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fix #283 (remove unnecessary log.Fatal)

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The server should never crash during rehash, even if the config is invalid.
This commit is contained in:
Shivaram Lingamneni 2018-08-06 05:02:47 -04:00
parent a72de2f4d2
commit 3c12fb6254
5 changed files with 45 additions and 34 deletions
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19
irc/client.go
View File

@ -7,7 +7,6 @@ package irc
import (
"fmt"
"log"
"net"
"runtime/debug"
"strconv"
@ -82,8 +81,8 @@ type Client struct {
vhost string
}
// NewClient returns a client with all the appropriate info setup.
func NewClient(server *Server, conn net.Conn, isTLS bool) *Client {
// NewClient sets up a new client and starts its goroutine.
func NewClient(server *Server, conn net.Conn, isTLS bool) {
now := time.Now()
config := server.Config()
fullLineLenLimit := config.Limits.LineLen.Tags + config.Limits.LineLen.Rest
@ -114,15 +113,17 @@ func NewClient(server *Server, conn net.Conn, isTLS bool) *Client {
}
if config.Server.CheckIdent && !utils.AddrIsUnix(conn.RemoteAddr()) {
_, serverPortString, err := net.SplitHostPort(conn.LocalAddr().String())
if err != nil {
server.logger.Error("internal", "bad server address", err.Error())
return
}
serverPort, _ := strconv.Atoi(serverPortString)
if err != nil {
log.Fatal(err)
}
clientHost, clientPortString, err := net.SplitHostPort(conn.RemoteAddr().String())
clientPort, _ := strconv.Atoi(clientPortString)
if err != nil {
log.Fatal(err)
server.logger.Error("internal", "bad client address", err.Error())
return
}
clientPort, _ := strconv.Atoi(clientPortString)
client.Notice(client.t("*** Looking up your username"))
resp, err := ident.Query(clientHost, serverPort, clientPort, IdentTimeoutSeconds)
@ -141,8 +142,6 @@ func NewClient(server *Server, conn net.Conn, isTLS bool) *Client {
}
}
go client.run()
return client
}
func (client *Client) resetFakelag() {

6
irc/config.go
View File

@ -410,17 +410,17 @@ func (conf *Config) Operators(oc map[string]*OperClass) (map[string]*Oper, error
}
// TLSListeners returns a list of TLS listeners and their configs.
func (conf *Config) TLSListeners() map[string]*tls.Config {
func (conf *Config) TLSListeners() (map[string]*tls.Config, error) {
tlsListeners := make(map[string]*tls.Config)
for s, tlsListenersConf := range conf.Server.TLSListeners {
config, err := tlsListenersConf.Config()
if err != nil {
log.Fatal(err)
return nil, err
}
config.ClientAuth = tls.RequestClientCert
tlsListeners[s] = config
}
return tlsListeners
return tlsListeners, nil
}
// LoadConfig loads the given YAML configuration file.

11
irc/logger/logger.go
View File

@ -124,7 +124,9 @@ func (logger *Manager) ApplyConfig(config []LoggingConfig) error {
stdoutWriteLock: &logger.stdoutWriteLock,
fileWriteLock: &logger.fileWriteLock,
}
if typeMap["userinput"] || typeMap["useroutput"] || (typeMap["*"] && !(excludedTypeMap["userinput"] && excludedTypeMap["useroutput"])) {
ioEnabled := typeMap["userinput"] || typeMap["useroutput"] || (typeMap["*"] && !(excludedTypeMap["userinput"] && excludedTypeMap["useroutput"]))
// raw I/O is only logged at level debug;
if ioEnabled && logConfig.Level == LogDebug {
atomic.StoreUint32(&logger.loggingRawIO, 1)
}
if sLogger.MethodFile.Enabled {
@ -177,13 +179,6 @@ func (logger *Manager) Error(logType string, messageParts ...string) {
logger.Log(LogError, logType, messageParts...)
}
// Fatal logs the given message as an error message, then exits.
func (logger *Manager) Fatal(logType string, messageParts ...string) {
logger.Error(logType, messageParts...)
logger.Error("FATAL", "Fatal error encountered, application exiting")
os.Exit(1)
}
type fileMethod struct {
Enabled bool
Filename string

