discoveryserver/http/http.go

75 lines
2.5 KiB
Go

// Copyright 2019 The etcd Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package http
import (
"context"
"net/http"
"os"
"go.etcd.io/discoveryserver/handlers"
"go.etcd.io/discoveryserver/metrics"
gorillaHandlers "github.com/gorilla/handlers"
"github.com/gorilla/mux"
"github.com/prometheus/client_golang/prometheus/promhttp"
)
func Setup(ctx context.Context, etcdHost, discHost string) *handlers.State {
handler, st := RegisterHandlers(ctx, etcdHost, discHost)
logH := gorillaHandlers.LoggingHandler(os.Stdout, handler)
http.Handle("/", logH)
http.Handle("/metrics", promhttp.HandlerFor(metrics.Registry, promhttp.HandlerOpts{}))
return st
}
func RegisterHandlers(ctx context.Context, etcdHost, discHost string) (http.Handler, *handlers.State) {
st := handlers.Setup(etcdHost, discHost)
r := mux.NewRouter()
r.HandleFunc("/", handlers.HomeHandler)
r.Handle("/new", &handlers.ContextAdapter{
Ctx: ctx,
Handler: handlers.With(handlers.ContextHandlerFunc(handlers.NewTokenHandler), st),
})
r.Handle("/health", &handlers.ContextAdapter{
Ctx: ctx,
Handler: handlers.With(handlers.ContextHandlerFunc(handlers.HealthHandler), st),
})
r.HandleFunc("/robots.txt", handlers.RobotsHandler)
// Only allow exact tokens with GETs and PUTs
r.Handle("/{token:[a-f0-9]{32}}", &handlers.ContextAdapter{
Ctx: ctx,
Handler: handlers.With(handlers.ContextHandlerFunc(handlers.TokenHandler), st),
}).Methods("GET", "PUT")
r.Handle("/{token:[a-f0-9]{32}}/", &handlers.ContextAdapter{
Ctx: ctx,
Handler: handlers.With(handlers.ContextHandlerFunc(handlers.TokenHandler), st),
}).Methods("GET", "PUT")
r.Handle("/{token:[a-f0-9]{32}}/{machine}", &handlers.ContextAdapter{
Ctx: ctx,
Handler: handlers.With(handlers.ContextHandlerFunc(handlers.TokenHandler), st),
}).Methods("GET", "PUT", "DELETE")
r.Handle("/{token:[a-f0-9]{32}}/_config/size", &handlers.ContextAdapter{
Ctx: ctx,
Handler: handlers.With(handlers.ContextHandlerFunc(handlers.TokenHandler), st),
}).Methods("GET")
return r, st
}