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Lint fixes 4/n

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This commit is contained in:
Juan Font Alonso 2022-06-26 12:06:25 +02:00
parent c859bea0cf
commit 03ced0ecfe
1 changed files with 44 additions and 43 deletions
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87
poll.go
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@ -34,16 +34,16 @@ const machineNameContextKey = contextKey("machineName")
//
// At this moment the updates are sent in a quite horrendous way, but they kinda work.
func (h *Headscale) PollNetMapHandler(
w http.ResponseWriter,
r *http.Request,
writer http.ResponseWriter,
req *http.Request,
) {
vars := mux.Vars(r)
vars := mux.Vars(req)
machineKeyStr, ok := vars["mkey"]
if !ok || machineKeyStr == "" {
log.Error().
Str("handler", "PollNetMap").
Msg("No machine key in request")
http.Error(w, "No machine key in request", http.StatusBadRequest)
http.Error(writer, "No machine key in request", http.StatusBadRequest)
return
}
@ -51,7 +51,7 @@ func (h *Headscale) PollNetMapHandler(
Str("handler", "PollNetMap").
Str("id", machineKeyStr).
Msg("PollNetMapHandler called")
body, _ := io.ReadAll(r.Body)
body, _ := io.ReadAll(req.Body)
var machineKey key.MachinePublic
err := machineKey.UnmarshalText([]byte(MachinePublicKeyEnsurePrefix(machineKeyStr)))
@ -61,18 +61,18 @@ func (h *Headscale) PollNetMapHandler(
Err(err).
Msg("Cannot parse client key")
http.Error(w, "Cannot parse client key", http.StatusBadRequest)
http.Error(writer, "Cannot parse client key", http.StatusBadRequest)
return
}
req := tailcfg.MapRequest{}
mapRequest := tailcfg.MapRequest{}
err = decode(body, &req, &machineKey, h.privateKey)
if err != nil {
log.Error().
Str("handler", "PollNetMap").
Err(err).
Msg("Cannot decode message")
http.Error(w, "Cannot decode message", http.StatusBadRequest)
http.Error(writer, "Cannot decode message", http.StatusBadRequest)
return
}
@ -84,14 +84,14 @@ func (h *Headscale) PollNetMapHandler(
Str("handler", "PollNetMap").
Msgf("Ignoring request, cannot find machine with key %s", machineKey.String())
http.Error(w, "", http.StatusUnauthorized)
http.Error(writer, "", http.StatusUnauthorized)
return
}
log.Error().
Str("handler", "PollNetMap").
Msgf("Failed to fetch machine from the database with Machine key: %s", machineKey.String())
http.Error(w, "", http.StatusInternalServerError)
http.Error(writer, "", http.StatusInternalServerError)
return
}
@ -101,9 +101,9 @@ func (h *Headscale) PollNetMapHandler(
Str("machine", machine.Hostname).
Msg("Found machine in database")
machine.Hostname = req.Hostinfo.Hostname
machine.HostInfo = HostInfo(*req.Hostinfo)
machine.DiscoKey = DiscoPublicKeyStripPrefix(req.DiscoKey)
machine.Hostname = mapRequest.Hostinfo.Hostname
machine.HostInfo = HostInfo(*mapRequest.Hostinfo)
machine.DiscoKey = DiscoPublicKeyStripPrefix(mapRequest.DiscoKey)
now := time.Now().UTC()
// update ACLRules with peer informations (to update server tags if necessary)
@ -125,8 +125,8 @@ func (h *Headscale) PollNetMapHandler(
//
// The intended use is for clients to discover the DERP map at start-up
// before their first real endpoint update.
if !req.ReadOnly {
machine.Endpoints = req.Endpoints
if !mapRequest.ReadOnly {
machine.Endpoints = mapRequest.Endpoints
machine.LastSeen = &now
}
@ -138,13 +138,13 @@ func (h *Headscale) PollNetMapHandler(
Str("machine", machine.Hostname).
Err(err).
Msg("Failed to persist/update machine in the database")
http.Error(w, "", http.StatusInternalServerError)
http.Error(writer, "", http.StatusInternalServerError)
return
}
}
data, err := h.getMapResponse(machineKey, req, machine)
data, err := h.getMapResponse(machineKey, mapRequest, machine)
if err != nil {
log.Error().
Str("handler", "PollNetMap").
@ -152,7 +152,7 @@ func (h *Headscale) PollNetMapHandler(
Str("machine", machine.Hostname).
Err(err).
Msg("Failed to get Map response")
http.Error(w, "", http.StatusInternalServerError)
http.Error(writer, "", http.StatusInternalServerError)
return
}
@ -166,20 +166,20 @@ func (h *Headscale) PollNetMapHandler(
Str("handler", "PollNetMap").
Str("id", machineKeyStr).
Str("machine", machine.Hostname).
Bool("readOnly", req.ReadOnly).
Bool("omitPeers", req.OmitPeers).
Bool("stream", req.Stream).
Bool("readOnly", mapRequest.ReadOnly).
