soju/server.go
delthas 0607b940e2 Add support for bouncer logs
Add bouncer logs, in a network/channel/date.log format, in a similar
manner to ZNC log module. PRIVMSG, JOIN, PART, QUIT, MODE are logged.

Add a config directive for the logs file, including a way to disable
them entirely.
2020-03-28 00:07:20 +01:00

128 lines
2.3 KiB
Go

package soju
import (
"fmt"
"log"
"net"
"sync"
"time"
"gopkg.in/irc.v3"
)
// TODO: make configurable
var keepAlivePeriod = time.Minute
var retryConnectMinDelay = time.Minute
func setKeepAlive(c net.Conn) error {
tcpConn, ok := c.(*net.TCPConn)
if !ok {
return fmt.Errorf("cannot enable keep-alive on a non-TCP connection")
}
if err := tcpConn.SetKeepAlive(true); err != nil {
return err
}
return tcpConn.SetKeepAlivePeriod(keepAlivePeriod)
}
type Logger interface {
Print(v ...interface{})
Printf(format string, v ...interface{})
}
type prefixLogger struct {
logger Logger
prefix string
}
var _ Logger = (*prefixLogger)(nil)
func (l *prefixLogger) Print(v ...interface{}) {
v = append([]interface{}{l.prefix}, v...)
l.logger.Print(v...)
}
func (l *prefixLogger) Printf(format string, v ...interface{}) {
v = append([]interface{}{l.prefix}, v...)
l.logger.Printf("%v"+format, v...)
}
type Server struct {
Hostname string
Logger Logger
RingCap int
LogPath string
Debug bool
db *DB
lock sync.Mutex
users map[string]*user
}
func NewServer(db *DB) *Server {
return &Server{
Logger: log.New(log.Writer(), "", log.LstdFlags),
RingCap: 4096,
users: make(map[string]*user),
db: db,
}
}
func (s *Server) prefix() *irc.Prefix {
return &irc.Prefix{Name: s.Hostname}
}
func (s *Server) Run() error {
users, err := s.db.ListUsers()
if err != nil {
return err
}
s.lock.Lock()
for _, record := range users {
s.Logger.Printf("starting bouncer for user %q", record.Username)
u := newUser(s, &record)
s.users[u.Username] = u
go u.run()
}
s.lock.Unlock()
select {}
}
func (s *Server) getUser(name string) *user {
s.lock.Lock()
u := s.users[name]
s.lock.Unlock()
return u
}
func (s *Server) Serve(ln net.Listener) error {
var nextDownstreamID uint64 = 1
for {
netConn, err := ln.Accept()
if err != nil {
return fmt.Errorf("failed to accept connection: %v", err)
}
setKeepAlive(netConn)
dc := newDownstreamConn(s, netConn, nextDownstreamID)
nextDownstreamID++
go func() {
if err := dc.runUntilRegistered(); err != nil {
dc.logger.Print(err)
} else {
dc.user.events <- eventDownstreamConnected{dc}
if err := dc.readMessages(dc.user.events); err != nil {
dc.logger.Print(err)
}
dc.user.events <- eventDownstreamDisconnected{dc}
}
dc.Close()
}()
}
}