<?php

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if (!defined('UPDRAFTPLUS_DIR')) die('No direct access allowed.');

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// Converted to array options: yes

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// Converted to job_options: yes

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// Migrate options to new-style storage - May 2014

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if (!is_array(UpdraftPlus_Options::get_updraft_option('updraft_ftp')) && '' != UpdraftPlus_Options::get_updraft_option('updraft_server_address', '')) {

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$opts = array(

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'user' => UpdraftPlus_Options::get_updraft_option('updraft_ftp_login'),

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'pass' => UpdraftPlus_Options::get_updraft_option('updraft_ftp_pass'),

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'host' => UpdraftPlus_Options::get_updraft_option('updraft_server_address'),

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'path' => UpdraftPlus_Options::get_updraft_option('updraft_ftp_remote_path'),

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'passive' => true

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);

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UpdraftPlus_Options::update_updraft_option('updraft_ftp', $opts);

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UpdraftPlus_Options::delete_updraft_option('updraft_server_address');

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UpdraftPlus_Options::delete_updraft_option('updraft_ftp_pass');

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UpdraftPlus_Options::delete_updraft_option('updraft_ftp_remote_path');

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UpdraftPlus_Options::delete_updraft_option('updraft_ftp_login');

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}

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if (!class_exists('UpdraftPlus_BackupModule')) require_once(UPDRAFTPLUS_DIR.'/methods/backup-module.php');

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class UpdraftPlus_BackupModule_ftp extends UpdraftPlus_BackupModule {

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/**

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* Get FTP object with parameters set

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*

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* @param String $server Specify Server

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* @param String $user Specify Username

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* @param String $pass Specify Password

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* @param Boolean $disable_ssl Indicate whether to disable SSL

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* @param Boolean $disable_verify Indicate whether to disable verifiction

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* @param Boolean $use_server_certs Indicate whether to use server certificates

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* @param Boolean $passive Indicate whether to use passive FTP mode

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* @return Array

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*/

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private function getFTP($server, $user, $pass, $disable_ssl = false, $disable_verify = true, $use_server_certs = false, $passive = true) {

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if ('' == trim($server) || '' == trim($user) || '' == trim($pass)) return new WP_Error('no_settings', sprintf(__('No %s settings were found', 'updraftplus'), 'FTP'));

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if (!class_exists('UpdraftPlus_ftp_wrapper')) include_once(UPDRAFTPLUS_DIR.'/includes/ftp.class.php');

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$port = 21;

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if (preg_match('/^(.*):(\d+)$/', $server, $matches)) {

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$server = $matches[1];

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$port = $matches[2];

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}

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$ftp = new UpdraftPlus_ftp_wrapper($server, $user, $pass, $port);

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if ($disable_ssl) $ftp->ssl = false;

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$ftp->use_server_certs = $use_server_certs;

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$ftp->disable_verify = $disable_verify;

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$ftp->passive = ($passive) ? true : false;

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return $ftp;

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}

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/**

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* WordPress options filter, sanitising the FTP options saved from the options page

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*

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* @param Array $settings - the options, prior to sanitisation

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*

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* @return Array - the sanitised options for saving

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*/

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public function options_filter($settings) {

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if (is_array($settings) && !empty($settings['version']) && !empty($settings['settings'])) {

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foreach ($settings['settings'] as $instance_id => $instance_settings) {

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if (!empty($instance_settings['host']) && preg_match('#ftp(es|s)?://(.*)#i', $instance_settings['host'], $matches)) {

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$settings['settings'][$instance_id]['host'] = rtrim($matches[2], "/ \t\n\r\0x0B");

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}

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if (isset($instance_settings['pass'])) {

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$settings['settings'][$instance_id]['pass'] = trim($instance_settings['pass'], "\n\r\0\x0B");

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}

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}

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}

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return $settings;

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}

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public function get_supported_features() {

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// The 'multi_options' options format is handled via only accessing options via $this->get_options()

