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 CFLAGS='-DUSE_FLAT_TEST_H'
          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
          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_server_interop_test:
    name: ECH Server 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 server example
        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 "$WOLFSSL_BIN_DIR/server" \
                "$WOLFSSL_INSTALL_DIR/share/doc/wolfssl/example/server.c" \
                $CFLAGS $LIBS -I"$WOLFSSL_INSTALL_DIR/share/doc/wolfssl/example"

      - name: ECH interop - wolfSSL server, OpenSSL client
        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"

          OPENSSL=$GITHUB_WORKSPACE/openssl-install/bin/openssl
          WOLFSSL_SERVER=$GITHUB_WORKSPACE/build-dir/bin/server

          CERT_DIR="$GITHUB_WORKSPACE/build-dir/certs"
          READY_FILE="$GITHUB_WORKSPACE/wolfssl_tls13_ready$$"
          LOG_FILE="$GITHUB_WORKSPACE/log_file.log"
          PRIV_NAME="ech-private-name.com"
          PUB_NAME="ech-public-name.com"
          ECH_CONFIG=""
          PORT=0

          rm -f "$READY_FILE"

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

          $OPENSSL version | tee "$LOG_FILE"

          # start server with ephemeral port + ready file
          # also set server to be line buffered so the log can be grepped
          stdbuf -oL $WOLFSSL_SERVER \
                        -v 4 \
                        -R "$READY_FILE" \
                        -p "$PORT" \
                        -S "$PRIV_NAME" \
                        --ech "$PUB_NAME" \
                        &>> "$LOG_FILE" &

          # wait for server to be ready, then get port
          counter=0
          while [ ! -s "$READY_FILE" ]; do
              sleep 0.1
              counter=$((counter + 1))
              if [ "$counter" -gt 50 ]; then
                  echo "ERROR: no ready file" &>> "$LOG_FILE"
                  exit 1
              fi
          done
          PORT="$(cat "$READY_FILE")"
          echo "parsed port: $PORT" &>> "$LOG_FILE"

          # get ECH config from server
          counter=0
          while [ -z "$ECH_CONFIG" ]; do
              ECH_CONFIG=$(grep -m1 "ECH config (base64): " "$LOG_FILE" \
                  2>/dev/null | sed 's/ECH config (base64): //g')
              sleep 0.1
              counter=$((counter + 1))
              if [ "$counter" -gt 50 ]; then
                  echo "ERROR: no ECH configs" &>> "$LOG_FILE"
                  exit 1
              fi
          done
          echo "parsed ech config: $ECH_CONFIG" &>> "$LOG_FILE"

          # Test with OpenSSL s_client using ECH
          echo "wolfssl" | $OPENSSL s_client \
              -tls1_3 \
              -connect "localhost:$PORT" \
              -cert "$CERT_DIR/client-cert.pem" \
              -key "$CERT_DIR/client-key.pem" \
              -CAfile "$CERT_DIR/ca-cert.pem" \
              -servername "$PRIV_NAME" \
              -ech_config_list "$ECH_CONFIG" \
              &>> "$LOG_FILE"

          grep "ECH: success: 1" "$LOG_FILE"

          # cleanup
          rm -f "$READY_FILE"
          rm -f "$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

  ech_client_interop_test:
    name: ECH Client 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 example
        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"

      - name: ECH interop - wolfSSL client, OpenSSL server
        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"

          OPENSSL=$GITHUB_WORKSPACE/openssl-install/bin/openssl
          WOLFSSL_CLIENT=$GITHUB_WORKSPACE/build-dir/bin/client

          CERT_DIR="$GITHUB_WORKSPACE/build-dir/certs"
          LOG_FILE="$GITHUB_WORKSPACE/log_file.log"
          ECH_FILE="$GITHUB_WORKSPACE/ech_config.pem"
          PRIV_NAME="ech-private-name.com"
          PUB_NAME="ech-public-name.com"
          PORT=""
          ECH_CONFIG=""

          rm -f "$ECH_FILE"

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

          $OPENSSL version | tee "$LOG_FILE"

          $OPENSSL ech -public_name "$PUB_NAME" -out "$ECH_FILE" &>> "$LOG_FILE"

          # parse ECH config from file
          ECH_CONFIG=$(sed -n '/BEGIN ECHCONFIG/,/END ECHCONFIG/{/BEGIN ECHCONFIG\|END ECHCONFIG/d;p}' "$ECH_FILE" | tr -d '\n')
          echo "parsed ech config: $ECH_CONFIG" &>> "$LOG_FILE"

          # start OpenSSL ECH server with ephemeral port and make sure it is
          # line-buffered
          stdbuf -oL $OPENSSL s_server \
              -tls1_3 \
              -cert "$CERT_DIR/server-cert.pem" \
              -key "$CERT_DIR/server-key.pem" \
              -cert2 "$CERT_DIR/server-cert.pem" \
              -key2 "$CERT_DIR/server-key.pem" \
              -ech_key "$ECH_FILE" \
              -servername "$PRIV_NAME" \
              -accept 0 \
              -naccept 1 \
              &>> "$LOG_FILE" <<< "wolfssl!" &

          # wait for server port to be ready and capture it
          counter=0
          while [ -z "$PORT" ]; do
              PORT=$(grep -m1 "ACCEPT" "$LOG_FILE" | sed 's/.*:\([0-9]*\)$/\1/')
              sleep 0.1
              counter=$((counter + 1))
              if [ "$counter" -gt 50 ]; then
                  echo "ERROR: server port not found" &>> "$LOG_FILE"
                  exit 1
              fi
          done
          echo "parsed port: $PORT" &>> "$LOG_FILE"

          # test with wolfssl client
          $WOLFSSL_CLIENT -v 4 \
              -p "$PORT" \
              -S "$PRIV_NAME" \
              --ech "$ECH_CONFIG" \
              &>> "$LOG_FILE"

          grep "ech_success=1" "$LOG_FILE"

          # cleanup
          rm -f "$LOG_FILE"
          rm -f "$ECH_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