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/wp-admin/includes/file.php

https://bitbucket.org/Wallynm/iptb
PHP | 1079 lines | 638 code | 163 blank | 278 comment | 226 complexity | b30491098577a7366656b754088e85c5 MD5 | raw file
   1<?php
   2/**
   3 * File contains all the administration image manipulation functions.
   4 *
   5 * @package WordPress
   6 * @subpackage Administration
   7 */
   8
   9/** The descriptions for theme files. */
  10$wp_file_descriptions = array(
  11	'index.php' => __( 'Main Index Template' ),
  12	'style.css' => __( 'Stylesheet' ),
  13	'editor-style.css' => __( 'Visual Editor Stylesheet' ),
  14	'editor-style-rtl.css' => __( 'Visual Editor RTL Stylesheet' ),
  15	'rtl.css' => __( 'RTL Stylesheet' ),
  16	'comments.php' => __( 'Comments' ),
  17	'comments-popup.php' => __( 'Popup Comments' ),
  18	'footer.php' => __( 'Footer' ),
  19	'header.php' => __( 'Header' ),
  20	'sidebar.php' => __( 'Sidebar' ),
  21	'archive.php' => __( 'Archives' ),
  22	'author.php' => __( 'Author Template' ),
  23	'tag.php' => __( 'Tag Template' ),
  24	'category.php' => __( 'Category Template' ),
  25	'page.php' => __( 'Page Template' ),
  26	'search.php' => __( 'Search Results' ),
  27	'searchform.php' => __( 'Search Form' ),
  28	'single.php' => __( 'Single Post' ),
  29	'404.php' => __( '404 Template' ),
  30	'link.php' => __( 'Links Template' ),
  31	'functions.php' => __( 'Theme Functions' ),
  32	'attachment.php' => __( 'Attachment Template' ),
  33	'image.php' => __('Image Attachment Template'),
  34	'video.php' => __('Video Attachment Template'),
  35	'audio.php' => __('Audio Attachment Template'),
  36	'application.php' => __('Application Attachment Template'),
  37	'my-hacks.php' => __( 'my-hacks.php (legacy hacks support)' ),
  38	'.htaccess' => __( '.htaccess (for rewrite rules )' ),
  39	// Deprecated files
  40	'wp-layout.css' => __( 'Stylesheet' ),
  41	'wp-comments.php' => __( 'Comments Template' ),
  42	'wp-comments-popup.php' => __( 'Popup Comments Template' ),
  43);
  44
  45/**
  46 * Get the description for standard WordPress theme files and other various standard
  47 * WordPress files
  48 *
  49 * @since 1.5.0
  50 *
  51 * @uses _cleanup_header_comment
  52 * @uses $wp_file_descriptions
  53 * @param string $file Filesystem path or filename
  54 * @return string Description of file from $wp_file_descriptions or basename of $file if description doesn't exist
  55 */
  56function get_file_description( $file ) {
  57	global $wp_file_descriptions;
  58
  59	if ( isset( $wp_file_descriptions[basename( $file )] ) ) {
  60		return $wp_file_descriptions[basename( $file )];
  61	}
  62	elseif ( file_exists( $file ) && is_file( $file ) ) {
  63		$template_data = implode( '', file( $file ) );
  64		if ( preg_match( '|Template Name:(.*)$|mi', $template_data, $name ))
  65			return sprintf( __( '%s Page Template' ), _cleanup_header_comment($name[1]) );
  66	}
  67
  68	return basename( $file );
  69}
  70
  71/**
  72 * Get the absolute filesystem path to the root of the WordPress installation
  73 *
  74 * @since 1.5.0
  75 *
  76 * @uses get_option
  77 * @return string Full filesystem path to the root of the WordPress installation
  78 */
  79function get_home_path() {
  80	$home = get_option( 'home' );
  81	$siteurl = get_option( 'siteurl' );
  82	if ( $home != '' && $home != $siteurl ) {
  83		$wp_path_rel_to_home = str_replace($home, '', $siteurl); /* $siteurl - $home */
  84		$pos = strpos($_SERVER["SCRIPT_FILENAME"], $wp_path_rel_to_home);
  85		$home_path = substr($_SERVER["SCRIPT_FILENAME"], 0, $pos);
  86		$home_path = trailingslashit( $home_path );
  87	} else {
  88		$home_path = ABSPATH;
  89	}
  90
  91	return $home_path;
  92}
  93
  94/**
  95 * Get the real file system path to a file to edit within the admin
  96 *
  97 * If the $file is index.php or .htaccess this function will assume it is relative
  98 * to the install root, otherwise it is assumed the file is relative to the wp-content
  99 * directory
 100 *
 101 * @since 1.5.0
 102 *
 103 * @uses get_home_path
 104 * @uses WP_CONTENT_DIR full filesystem path to the wp-content directory
 105 * @param string $file filesystem path relative to the WordPress install directory or to the wp-content directory
 106 * @return string full file system path to edit
 107 */
 108function get_real_file_to_edit( $file ) {
 109	if ('index.php' == $file || '.htaccess' == $file ) {
 110		$real_file = get_home_path() . $file;
 111	} else {
 112		$real_file = WP_CONTENT_DIR . $file;
 113	}
 114
 115	return $real_file;
 116}
 117
 118/**
 119 * Returns a listing of all files in the specified folder and all subdirectories up to 100 levels deep.
 120 * The depth of the recursiveness can be controlled by the $levels param.
 121 *
 122 * @since 2.6.0
 123 *
 124 * @param string $folder Full path to folder
 125 * @param int $levels (optional) Levels of folders to follow, Default: 100 (PHP Loop limit).
 126 * @return bool|array False on failure, Else array of files
 127 */
 128function list_files( $folder = '', $levels = 100 ) {
 129	if ( empty($folder) )
 130		return false;
 131
 132	if ( ! $levels )
 133		return false;
 134
 135	$files = array();
 136	if ( $dir = @opendir( $folder ) ) {
 137		while (($file = readdir( $dir ) ) !== false ) {
 138			if ( in_array($file, array('.', '..') ) )
 139				continue;
 140			if ( is_dir( $folder . '/' . $file ) ) {
 141				$files2 = list_files( $folder . '/' . $file, $levels - 1);
 142				if ( $files2 )
 143					$files = array_merge($files, $files2 );
 144				else
 145					$files[] = $folder . '/' . $file . '/';
 146			} else {
 147				$files[] = $folder . '/' . $file;
 148			}
 149		}
 150	}
 151	@closedir( $dir );
 152	return $files;
 153}
 154
 155/**
 156 * Returns a filename of a Temporary unique file.
