wp/wp-admin/includes/post.php
changeset 0 d970ebf37754
child 5 5e2f62d02dcd
equal deleted inserted replaced
-1:000000000000 0:d970ebf37754
       
     1 <?php
       
     2 /**
       
     3  * WordPress Post Administration API.
       
     4  *
       
     5  * @package WordPress
       
     6  * @subpackage Administration
       
     7  */
       
     8 
       
     9 /**
       
    10  * Rename $_POST data from form names to DB post columns.
       
    11  *
       
    12  * Manipulates $_POST directly.
       
    13  *
       
    14  * @package WordPress
       
    15  * @since 2.6.0
       
    16  *
       
    17  * @param bool $update Are we updating a pre-existing post?
       
    18  * @param array $post_data Array of post data. Defaults to the contents of $_POST.
       
    19  * @return object|bool WP_Error on failure, true on success.
       
    20  */
       
    21 function _wp_translate_postdata( $update = false, $post_data = null ) {
       
    22 
       
    23 	if ( empty($post_data) )
       
    24 		$post_data = &$_POST;
       
    25 
       
    26 	if ( $update )
       
    27 		$post_data['ID'] = (int) $post_data['post_ID'];
       
    28 
       
    29 	$ptype = get_post_type_object( $post_data['post_type'] );
       
    30 
       
    31 	if ( $update && ! current_user_can( 'edit_post', $post_data['ID'] ) ) {
       
    32 		if ( 'page' == $post_data['post_type'] )
       
    33 			return new WP_Error( 'edit_others_pages', __( 'You are not allowed to edit pages as this user.' ) );
       
    34 		else
       
    35 			return new WP_Error( 'edit_others_posts', __( 'You are not allowed to edit posts as this user.' ) );
       
    36 	} elseif ( ! $update && ! current_user_can( $ptype->cap->create_posts ) ) {
       
    37 		if ( 'page' == $post_data['post_type'] )
       
    38 			return new WP_Error( 'edit_others_pages', __( 'You are not allowed to create pages as this user.' ) );
       
    39 		else
       
    40 			return new WP_Error( 'edit_others_posts', __( 'You are not allowed to create posts as this user.' ) );
       
    41 	}
       
    42 
       
    43 	if ( isset( $post_data['content'] ) )
       
    44 		$post_data['post_content'] = $post_data['content'];
       
    45 
       
    46 	if ( isset( $post_data['excerpt'] ) )
       
    47 		$post_data['post_excerpt'] = $post_data['excerpt'];
       
    48 
       
    49 	if ( isset( $post_data['parent_id'] ) )
       
    50 		$post_data['post_parent'] = (int) $post_data['parent_id'];
       
    51 
       
    52 	if ( isset($post_data['trackback_url']) )
       
    53 		$post_data['to_ping'] = $post_data['trackback_url'];
       
    54 
       
    55 	$post_data['user_ID'] = get_current_user_id();
       
    56 
       
    57 	if (!empty ( $post_data['post_author_override'] ) ) {
       
    58 		$post_data['post_author'] = (int) $post_data['post_author_override'];
       
    59 	} else {
       
    60 		if (!empty ( $post_data['post_author'] ) ) {
       
    61 			$post_data['post_author'] = (int) $post_data['post_author'];
       
    62 		} else {
       
    63 			$post_data['post_author'] = (int) $post_data['user_ID'];
       
    64 		}
       
    65 	}
       
    66 
       
    67 	if ( isset( $post_data['user_ID'] ) && ( $post_data['post_author'] != $post_data['user_ID'] )
       
    68 		 && ! current_user_can( $ptype->cap->edit_others_posts ) ) {
       
    69 		if ( $update ) {
       
    70 			if ( 'page' == $post_data['post_type'] )
       
    71 				return new WP_Error( 'edit_others_pages', __( 'You are not allowed to edit pages as this user.' ) );
       
    72 			else
       
    73 				return new WP_Error( 'edit_others_posts', __( 'You are not allowed to edit posts as this user.' ) );
       
    74 		} else {
       
    75 			if ( 'page' == $post_data['post_type'] )
       
    76 				return new WP_Error( 'edit_others_pages', __( 'You are not allowed to create pages as this user.' ) );
       
    77 			else
       
    78 				return new WP_Error( 'edit_others_posts', __( 'You are not allowed to create posts as this user.' ) );
       
    79 		}
       
    80 	}
       
    81 
       
    82 	if ( ! empty( $post_data['post_status'] ) )
       
    83 		$post_data['post_status'] = sanitize_key( $post_data['post_status'] );
       
    84 
       
    85 	// What to do based on which button they pressed
       
    86 	if ( isset($post_data['saveasdraft']) && '' != $post_data['saveasdraft'] )
       
    87 		$post_data['post_status'] = 'draft';
       
    88 	if ( isset($post_data['saveasprivate']) && '' != $post_data['saveasprivate'] )
       
    89 		$post_data['post_status'] = 'private';
       
    90 	if ( isset($post_data['publish']) && ( '' != $post_data['publish'] ) && ( !isset($post_data['post_status']) || $post_data['post_status'] != 'private' ) )
       
    91 		$post_data['post_status'] = 'publish';
       
    92 	if ( isset($post_data['advanced']) && '' != $post_data['advanced'] )
       
    93 		$post_data['post_status'] = 'draft';
       
    94 	if ( isset($post_data['pending']) && '' != $post_data['pending'] )
       
    95 		$post_data['post_status'] = 'pending';
       
    96 
       
    97 	if ( isset( $post_data['ID'] ) )
       
    98 		$post_id = $post_data['ID'];
       
    99 	else
       
   100 		$post_id = false;
       
   101 	$previous_status = $post_id ? get_post_field( 'post_status', $post_id ) : false;
       
   102 
       
   103 	$published_statuses = array( 'publish', 'future' );
       
   104 
       
   105 	// Posts 'submitted for approval' present are submitted to $_POST the same as if they were being published.
       
   106 	// Change status from 'publish' to 'pending' if user lacks permissions to publish or to resave published posts.
       
   107 	if ( isset($post_data['post_status']) && (in_array( $post_data['post_status'], $published_statuses ) && !current_user_can( $ptype->cap->publish_posts )) )
       
   108 		if ( ! in_array( $previous_status, $published_statuses ) || !current_user_can( 'edit_post', $post_id ) )
       
   109 			$post_data['post_status'] = 'pending';
       
   110 
       
   111 	if ( ! isset($post_data['post_status']) )
       
   112 		$post_data['post_status'] = $previous_status;
       
   113 
       
   114 	if (!isset( $post_data['comment_status'] ))
       
   115 		$post_data['comment_status'] = 'closed';
       
   116 
       
   117 	if (!isset( $post_data['ping_status'] ))
       
   118 		$post_data['ping_status'] = 'closed';
       
   119 
       
   120 	foreach ( array('aa', 'mm', 'jj', 'hh', 'mn') as $timeunit ) {
       
   121 		if ( !empty( $post_data['hidden_' . $timeunit] ) && $post_data['hidden_' . $timeunit] != $post_data[$timeunit] ) {
       
   122 			$post_data['edit_date'] = '1';
       
   123 			break;
       
   124 		}
       
   125 	}
       
   126 
       
   127 	if ( !empty( $post_data['edit_date'] ) ) {
       
   128 		$aa = $post_data['aa'];
       
   129 		$mm = $post_data['mm'];
       
   130 		$jj = $post_data['jj'];
       
   131 		$hh = $post_data['hh'];
       
   132 		$mn = $post_data['mn'];
       
   133 		$ss = $post_data['ss'];
       
   134 		$aa = ($aa <= 0 ) ? date('Y') : $aa;
       
   135 		$mm = ($mm <= 0 ) ? date('n') : $mm;
       
   136 		$jj = ($jj > 31 ) ? 31 : $jj;
       
   137 		$jj = ($jj <= 0 ) ? date('j') : $jj;
       
   138 		$hh = ($hh > 23 ) ? $hh -24 : $hh;
       
   139 		$mn = ($mn > 59 ) ? $mn -60 : $mn;
       
   140 		$ss = ($ss > 59 ) ? $ss -60 : $ss;
       
   141 		$post_data['post_date'] = sprintf( "%04d-%02d-%02d %02d:%02d:%02d", $aa, $mm, $jj, $hh, $mn, $ss );
       
   142 		$valid_date = wp_checkdate( $mm, $jj, $aa, $post_data['post_date'] );
       
   143 		if ( !$valid_date ) {
       
   144 			return new WP_Error( 'invalid_date', __( 'Whoops, the provided date is invalid.' ) );
       
   145 		}
       
   146 		$post_data['post_date_gmt'] = get_gmt_from_date( $post_data['post_date'] );
       
   147 	}
       
   148 
       
   149 	return $post_data;
       
   150 }
       
   151 
       
   152 /**
       
   153  * Update an existing post with values provided in $_POST.
       
   154  *
       
   155  * @since 1.5.0
       
   156  *
       
   157  * @param array $post_data Optional.
       
