_user_can( $post_type_taxonomies[$taxonomy]->cap->assign_terms ) )
1291                                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to assign a term to one of the given taxonomies.' ) );
1292
1293                                         $term_ids = $post_data['terms'][$taxonomy];
1294                                         $terms[ $taxonomy ] = array();
1295                                         foreach ( $term_ids as $term_id ) {
1296                                                 $term = get_term_by( 'id', $term_id, $taxonomy );
1297
1298                                                 if ( ! $term )
1299                                                         return new IXR_Error( 403, __( 'Invalid term ID' ) );
1300
1301                                                 $terms[$taxonomy][] = (int) $term_id;
1302                                         }
1303                                 }
1304                         }
1305
1306                         // now validate terms specified by name
1307                         if ( isset( $post_data['terms_names'] ) && is_array( $post_data['terms_names'] ) ) {
1308                                 $taxonomies = array_keys( $post_data['terms_names'] );
1309
1310                                 foreach ( $taxonomies as $taxonomy ) {
1311                                         if ( ! array_key_exists( $taxonomy , $post_type_taxonomies ) )
1312                                                 return new IXR_Error( 401, __( 'Sorry, one of the given taxonomies is not supported by the post type.' ) );
1313
1314                                         if ( ! current_user_can( $post_type_taxonomies[$taxonomy]->cap->assign_terms ) )
1315                                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to assign a term to one of the given taxonomies.' ) );
1316
1317                                         // for hierarchical taxonomies, we can't assign a term when multiple terms in the hierarchy share the same name
1318                                         $ambiguous_terms = array();
1319                                         if ( is_taxonomy_hierarchical( $taxonomy ) ) {
1320                                                 $tax_term_names = get_terms( $taxonomy, array( 'fields' => 'names', 'hide_empty' => false ) );
1321
1322                                                 // count the number of terms with the same name
1323                                                 $tax_term_names_count = array_count_values( $tax_term_names );
1324
1325                                                 // filter out non-ambiguous term names
1326                                                 $ambiguous_tax_term_counts = array_filter( $tax_term_names_count, array( $this, '_is_greater_than_one') );
1327
1328                                                 $ambiguous_terms = array_keys( $ambiguous_tax_term_counts );
1329                                         }
1330
1331                                         $term_names = $post_data['terms_names'][$taxonomy];
1332                                         foreach ( $term_names as $term_name ) {
1333                                                 if ( in_array( $term_name, $ambiguous_terms ) )
1334                                                         return new IXR_Error( 401, __( 'Ambiguous term name used in a hierarchical taxonomy. Please use term ID instead.' ) );
1335
1336                                                 $term = get_term_by( 'name', $term_name, $taxonomy );
1337
1338                                                 if ( ! $term ) {
1339                                                         // term doesn't exist, so check that the user is allowed to create new terms
1340                                                         if ( ! current_user_can( $post_type_taxonomies[$taxonomy]->cap->edit_terms ) )
1341                                                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to add a term to one of the given taxonomies.' ) );
1342
1343                                                         // create the new term
1344                                                         $term_info = wp_insert_term( $term_name, $taxonomy );
1345                                                         if ( is_wp_error( $term_info ) )
1346                                                                 return new IXR_Error( 500, $term_info->get_error_message() );
1347
1348                                                         $terms[$taxonomy][] = (int) $term_info['term_id'];
1349                                                 } else {
1350                                                         $terms[$taxonomy][] = (int) $term->term_id;
1351                                                 }
1352                                         }
1353                                 }
1354                         }
1355
1356                         $post_data['tax_input'] = $terms;
1357                         unset( $post_data['terms'], $post_data['terms_names'] );
1358                 } else {
1359                         // do not allow direct submission of 'tax_input', clients must use 'terms' and/or 'terms_names'
1360                         unset( $post_data['tax_input'], $post_data['post_category'], $post_data['tags_input'] );
1361                 }
1362
1363                 if ( isset( $post_data['post_format'] ) ) {
1364                         $format = set_post_format( $post_ID, $post_data['post_format'] );
1365
1366                         if ( is_wp_error( $format ) )
1367                                 return new IXR_Error( 500, $format->get_error_message() );
1368
1369                         unset( $post_data['post_format'] );
1370                 }
1371
1372                 // Handle enclosures
1373                 $enclosure = isset( $post_data['enclosure'] ) ? $post_data['enclosure'] : null;
1374                 $this->add_enclosure_if_new( $post_ID, $enclosure );
1375
1376                 $this->attach_uploads( $post_ID, $post_data['post_content'] );
1377
1378                 /**
1379                  * Filter post data array to be inserted via XML-RPC.
1380                  *
1381                  * @since 3.4.0
1382                  *
1383                  * @param array $post_data      Parsed array of post data.
1384                  * @param array $content_struct Post data array.
1385                  */
1386                 $post_data = apply_filters( 'xmlrpc_wp_insert_post_data', $post_data, $content_struct );
1387
1388                 $post_ID = $update ? wp_update_post( $post_data, true ) : wp_insert_post( $post_data, true );
1389                 if ( is_wp_error( $post_ID ) )
1390                         return new IXR_Error( 500, $post_ID->get_error_message() );
1391
1392                 if ( ! $post_ID )
1393                         return new IXR_Error( 401, __( 'Sorry, your entry could not be posted. Something wrong happened.' ) );
1394
1395                 return strval( $post_ID );
1396         }
1397
1398         /**
1399          * Edit a post for any registered post type.
1400          *
1401          * The $content_struct parameter only needs to contain fields that
1402          * should be changed. All other fields will retain their existing values.
1403          *
1404          * @since 3.4.0
1405          *
1406          * @param array $args Method parameters. Contains:
1407          *  - int     $blog_id (unused)
1408          *  - string  $username
1409          *  - string  $password
1410          *  - int     $post_id
1411          *  - array   $content_struct
1412          * @return bool|IXR_Error true on success
1413          */
1414         public function wp_editPost( $args ) {
1415                 if ( ! $this->minimum_args( $args, 5 ) )
1416                         return $this->error;
1417
1418                 $this->escape( $args );
1419
1420                 $username       = $args[1];
1421                 $password       = $args[2];
1422                 $post_id        = (int) $args[3];
1423                 $content_struct = $args[4];
1424
1425                 if ( ! $user = $this->login( $username, $password ) )
1426                         return $this->error;
1427
1428                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1429                 do_action( 'xmlrpc_call', 'wp.editPost' );
1430
1431                 $post = get_post( $post_id, ARRAY_A );
1432
1433                 if ( empty( $post['ID'] ) )
1434                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
1435
1436                 if ( isset( $content_struct['if_not_modified_since'] ) ) {
1437                         // If the post has been modified since the date provided, return an error.
1438                         if ( mysql2date( 'U', $post['post_modified_gmt'] ) > $content_struct['if_not_modified_since']->getTimestamp() ) {
1439                                 return new IXR_Error( 409, __( 'There is a revision of this post that is more recent.' ) );
1440                         }
1441                 }
1442
1443                 // convert the date field back to IXR form
1444                 $post['post_date'] = $this->_convert_date( $post['post_date'] );
1445
1446                 // ignore the existing GMT date if it is empty or a non-GMT date was supplied in $content_struct,
1447                 // since _insert_post will ignore the non-GMT date if the GMT date is set
1448                 if ( $post['post_date_gmt'] == '0000-00-00 00:00:00' || isset( $content_struct['post_date'] ) )
1449                         unset( $post['post_date_gmt'] );
1450                 else
1451                         $post['post_date_gmt'] = $this->_convert_date( $post['post_date_gmt'] );
1452
1453                 $this->escape( $post );
1454                 $merged_content_struct = array_merge( $post, $content_struct );
1455
1456                 $retval = $this->_insert_post( $user, $merged_content_struct );
1457                 if ( $retval instanceof IXR_Error )
1458                         return $retval;
1459
1460                 return true;
1461         }
1462
1463         /**
1464          * Delete a post for any registered post type.
