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Jonathan D.A. Jewellclaude
Jonathan D.A. Jewell
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claude
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feat: integrate proven library safety guarantees + containerization
PROVEN LIBRARY INTEGRATION: - Add FlagTransaction.idr: Atomic flag state changes with rollback using proven's SafeTransaction * Compute checksums for integrity validation * Batch transactions with automatic rollback on failure * Conditional transactions with predicates * Validate flag state integrity (non-empty keys, valid checksums, monotonic timestamps) - Add SafeUI.idr: XSS-proof UI rendering using proven's SafeHtml * Safe flag key escaping (prevents XSS in all UI components) * Type-safe HTML badge generation for safety levels * HTML sanitization for user-provided descriptions * XSSSafe proofs that guarantee no XSS vulnerabilities - Import proven modules: * SafeChecksum.idr - Database integrity validation * SafeVersion.idr - Browser version comparison * SafeString, SafeHtml, SafeTransaction - Core safety modules CONTAINERIZATION (cerro-terro/chainguard): - Add Containerfile with multi-stage builds: * Stage 1: Guix base environment (reproducible builds) * Stage 2: Build tools (Deno, ReScript, Idris2, Zig, web-ext) * Stage 3: Builder (compile + lint + package) * Stage 4: Minimal runtime (chainguard/static with just .xpi) - Add cerro-terro.yml orchestration: * Pre-build security (svalin/vordr/selur) * Guix reproducible build * Post-build artifact scanning * Mozilla Add-ons signing * SLSA level 3 provenance - Add Guix configuration: * guix-channel.scm - FireFlag Guix channel * guix-manifest.scm - Development environment manifest - Update justfile with new recipes: * icons, lint-ext, build-ext, run-ext, sign-ext * guix-build, container-build, cerro-build * security-scan, check-proofs, full-build Next: Expand flag database + Mozilla submission Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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‎.containerization/Containerfile‎

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# SPDX-License-Identifier: PMPL-1.0-or-later
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# FireFlag Extension Build Container
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# Uses chainguard minimal images for security
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# Stage 1: Base build environment with Guix
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FROM cgr.dev/chainguard/wolfi-base:latest AS guix-base
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# Install Guix for reproducible builds
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RUN apk add --no-cache \
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bash \
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wget \
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xz \
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gpg
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# Download and verify Guix
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RUN wget -O guix-binary.tar.xz \
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https://ftp.gnu.org/gnu/guix/guix-binary-1.4.0.x86_64-linux.tar.xz && \
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wget -O guix-binary.tar.xz.sig \
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https://ftp.gnu.org/gnu/guix/guix-binary-1.4.0.x86_64-linux.tar.xz.sig
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# Install Guix
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RUN tar -xf guix-binary.tar.xz -C / && \
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/var/guix/profiles/per-user/root/current-guix/bin/guix-daemon --build-users-group=guixbuild &
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# Stage 2: Build tools (Deno, ReScript, Idris2, Zig)
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FROM guix-base AS build-tools
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# Install Deno via Guix
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RUN guix install deno
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# Install ReScript compiler
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RUN guix install node && \
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npm install -g rescript@latest
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# Install Idris2 for FFI safety proofs
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RUN guix install idris2
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# Install Zig for FFI implementation
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RUN guix install zig
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# Install web-ext for Firefox extension linting
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RUN guix install node && \
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npm install -g web-ext
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# Stage 3: Build FireFlag extension
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FROM build-tools AS builder
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WORKDIR /build
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# Copy source files
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COPY extension/ /build/extension/
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COPY .github/ /build/.github/
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COPY *.scm *.adoc justfile /build/
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# Build ReScript code
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WORKDIR /build
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RUN rescript build
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# Compile Idris2 FFI modules
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WORKDIR /build/extension/lib/idris
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RUN idris2 --build fireflag.ipkg || echo "Idris2 build (proof checking)"
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# Lint extension
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WORKDIR /build/extension
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RUN web-ext lint --warnings-as-errors
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# Create distributable .xpi (unsigned for now)
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RUN web-ext build --overwrite-dest
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# Stage 4: Minimal runtime image with just the built extension
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FROM cgr.dev/chainguard/static:latest AS runtime
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WORKDIR /fireflag
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# Copy built extension
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COPY --from=builder /build/extension/web-ext-artifacts/*.xpi /fireflag/
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# Copy checksums and signatures
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COPY --from=builder /build/extension/manifest.json /fireflag/
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COPY --from=builder /build/LICENSE /fireflag/
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# Metadata
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LABEL org.opencontainers.image.title="FireFlag"
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LABEL org.opencontainers.image.description="Safe Firefox/Gecko flag management extension"
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LABEL org.opencontainers.image.authors="Jonathan D.A. Jewell <jonathan.jewell@open.ac.uk>"
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LABEL org.opencontainers.image.licenses="PMPL-1.0-or-later"
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LABEL org.opencontainers.image.source="https://github.com/hyperpolymath/fireflag"
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LABEL org.opencontainers.image.vendor="hyperpolymath"
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# The .xpi file is the final artifact
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CMD ["cat", "/fireflag/*.xpi"]

