temporary solution for insufficient gas issue for AMB oracles

.circleci/config.yml

@@ -0,0 +1,382 @@
+version: 2.1
+
+orbs:
+  tokenbridge-orb:
+    commands:
+      install-chrome:
+        steps:
+          - run:
+              name: Update dpkg
+              command: |
+                sudo apt-get clean
+                sudo apt-get update
+                sudo apt-get install dpkg
+          - run:
+              name: Install Chrome
+              command: |
+                wget -O chrome.deb https://dl.google.com/linux/chrome/deb/pool/main/g/google-chrome-stable/google-chrome-stable_77.0.3865.120-1_amd64.deb
+                sudo dpkg -i chrome.deb
+      install-node:
+        steps:
+          - run:
+              name: Install Node
+              command: |
+                export NVM_DIR="/opt/circleci/.nvm"
+                [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
+
+                nvm install 10.16.3 && nvm alias default 10.16.3
+
+                echo 'export NVM_DIR="/opt/circleci/.nvm"' >> $BASH_ENV
+                echo ' [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"' >> $BASH_ENV
+      install-yarn:
+        steps:
+          - run:
+              name: Install Yarn
+              command: |
+                curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
+                echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
+                sudo apt-get update && sudo apt-get -y install yarn
+      wait-for-oracle:
+        parameters:
+          redis-key:
+            type: string
+        steps:
+          - run:
+              name: Install redis tools
+              command: sudo apt-get install -y redis-tools
+          - run:
+              name: Wait for the Oracle to start
+              command: |
+                set +e
+                i=0
+                while [[ $(redis-cli GET << parameters.redis-key >> ) ]]; do
+                  ((i++))
+                  if [ "$i" -gt 30 ]
+                  then
+                    exit -1
+                  fi
+
+                  echo "Sleeping..."
+                  sleep 3
+                done
+      init-repo:
+        steps:
+          - checkout
+          - run: git submodule update --init
+    executors:
+      docker-node:
+        docker:
+          - image: circleci/node:10.15
+      machine-with-dlc:
+        machine:
+          image: ubuntu-1604:202007-01
+          docker_layer_caching: true
+      classic-machine-without-dlc:
+        machine:
+          image: circleci/classic:latest
+      machine-without-dlc:
+        machine:
+          image: ubuntu-1604:202007-01
+
+jobs:
+  initialize:
+    executor: tokenbridge-orb/docker-node
+    steps:
+      - tokenbridge-orb/init-repo
+      - restore_cache:
+          name: Restore Yarn Package Cache
+          keys:
+            - yarn-{{ checksum "package.json" }}-{{ checksum "yarn.lock" }}
+      - run: git submodule status > submodule.status
+      - restore_cache:
+          name: Restore contracts submodule with compiled contracts
+          keys:
+            - contracts-{{ checksum "submodule.status" }}
+      - run: yarn install --frozen-lockfile
+      - save_cache:
+          name: Save Yarn Package Cache
+          key: yarn-{{ checksum "package.json" }}-{{ checksum "yarn.lock" }}
+          paths:
+            - ~/.cache/yarn
+      - run: touch install_deploy.log; test -d contracts/build/contracts || yarn install:deploy &> install_deploy.log
+      - store_artifacts:
+          path: install_deploy.log
+      - run: test -d contracts/build/contracts || yarn compile:contracts
+      - save_cache:
+          name: Save contracts submodule with compiled contracts
+          key: contracts-{{ checksum "submodule.status" }}
+          paths:
+            - contracts
+      - save_cache:
+          name: Save initialized project for subsequent jobs
+          key: initialize-{{ .Environment.CIRCLE_SHA1 }}
+          paths:
+            - ~/project
+  initialize-root:
+    executor: tokenbridge-orb/docker-node
+    steps:
+      - checkout
+      - run: sudo su - -c 'export CI=true && cd /home/circleci/project && yarn initialize && yarn test'
+  build:
+    executor: tokenbridge-orb/docker-node
+    steps:
+      - restore_cache:
+          key: initialize-{{ .Environment.CIRCLE_SHA1 }}
+      - run: yarn run build
+  lint:
+    executor: tokenbridge-orb/docker-node
+    steps:
+      - restore_cache:
+          key: initialize-{{ .Environment.CIRCLE_SHA1 }}
+      - run: yarn run lint
+  test:
+    executor: tokenbridge-orb/docker-node
+    steps:
+      - restore_cache:
+          key: initialize-{{ .Environment.CIRCLE_SHA1 }}
+      - run: yarn run test
+  build-e2e-images:
+    executor: tokenbridge-orb/machine-without-dlc
+    steps:
+      - tokenbridge-orb/init-repo
+      - run:
+          command: |
+            docker login -u ${DOCKER_LOGIN} -p ${DOCKER_PASSWORD}
+            cd e2e-commons
+            docker-compose build oracle monitor ui alm e2e molecule_runner
+            docker-compose push oracle monitor ui alm e2e molecule_runner
+  oracle-e2e:
+    executor: tokenbridge-orb/machine-without-dlc
+    steps:
+      - tokenbridge-orb/init-repo
+      - run: ./oracle-e2e/run-tests.sh
+  ui-e2e:
+    executor: tokenbridge-orb/machine-without-dlc
+    steps:
+      - tokenbridge-orb/install-node
+      - tokenbridge-orb/install-yarn
+      - tokenbridge-orb/install-chrome
+      - restore_cache:
+          key: initialize-{{ .Environment.CIRCLE_SHA1 }}
+      - run: yarn run ui-e2e
+  monitor-e2e:
+    executor: tokenbridge-orb/machine-without-dlc
+    steps:
+      - tokenbridge-orb/init-repo
+      - run: ./monitor-e2e/run-tests.sh
+  alm-e2e:
+    executor: tokenbridge-orb/machine-without-dlc
+    steps:
+      - tokenbridge-orb/install-node
+      - tokenbridge-orb/install-yarn
+      - restore_cache:
+          key: initialize-{{ .Environment.CIRCLE_SHA1 }}
+      - run: yarn run alm-e2e
+  cover:
+    executor: tokenbridge-orb/docker-node
+    steps:
+      - restore_cache:
+          key: initialize-{{ .Environment.CIRCLE_SHA1 }}
+      - run: yarn workspace ui run coverage
+      - run: yarn workspace ui run coveralls
+  deployment-oracle:
+    executor: tokenbridge-orb/machine-without-dlc
+    steps:
+      - tokenbridge-orb/init-repo
+      - run:
+          name: Run the scenario
+          command: deployment-e2e/molecule.sh oracle
+          no_output_timeout: 40m
+  deployment-ui:
+    executor: tokenbridge-orb/machine-without-dlc
+    steps:
+      - tokenbridge-orb/init-repo
+      - run:
+          name: Run the scenario
+          command: deployment-e2e/molecule.sh ui
+          no_output_timeout: 40m
+  deployment-monitor:
+    executor: tokenbridge-orb/machine-without-dlc
+    steps:
+      - tokenbridge-orb/init-repo
+      - run:
+          name: Run the scenario
+          command: deployment-e2e/molecule.sh monitor
+          no_output_timeout: 40m
+  deployment-repo:
+    executor: tokenbridge-orb/machine-without-dlc
+    steps:
+      - tokenbridge-orb/init-repo
+      - run:
+          name: Run the scenario
+          command: deployment-e2e/molecule.sh repo
+          no_output_timeout: 40m
+  deployment-multiple:
+    executor: tokenbridge-orb/machine-without-dlc
+    steps:
+      - tokenbridge-orb/init-repo
+      - run:
+          name: Run the scenario
+          command: deployment-e2e/molecule.sh multiple
+          no_output_timeout: 40m
+  ultimate:
+    executor: tokenbridge-orb/classic-machine-without-dlc
+    parameters:
+      scenario-name:
+        description: "Molecule scenario name used to create the infrastructure"
+        type: string
+      redis-key:
+        description: "Redis key checked for non-emptiness to assert if Oracle is running"
+        type: string
+      ui-e2e-grep:
+        description: "Mocha grep string used to run ui-e2e tests specific to given type of bridge"
+        default: ''
+        type: string
+      oracle-e2e-script:
+        description: "Yarn script string used to run oracle-e2e tests specific to given type of bridge"
+        default: ''
+        type: string
+    steps:
+      - tokenbridge-orb/install-node
+      - tokenbridge-orb/install-chrome
+      - tokenbridge-orb/install-yarn
+      - restore_cache:
+          key: initialize-{{ .Environment.CIRCLE_SHA1 }}
+      - run:
+          name: Prepare the infrastructure
+          command: e2e-commons/up.sh deploy << parameters.scenario-name >> blocks
+          no_output_timeout: 50m
+      - tokenbridge-orb/wait-for-oracle:
+          redis-key: << parameters.redis-key >>
+      - when:
+          condition: << parameters.ui-e2e-grep >>
+          steps:
+            - run:
+                name: Run the ui-e2e tests
+                command: |
+                  nvm use default;
+                  cd ui-e2e; yarn mocha -g "<< parameters.ui-e2e-grep >>" -b ./test.js
+      - when:
+          condition: << parameters.oracle-e2e-script >>
+          steps:
+            - run:
+                name: Run the oracle-e2e tests
+                command: cd e2e-commons && docker-compose run e2e yarn workspace oracle-e2e run << parameters.oracle-e2e-script >>
+workflows:
+  tokenbridge:
+    jobs:
+      - initialize
+      - initialize-root:
+          filters:
+            branches:
+              only: master
+      - build:
+          requires:
+            - initialize
+      - lint:
+          requires:
+            - initialize
+      - test:
+          requires:
+            - initialize
+      - cover:
+          requires:
+            - initialize
+          filters:
+            branches:
+              only: master
+      - build-e2e-images
+      - oracle-e2e:
+          requires:
+            - build-e2e-images
+      - ui-e2e:
+          requires:
+            - build-e2e-images
+            - initialize
+      - monitor-e2e:
+          requires:
+            - build-e2e-images
+      - alm-e2e:
+          requires:
+            - build-e2e-images
+            - initialize
+      - deployment-oracle:
+          requires:
+            - build-e2e-images
+      - deployment-ui:
+          requires:
+            - build-e2e-images
+      - deployment-monitor:
+          requires:
+            - build-e2e-images
+      - deployment-repo:
+          requires:
+            - build-e2e-images
+      - deployment-multiple:
+          requires:
+            - build-e2e-images
+      - ultimate:
+          requires:
+            - build-e2e-images
+            - initialize
+          filters:
+            branches:
+              only:
+                - master
+                - develop
+          name: "ultimate: native to erc"
+          scenario-name: native-to-erc
+          redis-key: native-erc-collected-signatures:lastProcessedBlock
+          ui-e2e-grep: "NATIVE TO ERC"
+      - ultimate:
+          requires:
+            - build-e2e-images
+            - initialize
+          filters:
+            branches:
+              only:
+                - master
+                - develop
+          name: "ultimate: erc to native"
+          scenario-name: erc-to-native
+          redis-key: erc-native-collected-signatures:lastProcessedBlock
+          ui-e2e-grep: "ERC TO NATIVE"
+      - ultimate:
+          requires:
+            - build-e2e-images
+            - initialize
+          filters:
+            branches:
+              only:
+                - master
+                - develop
+          name: "ultimate: erc to erc"
+          scenario-name: erc-to-erc
+          redis-key: erc-erc-collected-signatures:lastProcessedBlock
+          ui-e2e-grep: "ERC TO ERC"
+      - ultimate:
+          requires:
+            - build-e2e-images
+            - initialize
+          filters:
+            branches:
+              only:
+                - master
+                - develop
+          name: "ultimate: amb"
+          scenario-name: amb
+          redis-key: amb-collected-signatures:lastProcessedBlock
+          oracle-e2e-script: "amb"
+      - ultimate:
+          requires:
+            - build-e2e-images
+            - initialize
+          filters:
+            branches:
+              only:
+                - master
+                - develop
+          name: "ultimate: amb stake erc to erc"
+          scenario-name: ultimate-amb-stake-erc-to-erc
+          redis-key: amb-collected-signatures:lastProcessedBlock
+          ui-e2e-grep: "AMB-STAKE-ERC-TO-ERC"

.dockerignore

@@ -11,9 +11,6 @@
 contracts/test
 contracts/build
 oracle/test
-monitor/test
-monitor/responses
-commons/test
 oracle/**/*.png
 oracle/**/*.jpg
 audit

.github/workflows/main.yml

@@ -1,231 +0,0 @@
-name: tokenbridge
-
-on: [push]
-
-env:
-  DOCKER_REGISTRY: docker.pkg.github.com
-  DOCKER_REPO: poanetwork/tokenbridge
-  DOCKER_IMAGE_BASE: docker.pkg.github.com/poanetwork/tokenbridge
-
-jobs:
-  initialize:
-    runs-on: ubuntu-latest
-    outputs:
-      cache_key: ${{ steps.get_cache_key.outputs.cache_key }}
-    steps:
-      - uses: actions/setup-node@v1
-        with:
-          node-version: 10
-      - uses: actions/checkout@v2
-        with:
-          submodules: true
-      - run: git submodule status > submodule.status
-      - id: get_cache_key
-        run: echo "::set-output name=cache_key::cache-repo-${{ hashFiles('yarn.lock', 'package.json', 'submodule.status') }}"
-      - uses: actions/cache@v2
-        id: cache-repo
-        with:
-          path: |
-            **/node_modules
-            contracts/build
-          key: ${{ steps.get_cache_key.outputs.cache_key }}
-      - if: ${{ !steps.cache-repo.outputs.cache-hit }}
-        run: |
-          yarn install --frozen-lockfile
-          yarn run install:deploy
-          yarn run compile:contracts
-  validate:
-    runs-on: ubuntu-latest
-    needs:
-      - initialize
-    strategy:
-      fail-fast: false
-      matrix:
-        task: [build, lint, test]
-    steps:
-      - uses: actions/setup-node@v1
-        with:
-          node-version: 10
-      - uses: actions/checkout@v2
-        with:
-          submodules: true
-      - uses: actions/cache@v2
-        id: cache-repo
-        with:
-          path: |
-            **/node_modules
-            contracts/build
-          key: ${{ needs.initialize.outputs.cache_key }}
-      - run: ${{ steps.cache-repo.outputs.cache-hit }} && yarn run ${{ matrix.task }}
-  ui-coverage:
-    runs-on: ubuntu-latest
-    needs:
-      - initialize
-    if: github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/tags')
-    steps:
-      - uses: actions/setup-node@v1
-        with:
-          node-version: 10
-      - uses: actions/checkout@v2
-        with:
-          submodules: true
-      - uses: actions/cache@v2
-        id: cache-repo
-        with:
-          path: |
-            **/node_modules
-            contracts/build
-          key: ${{ needs.initialize.outputs.cache_key }}
-      - run: ${{ steps.cache-repo.outputs.cache-hit }} && yarn workspace ui run coverage
-      - uses: coverallsapp/github-action@master
-        with:
-          github-token: ${{ github.token }}
-          path-to-lcov: ./ui/coverage/lcov.info
-  build-e2e-images:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          submodules: true
-      - run: |
-          git submodule status > submodule.status
-          echo "::set-env name=E2E_TAG::${{ hashFiles('yarn.lock', 'package.json', 'submodule.status', 'Dockerfile.e2e', 'commons', 'oracle-e2e', 'monitor-e2e') }}"
-          echo "::set-env name=ORACLE_TAG::${{ hashFiles('yarn.lock', 'package.json', 'submodule.status', 'commons', 'oracle') }}"
-          echo "::set-env name=MONITOR_TAG::${{ hashFiles('yarn.lock', 'package.json', 'submodule.status', 'commons', 'monitor') }}"
-          echo "::set-env name=UI_TAG::${{ hashFiles('yarn.lock', 'package.json', 'submodule.status', 'commons', 'ui') }}"
-          echo "::set-env name=ALM_TAG::${{ hashFiles('yarn.lock', 'package.json', 'submodule.status', 'commons', 'alm') }}"
-      - run: |
-          function check_if_image_exists() {
-            curl -fsSlL -H 'Authorization: bearer ${{ github.token }}' "https://${DOCKER_REGISTRY}/v2/${DOCKER_REPO}/tokenbridge-e2e-$1/manifests/$2" > /dev/null
-          }
-          updated=()
-          if ! check_if_image_exists e2e ${E2E_TAG};         then updated+=("e2e"); fi
-          if ! check_if_image_exists oracle ${ORACLE_TAG};   then updated+=("oracle"); fi
-          if ! check_if_image_exists monitor ${MONITOR_TAG}; then updated+=("monitor"); fi
-          if ! check_if_image_exists ui ${UI_TAG};           then updated+=("ui"); fi
-          if ! check_if_image_exists alm ${ALM_TAG};         then updated+=("alm"); fi
-          if [ ${#updated[@]} -gt 0 ]; then
-            echo "Updated services: ${updated[@]}"
-            cd e2e-commons
-            docker login ${DOCKER_REGISTRY} -u ${{ github.actor }} -p ${{ github.token }}
-            docker-compose build ${updated[@]}
-            docker-compose push ${updated[@]}
-          else
-            echo "Nothing relevant was changed in the source"
-          fi
-  build-molecule-runner:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          submodules: true
-      - run: echo "::set-env name=MOLECULE_RUNNER_TAG::${{ hashFiles('./deployment-e2e/Dockerfile') }}"
-      - run: |
-          function check_if_image_exists() {
-            curl -fsSlL -H 'Authorization: bearer ${{ github.token }}' "https://${DOCKER_REGISTRY}/v2/${DOCKER_REPO}/tokenbridge-e2e-$1/manifests/$2" > /dev/null
-          }
-          if check_if_image_exists molecule_runner ${MOLECULE_RUNNER_TAG}; then
-            echo "Image already exists"
-          else
-            cd e2e-commons
-            docker login ${DOCKER_REGISTRY} -u ${{ github.actor }} -p ${{ github.token }}
-            docker-compose build molecule_runner
-            docker-compose push molecule_runner
-          fi
-  e2e:
-    runs-on: ubuntu-latest
-    needs:
-      - initialize
-      - build-e2e-images
-    strategy:
-      fail-fast: false
-      matrix:
-        task: [oracle-e2e, monitor-e2e, alm-e2e, 'ui-e2e:ci']
-        include:
-          - task: alm-e2e
-            use-cache: true
-          - task: 'ui-e2e:ci'
-            use-cache: true
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          submodules: true
-      - run: |
-          git submodule status > submodule.status
-          echo "::set-env name=E2E_TAG::${{ hashFiles('yarn.lock', 'package.json', 'submodule.status', 'Dockerfile.e2e', 'commons', 'oracle-e2e', 'monitor-e2e') }}"
-          echo "::set-env name=ORACLE_TAG::${{ hashFiles('yarn.lock', 'package.json', 'submodule.status', 'commons', 'oracle') }}"
-          echo "::set-env name=MONITOR_TAG::${{ hashFiles('yarn.lock', 'package.json', 'submodule.status', 'commons', 'monitor') }}"
-          echo "::set-env name=UI_TAG::${{ hashFiles('yarn.lock', 'package.json', 'submodule.status', 'commons', 'ui') }}"
-          echo "::set-env name=ALM_TAG::${{ hashFiles('yarn.lock', 'package.json', 'submodule.status', 'commons', 'alm') }}"
-      - if: ${{ matrix.use-cache }} 
-        uses: actions/cache@v2
-        id: cache-repo
-        with:
-          path: |
-            **/node_modules
-            contracts/build
-          key: ${{ needs.initialize.outputs.cache_key }}
-      - run: docker login ${DOCKER_REGISTRY} -u ${{ github.actor }} -p ${{ github.token }}
-      - run: ${{ !matrix.use-cache || steps.cache-repo.outputs.cache-hit }} && yarn run ${{ matrix.task }}
-  deployment:
-    runs-on: ubuntu-latest
-    needs:
-      - build-molecule-runner
-    strategy:
-      fail-fast: false
-      matrix:
-        task: [oracle, ui, monitor, multiple, repo]
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          submodules: true
-      - run: echo "::set-env name=MOLECULE_RUNNER_TAG::${{ hashFiles('./deployment-e2e/Dockerfile') }}"
-      - run: docker login ${DOCKER_REGISTRY} -u ${{ github.actor }} -p ${{ github.token }}
-      - run: deployment-e2e/molecule.sh ${{ matrix.task }}
-  ultimate:
-    runs-on: ubuntu-latest
-    needs:
-      - initialize
-      - build-e2e-images
-    if: github.ref == 'refs/heads/master' || github.ref == 'refs/heads/develop' || startsWith(github.ref, 'refs/tags')
-    strategy:
-      fail-fast: false
-      matrix:
-        task: [amb, erc-to-erc, erc-to-native, native-to-erc, amb-stake-erc-to-erc]
-        include:
-          - task: erc-to-erc
-            ui-e2e-grep: 'ERC TO ERC'
-          - task: erc-to-native
-            ui-e2e-grep: 'ERC TO NATIVE'
-          - task: native-to-erc
-            ui-e2e-grep: 'NATIVE TO ERC'
-          - task: amb-stake-erc-to-erc
-            ui-e2e-grep: 'AMB-STAKE-ERC-TO-ERC'
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          submodules: true
-      - run: |
-          git submodule status > submodule.status
-          echo "::set-env name=E2E_TAG::${{ hashFiles('yarn.lock', 'package.json', 'submodule.status', 'Dockerfile.e2e', 'commons', 'oracle-e2e', 'monitor-e2e') }}"
-          echo "::set-env name=ORACLE_TAG::${{ hashFiles('yarn.lock', 'package.json', 'submodule.status', 'commons', 'oracle') }}"
-          echo "::set-env name=MONITOR_TAG::${{ hashFiles('yarn.lock', 'package.json', 'submodule.status', 'commons', 'monitor') }}"
-          echo "::set-env name=UI_TAG::${{ hashFiles('yarn.lock', 'package.json', 'submodule.status', 'commons', 'ui') }}"
-          echo "::set-env name=ALM_TAG::${{ hashFiles('yarn.lock', 'package.json', 'submodule.status', 'commons', 'alm') }}"
-          echo "::set-env name=MOLECULE_RUNNER_TAG::${{ hashFiles('./deployment-e2e/Dockerfile') }}"
-      - uses: actions/cache@v2
-        id: cache-repo
-        with:
-          path: |
-            **/node_modules
-            contracts/build
-          key: ${{ needs.initialize.outputs.cache_key }}
-      - run: docker login ${DOCKER_REGISTRY} -u ${{ github.actor }} -p ${{ github.token }}
-      - run: ${{ steps.cache-repo.outputs.cache-hit }} && e2e-commons/up.sh deploy blocks
-      - run: docker-compose -f ./e2e-commons/docker-compose.yml pull oracle
-      - run: deployment-e2e/molecule.sh ultimate-${{ matrix.task }}
-      - run: sudo chown -R $USER:docker /var/run/docker.sock
-      - if: ${{ matrix.ui-e2e-grep }}
-        run: cd ui-e2e && xvfb-run yarn mocha -g "${{ matrix.ui-e2e-grep }}" -b ./test.js
-      - if: ${{ !matrix.ui-e2e-grep }}
-        run: docker-compose -f ./e2e-commons/docker-compose.yml run e2e yarn workspace oracle-e2e run ${{ matrix.task }}