1465          *
1466          * @since 3.4.0
1467          *
1468          * @uses wp_delete_post()
1469          * @param array $args Method parameters. Contains:
1470          *  - int     $blog_id (unused)
1471          *  - string  $username
1472          *  - string  $password
1473          *  - int     $post_id
1474          * @return bool|IXR_Error true on success
1475          */
1476         public function wp_deletePost( $args ) {
1477                 if ( ! $this->minimum_args( $args, 4 ) )
1478                         return $this->error;
1479
1480                 $this->escape( $args );
1481
1482                 $username   = $args[1];
1483                 $password   = $args[2];
1484                 $post_id    = (int) $args[3];
1485
1486                 if ( ! $user = $this->login( $username, $password ) )
1487                         return $this->error;
1488
1489                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1490                 do_action( 'xmlrpc_call', 'wp.deletePost' );
1491
1492                 $post = get_post( $post_id, ARRAY_A );
1493                 if ( empty( $post['ID'] ) )
1494                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
1495
1496                 if ( ! current_user_can( 'delete_post', $post_id ) )
1497                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to delete this post.' ) );
1498
1499                 $result = wp_delete_post( $post_id );
1500
1501                 if ( ! $result )
1502                         return new IXR_Error( 500, __( 'The post cannot be deleted.' ) );
1503
1504                 return true;
1505         }
1506
1507         /**
1508          * Retrieve a post.
1509          *
1510          * @since 3.4.0
1511          *
1512          * The optional $fields parameter specifies what fields will be included
1513          * in the response array. This should be a list of field names. 'post_id' will
1514          * always be included in the response regardless of the value of $fields.
1515          *
1516          * Instead of, or in addition to, individual field names, conceptual group
1517          * names can be used to specify multiple fields. The available conceptual
1518          * groups are 'post' (all basic fields), 'taxonomies', 'custom_fields',
1519          * and 'enclosure'.
1520          *
1521          * @uses get_post()
1522          * @param array $args Method parameters. Contains:
1523          *  - int     $blog_id (unused)
1524          *  - string  $username
1525          *  - string  $password
1526          *  - int     $post_id
1527          *  - array   $fields optional
1528          * @return array|IXR_Error Array contains (based on $fields parameter):
1529          *  - 'post_id'
1530          *  - 'post_title'
1531          *  - 'post_date'
1532          *  - 'post_date_gmt'
1533          *  - 'post_modified'
1534          *  - 'post_modified_gmt'
1535          *  - 'post_status'
1536          *  - 'post_type'
1537          *  - 'post_name'
1538          *  - 'post_author'
1539          *  - 'post_password'
1540          *  - 'post_excerpt'
1541          *  - 'post_content'
1542          *  - 'link'
1543          *  - 'comment_status'
1544          *  - 'ping_status'
1545          *  - 'sticky'
1546          *  - 'custom_fields'
1547          *  - 'terms'
1548          *  - 'categories'
1549          *  - 'tags'
1550          *  - 'enclosure'
1551          */
1552         public function wp_getPost( $args ) {
1553                 if ( ! $this->minimum_args( $args, 4 ) )
1554                         return $this->error;
1555
1556                 $this->escape( $args );
1557
1558                 $username           = $args[1];
1559                 $password           = $args[2];
1560                 $post_id            = (int) $args[3];
1561
1562                 if ( isset( $args[4] ) ) {
1563                         $fields = $args[4];
1564                 } else {
1565                         /**
1566                          * Filter the list of post query fields used by the given XML-RPC method.
1567                          *
1568                          * @since 3.4.0
1569                          *
1570                          * @param array $fields  Array of post fields.
1571                          * @param string $method Method name.
1572                          */
1573                         $fields = apply_filters( 'xmlrpc_default_post_fields', array( 'post', 'terms', 'custom_fields' ), 'wp.getPost' );
1574                 }
1575
1576                 if ( ! $user = $this->login( $username, $password ) )
1577                         return $this->error;
1578
1579                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1580                 do_action( 'xmlrpc_call', 'wp.getPost' );
1581
1582                 $post = get_post( $post_id, ARRAY_A );
1583
1584                 if ( empty( $post['ID'] ) )
1585                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
1586
1587                 if ( ! current_user_can( 'edit_post', $post_id ) )
1588                         return new IXR_Error( 401, __( 'Sorry, you cannot edit this post.' ) );
1589
1590                 return $this->_prepare_post( $post, $fields );
1591         }
1592
1593         /**
1594          * Retrieve posts.
1595          *
1596          * @since 3.4.0
1597          *
1598          * The optional $filter parameter modifies the query used to retrieve posts.
1599          * Accepted keys are 'post_type', 'post_status', 'number', 'offset',
1600          * 'orderby', and 'order'.
1601          *
1602          * The optional $fields parameter specifies what fields will be included
1603          * in the response array.
1604          *
1605          * @uses wp_get_recent_posts()
1606          * @see wp_getPost() for more on $fields
1607          * @see get_posts() for more on $filter values
1608          *
1609          * @param array $args Method parameters. Contains:
1610          *  - int     $blog_id (unused)
1611          *  - string  $username
1612          *  - string  $password
1613          *  - array   $filter optional
1614          *  - array   $fields optional
1615          * @return array|IXR_Error Array contains a collection of posts.
1616          */
1617         public function wp_getPosts( $args ) {
1618                 if ( ! $this->minimum_args( $args, 3 ) )
1619                         return $this->error;
1620
1621                 $this->escape( $args );
1622
1623                 $username   = $args[1];
1624                 $password   = $args[2];
1625                 $filter     = isset( $args[3] ) ? $args[3] : array();
1626
1627                 if ( isset( $args[4] ) ) {
1628                         $fields = $args[4];
1629                 } else {
1630                         /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1631                         $fields = apply_filters( 'xmlrpc_default_post_fields', array( 'post', 'terms', 'custom_fields' ), 'wp.getPosts' );
1632                 }
1633
1634                 if ( ! $user = $this->login( $username, $password ) )
1635                         return $this->error;
1636
1637                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1638                 do_action( 'xmlrpc_call', 'wp.getPosts' );
1639
1640                 $query = array();
1641
1642                 if ( isset( $filter['post_type'] ) ) {
1643                         $post_type = get_post_type_object( $filter['post_type'] );
1644                         if ( ! ( (bool) $post_type ) )
1645                                 return new IXR_Error( 403, __( 'The post type specified is not valid' ) );
1646                 } else {
1647                         $post_type = get_post_type_object( 'post' );
1648                 }
1649
1650                 if ( ! current_user_can( $post_type->cap->edit_posts ) )
1651                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit posts in this post type' ));
1652
1653                 $query['post_type'] = $post_type->name;
1654
1655                 if ( isset( $filter['post_status'] ) )
1656                         $query['post_status'] = $filter['post_status'];
1657
1658                 if ( isset( $filter['number'] ) )
1659                         $query['numberposts'] = absint( $filter['number'] );
1660
1661                 if ( isset( $filter['offset'] ) )
1662                         $query['offset'] = absint( $filter['offset'] );
1663
1664                 if ( isset( $filter['orderby'] ) ) {
1665                         $query['orderby'] = $filter['orderby'];
1666
1667                         if ( isset( $filter['order'] ) )
1668                                 $query['order'] = $filter['order'];
1669                 }
1670
1671                 if ( isset( $filter['s'] ) ) {
1672                         $query['s'] = $filter['s'];
1673                 }
1674
1675                 $posts_list = wp_get_recent_posts( $query );
1676
1677                 if ( ! $posts_list )
1678                         return array();
1679
1680                 // holds all the posts data
1681                 $struct = array();
1682
1683                 foreach ( $posts_list as $post ) {
1684                         if ( ! current_user_can( 'edit_post', $post['ID'] ) )
1685                                 continue;
1686
1687                         $struct[] = $this->_prepare_post( $post, $fields );
1688                 }
1689
1690                 return $struct;
1691         }
1692
1693         /**
1694          * Create a new term.
