mirror of
https://gitee.com/johng/gf.git
synced 2024-11-30 19:27:46 +08:00
317 lines
8.9 KiB
Go
317 lines
8.9 KiB
Go
// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
|
||
//
|
||
// This Source Code Form is subject to the terms of the MIT License.
|
||
// If a copy of the MIT was not distributed with this file,
|
||
// You can obtain one at https://github.com/gogf/gf.
|
||
|
||
package ghttp
|
||
|
||
import (
|
||
"net/http"
|
||
"os"
|
||
"sort"
|
||
"strings"
|
||
|
||
"github.com/gogf/gf/text/gstr"
|
||
|
||
"github.com/gogf/gf/errors/gerror"
|
||
|
||
"github.com/gogf/gf/os/gres"
|
||
|
||
"github.com/gogf/gf/encoding/ghtml"
|
||
"github.com/gogf/gf/os/gfile"
|
||
"github.com/gogf/gf/os/gspath"
|
||
"github.com/gogf/gf/os/gtime"
|
||
)
|
||
|
||
// 服务静态文件信息
|
||
type staticServeFile struct {
|
||
file *gres.File // 资源文件
|
||
path string // 文件路径
|
||
dir bool // 是否目录
|
||
}
|
||
|
||
// 默认HTTP Server处理入口，http包底层默认使用了gorutine异步处理请求，所以这里不再异步执行
|
||
func (s *Server) defaultHttpHandle(w http.ResponseWriter, r *http.Request) {
|
||
s.handleRequest(w, r)
|
||
}
|
||
|
||
// 执行处理HTTP请求，
|
||
// 首先，查找是否有对应域名的处理接口配置；
|
||
// 其次，如果没有对应的自定义处理接口配置，那么走默认的域名处理接口配置；
|
||
// 最后，如果以上都没有找到处理接口，那么进行文件处理；
|
||
func (s *Server) handleRequest(w http.ResponseWriter, r *http.Request) {
|
||
// 重写规则判断
|
||
if len(s.config.Rewrites) > 0 {
|
||
if rewrite, ok := s.config.Rewrites[r.URL.Path]; ok {
|
||
r.URL.Path = rewrite
|
||
}
|
||
}
|
||
|
||
// URI默认值
|
||
if r.URL.Path == "" {
|
||
r.URL.Path = "/"
|
||
}
|
||
|
||
// 去掉末尾的"/"号
|
||
if r.URL.Path != "/" {
|
||
for r.URL.Path[len(r.URL.Path)-1] == '/' {
|
||
r.URL.Path = r.URL.Path[:len(r.URL.Path)-1]
|
||
}
|
||
}
|
||
|
||
// 创建请求处理对象
|
||
request := newRequest(s, r, w)
|
||
|
||
defer func() {
|
||
// 设置请求完成时间
|
||
request.LeaveTime = gtime.Microsecond()
|
||
// error log
|
||
if request.error != nil {
|
||
s.handleErrorLog(request.error, request)
|
||
} else {
|
||
if exception := recover(); exception != nil {
|
||
request.Response.WriteStatus(http.StatusInternalServerError)
|
||
s.handleErrorLog(gerror.Newf("%v", exception), request)
|
||
}
|
||
}
|
||
// access log
|
||
s.handleAccessLog(request)
|
||
}()
|
||
|
||
// ============================================================
|
||
// 优先级控制:
|
||
// 静态文件 > 动态服务 > 静态目录
|
||
// ============================================================
|
||
|
||
serveFile := (*staticServeFile)(nil)
|
||
// 优先执行静态文件检索(检测是否存在对应的静态文件，包括index files处理)
|
||
if s.config.FileServerEnabled {
|
||
serveFile = s.searchStaticFile(r.URL.Path)
|
||
if serveFile != nil {
|
||
request.isFileRequest = true
|
||
}
|
||
}
|
||
|
||
// 动态服务检索
|
||
