180 lines
7.8 KiB
C#
180 lines
7.8 KiB
C#
// (c) Copyright Ascensio System SIA 2010-2022
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//
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// This program is a free software product.
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// You can redistribute it and/or modify it under the terms
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// of the GNU Affero General Public License (AGPL) version 3 as published by the Free Software
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// Foundation. In accordance with Section 7(a) of the GNU AGPL its Section 15 shall be amended
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// to the effect that Ascensio System SIA expressly excludes the warranty of non-infringement of
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// any third-party rights.
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//
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// This program is distributed WITHOUT ANY WARRANTY, without even the implied warranty
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// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For details, see
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// the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
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//
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// You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia, EU, LV-1021.
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//
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// The interactive user interfaces in modified source and object code versions of the Program must
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// display Appropriate Legal Notices, as required under Section 5 of the GNU AGPL version 3.
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//
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// Pursuant to Section 7(b) of the License you must retain the original Product logo when
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// distributing the program. Pursuant to Section 7(e) we decline to grant you any rights under
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// trademark law for use of our trademarks.
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//
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// All the Product's GUI elements, including illustrations and icon sets, as well as technical writing
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// content are licensed under the terms of the Creative Commons Attribution-ShareAlike 4.0
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// International. See the License terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
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namespace ASC.FederatedLogin.LoginProviders;
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[Scope]
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public class GoogleLoginProvider : BaseLoginProvider<GoogleLoginProvider>
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{
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public const string GoogleScopeContacts = "https://www.googleapis.com/auth/contacts.readonly";
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public const string GoogleScopeDrive = "https://www.googleapis.com/auth/drive";
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//https://developers.google.com/gmail/imap/xoauth2-protocol
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public const string GoogleScopeMail = "https://mail.google.com/";
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public const string GoogleUrlContacts = "https://www.google.com/m8/feeds/contacts/default/full/";
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public const string GoogleUrlFile = "https://www.googleapis.com/drive/v3/files/";
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public const string GoogleUrlFileUpload = "https://www.googleapis.com/upload/drive/v3/files";
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public const string GoogleUrlProfile = "https://people.googleapis.com/v1/people/me";
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public override string AccessTokenUrl => "https://www.googleapis.com/oauth2/v4/token";
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public override string CodeUrl => "https://accounts.google.com/o/oauth2/v2/auth";
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public override string RedirectUri => this["googleRedirectUrl"];
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public override string ClientID => this["googleClientId"];
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public override string ClientSecret => this["googleClientSecret"];
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public override string Scopes => "https://www.googleapis.com/auth/userinfo.profile https://www.googleapis.com/auth/userinfo.email";
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public static readonly string[] GoogleDriveExt = new[] { ".gdoc", ".gsheet", ".gslides", ".gdraw" };
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public static readonly string GoogleDriveMimeTypeFolder = "application/vnd.google-apps.folder";
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public static readonly string FilesFields = "id,name,mimeType,parents,createdTime,modifiedTime,owners/displayName,lastModifyingUser/displayName,capabilities/canEdit,size";
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public static readonly string ProfileFields = "emailAddresses,genders,names";
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private readonly RequestHelper _requestHelper;
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public GoogleLoginProvider() { }
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public GoogleLoginProvider(
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OAuth20TokenHelper oAuth20TokenHelper,
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TenantManager tenantManager,
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CoreBaseSettings coreBaseSettings,
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CoreSettings coreSettings,
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IConfiguration configuration,
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ICacheNotify<ConsumerCacheItem> cache,
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ConsumerFactory consumerFactory,
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Signature signature,
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InstanceCrypto instanceCrypto,
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RequestHelper requestHelper,
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string name, int order, Dictionary<string, string> props, Dictionary<string, string> additional = null)
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: base(oAuth20TokenHelper, tenantManager, coreBaseSettings, coreSettings, configuration, cache, consumerFactory, signature, instanceCrypto, name, order, props, additional)
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{
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_requestHelper = requestHelper;
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}
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public override LoginProfile GetLoginProfile(string accessToken)
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{
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if (string.IsNullOrEmpty(accessToken))
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{
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throw new Exception("Login failed");
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}
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return RequestProfile(accessToken);
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}
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public OAuth20Token Auth(HttpContext context)
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{
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return Auth(context, GoogleScopeContacts, out var _, (context.Request.Query["access_type"].ToString() ?? "") == "offline"
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? new Dictionary<string, string>
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{
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{ "access_type", "offline" },
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{ "prompt", "consent" }
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}
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: null);
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}
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private LoginProfile RequestProfile(string accessToken)
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{
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var googleProfile = _requestHelper.PerformRequest(GoogleUrlProfile + "?personFields=" + HttpUtility.UrlEncode(ProfileFields), headers: new Dictionary<string, string> { { "Authorization", "Bearer " + accessToken } });
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var loginProfile = ProfileFromGoogle(googleProfile);
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return loginProfile;
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}
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private LoginProfile ProfileFromGoogle(string googleProfile)
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{
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var jProfile = JObject.Parse(googleProfile);
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if (jProfile == null)
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{
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throw new Exception("Failed to correctly process the response");
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}
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var profile = new LoginProfile(Signature, InstanceCrypto)
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{
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Id = jProfile.Value<string>("resourceName").Replace("people/", ""),
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Provider = ProviderConstants.Google,
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};
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var emailsArr = jProfile.Value<JArray>("emailAddresses");
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if (emailsArr != null)
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{
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var emailsList = emailsArr.ToObject<List<GoogleEmailAddress>>();
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if (emailsList.Count > 0)
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{
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var ind = emailsList.FindIndex(googleEmail => googleEmail.Metadata.Primary);
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profile.EMail = emailsList[ind > -1 ? ind : 0].Value;
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}
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}
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var namesArr = jProfile.Value<JArray>("names");
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if (namesArr != null)
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{
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var namesList = namesArr.ToObject<List<GoogleName>>();
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if (namesList.Count > 0)
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{
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var ind = namesList.FindIndex(googleName => googleName.Metadata.Primary);
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var name = namesList[ind > -1 ? ind : 0];
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profile.DisplayName = name.DisplayName;
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profile.FirstName = name.GivenName;
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profile.LastName = name.FamilyName;
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}
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}
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var gendersArr = jProfile.Value<JArray>("genders");
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if (gendersArr != null)
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{
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var gendersList = gendersArr.ToObject<List<GoogleGender>>();
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if (gendersList.Count > 0)
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{
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var ind = gendersList.FindIndex(googleGender => googleGender.Metadata.Primary);
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profile.Gender = gendersList[ind > -1 ? ind : 0].Value;
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}
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}
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return profile;
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}
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private class GoogleEmailAddress
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{
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public GoogleMetadata Metadata { get; set; } = new GoogleMetadata();
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public string Value { get; set; }
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}
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private class GoogleGender
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{
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public GoogleMetadata Metadata { get; set; } = new GoogleMetadata();
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public string Value { get; set; }
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}
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private class GoogleName
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{
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public GoogleMetadata Metadata { get; set; } = new GoogleMetadata();
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public string DisplayName { get; set; }
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public string FamilyName { get; set; }
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public string GivenName { get; set; }
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}
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private class GoogleMetadata
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{
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public bool Primary { get; set; }
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}
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}
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