104 lines
4.1 KiB
C#
104 lines
4.1 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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using System.Text;
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using System.Text.RegularExpressions;
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using SecurityContext = ASC.Core.SecurityContext;
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namespace ASC.Api.Core.Auth;
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[Scope]
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public class BasicAuthHandler : AuthenticationHandler<AuthenticationSchemeOptions>
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{
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private readonly UserManager _userManager;
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private readonly SecurityContext _securityContext;
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private readonly PasswordHasher _passwordHasher;
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public BasicAuthHandler(
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IOptionsMonitor<AuthenticationSchemeOptions> options,
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ILoggerFactory logger,
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UrlEncoder encoder,
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ISystemClock clock
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) : base(options, logger, encoder, clock)
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{
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}
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public BasicAuthHandler(
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IOptionsMonitor<AuthenticationSchemeOptions> options,
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ILoggerFactory logger,
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UrlEncoder encoder,
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ISystemClock clock,
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UserManager userManager,
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SecurityContext securityContext,
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PasswordHasher passwordHasher) : this(options, logger, encoder, clock)
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{
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_userManager = userManager;
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_securityContext = securityContext;
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_passwordHasher = passwordHasher;
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}
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protected override Task<AuthenticateResult> HandleAuthenticateAsync()
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{
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Response.Headers.Add("WWW-Authenticate", "Basic");
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if (!Request.Headers.ContainsKey("Authorization"))
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{
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return Task.FromResult(AuthenticateResult.Fail("Authorization header missing."));
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}
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// Get authorization key
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var authorizationHeader = Request.Headers["Authorization"].ToString();
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var authHeaderRegex = new Regex(@"Basic (.*)");
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if (!authHeaderRegex.IsMatch(authorizationHeader))
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{
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return Task.FromResult(AuthenticateResult.Fail("Authorization code not formatted properly."));
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}
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var authBase64 = Encoding.UTF8.GetString(Convert.FromBase64String(authHeaderRegex.Replace(authorizationHeader, "$1")));
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var authSplit = authBase64.Split(Convert.ToChar(":"), 2);
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var authUsername = authSplit[0];
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var authPassword = authSplit.Length > 1 ? authSplit[1] : throw new Exception("Unable to get password");
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try
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{
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var userInfo = _userManager.GetUserByEmail(authUsername);
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var passwordHash = _passwordHasher.GetClientPassword(authPassword);
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_securityContext.AuthenticateMe(userInfo.Email, passwordHash);
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}
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catch (Exception)
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{
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return Task.FromResult(AuthenticateResult.Fail("The username or password is not correct."));
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}
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return Task.FromResult(AuthenticateResult.Success(new AuthenticationTicket(Context.User, Scheme.Name)));
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}
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}
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