func (p *Proxy) Handler(ctx *fasthttp.RequestCtx) {
respState := rule.Evaluate(p.Rules, ctx)
if respState == types.SERVED {
return
}
appRequest := fasthttp.AcquireRequest()
defer fasthttp.ReleaseRequest(appRequest)
appRequest.Header.SetMethodBytes(ctx.Method())
ctx.Request.Header.CopyTo(&appRequest.Header)
if ctx.IsPost() || ctx.IsPut() {
appRequest.SetBody(ctx.PostBody())
}
resp := fasthttp.AcquireResponse()
defer fasthttp.ReleaseResponse(resp)
err := p.client.Do(appRequest, resp)
if err != nil {
log.Println("Response error:", err, resp)
ctx.SetStatusCode(429)
return
}
resp.Header.CopyTo(&ctx.Response.Header)
ctx.SetStatusCode(resp.StatusCode())
resp.BodyWriteTo(ctx)
}
// SetPost is the API method for creating a new post.
func SetPost(ctx *fasthttp.RequestCtx, _ fasthttprouter.Params) {
v := &struct {
Title string
Body string
}{}
err := json.Unmarshal(ctx.PostBody(), v)
if err != nil {
ctx.Error(err.Error(), fasthttp.StatusInternalServerError)
return
}
p := model.NewPost(v.Title, v.Body)
id, err := p.Set(s)
if err != nil {
ctx.Error(err.Error(), fasthttp.StatusInternalServerError)
return
}
ctx.Response.Header.Set("Content-Type", "application/json")
resp, err := json.MarshalIndent(map[string]string{
"id": string(id),
}, "", " ")
if err != nil {
ctx.Error(err.Error(), fasthttp.StatusInternalServerError)
}
ctx.Write(resp)
}
func (l *logAction) Act(ruleName string, ctx *fasthttp.RequestCtx) error {
_, err := fmt.Fprintf(
l.destination,
"[%v] %v %s %s %s%s \"%s\" \"%s\"\n",
ruleName,
time.Now().Format("2006-01-02 15:04:05.000"),
ctx.Request.Header.Peek("X-Forwarded-For"),
ctx.Method(),
ctx.Host(),
ctx.RequestURI(),
ctx.PostBody(),
ctx.Request.Header.UserAgent(),
)
return err
}
// /topics/:topic/:ver?key=mykey&async=1&delay=100
func (this *Gateway) pubHandler(ctx *fasthttp.RequestCtx, params fasthttprouter.Params) {
t1 := time.Now()
topic := params.ByName(UrlParamTopic)
header := ctx.Request.Header
appid := string(header.Peek(HttpHeaderAppid))
pubkey := string(header.Peek(HttpHeaderPubkey))
if err := manager.Default.OwnTopic(appid, pubkey, topic); err != nil {
log.Error("app[%s] %s %+v: %v", appid, ctx.RemoteAddr(), params, err)
ctx.SetConnectionClose()
ctx.Error("invalid secret", fasthttp.StatusUnauthorized)
return
}
msgLen := ctx.Request.Header.ContentLength()
switch {
case msgLen == -1:
log.Warn("pub[%s] %s %+v invalid content length", appid, ctx.RemoteAddr(), params)
ctx.Error("invalid content length", fasthttp.StatusBadRequest)
return
case int64(msgLen) > options.MaxPubSize:
log.Warn("pub[%s] %s %+v too big content length:%d", appid, ctx.RemoteAddr(), params, msgLen)
ctx.Error(ErrTooBigPubMessage.Error(), fasthttp.StatusBadRequest)
return
case msgLen < options.MinPubSize:
log.Warn("pub[%s] %s %+v too small content length:%d", appid, ctx.RemoteAddr(), params, msgLen)
ctx.Error(ErrTooSmallPubMessage.Error(), fasthttp.StatusBadRequest)
return
}
ver := params.ByName(UrlParamVersion)
queryArgs := ctx.Request.URI().QueryArgs()
key := queryArgs.Peek("key")
asyncArg := queryArgs.Peek("async")
async := len(asyncArg) == 1 && asyncArg[0] == '1'
//delay := hack.String(queryArgs.Peek("delay"))
if options.Debug {
log.Debug("pub[%s] %s {topic:%s, ver:%s, key:%s, async:%+v} %s",
appid, ctx.RemoteAddr(),
topic, ver, key, async,
string(ctx.Request.Body()))
}
if !options.DisableMetrics {
this.pubMetrics.PubQps.Mark(1)
this.pubMetrics.PubMsgSize.Update(int64(len(ctx.PostBody())))
}
pubMethod := store.DefaultPubStore.SyncPub
if async {
pubMethod = store.DefaultPubStore.AsyncPub
}
cluster, found := manager.Default.LookupCluster(appid)
if !found {
log.Error("cluster not found for app: %s", appid)
ctx.Error("invalid appid", fasthttp.StatusBadRequest)
return
}
err := pubMethod(cluster,
manager.Default.KafkaTopic(appid, topic, ver),
key, ctx.PostBody())
if err != nil {
if !options.DisableMetrics {
this.pubMetrics.PubFail(appid, topic, ver)
}
log.Error("%s: %v", ctx.RemoteAddr(), err)
ctx.Error(err.Error(), fasthttp.StatusInternalServerError)
return
}
// write the reponse
ctx.Write(ResponseOk)
if !options.DisableMetrics {
this.pubMetrics.PubOk(appid, topic, ver)
this.pubMetrics.PubLatency.Update(time.Since(t1).Nanoseconds() / 1e6) // in ms
}
}