CONFIGURATION.md

@@ -12,7 +12,7 @@ COMMON_HOME_GAS_PRICE_SUPPLIER_URL | The URL used to get a JSON response from th
 COMMON_HOME_GAS_PRICE_SPEED_TYPE | Assuming the gas price oracle responds with the following JSON structure: `{"fast": 20.0, "block_time": 12.834, "health": true, "standard": 6.0, "block_number": 6470469, "instant": 71.0, "slow": 1.889}`, this parameter specifies the desirable transaction speed. The speed type can be omitted when `COMMON_HOME_GAS_PRICE_SUPPLIER_URL` is not used. | `instant` / `fast` / `standard` / `slow`
 COMMON_HOME_GAS_PRICE_FALLBACK | The gas price (in Wei) that is used if both the oracle and the fall back gas price specified in the Home Bridge contract are not available. | integer
 COMMON_HOME_GAS_PRICE_FACTOR | A value that will multiply the gas price of the oracle to convert it to gwei. If the oracle API returns gas prices in gwei then this can be set to `1`. Also, it could be used to intentionally pay more gas than suggested by the oracle to guarantee the transaction verification. E.g. `1.25` or `1.5`. | integer
-COMMON_FOREIGN_GAS_PRICE_SUPPLIER_URL | The URL used to get a JSON response from the gas price prediction oracle for the Foreign network. The provided gas price is used to send the validator's transactions to the RPC node. If the Foreign network is Ethereum Foundation mainnet, the oracle URL can be: https://gasprice.poa.network. Otherwise this parameter can be omitted. Set to `gas-price-oracle` if you want to use npm `gas-price-oracle` package for retrieving gas price from multiple sources. | URL
+COMMON_FOREIGN_GAS_PRICE_SUPPLIER_URL | The URL used to get a JSON response from the gas price prediction oracle for the Foreign network. The provided gas price is used to send the validator's transactions to the RPC node. If the Foreign network is Ethereum Foundation mainnet, the oracle URL can be: https://gasprice.poa.network. Otherwise this parameter can be omitted. | URL
 COMMON_FOREIGN_GAS_PRICE_SPEED_TYPE | Assuming the gas price oracle responds with the following JSON structure: `{"fast": 20.0, "block_time": 12.834, "health": true, "standard": 6.0, "block_number": 6470469, "instant": 71.0, "slow": 1.889}`, this parameter specifies the desirable transaction speed. The speed type can be omitted when `COMMON_FOREIGN_GAS_PRICE_SUPPLIER_URL`is not used. | `instant` / `fast` / `standard` / `slow`
 COMMON_FOREIGN_GAS_PRICE_FALLBACK | The gas price (in Wei) used if both the oracle and fall back gas price specified in the Foreign Bridge contract are not available. | integer
 COMMON_FOREIGN_GAS_PRICE_FACTOR | A value that will multiply the gas price of the oracle to convert it to gwei. If the oracle API returns gas prices in gwei then this can be set to `1`. Also, it could be used to intentionally pay more gas than suggested by the oracle to guarantee the transaction verification. E.g. `1.25` or `1.5`. | integer

Dockerfile.e2e

@@ -1,4 +1,4 @@
-FROM node:10 as contracts
+FROM node:8 as contracts
 
 WORKDIR /mono
 
@@ -11,12 +11,11 @@ COPY ./contracts/truffle-config.js ./
 COPY ./contracts/contracts ./contracts
 RUN npm run compile
 
-FROM node:10
+FROM node:8
 
 WORKDIR /mono
 COPY package.json .
 COPY --from=contracts /mono/contracts/build ./contracts/build
-COPY commons/package.json ./commons/
 COPY oracle-e2e/package.json ./oracle-e2e/
 COPY monitor-e2e/package.json ./monitor-e2e/
 

README.md

@@ -1,4 +1,4 @@
-![tokenbridge](https://github.com/poanetwork/tokenbridge/workflows/tokenbridge/badge.svg?branch=master)
+[![CircleCI](https://circleci.com/gh/poanetwork/tokenbridge.svg?style=svg)](https://circleci.com/gh/poanetwork/tokenbridge)
 [![Gitter](https://badges.gitter.im/poanetwork/poa-bridge.svg)](https://gitter.im/poanetwork/poa-bridge?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![License: LGPL v3.0](https://img.shields.io/badge/License-LGPL%20v3-blue.svg)](https://www.gnu.org/licenses/lgpl-3.0)
 
@@ -110,4 +110,4 @@ This project is licensed under the GNU Lesser General Public License v3.0. See t
 
 ## References
 
-* [TokenBridge Documentation](https://docs.tokenbridge.net/)
+* [TokenBridge Documentation](http://www.tokenbridge.net/)

alm/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:10 as contracts
+FROM node:8 as contracts
 
 WORKDIR /mono
 

alm/src/components/StatusContainer.tsx

@@ -64,6 +64,10 @@ export const StatusContainer = ({ onBackToMain, setNetworkFromParams, receiptPar
   const displayReference = multiMessageSelected ? messages[selectedMessageId].id : txHash
   const formattedMessageId = formatTxHash(displayReference)
 
+  const displayedDescription = multiMessageSelected
+    ? getTransactionStatusDescription(TRANSACTION_STATUS.SUCCESS_ONE_MESSAGE, timestamp)
+    : description
+
   const isHome = chainId === home.chainId.toString()
   const txExplorerLink = getExplorerTxUrl(txHash, isHome)
   const displayExplorerLink = status !== TRANSACTION_STATUS.NOT_FOUND
@@ -71,32 +75,17 @@ export const StatusContainer = ({ onBackToMain, setNetworkFromParams, receiptPar
   const displayConfirmations = status === TRANSACTION_STATUS.SUCCESS_ONE_MESSAGE || multiMessageSelected
   const messageToConfirm =
     messages.length > 1 ? messages[selectedMessageId] : messages.length > 0 ? messages[0] : { id: '', data: '' }
-
-  let displayedDescription: string = multiMessageSelected
-    ? getTransactionStatusDescription(TRANSACTION_STATUS.SUCCESS_ONE_MESSAGE, timestamp)
-    : description
-  let link
-  const descArray = displayedDescription.split('%link')
-  if (descArray.length > 1) {
-    displayedDescription = descArray[0]
-    link = (
-      <ExplorerTxLink href={descArray[1]} target="_blank" rel="noopener noreferrer">
-        {descArray[1]}
-      </ExplorerTxLink>
-    )
-  }
-
   return (
     <div>
       {status && (
         <p>
-          The transaction{' '}
+          The request{' '}
           {displayExplorerLink && (
             <ExplorerTxLink href={txExplorerLink} target="_blank">
               {formattedMessageId}
             </ExplorerTxLink>
           )}
-          {!displayExplorerLink && <label>{formattedMessageId}</label>} {displayedDescription} {link}
+          {!displayExplorerLink && <label>{formattedMessageId}</label>} {displayedDescription}
         </p>
       )}
       {displayMessageSelector && <MessageSelector messages={messages} onMessageSelected={onMessageSelected} />}

alm/src/config/descriptions.ts

@@ -2,8 +2,7 @@
 export const TRANSACTION_STATUS_DESCRIPTION: { [key: string]: string } = {
   SUCCESS_MULTIPLE_MESSAGES: 'was initiated %t and contains several bridge messages. Specify one of them:',
   SUCCESS_ONE_MESSAGE: 'was initiated %t',
-  SUCCESS_NO_MESSAGES:
+  SUCCESS_NO_MESSAGES: 'execution succeeded %t but it does not contain any bridge messages',
-    'successfully mined %t but it does not seem to contain any request to the bridge, \nso nothing needs to be confirmed by the validators. \nIf you are sure that the transaction should contain a request to the bridge,\ncontact to the validators by \nmessaging on %linkhttps://forum.poa.network/c/support',
   FAILED: 'failed %t',
   NOT_FOUND:
     'Transaction not found. \n1. Check that the transaction hash is correct. \n2. Wait several blocks for the transaction to be\nmined, gas price affects mining speed.'

alm/src/utils/__tests__/getConfirmationsForTx.test.ts

@@ -351,7 +351,7 @@ describe('getConfirmationsForTx', () => {
         { validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS },
         { validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS },
         { validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.FAILED, txHash: '0x123', timestamp: 123 },
-        { validator: validator4, status: VALIDATOR_CONFIRMATION_STATUS.NOT_REQUIRED }
+        { validator: validator4, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED }
       ])
     )
     expect(setResult.mock.calls[1][0]).toEqual(

commons/abis.js

@@ -13,6 +13,7 @@ const REWARDABLE_VALIDATORS_ABI = require('../contracts/build/contracts/Rewardab
 const HOME_AMB_ABI = require('../contracts/build/contracts/HomeAMB').abi
 const FOREIGN_AMB_ABI = require('../contracts/build/contracts/ForeignAMB').abi
 const BOX_ABI = require('../contracts/build/contracts/Box').abi
+const SAI_TOP = require('../contracts/build/contracts/SaiTopMock').abi
 const HOME_AMB_ERC_TO_ERC_ABI = require('../contracts/build/contracts/HomeAMBErc677ToErc677').abi
 const FOREIGN_AMB_ERC_TO_ERC_ABI = require('../contracts/build/contracts/ForeignAMBErc677ToErc677').abi
 const HOME_STAKE_ERC_TO_ERC_ABI = require('../contracts/build/contracts/HomeStakeTokenMediator').abi
@@ -135,6 +136,7 @@ module.exports = {
   OLD_AMB_USER_REQUEST_FOR_AFFIRMATION_ABI,
   OLD_AMB_USER_REQUEST_FOR_SIGNATURE_ABI,
   BOX_ABI,
+  SAI_TOP,
   HOME_STAKE_ERC_TO_ERC_ABI,
   FOREIGN_STAKE_ERC_TO_ERC_ABI
 }

commons/package.json

@@ -8,7 +8,6 @@
     "test": "NODE_ENV=test mocha"
   },
   "dependencies": {
-    "gas-price-oracle": "^0.1.5",
     "web3-utils": "1.0.0-beta.34"
   },
   "devDependencies": {

commons/utils.js

@@ -1,10 +1,7 @@
 const { toWei, toBN } = require('web3-utils')
-const { GasPriceOracle } = require('gas-price-oracle')
 const { BRIDGE_MODES, FEE_MANAGER_MODE, ERC_TYPES } = require('./constants')
 const { REWARDABLE_VALIDATORS_ABI } = require('./abis')
 
-const gasPriceOracle = new GasPriceOracle()
-
 function decodeBridgeMode(bridgeModeHash) {
   switch (bridgeModeHash) {
     case '0x92a8d7fe':
@@ -238,13 +235,8 @@ const normalizeGasPrice = (oracleGasPrice, factor, limits = null) => {
 // we use built-in 'fetch' on browser side, and `node-fetch` package in Node.
 const gasPriceFromSupplier = async (fetchFn, options = {}) => {
   try {
-    let json
+    const response = await fetchFn()
-    if (fetchFn) {
+    const json = await response.json()
-      const response = await fetchFn()
-      json = await response.json()
-    } else {
-      json = await gasPriceOracle.fetchGasPricesOffChain()
-    }
     const oracleGasPrice = json[options.speedType]
 
     if (!oracleGasPrice) {

deployment-e2e/README.md

@@ -13,7 +13,7 @@ git push
 Alternatively, if there are no changes except the playbooks, you can use the `master` branch:
 
 ```
-./molecule.sh <scenario_name>
+CIRCLE_BRANCH=master ./molecule.sh <scenario_name>
 ```
 
 In this case `master` branch will be used as a codebase for Monitor, UI, Oracle and Contracts deployed by your local playbook.
@@ -21,7 +21,7 @@ In this case `master` branch will be used as a codebase for Monitor, UI, Oracle
 ## Run the tests
 
 ```
-./molecule.sh <scenario_name>
+CIRCLE_BRANCH=master ./molecule.sh <scenario_name>
 ```
 
 Available scenarios:

deployment-e2e/molecule.sh

@@ -2,11 +2,7 @@
 cd ./e2e-commons
 set -e # exit when any command fails
 
-if [ -z "$CI" ]; then
+docker-compose pull molecule_runner
-  docker-compose build molecule_runner
-else
-  docker-compose pull molecule_runner
-fi
 docker network create --driver bridge ultimate || true
 while [ "$1" != "" ]; do
   docker-compose run molecule_runner /bin/bash -c "molecule test --scenario-name $1"

deployment-e2e/molecule/ultimate-commons/oracle-docker-compose.yml

@@ -6,10 +6,12 @@
   - name: stop the service
     shell: service poabridge stop
 
-  - name: ReTag current oracle image
+  - name: Build current oracle image
-    shell: docker tag $(docker images --format '{{ '{{' }}.Repository{{ '}}' }}:{{ '{{' }}.Tag{{ '}}' }}' | grep -m 1 tokenbridge-e2e-oracle) oracle:ultimate-testing
+    shell: docker build -t oracle:ultimate-testing --file oracle/Dockerfile .
     delegate_to: 127.0.0.1
     become: false
+    args:
+      chdir: "{{ lookup('env', 'PWD') }}/.."
 
