mirror of
https://github.com/cwinfo/matterbridge.git
synced 2024-11-24 23:31:36 +00:00
483 lines
14 KiB
Go
483 lines
14 KiB
Go
package bmattermost
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import (
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"errors"
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"fmt"
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"strings"
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"github.com/42wim/matterbridge/bridge"
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"github.com/42wim/matterbridge/bridge/config"
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"github.com/42wim/matterbridge/bridge/helper"
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"github.com/42wim/matterbridge/matterclient"
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"github.com/42wim/matterbridge/matterhook"
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"github.com/mattermost/platform/model"
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"github.com/rs/xid"
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)
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type Bmattermost struct {
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mh *matterhook.Client
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mc *matterclient.MMClient
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uuid string
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TeamID string
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*bridge.Config
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avatarMap map[string]string
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}
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const mattermostPlugin = "mattermost.plugin"
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func New(cfg *bridge.Config) bridge.Bridger {
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b := &Bmattermost{Config: cfg, avatarMap: make(map[string]string)}
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b.uuid = xid.New().String()
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return b
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}
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func (b *Bmattermost) Command(cmd string) string {
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return ""
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}
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func (b *Bmattermost) Connect() error {
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if b.Account == mattermostPlugin {
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return nil
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}
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if b.GetString("WebhookBindAddress") != "" {
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switch {
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case b.GetString("WebhookURL") != "":
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b.Log.Info("Connecting using webhookurl (sending) and webhookbindaddress (receiving)")
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b.mh = matterhook.New(b.GetString("WebhookURL"),
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matterhook.Config{InsecureSkipVerify: b.GetBool("SkipTLSVerify"),
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BindAddress: b.GetString("WebhookBindAddress")})
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case b.GetString("Token") != "":
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b.Log.Info("Connecting using token (sending)")
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err := b.apiLogin()
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if err != nil {
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return err
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}
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case b.GetString("Login") != "":
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b.Log.Info("Connecting using login/password (sending)")
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err := b.apiLogin()
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if err != nil {
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return err
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}
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default:
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b.Log.Info("Connecting using webhookbindaddress (receiving)")
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b.mh = matterhook.New(b.GetString("WebhookURL"),
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matterhook.Config{InsecureSkipVerify: b.GetBool("SkipTLSVerify"),
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BindAddress: b.GetString("WebhookBindAddress")})
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}
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go b.handleMatter()
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return nil
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}
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switch {
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case b.GetString("WebhookURL") != "":
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b.Log.Info("Connecting using webhookurl (sending)")
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b.mh = matterhook.New(b.GetString("WebhookURL"),
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matterhook.Config{InsecureSkipVerify: b.GetBool("SkipTLSVerify"),
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DisableServer: true})
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if b.GetString("Token") != "" {
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b.Log.Info("Connecting using token (receiving)")
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err := b.apiLogin()
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if err != nil {
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return err
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}
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go b.handleMatter()
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} else if b.GetString("Login") != "" {
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b.Log.Info("Connecting using login/password (receiving)")
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err := b.apiLogin()
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if err != nil {
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return err
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}
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go b.handleMatter()
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}
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return nil
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case b.GetString("Token") != "":
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b.Log.Info("Connecting using token (sending and receiving)")
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err := b.apiLogin()
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if err != nil {
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return err
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}
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go b.handleMatter()
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case b.GetString("Login") != "":
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b.Log.Info("Connecting using login/password (sending and receiving)")
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err := b.apiLogin()
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if err != nil {
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return err
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}
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go b.handleMatter()
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}
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if b.GetString("WebhookBindAddress") == "" && b.GetString("WebhookURL") == "" && b.GetString("Login") == "" && b.GetString("Token") == "" {
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return errors.New("no connection method found. See that you have WebhookBindAddress, WebhookURL or Token/Login/Password/Server/Team configured")
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}
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return nil
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}
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func (b *Bmattermost) Disconnect() error {
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return nil
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}
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func (b *Bmattermost) JoinChannel(channel config.ChannelInfo) error {
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if b.Account == mattermostPlugin {
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return nil
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}
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// we can only join channels using the API
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if b.GetString("WebhookURL") == "" && b.GetString("WebhookBindAddress") == "" {
