sys_get_temp_dir(), before finally defaulting to /tmp/
*
* In the event that this function does not find a writable location, It may be overridden by the WP_TEMP_DIR constant in your wp-config.php file.
*
* @since 2.5.0
*
* @return string Writable temporary directory
*/
function get_temp_dir() {
if ( defined('WP_TEMP_DIR') )
return trailingslashit(WP_TEMP_DIR);
$temp = WP_CONTENT_DIR . '/';
if ( is_dir($temp) && is_writable($temp) )
return $temp;
if ( function_exists('sys_get_temp_dir') )
return trailingslashit(sys_get_temp_dir());
return '/tmp/';
}
/**
* Returns a filename of a Temporary unique file.
* Please note that the calling function must unlink() this itself.
*
* The filename is based off the passed parameter or defaults to the current unix timestamp,
* while the directory can either be passed as well, or by leaving it blank, default to a writable temporary directory.
*
* @since 2.6.0
*
* @param string $filename (optional) Filename to base the Unique file off
* @param string $dir (optional) Directory to store the file in
* @return string a writable filename
*/
function wp_tempnam($filename = '', $dir = ''){
if ( empty($dir) )
$dir = get_temp_dir();
$filename = basename($filename);
if ( empty($filename) )
$filename = time();
$filename = preg_replace('|\..*$|', '.tmp', $filename);
$filename = $dir . wp_unique_filename($dir, $filename);
touch($filename);
return $filename;
}
/**
* {@internal Missing Short Description}}
*
* @since unknown
*
* @param unknown_type $file
* @param unknown_type $allowed_files
* @return unknown
*/
function validate_file_to_edit( $file, $allowed_files = '' ) {
$code = validate_file( $file, $allowed_files );
if (!$code )
return $file;
switch ( $code ) {
case 1 :
wp_die( __('Sorry, can’t edit files with “..” 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.' ));
//case 2 :
// wp_die( __('Sorry, can’t call files with their real path.' ));
case 3 :
wp_die( __('Sorry, that file cannot be edited.' ));
}
}
/**
* {@internal Missing Short Description}}
*
* @since unknown
*
* @param array $file Reference to a single element of $_FILES. Call the function once for each uploaded file.
* @param array $overrides Optional. An associative array of names=>values to override default variables with extract( $overrides, EXTR_OVERWRITE ).
* @return array On success, returns an associative array of file attributes. On failure, returns $overrides['upload_error_handler'](&$file, $message ) or array( 'error'=>$message ).
*/
function wp_handle_upload( &$file, $overrides = false, $time = null ) {
// The default error handler.
if (! function_exists( 'wp_handle_upload_error' ) ) {
function wp_handle_upload_error( &$file, $message ) {
return array( 'error'=>$message );
}
}
$file = apply_filters( 'wp_handle_upload_prefilter', $file );
// You may define your own function and pass the name in $overrides['upload_error_handler']
$upload_error_handler = 'wp_handle_upload_error';
// You may have had one or more 'wp_handle_upload_prefilter' functions error out the file. Handle that gracefully.
if ( isset( $file['error'] ) && !is_numeric( $file['error'] ) && $file['error'] )
return $upload_error_handler( $file, $file['error'] );
// You may define your own function and pass the name in $overrides['unique_filename_callback']
$unique_filename_callback = null;
// $_POST['action'] must be set and its value must equal $overrides['action'] or this:
$action = 'wp_handle_upload';
// Courtesy of php.net, the strings that describe the error indicated in $_FILES[{form field}]['error'].
$upload_error_strings = array( false,
__( "The uploaded file exceeds the upload_max_filesize directive in php.ini." ),
__( "The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form." ),
__( "The uploaded file was only partially uploaded." ),
__( "No file was uploaded." ),
'',
__( "Missing a temporary folder." ),
__( "Failed to write file to disk." ),
__( "File upload stopped by extension." ));
// All tests are on by default. Most can be turned off by $override[{test_name}] = false;
$test_form = true;
$test_size = true;
// If you override this, you must provide $ext and $type!!!!