request.handlers, request.hasHookHandler, request.hasServeHandler = s.getHandlersWithCache(request)
|
||
|
||
// 判断最终对该请求提供的服务方式
|
||
if serveFile != nil && serveFile.dir && request.hasServeHandler {
|
||
request.isFileRequest = false
|
||
}
|
||
|
||
// 事件 - BeforeServe
|
||
s.callHookHandler(HOOK_BEFORE_SERVE, request)
|
||
|
||
// 执行静态文件服务/回调控制器/执行对象/方法
|
||
if !request.IsExited() {
|
||
if request.isFileRequest {
|
||
// 静态服务
|
||
s.serveFile(request, serveFile)
|
||
} else {
|
||
if len(request.handlers) > 0 {
|
||
// 动态服务
|
||
request.Middleware.Next()
|
||
} else {
|
||
if serveFile != nil && serveFile.dir {
|
||
// 静态目录
|
||
s.serveFile(request, serveFile)
|
||
} else {
|
||
if len(request.Response.Header()) == 0 &&
|
||
request.Response.Status == 0 &&
|
||
request.Response.BufferLength() == 0 {
|
||
request.Response.WriteStatus(http.StatusNotFound)
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
// 事件 - AfterServe
|
||
if !request.IsExited() {
|
||
s.callHookHandler(HOOK_AFTER_SERVE, request)
|
||
}
|
||
|
||
// 事件 - BeforeOutput
|
||
if !request.IsExited() {
|
||
s.callHookHandler(HOOK_BEFORE_OUTPUT, request)
|
||
}
|
||
|
||
// 状态码处理：如果没有产生异常状态，那么设置返回状态为200
|
||
if request.Response.Status == 0 {
|
||
if request.Middleware.served || request.Response.buffer.Len() > 0 {
|
||
request.Response.Status = http.StatusOK
|
||
} else {
|
||
request.Response.WriteStatus(http.StatusNotFound)
|
||
}
|
||
}
|
||
|
||
// 设置Session Id到Cookie中
|
||
if request.Session.IsDirty() && request.Session.Id() != request.GetSessionId() {
|
||
request.Cookie.SetSessionId(request.Session.Id())
|
||
}
|
||
// 输出Cookie
|
||
request.Cookie.Output()
|
||
// 输出缓冲区
|
||
request.Response.Output()
|
||
// 事件 - AfterOutput
|
||
if !request.IsExited() {
|
||
s.callHookHandler(HOOK_AFTER_OUTPUT, request)
|
||
}
|
||
// 关闭当前Session，并更新会话超时时间
|
||
request.Session.Close()
|
||
}
|
||
|
||
// 查找静态文件的绝对路径
|
||
func (s *Server) searchStaticFile(uri string) *staticServeFile {
|
||
// 优先查找URI映射关系
|
||
var file *gres.File
|
||
var path string
|
||
var dir bool
|
||
if len(s.config.StaticPaths) > 0 {
|
||
for _, item := range s.config.StaticPaths {
|
||
if len(uri) >= len(item.prefix) && strings.EqualFold(item.prefix, uri[0:len(item.prefix)]) {
|
||
// 防止类似 /static/style 映射到 /static/style.css 的情况
|
||
if len(uri) > len(item.prefix) && uri[len(item.prefix)] != '/' {
|
||
continue
|
||
}
|
||
// 优先检索资源管理器
|
||
file = gres.GetWithIndex(item.path+uri[len(item.prefix):], s.config.IndexFiles)
|
||
if file != nil {
|
||
return &staticServeFile{
|
||
file: file,
|
||
dir: file.FileInfo().IsDir(),
|
||
}
|
||
}
|
||
// 其次检索文件系统
|
||
path, dir = gspath.Search(item.path, uri[len(item.prefix):], s.config.IndexFiles...)
