Exclude api_key from agent config to avoid self-hosted auth path

The Go agent uses api_key for self-hosted authentication. Passing
the policy store api_key into agent.json caused the agent to use
self-hosted upload paths, resulting in missing process and file events.

.eslintrc.js

@@ -0,0 +1,33 @@
+module.exports = {
+    "env": {
+        "browser": true,
+        "es2021": true
+    },
+    "extends": [
+        "eslint:recommended",
+        "plugin:@typescript-eslint/recommended"
+    ],
+    "overrides": [
+        {
+            "env": {
+                "node": true
+            },
+            "files": [
+                ".eslintrc.{js,cjs}"
+            ],
+            "parserOptions": {
+                "sourceType": "script"
+            }
+        }
+    ],
+    "parser": "@typescript-eslint/parser",
+    "parserOptions": {
+        "ecmaVersion": "latest",
+        "sourceType": "module"
+    },
+    "plugins": [
+        "@typescript-eslint"
+    ],
+    "rules": {
+    }
+}

.github/dependabot.yml

@@ -0,0 +1,13 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    open-pull-requests-limit: 20
+    schedule:
+      interval: "daily"

.github/workflows/canary.yml

@@ -0,0 +1,49 @@
+name: Test a branch on canary
+on:
+  workflow_dispatch:
+    inputs:
+      COMMIT_SHA:
+        description: 'Commit SHA to be tested'
+        required: true
+
+env:
+  COMMIT_SHA: ${{ github.event.inputs.COMMIT_SHA }}
+defaults:
+  run:
+    shell: pwsh
+
+permissions:  # added using https://github.com/step-security/secure-workflows
+  contents: read
+
+jobs:
+  update_tag:
+    name: Update the rc tag to ${{ github.event.inputs.COMMIT_SHA }} commit
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+    - uses: step-security/harden-runner@5c7944e73c4c2a096b17a9cb74d65b6c2bbafbde # v1
+      with:
+        egress-policy: audit
+        allowed-endpoints:
+          api.github.com:443
+          github.com:443
+
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v2
+    - name: Update the rc tag
+      uses: step-security/publish-action@b438f840875fdcb7d1de4fc3d1d30e86cf6acb5d
+      with:
+        rc-sha: ${{ env.COMMIT_SHA }}
+        rc: true
+
+    - name: Canary test
+      uses: docker://ghcr.io/step-security/integration-test/int:latest
+      env:
+        PAT: ${{ secrets.PAT }}
+        canary: true
+
+    - name: Canary TLS test
+      uses: docker://ghcr.io/step-security/integration-test/int:latest
+      env:
+        PAT: ${{ secrets.PAT }}
+        canary-tls: true

.github/workflows/codeql-analysis.yml

@@ -20,6 +20,9 @@ on:
   schedule:
     - cron: '17 0 * * 2'
 
+permissions:  # added using https://github.com/step-security/secure-workflows
+  contents: read
+
 jobs:
   analyze:
     name: Analyze
@@ -37,12 +40,17 @@ jobs:
         # Learn more about CodeQL language support at https://git.io/codeql-language-support
 
     steps:
+    - name: Harden Runner
+      uses: step-security/harden-runner@5c7944e73c4c2a096b17a9cb74d65b6c2bbafbde
+      with:
+        egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs
+
     - name: Checkout repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v1
+      uses: github/codeql-action/init@2d790406f505036ef40ecba973cc774a50395aac
       with:
         languages: ${{ matrix.language }}
         # If you wish to specify custom queries, you can do so here or in a config file.
@@ -53,7 +61,7 @@ jobs:
     # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
     # If this step fails, then you should remove it and run the build manually (see below)
     - name: Autobuild
-      uses: github/codeql-action/autobuild@v1
+      uses: github/codeql-action/autobuild@2d790406f505036ef40ecba973cc774a50395aac
 
     # ℹ️ Command-line programs to run using the OS shell.
     # 📚 https://git.io/JvXDl
@@ -67,4 +75,4 @@ jobs:
     #   make release
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v1
+      uses: github/codeql-action/analyze@2d790406f505036ef40ecba973cc774a50395aac

.github/workflows/dependency-review.yml

@@ -0,0 +1,27 @@
+# Dependency Review Action
+#
+# This Action will scan dependency manifest files that change as part of a Pull Request,
+# surfacing known-vulnerable versions of the packages declared or updated in the PR.
+# Once installed, if the workflow run is marked as required,
+# PRs introducing known-vulnerable packages will be blocked from merging.
+#
+# Source repository: https://github.com/actions/dependency-review-action
+name: 'Dependency Review'
+on: [pull_request]
+
+permissions:
+  contents: read
+
+jobs:
+  dependency-review:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@5c7944e73c4c2a096b17a9cb74d65b6c2bbafbde # v2.9.1
+        with:
+          egress-policy: audit
+
+      - name: 'Checkout Repository'
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+      - name: 'Dependency Review'
+        uses: actions/dependency-review-action@0c155c5e8556a497adf53f2c18edabf945ed8e70 # v4.3.2

.github/workflows/publish-immutable-actions.yml

@@ -0,0 +1,28 @@
+name: 'Publish Immutable Action Version'
+
+on:
+  release:
+    types: [published]
+
+permissions:
+  contents: read
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      id-token: write
+      packages: write
+
+    steps:
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@cb605e52c26070c328afc4562f0b4ada7618a84e # v2.10.4
+        with:
+          egress-policy: audit
+
+      - name: Checking out
+        uses: actions/checkout@v4
+      - name: Publish
+        id: publish
+        uses: actions/publish-immutable-action@0.0.4

.github/workflows/recurring-int-tests.yml

@@ -0,0 +1,39 @@
+name: Recurring INT tests
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 */2 * * *' # every other hour
+
+permissions:
+  contents: read
+
+jobs:
+  int-tests:
+    name: int tests
+    runs-on: ubuntu-latest
+    steps:
+    - name: Harden Runner
+      uses: step-security/harden-runner@5c7944e73c4c2a096b17a9cb74d65b6c2bbafbde
+      with:
+        egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs
+
+    - name: Canary test
+      uses: docker://ghcr.io/step-security/integration-test/int:latest
+      env:
+        PAT: ${{ secrets.PAT }}
+        canary: true
+
+  int-tls-tests:
+    name: int tls tests
+    runs-on: ubuntu-latest
+    steps:
+    - name: Harden Runner
+      uses: step-security/harden-runner@5c7944e73c4c2a096b17a9cb74d65b6c2bbafbde
+      with:
+        egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs
+
+    - name: Canary test
+      uses: docker://ghcr.io/step-security/integration-test/int:latest
+      env:
+        PAT: ${{ secrets.PAT }}
+        canary-tls: true

.github/workflows/release.yml

@@ -0,0 +1,51 @@
+name: Release new action version
+on:
+  workflow_dispatch:
+    inputs:
+      TAG_NAME:
+        description: 'Tag name that the major tag will point to'
+        required: true
+
+env:
+  TAG_NAME: ${{ github.event.inputs.TAG_NAME || github.event.release.tag_name }}
+defaults:
+  run:
+    shell: pwsh
+
+permissions:  # added using https://github.com/step-security/secure-workflows
+  contents: read
+
+jobs:
+  update_tag:
+    name: Update the major tag to include the ${{ github.event.inputs.TAG_NAME || github.event.release.tag_name }} changes
+    # Remember to configure the releaseNewActionVersion environment with required approvers in the repository settings
+    environment:
+      name: releaseNewActionVersion
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+    - uses: step-security/harden-runner@5c7944e73c4c2a096b17a9cb74d65b6c2bbafbde
+      with:
+        egress-policy: audit
+        allowed-endpoints:
+          api.github.com:443
+          github.com:443
+
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
+    - name: Update the rc tag
+      uses: step-security/publish-action@b438f840875fdcb7d1de4fc3d1d30e86cf6acb5d
+      with:
+        source-tag: ${{ env.TAG_NAME }}
+        rc: true
+
+    - name: Canary test
+      uses: docker://ghcr.io/step-security/integration-test/int:latest
+      env:
+        PAT: ${{ secrets.PAT }}
+        canary: true
+
+    - name: Update the ${{ env.TAG_NAME }} tag
+      uses: step-security/publish-action@b438f840875fdcb7d1de4fc3d1d30e86cf6acb5d
+      with:
+        source-tag: ${{ env.TAG_NAME }}

.github/workflows/runs-on.yml

@@ -0,0 +1,179 @@
+name: RunsOn Tests
+
+on: 
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  test-host-outbound:
+    runs-on:
+      - runs-on=${{ github.run_id }}
+      - runner=2cpu-linux-x64
+      - image=ubuntu24-stepsecurity-x64
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@rc
+        with:
+          egress-policy: audit
+          allowed-endpoints: >
+            github.com:443
+            goreleaser.com:443
+            
+
+      - name: Checkout code
+        uses: actions/checkout@v3
+            
+      - name: Run outbound calls from host
+        run: |
+          start_time=$(date +%s)
+          end_time=$((start_time + 90))  # 5 minutes = 300 seconds
+          
+          while [ $(date +%s) -lt $end_time ]; do
+            curl -I https://www.google.com
+            curl -I https://goreleaser.com
+            sleep 10  # wait 10 seconds between calls
+          done
+  
+  test-docker-outbound:
+    runs-on:
+      - runs-on=${{ github.run_id }}
+      - runner=2cpu-linux-x64
+      - image=ubuntu24-stepsecurity-x64
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@rc
+        with:
+          egress-policy: block
+          allowed-endpoints: >
+            archive.ubuntu.com:80
+            github.com:443
+            goreleaser.com:443
+            production.cloudflare.docker.com:443
+            docker-images-prod.6aa30f8b08e16409b46e0173d6de2f56.r2.cloudflarestorage.com:443
+            *.docker.io:443
+            security.ubuntu.com:80
+         
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Run outbound calls from within Docker container
+        continue-on-error: true
+        run: |
+          # Start the container
+          docker run --rm -d --name test-container ubuntu:latest sleep 90
+          
+          # Install curl in the container
+          docker exec test-container apt-get update
+          docker exec test-container apt-get install -y curl
+          
+          # Print /etc/resolv.conf from the container
+          docker exec test-container cat /etc/resolv.conf
+          
+          # Make outbound calls
+          for i in {1..9}; do
+            docker exec test-container curl -I https://www.google.com
+            docker exec test-container curl -I https://goreleaser.com
+            sleep 10  # wait 10 seconds between calls
+          done
+          
+          # Stop the container
+          docker stop test-container
+
+      
+  test-docker-build-outbound:
+    runs-on:
+      - runs-on=${{ github.run_id }}
+      - runner=2cpu-linux-x64
+      - image=ubuntu24-stepsecurity-x64
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@rc
+        with:
+          egress-policy: audit
+          allowed-endpoints: >
+            archive.ubuntu.com:80
+            auth.docker.io:443
+            github.com:443
+            goreleaser.com:443
+            production.cloudflare.docker.com:443
+            docker-images-prod.6aa30f8b08e16409b46e0173d6de2f56.r2.cloudflarestorage.com:443
+            registry-1.docker.io:443
+            security.ubuntu.com:80
+            
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Build Docker image and test outbound calls during build
+        continue-on-error: true
+        run: |
+          # Create a Dockerfile that installs curl and makes outbound calls
+          cat <<EOF > Dockerfile
+          FROM ubuntu:latest
+          RUN apt-get update && apt-get install -y curl
+          RUN for i in {1..9}; do curl -I https://www.google.com && curl -I https://goreleaser.com; sleep 10; done
+          EOF
+          
+          # Build the Docker image
+          docker build -t test-image .
+          
+          # Print /etc/resolv.conf from the build container (temporary container used during build)
+          container_id=$(docker create test-image)
+          docker start $container_id
+          docker exec $container_id cat /etc/resolv.conf
+          docker stop $container_id
+          docker rm $container_id
+
+      - name: Print Docker logs with journalctl
+        run: |
+            sudo journalctl -u docker.service --no-pager 
+        shell: bash
+      
+  test-long-running-docker:
+    runs-on:
+      - runs-on=${{ github.run_id }}
+      - runner=2cpu-linux-x64
+      - image=ubuntu24-stepsecurity-x64
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@rc
+        with:
+          egress-policy: block
+          allowed-endpoints: >
+            archive.ubuntu.com:80
+            auth.docker.io:443
+            github.com:443
+            goreleaser.com:443
+            production.cloudflare.docker.com:443
+            registry-1.docker.io:443
+            docker-images-prod.6aa30f8b08e16409b46e0173d6de2f56.r2.cloudflarestorage.com:443
+            security.ubuntu.com:80
+            
+
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Run long-running Docker container with outbound calls
+        continue-on-error: true
+        run: |
+          # Start the long-running container
+          docker run --rm -d --name long-running-container ubuntu:latest bash -c "
+            apt-get update && apt-get install -y curl && 
+            while true; do 
+              curl -I https://www.google.com; 
+              curl -I https://goreleaser.com; 
+              sleep 10; 
+            done
+          "
+          
+          # Print /etc/resolv.conf from the container
+          docker exec long-running-container cat /etc/resolv.conf
+          
+          # Let the container run for 5 minutes
+          sleep 90
+          
+          # Stop the container
+          docker stop long-running-container
+     
+      

.github/workflows/scorecards.yml

@@ -0,0 +1,67 @@
+name: Scorecards supply-chain security
+on:
+  # Only the default branch is supported.
+  branch_protection_rule:
+  schedule:
+    # Weekly on Saturdays.
+    - cron: "30 1 * * 6"
+  push:
+    branches: [main, master]
+
+# Declare default permissions as read only.
+permissions: read-all
+
+jobs:
+  analysis:
+    name: Scorecards analysis
+    runs-on: ubuntu-latest
+    permissions:
+      # Needed to upload the results to code-scanning dashboard.
+      security-events: write
+      # Used to receive a badge. (Upcoming feature)
+      id-token: write
+      actions: read
+      contents: read
+
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@5c7944e73c4c2a096b17a9cb74d65b6c2bbafbde # v2.9.1
+        with:
+          egress-policy: audit
+
+      - name: "Checkout code"
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # tag=v3.0.0
+        with:
+          persist-credentials: false
+
+      - name: "Run analysis"
+        uses: ossf/scorecard-action@62b2cac7ed8198b15735ed49ab1e5cf35480ba46 # tag=v1.1.1
+        with:
+          results_file: results.sarif
+          results_format: sarif
+          # (Optional) Read-only PAT token. Uncomment the `repo_token` line below if:
+          # - you want to enable the Branch-Protection check on a *public* repository, or
+          # - you are installing Scorecards on a *private* repository
+          # To create the PAT, follow the steps in https://github.com/ossf/scorecard-action#authentication-with-pat.
+          # repo_token: ${{ secrets.SCORECARD_READ_TOKEN }}
+
+          # Publish the results for public repositories to enable scorecard badges. For more details, see
+          # https://github.com/ossf/scorecard-action#publishing-results.
+          # For private repositories, `publish_results` will automatically be set to `false`, regardless
+          # of the value entered here.
+          publish_results: true
+
+      # Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF
+      # format to the repository Actions tab.
+      - name: "Upload artifact"
+        uses: actions/upload-artifact@4cec3d8aa04e39d1a68397de0c4cd6fb9dce8ec1 # tag=v4.6.1
+        with:
+          name: SARIF file
+          path: results.sarif
+          retention-days: 5
+
+      # Upload the results to GitHub's code scanning dashboard.
+      - name: "Upload to code-scanning"
+        uses: github/codeql-action/upload-sarif@2d790406f505036ef40ecba973cc774a50395aac # tag=v1.0.26
+        with:
+          sarif_file: results.sarif

