//go:generate goannotation $GOFILE
// @rest GET /v1/raw/msgs/:topic/:ver
// tells client how to pub in raw mode: how to connect directly to kafka
func (this *manServer) pubRawHandler(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
ver := params.ByName(UrlParamVersion)
topic := params.ByName(UrlParamTopic)
appid := r.Header.Get(HttpHeaderAppid)
realIp := getHttpRemoteIp(r)
if err := manager.Default.OwnTopic(appid, r.Header.Get(HttpHeaderPubkey), topic); err != nil {
log.Error("pub raw[%s] %s(%s) {topic:%s, ver:%s}: %s",
appid, r.RemoteAddr, realIp, topic, ver, err)
writeAuthFailure(w, err)
return
}
cluster, found := manager.Default.LookupCluster(appid)
if !found {
writeBadRequest(w, "invalid appid")
return
}
log.Info("pub raw[%s] %s(%s) {topic:%s ver:%s}", appid, r.RemoteAddr, realIp, topic, ver)
var out = map[string]string{
"store": store.DefaultPubStore.Name(),
"topic": manager.Default.KafkaTopic(appid, topic, ver),
"brokers": strings.Join(meta.Default.ZkCluster(cluster).OnlyNamedBrokerList(), ","),
}
b, _ := json.Marshal(out)
w.Write(b)
}
// DELETE /v1/jobs/:topic/:ver?id=22323
func (this *pubServer) deleteJobHandler(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
appid := r.Header.Get(HttpHeaderAppid)
topic := params.ByName(UrlParamTopic)
ver := params.ByName(UrlParamVersion)
realIp := getHttpRemoteIp(r)
if err := manager.Default.OwnTopic(appid, r.Header.Get(HttpHeaderPubkey), topic); err != nil {
log.Error("-job[%s] %s(%s) {topic:%s, ver:%s} %s",
appid, r.RemoteAddr, realIp, topic, ver, err)
writeAuthFailure(w, err)
return
}
_, found := manager.Default.LookupCluster(appid)
if !found {
log.Error("-job[%s] %s(%s) {topic:%s, ver:%s} cluster not found",
appid, r.RemoteAddr, realIp, topic, ver)
writeBadRequest(w, "invalid appid")
return
}
jobId := r.URL.Query().Get("id")
if len(jobId) < 18 { // jobId e,g. 341647700585877504
writeBadRequest(w, "invalid job id")
return
}
if err := job.Default.Delete(appid, manager.Default.KafkaTopic(appid, topic, ver), jobId); err != nil {
if err == job.ErrNothingDeleted {
// race failed, actor worker wins
log.Warn("-job[%s] %s(%s) {topic:%s, ver:%s jid:%s} %v",
appid, r.RemoteAddr, realIp, topic, ver, jobId, err)
w.WriteHeader(http.StatusConflict)
w.Write([]byte{})
return
}
log.Error("-job[%s] %s(%s) {topic:%s, ver:%s jid:%s} %v",
appid, r.RemoteAddr, realIp, topic, ver, jobId, err)
writeServerError(w, err.Error())
return
}
if Options.AuditPub {
this.auditor.Trace("-job[%s] %s(%s) {topic:%s ver:%s UA:%s jid:%s}",
appid, r.RemoteAddr, realIp, topic, ver, r.Header.Get("User-Agent"), jobId)
}
w.Write(ResponseOk)
}
// @rest POST /v1/jobs/:appid/:topic/:ver
func (this *manServer) createJobHandler(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
topic := params.ByName(UrlParamTopic)
if !manager.Default.ValidateTopicName(topic) {
log.Warn("illegal topic: %s", topic)
writeBadRequest(w, "illegal topic")
return
}
realIp := getHttpRemoteIp(r)
if !this.throttleAddTopic.Pour(realIp, 1) {
writeQuotaExceeded(w)
return
}
hisAppid := params.ByName(UrlParamAppid)
appid := r.Header.Get(HttpHeaderAppid)
pubkey := r.Header.Get(HttpHeaderPubkey)
ver := params.ByName(UrlParamVersion)
if !manager.Default.AuthAdmin(appid, pubkey) {
log.Warn("suspicous create job %s(%s) {appid:%s pubkey:%s topic:%s ver:%s}",
r.RemoteAddr, realIp, appid, pubkey, topic, ver)
writeAuthFailure(w, manager.ErrAuthenticationFail)
return
}
cluster, found := manager.Default.LookupCluster(hisAppid)
if !found {
log.Error("create job %s(%s) {appid:%s topic:%s ver:%s} invalid appid",
r.RemoteAddr, realIp, hisAppid, topic, ver)
writeBadRequest(w, "invalid appid")
return
}
log.Info("create job[%s] %s(%s) {appid:%s topic:%s ver:%s}",
appid, r.RemoteAddr, realIp, hisAppid, topic, ver)
rawTopic := manager.Default.KafkaTopic(hisAppid, topic, ver)
if err := job.Default.CreateJobQueue(Options.AssignJobShardId, hisAppid, rawTopic); err != nil {
log.Error("create job[%s] %s(%s) {shard:%d appid:%s topic:%s ver:%s} %v",
appid, r.RemoteAddr, realIp, Options.AssignJobShardId, hisAppid, topic, ver, err)
writeServerError(w, err.Error())
return
}
if err := this.gw.zkzone.CreateJobQueue(rawTopic, cluster); err != nil {
log.Error("app[%s] %s(%s) create job: {shard:%d appid:%s topic:%s ver:%s} %v",
appid, r.RemoteAddr, realIp, Options.AssignJobShardId, hisAppid, topic, ver, err)
writeServerError(w, err.Error())
return
}
w.WriteHeader(http.StatusCreated)
w.Write(ResponseOk)
}
//go:generate goannotation $GOFILE
// @rest GET /v1/schema/:appid/:topic/:ver
func (this *manServer) schemaHandler(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
hisAppid := params.ByName(UrlParamAppid)
myAppid := r.Header.Get(HttpHeaderAppid)
topic := params.ByName(UrlParamTopic)
ver := params.ByName(UrlParamVersion)
realIp := getHttpRemoteIp(r)
log.Info("schema[%s] %s(%s) {app:%s topic:%s ver:%s UA:%s}",
myAppid, r.RemoteAddr, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"))
// TODO authorization
_, found := manager.Default.LookupCluster(hisAppid)
if !found {
writeBadRequest(w, "invalid appid")
return
}
// TODO lookup from manager and send reponse
schema, err := manager.Default.TopicSchema(hisAppid, topic, ver)
if err != nil {
writeBadRequest(w, err.Error())
return
}
w.Write([]byte(strings.TrimSpace(schema)))
}
// @rest GET /v1/partitions/:appid/:topic/:ver
func (this *manServer) partitionsHandler(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
topic := params.ByName(UrlParamTopic)
hisAppid := params.ByName(UrlParamAppid)
appid := r.Header.Get(HttpHeaderAppid)
pubkey := r.Header.Get(HttpHeaderPubkey)
ver := params.ByName(UrlParamVersion)
realIp := getHttpRemoteIp(r)
cluster, found := manager.Default.LookupCluster(hisAppid)
if !found {
log.Error("partitions[%s] %s(%s) {app:%s topic:%s ver:%s} invalid appid",
appid, r.RemoteAddr, realIp, hisAppid, topic, ver)
writeBadRequest(w, "invalid appid")
return
}
if !manager.Default.AuthAdmin(appid, pubkey) {
log.Warn("suspicous partitions call from %s(%s) {cluster:%s app:%s key:%s topic:%s ver:%s}",
r.RemoteAddr, realIp, cluster, appid, pubkey, topic, ver)
writeAuthFailure(w, manager.ErrAuthenticationFail)
