name: OpenSSL ECH Interop Test

# START OF COMMON SECTION
on:
  push:
    branches: [ 'master', 'main', 'release/**' ]
  pull_request:
    branches: [ '*' ]

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
# END OF COMMON SECTION

jobs:
  build_wolfssl:
    name: Build wolfSSL
    if: github.repository_owner == 'wolfssl'
    runs-on: ubuntu-24.04
    timeout-minutes: 4
    steps:
      - name: Build wolfSSL
        uses: wolfSSL/actions-build-autotools-project@v1
        with:
          path: wolfssl
          configure: >-
            --enable-ech --enable-sha512 --enable-aes --enable-mlkem
            CFLAGS='-DUSE_FLAT_TEST_H -DWOLFSSL_TEST_ECH'
          check: true
          install: true

      - name: tar build-dir
        run: |
          # need server.h and client.h which are not installed normally
          cp "$GITHUB_WORKSPACE/wolfssl/examples/server/server.h" \
            build-dir/share/doc/wolfssl/example/server.h
          cp "$GITHUB_WORKSPACE/wolfssl/examples/client/client.h" \
            build-dir/share/doc/wolfssl/example/client.h

          # need certs so 'wolfSSL error: wolf root not found' does not show up
          cp -r "$GITHUB_WORKSPACE/wolfssl/certs" build-dir/certs

          # need the ech script to run tests
          cp "$GITHUB_WORKSPACE/wolfssl/.github/scripts/openssl-ech.sh" \
            build-dir/openssl-ech.sh

          tar -zcf build-dir.tgz build-dir

      - name: Upload built wolfSSL
        uses: actions/upload-artifact@v4
        with:
          name: wolf-install-openssl-ech
          path: build-dir.tgz
          retention-days: 5

  build_openssl_ech:
    name: Build OpenSSL (feature/ech)
    if: github.repository_owner == 'wolfssl'
    runs-on: ubuntu-24.04
    timeout-minutes: 10
    steps:
      - name: Checkout OpenSSL feature/ech branch
        uses: actions/checkout@v4
        with:
          repository: openssl/openssl
          ref: feature/ech
          path: openssl

      - name: Build OpenSSL
        working-directory: openssl
        run: |
          ./Configure --prefix=$GITHUB_WORKSPACE/openssl-install \
            --openssldir=$GITHUB_WORKSPACE/openssl-install/ssl \
            enable-ech no-docs
          make -j$(nproc)
          make install_sw

      - name: tar openssl-install
        run: tar -zcf openssl-install.tgz openssl-install

      - name: Upload built OpenSSL
        uses: actions/upload-artifact@v4
        with:
          name: openssl-ech-install
          path: openssl-install.tgz
          retention-days: 5

  ech_interop_test:
    name: ECH Interop Test
    if: github.repository_owner == 'wolfssl'
    needs: [build_wolfssl, build_openssl_ech]
    runs-on: ubuntu-24.04
    timeout-minutes: 10
    steps:
      - name: Download wolfSSL build
        uses: actions/download-artifact@v4
        with:
          name: wolf-install-openssl-ech

      - name: Download OpenSSL build
        uses: actions/download-artifact@v4
        with:
          name: openssl-ech-install

      - name: Extract builds
        run: |
          tar -xzf build-dir.tgz
          tar -xzf openssl-install.tgz

