685 lines
16 KiB
PHP
685 lines
16 KiB
PHP
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<?php
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namespace W3TC;
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/**
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* W3 CDN FTP Class
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*/
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define( 'W3TC_CDN_FTP_CONNECT_TIMEOUT', 30 );
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/**
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* class CdnEngine_Ftp
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*/
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class CdnEngine_Ftp extends CdnEngine_Base {
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/**
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* FTP resource
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*
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* @var resource
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*/
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var $_ftp = null;
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/**
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* PHP5 Constructor
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*
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* @param array $config
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*/
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function __construct( $config = array() ) {
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$config = array_merge( array(
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'host' => '',
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'type' => '',
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'user' => '',
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'pass' => '',
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'default_keys' => false,
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'pubkey' => '',
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'privkey' => '',
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'path' => '',
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'pasv' => false,
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'domain' => array(),
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'docroot' => ''
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), $config );
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list( $ip, $port ) = Util_Content::endpoint_to_host_port( $config['host'], 21 );
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$config['host'] = $ip;
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$config['port'] = $port;
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if ( 'sftp' === $config['type'] && $config['default_keys'] ) {
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$home = isset( $_SERVER['HOME'] ) ? sanitize_text_field( wp_unslash( $_SERVER['HOME'] ) ) : '';
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$config['pubkey'] = $home . '/.ssh/id_rsa.pub';
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$config['privkey'] = $home . '/.ssh/id_rsa';
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}
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parent::__construct( $config );
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}
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/**
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* Connects to FTP server
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*
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* @param string $error
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* @return boolean
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*/
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function _connect( &$error ) {
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if ( empty( $this->_config['host'] ) ) {
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$error = 'Empty host.';
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return false;
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}
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$this->_set_error_handler();
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if ( $this->_config['type'] == 'sftp' ) {
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if ( !function_exists( 'ssh2_connect' ) ) {
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$error = sprintf('Missing required php-ssh2 extension.');
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$this->_restore_error_handler();
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$this->_disconnect();
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return false;
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}
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$this->_ftp = @ssh2_connect( $this->_config['host'], (int) $this->_config['port'] );
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return $this->_connect_sftp( $error );
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}
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if ( $this->_config['type'] == 'ftps' )
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$this->_ftp = @ftp_ssl_connect( $this->_config['host'],
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(int) $this->_config['port'], W3TC_CDN_FTP_CONNECT_TIMEOUT );
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else
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$this->_ftp = @ftp_connect( $this->_config['host'],
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(int) $this->_config['port'], W3TC_CDN_FTP_CONNECT_TIMEOUT );
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if ( !$this->_ftp ) {
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$error = sprintf( 'Unable to connect to %s:%d (%s).',
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$this->_config['host'], $this->_config['port'],
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$this->_get_last_error() );
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$this->_restore_error_handler();
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return false;
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}
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if ( !@ftp_login( $this->_ftp, $this->_config['user'], $this->_config['pass'] ) ) {
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$error = sprintf( 'Incorrect login or password (%s).', $this->_get_last_error() );
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$this->_restore_error_handler();
