private void HandleSeenParameter(ref MinishellParameters seen, MinishellParameters parameter, string parameterName)
{
if ((seen & parameter) == parameter)
{
throw this.NewParameterBindingException(null, ErrorCategory.InvalidArgument, parameterName, null, null, "ParameterSpecifiedAlready", new object[] { parameterName });
}
seen |= parameter;
}
/// <summary>
/// Handles error handling if some parameter is specified more than once.
/// </summary>
private void HandleSeenParameter(ref MinishellParameters seen, MinishellParameters parameter, string parameterName)
{
if ((seen & parameter) == parameter)
{
throw NewParameterBindingException(null, ErrorCategory.InvalidArgument,
"-" + parameterName, null, null,
NativeCP.ParameterSpecifiedAlready,
"ParameterSpecifiedAlready",
parameterName);
}
else
{
seen |= parameter;
}
}
/// <summary>
/// Binds the specified parameters to the native command.
/// </summary>
/// <param name="parameters">
/// The parameters to bind.
/// </param>
/// <param name="outputRedirected">
/// true if minishell output is redirected.
/// </param>
/// <param name="hostName">
/// name of the calling host.
/// </param>
/// <remarks>
/// For any parameters that do not have a name, they are added to the command
/// line arguments for the command
/// </remarks>
internal Collection<CommandParameterInternal> BindParameters(Collection<CommandParameterInternal> parameters, bool outputRedirected, string hostName)
{
MinishellParameters seen = 0;
string inputFormat = null;
string outputFormat = null;
for (int i = 0; i < parameters.Count; i++)
{
var parameter = parameters[i];
if (parameter.ParameterNameSpecified)
{
var parameterName = parameter.ParameterName;
if (CommandParameter.StartsWith(parameterName, StringComparison.OrdinalIgnoreCase))
{
HandleSeenParameter(ref seen, MinishellParameters.Command, CommandParameter);
// Value must be specified for -Command parameter.
if (i + 1 >= parameters.Count)
{
throw NewParameterBindingException(null, ErrorCategory.InvalidArgument, CommandParameter,
typeof(ScriptBlock), null,
NativeCP.NoValueForCommandParameter,
"NoValueForCommandParameter");
}
i += 1;
// Value of -Command parameter must be scriptblock
var scriptBlockArgument = parameters[i];
var argumentValue = PSObject.Base(scriptBlockArgument.ArgumentValue);
if (!scriptBlockArgument.ArgumentSpecified || argumentValue is not ScriptBlock)
{
throw NewParameterBindingException(null, ErrorCategory.InvalidArgument, CommandParameter,
typeof(ScriptBlock), argumentValue.GetType(),
NativeCP.IncorrectValueForCommandParameter,
"IncorrectValueForCommandParameter");
}
// Replace the parameters with -EncodedCommand <base64 encoded scriptblock>
parameters[i - 1] = CommandParameterInternal.CreateParameter(EncodedCommandParameter, "-" + EncodedCommandParameter, parameter.ParameterAst);
string encodedScript = StringToBase64Converter.StringToBase64String(argumentValue.ToString());
parameters[i] = CommandParameterInternal.CreateArgument(encodedScript, scriptBlockArgument.ArgumentAst);
}
else if (InputFormatParameter.StartsWith(parameterName, StringComparison.OrdinalIgnoreCase))
{
HandleSeenParameter(ref seen, MinishellParameters.InputFormat, InputFormatParameter);
// Value for -Inputformat must be specified
if (i + 1 >= parameters.Count)
{
throw NewParameterBindingException(null, ErrorCategory.InvalidArgument, InputFormatParameter,
typeof(string), null,
NativeCP.NoValueForInputFormatParameter,
"NoValueForInputFormatParameter");
}
// Update the argument (partial arguments are allowed)
i += 1;
var inputFormatArg = parameters[i];
inputFormat = ProcessFormatParameterValue(InputFormatParameter, inputFormatArg.ArgumentValue);
parameters[i - 1] = CommandParameterInternal.CreateParameter(InputFormatParameter, "-" + InputFormatParameter, parameter.ParameterAst);
parameters[i] = CommandParameterInternal.CreateArgument(inputFormat, inputFormatArg.ArgumentAst);
}
else if (OutputFormatParameter.StartsWith(parameterName, StringComparison.OrdinalIgnoreCase))
{
HandleSeenParameter(ref seen, MinishellParameters.OutputFormat, OutputFormatParameter);
// Value for -Inputformat must be specified
if (i + 1 >= parameters.Count)