   158  * @return int Post ID.
       
   159  */
       
   160 function edit_post( $post_data = null ) {
       
   161 
       
   162 	if ( empty($post_data) )
       
   163 		$post_data = &$_POST;
       
   164 
       
   165 	// Clear out any data in internal vars.
       
   166 	unset( $post_data['filter'] );
       
   167 
       
   168 	$post_ID = (int) $post_data['post_ID'];
       
   169 	$post = get_post( $post_ID );
       
   170 	$post_data['post_type'] = $post->post_type;
       
   171 	$post_data['post_mime_type'] = $post->post_mime_type;
       
   172 
       
   173 	$ptype = get_post_type_object($post_data['post_type']);
       
   174 	if ( !current_user_can( 'edit_post', $post_ID ) ) {
       
   175 		if ( 'page' == $post_data['post_type'] )
       
   176 			wp_die( __('You are not allowed to edit this page.' ));
       
   177 		else
       
   178 			wp_die( __('You are not allowed to edit this post.' ));
       
   179 	}
       
   180 
       
   181 	if ( post_type_supports( $ptype->name, 'revisions' ) ) {
       
   182 		$revisions = wp_get_post_revisions( $post_ID, array( 'order' => 'ASC', 'posts_per_page' => 1 ) );
       
   183 		$revision = current( $revisions );
       
   184 
       
   185 		// Check if the revisions have been upgraded
       
   186 		if ( $revisions && _wp_get_post_revision_version( $revision ) < 1 )
       
   187 			_wp_upgrade_revisions_of_post( $post, wp_get_post_revisions( $post_ID ) );
       
   188 	}
       
   189 
       
   190 	$post_data = _wp_translate_postdata( true, $post_data );
       
   191 	if ( is_wp_error($post_data) )
       
   192 		wp_die( $post_data->get_error_message() );
       
   193 	if ( ( empty( $post_data['action'] ) || 'autosave' != $post_data['action'] ) && 'auto-draft' == $post_data['post_status'] ) {
       
   194 		$post_data['post_status'] = 'draft';
       
   195 	}
       
   196 
       
   197 	if ( isset($post_data['visibility']) ) {
       
   198 		switch ( $post_data['visibility'] ) {
       
   199 			case 'public' :
       
   200 				$post_data['post_password'] = '';
       
   201 				break;
       
   202 			case 'password' :
       
   203 				unset( $post_data['sticky'] );
       
   204 				break;
       
   205 			case 'private' :
       
   206 				$post_data['post_status'] = 'private';
       
   207 				$post_data['post_password'] = '';
       
   208 				unset( $post_data['sticky'] );
       
   209 				break;
       
   210 		}
       
   211 	}
       
   212 
       
   213 	// Post Formats
       
   214 	if ( isset( $post_data['post_format'] ) )
       
   215 		set_post_format( $post_ID, $post_data['post_format'] );
       
   216 
       
   217 	$format_meta_urls = array( 'url', 'link_url', 'quote_source_url' );
       
   218 	foreach ( $format_meta_urls as $format_meta_url ) {
       
   219 		$keyed = '_format_' . $format_meta_url;
       
   220 		if ( isset( $post_data[ $keyed ] ) )
       
   221 			update_post_meta( $post_ID, $keyed, wp_slash( esc_url_raw( wp_unslash( $post_data[ $keyed ] ) ) ) );
       
   222 	}
       
   223 
       
   224 	$format_keys = array( 'quote', 'quote_source_name', 'image', 'gallery', 'audio_embed', 'video_embed' );
       
   225 
       
   226 	foreach ( $format_keys as $key ) {
       
   227 		$keyed = '_format_' . $key;
       
   228 		if ( isset( $post_data[ $keyed ] ) ) {
       
   229 			if ( current_user_can( 'unfiltered_html' ) )
       
   230 				update_post_meta( $post_ID, $keyed, $post_data[ $keyed ] );
       
   231 			else
       
   232 				update_post_meta( $post_ID, $keyed, wp_filter_post_kses( $post_data[ $keyed ] ) );
       
   233 		}
       
   234 	}
       
   235 
       
   236 	// Meta Stuff
       
   237 	if ( isset($post_data['meta']) && $post_data['meta'] ) {
       
   238 		foreach ( $post_data['meta'] as $key => $value ) {
       
   239 			if ( !$meta = get_post_meta_by_id( $key ) )
       
   240 				continue;
       
   241 			if ( $meta->post_id != $post_ID )
       
   242 				continue;
       
   243 			if ( is_protected_meta( $value['key'], 'post' ) || ! current_user_can( 'edit_post_meta', $post_ID, $value['key'] ) )
       
   244 				continue;
       
   245 			update_meta( $key, $value['key'], $value['value'] );
       
   246 		}
       
   247 	}
       
   248 
       
   249 	if ( isset($post_data['deletemeta']) && $post_data['deletemeta'] ) {
       
   250 		foreach ( $post_data['deletemeta'] as $key => $value ) {
       
   251 			if ( !$meta = get_post_meta_by_id( $key ) )
       
   252 				continue;
       
   253 			if ( $meta->post_id != $post_ID )
       
   254 				continue;
       
   255 			if ( is_protected_meta( $meta->meta_key, 'post' ) || ! current_user_can( 'delete_post_meta', $post_ID, $meta->meta_key ) )
       
   256 				continue;
       
   257 			delete_meta( $key );
       
   258 		}
       
   259 	}
       
   260 
       
   261 	// Attachment stuff
       
   262 	if ( 'attachment' == $post_data['post_type'] ) {
       
   263 		if ( isset( $post_data[ '_wp_attachment_image_alt' ] ) ) {
       
   264 			$image_alt = wp_unslash( $post_data['_wp_attachment_image_alt'] );
       
   265 			if ( $image_alt != get_post_meta( $post_ID, '_wp_attachment_image_alt', true ) ) {
       
   266 				$image_alt = wp_strip_all_tags( $image_alt, true );
       
   267 				// update_meta expects slashed
       
   268 				update_post_meta( $post_ID, '_wp_attachment_image_alt', wp_slash( $image_alt ) );
       
   269 			}
       
   270 		}
       
   271 
       
   272 		$attachment_data = isset( $post_data['attachments'][ $post_ID ] ) ? $post_data['attachments'][ $post_ID ] : array();
       
   273 		/** This filter is documented in wp-admin/includes/media.php */
       
   274 		$post_data = apply_filters( 'attachment_fields_to_save', $post_data, $attachment_data );
       
   275 	}
       
   276 
       
   277 	add_meta( $post_ID );
       
   278 
       
   279 	update_post_meta( $post_ID, '_edit_last', get_current_user_id() );
       
   280 
       
   281 	wp_update_post( $post_data );
       
   282 
       
   283 	// Now that we have an ID we can fix any attachment anchor hrefs
       
   284 	_fix_attachment_links( $post_ID );
       
   285 
       
   286 	wp_set_post_lock( $post_ID );
       
   287 
       
   288 	if ( current_user_can( $ptype->cap->edit_others_posts ) ) {
       
   289 		if ( ! empty( $post_data['sticky'] ) )
       
   290 			stick_post( $post_ID );
       
   291 		else
       
   292 			unstick_post( $post_ID );
       
   293 	}
       
   294 
       
   295 	return $post_ID;
       
   296 }
       
   297 
       
   298 /**
       
   299  * Process the post data for the bulk editing of posts.
       
   300  *
       
   301  * Updates all bulk edited posts/pages, adding (but not removing) tags and
       
   302  * categories. Skips pages when they would be their own parent or child.
       
   303  *
       
   304  * @since 2.7.0
       
   305  *
       
   306  * @param array $post_data Optional, the array of post data to process if not provided will use $_POST superglobal.
       
