protected override async Task <AuthenticationTicket> AuthenticateCoreAsync()
{
AuthenticationProperties properties = null;
try
{
string code = null;
var query = Request.Query;
var values = query.GetValues("code");
if (values != null && values.Count == 1)
{
code = values[0];
}
// Bitbucket doesn't include a state parameter in the callback url, so we need to retrieve a few things required for OWIN
properties = new AuthenticationProperties
{
RedirectUri = Context.Request.Cookies[AuthenticatedReturnUrlKey]
};
var xsrfId = Context.Request.Cookies[XsrfIdKey];
if (xsrfId != null)
{
properties.Dictionary.Add(XsrfIdKey, xsrfId);
}
properties.Dictionary.Add(CorrelationIdKey, Context.Request.Cookies[CorrelationIdKey]);
// OAuth2 10.12 CSRF
if (!ValidateCorrelationId(properties, _logger))
{
return(new AuthenticationTicket(null, properties));
}
// clean up cookies
Context.Response.Cookies.Delete(XsrfIdKey);
Context.Response.Cookies.Delete(CorrelationIdKey);
Context.Response.Cookies.Delete(AuthenticatedReturnUrlKey);
var requestPrefix = Request.Scheme + "://" + Request.Host;
var redirectUri = requestPrefix + Request.PathBase + Options.CallbackPath;
// Build up the body for the token request
// ReSharper disable once CommentTypo
// https://confluence.atlassian.com/bitbucket/oauth-on-bitbucket-cloud-238027431.html#OAuthonBitbucketCloud-Authorizationcodegrant
// curl -X POST -u "client_id:secret" https://bitbucket.org/site/oauth2/access_token -d grant_type=authorization_code -d code={code}
var body = new List <KeyValuePair <string, string> >
{
new KeyValuePair <string, string>("code", code),
new KeyValuePair <string, string>("grant_type", "authorization_code"),
new KeyValuePair <string, string>("redirect_uri", redirectUri)
};
// Request the token
var requestMessage = new HttpRequestMessage(HttpMethod.Post, Options.Endpoints.TokenEndpoint);
requestMessage.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
requestMessage.Headers.Authorization = new AuthenticationHeaderValue(
"Basic",
Convert.ToBase64String(
System.Text.Encoding.ASCII.GetBytes(
$"{Options.ClientId}:{Options.ClientSecret}")));
requestMessage.Content = new FormUrlEncodedContent(body);
var tokenResponse = await _httpClient.SendAsync(requestMessage);
tokenResponse.EnsureSuccessStatusCode();
var text = await tokenResponse.Content.ReadAsStringAsync();
// Deserializes the token response
dynamic response = JsonConvert.DeserializeObject <dynamic>(text);
var accessToken = (string)response.access_token;
// Get the Bitbucket user
var userRequest = new HttpRequestMessage(HttpMethod.Get, Options.Endpoints.UserInfoEndpoint);
userRequest.Headers.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);
userRequest.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
var userResponse = await _httpClient.SendAsync(userRequest, Request.CallCancelled);
userResponse.EnsureSuccessStatusCode();
text = await userResponse.Content.ReadAsStringAsync();
var user = JObject.Parse(text);
var context = new BitbucketAuthenticatedContext(Context, user, accessToken)
{
Identity = new ClaimsIdentity(
Options.AuthenticationType,
ClaimsIdentity.DefaultNameClaimType,
ClaimsIdentity.DefaultRoleClaimType)
};
if (!string.IsNullOrEmpty(context.Id))
{
context.Identity.AddClaim(new Claim(ClaimTypes.NameIdentifier, context.Id, XmlSchemaString, Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.UserName))
{
context.Identity.AddClaim(new Claim(ClaimsIdentity.DefaultNameClaimType, context.UserName, XmlSchemaString, Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.Email))
{
context.Identity.AddClaim(new Claim(ClaimTypes.Email, context.Email, XmlSchemaString, Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.Name))
{
context.Identity.AddClaim(new Claim("urn:bitbucket:name", context.Name, XmlSchemaString, Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.Link))
{
context.Identity.AddClaim(new Claim("urn:bitbucket:url", context.Link, XmlSchemaString, Options.AuthenticationType));
}
context.Properties = properties;
await Options.Provider.Authenticated(context);
return(new AuthenticationTicket(context.Identity, context.Properties));
}
catch (Exception ex)
{
_logger.WriteError(ex.Message);
}
return(new AuthenticationTicket(null, properties));
}
/// <summary>
/// Invoked whenever GitHub succesfully authenticates a user
/// </summary>
/// <param name="context">Contains information about the login session as well as the user <see cref="System.Security.Claims.ClaimsIdentity"/>.</param>
/// <returns>A <see cref="Task"/> representing the completed operation.</returns>
public virtual Task Authenticated(BitbucketAuthenticatedContext context)
{
return(OnAuthenticated(context));
}
/// <summary>
/// Invoked whenever GitHub successfully authenticates a user
/// </summary>
/// <param name="context">Contains information about the login session as well as the user <see cref="System.Security.Claims.ClaimsIdentity"/>.</param>
/// <returns>A <see cref="Task"/> representing the completed operation.</returns>
public virtual Task Authenticated(BitbucketAuthenticatedContext context)
{
return OnAuthenticated(context);
}