1695          *
1696          * @since 3.4.0
1697          *
1698          * @uses wp_insert_term()
1699          * @param array $args Method parameters. Contains:
1700          *  - int     $blog_id (unused)
1701          *  - string  $username
1702          *  - string  $password
1703          *  - array   $content_struct
1704          *      The $content_struct must contain:
1705          *      - 'name'
1706          *      - 'taxonomy'
1707          *      Also, it can optionally contain:
1708          *      - 'parent'
1709          *      - 'description'
1710          *      - 'slug'
1711          * @return string|IXR_Error term_id
1712          */
1713         public function wp_newTerm( $args ) {
1714                 if ( ! $this->minimum_args( $args, 4 ) )
1715                         return $this->error;
1716
1717                 $this->escape( $args );
1718
1719                 $username           = $args[1];
1720                 $password           = $args[2];
1721                 $content_struct     = $args[3];
1722
1723                 if ( ! $user = $this->login( $username, $password ) )
1724                         return $this->error;
1725
1726                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1727                 do_action( 'xmlrpc_call', 'wp.newTerm' );
1728
1729                 if ( ! taxonomy_exists( $content_struct['taxonomy'] ) )
1730                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
1731
1732                 $taxonomy = get_taxonomy( $content_struct['taxonomy'] );
1733
1734                 if ( ! current_user_can( $taxonomy->cap->manage_terms ) )
1735                         return new IXR_Error( 401, __( 'You are not allowed to create terms in this taxonomy.' ) );
1736
1737                 $taxonomy = (array) $taxonomy;
1738
1739                 // hold the data of the term
1740                 $term_data = array();
1741
1742                 $term_data['name'] = trim( $content_struct['name'] );
1743                 if ( empty( $term_data['name'] ) )
1744                         return new IXR_Error( 403, __( 'The term name cannot be empty.' ) );
1745
1746                 if ( isset( $content_struct['parent'] ) ) {
1747                         if ( ! $taxonomy['hierarchical'] )
1748                                 return new IXR_Error( 403, __( 'This taxonomy is not hierarchical.' ) );
1749
1750                         $parent_term_id = (int) $content_struct['parent'];
1751                         $parent_term = get_term( $parent_term_id , $taxonomy['name'] );
1752
1753                         if ( is_wp_error( $parent_term ) )
1754                                 return new IXR_Error( 500, $parent_term->get_error_message() );
1755
1756                         if ( ! $parent_term )
1757                                 return new IXR_Error( 403, __( 'Parent term does not exist.' ) );
1758
1759                         $term_data['parent'] = $content_struct['parent'];
1760                 }
1761
1762                 if ( isset( $content_struct['description'] ) )
1763                         $term_data['description'] = $content_struct['description'];
1764
1765                 if ( isset( $content_struct['slug'] ) )
1766                         $term_data['slug'] = $content_struct['slug'];
1767
1768                 $term = wp_insert_term( $term_data['name'] , $taxonomy['name'] , $term_data );
1769
1770                 if ( is_wp_error( $term ) )
1771                         return new IXR_Error( 500, $term->get_error_message() );
1772
1773                 if ( ! $term )
1774                         return new IXR_Error( 500, __( 'Sorry, your term could not be created. Something wrong happened.' ) );
1775
1776                 return strval( $term['term_id'] );
1777         }
1778
1779         /**
1780          * Edit a term.
1781          *
1782          * @since 3.4.0
1783          *
1784          * @uses wp_update_term()
1785          * @param array $args Method parameters. Contains:
1786          *  - int     $blog_id (unused)
1787          *  - string  $username
1788          *  - string  $password
1789          *  - string  $term_id
1790          *  - array   $content_struct
1791          *      The $content_struct must contain:
1792          *      - 'taxonomy'
1793          *      Also, it can optionally contain:
1794          *      - 'name'
1795          *      - 'parent'
1796          *      - 'description'
1797          *      - 'slug'
1798          * @return bool|IXR_Error True, on success.
1799          */
1800         public function wp_editTerm( $args ) {
1801                 if ( ! $this->minimum_args( $args, 5 ) )
1802                         return $this->error;
1803
1804                 $this->escape( $args );
1805
1806                 $username           = $args[1];
1807                 $password           = $args[2];
1808                 $term_id            = (int) $args[3];
1809                 $content_struct     = $args[4];
1810
1811                 if ( ! $user = $this->login( $username, $password ) )
1812                         return $this->error;
1813
1814                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1815                 do_action( 'xmlrpc_call', 'wp.editTerm' );
1816
1817                 if ( ! taxonomy_exists( $content_struct['taxonomy'] ) )
1818                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
1819
1820                 $taxonomy = get_taxonomy( $content_struct['taxonomy'] );
1821
1822                 if ( ! current_user_can( $taxonomy->cap->edit_terms ) )
1823                         return new IXR_Error( 401, __( 'You are not allowed to edit terms in this taxonomy.' ) );
1824
1825                 $taxonomy = (array) $taxonomy;
1826
1827                 // hold the data of the term
1828                 $term_data = array();
1829
1830                 $term = get_term( $term_id , $content_struct['taxonomy'] );
1831
1832                 if ( is_wp_error( $term ) )
1833                         return new IXR_Error( 500, $term->get_error_message() );
1834
1835                 if ( ! $term )
1836                         return new IXR_Error( 404, __( 'Invalid term ID' ) );
1837
1838                 if ( isset( $content_struct['name'] ) ) {
1839                         $term_data['name'] = trim( $content_struct['name'] );
1840
1841                         if ( empty( $term_data['name'] ) )
1842                                 return new IXR_Error( 403, __( 'The term name cannot be empty.' ) );
1843                 }
1844
1845                 if ( isset( $content_struct['parent'] ) ) {
1846                         if ( ! $taxonomy['hierarchical'] )
1847                                 return new IXR_Error( 403, __( "This taxonomy is not hierarchical so you can't set a parent." ) );
1848
1849                         $parent_term_id = (int) $content_struct['parent'];
1850                         $parent_term = get_term( $parent_term_id , $taxonomy['name'] );
1851
1852                         if ( is_wp_error( $parent_term ) )
1853                                 return new IXR_Error( 500, $parent_term->get_error_message() );
1854
1855                         if ( ! $parent_term )
1856                                 return new IXR_Error( 403, __( 'Parent term does not exist.' ) );
1857
1858                         $term_data['parent'] = $content_struct['parent'];
1859                 }
1860
1861                 if ( isset( $content_struct['description'] ) )
1862                         $term_data['description'] = $content_struct['description'];
1863
1864                 if ( isset( $content_struct['slug'] ) )
1865                         $term_data['slug'] = $content_struct['slug'];
1866
1867                 $term = wp_update_term( $term_id , $taxonomy['name'] , $term_data );
1868
1869                 if ( is_wp_error( $term ) )
1870                         return new IXR_Error( 500, $term->get_error_message() );
1871
1872                 if ( ! $term )
1873                         return new IXR_Error( 500, __( 'Sorry, editing the term failed.' ) );
1874
1875                 return true;
1876         }
1877
1878         /**
1879          * Delete a term.
1880          *
1881          * @since 3.4.0
1882          *
1883          * @uses wp_delete_term()
1884          * @param array $args Method parameters. Contains:
1885          *  - int     $blog_id (unused)
1886          *  - string  $username
1887          *  - string  $password
1888          *  - string  $taxnomy_name
1889          *  - string     $term_id
1890          * @return boolean|IXR_Error If it suceeded true else a reason why not
1891          */
1892         public function wp_deleteTerm( $args ) {
1893                 if ( ! $this->minimum_args( $args, 5 ) )
1894                         return $this->error;
1895
1896                 $this->escape( $args );
1897
1898                 $username           = $args[1];
1899                 $password           = $args[2];
1900                 $taxonomy           = $args[3];
1901                 $term_id            = (int) $args[4];
1902
1903                 if ( ! $user = $this->login( $username, $password ) )
1904                         return $this->error;
1905
1906                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1907                 do_action( 'xmlrpc_call', 'wp.deleteTerm' );
1908
1909                 if ( ! taxonomy_exists( $taxonomy ) )
1910                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
1911
1912                 $taxonomy = get_taxonomy( $taxonomy );
1913
1914                 if ( ! current_user_can( $taxonomy->cap->delete_terms ) )
1915                         return new IXR_Error( 401, __( 'You are not allowed to delete terms in this taxonomy.' ) );
1916
1917                 $term = get_term( $term_id, $taxonomy->name );
1918
1919                 if ( is_wp_error( $term ) )
1920                         return new IXR_Error( 500, $term->get_error_message() );
1921
1922                 if ( ! $term )
1923                         return new IXR_Error( 404, __( 'Invalid term ID' ) );
1924
1925                 $result = wp_delete_term( $term_id, $taxonomy->name );
1926
1927                 if ( is_wp_error( $result ) )
1928                         return new IXR_Error( 500, $term->get_error_message() );
1929
1930                 if ( ! $result )
1931                         return new IXR_Error( 500, __( 'Sorry, deleting the term failed.' ) );
1932
1933                 return $result;
1934         }
1935
1936         /**
1937          * Retrieve a term.