   307  * @return array
       
   308  */
       
   309 function bulk_edit_posts( $post_data = null ) {
       
   310 	global $wpdb;
       
   311 
       
   312 	if ( empty($post_data) )
       
   313 		$post_data = &$_POST;
       
   314 
       
   315 	if ( isset($post_data['post_type']) )
       
   316 		$ptype = get_post_type_object($post_data['post_type']);
       
   317 	else
       
   318 		$ptype = get_post_type_object('post');
       
   319 
       
   320 	if ( !current_user_can( $ptype->cap->edit_posts ) ) {
       
   321 		if ( 'page' == $ptype->name )
       
   322 			wp_die( __('You are not allowed to edit pages.'));
       
   323 		else
       
   324 			wp_die( __('You are not allowed to edit posts.'));
       
   325 	}
       
   326 
       
   327 	if ( -1 == $post_data['_status'] ) {
       
   328 		$post_data['post_status'] = null;
       
   329 		unset($post_data['post_status']);
       
   330 	} else {
       
   331 		$post_data['post_status'] = $post_data['_status'];
       
   332 	}
       
   333 	unset($post_data['_status']);
       
   334 
       
   335 	$post_IDs = array_map( 'intval', (array) $post_data['post'] );
       
   336 
       
   337 	$reset = array(
       
   338 		'post_author', 'post_status', 'post_password',
       
   339 		'post_parent', 'page_template', 'comment_status',
       
   340 		'ping_status', 'keep_private', 'tax_input',
       
   341 		'post_category', 'sticky', 'post_format',
       
   342 	);
       
   343 
       
   344 	foreach ( $reset as $field ) {
       
   345 		if ( isset($post_data[$field]) && ( '' == $post_data[$field] || -1 == $post_data[$field] ) )
       
   346 			unset($post_data[$field]);
       
   347 	}
       
   348 
       
   349 	if ( isset($post_data['post_category']) ) {
       
   350 		if ( is_array($post_data['post_category']) && ! empty($post_data['post_category']) )
       
   351 			$new_cats = array_map( 'absint', $post_data['post_category'] );
       
   352 		else
       
   353 			unset($post_data['post_category']);
       
   354 	}
       
   355 
       
   356 	$tax_input = array();
       
   357 	if ( isset($post_data['tax_input'])) {
       
   358 		foreach ( $post_data['tax_input'] as $tax_name => $terms ) {
       
   359 			if ( empty($terms) )
       
   360 				continue;
       
   361 			if ( is_taxonomy_hierarchical( $tax_name ) ) {
       
   362 				$tax_input[ $tax_name ] = array_map( 'absint', $terms );
       
   363 			} else {
       
   364 				$comma = _x( ',', 'tag delimiter' );
       
   365 				if ( ',' !== $comma )
       
   366 					$terms = str_replace( $comma, ',', $terms );
       
   367 				$tax_input[ $tax_name ] = explode( ',', trim( $terms, " \n\t\r\0\x0B," ) );
       
   368 			}
       
   369 		}
       
   370 	}
       
   371 
       
   372 	if ( isset($post_data['post_parent']) && ($parent = (int) $post_data['post_parent']) ) {
       
   373 		$pages = $wpdb->get_results("SELECT ID, post_parent FROM $wpdb->posts WHERE post_type = 'page'");
       
   374 		$children = array();
       
   375 
       
   376 		for ( $i = 0; $i < 50 && $parent > 0; $i++ ) {
       
   377 			$children[] = $parent;
       
   378 
       
   379 			foreach ( $pages as $page ) {
       
   380 				if ( $page->ID == $parent ) {
       
   381 					$parent = $page->post_parent;
       
   382 					break;
       
   383 				}
       
   384 			}
       
   385 		}
       
   386 	}
       
   387 
       
   388 	$updated = $skipped = $locked = array();
       
   389 	foreach ( $post_IDs as $post_ID ) {
       
   390 		$post_type_object = get_post_type_object( get_post_type( $post_ID ) );
       
   391 
       
   392 		if ( !isset( $post_type_object ) || ( isset($children) && in_array($post_ID, $children) ) || !current_user_can( 'edit_post', $post_ID ) ) {
       
   393 			$skipped[] = $post_ID;
       
   394 			continue;
       
   395 		}
       
   396 
       
   397 		if ( wp_check_post_lock( $post_ID ) ) {
       
   398 			$locked[] = $post_ID;
       
   399 			continue;
       
   400 		}
       
   401 
       
   402 		$post = get_post( $post_ID );
       
   403 		$tax_names = get_object_taxonomies( $post );
       
   404 		foreach ( $tax_names as $tax_name ) {
       
   405 			$taxonomy_obj = get_taxonomy($tax_name);
       
   406 			if ( isset( $tax_input[$tax_name]) && current_user_can( $taxonomy_obj->cap->assign_terms ) )
       
   407 				$new_terms = $tax_input[$tax_name];
       
   408 			else
       
   409 				$new_terms = array();
       
   410 
       
   411 			if ( $taxonomy_obj->hierarchical )
       
   412 				$current_terms = (array) wp_get_object_terms( $post_ID, $tax_name, array('fields' => 'ids') );
       
   413 			else
       
   414 				$current_terms = (array) wp_get_object_terms( $post_ID, $tax_name, array('fields' => 'names') );
       
   415 
       
   416 			$post_data['tax_input'][$tax_name] = array_merge( $current_terms, $new_terms );
       
   417 		}
       
   418 
       
   419 		if ( isset($new_cats) && in_array( 'category', $tax_names ) ) {
       
   420 			$cats = (array) wp_get_post_categories($post_ID);
       
   421 			$post_data['post_category'] = array_unique( array_merge($cats, $new_cats) );
       
   422 			unset( $post_data['tax_input']['category'] );
       
   423 		}
       
   424 
       
   425 		$post_data['post_mime_type'] = $post->post_mime_type;
       
   426 		$post_data['guid'] = $post->guid;
       
   427 
       
   428 		$post_data['ID'] = $post_ID;
       
   429 		$updated[] = wp_update_post( $post_data );
       
   430 
       
   431 		if ( isset( $post_data['sticky'] ) && current_user_can( $ptype->cap->edit_others_posts ) ) {
       
   432 			if ( 'sticky' == $post_data['sticky'] )
       
   433 				stick_post( $post_ID );
       
   434 			else
       
   435 				unstick_post( $post_ID );
       
   436 		}
       
   437 
       
   438 		if ( isset( $post_data['post_format'] ) )
       
   439 			set_post_format( $post_ID, $post_data['post_format'] );
       
   440 	}
       
   441 
       
   442 	return array( 'updated' => $updated, 'skipped' => $skipped, 'locked' => $locked );
       
   443 }
       
   444 
       
   445 /**
       
   446  * Default post information to use when populating the "Write Post" form.
       
   447  *
       
   448  * @since 2.0.0
       
   449  *
       
   450  * @param string $post_type A post type string, defaults to 'post'.
       
   451  * @return WP_Post Post object containing all the default post data as attributes
       
   452  */
       
   453 function get_default_post_to_edit( $post_type = 'post', $create_in_db = false ) {
       
   454 	global $wpdb;
       
   455 
       
   456 	$post_title = '';
       
   457 	if ( !empty( $_REQUEST['post_title'] ) )
       
   458 		$post_title = esc_html( wp_unslash( $_REQUEST['post_title'] ));
       
   459 
       
   460 	$post_content = '';
       
   461 	if ( !empty( $_REQUEST['content'] ) )
       
   462 		$post_content = esc_html( wp_unslash( $_REQUEST['content'] ));
       
   463 
       
   464 	$post_excerpt = '';
       
   465 	if ( !empty( $_REQUEST['excerpt'] ) )
       
   466 		$post_excerpt = esc_html( wp_unslash( $_REQUEST['excerpt'] ));
       
   467 
       
   468 	if ( $create_in_db ) {
       
   469 		$post_id = wp_insert_post( array( 'post_title' => __( 'Auto Draft' ), 'post_type' => $post_type, 'post_status' => 'auto-draft' ) );
       
   470 		$post = get_post( $post_id );
       
   471 		if ( current_theme_supports( 'post-formats' ) && post_type_supports( $post->post_type, 'post-formats' ) && get_option( 'default_post_format' ) )
       
   472 			set_post_format( $post, get_option( 'default_post_format' ) );
       
   473 	} else {
       
   474 		$post = new stdClass;
       
   475 		$post->ID = 0;
       
   476 		$post->post_author = '';
       
   477 		$post->post_date = '';
       
   478 		$post->post_date_gmt = '';
       
   479 		$post->post_password = '';
       
   480 		$post->post_type = $post_type;
       
   481 		$post->post_status = 'draft';
       
   482 		$post->to_ping = '';
       
   483 		$post->pinged = '';
       
   484 		$post->comment_status = get_option( 'default_comment_status' );
       
   485 		$post->ping_status = get_option( 'default_ping_status' );
       
   486 		$post->post_pingback = get_option( 'default_pingback_flag' );
       
   487 		$post->post_category = get_option( 'default_category' );
       
   488 		$post->page_template = 'default';
       
   489 		$post->post_parent = 0;
       
   490 		$post->menu_order = 0;
       
   491 		$post = new WP_Post( $post );
       
   492 	}
       
   493 
       
   494 	$post->post_content = apply_filters( 'default_content', $post_content, $post );
       
   495 	$post->post_title   = apply_filters( 'default_title',   $post_title, $post   );
       
   496 	$post->post_excerpt = apply_filters( 'default_excerpt', $post_excerpt, $post );
       
   497 	$post->post_name = '';
       
   498 
       
   499 	return $post;
       
   500 }
       
   501 
       
   502 /**
       
   503  * Determine if a post exists based on title, content, and date
       
   504  *
       
   505  * @since 2.0.0
       
   506  *
       
   507  * @param string $title Post title
       
   508  * @param string $content Optional post content
       
   509  * @param string $date Optional post date
       
   510  * @return int Post ID if post exists, 0 otherwise.
       
