From 3e865708d6dc51290d6431efd21d4f9a3e9dfee7 Mon Sep 17 00:00:00 2001 From: Wim Date: Fri, 27 Nov 2020 00:34:44 +0100 Subject: Refactor/cleanup code (whatsapp) --- bridge/whatsapp/handlers.go | 26 +++++++--- bridge/whatsapp/helpers.go | 53 ++++++++++++++++---- bridge/whatsapp/whatsapp.go | 119 ++++++++++++++------------------------------ 3 files changed, 97 insertions(+), 101 deletions(-) diff --git a/bridge/whatsapp/handlers.go b/bridge/whatsapp/handlers.go index 4d1c9a13..8b25c146 100644 --- a/bridge/whatsapp/handlers.go +++ b/bridge/whatsapp/handlers.go @@ -24,7 +24,8 @@ Check: func (b *Bwhatsapp) HandleError(err error) { // ignore received invalid data errors. https://github.com/42wim/matterbridge/issues/843 // ignore tag 174 errors. https://github.com/42wim/matterbridge/issues/1094 - if strings.Contains(err.Error(), "error processing data: received invalid data") || strings.Contains(err.Error(), "invalid string with tag 174") { + if strings.Contains(err.Error(), "error processing data: received invalid data") || + strings.Contains(err.Error(), "invalid string with tag 174") { return } @@ -47,16 +48,22 @@ func (b *Bwhatsapp) reconnect(err error) { Max: 5 * time.Minute, Jitter: true, } + for { d := bf.Duration() + b.Log.Errorf("Connection failed, underlying error: %v", err) b.Log.Infof("Waiting %s...", d) + time.Sleep(d) + b.Log.Info("Reconnecting...") + err := b.conn.Restore() if err == nil { bf.Reset() b.startedAt = uint64(time.Now().Unix()) + return } } @@ -64,7 +71,7 @@ func (b *Bwhatsapp) reconnect(err error) { // HandleTextMessage sent from WhatsApp, relay it to the brige func (b *Bwhatsapp) HandleTextMessage(message whatsapp.TextMessage) { - if message.Info.FromMe { // || !strings.Contains(strings.ToLower(message.Text), "@echo") { + if message.Info.FromMe { return } // whatsapp sends last messages to show context , cut them @@ -101,11 +108,13 @@ func (b *Bwhatsapp) HandleTextMessage(message whatsapp.TextMessage) { if mention == "" { mention = "someone" } + message.Text = strings.Replace(message.Text, "@"+numberAndSuffix[0], "@"+mention, 1) } } b.Log.Debugf("<= Sending message from %s on %s to gateway", senderJID, b.Account) + rmsg := config.Message{ UserID: senderJID, Username: senderName, @@ -116,15 +125,15 @@ func (b *Bwhatsapp) HandleTextMessage(message whatsapp.TextMessage) { Protocol: b.Protocol, Extra: make(map[string][]interface{}), // ParentID: TODO, // TODO handle thread replies // map from Info.QuotedMessageID string - // Event string `json:"event"` - // Gateway string // will be added during message processing - ID: message.Info.Id} + ID: message.Info.Id, + } if avatarURL, exists := b.userAvatars[senderJID]; exists { rmsg.Avatar = avatarURL } b.Log.Debugf("<= Message is %#v", rmsg) + b.Remote <- rmsg } @@ -157,6 +166,7 @@ func (b *Bwhatsapp) HandleImageMessage(message whatsapp.ImageMessage) { } b.Log.Debugf("<= Sending message from %s on %s to gateway", senderJID, b.Account) + rmsg := config.Message{ UserID: senderJID, Username: senderName, @@ -166,9 +176,8 @@ func (b *Bwhatsapp) HandleImageMessage(message whatsapp.ImageMessage) { Protocol: b.Protocol, Extra: make(map[string][]interface{}), // ParentID: TODO, // TODO handle thread replies // map from Info.QuotedMessageID string - // Event string `json:"event"` - // Gateway string // will be added during message processing - ID: message.Info.Id} + ID: message.Info.Id, + } if avatarURL, exists := b.userAvatars[senderJID]; exists { rmsg.Avatar = avatarURL @@ -196,6 +205,7 @@ func (b *Bwhatsapp) HandleImageMessage(message whatsapp.ImageMessage) { helper.HandleDownloadData(b.Log, &rmsg, filename, message.Caption, "", &data, b.General) b.Log.Debugf("<= Image