1938          *
1939          * @since 3.4.0
1940          *
1941          * @uses get_term()
1942          * @param array $args Method parameters. Contains:
1943          *  - int     $blog_id (unused)
1944          *  - string  $username
1945          *  - string  $password
1946          *  - string  $taxonomy
1947          *  - string  $term_id
1948          * @return array|IXR_Error Array contains:
1949          *  - 'term_id'
1950          *  - 'name'
1951          *  - 'slug'
1952          *  - 'term_group'
1953          *  - 'term_taxonomy_id'
1954          *  - 'taxonomy'
1955          *  - 'description'
1956          *  - 'parent'
1957          *  - 'count'
1958          */
1959         public function wp_getTerm( $args ) {
1960                 if ( ! $this->minimum_args( $args, 5 ) )
1961                         return $this->error;
1962
1963                 $this->escape( $args );
1964
1965                 $username           = $args[1];
1966                 $password           = $args[2];
1967                 $taxonomy           = $args[3];
1968                 $term_id            = (int) $args[4];
1969
1970                 if ( ! $user = $this->login( $username, $password ) )
1971                         return $this->error;
1972
1973                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1974                 do_action( 'xmlrpc_call', 'wp.getTerm' );
1975
1976                 if ( ! taxonomy_exists( $taxonomy ) )
1977                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
1978
1979                 $taxonomy = get_taxonomy( $taxonomy );
1980
1981                 if ( ! current_user_can( $taxonomy->cap->assign_terms ) )
1982                         return new IXR_Error( 401, __( 'You are not allowed to assign terms in this taxonomy.' ) );
1983
1984                 $term = get_term( $term_id , $taxonomy->name, ARRAY_A );
1985
1986                 if ( is_wp_error( $term ) )
1987                         return new IXR_Error( 500, $term->get_error_message() );
1988
1989                 if ( ! $term )
1990                         return new IXR_Error( 404, __( 'Invalid term ID' ) );
1991
1992                 return $this->_prepare_term( $term );
1993         }
1994
1995         /**
1996          * Retrieve all terms for a taxonomy.
1997          *
1998          * @since 3.4.0
1999          *
2000          * The optional $filter parameter modifies the query used to retrieve terms.
2001          * Accepted keys are 'number', 'offset', 'orderby', 'order', 'hide_empty', and 'search'.
2002          *
2003          * @uses get_terms()
2004          * @param array $args Method parameters. Contains:
2005          *  - int     $blog_id (unused)
2006          *  - string  $username
2007          *  - string  $password
2008          *  - string  $taxonomy
2009          *  - array   $filter optional
2010          * @return array|IXR_Error terms
2011          */
2012         public function wp_getTerms( $args ) {
2013                 if ( ! $this->minimum_args( $args, 4 ) )
2014                         return $this->error;
2015
2016                 $this->escape( $args );
2017
2018                 $username       = $args[1];
2019                 $password       = $args[2];
2020                 $taxonomy       = $args[3];
2021                 $filter         = isset( $args[4] ) ? $args[4] : array();
2022
2023                 if ( ! $user = $this->login( $username, $password ) )
2024                         return $this->error;
2025
2026                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2027                 do_action( 'xmlrpc_call', 'wp.getTerms' );
2028
2029                 if ( ! taxonomy_exists( $taxonomy ) )
2030                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
2031
2032                 $taxonomy = get_taxonomy( $taxonomy );
2033
2034                 if ( ! current_user_can( $taxonomy->cap->assign_terms ) )
2035                         return new IXR_Error( 401, __( 'You are not allowed to assign terms in this taxonomy.' ) );
2036
2037                 $query = array();
2038
2039                 if ( isset( $filter['number'] ) )
2040                         $query['number'] = absint( $filter['number'] );
2041
2042                 if ( isset( $filter['offset'] ) )
2043                         $query['offset'] = absint( $filter['offset'] );
2044
2045                 if ( isset( $filter['orderby'] ) ) {
2046                         $query['orderby'] = $filter['orderby'];
2047
2048                         if ( isset( $filter['order'] ) )
2049                                 $query['order'] = $filter['order'];
2050                 }
2051
2052                 if ( isset( $filter['hide_empty'] ) )
2053                         $query['hide_empty'] = $filter['hide_empty'];
2054                 else
2055                         $query['get'] = 'all';
2056
2057                 if ( isset( $filter['search'] ) )
2058                         $query['search'] = $filter['search'];
2059
2060                 $terms = get_terms( $taxonomy->name, $query );
2061
2062                 if ( is_wp_error( $terms ) )
2063                         return new IXR_Error( 500, $terms->get_error_message() );
2064
2065                 $struct = array();
2066
2067                 foreach ( $terms as $term ) {
2068                         $struct[] = $this->_prepare_term( $term );
2069                 }
2070
2071                 return $struct;
2072         }
2073
2074         /**
2075          * Retrieve a taxonomy.
2076          *
2077          * @since 3.4.0
2078          *
2079          * @uses get_taxonomy()
2080          * @param array $args Method parameters. Contains:
2081          *  - int     $blog_id (unused)
2082          *  - string  $username
2083          *  - string  $password
2084          *  - string  $taxonomy
2085          * @return array|IXR_Error (@see get_taxonomy())
2086          */
2087         public function wp_getTaxonomy( $args ) {
2088                 if ( ! $this->minimum_args( $args, 4 ) )
2089                         return $this->error;
2090
2091                 $this->escape( $args );
2092
2093                 $username       = $args[1];
2094                 $password       = $args[2];
2095                 $taxonomy       = $args[3];
2096
2097                 if ( isset( $args[4] ) ) {
2098                         $fields = $args[4];
2099                 } else {
2100                         /**
2101                          * Filter the taxonomy query fields used by the given XML-RPC method.
2102                          *
2103                          * @since 3.4.0
2104                          *
2105                          * @param array  $fields An array of taxonomy fields to retrieve.
2106                          * @param string $method The method name.
2107                          */
2108                         $fields = apply_filters( 'xmlrpc_default_taxonomy_fields', array( 'labels', 'cap', 'object_type' ), 'wp.getTaxonomy' );
2109                 }
2110
2111                 if ( ! $user = $this->login( $username, $password ) )
2112                         return $this->error;
2113
2114                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2115                 do_action( 'xmlrpc_call', 'wp.getTaxonomy' );
2116
2117                 if ( ! taxonomy_exists( $taxonomy ) )
2118                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
2119
2120                 $taxonomy = get_taxonomy( $taxonomy );
2121
2122                 if ( ! current_user_can( $taxonomy->cap->assign_terms ) )
2123                         return new IXR_Error( 401, __( 'You are not allowed to assign terms in this taxonomy.' ) );
2124
2125                 return $this->_prepare_taxonomy( $taxonomy, $fields );
2126         }
2127
2128         /**
2129          * Retrieve all taxonomies.
2130          *
2131          * @since 3.4.0
2132          *
2133          * @uses get_taxonomies()
2134          * @param array $args Method parameters. Contains:
2135          *  - int     $blog_id (unused)
2136          *  - string  $username
2137          *  - string  $password
2138          * @return array taxonomies
2139          */
2140         public function wp_getTaxonomies( $args ) {
2141                 if ( ! $this->minimum_args( $args, 3 ) )
2142                         return $this->error;
2143
2144                 $this->escape( $args );
2145
2146                 $username           = $args[1];
2147                 $password           = $args[2];
2148                 $filter             = isset( $args[3] ) ? $args[3] : array( 'public' => true );
2149
2150                 if ( isset( $args[4] ) ) {
2151                         $fields = $args[4];
2152                 } else {
2153                         /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2154                         $fields = apply_filters( 'xmlrpc_default_taxonomy_fields', array( 'labels', 'cap', 'object_type' ), 'wp.getTaxonomies' );
2155                 }
2156
2157                 if ( ! $user = $this->login( $username, $password ) )
2158                         return $this->error;
2159
2160                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2161                 do_action( 'xmlrpc_call', 'wp.getTaxonomies' );
2162
2163                 $taxonomies = get_taxonomies( $filter, 'objects' );
2164
2165                 // holds all the taxonomy data
2166                 $struct = array();
2167
2168                 foreach ( $taxonomies as $taxonomy ) {
2169                         // capability check for post_types
2170                         if ( ! current_user_can( $taxonomy->cap->assign_terms ) )
2171                                 continue;
2172
2173                         $struct[] = $this->_prepare_taxonomy( $taxonomy, $fields );
2174                 }
2175
2176                 return $struct;
2177         }
2178
2179         /**
2180          * Retrieve a user.
