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Truncate messages sent to IRC based on byte count (#368)

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* Truncate messages sent to IRC based on byte count

* Avoid unnecessary string allocations
This commit is contained in:
tsudoko 2018-02-08 23:28:33 +01:00 committed by Wim
parent 83c28cb857
commit 1d33e60e36
1 changed files with 6 additions and 2 deletions
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8
bridge/irc/irc.go
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@ -19,6 +19,7 @@ import (
"strconv" "strconv"
"strings" "strings"
"time" "time"
"unicode/utf8"
) )
type Birc struct { type Birc struct {
@ -200,9 +201,12 @@ func (b *Birc) Send(msg config.Message) (string, error) {
msg.Text = helper.SplitStringLength(msg.Text, b.Config.MessageLength) msg.Text = helper.SplitStringLength(msg.Text, b.Config.MessageLength)
} }
for _, text := range strings.Split(msg.Text, "\n") { for _, text := range strings.Split(msg.Text, "\n") {
input := []rune(text)
if len(text) > b.Config.MessageLength { if len(text) > b.Config.MessageLength {
text = string(input[:b.Config.MessageLength]) + " <message clipped>" text = text[:b.Config.MessageLength-len(" <message clipped>")]
if r, size := utf8.DecodeLastRuneInString(text); r == utf8.RuneError {
text = text[:len(text)-size]
}
text += " <message clipped>"
} }
if len(b.Local) < b.Config.MessageQueue { if len(b.Local) < b.Config.MessageQueue {
if len(b.Local) == b.Config.MessageQueue-1 { if len(b.Local) == b.Config.MessageQueue-1 {