sablog远程图片本地化功能hack

主要实现了把提交的文章中如<img src="XXXX.jpg" XXXX/>的图片抓回服务器保存为文章的附件。

并且可以本地上传的图片附件一样进行管理。

修改在sablogx 1.6 1.6 Build 20071004下通过测试

ps:如果内容中有很多张引用的远程图片是同一个地址的，则只保存一份，节约服务器空间。嘿嘿。

并且会把<img src="XXXX.jpg" XXXX/>的内容替换成相应附件id的sablog表述，如

[attach=id] 

废话不说了，看代码吧。

加入article.php中的代码，因为有修改文章和新增文章两种，这里我只是简单的同样代码复制两份来解决。其实也可以抽出来做个单独的php吧。

//保存远程图片      // code by suddy      // Thanks for angel，喜悦国际村&xd888      $attachs = $attach_data = array();//由于可能远程未被触发，所以要先声明$attachs数组      if(!empty($saveremoteing)){           $gd_version = gd_version();           $content = stripslashes($content);           $img_array = array();                      //获取输入内容中的远程图片部分           $ismatch=preg_match_all("/(src|SRC)=[\"|'| ]{0,}(http:\/\/(.*)\.(gif|jpg|jpeg|bmp|png))/isU",$content,$img_array);           if($ismatch!=0){                set_time_limit(0);                $imgUrl = $options['attachments_dir'];                $yearMonth = strftime("%Y%m",time());                $imgPath = SABLOG_ROOT.$imgUrl."/date_".$yearMonth;                $milliSecond = strftime("%H%M%S",time());                if(!is_dir($imgPath))                      @mkdir($imgPath,0777);                $fnamehash = md5(uniqid(microtime()));                $oldvalue="suddy";//赋初值是为了后续判断中strpos函数不会在第0个位置找到而返回0的时候被解释成false                foreach($img_array[2] as $key =>$value) {                     $value = trim($value);                     //判断是否是重复图片，如果重复，只保存一份                     if(strpos($oldvalue,$value)==false){                          $oldvalue=$oldvalue.$value;                          $get_file = @file_get_contents($value);                          if($get_file) {                                                              //获取远程图片文件名                               preg_match_all("(((=|\)|\(|&|\^|%|$|!|@|\+|-|\w)*)\.(gif|jpg|jpeg|bmp|png))",$value,$fileName);                               $fileName=addslashes(strtolower($fileName[0][0]));                               //获取远程图片大小                               $fileSize = getRemoteFileSize($value);                                                              //因为实在不清楚filetype要怎么获取，手工构造了，大大们多多指点                               $fileType="";                               if(preg_match_all("(jpg)",$fileName,$typetemp))                                    $fileType="image/jpg";                               if(preg_match_all("(jpeg)",$fileName,$typetemp))                                    $fileType="image/jpeg";                               if(preg_match_all("(gif)",$fileName,$typetemp))                                    $fileType="image/gif";                               if(preg_match_all("(png)",$fileName,$typetemp))                                    $fileType="image/png";                               if(preg_match_all("(bmp)",$fileName,$typetemp))                                    $fileType="image/bmp";                                                                   //构造filepath字段，该字段以$options['attachments_dir']为根                               $ext=split("(\.)",$fileName);                               $ext=strtolower($ext[1]);                               if($ext=="jpg")                                    $ext="jpg";                               if($ext=="jpeg")                                    $ext="jpeg";                               if($ext=="gif")                                    $ext="gif";                               if($ext=="bmp")                                    $ext="bmp";                               if($ext=="png")                                    $ext="png";                               if($ext!="jpg"&&$ext!="jpeg"&&$ext!="gif"&&$ext!="bmp"&&$ext!="png")                                    $ext="";                               $filePath="/date_".$yearMonth."/".$fnamehash.".".$ext;                                                              //                               $rndFileName = $imgPath."/".$fnamehash.".".$ext;                               $fileurl = $cache_settings['siteurl'].$imgUrl."/date_".$yearMonth."/".$fnamehash.".".$ext;                               $fp = @fopen($rndFileName,"w");                               @fwrite($fp,$get_file);                               @fclose($fp);                                                              // 判断是否使用缩略图                               if($imginfo=@getimagesize($value)){                                    if ($options['attachments_thumbs'] && $gd_version) {                                         $size = explode('x', strtolower($options['attachments_thumbs_size']));                                         $attachsubdir="/date_".