Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / ndp / fx / src / CompMod / System / CodeDOM / Compiler / Executor.cs / 1 / Executor.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.CodeDom.Compiler {
using System.Diagnostics;
using System;
using System.ComponentModel;
using System.Text;
using System.Threading;
using System.IO;
using System.Collections;
using System.Collections.Specialized;
using System.Reflection;
using System.Runtime.InteropServices;
using System.CodeDom;
using System.Security;
using System.Security.Permissions;
using System.Security.Principal;
using Microsoft.Win32;
using Microsoft.Win32.SafeHandles;
using System.Globalization;
using System.Runtime.CompilerServices;
using System.Runtime.ConstrainedExecution;
///
///
/// Provides command execution functions for the CodeDom compiler.
///
///
[PermissionSet(SecurityAction.LinkDemand, Name="FullTrust")]
[PermissionSet(SecurityAction.InheritanceDemand, Name="FullTrust")]
public sealed class Executor {
// How long (in milliseconds) do we wait for the program to terminate
private const int ProcessTimeOut = 600000;
private Executor() {
}
///
///
/// Gets the runtime install directory.
///
///
internal static string GetRuntimeInstallDirectory() {
return RuntimeEnvironment.GetRuntimeDirectory();
}
private static FileStream CreateInheritedFile(string file) {
return new FileStream(file, FileMode.CreateNew, FileAccess.Write, FileShare.Read | FileShare.Inheritable);
}
///
///
public static void ExecWait(string cmd, TempFileCollection tempFiles) {
string outputName = null;
string errorName = null;
ExecWaitWithCapture(null, cmd, tempFiles, ref outputName, ref errorName);
}
///
/// [To be supplied.]
///
public static int ExecWaitWithCapture(string cmd, TempFileCollection tempFiles, ref string outputName, ref string errorName) {
return ExecWaitWithCapture(null, cmd, Environment.CurrentDirectory, tempFiles, ref outputName, ref errorName, null);
}
///
/// [To be supplied.]
///
public static int ExecWaitWithCapture(string cmd, string currentDir, TempFileCollection tempFiles, ref string outputName, ref string errorName) {
return ExecWaitWithCapture(null, cmd, currentDir, tempFiles, ref outputName, ref errorName, null);
}
///
/// [To be supplied.]
///
public static int ExecWaitWithCapture(IntPtr userToken, string cmd, TempFileCollection tempFiles, ref string outputName, ref string errorName) {
return ExecWaitWithCapture(new SafeUserTokenHandle(userToken, false), cmd, Environment.CurrentDirectory, tempFiles, ref outputName, ref errorName, null);
}
///
/// [To be supplied.]
///
public static int ExecWaitWithCapture(IntPtr userToken, string cmd, string currentDir, TempFileCollection tempFiles, ref string outputName, ref string errorName) {
return ExecWaitWithCapture(new SafeUserTokenHandle(userToken, false), cmd, Environment.CurrentDirectory, tempFiles, ref outputName, ref errorName, null);
}
///
/// [To be supplied.]
///
internal static int ExecWaitWithCapture(SafeUserTokenHandle userToken, string cmd, string currentDir, TempFileCollection tempFiles, ref string outputName, ref string errorName, string trueCmdLine) {
int retValue = 0;
// Undo any current impersonation, call ExecWaitWithCaptureUnimpersonated, and reimpersonate
#if !FEATURE_PAL
// the extra try-catch is here to mitigate exception filter injection attacks.
try {
WindowsImpersonationContext impersonation = RevertImpersonation();
try {
#endif
// Execute the process
retValue = ExecWaitWithCaptureUnimpersonated(userToken, cmd, currentDir, tempFiles, ref outputName, ref errorName, trueCmdLine);
#if !FEATURE_PAL
} finally {
ReImpersonate(impersonation);
}
}
catch {
throw;
}
#endif
return retValue;
}
private static unsafe int ExecWaitWithCaptureUnimpersonated(SafeUserTokenHandle userToken, string cmd, string currentDir, TempFileCollection tempFiles, ref string outputName, ref string errorName, string trueCmdLine) {
IntSecurity.UnmanagedCode.Demand();
FileStream output;
FileStream error;
int retValue = 0;
if (outputName == null || outputName.Length == 0)
outputName = tempFiles.AddExtension("out");
if (errorName == null || errorName.Length == 0)
errorName = tempFiles.AddExtension("err");
// Create the files
output = CreateInheritedFile(outputName);
error = CreateInheritedFile(errorName);
bool success = false;
SafeNativeMethods.PROCESS_INFORMATION pi = new SafeNativeMethods.PROCESS_INFORMATION();
SafeProcessHandle procSH = new SafeProcessHandle();
SafeThreadHandle threadSH = new SafeThreadHandle();
SafeUserTokenHandle primaryToken = null;
try {
// Output the command line...
