remove .github/dependabot.yml

build(deps): bump golang.org/x/net from 0.17.0 to 0.23.0

.github/workflows/release.yml

@@ -0,0 +1,139 @@
+name: Package
+
+on:
+  release:
+    types: [ created ]
+
+jobs:
+  cross-compile:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ linux, freebsd ]
+        arch: [ 386, amd64, arm, arm64 ]
+    name: Crosscompile - ${{matrix.os}}-${{matrix.arch}}
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: 1.18
+
+      - name: compile
+        id: compile
+        run: |
+          ./compile.sh --target ${{matrix.os}} -a ${{matrix.arch}}
+          FILE=$(find build -type f | head -1)
+          echo "::set-output name=version::$(sed -n 's/.*PROGRAM_VERSION\s*=\s*//p' Makefile)"
+          echo "::set-output name=filename::$FILE"
+          echo "::set-output name=name::$(basename $FILE)"
+          echo "::set-output name=mime::$(file -bi $FILE)"
+
+      - name: Upload
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ github.event.release.upload_url }}
+          asset_name: ${{ steps.compile.outputs.name }}-${{steps.compile.outputs.version}}-${{matrix.os}}-${{matrix.arch}}
+          asset_path: ${{ steps.compile.outputs.filename }}
+          asset_content_type: ${{ steps.compile.outputs.mime }}
+
+  package-ubuntu:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ ubuntu-20.04 ]
+    name: Package - ${{matrix.os}}
+    runs-on: ${{matrix.os}}
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: 1.18
+
+      - name: Install build dependencies
+        run: |
+          sudo apt-get -y update
+          sudo apt-get -y install build-essential fakeroot debhelper
+
+      - name: Package
+        id: package
+        run: |
+          make package_debian
+          DEB_FILE=$(ls ../*.deb | head -1)
+          echo "::set-output name=deb_filename::$DEB_FILE"
+          echo "::set-output name=deb_name::$(basename $DEB_FILE)"
+          CH_FILE=$(ls ../*.changes | head -1)
+          echo "::set-output name=ch_filename::$CH_FILE"
+          echo "::set-output name=ch_name::$(basename $CH_FILE)"
+          INFO_FILE=$(ls ../*.buildinfo | head -1)
+          echo "::set-output name=info_filename::$INFO_FILE"
+          echo "::set-output name=info_name::$(basename $INFO_FILE)"
+
+      - name: Upload (package)
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ github.event.release.upload_url }}
+          asset_name: ${{ steps.package.outputs.deb_name }}
+          asset_path: ${{ steps.package.outputs.deb_filename }}
+          asset_content_type: application/x-deb
+
+      - name: Upload (.changes)
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ github.event.release.upload_url }}
+          asset_name: ${{ steps.package.outputs.ch_name }}
+          asset_path: ${{ steps.package.outputs.ch_filename }}
+          asset_content_type: text/plain
+
+      - name: Upload (buildinfo)
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ github.event.release.upload_url }}
+          asset_name: ${{ steps.package.outputs.info_name }}
+          asset_path: ${{ steps.package.outputs.info_filename }}
+          asset_content_type: text/plain
+
+  package-freebsd:
+    strategy:
+      fail-fast: false
+      matrix:
+        arch: [ 386, amd64, arm, arm64 ]
+    name: Package - FreeBSD (${{matrix.arch}})
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: 1.18
+
+      - name: Package
+        id: package
+        run: |
+          GOARCH=${{matrix.arch}} make package_freebsd
+          FILE=$(ls build/*.tar.gz | head -1)
+          echo "::set-output name=filename::$FILE"
+          echo "::set-output name=name::$(basename $FILE)"
+
+      - name: Upload
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ github.event.release.upload_url }}
+          asset_name: ${{ steps.package.outputs.name }}
+          asset_path: ${{ steps.package.outputs.filename }}
+          asset_content_type: application/gzip

.github/workflows/test.yml

@@ -0,0 +1,40 @@
+name: Test
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  cross-compile:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ linux, freebsd ]
+        arch: [ 386, amd64, arm, arm64 ]
+    name: Crosscompile - ${{matrix.os}}-${{matrix.arch}}
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: 1.18
+
+      - name: compile
+        id: compile
+        run: |
+          ./compile.sh --target ${{matrix.os}} -a ${{matrix.arch}}
+
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up Go
+      uses: actions/setup-go@v3
+      with:
+        go-version: 1.18
+
+    - name: Test
+      run: go test -v ./...

.gitignore

@@ -1 +1,3 @@
+*.swp
+.vscode/
 build/

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020-2023 Sw/eden
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Makefile

@@ -1,30 +1,47 @@
 
+PROGRAM_NAME 		= antelope-api-healthcheck
+export PROGRAM_VERSION 	= 1.4.6
+
 GO		= go
-GOCCFLAGS 	= -v
-GOLDFLAGS   =
 PREFIX 		= /usr/local
+export GOOS	= $(shell $(GO) env GOOS)
+export GOARCH 	= $(shell $(GO) env GOARCH)
+GOBUILDFLAGS  	= -v -ldflags='-v -s -w -X main.VersionString=$(PROGRAM_VERSION)'
 
-PROGRAM_NAME=eosio-api-healthcheck
+DPKG_BUILDPACKAGE 	= dpkg-buildpackage
-SOURCES=server.go
+DPKG_BUILDPACKAGE_FLAGS = -b -uc
-DEPENDANCIES= github.com/firstrow/tcp_server \
-	github.com/liamylian/jsontime/v2 \
-	github.com/imroc/req
 
+.PHONY: all build/$(PROGRAM_NAME) build/antelope-v1-mock-server clean package_debian
 all: build
 build: build/$(PROGRAM_NAME)
 
 build/$(PROGRAM_NAME) : $(SOURCES)
-	$(GO) build -o $@ $(GOCCFLAGS) $(GOLDFLAGS) $<
+	$(GO) build -o $@ $(GOBUILDFLAGS) cmd/antelope-api-healtcheck/main.go
 
-deps:
+build/antelope-v1-mock-server:
-	$(GO) get $(DEPENDANCIES)
+	$(GO) build -o $@ $(GOBUILDFLAGS) cmd/antelope-v1-mock-server/main.go
 
-package_deb: build
+test-utils: build/antelope-v1-mock-server
-	export PACKAGE_NAME="$(PROGRAM_NAME)" \
+
-	export PACKAGE_VERSION="0.2.0" \
+test:
-	export PACKAGE_PREFIX=$(PREFIX:/%=%) \
+	$(GO) test -v ./...
-	export PACKAGE_PROGRAM="build/$(PROGRAM_NAME)" \
+
-	&& ./scripts/build_deb.sh
+coverage:
+	$(GO) test -cover -v ./...
+
+install: build
+	PREFIX=$(PREFIX) DESTDIR=$(DESTDIR) scripts/install.sh $(GOOS)
+
+package:
+	PKGROOT=$(DESTDIR) BUILDDIR=$(realpath build) scripts/package.sh $(PKGTYPE)
+
+package_debian:
+	$(DPKG_BUILDPACKAGE) $(DPKG_BUILDPACKAGE_FLAGS)
+
+package_freebsd: PKGTYPE = freebsd
+package_freebsd: GOOS = freebsd
+package_freebsd: DESTDIR = build/freebsdroot
+package_freebsd: install package
 
 clean:
 	$(GO) clean

README.md

@@ -1,6 +1,25 @@
-# EOSIO API Healthcheck for HAProxy
+# Antelope API Healthcheck for HAProxy
 
-This program implements EOSIO healthcheck for HAProxy over TCP.
+[![Test](https://github.com/eosswedenorg/antelope-api-healthcheck/actions/workflows/test.yml/badge.svg)](https://github.com/eosswedenorg/antelope-api-healthcheck/actions/workflows/test.yml)
+[![Report](https://goreportcard.com/badge/github.com/eosswedenorg/antelope-api-healthcheck)](https://goreportcard.com/report/github.com/eosswedenorg/antelope-api-healthcheck)
+
+This program implements Antelope healthcheck for HAProxy over TCP.
+
+## Compiling
+
+You will need golang version `1.16` or later to compile the source.
+
+compile with `compile.sh` script
+
+```sh
+./compile.sh
+```
+
+Execute `./compile.sh --help` to see all available flags to crosscompile for different systems/architectures.
+
+### Package
+
+run `./package.sh` to generate package. Debian (.deb) and FreeBSD are supported.
 
 ## TCP Protocol
 
@@ -8,21 +27,20 @@ The protocol is simple and has 4 rules.
 
 1. Data is transmitted in `packets` encoded in ascii and ends with newline `\n`.
 2. There are two types of packages: `Request` and `Response`. Each `Request` has exactly one `Response`.
-3. Each parameter inside a `Request` is separated by `:`
+3. Each parameter inside a `Request` is separated by `|`
 4. Each response contains exactly one `status code` (see below)
 
-
 ### Request
 
 The following parameters are supported in a request and are ordered from
 first to last below:
 
 | # | Name       | Required                  | Description                                                                                  |
-| - | ---------- | -------- | ----------------------------------------------------------------------------- |
+| - | ---------- | ------------------------- | -------------------------------------------------------------------------------------------- |
-| 1 | Host       | Yes      | IP/Hostname to the api.                                                       |
+| 1 | api        | Yes                       | Type of API to check against,`v1` = standard, `v2` = Hyperion, `atomic` = atomicassets |
-| 2 | Port       | No       | Port number to the api (default `80`)                                         |
+| 2 | url        | Yes (port default `80`) | http url to the api.`http(s)://<ip-or-domain>(:<port>)`                                    |
-| 3 | num_blocks | No       | Number of blocks the api can drift before reported `down` (default 10)        |
+| 3 | num_blocks | No (default `10`)       | Number of blocks the api can drift before reported `down`                                  |
-| 4 | version    | No       | API Version to check against, `v1` = standard, `v2` = Hyperion (default `v1`) |
+| 4 | host       | No (default from `url`) | Value to send in the `HTTP Host Header` to the API                                         |
 
 ### Response
 
@@ -30,10 +48,10 @@ The api can respond with exactly one `status code`.
 See [HAproxy documentation](https://cbonte.github.io/haproxy-dconv/1.7/configuration.html#5.2-agent-check) for more information
 
 | code        | Description                                                  |
-| --------- | ---------------------------------------------------------- |
+| ----------- | ------------------------------------------------------------ |
 | `up`      | Api is healthy                                               |
 | `down`    | Api is not healthy                                           |
-| `failed`  | The program failed to read the status from the api.        |
+| `fail`    | The program failed to read the status from the api.          |
 | `maint`   | Api is set in maintenance mode (not used)                    |
 | `ready`   | Api is ready again after being in `maint` state (not used) |
 | `stopped` | Api has been stopped manually (not used)                     |

cmd/antelope-api-healtcheck/main.go

@@ -0,0 +1,208 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/eosswedenorg-go/pid"
+	"github.com/eosswedenorg/antelope-api-healthcheck/internal/server"
+	"github.com/eosswedenorg/antelope-api-healthcheck/internal/utils"
+	log "github.com/inconshreveable/log15"
+	"github.com/pborman/getopt/v2"
+)
+
+//  Command line flags
+// ---------------------------------------------------------
+
+var (
+	logFile string
+	pidFile string
+)
+
+//  Global variables
+// ---------------------------------------------------------
+
+// Version string, should be updated by the go linker (by passing "-X main.VersionString=value" to the linker)
+// see: https://pkg.go.dev/cmd/link
+var VersionString string = "-"
+
+// File descriptor to the current log file.
+var logfd *os.File
+
+var (
+	logfmt log.Format
+	logger log.Logger
+
+	// TCP Server
+	srv *server.Server
+)
+
+//	argv_listen_addr
+//	  Parse listen address from command line.
+//
+// ---------------------------------------------------------
+func argv_listen_addr() string {
+	var addr string
+
+	argv := getopt.Args()
+	if len(argv) > 0 {
+		addr = argv[0]
+	} else {
+		addr = "127.0.0.1"
+	}
+
+	addr += ":"
+	if len(argv) > 1 {
+		addr += argv[1]
+	} else {
+		addr += "1337"
+	}
+
+	return addr
+}
+
+func setLogFile() {
+	// Open file
+	fd, err := os.OpenFile(logFile, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0o644)
+	if err != nil {
+		logger.Error(err.Error())
+	}
+
+	// Try close if old descriptor is defined.
+	if logfd != nil {
+		if err = logfd.Close(); err != nil {
+			logger.Error(err.Error())
+		}
+	}
+
+	// Update variable and set log writer.
+	logfd = fd
+	logger.SetHandler(log.StreamHandler(logfd, logfmt))
+}
+
+//	signalEventLoop()
+//	  Initialize event channel for OS signals
+//	  and runs an event loop.
+//
+// ---------------------------------------------------------
+func signalEventLoop() {
+	// Setup a channel
+	sig_ch := make(chan os.Signal, 1)
+
+	// subscribe to SIGHUP signal.
+	signal.Notify(sig_ch, syscall.SIGHUP, syscall.SIGINT, syscall.SIGTERM)
+
+	// Event loop
+	var run bool = true
+	for run {
+		// Block until we get a signal.
+		sig := <-sig_ch
+
+		l := logger.New("signal", sig)
+
+		switch sig {
+		case syscall.SIGINT, syscall.SIGTERM:
+			l.Info("Program was asked to terminate.")
+			run = false
+
+			// Tell the server to close.
+			err := srv.Close()
+			if err != nil {
+				l.Error("Failed to close server", "error", err)
+			}
+		// SIGHUP is sent when logfile is rotated.
+		case syscall.SIGHUP:
+			msg := "Logfile was rotated: "
+
+			if logfd != nil {
+				setLogFile()
+				msg += "Filedescriptor was updated"
+			} else {
+				msg += "No Filedescriptor to update (most likely uses standard out/err streams)"
+			}
+
+			l.Info(msg)
+		default:
+			l.Warn("Unknown signal")
+		}
+	}
+}
+
+//	main
+//
+// ---------------------------------------------------------
+func main() {
+	var version bool
+	var usage bool
+	var logFormatter *string
+	// Set default timeout to 2 sec
+	// as haproxy "inter" parameter to healthcheck is set to 2s per default.
+	req_timeout := time.Second * 2
+
+	logger = log.Root()
+
+	// Command line parsing
+	getopt.SetParameters("[ip] [port]")
+	getopt.FlagLong(&usage, "help", 'h', "Print this help text")
+	getopt.FlagLong(&version, "version", 'v', "Print version")
+	getopt.FlagLong(&logFile, "log", 'l', "Path to log file", "file")
+	getopt.FlagLong(&pidFile, "pid", 'p', "Path to pid file", "file")
+	getopt.FlagLong(&req_timeout, "timeout", 't', "Set the maximum time before a request times out, valid prefixes are 's','ms','us'", "duration")
+	logFormatter = getopt.EnumLong("log-format", 0, []string{"term", "logfmt", "json", "json-pretty"}, "", "Log format to use: term,logfmt,json,json-pretty")
+
+	getopt.Parse()
+
+	if usage {
+		getopt.Usage()
+		return
+	}
+
+	if version {
+		fmt.Printf("Version: %s\n", VersionString)
+		return
+	}
+
+	logfmt = utils.ParseLogFormatter(*logFormatter)
+
+	// Open logfile.
+	if len(logFile) > 0 {
+		setLogFile()
+	} else {
+		logger.SetHandler(log.StreamHandler(os.Stdout, logfmt))
+	}
+
+	logger.Info("Process is starting", "pid", pid.Get())
+
+	if len(pidFile) > 0 {
+		logger.Info("Writing pidfile", "file", pidFile)
+		err := pid.Save(pidFile)
+		if err != nil {
+			logger.Error("Failed to write pidfile", "msg", err)
+		}
+	}
+
+	if req_timeout.Seconds() < 2 {
+		// Dont alow anything below 2 seconds. that is abit aggressive.
+		logger.Warn("Request timeout is less than the minimum. Setting it to 2 seconds", "req_timeout", req_timeout)
+		req_timeout = time.Second * 2
+	} else if req_timeout.Minutes() > 1.0 {
+		// Anything more than 1 min is too long :)
+		logger.Warn("Request timeout is more than the maximum. Setting it to 1 minute", "req_timeout", req_timeout)
+		req_timeout = time.Minute
+	}
+
+	// Create server
+	srv = server.New(argv_listen_addr(), server.WithTick(time.Second*10), server.WithTimeout(req_timeout))
+
+	// Run signal event loop in its own goroutine
+	go signalEventLoop()
+
+	// Run server
+	if err := srv.Run(); err != nil {
+		logger.Error("Server error", "error", err)
+		os.Exit(1)
+	}
+}