.github/workflows/test.yml

@@ -0,0 +1,75 @@
+name: Test
+on:
+  pull_request:
+    branches:
+      - main
+  push:
+    branches:
+      - main # to update code coverage
+
+permissions: # added using https://github.com/step-security/secure-workflows
+  contents: read
+concurrency:
+  group: ${{ github.workflow }}
+jobs:
+  test:
+    permissions:
+      checks: write
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@5c7944e73c4c2a096b17a9cb74d65b6c2bbafbde # v2.9.1
+        with:
+          disable-sudo: true
+          egress-policy: audit
+          allowed-endpoints: >
+            api.github.com:443
+            codecov.io:443
+            github.com:443
+            registry.npmjs.org:443
+            storage.googleapis.com:443
+            uploader.codecov.io:443
+
+      - name: Checkout
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+      - name: Install Dependencies
+        run: npm ci
+      - name: Run coverage
+        run: npm test -- --coverage
+      - uses: codecov/codecov-action@eaaf4bedf32dbdc6b720b63067d99c4d77d6047d # v3.1.4
+      - name: Publish Test Results
+        uses: step-security/publish-unit-test-result-action@e88bfc6c0dffc68a1067d63526c80c81f248da11 # v2.20.0
+        if: always()
+        with:
+          files: |
+            reports/*.xml
+
+  build-check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@5c7944e73c4c2a096b17a9cb74d65b6c2bbafbde # v2.9.1
+        with:
+          disable-sudo: true
+          egress-policy: audit
+          allowed-endpoints: >
+            github.com:443
+            registry.npmjs.org:443
+
+      - name: Checkout
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+      - name: Install Dependencies
+        run: npm ci
+      - name: Run build
+        run: npm run build
+      - name: Check for changes in dist
+        run: |
+          if [[ `git status --porcelain dist` ]]; then
+            echo "Changes detected in dist directory after build:"
+            git status --porcelain dist
+            git diff dist
+            exit 1
+          else
+            echo "No changes in dist directory - build is clean"
+          fi

.gitignore

@@ -20,6 +20,7 @@ lib-cov
 
 # Coverage directory used by tools like istanbul
 coverage
+reports
 *.lcov
 
 # nyc test coverage
@@ -101,4 +102,7 @@ typings/
 .dynamodb/
 
 # TernJS port file
-.tern-port
+.tern-port
+
+# vscode files
+.vscode

.pre-commit-config.yaml

@@ -0,0 +1,15 @@
+exclude: ^dist/
+repos:
+- repo: https://github.com/gitleaks/gitleaks
+  rev: v8.16.3
+  hooks:
+  - id: gitleaks
+- repo: https://github.com/pre-commit/mirrors-eslint
+  rev: v8.38.0
+  hooks:
+  - id: eslint
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v4.4.0
+  hooks:
+  - id: end-of-file-fixer
+  - id: trailing-whitespace

README.md

@@ -1,20 +1,195 @@
-<p align="left">
-  <img src="https://step-security-images.s3.us-west-2.amazonaws.com/Final-Logo-06.png" alt="Step Security Logo" width="340">
+<p align="center">
+<picture>
+  <source media="(prefers-color-scheme: light)" srcset="images/harden-runner-new.png" width="400">
+  <img alt="Dark Banner" src="images/harden-runner-new.png" width="400">
+</picture>
 </p>
 
-# Harden Runner
+<div align="center">
 
-This GitHub Action deploys the [Step Security Agent](https://github.com/step-security/agent), which is a purpose-built security agent for hosted runners.
+[![Maintained by stepsecurity.io](https://img.shields.io/badge/maintained%20by-stepsecurity.io-blueviolet)](https://stepsecurity.io/?utm_source=github&utm_medium=organic_oss&utm_campaign=harden-runner)
+[![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/step-security/harden-runner/badge)](https://api.securityscorecards.dev/projects/github.com/step-security/harden-runner)
+[![License: Apache 2.0](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://raw.githubusercontent.com/step-security/harden-runner/main/LICENSE)
 
-To pilot this GitHub Action, add the following code to your GitHub Actions workflow file as the first step. This is the only step needed.
+</div>
 
-```
-steps:
-    - uses: step-security/harden-runner@main
-```
+# Harden-Runner
 
-In the workflow logs, you should see a link to security insights and recommendations.
+Corporate laptops and production servers typically have robust security monitoring in place to reduce risk and meet compliance requirements. However, CI/CD runners, which handle sensitive information like secrets for cloud environments and create production builds, often lack such security measures. This oversight has led to significant supply chain attacks, including the SolarWinds and Codecov breaches.
 
