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// Licensed under the MIT License.
#nullable enable
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Diagnostics;
using System.Globalization;
using System.IO;
using System.Management.Automation;
using System.Management.Automation.Configuration;
using System.Management.Automation.Host;
using System.Management.Automation.Internal;
using System.Management.Automation.Language;
using System.Management.Automation.Runspaces;
using System.Security;
using System.Text;
using Dbg = System.Management.Automation.Diagnostics;
namespace Microsoft.PowerShell
{
/// <summary>
/// Null class implementation of PSHostUserInterface used when no console is available and when PowerShell
/// is run in servmode where no console is needed.
/// </summary>
internal class NullHostUserInterface : PSHostUserInterface
{
/// <summary>
/// RawUI.
/// </summary>
public override PSHostRawUserInterface? RawUI
=> null;
/// <summary>
/// Prompt.
/// </summary>
/// <param name="caption"></param>
/// <param name="message"></param>
/// <param name="descriptions"></param>
/// <returns></returns>
public override Dictionary<string, PSObject> Prompt(string caption, string message, Collection<FieldDescription> descriptions)
=> throw new PSNotImplementedException();
/// <summary>
/// PromptForChoice.
/// </summary>
/// <param name="caption"></param>
/// <param name="message"></param>
/// <param name="choices"></param>
/// <param name="defaultChoice"></param>
/// <returns></returns>
public override int PromptForChoice(string caption, string message, Collection<ChoiceDescription> choices, int defaultChoice)
=> throw new PSNotImplementedException();
/// <summary>
/// PromptForCredential.
/// </summary>
/// <param name="caption"></param>
/// <param name="message"></param>
/// <param name="userName"></param>
/// <param name="targetName"></param>
/// <returns></returns>
public override PSCredential PromptForCredential(string caption, string message, string userName, string targetName)
=> throw new PSNotImplementedException();
/// <summary>
/// PromptForCredential.
/// </summary>
/// <param name="caption"></param>
/// <param name="message"></param>
/// <param name="userName"></param>
/// <param name="targetName"></param>
/// <param name="allowedCredentialTypes"></param>
/// <param name="options"></param>
/// <returns></returns>
public override PSCredential PromptForCredential(string caption, string message, string userName, string targetName, PSCredentialTypes allowedCredentialTypes, PSCredentialUIOptions options)
=> throw new PSNotImplementedException();
/// <summary>
/// ReadLine.
/// </summary>
/// <returns></returns>
public override string ReadLine()
=> throw new PSNotImplementedException();
/// <summary>
/// ReadLineAsSecureString.
/// </summary>
/// <returns></returns>
public override SecureString ReadLineAsSecureString()
=> throw new PSNotImplementedException();
/// <summary>
/// Write.
/// </summary>
/// <param name="value"></param>
public override void Write(string value)
{ }
/// <summary>
/// Write.
/// </summary>
/// <param name="foregroundColor"></param>
/// <param name="backgroundColor"></param>
/// <param name="value"></param>
public override void Write(ConsoleColor foregroundColor, ConsoleColor backgroundColor, string value)
{ }
/// <summary>
/// WriteDebugLine.
/// </summary>
/// <param name="message"></param>
public override void WriteDebugLine(string message)
{ }
/// <summary>
/// WriteErrorLine.
/// </summary>
/// <param name="value"></param>
public override void WriteErrorLine(string value)
=> Console.Out.WriteLine(value);
/// <summary>
/// WriteLine.
/// </summary>
/// <param name="value"></param>
public override void WriteLine(string value)
{ }
/// <summary>
/// WriteProgress.
/// </summary>
/// <param name="sourceId"></param>
/// <param name="record"></param>
public override void WriteProgress(long sourceId, ProgressRecord record)
{ }
/// <summary>
/// WriteVerboseLine.
/// </summary>
/// <param name="message"></param>
public override void WriteVerboseLine(string message)
{ }
/// <summary>
/// WriteWarningLine.
/// </summary>
/// <param name="message"></param>
public override void WriteWarningLine(string message)
{ }
}
internal class CommandLineParameterParser
{
private const int MaxPipePathLengthLinux = 108;
private const int MaxPipePathLengthMacOS = 104;
internal static int MaxNameLength()
{
if (Platform.IsWindows)
{
return ushort.MaxValue;
}
int maxLength = Platform.IsLinux ? MaxPipePathLengthLinux : MaxPipePathLengthMacOS;
return maxLength - Path.GetTempPath().Length;
}
internal bool? InputRedirectedTestHook;
private static readonly string[] s_validParameters = {
"sta",
"mta",
"command",
"commandwithargs",
"configurationname",
"custompipename",
"encodedcommand",
"executionpolicy",
"file",
"help",
"inputformat",
"login",
"noexit",
"nologo",
"noninteractive",
"noprofile",
"noprofileloadtime",
"outputformat",
"removeworkingdirectorytrailingcharacter",
"settingsfile",
"version",
"windowstyle",
"workingdirectory"
};
#pragma warning disable SA1025 // CodeMustNotContainMultipleWhitespaceInARow
/// <summary>
/// These represent the parameters that are used when starting pwsh.
/// We can query in our telemetry to determine how pwsh was invoked.