2181          *
2182          * The optional $fields parameter specifies what fields will be included
2183          * in the response array. This should be a list of field names. 'user_id' will
2184          * always be included in the response regardless of the value of $fields.
2185          *
2186          * Instead of, or in addition to, individual field names, conceptual group
2187          * names can be used to specify multiple fields. The available conceptual
2188          * groups are 'basic' and 'all'.
2189          *
2190          * @uses get_userdata()
2191          * @param array $args Method parameters. Contains:
2192          *  - int     $blog_id (unused)
2193          *  - string  $username
2194          *  - string  $password
2195          *  - int     $user_id
2196          *  - array   $fields optional
2197          * @return array|IXR_Error Array contains (based on $fields parameter):
2198          *  - 'user_id'
2199          *  - 'username'
2200          *  - 'first_name'
2201          *  - 'last_name'
2202          *  - 'registered'
2203          *  - 'bio'
2204          *  - 'email'
2205          *  - 'nickname'
2206          *  - 'nicename'
2207          *  - 'url'
2208          *  - 'display_name'
2209          *  - 'roles'
2210          */
2211         public function wp_getUser( $args ) {
2212                 if ( ! $this->minimum_args( $args, 4 ) )
2213                         return $this->error;
2214
2215                 $this->escape( $args );
2216
2217                 $username   = $args[1];
2218                 $password   = $args[2];
2219                 $user_id    = (int) $args[3];
2220
2221                 if ( isset( $args[4] ) ) {
2222                         $fields = $args[4];
2223                 } else {
2224                         /**
2225                          * Filter the default user query fields used by the given XML-RPC method.
2226                          *
2227                          * @since 3.5.0
2228                          *
2229                          * @param array  $fields User query fields for given method. Default 'all'.
2230                          * @param string $method The method name.
2231                          */
2232                         $fields = apply_filters( 'xmlrpc_default_user_fields', array( 'all' ), 'wp.getUser' );
2233                 }
2234
2235                 if ( ! $user = $this->login( $username, $password ) )
2236                         return $this->error;
2237
2238                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2239                 do_action( 'xmlrpc_call', 'wp.getUser' );
2240
2241                 if ( ! current_user_can( 'edit_user', $user_id ) )
2242                         return new IXR_Error( 401, __( 'Sorry, you cannot edit users.' ) );
2243
2244                 $user_data = get_userdata( $user_id );
2245
2246                 if ( ! $user_data )
2247                         return new IXR_Error( 404, __( 'Invalid user ID' ) );
2248
2249                 return $this->_prepare_user( $user_data, $fields );
2250         }
2251
2252         /**
2253          * Retrieve users.
2254          *
2255          * The optional $filter parameter modifies the query used to retrieve users.
2256          * Accepted keys are 'number' (default: 50), 'offset' (default: 0), 'role',
2257          * 'who', 'orderby', and 'order'.
2258          *
2259          * The optional $fields parameter specifies what fields will be included
2260          * in the response array.
2261          *
2262          * @uses get_users()
2263          * @see wp_getUser() for more on $fields and return values
2264          *
2265          * @param array $args Method parameters. Contains:
2266          *  - int     $blog_id (unused)
2267          *  - string  $username
2268          *  - string  $password
2269          *  - array   $filter optional
2270          *  - array   $fields optional
2271          * @return array|IXR_Error users data
2272          */
2273         public function wp_getUsers( $args ) {
2274                 if ( ! $this->minimum_args( $args, 3 ) )
2275                         return $this->error;
2276
2277                 $this->escape( $args );
2278
2279                 $username   = $args[1];
2280                 $password   = $args[2];
2281                 $filter     = isset( $args[3] ) ? $args[3] : array();
2282
2283                 if ( isset( $args[4] ) ) {
2284                         $fields = $args[4];
2285                 } else {
2286                         /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2287                         $fields = apply_filters( 'xmlrpc_default_user_fields', array( 'all' ), 'wp.getUsers' );
2288                 }
2289
2290                 if ( ! $user = $this->login( $username, $password ) )
2291                         return $this->error;
2292
2293                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2294                 do_action( 'xmlrpc_call', 'wp.getUsers' );
2295
2296                 if ( ! current_user_can( 'list_users' ) )
2297                         return new IXR_Error( 401, __( 'Sorry, you cannot list users.' ) );
2298
2299                 $query = array( 'fields' => 'all_with_meta' );
2300
2301                 $query['number'] = ( isset( $filter['number'] ) ) ? absint( $filter['number'] ) : 50;
2302                 $query['offset'] = ( isset( $filter['offset'] ) ) ? absint( $filter['offset'] ) : 0;
2303
2304                 if ( isset( $filter['orderby'] ) ) {
2305                         $query['orderby'] = $filter['orderby'];
2306
2307                         if ( isset( $filter['order'] ) )
2308                                 $query['order'] = $filter['order'];
2309                 }
2310
2311                 if ( isset( $filter['role'] ) ) {
2312                         if ( get_role( $filter['role'] ) === null )
2313                                 return new IXR_Error( 403, __( 'The role specified is not valid' ) );
2314
2315                         $query['role'] = $filter['role'];
2316                 }
2317
2318                 if ( isset( $filter['who'] ) ) {
2319                         $query['who'] = $filter['who'];
2320                 }
2321
2322                 $users = get_users( $query );
2323
2324                 $_users = array();
2325                 foreach ( $users as $user_data ) {
2326                         if ( current_user_can( 'edit_user', $user_data->ID ) )
2327                                 $_users[] = $this->_prepare_user( $user_data, $fields );
2328                 }
2329                 return $_users;
2330         }
2331
2332         /**
2333          * Retrieve information about the requesting user.
2334          *
2335          * @uses get_userdata()
2336          * @param array $args Method parameters. Contains:
2337          *  - int     $blog_id (unused)
2338          *  - string  $username
2339          *  - string  $password
2340          *  - array   $fields optional
2341          * @return array|IXR_Error (@see wp_getUser)
2342          */
2343         public function wp_getProfile( $args ) {
2344                 if ( ! $this->minimum_args( $args, 3 ) )
2345                         return $this->error;
2346
2347                 $this->escape( $args );
2348
2349                 $username   = $args[1];
2350                 $password   = $args[2];
2351
2352                 if ( isset( $args[3] ) ) {
2353                         $fields = $args[3];
2354                 } else {
2355                         /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2356                         $fields = apply_filters( 'xmlrpc_default_user_fields', array( 'all' ), 'wp.getProfile' );
2357                 }
2358
2359                 if ( ! $user = $this->login( $username, $password ) )
2360                         return $this->error;
2361
2362                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2363                 do_action( 'xmlrpc_call', 'wp.getProfile' );
2364
2365                 if ( ! current_user_can( 'edit_user', $user->ID ) )
2366                         return new IXR_Error( 401, __( 'Sorry, you cannot edit your profile.' ) );
2367
2368                 $user_data = get_userdata( $user->ID );
2369
2370                 return $this->_prepare_user( $user_data, $fields );
2371         }
2372
2373         /**
2374          * Edit user's profile.
2375          *
2376          * @uses wp_update_user()
2377          * @param array $args Method parameters. Contains:
2378          *  - int     $blog_id (unused)
2379          *  - string  $username
2380          *  - string  $password
2381          *  - array   $content_struct
2382          *      It can optionally contain:
2383          *      - 'first_name'
2384          *      - 'last_name'
2385          *      - 'website'
2386          *      - 'display_name'
2387          *      - 'nickname'
2388          *      - 'nicename'
2389          *      - 'bio'
2390          * @return bool|IXR_Error True, on success.
