lib/fileio/fileio.satellite.php

   1 <?php\r
   2 /**\r
   3  * FileIO Satellite 衛星計畫後端\r
   4  *\r
   5  * 搭配 satellite.php/pl 利用遠端空間管理圖檔\r
   6  *\r
   7  * @package PMCLibrary\r
   8  * @version $Id: fileio.satellite.php 636 2008-05-19 07:54:19Z scribe $\r
   9  * @date $Date: 2008-05-19 15:54:19 +0800 (星期一, 19 五月 2008) $\r
  10  */\r
  11 \r
  12 class FileIO{\r
  13         var $userAgent, $parameter, $thumbLocalPath;\r
  14         var $IFS;\r
  15 \r
  16         /* private 測試連線並且初始化遠端衛星主機 */\r
  17         function _initSatellite(){\r
  18                 if(!($fp = @fsockopen($this->parameter[0]['host'], 80))) return false;\r
  19 \r
  20                 $argument = 'mode=init&key='.$this->parameter[2];\r
  21                 $out = 'POST '.$this->parameter[0]['path']." HTTP/1.1\r\n";\r
  22                 $out .= 'Host: '.$this->parameter[0]['host']."\r\n";\r
  23                 $out .= 'User-Agent: '.$this->userAgent."\r\n";\r
  24                 $out .= "Content-Type: application/x-www-form-urlencoded\r\n";\r
  25                 $out .= 'Content-Length: '.strlen($argument)."\r\n\r\n";\r
  26                 $out .= $argument;\r
  27                 fwrite($fp, $out);\r
  28                 $result = fgets($fp, 128); // 取一次足以取到檔頭\r
  29                 fclose($fp);\r
  30 \r
  31                 return (strpos($result, '202 Accepted')!==false ? true : false); // 檢查狀態值偵測是否傳輸成功\r
  32         }\r
  33 \r
  34         /* private 傳送抓取要求到遠端衛星主機上面 */\r
  35         function _transloadSatellite($imgname){\r
  36                 if(!($fp = @fsockopen($this->parameter[0]['host'], 80))) return false;\r
  37 \r
  38                 $argument = 'mode=transload&key='.$this->parameter[2].'&imgurl='.$this->getImageLocalURL($imgname).'&imgname='.$imgname;\r
  39                 $out = 'POST '.$this->parameter[0]['path']." HTTP/1.1\r\n";\r
  40                 $out .= 'Host: '.$this->parameter[0]['host']."\r\n";\r
  41                 $out .= 'User-Agent: '.$this->userAgent."\r\n";\r
  42                 $out .= "Content-Type: application/x-www-form-urlencoded\r\n";\r
  43                 $out .= 'Content-Length: '.strlen($argument)."\r\n\r\n";\r
  44                 $out .= $argument;\r
  45                 fwrite($fp, $out);\r
  46                 $result = fgets($fp, 128); // 取一次足以取到檔頭\r
  47                 fclose($fp);\r
  48 \r
  49                 return (strpos($result, '202 Accepted')!==false ? true : false); // 檢查狀態值偵測是否傳輸成功\r
  50         }\r
  51 \r
  52         /* private 直接傳送檔案到遠端衛星主機上面 */\r
  53         function _uploadSatellite($imgname, $imgpath){\r
  54                 srand((double) microtime()*1000000);\r
  55                 $boundary = '---------------------'.substr(md5(rand(0,32000)), 0, 10); // 生成分隔線\r
  56 \r
  57                 $argument = ''; // 資料暫存\r
  58                 // 一般欄位資料轉換\r
  59                 $formField = array('mode' => 'upload', 'key' => $this->parameter[2], 'imgname' => $imgname);\r
  60                 foreach($formField as $ikey => $ival){\r
  61                         $argument .= "--$boundary\r\n";\r
  62                         $argument .= "Content-Disposition: form-data; name=\"".$ikey."\"\r\n\r\n";\r
  63                         $argument .= $ival."\r\n";\r
  64                         $argument .= "--$boundary\r\n";\r
  65                 }\r
  66                 // 上傳檔案欄位資料轉換\r
  67                 $imginfo = getimagesize($imgpath); // 取得圖檔資訊\r
  68                 $argument .= "--$boundary\r\n";\r
  69                 $argument .= 'Content-Disposition: form-data; name="imgfile"; filename="'.$imgname.'"'."\r\n";\r
  70                 $argument .= 'Content-Type: '.$imginfo['mime']."\r\n\r\n";\r
  71                 $argument .= join('', file($imgpath))."\r\n";\r
  72                 $argument .= "--$boundary--\r\n";\r
  73 \r
  74                 $out = 'POST '.$this->parameter[0]['path']." HTTP/1.1\r\n";\r
  75                 $out .= 'Host: '.$this->parameter[0]['host']."\r\n";\r
  76                 $out .= 'User-Agent: '.$this->userAgent."\r\n";\r
  77                 $out .= "Content-Type: multipart/form-data, boundary=$boundary\r\n";\r
  78                 $out .= 'Content-Length: '.strlen($argument)."\r\n\r\n";\r
  79                 $out .= $argument;\r
  80 \r
  81                 if(!($fp = @fsockopen($this->parameter[0]['host'], 80))) return false;\r
  82                 fwrite($fp, $out);\r
  83                 $result = fgets($fp, 128);\r
  84                 fclose($fp);\r
  85 \r
  86                 return (strpos($result, '202 Accepted')!==false ? true : false);\r
  87         }\r
  88 \r
  89         /* private 發出刪除圖片要求 */\r
  90         function _deleteSatellite($imgname){\r
  91                 if(!($fp = @fsockopen($this->parameter[0]['host'], 80))) return false;\r
  92 \r
