wp-admin/includes/class-wp-upgrader.php

   1 <?php
   2 /**
   3  * A File upgrader class for WordPress.
   4  *
   5  * This set of classes are designed to be used to upgrade/install a local set of files on the filesystem via the Filesystem Abstraction classes.
   6  *
   7  * @link http://trac.wordpress.org/ticket/7875 consolidate plugin/theme/core upgrade/install functions
   8  *
   9  * @package WordPress
  10  * @subpackage Upgrader
  11  * @since 2.8.0
  12  */
  13
  14 /**
  15  * WordPress Upgrader class for Upgrading/Installing a local set of files via the Filesystem Abstraction classes from a Zip file.
  16  *
  17  * @TODO More Detailed docs, for methods as well.
  18  *
  19  * @package WordPress
  20  * @subpackage Upgrader
  21  * @since 2.8.0
  22  */
  23 class WP_Upgrader {
  24         var $strings = array();
  25         var $skin = null;
  26         var $result = array();
  27
  28         function __construct($skin = null) {
  29                 if ( null == $skin )
  30                         $this->skin = new WP_Upgrader_Skin();
  31                 else
  32                         $this->skin = $skin;
  33         }
  34
  35         function init() {
  36                 $this->skin->set_upgrader($this);
  37                 $this->generic_strings();
  38         }
  39
  40         function generic_strings() {
  41                 $this->strings['bad_request'] = __('Invalid Data provided.');
  42                 $this->strings['fs_unavailable'] = __('Could not access filesystem.');
  43                 $this->strings['fs_error'] = __('Filesystem error.');
  44                 $this->strings['fs_no_root_dir'] = __('Unable to locate WordPress Root directory.');
  45                 $this->strings['fs_no_content_dir'] = __('Unable to locate WordPress Content directory (wp-content).');
  46                 $this->strings['fs_no_plugins_dir'] = __('Unable to locate WordPress Plugin directory.');
  47                 $this->strings['fs_no_themes_dir'] = __('Unable to locate WordPress Theme directory.');
  48                 /* translators: %s: directory name */
  49                 $this->strings['fs_no_folder'] = __('Unable to locate needed folder (%s).');
  50
  51                 $this->strings['download_failed'] = __('Download failed.');
  52                 $this->strings['installing_package'] = __('Installing the latest version&#8230;');
  53                 $this->strings['folder_exists'] = __('Destination folder already exists.');
  54                 $this->strings['mkdir_failed'] = __('Could not create directory.');
  55                 $this->strings['incompatible_archive'] = __('The package could not be installed.');
  56
  57                 $this->strings['maintenance_start'] = __('Enabling Maintenance mode&#8230;');
  58                 $this->strings['maintenance_end'] = __('Disabling Maintenance mode&#8230;');
  59         }
  60
  61         function fs_connect( $directories = array() ) {
  62                 global $wp_filesystem;
  63
  64                 if ( false === ($credentials = $this->skin->request_filesystem_credentials()) )
  65                         return false;
  66
  67                 if ( ! WP_Filesystem($credentials) ) {
  68                         $error = true;
  69                         if ( is_object($wp_filesystem) && $wp_filesystem->errors->get_error_code() )
  70                                 $error = $wp_filesystem->errors;
  71                         $this->skin->request_filesystem_credentials($error); //Failed to connect, Error and request again
  72                         return false;
  73                 }
  74
  75                 if ( ! is_object($wp_filesystem) )
  76                         return new WP_Error('fs_unavailable', $this->strings['fs_unavailable'] );
  77
  78                 if ( is_wp_error($wp_filesystem->errors) && $wp_filesystem->errors->get_error_code() )
  79                         return new WP_Error('fs_error', $this->strings['fs_error'], $wp_filesystem->errors);
  80
  81                 foreach ( (array)$directories as $dir ) {
  82                         switch ( $dir ) {
  83                                 case ABSPATH:
  84                                         if ( ! $wp_filesystem->abspath() )
  85                                                 return new WP_Error('fs_no_root_dir', $this->strings['fs_no_root_dir']);
  86                                         break;
  87                                 case WP_CONTENT_DIR:
  88                                         if ( ! $wp_filesystem->wp_content_dir() )
  89                                                 return new WP_Error('fs_no_content_dir', $this->strings['fs_no_content_dir']);
  90                                         break;
  91                                 case WP_PLUGIN_DIR:
  92                                         if ( ! $wp_filesystem->wp_plugins_dir() )
  93                                                 return new WP_Error('fs_no_plugins_dir', $this->strings['fs_no_plugins_dir']);
  94                                         break;
  95                                 case WP_CONTENT_DIR . '/themes':
  96                                         if ( ! $wp_filesystem->find_folder(WP_CONTENT_DIR . '/themes') )
  97                                                 return new WP_Error('fs_no_themes_dir', $this->strings['fs_no_themes_dir']);
  98                                         break;
  99                                 default:
 100                                         if ( ! $wp_filesystem->find_folder($dir) )
 101                                                 return new WP_Error('fs_no_folder', sprintf($this->strings['fs_no_folder'], $dir));
 102                                         break;
 103                         }
 104                 }
 105                 return true;
 106         } //end fs_connect();
 107
 108         function download_package($package) {
 109
 110                 if ( ! preg_match('!^(http|https|ftp)://!i', $package) && file_exists($package) ) //Local file or remote?
 111                         return $package; //must be a local file..
 112
 113                 if ( empty($package) )
 114                         return new WP_Error('no_package', $this->strings['no_package']);
 115
 116                 $this->skin->feedback('downloading_package', $package);
 117
 118                 $download_file = download_url($package);
 119
 120                 if ( is_wp_error($download_file) )
 121                         return new WP_Error('download_failed', $this->strings['download_failed'], $download_file->get_error_message());
 122
 123                 return $download_file;
 124         }
 125
 126         function unpack_package($package, $delete_package = true) {
 127                 global $wp_filesystem;
 128
 129                 $this->skin->feedback('unpack_package');
 130
 131                 $upgrade_folder = $wp_filesystem->wp_content_dir() . 'upgrade/';
 132
 133                 //Clean up contents of upgrade directory beforehand.
 134                 $upgrade_files = $wp_filesystem->dirlist($upgrade_folder);
 135                 if ( !empty($upgrade_files) ) {
 136                         foreach ( $upgrade_files as $file )
 137                                 $wp_filesystem->delete($upgrade_folder . $file['name'], true);
 138                 }
 139
 140                 //We need a working directory
 141                 $working_dir = $upgrade_folder . basename($package, '.zip');
 142
 143                 // Clean up working directory
 144                 if ( $wp_filesystem->is_dir($working_dir) )
 145                         $wp_filesystem->delete($working_dir, true);
 146
 147                 // Unzip package to working directory
 148                 $result = unzip_file($package, $working_dir); //TODO optimizations, Copy when Move/Rename would suffice?
 149
 150                 // Once extracted, delete the package if required.
 151                 if ( $delete_package )
 152                         unlink($package);
 153
 154                 if ( is_wp_error($result) ) {
 155                         $wp_filesystem->delete($working_dir, true);
 156                         if ( 'incompatible_archive' == $result->get_error_code() ) {
 157                                 return new WP_Error( 'incompatible_archive', $this->strings['incompatible_archive'], $result->get_error_data() );
 158                         }
 159                         return $result;
 160                 }
 161
 162                 return $working_dir;
 163         }
 164
 165         function install_package($args = array()) {
 166                 global $wp_filesystem;
 167                 $defaults = array( 'source' => '', 'destination' => '', //Please always pass these
 168                                                 'clear_destination' => false, 'clear_working' => false,
 169                                                 'hook_extra' => array());
 170
 171                 $args = wp_parse_args($args, $defaults);
 172                 extract($args);
 173
 174                 @set_time_limit( 300 );
 175
 176                 if ( empty($source) || empty($destination) )
 177                         return new WP_Error('bad_request', $this->strings['bad_request']);
 178
 179                 $this->skin->feedback('installing_package');
 180
 181                 $res = apply_filters('upgrader_pre_install', true, $hook_extra);
 182                 if ( is_wp_error($res) )
 183                         return $res;
 184
 185                 //Retain the Original source and destinations
 186                 $remote_source = $source;
 187                 $local_destination = $destination;
 188
 189                 $source_files = array_keys( $wp_filesystem->dirlist($remote_source) );
 190                 $remote_destination = $wp_filesystem->find_folder($local_destination);
 191
 192                 //Locate which directory to copy to the new folder, This is based on the actual folder holding the files.
 193                 if ( 1 == count($source_files) && $wp_filesystem->is_dir( trailingslashit($source) . $source_files[0] . '/') ) //Only one folder? Then we want its contents.
