我们的环境需要使用外部代理进行异地服务.通常这不是问题.在这种情况下,使用Twilio,返回的额外标头会中断客户端.
传出标题：
POST /2010-04-01/Accounts/FOO/SMS/Messages.json HTTP/1.1 Authorization: Basic FOO== User-Agent: twilio-PHP/3.10.0 Host: api.twilio.com Accept: */* Accept-Charset: utf-8 Content-Type: application/x-www-form-urlencoded Content-Length: 108
回应标题：
HTTP/1.0 200 Connection established HTTP/1.1 201 Created Server: Nginx Date: Thu,06 Jun 2013 14:39:24 GMT Content-Type: application/json; charset=utf-8 Content-Length: 551 Connection: close X-Powered-By: PHP/5.3.11
我只能假设代理是添加额外的HTTP头.
Twilio客户端确实检查：
list($head,$body) = ($parts[0] == 'HTTP/1.1 100 Continue')
据了解,有些卷曲的版本会自动在请求中添加一个Expect标头,而HTTP 100将在响应中返回,但在这种情况下,它不是,并且响应是200 Connection已建立.为什么值得添加一个空的Expect：或者Expect：培根没有改变结果.
我真的不想在这里劫持Twilio客户端,我特别想避免只添加一个|| $parts [0] ==’HTTP / 1.0 200连接建立’,因为它似乎是凌乱的.
是否可以发送一个请求头来抑制/隐藏额外的头？或者,卷曲选项我看不到忽视它？
出站代理是Linux / Squid
代理问题是许多脚本面临的问题.在互联网上找到的首选解决方案是简单地添加以下代码行.
<?PHP
// cURL automatically handles Proxy rewrites,remove the "HTTP/1.0 200 Connection established" string
if (false !== stripos($response,"HTTP/1.0 200 Connection established\r\n\r\n")) {
$response = str_ireplace("HTTP/1.0 200 Connection established\r\n\r\n",'',$response);
}
?>
现在添加到twilio客户端会确实有点凌乱.幸运的是,您可以使用命名空间重新创建本机功能.请参见以下示例.
<?PHP
namespace FakeCurl;
//create curl_exec function with same name,but its created in the FakeCurl namespace Now.
function curl_exec($ch) {
//execute the actual curl_exec function in the main namespace
$response = \curl_exec($ch);
// cURL automatically handles Proxy rewrites,remove the "HTTP/1.0 200 Connection established" string
if (false !== stripos($response,"HTTP/1.0 200 Connection established\r\n\r\n")) {
$response = str_ireplace("HTTP/1.0 200 Connection established\r\n\r\n",$response);
}
return "ADDED TO RESPONSE\r\n\r\n".$response;
}
//make a regular curl request,no alterations.
$curl = curl_init();
curl_setopt_array( $curl,array(
CURLOPT_HEADER => true,CURLOPT_NOBODY => true,CURLOPT_RETURNTRANSFER => true,CURLOPT_URL => 'https://stackoverflow.com' ) );
$response = curl_exec( $curl );
curl_close( $curl );
echo '<pre>'.$response.'</pre>';
?>
产量
ADDED TO RESPONSE HTTP/1.1 200 OK Cache-Control: public,max-age=11 Content-Length: 191951 Content-Type: text/html; charset=utf-8 Expires: Wed,12 Jun 2013 07:09:02 GMT Last-Modified: Wed,12 Jun 2013 07:08:02 GMT vary: * x-frame-options: SAMEORIGIN Date: Wed,12 Jun 2013 07:08:49 GMT
所以要与twilio客户端一起使用,你需要放在脚本的最上方如下：
<?PHP
namespace FakeCurl;
function curl_exec($ch) {
$response = \curl_exec($ch);
// cURL automatically handles Proxy rewrites,$response);
}
return $response;
}
include("twilio.PHP");
?>
如果命名空间选项由于某种原因失败,我将在twilio客户端之外添加一个简单的函数.
<?PHP
function fixProxyResponse($response) {
// cURL automatically handles Proxy rewrites,$response);
}
return $response;
}
然后改变twilio脚本TinyHttp.PHP并且只改变以下行(〜linenr 63)
if ($response = curl_exec($curl)) {
$parts = explode("\r\n\r\n",$response,3);
list($head,$body) = ($parts[0] == 'HTTP/1.1 100 Continue')
至
if ($response = curl_exec($curl)) {
$parts = explode("\r\n\r\n",fixProxyResponse($response),$body) = ($parts[0] == 'HTTP/1.1 100 Continue')