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|
//
// System.Reflection.Emit/AssemblyBuilder.cs
//
// Author:
// Paolo Molaro (lupus@ximian.com)
//
// (C) 2001 Ximian, Inc. http://www.ximian.com
//
//
// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Reflection;
using System.Resources;
using System.IO;
using System.Security.Policy;
using System.Runtime.Serialization;
using System.Globalization;
using System.Runtime.CompilerServices;
using System.Collections;
using System.Runtime.InteropServices;
using System.Security.Cryptography;
using System.Security.Permissions;
using Mono.Security;
using Mono.Security.Cryptography;
namespace System.Reflection.Emit {
internal struct RefEmitPermissionSet {
public SecurityAction action;
public string pset;
public RefEmitPermissionSet (SecurityAction action, string pset) {
this.action = action;
this.pset = pset;
}
}
internal struct MonoResource {
public byte[] data;
public string name;
public string filename;
public ResourceAttributes attrs;
public int offset;
}
internal struct MonoWin32Resource {
public int res_type;
public int res_id;
public int lang_id;
public byte[] data;
public MonoWin32Resource (int res_type, int res_id, int lang_id, byte[] data) {
this.res_type = res_type;
this.res_id = res_id;
this.lang_id = lang_id;
this.data = data;
}
}
public sealed class AssemblyBuilder : Assembly {
#region Sync with reflection.h
private IntPtr dynamic_assembly;
private MethodInfo entry_point;
private ModuleBuilder[] modules;
private string name;
private string dir;
private CustomAttributeBuilder[] cattrs;
private MonoResource[] resources;
byte[] public_key;
string version;
string culture;
uint algid;
uint flags;
PEFileKinds pekind = PEFileKinds.Dll;
bool delay_sign;
uint access;
Module[] loaded_modules;
MonoWin32Resource[] win32_resources;
#endregion
internal Type corlib_object_type = typeof (System.Object);
internal Type corlib_value_type = typeof (System.ValueType);
internal Type corlib_enum_type = typeof (System.Enum);
internal Type corlib_void_type = typeof (void);
ArrayList resource_writers = null;
Win32VersionResource version_res;
bool created;
bool is_module_only;
private Mono.Security.StrongName sn;
[MethodImplAttribute(MethodImplOptions.InternalCall)]
private static extern void basic_init (AssemblyBuilder ab);
internal AssemblyBuilder (AssemblyName n, string directory, AssemblyBuilderAccess access) {
name = n.Name;
if (directory == null || directory == String.Empty)
dir = Directory.GetCurrentDirectory ();
else
dir = directory;
this.access = (uint)access;
/* Set defaults from n */
if (n.CultureInfo != null) {
culture = n.CultureInfo.Name;
}
Version v = n.Version;
if (v != null) {
version = v.ToString ();
}
if (n.KeyPair != null) {
sn = n.KeyPair.StrongName ();
}
basic_init (this);
}
public override string CodeBase {
get {
throw not_supported ();
}
}
public override MethodInfo EntryPoint {
get {
return entry_point;
}
}
public override string Location {
get {
throw not_supported ();
}
}
#if NET_1_1
/* This is to keep signature compatibility with MS.NET */
public override string ImageRuntimeVersion {
get {
return base.ImageRuntimeVersion;
}
}
#endif
public void AddResourceFile (string name, string fileName)
{
AddResourceFile (name, fileName, ResourceAttributes.Public);
}
public void AddResourceFile (string name, string fileName, ResourceAttributes attribute)
{
AddResourceFile (name, fileName, attribute, true);
}
private void AddResourceFile (string name, string fileName, ResourceAttributes attribute, bool fileNeedsToExists)
{
check_name_and_filename (name, fileName, fileNeedsToExists);
// Resource files are created/searched under the assembly storage
// directory
if (dir != null)
fileName = Path.Combine (dir, fileName);
if (resources != null) {
MonoResource[] new_r = new MonoResource [resources.Length + 1];
System.Array.Copy(resources, new_r, resources.Length);
resources = new_r;
} else {
resources = new MonoResource [1];
}
int p = resources.Length - 1;
resources [p].name = name;
resources [p].filename = fileName;
resources [p].attrs = attribute;
}
internal void EmbedResourceFile (string name, string fileName)
{
EmbedResourceFile (name, fileName, ResourceAttributes.Public);
}
internal void EmbedResourceFile (string name, string fileName, ResourceAttributes attribute)
{
if (resources != null) {
MonoResource[] new_r = new MonoResource [resources.Length + 1];
