mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-11-25 19:49:10 +08:00
318 lines
8.9 KiB
Go
318 lines
8.9 KiB
Go
package weed_server
|
|
|
|
import (
|
|
"encoding/json"
|
|
"errors"
|
|
"fmt"
|
|
"io"
|
|
"mime/multipart"
|
|
"net/http"
|
|
"path/filepath"
|
|
"strconv"
|
|
"strings"
|
|
"time"
|
|
|
|
"google.golang.org/grpc"
|
|
|
|
"github.com/chrislusf/seaweedfs/weed/glog"
|
|
"github.com/chrislusf/seaweedfs/weed/operation"
|
|
"github.com/chrislusf/seaweedfs/weed/stats"
|
|
"github.com/chrislusf/seaweedfs/weed/storage/needle"
|
|
"github.com/chrislusf/seaweedfs/weed/util"
|
|
|
|
"github.com/gorilla/mux"
|
|
statik "github.com/rakyll/statik/fs"
|
|
|
|
_ "github.com/chrislusf/seaweedfs/weed/statik"
|
|
)
|
|
|
|
var serverStats *stats.ServerStats
|
|
var startTime = time.Now()
|
|
var statikFS http.FileSystem
|
|
|
|
func init() {
|
|
serverStats = stats.NewServerStats()
|
|
go serverStats.Start()
|
|
statikFS, _ = statik.New()
|
|
}
|
|
|
|
func writeJson(w http.ResponseWriter, r *http.Request, httpStatus int, obj interface{}) (err error) {
|
|
var bytes []byte
|
|
if r.FormValue("pretty") != "" {
|
|
bytes, err = json.MarshalIndent(obj, "", " ")
|
|
} else {
|
|
bytes, err = json.Marshal(obj)
|
|
}
|
|
if err != nil {
|
|
return
|
|
}
|
|
callback := r.FormValue("callback")
|
|
if callback == "" {
|
|
w.Header().Set("Content-Type", "application/json")
|
|
w.WriteHeader(httpStatus)
|
|
if httpStatus == http.StatusNotModified {
|
|
return
|
|
}
|
|
_, err = w.Write(bytes)
|
|
} else {
|
|
w.Header().Set("Content-Type", "application/javascript")
|
|
w.WriteHeader(httpStatus)
|
|
if httpStatus == http.StatusNotModified {
|
|
return
|
|
}
|
|
if _, err = w.Write([]uint8(callback)); err != nil {
|
|
return
|
|
}
|
|
if _, err = w.Write([]uint8("(")); err != nil {
|
|
return
|
|
}
|
|
fmt.Fprint(w, string(bytes))
|
|
if _, err = w.Write([]uint8(")")); err != nil {
|
|
return
|
|
}
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
// wrapper for writeJson - just logs errors
|
|
func writeJsonQuiet(w http.ResponseWriter, r *http.Request, httpStatus int, obj interface{}) {
|
|
if err := writeJson(w, r, httpStatus, obj); err != nil {
|
|
glog.V(0).Infof("error writing JSON status %d: %v", httpStatus, err)
|
|
glog.V(1).Infof("JSON content: %+v", obj)
|
|
}
|
|
}
|
|
func writeJsonError(w http.ResponseWriter, r *http.Request, httpStatus int, err error) {
|
|
m := make(map[string]interface{})
|
|
m["error"] = err.Error()
|
|
writeJsonQuiet(w, r, httpStatus, m)
|
|
}
|
|
|
|
func debug(params ...interface{}) {
|
|
glog.V(4).Infoln(params...)
|
|
}
|
|
|
|
func submitForClientHandler(w http.ResponseWriter, r *http.Request, masterUrl string, grpcDialOption grpc.DialOption) {
|
|
m := make(map[string]interface{})
|
|
if r.Method != "POST" {
|
|
writeJsonError(w, r, http.StatusMethodNotAllowed, errors.New("Only submit via POST!"))
|
|
return
|
|
}
|
|
|
|
debug("parsing upload file...")
