火车头采集器对接织梦cms图集发布时, 采集网上图片超时的解决方法

背景介绍:

火车头采集器对接织梦cms图片集发布时, 对于多张(超过30张)大图片时, 经常会出现图集发布超时的情况. 

问题分析:

因为php对于资源的处理有默认的超时时间30秒, 而我尝试了好多方法, 都无法规避php运行30秒超时的这个问题. 所以想了个折中方案. 

折中方案:

在采集网上图片时, 判断当前采集了如果已经到了28秒, 那么就不再采集下面的其他图片. 

修改php代码:

打开文件dede/inc/inc_archives_functions.php

关注下列代码中begin_time和now_time判断部分.

 

function GetCurContentAlbum($body, $rfurl, &$firstdd)
{
    global $dsql,$cfg_multi_site,$cfg_basehost,$cfg_ddimg_width;
    global $cfg_basedir,$pagestyle,$cuserLogin,$cfg_addon_savetype;
    $begin_time = time();
    require_once(DEDEINC.'/dedecollection.func.php');
    if(empty($cfg_ddimg_width))    $cfg_ddimg_width = 320;
    $rsimg = '';
    $cfg_uploaddir = $GLOBALS['cfg_image_dir'];
    $cfg_basedir = $GLOBALS['cfg_basedir'];
    $basehost = 'http://'.$_SERVER['HTTP_HOST'];
    //$img_array = array();
    //echo "<br />body: ".$body;
    preg_match_all("/(src)=[\"|'| ]{0,}(http:\/\/([^>]*)\.(gif|jpg|png))/isU",$body,$img_array);
    $img_array = array_unique($img_array);
    //echo "<br />";
    //print_r($img_array);
    $imgUrl = $cfg_uploaddir.'/'.MyDate($cfg_addon_savetype, time());
    $imgPath = $cfg_basedir.$imgUrl;
    if(!is_dir($imgPath.'/'))
    {
        MkdirAll($imgPath,$GLOBALS['cfg_dir_purview']);
        CloseFtp();
    }
    $milliSecond = 'co'.dd2char( MyDate('ymdHis',time())) ;
    foreach($img_array as $key=>$value)
    {
	    for ($i = 0; $i < count($value); $i++)
		{
		    $now_time = time();
		    if ($now_time - $begin_time >= 28) {
		        //已经执行了28秒, 很快就超时了, 不再获取其他外部资源, 避免超时
		        return $rsimg;
		    }
			$value1 = $value[$i];
			$value1 = trim($value1);
			$value1 = str_replace("src='", "", $value1);
			$value1 = str_replace("src=", "", $value1);
			$value1 = str_replace("src=\"", "", $value1);
		    echo "<br />download img from web: ".$value1;
			if(preg_match("#".$basehost."#i", $value1) || !preg_match("#^http:\/\/#i", $value1)
			|| ($cfg_basehost != $basehost && preg_match("#".$cfg_basehost."#i", $value1)))
			{
			    //echo "<br />continue;";
				continue;
			}
			$itype =  substr($value1, -4, 4);
			if( !preg_match("#\.(gif|jpg|png)#", $itype) ) $itype = ".jpg";

			$rndFileName = $imgPath.'/'.$milliSecond.'-'.$key.'-'.$i.$itype;
			$iurl = $imgUrl.'/'.$milliSecond.'-'.$key.'-'.$i.$itype;
			//echo "<br /> iurl:".$iurl;

			//下载并保存文件
			$rs = DownImageKeep($value1, $rfurl, $rndFileName, '', 0, 30);
			if($rs)
			{
				$info = '';
				$imginfos = GetImageSize($rndFileName, $info);
				$fsize = filesize($rndFileName);
				$filename = $milliSecond.'-'.$key.$itype;
				//保存图片附件信息
				$inquery = "INSERT INTO `#@__uploads`(arcid,title,url,mediatype,width,height,playtime,filesize,uptime,mid)
				VALUES ('0','$filename','$iurl','1','{$imginfos[0]}','$imginfos[1]','0','$fsize','".time()."','".$cuserLogin->getUserID()."'); ";
				$dsql->ExecuteNoneQuery($inquery);
				$fid = $dsql->GetLastID();
				AddMyAddon($fid, $iurl);
				if($pagestyle > 2)
				{
					$litpicname = GetImageMapDD($iurl, $cfg_ddimg_width);
				}
				else
				{
					$litpicname = $iurl;
				}
				if(empty($firstdd) && !empty($litpicname))
				{
					$firstdd = $litpicname;
					if(!file_exists($cfg_basedir.$firstdd))
					{
						$firstdd = $iurl;
					}
				}
				@WaterImg($rndFileName, 'down');
				$rsimg .= "{dede:img ddimg='$litpicname' text='' width='".$imginfos[0]."' height='".$imginfos[1]."'} $iurl {/dede:img}\r\n";
			}
		}
    }
    return $rsimg;
}