System.Array.Copy(resources, new_r, resources.Length);
resources = new_r;
} else {
resources = new MonoResource [1];
}
int p = resources.Length - 1;
resources [p].name = name;
resources [p].attrs = attribute;
try {
FileStream s = new FileStream (fileName, FileMode.Open, FileAccess.Read);
long len = s.Length;
resources [p].data = new byte [len];
s.Read (resources [p].data, 0, (int)len);
s.Close ();
} catch {
/* do something */
}
}
internal void EmbedResource (string name, byte[] blob, ResourceAttributes attribute)
{
if (resources != null) {
MonoResource[] new_r = new MonoResource [resources.Length + 1];
System.Array.Copy(resources, new_r, resources.Length);
resources = new_r;
} else {
resources = new MonoResource [1];
}
int p = resources.Length - 1;
resources [p].name = name;
resources [p].attrs = attribute;
resources [p].data = blob;
}
public ModuleBuilder DefineDynamicModule (string name)
{
return DefineDynamicModule (name, name, false, true);
}
public ModuleBuilder DefineDynamicModule (string name, bool emitSymbolInfo)
{
return DefineDynamicModule (name, name, emitSymbolInfo, true);
}
public ModuleBuilder DefineDynamicModule(string name, string fileName)
{
return DefineDynamicModule (name, fileName, false, false);
}
public ModuleBuilder DefineDynamicModule (string name, string fileName,
bool emitSymbolInfo)
{
return DefineDynamicModule (name, fileName, emitSymbolInfo, false);
}
private ModuleBuilder DefineDynamicModule (string name, string fileName,
bool emitSymbolInfo, bool transient)
{
check_name_and_filename (name, fileName, false);
if (!transient) {
if (Path.GetExtension (fileName) == String.Empty)
throw new ArgumentException ("Module file name '" + fileName + "' must have file extension.");
if (!IsSave)
throw new NotSupportedException ("Persistable modules are not supported in a dynamic assembly created with AssemblyBuilderAccess.Run");
if (created)
throw new InvalidOperationException ("Assembly was already saved.");
}
ModuleBuilder r = new ModuleBuilder (this, name, fileName, emitSymbolInfo, transient);
if ((modules != null) && is_module_only)
throw new InvalidOperationException ("A module-only assembly can only contain one module.");
if (modules != null) {
ModuleBuilder[] new_modules = new ModuleBuilder [modules.Length + 1];
System.Array.Copy(modules, new_modules, modules.Length);
modules = new_modules;
} else {
modules = new ModuleBuilder [1];
}
modules [modules.Length - 1] = r;
return r;
}
[MethodImplAttribute(MethodImplOptions.InternalCall)]
private extern Module InternalAddModule (string fileName);
/*
* Mono extension to support /addmodule in mcs.
*/
internal Module AddModule (string fileName)
{
if (fileName == null)
throw new ArgumentNullException (fileName);
Module m = InternalAddModule (fileName);
if (loaded_modules != null) {
Module[] new_modules = new Module [loaded_modules.Length + 1];
System.Array.Copy (loaded_modules, new_modules, loaded_modules.Length);
loaded_modules = new_modules;
} else {
loaded_modules = new Module [1];
}
loaded_modules [loaded_modules.Length - 1] = m;
return m;
}
public IResourceWriter DefineResource (string name, string description, string fileName)
{
return DefineResource (name, description, fileName, ResourceAttributes.Public);
}
public IResourceWriter DefineResource (string name, string description,
string fileName, ResourceAttributes attribute)
{
IResourceWriter writer;
// description seems to be ignored
AddResourceFile (name, fileName, attribute, false);
writer = new ResourceWriter (fileName);
if (resource_writers == null)
resource_writers = new ArrayList ();
resource_writers.Add (writer);
return writer;
}
private void AddUnmanagedResource (Win32Resource res) {
MemoryStream ms = new MemoryStream ();
res.WriteTo (ms);
if (win32_resources != null) {
MonoWin32Resource[] new_res = new MonoWin32Resource [win32_resources.Length + 1];
System.Array.Copy (win32_resources, new_res, win32_resources.Length);
win32_resources = new_res;
}
else
win32_resources = new MonoWin32Resource [1];
win32_resources [win32_resources.Length - 1] = new MonoWin32Resource (res.Type.Id, res.Name.Id, res.Language, ms.ToArray ());
}
[MonoTODO]
public void DefineUnmanagedResource (byte[] resource)
{
if (resource == null)
throw new ArgumentNullException ("resource");
/*
* The format of the argument byte array is not documented
* so this method is impossible to implement.
