WordPress 4.7
[autoinstalls/wordpress.git] / wp-admin / includes / class-ftp-pure.php
1 <?php
2 /**
3  * PemFTP - A Ftp implementation in pure PHP
4  *
5  * @package PemFTP
6  * @since 2.5.0
7  *
8  * @version 1.0
9  * @copyright Alexey Dotsenko
10  * @author Alexey Dotsenko
11  * @link http://www.phpclasses.org/browse/package/1743.html Site
12  * @license LGPL http://www.opensource.org/licenses/lgpl-license.html
13  */
14
15 /**
16  * FTP implementation using fsockopen to connect.
17  *
18  * @package PemFTP
19  * @subpackage Pure
20  * @since 2.5.0
21  *
22  * @version 1.0
23  * @copyright Alexey Dotsenko
24  * @author Alexey Dotsenko
25  * @link http://www.phpclasses.org/browse/package/1743.html Site
26  * @license LGPL http://www.opensource.org/licenses/lgpl-license.html
27  */
28 class ftp_pure extends ftp_base {
29
30         function __construct($verb=FALSE, $le=FALSE) {
31                 parent::__construct(false, $verb, $le);
32         }
33
34 // <!-- --------------------------------------------------------------------------------------- -->
35 // <!--       Private functions                                                                 -->
36 // <!-- --------------------------------------------------------------------------------------- -->
37
38         function _settimeout($sock) {
39                 if(!@stream_set_timeout($sock, $this->_timeout)) {
40                         $this->PushError('_settimeout','socket set send timeout');
41                         $this->_quit();
42                         return FALSE;
43                 }
44                 return TRUE;
45         }
46
47         function _connect($host, $port) {
48                 $this->SendMSG("Creating socket");
49                 $sock = @fsockopen($host, $port, $errno, $errstr, $this->_timeout);
50                 if (!$sock) {
51                         $this->PushError('_connect','socket connect failed', $errstr." (".$errno.")");
52                         return FALSE;
53                 }
54                 $this->_connected=true;
55                 return $sock;
56         }
57
58         function _readmsg($fnction="_readmsg"){
59                 if(!$this->_connected) {
60                         $this->PushError($fnction, 'Connect first');
61                         return FALSE;
62                 }
63                 $result=true;
64                 $this->_message="";
65                 $this->_code=0;
66                 $go=true;
67                 do {
68                         $tmp=@fgets($this->_ftp_control_sock, 512);
69                         if($tmp===false) {
70                                 $go=$result=false;
71                                 $this->PushError($fnction,'Read failed');
72                         } else {
73                                 $this->_message.=$tmp;
74                                 if(preg_match("/^([0-9]{3})(-(.*[".CRLF."]{1,2})+\\1)? [^".CRLF."]+[".CRLF."]{1,2}$/", $this->_message, $regs)) $go=false;
75                         }
76                 } while($go);
77                 if($this->LocalEcho) echo "GET < ".rtrim($this->_message, CRLF).CRLF;
78                 $this->_code=(int)$regs[1];
79                 return $result;
80         }
81
82         function _exec($cmd, $fnction="_exec") {
83                 if(!$this->_ready) {
84                         $this->PushError($fnction,'Connect first');
85                         return FALSE;
86                 }
87                 if($this->LocalEcho) echo "PUT > ",$cmd,CRLF;
88                 $status=@fputs($this->_ftp_control_sock, $cmd.CRLF);
89                 if($status===false) {
90                         $this->PushError($fnction,'socket write failed');
91                         return FALSE;
92                 }
93                 $this->_lastaction=time();
94                 if(!$this->_readmsg($fnction)) return FALSE;
95                 return TRUE;
96         }
97
98         function _data_prepare($mode=FTP_ASCII) {
99                 if(!$this->_settype($mode)) return FALSE;
100                 if($this->_passive) {
101                         if(!$this->_exec("PASV", "pasv")) {
102                                 $this->_data_close();
103                                 return FALSE;
104                         }
105                         if(!$this->_checkCode()) {
106                                 $this->_data_close();
107                                 return FALSE;
108                         }
109                         $ip_port = explode(",", preg_replace("/^.+ \\(?([0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]+,[0-9]+)\\)?.*$/s", "\\1", $this->_message));
110                         $this->_datahost=$ip_port[0].".".$ip_port[1].".".$ip_port[2].".".$ip_port[3];
111             $this->_dataport=(((int)$ip_port[4])<<8) + ((int)$ip_port[5]);
112                         $this->SendMSG("Connecting to ".$this->_datahost.":".$this->_dataport);
113                         $this->_ftp_data_sock=@fsockopen($this->_datahost, $this->_dataport, $errno, $errstr, $this->_timeout);
114                         if(!$this->_ftp_data_sock) {
115                                 $this->PushError("_data_prepare","fsockopen fails", $errstr." (".$errno.")");
116                                 $this->_data_close();
117                                 return FALSE;
118                         }
119                         else $this->_ftp_data_sock;
120                 } else {
121                         $this->SendMSG("Only passive connections available!");
122                         return FALSE;
123                 }
124                 return TRUE;
125         }
126
127         function _data_read($mode=FTP_ASCII, $fp=NULL) {
128                 if(is_resource($fp)) $out=0;
129                 else $out="";
130                 if(!$this->_passive) {
131                         $this->SendMSG("Only passive connections available!");
132                         return FALSE;
133                 }
134                 while (!feof($this->_ftp_data_sock)) {
135                         $block=fread($this->_ftp_data_sock, $this->_ftp_buff_size);
136                         if($mode!=FTP_BINARY) $block=preg_replace("/\r\n|\r|\n/", $this->_eol_code[$this->OS_local], $block);
137                         if(is_resource($fp)) $out+=fwrite($fp, $block, strlen($block));
138                         else $out.=$block;
139                 }
140                 return $out;
141         }
142
143         function _data_write($mode=FTP_ASCII, $fp=NULL) {
144                 if(is_resource($fp)) $out=0;
145                 else $out="";
146                 if(!$this->_passive) {
147                         $this->SendMSG("Only passive connections available!");
148                         return FALSE;
149                 }
150                 if(is_resource($fp)) {
151                         while(!feof($fp)) {
152                                 $block=fread($fp, $this->_ftp_buff_size);
153                                 if(!$this->_data_write_block($mode, $block)) return false;
154                         }
155                 } elseif(!$this->_data_write_block($mode, $fp)) return false;
156                 return TRUE;
157         }
158
159         function _data_write_block($mode, $block) {
160                 if($mode!=FTP_BINARY) $block=preg_replace("/\r\n|\r|\n/", $this->_eol_code[$this->OS_remote], $block);
161                 do {
162                         if(($t=@fwrite($this->_ftp_data_sock, $block))===FALSE) {
163                                 $this->PushError("_data_write","Can't write to socket");
164                                 return FALSE;
165                         }
166                         $block=substr($block, $t);
167                 } while(!empty($block));
168                 return true;
169         }
170
171         function _data_close() {
172                 @fclose($this->_ftp_data_sock);
173                 $this->SendMSG("Disconnected data from remote host");
174                 return TRUE;
175         }
176
177         function _quit($force=FALSE) {
178                 if($this->_connected or $force) {
179                         @fclose($this->_ftp_control_sock);
180                         $this->_connected=false;
181                         $this->SendMSG("Socket closed");
182                 }
183         }
184 }
185
186 ?>