WordPress 4.2.5
[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         private function _validate_boolean( $var ) {
1154                 if ( is_bool( $var ) ) {
1155                         return $var;
1156                 }
1157
1158                 if ( is_string( $var ) && 'false' === strtolower( $var ) ) {
1159                         return false;
1160                 }
1161
1162                 return (bool) $var;
1163         }
1164
1165         /**
1166          * Encapsulate the logic for sticking a post
1167          * and determining if the user has permission to do so
1168          *
1169          * @since 4.3.0
1170          * @access private
1171          *
1172          * @param array $post_data
1173          * @param bool  $update
1174          * @return void|IXR_Error
1175          */
1176         private function _toggle_sticky( $post_data, $update = false ) {
1177                 $post_type = get_post_type_object( $post_data['post_type'] );
1178
1179                 // Private and password-protected posts cannot be stickied.
1180                 if ( 'private' === $post_data['post_status'] || ! empty( $post_data['post_password'] ) ) {
1181                         // Error if the client tried to stick the post, otherwise, silently unstick.
1182                         if ( ! empty( $post_data['sticky'] ) ) {
1183                                 return new IXR_Error( 401, __( 'Sorry, you cannot stick a private post.' ) );
1184                         }
1185
1186                         if ( $update ) {
1187                                 unstick_post( $post_data['ID'] );
1188                         }
1189                 } elseif ( isset( $post_data['sticky'] ) )  {
1190                         if ( ! current_user_can( $post_type->cap->edit_others_posts ) ) {
1191                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to stick this post.' ) );
1192                         }
1193
1194                         $sticky = $this->_validate_boolean( $post_data['sticky'] );
1195                         if ( $sticky ) {
1196                                 stick_post( $post_data['ID'] );
1197                         } else {
1198                                 unstick_post( $post_data['ID'] );
1199                         }
1200                 }
1201         }
1202
1203         /**
1204          * Helper method for wp_newPost and wp_editPost, containing shared logic.
1205          *
1206          * @since 3.4.0
1207          * @uses wp_insert_post()
1208          *
1209          * @param WP_User $user The post author if post_author isn't set in $content_struct.
1210          * @param array|IXR_Error $content_struct Post data to insert.
1211          */
1212         protected function _insert_post( $user, $content_struct ) {
1213                 $defaults = array( 'post_status' => 'draft', 'post_type' => 'post', 'post_author' => 0,
1214                         'post_password' => '', 'post_excerpt' => '', 'post_content' => '', 'post_title' => '' );
1215
1216                 $post_data = wp_parse_args( $content_struct, $defaults );
1217
1218                 $post_type = get_post_type_object( $post_data['post_type'] );
1219                 if ( ! $post_type )
1220                         return new IXR_Error( 403, __( 'Invalid post type' ) );
1221
1222                 $update = ! empty( $post_data['ID'] );
1223
1224                 if ( $update ) {
1225                         if ( ! get_post( $post_data['ID'] ) )
1226                                 return new IXR_Error( 401, __( 'Invalid post ID.' ) );
1227                         if ( ! current_user_can( 'edit_post', $post_data['ID'] ) )
1228                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit this post.' ) );
1229                         if ( $post_data['post_type'] != get_post_type( $post_data['ID'] ) )
1230                                 return new IXR_Error( 401, __( 'The post type may not be changed.' ) );
1231                 } else {
1232                         if ( ! current_user_can( $post_type->cap->create_posts ) || ! current_user_can( $post_type->cap->edit_posts ) )
1233                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to post on this site.' ) );
1234                 }
1235
1236                 switch ( $post_data['post_status'] ) {
1237                         case 'draft':
1238                         case 'pending':
1239                                 break;
1240                         case 'private':
1241                                 if ( ! current_user_can( $post_type->cap->publish_posts ) )
1242                                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to create private posts in this post type' ) );
1243                                 break;
1244                         case 'publish':
1245                         case 'future':
1246                                 if ( ! current_user_can( $post_type->cap->publish_posts ) )
1247                                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to publish posts in this post type' ) );
1248                                 break;
1249                         default:
1250                                 if ( ! get_post_status_object( $post_data['post_status'] ) )
1251                                         $post_data['post_status'] = 'draft';
1252                         break;
1253                 }
1254
1255                 if ( ! empty( $post_data['post_password'] ) && ! current_user_can( $post_type->cap->publish_posts ) )
1256                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to create password protected posts in this post type' ) );
1257
1258                 $post_data['post_author'] = absint( $post_data['post_author'] );
1259                 if ( ! empty( $post_data['post_author'] ) && $post_data['post_author'] != $user->ID ) {
1260                         if ( ! current_user_can( $post_type->cap->edit_others_posts ) )
1261                                 return new IXR_Error( 401, __( 'You are not allowed to create posts as this user.' ) );
1262
1263                         $author = get_userdata( $post_data['post_author'] );
1264
1265                         if ( ! $author )
1266                                 return new IXR_Error( 404, __( 'Invalid author ID.' ) );
1267                 } else {
1268                         $post_data['post_author'] = $user->ID;
1269                 }
1270
1271                 if ( isset( $post_data['comment_status'] ) && $post_data['comment_status'] != 'open' && $post_data['comment_status'] != 'closed' )
1272                         unset( $post_data['comment_status'] );
1273
1274                 if ( isset( $post_data['ping_status'] ) && $post_data['ping_status'] != 'open' && $post_data['ping_status'] != 'closed' )
1275                         unset( $post_data['ping_status'] );
1276
1277                 // Do some timestamp voodoo
1278                 if ( ! empty( $post_data['post_date_gmt'] ) ) {
1279                         // We know this is supposed to be GMT, so we're going to slap that Z on there by force
1280                         $dateCreated = rtrim( $post_data['post_date_gmt']->getIso(), 'Z' ) . 'Z';
1281                 } elseif ( ! empty( $post_data['post_date'] ) ) {
1282                         $dateCreated = $post_data['post_date']->getIso();
1283                 }
1284
1285                 if ( ! empty( $dateCreated ) ) {
1286                         $post_data['post_date'] = get_date_from_gmt( iso8601_to_datetime( $dateCreated ) );
1287                         $post_data['post_date_gmt'] = iso8601_to_datetime( $dateCreated, 'GMT' );
1288                 }
1289
1290                 if ( ! isset( $post_data['ID'] ) )
1291                         $post_data['ID'] = get_default_post_to_edit( $post_data['post_type'], true )->ID;
1292                 $post_ID = $post_data['ID'];
1293
1294                 if ( $post_data['post_type'] == 'post' ) {
1295                         $error = $this->_toggle_sticky( $post_data, $update );
1296                         if ( $error ) {
1297                                 return $error;
1298                         }
1299                 }
1300
1301                 if ( isset( $post_data['post_thumbnail'] ) ) {
1302                         // empty value deletes, non-empty value adds/updates
1303                         if ( ! $post_data['post_thumbnail'] )
1304                                 delete_post_thumbnail( $post_ID );
1305                         elseif ( ! get_post( absint( $post_data['post_thumbnail'] ) ) )
1306                                 return new IXR_Error( 404, __( 'Invalid attachment ID.' ) );
1307                         set_post_thumbnail( $post_ID, $post_data['post_thumbnail'] );
1308                         unset( $content_struct['post_thumbnail'] );
1309                 }
1310
1311                 if ( isset( $post_data['custom_fields'] ) )
1312                         $this->set_custom_fields( $post_ID, $post_data['custom_fields'] );
1313
1314                 if ( isset( $post_data['terms'] ) || isset( $post_data['terms_names'] ) ) {
1315                         $post_type_taxonomies = get_object_taxonomies( $post_data['post_type'], 'objects' );
1316
1317                         // accumulate term IDs from terms and terms_names
1318                         $terms = array();
1319
1320                         // first validate the terms specified by ID
1321                         if ( isset( $post_data['terms'] ) && is_array( $post_data['terms'] ) ) {
1322                                 $taxonomies = array_keys( $post_data['terms'] );
1323
1324                                 // validating term ids
1325                                 foreach ( $taxonomies as $taxonomy ) {
1326                                         if ( ! array_key_exists( $taxonomy , $post_type_taxonomies ) )
1327                                                 return new IXR_Error( 401, __( 'Sorry, one of the given taxonomies is not supported by the post type.' ) );
1328
1329                                         if ( ! current_user_can( $post_type_taxonomies[$taxonomy]->cap->assign_terms ) )
1330                                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to assign a term to one of the given taxonomies.' ) );
1331
1332                                         $term_ids = $post_data['terms'][$taxonomy];
1333                                         $terms[ $taxonomy ] = array();
1334                                         foreach ( $term_ids as $term_id ) {
1335                                                 $term = get_term_by( 'id', $term_id, $taxonomy );
1336
1337                                                 if ( ! $term )
1338                                                         return new IXR_Error( 403, __( 'Invalid term ID' ) );
1339
1340                                                 $terms[$taxonomy][] = (int) $term_id;
1341                                         }
1342                                 }
1343                         }
1344
1345                         // now validate terms specified by name
1346                         if ( isset( $post_data['terms_names'] ) && is_array( $post_data['terms_names'] ) ) {
1347                                 $taxonomies = array_keys( $post_data['terms_names'] );
1348
