WordPress/wp-admin/includes/theme.php

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<?php
/**
* WordPress Theme Administration API
*
* @package WordPress
* @subpackage Administration
*/
/**
* {@internal Missing Short Description}}
*
* @since 2.0.0
*
* @return unknown
*/
function current_theme_info() {
$themes = get_themes();
$current_theme = get_current_theme();
if ( ! $themes ) {
$ct = new stdClass;
$ct->name = $current_theme;
return $ct;
}
if ( ! isset( $themes[$current_theme] ) ) {
delete_option( 'current_theme' );
$current_theme = get_current_theme();
}
$ct = new stdClass;
$ct->name = $current_theme;
$ct->title = $themes[$current_theme]['Title'];
$ct->version = $themes[$current_theme]['Version'];
$ct->parent_theme = $themes[$current_theme]['Parent Theme'];
$ct->template_dir = $themes[$current_theme]['Template Dir'];
$ct->stylesheet_dir = $themes[$current_theme]['Stylesheet Dir'];
$ct->template = $themes[$current_theme]['Template'];
$ct->stylesheet = $themes[$current_theme]['Stylesheet'];
$ct->screenshot = $themes[$current_theme]['Screenshot'];
$ct->description = $themes[$current_theme]['Description'];
$ct->author = $themes[$current_theme]['Author'];
$ct->tags = $themes[$current_theme]['Tags'];
$ct->theme_root = $themes[$current_theme]['Theme Root'];
$ct->theme_root_uri = $themes[$current_theme]['Theme Root URI'];
return $ct;
}
/**
* Remove a theme
*
* @since 2.8.0
*
* @param string $template Template directory of the theme to delete
* @param string $redirect Redirect to page when complete.
* @return mixed
*/
function delete_theme($template, $redirect = '') {
global $wp_filesystem;
if ( empty($template) )
return false;
ob_start();
if ( empty( $redirect ) )
$redirect = wp_nonce_url('themes.php?action=delete&template=' . $template, 'delete-theme_' . $template);
if ( false === ($credentials = request_filesystem_credentials($redirect)) ) {
$data = ob_get_contents();
ob_end_clean();
if ( ! empty($data) ){
include_once( ABSPATH . 'wp-admin/admin-header.php');
echo $data;
include( ABSPATH . 'wp-admin/admin-footer.php');
exit;
}
return;
}
if ( ! WP_Filesystem($credentials) ) {
request_filesystem_credentials($url, '', true); // Failed to connect, Error and request again
$data = ob_get_contents();
ob_end_clean();
if ( ! empty($data) ) {
include_once( ABSPATH . 'wp-admin/admin-header.php');
echo $data;
include( ABSPATH . 'wp-admin/admin-footer.php');
exit;
}
return;
}
if ( ! is_object($wp_filesystem) )
return new WP_Error('fs_unavailable', __('Could not access filesystem.'));
if ( is_wp_error($wp_filesystem->errors) && $wp_filesystem->errors->get_error_code() )
return new WP_Error('fs_error', __('Filesystem error.'), $wp_filesystem->errors);
//Get the base plugin folder
$themes_dir = $wp_filesystem->wp_themes_dir();
if ( empty($themes_dir) )
return new WP_Error('fs_no_themes_dir', __('Unable to locate WordPress theme directory.'));
$themes_dir = trailingslashit( $themes_dir );
$theme_dir = trailingslashit($themes_dir . $template);
$deleted = $wp_filesystem->delete($theme_dir, true);
if ( ! $deleted )
return new WP_Error('could_not_remove_theme', sprintf(__('Could not fully remove the theme %s.'), $template) );
// Force refresh of theme update information
delete_site_transient('update_themes');
return true;
}
/**
* {@internal Missing Short Description}}
*
* @since 1.5.0
*
* @return unknown
*/
function get_broken_themes() {
global $wp_broken_themes;
get_themes();
return $wp_broken_themes;
}
/**
* Get the allowed themes for the current blog.
*
* @since 3.0.0
*
* @uses get_themes()
* @uses current_theme_info()
* @uses get_site_allowed_themes()
* @uses wpmu_get_blog_allowedthemes
*
* @return array $themes Array of allowed themes.