StreamWriter sw = new StreamWriter(output, Encoding.UTF8);
sw.Write(currentDir);
sw.Write("> ");
// 'true' command line is used in case the command line points to
// a response file
sw.WriteLine(trueCmdLine != null ? trueCmdLine : cmd);
sw.WriteLine();
sw.WriteLine();
sw.Flush();
NativeMethods.STARTUPINFO si = new NativeMethods.STARTUPINFO();
si.cb = Marshal.SizeOf(si);
#if FEATURE_PAL
si.dwFlags = NativeMethods.STARTF_USESTDHANDLES;
#else //!FEATURE_PAL
si.dwFlags = NativeMethods.STARTF_USESTDHANDLES | NativeMethods.STARTF_USESHOWWINDOW;
si.wShowWindow = NativeMethods.SW_HIDE;
#endif //!FEATURE_PAL
si.hStdOutput = output.SafeFileHandle;
si.hStdError = error.SafeFileHandle;
si.hStdInput = new SafeFileHandle(UnsafeNativeMethods.GetStdHandle(NativeMethods.STD_INPUT_HANDLE), false);
//
// Prepare the environment
//
#if PLATFORM_UNIX
StringDictionary environment = new CaseSensitiveStringDictionary();
#else
StringDictionary environment = new StringDictionary ();
#endif // PLATFORM_UNIX
// Add the current environment
foreach ( DictionaryEntry entry in Environment.GetEnvironmentVariables () )
environment.Add ( (string) entry.Key, (string) entry.Value );
// Add the flag to indicate restricted security in the process
environment["_ClrRestrictSecAttributes"] = "1";
#if DEBUG
environment["OANOCACHE"] = "1";
#endif
// set up the environment block parameter
byte[] environmentBytes = EnvironmentBlock.ToByteArray(environment, false);
fixed (byte* environmentBytesPtr = environmentBytes) {
IntPtr environmentPtr = new IntPtr((void*)environmentBytesPtr);
if (userToken == null || userToken.IsInvalid) {
RuntimeHelpers.PrepareConstrainedRegions();
try {} finally {
success = NativeMethods.CreateProcess(
null, // String lpApplicationName,
new StringBuilder(cmd), // String lpCommandLine,
null, // SECURITY_ATTRIBUTES lpProcessAttributes,
null, // SECURITY_ATTRIBUTES lpThreadAttributes,
true, // bool bInheritHandles,
0, // int dwCreationFlags,
environmentPtr, // int lpEnvironment,
currentDir, // String lpCurrentDirectory,
si, // STARTUPINFO lpStartupInfo,
pi); // PROCESS_INFORMATION lpProcessInformation);
if ( pi.hProcess!= (IntPtr)0 && pi.hProcess!= (IntPtr)NativeMethods.INVALID_HANDLE_VALUE)
procSH.InitialSetHandle(pi.hProcess);
if ( pi.hThread != (IntPtr)0 && pi.hThread != (IntPtr)NativeMethods.INVALID_HANDLE_VALUE)
threadSH.InitialSetHandle(pi.hThread);
}
}
else {
#if FEATURE_PAL
throw new NotSupportedException();
#else
success = SafeUserTokenHandle.DuplicateTokenEx(
userToken,
NativeMethods.TOKEN_ALL_ACCESS,
null,
NativeMethods.IMPERSONATION_LEVEL_SecurityImpersonation,
NativeMethods.TOKEN_TYPE_TokenPrimary,
out primaryToken
);
if (success) {
RuntimeHelpers.PrepareConstrainedRegions();
try {} finally {
success = NativeMethods.CreateProcessAsUser(
primaryToken, // int token,
null, // String lpApplicationName,
cmd, // String lpCommandLine,
null, // SECURITY_ATTRIBUTES lpProcessAttributes,
null, // SECURITY_ATTRIBUTES lpThreadAttributes,
true, // bool bInheritHandles,
0, // int dwCreationFlags,
new HandleRef(null, environmentPtr), // int lpEnvironment,
currentDir, // String lpCurrentDirectory,
si, // STARTUPINFO lpStartupInfo,
pi); // PROCESS_INFORMATION lpProcessInformation);
if ( pi.hProcess!= (IntPtr)0 && pi.hProcess!= (IntPtr)NativeMethods.INVALID_HANDLE_VALUE)
procSH.InitialSetHandle(pi.hProcess);
if ( pi.hThread != (IntPtr)0 && pi.hThread != (IntPtr)NativeMethods.INVALID_HANDLE_VALUE)
threadSH.InitialSetHandle(pi.hThread);
}
}
#endif // !FEATURE_PAL
}
}
}
finally {
// Close the file handles