 157 * Please note that the calling function must unlink() this itself.
 158 *
 159 * The filename is based off the passed parameter or defaults to the current unix timestamp,
 160 * while the directory can either be passed as well, or by leaving  it blank, default to a writable temporary directory.
 161 *
 162 * @since 2.6.0
 163 *
 164 * @param string $filename (optional) Filename to base the Unique file off
 165 * @param string $dir (optional) Directory to store the file in
 166 * @return string a writable filename
 167 */
 168function wp_tempnam($filename = '', $dir = '') {
 169	if ( empty($dir) )
 170		$dir = get_temp_dir();
 171	$filename = basename($filename);
 172	if ( empty($filename) )
 173		$filename = time();
 174
 175	$filename = preg_replace('|\..*$|', '.tmp', $filename);
 176	$filename = $dir . wp_unique_filename($dir, $filename);
 177	touch($filename);
 178	return $filename;
 179}
 180
 181/**
 182 * Make sure that the file that was requested to edit, is allowed to be edited
 183 *
 184 * Function will die if if you are not allowed to edit the file
 185 *
 186 * @since 1.5.0
 187 *
 188 * @uses wp_die
 189 * @uses validate_file
 190 * @param string $file file the users is attempting to edit
 191 * @param array $allowed_files Array of allowed files to edit, $file must match an entry exactly
 192 * @return null
 193 */
 194function validate_file_to_edit( $file, $allowed_files = '' ) {
 195	$code = validate_file( $file, $allowed_files );
 196
 197	if (!$code )
 198		return $file;
 199
 200	switch ( $code ) {
 201		case 1 :
 202			wp_die( __('Sorry, can&#8217;t edit files with &#8220;..&#8221; in the name. If you are trying to edit a file in your WordPress home directory, you can just type the name of the file in.' ));
 203
 204		//case 2 :
 205		//	wp_die( __('Sorry, can&#8217;t call files with their real path.' ));
 206
 207		case 3 :
 208			wp_die( __('Sorry, that file cannot be edited.' ));
 209	}
 210}
 211
 212/**
 213 * Handle PHP uploads in WordPress, sanitizing file names, checking extensions for mime type,
 214 * and moving the file to the appropriate directory within the uploads directory.
 215 *
 216 * @since 2.0
 217 *
 218 * @uses wp_handle_upload_error
 219 * @uses apply_filters
 220 * @uses is_multisite
 221 * @uses wp_check_filetype_and_ext
 222 * @uses current_user_can
 223 * @uses wp_upload_dir
 224 * @uses wp_unique_filename
 225 * @uses delete_transient
 226 * @param array $file Reference to a single element of $_FILES. Call the function once for each uploaded file.
 227 * @param array $overrides Optional. An associative array of names=>values to override default variables with extract( $overrides, EXTR_OVERWRITE ).
 228 * @return array On success, returns an associative array of file attributes. On failure, returns $overrides['upload_error_handler'](&$file, $message ) or array( 'error'=>$message ).
 229 */
 230function wp_handle_upload( &$file, $overrides = false, $time = null ) {
 231	// The default error handler.
 232	if ( ! function_exists( 'wp_handle_upload_error' ) ) {
 233		function wp_handle_upload_error( &$file, $message ) {
 234			return array( 'error'=>$message );
 235		}
 236	}
 237
 238	$file = apply_filters( 'wp_handle_upload_prefilter', $file );
 239
 240	// You may define your own function and pass the name in $overrides['upload_error_handler']
 241	$upload_error_handler = 'wp_handle_upload_error';
 242
 243	// You may have had one or more 'wp_handle_upload_prefilter' functions error out the file.  Handle that gracefully.
 244	if ( isset( $file['error'] ) && !is_numeric( $file['error'] ) && $file['error'] )
 245		return $upload_error_handler( $file, $file['error'] );
 246
 247	// You may define your own function and pass the name in $overrides['unique_filename_callback']
 248	$unique_filename_callback = null;
 249
 250	// $_POST['action'] must be set and its value must equal $overrides['action'] or this:
 251	$action = 'wp_handle_upload';
 252
 253	// Courtesy of php.net, the strings that describe the error indicated in $_FILES[{form field}]['error'].
 254	$upload_error_strings = array( false,
 255		__( "The uploaded file exceeds the upload_max_filesize directive in php.ini." ),
 256		__( "The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form." ),
 257		__( "The uploaded file was only partially uploaded." ),
 258		__( "No file was uploaded." ),
 259		'',
 260		__( "Missing a temporary folder." ),
 261		__( "Failed to write file to disk." ),
 262		__( "File upload stopped by extension." ));
 263
 264	// All tests are on by default. Most can be turned off by $overrides[{test_name}] = false;
 265	$test_form = true;
 266	$test_size = true;
 267	$test_upload = true;
 268
 269	// If you override this, you must provide $ext and $type!!!!
 270	$test_type = true;
 271	$mimes = false;
 272
 273	// Install user overrides. Did we mention that this voids your warranty?
 274	if ( is_array( $overrides ) )
 275		extract( $overrides, EXTR_OVERWRITE );
 276
 277	// A correct form post will pass this test.
 278	if ( $test_form && (!isset( $_POST['action'] ) || ($_POST['action'] != $action ) ) )
 279		return call_user_func($upload_error_handler, $file, __( 'Invalid form submission.' ));
 280
 281	// A successful upload will pass this test. It makes no sense to override this one.
 282	if ( $file['error'] > 0 )
 283		return call_user_func($upload_error_handler, $file, $upload_error_strings[$file['error']] );
 284
 285	// A non-empty file will pass this test.
 286	if ( $test_size && !($file['size'] > 0 ) ) {
 287		if ( is_multisite() )
 288			$error_msg = __( 'File is empty. Please upload something more substantial.' );
 289		else
 290			$error_msg = __( 'File is empty. Please upload something more substantial. This error could also be caused by uploads being disabled in your php.ini or by post_max_size being defined as smaller than upload_max_filesize in php.ini.' );
 291		return call_user_func($upload_error_handler, $file, $error_msg);
 292	}
 293
 294	// A properly uploaded file will pass this test. There should be no reason to override this one.