return
}
log.Info("partitions[%s] %s(%s) {cluster:%s app:%s topic:%s ver:%s}",
appid, r.RemoteAddr, realIp, cluster, hisAppid, topic, ver)
zkcluster := meta.Default.ZkCluster(cluster)
if zkcluster == nil {
log.Error("suspicous partitions call from %s(%s) {cluster:%s app:%s key:%s topic:%s ver:%s} undefined cluster",
r.RemoteAddr, realIp, cluster, appid, pubkey, topic, ver)
writeBadRequest(w, "undefined cluster")
return
}
kfk, err := sarama.NewClient(zkcluster.BrokerList(), sarama.NewConfig())
if err != nil {
log.Error("cluster[%s] %v", zkcluster.Name(), err)
writeServerError(w, err.Error())
return
}
defer kfk.Close()
partitions, err := kfk.Partitions(manager.Default.KafkaTopic(hisAppid, topic, ver))
if err != nil {
log.Error("cluster[%s] from %s(%s) {app:%s topic:%s ver:%s} %v",
zkcluster.Name(), r.RemoteAddr, realIp, hisAppid, topic, ver, err)
writeServerError(w, err.Error())
return
}
w.Write([]byte(fmt.Sprintf(`{"num": %d}`, len(partitions))))
}
// @rest DELETE /v1/jobs/:appid/:topic/:ver?group=xx
func (this *manServer) deleteWebhookHandler(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
topic := params.ByName(UrlParamTopic)
if !manager.Default.ValidateTopicName(topic) {
log.Warn("illegal topic: %s", topic)
writeBadRequest(w, "illegal topic")
return
}
query := r.URL.Query()
group := query.Get("group")
realIp := getHttpRemoteIp(r)
hisAppid := params.ByName(UrlParamAppid)
myAppid := r.Header.Get(HttpHeaderAppid)
ver := params.ByName(UrlParamVersion)
if err := manager.Default.AuthSub(myAppid, r.Header.Get(HttpHeaderSubkey),
hisAppid, topic, group); err != nil {
log.Error("+webhook[%s/%s] -(%s): {%s.%s.%s UA:%s} %v",
myAppid, group, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"), err)
writeAuthFailure(w, err)
return
}
/*
cluster, found := manager.Default.LookupCluster(hisAppid)
if !found {
log.Error("+webhook[%s/%s] -(%s): {%s.%s.%s UA:%s} undefined cluster",
myAppid, group, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"))
writeBadRequest(w, "invalid appid")
return
}
log.Info("+webhook[%s/%s] %s(%s): {%s.%s.%s UA:%s}",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"))
rawTopic := manager.Default.KafkaTopic(hisAppid, topic, ver)
*/
}
// @rest PUT /v1/options/:option/:value
func (this *manServer) setOptionHandler(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
option := params.ByName("option")
value := params.ByName("value")
boolVal := value == "true"
// TODO auth
switch option {
case "debug":
Options.Debug = boolVal
case "nometrics":
Options.DisableMetrics = boolVal
case "gzip":
Options.EnableGzip = boolVal
case "badgroup_rater":
Options.BadGroupRateLimit = boolVal
case "badpub_rater":
Options.BadPubAppRateLimit = boolVal
case "refreshdb":
manager.Default.ForceRefresh()
case "ratelimit":
Options.Ratelimit = boolVal
case "resethh":
hh.Default.ResetCounters()
case "hh":
Options.EnableHintedHandoff = boolVal
if !boolVal {
hh.Default.Stop()
w.Write([]byte(fmt.Sprintf("id:%s hh[%s] stopped", Options.Id, hh.Default.Name())))
return
} else {
if err := hh.Default.Start(); err != nil {
writeServerError(w, err.Error())
return
} else {
w.Write([]byte(fmt.Sprintf("id:%s hh[%s] started", Options.Id, hh.Default.Name())))
return
}
}
case "hhflush":
if boolVal {
if hh.Default == nil {
writeServerError(w, "no underlying hinted handoff")
} else if Options.EnableHintedHandoff {
writeBadRequest(w, "turn off hinted handoff first")
} else {
hh.Default.FlushInflights()
w.Write([]byte(fmt.Sprintf("id:%s hh[%s] inflights flushed", Options.Id, hh.Default.Name())))
}
return
}
case "jobshardid":
shardId, err := strconv.Atoi(value)
if err != nil {
writeBadRequest(w, "invalid job shard id")
return
} else {
Options.AssignJobShardId = shardId
}
case "punish":
d, err := time.ParseDuration(value)
if err != nil {
writeBadRequest(w, err.Error())
return
} else {
Options.BadClientPunishDuration = d
}
case "500backoff":
d, err := time.ParseDuration(value)
if err != nil {
writeBadRequest(w, err.Error())
return
} else {
Options.InternalServerErrorBackoff = d
}
case "auditpub":
Options.AuditPub = boolVal
case "auditsub":
Options.AuditSub = boolVal
case "allhh":
Options.AllwaysHintedHandoff = boolVal
case "standbysub":
Options.PermitStandbySub = boolVal
case "unregroup":
Options.PermitUnregisteredGroup = boolVal
manager.Default.AllowSubWithUnregisteredGroup(boolVal)
case "loglevel":
logLevel = toLogLevel(value)
for _, filter := range log.Global {
filter.Level = logLevel
}
case "maxreq":
Options.MaxRequestPerConn, _ = strconv.Atoi(value)
case "accesslog":
if Options.EnableAccessLog != boolVal {
// on/off switching
if boolVal {
this.gw.accessLogger.Start()
} else {
this.gw.accessLogger.Stop()
}
}
Options.EnableAccessLog = boolVal
default:
log.Warn("invalid option:%s=%s", option, value)
writeBadRequest(w, "invalid option")
return
}
log.Info("option %s(%s) %s to %s, %#v", r.RemoteAddr, getHttpRemoteIp(r), option, value, Options)
w.Write(ResponseOk)
}
// @rest PUT /v1/topics/:appid/:topic/:ver?partitions=1&retention.hours=72&retention.bytes=-1
func (this *manServer) alterTopicHandler(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
topic := params.ByName(UrlParamTopic)
if !manager.Default.ValidateTopicName(topic) {
log.Warn("illegal topic: %s", topic)
writeBadRequest(w, "illegal topic")
return
}
realIp := getHttpRemoteIp(r)
if !this.throttleAddTopic.Pour(realIp, 1) {
writeQuotaExceeded(w)
return
}
hisAppid := params.ByName(UrlParamAppid)
appid := r.Header.Get(HttpHeaderAppid)
pubkey := r.Header.Get(HttpHeaderPubkey)
ver := params.ByName(UrlParamVersion)
if !manager.Default.AuthAdmin(appid, pubkey) {
log.Warn("suspicous alter topic from %s(%s) {appid:%s pubkey:%s topic:%s ver:%s}",
r.RemoteAddr, realIp, appid, pubkey, topic, ver)
writeAuthFailure(w, manager.ErrAuthenticationFail)
return
}
cluster, found := manager.Default.LookupCluster(hisAppid)
if !found {
log.Error("alter topic[%s] %s(%s) {app:%s topic:%s ver:%s} invalid appid",
appid, r.RemoteAddr, realIp, hisAppid, topic, ver)
writeBadRequest(w, "invalid appid")
return
}
zkcluster := meta.Default.ZkCluster(cluster)
if zkcluster == nil {
