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   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  ?>