119 lines
3.1 KiB
Go
119 lines
3.1 KiB
Go
package soju
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import (
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"time"
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"gopkg.in/irc.v3"
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)
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type messageLogger struct {
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conn *upstreamConn
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entity string
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filename string
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file *os.File
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}
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func newMessageLogger(uc *upstreamConn, entity string) *messageLogger {
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return &messageLogger{
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conn: uc,
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entity: entity,
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}
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}
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func (ml *messageLogger) Append(msg *irc.Message) error {
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s := formatMessage(msg)
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if s == "" {
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return nil
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}
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// TODO: parse time from msg.Tags["time"], if available
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// TODO: enforce maximum open file handles (LRU cache of file handles)
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// TODO: handle non-monotonic clock behaviour
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now := time.Now()
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year, month, day := now.Date()
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filename := fmt.Sprintf("%04d-%02d-%02d.log", year, month, day)
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if ml.filename != filename {
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if ml.file != nil {
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ml.file.Close()
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}
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// TODO: handle/forbid network/entity names with illegal path characters
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dir := filepath.Join(ml.conn.srv.LogPath, ml.conn.user.Username, ml.conn.network.GetName(), ml.entity)
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if err := os.MkdirAll(dir, 0700); err != nil {
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return fmt.Errorf("failed to create logs directory %q: %v", dir, err)
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}
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path := filepath.Join(dir, filename)
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f, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0600)
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if err != nil {
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return fmt.Errorf("failed to open log file %q: %v", path, err)
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}
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ml.filename = filename
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ml.file = f
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}
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_, err := fmt.Fprintf(ml.file, "[%02d:%02d:%02d] %s\n", now.Hour(), now.Minute(), now.Second(), s)
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if err != nil {
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return fmt.Errorf("failed to log message to %q: %v", ml.filename, err)
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}
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return nil
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}
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func (ml *messageLogger) Close() error {
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if ml.file == nil {
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return nil
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}
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return ml.file.Close()
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}
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// formatMessage formats a message log line. It assumes a well-formed IRC
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// message.
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func formatMessage(msg *irc.Message) string {
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switch strings.ToUpper(msg.Command) {
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case "NICK":
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return fmt.Sprintf("*** %s is now known as %s", msg.Prefix.Name, msg.Params[0])
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case "JOIN":
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return fmt.Sprintf("*** Joins: %s (%s@%s)", msg.Prefix.Name, msg.Prefix.User, msg.Prefix.Host)
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case "PART":
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var reason string
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if len(msg.Params) > 1 {
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reason = msg.Params[1]
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}
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return fmt.Sprintf("*** Parts: %s (%s@%s) (%s)", msg.Prefix.Name, msg.Prefix.User, msg.Prefix.Host, reason)
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case "KICK":
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nick := msg.Params[1]
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var reason string
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if len(msg.Params) > 2 {
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reason = msg.Params[2]
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}
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return fmt.Sprintf("*** %s was kicked by %s (%s)", nick, msg.Prefix.Name, reason)
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case "QUIT":
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var reason string
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if len(msg.Params) > 0 {
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reason = msg.Params[0]
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}
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return fmt.Sprintf("*** Quits: %s (%s@%s) (%s)", msg.Prefix.Name, msg.Prefix.User, msg.Prefix.Host, reason)
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case "TOPIC":
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var topic string
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if len(msg.Params) > 1 {
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topic = msg.Params[1]
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}
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return fmt.Sprintf("*** %s changes topic to '%s'", msg.Prefix.Name, topic)
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case "MODE":
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return fmt.Sprintf("*** %s sets mode: %s", msg.Prefix.Name, strings.Join(msg.Params[1:], " "))
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case "NOTICE":
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return fmt.Sprintf("-%s- %s", msg.Prefix.Name, msg.Params[1])
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case "PRIVMSG":
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return fmt.Sprintf("<%s> %s", msg.Prefix.Name, msg.Params[1])
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default:
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return ""
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}
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}
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