if (!success && (primaryToken != null && !primaryToken.IsInvalid)) {
primaryToken.Close();
primaryToken = null;
}
output.Close();
error.Close();
}
if (success) {
try {
int ret = NativeMethods.WaitForSingleObject(procSH, ProcessTimeOut);
// Check for timeout
if (ret == NativeMethods.WAIT_TIMEOUT) {
throw new ExternalException(SR.GetString(SR.ExecTimeout, cmd), NativeMethods.WAIT_TIMEOUT);
}
if (ret != NativeMethods.WAIT_OBJECT_0) {
throw new ExternalException(SR.GetString(SR.ExecBadreturn, cmd), Marshal.GetLastWin32Error());
}
// Check the process's exit code
int status = NativeMethods.STILL_ACTIVE;
if (!NativeMethods.GetExitCodeProcess(procSH, out status)) {
throw new ExternalException(SR.GetString(SR.ExecCantGetRetCode, cmd), Marshal.GetLastWin32Error());
}
retValue = status;
}
finally {
procSH.Close();
threadSH.Close();
if (primaryToken != null && !primaryToken.IsInvalid)
primaryToken.Close();
}
}
else {
throw new ExternalException(SR.GetString(SR.ExecCantExec, cmd), Marshal.GetLastWin32Error());
}
return retValue;
}
#if !FEATURE_PAL
internal static WindowsImpersonationContext RevertImpersonation() {
new SecurityPermission(SecurityPermissionFlag.ControlPrincipal).Assert();
return WindowsIdentity.Impersonate(new IntPtr(0));
}
#endif // !FEATURE_PAL
#if !FEATURE_PAL
internal static void ReImpersonate(WindowsImpersonationContext impersonation){
impersonation.Undo();
}
#endif // !FEATURE_PAL
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.CodeDom.Compiler {
using System.Diagnostics;
using System;
using System.ComponentModel;
using System.Text;
using System.Threading;
using System.IO;
using System.Collections;
using System.Collections.Specialized;
using System.Reflection;
using System.Runtime.InteropServices;
using System.CodeDom;
using System.Security;
using System.Security.Permissions;
using System.Security.Principal;
using Microsoft.Win32;
using Microsoft.Win32.SafeHandles;
using System.Globalization;
using System.Runtime.CompilerServices;
using System.Runtime.ConstrainedExecution;
///
///
/// Provides command execution functions for the CodeDom compiler.
///
///
[PermissionSet(SecurityAction.LinkDemand, Name="FullTrust")]
[PermissionSet(SecurityAction.InheritanceDemand, Name="FullTrust")]
public sealed class Executor {
// How long (in milliseconds) do we wait for the program to terminate
private const int ProcessTimeOut = 600000;
private Executor() {
}
///
///
/// Gets the runtime install directory.
///
///
internal static string GetRuntimeInstallDirectory() {
return RuntimeEnvironment.GetRuntimeDirectory();
}
private static FileStream CreateInheritedFile(string file) {
return new FileStream(file, FileMode.CreateNew, FileAccess.Write, FileShare.Read | FileShare.Inheritable);
}
///
///
public static void ExecWait(string cmd, TempFileCollection tempFiles) {
string outputName = null;
string errorName = null;
ExecWaitWithCapture(null, cmd, tempFiles, ref outputName, ref errorName);
}
///
/// [To be supplied.]
///
public static int ExecWaitWithCapture(string cmd, TempFileCollection tempFiles, ref string outputName, ref string errorName) {
return ExecWaitWithCapture(null, cmd, Environment.CurrentDirectory, tempFiles, ref outputName, ref errorName, null);
}
///
/// [To be supplied.]
///
public static int ExecWaitWithCapture(string cmd, string currentDir, TempFileCollection tempFiles, ref string outputName, ref string errorName) {
return ExecWaitWithCapture(null, cmd, currentDir, tempFiles, ref outputName, ref errorName, null);
}
///
/// [To be supplied.]
