mirror of
https://github.com/JustArchiNET/ArchiSteamFarm.git
synced 2026-01-01 22:20:52 +00:00
469 lines
13 KiB
C#
469 lines
13 KiB
C#
// _ _ _ ____ _ _____
|
|
// / \ _ __ ___ | |__ (_)/ ___| | |_ ___ __ _ _ __ ___ | ___|__ _ _ __ _ __ ___
|
|
// / _ \ | '__|/ __|| '_ \ | |\___ \ | __|/ _ \ / _` || '_ ` _ \ | |_ / _` || '__|| '_ ` _ \
|
|
// / ___ \ | | | (__ | | | || | ___) || |_| __/| (_| || | | | | || _|| (_| || | | | | | | |
|
|
// /_/ \_\|_| \___||_| |_||_||____/ \__|\___| \__,_||_| |_| |_||_| \__,_||_| |_| |_| |_|
|
|
// |
|
|
// Copyright 2015-2020 Łukasz "JustArchi" Domeradzki
|
|
// Contact: JustArchi@JustArchi.net
|
|
// |
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
// |
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
// |
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Diagnostics.CodeAnalysis;
|
|
using System.Security.Cryptography;
|
|
using System.Text;
|
|
using System.Threading;
|
|
using System.Threading.Tasks;
|
|
using ArchiSteamFarm.Json;
|
|
using ArchiSteamFarm.Localization;
|
|
using HtmlAgilityPack;
|
|
using JetBrains.Annotations;
|
|
using Newtonsoft.Json;
|
|
|
|
namespace ArchiSteamFarm {
|
|
[SuppressMessage("ReSharper", "ClassCannotBeInstantiated")]
|
|
internal sealed class MobileAuthenticator {
|
|
private const byte CodeDigits = 5;
|
|
private const byte CodeInterval = 30;
|
|
private const byte SteamTimeTTL = 24; // For how many hours we can assume that SteamTimeDifference is correct
|
|
|
|
private static readonly char[] CodeCharacters = { '2', '3', '4', '5', '6', '7', '8', '9', 'B', 'C', 'D', 'F', 'G', 'H', 'J', 'K', 'M', 'N', 'P', 'Q', 'R', 'T', 'V', 'W', 'X', 'Y' };
|
|
private static readonly SemaphoreSlim ConfirmationsSemaphore = new SemaphoreSlim(1, 1);
|
|
private static readonly SemaphoreSlim TimeSemaphore = new SemaphoreSlim(1, 1);
|
|
|
|
private static DateTime LastSteamTimeCheck;
|
|
private static int? SteamTimeDifference;
|
|
|
|
internal bool HasValidDeviceID => !string.IsNullOrEmpty(DeviceID) && IsValidDeviceID(DeviceID);
|
|
|
|
#pragma warning disable 649
|
|
[JsonProperty(PropertyName = "identity_secret", Required = Required.Always)]
|
|
private readonly string IdentitySecret;
|
|
#pragma warning restore 649
|
|
|
|
#pragma warning disable 649
|
|
[JsonProperty(PropertyName = "shared_secret", Required = Required.Always)]
|
|
private readonly string SharedSecret;
|
|
#pragma warning restore 649
|
|
|
|
private Bot Bot;
|
|
|
|
[JsonProperty(PropertyName = "device_id")]
|
|
private string DeviceID;
|
|
|
|
[JsonConstructor]
|
|
private MobileAuthenticator() { }
|
|
|
|
internal void CorrectDeviceID(string deviceID) {
|
|
if (string.IsNullOrEmpty(deviceID)) {
|
|
Bot.ArchiLogger.LogNullError(nameof(deviceID));
|
|
|
|
return;
|
|
}
|
|
|
|
if (!IsValidDeviceID(deviceID)) {
|
|
Bot.ArchiLogger.LogGenericError(string.Format(Strings.ErrorIsInvalid, nameof(deviceID)));
|
|
|
|
return;
|
|
}
|
|
|
|
DeviceID = deviceID;
|
|
}
|
|
|
|
internal async Task<string> GenerateToken() {
|
|
uint time = await GetSteamTime().ConfigureAwait(false);
|
|
|
|
if (time == 0) {
|
|
Bot.ArchiLogger.LogNullError(nameof(time));
|
|
|
|
return null;
|
|
}
|
|
|
|
return GenerateTokenForTime(time);
|
|
}
|
|
|
|
[ItemCanBeNull]
|
|
internal async Task<Steam.ConfirmationDetails> GetConfirmationDetails(Confirmation confirmation) {
|
|
if (confirmation == null) {
|
|
Bot.ArchiLogger.LogNullError(nameof(confirmation));
|
|
|
|
return null;