   - name: Replace oracle image
     replace:

deployment/roles/common/tasks/repo.yml

@@ -12,7 +12,6 @@
   copy:
     src: ../../../../{{ item }}
     dest: "{{ bridge_path }}/"
-    mode: '0640'
   with_items:
     - monorepo.tar.gz
     - contracts.tar.gz

deployment/roles/monitor/tasks/pre_config.yml

@@ -24,8 +24,6 @@
   template:
     src: .env.j2
     dest: "{{ bridge_path }}/monitor/.env"
-    owner: "{{ compose_service_user }}"
-    mode: '0640'
   when: skip_task != true
 
 - name: Copy docker-compose file
@@ -47,5 +45,3 @@
   template:
     src: config.env.j2
     dest: "{{ bridge_path }}/monitor/configs/{{ MONITOR_BRIDGE_NAME }}.env"
-    owner: "{{ compose_service_user }}"
-    mode: '0640'

deployment/roles/oracle/tasks/pre_config.yml

@@ -9,8 +9,6 @@
   template:
     src: .env.j2
     dest: "{{ bridge_path }}/oracle/.env"
-    owner: "{{ compose_service_user }}"
-    mode: '0640'
 
 - name: Copy docker-compose files
   copy:

deployment/roles/ui/tasks/pre_config.yml

@@ -3,5 +3,3 @@
   template:
     src: .env.j2
     dest: "{{ bridge_path }}/ui/.env"
-    owner: "{{ compose_service_user }}"
-    mode: '0640'

e2e-commons/Dockerfile.ui

@@ -1,6 +1,6 @@
-ARG DOCKER_IMAGE_BASE
+ARG DOCKER_LOGIN
-ARG UI_TAG
+ARG CIRCLE_BRANCH
-FROM ${DOCKER_IMAGE_BASE}/tokenbridge-e2e-ui:${UI_TAG}
+FROM ${DOCKER_LOGIN}/tokenbridge-e2e-ui:${CIRCLE_BRANCH}
 
 ARG DOT_ENV_PATH
 

e2e-commons/build.sh

@@ -1,17 +0,0 @@
-#!/usr/bin/env bash
-cd $(dirname $0)
-set -e # exit when any command fails
-
-docker-compose build e2e
-while [ "$1" != "" ]; do
-  if [ "$1" == "oracle" ]; then
-    docker-compose build oracle
-  elif [ "$1" == "monitor" ]; then
-    docker-compose build monitor
-  elif [ "$1" == "ui" ]; then
-    docker-compose build ui
-  elif [ "$1" == "alm" ]; then
-    docker-compose build alm
-  fi
-  shift
-done

e2e-commons/constants.json

@@ -50,6 +50,8 @@
     "home": "0x488Af810997eD1730cB3a3918cD83b3216E6eAda",
     "foreign": "0x488Af810997eD1730cB3a3918cD83b3216E6eAda",
     "foreignToken": "0x7cc4b1851c35959d34e635a470f6b5c43ba3c9c9",
+    "halfDuplexToken": "0x89d24A6b4CcB1B6fAA2625fE562bDD9a23260359",
+    "saiTop": "0x9b0ccf7C8994E19F39b2B4CF708e0A7DF65fA8a3",
     "chaiToken": "0x06af07097c9eeb7fd685c692751d5c66db49c215",
     "ui": "http://localhost:3002",
     "monitor": "http://monitor-erc20-native:3012/bridge"

e2e-commons/docker-compose.yml

@@ -1,4 +1,5 @@
-version: '3.8'
+---
+version: '3'
 networks:
   ultimate:
     external: true
@@ -26,7 +27,7 @@ services:
     networks:
       - ultimate
   oracle:
-    image: ${DOCKER_IMAGE_BASE:-tokenbridge}/tokenbridge-e2e-oracle:${ORACLE_TAG:-local}
+    image: ${DOCKER_LOGIN}/tokenbridge-e2e-oracle:${CIRCLE_BRANCH}
     build:
       context: ..
       dockerfile: oracle/Dockerfile
@@ -37,7 +38,10 @@ services:
     networks:
       - ultimate
   oracle-erc20:
-    image: ${DOCKER_IMAGE_BASE:-tokenbridge}/tokenbridge-e2e-oracle:${ORACLE_TAG:-local}
+    image: ${DOCKER_LOGIN}/tokenbridge-e2e-oracle:${CIRCLE_BRANCH}
+    build:
+      context: ..
+      dockerfile: oracle/Dockerfile
     env_file: ../e2e-commons/components-envs/oracle-erc20.env
     environment:
     - NODE_ENV=production
@@ -45,7 +49,10 @@ services:
     networks:
       - ultimate
   oracle-erc20-native:
-    image: ${DOCKER_IMAGE_BASE:-tokenbridge}/tokenbridge-e2e-oracle:${ORACLE_TAG:-local}
+    image: ${DOCKER_LOGIN}/tokenbridge-e2e-oracle:${CIRCLE_BRANCH}
+    build:
+      context: ..
+      dockerfile: oracle/Dockerfile
     env_file: ../e2e-commons/components-envs/oracle-erc20-native.env
     environment:
     - NODE_ENV=production
@@ -53,7 +60,10 @@ services:
     networks:
       - ultimate
   oracle-amb:
-    image: ${DOCKER_IMAGE_BASE:-tokenbridge}/tokenbridge-e2e-oracle:${ORACLE_TAG:-local}
+    image: ${DOCKER_LOGIN}/tokenbridge-e2e-oracle:${CIRCLE_BRANCH}
+    build:
+      context: ..
+      dockerfile: oracle/Dockerfile
     env_file: ../e2e-commons/components-envs/oracle-amb.env
     environment:
     - NODE_ENV=production
@@ -61,7 +71,7 @@ services:
     networks:
       - ultimate
   ui:
-    image: ${DOCKER_IMAGE_BASE:-tokenbridge}/tokenbridge-e2e-ui:${UI_TAG:-local}
+    image: ${DOCKER_LOGIN}/tokenbridge-e2e-ui:${CIRCLE_BRANCH}
     build:
       context: ..
       dockerfile: ui/Dockerfile
@@ -75,8 +85,8 @@ services:
       context: ..
       dockerfile: e2e-commons/Dockerfile.ui
       args:
-        DOCKER_IMAGE_BASE: ${DOCKER_IMAGE_BASE:-tokenbridge}
+        DOCKER_LOGIN: ${DOCKER_LOGIN}
-        UI_TAG: ${UI_TAG:-local}
+        CIRCLE_BRANCH: ${CIRCLE_BRANCH}
         DOT_ENV_PATH: e2e-commons/components-envs/ui-erc20.env
     command: "true"
     networks:
@@ -86,8 +96,8 @@ services:
       context: ..
       dockerfile: e2e-commons/Dockerfile.ui
       args:
-        DOCKER_IMAGE_BASE: ${DOCKER_IMAGE_BASE:-tokenbridge}
+        DOCKER_LOGIN: ${DOCKER_LOGIN}
-        UI_TAG: ${UI_TAG:-local}
+        CIRCLE_BRANCH: ${CIRCLE_BRANCH}
         DOT_ENV_PATH: e2e-commons/components-envs/ui-erc20-native.env
     command: "true"
     networks:
@@ -97,14 +107,14 @@ services:
       context: ..
       dockerfile: e2e-commons/Dockerfile.ui
       args:
-        DOCKER_IMAGE_BASE: ${DOCKER_IMAGE_BASE:-tokenbridge}
+        DOCKER_LOGIN: ${DOCKER_LOGIN}
-        UI_TAG: ${UI_TAG:-local}
+        CIRCLE_BRANCH: ${CIRCLE_BRANCH}
         DOT_ENV_PATH: e2e-commons/components-envs/ui-amb-stake-erc20-erc20.env
     command: "true"
     networks:
       - ultimate
   alm:
-    image: ${DOCKER_IMAGE_BASE:-tokenbridge}/tokenbridge-e2e-alm:${ALM_TAG:-local}
+    image: ${DOCKER_LOGIN}/tokenbridge-e2e-alm:${CIRCLE_BRANCH}
     build:
       context: ..
       dockerfile: alm/Dockerfile
@@ -114,7 +124,7 @@ services:
     networks:
       - ultimate
   monitor:
-    image: ${DOCKER_IMAGE_BASE:-tokenbridge}/tokenbridge-e2e-monitor:${MONITOR_TAG:-local}
+    image: ${DOCKER_LOGIN}/tokenbridge-e2e-monitor:${CIRCLE_BRANCH}
     build:
       context: ..
       dockerfile: monitor/Dockerfile
@@ -125,7 +135,10 @@ services:
     networks:
       - ultimate
   monitor-erc20:
-    image: ${DOCKER_IMAGE_BASE:-tokenbridge}/tokenbridge-e2e-monitor:${MONITOR_TAG:-local}
+    image: ${DOCKER_LOGIN}/tokenbridge-e2e-monitor:${CIRCLE_BRANCH}
+    build:
+      context: ..
+      dockerfile: monitor/Dockerfile
     env_file: ../e2e-commons/components-envs/monitor-erc20.env
     entrypoint: yarn check-and-start
     ports:
@@ -133,7 +146,10 @@ services:
     networks:
       - ultimate
   monitor-erc20-native:
-    image: ${DOCKER_IMAGE_BASE:-tokenbridge}/tokenbridge-e2e-monitor:${MONITOR_TAG:-local}
+    image: ${DOCKER_LOGIN}/tokenbridge-e2e-monitor:${CIRCLE_BRANCH}
+    build:
+      context: ..
+      dockerfile: monitor/Dockerfile
     env_file: ../e2e-commons/components-envs/monitor-erc20-native.env
     entrypoint: yarn check-and-start
     ports:
@@ -141,7 +157,10 @@ services:
     networks:
       - ultimate
   monitor-amb:
-    image: ${DOCKER_IMAGE_BASE:-tokenbridge}/tokenbridge-e2e-monitor:${MONITOR_TAG:-local}
+    image: ${DOCKER_LOGIN}/tokenbridge-e2e-monitor:${CIRCLE_BRANCH}
+    build:
+      context: ..
+      dockerfile: monitor/Dockerfile
     env_file: ../e2e-commons/components-envs/monitor-amb.env
     entrypoint: yarn check-and-start
     ports:
@@ -149,7 +168,7 @@ services:
     networks:
       - ultimate
   e2e:
-    image: ${DOCKER_IMAGE_BASE:-tokenbridge}/tokenbridge-e2e-e2e:${E2E_TAG:-local}
+    image: ${DOCKER_LOGIN}/tokenbridge-e2e-e2e:${CIRCLE_BRANCH}
     build:
       context: ..
       dockerfile: Dockerfile.e2e
@@ -157,12 +176,15 @@ services:
     networks:
       - ultimate
   blocks:
-    image: ${DOCKER_IMAGE_BASE:-tokenbridge}/tokenbridge-e2e-e2e:${E2E_TAG:-local}
+    image: ${DOCKER_LOGIN}/tokenbridge-e2e-e2e:${CIRCLE_BRANCH}
+    build:
+      context: ..
+      dockerfile: Dockerfile.e2e
     entrypoint: node e2e-commons/scripts/blocks.js
     networks:
       - ultimate
   molecule_runner:
-    image: ${DOCKER_IMAGE_BASE:-tokenbridge}/tokenbridge-e2e-molecule_runner:${MOLECULE_RUNNER_TAG:-local}
+    image: ${DOCKER_LOGIN}/tokenbridge-e2e-molecule_runner:${CIRCLE_BRANCH}
     build:
       context: ..
       dockerfile: deployment-e2e/Dockerfile

e2e-commons/up.sh

@@ -4,13 +4,7 @@ set -e # exit when any command fails
 
 ./down.sh
 docker-compose build parity1 parity2
-
+test -n "$NODOCKERPULL" || ./pull.sh $@
-if [ -z "$CI" ]; then
-  ./build.sh $@
-else
-  ./pull.sh $@
-fi
-
 docker network create --driver bridge ultimate || true
 docker-compose up -d parity1 parity2 e2e
 
@@ -28,6 +22,8 @@ startValidator () {
     docker-compose $1 run $2 $3 -d oracle-erc20-native yarn watcher:collected-signatures
     docker-compose $1 run $2 $3 -d oracle-erc20-native yarn watcher:affirmation-request
     docker-compose $1 run $2 $3 -d oracle-erc20-native yarn watcher:transfer
+    docker-compose $1 run $2 $3 -d oracle-erc20-native yarn watcher:half-duplex-transfer
+    docker-compose $1 run $2 $3 -d oracle-erc20-native yarn worker:swap-tokens
     docker-compose $1 run $2 $3 -d oracle-erc20-native yarn worker:convert-to-chai
     docker-compose $1 run $2 $3 -d oracle-amb yarn watcher:signature-request
     docker-compose $1 run $2 $3 -d oracle-amb yarn watcher:collected-signatures
@@ -61,6 +57,8 @@ while [ "$1" != "" ]; do
     docker-compose run -d oracle-erc20-native yarn watcher:collected-signatures
     docker-compose run -d oracle-erc20-native yarn watcher:affirmation-request
     docker-compose run -d oracle-erc20-native yarn watcher:transfer
+    docker-compose run -d oracle-erc20-native yarn watcher:half-duplex-transfer
+    docker-compose run -d oracle-erc20-native yarn worker:swap-tokens
     docker-compose run -d oracle-erc20-native yarn worker:convert-to-chai
     docker-compose run -d oracle-amb yarn watcher:signature-request
     docker-compose run -d oracle-amb yarn watcher:collected-signatures
@@ -113,6 +111,26 @@ while [ "$1" != "" ]; do
     docker-compose up -d monitor monitor-erc20 monitor-erc20-native monitor-amb
   fi
 
+  if [ "$1" == "native-to-erc" ]; then
+    ../deployment-e2e/molecule.sh ultimate-native-to-erc
+  fi
+
+  if [ "$1" == "erc-to-native" ]; then
+    ../deployment-e2e/molecule.sh ultimate-erc-to-native
+  fi
+
+  if [ "$1" == "erc-to-erc" ]; then
+    ../deployment-e2e/molecule.sh ultimate-erc-to-erc
+  fi
+
+  if [ "$1" == "amb" ]; then
+    ../deployment-e2e/molecule.sh ultimate-amb
+  fi
+
+  if [ "$1" == "ultimate-amb-stake-erc-to-erc" ]; then
+    ../deployment-e2e/molecule.sh ultimate-amb-stake-erc-to-erc
+  fi
+
   if [ "$1" == "alm-e2e" ]; then
     docker-compose up -d redis rabbit
 

monitor-e2e/package.json

@@ -4,7 +4,7 @@
   "description": "",
   "main": "index.js",
   "scripts": {
-    "start": "mocha --timeout 120000",
+    "start": "mocha --timeout 30000",
     "lint": "eslint . --ignore-path ../.eslintignore"
   },
   "author": "",

monitor-e2e/periodically-check-all.sh

@@ -1,7 +1,7 @@
 while true; do
-  sleep 5
+  sleep 3
-  docker-compose -f ../e2e-commons/docker-compose.yml exec -d monitor yarn check-all
+  COMPOSE_INTERACTIVE_NO_CLI=1 nohup docker-compose -f ../e2e-commons/docker-compose.yml exec monitor yarn check-all
-  docker-compose -f ../e2e-commons/docker-compose.yml exec -d monitor-erc20 yarn check-all
+  COMPOSE_INTERACTIVE_NO_CLI=1 nohup docker-compose -f ../e2e-commons/docker-compose.yml exec monitor-erc20 yarn check-all
-  docker-compose -f ../e2e-commons/docker-compose.yml exec -d monitor-erc20-native yarn check-all
+  COMPOSE_INTERACTIVE_NO_CLI=1 nohup docker-compose -f ../e2e-commons/docker-compose.yml exec monitor-erc20-native yarn check-all
-  docker-compose -f ../e2e-commons/docker-compose.yml exec -d monitor-amb yarn check-all
+  COMPOSE_INTERACTIVE_NO_CLI=1 nohup docker-compose -f ../e2e-commons/docker-compose.yml exec monitor-amb yarn check-all
 done

monitor-e2e/test/ercToNative.js

@@ -37,9 +37,6 @@ describe('ERC TO NATIVE with changing state of contracts', () => {
 
     await waitUntil(async () => {
       ;({ data } = await axios.get(`${baseUrl}`))
-      if (!data.foreign) {
-        return false
-      }
       const { erc20Balance, investedErc20Balance } = data.foreign
       return data.balanceDiff === 0.01 && erc20Balance === '0.01' && investedErc20Balance === undefined
     })
@@ -61,9 +58,6 @@ describe('ERC TO NATIVE with changing state of contracts', () => {
     await waitUntil(async () => {
       ;({ data } = await axios.get(`${baseUrl}`))
       const { erc20Balance, investedErc20Balance, accumulatedInterest } = data.foreign
-      if (!data.foreign) {
-        return false
-      }
       return (
         data.balanceDiff === 0.02 &&
         erc20Balance === '0.02' &&
@@ -78,9 +72,6 @@ describe('ERC TO NATIVE with changing state of contracts', () => {
     await waitUntil(async () => {
       ;({ data } = await axios.get(`${baseUrl}`))
       const { erc20Balance, investedErc20Balance, accumulatedInterest } = data.foreign
-      if (!data.foreign) {
-        return false
-      }
       return (
         data.balanceDiff === 0.02 &&
         erc20Balance === '0.01' &&
@@ -95,9 +86,6 @@ describe('ERC TO NATIVE with changing state of contracts', () => {
     await waitUntil(async () => {
       ;({ data } = await axios.get(`${baseUrl}`))
       const { erc20Balance, investedErc20Balance, accumulatedInterest } = data.foreign
-      if (!data.foreign) {
-        return false
-      }
       return (
         data.balanceDiff === 0.02 &&
         erc20Balance === '0.005' &&

monitor-e2e/utils.js

@@ -8,7 +8,7 @@ const {
 } = require('../commons')
 const { validator } = require('../e2e-commons/constants')
 