/// </summary>
[Flags]
internal enum ParameterBitmap : long
{
Command = 0x0000000000000001, // -Command | -c
ConfigurationName = 0x0000000000000002, // -ConfigurationName | -config
CustomPipeName = 0x0000000000000004, // -CustomPipeName
EncodedCommand = 0x0000000000000008, // -EncodedCommand | -e | -ec
EncodedArgument = 0x0000000000000010, // -EncodedArgument
ExecutionPolicy = 0x0000000000000020, // -ExecutionPolicy | -ex | -ep
File = 0x0000000000000040, // -File | -f
Help = 0x0000000000000080, // -Help, -?, /?
InputFormat = 0x0000000000000100, // -InputFormat | -inp | -if
Interactive = 0x0000000000000200, // -Interactive | -i
Login = 0x0000000000000400, // -Login | -l
MTA = 0x0000000000000800, // -MTA
NoExit = 0x0000000000001000, // -NoExit | -noe
NoLogo = 0x0000000000002000, // -NoLogo | -nol
NonInteractive = 0x0000000000004000, // -NonInteractive | -noni
NoProfile = 0x0000000000008000, // -NoProfile | -nop
OutputFormat = 0x0000000000010000, // -OutputFormat | -o | -of
SettingsFile = 0x0000000000020000, // -SettingsFile | -settings
SSHServerMode = 0x0000000000040000, // -SSHServerMode | -sshs
SocketServerMode = 0x0000000000080000, // -SocketServerMode | -sockets
ServerMode = 0x0000000000100000, // -ServerMode | -server
NamedPipeServerMode = 0x0000000000200000, // -NamedPipeServerMode | -namedpipes
STA = 0x0000000000400000, // -STA
Version = 0x0000000000800000, // -Version | -v
WindowStyle = 0x0000000001000000, // -WindowStyle | -w
WorkingDirectory = 0x0000000002000000, // -WorkingDirectory | -wd
ConfigurationFile = 0x0000000004000000, // -ConfigurationFile
NoProfileLoadTime = 0x0000000008000000, // -NoProfileLoadTime
CommandWithArgs = 0x0000000010000000, // -CommandWithArgs | -cwa
// Enum values for specified ExecutionPolicy
EPUnrestricted = 0x0000000100000000, // ExecutionPolicy unrestricted
EPRemoteSigned = 0x0000000200000000, // ExecutionPolicy remote signed
EPAllSigned = 0x0000000400000000, // ExecutionPolicy all signed
EPRestricted = 0x0000000800000000, // ExecutionPolicy restricted
EPDefault = 0x0000001000000000, // ExecutionPolicy default
EPBypass = 0x0000002000000000, // ExecutionPolicy bypass
EPUndefined = 0x0000004000000000, // ExecutionPolicy undefined
EPIncorrect = 0x0000008000000000, // ExecutionPolicy incorrect
// V2 Socket Server Mode
V2SocketServerMode = 0x0000100000000000, // -V2SocketServerMode | -v2so
}
#pragma warning restore SA1025 // CodeMustNotContainMultipleWhitespaceInARow
internal ParameterBitmap ParametersUsed = 0;
internal double ParametersUsedAsDouble
{
get { return (double)ParametersUsed; }
}
[Conditional("DEBUG")]
private void AssertArgumentsParsed()
{
if (!_dirty)
{
throw new InvalidOperationException("Parse has not been called yet");
}
}
internal CommandLineParameterParser()
{
}
#region Internal properties
internal bool AbortStartup
{
get
{
AssertArgumentsParsed();
return _abortStartup;
}
}
internal string? SettingsFile
{
get
{
AssertArgumentsParsed();
return _settingsFile;
}
}
internal string? InitialCommand
{
get
{
AssertArgumentsParsed();
return _commandLineCommand;
}
}
internal bool WasInitialCommandEncoded
{
get
{
AssertArgumentsParsed();
return _wasCommandEncoded;
}
}
#if !UNIX
internal ProcessWindowStyle? WindowStyle
{
get
{
AssertArgumentsParsed();
return _windowStyle;
}
}
#endif
internal bool ShowBanner
{
get
{
AssertArgumentsParsed();
return _showBanner;
}
}
internal bool NoExit
{
get
{
AssertArgumentsParsed();
return _noExit;
}
}
internal bool SkipProfiles
{
get
{
AssertArgumentsParsed();
return _skipUserInit;
}
}
internal uint ExitCode
{
get
{
AssertArgumentsParsed();
return _exitCode;
}
}
internal bool ExplicitReadCommandsFromStdin
{
get
{
AssertArgumentsParsed();
return _explicitReadCommandsFromStdin;
}
}
internal bool NoPrompt
{
get
{
AssertArgumentsParsed();
return _noPrompt;
}
}
internal Collection<CommandParameter> Args
{
get
{
AssertArgumentsParsed();
return _collectedArgs;
}
}
internal string? ConfigurationFile
{
get
{
AssertArgumentsParsed();
return _configurationFile;
}
}
internal string? ConfigurationName
{
get
{
AssertArgumentsParsed();
return _configurationName;
}
set
{
if (!string.IsNullOrEmpty(value))
{
_configurationName = value;
}
}
}
internal bool SocketServerMode
{
get
{
AssertArgumentsParsed();
return _socketServerMode;
}
}
internal bool NamedPipeServerMode
{
get
{
AssertArgumentsParsed();
return _namedPipeServerMode;
}
}
internal bool SSHServerMode
{
get
{
AssertArgumentsParsed();
return _sshServerMode;
}
}
internal bool ServerMode
{
get
{