log.Error("alter topic from %s(%s) {appid:%s pubkey:%s cluster:%s topic:%s ver:%s} undefined cluster",
r.RemoteAddr, realIp, appid, pubkey, cluster, topic, ver)
writeBadRequest(w, "undefined cluster")
return
}
info := zkcluster.RegisteredInfo()
if !info.Public {
log.Warn("app[%s] alter topic:%s in non-public cluster: %+v", hisAppid, topic, params)
writeBadRequest(w, "invalid cluster")
return
}
ts := sla.DefaultSla()
query := r.URL.Query()
if partitionsArg := query.Get(sla.SlaKeyPartitions); partitionsArg != "" {
ts.Partitions, _ = strconv.Atoi(partitionsArg)
}
if retentionBytes := query.Get(sla.SlaKeyRetentionBytes); retentionBytes != "" {
ts.RetentionBytes, _ = strconv.Atoi(retentionBytes)
}
ts.ParseRetentionHours(query.Get(sla.SlaKeyRetentionHours))
// validate the sla
if err := ts.Validate(); err != nil {
log.Error("app[%s] alter topic:%s %s: %+v", hisAppid, topic, query.Encode(), err)
writeBadRequest(w, err.Error())
return
}
log.Info("app[%s] from %s(%s) alter topic: {appid:%s cluster:%s topic:%s ver:%s query:%s}",
appid, r.RemoteAddr, realIp, hisAppid, cluster, topic, ver, query.Encode())
rawTopic := manager.Default.KafkaTopic(hisAppid, topic, ver)
alterConfig := ts.DumpForAlterTopic()
if len(alterConfig) == 0 {
log.Warn("app[%s] from %s(%s) alter topic: {appid:%s cluster:%s topic:%s ver:%s query:%s} nothing updated",
appid, r.RemoteAddr, realIp, hisAppid, cluster, topic, ver, query.Encode())
writeBadRequest(w, "nothing updated")
return
}
lines, err := zkcluster.AlterTopic(rawTopic, ts)
if err != nil {
log.Error("app[%s] from %s(%s) alter topic: {appid:%s cluster:%s topic:%s ver:%s query:%s} %v",
appid, r.RemoteAddr, realIp, hisAppid, cluster, topic, ver, query.Encode(), err)
writeServerError(w, err.Error())
return
}
for _, l := range lines {
log.Trace("app[%s] alter topic[%s] in cluster %s: %s", appid, rawTopic, cluster, l)
}
w.Write(ResponseOk)
}
// @rest PUT /v1/webhook/:appid/:topic/:ver?group=xx
func (this *manServer) createWebhookHandler(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
topic := params.ByName(UrlParamTopic)
if !manager.Default.ValidateTopicName(topic) {
log.Warn("illegal topic: %s", topic)
writeBadRequest(w, "illegal topic")
return
}
query := r.URL.Query()
group := query.Get("group")
realIp := getHttpRemoteIp(r)
hisAppid := params.ByName(UrlParamAppid)
myAppid := r.Header.Get(HttpHeaderAppid)
ver := params.ByName(UrlParamVersion)
if err := manager.Default.AuthSub(myAppid, r.Header.Get(HttpHeaderSubkey),
hisAppid, topic, group); err != nil {
log.Error("+webhook[%s/%s] -(%s): {%s.%s.%s UA:%s} %v",
myAppid, group, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"), err)
writeAuthFailure(w, err)
return
}
cluster, found := manager.Default.LookupCluster(hisAppid)
if !found {
log.Error("+webhook[%s/%s] -(%s): {%s.%s.%s UA:%s} undefined cluster",
myAppid, group, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"))
writeBadRequest(w, "invalid appid")
return
}
log.Info("+webhook[%s/%s] %s(%s): {%s.%s.%s UA:%s}",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"))
rawTopic := manager.Default.KafkaTopic(hisAppid, topic, ver)
var hook zk.WebhookMeta
decoder := json.NewDecoder(r.Body)
if err := decoder.Decode(&hook); err != nil {
log.Error("+webhook[%s/%s] %s(%s): {%s.%s.%s UA:%s} %v",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"), err)
writeBadRequest(w, err.Error())
return
}
r.Body.Close()
// validate the url
for _, ep := range hook.Endpoints {
_, err := url.ParseRequestURI(ep)
if err != nil {
log.Error("+webhook[%s/%s] %s(%s): {%s.%s.%s UA:%s} %+v %v",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"), hook.Endpoints, err)
writeBadRequest(w, err.Error())
return
}
}
hook.Cluster = cluster // cluster is decided by server
if err := this.gw.zkzone.CreateOrUpdateWebhook(rawTopic, hook); err != nil {
log.Error("+webhook[%s/%s] %s(%s): {%s.%s.%s UA:%s} %v",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"), err)
writeServerError(w, err.Error())
return
}
w.Write(ResponseOk)
}
//go:generate goannotation $GOFILE
// @rest PUT /v1/offsets/:appid/:topic/:ver/:group with json body
func (this *subServer) ackHandler(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
var (
topic string
ver string
myAppid string
hisAppid string
group string
err error
)
group = params.ByName(UrlParamGroup)
ver = params.ByName(UrlParamVersion)
topic = params.ByName(UrlParamTopic)
hisAppid = params.ByName(UrlParamAppid)
myAppid = r.Header.Get(HttpHeaderAppid)
if err = manager.Default.AuthSub(myAppid, r.Header.Get(HttpHeaderSubkey),
hisAppid, topic, group); err != nil {
writeAuthFailure(w, err)
return
}
cluster, found := manager.Default.LookupCluster(hisAppid)
if !found {
writeBadRequest(w, "invalid appid")
return
}
msgLen := int(r.ContentLength)
switch {
case int64(msgLen) > Options.MaxPubSize:
writeBadRequest(w, ErrTooBigMessage.Error())
return
case msgLen < Options.MinPubSize:
writeBadRequest(w, ErrTooSmallMessage.Error())
return
}
var msg *mpool.Message
msg = mpool.NewMessage(msgLen)
msg.Body = msg.Body[0:msgLen]
lbr := io.LimitReader(r.Body, Options.MaxPubSize+1)
if _, err = io.ReadAtLeast(lbr, msg.Body, msgLen); err != nil {
msg.Free()
writeBadRequest(w, ErrTooBigMessage.Error())
return
}
var acks ackOffsets
if err = json.Unmarshal(msg.Body, &acks); err != nil {
msg.Free()
writeBadRequest(w, "invalid ack json body")
return
}
msg.Free()
realIp := getHttpRemoteIp(r)
realGroup := myAppid + "." + group
rawTopic := manager.Default.KafkaTopic(hisAppid, topic, ver)
for i := 0; i < len(acks); i++ {
acks[i].cluster = cluster
acks[i].topic = rawTopic
acks[i].group = realGroup
}
log.Debug("ack[%s/%s] %s(%s) {%s.%s.%s UA:%s} %+v",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"), acks)
if atomic.AddInt32(&this.ackShutdown, 1) == 0 {
// kateway is shutting down, ackCh is already closed
log.Warn("ack[%s/%s] %s(%s) {%s.%s.%s UA:%s} server is shutting down %+v ",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"), acks)
writeServerError(w, "server is shutting down")
return
}
this.ackCh <- acks
atomic.AddInt32(&this.ackShutdown, -1)
w.Write(ResponseOk)
}
//go:generate goannotation $GOFILE
