/// <summary>
/// Create a authorise token from the request. Returns the bdy html result.
/// </summary>
/// <param name="httpRequest">The current http request.</param>
/// <param name="rawUri">A System.Uri object containing information regarding the URL of the current request.</param>
/// <param name="queryString">The collection of HTTP query string variables.</param>
/// <param name="form">The collection of form variables.</param>
/// <param name="headers">The collection of HTTP headers.</param>
/// <param name="cookies">The collection of cookies sent by the client.</param>
/// <param name="returnType">The type of response to return.</param>
/// <param name="responseHeaders">The response headers for the request.</param>
/// <param name="isApprovedByUser">Has the user approved the client to access the resources.</param>
/// <returns>The formatted redirect url; else null.</returns>
private object CreateAuthorise(HttpRequestBase httpRequest, Uri rawUri, NameValueCollection queryString,
NameValueCollection form, NameValueCollection headers, HttpCookieCollection cookies, int returnType,
out System.Net.WebHeaderCollection responseHeaders, bool isApprovedByUser)
{
IDirectedProtocolMessage response = null;
OutgoingWebResponse webResponse = null;
string clientID = null;
string nonce = null;
string codeKey = null;
try
{
// Make sure that all the passed parameters are valid.
if (httpRequest == null)
{
throw new ArgumentNullException("httpRequest");
}
if (rawUri == null)
{
throw new ArgumentNullException("rawUri");
}
if (queryString == null)
{
throw new ArgumentNullException("queryString");
}
if (form == null)
{
throw new ArgumentNullException("form");
}
if (headers == null)
{
throw new ArgumentNullException("headers");
}
if (cookies == null)
{
throw new ArgumentNullException("cookies");
}
// Read the request make sure it is valid.
EndUserAuthorizationRequest pendingRequest = _authorizationServer.ReadAuthorizationRequest(httpRequest);
if (pendingRequest == null)
{
throw new Exception("Missing authorization request.");
}
// Only process if the user has approved the request.
if (isApprovedByUser)
{
// Make sure all maditor parameters are present.
_oAuthAuthorizationServer.ValidateAuthoriseRequestParametersAbsent(queryString);
if (_oAuthAuthorizationServer.ParametersAbsent.Count() > 0)
{
throw new Exception("Some authorisation request parameters are missing.");
}
// Assign each query string parameter.
clientID = pendingRequest.ClientIdentifier;
string callback = pendingRequest.Callback.ToString();
string state = pendingRequest.ClientState;
string scope = OAuthUtilities.JoinScopes(pendingRequest.Scope);
string responseType = (pendingRequest.ResponseType == EndUserAuthorizationResponseType.AccessToken ? "token" : "code");
string companyUniqueUserID = queryString["com_unique_uid"];
// Set the crytography key store values.
_authorizationServer.AuthorizationServerServices.CryptoKeyStore.ExpiryDateTime = DateTime.UtcNow.AddYears(1);
_authorizationServer.AuthorizationServerServices.CryptoKeyStore.ClientIndetifier = clientID;
_authorizationServer.AuthorizationServerServices.CryptoKeyStore.GetCodeKey = false;
// Create a new nonce and store it in the nonce store.
nonce = _nonceStore.GenerateNonce();
_nonceStore.StoreNonce(DateTime.UtcNow, nonce, clientID);
// Create the access token from the stores, and create a new verification code.
string verifier = _consumerStore.SetVerificationCode(clientID, nonce, companyUniqueUserID, scope);
EndUserAuthorizationSuccessAccessTokenResponse successAccessTokenResponse = null;
// Prepare the request. pass the nonce and join the userID and nonce of
// the user that approved the resource access request.
response = _authorizationServer.PrepareApproveAuthorizationRequest(
pendingRequest,
companyUniqueUserID + "_" + nonce,
nonce,
out successAccessTokenResponse);
// Prepare the authorisation response.
webResponse = _authorizationServer.Channel.PrepareResponse(response);
// Create the query collection of the code request
// and extract the code value that is to be sent
// the the client.
NameValueCollection queryResponseString = new NameValueCollection();
Uri uriRequest = webResponse.GetDirectUriRequest(_authorizationServer.Channel);
// For each query item.
string[] queries = uriRequest.Query.Split(new char[] { '&' });
foreach (string query in queries)
{
// Add the query name and value to the collection.
string[] queriesNameValue = query.Split(new char[] { '=' });
queryResponseString.Add(queriesNameValue[0].TrimStart(new char[] { '?' }), queriesNameValue[1]);
}
// What type of response is to be handled.
switch (pendingRequest.ResponseType)
{
case EndUserAuthorizationResponseType.AuthorizationCode:
// The user has requested a code, this is
// used so the client can get a token later.
