mirror of
https://github.com/juanfont/headscale.git
synced 2025-11-04 10:01:05 +01:00
Remove gin from the poll handlers
This commit is contained in:
Juan Font Alonso
parent
dedeb4c181
commit
53e5c05b0a
125
poll.go
125
poll.go
@ -2,13 +2,14 @@ package headscale
|
||||
|
||||
import (
|
||||
"context"
|
||||
"encoding/json"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"net/http"
|
||||
"time"
|
||||
|
||||
"github.com/gin-gonic/gin"
|
||||
"github.com/gorilla/mux"
|
||||
"github.com/rs/zerolog/log"
|
||||
"gorm.io/gorm"
|
||||
"tailscale.com/tailcfg"
|
||||
@ -33,13 +34,25 @@ const machineNameContextKey = contextKey("machineName")
|
||||
// only after their first request (marked with the ReadOnly field).
|
||||
//
|
||||
// At this moment the updates are sent in a quite horrendous way, but they kinda work.
|
||||
func (h *Headscale) PollNetMapHandler(ctx *gin.Context) {
|
||||
func (h *Headscale) PollNetMapHandler(
|
||||
w http.ResponseWriter,
|
||||
r *http.Request,
|
||||
) {
|
||||
vars := mux.Vars(r)
|
||||
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)
|
||||
|
||||
return
|
||||
}
|
||||
log.Trace().
|
||||
Str("handler", "PollNetMap").
|
||||
Str("id", ctx.Param("id")).
|
||||
Str("id", machineKeyStr).
|
||||
Msg("PollNetMapHandler called")
|
||||
body, _ := io.ReadAll(ctx.Request.Body)
|
||||
machineKeyStr := ctx.Param("id")
|
||||
body, _ := io.ReadAll(r.Body)
|
||||
|
||||
var machineKey key.MachinePublic
|
||||
err := machineKey.UnmarshalText([]byte(MachinePublicKeyEnsurePrefix(machineKeyStr)))
|
||||
@ -48,7 +61,8 @@ func (h *Headscale) PollNetMapHandler(ctx *gin.Context) {
|
||||
Str("handler", "PollNetMap").
|
||||
Err(err).
|
||||
Msg("Cannot parse client key")
|
||||
ctx.String(http.StatusBadRequest, "")
|
||||
|
||||
http.Error(w, "Cannot parse client key", http.StatusBadRequest)
|
||||
|
||||
return
|
||||
}
|
||||
@ -59,7 +73,7 @@ func (h *Headscale) PollNetMapHandler(ctx *gin.Context) {
|
||||
Str("handler", "PollNetMap").
|
||||
Err(err).
|
||||
Msg("Cannot decode message")
|
||||
ctx.String(http.StatusBadRequest, "")
|
||||
http.Error(w, "Cannot decode message", http.StatusBadRequest)
|
||||
|
||||
return
|
||||
}
|
||||
@ -70,20 +84,21 @@ func (h *Headscale) PollNetMapHandler(ctx *gin.Context) {
|
||||
log.Warn().
|
||||
Str("handler", "PollNetMap").
|
||||
Msgf("Ignoring request, cannot find machine with key %s", machineKey.String())
|
||||
ctx.String(http.StatusUnauthorized, "")
|
||||
|
||||
http.Error(w, "", http.StatusUnauthorized)
|
||||
|
||||
return
|
||||
}
|
||||
log.Error().
|
||||
Str("handler", "PollNetMap").
|
||||
Msgf("Failed to fetch machine from the database with Machine key: %s", machineKey.String())
|
||||
ctx.String(http.StatusInternalServerError, "")
|
||||
http.Error(w, "", http.StatusInternalServerError)
|
||||
|
||||
return
|
||||
}
|
||||
log.Trace().
|
||||
Str("handler", "PollNetMap").
|
||||
Str("id", ctx.Param("id")).
|
||||
Str("id", machineKeyStr).
|
||||
Str("machine", machine.Hostname).
|
||||
Msg("Found machine in database")
|
||||
|
||||
@ -120,11 +135,11 @@ func (h *Headscale) PollNetMapHandler(ctx *gin.Context) {
|
||||
if err != nil {
|
||||
log.Error().