 194                         $source = trailingslashit($source) . trailingslashit($source_files[0]);
 195                 elseif ( count($source_files) == 0 )
 196                         return new WP_Error( 'incompatible_archive', $this->strings['incompatible_archive'], __( 'The plugin contains no files.' ) ); //There are no files?
 197                 else //Its only a single file, The upgrader will use the foldername of this file as the destination folder. foldername is based on zip filename.
 198                         $source = trailingslashit($source);
 199
 200                 //Hook ability to change the source file location..
 201                 $source = apply_filters('upgrader_source_selection', $source, $remote_source, $this);
 202                 if ( is_wp_error($source) )
 203                         return $source;
 204
 205                 //Has the source location changed? If so, we need a new source_files list.
 206                 if ( $source !== $remote_source )
 207                         $source_files = array_keys( $wp_filesystem->dirlist($source) );
 208
 209                 //Protection against deleting files in any important base directories.
 210                 if ( in_array( $destination, array(ABSPATH, WP_CONTENT_DIR, WP_PLUGIN_DIR, WP_CONTENT_DIR . '/themes') ) ) {
 211                         $remote_destination = trailingslashit($remote_destination) . trailingslashit(basename($source));
 212                         $destination = trailingslashit($destination) . trailingslashit(basename($source));
 213                 }
 214
 215                 if ( $clear_destination ) {
 216                         //We're going to clear the destination if there's something there
 217                         $this->skin->feedback('remove_old');
 218                         $removed = true;
 219                         if ( $wp_filesystem->exists($remote_destination) )
 220                                 $removed = $wp_filesystem->delete($remote_destination, true);
 221                         $removed = apply_filters('upgrader_clear_destination', $removed, $local_destination, $remote_destination, $hook_extra);
 222
 223                         if ( is_wp_error($removed) )
 224                                 return $removed;
 225                         else if ( ! $removed )
 226                                 return new WP_Error('remove_old_failed', $this->strings['remove_old_failed']);
 227                 } elseif ( $wp_filesystem->exists($remote_destination) ) {
 228                         //If we're not clearing the destination folder and something exists there already, Bail.
 229                         //But first check to see if there are actually any files in the folder.
 230                         $_files = $wp_filesystem->dirlist($remote_destination);
 231                         if ( ! empty($_files) ) {
 232                                 $wp_filesystem->delete($remote_source, true); //Clear out the source files.
 233                                 return new WP_Error('folder_exists', $this->strings['folder_exists'], $remote_destination );
 234                         }
 235                 }
 236
 237                 //Create destination if needed
 238                 if ( !$wp_filesystem->exists($remote_destination) )
 239                         if ( !$wp_filesystem->mkdir($remote_destination, FS_CHMOD_DIR) )
 240                                 return new WP_Error('mkdir_failed', $this->strings['mkdir_failed'], $remote_destination);
 241
 242                 // Copy new version of item into place.
 243                 $result = copy_dir($source, $remote_destination);
 244                 if ( is_wp_error($result) ) {
 245                         if ( $clear_working )
 246                                 $wp_filesystem->delete($remote_source, true);
 247                         return $result;
 248                 }
 249
 250                 //Clear the Working folder?
 251                 if ( $clear_working )
 252                         $wp_filesystem->delete($remote_source, true);
 253
 254                 $destination_name = basename( str_replace($local_destination, '', $destination) );
 255                 if ( '.' == $destination_name )
 256                         $destination_name = '';
 257
 258                 $this->result = compact('local_source', 'source', 'source_name', 'source_files', 'destination', 'destination_name', 'local_destination', 'remote_destination', 'clear_destination', 'delete_source_dir');
 259
 260                 $res = apply_filters('upgrader_post_install', true, $hook_extra, $this->result);
 261                 if ( is_wp_error($res) ) {
 262                         $this->result = $res;
 263                         return $res;
 264                 }
 265
 266                 //Bombard the calling function will all the info which we've just used.
 267                 return $this->result;
 268         }
 269
 270         function run($options) {
 271
 272                 $defaults = array(      'package' => '', //Please always pass this.
 273                                                         'destination' => '', //And this
 274                                                         'clear_destination' => false,
 275                                                         'clear_working' => true,
 276                                                         'is_multi' => false,
 277                                                         'hook_extra' => array() //Pass any extra $hook_extra args here, this will be passed to any hooked filters.
 278                                                 );
 279
 280                 $options = wp_parse_args($options, $defaults);
 281                 extract($options);
 282
 283                 //Connect to the Filesystem first.
 284                 $res = $this->fs_connect( array(WP_CONTENT_DIR, $destination) );
 285                 if ( ! $res ) //Mainly for non-connected filesystem.
 286                         return false;
 287
 288                 if ( is_wp_error($res) ) {
 289                         $this->skin->error($res);
 290                         return $res;
 291                 }
 292
 293                 if ( !$is_multi ) // call $this->header separately if running multiple times
 294                         $this->skin->header();
 295
 296                 $this->skin->before();
 297
 298                 //Download the package (Note, This just returns the filename of the file if the package is a local file)
 299                 $download = $this->download_package( $package );
 300                 if ( is_wp_error($download) ) {
 301                         $this->skin->error($download);
 302                         $this->skin->after();
 303                         return $download;
 304                 }
 305
 306                 $delete_package = ($download != $package); // Do not delete a "local" file
 307
 308                 //Unzips the file into a temporary directory
 309                 $working_dir = $this->unpack_package( $download, $delete_package );
 310                 if ( is_wp_error($working_dir) ) {
 311                         $this->skin->error($working_dir);
 312                         $this->skin->after();
 313                         return $working_dir;
 314                 }
 315
 316                 //With the given options, this installs it to the destination directory.
 317                 $result = $this->install_package( array(
 318                                                                                         'source' => $working_dir,
 319                                                                                         'destination' => $destination,
 320                                                                                         'clear_destination' => $clear_destination,
 321                                                                                         'clear_working' => $clear_working,
 322                                                                                         'hook_extra' => $hook_extra
 323                                                                                 ) );
 324                 $this->skin->set_result($result);
 325                 if ( is_wp_error($result) ) {
 326                         $this->skin->error($result);
 327                         $this->skin->feedback('process_failed');
 328                 } else {
 329                         //Install Succeeded
 330                         $this->skin->feedback('process_success');
 331                 }
 332                 $this->skin->after();
 333
 334                 if ( !$is_multi )
 335                         $this->skin->footer();
 336
 337                 return $result;
 338         }
 339
 340         function maintenance_mode($enable = false) {
 341                 global $wp_filesystem;
 342                 $file = $wp_filesystem->abspath() . '.maintenance';
 343                 if ( $enable ) {
 344                         $this->skin->feedback('maintenance_start');
 345                         // Create maintenance file to signal that we are upgrading
 346                         $maintenance_string = '<?php $upgrading = ' . time() . '; ?>';
 347                         $wp_filesystem->delete($file);
 348                         $wp_filesystem->put_contents($file, $maintenance_string, FS_CHMOD_FILE);
 349                 } else if ( !$enable && $wp_filesystem->exists($file) ) {
 350                         $this->skin->feedback('maintenance_end');
 351                         $wp_filesystem->delete($file);
 352                 }
 353         }
 354
 355 }
 356
 357 /**
 358  * Plugin Upgrader class for WordPress Plugins, It is designed to upgrade/install plugins from a local zip, remote zip URL, or uploaded zip file.
 359  *
 360  * @TODO More Detailed docs, for methods as well.
 361  *
 362  * @package WordPress
 363  * @subpackage Upgrader
 364  * @since 2.8.0
 365  */
 366 class Plugin_Upgrader extends WP_Upgrader {
 367
 368         var $result;
 369         var $bulk = false;
 370         var $show_before = '';
 371
 372         function upgrade_strings() {
 373                 $this->strings['up_to_date'] = __('The plugin is at the latest version.');
 374                 $this->strings['no_package'] = __('Update package not available.');
 375                 $this->strings['downloading_package'] = __('Downloading update from <span class="code">%s</span>&#8230;');
 376                 $this->strings['unpack_package'] = __('Unpacking the update&#8230;');
 377                 $this->strings['deactivate_plugin'] = __('Deactivating the plugin&#8230;');
 378                 $this->strings['remove_old'] = __('Removing the old version of the plugin&#8230;');
 379                 $this->strings['remove_old_failed'] = __('Could not remove the old plugin.');
 380                 $this->strings['process_failed'] = __('Plugin update failed.');
 381                 $this->strings['process_success'] = __('Plugin updated successfully.');
 382         }
 383
 384         function install_strings() {
 385                 $this->strings['no_package'] = __('Install package not available.');
 386                 $this->strings['downloading_package'] = __('Downloading install package from <span class="code">%s</span>&#8230;');
 387                 $this->strings['unpack_package'] = __('Unpacking the package&#8230;');
 388                 $this->strings['installing_package'] = __('Installing the plugin&#8230;');
 389                 $this->strings['process_failed'] = __('Plugin install failed.');
 390                 $this->strings['process_success'] = __('Plugin installed successfully.');
 391         }
 392
 393         function install($package) {
 394
 395                 $this->init();
 396                 $this->install_strings();
 397
 398                 add_filter('upgrader_source_selection', array(&$this, 'check_package') );
 399
 400                 $this->run(array(
 401                                         'package' => $package,
 402                                         'destination' => WP_PLUGIN_DIR,
 403                                         'clear_destination' => false, //Do not overwrite files.
