class-wpvivid-ftpclass.php — WPvivid — Backup, Migration & Staging 0.9.73

wpvivid-backuprestore / includes / customclass / class-wpvivid-ftpclass.php

wpvivid-backuprestore / includes / customclass Last commit date

class-wpvivid-ftpclass.php

693 lines

1	<?php
2
3	if (!defined('WPVIVID_PLUGIN_DIR')){
4	die;
5	}
6
7	if(!defined('WPVIVID_REMOTE_FTP'))
8	define('WPVIVID_REMOTE_FTP','ftp');
9
10	require_once WPVIVID_PLUGIN_DIR .'/includes/customclass/class-wpvivid-remote.php';
11	class WPvivid_FTPClass extends WPvivid_Remote{
12	private $time_out = 20;
13	private $callback;
14	private $options=array();
15
16	public function __construct($options=array())
17	{
18	if(empty($options))
19	{
20	add_action('wpvivid_add_storage_tab',array($this,'wpvivid_add_storage_tab_ftp'), 15);
21	add_action('wpvivid_add_storage_page',array($this,'wpvivid_add_storage_page_ftp'), 15);
22	add_action('wpvivid_edit_remote_page',array($this,'wpvivid_edit_storage_page_ftp'), 15);
23	add_filter('wpvivid_remote_pic',array($this,'wpvivid_remote_pic_ftp'),9);
24	add_filter('wpvivid_get_out_of_date_remote',array($this,'wpvivid_get_out_of_date_ftp'),10,2);
25	add_filter('wpvivid_storage_provider_tran',array($this,'wpvivid_storage_provider_ftp'),10);
26
27	}else{
28	$this->options = $options;
29	}
30	}
31
32	public function wpvivid_add_storage_tab_ftp()
33	{
34	?>
35	<div class="storage-providers" remote_type="ftp" onclick="select_remote_storage(event, 'storage_account_ftp');">
36	<img src="<?php echo esc_url(WPVIVID_PLUGIN_URL.'/admin/partials/images/storage-ftp.png'); ?>" style="vertical-align:middle;"/><?php _e('FTP', 'wpvivid-backuprestore'); ?>
37	</div>
38	<?php
39	}
40
41	public function wpvivid_add_storage_page_ftp()
42	{
43	?>
44	<div id="storage_account_ftp" class="storage-account-page" style="display:none;">
45	<div style="padding: 0 10px 10px 0;"><strong><?php _e('Enter Your FTP Account', 'wpvivid-backuprestore'); ?></strong></div>
46	<table class="wp-list-table widefat plugins" style="width:100%;">
47	<tbody>
48	<form>
49	<tr>
50	<td class="plugin-title column-primary">
51	<div class="wpvivid-storage-form">
52	<input type="text" autocomplete="off" option="ftp" name="name" placeholder="<?php esc_attr_e('Enter an unique alias: e.g. FTP-001', 'wpvivid-backuprestore'); ?>" class="regular-text" onkeyup="value=value.replace(/[^a-zA-Z0-9\-_]/g,'')" />
53	</div>
54	</td>
55	<td class="column-description desc">
56	<div class="wpvivid-storage-form-desc">
57	<i><?php _e('A name to help you identify the storage if you have multiple remote storage connected.', 'wpvivid-backuprestore'); ?></i>
58	</div>
59	</td>
60	</tr>
61	<tr>
62	<td class="plugin-title column-primary">
63	<div class="wpvivid-storage-form">
64	<input type="text" autocomplete="off" option="ftp" name="server" placeholder="<?php esc_attr_e('FTP server (server\'s port 21)','wpvivid-backuprestore'); ?>" class="regular-text"/>
65	</div>
66	</td>
67	<td class="column-description desc">
68	<div class="wpvivid-storage-form-desc">
69	<i style="margin-right: 10px;"><?php _e('Enter the FTP server.', 'wpvivid-backuprestore'); ?></i>
70	</div>
71	</td>
72	</tr>
73	<tr>
74	<td class="plugin-title column-primary">
75	<div class="wpvivid-storage-form">
76	<input type="text" autocomplete="off" class="regular-text" value="21" readonly="readonly" />
77	</div>
78	</td>
79	<td class="column-description desc">
80	<div class="wpvivid-storage-form-desc">
81	<a href="https://docs.wpvivid.com/wpvivid-backup-pro-ftp-change-ftp-default-port.html"><?php _e('Pro feature: Change the FTP default port number', 'wpvivid-backuprestore'); ?></a>
82	</div>
83	</td>
84	</tr>
85	<tr>
86	<td class="plugin-title column-primary">
87	<div class="wpvivid-storage-form">
