115 lines
2.2 KiB
Go
115 lines
2.2 KiB
Go
package main
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import (
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"fmt"
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"html/template"
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"net/http"
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"os"
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"path/filepath"
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"strings"
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"github.com/joho/godotenv"
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)
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// 定义静态文件根目录
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var rootPath string
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// FileInfo 包含文件的元数据信息
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type FileInfo struct {
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Name string
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Size string
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IsDir bool
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Href string
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}
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func main() {
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err := godotenv.Load()
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if err != nil {
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fmt.Println("Error loading .env file")
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return
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}
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rootPath = os.Getenv("FILE_PATH")
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http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
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dir := r.URL.Path[1:]
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dir = rootPath + "/" + dir
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dir = strings.Replace(dir, "\\", "/", -1)
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fileInfo, err := os.Stat(dir)
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if err != nil {
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//fmt.Println("File does not exist")
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} else if fileInfo.Mode().IsRegular() {
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file, _ := os.Open(dir)
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defer file.Close()
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http.ServeContent(w, r, fileInfo.Name(), fileInfo.ModTime(), file)
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} else {
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fileInfos, err := listDir(dir)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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tmpl, err := template.ParseFiles("templates/index.html")
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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tmpl.Execute(w, fileInfos)
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}
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})
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http.ListenAndServe(":"+os.Getenv("PORT"), nil)
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}
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func listDir(dir string) ([]FileInfo, error) {
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file, err := os.Open(dir)
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if err != nil {
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return nil, err
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}
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defer file.Close()
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names, err := file.Readdirnames(-1)
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if err != nil {
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return nil, err
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}
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var fileInfos []FileInfo
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for _, name := range names {
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fileInfo, err := os.Stat(filepath.Join(dir, name))
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if err != nil {
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return nil, err
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}
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Href := filepath.Join(dir, name)
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//Href = strings.Replace(Href, filepath.Join(rootPath), "", -1)
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size := fileInfo.Size()
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formattedSize := formatFileSize(size)
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fileInfos = append(fileInfos, FileInfo{
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Name: name,
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Size: formattedSize,
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IsDir: fileInfo.IsDir(),
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Href: Href,
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})
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}
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return fileInfos, nil
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}
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func formatFileSize(size int64) string {
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units := []string{"B", "KB", "MB", "GB"}
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var unitIndex int
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var fileSize float64
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for size > 1024 && unitIndex < len(units)-1 {
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fileSize = float64(size) / 1024
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size = size / 1024
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unitIndex++
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}
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fileSize = float64(size)
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return fmt.Sprintf("%.2f %s", fileSize, units[unitIndex])
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}
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