{
throw NewParameterBindingException(null, ErrorCategory.InvalidArgument, OutputFormatParameter,
typeof(string), null,
NativeCP.NoValueForOutputFormatParameter,
"NoValueForInputFormatParameter");
}
// Update the argument (partial arguments are allowed)
i += 1;
var outputFormatArg = parameters[i];
outputFormat = ProcessFormatParameterValue(OutputFormatParameter, outputFormatArg.ArgumentValue);
parameters[i - 1] = CommandParameterInternal.CreateParameter(OutputFormatParameter, "-" + OutputFormatParameter, parameter.ParameterAst);
parameters[i] = CommandParameterInternal.CreateArgument(outputFormat, outputFormatArg.ArgumentAst);
}
else if (ArgsParameter.StartsWith(parameterName, StringComparison.OrdinalIgnoreCase))
{
HandleSeenParameter(ref seen, MinishellParameters.Arguments, ArgsParameter);
// Value for -Args parameter must be specified
if (i + 1 >= parameters.Count)
{
throw NewParameterBindingException(null, ErrorCategory.InvalidArgument, ArgsParameter,
typeof(string), null, NativeCP.NoValuesSpecifiedForArgs,
"NoValuesSpecifiedForArgs");
}
// Get the encoded value for -args parameter
i += 1;
var argsArg = parameters[i];
var encodedArgs = ConvertArgsValueToEncodedString(argsArg.ArgumentValue);
parameters[i - 1] = CommandParameterInternal.CreateParameter(EncodedArgsParameter, "-" + EncodedArgsParameter, parameter.ParameterAst);
// NOTE: do not pass the ArgumentAst; it will fail validation in BindParameters if there
// are multiple arguments (array) but encodedArgs is an encoded string.
parameters[i] = CommandParameterInternal.CreateArgument(encodedArgs);
}
}
else
{
// -Command is positional parameter. Bind first scriptblock to it, others are errors.
var scriptBlockArgument = parameters[i];
var argumentValue = PSObject.Base(scriptBlockArgument.ArgumentValue);
if (argumentValue is ScriptBlock)
{
HandleSeenParameter(ref seen, MinishellParameters.Command, CommandParameter);
// Replace the argument with -EncodedCommand <base64 encoded scriptblock>
string encodedScript = StringToBase64Converter.StringToBase64String(argumentValue.ToString());
parameters[i] = CommandParameterInternal.CreateParameterWithArgument(
parameter.ArgumentAst, EncodedCommandParameter, "-" + EncodedCommandParameter,
parameter.ArgumentAst, encodedScript,
spaceAfterParameter: true);
}
}
}
// Add InputFormat and OutputFormat parameter if not specified
if (inputFormat == null)
{
// For minishell default input format is xml
parameters.Add(CommandParameterInternal.CreateParameter(InputFormatParameter, "-" + InputFormatParameter));
parameters.Add(CommandParameterInternal.CreateArgument(XmlFormatValue));
inputFormat = XmlFormatValue;
}
if (outputFormat == null)
{
// If output is redirected, output format should be xml
outputFormat = outputRedirected ? XmlFormatValue : TextFormatValue;
parameters.Add(CommandParameterInternal.CreateParameter(OutputFormatParameter, "-" + OutputFormatParameter));
parameters.Add(CommandParameterInternal.CreateArgument(outputFormat));
}
// Set the output and input format class variable
InputFormat = XmlFormatValue.StartsWith(inputFormat, StringComparison.OrdinalIgnoreCase)
? NativeCommandIOFormat.Xml
: NativeCommandIOFormat.Text;
OutputFormat = XmlFormatValue.StartsWith(outputFormat, StringComparison.OrdinalIgnoreCase)
? NativeCommandIOFormat.Xml
: NativeCommandIOFormat.Text;
// Note if a minishell is invoked from a non-console host, we need to
// pass -nonInteractive flag. Our console host's name is "ConsoleHost".
// Correct check would be see if current host has access to console and
// pass noninteractive flag if doesn't.
if (string.IsNullOrEmpty(hostName) || !hostName.Equals("ConsoleHost", StringComparison.OrdinalIgnoreCase))
{
NonInteractive = true;
parameters.Insert(0, CommandParameterInternal.CreateParameter(NonInteractiveParameter, "-" + NonInteractiveParameter));
}
((NativeCommandParameterBinder)DefaultParameterBinder).BindParameters(parameters);
Diagnostics.Assert(s_emptyReturnCollection.Count == 0, "This list shouldn't be used for anything as it's shared.");
return s_emptyReturnCollection;
}
/// <summary>
/// Handles error handling if some parameter is specified more than once.
