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Call a WCF service with a HttpClient

I have to call a WCF service. The WCF service is on and I can edit its configuration.
I want to create a client that calls the service. I cannot add the service reference to my client, so I am trying to call it with a HttpClient.
The client side code:
using (var client = new HttpClient())
{
//soapString is my input class serialized
var content = new StringContent(soapString, Encoding.UTF8, "text/xml");
using (var postResponse = client.PostAsync("http://localhost:52937/Attempts.svc/", content).Result)
{
string postResult = postResponse.Content.ReadAsStringAsync().Result;
}
}
The server side code:
[ServiceContract]
public interface IAttempts
{
[OperationContract]
void ReceiveAttemptResult(ReceiveAttemptResultInput result);
}
public class Attempts : IAttempts
{
string _backendUrl;
public void ReceiveAttemptResult(ReceiveAttemptResultInput result)
{
//...
}
}
And in the end the web.config server side:
<system.serviceModel>
<services>
<service name="it.MC.Listeners.Attempts">
<endpoint address="" contract="it.MC.Listeners.IAttempts" binding="basicHttpBinding"/>
<endpoint address="mex" contract="IMetadataExchange" binding="mexHttpBinding"/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="">
<serviceMetadata httpGetEnabled="true" httpsGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="false" />
</behavior>
</serviceBehaviors>
</behaviors>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
</system.serviceModel>
When I call the service, I just obtain an empty string and I cannot stop in debug inside the service... What's wrong?
Thank you

Just in case this bedevils anyone else. Thank you #Disappointed for your missing piece of the puzzle, it prompted me to run the thing in WCF Test Client with Fiddler open to see what I was missing:
HttpClient httpClient = new HttpClient();
httpClient.DefaultRequestHeaders.Add("SOAPAction", "http://tempuri.org/IMyService/Mymethod_Async");
string soapEnvelope = "<s:Envelope xmlns:s= \"http://schemas.xmlsoap.org/soap/envelope/\"><s:Body><Mymethod_Async xmlns=\"http://tempuri.org/\"/></s:Body></s:Envelope>";
var content = new StringContent(soapEnvelope, Encoding.UTF8, "text/xml");
HttpResponseMessage hrm = httpClient.PostAsync("http://MyService.MyDomain.com/MyService.svc", content).Result;

Why Thread.CurrentPrincipal.Identity.IsAuthenticated is always false?

I have this WCF service and I'm trying to apply authentication and authorization mechanism in it.
It's my first time to do this, what I have is this web.config serviceModel tag for the service:
<system.serviceModel>
<services>
<service name="RoleBasedServices.SecureServiceExternal" behaviorConfiguration="externalServiceBehavior">
<endpoint contract="AuthService.IService1" binding="wsHttpBinding" bindingConfiguration="wsHttpUsername" />
</service>
</services>
<bindings>
<wsHttpBinding>
<binding name="wsHttpUsername">
<security mode="Message">
<message clientCredentialType="UserName" negotiateServiceCredential="false" establishSecurityContext="false" />
</security>
</binding>
</wsHttpBinding>
</bindings>
<behaviors>
<serviceBehaviors>
<behavior>
<!--To avoid disclosing metadata information, set the values below to false before deployment-->
<serviceMetadata httpGetEnabled="true" httpsGetEnabled="true"/>
<!--To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information-->
<serviceDebug includeExceptionDetailInFaults="false"/>
</behavior>
<behavior name="externalServiceBehavior">
<serviceAuthorization principalPermissionMode="UseAspNetRoles" />
<serviceCredentials>
<userNameAuthentication userNamePasswordValidationMode="MembershipProvider" />
<serviceCertificate findValue="RPKey" x509FindType="FindBySubjectName" storeLocation="LocalMachine" storeName="My"/>
</serviceCredentials>
</behavior>
</serviceBehaviors>
</behaviors>
<protocolMapping>
<add binding="basicHttpsBinding" scheme="https" />
</protocolMapping>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
What I want to do is very simple, I don't know if I need all this tags I'm just trying.
What I want to do is from the client side to add reference for the service and first call the MyLogin:
AuthService.Service1Client s = new AuthService.Service1Client();
s.Login();
Then call the other restricted method and let it be GetData:
s.GetData()
At service side in Login method, and only for test purposes, I'm doing this:
public void Login()
{
Thread.CurrentPrincipal = new GenericPrincipal(new GenericIdentity("Bob"), new[] { "Admin" });
FormsAuthentication.SetAuthCookie("BobUserName", false);
}
An the restricted method will be:
[PrincipalPermission(SecurityAction.Demand, Role = "Admin")]
public void GetData()
{
return "Hello";
}
That all I have in service and client, what I'm missing?
Every time ,in debug, I check Thread.CurrentPrincipal in Login method I found Thread.CurrentPrincipal.Identity.IsAuthenticated equals true but even though when the client calls the GetData() method it's Access Denied.
PS: I'm using console application to do my tests does it make any difference ?
Thanks

