WordPress/wp-admin/includes/misc.php

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<?php
/**
* Misc WordPress Administration API.
*
* @package WordPress
* @subpackage Administration
*/
/**
* {@internal Missing Short Description}}
*
* @since 2.0.0
*
* @return unknown
*/
function got_mod_rewrite() {
$got_rewrite = apache_mod_loaded('mod_rewrite', true);
return apply_filters('got_rewrite', $got_rewrite);
}
/**
* {@internal Missing Short Description}}
*
* @since 1.5.0
*
* @param unknown_type $filename
* @param unknown_type $marker
* @return array An array of strings from a file (.htaccess ) from between BEGIN and END markers.
*/
function extract_from_markers( $filename, $marker ) {
$result = array ();
if (!file_exists( $filename ) ) {
return $result;
}
if ( $markerdata = explode( "\n", implode( '', file( $filename ) ) ));
{
$state = false;
foreach ( $markerdata as $markerline ) {
if (strpos($markerline, '# END ' . $marker) !== false)
$state = false;
if ( $state )
$result[] = $markerline;
if (strpos($markerline, '# BEGIN ' . $marker) !== false)
$state = true;
}
}
return $result;
}
/**
* {@internal Missing Short Description}}
*
* Inserts an array of strings into a file (.htaccess ), placing it between
* BEGIN and END markers. Replaces existing marked info. Retains surrounding
* data. Creates file if none exists.
*
* @since 1.5.0
*
* @param unknown_type $filename
* @param unknown_type $marker
* @param unknown_type $insertion
* @return bool True on write success, false on failure.
*/
function insert_with_markers( $filename, $marker, $insertion ) {
if (!file_exists( $filename ) || is_writeable( $filename ) ) {
if (!file_exists( $filename ) ) {
$markerdata = '';
} else {
$markerdata = explode( "\n", implode( '', file( $filename ) ) );
}
if ( !$f = @fopen( $filename, 'w' ) )
return false;
$foundit = false;
if ( $markerdata ) {
$state = true;
foreach ( $markerdata as $n => $markerline ) {
if (strpos($markerline, '# BEGIN ' . $marker) !== false)
$state = false;
if ( $state ) {
if ( $n + 1 < count( $markerdata ) )
fwrite( $f, "{$markerline}\n" );
else
fwrite( $f, "{$markerline}" );
}
if (strpos($markerline, '# END ' . $marker) !== false) {
fwrite( $f, "# BEGIN {$marker}\n" );
if ( is_array( $insertion ))
foreach ( $insertion as $insertline )
fwrite( $f, "{$insertline}\n" );
fwrite( $f, "# END {$marker}\n" );
$state = true;
$foundit = true;
}
}
}
if (!$foundit) {
fwrite( $f, "\n# BEGIN {$marker}\n" );
foreach ( $insertion as $insertline )
fwrite( $f, "{$insertline}\n" );
fwrite( $f, "# END {$marker}\n" );
}
fclose( $f );
return true;
} else {
return false;
}
}
/**
* Updates the htaccess file with the current rules if it is writable.
*
* Always writes to the file if it exists and is writable to ensure that we
* blank out old rules.
*
* @since 1.5.0
*/
function save_mod_rewrite_rules() {
if ( is_multisite() )
return;
global $wp_rewrite;
$home_path = get_home_path();
$htaccess_file = $home_path.'.htaccess';
// If the file doesn't already exist check for write access to the directory and whether we have some rules.
// else check for write access to the file.
if ((!file_exists($htaccess_file) && is_writable($home_path) && $wp_rewrite->using_mod_rewrite_permalinks()) || is_writable($htaccess_file)) {
if ( got_mod_rewrite() ) {
$rules = explode( "\n", $wp_rewrite->mod_rewrite_rules() );
return insert_with_markers( $htaccess_file, 'WordPress', $rules );
}
}
return false;
}
/**
* Updates the IIS web.config file with the current rules if it is writable.
* If the permalinks do not require rewrite rules then the rules are deleted from the web.config file.