/// </summary>
private void HandleSeenParameter(ref MinishellParameters seen, MinishellParameters parameter, string parameterName)
{
if ((seen & parameter) == parameter)
{
throw NewParameterBindingException(null, ErrorCategory.InvalidArgument,
"-" + parameterName, null, null,
NativeCP.ParameterSpecifiedAlready,
"ParameterSpecifiedAlready",
parameterName);
}
else
{
seen = seen | parameter;
}
}
private ArrayList ProcessMinishellParameters(ArrayList args, bool outputRedirected, string hostName)
{
ArrayList list = new ArrayList();
string str = null;
string str2 = null;
MinishellParameters seen = 0;
for (int i = 0; i < args.Count; i++)
{
object obj2 = args[i];
if (StartsWith("-command", obj2))
{
this.HandleSeenParameter(ref seen, MinishellParameters.Command, "-command");
list.Add("-encodedCommand");
if ((i + 1) >= args.Count)
{
throw this.NewParameterBindingException(null, ErrorCategory.InvalidArgument, "-command", typeof(ScriptBlock), null, "NoValueForCommandParameter", new object[0]);
}
ScriptBlock block = args[i + 1] as ScriptBlock;
if (block == null)
{
throw this.NewParameterBindingException(null, ErrorCategory.InvalidArgument, "-command", typeof(ScriptBlock), args[i + 1].GetType(), "IncorrectValueForCommandParameter", new object[0]);
}
string str3 = StringToBase64Converter.StringToBase64String(block.ToString());
list.Add(str3);
i++;
}
else if (obj2 is ScriptBlock)
{
this.HandleSeenParameter(ref seen, MinishellParameters.Command, "-command");
list.Add("-encodedCommand");
string str4 = StringToBase64Converter.StringToBase64String(obj2.ToString());
list.Add(str4);
}
else if (StartsWith("-inputFormat", obj2))
{
this.HandleSeenParameter(ref seen, MinishellParameters.InputFormat, "-inputFormat");
list.Add("-inputFormat");
if ((i + 1) >= args.Count)
{
throw this.NewParameterBindingException(null, ErrorCategory.InvalidArgument, "-inputFormat", typeof(string), null, "NoValueForInputFormatParameter", new object[0]);
}
str = this.ProcessFormatParameterValue("-inputFormat", args[i + 1]);
i++;
list.Add(str);
}
else if (StartsWith("-outputFormat", obj2))
{
this.HandleSeenParameter(ref seen, MinishellParameters.OutputFormat, "-outputFormat");
list.Add("-outputFormat");
if ((i + 1) >= args.Count)
{
throw this.NewParameterBindingException(null, ErrorCategory.InvalidArgument, "-outputFormat", typeof(string), null, "NoValueForOutputFormatParameter", new object[0]);
}
str2 = this.ProcessFormatParameterValue("-outputFormat", args[i + 1]);
i++;
list.Add(str2);
}
else if (StartsWith("-args", obj2))
{
this.HandleSeenParameter(ref seen, MinishellParameters.Arguments, "-args");
list.Add("-encodedarguments");
if ((i + 1) >= args.Count)
{
throw this.NewParameterBindingException(null, ErrorCategory.InvalidArgument, "-args", typeof(string), null, "NoValuesSpecifiedForArgs", new object[0]);
}
string str5 = ConvertArgsValueToEncodedString(args[i + 1]);
i++;
list.Add(str5);
}
else
{
list.Add(obj2);
}
}
if (str == null)
{
list.Add("-inputFormat");
list.Add("xml");
str = "xml";
}
if (str2 == null)
{
list.Add("-outputFormat");
if (outputRedirected)
{
list.Add("xml");
str2 = "xml";
}
else
{
list.Add("text");
str2 = "text";
}
}
if (StartsWith(str, "xml"))
{
this.inputFormatValue = NativeCommandIOFormat.Xml;
}
else
{
this.inputFormatValue = NativeCommandIOFormat.Text;
}
if (StartsWith(str2, "xml"))
{
this.outputFormatValue = NativeCommandIOFormat.Xml;
}
else
{
this.outputFormatValue = NativeCommandIOFormat.Text;
}
if (string.IsNullOrEmpty(hostName) || !hostName.Equals("ConsoleHost", StringComparison.OrdinalIgnoreCase))
{
this.nonInteractive = true;
list.Insert(0, "-noninteractive");
}
return(list);
}
private void HandleSeenParameter(ref MinishellParameters seen, MinishellParameters parameter, string parameterName)
{
if ((seen & parameter) == parameter)
{
throw this.NewParameterBindingException(null, ErrorCategory.InvalidArgument, parameterName, null, null, "ParameterSpecifiedAlready", new object[] { parameterName });
}
seen |= parameter;
}
