chore/constrain powershell shell

[cornmander]

• chore: force constrained language mode for powershell
• feat: harden powershell command detection

[gemini-code-assist[bot]]

Summary of Changes

Hello @cornmander, I'm Gemini Code Assist[^1]! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request significantly bolsters the security posture of PowerShell command execution within the application. It ensures that PowerShell sessions operate under a strict Constrained Language Mode, limiting access to sensitive system functionalities. Furthermore, it enhances the system's ability to detect and prevent the execution of potentially malicious or unintended PowerShell commands by meticulously parsing and validating command structures.

Highlights

• PowerShell Security Enhancement: Enforces Constrained Language Mode for PowerShell sessions to prevent risky .NET access and other potentially unsafe operations, enhancing overall security.
• Improved PowerShell Command Detection: Introduces more robust parsing logic to identify and block a wider range of disallowed PowerShell command invocations, including scriptblock creation, .NET method calls, and complex call operator usages.
• Comprehensive Test Coverage: Adds new unit tests to validate both the enforcement of Constrained Language Mode and the enhanced PowerShell command detection capabilities, ensuring reliability and correctness.

Using Gemini Code Assist

The full guide for Gemini Code Assist can be found on our documentation page, here are some quick tips.

Invoking Gemini

You can request assistance from Gemini at any point by creating a comment using either /gemini <command> or @gemini-code-assist <command>. Below is a summary of the supported commands on the current page.

Feature	Command	Description
Code Review	/gemini review	Performs a code review for the current pull request in its current state.
Pull Request Summary	/gemini summary	Provides a summary of the current pull request in its current state.
Comment	@gemini-code-assist	Responds in comments when explicitly tagged, both in pull request comments and review comments.
Help	/gemini help	Displays a list of available commands.

Customization

To customize Gemini Code Assist for GitHub experience, repository maintainers can create a configuration file and/or provide a custom code review style guide (such as PEP-8 for Python) by creating and adding files to a .gemini/ folder in the base of the repository. Detailed instructions can be found here.

Limitations & Feedback

Gemini Code Assist may make mistakes. Please leave feedback on any instances where its feedback is incorrect or counter productive. You can react with :thumbsup: and :thumbsdown: on @gemini-code-assist comments. If you're interested in giving your feedback about your experience with Gemini Code Assist for Github and other Google products, sign up here.

You can also get AI-powered code generation, chat, as well as code reviews directly in the IDE at no cost with the Gemini Code Assist IDE Extension.

[^1]: Review the Privacy Notices, Generative AI Prohibited Use Policy, Terms of Service, and learn how to configure Gemini Code Assist in GitHub here. Gemini can make mistakes, so double check it and use code with caution.

[cornmander]

/gemini review

[github-actions[bot]]

Size Change: +3.34 kB (+0.02%)

Total Size: 21.5 MB

Filename	Size	Change
./bundle/gemini.js	21.5 MB	+3.34 kB (+0.02%)

ℹ️ View Unchanged

Filename	Size
./bundle/sandbox-macos-permissive-closed.sb	1.03 kB
./bundle/sandbox-macos-permissive-open.sb	890 B
./bundle/sandbox-macos-permissive-proxied.sb	1.31 kB
./bundle/sandbox-macos-restrictive-closed.sb	3.29 kB
./bundle/sandbox-macos-restrictive-open.sb	3.36 kB
./bundle/sandbox-macos-restrictive-proxied.sb	3.56 kB

_{compressed-size-action}