|
|
}
|
|
|
|
if (!HasValidDeviceID) {
|
|
Bot.ArchiLogger.LogGenericError(Strings.ErrorMobileAuthenticatorInvalidDeviceID);
|
|
|
|
return null;
|
|
}
|
|
|
|
uint time = await GetSteamTime().ConfigureAwait(false);
|
|
|
|
if (time == 0) {
|
|
Bot.ArchiLogger.LogNullError(nameof(time));
|
|
|
|
return null;
|
|
}
|
|
|
|
string confirmationHash = GenerateConfirmationHash(time, "conf");
|
|
|
|
if (string.IsNullOrEmpty(confirmationHash)) {
|
|
Bot.ArchiLogger.LogNullError(nameof(confirmationHash));
|
|
|
|
return null;
|
|
}
|
|
|
|
Steam.ConfirmationDetails response = await Bot.ArchiWebHandler.GetConfirmationDetails(DeviceID, confirmationHash, time, confirmation).ConfigureAwait(false);
|
|
|
|
return response?.Success == true ? response : null;
|
|
}
|
|
|
|
[ItemCanBeNull]
|
|
internal async Task<HashSet<Confirmation>> GetConfirmations(Steam.ConfirmationDetails.EType? acceptedType = null) {
|
|
if (!HasValidDeviceID) {
|
|
Bot.ArchiLogger.LogGenericError(Strings.ErrorMobileAuthenticatorInvalidDeviceID);
|
|
|
|
return null;
|
|
}
|
|
|
|
uint time = await GetSteamTime().ConfigureAwait(false);
|
|
|
|
if (time == 0) {
|
|
Bot.ArchiLogger.LogNullError(nameof(time));
|
|
|
|
return null;
|
|
}
|
|
|
|
string confirmationHash = GenerateConfirmationHash(time, "conf");
|
|
|
|
if (string.IsNullOrEmpty(confirmationHash)) {
|
|
Bot.ArchiLogger.LogNullError(nameof(confirmationHash));
|
|
|
|
return null;
|
|
}
|
|
|
|
await LimitConfirmationsRequestsAsync().ConfigureAwait(false);
|
|
|
|
HtmlDocument htmlDocument = await Bot.ArchiWebHandler.GetConfirmations(DeviceID, confirmationHash, time).ConfigureAwait(false);
|
|
|
|
HtmlNodeCollection confirmationNodes = htmlDocument?.DocumentNode.SelectNodes("//div[@class='mobileconf_list_entry']");
|
|
|
|
if (confirmationNodes == null) {
|
|
return null;
|
|
}
|
|
|
|
HashSet<Confirmation> result = new HashSet<Confirmation>();
|
|
|
|
foreach (HtmlNode confirmationNode in confirmationNodes) {
|
|
string idText = confirmationNode.GetAttributeValue("data-confid", null);
|
|
|
|
if (string.IsNullOrEmpty(idText)) {
|
|
Bot.ArchiLogger.LogNullError(nameof(idText));
|
|
|
|
return null;
|
|
}
|
|
|
|
if (!ulong.TryParse(idText, out ulong id) || (id == 0)) {
|
|
Bot.ArchiLogger.LogNullError(nameof(id));
|
|
|
|
return null;
|
|
}
|
|
|
|
string keyText = confirmationNode.GetAttributeValue("data-key", null);
|
|
|
|
if (string.IsNullOrEmpty(keyText)) {
|
|
Bot.ArchiLogger.LogNullError(nameof(keyText));
|
|
|
|
return null;
|
|
}
|
|
|
|
if (!ulong.TryParse(keyText, out ulong key) || (key == 0)) {
|
|
Bot.ArchiLogger.LogNullError(nameof(key));
|
|
|
|
return null;
|
|
}
|
|
|
|
string typeText = confirmationNode.GetAttributeValue("data-type", null);
|
|
|
|
if (string.IsNullOrEmpty(typeText)) {
|
|
Bot.ArchiLogger.LogNullError(nameof(typeText));
|
|
|
|
return null;
|
|
}
|
|
|
|
if (!Enum.TryParse(typeText, out Steam.ConfirmationDetails.EType type) || (type == Steam.ConfirmationDetails.EType.Unknown)) {
|
|
Bot.ArchiLogger.LogNullError(nameof(type));
|
|
|
|
return null;
|
|
}
|
|
|
|
if (!Enum.IsDefined(typeof(Steam.ConfirmationDetails.EType), type)) {
|
|
Bot.ArchiLogger.LogGenericError(string.Format(Strings.WarningUnknownValuePleaseReport, nameof(type), type));
|
|
|
|
return null;
|
|
}
|
|
|
|
if (acceptedType.HasValue && (acceptedType.Value != type)) {
|
|
continue;
|
|
}
|
|
|
|
result.Add(new Confirmation(id, key));