   511  */
       
   512 function post_exists($title, $content = '', $date = '') {
       
   513 	global $wpdb;
       
   514 
       
   515 	$post_title = wp_unslash( sanitize_post_field( 'post_title', $title, 0, 'db' ) );
       
   516 	$post_content = wp_unslash( sanitize_post_field( 'post_content', $content, 0, 'db' ) );
       
   517 	$post_date = wp_unslash( sanitize_post_field( 'post_date', $date, 0, 'db' ) );
       
   518 
       
   519 	$query = "SELECT ID FROM $wpdb->posts WHERE 1=1";
       
   520 	$args = array();
       
   521 
       
   522 	if ( !empty ( $date ) ) {
       
   523 		$query .= ' AND post_date = %s';
       
   524 		$args[] = $post_date;
       
   525 	}
       
   526 
       
   527 	if ( !empty ( $title ) ) {
       
   528 		$query .= ' AND post_title = %s';
       
   529 		$args[] = $post_title;
       
   530 	}
       
   531 
       
   532 	if ( !empty ( $content ) ) {
       
   533 		$query .= 'AND post_content = %s';
       
   534 		$args[] = $post_content;
       
   535 	}
       
   536 
       
   537 	if ( !empty ( $args ) )
       
   538 		return (int) $wpdb->get_var( $wpdb->prepare($query, $args) );
       
   539 
       
   540 	return 0;
       
   541 }
       
   542 
       
   543 /**
       
   544  * Creates a new post from the "Write Post" form using $_POST information.
       
   545  *
       
   546  * @since 2.1.0
       
   547  *
       
   548  * @return unknown
       
   549  */
       
   550 function wp_write_post() {
       
   551 	if ( isset($_POST['post_type']) )
       
   552 		$ptype = get_post_type_object($_POST['post_type']);
       
   553 	else
       
   554 		$ptype = get_post_type_object('post');
       
   555 
       
   556 	if ( !current_user_can( $ptype->cap->edit_posts ) ) {
       
   557 		if ( 'page' == $ptype->name )
       
   558 			return new WP_Error( 'edit_pages', __( 'You are not allowed to create pages on this site.' ) );
       
   559 		else
       
   560 			return new WP_Error( 'edit_posts', __( 'You are not allowed to create posts or drafts on this site.' ) );
       
   561 	}
       
   562 
       
   563 	$_POST['post_mime_type'] = '';
       
   564 
       
   565 	// Clear out any data in internal vars.
       
   566 	unset( $_POST['filter'] );
       
   567 
       
   568 	// Edit don't write if we have a post id.
       
   569 	if ( isset( $_POST['post_ID'] ) )
       
   570 		return edit_post();
       
   571 
       
   572 	$translated = _wp_translate_postdata( false );
       
   573 	if ( is_wp_error($translated) )
       
   574 		return $translated;
       
   575 
       
   576 	if ( isset($_POST['visibility']) ) {
       
   577 		switch ( $_POST['visibility'] ) {
       
   578 			case 'public' :
       
   579 				$_POST['post_password'] = '';
       
   580 				break;
       
   581 			case 'password' :
       
   582 				unset( $_POST['sticky'] );
       
   583 				break;
       
   584 			case 'private' :
       
   585 				$_POST['post_status'] = 'private';
       
   586 				$_POST['post_password'] = '';
       
   587 				unset( $_POST['sticky'] );
       
   588 				break;
       
   589 		}
       
   590 	}
       
   591 
       
   592 	// Create the post.
       
   593 	$post_ID = wp_insert_post( $_POST );
       
   594 	if ( is_wp_error( $post_ID ) )
       
   595 		return $post_ID;
       
   596 
       
   597 	if ( empty($post_ID) )
       
   598 		return 0;
       
   599 
       
   600 	add_meta( $post_ID );
       
   601 
       
   602 	add_post_meta( $post_ID, '_edit_last', $GLOBALS['current_user']->ID );
       
   603 
       
   604 	// Now that we have an ID we can fix any attachment anchor hrefs
       
   605 	_fix_attachment_links( $post_ID );
       
   606 
       
   607 	wp_set_post_lock( $post_ID );
       
   608 
       
   609 	return $post_ID;
       
   610 }
       
   611 
       
   612 /**
       
   613  * Calls wp_write_post() and handles the errors.
       
   614  *
       
   615  * @since 2.0.0
       
   616 
       
   617  * @uses wp_write_post()
       
   618  * @uses is_wp_error()
       
   619  * @uses wp_die()
       
   620  * @return unknown
       
   621  */
       
   622 function write_post() {
       
   623 	$result = wp_write_post();
       
   624 	if ( is_wp_error( $result ) )
       
   625 		wp_die( $result->get_error_message() );
       
   626 	else
       
   627 		return $result;
       
   628 }
       
   629 
       
   630 //
       
   631 // Post Meta
       
   632 //
       
   633 
       
   634 /**
       
   635  * {@internal Missing Short Description}}
       
   636  *
       
   637  * @since 1.2.0
       
   638  *
       
   639  * @param unknown_type $post_ID
       
   640  * @return unknown
       
   641  */
       
   642 function add_meta( $post_ID ) {
       
   643 	global $wpdb;
       
   644 	$post_ID = (int) $post_ID;
       
   645 
       
   646 	$metakeyselect = isset($_POST['metakeyselect']) ? wp_unslash( trim( $_POST['metakeyselect'] ) ) : '';
       
   647 	$metakeyinput = isset($_POST['metakeyinput']) ? wp_unslash( trim( $_POST['metakeyinput'] ) ) : '';
       
   648 	$metavalue = isset($_POST['metavalue']) ? $_POST['metavalue'] : '';
       
   649 	if ( is_string( $metavalue ) )
       
   650 		$metavalue = trim( $metavalue );
       
   651 
       
   652 	if ( ('0' === $metavalue || ! empty ( $metavalue ) ) && ( ( ( '#NONE#' != $metakeyselect ) && !empty ( $metakeyselect) ) || !empty ( $metakeyinput ) ) ) {
       
   653 		// We have a key/value pair. If both the select and the
       
   654 		// input for the key have data, the input takes precedence:
       
   655 
       
   656  		if ( '#NONE#' != $metakeyselect )
       
   657 			$metakey = $metakeyselect;
       
   658 
       
   659 		if ( $metakeyinput )
       
   660 			$metakey = $metakeyinput; // default
       
   661 
       
   662 		if ( is_protected_meta( $metakey, 'post' ) || ! current_user_can( 'add_post_meta', $post_ID, $metakey ) )
       
   663 			return false;
       
   664 
       
   665 		$metakey = wp_slash( $metakey );
       
   666 
       
   667 		return add_post_meta( $post_ID, $metakey, $metavalue );
       
   668 	}
       
   669 
       
   670 	return false;
       
   671 } // add_meta
       
   672 
       
   673 /**
       
   674  * {@internal Missing Short Description}}
       
   675  *
       
   676  * @since 1.2.0
       
   677  *
       
   678  * @param unknown_type $mid
       
   679  * @return unknown
       
   680  */
       
   681 function delete_meta( $mid ) {
       
   682 	return delete_metadata_by_mid( 'post' , $mid );
       
   683 }
       
   684 
       
   685 /**
       
   686  * Get a list of previously defined keys.
       
   687  *
       
   688  * @since 1.2.0
       
   689  *
       
   690  * @return unknown
       
   691  */
       
   692 function get_meta_keys() {
       
   693 	global $wpdb;
       
   694 
       
   695 	$keys = $wpdb->get_col( "
       
   696 			SELECT meta_key
       
   697 			FROM $wpdb->postmeta
       
   698 			GROUP BY meta_key
       
   699 			ORDER BY meta_key" );
       
   700 
       
   701 	return $keys;
       
   702 }
       
   703 
       
   704 /**
       
   705  * {@internal Missing Short Description}}
       
   706  *
       
   707  * @since 2.1.0
       
   708  *
       
   709  * @param unknown_type $mid
       
   710  * @return unknown
       
   711  */
       
   712 function get_post_meta_by_id( $mid ) {
       
   713 	return get_metadata_by_mid( 'post', $mid );
       
   714 }
       
   715 
       
   716 /**
       
   717  * {@internal Missing Short Description}}
       
   718  *
       
   719  * Some postmeta stuff.
       
   720  *
       
   721  * @since 1.2.0
       
   722  *
       
   723  * @param unknown_type $postid
       
   724  * @return unknown
       
   725  */
       
   726 function has_meta( $postid ) {
       
   727 	global $wpdb;
       
   728 
       
   729 	return $wpdb->get_results( $wpdb->prepare("SELECT meta_key, meta_value, meta_id, post_id
       
   730 			FROM $wpdb->postmeta WHERE post_id = %d
       
   731 			ORDER BY meta_key,meta_id", $postid), ARRAY_A );
       
   732 }
       
   733 
       
   734 /**
       
   735  * {@internal Missing Short Description}}
       
   736  *
       
   737  * @since 1.2.0
       
   738  *
       
   739  * @param unknown_type $meta_id
       
   740  * @param unknown_type $meta_key Expect Slashed
       
   741  * @param unknown_type $meta_value Expect Slashed
       
   742  * @return unknown
       
   743  */
       
   744 function update_meta( $meta_id, $meta_key, $meta_value ) {
       
   745 	$meta_key = wp_unslash( $meta_key );
       
   746 	$meta_value = wp_unslash( $meta_value );
       
   747 
       
   748 	return update_metadata_by_mid( 'post', $meta_id, $meta_value, $meta_key );
       
   749 }
       
   750 
       
   751 //
       
   752 // Private
       
   753 //
       
   754 
       
   755 /**
       
   756  * Replace hrefs of attachment anchors with up-to-date permalinks.
       