 295	if ( $test_upload && ! @ is_uploaded_file( $file['tmp_name'] ) )
 296		return call_user_func($upload_error_handler, $file, __( 'Specified file failed upload test.' ));
 297
 298	// A correct MIME type will pass this test. Override $mimes or use the upload_mimes filter.
 299	if ( $test_type ) {
 300		$wp_filetype = wp_check_filetype_and_ext( $file['tmp_name'], $file['name'], $mimes );
 301
 302		extract( $wp_filetype );
 303
 304		// Check to see if wp_check_filetype_and_ext() determined the filename was incorrect
 305		if ( $proper_filename )
 306			$file['name'] = $proper_filename;
 307
 308		if ( ( !$type || !$ext ) && !current_user_can( 'unfiltered_upload' ) )
 309			return call_user_func($upload_error_handler, $file, __( 'Sorry, this file type is not permitted for security reasons.' ));
 310
 311		if ( !$ext )
 312			$ext = ltrim(strrchr($file['name'], '.'), '.');
 313
 314		if ( !$type )
 315			$type = $file['type'];
 316	} else {
 317		$type = '';
 318	}
 319
 320	// A writable uploads dir will pass this test. Again, there's no point overriding this one.
 321	if ( ! ( ( $uploads = wp_upload_dir($time) ) && false === $uploads['error'] ) )
 322		return call_user_func($upload_error_handler, $file, $uploads['error'] );
 323
 324	$filename = wp_unique_filename( $uploads['path'], $file['name'], $unique_filename_callback );
 325
 326	$tmp_file = wp_tempnam($filename);
 327
 328	// Move the file to the uploads dir
 329	if ( false === @ move_uploaded_file( $file['tmp_name'], $tmp_file ) )
 330		return $upload_error_handler( $file, sprintf( __('The uploaded file could not be moved to %s.' ), $uploads['path'] ) );
 331
 332	// If a resize was requested, perform the resize.
 333	$image_resize = isset( $_POST['image_resize'] ) && 'true' == $_POST['image_resize'];
 334	$do_resize = apply_filters( 'wp_upload_resize', $image_resize );
 335	$size = @getimagesize( $tmp_file );
 336	if ( $do_resize && $size ) {
 337		$old_temp = $tmp_file;
 338		$tmp_file = image_resize( $tmp_file, (int) get_option('large_size_w'), (int) get_option('large_size_h'), 0, 'resized');
 339		if ( ! is_wp_error($tmp_file) ) {
 340			unlink($old_temp);
 341		} else {
 342			$tmp_file = $old_temp;
 343		}
 344	}
 345
 346	// Copy the temporary file into its destination
 347	$new_file = $uploads['path'] . "/$filename";
 348	copy( $tmp_file, $new_file );
 349	unlink($tmp_file);
 350
 351	// Set correct file permissions
 352	$stat = stat( dirname( $new_file ));
 353	$perms = $stat['mode'] & 0000666;
 354	@ chmod( $new_file, $perms );
 355
 356	// Compute the URL
 357	$url = $uploads['url'] . "/$filename";
 358
 359	if ( is_multisite() )
 360		delete_transient( 'dirsize_cache' );
 361
 362	return apply_filters( 'wp_handle_upload', array( 'file' => $new_file, 'url' => $url, 'type' => $type ), 'upload' );
 363}
 364
 365/**
 366 * Handle sideloads, which is the process of retrieving a media item from another server instead of
 367 * a traditional media upload.  This process involves sanitizing the filename, checking extensions
 368 * for mime type, and moving the file to the appropriate directory within the uploads directory.
 369 *
 370 * @since 2.6.0
 371 *
 372 * @uses wp_handle_upload_error
 373 * @uses apply_filters
 374 * @uses wp_check_filetype_and_ext
 375 * @uses current_user_can
 376 * @uses wp_upload_dir
 377 * @uses wp_unique_filename
 378 * @param array $file an array similar to that of a PHP $_FILES POST array
 379 * @param array $overrides Optional. An associative array of names=>values to override default variables with extract( $overrides, EXTR_OVERWRITE ).
 380 * @return array On success, returns an associative array of file attributes. On failure, returns $overrides['upload_error_handler'](&$file, $message ) or array( 'error'=>$message ).
 381 */
 382function wp_handle_sideload( &$file, $overrides = false ) {
 383	// The default error handler.
 384	if (! function_exists( 'wp_handle_upload_error' ) ) {
 385		function wp_handle_upload_error( &$file, $message ) {
 386			return array( 'error'=>$message );
 387		}
 388	}
 389
 390	// You may define your own function and pass the name in $overrides['upload_error_handler']
 391	$upload_error_handler = 'wp_handle_upload_error';
 392
 393	// You may define your own function and pass the name in $overrides['unique_filename_callback']
 394	$unique_filename_callback = null;
 395
 396	// $_POST['action'] must be set and its value must equal $overrides['action'] or this:
 397	$action = 'wp_handle_sideload';
 398
 399	// Courtesy of php.net, the strings that describe the error indicated in $_FILES[{form field}]['error'].
 400	$upload_error_strings = array( false,
 401		__( "The uploaded file exceeds the <code>upload_max_filesize</code> directive in <code>php.ini</code>." ),
 402		__( "The uploaded file exceeds the <em>MAX_FILE_SIZE</em> directive that was specified in the HTML form." ),
 403		__( "The uploaded file was only partially uploaded." ),
 404		__( "No file was uploaded." ),
 405		'',
 406		__( "Missing a temporary folder." ),
 407		__( "Failed to write file to disk." ),
 408		__( "File upload stopped by extension." ));
 409
 410	// All tests are on by default. Most can be turned off by $overrides[{test_name}] = false;
 411	$test_form = true;
 412	$test_size = true;
 413
 414	// If you override this, you must provide $ext and $type!!!!
 415	$test_type = true;
 416	$mimes = false;
 417
 418	// Install user overrides. Did we mention that this voids your warranty?
 419	if ( is_array( $overrides ) )
 420		extract( $overrides, EXTR_OVERWRITE );
 421
 422	// A correct form post will pass this test.
 423	if ( $test_form && (!isset( $_POST['action'] ) || ($_POST['action'] != $action ) ) )
 424		return $upload_error_handler( $file, __( 'Invalid form submission.' ));
 425
 426	// A successful upload will pass this test. It makes no sense to override this one.
 427	if ( ! empty( $file['error'] ) )
 428		return $upload_error_handler( $file, $upload_error_strings[$file['error']] );
 429
 430	// A non-empty file will pass this test.