$test_type = true;
$mimes = false;
// Install user overrides. Did we mention that this voids your warranty?
if ( is_array( $overrides ) )
extract( $overrides, EXTR_OVERWRITE );
// A correct form post will pass this test.
if ( $test_form && (!isset( $_POST['action'] ) || ($_POST['action'] != $action ) ) )
return $upload_error_handler( $file, __( 'Invalid form submission.' ));
// A successful upload will pass this test. It makes no sense to override this one.
if ( $file['error'] > 0 )
return $upload_error_handler( $file, $upload_error_strings[$file['error']] );
// A non-empty file will pass this test.
if ( $test_size && !($file['size'] > 0 ) )
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 or by post_max_size being defined as smaller than upload_max_filesize in php.ini.' ));
// A properly uploaded file will pass this test. There should be no reason to override this one.
if (! @ is_uploaded_file( $file['tmp_name'] ) )
return $upload_error_handler( $file, __( 'Specified file failed upload test.' ));
// A correct MIME type will pass this test. Override $mimes or use the upload_mimes filter.
if ( $test_type ) {
$wp_filetype = wp_check_filetype( $file['name'], $mimes );
extract( $wp_filetype );
if ( ( !$type || !$ext ) && !current_user_can( 'unfiltered_upload' ) )
return $upload_error_handler( $file, __( 'File type does not meet security guidelines. Try another.' ));
if ( !$ext )
$ext = ltrim(strrchr($file['name'], '.'), '.');
if ( !$type )
$type = $file['type'];
} else {
$type = '';
}
// A writable uploads dir will pass this test. Again, there's no point overriding this one.
if ( ! ( ( $uploads = wp_upload_dir($time) ) && false === $uploads['error'] ) )
return $upload_error_handler( $file, $uploads['error'] );
$filename = wp_unique_filename( $uploads['path'], $file['name'], $unique_filename_callback );
// Move the file to the uploads dir
$new_file = $uploads['path'] . "/$filename";
if ( false === @ move_uploaded_file( $file['tmp_name'], $new_file ) ) {
return $upload_error_handler( $file, sprintf( __('The uploaded file could not be moved to %s.' ), $uploads['path'] ) );
}
// Set correct file permissions
$stat = stat( dirname( $new_file ));
$perms = $stat['mode'] & 0000666;
@ chmod( $new_file, $perms );
// Compute the URL
$url = $uploads['url'] . "/$filename";
return apply_filters( 'wp_handle_upload', array( 'file' => $new_file, 'url' => $url, 'type' => $type ) );
}
/**
* {@internal Missing Short Description}}
*
* Pass this function an array similar to that of a $_FILES POST array.
*
* @since unknown
*
* @param unknown_type $file
* @param unknown_type $overrides
* @return unknown
*/
function wp_handle_sideload( &$file, $overrides = false ) {
// The default error handler.
if (! function_exists( 'wp_handle_upload_error' ) ) {
function wp_handle_upload_error( &$file, $message ) {
return array( 'error'=>$message );
}
}
// You may define your own function and pass the name in $overrides['upload_error_handler']
$upload_error_handler = 'wp_handle_upload_error';
// You may define your own function and pass the name in $overrides['unique_filename_callback']
$unique_filename_callback = null;
// $_POST['action'] must be set and its value must equal $overrides['action'] or this:
$action = 'wp_handle_sideload';
// Courtesy of php.net, the strings that describe the error indicated in $_FILES[{form field}]['error'].
$upload_error_strings = array( false,
__( "The uploaded file exceeds the upload_max_filesize directive in php.ini." ),
__( "The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form." ),
__( "The uploaded file was only partially uploaded." ),
__( "No file was uploaded." ),
'',
__( "Missing a temporary folder." ),
__( "Failed to write file to disk." ),
__( "File upload stopped by extension." ));
// All tests are on by default. Most can be turned off by $override[{test_name}] = false;
$test_form = true;
$test_size = true;
// If you override this, you must provide $ext and $type!!!!