   757  *
       
   758  * @since 2.3.0
       
   759  * @access private
       
   760  *
       
   761  * @param int|object $post Post ID or post object.
       
   762  * @return void|int|WP_Error Void if nothing fixed. 0 or WP_Error on update failure. The post ID on update success.
       
   763  */
       
   764 function _fix_attachment_links( $post ) {
       
   765 	$post = get_post( $post, ARRAY_A );
       
   766 	$content = $post['post_content'];
       
   767 
       
   768 	// Don't run if no pretty permalinks or post is not published, scheduled, or privately published.
       
   769 	if ( ! get_option( 'permalink_structure' ) || ! in_array( $post['post_status'], array( 'publish', 'future', 'private' ) ) )
       
   770 		return;
       
   771 
       
   772 	// Short if there aren't any links or no '?attachment_id=' strings (strpos cannot be zero)
       
   773 	if ( !strpos($content, '?attachment_id=') || !preg_match_all( '/<a ([^>]+)>[\s\S]+?<\/a>/', $content, $link_matches ) )
       
   774 		return;
       
   775 
       
   776 	$site_url = get_bloginfo('url');
       
   777 	$site_url = substr( $site_url, (int) strpos($site_url, '://') ); // remove the http(s)
       
   778 	$replace = '';
       
   779 
       
   780 	foreach ( $link_matches[1] as $key => $value ) {
       
   781 		if ( !strpos($value, '?attachment_id=') || !strpos($value, 'wp-att-')
       
   782 			|| !preg_match( '/href=(["\'])[^"\']*\?attachment_id=(\d+)[^"\']*\\1/', $value, $url_match )
       
   783 			|| !preg_match( '/rel=["\'][^"\']*wp-att-(\d+)/', $value, $rel_match ) )
       
   784 				continue;
       
   785 
       
   786 		$quote = $url_match[1]; // the quote (single or double)
       
   787 		$url_id = (int) $url_match[2];
       
   788 		$rel_id = (int) $rel_match[1];
       
   789 
       
   790 		if ( !$url_id || !$rel_id || $url_id != $rel_id || strpos($url_match[0], $site_url) === false )
       
   791 			continue;
       
   792 
       
   793 		$link = $link_matches[0][$key];
       
   794 		$replace = str_replace( $url_match[0], 'href=' . $quote . get_attachment_link( $url_id ) . $quote, $link );
       
   795 
       
   796 		$content = str_replace( $link, $replace, $content );
       
   797 	}
       
   798 
       
   799 	if ( $replace ) {
       
   800 		$post['post_content'] = $content;
       
   801 		// Escape data pulled from DB.
       
   802 		$post = add_magic_quotes($post);
       
   803 
       
   804 		return wp_update_post($post);
       
   805 	}
       
   806 }
       
   807 
       
   808 /**
       
   809  * Move child posts to a new parent.
       
   810  *
       
   811  * @since 2.3.0
       
   812  * @access private
       
   813  *
       
   814  * @param unknown_type $old_ID
       
   815  * @param unknown_type $new_ID
       
   816  * @return unknown
       
   817  */
       
   818 function _relocate_children( $old_ID, $new_ID ) {
       
   819 	global $wpdb;
       
   820 	$old_ID = (int) $old_ID;
       
   821 	$new_ID = (int) $new_ID;
       
   822 
       
   823 	$children = $wpdb->get_col( $wpdb->prepare("
       
   824 		SELECT post_id
       
   825 		FROM $wpdb->postmeta
       
   826 		WHERE meta_key = '_wp_attachment_temp_parent'
       
   827 		AND meta_value = %d", $old_ID) );
       
   828 
       
   829 	foreach ( $children as $child_id ) {
       
   830 		$wpdb->update($wpdb->posts, array('post_parent' => $new_ID), array('ID' => $child_id) );
       
   831 		delete_post_meta($child_id, '_wp_attachment_temp_parent');
       
   832 	}
       
   833 }
       
   834 
       
   835 /**
       
   836  * Get all the possible statuses for a post_type
       
   837  *
       
   838  * @since 2.5.0
       
   839  *
       
   840  * @param string $type The post_type you want the statuses for
       
   841  * @return array As array of all the statuses for the supplied post type
       
   842  */
       
   843 function get_available_post_statuses($type = 'post') {
       
   844 	$stati = wp_count_posts($type);
       
   845 
       
   846 	return array_keys(get_object_vars($stati));
       
   847 }
       
   848 
       
   849 /**
       
   850  * Run the wp query to fetch the posts for listing on the edit posts page
       
   851  *
       
   852  * @since 2.5.0
       
   853  *
       
   854  * @param array|bool $q Array of query variables to use to build the query or false to use $_GET superglobal.
       
   855  * @return array
       
   856  */
       
   857 function wp_edit_posts_query( $q = false ) {
       
   858 	if ( false === $q )
       
   859 		$q = $_GET;
       
   860 	$q['m'] = isset($q['m']) ? (int) $q['m'] : 0;
       
   861 	$q['cat'] = isset($q['cat']) ? (int) $q['cat'] : 0;
       
   862 	$post_stati  = get_post_stati();
       
   863 
       
   864 	if ( isset($q['post_type']) && in_array( $q['post_type'], get_post_types() ) )
       
   865 		$post_type = $q['post_type'];
       
   866 	else
       
   867 		$post_type = 'post';
       
   868 
       
   869 	$avail_post_stati = get_available_post_statuses($post_type);
       
   870 
       
   871 	if ( isset($q['post_status']) && in_array( $q['post_status'], $post_stati ) ) {
       
   872 		$post_status = $q['post_status'];
       
   873 		$perm = 'readable';
       
   874 	}
       
   875 
       
   876 	if ( isset($q['orderby']) )
       
   877 		$orderby = $q['orderby'];
       
   878 	elseif ( isset($q['post_status']) && in_array($q['post_status'], array('pending', 'draft')) )
       
   879 		$orderby = 'modified';
       
   880 
       
   881 	if ( isset($q['order']) )
       
   882 		$order = $q['order'];
       
   883 	elseif ( isset($q['post_status']) && 'pending' == $q['post_status'] )
       
   884 		$order = 'ASC';
       
   885 
       
   886 	$per_page = 'edit_' . $post_type . '_per_page';
       
   887 	$posts_per_page = (int) get_user_option( $per_page );
       
   888 	if ( empty( $posts_per_page ) || $posts_per_page < 1 )
       
   889 		$posts_per_page = 20;
       
   890 
       
   891 	$posts_per_page = apply_filters( $per_page, $posts_per_page );
       
   892 	$posts_per_page = apply_filters( 'edit_posts_per_page', $posts_per_page, $post_type );
       
   893 
       
   894 	$query = compact('post_type', 'post_status', 'perm', 'order', 'orderby', 'posts_per_page');
       
   895 
       
   896 	// Hierarchical types require special args.
       
   897 	if ( is_post_type_hierarchical( $post_type ) && !isset($orderby) ) {
       
   898 		$query['orderby'] = 'menu_order title';
       
   899 		$query['order'] = 'asc';
       
   900 		$query['posts_per_page'] = -1;
       
   901 		$query['posts_per_archive_page'] = -1;
       
   902 	}
       
   903 
       
   904 	if ( ! empty( $q['show_sticky'] ) )
       
   905 		$query['post__in'] = (array) get_option( 'sticky_posts' );
       
   906 
       
   907 	wp( $query );
       
   908 
       
   909 	return $avail_post_stati;
       
   910 }
       
   911 
       
   912 /**
       
   913  * {@internal Missing Short Description}}
       
   914  *
       
   915  * @since 2.5.0
       
   916  *
       
   917  * @param unknown_type $type
       
   918  * @return unknown
       
   919  */
       
   920 function get_available_post_mime_types($type = 'attachment') {
       
   921 	global $wpdb;
       
   922 
       
   923 	$types = $wpdb->get_col($wpdb->prepare("SELECT DISTINCT post_mime_type FROM $wpdb->posts WHERE post_type = %s", $type));
       
   924 	return $types;
       
   925 }
       
   926 
       
   927 /**
       
   928  * Executes a query for attachments. An array of WP_Query arguments
       
   929  * can be passed in, which will override the arguments set by this function.
       
   930  *
       
   931  * @since 2.5.0
       
   932  * @uses apply_filters() Calls 'upload_per_page' on posts_per_page argument
       
   933  *
       
   934  * @param array|bool $q Array of query variables to use to build the query or false to use $_GET superglobal.
       
