http exhaust and close response body

weed/operation/chunked_file.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"google.golang.org/grpc"
 	"io"
+	"io/ioutil"
 	"net/http"
 	"sort"
 
@@ -103,7 +104,10 @@ func readChunkNeedle(fileUrl string, w io.Writer, offset int64) (written int64,
 	if err != nil {
 		return written, err
 	}
-	defer resp.Body.Close()
+	defer func() {
+		io.Copy(ioutil.Discard, resp.Body)
+		resp.Body.Close()
+	}()
 
 	switch resp.StatusCode {
 	case http.StatusRequestedRangeNotSatisfiable:

weed/server/filer_server_handlers_read.go

@@ -3,6 +3,7 @@ package weed_server
 import (
 	"context"
 	"io"
+	"io/ioutil"
 	"mime"
 	"mime/multipart"
 	"net/http"
@@ -107,7 +108,10 @@ func (fs *FilerServer) handleSingleChunk(w http.ResponseWriter, r *http.Request,
 		writeJsonError(w, r, http.StatusInternalServerError, do_err)
 		return
 	}
-	defer resp.Body.Close()
+	defer func() {
+		io.Copy(ioutil.Discard, resp.Body)
+		resp.Body.Close()
+	}()
 	for k, v := range resp.Header {
 		w.Header()[k] = v
 	}

weed/server/filer_server_handlers_write.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"encoding/json"
 	"errors"
+	"io"
 	"io/ioutil"
 	"mime"
 	"net/http"
@@ -131,7 +132,10 @@ func (fs *FilerServer) PostHandler(w http.ResponseWriter, r *http.Request) {
 		writeJsonError(w, r, http.StatusInternalServerError, do_err)
 		return
 	}
-	defer resp.Body.Close()
+	defer func() {
+		io.Copy(ioutil.Discard, resp.Body)
+		resp.Body.Close()
+	}()
 	etag := resp.Header.Get("ETag")
 	resp_body, ra_err := ioutil.ReadAll(resp.Body)
 	if ra_err != nil {