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id := b.mc.GetChannelId(channel.Name, b.TeamID)
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if id == "" {
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return fmt.Errorf("Could not find channel ID for channel %s", channel.Name)
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}
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return b.mc.JoinChannel(id)
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}
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return nil
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}
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func (b *Bmattermost) Send(msg config.Message) (string, error) {
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if b.Account == mattermostPlugin {
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return "", nil
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}
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b.Log.Debugf("=> Receiving %#v", msg)
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// Make a action /me of the message
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if msg.Event == config.EventUserAction {
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msg.Text = "*" + msg.Text + "*"
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}
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// map the file SHA to our user (caches the avatar)
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if msg.Event == config.EventAvatarDownload {
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return b.cacheAvatar(&msg)
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}
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// Use webhook to send the message
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if b.GetString("WebhookURL") != "" {
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return b.sendWebhook(msg)
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}
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// Delete message
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if msg.Event == config.EventMsgDelete {
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if msg.ID == "" {
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return "", nil
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}
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return msg.ID, b.mc.DeleteMessage(msg.ID)
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}
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// Upload a file if it exists
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if msg.Extra != nil {
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for _, rmsg := range helper.HandleExtra(&msg, b.General) {
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b.mc.PostMessage(b.mc.GetChannelId(rmsg.Channel, b.TeamID), rmsg.Username+rmsg.Text)
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}
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if len(msg.Extra["file"]) > 0 {
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return b.handleUploadFile(&msg)
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}
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}
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// Prepend nick if configured
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if b.GetBool("PrefixMessagesWithNick") {
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msg.Text = msg.Username + msg.Text
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}
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// Edit message if we have an ID
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if msg.ID != "" {
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return b.mc.EditMessage(msg.ID, msg.Text)
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}
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// Post normal message
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return b.mc.PostMessage(b.mc.GetChannelId(msg.Channel, b.TeamID), msg.Text)
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}
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func (b *Bmattermost) handleMatter() {
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messages := make(chan *config.Message)
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if b.GetString("WebhookBindAddress") != "" {
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b.Log.Debugf("Choosing webhooks based receiving")
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go b.handleMatterHook(messages)
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} else {
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if b.GetString("Token") != "" {
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b.Log.Debugf("Choosing token based receiving")
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} else {
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b.Log.Debugf("Choosing login/password based receiving")
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}
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go b.handleMatterClient(messages)
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}
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var ok bool
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for message := range messages {
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message.Avatar = helper.GetAvatar(b.avatarMap, message.UserID, b.General)
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message.Account = b.Account
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message.Text, ok = b.replaceAction(message.Text)
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if ok {
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message.Event = config.EventUserAction
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}
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b.Log.Debugf("<= Sending message from %s on %s to gateway", message.Username, b.Account)
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b.Log.Debugf("<= Message is %#v", message)
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b.Remote <- *message
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}
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}
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func (b *Bmattermost) handleMatterClient(messages chan *config.Message) {
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for message := range b.mc.MessageChan {
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b.Log.Debugf("%#v", message.Raw.Data)
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if b.skipMessage(message) {
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b.Log.Debugf("Skipped message: %#v", message)
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continue
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}
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// only download avatars if we have a place to upload them (configured mediaserver)
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if b.General.MediaServerUpload != "" || b.General.MediaDownloadPath != "" {
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b.handleDownloadAvatar(message.UserID, message.Channel)
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}
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b.Log.Debugf("== Receiving event %#v", message)
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rmsg := &config.Message{Username: message.Username, UserID: message.UserID, Channel: message.Channel, Text: message.Text, ID: message.Post.Id, Extra: make(map[string][]interface{})}
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// handle mattermost post properties (override username and attachments)
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props := message.Post.Props
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if props != nil {
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if _, ok := props["override_username"].(string); ok {
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rmsg.Username = props["override_username"].(string)
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}
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if _, ok := props["attachments"].([]interface{}); ok {
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rmsg.Extra["attachments"] = props["attachments"].([]interface{})
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if rmsg.Text == "" {
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for _, attachment := range rmsg.Extra["attachments"] {
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attach := attachment.(map[string]interface{})
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if attach["text"].(string) != "" {
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rmsg.Text += attach["text"].(string)
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continue
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}
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if attach["fallback"].(string) != "" {
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rmsg.Text += attach["fallback"].(string)