-const waitUntil = async (predicate, step = 100, timeout = 60000) => {
+const waitUntil = async (predicate, step = 100, timeout = 20000) => {
   const stopTime = Date.now() + timeout
   while (Date.now() <= stopTime) {
     const result = await predicate()

monitor-e2e/wait-for-monitor.sh

@@ -1,15 +1,13 @@
-#!/bin/bash
-
 FILES=(getBalances.json validators.json eventsStats.json alerts.json)
 
 check_files_exist() {
   rc=0
   for f in "${FILES[@]}"; do
     command="test -f responses/bridge/$f"
-    (docker-compose -f ../e2e-commons/docker-compose.yml exec -T monitor /bin/bash -c "$command") || rc=1
+    (docker-compose -f ../e2e-commons/docker-compose.yml exec monitor /bin/bash -c "$command") || rc=1
-    (docker-compose -f ../e2e-commons/docker-compose.yml exec -T monitor-erc20 /bin/bash -c "$command") || rc=1
+    (docker-compose -f ../e2e-commons/docker-compose.yml exec monitor-erc20 /bin/bash -c "$command") || rc=1
-    (docker-compose -f ../e2e-commons/docker-compose.yml exec -T monitor-erc20-native /bin/bash -c "$command") || rc=1
+    (docker-compose -f ../e2e-commons/docker-compose.yml exec monitor-erc20-native /bin/bash -c "$command") || rc=1
-    (docker-compose -f ../e2e-commons/docker-compose.yml exec -T monitor-amb /bin/bash -c "$command") || rc=1
+    (docker-compose -f ../e2e-commons/docker-compose.yml exec monitor-amb /bin/bash -c "$command") || rc=1
   done
   return $rc
 }

monitor/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:10 as contracts
+FROM node:8 as contracts
 
 WORKDIR /mono
 
@@ -11,7 +11,7 @@ COPY ./contracts/truffle-config.js ./
 COPY ./contracts/contracts ./contracts
 RUN npm run compile
 
-FROM node:10
+FROM node:8
 
 WORKDIR /mono
 COPY package.json .

monitor/docker-compose-build.yml

@@ -3,6 +3,4 @@ version: '2.4'
 services:
   monitor:
     image: poanetwork/tokenbridge-monitor
-    build:
+    build: .
-      context: ..
-      dockerfile: ./monitor/Dockerfile

monitor/validators.js

@@ -100,13 +100,8 @@ async function main(bridgeMode) {
 
   if (MONITOR_VALIDATOR_FOREIGN_TX_LIMIT) {
     logger.debug('calling foreign getGasPrices')
-    const fetchFn =
-      COMMON_FOREIGN_GAS_PRICE_SUPPLIER_URL === 'gas-price-oracle'
-        ? null
-        : () => fetch(COMMON_FOREIGN_GAS_PRICE_SUPPLIER_URL)
-
     foreignGasPrice =
-      (await gasPriceFromSupplier(fetchFn, foreignGasPriceSupplierOpts)) ||
+      (await gasPriceFromSupplier(() => fetch(COMMON_FOREIGN_GAS_PRICE_SUPPLIER_URL), foreignGasPriceSupplierOpts)) ||
       Web3Utils.toBN(COMMON_FOREIGN_GAS_PRICE_FALLBACK)
     foreignGasPriceGwei = Web3Utils.fromWei(foreignGasPrice.toString(), 'gwei')
     foreignTxCost = foreignGasPrice.mul(Web3Utils.toBN(MONITOR_VALIDATOR_FOREIGN_TX_LIMIT))

oracle-e2e/test/ercToNative.js

@@ -31,7 +31,12 @@ const foreignBridge = new foreignWeb3.eth.Contract(FOREIGN_ERC_TO_NATIVE_ABI, CO
 const homeBridge = new homeWeb3.eth.Contract(HOME_ERC_TO_NATIVE_ABI, COMMON_HOME_BRIDGE_ADDRESS)
 
 describe('erc to native', () => {
+  let halfDuplexTokenAddress
+  let halfDuplexToken
   before(async () => {
+    halfDuplexTokenAddress = await foreignBridge.methods.halfDuplexErc20token().call()
+    halfDuplexToken = new foreignWeb3.eth.Contract(ERC677_BRIDGE_TOKEN_ABI, halfDuplexTokenAddress)
+
     // Set 2 required signatures for home bridge
     await setRequiredSignatures({
       bridgeContract: homeBridge,
@@ -54,6 +59,85 @@ describe('erc to native', () => {
       }
     })
   })
+  it('should not convert half duplex tokens to native tokens in home', async () => {
+    const originalBalanceOnHome = await homeWeb3.eth.getBalance(user.address)
+
+    const transferValue = homeWeb3.utils.toWei('0.01')
+
+    // send tokens to foreign bridge
+    await halfDuplexToken.methods
+      .transfer(COMMON_FOREIGN_BRIDGE_ADDRESS, transferValue)
+      .send({
+        from: user.address,
+        gas: '1000000'
+      })
+      .catch(e => {
+        console.error(e)
+      })
+
+    // check that balance does not increases
+    await promiseRetry(async (retry, number) => {
+      const balance = await homeWeb3.eth.getBalance(user.address)
+      // retry at least 4 times to check transfer is not processed
+      if (toBN(balance).eq(toBN(originalBalanceOnHome)) && number < 4) {
+        retry()
+      } else {
+        assert(toBN(balance).eq(toBN(originalBalanceOnHome)), 'User balance should not be increased')
+      }
+    })
+
+    // send tokens to foreign bridge
+    await erc20Token.methods
+      .transfer(COMMON_FOREIGN_BRIDGE_ADDRESS, transferValue)
+      .send({
+        from: user.address,
+        gas: '1000000'
+      })
+      .catch(e => {
+        console.error(e)
+      })
+
+    // check that balance increases
+    await promiseRetry(async (retry, number) => {
+      const balance = await homeWeb3.eth.getBalance(user.address)
+      // retry at least 4 times to check transfer is not double processed by the two watchers
+      if (toBN(balance).lte(toBN(originalBalanceOnHome)) || number < 4) {
+        retry()
+      } else {
+        assert(
+          toBN(balance).eq(toBN(originalBalanceOnHome).add(toBN(transferValue))),
+          'User balance should be increased only by second transfer'
+        )
+      }
+    })
+
+    const afterTransferBalance = await homeWeb3.eth.getBalance(user.address)
+
+    // send tokens to foreign bridge
+    await erc20Token.methods
+      .transfer(COMMON_FOREIGN_BRIDGE_ADDRESS, transferValue)
+      .send({
+        from: user.address,
+        gas: '1000000'
+      })
+      .catch(e => {
+        console.error(e)
+      })
+
+    // check that balance increases
+    await promiseRetry(async (retry, number) => {
+      const balance = await homeWeb3.eth.getBalance(user.address)
+      // retry at least 4 times to check transfer is not double processed by the two watchers
+      if (toBN(balance).lte(toBN(afterTransferBalance)) || number < 4) {
+        retry()
+      } else {
+        assert(
+          toBN(balance).eq(toBN(afterTransferBalance).add(toBN(transferValue))),
+          'User balance should be increased'
+        )
+      }
+    })
+  })
   it('should convert tokens in foreign to coins in home', async () => {
     const balance = await erc20Token.methods.balanceOf(user.address).call()
     const originalBalanceOnHome = await homeWeb3.eth.getBalance(user.address)

oracle/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:10 as contracts
+FROM node:8 as contracts
 
 WORKDIR /mono
 
@@ -11,11 +11,14 @@ COPY ./contracts/truffle-config.js ./
 COPY ./contracts/contracts ./contracts
 RUN npm run compile
 
-FROM node:10
+FROM node:8
 
-RUN apt-get update && \
+RUN apt-get update
-    apt-get install -y build-essential libc6-dev libc6-dev-i386 wget && \
+RUN apt-get install -y build-essential
-    apt-get clean
+RUN apt-get install -y libc6-dev
+RUN apt-get install -y libc6-dev-i386
+RUN apt-get install -y wget
+RUN apt-get clean
 
 WORKDIR /mono
 COPY package.json .

oracle/config/affirmation-request-watcher.config.js

@@ -24,7 +24,7 @@ module.exports = {
   ...baseConfig.bridgeConfig,
   ...baseConfig.foreignConfig,
   event: 'UserRequestForAffirmation',
-  queue: 'home-prioritized',
+  queue: 'home',
   name: `watcher-${id}`,
   id
 }

oracle/config/base.config.js

@@ -73,7 +73,6 @@ const bridgeConfig = {
 }
 
 const homeConfig = {
-  chain: 'home',
   eventContractAddress: process.env.COMMON_HOME_BRIDGE_ADDRESS,
   eventAbi: homeAbi,
   bridgeContractAddress: process.env.COMMON_HOME_BRIDGE_ADDRESS,
@@ -84,7 +83,6 @@ const homeConfig = {
 }
 
 const foreignConfig = {
-  chain: 'foreign',
   eventContractAddress: process.env.COMMON_FOREIGN_BRIDGE_ADDRESS,
   eventAbi: foreignAbi,
   bridgeContractAddress: process.env.COMMON_FOREIGN_BRIDGE_ADDRESS,

oracle/config/collected-signatures-watcher.config.js

@@ -6,7 +6,7 @@ module.exports = {
   ...baseConfig.bridgeConfig,
   ...baseConfig.homeConfig,
   event: 'CollectedSignatures',
-  queue: 'foreign-prioritized',
+  queue: 'foreign',
   name: `watcher-${id}`,
   id
 }

oracle/config/convert-to-chai-worker.config.js

@@ -14,7 +14,7 @@ module.exports = {
   ...baseConfig.bridgeConfig,
   ...baseConfig.foreignConfig,
   workerQueue: 'convert-to-chai',
-  senderQueue: 'foreign-prioritized',
+  senderQueue: 'foreign',
   name: `worker-${id}`,
   id
 }

oracle/config/foreign-sender.config.js

@@ -4,8 +4,7 @@ const { web3Foreign } = require('../src/services/web3')
 
 module.exports = {
   ...baseConfig.bridgeConfig,
-  queue: 'foreign-prioritized',
+  queue: 'foreign',
-  oldQueue: 'foreign',
   id: 'foreign',
   name: 'sender-foreign',
   web3: web3Foreign

oracle/config/half-duplex-transfer-watcher.config.js

@@ -0,0 +1,39 @@
+const baseConfig = require('./base.config')
+const { ERC20_ABI } = require('../../commons')
+const { EXIT_CODES } = require('../src/utils/constants')
+
+const initialChecksJson = process.argv[3]
+
+if (!initialChecksJson) {
+  throw new Error('initial check parameter was not provided.')
+}
+
+let initialChecks
+try {
+  initialChecks = JSON.parse(initialChecksJson)
+} catch (e) {
+  throw new Error('Error on decoding values from initial checks.')
+}
+
+const id = `${baseConfig.id}-half-duplex-transfer`
+
+const transferWatcherRequired = baseConfig.id === 'erc-native'
+
+if (!transferWatcherRequired) {
+  console.error(`Transfer watcher not required for bridge mode ${process.env.ORACLE_BRIDGE_MODE}`)
+  process.exit(EXIT_CODES.WATCHER_NOT_REQUIRED)
+}
+
+module.exports = {
+  ...baseConfig.bridgeConfig,
+  ...baseConfig.foreignConfig,
+  event: 'Transfer',
+  eventContractAddress: initialChecks.halfDuplexTokenAddress,
+  eventAbi: ERC20_ABI,
+  eventFilter: { to: process.env.COMMON_FOREIGN_BRIDGE_ADDRESS },
+  queue: 'home',
+  workerQueue: 'swap-tokens',
+  name: `watcher-${id}`,
+  id,
+  idle: initialChecks.idle
+}

oracle/config/home-sender.config.js

@@ -4,8 +4,7 @@ const { web3Home } = require('../src/services/web3')
 
 module.exports = {
   ...baseConfig.bridgeConfig,
-  queue: 'home-prioritized',
+  queue: 'home',
-  oldQueue: 'home',
   id: 'home',
   name: 'sender-home',
   web3: web3Home

oracle/config/signature-request-watcher.config.js

@@ -6,7 +6,7 @@ module.exports = {
   ...baseConfig.bridgeConfig,
   ...baseConfig.homeConfig,
   event: 'UserRequestForSignature',
-  queue: 'home-prioritized',
+  queue: 'home',
   name: `watcher-${id}`,
   id
 }

oracle/config/swap-tokens-worker.config.js

@@ -0,0 +1,20 @@
+const baseConfig = require('./base.config')
+const { EXIT_CODES } = require('../src/utils/constants')
+
+const id = `${baseConfig.id}-swap-tokens`
+
+const workerRequired = baseConfig.id === 'erc-native'
+
+if (!workerRequired) {
+  console.error(`Swap tokens worker not required for bridge mode ${process.env.ORACLE_BRIDGE_MODE}`)
+  process.exit(EXIT_CODES.WATCHER_NOT_REQUIRED)
+}
+
+module.exports = {
+  ...baseConfig.bridgeConfig,
+  ...baseConfig.foreignConfig,
+  workerQueue: 'swap-tokens',
+  senderQueue: 'foreign',
+  name: `worker-${id}`,
+  id
+}

oracle/config/transfer-watcher.config.js

@@ -41,7 +41,7 @@ module.exports = {
   eventContractAddress: initialChecks.bridgeableTokenAddress,
   eventAbi: ERC20_ABI,
   eventFilter: { to: process.env.COMMON_FOREIGN_BRIDGE_ADDRESS },
-  queue: 'home-prioritized',
+  queue: 'home',
   ...workerQueueConfig,
   name: `watcher-${id}`,
   id

oracle/docker-compose-build.yml

@@ -3,6 +3,4 @@ version: '2.4'
 services:
   oracle:
     image: poanetwork/tokenbridge-oracle
-    build:
+    build: .
-      context: ..
-      dockerfile: ./oracle/Dockerfile

oracle/docker-compose-erc-native.yml

@@ -7,6 +7,8 @@ services:
       service: rabbit
     networks:
       - net_rabbit_bridge_transfer
+      - net_rabbit_bridge_half_duplex_transfer
+      - net_rabbit_bridge_swap_tokens_worker
       - net_rabbit_bridge_convert_to_chai_worker
   redis:
     extends:
@@ -14,6 +16,7 @@ services:
       service: redis
     networks:
       - net_db_bridge_transfer
+      - net_db_bridge_half_duplex_transfer
   bridge_request:
     extends:
       file: docker-compose.yml
@@ -48,6 +51,31 @@ services:
     networks:
       - net_db_bridge_transfer
       - net_rabbit_bridge_transfer
+  bridge_half_duplex_transfer:
+    cpus: 0.1
+    mem_limit: 500m
+    image: poanetwork/tokenbridge-oracle:latest
+    env_file: ./.env
+    environment:
+      - NODE_ENV=production
+      - ORACLE_VALIDATOR_ADDRESS=${ORACLE_VALIDATOR_ADDRESS}
+    restart: unless-stopped
+    entrypoint: yarn watcher:half-duplex-transfer
+    networks:
+      - net_db_bridge_half_duplex_transfer
+      - net_rabbit_bridge_half_duplex_transfer
+  bridge_swap_tokens_worker:
+    cpus: 0.1
+    mem_limit: 500m
+    image: poanetwork/tokenbridge-oracle:latest
+    env_file: ./.env
+    environment:
+      - NODE_ENV=production
+      - ORACLE_VALIDATOR_ADDRESS=${ORACLE_VALIDATOR_ADDRESS}
+    restart: unless-stopped
+    entrypoint: yarn worker:swap-tokens
+    networks:
+      - net_rabbit_bridge_swap_tokens_worker
   bridge_convert_to_chai_worker:
     cpus: 0.1
     mem_limit: 500m
@@ -84,6 +112,8 @@ networks:
     driver: bridge
   net_db_bridge_transfer:
     driver: bridge
+  net_db_bridge_half_duplex_transfer:
+    driver: bridge
   net_db_bridge_senderhome:
     driver: bridge
   net_db_bridge_senderforeign:
@@ -96,6 +126,10 @@ networks:
     driver: bridge
   net_rabbit_bridge_transfer:
     driver: bridge
+  net_rabbit_bridge_half_duplex_transfer:
+    driver: bridge
+  net_rabbit_bridge_swap_tokens_worker:
+    driver: bridge
   net_rabbit_bridge_senderhome:
     driver: bridge
   net_rabbit_bridge_senderforeign:

oracle/package.json

@@ -9,11 +9,13 @@
     "watcher:collected-signatures": "./scripts/start-worker.sh watcher collected-signatures-watcher",
     "watcher:affirmation-request": "./scripts/start-worker.sh watcher affirmation-request-watcher",
     "watcher:transfer": "./scripts/start-worker.sh watcher transfer-watcher",
+    "watcher:half-duplex-transfer": "./scripts/start-worker.sh watcher half-duplex-transfer-watcher",
+    "worker:swap-tokens": "./scripts/start-worker.sh worker swap-tokens-worker",
     "worker:convert-to-chai": "./scripts/start-worker.sh worker convert-to-chai-worker",
     "sender:home": "./scripts/start-worker.sh sender home-sender",
     "sender:foreign": "./scripts/start-worker.sh sender foreign-sender",
     "confirm:transfer": "./scripts/start-worker.sh confirmRelay transfer-watcher",
-    "dev": "concurrently -n 'watcher:signature-request,watcher:collected-signatures,watcher:affirmation-request,watcher:transfer, sender:home,sender:foreign' -c 'red,green,yellow,blue,magenta,cyan' 'yarn watcher:signature-request' 'yarn watcher:collected-signatures' 'yarn watcher:affirmation-request' 'yarn watcher:transfer' 'yarn sender:home' 'yarn sender:foreign'",
+    "dev": "concurrently -n 'watcher:signature-request,watcher:collected-signatures,watcher:affirmation-request,watcher:transfer,watcher:half-duplex-transfer, worker:swap-tokens, sender:home,sender:foreign' -c 'red,green,yellow,blue,white,gray,magenta,cyan' 'yarn watcher:signature-request' 'yarn watcher:collected-signatures' 'yarn watcher:affirmation-request' 'yarn watcher:transfer' 'yarn watcher:half-duplex-transfer' 'yarn worker:swap-tokens' 'yarn sender:home' 'yarn sender:foreign'",
     "test": "NODE_ENV=test mocha",
     "test:watch": "NODE_ENV=test mocha --watch --reporter=min",
     "coverage": "NODE_ENV=test nyc --reporter=text --reporter=html mocha",

