WordPress 4.7
[autoinstalls/wordpress.git] / wp-admin / includes / class-ftp-sockets.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  * Socket Based FTP implementation
17  *
18  * @package PemFTP
19  * @subpackage Socket
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_sockets extends ftp_base {
29
30         function __construct($verb=FALSE, $le=FALSE) {
31                 parent::__construct(true, $verb, $le);
32         }
33
34 // <!-- --------------------------------------------------------------------------------------- -->
35 // <!--       Private functions                                                                 -->
36 // <!-- --------------------------------------------------------------------------------------- -->
37
38         function _settimeout($sock) {
39                 if(!@socket_set_option($sock, SOL_SOCKET, SO_RCVTIMEO, array("sec"=>$this->_timeout, "usec"=>0))) {
40                         $this->PushError('_connect','socket set receive timeout',socket_strerror(socket_last_error($sock)));
41                         @socket_close($sock);
42                         return FALSE;
43                 }
44                 if(!@socket_set_option($sock, SOL_SOCKET , SO_SNDTIMEO, array("sec"=>$this->_timeout, "usec"=>0))) {
45                         $this->PushError('_connect','socket set send timeout',socket_strerror(socket_last_error($sock)));
46                         @socket_close($sock);
47                         return FALSE;
48                 }
49                 return true;
50         }
51
52         function _connect($host, $port) {
53                 $this->SendMSG("Creating socket");
54                 if(!($sock = @socket_create(AF_INET, SOCK_STREAM, SOL_TCP))) {
55                         $this->PushError('_connect','socket create failed',socket_strerror(socket_last_error($sock)));
56                         return FALSE;
57                 }
58                 if(!$this->_settimeout($sock)) return FALSE;
59                 $this->SendMSG("Connecting to \"".$host.":".$port."\"");
60                 if (!($res = @socket_connect($sock, $host, $port))) {
61                         $this->PushError('_connect','socket connect failed',socket_strerror(socket_last_error($sock)));
62                         @socket_close($sock);
63                         return FALSE;
64                 }
65                 $this->_connected=true;
66                 return $sock;
67         }
68
69         function _readmsg($fnction="_readmsg"){
70                 if(!$this->_connected) {
71                         $this->PushError($fnction,'Connect first');
72                         return FALSE;
73                 }
74                 $result=true;
75                 $this->_message="";
76                 $this->_code=0;
77                 $go=true;
78                 do {
79                         $tmp=@socket_read($this->_ftp_control_sock, 4096, PHP_BINARY_READ);
80                         if($tmp===false) {
81                                 $go=$result=false;
82                                 $this->PushError($fnction,'Read failed', socket_strerror(socket_last_error($this->_ftp_control_sock)));
83                         } else {
84                                 $this->_message.=$tmp;
85                                 $go = !preg_match("/^([0-9]{3})(-.+\\1)? [^".CRLF."]+".CRLF."$/Us", $this->_message, $regs);
86                         }
87                 } while($go);
88                 if($this->LocalEcho) echo "GET < ".rtrim($this->_message, CRLF).CRLF;
89                 $this->_code=(int)$regs[1];
90                 return $result;
91         }
92
93         function _exec($cmd, $fnction="_exec") {
94                 if(!$this->_ready) {
95                         $this->PushError($fnction,'Connect first');
96                         return FALSE;
97                 }
98                 if($this->LocalEcho) echo "PUT > ",$cmd,CRLF;
99                 $status=@socket_write($this->_ftp_control_sock, $cmd.CRLF);
100                 if($status===false) {
101                         $this->PushError($fnction,'socket write failed', socket_strerror(socket_last_error($this->stream)));
102                         return FALSE;
103                 }
104                 $this->_lastaction=time();
105                 if(!$this->_readmsg($fnction)) return FALSE;
106                 return TRUE;
107         }
108
109         function _data_prepare($mode=FTP_ASCII) {
110                 if(!$this->_settype($mode)) return FALSE;
111                 $this->SendMSG("Creating data socket");
112                 $this->_ftp_data_sock = @socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
113                 if ($this->_ftp_data_sock < 0) {
114                         $this->PushError('_data_prepare','socket create failed',socket_strerror(socket_last_error($this->_ftp_data_sock)));
115                         return FALSE;
116                 }
117                 if(!$this->_settimeout($this->_ftp_data_sock)) {
118                         $this->_data_close();
119                         return FALSE;
120                 }
121                 if($this->_passive) {
122                         if(!$this->_exec("PASV", "pasv")) {
123                                 $this->_data_close();
124                                 return FALSE;
125                         }
126                         if(!$this->_checkCode()) {
127                                 $this->_data_close();
128                                 return FALSE;
129                         }
130                         $ip_port = explode(",", preg_replace("/^.+ \\(?([0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]+,[0-9]+)\\)?.*$/s", "\\1", $this->_message));
131                         $this->_datahost=$ip_port[0].".".$ip_port[1].".".$ip_port[2].".".$ip_port[3];
132                         $this->_dataport=(((int)$ip_port[4])<<8) + ((int)$ip_port[5]);
133                         $this->SendMSG("Connecting to ".$this->_datahost.":".$this->_dataport);
134                         if(!@socket_connect($this->_ftp_data_sock, $this->_datahost, $this->_dataport)) {
135                                 $this->PushError("_data_prepare","socket_connect", socket_strerror(socket_last_error($this->_ftp_data_sock)));