AssertArgumentsParsed();
return _serverMode;
}
}
// Added for using in xUnit tests
internal string? ErrorMessage
{
get
{
AssertArgumentsParsed();
return _error;
}
}
// Added for using in xUnit tests
internal bool ShowShortHelp
{
get
{
AssertArgumentsParsed();
return _showHelp;
}
}
// Added for using in xUnit tests
internal bool ShowExtendedHelp
{
get
{
AssertArgumentsParsed();
return _showExtendedHelp;
}
}
internal bool NoProfileLoadTime
{
get
{
AssertArgumentsParsed();
return _noProfileLoadTime;
}
}
internal bool ShowVersion
{
get
{
AssertArgumentsParsed();
return _showVersion;
}
}
internal string? CustomPipeName
{
get
{
AssertArgumentsParsed();
return _customPipeName;
}
}
internal Serialization.DataFormat OutputFormat
{
get
{
AssertArgumentsParsed();
return _outFormat;
}
}
internal bool OutputFormatSpecified
{
get
{
AssertArgumentsParsed();
return _outputFormatSpecified;
}
}
internal Serialization.DataFormat InputFormat
{
get
{
AssertArgumentsParsed();
return _inFormat;
}
}
internal string? File
{
get
{
AssertArgumentsParsed();
return _file;
}
}
internal string? ExecutionPolicy
{
get
{
AssertArgumentsParsed();
return _executionPolicy;
}
}
internal bool StaMode
{
get
{
AssertArgumentsParsed();
if (_staMode.HasValue)
{
return _staMode.Value;
}
else
{
return Platform.IsStaSupported;
}
}
}
internal bool ThrowOnReadAndPrompt
{
get
{
AssertArgumentsParsed();
return _noInteractive;
}
}
internal bool NonInteractive
{
get
{
AssertArgumentsParsed();
return _noInteractive;
}
}
internal string? WorkingDirectory
{
get
{
AssertArgumentsParsed();
#if !UNIX
if (_removeWorkingDirectoryTrailingCharacter && _workingDirectory?.Length > 0)
{
return _workingDirectory.Remove(_workingDirectory.Length - 1);
}
#endif
return _workingDirectory;
}
}
#if !UNIX
internal bool RemoveWorkingDirectoryTrailingCharacter
{
get
{
AssertArgumentsParsed();
return _removeWorkingDirectoryTrailingCharacter;
}
}
internal DateTimeOffset? UTCTimestamp
{
get
{
AssertArgumentsParsed();
return _utcTimestamp;
}
}
internal string? Token
{
get
{
AssertArgumentsParsed();
return _token;
}
}
internal bool V2SocketServerMode
{
get
{
AssertArgumentsParsed();
return _v2SocketServerMode;
}
}
#endif
#endregion Internal properties
#region static methods
/// <summary>
/// Processes the -SettingFile Argument.
/// </summary>
/// <param name="args">
/// The command line parameters to be processed.
/// </param>
/// <param name="settingFileArgIndex">
/// The index in args to the argument following '-SettingFile'.
/// </param>
/// <returns>
/// Returns true if the argument was parsed successfully and false if not.
/// </returns>
private bool TryParseSettingFileHelper(string[] args, int settingFileArgIndex)
{
if (settingFileArgIndex >= args.Length)
{
SetCommandLineError(CommandLineParameterParserStrings.MissingSettingsFileArgument);
return false;
}
string configFile;
try
{
configFile = NormalizeFilePath(args[settingFileArgIndex]);
}
catch (Exception ex)
{
string error = string.Format(CultureInfo.CurrentCulture, CommandLineParameterParserStrings.InvalidSettingsFileArgument, args[settingFileArgIndex], ex.Message);
SetCommandLineError(error);
return false;
}
if (!System.IO.File.Exists(configFile))
{
string error = string.Format(CultureInfo.CurrentCulture, CommandLineParameterParserStrings.SettingsFileNotExists, configFile);
SetCommandLineError(error);
return false;
}
_settingsFile = configFile;
return true;
}
internal static string GetConfigurationNameFromGroupPolicy()
{
// Current user policy takes precedence.
var consoleSessionSetting = Utils.GetPolicySetting<ConsoleSessionConfiguration>(Utils.CurrentUserThenSystemWideConfig);
return (consoleSessionSetting?.EnableConsoleSessionConfiguration == true && !string.IsNullOrEmpty(consoleSessionSetting?.ConsoleSessionConfigurationName)) ?
consoleSessionSetting.ConsoleSessionConfigurationName : string.Empty;
}
/// <summary>
/// Gets the word in a switch from the current argument or parses a file.
/// For example -foo, /foo, or --foo would return 'foo'.
/// </summary>
/// <param name="args">
/// The command line parameters to be processed.
/// </param>
/// <param name="argIndex">
/// The index in args to the argument to process.
/// </param>
/// <param name="noexitSeen">
/// Used during parsing files.
/// </param>
/// <returns>
/// Returns a Tuple:
/// The first value is a String called 'switchKey' with the word in a switch from the current argument or null.
/// The second value is a bool called 'shouldBreak', indicating if the parsing look should break.