cmd/antelope-v1-mock-server/main.go

@@ -0,0 +1,78 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"math/rand"
+	"net/http"
+	"os"
+	"time"
+
+	"github.com/eosswedenorg-go/leapapi"
+)
+
+var (
+	listen_host = flag.String("h,host", "localhost", "Host to listen on.")
+	listen_port = flag.Int("p", 3333, "Port to listen to.")
+	delay       = flag.Int("d", 0, "Delays responses randomly between 0 and int seconds.")
+)
+
+func getInfo(w http.ResponseWriter, r *http.Request) {
+	current_time := time.Now()
+
+	info := leapapi.Info{
+		ServerVersion:             "c83ea9c2",
+		ServerVersionString:       "0.0.0-debug",
+		ServerFullVersionString:   "0.0.0-debug-c83ea9c21f60670a00627319ebbd233e6bb4f84904dbcfc894242ba38b2761d4",
+		HeadBlockNum:              1000,
+		HeadBlockID:               "168d2cf232ca78e94d57a86301e35f110b6016358e05d49ab822df0a8aa988ea",
+		HeadBlockTime:             current_time.UTC(),
+		ChainID:                   "1045fa26e1c5be590ae6114e73331152671f13c87eee60a2171387dcbc44da88",
+		HeadBlockProducer:         "debugproducer",
+		LastIrreversableBlockNum:  900,
+		LastIrreversableBlockID:   "5149254b9b6fd61a02403ebe3b45ade57642ed473295f33e2184e56966370a1f",
+		LastIrreversableBlockTime: current_time.Add(time.Second * -5).UTC(),
+		VirtualBlockCPULimit:      4000,
+		VirtualBlockNETLimit:      5000,
+		BlockCPULimit:             8000,
+		BlockNETLimit:             2000,
+		TotalCPUWeight:            60488453825414473,
+		TotalNETWeight:            101764028077814346,
+		ForkDBHeadBlockID:         "7544799d7c2f511368cb94adc65223e1e2cc4cf9639ba07eef2421486a8dbfe5",
+		ForkDBHeadBlockNum:        100,
+	}
+
+	if *delay > 0 {
+		sleep_for := rand.Intn(*delay)
+		time.Sleep(time.Second * time.Duration(sleep_for))
+	}
+
+	payload, err := leapapi.Json().Marshal(&info)
+	if err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		return
+	}
+
+	w.Header().Add("Content-Type", "application/json")
+	_, err = w.Write(payload)
+	if err != nil {
+		fmt.Fprintln(os.Stderr, err)
+	}
+}
+
+func main() {
+	rand.Seed(time.Now().Unix())
+
+	flag.Parse()
+
+	http.HandleFunc("/v1/chain/get_info", getInfo)
+
+	addr := fmt.Sprintf("%s:%d", *listen_host, *listen_port)
+
+	fmt.Println("Listening on:", addr)
+
+	err := http.ListenAndServe(addr, nil)
+	if err != nil {
+		panic(err)
+	}
+}

compile.sh

@@ -0,0 +1,72 @@
+#!/bin/bash
+
+SYSTEMS=( windows linux freebsd )
+
+ARCHS=( 386 amd64 amd64p32 arm arm64 ppc ppc64 )
+
+function usage() {
+    echo "Usage: ${0##*/} [ -h|--help ] [ -t|--target <system> ] [ -a|--arch <arch> ]"
+    echo ""
+    echo " Valid systems:"
+    for i in "${SYSTEMS[@]}"; do
+        echo "  * ${i}"
+    done
+    echo ""
+    echo " Valid architectures:"
+    for i in "${ARCHS[@]}"; do
+        echo "  * ${i}"
+    done
+    echo ""
+    exit 1
+}
+
+options=$(getopt -n "${0##*/}" -o "ht:a:" -l "help,target:,arch:" -- "$@")
+
+[ $? -eq 0 ] || usage
+
+eval set -- "$options"
+
+MAKE_TARGET="all"
+
+while true; do
+
+    case $1 in
+    -t|--target)
+        shift
+        REGEX=$(echo "${SYSTEMS[@]}" | sed 's/[[:space:]]/|/g')
+        [[ ! "$1" =~ ^($REGEX)$ ]] && {
+            echo "Incorrect system '$1' provided"
+            usage
+        }
+        export GOOS=$1
+        ;;
+    -a|--arch)
+        shift
+        REGEX=$(echo "${ARCHS[@]}" | sed 's/[[:space:]]/|/g')
+        [[ ! "$1" =~ ^($REGEX)$ ]] && {
+            echo "Incorrect architecture '$1' provided"
+            usage
+        }
+        export GOARCH=$1
+        ;;
+    -h|--help) usage ;;
+    --) shift
+        break
+        ;;
+    esac
+    shift
+done
+
+MESSAGE=""
+if [ ! -z "${GOOS}" ]; then
+    MESSAGE="[\e[34m::\e[0m] Crosscompiling for: ${GOOS}"
+fi
+
+if [ ! -z "${GOARCH}" ]; then
+    MESSAGE="${MESSAGE} (${GOARCH})"
+fi
+
+
+[ ! -z "${MESSAGE}" ] && echo -e "" $MESSAGE
+
+make -B ${MAKE_TARGET}

debian/.gitignore

@@ -0,0 +1,7 @@
+.debhelper/*
+*.debhelper
+*.log
+*-stamp
+*.substvars
+files
+pkgroot/*

debian/changelog

@@ -0,0 +1,192 @@
+antelope-api-healthcheck (1.4.6) unstable; urgency=medium
+
+  * Go Packages
+    - Update github.com/panjf2000/gnet/v2 from 2.2.9 to 2.3.1
+    - Update github.com/stretchr/testify from 1.8.3 to 1.8.4
+
+ -- Henrik Hautakoski <henrik@eossweden.org>  Tue, 25 Jul 2023 17:28:29 +0200
+
+antelope-api-healthcheck (1.4.5) unstable; urgency=medium
+
+  Maintenance release, dependancies updates.
+
+  * Go Packages
+    - Update github.com/panjf2000/gnet/v2 from 2.2.6 to 2.2.9
+    - Update github.com/stretchr/testify from 1.8.2 to 1.8.3
+
+ -- Henrik Hautakoski <henrik@eossweden.org>  Tue, 23 May 2023 17:19:42 +0200
+
+antelope-api-healthcheck (1.4.4) unstable; urgency=medium
+
+  [ Security ]
+    * CVE-2022-41723 - Uncontrolled Resource Consumption
+      Fixed by updating golang.org/x/net to patched version 0.7.0
+
+  [ Misc ]
+
+    * Go Packages
+      - Update golang.org/x/net from 0.4.0 to 0.7.0
+      - Update github.com/eosswedenorg-go/atomicasset from v0.1.1-0.20230206134606-4577244fa67a to v0.1.1
+
+ -- Henrik Hautakoski <henrik@eossweden.org>  Tue, 04 Apr 2023 07:04:24 +0200
+
+antelope-api-healthcheck (1.4.3) unstable; urgency=medium
+
+  [ Misc ]
+
+    * Typo fix.
+
+    * Go Packages
+      - github.com/stretchr/testify from 1.8.1 to 1.8.2
+      - github.com/inconshreveable/log15 from 0.0.0-20221122034931-555555054819 to 3.0.0-testing.5+incompatible
+      - github.com/panjf2000/gnet/v2 from 2.2.4 to 2.2.6
+
+ -- Henrik Hautakoski <henrik@eossweden.org>  Tue, 04 Apr 2023 06:07:05 +0200
+
+antelope-api-healthcheck (1.4.2) unstable; urgency=medium
+
+  [ Improvements ]
+    * API Check
+      - Default value for api timeout changed from 30s to 2s.
+        This makes sense because haproxy "inter" parameter is set to 2s per default.
+
+    * Linux install script
+      - Now installs `syslog-ng` configuration file.
+
+    * Misc
+      - Program now exits with correct status code "1" when an error occures.
+
+ -- Henrik Hautakoski <henrik@eossweden.org>  Tue, 14 Feb 2023 09:11:43 +0100
+
+antelope-api-healthcheck (1.4.1) unstable; urgency=medium
+
+  [ Bugfixes ]
+
+    * Fixing a bug where TCP connections were not closed after response was written.
+
+  [ Improvements ]
+
+    * API Check
+      - timeouts can now be configurable.
+      - "duration" and "duration_us" fields added to log row, these
+        values represents the api check duration.
+
+    * CLI
+      - new parameter `-t`, `--timeout` that specify the maximum duration of api checks.
+
+  [ Misc ]
+
+    * Go Packages
+      - Update github.com/panjf2000/gnet/v2 to v2.2.4
+      - Update github.com/eosswedenorg-go/leapapi to v0.2.3
+      - Update github.com/eosswedenorg-go/atomicassets to v0.1.1-0.20230206134606-4577244fa67a
+
+ -- Henrik Hautakoski <henrik@eossweden.org>  Tue, 07 Feb 2023 09:29:40 +0100
+
+antelope-api-healthcheck (1.4.0) unstable; urgency=medium
+
+  * Using github.com/panjf2000/gnet as tcp server library instead of github.com/eosswedenorg-go/tcp_server
+
+  [ Misc ]
+
+    * Go Packages
+      - Update github.com/eosswedenorg-go/haproxy to v1.0.1
+      - Update github.com/eosswedenorg-go/atomicasset to v0.1.0
+
+ -- Henrik Hautakoski <henrik@eossweden.org>  Wed, 04 Jan 2023 14:03:41 +0100
+
+antelope-api-healthcheck (1.3.1) unstable; urgency=medium
+
+  * Upgraded to github.com/eosswedenorg-go/leapapi@v0.2.1
+    That contains a bugfix for HTTP Host Header being sent without port.
+    This caused some antelope api's with `http-validate-host` enabled
+    to respond with `400 Bad Request` as the header and url did not match.
+
+ -- Henrik Hautakoski <henrik@eossweden.org>  Mon, 12 Dec 2022 16:19:26 +0100
+
+antelope-api-healthcheck (1.3.0) unstable; urgency=medium
+
+  Project and binary renamed from eosio-api-healthcheck to antelope-api-healthcheck
+
+  [ BREAKING Change: Config files ]
+
+  * Debian /etc/sysconfig/eosio-api-healthcheck
+    - File renamed to /etc/sysconfig/antelope-api-healthcheck
+    - EOSIO_API_HEALTCHECK_OPTS changed to ANTELOPE_API_HEALTCHECK_OPTS
+
+  * FreeBSD /etc/rc.conf
+    - eosio_api_healthcheck_args changed to antelope_api_healthcheck_args
+    - eosio_api_healthcheck_logfile changed to antelope_api_healthcheck_logfile
+
+  [ BREAKING Change: API ]
+
+  * Requests using "contract" as api is invalid from
+    this release and should use "atomic" instead.
+
+    For example: "contract|https://api.domain.com" should be changed to "atomic|https://api.domain.com"
+
+  [ Misc ]
+
+  * Go Packages
+   - Upgrade github.com/eosswedenorg-go/eosapi to github.com/eosswedenorg-go/leapapi v0.2.0
+
+ -- Henrik Hautakoski <henrik@eossweden.org>  Fri, 25 Nov 2022 12:40:02 +0100
+
+eosio-api-healthcheck (1.2.6) unstable; urgency=medium
+
+  * Go Packages
+   - Upgrade github.com/stretchr/testify to v1.8.1
+   - Upgrade github.com/eosswedenorg-go/eosapi to v0.1.3
+   - Upgrade github.com/inconshreveable/log15 to v0.0.0-20221122034931-555555054819
+   - Upgrade github.com/eosswedenorg-go/tcp_server to v0.2.1
+
+  * Eosio v1/v2 API's
+   - HTTP Errors are now handled by `eosapi`
+     This changes the log message abit and will report "Fail" instead of "Down" to haproxy.
+
+ -- Henrik Hautakoski <henrik@eossweden.org>  Thu, 24 Nov 2022 14:57:00 +0100
+
+eosio-api-healthcheck (1.2.5) unstable; urgency=medium
+
+  * Logging
+   - Add runtime support via "--log-format" cli flag to change the logging format.
+     Supported formats are: term, logfmt, json, json-pretty
+
+ -- Henrik Hautakoski <henrik@eossweden.org>  Fri, 21 Oct 2022 13:42:23 +0200
+
+eosio-api-healthcheck (1.2.4) unstable; urgency=medium
+
+  * Go Version
+   - Project now requires golang v1.16 or later to build.
+
+  * Go Packages
+   - Upgrade github.com/eosswedenorg-go/pid to v1.0.1
+   - Upgrade github.com/mattn/go-colorable to v0.1.13
+   - Upgrade github.com/eosswedenorg-go/eosapi to v0.1.1
+   - Upgrade github.com/eosswedenorg-go/eos-contract-api-client to v0.0.0-20220221105418-dc591fcc0dc5
+   - Upgrade github.com/eosswedenorg-go/tcp_server to v0.2.0
+
+  * Testing
+   - Improve unit tests to catch more bugs.
+
+ -- Henrik Hautakoski <henrik@eossweden.org>  Thu, 13 Oct 2022 14:34:04 +0200
+
+eosio-api-healthcheck (1.2.3) bionic; urgency=medium
+
+  * Signal handling
+   - Act on SIGINT (user input CTRL+C for example)
+     and gracefully shutdown the program.
+   - Act on SIGTERM (sent by systemd for example)
+     and gracefully shutdown the program
+  * Build system
+   - Separate install and packaging from build script into it's own scripts.
+   - Remove the debian package script and use "The debian standard"
+     (and debhelper) to build packages.
+     Files stored under the debian directory defines how the program is
+     built and package The `dpkg-buildpackage` script (and other tools)
+     uses these files to create a package.
+  * Testing: Adding test cases and make github automatically runs test on push.
+  * Go packages
+   - Upgrade to v0.1.1 for github.com/eosswedenorg-go/tcp_server
+
+ -- Henrik Hautakoski <henrik@eossweden.org>  Mon, 22 Aug 2022 13:31:39 +0200

debian/compat

@@ -0,0 +1 @@
+10

debian/control

@@ -0,0 +1,19 @@
+Source: antelope-api-healthcheck
+Section: introspection
+Build-Depends:
+ debhelper (>= 11)
+Standards-Version: 4.5.0
+Vcs-Git: https://github.com/eosswedenorg/antelope-api-healthcheck.git
+Vcs-Browser: https://github.com/eosswedenorg/antelope-api-healthcheck
+Priority: optional
+Maintainer: Henrik Hautakoski <henrik@eossweden.org>
+
+Package: antelope-api-healthcheck
+Section: introspection
+Priority: optional
+Architecture: amd64
+Depends: ${shlibs:Depends}, ${misc:Depends}
+Homepage: https://github.com/eosswedenorg/antelope-api-healthcheck
+Description: HAproxy healthcheck program for Leap API.
+ This package provides all the files needed to
+ run the antelope-api-healthcheck TCP Server