$test_type = true;
$mimes = false;
// Install user overrides. Did we mention that this voids your warranty?
if ( is_array( $overrides ) )
extract( $overrides, EXTR_OVERWRITE );
// A correct form post will pass this test.
if ( $test_form && (!isset( $_POST['action'] ) || ($_POST['action'] != $action ) ) )
return $upload_error_handler( $file, __( 'Invalid form submission.' ));
// A successful upload will pass this test. It makes no sense to override this one.
if ( $file['error'] > 0 )
return $upload_error_handler( $file, $upload_error_strings[$file['error']] );
// A non-empty file will pass this test.
if ( $test_size && !(filesize($file['tmp_name']) > 0 ) )
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.' ));
// A properly uploaded file will pass this test. There should be no reason to override this one.
if (! @ is_file( $file['tmp_name'] ) )
return $upload_error_handler( $file, __( 'Specified file does not exist.' ));
// A correct MIME type will pass this test. Override $mimes or use the upload_mimes filter.
if ( $test_type ) {
$wp_filetype = wp_check_filetype( $file['name'], $mimes );
extract( $wp_filetype );
if ( ( !$type || !$ext ) && !current_user_can( 'unfiltered_upload' ) )
return $upload_error_handler( $file, __( 'File type does not meet security guidelines. Try another.' ));
if ( !$ext )
$ext = ltrim(strrchr($file['name'], '.'), '.');
if ( !$type )
$type = $file['type'];
}
// A writable uploads dir will pass this test. Again, there's no point overriding this one.
if ( ! ( ( $uploads = wp_upload_dir() ) && false === $uploads['error'] ) )
return $upload_error_handler( $file, $uploads['error'] );
$filename = wp_unique_filename( $uploads['path'], $file['name'], $unique_filename_callback );
// Strip the query strings.
$filename = str_replace('?','-', $filename);
$filename = str_replace('&','-', $filename);
// Move the file to the uploads dir
$new_file = $uploads['path'] . "/$filename";
if ( false === @ rename( $file['tmp_name'], $new_file ) ) {
return $upload_error_handler( $file, sprintf( __('The uploaded file could not be moved to %s.' ), $uploads['path'] ) );
}
// Set correct file permissions
$stat = stat( dirname( $new_file ));
$perms = $stat['mode'] & 0000666;
@ chmod( $new_file, $perms );
// Compute the URL
$url = $uploads['url'] . "/$filename";
$return = apply_filters( 'wp_handle_upload', array( 'file' => $new_file, 'url' => $url, 'type' => $type ) );
return $return;
}
/**
* Downloads a url to a local temporary file using the WordPress HTTP Class.
* Please note, That the calling function must unlink() the file.
*
* @since 2.5.0
*
* @param string $url the URL of the file to download
* @return mixed WP_Error on failure, string Filename on success.
*/
function download_url( $url ) {
//WARNING: The file is not automatically deleted, The script must unlink() the file.
if ( ! $url )
return new WP_Error('http_no_url', __('Invalid URL Provided'));
$tmpfname = wp_tempnam($url);
if ( ! $tmpfname )
return new WP_Error('http_no_file', __('Could not create Temporary file'));
$handle = @fopen($tmpfname, 'wb');
if ( ! $handle )
return new WP_Error('http_no_file', __('Could not create Temporary file'));
$response = wp_remote_get($url, array('timeout' => 300));
if ( is_wp_error($response) ) {
fclose($handle);
unlink($tmpfname);
return $response;
}
if ( $response['response']['code'] != '200' ){
fclose($handle);
unlink($tmpfname);
return new WP_Error('http_404', trim($response['response']['message']));
}
fwrite($handle, $response['body']);
fclose($handle);
return $tmpfname;
}
/**
* Unzip's a specified ZIP file to a location on the Filesystem via the WordPress Filesystem Abstraction.
* Assumes that WP_Filesystem() has already been called and set up.
*
* Attempts to increase the PHP Memory limit to 256M before uncompressing,
* However, The most memory required shouldn't be much larger than the Archive itself.