|
||||
Str("handler", "PollNetMap").
|
||||
Str("id", ctx.Param("id")).
|
||||
Str("id", machineKeyStr).
|
||||
Str("machine", machine.Hostname).
|
||||
Err(err).
|
||||
Msg("Failed to persist/update machine in the database")
|
||||
ctx.String(http.StatusInternalServerError, ":(")
|
||||
http.Error(w, "", http.StatusInternalServerError)
|
||||
|
||||
return
|
||||
}
|
||||
@ -134,11 +149,11 @@ func (h *Headscale) PollNetMapHandler(ctx *gin.Context) {
|
||||
if err != nil {
|
||||
log.Error().
|
||||
Str("handler", "PollNetMap").
|
||||
Str("id", ctx.Param("id")).
|
||||
Str("id", machineKeyStr).
|
||||
Str("machine", machine.Hostname).
|
||||
Err(err).
|
||||
Msg("Failed to get Map response")
|
||||
ctx.String(http.StatusInternalServerError, ":(")
|
||||
http.Error(w, "", http.StatusInternalServerError)
|
||||
|
||||
return
|
||||
}
|
||||
@ -150,7 +165,7 @@ func (h *Headscale) PollNetMapHandler(ctx *gin.Context) {
|
||||
// Details on the protocol can be found in https://github.com/tailscale/tailscale/blob/main/tailcfg/tailcfg.go#L696
|
||||
log.Debug().
|
||||
Str("handler", "PollNetMap").
|
||||
Str("id", ctx.Param("id")).
|
||||
Str("id", machineKeyStr).
|
||||
Str("machine", machine.Hostname).
|
||||
Bool("readOnly", req.ReadOnly).
|
||||
Bool("omitPeers", req.OmitPeers).
|
||||
@ -162,7 +177,10 @@ func (h *Headscale) PollNetMapHandler(ctx *gin.Context) {
|
||||
Str("handler", "PollNetMap").
|
||||
Str("machine", machine.Hostname).
|
||||
Msg("Client is starting up. Probably interested in a DERP map")
|
||||
ctx.Data(http.StatusOK, "application/json; charset=utf-8", data)
|
||||
|
||||
w.Header().Set("Content-Type", "application/json; charset=utf-8")
|
||||
w.WriteHeader(http.StatusOK)
|
||||
json.NewEncoder(w).Encode(data)
|
||||
|
||||
return
|
||||
}
|
||||
@ -177,7 +195,7 @@ func (h *Headscale) PollNetMapHandler(ctx *gin.Context) {
|
||||
// Only create update channel if it has not been created
|
||||
log.Trace().
|
||||
Str("handler", "PollNetMap").
|
||||
Str("id", ctx.Param("id")).
|
||||
Str("id", machineKeyStr).
|
||||
Str("machine", machine.Hostname).
|
||||
Msg("Loading or creating update channel")
|
||||
|
||||
@ -194,8 +212,9 @@ func (h *Headscale) PollNetMapHandler(ctx *gin.Context) {
|
||||
Str("handler", "PollNetMap").
|
||||
Str("machine", machine.Hostname).
|
||||
Msg("Client sent endpoint update and is ok with a response without peer list")
|
||||
ctx.Data(http.StatusOK, "application/json; charset=utf-8", data)
|
||||
|
||||
w.Header().Set("Content-Type", "application/json; charset=utf-8")
|
||||
w.WriteHeader(http.StatusOK)
|
||||
json.NewEncoder(w).Encode(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").
|
||||
@ -208,7 +227,7 @@ func (h *Headscale) PollNetMapHandler(ctx *gin.Context) {
|
||||
Str("handler", "PollNetMap").
|
||||
Str("machine", machine.Hostname).