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return array('multi_options', 'config_templates', 'multi_storage', 'conditional_logic');

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}

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public function get_default_options() {

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return array(

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'host' => '',

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'user' => '',

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'pass' => '',

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'path' => '',

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'passive' => 1

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);

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}

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public function backup($backup_array) {

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global $updraftplus;

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$opts = $this->get_options();

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$ftp = $this->getFTP(

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$opts['host'],

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$opts['user'],

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$opts['pass'],

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$updraftplus->get_job_option('updraft_ssl_nossl'),

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$updraftplus->get_job_option('updraft_ssl_disableverify'),

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$updraftplus->get_job_option('updraft_ssl_useservercerts'),

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$opts['passive']

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);

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if (is_wp_error($ftp) || !$ftp->connect()) {

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if (is_wp_error($ftp)) {

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$updraftplus->log_wp_error($ftp);

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} else {

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$this->log("Failure: we did not successfully log in with those credentials.");

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}

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$this->log(__("login failure", 'updraftplus'), 'error');

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return false;

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}

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// $ftp->make_dir(); we may need to recursively create dirs? TODO

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$updraft_dir = $updraftplus->backups_dir_location().'/';

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$ftp_remote_path = trailingslashit($opts['path']);

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foreach ($backup_array as $file) {

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$fullpath = $updraft_dir.$file;

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$this->log("upload attempt: $file -> ftp://".$opts['user']."@".$opts['host']."/${ftp_remote_path}${file}");

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$timer_start = microtime(true);

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$size_k = round(filesize($fullpath)/1024, 1);

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// Note :Setting $resume to true unnecessarily is not meant to be a problem. Only ever (Feb 2014) seen one weird FTP server where calling SIZE on a non-existent file did create a problem. So, this code just helps that case. (the check for non-empty upload_status[p] is being cautious.

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$upload_status = $updraftplus->jobdata_get('uploading_substatus');

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if (0 == $updraftplus->current_resumption || (is_array($upload_status) && !empty($upload_status['p']) && 0 == $upload_status['p'])) {

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$resume = false;

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} else {

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$resume = true;

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}

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if ($ftp->put($fullpath, $ftp_remote_path.$file, FTP_BINARY, $resume, $updraftplus)) {

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$this->log("upload attempt successful (".$size_k."KB in ".(round(microtime(true)-$timer_start, 2)).'s)');

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$updraftplus->uploaded_file($file);

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} else {

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$this->log("ERROR: FTP upload failed");

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$this->log(__("upload failed", 'updraftplus'), 'error');

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}

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}

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return array('ftp_object' => $ftp, 'ftp_remote_path' => $ftp_remote_path);

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}

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public function listfiles($match = 'backup_') {

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global $updraftplus;

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$opts = $this->get_options();

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$ftp = $this->getFTP(

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$opts['host'],

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$opts['user'],

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$opts['pass'],

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$updraftplus->get_job_option('updraft_ssl_nossl'),

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$updraftplus->get_job_option('updraft_ssl_disableverify'),

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$updraftplus->get_job_option('updraft_ssl_useservercerts'),

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$opts['passive']

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);

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if (is_wp_error($ftp)) return $ftp;

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if (!$ftp->connect()) return new WP_Error('ftp_login_failed', sprintf(__("%s login failure", 'updraftplus'), 'FTP'));

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$ftp_remote_path = $opts['path'];

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if ($ftp_remote_path) $ftp_remote_path = trailingslashit($ftp_remote_path);

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$dirlist = $ftp->dir_list($ftp_remote_path);

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if (!is_array($dirlist)) return array();

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$results = array();

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foreach ($dirlist as $k => $path) {

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if ($ftp_remote_path) {

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// Feb 2015 - found a case where the directory path was not prefixed on

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if (0 !== strpos($path, $ftp_remote_path) && (false !== strpos('/', $ftp_remote_path) && false !== strpos('\\', $ftp_remote_path))) continue;

