public WinHTTPAutoProxy(bool bAutoDiscover, string sAutoConfigUrl)
{
this._bUseAutoDiscovery = bAutoDiscover;
if (!string.IsNullOrEmpty(sAutoConfigUrl))
{
this._sPACScriptLocation = sAutoConfigUrl;
}
this._oAPO = GetAutoProxyOptionsStruct(this._sPACScriptLocation, this._bUseAutoDiscovery);
this._hSession = WinHTTPNative.WinHttpOpen("Fiddler", 1, IntPtr.Zero, IntPtr.Zero, 0);
}
private static string GetWPADUrl()
{
IntPtr ptr;
string str;
bool flag = WinHTTPNative.WinHttpDetectAutoProxyConfigUrl(3, out ptr);
if (!flag)
{
Marshal.GetLastWin32Error();
}
if (flag && (IntPtr.Zero != ptr))
{
str = Marshal.PtrToStringUni(ptr);
}
else
{
str = string.Empty;
}
Utilities.GlobalFreeIfNonZero(ptr);
return(str);
}
public WinHTTPAutoProxy(bool bAutoDiscover, string sAutoConfigUrl)
{
this._bUseAutoDiscovery = bAutoDiscover;
if (!string.IsNullOrEmpty(sAutoConfigUrl))
{
if (sAutoConfigUrl.OICStartsWith("file:") || sAutoConfigUrl.StartsWith("\\\\") || (sAutoConfigUrl.Length > 2 && sAutoConfigUrl[1] == ':'))
{
Proxy.sUpstreamPACScript = WinHTTPAutoProxy.GetPACFileText(sAutoConfigUrl);
if (!string.IsNullOrEmpty(Proxy.sUpstreamPACScript))
{
FiddlerApplication.Log.LogFormat("!WARNING: System proxy was configured to use a file-protocol sourced script ({0}). Proxy scripts delivered by the file protocol are not supported by many clients. Please see http://blogs.msdn.com/b/ieinternals/archive/2013/10/11/web-proxy-configuration-and-ie11-changes.aspx for more information.", new object[]
{
sAutoConfigUrl
});
sAutoConfigUrl = "http://" + CONFIG.sFiddlerListenHostPort + "/UpstreamProxy.pac";
}
}
this._sPACScriptLocation = sAutoConfigUrl;
}
this._oAPO = WinHTTPAutoProxy.GetAutoProxyOptionsStruct(this._sPACScriptLocation, this._bUseAutoDiscovery);
this._hSession = WinHTTPNative.WinHttpOpen("Fiddler", 1, IntPtr.Zero, IntPtr.Zero, 0);
}
private static string GetWPADUrl()
{
IntPtr intPtr;
bool flag;
if (!(flag = WinHTTPNative.WinHttpDetectAutoProxyConfigUrl(3, out intPtr)))
{
Marshal.GetLastWin32Error();
}
string result;
if (flag && IntPtr.Zero != intPtr)
{
result = Marshal.PtrToStringUni(intPtr);
}
else
{
result = string.Empty;
}
Utilities.GlobalFreeIfNonZero(intPtr);
return(result);
}
public void Dispose()
{
WinHTTPNative.WinHttpCloseHandle(this._hSession);
}
public bool GetAutoProxyForUrl(string sUrl, out IPEndPoint ipepResult)
{
int num = 0;
WinHTTPNative.WINHTTP_PROXY_INFO wINHTTP_PROXY_INFO;
bool flag;
if (!(flag = WinHTTPNative.WinHttpGetProxyForUrl(this._hSession, sUrl, ref this._oAPO, out wINHTTP_PROXY_INFO)))
{
num = Marshal.GetLastWin32Error();
}
if (flag)
{
if (IntPtr.Zero != wINHTTP_PROXY_INFO.lpszProxy)
{
string text = Marshal.PtrToStringUni(wINHTTP_PROXY_INFO.lpszProxy);
ipepResult = Utilities.IPEndPointFromHostPortString(text);
if (ipepResult == null)
{
FiddlerApplication.Log.LogFormat("Proxy Configuration Script specified an unreachable proxy: {0} for URL: {1}", new object[]
{
text,
sUrl
});
}
}
else
{
ipepResult = null;
}
Utilities.GlobalFreeIfNonZero(wINHTTP_PROXY_INFO.lpszProxy);
Utilities.GlobalFreeIfNonZero(wINHTTP_PROXY_INFO.lpszProxyBypass);
return(true);
}
int num2 = num;
