move nmdc-log-service to separate repo

This commit is contained in:
mappu 2016-04-30 19:48:04 +12:00
parent 0fee719b90
commit dea4f996f9
4 changed files with 0 additions and 289 deletions

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A logging service for NMDC hubs.
It logs public chat messages to a file, categorised by months. Binaries are provided for Windows/Linux amd64/i386.
Written in golang
Tags: nmdc
=USAGE=
`$nmdc-log-service -Help
Usage of nmdc-log-service:
-Debug
Print additional information on stdout
-Dir string
Output directory (default ".")
-LogConnectionState
Include connection state changes in log (default true)
-Nick string
Nick (default "nmdc-log-service")
-PMResponse string
Message to respond with on PM (default "This is an automated service. For enquiries, please contact an administrator.")
-Password string
Registered nick password
-Server string
Addresses to connect to (comma-separated)
-VerifyTLS
Verify TLS certificates (default true)
`
=CHANGELOG=
2016-04-16 1.0.4
- Enhancement: Upgrade `libnmdc` from `r5` to `r6`
- Include a sample systemd unit script in source archive
- Fix an issue showing zero connected hubs in user tag
- Fix a cosmetic issue with logging repeated identical connection failure messages
2016-04-04 1.0.3
- Enhancement: Upgrade `libnmdc` from `r4` to `r5`
2016-04-03 1.0.2
- Enhancement: Upgrade `libnmdc` from `r3` to `r4`
2016-04-03 1.0.1
- Enhancement: Add `-VerifyTLS` option
- Enhancement: Upgrade `libnmdc` from `r2` to `r3`
- Fix an issue writing log files on Linux
- Fix a cosmetic issue with error message formatting
2016-04-02 1.0.0
- Initial public release

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#!/bin/bash
set -eu
export GOPATH=$(
cd ../../
cygpath -w "$(pwd)"
)
sanitise() {
local tmp=$(mktemp)
cat "$1" | perl -pe 's~C:.Users.......Documents.DEV.~C:/xxxxxxxxxxxxxxxxxxxxxxxxx/~g' > "$tmp"
mv "$tmp" "$1"
chmod 755 "$1"
}
main() {
local version=""
read -p "Enter version string (blank for timestamp)> " version
if [[ $version == "" ]] ; then
version=$(date +%s)
fi
echo "Using '${version}' as the version."
if [[ -f nmdc-log-service.exe ]] ; then
rm ./nmdc-log-service.exe
fi
if [[ -f nmdc-log-service ]] ; then
rm ./nmdc-log-service
fi
echo "Building win64..."
GOARCH=amd64 GOOS=windows go build -a -ldflags -s -o nmdc-log-service.exe
sanitise nmdc-log-service.exe
7z a -mx9 nmdc-log-service-${version}-win64.7z nmdc-log-service.exe >/dev/null
rm ./nmdc-log-service.exe
echo "Building win32..."
GOARCH=386 GOOS=windows go build -a -ldflags -s -o nmdc-log-service.exe
sanitise nmdc-log-service.exe
7z a -mx9 nmdc-log-service-${version}-win32.7z nmdc-log-service.exe >/dev/null
rm ./nmdc-log-service.exe
echo "Building linux64..."
GOARCH=amd64 GOOS=linux go build -a -ldflags -s -o nmdc-log-service
sanitise nmdc-log-service
XZ_OPT=-9 tar caf nmdc-log-service-${version}-linux64.tar.xz nmdc-log-service --owner=0 --group=0
rm ./nmdc-log-service
echo "Building linux32..."
GOARCH=386 GOOS=linux go build -a -ldflags -s -o nmdc-log-service
sanitise nmdc-log-service
XZ_OPT=-9 tar caf nmdc-log-service-${version}-linux32.tar.xz nmdc-log-service --owner=0 --group=0
rm ./nmdc-log-service
echo "Build complete."
}
main "$@"

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[Unit]
Description=NMDC Log Service
[Service]
Environment=TZ=Etc/UTC
Type=simple
ExecStart=/home/hublog/nmdc-log-service -Dir /home/hublog/logs/ -Server ... -Nick ... -Password '...' -VerifyTLS=false
Restart=always
RestartSec=30s
User=hublog
Group=nogroup
[Install]
WantedBy=multi-user.target