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
internal async Task<bool> HandleConfirmations(IReadOnlyCollection<Confirmation> confirmations, bool accept) {
|
|
if ((confirmations == null) || (confirmations.Count == 0)) {
|
|
Bot.ArchiLogger.LogNullError(nameof(confirmations));
|
|
|
|
return false;
|
|
}
|
|
|
|
if (!HasValidDeviceID) {
|
|
Bot.ArchiLogger.LogGenericError(Strings.ErrorMobileAuthenticatorInvalidDeviceID);
|
|
|
|
return false;
|
|
}
|
|
|
|
uint time = await GetSteamTime().ConfigureAwait(false);
|
|
|
|
if (time == 0) {
|
|
Bot.ArchiLogger.LogNullError(nameof(time));
|
|
|
|
return false;
|
|
}
|
|
|
|
string confirmationHash = GenerateConfirmationHash(time, "conf");
|
|
|
|
if (string.IsNullOrEmpty(confirmationHash)) {
|
|
Bot.ArchiLogger.LogNullError(nameof(confirmationHash));
|
|
|
|
return false;
|
|
}
|
|
|
|
bool? result = await Bot.ArchiWebHandler.HandleConfirmations(DeviceID, confirmationHash, time, confirmations, accept).ConfigureAwait(false);
|
|
|
|
if (!result.HasValue) {
|
|
// Request timed out
|
|
return false;
|
|
}
|
|
|
|
if (result.Value) {
|
|
// Request succeeded
|
|
return true;
|
|
}
|
|
|
|
// Our multi request failed, this is almost always Steam issue that happens randomly
|
|
// In this case, we'll accept all pending confirmations one-by-one, synchronously (as Steam can't handle them in parallel)
|
|
// We totally ignore actual result returned by those calls, abort only if request timed out
|
|
foreach (Confirmation confirmation in confirmations) {
|
|
bool? confirmationResult = await Bot.ArchiWebHandler.HandleConfirmation(DeviceID, confirmationHash, time, confirmation.ID, confirmation.Key, accept).ConfigureAwait(false);
|
|
|
|
if (!confirmationResult.HasValue) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
internal void Init([JetBrains.Annotations.NotNull] Bot bot) => Bot = bot ?? throw new ArgumentNullException(nameof(bot));
|
|
|
|
internal static bool IsValidDeviceID(string deviceID) {
|
|
if (string.IsNullOrEmpty(deviceID)) {
|
|
ASF.ArchiLogger.LogNullError(nameof(deviceID));
|
|
|
|
return false;
|
|
}
|
|
|
|
// This one is optional
|
|
int deviceIdentifierIndex = deviceID.IndexOf(':');
|
|
|
|
if (deviceIdentifierIndex >= 0) {
|
|
deviceIdentifierIndex++;
|
|
|
|
if (deviceID.Length <= deviceIdentifierIndex) {
|
|
return false;
|
|
}
|
|
|
|
deviceID = deviceID.Substring(deviceIdentifierIndex);
|
|
}
|
|
|
|
// Dashes are optional in the ID, strip them off for comparison
|
|
string hash = deviceID.Replace("-", "");
|
|
|
|
return (hash.Length > 0) && (Utilities.IsValidDigitsText(hash) || Utilities.IsValidHexadecimalText(hash));
|
|
}
|
|
|
|
private string GenerateConfirmationHash(uint time, string tag = null) {
|
|
if (time == 0) {
|
|
Bot.ArchiLogger.LogNullError(nameof(time));
|
|
|
|
return null;
|
|
}
|
|
|
|
byte[] identitySecret;
|
|
|
|
try {
|
|
identitySecret = Convert.FromBase64String(IdentitySecret);
|
|
} catch (FormatException e) {
|
|
Bot.ArchiLogger.LogGenericException(e);
|
|
Bot.ArchiLogger.LogGenericError(string.Format(Strings.ErrorIsInvalid, nameof(IdentitySecret)));
|
|
|
|
return null;
|
|
}
|
|
|
|
byte bufferSize = 8;
|
|
|
|
if (!string.IsNullOrEmpty(tag)) {
|
|
bufferSize += (byte) Math.Min(32, tag.Length);
|
|
}
|
|
|
|
byte[] timeArray = BitConverter.GetBytes((long) time);
|
|
|
|
if (BitConverter.IsLittleEndian) {
|
|
Array.Reverse(timeArray);
|
|
}
|
|
|
|
byte[] buffer = new byte[bufferSize];
|
|
|
|
