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chunked编码有关问题

时间:2021-07-01 10:21:17 帮助过:6人阅读

chunked编码问题
PHP采集到的数据是chunked传输编码,gzip压缩格式的
chunk编码的思路貌似是:将数据分块传输,每一块分为头部和主体字段,头部包含主体信息的长度且以16进制表示,头部和主体以回车换行符分隔,最后一块以单行的0表示分块结束。。

响应头信息:



Array
(
[0] => HTTP/1.1 200 OK

[1] => Server: Dict/34002

[2] => Date: Wed, 17 Dec 2014 06:49:22 GMT

[3] => Content-Type: text/html; charset=utf-8

[4] => Transfer-Encoding: chunked

[5] => Connection: keep-alive

[6] => Keep-Alive: timeout=60

[7] => Cache-Control: private

[8] => Last-Modified: Wed, 17 Dec 2014 04:57:49 GMT

[9] => Expires: Wed, 17 Dec 2014 06:49:22 GMT

[10] => Set-Cookie: uvid=VJEncoTSVYJC; expires=Thu, 31-Dec-37 23:55:55 GMT; domain=.dict.cn; path=/

[11] => Content-Encoding: gzip

)





if($this->response_num==200)
{
if($this->is_chunked)
{
//读取chunk头部信息,获取chunk主体信息的长度
$chunk_size = (int)hexdec(fgets($this->conn));
//
while(!feof($this->conn) && $chunk_size > 0)
{
//读取chunk头部指定长度的信息
$this->response_body .= fread( $this->conn, $chunk_size );
fseek($this->conn, 2, SEEK_CUR);
$chunk_size = (int)hexdec(fgets( $this->conn,4096));
}
}
else
{
$len=0;
//读取请求返回的主体信息
while($items = fread($this->conn, $this->response_body_length))
{
$len = $len+strlen($items);
$this->response_body = $items;

//当读取完请求的主体信息后跳出循环,不这样做,貌似会被阻塞!!!
if($len >= $this->response_body_length)
{
break;
}
}
}

if($this->is_gzip)
{
$this->response_body = gzinflate(substr($this->response_body,10));
}

$this->getTrans($this->response_body);

}


基本上每次都会出现这个提示:
Warning: gzinflate(): data error in E:\CodeEdit\php\http\dict.php on line 384
偶尔能正常解析,应该是chunked解码有问题,查看过一些资料,也变换过集中解码方式,但还是功亏一篑
------解决思路----------------------
你可用 gzdecode 解码

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