-It is being piloted on [this](https://github.com/shivammathur/setup-php) repository. Check out the [workflow files](https://github.com/shivammathur/setup-php/blob/2f5c2edb229fb5b3dcaeb535cb83899b41854672/.github/workflows/node-workflow.yml#L30) and [workflow runs](https://github.com/shivammathur/setup-php/runs/4252355681?check_suite_focus=true#step:3:4).
+Traditional security monitoring and EDR solutions are ineffective for CI/CD runners due to their ephemeral nature. These tools also lack the necessary context to correlate events with specific workflow runs in a CI/CD environment.
+
+StepSecurity Harden-Runner addresses this gap by providing security monitoring tailored for CI/CD runners, with support for Linux, Windows, and macOS runners. This approach brings CI/CD runners under the same level of security scrutiny as other critical systems, addressing a significant gap in the software supply chain.
+### Harden-Runner: Security Incidents Detected
+
+- [Harden-Runner Detected the tj-actions/changed-files compromise](https://www.stepsecurity.io/blog/harden-runner-detection-tj-actions-changed-files-action-is-compromised) ([CVE-2025-30066](https://github.com/advisories/GHSA-mrrh-fwg8-r2c3))
+- [Harden Runner Detected the Sha1-Hulud Supply Chain Attack in CNCF’s Backstage Repository](https://www.stepsecurity.io/blog/how-harden-runner-detected-the-sha1-hulud-supply-chain-attack-in-cncfs-backstage-repository)
+- [Harden-Runner Detected the NX Build System compromise](https://www.stepsecurity.io/blog/supply-chain-security-alert-popular-nx-build-system-package-compromised-with-data-stealing-malware)
+- [Harden-Runner Detected a CI/CD Supply Chain Attack in Google’s Open-Source Project Flank](https://www.stepsecurity.io/case-studies/flank)
+- [Harden-Runner Detected a CI/CD Supply Chain Attack in Microsoft’s Open-Source Project Azure Karpenter Provider in Real-Time](https://www.stepsecurity.io/case-studies/azure-karpenter-provider)
+- [Harden-Runner Detected Anomalous Traffic to api.ipify.org Across Multiple Customers](https://www.stepsecurity.io/blog/harden-runner-detects-anomalous-traffic-to-api-ipify-org-across-multiple-customers)  
+- [Harden-Runner Detected an Unexpected Microsoft Defender Installation on GitHub-Hosted Ubuntu Runners](https://www.stepsecurity.io/blog/how-stepsecurity-harden-runner-detected-unexpected-microsoft-defender-installation-on-github-hosted-ubuntu-runners)
+- [Harden-Runner Flagged an Anomalous Outbound Call, Leading to a Docker Documentation Update](https://www.stepsecurity.io/blog/harden-runner-flags-anomalous-outbound-call-leading-to-docker-documentation-update)
+
+### See It in Action
+Harden-Runner secures over **18 million CI/CD workflow runs every week**, protecting thousands of pipelines, including those from popular open-source projects by **Microsoft, Google, and CISA**. See how top projects are using Harden-Runner and explore the insights:  
+➡️ [Who's using Harden-Runner?](https://docs.stepsecurity.io/whos-using-harden-runner)
+
+## Quick Links
+- [Getting Started Guide](#getting-started)
+- [Why Choose Harden-Runner](#why-choose-harden-runner)
+- [Features and Capabilities](#features)
+- [Case Studies and Trusted Projects](#trusted-by-and-case-studies)
+- [Environment Compatibility Matrix](#environment-compatibility-matrix)
+- [How It Works](docs/how-it-works.md)
+- [Known Limitations](docs/limitations.md)
+- [Join the Discussions](#discussions)
+- [Official Documentation](https://docs.stepsecurity.io/harden-runner)
+
+---
+
+## Introduction
+
+Learn how Harden-Runner works through the video below, which shows how it detected the tj-actions/changed-files compromise.  [View the interactive demo here](https://app.storylane.io/share/679y2zgzljov).
+
+<a href="https://www.youtube.com/watch?v=oTAJ7Hy7nPU" target="_blank">
+  <img src="images/case-study.png" alt="Harden-Runner detected the tj-actions/changed-files Breach" title="This case study video shows how StepSecurity Harden-Runner detected the tj-actions/changed-files Breach">
+</a>
+
+---
+## Getting Started
+
+This guide walks you through the steps to set up and use Harden-Runner in your CI/CD workflows. For more details, refer to the [official documentation](https://docs.stepsecurity.io/harden-runner).
+
+### **Step 1: Add Harden-Runner to Your Workflow**
+
+To integrate Harden-Runner, follow these steps:
+
+- Open your GitHub Actions workflow file (e.g., `.github/workflows/<workflow-name>.yml`).
+- Add the following code as the first step in each job:
+   ```yaml
+   steps:
+     - name: Harden Runner
+       uses: step-security/harden-runner@5ef0c079ce82195b2a36a210272d6b661572d83e # v2.14.2
+       with:
+         egress-policy: audit
+
+**Tip**: Automate this step by pasting your workflow into the [StepSecurity online tool](https://app.stepsecurity.io/secure-workflow)
+<details>
+<summary>Click to view the full Getting Started Guide</summary>
+
+### **Step 2: Access Security Insights**
+
+Run your workflow. Once completed:
+- Review the **workflow logs** and the **job markdown summary**.
+- Look for a link to **security insights and recommendations**.
+  <p align="left">
+      <img src="images/buildlog1.png" alt="Link in workflow log" >
+    </p>
+- Click on the provided link (e.g., [example link](https://app.stepsecurity.io/github/step-security/github-actions-goat/actions/runs/7704454287?jobid=20996777560&tab=network-events)) to access the **Process Monitor View**, which displays:
+   - **Network events**: Outbound network calls correlated with each step.
+   - **File events**: File writes tracked during the job.
+     <p align="left">
+      <img src="images/network-events.png" alt="Link in network events" >
+    </p>
+
+</details>
+
+---
+## Why Choose Harden-Runner?
+
+- **Prevent Exfiltration:** Prevent the exfiltration of CI/CD secrets and source code.
+- **Detect Tampering:** Identify source code modifications during builds.
+- **Anomaly Detection:** Spot unusual dependencies and workflow behaviors.
+- **Simplify Permissions:** Determine the minimum required `GITHUB_TOKEN` permissions.
 
 
+---
+
+## Features
+
+Harden-Runner offers a comprehensive suite of features to enhance the security of your CI/CD workflows, available in two tiers: **Community** (Free) and **Enterprise** (Paid).
+
+### Community (Free)
+
+- **CI/CD-Aware Event Correlation:** Each outbound network connection, file operation, and process execution is mapped to the exact step, job, and workflow where it occurs.
+- **Automated Baseline Creation:** Harden-Runner builds a baseline for each job based on past outbound network connections.
+- **Anomaly Detection:** Once the baseline is created, any future outbound calls not in the baseline trigger a detection.
+- **Block Network Egress Traffic with Domain Allowlist:** Optionally use the automatically created baseline to control outbound network traffic by specifying allowed domains, preventing unauthorized data exfiltration.
+- **Detect Modification of Source Code:** Monitor and alert on unauthorized changes to your source code during the CI/CD pipeline.
+
+### Enterprise (Paid)
+
+Includes all features in the **Community** tier, plus:
+
+- **Support for Private Repositories:** Extend Harden-Runner's security capabilities to your private GitHub repositories.
+- **Support for Self-Hosted Runners:** Apply security controls and monitoring to self-hosted GitHub Actions runners.
+- **GitHub Checks Integration:** Enable GitHub Checks for Harden-Runner—if the baseline remains unchanged, the check passes; if it changes, the check fails, showing new outbound connections.
+- **View Outbound GitHub API calls at the Job Level:** Monitor HTTPS requests to GitHub APIs
+- **Determine Minimum GITHUB_TOKEN Permissions:** Monitor outbound HTTPS requests to GitHub APIs to recommend the least-privilege permissions needed for your workflows, enhancing security by reducing unnecessary access.
+- **View the Name and Path of Every File Written During the Build Process:** Gain visibility into every file written to the build environment, including the ability to correlate file writes with processes, ensuring complete transparency.
+- **View Process Names and Arguments:** Monitor every process executed during the build process, along with its arguments, and navigate the process tree to detect suspicious activities.
+
+For a detailed comparison and more information, please visit our [Pricing Page](https://www.stepsecurity.io/pricing).
+
+Explore the full feature set in the [Features Documentation](https://docs.stepsecurity.io/harden-runner).
+
+---
+
+## Trusted By and Case Studies
+
+Harden-Runner is trusted by over 11,000 leading open-source projects and enterprises, including Microsoft, Google, Kubernetes, and more.
+
+### Trusted by
+
+
+| [![CISA](https://avatars.githubusercontent.com/u/18539691?s=60&v=4)](https://app.stepsecurity.io/github/cisagov/skeleton-generic/actions/runs/9947319332?jobid=27479776091&tab=network-events) | [![Microsoft](https://avatars.githubusercontent.com/u/6154722?s=60&v=4)](https://app.stepsecurity.io/github/microsoft/ebpf-for-windows/actions/runs/7587031851) | [![Google](https://avatars.githubusercontent.com/u/2810941?s=60&v=4)](https://app.stepsecurity.io/github/GoogleCloudPlatform/functions-framework-ruby/actions/runs/7576989995) | [![DataDog](https://avatars.githubusercontent.com/u/365230?s=60&v=4)](https://app.stepsecurity.io/github/DataDog/stratus-red-team/actions/runs/7446169664) | [![Intel](https://avatars.githubusercontent.com/u/17888862?s=60&v=4)](https://app.stepsecurity.io/github/intel/cve-bin-tool/actions/runs/7590975903) | [![Kubernetes](https://avatars.githubusercontent.com/u/36015203?s=60&v=4)](https://app.stepsecurity.io/github/kubernetes-sigs/cluster-api-provider-azure/actions/runs/7591172950) | [![Node.js](https://avatars.githubusercontent.com/u/9950313?s=60&v=4)](https://app.stepsecurity.io/github/nodejs/node/actions/runs/7591405720) | [![AWS](https://avatars.githubusercontent.com/u/2232217?s=60&v=4)](https://app.stepsecurity.io/github/aws/aperf/actions/runs/7631366761) |
+| --------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------- |
+| **CISA**<br>[Explore](https://app.stepsecurity.io/github/cisagov/skeleton-generic/actions/runs/9947319332?jobid=27479776091&tab=network-events)                                                | **Microsoft**<br>[Explore](https://app.stepsecurity.io/github/microsoft/ebpf-for-windows/actions/runs/7587031851)                                               | **Google**<br>[Explore](https://app.stepsecurity.io/github/GoogleCloudPlatform/functions-framework-ruby/actions/runs/7576989995)                                               | **DataDog**<br>[Explore](https://app.stepsecurity.io/github/DataDog/stratus-red-team/actions/runs/7446169664)                                              | **Intel**<br>[Explore](https://app.stepsecurity.io/github/intel/cve-bin-tool/actions/runs/7590975903)                                                | **Kubernetes**<br>[Explore](https://app.stepsecurity.io/github/kubernetes-sigs/cluster-api-provider-azure/actions/runs/7591172950)                                                | **Node.js**<br>[Explore](https://app.stepsecurity.io/github/nodejs/node/actions/runs/7591405720)                                               | **AWS**<br>[Explore](https://app.stepsecurity.io/github/aws/aperf/actions/runs/7631366761)                                               |
+
+### Enterprise Case Studies
+
+- [How Coveo Strengthened GitHub Actions Security with StepSecurity](https://www.stepsecurity.io/case-studies/coveo)
+- [Hashgraph Achieves Comprehensive CI/CD Security Without Compromising Development Speed](https://www.stepsecurity.io/case-studies/hashgraph)
+- [Chainguard Secures GitHub Actions with StepSecurity](https://www.stepsecurity.io/case-studies/chainguard)
+- [Kapiche secures their GitHub Actions software supply chain with Harden-Runner](https://www.stepsecurity.io/case-studies/kapiche)
+- [Arcjet Enhances CI/CD Security with Harden-Runner](https://www.stepsecurity.io/case-studies/arcjet)
+
+---
+
+## Environment Compatibility Matrix
+
+Harden-Runner is designed to work seamlessly across a variety of runner environments, providing consistent security insights and protections regardless of where your workflows execute. For self-hosted runners, audit mode is deployed directly to the runner infrastructure without requiring any changes to your existing workflows. For more details, refer to the [official documentation](https://docs.stepsecurity.io/harden-runner).
+
+| Environment Type | Compatibility | Audit Mode Deployment | Workflow Changes for Audit Mode |
+|------------------|---------------|--------------------------|-------------------|
+| GitHub-hosted runners (Linux) | ✅ Full support | Add Harden-Runner Action to workflow | Yes |
+| GitHub-hosted runners (Windows, macOS) | ✅ Audit mode only | Add Harden-Runner Action to workflow | Yes |
+| Self-hosted VM runners | ✅ Full support | Include agent in runner image | No |
+| Self-hosted bare-metal runners | ✅ Full support | Install agent as a service | No |
+| Actions Runner Controller (ARC) | ✅ Full support | Deploy as DaemonSet | No |
+| RunsOn Runners | ✅ Full support | Pre-integrated | No |
+
+## How It Works
+
+Want to know the technical details? Dive into the architecture of Harden-Runner and its integrations for GitHub-hosted and self-hosted runners in our [How Harden-Runner Works Documentation](docs/how-it-works.md).
+
+---
+
+## Limitations
+
+While Harden-Runner offers powerful features, there are certain limitations. See the complete list in [Known Limitations](docs/limitations.md).
+
+---
+
+## Discussions
+
+Join the conversation! For questions, ideas, or feedback, visit our [Discussions Page](https://github.com/step-security/harden-runner/discussions).
+
+For enterprise support, email support@stepsecurity.io. Interested in using Harden-Runner in other CI/CD platforms? Reach out to interest@stepsecurity.io.
+
+---
+
+## License
+
+Harden-Runner is open source. See the [LICENSE](LICENSE) file for details.

action.yml

@@ -1,15 +1,51 @@
-name: 'Harden Runner'
-description: 'GitHub Actions Runtime Security'
+name: "Harden-Runner"
+description: "Harden-Runner provides runtime security for GitHub-hosted and self-hosted runners"
 inputs:
   allowed-endpoints:
-    description: 'Allowed endpoints'
+    description: "Only these endpoints will be allowed if egress-policy is set to block"
     required: false
-    default: ''
+    default: ""
+  egress-policy:
+    description: "Policy for outbound traffic, can be either audit or block"
+    required: false
+    default: "block"
+  token:
+    description: "Used to avoid github rate limiting"
+    default: ${{ github.token }}
+  disable-telemetry:
+    description: "Disable sending telemetry to StepSecurity API, can be set to true or false. This can only be set to true when egress-policy is set to block"
