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1 <?php |
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2 /** |
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3 * PemFTP - A Ftp implementation in pure PHP |
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4 * |
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5 * @package PemFTP |
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6 * @since 2.5 |
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7 * |
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8 * @version 1.0 |
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9 * @copyright Alexey Dotsenko |
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10 * @author Alexey Dotsenko |
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11 * @link http://www.phpclasses.org/browse/package/1743.html Site |
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12 * @license LGPL License http://www.opensource.org/licenses/lgpl-license.html |
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13 */ |
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14 |
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15 /** |
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16 * FTP implementation using fsockopen to connect. |
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17 * |
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18 * @package PemFTP |
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19 * @subpackage Pure |
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20 * @since 2.5 |
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21 * |
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22 * @version 1.0 |
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23 * @copyright Alexey Dotsenko |
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24 * @author Alexey Dotsenko |
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25 * @link http://www.phpclasses.org/browse/package/1743.html Site |
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26 * @license LGPL License http://www.opensource.org/licenses/lgpl-license.html |
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27 */ |
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28 class ftp extends ftp_base { |
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29 |
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30 function ftp($verb=FALSE, $le=FALSE) { |
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31 $this->__construct($verb, $le); |
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32 } |
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33 |
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34 function __construct($verb=FALSE, $le=FALSE) { |
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35 parent::__construct(false, $verb, $le); |
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36 } |
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37 |
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38 // <!-- --------------------------------------------------------------------------------------- --> |
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39 // <!-- Private functions --> |
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40 // <!-- --------------------------------------------------------------------------------------- --> |
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41 |
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42 function _settimeout($sock) { |
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43 if(!@stream_set_timeout($sock, $this->_timeout)) { |
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44 $this->PushError('_settimeout','socket set send timeout'); |
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45 $this->_quit(); |
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46 return FALSE; |
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47 } |
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48 return TRUE; |
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49 } |
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50 |
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51 function _connect($host, $port) { |
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52 $this->SendMSG("Creating socket"); |
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53 $sock = @fsockopen($host, $port, $errno, $errstr, $this->_timeout); |
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54 if (!$sock) { |
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55 $this->PushError('_connect','socket connect failed', $errstr." (".$errno.")"); |
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56 return FALSE; |
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57 } |
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58 $this->_connected=true; |
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59 return $sock; |
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60 } |
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61 |
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62 function _readmsg($fnction="_readmsg"){ |
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63 if(!$this->_connected) { |
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64 $this->PushError($fnction, 'Connect first'); |
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65 return FALSE; |
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66 } |
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67 $result=true; |
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68 $this->_message=""; |
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69 $this->_code=0; |
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70 $go=true; |
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71 do { |
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72 $tmp=@fgets($this->_ftp_control_sock, 512); |
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73 if($tmp===false) { |
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74 $go=$result=false; |
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75 $this->PushError($fnction,'Read failed'); |
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76 } else { |
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77 $this->_message.=$tmp; |
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78 if(preg_match("/^([0-9]{3})(-(.*[".CRLF."]{1,2})+\\1)? [^".CRLF."]+[".CRLF."]{1,2}$/", $this->_message, $regs)) $go=false; |
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79 } |
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80 } while($go); |
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81 if($this->LocalEcho) echo "GET < ".rtrim($this->_message, CRLF).CRLF; |
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82 $this->_code=(int)$regs[1]; |
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83 return $result; |
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84 } |
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85 |
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86 function _exec($cmd, $fnction="_exec") { |
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87 if(!$this->_ready) { |
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88 $this->PushError($fnction,'Connect first'); |
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89 return FALSE; |
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90 } |
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91 if($this->LocalEcho) echo "PUT > ",$cmd,CRLF; |
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92 $status=@fputs($this->_ftp_control_sock, $cmd.CRLF); |
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93 if($status===false) { |
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94 $this->PushError($fnction,'socket write failed'); |
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95 return FALSE; |
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96 } |
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97 $this->_lastaction=time(); |