///
public static int ExecWaitWithCapture(IntPtr userToken, string cmd, TempFileCollection tempFiles, ref string outputName, ref string errorName) {
return ExecWaitWithCapture(new SafeUserTokenHandle(userToken, false), cmd, Environment.CurrentDirectory, tempFiles, ref outputName, ref errorName, null);
}
///
/// [To be supplied.]
///
public static int ExecWaitWithCapture(IntPtr userToken, string cmd, string currentDir, TempFileCollection tempFiles, ref string outputName, ref string errorName) {
return ExecWaitWithCapture(new SafeUserTokenHandle(userToken, false), cmd, Environment.CurrentDirectory, tempFiles, ref outputName, ref errorName, null);
}
///
/// [To be supplied.]
///
internal static int ExecWaitWithCapture(SafeUserTokenHandle userToken, string cmd, string currentDir, TempFileCollection tempFiles, ref string outputName, ref string errorName, string trueCmdLine) {
int retValue = 0;
// Undo any current impersonation, call ExecWaitWithCaptureUnimpersonated, and reimpersonate
#if !FEATURE_PAL
// the extra try-catch is here to mitigate exception filter injection attacks.
try {
WindowsImpersonationContext impersonation = RevertImpersonation();
try {
#endif
// Execute the process
retValue = ExecWaitWithCaptureUnimpersonated(userToken, cmd, currentDir, tempFiles, ref outputName, ref errorName, trueCmdLine);
#if !FEATURE_PAL
} finally {
ReImpersonate(impersonation);
}
}
catch {
throw;
}
#endif
return retValue;
}
private static unsafe int ExecWaitWithCaptureUnimpersonated(SafeUserTokenHandle userToken, string cmd, string currentDir, TempFileCollection tempFiles, ref string outputName, ref string errorName, string trueCmdLine) {
IntSecurity.UnmanagedCode.Demand();
FileStream output;
FileStream error;
int retValue = 0;
if (outputName == null || outputName.Length == 0)
outputName = tempFiles.AddExtension("out");
if (errorName == null || errorName.Length == 0)
errorName = tempFiles.AddExtension("err");
// Create the files
output = CreateInheritedFile(outputName);
error = CreateInheritedFile(errorName);
bool success = false;
SafeNativeMethods.PROCESS_INFORMATION pi = new SafeNativeMethods.PROCESS_INFORMATION();
SafeProcessHandle procSH = new SafeProcessHandle();
SafeThreadHandle threadSH = new SafeThreadHandle();
SafeUserTokenHandle primaryToken = null;
try {
// Output the command line...
StreamWriter sw = new StreamWriter(output, Encoding.UTF8);
sw.Write(currentDir);
sw.Write("> ");
// 'true' command line is used in case the command line points to
// a response file
sw.WriteLine(trueCmdLine != null ? trueCmdLine : cmd);
sw.WriteLine();
sw.WriteLine();
sw.Flush();
NativeMethods.STARTUPINFO si = new NativeMethods.STARTUPINFO();
si.cb = Marshal.SizeOf(si);
#if FEATURE_PAL
si.dwFlags = NativeMethods.STARTF_USESTDHANDLES;
#else //!FEATURE_PAL
si.dwFlags = NativeMethods.STARTF_USESTDHANDLES | NativeMethods.STARTF_USESHOWWINDOW;
si.wShowWindow = NativeMethods.SW_HIDE;
#endif //!FEATURE_PAL
si.hStdOutput = output.SafeFileHandle;
si.hStdError = error.SafeFileHandle;
si.hStdInput = new SafeFileHandle(UnsafeNativeMethods.GetStdHandle(NativeMethods.STD_INPUT_HANDLE), false);
//
// Prepare the environment
//
#if PLATFORM_UNIX
StringDictionary environment = new CaseSensitiveStringDictionary();
#else
StringDictionary environment = new StringDictionary ();
#endif // PLATFORM_UNIX
// Add the current environment
foreach ( DictionaryEntry entry in Environment.GetEnvironmentVariables () )
environment.Add ( (string) entry.Key, (string) entry.Value );
// Add the flag to indicate restricted security in the process
environment["_ClrRestrictSecAttributes"] = "1";
#if DEBUG
environment["OANOCACHE"] = "1";
#endif
// set up the environment block parameter
