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Added service worker for handling routine tasks outside the scope of the main site.

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Uncled1023 2018-12-19 21:52:46 -08:00
parent 80f14fd1f1
commit 933fb9d4cd
9 changed files with 286 additions and 17 deletions
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1
.gitignore vendored
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@ -266,3 +266,4 @@ __pycache__/
**/appsettings.*.json
**/tempkey.rsa
/ServiceWorker/Properties/launchSettings.json

23
ServiceWorker/ArgumentOptions.cs Normal file
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@ -0,0 +1,23 @@
using CommandLine;
using System;
using System.Collections.Generic;
using System.Text;
namespace ServiceWorker
{
public class ArgumentOptions
{
[Option('a', "all", Default = false, Required = false, HelpText = "Run All Processes")]
public bool RunAll { get; set; }
[Option('c', "config", Required = false, HelpText = "The path to the teknik config file")]
public string Config { get; set; }
[Option('s', "scan", Default = false, Required = false, HelpText = "Scan all uploads for viruses")]
public bool ScanUploads { get; set; }
// Omitting long name, default --verbose
[Option(HelpText = "Prints all messages to standard output.")]
public bool Verbose { get; set; }
}
}

213
ServiceWorker/Program.cs Normal file
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@ -0,0 +1,213 @@
using CommandLine;
using Microsoft.EntityFrameworkCore;
using nClam;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using Teknik.Areas.Stats.Models;
using Teknik.Areas.Upload.Models;
using Teknik.Areas.Users.Models;
using Teknik.Areas.Users.Utility;
using Teknik.Configuration;
using Teknik.Data;
using Teknik.Utilities;
using Teknik.Utilities.Cryptography;
namespace ServiceWorker
{
public class Program
{
private static string currentPath = Path.GetDirectoryName(Assembly.GetEntryAssembly().Location);
private static string virusFile = Path.Combine(currentPath, "virusLogs.txt");
private static string errorFile = Path.Combine(currentPath, "errorLogs.txt");
private static string configPath = currentPath;
private const string TAKEDOWN_REPORTER = "Teknik Automated System";
private static readonly object dbLock = new object();
private static readonly object scanStatsLock = new object();
public static event Action<string> OutputEvent;
public static int Main(string[] args)
{
try
{
Parser.Default.ParseArguments<ArgumentOptions>(args).WithParsed(options =>
{
if (!string.IsNullOrEmpty(options.Config))
configPath = options.Config;
if (Directory.Exists(configPath))
{
Config config = Config.Load(configPath);
Output(string.Format("[{0}] Started Server Maintenance Process.", DateTime.Now));
var optionsBuilder = new DbContextOptionsBuilder<TeknikEntities>();
optionsBuilder.UseSqlServer("Data Source=blog.db");
using (TeknikEntities db = new TeknikEntities(optionsBuilder.Options))
{
// Scan all the uploads for viruses, and remove the bad ones
if (options.ScanUploads && config.UploadConfig.VirusScanEnable)
{
ScanUploads(config, db);
}
}
Output(string.Format("[{0}] Finished Server Maintenance Process.", DateTime.Now));
}
else
{
string msg = string.Format("[{0}] Config File does not exist.", DateTime.Now);
File.AppendAllLines(errorFile, new List<string> { msg });
Output(msg);
}
});
}
catch (Exception ex)
{
string msg = string.Format("[{0}] Exception: {1}", DateTime.Now, ex.GetFullMessage(true));
File.AppendAllLines(errorFile, new List<string> { msg });
Output(msg);
}
return -1;
}
public static void ScanUploads(Config config, TeknikEntities db)
{
Output(string.Format("[{0}] Started Virus Scan.", DateTime.Now));
List<Upload> uploads = db.Uploads.ToList();
int totalCount = uploads.Count();
int totalScans = 0;
int totalViruses = 0;
List<Task> runningTasks = new List<Task>();
foreach (Upload upload in uploads)
{
int currentScan = totalScans++;
Task scanTask = Task.Factory.StartNew(async () =>
{
var virusDetected = await ScanUpload(config, db, upload, totalCount, currentScan);
if (virusDetected)
totalViruses++;
});
if (scanTask != null)
{
runningTasks.Add(scanTask);
}
}
bool running = true;
while (running)
{
running = runningTasks.Exists(s => s != null && !s.IsCompleted && !s.IsCanceled && !s.IsFaulted);
}
Output(string.Format("Scanning Complete. {0} Scanned | {1} Viruses Found | {2} Total Files", totalScans, totalViruses, totalCount));
}
private static async Task<bool> ScanUpload(Config config, TeknikEntities db, Upload upload, int totalCount, int currentCount)
{
bool virusDetected = false;
string subDir = upload.FileName[0].ToString();
string filePath = Path.Combine(config.UploadConfig.UploadDirectory, subDir, upload.FileName);
if (File.Exists(filePath))
{
// If the IV is set, and Key is set, then scan it
if (!string.IsNullOrEmpty(upload.Key) && !string.IsNullOrEmpty(upload.IV))
{
byte[] keyBytes = Encoding.UTF8.GetBytes(upload.Key);
byte[] ivBytes = Encoding.UTF8.GetBytes(upload.IV);
long maxUploadSize = config.UploadConfig.MaxUploadSize;
if (upload.User != null)
{
maxUploadSize = config.UploadConfig.MaxUploadSizeBasic;
IdentityUserInfo userInfo = await IdentityHelper.GetIdentityUserInfo(config, upload.User.Username);
if (userInfo.AccountType == AccountType.Premium)
{
maxUploadSize = config.UploadConfig.MaxUploadSizePremium;
}
}
using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read))
using (AesCounterStream aesStream = new AesCounterStream(fs, false, keyBytes, ivBytes))
{
ClamClient clam = new ClamClient(config.UploadConfig.ClamServer, config.UploadConfig.ClamPort);
clam.MaxStreamSize = maxUploadSize;
ClamScanResult scanResult = await clam.SendAndScanFileAsync(fs);
switch (scanResult.Result)
{
case ClamScanResults.Clean:
string cleanMsg = string.Format("[{0}] Clean Scan: {1}/{2} Scanned | {3} - {4}", DateTime.Now, currentCount, totalCount, upload.Url, upload.FileName);
Output(cleanMsg);
break;
case ClamScanResults.VirusDetected:
string msg = string.Format("[{0}] Virus Detected: {1} - {2} - {3}", DateTime.Now, upload.Url, upload.FileName, scanResult.InfectedFiles.First().VirusName);
Output(msg);
lock (scanStatsLock)
{
virusDetected = true;
File.AppendAllLines(virusFile, new List<string> { msg });
}
lock (dbLock)
{
string urlName = upload.Url;
// Delete from the DB
db.Uploads.Remove(upload);
// Delete the File
if (File.Exists(filePath))
{
File.Delete(filePath);
}
// Add to transparency report if any were found
Takedown report = new Takedown();
report.Requester = TAKEDOWN_REPORTER;
report.RequesterContact = config.SupportEmail;
report.DateRequested = DateTime.Now;
report.Reason = "Malware Found";
report.ActionTaken = string.Format("Upload removed: {0}", urlName);
report.DateActionTaken = DateTime.Now;
db.Takedowns.Add(report);
// Save Changes
db.SaveChanges();
}
break;
case ClamScanResults.Error:
string errorMsg = string.Format("[{0}] Scan Error: {1}", DateTime.Now, scanResult.RawResult);
File.AppendAllLines(errorFile, new List<string> { errorMsg });
Output(errorMsg);
break;
case ClamScanResults.Unknown:
string unkMsg = string.Format("[{0}] Unknown Scan Result: {1}", DateTime.Now, scanResult.RawResult);
File.AppendAllLines(errorFile, new List<string> { unkMsg });
Output(unkMsg);
break;
}
}
}
}
return virusDetected;
}
public static void Output(string message)
{
Console.WriteLine(message);
if (OutputEvent != null)
{
OutputEvent(message);
}
}
}
}