// @rest GET /v1/raw/msgs/:cluster/:topic?group=xx&batch=10&reset=<newest|oldest>
func (this *subServer) subRawHandler(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
var (
cluster string
topic string
myAppid string
reset string
group string
limit int // max messages to include in the message set
err error
)
if !Options.DisableMetrics {
this.subMetrics.SubTryQps.Mark(1)
}
query := r.URL.Query()
group = query.Get("group")
reset = query.Get("reset")
realIp := getHttpRemoteIp(r)
if !manager.Default.ValidateGroupName(r.Header, group) {
log.Error("sub raw -(%s): illegal group: %s", realIp, group)
this.subMetrics.ClientError.Mark(1)
writeBadRequest(w, "illegal group")
return
}
limit, err = getHttpQueryInt(&query, "batch", 1)
if err != nil {
log.Error("sub raw -(%s): illegal batch: %v", realIp, err)
this.subMetrics.ClientError.Mark(1)
writeBadRequest(w, "illegal batch")
return
}
if limit > Options.MaxSubBatchSize && Options.MaxSubBatchSize > 0 {
limit = Options.MaxSubBatchSize
}
topic = params.ByName(UrlParamTopic)
cluster = params.ByName("cluster")
myAppid = r.Header.Get(HttpHeaderAppid)
log.Debug("sub raw[%s/%s] %s(%s) {%s/%s batch:%d UA:%s}",
myAppid, group, r.RemoteAddr, realIp, cluster, topic, limit, r.Header.Get("User-Agent"))
if !Options.DisableMetrics {
this.subMetrics.SubQps.Mark(1)
}
fetcher, err := store.DefaultSubStore.Fetch(cluster, topic,
myAppid+"."+group, r.RemoteAddr, realIp, reset, Options.PermitStandbySub)
if err != nil {
// e,g. kafka was totally shutdown
// e,g. too many consumers for the same group
log.Error("sub raw[%s/%s] %s(%s) {%s/%s batch:%d UA:%s} %v",
myAppid, group, r.RemoteAddr, realIp, cluster, topic, limit, r.Header.Get("User-Agent"), err)
if store.DefaultSubStore.IsSystemError(err) {
writeServerError(w, err.Error())
} else {
writeBadRequest(w, err.Error())
}
return
}
var gz *gzip.Writer
w, gz = gzipWriter(w, r)
err = this.pumpRawMessages(w, r, realIp, fetcher, limit, myAppid, topic, group)
if err != nil {
// e,g. broken pipe, io timeout, client gone
// e,g. kafka: error while consuming app1.foobar.v1/0: EOF (kafka was shutdown)
log.Error("sub raw[%s/%s] %s(%s) {%s/%s batch:%d UA:%s} %v",
myAppid, group, r.RemoteAddr, realIp, cluster, topic, limit, r.Header.Get("User-Agent"), err)
if err != ErrClientGone {
if store.DefaultSubStore.IsSystemError(err) {
writeServerError(w, err.Error())
} else {
writeBadRequest(w, err.Error())
}
}
// fetch.Close might be called by subServer.closedConnCh
if err = fetcher.Close(); err != nil {
log.Error("sub raw[%s/%s] %s(%s) {%s/%s batch:%d UA:%s} %v",
myAppid, group, r.RemoteAddr, realIp, cluster, topic, limit, r.Header.Get("User-Agent"), err)
}
}
if gz != nil {
gz.Close()
}
}
//go:generate goannotation $GOFILE
// @rest GET /v1/msgs/:appid/:topic/:ver?group=xx&batch=10&reset=<newest|oldest>&ack=1&q=<dead|retry>
func (this *subServer) subHandler(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
var (
topic string
ver string
myAppid string
hisAppid string
reset string
group string
realGroup string
shadow string
rawTopic string
partition string
partitionN int = -1
offset string
offsetN int64 = -1
limit int // max messages to include in the message set
delayedAck bool // last acked partition/offset piggybacked on this request
err error
)
if !Options.DisableMetrics {
this.subMetrics.SubTryQps.Mark(1)
}
query := r.URL.Query()
group = query.Get("group")
myAppid = r.Header.Get(HttpHeaderAppid)
realGroup = myAppid + "." + group
reset = query.Get("reset")
realIp := getHttpRemoteIp(r)
if !manager.Default.ValidateGroupName(r.Header, group) {
log.Error("sub -(%s): illegal group: %s", realIp, group)
this.subMetrics.ClientError.Mark(1)
writeBadRequest(w, "illegal group")
return
}
if Options.BadGroupRateLimit && !this.throttleBadGroup.Pour(realGroup, 0) {
this.goodGroupLock.RLock()
_, good := this.goodGroupClients[r.RemoteAddr]
this.goodGroupLock.RUnlock()
if !good {
// this bad group client is in confinement period
log.Error("sub -(%s): group[%s] failure quota exceeded %s", realIp, realGroup, r.Header.Get("User-Agent"))
writeQuotaExceeded(w)
return
}
}
limit, err = getHttpQueryInt(&query, "batch", 1)
if err != nil {
log.Error("sub -(%s): illegal batch: %v", realIp, err)
this.subMetrics.ClientError.Mark(1)
writeBadRequest(w, "illegal batch")
return
}
if limit > Options.MaxSubBatchSize && Options.MaxSubBatchSize > 0 {
limit = Options.MaxSubBatchSize
}
ver = params.ByName(UrlParamVersion)
topic = params.ByName(UrlParamTopic)
hisAppid = params.ByName(UrlParamAppid)
// auth
if err = manager.Default.AuthSub(myAppid, r.Header.Get(HttpHeaderSubkey),
hisAppid, topic, group); err != nil {
log.Error("sub[%s/%s] -(%s): {%s.%s.%s UA:%s} %v",
myAppid, group, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"), err)
this.subMetrics.ClientError.Mark(1)
writeAuthFailure(w, err)
return
}
// fetch the client ack partition and offset
delayedAck = query.Get("ack") == "1"
if delayedAck {
// consumers use explicit acknowledges in order to signal a message as processed successfully
// if consumers fail to ACK, the message hangs and server will refuse to move ahead
// get the partitionN and offsetN from client header
// client will ack with partition=-1, offset=-1:
// 1. handshake phase
// 2. when 204 No Content
partition = r.Header.Get(HttpHeaderPartition)
offset = r.Header.Get(HttpHeaderOffset)
if partition != "" && offset != "" {
// convert partition and offset to int
offsetN, err = strconv.ParseInt(offset, 10, 64)
if err != nil {
log.Error("sub[%s/%s] %s(%s) {%s.%s.%s UA:%s} offset:%s",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"), offset)
this.subMetrics.ClientError.Mark(1)
writeBadRequest(w, "ack with bad offset")
return
}
partitionN, err = strconv.Atoi(partition)
if err != nil {
log.Error("sub[%s/%s] %s(%s) {%s.%s.%s UA:%s} partition:%s",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"), partition)
this.subMetrics.ClientError.Mark(1)
writeBadRequest(w, "ack with bad partition")
return
}
} else if len(partition+offset) != 0 {
log.Error("sub[%s/%s] %s(%s) {%s.%s.%s P:%s O:%s UA:%s} partial ack",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, partition, offset, r.Header.Get("User-Agent"))