*/
function get_allowed_themes() {
if ( !is_multisite() )
return get_themes();
$themes = get_themes();
$ct = current_theme_info();
$allowed_themes = apply_filters("allowed_themes", get_site_allowed_themes() );
if ( $allowed_themes == false )
$allowed_themes = array();
$blog_allowed_themes = wpmu_get_blog_allowedthemes();
if ( is_array( $blog_allowed_themes ) )
$allowed_themes = array_merge( $allowed_themes, $blog_allowed_themes );
if ( isset( $allowed_themes[ esc_html( $ct->stylesheet ) ] ) == false )
$allowed_themes[ esc_html( $ct->stylesheet ) ] = true;
reset( $themes );
foreach ( $themes as $key => $theme ) {
if ( isset( $allowed_themes[ esc_html( $theme[ 'Stylesheet' ] ) ] ) == false )
unset( $themes[ $key ] );
}
reset( $themes );
return $themes;
}
/**
* Get the Page Templates available in this theme
*
* @since 1.5.0
*
* @return array Key is the template name, value is the filename of the template
*/
function get_page_templates() {
$themes = get_themes();
$theme = get_current_theme();
$templates = $themes[$theme]['Template Files'];
$page_templates = array();
if ( is_array( $templates ) ) {
$base = array( trailingslashit(get_template_directory()), trailingslashit(get_stylesheet_directory()) );
foreach ( $templates as $template ) {
$basename = str_replace($base, '', $template);
// don't allow template files in subdirectories
if ( false !== strpos($basename, '/') )
continue;
if ( 'functions.php' == $basename )
continue;
$template_data = implode( '', file( $template ));
$name = '';
if ( preg_match( '|Template Name:(.*)$|mi', $template_data, $name ) )
$name = _cleanup_header_comment($name[1]);
if ( !empty( $name ) ) {
$page_templates[trim( $name )] = $basename;
}
}
}
return $page_templates;
}
/**
* Tidies a filename for url display by the theme editor.
*
* @since 2.9.0
* @access private
*
* @param string $fullpath Full path to the theme file
* @param string $containingfolder Path of the theme parent folder
* @return string
*/
function _get_template_edit_filename($fullpath, $containingfolder) {
return str_replace(dirname(dirname( $containingfolder )) , '', $fullpath);
}
/**
* Check if there is an update for a theme available.
*
* Will display link, if there is an update available.
*
* @since 2.7.0
*
* @param object $theme Theme data object.
* @return bool False if no valid info was passed.
*/
function theme_update_available( $theme ) {
static $themes_update;
if ( !current_user_can('update_themes' ) )
return;
if ( !isset($themes_update) )
$themes_update = get_site_transient('update_themes');
if ( is_object($theme) && isset($theme->stylesheet) )
$stylesheet = $theme->stylesheet;
elseif ( is_array($theme) && isset($theme['Stylesheet']) )
$stylesheet = $theme['Stylesheet'];
else
return false; //No valid info passed.
if ( isset($themes_update->response[ $stylesheet ]) ) {
$update = $themes_update->response[ $stylesheet ];
$theme_name = is_object($theme) ? $theme->name : (is_array($theme) ? $theme['Name'] : '');
$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.
$update_url = wp_nonce_url('update.php?action=upgrade-theme&amp;theme=' . urlencode($stylesheet), 'upgrade-theme_' . $stylesheet);
$update_onclick = 'onclick="if ( confirm(\'' . esc_js( __("Updating this theme will lose any customizations you have made. 'Cancel' to stop, 'OK' to update.") ) . '\') ) {return true;}return false;"';
if ( !is_multisite() ) {
if ( ! current_user_can('update_themes') )
printf( '<p><strong>' . __('There is a new version of %1$s available. <a href="%2$s" class="thickbox" title="%1$s">View version %3$s details</a>.') . '</strong></p>', $theme_name, $details_url, $update['new_version']);
else if ( empty($update['package']) )
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, $update['new_version']);
else
printf( '<p><strong>' . __('There is a new version of %1$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 automatically</a>.') . '</strong></p>', $theme_name, $details_url, $update['new_version'], $update_url, $update_onclick );
}
}
}
/**
* Retrieve list of WordPress theme features (aka theme tags)
*
* @since 3.1.0
*
* @return array Array of features keyed by category with translations keyed by slug.
*/
function get_theme_feature_list() {
// Hard-coded list is used if api not accessible.
