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Refactor/cleanup code (whatsapp)

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This commit is contained in:
Wim 2020-11-27 00:34:44 +01:00
parent c3bcbd63c0
commit 3e865708d6
3 changed files with 99 additions and 103 deletions
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26
bridge/whatsapp/handlers.go
View File

@ -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
}

57
bridge/whatsapp/helpers.go
View File

@ -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
defer file.Close()
encoder := gob.NewEncoder(file)
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")
}

119
bridge/whatsapp/whatsapp.go
View File

@ -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.<server>] 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)
return nil
}
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)
// 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