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/*
* Copyright (c) 2024 Vaughn Nugent
*
* Library: VNLib
* Package: VNLib.Plugins.Essentials.Auth.Social
* File: OauthClientConfig.cs
*
* OauthClientConfig.cs is part of VNLib.Plugins.Essentials.Auth.Social which is part of the larger
* VNLib collection of libraries and utilities.
*
* VNLib.Plugins.Essentials.Auth.Social is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* VNLib.Plugins.Essentials.Auth.Social is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see https://www.gnu.org/licenses/.
*/
using System;
using System.Net;
using System.Collections.Generic;
using VNLib.Utils.Logging;
using VNLib.Utils.Extensions;
using VNLib.Plugins.Extensions.Loading;
namespace VNLib.Plugins.Essentials.Auth.Social
{
/// <summary>
/// Contains the standard configuration data for an OAuth2 endpoint
/// defined by plugin configuration
/// </summary>
public sealed class OauthClientConfig
{
public OauthClientConfig(PluginBase plugin, IConfigScope config)
{
EndpointPath = config["path"].GetString() ?? throw new KeyNotFoundException($"Missing required key 'path' in config {config.ScopeName}");
//Set discord account origin
AccountOrigin = config["account_origin"].GetString() ?? throw new KeyNotFoundException($"Missing required key 'account_origin' in config {config.ScopeName}");
//Get the auth and token urls
string authUrl = config["authorization_url"].GetString() ?? throw new KeyNotFoundException($"Missing required key 'authorization_url' in config {config.ScopeName}");
string tokenUrl = config["token_url"].GetString() ?? throw new KeyNotFoundException($"Missing required key 'token_url' in config {config.ScopeName}");
string userUrl = config["user_data_url"].GetString() ?? throw new KeyNotFoundException($"Missing required key 'user_data_url' in config {config.ScopeName}");
//Create the uris
AccessCodeUrl = new(authUrl);
AccessTokenUrl = new(tokenUrl);
UserDataUrl = new(userUrl);
AllowForLocalAccounts = config["allow_for_local"].GetBoolean();
AllowRegistration = config["allow_registration"].GetBoolean();
NonceByteSize = config["nonce_size"].GetUInt32();
RandomPasswordSize = config["password_size"].GetInt32();
InitClaimValidFor = config["claim_valid_for_sec"].GetTimeSpan(TimeParseType.Seconds);
//Setup async lazy loaders for secrets
ClientID = plugin.GetSecretAsync($"{config.ScopeName}_client_id")
.ToLazy(static r => r.Result.ToString());
ClientSecret = plugin.GetSecretAsync($"{config.ScopeName}_client_secret")
.ToLazy(static r => r.Result.ToString());
//Log the token server ip address for the user to verify
if (plugin.Log.IsEnabled(LogLevel.Verbose))
{
_ = plugin.ObserveWork(async () =>
{
IPAddress[] addresses = await Dns.GetHostAddressesAsync(AccessTokenUrl.DnsSafeHost);
plugin.Log.Verbose("Token server {host} resolves to {ip}", AccessTokenUrl.DnsSafeHost, addresses);
});
}
}
/// <summary>
/// The client ID for the OAuth2 service
/// </summary>
public IAsyncLazy<string> ClientID { get; }
/// <summary>
/// The client secret for the OAuth2 service
/// </summary>
public IAsyncLazy<string> ClientSecret { get; }
/// <summary>
/// The user-account origin value. Specifies that the user account
/// was created outside of the local account system
/// </summary>
public string AccountOrigin { get; }
/// <summary>
/// The URL to redirect the user to the OAuth2 service
/// to begin the authentication process
/// </summary>
public Uri AccessCodeUrl { get; }
/// <summary>
/// The remote endoint to exchange codes for access tokens
/// </summary>
public Uri AccessTokenUrl { get; }
/// <summary>
/// The endpoint to get user-data object from
/// </summary>
public Uri UserDataUrl { get; }
/// <summary>
/// The endpoint route/path
/// </summary>
public string EndpointPath { get; }
/// <summary>
/// The size (in bytes) of the random generated nonce
/// </summary>
public uint NonceByteSize { get; }
/// <summary>
/// A value that specifies if locally created accounts are allowed
/// to be logged in from an OAuth2 source
/// </summary>
public bool AllowForLocalAccounts { get; }
/// <summary>
/// A value that indicates if accounts that do not exist will be created
/// and logged in immediatly, on successfull OAuth2 flow
/// </summary>
public bool AllowRegistration { get; }
/// <summary>
/// The size (in bytes) of the random password generated for new users
/// </summary>
public int RandomPasswordSize { get; }
/// <summary>
/// The initial time the login claim is valid for
/// </summary>
public TimeSpan InitClaimValidFor { get; }
}
}
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