88	<input type="text" class="regular-text" autocomplete="off" option="ftp" name="username" placeholder="<?php esc_attr_e('FTP login', 'wpvivid-backuprestore'); ?>" />
89	</div>
90	</td>
91	<td class="column-description desc">
92	<div class="wpvivid-storage-form-desc">
93	<i><?php _e('Enter your FTP server user name.', 'wpvivid-backuprestore'); ?></i>
94	</div>
95	</td>
96	</tr>
97	<tr>
98	<td class="plugin-title column-primary">
99	<div class="wpvivid-storage-form">
100	<input type="password" class="regular-text" autocomplete="new-password" option="ftp" name="password" placeholder="<?php esc_attr_e('FTP password', 'wpvivid-backuprestore'); ?>" />
101	</div>
102	</td>
103	<td class="column-description desc">
104	<div class="wpvivid-storage-form-desc">
105	<i><?php _e('Enter the FTP server password.', 'wpvivid-backuprestore'); ?></i>
106	</div>
107	</td>
108	</tr>
109	<tr>
110	<td class="plugin-title column-primary">
111	<div class="wpvivid-storage-form">
112	<input type="text" autocomplete="off" option="ftp" name="path" placeholder="<?php esc_attr_e('Absolute path must exist(e.g. /home/username)', 'wpvivid-backuprestore'); ?>" class="regular-text"/>
113	</div>
114	</td>
115	<td class="column-description desc">
116	<div class="wpvivid-storage-form-desc">
117	<i><?php _e('Enter an absolute path and a custom subdirectory (optional) for holding the backups of current website. For example, /home/username/customfolder', 'wpvivid-backuprestore'); ?></i>
118	</div>
119	</td>
120	</tr>
121	<tr>
122	<td class="plugin-title column-primary">
123	<div class="wpvivid-storage-select">
124	<label>
125	<input type="checkbox" option="ftp" name="default" checked /><?php _e('Set as the default remote storage.', 'wpvivid-backuprestore'); ?>
126	</label>
127	</div>
128	</td>
129	<td class="column-description desc">
130	<div class="wpvivid-storage-form-desc">
131	<i><?php _e('Once checked, all this sites backups sent to a remote storage destination will be uploaded to this storage by default.', 'wpvivid-backuprestore'); ?></i>
132	</div>
133	</td>
134	</tr>
135	<tr>
136	<td class="plugin-title column-primary">
137	<div class="wpvivid-storage-select">
138	<label>
139	<input type="checkbox" option="ftp" name="passive" checked /><?php _e('Uncheck this to enable FTP active mode.', 'wpvivid-backuprestore'); ?>
140	</label>
141	</div>
142	</td>
143	<td class="column-description desc">
144	<div class="wpvivid-storage-form-desc">
145	<i><?php _e('Uncheck the option to use FTP active mode when transferring files. Make sure the FTP server you are configuring supports the active FTP mode.', 'wpvivid-backuprestore'); ?></i>
146	</div>
147	</td>
148	</tr>
149	</form>
150	<tr>
151	<td class="plugin-title column-primary">
152	<div class="wpvivid-storage-form">
153	<input class="button-primary" type="submit" option="add-remote" value="<?php esc_attr_e('Test and Add', 'wpvivid-backuprestore'); ?>">
154	</div>
155	</td>
156	<td class="column-description desc">
157	<div class="wpvivid-storage-form-desc">
158	<i><?php _e('Click the button to connect to FTP server and add it to the storage list below.', 'wpvivid-backuprestore'); ?></i>
159	</div>
160	</td>
161	</tr>
162	</tbody>
163	</table>
164	</div>
165	<?php
166	}
167
168	public function wpvivid_edit_storage_page_ftp()
169	{
170	?>
171	<div id="remote_storage_edit_ftp" class="postbox storage-account-block remote-storage-edit" style="display:none;">
172	<div style="padding: 0 10px 10px 0;"><strong><?php _e('Enter Your FTP Account', 'wpvivid-backuprestore'); ?></strong></div>
173	<table class="wp-list-table widefat plugins" style="width:100%;">
174	<tbody>
175	<form>
176	<tr>
177	<td class="plugin-title column-primary">
178	<div class="wpvivid-storage-form">
