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Retry sending messages if server returns 502

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Tulir Asokan 2020-11-09 18:05:23 +02:00
parent 673f5a8389
commit 05b8d577f3
1 changed files with 41 additions and 1 deletions
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42
portal.go
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@ -1175,7 +1175,35 @@ func (portal *Portal) sendMainIntentMessage(content interface{}) (*mautrix.RespS
return portal.sendMessage(portal.MainIntent(), event.EventMessage, content, 0)
}
const MessageSendRetries = 5
const MediaUploadRetries = 5
const BadGatewaySleep = 5 * time.Second
func (portal *Portal) sendMessage(intent *appservice.IntentAPI, eventType event.Type, content interface{}, timestamp int64) (*mautrix.RespSendEvent, error) {
return portal.sendMessageWithRetry(intent, eventType, content, timestamp, MessageSendRetries)
}
func isGatewayError(err error) bool {
if err == nil {
return false
}
var httpErr mautrix.HTTPError
return errors.As(err, &httpErr) && (httpErr.IsStatus(http.StatusBadGateway) || httpErr.IsStatus(http.StatusGatewayTimeout))
}
func (portal *Portal) sendMessageWithRetry(intent *appservice.IntentAPI, eventType event.Type, content interface{}, timestamp int64, retries int) (*mautrix.RespSendEvent, error) {
for ;;retries-- {
resp, err := portal.sendMessageDirect(intent, eventType, content, timestamp)
if retries > 0 && isGatewayError(err) {
portal.log.Warnfln("Got gateway error trying to send message, retrying in %d seconds", int(BadGatewaySleep.Seconds()))
time.Sleep(BadGatewaySleep)
} else {
return resp, err
}
}
}
func (portal *Portal) sendMessageDirect(intent *appservice.IntentAPI, eventType event.Type, content interface{}, timestamp int64) (*mautrix.RespSendEvent, error) {
wrappedContent := event.Content{Parsed: content}
if timestamp != 0 && intent.IsCustomPuppet {
wrappedContent.Raw = map[string]interface{}{
@ -1430,6 +1458,18 @@ type mediaMessage struct {
sendAsSticker bool
}
func (portal *Portal) uploadWithRetry(intent *appservice.IntentAPI, data []byte, mimeType string, retries int) (*mautrix.RespMediaUpload, error) {
for ;;retries-- {
uploaded, err := intent.UploadBytes(data, mimeType)
if isGatewayError(err) {
portal.log.Warnfln("Got gateway error trying to upload media, retrying in %d seconds", int(BadGatewaySleep.Seconds()))
time.Sleep(BadGatewaySleep)
} else {
return uploaded, err
}
}
}
func (portal *Portal) HandleMediaMessage(source *User, msg mediaMessage) {
intent := portal.startHandling(source, msg.info)
if intent == nil {
@ -1462,7 +1502,7 @@ func (portal *Portal) HandleMediaMessage(source *User, msg mediaMessage) {
data, uploadMimeType, file := portal.encryptFile(data, msg.mimeType)
uploaded, err := intent.UploadBytes(data, uploadMimeType)
uploaded, err := portal.uploadWithRetry(intent, data, uploadMimeType, MediaUploadRetries)
if err != nil {
if errors.Is(err, mautrix.MTooLarge) {
portal.sendMediaBridgeFailure(source, intent, msg.info, errors.New("homeserver rejected too large file"))