Harden CI: Artifactory OIDC, fork-aware workflows, pub.dev Trusted Publishing

.github/actions/artifactory-oidc/action.yml

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+name: "Artifactory OIDC Auth"
+description: "Exchange GitHub OIDC token for Artifactory access token and configure pub"
+
+inputs:
+  artifactory-url:
+    description: "JFrog platform base URL. Falls back to ARTIFACTORY_URL env var."
+    required: false
+    default: ""
+  oidc-provider-name:
+    description: "OIDC provider name configured in Artifactory"
+    required: false
+    default: "github-actions-segmentio"
+  pub-repo:
+    description: "Artifactory virtual pub repository name"
+    required: false
+    default: "virtual-pub-thirdparty"
+
+runs:
+  using: "composite"
+  steps:
+    - name: Exchange GitHub OIDC token for Artifactory token
+      shell: bash
+      env:
+        INPUT_ARTIFACTORY_URL: ${{ inputs.artifactory-url }}
+        OIDC_PROVIDER_NAME: ${{ inputs.oidc-provider-name }}
+        PUB_REPO: ${{ inputs.pub-repo }}
+      run: |
+        set -euo pipefail
+        ARTIFACTORY_URL="${INPUT_ARTIFACTORY_URL:-${ARTIFACTORY_URL:-}}"
+        if [ -z "${ARTIFACTORY_URL}" ]; then
+          echo "::error::ARTIFACTORY_URL is not set (pass as input or set as env var)"; exit 1
+        fi
+
+        OIDC_JWT=$(curl -sS \
+          "${ACTIONS_ID_TOKEN_REQUEST_URL}&audience=${ARTIFACTORY_URL}" \
+          -H "Authorization: Bearer ${ACTIONS_ID_TOKEN_REQUEST_TOKEN}" | jq -r '.value')
+
+        if [ -z "$OIDC_JWT" ] || [ "$OIDC_JWT" = "null" ]; then
+          echo "::error::Failed to obtain GitHub OIDC token"; exit 1
+        fi
+
+        decode_seg() { local s="${1}"; local m=$(( ${#s} % 4 )); [ $m -ne 0 ] && s="${s}$(printf '=%.0s' $(seq 1 $((4-m))))"; echo "$s" | tr '_-' '/+' | base64 -d 2>/dev/null; }
+        PAYLOAD=$(decode_seg "$(echo "$OIDC_JWT" | cut -d. -f2)")
+        echo "OIDC token claims:"
+        echo "  sub = $(echo "$PAYLOAD" | jq -r '.sub')"
+        echo "  aud = $(echo "$PAYLOAD" | jq -r '.aud')"
+        echo "  iss = $(echo "$PAYLOAD" | jq -r '.iss')"
+
+        RESP=$(curl -sS "${ARTIFACTORY_URL}/access/api/v1/oidc/token" \
+          -H 'Content-Type: application/json' \
+          -d "{\"grant_type\":\"urn:ietf:params:oauth:grant-type:token-exchange\",
+               \"subject_token_type\":\"urn:ietf:params:oauth:token-type:id_token\",
+               \"subject_token\":\"${OIDC_JWT}\",
+               \"provider_name\":\"${OIDC_PROVIDER_NAME}\"}")
+
+        ART_TOKEN=$(echo "$RESP" | jq -r '.access_token // empty')
+
+        if [ -z "$ART_TOKEN" ]; then
+          echo "::error::OIDC token exchange failed."
+          echo "$RESP" | jq 'walk(if type == "object" then with_entries(if (.key | test("token"; "i")) then .value = "<redacted>" else . end) else . end)' 2>/dev/null \
+            || echo "::error::(response withheld — not valid JSON)"
+          exit 1
+        fi
+        echo "::add-mask::$ART_TOKEN"
+
+        HOST=$(echo "${ARTIFACTORY_URL}" | sed -E 's#^https?://##')
+        PUB_HOSTED_URL="https://:${ART_TOKEN}@${HOST}/artifactory/api/pub/${PUB_REPO}"
+
+        echo "::add-mask::${PUB_HOSTED_URL}"
+        echo "PUB_HOSTED_URL=${PUB_HOSTED_URL}" >> "$GITHUB_ENV"
+        echo "Configured pub to resolve through Artifactory (${PUB_REPO})"