 404                                         'clear_working' => true,
 405                                         'hook_extra' => array()
 406                                         ));
 407
 408                 remove_filter('upgrader_source_selection', array(&$this, 'check_package') );
 409
 410                 if ( ! $this->result || is_wp_error($this->result) )
 411                         return $this->result;
 412
 413                 // Force refresh of plugin update information
 414                 delete_site_transient('update_plugins');
 415
 416                 return true;
 417         }
 418
 419         function upgrade($plugin) {
 420
 421                 $this->init();
 422                 $this->upgrade_strings();
 423
 424                 $current = get_site_transient( 'update_plugins' );
 425                 if ( !isset( $current->response[ $plugin ] ) ) {
 426                         $this->skin->before();
 427                         $this->skin->set_result(false);
 428                         $this->skin->error('up_to_date');
 429                         $this->skin->after();
 430                         return false;
 431                 }
 432
 433                 // Get the URL to the zip file
 434                 $r = $current->response[ $plugin ];
 435
 436                 add_filter('upgrader_pre_install', array(&$this, 'deactivate_plugin_before_upgrade'), 10, 2);
 437                 add_filter('upgrader_clear_destination', array(&$this, 'delete_old_plugin'), 10, 4);
 438                 //'source_selection' => array(&$this, 'source_selection'), //there's a trac ticket to move up the directory for zip's which are made a bit differently, useful for non-.org plugins.
 439
 440                 $this->run(array(
 441                                         'package' => $r->package,
 442                                         'destination' => WP_PLUGIN_DIR,
 443                                         'clear_destination' => true,
 444                                         'clear_working' => true,
 445                                         'hook_extra' => array(
 446                                                                 'plugin' => $plugin
 447                                         )
 448                                 ));
 449
 450                 // Cleanup our hooks, in case something else does a upgrade on this connection.
 451                 remove_filter('upgrader_pre_install', array(&$this, 'deactivate_plugin_before_upgrade'));
 452                 remove_filter('upgrader_clear_destination', array(&$this, 'delete_old_plugin'));
 453
 454                 if ( ! $this->result || is_wp_error($this->result) )
 455                         return $this->result;
 456
 457                 // Force refresh of plugin update information
 458                 delete_site_transient('update_plugins');
 459         }
 460
 461         function bulk_upgrade($plugins) {
 462
 463                 $this->init();
 464                 $this->bulk = true;
 465                 $this->upgrade_strings();
 466
 467                 $current = get_site_transient( 'update_plugins' );
 468
 469                 add_filter('upgrader_clear_destination', array(&$this, 'delete_old_plugin'), 10, 4);
 470
 471                 $this->skin->header();
 472
 473                 // Connect to the Filesystem first.
 474                 $res = $this->fs_connect( array(WP_CONTENT_DIR, WP_PLUGIN_DIR) );
 475                 if ( ! $res ) {
 476                         $this->skin->footer();
 477                         return false;
 478                 }
 479
 480                 $this->skin->bulk_header();
 481
 482                 // Only start maintenance mode if running in Multisite OR the plugin is in use
 483                 $maintenance = is_multisite(); // @TODO: This should only kick in for individual sites if at all possible.
 484                 foreach ( $plugins as $plugin )
 485                         $maintenance = $maintenance || (is_plugin_active($plugin) && isset($current->response[ $plugin ]) ); // Only activate Maintenance mode if a plugin is active AND has an update available
 486                 if ( $maintenance )
 487                         $this->maintenance_mode(true);
 488
 489                 $results = array();
 490
 491                 $this->update_count = count($plugins);
 492                 $this->update_current = 0;
 493                 foreach ( $plugins as $plugin ) {
 494                         $this->update_current++;
 495                         $this->skin->plugin_info = get_plugin_data( WP_PLUGIN_DIR . '/' . $plugin, false, true);
 496
 497                         if ( !isset( $current->response[ $plugin ] ) ) {
 498                                 $this->skin->set_result(false);
 499                                 $this->skin->before();
 500                                 $this->skin->error('up_to_date');
 501                                 $this->skin->after();
 502                                 $results[$plugin] = false;
 503                                 continue;
 504                         }
 505
 506                         // Get the URL to the zip file
 507                         $r = $current->response[ $plugin ];
 508
 509                         $this->skin->plugin_active = is_plugin_active($plugin);
 510
 511                         $result = $this->run(array(
 512                                                 'package' => $r->package,
 513                                                 'destination' => WP_PLUGIN_DIR,
 514                                                 'clear_destination' => true,
 515                                                 'clear_working' => true,
 516                                                 'is_multi' => true,
 517                                                 'hook_extra' => array(
 518                                                                         'plugin' => $plugin
 519                                                 )
 520                                         ));
 521
 522                         $results[$plugin] = $this->result;
 523
 524                         // Prevent credentials auth screen from displaying multiple times
 525                         if ( false === $result )
 526                                 break;
 527                 } //end foreach $plugins
 528
 529                 $this->maintenance_mode(false);
 530
 531                 $this->skin->bulk_footer();
 532
 533                 $this->skin->footer();
 534
 535                 // Cleanup our hooks, in case something else does a upgrade on this connection.
 536                 remove_filter('upgrader_clear_destination', array(&$this, 'delete_old_plugin'));
 537
 538                 // Force refresh of plugin update information
 539                 delete_site_transient('update_plugins');
 540
 541                 return $results;
 542         }
 543
 544         function check_package($source) {
 545                 global $wp_filesystem;
 546
 547                 if ( is_wp_error($source) )
 548                         return $source;
 549
 550                 $working_directory = str_replace( $wp_filesystem->wp_content_dir(), trailingslashit(WP_CONTENT_DIR), $source);
 551                 if ( ! is_dir($working_directory) ) // Sanity check, if the above fails, lets not prevent installation.
 552                         return $source;
 553
 554                 // Check the folder contains at least 1 valid plugin.
 555                 $plugins_found = false;
 556                 foreach ( glob( $working_directory . '*.php' ) as $file ) {
 557                         $info = get_plugin_data($file, false, false);
 558                         if ( !empty( $info['Name'] ) ) {
 559                                 $plugins_found = true;
 560                                 break;
 561                         }
 562                 }
 563
 564                 if ( ! $plugins_found )
 565                         return new WP_Error( 'incompatible_archive', $this->strings['incompatible_archive'], __('No valid plugins were found.') );
 566
 567                 return $source;
 568         }
 569
 570         //return plugin info.
 571         function plugin_info() {
 572                 if ( ! is_array($this->result) )
 573                         return false;
 574                 if ( empty($this->result['destination_name']) )
 575                         return false;
 576
 577                 $plugin = get_plugins('/' . $this->result['destination_name']); //Ensure to pass with leading slash
 578                 if ( empty($plugin) )
 579                         return false;
 580
 581                 $pluginfiles = array_keys($plugin); //Assume the requested plugin is the first in the list
 582
 583                 return $this->result['destination_name'] . '/' . $pluginfiles[0];
 584         }
 585
 586         //Hooked to pre_install
 587         function deactivate_plugin_before_upgrade($return, $plugin) {
 588
 589                 if ( is_wp_error($return) ) //Bypass.
 590                         return $return;
 591
 592                 $plugin = isset($plugin['plugin']) ? $plugin['plugin'] : '';
 593                 if ( empty($plugin) )
 594                         return new WP_Error('bad_request', $this->strings['bad_request']);
 595
 596                 if ( is_plugin_active($plugin) ) {
 597                         $this->skin->feedback('deactivate_plugin');
 598                         //Deactivate the plugin silently, Prevent deactivation hooks from running.
 599                         deactivate_plugins($plugin, true);
 600                 }
 601         }
 602
 603         //Hooked to upgrade_clear_destination
 604         function delete_old_plugin($removed, $local_destination, $remote_destination, $plugin) {
 605                 global $wp_filesystem;
 606
 607                 if ( is_wp_error($removed) )
 608                         return $removed; //Pass errors through.