/// </returns>
private (string switchKey, bool shouldBreak) GetSwitchKey(string[] args, ref int argIndex, ref bool noexitSeen)
{
string switchKey = args[argIndex].Trim();
if (string.IsNullOrEmpty(switchKey))
{
return (switchKey: string.Empty, shouldBreak: false);
}
char firstChar = switchKey[0];
if (!CharExtensions.IsDash(firstChar) && firstChar != '/')
{
// then it's a file
--argIndex;
ParseFile(args, ref argIndex, noexitSeen);
return (switchKey: string.Empty, shouldBreak: true);
}
// chop off the first character so that we're agnostic wrt specifying / or -
// in front of the switch name.
switchKey = switchKey.Substring(1);
// chop off the second dash so we're agnostic wrt specifying - or --
if (!string.IsNullOrEmpty(switchKey) && CharExtensions.IsDash(firstChar) && switchKey[0] == firstChar)
{
switchKey = switchKey.Substring(1);
}
return (switchKey: switchKey, shouldBreak: false);
}
internal static string NormalizeFilePath(string path)
{
// Normalize slashes
path = path.Replace(
StringLiterals.AlternatePathSeparator,
StringLiterals.DefaultPathSeparator);
return Path.GetFullPath(path);
}
/// <summary>
/// Determine the execution policy based on the supplied string.
/// If the string doesn't match to any known execution policy, set it to incorrect.
/// </summary>
/// <param name="_executionPolicy">The value provided on the command line.</param>
/// <returns>The execution policy.</returns>
private static ParameterBitmap GetExecutionPolicy(string? _executionPolicy)
{
if (_executionPolicy is null)
{
return ParameterBitmap.EPUndefined;
}
ParameterBitmap executionPolicySetting = ParameterBitmap.EPIncorrect;
if (string.Equals(_executionPolicy, "default", StringComparison.OrdinalIgnoreCase))
{
executionPolicySetting = ParameterBitmap.EPDefault;
}
else if (string.Equals(_executionPolicy, "remotesigned", StringComparison.OrdinalIgnoreCase))
{
executionPolicySetting = ParameterBitmap.EPRemoteSigned;
}
else if (string.Equals(_executionPolicy, "bypass", StringComparison.OrdinalIgnoreCase))
{
executionPolicySetting = ParameterBitmap.EPBypass;
}
else if (string.Equals(_executionPolicy, "allsigned", StringComparison.OrdinalIgnoreCase))
{
executionPolicySetting = ParameterBitmap.EPAllSigned;
}
else if (string.Equals(_executionPolicy, "restricted", StringComparison.OrdinalIgnoreCase))
{
executionPolicySetting = ParameterBitmap.EPRestricted;
}
else if (string.Equals(_executionPolicy, "unrestricted", StringComparison.OrdinalIgnoreCase))
{
executionPolicySetting = ParameterBitmap.EPUnrestricted;
}
else if (string.Equals(_executionPolicy, "undefined", StringComparison.OrdinalIgnoreCase))
{
executionPolicySetting = ParameterBitmap.EPUndefined;
}
return executionPolicySetting;
}
private static bool MatchSwitch(string switchKey, string match, string smallestUnambiguousMatch)
{
Dbg.Assert(!string.IsNullOrEmpty(match), "need a value");
Dbg.Assert(match.Trim().ToLowerInvariant() == match, "match should be normalized to lowercase w/ no outside whitespace");
Dbg.Assert(smallestUnambiguousMatch.Trim().ToLowerInvariant() == smallestUnambiguousMatch, "match should be normalized to lowercase w/ no outside whitespace");
Dbg.Assert(match.Contains(smallestUnambiguousMatch), "sUM should be a substring of match");
return (switchKey.Length >= smallestUnambiguousMatch.Length
&& match.StartsWith(switchKey, StringComparison.OrdinalIgnoreCase));
}
#endregion
private void ShowError(PSHostUserInterface hostUI)
{
if (_error != null)
{
hostUI.WriteErrorLine(_error);
}
}
private void ShowHelp(PSHostUserInterface hostUI, string? helpText)
{
if (helpText is null)
{
return;
}
if (_showHelp)
{
hostUI.WriteLine();
hostUI.Write(helpText);
if (_showExtendedHelp)
{
hostUI.Write(ManagedEntranceStrings.ExtendedHelp);
}
hostUI.WriteLine();
}
}
private void DisplayBanner(PSHostUserInterface hostUI, string? bannerText)
{
if (_showBanner && !_showHelp)
{
// If banner text is not supplied do nothing.
if (!string.IsNullOrEmpty(bannerText))
{
hostUI.WriteLine(bannerText);
}
if (UpdatesNotification.CanNotifyUpdates)
{
UpdatesNotification.ShowUpdateNotification(hostUI);
}
}
}
/// <summary>
/// Processes all the command line parameters to ConsoleHost. Returns the exit code to be used to terminate the process, or
/// Success to indicate that the program should continue running.
/// </summary>
/// <param name="args">
/// The command line parameters to be processed.
/// </param>
internal void Parse(string[] args)
{
if (_dirty)
{
throw new InvalidOperationException("This instance has already been used. Create a new instance.");
}
for (int i = 0; i < args.Length; i++)
{
ArgumentNullException.ThrowIfNull(args[i], CommandLineParameterParserStrings.NullElementInArgs);
}
// Indicates that we've called this method on this instance, and that when it's done, the state variables
// will reflect the parse.
