variables:
  # Locale settings do not affect the build, but might affect tests.
  LC_ALL: C

  # Fuzzing
  CFL_ARTIFACTS_DIR: '/tmp/cfl-artifacts'
  CFL_CACHE_DIR: '/ccache/cfl-cache'
  CFL_IMAGE: 'gcr.io/oss-fuzz-base/clusterfuzzlite-run-fuzzers'
  CFL_PLATFORM: gitlab
  FUZZ_SECONDS: 600 # 10 min (ClusterFuzzLite defaults)
  FUZZING_ARGS: '-rss_limit_mb=8192'
  LD_LIBRARY_PATH: "/opt/kea/lib:/usr/lib/x86_64-linux-gnu:/lib/x86_64-linux-gnu:/builds/isc-projects/kea"
  PARALLEL_FUZZING: true
  CCACHE_BASEDIR: "${CI_PROJECT_DIR}"
  CCACHE_DIR: "${CI_PROJECT_DIR}/ccache"

  # SAST
  SECURE_ANALYZERS_PREFIX: "registry.gitlab.com/gitlab-org/security-products/analyzers"
  # Leave only bandit, flawfinder, semgrep.
  SAST_EXCLUDED_ANALYZERS: "eslint, spotbugs"

default:
  image: 'registry.gitlab.isc.org/isc-projects/kea:latest'
  tags:
    - linux
    - aws
    - runner-manager
    - amd64

stages:
  - test
  - fuzz

.base_rules_for_test_jobs: &rules_for_test_stage
  rules:
    # Do not run the test stage on pipeline schedule trigger.
    - if: $CI_PIPELINE_SOURCE == 'schedule'
      when: never
    # Prevent duplicate pipelines.
    - if: $CI_OPEN_MERGE_REQUESTS && $CI_COMMIT_BRANCH == null
      when: never
    # On any other event, including push to MR branch and push to master.
    - when: always

are-database-scripts-in-sync:
  stage: test
  <<: *rules_for_test_stage
  script:
    - ./src/share/database/scripts/utils/are-scripts-in-sync.py

check-for-json-errors-in-doc:
  stage: test
  <<: *rules_for_test_stage
  script:
    - ./tools/check-for-json-errors-in-doc.sh

danger:
  stage: test
  <<: *rules_for_test_stage
  before_script:
    - export CI_MERGE_REQUEST_ID=$(git ls-remote -q origin merge-requests\*\head | grep $CI_COMMIT_SHA | sed 's/.*refs\/merge-requests\/\([0-9]*\)\/head/\1/g')
    - export CI_PROJECT_PATH=$CI_PROJECT_ID #some version of gitlab has problems with searching by project path
    - export DANGER_GITLAB_HOST=gitlab.isc.org
    - export DANGER_GITLAB_API_BASE_URL=https://gitlab.isc.org/api/v4
  script:
    - danger --fail-on-errors=true --new-comment

duplicate-includes:
  stage: test
  <<: *rules_for_test_stage
  script:
    - ./tools/check-for-duplicate-includes.sh

duplicate-log-messages:
  stage: test
  <<: *rules_for_test_stage
  script:
    - ./tools/check-messages.py

uninstalled-headers:
  stage: test
  <<: *rules_for_test_stage
  script:
    - ./tools/find-uninstalled-headers.py

missing-api-commands:
  stage: test
  <<: *rules_for_test_stage
  script:
    - ./tools/check-for-missing-api-commands.sh

missing-config-h-include:
  stage: test
  <<: *rules_for_test_stage
  script:
    - FILES=$(./tools/add-config-h.sh -n)
    - printf '%s\n' "${FILES}"
    - test -z "${FILES}"

missing-git-attribute:
  stage: test
  <<: *rules_for_test_stage
  script:
    - git_diff=$(git diff)
    - if test -n "${git_diff}"; then printf '%s\n\ngit diff should be empty here under all circumstances. CI broken?\n' "${git_diff}"; exit 1; fi
    - ./tools/print-generated-files.sh -a
    - git_diff=$(git diff)
    - if test -n "${git_diff}"; then printf '%s\n\n.gitattributes are missing a generated file. Please run "./tools/print-generated-files.sh -a" and commit the resulting change to fix them.\n' "${git_diff}"; exit 1; fi

shellcheck:
  stage: test
  <<: *rules_for_test_stage
  script:
    - ./tools/shellcheck-all.sh