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}
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}
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}
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}
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}
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// create a text for bridges that don't support native editing
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if message.Raw.Event == model.WEBSOCKET_EVENT_POST_EDITED && !b.GetBool("EditDisable") {
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rmsg.Text = message.Text + b.GetString("EditSuffix")
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}
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if message.Raw.Event == model.WEBSOCKET_EVENT_POST_DELETED {
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rmsg.Event = config.EventMsgDelete
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}
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if len(message.Post.FileIds) > 0 {
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for _, id := range message.Post.FileIds {
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err := b.handleDownloadFile(rmsg, id)
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if err != nil {
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b.Log.Errorf("download failed: %s", err)
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}
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}
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}
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// Use nickname instead of username if defined
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if nick := b.mc.GetNickName(rmsg.UserID); nick != "" {
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rmsg.Username = nick
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}
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messages <- rmsg
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}
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}
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func (b *Bmattermost) handleMatterHook(messages chan *config.Message) {
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for {
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message := b.mh.Receive()
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b.Log.Debugf("Receiving from matterhook %#v", message)
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messages <- &config.Message{UserID: message.UserID, Username: message.UserName, Text: message.Text, Channel: message.ChannelName}
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}
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}
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func (b *Bmattermost) apiLogin() error {
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password := b.GetString("Password")
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if b.GetString("Token") != "" {
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password = "token=" + b.GetString("Token")
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}
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b.mc = matterclient.New(b.GetString("Login"), password, b.GetString("Team"), b.GetString("Server"))
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if b.GetBool("debug") {
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b.mc.SetLogLevel("debug")
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}
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b.mc.SkipTLSVerify = b.GetBool("SkipTLSVerify")
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b.mc.NoTLS = b.GetBool("NoTLS")
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b.Log.Infof("Connecting %s (team: %s) on %s", b.GetString("Login"), b.GetString("Team"), b.GetString("Server"))
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err := b.mc.Login()
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if err != nil {
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return err
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}
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b.Log.Info("Connection succeeded")
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b.TeamID = b.mc.GetTeamId()
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go b.mc.WsReceiver()
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go b.mc.StatusLoop()
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return nil
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}
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// replaceAction replace the message with the correct action (/me) code
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func (b *Bmattermost) replaceAction(text string) (string, bool) {
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if strings.HasPrefix(text, "*") && strings.HasSuffix(text, "*") {
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return strings.Replace(text, "*", "", -1), true
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}
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return text, false
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}
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func (b *Bmattermost) cacheAvatar(msg *config.Message) (string, error) {
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fi := msg.Extra["file"][0].(config.FileInfo)
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/* if we have a sha we have successfully uploaded the file to the media server,
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so we can now cache the sha */
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if fi.SHA != "" {
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b.Log.Debugf("Added %s to %s in avatarMap", fi.SHA, msg.UserID)
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b.avatarMap[msg.UserID] = fi.SHA
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}
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return "", nil
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}
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// handleDownloadAvatar downloads the avatar of userid from channel
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// sends a EVENT_AVATAR_DOWNLOAD message to the gateway if successful.
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// logs an error message if it fails
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func (b *Bmattermost) handleDownloadAvatar(userid string, channel string) {
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rmsg := config.Message{Username: "system", Text: "avatar", Channel: channel, Account: b.Account, UserID: userid, Event: config.EventAvatarDownload, Extra: make(map[string][]interface{})}
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if _, ok := b.avatarMap[userid]; !ok {
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data, resp := b.mc.Client.GetProfileImage(userid, "")
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if resp.Error != nil {
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b.Log.Errorf("ProfileImage download failed for %#v %s", userid, resp.Error)
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return
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}
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err := helper.HandleDownloadSize(b.Log, &rmsg, userid+".png", int64(len(data)), b.General)
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if err != nil {
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b.Log.Error(err)
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return
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}
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helper.HandleDownloadData(b.Log, &rmsg, userid+".png", rmsg.Text, "", &data, b.General)
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b.Remote <- rmsg
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}
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}
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// handleDownloadFile handles file download
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func (b *Bmattermost) handleDownloadFile(rmsg *config.Message, id string) error {
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url, _ := b.mc.Client.GetFileLink(id)
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finfo, resp := b.mc.Client.GetFileInfo(id)
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if resp.Error != nil {
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return resp.Error
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}
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err := helper.HandleDownloadSize(b.Log, rmsg, finfo.Name, finfo.Size, b.General)
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if err != nil {
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return err
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}
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data, resp := b.mc.Client.DownloadFile(id, true)
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if resp.Error != nil {
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return resp.Error