*/
throw new NotImplementedException ();
}
public void DefineUnmanagedResource (string resourceFileName)
{
if (resourceFileName == null)
throw new ArgumentNullException ("resourceFileName");
if (resourceFileName == String.Empty)
throw new ArgumentException ("resourceFileName");
if (!File.Exists (resourceFileName) || Directory.Exists (resourceFileName))
throw new FileNotFoundException ("File '" + resourceFileName + "' does not exists or is a directory.");
using (FileStream fs = new FileStream (resourceFileName, FileMode.Open)) {
Win32ResFileReader reader = new Win32ResFileReader (fs);
foreach (Win32EncodedResource res in reader.ReadResources ()) {
if (res.Name.IsName || res.Type.IsName)
throw new InvalidOperationException ("resource files with named resources or non-default resource types are not supported.");
AddUnmanagedResource (res);
}
}
}
public void DefineVersionInfoResource ()
{
if (version_res != null)
throw new ArgumentException ("Native resource has already been defined.");
version_res = new Win32VersionResource (1, 0);
if (cattrs != null) {
foreach (CustomAttributeBuilder cb in cattrs) {
string attrname = cb.Ctor.ReflectedType.FullName;
if (attrname == "System.Reflection.AssemblyProductAttribute")
version_res.ProductName = cb.string_arg ();
else if (attrname == "System.Reflection.AssemblyCompanyAttribute")
version_res.CompanyName = cb.string_arg ();
else if (attrname == "System.Reflection.AssemblyCopyrightAttribute")
version_res.LegalCopyright = cb.string_arg ();
else if (attrname == "System.Reflection.AssemblyTrademarkAttribute")
version_res.LegalTrademarks = cb.string_arg ();
else if (attrname == "System.Reflection.AssemblyCultureAttribute")
version_res.FileLanguage = new CultureInfo (cb.string_arg ()).LCID;
else if (attrname == "System.Reflection.AssemblyFileVersionAttribute")
version_res.FileVersion = cb.string_arg ();
else if (attrname == "System.Reflection.AssemblyInformationalVersionAttribute")
version_res.ProductVersion = cb.string_arg ();
else if (attrname == "System.Reflection.AssemblyTitleAttribute")
version_res.FileDescription = cb.string_arg ();
else if (attrname == "System.Reflection.AssemblyDescriptionAttribute")
version_res.Comments = cb.string_arg ();
}
}
}
public void DefineVersionInfoResource (string product, string productVersion,
string company, string copyright, string trademark)
{
if (version_res != null)
throw new ArgumentException ("Native resource has already been defined.");
/*
* We can only create the resource later, when the file name and
* the binary version is known.
*/
version_res = new Win32VersionResource (1, 0);
version_res.ProductName = product;
version_res.ProductVersion = productVersion;
version_res.CompanyName = company;
version_res.LegalCopyright = copyright;
version_res.LegalTrademarks = trademark;
}
/*
* Mono extension to support /win32icon in mcs
*/
internal void DefineIconResource (string iconFileName)
{
if (iconFileName == null)
throw new ArgumentNullException ("iconFileName");
if (iconFileName == String.Empty)
throw new ArgumentException ("iconFileName");
if (!File.Exists (iconFileName) || Directory.Exists (iconFileName))
throw new FileNotFoundException ("File '" + iconFileName + "' does not exists or is a directory.");
using (FileStream fs = new FileStream (iconFileName, FileMode.Open)) {
Win32IconFileReader reader = new Win32IconFileReader (fs);
ICONDIRENTRY[] entries = reader.ReadIcons ();
Win32IconResource[] icons = new Win32IconResource [entries.Length];
for (int i = 0; i < entries.Length; ++i) {
icons [i] = new Win32IconResource (i + 1, 0, entries [i]);
AddUnmanagedResource (icons [i]);
}
Win32GroupIconResource group = new Win32GroupIconResource (1, 0, icons);
AddUnmanagedResource (group);
}
}
private void DefineVersionInfoResourceImpl (string fileName) {
// Add missing info
if (version_res.FileVersion == "0.0.0.0")
version_res.FileVersion = version;
version_res.InternalName = Path.GetFileNameWithoutExtension (fileName);
version_res.OriginalFilename = fileName;
AddUnmanagedResource (version_res);
}
public ModuleBuilder GetDynamicModule (string name)
{
if (name == null)
throw new ArgumentNullException ("name");
if (name == "")
throw new ArgumentException ("Name can't be null");
if (modules != null)
for (int i = 0; i < modules.Length; ++i)
if (modules [i].name == name)
return modules [i];
return null;
}
public override Type[] GetExportedTypes ()
{
throw not_supported ();
}
public override FileStream GetFile (string name)
{
throw not_supported ();
}
public override FileStream[] GetFiles(bool getResourceModules) {
throw not_supported ();
}
public override ManifestResourceInfo GetManifestResourceInfo(string resourceName) {
throw not_supported ();
}
public override string[] GetManifestResourceNames() {
throw not_supported ();
}
public override Stream GetManifestResourceStream(string name) {
throw not_supported ();
}
public override Stream GetManifestResourceStream(Type type, string name) {
throw not_supported ();
}
internal bool IsSave {
get {
return access != (uint)AssemblyBuilderAccess.Run;
}
}
internal string AssemblyDir {
get {
return dir;
}
}
/*
* Mono extension. If this is set, the assembly can only contain one
* module, access should be Save, and the saved image will not contain an
* assembly manifest.
