HttpWebRequest的简单通过SSL（HTTPS）给出了404未在C＃发现 [英] Simple HttpWebRequest over SSL (https) gives 404 Not Found under C#
问题描述
我想打一个POST，坐在一个安全的连接一个php编写的Web服务。下面code是只是一个测试控制台应用程序我几个小时的反复试验后写道。从本质上讲，我发现了一些不同的方法来使用HttpWebRequest的，但所有的人都是一样的东西。
I want to make a POST to a php-written Web Service that sits on a secure connection. The following code is just a test console app I wrote after a few hours of trial and error. Essentially, I found out a few different methods to use HttpWebRequest, but all of them are the same thing.
与Web浏览器HTTP测试我的URI，应该返回一个空的HTML（一个空的机构）。该工程确定在浏览器中的在我的code
Testing my URI with 'http' on a web browser, should return a blank html (with an empty body). This works OK in a browser and in my code.
我继续一个尝试 http://www.google.com ，我得到了谷歌...（如预期）。 当我从http URI更改为https的问题就出现了。 在 Web浏览器测试我使用的URI的https，返回相同的空白HTML（这是预料）。 但是，当我尝试在code相同的URI，我得到一个404未找到。
I went ahead a tried http://www.google.com and I got google… (as expected). The problem arises when I change the URI from http to https. Testing my URI with 'https' on a web browser, returns the same blank html (this is expected). But when I try the same URI in code, I get a 404 Not Found.
下面是简单的code（和URI）（取消注释第二个尝试HTTPS）：
Here's the simple code (and the URI) (uncomment the second one to try https):
try
{
string lcUrl = "http://servicios.mensario.com/enviomasivo/apip/";
//string lcUrl = "https://servicios.mensario.com/enviomasivo/apip/";
// *** Establish the request
HttpWebRequest loHttp = (HttpWebRequest)WebRequest.Create(lcUrl);
// *** Set properties
loHttp.Timeout = 10000; // 10 secs
loHttp.Method = "POST"; // I added this for testing, but using GET or commenting this out doesn't change anything.
// Retrieve request info headers ******** HERE I GET THE EXCEPTION **********
HttpWebResponse loWebResponse = (HttpWebResponse)loHttp.GetResponse();
// All this code only works when lcUrl is NOT https.
Encoding enc = Encoding.GetEncoding(1252); // Windows default Code Page
StreamReader loResponseStream = new StreamReader(loWebResponse.GetResponseStream(), enc);
string lcHtml = loResponseStream.ReadToEnd();
loWebResponse.Close();
loResponseStream.Close();
}
catch ( WebException ex )
{
if ( ex.Status == WebExceptionStatus.ProtocolError )
{
HttpWebResponse response = ex.Response as HttpWebResponse;
if ( response != null )
{
// Process response
Console.WriteLine(ex.ToString());
}
}
}
Console.Read();
return;
唯一的例外是：
The exception is:
System.Net.WebException：远程服务器返回错误：（404）未找到。在 System.Net.HttpWebRequest.GetResponse（）
System.Net.WebException: The remote server returned an error: (404) Not Found. at System.Net.HttpWebRequest.GetResponse()
注意：此处显示的HTTP URL是真正的我必须使用，它不属于我，但另一家公司
note: The http url shown here is the real one I have to use, it doesn't belong to me but to another company.
如果响应是OK，这是lcHtml应包含以下内容：
If the response were OK, this is what lcHtml should contain:
<html>
<head>
<title></title>
</head>
<body>
</body>
</html>
自从我一派， StackOverflowed 的一个很多发布这个问题之前，我发现了一些想法。一是增加了忽略证书code：
Since I googled and StackOverflowed a lot before posting this question, I found out a few ideas. One is to add the "ignore certificates" code:
System.Net.ServicePointManager.ServerCertificateValidationCallback += delegate( object sender, System.Security.Cryptography.X509Certificates.X509Certificate certificate, System.Security.Cryptography.X509Certificates.X509Chain chain, System.Net.Security.SslPolicyErrors sslPolicyErrors )
{
return true; // **** Always accept
};
这似乎并没有改变任何东西。
That doesn't seem to change anything.
其他网友说的SSL协议类型可能是错误的，所以，我试图与这两个无济于事：
Other user said that the SSL Protocol Type might be wrong… so I tried with these two to no avail:
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls;
ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;
任何想法？
更新 我回去，并创建了一个简单的控制台应用程序。 的的只有的code是这样的：
UPDATE I went back and created a simple console app. The only code is this:
WebRequest req = WebRequest.Create("http://servicios.mensario.com/enviomasivo/apip/");
WebResponse resp = req.GetResponse();
这是工作。没有错误。
不过，如果我的URI更改为https：
However, if I change the URI to https:
WebRequest req = WebRequest.Create("https://servicios.mensario.com/enviomasivo/apip/");
WebResponse resp = req.GetResponse();
我得到一个错误（继续前进，尝试）。
I get an error (go ahead and try it).
然而的这的PHP code似乎工作。唯一的相关的code线，我看到不同的是：
However this php code seems to work. The only relevant line of code that I see different is:
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
注释，在西班牙语说：有了这个，我们可以忽略SSL证书
The comment, in spanish says: "With this we can ignore the SSL Cert".
我觉得这是关键。但
System.Net.ServicePointManager.ServerCertificateValidationCallback…
...的东西，似乎并不具有同样的效果。
…stuff, doesn't seem to have the same effect.
在此先感谢。
推荐答案
使用小提琴手和Firefox一些试验后，似乎您的网址是问题。对我来说，这给出了一个404：
After some experimentation using fiddler and firefox, it seems that your URL is the problem. For me, this gives a 404:
https://servicios.mensario.com/enviomasivo/apip/
https://servicios.mensario.com/enviomasivo/apip/
和这不：
https://servicios.mensario.com/enviomasivo/apip
https://servicios.mensario.com/enviomasivo/apip
请注意，结束斜线。此外，您发布的PHP示例没有结束斜线无论是。
Note, the ending slash. Also, the php sample you posted doesn't have the ending slash either.
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