+    required: false
+    default: "false"
+  disable-sudo:
+    description: "Disable sudo access for the runner account. Note: This parameter will be deprecated in the future. Please use disable-sudo-and-containers instead."
+    required: false
+    default: "false"
+  disable-sudo-and-containers:
+    description: "Disable sudo and container access for the runner account"
+    required: false
+    default: "false"
+  disable-file-monitoring:
+    description: "Disable file monitoring"
+    required: false
+    default: "false"
+  policy:
+    description: "Policy name to be used from the policy store. Requires id-token: write permission."
+    required: false
+    default: ""
+  api-key:
+    description: "StepSecurity API key for authenticating with the policy store. Required when use-policy-store is set to true."
+    required: false
+    default: ""
+  use-policy-store:
+    description: "Set to true to fetch policy from the policy store using the API key. This is the preferred method over the policy input which requires id-token: write permission. Policies can be defined and attached at workflow, repo, org, or cluster (for ARC) level in the policy store. The most granular policy will apply."
+    required: false
+    default: "false"
+
 branding:
-  icon: 'check-square'  
-  color: 'green'
+  icon: "check-square"
+  color: "green"
 runs:
-  using: 'node12'
-  pre: 'dist/pre/index.js'
-  main: 'dist/index.js'
-  post: 'dist/post/index.js'
+  using: "node24"
+  pre: "dist/pre/index.js"
+  main: "dist/index.js"
+  post: "dist/post/index.js"

dist/pre/cache.txt

@@ -0,0 +1 @@
+# This is sample cache file

docs/how-it-works.md

@@ -0,0 +1,20 @@
+## How Harden-Runner Works?
+
+### GitHub-Hosted Runners
+
+For GitHub-hosted runners, Harden-Runner GitHub Action downloads and installs the StepSecurity Agent.
+
+- The code to monitor file, process, and network activity is in the Agent.
+- The community tier agent for Linux is open-source and can be found [here](https://github.com/step-security/agent). The enterprise agent for Linux and agents for Windows and macOS are closed-source.
+
+### Self-Hosted Actions Runner Controller (ARC) Runners
+
+- ARC Harden Runner daemonset uses eBPF
+- You can find more details in this [blog post](https://www.stepsecurity.io/blog/introducing-harden-runner-for-kubernetes-based-self-hosted-actions-runners)
+- ARC Harden Runner is NOT open source.
+
+### Self-Hosted VM Runners (e.g. on EC2)
+
+- For self-hosted VMs, you add the Harden-Runner agent into your runner image (e.g. AMI).
+- You can find more details in this [blog post](https://www.stepsecurity.io/blog/ci-cd-security-for-self-hosted-vm-runners)
+- Agent for self-hosted VMs is NOT open source.

docs/limitations.md

@@ -0,0 +1,8 @@
+## Limitations
+
+### GitHub-Hosted Runners
+* Harden-Runner is not supported when [job is run in a container](https://docs.github.com/en/actions/using-jobs/running-jobs-in-a-container) with built-in labels such as `ubuntu-latest`, as it needs sudo access on the Ubuntu VM to run. The limitation is if the entire job is run in a container. However, such jobs can be monitored when using custom VM images with GitHub-hosted runners. This is also not a limitation for Self-Hosted runners.
+
+### Self-Hosted Actions Runner Controller (ARC) Runners
+
+* Since ARC Harden Runner uses eBPF, only Linux jobs are supported. Windows and MacOS jobs are not supported.

jest.config.ts

@@ -0,0 +1,9 @@
+/** @type {import('ts-jest/dist/types').InitialOptionsTsJest} */
+export default {
+  preset: "ts-jest",
+  testEnvironment: "node",
+  reporters: [
+    "default",
+    ["jest-junit", { outputDirectory: "reports", outputName: "report.xml" }],
+  ],
+};

osv-scanner.toml

@@ -0,0 +1,15 @@
+[[IgnoredVulns]]
+id = "GHSA-h5c3-5r3r-rr8q"
+reason = "Untrusted headers are not processed"
+
+[[IgnoredVulns]]
+id = "GHSA-rmvr-2pp2-xj38"
+reason = "Untrusted headers are not processed"
+
+[[IgnoredVulns]]
+id = "GHSA-xx4v-prfh-6cgc"
+reason = "Untrusted headers are not processed"
+
+[[IgnoredVulns]]
+id = "GHSA-g9mf-h72j-4rw9"
+reason = "undici fetch() is only used to call GitHub API; exploitation requires a malicious server"

package.json

@@ -1,46 +1,53 @@
 {
-    "name": "step-security-harden-runner",
-    "version": "0.4.0",
-    "description": "GitHub Actions Runtime Security",
-    "main": "index.js",
-    "scripts": {
-        "build": "npm run main && npm run pre && npm run post",
-        "main": "ncc build src/index.ts --source-map",
-        "pre": "ncc build src/setup.ts --source-map -o dist/pre",
-        "post": "ncc build src/cleanup.ts --source-map -o dist/post",
-        "lint": "eslint src/**/*.ts"
-    },
-    "repository": {
-        "type": "git",
-        "url": "git+https://github.com/step-security/harden-runner.git"
-    },
-    "keywords": [],
-    "author": "Varun Sharma",
-    "license": "Apache License 2.0",
-    "bugs": {
-        "url": "https://github.com/step-security/harden-runner/issues"
-    },
-    "homepage": "https://github.com/step-security/harden-runner#readme",
-    "dependencies": {
-        "@actions/core": "^1.5.0",
-        "@actions/exec": "^1.1.0",
-        "@actions/github": "^5.0.0",
-        "@actions/http-client": "^1.0.11",
-        "@actions/tool-cache": "^1.7.1",
-        "node-fetch": "^2.6.1",
-        "uuid": "^8.3.2"
-    },
-    "devDependencies": {
-        "@types/jest": "^27.0.1",
-        "@types/node": "^16.9.0",
-        "@typescript-eslint/eslint-plugin": "^4.29.2",
-        "@typescript-eslint/parser": "^4.29.2",
-        "@vercel/ncc": "^0.30.0",
-        "eslint": "^7.32.0",
-        "eslint-config-google": "^0.14.0",
-        "jest": "^26.6.3",
-        "jest-junit": "^12.2.0",
-        "ts-jest": "^26.5.6",
-        "typescript": "^4.3.5"
-    }
+  "name": "step-security-harden-runner",
+  "version": "2.7.0",
+  "description": "Security agent for GitHub-hosted runner: block egress traffic & detect code overwrite to prevent breaches",
+  "main": "index.js",
+  "scripts": {
+    "build": "npm run main && npm run pre && npm run post",
+    "main": "ncc build src/index.ts --source-map",
+    "pre": "ncc build src/setup.ts --source-map -o dist/pre",
+    "post": "ncc build src/cleanup.ts --source-map -o dist/post",
+    "lint": "eslint src/**/*.ts",
+    "test": "jest"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/step-security/harden-runner.git"
+  },
+  "keywords": [],
+  "author": "Varun Sharma",
+  "license": "Apache License 2.0",
+  "bugs": {
+    "url": "https://github.com/step-security/harden-runner/issues"
+  },
+  "homepage": "https://github.com/step-security/harden-runner#readme",
+  "dependencies": {
+    "@actions/cache": "^4.0.0",
+    "@actions/core": "^1.5.0",
+    "@actions/exec": "^1.1.0",
+    "@actions/github": "^6.0.1",
+    "@actions/http-client": "^2.0.1",
+    "@actions/tool-cache": "^1.7.1",
+    "@babel/helpers": "^7.26.10",
+    "ansi-regex": ">=5.0.1",
+    "is-docker": "^3.0.0",
+    "node-fetch": ">=3.2.0",
+    "uuid": "^8.3.2"
+  },
+  "devDependencies": {
+    "@types/jest": "^27.5.2",
+    "@types/node": "^16.9.0",
+    "@typescript-eslint/eslint-plugin": "^6.1.0",
+    "@typescript-eslint/parser": "^6.1.0",
+    "@vercel/ncc": "^0.38.3",
+    "eslint": "^7.32.0",
+    "eslint-config-google": "^0.14.0",
+    "jest": "^29.3.1",
+    "jest-junit": ">=13.0.0",
+    "nock": "^13.3.0",
+    "ts-jest": "^29.0.3",
+    "ts-node": "^10.9.1",
+    "typescript": "^4.3.5"
+  }
 }

src/arc-runner.test.ts

@@ -0,0 +1,9 @@
+import { isARCRunner } from "./arc-runner";
+
+it("should correctly recognize arc based runner", async () => {
+  process.env["GITHUB_ACTIONS_RUNNER_EXTRA_USER_AGENT"] =
+    "actions-runner-controller/2.0.1";
+
+  let isArc: boolean = await isARCRunner();
+  expect(isArc).toBe(true);
+});

src/arc-runner.ts

@@ -0,0 +1,57 @@
+import * as cp from "child_process";
+import * as fs from "fs";
+import path from "path";
+
+export function isARCRunner(): boolean {
+  const runnerUserAgent = process.env["GITHUB_ACTIONS_RUNNER_EXTRA_USER_AGENT"];
+
+  let isARC = false;
+
+  if (!runnerUserAgent) {
+    isARC = false;
+  } else {
+    isARC = runnerUserAgent.includes("actions-runner-controller/");
+  }
+
+  return isARC || isSecondaryPod();
+}
+
+function isSecondaryPod(): boolean {
+  const workDir = "/__w";
+  let hasKubeEnv = process.env["KUBERNETES_PORT"] !== undefined;
+  return fs.existsSync(workDir) && hasKubeEnv;
+}
+
+export function sendAllowedEndpoints(endpoints: string): void {
+  const startTime = Date.now();
+  const allowedEndpoints = endpoints.split(" "); // endpoints are space separated
+
+  let sent = 0;
+  for (let endpoint of allowedEndpoints) {
+    endpoint = endpoint.trim();
+    if (endpoint.length > 0) {
+      let encodedEndpoint = Buffer.from(endpoint).toString("base64");
+      let endpointPolicyStr = `step_policy_endpoint_${encodedEndpoint}`;
+      echo(endpointPolicyStr);
+      sent++;
+    }
+  }
+
+  if (sent > 0) {
+    applyPolicy(sent);
+  }
+
+  const duration = Date.now() - startTime;
+  console.log(
+    `[harden-runner] sendAllowedEndpoints completed in ${duration}ms (sent ${sent} endpoints)`
+  );
+}
+
+function applyPolicy(count: number): void {
+  let applyPolicyStr = `step_policy_apply_${count}`;
+  echo(applyPolicyStr);
+}
+
+function echo(content: string) {
+  cp.execFileSync("echo", [content]);
+}

src/cache.ts

@@ -0,0 +1,22 @@
+export const cacheKey = "harden-runner-cacheKey";
+export const cacheFile = "/home/agent/cache.txt";
+
+export interface ArtifactCacheEntry {
+  cacheKey?: string;
+  scope?: string;
+  creationTime?: string;
+  archiveLocation?: string;
+}
+
+export enum CompressionMethod {
+  Gzip = "gzip",
+  // Long range mode was added to zstd in v1.3.2.
+  // This enum is for earlier version of zstd that does not have --long support
+  ZstdWithoutLong = "zstd-without-long",
+  Zstd = "zstd",
+}
+// Refer: https://github.com/actions/cache/blob/12681847c623a9274356751fdf0a63576ff3f846/src/utils/actionUtils.ts#L53
+const RefKey = "GITHUB_REF";
+export function isValidEvent(): boolean {
+  return RefKey in process.env && Boolean(process.env[RefKey]);
+}

src/checksum.ts

@@ -0,0 +1,60 @@
+import * as core from "@actions/core";
+import * as crypto from "crypto";
+import * as fs from "fs";
+
+const CHECKSUMS = {
+  tls: {
+    amd64: "d4b80f15758bb950787000e802cc58a565919a8cb9ecf405777b304ef42911fe", // v1.7.15
+    arm64: "3c224ea1da1776d1ba9f70b8dd8f0d8432230a7c2d464bca84bbdee8b7d46f6c",
+  },
+  non_tls: {
+    amd64: "4aaaeebbe10e619d8ce13e8cc4a1acbafc8f891e8cdd319984480b9ec08407b8", // v0.15.0
+  },
+  darwin: "797399a3a3f6f9c4c000a02e0d8c7b16499129c9bdc2ad9cf2a10072c10654fb", // v0.0.4
+  windows: {
+    amd64: "e98f8b9cf9ecf6566f1e16a470fbe4aef01610a644fd8203a1bab3ff142186c8", // v1.0.0
+  },
+};
+
+// verifyChecksum returns true if checksum is valid
+export function verifyChecksum(
+  downloadPath: string,
+  isTLS: boolean,
+  variant: string,
+  platform: string
+) {
+  const fileBuffer: Buffer = fs.readFileSync(downloadPath);
+  const checksum: string = crypto
+    .createHash("sha256")
+    .update(fileBuffer)
+    .digest("hex"); // checksum of downloaded file
+
+  let expectedChecksum: string = "";
+
+  switch (platform) {
+    case "linux":
+      expectedChecksum = isTLS
+        ? CHECKSUMS["tls"][variant]
+        : CHECKSUMS["non_tls"][variant];
+      break;
+    case "darwin":
+      expectedChecksum = CHECKSUMS["darwin"];
+      break;
+    case "win32":
+      expectedChecksum = CHECKSUMS["windows"][variant];
+      break;
+    default:
+      console.log(`Unsupported platform: ${platform}`);
+      return false;
+  }
+
+  if (checksum !== expectedChecksum) {
+    core.setFailed(
+      `❌ Checksum verification failed, expected ${expectedChecksum} instead got ${checksum}`
+    );
+    return false;
+  }
+
+  core.info(`✅ Checksum verification passed. checksum=${checksum}`);
+  return true;
+}

src/cleanup.ts

@@ -1,9 +1,78 @@
 import * as fs from "fs";
+import * as common from "./common";
 import * as cp from "child_process";
+import * as path from "path";
+import isDocker from "is-docker";
+import { isARCRunner } from "./arc-runner";
+import { isGithubHosted } from "./tls-inspect";
+import { context } from "@actions/github";
+import { isPlatformSupported, isAgentInstalled } from "./utils";
 
 (async () => {
-  if (process.platform !== "linux") {
-    console.log("Only runs on linux");
+  console.log("[harden-runner] post-step");
+
+  const customProperties = context?.payload?.repository?.custom_properties || {};
+  if (customProperties["skip-harden-runner"] === "true") {
+    console.log("Skipping harden-runner: custom property 'skip-harden-runner' is set to 'true'");
+    return;
+  }
+
+  if (!isPlatformSupported(process.platform)) {
+    console.log(common.UNSUPPORTED_RUNNER_MESSAGE);
+    return;
+  }
+  if (isGithubHosted() && isDocker()) {
+    console.log(common.CONTAINER_MESSAGE);
+    return;
+  }
+
+  if (isARCRunner()) {
+    console.log(`[!] ${common.ARC_RUNNER_MESSAGE}`);
+    return;
+  }
+
+  if (process.env.STATE_selfHosted === "true") {
+    return;
+  }
+
+  if (process.env.STATE_customVMImage === "true") {
+    return;
+  }
+
+  if (
+    String(process.env.STATE_monitorStatusCode) ===
+    common.STATUS_HARDEN_RUNNER_UNAVAILABLE
+  ) {
+    console.log(common.HARDEN_RUNNER_UNAVAILABLE_MESSAGE);
+    return;
+  }
+
+  switch (process.platform) {
+    case "linux":
+      await handleLinuxCleanup();
+      break;
+    case "win32":
+      await handleWindowsCleanup();
+      break;
+    case "darwin":
+      await handleMacosCleanup();
+      break;
+  }
+
+  try {
+    await common.addSummary();
+  } catch (exception) {
+    console.log(exception);
+  }
+})();
+
+async function handleLinuxCleanup() {
+  if (process.env.STATE_isTLS === "false" && process.arch === "arm64") {
+    return;
+  }
+
+  if (isGithubHosted() && fs.existsSync("/home/agent/post_event.json")) {
+    console.log("Post step already executed, skipping");
     return;
   }
 
@@ -12,8 +81,8 @@ import * as cp from "child_process";
     JSON.stringify({ event: "post" })
   );
 
-  var doneFile = "/home/agent/done.json";
-  var counter = 0;
+  const doneFile = "/home/agent/done.json";
+  let counter = 0;
   while (true) {
     if (!fs.existsSync(doneFile)) {
       counter++;
@@ -23,16 +92,26 @@ import * as cp from "child_process";
         break;
       }
       await sleep(1000);
-    } // The file *does* exist
-    else {
+    } else {
+      // The file *does* exist
       break;
     }
   }
 
-  var log = "/home/agent/agent.log";
-  console.log("log:");
-  var content = fs.readFileSync(log, "utf-8");
-  console.log(content);
+  const log = "/home/agent/agent.log";
+  if (fs.existsSync(log)) {
+    console.log("log:");
+    var content = fs.readFileSync(log, "utf-8");
+    console.log(content);