 431	if ( $test_size && !(filesize($file['tmp_name']) > 0 ) )
 432		return $upload_error_handler( $file, __( 'File is empty. Please upload something more substantial. This error could also be caused by uploads being disabled in your php.ini.' ));
 433
 434	// A properly uploaded file will pass this test. There should be no reason to override this one.
 435	if (! @ is_file( $file['tmp_name'] ) )
 436		return $upload_error_handler( $file, __( 'Specified file does not exist.' ));
 437
 438	// A correct MIME type will pass this test. Override $mimes or use the upload_mimes filter.
 439	if ( $test_type ) {
 440		$wp_filetype = wp_check_filetype_and_ext( $file['tmp_name'], $file['name'], $mimes );
 441
 442		extract( $wp_filetype );
 443
 444		// Check to see if wp_check_filetype_and_ext() determined the filename was incorrect
 445		if ( $proper_filename )
 446			$file['name'] = $proper_filename;
 447
 448		if ( ( !$type || !$ext ) && !current_user_can( 'unfiltered_upload' ) )
 449			return $upload_error_handler( $file, __( 'Sorry, this file type is not permitted for security reasons.' ));
 450
 451		if ( !$ext )
 452			$ext = ltrim(strrchr($file['name'], '.'), '.');
 453
 454		if ( !$type )
 455			$type = $file['type'];
 456	}
 457
 458	// A writable uploads dir will pass this test. Again, there's no point overriding this one.
 459	if ( ! ( ( $uploads = wp_upload_dir() ) && false === $uploads['error'] ) )
 460		return $upload_error_handler( $file, $uploads['error'] );
 461
 462	$filename = wp_unique_filename( $uploads['path'], $file['name'], $unique_filename_callback );
 463
 464	// Strip the query strings.
 465	$filename = str_replace('?','-', $filename);
 466	$filename = str_replace('&','-', $filename);
 467
 468	// Move the file to the uploads dir
 469	$new_file = $uploads['path'] . "/$filename";
 470	if ( false === @ rename( $file['tmp_name'], $new_file ) ) {
 471		return $upload_error_handler( $file, sprintf( __('The uploaded file could not be moved to %s.' ), $uploads['path'] ) );
 472	}
 473
 474	// Set correct file permissions
 475	$stat = stat( dirname( $new_file ));
 476	$perms = $stat['mode'] & 0000666;
 477	@ chmod( $new_file, $perms );
 478
 479	// Compute the URL
 480	$url = $uploads['url'] . "/$filename";
 481
 482	$return = apply_filters( 'wp_handle_upload', array( 'file' => $new_file, 'url' => $url, 'type' => $type ), 'sideload' );
 483
 484	return $return;
 485}
 486
 487/**
 488 * Downloads a url to a local temporary file using the WordPress HTTP Class.
 489 * Please note, That the calling function must unlink() the  file.
 490 *
 491 * @since 2.5.0
 492 *
 493 * @param string $url the URL of the file to download
 494 * @param int $timeout The timeout for the request to download the file default 300 seconds
 495 * @return mixed WP_Error on failure, string Filename on success.
 496 */
 497function download_url( $url, $timeout = 300 ) {
 498	//WARNING: The file is not automatically deleted, The script must unlink() the file.
 499	if ( ! $url )
 500		return new WP_Error('http_no_url', __('Invalid URL Provided.'));
 501
 502	$tmpfname = wp_tempnam($url);
 503	if ( ! $tmpfname )
 504		return new WP_Error('http_no_file', __('Could not create Temporary file.'));
 505
 506	$response = wp_remote_get( $url, array( 'timeout' => $timeout, 'stream' => true, 'filename' => $tmpfname ) );
 507
 508	if ( is_wp_error( $response ) ) {
 509		unlink( $tmpfname );
 510		return $response;
 511	}
 512
 513	if ( 200 != wp_remote_retrieve_response_code( $response ) ){
 514		unlink( $tmpfname );
 515		return new WP_Error( 'http_404', trim( wp_remote_retrieve_response_message( $response ) ) );
 516	}
 517
 518	return $tmpfname;
 519}
 520
 521/**
 522 * Unzips a specified ZIP file to a location on the Filesystem via the WordPress Filesystem Abstraction.
 523 * Assumes that WP_Filesystem() has already been called and set up. Does not extract a root-level __MACOSX directory, if present.
 524 *
 525 * Attempts to increase the PHP Memory limit to 256M before uncompressing,
 526 * However, The most memory required shouldn't be much larger than the Archive itself.
 527 *
 528 * @since 2.5.0
 529 *
 530 * @param string $file Full path and filename of zip archive
 531 * @param string $to Full path on the filesystem to extract archive to
 532 * @return mixed WP_Error on failure, True on success
 533 */
 534function unzip_file($file, $to) {
 535	global $wp_filesystem;
 536
 537	if ( ! $wp_filesystem || !is_object($wp_filesystem) )
 538		return new WP_Error('fs_unavailable', __('Could not access filesystem.'));
 539
 540	// Unzip can use a lot of memory, but not this much hopefully
 541	@ini_set( 'memory_limit', apply_filters( 'admin_memory_limit', WP_MAX_MEMORY_LIMIT ) );
 542
 543	$needed_dirs = array();
 544	$to = trailingslashit($to);
 545
 546	// Determine any parent dir's needed (of the upgrade directory)
 547	if ( ! $wp_filesystem->is_dir($to) ) { //Only do parents if no children exist
 548		$path = preg_split('![/\\\]!', untrailingslashit($to));
 549		for ( $i = count($path); $i >= 0; $i-- ) {
 550			if ( empty($path[$i]) )
 551				continue;
 552
 553			$dir = implode('/', array_slice($path, 0, $i+1) );
 554			if ( preg_match('!^[a-z]:$!i', $dir) ) // Skip it if it looks like a Windows Drive letter.
 555				continue;
 556
 557			if ( ! $wp_filesystem->is_dir($dir) )
 558				$needed_dirs[] = $dir;
 559			else
 560				break; // A folder exists, therefor, we dont need the check the levels below this
 561		}
 562	}
 563
 564	if ( class_exists('ZipArchive') && apply_filters('unzip_file_use_ziparchive', true ) ) {
 565		$result = _unzip_file_ziparchive($file, $to, $needed_dirs);
 566		if ( true === $result ) {
 567			return $result;
 568		} elseif ( is_wp_error($result) ) {
 569			if ( 'incompatible_archive' != $result->get_error_code() )
 570				return $result;
 571		}
 572	}
 573	// Fall through to PclZip if ZipArchive is not available, or encountered an error opening the file.
