【发布时间】：2019-08-13 19:45:17
【问题描述】：
亲爱的 SO 社区你好。
我有一个问题折磨了我好几个月都没有解决。
我正在尝试在 HTTP/2 端点发出请求，该端点使用一些以冒号开头的标头。示例：
:method: "POST"
我尝试过使用 python(hyper, requests)、php(guzzle) 和 js(fetch)。 据推测，我已经使用 js 实现了所需的结果，但 CORS 策略返回给我一个“不透明”的结果。
任何帮助都会很棒！
JS 结果大概是正确的“不透明”
fetch("https://www.example.com/users/sign_in",
{
"credentials":"include",
"headers":{
"accept":"text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3",
"accept-language":"en-US,en;q=0.9,el;q=0.8",
"cache-control":"max-age=0",
"content-type":"application/x-www-form-urlencoded",
"accept-encoding": "gzip, deflate, br",
"content-length": 614,
"origin": "https://www.example.com",
"sec-fetch-mode": "navigate",
"sec-fetch-site": "same-origin",
"user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.87 Safari/537.36",
},
"referrer":"https://www.example.com/users/sign_in",
"referrerPolicy":"no-referrer-when-downgrade",
"redirect": "follow",
"body":"..."
"method":"POST",
"mode":"no-cors",
":authority": "www.example.com",
":method": "POST",
":path": "/users/sign_in",
":scheme": "https"
})
Python 结果 500 或 404
context = tls.init_context()
context.check_hostname = False
context.verify_mode = ssl.CERT_NONE
with HTTP20Connection('www.example.com', port=443, ssl_context=context) as c:
headers = {
":authority": "www.example.com",
":method": "GET",
":path": "/users/sign_in",
":scheme": "https",
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3",
"accept-encoding": "gzip, deflate, br",
"accept-language": "en-US,en;q=0.9,el;q=0.8",
"sec-fetch-mode": "navigate",
"sec-fetch-site": "none",
"sec-fetch-user": "?1",
"upgrade-insecure-requests": "1",
"user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.100 Safari/537.36"
}
c.request('GET', 'www.example.com/users/sign_in', headers=headers)
PHP 结果 500 或 curl 错误 55
$jar = new CookieJar;
$client = new Client([
// Base URI is used with relative requests
'cookies' => $jar,
'version' => 2.0,
'debug' => fopen('php://stderr', 'w'),
]);
$client->request('GET', 'https://www.example.com/users/sign_in');
$response = $client->request('POST', 'https://www.example.com/users/sign_in', [
'headers' => [
":authority"=> "www.example.com",
":method"=> "POST",
":path"=> "/users/sign_in",
":scheme"=> "https",
"accept"=> "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3",
"accept-encoding"=> "gzip, deflate, br",
"accept-language"=> "en-US,en;q=0.9,el;q=0.8",
"cache-control"=> "max-age=0",
"content-length"=> "616",
"content-type"=> "application/x-www-form-urlencoded",
"origin"=> "https://www.example.com",
"referer"=> "https://www.example.com/users/sign_in",
"sec-fetch-mode"=> "navigate",
"sec-fetch-site"=> "same-origin",
"sec-fetch-user"=> "?1",
"upgrade-insecure-requests"=> "1",
"user-agent"=> "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.100 Safari/537.36"
],
'form_params' => [ ... ],
'version' => 2.0,
'allow_redirects' => true
]);
【问题讨论】：
-
我认为标题字段不能以
:开头。这是标头名称和值之间的分隔符。 -
看起来您尝试使用的标头只是 URL 中的重复字段。是什么让您认为这是必要的？
-
感谢两位的回复。正如您在此处imgur.com/MKuSvar devtools 的屏幕截图中看到的那样，标头包含在请求中。如果没有标头，请求将返回 404 或 500 响应。
-
那些不是真正的标头，它只是开发人员工具显示 HTTP 请求行详细信息的方式。开头的冒号是表示它们不是真实的方式。
-
@Barmar 那么为什么使用 JS 脚本，当它们不存在时我得到 500 响应，而当存在请求时，请求就正常了？
标签： javascript php python request