+  }
+
+  const daemonLog = "/home/agent/daemon.log";
+  if (fs.existsSync(daemonLog)) {
+    console.log("daemonLog:");
+    var content = fs.readFileSync(daemonLog, "utf-8");
+    console.log(content);
+  }
+
   var status = "/home/agent/agent.status";
   if (fs.existsSync(status)) {
     console.log("status:");
@@ -40,14 +119,185 @@ import * as cp from "child_process";
     console.log(content);
   }
 
-  if (!fs.existsSync(doneFile)) {
-    var journalLog = cp.execSync("sudo journalctl -u agent.service", {
-      encoding: "utf8",
-    });
-    console.log("Service log:");
-    console.log(journalLog);
+  var disable_sudo = process.env.STATE_disableSudo;
+  var disable_sudo_and_containers = process.env.STATE_disableSudoAndContainers;
+
+  if (disable_sudo !== "true" && disable_sudo_and_containers !== "true") {
+    try {
+      var journalLog = cp.execSync(
+        "sudo journalctl -u agent.service --lines=1000",
+        {
+          encoding: "utf8",
+          maxBuffer: 1024 * 1024 * 10, // 10MB buffer
+        }
+      );
+      console.log("agent.service log:");
+      console.log(journalLog);
+    } catch (error) {
+      console.log("Warning: Could not fetch service logs:", error.message);
+    }
   }
-})();
+}
+
+async function handleMacosCleanup() {
+  const post_event = "/opt/step-security/post_event.json";
+
+  if (isGithubHosted() && fs.existsSync(post_event)) {
+    console.log("Post step already executed, skipping");
+    return;
+  }
+
+  fs.writeFileSync(post_event, JSON.stringify({ event: "post" }));
+
+  // if agent is installed; wait for it to create done.json
+  if (isAgentInstalled(process.platform)) {
+    let macDone = "/opt/step-security/done.json";
+    let counter = 0;
+    while (true) {
+      if (!fs.existsSync(macDone)) {
+        counter++;
+        if (counter > 10) {
+          console.log("timed out");
+          break;
+        }
+        await sleep(1000);
+      } else {
+        // The file *does* exist
+        break;
+      }
+    }
+  }
+
+  let macAgentLog = "/opt/step-security/agent.log";
+  if (fs.existsSync(macAgentLog)) {
+    console.log("macAgentLog:");
+    var content = fs.readFileSync(macAgentLog, "utf-8");
+    console.log(content);
+  } else {
+    console.log("😭 macos agent.log file not found");
+  }
+
+  // Capture system log stream for harden-runner subsystem
+  try {
+    console.log("\nSystem log stream for io.stepsecurity.harden-runner:");
+    const logStreamOutput = cp.execSync(
+      "log show --predicate 'subsystem == \"io.stepsecurity.harden-runner\"' --info --last 10m",
+      {
+        encoding: "utf8",
+        maxBuffer: 1024 * 1024 * 10, // 10MB buffer
+        timeout: 5000, // 5 seconds timeout
+      }
+    );
+    console.log(logStreamOutput);
+  } catch (error) {
+    console.log("Warning: Could not fetch system log stream:", error.message);
+  }
+}
+
+async function handleWindowsCleanup() {
+  // windows cleanup
+  const agentDir = process.env.STATE_agentDir || "C:\\agent";
+  const postEventFile = path.join(agentDir, "post_event.json");
+
+  if (isGithubHosted() && fs.existsSync(postEventFile)) {
+    console.log("Windows post step already executed, skipping");
+    return;
+  }
+
+  if (process.arch === "arm64") {
+    console.log(common.ARM64_WINDOWS_RUNNER_MESSAGE);
+    return;
+  }
+
+  const p = cp.spawn(
+    "powershell.exe",
+    [
+      "-NoProfile",
+      "-NonInteractive",
+      "-Command",
+      "query user; exit $LASTEXITCODE",
+    ],
+    { stdio: ["ignore", "pipe", "pipe"], shell: false, windowsHide: true }
+  );
+  p.unref();
+
+  fs.writeFileSync(postEventFile, JSON.stringify({ event: "post" }));
+
+  // if agent is installed; wait for it to create done.json
+  if (isAgentInstalled(process.platform)) {
+    const doneFile = path.join(agentDir, "done.json");
+    let counter = 0;
+    while (true) {
+      if (!fs.existsSync(doneFile)) {
+        counter++;
+        if (counter > 10) {
+          console.log("timed out");
+          break;
+        }
+        await sleep(1000);
+      } else {
+        break;
+      }
+    }
+  }
+
+  console.log("stopping windows agent process...");
+  const pidFile = path.join(agentDir, "agent.pid");
+
+  try {
+    if (!fs.existsSync(pidFile)) {
+      console.log("PID file not found. Agent may not be running.");
+      return;
+    }
+
+    const pid = parseInt(fs.readFileSync(pidFile, "utf8").trim());
+    console.log(`agent PID from file: ${pid}`);
+
+    try {
+      process.kill(pid, 0); // signal 0 just checks if process exists
+    } catch {
+      console.log("agent process not running.");
+      fs.unlinkSync(pidFile);
+      return;
+    }
+
+    console.log(`stopping agent process (PID: ${pid})...`);
+    process.kill(pid, "SIGINT");
+
+    let gracefulShutdown = false;
+    for (let i = 0; i < 10; i++) {
+      await sleep(1000);
+
+      try {
+        process.kill(pid, 0); // check if still exists
+      } catch {
+        gracefulShutdown = true;
+        console.log("agent process stopped gracefully");
+        break;
+      }
+    }
+
+    if (!gracefulShutdown) {
+      console.log("graceful shutdown timeout (10s), forcing termination...");
+      process.kill(pid, "SIGKILL");
+      console.log("agent process terminated forcefully");
+    }
+
+    if (fs.existsSync(pidFile)) {
+      fs.unlinkSync(pidFile);
+      console.log("PID file cleaned up");
+    }
+  } catch (error) {
+    console.log("warning: error stopping agent process:", error.message);
+  }
+
+  const log = path.join(agentDir, "agent.log");
+  if (fs.existsSync(log)) {
+    console.log("agent log:");
+    const content = fs.readFileSync(log, "utf-8");
+    console.log(content);
+  }
+}
 
 function sleep(ms) {
   return new Promise((resolve) => {

src/common.test.ts

@@ -0,0 +1,28 @@
+import { processLogLine } from "./common"; // import the function
+
+describe("processLogLine function", () => {
+  it("correctly processes the log line and adds an entry to the array", () => {
+    const tableEntries: {
+      pid: string;
+      process: string;
+      domain: string;
+      ipAddress: string;
+      status: string;
+    }[] = [];
+    const logLine =
+      "Thu, 15 Jun 2023 05:35:29 GMT:endpoint called ip address:port 104.16.24.35:443, domain: registry.npmjs.org., pid: 2135, process: node.";
+
+    processLogLine(logLine, tableEntries);
+
+    // Check if a single entry is added to the array
+    expect(tableEntries.length).toBe(1);
+
+    // Check if the entry's properties are set correctly
+    const entry = tableEntries[0];
+    expect(entry.pid).toBe("2135");
+    expect(entry.process).toBe("node");
+    expect(entry.domain).toBe("registry.npmjs.org.");
+    expect(entry.ipAddress).toBe("104.16.24.35:443");
+    expect(entry.status).toBe("✅ Allowed"); // Since the IP address is not '54.185.253.63', status should be '✔️ Allowed'
+  });
+});

src/common.ts

@@ -1,3 +1,7 @@
+import * as core from "@actions/core";
+import { STEPSECURITY_API_URL, STEPSECURITY_WEB_URL } from "./configs";
+import { getAnnotationLogs } from "./utils";
+
 export function printInfo(web_url) {
   console.log(
     "\x1b[32m%s\x1b[0m",
@@ -8,3 +12,139 @@ export function printInfo(web_url) {
     `${web_url}/github/${process.env["GITHUB_REPOSITORY"]}/actions/runs/${process.env["GITHUB_RUN_ID"]}`
   );
 }
+
+export const processLogLine = (
+  line: string,
+  tableEntries: {
+    pid: string;
+    process: string;
+    domain: string;
+    ipAddress: string;
+    status: string;
+  }[]
+): void => {
+  if (
+    line.includes("pid") &&
+    line.includes("process") &&
+    line.includes("domain") &&
+    line.includes("ip address")
+  ) {
+    const matches = line.match(
+      /ip address:port ([\d.:]+), domain: ([\w.-]+), pid: (\d+), process: (\w+)/
+    );
+    if (matches) {
+      const [ipAddress, domain, pid, process] = matches.slice(1);
+
+      // Check if all values are non-empty and domain does not end with specified patterns
+      if (
+        pid &&
+        process &&
+        domain &&
+        ipAddress &&
+        !domain.endsWith(".actions.githubusercontent.com.") &&
+        !domain.endsWith(".blob.core.windows.net.")
+      ) {
+        const status = ipAddress.startsWith("54.185.253.63")
+          ? "❌ Blocked"
+          : "✅ Allowed";
+
+        tableEntries.push({ pid, process, domain, ipAddress, status });
+      }
+    }
+  }
+};
+
+export async function addSummary() {
+  if (process.env.STATE_addSummary !== "true") {
+    return;
+  }
+
+  const correlation_id = process.env.STATE_correlation_id;
+  if (!correlation_id) {
+    return;
+  }
+
+
+  let needsSubscription = false;
+  try {
+    let data = getAnnotationLogs(process.platform);
+    if (
+      data !== undefined &&
+      data.includes("StepSecurity Harden Runner is disabled")
+    ) {
+      needsSubscription = true;
+    }
+  } catch (err) {
+    //console.error(err);
+  }
+
+  if (needsSubscription) {
+    await core.summary
+      .addSeparator()
+      .addRaw(
+        `<h2>⚠️ Your GitHub Actions Runtime Security is currently disabled!</h2>`
+      );
+
+    await core.summary
+      .addRaw(
+        `
+<p>It appears that you're using the <a href="https://github.com/step-security/harden-runner">Harden-Runner GitHub Action</a> by StepSecurity within a private repository. However, runtime security is not enabled as your organization hasn't signed up for a free trial or a paid subscription yet.</p>
+<p>To enable runtime security, start a free trial today by installing the <a href="https://github.com/apps/stepsecurity-actions-security">StepSecurity Actions Security GitHub App</a>. For more information or assistance, feel free to reach out to us through our <a href="https://www.stepsecurity.io/contact">contact form</a>.</p>
+`
+      )
+      .addSeparator()
+      .write();
+    return;
+  }
+
+  // Extract owner and repo from GITHUB_REPOSITORY (format: owner/repo)
+  const [owner, repo] = process.env["GITHUB_REPOSITORY"]?.split("/") || [];
+  const run_id = process.env["GITHUB_RUN_ID"];
+
+  if (!owner || !repo || !run_id || !correlation_id) {
+    return;
+  }
+
+  // Fetch job summary from API
+  const apiUrl = `${STEPSECURITY_API_URL}/github/${owner}/${repo}/actions/runs/${run_id}/correlation/${correlation_id}/job-markdown-summary`;
+
+  try {
+    const response = await fetch(apiUrl);
+    if (!response.ok) {
+      console.error(`Failed to fetch job summary: ${response.status} ${response.statusText}`);
+      return;
+    }
+
+    const markdownSummary = await response.text();
+
+    // Render the markdown summary using core.summary.addRaw
+    await core.summary.addRaw(markdownSummary).write();
+    return;
+  } catch (error) {
+    console.error(`Error fetching job summary: ${error}`);
+    return;
+  }
+}
+
+export const STATUS_HARDEN_RUNNER_UNAVAILABLE = "409";
+
+export const CONTAINER_MESSAGE =
+  "This job is running in a container. Such jobs can be monitored by installing Harden Runner in a custom VM image for GitHub-hosted runners.";
+
+export const UNSUPPORTED_RUNNER_MESSAGE =
+  "This job is not running in a GitHub Actions Hosted Runner. Harden Runner is only supported on GitHub-hosted runners (Ubuntu, Windows, and macOS). This job will not be monitored.";
+
+export const SELF_HOSTED_RUNNER_MESSAGE =
+  "This job is running on a self-hosted runner.";
+
+export const HARDEN_RUNNER_UNAVAILABLE_MESSAGE =
+  "Sorry, we are currently experiencing issues with the Harden Runner installation process. It is currently unavailable.";
+
+export const ARC_RUNNER_MESSAGE =
+  "Workflow is currently being executed in ARC based runner.";
+
+export const ARM64_RUNNER_MESSAGE =
+  "ARM runners are not supported in the Harden-Runner community tier.";
+
+export const ARM64_WINDOWS_RUNNER_MESSAGE =
+  "Windows ARM runners are not yet supported by Harden-Runner.";

src/configs.ts

@@ -0,0 +1,8 @@
+export const STEPSECURITY_ENV = "agent"; // agent or int
+
+export const STEPSECURITY_API_URL = `https://${STEPSECURITY_ENV}.api.stepsecurity.io/v1`;
+
+export const STEPSECURITY_TELEMETRY_URL =
+  "https://prod.app-api.stepsecurity.io/v1";
+
+export const STEPSECURITY_WEB_URL = "https://app.stepsecurity.io";

src/index.ts

@@ -1,11 +1,50 @@
-import { printInfo } from "./common";
+import * as common from "./common";
+import * as core from "@actions/core";
+import isDocker from "is-docker";
+import { STEPSECURITY_WEB_URL } from "./configs";
+import { isGithubHosted } from "./tls-inspect";
+import { context } from "@actions/github";
+import { isPlatformSupported } from "./utils";
 
 (async () => {
-  if (process.platform !== "linux") {
-    console.log("Only runs on linux");
+  console.log("[harden-runner] main-step");
+
+  const customProperties = context?.payload?.repository?.custom_properties || {};
+  if (customProperties["skip-harden-runner"] === "true") {
+    console.log("Skipping harden-runner: custom property 'skip-harden-runner' is set to 'true'");
     return;
   }
 
-  var web_url = "https://app.stepsecurity.io";
-  printInfo(web_url);
+  if (!isPlatformSupported(process.platform)) {
+    console.log(common.UNSUPPORTED_RUNNER_MESSAGE);
+    return;
+  }
+  if (isGithubHosted() && isDocker()) {
+    console.log(common.CONTAINER_MESSAGE);
+    return;
+  }
+
+  if (
+    String(process.env.STATE_monitorStatusCode) ===
+    common.STATUS_HARDEN_RUNNER_UNAVAILABLE
+  ) {
+    console.log(common.HARDEN_RUNNER_UNAVAILABLE_MESSAGE);
+    return;
+  }
+
+  if (process.env.STATE_isTLS === "false" && process.arch === "arm64") {
+    return;
+  }
+
+  if (
+    core.getBooleanInput("disable-telemetry") &&
+    core.getInput("egress-policy") === "block"
+  ) {
+    console.log(
+      "Telemetry will not be sent to StepSecurity API as disable-telemetry is set to true"
+    );
+  } else {
+    var web_url = STEPSECURITY_WEB_URL;
+    common.printInfo(web_url);
+  }
 })();

src/install-agent.ts

@@ -0,0 +1,224 @@
+import * as tc from "@actions/tool-cache";
+import * as core from "@actions/core";
+import * as cp from "child_process";
+import * as path from "path";
+import * as fs from "fs";
+import { verifyChecksum } from "./checksum";
+import { EOL } from "os";
+import { ARM64_RUNNER_MESSAGE, ARM64_WINDOWS_RUNNER_MESSAGE } from "./common";
+import { chownForFolder } from "./utils";
+
+export async function installAgent(
+  isTLS: boolean,
+  configStr: string
+): Promise<boolean> {
+  // Note: to avoid github rate limiting
+  const token = core.getInput("token", { required: true });
+  const auth = `token ${token}`;
+
+  const variant = process.arch === "x64" ? "amd64" : "arm64";
+
+  let downloadPath: string;
+
+  fs.appendFileSync(process.env.GITHUB_STATE, `isTLS=${isTLS}${EOL}`, {
+    encoding: "utf8",
+  });
+
+  if (isTLS) {
+    downloadPath = await tc.downloadTool(
+      `https://github.com/step-security/agent-ebpf/releases/download/v1.7.15/harden-runner_1.7.15_linux_${variant}.tar.gz`,
