Execute privileged instructions for the Fuzzy CI #108
Workflow file for this run
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| name: Execute privileged instructions for the Fuzzy CI | |
| # The main workflow fuzzy-ci.yml is triggered by PRs. For security reasons, if | |
| # the PR comes from a fork, that workflow cannot execute instructions such as | |
| # comment on PR or delete label on PR: | |
| # https://securitylab.github.com/research/github-actions-preventing-pwn-requests/ | |
| # Instead, fuzzy-ci.yml forwards those instructions to this workflow which | |
| # checks out the target branch rather than the source. | |
| on: | |
| workflow_run: | |
| workflows: ["Fuzzy CI"] | |
| types: | |
| - completed | |
| jobs: | |
| execute-instruction: | |
| runs-on: ubuntu-latest | |
| permissions: | |
| pull-requests: write | |
| steps: | |
| - name: Checkout | |
| uses: actions/checkout@v4 | |
| - name: Download instruction artifact | |
| env: | |
| GH_API_ACTIONS: https://api.github.com/repos/${{ github.repository }}/actions | |
| run: | | |
| all_artifacts=$(curl -sSL "$GH_API_ACTIONS/runs/${{ github.event.workflow_run.id }}/artifacts") | |
| forward_artifact=$(echo $all_artifacts | jq '.artifacts[] | select(.name == "forwarded_instructions")') | |
| id=$(echo $forward_artifact | jq -r '.id') | |
| curl -sSLO -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" "$GH_API_ACTIONS/artifacts/$id/zip" -D headers.txt | |
| - name: Unzip artifact | |
| run: | | |
| unzip -q zip -d forward || (cat zip && cat headers.txt) | |
| - name: Retreive instruction contents | |
| id: instruction | |
| run: | | |
| instruction=$(jq -r '.instruction' forward/instruction.json) | |
| echo "instruction=$instruction" | tee -a $GITHUB_OUTPUT | |
| - name: Delete the label | |
| if: ${{ steps.instruction.outputs.instruction == 'delete_label' }} | |
| run: | | |
| ENDPOINT=$(jq -r '.endpoint' forward/instruction.json) | |
| LABEL_NAME=$(cat .github/fuzzy-ci-helpers/label_name.txt) | |
| curl -sL -w "%{http_code}" -o output.txt -X DELETE -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" "$ENDPOINT/$LABEL_NAME" | |
| - name: Comment on PR | |
| if: ${{ steps.instruction.outputs.instruction == 'comment' }} | |
| run: | | |
| export ARTIFACTS_URL=$(jq -r '.artifacts_url' forward/instruction.json) | |
| export HASH=$(jq -r '.hash' forward/instruction.json) | |
| msg=$(cat .github/fuzzy-ci-helpers/msg.txt | tr '\n' ' ' | tr '|' '\n' | envsubst) | |
| jq -n --arg msg "$msg" '{ body: $msg }' | tee -a body.json | |
| ENDPOINT=$(jq -r '.endpoint' forward/instruction.json) | |
| curl -LsX POST -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" -d @body.json "$ENDPOINT" |