|
|
pu, pe := needle.ParseUpload(r, 256*1024*1024)
|
|
if pe != nil {
|
|
writeJsonError(w, r, http.StatusBadRequest, pe)
|
|
return
|
|
}
|
|
|
|
debug("assigning file id for", pu.FileName)
|
|
r.ParseForm()
|
|
count := uint64(1)
|
|
if r.FormValue("count") != "" {
|
|
count, pe = strconv.ParseUint(r.FormValue("count"), 10, 32)
|
|
if pe != nil {
|
|
writeJsonError(w, r, http.StatusBadRequest, pe)
|
|
return
|
|
}
|
|
}
|
|
ar := &operation.VolumeAssignRequest{
|
|
Count: count,
|
|
DataCenter: r.FormValue("dataCenter"),
|
|
Replication: r.FormValue("replication"),
|
|
Collection: r.FormValue("collection"),
|
|
Ttl: r.FormValue("ttl"),
|
|
}
|
|
assignResult, ae := operation.Assign(masterUrl, grpcDialOption, ar)
|
|
if ae != nil {
|
|
writeJsonError(w, r, http.StatusInternalServerError, ae)
|
|
return
|
|
}
|
|
|
|
url := "http://" + assignResult.Url + "/" + assignResult.Fid
|
|
if pu.ModifiedTime != 0 {
|
|
url = url + "?ts=" + strconv.FormatUint(pu.ModifiedTime, 10)
|
|
}
|
|
|
|
debug("upload file to store", url)
|
|
uploadResult, err := operation.UploadData(url, pu.FileName, false, pu.Data, pu.IsGzipped, pu.MimeType, pu.PairMap, assignResult.Auth)
|
|
if err != nil {
|
|
writeJsonError(w, r, http.StatusInternalServerError, err)
|
|
return
|
|
}
|
|
|
|
m["fileName"] = pu.FileName
|
|
m["fid"] = assignResult.Fid
|
|
m["fileUrl"] = assignResult.PublicUrl + "/" + assignResult.Fid
|
|
m["size"] = pu.OriginalDataSize
|
|
m["eTag"] = uploadResult.ETag
|
|
writeJsonQuiet(w, r, http.StatusCreated, m)
|
|
return
|
|
}
|
|
|
|
func parseURLPath(path string) (vid, fid, filename, ext string, isVolumeIdOnly bool) {
|
|
switch strings.Count(path, "/") {
|
|
case 3:
|
|
parts := strings.Split(path, "/")
|
|
vid, fid, filename = parts[1], parts[2], parts[3]
|
|
ext = filepath.Ext(filename)
|
|
case 2:
|
|
parts := strings.Split(path, "/")
|
|
vid, fid = parts[1], parts[2]
|
|
dotIndex := strings.LastIndex(fid, ".")
|
|
if dotIndex > 0 {
|
|
ext = fid[dotIndex:]
|
|
fid = fid[0:dotIndex]
|
|
}
|
|
default:
|
|
sepIndex := strings.LastIndex(path, "/")
|
|
commaIndex := strings.LastIndex(path[sepIndex:], ",")
|
|
if commaIndex <= 0 {
|
|
vid, isVolumeIdOnly = path[sepIndex+1:], true
|
|
return
|
|
}
|
|
dotIndex := strings.LastIndex(path[sepIndex:], ".")
|
|
vid = path[sepIndex+1 : commaIndex]
|
|
fid = path[commaIndex+1:]
|
|
ext = ""
|
|
if dotIndex > 0 {
|
|
fid = path[commaIndex+1 : dotIndex]
|
|
ext = path[dotIndex:]
|
|
}
|
|
}
|
|
return
|
|
}
|
|
|
|
func statsHealthHandler(w http.ResponseWriter, r *http.Request) {
|
|
m := make(map[string]interface{})
|
|
m["Version"] = util.VERSION
|
|
writeJsonQuiet(w, r, http.StatusOK, m)
|
|
}
|
|
func statsCounterHandler(w http.ResponseWriter, r *http.Request) {
|
|
m := make(map[string]interface{})
|
|
m["Version"] = util.VERSION
|
|
m["Counters"] = serverStats
|
|
writeJsonQuiet(w, r, http.StatusOK, m)
|
|
}
|
|
|
|
func statsMemoryHandler(w http.ResponseWriter, r *http.Request) {
|
|
m := make(map[string]interface{})
|
|
m["Version"] = util.VERSION
|
|
m["Memory"] = stats.MemStat()
|
|
writeJsonQuiet(w, r, http.StatusOK, m)
|
|
}
|
|
|
|
func handleStaticResources(defaultMux *http.ServeMux) {
|
|
defaultMux.Handle("/favicon.ico", http.FileServer(statikFS))
|
|
defaultMux.Handle("/seaweedfsstatic/", http.StripPrefix("/seaweedfsstatic", http.FileServer(statikFS)))
|
|
}
|
|
|
|
func handleStaticResources2(r *mux.Router) {
|
|
r.Handle("/favicon.ico", http.FileServer(statikFS))
|
|
r.PathPrefix("/seaweedfsstatic/").Handler(http.StripPrefix("/seaweedfsstatic", http.FileServer(statikFS)))