+      undefined,
+      auth
+    );
+  } else {
+    if (variant === "arm64") {
+      console.log(ARM64_RUNNER_MESSAGE);
+      return false;
+    }
+    downloadPath = await tc.downloadTool(
+      "https://github.com/step-security/agent/releases/download/v0.15.0/agent_0.15.0_linux_amd64.tar.gz",
+      undefined,
+      auth
+    );
+  }
+
+  if (!verifyChecksum(downloadPath, isTLS, variant, "linux")) {
+    return false;
+  }
+
+  const extractPath = await tc.extractTar(downloadPath);
+
+  let cmd = "cp",
+    args = [path.join(extractPath, "agent"), "/home/agent/agent"];
+
+  cp.execFileSync(cmd, args);
+
+  cp.execSync("chmod +x /home/agent/agent");
+
+  fs.writeFileSync("/home/agent/agent.json", configStr);
+
+  cmd = "sudo";
+  args = [
+    "cp",
+    path.join(__dirname, "agent.service"),
+    "/etc/systemd/system/agent.service",
+  ];
+  cp.execFileSync(cmd, args);
+  cp.execSync("sudo systemctl daemon-reload");
+  cp.execSync("sudo service agent start", { timeout: 15000 });
+  return true;
+}
+
+export async function installMacosAgent(configStr: string): Promise<boolean> {
+  const token = core.getInput("token", { required: true });
+  const auth = `token ${token}`;
+
+  try {
+    // Create working directory
+    core.info("Creating /opt/step-security directory...");
+    cp.execSync("sudo mkdir -p /opt/step-security");
+    chownForFolder(process.env.USER, "/opt/step-security");
+    core.info("✓ Successfully created /opt/step-security directory");
+
+    // Create agent configuration file
+    core.info("Creating agent.json");
+    fs.writeFileSync("/opt/step-security/agent.json", configStr);
+    core.info(
+      "✓ Successfully created agent.json at /opt/step-security/agent.json"
+    );
+
+    // Download installer package
+    const downloadUrl =
+      "https://github.com/step-security/agent-releases/releases/download/v0.0.4-mac/macos-installer-0.0.4.tar.gz";
+    core.info(`Downloading macOS installer.. : ${downloadUrl}`);
+    const downloadPath = await tc.downloadTool(downloadUrl, undefined, auth);
+    core.info(`✓ Successfully downloaded installer to: ${downloadPath}`);
+
+    // Verify SHA256 checksum
+    core.info("Verifying SHA256 checksum of downloaded tar file...");
+    if (!verifyChecksum(downloadPath, false, "", "darwin")) {
+      return false;
+    }
+
+    // Extract installer package
+    core.info("Extracting installer...");
+    const extractPath = await tc.extractTar(downloadPath);
+    core.info(`✓ Successfully extracted installer to: ${extractPath}`);
+
+    // Copy Installer binary to /opt/step-security
+    const installerSourcePath = path.join(extractPath, "Installer");
+    const installerBinaryPath = "/opt/step-security/Installer";
+
+    core.info(
+      `Copying Installer from ${installerSourcePath} to /opt/step-security...`
+    );
+    cp.execFileSync("cp", [installerSourcePath, installerBinaryPath]);
+    core.info("✓ Successfully copied Installer to /opt/step-security");
+
+
+    // Verify installer binary exists
+    if (!fs.existsSync(installerBinaryPath)) {
+      throw new Error(
+        "Installer binary not found at /opt/step-security/Installer"
+      );
+    }
+    core.info("✓ Installer binary verified");
+
+    // Make installer executable
+    core.info("Making installer executable...");
+    cp.execSync(`chmod +x "${installerBinaryPath}"`);
+    core.info("✓ Installer is now executable");
+
+    // Run installer
+    core.info("Running installer...");
+    cp.execSync(
+      `sudo "${installerBinaryPath}" -workdir /opt/step-security >> /opt/step-security/agent.log 2>&1`,
+      {
+        shell: "/bin/bash",
+        timeout: 10000, // 10 second timeout
+      }
+    );
+    core.info("✓ Installer completed successfully");
+
+    core.info("✅ macOS agent installation completed successfully");
+    return true;
+  } catch (error) {
+    core.error(`❌ Failed to install macOS agent: ${error}`);
+    if (error instanceof Error && error.stack) {
+      core.debug(error.stack);
+    }
+    return false;
+  }
+}
+
+export async function installWindowsAgent(configStr: string): Promise<boolean> {
+  const token = core.getInput("token", { required: true });
+  const auth = `token ${token}`;
+
+  const variant = process.arch === "x64" ? "amd64" : "arm64";
+  if (variant === "arm64") {
+    console.log(ARM64_WINDOWS_RUNNER_MESSAGE);
+    return false;
+  }
+
+  const agentDir = "C:\\agent";
+  core.info(`Creating agent directory: ${agentDir}`);
+  if (!fs.existsSync(agentDir)) {
+    fs.mkdirSync(agentDir, { recursive: true });
+  }
+  fs.appendFileSync(process.env.GITHUB_STATE, `agentDir=${agentDir}${EOL}`, {
+    encoding: "utf8",
+  });
+  const agentExePath = path.join(agentDir, "agent.exe");
+
+  const downloadPath = await tc.downloadTool(
+    `https://github.com/step-security/agent-releases/releases/download/v1.0.0-win/harden-runner-agent-windows_1.0.0_windows_amd64.tar.gz`,
+    undefined,
+    auth
+  );
+
+  // validate the checksum
+  if (!verifyChecksum(downloadPath, false, variant, process.platform)) {
+    return false;
+  }
+
+  const extractPath = await tc.extractTar(downloadPath);
+
+  const extractedAgentPath = path.join(extractPath, "agent.exe");
+  fs.copyFileSync(extractedAgentPath, agentExePath);
+  core.info(`Copied agent from ${extractedAgentPath} to ${agentExePath}`);
+
+  const configPath = path.join(agentDir, "config.json");
+  fs.writeFileSync(configPath, configStr);
+  core.info(`Created config file: ${configPath}`);
+
+  core.info("Starting Windows Agent...");
+
+  try {
+    const logPath = path.join(agentDir, "agent.log");
+    const logStream = fs.openSync(logPath, "a");
+    core.info(`Agent logs will be written to: ${logPath}`);
+
+    const agentProcess = cp.spawn(agentExePath, [], {
+      cwd: agentDir,
+      detached: true,
+      stdio: ["ignore", logStream, logStream],
+      windowsHide: false,
+      shell: false,
+    });
+
+    const pidFile = path.join(agentDir, "agent.pid");
+    fs.writeFileSync(pidFile, agentProcess.pid.toString());
+    core.info(`Agent process started with PID: ${agentProcess.pid}`);
+    core.info(`PID saved to: ${pidFile}`);
+
+    agentProcess.unref();
+
+    core.info("Windows Agent process started successfully");
+    return true;
+  } catch (error) {
+    const errorMessage = error instanceof Error ? error.message : String(error);
+    core.setFailed(`Failed to start Windows agent process: ${errorMessage}`);
+    return false;
+  }
+}

src/interfaces.ts

@@ -0,0 +1,32 @@
+export interface Configuration {
+  repo: string;
+  run_id: string;
+  correlation_id: string;
+  working_directory: string;
+  api_url: string;
+  telemetry_url: string;
+  allowed_endpoints: string;
+  egress_policy: string;
+  disable_telemetry: boolean;
+  disable_sudo: boolean;
+  disable_sudo_and_containers: boolean;
+  disable_file_monitoring: boolean;
+  is_github_hosted: boolean;
+  private: string;
+  is_debug: boolean;
+  one_time_key: string;
+  api_key: string;
+  use_policy_store: boolean;
+}
+
+export interface PolicyResponse {
+  owner?: string;
+  policyName?: string;
+  allowed_endpoints?: string[];
+  disable_sudo?: boolean;
+  disable_sudo_and_containers?: boolean;
+  disable_file_monitoring?: boolean;
+  disable_telemetry?: boolean;
+  egress_policy?: string;
+  policy_name?: string;
+}

src/policy-utils.test.ts

@@ -0,0 +1,388 @@
+import nock from "nock";
+import { fetchPolicy, mergeConfigs } from "./policy-utils";
+import { Configuration, PolicyResponse } from "./interfaces";
+import { STEPSECURITY_API_URL } from "./configs";
+
+test("success: fetching policy", async () => {
+  let owner = "h0x0er";
+  let policyName = "policy1";
+  let response = {
+    owner: "h0x0er",
+    policyName: "policy1",
+    allowed_endpoints: ["github.com:443"],
+    egress_policy: "audit",
+    disable_telemetry: false,
+    disable_sudo: false,
+    disable_file_monitoring: false,
+  };
+  const policyScope = nock(`${STEPSECURITY_API_URL}`)
+    .get(`/github/${owner}/actions/policies/${policyName}`)
+    .reply(200, response);
+
+  let idToken = "xyz";
+  let policy = await fetchPolicy(owner, policyName, idToken);
+  console.log(policy);
+  expect(policy).toStrictEqual(response);
+});
+
+test("merge configs", async () => {
+  let localConfig: Configuration = {
+    repo: "test/repo",
+    run_id: "xyx",
+    correlation_id: "aaaaa",
+    working_directory: "/xyz",
+    api_url: "xyz",
+    telemetry_url: "xyz",
+    allowed_endpoints: "",
+    egress_policy: "audit",
+    disable_telemetry: false,
+    disable_sudo: false,
+    disable_sudo_and_containers: false,
+    disable_file_monitoring: false,
+    private: "true",
+    is_github_hosted: true,
+    is_debug: false,
+    one_time_key: "",
+    api_key: "",
+    use_policy_store: false,
+  };
+  let policyResponse: PolicyResponse = {
+    owner: "h0x0er",
+    policyName: "policy1",
+    allowed_endpoints: ["github.com:443", "google.com:443"],
+    egress_policy: "audit",
+    disable_telemetry: false,
+    disable_sudo: false,
+    disable_file_monitoring: false,
+  };
+
+  let expectedConfiguration: Configuration = {
+    repo: "test/repo",
+    run_id: "xyx",
+    correlation_id: "aaaaa",
+    working_directory: "/xyz",
+    api_url: "xyz",
+    telemetry_url: "xyz",
+    allowed_endpoints: "github.com:443 google.com:443",
+    egress_policy: "audit",
+    disable_telemetry: false,
+    disable_sudo: false,
+    disable_sudo_and_containers: false,
+    disable_file_monitoring: false,
+    private: "true",
+    is_github_hosted: true,
+    is_debug: false,
+    one_time_key: "",
+    api_key: "",
+    use_policy_store: false,
+  };
+
+  localConfig = mergeConfigs(localConfig, policyResponse);
+  expect(localConfig).toStrictEqual(expectedConfiguration);
+});
+
+// ==================== additional fetchPolicy tests ====================
+
+test("fetchPolicy throws when idToken is empty", async () => {
+  await expect(fetchPolicy("owner", "policy1", "")).rejects.toThrow(
+    "[PolicyFetch]: id-token in empty"
+  );
+});
+
+test("fetchPolicy retries on failure and succeeds", async () => {
+  const owner = "test-owner";
+  const policyName = "test-policy";
+  const response = {
+    allowed_endpoints: ["example.com:443"],
+    egress_policy: "block",
+  };
+
+  nock(`${STEPSECURITY_API_URL}`)
+    .get(`/github/${owner}/actions/policies/${policyName}`)
+    .replyWithError("connection timeout");
+  nock(`${STEPSECURITY_API_URL}`)
+    .get(`/github/${owner}/actions/policies/${policyName}`)
+    .reply(200, response);
+
+  const policy = await fetchPolicy(owner, policyName, "token123");
+  expect(policy).toStrictEqual(response);
+});
+
+test("fetchPolicy throws after all retries exhausted", async () => {
+  const owner = "test-owner";
+  const policyName = "test-policy";
+
+  nock(`${STEPSECURITY_API_URL}`)
+    .get(`/github/${owner}/actions/policies/${policyName}`)
+    .times(3)
+    .replyWithError("connection timeout");
+
+  await expect(
+    fetchPolicy(owner, policyName, "token123")
+  ).rejects.toThrow("[Policy Fetch]");
+});
+
+test("fetchPolicy preserves statusCode from error", async () => {
+  const owner = "test-owner";
+  const policyName = "test-policy";
+
+  const errorWithStatus = new Error("Not Found");
+  (errorWithStatus as any).statusCode = 404;
+
+  nock(`${STEPSECURITY_API_URL}`)
+    .get(`/github/${owner}/actions/policies/${policyName}`)
+    .times(3)
+    .replyWithError(errorWithStatus);
+
+  try {
+    await fetchPolicy(owner, policyName, "token123");
+    fail("should have thrown");
+  } catch (err) {
+    expect(err.message).toContain("[Policy Fetch]");
+  }
+});
+
+// ==================== fetchPolicyFromStore ====================
+
+import { fetchPolicyFromStore } from "./policy-utils";
+
+const policyStoreQueryString = (workflow: string, runId: string, correlationId: string) =>
+  `workflow=${encodeURIComponent(workflow)}&run_id=${encodeURIComponent(runId)}&correlationId=${encodeURIComponent(correlationId)}`;
+
+test("success: fetches policy from store", async () => {
+  const owner = "test-owner";
+  const repo = "test-repo";
+  const workflow = "ci.yml";
+  const runId = "12345";
+  const correlationId = "abc-def";
+  const response = {
+    allowed_endpoints: ["registry.npmjs.org:443", "github.com:443"],
+    egress_policy: "block",
+    disable_sudo: true,
+    disable_file_monitoring: false,
+  };
+
+  nock(`${STEPSECURITY_API_URL}`)
+    .get(`/github/${owner}/${repo}/actions/policies/workflow-policy?${policyStoreQueryString(workflow, runId, correlationId)}`)
+    .reply(200, response);
+
+  const result = await fetchPolicyFromStore(owner, repo, "my-api-key", workflow, runId, correlationId);
+  expect(result).toStrictEqual(response);
+});
+
+test("fetchPolicyFromStore throws when apiKey is empty", async () => {
+  await expect(
+    fetchPolicyFromStore("owner", "repo", "", "ci.yml", "123", "abc")
+  ).rejects.toThrow("[PolicyStoreFetch]: api-key is empty");
+});
+
+test("fetchPolicyFromStore returns null when policy not found (404)", async () => {
+  const owner = "test-owner";
+  const repo = "test-repo";
+  const workflow = "ci.yml";
+  const runId = "12345";
+  const correlationId = "abc-def";
+
+  nock(`${STEPSECURITY_API_URL}`)
+    .get(`/github/${owner}/${repo}/actions/policies/workflow-policy?${policyStoreQueryString(workflow, runId, correlationId)}`)
+    .reply(404, { message: "not found" });
+
+  const result = await fetchPolicyFromStore(owner, repo, "my-api-key", workflow, runId, correlationId);
+  expect(result).toBeNull();
+});
+
+test("fetchPolicyFromStore returns null when API returns empty policy", async () => {
+  const owner = "test-owner";
+  const repo = "nonexistent-repo";
+  const workflow = "ci.yml";
+  const runId = "12345";
+  const correlationId = "abc-def";
+
+  nock(`${STEPSECURITY_API_URL}`)
+    .get(`/github/${owner}/${repo}/actions/policies/workflow-policy?${policyStoreQueryString(workflow, runId, correlationId)}`)
+    .reply(200, { allowed_endpoints: [], egress_policy: "", policy_name: "" });
+
+  const result = await fetchPolicyFromStore(owner, repo, "my-api-key", workflow, runId, correlationId);
+  expect(result).toBeNull();
+});
+
+test("fetchPolicyFromStore retries on failure and succeeds", async () => {
+  const owner = "test-owner";
+  const repo = "test-repo";
+  const workflow = "ci.yml";
+  const runId = "12345";
+  const correlationId = "abc-def";
+  const response = {
+    allowed_endpoints: ["example.com:443"],
+    egress_policy: "audit",
+  };
+
+  nock(`${STEPSECURITY_API_URL}`)
+    .get(`/github/${owner}/${repo}/actions/policies/workflow-policy?${policyStoreQueryString(workflow, runId, correlationId)}`)
+    .replyWithError("timeout");
+  nock(`${STEPSECURITY_API_URL}`)
+    .get(`/github/${owner}/${repo}/actions/policies/workflow-policy?${policyStoreQueryString(workflow, runId, correlationId)}`)
+    .reply(200, response);
+
