mirror of
https://github.com/seaweedfs/seaweedfs.git
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ac875976c0
add some back pressure when writes are slow
145 lines
3.6 KiB
Go
145 lines
3.6 KiB
Go
package weed_server
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import (
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"net/http"
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"strconv"
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"strings"
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"sync/atomic"
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"github.com/chrislusf/seaweedfs/weed/util"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/security"
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"github.com/chrislusf/seaweedfs/weed/stats"
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)
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/*
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If volume server is started with a separated public port, the public port will
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be more "secure".
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Public port currently only supports reads.
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Later writes on public port can have one of the 3
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security settings:
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1. not secured
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2. secured by white list
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3. secured by JWT(Json Web Token)
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*/
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func (vs *VolumeServer) privateStoreHandler(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Server", "SeaweedFS Volume "+util.VERSION)
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if r.Header.Get("Origin") != "" {
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w.Header().Set("Access-Control-Allow-Origin", "*")
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w.Header().Set("Access-Control-Allow-Credentials", "true")
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}
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switch r.Method {
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case "GET", "HEAD":
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stats.ReadRequest()
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vs.GetOrHeadHandler(w, r)
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case "DELETE":
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stats.DeleteRequest()
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vs.guard.WhiteList(vs.DeleteHandler)(w, r)
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case "PUT", "POST":
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// wait until in flight data is less than the limit
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contentLength := getContentLength(r)
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vs.inFlightDataLimitCond.L.Lock()
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for atomic.LoadInt64(&vs.inFlightDataSize) > vs.concurrentUploadLimit {
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vs.inFlightDataLimitCond.Wait()
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}
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atomic.AddInt64(&vs.inFlightDataSize, contentLength)
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vs.inFlightDataLimitCond.L.Unlock()
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defer func() {
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atomic.AddInt64(&vs.inFlightDataSize, -contentLength)
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vs.inFlightDataLimitCond.Signal()
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}()
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// processs uploads
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stats.WriteRequest()
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vs.guard.WhiteList(vs.PostHandler)(w, r)
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case "OPTIONS":
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stats.ReadRequest()
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w.Header().Add("Access-Control-Allow-Methods", "PUT, POST, GET, DELETE, OPTIONS")
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w.Header().Add("Access-Control-Allow-Headers", "*")
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}
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}
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func getContentLength(r *http.Request) int64 {
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contentLength := r.Header.Get("Content-Length")
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if contentLength != "" {
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length, err := strconv.ParseInt(contentLength, 10, 64)
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if err != nil {
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return 0
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}
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return length
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}
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return 0
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}
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func (vs *VolumeServer) publicReadOnlyHandler(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Server", "SeaweedFS Volume "+util.VERSION)
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if r.Header.Get("Origin") != "" {
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w.Header().Set("Access-Control-Allow-Origin", "*")
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w.Header().Set("Access-Control-Allow-Credentials", "true")
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}
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switch r.Method {
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case "GET":
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stats.ReadRequest()
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vs.GetOrHeadHandler(w, r)
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case "HEAD":
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stats.ReadRequest()
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vs.GetOrHeadHandler(w, r)
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case "OPTIONS":
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stats.ReadRequest()
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w.Header().Add("Access-Control-Allow-Methods", "GET, OPTIONS")
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w.Header().Add("Access-Control-Allow-Headers", "*")
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}
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}
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func (vs *VolumeServer) maybeCheckJwtAuthorization(r *http.Request, vid, fid string, isWrite bool) bool {
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var signingKey security.SigningKey
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if isWrite {
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if len(vs.guard.SigningKey) == 0 {
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return true
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} else {
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signingKey = vs.guard.SigningKey
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}
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} else {
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if len(vs.guard.ReadSigningKey) == 0 {
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return true
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} else {
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signingKey = vs.guard.ReadSigningKey
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}
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}
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tokenStr := security.GetJwt(r)
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if tokenStr == "" {
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glog.V(1).Infof("missing jwt from %s", r.RemoteAddr)
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return false
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}
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token, err := security.DecodeJwt(signingKey, tokenStr)
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if err != nil {
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glog.V(1).Infof("jwt verification error from %s: %v", r.RemoteAddr, err)
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return false
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}
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if !token.Valid {
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glog.V(1).Infof("jwt invalid from %s: %v", r.RemoteAddr, tokenStr)
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return false
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}
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if sc, ok := token.Claims.(*security.SeaweedFileIdClaims); ok {
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if sepIndex := strings.LastIndex(fid, "_"); sepIndex > 0 {
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fid = fid[:sepIndex]
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}
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return sc.Fid == vid+","+fid
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}
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glog.V(1).Infof("unexpected jwt from %s: %v", r.RemoteAddr, tokenStr)
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return false
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}
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