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  workflow_dispatch:
+
+permissions:
+  id-token: write
+  contents: read
+
+env:
+  ARTIFACTORY_URL: ${{ vars.ARTIFACTORY_URL }}
+
+jobs:
+  test:
+    name: Test - ${{ matrix.package }}
+    runs-on: ${{ github.event.pull_request.head.repo.fork && 'ubuntu-latest' || 'ubuntu-x64' }}
+    strategy:
+      fail-fast: false
+      matrix:
+        package:
+          - core
+          - plugins/plugin_adjust
+          - plugins/plugin_advertising_id
+          - plugins/plugin_amplitude
+          - plugins/plugin_appsflyer
+          - plugins/plugin_firebase
+          - plugins/plugin_idfa
+
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+
+      - uses: actions/setup-java@c5195efecf7bdfc987ee8bae7a71cb8b11521c00 # v4
+        with:
+          distribution: 'zulu'
+          java-version: '17'
+
+      - uses: subosito/flutter-action@1a449444c387b1966244ae4d4f8c696479add0b2 # v2
+        with:
+          channel: stable
+          flutter-version: 3.29.2
+
+      - name: Authenticate with Artifactory
+        if: ${{ !github.event.pull_request.head.repo.fork }}
+        uses: ./.github/actions/artifactory-oidc
+
+      - name: Get dependencies
+        run: flutter pub get
+        working-directory: packages/${{ matrix.package }}
+
+      - name: Analyze
+        run: flutter analyze
+        working-directory: packages/${{ matrix.package }}
+
+      - name: Run tests
+        run: flutter test --coverage
+        working-directory: packages/${{ matrix.package }}
+
+  all-checks:
+    name: All Checks Passed
+    needs: [test]
+    runs-on: ubuntu-latest
+    if: always()
+    steps:
+      - name: Check all job statuses
+        run: |
+          if [ "${{ needs.test.result }}" != "success" ]; then
+            echo "One or more checks failed"
+            exit 1
+          fi

.github/workflows/publish.yml

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+name: Publish to pub.dev
+
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+    inputs:
+      package:
+        description: "Package to publish (e.g. core, plugins/plugin_firebase)"
+        required: true
+        default: "core"
+
+permissions:
+  id-token: write
+  contents: read
+
+env:
+  ARTIFACTORY_URL: ${{ vars.ARTIFACTORY_URL }}
+
+jobs:
+  test:
+    name: Pre-publish tests
+    runs-on: ubuntu-x64
+
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+
+      - uses: actions/setup-java@c5195efecf7bdfc987ee8bae7a71cb8b11521c00 # v4
+        with:
+          distribution: 'zulu'
+          java-version: '17'
+
+      - uses: subosito/flutter-action@1a449444c387b1966244ae4d4f8c696479add0b2 # v2
+        with:
+          channel: stable
+          flutter-version: 3.29.2
+
+      - name: Authenticate with Artifactory
+        uses: ./.github/actions/artifactory-oidc
+
+      - name: Get dependencies
+        run: flutter pub get
+        working-directory: packages/${{ github.event.inputs.package || 'core' }}
+
+      - name: Run tests
+        run: flutter test
+        working-directory: packages/${{ github.event.inputs.package || 'core' }}
+
+  publish:
+    name: Publish to pub.dev
+    runs-on: ubuntu-x64
+    needs: [test]
+    environment: production
+
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+
+      - uses: subosito/flutter-action@1a449444c387b1966244ae4d4f8c696479add0b2 # v2
+        with:
+          channel: stable
+          flutter-version: 3.29.2
+
+      - name: Publish to pub.dev (Trusted Publishing)
+        run: dart pub publish --force
+        working-directory: packages/${{ github.event.inputs.package || 'core' }}