Do you have any idea how I can use, an access_token generated by the default asp.net web api 2 OAuth 2 authorization mechanism, in the url parameters. Currently I am able to authorize successfully by sending a request with Authorization header like this:
Accept: application/json
Content-Type: application/json
Authorization: Bearer pADKsjwMv927u...
What I want is to enable the authorization through URL parameter like this:
https://www.domain.com/api/MyController?access_token=pADKsjwMv927u...
Well - I agree that the header is a much better alternative - but there are of course situations where the query string is needed. The OAuth2 spec defines it as well.
Anyways - this feature is built into the Katana OAuth2 middleware:
public class QueryStringOAuthBearerProvider : OAuthBearerAuthenticationProvider
{
readonly string _name;
public QueryStringOAuthBearerProvider(string name)
{
_name = name;
}
public override Task RequestToken(OAuthRequestTokenContext context)
{
var value = context.Request.Query.Get(_name);
if (!string.IsNullOrEmpty(value))
{
context.Token = value;
}
return Task.FromResult<object>(null);
}
}
And then:
var options = new JwtBearerAuthenticationOptions
{
AllowedAudiences = new[] { audience },
IssuerSecurityTokenProviders = new[]
{
new SymmetricKeyIssuerSecurityTokenProvider(
issuer,
signingKey)
},
Provider = new QueryStringOAuthBearerProvider(“access_token”)
};
So, go to Global.asax and add this method:
void Application_BeginRequest(object sender, EventArgs e)
{
if (ReferenceEquals(null, HttpContext.Current.Request.Headers["Authorization"]))
{
var token = HttpContext.Current.Request.Params["access_token"];
if (!String.IsNullOrEmpty(token))
{
HttpContext.Current.Request.Headers.Add("Authorization", "Bearer " + token);
}
}
}
UPDATE: Check out @leastprivilege answer. Much better solution.
This is a terrible idea because the token is not protected in the query string. It is encrypted in the header with SSL.
