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rpc: add application/json-rpc as accepted content type, fixes #18293 #18310

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Merged
holiman merged 1 commit into from
Dec 14, 2018
Merged

rpc: add application/json-rpc as accepted content type, fixes #18293 #18310

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27 changes: 20 additions & 7 deletions rpc/http.go
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Original file line number Diff line number Diff line change
Expand Up @@ -36,11 +36,15 @@ import (
)

const (
contentType = "application/json"
maxRequestContentLength = 1024 * 512
)

var nullAddr, _ = net.ResolveTCPAddr("tcp", "127.0.0.1:0")
var (
// https://www.jsonrpc.org/historical/json-rpc-over-http.html#id13
acceptedContentTypes = []string{"application/json", "application/json-rpc", "application/jsonrequest"}
contentType = acceptedContentTypes[0]
nullAddr, _ = net.ResolveTCPAddr("tcp", "127.0.0.1:0")
)

type httpConn struct {
client *http.Client
Expand Down Expand Up @@ -263,12 +267,21 @@ func validateRequest(r *http.Request) (int, error) {
err := fmt.Errorf("content length too large (%d>%d)", r.ContentLength, maxRequestContentLength)
return http.StatusRequestEntityTooLarge, err
}
mt, _, err := mime.ParseMediaType(r.Header.Get("content-type"))
if r.Method != http.MethodOptions && (err != nil || mt != contentType) {
err := fmt.Errorf("invalid content type, only %s is supported", contentType)
return http.StatusUnsupportedMediaType, err
// Allow OPTIONS (regardless of content-type)
if r.Method == http.MethodOptions {
return 0, nil
}
// Check content-type
if mt, _, err := mime.ParseMediaType(r.Header.Get("content-type")); err == nil {
for _, accepted := range acceptedContentTypes {
if accepted == mt {
return 0, nil
}
}
}
return 0, nil
// Invalid content-type
err := fmt.Errorf("invalid content type, only %s is supported", contentType)
return http.StatusUnsupportedMediaType, err
}

func newCorsHandler(srv *Server, allowedOrigins []string) http.Handler {
Expand Down