_dirty = true;
ParseHelper(args);
}
private void ParseHelper(string[] args)
{
if (args.Length == 0)
{
return;
}
bool noexitSeen = false;
for (int i = 0; i < args.Length; ++i)
{
(string switchKey, bool shouldBreak) switchKeyResults = GetSwitchKey(args, ref i, ref noexitSeen);
if (switchKeyResults.shouldBreak)
{
break;
}
string switchKey = switchKeyResults.switchKey;
// If version is in the commandline, don't continue to look at any other parameters
if (MatchSwitch(switchKey, "version", "v"))
{
_showVersion = true;
_showBanner = false;
_noInteractive = true;
_skipUserInit = true;
_noExit = false;
ParametersUsed |= ParameterBitmap.Version;
break;
}
if (MatchSwitch(switchKey, "help", "h") || MatchSwitch(switchKey, "?", "?"))
{
_showHelp = true;
_showExtendedHelp = true;
_abortStartup = true;
ParametersUsed |= ParameterBitmap.Help;
}
else if (MatchSwitch(switchKey, "login", "l"))
{
// On Windows, '-Login' does nothing.
// On *nix, '-Login' is already handled much earlier to improve startup performance, so we do nothing here.
ParametersUsed |= ParameterBitmap.Login;
}
else if (MatchSwitch(switchKey, "noexit", "noe"))
{
_noExit = true;
noexitSeen = true;
ParametersUsed |= ParameterBitmap.NoExit;
}
else if (MatchSwitch(switchKey, "noprofile", "nop"))
{
_skipUserInit = true;
ParametersUsed |= ParameterBitmap.NoProfile;
}
else if (MatchSwitch(switchKey, "nologo", "nol"))
{
_showBanner = false;
ParametersUsed |= ParameterBitmap.NoLogo;
}
else if (MatchSwitch(switchKey, "noninteractive", "noni"))
{
_noInteractive = true;
ParametersUsed |= ParameterBitmap.NonInteractive;
}
else if (MatchSwitch(switchKey, "socketservermode", "so"))
{
_socketServerMode = true;
_showBanner = false;
ParametersUsed |= ParameterBitmap.SocketServerMode;
}
#if !UNIX
else if (MatchSwitch(switchKey, "v2socketservermode", "v2so"))
{
_v2SocketServerMode = true;
_showBanner = false;
ParametersUsed |= ParameterBitmap.V2SocketServerMode;
}
#endif
else if (MatchSwitch(switchKey, "servermode", "s"))
{
_serverMode = true;
_showBanner = false;
ParametersUsed |= ParameterBitmap.ServerMode;
}
else if (MatchSwitch(switchKey, "namedpipeservermode", "nam"))
{
_namedPipeServerMode = true;
_showBanner = false;
ParametersUsed |= ParameterBitmap.NamedPipeServerMode;
}
else if (MatchSwitch(switchKey, "sshservermode", "sshs"))
{
_sshServerMode = true;
_showBanner = false;
ParametersUsed |= ParameterBitmap.SSHServerMode;
}
else if (MatchSwitch(switchKey, "noprofileloadtime", "noprofileloadtime"))
{
_noProfileLoadTime = true;
ParametersUsed |= ParameterBitmap.NoProfileLoadTime;
}
else if (MatchSwitch(switchKey, "interactive", "i"))
{
_noInteractive = false;
ParametersUsed |= ParameterBitmap.Interactive;
}
else if (MatchSwitch(switchKey, "configurationfile", "configurationfile"))
{
++i;
if (i >= args.Length)
{
SetCommandLineError(
CommandLineParameterParserStrings.MissingConfigurationFileArgument);
break;
}
_configurationFile = args[i];
ParametersUsed |= ParameterBitmap.ConfigurationFile;
}
else if (MatchSwitch(switchKey, "configurationname", "config"))
{
++i;
if (i >= args.Length)
{
SetCommandLineError(
CommandLineParameterParserStrings.MissingConfigurationNameArgument);
break;
}
_configurationName = args[i];
ParametersUsed |= ParameterBitmap.ConfigurationName;
}
else if (MatchSwitch(switchKey, "custompipename", "cus"))
{
++i;
if (i >= args.Length)
{
SetCommandLineError(
CommandLineParameterParserStrings.MissingCustomPipeNameArgument);
break;
}
#if UNIX
int maxNameLength = MaxNameLength();
if (args[i].Length > maxNameLength)
{
SetCommandLineError(
string.Format(
CommandLineParameterParserStrings.CustomPipeNameTooLong,
maxNameLength,
args[i],
args[i].Length));
break;
}
#endif
_customPipeName = args[i];
ParametersUsed |= ParameterBitmap.CustomPipeName;
}
else if (MatchSwitch(switchKey, "commandwithargs", "commandwithargs") || MatchSwitch(switchKey, "cwa", "cwa"))
{
_commandHasArgs = true;
if (!ParseCommand(args, ref i, noexitSeen, false))
{
break;
}
i++;
CollectPSArgs(args, ref i);
ParametersUsed |= ParameterBitmap.CommandWithArgs;
}
else if (MatchSwitch(switchKey, "command", "c"))
{
if (!ParseCommand(args, ref i, noexitSeen, false))
{
break;
}
ParametersUsed |= ParameterBitmap.Command;
}
else if (MatchSwitch(switchKey, "windowstyle", "w"))
{
#if UNIX
SetCommandLineError(
CommandLineParameterParserStrings.WindowStyleArgumentNotImplemented);
break;
#else
++i;
if (i >= args.Length)
{
SetCommandLineError(
CommandLineParameterParserStrings.MissingWindowStyleArgument);
break;
}
try
{
_windowStyle = LanguagePrimitives.ConvertTo<ProcessWindowStyle>(args[i]);
}
catch (PSInvalidCastException e)
{
SetCommandLineError(
string.Format(CultureInfo.CurrentCulture, CommandLineParameterParserStrings.InvalidWindowStyleArgument, args[i], e.Message));
break;
}
ParametersUsed |= ParameterBitmap.WindowStyle;
#endif
}
else if (MatchSwitch(switchKey, "file", "f"))
{
if (!ParseFile(args, ref i, noexitSeen))
{
break;
}
ParametersUsed |= ParameterBitmap.File;
}
#if DEBUG
else if (MatchSwitch(switchKey, "isswait", "isswait"))
{
// Just toss this option, it was processed earlier in 'ManagedEntrance.Start()'.