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}
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helper.HandleDownloadData(b.Log, rmsg, finfo.Name, rmsg.Text, url, &data, b.General)
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return nil
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}
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// handleUploadFile handles native upload of files
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func (b *Bmattermost) handleUploadFile(msg *config.Message) (string, error) {
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var err error
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var res, id string
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channelID := b.mc.GetChannelId(msg.Channel, b.TeamID)
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for _, f := range msg.Extra["file"] {
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fi := f.(config.FileInfo)
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id, err = b.mc.UploadFile(*fi.Data, channelID, fi.Name)
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if err != nil {
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return "", err
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}
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msg.Text = fi.Comment
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if b.GetBool("PrefixMessagesWithNick") {
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msg.Text = msg.Username + msg.Text
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}
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res, err = b.mc.PostMessageWithFiles(channelID, msg.Text, []string{id})
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}
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return res, err
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}
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// sendWebhook uses the configured WebhookURL to send the message
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func (b *Bmattermost) sendWebhook(msg config.Message) (string, error) {
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// skip events
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if msg.Event != "" {
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return "", nil
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}
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if b.GetBool("PrefixMessagesWithNick") {
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msg.Text = msg.Username + msg.Text
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}
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if msg.Extra != nil {
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// this sends a message only if we received a config.EVENT_FILE_FAILURE_SIZE
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for _, rmsg := range helper.HandleExtra(&msg, b.General) {
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rmsg := rmsg // scopelint
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iconURL := config.GetIconURL(&rmsg, b.GetString("iconurl"))
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matterMessage := matterhook.OMessage{IconURL: iconURL, Channel: rmsg.Channel, UserName: rmsg.Username, Text: rmsg.Text, Props: make(map[string]interface{})}
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matterMessage.Props["matterbridge_"+b.uuid] = true
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b.mh.Send(matterMessage)
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}
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// webhook doesn't support file uploads, so we add the url manually
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if len(msg.Extra["file"]) > 0 {
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for _, f := range msg.Extra["file"] {
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fi := f.(config.FileInfo)
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if fi.URL != "" {
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msg.Text += fi.URL
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}
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}
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}
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}
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iconURL := config.GetIconURL(&msg, b.GetString("iconurl"))
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matterMessage := matterhook.OMessage{IconURL: iconURL, Channel: msg.Channel, UserName: msg.Username, Text: msg.Text, Props: make(map[string]interface{})}
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if msg.Avatar != "" {
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matterMessage.IconURL = msg.Avatar
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}
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matterMessage.Props["matterbridge_"+b.uuid] = true
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err := b.mh.Send(matterMessage)
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if err != nil {
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b.Log.Info(err)
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return "", err
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}
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return "", nil
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}
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// skipMessages returns true if this message should not be handled
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func (b *Bmattermost) skipMessage(message *matterclient.Message) bool {
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// Handle join/leave
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if message.Type == "system_join_leave" ||
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message.Type == "system_join_channel" ||
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message.Type == "system_leave_channel" {
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if b.GetBool("nosendjoinpart") {
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return true
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}
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b.Log.Debugf("Sending JOIN_LEAVE event from %s to gateway", b.Account)
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b.Remote <- config.Message{Username: "system", Text: message.Text, Channel: message.Channel, Account: b.Account, Event: config.EventJoinLeave}
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return true
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}
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// Handle edited messages
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if (message.Raw.Event == model.WEBSOCKET_EVENT_POST_EDITED) && b.GetBool("EditDisable") {
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return true
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}
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// Ignore messages sent from matterbridge
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if message.Post.Props != nil {
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if _, ok := message.Post.Props["matterbridge_"+b.uuid].(bool); ok {
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b.Log.Debugf("sent by matterbridge, ignoring")
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return true
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}
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}
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// Ignore messages sent from a user logged in as the bot
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if b.mc.User.Username == message.Username {
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return true
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}
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// if the message has reactions don't repost it (for now, until we can correlate reaction with message)
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if message.Post.HasReactions {
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return true
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}
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// ignore messages from other teams than ours
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if message.Raw.Data["team_id"].(string) != b.TeamID {
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return true
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}
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// only handle posted, edited or deleted events
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if !(message.Raw.Event == "posted" || message.Raw.Event == model.WEBSOCKET_EVENT_POST_EDITED || message.Raw.Event == model.WEBSOCKET_EVENT_POST_DELETED) {
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return true
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}
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return false
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}
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