1349                                 foreach ( $taxonomies as $taxonomy ) {
1350                                         if ( ! array_key_exists( $taxonomy , $post_type_taxonomies ) )
1351                                                 return new IXR_Error( 401, __( 'Sorry, one of the given taxonomies is not supported by the post type.' ) );
1352
1353                                         if ( ! current_user_can( $post_type_taxonomies[$taxonomy]->cap->assign_terms ) )
1354                                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to assign a term to one of the given taxonomies.' ) );
1355
1356                                         // for hierarchical taxonomies, we can't assign a term when multiple terms in the hierarchy share the same name
1357                                         $ambiguous_terms = array();
1358                                         if ( is_taxonomy_hierarchical( $taxonomy ) ) {
1359                                                 $tax_term_names = get_terms( $taxonomy, array( 'fields' => 'names', 'hide_empty' => false ) );
1360
1361                                                 // count the number of terms with the same name
1362                                                 $tax_term_names_count = array_count_values( $tax_term_names );
1363
1364                                                 // filter out non-ambiguous term names
1365                                                 $ambiguous_tax_term_counts = array_filter( $tax_term_names_count, array( $this, '_is_greater_than_one') );
1366
1367                                                 $ambiguous_terms = array_keys( $ambiguous_tax_term_counts );
1368                                         }
1369
1370                                         $term_names = $post_data['terms_names'][$taxonomy];
1371                                         foreach ( $term_names as $term_name ) {
1372                                                 if ( in_array( $term_name, $ambiguous_terms ) )
1373                                                         return new IXR_Error( 401, __( 'Ambiguous term name used in a hierarchical taxonomy. Please use term ID instead.' ) );
1374
1375                                                 $term = get_term_by( 'name', $term_name, $taxonomy );
1376
1377                                                 if ( ! $term ) {
1378                                                         // term doesn't exist, so check that the user is allowed to create new terms
1379                                                         if ( ! current_user_can( $post_type_taxonomies[$taxonomy]->cap->edit_terms ) )
1380                                                                 return new IXR_Error( 401, __( 'Sorry, you are not allowed to add a term to one of the given taxonomies.' ) );
1381
1382                                                         // create the new term
1383                                                         $term_info = wp_insert_term( $term_name, $taxonomy );
1384                                                         if ( is_wp_error( $term_info ) )
1385                                                                 return new IXR_Error( 500, $term_info->get_error_message() );
1386
1387                                                         $terms[$taxonomy][] = (int) $term_info['term_id'];
1388                                                 } else {
1389                                                         $terms[$taxonomy][] = (int) $term->term_id;
1390                                                 }
1391                                         }
1392                                 }
1393                         }
1394
1395                         $post_data['tax_input'] = $terms;
1396                         unset( $post_data['terms'], $post_data['terms_names'] );
1397                 } else {
1398                         // do not allow direct submission of 'tax_input', clients must use 'terms' and/or 'terms_names'
1399                         unset( $post_data['tax_input'], $post_data['post_category'], $post_data['tags_input'] );
1400                 }
1401
1402                 if ( isset( $post_data['post_format'] ) ) {
1403                         $format = set_post_format( $post_ID, $post_data['post_format'] );
1404
1405                         if ( is_wp_error( $format ) )
1406                                 return new IXR_Error( 500, $format->get_error_message() );
1407
1408                         unset( $post_data['post_format'] );
1409                 }
1410
1411                 // Handle enclosures
1412                 $enclosure = isset( $post_data['enclosure'] ) ? $post_data['enclosure'] : null;
1413                 $this->add_enclosure_if_new( $post_ID, $enclosure );
1414
1415                 $this->attach_uploads( $post_ID, $post_data['post_content'] );
1416
1417                 /**
1418                  * Filter post data array to be inserted via XML-RPC.
1419                  *
1420                  * @since 3.4.0
1421                  *
1422                  * @param array $post_data      Parsed array of post data.
1423                  * @param array $content_struct Post data array.
1424                  */
1425                 $post_data = apply_filters( 'xmlrpc_wp_insert_post_data', $post_data, $content_struct );
1426
1427                 $post_ID = $update ? wp_update_post( $post_data, true ) : wp_insert_post( $post_data, true );
1428                 if ( is_wp_error( $post_ID ) )
1429                         return new IXR_Error( 500, $post_ID->get_error_message() );
1430
1431                 if ( ! $post_ID )
1432                         return new IXR_Error( 401, __( 'Sorry, your entry could not be posted. Something wrong happened.' ) );
1433
1434                 return strval( $post_ID );
1435         }
1436
1437         /**
1438          * Edit a post for any registered post type.
1439          *
1440          * The $content_struct parameter only needs to contain fields that
1441          * should be changed. All other fields will retain their existing values.
1442          *
1443          * @since 3.4.0
1444          *
1445          * @param array $args Method parameters. Contains:
1446          *  - int     $blog_id (unused)
1447          *  - string  $username
1448          *  - string  $password
1449          *  - int     $post_id
1450          *  - array   $content_struct
1451          * @return bool|IXR_Error true on success
1452          */
1453         public function wp_editPost( $args ) {
1454                 if ( ! $this->minimum_args( $args, 5 ) )
1455                         return $this->error;
1456
1457                 $this->escape( $args );
1458
1459                 $username       = $args[1];
1460                 $password       = $args[2];
1461                 $post_id        = (int) $args[3];
1462                 $content_struct = $args[4];
1463
1464                 if ( ! $user = $this->login( $username, $password ) )
1465                         return $this->error;
1466
1467                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1468                 do_action( 'xmlrpc_call', 'wp.editPost' );
1469
1470                 $post = get_post( $post_id, ARRAY_A );
1471
1472                 if ( empty( $post['ID'] ) )
1473                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
1474
1475                 if ( isset( $content_struct['if_not_modified_since'] ) ) {
1476                         // If the post has been modified since the date provided, return an error.
1477                         if ( mysql2date( 'U', $post['post_modified_gmt'] ) > $content_struct['if_not_modified_since']->getTimestamp() ) {
1478                                 return new IXR_Error( 409, __( 'There is a revision of this post that is more recent.' ) );
1479                         }
1480                 }
1481
1482                 // convert the date field back to IXR form
1483                 $post['post_date'] = $this->_convert_date( $post['post_date'] );
1484
1485                 // ignore the existing GMT date if it is empty or a non-GMT date was supplied in $content_struct,
1486                 // since _insert_post will ignore the non-GMT date if the GMT date is set
1487                 if ( $post['post_date_gmt'] == '0000-00-00 00:00:00' || isset( $content_struct['post_date'] ) )
1488                         unset( $post['post_date_gmt'] );
1489                 else
1490                         $post['post_date_gmt'] = $this->_convert_date( $post['post_date_gmt'] );
1491
1492                 $this->escape( $post );
1493                 $merged_content_struct = array_merge( $post, $content_struct );
1494
1495                 $retval = $this->_insert_post( $user, $merged_content_struct );
1496                 if ( $retval instanceof IXR_Error )
1497                         return $retval;
1498
1499                 return true;
1500         }
1501
1502         /**
1503          * Delete a post for any registered post type.
1504          *
1505          * @since 3.4.0
1506          *
1507          * @uses wp_delete_post()
1508          * @param array $args Method parameters. Contains:
1509          *  - int     $blog_id (unused)
1510          *  - string  $username
1511          *  - string  $password
1512          *  - int     $post_id
1513          * @return bool|IXR_Error true on success
1514          */
1515         public function wp_deletePost( $args ) {
1516                 if ( ! $this->minimum_args( $args, 4 ) )
1517                         return $this->error;
1518
1519                 $this->escape( $args );
1520
1521                 $username   = $args[1];
1522                 $password   = $args[2];
1523                 $post_id    = (int) $args[3];
1524
1525                 if ( ! $user = $this->login( $username, $password ) )
1526                         return $this->error;
1527
1528                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1529                 do_action( 'xmlrpc_call', 'wp.deletePost' );
1530
1531                 $post = get_post( $post_id, ARRAY_A );
1532                 if ( empty( $post['ID'] ) )
1533                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
1534
1535                 if ( ! current_user_can( 'delete_post', $post_id ) )
1536                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to delete this post.' ) );
1537
1538                 $result = wp_delete_post( $post_id );
1539
1540                 if ( ! $result )
1541                         return new IXR_Error( 500, __( 'The post cannot be deleted.' ) );
1542
1543                 return true;
1544         }
1545
1546         /**
1547          * Retrieve a post.
1548          *
1549          * @since 3.4.0
1550          *
1551          * The optional $fields parameter specifies what fields will be included
1552          * in the response array. This should be a list of field names. 'post_id' will
1553          * always be included in the response regardless of the value of $fields.
1554          *
1555          * Instead of, or in addition to, individual field names, conceptual group
1556          * names can be used to specify multiple fields. The available conceptual
1557          * groups are 'post' (all basic fields), 'taxonomies', 'custom_fields',
1558          * and 'enclosure'.