18
ServiceWorker/ServiceWorker.csproj Normal file
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@ -0,0 +1,18 @@
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>netcoreapp2.1</TargetFramework>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="CommandLineParser.NS20" Version="2.3.1" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\Configuration\Configuration.csproj" />
<ProjectReference Include="..\Teknik\Teknik.csproj" />
<ProjectReference Include="..\Utilities\Utilities.csproj" />
</ItemGroup>
</Project>

8
Teknik.sln
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@ -26,6 +26,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MailService", "MailService\
EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "GitService", "GitService\GitService.csproj", "{014879B1-DDD5-4F8C-9597-6D7960912CF0}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceWorker", "ServiceWorker\ServiceWorker.csproj", "{0B712243-994C-4AC3-893C-B86B59F63F53}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
@ -75,6 +77,12 @@ Global
{014879B1-DDD5-4F8C-9597-6D7960912CF0}.Release|Any CPU.Build.0 = Release|Any CPU
{014879B1-DDD5-4F8C-9597-6D7960912CF0}.Test|Any CPU.ActiveCfg = Release|Any CPU
{014879B1-DDD5-4F8C-9597-6D7960912CF0}.Test|Any CPU.Build.0 = Release|Any CPU
{0B712243-994C-4AC3-893C-B86B59F63F53}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{0B712243-994C-4AC3-893C-B86B59F63F53}.Debug|Any CPU.Build.0 = Debug|Any CPU
{0B712243-994C-4AC3-893C-B86B59F63F53}.Release|Any CPU.ActiveCfg = Release|Any CPU
{0B712243-994C-4AC3-893C-B86B59F63F53}.Release|Any CPU.Build.0 = Release|Any CPU
{0B712243-994C-4AC3-893C-B86B59F63F53}.Test|Any CPU.ActiveCfg = Debug|Any CPU
{0B712243-994C-4AC3-893C-B86B59F63F53}.Test|Any CPU.Build.0 = Debug|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE

5
Teknik/Controllers/DefaultController.cs
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@ -37,11 +37,6 @@ namespace Teknik.Controllers
protected readonly Config _config;
protected readonly TeknikEntities _dbContext;
//protected virtual new TeknikPrincipal User
//{
// get { return HttpContext.User as TeknikPrincipal; }
//}
public DefaultController(ILogger<Logger> logger, Config config, TeknikEntities dbContext)
{
_logger = logger;

11
Teknik/Data/DbInitializer.cs
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@ -1,11 +0,0 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
namespace Teknik.Data
{
public static class DbInitializer
{
}
}

3
Teknik/Startup.cs
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@ -237,6 +237,9 @@ namespace Teknik
// Create and Migrate the database
dbContext.Database.Migrate();
// Run the overall migration calls
TeknikMigration.RunMigration();
// Initiate Logging
loggerFactory.AddLogger(config);

19
Teknik/TeknikMigration.cs Normal file
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@ -0,0 +1,19 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
namespace Teknik
{
public static class TeknikMigration
{
public static bool RunMigration()
{
bool success = false;
// Transfer User security info to
return success;
}
}
}