*
* @since 2.8.0
*
* @return bool True if web.config was updated successfully
*/
function iis7_save_url_rewrite_rules(){
if ( is_multisite() )
return;
global $wp_rewrite;
$home_path = get_home_path();
$web_config_file = $home_path . 'web.config';
// Using win_is_writable() instead of is_writable() because of a bug in Windows PHP
if ( iis7_supports_permalinks() && ( ( ! file_exists($web_config_file) && win_is_writable($home_path) && $wp_rewrite->using_mod_rewrite_permalinks() ) || win_is_writable($web_config_file) ) ) {
$rule = $wp_rewrite->iis7_url_rewrite_rules(false, '', '');
if ( ! empty($rule) ) {
return iis7_add_rewrite_rule($web_config_file, $rule);
} else {
return iis7_delete_rewrite_rule($web_config_file);
}
}
return false;
}
/**
* {@internal Missing Short Description}}
*
* @since 1.5.0
*
* @param unknown_type $file
*/
function update_recently_edited( $file ) {
$oldfiles = (array ) get_option( 'recently_edited' );
if ( $oldfiles ) {
$oldfiles = array_reverse( $oldfiles );
$oldfiles[] = $file;
$oldfiles = array_reverse( $oldfiles );
$oldfiles = array_unique( $oldfiles );
if ( 5 < count( $oldfiles ))
array_pop( $oldfiles );
} else {
$oldfiles[] = $file;
}
update_option( 'recently_edited', $oldfiles );
}
/**
* If siteurl, home or page_on_front changed, flush rewrite rules.
*
* @since 2.1.0
*
* @param string $old_value
* @param string $value
*/
function update_home_siteurl( $old_value, $value ) {
if ( defined( "WP_INSTALLING" ) )
return;
// If home changed, write rewrite rules to new location.
flush_rewrite_rules();
}
add_action( 'update_option_home', 'update_home_siteurl', 10, 2 );
add_action( 'update_option_siteurl', 'update_home_siteurl', 10, 2 );
add_action( 'update_option_page_on_front', 'update_home_siteurl', 10, 2 );
/**
* Shorten an URL, to be used as link text
*
* @since 1.2.1
*
* @param string $url
* @return string
*/
function url_shorten( $url ) {
Change all core API to expect unslashed rather than slashed arguments. The exceptions to this are update_post_meta() and add_post_meta() which are often used by plugins in POST handlers and will continue accepting slashed data for now. Introduce wp_upate_post_meta() and wp_add_post_meta() as unslashed alternatives to update_post_meta() and add_post_meta(). These functions could become methods in WP_Post so don't use them too heavily yet. Remove all escape() calls from wp_xmlrpc_server. Now that core expects unslashed data this is no longer needed. Remove addslashes(), addslashes_gpc(), add_magic_quotes() calls on data being prepared for handoff to core functions that until now expected slashed data. Adding slashes in no longer necessary. Introduce wp_unslash() and use to it remove slashes from GPCS data before using it in core API. Almost every instance of stripslashes() in core should now be wp_unslash(). In the future (a release or three) when GPCS is no longer slashed, wp_unslash() will stop stripping slashes and simply return what is passed. At this point wp_unslash() calls can be removed from core. Introduce wp_slash() for slashing GPCS data. This will also turn into a noop once GPCS is no longer slashed. wp_slash() should almost never be used. It is mainly of use in unit tests. Plugins should use wp_unslash() on data being passed to core API. Plugins should no longer slash data being passed to core. So when you get_post() and then wp_insert_post() the post data from get_post() no longer needs addslashes(). Most plugins were not bothering with this. They will magically start doing the right thing. Unfortunately, those few souls who did it properly will now have to avoid calling addslashes() for 3.6 and newer. Use wp_kses_post() and wp_kses_data(), which expect unslashed data, instead of wp_filter_post_kses() and wp_filter_kses(), which expect slashed data. Filters are no longer passed slashed data. Remove many no longer necessary calls to $wpdb->escape() and esc_sql(). In wp_get_referer() and wp_get_original_referer(), return unslashed data. Remove old stripslashes() calls from WP_Widget::update() handlers. These haven't been necessary since WP_Widget. Switch several queries over to prepare(). Expect something to break. Props alexkingorg see #21767 git-svn-id: http://core.svn.wordpress.org/trunk@23416 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2013-02-14 23:51:06 +01:00
$short_url = str_replace( 'http://', '', $url );
$short_url = str_replace( 'www.', '', $short_url );
$short_url = untrailingslashit( $short_url );
if ( strlen( $short_url ) > 35 )
$short_url = substr( $short_url, 0, 32 ) . '...';
return $short_url;
}
/**
* Resets global variables based on $_GET and $_POST
*
* This function resets global variables based on the names passed
* in the $vars array to the value of $_POST[$var] or $_GET[$var] or ''
* if neither is defined.