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if (0 === strpos($path, $ftp_remote_path)) $path = substr($path, strlen($ftp_remote_path));

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// if (0 !== strpos($path, $ftp_remote_path)) continue;

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// $path = substr($path, strlen($ftp_remote_path));

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if (0 === strpos($path, $match)) $results[]['name'] = $path;

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} else {

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if ('/' == substr($path, 0, 1)) $path = substr($path, 1);

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if (false !== strpos($path, '/')) continue;

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if (0 === strpos($path, $match)) $results[]['name'] = $path;

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}

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unset($dirlist[$k]);

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}

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// ftp_nlist() doesn't return file sizes. rawlist() does, but is tricky to parse. So, we get the sizes manually.

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foreach ($results as $ind => $name) {

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$size = $ftp->size($ftp_remote_path.$name['name']);

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if (0 === $size) {

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unset($results[$ind]);

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} elseif ($size>0) {

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$results[$ind]['size'] = $size;

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}

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}

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return $results;

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}

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/**

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* Delete a single file from the service using FTP protocols

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*

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* @param Array $files - array of file names to delete

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* @param Array $ftparr - FTP details/credentials

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* @param Array $sizeinfo - unused here

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* @return Boolean|String - either a boolean true or an error code string

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*/

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public function delete($files, $ftparr = array(), $sizeinfo = array()) {// phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable -- $sizeinfo unused

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global $updraftplus;

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if (is_string($files)) $files = array($files);

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$opts = $this->get_options();

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if (is_array($ftparr) && isset($ftparr['ftp_object'])) {

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$ftp = $ftparr['ftp_object'];

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} else {

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$ftp = $this->getFTP(

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$opts['host'],

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$opts['user'],

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$opts['pass'],

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$updraftplus->get_job_option('updraft_ssl_nossl'),

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$updraftplus->get_job_option('updraft_ssl_disableverify'),

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$updraftplus->get_job_option('updraft_ssl_useservercerts'),

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$opts['passive']

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);

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if (is_wp_error($ftp) || !$ftp->connect()) {

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if (is_wp_error($ftp)) $updraftplus->log_wp_error($ftp);

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$this->log("Failure: we did not successfully log in with those credentials (host=".$opts['host'].").");

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return 'authentication_fail';

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}

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}

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$ftp_remote_path = isset($ftparr['ftp_remote_path']) ? $ftparr['ftp_remote_path'] : trailingslashit($opts['path']);

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$ret = true;

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foreach ($files as $file) {

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if (@$ftp->delete($ftp_remote_path.$file)) {// phpcs:ignore Generic.PHP.NoSilencedErrors.Discouraged

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$this->log("delete: succeeded (${ftp_remote_path}${file})");

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} else {

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$this->log("delete: failed (${ftp_remote_path}${file})");

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$ret = 'file_delete_error';

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}

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}

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return $ret;

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}

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public function download($file) {

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global $updraftplus;

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$opts = $this->get_options();

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$ftp = $this->getFTP(

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$opts['host'],

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$opts['user'],

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$opts['pass'],

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$updraftplus->get_job_option('updraft_ssl_nossl'),

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$updraftplus->get_job_option('updraft_ssl_disableverify'),

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$updraftplus->get_job_option('updraft_ssl_useservercerts'),

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$opts['passive']

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);

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if (is_wp_error($ftp)) {

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$this->log('Failure to get FTP object: '.$ftp->get_error_code().': '.$ftp->get_error_message());

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$this->log($ftp->get_error_message().' ('.$ftp->get_error_code().')', 'error');

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return false;

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}

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if (!$ftp->connect()) {

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$this->log('Failure: we did not successfully log in with those credentials.');

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$this->log(__('login failure', 'updraftplus'), 'error');

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return false;

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}

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// $ftp->make_dir(); we may need to recursively create dirs? TODO