 574	return _unzip_file_pclzip($file, $to, $needed_dirs);
 575}
 576
 577/**
 578 * This function should not be called directly, use unzip_file instead. Attempts to unzip an archive using the ZipArchive class.
 579 * Assumes that WP_Filesystem() has already been called and set up.
 580 *
 581 * @since 3.0.0
 582 * @see unzip_file
 583 * @access private
 584 *
 585 * @param string $file Full path and filename of zip archive
 586 * @param string $to Full path on the filesystem to extract archive to
 587 * @param array $needed_dirs A partial list of required folders needed to be created.
 588 * @return mixed WP_Error on failure, True on success
 589 */
 590function _unzip_file_ziparchive($file, $to, $needed_dirs = array() ) {
 591	global $wp_filesystem;
 592
 593	$z = new ZipArchive();
 594
 595	// PHP4-compat - php4 classes can't contain constants
 596	$zopen = $z->open($file, /* ZIPARCHIVE::CHECKCONS */ 4);
 597	if ( true !== $zopen )
 598		return new WP_Error('incompatible_archive', __('Incompatible Archive.'));
 599
 600	for ( $i = 0; $i < $z->numFiles; $i++ ) {
 601		if ( ! $info = $z->statIndex($i) )
 602			return new WP_Error('stat_failed', __('Could not retrieve file from archive.'));
 603
 604		if ( '__MACOSX/' === substr($info['name'], 0, 9) ) // Skip the OS X-created __MACOSX directory
 605			continue;
 606
 607		if ( '/' == substr($info['name'], -1) ) // directory
 608			$needed_dirs[] = $to . untrailingslashit($info['name']);
 609		else
 610			$needed_dirs[] = $to . untrailingslashit(dirname($info['name']));
 611	}
 612
 613	$needed_dirs = array_unique($needed_dirs);
 614	foreach ( $needed_dirs as $dir ) {
 615		// Check the parent folders of the folders all exist within the creation array.
 616		if ( untrailingslashit($to) == $dir ) // Skip over the working directory, We know this exists (or will exist)
 617			continue;
 618		if ( strpos($dir, $to) === false ) // If the directory is not within the working directory, Skip it
 619			continue;
 620
 621		$parent_folder = dirname($dir);
 622		while ( !empty($parent_folder) && untrailingslashit($to) != $parent_folder && !in_array($parent_folder, $needed_dirs) ) {
 623			$needed_dirs[] = $parent_folder;
 624			$parent_folder = dirname($parent_folder);
 625		}
 626	}
 627	asort($needed_dirs);
 628
 629	// Create those directories if need be:
 630	foreach ( $needed_dirs as $_dir ) {
 631		if ( ! $wp_filesystem->mkdir($_dir, FS_CHMOD_DIR) && ! $wp_filesystem->is_dir($_dir) ) // Only check to see if the Dir exists upon creation failure. Less I/O this way.
 632			return new WP_Error('mkdir_failed', __('Could not create directory.'), $_dir);
 633	}
 634	unset($needed_dirs);
 635
 636	for ( $i = 0; $i < $z->numFiles; $i++ ) {
 637		if ( ! $info = $z->statIndex($i) )
 638			return new WP_Error('stat_failed', __('Could not retrieve file from archive.'));
 639
 640		if ( '/' == substr($info['name'], -1) ) // directory
 641			continue;
 642
 643		if ( '__MACOSX/' === substr($info['name'], 0, 9) ) // Don't extract the OS X-created __MACOSX directory files
 644			continue;
 645
 646		$contents = $z->getFromIndex($i);
 647		if ( false === $contents )
 648			return new WP_Error('extract_failed', __('Could not extract file from archive.'), $info['name']);
 649
 650		if ( ! $wp_filesystem->put_contents( $to . $info['name'], $contents, FS_CHMOD_FILE) )
 651			return new WP_Error('copy_failed', __('Could not copy file.'), $to . $info['filename']);
 652	}
 653
 654	$z->close();
 655
 656	return true;
 657}
 658
 659/**
 660 * This function should not be called directly, use unzip_file instead. Attempts to unzip an archive using the PclZip library.
 661 * Assumes that WP_Filesystem() has already been called and set up.
 662 *
 663 * @since 3.0.0
 664 * @see unzip_file
 665 * @access private
 666 *
 667 * @param string $file Full path and filename of zip archive
 668 * @param string $to Full path on the filesystem to extract archive to
 669 * @param array $needed_dirs A partial list of required folders needed to be created.
 670 * @return mixed WP_Error on failure, True on success
 671 */
 672function _unzip_file_pclzip($file, $to, $needed_dirs = array()) {
 673	global $wp_filesystem;
 674
 675	// See #15789 - PclZip uses string functions on binary data, If it's overloaded with Multibyte safe functions the results are incorrect.
 676	if ( ini_get('mbstring.func_overload') && function_exists('mb_internal_encoding') ) {
 677		$previous_encoding = mb_internal_encoding();
 678		mb_internal_encoding('ISO-8859-1');
 679	}
 680
 681	require_once(ABSPATH . 'wp-admin/includes/class-pclzip.php');
 682
 683	$archive = new PclZip($file);
 684
 685	$archive_files = $archive->extract(PCLZIP_OPT_EXTRACT_AS_STRING);
 686
 687	if ( isset($previous_encoding) )
 688		mb_internal_encoding($previous_encoding);
 689
 690	// Is the archive valid?
 691	if ( !is_array($archive_files) )
 692		return new WP_Error('incompatible_archive', __('Incompatible Archive.'), $archive->errorInfo(true));
 693
 694	if ( 0 == count($archive_files) )
 695		return new WP_Error('empty_archive', __('Empty archive.'));
 696
 697	// Determine any children directories needed (From within the archive)
 698	foreach ( $archive_files as $file ) {
 699		if ( '__MACOSX/' === substr($file['filename'], 0, 9) ) // Skip the OS X-created __MACOSX directory
 700			continue;
 701
 702		$needed_dirs[] = $to . untrailingslashit( $file['folder'] ? $file['filename'] : dirname($file['filename']) );
 703	}
 704
 705	$needed_dirs = array_unique($needed_dirs);
 706	foreach ( $needed_dirs as $dir ) {
 707		// Check the parent folders of the folders all exist within the creation array.