*
* @since 2.0.0
*
* @param array $vars An array of globals to reset.
*/
function wp_reset_vars( $vars ) {
for ( $i=0; $i<count( $vars ); $i += 1 ) {
$var = $vars[$i];
global $$var;
if ( empty( $_POST[$var] ) ) {
if ( empty( $_GET[$var] ) )
$$var = '';
else
Change all core API to expect unslashed rather than slashed arguments. The exceptions to this are update_post_meta() and add_post_meta() which are often used by plugins in POST handlers and will continue accepting slashed data for now. Introduce wp_upate_post_meta() and wp_add_post_meta() as unslashed alternatives to update_post_meta() and add_post_meta(). These functions could become methods in WP_Post so don't use them too heavily yet. Remove all escape() calls from wp_xmlrpc_server. Now that core expects unslashed data this is no longer needed. Remove addslashes(), addslashes_gpc(), add_magic_quotes() calls on data being prepared for handoff to core functions that until now expected slashed data. Adding slashes in no longer necessary. Introduce wp_unslash() and use to it remove slashes from GPCS data before using it in core API. Almost every instance of stripslashes() in core should now be wp_unslash(). In the future (a release or three) when GPCS is no longer slashed, wp_unslash() will stop stripping slashes and simply return what is passed. At this point wp_unslash() calls can be removed from core. Introduce wp_slash() for slashing GPCS data. This will also turn into a noop once GPCS is no longer slashed. wp_slash() should almost never be used. It is mainly of use in unit tests. Plugins should use wp_unslash() on data being passed to core API. Plugins should no longer slash data being passed to core. So when you get_post() and then wp_insert_post() the post data from get_post() no longer needs addslashes(). Most plugins were not bothering with this. They will magically start doing the right thing. Unfortunately, those few souls who did it properly will now have to avoid calling addslashes() for 3.6 and newer. Use wp_kses_post() and wp_kses_data(), which expect unslashed data, instead of wp_filter_post_kses() and wp_filter_kses(), which expect slashed data. Filters are no longer passed slashed data. Remove many no longer necessary calls to $wpdb->escape() and esc_sql(). In wp_get_referer() and wp_get_original_referer(), return unslashed data. Remove old stripslashes() calls from WP_Widget::update() handlers. These haven't been necessary since WP_Widget. Switch several queries over to prepare(). Expect something to break. Props alexkingorg see #21767 git-svn-id: http://core.svn.wordpress.org/trunk@23416 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2013-02-14 23:51:06 +01:00
$$var = wp_unslash( $_GET[$var] );
} else {
Change all core API to expect unslashed rather than slashed arguments. The exceptions to this are update_post_meta() and add_post_meta() which are often used by plugins in POST handlers and will continue accepting slashed data for now. Introduce wp_upate_post_meta() and wp_add_post_meta() as unslashed alternatives to update_post_meta() and add_post_meta(). These functions could become methods in WP_Post so don't use them too heavily yet. Remove all escape() calls from wp_xmlrpc_server. Now that core expects unslashed data this is no longer needed. Remove addslashes(), addslashes_gpc(), add_magic_quotes() calls on data being prepared for handoff to core functions that until now expected slashed data. Adding slashes in no longer necessary. Introduce wp_unslash() and use to it remove slashes from GPCS data before using it in core API. Almost every instance of stripslashes() in core should now be wp_unslash(). In the future (a release or three) when GPCS is no longer slashed, wp_unslash() will stop stripping slashes and simply return what is passed. At this point wp_unslash() calls can be removed from core. Introduce wp_slash() for slashing GPCS data. This will also turn into a noop once GPCS is no longer slashed. wp_slash() should almost never be used. It is mainly of use in unit tests. Plugins should use wp_unslash() on data being passed to core API. Plugins should no longer slash data being passed to core. So when you get_post() and then wp_insert_post() the post data