136                                 $this->_data_close();
137                                 return FALSE;
138                         }
139                         else $this->_ftp_temp_sock=$this->_ftp_data_sock;
140                 } else {
141                         if(!@socket_getsockname($this->_ftp_control_sock, $addr, $port)) {
142                                 $this->PushError("_data_prepare","can't get control socket information", socket_strerror(socket_last_error($this->_ftp_control_sock)));
143                                 $this->_data_close();
144                                 return FALSE;
145                         }
146                         if(!@socket_bind($this->_ftp_data_sock,$addr)){
147                                 $this->PushError("_data_prepare","can't bind data socket", socket_strerror(socket_last_error($this->_ftp_data_sock)));
148                                 $this->_data_close();
149                                 return FALSE;
150                         }
151                         if(!@socket_listen($this->_ftp_data_sock)) {
152                                 $this->PushError("_data_prepare","can't listen data socket", socket_strerror(socket_last_error($this->_ftp_data_sock)));
153                                 $this->_data_close();
154                                 return FALSE;
155                         }
156                         if(!@socket_getsockname($this->_ftp_data_sock, $this->_datahost, $this->_dataport)) {
157                                 $this->PushError("_data_prepare","can't get data socket information", socket_strerror(socket_last_error($this->_ftp_data_sock)));
158                                 $this->_data_close();
159                                 return FALSE;
160                         }
161                         if(!$this->_exec('PORT '.str_replace('.',',',$this->_datahost.'.'.($this->_dataport>>8).'.'.($this->_dataport&0x00FF)), "_port")) {
162                                 $this->_data_close();
163                                 return FALSE;
164                         }
165                         if(!$this->_checkCode()) {
166                                 $this->_data_close();
167                                 return FALSE;
168                         }
169                 }
170                 return TRUE;
171         }
172
173         function _data_read($mode=FTP_ASCII, $fp=NULL) {
174                 $NewLine=$this->_eol_code[$this->OS_local];
175                 if(is_resource($fp)) $out=0;
176                 else $out="";
177                 if(!$this->_passive) {
178                         $this->SendMSG("Connecting to ".$this->_datahost.":".$this->_dataport);
179                         $this->_ftp_temp_sock=socket_accept($this->_ftp_data_sock);
180                         if($this->_ftp_temp_sock===FALSE) {
181                                 $this->PushError("_data_read","socket_accept", socket_strerror(socket_last_error($this->_ftp_temp_sock)));
182                                 $this->_data_close();
183                                 return FALSE;
184                         }
185                 }
186
187                 while(($block=@socket_read($this->_ftp_temp_sock, $this->_ftp_buff_size, PHP_BINARY_READ))!==false) {
188                         if($block==="") break;
189                         if($mode!=FTP_BINARY) $block=preg_replace("/\r\n|\r|\n/", $this->_eol_code[$this->OS_local], $block);
190                         if(is_resource($fp)) $out+=fwrite($fp, $block, strlen($block));
191                         else $out.=$block;
192                 }
193                 return $out;
194         }
195
196         function _data_write($mode=FTP_ASCII, $fp=NULL) {
197                 $NewLine=$this->_eol_code[$this->OS_local];
198                 if(is_resource($fp)) $out=0;
199                 else $out="";
200                 if(!$this->_passive) {
201                         $this->SendMSG("Connecting to ".$this->_datahost.":".$this->_dataport);
202                         $this->_ftp_temp_sock=socket_accept($this->_ftp_data_sock);
203                         if($this->_ftp_temp_sock===FALSE) {
204                                 $this->PushError("_data_write","socket_accept", socket_strerror(socket_last_error($this->_ftp_temp_sock)));
205                                 $this->_data_close();
206                                 return false;
207                         }
208                 }
209                 if(is_resource($fp)) {
210                         while(!feof($fp)) {
211                                 $block=fread($fp, $this->_ftp_buff_size);
212                                 if(!$this->_data_write_block($mode, $block)) return false;
213                         }
214                 } elseif(!$this->_data_write_block($mode, $fp)) return false;
215                 return true;
216         }
217
218         function _data_write_block($mode, $block) {
219                 if($mode!=FTP_BINARY) $block=preg_replace("/\r\n|\r|\n/", $this->_eol_code[$this->OS_remote], $block);
220                 do {
221                         if(($t=@socket_write($this->_ftp_temp_sock, $block))===FALSE) {
222                                 $this->PushError("_data_write","socket_write", socket_strerror(socket_last_error($this->_ftp_temp_sock)));
223                                 $this->_data_close();
224                                 return FALSE;
225                         }
226                         $block=substr($block, $t);
227                 } while(!empty($block));
228                 return true;
229         }
230
231         function _data_close() {
232                 @socket_close($this->_ftp_temp_sock);
233                 @socket_close($this->_ftp_data_sock);
234                 $this->SendMSG("Disconnected data from remote host");
235                 return TRUE;
236         }
237
238         function _quit() {
239                 if($this->_connected) {
240                         @socket_close($this->_ftp_control_sock);
241                         $this->_connected=false;
242                         $this->SendMSG("Socket closed");
243                 }
244         }
245 }
246 ?>