}
#endif
else if (MatchSwitch(switchKey, "outputformat", "o") || MatchSwitch(switchKey, "of", "o"))
{
ParseFormat(args, ref i, ref _outFormat, CommandLineParameterParserStrings.MissingOutputFormatParameter);
_outputFormatSpecified = true;
ParametersUsed |= ParameterBitmap.OutputFormat;
}
else if (MatchSwitch(switchKey, "inputformat", "inp") || MatchSwitch(switchKey, "if", "if"))
{
ParseFormat(args, ref i, ref _inFormat, CommandLineParameterParserStrings.MissingInputFormatParameter);
ParametersUsed |= ParameterBitmap.InputFormat;
}
else if (MatchSwitch(switchKey, "executionpolicy", "ex") || MatchSwitch(switchKey, "ep", "ep"))
{
ParseExecutionPolicy(args, ref i, ref _executionPolicy, CommandLineParameterParserStrings.MissingExecutionPolicyParameter);
ParametersUsed |= ParameterBitmap.ExecutionPolicy;
var executionPolicy = GetExecutionPolicy(_executionPolicy);
if (executionPolicy == ParameterBitmap.EPIncorrect)
{
SetCommandLineError(
string.Format(CultureInfo.CurrentCulture, CommandLineParameterParserStrings.InvalidExecutionPolicyArgument, _executionPolicy),
showHelp: true);
break;
}
ParametersUsed |= executionPolicy;
}
else if (MatchSwitch(switchKey, "encodedcommand", "e") || MatchSwitch(switchKey, "ec", "e"))
{
_wasCommandEncoded = true;
if (!ParseCommand(args, ref i, noexitSeen, true))
{
break;
}
ParametersUsed |= ParameterBitmap.EncodedCommand;
}
else if (MatchSwitch(switchKey, "encodedarguments", "encodeda") || MatchSwitch(switchKey, "ea", "ea"))
{
if (!CollectArgs(args, ref i))
{
break;
}
ParametersUsed |= ParameterBitmap.EncodedArgument;
}
else if (MatchSwitch(switchKey, "settingsfile", "settings"))
{
// Parse setting file arg and write error
if (!TryParseSettingFileHelper(args, ++i))
{
break;
}
ParametersUsed |= ParameterBitmap.SettingsFile;
}
else if (MatchSwitch(switchKey, "sta", "sta"))
{
if (!Platform.IsWindowsDesktop || !Platform.IsStaSupported)
{
SetCommandLineError(
CommandLineParameterParserStrings.STANotImplemented);
break;
}
if (_staMode.HasValue)
{
// -sta and -mta are mutually exclusive.
SetCommandLineError(
CommandLineParameterParserStrings.MtaStaMutuallyExclusive);
break;
}
_staMode = true;
ParametersUsed |= ParameterBitmap.STA;
}
else if (MatchSwitch(switchKey, "mta", "mta"))
{
if (!Platform.IsWindowsDesktop)
{
SetCommandLineError(
CommandLineParameterParserStrings.MTANotImplemented);
break;
}
if (_staMode.HasValue)
{
// -sta and -mta are mutually exclusive.
SetCommandLineError(
CommandLineParameterParserStrings.MtaStaMutuallyExclusive);
break;
}
_staMode = false;
ParametersUsed |= ParameterBitmap.MTA;
}
else if (MatchSwitch(switchKey, "workingdirectory", "wo") || MatchSwitch(switchKey, "wd", "wd"))
{
++i;
if (i >= args.Length)
{
SetCommandLineError(
CommandLineParameterParserStrings.MissingWorkingDirectoryArgument);
break;
}
_workingDirectory = args[i];
ParametersUsed |= ParameterBitmap.WorkingDirectory;
}
#if !UNIX
else if (MatchSwitch(switchKey, "removeworkingdirectorytrailingcharacter", "removeworkingdirectorytrailingcharacter"))
{
_removeWorkingDirectoryTrailingCharacter = true;
}
else if (MatchSwitch(switchKey, "token", "to"))
{
++i;
if (i >= args.Length)
{
SetCommandLineError(
string.Format(CultureInfo.CurrentCulture, CommandLineParameterParserStrings.MissingMandatoryArgument, "-Token"));
break;
}
_token = args[i];
// Not adding anything to ParametersUsed, because it is required with V2 socket server mode
// So, we can assume it based on that bit
}
else if (MatchSwitch(switchKey, "utctimestamp", "utc"))
{
++i;
if (i >= args.Length)
{
SetCommandLineError(
string.Format(CultureInfo.CurrentCulture, CommandLineParameterParserStrings.MissingMandatoryArgument, "-UTCTimestamp"));
break;
}
// Parse as iso8601UtcString
_utcTimestamp = DateTimeOffset.ParseExact(args[i], "yyyy-MM-dd'T'HH:mm:ssK", CultureInfo.InvariantCulture, DateTimeStyles.RoundtripKind);
// Not adding anything to ParametersUsed, because it is required with V2 socket server mode
// So, we can assume it based on that bit
}
#endif
else
{
// The first parameter we fail to recognize marks the beginning of the file string.