   935  * @return array
       
   936  */
       
   937 function wp_edit_attachments_query( $q = false ) {
       
   938 	if ( false === $q )
       
   939 		$q = $_GET;
       
   940 
       
   941 	$q['m']   = isset( $q['m'] ) ? (int) $q['m'] : 0;
       
   942 	$q['cat'] = isset( $q['cat'] ) ? (int) $q['cat'] : 0;
       
   943 	$q['post_type'] = 'attachment';
       
   944 	$post_type = get_post_type_object( 'attachment' );
       
   945 	$states = 'inherit';
       
   946 	if ( current_user_can( $post_type->cap->read_private_posts ) )
       
   947 		$states .= ',private';
       
   948 
       
   949 	$q['post_status'] = isset( $q['status'] ) && 'trash' == $q['status'] ? 'trash' : $states;
       
   950 	$media_per_page = (int) get_user_option( 'upload_per_page' );
       
   951 	if ( empty( $media_per_page ) || $media_per_page < 1 )
       
   952 		$media_per_page = 20;
       
   953 	$q['posts_per_page'] = apply_filters( 'upload_per_page', $media_per_page );
       
   954 
       
   955 	$post_mime_types = get_post_mime_types();
       
   956 	$avail_post_mime_types = get_available_post_mime_types('attachment');
       
   957 
       
   958 	if ( isset($q['post_mime_type']) && !array_intersect( (array) $q['post_mime_type'], array_keys($post_mime_types) ) )
       
   959 		unset($q['post_mime_type']);
       
   960 
       
   961 	if ( isset($q['detached']) )
       
   962 		add_filter('posts_where', '_edit_attachments_query_helper');
       
   963 
       
   964 	wp( $q );
       
   965 
       
   966 	if ( isset($q['detached']) )
       
   967 		remove_filter('posts_where', '_edit_attachments_query_helper');
       
   968 
       
   969 	return array($post_mime_types, $avail_post_mime_types);
       
   970 }
       
   971 
       
   972 function _edit_attachments_query_helper($where) {
       
   973 	global $wpdb;
       
   974 	return $where .= " AND {$wpdb->posts}.post_parent < 1";
       
   975 }
       
   976 
       
   977 /**
       
   978  * Returns the list of classes to be used by a metabox
       
   979  *
       
   980  * @uses get_user_option()
       
   981  * @since 2.5.0
       
   982  *
       
   983  * @param unknown_type $id
       
   984  * @param unknown_type $page
       
   985  * @return unknown
       
   986  */
       
   987 function postbox_classes( $id, $page ) {
       
   988 	if ( isset( $_GET['edit'] ) && $_GET['edit'] == $id ) {
       
   989 		$classes = array( '' );
       
   990 	} elseif ( $closed = get_user_option('closedpostboxes_'.$page ) ) {
       
   991 		if ( !is_array( $closed ) ) {
       
   992 			$classes = array( '' );
       
   993 		} else {
       
   994 			$classes = in_array( $id, $closed ) ? array( 'closed' ) : array( '' );
       
   995 		}
       
   996 	} else {
       
   997 		$classes = array( '' );
       
   998 	}
       
   999 
       
  1000 	$classes = apply_filters( "postbox_classes_{$page}_{$id}", $classes );
       
  1001 	return implode( ' ', $classes );
       
  1002 }
       
  1003 
       
  1004 /**
       
  1005  * {@internal Missing Short Description}}
       
  1006  *
       
  1007  * @since 2.5.0
       
  1008  *
       
  1009  * @param int|object $id    Post ID or post object.
       
  1010  * @param string $title (optional) Title
       
  1011  * @param string $name (optional) Name
       
  1012  * @return array With two entries of type string
       
  1013  */
       
  1014 function get_sample_permalink($id, $title = null, $name = null) {
       
  1015 	$post = get_post( $id );
       
  1016 	if ( ! $post )
       
  1017 		return array( '', '' );
       
  1018 
       
  1019 	$ptype = get_post_type_object($post->post_type);
       
  1020 
       
  1021 	$original_status = $post->post_status;
       
  1022 	$original_date = $post->post_date;
       
  1023 	$original_name = $post->post_name;
       
  1024 
       
  1025 	// Hack: get_permalink() would return ugly permalink for drafts, so we will fake that our post is published.
       
  1026 	if ( in_array( $post->post_status, array( 'draft', 'pending' ) ) ) {
       
  1027 		$post->post_status = 'publish';
       
  1028 		$post->post_name = sanitize_title($post->post_name ? $post->post_name : $post->post_title, $post->ID);
       
  1029 	}
       
  1030 
       
  1031 	// If the user wants to set a new name -- override the current one
       
  1032 	// Note: if empty name is supplied -- use the title instead, see #6072
       
  1033 	if ( !is_null($name) )
       
  1034 		$post->post_name = sanitize_title($name ? $name : $title, $post->ID);
       
  1035 
       
  1036 	$post->post_name = wp_unique_post_slug($post->post_name, $post->ID, $post->post_status, $post->post_type, $post->post_parent);
       
  1037 
       
  1038 	$post->filter = 'sample';
       
  1039 
       
  1040 	$permalink = get_permalink($post, true);
       
  1041 
       
  1042 	// Replace custom post_type Token with generic pagename token for ease of use.
       
  1043 	$permalink = str_replace("%$post->post_type%", '%pagename%', $permalink);
       
  1044 
       
  1045 	// Handle page hierarchy
       
  1046 	if ( $ptype->hierarchical ) {
       
  1047 		$uri = get_page_uri($post);
       
  1048 		$uri = untrailingslashit($uri);
       
  1049 		$uri = strrev( stristr( strrev( $uri ), '/' ) );
       
  1050 		$uri = untrailingslashit($uri);
       
  1051 		$uri = apply_filters( 'editable_slug', $uri );
       
  1052 		if ( !empty($uri) )
       
  1053 			$uri .= '/';
       
  1054 		$permalink = str_replace('%pagename%', "{$uri}%pagename%", $permalink);
       
  1055 	}
       
  1056 
       
  1057 	$permalink = array($permalink, apply_filters('editable_slug', $post->post_name));
       
  1058 	$post->post_status = $original_status;
       
  1059 	$post->post_date = $original_date;
       
  1060 	$post->post_name = $original_name;
       
  1061 	unset($post->filter);
       
  1062 
       
  1063 	return $permalink;
       
  1064 }
       
  1065 
       
  1066 /**
       
  1067  * Returns the HTML of the sample permalink slug editor.
       
  1068  *
       
  1069  * @since 2.5.0
       
  1070  *
       
  1071  * @param int|object $id Post ID or post object.
       
  1072  * @param string $new_title Optional. New title.
       
  1073  * @param string $new_slug Optional. New slug.
       
  1074  * @return string The HTML of the sample permalink slug editor.
       
  1075  */
       
  1076 function get_sample_permalink_html( $id, $new_title = null, $new_slug = null ) {
       
  1077 	$post = get_post( $id );
       
  1078 	if ( ! $post )
       
  1079 		return '';
       
  1080 
       
  1081 	list($permalink, $post_name) = get_sample_permalink($post->ID, $new_title, $new_slug);
       
  1082 
       
  1083 	if ( 'publish' == get_post_status( $post ) ) {
       
  1084 		$ptype = get_post_type_object($post->post_type);
       
  1085 		$view_post = $ptype->labels->view_item;
       
  1086 		$title = __('Click to edit this part of the permalink');
       
  1087 	} else {
       
  1088 		$title = __('Temporary permalink. Click to edit this part.');
       
  1089 	}
       
  1090 
       
  1091 	if ( false === strpos($permalink, '%postname%') && false === strpos($permalink, '%pagename%') ) {
       
  1092 		$return = '<strong>' . __('Permalink:') . "</strong>\n" . '<span id="sample-permalink" tabindex="-1">' . $permalink . "</span>\n";
       
  1093 		if ( '' == get_option( 'permalink_structure' ) && current_user_can( 'manage_options' ) && !( 'page' == get_option('show_on_front') && $id == get_option('page_on_front') ) )
       
  1094 			$return .= '<span id="change-permalinks"><a href="options-permalink.php" class="button button-small" target="_blank">' . __('Change Permalinks') . "</a></span>\n";
       
  1095 		if ( isset( $view_post ) )
       
  1096 			$return .= "<span id='view-post-btn'><a href='$permalink' class='button button-small'>$view_post</a></span>\n";
       
  1097 
       
  1098 		$return = apply_filters('get_sample_permalink_html', $return, $id, $new_title, $new_slug);
       
  1099 
       
  1100 		return $return;
       
  1101 	}
       
  1102 
       
  1103 	if ( function_exists('mb_strlen') ) {
       
  1104 		if ( mb_strlen($post_name) > 30 ) {
       
  1105 			$post_name_abridged = mb_substr($post_name, 0, 14). '&hellip;' . mb_substr($post_name, -14);
       
  1106 		} else {
       
  1107 			$post_name_abridged = $post_name;
       
  1108 		}
       
  1109 	} else {
       
  1110 		if ( strlen($post_name) > 30 ) {
       
  1111 			$post_name_abridged = substr($post_name, 0, 14). '&hellip;' . substr($post_name, -14);
       
  1112 		} else {
       
  1113 			$post_name_abridged = $post_name;
       
  1114 		}
       
  1115 	}
       
  1116 
       
  1117 	$post_name_html = '<span id="editable-post-name" title="' . $title . '">' . $post_name_abridged . '</span>';
       
  1118 	$display_link = str_replace(array('%pagename%','%postname%'), $post_name_html, $permalink);
       
  1119 	$view_link = str_replace(array('%pagename%','%postname%'), $post_name, $permalink);
       
  1120 	$return =  '<strong>' . __('Permalink:') . "</strong>\n";
       
  1121 	$return .= '<span id="sample-permalink" tabindex="-1">' . $display_link . "</span>\n";
       
  1122 	$return .= '&lrm;'; // Fix bi-directional text display defect in RTL languages.
       