oracle/src/confirmRelay.js

@@ -7,7 +7,7 @@ const rpcUrlsManager = require('./services/getRpcUrlsManager')
 const { getNonce, getChainId, getEventsFromTx } = require('./tx/web3')
 const { sendTx } = require('./tx/sendTx')
 const { checkHTTPS, watchdog, syncForEach, addExtraGas } = require('./utils/utils')
-const { EXIT_CODES, EXTRA_GAS_PERCENTAGE, MAX_GAS_LIMIT } = require('./utils/constants')
+const { EXIT_CODES, EXTRA_GAS_PERCENTAGE } = require('./utils/constants')
 
 const { ORACLE_VALIDATOR_ADDRESS, ORACLE_VALIDATOR_ADDRESS_PRIVATE_KEY, ORACLE_ALLOW_HTTP_FOR_RPC } = process.env
 
@@ -138,22 +138,17 @@ async function main({ sendJob, txHash }) {
 }
 
 async function sendJobTx(jobs) {
-  const gasPrice = await GasPrice.start(config.chain, true)
+  const gasPrice = await GasPrice.start(config.queue, true)
-  const chainId = await getChainId(config.chain)
+  const chainId = await getChainId(config.queue)
   let nonce = await getNonce(web3Instance, ORACLE_VALIDATOR_ADDRESS)
 
   await syncForEach(jobs, async job => {
-    let gasLimit
+    const gasLimit = addExtraGas(job.gasEstimate, EXTRA_GAS_PERCENTAGE)
-    if (typeof job.extraGas === 'number') {
-      gasLimit = addExtraGas(job.gasEstimate + job.extraGas, 0, MAX_GAS_LIMIT)
-    } else {
-      gasLimit = addExtraGas(job.gasEstimate, EXTRA_GAS_PERCENTAGE, MAX_GAS_LIMIT)
-    }
 
     try {
       logger.info(`Sending transaction with nonce ${nonce}`)
       const txHash = await sendTx({
-        chain: config.chain,
+        chain: config.queue,
         data: job.data,
         nonce,
         gasPrice: gasPrice.toString(10),

oracle/src/events/processAMBAffirmationRequests/estimateGas.js

@@ -4,11 +4,6 @@ const logger = require('../../services/logger').child({
   module: 'processAffirmationRequests:estimateGas'
 })
 const { parseAMBHeader } = require('../../utils/message')
-const { strip0x } = require('../../../../commons')
-const {
-  AMB_AFFIRMATION_REQUEST_EXTRA_GAS_ESTIMATOR: estimateExtraGas,
-  MIN_AMB_HEADER_LENGTH
-} = require('../../utils/constants')
 
 async function estimateGas({ web3, homeBridge, validatorContract, message, address }) {
   try {
@@ -16,10 +11,10 @@ async function estimateGas({ web3, homeBridge, validatorContract, message, addre
       from: address
     })
     const msgGasLimit = parseAMBHeader(message).gasLimit
-    // message length in bytes
-    const len = strip0x(message).length / 2 - MIN_AMB_HEADER_LENGTH
 
-    return gasEstimate + msgGasLimit + estimateExtraGas(len)
+    logger.info({ gasEstimate, msgGasLimit }, 'Gas consumption parameters')
+
+    return gasEstimate + msgGasLimit + ( message.length * 32 )
   } catch (e) {
     if (e instanceof HttpListProviderError) {
       throw e

oracle/src/events/processAMBAffirmationRequests/index.js

@@ -4,7 +4,7 @@ const promiseLimit = require('promise-limit')
 const rootLogger = require('../../services/logger')
 const { web3Home } = require('../../services/web3')
 const bridgeValidatorsABI = require('../../../../contracts/build/contracts/BridgeValidators').abi
-const { EXIT_CODES, MAX_CONCURRENT_EVENTS, EXTRA_GAS_ABSOLUTE } = require('../../utils/constants')
+const { EXIT_CODES, MAX_CONCURRENT_EVENTS } = require('../../utils/constants')
 const estimateGas = require('./estimateGas')
 const { parseAMBMessage } = require('../../../../commons')
 const { AlreadyProcessedError, AlreadySignedError, InvalidValidatorError } = require('../../utils/errors')
@@ -75,7 +75,6 @@ function processAffirmationRequestsBuilder(config) {
         txToSend.push({
           data,
           gasEstimate,
-          extraGas: EXTRA_GAS_ABSOLUTE,
           transactionReference: affirmationRequest.transactionHash,
           to: config.homeBridgeAddress
         })

oracle/src/events/processAMBCollectedSignatures/estimateGas.js

@@ -27,10 +27,9 @@ async function estimateGas({
     })
     const msgGasLimit = parseAMBHeader(message).gasLimit
 
-    // + estimateExtraGas(len)
+    logger.info({ gasEstimate, msgGasLimit }, 'Gas consumption parameters')
-    // is not needed here, since estimateGas will already take into account gas
+
-    // needed for memory expansion, message processing, etc.
+    return gasEstimate + msgGasLimit + ( message.length * 32 )
-    return gasEstimate + msgGasLimit
   } catch (e) {
     if (e instanceof HttpListProviderError) {
       throw e

oracle/src/events/processAMBCollectedSignatures/index.js

@@ -8,7 +8,7 @@ const { signatureToVRS, packSignatures } = require('../../utils/message')
 const { parseAMBMessage } = require('../../../../commons')
 const estimateGas = require('./estimateGas')
 const { AlreadyProcessedError, IncompatibleContractError, InvalidValidatorError } = require('../../utils/errors')
-const { MAX_CONCURRENT_EVENTS, EXTRA_GAS_ABSOLUTE } = require('../../utils/constants')
+const { MAX_CONCURRENT_EVENTS } = require('../../utils/constants')
 
 const limit = promiseLimit(MAX_CONCURRENT_EVENTS)
 
@@ -107,7 +107,6 @@ function processCollectedSignaturesBuilder(config) {
         txToSend.push({
           data,
           gasEstimate,
-          extraGas: EXTRA_GAS_ABSOLUTE,
           transactionReference: colSignature.transactionHash,
           to: config.foreignBridgeAddress
         })

oracle/src/events/processHalfDuplexTransfers/index.js

@@ -0,0 +1,134 @@
+require('../../../env')
+const promiseLimit = require('promise-limit')
+const { HttpListProviderError } = require('http-list-provider')
+const { BRIDGE_VALIDATORS_ABI, ZERO_ADDRESS } = require('../../../../commons')
+const rootLogger = require('../../services/logger')
+const { web3Home, web3Foreign } = require('../../services/web3')
+const { AlreadyProcessedError, AlreadySignedError, InvalidValidatorError } = require('../../utils/errors')
+const { EXIT_CODES, MAX_CONCURRENT_EVENTS } = require('../../utils/constants')
+const estimateGas = require('../processAffirmationRequests/estimateGas')
+
+const limit = promiseLimit(MAX_CONCURRENT_EVENTS)
+
+let validatorContract = null
+
+function processTransfersBuilder(config) {
+  const homeBridge = new web3Home.eth.Contract(config.homeBridgeAbi, config.homeBridgeAddress)
+  const foreignBridge = new web3Foreign.eth.Contract(config.foreignBridgeAbi, config.foreignBridgeAddress)
+  const userRequestForAffirmationAbi = config.foreignBridgeAbi.filter(
+    e => e.type === 'event' && e.name === 'UserRequestForAffirmation'
+  )[0]
+  const tokensSwappedAbi = config.foreignBridgeAbi.filter(e => e.type === 'event' && e.name === 'TokensSwapped')[0]
+  const userRequestForAffirmationHash = web3Home.eth.abi.encodeEventSignature(userRequestForAffirmationAbi)
+  const tokensSwappedHash = tokensSwappedAbi ? web3Home.eth.abi.encodeEventSignature(tokensSwappedAbi) : '0x'
+
+  return async function processTransfers(transfers, blockNumber) {
+    const txToSend = []
+
+    if (validatorContract === null) {
+      rootLogger.debug('Getting validator contract address')
+      const validatorContractAddress = await homeBridge.methods.validatorContract().call()
+      rootLogger.debug({ validatorContractAddress }, 'Validator contract address obtained')
+
+      validatorContract = new web3Home.eth.Contract(BRIDGE_VALIDATORS_ABI, validatorContractAddress)
+    }
+
+    rootLogger.debug(`Processing ${transfers.length} Transfer events`)
+    const callbacks = transfers
+      .map(transfer => async () => {
+        const { from, value } = transfer.returnValues
+
+        const logger = rootLogger.child({
+          eventTransactionHash: transfer.transactionHash
+        })
+
+        logger.info({ from, value }, `Processing transfer ${transfer.transactionHash}`)
+
+        const block = await web3Foreign.eth.getBlock(blockNumber)
+        logger.debug({ blockNumber, timestamp: block.timestamp }, `Block obtained`)
+
+        const tokenSwapAllowed = await foreignBridge.methods.isTokenSwapAllowed(block.timestamp).call()
+
+        if (!tokenSwapAllowed) {
+          logger.info(
+            `Transfer event discarded because SCD Emergency Shutdown has happened ${transfer.transactionHash}`
+          )
+          return
+        }
+
+        const receipt = await web3Foreign.eth.getTransactionReceipt(transfer.transactionHash)
+
+        const existsAffirmationEvent = receipt.logs.some(
+          e => e.address === config.foreignBridgeAddress && e.topics[0] === userRequestForAffirmationHash
+        )
+
+        if (existsAffirmationEvent) {
+          logger.info(
+            `Transfer event discarded because a transaction with alternative receiver detected in transaction ${
+              transfer.transactionHash
+            }`
+          )
+          return
+        }
+
+        const existsTokensSwappedEvent = tokensSwappedAbi
+          ? receipt.logs.some(e => e.address === config.foreignBridgeAddress && e.topics[0] === tokensSwappedHash)
+          : false
+
+        if (from === ZERO_ADDRESS && existsTokensSwappedEvent) {
+          logger.info(
+            `Transfer event discarded because token swap is detected in transaction ${transfer.transactionHash}`
+          )
+          return
+        }
+
+        let gasEstimate
+        try {
+          logger.debug('Estimate gas')
+          gasEstimate = await estimateGas({
+            web3: web3Home,
+            homeBridge,
+            validatorContract,
+            recipient: from,
+            value,
+            txHash: transfer.transactionHash,
+            address: config.validatorAddress
+          })
+          logger.debug({ gasEstimate }, 'Gas estimated')
+        } catch (e) {
+          if (e instanceof HttpListProviderError) {
+            throw new Error('RPC Connection Error: submitSignature Gas Estimate cannot be obtained.')
+          } else if (e instanceof InvalidValidatorError) {
+            logger.fatal({ address: config.validatorAddress }, 'Invalid validator')
+            process.exit(EXIT_CODES.INCOMPATIBILITY)
+          } else if (e instanceof AlreadySignedError) {
+            logger.info(`Already signed transfer ${transfer.transactionHash}`)
+            return
+          } else if (e instanceof AlreadyProcessedError) {
+            logger.info(`transfer ${transfer.transactionHash} was already processed by other validators`)
+            return
+          } else {
+            logger.error(e, 'Unknown error while processing transaction')
+            throw e
+          }
+        }
+
+        const data = await homeBridge.methods
+          .executeAffirmation(from, value, transfer.transactionHash)
+          .encodeABI({ from: config.validatorAddress })
+
+        txToSend.push({
+          data,
+          gasEstimate,
+          transactionReference: transfer.transactionHash,
+          to: config.homeBridgeAddress
+        })
+      })
+      .map(promise => limit(promise))
+
+    await Promise.all(callbacks)
+    return txToSend
+  }
+}
+
+module.exports = processTransfersBuilder

oracle/src/sender.js

@@ -1,6 +1,5 @@
 require('../env')
 const path = require('path')
-const { toBN } = require('web3-utils')
 const { connectSenderToQueue } = require('./services/amqpClient')
 const { redis } = require('./services/redisClient')
 const GasPrice = require('./services/gasPrice')
@@ -17,7 +16,7 @@ const {
   watchdog,
   nonceError
 } = require('./utils/utils')
-const { EXIT_CODES, EXTRA_GAS_PERCENTAGE, MAX_GAS_LIMIT } = require('./utils/constants')
+const { EXIT_CODES, EXTRA_GAS_ABSOLUTE } = require('./utils/constants')
 
 const { ORACLE_VALIDATOR_ADDRESS_PRIVATE_KEY } = process.env
 
@@ -46,7 +45,6 @@ async function initialize() {
     chainId = await getChainId(config.id)
     connectSenderToQueue({
       queueName: config.queue,
-      oldQueueName: config.oldQueue,
       cb: options => {
         if (config.maxProcessingTime) {
           return watchdog(() => main(options), config.maxProcessingTime, () => {
@@ -90,7 +88,7 @@ function updateNonce(nonce) {
   return redis.set(nonceKey, nonce)
 }
 
-async function main({ msg, ackMsg, nackMsg, channel, scheduleForRetry, scheduleTransactionResend }) {
+async function main({ msg, ackMsg, nackMsg, channel, scheduleForRetry }) {
   try {
     if (redis.status !== 'ready') {
       nackMsg(msg)
@@ -105,55 +103,17 @@ async function main({ msg, ackMsg, nackMsg, channel, scheduleForRetry, scheduleT
     let insufficientFunds = false
     let minimumBalance = null
     const failedTx = []
-    const sentTx = []
 
-    const isResend = txArray.length > 0 && !!txArray[0].txHash
+    logger.debug(`Sending ${txArray.length} transactions`)
-
-    if (isResend) {
-      logger.debug(`Checking status of ${txArray.length} transactions`)
-    } else {
-      logger.debug(`Sending ${txArray.length} transactions`)
-    }
     await syncForEach(txArray, async job => {
-      let gasLimit
+      const gasLimit = addExtraGas(job.gasEstimate, EXTRA_GAS_ABSOLUTE, logger)
-      if (typeof job.extraGas === 'number') {
-        gasLimit = addExtraGas(job.gasEstimate + job.extraGas, 0, MAX_GAS_LIMIT)
-      } else {
-        gasLimit = addExtraGas(job.gasEstimate, EXTRA_GAS_PERCENTAGE, MAX_GAS_LIMIT)
-      }
 
       try {
-        let txNonce
+        logger.info(`Sending transaction with nonce ${nonce}`)
-        if (isResend) {
-          const tx = await web3Instance.eth.getTransaction(job.txHash)
-
-          if (tx === null) {
-            logger.info(`Transaction ${job.txHash} was not found, dropping it`)
-            return
-          }
-          if (tx.blockNumber !== null) {
-            logger.info(`Transaction ${job.txHash} was successfully mined`)
-            return
-          }
-
-          logger.info(
-            `Previously sent transaction is stuck, updating gasPrice: ${tx.gasPrice} -> ${gasPrice.toString(10)}`
-          )
-          if (toBN(tx.gasPrice).gte(toBN(gasPrice))) {
-            logger.info("Gas price returned from the oracle didn't increase, will reinspect this transaction later")
-            sentTx.push(job)
-            return
-          }
-
-          txNonce = tx.nonce
-        } else {
-          txNonce = nonce++
-        }
-        logger.info(`Sending transaction with nonce ${txNonce}`)
         const txHash = await sendTx({
           chain: config.id,
           data: job.data,
-          nonce: txNonce,
+          nonce,
           gasPrice: gasPrice.toString(10),
           amount: '0',
           gasLimit,
@@ -162,11 +122,8 @@ async function main({ msg, ackMsg, nackMsg, channel, scheduleForRetry, scheduleT
           chainId,
           web3: web3Instance
         })
-        sentTx.push({
-          ...job,
-          txHash
-        })
 
+        nonce++
         logger.info(
           { eventTransactionHash: job.transactionReference, generatedTransactionHash: txHash },
           `Tx generated ${txHash} for event Tx ${job.transactionReference}`
@@ -201,10 +158,6 @@ async function main({ msg, ackMsg, nackMsg, channel, scheduleForRetry, scheduleT
       logger.info(`Sending ${failedTx.length} Failed Tx to Queue`)
       await scheduleForRetry(failedTx, msg.properties.headers['x-retries'])
     }
-    if (sentTx.length) {
-      logger.info(`Sending ${sentTx.length} Tx Delayed Resend Requests to Queue`)
-      await scheduleTransactionResend(sentTx)
-    }
     ackMsg(msg)
     logger.debug(`Finished processing msg`)
 

oracle/src/services/RpcUrlsManager.js

@@ -11,8 +11,8 @@ function RpcUrlsManager(homeUrls, foreignUrls) {
     throw new Error(`Invalid foreignUrls: '${foreignUrls}'`)
   }
 
-  this.homeUrls = homeUrls.split(' ')
+  this.homeUrls = homeUrls.split(',')
-  this.foreignUrls = foreignUrls.split(' ')
+  this.foreignUrls = foreignUrls.split(',')
 }
 
 RpcUrlsManager.prototype.tryEach = async function(chain, f, redundant = false) {

oracle/src/services/amqpClient.js

@@ -4,12 +4,6 @@ const dns = require('dns')
 const connection = require('amqp-connection-manager').connect(process.env.ORACLE_QUEUE_URL)
 const logger = require('./logger')
 const { getRetrySequence } = require('../utils/utils')
-const {
-  TRANSACTION_RESEND_TIMEOUT,
-  SENDER_QUEUE_MAX_PRIORITY,
-  SENDER_QUEUE_SEND_PRIORITY,
-  SENDER_QUEUE_CHECK_STATUS_PRIORITY
-} = require('../utils/constants')
 
 connection.on('connect', () => {
   logger.info('Connected to amqp Broker')
@@ -28,18 +22,16 @@ async function isAttached() {
 }
 
 function connectWatcherToQueue({ queueName, workerQueue, cb }) {
+  const queueList = workerQueue ? [queueName, workerQueue] : [queueName]
+
   const channelWrapper = connection.createChannel({
     json: true,
-    async setup(channel) {
+    setup(channel) {
-      await channel.assertQueue(queueName, { durable: true, maxPriority: SENDER_QUEUE_MAX_PRIORITY })
+      return Promise.all(queueList.map(queue => channel.assertQueue(queue, { durable: true })))
-      if (workerQueue) {
-        await channel.assertQueue(workerQueue, { durable: true })
-      }
     }
   })
 
