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-rw-r--r--rpc/http.go11
1 files changed, 11 insertions, 0 deletions
diff --git a/rpc/http.go b/rpc/http.go
index 4143e2a8d..3f572b34c 100644
--- a/rpc/http.go
+++ b/rpc/http.go
@@ -23,6 +23,7 @@ import (
"fmt"
"io"
"io/ioutil"
+ "mime"
"net"
"net/http"
"sync"
@@ -151,6 +152,16 @@ func (srv *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
http.StatusRequestEntityTooLarge)
return
}
+
+ ct := r.Header.Get("content-type")
+ mt, _, err := mime.ParseMediaType(ct)
+ if err != nil || mt != "application/json" {
+ http.Error(w,
+ "invalid content type, only application/json is supported",
+ http.StatusUnsupportedMediaType)
+ return
+ }
+
w.Header().Set("content-type", "application/json")
// create a codec that reads direct from the request body until