2391          */
2392         public function wp_editProfile( $args ) {
2393                 if ( ! $this->minimum_args( $args, 4 ) )
2394                         return $this->error;
2395
2396                 $this->escape( $args );
2397
2398                 $username       = $args[1];
2399                 $password       = $args[2];
2400                 $content_struct = $args[3];
2401
2402                 if ( ! $user = $this->login( $username, $password ) )
2403                         return $this->error;
2404
2405                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2406                 do_action( 'xmlrpc_call', 'wp.editProfile' );
2407
2408                 if ( ! current_user_can( 'edit_user', $user->ID ) )
2409                         return new IXR_Error( 401, __( 'Sorry, you cannot edit your profile.' ) );
2410
2411                 // holds data of the user
2412                 $user_data = array();
2413                 $user_data['ID'] = $user->ID;
2414
2415                 // only set the user details if it was given
2416                 if ( isset( $content_struct['first_name'] ) )
2417                         $user_data['first_name'] = $content_struct['first_name'];
2418
2419                 if ( isset( $content_struct['last_name'] ) )
2420                         $user_data['last_name'] = $content_struct['last_name'];
2421
2422                 if ( isset( $content_struct['url'] ) )
2423                         $user_data['user_url'] = $content_struct['url'];
2424
2425                 if ( isset( $content_struct['display_name'] ) )
2426                         $user_data['display_name'] = $content_struct['display_name'];
2427
2428                 if ( isset( $content_struct['nickname'] ) )
2429                         $user_data['nickname'] = $content_struct['nickname'];
2430
2431                 if ( isset( $content_struct['nicename'] ) )
2432                         $user_data['user_nicename'] = $content_struct['nicename'];
2433
2434                 if ( isset( $content_struct['bio'] ) )
2435                         $user_data['description'] = $content_struct['bio'];
2436
2437                 $result = wp_update_user( $user_data );
2438
2439                 if ( is_wp_error( $result ) )
2440                         return new IXR_Error( 500, $result->get_error_message() );
2441
2442                 if ( ! $result )
2443                         return new IXR_Error( 500, __( 'Sorry, the user cannot be updated.' ) );
2444
2445                 return true;
2446         }
2447
2448         /**
2449          * Retrieve page.
2450          *
2451          * @since 2.2.0
2452          *
2453          * @param array $args Method parameters. Contains:
2454          *  - blog_id (unused)
2455          *  - page_id
2456          *  - username
2457          *  - password
2458          * @return array|IXR_Error
2459          */
2460         public function wp_getPage($args) {
2461                 $this->escape($args);
2462
2463                 $page_id        = (int) $args[1];
2464                 $username       = $args[2];
2465                 $password       = $args[3];
2466
2467                 if ( !$user = $this->login($username, $password) ) {
2468                         return $this->error;
2469                 }
2470
2471                 $page = get_post($page_id);
2472                 if ( ! $page )
2473                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
2474
2475                 if ( !current_user_can( 'edit_page', $page_id ) )
2476                         return new IXR_Error( 401, __( 'Sorry, you cannot edit this page.' ) );
2477
2478                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2479                 do_action( 'xmlrpc_call', 'wp.getPage' );
2480
2481                 // If we found the page then format the data.
2482                 if ( $page->ID && ($page->post_type == 'page') ) {
2483                         return $this->_prepare_page( $page );
2484                 }
2485                 // If the page doesn't exist indicate that.
2486                 else {
2487                         return new IXR_Error( 404, __( 'Sorry, no such page.' ) );
2488                 }
2489         }
2490
2491         /**
2492          * Retrieve Pages.
2493          *
2494          * @since 2.2.0
2495          *
2496          * @param array $args Method parameters. Contains:
2497          *  - blog_id (unused)
2498          *  - username
2499          *  - password
2500          *  - num_pages
2501          * @return array|IXR_Error
2502          */
2503         public function wp_getPages($args) {
2504                 $this->escape($args);
2505
2506                 $username       = $args[1];
2507                 $password       = $args[2];
2508                 $num_pages      = isset($args[3]) ? (int) $args[3] : 10;
2509
2510                 if ( !$user = $this->login($username, $password) )
2511                         return $this->error;
2512
2513                 if ( !current_user_can( 'edit_pages' ) )
2514                         return new IXR_Error( 401, __( 'Sorry, you cannot edit pages.' ) );
2515
2516                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2517                 do_action( 'xmlrpc_call', 'wp.getPages' );
2518
2519                 $pages = get_posts( array('post_type' => 'page', 'post_status' => 'any', 'numberposts' => $num_pages) );
2520                 $num_pages = count($pages);
2521
2522                 // If we have pages, put together their info.
2523                 if ( $num_pages >= 1 ) {
2524                         $pages_struct = array();
2525
2526                         foreach ($pages as $page) {
2527                                 if ( current_user_can( 'edit_page', $page->ID ) )
2528                                         $pages_struct[] = $this->_prepare_page( $page );
2529                         }
2530
2531                         return $pages_struct;
2532                 }
2533
2534                 return array();
2535         }
2536
2537         /**
2538          * Create new page.
2539          *
2540          * @since 2.2.0
2541          *
2542          * @param array $args Method parameters. See {@link wp_xmlrpc_server::mw_newPost()}
2543          * @return int|IXR_Error
2544          */
2545         public function wp_newPage($args) {
2546                 // Items not escaped here will be escaped in newPost.
2547                 $username       = $this->escape($args[1]);
2548                 $password       = $this->escape($args[2]);
2549
2550                 if ( !$user = $this->login($username, $password) )
2551                         return $this->error;
2552
2553                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2554                 do_action( 'xmlrpc_call', 'wp.newPage' );
2555
2556                 // Mark this as content for a page.
2557                 $args[3]["post_type"] = 'page';
2558
2559                 // Let mw_newPost do all of the heavy lifting.
2560                 return $this->mw_newPost( $args );
2561         }
2562
2563         /**
2564          * Delete page.
2565          *
2566          * @since 2.2.0
2567          *
2568          * @param array $args Method parameters.
2569          * @return bool|IXR_Error True, if success.
2570          */
2571         public function wp_deletePage($args) {
2572                 $this->escape($args);
2573
2574                 $username       = $args[1];
2575                 $password       = $args[2];
2576                 $page_id        = (int) $args[3];
2577
2578                 if ( !$user = $this->login($username, $password) )
2579                         return $this->error;
2580
2581                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2582                 do_action( 'xmlrpc_call', 'wp.deletePage' );
2583
2584                 // Get the current page based on the page_id and
2585                 // make sure it is a page and not a post.
2586                 $actual_page = get_post($page_id, ARRAY_A);
2587                 if ( !$actual_page || ($actual_page['post_type'] != 'page') )
2588                         return new IXR_Error( 404, __( 'Sorry, no such page.' ) );
2589
2590                 // Make sure the user can delete pages.
2591                 if ( !current_user_can('delete_page', $page_id) )
2592                         return new IXR_Error( 401, __( 'Sorry, you do not have the right to delete this page.' ) );
2593
2594                 // Attempt to delete the page.
2595                 $result = wp_delete_post($page_id);
2596                 if ( !$result )
2597                         return new IXR_Error( 500, __( 'Failed to delete the page.' ) );
2598
2599                 /**
2600                  * Fires after a page has been successfully deleted via XML-RPC.
2601                  *
2602                  * @since 3.4.0
2603                  *
2604                  * @param int   $page_id ID of the deleted page.
2605                  * @param array $args    An array of arguments to delete the page.
2606                  */
2607                 do_action( 'xmlrpc_call_success_wp_deletePage', $page_id, $args );
2608
2609                 return true;
2610         }
2611
2612         /**
2613          * Edit page.
2614          *
2615          * @since 2.2.0
2616          *
2617          * @param array $args Method parameters.
2618          * @return array|IXR_Error
2619          */
2620         public function wp_editPage($args) {
2621                 // Items not escaped here will be escaped in editPost.
2622                 $page_id        = (int) $this->escape($args[1]);
2623                 $username       = $this->escape($args[2]);
2624                 $password       = $this->escape($args[3]);
2625                 $content        = $args[4];
2626                 $publish        = $args[5];
2627
2628                 if ( !$user = $this->login($username, $password) )
2629                         return $this->error;
2630
2631                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2632                 do_action( 'xmlrpc_call', 'wp.editPage' );
2633
2634                 // Get the page data and make sure it is a page.
2635                 $actual_page = get_post($page_id, ARRAY_A);
2636                 if ( !$actual_page || ($actual_page['post_type'] != 'page') )
2637                         return new IXR_Error( 404, __( 'Sorry, no such page.' ) );
2638
2639                 // Make sure the user is allowed to edit pages.
2640                 if ( !current_user_can('edit_page', $page_id) )
2641                         return new IXR_Error( 401, __( 'Sorry, you do not have the right to edit this page.' ) );
2642
2643                 // Mark this as content for a page.