debian/copyright

@@ -0,0 +1,27 @@
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Upstream-Name: antelope-api-healthcheck
+Upstream-Contact: Henrik Hautakoski <henrik@eossweden.org>
+Source: https://github.com/eosswedenorg/antelope-api-healthcheck.git
+
+Files: *
+Copyright: 2020-2023 Sw/eden
+License: MIT
+
+License: MIT
+ Permission is hereby granted, free of charge, to any person obtaining a
+ copy of this software and associated documentation files (the "Software"),
+ to deal in the Software without restriction, including without limitation
+ the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ and/or sell copies of the Software, and to permit persons to whom the
+ Software is furnished to do so, subject to the following conditions:
+ .
+ The above copyright notice and this permission notice shall be included
+ in all copies or substantial portions of the Software.
+ .
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

debian/rules

@@ -0,0 +1,15 @@
+#!/usr/bin/make -f
+
+include /usr/share/dpkg/default.mk
+
+INSTALL_FLAGS := PREFIX=/usr GOOS=linux GOBUILDFLAGS="-v --buildmode=pie -ldflags=\"-v -s -w -X main.VersionString=$(DEB_VERSION)\""
+
+%:
+	dh $@ -P debian/pkgroot
+
+override_dh_auto_build:
+override_dh_auto_install:
+	dh_auto_install --buildsystem=makefile -- $(INSTALL_FLAGS)
+
+override_dh_usrlocal:
+override_dh_gconf:

debian/source/format

@@ -0,0 +1 @@
+3.0 (native)

eosapi/functions.go

@@ -1,63 +0,0 @@
-
-package eosapi;
-
-import (
-    "fmt"
-	"time"
-	"io/ioutil"
-	"github.com/imroc/req"
-	"github.com/liamylian/jsontime/v2"
-)
-
-var json = v2.ConfigWithCustomTimeFormat;
-
-func init() {
-
-	// EOS Api does not specify timezone in timestamps (they are always UTC tho).
-	v2.SetDefaultTimeFormat("2006-01-02T15:04:05", time.UTC);
-}
-
-func send(method string, host string, port int, uri string) (*req.Resp, error) {
-
-	// Go's net.http (that `req` uses) sends the port in the host header.
-	// nodeos api does not like that, so we need to provide our
-	// own Host header with just the host.
-	headers := req.Header{
-		"Host": host,
-	}
-
-	r := req.New()
-	return r.Do(method, fmt.Sprintf("http://%s:%d%s", host, port, uri), headers);
-}
-
-//  GetInfo - Fetches get_info from API
-// ---------------------------------------------------------
-func GetInfo(host string, port int) (Info, error) {
-
-	var info Info;
-
-	r, err := send("GET", host, port, "/v1/chain/get_info");
-	if err == nil {
-		resp := r.Response()
-		body, _ := ioutil.ReadAll(resp.Body);
-
-		// Parse json
-		err = json.Unmarshal(body, &info);
-	}
-	return info, err;
-}
-
-func GetHealth(host string, port int) (Health, error) {
-
-	var health Health;
-
-	r, err := send("GET", host, port, "/v2/health");
-	if err == nil {
-		resp := r.Response()
-		body, _ := ioutil.ReadAll(resp.Body);
-
-		// Parse json
-		err = json.Unmarshal(body, &health);
-	}
-	return health, err;
-}

eosapi/types.go

@@ -1,23 +0,0 @@
-
-package eosapi;
-
-import "time"
-
-// get_info format (not all fields).
-type Info struct {
-	ServerVersion 	string 		`json:"server_version"`
-	HeadBlockNum 	int64 		`json:"head_block_num"`
-	HeadBlockTime 	time.Time 	`json:"head_block_time"`
-}
-
-type Service struct {
-	Name	string 				   `json:"service"`
-	Status  string  			   `json:"status"`
-	Data    map[string]interface{} `json:"service_data"`
-	Time    int64 				   `json:"time"` // unix timestamp.
-}
-
-type Health struct {
-	VersionHash 	string 		`json:"version_hash"`
-	Health          []Service 	`json:"health"`
-}

go.mod

@@ -0,0 +1,59 @@
+module github.com/eosswedenorg/antelope-api-healthcheck
+
+go 1.18
+
+require (
+	github.com/eosswedenorg-go/atomicasset v0.1.2
+	github.com/eosswedenorg-go/haproxy v1.0.1
+	github.com/eosswedenorg-go/leapapi v0.2.3
+	github.com/eosswedenorg-go/pid v1.0.1
+	github.com/inconshreveable/log15 v3.0.0-testing.5+incompatible
+	github.com/panjf2000/gnet/v2 v2.3.1
+	github.com/pborman/getopt/v2 v2.1.0
+	github.com/stretchr/testify v1.8.4
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/eosswedenorg-go/unixtime v0.1.1 // indirect
+	github.com/go-stack/stack v1.8.1 // indirect
+	github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0 // indirect
+	github.com/golang/mock v1.6.0 // indirect
+	github.com/google/go-cmp v0.5.9 // indirect
+	github.com/google/pprof v0.0.0-20221219190121-3cb0bae90811 // indirect
+	github.com/hashicorp/errwrap v1.1.0 // indirect
+	github.com/hashicorp/go-multierror v1.1.1 // indirect
+	github.com/imroc/req/v3 v3.33.2 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/liamylian/jsontime/v2 v2.0.0 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.16 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/onsi/ginkgo/v2 v2.6.1 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/quic-go/qpack v0.4.0 // indirect
+	github.com/quic-go/qtls-go1-18 v0.2.0 // indirect
+	github.com/quic-go/qtls-go1-19 v0.2.0 // indirect
+	github.com/quic-go/qtls-go1-20 v0.1.0 // indirect
+	github.com/quic-go/quic-go v0.32.0 // indirect
+	github.com/rogpeppe/go-internal v1.10.0 // indirect
+	github.com/sonh/qs v0.6.2 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	go.uber.org/atomic v1.10.0 // indirect
+	go.uber.org/multierr v1.8.0 // indirect
+	go.uber.org/zap v1.21.0 // indirect
+	golang.org/x/crypto v0.21.0 // indirect
+	golang.org/x/exp v0.0.0-20221217163422-3c43f8badb15 // indirect
+	golang.org/x/mod v0.8.0 // indirect
+	golang.org/x/net v0.23.0 // indirect
+	golang.org/x/sync v0.2.0 // indirect
+	golang.org/x/sys v0.18.0 // indirect
+	golang.org/x/term v0.18.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/tools v0.6.0 // indirect
+	gopkg.in/guregu/null.v4 v4.0.0 // indirect
+	gopkg.in/natefinch/lumberjack.v2 v2.2.1 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

go.sum

@@ -0,0 +1,170 @@
+github.com/benbjohnson/clock v1.1.0 h1:Q92kusRqC1XV2MjkWETPvjJVqKetz1OzxZB7mHJLju8=
+github.com/benbjohnson/clock v1.1.0/go.mod h1:J11/hYXuz8f4ySSvYwY0FKfm+ezbsZBKZxNJlLklBHA=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/eosswedenorg-go/atomicasset v0.1.2 h1:bvz5tVVyP8EHSQo9CPFZjdl1lICBisfoRwJv/SURMCs=
+github.com/eosswedenorg-go/atomicasset v0.1.2/go.mod h1:iRs02PLQmJAFBlukjrReSwti+Ga2Rp2wtnBGQElMVg4=
+github.com/eosswedenorg-go/haproxy v1.0.1 h1:N9tyQSvEDG9Fq+gBP0b7A8R5iZAqYCms2K6Nvqq8TfE=
+github.com/eosswedenorg-go/haproxy v1.0.1/go.mod h1:rBXDRd72ifA/IvsZUpW8Q4gR5rbV/4DAuKC/lqDrwWQ=
+github.com/eosswedenorg-go/leapapi v0.2.3 h1:2qGlP8wzZJCvjM9ol9t2uroCPMpV+wxF7lNl2NdG87M=
+github.com/eosswedenorg-go/leapapi v0.2.3/go.mod h1:hyfjHswFjcnWMqOb+cYvTrT6l34S80GrFvfOdcYugnM=
+github.com/eosswedenorg-go/pid v1.0.1 h1:W4AEnnNwb041SpNR1uTZ/KbJ0OTA5eqiqIR1Q5Ah6A0=
+github.com/eosswedenorg-go/pid v1.0.1/go.mod h1:wiOB/JXGt4YA3+T0j0xmCGSc3Jxzb7Ti/Ftli1fgWu4=
+github.com/eosswedenorg-go/unixtime v0.1.1 h1:fTNxDtQOKncv/zAc3TzwLQLA/YBVM5nlbsFWVEyMkds=
+github.com/eosswedenorg-go/unixtime v0.1.1/go.mod h1:knU247oYvgCQD9MLYBdpi7qD1pTRgkSAWr9jbUx3S6c=
+github.com/go-logr/logr v1.2.3 h1:2DntVwHkVopvECVRSlL5PSo9eG+cAkDCuckLubN+rq0=
+github.com/go-stack/stack v1.8.1 h1:ntEHSVwIt7PNXNpgPmVfMrNhLtgjlmnZha2kOpuRiDw=
+github.com/go-stack/stack v1.8.1/go.mod h1:dcoOX6HbPZSZptuspn9bctJ+N/CnF5gGygcUP3XYfe4=
+github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0 h1:p104kn46Q8WdvHunIJ9dAyjPVtrBPhSr3KT2yUst43I=
+github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0/go.mod h1:fyg7847qk6SyHyPtNmDHnmrv/HOrqktSC+C9fM+CJOE=
+github.com/golang/mock v1.6.0 h1:ErTB+efbowRARo13NNdxyJji2egdxLGQhRaY+DUumQc=
+github.com/golang/mock v1.6.0/go.mod h1:p6yTPP+5HYm5mzsMV8JkE6ZKdX+/wYM6Hr+LicevLPs=
+github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
+github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
+github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
+github.com/google/pprof v0.0.0-20221219190121-3cb0bae90811 h1:wORs2YN3R3ona/CXYuTvLM31QlgoNKHvlCNuArCDDCU=
+github.com/google/pprof v0.0.0-20221219190121-3cb0bae90811/go.mod h1:dDKJzRmX4S37WGHujM7tX//fmj1uioxKzKxz3lo4HJo=
+github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
+github.com/hashicorp/errwrap v1.1.0 h1:OxrOeh75EUXMY8TBjag2fzXGZ40LB6IKw45YeGUDY2I=
+github.com/hashicorp/errwrap v1.1.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
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+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

haproxy/types.go

@@ -1,15 +0,0 @@
-
-package haproxy;
-
-// All supported health check values for HAproxy.
-// See https://cbonte.github.io/haproxy-dconv/1.7/configuration.html#5.2-agent-check
-type HealthCheckStatus string
-const (
-	HealthCheckUp 		= "up"
-	HealthCheckDown 	= "down"
-	HealthCheckMaint 	= "maint"
-	HealthCheckReady	= "ready"
-	HealthCheckDrain	= "drain"
-	HealthCheckFailed 	= "failed"
-	HealthCheckStopped 	= "Stopped"
-)

internal/api/antelope_v1.go

@@ -0,0 +1,72 @@
+package api
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/eosswedenorg-go/haproxy/agentcheck"
+	"github.com/eosswedenorg-go/leapapi"
+	"github.com/eosswedenorg/antelope-api-healthcheck/internal/utils"
+)
+
+type AntelopeV1 struct {
+	utils.Time
+	client     leapapi.Client
+	block_time float64
+}
+
+func AntelopeV1Factory(args ApiArguments) ApiInterface {
+	return NewAntelopeV1(args.Url, args.Host, float64(args.NumBlocks/2))
+}
+
+func NewAntelopeV1(url string, host string, block_time float64) AntelopeV1 {
+	api := AntelopeV1{
+		client:     *leapapi.New(url),
+		block_time: block_time,
+	}
+
+	api.client.Host = host
+
+	return api
+}
+
+func (e AntelopeV1) LogInfo() LogParams {
+	p := LogParams{
+		"type", "antelope-v1",
+		"url", e.client.Url,
+	}
+
+	if len(e.client.Host) > 0 {
+		p.Add("host", e.client.Host)
+	}
+
+	p.Add("block_time", e.block_time)
+
+	return p
+}
+
+func (e AntelopeV1) Call(ctx context.Context) (agentcheck.Response, string) {
+	info, err := e.client.GetInfo(ctx)
+	if err != nil {
+		resp := agentcheck.NewStatusMessageResponse(agentcheck.Fail, "")
+		return resp, err.Error()
+	}
+
+	// Validate head block.
+	diff := e.GetTime().Sub(info.HeadBlockTime).Seconds()
+
+	if diff > e.block_time {
+
+		resp := agentcheck.NewStatusMessageResponse(agentcheck.Down, "")
+
+		msg := "Taking offline because head block is lagging %.0f seconds"
+		return resp, fmt.Sprintf(msg, diff)
+	} else if diff < -e.block_time {
+
+		resp := agentcheck.NewStatusMessageResponse(agentcheck.Down, "")
+
+		msg := "Taking offline because head block is %.0f seconds into the future"
+		return resp, fmt.Sprintf(msg, diff)
+	}
+	return agentcheck.NewStatusResponse(agentcheck.Up), "OK"
+}