byte[] environmentBytes = EnvironmentBlock.ToByteArray(environment, false);
fixed (byte* environmentBytesPtr = environmentBytes) {
IntPtr environmentPtr = new IntPtr((void*)environmentBytesPtr);
if (userToken == null || userToken.IsInvalid) {
RuntimeHelpers.PrepareConstrainedRegions();
try {} finally {
success = NativeMethods.CreateProcess(
null, // String lpApplicationName,
new StringBuilder(cmd), // String lpCommandLine,
null, // SECURITY_ATTRIBUTES lpProcessAttributes,
null, // SECURITY_ATTRIBUTES lpThreadAttributes,
true, // bool bInheritHandles,
0, // int dwCreationFlags,
environmentPtr, // int lpEnvironment,
currentDir, // String lpCurrentDirectory,
si, // STARTUPINFO lpStartupInfo,
pi); // PROCESS_INFORMATION lpProcessInformation);
if ( pi.hProcess!= (IntPtr)0 && pi.hProcess!= (IntPtr)NativeMethods.INVALID_HANDLE_VALUE)
procSH.InitialSetHandle(pi.hProcess);
if ( pi.hThread != (IntPtr)0 && pi.hThread != (IntPtr)NativeMethods.INVALID_HANDLE_VALUE)
threadSH.InitialSetHandle(pi.hThread);
}
}
else {
#if FEATURE_PAL
throw new NotSupportedException();
#else
success = SafeUserTokenHandle.DuplicateTokenEx(
userToken,
NativeMethods.TOKEN_ALL_ACCESS,
null,
NativeMethods.IMPERSONATION_LEVEL_SecurityImpersonation,
NativeMethods.TOKEN_TYPE_TokenPrimary,
out primaryToken
);
if (success) {
RuntimeHelpers.PrepareConstrainedRegions();
try {} finally {
success = NativeMethods.CreateProcessAsUser(
primaryToken, // int token,
null, // String lpApplicationName,
cmd, // String lpCommandLine,
null, // SECURITY_ATTRIBUTES lpProcessAttributes,
null, // SECURITY_ATTRIBUTES lpThreadAttributes,
true, // bool bInheritHandles,
0, // int dwCreationFlags,
new HandleRef(null, environmentPtr), // int lpEnvironment,
currentDir, // String lpCurrentDirectory,
si, // STARTUPINFO lpStartupInfo,
pi); // PROCESS_INFORMATION lpProcessInformation);
if ( pi.hProcess!= (IntPtr)0 && pi.hProcess!= (IntPtr)NativeMethods.INVALID_HANDLE_VALUE)
procSH.InitialSetHandle(pi.hProcess);
if ( pi.hThread != (IntPtr)0 && pi.hThread != (IntPtr)NativeMethods.INVALID_HANDLE_VALUE)
threadSH.InitialSetHandle(pi.hThread);
}
}
#endif // !FEATURE_PAL
}
}
}
finally {
// Close the file handles
if (!success && (primaryToken != null && !primaryToken.IsInvalid)) {
primaryToken.Close();
primaryToken = null;
}
output.Close();
error.Close();
}
if (success) {
try {
int ret = NativeMethods.WaitForSingleObject(procSH, ProcessTimeOut);
// Check for timeout
if (ret == NativeMethods.WAIT_TIMEOUT) {
throw new ExternalException(SR.GetString(SR.ExecTimeout, cmd), NativeMethods.WAIT_TIMEOUT);
}
if (ret != NativeMethods.WAIT_OBJECT_0) {
throw new ExternalException(SR.GetString(SR.ExecBadreturn, cmd), Marshal.GetLastWin32Error());
}
// Check the process's exit code
int status = NativeMethods.STILL_ACTIVE;
if (!NativeMethods.GetExitCodeProcess(procSH, out status)) {
throw new ExternalException(SR.GetString(SR.ExecCantGetRetCode, cmd), Marshal.GetLastWin32Error());
}
retValue = status;
}
finally {
procSH.Close();
threadSH.Close();
if (primaryToken != null && !primaryToken.IsInvalid)
primaryToken.Close();
}
}
else {
throw new ExternalException(SR.GetString(SR.ExecCantExec, cmd), Marshal.GetLastWin32Error());
}
return retValue;
}
#if !FEATURE_PAL
internal static WindowsImpersonationContext RevertImpersonation() {
new SecurityPermission(SecurityPermissionFlag.ControlPrincipal).Assert();
return WindowsIdentity.Impersonate(new IntPtr(0));
}
#endif // !FEATURE_PAL
#if !FEATURE_PAL
internal static void ReImpersonate(WindowsImpersonationContext impersonation){
impersonation.Undo();
}
#endif // !FEATURE_PAL
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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