if (num2 <= 12015)
{
if (num2 == 12006)
{
FiddlerApplication._Log.LogString("Fiddler.Network.ProxyPAC> PAC Script download failure; Fiddler only supports HTTP/HTTPS for PAC script URLs.");
goto IL_13D;
}
if (num2 == 12015)
{
FiddlerApplication._Log.LogString("Fiddler.Network.ProxyPAC> PAC Script download failure; you must set the AutoProxyLogon registry key to TRUE.");
goto IL_13D;
}
}
else
{
switch (num2)
{
case 12166:
FiddlerApplication._Log.LogString("Fiddler.Network.ProxyPAC> PAC Script contents were not valid.");
goto IL_13D;
case 12167:
FiddlerApplication._Log.LogString("Fiddler.Network.ProxyPAC> PAC Script download failed.");
goto IL_13D;
default:
if (num2 == 12180)
{
FiddlerApplication._Log.LogString("Fiddler.Network.AutoProxy> AutoProxy Detection failed.");
goto IL_13D;
}
break;
}
}
FiddlerApplication._Log.LogString("Fiddler.Network.ProxyPAC> Proxy determination failed with error code: " + num);
IL_13D:
Utilities.GlobalFreeIfNonZero(wINHTTP_PROXY_INFO.lpszProxy);
Utilities.GlobalFreeIfNonZero(wINHTTP_PROXY_INFO.lpszProxyBypass);
ipepResult = null;
return(false);
}
public bool GetAutoProxyForUrl(string sUrl, out IPEndPoint ipepResult)
{
WinHTTPNative.WINHTTP_PROXY_INFO winhttp_proxy_info;
int num = 0;
bool flag = WinHTTPNative.WinHttpGetProxyForUrl(this._hSession, sUrl, ref this._oAPO, out winhttp_proxy_info);
if (!flag)
{
num = Marshal.GetLastWin32Error();
}
if (flag)
{
if (IntPtr.Zero != winhttp_proxy_info.lpszProxy)
{
string sHostAndPort = Marshal.PtrToStringUni(winhttp_proxy_info.lpszProxy);
ipepResult = Utilities.IPEndPointFromHostPortString(sHostAndPort);
if (ipepResult == null)
{
FiddlerApplication.Log.LogFormat("Proxy Configuration Script specified an unreachable proxy: {0} for URL: {1}", new object[] { sHostAndPort, sUrl });
}
}
else
{
ipepResult = null;
}
Utilities.GlobalFreeIfNonZero(winhttp_proxy_info.lpszProxy);
Utilities.GlobalFreeIfNonZero(winhttp_proxy_info.lpszProxyBypass);
return(true);
}
int num2 = num;
if (num2 <= 0x2eef)
{
switch (num2)
{
case 0x2ee6:
FiddlerApplication._Log.LogString("Fiddler.Network.ProxyPAC> PAC Script download failure; Fiddler only supports HTTP/HTTPS for PAC script URLs.");
goto Label_013E;
case 0x2eef:
FiddlerApplication._Log.LogString("Fiddler.Network.ProxyPAC> PAC Script download failure; you must set the AutoProxyLogon registry key to TRUE.");
goto Label_013E;
}
}
else
{
switch (num2)
{
case 0x2f86:
FiddlerApplication._Log.LogString("Fiddler.Network.ProxyPAC> PAC Script contents were not valid.");
goto Label_013E;
case 0x2f87:
FiddlerApplication._Log.LogString("Fiddler.Network.ProxyPAC> PAC Script download failed.");
goto Label_013E;
default:
if (num2 != 0x2f94)
{
goto Label_0124;
}
FiddlerApplication._Log.LogString("Fiddler.Network.AutoProxy> AutoProxy Detection failed.");
goto Label_013E;
}
}
Label_0124:
FiddlerApplication._Log.LogString("Fiddler.Network.ProxyPAC> Proxy determination failed with error code: " + num);
Label_013E:
Utilities.GlobalFreeIfNonZero(winhttp_proxy_info.lpszProxy);
Utilities.GlobalFreeIfNonZero(winhttp_proxy_info.lpszProxyBypass);
ipepResult = null;
return(false);
}