  1123 	$return .= '<span id="edit-slug-buttons"><a href="#post_name" class="edit-slug button button-small hide-if-no-js" onclick="editPermalink(' . $id . '); return false;">' . __('Edit') . "</a></span>\n";
       
  1124 	$return .= '<span id="editable-post-name-full">' . $post_name . "</span>\n";
       
  1125 	if ( isset($view_post) )
       
  1126 		$return .= "<span id='view-post-btn'><a href='$view_link' class='button button-small'>$view_post</a></span>\n";
       
  1127 
       
  1128 	$return = apply_filters('get_sample_permalink_html', $return, $id, $new_title, $new_slug);
       
  1129 
       
  1130 	return $return;
       
  1131 }
       
  1132 
       
  1133 /**
       
  1134  * Output HTML for the post thumbnail meta-box.
       
  1135  *
       
  1136  * @since 2.9.0
       
  1137  *
       
  1138  * @param int $thumbnail_id ID of the attachment used for thumbnail
       
  1139  * @param mixed $post The post ID or object associated with the thumbnail, defaults to global $post.
       
  1140  * @return string html
       
  1141  */
       
  1142 function _wp_post_thumbnail_html( $thumbnail_id = null, $post = null ) {
       
  1143 	global $content_width, $_wp_additional_image_sizes;
       
  1144 
       
  1145 	$post = get_post( $post );
       
  1146 
       
  1147 	$upload_iframe_src = esc_url( get_upload_iframe_src('image', $post->ID ) );
       
  1148 	$set_thumbnail_link = '<p class="hide-if-no-js"><a title="' . esc_attr__( 'Set featured image' ) . '" href="%s" id="set-post-thumbnail" class="thickbox">%s</a></p>';
       
  1149 	$content = sprintf( $set_thumbnail_link, $upload_iframe_src, esc_html__( 'Set featured image' ) );
       
  1150 
       
  1151 	if ( $thumbnail_id && get_post( $thumbnail_id ) ) {
       
  1152 		$old_content_width = $content_width;
       
  1153 		$content_width = 266;
       
  1154 		if ( !isset( $_wp_additional_image_sizes['post-thumbnail'] ) )
       
  1155 			$thumbnail_html = wp_get_attachment_image( $thumbnail_id, array( $content_width, $content_width ) );
       
  1156 		else
       
  1157 			$thumbnail_html = wp_get_attachment_image( $thumbnail_id, 'post-thumbnail' );
       
  1158 		if ( !empty( $thumbnail_html ) ) {
       
  1159 			$ajax_nonce = wp_create_nonce( 'set_post_thumbnail-' . $post->ID );
       
  1160 			$content = sprintf( $set_thumbnail_link, $upload_iframe_src, $thumbnail_html );
       
  1161 			$content .= '<p class="hide-if-no-js"><a href="#" id="remove-post-thumbnail" onclick="WPRemoveThumbnail(\'' . $ajax_nonce . '\');return false;">' . esc_html__( 'Remove featured image' ) . '</a></p>';
       
  1162 		}
       
  1163 		$content_width = $old_content_width;
       
  1164 	}
       
  1165 
       
  1166 	return apply_filters( 'admin_post_thumbnail_html', $content, $post->ID );
       
  1167 }
       
  1168 
       
  1169 /**
       
  1170  * Check to see if the post is currently being edited by another user.
       
  1171  *
       
  1172  * @since 2.5.0
       
  1173  *
       
  1174  * @param int $post_id ID of the post to check for editing
       
  1175  * @return bool|int False: not locked or locked by current user. Int: user ID of user with lock.
       
  1176  */
       
  1177 function wp_check_post_lock( $post_id ) {
       
  1178 	if ( !$post = get_post( $post_id ) )
       
  1179 		return false;
       
  1180 
       
  1181 	if ( !$lock = get_post_meta( $post->ID, '_edit_lock', true ) )
       
  1182 		return false;
       
  1183 
       
  1184 	$lock = explode( ':', $lock );
       
  1185 	$time = $lock[0];
       
  1186 	$user = isset( $lock[1] ) ? $lock[1] : get_post_meta( $post->ID, '_edit_last', true );
       
  1187 
       
  1188 	$time_window = apply_filters( 'wp_check_post_lock_window', 120 );
       
  1189 
       
  1190 	if ( $time && $time > time() - $time_window && $user != get_current_user_id() )
       
  1191 		return $user;
       
  1192 	return false;
       
  1193 }
       
  1194 
       
  1195 /**
       
  1196  * Mark the post as currently being edited by the current user
       
  1197  *
       
  1198  * @since 2.5.0
       
  1199  *
       
  1200  * @param int $post_id ID of the post to being edited
       
  1201  * @return bool|array Returns false if the post doesn't exist of there is no current user, or
       
  1202  * 	an array of the lock time and the user ID.
       
  1203  */
       
  1204 function wp_set_post_lock( $post_id ) {
       
  1205 	if ( !$post = get_post( $post_id ) )
       
  1206 		return false;
       
  1207 	if ( 0 == ($user_id = get_current_user_id()) )
       
  1208 		return false;
       
  1209 
       
  1210 	$now = time();
       
  1211 	$lock = "$now:$user_id";
       
  1212 
       
  1213 	update_post_meta( $post->ID, '_edit_lock', $lock );
       
  1214 	return array( $now, $user_id );
       
  1215 }
       
  1216 
       
  1217 /**
       
  1218  * Outputs the HTML for the notice to say that someone else is editing or has taken over editing of this post.
       
  1219  *
       
  1220  * @since 2.8.5
       
  1221  * @return none
       
  1222  */
       
  1223 function _admin_notice_post_locked() {
       
  1224 	if ( ! $post = get_post() )
       
  1225 		return;
       
  1226 
       
  1227 	$user = null;
       
  1228 	if (  $user_id = wp_check_post_lock( $post->ID ) )
       
  1229 		$user = get_userdata( $user_id );
       
  1230 
       
  1231 	if ( $user ) {
       
  1232 		if ( ! apply_filters( 'show_post_locked_dialog', true, $post, $user ) )
       
  1233 			return;
       
  1234 
       
  1235 		$locked = true;
       
  1236 	} else {
       
  1237 		$locked = false;
       
  1238 	}
       
  1239 
       
  1240 	if ( $locked && ( $sendback = wp_get_referer() ) &&
       
  1241 		false === strpos( $sendback, 'post.php' ) && false === strpos( $sendback, 'post-new.php' ) ) {
       
  1242 
       
  1243 		$sendback_text = __('Go back');
       
  1244 	} else {
       
  1245 		$sendback = admin_url( 'edit.php' );
       
  1246 
       
  1247 		if ( 'post' != $post->post_type )
       
  1248 			$sendback = add_query_arg( 'post_type', $post->post_type, $sendback );
       
  1249 
       
  1250 		$sendback_text = get_post_type_object( $post->post_type )->labels->all_items;
       
  1251 	}
       
  1252 
       
  1253 	$hidden = $locked ? '' : ' hidden';
       
  1254 
       
  1255 	?>
       
  1256 	<div id="post-lock-dialog" class="notification-dialog-wrap<?php echo $hidden; ?>">
       
  1257 	<div class="notification-dialog-background"></div>
       
  1258 	<div class="notification-dialog">
       
  1259 	<?php
       
  1260 
       
  1261 	if ( $locked ) {
       
  1262 		if ( get_post_type_object( $post->post_type )->public ) {
       
  1263 			$preview_link = set_url_scheme( add_query_arg( 'preview', 'true', get_permalink( $post->ID ) ) );
       
  1264 
       
  1265 			if ( 'publish' == $post->post_status || $user->ID != $post->post_author ) {
       
  1266 				// Latest content is in autosave
       
  1267 				$nonce = wp_create_nonce( 'post_preview_' . $post->ID );
       
  1268 				$preview_link = add_query_arg( array( 'preview_id' => $post->ID, 'preview_nonce' => $nonce ), $preview_link );
       
  1269 			}
       
  1270 		} else {
       
  1271 			$preview_link = '';
       
  1272 		}
       
  1273 
       
  1274 		$preview_link = apply_filters( 'preview_post_link', $preview_link );
       
  1275 		$override = apply_filters( 'override_post_lock', true, $post, $user );
       
  1276 		$tab_last = $override ? '' : ' wp-tab-last';
       
  1277 
       
  1278 		?>
       
  1279 		<div class="post-locked-message">
       
  1280 		<div class="post-locked-avatar"><?php echo get_avatar( $user->ID, 64 ); ?></div>
       
  1281 		<p class="currently-editing wp-tab-first" tabindex="0">
       
  1282 		<?php
       
  1283 			_e( 'This content is currently locked.' );
       
  1284 			if ( $override )
       
  1285 				printf( ' ' . __( 'If you take over, %s will be blocked from continuing to edit.' ), esc_html( $user->display_name ) );
       
  1286 		?>
       
  1287 		</p>
       
  1288 		<?php do_action( 'post_locked_dialog', $post ); ?>
       
  1289 		<p>
       
  1290 		<a class="button" href="<?php echo esc_url( $sendback ); ?>"><?php echo $sendback_text; ?></a>
       
  1291 		<?php if ( $preview_link ) { ?>
       
  1292 		<a class="button<?php echo $tab_last; ?>" href="<?php echo esc_url( $preview_link ); ?>"><?php _e('Preview'); ?></a>
       
  1293 		<?php
       
  1294 		}
       
  1295 
       
  1296 		// Allow plugins to prevent some users overriding the post lock
       
  1297 		if ( $override ) {
       
  1298 			?>
       
  1299 			<a class="button button-primary wp-tab-last" href="<?php echo esc_url( add_query_arg( 'get-post-lock', '1', get_edit_post_link( $post->ID, 'url' ) ) ); ?>"><?php _e('Take over'); ?></a>
       
  1300 			<?php
       
  1301 		}
       
  1302 
       
  1303 		?>
       
  1304 		</p>
       
  1305 		</div>
       
  1306 		<?php
       
  1307 	} else {
       
  1308 		?>
       
  1309 		<div class="post-taken-over">
       
  1310 			<div class="post-locked-avatar"></div>
       
  1311 			<p class="wp-tab-first" tabindex="0">
       
  1312 			<span class="currently-editing"></span><br>
       
  1313 			<span class="locked-saving hidden"><img src="images/wpspin_light-2x.gif" width="16" height="16" /> <?php _e('Saving revision...'); ?></span>
       
  1314 			<span class="locked-saved hidden"><?php _e('Your latest changes were saved as a revision.'); ?></span>
       
  1315 			</p>
       
  1316 			<?php do_action( 'post_lock_lost_dialog', $post ); ?>
       
  1317 			<p><a class="button button-primary wp-tab-last" href="<?php echo esc_url( $sendback ); ?>"><?php echo $sendback_text; ?></a></p>
       
  1318 		</div>
       
  1319 		<?php
       
  1320 	}
       
  1321 
       
  1322 	?>
       
  1323 	</div>
       
  1324 	</div>
       
  1325 	<?php
       
  1326 }
       
  1327 
       
  1328 /**
       
  1329  * Creates autosave data for the specified post from $_POST data.
       
  1330  *
       
  1331  * @package WordPress
       
  1332  * @subpackage Post_Revisions
       
  1333  * @since 2.6.0
       
  1334  *
       
  1335  * @uses _wp_translate_postdata()
       
  1336  * @uses _wp_post_revision_fields()
       
  1337  *
       
  1338  * @return unknown
       
  1339  */
       
  1340 function wp_create_post_autosave( $post_id ) {
       
  1341 	$translated = _wp_translate_postdata( true );
       
  1342 	if ( is_wp_error( $translated ) )
       
  1343 		return $translated;
       
  1344 
       
  1345 	$post_author = get_current_user_id();
       
  1346 
       
  1347 	// Store one autosave per author. If there is already an autosave, overwrite it.
       
  1348 	if ( $old_autosave = wp_get_post_autosave( $post_id, $post_author ) ) {
       
  1349 		$new_autosave = _wp_post_revision_fields( $_POST, true );
       
  1350 		$new_autosave['ID'] = $old_autosave->ID;
       
  1351 		$new_autosave['post_author'] = $post_author;
       
  1352 
       
  1353 		// If the new autosave is the same content as the post, delete the old autosave.
       
  1354 		$post = get_post( $post_id );
       
  1355 		$autosave_is_different = false;
       
  1356 		foreach ( array_keys( _wp_post_revision_fields() ) as $field ) {
       
  1357 			if ( normalize_whitespace( $new_autosave[ $field ] ) != normalize_whitespace( $post->$field ) ) {
       
  1358 				$autosave_is_different = true;
       
  1359 				break;
       
  1360 			}
       
  1361 		}
       
  1362 
       
  1363 		if ( ! $autosave_is_different ) {
       
  1364 			wp_delete_post_revision( $old_autosave->ID );
       
  1365 			return;
       
  1366 		}
       
  1367 
       
  1368 		return wp_update_post( $new_autosave );
       
  1369 	}
       
  1370 
       
  1371 	// _wp_put_post_revision() expects unescaped.
       
  1372 	$post_data = wp_unslash( $_POST );
       
  1373 
       
  1374 	// Otherwise create the new autosave as a special post revision
       
  1375 	return _wp_put_post_revision( $post_data, true );
       
  1376 }
       
  1377 
       
  1378 /**
       
  1379  * Save draft or manually autosave for showing preview.
       
  1380  *
       
  1381  * @package WordPress
       
  1382  * @since 2.7.0
       
  1383  *
       
  1384  * @uses get_post_status()
       
  1385  * @uses edit_post()
       
  1386  * @uses get_post()
       
  1387  * @uses current_user_can()
       
  1388  * @uses wp_die()
       
  1389  * @uses wp_create_post_autosave()
       
  1390  * @uses add_query_arg()
       
  1391  * @uses wp_create_nonce()
       
  1392  *
       
  1393  * @return str URL to redirect to show the preview
       
  1394  */
       
  1395 function post_preview() {
       
  1396 
       
  1397 	$post_ID = (int) $_POST['post_ID'];
       
  1398 	$status = get_post_status( $post_ID );
       
  1399 	if ( 'auto-draft' == $status )
       
  1400 		wp_die( __('Preview not available. Please save as a draft first.') );
       
  1401 
       
  1402 	if ( isset($_POST['catslist']) )
       
  1403 		$_POST['post_category'] = explode(",", $_POST['catslist']);
       
  1404 
       
  1405 	if ( isset($_POST['tags_input']) )
       
  1406 		$_POST['tags_input'] = explode(",", $_POST['tags_input']);
       
  1407 
       
  1408 	if ( $_POST['post_type'] == 'page' || empty($_POST['post_category']) )
       
  1409 		unset($_POST['post_category']);
       
  1410 
       
  1411 	$_POST['ID'] = $post_ID;
       
  1412 	$post = get_post($post_ID);
       
  1413 
       
  1414 	if ( 'page' == $post->post_type ) {
       
  1415 		if ( ! current_user_can('edit_page', $post_ID) )
       
  1416 			wp_die( __('You are not allowed to edit this page.') );
       
  1417 	} else {
       
  1418 		if ( ! current_user_can('edit_post', $post_ID) )
       
  1419 			wp_die( __('You are not allowed to edit this post.') );
       
  1420 	}
       
  1421 
       
  1422 	$user_id = get_current_user_id();
       
  1423 	$locked = wp_check_post_lock( $post->ID );
       
  1424 	if ( ! $locked && 'draft' == $post->post_status && $user_id == $post->post_author ) {
       
  1425 		$id = edit_post();
       
  1426 	} else { // Non drafts are not overwritten. The autosave is stored in a special post revision.
       
  1427 		$id = wp_create_post_autosave( $post->ID );
       
  1428 		if ( ! is_wp_error($id) )
       
  1429 			$id = $post->ID;
       
  1430 	}
       
  1431 
       
  1432 	if ( is_wp_error($id) )
       
  1433 		wp_die( $id->get_error_message() );
       
  1434 
       
  1435 	if ( ! $locked && $_POST['post_status'] == 'draft' && $user_id == $post->post_author ) {
       
  1436 		$url = add_query_arg( 'preview', 'true', get_permalink($id) );
       
  1437 	} else {
       
  1438 		$nonce = wp_create_nonce('post_preview_' . $id);
       
  1439 		$args = array(
       
  1440 			'preview' => 'true',
       
  1441 			'preview_id' => $id,
       
  1442 			'preview_nonce' => $nonce,
       
  1443 		);
       
  1444 
       
  1445 		if ( isset( $_POST['post_format'] ) )
       
  1446 			$args['post_format'] = empty( $_POST['post_format'] ) ? 'standard' : sanitize_key( $_POST['post_format'] );
       
  1447 
       
  1448 		$url = add_query_arg( $args, get_permalink($id) );
       
  1449 	}
       
  1450 
       
  1451 	return apply_filters( 'preview_post_link', $url );
       
  1452 }