 609
 610                 $plugin = isset($plugin['plugin']) ? $plugin['plugin'] : '';
 611                 if ( empty($plugin) )
 612                         return new WP_Error('bad_request', $this->strings['bad_request']);
 613
 614                 $plugins_dir = $wp_filesystem->wp_plugins_dir();
 615                 $this_plugin_dir = trailingslashit( dirname($plugins_dir . $plugin) );
 616
 617                 if ( ! $wp_filesystem->exists($this_plugin_dir) ) //If its already vanished.
 618                         return $removed;
 619
 620                 // If plugin is in its own directory, recursively delete the directory.
 621                 if ( strpos($plugin, '/') && $this_plugin_dir != $plugins_dir ) //base check on if plugin includes directory separator AND that its not the root plugin folder
 622                         $deleted = $wp_filesystem->delete($this_plugin_dir, true);
 623                 else
 624                         $deleted = $wp_filesystem->delete($plugins_dir . $plugin);
 625
 626                 if ( ! $deleted )
 627                         return new WP_Error('remove_old_failed', $this->strings['remove_old_failed']);
 628
 629                 return true;
 630         }
 631 }
 632
 633 /**
 634  * Theme Upgrader class for WordPress Themes, It is designed to upgrade/install themes from a local zip, remote zip URL, or uploaded zip file.
 635  *
 636  * @TODO More Detailed docs, for methods as well.
 637  *
 638  * @package WordPress
 639  * @subpackage Upgrader
 640  * @since 2.8.0
 641  */
 642 class Theme_Upgrader extends WP_Upgrader {
 643
 644         var $result;
 645         var $bulk = false;
 646
 647         function upgrade_strings() {
 648                 $this->strings['up_to_date'] = __('The theme is at the latest version.');
 649                 $this->strings['no_package'] = __('Update package not available.');
 650                 $this->strings['downloading_package'] = __('Downloading update from <span class="code">%s</span>&#8230;');
 651                 $this->strings['unpack_package'] = __('Unpacking the update&#8230;');
 652                 $this->strings['remove_old'] = __('Removing the old version of the theme&#8230;');
 653                 $this->strings['remove_old_failed'] = __('Could not remove the old theme.');
 654                 $this->strings['process_failed'] = __('Theme update failed.');
 655                 $this->strings['process_success'] = __('Theme updated successfully.');
 656         }
 657
 658         function install_strings() {
 659                 $this->strings['no_package'] = __('Install package not available.');
 660                 $this->strings['downloading_package'] = __('Downloading install package from <span class="code">%s</span>&#8230;');
 661                 $this->strings['unpack_package'] = __('Unpacking the package&#8230;');
 662                 $this->strings['installing_package'] = __('Installing the theme&#8230;');
 663                 $this->strings['process_failed'] = __('Theme install failed.');
 664                 $this->strings['process_success'] = __('Theme installed successfully.');
 665         }
 666
 667         function install($package) {
 668
 669                 $this->init();
 670                 $this->install_strings();
 671
 672                 add_filter('upgrader_source_selection', array(&$this, 'check_package') );
 673
 674                 $options = array(
 675                                                 'package' => $package,
 676                                                 'destination' => WP_CONTENT_DIR . '/themes',
 677                                                 'clear_destination' => false, //Do not overwrite files.
 678                                                 'clear_working' => true
 679                                                 );
 680
 681                 $this->run($options);
 682
 683                 remove_filter('upgrader_source_selection', array(&$this, 'check_package') );
 684
 685                 if ( ! $this->result || is_wp_error($this->result) )
 686                         return $this->result;
 687
 688                 // Force refresh of theme update information
 689                 delete_site_transient('update_themes');
 690
 691                 return true;
 692         }
 693
 694         function upgrade($theme) {
 695
 696                 $this->init();
 697                 $this->upgrade_strings();
 698
 699                 // Is an update available?
 700                 $current = get_site_transient( 'update_themes' );
 701                 if ( !isset( $current->response[ $theme ] ) ) {
 702                         $this->skin->before();
 703                         $this->skin->set_result(false);
 704                         $this->skin->error('up_to_date');
 705                         $this->skin->after();
 706                         return false;
 707                 }
 708
 709                 $r = $current->response[ $theme ];
 710
 711                 add_filter('upgrader_pre_install', array(&$this, 'current_before'), 10, 2);
 712                 add_filter('upgrader_post_install', array(&$this, 'current_after'), 10, 2);
 713                 add_filter('upgrader_clear_destination', array(&$this, 'delete_old_theme'), 10, 4);
 714
 715                 $options = array(
 716                                                 'package' => $r['package'],
 717                                                 'destination' => WP_CONTENT_DIR . '/themes',
 718                                                 'clear_destination' => true,
 719                                                 'clear_working' => true,
 720                                                 'hook_extra' => array(
 721                                                                                         'theme' => $theme
 722                                                                                         )
 723                                                 );
 724
 725                 $this->run($options);
 726
 727                 remove_filter('upgrader_pre_install', array(&$this, 'current_before'), 10, 2);
 728                 remove_filter('upgrader_post_install', array(&$this, 'current_after'), 10, 2);
 729                 remove_filter('upgrader_clear_destination', array(&$this, 'delete_old_theme'), 10, 4);
 730
 731                 if ( ! $this->result || is_wp_error($this->result) )
 732                         return $this->result;
 733
 734                 // Force refresh of theme update information
 735                 delete_site_transient('update_themes');
 736
 737                 return true;
 738         }
 739
 740         function bulk_upgrade($themes) {
 741
 742                 $this->init();
 743                 $this->bulk = true;
 744                 $this->upgrade_strings();
 745
 746                 $current = get_site_transient( 'update_themes' );
 747
 748                 add_filter('upgrader_pre_install', array(&$this, 'current_before'), 10, 2);
 749                 add_filter('upgrader_post_install', array(&$this, 'current_after'), 10, 2);
 750                 add_filter('upgrader_clear_destination', array(&$this, 'delete_old_theme'), 10, 4);
 751
 752                 $this->skin->header();
 753
 754                 // Connect to the Filesystem first.
 755                 $res = $this->fs_connect( array(WP_CONTENT_DIR) );
 756                 if ( ! $res ) {
 757                         $this->skin->footer();
 758                         return false;
 759                 }
 760
 761                 $this->skin->bulk_header();
 762
 763                 // Only start maintenance mode if running in Multisite OR the theme is in use
 764                 $maintenance = is_multisite(); // @TODO: This should only kick in for individual sites if at all possible.
 765                 foreach ( $themes as $theme )
 766                         $maintenance = $maintenance || $theme == get_stylesheet() || $theme == get_template();
 767                 if ( $maintenance )
 768                         $this->maintenance_mode(true);
 769
 770                 $results = array();
 771
 772                 $this->update_count = count($themes);
 773                 $this->update_current = 0;
 774                 foreach ( $themes as $theme ) {
 775                         $this->update_current++;
 776
 777                         if ( !isset( $current->response[ $theme ] ) ) {
 778                                 $this->skin->set_result(false);
 779                                 $this->skin->before();
 780                                 $this->skin->error('up_to_date');
 781                                 $this->skin->after();
 782                                 $results[$theme] = false;
 783                                 continue;
 784                         }
 785
 786                         $this->skin->theme_info = $this->theme_info($theme);
 787
 788                         // Get the URL to the zip file
 789                         $r = $current->response[ $theme ];
 790
 791                         $options = array(
 792                                                         'package' => $r['package'],
 793                                                         'destination' => WP_CONTENT_DIR . '/themes',
 794                                                         'clear_destination' => true,
 795                                                         'clear_working' => true,
 796                                                         'hook_extra' => array(
 797                                                                                                 'theme' => $theme
 798                                                                                                 )
 799                                                         );
 800
 801                         $result = $this->run($options);
 802
 803                         $results[$theme] = $this->result;
 804
 805                         // Prevent credentials auth screen from displaying multiple times
 806                         if ( false === $result )
 807                                 break;
 808                 } //end foreach $plugins
 809
 810                 $this->maintenance_mode(false);
 811
 812                 $this->skin->bulk_footer();
 813
 814                 $this->skin->footer();
 815
 816                 // Cleanup our hooks, in case something else does a upgrade on this connection.
 817                 remove_filter('upgrader_pre_install', array(&$this, 'current_before'), 10, 2);
 818                 remove_filter('upgrader_post_install', array(&$this, 'current_after'), 10, 2);
 819                 remove_filter('upgrader_clear_destination', array(&$this, 'delete_old_theme'), 10, 4);
 820
 821                 // Force refresh of theme update information
 822                 delete_site_transient('update_themes');
 823
 824                 return $results;
 825         }
 826
 827         function check_package($source) {
 828                 global $wp_filesystem;
 829
 830                 if ( is_wp_error($source) )
 831                         return $source;
 832
 833                 // Check the folder contains a valid theme
 834                 $working_directory = str_replace( $wp_filesystem->wp_content_dir(), trailingslashit(WP_CONTENT_DIR), $source);
 835                 if ( ! is_dir($working_directory) ) // Sanity check, if the above fails, lets not prevent installation.