179	<input type="text" autocomplete="off" option="edit-ftp" name="name" placeholder="<?php esc_attr_e('Enter an unique alias: e.g. FTP-001', 'wpvivid-backuprestore'); ?>" class="regular-text" onkeyup="value=value.replace(/[^a-zA-Z0-9\-_]/g,'')" />
180	</div>
181	</td>
182	<td class="column-description desc">
183	<div class="wpvivid-storage-form-desc">
184	<i><?php _e('A name to help you identify the storage if you have multiple remote storage connected.', 'wpvivid-backuprestore'); ?></i>
185	</div>
186	</td>
187	</tr>
188	<tr>
189	<td class="plugin-title column-primary">
190	<div class="wpvivid-storage-form">
191	<input type="text" autocomplete="off" option="edit-ftp" name="server" placeholder="<?php esc_attr_e('FTP server (server\'s port 21)', 'wpvivid-backuprestore'); ?>" class="regular-text"/>
192	</div>
193	</td>
194	<td class="column-description desc">
195	<div class="wpvivid-storage-form-desc">
196	<i style="margin-right: 10px;"><?php _e('Enter the FTP server.', 'wpvivid-backuprestore'); ?></i>
197	</div>
198	</td>
199	</tr>
200	<tr>
201	<td class="plugin-title column-primary">
202	<div class="wpvivid-storage-form">
203	<input type="text" class="regular-text" autocomplete="off" option="edit-ftp" name="username" placeholder="<?php esc_attr_e('FTP login', 'wpvivid-backuprestore'); ?>" />
204	</div>
205	</td>
206	<td class="column-description desc">
207	<div class="wpvivid-storage-form-desc">
208	<i><?php _e('Enter your FTP server user name.', 'wpvivid-backuprestore'); ?></i>
209	</div>
210	</td>
211	</tr>
212	<tr>
213	<td class="plugin-title column-primary">
214	<div class="wpvivid-storage-form">
215	<input type="password" class="regular-text" autocomplete="new-password" option="edit-ftp" name="password" placeholder="<?php esc_attr_e('FTP password', 'wpvivid-backuprestore'); ?>" />
216	</div>
217	</td>
218	<td class="column-description desc">
219	<div class="wpvivid-storage-form-desc">
220	<i><?php _e('Enter the FTP server password.', 'wpvivid-backuprestore'); ?></i>
221	</div>
222	</td>
223	</tr>
224	<tr>
225	<td class="plugin-title column-primary">
226	<div class="wpvivid-storage-form">
227	<input type="text" autocomplete="off" option="edit-ftp" name="path" placeholder="<?php esc_attr_e('Absolute path must exist(e.g. /home/username)', 'wpvivid-backuprestore'); ?>" class="regular-text"/>
228	</div>
229	</td>
230	<td class="column-description desc">
231	<div class="wpvivid-storage-form-desc">
232	<i><?php _e('Enter an absolute path and a custom subdirectory (optional) for holding the backups of current website. For example, /home/username/customfolder', 'wpvivid-backuprestore'); ?></i>
233	</div>
234	</td>
235	</tr>
236	<tr>
237	<td class="plugin-title column-primary">
238	<div class="wpvivid-storage-select">
239	<label>
240	<input type="checkbox" option="edit-ftp" name="passive" checked /><?php _e('Uncheck this to enable FTP active mode.', 'wpvivid-backuprestore'); ?>
241	</label>
242	</div>
243	</td>
244	<td class="column-description desc">
245	<div class="wpvivid-storage-form-desc">
246	<i><?php _e('Uncheck the option to use FTP active mode when transferring files. Make sure the FTP server you are configuring supports the active FTP mode.', 'wpvivid-backuprestore'); ?></i>
247	</div>
248	</td>
249	</tr>
250	</form>
251	<tr>
252	<td class="plugin-title column-primary">
253	<div class="wpvivid-storage-form">
254	<input class="button-primary" type="submit" option="edit-remote" value="<?php esc_attr_e('Save Changes', 'wpvivid-backuprestore'); ?>">
255	</div>
256	</td>
257	<td class="column-description desc">
258	<div class="wpvivid-storage-form-desc">
259	<i><?php _e('Click the button to save the changes.', 'wpvivid-backuprestore'); ?></i>
260	</div>
261	</td>
262	</tr>
263	</tbody>
264	</table>
265	</div>
266	<?php
267	}
268