Message is %#v", rmsg) + b.Remote <- rmsg } diff --git a/bridge/whatsapp/helpers.go b/bridge/whatsapp/helpers.go index aa5f3188..e424387d 100644 --- a/bridge/whatsapp/helpers.go +++ b/bridge/whatsapp/helpers.go @@ -6,22 +6,24 @@ import ( "errors" "fmt" "os" + "strings" qrcodeTerminal "github.com/Baozisoftware/qrcode-terminal-go" "github.com/Rhymen/go-whatsapp" ) type ProfilePicInfo struct { - URL string `json:"eurl"` - Tag string `json:"tag"` - - Status int16 `json:"status"` + URL string `json:"eurl"` + Tag string `json:"tag"` + Status int16 `json:"status"` } func qrFromTerminal(invert bool) chan string { qr := make(chan string) + go func() { terminal := qrcodeTerminal.New() + if invert { terminal = qrcodeTerminal.New2(qrcodeTerminal.ConsoleColors.BrightWhite, qrcodeTerminal.ConsoleColors.BrightBlack, qrcodeTerminal.QRCodeRecoveryLevels.Medium) } @@ -44,13 +46,12 @@ func (b *Bwhatsapp) readSession() (whatsapp.Session, error) { if err != nil { return session, err } + defer file.Close() + decoder := gob.NewDecoder(file) - err = decoder.Decode(&session) - if err != nil { - return session, err - } - return session, nil + + return session, decoder.Decode(&session) } func (b *Bwhatsapp) writeSession(session whatsapp.Session) error { @@ -65,11 +66,31 @@ func (b *Bwhatsapp) writeSession(session whatsapp.Session) error { if err != nil { return err } + defer file.Close() + encoder := gob.NewEncoder(file) - err = encoder.Encode(session) - return err + return encoder.Encode(session) +} + +func (b *Bwhatsapp) restoreSession() (*whatsapp.Session, error) { + session, err := b.readSession() + if err != nil { + b.Log.Warn(err.Error()) + } + + b.Log.Debugln("Restoring WhatsApp session..") + + session, err = b.conn.RestoreWithSession(session) + if err != nil { + // restore session connection timed out (I couldn't get over it without logging in again) + return nil, errors.New("failed to restore session: " + err.Error()) + } + + b.Log.Debugln("Session restored successfully!") + + return &session, nil } func (b *Bwhatsapp) getSenderName(senderJid string) string { @@ -114,6 +135,7 @@ func (b *Bwhatsapp) getSenderNotify(senderJid string) string { if sender, exists := b.users[senderJid]; exists { return sender.Notify } + return "" } @@ -122,11 +144,20 @@ func (b *Bwhatsapp) GetProfilePicThumb(jid string) (*ProfilePicInfo, error) { if err != nil { return nil, fmt.Errorf("failed to get avatar: %v", err) } + content := <-data info := &ProfilePicInfo{} + err = json.Unmarshal([]byte(content), info) if err != nil { return info, fmt.Errorf("failed to unmarshal avatar info: %v", err) } + return info, nil } + +func isGroupJid(identifier string) bool { + return strings.HasSuffix(identifier, "@g.us") || + strings.HasSuffix(identifier, "@temp") || + strings.HasSuffix(identifier, "@broadcast") +} diff --git a/bridge/whatsapp/whatsapp.go b/bridge/whatsapp/whatsapp.go index ae634d6a..8c2c9cfe 100644 --- a/bridge/whatsapp/whatsapp.go +++ b/bridge/whatsapp/whatsapp.go @@ -28,7 +28,6 @@ const ( type Bwhatsapp struct { *bridge.Config - // https://github.com/Rhymen/go-whatsapp/blob/c31092027237441cffba1b9cb148eadf7c83c3d2/session.go#L18-L21 session *whatsapp.Session conn *whatsapp.Conn startedAt uint64 @@ -40,6 +39,7 @@ type Bwhatsapp struct { // New Create a new WhatsApp bridge. This will be called for each [whatsapp.] entry you have in the config file func New(cfg *bridge.Config) bridge.Bridger { number := cfg.GetString(cfgNumber) + if number == "" { cfg.Log.Fatalf("Missing configuration for WhatsApp bridge: Number") } @@ -50,21 +50,17 @@ func New(cfg *bridge.Config) bridge.Bridger { users: make(map[string]whatsapp.Contact), userAvatars: make(map[string]string), } + return b } // Connect to WhatsApp. Required implementation of the Bridger interface -// https://github.com/42wim/matterbridge/blob/2cfd880cdb0df29771bf8f31df8d990ab897889d/bridge/bridge.go#L11-L16 func (b *Bwhatsapp) Connect() error { - b.RLock() // TODO do we need locking for Whatsapp? - defer b.RUnlock() - number := b.GetString(cfgNumber) if number == "" { - return errors.New("WhatsApp's telephone Number need to be configured") + return errors.New("whatsapp's telephone number need to be configured") } - // https://github.com/Rhymen/go-whatsapp#creating-a-connection b.Log.Debugln("Connecting to WhatsApp..") conn, err := whatsapp.NewConn(20 * time.Second) if err != nil { @@ -77,35 +73,18 @@ func (b *Bwhatsapp) Connect() error { b.Log.Debugln("WhatsApp connection successful") // load existing session in order to keep it between restarts - if b.session == nil { - var session whatsapp.Session - session, err = b.readSession() - - if err == nil { - b.Log.Debugln("Restoring WhatsApp session..") - - // https://github.com/Rhymen/go-whatsapp#restore - session, err = b.conn.RestoreWithSession(session) - if err != nil { - // TODO return or continue to normal login? - // restore session connection timed out (I couldn't get over it without logging in again) - return errors.New("failed to restore session: " + err.Error()) - } - - b.session = &session - b.Log.Debugln("Session restored successfully!") - } else { - b.Log.Warn(err.Error()) - } + b.session, err = b.restoreSession() + if err != nil { + b.Log.Warn(err.Error()) } // login to a new session if b.session == nil { - err = b.Login() - if err != nil { + if err = b.Login(); err != nil { return err } } + b.startedAt = uint64(time.Now().Unix()) _, err = b.conn.Contacts() @@ -116,6 +95,7 @@ func (b *Bwhatsapp) Connect() error { // see https://github.com/Rhymen/go-whatsapp/issues/137#issuecomment-480316013 for len(b.conn.Store.Contacts) == 0 { b.conn.Contacts() // nolint:errcheck + <-time.After(1 * time.Second) } @@ -135,12 +115,13 @@ func (b *Bwhatsapp) Connect() error { info, err := b.GetProfilePicThumb(jid) if err != nil { b.Log.Warnf("Could not get profile photo of %s: %v", jid, err) - } else { - // TODO any race conditions here? + b.Lock() b.userAvatars[jid] = info.URL + b.Unlock() } } + b.Log.Debug("Finished getting avatars..") }() @@ -157,8 +138,10 @@ func (b *Bwhatsapp) Login() error { session, err := b.conn.Login(qrChan) if err != nil { b.Log.Warnln("Failed to log in:", err) + return err } + b.session = &session b.Log.Infof("Logged into session: %#v", session) @@ -169,29 +152,17 @@ func (b *Bwhatsapp) Login() error { fmt.Fprintf(os.Stderr, "error saving session: %v\n", err) } - // TODO change connection strings to configured ones longClientName:"github.com/rhymen/go-whatsapp", shortClientName:"go-whatsapp"}" prefix=whatsapp - // TODO get also a nice logo - - // TODO notification about unplugged and dead battery - // conn.Info: Wid, Pushname, Connected, Battery, Plugged - return nil } // Disconnect is called while reconnecting to the bridge -// TODO 42wim Documentation would be helpful on when reconnects happen and what should be done in this function // Required implementation of the Bridger interface -// https://github.com/42wim/matterbridge/blob/2cfd880cdb0df29771bf8f31df8d990ab897889d/bridge/bridge.go#L11-L16 func (b *Bwhatsapp) Disconnect() error { // We could Logout, but that would close the session completely and would require a new QR code scan // https://github.com/Rhymen/go-whatsapp/blob/c31092027237441cffba1b9cb148eadf7c83c3d2/session.go#L377-L381 