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// Copyright (c) 2021 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package whatsmeow
import (
"sync/atomic"
"time"
waBinary "go.mau.fi/whatsmeow/binary"
"go.mau.fi/whatsmeow/store"
"go.mau.fi/whatsmeow/types"
"go.mau.fi/whatsmeow/types/events"
)
func (cli *Client) handleStreamError(node *waBinary.Node) {
atomic.StoreUint32(&cli.isLoggedIn, 0)
cli.clearResponseWaiters(node)
code, _ := node.Attrs["code"].(string)
conflict, _ := node.GetOptionalChildByTag("conflict")
conflictType := conflict.AttrGetter().OptionalString("type")
switch {
case code == "515":
cli.Log.Infof("Got 515 code, reconnecting...")
go func() {
cli.Disconnect()
err := cli.Connect()
if err != nil {
cli.Log.Errorf("Failed to reconnect after 515 code:", err)
}
}()
case code == "401" && conflictType == "device_removed":
cli.expectDisconnect()
cli.Log.Infof("Got device removed stream error, sending LoggedOut event and deleting session")
go cli.dispatchEvent(&events.LoggedOut{OnConnect: false, Reason: events.ConnectFailureLoggedOut})
err := cli.Store.Delete()
if err != nil {
cli.Log.Warnf("Failed to delete store after device_removed error: %v", err)
}
case conflictType == "replaced":
cli.expectDisconnect()
cli.Log.Infof("Got replaced stream error, sending StreamReplaced event")
go cli.dispatchEvent(&events.StreamReplaced{})
case code == "503":
// This seems to happen when the server wants to restart or something.
// The disconnection will be emitted as an events.Disconnected and then the auto-reconnect will do its thing.
cli.Log.Warnf("Got 503 stream error, assuming automatic reconnect will handle it")
default:
cli.Log.Errorf("Unknown stream error: %s", node.XMLString())
go cli.dispatchEvent(&events.StreamError{Code: code, Raw: node})
}
}
func (cli *Client) handleIB(node *waBinary.Node) {
children := node.GetChildren()
for _, child := range children {
ag := child.AttrGetter()
switch child.Tag {
case "downgrade_webclient":
go cli.dispatchEvent(&events.QRScannedWithoutMultidevice{})
case "offline_preview":
cli.dispatchEvent(&events.OfflineSyncPreview{
Total: ag.Int("count"),
AppDataChanges: ag.Int("appdata"),
Messages: ag.Int("message"),
Notifications: ag.Int("notification"),
Receipts: ag.Int("receipt"),
})
case "offline":
cli.dispatchEvent(&events.OfflineSyncCompleted{
Count: ag.Int("count"),
})
}
}
}
func (cli *Client) handleConnectFailure(node *waBinary.Node) {
ag := node.AttrGetter()
reason := events.ConnectFailureReason(ag.Int("reason"))
message := ag.OptionalString("message")
willAutoReconnect := true
switch {
default:
// By default, expect a disconnect (i.e. prevent auto-reconnect)
cli.expectDisconnect()
willAutoReconnect = false
case reason == events.ConnectFailureServiceUnavailable:
// Auto-reconnect for 503s
case reason == 500 && message == "biz vname fetch error":
// These happen for business accounts randomly, also auto-reconnect
}
if reason.IsLoggedOut() {
cli.Log.Infof("Got %s connect failure, sending LoggedOut event and deleting session", reason)
go cli.dispatchEvent(&events.LoggedOut{OnConnect: true, Reason: reason})
err := cli.Store.Delete()
if err != nil {
cli.Log.Warnf("Failed to delete store after %d failure: %v", int(reason), err)
}
} else if reason == events.ConnectFailureTempBanned {
cli.Log.Warnf("Temporary ban connect failure: %s", node.XMLString())
go cli.dispatchEvent(&events.TemporaryBan{
Code: events.TempBanReason(ag.Int("code")),
Expire: time.Duration(ag.Int("expire")) * time.Second,
})
} else if reason == events.ConnectFailureClientOutdated {
cli.Log.Errorf("Client outdated (405) connect failure (client version: %s)", store.GetWAVersion().String())
go cli.dispatchEvent(&events.ClientOutdated{})
} else if willAutoReconnect {
cli.Log.Warnf("Got %d/%s connect failure, assuming automatic reconnect will handle it", int(reason), message)
} else {
cli.Log.Warnf("Unknown connect failure: %s", node.XMLString())
go cli.dispatchEvent(&events.ConnectFailure{Reason: reason, Message: message, Raw: node})
}
}
func (cli *Client) handleConnectSuccess(node *waBinary.Node) {
cli.Log.Infof("Successfully authenticated")
cli.LastSuccessfulConnect = time.Now()
cli.AutoReconnectErrors = 0
atomic.StoreUint32(&cli.isLoggedIn, 1)
go func() {
if dbCount, err := cli.Store.PreKeys.UploadedPreKeyCount(); err != nil {
cli.Log.Errorf("Failed to get number of prekeys in database: %v", err)
} else if serverCount, err := cli.getServerPreKeyCount(); err != nil {
cli.Log.Warnf("Failed to get number of prekeys on server: %v", err)
} else {
cli.Log.Debugf("Database has %d prekeys, server says we have %d", dbCount, serverCount)
if serverCount < MinPreKeyCount || dbCount < MinPreKeyCount {
cli.uploadPreKeys()
sc, _ := cli.getServerPreKeyCount()
cli.Log.Debugf("Prekey count after upload: %d", sc)
}
}
err := cli.SetPassive(false)
if err != nil {
cli.Log.Warnf("Failed to send post-connect passive IQ: %v", err)
}
cli.dispatchEvent(&events.Connected{})
cli.closeSocketWaitChan()
}()
}
// SetPassive tells the WhatsApp server whether this device is passive or not.
//
// This seems to mostly affect whether the device receives certain events.
// By default, whatsmeow will automatically do SetPassive(false) after connecting.
func (cli *Client) SetPassive(passive bool) error {
tag := "active"
if passive {
tag = "passive"
}
_, err := cli.sendIQ(infoQuery{
Namespace: "passive",
Type: "set",
To: types.ServerJID,
Content: []waBinary.Node{{Tag: tag}},
})
if err != nil {
return err
}
return nil
}
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