 836                         return $source;
 837
 838                 if ( ! file_exists( $working_directory . 'style.css' ) ) // A proper archive should have a style.css file in the single subdirectory
 839                         return new WP_Error( 'incompatible_archive', $this->strings['incompatible_archive'], __('The theme is missing the <code>style.css</code> stylesheet.') );
 840
 841                 $info = get_theme_data( $working_directory . 'style.css' );
 842                 if ( empty($info['Name']) )
 843                         return new WP_Error( 'incompatible_archive', $this->strings['incompatible_archive'], __("The <code>style.css</code> stylesheet doesn't contain a valid theme header.") );
 844
 845                 if ( empty($info['Template']) && ! file_exists( $working_directory . 'index.php' ) ) // If no template is set, it must have at least an index.php to be legit.
 846                         return new WP_Error( 'incompatible_archive', $this->strings['incompatible_archive'], __('The theme is missing the <code>index.php</code> file.') );
 847
 848                 return $source;
 849         }
 850
 851         function current_before($return, $theme) {
 852
 853                 if ( is_wp_error($return) )
 854                         return $return;
 855
 856                 $theme = isset($theme['theme']) ? $theme['theme'] : '';
 857
 858                 if ( $theme != get_stylesheet() ) //If not current
 859                         return $return;
 860                 //Change to maintenance mode now.
 861                 if ( ! $this->bulk )
 862                         $this->maintenance_mode(true);
 863
 864                 return $return;
 865         }
 866
 867         function current_after($return, $theme) {
 868                 if ( is_wp_error($return) )
 869                         return $return;
 870
 871                 $theme = isset($theme['theme']) ? $theme['theme'] : '';
 872
 873                 if ( $theme != get_stylesheet() ) //If not current
 874                         return $return;
 875
 876                 //Ensure stylesheet name hasnt changed after the upgrade:
 877                 // @TODO: Note, This doesn't handle the Template changing, or the Template name changing.
 878                 if ( $theme == get_stylesheet() && $theme != $this->result['destination_name'] ) {
 879                         $theme_info = $this->theme_info();
 880                         $stylesheet = $this->result['destination_name'];
 881                         $template = !empty($theme_info['Template']) ? $theme_info['Template'] : $stylesheet;
 882                         switch_theme($template, $stylesheet, true);
 883                 }
 884
 885                 //Time to remove maintenance mode
 886                 if ( ! $this->bulk )
 887                         $this->maintenance_mode(false);
 888                 return $return;
 889         }
 890
 891         function delete_old_theme($removed, $local_destination, $remote_destination, $theme) {
 892                 global $wp_filesystem;
 893
 894                 $theme = isset($theme['theme']) ? $theme['theme'] : '';
 895
 896                 if ( is_wp_error($removed) || empty($theme) )
 897                         return $removed; //Pass errors through.
 898
 899                 $themes_dir = $wp_filesystem->wp_themes_dir();
 900                 if ( $wp_filesystem->exists( trailingslashit($themes_dir) . $theme ) )
 901                         if ( ! $wp_filesystem->delete( trailingslashit($themes_dir) . $theme, true ) )
 902                                 return false;
 903                 return true;
 904         }
 905
 906         function theme_info($theme = null) {
 907
 908                 if ( empty($theme) ) {
 909                         if ( !empty($this->result['destination_name']) )
 910                                 $theme = $this->result['destination_name'];
 911                         else
 912                                 return false;
 913                 }
 914                 return get_theme_data(WP_CONTENT_DIR . '/themes/' . $theme . '/style.css');
 915         }
 916
 917 }
 918
 919 /**
 920  * Core Upgrader class for WordPress. It allows for WordPress to upgrade itself in combination with the wp-admin/includes/update-core.php file
 921  *
 922  * @TODO More Detailed docs, for methods as well.
 923  *
 924  * @package WordPress
 925  * @subpackage Upgrader
 926  * @since 2.8.0
 927  */
 928 class Core_Upgrader extends WP_Upgrader {
 929
 930         function upgrade_strings() {
 931                 $this->strings['up_to_date'] = __('WordPress is at the latest version.');
 932                 $this->strings['no_package'] = __('Update package not available.');
 933                 $this->strings['downloading_package'] = __('Downloading update from <span class="code">%s</span>&#8230;');
 934                 $this->strings['unpack_package'] = __('Unpacking the update&#8230;');
 935                 $this->strings['copy_failed'] = __('Could not copy files.');
 936         }
 937
 938         function upgrade($current) {
 939                 global $wp_filesystem, $wp_version;
 940
 941                 $this->init();
 942                 $this->upgrade_strings();
 943
 944                 if ( !empty($feedback) )
 945                         add_filter('update_feedback', $feedback);
 946
 947                 // Is an update available?
 948                 if ( !isset( $current->response ) || $current->response == 'latest' )
 949                         return new WP_Error('up_to_date', $this->strings['up_to_date']);
 950
 951                 $res = $this->fs_connect( array(ABSPATH, WP_CONTENT_DIR) );
 952                 if ( is_wp_error($res) )
 953                         return $res;
 954
 955                 $wp_dir = trailingslashit($wp_filesystem->abspath());
 956
 957                 // If partial update is returned from the API, use that, unless we're doing a reinstall.
 958                 // If we cross the new_bundled version number, then use the new_bundled zip.
 959                 // Don't though if the constant is set to skip bundled items.
 960                 // If the API returns a no_content zip, go with it. Finally, default to the full zip.
 961                 if ( $current->packages->partial && 'reinstall' != $current->response && $wp_version == $current->partial_version )
 962                         $to_download = 'partial';
 963                 elseif ( $current->packages->new_bundled && version_compare( $wp_version, $current->new_bundled, '<' )
 964                         && ( ! defined( 'CORE_UPGRADE_SKIP_NEW_BUNDLED' ) || ! CORE_UPGRADE_SKIP_NEW_BUNDLED ) )
 965                         $to_download = 'new_bundled';
 966                 elseif ( $current->packages->no_content )
 967                         $to_download = 'no_content';
 968                 else
 969                         $to_download = 'full';
 970
 971                 $download = $this->download_package( $current->packages->$to_download );
 972                 if ( is_wp_error($download) )
 973                         return $download;
 974
 975                 $working_dir = $this->unpack_package( $download );
 976                 if ( is_wp_error($working_dir) )
 977                         return $working_dir;
 978
 979                 // Copy update-core.php from the new version into place.
 980                 if ( !$wp_filesystem->copy($working_dir . '/wordpress/wp-admin/includes/update-core.php', $wp_dir . 'wp-admin/includes/update-core.php', true) ) {
 981                         $wp_filesystem->delete($working_dir, true);
 982                         return new WP_Error('copy_failed', $this->strings['copy_failed']);
 983                 }
 984                 $wp_filesystem->chmod($wp_dir . 'wp-admin/includes/update-core.php', FS_CHMOD_FILE);
 985
 986                 require(ABSPATH . 'wp-admin/includes/update-core.php');
 987
 988                 return update_core($working_dir, $wp_dir);
 989         }
 990
 991 }
 992
 993 /**
 994  * Generic Skin for the WordPress Upgrader classes. This skin is designed to be extended for specific purposes.
 995  *
 996  * @TODO More Detailed docs, for methods as well.
 997  *
 998  * @package WordPress
 999  * @subpackage Upgrader
1000  * @since 2.8.0
1001  */
1002 class WP_Upgrader_Skin {
1003
1004         var $upgrader;
1005         var $done_header = false;
1006         var $result = false;
1007
1008         function __construct($args = array()) {
1009                 $defaults = array( 'url' => '', 'nonce' => '', 'title' => '', 'context' => false );
1010                 $this->options = wp_parse_args($args, $defaults);
1011         }
1012
1013         function set_upgrader(&$upgrader) {
1014                 if ( is_object($upgrader) )
1015                         $this->upgrader =& $upgrader;
1016                 $this->add_strings();
1017         }
1018
1019         function add_strings() {
1020         }
1021
1022         function set_result($result) {
1023                 $this->result = $result;
1024         }
1025
1026         function request_filesystem_credentials($error = false) {
1027                 $url = $this->options['url'];
1028                 $context = $this->options['context'];
1029                 if ( !empty($this->options['nonce']) )
1030                         $url = wp_nonce_url($url, $this->options['nonce']);
1031                 return request_filesystem_credentials($url, '', $error, $context); //Possible to bring inline, Leaving as is for now.
