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Refactor channel and user management (slack) (#766)

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This commit is contained in:
Duco van Amstel 2019-03-15 20:23:09 +00:00 committed by Wim
parent b638f7037a
commit fb2667631d
4 changed files with 138 additions and 94 deletions
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48
bridge/slack/handlers.go
View File

@ -34,7 +34,7 @@ func (b *Bslack) handleSlack() {
message.Text = html.UnescapeString(message.Text)
// Add the avatar
message.Avatar = b.getAvatar(message.UserID)
message.Avatar = b.users.getAvatar(message.UserID)
b.Log.Debugf("<= Message is %#v", message)
b.Remote <- *message
@ -75,20 +75,17 @@ func (b *Bslack) handleSlackClient(messages chan *config.Message) {
// When we join a channel we update the full list of users as
// well as the information for the channel that we joined as this
// should now tell that we are a member of it.
b.channelsMutex.Lock()
b.channelsByID[ev.Channel.ID] = &ev.Channel
b.channelsByName[ev.Channel.Name] = &ev.Channel
b.channelsMutex.Unlock()
b.channels.registerChannel(ev.Channel)
case *slack.ConnectedEvent:
b.si = ev.Info
b.populateChannels(true)
b.populateUsers(true)
b.channels.populateChannels(true)
b.users.populateUsers(true)
case *slack.InvalidAuthEvent:
b.Log.Fatalf("Invalid Token %#v", ev)
case *slack.ConnectionErrorEvent:
b.Log.Errorf("Connection failed %#v %#v", ev.Error(), ev.ErrorObj)
case *slack.MemberJoinedChannelEvent:
b.populateUser(ev.User)
b.users.populateUser(ev.User)
case *slack.LatencyReport:
continue
default:
@ -210,7 +207,7 @@ func (b *Bslack) handleStatusEvent(ev *slack.MessageEvent, rmsg *config.Message)
rmsg.Username = sSystemUser
rmsg.Event = config.EventJoinLeave
case sChannelTopic, sChannelPurpose:
b.populateChannels(false)
b.channels.populateChannels(false)
rmsg.Event = config.EventTopicChange
case sMessageChanged:
rmsg.Text = ev.SubMessage.Text
@ -266,7 +263,7 @@ func (b *Bslack) handleAttachments(ev *slack.MessageEvent, rmsg *config.Message)
}
func (b *Bslack) handleTypingEvent(ev *slack.UserTypingEvent) (*config.Message, error) {
channelInfo, err := b.getChannelByID(ev.Channel)
channelInfo, err := b.channels.getChannelByID(ev.Channel)
if err != nil {
return nil, err
}
@ -316,36 +313,7 @@ func (b *Bslack) handleGetChannelMembers(rmsg *config.Message) bool {
return false
}
cMembers := config.ChannelMembers{}
b.channelMembersMutex.RLock()
for channelID, members := range b.channelMembers {
for _, member := range members {
channelName := ""
userName := ""
userNick := ""
user := b.getUser(member)
if user != nil {
userName = user.Name
userNick = user.Profile.DisplayName
}
channel, _ := b.getChannelByID(channelID)
if channel != nil {
channelName = channel.Name
}
cMember := config.ChannelMember{
Username: userName,
Nick: userNick,
UserID: member,
ChannelID: channelID,
ChannelName: channelName,
}
cMembers = append(cMembers, cMember)
}
}
b.channelMembersMutex.RUnlock()
cMembers := b.channels.getChannelMembers(b.users)
extra := make(map[string][]interface{})
extra[config.EventGetChannelMembers] = append(extra[config.EventGetChannelMembers], cMembers)

