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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Threading;
using System.Threading.Tasks;
using MediaBrowser.Common.Configuration;
using MediaBrowser.Common.Net;
using MediaBrowser.Common.Security;
using MediaBrowser.Controller;
using MediaBrowser.Model.Cryptography;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.IO;
using Microsoft.Extensions.Logging;
using MediaBrowser.Model.Net;
using MediaBrowser.Model.Serialization;
namespace Emby.Server.Implementations.Security
{
/// <summary>
/// Class PluginSecurityManager
/// </summary>
public class PluginSecurityManager : ISecurityManager
{
private const string MBValidateUrl = "https://mb3admin.local/admin/service/registration/validate";
private const string AppstoreRegUrl = /*MbAdmin.HttpsUrl*/ "https://mb3admin.local/admin/service/appstore/register";
public async Task<bool> IsSupporter()
{
var result = await GetRegistrationStatusInternal("MBSupporter", false, _appHost.ApplicationVersion.ToString(), CancellationToken.None).ConfigureAwait(false);
return result.IsRegistered;
}
private MBLicenseFile _licenseFile;
private MBLicenseFile LicenseFile
{
get { return _licenseFile ?? (_licenseFile = new MBLicenseFile(_appPaths, _fileSystem, _cryptographyProvider)); }
}
private readonly IHttpClient _httpClient;
private readonly IJsonSerializer _jsonSerializer;
private readonly IServerApplicationHost _appHost;
private readonly ILogger _logger;
private readonly IApplicationPaths _appPaths;
private readonly IFileSystem _fileSystem;
private readonly ICryptoProvider _cryptographyProvider;
/// <summary>
/// Initializes a new instance of the <see cref="PluginSecurityManager" /> class.
/// </summary>
public PluginSecurityManager(IServerApplicationHost appHost, IHttpClient httpClient, IJsonSerializer jsonSerializer,
IApplicationPaths appPaths, ILoggerFactory loggerFactory, IFileSystem fileSystem, ICryptoProvider cryptographyProvider)
{
if (httpClient == null)
{
throw new ArgumentNullException("httpClient");
}
_appHost = appHost;
_httpClient = httpClient;
_jsonSerializer = jsonSerializer;
_appPaths = appPaths;
_fileSystem = fileSystem;
_cryptographyProvider = cryptographyProvider;
_logger = loggerFactory.CreateLogger("SecurityManager");
}
/// <summary>
/// Gets the registration status.
/// This overload supports existing plug-ins.
/// </summary>
public Task<MBRegistrationRecord> GetRegistrationStatus(string feature)
{
return GetRegistrationStatusInternal(feature, false, null, CancellationToken.None);
}
/// <summary>
/// Gets or sets the supporter key.
/// </summary>
/// <value>The supporter key.</value>
public string SupporterKey
{
get
{
return LicenseFile.RegKey;
}
set
{
throw new Exception("Please call UpdateSupporterKey");
}
}
public async Task UpdateSupporterKey(string newValue)
{
if (newValue != null)
{
newValue = newValue.Trim();
}
if (!string.Equals(newValue, LicenseFile.RegKey, StringComparison.Ordinal))
{
LicenseFile.RegKey = newValue;
LicenseFile.Save();
// Reset this
await GetRegistrationStatusInternal("MBSupporter", true, _appHost.ApplicationVersion.ToString(), CancellationToken.None).ConfigureAwait(false);
}
}
/// <summary>
/// Register an app store sale with our back-end. It will validate the transaction with the store
/// and then register the proper feature and then fill in the supporter key on success.
/// </summary>
/// <param name="parameters">Json parameters to send to admin server</param>
public async Task RegisterAppStoreSale(string parameters)
{
var options = new HttpRequestOptions()
{
Url = AppstoreRegUrl,
CancellationToken = CancellationToken.None,
BufferContent = false
};
options.RequestHeaders.Add("X-Emby-Token", _appHost.SystemId);
options.RequestContent = parameters;
options.RequestContentType = "application/json";
try
{
using (var response = await _httpClient.Post(options).ConfigureAwait(false))
{
var reg = await _jsonSerializer.DeserializeFromStreamAsync<RegRecord>(response.Content).ConfigureAwait(false);
if (reg == null)
{
var msg = "Result from appstore registration was null.";
_logger.LogError(msg);
throw new ArgumentException(msg);
}
if (!String.IsNullOrEmpty(reg.key))
{
await UpdateSupporterKey(reg.key).ConfigureAwait(false);
}
}
}
catch (ArgumentException)
{
SaveAppStoreInfo(parameters);
throw;
}
catch (HttpException ex)
{
_logger.LogError(ex, "Error registering appstore purchase {parameters}", parameters ?? "NO PARMS SENT");
throw new Exception("Error registering store sale");
}
catch (Exception ex)
{
_logger.LogError(ex, "Error registering appstore purchase {parameters}", parameters ?? "NO PARMS SENT");
SaveAppStoreInfo(parameters);
//TODO - could create a re-try routine on start-up if this file is there. For now we can handle manually.
throw new Exception("Error registering store sale");
}
}
private void SaveAppStoreInfo(string info)
{
// Save all transaction information to a file
try
{
_fileSystem.WriteAllText(Path.Combine(_appPaths.ProgramDataPath, "apptrans-error.txt"), info);
}
catch (IOException)
{
}
}
private SemaphoreSlim _regCheckLock = new SemaphoreSlim(1, 1);
private async Task<MBRegistrationRecord> GetRegistrationStatusInternal(string feature, bool forceCallToServer, string version, CancellationToken cancellationToken)
{
await _regCheckLock.WaitAsync(cancellationToken).ConfigureAwait(false);
try
{
var record = new MBRegistrationRecord
{
IsRegistered = true,
RegChecked = true,
TrialVersion = false,
IsValid = true,
RegError = false
};
return record;
}
finally
{
_regCheckLock.Release();
}
}
private bool IsInTrial(DateTime expirationDate, bool regChecked, bool isRegistered)
{
//don't set this until we've successfully obtained exp date
if (!regChecked)
{
return false;
}
var isInTrial = expirationDate > DateTime.UtcNow;
return isInTrial && !isRegistered;
}
}
}
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