from get_post() no longer needs addslashes(). Most plugins were not bothering with this. They will magically start doing the right thing. Unfortunately, those few souls who did it properly will now have to avoid calling addslashes() for 3.6 and newer. Use wp_kses_post() and wp_kses_data(), which expect unslashed data, instead of wp_filter_post_kses() and wp_filter_kses(), which expect slashed data. Filters are no longer passed slashed data. Remove many no longer necessary calls to $wpdb->escape() and esc_sql(). In wp_get_referer() and wp_get_original_referer(), return unslashed data. Remove old stripslashes() calls from WP_Widget::update() handlers. These haven't been necessary since WP_Widget. Switch several queries over to prepare(). Expect something to break. Props alexkingorg see #21767 git-svn-id: http://core.svn.wordpress.org/trunk@23416 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2013-02-14 23:51:06 +01:00
$$var = wp_unslash( $_POST[$var] );
}
}
}
/**
* {@internal Missing Short Description}}
*
* @since 2.1.0
*
* @param unknown_type $message
*/
function show_message($message) {
if ( is_wp_error($message) ){
if ( $message->get_error_data() )
$message = $message->get_error_message() . ': ' . $message->get_error_data();
else
$message = $message->get_error_message();
}
echo "<p>$message</p>\n";
wp_ob_end_flush_all();
flush();
}
function wp_doc_link_parse( $content ) {
if ( !is_string( $content ) || empty( $content ) )
return array();
if ( !function_exists('token_get_all') )
return array();
$tokens = token_get_all( $content );
$functions = array();
$ignore_functions = array();
for ( $t = 0, $count = count( $tokens ); $t < $count; $t++ ) {
if ( !is_array( $tokens[$t] ) ) continue;
if ( T_STRING == $tokens[$t][0] && ( '(' == $tokens[ $t + 1 ] || '(' == $tokens[ $t + 2 ] ) ) {
// If it's a function or class defined locally, there's not going to be any docs available
if ( ( isset( $tokens[ $t - 2 ][1] ) && in_array( $tokens[ $t - 2 ][1], array( 'function', 'class' ) ) ) || ( isset( $tokens[ $t - 2 ][0] ) && T_OBJECT_OPERATOR == $tokens[ $t - 1 ][0] ) ) {
$ignore_functions[] = $tokens[$t][1];
}
// Add this to our stack of unique references
$functions[] = $tokens[$t][1];
}
}
$functions = array_unique( $functions );
sort( $functions );
$ignore_functions = apply_filters( 'documentation_ignore_functions', $ignore_functions );
$ignore_functions = array_unique( $ignore_functions );
$out = array();
foreach ( $functions as $function ) {
if ( in_array( $function, $ignore_functions ) )
continue;
$out[] = $function;
}
return $out;
}
/**
* Saves option for number of rows when listing posts, pages, comments, etc.
*
* @since 2.8
**/
function set_screen_options() {
if ( isset($_POST['wp_screen_options']) && is_array($_POST['wp_screen_options']) ) {
check_admin_referer( 'screen-options-nonce', 'screenoptionnonce' );
if ( !$user = wp_get_current_user() )
return;
Change all core API to expect unslashed rather than slashed arguments. The exceptions to this are update_post_meta() and add_post_meta() which are often used by plugins in POST handlers and will continue accepting slashed data for now. Introduce wp_upate_post_meta() and wp_add_post_meta() as unslashed alternatives to update_post_meta() and add_post_meta(). These functions could become methods in WP_Post so don't use them too heavily yet. Remove all escape() calls from wp_xmlrpc_server. Now that core expects unslashed data this is no longer needed. Remove addslashes(), addslashes_gpc(), add_magic_quotes() calls on data being prepared for handoff to core functions that until now expected slashed data. Adding slashes in no longer necessary. Introduce wp_unslash() and use to it remove slashes from GPCS data before using it in core API. Almost every instance of stripslashes() in core should now be wp_unslash(). In the future (a release or three) when GPCS is no longer slashed, wp_unslash() will stop stripping slashes and simply return what is passed. At this point wp_unslash() calls can be removed from core. Introduce wp_slash() for slashing GPCS data. This will also turn into a noop once GPCS is no longer slashed. wp_slash() should almost never be used. It is mainly of use in unit tests. Plugins should