wp-admin/includes/theme.php

   1 <?php
   2 /**
   3  * WordPress Theme Administration API
   4  *
   5  * @package WordPress
   6  * @subpackage Administration
   7  */
   8
   9 /**
  10  * {@internal Missing Short Description}}
  11  *
  12  * @since unknown
  13  *
  14  * @return unknown
  15  */
  16 function current_theme_info() {
  17         $themes = get_themes();
  18         $current_theme = get_current_theme();
  19         if ( ! isset( $themes[$current_theme] ) ) {
  20                 delete_option( 'current_theme' );
  21                 $current_theme = get_current_theme();
  22         }
  23         $ct->name = $current_theme;
  24         $ct->title = $themes[$current_theme]['Title'];
  25         $ct->version = $themes[$current_theme]['Version'];
  26         $ct->parent_theme = $themes[$current_theme]['Parent Theme'];
  27         $ct->template_dir = $themes[$current_theme]['Template Dir'];
  28         $ct->stylesheet_dir = $themes[$current_theme]['Stylesheet Dir'];
  29         $ct->template = $themes[$current_theme]['Template'];
  30         $ct->stylesheet = $themes[$current_theme]['Stylesheet'];
  31         $ct->screenshot = $themes[$current_theme]['Screenshot'];
  32         $ct->description = $themes[$current_theme]['Description'];
  33         $ct->author = $themes[$current_theme]['Author'];
  34         $ct->tags = $themes[$current_theme]['Tags'];
  35         $ct->theme_root = $themes[$current_theme]['Theme Root'];
  36         $ct->theme_root_uri = $themes[$current_theme]['Theme Root URI'];
  37         return $ct;
  38 }
  39
  40 /**
  41  * Remove a theme
  42  *
  43  * @since 2.8.0
  44  *
  45  * @param string $template Template directory of the theme to delete
  46  * @return mixed
  47  */
  48 function delete_theme($template) {
  49         global $wp_filesystem;
  50
  51         if ( empty($template) )
  52                 return false;
  53
  54         ob_start();
  55         $url = wp_nonce_url('themes.php?action=delete&template=' . $template, 'delete-theme_' . $template);
  56         if ( false === ($credentials = request_filesystem_credentials($url)) ) {
  57                 $data = ob_get_contents();
  58                 ob_end_clean();
  59                 if ( ! empty($data) ){
  60                         include_once( ABSPATH . 'wp-admin/admin-header.php');
  61                         echo $data;
  62                         include( ABSPATH . 'wp-admin/admin-footer.php');
  63                         exit;
  64                 }
  65                 return;
  66         }
  67
  68         if ( ! WP_Filesystem($credentials) ) {
  69                 request_filesystem_credentials($url, '', true); // Failed to connect, Error and request again
  70                 $data = ob_get_contents();
  71                 ob_end_clean();
  72                 if ( ! empty($data) ) {
  73                         include_once( ABSPATH . 'wp-admin/admin-header.php');
  74                         echo $data;
  75                         include( ABSPATH . 'wp-admin/admin-footer.php');
  76                         exit;
  77                 }
  78                 return;
  79         }
  80
  81
  82         if ( ! is_object($wp_filesystem) )
  83                 return new WP_Error('fs_unavailable', __('Could not access filesystem.'));
  84
  85         if ( is_wp_error($wp_filesystem->errors) && $wp_filesystem->errors->get_error_code() )
  86                 return new WP_Error('fs_error', __('Filesystem error.'), $wp_filesystem->errors);
  87
  88         //Get the base plugin folder
  89         $themes_dir = $wp_filesystem->wp_themes_dir();
  90         if ( empty($themes_dir) )
  91                 return new WP_Error('fs_no_themes_dir', __('Unable to locate WordPress theme directory.'));
  92
  93         $themes_dir = trailingslashit( $themes_dir );
  94         $theme_dir = trailingslashit($themes_dir . $template);
  95         $deleted = $wp_filesystem->delete($theme_dir, true);
  96
  97         if ( ! $deleted )
  98                 return new WP_Error('could_not_remove_theme', sprintf(__('Could not fully remove the theme %s.'), $template) );
  99
 100         // Force refresh of theme update information
 101         delete_site_transient('update_themes');
 102
 103         return true;
 104 }
 105
 106 /**
 107  * {@internal Missing Short Description}}
 108  *
 109  * @since unknown
 110  *
 111  * @return unknown
 112  */
 113 function get_broken_themes() {
 114         global $wp_broken_themes;
 115
 116         get_themes();
 117         return $wp_broken_themes;
 118 }
 119
 120 /**
 121  * Get the allowed themes for the current blog.
 122  *
 123  * @since 3.0.0
 124  *
 125  * @uses get_themes()
 126  * @uses current_theme_info()
 127  * @uses get_site_allowed_themes()
 128  * @uses wpmu_get_blog_allowedthemes
 129  *
 130  * @return array $themes Array of allowed themes.