*
* @since 2.5.0
*
* @param string $file Full path and filename of zip archive
* @param string $to Full path on the filesystem to extract archive to
* @return mixed WP_Error on failure, True on success
*/
function unzip_file($file, $to) {
global $wp_filesystem;
if ( ! $wp_filesystem || !is_object($wp_filesystem) )
return new WP_Error('fs_unavailable', __('Could not access filesystem.'));
// Unzip uses a lot of memory, but not this much hopefully
@ini_set('memory_limit', '256M');
$fs =& $wp_filesystem;
require_once(ABSPATH . 'wp-admin/includes/class-pclzip.php');
$archive = new PclZip($file);
// Is the archive valid?
if ( false == ($archive_files = $archive->extract(PCLZIP_OPT_EXTRACT_AS_STRING)) )
return new WP_Error('incompatible_archive', __('Incompatible archive'), $archive->errorInfo(true));
if ( 0 == count($archive_files) )
return new WP_Error('empty_archive', __('Empty archive'));
$path = explode('/', untrailingslashit($to));
for ( $i = count($path); $i > 0; $i-- ) { //>0 = first element is empty allways for paths starting with '/'
$tmppath = implode('/', array_slice($path, 0, $i) );
if ( $fs->is_dir($tmppath) ) { //Found the highest folder that exists, Create from here(ie +1)
for ( $i = $i + 1; $i <= count($path); $i++ ) {
$tmppath = implode('/', array_slice($path, 0, $i) );
if ( ! $fs->mkdir($tmppath, FS_CHMOD_DIR) )
return new WP_Error('mkdir_failed', __('Could not create directory'), $tmppath);
}
break; //Exit main for loop
}
}
$to = trailingslashit($to);
foreach ($archive_files as $file) {
$path = $file['folder'] ? $file['filename'] : dirname($file['filename']);
$path = explode('/', $path);
for ( $i = count($path); $i >= 0; $i-- ) { //>=0 as the first element contains data
if ( empty($path[$i]) )
continue;
$tmppath = $to . implode('/', array_slice($path, 0, $i) );
if ( $fs->is_dir($tmppath) ) {//Found the highest folder that exists, Create from here
for ( $i = $i + 1; $i <= count($path); $i++ ) { //< count() no file component please.
$tmppath = $to . implode('/', array_slice($path, 0, $i) );
if ( ! $fs->is_dir($tmppath) && ! $fs->mkdir($tmppath, FS_CHMOD_DIR) )
return new WP_Error('mkdir_failed', __('Could not create directory'), $tmppath);
}
break; //Exit main for loop
}
}
// We've made sure the folders are there, so let's extract the file now:
if ( ! $file['folder'] ) {
if ( !$fs->put_contents( $to . $file['filename'], $file['content']) )
return new WP_Error('copy_failed', __('Could not copy file'), $to . $file['filename']);
$fs->chmod($to . $file['filename'], FS_CHMOD_FILE);
}
}
return true;
}
/**
* Copies a directory from one location to another via the WordPress Filesystem Abstraction.
* Assumes that WP_Filesystem() has already been called and setup.
*
* @since 2.5.0
*
* @param string $from source directory
* @param string $to destination directory
* @return mixed WP_Error on failure, True on success.
*/
function copy_dir($from, $to) {
global $wp_filesystem;
$dirlist = $wp_filesystem->dirlist($from);
$from = trailingslashit($from);
$to = trailingslashit($to);
foreach ( (array) $dirlist as $filename => $fileinfo ) {
if ( 'f' == $fileinfo['type'] ) {
if ( ! $wp_filesystem->copy($from . $filename, $to . $filename, true) ) {
// If copy failed, chmod file to 0644 and try again.
$wp_filesystem->chmod($to . $filename, 0644);
if ( ! $wp_filesystem->copy($from . $filename, $to . $filename, true) )
return new WP_Error('copy_failed', __('Could not copy file'), $to . $filename);
}
$wp_filesystem->chmod($to . $filename, FS_CHMOD_FILE);
} elseif ( 'd' == $fileinfo['type'] ) {
if ( !$wp_filesystem->is_dir($to . $filename) ) {
if ( !$wp_filesystem->mkdir($to . $filename, FS_CHMOD_DIR) )
return new WP_Error('mkdir_failed', __('Could not create directory'), $to . $filename);
}
$result = copy_dir($from . $filename, $to . $filename);
if ( is_wp_error($result) )
return $result;
}
}
return true;
}
/**
* Initialises and connects the WordPress Filesystem Abstraction classes.