--i;
if (!ParseFile(args, ref i, noexitSeen))
{
break;
}
// default to filename being the next argument.
ParametersUsed |= ParameterBitmap.File;
}
}
Dbg.Assert(
((_exitCode == ConsoleHost.ExitCodeBadCommandLineParameter) && _abortStartup)
|| (_exitCode == ConsoleHost.ExitCodeSuccess),
"if exit code is failure, then abortstartup should be true");
}
internal void ShowErrorHelpBanner(PSHostUserInterface hostUI, string? bannerText, string? helpText)
{
ShowError(hostUI);
ShowHelp(hostUI, helpText);
DisplayBanner(hostUI, bannerText);
}
private void SetCommandLineError(string msg, bool showHelp = false, bool showBanner = false)
{
if (_error != null)
{
throw new ArgumentException(nameof(SetCommandLineError), nameof(_error));
}
_error = msg;
_showHelp = showHelp;
_showBanner = showBanner;
_abortStartup = true;
_exitCode = ConsoleHost.ExitCodeBadCommandLineParameter;
}
private void ParseFormat(string[] args, ref int i, ref Serialization.DataFormat format, string resourceStr)
{
StringBuilder sb = new StringBuilder();
foreach (string s in Enum.GetNames<Serialization.DataFormat>())
{
sb.Append(s);
sb.Append(Environment.NewLine);
}
++i;
if (i >= args.Length)
{
SetCommandLineError(
StringUtil.Format(
resourceStr,
sb.ToString()),
showHelp: true);
return;
}
try
{
format = (Serialization.DataFormat)Enum.Parse(typeof(Serialization.DataFormat), args[i], true);
}
catch (ArgumentException)
{
SetCommandLineError(
StringUtil.Format(
CommandLineParameterParserStrings.BadFormatParameterValue,
args[i],
sb.ToString()),
showHelp: true);
}
}
private void ParseExecutionPolicy(string[] args, ref int i, ref string? executionPolicy, string resourceStr)
{
++i;
if (i >= args.Length)
{
SetCommandLineError(resourceStr, showHelp: true);
return;
}
executionPolicy = args[i];
}
// Process file execution. We don't need to worry about checking -command
// since if -command comes before -file, -file will be treated as part
// of the script to evaluate. If -file comes before -command, it will
// treat -command as an argument to the script...
private bool ParseFile(string[] args, ref int i, bool noexitSeen)
{
++i;
if (i >= args.Length)
{
SetCommandLineError(
CommandLineParameterParserStrings.MissingFileArgument,
showHelp: true,
showBanner: false);
return false;
}
// Don't show the startup banner unless -noexit has been specified.
if (!noexitSeen)
_showBanner = false;
// Process interactive input...
if (args[i] == "-")
{
// the arg to -file is -, which is secret code for "read the commands from stdin with prompts"
_explicitReadCommandsFromStdin = true;
_noPrompt = false;
}
else
{
// Exit on script completion unless -noexit was specified...
if (!noexitSeen)
_noExit = false;
// We need to get the full path to the script because it will be
// executed after the profiles are run and they may change the current
// directory.
try
{
_file = NormalizeFilePath(args[i]);
}
catch (Exception e)
{
// Catch all exceptions - we're just going to exit anyway so there's
// no issue of the system being destabilized.
SetCommandLineError(
string.Format(CultureInfo.CurrentCulture, CommandLineParameterParserStrings.InvalidFileArgument, args[i], e.Message),
showBanner: false);
return false;
}
if (!System.IO.File.Exists(_file))
{
if (args[i].StartsWith('-') && args[i].Length > 1)
{
string param = args[i].Substring(1, args[i].Length - 1);
StringBuilder possibleParameters = new StringBuilder();
foreach (string validParameter in s_validParameters)
{
if (validParameter.Contains(param, StringComparison.OrdinalIgnoreCase))
{
possibleParameters.Append("\n -");
possibleParameters.Append(validParameter);
}
}
if (possibleParameters.Length > 0)
{
SetCommandLineError(
string.Format(CultureInfo.CurrentCulture, CommandLineParameterParserStrings.InvalidArgument, args[i])
+ Environment.NewLine
+ possibleParameters.ToString(),
showBanner: false);
return false;
}
}
SetCommandLineError(
string.Format(CultureInfo.CurrentCulture, CommandLineParameterParserStrings.ArgumentFileDoesNotExist, args[i]),
showHelp: true);
return false;
}
#if !UNIX
// Only do the .ps1 extension check on Windows since shebang is not supported
if (!_file.EndsWith(".ps1", StringComparison.OrdinalIgnoreCase))
{
SetCommandLineError(string.Format(CultureInfo.CurrentCulture, CommandLineParameterParserStrings.InvalidFileArgumentExtension, args[i]));
return false;
}
#endif
i++;
CollectPSArgs(args, ref i);
}
return true;
}
private void CollectPSArgs(string[] args, ref int i)
{
// Try parse '$true', 'true', '$false' and 'false' values.
