Major changes are:
- Rename `s_wasSystemPolicyDebugPolicy` to `s_allowDebugOverridePolicy` to make it less confusing. Also slightly refactor `HelperSecurity.psm1` and `ConstrainedLanguageDebugger.Tests.ps1` to remove unneeded code. There is no functional change in this commit.
- Remove the unneeded static property `IsInbox`, as PowerShell Core won't be shipped in-box with Windows in the foreseeable feature. Even if we do in future, we won't be needing it because Windows PowerShell will probably be gone by that time.
- Update 'BindRunspace' to avoid getting all commands and unneeded method calls.
- Avoid creating a `IsSafeValueVisitor` every time when `IsScriptBlockInFactASafeHashtable` runs.
[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`.
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
Add support to experimental features
RFC: https://github.com/PowerShell/PowerShell-RFC/pull/114
Goals:
Allow experimental features to be declared by PowerShell engine and modules.
Allow experimental features to be enabled via powershell.config.json
Allow Function, Cmdlet, parameters and parameter sets to be shown to the user or hiden from the user depending on whether the associated experimetnal feature is on or off.
Allow discover experimental features using cmdlet Get-ExperimentalFeature
* The major refactoring changes are:
- In `ModuleIntrisic.cs`, remove unneeded Windows-PowerShell-only code.
- In `ModuleUtils.cs`
- use the new API `Directory.GetDirectories(string path, string searchPattern, EnumerationOptions enumerationOptions)` and `Directory.GetFiles(string path, string searchPattern, EnumerationOptions enumerationOptions)` to enumerate files and sub-directories within a directory path.
- remove the unused parameter `bool force` from `GetDefaultAvailableModuleFiles(bool force, bool isForAutoDiscovery, ExecutionContext context)`
- refactor the method `GetModuleVersionsFromAbsolutePath`. Add more comments and rename the method name.
- In `ModuleCmdletBase.cs`, refactor the method `GetModuleForNonRootedPaths` to `GetModuleForNames` to simply its implementation.
- In `PSModuleInfo.cs`
- group the declarations of `Declared*Exports` fields together
- rename `_detected*Exports` fields to `Detected*Exports` to group them together. They are internal fields and used outside `PSModuleInfo`.
* There is some perf improvement after this refactoring change:
- For `Get-Module -ListAvailable`, there is about 36% speed improvement for 94 default modules.
- For `Get-Module -ListAvailable -All`, there is about 14% speed improvement for totally 600 module files.
- For `Get-Module <name> -ListAvailable -List`, there is over 17x speed improvement for finding 13 modules from 600 modules. This is because we now filter names using the module file before creating a `PSMdouleInfo` object.
'GetTypeInfo()' were added when porting PowerShell to early version of .NET Core (prior .NET Core 1.0).
Most properties and methods in 'System.Type' were missing at that time. Now the call is not needed anymore and should be removed.
Based on standard practices, we need to have a copyright and license notice at the top of each source file. Removed existing copyrights and updated/added copyright notices for .h, .cpp, .cs, .ps1, and .psm1 files.
Updated module manifests for consistency to have Author = "PowerShell" and Company = "Microsoft Corporation". Removed multiple line breaks.
Separate PR coming to update contribution document for new source files: #6140
Manually reviewed each change.
Fix#6073
Steve Lee