From 040aa8daf6ecb8cc23a3b814c0fa96edb986d139 Mon Sep 17 00:00:00 2001
From: Matt Nadareski <mnadareski@outlook.com>
Date: Wed, 1 Sep 2021 14:06:19 -0700
Subject: [PATCH] Convert MediaMax CD-3 to section based

---
 BurnOutSharp/ProtectionType/MediaMaxCD3.cs | 95 ++++++++++++++++++----
 1 file changed, 79 insertions(+), 16 deletions(-)

diff --git a/BurnOutSharp/ProtectionType/MediaMaxCD3.cs b/BurnOutSharp/ProtectionType/MediaMaxCD3.cs
index c9a270fc..56aa7d3e 100644
--- a/BurnOutSharp/ProtectionType/MediaMaxCD3.cs
+++ b/BurnOutSharp/ProtectionType/MediaMaxCD3.cs
@@ -1,5 +1,8 @@
 using System.Collections.Concurrent;
 using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using BurnOutSharp.ExecutableType.Microsoft;
 using BurnOutSharp.Matching;
 
 namespace BurnOutSharp.ProtectionType
@@ -7,24 +10,84 @@ namespace BurnOutSharp.ProtectionType
     public class MediaMaxCD3 : IContentCheck, IPathCheck
     {
         /// <inheritdoc/>
-        public List<ContentMatchSet> GetContentMatchSets()
-        {
-            return new List<ContentMatchSet>
-            {
-                // Cd3Ctl
-                new ContentMatchSet(new byte?[] { 0x43, 0x64, 0x33, 0x43, 0x74, 0x6C }, "MediaMax CD-3"),
-
-                // DllInstallSbcp
-                new ContentMatchSet(new byte?[]
-                {
-                    0x44, 0x6C, 0x6C, 0x49, 0x6E, 0x73, 0x74, 0x61,
-                    0x6C, 0x6C, 0x53, 0x62, 0x63, 0x70
-                }, "MediaMax CD-3"),
-            };
-        }
+        public List<ContentMatchSet> GetContentMatchSets() => null;
 
         /// <inheritdoc/>
-        public string CheckContents(string file, byte[] fileContent, bool includeDebug = false) => null;
+        public string CheckContents(string file, byte[] fileContent, bool includeDebug = false)
+        {
+            // Get the sections from the executable, if possible
+            PortableExecutable pex = PortableExecutable.Deserialize(fileContent, 0);
+            var sections = pex?.SectionTable;
+            if (sections == null)
+                return null;
+
+            // Get the .rdata section, if it exists
+            var rdataSection = sections.FirstOrDefault(s => Encoding.ASCII.GetString(s.Name).StartsWith(".rdata"));
+            if (rdataSection != null)
+            {
+                int sectionAddr = (int)rdataSection.PointerToRawData;
+                int sectionEnd = sectionAddr + (int)rdataSection.VirtualSize;
+                var matchers = new List<ContentMatchSet>
+                {
+                    // DllInstallSbcp
+                    new ContentMatchSet(
+                        new ContentMatch(new byte?[]
+                        {
+                            0x44, 0x6C, 0x6C, 0x49, 0x6E, 0x73, 0x74, 0x61,
+                            0x6C, 0x6C, 0x53, 0x62, 0x63, 0x70
+                        }, start: sectionAddr, end: sectionEnd),
+                    "MediaMax CD-3"),
+                };
+
+                string match = MatchUtil.GetFirstMatch(file, fileContent, matchers, includeDebug);
+                if (!string.IsNullOrWhiteSpace(match))
+                    return match;
+            }
+
+            // Get the .rsrc section, if it exists
+            var rsrcSection = sections.FirstOrDefault(s => Encoding.ASCII.GetString(s.Name).StartsWith(".rsrc"));
+            if (rsrcSection != null)
+            {
+                int sectionAddr = (int)rsrcSection.PointerToRawData;
+                int sectionEnd = sectionAddr + (int)rsrcSection.VirtualSize;
+                var matchers = new List<ContentMatchSet>
+                {
+                    // Cd3Ctl
+                    new ContentMatchSet(
+                        new ContentMatch(new byte?[] { 0x43, 0x64, 0x33, 0x43, 0x74, 0x6C }, start: sectionAddr, end: sectionEnd),
+                    "MediaMax CD-3"),
+                };
+
+                string match = MatchUtil.GetFirstMatch(file, fileContent, matchers, includeDebug);
+                if (!string.IsNullOrWhiteSpace(match))
+                    return match;
+            }
+
+            // Get the .data section, if it exists
+            var dataSection = sections.FirstOrDefault(s => Encoding.ASCII.GetString(s.Name).StartsWith(".data"));
+            if (dataSection != null)
+            {
+                int sectionAddr = (int)dataSection.PointerToRawData;
+                int sectionEnd = sectionAddr + (int)dataSection.VirtualSize;
+                var matchers = new List<ContentMatchSet>
+                {
+                    // CD3 Launch Error
+                    new ContentMatchSet(
+                        new ContentMatch(new byte?[]
+                        {
+                            0x43, 0x44, 0x33, 0x20, 0x4C, 0x61, 0x75, 0x6E,
+                            0x63, 0x68, 0x20, 0x45, 0x72, 0x72, 0x6F, 0x72
+                        }, start: sectionAddr, end: sectionEnd),
+                    "MediaMax CD-3"),
+                };
+
+                string match = MatchUtil.GetFirstMatch(file, fileContent, matchers, includeDebug);
+                if (!string.IsNullOrWhiteSpace(match))
+                    return match;
+            }
+
+            return null;
+        }
 
         /// <inheritdoc/>
         public ConcurrentQueue<string> CheckDirectoryPath(string path, IEnumerable<string> files)