From abed5b331bf82158d20c5ba7ddff589b58201fb6 Mon Sep 17 00:00:00 2001
From: Eric Reed <ebr@mediabrowser3.com>
Date: Sat, 13 Apr 2013 17:09:13 -0400
Subject: [PATCH] Pull in security objects from external assembly

---
 ...MediaBrowser.Common.Implementations.csproj |   6 +-
 .../Security/MBLicenseFile.cs                 | 106 +++++++++++++++++
 .../Security/MBRegistration.cs                | 109 ++++++++++++++++++
 .../Security/PluginSecurityManager.cs         |   2 +-
 4 files changed, 218 insertions(+), 5 deletions(-)
 create mode 100644 MediaBrowser.Common.Implementations/Security/MBLicenseFile.cs
 create mode 100644 MediaBrowser.Common.Implementations/Security/MBRegistration.cs

diff --git a/MediaBrowser.Common.Implementations/MediaBrowser.Common.Implementations.csproj b/MediaBrowser.Common.Implementations/MediaBrowser.Common.Implementations.csproj
index b2872e22a8..79344bb0db 100644
--- a/MediaBrowser.Common.Implementations/MediaBrowser.Common.Implementations.csproj
+++ b/MediaBrowser.Common.Implementations/MediaBrowser.Common.Implementations.csproj
@@ -35,9 +35,6 @@
     <RunPostBuildEvent>Always</RunPostBuildEvent>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="Mediabrowser.PluginSecurity">
-      <HintPath>..\ThirdParty\PluginSecurity\Mediabrowser.PluginSecurity.dll</HintPath>
-    </Reference>
     <Reference Include="NLog">
       <HintPath>..\packages\NLog.2.0.0.2000\lib\net40\NLog.dll</HintPath>
     </Reference>
@@ -79,6 +76,8 @@
     <Compile Include="ScheduledTasks\Tasks\DeleteLogFileTask.cs" />
     <Compile Include="ScheduledTasks\Tasks\ReloadLoggerTask.cs" />
     <Compile Include="ScheduledTasks\Tasks\SystemUpdateTask.cs" />
+    <Compile Include="Security\MBLicenseFile.cs" />
+    <Compile Include="Security\MBRegistration.cs" />
     <Compile Include="Security\PluginSecurityManager.cs" />
     <Compile Include="Serialization\JsonSerializer.cs" />
     <Compile Include="Serialization\XmlSerializer.cs" />
@@ -104,7 +103,6 @@
   <PropertyGroup>
     <PostBuildEvent>if $(ConfigurationName) == Release (
 xcopy "$(TargetPath)" "$(SolutionDir)\Nuget\dlls\" /y /d /r /i
-xcopy "$(TargetDir)Mediabrowser.PluginSecurity.dll" "$(SolutionDir)\Nuget\dlls\" /y /d /r /i
 )</PostBuildEvent>
   </PropertyGroup>
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
diff --git a/MediaBrowser.Common.Implementations/Security/MBLicenseFile.cs b/MediaBrowser.Common.Implementations/Security/MBLicenseFile.cs
new file mode 100644
index 0000000000..336ca78f03
--- /dev/null
+++ b/MediaBrowser.Common.Implementations/Security/MBLicenseFile.cs
@@ -0,0 +1,106 @@
+using MediaBrowser.Common.Configuration;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Security.Cryptography;
+using System.Text;
+
+namespace Mediabrowser.Common.Implementations.Security
+{
+    internal class MBLicenseFile
+    {
+        private readonly IApplicationPaths _appPaths;
+
+        private readonly string _filename;
+        public string RegKey
+        {
+            get { return _regKey; }
+            set
+            {
+                if (value != _regKey)
+                {
+                    //if key is changed - clear out our saved validations
+                    UpdateRecords.Clear();
+                    _regKey = value;
+                }
+            }
+        }
+
+        public string LegacyKey { get; set; }
+        private Dictionary<Guid, DateTime> UpdateRecords { get; set; }
+        private readonly object _lck = new object();
+        private string _regKey;
+
+        public MBLicenseFile(IApplicationPaths appPaths)
+        {
+            _appPaths = appPaths;
+
+            _filename = Path.Combine(_appPaths.ConfigurationDirectoryPath, "mb.lic");
+
+            UpdateRecords = new Dictionary<Guid, DateTime>();
+            Load();
+        }
+
+        public void AddRegCheck(string featureId)
+        {
+            using (var provider = new MD5CryptoServiceProvider())
+            {
+                UpdateRecords[new Guid(provider.ComputeHash(Encoding.Unicode.GetBytes(featureId)))] = DateTime.UtcNow;
+                Save();
+            }
+
+        }
+
+        public DateTime LastChecked(string featureId)
+        {
+            using (var provider = new MD5CryptoServiceProvider())
+            {
+                DateTime last;
+                lock(_lck) UpdateRecords.TryGetValue(new Guid(provider.ComputeHash(Encoding.Unicode.GetBytes(featureId))), out last);
+                return last < DateTime.UtcNow ? last : DateTime.MinValue;  // guard agains people just putting a large number in the file
+            }
+        }
+
+        private void Load()
+        {
+            string[] contents = null;
+            lock (_lck)
+            {
+                try
+                {
+                    contents = File.ReadAllLines(_filename);
+                }
+                catch (FileNotFoundException)
+                {
+                    (File.Create(_filename)).Close();
+                }
+            }
+            if (contents != null && contents.Length > 0)
+            {
+                //first line is reg key
+                RegKey = contents[0];
+                //next is legacy key
+                if (contents.Length > 1) LegacyKey = contents[1];
+                //the rest of the lines should be pairs of features and timestamps