*/
internal bool IsModuleOnly {
get {
return is_module_only;
}
set {
is_module_only = value;
}
}
public void Save (string assemblyFileName)
{
if (resource_writers != null) {
foreach (IResourceWriter writer in resource_writers) {
writer.Generate ();
writer.Close ();
}
}
// Create a main module if not already created
ModuleBuilder mainModule = null;
if (modules != null) {
foreach (ModuleBuilder module in modules)
if (module.FullyQualifiedName == assemblyFileName)
mainModule = module;
}
if (mainModule == null)
mainModule = DefineDynamicModule ("RefEmit_OnDiskManifestModule", assemblyFileName);
if (!is_module_only)
mainModule.IsMain = true;
/*
* Create a new entry point if the one specified
* by the user is in another module.
*/
if ((entry_point != null) && entry_point.DeclaringType.Module != mainModule) {
Type[] paramTypes;
if (entry_point.GetParameters ().Length == 1)
paramTypes = new Type [] { typeof (string) };
else
paramTypes = new Type [0];
MethodBuilder mb = mainModule.DefineGlobalMethod ("__EntryPoint$", MethodAttributes.Static|MethodAttributes.PrivateScope, entry_point.ReturnType, paramTypes);
ILGenerator ilgen = mb.GetILGenerator ();
if (paramTypes.Length == 1)
ilgen.Emit (OpCodes.Ldarg_0);
ilgen.Emit (OpCodes.Tailcall);
ilgen.Emit (OpCodes.Call, entry_point);
ilgen.Emit (OpCodes.Ret);
entry_point = mb;
}
if (version_res != null)
DefineVersionInfoResourceImpl (assemblyFileName);
if (sn != null) {
// runtime needs to value to embed it into the assembly
public_key = sn.PublicKey;
}
foreach (ModuleBuilder module in modules)
if (module != mainModule)
module.Save ();
// Write out the main module at the end, because it needs to
// contain the hash of the other modules
mainModule.Save ();
if ((sn != null) && (sn.CanSign)) {
sn.Sign (System.IO.Path.Combine (this.AssemblyDir, assemblyFileName));
}
created = true;
}
public void SetEntryPoint (MethodInfo entryMethod)
{
SetEntryPoint (entryMethod, PEFileKinds.ConsoleApplication);
}
public void SetEntryPoint (MethodInfo entryMethod, PEFileKinds fileKind)
{
if (entryMethod == null)
throw new ArgumentNullException ("entryMethod");
if (entryMethod.DeclaringType.Assembly != this)
throw new InvalidOperationException ("Entry method is not defined in the same assembly.");
entry_point = entryMethod;
pekind = fileKind;
}
public void SetCustomAttribute( CustomAttributeBuilder customBuilder)
{
if (customBuilder == null)
throw new ArgumentNullException ("customBuilder");
string attrname = customBuilder.Ctor.ReflectedType.FullName;
byte[] data;
int pos;
if (attrname == "System.Reflection.AssemblyVersionAttribute") {
version = create_assembly_version (customBuilder.string_arg ());
return;
} else if (attrname == "System.Reflection.AssemblyCultureAttribute") {
culture = customBuilder.string_arg ();
} else if (attrname == "System.Reflection.AssemblyAlgorithmIdAttribute") {
data = customBuilder.Data;
pos = 2;
algid = (uint)data [pos];
algid |= ((uint)data [pos + 1]) << 8;
algid |= ((uint)data [pos + 2]) << 16;
algid |= ((uint)data [pos + 3]) << 24;
} else if (attrname == "System.Reflection.AssemblyFlagsAttribute") {
data = customBuilder.Data;
pos = 2;
flags = (uint)data [pos];
flags |= ((uint)data [pos + 1]) << 8;
flags |= ((uint)data [pos + 2]) << 16;
flags |= ((uint)data [pos + 3]) << 24;
return;
}
if (cattrs != null) {
CustomAttributeBuilder[] new_array = new CustomAttributeBuilder [cattrs.Length + 1];
cattrs.CopyTo (new_array, 0);
new_array [cattrs.Length] = customBuilder;
cattrs = new_array;
} else {