$yearMonth."/";                                         if (($imginfo[0] > $size[0] || $imginfo[1] > $size[1]) && $fileSize < 2048000) {                                              $attach_thumb = array(                                                   'filepath'         => $rndFileName,                                                   'filename'         => $fnamehash,                                                   'extension'     => $ext,                                                   'attachsubdir' => $attachsubdir,                                                   'thumbswidth'     => $size[0],                                                   'thumbsheight' => $size[1],                                              );                                              $thumb_data = generate_thumbnail($attach_thumb);                                              $attach_data['thumbwidth']     = $thumb_data['thumbwidth'];                                              $attach_data['thumbheight']     = $thumb_data['thumbheight'];                                              $attach_data['thumbfilepath'] = $attachsubdir.$thumb_data['thumbfilepath'];                                         }                                    }                               }//缩略图处理完毕                                                              // 把文件信息插入数据库                               $isimage=1;                               $DB->query("INSERT INTO {$db_prefix}attachments (articleid,filename,filesize,filetype,filepath,dateline,downloads,isimage,thumb_filepath,thumb_width,thumb_height) VALUES ('".$articleid."', '".$fileName."', '".$fileSize."', '".addslashes($fileType)."', '".addslashes($filePath)."', '$timestamp', '0', '1', '".$attach_data['thumbfilepath']."', '".$attach_data['thumbwidth']."','".$attach_data['thumbheight']."')");                               $aidtmp = $DB->insert_id();                               $attachs[$aidtmp] = array(                                    'attachmentid' => $aidtmp,                                    'dateline' => $timestamp,                                    'filename' => addslashes($fileName),                                    'filetype' => addslashes($fileType),                                    'filepath' => addslashes($filePath),                                    'filesize' => addslashes($fileSize),                                    'downloads' => 0,                                    'thumb_filepath' => $attach_data['thumbfilepath'],                                    'thumb_width' => $attach_data['thumbwidth'],                                    'thumb_height' => $attach_data['thumbheight'],                                    'isimage' => $isimage                               );                               unset($isimage);                               unset($attach_data);                               //$s=addslashes(serialize($attachs));                               //$searcharray[] = '[localfile='.$localid[$key].']';                               //$searcharray[] = '[localfile='.$localid[$key].']';                               //$replacearray[] = '[attach='.$aidtmp.']';                               //$tobereplace=addslashes($tobereplace)                               $content = ereg_replace("<(img|IMG)[^>]*(SRC|src)(\s)*=(\s)*[\"|'| ]".$value."[\"|'| ][^>]*>","[attach=".$aidtmp."]",$content);                                }//一个图片附件处理完毕                     }                }                unset($oldvalue);           }           //$content = addslashes($content);      }// 保存远程图片完毕

然后是uploadfiles.php中的一个小修改，去掉了$attachs的定义来让外部的$attachs数组成员直接传入使用

//$attachments = $attachs = $attach_data = array(); 改为
$attachments = $attach_data = array(); 

在include下的func_attachment.php中加入了一个自定义函数来获取远程图片大小

function getRemoteFileSize($url){              $url = parse_url($url);              if($fp = @fsockopen($url['host'],empty($url['port'])?80:$url['port'],$error)){                      fputs($fp,"GET ".(empty($url['path'])?'/':$url['path'])." HTTP/1.1");                      fputs($fp,"Host:$url[host]");                      while(!feof($fp)){                                  $tmp = fgets($fp);                                  if(trim($tmp) == ''){                                              break;                                  }else if(preg_match('/Content-Length:(.*)/si',$tmp,$arr)){                                              return trim($arr[1]);                                  }                      }                      return null;              }else{                      return null;              } }