1559          *
1560          * @uses get_post()
1561          * @param array $args Method parameters. Contains:
1562          *  - int     $blog_id (unused)
1563          *  - string  $username
1564          *  - string  $password
1565          *  - int     $post_id
1566          *  - array   $fields optional
1567          * @return array|IXR_Error Array contains (based on $fields parameter):
1568          *  - 'post_id'
1569          *  - 'post_title'
1570          *  - 'post_date'
1571          *  - 'post_date_gmt'
1572          *  - 'post_modified'
1573          *  - 'post_modified_gmt'
1574          *  - 'post_status'
1575          *  - 'post_type'
1576          *  - 'post_name'
1577          *  - 'post_author'
1578          *  - 'post_password'
1579          *  - 'post_excerpt'
1580          *  - 'post_content'
1581          *  - 'link'
1582          *  - 'comment_status'
1583          *  - 'ping_status'
1584          *  - 'sticky'
1585          *  - 'custom_fields'
1586          *  - 'terms'
1587          *  - 'categories'
1588          *  - 'tags'
1589          *  - 'enclosure'
1590          */
1591         public function wp_getPost( $args ) {
1592                 if ( ! $this->minimum_args( $args, 4 ) )
1593                         return $this->error;
1594
1595                 $this->escape( $args );
1596
1597                 $username           = $args[1];
1598                 $password           = $args[2];
1599                 $post_id            = (int) $args[3];
1600
1601                 if ( isset( $args[4] ) ) {
1602                         $fields = $args[4];
1603                 } else {
1604                         /**
1605                          * Filter the list of post query fields used by the given XML-RPC method.
1606                          *
1607                          * @since 3.4.0
1608                          *
1609                          * @param array $fields  Array of post fields.
1610                          * @param string $method Method name.
1611                          */
1612                         $fields = apply_filters( 'xmlrpc_default_post_fields', array( 'post', 'terms', 'custom_fields' ), 'wp.getPost' );
1613                 }
1614
1615                 if ( ! $user = $this->login( $username, $password ) )
1616                         return $this->error;
1617
1618                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1619                 do_action( 'xmlrpc_call', 'wp.getPost' );
1620
1621                 $post = get_post( $post_id, ARRAY_A );
1622
1623                 if ( empty( $post['ID'] ) )
1624                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
1625
1626                 if ( ! current_user_can( 'edit_post', $post_id ) )
1627                         return new IXR_Error( 401, __( 'Sorry, you cannot edit this post.' ) );
1628
1629                 return $this->_prepare_post( $post, $fields );
1630         }
1631
1632         /**
1633          * Retrieve posts.
1634          *
1635          * @since 3.4.0
1636          *
1637          * The optional $filter parameter modifies the query used to retrieve posts.
1638          * Accepted keys are 'post_type', 'post_status', 'number', 'offset',
1639          * 'orderby', and 'order'.
1640          *
1641          * The optional $fields parameter specifies what fields will be included
1642          * in the response array.
1643          *
1644          * @uses wp_get_recent_posts()
1645          * @see wp_getPost() for more on $fields
1646          * @see get_posts() for more on $filter values
1647          *
1648          * @param array $args Method parameters. Contains:
1649          *  - int     $blog_id (unused)
1650          *  - string  $username
1651          *  - string  $password
1652          *  - array   $filter optional
1653          *  - array   $fields optional
1654          * @return array|IXR_Error Array contains a collection of posts.
1655          */
1656         public function wp_getPosts( $args ) {
1657                 if ( ! $this->minimum_args( $args, 3 ) )
1658                         return $this->error;
1659
1660                 $this->escape( $args );
1661
1662                 $username   = $args[1];
1663                 $password   = $args[2];
1664                 $filter     = isset( $args[3] ) ? $args[3] : array();
1665
1666                 if ( isset( $args[4] ) ) {
1667                         $fields = $args[4];
1668                 } else {
1669                         /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1670                         $fields = apply_filters( 'xmlrpc_default_post_fields', array( 'post', 'terms', 'custom_fields' ), 'wp.getPosts' );
1671                 }
1672
1673                 if ( ! $user = $this->login( $username, $password ) )
1674                         return $this->error;
1675
1676                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1677                 do_action( 'xmlrpc_call', 'wp.getPosts' );
1678
1679                 $query = array();
1680
1681                 if ( isset( $filter['post_type'] ) ) {
1682                         $post_type = get_post_type_object( $filter['post_type'] );
1683                         if ( ! ( (bool) $post_type ) )
1684                                 return new IXR_Error( 403, __( 'The post type specified is not valid' ) );
1685                 } else {
1686                         $post_type = get_post_type_object( 'post' );
1687                 }
1688
1689                 if ( ! current_user_can( $post_type->cap->edit_posts ) )
1690                         return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit posts in this post type' ));
1691
1692                 $query['post_type'] = $post_type->name;
1693
1694                 if ( isset( $filter['post_status'] ) )
1695                         $query['post_status'] = $filter['post_status'];
1696
1697                 if ( isset( $filter['number'] ) )
1698                         $query['numberposts'] = absint( $filter['number'] );
1699
1700                 if ( isset( $filter['offset'] ) )
1701                         $query['offset'] = absint( $filter['offset'] );
1702
1703                 if ( isset( $filter['orderby'] ) ) {
1704                         $query['orderby'] = $filter['orderby'];
1705
1706                         if ( isset( $filter['order'] ) )
1707                                 $query['order'] = $filter['order'];
1708                 }
1709
1710                 if ( isset( $filter['s'] ) ) {
1711                         $query['s'] = $filter['s'];
1712                 }
1713
1714                 $posts_list = wp_get_recent_posts( $query );
1715
1716                 if ( ! $posts_list )
1717                         return array();
1718
1719                 // holds all the posts data
1720                 $struct = array();
1721
1722                 foreach ( $posts_list as $post ) {
1723                         if ( ! current_user_can( 'edit_post', $post['ID'] ) )
1724                                 continue;
1725
1726                         $struct[] = $this->_prepare_post( $post, $fields );
1727                 }
1728
1729                 return $struct;
1730         }
1731
1732         /**
1733          * Create a new term.
1734          *
1735          * @since 3.4.0
1736          *
1737          * @uses wp_insert_term()
1738          * @param array $args Method parameters. Contains:
1739          *  - int     $blog_id (unused)
1740          *  - string  $username
1741          *  - string  $password
1742          *  - array   $content_struct
1743          *      The $content_struct must contain:
1744          *      - 'name'
1745          *      - 'taxonomy'
1746          *      Also, it can optionally contain:
1747          *      - 'parent'
1748          *      - 'description'
1749          *      - 'slug'
1750          * @return string|IXR_Error term_id
1751          */
1752         public function wp_newTerm( $args ) {
1753                 if ( ! $this->minimum_args( $args, 4 ) )
1754                         return $this->error;
1755
1756                 $this->escape( $args );
1757
1758                 $username           = $args[1];
1759                 $password           = $args[2];
1760                 $content_struct     = $args[3];
1761
1762                 if ( ! $user = $this->login( $username, $password ) )
1763                         return $this->error;
1764
1765                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1766                 do_action( 'xmlrpc_call', 'wp.newTerm' );
1767
1768                 if ( ! taxonomy_exists( $content_struct['taxonomy'] ) )
1769                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
1770
1771                 $taxonomy = get_taxonomy( $content_struct['taxonomy'] );
1772
1773                 if ( ! current_user_can( $taxonomy->cap->manage_terms ) )
1774                         return new IXR_Error( 401, __( 'You are not allowed to create terms in this taxonomy.' ) );
1775
1776                 $taxonomy = (array) $taxonomy;
1777
1778                 // hold the data of the term
1779                 $term_data = array();
1780
1781                 $term_data['name'] = trim( $content_struct['name'] );
1782                 if ( empty( $term_data['name'] ) )
1783                         return new IXR_Error( 403, __( 'The term name cannot be empty.' ) );
1784
1785                 if ( isset( $content_struct['parent'] ) ) {
1786                         if ( ! $taxonomy['hierarchical'] )
1787                                 return new IXR_Error( 403, __( 'This taxonomy is not hierarchical.' ) );
1788
1789                         $parent_term_id = (int) $content_struct['parent'];
1790                         $parent_term = get_term( $parent_term_id , $taxonomy['name'] );
1791
1792                         if ( is_wp_error( $parent_term ) )
1793                                 return new IXR_Error( 500, $parent_term->get_error_message() );
1794
1795                         if ( ! $parent_term )
1796                                 return new IXR_Error( 403, __( 'Parent term does not exist.' ) );
1797
1798                         $term_data['parent'] = $content_struct['parent'];
1799                 }
1800
1801                 if ( isset( $content_struct['description'] ) )
1802                         $term_data['description'] = $content_struct['description'];
1803
1804                 if ( isset( $content_struct['slug'] ) )
1805                         $term_data['slug'] = $content_struct['slug'];
1806
1807                 $term = wp_insert_term( $term_data['name'] , $taxonomy['name'] , $term_data );
1808
1809                 if ( is_wp_error( $term ) )
1810                         return new IXR_Error( 500, $term->get_error_message() );
1811
1812                 if ( ! $term )
1813                         return new IXR_Error( 500, __( 'Sorry, your term could not be created. Something wrong happened.' ) );
1814
1815                 return strval( $term['term_id'] );
1816         }
1817
1818         /**
1819          * Edit a term.