internal/api/antelope_v1_test.go

@@ -0,0 +1,171 @@
+package api
+
+import (
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+
+	"github.com/eosswedenorg-go/haproxy/agentcheck"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAntelopeV1_Factory(t *testing.T) {
+	api := AntelopeV1Factory(ApiArguments{
+		Url:       "https://api.v1.example.com",
+		Host:      "host.example.com",
+		NumBlocks: 120,
+	})
+
+	expected := NewAntelopeV1("https://api.v1.example.com", "host.example.com", 60)
+
+	assert.IsType(t, expected, api)
+	assert.Equal(t, expected.client.Url, api.(AntelopeV1).client.Url)
+	assert.Equal(t, expected.client.Host, api.(AntelopeV1).client.Host)
+	assert.Equal(t, expected.block_time, api.(AntelopeV1).block_time)
+}
+
+func TestAntelopeV1_LogInfo(t *testing.T) {
+	api := NewAntelopeV1("https://api.v1.example.com", "host.example.com", 120)
+
+	expected := LogParams{"type", "antelope-v1", "url", "https://api.v1.example.com", "host", "host.example.com", "block_time", float64(120)}
+
+	assert.Equal(t, expected, api.LogInfo())
+}
+
+func TestAntelopeV1_SetTime(t *testing.T) {
+	expected := time.Date(2022, 2, 24, 13, 38, 0, 0, time.UTC)
+
+	api := NewAntelopeV1("", "", 60)
+	// Assert that time is NOW (+-10 seconds)
+	assert.InDelta(t, api.GetTime().Unix(), time.Now().In(time.UTC).Unix(), float64(10))
+
+	api.SetTime(expected)
+	assert.Equal(t, expected, api.GetTime())
+}
+
+func TestAntelopeV1_JsonFailure(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		_, err := res.Write([]byte(`!//{invalid-json}!##`))
+		assert.NoError(t, err)
+	}))
+
+	api := NewAntelopeV1(srv.URL, "", 120)
+	check, _ := api.Call(context.Background())
+
+	expected := agentcheck.NewStatusMessageResponse(agentcheck.Fail, "")
+	assert.Equal(t, expected, check)
+}
+
+func TestAntelopeV1_HTTP500Failed(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		res.WriteHeader(500)
+		_, err := res.Write([]byte(`{}`))
+		assert.NoError(t, err)
+	}))
+
+	api := NewAntelopeV1(srv.URL, "", 120)
+	check, status := api.Call(context.Background())
+
+	assert.Equal(t, "server returned HTTP 500 Internal Server Error", status)
+
+	expected := agentcheck.NewStatusMessageResponse(agentcheck.Fail, "")
+	assert.Equal(t, expected, check)
+}
+
+func TestAntelopeV1_LaggingUp(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		if req.URL.String() == "/v1/chain/get_info" {
+			info := `{
+                "server_version": "8f613ec9",
+                "head_block_num": 7272812,
+                "head_block_time": "2022-02-24T13:37:00"
+            }`
+
+			_, err := res.Write([]byte(info))
+			assert.NoError(t, err)
+		}
+	}))
+
+	api := NewAntelopeV1(srv.URL, "", 60)
+	api.SetTime(time.Date(2022, 2, 24, 13, 38, 0, 0, time.UTC))
+	check, status := api.Call(context.Background())
+
+	assert.Equal(t, "OK", status)
+
+	expected := agentcheck.NewStatusResponse(agentcheck.Up)
+	assert.Equal(t, expected, check)
+}
+
+func TestAntelopeV1_LaggingDown(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		if req.URL.String() == "/v1/chain/get_info" {
+			info := `{
+                "server_version": "9a607cce",
+                "head_block_num": 87263,
+                "head_block_time": "2018-01-01T13:37:01"
+            }`
+
+			_, err := res.Write([]byte(info))
+			assert.NoError(t, err)
+		}
+	}))
+
+	api := NewAntelopeV1(srv.URL, "", 60)
+	api.SetTime(time.Date(2018, time.January, 1, 13, 38, 2, 0, time.UTC))
+	check, status := api.Call(context.Background())
+
+	assert.Equal(t, "Taking offline because head block is lagging 61 seconds", status)
+
+	expected := agentcheck.NewStatusMessageResponse(agentcheck.Down, "")
+	assert.Equal(t, expected, check)
+}
+
+func TestAntelopeV1_TimeInFutureUP(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		if req.URL.String() == "/v1/chain/get_info" {
+			info := `{
+                "server_version": "d1bec8d3",
+                "head_block_num": 548847,
+                "head_block_time": "2020-09-22T09:32:00"
+            }`
+
+			_, err := res.Write([]byte(info))
+			assert.NoError(t, err)
+		}
+	}))
+
+	api := NewAntelopeV1(srv.URL, "", 120)
+	api.SetTime(time.Date(2020, 9, 22, 9, 30, 0, 0, time.UTC))
+	check, status := api.Call(context.Background())
+
+	assert.Equal(t, "OK", status)
+
+	expected := agentcheck.NewStatusResponse(agentcheck.Up)
+	assert.Equal(t, expected, check)
+}
+
+func TestAntelopeV1_TimeInFutureDown(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		if req.URL.String() == "/v1/chain/get_info" {
+			info := `{
+                "server_version": "c879d231",
+                "head_block_num": 2637621,
+                "head_block_time": "2019-04-14T12:02:01"
+            }`
+
+			_, err := res.Write([]byte(info))
+			assert.NoError(t, err)
+		}
+	}))
+
+	api := NewAntelopeV1(srv.URL, "", 120)
+	api.SetTime(time.Date(2019, time.April, 14, 12, 0, 0, 0, time.UTC))
+	check, status := api.Call(context.Background())
+
+	assert.Equal(t, "Taking offline because head block is -121 seconds into the future", status)
+
+	expected := agentcheck.NewStatusMessageResponse(agentcheck.Down, "")
+	assert.Equal(t, expected, check)
+}

internal/api/antelope_v2.go

@@ -0,0 +1,85 @@
+package api
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/eosswedenorg-go/haproxy/agentcheck"
+	"github.com/eosswedenorg-go/leapapi"
+	"github.com/eosswedenorg/antelope-api-healthcheck/internal/utils"
+)
+
+type AntelopeV2 struct {
+	client leapapi.Client
+	offset int64
+}
+
+func AntelopeV2Factory(args ApiArguments) ApiInterface {
+	return NewAntelopeV2(args.Url, args.Host, int64(args.NumBlocks))
+}
+
+func NewAntelopeV2(url string, host string, offset int64) AntelopeV2 {
+	api := AntelopeV2{
+		client: *leapapi.New(url),
+		offset: offset,
+	}
+
+	api.client.Host = host
+
+	return api
+}
+
+func (e AntelopeV2) LogInfo() LogParams {
+	p := LogParams{
+		"type", "antelope-v2",
+		"url", e.client.Url,
+	}
+
+	if len(e.client.Host) > 0 {
+		p.Add("host", e.client.Host)
+	}
+
+	p.Add("offset", e.offset)
+
+	return p
+}
+
+func (e AntelopeV2) Call(ctx context.Context) (agentcheck.Response, string) {
+	health, err := e.client.GetHealth(ctx)
+	if err != nil {
+		resp := agentcheck.NewStatusMessageResponse(agentcheck.Fail, "")
+		return resp, err.Error()
+	}
+
+	// Fetch elasticsearch and nodeos block numbers from json.
+	var es_block int64 = 0
+	var node_block int64 = 0
+
+	for _, v := range health.Health {
+		if v.Name == "Elasticsearch" {
+			es_block = utils.JsonGetInt64(v.Data["last_indexed_block"])
+		} else if v.Name == "NodeosRPC" {
+			node_block = utils.JsonGetInt64(v.Data["head_block_num"])
+		}
+	}
+
+	// Error out if ether or both are zero.
+	if es_block == 0 || node_block == 0 {
+		msg := fmt.Sprintf("Failed to get Elasticsearch and/or nodeos "+
+			"block numbers (es: %d, eos: %d)", es_block, node_block)
+
+		resp := agentcheck.NewStatusMessageResponse(agentcheck.Fail, "")
+		return resp, msg
+	}
+
+	// Check if ES is behind or in the future.
+	diff := node_block - es_block
+	if diff > e.offset {
+		resp := agentcheck.NewStatusMessageResponse(agentcheck.Down, "")
+		return resp, fmt.Sprintf("Taking offline because Elastic is %d blocks behind", diff)
+	} else if diff < -e.offset {
+		resp := agentcheck.NewStatusMessageResponse(agentcheck.Down, "")
+		return resp, fmt.Sprintf("Taking offline because Elastic is %d blocks into the future", -1*diff)
+	}
+	return agentcheck.NewStatusResponse(agentcheck.Up), "OK"
+}

internal/api/antelope_v2_test.go

@@ -0,0 +1,382 @@
+package api
+
+import (
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/eosswedenorg-go/haproxy/agentcheck"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAntelopeV2_Factory(t *testing.T) {
+	api := AntelopeV2Factory(ApiArguments{
+		Url:       "https://api.v2.example.com",
+		Host:      "host.example.com",
+		NumBlocks: 120,
+	})
+
+	expected := NewAntelopeV2("https://api.v2.example.com", "host.example.com", 120)
+
+	assert.IsType(t, expected, api)
+	assert.Equal(t, expected.client.Url, api.(AntelopeV2).client.Url)
+	assert.Equal(t, expected.client.Host, api.(AntelopeV2).client.Host)
+	assert.Equal(t, expected.offset, api.(AntelopeV2).offset)
+}
+
+func TestAntelopeV2_LogInfo(t *testing.T) {
+	api := NewAntelopeV2("https://api.v2.example.com", "host.example.com", 120)
+
+	expected := LogParams{"type", "antelope-v2", "url", "https://api.v2.example.com", "host", "host.example.com", "offset", int64(120)}
+
+	assert.Equal(t, expected, api.LogInfo())
+}
+
+func TestAntelopeV2_JsonFailure(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		_, err := res.Write([]byte(`!//{invalid-json}!##`))
+		assert.NoError(t, err)
+	}))
+
+	api := NewAntelopeV2(srv.URL, "", 120)
+	check, _ := api.Call(context.Background())
+
+	expected := agentcheck.NewStatusMessageResponse(agentcheck.Fail, "")
+	assert.Equal(t, expected, check)
+}
+
+func TestAntelopeV2_HTTP500Failed(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		res.WriteHeader(500)
+		_, err := res.Write([]byte(`{}`))
+		assert.NoError(t, err)
+	}))
+
+	api := NewAntelopeV2(srv.URL, "", 120)
+	check, status := api.Call(context.Background())
+
+	assert.Equal(t, "server returned HTTP 500 Internal Server Error", status)
+
+	expected := agentcheck.NewStatusMessageResponse(agentcheck.Fail, "")
+	assert.Equal(t, expected, check)
+}
+
+func TestAntelopeV2_LaggingUp(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		if req.URL.String() == "/v2/health" {
+			info := `{
+                "version": "1.0",
+                "version_hash": "028d5a34463884fcbe2ecfd3c0fcb3b5d4d538f4fd64803c1ef7209c85f2f266",
+                "host": "api.test.com:443",
+                "health": [
+                    {
+                        "service": "NodeosRPC",
+                        "status": "OK",
+                        "service_data": {
+                            "head_block_num": 263148621,
+                            "head_block_time": "2022-08-17T14:16:36.000",
+                            "time_offset": 190,
+                            "last_irreversible_block": 263148296,
+                            "chain_id": "f8c74ccb7f9dea6f26a6d7f786809ddd1bce9fada3867f567dd83691b5348534"
+                        },
+                        "time": 1642174781678
+                    },
+                    {
+                        "service": "Elasticsearch",
+                        "status": "OK",
+                        "service_data": {
+                            "last_indexed_block": 263148121,
+                            "total_indexed_blocks": 263148121,
+                            "active_shards": "100.0%"
+                        },
+                        "time": 1642174781736
+                    }
+                ]
+            }`
+
+			_, err := res.Write([]byte(info))
+			assert.NoError(t, err)
+		}
+	}))
+
+	api := NewAntelopeV2(srv.URL, "", 500)
+	check, status := api.Call(context.Background())
+
+	assert.Equal(t, "OK", status)
+
+	expected := agentcheck.NewStatusResponse(agentcheck.Up)
+	assert.Equal(t, expected, check)
+}
+
+func TestAntelopeV2_LaggingDown(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		if req.URL.String() == "/v2/health" {
+			info := `{
+                "version": "1.0",
+                "version_hash": "028d5a34463884fcbe2ecfd3c0fcb3b5d4d538f4fd64803c1ef7209c85f2f266",
+                "host": "api.test.com:443",
+                "health": [
+                    {
+                        "service": "NodeosRPC",
+                        "status": "OK",
+                        "service_data": {
+                            "head_block_num": 263148621,
+                            "head_block_time": "2022-08-17T14:16:36.000",
+                            "time_offset": 190,
+                            "last_irreversible_block": 263148296,
+                            "chain_id": "f8c74ccb7f9dea6f26a6d7f786809ddd1bce9fada3867f567dd83691b5348534"
+                        },
+                        "time": 1642174781678
+                    },
+                    {
+                        "service": "Elasticsearch",
+                        "status": "OK",
+                        "service_data": {
+                            "last_indexed_block": 263148121,
+                            "total_indexed_blocks": 263148121,
+                            "active_shards": "100.0%"
+                        },
+                        "time": 1642174781736
+                    }
+                ]
+            }`
+
+			_, err := res.Write([]byte(info))
+			assert.NoError(t, err)
+		}
+	}))
+
+	api := NewAntelopeV2(srv.URL, "", 499)
+	check, status := api.Call(context.Background())
+
+	assert.Equal(t, "Taking offline because Elastic is 500 blocks behind", status)
+
+	expected := agentcheck.NewStatusMessageResponse(agentcheck.Down, "")
+	assert.Equal(t, expected, check)
+}
+
+func TestAntelopeV2_LaggingESInFutureUP(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		if req.URL.String() == "/v2/health" {
+			info := `{
+                "version": "1.0",
+                "version_hash": "028d5a34463884fcbe2ecfd3c0fcb3b5d4d538f4fd64803c1ef7209c85f2f266",
+                "host": "api.test.com:443",
+                "health": [
+                    {
+                        "service": "NodeosRPC",
+                        "status": "OK",
+                        "service_data": {
+                            "head_block_num": 263148621,
+                            "head_block_time": "2022-08-17T14:16:36.000",
+                            "time_offset": 190,
+                            "last_irreversible_block": 263148296,
+                            "chain_id": "f8c74ccb7f9dea6f26a6d7f786809ddd1bce9fada3867f567dd83691b5348534"
+                        },
+                        "time": 1642174781678
+                    },
+                    {
+                        "service": "Elasticsearch",
+                        "status": "OK",
+                        "service_data": {
+                            "last_indexed_block": 263148821,
+                            "total_indexed_blocks": 263148821,
+                            "active_shards": "100.0%"
+                        },
+                        "time": 1642174781736
+                    }
+                ]
+            }`
+
+			_, err := res.Write([]byte(info))
+			assert.NoError(t, err)
+		}
+	}))
+
+	api := NewAntelopeV2(srv.URL, "", 200)
+	check, status := api.Call(context.Background())
+
+	assert.Equal(t, "OK", status)
+
+	expected := agentcheck.NewStatusResponse(agentcheck.Up)
+	assert.Equal(t, expected, check)
+}
+
+func TestAntelopeV2_LaggingESInFutureDown(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		if req.URL.String() == "/v2/health" {
+			info := `{
+                "version": "1.0",
+                "version_hash": "028d5a34463884fcbe2ecfd3c0fcb3b5d4d538f4fd64803c1ef7209c85f2f266",
+                "host": "api.test.com:443",
+                "health": [
+                    {
+                        "service": "NodeosRPC",
+                        "status": "OK",
+                        "service_data": {
+                            "head_block_num": 263148621,
+                            "head_block_time": "2022-08-17T14:16:36.000",
+                            "time_offset": 190,
+                            "last_irreversible_block": 263148296,
+                            "chain_id": "f8c74ccb7f9dea6f26a6d7f786809ddd1bce9fada3867f567dd83691b5348534"
+                        },
+                        "time": 1642174781678
+                    },
+                    {
+                        "service": "Elasticsearch",
+                        "status": "OK",
+                        "service_data": {
+                            "last_indexed_block": 263148822,
+                            "total_indexed_blocks": 263148822,
+                            "active_shards": "100.0%"
+                        },
+                        "time": 1642174781736
+                    }
+                ]
+            }`
+
+			_, err := res.Write([]byte(info))
+			assert.NoError(t, err)
+		}
+	}))
+
+	api := NewAntelopeV2(srv.URL, "", 200)
+	check, status := api.Call(context.Background())
+
+	assert.Equal(t, "Taking offline because Elastic is 201 blocks into the future", status)
+
+	expected := agentcheck.NewStatusMessageResponse(agentcheck.Down, "")
+	assert.Equal(t, expected, check)
+}
+
+func TestAntelopeV2_ElasticsFailed(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		if req.URL.String() == "/v2/health" {
+			info := `{
+                "version": "1.0",
+                "version_hash": "028d5a34463884fcbe2ecfd3c0fcb3b5d4d538f4fd64803c1ef7209c85f2f266",
+                "host": "api.test.com:443",
+                "health": [
+                    {
+                        "service": "NodeosRPC",
+                        "status": "OK",
+                        "service_data": {
+                            "head_block_num": 263148621,
+                            "head_block_time": "2022-08-17T14:16:36.000",
+                            "time_offset": 190,
+                            "last_irreversible_block": 263148296,
+                            "chain_id": "f8c74ccb7f9dea6f26a6d7f786809ddd1bce9fada3867f567dd83691b5348534"
+                        },
+                        "time": 1660745796190
+                    },
+                    {
+                        "service": "Elasticsearch",
+                        "status": "DOWN",
+                        "service_data": {
+                            "last_indexed_block": 0,
+                            "total_indexed_blocks": 0,
+                            "active_shards": "0.0%"
+                        },
+                        "time": 1660745796204
+                    }
+                ]
+            }`
+
+			_, err := res.Write([]byte(info))
+			assert.NoError(t, err)
+		}
+	}))
+
+	api := NewAntelopeV2(srv.URL, "", 500)
+	check, status := api.Call(context.Background())
+
+	assert.Equal(t, "Failed to get Elasticsearch and/or nodeos block numbers (es: 0, eos: 263148621)", status)
+
+	expected := agentcheck.NewStatusMessageResponse(agentcheck.Fail, "")
+	assert.Equal(t, expected, check)
+}
+
+func TestAntelopeV2_NodeosRPCFailed(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		if req.URL.String() == "/v2/health" {
+			info := `{
+                "version": "1.0",
+                "version_hash": "028d5a34463884fcbe2ecfd3c0fcb3b5d4d538f4fd64803c1ef7209c85f2f266",
+                "host": "api.test.com:443",
+                "health": [
+                    {
+                        "service": "NodeosRPC",
+                        "status": "DOWN",
+                        "service_data": {
+                            "head_block_num": 0,
+                            "head_block_time": "",
+                            "time_offset": 0,
+                            "last_irreversible_block": 0,
+                            "chain_id": ""
+                        },
+                        "time": 1642174781678
+                    },
+                    {
+                        "service": "Elasticsearch",
+                        "status": "DOWN",
+                        "service_data": {
+                            "last_indexed_block": 263148121,
+                            "total_indexed_blocks": 263148121,
+                            "active_shards": "100.0%"
+                        },
+                        "time": 1642174781736
+                    }
+                ]
+            }`
+
+			_, err := res.Write([]byte(info))
+			assert.NoError(t, err)
+		}
+	}))
+
+	api := NewAntelopeV2(srv.URL, "", 500)
+	check, status := api.Call(context.Background())
+
+	assert.Equal(t, "Failed to get Elasticsearch and/or nodeos block numbers (es: 263148121, eos: 0)", status)
+
+	expected := agentcheck.NewStatusMessageResponse(agentcheck.Fail, "")
+	assert.Equal(t, expected, check)
+}
+
+func TestAntelopeV2_ElasticsNodeosRPCFailed(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		if req.URL.String() == "/v2/health" {
+			info := `{
+                "version": "1.0",
+                "version_hash": "028d5a34463884fcbe2ecfd3c0fcb3b5d4d538f4fd64803c1ef7209c85f2f266",
+                "host": "api.test.com:443",
+                "health": [
+                    {
+                        "service": "NodeosRPC",
+                        "status": "DOWN",
+                        "service_data": {},
+                        "time": 1642174781678
+                    },
+                    {
+                        "service": "Elasticsearch",
+                        "status": "DOWN",
+                        "service_data": {},
+                        "time": 1642174781736
+                    }
+                ]
+            }`
+
+			_, err := res.Write([]byte(info))
+			assert.NoError(t, err)
+		}
+	}))
+
+	api := NewAntelopeV2(srv.URL, "", 500)
+	check, status := api.Call(context.Background())
+
+	assert.Equal(t, "Failed to get Elasticsearch and/or nodeos block numbers (es: 0, eos: 0)", status)
+
+	expected := agentcheck.NewStatusMessageResponse(agentcheck.Fail, "")
+	assert.Equal(t, expected, check)
+}