Bool("omitPeers", mapRequest.OmitPeers).
Bool("stream", mapRequest.Stream).
Msg("Client map request processed")
if req.ReadOnly {
if mapRequest.ReadOnly {
log.Info().
Str("handler", "PollNetMap").
Str("machine", machine.Hostname).
Msg("Client is starting up. Probably interested in a DERP map")
w.Header().Set("Content-Type", "application/json; charset=utf-8")
w.WriteHeader(http.StatusOK)
w.Write(data)
writer.Header().Set("Content-Type", "application/json; charset=utf-8")
writer.WriteHeader(http.StatusOK)
writer.Write(data)
return
}
@ -206,14 +206,14 @@ func (h *Headscale) PollNetMapHandler(
keepAliveChan := make(chan []byte)
if req.OmitPeers && !req.Stream {
if mapRequest.OmitPeers && !mapRequest.Stream {
log.Info().
Str("handler", "PollNetMap").
Str("machine", machine.Hostname).
Msg("Client sent endpoint update and is ok with a response without peer list")
w.Header().Set("Content-Type", "application/json; charset=utf-8")
w.WriteHeader(http.StatusOK)
w.Write(data)
writer.Header().Set("Content-Type", "application/json; charset=utf-8")
writer.WriteHeader(http.StatusOK)
writer.Write(data)
// It sounds like we should update the nodes when we have received a endpoint update
// even tho the comments in the tailscale code dont explicitly say so.
updateRequestsFromNode.WithLabelValues(machine.Namespace.Name, machine.Hostname, "endpoint-update").
@ -221,12 +221,12 @@ func (h *Headscale) PollNetMapHandler(
updateChan <- struct{}{}
return
} else if req.OmitPeers && req.Stream {
} else if mapRequest.OmitPeers && mapRequest.Stream {
log.Warn().
Str("handler", "PollNetMap").
Str("machine", machine.Hostname).
Msg("Ignoring request, don't know how to handle it")
http.Error(w, "", http.StatusBadRequest)
http.Error(writer, "", http.StatusBadRequest)
return
}
@ -250,10 +250,10 @@ func (h *Headscale) PollNetMapHandler(
updateChan <- struct{}{}
h.PollNetMapStream(
w,
r,
machine,
writer,
req,
machine,
mapRequest,
machineKey,
pollDataChan,
keepAliveChan,
@ -270,8 +270,8 @@ func (h *Headscale) PollNetMapHandler(
// stream logic, ensuring we communicate updates and data
// to the connected clients.
func (h *Headscale) PollNetMapStream(
w http.ResponseWriter,
r *http.Request,
writer http.ResponseWriter,
req *http.Request,
machine *Machine,
mapRequest tailcfg.MapRequest,
machineKey key.MachinePublic,
@ -279,7 +279,7 @@ func (h *Headscale) PollNetMapStream(
keepAliveChan chan []byte,
updateChan chan struct{},
) {
ctx := context.WithValue(r.Context(), machineNameContextKey, machine.Hostname)
ctx := context.WithValue(req.Context(), machineNameContextKey, machine.Hostname)
ctx, cancel := context.WithCancel(ctx)
defer cancel()
@ -312,7 +312,7 @@ func (h *Headscale) PollNetMapStream(
Str("channel", "pollData").
Int("bytes", len(data)).
Msg("Sending data received via pollData channel")
_, err := w.Write(data)
_, err := writer.Write(data)
if err != nil {
log.Error().
Str("handler", "PollNetMapStream").
@ -323,7 +323,7 @@ func (h *Headscale) PollNetMapStream(
return
}
w.(http.Flusher).Flush()
writer.(http.Flusher).Flush()
log.Trace().
Str("handler", "PollNetMapStream").
@ -380,7 +380,7 @@ func (h *Headscale) PollNetMapStream(
Str("channel", "keepAlive").
Int("bytes", len(data)).
Msg("Sending keep alive message")
_, err := w.Write(data)
_, err := writer.Write(data)
if err != nil {
log.Error().
Str("handler", "PollNetMapStream").
@ -391,7 +391,7 @@ func (h *Headscale) PollNetMapStream(
return
}
w.(http.Flusher).Flush()
writer.(http.Flusher).Flush()
log.Trace().
Str("handler", "PollNetMapStream").
@ -467,7 +467,7 @@ func (h *Headscale) PollNetMapStream(
return
}
_, err = w.Write(data)
_, err = writer.Write(data)
if err != nil {
log.Error().
Str("handler", "PollNetMapStream").
@ -480,7 +480,7 @@ func (h *Headscale) PollNetMapStream(
return
}
w.(http.Flusher).Flush()
writer.(http.Flusher).Flush()
log.Trace().
Str("handler", "PollNetMapStream").
@ -581,6 +581,7 @@ func (h *Headscale) PollNetMapStream(
Str("handler", "PollNetMapStream").
Str("machine", machine.Hostname).
Msg("The long-poll handler is shutting down")
return
}
}