1032         }
1033
1034         function header() {
1035                 if ( $this->done_header )
1036                         return;
1037                 $this->done_header = true;
1038                 echo '<div class="wrap">';
1039                 echo screen_icon();
1040                 echo '<h2>' . $this->options['title'] . '</h2>';
1041         }
1042         function footer() {
1043                 echo '</div>';
1044         }
1045
1046         function error($errors) {
1047                 if ( ! $this->done_header )
1048                         $this->header();
1049                 if ( is_string($errors) ) {
1050                         $this->feedback($errors);
1051                 } elseif ( is_wp_error($errors) && $errors->get_error_code() ) {
1052                         foreach ( $errors->get_error_messages() as $message ) {
1053                                 if ( $errors->get_error_data() )
1054                                         $this->feedback($message . ' ' . $errors->get_error_data() );
1055                                 else
1056                                         $this->feedback($message);
1057                         }
1058                 }
1059         }
1060
1061         function feedback($string) {
1062                 if ( isset( $this->upgrader->strings[$string] ) )
1063                         $string = $this->upgrader->strings[$string];
1064
1065                 if ( strpos($string, '%') !== false ) {
1066                         $args = func_get_args();
1067                         $args = array_splice($args, 1);
1068                         if ( !empty($args) )
1069                                 $string = vsprintf($string, $args);
1070                 }
1071                 if ( empty($string) )
1072                         return;
1073                 show_message($string);
1074         }
1075         function before() {}
1076         function after() {}
1077
1078 }
1079
1080 /**
1081  * Plugin Upgrader Skin for WordPress Plugin Upgrades.
1082  *
1083  * @TODO More Detailed docs, for methods as well.
1084  *
1085  * @package WordPress
1086  * @subpackage Upgrader
1087  * @since 2.8.0
1088  */
1089 class Plugin_Upgrader_Skin extends WP_Upgrader_Skin {
1090         var $plugin = '';
1091         var $plugin_active = false;
1092         var $plugin_network_active = false;
1093
1094         function __construct($args = array()) {
1095                 $defaults = array( 'url' => '', 'plugin' => '', 'nonce' => '', 'title' => __('Update Plugin') );
1096                 $args = wp_parse_args($args, $defaults);
1097
1098                 $this->plugin = $args['plugin'];
1099
1100                 $this->plugin_active = is_plugin_active( $this->plugin );
1101                 $this->plugin_network_active = is_plugin_active_for_network( $this->plugin );
1102
1103                 parent::__construct($args);
1104         }
1105
1106         function after() {
1107                 $this->plugin = $this->upgrader->plugin_info();
1108                 if ( !empty($this->plugin) && !is_wp_error($this->result) && $this->plugin_active ){
1109                         show_message(__('Reactivating the plugin&#8230;'));
1110                         echo '<iframe style="border:0;overflow:hidden" width="100%" height="170px" src="' . wp_nonce_url('update.php?action=activate-plugin&networkwide=' . $this->plugin_network_active . '&plugin=' . $this->plugin, 'activate-plugin_' . $this->plugin) .'"></iframe>';
1111                 }
1112
1113                 $update_actions =  array(
1114                         'activate_plugin' => '<a href="' . wp_nonce_url('plugins.php?action=activate&amp;plugin=' . $this->plugin, 'activate-plugin_' . $this->plugin) . '" title="' . esc_attr__('Activate this plugin') . '" target="_parent">' . __('Activate Plugin') . '</a>',
1115                         'plugins_page' => '<a href="' . self_admin_url('plugins.php') . '" title="' . esc_attr__('Go to plugins page') . '" target="_parent">' . __('Return to Plugins page') . '</a>'
1116                 );
1117                 if ( $this->plugin_active )
1118                         unset( $update_actions['activate_plugin'] );
1119                 if ( ! $this->result || is_wp_error($this->result) )
1120                         unset( $update_actions['activate_plugin'] );
1121
1122                 $update_actions = apply_filters('update_plugin_complete_actions', $update_actions, $this->plugin);
1123                 if ( ! empty($update_actions) )
1124                         $this->feedback(implode(' | ', (array)$update_actions));
1125         }
1126
1127         function before() {
1128                 if ( $this->upgrader->show_before ) {
1129                         echo $this->upgrader->show_before;
1130                         $this->upgrader->show_before = '';
1131                 }
1132         }
1133 }
1134
1135 /**
1136  * Plugin Upgrader Skin for WordPress Plugin Upgrades.
1137  *
1138  * @package WordPress
1139  * @subpackage Upgrader
1140  * @since 3.0.0
1141  */
1142 class Bulk_Upgrader_Skin extends WP_Upgrader_Skin {
1143         var $in_loop = false;
1144         var $error = false;
1145
1146         function __construct($args = array()) {
1147                 $defaults = array( 'url' => '', 'nonce' => '' );
1148                 $args = wp_parse_args($args, $defaults);
1149
1150                 parent::__construct($args);
1151         }
1152
1153         function add_strings() {
1154                 $this->upgrader->strings['skin_upgrade_start'] = __('The update process is starting. This process may take a while on some hosts, so please be patient.');
1155                 $this->upgrader->strings['skin_update_failed_error'] = __('An error occurred while updating %1$s: <strong>%2$s</strong>.');
1156                 $this->upgrader->strings['skin_update_failed'] = __('The update of %1$s failed.');
1157                 $this->upgrader->strings['skin_update_successful'] = __('%1$s updated successfully.').' <a onclick="%2$s" href="#" class="hide-if-no-js"><span>'.__('Show Details').'</span><span class="hidden">'.__('Hide Details').'</span>.</a>';
1158                 $this->upgrader->strings['skin_upgrade_end'] = __('All updates have been completed.');
1159         }
1160
1161         function feedback($string) {
1162                 if ( isset( $this->upgrader->strings[$string] ) )
1163                         $string = $this->upgrader->strings[$string];
1164
1165                 if ( strpos($string, '%') !== false ) {
1166                         $args = func_get_args();
1167                         $args = array_splice($args, 1);
1168                         if ( !empty($args) )
1169                                 $string = vsprintf($string, $args);
1170                 }
1171                 if ( empty($string) )
1172                         return;
1173                 if ( $this->in_loop )
1174                         echo "$string<br />\n";
1175                 else
1176                         echo "<p>$string</p>\n";
1177         }
1178
1179         function header() {
1180                 // Nothing, This will be displayed within a iframe.
1181         }
1182
1183         function footer() {
1184                 // Nothing, This will be displayed within a iframe.
1185         }
1186         function error($error) {
1187                 if ( is_string($error) && isset( $this->upgrader->strings[$error] ) )
1188                         $this->error = $this->upgrader->strings[$error];
1189
1190                 if ( is_wp_error($error) ) {
1191                         foreach ( $error->get_error_messages() as $emessage ) {
1192                                 if ( $error->get_error_data() )
1193                                         $messages[] = $emessage . ' ' . $error->get_error_data();
1194                                 else
1195                                         $messages[] = $emessage;
1196                         }
1197                         $this->error = implode(', ', $messages);
1198                 }
1199                 echo '<script type="text/javascript">jQuery(\'.waiting-' . esc_js($this->upgrader->update_current) . '\').hide();</script>';
1200         }
1201
1202         function bulk_header() {
1203                 $this->feedback('skin_upgrade_start');
1204         }
1205
1206         function bulk_footer() {
1207                 $this->feedback('skin_upgrade_end');
1208         }
1209
1210         function before($title = '') {
1211                 $this->in_loop = true;
1212                 printf( '<h4>' . $this->upgrader->strings['skin_before_update_header'] . ' <img alt="" src="' . admin_url( 'images/wpspin_light.gif' ) . '" class="hidden waiting-' . $this->upgrader->update_current . '" style="vertical-align:middle;" /></h4>',  $title, $this->upgrader->update_current, $this->upgrader->update_count);
1213                 echo '<script type="text/javascript">jQuery(\'.waiting-' . esc_js($this->upgrader->update_current) . '\').show();</script>';
1214                 echo '<div class="update-messages hide-if-js" id="progress-' . esc_attr($this->upgrader->update_current) . '"><p>';
1215                 $this->flush_output();
1216         }
1217
1218         function after($title = '') {
1219                 echo '</p></div>';
1220                 if ( $this->error || ! $this->result ) {
1221                         if ( $this->error )
1222                                 echo '<div class="error"><p>' . sprintf($this->upgrader->strings['skin_update_failed_error'], $title, $this->error) . '</p></div>';
1223                         else
1224                                 echo '<div class="error"><p>' . sprintf($this->upgrader->strings['skin_update_failed'], $title) . '</p></div>';
1225
1226                         echo '<script type="text/javascript">jQuery(\'#progress-' . esc_js($this->upgrader->update_current) . '\').show();</script>';
1227                 }
1228                 if ( !empty($this->result) && !is_wp_error($this->result) ) {
1229                         echo '<div class="updated"><p>' . sprintf($this->upgrader->strings['skin_update_successful'], $title, 'jQuery(\'#progress-' . esc_js($this->upgrader->update_current) . '\').toggle();jQuery(\'span\', this).toggle(); return false;') . '</p></div>';
1230                         echo '<script type="text/javascript">jQuery(\'.waiting-' . esc_js($this->upgrader->update_current) . '\').hide();</script>';
1231                 }
1232
1233                 $this->reset();
1234                 $this->flush_output();
1235         }
1236
1237         function reset() {
1238                 $this->in_loop = false;
1239                 $this->error = false;
1240         }
1241
1242         function flush_output() {
1243                 wp_ob_end_flush_all();
1244                 flush();
1245         }
1246 }
1247
1248 class Bulk_Plugin_Upgrader_Skin extends Bulk_Upgrader_Skin {
1249         var $plugin_info = array(); // Plugin_Upgrader::bulk() will fill this in.