internal/api/atomicasset.go

@@ -0,0 +1,91 @@
+package api
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/eosswedenorg-go/atomicasset"
+	"github.com/eosswedenorg-go/haproxy/agentcheck"
+	"github.com/eosswedenorg/antelope-api-healthcheck/internal/utils"
+)
+
+type AtomicAsset struct {
+	utils.Time
+
+	url        string
+	host       string
+	block_time float64
+}
+
+func AtomicAssetFactory(args ApiArguments) ApiInterface {
+	return NewAtomicAsset(args.Url, args.Host, float64(args.NumBlocks/2))
+}
+
+func NewAtomicAsset(url string, host string, block_time float64) AtomicAsset {
+	return AtomicAsset{
+		url:        url,
+		host:       host,
+		block_time: block_time,
+	}
+}
+
+func (e AtomicAsset) LogInfo() LogParams {
+	p := LogParams{
+		"type", "atomicasset",
+		"url", e.url,
+		"block_time", e.block_time,
+	}
+
+	if len(e.host) > 0 {
+		p.Add("host", e.host)
+	}
+
+	return p
+}
+
+func (e AtomicAsset) Call(ctx context.Context) (agentcheck.Response, string) {
+	client := atomicasset.NewWithContext(e.url, ctx)
+	client.Host = e.host
+
+	h, err := client.GetHealth()
+	if err != nil {
+		resp := agentcheck.NewStatusMessageResponse(agentcheck.Fail, "")
+		return resp, err.Error()
+	}
+
+	// Check HTTP Status Code
+	if h.HTTPStatusCode > 299 {
+		resp := agentcheck.NewStatusMessageResponse(agentcheck.Down, "")
+		msg := "Taking offline because %v was received from backend"
+		return resp, fmt.Sprintf(msg, h.HTTPStatusCode)
+	}
+
+	// Check postgres
+	if h.Data.Postgres.Status != "OK" {
+		resp := agentcheck.NewStatusMessageResponse(agentcheck.Down, "")
+		msg := "Taking offline because Postgres reported '%s'"
+		return resp, fmt.Sprintf(msg, h.Data.Postgres.Status)
+	}
+
+	// Check redis
+	if h.Data.Redis.Status != "OK" {
+		resp := agentcheck.NewStatusMessageResponse(agentcheck.Down, "")
+		msg := "Taking offline because Redis reported '%s'"
+		return resp, fmt.Sprintf(msg, h.Data.Redis.Status)
+	}
+
+	// Validate head block.
+	diff := e.GetTime().Sub(h.Data.Chain.HeadTime.Time()).Seconds()
+
+	if diff > e.block_time {
+		resp := agentcheck.NewStatusMessageResponse(agentcheck.Down, "")
+		msg := "Taking offline because head block is lagging %.0f seconds"
+		return resp, fmt.Sprintf(msg, diff)
+	} else if diff < -e.block_time {
+		resp := agentcheck.NewStatusMessageResponse(agentcheck.Down, "")
+		msg := "Taking offline because head block is %.0f seconds into the future"
+		return resp, fmt.Sprintf(msg, diff)
+	}
+
+	return agentcheck.NewStatusResponse(agentcheck.Up), "OK"
+}

internal/api/atomicasset_test.go

@@ -0,0 +1,316 @@
+package api
+
+import (
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+
+	"github.com/eosswedenorg-go/haproxy/agentcheck"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAtomicAsset_Factory(t *testing.T) {
+	api := AtomicAssetFactory(ApiArguments{
+		Url:       "https://atomic.example.com",
+		NumBlocks: 120,
+	})
+
+	expected := NewAtomicAsset("https://atomic.example.com", "", 60)
+
+	assert.IsType(t, expected, api)
+	assert.Equal(t, expected.url, api.(AtomicAsset).url)
+	assert.Equal(t, expected.block_time, api.(AtomicAsset).block_time)
+}
+
+func TestAtomicAsset_LogInfo(t *testing.T) {
+	api := NewAtomicAsset("https://atomic.example.com", "", 120)
+
+	expected := LogParams{"type", "atomicasset", "url", "https://atomic.example.com", "block_time", float64(120)}
+
+	assert.Equal(t, expected, api.LogInfo())
+}
+
+func TestAtomicAsset_LogInfoWithHost(t *testing.T) {
+	api := NewAtomicAsset("https://atomic.example.com", "some.other.host", 120)
+
+	expected := LogParams{"type", "atomicasset", "url", "https://atomic.example.com", "block_time", float64(120), "host", "some.other.host"}
+
+	assert.Equal(t, expected, api.LogInfo())
+}
+
+func TestAtomicAsset_SetTime(t *testing.T) {
+	expected := time.Date(2019, 3, 18, 20, 29, 32, 0, time.UTC)
+
+	api := NewAtomicAsset("", "", 60)
+	// Assert that time is NOW (+-10 seconds)
+	assert.InDelta(t, api.GetTime().Unix(), time.Now().In(time.UTC).Unix(), float64(10))
+
+	api.SetTime(expected)
+	assert.Equal(t, expected, api.GetTime())
+}
+
+func TestAtomicAsset_JsonFailure(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		_, err := res.Write([]byte(`!//{invalid-json}!##`))
+		assert.NoError(t, err)
+	}))
+
+	api := NewAtomicAsset(srv.URL, "", 120)
+	check, _ := api.Call(context.Background())
+
+	expected := agentcheck.NewStatusMessageResponse(agentcheck.Fail, "")
+	assert.Equal(t, expected, check)
+}
+
+func TestAtomicAsset_HTTP500Down(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		res.Header().Add("Content-type", "application/json; charset=utf-8")
+		res.WriteHeader(500)
+		_, err := res.Write([]byte(`{}`))
+		assert.NoError(t, err)
+	}))
+
+	api := NewAtomicAsset(srv.URL, "", 120)
+	check, status := api.Call(context.Background())
+
+	assert.Equal(t, "Taking offline because 500 was received from backend", status)
+
+	expected := agentcheck.NewStatusMessageResponse(agentcheck.Down, "")
+	assert.Equal(t, expected, check)
+}
+
+func TestAtomicAsset_LaggingUp(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		if req.URL.String() == "/health" {
+			payload := `{
+                "success":true,
+                "data":{
+                    "version":"1.0.0",
+                    "postgres":{
+                        "status":"OK"
+                    },
+                    "redis":{
+                        "status":"OK"
+                    },
+                    "chain":{
+                        "status":"OK",
+                        "head_block":2173612361,
+                        "head_time":1759953927000
+                    }
+                },
+                "query_time":1759953929542
+            }`
+
+			res.Header().Add("Content-type", "application/json; charset=utf-8")
+			_, err := res.Write([]byte(payload))
+			assert.NoError(t, err)
+		}
+	}))
+
+	api := NewAtomicAsset(srv.URL, "", 120)
+	api.SetTime(time.Date(2025, 10, 8, 20, 7, 27, 0, time.UTC))
+
+	check, status := api.Call(context.Background())
+
+	assert.Equal(t, "OK", status)
+
+	expected := agentcheck.NewStatusResponse(agentcheck.Up)
+	assert.Equal(t, expected, check)
+}
+
+func TestAtomicAsset_LaggingDown(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		if req.URL.String() == "/health" {
+			payload := `{
+                "success":true,
+                "data":{
+                    "version":"1.0.0",
+                    "postgres":{
+                        "status":"OK"
+                    },
+                    "redis":{
+                        "status":"OK"
+                    },
+                    "chain":{
+                        "status":"OK",
+                        "head_block":213671263812,
+                        "head_time":1533451894000
+                    }
+                },
+                "query_time":1533451895542
+            }`
+
+			res.Header().Add("Content-type", "application/json; charset=utf-8")
+			_, err := res.Write([]byte(payload))
+			assert.NoError(t, err)
+		}
+	}))
+
+	api := NewAtomicAsset(srv.URL, "", 120)
+	api.SetTime(time.Date(2018, 8, 5, 6, 53, 35, 0, time.UTC))
+
+	check, status := api.Call(context.Background())
+
+	assert.Equal(t, "Taking offline because head block is lagging 121 seconds", status)
+
+	expected := agentcheck.NewStatusMessageResponse(agentcheck.Down, "")
+	assert.Equal(t, expected, check)
+}
+
+func TestAtomicAsset_InFutureUp(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		if req.URL.String() == "/health" {
+			payload := `{
+                "success":true,
+                "data":{
+                    "version":"1.0.0",
+                    "postgres":{
+                        "status":"OK"
+                    },
+                    "redis":{
+                        "status":"OK"
+                    },
+                    "chain":{
+                        "status":"OK",
+                        "head_block":213671263812,
+                        "head_time":1728954676500
+                    }
+                },
+                "query_time":1728954678231
+            }`
+
+			res.Header().Add("Content-type", "application/json; charset=utf-8")
+			_, err := res.Write([]byte(payload))
+			assert.NoError(t, err)
+		}
+	}))
+
+	api := NewAtomicAsset(srv.URL, "", 120)
+	api.SetTime(time.Date(2024, 10, 15, 1, 9, 16, 500*int(time.Millisecond), time.UTC))
+
+	check, status := api.Call(context.Background())
+
+	assert.Equal(t, "OK", status)
+
+	expected := agentcheck.NewStatusResponse(agentcheck.Up)
+	assert.Equal(t, expected, check)
+}
+
+func TestAtomicAsset_InFutureDown(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		if req.URL.String() == "/health" {
+			payload := `{
+                "success":true,
+                "data":{
+                    "version":"1.0.0",
+                    "postgres":{
+                        "status":"OK"
+                    },
+                    "redis":{
+                        "status":"OK"
+                    },
+                    "chain":{
+                        "status":"OK",
+                        "head_block":213671263812,
+                        "head_time":1041122824500
+                    }
+                },
+                "query_time":1041122832231
+            }`
+
+			res.Header().Add("Content-type", "application/json; charset=utf-8")
+			_, err := res.Write([]byte(payload))
+			assert.NoError(t, err)
+		}
+	}))
+
+	api := NewAtomicAsset(srv.URL, "", 120)
+	api.SetTime(time.Date(2002, 12, 29, 0, 45, 3, 500*int(time.Millisecond), time.UTC))
+
+	check, status := api.Call(context.Background())
+
+	assert.Equal(t, "Taking offline because head block is -121 seconds into the future", status)
+
+	expected := agentcheck.NewStatusMessageResponse(agentcheck.Down, "")
+	assert.Equal(t, expected, check)
+}
+
+func TestAtomicAsset_RedisDown(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		if req.URL.String() == "/health" {
+			payload := `{
+                "success":true,
+                "data":{
+                    "version":"1.0.0",
+                    "postgres":{
+                        "status":"OK"
+                    },
+                    "redis":{
+                        "status":"DOWN"
+                    },
+                    "chain":{
+                        "status":"OK",
+                        "head_block":213671263812,
+                        "head_time":1426072770500
+                    }
+                },
+                "query_time":1426072775872
+            }`
+
+			res.Header().Add("Content-type", "application/json; charset=utf-8")
+			_, err := res.Write([]byte(payload))
+			assert.NoError(t, err)
+		}
+	}))
+
+	api := NewAtomicAsset(srv.URL, "", 120)
+	api.SetTime(time.Date(2015, 3, 11, 11, 19, 30, 500*int(time.Millisecond), time.UTC))
+
+	check, status := api.Call(context.Background())
+
+	assert.Equal(t, "Taking offline because Redis reported 'DOWN'", status)
+
+	expected := agentcheck.NewStatusMessageResponse(agentcheck.Down, "")
+	assert.Equal(t, expected, check)
+}
+
+func TestAtomicAsset_PostgresDown(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) {
+		if req.URL.String() == "/health" {
+			payload := `{
+                "success":true,
+                "data":{
+                    "version":"1.0.0",
+                    "postgres":{
+                        "status":"DOWN"
+                    },
+                    "redis":{
+                        "status":"OK"
+                    },
+                    "chain":{
+                        "status":"OK",
+                        "head_block":213671263812,
+                        "head_time":1562868371500
+                    }
+                },
+                "query_time":156286837143
+            }`
+
+			res.Header().Add("Content-type", "application/json; charset=utf-8")
+			_, err := res.Write([]byte(payload))
+			assert.NoError(t, err)
+		}
+	}))
+
+	api := NewAtomicAsset(srv.URL, "", 120)
+	api.SetTime(time.Date(2019, 7, 11, 18, 6, 11, 500*int(time.Millisecond), time.UTC))
+
+	check, status := api.Call(context.Background())
+
+	assert.Equal(t, "Taking offline because Postgres reported 'DOWN'", status)
+
+	expected := agentcheck.NewStatusMessageResponse(agentcheck.Down, "")
+	assert.Equal(t, expected, check)
+}

