jellyfin/Emby.Server.Implementations/Library/DefaultPasswordResetProvider.cs

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using System;
using System.Collections.Generic;
using System.IO;
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using System.Security.Cryptography;
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using System.Threading.Tasks;
using MediaBrowser.Common.Extensions;
using MediaBrowser.Controller.Authentication;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Library;
using MediaBrowser.Model.Serialization;
using MediaBrowser.Model.Users;
namespace Emby.Server.Implementations.Library
{
public class DefaultPasswordResetProvider : IPasswordResetProvider
{
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private const string BaseResetFileName = "passwordreset";
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private readonly IJsonSerializer _jsonSerializer;
private readonly IUserManager _userManager;
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private readonly string _passwordResetFileBase;
private readonly string _passwordResetFileBaseDir;
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public DefaultPasswordResetProvider(
IServerConfigurationManager configurationManager,
IJsonSerializer jsonSerializer,
IUserManager userManager)
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{
_passwordResetFileBaseDir = configurationManager.ApplicationPaths.ProgramDataPath;
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_passwordResetFileBase = Path.Combine(_passwordResetFileBaseDir, BaseResetFileName);
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_jsonSerializer = jsonSerializer;
_userManager = userManager;
}
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/// <inheritdoc />
public string Name => "Default Password Reset Provider";
/// <inheritdoc />
public bool IsEnabled => true;
/// <inheritdoc />
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public async Task<PinRedeemResult> RedeemPasswordResetPin(string pin)
{
SerializablePasswordReset spr;
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List<string> usersreset = new List<string>();
foreach (var resetfile in Directory.EnumerateFiles(_passwordResetFileBaseDir, $"{BaseResetFileName}*"))
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{
using (var str = File.OpenRead(resetfile))
{
spr = await _jsonSerializer.DeserializeFromStreamAsync<SerializablePasswordReset>(str).ConfigureAwait(false);
}
if (spr.ExpirationDate < DateTime.Now)
{
File.Delete(resetfile);
}
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else if (string.Equals(
spr.Pin.Replace("-", string.Empty),
pin.Replace("-", string.Empty),
StringComparison.InvariantCultureIgnoreCase))
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{
var resetUser = _userManager.GetUserByName(spr.UserName);
if (resetUser == null)
{
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throw new ResourceNotFoundException($"User with a username of {spr.UserName} not found");
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}
await _userManager.ChangePassword(resetUser, pin).ConfigureAwait(false);
usersreset.Add(resetUser.Name);
File.Delete(resetfile);
}
}
if (usersreset.Count < 1)
{
throw new ResourceNotFoundException($"No Users found with a password reset request matching pin {pin}");
}
else
{
return new PinRedeemResult
{
Success = true,
UsersReset = usersreset.ToArray()
};
}
}
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/// <inheritdoc />
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public async Task<ForgotPasswordResult> StartForgotPasswordProcess(MediaBrowser.Controller.Entities.User user, bool isInNetwork)
{
string pin = string.Empty;
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using (var cryptoRandom = RandomNumberGenerator.Create())
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{
byte[] bytes = new byte[4];
cryptoRandom.GetBytes(bytes);
pin = BitConverter.ToString(bytes);
}
DateTime expireTime = DateTime.Now.AddMinutes(30);
string filePath = _passwordResetFileBase + user.InternalId + ".json";
SerializablePasswordReset spr = new SerializablePasswordReset
{
ExpirationDate = expireTime,
Pin = pin,
PinFile = filePath,
UserName = user.Name
};
using (FileStream fileStream = File.OpenWrite(filePath))
{
_jsonSerializer.SerializeToStream(spr, fileStream);
await fileStream.FlushAsync().ConfigureAwait(false);
}
return new ForgotPasswordResult
{
Action = ForgotPasswordAction.PinCode,
PinExpirationDate = expireTime,
PinFile = filePath
};
}
private class SerializablePasswordReset : PasswordPinCreationResult
{
public string Pin { get; set; }
public string UserName { get; set; }
}
}
}