|
||||
Msg("Ignoring request, don't know how to handle it")
|
||||
ctx.String(http.StatusBadRequest, "")
|
||||
http.Error(w, "", http.StatusBadRequest)
|
||||
|
||||
return
|
||||
}
|
||||
@ -232,7 +251,8 @@ func (h *Headscale) PollNetMapHandler(ctx *gin.Context) {
|
||||
updateChan <- struct{}{}
|
||||
|
||||
h.PollNetMapStream(
|
||||
ctx,
|
||||
w,
|
||||
r,
|
||||
machine,
|
||||
req,
|
||||
machineKey,
|
||||
@ -242,7 +262,7 @@ func (h *Headscale) PollNetMapHandler(ctx *gin.Context) {
|
||||
)
|
||||
log.Trace().
|
||||
Str("handler", "PollNetMap").
|
||||
Str("id", ctx.Param("id")).
|
||||
Str("id", machineKeyStr).
|
||||
Str("machine", machine.Hostname).
|
||||
Msg("Finished stream, closing PollNetMap session")
|
||||
}
|
||||
@ -251,7 +271,8 @@ func (h *Headscale) PollNetMapHandler(ctx *gin.Context) {
|
||||
// stream logic, ensuring we communicate updates and data
|
||||
// to the connected clients.
|
||||
func (h *Headscale) PollNetMapStream(
|
||||
ctx *gin.Context,
|
||||
w http.ResponseWriter,
|
||||
r *http.Request,
|
||||
machine *Machine,
|
||||
mapRequest tailcfg.MapRequest,
|
||||
machineKey key.MachinePublic,
|
||||
@ -259,26 +280,7 @@ func (h *Headscale) PollNetMapStream(
|
||||
keepAliveChan chan []byte,
|
||||
updateChan chan struct{},
|
||||
) {
|
||||
{
|
||||
machine, err := h.GetMachineByMachineKey(machineKey)
|
||||
if err != nil {
|
||||
if errors.Is(err, gorm.ErrRecordNotFound) {
|
||||
log.Warn().
|
||||
Str("handler", "PollNetMap").
|
||||
Msgf("Ignoring request, cannot find machine with key %s", machineKey.String())
|
||||
ctx.String(http.StatusUnauthorized, "")
|
||||
|
||||
return
|
||||
}
|
||||
log.Error().
|
||||
Str("handler", "PollNetMap").
|
||||
Msgf("Failed to fetch machine from the database with Machine key: %s", machineKey.String())
|
||||
ctx.String(http.StatusInternalServerError, "")
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
ctx := context.WithValue(ctx.Request.Context(), machineNameContextKey, machine.Hostname)
|
||||
ctx := context.WithValue(context.Background(), machineNameContextKey, machine.Hostname)
|
||||
|
||||
ctx, cancel := context.WithCancel(ctx)
|
||||
defer cancel()
|
||||
@ -291,9 +293,8 @@ func (h *Headscale) PollNetMapStream(
|
||||
mapRequest,
|
||||
machine,
|
||||
)
|
||||
}
|
||||
|
||||
ctx.Stream(func(writer io.Writer) bool {
|
||||
for {
|
||||
log.Trace().
|
||||
Str("handler", "PollNetMapStream").
|
||||
Str("machine", machine.Hostname).
|
||||
@ -312,7 +313,7 @@ func (h *Headscale) PollNetMapStream(
|
||||
Str("channel", "pollData").
|
||||
Int("bytes", len(data)).
|
||||
Msg("Sending data received via pollData channel")
|
||||
_, err := writer.Write(data)
|
||||
_, err := w.Write(data)
|
||||
if err != nil {
|
||||
log.Error().
|
||||
Str("handler", "PollNetMapStream").
|
||||
@ -321,7 +322,7 @@ func (h *Headscale) PollNetMapStream(
|
||||
Err(err).
|
||||
Msg("Cannot write data")
|
||||
|
||||
return false
|
||||
break
|
||||
}
|
||||
log.Trace().
|
||||
Str("handler", "PollNetMapStream").
|
||||
@ -343,7 +344,7 @@ func (h *Headscale) PollNetMapStream(
|
||||
|
||||
// client has been removed from database
|
||||
// since the stream opened, terminate connection.