6
bridge/slack/helpers.go
View File

@ -15,7 +15,7 @@ import (
// router before we apply message-dependent modifications.
func (b *Bslack) populateReceivedMessage(ev *slack.MessageEvent) (*config.Message, error) {
// Use our own func because rtm.GetChannelInfo doesn't work for private channels.
channel, err := b.getChannelByID(ev.Channel)
channel, err := b.channels.getChannelByID(ev.Channel)
if err != nil {
return nil, err
}
@ -77,7 +77,7 @@ func (b *Bslack) populateMessageWithUserInfo(ev *slack.MessageEvent, rmsg *confi
return nil
}
user := b.getUser(userID)
user := b.users.getUser(userID)
if user == nil {
return fmt.Errorf("could not find information for user with id %s", ev.User)
}
@ -148,7 +148,7 @@ func (b *Bslack) extractTopicOrPurpose(text string) (string, string) {
func (b *Bslack) replaceMention(text string) string {
replaceFunc := func(match string) string {
userID := strings.Trim(match, "@<>")
if username := b.getUsername(userID); userID != "" {
if username := b.users.getUsername(userID); userID != "" {
return "@" + username
}
return match

38
bridge/slack/slack.go
View File

@ -30,20 +30,8 @@ type Bslack struct {
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
channelMembers map[string][]string
channelMembersMutex sync.RWMutex
refreshInProgress bool
earliestChannelRefresh time.Time
earliestUserRefresh time.Time
refreshMutex sync.Mutex
channels *channels
users *users
}
const (
@ -94,14 +82,9 @@ func newBridge(cfg *bridge.Config) *Bslack {
cfg.Log.Fatalf("Could not create LRU cache for Slack bridge: %v", err)
}
b := &Bslack{
Config: cfg,
uuid: xid.New().String(),
cache: newCache,
users: map[string]*slack.User{},
channelsByID: map[string]*slack.Channel{},
channelsByName: map[string]*slack.Channel{},
earliestChannelRefresh: time.Now(),
earliestUserRefresh: time.Now(),
Config: cfg,
uuid: xid.New().String(),
cache: newCache,
}
return b
}
@ -121,7 +104,12 @@ func (b *Bslack) Connect() error {
// If we have a token we use the Slack websocket-based RTM for both sending and receiving.
if token := b.GetString(tokenConfig); token != "" {
b.Log.Info("Connecting using token")
b.sc = slack.New(token, slack.OptionDebug(b.GetBool("Debug")))
b.channels = newChannelManager(b.Log, b.sc)
b.users = newUserManager(b.Log, b.sc)
b.rtm = b.sc.NewRTM()
go b.rtm.ManageConnection()
go b.handleSlack()
@ -163,9 +151,9 @@ func (b *Bslack) JoinChannel(channel config.ChannelInfo) error {
return nil
}
b.populateChannels(false)
b.channels.populateChannels(false)
channelInfo, err := b.getChannel(channel.Name)
channelInfo, err := b.channels.getChannel(channel.Name)
if err != nil {
return fmt.Errorf("could not join channel: %#v", err)
}
@ -275,7 +263,7 @@ func (b *Bslack) sendRTM(msg config.Message) (string, error) {
return "", nil
}
channelInfo, err := b.getChannel(msg.Channel)
channelInfo, err := b.channels.getChannel(msg.Channel)
if err != nil {
return "", fmt.Errorf("could not send message: %v", err)
}

