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/wp-admin/includes/theme.php

https://bitbucket.org/julianelve/vendor-wordpress
PHP | 296 lines | 182 code | 40 blank | 74 comment | 34 complexity | b54436df59fad14d93e950e65aab4b0a MD5 | raw file
  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 $redirect Redirect to page when complete.
 16 * @return mixed
 17 */
 18function delete_theme($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 */
 83function 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 $containingfolder Path of the theme parent folder
 95 * @return string
 96 */
 97function _get_template_edit_filename($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 */
111function 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		$update_url = wp_nonce_url('update.php?action=upgrade-theme&amp;theme=' . urlencode($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 */
151function 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 $args Optional. Arguments to serialize for the Theme Info API.
271 * @return mixed
272 */
273function themes_api($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&#8217;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&#8217;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}