.base_get_list_of_modified_files: &get_modified_files
  - MODIFIED_FILES=$(git diff --name-only $(git merge-base origin/master HEAD))
  - echo "${MODIFIED_FILES}"

.base_get_list_of_python_scripts: &get_python_scripts
  - PYTHON_SCRIPTS=$(find ${INPUT-.} -type f -not -path './.git/*' -and \( -name '*.py' -or -name '*.py.in' \) | sort)
  - echo "${PYTHON_SCRIPTS}"
  - if test -z "${PYTHON_SCRIPTS}"; then echo "No python scripts to check. Exiting early."; exit 0; fi

bandit:
  stage: test
  <<: *rules_for_test_stage
  script:
    - bandit -r ./src -x ./.git

pycodestyle:
  stage: test
  <<: *rules_for_test_stage
  script:
    # - *get_modified_files
    # - INPUT="${MODIFIED_FILES}"
    - *get_python_scripts
    - pycodestyle --config=.gitlab/ci/pycodestyle.cfg ${PYTHON_SCRIPTS}

pylint:
  stage: test
  <<: *rules_for_test_stage
  script:
    # - *get_modified_files
    # - INPUT="${MODIFIED_FILES}"
    - *get_python_scripts
    - pylint --jobs "$(nproc || gnproc || echo 1)" --rcfile ./.gitlab/ci/pylint.rc ${PYTHON_SCRIPTS}
    # If we reached this point, it means pylint passed. Run again with all warnings enabled, but ignore the return code to show a list of improvements that the developer could do, even when CI is passing.
    - pylint --jobs "$(nproc || gnproc || echo 1)" --rcfile ./.gitlab/ci/pylint.rc --enable all ${PYTHON_SCRIPTS} || true


############################## Fuzzing ##############################

# Fuzz code changes. Fuzzes all merge requests.
fuzz:
  image:
    name: "${CFL_IMAGE}"
    entrypoint: ['']
  stage: fuzz
  tags:
    - docker-fuzz
  needs: []
  parallel:
    matrix:
      - SANITIZER: [address, undefined]
  rules:
    # Prevent duplicate pipelines.
    - if: $CI_OPEN_MERGE_REQUESTS && $CI_COMMIT_BRANCH == null
      when: never
    # On merge request.
    - if: $CI_COMMIT_BRANCH && $CI_OPEN_MERGE_REQUESTS
      variables:
        MODE: "code-change"
      when: manual
      allow_failure: true
    # Run on any other event, including push to MR branch and push to master.
    - when: always
  before_script:
    # Get GitLab's container id.
    - export CFL_CONTAINER_ID=`docker ps -q -f "label=com.gitlab.gitlab-runner.job.id=$CI_JOB_ID" -f "label=com.gitlab.gitlab-runner.type=build"`
  script:
    # local cfl-cache to mounted volume
    - if ! test -L cfl-cache; then ln -s /cfl-cache cfl-cache; fi
    # Will build and run the fuzzers.
    - python3 "/opt/oss-fuzz/infra/cifuzz/cifuzz_combined_entrypoint.py"
  artifacts:
    # Upload artifacts when a crash makes the job fail.
    when: always
    expire_in: 30 days
    paths:
      - "${CFL_ARTIFACTS_DIR}"

# Batch fuzzing enables continuous, regular fuzzing on your latest HEAD
# and allows a corpus of inputs to build up over time, which greatly improves
# the effectiveness of fuzzing. Batch fuzzing should be run on a schedule.
fuzz-batch:
  image:
    name: "${CFL_IMAGE}"
    entrypoint: ['']
  stage: fuzz
  needs: []
  tags:
    - docker-fuzz
  variables:
    FUZZ_SECONDS: 86400 # 24 hours
  rules:
    - if: $MODE == "batch"
  before_script:
    - export CFL_CONTAINER_ID=`docker ps -q -f "label=com.gitlab.gitlab-runner.job.id=$CI_JOB_ID" -f "label=com.gitlab.gitlab-runner.type=build"`
  script:
    - python3 "/opt/oss-fuzz/infra/cifuzz/cifuzz_combined_entrypoint.py"
  artifacts:
    when: always
    expire_in: 30 days
    paths:
      - "${CFL_ARTIFACTS_DIR}"

