func (conn *Connection) WriteResetFrame(streamId uint32, errorCode uint32) error {
fmt.Println("ResetFrame", streamId, errorCode)
err := conn.Framer.WriteRSTStream(streamId, http2.ErrCode(errorCode))
if err == nil {
SaveResetFrame(streamId, errorCode)
}
return conn.handleError(err)
}
func (t *http2Client) handleRSTStream(f *http2.RSTStreamFrame) {
s, ok := t.getStream(f)
if !ok {
return
}
s.mu.Lock()
if s.state == streamDone {
s.mu.Unlock()
return
}
s.state = streamDone
s.statusCode, ok = http2RSTErrConvTab[http2.ErrCode(f.ErrCode)]
if !ok {
log.Println("transport: http2Client.handleRSTStream found no mapped gRPC status for the received http2 error ", f.ErrCode)
}
s.mu.Unlock()
s.write(recvMsg{err: io.EOF})
}
func main() {
filename := ""
hostname := ""
if len(os.Args) > 2 {
filename = os.Args[1]
hostname = os.Args[2]
} else {
fmt.Println("Usage: replay [JSON file] [host:port]\nExiting...")
os.Exit(1)
}
file, err := ioutil.ReadFile(filename)
if err != nil {
panic(err)
}
var lines []string
lines = strings.Split(string(file), "\n")
for _, frameJSON := range lines {
if len(frameJSON) < 1 {
break
}
frame := util.FromJSON([]byte(frameJSON))
c := fuzzer.NewConnection(hostname, true, true, true)
switch frame["FrameMethod"] {
case "RawFrame":
fmt.Println(frame)
frameType := http2.FrameType(uint8(frame["FrameType"].(float64)))
flags := http2.Flags(uint8(frame["Flags"].(float64)))
streamID := uint32(frame["StreamID"].(float64))
payload := util.FromBase64(frame["Payload"].(string))
c.Framer.WriteRawFrame(frameType, flags, streamID, payload)
case "PingFrame":
fmt.Println(frame)
data := [8]byte{byte(frame["Byte1"].(float64)), byte(frame["Byte2"].(float64)), byte(frame["Byte3"].(float64)), byte(frame["Byte4"].(float64)), byte(frame["Byte5"].(float64)), byte(frame["Byte6"].(float64)), byte(frame["Byte7"].(float64)), byte(frame["Byte8"].(float64))}
fmt.Println("SENDING DATA ", data)
c.Framer.WritePing(false, data)
case "SettingsFrame":
fmt.Println(frame)
num_settings := uint32(frame["NumberSettings"].(float64))
settings := []http2.Setting{}
for s := uint32(1); s < num_settings; s++ {
setting_id := fmt.Sprintf("SettingID_%d", s)
setting_val := fmt.Sprintf("SettingVal_%d", s)
setting := http2.Setting{
ID: http2.SettingID(frame[setting_id].(float64)),
Val: uint32(frame[setting_val].(float64)),
}
settings = append(settings, setting)
}
fmt.Println("Settings: ", settings)
c.Framer.WriteSettings(settings...)
case "PushPromise":
fmt.Println(frame)
promise := http2.PushPromiseParam{
StreamID: uint32(frame["StreamID"].(float64)),
PromiseID: uint32(frame["PromiseID"].(float64)),
BlockFragment: util.FromBase64(frame["BlockFragment"].(string)),
EndHeaders: bool(frame["EndHeaders"].(bool)),
PadLength: uint8(frame["PadLength"].(float64)),
}
fmt.Println("Push Promise: ", promise)
c.Framer.WritePushPromise(promise)
case "HeaderFrame":
header_frame := http2.HeadersFrameParam{
StreamID: uint32(frame["StreamID"].(float64)),
BlockFragment: util.FromBase64(frame["BlockFragment"].(string)),
EndStream: bool(frame["EndStream"].(bool)),
EndHeaders: bool(frame["EndHeaders"].(bool)),
}
fmt.Println("Headers: ", header_frame)
c.Framer.WriteHeaders(header_frame)
case "RawTCPFrame":
payload := frame["Payload"].(string)
fmt.Println("RawTCP: ", payload)
io.WriteString(c.Raw, string(payload))
case "PriorityFrame":
priority := http2.PriorityParam{
StreamDep: uint32(frame["StreamDep"].(float64)),
Exclusive: bool(frame["Exclusive"].(bool)),
Weight: uint8(frame["Weight"].(float64)),
}
streamID := uint32(frame["StreamID"].(float64))
fmt.Println("PriorityFrame")
c.Framer.WritePriority(streamID, priority)
case "ContinuationFrame":
streamID := uint32(frame["StreamID"].(float64))
endStream := bool(frame["EndStream"].(bool))
payload := util.FromBase64(frame["Payload"].(string))
c.Framer.WriteContinuation(streamID, endStream, payload)
case "DataFrame":
streamID := uint32(frame["StreamID"].(float64))
endStream := bool(frame["EndStream"].(bool))
payload := util.FromBase64(frame["Payload"].(string))
c.Framer.WriteData(streamID, endStream, payload)
case "WindowUpdate":
streamID := uint32(frame["StreamID"].(float64))
incr := uint32(frame["Increment"].(float64))
c.Framer.WriteWindowUpdate(streamID, incr)
case "ResetFrame":
streamID := uint32(frame["StreamID"].(float64))
errorCode := http2.ErrCode(frame["ErrorCode"].(float64))
c.Framer.WriteRSTStream(streamID, errorCode)
}
}
}