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155 lines
No EOL
5.6 KiB
C#
155 lines
No EOL
5.6 KiB
C#
#region License Information (GPL v3)
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/*
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ShareX - A program that allows you to take screenshots and share any file type
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Copyright (c) 2007-2020 ShareX Team
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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Optionally you can also view the license at <http://www.gnu.org/licenses/>.
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*/
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#endregion License Information (GPL v3)
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using Newtonsoft.Json;
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using ShareX.HelpersLib;
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using System.Collections.Generic;
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using System.Collections.Specialized;
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namespace ShareX.UploadersLib
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{
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public class GoogleOAuth2 : IOAuth2
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{
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private const string AuthorizationEndpoint = "https://accounts.google.com/o/oauth2/v2/auth";
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private const string TokenEndpoint = "https://oauth2.googleapis.com/token";
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private const string UserInfoEndpoint = "https://www.googleapis.com/oauth2/v3/userinfo";
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private const string RedirectMethod = "urn:ietf:wg:oauth:2.0:oob"; // Manual copy-paste method
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public OAuth2Info AuthInfo { get; private set; }
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private Uploader GoogleUploader { get; set; }
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public string Scope { get; set; }
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public GoogleOAuth2(OAuth2Info oauth, Uploader uploader)
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{
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AuthInfo = oauth;
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GoogleUploader = uploader;
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}
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public string GetAuthorizationURL()
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{
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Dictionary<string, string> args = new Dictionary<string, string>();
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args.Add("response_type", "code");
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args.Add("client_id", AuthInfo.Client_ID);
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args.Add("redirect_uri", RedirectMethod);
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args.Add("scope", Scope);
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return URLHelpers.CreateQueryString(AuthorizationEndpoint, args);
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}
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public bool GetAccessToken(string code)
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{
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Dictionary<string, string> args = new Dictionary<string, string>();
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args.Add("code", code);
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args.Add("client_id", AuthInfo.Client_ID);
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args.Add("client_secret", AuthInfo.Client_Secret);
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args.Add("redirect_uri", RedirectMethod);
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args.Add("grant_type", "authorization_code");
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string response = GoogleUploader.SendRequestURLEncoded(HttpMethod.POST, TokenEndpoint, args);
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if (!string.IsNullOrEmpty(response))
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{
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OAuth2Token token = JsonConvert.DeserializeObject<OAuth2Token>(response);
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if (token != null && !string.IsNullOrEmpty(token.access_token))
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{
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token.UpdateExpireDate();
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AuthInfo.Token = token;
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return true;
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}
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}
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return false;
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}
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public bool RefreshAccessToken()
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{
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if (OAuth2Info.CheckOAuth(AuthInfo) && !string.IsNullOrEmpty(AuthInfo.Token.refresh_token))
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{
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Dictionary<string, string> args = new Dictionary<string, string>();
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args.Add("refresh_token", AuthInfo.Token.refresh_token);
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args.Add("client_id", AuthInfo.Client_ID);
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args.Add("client_secret", AuthInfo.Client_Secret);
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args.Add("grant_type", "refresh_token");
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string response = GoogleUploader.SendRequestURLEncoded(HttpMethod.POST, TokenEndpoint, args);
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if (!string.IsNullOrEmpty(response))
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{
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OAuth2Token token = JsonConvert.DeserializeObject<OAuth2Token>(response);
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if (token != null && !string.IsNullOrEmpty(token.access_token))
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{
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token.UpdateExpireDate();
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string refresh_token = AuthInfo.Token.refresh_token;
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AuthInfo.Token = token;
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AuthInfo.Token.refresh_token = refresh_token;
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return true;
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}
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}
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}
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return false;
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}
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public bool CheckAuthorization()
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{
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if (OAuth2Info.CheckOAuth(AuthInfo))
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{
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if (AuthInfo.Token.IsExpired && !RefreshAccessToken())
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{
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GoogleUploader.Errors.Add("Refresh access token failed.");
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return false;
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}
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}
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else
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{
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GoogleUploader.Errors.Add("Login is required.");
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return false;
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}
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return true;
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}
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public NameValueCollection GetAuthHeaders()
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{
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NameValueCollection headers = new NameValueCollection();
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headers.Add("Authorization", "Bearer " + AuthInfo.Token.access_token);
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return headers;
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}
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public OAuthUserInfo GetUserInfo()
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{
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string response = GoogleUploader.SendRequest(HttpMethod.GET, UserInfoEndpoint, null, GetAuthHeaders());
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if (!string.IsNullOrEmpty(response))
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{
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return JsonConvert.DeserializeObject<OAuthUserInfo>(response);
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}
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return null;
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}
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}
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} |