7
irc/nickserv.go
View File

@ -20,6 +20,11 @@ func servCmdRequiresAuthEnabled(server *Server) bool {
return server.AccountConfig().AuthenticationEnabled
}
func nsGroupEnabled(server *Server) bool {
conf := server.Config()
return conf.Accounts.AuthenticationEnabled && conf.Accounts.NickReservation.Enabled
}
const nickservHelp = `NickServ lets you register and login to an account.
To see in-depth help for a specific NickServ command, try:
@ -55,7 +60,7 @@ same user account, letting you reclaim your nickname.`,
GROUP links your current nickname with your logged-in account, preventing other
users from changing to it (or forcing them to rename).`,
helpShort: `$bGROUP$b links your current nickname to your user account.`,
enabled: servCmdRequiresAccreg,
enabled: nsGroupEnabled,
authRequired: true,
},

36
irc/server.go
View File

@ -10,7 +10,6 @@ import (
"crypto/tls"
"encoding/base64"
"fmt"
"log"
"math/rand"
"net"
"net/http"
@ -328,8 +327,8 @@ func (server *Server) checkBans(ipaddr net.IP) (banned bool, message string) {
// IRC protocol listeners
//
// createListener starts the given listeners.
func (server *Server) createListener(addr string, tlsConfig *tls.Config) *ListenerWrapper {
// createListener starts a given listener.
func (server *Server) createListener(addr string, tlsConfig *tls.Config) (*ListenerWrapper, error) {
// make listener
var listener net.Listener
var err error
@ -342,7 +341,7 @@ func (server *Server) createListener(addr string, tlsConfig *tls.Config) *Listen
listener, err = net.Listen("tcp", addr)
}
if err != nil {
log.Fatal(server, "listen error: ", err)
return nil, err
}
// throw our details to the server so we can be modified/killed later
@ -385,7 +384,7 @@ func (server *Server) createListener(addr string, tlsConfig *tls.Config) *Listen
}
}()
return &wrapper
return &wrapper, nil
}
// generateMessageID returns a network-unique message ID.
@ -899,7 +898,7 @@ func (server *Server) applyConfig(config *Config, initial bool) (err error) {
}
// we are now open for business
server.setupListeners(config)
err = server.setupListeners(config)
if !initial {
// push new info to all of our clients
@ -914,7 +913,7 @@ func (server *Server) applyConfig(config *Config, initial bool) (err error) {
}
}
return nil
return err
}
func (server *Server) setupPprofListener(config *Config) {
@ -1024,15 +1023,20 @@ func (server *Server) loadDatastore(config *Config) error {
return nil
}
func (server *Server) setupListeners(config *Config) {
func (server *Server) setupListeners(config *Config) (err error) {
logListener := func(addr string, tlsconfig *tls.Config) {
server.logger.Info("listeners",
fmt.Sprintf("now listening on %s, tls=%t.", addr, (tlsconfig != nil)),
)
}
tlsListeners, err := config.TLSListeners()
if err != nil {
server.logger.Error("rehash", "failed to reload TLS certificates, aborting rehash", err.Error())
return
}
// update or destroy all existing listeners
tlsListeners := config.TLSListeners()
for addr := range server.listeners {
currentListener := server.listeners[addr]
var stillConfigured bool
@ -1068,7 +1072,13 @@ func (server *Server) setupListeners(config *Config) {
if !exists {
// make new listener
tlsConfig := tlsListeners[newaddr]
server.listeners[newaddr] = server.createListener(newaddr, tlsConfig)
listener, listenerErr := server.createListener(newaddr, tlsConfig)
if listenerErr != nil {
server.logger.Error("rehash", "couldn't listen on", newaddr, listenerErr.Error())
err = listenerErr
continue
}
server.listeners[newaddr] = listener
logListener(newaddr, tlsConfig)
}
}
@ -1078,8 +1088,8 @@ func (server *Server) setupListeners(config *Config) {
}
var usesStandardTLSPort bool
for addr := range config.TLSListeners() {
if strings.Contains(addr, "6697") {
for addr := range tlsListeners {
if strings.HasSuffix(addr, ":6697") {
usesStandardTLSPort = true
break
}
@ -1087,6 +1097,8 @@ func (server *Server) setupListeners(config *Config) {
if 0 < len(tlsListeners) && !usesStandardTLSPort {
server.logger.Warning("startup", "Port 6697 is the standard TLS port for IRC. You should (also) expose port 6697 as a TLS port to ensure clients can connect securely")
}
return
}
// elistMatcher takes and matches ELIST conditions