Add GitHub Docker action for testing UDP and HTTP file transfers

The Dockerfile works when run locally. The GitHub action
plumbing may or not work in this state.

.github/actions/test-transfer-udp-http/Dockerfile

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+# Container image that runs your code
+FROM rust:latest
+
+# Copies your code file from your action repository to the filesystem path `/` of the container
+COPY entrypoint.sh /entrypoint.sh
+
+# Code file to execute when the docker container starts up (`entrypoint.sh`)
+ENTRYPOINT ["/entrypoint.sh"]

.github/actions/test-transfer-udp-http/action.yml

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+name: 'test-transfer-udp-http'
+description: 'test aquatic udp and http file transfer'
+outputs:
+  http_ipv4:
+    description: 'HTTP IPv4 status'
+  udp_ipv4:
+    description: 'UDP IPv4 status'
+runs:
+  using: 'docker'
+  image: 'Dockerfile'

.github/actions/test-transfer-udp-http/entrypoint.sh

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+#!/bin/bash
+# IPv6 is unfortunately disabled by default in Docker
+# (see sysctl net.ipv6.conf.lo.disable_ipv6)
+
+set -e
+
+# Install programs and build dependencies
+
+if command -v sudo; then
+    SUDO="sudo "
+else
+    SUDO=""
+fi
+
+$SUDO apt-get update
+$SUDO apt-get install -y cmake libssl-dev screen rtorrent mktorrent
+
+rtorrent -h
+
+# Build and start tracker
+
+if [[ -z "${GITHUB_WORKSPACE}" ]]; then
+    cd "$HOME"
+
+    git clone https://github.com/greatest-ape/aquatic.git
+
+    cd aquatic
+else
+    cd "$GITHUB_WORKSPACE"
+fi
+
+cargo build --bin aquatic
+
+echo "log_level = 'debug'
+
+[network]
+address = '127.0.0.1:3000'" > http.toml
+./target/debug/aquatic http -c http.toml &
+
+echo "[network]
+address = '127.0.0.1:3000'" > udp.toml
+screen -dmS aquatic-udp ./target/debug/aquatic udp -c udp.toml
+
+# Setup directories
+
+cd "$HOME"
+
+mkdir seed
+mkdir leech
+mkdir torrents
+
+# Create torrents
+
+echo "http-test-ipv4" > seed/http-test-ipv4
+echo "udp-test-ipv4" > seed/udp-test-ipv4
+
+mktorrent -p -o "torrents/http-ipv4.torrent" -a "http://127.0.0.1:3000/announce" "seed/http-test-ipv4"
+mktorrent -p -o "torrents/udp-ipv4.torrent" -a "udp://127.0.0.1:3000" "seed/udp-test-ipv4"
+
+cp -r torrents torrents-seed
+cp -r torrents torrents-leech
+
+# Start seeding client
+
+echo "directory.default.set = $HOME/seed
+schedule2 = watch_directory,5,5,load.start=$HOME/torrents-seed/*.torrent" > ~/.rtorrent.rc
+
+echo "Starting seeding client"
+screen -dmS rtorrent-seed rtorrent
+
+sleep 10 # Give seeding rtorrent time to load its config file
+
+# Start leeching client
+
+echo "directory.default.set = $HOME/leech
+schedule2 = watch_directory,5,5,load.start=$HOME/torrents-leech/*.torrent" > ~/.rtorrent.rc
+
+echo "Starting leeching client.."
+screen -dmS rtorrent-leech rtorrent
+
+# Check for completion
+
+HTTP_IPv4="Failed"
+UDP_IPv4="Failed"
+
+i="0"
+
+echo "Watching for finished files.."
+
+while [ $i -lt 300 ]
+do
+    if test -f "leech/http-test-ipv4"; then
+        if grep -q "http-test-ipv4" "leech/http-test-ipv4"; then
+            HTTP_IPv4="Ok"
+        fi
+    fi
+    if test -f "leech/udp-test-ipv4"; then
+        if grep -q "udp-test-ipv4" "leech/udp-test-ipv4"; then
+            UDP_IPv4="Ok"
+        fi
+    fi
+
+    if [ "$HTTP_IPv4" = "Ok" ] && [ "$UDP_IPv4" = "Ok" ]; then
+        break
+    fi
+
+    sleep 1
+
+    i=$[$i+1]
+done
+
+echo "Waited for $i seconds"
+
+echo "::set-output name=http_ipv4::$HTTP_IPv4"
+echo "::set-output name=udp_ipv4::$UDP_IPv4"
+
+if [ "$HTTP_IPv4" != "Ok" ] || [ "$UDP_IPv4" != "Ok" ]; then
+    exit 1
+fi

.github/workflows/test-transfer-udp-http.yml

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+name: "Test UDP and HTTP file transfer"
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]]
+
+jobs:
+  test-transfer-http:
+    runs-on: ubuntu-latest
+    name: Test BitTorrent file transfer over UDP and HTTP
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Test file transferS
+        uses: ../actions/test-transfer-udp-http/action@v1
+        id: test_transfer_udp_http

scripts/test-transfers.sh

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+#!/bin/bash
+
+docker build -t aquatic-test-transfers .github/actions/test-transfers
+docker run -it aquatic-test-transfers bash