1820          *
1821          * @since 3.4.0
1822          *
1823          * @uses wp_update_term()
1824          * @param array $args Method parameters. Contains:
1825          *  - int     $blog_id (unused)
1826          *  - string  $username
1827          *  - string  $password
1828          *  - string  $term_id
1829          *  - array   $content_struct
1830          *      The $content_struct must contain:
1831          *      - 'taxonomy'
1832          *      Also, it can optionally contain:
1833          *      - 'name'
1834          *      - 'parent'
1835          *      - 'description'
1836          *      - 'slug'
1837          * @return bool|IXR_Error True, on success.
1838          */
1839         public function wp_editTerm( $args ) {
1840                 if ( ! $this->minimum_args( $args, 5 ) )
1841                         return $this->error;
1842
1843                 $this->escape( $args );
1844
1845                 $username           = $args[1];
1846                 $password           = $args[2];
1847                 $term_id            = (int) $args[3];
1848                 $content_struct     = $args[4];
1849
1850                 if ( ! $user = $this->login( $username, $password ) )
1851                         return $this->error;
1852
1853                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1854                 do_action( 'xmlrpc_call', 'wp.editTerm' );
1855
1856                 if ( ! taxonomy_exists( $content_struct['taxonomy'] ) )
1857                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
1858
1859                 $taxonomy = get_taxonomy( $content_struct['taxonomy'] );
1860
1861                 if ( ! current_user_can( $taxonomy->cap->edit_terms ) )
1862                         return new IXR_Error( 401, __( 'You are not allowed to edit terms in this taxonomy.' ) );
1863
1864                 $taxonomy = (array) $taxonomy;
1865
1866                 // hold the data of the term
1867                 $term_data = array();
1868
1869                 $term = get_term( $term_id , $content_struct['taxonomy'] );
1870
1871                 if ( is_wp_error( $term ) )
1872                         return new IXR_Error( 500, $term->get_error_message() );
1873
1874                 if ( ! $term )
1875                         return new IXR_Error( 404, __( 'Invalid term ID' ) );
1876
1877                 if ( isset( $content_struct['name'] ) ) {
1878                         $term_data['name'] = trim( $content_struct['name'] );
1879
1880                         if ( empty( $term_data['name'] ) )
1881                                 return new IXR_Error( 403, __( 'The term name cannot be empty.' ) );
1882                 }
1883
1884                 if ( isset( $content_struct['parent'] ) ) {
1885                         if ( ! $taxonomy['hierarchical'] )
1886                                 return new IXR_Error( 403, __( "This taxonomy is not hierarchical so you can't set a parent." ) );
1887
1888                         $parent_term_id = (int) $content_struct['parent'];
1889                         $parent_term = get_term( $parent_term_id , $taxonomy['name'] );
1890
1891                         if ( is_wp_error( $parent_term ) )
1892                                 return new IXR_Error( 500, $parent_term->get_error_message() );
1893
1894                         if ( ! $parent_term )
1895                                 return new IXR_Error( 403, __( 'Parent term does not exist.' ) );
1896
1897                         $term_data['parent'] = $content_struct['parent'];
1898                 }
1899
1900                 if ( isset( $content_struct['description'] ) )
1901                         $term_data['description'] = $content_struct['description'];
1902
1903                 if ( isset( $content_struct['slug'] ) )
1904                         $term_data['slug'] = $content_struct['slug'];
1905
1906                 $term = wp_update_term( $term_id , $taxonomy['name'] , $term_data );
1907
1908                 if ( is_wp_error( $term ) )
1909                         return new IXR_Error( 500, $term->get_error_message() );
1910
1911                 if ( ! $term )
1912                         return new IXR_Error( 500, __( 'Sorry, editing the term failed.' ) );
1913
1914                 return true;
1915         }
1916
1917         /**
1918          * Delete a term.
1919          *
1920          * @since 3.4.0
1921          *
1922          * @uses wp_delete_term()
1923          * @param array $args Method parameters. Contains:
1924          *  - int     $blog_id (unused)
1925          *  - string  $username
1926          *  - string  $password
1927          *  - string  $taxnomy_name
1928          *  - string     $term_id
1929          * @return boolean|IXR_Error If it suceeded true else a reason why not
1930          */
1931         public function wp_deleteTerm( $args ) {
1932                 if ( ! $this->minimum_args( $args, 5 ) )
1933                         return $this->error;
1934
1935                 $this->escape( $args );
1936
1937                 $username           = $args[1];
1938                 $password           = $args[2];
1939                 $taxonomy           = $args[3];
1940                 $term_id            = (int) $args[4];
1941
1942                 if ( ! $user = $this->login( $username, $password ) )
1943                         return $this->error;
1944
1945                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
1946                 do_action( 'xmlrpc_call', 'wp.deleteTerm' );
1947
1948                 if ( ! taxonomy_exists( $taxonomy ) )
1949                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
1950
1951                 $taxonomy = get_taxonomy( $taxonomy );
1952
1953                 if ( ! current_user_can( $taxonomy->cap->delete_terms ) )
1954                         return new IXR_Error( 401, __( 'You are not allowed to delete terms in this taxonomy.' ) );
1955
1956                 $term = get_term( $term_id, $taxonomy->name );
1957
1958                 if ( is_wp_error( $term ) )
1959                         return new IXR_Error( 500, $term->get_error_message() );
1960
1961                 if ( ! $term )
1962                         return new IXR_Error( 404, __( 'Invalid term ID' ) );
1963
1964                 $result = wp_delete_term( $term_id, $taxonomy->name );
1965
1966                 if ( is_wp_error( $result ) )
1967                         return new IXR_Error( 500, $term->get_error_message() );
1968
1969                 if ( ! $result )
1970                         return new IXR_Error( 500, __( 'Sorry, deleting the term failed.' ) );
1971
1972                 return $result;
1973         }
1974
1975         /**
1976          * Retrieve a term.
1977          *
1978          * @since 3.4.0
1979          *
1980          * @uses get_term()
1981          * @param array $args Method parameters. Contains:
1982          *  - int     $blog_id (unused)
1983          *  - string  $username
1984          *  - string  $password
1985          *  - string  $taxonomy
1986          *  - string  $term_id
1987          * @return array|IXR_Error Array contains:
1988          *  - 'term_id'
1989          *  - 'name'
1990          *  - 'slug'
1991          *  - 'term_group'
1992          *  - 'term_taxonomy_id'
1993          *  - 'taxonomy'
1994          *  - 'description'
1995          *  - 'parent'
1996          *  - 'count'
1997          */
1998         public function wp_getTerm( $args ) {
1999                 if ( ! $this->minimum_args( $args, 5 ) )
2000                         return $this->error;
2001
2002                 $this->escape( $args );
2003
2004                 $username           = $args[1];
2005                 $password           = $args[2];
2006                 $taxonomy           = $args[3];
2007                 $term_id            = (int) $args[4];
2008
2009                 if ( ! $user = $this->login( $username, $password ) )
2010                         return $this->error;
2011
2012                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2013                 do_action( 'xmlrpc_call', 'wp.getTerm' );
2014
2015                 if ( ! taxonomy_exists( $taxonomy ) )
2016                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
2017
2018                 $taxonomy = get_taxonomy( $taxonomy );
2019
2020                 if ( ! current_user_can( $taxonomy->cap->assign_terms ) )
2021                         return new IXR_Error( 401, __( 'You are not allowed to assign terms in this taxonomy.' ) );
2022
2023                 $term = get_term( $term_id , $taxonomy->name, ARRAY_A );
2024
2025                 if ( is_wp_error( $term ) )
2026                         return new IXR_Error( 500, $term->get_error_message() );
2027
2028                 if ( ! $term )
2029                         return new IXR_Error( 404, __( 'Invalid term ID' ) );
2030
2031                 return $this->_prepare_term( $term );
2032         }
2033
2034         /**
2035          * Retrieve all terms for a taxonomy.
2036          *
2037          * @since 3.4.0
2038          *
2039          * The optional $filter parameter modifies the query used to retrieve terms.
2040          * Accepted keys are 'number', 'offset', 'orderby', 'order', 'hide_empty', and 'search'.
2041          *
2042          * @uses get_terms()
2043          * @param array $args Method parameters. Contains:
2044          *  - int     $blog_id (unused)
2045          *  - string  $username
2046          *  - string  $password
2047          *  - string  $taxonomy
2048          *  - array   $filter optional
2049          * @return array|IXR_Error terms
2050          */
2051         public function wp_getTerms( $args ) {
2052                 if ( ! $this->minimum_args( $args, 4 ) )
2053                         return $this->error;
2054
2055                 $this->escape( $args );
2056
2057                 $username       = $args[1];
2058                 $password       = $args[2];
2059                 $taxonomy       = $args[3];
2060                 $filter         = isset( $args[4] ) ? $args[4] : array();
2061
2062                 if ( ! $user = $this->login( $username, $password ) )
2063                         return $this->error;
2064
2065                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2066                 do_action( 'xmlrpc_call', 'wp.getTerms' );
2067
2068                 if ( ! taxonomy_exists( $taxonomy ) )
2069                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
2070
2071                 $taxonomy = get_taxonomy( $taxonomy );
2072
2073                 if ( ! current_user_can( $taxonomy->cap->assign_terms ) )
2074                         return new IXR_Error( 401, __( 'You are not allowed to assign terms in this taxonomy.' ) );
2075
2076                 $query = array();
2077
2078                 if ( isset( $filter['number'] ) )
2079                         $query['number'] = absint( $filter['number'] );
2080
2081                 if ( isset( $filter['offset'] ) )
2082                         $query['offset'] = absint( $filter['offset'] );
2083
2084                 if ( isset( $filter['orderby'] ) ) {
2085                         $query['orderby'] = $filter['orderby'];
2086
2087                         if ( isset( $filter['order'] ) )
2088                                 $query['order'] = $filter['order'];
2089                 }
2090
2091                 if ( isset( $filter['hide_empty'] ) )
2092                         $query['hide_empty'] = $filter['hide_empty'];
2093                 else
2094                         $query['get'] = 'all';
2095
2096                 if ( isset( $filter['search'] ) )
2097                         $query['search'] = $filter['search'];
2098
2099                 $terms = get_terms( $taxonomy->name, $query );
2100
2101                 if ( is_wp_error( $terms ) )
2102                         return new IXR_Error( 500, $terms->get_error_message() );
2103
2104                 $struct = array();
2105
2106                 foreach ( $terms as $term ) {
2107                         $struct[] = $this->_prepare_term( $term );
2108                 }
2109
2110                 return $struct;
2111         }
2112
2113         /**
2114          * Retrieve a taxonomy.