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$this->_disconnect();
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return false;
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}
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if ( !@ftp_pasv( $this->_ftp, $this->_config['pasv'] ) ) {
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$error = sprintf( 'Unable to change mode to passive (%s).', $this->_get_last_error() );
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$this->_restore_error_handler();
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$this->_disconnect();
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return false;
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}
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if ( !empty( $this->_config['path'] ) && !@ftp_chdir( $this->_ftp, $this->_config['path'] ) ) {
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$error = sprintf( 'Unable to change directory to: %s (%s).', $this->_config['path'], $this->_get_last_error() );
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$this->_restore_error_handler();
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$this->_disconnect();
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return false;
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}
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$this->_restore_error_handler();
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return true;
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}
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/**
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* Connects to SFTP server
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*
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* @param string $error
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* @return boolean
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*/
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function _connect_sftp( &$error ) {
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if ( is_file( $this->_config['pass'] ) ) {
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if ( !@ssh2_auth_pubkey_file( $this->_ftp, $this->_config['user'], $this->_config['pubkey'], $this->_config['privkey'], $this->_config['pass'] ) ) {
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$error = sprintf('Public key authentication failed (%s).', $this->_get_last_error());
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$this->_restore_error_handler();
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$this->_disconnect();
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return false;
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}
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} else {
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if ( !@ssh2_auth_password( $this->_ftp, $this->_config['user'], $this->_config['pass'] ) ) {
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$error = sprintf('Incorrect login or password (%s).', $this->_get_last_error());
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$this->_restore_error_handler();
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$this->_disconnect();
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return false;
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}
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}
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if ( !empty( $this->_config['path'] ) && !@ssh2_exec( $this->_ftp, 'cd ' . $this->_config['path'] ) ) {
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$error = sprintf( 'Unable to change directory to: %s (%s).', $this->_config['path'], $this->_get_last_error() );
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$this->_restore_error_handler();
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$this->_disconnect();
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return false;
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}
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$this->_restore_error_handler();
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return true;
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}
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/**
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* Disconnects from FTP server
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*/
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function _disconnect() {
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if ( $this->_config['type'] == 'sftp' ) {
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if ( function_exists( 'ssh2_connect' ) ) {
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@ssh2_exec( $this->_ftp, 'echo "EXITING" && exit;' );
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$this->_ftp = null;
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}
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} else {
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@ftp_close( $this->_ftp );
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}
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}
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/**
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* Sends MDTM command
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*
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* @param string $remote_file
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* @param integer $mtime
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* @return boolean
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*/
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function _mdtm( $remote_file, $mtime ) {
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$command = sprintf( 'MDTM %s %s', date( 'YmdHis', $mtime ), $remote_file );
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return @ftp_raw( $this->_ftp, $command );
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}
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/**
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* Uploads files to FTP
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*
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* @param array $files
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* @param array $results
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* @param boolean $force_rewrite
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* @return boolean
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*/
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function upload( $files, &$results, $force_rewrite = false,
