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main.go
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main.go
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/*
* Copyright 2022 CloudWeGo 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 main
import (
"context"
"strings"
"github.com/cloudwego/hertz/pkg/app"
"github.com/cloudwego/hertz/pkg/app/server"
)
func main() {
h := server.Default(server.WithHostPorts("127.0.0.1:8080"))
h.LoadHTMLGlob("views/*")
prefix := "/public"
root := "./assets"
fs := &app.FS{Root: root, PathRewrite: getPathRewriter(prefix)}
h.StaticFS(prefix, fs)
h.GET("/", func(c context.Context, ctx *app.RequestContext) {
ctx.HTML(200, "index.html", nil)
})
h.Spin()
}
func getPathRewriter(prefix string) app.PathRewriteFunc {
// Cannot have an empty prefix
if prefix == "" {
prefix = "/"
}
// Prefix always start with a '/' or '*'
if prefix[0] != '/' {
prefix = "/" + prefix
}
// Is prefix a direct wildcard?
isStar := prefix == "/*"
// Is prefix a partial wildcard?
if strings.Contains(prefix, "*") {
isStar = true
prefix = strings.Split(prefix, "*")[0]
// Fix this later
}
prefixLen := len(prefix)
if prefixLen > 1 && prefix[prefixLen-1:] == "/" {
// /john/ -> /john
prefixLen--
prefix = prefix[:prefixLen]
}
return func(ctx *app.RequestContext) []byte {
path := ctx.Path()
if len(path) >= prefixLen {
if isStar && string(path[0:prefixLen]) == prefix {
path = append(path[0:0], '/')
} else {
path = path[prefixLen:]
if len(path) == 0 || path[len(path)-1] != '/' {
path = append(path, '/')
}
}
}
if len(path) > 0 && path[0] != '/' {
path = append([]byte("/"), path...)
}
return path
}
}