private void OnBeginRequest(object sender, EventArgs e)
{
HttpContext httpContext = HttpContext.Current;
HttpRequest request = httpContext.Request;
if (RequestFilterModule.BlockNonCafeRequest)
{
string a = HttpContext.Current.Request.Headers[WellKnownHeader.XIsFromCafe];
if (!string.Equals(a, "1"))
{
httpContext.Response.Headers.Set("X-BlockDirectBERequest", "1");
throw new BadRequestException();
}
}
if (Utility.IsResourceRequest(request.Url.LocalPath))
{
return;
}
httpContext.Response.Headers.Set("X-Content-Type-Options", "nosniff");
this.ProcessFeatureRedirection(httpContext, request);
RequestTypeInfo requestTypeInfo = RequestFilterModule.DetermineRequestType(request);
this.StampTokenToHeader(httpContext, request, requestTypeInfo);
this.HandleRedirection(httpContext, request, requestTypeInfo);
}
private void HandleRedirection(HttpContext httpContext, HttpRequest request, RequestTypeInfo requestTypeInfo)
{
string text = null;
if (requestTypeInfo.Need302Redirect)
{
text = request.RawUrl.Insert(request.FilePath.Length, "/");
}
else if (requestTypeInfo.NeedRedirectTargetTenant)
{
text = EcpUrl.ProcessUrl(request.RawUrl, true);
text = EcpUrl.RemoveQueryParameter(text, requestTypeInfo.IsDelegatedAdminRequest ? "delegatedorg" : "organizationcontext", false);
}
else if (requestTypeInfo.UseImplicitPathRewrite && requestTypeInfo.IsSecurityTokenPresented)
{
text = request.Headers[RequestFilterModule.OriginalUrlKey];
}
if (text != null)
{
ExTraceGlobals.RedirectTracer.TraceInformation <string>(0, 0L, "[RequestFilterModule::HandleRedirection] Redirect to {0}).", text);
httpContext.Response.Redirect(text, true);
}
}
internal static RequestTypeInfo DetermineRequestType(HttpRequest httpRequest)
{
string filePath = httpRequest.FilePath;
NameValueCollection queryString = httpRequest.QueryString;
RequestTypeInfo result = default(RequestTypeInfo);
string text = queryString["delegatedorg"];
if (!string.IsNullOrEmpty(text))
{
result.NeedRedirectTargetTenant = true;
result.IsDelegatedAdminRequest = true;
result.TargetTenant = text;
}
string text2 = queryString["organizationcontext"];
if (!string.IsNullOrEmpty(text2))
{
result.NeedRedirectTargetTenant = true;
result.IsByoidAdmin = true;
result.TargetTenant = text2;
}
if (result.IsDelegatedAdminRequest && result.IsByoidAdmin)
{
throw new BadRequestException(new Exception("Both delegatedorg and organizationcontext parameters are specified in request url."));
}
Match match = RequestFilterModule.regex.Match(filePath);
if (match.Success)
{
Group group = match.Groups["isOrgContext"];
Group group2 = match.Groups["targetTenant"];
Group group3 = match.Groups["esoAddress"];
Group group4 = match.Groups["closeSlash"];
if (group2.Success)
{
if (result.NeedRedirectTargetTenant)
{
throw new BadRequestException(new Exception("Both '/@' style and parameter style are used in request url."));
}
if (group.Success)
{
result.IsByoidAdmin = true;
}
else
{
result.IsDelegatedAdminRequest = true;
if (filePath.EndsWith("/", StringComparison.InvariantCulture))
{
result.UseImplicitPathRewrite = true;
}
result.IsSecurityTokenPresented = DelegatedAuthenticationModule.IsSecurityTokenPresented(httpRequest);
}
result.TargetTenant = group2.Value;
}
if (group3.Success)
{
result.IsEsoRequest = true;
result.EsoMailboxSmtpAddress = group3.Value;
}
if (!group4.Success)
{
result.Need302Redirect = true;
}
}
return(result);
}
private void StampTokenToHeader(HttpContext httpContext, HttpRequest request, RequestTypeInfo requestTypeInfo)
{
if (requestTypeInfo.IsDelegatedAdminRequest)
{
request.Headers.Set(RequestFilterModule.TargetTenantKey, requestTypeInfo.TargetTenant);
string text = request.RawUrl;
if (requestTypeInfo.UseImplicitPathRewrite)
{
text = text.Insert(request.FilePath.Length, "default.aspx");
}
request.Headers.Set(RequestFilterModule.OriginalUrlKey, text);
if (requestTypeInfo.IsSecurityTokenPresented)
{
httpContext.Items[RequestFilterModule.NoResolveIdKey] = "1";
}
}
else if (requestTypeInfo.IsByoidAdmin)
{
request.Headers.Set(RequestFilterModule.OrganizationContextKey, requestTypeInfo.TargetTenant);
}
if (requestTypeInfo.IsEsoRequest)
{
request.Headers.Set("msExchEcpESOUser", requestTypeInfo.EsoMailboxSmtpAddress);
}
}
