100) { break; } $hkey = ; $hvalue = ; $v = 0; for($i=0; $i { if($v==1) { $hvalue .= $line[$i]; } if($line[$i]==:) { $v = 1; } if($v==0) { $hkey .= $line[$i]; } } $hkey = trim($hkey); if($hkey!=) { $m_httphead[strtolower($hkey)] = trim($hvalue); } } //分析返回记录 if(preg_match(/^3/, $m_httphead[http-state])) { if(isset($m_httphead[location]) && $jumpcount { $jumpcount++; downimagekeep($gurl,$rfurl,$filename,$gcookie,$jumpcount); } else { return false; } } if(!preg_match(/^2/, $m_httphead[http-state])) { return false; } if(!isset($m_httphead)) { return false; } $contentlength = $m_httphead['content-length']; //保存文件 $fp = fopen($filename,w) or die(写入文件：{$filename} 失败！); $i=0; $okdata = ; $starttime = time(); while(!feof($m_fp)) { $okdata .= fgetc($m_fp); $i++; //超时结束 if(time()-$starttime>$maxtime) { break; } //到达指定大小结束 if($i >= $contentlength) { break; } } if($okdata!=) { fwrite($fp,$okdata); } fclose($fp); if($okdata==) { @unlink($filename); fclose($m_fp); return false; } fclose($m_fp); return true; } /** * 获得某页面返回的cookie信息 * * @access public * @param string $gurl 调整地址 * @return string */ function refurlcookie($gurl) { global $gcookie,$lastrfurl; $gurl = trim($gurl); if(!empty($gcookie) && $lastrfurl==$gurl) { return $gcookie; } else { $lastrfurl=$gurl; } if(trim($gurl)=='') { return ''; } $urlinfos = gethostinfo($gurl); $ghost = $urlinfos['host']; $gquery = $urlinfos['query']; $sessionquery = get $gquery http/1.1\r\n; $sessionquery .= host: $ghost\r\n; $sessionquery .= accept: */*\r\n; $sessionquery .= user-agent: mozilla/4.0 (compatible; msie 5.00; windows 98)\r\n; $sessionquery .= connection: close\r\n\r\n; $errno = ; $errstr = ; $m_fp = fsockopen($ghost, 80, $errno, $errstr,10) or die($ghost.'
'); fwrite($m_fp,$sessionquery); $lnum = 0; //获取详细应答头 $gcookie = ; while(!feof($m_fp)) { $line = trim(fgets($m_fp,256)); if($line == || $lnum>100) { break; } else { if(preg_match(/^cookie/i, $line)) { $gcookie = $line; break; } } } fclose($m_fp); return $gcookie; } /** * 获得网址的host和query部份 * * @access public * @param string $gurl 调整地址 * @return string */ function gethostinfo($gurl) { $gurl = preg_replace(/^http:\/\//i, , trim($gurl)); $garr['host'] = preg_replace(/\/(.*)$/i, , $gurl); $garr['query'] = /.preg_replace(/^([^\/]*)\//i, , $gurl); return $garr; } ?>
复制代码