 708		if ( untrailingslashit($to) == $dir ) // Skip over the working directory, We know this exists (or will exist)
 709			continue;
 710		if ( strpos($dir, $to) === false ) // If the directory is not within the working directory, Skip it
 711			continue;
 712
 713		$parent_folder = dirname($dir);
 714		while ( !empty($parent_folder) && untrailingslashit($to) != $parent_folder && !in_array($parent_folder, $needed_dirs) ) {
 715			$needed_dirs[] = $parent_folder;
 716			$parent_folder = dirname($parent_folder);
 717		}
 718	}
 719	asort($needed_dirs);
 720
 721	// Create those directories if need be:
 722	foreach ( $needed_dirs as $_dir ) {
 723		if ( ! $wp_filesystem->mkdir($_dir, FS_CHMOD_DIR) && ! $wp_filesystem->is_dir($_dir) ) // Only check to see if the dir exists upon creation failure. Less I/O this way.
 724			return new WP_Error('mkdir_failed', __('Could not create directory.'), $_dir);
 725	}
 726	unset($needed_dirs);
 727
 728	// Extract the files from the zip
 729	foreach ( $archive_files as $file ) {
 730		if ( $file['folder'] )
 731			continue;
 732
 733		if ( '__MACOSX/' === substr($file['filename'], 0, 9) ) // Don't extract the OS X-created __MACOSX directory files
 734			continue;
 735
 736		if ( ! $wp_filesystem->put_contents( $to . $file['filename'], $file['content'], FS_CHMOD_FILE) )
 737			return new WP_Error('copy_failed', __('Could not copy file.'), $to . $file['filename']);
 738	}
 739	return true;
 740}
 741
 742/**
 743 * Copies a directory from one location to another via the WordPress Filesystem Abstraction.
 744 * Assumes that WP_Filesystem() has already been called and setup.
 745 *
 746 * @since 2.5.0
 747 *
 748 * @param string $from source directory
 749 * @param string $to destination directory
 750 * @param array $skip_list a list of files/folders to skip copying
 751 * @return mixed WP_Error on failure, True on success.
 752 */
 753function copy_dir($from, $to, $skip_list = array() ) {
 754	global $wp_filesystem;
 755
 756	$dirlist = $wp_filesystem->dirlist($from);
 757
 758	$from = trailingslashit($from);
 759	$to = trailingslashit($to);
 760
 761	$skip_regex = '';
 762	foreach ( (array)$skip_list as $key => $skip_file )
 763		$skip_regex .= preg_quote($skip_file, '!') . '|';
 764
 765	if ( !empty($skip_regex) )
 766		$skip_regex = '!(' . rtrim($skip_regex, '|') . ')$!i';
 767
 768	foreach ( (array) $dirlist as $filename => $fileinfo ) {
 769		if ( !empty($skip_regex) )
 770			if ( preg_match($skip_regex, $from . $filename) )
 771				continue;
 772
 773		if ( 'f' == $fileinfo['type'] ) {
 774			if ( ! $wp_filesystem->copy($from . $filename, $to . $filename, true, FS_CHMOD_FILE) ) {
 775				// If copy failed, chmod file to 0644 and try again.
 776				$wp_filesystem->chmod($to . $filename, 0644);
 777				if ( ! $wp_filesystem->copy($from . $filename, $to . $filename, true, FS_CHMOD_FILE) )
 778					return new WP_Error('copy_failed', __('Could not copy file.'), $to . $filename);
 779			}
 780		} elseif ( 'd' == $fileinfo['type'] ) {
 781			if ( !$wp_filesystem->is_dir($to . $filename) ) {
 782				if ( !$wp_filesystem->mkdir($to . $filename, FS_CHMOD_DIR) )
 783					return new WP_Error('mkdir_failed', __('Could not create directory.'), $to . $filename);
 784			}
 785			$result = copy_dir($from . $filename, $to . $filename, $skip_list);
 786			if ( is_wp_error($result) )
 787				return $result;
 788		}
 789	}
 790	return true;
 791}
 792
 793/**
 794 * Initialises and connects the WordPress Filesystem Abstraction classes.
 795 * This function will include the chosen transport and attempt connecting.
 796 *
 797 * Plugins may add extra transports, And force WordPress to use them by returning the filename via the 'filesystem_method_file' filter.
 798 *
 799 * @since 2.5.0
 800 *
 801 * @param array $args (optional) Connection args, These are passed directly to the WP_Filesystem_*() classes.
 802 * @param string $context (optional) Context for get_filesystem_method(), See function declaration for more information.
 803 * @return boolean false on failure, true on success
 804 */
 805function WP_Filesystem( $args = false, $context = false ) {
 806	global $wp_filesystem;
 807
 808	require_once(ABSPATH . 'wp-admin/includes/class-wp-filesystem-base.php');
 809
 810	$method = get_filesystem_method($args, $context);
 811
 812	if ( ! $method )
 813		return false;
 814
 815	if ( ! class_exists("WP_Filesystem_$method") ) {
 816		$abstraction_file = apply_filters('filesystem_method_file', ABSPATH . 'wp-admin/includes/class-wp-filesystem-' . $method . '.php', $method);
 817		if ( ! file_exists($abstraction_file) )
 818			return;
 819
 820		require_once($abstraction_file);
 821	}
 822	$method = "WP_Filesystem_$method";
 823
 824	$wp_filesystem = new $method($args);
 825
 826	//Define the timeouts for the connections. Only available after the construct is called to allow for per-transport overriding of the default.
 827	if ( ! defined('FS_CONNECT_TIMEOUT') )
 828		define('FS_CONNECT_TIMEOUT', 30);
 829	if ( ! defined('FS_TIMEOUT') )
 830		define('FS_TIMEOUT', 30);
 831
 832	if ( is_wp_error($wp_filesystem->errors) && $wp_filesystem->errors->get_error_code() )
 833		return false;
 834
 835	if ( !$wp_filesystem->connect() )
 836		return false; //There was an error connecting to the server.
 837
 838	// Set the permission constants if not already set.
 839	if ( ! defined('FS_CHMOD_DIR') )
 840		define('FS_CHMOD_DIR', 0755 );
 841	if ( ! defined('FS_CHMOD_FILE') )
 842		define('FS_CHMOD_FILE', 0644 );
 843
 844	return true;
 845}
 846
 847/**
 848 * Determines which Filesystem Method to use.