269	public function wpvivid_remote_pic_ftp($remote){
270	$remote['ftp']['default_pic'] = '/admin/partials/images/storage-ftp(gray).png';
271	$remote['ftp']['selected_pic'] = '/admin/partials/images/storage-ftp.png';
272	$remote['ftp']['title'] = 'FTP';
273	return $remote;
274	}
275
276	public function test_connect()
277	{
278	$passive =$this->options['passive'];
279	$host = $this->options['host'];
280	$username = $this->options['username'];
281	if(isset($this->options['is_encrypt']) && $this->options['is_encrypt'] == 1){
282	$password = base64_decode($this->options['password']);
283	}
284	else {
285	$password = $this->options['password'];
286	}
287	$path = $this->options['path'];
288	$port = empty($this->options['port'])?21:$this->options['port'];
289	$conn = $this -> do_connect($host,$username,$password,$port);
290	if(is_array($conn) && array_key_exists('result',$conn))
291	return $conn;
292	ftp_pasv($conn,$passive);
293	return $this->do_chdir($conn,$path);
294	}
295
296
297	public function sanitize_options($skip_name='')
298	{
299	$ret['result']=WPVIVID_FAILED;
300	if(!isset($this->options['name']))
301	{
302	$ret['error']=__('Warning: An alias for remote storage is required.','wpvivid-backuprestore');
303	return $ret;
304	}
305
306	$this->options['name']=sanitize_text_field($this->options['name']);
307
308	if(empty($this->options['name']))
309	{
310	$ret['error']=__('Warning: An alias for remote storage is required.','wpvivid-backuprestore');
311	return $ret;
312	}
313
314	$remoteslist=WPvivid_Setting::get_all_remote_options();
315	foreach ($remoteslist as $key=>$value)
316	{
317	if(isset($value['name'])&&$value['name'] == $this->options['name']&&$skip_name!=$value['name'])
318	{
319	$ret['error']="Warning: The alias already exists in storage list.";
320	return $ret;
321	}
322	}
323
324	$this->options['server']=sanitize_text_field($this->options['server']);
325
326	if(empty($this->options['server']))
327	{
328	$ret['error']="Warning: The FTP server is required.";
329	return $ret;
330	}
331	$res = explode(':',$this -> options['server']);
332	if(sizeof($res) > 1){
333	$this ->options['host'] = $res[0];
334	if($res[1] != 21){
335	$ret['error']='Currently, only port 21 is supported.';
336	return $ret;
337	}
338
339	}else{
340	$this -> options['host'] = $res[0];
341	}
342
343
344	if(!isset($this->options['username']))
345	{
346	$ret['error']="Warning: The FTP login is required.";
347	return $ret;
348	}
349
350	$this->options['username']=sanitize_text_field($this->options['username']);
351
352	if(empty($this->options['username']))
353	{
354	$ret['error']="Warning: The FTP login is required.";
355	return $ret;
356	}
357
358	if(!isset($this->options['password'])\|\|empty($this->options['password']))
359	{
360	$ret['error']="Warning: The FTP password is required.";
361	return $ret;
362	}
363
364	$this->options['password']=sanitize_text_field($this->options['password']);
365
366	if(empty($this->options['password']))
367	{
368	$ret['error']="Warning: The FTP password is required.";
369	return $ret;
370	}
371	$this->options['password'] = base64_encode($this->options['password']);
372	$this->options['is_encrypt'] = 1;
373
374	if(!isset($this->options['path'])\|\|empty($this->options['path']))
375	{
376	$ret['error']="Warning: The storage path is required.";
377	return $ret;
378	}
379
380	$this->options['path']=sanitize_text_field($this->options['path']);
381
382	if(empty($this->options['path']))
383	{
384	$ret['error']="Warning: The storage path is required.";
385	return $ret;
386	}
387
388	if($this->options['path']=='/')
389	{
390	$ret['error']="Warning: Root directory is forbidden to set to '/'.";
391	return $ret;
392	}
393
394	$ret['result']=WPVIVID_SUCCESS;
395	$ret['options']=$this->options;
396	return $ret;
397	}
