--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-admin/includes/misc.php Wed Nov 06 03:21:17 2013 +0000
@@ -0,0 +1,700 @@
+<?php
+/**
+ * Misc WordPress Administration API.
+ *
+ * @package WordPress
+ * @subpackage Administration
+ */
+
+/**
+ * Returns whether the server is running Apache with the mod_rewrite module loaded.
+ *
+ * @since 2.0.0
+ *
+ * @return bool
+ */
+function got_mod_rewrite() {
+ $got_rewrite = apache_mod_loaded('mod_rewrite', true);
+
+ /**
+ * Filter whether Apache and mod_rewrite are present.
+ *
+ * This filter was previously used to force URL rewriting for other servers,
+ * like nginx. Use the got_url_rewrite filter in got_url_rewrite() instead.
+ *
+ * @see got_url_rewrite()
+ *
+ * @since 2.5.0
+ * @param bool $got_rewrite Whether Apache and mod_rewrite are present.
+ */
+ return apply_filters('got_rewrite', $got_rewrite);
+}
+
+/**
+ * Returns whether the server supports URL rewriting.
+ *
+ * Detects Apache's mod_rewrite, IIS 7.0+ permalink support, and nginx.
+ *
+ * @since 3.7.0
+ *
+ * @return bool Whether the server supports URL rewriting.
+ */
+function got_url_rewrite() {
+ $got_url_rewrite = ( got_mod_rewrite() || $GLOBALS['is_nginx'] || iis7_supports_permalinks() );
+
+ /**
+ * Filter whether URL rewriting is available.
+ *
+ * @since 3.7.0
+ * @param bool $got_url_rewrite Whether URL rewriting is available.
+ */
+ return apply_filters( 'got_url_rewrite', $got_url_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 ) {
+ $short_url = str_replace( array( 'http://', 'www.' ), '', $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
+ $$var = $_GET[$var];
+ } else {
+ $$var = $_POST[$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() && is_string( $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;
+ $option = $_POST['wp_screen_options']['option'];
+ $value = $_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 ); ?>"> </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, $screen_id ) {
+ $checked = array();
+
+ if ( array_key_exists( 'wp-check-locked-posts', $data ) && is_array( $data['wp-check-locked-posts'] ) ) {
+ foreach ( $data['wp-check-locked-posts'] as $key ) {
+ if ( ! $post_id = absint( substr( $key, 5 ) ) )
+ continue;
+
+ if ( ( $user_id = wp_check_post_lock( $post_id ) ) && ( $user = get_userdata( $user_id ) ) && current_user_can( 'edit_post', $post_id ) ) {
+ $send = array( 'text' => sprintf( __( '%s is currently editing' ), $user->display_name ) );
+
+ if ( ( $avatar = get_avatar( $user->ID, 18 ) ) && preg_match( "|src='([^']+)'|", $avatar, $matches ) )
+ $send['avatar_src'] = $matches[1];
+
+ $checked[$key] = $send;
+ }
+ }
+ }
+
+ if ( ! empty( $checked ) )
+ $response['wp-check-locked-posts'] = $checked;
+
+ return $response;
+}
+add_filter( 'heartbeat_received', 'wp_check_locked_posts', 10, 3 );
+
+/**
+ * Check lock status on the New/Edit Post screen and refresh the lock
+ *
+ * @since 3.6
+ */
+function wp_refresh_post_lock( $response, $data, $screen_id ) {
+ if ( array_key_exists( 'wp-refresh-post-lock', $data ) ) {
+ $received = $data['wp-refresh-post-lock'];
+ $send = array();
+
+ if ( ! $post_id = absint( $received['post_id'] ) )
+ return $response;
+
+ if ( ! current_user_can('edit_post', $post_id) )
+ return $response;
+
+ if ( ( $user_id = wp_check_post_lock( $post_id ) ) && ( $user = get_userdata( $user_id ) ) ) {
+ $error = array(
+ 'text' => sprintf( __( '%s has taken over and is currently editing.' ), $user->display_name )
+ );
+
+ if ( $avatar = get_avatar( $user->ID, 64 ) ) {
+ if ( preg_match( "|src='([^']+)'|", $avatar, $matches ) )
+ $error['avatar_src'] = $matches[1];
+ }
+
+ $send['lock_error'] = $error;
+ } else {
+ if ( $new_lock = wp_set_post_lock( $post_id ) )
+ $send['new_lock'] = implode( ':', $new_lock );
+ }
+
+ $response['wp-refresh-post-lock'] = $send;
+ }
+
+ return $response;
+}
+add_filter( 'heartbeat_received', 'wp_refresh_post_lock', 10, 3 );
+
+/**
+ * Check nonce expiration on the New/Edit Post screen and refresh if needed
+ *
+ * @since 3.6
+ */
+function wp_refresh_post_nonces( $response, $data, $screen_id ) {
+ if ( array_key_exists( 'wp-refresh-post-nonces', $data ) ) {
+ $received = $data['wp-refresh-post-nonces'];
+ $response['wp-refresh-post-nonces'] = array( 'check' => 1 );
+
+ if ( ! $post_id = absint( $received['post_id'] ) )
+ return $response;
+
+ if ( ! current_user_can( 'edit_post', $post_id ) || empty( $received['post_nonce'] ) )
+ return $response;
+
+ if ( 2 === wp_verify_nonce( $received['post_nonce'], 'update-post_' . $post_id ) ) {
+ $response['wp-refresh-post-nonces'] = array(
+ 'replace' => array(
+ 'autosavenonce' => wp_create_nonce('autosave'),
+ 'getpermalinknonce' => wp_create_nonce('getpermalink'),
+ 'samplepermalinknonce' => wp_create_nonce('samplepermalink'),
+ 'closedpostboxesnonce' => wp_create_nonce('closedpostboxes'),
+ '_ajax_linking_nonce' => wp_create_nonce( 'internal-linking' ),
+ '_wpnonce' => wp_create_nonce( 'update-post_' . $post_id ),
+ ),
+ 'heartbeatNonce' => wp_create_nonce( 'heartbeat-nonce' ),
+ );
+ }
+ }
+
+ return $response;
+}
+add_filter( 'heartbeat_received', 'wp_refresh_post_nonces', 10, 3 );