// If the code response type exits.
if (queryResponseString["code"] != null)
{
codeKey = HttpUtility.UrlDecode(queryResponseString["code"]);
}
// Insert the code key (code or token);
if (!String.IsNullOrEmpty(codeKey))
{
_tokenStore.StoreCodeKey(clientID, nonce, codeKey);
}
break;
case EndUserAuthorizationResponseType.AccessToken:
// This is used so the client is approved and a token is sent back.
// Update the access token.
if (successAccessTokenResponse != null)
{
if (!String.IsNullOrEmpty(successAccessTokenResponse.AccessToken))
{
_tokenStore.UpdateAccessToken(successAccessTokenResponse.AccessToken, nonce);
}
}
break;
}
}
else
{
// Send an error response.
response = _authorizationServer.PrepareRejectAuthorizationRequest(pendingRequest);
}
// What type should be returned.
switch (returnType)
{
case 0:
// A URI request redirect only.
responseHeaders = webResponse.Headers;
return(webResponse.GetDirectUriRequest(_authorizationServer.Channel));
case 1:
// The complete html body.
responseHeaders = webResponse.Headers;
return(webResponse.Body);
default:
// Default is the complete html body.
responseHeaders = webResponse.Headers;
return(webResponse.Body);
}
}
catch (Exception ex)
{
// Get the current token errors.
responseHeaders = null;
_tokenError = ex.Message;
return(null);
}
}
/// <summary>
/// Create a authorise token from the request.
/// </summary>
/// <param name="rawUri">A System.Uri object containing information regarding the URL of the current request.</param>
/// <param name="queryString">The collection of HTTP query string variables.</param>
/// <param name="form">The collection of form variables.</param>
/// <param name="headers">The collection of HTTP headers.</param>
/// <param name="cookies">The collection of cookies sent by the client.</param>
/// <param name="isApprovedByUser">Has the user approved the client to access the resources.</param>
/// <returns>The formatted redirect url; else null.</returns>
public string CreateAuthoriseToken(Uri rawUri, NameValueCollection queryString,
NameValueCollection form, NameValueCollection headers, HttpCookieCollection cookies, bool isApprovedByUser = false)
{
try
{
// Make sure that all the passed parameters are valid.
if (rawUri == null)
{
throw new ArgumentNullException("rawUri");
}
if (queryString == null)
{
throw new ArgumentNullException("queryString");
}
if (form == null)
{
throw new ArgumentNullException("form");
}
if (headers == null)
{
throw new ArgumentNullException("headers");
}
if (cookies == null)
{
throw new ArgumentNullException("cookies");
}
// Only process if the user has approved the request.
if (isApprovedByUser)
{
// Make sure that all the maditory OAuth parameters
// have been passed to the provider from the consumer
OAuthProblemReport validate = new OAuthProblemReport(queryString);
validate.ValidateAuthoriseParametersAbsent(queryString);
string validationError = validate.ToString();
// If any of the maditory OAuth parameters are missing.
if (!String.IsNullOrEmpty(validationError))
{
throw new OAuthException(OAuthProblemParameters.ParameterAbsent, "Absent Parameters", new Exception(validationError));
}
// Create an assign each manditory parameter.
IOAuthContext context = new OAuthContextProvider();
context.RawUri = rawUri;
context.RequestMethod = "GET";
context.Headers = headers;
context.QueryParameters = queryString;
context.FormEncodedParameters = form;
context.Token = queryString[Parameters.OAuth_Token];
context.CallbackUrl = queryString[Parameters.OAuth_Callback];
string companyUniqueUserID = queryString[Parameters.Company_Unique_User_Identifier];
// Assign each optional parameter
GetOptionalAuthoriseParameters(context, queryString);
// Create a new OAuth provider.
_oAuthProvider = new OAuthProvider(_tokenStore,
new NonceStoreInspector(_nonceStore),
new TimestampRangeInspector(new TimeSpan(1, 0, 0)),
new ConsumerValidationInspector(_consumerStore),
new XAuthValidationInspector(ValidateXAuthMode, AuthenticateXAuthUsernameAndPassword));
// Create the access token from the stores, and create a new verification code.
string verifier = _consumerStore.SetVerificationCode(context, companyUniqueUserID);
IToken token = _oAuthProvider.CreateAccessToken(context);
// Create the parameter response.
NameValueCollection parameters = new NameValueCollection();
parameters[Parameters.OAuth_Token] = token.Token;
parameters[Parameters.OAuth_Verifier] = verifier;
// Return the token callback query string..
return(context.CallbackUrl + "?" + UriUtility.FormatQueryString(parameters));
}
else
{
throw new OAuthException(OAuthProblemParameters.PermissionDenied, "Authorisation Denied", new Exception("User has denied access"));
}
}
catch (OAuthException aex)
{
// Get the current token errors.
_tokenError = aex.Report.ToString();
return(null);
}
catch (Exception ex)
{
// Transform the execption.
OAuthException OAuthException =
new OAuthException(OAuthProblemParameters.ParameterRejected, ex.Message, ex);
// Get the current token errors.
_tokenError = OAuthException.Report.ToString();
return(null);
}
}