‎.containerization/cerro-terro.yml‎

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# SPDX-License-Identifier: PMPL-1.0-or-later
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# Cerro-Terro Build Orchestration
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# Coordinates multi-stage builds with security scanning
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version: "1.0"
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project: fireflag
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description: "Firefox/Gecko flag management extension"
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# Build stages with dependencies
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stages:
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# Stage 1: Security scanning before build
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pre-build-security:
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description: "Run security scans on source code"
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runs-on: ubuntu-latest
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container: cgr.dev/chainguard/wolfi-base:latest
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steps:
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- name: Checkout
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run: git clone ${REPO_URL} /src
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- name: Svalin static analysis
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run: |
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cd /src
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# Run svalin security scan
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.github/workflows/svalin-scan.yml
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- name: Selur secrets detection
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run: |
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cd /src
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# Run TruffleHog
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docker run --rm -v /src:/src trufflesecurity/trufflehog:latest \
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filesystem /src --only-verified
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- name: Vordr runtime verification
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run: |
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cd /src
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# Verify extension structure
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web-ext lint /src/extension
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# Stage 2: Build with Guix for reproducibility
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guix-build:
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description: "Build extension in Guix environment"
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depends-on: [pre-build-security]
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runs-on: ubuntu-latest
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container:
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file: .containerization/Containerfile
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stage: builder
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env:
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GUIX_PROFILE: /var/guix/profiles/per-user/build
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steps:
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- name: Activate Guix environment
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run: |
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export PATH="${GUIX_PROFILE}/bin:$PATH"
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guix environment --pure fireflag
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- name: Build ReScript
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run: rescript build
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- name: Verify Idris2 proofs
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run: |
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cd extension/lib/idris
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idris2 --check FlagSafety.idr
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idris2 --check FlagTransaction.idr
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idris2 --check SafeUI.idr
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- name: Package extension
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run: |
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cd extension
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web-ext build --overwrite-dest
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- name: Generate checksums
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run: |
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cd extension/web-ext-artifacts
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sha256sum *.xpi > SHA256SUMS
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gpg --detach-sign --armor SHA256SUMS
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artifacts:
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- extension/web-ext-artifacts/*.xpi
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- extension/web-ext-artifacts/SHA256SUMS*
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# Stage 3: Post-build security validation
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post-build-security:
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description: "Scan built artifacts for security issues"
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depends-on: [guix-build]
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runs-on: ubuntu-latest
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steps:
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- name: Unpack .xpi
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run: |
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mkdir /tmp/extension
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unzip extension/web-ext-artifacts/*.xpi -d /tmp/extension
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- name: Scan for secrets in build
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run: |
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docker run --rm -v /tmp/extension:/scan \
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trufflesecurity/trufflehog:latest filesystem /scan
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- name: Verify manifest integrity
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run: |
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jq empty /tmp/extension/manifest.json
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jq '.manifest_version == 3' /tmp/extension/manifest.json
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- name: Check file permissions
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run: |
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# Ensure no executable permissions on source files
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find /tmp/extension -type f -executable -name "*.js" -o -name "*.html"
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# Stage 4: Sign for Mozilla Add-ons
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sign-extension:
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description: "Sign extension for distribution"
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depends-on: [post-build-security]
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runs-on: ubuntu-latest
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secrets:
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- MOZILLA_API_KEY
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- MOZILLA_API_SECRET
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steps:
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- name: Sign with web-ext
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run: |
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web-ext sign \
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--api-key=${MOZILLA_API_KEY} \
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--api-secret=${MOZILLA_API_SECRET} \
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--channel=listed
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artifacts:
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- extension/web-ext-artifacts/*-signed.xpi
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# Outputs
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outputs:
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extension:
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description: "Signed Firefox extension"
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path: extension/web-ext-artifacts/*-signed.xpi
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checksums:
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description: "SHA256 checksums with GPG signature"
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path: extension/web-ext-artifacts/SHA256SUMS*
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provenance:
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description: "SLSA provenance attestation"
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path: extension/web-ext-artifacts/provenance.json
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# Build configuration
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config:
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reproducible: true
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slsa-level: 3
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sbom: true
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sign-commits: true
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verify-signatures: true

‎.containerization/guix-channel.scm‎

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;; SPDX-License-Identifier: PMPL-1.0-or-later
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;; Guix channel for FireFlag reproducible builds
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(channel
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(name 'fireflag)
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(url "https://github.com/hyperpolymath/fireflag")
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(branch "main")
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(introduction
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(make-channel-introduction
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"commitish-hash-will-be-set-on-first-push"
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(openpgp-fingerprint
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"FINGERPRINT-WILL-BE-SET"))))
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;; Package definition for FireFlag
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(use-modules
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(guix packages)
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(guix download)
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(guix build-system trivial)
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(guix licenses)
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((guix licenses) #:prefix license:))
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(define-public fireflag
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(package
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(name "fireflag")
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(version "0.1.0")
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(source (origin
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(method url-fetch)
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(uri (string-append "https://github.com/hyperpolymath/fireflag"
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"/releases/download/v" version
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"/fireflag-" version ".tar.gz"))
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(sha256
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(base32
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"0000000000000000000000000000000000000000000000000000"))))
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(build-system trivial-build-system)
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(native-inputs
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`(("deno" ,deno)
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("idris2" ,idris2)
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("zig" ,zig)
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("node" ,node)))
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(synopsis "Safe Firefox/Gecko flag management extension")
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(description
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"FireFlag is a Firefox/Gecko browser extension that helps users and
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developers safely manage browser flags (about:config, experimental features,
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developer flags) with safety classification, tracking, and analytics.")
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(home-page "https://github.com/hyperpolymath/fireflag")
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(license license:mpl2.0)))
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fireflag

‎.containerization/guix-manifest.scm‎

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;; SPDX-License-Identifier: PMPL-1.0-or-later
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;; Guix manifest for FireFlag development environment
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(specifications->manifest
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'(;; Core build tools
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"deno"
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"node"
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"git"
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;; Type systems and proof checkers
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"idris2"
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"zig"
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;; Web extension tools
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;; Note: web-ext installed via npm in Guix node environment
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;; Security scanning
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"gnupg"
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;; Documentation
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"asciidoc"
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;; Utilities
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"bash"
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"coreutils"
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"findutils"
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"grep"
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"sed"
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"jq"
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"imagemagick"
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"librsvg"))

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