【发布时间】:2014-05-19 22:06:02
【问题描述】:
我花了一整天的时间来解决这个问题。我有一个自定义网络服务器,并且来自 Chrome 或 POSTman ReST 客户端的请求工作正常。当我在 c# 中使用 webclient 或 httpwebrequest 时,我得到:服务器违反了协议。尝试将 zip 文件传输到客户端时,Section=ResponseStatusLine。
我试过了:
public static bool SetAllowUnsafeHeaderParsing20()
{
//Get the assembly that contains the internal class
Assembly aNetAssembly = Assembly.GetAssembly(typeof(System.Net.Configuration.SettingsSection));
if (aNetAssembly != null)
{
//Use the assembly in order to get the internal type for the internal class
Type aSettingsType = aNetAssembly.GetType("System.Net.Configuration.SettingsSectionInternal");
if (aSettingsType != null)
{
//Use the internal static property to get an instance of the internal settings class.
//If the static instance isn't created allready the property will create it for us.
object anInstance = aSettingsType.InvokeMember("Section", BindingFlags.Static | BindingFlags.GetProperty | BindingFlags.NonPublic, null, null, new object[] { });
if (anInstance != null)
{
//Locate the private bool field that tells the framework is unsafe header parsing should be allowed or not
FieldInfo aUseUnsafeHeaderParsing = aSettingsType.GetField("useUnsafeHeaderParsing", BindingFlags.NonPublic | BindingFlags.Instance);
if (aUseUnsafeHeaderParsing != null)
{
aUseUnsafeHeaderParsing.SetValue(anInstance, true);
return true;
}
}
}
}
return false;
}
和
<system.net>
<settings>
<httpWebRequest useUnsafeHeaderParsing="true" />
</settings>
</system.net>
在 app.config 中。
我也尝试过 keep-alive=false 并且也弄乱了标题/
这是 webrequest,在 client2Downloadfile 调用上失败:
private void sendManifest()
{
Uri remoteuri = new Uri(Properties.Settings.Default.masterurl);
SetAllowUnsafeHeaderParsing20();
using (WebClient client = new WebClient())
{
NameValueCollection reqparm = new NameValueCollection();
reqparm.Add("application", "TestApp");
reqparm.Add("manifest", manifest);
try
{
byte[] responsebytes = client.UploadValues(Properties.Settings.Default.masterurl, "POST", reqparm);
string responsebody = Encoding.UTF8.GetString(responsebytes);
if (responsebody != "")
{
using (WebClient client2 = new WebClient())
{
client2.DownloadFile(Properties.Settings.Default.masterurl + "//" + responsebody + "transfer.zip", "c:\\temp.zip");
}
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
}
}
可以在以下位置查看网络服务器响应:
http://gplus2.net:9532/97e456f0-9b57-4315-b03d-40a67f76d440/transfer.zip
非常感谢任何帮助,因为我确实已经没有想法了。这显然是一个格式错误的服务器标头,但我已将其保持在最低限度。
【问题讨论】: