diff options
Diffstat (limited to 'bridge')
| -rw-r--r-- | bridge/slack/handlers.go | 337 | ||||
| -rw-r--r-- | bridge/slack/helpers.go | 116 | ||||
| -rw-r--r-- | bridge/slack/slack.go | 447 |
3 files changed, 453 insertions, 447 deletions
diff --git a/bridge/slack/handlers.go b/bridge/slack/handlers.go new file mode 100644 index 00000000..1ef2d614 --- /dev/null +++ b/bridge/slack/handlers.go @@ -0,0 +1,337 @@ +package bslack + +import ( + "bytes" + "fmt" + "html" + "regexp" + "time" + + "github.com/42wim/matterbridge/bridge/config" + "github.com/42wim/matterbridge/bridge/helper" + "github.com/nlopes/slack" +) + +func (b *Bslack) handleSlack() { + messages := make(chan *config.Message) + if b.GetString("WebhookBindAddress") != "" { + b.Log.Debugf("Choosing webhooks based receiving") + go b.handleMatterHook(messages) + } else { + b.Log.Debugf("Choosing token based receiving") + go b.handleSlackClient(messages) + } + time.Sleep(time.Second) + b.Log.Debug("Start listening for Slack messages") + for message := range messages { + b.Log.Debugf("<= Sending message from %s on %s to gateway", message.Username, b.Account) + + // cleanup the message + message.Text = b.replaceMention(message.Text) + message.Text = b.replaceVariable(message.Text) + message.Text = b.replaceChannel(message.Text) + message.Text = b.replaceURL(message.Text) + message.Text = html.UnescapeString(message.Text) + + // Add the avatar + message.Avatar = b.getAvatar(message.UserID) + + b.Log.Debugf("<= Message is %#v", message) + b.Remote <- *message + } +} + +func (b *Bslack) handleSlackClient(messages chan *config.Message) { + for msg := range b.rtm.IncomingEvents { + if msg.Type != "user_typing" && msg.Type != "latency_report" { + b.Log.Debugf("== Receiving event %#v", msg.Data) + } + switch ev := msg.Data.(type) { + case *slack.MessageEvent: + if b.skipMessageEvent(ev) { + b.Log.Debugf("Skipped message: %#v", ev) + continue + } + rmsg, err := b.handleMessageEvent(ev) + if err != nil { + b.Log.Errorf("%#v", err) + continue + } + messages <- rmsg + case *slack.OutgoingErrorEvent: + b.Log.Debugf("%#v", ev.Error()) + case *slack.ChannelJoinedEvent: + b.Users, _ = b.sc.GetUsers() + b.Usergroups, _ = b.sc.GetUserGroups() + 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, _ = b.sc.GetUsers() + b.Usergroups, _ = b.sc.GetUserGroups() + case *slack.InvalidAuthEvent: + b.Log.Fatalf("Invalid Token %#v", ev) + case *slack.ConnectionErrorEvent: + b.Log.Errorf("Connection failed %#v %#v", ev.Error(), ev.ErrorObj) + default: + } + } +} + +func (b *Bslack) handleMatterHook(messages chan *config.Message) { + for { + message := b.mh.Receive() + b.Log.Debugf("receiving from matterhook (slack) %#v", message) + if message.UserName == "slackbot" { + continue + } + messages <- &config.Message{Username: message.UserName, Text: message.Text, Channel: message.ChannelName} + } +} + +// handleDownloadFile handles file download +func (b *Bslack) handleDownloadFile(rmsg *config.Message, file *slack.File) error { + // if we have a file attached, download it (in memory) and put a pointer to it in msg.Extra + // limit to 1MB for now + comment := "" + results := regexp.MustCompile(`.*?commented: (.*)`).FindAllStringSubmatch(rmsg.Text, -1) + if len(results) > 0 { + comment = results[0][1] + } + err := helper.HandleDownloadSize(b.Log, rmsg, file.Name, int64(file.Size), b.General) + if err != nil { + return err + } + // actually download the file + data, err := helper.DownloadFileAuth(file.URLPrivateDownload, "Bearer "+b.GetString("Token")) + if err != nil { + return fmt.Errorf("download %s failed %#v", file.URLPrivateDownload, err) + } + // add the downloaded data to the message + helper.HandleDownloadData(b.Log, rmsg, file.Name, comment, file.URLPrivateDownload, data, b.General) + return nil +} + +// handleUploadFile handles native upload of files +func (b *Bslack) handleUploadFile(msg *config.Message, channelID string) (string, error) { + for _, f := range msg.Extra["file"] { + fi := f.(config.FileInfo) + if msg.Text == fi.Comment { + msg.Text = "" + } + /* because the result of the UploadFile is slower than the MessageEvent from slack + we can't match on the file ID yet, so we have to match on the filename too + */ + b.Log.Debugf("Adding file %s to cache %s", fi.Name, time.Now().String()) + b.cache.Add("filename"+fi.Name, time.Now()) + res, err := b.sc.UploadFile(slack.FileUploadParameters{ + Reader: bytes.NewReader(*fi.Data), + Filename: fi.Name, + Channels: []string{channelID}, + InitialComment: fi.Comment, + }) + if res.ID != "" { + b.Log.Debugf("Adding fileid %s to cache %s", res.ID, time.Now().String()) + b.cache.Add("file"+res.ID, time.Now()) + } + if err != nil { + b.Log.Errorf("uploadfile %#v", err) + } + } + return "", nil +} + +// handleMessageEvent handles the message events +func (b *Bslack) handleMessageEvent(ev *slack.MessageEvent) (*config.Message, error) { + // update the userlist on a channel_join + if ev.SubType == "channel_join" { + b.Users, _ = b.sc.GetUsers() + } + + // Edit message + if !b.GetBool("EditDisable") && ev.SubMessage != nil && ev.SubMessage.ThreadTimestamp != ev.SubMessage.Timestamp { + b.Log.Debugf("SubMessage %#v", ev.SubMessage) + ev.User = ev.SubMessage.User + ev.Text = ev.SubMessage.Text + b.GetString("EditSuffix") + } + + // use our own func because rtm.GetChannelInfo doesn't work for private channels + channel, err := b.getChannelByID(ev.Channel) + if err != nil { + return nil, err + } + + rmsg := config.Message{Text: ev.Text, Channel: channel.Name, Account: b.Account, ID: "slack " + ev.Timestamp, Extra: make(map[string][]interface{})} + + if b.UseChannelID { + rmsg.Channel = "ID:" + channel.ID + } + + // find the user id and name + if ev.User != "" && ev.SubType != messageDeleted && ev.SubType != "file_comment" { + user, err := b.rtm.GetUserInfo(ev.User) + if err != nil { + return nil, err + } + rmsg.UserID = user.ID + rmsg.Username = user.Name + if user.Profile.DisplayName != "" { + rmsg.Username = user.Profile.DisplayName + } + } + + // See if we have some text in the attachments + if rmsg.Text == "" { + for _, attach := range ev.Attachments { + if attach.Text != "" { + if attach.Title != "" { + rmsg.Text = attach.Title + "\n" + } + rmsg.Text += attach.Text + } else { + rmsg.Text = attach.Fallback + } + } + } + + // when using webhookURL we can't check if it's our webhook or not for now + if rmsg.Username == "" && ev.BotID != "" && b.GetString("WebhookURL") == "" { + bot, err := b.rtm.GetBotInfo(ev.BotID) + if err != nil { + return nil, err + } + if bot.Name != "" { + rmsg.Username = bot.Name + if ev.Username != "" { + rmsg.Username = ev.Username + } + rmsg.UserID = bot.ID + } + + // fixes issues with matterircd users + if bot.Name == "Slack API Tester" { + user, err := b.rtm.GetUserInfo(ev.User) + if err != nil { + return nil, err + } + rmsg.UserID = user.ID + rmsg.Username = user.Name + if user.Profile.DisplayName != "" { + rmsg.Username = user.Profile.DisplayName + } + } + } + + // file comments are set by the system (because there is no username given) + if ev.SubType == "file_comment" { + rmsg.Username = "system" + } + + // do we have a /me action + if ev.SubType == "me_message" { + rmsg.Event = config.EVENT_USER_ACTION + } + + // Handle join/leave + if ev.SubType == "channel_leave" || ev.SubType == "channel_join" { + rmsg.Username = "system" + rmsg.Event = config.EVENT_JOIN_LEAVE + } + + // edited messages have a submessage, use this timestamp + if ev.SubMessage != nil { + rmsg.ID = "slack " + ev.SubMessage.Timestamp + } + + // deleted message event + if ev.SubType == messageDeleted { + rmsg.Text = config.EVENT_MSG_DELETE + rmsg.Event = config.EVENT_MSG_DELETE + rmsg.ID = "slack " + ev.DeletedTimestamp + } + + // topic change event + if ev.SubType == "channel_topic" || ev.SubType == "channel_purpose" { + rmsg.Event = config.EVENT_TOPIC_CHANGE + } + + // Only deleted messages can have a empty username and text + if (rmsg.Text == "" || rmsg.Username == "") && ev.SubType != messageDeleted && len(ev.Files) == 0 { + // this is probably a webhook we couldn't resolve + if ev.BotID != "" { + return nil, fmt.Errorf("probably an incoming webhook we couldn't resolve (maybe ourselves)") + } + return nil, fmt.Errorf("empty message and not a deleted message") + } + + // save the attachments, so that we can send them to other slack (compatible) bridges + if len(ev.Attachments) > 0 { + rmsg.Extra["slack_attachment"] = append(rmsg.Extra["slack_attachment"], ev.Attachments) + } + + // if we have a file attached, download it (in memory) and put a pointer to it in msg.Extra + if len(ev.Files) > 0 { + for _, f := range ev.Files { + err := b.handleDownloadFile(&rmsg, &f) + if err != nil { + b.Log.Errorf("download failed: %s", err) + } + } + } + + return &rmsg, nil +} + +// skipMessageEvent skips event that need to be skipped :-) +func (b *Bslack) skipMessageEvent(ev *slack.MessageEvent) bool { + if ev.SubType == "channel_leave" || ev.SubType == "channel_join" { + return b.GetBool("nosendjoinpart") + } + + // ignore pinned items + if ev.SubType == "pinned_item" || ev.SubType == "unpinned_item" { + return true + } + + // do not send messages from ourself + if b.GetString("WebhookURL") == "" && b.GetString("WebhookBindAddress") == "" && ev.Username == b.si.User.Name { + return true + } + + // skip messages we made ourselves + if len(ev.Attachments) > 0 { + if ev.Attachments[0].CallbackID == "matterbridge_"+b.uuid { + return true + } + } + + if !b.GetBool("EditDisable") && ev.SubMessage != nil && ev.SubMessage.ThreadTimestamp != ev.SubMessage.Timestamp { + // it seems ev.SubMessage.Edited == nil when slack unfurls + // do not forward these messages #266 + if ev.SubMessage.Edited == nil { + return true + } + } + + if len(ev.Files) > 0 { + for _, f := range ev.Files { + // if the file is in the cache and isn't older then a minute, skip it + if ts, ok := b.cache.Get("file" + f.ID); ok && time.Since(ts.(time.Time)) < time.Minute { + b.Log.Debugf("Not downloading file id %s which we uploaded", f.ID) + return true + } else { + if ts, ok := b.cache.Get("filename" + f.Name); ok && time.Since(ts.(time.Time)) < time.Second*10 { + b.Log.Debugf("Not downloading file name %s which we uploaded", f.Name) + return true + } else { + b.Log.Debugf("Not skipping %s %s", f.Name, time.Now().String()) + } + } + } + } + + return false +} diff --git a/bridge/slack/helpers.go b/bridge/slack/helpers.go new file mode 100644 index 00000000..273cf7c6 --- /dev/null +++ b/bridge/slack/helpers.go @@ -0,0 +1,116 @@ +package bslack + +import ( + "fmt" + "regexp" + "strings" + + "github.com/nlopes/slack" +) + +func (b *Bslack) userName(id string) string { + for _, u := range b.Users { + if u.ID == id { + if u.Profile.DisplayName != "" { + return u.Profile.DisplayName + } + return u.Name + } + } + return "" +} + +func (b *Bslack) getAvatar(userid string) string { + var avatar string + if b.Users != nil { + for _, u := range b.Users { + if userid == u.ID { + return u.Profile.Image48 + } + } + } + return avatar +} + +/* +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 + } + } + 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 + } + } + return nil, fmt.Errorf("%s: channel %s not found", b.Account, ID) +} + +func (b *Bslack) getChannelID(name string) string { + 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 "" +} + +// @see https://api.slack.com/docs/message-formatting#linking_to_channels_and_users +func (b *Bslack) replaceMention(text string) string { + results := regexp.MustCompile(`<@([a-zA-Z0-9]+)>`).FindAllStringSubmatch(text, -1) + for _, r := range results { + text = strings.Replace(text, "<@"+r[1]+">", "@"+b.userName(r[1]), -1) + } + return text +} + +// @see https://api.slack.com/docs/message-formatting#linking_to_channels_and_users +func (b *Bslack) replaceChannel(text string) string { + results := regexp.MustCompile(`<#[a-zA-Z0-9]+\|(.+?)>`).FindAllStringSubmatch(text, -1) + for _, r := range results { + text = strings.Replace(text, r[0], "#"+r[1], -1) + } + return text +} + +// @see https://api.slack.com/docs/message-formatting#variables +func (b *Bslack) replaceVariable(text string) string { + results := regexp.MustCompile(`<!((?:subteam\^)?[a-zA-Z0-9]+)(?:\|@?(.+?))?>`).FindAllStringSubmatch(text, -1) + for _, r := range results { + if r[2] != "" { + text = strings.Replace(text, r[0], "@"+r[2], -1) + } else { + text = strings.Replace(text, r[0], "@"+r[1], -1) + } + } + return text +} + +// @see https://api.slack.com/docs/message-formatting#linking_to_urls +func (b *Bslack) replaceURL(text string) string { + results := regexp.MustCompile(`<(.*?)(\|.*?)?>`).FindAllStringSubmatch(text, -1) + for _, r := range results { + if len(strings.TrimSpace(r[2])) == 1 { // A display text separator was found, but the text was blank + text = strings.Replace(text, r[0], "", -1) + } else { + text = strings.Replace(text, r[0], r[1], -1) + } + } + return text +} diff --git a/bridge/slack/slack.go b/bridge/slack/slack.go index e6f69ed8..6aa89375 100644 --- a/bridge/slack/slack.go +++ b/bridge/slack/slack.go @@ -1,14 +1,9 @@ package bslack import ( - "bytes" "errors" - "fmt" - "html" - "regexp" "strings" "sync" - "time" "github.com/42wim/matterbridge/bridge" "github.com/42wim/matterbridge/bridge/config" @@ -227,191 +222,6 @@ func (b *Bslack) Reload(cfg *bridge.Config) (string, error) { return "", nil } -func (b *Bslack) getAvatar(userid string) string { - var avatar string - if b.Users != nil { - for _, u := range b.Users { - if userid == u.ID { - return u.Profile.Image48 - } - } - } - return avatar -} - -/* -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 - } - } - 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 - } - } - return nil, fmt.Errorf("%s: channel %s not found", b.Account, ID) -} - -func (b *Bslack) handleSlack() { - messages := make(chan *config.Message) - if b.GetString("WebhookBindAddress") != "" { - b.Log.Debugf("Choosing webhooks based receiving") - go b.handleMatterHook(messages) - } else { - b.Log.Debugf("Choosing token based receiving") - go b.handleSlackClient(messages) - } - time.Sleep(time.Second) - b.Log.Debug("Start listening for Slack messages") - for message := range messages { - b.Log.Debugf("<= Sending message from %s on %s to gateway", message.Username, b.Account) - - // cleanup the message - message.Text = b.replaceMention(message.Text) - message.Text = b.replaceVariable(message.Text) - message.Text = b.replaceChannel(message.Text) - message.Text = b.replaceURL(message.Text) - message.Text = html.UnescapeString(message.Text) - - // Add the avatar - message.Avatar = b.getAvatar(message.UserID) - - b.Log.Debugf("<= Message is %#v", message) - b.Remote <- *message - } -} - -func (b *Bslack) handleSlackClient(messages chan *config.Message) { - for msg := range b.rtm.IncomingEvents { - if msg.Type != "user_typing" && msg.Type != "latency_report" { - b.Log.Debugf("== Receiving event %#v", msg.Data) - } - switch ev := msg.Data.(type) { - case *slack.MessageEvent: - if b.skipMessageEvent(ev) { - b.Log.Debugf("Skipped message: %#v", ev) - continue - } - rmsg, err := b.handleMessageEvent(ev) - if err != nil { - b.Log.Errorf("%#v", err) - continue - } - messages <- rmsg - case *slack.OutgoingErrorEvent: - b.Log.Debugf("%#v", ev.Error()) - case *slack.ChannelJoinedEvent: - b.Users, _ = b.sc.GetUsers() - b.Usergroups, _ = b.sc.GetUserGroups() - 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, _ = b.sc.GetUsers() - b.Usergroups, _ = b.sc.GetUserGroups() - case *slack.InvalidAuthEvent: - b.Log.Fatalf("Invalid Token %#v", ev) - case *slack.ConnectionErrorEvent: - b.Log.Errorf("Connection failed %#v %#v", ev.Error(), ev.ErrorObj) - default: - } - } -} - -func (b *Bslack) handleMatterHook(messages chan *config.Message) { - for { - message := b.mh.Receive() - b.Log.Debugf("receiving from matterhook (slack) %#v", message) - if message.UserName == "slackbot" { - continue - } - messages <- &config.Message{Username: message.UserName, Text: message.Text, Channel: message.ChannelName} - } -} - -func (b *Bslack) userName(id string) string { - for _, u := range b.Users { - if u.ID == id { - if u.Profile.DisplayName != "" { - return u.Profile.DisplayName - } - return u.Name - } - } - return "" -} - -/* -func (b *Bslack) userGroupName(id string) string { - for _, u := range b.Usergroups { - if u.ID == id { - return u.Name - } - } - return "" -} -*/ - -// @see https://api.slack.com/docs/message-formatting#linking_to_channels_and_users -func (b *Bslack) replaceMention(text string) string { - results := regexp.MustCompile(`<@([a-zA-Z0-9]+)>`).FindAllStringSubmatch(text, -1) - for _, r := range results { - text = strings.Replace(text, "<@"+r[1]+">", "@"+b.userName(r[1]), -1) - } - return text -} - -// @see https://api.slack.com/docs/message-formatting#linking_to_channels_and_users -func (b *Bslack) replaceChannel(text string) string { - results := regexp.MustCompile(`<#[a-zA-Z0-9]+\|(.+?)>`).FindAllStringSubmatch(text, -1) - for _, r := range results { - text = strings.Replace(text, r[0], "#"+r[1], -1) - } - return text -} - -// @see https://api.slack.com/docs/message-formatting#variables -func (b *Bslack) replaceVariable(text string) string { - results := regexp.MustCompile(`<!((?:subteam\^)?[a-zA-Z0-9]+)(?:\|@?(.+?))?>`).FindAllStringSubmatch(text, -1) - for _, r := range results { - if r[2] != "" { - text = strings.Replace(text, r[0], "@"+r[2], -1) - } else { - text = strings.Replace(text, r[0], "@"+r[1], -1) - } - } - return text -} - -// @see https://api.slack.com/docs/message-formatting#linking_to_urls -func (b *Bslack) replaceURL(text string) string { - results := regexp.MustCompile(`<(.*?)(\|.*?)?>`).FindAllStringSubmatch(text, -1) - for _, r := range results { - if len(strings.TrimSpace(r[2])) == 1 { // A display text separator was found, but the text was blank - text = strings.Replace(text, r[0], "", -1) - } else { - text = strings.Replace(text, r[0], r[1], -1) - } - } - return text -} - func (b *Bslack) createAttach(extra map[string][]interface{}) []slack.Attachment { var attachs []slack.Attachment for _, v := range extra["attachments"] { @@ -435,199 +245,6 @@ func (b *Bslack) createAttach(extra map[string][]interface{}) []slack.Attachment return attachs } -// handleDownloadFile handles file download -func (b *Bslack) handleDownloadFile(rmsg *config.Message, file *slack.File) error { - // if we have a file attached, download it (in memory) and put a pointer to it in msg.Extra - // limit to 1MB for now - comment := "" - results := regexp.MustCompile(`.*?commented: (.*)`).FindAllStringSubmatch(rmsg.Text, -1) - if len(results) > 0 { - comment = results[0][1] - } - err := helper.HandleDownloadSize(b.Log, rmsg, file.Name, int64(file.Size), b.General) - if err != nil { - return err - } - // actually download the file - data, err := helper.DownloadFileAuth(file.URLPrivateDownload, "Bearer "+b.GetString("Token")) - if err != nil { - return fmt.Errorf("download %s failed %#v", file.URLPrivateDownload, err) - } - // add the downloaded data to the message - helper.HandleDownloadData(b.Log, rmsg, file.Name, comment, file.URLPrivateDownload, data, b.General) - return nil -} - -// handleUploadFile handles native upload of files -func (b *Bslack) handleUploadFile(msg *config.Message, channelID string) (string, error) { - for _, f := range msg.Extra["file"] { - fi := f.(config.FileInfo) - if msg.Text == fi.Comment { - msg.Text = "" - } - /* because the result of the UploadFile is slower than the MessageEvent from slack - we can't match on the file ID yet, so we have to match on the filename too - */ - b.Log.Debugf("Adding file %s to cache %s", fi.Name, time.Now().String()) - b.cache.Add("filename"+fi.Name, time.Now()) - res, err := b.sc.UploadFile(slack.FileUploadParameters{ - Reader: bytes.NewReader(*fi.Data), - Filename: fi.Name, - Channels: []string{channelID}, - InitialComment: fi.Comment, - }) - if res.ID != "" { - b.Log.Debugf("Adding fileid %s to cache %s", res.ID, time.Now().String()) - b.cache.Add("file"+res.ID, time.Now()) - } - if err != nil { - b.Log.Errorf("uploadfile %#v", err) - } - } - return "", nil -} - -// handleMessageEvent handles the message events -func (b *Bslack) handleMessageEvent(ev *slack.MessageEvent) (*config.Message, error) { - // update the userlist on a channel_join - if ev.SubType == "channel_join" { - b.Users, _ = b.sc.GetUsers() - } - - // Edit message - if !b.GetBool("EditDisable") && ev.SubMessage != nil && ev.SubMessage.ThreadTimestamp != ev.SubMessage.Timestamp { - b.Log.Debugf("SubMessage %#v", ev.SubMessage) - ev.User = ev.SubMessage.User - ev.Text = ev.SubMessage.Text + b.GetString("EditSuffix") - } - - // use our own func because rtm.GetChannelInfo doesn't work for private channels - channel, err := b.getChannelByID(ev.Channel) - if err != nil { - return nil, err - } - - rmsg := config.Message{Text: ev.Text, Channel: channel.Name, Account: b.Account, ID: "slack " + ev.Timestamp, Extra: make(map[string][]interface{})} - - if b.UseChannelID { - rmsg.Channel = "ID:" + channel.ID - } - - // find the user id and name - if ev.User != "" && ev.SubType != messageDeleted && ev.SubType != "file_comment" { - user, err := b.rtm.GetUserInfo(ev.User) - if err != nil { - return nil, err - } - rmsg.UserID = user.ID - rmsg.Username = user.Name - if user.Profile.DisplayName != "" { - rmsg.Username = user.Profile.DisplayName - } - } - - // See if we have some text in the attachments - if rmsg.Text == "" { - for _, attach := range ev.Attachments { - if attach.Text != "" { - if attach.Title != "" { - rmsg.Text = attach.Title + "\n" - } - rmsg.Text += attach.Text - } else { - rmsg.Text = attach.Fallback - } - } - } - - // when using webhookURL we can't check if it's our webhook or not for now - if rmsg.Username == "" && ev.BotID != "" && b.GetString("WebhookURL") == "" { - bot, err := b.rtm.GetBotInfo(ev.BotID) - if err != nil { - return nil, err - } - if bot.Name != "" { - rmsg.Username = bot.Name - if ev.Username != "" { - rmsg.Username = ev.Username - } - rmsg.UserID = bot.ID - } - - // fixes issues with matterircd users - if bot.Name == "Slack API Tester" { - user, err := b.rtm.GetUserInfo(ev.User) - if err != nil { - return nil, err - } - rmsg.UserID = user.ID - rmsg.Username = user.Name - if user.Profile.DisplayName != "" { - rmsg.Username = user.Profile.DisplayName - } - } - } - - // file comments are