1250
1251         function __construct($args = array()) {
1252                 parent::__construct($args);
1253         }
1254
1255         function add_strings() {
1256                 parent::add_strings();
1257                 $this->upgrader->strings['skin_before_update_header'] = __('Updating Plugin %1$s (%2$d/%3$d)');
1258         }
1259
1260         function before() {
1261                 parent::before($this->plugin_info['Title']);
1262         }
1263
1264         function after() {
1265                 parent::after($this->plugin_info['Title']);
1266         }
1267         function bulk_footer() {
1268                 parent::bulk_footer();
1269                 $update_actions =  array(
1270                         'plugins_page' => '<a href="' . self_admin_url('plugins.php') . '" title="' . esc_attr__('Go to plugins page') . '" target="_parent">' . __('Return to Plugins page') . '</a>',
1271                         'updates_page' => '<a href="' . self_admin_url('update-core.php') . '" title="' . esc_attr__('Go to WordPress Updates page') . '" target="_parent">' . __('Return to WordPress Updates') . '</a>'
1272                 );
1273
1274                 $update_actions = apply_filters('update_bulk_plugins_complete_actions', $update_actions, $this->plugin_info);
1275                 if ( ! empty($update_actions) )
1276                         $this->feedback(implode(' | ', (array)$update_actions));
1277         }
1278 }
1279
1280 class Bulk_Theme_Upgrader_Skin extends Bulk_Upgrader_Skin {
1281         var $theme_info = array(); // Theme_Upgrader::bulk() will fill this in.
1282
1283         function __construct($args = array()) {
1284                 parent::__construct($args);
1285         }
1286
1287         function add_strings() {
1288                 parent::add_strings();
1289                 $this->upgrader->strings['skin_before_update_header'] = __('Updating Theme %1$s (%2$d/%3$d)');
1290         }
1291
1292         function before() {
1293                 parent::before($this->theme_info['Name']);
1294         }
1295
1296         function after() {
1297                 parent::after($this->theme_info['Name']);
1298         }
1299         function bulk_footer() {
1300                 parent::bulk_footer();
1301                 $update_actions =  array(
1302                         'themes_page' => '<a href="' . self_admin_url('themes.php') . '" title="' . esc_attr__('Go to themes page') . '" target="_parent">' . __('Return to Themes page') . '</a>',
1303                         'updates_page' => '<a href="' . self_admin_url('update-core.php') . '" title="' . esc_attr__('Go to WordPress Updates page') . '" target="_parent">' . __('Return to WordPress Updates') . '</a>'
1304                 );
1305
1306                 $update_actions = apply_filters('update_bulk_theme_complete_actions', $update_actions, $this->theme_info);
1307                 if ( ! empty($update_actions) )
1308                         $this->feedback(implode(' | ', (array)$update_actions));
1309         }
1310 }
1311
1312 /**
1313  * Plugin Installer Skin for WordPress Plugin Installer.
1314  *
1315  * @TODO More Detailed docs, for methods as well.
1316  *
1317  * @package WordPress
1318  * @subpackage Upgrader
1319  * @since 2.8.0
1320  */
1321 class Plugin_Installer_Skin extends WP_Upgrader_Skin {
1322         var $api;
1323         var $type;
1324
1325         function __construct($args = array()) {
1326                 $defaults = array( 'type' => 'web', 'url' => '', 'plugin' => '', 'nonce' => '', 'title' => '' );
1327                 $args = wp_parse_args($args, $defaults);
1328
1329                 $this->type = $args['type'];
1330                 $this->api = isset($args['api']) ? $args['api'] : array();
1331
1332                 parent::__construct($args);
1333         }
1334
1335         function before() {
1336                 if ( !empty($this->api) )
1337                         $this->upgrader->strings['process_success'] = sprintf( __('Successfully installed the plugin <strong>%s %s</strong>.'), $this->api->name, $this->api->version);
1338         }
1339
1340         function after() {
1341
1342                 $plugin_file = $this->upgrader->plugin_info();
1343
1344                 $install_actions = array();
1345
1346                 $from = isset($_GET['from']) ? stripslashes($_GET['from']) : 'plugins';
1347
1348                 if ( 'import' == $from )
1349                         $install_actions['activate_plugin'] = '<a href="' . wp_nonce_url('plugins.php?action=activate&amp;from=import&amp;plugin=' . $plugin_file, 'activate-plugin_' . $plugin_file) . '" title="' . esc_attr__('Activate this plugin') . '" target="_parent">' . __('Activate Plugin &amp; Run Importer') . '</a>';
1350                 else
1351                         $install_actions['activate_plugin'] = '<a href="' . wp_nonce_url('plugins.php?action=activate&amp;plugin=' . $plugin_file, 'activate-plugin_' . $plugin_file) . '" title="' . esc_attr__('Activate this plugin') . '" target="_parent">' . __('Activate Plugin') . '</a>';
1352
1353                 if ( is_multisite() && current_user_can( 'manage_network_plugins' ) ) {
1354                         $install_actions['network_activate'] = '<a href="' . wp_nonce_url('plugins.php?action=activate&amp;networkwide=1&amp;plugin=' . $plugin_file, 'activate-plugin_' . $plugin_file) . '" title="' . esc_attr__('Activate this plugin for all sites in this network') . '" target="_parent">' . __('Network Activate') . '</a>';
1355                         unset( $install_actions['activate_plugin'] );
1356                 }
1357
1358                 if ( 'import' == $from )
1359                         $install_actions['importers_page'] = '<a href="' . admin_url('import.php') . '" title="' . esc_attr__('Return to Importers') . '" target="_parent">' . __('Return to Importers') . '</a>';
1360                 else if ( $this->type == 'web' )
1361                         $install_actions['plugins_page'] = '<a href="' . self_admin_url('plugin-install.php') . '" title="' . esc_attr__('Return to Plugin Installer') . '" target="_parent">' . __('Return to Plugin Installer') . '</a>';
1362                 else
1363                         $install_actions['plugins_page'] = '<a href="' . self_admin_url('plugins.php') . '" title="' . esc_attr__('Return to Plugins page') . '" target="_parent">' . __('Return to Plugins page') . '</a>';
1364
1365
1366                 if ( ! $this->result || is_wp_error($this->result) ) {
1367                         unset( $install_actions['activate_plugin'] );
1368                         unset( $install_actions['network_activate'] );
1369                 }
1370                 $install_actions = apply_filters('install_plugin_complete_actions', $install_actions, $this->api, $plugin_file);
1371                 if ( ! empty($install_actions) )
1372                         $this->feedback(implode(' | ', (array)$install_actions));
1373         }
1374 }
1375
1376 /**
1377  * Theme Installer Skin for the WordPress Theme Installer.
1378  *
1379  * @TODO More Detailed docs, for methods as well.
