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|
package bdiscord
import (
"errors"
"regexp"
"strings"
"unicode"
"github.com/bwmarrin/discordgo"
)
func (b *Bdiscord) getNick(user *discordgo.User) string {
b.membersMutex.RLock()
defer b.membersMutex.RUnlock()
if member, ok := b.userMemberMap[user.ID]; ok {
if member.Nick != "" {
// Only return if nick is set.
return member.Nick
}
// Otherwise return username.
return user.Username
}
// If we didn't find nick, search for it.
member, err := b.c.GuildMember(b.guildID, user.ID)
if err != nil {
b.Log.Warnf("Failed to fetch information for member %#v: %#v", user, err)
return user.Username
} else if member == nil {
b.Log.Warnf("Got no information for member %#v", user)
return user.Username
}
b.userMemberMap[user.ID] = member
b.nickMemberMap[member.User.Username] = member
if member.Nick != "" {
b.nickMemberMap[member.Nick] = member
return member.Nick
}
return user.Username
}
func (b *Bdiscord) getGuildMemberByNick(nick string) (*discordgo.Member, error) {
b.membersMutex.RLock()
defer b.membersMutex.RUnlock()
if member, ok := b.nickMemberMap[nick]; ok {
return member, nil
}
return nil, errors.New("Couldn't find guild member with nick " + nick) // This will most likely get ignored by the caller
}
func (b *Bdiscord) getChannelID(name string) string {
b.channelsMutex.RLock()
defer b.channelsMutex.RUnlock()
idcheck := strings.Split(name, "ID:")
if len(idcheck) > 1 {
return idcheck[1]
}
for _, channel := range b.channels {
if channel.Name == name {
return channel.ID
}
}
return ""
}
func (b *Bdiscord) getChannelName(id string) string {
b.channelsMutex.RLock()
defer b.channelsMutex.RUnlock()
for _, channel := range b.channels {
if channel.ID == id {
return channel.Name
}
}
return ""
}
var (
// See https://discordapp.com/developers/docs/reference#message-formatting.
channelMentionRE = regexp.MustCompile("<#[0-9]+>")
emojiRE = regexp.MustCompile("<(:.*?:)[0-9]+>")
userMentionRE = regexp.MustCompile("@[^@\n]{1,32}")
)
func (b *Bdiscord) replaceChannelMentions(text string) string {
replaceChannelMentionFunc := func(match string) string {
var err error
channelID := match[2 : len(match)-1]
channelName := b.getChannelName(channelID)
// If we don't have the channel refresh our list.
if channelName == "" {
b.channels, err = b.c.GuildChannels(b.guildID)
if err != nil {
return "#unknownchannel"
}
channelName = b.getChannelName(channelID)
}
return "#" + channelName
}
return channelMentionRE.ReplaceAllStringFunc(text, replaceChannelMentionFunc)
}
func (b *Bdiscord) replaceUserMentions(text string) string {
replaceUserMentionFunc := func(match string) string {
var (
err error
member *discordgo.Member
username string
)
usernames := enumerateUsernames(match[1:])
for _, username = range usernames {
b.Log.Debugf("Testing mention: '%s'", username)
member, err = b.getGuildMemberByNick(username)
if err == nil {
break
}
}
if member == nil {
return match
}
return strings.Replace(match, "@"+username, member.User.Mention(), 1)
}
return userMentionRE.ReplaceAllStringFunc(text, replaceUserMentionFunc)
}
func (b *Bdiscord) stripCustomoji(text string) string {
return emojiRE.ReplaceAllString(text, `$1`)
}
func (b *Bdiscord) replaceAction(text string) (string, bool) {
if strings.HasPrefix(text, "_") && strings.HasSuffix(text, "_") {
return text[1:], true
}
return text, false
}
// splitURL splits a webhookURL and returns the ID and token.
func (b *Bdiscord) splitURL(url string) (string, string) {
const (
expectedWebhookSplitCount = 7
webhookIdxID = 5
webhookIdxToken = 6
)
webhookURLSplit := strings.Split(url, "/")
if len(webhookURLSplit) != expectedWebhookSplitCount {
b.Log.Fatalf("%s is no correct discord WebhookURL", url)
}
return webhookURLSplit[webhookIdxID], webhookURLSplit[webhookIdxToken]
}
func enumerateUsernames(s string) []string {
onlySpace := true
for _, r := range s {
if !unicode.IsSpace(r) {
onlySpace = false
break
}
}
if onlySpace {
return nil
}
var username, endSpace string
var usernames []string
skippingSpace := true
for _, r := range s {
if unicode.IsSpace(r) {
if !skippingSpace {
usernames = append(usernames, username)
skippingSpace = true
}
endSpace += string(r)
username += string(r)
} else {
endSpace = ""
username += string(r)
skippingSpace = false
}
}
if endSpace == "" {
usernames = append(usernames, username)
}
return usernames
}
|