this.subMetrics.ClientError.Mark(1)
writeBadRequest(w, "partial ack not allowed")
return
}
}
shadow = query.Get("q")
log.Debug("sub[%s/%s] %s(%s) {%s.%s.%s q:%s batch:%d ack:%s P:%s O:%s UA:%s}",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, shadow,
limit, query.Get("ack"), partition, offset, r.Header.Get("User-Agent"))
if !Options.DisableMetrics {
this.subMetrics.SubQps.Mark(1)
}
// calculate raw topic according to shadow
if shadow != "" {
if !sla.ValidateShadowName(shadow) {
log.Error("sub[%s/%s] %s(%s) {%s.%s.%s q:%s UA:%s} invalid shadow name",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, shadow, r.Header.Get("User-Agent"))
this.subMetrics.ClientError.Mark(1)
writeBadRequest(w, "invalid shadow name")
return
}
if !manager.Default.IsShadowedTopic(hisAppid, topic, ver, myAppid, group) {
log.Error("sub[%s/%s] %s(%s) {%s.%s.%s q:%s UA:%s} not a shadowed topic",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, shadow, r.Header.Get("User-Agent"))
this.subMetrics.ClientError.Mark(1)
writeBadRequest(w, "register shadow first")
return
}
rawTopic = manager.Default.ShadowTopic(shadow, myAppid, hisAppid, topic, ver, group)
} else {
rawTopic = manager.Default.KafkaTopic(hisAppid, topic, ver)
}
cluster, found := manager.Default.LookupCluster(hisAppid)
if !found {
log.Error("sub[%s/%s] %s(%s) {%s.%s.%s UA:%s} cluster not found",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"))
this.subMetrics.ClientError.Mark(1)
writeBadRequest(w, "invalid appid")
return
}
fetcher, err := store.DefaultSubStore.Fetch(cluster, rawTopic,
realGroup, r.RemoteAddr, realIp, reset, Options.PermitStandbySub)
if err != nil {
// e,g. kafka was totally shutdown
// e,g. too many consumers for the same group
log.Error("sub[%s/%s] -(%s): {%s.%s.%s UA:%s} %v",
myAppid, group, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"), err)
if store.DefaultSubStore.IsSystemError(err) {
writeServerError(w, err.Error())
} else {
this.subMetrics.ClientError.Mark(1)
if Options.BadGroupRateLimit && !this.throttleBadGroup.Pour(realGroup, 1) {
writeQuotaExceeded(w)
} else {
writeBadRequest(w, err.Error())
}
}
return
}
// commit the acked offset
if delayedAck && partitionN >= 0 && offsetN >= 0 {
if err = fetcher.CommitUpto(&sarama.ConsumerMessage{
Topic: rawTopic,
Partition: int32(partitionN),
Offset: offsetN,
}); err != nil {
// during rebalance, this might happen, but with no bad effects
log.Trace("sub land[%s/%s] %s(%s) {%s/%s ack:1 O:%s UA:%s} %v",
myAppid, group, r.RemoteAddr, realIp, rawTopic, partition, offset, r.Header.Get("User-Agent"), err)
} else {
log.Debug("sub land[%s/%s] %s(%s) {T:%s/%s, O:%s}",
myAppid, group, r.RemoteAddr, realIp, rawTopic, partition, offset)
}
}
var gz *gzip.Writer
w, gz = gzipWriter(w, r)
err = this.pumpMessages(w, r, realIp, fetcher, limit, myAppid, hisAppid, topic, ver, group, delayedAck)
if err != nil {
// e,g. broken pipe, io timeout, client gone
// e,g. kafka: error while consuming app1.foobar.v1/0: EOF (kafka was shutdown)
log.Error("sub[%s/%s] %s(%s) {%s ack:%s P:%s O:%s UA:%s} %v",
myAppid, group, r.RemoteAddr, realIp, rawTopic, query.Get("ack"), partition, offset, r.Header.Get("User-Agent"), err)
if err != ErrClientGone {
if store.DefaultSubStore.IsSystemError(err) {
writeServerError(w, err.Error())
} else {
this.subMetrics.ClientError.Mark(1)
if Options.BadGroupRateLimit && !this.throttleBadGroup.Pour(realGroup, 1) {
writeQuotaExceeded(w)
} else {
writeBadRequest(w, err.Error())
}
}
} else if Options.BadGroupRateLimit && !store.DefaultSubStore.IsSystemError(err) {
this.throttleBadGroup.Pour(realGroup, 1)
}
// fetch.Close might be called by subServer.closedConnCh
if err = fetcher.Close(); err != nil {
log.Error("sub[%s/%s] %s(%s) %s %v", myAppid, group, r.RemoteAddr, realIp, rawTopic, err)
}
} else if w.Header().Get("Connection") == "close" {
// max req reached, synchronously close this connection
if err = fetcher.Close(); err != nil {
log.Error("sub[%s/%s] %s(%s) %s %v", myAppid, group, r.RemoteAddr, realIp, rawTopic, err)
}
}
if Options.BadGroupRateLimit {
// record the good consumer group client
this.goodGroupLock.Lock()
this.goodGroupClients[r.RemoteAddr] = struct{}{}
this.goodGroupLock.Unlock()
}
if gz != nil {
gz.Close()
}
}
//go:generate goannotation $GOFILE
// @rest POST /v1/raw/msgs/:cluster/:topic?key=mykey&async=1&ack=all
func (this *pubServer) pubRawHandler(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
var (
cluster string
topic string
partitionKey string
t1 = time.Now()
)
if !Options.DisableMetrics {
this.pubMetrics.PubTryQps.Mark(1)
}
realIp := getHttpRemoteIp(r)
topic = params.ByName(UrlParamTopic)
cluster = params.ByName("cluster")
buf := bytes.NewBuffer(make([]byte, 0, 1<<10))
_, err := buf.ReadFrom(r.Body)
if err != nil {
log.Error("pub raw %s(%s) {C:%s T:%s UA:%s} %s",
r.RemoteAddr, realIp, cluster, topic, r.Header.Get("User-Agent"), err)
this.pubMetrics.ClientError.Inc(1)
writeBadRequest(w, err.Error())
return
}
body := buf.Bytes()
if !Options.DisableMetrics {
this.pubMetrics.PubQps.Mark(1)
this.pubMetrics.PubMsgSize.Update(int64(len(body)))
}
query := r.URL.Query() // reuse the query will save 100ns
partitionKey = query.Get("key")
pubMethod := store.DefaultPubStore.SyncPub
if query.Get("async") == "1" {
pubMethod = store.DefaultPubStore.AsyncPub
}
if query.Get("ack") == "all" {
pubMethod = store.DefaultPubStore.SyncAllPub
}
_, _, err = pubMethod(cluster, topic, []byte(partitionKey), body)
if err != nil {
log.Error("pub raw %s(%s) {C:%s T:%s UA:%s} %s",
r.RemoteAddr, realIp, cluster, topic, r.Header.Get("User-Agent"), err)
writeServerError(w, err.Error())
return
}
w.WriteHeader(http.StatusCreated)
if _, err = w.Write(ResponseOk); err != nil {
log.Error("pub raw %s(%s) {C:%s T:%s UA:%s} %s",
r.RemoteAddr, realIp, cluster, topic, r.Header.Get("User-Agent"), err)
this.pubMetrics.ClientError.Inc(1)
}
if !Options.DisableMetrics {
this.pubMetrics.PubLatency.Update(time.Since(t1).Nanoseconds() / 1e6) // in ms
}
}
//go:generate goannotation $GOFILE
// @rest PUT /v1/msgs/:appid/:topic/:ver?group=xx&q=<dead|retry>
// q=retry&X-Bury=dead means bury from retry queue to dead queue