static object ConvertToBoolIfPossible(string arg)
{
// Before parsing we skip '$' if present.
return arg.Length > 0 && bool.TryParse(arg.AsSpan(arg[0] == '$' ? 1 : 0), out bool boolValue)
? (object)boolValue
: (object)arg;
}
string? pendingParameter = null;
while (i < args.Length)
{
string arg = args[i];
// If there was a pending parameter, add a named parameter
// using the pending parameter and current argument
if (pendingParameter != null)
{
_collectedArgs.Add(new CommandParameter(pendingParameter, arg));
pendingParameter = null;
}
else if (!string.IsNullOrEmpty(arg) && CharExtensions.IsDash(arg[0]) && arg.Length > 1)
{
int offset = arg.IndexOf(':');
if (offset >= 0)
{
if (offset == arg.Length - 1)
{
pendingParameter = arg.TrimEnd(':');
}
else
{
string argValue = arg.Substring(offset + 1);
string argName = arg.Substring(0, offset);
_collectedArgs.Add(new CommandParameter(argName, ConvertToBoolIfPossible(argValue)));
}
}
else
{
_collectedArgs.Add(new CommandParameter(arg));
}
}
else
{
_collectedArgs.Add(new CommandParameter(null, arg));
}
++i;
}
}
private bool ParseCommand(string[] args, ref int i, bool noexitSeen, bool isEncoded)
{
if (_commandLineCommand != null)
{
// we've already set the command, so squawk
SetCommandLineError(CommandLineParameterParserStrings.CommandAlreadySpecified, showHelp: true);
return false;
}
++i;
if (i >= args.Length)
{
SetCommandLineError(CommandLineParameterParserStrings.MissingCommandParameter, showHelp: true);
return false;
}
if (isEncoded)
{
try
{
_commandLineCommand = StringToBase64Converter.Base64ToString(args[i]);
}
// decoding failed
catch
{
SetCommandLineError(CommandLineParameterParserStrings.BadCommandValue, showHelp: true);
return false;
}
}
else if (args[i] == "-")
{
// the arg to -command is -, which is secret code for "read the commands from stdin with no prompts"
_explicitReadCommandsFromStdin = true;
_noPrompt = true;
++i;
if (i != args.Length)
{
// there are more parameters to -command than -, which is an error.
SetCommandLineError(CommandLineParameterParserStrings.TooManyParametersToCommand, showHelp: true);
return false;
}
if (InputRedirectedTestHook.HasValue ? !InputRedirectedTestHook.Value : !Console.IsInputRedirected)
{
SetCommandLineError(CommandLineParameterParserStrings.StdinNotRedirected, showHelp: true);
return false;
}
}
else
{
if (_commandHasArgs)
{
_commandLineCommand = args[i];
}
else
{
_commandLineCommand = string.Join(' ', args, i, args.Length - i);
i = args.Length;
}
}
if (!noexitSeen && !_explicitReadCommandsFromStdin)
{
// don't reset this if they've already specified -noexit
_noExit = false;
}
_showBanner = false;
return true;
}
private bool CollectArgs(string[] args, ref int i)
{
if (_collectedArgs.Count != 0)
{
SetCommandLineError(CommandLineParameterParserStrings.ArgsAlreadySpecified, showHelp: true);
return false;
}
++i;
if (i >= args.Length)
{
SetCommandLineError(CommandLineParameterParserStrings.MissingArgsValue, showHelp: true);
return false;
}
try
{
object[] a = StringToBase64Converter.Base64ToArgsConverter(args[i]);
if (a != null)
{
foreach (object obj in a)
{
_collectedArgs.Add(new CommandParameter(null, obj));
}
}
}
catch
{
// decoding failed
SetCommandLineError(CommandLineParameterParserStrings.BadArgsValue, showHelp: true);
return false;
}
return true;
}
private bool _socketServerMode;
#if !UNIX
private bool _v2SocketServerMode;
#endif
private bool _serverMode;
private bool _namedPipeServerMode;
private bool _sshServerMode;
private bool _noProfileLoadTime;
private bool _showVersion;
private string? _configurationFile;
private string? _configurationName;
private string? _error;
private bool _showHelp;
private bool _showExtendedHelp;
private bool _showBanner = true;
private bool _noInteractive;
private bool _abortStartup;
private bool _skipUserInit;
private string? _customPipeName;
private bool? _staMode = null;
private bool _noExit = true;
private bool _explicitReadCommandsFromStdin;
private bool _noPrompt;
private string? _commandLineCommand;
private bool _wasCommandEncoded;
private bool _commandHasArgs;
private uint _exitCode = ConsoleHost.ExitCodeSuccess;
private bool _dirty;
private Serialization.DataFormat _outFormat = Serialization.DataFormat.Text;
private bool _outputFormatSpecified = false;
private Serialization.DataFormat _inFormat = Serialization.DataFormat.Text;
private readonly Collection<CommandParameter> _collectedArgs = new Collection<CommandParameter>();
private string? _file;
private string? _executionPolicy;
private string? _settingsFile;
private string? _workingDirectory;
#if !UNIX
private string? _token;
private DateTimeOffset? _utcTimestamp;
#endif
#if !UNIX
private ProcessWindowStyle? _windowStyle;
private bool _removeWorkingDirectoryTrailingCharacter = false;
#endif
}
} // namespace
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