class-ftp-sockets.php (8475B)
1 <?php 2 /** 3 * PemFTP - An 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 https://www.phpclasses.org/package/1743-PHP-FTP-client-in-pure-PHP.html 12 * @license LGPL https://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 https://www.phpclasses.org/package/1743-PHP-FTP-client-in-pure-PHP.html 26 * @license LGPL https://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 ?>