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Beego/staticfile.go
2015-02-26 23:34:43 +08:00

122 lines
3.4 KiB
Go

// Copyright 2014 beego Author. 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 beego
import (
"net/http"
"os"
"path"
"strconv"
"strings"
"github.com/astaxie/beego/context"
"github.com/astaxie/beego/utils"
)
func serverStaticRouter(ctx *context.Context) {
if ctx.Input.Method() != "GET" && ctx.Input.Method() != "HEAD" {
return
}
requestPath := path.Clean(ctx.Input.Request.URL.Path)
i := 0
for prefix, staticDir := range StaticDir {
if len(prefix) == 0 {
continue
}
if requestPath == "/favicon.ico" || requestPath == "/robots.txt" {
file := path.Join(staticDir, requestPath)
if utils.FileExists(file) {
http.ServeFile(ctx.ResponseWriter, ctx.Request, file)
return
} else {
i++
if i == len(StaticDir) {
http.NotFound(ctx.ResponseWriter, ctx.Request)
return
} else {
continue
}
}
}
if strings.HasPrefix(requestPath, prefix) {
if len(requestPath) > len(prefix) && requestPath[len(prefix)] != '/' {
continue
}
file := path.Join(staticDir, requestPath[len(prefix):])
finfo, err := os.Stat(file)
if err != nil {
if RunMode == "dev" {
Warn(err)
}
http.NotFound(ctx.ResponseWriter, ctx.Request)
return
}
//if the request is dir and DirectoryIndex is false then
if finfo.IsDir() {
if !DirectoryIndex {
exception("403", ctx)
return
} else if ctx.Input.Request.URL.Path[len(ctx.Input.Request.URL.Path)-1] != '/' {
http.Redirect(ctx.ResponseWriter, ctx.Request, ctx.Input.Request.URL.Path+"/", 302)
return
}
} else if strings.HasSuffix(requestPath, "/index.html") {
file := path.Join(staticDir, requestPath)
if utils.FileExists(file) {
http.ServeFile(ctx.ResponseWriter, ctx.Request, file)
return
}
}
//This block obtained from (https://github.com/smithfox/beego) - it should probably get merged into astaxie/beego after a pull request
isStaticFileToCompress := false
if StaticExtensionsToGzip != nil && len(StaticExtensionsToGzip) > 0 {
for _, statExtension := range StaticExtensionsToGzip {
if strings.HasSuffix(strings.ToLower(file), strings.ToLower(statExtension)) {
isStaticFileToCompress = true
break
}
}
}
if isStaticFileToCompress {
var contentEncoding string
if EnableGzip {
contentEncoding = getAcceptEncodingZip(ctx.Request)
}
memzipfile, err := openMemZipFile(file, contentEncoding)
if err != nil {
return
}
if contentEncoding == "gzip" {
ctx.Output.Header("Content-Encoding", "gzip")
} else if contentEncoding == "deflate" {
ctx.Output.Header("Content-Encoding", "deflate")
} else {
ctx.Output.Header("Content-Length", strconv.FormatInt(finfo.Size(), 10))
}
http.ServeContent(ctx.ResponseWriter, ctx.Request, file, finfo.ModTime(), memzipfile)
} else {
http.ServeFile(ctx.ResponseWriter, ctx.Request, file)
}
return
}
}
}