Many fixes and additions

[goircd.git] / log.go

diff --git a/log.go b/log.go
new file mode 100644 (file)
index 0000000..08367cb
--- /dev/null
+++ b/log.go
@@ -0,0 +1,72 @@
+/*
+goircd -- minimalistic simple Internet Relay Chat (IRC) server
+Copyright (C) 2014-2020 Sergey Matveev <stargrave@stargrave.org>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, version 3 of the License.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package main
+
+import (
+       "fmt"
+       "log"
+       "os"
+       "path"
+       "time"
+)
+
+const (
+       FormatMsg  = "[%s] <%s> %s\n"
+       FormatMeta = "[%s] * %s %s\n"
+)
+
+var logSink chan LogEvent = make(chan LogEvent)
+
+type LogEvent struct {
+       where string
+       who   string
+       what  string
+       meta  bool
+}
+
+func Logger(logdir string, events <-chan LogEvent) {
+       mode := os.O_CREATE | os.O_WRONLY | os.O_APPEND
+       perm := os.FileMode(permLogFile)
+       var format string
+       var logfile string
+       var fd *os.File
+       var err error
+       for event := range events {
+               logfile = path.Join(logdir, event.where+".log")
+               fd, err = os.OpenFile(logfile, mode, perm)
+               if err != nil {
+                       log.Println("can not open logfile", logfile, err)
+                       continue
+               }
+               if event.meta {
+                       format = FormatMeta
+               } else {
+                       format = FormatMsg
+               }
+               _, err = fd.WriteString(fmt.Sprintf(
+                       format,
+                       time.Now().Format(time.RFC3339),
+                       event.who,
+                       event.what,
+               ))
+               fd.Close()
+               if err != nil {
+                       log.Println("error writing to logfile", logfile, err)
+               }
+       }
+}