Description: WordPress Theme Administration API
1 <?php 2 /** 3 * WordPress Theme Administration API 4 * 5 * @package WordPress 6 * @subpackage Administration 7 */ 8 9 /** 10 * Remove a theme 11 * 12 * @since 2.8.0 13 * 14 * @param string $stylesheet Stylesheet of the theme to delete 15 * @param string $redirect Redirect to page when complete. 16 * @return mixed 17 */ 18 function delete_theme($stylesheet, $redirect = '') { 19 global $wp_filesystem; 20 21 if ( empty($stylesheet) ) 22 return false; 23 24 ob_start(); 25 if ( empty( $redirect ) ) 26 $redirect = wp_nonce_url('themes.php?action=delete&stylesheet=' . urlencode( $stylesheet ), 'delete-theme_' . $stylesheet); 27 if ( false === ($credentials = request_filesystem_credentials($redirect)) ) { 28 $data = ob_get_contents(); 29 ob_end_clean(); 30 if ( ! empty($data) ){ 31 include_once ( ABSPATH . 'wp-admin/admin-header.php'); 32 echo $data; 33 include ( ABSPATH . 'wp-admin/admin-footer.php'); 34 exit; 35 } 36 return; 37 } 38 39 if ( ! WP_Filesystem($credentials) ) { 40 request_filesystem_credentials($url, '', true); // Failed to connect, Error and request again 41 $data = ob_get_contents(); 42 ob_end_clean(); 43 if ( ! empty($data) ) { 44 include_once ( ABSPATH . 'wp-admin/admin-header.php'); 45 echo $data; 46 include ( ABSPATH . 'wp-admin/admin-footer.php'); 47 exit; 48 } 49 return; 50 } 51 52 if ( ! is_object($wp_filesystem) ) 53 return new WP_Error('fs_unavailable', __('Could not access filesystem.')); 54 55 if ( is_wp_error($wp_filesystem->errors) && $wp_filesystem->errors->get_error_code() ) 56 return new WP_Error('fs_error', __('Filesystem error.'), $wp_filesystem->errors); 57 58 //Get the base plugin folder 59 $themes_dir = $wp_filesystem->wp_themes_dir(); 60 if ( empty($themes_dir) ) 61 return new WP_Error('fs_no_themes_dir', __('Unable to locate WordPress theme directory.')); 62 63 $themes_dir = trailingslashit( $themes_dir ); 64 $theme_dir = trailingslashit($themes_dir . $stylesheet); 65 $deleted = $wp_filesystem->delete($theme_dir, true); 66 67 if ( ! $deleted ) 68 return new WP_Error('could_not_remove_theme', sprintf(__('Could not fully remove the theme %s.'), $stylesheet) ); 69 70 // Force refresh of theme update information 71 delete_site_transient('update_themes'); 72 73 return true; 74 } 75 76 /** 77 * Get the Page Templates available in this theme 78 * 79 * @since 1.5.0 80 * 81 * @return array Key is the template name, value is the filename of the template 82 */ 83 function get_page_templates() { 84 return array_flip( wp_get_theme()->get_page_templates() ); 85 } 86 87 /** 88 * Tidies a filename for url display by the theme editor. 89 * 90 * @since 2.9.0 91 * @access private 92 * 93 * @param string $fullpath Full path to the theme file 94 * @param string $containingfolder Path of the theme parent folder 95 * @return string 96 */ 97 function _get_template_edit_filename($fullpath, $containingfolder) { 98 return str_replace(dirname(dirname( $containingfolder )) , '', $fullpath); 99 } 100 101 /** 102 * Check if there is an update for a theme available. 103 * 104 * Will display link, if there is an update available. 105 * 106 * @since 2.7.0 107 * 108 * @param object $theme Theme data object. 109 * @return bool False if no valid info was passed. 110 */ 111 function theme_update_available( $theme ) { 112 static $themes_update; 113 114 if ( !current_user_can('update_themes' ) ) 115 return; 116 117 if ( !isset($themes_update) ) 118 $themes_update = get_site_transient('update_themes'); 119 120 if ( ! is_a( $theme, 'WP_Theme' ) ) 121 return; 122 123 $stylesheet = $theme->get_stylesheet(); 124 125 if ( isset($themes_update->response[ $stylesheet ]) ) { 126 $update = $themes_update->response[ $stylesheet ]; 127 $theme_name = $theme->display('Name'); 128 $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. 