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This also migrates already created passwords on login Source for the number of iterations: https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#pbkdf2
105 lines
3.7 KiB
C#
105 lines
3.7 KiB
C#
using System;
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using System.Threading.Tasks;
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using Jellyfin.Data.Entities;
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using MediaBrowser.Controller.Authentication;
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using MediaBrowser.Model.Cryptography;
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namespace Jellyfin.Server.Implementations.Users
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{
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/// <summary>
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/// The default authentication provider.
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/// </summary>
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public class DefaultAuthenticationProvider : IAuthenticationProvider, IRequiresResolvedUser
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{
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private readonly ICryptoProvider _cryptographyProvider;
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/// <summary>
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/// Initializes a new instance of the <see cref="DefaultAuthenticationProvider"/> class.
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/// </summary>
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/// <param name="cryptographyProvider">The cryptography provider.</param>
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public DefaultAuthenticationProvider(ICryptoProvider cryptographyProvider)
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{
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_cryptographyProvider = cryptographyProvider;
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}
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/// <inheritdoc />
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public string Name => "Default";
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/// <inheritdoc />
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public bool IsEnabled => true;
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/// <inheritdoc />
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// This is dumb and an artifact of the backwards way auth providers were designed.
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// This version of authenticate was never meant to be called, but needs to be here for interface compat
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// Only the providers that don't provide local user support use this
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public Task<ProviderAuthenticationResult> Authenticate(string username, string password)
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{
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throw new NotImplementedException();
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}
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/// <inheritdoc />
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// This is the version that we need to use for local users. Because reasons.
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public Task<ProviderAuthenticationResult> Authenticate(string username, string password, User resolvedUser)
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{
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if (resolvedUser == null)
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{
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throw new AuthenticationException("Specified user does not exist.");
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}
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bool success = false;
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// As long as jellyfin supports password-less users, we need this little block here to accommodate
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if (!HasPassword(resolvedUser) && string.IsNullOrEmpty(password))
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{
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return Task.FromResult(new ProviderAuthenticationResult
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{
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Username = username
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});
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}
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// Handle the case when the stored password is null, but the user tried to login with a password
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if (resolvedUser.Password == null)
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{
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throw new AuthenticationException("Invalid username or password");
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}
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PasswordHash readyHash = PasswordHash.Parse(resolvedUser.Password);
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success = _cryptographyProvider.Verify(readyHash, password);
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if (!success)
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{
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throw new AuthenticationException("Invalid username or password");
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}
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// Migrate old hashes to the new default
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if (!string.Equals(readyHash.Id, _cryptographyProvider.DefaultHashMethod, StringComparison.Ordinal))
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{
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ChangePassword(resolvedUser, password);
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}
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return Task.FromResult(new ProviderAuthenticationResult
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{
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Username = username
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});
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}
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/// <inheritdoc />
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public bool HasPassword(User user)
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=> !string.IsNullOrEmpty(user?.Password);
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/// <inheritdoc />
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public Task ChangePassword(User user, string newPassword)
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{
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if (string.IsNullOrEmpty(newPassword))
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{
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user.Password = null;
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return Task.CompletedTask;
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}
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PasswordHash newPasswordHash = _cryptographyProvider.CreatePasswordHash(newPassword);
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user.Password = newPasswordHash.ToString();
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return Task.CompletedTask;
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}
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}
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}
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