1380  *
1381  * @package WordPress
1382  * @subpackage Upgrader
1383  * @since 2.8.0
1384  */
1385 class Theme_Installer_Skin extends WP_Upgrader_Skin {
1386         var $api;
1387         var $type;
1388
1389         function __construct($args = array()) {
1390                 $defaults = array( 'type' => 'web', 'url' => '', 'theme' => '', 'nonce' => '', 'title' => '' );
1391                 $args = wp_parse_args($args, $defaults);
1392
1393                 $this->type = $args['type'];
1394                 $this->api = isset($args['api']) ? $args['api'] : array();
1395
1396                 parent::__construct($args);
1397         }
1398
1399         function before() {
1400                 if ( !empty($this->api) ) {
1401                         /* translators: 1: theme name, 2: version */
1402                         $this->upgrader->strings['process_success'] = sprintf( __('Successfully installed the theme <strong>%1$s %2$s</strong>.'), $this->api->name, $this->api->version);
1403                 }
1404         }
1405
1406         function after() {
1407                 if ( empty($this->upgrader->result['destination_name']) )
1408                         return;
1409
1410                 $theme_info = $this->upgrader->theme_info();
1411                 if ( empty($theme_info) )
1412                         return;
1413                 $name = $theme_info['Name'];
1414                 $stylesheet = $this->upgrader->result['destination_name'];
1415                 $template = !empty($theme_info['Template']) ? $theme_info['Template'] : $stylesheet;
1416
1417                 $preview_link = htmlspecialchars( add_query_arg( array('preview' => 1, 'template' => $template, 'stylesheet' => $stylesheet, 'preview_iframe' => 1, 'TB_iframe' => 'true' ), trailingslashit(esc_url(get_option('home'))) ) );
1418                 $activate_link = wp_nonce_url("themes.php?action=activate&amp;template=" . urlencode($template) . "&amp;stylesheet=" . urlencode($stylesheet), 'switch-theme_' . $template);
1419
1420                 $install_actions = array(
1421                         'preview' => '<a href="' . $preview_link . '" class="thickbox thickbox-preview" title="' . esc_attr(sprintf(__('Preview &#8220;%s&#8221;'), $name)) . '">' . __('Preview') . '</a>',
1422                         'activate' => '<a href="' . $activate_link .  '" class="activatelink" title="' . esc_attr( sprintf( __('Activate &#8220;%s&#8221;'), $name ) ) . '">' . __('Activate') . '</a>'
1423                                                         );
1424
1425                 if ( is_network_admin() && current_user_can( 'manage_network_themes' ) )
1426                         $install_actions['network_enable'] = '<a href="' . esc_url( wp_nonce_url( 'themes.php?action=enable&amp;theme=' . $template, 'enable-theme_' . $template ) ) . '" title="' . esc_attr__( 'Enable this theme for all sites in this network' ) . '" target="_parent">' . __( 'Network Enable' ) . '</a>';
1427
1428                 if ( $this->type == 'web' )
1429                         $install_actions['themes_page'] = '<a href="' . self_admin_url('theme-install.php') . '" title="' . esc_attr__('Return to Theme Installer') . '" target="_parent">' . __('Return to Theme Installer') . '</a>';
1430                 else
1431                         $install_actions['themes_page'] = '<a href="' . self_admin_url('themes.php') . '" title="' . esc_attr__('Themes page') . '" target="_parent">' . __('Return to Themes page') . '</a>';
1432
1433                 if ( ! $this->result || is_wp_error($this->result) || is_network_admin() )
1434                         unset( $install_actions['activate'], $install_actions['preview'] );
1435
1436                 $install_actions = apply_filters('install_theme_complete_actions', $install_actions, $this->api, $stylesheet, $theme_info);
1437                 if ( ! empty($install_actions) )
1438                         $this->feedback(implode(' | ', (array)$install_actions));
1439         }
1440 }
1441
1442 /**
1443  * Theme Upgrader Skin for WordPress Theme Upgrades.
1444  *
1445  * @TODO More Detailed docs, for methods as well.
1446  *
1447  * @package WordPress
1448  * @subpackage Upgrader
1449  * @since 2.8.0
1450  */
1451 class Theme_Upgrader_Skin extends WP_Upgrader_Skin {
1452         var $theme = '';
1453
1454         function __construct($args = array()) {
1455                 $defaults = array( 'url' => '', 'theme' => '', 'nonce' => '', 'title' => __('Update Theme') );
1456                 $args = wp_parse_args($args, $defaults);
1457
1458                 $this->theme = $args['theme'];
1459
1460                 parent::__construct($args);
1461         }
1462
1463         function after() {
1464
1465                 $update_actions = array();
1466                 if ( !empty($this->upgrader->result['destination_name']) &&
1467                         ($theme_info = $this->upgrader->theme_info()) &&
1468                         !empty($theme_info) ) {
1469
1470                         $name = $theme_info['Name'];
1471                         $stylesheet = $this->upgrader->result['destination_name'];
1472                         $template = !empty($theme_info['Template']) ? $theme_info['Template'] : $stylesheet;
1473
1474                         $preview_link = htmlspecialchars( add_query_arg( array('preview' => 1, 'template' => $template, 'stylesheet' => $stylesheet, 'TB_iframe' => 'true' ), trailingslashit(esc_url(get_option('home'))) ) );
1475                         $activate_link = wp_nonce_url("themes.php?action=activate&amp;template=" . urlencode($template) . "&amp;stylesheet=" . urlencode($stylesheet), 'switch-theme_' . $template);
1476
1477                         $update_actions['preview'] = '<a href="' . $preview_link . '" class="thickbox thickbox-preview" title="' . esc_attr(sprintf(__('Preview &#8220;%s&#8221;'), $name)) . '">' . __('Preview') . '</a>';
1478                         $update_actions['activate'] = '<a href="' . $activate_link .  '" class="activatelink" title="' . esc_attr( sprintf( __('Activate &#8220;%s&#8221;'), $name ) ) . '">' . __('Activate') . '</a>';
1479
1480                         if ( ( ! $this->result || is_wp_error($this->result) ) || $stylesheet == get_stylesheet() )
1481                                 unset($update_actions['preview'], $update_actions['activate']);
1482                 }
1483
1484                 $update_actions['themes_page'] = '<a href="' . self_admin_url('themes.php') . '" title="' . esc_attr__('Return to Themes page') . '" target="_parent">' . __('Return to Themes page') . '</a>';
1485
1486                 $update_actions = apply_filters('update_theme_complete_actions', $update_actions, $this->theme);
1487                 if ( ! empty($update_actions) )
1488                         $this->feedback(implode(' | ', (array)$update_actions));
1489         }
1490 }
1491
1492 /**
1493  * Upgrade Skin helper for File uploads. This class handles the upload process and passes it as if its a local file to the Upgrade/Installer functions.
1494  *
1495  * @TODO More Detailed docs, for methods as well.
1496  *
1497  * @package WordPress
1498  * @subpackage Upgrader
1499  * @since 2.8.0
1500  */
1501 class File_Upload_Upgrader {
1502         var $package;
1503         var $filename;
1504         var $id = 0;
1505
1506         function __construct($form, $urlholder) {
1507
1508                 if ( empty($_FILES[$form]['name']) && empty($_GET[$urlholder]) )
1509                         wp_die(__('Please select a file'));
1510
1511                 //Handle a newly uploaded file, Else assume its already been uploaded
1512                 if ( ! empty($_FILES) ) {
1513                         $overrides = array( 'test_form' => false, 'test_type' => false );
1514                         $file = wp_handle_upload( $_FILES[$form], $overrides );
1515
1516                         if ( isset( $file['error'] ) )
1517                                 wp_die( $file['error'] );
1518
1519                         $this->filename = $_FILES[$form]['name'];
1520                         $this->package = $file['file'];
1521
1522                         // Construct the object array
1523                         $object = array(
1524                                 'post_title' => $this->filename,
1525                                 'post_content' => $file['url'],
1526                                 'post_mime_type' => $file['type'],
1527                                 'guid' => $file['url'],
1528                                 'context' => 'upgrader',
1529                                 'post_status' => 'private'
1530                         );
1531
1532                         // Save the data
1533                         $this->id = wp_insert_attachment( $object, $file['file'] );
1534
1535                         // schedule a cleanup for 2 hours from now in case of failed install
1536                         wp_schedule_single_event( time() + 7200, 'upgrader_scheduled_cleanup', array( $this->id ) );
1537
1538                 } elseif ( is_numeric( $_GET[$urlholder] ) ) {
1539                         // Numeric Package = previously uploaded file, see above.
1540                         $this->id = (int) $_GET[$urlholder];
1541                         $attachment = get_post( $this->id );
1542                         if ( empty($attachment) )
1543                                 wp_die(__('Please select a file'));
1544
1545                         $this->filename = $attachment->post_title;
1546                         $this->package = get_attached_file( $attachment->ID );
1547                 } else {
1548                         // Else, It's set to something, Back compat for plugins using the old (pre-3.3) File_Uploader handler.
1549                         if ( ! ( ( $uploads = wp_upload_dir() ) && false === $uploads['error'] ) )
1550                                 wp_die( $uploads['error'] );
1551
1552                         $this->filename = $_GET[$urlholder];
1553                         $this->package = $uploads['basedir'] . '/' . $this->filename;
1554                 }
1555         }
1556
1557         function cleanup() {
1558                 if ( $this->id )
1559                         wp_delete_attachment( $this->id );
1560
1561                 elseif ( file_exists( $this->package ) )
1562                         return @unlink( $this->package );
1563
1564                 return true;
1565         }
1566 }