 849 * The priority of the Transports are: Direct, SSH2, FTP PHP Extension, FTP Sockets (Via Sockets class, or fsockopen())
 850 *
 851 * Note that the return value of this function can be overridden in 2 ways
 852 *  - By defining FS_METHOD in your <code>wp-config.php</code> file
 853 *  - By using the filesystem_method filter
 854 * Valid values for these are: 'direct', 'ssh', 'ftpext' or 'ftpsockets'
 855 * Plugins may also define a custom transport handler, See the WP_Filesystem function for more information.
 856 *
 857 * @since 2.5.0
 858 *
 859 * @param array $args Connection details.
 860 * @param string $context Full path to the directory that is tested for being writable.
 861 * @return string The transport to use, see description for valid return values.
 862 */
 863function get_filesystem_method($args = array(), $context = false) {
 864	$method = defined('FS_METHOD') ? FS_METHOD : false; //Please ensure that this is either 'direct', 'ssh', 'ftpext' or 'ftpsockets'
 865
 866	if ( ! $method && function_exists('getmyuid') && function_exists('fileowner') ){
 867		if ( !$context )
 868			$context = WP_CONTENT_DIR;
 869		$context = trailingslashit($context);
 870		$temp_file_name = $context . 'temp-write-test-' . time();
 871		$temp_handle = @fopen($temp_file_name, 'w');
 872		if ( $temp_handle ) {
 873			if ( getmyuid() == @fileowner($temp_file_name) )
 874				$method = 'direct';
 875			@fclose($temp_handle);
 876			@unlink($temp_file_name);
 877		}
 878 	}
 879
 880	if ( ! $method && isset($args['connection_type']) && 'ssh' == $args['connection_type'] && extension_loaded('ssh2') && function_exists('stream_get_contents') ) $method = 'ssh2';
 881	if ( ! $method && extension_loaded('ftp') ) $method = 'ftpext';
 882	if ( ! $method && ( extension_loaded('sockets') || function_exists('fsockopen') ) ) $method = 'ftpsockets'; //Sockets: Socket extension; PHP Mode: FSockopen / fwrite / fread
 883	return apply_filters('filesystem_method', $method, $args);
 884}
 885
 886/**
 887 * Displays a form to the user to request for their FTP/SSH details in order to  connect to the filesystem.
 888 * All chosen/entered details are saved, Excluding the Password.
 889 *
 890 * Hostnames may be in the form of hostname:portnumber (eg: wordpress.org:2467) to specify an alternate FTP/SSH port.
 891 *
 892 * Plugins may override this form by returning true|false via the <code>request_filesystem_credentials</code> filter.
 893 *
 894 * @since 2.5.0
 895 *
 896 * @param string $form_post the URL to post the form to
 897 * @param string $type the chosen Filesystem method in use
 898 * @param boolean $error if the current request has failed to connect
 899 * @param string $context The directory which is needed access to, The write-test will be performed on  this directory by get_filesystem_method()
 900 * @param string $extra_fields Extra POST fields which should be checked for to be included in the post.
 901 * @return boolean False on failure. True on success.
 902 */
 903function request_filesystem_credentials($form_post, $type = '', $error = false, $context = false, $extra_fields = null) {
 904	$req_cred = apply_filters( 'request_filesystem_credentials', '', $form_post, $type, $error, $context, $extra_fields );
 905	if ( '' !== $req_cred )
 906		return $req_cred;
 907
 908	if ( empty($type) )
 909		$type = get_filesystem_method(array(), $context);
 910
 911	if ( 'direct' == $type )
 912		return true;
 913
 914	if ( is_null( $extra_fields ) )
 915		$extra_fields = array( 'version', 'locale' );
 916
 917	$credentials = get_option('ftp_credentials', array( 'hostname' => '', 'username' => ''));
 918
 919	// If defined, set it to that, Else, If POST'd, set it to that, If not, Set it to whatever it previously was(saved details in option)
 920	$credentials['hostname'] = defined('FTP_HOST') ? FTP_HOST : (!empty($_POST['hostname']) ? stripslashes($_POST['hostname']) : $credentials['hostname']);
 921	$credentials['username'] = defined('FTP_USER') ? FTP_USER : (!empty($_POST['username']) ? stripslashes($_POST['username']) : $credentials['username']);
 922	$credentials['password'] = defined('FTP_PASS') ? FTP_PASS : (!empty($_POST['password']) ? stripslashes($_POST['password']) : '');
 923
 924	// Check to see if we are setting the public/private keys for ssh
 925	$credentials['public_key'] = defined('FTP_PUBKEY') ? FTP_PUBKEY : (!empty($_POST['public_key']) ? stripslashes($_POST['public_key']) : '');
 926	$credentials['private_key'] = defined('FTP_PRIKEY') ? FTP_PRIKEY : (!empty($_POST['private_key']) ? stripslashes($_POST['private_key']) : '');
 927
 928	//sanitize the hostname, Some people might pass in odd-data:
 929	$credentials['hostname'] = preg_replace('|\w+://|', '', $credentials['hostname']); //Strip any schemes off
 930
 931	if ( strpos($credentials['hostname'], ':') ) {
 932		list( $credentials['hostname'], $credentials['port'] ) = explode(':', $credentials['hostname'], 2);
 933		if ( ! is_numeric($credentials['port']) )
 934			unset($credentials['port']);
 935	} else {
 936		unset($credentials['port']);
 937	}
 938
 939	if ( (defined('FTP_SSH') && FTP_SSH) || (defined('FS_METHOD') && 'ssh' == FS_METHOD) )
 940		$credentials['connection_type'] = 'ssh';
 941	else if ( (defined('FTP_SSL') && FTP_SSL) && 'ftpext' == $type ) //Only the FTP Extension understands SSL
 942		$credentials['connection_type'] = 'ftps';
 943	else if ( !empty($_POST['connection_type']) )
 944		$credentials['connection_type'] = stripslashes($_POST['connection_type']);
 945	else if ( !isset($credentials['connection_type']) ) //All else fails (And its not defaulted to something else saved), Default to FTP
 946		$credentials['connection_type'] = 'ftp';
 947
 948	if ( ! $error &&
 949			(
 950				( !empty($credentials['password']) && !empty($credentials['username']) && !empty($credentials['hostname']) ) ||
 951				( 'ssh' == $credentials['connection_type'] && !empty($credentials['public_key']) && !empty($credentials['private_key']) )
 952			) ) {
 953		$stored_credentials = $credentials;
 954		if ( !empty($stored_credentials['port']) ) //save port as part of hostname to simplify above code.