2644                 $content['post_type'] = 'page';
2645
2646                 // Arrange args in the way mw_editPost understands.
2647                 $args = array(
2648                         $page_id,
2649                         $username,
2650                         $password,
2651                         $content,
2652                         $publish
2653                 );
2654
2655                 // Let mw_editPost do all of the heavy lifting.
2656                 return $this->mw_editPost( $args );
2657         }
2658
2659         /**
2660          * Retrieve page list.
2661          *
2662          * @since 2.2.0
2663          *
2664          * @param array $args Method parameters.
2665          * @return array|IXR_Error
2666          */
2667         public function wp_getPageList($args) {
2668                 global $wpdb;
2669
2670                 $this->escape($args);
2671
2672                 $username                               = $args[1];
2673                 $password                               = $args[2];
2674
2675                 if ( !$user = $this->login($username, $password) )
2676                         return $this->error;
2677
2678                 if ( !current_user_can( 'edit_pages' ) )
2679                         return new IXR_Error( 401, __( 'Sorry, you cannot edit pages.' ) );
2680
2681                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2682                 do_action( 'xmlrpc_call', 'wp.getPageList' );
2683
2684                 // Get list of pages ids and titles
2685                 $page_list = $wpdb->get_results("
2686                         SELECT ID page_id,
2687                                 post_title page_title,
2688                                 post_parent page_parent_id,
2689                                 post_date_gmt,
2690                                 post_date,
2691                                 post_status
2692                         FROM {$wpdb->posts}
2693                         WHERE post_type = 'page'
2694                         ORDER BY ID
2695                 ");
2696
2697                 // The date needs to be formatted properly.
2698                 $num_pages = count($page_list);
2699                 for ( $i = 0; $i < $num_pages; $i++ ) {
2700                         $page_list[$i]->dateCreated = $this->_convert_date(  $page_list[$i]->post_date );
2701                         $page_list[$i]->date_created_gmt = $this->_convert_date_gmt( $page_list[$i]->post_date_gmt, $page_list[$i]->post_date );
2702
2703                         unset($page_list[$i]->post_date_gmt);
2704                         unset($page_list[$i]->post_date);
2705                         unset($page_list[$i]->post_status);
2706                 }
2707
2708                 return $page_list;
2709         }
2710
2711         /**
2712          * Retrieve authors list.
2713          *
2714          * @since 2.2.0
2715          *
2716          * @param array $args Method parameters.
2717          * @return array|IXR_Error
2718          */
2719         public function wp_getAuthors($args) {
2720
2721                 $this->escape($args);
2722
2723                 $username       = $args[1];
2724                 $password       = $args[2];
2725
2726                 if ( !$user = $this->login($username, $password) )
2727                         return $this->error;
2728
2729                 if ( !current_user_can('edit_posts') )
2730                         return new IXR_Error( 401, __( 'Sorry, you cannot edit posts on this site.' ) );
2731
2732                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2733                 do_action( 'xmlrpc_call', 'wp.getAuthors' );
2734
2735                 $authors = array();
2736                 foreach ( get_users( array( 'fields' => array('ID','user_login','display_name') ) ) as $user ) {
2737                         $authors[] = array(
2738                                 'user_id'       => $user->ID,
2739                                 'user_login'    => $user->user_login,
2740                                 'display_name'  => $user->display_name
2741                         );
2742                 }
2743
2744                 return $authors;
2745         }
2746
2747         /**
2748          * Get list of all tags
2749          *
2750          * @since 2.7.0
2751          *
2752          * @param array $args Method parameters.
2753          * @return array|IXR_Error
2754          */
2755         public function wp_getTags( $args ) {
2756                 $this->escape( $args );
2757
2758                 $username               = $args[1];
2759                 $password               = $args[2];
2760
2761                 if ( !$user = $this->login($username, $password) )
2762                         return $this->error;
2763
2764                 if ( !current_user_can( 'edit_posts' ) )
2765                         return new IXR_Error( 401, __( 'Sorry, you must be able to edit posts on this site in order to view tags.' ) );
2766
2767                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2768                 do_action( 'xmlrpc_call', 'wp.getKeywords' );
2769
2770                 $tags = array();
2771
2772                 if ( $all_tags = get_tags() ) {
2773                         foreach( (array) $all_tags as $tag ) {
2774                                 $struct = array();
2775                                 $struct['tag_id']                       = $tag->term_id;
2776                                 $struct['name']                         = $tag->name;
2777                                 $struct['count']                        = $tag->count;
2778                                 $struct['slug']                         = $tag->slug;
2779                                 $struct['html_url']                     = esc_html( get_tag_link( $tag->term_id ) );
2780                                 $struct['rss_url']                      = esc_html( get_tag_feed_link( $tag->term_id ) );
2781
2782                                 $tags[] = $struct;
2783                         }
2784                 }
2785
2786                 return $tags;
2787         }
2788
2789         /**
2790          * Create new category.
2791          *
2792          * @since 2.2.0
2793          *
2794          * @param array $args Method parameters.
2795          * @return int|IXR_Error Category ID.
2796          */
2797         public function wp_newCategory($args) {
2798                 $this->escape($args);
2799
2800                 $username                               = $args[1];
2801                 $password                               = $args[2];
2802                 $category                               = $args[3];
2803
2804                 if ( !$user = $this->login($username, $password) )
2805                         return $this->error;
2806
2807                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2808                 do_action( 'xmlrpc_call', 'wp.newCategory' );
2809
2810                 // Make sure the user is allowed to add a category.
2811                 if ( !current_user_can('manage_categories') )
2812                         return new IXR_Error(401, __('Sorry, you do not have the right to add a category.'));
2813
2814                 // If no slug was provided make it empty so that
2815                 // WordPress will generate one.
2816                 if ( empty($category['slug']) )
2817                         $category['slug'] = '';
2818
2819                 // If no parent_id was provided make it empty
2820                 // so that it will be a top level page (no parent).
2821                 if ( !isset($category['parent_id']) )
2822                         $category['parent_id'] = '';
2823
2824                 // If no description was provided make it empty.
2825                 if ( empty($category["description"]) )
2826                         $category["description"] = "";
2827
2828                 $new_category = array(
2829                         'cat_name'                              => $category['name'],
2830                         'category_nicename'             => $category['slug'],
2831                         'category_parent'               => $category['parent_id'],
2832                         'category_description'  => $category['description']
2833                 );
2834
2835                 $cat_id = wp_insert_category($new_category, true);
2836                 if ( is_wp_error( $cat_id ) ) {
2837                         if ( 'term_exists' == $cat_id->get_error_code() )
2838                                 return (int) $cat_id->get_error_data();
2839                         else
2840                                 return new IXR_Error(500, __('Sorry, the new category failed.'));
2841                 } elseif ( ! $cat_id ) {
2842                         return new IXR_Error(500, __('Sorry, the new category failed.'));
2843                 }
2844
2845                 /**
2846                  * Fires after a new category has been successfully created via XML-RPC.
2847                  *
2848                  * @since 3.4.0
2849                  *
2850                  * @param int   $cat_id ID of the new category.
2851                  * @param array $args   An array of new category arguments.
2852                  */
2853                 do_action( 'xmlrpc_call_success_wp_newCategory', $cat_id, $args );
2854
2855                 return $cat_id;
2856         }
2857
2858         /**
2859          * Remove category.
2860          *
2861          * @since 2.5.0
2862          *
2863          * @param array $args Method parameters.
2864          * @return bool|IXR_Error See {@link wp_delete_term()} for return info.
2865          */
2866         public function wp_deleteCategory($args) {
2867                 $this->escape($args);
2868
2869                 $username               = $args[1];
2870                 $password               = $args[2];
2871                 $category_id    = (int) $args[3];
2872
2873                 if ( !$user = $this->login($username, $password) )
2874                         return $this->error;
2875
2876                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2877                 do_action( 'xmlrpc_call', 'wp.deleteCategory' );
2878
2879                 if ( !current_user_can('manage_categories') )
2880                         return new IXR_Error( 401, __( 'Sorry, you do not have the right to delete a category.' ) );
2881
2882                 $status = wp_delete_term( $category_id, 'category' );
2883
2884                 if ( true == $status ) {
2885                         /**
2886                          * Fires after a category has been successfully deleted via XML-RPC.
2887                          *
2888                          * @since 3.4.0
2889                          *
2890                          * @param int   $category_id ID of the deleted category.