return nil } -func isGroupJid(identifier string) bool { - return strings.HasSuffix(identifier, "@g.us") || strings.HasSuffix(identifier, "@temp") || strings.HasSuffix(identifier, "@broadcast") -} - // JoinChannel Join a WhatsApp group specified in gateway config as channel='number-id@g.us' or channel='Channel name' // Required implementation of the Bridger interface // https://github.com/42wim/matterbridge/blob/2cfd880cdb0df29771bf8f31df8d990ab897889d/bridge/bridge.go#L11-L16 @@ -210,39 +181,33 @@ func (b *Bwhatsapp) JoinChannel(channel config.ChannelInfo) error { if _, exists := b.conn.Store.Contacts[channel.Name]; !exists { return fmt.Errorf("account doesn't belong to group with jid %s", channel.Name) } - } else { - // channel.Name specifies group name that might change, warn about it - var jids []string - for id, contact := range b.conn.Store.Contacts { - if isGroupJid(id) && contact.Name == channel.Name { - jids = append(jids, id) - } - } - switch len(jids) { - case 0: - // didn't match any group - print out possibilites - // TODO sort - // copy b; - //sort.Slice(people, func(i, j int) bool { - // return people[i].Age > people[j].Age - //}) - for id, contact := range b.conn.Store.Contacts { - if isGroupJid(id) { - b.Log.Infof("%s %s", contact.Jid, contact.Name) - } - } - return fmt.Errorf("please specify group's JID from the list above instead of the name '%s'", channel.Name) - - case 1: - return fmt.Errorf("group name might change. Please configure gateway with channel=\"%v\" instead of channel=\"%v\"", jids[0], channel.Name) + return nil + } - default: - return fmt.Errorf("there is more than one group with name '%s'. Please specify one of JIDs as channel name: %v", channel.Name, jids) + // channel.Name specifies group name that might change, warn about it + var jids []string + for id, contact := range b.conn.Store.Contacts { + if isGroupJid(id) && contact.Name == channel.Name { + jids = append(jids, id) } } - return nil + switch len(jids) { + case 0: + // didn't match any group - print out possibilites + for id, contact := range b.conn.Store.Contacts { + if isGroupJid(id) { + b.Log.Infof("%s %s", contact.Jid, contact.Name) + } + } + + return fmt.Errorf("please specify group's JID from the list above instead of the name '%s'", channel.Name) + case 1: + return fmt.Errorf("group name might change. Please configure gateway with channel=\"%v\" instead of channel=\"%v\"", jids[0], channel.Name) + default: + return fmt.Errorf("there is more than one group with name '%s'. Please specify one of JIDs as channel name: %v", channel.Name, jids) + } } // Post a document message from the bridge to WhatsApp @@ -331,7 +296,6 @@ func (b *Bwhatsapp) Send(msg config.Message) (string, error) { b.Log.Debugf("updating message with id %s", msg.ID) msg.Text += " (edited)" - // TODO handle edit as a message reply with updated text } // Handle Upload a file @@ -361,16 +325,7 @@ func (b *Bwhatsapp) Send(msg config.Message) (string, error) { b.Log.Debugf("=> Sending %#v", msg) - // create message ID - // TODO follow and act if https://github.com/Rhymen/go-whatsapp/issues/101 implemented - idBytes := make([]byte, 10) - if _, err := rand.Read(idBytes); err != nil { - b.Log.Warn(err.Error()) - } - message.Info.Id = strings.ToUpper(hex.EncodeToString(idBytes)) - _, err := b.conn.Send(message) - - return message.Info.Id, err + return b.conn.Send(message) } // TODO do we want that? to allow login with QR code from a bridged channel? https://github.com/tulir/mautrix-whatsapp/blob/513eb18e2d59bada0dd515ee1abaaf38a3bfe3d5/commands.go#L76 -- cgit v1.2.3