-  const sendToQueue = data =>
+  const sendToQueue = data => channelWrapper.sendToQueue(queueName, data, { persistent: true })
-    channelWrapper.sendToQueue(queueName, data, { persistent: true, priority: SENDER_QUEUE_SEND_PRIORITY })
   let sendToWorker
   if (workerQueue) {
     sendToWorker = data => channelWrapper.sendToQueue(workerQueue, data, { persistent: true })
@@ -48,60 +40,38 @@ function connectWatcherToQueue({ queueName, workerQueue, cb }) {
   cb({ sendToQueue, sendToWorker, channel: channelWrapper })
 }
 
-function connectSenderToQueue({ queueName, oldQueueName, cb }) {
+function connectSenderToQueue({ queueName, cb }) {
   const deadLetterExchange = `${queueName}-retry`
 
-  async function resendMessagesToNewQueue(channel) {
-    logger.info(`Trying to check messages in the old non-priority queue ${queueName}`)
-    while (true) {
-      const msg = await channel.get(oldQueueName)
-      if (msg === false) {
-        logger.info(`No messages in the old queue ${oldQueueName} left`)
-        break
-      }
-      logger.debug(`Message in the old queue ${oldQueueName} was found, redirecting it to the new queue ${queueName}`)
-      await channel.sendToQueue(queueName, msg.content, { persistent: true, priority: SENDER_QUEUE_SEND_PRIORITY })
-      await channel.ack(msg)
-    }
-  }
-
   const channelWrapper = connection.createChannel({
     json: true
   })
 
-  channelWrapper.addSetup(async channel => {
+  channelWrapper.addSetup(channel => {
-    await channel.assertExchange(deadLetterExchange, 'fanout', { durable: true })
+    return Promise.all([
-    await channel.assertQueue(queueName, { durable: true, maxPriority: SENDER_QUEUE_MAX_PRIORITY })
+      channel.assertExchange(deadLetterExchange, 'fanout', { durable: true }),
-    await channel.assertQueue(oldQueueName, { durable: true }).then(() => resendMessagesToNewQueue(channel))
+      channel.assertQueue(queueName, { durable: true }),
-    await channel.bindQueue(queueName, deadLetterExchange)
+      channel.bindQueue(queueName, deadLetterExchange),
-    await channel.prefetch(1)
+      channel.prefetch(1),
-    await channel.consume(queueName, msg =>
+      channel.consume(queueName, msg =>
-      cb({
+        cb({
-        msg,
+          msg,
-        channel: channelWrapper,
+          channel: channelWrapper,
-        ackMsg: job => channelWrapper.ack(job),
+          ackMsg: job => channelWrapper.ack(job),
-        nackMsg: job => channelWrapper.nack(job, false, true),
+          nackMsg: job => channelWrapper.nack(job, false, true),
-        scheduleForRetry: async (data, msgRetries = 0) => {
+          scheduleForRetry: async (data, msgRetries = 0) => {
-          await generateRetry({
+            await generateRetry({
-            data,
+              data,
-            msgRetries,
+              msgRetries,
-            channelWrapper,
+              channelWrapper,
-            channel,
+              channel,
-            queueName,
+              queueName,
-            deadLetterExchange
+              deadLetterExchange
-          })
+            })
-        },
+          }
-        scheduleTransactionResend: async data => {
+        })
-          await generateTransactionResend({
+      )
-            data,
+    ])
-            channelWrapper,
-            channel,
-            queueName,
-            deadLetterExchange
-          })
-        }
-      })
-    )
   })
 }
 
@@ -112,73 +82,52 @@ function connectWorkerToQueue({ queueName, senderQueue, cb }) {
     json: true
   })
 
-  channelWrapper.addSetup(async channel => {
+  channelWrapper.addSetup(channel => {
-    await channel.assertExchange(deadLetterExchange, 'fanout', { durable: true })
+    return Promise.all([
-    await channel.assertQueue(queueName, { durable: true })
+      channel.assertExchange(deadLetterExchange, 'fanout', { durable: true }),
-    await channel.assertQueue(senderQueue, { durable: true, maxPriority: SENDER_QUEUE_MAX_PRIORITY })
+      channel.assertQueue(queueName, { durable: true }),
-    await channel.bindQueue(queueName, deadLetterExchange)
+      channel.assertQueue(senderQueue, { durable: true }),
-    await channel.prefetch(1)
+      channel.bindQueue(queueName, deadLetterExchange),
-    await channel.consume(queueName, msg =>
+      channel.prefetch(1),
-      cb({
+      channel.consume(queueName, msg =>
-        msg,
+        cb({
-        channel: channelWrapper,
+          msg,
-        ackMsg: job => channelWrapper.ack(job),
+          channel: channelWrapper,
-        nackMsg: job => channelWrapper.nack(job, false, true),
+          ackMsg: job => channelWrapper.ack(job),
-        sendToSenderQueue: data =>
+          nackMsg: job => channelWrapper.nack(job, false, true),
-          channelWrapper.sendToQueue(senderQueue, data, { persistent: true, priority: SENDER_QUEUE_SEND_PRIORITY }),
+          sendToSenderQueue: data => channelWrapper.sendToQueue(senderQueue, data, { persistent: true }),
-        scheduleForRetry: async (data, msgRetries = 0) => {
+          scheduleForRetry: async (data, msgRetries = 0) => {
-          await generateRetry({
+            await generateRetry({
-            data,
+              data,
-            msgRetries,
+              msgRetries,
-            channelWrapper,
+              channelWrapper,
-            channel,
+              channel,
-            queueName,
+              queueName,
-            deadLetterExchange
+              deadLetterExchange
-          })
+            })
-        }
+          }
-      })
+        })
-    )
+      )
+    ])
   })
 }
 
 async function generateRetry({ data, msgRetries, channelWrapper, channel, queueName, deadLetterExchange }) {
   const retries = msgRetries + 1
   const delay = getRetrySequence(retries) * 1000
-
-  // New retry queue is created, and one message is send to it.
-  // Nobody consumes messages from this queue, so eventually the message will be dropped.
-  // `messageTtl` defines a timeout after which the message will be dropped out of the queue.
-  // When message is dropped, it will be resend into the specified `deadLetterExchange` with the updated `x-retries` header.
   const retryQueue = `${queueName}-retry-${delay}`
   await channel.assertQueue(retryQueue, {
     durable: true,
     deadLetterExchange,
     messageTtl: delay,
-    expires: delay * 10,
+    expires: delay * 10
-    maxPriority: SENDER_QUEUE_MAX_PRIORITY
   })
   await channelWrapper.sendToQueue(retryQueue, data, {
     persistent: true,
-    priority: SENDER_QUEUE_SEND_PRIORITY,
     headers: { 'x-retries': retries }
   })
 }
 
-async function generateTransactionResend({ data, channelWrapper, channel, queueName, deadLetterExchange }) {
-  const retryQueue = `${queueName}-check-tx-status`
-  await channel.assertQueue(retryQueue, {
-    durable: true,
-    deadLetterExchange,
-    messageTtl: TRANSACTION_RESEND_TIMEOUT,
-    expires: TRANSACTION_RESEND_TIMEOUT * 10,
-    maxPriority: SENDER_QUEUE_MAX_PRIORITY
-  })
-  await channelWrapper.sendToQueue(retryQueue, data, {
-    priority: SENDER_QUEUE_CHECK_STATUS_PRIORITY,
-    persistent: true
-  })
-}
-
 module.exports = {
   isAttached,
   connectWatcherToQueue,

oracle/src/services/gasPrice.js

@@ -73,14 +73,13 @@ async function start(chainId, fetchOnce) {
     throw new Error(`Unrecognized chainId '${chainId}'`)
   }
 
-  const fetchFn = gasPriceSupplierUrl === 'gas-price-oracle' ? null : () => fetch(gasPriceSupplierUrl)
   if (fetchOnce) {
-    await fetchGasPrice(speedType, factor, bridgeContract, fetchFn)
+    await fetchGasPrice(speedType, factor, bridgeContract, () => fetch(gasPriceSupplierUrl))
     return getPrice()
   }
 
   fetchGasPriceInterval = setIntervalAndRun(
-    () => fetchGasPrice(speedType, factor, bridgeContract, fetchFn),
+    () => fetchGasPrice(speedType, factor, bridgeContract, () => fetch(gasPriceSupplierUrl)),
     updateInterval
   )
   return null

oracle/src/utils/constants.js

@@ -1,9 +1,6 @@
 module.exports = {
-  EXTRA_GAS_PERCENTAGE: 4,
+  EXTRA_GAS_PERCENTAGE: 2,
-  EXTRA_GAS_ABSOLUTE: 200000,
+  EXTRA_GAS_ABSOLUTE: 500000,
-  AMB_AFFIRMATION_REQUEST_EXTRA_GAS_ESTIMATOR: len => Math.floor(0.0035 * len ** 2 + 40 * len),
-  MIN_AMB_HEADER_LENGTH: 32 + 20 + 20 + 4 + 2 + 1 + 2,
-  MAX_GAS_LIMIT: 10000000,
   MAX_CONCURRENT_EVENTS: 50,
   RETRY_CONFIG: {
     retries: 20,
@@ -22,9 +19,5 @@ module.exports = {
   GAS_PRICE_BOUNDARIES: {
     MIN: 1,
     MAX: 250
-  },
+  }
-  TRANSACTION_RESEND_TIMEOUT: 20 * 60 * 1000,
-  SENDER_QUEUE_MAX_PRIORITY: 10,
-  SENDER_QUEUE_SEND_PRIORITY: 5,
-  SENDER_QUEUE_CHECK_STATUS_PRIORITY: 1
 }

oracle/src/utils/tokenState.js

@@ -8,6 +8,21 @@ async function getTokensState(bridgeContract, logger) {
     throw new Error(`Bridgeable token address cannot be obtained`)
   }
 
+  try {
+    logger.debug('Getting Half Duplex token address')
+    const halfDuplexErc20tokenAddress = await bridgeContract.methods.halfDuplexErc20token().call()
+    logger.debug({ address: halfDuplexErc20tokenAddress }, 'Half Duplex token address obtained')
+    if (halfDuplexErc20tokenAddress !== context.bridgeableTokenAddress) {
+      context.halfDuplexTokenAddress = halfDuplexErc20tokenAddress
+    } else {
+      logger.info('Migration to support two tokens was not applied')
+      context.idle = true
+    }
+  } catch (e) {
+    logger.info('Old version of contracts is used')
+    context.idle = true
+  }
+
   return context
 }
 

oracle/src/utils/utils.js

@@ -33,7 +33,7 @@ async function waitForFunds(web3, address, minimumBalance, cb, logger) {
     async retry => {
       logger.debug('Getting balance of validator account')
       const newBalance = web3.utils.toBN(await web3.eth.getBalance(address))
-      if (newBalance.gte(web3.utils.toBN(minimumBalance.toString(10)))) {
+      if (newBalance.gte(minimumBalance)) {
         logger.debug({ balance: newBalance, minimumBalance }, 'Validator has minimum necessary balance')
         cb(newBalance)
       } else {
@@ -48,13 +48,13 @@ async function waitForFunds(web3, address, minimumBalance, cb, logger) {
   )
 }
 
-function addExtraGas(gas, extraPercentage, maxGasLimit = Infinity) {
+function addExtraGas(gas, extra, logger) {
   gas = BigNumber(gas)
-  extraPercentage = BigNumber(1 + extraPercentage)
+  const gasWithExtra = gas.plus(extra).toFixed(0)
 
-  const gasWithExtra = gas.multipliedBy(extraPercentage).toFixed(0)
+  logger.info({ gasEstimated: gasWithExtra }, 'Gas Limit used')
 
-  return BigNumber.min(maxGasLimit, gasWithExtra)
+  return BigNumber(gasWithExtra)
 }
 
 function setIntervalAndRun(f, interval) {

oracle/src/watcher.js

@@ -22,6 +22,7 @@ const processSignatureRequests = require('./events/processSignatureRequests')(co
 const processCollectedSignatures = require('./events/processCollectedSignatures')(config)
 const processAffirmationRequests = require('./events/processAffirmationRequests')(config)
 const processTransfers = require('./events/processTransfers')(config)
+const processHalfDuplexTransfers = require('./events/processHalfDuplexTransfers')(config)
 const processAMBSignatureRequests = require('./events/processAMBSignatureRequests')(config)
 const processAMBCollectedSignatures = require('./events/processAMBCollectedSignatures')(config)
 const processAMBAffirmationRequests = require('./events/processAMBAffirmationRequests')(config)
@@ -35,6 +36,7 @@ const web3Instance = config.web3
 const bridgeContract = new web3Instance.eth.Contract(config.bridgeAbi, config.bridgeContractAddress)
 let { eventContractAddress } = config
 let eventContract = new web3Instance.eth.Contract(config.eventAbi, eventContractAddress)
+let skipEvents = config.idle
 const lastBlockRedisKey = `${config.id}:lastProcessedBlock`
 let lastProcessedBlock = BN.max(config.startBlock.sub(ONE), ZERO)
 
@@ -89,7 +91,7 @@ function updateLastProcessedBlock(lastBlockNumber) {
   return redis.set(lastBlockRedisKey, lastProcessedBlock.toString())
 }
 
-function processEvents(events) {
+function processEvents(events, blockNumber) {
   switch (config.id) {
     case 'native-erc-signature-request':
     case 'erc-erc-signature-request':
@@ -107,6 +109,8 @@ function processEvents(events) {
     case 'erc-erc-transfer':
     case 'erc-native-transfer':
       return processTransfers(events)
+    case 'erc-native-half-duplex-transfer':
+      return processHalfDuplexTransfers(events, blockNumber)
     case 'amb-signature-request':
       return processAMBSignatureRequests(events)
     case 'amb-collected-signatures':
@@ -126,6 +130,12 @@ async function checkConditions() {
       state = await getTokensState(bridgeContract, logger)
       updateEventContract(state.bridgeableTokenAddress)
       break
+    case 'erc-native-half-duplex-transfer':
+      logger.debug('Getting Half Duplex token address to listen Transfer events')
+      state = await getTokensState(bridgeContract, logger)
+      skipEvents = state.idle
+      updateEventContract(state.halfDuplexTokenAddress)
+      break
     default:
   }
 }
@@ -161,6 +171,11 @@ async function main({ sendToQueue, sendToWorker }) {
   try {
     await checkConditions()
 
+    if (skipEvents) {
+      logger.debug('Watcher in idle mode, skipping getting events')
+      return
+    }
+
     const lastBlockToProcess = await getLastBlockToProcess()
 
     if (lastBlockToProcess.lte(lastProcessedBlock)) {
@@ -185,7 +200,7 @@ async function main({ sendToQueue, sendToWorker }) {
         await sendToWorker({ blockNumber: toBlock.toString() })
       }
 
-      const job = await processEvents(events)
+      const job = await processEvents(events, toBlock.toString())
       logger.info('Transactions to send:', job.length)
 
       if (job.length) {

oracle/src/worker.js

@@ -7,6 +7,7 @@ const { connectWorkerToQueue } = require('./services/amqpClient')
 
 const config = require(path.join('../config/', process.argv[2]))
 
+const swapTokens = require('./workers/swapTokens')(config)
 const convertToChai = require('./workers/convertToChai')(config)
 
 async function initialize() {
@@ -37,7 +38,9 @@ async function initialize() {
 }
 
 async function run(blockNumber) {
-  if (config.id === 'erc-native-convert-to-chai') {
+  if (config.id === 'erc-native-swap-tokens') {
+    return swapTokens(blockNumber)
+  } else if (config.id === 'erc-native-convert-to-chai') {
     return convertToChai(blockNumber)
   } else {
     return []

oracle/src/workers/swapTokens.js

@@ -0,0 +1,111 @@
+require('../../env')
+const { HttpListProviderError } = require('http-list-provider')
+const rootLogger = require('../services/logger')
+const { web3Foreign } = require('../services/web3')
+
+const { BRIDGE_VALIDATORS_ABI, ERC20_ABI } = require('../../../commons')
+
+let validatorContract = null
+let halfDuplexTokenContract = null
+
+function swapTokensBuilder(config) {
+  const foreignBridge = new web3Foreign.eth.Contract(config.foreignBridgeAbi, config.foreignBridgeAddress)
+
+  return async function swapTokens(blockNumber) {
+    const txToSend = []
+
+    const logger = rootLogger.child({
+      blockNumber: blockNumber.toString()
+    })
+
+    logger.debug(`Starting swap tokens operation`)
+
+    if (validatorContract === null) {
+      logger.debug('Getting validator contract address')
+      const validatorContractAddress = await foreignBridge.methods.validatorContract().call()
+      logger.debug({ validatorContractAddress }, 'Validator contract address obtained')
+
+      validatorContract = new web3Foreign.eth.Contract(BRIDGE_VALIDATORS_ABI, validatorContractAddress)
+    }
+
+    logger.debug(`Checking if is validator duty`)
+    const validatorDuty = await validatorContract.methods.isValidatorDuty(config.validatorAddress).call()
+
+    if (!validatorDuty) {
+      logger.info(`Token swap discarded because is not validator duty`)
+      return txToSend
+    }
+
+    logger.debug(`Checking if half duplex token balance is above the threshold`)
+    const hdTokenBalanceAboveMinBalance = await foreignBridge.methods.isHDTokenBalanceAboveMinBalance().call()
+
+    if (!hdTokenBalanceAboveMinBalance) {
+      logger.info(`Token swap discarded because half duplex balance is below the threshold`)
+      return txToSend
+    }
+
+    const block = await web3Foreign.eth.getBlock(blockNumber)
+    logger.debug({ timestamp: block.timestamp }, `Block obtained`)
+
+    logger.debug(`Checking if SCD Emergency Shutdown has happened`)
+    const tokenSwapAllowed = await foreignBridge.methods.isTokenSwapAllowed(block.timestamp).call()
+
+    if (!tokenSwapAllowed) {
+      logger.info(`Token swap discarded because SCD Emergency Shutdown has happened`)
+      return txToSend
+    }
+
+    let gasEstimate
+
+    try {
+      logger.debug(`Estimate gas`)
+      gasEstimate = await foreignBridge.methods.swapTokens().estimateGas({
+        from: config.validatorAddress
+      })
+
+      logger.debug({ gasEstimate }, 'Gas estimated')
+    } catch (e) {
+      if (e instanceof HttpListProviderError) {
+        const errorMsg = 'RPC Connection Error: swapTokens Gas Estimate cannot be obtained.'
+        logger.error(e, errorMsg)
+        throw new Error(errorMsg)
+      } else {
+        if (halfDuplexTokenContract === null) {
+          logger.debug('Getting half duplex token contract address')
+          const halfDuplexErc20Token = await foreignBridge.methods.halfDuplexErc20token().call()
+          logger.debug({ halfDuplexErc20Token }, 'Half duplex token contract address obtained')
+
+          halfDuplexTokenContract = new web3Foreign.eth.Contract(ERC20_ABI, halfDuplexErc20Token)
+        }
+
+        const balance = web3Foreign.utils.toBN(
+          await halfDuplexTokenContract.methods.balanceOf(config.foreignBridgeAddress).call()
+        )
+        logger.debug({ balance: balance.toString() }, 'Half duplex token bridge balance obtained')
+
+        if (balance.isZero()) {
+          logger.info(`Gas estimate failed because half duplex token balance is zero. Tokens swap is discarded.`)
+          return txToSend
+        }
+
+        logger.error(e, 'Unknown error while processing transaction')
+        throw e
+      }
+    }
+
+    // generate data
+    const data = await foreignBridge.methods.swapTokens().encodeABI()
+
+    // push to job
+    txToSend.push({
+      data,
+      gasEstimate,
+      transactionReference: `swap tokens operation for block number ${blockNumber.toString()}`,
+      to: config.foreignBridgeAddress
+    })
+
+    return txToSend
+  }
+}
+
+module.exports = swapTokensBuilder

oracle/test/gasPrice.test.js

@@ -73,7 +73,7 @@ describe('gasPrice', () => {
       await gasPrice.start('home')
 
