init

2023-12-09 23:15:51 +08:00 · 2023-12-09 23:15:51 +08:00 · f345ecb7d6
commit f345ecb7d6
4 changed files with 108 additions and 0 deletions
--- a/README.md
+++ b/README.md
@ -0,0 +1,3 @@
+## 简介
+
+一个简单的文件浏览服务
--- a/go.mod
+++ b/go.mod
@ -0,0 +1,3 @@
+module filebrowser
+
+go 1.21.3
--- a/index.html
+++ b/index.html
@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+</head>
+<body>
+    {{ if .Err }}
+        <div style="color: red;">{{.Err}}</div>
+    {{ else }}
+        <ul>
+        {{ range .Entries }}
+            <li>
+            {{ if .IsDir }}
+                <a href="{{.Name}}/">{{.Name}}/</a>
+            {{ else }}
+                <a href="{{.Name}}">{{.Name}}</a>
+            {{ end }}
+            </li>
+        {{ end }}
+        </ul>
+    {{ end }}
+</body>
+</html>
--- a/main.go
+++ b/main.go
@ -0,0 +1,77 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+	"text/template"
+
+	_ "embed"
+)
+
+type Entry struct {
+	Name  string
+	IsDir bool
+}
+
+type Result struct {
+	Err     string
+	Entries []Entry
+}
+
+//go:embed index.html
+var index string
+
+var tpl = template.Must(template.New("index.html").Parse(index))
+
+func Render(w http.ResponseWriter, data interface{}) {
+	w.Header().Set("Content-Type", "text/html;charset=utf8")
+	if err := tpl.Execute(w, data); err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+}
+
+func View(w http.ResponseWriter, r *http.Request) {
+	log.Println(r.URL.Path)
+
+	path := filepath.Join(*dir, filepath.Clean(r.URL.Path))
+
+	if !strings.HasSuffix(r.URL.Path, "/") {
+		w.Header().Add("Content-Disposition", fmt.Sprintf("attachment;filename=%s", filepath.Base(path)))
+		http.ServeFile(w, r, path)
+		return
+	}
+
+	entries, err := os.ReadDir(path)
+	if err != nil {
+		Render(w, &Result{Err: err.Error()})
+		return
+	}
+
+	items := make([]Entry, 0)
+	for _, entry := range entries {
+		items = append(items, Entry{
+			Name:  entry.Name(),
+			IsDir: entry.IsDir(),
+		})
+	}
+	Render(w, &Result{Entries: items})
+}
+
+var (
+	dir    = flag.String("dir", "./", "server file directory")
+	listen = flag.String("listen", ":3000", "listen address")
+)
+
+func main() {
+	flag.Parse()
+
+	http.HandleFunc("/", View)
+	log.Printf("server listen at %s", *listen)
+	log.Fatal(http.ListenAndServe(*listen, nil))
+}