398
399	public function do_connect($server,$username,$password,$port = 21)
400	{
401	$conn = ftp_connect( $server, $port, $this ->time_out );
402
403	if($conn)
404	{
405	if(ftp_login($conn,$username,$password))
406	{
407	return $conn;
408	}
409	else
410	{
411	return array('result'=>WPVIVID_FAILED,'error'=>'Login failed. You have entered the incorrect credential(s). Please try again.');
412	}
413	}
414	else{
415	return array('result'=>WPVIVID_FAILED,'error'=>'Login failed. The connection has timed out. Please try again later.');
416	}
417	}
418	public function do_chdir($conn,$path){
419	@ftp_chdir($conn,'/');
420	if(!@ftp_chdir($conn,$path))
421	{
422	$parts = explode('/',$path);
423	foreach($parts as $part){
424	if($part !== '') {
425	if (!@ftp_chdir($conn, $part)) {
426	if (!ftp_mkdir($conn, $part)) {
427	return array('result' => WPVIVID_FAILED, 'error' => 'Failed to create a backup. Make sure you have sufficient privileges to perform the operation.');
428	}
429
430	if (!@ftp_chdir($conn, $part)) {
431	return array('result' => WPVIVID_FAILED, 'error' => 'Failed to create a backup. Make sure you have sufficient privileges to perform the operation.');
432	}
433	}
434	}
435	}
436
437	/*if ( ! ftp_mkdir( $conn, $path ) )
438	{
439	return array('result'=>WPVIVID_FAILED,'error'=>'Failed to create a backup. Make sure you have sufficient privileges to perform the operation.');
440	}
441	if (!@ftp_chdir($conn,$path))
442	{
443	return array('result'=>WPVIVID_FAILED,'error'=>'Failed to create a backup. Make sure you have sufficient privileges to perform the operation.');
444	}*/
445	}
446	$temp_file = md5(rand());
447	$temp_path = trailingslashit(WP_CONTENT_DIR).WPvivid_Setting::get_backupdir().DIRECTORY_SEPARATOR.$temp_file;
448	file_put_contents($temp_path,print_r($temp_file,true));
449	if(! ftp_put($conn,trailingslashit($path).$temp_file,$temp_path,FTP_BINARY)){
450	return array('result'=>WPVIVID_FAILED,'error'=>'Failed to add FTP storage. It can be because the FTP folder permissions are insufficient, or calling PHP ftp_put function of your web server failed. Please make sure the folder has write permission and the ftp_put function works properly.');
451	}
452	@unlink($temp_path);
453	@ftp_delete($conn,trailingslashit($path).$temp_file);
454	return array('result'=>WPVIVID_SUCCESS);
455	}
456
457	public function upload($task_id,$files,$callback = '')
458	{
459	global $wpvivid_plugin;
460	$this -> callback = $callback;
461
462	$passive =$this->options['passive'];
463	$host = $this->options['host'];
464	$username = $this->options['username'];
465	if(isset($this->options['is_encrypt']) && $this->options['is_encrypt'] == 1){
466	$password = base64_decode($this->options['password']);
467	}
468	else {
469	$password = $this->options['password'];
470	}
471	$path = $this->options['path'];
472	$port = empty($this->options['port'])?21:$this->options['port'];
473
474	$upload_job=WPvivid_taskmanager::get_backup_sub_task_progress($task_id,'upload',WPVIVID_REMOTE_FTP);
475	if(empty($upload_job))
476	{
477	$job_data=array();
478	foreach ($files as $file)
479	{
480	if(!file_exists($file))
481	return array('result'=>WPVIVID_FAILED,'error'=>$file.' not found. The file might has been moved, renamed or deleted. Please back it up again.');
482	$file_data['size']=filesize($file);
483	$file_data['uploaded']=0;
484	$job_data[basename($file)]=$file_data;
485	}
486	WPvivid_taskmanager::update_backup_sub_task_progress($task_id,'upload',WPVIVID_REMOTE_FTP,WPVIVID_UPLOAD_UNDO,'Start uploading.',$job_data);
487	$upload_job=WPvivid_taskmanager::get_backup_sub_task_progress($task_id,'upload',WPVIVID_REMOTE_FTP);
488	}
489	$wpvivid_plugin->wpvivid_log->WriteLog('Connecting to server '.$host,'notice');