|
||||
return false
|
||||
break
|
||||
}
|
||||
now := time.Now().UTC()
|
||||
machine.LastSeen = &now
|
||||
@ -369,7 +370,7 @@ func (h *Headscale) PollNetMapStream(
|
||||
Msg("Machine entry in database updated successfully after sending pollData")
|
||||
}
|
||||
|
||||
return true
|
||||
break
|
||||
|
||||
case data := <-keepAliveChan:
|
||||
log.Trace().
|
||||
@ -378,7 +379,7 @@ func (h *Headscale) PollNetMapStream(
|
||||
Str("channel", "keepAlive").
|
||||
Int("bytes", len(data)).
|
||||
Msg("Sending keep alive message")
|
||||
_, err := writer.Write(data)
|
||||
_, err := w.Write(data)
|
||||
if err != nil {
|
||||
log.Error().
|
||||
Str("handler", "PollNetMapStream").
|
||||
@ -387,7 +388,7 @@ func (h *Headscale) PollNetMapStream(
|
||||
Err(err).
|
||||
Msg("Cannot write keep alive message")
|
||||
|
||||
return false
|
||||
break
|
||||
}
|
||||
log.Trace().
|
||||
Str("handler", "PollNetMapStream").
|
||||
@ -409,7 +410,7 @@ func (h *Headscale) PollNetMapStream(
|
||||
|
||||
// client has been removed from database
|
||||
// since the stream opened, terminate connection.
|
||||
return false
|
||||
break
|
||||
}
|
||||
now := time.Now().UTC()
|
||||
machine.LastSeen = &now
|
||||
@ -430,7 +431,7 @@ func (h *Headscale) PollNetMapStream(
|
||||
Msg("Machine updated successfully after sending keep alive")
|
||||
}
|
||||
|
||||
return true
|
||||
break
|
||||
|
||||
case <-updateChan:
|
||||
log.Trace().
|
||||
@ -460,7 +461,7 @@ func (h *Headscale) PollNetMapStream(
|
||||
Err(err).
|
||||
Msg("Could not get the map update")
|
||||
}
|
||||
_, err = writer.Write(data)
|
||||
_, err = w.Write(data)
|
||||
if err != nil {
|
||||
log.Error().
|
||||
Str("handler", "PollNetMapStream").
|
||||
@ -471,7 +472,7 @@ func (h *Headscale) PollNetMapStream(
|
||||
updateRequestsSentToNode.WithLabelValues(machine.Namespace.Name, machine.Hostname, "failed").
|
||||
Inc()
|
||||
|
||||
return false
|
||||
return
|
||||
}
|
||||
log.Trace().
|
||||
Str("handler", "PollNetMapStream").
|
||||
@ -499,7 +500,7 @@ func (h *Headscale) PollNetMapStream(
|
||||
|
||||
// client has been removed from database
|
||||
// since the stream opened, terminate connection.
|
||||
return false
|
||||
return
|
||||
}
|
||||
now := time.Now().UTC()
|
||||
|
||||
@ -529,9 +530,9 @@ func (h *Headscale) PollNetMapStream(
|
||||
Msgf("%s is up to date", machine.Hostname)
|
||||
}
|
||||
|
||||
return true
|
||||
return
|
||||
|
||||
case <-ctx.Request.Context().Done():
|
||||
case <-ctx.Done():
|
||||
log.Info().
|
||||
Str("handler", "PollNetMapStream").
|
||||
Str("machine", machine.Hostname).
|
||||
@ -550,7 +551,7 @@ func (h *Headscale) PollNetMapStream(
|
||||
|
||||
// client has been removed from database
|
||||
// since the stream opened, terminate connection.
|
||||
return false
|
||||
break
|
||||
}
|
||||
now := time.Now().UTC()
|
||||
machine.LastSeen = &now
|
||||
@ -564,9 +565,11 @@ func (h *Headscale) PollNetMapStream(
|
||||
Msg("Cannot update machine LastSeen")
|
||||
}
|
||||
|
||||
return false
|
||||
break
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
log.Info().Msgf("Closing poll loop to %s", machine.Hostname)
|
||||
}
|
||||
|
||||
func (h *Headscale) scheduledPollWorker(
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user