Array.Copy(timeArray, buffer, 8);
|
|
|
|
if (!string.IsNullOrEmpty(tag)) {
|
|
Array.Copy(Encoding.UTF8.GetBytes(tag), 0, buffer, 8, bufferSize - 8);
|
|
}
|
|
|
|
byte[] hash;
|
|
|
|
using (HMACSHA1 hmac = new HMACSHA1(identitySecret)) {
|
|
hash = hmac.ComputeHash(buffer);
|
|
}
|
|
|
|
return Convert.ToBase64String(hash);
|
|
}
|
|
|
|
private string GenerateTokenForTime(uint time) {
|
|
if (time == 0) {
|
|
Bot.ArchiLogger.LogNullError(nameof(time));
|
|
|
|
return null;
|
|
}
|
|
|
|
byte[] sharedSecret;
|
|
|
|
try {
|
|
sharedSecret = Convert.FromBase64String(SharedSecret);
|
|
} catch (FormatException e) {
|
|
Bot.ArchiLogger.LogGenericException(e);
|
|
Bot.ArchiLogger.LogGenericError(string.Format(Strings.ErrorIsInvalid, nameof(SharedSecret)));
|
|
|
|
return null;
|
|
}
|
|
|
|
byte[] timeArray = BitConverter.GetBytes((long) time / CodeInterval);
|
|
|
|
if (BitConverter.IsLittleEndian) {
|
|
Array.Reverse(timeArray);
|
|
}
|
|
|
|
byte[] hash;
|
|
|
|
using (HMACSHA1 hmac = new HMACSHA1(sharedSecret)) {
|
|
hash = hmac.ComputeHash(timeArray);
|
|
}
|
|
|
|
// The last 4 bits of the mac say where the code starts
|
|
int start = hash[hash.Length - 1] & 0x0f;
|
|
|
|
// Extract those 4 bytes
|
|
byte[] bytes = new byte[4];
|
|
|
|
Array.Copy(hash, start, bytes, 0, 4);
|
|
|
|
if (BitConverter.IsLittleEndian) {
|
|
Array.Reverse(bytes);
|
|
}
|
|
|
|
uint fullCode = BitConverter.ToUInt32(bytes, 0) & 0x7fffffff;
|
|
|
|
// Build the alphanumeric code
|
|
StringBuilder code = new StringBuilder(CodeDigits, CodeDigits);
|
|
|
|
for (byte i = 0; i < CodeDigits; i++) {
|
|
code.Append(CodeCharacters[fullCode % CodeCharacters.Length]);
|
|
fullCode /= (uint) CodeCharacters.Length;
|
|
}
|
|
|
|
return code.ToString();
|
|
}
|
|
|
|
private async Task<uint> GetSteamTime() {
|
|
if (SteamTimeDifference.HasValue && (DateTime.UtcNow.Subtract(LastSteamTimeCheck).TotalHours < SteamTimeTTL)) {
|
|
return (uint) (Utilities.GetUnixTime() + SteamTimeDifference.Value);
|
|
}
|
|
|
|
await TimeSemaphore.WaitAsync().ConfigureAwait(false);
|
|
|
|
try {
|
|
if (SteamTimeDifference.HasValue && (DateTime.UtcNow.Subtract(LastSteamTimeCheck).TotalHours < SteamTimeTTL)) {
|
|
return (uint) (Utilities.GetUnixTime() + SteamTimeDifference.Value);
|
|
}
|
|
|
|
uint serverTime = await Bot.ArchiWebHandler.GetServerTime().ConfigureAwait(false);
|
|
|
|
if (serverTime == 0) {
|
|
return Utilities.GetUnixTime();
|
|
}
|
|
|
|
SteamTimeDifference = (int) (serverTime - Utilities.GetUnixTime());
|
|
LastSteamTimeCheck = DateTime.UtcNow;
|
|
|
|
return (uint) (Utilities.GetUnixTime() + SteamTimeDifference.Value);
|
|
} finally {
|
|
TimeSemaphore.Release();
|
|
}
|
|
}
|
|
|
|
private static async Task LimitConfirmationsRequestsAsync() {
|
|
if (ASF.GlobalConfig.ConfirmationsLimiterDelay == 0) {
|
|
return;
|
|
}
|
|
|
|
await ConfirmationsSemaphore.WaitAsync().ConfigureAwait(false);
|
|
|
|
Utilities.InBackground(
|
|
async () => {
|
|
await Task.Delay(ASF.GlobalConfig.ConfirmationsLimiterDelay * 1000).ConfigureAwait(false);
|
|
ConfirmationsSemaphore.Release();
|
|
}
|
|
);
|
|
}
|
|
|
|
internal sealed class Confirmation {
|
|
internal readonly ulong ID;
|
|
internal readonly ulong Key;
|
|
|
|
internal Confirmation(ulong id, ulong key) {
|
|
if ((id == 0) || (key == 0)) {
|
|
throw new ArgumentNullException(nameof(id) + " || " + nameof(key));
|
|
}
|
|
|
|
ID = id;
|
|
Key = key;
|
|
}
|
|
}
|
|
}
|
|
}
|