Here is a very nice article that could possibly lead to a solution.
The general idea is that you have 2 object for the Principal.
HttpContext.Current.User and Thread.CurrentPrincipal. You are setting the Thread.CurrentPrincipal at the time HttpContext.Current.User is already instantiated and the role of it is left to default. You may want to try something like:
HttpContext.Current.User = new GenericPrincipal(new GenericIdentity("Bob"), new[] { "Admin" });

The reason calls to GetData() are denied is because WCF doesn't know anything about the Forms Authentication cookie that was set during Login().
It doesn't make a difference that you're a using console app. You could try the following approach.
Set the cookie in Login():
var cookie = FormsAuthentication.GetAuthCookie(username, true);
var ticket = FormsAuthentication.Decrypt(cookie.Value);
HttpContext.Current.User = new GenericPrincipal(new FormsIdentity(ticket), null);
FormsAuthentication.SetAuthCookie(HttpContext.Current.User.Identity.Name, true);
Then in your console app:
public static void TestLoginAndGetData()
{
var sharedCookie = string.Empty;
using (var client = new YourClient())
using (new OperationContextScope(client.InnerChannel))
{
client.Login("username", "password");
// get the cookie from the response
HttpResponseMessageProperty response = (HttpResponseMessageProperty)
OperationContext.Current.IncomingMessageProperties[
HttpResponseMessageProperty.Name];
sharedCookie = response.Headers["Set-Cookie"];
// add it to the request
HttpRequestMessageProperty request = new HttpRequestMessageProperty();
request.Headers["Cookie"] = sharedCookie;
OperationContext.Current.OutgoingMessageProperties[
HttpRequestMessageProperty.Name] = request;
var result = client.GetData();
Console.WriteLine(result);
}
}
You might also consider changing the return type of GetData() to string.

WCF POST method [duplicate]

This question already has answers here:
Why does my C# client, POSTing to my WCF REST service, return (400) Bad Request?
(3 answers)
Closed 8 years ago.
{"The remote server returned an error: (405) Method Not
Allowed}System.InvalidOperationException {System.Net.WebException}
Web Config:
<service name="Service" behaviorConfiguration="RestService">
<endpoint address="web" binding="webHttpBinding"
contract="IService" behaviorConfiguration="ServiceBehavior">
</endpoint>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="RestService">
<serviceMetadata httpGetEnabled="true" httpsGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="false" />
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="ServiceBehavior">
<webHttp />
</behavior>
</endpointBehaviors>
</behaviors>
<!--<protocolMapping>
<add binding="basicHttpsBinding" scheme="https"/>
</protocolMapping>-->
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true"/>
</system.serviceModel>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true"/>
<directoryBrowse enabled="true"/>
</system.webServer>
Service :
public test TestPost(test testPost)
{
test objtest1 = new test();
objtest1.Address = "Test";
objtest1.Name = "Welcome";
return objtest1;
}
[DataContract]
public class test
{
[DataMember(Order = 0)]
public string Name { get; set; }
[DataMember(Order = 1)]
public string Address { get; set; }
}
[OperationContract]
[WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.Bare,
RequestFormat = WebMessageFormat.Json,
ResponseFormat = WebMessageFormat.Json,
UriTemplate = "TestPost/")]
test TestPost(test i);
Using Fiddler:
POST /RESTfulService/Service.svc/web/TestPost/ HTTP/1.1
User-Agent: Fiddler
Host: localhost:50458
Content-Length: 43
HTTP/1.1 400 Bad Request
Server: ASP.NET Development Server/11.0.0.0
Date: Thu, 19 Dec 2013 07:19:44 GMT
X-AspNet-Version: 4.0.30319
Content-Length: 1647
Cache-Control: private
Content-Type: text/html
Connection: Close
GET Method is working fine, when i am trying to use POST method i am getting error

I have tried above example in my local and found that you are missing one http header called
Content-Type: application/json
Also be sure you pass right json string in request body
{"Name" : "test", "Address" : "test"}
above trick will help you to get rid of 400 bad request.

Binding in the client + WCF

I use visual studio 11 to add service (Add service Reference).
When I added the service Article, I have An articleClient with one constructor:
public RssArticleServiceClient(System.ServiceModel.Channels.Binding binding, System.ServiceModel.EndpointAddress remoteAddress) :
base(binding, remoteAddress) {
}
How can I use this constructor, i don't know which value of binding should I use??
Any example or sample please??
Merci
Best regards
I do this:
BasicHttpSecurityMode securitymode = BasicHttpSecurityMode.Transport; BasicHttpBinding binding = new BasicHttpBinding(securitymode); binding.MaxReceivedMessageSize = int.MaxValue; binding.MaxBufferSize = int.MaxValue; Uri uri = new Uri("adresse/RssArticleService.svc";); _clientArticles = new RssArticleServiceClient(binding, new EndpointAddress("adresse/RssArticleService.svc";)); var result=await _clientArticles.GetRssDataAsync("1", "fr");
And A cath this error:
**here was no endpoint listening at adresse/RssArticleService.svc that could accept the message. This is often caused by an incorrect address or SOAP**
What can i do, should i change the type of binding??

