From 2c07e1ace2ec7f78ef37e481706481c6918dc449 Mon Sep 17 00:00:00 2001
From: Natalia Portillo <claunia@claunia.com>
Date: Mon, 22 Jul 2019 01:08:05 +0100
Subject: [PATCH] Handle associated files in ISO9660.

---
 .../.idea/contentModel.xml                    | 13 +++++----
 DiscImageChef.Filesystems/ISO9660/Dir.cs      | 27 ++++++++++++++++++-
 .../ISO9660/Structs/Internal.cs               | 17 ++++++------
 3 files changed, 43 insertions(+), 14 deletions(-)

diff --git a/.idea/.idea.DiscImageChef/.idea/contentModel.xml b/.idea/.idea.DiscImageChef/.idea/contentModel.xml
index 54d8d6c54..7354018f0 100644
--- a/.idea/.idea.DiscImageChef/.idea/contentModel.xml
+++ b/.idea/.idea.DiscImageChef/.idea/contentModel.xml
@@ -35,7 +35,6 @@
           <e p="Entropy.cs" t="Include" />
           <e p="ExtractFiles.cs" t="Include" />
           <e p="Formats.cs" t="Include" />
-          <e p="Gui.cs" t="Include" />
           <e p="ImageInfo.cs" t="Include" />
           <e p="ListDevices.cs" t="Include" />
           <e p="ListEncodings.cs" t="Include" />
@@ -61,7 +60,7 @@
         <e p="bin" t="ExcludeRecursive" />
         <e p="obj" t="ExcludeRecursive">
           <e p="Debug" t="Include">
-            <e p="net461" t="Include">
+            <e p="netcoreapp2.0" t="Include">
               <e p="DiscImageChef.AssemblyInfo.cs" t="Include" />
             </e>
           </e>
@@ -76,7 +75,6 @@
         <e p="DiscImageChef.Checksums.csproj" t="IncludeRecursive" />
         <e p="FletcherContext.cs" t="Include" />
         <e p="MD5Context.cs" t="Include" />
-        <e p="RIPEMD160Context.cs" t="Include" />
         <e p="ReedSolomon.cs" t="Include" />
         <e p="Register.cs" t="Include" />
         <e p="SHA1Context.cs" t="Include" />
@@ -1303,27 +1301,33 @@
             <e p="ElTorito.cs" t="Include" />
             <e p="HighSierra.cs" t="Include" />
             <e p="ISO.cs" t="Include" />
+            <e p="Internal.cs" t="Include" />
             <e p="RRIP.cs" t="Include" />
             <e p="SUSP.cs" t="Include" />
             <e p="XA.cs" t="Include" />
             <e p="Ziso.cs" t="Include" />
           </e>
+          <e p="Date.cs" t="Include" />
+          <e p="Dir.cs" t="Include" />
+          <e p="File.cs" t="Include" />
           <e p="ISO9660.cs" t="Include" />
           <e p="Info.cs" t="Include" />
           <e p="Structs" t="Include">
             <e p="Amiga.cs" t="Include" />
             <e p="Apple.cs" t="Include" />
             <e p="CDi.cs" t="Include" />
-            <e p="Common.cs" t="Include" />
             <e p="ElTorito.cs" t="Include" />
             <e p="HighSierra.cs" t="Include" />
             <e p="ISO.cs" t="Include" />
+            <e p="Internal.cs" t="Include" />
             <e p="Joliet.cs" t="Include" />
             <e p="RRIP.cs" t="Include" />
             <e p="SUSP.cs" t="Include" />
             <e p="XA.cs" t="Include" />
             <e p="Ziso.cs" t="Include" />
           </e>
+          <e p="Super.cs" t="Include" />
+          <e p="Xattr.cs" t="Include" />
         </e>
         <e p="JFS.cs" t="Include" />
         <e p="LIF.cs" t="Include" />
@@ -2074,7 +2078,6 @@
           <e p="CRC32.cs" t="Include" />
           <e p="CRC64.cs" t="Include" />
           <e p="MD5.cs" t="Include" />
-          <e p="RIPEMD160.cs" t="Include" />
           <e p="SHA1.cs" t="Include" />
           <e p="SHA256.cs" t="Include" />
           <e p="SHA384.cs" t="Include" />
diff --git a/DiscImageChef.Filesystems/ISO9660/Dir.cs b/DiscImageChef.Filesystems/ISO9660/Dir.cs
index 7286dc7da..49f810a70 100644
--- a/DiscImageChef.Filesystems/ISO9660/Dir.cs
+++ b/DiscImageChef.Filesystems/ISO9660/Dir.cs
@@ -210,7 +210,32 @@ namespace DiscImageChef.Filesystems.ISO9660
                 };
 
                 // TODO: Multi-extent files
-                if(!entries.ContainsKey(entry.IsoFilename)) entries.Add(entry.IsoFilename, entry);
+                if(entry.Flags.HasFlag(FileFlags.Associated))
+                {
+                    // TODO: Detect if Apple extensions, as associated files contain the resource fork there
+
+                    if(entries.ContainsKey(entry.IsoFilename)) entries[entry.IsoFilename].AssociatedFile = entry;
+                    else
+                        entries[entry.IsoFilename] = new DecodedDirectoryEntry
+                        {
+                            Extent               = 0,
+                            Size                 = 0,
+                            Flags                = record.flags ^ FileFlags.Associated,
+                            FileUnitSize         = 0,
+                            Interleave           = 0,
+                            VolumeSequenceNumber = record.volume_sequence_number,
+                            IsoFilename =
+                                Encoding.ASCII.GetString(data, entryOff + DirectoryRecordSize, record.name_len),
+                            Timestamp      = DecodeIsoDateTime(record.date),
+                            AssociatedFile = entry
+                        };
+                }
+                else
+                {
+                    if(entries.ContainsKey(entry.IsoFilename))
+                        entry.AssociatedFile = entries[entry.IsoFilename].AssociatedFile;
+                    entries[entry.IsoFilename] = entry;
+                }
 
                 entryOff += record.length;
             }
diff --git a/DiscImageChef.Filesystems/ISO9660/Structs/Internal.cs b/DiscImageChef.Filesystems/ISO9660/Structs/Internal.cs
index f3067a3a0..8c13a9a51 100644
--- a/DiscImageChef.Filesystems/ISO9660/Structs/Internal.cs
+++ b/DiscImageChef.Filesystems/ISO9660/Structs/Internal.cs
@@ -57,14 +57,15 @@ namespace DiscImageChef.Filesystems.ISO9660
 
         class DecodedDirectoryEntry
         {
-            public uint      Extent;
-            public byte      FileUnitSize;
-            public FileFlags Flags;
-            public byte      Interleave;
-            public string    IsoFilename;
-            public uint      Size;
-            public DateTime? Timestamp;
-            public ushort    VolumeSequenceNumber;
+            public DecodedDirectoryEntry AssociatedFile;
+            public uint                  Extent;
+            public byte                  FileUnitSize;
+            public FileFlags             Flags;
+            public byte                  Interleave;
+            public string                IsoFilename;
+            public uint                  Size;
+            public DateTime?             Timestamp;
+            public ushort                VolumeSequenceNumber;
 
             public override string ToString() => IsoFilename;
         }