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 | ?>
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