+  const result = await fetchPolicyFromStore(owner, repo, "my-api-key", workflow, runId, correlationId);
+  expect(result).toStrictEqual(response);
+});
+
+test("fetchPolicyFromStore throws after all retries exhausted", async () => {
+  const owner = "test-owner";
+  const repo = "test-repo";
+  const workflow = "ci.yml";
+  const runId = "12345";
+  const correlationId = "abc-def";
+
+  nock(`${STEPSECURITY_API_URL}`)
+    .get(`/github/${owner}/${repo}/actions/policies/workflow-policy?${policyStoreQueryString(workflow, runId, correlationId)}`)
+    .times(3)
+    .replyWithError("connection refused");
+
+  await expect(
+    fetchPolicyFromStore(owner, repo, "my-api-key", workflow, runId, correlationId)
+  ).rejects.toThrow("[Policy Store Fetch]");
+});
+
+test("fetchPolicyFromStore preserves statusCode from error", async () => {
+  const owner = "test-owner";
+  const repo = "test-repo";
+  const workflow = "ci.yml";
+  const runId = "12345";
+  const correlationId = "abc-def";
+
+  const errorWithStatus = new Error("Unauthorized");
+  (errorWithStatus as any).statusCode = 401;
+
+  nock(`${STEPSECURITY_API_URL}`)
+    .get(`/github/${owner}/${repo}/actions/policies/workflow-policy?${policyStoreQueryString(workflow, runId, correlationId)}`)
+    .times(3)
+    .replyWithError(errorWithStatus);
+
+  try {
+    await fetchPolicyFromStore(owner, repo, "my-api-key", workflow, runId, correlationId);
+    fail("should have thrown");
+  } catch (err) {
+    expect(err.message).toContain("[Policy Store Fetch]");
+  }
+});
+
+test("fetchPolicyFromStore sends correct authorization header", async () => {
+  const owner = "test-owner";
+  const repo = "test-repo";
+  const apiKey = "secret-key-123";
+  const workflow = "ci.yml";
+  const runId = "12345";
+  const correlationId = "abc-def";
+
+  nock(`${STEPSECURITY_API_URL}`, {
+    reqheaders: {
+      Authorization: `vm-api-key ${apiKey}`,
+      Source: "github-actions",
+    },
+  })
+    .get(`/github/${owner}/${repo}/actions/policies/workflow-policy?${policyStoreQueryString(workflow, runId, correlationId)}`)
+    .reply(200, { allowed_endpoints: [], egress_policy: "audit" });
+
+  const result = await fetchPolicyFromStore(owner, repo, apiKey, workflow, runId, correlationId);
+  expect(result).toStrictEqual({
+    allowed_endpoints: [],
+    egress_policy: "audit",
+  });
+});
+
+// ==================== additional mergeConfigs tests ====================
+
+test("mergeConfigs does not override local allowed_endpoints if not empty", () => {
+  let localConfig: Configuration = {
+    repo: "test/repo",
+    run_id: "xyx",
+    correlation_id: "aaaaa",
+    working_directory: "/xyz",
+    api_url: "xyz",
+    telemetry_url: "xyz",
+    allowed_endpoints: "local.endpoint:443",
+    egress_policy: "audit",
+    disable_telemetry: false,
+    disable_sudo: false,
+    disable_sudo_and_containers: false,
+    disable_file_monitoring: false,
+    private: "true",
+    is_github_hosted: true,
+    is_debug: false,
+    one_time_key: "",
+    api_key: "",
+    use_policy_store: false,
+  };
+  let policyResponse: PolicyResponse = {
+    allowed_endpoints: ["remote.endpoint:443"],
+    egress_policy: "block",
+  };
+
+  localConfig = mergeConfigs(localConfig, policyResponse);
+  expect(localConfig.allowed_endpoints).toBe("local.endpoint:443");
+  expect(localConfig.egress_policy).toBe("block");
+});
+
+test("mergeConfigs overrides disable_sudo_and_containers from remote", () => {
+  let localConfig: Configuration = {
+    repo: "test/repo",
+    run_id: "xyx",
+    correlation_id: "aaaaa",
+    working_directory: "/xyz",
+    api_url: "xyz",
+    telemetry_url: "xyz",
+    allowed_endpoints: "",
+    egress_policy: "audit",
+    disable_telemetry: false,
+    disable_sudo: false,
+    disable_sudo_and_containers: false,
+    disable_file_monitoring: false,
+    private: "true",
+    is_github_hosted: true,
+    is_debug: false,
+    one_time_key: "",
+    api_key: "",
+    use_policy_store: false,
+  };
+  let policyResponse: PolicyResponse = {
+    allowed_endpoints: [],
+    disable_sudo_and_containers: true,
+  };
+
+  localConfig = mergeConfigs(localConfig, policyResponse);
+  expect(localConfig.disable_sudo_and_containers).toBe(true);
+});
+
+test("mergeConfigs does not override fields when remote values are undefined", () => {
+  let localConfig: Configuration = {
+    repo: "test/repo",
+    run_id: "xyx",
+    correlation_id: "aaaaa",
+    working_directory: "/xyz",
+    api_url: "xyz",
+    telemetry_url: "xyz",
+    allowed_endpoints: "",
+    egress_policy: "block",
+    disable_telemetry: false,
+    disable_sudo: true,
+    disable_sudo_and_containers: true,
+    disable_file_monitoring: true,
+    private: "true",
+    is_github_hosted: true,
+    is_debug: false,
+    one_time_key: "",
+    api_key: "",
+    use_policy_store: false,
+  };
+  let policyResponse: PolicyResponse = {
+    allowed_endpoints: [],
+  };
+
+  localConfig = mergeConfigs(localConfig, policyResponse);
+  expect(localConfig.disable_sudo).toBe(true);
+  expect(localConfig.disable_sudo_and_containers).toBe(true);
+  expect(localConfig.disable_file_monitoring).toBe(true);
+  expect(localConfig.egress_policy).toBe("block");
+});

src/policy-utils.ts

@@ -0,0 +1,141 @@
+import { HttpClient } from "@actions/http-client";
+import { PolicyResponse, Configuration } from "./interfaces";
+import { STEPSECURITY_API_URL } from "./configs";
+
+export async function fetchPolicy(
+  owner: string,
+  policyName: string,
+  idToken: string
+): Promise<PolicyResponse> {
+  if (idToken === "") {
+    throw new Error("[PolicyFetch]: id-token in empty");
+  }
+
+  let policyEndpoint = `${STEPSECURITY_API_URL}/github/${owner}/actions/policies/${policyName}`;
+
+  let httpClient = new HttpClient();
+
+  let headers = {};
+  headers["Authorization"] = `Bearer ${idToken}`;
+  headers["Source"] = "github-actions";
+
+  let response = undefined;
+  let err = undefined;
+
+  let retry = 0;
+  while (retry < 3) {
+    try {
+      console.log(`Attempt: ${retry + 1}`);
+      response = await httpClient.getJson<PolicyResponse>(
+        policyEndpoint,
+        headers
+      );
+      break;
+    } catch (e) {
+      err = e;
+    }
+    retry += 1;
+    await sleep(1000);
+  }
+
+  if (response === undefined && err !== undefined) {
+    // Preserve the original error's statusCode if it exists
+    const error = new Error(`[Policy Fetch] ${err}`);
+    if (err.statusCode !== undefined) {
+      (error as any).statusCode = err.statusCode;
+    }
+    throw error;
+  } else {
+    return response.result;
+  }
+}
+
+export async function fetchPolicyFromStore(
+  owner: string,
+  repo: string,
+  apiKey: string,
+  workflow: string,
+  runId: string,
+  correlationId: string
+): Promise<PolicyResponse | null> {
+  if (apiKey === "") {
+    throw new Error("[PolicyStoreFetch]: api-key is empty");
+  }
+
+  let policyEndpoint = `${STEPSECURITY_API_URL}/github/${owner}/${repo}/actions/policies/workflow-policy?workflow=${encodeURIComponent(workflow)}&run_id=${encodeURIComponent(runId)}&correlationId=${encodeURIComponent(correlationId)}`;
+
+  let httpClient = new HttpClient();
+
+  let headers = {};
+  headers["Authorization"] = `vm-api-key ${apiKey}`;
+  headers["Source"] = "github-actions";
+
+  let response = undefined;
+  let err = undefined;
+
+  let retry = 0;
+  while (retry < 3) {
+    try {
+      console.log(`Attempt: ${retry + 1}`);
+      response = await httpClient.getJson<PolicyResponse>(
+        policyEndpoint,
+        headers
+      );
+      break;
+    } catch (e) {
+      err = e;
+    }
+    retry += 1;
+    await sleep(1000);
+  }
+
+  if (response === undefined && err !== undefined) {
+    const error = new Error(`[Policy Store Fetch] ${err}`);
+    if (err.statusCode !== undefined) {
+      (error as any).statusCode = err.statusCode;
+    }
+    throw error;
+  }
+
+  if (response.statusCode === 404) {
+    return null;
+  }
+
+  const result = response.result;
+  if (!result || (!result.egress_policy && (!result.allowed_endpoints || result.allowed_endpoints.length === 0))) {
+    return null;
+  }
+
+  return result;
+}
+
+export function mergeConfigs(
+  localConfig: Configuration,
+  remoteConfig: PolicyResponse
+) {
+  if (localConfig.allowed_endpoints === "") {
+    localConfig.allowed_endpoints = remoteConfig.allowed_endpoints.join(" ");
+  }
+  if (remoteConfig.disable_sudo !== undefined) {
+    localConfig.disable_sudo = remoteConfig.disable_sudo;
+  }
+
+  if (remoteConfig.disable_sudo_and_containers !== undefined) {
+    localConfig.disable_sudo_and_containers = remoteConfig.disable_sudo_and_containers;
+  }
+
+  if (remoteConfig.disable_file_monitoring !== undefined) {
+    localConfig.disable_file_monitoring = remoteConfig.disable_file_monitoring;
+  }
+  if (remoteConfig.egress_policy !== undefined) {
+    localConfig.egress_policy = remoteConfig.egress_policy;
+  }
+
+  return localConfig;
+}
+
+function sleep(ms: number) {
+  return new Promise((resolve) => {
+    setTimeout(resolve, ms);
+  });
+}

src/setup.ts

@@ -4,94 +4,447 @@ import * as fs from "fs";
 import * as httpm from "@actions/http-client";
 import * as path from "path";
 import { v4 as uuidv4 } from "uuid";
-import { printInfo } from "./common";
-import * as tc from "@actions/tool-cache";
+import * as common from "./common";
+import isDocker from "is-docker";
+import { context } from "@actions/github";
+import { EOL } from "os";
+import {
+  ArtifactCacheEntry,
+  cacheKey,
+  cacheFile,
+  CompressionMethod,
+  isValidEvent,
+} from "./cache";
+import { Configuration, PolicyResponse } from "./interfaces";
+import { fetchPolicy, fetchPolicyFromStore, mergeConfigs } from "./policy-utils";
+import * as cache from "@actions/cache";
+import { getCacheEntry } from "@actions/cache/lib/internal/cacheHttpClient";
+import * as cacheTwirpClient from "@actions/cache/lib/internal/shared/cacheTwirpClient";
+import { GetCacheEntryDownloadURLRequest } from "@actions/cache/lib/generated/results/api/v1/cache";
+import { getCacheServiceVersion } from "@actions/cache/lib/internal/config";
+
+import * as utils from "@actions/cache/lib/internal/cacheUtils";
+import { isARCRunner, sendAllowedEndpoints } from "./arc-runner";
+import {
+  STEPSECURITY_API_URL,
+  STEPSECURITY_TELEMETRY_URL,
+  STEPSECURITY_WEB_URL,
+} from "./configs";
+import { isGithubHosted, isTLSEnabled } from "./tls-inspect";
+import {
+  installAgent,
+  installMacosAgent,
+  installWindowsAgent,
+} from "./install-agent";
+
+import { chownForFolder, isAgentInstalled, isPlatformSupported } from "./utils";
+
+interface MonitorResponse {
+  runner_ip_address?: string;
+  one_time_key?: string;
+  monitoring_started?: boolean;
+}
 
 (async () => {
   try {
-    if (process.platform !== "linux") {
-      console.log("Only runs on linux");
+    console.log("[harden-runner] pre-step");
+
+    const customProperties = context?.payload?.repository?.custom_properties || {};
+    if (customProperties["skip-harden-runner"] === "true") {
+      console.log("Skipping harden-runner: custom property 'skip-harden-runner' is set to 'true'");
+      return;
+    }
+
+    if (!isPlatformSupported(process.platform)) {
+      console.log(common.UNSUPPORTED_RUNNER_MESSAGE);
+      return;
+    }
+    if (isGithubHosted() && isDocker()) {
+      console.log(common.CONTAINER_MESSAGE);
       return;
     }
 
     var correlation_id = uuidv4();
-    var env = "agent";
-    var api_url = `https://${env}.api.stepsecurity.io/v1`;
-    var web_url = "https://app.stepsecurity.io";
+    var api_url = STEPSECURITY_API_URL;
+    var web_url = STEPSECURITY_WEB_URL;
 
-    let _http = new httpm.HttpClient();
-    await _http.get(
-      `${api_url}/github/${process.env["GITHUB_REPOSITORY"]}/actions/runs/${process.env["GITHUB_RUN_ID"]}/monitor`
-    );
-
-    const confg = {
+    let confg: Configuration = {
       repo: process.env["GITHUB_REPOSITORY"],
       run_id: process.env["GITHUB_RUN_ID"],
       correlation_id: correlation_id,
       working_directory: process.env["GITHUB_WORKSPACE"],
       api_url: api_url,
+      telemetry_url: STEPSECURITY_TELEMETRY_URL,
       allowed_endpoints: core.getInput("allowed-endpoints"),
+      egress_policy: core.getInput("egress-policy"),
+      disable_telemetry: core.getBooleanInput("disable-telemetry"),
+      disable_sudo: core.getBooleanInput("disable-sudo"),
+      disable_sudo_and_containers: core.getBooleanInput(
+        "disable-sudo-and-containers"
+      ),
+      disable_file_monitoring: core.getBooleanInput("disable-file-monitoring"),
+      private: context?.payload?.repository?.private || false,
+      is_github_hosted: isGithubHosted(),
+      is_debug: core.isDebug(),
+      one_time_key: "",
+      api_key: core.getInput("api-key"),
+      use_policy_store: core.getBooleanInput("use-policy-store"),
     };
 
-    const confgStr = JSON.stringify(confg);
-    cp.execSync("sudo mkdir -p /home/agent");
-    cp.execSync("sudo chown -R $USER /home/agent");
+    if (confg.api_key !== "") {
+      core.setSecret(confg.api_key);
+    }
 
-    const downloadPath: string = await tc.downloadTool(
-      "https://github.com/step-security/agent/releases/download/v0.3.0/agent_0.3.0_linux_amd64.tar.gz"
+    let policyName = core.getInput("policy");
+    if (confg.use_policy_store) {
+      console.log(`Fetching policy from policy store`);
+      if (confg.api_key === "") {
+        core.setFailed("api-key is required when use-policy-store is set to true");
+      } else {
+        try {
+          const repoName = (process.env["GITHUB_REPOSITORY"] || "").split("/")[1] || "";
+          const workflowRef = process.env["GITHUB_WORKFLOW_REF"] || "";
+          const workflow = workflowRef.replace(/.*\.github\/workflows\//, "").replace(/@.*/, "");
+          let result: PolicyResponse | null = await fetchPolicyFromStore(
+            context.repo.owner,
+            repoName,
+            confg.api_key,
+            workflow,
+            confg.run_id,
+            confg.correlation_id
+          );
+          if (result !== null) {
+            core.info(`Policy found: ${result.policy_name || "unnamed"}`);
+            confg = mergeConfigs(confg, result);
+          } else {
+            core.info("No policy found in policy store. Defaulting to audit mode.");
+            confg.egress_policy = "audit";
+          }
+        } catch (err) {
+          core.info(`[!] ${err}`);
+          if (err.statusCode >= 400 && err.statusCode < 500) {
+            core.info("Policy not found in policy store. Defaulting to audit mode.");
+            confg.egress_policy = "audit";
+          } else {
+            core.error(`Unexpected error fetching from policy store: ${err}. Falling back to audit mode.`);
+            confg.egress_policy = "audit";
+          }
+        }
+      }
+    } else if (policyName !== "") {