490	$conn = $this -> do_connect($host,$username,$password,$port);
491	if(is_array($conn) && array_key_exists('result',$conn))
492	return $conn;
493	ftp_pasv($conn,$passive);
494	$wpvivid_plugin->wpvivid_log->WriteLog('chdir '.$path,'notice');
495	$str = $this -> do_chdir($conn , $path);
496	if($str['result'] !== WPVIVID_SUCCESS)
497	return $str;
498
499	$flag = true;
500	$error = '';
501	foreach ($files as $key => $file)
502	{
503	if(is_array($upload_job['job_data']) && array_key_exists(basename($file),$upload_job['job_data']))
504	{
505	if($upload_job['job_data'][basename($file)]['uploaded']==1)
506	continue;
507	}
508	$this ->last_time = time();
509	$this -> last_size = 0;
510	$wpvivid_plugin->wpvivid_log->WriteLog('Start uploading '.basename($file),'notice');
511	$remote_file = trailingslashit($path).basename($file);
512	if(!file_exists($file))
513	return array('result'=>WPVIVID_FAILED,'error'=>$file.' not found. The file might has been moved, renamed or deleted. Please back it up again.');
514
515	$wpvivid_plugin->set_time_limit($task_id);
516
517	for($i =0;$i <WPVIVID_REMOTE_CONNECT_RETRY_TIMES;$i ++)
518	{
519	$this -> current_file_name = basename($file);
520	$this -> current_file_size = filesize($file);
521	$this -> last_time = time();
522	$this -> last_size = 0;
523	$local_handle = fopen($file,'rb');
524	if(!$local_handle)
525	{
526	return array('result'=>WPVIVID_FAILED,'error'=>'Failed to open '.$this->current_file_name.'.');
527	}
528	$status = ftp_nb_fput($conn,$remote_file,$local_handle,FTP_BINARY,0);
529	while ($status == FTP_MOREDATA)
530	{
531	$status = ftp_nb_continue($conn);
532	if((time() - $this -> last_time) >3)
533	{
534	if(is_callable($callback)){
535	call_user_func_array($callback,array(ftell($local_handle),$this -> current_file_name,
536	$this->current_file_size,$this -> last_time,$this -> last_size));
537	}
538	$this -> last_size = ftell($local_handle);
539	$this -> last_time = time();
540	}
541	}
542	if ($status != FTP_FINISHED)
543	{
544	return array('result'=>WPVIVID_FAILED,'error'=>'Uploading '.$remote_file.' to FTP server failed. '.$remote_file.' might be deleted or network doesn\'t work properly. Please verify the file and confirm the network connection and try again later.');
545	}
546
547	if($status == FTP_FINISHED)
548	{
549	$wpvivid_plugin->wpvivid_log->WriteLog('Finished uploading '.basename($file),'notice');
550	$upload_job['job_data'][basename($file)]['uploaded']=1;
551	WPvivid_taskmanager::update_backup_sub_task_progress($task_id,'upload',WPVIVID_REMOTE_FTP,WPVIVID_UPLOAD_SUCCESS,'Uploading '.basename($file).' completed.',$upload_job['job_data']);
552	break;
553	}
554
555	if($status != FTP_FINISHED && $i == (WPVIVID_REMOTE_CONNECT_RETRY_TIMES - 1))
556	{
557	$flag = false;
558	$error = 'Uploading '.basename($file).' to FTP server failed. '.basename($file).' might be deleted or network doesn\'t work properly. Please verify the file and confirm the network connection and try again later.';
559	break 2;
560	}
561	sleep(WPVIVID_REMOTE_CONNECT_RETRY_INTERVAL);
562	}
563	}
564
565	if($flag){
566	return array('result'=>WPVIVID_SUCCESS);
567	}else{
568	return array('result'=>WPVIVID_FAILED,'error'=>$error);
569	}
570	}
571
572	public function download($file,$local_path,$callback = '')
573	{
574	try {
575	global $wpvivid_plugin;
576	$passive = $this->options['passive'];
577	$host = $this->options['host'];
578	$username = $this->options['username'];
579	if(isset($this->options['is_encrypt']) && $this->options['is_encrypt'] == 1){
580	$password = base64_decode($this->options['password']);
581	}
582	else {
583	$password = $this->options['password'];
584	}
585	$path = $this->options['path'];
586	$port = empty($this->options['port']) ? 21 : $this->options['port'];
587
