Shisho

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Introduction

Shisho is a lightweight static code analyzer designed for developers and is the core engine for Shisho products. It is, so to speak, like a pluggable and configurable linter; it gives developers a way to codify your domain knowledge over your code as rules. With powerful automation and integration capabilities, the rules will help you find and fix issues semiautomatically.

demo

Key Concept: Detection-as-Code for Code

Shisho provides a means of achieving Detection-as-Code for your code. It allows us to analyze and transform your source code with our intuitive DSL. Here's an example of policies for Terraform code:

version: '1'
rules:
  - id: 'unencrypted-ebs-volume'
    language: hcl
    message: |
      There was unencrypted EBS module.
    pattern: |
      resource "aws_ebs_volume" :[NAME] {
        :[...X]
      }
    constraints:
      - target: X
        should: not-match
        pattern: |
          encrypted = true
    rewrite: |
      resource "aws_ebs_volume" :[NAME] {
        :[X]
        encrypted = true
      }

Getting Started

Just pull and run our docker image, and you're ready to use 🎉

docker run -i -v $(pwd):/workspace ghcr.io/flatt-security/shisho-cli:latest

See Getting Started to learn Shisho more.

Strengths

Shisho has mainly two strengths: it runs everywhere, and it runs extremely fast.

📝 We already have sed or something like that. There are already several static analysis engines in the world indeed. Now you may wonder why do we need Shisho now.

1. Run Extremely Fast

In addition, Shisho runs everywhere! You can use this tool offline so that you don't need to transfer your code anywhere. One can use Shisho inside Continuous Integration (CI) systems like GitHub Actions.

2. Run Everywhere

Another key aspect of Shisho is speed; it runs so fast with the help of Rust!

Language Support

The current support language is:

  1. Terrafrom
  2. Go
  3. Dockerfile

See the roadmap for further details. You can request new language support at GitHub issues!

Shisho Playground

We provide a test environment to execute your own Shisho rules. Please check Shisho Playground.

Feedback

We'd love to hear your feedback! Feel free to ask Shisho team anything at GitHub issues.

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Getting Started