mirror of
https://github.com/huggingface/diffusers.git
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256e9fbc0b
A job with no `permissions:` block inherits whatever the repository hands out. Each block added here grants what that job's own steps need and nothing more. Co-authored-by: hf-security-analysis[bot] <265538906+hf-security-analysis[bot]@users.noreply.github.com>
89 lines
3.7 KiB
YAML
89 lines
3.7 KiB
YAML
name: "Bot: Review"
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# Reusable workflow called by diffusers_bot.yml for `/diffusers-bot review`.
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#
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# A thin, VPN-side relay to the Serge GitHub App hosted at
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# https://serge.huggingface.tech/. The App's /webhook endpoint sits behind a VPN
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# that GitHub's own webhook delivery cannot reach, so a runner inside the VPN
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# re-delivers the triggering comment event to the App.
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#
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# The relay reproduces a genuine GitHub App webhook delivery:
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# - body: the original event payload with `installation.id` injected (the App
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# needs it to mint an installation token; Actions payloads omit it) and the
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# `/diffusers-bot review` mention rewritten to the `@askserge` mention the
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# App matches on
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# - X-Hub-Signature-256: HMAC-SHA256 of that exact body using the App's
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# webhook secret (verified at webapp.py:_verify_webhook_signature)
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# - X-GitHub-Event: the original event name (issue_comment / pull_request_review_comment)
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#
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# All reviewing, diff fetching and comment posting happens server-side under the
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# App identity, so this job needs no checkout and no write permissions.
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on:
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workflow_call:
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secrets:
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SERGE_WEBHOOK_SECRET:
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required: true
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SERGE_INSTALLATION_ID:
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required: true
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permissions: {}
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jobs:
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relay:
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permissions: {}
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name: Relay to Serge
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concurrency:
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group: diffusers-bot-review-${{ github.event.issue.number || github.event.pull_request.number }}
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cancel-in-progress: false
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runs-on:
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group: aws-general-8-plus
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steps:
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- name: Relay event to the Serge GitHub App
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env:
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WEBHOOK_URL: https://serge.huggingface.tech/webhook
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# App webhook secret — must match the App's GITHUB_WEBHOOK_SECRET.
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WEBHOOK_SECRET: ${{ secrets.SERGE_WEBHOOK_SECRET }}
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# Installation id of the Serge App on this repo. Not sensitive, but the
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# App requires it in the payload to obtain an installation token.
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INSTALLATION_ID: ${{ secrets.SERGE_INSTALLATION_ID }}
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EVENT_NAME: ${{ github.event_name }}
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DELIVERY_ID: ${{ github.run_id }}-${{ github.run_attempt }}
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run: |
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set -euo pipefail
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if [ -z "${WEBHOOK_SECRET}" ]; then
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echo "::error::SERGE_WEBHOOK_SECRET secret is not set" >&2
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exit 1
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fi
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if [ -z "${INSTALLATION_ID}" ]; then
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echo "::error::SERGE_INSTALLATION_ID secret is not set" >&2
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exit 1
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fi
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# Inject installation.id and translate the mention, compact form.
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# The signed bytes and the POSTed bytes must be byte-identical, so we
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# write the body to a file and reuse it for both the HMAC and the POST.
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jq -c --argjson iid "${INSTALLATION_ID}" \
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'. + {installation: {id: $iid}} | .comment.body |= sub("/diffusers-bot review"; "@askserge")' \
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"${GITHUB_EVENT_PATH}" > payload.json
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SIG="sha256=$(openssl dgst -sha256 -hmac "${WEBHOOK_SECRET}" payload.json | awk '{print $NF}')"
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HTTP_CODE=$(curl --silent --show-error --fail-with-body \
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--output response.txt --write-out '%{http_code}' \
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--connect-timeout 10 --max-time 60 \
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--request POST "${WEBHOOK_URL}" \
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--header "Content-Type: application/json" \
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--header "X-GitHub-Event: ${EVENT_NAME}" \
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--header "X-GitHub-Delivery: ${DELIVERY_ID}" \
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--header "X-Hub-Signature-256: ${SIG}" \
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--data-binary @payload.json) || {
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echo "::error::Failed to deliver event to Serge App (HTTP ${HTTP_CODE:-000})" >&2
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cat response.txt >&2 || true
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exit 1
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}
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echo "Serge App responded with HTTP ${HTTP_CODE}"
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cat response.txt
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