|
||
if path != "" {
|
||
return &staticServeFile{
|
||
path: path,
|
||
dir: dir,
|
||
}
|
||
}
|
||
|
||
}
|
||
}
|
||
}
|
||
// 其次查找root和search path
|
||
if len(s.config.SearchPaths) > 0 {
|
||
for _, p := range s.config.SearchPaths {
|
||
// 优先检索资源管理器
|
||
file = gres.GetWithIndex(p+uri, s.config.IndexFiles)
|
||
if file != nil {
|
||
return &staticServeFile{
|
||
file: file,
|
||
dir: file.FileInfo().IsDir(),
|
||
}
|
||
}
|
||
// 其次检索文件系统
|
||
if path, dir = gspath.Search(p, uri, s.config.IndexFiles...); path != "" {
|
||
return &staticServeFile{
|
||
path: path,
|
||
dir: dir,
|
||
}
|
||
}
|
||
}
|
||
}
|
||
// 最后通过资源对象+URI进行文件检索
|
||
if len(s.config.StaticPaths) == 0 && len(s.config.SearchPaths) == 0 {
|
||
if file = gres.GetWithIndex(uri, s.config.IndexFiles); file != nil {
|
||
return &staticServeFile{
|
||
file: file,
|
||
dir: file.FileInfo().IsDir(),
|
||
}
|
||
}
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// http server静态文件处理，path可以为相对路径也可以为绝对路径
|
||
func (s *Server) serveFile(r *Request, f *staticServeFile, allowIndex ...bool) {
|
||
// 使用资源文件
|
||
if f.file != nil {
|
||
if f.dir {
|
||
if s.config.IndexFolder || (len(allowIndex) > 0 && allowIndex[0]) {
|
||
s.listDir(r, f.file)
|
||
} else {
|
||
r.Response.WriteStatus(http.StatusForbidden)
|
||
}
|
||
} else {
|
||
info := f.file.FileInfo()
|
||
http.ServeContent(r.Response.Writer, r.Request, info.Name(), info.ModTime(), f.file)
|
||
}
|
||
return
|
||
}
|
||
// 使用磁盘文件
|
||
file, err := os.Open(f.path)
|
||
if err != nil {
|
||
r.Response.WriteStatus(http.StatusForbidden)
|
||
return
|
||
}
|
||
defer file.Close()
|
||
|
||
// Clear the response buffer before file serving.
|
||
// It ignores all custom buffer content and uses the file content.
|
||
r.Response.ClearBuffer()
|
||
|
||
info, _ := file.Stat()
|
||
if info.IsDir() {
|
||
if s.config.IndexFolder || (len(allowIndex) > 0 && allowIndex[0]) {
|
||
s.listDir(r, file)
|
||
} else {
|
||
r.Response.WriteStatus(http.StatusForbidden)
|
||
}
|
||
} else {
|
||
http.ServeContent(r.Response.Writer.RawWriter(), r.Request, info.Name(), info.ModTime(), file)
|
||
}
|
||
}
|
||
|
||
// 显示目录列表
|
||
func (s *Server) listDir(r *Request, f http.File) {
|
||
files, err := f.Readdir(-1)
|
||
if err != nil {
|
||
r.Response.WriteStatus(http.StatusInternalServerError, "Error reading directory")
|
||
return
|
||
}
|
||
sort.Slice(files, func(i, j int) bool { return files[i].Name() < files[j].Name() })
|
||
if r.Response.Header().Get("Content-Type") == "" {
|
||
r.Response.Header().Set("Content-Type", "text/html; charset=utf-8")
|
||
}
|
||
r.Response.Write(`<html>`)
|
||
r.Response.Write(`<head>`)
|
||
r.Response.Write(`<style>`)
|
||
r.Response.Write(`body {font-family:Consolas, Monaco, "Andale Mono", "Ubuntu Mono", monospace;}`)
|
||
r.Response.Write(`</style>`)
|
||
r.Response.Write(`</head>`)
|
||
r.Response.Write(`<body>`)
|
||
r.Response.Writef(`<h1>Index of %s</h1>`, r.URL.Path)
|
||
r.Response.Writef(`<hr />`)
|
||
r.Response.Write(`<table>`)
|
||
if r.URL.Path != "/" {
|
||
r.Response.Write(`<tr>`)
|
||
r.Response.Writef(`<td><a href="%s">..</a></td>`, gfile.Dir(r.URL.Path))
|
||
r.Response.Write(`</tr>`)
|
||
}
|
||
name := ""
|
||
size := ""
|
||
prefix := gstr.TrimRight(r.URL.Path, "/")
|
||
for _, file := range files {
|
||
name = file.Name()
|
||
size = gfile.FormatSize(file.Size())
|
||
if file.IsDir() {
|
||
name += "/"
|
||
size = "-"
|
||
}
|
||
r.Response.Write(`<tr>`)
|
||
r.Response.Writef(`<td><a href="%s/%s">%s</a></td>`, prefix, name, ghtml.SpecialChars(name))
|
||
r.Response.Writef(`<td style="width:300px;text-align:center;">%s</td>`, gtime.New(file.ModTime()).ISO8601())
|
||
r.Response.Writef(`<td style="width:80px;text-align:right;">%s</td>`, size)
|
||
r.Response.Write(`</tr>`)
|
||
}
|
||
r.Response.Write(`</table>`)
|
||
r.Response.Write(`</body>`)
|
||
r.Response.Write(`</html>`)
|
||
}
|