      - name: Build wolfssl client and server examples
        run: |
          export WOLFSSL_INSTALL_DIR="$GITHUB_WORKSPACE/build-dir"
          export WOLFSSL_BIN_DIR="$WOLFSSL_INSTALL_DIR/bin"
          export CFLAGS="-Wall -I$WOLFSSL_INSTALL_DIR/include"
          export LIBS="-L$WOLFSSL_INSTALL_DIR/lib -lm -lwolfssl"
          export LD_LIBRARY_PATH="$WOLFSSL_INSTALL_DIR/lib/:$LD_LIBRARY_PATH"

          gcc -o "$WOLFSSL_BIN_DIR/client" \
                "$WOLFSSL_INSTALL_DIR/share/doc/wolfssl/example/client.c" \
                $CFLAGS $LIBS -I"$WOLFSSL_INSTALL_DIR/share/doc/wolfssl/example"

          gcc -o "$WOLFSSL_BIN_DIR/server" \
                "$WOLFSSL_INSTALL_DIR/share/doc/wolfssl/example/server.c" \
                $CFLAGS $LIBS -I"$WOLFSSL_INSTALL_DIR/share/doc/wolfssl/example"

      - name: Interop test
        run: |
          set -e

          export LD_LIBRARY_PATH="$GITHUB_WORKSPACE/openssl-install/lib64:$GITHUB_WORKSPACE/openssl-install/lib:$GITHUB_WORKSPACE/build-dir/lib:$LD_LIBRARY_PATH"

          export OPENSSL="$GITHUB_WORKSPACE/openssl-install/bin/openssl"
          export WOLFSSL_CLIENT="$GITHUB_WORKSPACE/build-dir/bin/client"
          export WOLFSSL_SERVER="$GITHUB_WORKSPACE/build-dir/bin/server"
          export CERT_DIR="$GITHUB_WORKSPACE/build-dir/certs"
          LOG_FILE="$GITHUB_WORKSPACE/log_file.log"

          # need to cd into build-dir so the certs/ dir is available for server
          cd build-dir

          $OPENSSL version | tee "$LOG_FILE"

          # default suite (DHKEM_X25519_HKDF_SHA256, HKDF_SHA256, HPKE_AES_128_GCM)
          echo -e "\nTesting default suite with OpenSSL server and wolfSSL client\n" &>> "$LOG_FILE"
          bash ./openssl-ech.sh server &>> "$LOG_FILE"

          echo -e "\nTesting default suite with OpenSSL client and wolfSSL server\n" &>> "$LOG_FILE"
          bash ./openssl-ech.sh client &>> "$LOG_FILE"

          echo -e "\nTesting default suite with OpenSSL server and wolfSSL client (PQC)\n" &>> "$LOG_FILE"
          bash ./openssl-ech.sh server --pqc SecP384r1MLKEM1024 &>> "$LOG_FILE"

          echo -e "\nTesting default suite with OpenSSL client and wolfSSL server (PQC)\n" &>> "$LOG_FILE"
          bash ./openssl-ech.sh client --pqc SecP384r1MLKEM1024 &>> "$LOG_FILE"

          echo -e "\nTesting default suite with OpenSSL server and wolfSSL client (HRR)\n" &>> "$LOG_FILE"
          bash ./openssl-ech.sh server --hrr &>> "$LOG_FILE"

          echo -e "\nTesting default suite with OpenSSL client and wolfSSL server (HRR)\n" &>> "$LOG_FILE"
          bash ./openssl-ech.sh client --hrr &>> "$LOG_FILE"

          # weird suite (DHKEM_P521_HKDF_SHA512, HKDF_SHA256, HPKE_AES_256_GCM)
          echo -e "\nTesting weird suite with OpenSSL server and wolfSSL client\n" &>> "$LOG_FILE"
          bash ./openssl-ech.sh server --suite "18,1,2" &>> "$LOG_FILE"

          echo -e "\nTesting weird suite with OpenSSL client and wolfSSL server\n" &>> "$LOG_FILE"
          bash ./openssl-ech.sh client --suite "18,1,2" &>> "$LOG_FILE"

          # cleanup
          rm -f "$LOG_FILE"

      - name: Print debug info on failure
        if: ${{ failure() }}
        run: |
          if [ -s "$GITHUB_WORKSPACE/log_file.log" ]; then
            cat "$GITHUB_WORKSPACE/log_file.log"
          else
            echo "No log file"
          fi