# Corpus pruning is a helper function that minimizes the corpuses by
# removing corpus files (testcases) that do not increase the fuzzer’s
# code coverage.
fuzz-prune:
  image:
    name: "${CFL_IMAGE}"
    entrypoint: ['']
  stage: fuzz
  needs: []
  tags:
    - docker-fuzz
  rules:
    - if: $MODE == "prune"
  before_script:
    - export CFL_CONTAINER_ID=`docker ps -q -f "label=com.gitlab.gitlab-runner.job.id=$CI_JOB_ID" -f "label=com.gitlab.gitlab-runner.type=build"`
  script:
    - python3 "/opt/oss-fuzz/infra/cifuzz/cifuzz_combined_entrypoint.py"
  artifacts:
    when: always
    expire_in: 30 days
    paths:
      - "${CFL_ARTIFACTS_DIR}"

# Continuous builds are used when a crash is found during MR fuzzing to determine
# whether the crash was newly introduced. If the crash was not newly introduced,
# MR fuzzing will not report it. This means that there will be fewer unrelated
# failures when running code change fuzzing.
fuzz-build:
  image:
    name: "${CFL_IMAGE}"
    entrypoint: ['']
  stage: fuzz
  needs: []
  tags:
    - docker-fuzz
  rules:
    # Use $CI_DEFAULT_BRANCH or $CFL_BRANCH.
    - if: $CI_COMMIT_BRANCH == $CFL_BRANCH && $CI_PIPELINE_SOURCE == "push"
      variables:
        MODE: "code-change"
        UPLOAD_BUILD: "true"
  before_script:
    - export CFL_CONTAINER_ID=`docker ps -q -f "label=com.gitlab.gitlab-runner.job.id=$CI_JOB_ID" -f "label=com.gitlab.gitlab-runner.type=build"`
  script:
    - python3 "/opt/oss-fuzz/infra/cifuzz/cifuzz_combined_entrypoint.py"
  artifacts:
    when: always
    expire_in: 30 days
    paths:
      - "${CFL_ARTIFACTS_DIR}"

# scheduled job - generates periodic coverage reports
fuzz-coverage:
  image:
    name: "${CFL_IMAGE}"
    entrypoint: ['']
  stage: fuzz
  needs: []
  tags:
    - docker-fuzz
  variables:
    SANITIZER: "coverage"
  rules:
    - if: $MODE == "coverage"
  before_script:
    - export CFL_CONTAINER_ID=`cut -c9- < /proc/1/cpuset`
  script:
    - python3 "/opt/oss-fuzz/infra/cifuzz/cifuzz_combined_entrypoint.py"
  after_script:
    - shasum /opt/kea/sbin/*
    - shasum /tmp/not-out/*/*
    - shasum ${OUT}/*/*
  artifacts:
    when: always
    expire_in: 30 days
    paths:
      - "${CFL_ARTIFACTS_DIR}"


############################### SAST ################################
# Read more about this feature here: https://docs.gitlab.com/ee/user/application_security/sast/
#
# Configure SAST with CI/CD variables (https://docs.gitlab.com/ee/ci/variables/index.html).
# List of available variables: https://docs.gitlab.com/ee/user/application_security/sast/index.html#available-variables

include:
  - template: Security/SAST.gitlab-ci.yml

.sast-analyzer:
  extends: sast
  stage: test
  allow_failure: true
  script:
    - /analyzer run

flawfinder-sast:
  extends: .sast-analyzer
  image:
    name: "$SAST_ANALYZER_IMAGE"
  variables:
    SAST_ANALYZER_IMAGE_TAG: latest
    SAST_ANALYZER_IMAGE: "$SECURE_ANALYZERS_PREFIX/flawfinder:$SAST_ANALYZER_IMAGE_TAG"
  rules:
    - if: $SAST_DISABLED
      when: never
    - if: $CI_PIPELINE_SOURCE == 'schedule'
      when: never
    - if: $SAST_EXCLUDED_ANALYZERS =~ /flawfinder/
      when: never
    # Prevent duplicate pipelines.
    - if: $CI_OPEN_MERGE_REQUESTS && $CI_COMMIT_BRANCH == null
      when: never
    # Run on any other event, including push to master.
    - when: always

semgrep-sast:
  extends: .sast-analyzer
  rules:
    - if: $SAST_DISABLED
      when: never
    - if: $CI_PIPELINE_SOURCE == 'schedule'
      when: never
    # Prevent duplicate pipelines.
    - if: $CI_OPEN_MERGE_REQUESTS && $CI_COMMIT_BRANCH == null
      when: never
    # Run on any other event, including push to MR branch and push to master.
    - when: always