 955			$stored_credentials['hostname'] .= ':' . $stored_credentials['port'];
 956
 957		unset($stored_credentials['password'], $stored_credentials['port'], $stored_credentials['private_key'], $stored_credentials['public_key']);
 958		update_option('ftp_credentials', $stored_credentials);
 959		return $credentials;
 960	}
 961	$hostname = '';
 962	$username = '';
 963	$password = '';
 964	$connection_type = '';
 965	if ( !empty($credentials) )
 966		extract($credentials, EXTR_OVERWRITE);
 967	if ( $error ) {
 968		$error_string = __('<strong>ERROR:</strong> There was an error connecting to the server, Please verify the settings are correct.');
 969		if ( is_wp_error($error) )
 970			$error_string = esc_html( $error->get_error_message() );
 971		echo '<div id="message" class="error"><p>' . $error_string . '</p></div>';
 972	}
 973
 974	$types = array();
 975	if ( extension_loaded('ftp') || extension_loaded('sockets') || function_exists('fsockopen') )
 976		$types[ 'ftp' ] = __('FTP');
 977	if ( extension_loaded('ftp') ) //Only this supports FTPS
 978		$types[ 'ftps' ] = __('FTPS (SSL)');
 979	if ( extension_loaded('ssh2') && function_exists('stream_get_contents') )
 980		$types[ 'ssh' ] = __('SSH2');
 981
 982	$types = apply_filters('fs_ftp_connection_types', $types, $credentials, $type, $error, $context);
 983
 984?>
 985<script type="text/javascript">
 986<!--
 987jQuery(function($){
 988	jQuery("#ssh").click(function () {
 989		jQuery("#ssh_keys").show();
 990	});
 991	jQuery("#ftp, #ftps").click(function () {
 992		jQuery("#ssh_keys").hide();
 993	});
 994	jQuery('form input[value=""]:first').focus();
 995});
 996-->
 997</script>
 998<form action="<?php echo $form_post ?>" method="post">
 999<div class="wrap">
1000<?php screen_icon(); ?>
1001<h2><?php _e('Connection Information') ?></h2>
1002<p><?php
1003	$label_user = __('Username');
1004	$label_pass = __('Password');
1005	_e('To perform the requested action, WordPress needs to access your web server.');
1006	echo ' ';
1007	if ( ( isset( $types['ftp'] ) || isset( $types['ftps'] ) ) ) {
1008		if ( isset( $types['ssh'] ) ) {
1009			_e('Please enter your FTP or SSH credentials to proceed.');
1010			$label_user = __('FTP/SSH Username');
1011			$label_pass = __('FTP/SSH Password');
1012		} else {
1013			_e('Please enter your FTP credentials to proceed.');
1014			$label_user = __('FTP Username');
1015			$label_pass = __('FTP Password');
1016		}
1017		echo ' ';
1018	}
1019	_e('If you do not remember your credentials, you should contact your web host.');
1020?></p>
1021<table class="form-table">
1022<tr valign="top">
1023<th scope="row"><label for="hostname"><?php _e('Hostname') ?></label></th>
1024<td><input name="hostname" type="text" id="hostname" value="<?php echo esc_attr($hostname); if ( !empty($port) ) echo ":$port"; ?>"<?php disabled( defined('FTP_HOST') ); ?> size="40" /></td>
1025</tr>
1026
1027<tr valign="top">
1028<th scope="row"><label for="username"><?php echo $label_user; ?></label></th>
1029<td><input name="username" type="text" id="username" value="<?php echo esc_attr($username) ?>"<?php disabled( defined('FTP_USER') ); ?> size="40" /></td>
1030</tr>
1031
1032<tr valign="top">
1033<th scope="row"><label for="password"><?php echo $label_pass; ?></label></th>
1034<td><input name="password" type="password" id="password" value="<?php if ( defined('FTP_PASS') ) echo '*****'; ?>"<?php disabled( defined('FTP_PASS') ); ?> size="40" /></td>
1035</tr>
1036
1037<?php if ( isset($types['ssh']) ) : ?>
1038<tr id="ssh_keys" valign="top" style="<?php if ( 'ssh' != $connection_type ) echo 'display:none' ?>">
1039<th scope="row"><?php _e('Authentication Keys') ?>
1040<div class="key-labels textright">
1041<label for="public_key"><?php _e('Public Key:') ?></label ><br />
1042<label for="private_key"><?php _e('Private Key:') ?></label>
1043</div></th>
1044<td><br /><input name="public_key" type="text" id="public_key" value="<?php echo esc_attr($public_key) ?>"<?php disabled( defined('FTP_PUBKEY') ); ?> size="40" /><br /><input name="private_key" type="text" id="private_key" value="<?php echo esc_attr($private_key) ?>"<?php disabled( defined('FTP_PRIKEY') ); ?> size="40" />
1045<div><?php _e('Enter the location on the server where the keys are located. If a passphrase is needed, enter that in the password field above.') ?></div></td>
1046</tr>
1047<?php endif; ?>
1048
1049<tr valign="top">
1050<th scope="row"><?php _e('Connection Type') ?></th>
1051<td>
1052<fieldset><legend class="screen-reader-text"><span><?php _e('Connection Type') ?></span></legend>
1053<?php
1054	$disabled = disabled( (defined('FTP_SSL') && FTP_SSL) || (defined('FTP_SSH') && FTP_SSH), true, false );
1055	foreach ( $types as $name => $text ) : ?>
1056	<label for="<?php echo esc_attr($name) ?>">
1057		<input type="radio" name="connection_type" id="<?php echo esc_attr($name) ?>" value="<?php echo esc_attr($name) ?>"<?php checked($name, $connection_type); echo $disabled; ?> />
1058		<?php echo $text ?>
1059	</label>
1060	<?php endforeach; ?>
1061</fieldset>
1062</td>
1063</tr>
1064</table>
1065
1066<?php
1067foreach ( (array) $extra_fields as $field ) {
1068	if ( isset( $_POST[ $field ] ) )
1069		echo '<input type="hidden" name="' . esc_attr( $field ) . '" value="' . esc_attr( stripslashes( $_POST[ $field ] ) ) . '" />';
1070}
1071submit_button( __( 'Proceed' ), 'button', 'upgrade' );
1072?>
1073</div>
1074</form>
1075<?php
1076	return false;
1077}
1078
1079?>