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$timeout_time = NULL ) {
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$error = null;
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if ( !$this->_connect( $error ) ) {
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$results = $this->_get_results( $files, W3TC_CDN_RESULT_HALT, $error );
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return false;
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}
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$this->_set_error_handler();
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if ( $this->_config['type'] == 'sftp' ) {
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return $this->_upload_sftp( $files, $results, $force_rewrite, $timeout_time );
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}
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$home = @ftp_pwd( $this->_ftp );
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if ( $home === false ) {
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$results = $this->_get_results( $files, W3TC_CDN_RESULT_HALT, sprintf( 'Unable to get current directory (%s).', $this->_get_last_error() ) );
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$this->_restore_error_handler();
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$this->_disconnect();
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return false;
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}
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foreach ( $files as $file ) {
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$local_path = $file['local_path'];
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$remote_path = $file['remote_path'];
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// process at least one item before timeout so that progress goes on
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if ( !empty( $results ) ) {
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if ( !is_null( $timeout_time ) && time() > $timeout_time ) {
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return 'timeout';
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}
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}
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if ( !file_exists( $local_path ) ) {
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$results[] = $this->_get_result( $local_path, $remote_path,
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W3TC_CDN_RESULT_ERROR, 'Source file not found.', $file );
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continue;
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}
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@ftp_chdir( $this->_ftp, $home );
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$remote_dir = dirname( $remote_path );
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$remote_dirs = preg_split( '~\\/+~', $remote_dir );
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foreach ( $remote_dirs as $dir ) {
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if ( !@ftp_chdir( $this->_ftp, $dir ) ) {
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if ( !@ftp_mkdir( $this->_ftp, $dir ) ) {
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$results[] = $this->_get_result( $local_path,
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$remote_path, W3TC_CDN_RESULT_ERROR,
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sprintf( 'Unable to create directory (%s).',
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$this->_get_last_error() ),
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$file );
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continue 2;
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}
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if ( !@ftp_chdir( $this->_ftp, $dir ) ) {
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$results[] = $this->_get_result( $local_path,
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$remote_path, W3TC_CDN_RESULT_ERROR,
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sprintf( 'Unable to change directory (%s).',
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$this->_get_last_error() ),
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$file );
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continue 2;
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}
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}
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}
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// basename cannot be used, kills chinese chars and similar characters
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$remote_file = substr( $remote_path, strrpos( $remote_path, '/' )+1 );
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$mtime = @filemtime( $local_path );
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if ( !$force_rewrite ) {
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$size = @filesize( $local_path );
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$ftp_size = @ftp_size( $this->_ftp, $remote_file );
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$ftp_mtime = @ftp_mdtm( $this->_ftp, $remote_file );
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if ( $size === $ftp_size && $mtime === $ftp_mtime ) {
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$results[] = $this->_get_result( $local_path, $remote_path,
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W3TC_CDN_RESULT_OK, 'File up-to-date.', $file );
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continue;
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}
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}
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$result = @ftp_put( $this->_ftp, $remote_file, $local_path, FTP_BINARY );
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if ( $result ) {
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$this->_mdtm( $remote_file, $mtime );
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$results[] = $this->_get_result( $local_path, $remote_path,
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W3TC_CDN_RESULT_OK, 'OK', $file );
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} else {
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$results[] = $this->_get_result( $local_path, $remote_path,
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W3TC_CDN_RESULT_ERROR,
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sprintf( 'Unable to upload file (%s).',
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$this->_get_last_error() ),