* This function will include the chosen transport and attempt connecting.
*
* Plugins may add extra transports, And force WordPress to use them by returning the filename via the 'filesystem_method_file' filter.
*
* @since 2.5.0
*
* @param array $args (optional) Connection args, These are passed directly to the WP_Filesystem_*() classes.
* @param string $context (optional) Context for get_filesystem_method(), See function declaration for more information.
* @return boolean false on failure, true on success
*/
function WP_Filesystem( $args = false, $context = false ) {
global $wp_filesystem;
require_once(ABSPATH . 'wp-admin/includes/class-wp-filesystem-base.php');
$method = get_filesystem_method($args, $context);
if ( ! $method )
return false;
if ( ! class_exists("WP_Filesystem_$method") ) {
$abstraction_file = apply_filters('filesystem_method_file', ABSPATH . 'wp-admin/includes/class-wp-filesystem-' . $method . '.php', $method);
if( ! file_exists($abstraction_file) )
return;
require_once($abstraction_file);
}
$method = "WP_Filesystem_$method";
$wp_filesystem = new $method($args);
//Define the timeouts for the connections. Only available after the construct is called to allow for per-transport overriding of the default.
if ( ! defined('FS_CONNECT_TIMEOUT') )
define('FS_CONNECT_TIMEOUT', 30);
if ( ! defined('FS_TIMEOUT') )
define('FS_TIMEOUT', 30);
if ( is_wp_error($wp_filesystem->errors) && $wp_filesystem->errors->get_error_code() )
return false;
if ( !$wp_filesystem->connect() )
return false; //There was an erorr connecting to the server.
// Set the permission constants if not already set.
if ( ! defined('FS_CHMOD_DIR') )
define('FS_CHMOD_DIR', 0755 );
if ( ! defined('FS_CHMOD_FILE') )
define('FS_CHMOD_FILE', 0644 );
return true;
}
/**
* Determines which Filesystem Method to use.
* The priority of the Transports are: Direct, SSH2, FTP PHP Extension, FTP Sockets (Via Sockets class, or fsoxkopen())
*
* Note that the return value of this function can be overridden in 2 ways
* - By defining FS_METHOD in your wp-config.php file
* - By using the filesystem_method filter
* Valid values for these are: 'direct', 'ssh', 'ftpext' or 'ftpsockets'
* Plugins may also define a custom transport handler, See the WP_Filesystem function for more information.
*
* @since 2.5.0
*
* @param array $args Connection details.
* @param string $context Full path to the directory that is tested for being writable.
* @return string The transport to use, see description for valid return values.
*/
function get_filesystem_method($args = array(), $context = false) {
$method = defined('FS_METHOD') ? FS_METHOD : false; //Please ensure that this is either 'direct', 'ssh', 'ftpext' or 'ftpsockets'
if( ! $method && function_exists('getmyuid') && function_exists('fileowner') ){
if ( !$context )
$context = WP_CONTENT_DIR;
$context = trailingslashit($context);
$temp_file_name = $context . 'temp-write-test-' . time();
$temp_handle = @fopen($temp_file_name, 'w');
if ( $temp_handle ) {
if ( getmyuid() == @fileowner($temp_file_name) )
$method = 'direct';
@fclose($temp_handle);
@unlink($temp_file_name);
}
}
if ( ! $method && isset($args['connection_type']) && 'ssh' == $args['connection_type'] && extension_loaded('ssh2') && function_exists('stream_get_contents') ) $method = 'ssh2';
if ( ! $method && extension_loaded('ftp') ) $method = 'ftpext';
if ( ! $method && ( extension_loaded('sockets') || function_exists('fsockopen') ) ) $method = 'ftpsockets'; //Sockets: Socket extension; PHP Mode: FSockopen / fwrite / fread
return apply_filters('filesystem_method', $method, $args);
}
/**
* Displays a form to the user to request for their FTP/SSH details in order to connect to the filesystem.
* All chosen/entered details are saved, Excluding the Password.
