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Code Releases Activity

Clean up user and channel information management (slack) (#521)

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This commit is contained in:
Duco van Amstel 2018-10-16 19:34:09 +01:00 committed by Wim
parent 498377a230
commit 6238effdc2
3 changed files with 102 additions and 75 deletions
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24
bridge/slack/handlers.go
View File

@ -61,25 +61,11 @@ func (b *Bslack) handleSlackClient(messages chan *config.Message) {
case *slack.OutgoingErrorEvent:
b.Log.Debugf("%#v", ev.Error())
case *slack.ChannelJoinedEvent:
var err error
b.users, err = b.sc.GetUsers()
if err != nil {
b.Log.Errorf("Could not reload users: %#v", err)
}
b.populateUsers()
case *slack.ConnectedEvent:
var err error
b.channels, _, err = b.sc.GetConversations(&slack.GetConversationsParameters{
Limit: 1000,
Types: []string{"public_channel,private_channel,mpim,im"},
})
if err != nil {
b.Log.Errorf("Channel list failed: %#v", err)
}
b.si = ev.Info
b.users, err = b.sc.GetUsers()
if err != nil {
b.Log.Errorf("Could not reload users: %#v", err)
}
b.populateChannels()
b.populateUsers()
case *slack.InvalidAuthEvent:
b.Log.Fatalf("Invalid Token %#v", ev)
case *slack.ConnectionErrorEvent:
@ -163,9 +149,7 @@ func (b *Bslack) handleMessageEvent(ev *slack.MessageEvent) (*config.Message, er
// update the userlist on a channel_join
if ev.SubType == sChannelJoin {
if b.users, err = b.sc.GetUsers(); err != nil {
return nil, err
}
b.populateUsers()
}
// Edit message

73
bridge/slack/helpers.go
View File

@ -38,29 +38,74 @@ func (b *Bslack) getChannel(channel string) (*slack.Channel, error) {
}
func (b *Bslack) getChannelByName(name string) (*slack.Channel, error) {
if b.channels == nil {
return nil, fmt.Errorf("%s: channel %s not found (no channels found)", b.Account, name)
}
for _, channel := range b.channels {
if channel.Name == name {
return &channel, nil
}
b.channelsMutex.RLock()
defer b.channelsMutex.RUnlock()
if channel, ok := b.channelsByName[name]; ok {
return channel, nil
}
return nil, fmt.Errorf("%s: channel %s not found", b.Account, name)
}
func (b *Bslack) getChannelByID(ID string) (*slack.Channel, error) {
if b.channels == nil {
return nil, fmt.Errorf("%s: channel %s not found (no channels found)", b.Account, ID)
}
for _, channel := range b.channels {
if channel.ID == ID {
return &channel, nil
}
b.channelsMutex.RLock()
defer b.channelsMutex.RUnlock()
if channel, ok := b.channelsByID[ID]; ok {
return channel, nil
}
return nil, fmt.Errorf("%s: channel %s not found", b.Account, ID)
}
func (b *Bslack) populateUsers() {
users, err := b.sc.GetUsers()
if err != nil {
b.Log.Errorf("Could not reload users: %#v", err)
return
}
newUsers := map[string]*slack.User{}
for _, user := range users {
newUsers[user.ID] = &user
}
b.usersMutex.Lock()
defer b.usersMutex.Unlock()
b.users = newUsers
}
func (b *Bslack) populateChannels() {
newChannelsByID := map[string]*slack.Channel{}
newChannelsByName := map[string]*slack.Channel{}
// We only retrieve public and private channels, not IMs
// and MPIMs as those do not have a channel name.
queryParams := &slack.GetConversationsParameters{
ExcludeArchived: "true",
Types: []string{"public_channel,private_channel"},
}
for {
channels, nextCursor, err := b.sc.GetConversations(queryParams)
if err != nil {
b.Log.Errorf("Could not reload channels: %#v", err)
return
}
for i := 0; i < len(channels); i++ {
newChannelsByID[channels[i].ID] = &channels[i]
newChannelsByName[channels[i].Name] = &channels[i]
}
if nextCursor == "" {
break
}
queryParams.Cursor = nextCursor
}
b.channelsMutex.Lock()
defer b.channelsMutex.Unlock()
b.channelsByID = newChannelsByID
b.channelsByName = newChannelsByName
}
var (
mentionRE = regexp.MustCompile(`<@([a-zA-Z0-9]+)>`)
channelRE = regexp.MustCompile(`<#[a-zA-Z0-9]+\|(.+?)>`)

80
bridge/slack/slack.go
View File

@ -16,17 +16,24 @@ import (
)
type Bslack struct {
mh *matterhook.Client
sc *slack.Client
rtm *slack.RTM
users []slack.User
si *slack.Info
channels []slack.Channel
cache *lru.Cache
useChannelID bool
uuid string
*bridge.Config
sync.RWMutex
*bridge.Config
mh *matterhook.Client
sc *slack.Client
rtm *slack.RTM
si *slack.Info
cache *lru.Cache
uuid string
useChannelID bool
users map[string]*slack.User
usersMutex sync.RWMutex
channelsByID map[string]*slack.Channel
channelsByName map[string]*slack.Channel
channelsMutex sync.RWMutex
}
const (
@ -61,9 +68,12 @@ func New(cfg *bridge.Config) bridge.Bridger {
cfg.Log.Fatalf("Could not create LRU cache for Slack bridge: %v", err)
}
b := &Bslack{
Config: cfg,
uuid: xid.New().String(),
cache: newCache,
Config: cfg,
uuid: xid.New().String(),
cache: newCache,
users: map[string]*slack.User{},
channelsByID: map[string]*slack.Channel{},
channelsByName: map[string]*slack.Channel{},
}
return b
}
@ -132,37 +142,25 @@ func (b *Bslack) Disconnect() error {
return b.rtm.Disconnect()
}
// JoinChannel only acts as a verification method that checks whether Matterbridge's
// Slack integration is already member of the channel. This is because Slack does not
// allow apps or bots to join channels themselves and they need to be invited
// manually by a user.
func (b *Bslack) JoinChannel(channel config.ChannelInfo) error {
// use ID:channelid and resolve it to the actual name
idcheck := strings.Split(channel.Name, "ID:")
if len(idcheck) > 1 {
b.useChannelID = true
ch, err := b.sc.GetChannelInfo(idcheck[1])
if err != nil {
return err
}
channel.Name = ch.Name
if err != nil {
return err
}
b.populateChannels()
channelInfo, err := b.getChannel(channel.Name)
if err != nil {
return fmt.Errorf("could not join channel: %#v", err)
}
// we can only join channels using the API
if b.sc != nil {
if strings.HasPrefix(b.GetString(tokenConfig), "xoxb") {
// TODO check if bot has already joined channel
return nil
}
_, err := b.sc.JoinChannel(channel.Name)
if err != nil {
switch err.Error() {
case "name_taken", "restricted_action":
case "default":
{
return err
}
}
}
if strings.HasPrefix(channel.Name, "ID:") {
b.useChannelID = true
channel.Name = channelInfo.Name
}
if !channelInfo.IsMember {
return fmt.Errorf("slack integration that matterbridge is using is not member of channel '%s', please add it manually", channelInfo.Name)
}
return nil
}