func (this *subServer) buryHandler(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
var (
topic string
ver string
myAppid string
hisAppid string
group string
rawTopic string
shadow string
bury string
partition string
partitionN int = -1
offset string
offsetN int64 = -1
err error
)
query := r.URL.Query()
group = query.Get("group")
if !manager.Default.ValidateGroupName(r.Header, group) {
writeBadRequest(w, "illegal group")
return
}
ver = params.ByName(UrlParamVersion)
topic = params.ByName(UrlParamTopic)
hisAppid = params.ByName(UrlParamAppid)
myAppid = r.Header.Get(HttpHeaderAppid)
realIp := getHttpRemoteIp(r)
bury = r.Header.Get(HttpHeaderMsgBury)
if !sla.ValidateShadowName(bury) {
log.Error("bury[%s/%s] %s(%s) {%s.%s.%s UA:%s} illegal bury: %s",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"), bury)
writeBadRequest(w, "illegal bury")
return
}
// auth
if err = manager.Default.AuthSub(myAppid, r.Header.Get(HttpHeaderSubkey),
hisAppid, topic, group); err != nil {
log.Error("bury[%s/%s] %s(%s) {%s.%s.%s UA:%s} %v",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"), err)
writeAuthFailure(w, err)
return
}
partition = r.Header.Get(HttpHeaderPartition)
offset = r.Header.Get(HttpHeaderOffset)
if partition == "" || offset == "" {
log.Error("bury[%s/%s] %s(%s) {%s.%s.%s UA:%s} empty offset or partition",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"))
writeBadRequest(w, "empty offset or partition")
return
}
offsetN, err = strconv.ParseInt(offset, 10, 64)
if err != nil || offsetN < 0 {
log.Error("bury[%s/%s] %s(%s) {%s.%s.%s UA:%s} illegal offset:%s",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"), offset)
writeBadRequest(w, "bad offset")
return
}
partitionN, err = strconv.Atoi(partition)
if err != nil || partitionN < 0 {
log.Error("bury[%s/%s] %s(%s) {%s.%s.%s UA:%s} illegal partition:%s",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"), partition)
writeBadRequest(w, "bad partition")
return
}
shadow = query.Get("q")
log.Debug("bury[%s/%s] %s(%s) {%s.%s.%s bury:%s shadow=%s partition:%s offset:%s UA:%s}",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, bury, shadow, partition, offset, r.Header.Get("User-Agent"))
msgLen := int(r.ContentLength)
msg := make([]byte, msgLen)
if _, err = io.ReadAtLeast(r.Body, msg, msgLen); err != nil {
log.Error("bury[%s/%s] %s(%s) {%s.%s.%s UA:%s} %v",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"), err)
writeBadRequest(w, err.Error())
return
}
cluster, found := manager.Default.LookupCluster(hisAppid)
if !found {
log.Error("bury[%s/%s] %s(%s) {%s.%s.%s UA:%s} invalid appid:%s",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, r.Header.Get("User-Agent"), hisAppid)
writeBadRequest(w, "invalid appid")
return
}
// calculate raw topic according to shadow
if shadow != "" {
if !sla.ValidateShadowName(shadow) {
log.Error("bury[%s/%s] %s(%s) {%s.%s.%s q:%s UA:%s} invalid shadow name",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, shadow, r.Header.Get("User-Agent"))
writeBadRequest(w, "invalid shadow name")
return
}
if !manager.Default.IsShadowedTopic(hisAppid, topic, ver, myAppid, group) {
log.Error("bury[%s/%s] %s(%s) {%s.%s.%s q:%s UA:%s} not a shadowed topic",
myAppid, group, r.RemoteAddr, realIp, hisAppid, topic, ver, shadow, r.Header.Get("User-Agent"))
writeBadRequest(w, "register shadow first")
return
}
rawTopic = manager.Default.ShadowTopic(shadow, myAppid, hisAppid, topic, ver, group)
} else {
rawTopic = manager.Default.KafkaTopic(hisAppid, topic, ver)
}
fetcher, err := store.DefaultSubStore.Fetch(cluster, rawTopic,
myAppid+"."+group, r.RemoteAddr, realIp, "", Options.PermitStandbySub)
if err != nil {
log.Error("bury[%s/%s] %s(%s) {%s UA:%s} %v",
myAppid, group, r.RemoteAddr, realIp, rawTopic, r.Header.Get("User-Agent"), err)
writeBadRequest(w, err.Error())
return
}
// step1: pub
shadowTopic := manager.Default.ShadowTopic(bury, myAppid, hisAppid, topic, ver, group)
_, _, err = store.DefaultPubStore.SyncPub(cluster, shadowTopic, nil, msg)
if err != nil {
log.Error("bury[%s/%s] %s(%s) %s %v", myAppid, group, r.RemoteAddr, realIp, shadowTopic, err)
writeServerError(w, err.Error())
return
}
// step2: skip this message in the master topic TODO atomic with step1
if err = fetcher.CommitUpto(&sarama.ConsumerMessage{
Topic: rawTopic,
Partition: int32(partitionN),
Offset: offsetN,
}); err != nil {
log.Error("bury[%s/%s] %s(%s) %s %v", myAppid, group, r.RemoteAddr, realIp, rawTopic, err)
writeServerError(w, err.Error())
return
}
w.Write(ResponseOk)
}
//go:generate goannotation $GOFILE
// @rest POST /v1/msgs/:topic/:ver?key=mykey&async=1&ack=all&hh=n
func (this *pubServer) pubHandler(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
var (
appid string
topic string
ver string
tag string
partitionKey string
async bool
hhDisabled bool // hh enabled by default
t1 = time.Now()
)
if !Options.DisableMetrics {
this.pubMetrics.PubTryQps.Mark(1)
}
realIp := getHttpRemoteIp(r)
if Options.Ratelimit && !this.throttlePub.Pour(realIp, 1) {
log.Warn("pub[%s] %s(%s) rate limit reached: %d/s", appid, r.RemoteAddr, realIp, Options.PubQpsLimit)
this.pubMetrics.ClientError.Inc(1)
writeQuotaExceeded(w)
return
}
appid = r.Header.Get(HttpHeaderAppid)
topic = params.ByName(UrlParamTopic)
ver = params.ByName(UrlParamVersion)
if err := manager.Default.OwnTopic(appid, r.Header.Get(HttpHeaderPubkey), topic); err != nil {
log.Warn("pub[%s] %s(%s) {topic:%s ver:%s UA:%s} %s",
appid, r.RemoteAddr, realIp, topic, ver, r.Header.Get("User-Agent"), err)
this.pubMetrics.ClientError.Inc(1)
this.respond4XX(appid, w, err.Error(), http.StatusUnauthorized)
return
}
msgLen := int(r.ContentLength)
switch {
case int64(msgLen) > Options.MaxPubSize:
log.Warn("pub[%s] %s(%s) {topic:%s ver:%s UA:%s} too big content length: %d",
appid, r.RemoteAddr, realIp, topic, ver, r.Header.Get("User-Agent"), msgLen)
this.pubMetrics.ClientError.Inc(1)
this.respond4XX(appid, w, ErrTooBigMessage.Error(), http.StatusBadRequest)
return
case msgLen < Options.MinPubSize:
log.Warn("pub[%s] %s(%s) {topic:%s ver:%s UA:%s} too small content length: %d",
appid, r.RemoteAddr, realIp, topic, ver, r.Header.Get("User-Agent"), msgLen)