       // when
-      await gasPrice.fetchGasPrice('standard', 1, null, () => null)
+      await gasPrice.fetchGasPrice('standard', 1, null, null)
 
       // then
       expect(gasPrice.getPrice()).to.equal('101000000000')
@@ -113,7 +113,7 @@ describe('gasPrice', () => {
       }
 
       // when
-      await gasPrice.fetchGasPrice('standard', 1, bridgeContractMock, () => {})
+      await gasPrice.fetchGasPrice('standard', 1, bridgeContractMock, null)
 
       // then
       expect(gasPrice.getPrice().toString()).to.equal('102000000000')
@@ -156,7 +156,7 @@ describe('gasPrice', () => {
       await gasPrice.start('home')
 
       // when
-      await gasPrice.fetchGasPrice('standard', 1, null, () => {})
+      await gasPrice.fetchGasPrice('standard', 1, null, null)
 
       // then
       expect(fakeLogger.error.calledTwice).to.equal(true) // two errors

oracle/test/message.test.js

@@ -1,6 +1,6 @@
 const { BN, toBN } = require('web3').utils
 const { expect } = require('chai').use(require('bn-chai')(BN))
-const { createMessage, parseMessage, signatureToVRS, parseAMBHeader } = require('../src/utils/message')
+const { createMessage, parseMessage, signatureToVRS } = require('../src/utils/message')
 
 describe('message utils', () => {
   const expectedMessageLength = 104
@@ -288,19 +288,4 @@ describe('message utils', () => {
       expect(signatureThunk).to.throw()
     })
   })
-  describe('parseAMBHeader', () => {
-    it('should return correct values for parsed headers', () => {
-      // given
-      const message =
-        '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'
-
-      const { messageId, sender, executor, gasLimit } = parseAMBHeader(message)
-
-      // then
-      expect(messageId).to.equal('0x000500009a6ff99b356dd998260582be7d95a4d08b2132600000000000000061')
-      expect(sender).to.equal('0x339d0e6f308a410f18888932bdf661636a0f538f')
-      expect(executor).to.equal('0x34718200957aeadd6bece186e61b95618e73a6dc')
-      expect(gasLimit).to.equal(1000000)
-    })
-  })
 })

oracle/test/utils.test.js

@@ -34,14 +34,6 @@ describe('utils', () => {
 
       expect(result.toString()).to.equal('225')
     })
-
-    it('should handle maxGasLimit', () => {
-      const result1 = addExtraGas(new BigNumber(100), 0.25, 110)
-      const result2 = addExtraGas(new BigNumber(100), 0.25, 150)
-
-      expect(result1.toString()).to.equal('110')
-      expect(result2.toString()).to.equal('125')
-    })
   })
 
   describe('checkHTTPS', () => {

package.json

@@ -43,7 +43,6 @@
     "test": "yarn wsrun --exclude oracle-e2e --exclude ui-e2e --exclude monitor-e2e --exclude alm-e2e test",
     "oracle-e2e": "./oracle-e2e/run-tests.sh",
     "ui-e2e": "./ui-e2e/run-tests.sh",
-    "ui-e2e:ci": "xvfb-run yarn ui-e2e",
     "monitor-e2e": "./monitor-e2e/run-tests.sh",
     "alm-e2e": "./alm-e2e/run-tests.sh",
     "clean": "rm -rf ./node_modules ./**/node_modules ./**/**/node_modules ./**/build ./**/**/dist",

ui-e2e/MetaMask.js

@@ -3,7 +3,7 @@ const { By } = require('selenium-webdriver/lib/by')
 const { Page } = require('./Page.js')
 const { homeRPC, foreignRPC } = require('../e2e-commons/constants.json')
 
-const IDMetaMask = 'hccmbhdehlhjhkenmcjnbcahkmljpife'
+const IDMetaMask = 'dapggmdndodedfoaljbglbkaicfpmkkm'
 const URL = 'chrome-extension://' + IDMetaMask + '//popup.html'
 const buttonSubmit = By.className('confirm btn-green')
 const buttonAccept = By.xpath('//*[@id="app-content"]/div/div[4]/div/button')

ui-e2e/Utils.js

@@ -46,11 +46,8 @@ class Utils {
   static async startBrowserWithMetamask() {
     const source = './MetaMask.crx'
     const options = new chrome.Options()
-    await options.addArguments('--no-sandbox')
-    await options.addArguments('--disable-gpu')
-    await options.addArguments('--disable-dev-shm-usage')
-    await options.addArguments('disable-popup-blocking')
     await options.addExtensions(source)
+    await options.addArguments('disable-popup-blocking')
     const driver = await new webdriver.Builder().withCapabilities(options.toCapabilities()).build()
     await driver.sleep(5000)
     return driver

ui-e2e/package.json

@@ -4,6 +4,7 @@
   "license": "MIT",
   "private": true,
   "devDependencies": {
+    "chromedriver": "^77.0.0",
     "mocha": "^5.2.0",
     "selenium-webdriver": "3.6.0"
   },

ui-e2e/run-tests.sh

@@ -1,5 +1,4 @@
 #!/usr/bin/env bash
-
 cd $(dirname $0)
 
 ../e2e-commons/up.sh deploy oracle ui blocks

ui-e2e/test.js

@@ -83,7 +83,7 @@ test.describe('e2e-test for bridge.poa, version 1.5.0', async function() {
       const shouldBe = homeBalanceBefore - maxAmountPerTransactionLimit
       console.log('newHomeBalance = ' + newHomeBalance)
       console.log('shouldBe = ' + shouldBe)
-      const result = Math.abs(shouldBe - newHomeBalance) < maxAmountPerTransactionLimit / 10
+      const result = Math.abs(shouldBe - newHomeBalance) < maxAmountPerTransactionLimit / 100
       homeBalanceBefore = newHomeBalance
       return await assert.strictEqual(result, true, 'Test FAILED.Home POA balance is not correct after transaction')
     })
@@ -95,7 +95,7 @@ test.describe('e2e-test for bridge.poa, version 1.5.0', async function() {
       console.log('newForeignBalance = ' + newForeignBalance)
       console.log('shouldBe = ' + shouldBe)
 
-      const result = Math.abs(shouldBe - newForeignBalance) < maxAmountPerTransactionLimit / 10
+      const result = Math.abs(shouldBe - newForeignBalance) < maxAmountPerTransactionLimit / 100
       return await assert.strictEqual(result, true, 'Test FAILED. Foreign POA balance is not correct after transaction')
     })
 
@@ -115,7 +115,7 @@ test.describe('e2e-test for bridge.poa, version 1.5.0', async function() {
       const shouldBe = foreignBalanceBefore - maxAmountPerTransactionLimit
       console.log('newForeignBalance = ' + newForeignBalance)
       console.log('shouldBe = ' + shouldBe)
-      const result = Math.abs(shouldBe - newForeignBalance) < maxAmountPerTransactionLimit / 10
+      const result = Math.abs(shouldBe - newForeignBalance) < maxAmountPerTransactionLimit / 100
       return await assert.strictEqual(result, true, 'Test FAILED.Foreign POA balance is not correct after transaction')
     })
 
@@ -124,7 +124,7 @@ test.describe('e2e-test for bridge.poa, version 1.5.0', async function() {
       const shouldBe = homeBalanceBefore + maxAmountPerTransactionLimit
       console.log('newHomeBalance = ' + newHomeBalance)
       console.log('shouldBe = ' + shouldBe)
-      const result = Math.abs(shouldBe - newHomeBalance) < maxAmountPerTransactionLimit / 10
+      const result = Math.abs(shouldBe - newHomeBalance) < maxAmountPerTransactionLimit / 100
       return await assert.strictEqual(result, true, 'Test FAILED.Home POA balance is not correct after transaction')
     })
   })
@@ -173,7 +173,7 @@ test.describe('e2e-test for bridge.poa, version 1.5.0', async function() {
       const shouldBe = foreignBalanceBefore - maxAmountPerTransactionLimit
       console.log('newForeignBalance = ' + newForeignBalance)
       console.log('shouldBe = ' + shouldBe)
-      const result = Math.abs(shouldBe - newForeignBalance) < maxAmountPerTransactionLimit / 10
+      const result = Math.abs(shouldBe - newForeignBalance) < maxAmountPerTransactionLimit / 100
       return await assert.strictEqual(result, true, 'Test FAILED.Foreign POA balance is not correct after transaction')
     })
 
@@ -182,7 +182,7 @@ test.describe('e2e-test for bridge.poa, version 1.5.0', async function() {
       const shouldBe = homeBalanceBefore + maxAmountPerTransactionLimit
       console.log('newHomeBalance = ' + newHomeBalance)
       console.log('shouldBe = ' + shouldBe)
-      const result = Math.abs(shouldBe - newHomeBalance) < maxAmountPerTransactionLimit / 10
+      const result = Math.abs(shouldBe - newHomeBalance) < maxAmountPerTransactionLimit / 100
       return await assert.strictEqual(result, true, 'Test FAILED.Home POA balance is not correct after transaction')
     })
     test.it('User is able to send tokens from Home account to Foreign account ', async () => {
@@ -202,7 +202,7 @@ test.describe('e2e-test for bridge.poa, version 1.5.0', async function() {
       const shouldBe = homeBalanceBefore - maxAmountPerTransactionLimit
       console.log('newHomeBalance = ' + newHomeBalance)
       console.log('shouldBe = ' + shouldBe)
-      const result = Math.abs(shouldBe - newHomeBalance) < maxAmountPerTransactionLimit / 10
+      const result = Math.abs(shouldBe - newHomeBalance) < maxAmountPerTransactionLimit / 100
       homeBalanceBefore = newHomeBalance
       return await assert.strictEqual(result, true, 'Test FAILED.Home POA balance is not correct after transaction')
     })
@@ -214,7 +214,7 @@ test.describe('e2e-test for bridge.poa, version 1.5.0', async function() {
       console.log('newForeignBalance = ' + newForeignBalance)
       console.log('shouldBe = ' + shouldBe)
 
-      const result = Math.abs(shouldBe - newForeignBalance) < maxAmountPerTransactionLimit / 10
+      const result = Math.abs(shouldBe - newForeignBalance) < maxAmountPerTransactionLimit / 100
       return await assert.strictEqual(result, true, 'Test FAILED. Foreign POA balance is not correct after transaction')
     })
   })
@@ -263,7 +263,7 @@ test.describe('e2e-test for bridge.poa, version 1.5.0', async function() {
       const shouldBe = foreignBalanceBefore - maxAmountPerTransactionLimit
       console.log('newForeignBalance = ' + newForeignBalance)
       console.log('shouldBe = ' + shouldBe)
-      const result = Math.abs(shouldBe - newForeignBalance) < maxAmountPerTransactionLimit / 10
+      const result = Math.abs(shouldBe - newForeignBalance) < maxAmountPerTransactionLimit / 100
       return await assert.strictEqual(result, true, 'Test FAILED.Foreign POA balance is not correct after transaction')
     })
 
@@ -272,7 +272,7 @@ test.describe('e2e-test for bridge.poa, version 1.5.0', async function() {
       const shouldBe = homeBalanceBefore + maxAmountPerTransactionLimit
       console.log('newHomeBalance = ' + newHomeBalance)
       console.log('shouldBe = ' + shouldBe)
-      const result = Math.abs(shouldBe - newHomeBalance) < maxAmountPerTransactionLimit / 10
+      const result = Math.abs(shouldBe - newHomeBalance) < maxAmountPerTransactionLimit / 100
       return await assert.strictEqual(result, true, 'Test FAILED.Home POA balance is not correct after transaction')
     })
     test.it('User is able to send tokens from Home account to Foreign account', async () => {
@@ -292,7 +292,7 @@ test.describe('e2e-test for bridge.poa, version 1.5.0', async function() {
       const shouldBe = homeBalanceBefore - maxAmountPerTransactionLimit
       console.log('newHomeBalance = ' + newHomeBalance)
       console.log('shouldBe = ' + shouldBe)
-      const result = Math.abs(shouldBe - newHomeBalance) < maxAmountPerTransactionLimit / 10
+      const result = Math.abs(shouldBe - newHomeBalance) < maxAmountPerTransactionLimit / 100
       homeBalanceBefore = newHomeBalance
       return await assert.strictEqual(result, true, 'Test FAILED.Home POA balance is not correct after transaction')
     })
@@ -304,7 +304,7 @@ test.describe('e2e-test for bridge.poa, version 1.5.0', async function() {
       console.log('newForeignBalance = ' + newForeignBalance)
       console.log('shouldBe = ' + shouldBe)
 
-      const result = Math.abs(shouldBe - newForeignBalance) < maxAmountPerTransactionLimit / 10
+      const result = Math.abs(shouldBe - newForeignBalance) < maxAmountPerTransactionLimit / 100
       return await assert.strictEqual(result, true, 'Test FAILED. Foreign POA balance is not correct after transaction')
     })
   })
@@ -353,7 +353,7 @@ test.describe('e2e-test for bridge.poa, version 1.5.0', async function() {
       const shouldBe = foreignBalanceBefore - maxAmountPerTransactionLimit
       console.log('newForeignBalance = ' + newForeignBalance)
       console.log('shouldBe = ' + shouldBe)
-      const result = Math.abs(shouldBe - newForeignBalance) < maxAmountPerTransactionLimit / 10
+      const result = Math.abs(shouldBe - newForeignBalance) < maxAmountPerTransactionLimit / 100
       return await assert.strictEqual(result, true, 'Test FAILED.Foreign POA balance is not correct after transaction')
     })
 
@@ -362,7 +362,7 @@ test.describe('e2e-test for bridge.poa, version 1.5.0', async function() {
       const shouldBe = homeBalanceBefore + maxAmountPerTransactionLimit
       console.log('newHomeBalance = ' + newHomeBalance)
       console.log('shouldBe = ' + shouldBe)
-      const result = Math.abs(shouldBe - newHomeBalance) < maxAmountPerTransactionLimit / 10
+      const result = Math.abs(shouldBe - newHomeBalance) < maxAmountPerTransactionLimit / 100
       return await assert.strictEqual(result, true, 'Test FAILED.Home POA balance is not correct after transaction')
     })
     test.it('User is able to send tokens from Home account to Foreign account', async () => {
@@ -382,7 +382,7 @@ test.describe('e2e-test for bridge.poa, version 1.5.0', async function() {
       const shouldBe = homeBalanceBefore - maxAmountPerTransactionLimit
       console.log('newHomeBalance = ' + newHomeBalance)
       console.log('shouldBe = ' + shouldBe)
-      const result = Math.abs(shouldBe - newHomeBalance) < maxAmountPerTransactionLimit / 10
+      const result = Math.abs(shouldBe - newHomeBalance) < maxAmountPerTransactionLimit / 100
       homeBalanceBefore = newHomeBalance
       return await assert.strictEqual(result, true, 'Test FAILED.Home POA balance is not correct after transaction')
     })
@@ -394,7 +394,7 @@ test.describe('e2e-test for bridge.poa, version 1.5.0', async function() {
       console.log('newForeignBalance = ' + newForeignBalance)
       console.log('shouldBe = ' + shouldBe)
 
-      const result = Math.abs(shouldBe - newForeignBalance) < maxAmountPerTransactionLimit / 10
+      const result = Math.abs(shouldBe - newForeignBalance) < maxAmountPerTransactionLimit / 100
       return await assert.strictEqual(result, true, 'Test FAILED. Foreign POA balance is not correct after transaction')
     })
   })

ui/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:10 as contracts
+FROM node:8 as contracts
 
 WORKDIR /mono
 
@@ -11,7 +11,7 @@ COPY ./contracts/truffle-config.js ./
 COPY ./contracts/contracts ./contracts
 RUN npm run compile
 
-FROM node:10
+FROM node:8
 
 WORKDIR /mono
 COPY package.json .