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package main
import (
"flag"
"fmt"
"libnmdc"
"os"
"path/filepath"
"regexp"
"strings"
"time"
)
var BaseDir string = "."
var PMResponse string = ""
var LogConnectionState bool
var DebugMode bool
var VerifyTLS bool
var CharacterMatcher *regexp.Regexp
func init() {
CharacterMatcher = regexp.MustCompile("[^a-zA-Z0-9]")
}
func GetDirectoryNameForHub(hub string) string {
return filepath.Join(BaseDir, CharacterMatcher.ReplaceAllString(hub, "_"))
}
func LogMessage(hub, message string) {
instant := time.Now() // using system timezone
// Log file path
monthStamp := instant.Format("2006-01")
logFilePath := filepath.Join(GetDirectoryNameForHub(hub), monthStamp+".log")
// Produce a timestamp
timeStamp := instant.Format("2006-01-02 15:04:05")
fh, err := os.OpenFile(logFilePath, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
if err != nil {
fmt.Fprintf(os.Stderr, "Couldn't open file '%s': %s\n", logFilePath, err.Error())
return
}
defer fh.Close()
_, err = fh.WriteString("[" + timeStamp + "] " + message + "\n")
if err != nil {
fmt.Fprintf(os.Stderr, "Error writing to file '%s': %s\n", logFilePath, err.Error())
return
}
}
type HubWorker struct {
LastConnectionStateMessage string
}
func (this *HubWorker) MainLoop(addr, nick, password string) {
opts := libnmdc.HubConnectionOptions{
Address: libnmdc.HubAddress(addr),
SkipVerifyTLS: !VerifyTLS,
Self: *libnmdc.NewUserInfo(nick),
NickPassword: password,
}
hub := opts.Connect()
for {
event := <-hub.OnEvent
if DebugMode {
fmt.Printf("DEBUG: %s %v\n", addr, event)
}
switch event.EventType {
case libnmdc.EVENT_CONNECTION_STATE_CHANGED:
if LogConnectionState {
str := "* " + event.StateChange.Format()
if len(event.Message) > 0 {
str += " (" + event.Message + ")"
}
// Prevent logging the same message repeatedly
if str != this.LastConnectionStateMessage {
LogMessage(addr, str)
}
this.LastConnectionStateMessage = str
}
case libnmdc.EVENT_PUBLIC:
LogMessage(addr, "<"+event.Nick+"> "+event.Message)
case libnmdc.EVENT_PRIVATE:
fmt.Printf("Got PM %v\n", event)
hub.SayPrivate(event.Nick, PMResponse)
case libnmdc.EVENT_SYSTEM_MESSAGE_FROM_CONN, libnmdc.EVENT_SYSTEM_MESSAGE_FROM_HUB:
if strings.HasPrefix(event.Message, "* ") {
LogMessage(addr, event.Message)
} else {
LogMessage(addr, "* "+event.Message)
}
}
}
}
func main() {
// Parse arguments
hubs := flag.String("Server", "", "Addresses to connect to (comma-separated)")
nick := flag.String("Nick", "nmdc-log-service", "Nick")
password := flag.String("Password", "", "Registered nick password")
flag.StringVar(&BaseDir, "Dir", ".", "Output directory")
flag.BoolVar(&LogConnectionState, "LogConnectionState", true, "Include connection state changes in log")
flag.StringVar(&PMResponse, "PMResponse", "This is an automated service. For enquiries, please contact an administrator.", "Message to respond with on PM")
flag.BoolVar(&DebugMode, "Debug", false, "Print additional information on stdout")
flag.BoolVar(&VerifyTLS, "VerifyTLS", true, "Verify TLS certificates")
flag.Parse()
// Assert dir exists
dinfo, err := os.Stat(BaseDir)
if err != nil {
fmt.Fprintf(os.Stderr, "FATAL: %s\n", err.Error())
os.Exit(1)
}
if !dinfo.IsDir() {
fmt.Fprintf(os.Stderr, "FATAL: Path '%s' is not a directory\n", BaseDir)
}
if !VerifyTLS {
fmt.Fprintf(os.Stderr, "WARNING: TLS certificates will not be verified!\n")
}
// Launch loggers
all_hubs := strings.Split(*hubs, ",")
launch_ct := 0
for _, hubaddr := range all_hubs {
if len(hubaddr) == 0 {
continue
}
// Assert target directory exists
os.MkdirAll(GetDirectoryNameForHub(hubaddr), 0755)
// Launch logger
hw := HubWorker{}
go hw.MainLoop(hubaddr, *nick, *password)
launch_ct++
}
if launch_ct == 0 {
fmt.Fprintln(os.Stderr, "FATAL: No hubs specified")
os.Exit(1)
}
// Wait forever
var forever chan bool = nil
select {
case <-forever:
}
}