+      console.log(`Fetching policy from API with name: ${policyName}`);
+      try {
+        let idToken: string = await core.getIDToken();
+        let result: PolicyResponse = await fetchPolicy(
+          context.repo.owner,
+          policyName,
+          idToken
+        );
+        confg = mergeConfigs(confg, result);
+      } catch (err) {
+        core.info(`[!] ${err}`);
+        // Only fail the job if ID token is not available
+        if (err.message && err.message.includes('Unable to get ACTIONS_ID_TOKEN_REQUEST')) {
+          core.setFailed('Policy store requires id-token write permission as it uses OIDC to fetch the policy from StepSecurity API. Please add "id-token: write" to your job permissions.');
+        } else {
+          // Handle different HTTP status codes
+          if (err.statusCode >= 400 && err.statusCode < 500) {
+            core.error('Policy not found');
+          } else {
+            core.error(`Unexpected error occurred: ${err}. Falling back to egress policy audit`);
+            confg.egress_policy = 'audit';
+          }
+        }
+      }
+    }
+    fs.appendFileSync(
+      process.env.GITHUB_STATE,
+      `disableSudo=${confg.disable_sudo}${EOL}`,
+      {
+        encoding: "utf8",
+      }
     );
-    const extractPath = await tc.extractTar(downloadPath);
+    fs.appendFileSync(
+      process.env.GITHUB_STATE,
+      `disableSudoAndContainers=${confg.disable_sudo_and_containers}${EOL}`,
+      {
+        encoding: "utf8",
+      }
+    );
+    core.info(`[!] Current Configuration: \n${JSON.stringify(confg)}\n`);
 
-    console.log(`Step Security Job Correlation ID: ${correlation_id}`);
-    printInfo(web_url);
+    if (confg.egress_policy !== "audit" && confg.egress_policy !== "block") {
+      core.setFailed("egress-policy must be either audit or block");
+    }
 
-    let cmd = "cp",
-      args = [path.join(extractPath, "agent"), "/home/agent/agent"];
-    cp.execFileSync(cmd, args);
-    cp.execSync("chmod +x /home/agent/agent");
+    if (confg.egress_policy === "block" && confg.allowed_endpoints === "") {
+      core.warning(
+        "egress-policy is set to block (default) and allowed-endpoints is empty. No outbound traffic will be allowed for job steps."
+      );
+    }
 
-    fs.writeFileSync("/home/agent/agent.json", confgStr);
+    if (confg.disable_telemetry !== true && confg.disable_telemetry !== false) {
+      core.setFailed("disable-telemetry must be a boolean value");
+    }
 
-    cmd = "sudo";
-    args = [
-      "cp",
-      path.join(__dirname, "agent.service"),
-      "/etc/systemd/system/agent.service",
-    ];
-    cp.execFileSync(cmd, args);
-    cp.execSync("sudo systemctl daemon-reload");
-    cp.execSync("sudo service agent start", { timeout: 15000 });
+    if (isValidEvent() && confg.egress_policy === "block") {
+      try {
+        const cacheResult = await cache.saveCache(
+          [path.join(__dirname, "cache.txt")],
+          cacheKey
+        );
+        console.log(cacheResult);
+      } catch (exception) {
+        console.log(exception);
+      }
 
-    // Check that the file exists locally
-    var statusFile = "/home/agent/agent.status";
-    var logFile = "/home/agent/agent.log";
-    var counter = 0;
-    while (true) {
-      if (!fs.existsSync(statusFile)) {
-        counter++;
-        if (counter > 30) {
-          console.log("timed out");
-          if (fs.existsSync(logFile)) {
-            var content = fs.readFileSync(logFile, "utf-8");
-            console.log(content);
+      const cacheServiceVersion: string = getCacheServiceVersion();
+
+      switch (cacheServiceVersion) {
+        case "v2":
+          core.info(`cache version: v2`);
+          try {
+            const cacheFilePath = path.join(__dirname, "cache.txt");
+            core.info(`cacheFilePath ${cacheFilePath}`);
+
+            const twirpClient = cacheTwirpClient.internalCacheTwirpClient();
+            const compressionMethod = await utils.getCompressionMethod();
+
+            const request: GetCacheEntryDownloadURLRequest = {
+              key: cacheKey,
+              restoreKeys: [],
+              version: utils.getCacheVersion(
+                [cacheFilePath],
+                compressionMethod,
+                false
+              ),
+            };
+
+            const response = await twirpClient.GetCacheEntryDownloadURL(
+              request
+            );
+
+            const url = new URL(response.signedDownloadUrl);
+            core.info(
+              `Adding cacheHost: ${url.hostname}:443 to allowed-endpoints`
+            );
+
+            confg.allowed_endpoints += ` ${url.hostname}:443`;
+          } catch (e) {
+            core.info(`Unable to fetch cacheURL ${e}`);
+            if (confg.egress_policy === "block") {
+              core.info("Switching egress-policy to audit mode");
+              confg.egress_policy = "audit";
+            }
           }
           break;
+
+        case "v1":
+          core.info(`cache version: v1`);
+
+          try {
+            const compressionMethod: CompressionMethod =
+              await utils.getCompressionMethod();
+            const cacheFilePath = path.join(__dirname, "cache.txt");
+            core.info(`cacheFilePath ${cacheFilePath}`);
+
+            const cacheEntry: ArtifactCacheEntry = await getCacheEntry(
+              [cacheKey],
+              [cacheFilePath],
+              {
+                compressionMethod: compressionMethod,
+              }
+            );
+            const url = new URL(cacheEntry.archiveLocation);
+            core.info(
+              `Adding cacheHost: ${url.hostname}:443 to allowed-endpoints`
+            );
+
+            confg.allowed_endpoints += ` ${url.hostname}:443`;
+          } catch (exception) {
+            // some exception has occurred.
+            core.info(`Unable to fetch cacheURL ${exception}`);
+            if (confg.egress_policy === "block") {
+              core.info("Switching egress-policy to audit mode");
+              confg.egress_policy = "audit";
+            }
+          }
+      }
+    }
+
+    if (!confg.disable_telemetry || confg.egress_policy === "audit") {
+      common.printInfo(web_url);
+    }
+
+    if (isARCRunner()) {
+      console.log(`[!] ${common.ARC_RUNNER_MESSAGE}`);
+      if (confg.egress_policy === "block") {
+        sendAllowedEndpoints(confg.allowed_endpoints);
+        await sleep(10000);
+      }
+      return;
+    }
+
+    const runnerName = process.env.RUNNER_NAME || "";
+    core.info(`RUNNER_NAME: ${runnerName}`);
+    if (!isGithubHosted()) {
+      fs.appendFileSync(process.env.GITHUB_STATE, `selfHosted=true${EOL}`, {
+        encoding: "utf8",
+      });
+
+      core.info(common.SELF_HOSTED_RUNNER_MESSAGE);
+
+      if (confg.egress_policy === "block") {
+        sendAllowedEndpoints(confg.allowed_endpoints);
+        await sleep(5000);
+      }
+      return;
+    }
+
+    if (isGithubHosted() && process.env.STEP_SECURITY_HARDEN_RUNNER === "true") {
+      fs.appendFileSync(process.env.GITHUB_STATE, `customVMImage=true${EOL}`, {
+        encoding: "utf8",
+      });
+
+      core.info("This job is running on a custom VM image with Harden Runner installed.");
+
+      if (confg.egress_policy === "block") {
+        sendAllowedEndpoints(confg.allowed_endpoints);
+        await sleep(5000);
+      }
+      return;
+    }
+
+    if (isGithubHosted() && isAgentInstalled(process.platform)) {
+      console.log("Agent already installed, skipping installation");
+      return;
+    }
+
+    let _http = new httpm.HttpClient();
+    let statusCode: number | undefined;
+    _http.requestOptions = { socketTimeout: 3 * 1000 };
+    let addSummary = "false";
+    try {
+      const monitorRequestData = {
+        correlation_id: correlation_id,
+        job: process.env["GITHUB_JOB"],
+      };
+      const resp = await _http.postJson<MonitorResponse>(
+        `${api_url}/github/${process.env["GITHUB_REPOSITORY"]}/actions/runs/${process.env["GITHUB_RUN_ID"]}/monitor`,
+        monitorRequestData
+      );
+
+      const responseData = resp.result;
+      statusCode = resp.statusCode; // adding error code to check whether agent is getting installed or not.
+      fs.appendFileSync(
+        process.env.GITHUB_STATE,
+        `monitorStatusCode=${statusCode}${EOL}`,
+        {
+          encoding: "utf8",
         }
-        await sleep(300);
-      } // The file *does* exist
-      else {
-        // Read the file
-        var content = fs.readFileSync(statusFile, "utf-8");
-        console.log(content);
+      );
+
+      if (statusCode === 200 && responseData) {
+        console.log(`Runner IP Address: ${responseData.runner_ip_address}`);
+        confg.one_time_key = responseData.one_time_key;
+        addSummary = responseData.monitoring_started ? "true" : "false";
+      }
+    } catch (e) {
+      console.log(`error in connecting to ${api_url}: ${e}`);
+    }
+    fs.appendFileSync(
+      process.env.GITHUB_STATE,
+      `addSummary=${addSummary}${EOL}`,
+      {
+        encoding: "utf8",
+      }
+    );
+    fs.appendFileSync(
+      process.env.GITHUB_STATE,
+      `correlation_id=${correlation_id}${EOL}`,
+      {
+        encoding: "utf8",
+      }
+    );
+
+    console.log(`Step Security Job Correlation ID: ${correlation_id}`);
+    if (String(statusCode) === common.STATUS_HARDEN_RUNNER_UNAVAILABLE) {
+      console.log(common.HARDEN_RUNNER_UNAVAILABLE_MESSAGE);
+      return;
+    }
+
+    const { api_key, use_policy_store, ...agentConfig } = confg;
+    const configStr = JSON.stringify(agentConfig);
+
+    // platform specific
+    let statusFile = "";
+    let logFile = "";
+    let agentInstalled = false;
+
+    switch (process.platform) {
+      case "linux":
+        statusFile = "/home/agent/agent.status";
+        logFile = "/home/agent/agent.log";
+
+        cp.execSync("sudo mkdir -p /home/agent");
+        chownForFolder(process.env.USER, "/home/agent");
+
+        let isTLS = await isTLSEnabled(context.repo.owner);
+        agentInstalled = await installAgent(isTLS, configStr);
+
         break;
+      case "win32":
+        core.info("Installing Windows Agent...");
+        agentInstalled = await installWindowsAgent(configStr);
+
+        const agentDir = process.env.STATE_agentDir || "C:\\agent";
+        statusFile = path.join(agentDir, "agent.status");
+        logFile = path.join(agentDir, "agent.log");
+
+        break;
+      case "darwin":
+        const installed = await installMacosAgent(configStr);
+        if (!installed) {
+          core.warning("😭 macos agent installation failed");
+        }
+        return; // early return
+      default:
+        throw new Error(
+          `Setup failed because of unsupported platform: ${process.platform}`
+        );
+    }
+
+    if (agentInstalled) {
+      var counter = 0;
+      while (true) {
+        if (!fs.existsSync(statusFile)) {
+          counter++;
+          if (counter > 30) {
+            console.log("timed out");
+            if (fs.existsSync(logFile)) {
+              var content = fs.readFileSync(logFile, "utf-8");
+              console.log(content);
+            }
+            break;
+          }
+          await sleep(300);
+        } // The file *does* exist
+        else {
+          // Read the file
+          var content = fs.readFileSync(statusFile, "utf-8");
+          console.log(content);
+          break;
+        }
       }
     }
   } catch (error) {
     core.setFailed(error.message);
   }
+  // see https://github.com/ruby/setup-ruby/issues/543
+  process.exit(0);
 })();
 
-function sleep(ms) {
+export function sleep(ms: number) {
   return new Promise((resolve) => {
     setTimeout(resolve, ms);
   });

src/tls-inspect.test.ts

@@ -0,0 +1,29 @@
+import nock from "nock";
+import { STEPSECURITY_API_URL } from "./configs";
+import { isTLSEnabled } from "./tls-inspect";
+
+test("tls-inspect enabled", async () => {
+  let owner = "h0x0er";
+  let expected = true;
+
+  const resp = nock(`${STEPSECURITY_API_URL}`)
+    .get(`/github/${owner}/actions/tls-inspection-status`)
+    .reply(200, "");
+
+  let got = await isTLSEnabled(owner);
+
+  expect(got).toEqual(expected);
+});
+
+test("tls-inspect not enabled", async () => {
+  let owner = "step-security";
+  let expected = false;
+
+  const resp = nock(`${STEPSECURITY_API_URL}`)
+    .get(`/github/${owner}/actions/tls-inspection-status`)
+    .reply(401, "");
+
+  let got = await isTLSEnabled(owner);
+
+  expect(got).toEqual(expected);
+});

src/tls-inspect.ts

@@ -0,0 +1,29 @@
+import { HttpClient } from "@actions/http-client";
+import { STEPSECURITY_API_URL } from "./configs";
+import * as core from "@actions/core";
+
+export async function isTLSEnabled(owner: string): Promise<boolean> {
+  let tlsStatusEndpoint = `${STEPSECURITY_API_URL}/github/${owner}/actions/tls-inspection-status`;
+  let httpClient = new HttpClient();
+  httpClient.requestOptions = { socketTimeout: 3 * 1000 };
+  core.info(`[!] Checking TLS_STATUS: ${owner}`);
+  let isEnabled = false;
+  try {
+    let resp = await httpClient.get(tlsStatusEndpoint);
+    if (resp.message.statusCode === 200) {
+      isEnabled = true;
+      core.info(`[!] TLS_ENABLED: ${owner}`);
+    } else {
+      core.info(`[!] TLS_NOT_ENABLED: ${owner}`);
+    }
+  } catch (e) {
+    core.info(`[!] Unable to check TLS_STATUS`);
+  }
+
+  return isEnabled;
+}
+
+export function isGithubHosted() {
+  const runnerEnvironment = process.env.RUNNER_ENVIRONMENT || "";
+  return runnerEnvironment === "github-hosted";
+}

src/utils.ts

@@ -0,0 +1,46 @@
+import * as cp from "child_process";
+import * as fs from "fs";
+
+export function isPlatformSupported(platform: NodeJS.Platform) {
+  switch (platform) {
+    case "linux":
+    case "win32":
+    case "darwin":
+      return true;
+
+    default:
+      return false;
+  }
+}
+
+export function chownForFolder(newOwner: string, target: string) {
+  let cmd = "sudo";
+  let args = ["chown", "-R", newOwner, target];
+  cp.execFileSync(cmd, args);
+}
+
+export function isAgentInstalled(platform: NodeJS.Platform) {
+  switch (platform) {
+    case "linux":
+      return fs.existsSync("/home/agent/agent.status");
+    case "win32":
+      return fs.existsSync("C:\\agent\\agent.status");
+    case "darwin":
+      return fs.existsSync("/opt/step-security/agent.status");
+    default:
+      return false;
+  }
+}
+
+export function getAnnotationLogs(platform: NodeJS.Platform) {
+  switch (platform) {
+    case "linux":
+      return fs.readFileSync("/home/agent/annotation.log", "utf8");
+    case "win32":
+      return fs.readFileSync("C:\\agent\\annotation.log", "utf8");
+    case "darwin":
+      return fs.readFileSync("/opt/step-security/annotation.log", "utf8");
+    default:
+      throw new Error("platform not supported");
+  }
+}

tsconfig.json

@@ -14,4 +14,4 @@
     "exclude": [
       "src/**/*.test.ts"
     ]
-  }
+  }