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$ftp_remote_path = trailingslashit($opts['path']);

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$fullpath = $updraftplus->backups_dir_location().'/'.$file;

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$resume = false;

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if (file_exists($fullpath)) {

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$resume = true;

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$this->log("File already exists locally; will resume: size: ".filesize($fullpath));

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}

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return $ftp->get($fullpath, $ftp_remote_path.$file, FTP_BINARY, $resume, $updraftplus);

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}

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private function ftp_possible() {

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$funcs_disabled = array();

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foreach (array('ftp_connect', 'ftp_login', 'ftp_nb_fput') as $func) {

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if (!function_exists($func)) $funcs_disabled['ftp'][] = $func;

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}

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$funcs_disabled = apply_filters('updraftplus_ftp_possible', $funcs_disabled);

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return (0 == count($funcs_disabled)) ? true : $funcs_disabled;

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}

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/**

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* Get the pre configuration template

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*

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* @return String - the template

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*/

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public function get_pre_configuration_template() {

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global $updraftplus_admin;

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global $updraftplus;

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$classes = $this->get_css_classes(false);

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?>

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<tr class="<?php echo $classes . ' ' . 'ftp_pre_config_container';?>">

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<td colspan="2">

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<h3><?php echo 'FTP'; ?></h3>

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<?php

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$possible = $this->ftp_possible();

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if (is_array($possible)) {

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// Check requirements.

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global $updraftplus_admin;

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$trans = array(

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'ftp' => __('regular non-encrypted FTP', 'updraftplus'),

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'ftpsslimplicit' => __('encrypted FTP (implicit encryption)', 'updraftplus'),

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'ftpsslexplicit' => __('encrypted FTP (explicit encryption)', 'updraftplus')

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);

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foreach ($possible as $type => $missing) {

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$updraftplus_admin->show_double_warning('<strong>'.__('Warning', 'updraftplus').':</strong> '. sprintf(__("Your web server's PHP installation has these functions disabled: %s.", 'updraftplus'), implode(', ', $missing)).' '.sprintf(__('Your hosting company must enable these functions before %s can work.', 'updraftplus'), $trans[$type]), 'ftp');

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}

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}

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?>

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<em><?php echo '<p>' . apply_filters('updraft_sftp_ftps_notice', '<strong>'.htmlspecialchars(__('Only non-encrypted FTP is supported by regular UpdraftPlus.')).'</strong> <a href="'.$updraftplus->get_url('premium').'" target="_blank">'.__('If you want encryption (e.g. you are storing sensitive business data), then an add-on is available in the Premium version.', 'updraftplus')).'</a></p>'; ?></em>

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</td>

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</tr>

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<?php

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}

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/**

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* Get the configuration template

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*

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* @return String - the template, ready for substitutions to be carried out

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*/

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public function get_configuration_template() {

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ob_start();

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$classes = $this->get_css_classes();

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?>

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<tr class="<?php echo $classes;?>">

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<th><?php _e('FTP server', 'updraftplus');?>:</th>

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<td><input class="updraft_input--wide" type="text" size="40" data-updraft_settings_test="server" <?php $this->output_settings_field_name_and_id('host');?> value="{{host}}" /></td>

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</tr>

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<tr class="<?php echo $classes;?>">

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<th><?php _e('FTP login', 'updraftplus');?>:</th>

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<td><input class="updraft_input--wide" type="text" size="40" data-updraft_settings_test="login" <?php $this->output_settings_field_name_and_id('user');?> value="{{user}}" /></td>

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</tr>

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<tr class="<?php echo $classes;?>">

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<th><?php _e('FTP password', 'updraftplus');?>:</th>

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<td><input class="updraft_input--wide" type="<?php echo apply_filters('updraftplus_admin_secret_field_type', 'password'); ?>" size="40" data-updraft_settings_test="pass" <?php $this->output_settings_field_name_and_id('pass');?> value="{{pass}}" /></td>