ui/package.json

@@ -5,6 +5,7 @@
   "dependencies": {
     "@babel/plugin-proposal-decorators": "^7.4.0",
     "bignumber.js": "^6.0.0",
+    "coveralls": "^3.0.0",
     "customize-cra": "^0.2.12",
     "date-fns": "^2.13.0",
     "dotenv": "^7.0.0",
@@ -36,6 +37,7 @@
     "test": "react-app-rewired test --env=jsdom --no-watch",
     "test:watch": "react-app-rewired test --env=jsdom",
     "coverage": "react-app-rewired test --env=jsdom --coverage",
+    "coveralls": "cat ./coverage/lcov.info | node node_modules/.bin/coveralls",
     "eject": "react-app-rewired eject",
     "postinstall": "(cp lib/web3-eth/index.js ../node_modules/web3-eth/src; cp lib/web3-eth/index.js ./node_modules/web3-eth/src) || :"
   },

ui/src/stores/GasPriceStore.js

@@ -53,8 +53,7 @@ class GasPriceStore {
     }
 
     const oracleOptions = { speedType: this.speedType, factor: this.factor, logger: console }
-    const fetchFn = this.gasPriceSupplierUrl === 'gas-price-oracle' ? null : () => fetch(this.gasPriceSupplierUrl)
+    this.gasPrice = (await gasPriceFromSupplier(() => fetch(this.gasPriceSupplierUrl), oracleOptions)) || this.gasPrice
-    this.gasPrice = (await gasPriceFromSupplier(fetchFn, oracleOptions)) || this.gasPrice
 
     setTimeout(() => this.updateGasPrice(), this.updateInterval)
   }

yarn.lock

@@ -4209,13 +4209,6 @@ axios@0.19.0:
     follow-redirects "1.5.10"
     is-buffer "^2.0.2"
 
-axios@^0.19.2:
-  version "0.19.2"
-  resolved "https://registry.yarnpkg.com/axios/-/axios-0.19.2.tgz#3ea36c5d8818d0d5f8a8a97a6d36b86cdc00cb27"
-  integrity sha512-fjgm5MvRHLhx+osE2xoekY70AhARk3a6hkN+3Io1jc00jtquGvxYlKlsFUhmUET0V5te6CcZI7lcv2Ym61mjHA==
-  dependencies:
-    follow-redirects "1.5.10"
-
 axobject-query@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/axobject-query/-/axobject-query-2.0.2.tgz#ea187abe5b9002b377f925d8bf7d1c561adf38f9"
@@ -5847,6 +5840,17 @@ chrome-trace-event@^1.0.0:
   dependencies:
     tslib "^1.9.0"
 
+chromedriver@^77.0.0:
+  version "77.0.0"
+  resolved "https://registry.yarnpkg.com/chromedriver/-/chromedriver-77.0.0.tgz#bd916cc87a0ccb7a6e4fb4b43cb2368bc54db6a0"
+  integrity sha512-mZa1IVx4HD8rDaItWbnS470mmypgiWsDiu98r0NkiT4uLm3qrANl4vOU6no6vtWtLQiW5kt1POcIbjeNpsLbXA==
+  dependencies:
+    del "^4.1.1"
+    extract-zip "^1.6.7"
+    mkdirp "^0.5.1"
+    request "^2.88.0"
+    tcp-port-used "^1.0.1"
+
 ci-info@^1.5.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/ci-info/-/ci-info-1.6.0.tgz#2ca20dbb9ceb32d4524a683303313f0304b1e497"
@@ -6231,7 +6235,7 @@ concat-map@0.0.1:
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
   integrity sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=
 
-concat-stream@^1.5.0, concat-stream@^1.5.1, concat-stream@^1.6.0, concat-stream@^1.6.2:
+concat-stream@1.6.2, concat-stream@^1.5.0, concat-stream@^1.5.1, concat-stream@^1.6.0, concat-stream@^1.6.2:
   version "1.6.2"
   resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.2.tgz#904bdf194cd3122fc675c77fc4ac3d4ff0fd1a34"
   integrity sha512-27HBghJxjiZtIk3Ycvn/4kbJk/1uZuJFfuPEns6LaEvpvG1f0hTea8lilrouyo9mVc2GWdcEZ8OLoGmSADlrCw==
@@ -6546,6 +6550,18 @@ cosmiconfig@^5.0.0, cosmiconfig@^5.0.7, cosmiconfig@^5.1.0, cosmiconfig@^5.2.0:
     js-yaml "^3.13.1"
     parse-json "^4.0.0"
 
+coveralls@^3.0.0:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/coveralls/-/coveralls-3.0.3.tgz#83b1c64aea1c6afa69beaf50b55ac1bc4d13e2b8"
+  integrity sha512-viNfeGlda2zJr8Gj1zqXpDMRjw9uM54p7wzZdvLRyOgnAfCe974Dq4veZkjJdxQXbmdppu6flEajFYseHYaUhg==
+  dependencies:
+    growl "~> 1.10.0"
+    js-yaml "^3.11.0"
+    lcov-parse "^0.0.10"
+    log-driver "^1.2.7"
+    minimist "^1.2.0"
+    request "^2.86.0"
+
 coveralls@^3.0.6:
   version "3.0.11"
   resolved "https://registry.yarnpkg.com/coveralls/-/coveralls-3.0.11.tgz#e141da0922b632fcc66620f334460c3f0026a4ce"
@@ -7038,6 +7054,13 @@ debug@4, debug@^4.0.1, debug@^4.1.0, debug@^4.1.1:
   dependencies:
     ms "^2.1.1"
 
+debug@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.1.0.tgz#373687bffa678b38b1cd91f861b63850035ddc87"
+  integrity sha512-heNPJUJIqC+xB6ayLAMHaIrmN9HKa7aQO8MGqKpvCA+uJYVcvR6l5kgdrhRuwPFHU7P5/A1w0BjByPHwpfTDKg==
+  dependencies:
+    ms "^2.1.1"
+
 debuglog@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/debuglog/-/debuglog-1.0.1.tgz#aa24ffb9ac3df9a2351837cfb2d279360cd78492"
@@ -7169,7 +7192,7 @@ deep-extend@^0.6.0:
   resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.6.0.tgz#c4fa7c95404a17a9c3e8ca7e1537312b736330ac"
   integrity sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==
 
-deep-is@~0.1.3:
+deep-is@^0.1.3, deep-is@~0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
   integrity sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=
@@ -7279,6 +7302,19 @@ del@^3.0.0:
     pify "^3.0.0"
     rimraf "^2.2.8"
 
+del@^4.1.1:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/del/-/del-4.1.1.tgz#9e8f117222ea44a31ff3a156c049b99052a9f0b4"
+  integrity sha512-QwGuEUouP2kVwQenAsOof5Fv8K9t3D8Ca8NxcXKrIpEHjTXK5J2nXLdP+ALI1cgv8wj7KuwBhTwBkOZSJKM5XQ==
+  dependencies:
+    "@types/glob" "^7.1.1"
+    globby "^6.1.0"
+    is-path-cwd "^2.0.0"
+    is-path-in-cwd "^2.0.0"
+    p-map "^2.0.0"
+    pify "^4.0.1"
+    rimraf "^2.6.3"
+
 delayed-stream@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
@@ -9065,6 +9101,16 @@ extract-comments@^1.1.0:
     esprima-extract-comments "^1.1.0"
     parse-code-context "^1.0.0"
 
+extract-zip@^1.6.7:
+  version "1.6.7"
+  resolved "https://registry.yarnpkg.com/extract-zip/-/extract-zip-1.6.7.tgz#a840b4b8af6403264c8db57f4f1a74333ef81fe9"
+  integrity sha1-qEC0uK9kAyZMjbV/Txp0Mz74H+k=
+  dependencies:
+    concat-stream "1.6.2"
+    debug "2.6.9"
+    mkdirp "0.5.1"
+    yauzl "2.4.1"
+
 extract-zip@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/extract-zip/-/extract-zip-2.0.1.tgz#663dca56fe46df890d5f131ef4a06d22bb8ba13a"
@@ -9181,6 +9227,13 @@ fb-watchman@^2.0.0:
   dependencies:
     bser "^2.0.0"
 
+fd-slicer@~1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/fd-slicer/-/fd-slicer-1.0.1.tgz#8b5bcbd9ec327c5041bf9ab023fd6750f1177e65"
+  integrity sha1-i1vL2ewyfFBBv5qwI/1nUPEXfmU=
+  dependencies:
+    pend "~1.2.0"
+
 fd-slicer@~1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/fd-slicer/-/fd-slicer-1.1.0.tgz#25c7c89cb1f9077f8891bbe61d8f390eae256f1e"
@@ -9769,14 +9822,6 @@ ganache-core@^2.6.0:
     ethereumjs-wallet "0.6.3"
     web3 "1.2.4"
 
-gas-price-oracle@^0.1.5:
-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/gas-price-oracle/-/gas-price-oracle-0.1.5.tgz#09dd0d9806465c2f5e63b682e6742f96f6eb525c"
-  integrity sha512-fkaTXnxJcSVco/tMPEcN5gieoUNs8O6JYMXflGLN2+3YeGZAucUI0fgCliazM3nRVAk//bBEm9819/Zb83xhrw==
-  dependencies:
-    axios "^0.19.2"
-    bignumber.js "^9.0.0"
-
 gauge@~2.7.3:
   version "2.7.4"
   resolved "https://registry.yarnpkg.com/gauge/-/gauge-2.7.4.tgz#2c03405c7538c39d7eb37b317022e325fb018bf7"
@@ -10271,7 +10316,7 @@ graceful-fs@^4.1.11, graceful-fs@^4.1.15, graceful-fs@^4.1.6:
   resolved "https://registry.yarnpkg.com/graceful-readlink/-/graceful-readlink-1.0.1.tgz#4cafad76bc62f02fa039b2f94e9a3dd3a391a725"
   integrity sha1-TK+tdrxi8C+gObL5Tpo906ORpyU=
 
-growl@1.10.5:
+growl@1.10.5, "growl@~> 1.10.0":
   version "1.10.5"
   resolved "https://registry.yarnpkg.com/growl/-/growl-1.10.5.tgz#f2735dc2283674fa67478b10181059355c369e5e"
   integrity sha512-qBr4OuELkhPenW6goKVXiv47US3clb3/IbuWF9KNKEijAy9oeHxU9IgzjvJhHkUzhaj7rOUD7+YGWqUjLp5oSA==
@@ -11511,6 +11556,11 @@ is-path-cwd@^1.0.0:
   resolved "https://registry.yarnpkg.com/is-path-cwd/-/is-path-cwd-1.0.0.tgz#d225ec23132e89edd38fda767472e62e65f1106d"
   integrity sha1-0iXsIxMuie3Tj9p2dHLmLmXxEG0=
 
+is-path-cwd@^2.0.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/is-path-cwd/-/is-path-cwd-2.2.0.tgz#67d43b82664a7b5191fd9119127eb300048a9fdb"
+  integrity sha512-w942bTcih8fdJPJmQHFzkS76NEP8Kzzvmw92cXsazb8intwLqPibPPdXf4ANdKV3rYMuuQYGIWtvz9JilB3NFQ==
+
 is-path-in-cwd@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/is-path-in-cwd/-/is-path-in-cwd-1.0.1.tgz#5ac48b345ef675339bd6c7a48a912110b241cf52"
@@ -11518,6 +11568,13 @@ is-path-in-cwd@^1.0.0:
   dependencies:
     is-path-inside "^1.0.0"
 
+is-path-in-cwd@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/is-path-in-cwd/-/is-path-in-cwd-2.1.0.tgz#bfe2dca26c69f397265a4009963602935a053acb"
+  integrity sha512-rNocXHgipO+rvnP6dk3zI20RpOtrAM/kzbB258Uw5BWr3TpXi861yzjo16Dn4hUox07iw5AyeMLHWsujkjzvRQ==
+  dependencies:
+    is-path-inside "^2.1.0"
+
 is-path-inside@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/is-path-inside/-/is-path-inside-1.0.1.tgz#8ef5b7de50437a3fdca6b4e865ef7aa55cb48036"
@@ -11525,6 +11582,13 @@ is-path-inside@^1.0.0:
   dependencies:
     path-is-inside "^1.0.1"
 
+is-path-inside@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/is-path-inside/-/is-path-inside-2.1.0.tgz#7c9810587d659a40d27bcdb4d5616eab059494b2"
+  integrity sha512-wiyhTzfDWsvwAW53OBWF5zuvaOGlZ6PwYxAbPVDhpm+gM09xKQGjBq/8uYN12aDvMxnAnq3dxTyoSoRNmg5YFg==
+  dependencies:
+    path-is-inside "^1.0.2"
+
 is-plain-obj@^1.0.0, is-plain-obj@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-plain-obj/-/is-plain-obj-1.1.0.tgz#71a50c8429dfca773c92a390a4a03b39fcd51d3e"
@@ -11655,6 +11719,11 @@ is-unc-path@^1.0.0:
   dependencies:
     unc-path-regex "^0.1.2"
 
+is-url@^1.2.2:
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/is-url/-/is-url-1.2.4.tgz#04a4df46d28c4cff3d73d01ff06abeb318a1aa52"
+  integrity sha512-ITvGim8FhRiYe4IQ5uHSkj7pVaPDrCTkNd3yq3cV7iZAcJdHTUMPMEHcqSOy9xZ9qFenQCvi+2wjH9a1nXqHww==
+
 is-utf8@^0.2.0, is-utf8@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/is-utf8/-/is-utf8-0.2.1.tgz#4b0da1442104d1b336340e80797e865cf39f7d72"
@@ -11680,6 +11749,15 @@ is-wsl@^1.1.0:
   resolved "https://registry.yarnpkg.com/is-wsl/-/is-wsl-1.1.0.tgz#1f16e4aa22b04d1336b66188a66af3c600c3a66d"
   integrity sha1-HxbkqiKwTRM2tmGIpmrzxgDDpm0=
 
+is2@2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/is2/-/is2-2.0.1.tgz#8ac355644840921ce435d94f05d3a94634d3481a"
+  integrity sha512-+WaJvnaA7aJySz2q/8sLjMb2Mw14KTplHmSwcSpZ/fWJPkUmqw3YTzSWbPJ7OAwRvdYTWF2Wg+yYJ1AdP5Z8CA==
+  dependencies:
+    deep-is "^0.1.3"
+    ip-regex "^2.1.0"
+    is-url "^1.2.2"
+
 isarray@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-0.0.1.tgz#8a18acfca9a8f4177e09abfc6038939b05d1eedf"
@@ -12345,7 +12423,7 @@ js-tokens@^3.0.0, js-tokens@^3.0.2:
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
   integrity sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==
 
-js-yaml@3.x, js-yaml@^3.12.0, js-yaml@^3.13.0, js-yaml@^3.13.1, js-yaml@^3.9.0:
+js-yaml@3.x, js-yaml@^3.11.0, js-yaml@^3.12.0, js-yaml@^3.13.0, js-yaml@^3.13.1, js-yaml@^3.9.0:
   version "3.13.1"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.13.1.tgz#aff151b30bfdfa8e49e05da22e7415e9dfa37847"
   integrity sha512-YfbcO7jXDdyj0DGxYVSlSeQNHbD7XPWvrVWeVUujrQEoZzWJIRrCPoyk6kL6IAjAG2IolMK4T0hNUe0HOUs5Jw==
@@ -12733,6 +12811,11 @@ lcid@^2.0.0:
   dependencies:
     invert-kv "^2.0.0"
 
+lcov-parse@^0.0.10:
+  version "0.0.10"
+  resolved "https://registry.yarnpkg.com/lcov-parse/-/lcov-parse-0.0.10.tgz#1b0b8ff9ac9c7889250582b70b71315d9da6d9a3"
+  integrity sha1-GwuP+ayceIklBYK3C3ExXZ2m2aM=
+
 lcov-parse@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/lcov-parse/-/lcov-parse-1.0.0.tgz#eb0d46b54111ebc561acb4c408ef9363bdc8f7e0"
@@ -14982,7 +15065,7 @@ p-map@^1.1.1:
   resolved "https://registry.yarnpkg.com/p-map/-/p-map-1.2.0.tgz#e4e94f311eabbc8633a1e79908165fca26241b6b"
   integrity sha512-r6zKACMNhjPJMTl8KcFH4li//gkrXWfbD6feV8l6doRHlzljFWGJ2AP6iKaCJXyZmAUMOPtvbW7EXkbWO/pLEA==
 
-p-map@^2.1.0:
+p-map@^2.0.0, p-map@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/p-map/-/p-map-2.1.0.tgz#310928feef9c9ecc65b68b17693018a665cea175"
   integrity sha512-y3b8Kpd8OAN444hxfBbFfj1FY/RjtTd8tzYwhUqNYXx0fXx2iX4maP4Qr6qhIKbQXI02wTLAda4fYUbDagTUFw==
@@ -17442,7 +17525,7 @@ request@^2.67.0, request@^2.85.0, request@^2.87.0, request@^2.88.0:
     tunnel-agent "^0.6.0"
     uuid "^3.3.2"
 
-request@^2.79.0:
+request@^2.79.0, request@^2.86.0:
   version "2.88.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.88.0.tgz#9c2fca4f7d35b592efe57c7f0a55e81052124fef"
   integrity sha512-NAqBSrijGLZdM0WZNsInLJpkJokL72XYjUpnB0iwsRgxh7dB6COrHnTBNwN0E+lHDAJzu7kLAkDeY08z2/A0hg==
@@ -19284,6 +19367,14 @@ tar@^4.0.2, tar@^4.4.10, tar@^4.4.12, tar@^4.4.8:
     safe-buffer "^5.1.2"
     yallist "^3.0.3"
 
+tcp-port-used@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/tcp-port-used/-/tcp-port-used-1.0.1.tgz#46061078e2d38c73979a2c2c12b5a674e6689d70"
+  integrity sha512-rwi5xJeU6utXoEIiMvVBMc9eJ2/ofzB+7nLOdnZuFTmNCLqRiQh2sMG9MqCxHU/69VC/Fwp5dV9306Qd54ll1Q==
+  dependencies:
+    debug "4.1.0"
+    is2 "2.0.1"
+
 temp-dir@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/temp-dir/-/temp-dir-1.0.0.tgz#0a7c0ea26d3a39afa7e0ebea9c1fc0bc4daa011d"
@@ -22327,6 +22418,13 @@ yargs@^7.0.0, yargs@^7.1.0:
     y18n "^3.2.1"
     yargs-parser "^5.0.0"
 
+yauzl@2.4.1:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/yauzl/-/yauzl-2.4.1.tgz#9528f442dab1b2284e58b4379bb194e22e0c4005"
+  integrity sha1-lSj0QtqxsihOWLQ3m7GU4i4MQAU=
+  dependencies:
+    fd-slicer "~1.0.1"
+
 yauzl@^2.10.0, yauzl@^2.4.2:
   version "2.10.0"
   resolved "https://registry.yarnpkg.com/yauzl/-/yauzl-2.10.0.tgz#c7eb17c93e112cb1086fa6d8e51fb0667b79a5f9"