129 $update_url = wp_nonce_url('update.php?action=upgrade-theme&theme=' . urlencode($stylesheet), 'upgrade-theme_' . $stylesheet); 130 $update_onclick = 'onclick="if ( confirm(\'' . esc_js( __("Updating this theme will lose any customizations you have made. 'Cancel' to stop, 'OK' to update.") ) . '\') ) {return true;}return false;"'; 131 132 if ( !is_multisite() ) { 133 if ( ! current_user_can('update_themes') ) 134 printf( '<p><strong>' . __('There is a new version of %1$s available. <a href="%2$s" class="thickbox" title="%1$s">View version %3$s details</a>.') . '</strong></p>', $theme_name, $details_url, $update['new_version']); 135 else if ( empty($update['package']) ) 136 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 update is unavailable for this theme.</em>') . '</strong></p>', $theme_name, $details_url, $update['new_version']); 137 else 138 printf( '<p><strong>' . __('There is a new version of %1$s available. <a href="%2$s" class="thickbox" title="%1$s">View version %3$s details</a> or <a href="%4$s" %5$s>update now</a>.') . '</strong></p>', $theme_name, $details_url, $update['new_version'], $update_url, $update_onclick ); 139 } 140 } 141 } 142 143 /** 144 * Retrieve list of WordPress theme features (aka theme tags) 145 * 146 * @since 3.1.0 147 * 148 * @param bool $api Optional. Whether try to fetch tags from the WP.org API. Defaults to true. 149 * @return array Array of features keyed by category with translations keyed by slug. 150 */ 151 function get_theme_feature_list( $api = true ) { 152 // Hard-coded list is used if api not accessible. 153 $features = array( 154 __( 'Colors' ) => array( 155 'black' => __( 'Black' ), 156 'blue' => __( 'Blue' ), 157 'brown' => __( 'Brown' ), 158 'gray' => __( 'Gray' ), 159 'green' => __( 'Green' ), 160 'orange' => __( 'Orange' ), 161 'pink' => __( 'Pink' ), 162 'purple' => __( 'Purple' ), 163 'red' => __( 'Red' ), 164 'silver' => __( 'Silver' ), 165 'tan' => __( 'Tan' ), 166 'white' => __( 'White' ), 167 'yellow' => __( 'Yellow' ), 168 'dark' => __( 'Dark' ), 169 'light' => __( 'Light' ), 170 ), 171 172 __( 'Columns' ) => array( 173 'one-column' => __( 'One Column' ), 174 'two-columns' => __( 'Two Columns' ), 175 'three-columns' => __( 'Three Columns' ), 176 'four-columns' => __( 'Four Columns' ), 177 'left-sidebar' => __( 'Left Sidebar' ), 178 'right-sidebar' => __( 'Right Sidebar' ), 179 ), 180 181 __( 'Width' ) => array( 182 'fixed-width' => __( 'Fixed Width' ), 183 'flexible-width' => __( 'Flexible Width' ), 184 ), 185 186 __( 'Features' ) => array( 187 'blavatar' => __( 'Blavatar' ), 188 'buddypress' => __( 'BuddyPress' ), 189 'custom-background' => __( 'Custom Background' ), 190 'custom-colors' => __( 'Custom Colors' ), 191 'custom-header' => __( 'Custom Header' ), 192 'custom-menu' => __( 'Custom Menu' ), 193 'editor-style' => __( 'Editor Style' ), 194 'featured-image-header' => __( 'Featured Image Header' ), 195 'featured-images' => __( 'Featured Images' ), 196 'flexible-header' => __( 'Flexible Header' ), 197 'front-page-post-form' => __( 'Front Page Posting' ), 198 'full-width-template' => __( 'Full Width Template' ), 199 'microformats' => __( 'Microformats' ), 200 'post-formats' => __( 'Post Formats' ), 201 'rtl-language-support' => __( 'RTL Language Support' ), 202 'sticky-post' => __( 'Sticky Post' ), 203 'theme-options' => __( 'Theme Options' ), 204 'threaded-comments' => __( 'Threaded Comments' ), 205 'translation-ready' => __( 'Translation Ready' ), 206 ), 207 208 __( 'Subject' ) => array( 209 'holiday' => __( 'Holiday' ), 210 'photoblogging' => __( 'Photoblogging' ), 211 'seasonal' => __( 'Seasonal' ), 212 ) 213 ); 214 215 if ( ! $api || ! current_user_can( 'install_themes' ) ) 216 return $features; 217 218 if ( !