+                for (var i = 2; i < contents.Length; i = i + 2)
+                {
+                    var feat = Guid.Parse(contents[i]);
+                    UpdateRecords[feat] = new DateTime(Convert.ToInt64(contents[i + 1]));
+                }
+            }
+        }
+
+        public void Save()
+        {
+            //build our array
+            var lines = new List<string> {RegKey, LegacyKey};
+            foreach (var pair in UpdateRecords)
+            {
+                lines.Add(pair.Key.ToString());
+                lines.Add(pair.Value.Ticks.ToString());
+            }
+
+            lock(_lck) File.WriteAllLines(_filename, lines);
+        }
+    }
+}
diff --git a/MediaBrowser.Common.Implementations/Security/MBRegistration.cs b/MediaBrowser.Common.Implementations/Security/MBRegistration.cs
new file mode 100644
index 0000000000..570a0429c7
--- /dev/null
+++ b/MediaBrowser.Common.Implementations/Security/MBRegistration.cs
@@ -0,0 +1,109 @@
+using Mediabrowser.Model.Entities;
+using MediaBrowser.Common.Configuration;
+using MediaBrowser.Common.Net;
+using MediaBrowser.Model.Serialization;
+using System;
+using System.Collections.Generic;
+using System.Management;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Mediabrowser.Common.Implementations.Security
+{
+    public static class MBRegistration
+    {
+
+        private static MBLicenseFile _licenseFile;
+        private const string MBValidateUrl = "http://mb3admin.com/admin/service/registration/validate";
+
+        private static IApplicationPaths _appPaths;
+
+        private static MBLicenseFile LicenseFile
+        {
+            get { return _licenseFile ?? (_licenseFile = new MBLicenseFile(_appPaths)); }
+        }
+
+        public static string SupporterKey
+        {
+            get { return LicenseFile.RegKey; }
+            set { LicenseFile.RegKey = value; LicenseFile.Save(); }
+        }
+
+        public static string LegacyKey
+        {
+            get { return LicenseFile.LegacyKey; }
+            set { LicenseFile.LegacyKey = value; LicenseFile.Save(); }
+        }
+
+        public static void Init(IApplicationPaths appPaths)
+        {
+            // Ugly alert (static init)
+
+            _appPaths = appPaths;
+        }
+
+        public static async Task<MBRegistrationRecord> GetRegistrationStatus(IHttpClient httpClient, IJsonSerializer jsonSerializer, string feature, string mb2Equivalent = null)
+        {
+            var mac = GetMacAddress();
+            var data = new Dictionary<string, string> {{"feature", feature}, {"key",SupporterKey}, {"mac",mac}, {"mb2equiv",mb2Equivalent}, {"legacykey", LegacyKey} };
+
+            var reg = new RegRecord();
+            try
+            {
+                using (var json = await httpClient.Post(MBValidateUrl, data, CancellationToken.None).ConfigureAwait(false))
+                {
+                    reg = jsonSerializer.DeserializeFromStream<RegRecord>(json);
+                }
+
+                if (reg.registered)
+                {
+                    LicenseFile.AddRegCheck(feature);
+                }
+
+            }
+            catch (Exception)
+            {
+                //if we have trouble obtaining from web - allow it if we've validated in the past 30 days
+                reg.registered = LicenseFile.LastChecked(feature) > DateTime.UtcNow.AddDays(-30);
+            }
+
+            return new MBRegistrationRecord {IsRegistered = reg.registered, ExpirationDate = reg.expDate, RegChecked = true};
+        }
+
+        /// <summary>
+        /// Returns MAC Address from first Network Card in Computer
+        /// </summary>
+        /// <returns>[string] MAC Address</returns>
+        public static string GetMacAddress()
+        {
+            var mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
+            var moc = mc.GetInstances();
+            var macAddress = String.Empty;
+            foreach (ManagementObject mo in moc)
+            {
+                if (macAddress == String.Empty)  // only return MAC Address from first card
+                {
+                    try
+                    {
+                        if ((bool)mo["IPEnabled"]) macAddress = mo["MacAddress"].ToString();
+                    }
+                    catch
+                    {
+                        mo.Dispose();
+                        return "";
+                    }
+                }
+                mo.Dispose();
+            }
+
+            return macAddress.Replace(":", "");
+        }
+    }
+
+    class RegRecord
+    {
+        public string featId { get; set; }
+        public bool registered { get; set; }
+        public DateTime expDate { get; set; }
+    }
+}
diff --git a/MediaBrowser.Common.Implementations/Security/PluginSecurityManager.cs b/MediaBrowser.Common.Implementations/Security/PluginSecurityManager.cs
index c7c3b3a576..c71cf3802b 100644
--- a/MediaBrowser.Common.Implementations/Security/PluginSecurityManager.cs
+++ b/MediaBrowser.Common.Implementations/Security/PluginSecurityManager.cs
@@ -2,8 +2,8 @@
 using MediaBrowser.Common.Configuration;
 using MediaBrowser.Common.Security;
 using MediaBrowser.Model.Serialization;
+using Mediabrowser.Common.Implementations.Security;
 using Mediabrowser.Model.Entities;
-using Mediabrowser.PluginSecurity;
 using MediaBrowser.Common.Net;
 using System;
 using System.Threading;