public virtual Task Authenticated(DropboxAuthenticatedContext context)
{
return(OnAuthenticated(context));
}
protected override async Task <AuthenticationTicket> AuthenticateCoreAsync()
{
_logger.WriteVerbose("AuthenticateCoreAsync");
AuthenticationProperties properties = null;
try
{
string code = null;
string state = null;
var query = Request.Query;
var values = query.GetValues("code");
if (values != null && values.Count == 1)
{
code = values[0];
}
values = query.GetValues("state");
if (values != null && values.Count == 1)
{
state = values[0];
}
properties = Options.StateDataFormat.Unprotect(state);
if (properties == null)
{
return(null);
}
var redirectUri = string.Format("{0}://{1}{2}{3}",
Request.Scheme, Request.Host, RequestPathBase, Options.ReturnEndpointPath);
var tokenRequestParameters = new List <KeyValuePair <string, string> >
{
new KeyValuePair <string, string>("code", code),
new KeyValuePair <string, string>("grant_type", "authorization_code"),
new KeyValuePair <string, string>("client_id", Options.ClientId),
new KeyValuePair <string, string>("client_secret", Options.ClientSecret),
new KeyValuePair <string, string>("redirect_uri", redirectUri),
};
var requestContent = new FormUrlEncodedContent(tokenRequestParameters);
var response =
await _httpClient.PostAsync(TokenUri, requestContent, Request.CallCancelled);
response.EnsureSuccessStatusCode();
var oauthTokenResponse = await response.Content.ReadAsStringAsync();
var oauth2Token = JObject.Parse(oauthTokenResponse);
var accessToken = oauth2Token["access_token"].Value <string>();
if (string.IsNullOrWhiteSpace(accessToken))
{
_logger.WriteWarning("Access token was not found");
return(new AuthenticationTicket(null, properties));
}
var testUri = AccountUri + "?access_token=" + Uri.EscapeDataString(accessToken) +
"&oauth_token=" + Options.ClientSecret + "&oauth_consumer_key=" + Options.ClientId;
var graphResponse = await _httpClient.GetAsync(testUri, Request.CallCancelled);
graphResponse.EnsureSuccessStatusCode();
var accountString = await graphResponse.Content.ReadAsStringAsync();
var accountInformation = JObject.Parse(accountString);
var context = new DropboxAuthenticatedContext(Context, accountInformation, accessToken);
context.Identity = new ClaimsIdentity(
new[]
{
new Claim(ClaimTypes.NameIdentifier, context.Uid, Schema, Options.AuthenticationType),
new Claim(ClaimTypes.Name, context.DisplayName, Schema, Options.AuthenticationType),
new Claim("urn:dropbox:uid", context.Uid, Schema, Options.AuthenticationType),
new Claim("urn:dropbox:name", context.DisplayName, Schema, Options.AuthenticationType)
},
Options.AuthenticationType,
ClaimsIdentity.DefaultNameClaimType,
ClaimsIdentity.DefaultRoleClaimType);
await Options.Provider.Authenticated(context);
properties.RedirectUrl = Helpers.ReturnUri;
context.Properties = properties;
return(new AuthenticationTicket(context.Identity, context.Properties));
}
catch (Exception ex)
{
_logger.WriteWarning("Authentication failed", ex);
return(new AuthenticationTicket(null, properties));
}
}