2115          *
2116          * @since 3.4.0
2117          *
2118          * @uses get_taxonomy()
2119          * @param array $args Method parameters. Contains:
2120          *  - int     $blog_id (unused)
2121          *  - string  $username
2122          *  - string  $password
2123          *  - string  $taxonomy
2124          * @return array|IXR_Error (@see get_taxonomy())
2125          */
2126         public function wp_getTaxonomy( $args ) {
2127                 if ( ! $this->minimum_args( $args, 4 ) )
2128                         return $this->error;
2129
2130                 $this->escape( $args );
2131
2132                 $username       = $args[1];
2133                 $password       = $args[2];
2134                 $taxonomy       = $args[3];
2135
2136                 if ( isset( $args[4] ) ) {
2137                         $fields = $args[4];
2138                 } else {
2139                         /**
2140                          * Filter the taxonomy query fields used by the given XML-RPC method.
2141                          *
2142                          * @since 3.4.0
2143                          *
2144                          * @param array  $fields An array of taxonomy fields to retrieve.
2145                          * @param string $method The method name.
2146                          */
2147                         $fields = apply_filters( 'xmlrpc_default_taxonomy_fields', array( 'labels', 'cap', 'object_type' ), 'wp.getTaxonomy' );
2148                 }
2149
2150                 if ( ! $user = $this->login( $username, $password ) )
2151                         return $this->error;
2152
2153                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2154                 do_action( 'xmlrpc_call', 'wp.getTaxonomy' );
2155
2156                 if ( ! taxonomy_exists( $taxonomy ) )
2157                         return new IXR_Error( 403, __( 'Invalid taxonomy' ) );
2158
2159                 $taxonomy = get_taxonomy( $taxonomy );
2160
2161                 if ( ! current_user_can( $taxonomy->cap->assign_terms ) )
2162                         return new IXR_Error( 401, __( 'You are not allowed to assign terms in this taxonomy.' ) );
2163
2164                 return $this->_prepare_taxonomy( $taxonomy, $fields );
2165         }
2166
2167         /**
2168          * Retrieve all taxonomies.
2169          *
2170          * @since 3.4.0
2171          *
2172          * @uses get_taxonomies()
2173          * @param array $args Method parameters. Contains:
2174          *  - int     $blog_id (unused)
2175          *  - string  $username
2176          *  - string  $password
2177          * @return array taxonomies
2178          */
2179         public function wp_getTaxonomies( $args ) {
2180                 if ( ! $this->minimum_args( $args, 3 ) )
2181                         return $this->error;
2182
2183                 $this->escape( $args );
2184
2185                 $username           = $args[1];
2186                 $password           = $args[2];
2187                 $filter             = isset( $args[3] ) ? $args[3] : array( 'public' => true );
2188
2189                 if ( isset( $args[4] ) ) {
2190                         $fields = $args[4];
2191                 } else {
2192                         /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2193                         $fields = apply_filters( 'xmlrpc_default_taxonomy_fields', array( 'labels', 'cap', 'object_type' ), 'wp.getTaxonomies' );
2194                 }
2195
2196                 if ( ! $user = $this->login( $username, $password ) )
2197                         return $this->error;
2198
2199                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2200                 do_action( 'xmlrpc_call', 'wp.getTaxonomies' );
2201
2202                 $taxonomies = get_taxonomies( $filter, 'objects' );
2203
2204                 // holds all the taxonomy data
2205                 $struct = array();
2206
2207                 foreach ( $taxonomies as $taxonomy ) {
2208                         // capability check for post_types
2209                         if ( ! current_user_can( $taxonomy->cap->assign_terms ) )
2210                                 continue;
2211
2212                         $struct[] = $this->_prepare_taxonomy( $taxonomy, $fields );
2213                 }
2214
2215                 return $struct;
2216         }
2217
2218         /**
2219          * Retrieve a user.
2220          *
2221          * The optional $fields parameter specifies what fields will be included
2222          * in the response array. This should be a list of field names. 'user_id' will
2223          * always be included in the response regardless of the value of $fields.
2224          *
2225          * Instead of, or in addition to, individual field names, conceptual group
2226          * names can be used to specify multiple fields. The available conceptual
2227          * groups are 'basic' and 'all'.
2228          *
2229          * @uses get_userdata()
2230          * @param array $args Method parameters. Contains:
2231          *  - int     $blog_id (unused)
2232          *  - string  $username
2233          *  - string  $password
2234          *  - int     $user_id
2235          *  - array   $fields optional
2236          * @return array|IXR_Error Array contains (based on $fields parameter):
2237          *  - 'user_id'
2238          *  - 'username'
2239          *  - 'first_name'
2240          *  - 'last_name'
2241          *  - 'registered'
2242          *  - 'bio'
2243          *  - 'email'
2244          *  - 'nickname'
2245          *  - 'nicename'
2246          *  - 'url'
2247          *  - 'display_name'
2248          *  - 'roles'
2249          */
2250         public function wp_getUser( $args ) {
2251                 if ( ! $this->minimum_args( $args, 4 ) )
2252                         return $this->error;
2253
2254                 $this->escape( $args );
2255
2256                 $username   = $args[1];
2257                 $password   = $args[2];
2258                 $user_id    = (int) $args[3];
2259
2260                 if ( isset( $args[4] ) ) {
2261                         $fields = $args[4];
2262                 } else {
2263                         /**
2264                          * Filter the default user query fields used by the given XML-RPC method.
2265                          *
2266                          * @since 3.5.0
2267                          *
2268                          * @param array  $fields User query fields for given method. Default 'all'.
2269                          * @param string $method The method name.
2270                          */
2271                         $fields = apply_filters( 'xmlrpc_default_user_fields', array( 'all' ), 'wp.getUser' );
2272                 }
2273
2274                 if ( ! $user = $this->login( $username, $password ) )
2275                         return $this->error;
2276
2277                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2278                 do_action( 'xmlrpc_call', 'wp.getUser' );
2279
2280                 if ( ! current_user_can( 'edit_user', $user_id ) )
2281                         return new IXR_Error( 401, __( 'Sorry, you cannot edit users.' ) );
2282
2283                 $user_data = get_userdata( $user_id );
2284
2285                 if ( ! $user_data )
2286                         return new IXR_Error( 404, __( 'Invalid user ID' ) );
2287
2288                 return $this->_prepare_user( $user_data, $fields );
2289         }
2290
2291         /**
2292          * Retrieve users.
2293          *
2294          * The optional $filter parameter modifies the query used to retrieve users.
2295          * Accepted keys are 'number' (default: 50), 'offset' (default: 0), 'role',
2296          * 'who', 'orderby', and 'order'.
2297          *
2298          * The optional $fields parameter specifies what fields will be included
2299          * in the response array.
2300          *
2301          * @uses get_users()
2302          * @see wp_getUser() for more on $fields and return values
2303          *
2304          * @param array $args Method parameters. Contains:
2305          *  - int     $blog_id (unused)
2306          *  - string  $username
2307          *  - string  $password
2308          *  - array   $filter optional
2309          *  - array   $fields optional
2310          * @return array|IXR_Error users data
2311          */
2312         public function wp_getUsers( $args ) {
2313                 if ( ! $this->minimum_args( $args, 3 ) )
2314                         return $this->error;
2315
2316                 $this->escape( $args );
2317
2318                 $username   = $args[1];
2319                 $password   = $args[2];
2320                 $filter     = isset( $args[3] ) ? $args[3] : array();
2321
2322                 if ( isset( $args[4] ) ) {
2323                         $fields = $args[4];
2324                 } else {
2325                         /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2326                         $fields = apply_filters( 'xmlrpc_default_user_fields', array( 'all' ), 'wp.getUsers' );
2327                 }
2328
2329                 if ( ! $user = $this->login( $username, $password ) )
2330                         return $this->error;
2331
2332                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2333                 do_action( 'xmlrpc_call', 'wp.getUsers' );
2334
2335                 if ( ! current_user_can( 'list_users' ) )
2336                         return new IXR_Error( 401, __( 'Sorry, you cannot list users.' ) );
2337
2338                 $query = array( 'fields' => 'all_with_meta' );
2339
2340                 $query['number'] = ( isset( $filter['number'] ) ) ? absint( $filter['number'] ) : 50;
2341                 $query['offset'] = ( isset( $filter['offset'] ) ) ? absint( $filter['offset'] ) : 0;
2342
2343                 if ( isset( $filter['orderby'] ) ) {
2344                         $query['orderby'] = $filter['orderby'];
2345
2346                         if ( isset( $filter['order'] ) )
2347                                 $query['order'] = $filter['order'];
2348                 }
2349
2350                 if ( isset( $filter['role'] ) ) {
2351                         if ( get_role( $filter['role'] ) === null )
2352                                 return new IXR_Error( 403, __( 'The role specified is not valid' ) );
2353
2354                         $query['role'] = $filter['role'];
2355                 }
2356
2357                 if ( isset( $filter['who'] ) ) {
2358                         $query['who'] = $filter['who'];
2359                 }
2360
2361                 $users = get_users( $query );
2362
2363                 $_users = array();
2364                 foreach ( $users as $user_data ) {
2365                         if ( current_user_can( 'edit_user', $user_data->ID ) )
2366                                 $_users[] = $this->_prepare_user( $user_data, $fields );
2367                 }
2368                 return $_users;
2369         }
2370
2371         /**
2372          * Retrieve information about the requesting user.
