src/Tizen.Account.OAuth2/Tizen.Account.OAuth2/ResourceOwnerPwdCredentialsAuthorizer.cs

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the License);
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an AS IS BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 using System;
  18 using System.Collections.Generic;
  19 using System.Runtime.InteropServices;
  20 using System.Threading.Tasks;
  21
  22 namespace Tizen.Account.OAuth2
  23 {
  24     /// <summary>
  25     /// The ResourceOwnerPwdCredentialsAuthorizer is used to obtain access tokens using Resource Owner Password Credentials Grant flow as described at https://tools.ietf.org/html/rfc6749#section-4.3
  26     /// </summary>
  27     /// <since_tizen> 3 </since_tizen>
  28     public class ResourceOwnerPwdCredentialsAuthorizer : Authorizer
  29     {
  30         /// <summary>
  31         /// The constructor
  32         /// </summary>
  33         /// <since_tizen> 3 </since_tizen>
  34         public ResourceOwnerPwdCredentialsAuthorizer()
  35         {
  36
  37         }
  38
  39         /// <summary>
  40         /// Authorization not supported through this API for this flow.
  41         /// </summary>
  42         /// <since_tizen> 3 </since_tizen>
  43         /// <exception cref="InvalidOperationException">Thrown when the operation is not supported</exception>
  44         public override Task<AuthorizationResponse> AuthorizeAsync(AuthorizationRequest request)
  45         {
  46             Log.Error(ErrorFactory.LogTag, "Authorization is not supported in this flow");
  47             throw new InvalidOperationException();
  48         }
  49
  50         /// <summary>
  51         /// Retrieves access token by sending resource owner's password credentials.
  52         /// The authroization request parameters should be as defined in https://tools.ietf.org/html/rfc6749#section-4.3.2
  53         /// </summary>
  54         /// <since_tizen> 3 </since_tizen>
  55         /// <param name="request">The token request <see cref="ResourceOwnerPwdCredentialsTokenRequest"/></param>
  56         /// <returns>The response containing access token.</returns>
  57         /// <privilege>http://tizen.org/privilege/internet</privilege>
  58         /// <exception cref="ArgumentException">Thrown when method failed due to invalid argumets</exception>
  59         /// <exception cref="OAuth2Exception">Thrown when method fails due to server error</exception>
  60         public override async Task<TokenResponse> GetAccessTokenAsync(TokenRequest request)
  61         {
  62             IntPtr requestHandle = GetRequestHandle(request as ResourceOwnerPwdCredentialsTokenRequest);
  63             return await Task.Run(() => GetAccessToken(requestHandle));
  64         }
  65
  66         // Fill device request handle for access token
  67         private IntPtr GetRequestHandle(ResourceOwnerPwdCredentialsTokenRequest request)
  68         {
  69             if (request == null)
  70             {
  71                 Log.Error(ErrorFactory.LogTag, "Invalid request or request is null");
  72                 throw ErrorFactory.GetException((int)OAuth2Error.InvalidParameter);
  73             }
  74
  75             IntPtr requestHandle;
  76             int ret = Interop.Request.Create(out requestHandle);
  77             if (ret != (int)OAuth2Error.None)
  78             {
  79                 Log.Error(ErrorFactory.LogTag, "Interop failed");
  80                 throw ErrorFactory.GetException(ret);
  81             }
  82
  83             ret = Interop.Request.SetTokenEndPointUrl(requestHandle, request.TokenEndpoint.ToString());
  84             if (ret != (int)OAuth2Error.None)
  85             {
  86                 Log.Error(ErrorFactory.LogTag, "Interop failed");
  87                 throw ErrorFactory.GetException(ret);
  88             }
  89
  90             ret = Interop.Request.SetRedirectionUrl(requestHandle, request.RedirectionEndPoint.ToString());
  91             if (ret != (int)OAuth2Error.None)
  92             {
  93                 Log.Error(ErrorFactory.LogTag, "Interop failed");
  94                 throw ErrorFactory.GetException(ret);
  95             }
  96
  97             ret = Interop.Request.SetGrantType(requestHandle, Interop.GrantType.Password);
  98             if (ret != (int)OAuth2Error.None)
  99             {
 100                 Log.Error(ErrorFactory.LogTag, "Interop failed");
 101                 throw ErrorFactory.GetException(ret);
 102             }
 103
 104             ret = Interop.Request.SetUserName(requestHandle, request.Username);
 105             if (ret != (int)OAuth2Error.None)
 106             {
 107                 Log.Error(ErrorFactory.LogTag, "Interop failed");
 108                 throw ErrorFactory.GetException(ret);
 109             }
 110
 111             ret = Interop.Request.SetPassword(requestHandle, request.Password);
 112             if (ret != (int)OAuth2Error.None)
 113             {
 114                 Log.Error(ErrorFactory.LogTag, "Interop failed");
 115                 throw ErrorFactory.GetException(ret);
 116             }
 117
 118             if (request.ClientSecrets.Id != null)
 119             {
 120                 ret = Interop.Request.SetClientId(requestHandle, request.ClientSecrets.Id);
 121                 if (ret != (int)OAuth2Error.None)
 122                 {
 123                     Log.Error(ErrorFactory.LogTag, "Interop failed");
 124                     throw ErrorFactory.GetException(ret);
 125                 }
 126             }
 127
 128             if (request.ClientSecrets.Secret != null)
 129             {
 130                 ret = Interop.Request.SetClientSecret(requestHandle, request.ClientSecrets.Secret);
 131                 if (ret != (int)OAuth2Error.None)
 132                 {
 133                     Log.Error(ErrorFactory.LogTag, "Interop failed");
 134                     throw ErrorFactory.GetException(ret);
 135                 }
 136             }
 137
 138             if (request.Scopes != null)
 139             {
 140                 string scope = string.Join(" ", request.Scopes);
 141                 ret = Interop.Request.SetScope(requestHandle, scope);
 142                 if (ret != (int)OAuth2Error.None)
 143                 {
 144                     Log.Error(ErrorFactory.LogTag, "Interop failed");
 145                     throw ErrorFactory.GetException(ret);
 146                 }
 147             }
 148
 149             if (request.CustomData != null)
 150             {
 151                 foreach (var item in request.CustomData)
 152                 {
 153                     ret = Interop.Request.AddCustomData(requestHandle, item.Key, item.Value);
 154                     if (ret != (int)OAuth2Error.None)
 155                     {
 156                         Log.Error(ErrorFactory.LogTag, "Interop failed");
 157                         throw ErrorFactory.GetException(ret);
 158                     }
 159                 }
 160             }
 161
 162             if (request.State != null)
 163             {
 164                 ret = Interop.Request.SetState(requestHandle, request.State);
 165                 if (ret != (int)OAuth2Error.None)
 166                 {
 167                     Log.Error(ErrorFactory.LogTag, "Interop failed");
 168                     throw ErrorFactory.GetException(ret);
 169                 }
 170             }
 171
 172             ret = Interop.Request.SetClientAuthenticationType(requestHandle, (int)request.AuthenticationScheme);
 173             if (ret != (int)OAuth2Error.None)
 174             {
 175                 Log.Error(ErrorFactory.LogTag, "Interop failed");
 176                 throw ErrorFactory.GetException(ret);
 177             }
 178
 179             return requestHandle;
 180         }
 181     }
 182 }