Has anybody implemented 2 Legged OAuth using DNOA?
I am trying to create an Authentication Module in CSharp where I need to verify the Signature from the request using DotNe开发者_StackOverflowtOpenAuth(DNOA) Library for 2 Legged OAuth which only has consumer Key and a Secret.
If you have any sample implementation of 2 Legged OAuth using DNOA that would be helpful. If not, any ideas on how to implement would work too. Any help would be much appreciated.
I wasn't able to get DNOA to work with 2-legged OAuth so I ended up making my own consumer using http://oauth.googlecode.com/svn/code/csharp/OAuthBase.cs as my base class to handle the signature signing. All you need to do is subclass it and use the signature methods to build the http authorization header...
string sigMethodType = GetSigMethodType();
string ts, nonce, normalizedUrl, normalizedParams;
string sig = GenerateSignature(new Uri("http://some-endpoint-to-call"), "GET", out nonce, out ts, out normalizedUrl, out normalizedParams);
string header = "OAuth realm=\"" + normalizedUrl + "\"," +
OAuthConsumerKeyKey + "=\"" + ConsumerKey + "\"," +
OAuthSignatureMethodKey + "=\"" + "HMACSHA1SignatureType" + "\"," +
OAuthSignatureKey + "=\"" + sig + "\"," +
OAuthTimestampKey + "=\"" + ts + "\"," +
OAuthTokenKey + "=\"" + String.Empty + "\"," +
OAuthNonceKey + "=\"" + nonce + "\"," +
OAuthVersionKey + "=\"" + OAuthVersion + "\"";
Once you have the authorization header just build your web request and send it...
var wr = (HttpWebRequest)HttpWebRequest.Create(messageEndpoint.Location);
wr.Headers.Add(HttpRequestHeader.Authorization, BuildAuthHeader(messageEndpoint));
wr.ContentType = messageEndpoint.ContentType;
wr.Method = CdwHttpMethods.Verbs[messageEndpoint.HttpMethod];
using (var resp = (HttpWebResponse)req.GetResponse())
{
switch (resp.StatusCode)
{
case HttpStatusCode.Unauthorized:
Assert.Fail("OAuth authorization failed");
break;
case HttpStatusCode.OK:
using (var stream = resp.GetResponseStream())
{
using (var sr = new StreamReader(stream))
{
var respString = sr.ReadToEnd();
}
}
break;
}
}
Update: I was also able to get 2-legged to work with devdefined's oauth consumer. http://code.google.com/p/devdefined-tools/wiki/OAuthConsumer
var endPoint = new Uri("http://example.com/restendpoint.svc");
var ctx = new OAuthConsumerContext
{
ConsumerKey = "consumerkey1",
ConsumerSecret = "consumersecret1",
SignatureMethod = SignatureMethod.HmacSha1
};
var session = new OAuthSession(ctx, endPoint, endPoint, endPoint);
var respText = session.Request().Get().ForUri(endPoint).ToString();
It would be nice if it had an empty constructor or an overload that just takes in the context, but this seems to work.
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