  93                 $argument = 'mode=delete&key='.$this->parameter[2].'&imgname='.$imgname;\r
  94                 $out = 'POST '.$this->parameter[0]['path']." HTTP/1.1\r\n";\r
  95                 $out .= 'Host: '.$this->parameter[0]['host']."\r\n";\r
  96                 $out .= 'User-Agent: '.$this->userAgent."\r\n";\r
  97                 $out .= "Content-Type: application/x-www-form-urlencoded\r\n";\r
  98                 $out .= 'Content-Length: '.strlen($argument)."\r\n\r\n";\r
  99                 $out .= $argument;\r
 100                 fwrite($fp, $out);\r
 101                 $result = fgets($fp, 128);\r
 102                 fclose($fp);\r
 103 \r
 104                 return (strpos($result, '202 Accepted')!==false ? true : false);\r
 105         }\r
 106 \r
 107         /* private 儲存索引檔 */\r
 108         function _setIndex(){\r
 109                 $this->IFS->saveIndex(); // 索引表更新\r
 110         }\r
 111 \r
 112         function FileIO($parameter, $ENV){\r
 113                 require($ENV['IFS.PATH']);\r
 114                 $this->IFS = new IndexFS($ENV['IFS.LOG']); // IndexFS 物件\r
 115                 $this->IFS->openIndex();\r
 116                 register_shutdown_function(array($this, '_setIndex')); // 設定解構元 (PHP 結束前執行)\r
 117                 set_time_limit(120); // 執行時間 120 秒 (傳輸過程可能很長)\r
 118                 $this->userAgent = 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)'; // Just for fun ;-)\r
 119                 $this->thumbLocalPath = $ENV['PATH'].$ENV['THUMB']; // 預覽圖本機位置\r
 120                 $this->parameter = $parameter; // 將參數重新解析\r
 121                 $this->parameter[0] = parse_url($this->parameter[0]); // URL 位置拆解\r
 122                 /*\r
 123                         [0] : 衛星程式遠端 URL 位置\r
 124                         [1] : 是否使用 Transload 方式要求衛星程式抓取圖檔 (true:是　false:否，使用傳統 HTTP 上傳)\r
 125                         [2] : 傳輸認證金鑰\r
 126                         [3] : 遠端目錄對應 URL\r
 127                         [4] : 預覽圖是否上傳至遠端 (true: 是, false: 否，使用本機檔案)\r
 128                 */\r
 129         }\r
 130 \r
 131         function init(){\r
 132                 return $this->_initSatellite();\r
 133         }\r
 134 \r
 135         function imageExists($imgname){\r
 136                 if(!$this->parameter[4] && substr($imgname, -5) == 's.jpg') return file_exists($this->thumbLocalPath.$imgname);\r
 137                 return $this->IFS->beRecord($imgname);\r
 138         }\r
 139 \r
 140         function deleteImage($imgname){\r
 141                 if(is_array($imgname)){\r
 142                         foreach($imgname as $i){\r
 143                                 if(!$this->parameter[4] && substr($i, -5) == 's.jpg'){\r
 144                                         @unlink($this->thumbLocalPath.$i);\r
 145                                 }else{\r
 146                                         if(!$this->_deleteSatellite($i)) return false;\r
 147                                         $this->IFS->delRecord($i); // 自索引中刪除\r
 148 \r
 149                                 }\r
 150                         }\r
 151                         return true;\r
 152                 }\r
 153                 else{\r
 154                         if(!$this->parameter[4] && substr($imgname, -5) == 's.jpg') return @unlink($this->thumbLocalPath.$imgname);\r
 155                         if($result = $this->_deleteSatellite($imgname)) $this->IFS->delRecord($imgname);\r
 156                         return $result;\r
 157                 }\r
 158         }\r
 159 \r
 160         function uploadImage($imgname='', $imgpath='', $imgsize=0){\r
 161                 if($imgname=='') return true; // 支援上傳方法\r
 162                 if(!$this->parameter[4] && substr($imgname, -5) == 's.jpg') return false; // 不處理預覽圖\r
 163                 $result = $this->parameter[1] ? $this->_transloadSatellite($imgname) : $this->_uploadSatellite($imgname, $imgpath); // 選擇傳輸方法\r
 164                 if($result){\r
 165                         $this->IFS->addRecord($imgname, $imgsize, ''); // 加入索引之中\r
 166                         unlink($imgpath); // 確實上傳後刪除本機暫存\r
 167                 }\r
 168                 return $result;\r
 169         }\r
 170 \r
 171         function getImageFilesize($imgname){\r
 172                 if(!$this->parameter[4] && substr($imgname, -5) == 's.jpg') return @filesize($this->thumbLocalPath.$imgname);\r
 173                 if($rc = $this->IFS->getRecord($imgname)) return $rc['imgSize'];\r
 174                 return false;\r
 175         }\r
 176 \r
 177         function getImageURL($imgname){\r
 178                 if(!$this->parameter[4] && substr($imgname, -5) == 's.jpg') return $this->getImageLocalURL($imgname);\r
 179                 return $this->IFS->beRecord($imgname) ? $this->parameter[3].$imgname : false;\r
 180         }\r
 181 }\r
 182 ?>