This is my implementation :
BasicHttpSecurityMode securitymode = HostSource.Scheme.Equals("https", StringComparison.InvariantCultureIgnoreCase) ? BasicHttpSecurityMode.Transport : BasicHttpSecurityMode.None;
BasicHttpBinding binding = new BasicHttpBinding(securitymode);
binding.MaxReceivedMessageSize = int.MaxValue;
binding.MaxBufferSize = int.MaxValue;
Uri uri = new Uri(Application.Current.Host.Source, "../service.svc");
_client = new RssArticleServiceClient(binding, new EndpointAddress(uri))
EDIT : you need to add this in your web.config :
<system.serviceModel>
<services>
<service name="namespace.RssArticleService"
behaviorConfiguration="RssArticleServiceBehavior">
<endpoint address=""
binding="basicHttpBinding"
contract="namespace.IRssArticleService"/>
</service>
</services>
<serviceBehaviors>
<behavior name="RssArticleServiceBehavior">
<serviceMetadata httpGetEnabled="true" httpsGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
</serviceBehaviors>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true"/>
</system.serviceModel>

Why doesn't my POST method work?

I have the WCF service contract:
[ServiceContract]
public interface IVLSContentService
{
[OperationContract]
[WebInvoke(Method = "GET", ResponseFormat = WebMessageFormat.Xml, UriTemplate = "GetCategoriesGET/{userIdArg}", BodyStyle = WebMessageBodyStyle.Bare)]
List<Video> GetVideosGET(string userIdArg);
[WebInvoke(Method = "POST",BodyStyle=WebMessageBodyStyle.Wrapped, UriTemplate = "submit")]
[OperationContract]
void SubmitVideoPOST(Video videoArg, string userId);
}
And I have the service that implements the contract:
public class VLSContentService : IVLSContentService
{
List<Video> catsForUser1 = new List<Video>();
List<Video> catsForUser2 = new List<Video>();
public List<Video> GetVideosGET(string userIdArg)
{
List<Video> catsToReturn = new List<Video>();
if (Int32.Parse(userIdArg) == 1)
{
catsToReturn = catsForUser1;
}
else if (Int32.Parse(userIdArg) == 2)
{
catsToReturn = catsForUser2;
}
return catsToReturn;
}
public void SubmitVideoPOST(Video videoArg, string userId)
{
int i = 0;
}
}
And I have the configuration:
<system.serviceModel>
<services>
<service behaviorConfiguration="VLSContentServiceBehaviour" name="VLSContentService">
<endpoint address="" behaviorConfiguration="VLSContentServiceEndpointBehaviour" binding="webHttpBinding" contract="IVLSContentService"/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="VLSContentServiceBehaviour">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="true"/>
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="VLSContentServiceEndpointBehaviour">
<webHttp/>
</behavior>
</endpointBehaviors>
</behaviors>
</system.serviceModel>
And I am trying to call the POST WCF operation with the following client code:
static void Main(string[] args)
{
WebChannelFactory<IVLSContentService> cs = new WebChannelFactory<IVLSContentService>(new Uri("http://localhost:52587/Api/Content/VLSContentService.svc/SubmitVideoPOST"));
IVLSContentService client = cs.CreateChannel();
Video videoToAdd = new Video("My First Video");
client.SubmitVideoPOST(videoToAdd,"1");
}
But im getting this error and I cant work out why:
There was no endpoint listening at
http://localhost:52587/Api/Content/VLSContentService.svc/SubmitVideoPOST/submit
that could accept the message. This is
often caused by an incorrect address
or SOAP action. See InnerException, if
present, for more details.
I know when I browse to the GET method in a URL and I pass the correct parameters I am getting xml back but my POST method just doesnt work. Ive copied the example from pluralsight the only difference is um trying to host the service in .svc file instead of service host application...
Can anybody point me in the right direction?

Looks like you have the address of the service wrong
You should be posting to http://localhost:52587/Api/Content/VLSContentService.svc/submit
The UriTemplate is relative to the address of the endpoint which is
http://localhost:52587/Api/Content/VLSContentService.svc
Change this line of code to
WebChannelFactory cs = new WebChannelFactory(new Uri("http://localhost:52587/Api/Content/VLSContentService.svc/"));

You appear to be posting to the wrong URL. The error shows you posting to the relative address "/SubmitVideoPOST/submit", but your UriTemplate for that method is just "/submit".
You do not need to include the .NET method name in the URL for REST based requests. Only the UriTemplate matters. Mapping to the correct runtime method is done for you by the WCF REST UriTemplate processing engine.