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$file );
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}
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}
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$this->_restore_error_handler();
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$this->_disconnect();
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return !$this->_is_error( $results );
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}
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/**
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* Uploads files to SFTP
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*
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* @param array $files
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* @param array $results
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* @param boolean $force_rewrite
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* @return boolean
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*/
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function _upload_sftp( $files, $results, $force_rewrite, $timeout_time ) {
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$sftp = ssh2_sftp( $this->_ftp );
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foreach ( $files as $file ) {
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$local_path = $file['local_path'];
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$remote_path = $file['remote_path'];
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// process at least one item before timeout so that progress goes on
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if ( !empty( $results ) ) {
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if ( !is_null( $timeout_time ) && time() > $timeout_time ) {
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return 'timeout';
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}
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}
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if ( !file_exists( $local_path ) ) {
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$results[] = $this->_get_result( $local_path, $remote_path,
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W3TC_CDN_RESULT_ERROR, 'Source file not found.', $file );
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continue;
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}
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$remote_dir = dirname( $remote_path );
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if ( !@file_exists( 'ssh2.sftp://' . intval($sftp) . $remote_dir ) ) {
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if ( !@ssh2_sftp_mkdir( $sftp, $remote_dir, null, true ) ) {
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$results[] = $this->_get_result( $local_path,
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$remote_path, W3TC_CDN_RESULT_ERROR,
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sprintf( 'Unable to create directory (%s).',
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$this->_get_last_error() ),
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$file );
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continue;
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}
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}
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$mtime = @filemtime( $local_path );
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if ( !$force_rewrite ) {
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$size = @filesize( $local_path );
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$statinfo = @ssh2_sftp_stat( $sftp, $remote_path );
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if ( $size === $statinfo['size'] && $mtime === $statinfo['mtime'] ) {
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$results[] = $this->_get_result( $local_path, $remote_path,
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W3TC_CDN_RESULT_OK, 'File up-to-date.', $file );
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continue;
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}
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}
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$result = @ssh2_scp_send( $this->_ftp, $local_path, $remote_path );
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if ( $result ) {
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$results[] = $this->_get_result( $local_path, $remote_path,
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|
|
W3TC_CDN_RESULT_OK, 'OK', $file );
|
||
|
|
} else {
|
||
|
|
$results[] = $this->_get_result( $local_path, $remote_path,
|
||
|
|
W3TC_CDN_RESULT_ERROR,
|
||
|
|
sprintf( 'Unable to upload file (%s).',
|
||
|
|
$this->_get_last_error() ),
|
||
|
|
$file );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->_restore_error_handler();
|
||
|
|
$this->_disconnect();
|
||
|
|
|
||
|
|
return !$this->_is_error( $results );
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Deletes files from FTP
|
||
|
|
*
|
||
|
|
* @param array $files
|
||
|
|
* @param array $results
|
||
|
|
* @return boolean
|
||
|
|
*/
|
||
|
|
function delete( $files, &$results ) {
|
||
|
|
$error = null;
|
||
|
|
|
||
|
|
if ( !$this->_connect( $error ) ) {
|
||
|
|
$results = $this->_get_results( $files, W3TC_CDN_RESULT_HALT, $error );
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->_set_error_handler();
|
||
|
|
|
||
|
|
foreach ( $files as $file ) {
|
||
|
|
$local_path = $file['local_path'];
|
||
|
|
$remote_path = $file['remote_path'];
|
||
|
|
|
||
|
|
if ( $this->_config['type'] == 'sftp' ) {
|
||
|
|
$sftp = @ssh2_sftp( $this->_ftp );
|
||
|
|
$result = @ssh2_sftp_unlink( $sftp, $remote_path );
|
||
|
|
} else {
|
||
|
|
$result = @ftp_delete( $this->_ftp, $remote_path );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( $result ) {
|
||
|
|
$results[] = $this->_get_result( $local_path, $remote_path,
|
||
|
|
W3TC_CDN_RESULT_OK, 'OK', $file );
|
||
|
|
} else {
|
||
|
|
$results[] = $this->_get_result( $local_path, $remote_path,
|
||
|
|
W3TC_CDN_RESULT_ERROR,
|
||
|
|
sprintf( 'Unable to delete file (%s).',
|
||
|
|
$this->_get_last_error() ),
|
||
|
|
$file );
|
||
|
|
}
|
||
|
|
|
||
|
|
while ( true ) {
|
||
|
|
$remote_path = dirname( $remote_path );
|
||
|
|
|
||
|
|
if ( $remote_path == '.' ) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( $this->_config['type'] == 'sftp' && !@ssh2_sftp_rmdir( $sftp, $remote_path ) ) {
|
||
|
|
break;
|
||
|
|
} else if ( !@ftp_rmdir( $this->_ftp, $remote_path ) ) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->_restore_error_handler();