*
* Hostnames may be in the form of hostname:portnumber (eg: wordpress.org:2467) to specify an alternate FTP/SSH port.
*
* Plugins may override this form by returning true|false via the request_filesystem_credentials filter.
*
* @since 2.5.0
*
* @param string $form_post the URL to post the form to
* @param string $type the chosen Filesystem method in use
* @param boolean $error if the current request has failed to connect
* @param string $context The directory which is needed access to, The write-test will be performed on this directory by get_filesystem_method()
* @return boolean False on failure. True on success.
*/
function request_filesystem_credentials($form_post, $type = '', $error = false, $context = false) {
$req_cred = apply_filters('request_filesystem_credentials', '', $form_post, $type, $error, $context);
if ( '' !== $req_cred )
return $req_cred;
if ( empty($type) )
$type = get_filesystem_method(array(), $context);
if ( 'direct' == $type )
return true;
$credentials = get_option('ftp_credentials', array( 'hostname' => '', 'username' => ''));
// 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)
$credentials['hostname'] = defined('FTP_HOST') ? FTP_HOST : (!empty($_POST['hostname']) ? stripslashes($_POST['hostname']) : $credentials['hostname']);
$credentials['username'] = defined('FTP_USER') ? FTP_USER : (!empty($_POST['username']) ? stripslashes($_POST['username']) : $credentials['username']);
$credentials['password'] = defined('FTP_PASS') ? FTP_PASS : (!empty($_POST['password']) ? stripslashes($_POST['password']) : '');
// Check to see if we are setting the public/private keys for ssh
$credentials['public_key'] = defined('FTP_PUBKEY') ? FTP_PUBKEY : (!empty($_POST['public_key']) ? stripslashes($_POST['public_key']) : '');
$credentials['private_key'] = defined('FTP_PRIKEY') ? FTP_PRIKEY : (!empty($_POST['private_key']) ? stripslashes($_POST['private_key']) : '');
//sanitize the hostname, Some people might pass in odd-data:
$credentials['hostname'] = preg_replace('|\w+://|', '', $credentials['hostname']); //Strip any schemes off
if ( strpos($credentials['hostname'], ':') ) {
list( $credentials['hostname'], $credentials['port'] ) = explode(':', $credentials['hostname'], 2);
if ( ! is_numeric($credentials['port']) )
unset($credentials['port']);
} else {
unset($credentials['port']);
}
if ( (defined('FTP_SSH') && FTP_SSH) || (defined('FS_METHOD') && 'ssh' == FS_METHOD) )
$credentials['connection_type'] = 'ssh';
else if ( (defined('FTP_SSL') && FTP_SSL) && 'ftpext' == $type ) //Only the FTP Extension understands SSL
$credentials['connection_type'] = 'ftps';
else if ( !empty($_POST['connection_type']) )
$credentials['connection_type'] = stripslashes($_POST['connection_type']);
else if ( !isset($credentials['connection_type']) ) //All else fails (And its not defaulted to something else saved), Default to FTP
$credentials['connection_type'] = 'ftp';
if ( ! $error &&
(
( !empty($credentials['password']) && !empty($credentials['username']) && !empty($credentials['hostname']) ) ||
( 'ssh' == $credentials['connection_type'] && !empty($credentials['public_key']) && !empty($credentials['private_key']) )
) ) {
$stored_credentials = $credentials;
if ( !empty($stored_credentials['port']) ) //save port as part of hostname to simplify above code.
$stored_credentials['hostname'] .= ':' . $stored_credentials['port'];
unset($stored_credentials['password'], $stored_credentials['port'], $stored_credentials['private_key'], $stored_credentials['public_key']);
update_option('ftp_credentials', $stored_credentials);
return $credentials;
}
$hostname = '';
$username = '';
$password = '';
$connection_type = '';
if ( !empty($credentials) )
extract($credentials, EXTR_OVERWRITE);
if ( $error ) {
$error_string = __('Error: There was an error connecting to the server, Please verify the settings are correct.');
if ( is_wp_error($error) )
$error_string = $error->get_error_message();
echo '' . $error_string . '