140
bridge/slack/users_channels.go
View File

@ -4,14 +4,38 @@ import (
"context"
"fmt"
"strings"
"sync"
"time"
"github.com/42wim/matterbridge/bridge/config"
"github.com/nlopes/slack"
"github.com/sirupsen/logrus"
)
const minimumRefreshInterval = 10 * time.Second
func (b *Bslack) getUser(id string) *slack.User {
type users struct {
log *logrus.Entry
sc *slack.Client
users map[string]*slack.User
usersMutex sync.RWMutex
refreshInProgress bool
earliestRefresh time.Time
refreshMutex sync.Mutex
}
func newUserManager(log *logrus.Entry, sc *slack.Client) *users {
return &users{
log: log,
sc: sc,
users: make(map[string]*slack.User),
earliestRefresh: time.Now(),
}
}
func (b *users) getUser(id string) *slack.User {
b.usersMutex.RLock()
user, ok := b.users[id]
b.usersMutex.RUnlock()
@ -25,25 +49,25 @@ func (b *Bslack) getUser(id string) *slack.User {
return b.users[id]
}
func (b *Bslack) getUsername(id string) string {
func (b *users) getUsername(id string) string {
if user := b.getUser(id); user != nil {
if user.Profile.DisplayName != "" {
return user.Profile.DisplayName
}
return user.Name
}
b.Log.Warnf("Could not find user with ID '%s'", id)
b.log.Warnf("Could not find user with ID '%s'", id)
return ""
}
func (b *Bslack) getAvatar(id string) string {
func (b *users) getAvatar(id string) string {
if user := b.getUser(id); user != nil {
return user.Profile.Image48
}
return ""
}
func (b *Bslack) populateUser(userID string) {
func (b *users) populateUser(userID string) {
b.usersMutex.RLock()
_, exists := b.users[userID]
b.usersMutex.RUnlock()
@ -54,7 +78,7 @@ func (b *Bslack) populateUser(userID string) {
user, err := b.sc.GetUserInfo(userID)
if err != nil {
b.Log.Debugf("GetUserInfo failed for %v: %v", userID, err)
b.log.Debugf("GetUserInfo failed for %v: %v", userID, err)
return
}
@ -63,10 +87,10 @@ func (b *Bslack) populateUser(userID string) {
b.usersMutex.Unlock()
}
func (b *Bslack) populateUsers(wait bool) {
func (b *users) populateUsers(wait bool) {
b.refreshMutex.Lock()
if !wait && (time.Now().Before(b.earliestUserRefresh) || b.refreshInProgress) {
b.Log.Debugf("Not refreshing user list as it was done less than %v ago.",
if !wait && (time.Now().Before(b.earliestRefresh) || b.refreshInProgress) {
b.log.Debugf("Not refreshing user list as it was done less than %v ago.",
minimumRefreshInterval)
b.refreshMutex.Unlock()
@ -92,8 +116,8 @@ func (b *Bslack) populateUsers(wait bool) {
break
}
if err = handleRateLimit(b.Log, err); err != nil {
b.Log.Errorf("Could not retrieve users: %#v", err)
if err = handleRateLimit(b.log, err); err != nil {
b.log.Errorf("Could not retrieve users: %#v", err)
return
}
continue
@ -102,11 +126,11 @@ func (b *Bslack) populateUsers(wait bool) {
for i := range pagination.Users {
newUsers[pagination.Users[i].ID] = &pagination.Users[i]
}
b.Log.Debugf("getting %d users", len(pagination.Users))
b.log.Debugf("getting %d users", len(pagination.Users))
count++
// more > 2000 users, slack will complain and ratelimit. break
if count > 10 {
b.Log.Info("Large slack detected > 2000 users, skipping loading complete userlist.")
b.log.Info("Large slack detected > 2000 users, skipping loading complete userlist.")
break
}
}
@ -117,40 +141,104 @@ func (b *Bslack) populateUsers(wait bool) {
b.refreshMutex.Lock()
defer b.refreshMutex.Unlock()
b.earliestUserRefresh = time.Now().Add(minimumRefreshInterval)
b.earliestRefresh = time.Now().Add(minimumRefreshInterval)
b.refreshInProgress = false
}
func (b *Bslack) getChannel(channel string) (*slack.Channel, error) {
type channels struct {
log *logrus.Entry
sc *slack.Client
channelsByID map[string]*slack.Channel