 131  */
 132 function get_allowed_themes() {
 133         if ( !is_multisite() )
 134                 return get_themes();
 135
 136         $themes = get_themes();
 137         $ct = current_theme_info();
 138         $allowed_themes = apply_filters("allowed_themes", get_site_allowed_themes() );
 139         if ( $allowed_themes == false )
 140                 $allowed_themes = array();
 141
 142         $blog_allowed_themes = wpmu_get_blog_allowedthemes();
 143         if ( is_array( $blog_allowed_themes ) )
 144                 $allowed_themes = array_merge( $allowed_themes, $blog_allowed_themes );
 145
 146         if ( isset( $allowed_themes[ esc_html( $ct->stylesheet ) ] ) == false )
 147                 $allowed_themes[ esc_html( $ct->stylesheet ) ] = true;
 148
 149         reset( $themes );
 150         foreach ( $themes as $key => $theme ) {
 151                 if ( isset( $allowed_themes[ esc_html( $theme[ 'Stylesheet' ] ) ] ) == false )
 152                         unset( $themes[ $key ] );
 153         }
 154         reset( $themes );
 155
 156         return $themes;
 157 }
 158
 159 /**
 160  * Get the Page Templates available in this theme
 161  *
 162  * @since unknown
 163  *
 164  * @return array Key is template name, Value is template name
 165  */
 166 function get_page_templates() {
 167         $themes = get_themes();
 168         $theme = get_current_theme();
 169         $templates = $themes[$theme]['Template Files'];
 170         $page_templates = array();
 171
 172         if ( is_array( $templates ) ) {
 173                 $base = array( trailingslashit(get_template_directory()), trailingslashit(get_stylesheet_directory()) );
 174
 175                 foreach ( $templates as $template ) {
 176                         $basename = str_replace($base, '', $template);
 177
 178                         // don't allow template files in subdirectories
 179                         if ( false !== strpos($basename, '/') )
 180                                 continue;
 181
 182                         $template_data = implode( '', file( $template ));
 183
 184                         $name = '';
 185                         if ( preg_match( '|Template Name:(.*)$|mi', $template_data, $name ) )
 186                                 $name = _cleanup_header_comment($name[1]);
 187
 188                         if ( !empty( $name ) ) {
 189                                 $page_templates[trim( $name )] = $basename;
 190                         }
 191                 }
 192         }
 193
 194         return $page_templates;
 195 }
 196
 197 /**
 198  * Tidies a filename for url display by the theme editor.
 199  *
 200  * @since 2.9.0
 201  * @access private
 202  *
 203  * @param string $fullpath Full path to the theme file
 204  * @param string $containingfolder Path of the theme parent folder
 205  * @return string
 206  */
 207 function _get_template_edit_filename($fullpath, $containingfolder) {
 208         return str_replace(dirname(dirname( $containingfolder )) , '', $fullpath);
 209 }
 210
 211 /**
 212  * Check if there is an update for a theme available.
 213  *
 214  * Will display link, if there is an update available.
 215  *
 216  * @since 2.7.0
 217  *
 218  * @param object $theme Theme data object.
 219  * @return bool False if no valid info was passed.
 220  */
 221 function theme_update_available( $theme ) {
 222         static $themes_update;
 223
 224         if ( !current_user_can('update_themes' ) )
 225                 return;
 226
 227         if ( !isset($themes_update) )
 228                 $themes_update = get_site_transient('update_themes');
 229
 230         if ( is_object($theme) && isset($theme->stylesheet) )
 231                 $stylesheet = $theme->stylesheet;
 232         elseif ( is_array($theme) && isset($theme['Stylesheet']) )
 233                 $stylesheet = $theme['Stylesheet'];
 234         else
 235                 return false; //No valid info passed.
 236
 237         if ( isset($themes_update->response[ $stylesheet ]) ) {
 238                 $update = $themes_update->response[ $stylesheet ];
 239                 $theme_name = is_object($theme) ? $theme->name : (is_array($theme) ? $theme['Name'] : '');
 240                 $details_url = add_query_arg(array('TB_iframe' => 'true', 'width' => 1024, 'height' => 800), $update['url']); //Theme browser inside WP? replace this, Also, theme preview JS will override this on the available list.
 241                 $update_url = wp_nonce_url('update.php?action=upgrade-theme&amp;theme=' . urlencode($stylesheet), 'upgrade-theme_' . $stylesheet);
 242                 $update_onclick = 'onclick="if ( confirm(\'' . esc_js( __("Upgrading this theme will lose any customizations you have made.  'Cancel' to stop, 'OK' to upgrade.") ) . '\') ) {return true;}return false;"';
 243
 244                 if ( ! current_user_can('update_themes') )
 245                         printf( '<p><strong>' . __('There is a new version of %1$s available. <a href="%2$s" class="thickbox" title="%1$s">View version %3$s Details</a>.') . '</strong></p>', $theme_name, $details_url, $update['new_version']);
 246                 else if ( empty($update['package']) )
 247                         printf( '<p><strong>' . __('There is a new version of %1$s available. <a href="%2$s" class="thickbox" title="%1$s">View version %3$s Details</a> <em>automatic upgrade unavailable for this theme</em>.') . '</strong></p>', $theme_name, $details_url, $update['new_version']);
 248                 else
 249                         printf( '<p><strong>' . __('There is a new version of %1$s available. <a href="%2$s" class="thickbox" title="%1$s">View version %3$s Details</a> or <a href="%4$s" %5$s>upgrade automatically</a>.') . '</strong></p>', $theme_name, $details_url, $update['new_version'], $update_url, $update_onclick );
 250         }
 251 }
 252
 253 ?>