2373          *
2374          * @uses get_userdata()
2375          * @param array $args Method parameters. Contains:
2376          *  - int     $blog_id (unused)
2377          *  - string  $username
2378          *  - string  $password
2379          *  - array   $fields optional
2380          * @return array|IXR_Error (@see wp_getUser)
2381          */
2382         public function wp_getProfile( $args ) {
2383                 if ( ! $this->minimum_args( $args, 3 ) )
2384                         return $this->error;
2385
2386                 $this->escape( $args );
2387
2388                 $username   = $args[1];
2389                 $password   = $args[2];
2390
2391                 if ( isset( $args[3] ) ) {
2392                         $fields = $args[3];
2393                 } else {
2394                         /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2395                         $fields = apply_filters( 'xmlrpc_default_user_fields', array( 'all' ), 'wp.getProfile' );
2396                 }
2397
2398                 if ( ! $user = $this->login( $username, $password ) )
2399                         return $this->error;
2400
2401                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2402                 do_action( 'xmlrpc_call', 'wp.getProfile' );
2403
2404                 if ( ! current_user_can( 'edit_user', $user->ID ) )
2405                         return new IXR_Error( 401, __( 'Sorry, you cannot edit your profile.' ) );
2406
2407                 $user_data = get_userdata( $user->ID );
2408
2409                 return $this->_prepare_user( $user_data, $fields );
2410         }
2411
2412         /**
2413          * Edit user's profile.
2414          *
2415          * @uses wp_update_user()
2416          * @param array $args Method parameters. Contains:
2417          *  - int     $blog_id (unused)
2418          *  - string  $username
2419          *  - string  $password
2420          *  - array   $content_struct
2421          *      It can optionally contain:
2422          *      - 'first_name'
2423          *      - 'last_name'
2424          *      - 'website'
2425          *      - 'display_name'
2426          *      - 'nickname'
2427          *      - 'nicename'
2428          *      - 'bio'
2429          * @return bool|IXR_Error True, on success.
2430          */
2431         public function wp_editProfile( $args ) {
2432                 if ( ! $this->minimum_args( $args, 4 ) )
2433                         return $this->error;
2434
2435                 $this->escape( $args );
2436
2437                 $username       = $args[1];
2438                 $password       = $args[2];
2439                 $content_struct = $args[3];
2440
2441                 if ( ! $user = $this->login( $username, $password ) )
2442                         return $this->error;
2443
2444                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2445                 do_action( 'xmlrpc_call', 'wp.editProfile' );
2446
2447                 if ( ! current_user_can( 'edit_user', $user->ID ) )
2448                         return new IXR_Error( 401, __( 'Sorry, you cannot edit your profile.' ) );
2449
2450                 // holds data of the user
2451                 $user_data = array();
2452                 $user_data['ID'] = $user->ID;
2453
2454                 // only set the user details if it was given
2455                 if ( isset( $content_struct['first_name'] ) )
2456                         $user_data['first_name'] = $content_struct['first_name'];
2457
2458                 if ( isset( $content_struct['last_name'] ) )
2459                         $user_data['last_name'] = $content_struct['last_name'];
2460
2461                 if ( isset( $content_struct['url'] ) )
2462                         $user_data['user_url'] = $content_struct['url'];
2463
2464                 if ( isset( $content_struct['display_name'] ) )
2465                         $user_data['display_name'] = $content_struct['display_name'];
2466
2467                 if ( isset( $content_struct['nickname'] ) )
2468                         $user_data['nickname'] = $content_struct['nickname'];
2469
2470                 if ( isset( $content_struct['nicename'] ) )
2471                         $user_data['user_nicename'] = $content_struct['nicename'];
2472
2473                 if ( isset( $content_struct['bio'] ) )
2474                         $user_data['description'] = $content_struct['bio'];
2475
2476                 $result = wp_update_user( $user_data );
2477
2478                 if ( is_wp_error( $result ) )
2479                         return new IXR_Error( 500, $result->get_error_message() );
2480
2481                 if ( ! $result )
2482                         return new IXR_Error( 500, __( 'Sorry, the user cannot be updated.' ) );
2483
2484                 return true;
2485         }
2486
2487         /**
2488          * Retrieve page.
2489          *
2490          * @since 2.2.0
2491          *
2492          * @param array $args Method parameters. Contains:
2493          *  - blog_id (unused)
2494          *  - page_id
2495          *  - username
2496          *  - password
2497          * @return array|IXR_Error
2498          */
2499         public function wp_getPage($args) {
2500                 $this->escape($args);
2501
2502                 $page_id        = (int) $args[1];
2503                 $username       = $args[2];
2504                 $password       = $args[3];
2505
2506                 if ( !$user = $this->login($username, $password) ) {
2507                         return $this->error;
2508                 }
2509
2510                 $page = get_post($page_id);
2511                 if ( ! $page )
2512                         return new IXR_Error( 404, __( 'Invalid post ID.' ) );
2513
2514                 if ( !current_user_can( 'edit_page', $page_id ) )
2515                         return new IXR_Error( 401, __( 'Sorry, you cannot edit this page.' ) );
2516
2517                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2518                 do_action( 'xmlrpc_call', 'wp.getPage' );
2519
2520                 // If we found the page then format the data.
2521                 if ( $page->ID && ($page->post_type == 'page') ) {
2522                         return $this->_prepare_page( $page );
2523                 }
2524                 // If the page doesn't exist indicate that.
2525                 else {
2526                         return new IXR_Error( 404, __( 'Sorry, no such page.' ) );
2527                 }
2528         }
2529
2530         /**
2531          * Retrieve Pages.
2532          *
2533          * @since 2.2.0
2534          *
2535          * @param array $args Method parameters. Contains:
2536          *  - blog_id (unused)
2537          *  - username
2538          *  - password
2539          *  - num_pages
2540          * @return array|IXR_Error
2541          */
2542         public function wp_getPages($args) {
2543                 $this->escape($args);
2544
2545                 $username       = $args[1];
2546                 $password       = $args[2];
2547                 $num_pages      = isset($args[3]) ? (int) $args[3] : 10;
2548
2549                 if ( !$user = $this->login($username, $password) )
2550                         return $this->error;
2551
2552                 if ( !current_user_can( 'edit_pages' ) )
2553                         return new IXR_Error( 401, __( 'Sorry, you cannot edit pages.' ) );
2554
2555                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2556                 do_action( 'xmlrpc_call', 'wp.getPages' );
2557
2558                 $pages = get_posts( array('post_type' => 'page', 'post_status' => 'any', 'numberposts' => $num_pages) );
2559                 $num_pages = count($pages);
2560
2561                 // If we have pages, put together their info.
2562                 if ( $num_pages >= 1 ) {
2563                         $pages_struct = array();
2564
2565                         foreach ($pages as $page) {
2566                                 if ( current_user_can( 'edit_page', $page->ID ) )
2567                                         $pages_struct[] = $this->_prepare_page( $page );
2568                         }
2569
2570                         return $pages_struct;
2571                 }
2572
2573                 return array();
2574         }
2575
2576         /**
2577          * Create new page.
2578          *
2579          * @since 2.2.0
2580          *
2581          * @param array $args Method parameters. See {@link wp_xmlrpc_server::mw_newPost()}
2582          * @return int|IXR_Error
2583          */
2584         public function wp_newPage($args) {
2585                 // Items not escaped here will be escaped in newPost.
2586                 $username       = $this->escape($args[1]);
2587                 $password       = $this->escape($args[2]);
2588
2589                 if ( !$user = $this->login($username, $password) )
2590                         return $this->error;
2591
2592                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2593                 do_action( 'xmlrpc_call', 'wp.newPage' );
2594
2595                 // Mark this as content for a page.
2596                 $args[3]["post_type"] = 'page';
2597
2598                 // Let mw_newPost do all of the heavy lifting.
2599                 return $this->mw_newPost( $args );
2600         }
2601
2602         /**
2603          * Delete page.
2604          *
2605          * @since 2.2.0
2606          *
2607          * @param array $args Method parameters.
2608          * @return bool|IXR_Error True, if success.