use wp_unslash() on data being passed to core API. Plugins should no longer slash data being passed to core. So when you get_post() and then wp_insert_post() the post data from get_post() no longer needs addslashes(). Most plugins were not bothering with this. They will magically start doing the right thing. Unfortunately, those few souls who did it properly will now have to avoid calling addslashes() for 3.6 and newer. Use wp_kses_post() and wp_kses_data(), which expect unslashed data, instead of wp_filter_post_kses() and wp_filter_kses(), which expect slashed data. Filters are no longer passed slashed data. Remove many no longer necessary calls to $wpdb->escape() and esc_sql(). In wp_get_referer() and wp_get_original_referer(), return unslashed data. Remove old stripslashes() calls from WP_Widget::update() handlers. These haven't been necessary since WP_Widget. Switch several queries over to prepare(). Expect something to break. Props alexkingorg see #21767 git-svn-id: http://core.svn.wordpress.org/trunk@23416 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2013-02-14 23:51:06 +01:00
$option = wp_unslash( $_POST['wp_screen_options']['option'] );
$value = wp_unslash( $_POST['wp_screen_options']['value'] );
if ( $option != sanitize_key( $option ) )
return;
$map_option = $option;
$type = str_replace('edit_', '', $map_option);
$type = str_replace('_per_page', '', $type);
if ( in_array( $type, get_taxonomies() ) )
$map_option = 'edit_tags_per_page';
elseif ( in_array( $type, get_post_types() ) )
$map_option = 'edit_per_page';
else
$option = str_replace('-', '_', $option);
switch ( $map_option ) {
case 'edit_per_page':
case 'users_per_page':
case 'edit_comments_per_page':
case 'upload_per_page':
case 'edit_tags_per_page':
case 'plugins_per_page':
// Network admin
case 'sites_network_per_page':
case 'users_network_per_page':
case 'site_users_network_per_page':
case 'plugins_network_per_page':
case 'themes_network_per_page':
case 'site_themes_network_per_page':
$value = (int) $value;
if ( $value < 1 || $value > 999 )
return;
break;
default:
$value = apply_filters('set-screen-option', false, $option, $value);
if ( false === $value )
return;
break;
}
update_user_meta($user->ID, $option, $value);
wp_safe_redirect( remove_query_arg( array('pagenum', 'apage', 'paged'), wp_get_referer() ) );
exit;
}
}
/**
* Check if rewrite rule for WordPress already exists in the IIS 7 configuration file
*
* @since 2.8.0
*
* @return bool
* @param string $filename The file path to the configuration file
*/
function iis7_rewrite_rule_exists($filename) {
if ( ! file_exists($filename) )
return false;
if ( ! class_exists('DOMDocument') )
return false;
$doc = new DOMDocument();
if ( $doc->load($filename) === false )
return false;
$xpath = new DOMXPath($doc);
$rules = $xpath->query('/configuration/system.webServer/rewrite/rules/rule[starts-with(@name,\'wordpress\')]');
if ( $rules->length == 0 )
return false;
else
return true;
}
/**
* Delete WordPress rewrite rule from web.config file if it exists there
*
* @since 2.8.0
*
* @param string $filename Name of the configuration file
* @return bool
*/
function iis7_delete_rewrite_rule($filename) {
// If configuration file does not exist then rules also do not exist so there is nothing to delete
if ( ! file_exists($filename) )
return true;
if ( ! class_exists('DOMDocument') )
return false;
$doc = new DOMDocument();
$doc->preserveWhiteSpace = false;
if ( $doc -> load($filename) === false )
return false;
$xpath = new DOMXPath($doc);
$rules = $xpath->query('/configuration/system.webServer/rewrite/rules/rule[starts-with(@name,\'wordpress\')]');
if ( $rules->length > 0 ) {
$child = $rules->item(0);
$parent = $child->parentNode;
$parent->removeChild($child);
$doc->formatOutput = true;
saveDomDocument($doc, $filename);
}
return true;
}
/**
* Add WordPress rewrite rule to the IIS 7 configuration file.
*
* @since 2.8.0
*
* @param string $filename The file path to the configuration file
* @param string $rewrite_rule The XML fragment with URL Rewrite rule
* @return bool
*/
function iis7_add_rewrite_rule($filename, $rewrite_rule) {
if ( ! class_exists('DOMDocument') )
return false;
// If configuration file does not exist then we create one.