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</tr>

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<tr class="<?php echo $classes;?>">

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<th><?php _e('Remote path', 'updraftplus');?>:</th>

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<td><input title="<?php _e('Needs to already exist', 'updraftplus'); ?>" class="updraft_input--wide" type="text" size="64" data-updraft_settings_test="path" <?php $this->output_settings_field_name_and_id('path');?> value="{{path}}" /> <em><?php _e('Needs to already exist', 'updraftplus');?></em></td>

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</tr>

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<tr class="<?php echo $classes;?>">

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<th><?php _e('Passive mode', 'updraftplus');?>:</th>

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<td>

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<input title="<?php echo __('Almost all FTP servers will want passive mode; but if you need active mode, then uncheck this.', 'updraftplus');?>" type="checkbox" data-updraft_settings_test="passive" <?php $this->output_settings_field_name_and_id('passive');?> value="1" {{#ifeq '1' passive}}checked="checked"{{/ifeq}}> <br><em><?php echo __('Almost all FTP servers will want passive mode; but if you need active mode, then uncheck this.', 'updraftplus');?></em></td>

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</tr>

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<?php

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echo $this->get_test_button_html('FTP');

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return ob_get_clean();

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}

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/**

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* Perform a test of user-supplied credentials, and echo the result

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*

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* @param Array $posted_settings - settings to test

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*/

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public function credentials_test($posted_settings) {

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$server = $posted_settings['server'];

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$login = $posted_settings['login'];

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$pass = $posted_settings['pass'];

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$path = $posted_settings['path'];

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$nossl = $posted_settings['nossl'];

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$passive = empty($posted_settings['passive']) ? false : true;

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$disable_verify = $posted_settings['disableverify'];

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$use_server_certs = $posted_settings['useservercerts'];

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if (empty($server)) {

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_e('Failure: No server details were given.', 'updraftplus');

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return;

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}

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if (empty($login)) {

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printf(__('Failure: No %s was given.', 'updraftplus'), __('login', 'updraftplus'));

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return;

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}

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if (empty($pass)) {

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printf(__('Failure: No %s was given.', 'updraftplus'), __('password', 'updraftplus'));

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return;

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}

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if (preg_match('#ftp(es|s)?://(.*)#i', $server, $matches)) $server = untrailingslashit($matches[2]);

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// $ftp = $this->getFTP($server, $login, $pass, $nossl, $disable_verify, $use_server_certs);

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$ftp = $this->getFTP($server, $login, $pass, $nossl, $disable_verify, $use_server_certs, $passive);

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if (!$ftp->connect()) {

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_e('Failure: we did not successfully log in with those credentials.', 'updraftplus');

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return;

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}

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// $ftp->make_dir(); we may need to recursively create dirs? TODO

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$file = md5(rand(0, 99999999)).'.tmp';

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$fullpath = trailingslashit($path).$file;

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if ($ftp->put(ABSPATH.WPINC.'/version.php', $fullpath, FTP_BINARY, false, true)) {

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echo __("Success: we successfully logged in, and confirmed our ability to create a file in the given directory (login type:", 'updraftplus')." ".$ftp->login_type.')';

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@$ftp->delete($fullpath);// phpcs:ignore Generic.PHP.NoSilencedErrors.Discouraged

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} else {

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_e('Failure: we successfully logged in, but were not able to create a file in the given directory.', 'updraftplus');

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if (!empty($ftp->ssl)) {

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echo ' '.__('This is sometimes caused by a firewall - try turning off SSL in the expert settings, and testing again.', 'updraftplus');

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}

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}

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}

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/**

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* Check whether options have been set up by the user, or not

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*

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* @param Array $opts - the potential options

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*

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* @return Boolean

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*/

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public function options_exist($opts) {

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if (is_array($opts) && !empty($opts['host']) && isset($opts['user']) && '' != $opts['user']) return true;

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return false;

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}

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}

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