2891                          * @param array $args        An array of arguments to delete the category.
2892                          */
2893                         do_action( 'xmlrpc_call_success_wp_deleteCategory', $category_id, $args );
2894                 }
2895
2896                 return $status;
2897         }
2898
2899         /**
2900          * Retrieve category list.
2901          *
2902          * @since 2.2.0
2903          *
2904          * @param array $args Method parameters.
2905          * @return array|IXR_Error
2906          */
2907         public function wp_suggestCategories($args) {
2908                 $this->escape($args);
2909
2910                 $username                               = $args[1];
2911                 $password                               = $args[2];
2912                 $category                               = $args[3];
2913                 $max_results                    = (int) $args[4];
2914
2915                 if ( !$user = $this->login($username, $password) )
2916                         return $this->error;
2917
2918                 if ( !current_user_can( 'edit_posts' ) )
2919                         return new IXR_Error( 401, __( 'Sorry, you must be able to edit posts on this site in order to view categories.' ) );
2920
2921                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2922                 do_action( 'xmlrpc_call', 'wp.suggestCategories' );
2923
2924                 $category_suggestions = array();
2925                 $args = array('get' => 'all', 'number' => $max_results, 'name__like' => $category);
2926                 foreach ( (array) get_categories($args) as $cat ) {
2927                         $category_suggestions[] = array(
2928                                 'category_id'   => $cat->term_id,
2929                                 'category_name' => $cat->name
2930                         );
2931                 }
2932
2933                 return $category_suggestions;
2934         }
2935
2936         /**
2937          * Retrieve comment.
2938          *
2939          * @since 2.7.0
2940          *
2941          * @param array $args Method parameters.
2942          * @return array|IXR_Error
2943          */
2944         public function wp_getComment($args) {
2945                 $this->escape($args);
2946
2947                 $username       = $args[1];
2948                 $password       = $args[2];
2949                 $comment_id     = (int) $args[3];
2950
2951                 if ( !$user = $this->login($username, $password) )
2952                         return $this->error;
2953
2954                 if ( !current_user_can( 'moderate_comments' ) )
2955                         return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );
2956
2957                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2958                 do_action( 'xmlrpc_call', 'wp.getComment' );
2959
2960                 if ( ! $comment = get_comment($comment_id) )
2961                         return new IXR_Error( 404, __( 'Invalid comment ID.' ) );
2962
2963                 return $this->_prepare_comment( $comment );
2964         }
2965
2966         /**
2967          * Retrieve comments.
2968          *
2969          * Besides the common blog_id (unused), username, and password arguments, it takes a filter
2970          * array as last argument.
2971          *
2972          * Accepted 'filter' keys are 'status', 'post_id', 'offset', and 'number'.
2973          *
2974          * The defaults are as follows:
2975          * - 'status' - Default is ''. Filter by status (e.g., 'approve', 'hold')
2976          * - 'post_id' - Default is ''. The post where the comment is posted. Empty string shows all comments.
2977          * - 'number' - Default is 10. Total number of media items to retrieve.
2978          * - 'offset' - Default is 0. See {@link WP_Query::query()} for more.
2979          *
2980          * @since 2.7.0
2981          *
2982          * @param array $args Method parameters.
2983          * @return array|IXR_Error Contains a collection of comments. See {@link wp_xmlrpc_server::wp_getComment()} for a description of each item contents
2984          */
2985         public function wp_getComments($args) {
2986                 $this->escape($args);
2987
2988                 $username       = $args[1];
2989                 $password       = $args[2];
2990                 $struct         = isset( $args[3] ) ? $args[3] : array();
2991
2992                 if ( !$user = $this->login($username, $password) )
2993                         return $this->error;
2994
2995                 if ( !current_user_can( 'moderate_comments' ) )
2996                         return new IXR_Error( 401, __( 'Sorry, you cannot edit comments.' ) );
2997
2998                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2999                 do_action( 'xmlrpc_call', 'wp.getComments' );
3000
3001                 if ( isset($struct['status']) )
3002                         $status = $struct['status'];
3003                 else
3004                         $status = '';
3005
3006                 $post_id = '';
3007                 if ( isset($struct['post_id']) )
3008                         $post_id = absint($struct['post_id']);
3009
3010                 $offset = 0;
3011                 if ( isset($struct['offset']) )
3012                         $offset = absint($struct['offset']);
3013
3014                 $number = 10;
3015                 if ( isset($struct['number']) )
3016                         $number = absint($struct['number']);
3017
3018                 $comments = get_comments( array('status' => $status, 'post_id' => $post_id, 'offset' => $offset, 'number' => $number ) );
3019
3020                 $comments_struct = array();
3021
3022                 foreach ( $comments as $comment ) {
3023                         $comments_struct[] = $this->_prepare_comment( $comment );
3024                 }
3025
3026                 return $comments_struct;
3027         }
3028
3029         /**
3030          * Delete a comment.
3031          *
3032          * By default, the comment will be moved to the trash instead of deleted.
3033          * See {@link wp_delete_comment()} for more information on
3034          * this behavior.
3035          *
3036          * @since 2.7.0
3037          *
3038          * @param array $args Method parameters. Contains:
3039          *  - blog_id (unused)
3040          *  - username
3041          *  - password
3042          *  - comment_id
3043          * @return bool|IXR_Error {@link wp_delete_comment()}
3044          */
3045         public function wp_deleteComment($args) {
3046                 $this->escape($args);
3047
3048                 $username       = $args[1];
3049                 $password       = $args[2];
3050                 $comment_ID     = (int) $args[3];
3051
3052                 if ( !$user = $this->login($username, $password) )
3053                         return $this->error;
3054
3055                 if ( !current_user_can( 'moderate_comments' ) )
3056                         return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );
3057
3058                 if ( ! get_comment($comment_ID) )
3059                         return new IXR_Error( 404, __( 'Invalid comment ID.' ) );
3060
3061                 if ( !current_user_can( 'edit_comment', $comment_ID ) )
3062                         return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );
3063
3064                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3065                 do_action( 'xmlrpc_call', 'wp.deleteComment' );
3066
3067                 $status = wp_delete_comment( $comment_ID );
3068
3069                 if ( true == $status ) {
3070                         /**
3071                          * Fires after a comment has been successfully deleted via XML-RPC.
3072                          *
3073                          * @since 3.4.0
3074                          *
3075                          * @param int   $comment_ID ID of the deleted comment.
3076                          * @param array $args       An array of arguments to delete the comment.
3077                          */
3078                         do_action( 'xmlrpc_call_success_wp_deleteComment', $comment_ID, $args );
3079                 }
3080
3081                 return $status;
3082         }
3083
3084         /**
3085          * Edit comment.
3086          *
3087          * Besides the common blog_id (unused), username, and password arguments, it takes a
3088          * comment_id integer and a content_struct array as last argument.
3089          *
3090          * The allowed keys in the content_struct array are:
3091          *  - 'author'
3092          *  - 'author_url'
3093          *  - 'author_email'
3094          *  - 'content'
3095          *  - 'date_created_gmt'
3096          *  - 'status'. Common statuses are 'approve', 'hold', 'spam'. See {@link get_comment_statuses()} for more details
3097          *
3098          * @since 2.7.0
3099          *
3100          * @param array $args Contains:
3101          *  - blog_id (unused)
3102          *  - username
3103          *  - password
3104          *  - comment_id
3105          *  - content_struct
3106          * @return bool|IXR_Error True, on success.
3107          */
3108         public function wp_editComment($args) {
3109                 $this->escape($args);
3110
3111                 $username       = $args[1];
3112                 $password       = $args[2];
3113                 $comment_ID     = (int) $args[3];
3114                 $content_struct = $args[4];
3115
3116                 if ( !$user = $this->login($username, $password) )
3117                         return $this->error;
3118
3119                 if ( !current_user_can( 'moderate_comments' ) )
3120                         return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );
3121
3122                 if ( ! get_comment($comment_ID) )
3123                         return new IXR_Error( 404, __( 'Invalid comment ID.' ) );
3124
3125                 if ( !current_user_can( 'edit_comment', $comment_ID ) )
3126                         return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );
3127
3128                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3129                 do_action( 'xmlrpc_call', 'wp.editComment' );
3130
3131                 if ( isset($content_struct['status']) ) {
3132                         $statuses = get_comment_statuses();