588	$local_path = trailingslashit($local_path) . $file['file_name'];
589	$remote_file = trailingslashit($path) . $file['file_name'];
590
591	$this->current_file_name = $file['file_name'];
592	$this->current_file_size = $file['size'];
593
594	$wpvivid_plugin->wpvivid_download_log->WriteLog('Connecting FTP server.','notice');
595	$conn = $this->do_connect($host, $username, $password, $port);
596	if (is_array($conn) && array_key_exists('result', $conn)) {
597	return $conn;
598	}
599
600	ftp_pasv($conn, $passive);
601	$wpvivid_plugin->wpvivid_download_log->WriteLog('Create local file.','notice');
602	$local_handle = fopen($local_path, 'ab');
603	if (!$local_handle) {
604	return array('result' => WPVIVID_FAILED, 'error' => 'Unable to create the local file. Please make sure the folder is writable and try again.');
605	}
606
607	$stat = fstat($local_handle);
608	$offset = $stat['size'];
609	$wpvivid_plugin->wpvivid_download_log->WriteLog('Downloading file ' . $file['file_name'] . ', Size: ' . $file['size'] ,'notice');
610	$status = ftp_nb_fget($conn, $local_handle, $remote_file, FTP_BINARY, $offset);
611	while ($status == FTP_MOREDATA) {
612	$status = ftp_nb_continue($conn);
613	if ((time() - $this->last_time) > 3) {
614	if (is_callable($callback)) {
615	call_user_func_array($callback, array(ftell($local_handle), $this->current_file_name,
616	$this->current_file_size, $this->last_time, $this->last_size));
617	}
618	$this->last_size = ftell($local_handle);
619	$this->last_time = time();
620	}
621	}
622
623	if(filesize($local_path) == $file['size']){
624	if($wpvivid_plugin->wpvivid_check_zip_valid()) {
625	$res = TRUE;
626	}
627	else{
628	$res = FALSE;
629	}
630	}
631	else{
632	$res = FALSE;
633	}
634
635	if ($status != FTP_FINISHED \|\| $res !== TRUE) {
636	@unlink($local_path);
637	return array('result' => WPVIVID_FAILED, 'error' => 'Downloading ' . $remote_file . ' failed. ' . $remote_file . ' might be deleted or network doesn\'t work properly. Please verify the file and confirm the network connection and try again later.');
638	}
639
640	ftp_close($conn);
641	fclose($local_handle);
642	return array('result' => WPVIVID_SUCCESS);
643	}
644	catch (Exception $error){
645	$message = 'An exception has occurred. class: '.get_class($error).';msg: '.$error->getMessage().';code: '.$error->getCode().';line: '.$error->getLine().';in_file: '.$error->getFile().';';
646	error_log($message);
647	return array('result'=>WPVIVID_FAILED, 'error'=>$message);
648	}
649	}
650
651	public function cleanup($file){
652	$host = $this->options['host'];
653	$username = $this->options['username'];
654	if(isset($this->options['is_encrypt']) && $this->options['is_encrypt'] == 1){
655	$password = base64_decode($this->options['password']);
656	}
657	else {
658	$password = $this->options['password'];
659	}
660	$path = $this->options['path'];
661	$port = empty($this->options['port'])?21:$this->options['port'];
662
663	$conn = $this -> do_connect($host,$username,$password,$port);
664	if(is_array($conn) && array_key_exists('result',$conn))
665	return $conn;
666
667	foreach ($file as $value){
668	@ftp_delete($conn,trailingslashit($path).$value);
669	}
670	return array('result'=>WPVIVID_SUCCESS);
671	}
672
673	public function init_remotes($remote_collection){
674	$remote_collection[WPVIVID_REMOTE_FTP] = 'WPvivid_FTPClass';
675	return $remote_collection;
676	}
677
678	public function wpvivid_get_out_of_date_ftp($out_of_date_remote, $remote)
679	{
680	if($remote['type'] == WPVIVID_REMOTE_FTP){
681	$out_of_date_remote = $remote['path'];
682	}
683	return $out_of_date_remote;
684	}
685
686	public function wpvivid_storage_provider_ftp($storage_type)
687	{
688	if($storage_type == WPVIVID_REMOTE_FTP){
689	$storage_type = 'FTP';
690	}
691	return $storage_type;
692	}
693	}