internal/api/debug.go

@@ -0,0 +1,47 @@
+package api
+
+import (
+	"context"
+	"strings"
+
+	"github.com/eosswedenorg-go/haproxy/agentcheck"
+)
+
+type DebugApi struct {
+	response agentcheck.Response
+}
+
+func parseResponse(resp string) agentcheck.Response {
+	parts := strings.SplitN(resp, "#", 2)
+
+	// Status with message
+	if len(parts) > 1 {
+		rtype := agentcheck.StatusMessageResponseType(parts[0])
+		return agentcheck.NewStatusMessageResponse(rtype, parts[1])
+	}
+
+	// Only status.
+	rtype := agentcheck.StatusResponseType(resp)
+	return agentcheck.NewStatusResponse(rtype)
+}
+
+func DebugApiFactory(args ApiArguments) ApiInterface {
+	return NewDebugApi(args.Url)
+}
+
+func NewDebugApi(response string) DebugApi {
+	return DebugApi{
+		response: parseResponse(response),
+	}
+}
+
+func (d DebugApi) LogInfo() LogParams {
+	return LogParams{
+		"type", "Debug",
+		"response", strings.TrimSpace(d.response.String()),
+	}
+}
+
+func (d DebugApi) Call(_ context.Context) (agentcheck.Response, string) {
+	return d.response, ""
+}

internal/api/debug_test.go

@@ -0,0 +1,67 @@
+package api
+
+import (
+	"context"
+	"reflect"
+	"testing"
+
+	"github.com/eosswedenorg-go/haproxy/agentcheck"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestDebugApi_Factory(t *testing.T) {
+	api := DebugApiFactory(ApiArguments{
+		Url:       "up",
+		Host:      "host",
+		NumBlocks: 40,
+	})
+
+	assert.IsType(t, DebugApi{}, api)
+	assert.Equal(t, api.(DebugApi).response, agentcheck.NewStatusResponse(agentcheck.Up))
+}
+
+func TestNewDebugApi(t *testing.T) {
+	type args struct {
+		response string
+	}
+	tests := []struct {
+		name string
+		args args
+		want DebugApi
+	}{
+		{"Up", args{"up"}, DebugApi{response: agentcheck.NewStatusResponse(agentcheck.Up)}},
+		{"Down", args{"down"}, DebugApi{response: agentcheck.NewStatusResponse("down")}},
+		{"DownMessage", args{"down#some message"}, DebugApi{response: agentcheck.NewStatusMessageResponse(agentcheck.Down, "some message")}},
+		{"Ready", args{"ready"}, DebugApi{response: agentcheck.NewStatusResponse(agentcheck.Ready)}},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := NewDebugApi(tt.args.response); !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("NewDebugApi() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestDebugApi_LogInfo(t *testing.T) {
+	expected := LogParams{"type", "Debug", "response", "up"}
+
+	api := DebugApi{
+		response: agentcheck.NewStatusResponse(agentcheck.Up),
+	}
+
+	assert.Equal(t, api.LogInfo(), expected)
+}
+
+func TestDebugApi_Call(t *testing.T) {
+	expected := agentcheck.NewStatusMessageResponse(agentcheck.Stopped, "message")
+
+	api := DebugApi{
+		response: expected,
+	}
+
+	response, msg := api.Call(context.Background())
+
+	assert.Equal(t, response, expected)
+	assert.Equal(t, msg, "")
+}

internal/api/interface.go

@@ -0,0 +1,33 @@
+package api
+
+import (
+	"context"
+
+	"github.com/eosswedenorg-go/haproxy/agentcheck"
+)
+
+/**
+ * Generic struct that is passed to factory functions
+ * to configure the API request.
+ */
+type ApiArguments struct {
+	Url       string
+	Host      string
+	NumBlocks int
+}
+
+/**
+ * Factory function
+ *
+ * Each API must implement this function and process `args`
+ * returing a instance of it's implementation of the ApiInterface
+ */
+type Factory func(args ApiArguments) ApiInterface
+
+type ApiInterface interface {
+	// Returns Logging information
+	LogInfo() LogParams
+
+	// Call api and validate it's status.
+	Call(ctx context.Context) (agentcheck.Response, string)
+}

internal/api/log_params.go

@@ -0,0 +1,13 @@
+package api
+
+type LogParams []interface{}
+
+func (p *LogParams) Add(field string, value interface{}) {
+	*p = append(*p, field, value)
+}
+
+// Syntactic sugar for append(p, other...)
+// Returns a new instance of LogParams with all values from both p and other
+func (p LogParams) Combine(other LogParams) LogParams {
+	return append(p, other...)
+}

internal/api/log_params_test.go

@@ -0,0 +1,47 @@
+package api
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestLogParams(t *testing.T) {
+	type test_struct struct {
+		First  string
+		Second int
+	}
+
+	p := LogParams{}
+
+	p.Add("one", 1)
+	p.Add("string", "str")
+	p.Add("struct", test_struct{First: "first_string", Second: 1234})
+
+	expected := []interface{}([]interface{}{
+		"one", 1,
+		"string", "str",
+		"struct",
+		test_struct{
+			First:  "first_string",
+			Second: 1234,
+		},
+	})
+
+	assert.ElementsMatch(t, expected, p)
+}
+
+func TestLogParams_Combine(t *testing.T) {
+	a := LogParams{"one", 1, "string1", "str1"}
+
+	b := LogParams{"two", 2, "string2", "str2"}
+
+	expected := LogParams{
+		"one", 1,
+		"string1", "str1",
+		"two", 2,
+		"string2", "str2",
+	}
+
+	assert.Equal(t, expected, a.Combine(b))
+}

internal/api/make.go

@@ -0,0 +1,20 @@
+package api
+
+import (
+	"fmt"
+)
+
+func Make(name string, args ApiArguments) (ApiInterface, error) {
+	factories := map[string]Factory{
+		"v1":     AntelopeV1Factory,
+		"v2":     AntelopeV2Factory,
+		"atomic": AtomicAssetFactory,
+		"debug":  DebugApiFactory,
+	}
+
+	if factory, ok := factories[name]; ok {
+		return factory(args), nil
+	}
+
+	return nil, fmt.Errorf("invalid API '%s'", name)
+}

internal/api/make_test.go

@@ -0,0 +1,37 @@
+package api
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestMakeV1(t *testing.T) {
+	api, err := Make("v1", ApiArguments{})
+	assert.NoError(t, err)
+	assert.IsType(t, AntelopeV1{}, api)
+}
+
+func TestMakeV2(t *testing.T) {
+	api, err := Make("v2", ApiArguments{})
+	assert.NoError(t, err)
+	assert.IsType(t, AntelopeV2{}, api)
+}
+
+func TestMakeAtomic(t *testing.T) {
+	api, err := Make("atomic", ApiArguments{})
+	assert.NoError(t, err)
+	assert.IsType(t, AtomicAsset{}, api)
+}
+
+func TestMakeDebug(t *testing.T) {
+	api, err := Make("debug", ApiArguments{})
+	assert.NoError(t, err)
+	assert.IsType(t, DebugApi{}, api)
+}
+
+func TestMakeInvalid(t *testing.T) {
+	api, err := Make("invalid", ApiArguments{})
+	assert.Error(t, err)
+	assert.Nil(t, api)
+}

internal/server/parse_request.go

@@ -0,0 +1,45 @@
+package server
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+
+	"github.com/eosswedenorg/antelope-api-healthcheck/internal/api"
+)
+
+func ParseArguments(args []string) api.ApiArguments {
+	a := api.ApiArguments{
+		NumBlocks: 10,
+	}
+
+	// 1. url (scheme + ip/domain + port)
+	a.Url = args[0]
+
+	// 2. num blocks
+	if len(args) > 1 {
+		num, err := strconv.ParseInt(args[1], 10, 32)
+		if err == nil {
+			a.NumBlocks = int(num)
+		}
+	}
+
+	// 3. Host
+	if len(args) > 2 {
+		a.Host = args[2]
+	}
+
+	return a
+}
+
+func ParseRequest(request string) (api.ApiInterface, error) {
+	p := strings.Split(strings.TrimSpace(request), "|")
+
+	if len(p) < 2 {
+		return nil, fmt.Errorf("invalid number of parameters in agent request")
+	}
+
+	a := ParseArguments(p[1:])
+
+	return api.Make(p[0], a)
+}

internal/server/parse_request_test.go

@@ -0,0 +1,112 @@
+package server
+
+import (
+	"testing"
+
+	"github.com/eosswedenorg/antelope-api-healthcheck/internal/api"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestParseRequest_WithInvalidApi(t *testing.T) {
+	api, err := ParseRequest("invalid|http://api.example.com")
+	assert.Error(t, err)
+	assert.Equal(t, err.Error(), "invalid API 'invalid'")
+	assert.Nil(t, api)
+}
+
+func TestParseRequest_WithInvalidParams(t *testing.T) {
+	api, err := ParseRequest("v1")
+	assert.Error(t, err)
+	assert.Equal(t, err.Error(), "invalid number of parameters in agent request")
+	assert.Nil(t, api)
+}
+
+//  AntelopeV1
+// --------------------------------
+
+func TestParseRequest_AntelopeV1(t *testing.T) {
+	expected := api.NewAntelopeV1("http://api.example.com", "", 5)
+
+	api, err := ParseRequest("v1|http://api.example.com")
+	assert.NoError(t, err)
+	assert.Equal(t, expected.LogInfo(), api.LogInfo())
+}
+
+func TestParseRequest_AntelopeV1WithBlockNumber(t *testing.T) {
+	expected := api.NewAntelopeV1("http://api.example.com", "", 1000)
+
+	api, err := ParseRequest("v1|http://api.example.com|2000")
+	assert.NoError(t, err)
+	assert.Equal(t, expected.LogInfo(), api.LogInfo())
+}
+
+func TestParseRequest_AntelopeV1Full(t *testing.T) {
+	expected := api.NewAntelopeV1("http://api.example.com", "http://host.example.com", 500)
+
+	api, err := ParseRequest("v1|http://api.example.com|1000|http://host.example.com")
+	assert.NoError(t, err)
+	assert.Equal(t, expected.LogInfo(), api.LogInfo())
+}
+
+//  AntelopeV2
+// --------------------------------
+
+func TestParseRequest_AntelopeV2(t *testing.T) {
+	expected := api.NewAntelopeV2("http://api.v2.example.com", "", 10)
+
+	api, err := ParseRequest("v2|http://api.v2.example.com")
+	assert.NoError(t, err)
+	assert.Equal(t, expected.LogInfo(), api.LogInfo())
+}
+
+func TestParseRequest_AntelopeV2WithOffset(t *testing.T) {
+	expected := api.NewAntelopeV2("http://api.v2.example.com", "", 1000)
+
+	api, err := ParseRequest("v2|http://api.v2.example.com|1000")
+	assert.NoError(t, err)
+	assert.Equal(t, expected.LogInfo(), api.LogInfo())
+}
+
+func TestParseRequest_AntelopeV2Full(t *testing.T) {
+	expected := api.NewAntelopeV2("http://api.v2.example.com", "http://host.example.com", 1000)
+
+	api, err := ParseRequest("v2|http://api.v2.example.com|1000|http://host.example.com")
+	assert.NoError(t, err)
+
+	assert.Equal(t, expected.LogInfo(), api.LogInfo())
+}
+
+// AtomicAsset
+// --------------------------------
+
+func TestParseRequest_AtomicAsset(t *testing.T) {
+	expected := api.NewAtomicAsset("http://api.atomicassets.io", "", 5)
+
+	api, err := ParseRequest("atomic|http://api.atomicassets.io")
+	assert.NoError(t, err)
+	assert.Equal(t, expected.LogInfo(), api.LogInfo())
+}
+
+func TestParseRequest_AtomicAssetWithBlockTime(t *testing.T) {
+	expected := api.NewAtomicAsset("http://api.atomicassets.io", "", 256)
+
+	api, err := ParseRequest("atomic|http://api.atomicassets.io|512")
+	assert.NoError(t, err)
+	assert.Equal(t, expected.LogInfo(), api.LogInfo())
+}
+
+func TestParseRequest_AtomicAssetWithHost(t *testing.T) {
+	expected := api.NewAtomicAsset("http://api.atomicassets.io", "some.other.host", 256)
+
+	api, err := ParseRequest("atomic|http://api.atomicassets.io|512|some.other.host")
+	assert.NoError(t, err)
+	assert.Equal(t, expected.LogInfo(), api.LogInfo())
+}
+
+func TestParseRequest_DebugApi(t *testing.T) {
+	expected := api.NewDebugApi("some_api_call")
+
+	api, err := ParseRequest("debug|some_api_call")
+	assert.NoError(t, err)
+	assert.Equal(t, expected.LogInfo(), api.LogInfo())
+}

internal/server/server.go

@@ -0,0 +1,176 @@
+package server
+
+import (
+	"context"
+	"fmt"
+	"strings"
+	"sync/atomic"
+	"time"
+
+	"github.com/eosswedenorg-go/haproxy/agentcheck"
+	"github.com/eosswedenorg/antelope-api-healthcheck/internal/api"
+	log "github.com/inconshreveable/log15"
+	"github.com/panjf2000/gnet/v2"
+)
+
+type Server struct {
+	gnet.BuiltinEventEngine
+
+	eng gnet.Engine
+
+	// Address to bind to.
+	addr string
+
+	// Number of connections between each OnTick()
+	num_conn uint64
+
+	// Time between each call to OnTick()
+	tick_interval time.Duration
+
+	// API Check timeout
+	timeout time.Duration
+}
+
+type Option func(*Server)
+
+func New(addr string, options ...Option) *Server {
+	s := &Server{
+		addr: fmt.Sprintf("tcp://%s", addr),
+	}
+
+	for _, opt := range options {
+		opt(s)
+	}
+
+	return s
+}
+
+func WithTick(interval time.Duration) Option {
+	return func(s *Server) {
+		s.tick_interval = interval
+	}
+}
+
+func WithTimeout(duration time.Duration) Option {
+	return func(s *Server) {
+		s.timeout = duration
+	}
+}
+
+//	OnBoot callback function
+//
+// ---------------------------------------------------------
+func (s *Server) OnBoot(eng gnet.Engine) gnet.Action {
+	s.eng = eng
+	log.Info("Server started", "addr", s.addr)
+	return gnet.None
+}
+
+func (s *Server) OnOpen(c gnet.Conn) ([]byte, gnet.Action) {
+	atomic.AddUint64(&s.num_conn, 1)
+	return nil, gnet.None
+}
+
+//	OnClose callback function
+//
+// ---------------------------------------------------------
+func (s *Server) OnClose(c gnet.Conn, err error) gnet.Action {
+	if err != nil {
+		log.Error("TCP Close", "error", err)
+	}
+	return gnet.None
+}
+
+//	OnShutdown callback function
+//
+// ---------------------------------------------------------
+func (s *Server) OnShutdown(eng gnet.Engine) {
+	log.Info("Server shutdown")
+}
+
+//	OnTick callback function
+//
+// ---------------------------------------------------------
+func (s *Server) OnTick() (time.Duration, gnet.Action) {
+	log.Info("Server info", log.Ctx{
+		"connections":         atomic.LoadUint64(&s.num_conn),
+		"current_connections": s.eng.CountConnections(),
+	})
+	atomic.StoreUint64(&s.num_conn, 0)
+	return s.tick_interval, gnet.None
+}
+
+//	OnTraffic callback function
+//
+// ---------------------------------------------------------
+func (s *Server) OnTraffic(c gnet.Conn) gnet.Action {
+	logger := log.Root()
+
+	req, err := c.Next(-1)
+	if err != nil {
+		logger.Error("Read", "message", err)
+		return gnet.Close
+	}
+
+	// Check api.
+	// -------------------
+	healthCheckApi, err := ParseRequest(string(req))
+	if err != nil {
+		logger.Warn("Agent request error", "message", err)
+		resp := agentcheck.NewStatusMessageResponse(agentcheck.Fail, "")
+
+		_, err = c.Write([]byte(resp.String()))
+		if err != nil {
+			logger.Error("Write", "message", err)
+		}
+
+		return gnet.Close
+	}
+
+	// gnet library does not like blocking calls.
+	// as we do a blocking http call here, we need to wrap it in a goroutine.
+	go func() {
+		ctx := context.Background()
+		if s.timeout > 0 {
+			var cancel context.CancelFunc
+			ctx, cancel = context.WithTimeout(ctx, s.timeout)
+			defer cancel()
+		}
+
+		t := time.Now()
+		status, msg := healthCheckApi.Call(ctx)
+		req_time := time.Since(t)
+
+		params := api.LogParams{}
+		params.Add("status", strings.TrimSpace(status.String()))
+		params.Add("duration", req_time)
+		params.Add("duration_us", req_time.Microseconds())
+
+		if msg != "OK" && len(msg) > 0 {
+			params.Add("error", msg)
+		}
+
+		logger.Info("API Check", params.Combine(healthCheckApi.LogInfo())...)
+		// Report status to HAproxy
+		err = c.AsyncWrite([]byte(status.String()), func(c gnet.Conn, err error) error {
+			return c.Close()
+		})
+
+		if err != nil {
+			logger.Error("Write", "message", err)
+		}
+	}()
+
+	return gnet.None
+}
+
+func (s *Server) Close() error {
+	return s.eng.Stop(context.Background())
+}
+
+//	Run the server event loop.
+//
+// ---------------------------------------------------------
+func (s *Server) Run() error {
+	return gnet.Run(s, s.addr, gnet.WithMulticore(true), gnet.WithTicker(true))
+}