cattrs = new CustomAttributeBuilder [1];
cattrs [0] = customBuilder;
}
}
public void SetCustomAttribute ( ConstructorInfo con, byte[] binaryAttribute) {
if (con == null)
throw new ArgumentNullException ("con");
if (binaryAttribute == null)
throw new ArgumentNullException ("binaryAttribute");
SetCustomAttribute (new CustomAttributeBuilder (con, binaryAttribute));
}
internal void SetCorlibTypeBuilders (Type corlib_object_type, Type corlib_value_type, Type corlib_enum_type) {
this.corlib_object_type = corlib_object_type;
this.corlib_value_type = corlib_value_type;
this.corlib_enum_type = corlib_enum_type;
}
internal void SetCorlibTypeBuilders (Type corlib_object_type, Type corlib_value_type, Type corlib_enum_type, Type corlib_void_type)
{
SetCorlibTypeBuilders (corlib_object_type, corlib_value_type, corlib_enum_type);
this.corlib_void_type = corlib_void_type;
}
private Exception not_supported () {
// Strange message but this is what MS.NET prints...
return new NotSupportedException ("The invoked member is not supported in a dynamic module.");
}
private void check_name_and_filename (string name, string fileName,
bool fileNeedsToExists) {
if (name == null)
throw new ArgumentNullException ("name");
if (fileName == null)
throw new ArgumentNullException ("fileName");
if (name == "")
throw new ArgumentException ("name cannot be empty", "name");
if (fileName == "")
throw new ArgumentException ("fileName cannot be empty", "fileName");
if (Path.GetFileName (fileName) != fileName)
throw new ArgumentException ("fileName '" + fileName + "' must not include a path.");
// Resource files are created/searched under the assembly storage
// directory
string fullFileName = fileName;
if (dir != null)
fullFileName = Path.Combine (dir, fileName);
if (fileNeedsToExists && !File.Exists (fullFileName))
throw new FileNotFoundException ("Could not find file '" + fileName + "'");
if (resources != null) {
for (int i = 0; i < resources.Length; ++i) {
if (resources [i].filename == fullFileName)
throw new ArgumentException ("Duplicate file name '" + fileName + "'");
if (resources [i].name == name)
throw new ArgumentException ("Duplicate name '" + name + "'");
}
}
if (modules != null) {
for (int i = 0; i < modules.Length; ++i) {
// Use fileName instead of fullFileName here
if (!modules [i].IsTransient () && (modules [i].FileName == fileName))
throw new ArgumentException ("Duplicate file name '" + fileName + "'");
if (modules [i].Name == name)
throw new ArgumentException ("Duplicate name '" + name + "'");
}
}
}
private String create_assembly_version (String version) {
String[] parts = version.Split ('.');
int[] ver = new int [4] { 0, 0, 0, 0 };
if ((parts.Length < 0) || (parts.Length > 4))
throw new ArgumentException ("The version specified '" + version + "' is invalid");
for (int i = 0; i < parts.Length; ++i) {
if (parts [i] == "*") {
DateTime now = DateTime.Now;
if (i == 2) {
ver [2] = (now - new DateTime (2000, 1, 1)).Days;
if (parts.Length == 3)
ver [3] = (now.Second + (now.Minute * 60) + (now.Hour * 3600)) / 2;
}
else
if (i == 3)
ver [3] = (now.Second + (now.Minute * 60) + (now.Hour * 3600)) / 2;
else
throw new ArgumentException ("The version specified '" + version + "' is invalid");
}
else {
try {
ver [i] = Int32.Parse (parts [i]);
}
catch (FormatException) {
throw new ArgumentException ("The version specified '" + version + "' is invalid");
}
}
}
return ver [0] + "." + ver [1] + "." + ver [2] + "." + ver [3];
}
}
}
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