channelsByName map[string]*slack.Channel
channelsMutex sync.RWMutex
channelMembers map[string][]string
channelMembersMutex sync.RWMutex
refreshInProgress bool
earliestRefresh time.Time
refreshMutex sync.Mutex
}
func newChannelManager(log *logrus.Entry, sc *slack.Client) *channels {
return &channels{
log: log,
sc: sc,
channelsByID: make(map[string]*slack.Channel),
channelsByName: make(map[string]*slack.Channel),
earliestRefresh: time.Now(),
}
}
func (b *channels) getChannel(channel string) (*slack.Channel, error) {
if strings.HasPrefix(channel, "ID:") {
return b.getChannelByID(strings.TrimPrefix(channel, "ID:"))
}
return b.getChannelByName(channel)
}
func (b *Bslack) getChannelByName(name string) (*slack.Channel, error) {
func (b *channels) getChannelByName(name string) (*slack.Channel, error) {
return b.getChannelBy(name, b.channelsByName)
}
func (b *Bslack) getChannelByID(id string) (*slack.Channel, error) {
func (b *channels) getChannelByID(id string) (*slack.Channel, error) {
return b.getChannelBy(id, b.channelsByID)
}
func (b *Bslack) getChannelBy(lookupKey string, lookupMap map[string]*slack.Channel) (*slack.Channel, error) {
func (b *channels) getChannelBy(lookupKey string, lookupMap map[string]*slack.Channel) (*slack.Channel, error) {
b.channelsMutex.RLock()
defer b.channelsMutex.RUnlock()
if channel, ok := lookupMap[lookupKey]; ok {
return channel, nil
}
return nil, fmt.Errorf("%s: channel %s not found", b.Account, lookupKey)
return nil, fmt.Errorf("channel %s not found", lookupKey)
}
func (b *Bslack) populateChannels(wait bool) {
func (b *channels) getChannelMembers(users *users) config.ChannelMembers {
b.channelMembersMutex.RLock()
defer b.channelMembersMutex.RUnlock()
membersInfo := config.ChannelMembers{}
for channelID, members := range b.channelMembers {
for _, member := range members {
channelName := ""
userName := ""
userNick := ""
user := users.getUser(member)
if user != nil {
userName = user.Name
userNick = user.Profile.DisplayName
}
channel, _ := b.getChannelByID(channelID)
if channel != nil {
channelName = channel.Name
}
memberInfo := config.ChannelMember{
Username: userName,
Nick: userNick,
UserID: member,
ChannelID: channelID,
ChannelName: channelName,
}
membersInfo = append(membersInfo, memberInfo)
}
}
return membersInfo
}
func (b *channels) registerChannel(channel slack.Channel) {
b.channelsMutex.Lock()
b.channelsByID[channel.ID] = &channel
b.channelsByName[channel.Name] = &channel
b.channelsMutex.Unlock()
}
func (b *channels) populateChannels(wait bool) {
b.refreshMutex.Lock()
if !wait && (time.Now().Before(b.earliestChannelRefresh) || b.refreshInProgress) {
b.Log.Debugf("Not refreshing channel list as it was done less than %v seconds ago.",
minimumRefreshInterval)
if !wait && (time.Now().Before(b.earliestRefresh) || b.refreshInProgress) {
b.log.Debugf("Not refreshing channel list as it was done less than %v seconds ago.", minimumRefreshInterval)
b.refreshMutex.Unlock()
return
}
@ -175,8 +263,8 @@ func (b *Bslack) populateChannels(wait bool) {
for {
channels, nextCursor, err := b.sc.GetConversations(queryParams)
if err != nil {
if err = handleRateLimit(b.Log, err); err != nil {
b.Log.Errorf("Could not retrieve channels: %#v", err)
if err = handleRateLimit(b.log, err); err != nil {
b.log.Errorf("Could not retrieve channels: %#v", err)
return
}
continue
@ -217,6 +305,6 @@ func (b *Bslack) populateChannels(wait bool) {
b.refreshMutex.Lock()
defer b.refreshMutex.Unlock()
b.earliestChannelRefresh = time.Now().Add(minimumRefreshInterval)
b.earliestRefresh = time.Now().Add(minimumRefreshInterval)
b.refreshInProgress = false
}