if ( ! file_exists($filename) ) {
$fp = fopen( $filename, 'w');
fwrite($fp, '<configuration/>');
fclose($fp);
}
$doc = new DOMDocument();
$doc->preserveWhiteSpace = false;
if ( $doc->load($filename) === false )
return false;
$xpath = new DOMXPath($doc);
// First check if the rule already exists as in that case there is no need to re-add it
$wordpress_rules = $xpath->query('/configuration/system.webServer/rewrite/rules/rule[starts-with(@name,\'wordpress\')]');
if ( $wordpress_rules->length > 0 )
return true;
// Check the XPath to the rewrite rule and create XML nodes if they do not exist
$xmlnodes = $xpath->query('/configuration/system.webServer/rewrite/rules');
if ( $xmlnodes->length > 0 ) {
$rules_node = $xmlnodes->item(0);
} else {
$rules_node = $doc->createElement('rules');
$xmlnodes = $xpath->query('/configuration/system.webServer/rewrite');
if ( $xmlnodes->length > 0 ) {
$rewrite_node = $xmlnodes->item(0);
$rewrite_node->appendChild($rules_node);
} else {
$rewrite_node = $doc->createElement('rewrite');
$rewrite_node->appendChild($rules_node);
$xmlnodes = $xpath->query('/configuration/system.webServer');
if ( $xmlnodes->length > 0 ) {
$system_webServer_node = $xmlnodes->item(0);
$system_webServer_node->appendChild($rewrite_node);
} else {
$system_webServer_node = $doc->createElement('system.webServer');
$system_webServer_node->appendChild($rewrite_node);
$xmlnodes = $xpath->query('/configuration');
if ( $xmlnodes->length > 0 ) {
$config_node = $xmlnodes->item(0);
$config_node->appendChild($system_webServer_node);
} else {
$config_node = $doc->createElement('configuration');
$doc->appendChild($config_node);
$config_node->appendChild($system_webServer_node);
}
}
}
}
$rule_fragment = $doc->createDocumentFragment();
$rule_fragment->appendXML($rewrite_rule);
$rules_node->appendChild($rule_fragment);
$doc->encoding = "UTF-8";
$doc->formatOutput = true;
saveDomDocument($doc, $filename);
return true;
}
/**
* Saves the XML document into a file
*
* @since 2.8.0
*
* @param DOMDocument $doc
* @param string $filename
*/
function saveDomDocument($doc, $filename) {
$config = $doc->saveXML();
$config = preg_replace("/([^\r])\n/", "$1\r\n", $config);
$fp = fopen($filename, 'w');
fwrite($fp, $config);
fclose($fp);
}
/**
* Display the default admin color scheme picker (Used in user-edit.php)
*
* @since 3.0.0
*/
function admin_color_scheme_picker() {
global $_wp_admin_css_colors, $user_id; ?>
<fieldset><legend class="screen-reader-text"><span><?php _e('Admin Color Scheme')?></span></legend>
<?php
$current_color = get_user_option('admin_color', $user_id);
if ( empty($current_color) )
$current_color = 'fresh';
foreach ( $_wp_admin_css_colors as $color => $color_info ): ?>
<div class="color-option"><input name="admin_color" id="admin_color_<?php echo esc_attr( $color ); ?>" type="radio" value="<?php echo esc_attr( $color ); ?>" class="tog" <?php checked($color, $current_color); ?> />
<table class="color-palette">
<tr>
<?php foreach ( $color_info->colors as $html_color ): ?>
<td style="background-color: <?php echo esc_attr( $html_color ); ?>" title="<?php echo esc_attr( $color ); ?>">&nbsp;</td>
<?php endforeach; ?>
</tr>
</table>
<label for="admin_color_<?php echo esc_attr( $color ); ?>"><?php echo esc_html( $color_info->name ); ?></label>
</div>
<?php endforeach; ?>
</fieldset>
<?php
}
function _ipad_meta() {
if ( wp_is_mobile() ) {
?>
<meta name="viewport" id="viewport-meta" content="width=device-width, initial-scale=1">
<?php
}
}
add_action('admin_head', '_ipad_meta');
/**
* Check lock status for posts displayed on the Posts screen
*
* @since 3.6
*/
function wp_check_locked_posts( $response, $data ) {
$checked = array();
if ( array_key_exists( 'wp-check-locked', $data ) && is_array( $data['wp-check-locked'] ) ) {
foreach ( $data['wp-check-locked'] as $key ) {
$post_id = (int) substr( $key, 5 );
if ( current_user_can( 'edit_post', $post_id ) && ( $user_id = wp_check_post_lock( $post_id ) ) ) {
if ( $user = get_userdata( $user_id ) )
$checked[$key] = sprintf( __( '%s is currently editing' ), $user->display_name );
}
}
}
if ( ! empty( $checked ) )
$response['wp-check-locked'] = $checked;
return $response;
}
add_filter( 'heartbeat_received', 'wp_check_locked_posts', 10, 2 );