$feature_list = get_site_transient( 'wporg_theme_feature_list' ) ) 219 set_site_transient( 'wporg_theme_feature_list', array( ), 10800); 220 221 if ( !$feature_list ) { 222 $feature_list = themes_api( 'feature_list', array( ) ); 223 if ( is_wp_error( $feature_list ) ) 224 return $features; 225 } 226 227 if ( !$feature_list ) 228 return $features; 229 230 set_site_transient( 'wporg_theme_feature_list', $feature_list, 10800 ); 231 232 $category_translations = array( 'Colors' => __('Colors'), 'Columns' => __('Columns'), 'Width' => __('Width'), 233 'Features' => __('Features'), 'Subject' => __('Subject') ); 234 235 // Loop over the wporg canonical list and apply translations 236 $wporg_features = array(); 237 foreach ( (array) $feature_list as $feature_category => $feature_items ) { 238 if ( isset($category_translations[$feature_category]) ) 239 $feature_category = $category_translations[$feature_category]; 240 $wporg_features[$feature_category] = array(); 241 242 foreach ( $feature_items as $feature ) { 243 if ( isset($features[$feature_category][$feature]) ) 244 $wporg_features[$feature_category][$feature] = $features[$feature_category][$feature]; 245 else 246 $wporg_features[$feature_category][$feature] = $feature; 247 } 248 } 249 250 return $wporg_features; 251 } 252 253 /** 254 * Retrieve theme installer pages from WordPress Themes API. 255 * 256 * It is possible for a theme to override the Themes API result with three 257 * filters. Assume this is for themes, which can extend on the Theme Info to 258 * offer more choices. This is very powerful and must be used with care, when 259 * overridding the filters. 260 * 261 * The first filter, 'themes_api_args', is for the args and gives the action as 262 * the second parameter. The hook for 'themes_api_args' must ensure that an 263 * object is returned. 264 * 265 * The second filter, 'themes_api', is the result that would be returned. 266 * 267 * @since 2.8.0 268 * 269 * @param string $action 270 * @param array|object $args Optional. Arguments to serialize for the Theme Info API. 271 * @return mixed 272 */ 273 function themes_api($action, $args = null) { 274 275 if ( is_array($args) ) 276 $args = (object)$args; 277 278 if ( !isset($args->per_page) ) 279 $args->per_page = 24; 280 281 $args = apply_filters('themes_api_args', $args, $action); //NOTE: Ensure that an object is returned via this filter. 282 $res = apply_filters('themes_api', false, $action, $args); //NOTE: Allows a theme to completely override the builtin WordPress.org API. 283 284 if ( ! $res ) { 285 $request = wp_remote_post('http://api.wordpress.org/themes/info/1.0/', array( 'body' => array('action' => $action, 'request' => serialize($args))) ); 286 if ( is_wp_error($request) ) { 287 $res = new WP_Error('themes_api_failed', __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the <a href="http://wordpress.org/support/">support forums</a>.' ), $request->get_error_message() ); 288 } else { 289 $res = maybe_unserialize( wp_remote_retrieve_body( $request ) ); 290 if ( ! is_object( $res ) && ! is_array( $res ) ) 291 $res = new WP_Error('themes_api_failed', __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the <a href="http://wordpress.org/support/">support forums</a>.' ), wp_remote_retrieve_body( $request ) ); 292 } 293 } 294 295 return apply_filters('themes_api_result', $res, $action, $args); 296 }
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