internal/utils/json.go

@@ -0,0 +1,16 @@
+package utils
+
+//  JsonGetInt64
+//    performs float64 (json numbers are always float64)
+//    type assertion and casts to int64.
+//
+//    if the type assertion fails, the function defaults 0 (zero).
+// ---------------------------------------------------------
+
+func JsonGetInt64(input interface{}) int64 {
+	v, res := input.(float64)
+	if res {
+		return (int64)(v)
+	}
+	return 0
+}

internal/utils/json_test.go

@@ -0,0 +1,22 @@
+package utils
+
+import "testing"
+
+func TestJson_GetInt64(t *testing.T) {
+	tests := []struct {
+		name  string
+		input interface{}
+		want  int64
+	}{
+		{"String", "test", 0},
+		{"Int", 1234, 0},
+		{"Float", float64(1234), 1234},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := JsonGetInt64(tt.input); got != tt.want {
+				t.Errorf("JsonGetInt64() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}

internal/utils/parse_log_formatter.go

@@ -0,0 +1,18 @@
+package utils
+
+import (
+	log "github.com/inconshreveable/log15"
+)
+
+func ParseLogFormatter(name string) log.Format {
+	switch name {
+	case "logfmt":
+		return log.LogfmtFormat()
+	case "json":
+		return log.JsonFormat()
+	case "json-pretty":
+		return log.JsonFormatEx(true, true)
+	default:
+		return log.TerminalFormat()
+	}
+}

internal/utils/parse_log_formatter_test.go

@@ -0,0 +1,29 @@
+package utils
+
+import (
+	"reflect"
+	"testing"
+
+	log "github.com/inconshreveable/log15"
+)
+
+func TestParseLogFormatter(t *testing.T) {
+	tests := []struct {
+		name string
+		arg  string
+		want log.Format
+	}{
+		{"Default", "", log.TerminalFormat()},
+		{"LogFmt", "logfmt", log.LogfmtFormat()},
+		{"Json", "json", log.JsonFormat()},
+		{"JsonPretty", "json-pretty", log.JsonFormat()},
+		{"Unknown", "unknown", log.TerminalFormat()},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := ParseLogFormatter(tt.arg); reflect.ValueOf(got).Pointer() != reflect.ValueOf(tt.want).Pointer() {
+				t.Errorf("parseLogFormatter() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}

internal/utils/time.go

@@ -0,0 +1,20 @@
+package utils
+
+import (
+	"time"
+)
+
+type Time struct {
+	ts time.Time
+}
+
+func (t *Time) SetTime(value time.Time) {
+	t.ts = value
+}
+
+func (t Time) GetTime() time.Time {
+	if !t.ts.IsZero() {
+		return t.ts
+	}
+	return time.Now().In(time.UTC)
+}

internal/utils/time_test.go

@@ -0,0 +1,24 @@
+package utils
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestTime_GetTimeWithDefaultValue(t *testing.T) {
+	var ts Time
+
+	// Assert that time is NOW (+-10 seconds)
+	assert.InDelta(t, ts.GetTime().Unix(), time.Now().In(time.UTC).Unix(), float64(10))
+}
+
+func TestTime_GetTimeWithSetTime(t *testing.T) {
+	var ts Time
+
+	expected := time.Unix(1048722042, 500)
+	ts.SetTime(expected)
+
+	assert.Equal(t, expected, ts.GetTime())
+}

log/log.go

@@ -1,49 +0,0 @@
-
-package log
-
-import "fmt"
-
-// Colors
-// ---------------------------------------------------------
-const (
-	InfoColor    = "\033[1;34m%s\033[0m"
-	NoticeColor  = "\033[1;36m%s\033[0m"
-	WarningColor = "\033[1;33m%s\033[0m"
-	ErrorColor   = "\033[1;31m%s\033[0m"
-)
-
-// Define LogFunc prototype
-//  Function that takes a format string and variadic number
-//  of arguments (like printf)
-// ---------------------------------------------------------
-type LogFunc func(format string, args ...interface{})
-
-// Create a log function.
-//  This is the base logging function. by providing a prefix
-//  a new log function of LogFunc type will be created
-//  appending "[ <prefix> ]" before the message.
-// ---------------------------------------------------------
-func logfn(prefix string) LogFunc {
-	return func(format string, args ...interface{}) {
-		format = "[" + prefix + "] " + format + "\n"
-		fmt.Printf(format, args...)
-	}
-}
-
-// Declare our different log functions.
-// ---------------------------------------------------------
-var Info LogFunc
-var Notice LogFunc
-var Warning LogFunc
-var Error LogFunc
-
-// Initilize log module
-// ---------------------------------------------------------
-func init() {
-
-	// Initilize functions.
-	Info 	= logfn(fmt.Sprintf(InfoColor, "INFO"))
-	Notice 	= logfn(fmt.Sprintf(NoticeColor, "NOTICE"))
-	Warning = logfn(fmt.Sprintf(WarningColor, "WARN"))
-	Error 	= logfn(fmt.Sprintf(ErrorColor, "ERROR"))
-}

scripts/.gitignore

@@ -1,2 +1,6 @@
 pack/
+info
+pkg_info
 *.deb
+*.tar
+*.tar.*

scripts/build_deb.sh

@@ -1,56 +0,0 @@
-#!/usr/bin/env bash
-
-BASE_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
-
-PACKAGE_BINDIR=${PACKAGE_PREFIX}/bin
-PACKAGE_ETCDIR=etc/${PACKAGE_NAME}
-PACKAGE_SYSUNITDIR=etc/systemd/system
-PACKAGE_SHAREDIR=${PACKAGE_PREFIX}/share/${PACKAGE_NAME}
-PACKAGE_DESCRIPTION="HAproxy healthcheck program for EOSIO API."
-PACKAGE_TMPDIR="pack"
-
-# Default to 1 if no release is set.
-if [[ -z $RELEASE ]]; then
-  RELEASE="1"
-fi
-
-PACKAGE_FULLNAME="${PACKAGE_NAME}_${PACKAGE_VERSION}-${RELEASE}_amd64"
-
-rm -fr ${BASE_DIR}/${PACKAGE_TMPDIR}
-
-# Create debian files.
-mkdir -p ${BASE_DIR}/${PACKAGE_TMPDIR}/DEBIAN
-echo "Package: ${PACKAGE_NAME}
-Version: ${PACKAGE_VERSION}-${RELEASE}
-Section: introspection
-Priority: optional
-Architecture: amd64
-Homepage: https://github.com/eosswedenorg/eos-api-healthcheck
-Maintainer: Henrik Hautakoski <henrik@eossweden.org>
-Description: ${PACKAGE_DESCRIPTION}" &> ${BASE_DIR}/${PACKAGE_TMPDIR}/DEBIAN/control
-
-cat ${BASE_DIR}/${PACKAGE_TMPDIR}/DEBIAN/control
-
-# Create service file
-mkdir -p ${BASE_DIR}/${PACKAGE_TMPDIR}/${PACKAGE_SYSUNITDIR}
-cat ${BASE_DIR}/template.service \
-	| sed "s~{{ PACKAGE_NAME }}~${PACKAGE_NAME}~" \
-	| sed "s~{{ DESCRIPTION }}~${PACKAGE_DESCRIPTION}~" \
-	| sed "s~{{ PROGRAM }}~/${PACKAGE_PREFIX}/bin/${PACKAGE_NAME}~" \
-	> ${BASE_DIR}/${PACKAGE_TMPDIR}/${PACKAGE_SYSUNITDIR}/${PACKAGE_NAME}.service
-
-# Cerate config file
-mkdir -p ${BASE_DIR}/${PACKAGE_TMPDIR}/${PACKAGE_ETCDIR}
-cat ${BASE_DIR}/config \
-	| sed "s~{{ PACKAGE_NAME }}~${PACKAGE_NAME}~" \
-	> ${BASE_DIR}/${PACKAGE_TMPDIR}/${PACKAGE_ETCDIR}/env
-
-# Copy program
-mkdir -p ${BASE_DIR}/${PACKAGE_TMPDIR}/${PACKAGE_BINDIR}
-cp ${BASE_DIR}/../${PACKAGE_PROGRAM} ${BASE_DIR}/${PACKAGE_TMPDIR}/${PACKAGE_BINDIR}/${PACKAGE_NAME}
-
-# Copy files.
-mkdir -p ${BASE_DIR}/${PACKAGE_TMPDIR}/${PACKAGE_SHAREDIR}
-cp ${BASE_DIR}/../README.md ${BASE_DIR}/${PACKAGE_TMPDIR}/${PACKAGE_SHAREDIR}
-
-fakeroot dpkg-deb --build ${BASE_DIR}/${PACKAGE_TMPDIR} ${BASE_DIR}/${PACKAGE_FULLNAME}.deb

scripts/config

@@ -1,7 +0,0 @@
-# Default settings for {{ PACKAGE_NAME }}
-#
-# This is sourced by the systemd unit file.
-
-# Command line flags to pass to {{ PACKAGE_NAME }}
-# First is IP to listen to, second is port.
-#OPTS="127.0.0.1 1337"

scripts/functions/log_install.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+log_install() {
+    echo -e "[\e[34m::\e[0m] Installing: \e[32m${1}\e[0m"
+}

scripts/info.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+# Info
+PROGRAM_NAME=antelope-api-healthcheck
+PROGRAM_DESCRIPTION="HAproxy healthcheck program for Antelope Leap API."

scripts/install.sh

@@ -0,0 +1,61 @@
+#!/bin/bash
+
+############################
+#  Read cli args           #
+############################
+
+if [ $# -lt 1 ]; then
+    echo "$0 <type>"
+    exit 1
+fi
+
+SYSTEM_TYPE=$1
+
+if [ $# -gt 1 ]; then
+    PREFIX=$2
+fi
+
+if [ $# -gt 2 ]; then
+    DESTDIR=$3
+fi
+
+############################
+#  Exported variables.     #
+############################
+
+export BASE_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+export TEMPLATE_DIR=${BASE_DIR}/templates
+export BUILD_DIR=${BASE_DIR}/../build
+
+# Export info variables
+set -o allexport
+source ${BASE_DIR}/info.sh
+set +o allexport
+
+# Directories.
+export DESTDIR
+export PREFIX
+export BINDIR=${PREFIX}/bin
+export ETCDIR=/etc/${PROGRAM_NAME}
+export LOGDIR=/var/log
+export LOGFILE=${LOGDIR}/${PROGRAM_NAME}.log
+export SHAREDIR=${PREFIX}/share/${PROGRAM_NAME}
+
+############################
+#  Run script              #
+############################
+
+SCRIPT="${BASE_DIR}/install_${SYSTEM_TYPE}.sh"
+
+# Check and call script
+if [ ! -x $SCRIPT ]; then
+	echo "$SCRIPT not found"
+	exit 1
+fi
+
+echo -e "[\e[34m::\e[0m] Installing for system: \e[32m${SYSTEM_TYPE}\e[0m"
+if [ -n "$DESTDIR" ]; then
+    echo -e "[\e[34m::\e[0m] Installing with root:  \e[32m${DESTDIR}\e[0m"
+fi
+
+bash $SCRIPT

scripts/install_freebsd.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+# Simple script to install program files on FreeBSD systems
+
+source ${BASE_DIR}/functions/log_install.sh
+
+RCDIR=${DESTDIR}/etc/rc.d
+NEWSYSLOGDIR=${DESTDIR}/etc/newsyslog.conf.d
+
+# Common variables
+PID_FILE=/var/run/${PROGRAM_NAME}.pid
+# rc does not like "-" in the filename.
+RC_NAME=$(echo ${PROGRAM_NAME} | sed "s~-~_~g")
+
+############################
+#  Create rc file          #
+############################
+
+log_install ${RCDIR}/${RC_NAME}
+mkdir -p ${RCDIR}
+cat ${TEMPLATE_DIR}/rc.conf \
+	| sed "s~{{ RC_NAME }}~${RC_NAME}~g" \
+	| sed "s~{{ PID_FILE }}~${PID_FILE}~g" \
+	| sed "s~{{ LOG_FILE }}~${LOGFILE}~" \
+	| sed "s~{{ PROGRAM_DESCRIPTION }}~${PROGRAM_DESCRIPTION}~" \
+	| sed "s~{{ PROGRAM }}~${BINDIR}/${PROGRAM_NAME}~" \
+	> ${RCDIR}/${RC_NAME}
+
+# Must be executable.
+chmod 755 ${RCDIR}/${RC_NAME}
+
+############################
+#  Create newsyslog config #
+############################
+
+log_install ${NEWSYSLOGDIR}/${PROGRAM_NAME}.conf
+mkdir -p ${NEWSYSLOGDIR}
+cat ${TEMPLATE_DIR}/newsyslog.conf \
+	| sed "s~{{ LOG_FILE }}~${LOGFILE}~" \
+	| sed "s~{{ PID_FILE }}~${PID_FILE}~g" \
+	> ${NEWSYSLOGDIR}/${PROGRAM_NAME}.conf
+
+
+############################
+#  Copy binary             #
+############################
+
+log_install ${DESTDIR}${BINDIR}/${PROGRAM_NAME}
+mkdir -p ${DESTDIR}/${BINDIR}
+cp ${BUILD_DIR}/${PROGRAM_NAME} ${DESTDIR}${BINDIR}/${PROGRAM_NAME}