this.pubMetrics.ClientError.Inc(1)
this.respond4XX(appid, w, ErrTooSmallMessage.Error(), http.StatusBadRequest)
return
}
query := r.URL.Query() // reuse the query will save 100ns
partitionKey = query.Get("key")
if len(partitionKey) > MaxPartitionKeyLen {
log.Warn("pub[%s] %s(%s) {topic:%s ver:%s UA:%s} too big key: %s",
appid, r.RemoteAddr, realIp, topic, ver,
r.Header.Get("User-Agent"), partitionKey)
this.pubMetrics.ClientError.Inc(1)
this.respond4XX(appid, w, "too big key", http.StatusBadRequest)
return
}
var msg *mpool.Message
tag = r.Header.Get(HttpHeaderMsgTag)
if tag != "" {
if len(tag) > Options.MaxMsgTagLen {
this.respond4XX(appid, w, "too big tag", http.StatusBadRequest)
return
}
msgSz := tagLen(tag) + msgLen
msg = mpool.NewMessage(msgSz)
msg.Body = msg.Body[0:msgSz]
} else {
msg = mpool.NewMessage(msgLen)
msg.Body = msg.Body[0:msgLen]
}
// get the raw POST message, if body more than content-length ignore the extra payload
lbr := io.LimitReader(r.Body, Options.MaxPubSize+1)
if _, err := io.ReadAtLeast(lbr, msg.Body, msgLen); err != nil {
msg.Free()
log.Error("pub[%s] %s(%s) {topic:%s ver:%s UA:%s} %s",
appid, r.RemoteAddr, realIp, topic, ver, r.Header.Get("User-Agent"), err)
this.pubMetrics.ClientError.Inc(1)
this.respond4XX(appid, w, err.Error(), http.StatusBadRequest) // TODO http.StatusRequestEntityTooLarge
return
}
if tag != "" {
AddTagToMessage(msg, tag)
}
if !Options.DisableMetrics {
this.pubMetrics.PubQps.Mark(1)
this.pubMetrics.PubMsgSize.Update(int64(len(msg.Body)))
}
cluster, found := manager.Default.LookupCluster(appid)
if !found {
log.Warn("pub[%s] %s(%s) {topic:%s ver:%s UA:%s} cluster not found",
appid, r.RemoteAddr, realIp, topic, r.Header.Get("User-Agent"), ver)
this.pubMetrics.ClientError.Inc(1)
this.respond4XX(appid, w, "invalid appid", http.StatusBadRequest)
return
}
var (
partition int32
offset int64
err error
rawTopic = manager.Default.KafkaTopic(appid, topic, ver)
)
pubMethod := store.DefaultPubStore.SyncPub
async = query.Get("async") == "1"
if async {
pubMethod = store.DefaultPubStore.AsyncPub
}
ackAll := query.Get("ack") == "all"
if ackAll {
pubMethod = store.DefaultPubStore.SyncAllPub
}
hhDisabled = query.Get("hh") == "n" // yes | no
msgKey := []byte(partitionKey)
if ackAll {
// hh not applied
partition, offset, err = pubMethod(cluster, rawTopic, msgKey, msg.Body)
} else if Options.AllwaysHintedHandoff {
err = hh.Default.Append(cluster, rawTopic, msgKey, msg.Body)
} else if !hhDisabled && Options.EnableHintedHandoff && !hh.Default.Empty(cluster, rawTopic) {
err = hh.Default.Append(cluster, rawTopic, msgKey, msg.Body)
} else if async {
if !hhDisabled && Options.EnableHintedHandoff {
// async uses hinted handoff mechanism to save memory overhead
err = hh.Default.Append(cluster, rawTopic, msgKey, msg.Body)
} else {
// message pool can't be applied on async pub because
// we don't know when to recycle the memory
body := make([]byte, 0, len(msg.Body))
copy(body, msg.Body)
partition, offset, err = pubMethod(cluster, rawTopic, msgKey, body)
}
} else {
// hack byte string conv TODO
partition, offset, err = pubMethod(cluster, rawTopic, msgKey, msg.Body)
if err != nil && store.DefaultPubStore.IsSystemError(err) && !hhDisabled && Options.EnableHintedHandoff {
log.Warn("pub[%s] %s(%s) {%s.%s.%s UA:%s} resort hh for: %v", appid, r.RemoteAddr, realIp,
appid, topic, ver, r.Header.Get("User-Agent"), err)
err = hh.Default.Append(cluster, rawTopic, msgKey, msg.Body)
}
}
// in case of request panic, mem pool leakage
msg.Free()
if Options.AuditPub {
this.auditor.Trace("pub[%s] %s(%s) {%s.%s.%s UA:%s} {P:%d O:%d}",
appid, r.RemoteAddr, realIp, appid, topic, ver, r.Header.Get("User-Agent"), partition, offset)
}
if err != nil {
log.Error("pub[%s] %s(%s) {topic:%s ver:%s} %s", appid, r.RemoteAddr, realIp, topic, ver, err)
if !Options.DisableMetrics {
this.pubMetrics.PubFail(appid, topic, ver)
}
if store.DefaultPubStore.IsSystemError(err) {
writeServerError(w, err.Error())
} else {
this.respond4XX(appid, w, err.Error(), http.StatusBadRequest)
}
return
}
w.Header().Set(HttpHeaderPartition, strconv.FormatInt(int64(partition), 10))
w.Header().Set(HttpHeaderOffset, strconv.FormatInt(offset, 10))
if async {
w.WriteHeader(http.StatusAccepted)
} else {
w.WriteHeader(http.StatusCreated)
}
if _, err = w.Write(ResponseOk); err != nil {
log.Error("%s: %v", r.RemoteAddr, err)
this.pubMetrics.ClientError.Inc(1)
}
if !Options.DisableMetrics {
this.pubMetrics.PubOk(appid, topic, ver)
this.pubMetrics.PubLatency.Update(time.Since(t1).Nanoseconds() / 1e6) // in ms
}
}
//go:generate goannotation $GOFILE
// @rest POST /v1/jobs/:topic/:ver?delay=100|due=1471565204
// TODO tag, partitionKey
// TODO use dedicated metrics
func (this *pubServer) addJobHandler(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
if !Options.DisableMetrics {
this.pubMetrics.JobTryQps.Mark(1)
}
t1 := time.Now()
realIp := getHttpRemoteIp(r)
appid := r.Header.Get(HttpHeaderAppid)
var due int64
q := r.URL.Query()
dueParam := q.Get("due") // due has higher priority than delay
if dueParam != "" {
d, err := strconv.ParseInt(dueParam, 10, 64)
if err != nil {
log.Error("+job[%s] %s(%s) due:%s %s", appid, r.RemoteAddr, realIp, dueParam, err)
writeBadRequest(w, "invalid due param")
return
}
due = d
} else {
delayParam := q.Get("delay") // in sec
delay, err := strconv.ParseInt(delayParam, 10, 64)
if err != nil {
log.Error("+job[%s] %s(%s) delay:%s %s", appid, r.RemoteAddr, realIp, delayParam, err)
writeBadRequest(w, "invalid delay param")
return
}
due = t1.Unix() + delay
}
if due <= t1.Unix() {
log.Error("+job[%s] %s(%s) due=%d before now?", appid, r.RemoteAddr, realIp, due)
writeBadRequest(w, "invalid param")
return
}
if Options.Ratelimit && !this.throttlePub.Pour(realIp, 1) {
log.Warn("+job[%s] %s(%s) rate limit reached", appid, r.RemoteAddr, realIp)
writeQuotaExceeded(w)
return
}
topic := params.ByName(UrlParamTopic)
ver := params.ByName(UrlParamVersion)
if err := manager.Default.OwnTopic(appid, r.Header.Get(HttpHeaderPubkey), topic); err != nil {
log.Warn("+job[%s] %s(%s) {topic:%s, ver:%s} %s", appid, r.RemoteAddr, realIp, topic, ver, err)