|
||
|
|
$this->_disconnect();
|
||
|
|
|
||
|
|
return !$this->_is_error( $results );
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Tests FTP server
|
||
|
|
*
|
||
|
|
* @param string $error
|
||
|
|
* @return boolean
|
||
|
|
*/
|
||
|
|
function test( &$error ) {
|
||
|
|
if ( !parent::test( $error ) ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( $this->_config['type'] == 'sftp' ) {
|
||
|
|
return $this->_test_sftp( $error );
|
||
|
|
}
|
||
|
|
|
||
|
|
$rand = md5( time() );
|
||
|
|
$tmp_dir = 'test_dir_' . $rand;
|
||
|
|
$tmp_file = 'test_file_' . $rand;
|
||
|
|
$tmp_path = W3TC_CACHE_TMP_DIR . '/' . $tmp_file;
|
||
|
|
|
||
|
|
if ( !@file_put_contents( $tmp_path, $rand ) ) {
|
||
|
|
$error = sprintf( 'Unable to create file: %s.', $tmp_path );
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( !$this->_connect( $error ) ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->_set_error_handler();
|
||
|
|
|
||
|
|
if ( !@ftp_mkdir( $this->_ftp, $tmp_dir ) ) {
|
||
|
|
$error = sprintf( 'Unable to make directory: %s (%s).', $tmp_dir, $this->_get_last_error() );
|
||
|
|
|
||
|
|
@unlink( $tmp_path );
|
||
|
|
|
||
|
|
$this->_restore_error_handler();
|
||
|
|
$this->_disconnect();
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( file_exists( $this->_config['docroot'] . '/' . $tmp_dir ) ) {
|
||
|
|
$error = sprintf( 'Test directory was made in your site root, not on separate FTP host or path. Change path or FTP information: %s.', $tmp_dir );
|
||
|
|
|
||
|
|
@unlink( $tmp_path );
|
||
|
|
@ftp_rmdir( $this->_ftp, $tmp_dir );
|
||
|
|
|
||
|
|
$this->_restore_error_handler();
|
||
|
|
$this->_disconnect();
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( !@ftp_chdir( $this->_ftp, $tmp_dir ) ) {
|
||
|
|
$error = sprintf( 'Unable to change directory to: %s (%s).', $tmp_dir, $this->_get_last_error() );
|
||
|
|
|
||
|
|
@unlink( $tmp_path );
|
||
|
|
@ftp_rmdir( $this->_ftp, $tmp_dir );
|
||
|
|
|
||
|
|
$this->_restore_error_handler();
|
||
|
|
$this->_disconnect();
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( !@ftp_put( $this->_ftp, $tmp_file, $tmp_path, FTP_BINARY ) ) {
|
||
|
|
$error = sprintf( 'Unable to upload file: %s (%s).', $tmp_path, $this->_get_last_error() );
|
||
|
|
|
||
|
|
@unlink( $tmp_path );
|
||
|
|
@ftp_cdup( $this->_ftp );
|
||
|
|
@ftp_rmdir( $this->_ftp, $tmp_dir );
|
||
|
|
|
||
|
|
$this->_restore_error_handler();
|
||
|
|
$this->_disconnect();
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
@unlink( $tmp_path );
|
||
|
|
|
||
|
|
if ( !@ftp_delete( $this->_ftp, $tmp_file ) ) {
|
||
|
|
$error = sprintf( 'Unable to delete file: %s (%s).', $tmp_path, $this->_get_last_error() );
|
||
|
|
|
||
|
|
@ftp_cdup( $this->_ftp );
|
||
|
|
@ftp_rmdir( $this->_ftp, $tmp_dir );
|
||
|
|
|
||
|
|
$this->_restore_error_handler();
|
||
|
|
$this->_disconnect();
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
@ftp_cdup( $this->_ftp );
|
||
|
|
|
||
|
|
if ( !@ftp_rmdir( $this->_ftp, $tmp_dir ) ) {
|
||
|
|
$error = sprintf( 'Unable to remove directory: %s (%s).', $tmp_dir, $this->_get_last_error() );
|
||
|
|
|
||
|
|
$this->_restore_error_handler();
|
||
|
|
$this->_disconnect();
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->_restore_error_handler();
|
||
|
|
$this->_disconnect();
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Tests FTP server
|
||
|
|
*
|
||
|
|
* @param string $error
|
||
|
|
* @return boolean
|
||
|
|
*/
|
||
|
|
function _test_sftp( &$error ) {
|
||
|
|
|
||
|
|
$rand = md5( time() );
|
||
|
|
$tmp_dir = 'test_dir_' . $rand;
|
||
|
|
$tmp_file = 'test_file_' . $rand;
|
||
|
|
$local_path = W3TC_CACHE_TMP_DIR . '/' . $tmp_file;
|
||
|
|
$remote_path = $tmp_dir . '/' . $tmp_file;
|
||
|
|
|
||
|
|
if ( !@file_put_contents( $local_path, $rand ) ) {
|
||
|
|
$error = sprintf( 'Unable to create file: %s.', $local_path );
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( !$this->_connect( $error ) ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$sftp = @ssh2_sftp( $this->_ftp );
|
||
|
|
|
||
|
|
$this->_set_error_handler();
|
||
|
|
|
||
|
|
if ( !@ssh2_sftp_mkdir( $sftp, $tmp_dir ) ) {
|
||
|
|
$error = sprintf( 'Unable to make directory: %s (%s).', $tmp_dir, $this->_get_last_error() );
|
||
|
|
|
||
|
|
@unlink( $local_path );
|
||
|
|
|
||
|
|
$this->_restore_error_handler();
|
||
|
|
$this->_disconnect();
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( file_exists( $this->_config['docroot'] . '/' . $tmp_dir ) ) {
|
||
|
|
$error = sprintf( 'Test directory was made in your site root, not on separate FTP host or path. Change path or FTP information: %s.', $tmp_dir );
|
||
|
|
|
||
|
|
@unlink( $local_path );
|
||
|
|
@ssh2_sftp_rmdir( $sftp, $tmp_dir );
|
||
|
|
|
||
|
|
$this->_restore_error_handler();
|
||
|
|
$this->_disconnect();
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( !@ssh2_scp_send( $this->_ftp, $local_path, $remote_path ) ) {
|
||
|
|
$error = sprintf( 'Unable to upload file: %s (%s).', $local_path, $this->_get_last_error() );
|
||
|
|
|
||
|
|
@unlink( $local_path );
|
||
|
|
@ssh2_sftp_rmdir( $sftp, $tmp_dir );
|
||
|
|
|
||
|
|
$this->_restore_error_handler();
|
||
|
|
$this->_disconnect();
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
@unlink( $local_path );
|
||
|
|
|
||
|
|
if ( !@ssh2_sftp_unlink( $sftp, $remote_path ) ) {
|
||
|
|
$error = sprintf( 'Unable to delete file: %s (%s).', $local_path, $this->_get_last_error() );
|
||
|
|
|
||
|
|
@ssh2_sftp_rmdir( $sftp, $tmp_dir );
|
||
|
|
|
||
|
|
$this->_restore_error_handler();
|
||
|
|
$this->_disconnect();
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( !@ssh2_sftp_rmdir( $sftp, $tmp_dir ) ) {
|
||
|
|
$error = sprintf( 'Unable to remove directory: %s (%s).', $tmp_dir, $this->_get_last_error() );
|
||
|
|
|
||
|
|
$this->_restore_error_handler();
|
||
|
|
$this->_disconnect();
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->_restore_error_handler();
|
||
|
|
$this->_disconnect();
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns array of CDN domains
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
function get_domains() {
|
||
|
|
if ( !empty( $this->_config['domain'] ) ) {
|
||
|
|
return (array) $this->_config['domain'];
|
||
|
|
}
|
||
|
|
|
||
|
|
return array();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* How and if headers should be set
|
||
|
|
*
|
||
|
|
* @return string W3TC_CDN_HEADER_NONE, W3TC_CDN_HEADER_UPLOADABLE, W3TC_CDN_HEADER_MIRRORING
|
||
|
|
*/
|
||
|
|
function headers_support() {
|
||
|
|
return W3TC_CDN_HEADER_MIRRORING;
|
||
|
|
}
|
||
|
|
}
|