set by the system (because there is no username given) - if ev.SubType == "file_comment" { - rmsg.Username = "system" - } - - // do we have a /me action - if ev.SubType == "me_message" { - rmsg.Event = config.EVENT_USER_ACTION - } - - // Handle join/leave - if ev.SubType == "channel_leave" || ev.SubType == "channel_join" { - rmsg.Username = "system" - rmsg.Event = config.EVENT_JOIN_LEAVE - } - - // edited messages have a submessage, use this timestamp - if ev.SubMessage != nil { - rmsg.ID = "slack " + ev.SubMessage.Timestamp - } - - // deleted message event - if ev.SubType == messageDeleted { - rmsg.Text = config.EVENT_MSG_DELETE - rmsg.Event = config.EVENT_MSG_DELETE - rmsg.ID = "slack " + ev.DeletedTimestamp - } - - // topic change event - if ev.SubType == "channel_topic" || ev.SubType == "channel_purpose" { - rmsg.Event = config.EVENT_TOPIC_CHANGE - } - - // Only deleted messages can have a empty username and text - if (rmsg.Text == "" || rmsg.Username == "") && ev.SubType != messageDeleted && len(ev.Files) == 0 { - // this is probably a webhook we couldn't resolve - if ev.BotID != "" { - return nil, fmt.Errorf("probably an incoming webhook we couldn't resolve (maybe ourselves)") - } - return nil, fmt.Errorf("empty message and not a deleted message") - } - - // save the attachments, so that we can send them to other slack (compatible) bridges - if len(ev.Attachments) > 0 { - rmsg.Extra["slack_attachment"] = append(rmsg.Extra["slack_attachment"], ev.Attachments) - } - - // if we have a file attached, download it (in memory) and put a pointer to it in msg.Extra - if len(ev.Files) > 0 { - for _, f := range ev.Files { - err := b.handleDownloadFile(&rmsg, &f) - if err != nil { - b.Log.Errorf("download failed: %s", err) - } - } - } - - return &rmsg, nil -} - // sendWebhook uses the configured WebhookURL to send the message func (b *Bslack) sendWebhook(msg config.Message) (string, error) { // skip events @@ -678,67 +295,3 @@ func (b *Bslack) sendWebhook(msg config.Message) (string, error) { } return "", nil } - -// skipMessageEvent skips event that need to be skipped :-) -func (b *Bslack) skipMessageEvent(ev *slack.MessageEvent) bool { - if ev.SubType == "channel_leave" || ev.SubType == "channel_join" { - return b.GetBool("nosendjoinpart") - } - - // ignore pinned items - if ev.SubType == "pinned_item" || ev.SubType == "unpinned_item" { - return true - } - - // do not send messages from ourself - if b.GetString("WebhookURL") == "" && b.GetString("WebhookBindAddress") == "" && ev.Username == b.si.User.Name { - return true - } - - // skip messages we made ourselves - if len(ev.Attachments) > 0 { - if ev.Attachments[0].CallbackID == "matterbridge_"+b.uuid { - return true - } - } - - if !b.GetBool("EditDisable") && ev.SubMessage != nil && ev.SubMessage.ThreadTimestamp != ev.SubMessage.Timestamp { - // it seems ev.SubMessage.Edited == nil when slack unfurls - // do not forward these messages #266 - if ev.SubMessage.Edited == nil { - return true - } - } - - if len(ev.Files) > 0 { - for _, f := range ev.Files { - // if the file is in the cache and isn't older then a minute, skip it - if ts, ok := b.cache.Get("file" + f.ID); ok && time.Since(ts.(time.Time)) < time.Minute { - b.Log.Debugf("Not downloading file id %s which we uploaded", f.ID) - return true - } else { - if ts, ok := b.cache.Get("filename" + f.Name); ok && time.Since(ts.(time.Time)) < time.Second*10 { - b.Log.Debugf("Not downloading file name %s which we uploaded", f.Name) - return true - } else { - b.Log.Debugf("Not skipping %s %s", f.Name, time.Now().String()) - } - } - } - } - - return false -} - -func (b *Bslack) getChannelID(name string) string { - 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 "" -} |