2609          */
2610         public function wp_deletePage($args) {
2611                 $this->escape($args);
2612
2613                 $username       = $args[1];
2614                 $password       = $args[2];
2615                 $page_id        = (int) $args[3];
2616
2617                 if ( !$user = $this->login($username, $password) )
2618                         return $this->error;
2619
2620                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2621                 do_action( 'xmlrpc_call', 'wp.deletePage' );
2622
2623                 // Get the current page based on the page_id and
2624                 // make sure it is a page and not a post.
2625                 $actual_page = get_post($page_id, ARRAY_A);
2626                 if ( !$actual_page || ($actual_page['post_type'] != 'page') )
2627                         return new IXR_Error( 404, __( 'Sorry, no such page.' ) );
2628
2629                 // Make sure the user can delete pages.
2630                 if ( !current_user_can('delete_page', $page_id) )
2631                         return new IXR_Error( 401, __( 'Sorry, you do not have the right to delete this page.' ) );
2632
2633                 // Attempt to delete the page.
2634                 $result = wp_delete_post($page_id);
2635                 if ( !$result )
2636                         return new IXR_Error( 500, __( 'Failed to delete the page.' ) );
2637
2638                 /**
2639                  * Fires after a page has been successfully deleted via XML-RPC.
2640                  *
2641                  * @since 3.4.0
2642                  *
2643                  * @param int   $page_id ID of the deleted page.
2644                  * @param array $args    An array of arguments to delete the page.
2645                  */
2646                 do_action( 'xmlrpc_call_success_wp_deletePage', $page_id, $args );
2647
2648                 return true;
2649         }
2650
2651         /**
2652          * Edit page.
2653          *
2654          * @since 2.2.0
2655          *
2656          * @param array $args Method parameters.
2657          * @return array|IXR_Error
2658          */
2659         public function wp_editPage($args) {
2660                 // Items not escaped here will be escaped in editPost.
2661                 $page_id        = (int) $this->escape($args[1]);
2662                 $username       = $this->escape($args[2]);
2663                 $password       = $this->escape($args[3]);
2664                 $content        = $args[4];
2665                 $publish        = $args[5];
2666
2667                 if ( !$user = $this->login($username, $password) )
2668                         return $this->error;
2669
2670                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2671                 do_action( 'xmlrpc_call', 'wp.editPage' );
2672
2673                 // Get the page data and make sure it is a page.
2674                 $actual_page = get_post($page_id, ARRAY_A);
2675                 if ( !$actual_page || ($actual_page['post_type'] != 'page') )
2676                         return new IXR_Error( 404, __( 'Sorry, no such page.' ) );
2677
2678                 // Make sure the user is allowed to edit pages.
2679                 if ( !current_user_can('edit_page', $page_id) )
2680                         return new IXR_Error( 401, __( 'Sorry, you do not have the right to edit this page.' ) );
2681
2682                 // Mark this as content for a page.
2683                 $content['post_type'] = 'page';
2684
2685                 // Arrange args in the way mw_editPost understands.
2686                 $args = array(
2687                         $page_id,
2688                         $username,
2689                         $password,
2690                         $content,
2691                         $publish
2692                 );
2693
2694                 // Let mw_editPost do all of the heavy lifting.
2695                 return $this->mw_editPost( $args );
2696         }
2697
2698         /**
2699          * Retrieve page list.
2700          *
2701          * @since 2.2.0
2702          *
2703          * @param array $args Method parameters.
2704          * @return array|IXR_Error
2705          */
2706         public function wp_getPageList($args) {
2707                 global $wpdb;
2708
2709                 $this->escape($args);
2710
2711                 $username                               = $args[1];
2712                 $password                               = $args[2];
2713
2714                 if ( !$user = $this->login($username, $password) )
2715                         return $this->error;
2716
2717                 if ( !current_user_can( 'edit_pages' ) )
2718                         return new IXR_Error( 401, __( 'Sorry, you cannot edit pages.' ) );
2719
2720                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2721                 do_action( 'xmlrpc_call', 'wp.getPageList' );
2722
2723                 // Get list of pages ids and titles
2724                 $page_list = $wpdb->get_results("
2725                         SELECT ID page_id,
2726                                 post_title page_title,
2727                                 post_parent page_parent_id,
2728                                 post_date_gmt,
2729                                 post_date,
2730                                 post_status
2731                         FROM {$wpdb->posts}
2732                         WHERE post_type = 'page'
2733                         ORDER BY ID
2734                 ");
2735
2736                 // The date needs to be formatted properly.
2737                 $num_pages = count($page_list);
2738                 for ( $i = 0; $i < $num_pages; $i++ ) {
2739                         $page_list[$i]->dateCreated = $this->_convert_date(  $page_list[$i]->post_date );
2740                         $page_list[$i]->date_created_gmt = $this->_convert_date_gmt( $page_list[$i]->post_date_gmt, $page_list[$i]->post_date );
2741
2742                         unset($page_list[$i]->post_date_gmt);
2743                         unset($page_list[$i]->post_date);
2744                         unset($page_list[$i]->post_status);
2745                 }
2746
2747                 return $page_list;
2748         }
2749
2750         /**
2751          * Retrieve authors list.
2752          *
2753          * @since 2.2.0
2754          *
2755          * @param array $args Method parameters.
2756          * @return array|IXR_Error
2757          */
2758         public function wp_getAuthors($args) {
2759
2760                 $this->escape($args);
2761
2762                 $username       = $args[1];
2763                 $password       = $args[2];
2764
2765                 if ( !$user = $this->login($username, $password) )
2766                         return $this->error;
2767
2768                 if ( !current_user_can('edit_posts') )
2769                         return new IXR_Error( 401, __( 'Sorry, you cannot edit posts on this site.' ) );
2770
2771                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2772                 do_action( 'xmlrpc_call', 'wp.getAuthors' );
2773
2774                 $authors = array();
2775                 foreach ( get_users( array( 'fields' => array('ID','user_login','display_name') ) ) as $user ) {
2776                         $authors[] = array(
2777                                 'user_id'       => $user->ID,
2778                                 'user_login'    => $user->user_login,
2779                                 'display_name'  => $user->display_name
2780                         );
2781                 }
2782
2783                 return $authors;
2784         }
2785
2786         /**
2787          * Get list of all tags
2788          *
2789          * @since 2.7.0
2790          *
2791          * @param array $args Method parameters.
2792          * @return array|IXR_Error
2793          */
2794         public function wp_getTags( $args ) {
2795                 $this->escape( $args );
2796
2797                 $username               = $args[1];
2798                 $password               = $args[2];
2799
2800                 if ( !$user = $this->login($username, $password) )
2801                         return $this->error;
2802
2803                 if ( !current_user_can( 'edit_posts' ) )
2804                         return new IXR_Error( 401, __( 'Sorry, you must be able to edit posts on this site in order to view tags.' ) );
2805
2806                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2807                 do_action( 'xmlrpc_call', 'wp.getKeywords' );
2808
2809                 $tags = array();
2810
2811                 if ( $all_tags = get_tags() ) {
2812                         foreach( (array) $all_tags as $tag ) {
2813                                 $struct = array();
2814                                 $struct['tag_id']                       = $tag->term_id;
2815                                 $struct['name']                         = $tag->name;
2816                                 $struct['count']                        = $tag->count;
2817                                 $struct['slug']                         = $tag->slug;
2818                                 $struct['html_url']                     = esc_html( get_tag_link( $tag->term_id ) );
2819                                 $struct['rss_url']                      = esc_html( get_tag_feed_link( $tag->term_id ) );
2820
2821                                 $tags[] = $struct;
2822                         }
2823                 }
2824
2825                 return $tags;
2826         }
2827
2828         /**
2829          * Create new category.
2830          *
2831          * @since 2.2.0
2832          *
2833          * @param array $args Method parameters.
2834          * @return int|IXR_Error Category ID.
2835          */
2836         public function wp_newCategory($args) {
2837                 $this->escape($args);
2838
2839                 $username                               = $args[1];
2840                 $password                               = $args[2];
2841                 $category                               = $args[3];
2842
2843                 if ( !$user = $this->login($username, $password) )
2844                         return $this->error;
2845
2846                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2847                 do_action( 'xmlrpc_call', 'wp.newCategory' );
2848
2849                 // Make sure the user is allowed to add a category.
2850                 if ( !current_user_can('manage_categories') )
2851                         return new IXR_Error(401, __('Sorry, you do not have the right to add a category.'));
2852
2853                 // If no slug was provided make it empty so that
2854                 // WordPress will generate one.
2855                 if ( empty($category['slug']) )
2856                         $category['slug'] = '';
2857
2858                 // If no parent_id was provided make it empty
2859                 // so that it will be a top level page (no parent).
2860                 if ( !isset($category['parent_id']) )
2861                         $category['parent_id'] = '';
2862
2863                 // If no description was provided make it empty.
