mirror of
https://github.com/linka-cloud/grpc.git
synced 2024-11-22 10:56:26 +00:00
56 lines
1.4 KiB
Go
56 lines
1.4 KiB
Go
|
// Copyright 2022 Linka Cloud All rights reserved.
|
||
|
|
//
|
||
|
|
// 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 react
|
||
|
|
|
||
|
|
import (
|
||
|
|
"embed"
|
||
|
|
"io/fs"
|
||
|
|
"net/http"
|
||
|
|
"net/http/httputil"
|
||
|
|
"net/url"
|
||
|
|
"os"
|
||
|
|
"strings"
|
||
|
|
)
|
||
|
|
|
||
|
|
func NewHandler(dir embed.FS, subpath string) (http.Handler, error) {
|
||
|
|
if e := os.Getenv("REACT_ENDPOINT"); e != "" {
|
||
|
|
return newProxy(e)
|
||
|
|
}
|
||
|
|
return newStatic(dir, subpath)
|
||
|
|
}
|
||
|
|
|
||
|
|
func newStatic(dir embed.FS, subpath string) (http.Handler, error) {
|
||
|
|
s, err := fs.Sub(dir, subpath)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
fsrv := http.FileServer(http.FS(s))
|
||
|
|
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||
|
|
if _, err := fs.Stat(s, strings.TrimPrefix(r.URL.Path, "/")); err != nil {
|
||
|
|
r.URL.Path = "/"
|
||
|
|
}
|
||
|
|
fsrv.ServeHTTP(w, r)
|
||
|
|
}), nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func newProxy(endpoint string) (http.Handler, error) {
|
||
|
|
u, err := url.Parse(endpoint)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
p := httputil.NewSingleHostReverseProxy(u)
|
||
|
|
return p, nil
|
||
|
|
}
|