[breaking change]
Major changes are as follows:
- Add `Enable-ExperimentalFeature` and `Disable-ExperimentalFeature` cmdlets.
- Remove `-ListAvailable` from `Get-ExperimentalFeature`.
- Add `ArgumentCompleter` for `Get-ExperimentalFeature` cmdlet.
- Refactor some existing Experimental Feature tests.
- Make `ConfigScope` public and renamed `SystemWide` to `AllUsers`. Also update experimental feature code to prefer the current user config over the all user config.
Major changes are as follows:
- Avoid `SecuritySupport.IsProductBinary` and unnecessary AMSI/suspicious code scan at startup time
- Update `CompiledScriptBlockData.IsProductCode` to avoid unnecessary calls to `IsProductBinary`, which attempts to retrieve catalog signature of the target file.
- Update `PerformSecurityChecks` to skip AMSI and suspicious code scan for the `.psd1` file that contains a safe `HashtableAst` only.
- Use customized `ReadOnlyBag` instead of `ImmutableHashSet` so that we can avoid loading the `System.Collections.Immutable.dll` completely.
- Replace `SHA1` with `CRC32` when generating module analysis cache file name
- This remove the loading of `System.Security.Cryptography.Algorithms.dll` at startup
- Move `ConvertFrom-SddlString` to C# to remove the `Utility.psm1` file.
- Crossgen `Microsoft.ApplicationInsights.dll` and enable tiered compilation
- Even pwsh with crossgen assemblies spends a lot time in jitting at the startup, about `191.6ms` comparing with `24.7ms` for Windows PowerShell.
- Jitting `Microsoft.ApplicationInsights.dll` takes about `51.6ms`.
- By crossgen `Microsoft.ApplicationInsights.dll` and enable tiered compilation, the jitting time drops to about `98.9ms`.
Export-ModuleMember cmdlet throws an exception if module functions are exported across language boundaries (Windows only). But a scriptblock LanguageMode property can be null if the scriptblock is created without a PowerShell context, and this can happen through the PowerShell API called from C#. In this case Export-ModuleMember throws erroneously when no language mode restrictions are in play.
Fix is to check if LanguageMode is null before comparing context and scriptblock language modes.
With this commit, users who invoke a command with -Debug will no longer be presented with a prompt asking them if they want to enter a nested prompt, continue execution, or halt execution entirely. Instead, any messages sent to the debug stream will simply be sent to the debug stream and the script will continue execution.
When implementing interfaces, PowerShell incorrectly produces non-virtual get/set methods for interface-defined properties.
This commit adds a lookup method for interface-defined properties and marks get/set methods for properties with matching signatures virtual.
There a some differences in support of named pipes for Windows and non-Windows. Named pipes on Unix have a 104 character path limit. On macOS, the `$env:TMPDIR` (on my system) is already 49 characters; corefx adds 12 more. Since AppDomainName isn't really used, changed it from `DefaultAppDomain` to `None` to shorten the name. Need to keep it since Windows PowerShell expects it. Changed `starttime` part of pipe name to 8 hex characters which is to provide uniqueness to the pipe name.
Consolidation of all Windows PowerShell work ported to PSCore6
* Added ps1 file import restriction. Refactored InvokeLanguageModeTestingSupportCmdlet to HelpersSecurity module
* JEA loop back fix. Debugger running commands in CL mode.
* Support for new AMSI codes. Changed to use AMSI buffer API. Unhandled exception fix.
* Fixes for module bugs while running in ConstrainedLanguage mode
* Untrusted input tracking work
* Configuration keyword bug fix, PSRP protocol version check for reconstruct reconnect, Sharing InitialSessionState in runspace pool.
* Restricted remote session in UMCI, Applocker detection collision, Help command exposing functions, Null reference exception fix.
* Added mitigation for debugger function exposure
[Breaking Change]
When a binary module has the module assembly in GAC, we load the assembly from GAC before trying to load it from module base path.
This change attempts to load it from module base path before looking up in GAC.
The root cause is that `OutputBuffer` is not cleaned up (set to `null`) in `Stop` and `BeginStop/EndStop` when the powershell instance owns the `OutputBuffer` object. Since the pipeline has been intentionally stopped by the caller, the `OutputBuffer` should be set to `null` as well when it's owned by the PowerShell instance, just like how it's cleaned up in `EndInvoke`.
- Adds y suffix that is used to specify a numeric literal as the sbyte data type.
- Can be combined with the existing u suffix as uy to specify the byte data type.
Replace code like BoundParameters.ContainsKey("Delimiter") with BoundParameters.ContainsKey(nameof(Delimiter)). Old pattern come from old C# (<6.0) without nameof().
The type System.IntPtr has an explicit cast operator defined that takes a pointer type System.void* parameter. Now we handle that type properly in GetPSMethodProjectedType.
Fixes#7230.
Adding the concept of a PSSyntheticTypeName, derived from PSTypeName,
that extends it with a list of synthetic members.
This allows us to express the inferred type of
```
[pscustomobject] @{
A = 1
B = "2"
}
```
as a "PSObject#A:B" and with information about the types of A and B.
This is also used to annotate the output of
```
Select-Object -Property
Select-Object -ExcludeProperty
Select-Object -ExpandProperty
```
Finally, it adds information about the types of the
`Group` and `Value` properties of the output of `Group-Object`
'cd +' adds the ability to revert 'cd -' by having another bounded stack with the same limit for 'redo' actions.
Behaviour is similar to back/forward navigation in explorer.exe
When the location is set to a path and the redo stack is non-empty then the redo stack gets flushed.
When cd + happens, then the redo stack is pushed to as well for a more intuitive way of navigating backwards and forwards.
All the work is done of course on the Set-location cmdlet, which is aliased to cd on all platforms.
Support calling methods with ByRef-like type parameters in PowerShell, as long as the argument specified for the parameter can be implicitly/explicitly converted to the ByRef-like type.
We cannot create an instance of a ByRef-like type in PowerShell, but there are types that can be implicitly or explicitly converted to ByRef-like types, such as `T[] -> Span<T>`, `T[] -> ReadOnlySpan<T>`, `String -> ReadOnlySpan<T>`. `ArraySegment<T> -> Span<T>`, `ArraySegment<T> -> ReadOnlySpan<T>`. With changes in this PR, we can call methods with ByRef-like parameter types by providing the arguments of the types that can be cast to the target ByRef-like type.
**What is enabled?**
1. Invoking methods that have ByRef-like parameters, but the return type is not ByRef-like.
2. Invoking constructors with ByRef-like parameters via `[target-type]::new` syntax, but the `target-type` is not ByRef-like.
3. Accessing indexers that have ByRef-like parameters, but the return type is not ByRef-like.
This change updates ModuleIntrinsics.GetModulePath to handle the case where the Windows PowerShell module path is already in the environment's PSModulePath or when launched from a different version of PowerShell.
Previously, GetModulePath would append $PSHOME\Modules to the PSModulePath after removing the path for the launching version without considering the Windows PowerShell module path. The result, was the Windows PowerShell modules were found first and loaded incompatible modules; such as the built-in modules.
The change detects the Windows PowerShell module path and inserts $PSHOME\Modules path before it. The new test simulates launching from a different version of pwsh that has already added the Windows PowerShell module path.
Fixes#7679
Steve Lee