2864                 if ( empty($category["description"]) )
2865                         $category["description"] = "";
2866
2867                 $new_category = array(
2868                         'cat_name'                              => $category['name'],
2869                         'category_nicename'             => $category['slug'],
2870                         'category_parent'               => $category['parent_id'],
2871                         'category_description'  => $category['description']
2872                 );
2873
2874                 $cat_id = wp_insert_category($new_category, true);
2875                 if ( is_wp_error( $cat_id ) ) {
2876                         if ( 'term_exists' == $cat_id->get_error_code() )
2877                                 return (int) $cat_id->get_error_data();
2878                         else
2879                                 return new IXR_Error(500, __('Sorry, the new category failed.'));
2880                 } elseif ( ! $cat_id ) {
2881                         return new IXR_Error(500, __('Sorry, the new category failed.'));
2882                 }
2883
2884                 /**
2885                  * Fires after a new category has been successfully created via XML-RPC.
2886                  *
2887                  * @since 3.4.0
2888                  *
2889                  * @param int   $cat_id ID of the new category.
2890                  * @param array $args   An array of new category arguments.
2891                  */
2892                 do_action( 'xmlrpc_call_success_wp_newCategory', $cat_id, $args );
2893
2894                 return $cat_id;
2895         }
2896
2897         /**
2898          * Remove category.
2899          *
2900          * @since 2.5.0
2901          *
2902          * @param array $args Method parameters.
2903          * @return bool|IXR_Error See {@link wp_delete_term()} for return info.
2904          */
2905         public function wp_deleteCategory($args) {
2906                 $this->escape($args);
2907
2908                 $username               = $args[1];
2909                 $password               = $args[2];
2910                 $category_id    = (int) $args[3];
2911
2912                 if ( !$user = $this->login($username, $password) )
2913                         return $this->error;
2914
2915                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2916                 do_action( 'xmlrpc_call', 'wp.deleteCategory' );
2917
2918                 if ( !current_user_can('manage_categories') )
2919                         return new IXR_Error( 401, __( 'Sorry, you do not have the right to delete a category.' ) );
2920
2921                 $status = wp_delete_term( $category_id, 'category' );
2922
2923                 if ( true == $status ) {
2924                         /**
2925                          * Fires after a category has been successfully deleted via XML-RPC.
2926                          *
2927                          * @since 3.4.0
2928                          *
2929                          * @param int   $category_id ID of the deleted category.
2930                          * @param array $args        An array of arguments to delete the category.
2931                          */
2932                         do_action( 'xmlrpc_call_success_wp_deleteCategory', $category_id, $args );
2933                 }
2934
2935                 return $status;
2936         }
2937
2938         /**
2939          * Retrieve category list.
2940          *
2941          * @since 2.2.0
2942          *
2943          * @param array $args Method parameters.
2944          * @return array|IXR_Error
2945          */
2946         public function wp_suggestCategories($args) {
2947                 $this->escape($args);
2948
2949                 $username                               = $args[1];
2950                 $password                               = $args[2];
2951                 $category                               = $args[3];
2952                 $max_results                    = (int) $args[4];
2953
2954                 if ( !$user = $this->login($username, $password) )
2955                         return $this->error;
2956
2957                 if ( !current_user_can( 'edit_posts' ) )
2958                         return new IXR_Error( 401, __( 'Sorry, you must be able to edit posts on this site in order to view categories.' ) );
2959
2960                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2961                 do_action( 'xmlrpc_call', 'wp.suggestCategories' );
2962
2963                 $category_suggestions = array();
2964                 $args = array('get' => 'all', 'number' => $max_results, 'name__like' => $category);
2965                 foreach ( (array) get_categories($args) as $cat ) {
2966                         $category_suggestions[] = array(
2967                                 'category_id'   => $cat->term_id,
2968                                 'category_name' => $cat->name
2969                         );
2970                 }
2971
2972                 return $category_suggestions;
2973         }
2974
2975         /**
2976          * Retrieve comment.
2977          *
2978          * @since 2.7.0
2979          *
2980          * @param array $args Method parameters.
2981          * @return array|IXR_Error
2982          */
2983         public function wp_getComment($args) {
2984                 $this->escape($args);
2985
2986                 $username       = $args[1];
2987                 $password       = $args[2];
2988                 $comment_id     = (int) $args[3];
2989
2990                 if ( !$user = $this->login($username, $password) )
2991                         return $this->error;
2992
2993                 if ( !current_user_can( 'moderate_comments' ) )
2994                         return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );
2995
2996                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
2997                 do_action( 'xmlrpc_call', 'wp.getComment' );
2998
2999                 if ( ! $comment = get_comment($comment_id) )
3000                         return new IXR_Error( 404, __( 'Invalid comment ID.' ) );
3001
3002                 return $this->_prepare_comment( $comment );
3003         }
3004
3005         /**
3006          * Retrieve comments.
3007          *
3008          * Besides the common blog_id (unused), username, and password arguments, it takes a filter
3009          * array as last argument.
3010          *
3011          * Accepted 'filter' keys are 'status', 'post_id', 'offset', and 'number'.
3012          *
3013          * The defaults are as follows:
3014          * - 'status' - Default is ''. Filter by status (e.g., 'approve', 'hold')
3015          * - 'post_id' - Default is ''. The post where the comment is posted. Empty string shows all comments.
3016          * - 'number' - Default is 10. Total number of media items to retrieve.
3017          * - 'offset' - Default is 0. See {@link WP_Query::query()} for more.
3018          *
3019          * @since 2.7.0
3020          *
3021          * @param array $args Method parameters.
3022          * @return array|IXR_Error Contains a collection of comments. See {@link wp_xmlrpc_server::wp_getComment()} for a description of each item contents
3023          */
3024         public function wp_getComments($args) {
3025                 $this->escape($args);
3026
3027                 $username       = $args[1];
3028                 $password       = $args[2];
3029                 $struct         = isset( $args[3] ) ? $args[3] : array();
3030
3031                 if ( !$user = $this->login($username, $password) )
3032                         return $this->error;
3033
3034                 if ( !current_user_can( 'moderate_comments' ) )
3035                         return new IXR_Error( 401, __( 'Sorry, you cannot edit comments.' ) );
3036
3037                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3038                 do_action( 'xmlrpc_call', 'wp.getComments' );
3039
3040                 if ( isset($struct['status']) )
3041                         $status = $struct['status'];
3042                 else
3043                         $status = '';
3044
3045                 $post_id = '';
3046                 if ( isset($struct['post_id']) )
3047                         $post_id = absint($struct['post_id']);
3048
3049                 $offset = 0;
3050                 if ( isset($struct['offset']) )
3051                         $offset = absint($struct['offset']);
3052
3053                 $number = 10;
3054                 if ( isset($struct['number']) )
3055                         $number = absint($struct['number']);
3056
3057                 $comments = get_comments( array('status' => $status, 'post_id' => $post_id, 'offset' => $offset, 'number' => $number ) );
3058
3059                 $comments_struct = array();
3060
3061                 foreach ( $comments as $comment ) {
3062                         $comments_struct[] = $this->_prepare_comment( $comment );
3063                 }
3064
3065                 return $comments_struct;
3066         }
3067
3068         /**
3069          * Delete a comment.
3070          *
3071          * By default, the comment will be moved to the trash instead of deleted.
3072          * See {@link wp_delete_comment()} for more information on
3073          * this behavior.
3074          *
3075          * @since 2.7.0
3076          *
3077          * @param array $args Method parameters. Contains:
3078          *  - blog_id (unused)
3079          *  - username
3080          *  - password
3081          *  - comment_id
3082          * @return bool|IXR_Error {@link wp_delete_comment()}
3083          */
3084         public function wp_deleteComment($args) {
3085                 $this->escape($args);
3086
3087                 $username       = $args[1];
3088                 $password       = $args[2];
3089                 $comment_ID     = (int) $args[3];
3090
3091                 if ( !$user = $this->login($username, $password) )
3092                         return $this->error;
3093
3094                 if ( !current_user_can( 'moderate_comments' ) )
3095                         return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );
3096
3097                 if ( ! get_comment($comment_ID) )
3098                         return new IXR_Error( 404, __( 'Invalid comment ID.' ) );
3099
3100                 if ( !current_user_can( 'edit_comment', $comment_ID ) )
3101                         return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );
3102
3103                 /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
3104                 do_action( 'xmlrpc_call', 'wp.deleteComment' );
3105
3106                 $status = wp_delete_comment( $comment_ID );
3107
3108                 if ( true == $status ) {
3109                         /**
3110                          * Fires after a comment has been successfully deleted via XML-RPC.
3111                          *
3112                          * @since 3.4.0
3113                          *
3114                          * @param int   $comment_ID ID of the deleted comment.
3115                          * @param array $args       An array of arguments to delete the comment.
3116                          */
3117                         do_action( 'xmlrpc_call_success_wp_deleteComment', $comment_ID, $args );
3118                 }
3119
3120                 return $status;
3121         }
3122
3123         /**
3124          * Edit comment.
3125          *
3126          * Besides the common blog_id (unused), username, and password arguments, it takes a
3127          * comment_id integer and a content_struct array as last argument.
3128          *
3129          * The allowed keys in the content_struct array are:
3130          *  - 'author'
3131          *  - 'author_url'
3132          *  - 'author_email'
3133          *  - 'content'
3134          *  - 'date_created_gmt'
3135          *  - 'status'. Common statuses are 'approve', 'hold', 'spam'. See {@link get_comment_statuses()} for more details
3136          *
3137          * @since 2.7.0
3138          *
3139          * @param array $args Contains:
3140          *  - blog_id (unused)
3141          *  - username
3142          *  - password
3143          *  - comment_id