|
|
}
|
|
|
|
func adjustHeadersAfterHEAD(w http.ResponseWriter, r *http.Request, filename string) {
|
|
if filename != "" {
|
|
contentDisposition := "inline"
|
|
if r.FormValue("dl") != "" {
|
|
if dl, _ := strconv.ParseBool(r.FormValue("dl")); dl {
|
|
contentDisposition = "attachment"
|
|
}
|
|
}
|
|
w.Header().Set("Content-Disposition", contentDisposition+`; filename="`+fileNameEscaper.Replace(filename)+`"`)
|
|
}
|
|
}
|
|
|
|
func processRangeRequst(r *http.Request, w http.ResponseWriter, totalSize int64, mimeType string, writeFn func(writer io.Writer, offset int64, size int64) error) {
|
|
rangeReq := r.Header.Get("Range")
|
|
|
|
if rangeReq == "" {
|
|
w.Header().Set("Content-Length", strconv.FormatInt(totalSize, 10))
|
|
if err := writeFn(w, 0, totalSize); err != nil {
|
|
http.Error(w, err.Error(), http.StatusInternalServerError)
|
|
return
|
|
}
|
|
return
|
|
}
|
|
|
|
//the rest is dealing with partial content request
|
|
//mostly copy from src/pkg/net/http/fs.go
|
|
ranges, err := parseRange(rangeReq, totalSize)
|
|
if err != nil {
|
|
http.Error(w, err.Error(), http.StatusRequestedRangeNotSatisfiable)
|
|
return
|
|
}
|
|
if sumRangesSize(ranges) > totalSize {
|
|
// The total number of bytes in all the ranges
|
|
// is larger than the size of the file by
|
|
// itself, so this is probably an attack, or a
|
|
// dumb client. Ignore the range request.
|
|
return
|
|
}
|
|
if len(ranges) == 0 {
|
|
return
|
|
}
|
|
if len(ranges) == 1 {
|
|
// RFC 2616, Section 14.16:
|
|
// "When an HTTP message includes the content of a single
|
|
// range (for example, a response to a request for a
|
|
// single range, or to a request for a set of ranges
|
|
// that overlap without any holes), this content is
|
|
// transmitted with a Content-Range header, and a
|
|
// Content-Length header showing the number of bytes
|
|
// actually transferred.
|
|
// ...
|
|
// A response to a request for a single range MUST NOT
|
|
// be sent using the multipart/byteranges media type."
|
|
ra := ranges[0]
|
|
w.Header().Set("Content-Length", strconv.FormatInt(ra.length, 10))
|
|
w.Header().Set("Content-Range", ra.contentRange(totalSize))
|
|
w.WriteHeader(http.StatusPartialContent)
|
|
|
|
err = writeFn(w, ra.start, ra.length)
|
|
if err != nil {
|
|
http.Error(w, err.Error(), http.StatusInternalServerError)
|
|
return
|
|
}
|
|
return
|
|
}
|
|
|
|
// process multiple ranges
|
|
for _, ra := range ranges {
|
|
if ra.start > totalSize {
|
|
http.Error(w, "Out of Range", http.StatusRequestedRangeNotSatisfiable)
|
|
return
|
|
}
|
|
}
|
|
sendSize := rangesMIMESize(ranges, mimeType, totalSize)
|
|
pr, pw := io.Pipe()
|
|
mw := multipart.NewWriter(pw)
|
|
w.Header().Set("Content-Type", "multipart/byteranges; boundary="+mw.Boundary())
|
|
sendContent := pr
|
|
defer pr.Close() // cause writing goroutine to fail and exit if CopyN doesn't finish.
|
|
go func() {
|
|
for _, ra := range ranges {
|
|
part, e := mw.CreatePart(ra.mimeHeader(mimeType, totalSize))
|
|
if e != nil {
|
|
pw.CloseWithError(e)
|
|
return
|
|
}
|
|
if e = writeFn(part, ra.start, ra.length); e != nil {
|
|
pw.CloseWithError(e)
|
|
return
|
|
}
|
|
}
|
|
mw.Close()
|
|
pw.Close()
|
|
}()
|
|
if w.Header().Get("Content-Encoding") == "" {
|
|
w.Header().Set("Content-Length", strconv.FormatInt(sendSize, 10))
|
|
}
|
|
w.WriteHeader(http.StatusPartialContent)
|
|
if _, err := io.CopyN(w, sendContent, sendSize); err != nil {
|
|
http.Error(w, "Internal Error", http.StatusInternalServerError)
|
|
return
|
|
}
|
|
}
|