scripts/install_linux.sh

@@ -0,0 +1,64 @@
+#!/bin/bash
+# Script to install program files on linux systems
+
+source ${BASE_DIR}/functions/log_install.sh
+
+SYSTEMDDIR=${DESTDIR}/lib/systemd/system
+SYSTEMDLINKDIR=${DESTDIR}/etc/systemd/system
+RSYSLOGDIR=${DESTDIR}/etc/rsyslog.d
+SYSLOG_NG_DIR=${DESTDIR}/etc/syslog-ng/conf.d
+LOGROTATEDIR=${DESTDIR}/etc/logrotate.d
+
+# Create service file
+log_install ${SYSTEMDDIR}/${PROGRAM_NAME}.service
+mkdir -p ${SYSTEMDDIR}
+cat ${TEMPLATE_DIR}/sysunit.service \
+    | sed "s~{{ PROGRAM_NAME }}~${PROGRAM_NAME}~" \
+    | sed "s~{{ PROGRAM_DESCRIPTION }}~${PROGRAM_DESCRIPTION}~" \
+    | sed "s~{{ PROGRAM }}~${BINDIR}/${PROGRAM_NAME}~" \
+    > ${SYSTEMDDIR}/${PROGRAM_NAME}.service
+
+# Create systemd symlink
+log_install ${SYSTEMDLINKDIR}/${PROGRAM_NAME}.service
+mkdir -p ${SYSTEMDLINKDIR}
+ln -s -T /lib/systemd/system/${PROGRAM_NAME}.service ${SYSTEMDLINKDIR}/${PROGRAM_NAME}.service
+
+# Create systemd/init.d config file
+log_install ${DESTDIR}/etc/sysconfig/${PROGRAM_NAME}
+mkdir -p ${DESTDIR}/etc/sysconfig
+cat ${TEMPLATE_DIR}/config \
+    | sed "s~{{ PROGRAM_NAME }}~${PROGRAM_NAME}~" \
+    > ${DESTDIR}/etc/sysconfig/${PROGRAM_NAME}
+
+# Create rsyslog file
+log_install ${RSYSLOGDIR}/49-${PROGRAM_NAME}.conf
+mkdir -p ${RSYSLOGDIR}
+cat ${TEMPLATE_DIR}/rsyslog.conf \
+    | sed "s~{{ PROGRAM }}~${PROGRAM_NAME}~" \
+    | sed "s~{{ LOG_FILE }}~${LOGFILE}~" \
+    > ${RSYSLOGDIR}/49-${PROGRAM_NAME}.conf
+
+# Create syslog-ng file
+log_install ${SYSLOG_NG_DIR}/${PROGRAM_NAME}.conf
+mkdir -p ${SYSLOG_NG_DIR}
+cat ${TEMPLATE_DIR}/syslog-ng.conf \
+    | sed "s~{{ PROGRAM }}~${PROGRAM_NAME}~" \
+    | sed "s~{{ LOG_FILE }}~${LOGFILE}~" \
+    > ${SYSLOG_NG_DIR}/${PROGRAM_NAME}.conf
+
+# Create logrotate file
+log_install ${LOGROTATEDIR}/${PROGRAM_NAME}.conf
+mkdir -p ${LOGROTATEDIR}
+cat ${TEMPLATE_DIR}/logrotate.conf \
+    | sed "s~{{ LOG_FILE }}~${LOGFILE}~" \
+    > ${LOGROTATEDIR}/${PROGRAM_NAME}.conf
+chmod 644 ${LOGROTATEDIR}/${PROGRAM_NAME}.conf
+
+# Copy program
+log_install ${DESTDIR}${SHAREDIR}
+mkdir -p ${DESTDIR}/${BINDIR}
+cp ${BUILD_DIR}/${PROGRAM_NAME} ${DESTDIR}${BINDIR}/${PROGRAM_NAME}
+
+# Copy files.
+mkdir -p ${DESTDIR}${SHAREDIR}
+cp ${BASE_DIR}/../README.md ${DESTDIR}${SHAREDIR}

scripts/package.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+############################
+#  Read cli args           #
+############################
+
+if [ $# -lt 1 ]; then
+    echo "$0 <type>"
+    exit 1
+fi
+
+PKG_TYPE=$1
+
+# Setup vars
+export BASE_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+
+# export
+export PKGROOT
+export BUILDDIR
+
+############################
+#  Run script              #
+############################
+
+SCRIPT="${BASE_DIR}/package_${PKG_TYPE}.sh"
+
+# Check and call script
+if [ ! -x $SCRIPT ]; then
+	echo "$SCRIPT not found"
+	exit 1
+fi
+
+# Export info variables
+set -o allexport
+source ${BASE_DIR}/info.sh
+set +o allexport
+
+bash $SCRIPT

scripts/package_freebsd.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+PROGRAM_ARCH=$(go env GOARCH)
+TAR_FILENAME="${PROGRAM_NAME}-${PROGRAM_VERSION}-freebsd-${PROGRAM_ARCH}.tar.gz"
+
+echo "Create archive: ${BUILDDIR}/${TAR_FILENAME}"
+tar -C ${PKGROOT} --owner root --group root -zcvf ${BUILDDIR}/${TAR_FILENAME} .

scripts/template.service

@@ -1,21 +0,0 @@
-[Unit]
-Description={{ DESCRIPTION }}
-After=network.target
-
-[Service]
-EnvironmentFile=-/etc/{{ PACKAGE_NAME }}/env
-Type=simple
-# Another Type: forking
-#User=nanodano
-#WorkingDirectory=/home/nanodano
-ExecStart={{ PROGRAM }} $OPTS
-Restart=on-failure
-# Other restart options: always, on-abort, etc
-
-# The install section is needed to use
-# `systemctl enable` to start on boot
-# For a user service that you want to enable
-# and start automatically, use `default.target`
-# For system level services, use `multi-user.target`
-[Install]
-WantedBy=multi-user.target

scripts/templates/config

@@ -0,0 +1,7 @@
+# Default settings for {{ PROGRAM_NAME }}
+#
+# This is sourced by the systemd unit file or init.d
+
+# Command line flags to pass to {{ PROGRAM_NAME }}
+# Positional agruments are IP to listen to, then port number.
+ANTELOPE_API_HEALTCHECK_OPTS="--log-format=logfmt 127.0.0.1 1337"

scripts/templates/logrotate.conf

@@ -0,0 +1,9 @@
+{{ LOG_FILE }} {
+	daily
+	dateext
+	dateformat _%Y-%m-%d
+	rotate 10
+	compress
+	notifempty
+	copytruncate
+}

scripts/templates/newsyslog.conf

@@ -0,0 +1,2 @@
+# logfilename     [owner:group]    mode count size when  flags [/pid_file] [sig_num]
+{{ LOG_FILE }}     	   			   640  3     *    @T10  JC    {{ PID_FILE }} 

scripts/templates/rc.conf

@@ -0,0 +1,32 @@
+#!/bin/sh
+
+#
+# Add the following lines to /etc/rc.conf to configure antelope_api_healthcheck:
+#
+#  antelope_api_healthcheck_args : arguments to the command.
+#
+#  antelope_api_healthcheck_logfile : file to log to (default /var/log/${name}.log)
+#
+
+# PROVIDE: {{ RC_NAME }}
+# REQUIRE: netif FILESYSTEMS
+
+. /etc/rc.subr
+
+name="{{ RC_NAME }}"
+desc="{{ PROGRAM_DESCRIPTION }}"
+logfile="${antelope_api_healthcheck_logfile:-{{ LOG_FILE }}}"
+pidfile="{{ PID_FILE }}"
+command="{{ PROGRAM }}"
+command_args="-p ${pidfile} -l ${logfile} ${antelope_api_healthcheck_args}"
+
+start_cmd="${name}_start"
+
+antelope_api_healthcheck_start()
+{
+	echo "Starting ${name}"
+	${command} ${command_args} 2>&1 &
+}
+
+load_rc_config $name
+run_rc_command "$1"

scripts/templates/rsyslog.conf

@@ -0,0 +1,5 @@
+
+if $programname == '{{ PROGRAM }}' then {
+        {{ LOG_FILE }}
+        stop
+}

scripts/templates/syslog-ng.conf

@@ -0,0 +1,3 @@
+filter f_api-healthcheck { program("{{ PROGRAM }}"); };
+destination d_api-healthcheck { file("{{ LOG_FILE }}"); };
+log { source(s_src); filter(f_api-healthcheck); destination(d_api-healthcheck); };

scripts/templates/sysunit.service

@@ -0,0 +1,12 @@
+[Unit]
+Description={{ PROGRAM_DESCRIPTION }}
+After=network.target
+
+[Service]
+EnvironmentFile=-/etc/sysconfig/{{ PROGRAM_NAME }}
+Type=simple
+ExecStart={{ PROGRAM }} $ANTELOPE_API_HEALTCHECK_OPTS
+Restart=on-failure
+
+[Install]
+WantedBy=multi-user.target

server.go

@@ -1,173 +0,0 @@
-package main
-
-import (
-	"os"
-    "fmt"
-	"time"
-	"strings"
-	"strconv"
-	"./log"
-	"./haproxy"
-	"./eosapi"
-    "github.com/firstrow/tcp_server"
-)
-
-//  check_api - Validates head block time.
-// ---------------------------------------------------------
-func check_api(host string, port int, block_time float64) (haproxy.HealthCheckStatus, string) {
-
-	info, err := eosapi.GetInfo(host, port)
-	if err != nil {
-		msg := fmt.Sprintf("%s", err);
-		return haproxy.HealthCheckFailed, msg
-	}
-
-	// Validate head block.
-	now  := time.Now().In(time.UTC)
-	diff := now.Sub(info.HeadBlockTime).Seconds()
-
-	if diff > block_time {
-		return haproxy.HealthCheckDown,
-			fmt.Sprintf("Taking offline because head block is lagging %.0f seconds", diff)
-	} else if diff < -block_time {
-		return haproxy.HealthCheckDown,
-			fmt.Sprintf("Taking offline because head block is %.0f seconds into the future", diff)
-	}
-	return haproxy.HealthCheckUp, "OK"
-}
-
-//  check_api_v2 (hyperion)
-//    Validates block num diff between
-//    nodeos and elasticsearch
-// ---------------------------------------------------------
-func check_api_v2(host string, port int, offset int64) (haproxy.HealthCheckStatus, string) {
-
-	health, err := eosapi.GetHealth(host, port)
-	if err != nil {
-		msg := fmt.Sprintf("%s", err);
-		return haproxy.HealthCheckFailed, msg
-	}
-
-	// Fetch elasticsearch and nodeos block numbers from json.
-	var es_block int64 = 0
-	var node_block int64 = 0
-
-	for _, v := range health.Health {
-		if v.Name == "Elasticsearch" {
-			es_block = (int64) (v.Data["last_indexed_block"].(float64))
-		} else if v.Name == "NodeosRPC" {
-			node_block = (int64) (v.Data["head_block_num"].(float64))
-		}
-	}
-
-	// Error out if ether or both are zero.
-	if es_block == 0 || node_block == 0 {
-		msg := fmt.Sprintf("Failed to get Elasticsearch and/or nodeos " +
-			"block numbers (es: %d, eos: %d)", es_block, node_block)
-		return haproxy.HealthCheckFailed, msg
-	}
-
-	// Check if ES is behind or in the future.
-	diff := node_block - es_block;
-	if diff > offset {
-		return haproxy.HealthCheckDown,
-			fmt.Sprintf("Taking offline because Elastic is %d blocks behind", diff)
-	} else if diff < -offset {
-		return haproxy.HealthCheckDown,
-			fmt.Sprintf("Taking offline because Elastic is %d blocks into the future", -1 * diff)
-	}
-	return haproxy.HealthCheckUp, "OK"
-}
-
-//  argv_listen_addr
-//    Parse listen address from command line.
-// ---------------------------------------------------------
-func argv_listen_addr() string {
-
-	var addr string
-
-	argv := os.Args[1:]
-	if len(argv) > 0 {
-		addr = argv[0]
-	} else {
-		addr = "127.0.0.1"
-	}
-
-	addr += ":"
-	if len(argv) > 1 {
-		addr += argv[1]
-	} else {
-		addr += "1337"
-	}
-
-	return addr
-}
-
-//  main
-// ---------------------------------------------------------
-func main() {
-
-    server := tcp_server.New(argv_listen_addr())
-
-	// TCP Client connect.
-    server.OnNewClient(func(c *tcp_server.Client) {
-        //fmt.Println("# Client connected")
-    });
-
-	// TCP Client sends message.
-	server.OnNewMessage(func(c *tcp_server.Client, message string) {
-		var host string
-		var port int = 80
-		var block_time int = 10
-		var version string = "v1"
-
-		// Parse host + port.
-		split := strings.Split(strings.TrimSpace(message), ":")
-
-		host = split[0]
-		if len(split) > 1 {
-			p, err := strconv.ParseInt(split[1], 10, 32)
-			if err == nil {
-				port = int(p)
-			}
-		}
-		if len(split) > 2 {
-			p, err := strconv.ParseInt(split[2], 10, 32)
-			if err == nil {
-				block_time = int(p)
-			}
-		}
-		if len(split) > 3 {
-			version = split[3]
-		}
-
-		// Check api.
-		var status haproxy.HealthCheckStatus
-		var msg string
-
-		if version == "v2" {
-			status, msg = check_api_v2(host, port, int64(block_time / 2))
-		} else {
-			version = "v1"
-			status, msg = check_api(host, port, float64(block_time))
-		}
-
-		log.Info("Status %s - %s:%d (%d blocks): %s",
-			 version, host, port, block_time / 2, status)
-
-		if status != haproxy.HealthCheckUp && len(msg) > 0 {
-			log.Warning(msg)
-		}
-
-		// Report status to HAproxy
-		c.Send(fmt.Sprintln(status))
-        c.Close()
-	});
-
-	// TCP Client disconnect.
-	server.OnClientConnectionClosed(func(c *tcp_server.Client, err error) {
-		//fmt.Println("# Client disconnected")
-	});
-
-    server.Listen()
-}

set-version.sh

@@ -0,0 +1,68 @@
+#!/bin/bash
+# Simple script to make it easy to update the version number for the program.
+#
+# Debian
+# ----------------------------
+# For releasing debian packages, there must be a name and email associated with the version.
+# You can pass "-n|--name" and "-e|--email" as parameters to this script.
+#
+# You can if you want set the following enviroment variables in your shell to have your name and email be inserted without cli flags.
+#  DEB_MAINT_NAME
+#  DEB_MAINT_EMAIL
+
+function usage() {
+    echo "Usage: ${0##*/} [ -h|--help ] [ -n|--name <value> ] [ -e|--email <value> ] [ --nodebchanges ] <version>"
+    exit 1
+}
+
+eval set -- "$(getopt -n "${0##*/}" -o "hn:e:" -l "help,name:,email:,nodebchanges" -- "$@")"
+
+WRITE_DEBCHANGES=1
+while true; do
+
+    case $1 in
+    -n|--name)
+        shift
+        DEB_MAINT_NAME=$1
+        ;;
+    -e|--email)
+        shift
+        DEB_MAINT_EMAIL=$1
+        ;;
+    --nodebchanges)
+        WRITE_DEBCHANGES=0
+        ;;
+    -h|--help) usage ;;
+    --) shift
+        break
+        ;;
+    esac
+    shift
+done
+
+[ $# -gt 0 ] || [ $? -eq 0 ] || usage
+
+VERSION=$@
+
+if [ ${WRITE_DEBCHANGES} -ne 0 ]; then
+    # Update debian changelog
+    ex debian/changelog <<EOF
+1 insert
+antelope-api-healthcheck (${VERSION}) unstable; urgency=medium
+
+  *
+
+ -- ${DEB_MAINT_NAME} <${DEB_MAINT_EMAIL}>  $(date -R)
+
+.
+xit
+EOF
+    echo -e "[\e[34m::\e[0m] Inserted template in \e[1mdebian/changelog\e[0m. \e[33mMake sure you edit this file with the actual changes!\e[0m"
+else :
+    echo -e "[\e[33m::\e[0m] Skipping \e[1mdebian/changelog\e[0m."
+fi
+
+
+# Update Makefile
+sed -i "s:PROGRAM_VERSION\(\s*\)=\(\s*\)\(.*\):PROGRAM_VERSION\1=\2$VERSION:g" Makefile
+echo -e "[\e[34m::\e[0m] Set PROGRAM_VERSION=\e[34m$VERSION\e[0m in \e[1mMakefile\e[0m"