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98 if(!$this->_readmsg($fnction)) return FALSE; |
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99 return TRUE; |
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100 } |
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101 |
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102 function _data_prepare($mode=FTP_ASCII) { |
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103 if(!$this->_settype($mode)) return FALSE; |
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104 if($this->_passive) { |
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105 if(!$this->_exec("PASV", "pasv")) { |
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106 $this->_data_close(); |
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107 return FALSE; |
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108 } |
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109 if(!$this->_checkCode()) { |
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110 $this->_data_close(); |
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111 return FALSE; |
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112 } |
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113 $ip_port = explode(",", ereg_replace("^.+ \\(?([0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]+,[0-9]+)\\)?.*".CRLF."$", "\\1", $this->_message)); |
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114 $this->_datahost=$ip_port[0].".".$ip_port[1].".".$ip_port[2].".".$ip_port[3]; |
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115 $this->_dataport=(((int)$ip_port[4])<<8) + ((int)$ip_port[5]); |
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116 $this->SendMSG("Connecting to ".$this->_datahost.":".$this->_dataport); |
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117 $this->_ftp_data_sock=@fsockopen($this->_datahost, $this->_dataport, $errno, $errstr, $this->_timeout); |
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118 if(!$this->_ftp_data_sock) { |
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119 $this->PushError("_data_prepare","fsockopen fails", $errstr." (".$errno.")"); |
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120 $this->_data_close(); |
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121 return FALSE; |
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122 } |
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123 else $this->_ftp_data_sock; |
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124 } else { |
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125 $this->SendMSG("Only passive connections available!"); |
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126 return FALSE; |
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127 } |
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128 return TRUE; |
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129 } |
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130 |
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131 function _data_read($mode=FTP_ASCII, $fp=NULL) { |
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132 if(is_resource($fp)) $out=0; |
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133 else $out=""; |
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134 if(!$this->_passive) { |
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135 $this->SendMSG("Only passive connections available!"); |
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136 return FALSE; |
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137 } |
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138 while (!feof($this->_ftp_data_sock)) { |
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139 $block=fread($this->_ftp_data_sock, $this->_ftp_buff_size); |
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140 if($mode!=FTP_BINARY) $block=preg_replace("/\r\n|\r|\n/", $this->_eol_code[$this->OS_local], $block); |
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141 if(is_resource($fp)) $out+=fwrite($fp, $block, strlen($block)); |
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142 else $out.=$block; |
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143 } |
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144 return $out; |
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145 } |
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146 |
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147 function _data_write($mode=FTP_ASCII, $fp=NULL) { |
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148 if(is_resource($fp)) $out=0; |
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149 else $out=""; |
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150 if(!$this->_passive) { |
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151 $this->SendMSG("Only passive connections available!"); |
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152 return FALSE; |
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153 } |
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154 if(is_resource($fp)) { |
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155 while(!feof($fp)) { |
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156 $block=fread($fp, $this->_ftp_buff_size); |
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157 if(!$this->_data_write_block($mode, $block)) return false; |
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158 } |
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159 } elseif(!$this->_data_write_block($mode, $fp)) return false; |
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160 return TRUE; |
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161 } |
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162 |
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163 function _data_write_block($mode, $block) { |
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164 if($mode!=FTP_BINARY) $block=preg_replace("/\r\n|\r|\n/", $this->_eol_code[$this->OS_remote], $block); |
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165 do { |
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166 if(($t=@fwrite($this->_ftp_data_sock, $block))===FALSE) { |
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167 $this->PushError("_data_write","Can't write to socket"); |
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168 return FALSE; |
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169 } |
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170 $block=substr($block, $t); |
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171 } while(!empty($block)); |
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172 return true; |
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173 } |
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174 |
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175 function _data_close() { |
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176 @fclose($this->_ftp_data_sock); |
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177 $this->SendMSG("Disconnected data from remote host"); |
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178 return TRUE; |
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179 } |
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180 |
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181 function _quit($force=FALSE) { |
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182 if($this->_connected or $force) { |
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183 @fclose($this->_ftp_control_sock); |
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184 $this->_connected=false; |
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185 $this->SendMSG("Socket closed"); |
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186 } |
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187 } |
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188 } |
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189 |
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190 ?> |