$features = array(
__('Colors') => array(
'black' => __( 'Black' ),
'blue' => __( 'Blue' ),
'brown' => __( 'Brown' ),
'gray' => __( 'Gray' ),
'green' => __( 'Green' ),
'orange' => __( 'Orange' ),
'pink' => __( 'Pink' ),
'purple' => __( 'Purple' ),
'red' => __( 'Red' ),
'silver' => __( 'Silver' ),
'tan' => __( 'Tan' ),
'white' => __( 'White' ),
'yellow' => __( 'Yellow' ),
'dark' => __( 'Dark' ),
'light' => __( 'Light ')
),
__('Columns') => array(
'one-column' => __( 'One Column' ),
'two-columns' => __( 'Two Columns' ),
'three-columns' => __( 'Three Columns' ),
'four-columns' => __( 'Four Columns' ),
'left-sidebar' => __( 'Left Sidebar' ),
'right-sidebar' => __( 'Right Sidebar' )
),
__('Width') => array(
'fixed-width' => __( 'Fixed Width' ),
'flexible-width' => __( 'Flexible Width' )
),
__( 'Features' ) => array(
'blavatar' => __( 'Blavatar' ),
'buddypress' => __( 'BuddyPress' ),
'custom-background' => __( 'Custom Background' ),
'custom-colors' => __( 'Custom Colors' ),
'custom-header' => __( 'Custom Header' ),
'custom-menu' => __( 'Custom Menu' ),
'editor-style' => __( 'Editor Style' ),
'featured-image-header' => __( 'Featured Image Header' ),
'featured-images' => __( 'Featured Images' ),
'front-page-post-form' => __( 'Front Page Posting' ),
'full-width-template' => __( 'Full Width Template' ),
'microformats' => __( 'Microformats' ),
'post-formats' => __( 'Post Formats' ),
'rtl-language-support' => __( 'RTL Language Support' ),
'sticky-post' => __( 'Sticky Post' ),
'theme-options' => __( 'Theme Options' ),
'threaded-comments' => __( 'Threaded Comments' ),
'translation-ready' => __( 'Translation Ready' )
),
__( 'Subject' ) => array(
'holiday' => __( 'Holiday' ),
'photoblogging' => __( 'Photoblogging' ),
'seasonal' => __( 'Seasonal' )
)
);
if ( !current_user_can('install_themes') )
return $features;
if ( !$feature_list = get_site_transient( 'wporg_theme_feature_list' ) )
set_site_transient( 'wporg_theme_feature_list', array( ), 10800);
if ( !$feature_list ) {
$feature_list = themes_api( 'feature_list', array( ) );
if ( is_wp_error( $feature_list ) )
return $features;
}
if ( !$feature_list )
return $features;
set_site_transient( 'wporg_theme_feature_list', $feature_list, 10800 );
$category_translations = array( 'Colors' => __('Colors'), 'Columns' => __('Columns'), 'Width' => __('Width'),
'Features' => __('Features'), 'Subject' => __('Subject') );
// Loop over the wporg canonical list and apply translations
$wporg_features = array();
foreach ( (array) $feature_list as $feature_category => $feature_items ) {
if ( isset($category_translations[$feature_category]) )
$feature_category = $category_translations[$feature_category];
$wporg_features[$feature_category] = array();
foreach ( $feature_items as $feature ) {
if ( isset($features[$feature_category][$feature]) )
$wporg_features[$feature_category][$feature] = $features[$feature_category][$feature];
else
$wporg_features[$feature_category][$feature] = $feature;
}
}
return $wporg_features;
}
/**
* Retrieve theme installer pages from WordPress Themes API.
*
* It is possible for a theme to override the Themes API result with three
* filters. Assume this is for themes, which can extend on the Theme Info to
* offer more choices. This is very powerful and must be used with care, when
* overridding the filters.
*
* The first filter, 'themes_api_args', is for the args and gives the action as
* the second parameter. The hook for 'themes_api_args' must ensure that an
* object is returned.
*
* The second filter, 'themes_api', is the result that would be returned.
*
* @since 2.8.0
*
* @param string $action
* @param array|object $args Optional. Arguments to serialize for the Theme Info API.
* @return mixed
*/
function themes_api($action, $args = null) {
if ( is_array($args) )
$args = (object)$args;
if ( !isset($args->per_page) )
$args->per_page = 24;
$args = apply_filters('themes_api_args', $args, $action); //NOTE: Ensure that an object is returned via this filter.
$res = apply_filters('themes_api', false, $action, $args); //NOTE: Allows a theme to completely override the builtin WordPress.org API.
if ( ! $res ) {
$request = wp_remote_post('http://api.wordpress.org/themes/info/1.0/', array( 'body' => array('action' => $action, 'request' => serialize($args))) );
if ( is_wp_error($request) ) {
$res = new WP_Error('themes_api_failed', __('An Unexpected HTTP Error occurred during the API request.'), $request->get_error_message() );
} else {
$res = maybe_unserialize( wp_remote_retrieve_body( $request ) );
if ( ! is_object( $res ) && ! is_array( $res ) )
$res = new WP_Error('themes_api_failed', __('An unknown error occurred during the API request.'), wp_remote_retrieve_body( $request ) );
}
}
return apply_filters('themes_api_result', $res, $action, $args);
}