writeAuthFailure(w, err)
return
}
// get the raw POST message
msgLen := int(r.ContentLength)
switch {
case msgLen == -1:
log.Warn("+job[%s] %s(%s) {topic:%s, ver:%s} invalid content length: %d",
appid, r.RemoteAddr, realIp, topic, ver, msgLen)
writeBadRequest(w, "invalid content length")
return
case int64(msgLen) > Options.MaxJobSize:
log.Warn("+job[%s] %s(%s) {topic:%s, ver:%s} too big content length: %d",
appid, r.RemoteAddr, realIp, topic, ver, msgLen)
writeBadRequest(w, ErrTooBigMessage.Error())
return
case msgLen < Options.MinPubSize:
log.Warn("+job[%s] %s(%s) {topic:%s, ver:%s} too small content length: %d",
appid, r.RemoteAddr, realIp, topic, ver, msgLen)
writeBadRequest(w, ErrTooSmallMessage.Error())
return
}
lbr := io.LimitReader(r.Body, Options.MaxJobSize+1)
msg := mpool.NewMessage(msgLen)
msg.Body = msg.Body[0:msgLen]
if _, err := io.ReadAtLeast(lbr, msg.Body, msgLen); err != nil {
msg.Free()
log.Error("+job[%s] %s(%s) {topic:%s, ver:%s} %s",
appid, r.RemoteAddr, realIp, topic, ver, err)
writeBadRequest(w, ErrTooBigMessage.Error()) // TODO http.StatusRequestEntityTooLarge
return
}
log.Debug("+job[%s] %s(%s) {topic:%s, ver:%s} due:%d/%ds",
appid, r.RemoteAddr, realIp, topic, ver, due, due-t1.Unix())
if !Options.DisableMetrics {
this.pubMetrics.JobQps.Mark(1)
this.pubMetrics.JobMsgSize.Update(int64(len(msg.Body)))
}
_, found := manager.Default.LookupCluster(appid)
if !found {
msg.Free()
log.Error("+job[%s] %s(%s) {topic:%s, ver:%s} cluster not found",
appid, r.RemoteAddr, realIp, topic, ver)
writeBadRequest(w, "invalid appid")
return
}
jobId, err := job.Default.Add(appid, manager.Default.KafkaTopic(appid, topic, ver), msg.Body, due)
msg.Free()
if err != nil {
if !Options.DisableMetrics {
this.pubMetrics.PubFail(appid, topic, ver)
}
log.Error("+job[%s] %s(%s) {topic:%s, ver:%s} %s",
appid, r.RemoteAddr, realIp, topic, ver, err)
writeServerError(w, err.Error())
return
}
if Options.AuditPub {
this.auditor.Trace("+job[%s] %s(%s) {topic:%s ver:%s UA:%s} due:%d id:%s",
appid, r.RemoteAddr, realIp, topic, ver, r.Header.Get("User-Agent"), due, jobId)
}
w.Header().Set(HttpHeaderJobId, jobId)
w.WriteHeader(http.StatusCreated)
if _, err = w.Write(ResponseOk); err != nil {
log.Error("%s: %v", r.RemoteAddr, err)
this.pubMetrics.ClientError.Inc(1)
}
if !Options.DisableMetrics {
this.pubMetrics.PubOk(appid, topic, ver)
this.pubMetrics.PubLatency.Update(time.Since(t1).Nanoseconds() / 1e6) // in ms
}
}
//go:generate goannotation $GOFILE
// @rest GET /v1/ws/msgs/:appid/:topic/:ver?group=xx
func (this *subServer) subWsHandler(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
ws, err := upgrader.Upgrade(w, r, nil)
if err != nil {
log.Error("%s: %v", r.RemoteAddr, err)
return
}
defer func() {
ws.Close()
this.gw.svrMetrics.ConcurrentSubWs.Dec(1)
this.idleConnsWg.Done()
}()
var (
topic string
ver string
myAppid string
hisAppid string
resetOffset string
group string
)
query := r.URL.Query()
group = query.Get("group")
resetOffset = query.Get("reset")
limit, err := getHttpQueryInt(&query, "limit", 1)
if err != nil {
writeWsError(ws, err.Error())
return
}
if !manager.Default.ValidateGroupName(r.Header, group) {
log.Warn("consumer %s{topic:%s, ver:%s, group:%s, limit:%d} invalid group",
r.RemoteAddr, topic, ver, group, limit)
return
}
ver = params.ByName(UrlParamVersion)
topic = params.ByName(UrlParamTopic)
hisAppid = params.ByName(UrlParamAppid)
myAppid = r.Header.Get(HttpHeaderAppid)
realIp := getHttpRemoteIp(r)
if err = manager.Default.AuthSub(myAppid, r.Header.Get(HttpHeaderSubkey),
hisAppid, topic, group); err != nil {
log.Error("consumer[%s] %s {hisapp:%s, topic:%s, ver:%s, group:%s, limit:%d}: %s",
myAppid, r.RemoteAddr, hisAppid, topic, ver, group, limit, err)
writeWsError(ws, "auth fail")
return
}
log.Debug("sub[%s] %s: %+v", myAppid, r.RemoteAddr, params)
rawTopic := manager.Default.KafkaTopic(hisAppid, topic, ver)
cluster, found := manager.Default.LookupCluster(hisAppid)
if !found {
log.Error("cluster not found for subd app: %s", hisAppid)
writeWsError(ws, "invalid subd appid")
return
}
fetcher, err := store.DefaultSubStore.Fetch(cluster, rawTopic,
myAppid+"."+group, r.RemoteAddr, realIp, resetOffset, Options.PermitStandbySub)
if err != nil {
log.Error("sub[%s] %s: %+v %v", myAppid, r.RemoteAddr, params, err)
writeWsError(ws, err.Error())
return
}
// kateway sub client
// | |
// | ping |
// |------------------->|
// | |
// | pong |
// |<-------------------|
// | |
//
clientGone := make(chan struct{})
go this.wsWritePump(clientGone, ws, fetcher)
this.wsReadPump(clientGone, ws)
return
}
//go:generate goannotation $GOFILE
// @rest PUT /v1/raw/offsets/:cluster/:topic/:group with json body
func (this *subServer) ackRawHandler(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
var (
topic string
cluster string
myAppid string
group string
err error
)
group = params.ByName(UrlParamGroup)
cluster = params.ByName("cluster")
topic = params.ByName(UrlParamTopic)
myAppid = r.Header.Get(HttpHeaderAppid)
msgLen := int(r.ContentLength)
switch {
case int64(msgLen) > Options.MaxPubSize:
writeBadRequest(w, ErrTooBigMessage.Error())
return
case msgLen < Options.MinPubSize:
writeBadRequest(w, ErrTooSmallMessage.Error())
return
}
var msg *mpool.Message
msg = mpool.NewMessage(msgLen)
msg.Body = msg.Body[0:msgLen]
lbr := io.LimitReader(r.Body, Options.MaxPubSize+1)
if _, err = io.ReadAtLeast(lbr, msg.Body, msgLen); err != nil {
msg.Free()
writeBadRequest(w, ErrTooBigMessage.Error())
return
}
var acks ackOffsets
if err = json.Unmarshal(msg.Body, &acks); err != nil {
msg.Free()
writeBadRequest(w, "invalid ack json body")
return
}
msg.Free()
realIp := getHttpRemoteIp(r)
realGroup := myAppid + "." + group
for i := 0; i < len(acks); i++ {
acks[i].cluster = cluster
acks[i].topic = topic
acks[i].group = realGroup
}
log.Debug("ack raw[%s/%s] %s(%s) {%s/%s UA:%s} %+v",
myAppid, group, r.RemoteAddr, realIp, cluster, topic, r.Header.Get("User-Agent"), acks)
if atomic.AddInt32(&this.ackShutdown, 1) == 0 {
writeServerError(w, "server is shutting down")
return
}
this.ackCh <- acks
atomic.AddInt32(&this.ackShutdown, -1)
w.Write(ResponseOk)
}