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143 lines
2.9 KiB
143 lines
2.9 KiB
package main
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import (
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"bytes"
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"fmt"
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"io"
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"net"
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"net/url"
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"os"
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"path/filepath"
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"sort"
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"github.com/h2non/filetype"
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)
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func buildDirList(request *url.URL, dirPath string) ([]byte, error) {
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var (
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b = &bytes.Buffer{}
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files []os.FileInfo
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numDirs int
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numFiles int
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)
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err := filepath.Walk(dirPath, func(path string, info os.FileInfo, err error) error {
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if err != nil {
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return err
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} else if path == dirPath {
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return nil
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}
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files = append(files, info)
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if info.IsDir() || info.Mode()&os.ModeSymlink != 0 {
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numDirs++
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} else {
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numFiles++
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}
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if info.IsDir() {
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return filepath.SkipDir
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}
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return nil
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})
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if err != nil {
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return nil, err
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}
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// List directories first
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sort.Slice(files, func(i, j int) bool {
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iDir := files[i].IsDir() || files[i].Mode()&os.ModeSymlink != 0
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jDir := files[j].IsDir() || files[j].Mode()&os.ModeSymlink != 0
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if iDir != jDir {
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return iDir
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}
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return i < j
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})
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fmt.Fprintf(b, "# %s%s", request.Path, newLine)
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if numDirs == 1 {
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b.Write([]byte("1 directory"))
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} else {
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fmt.Fprintf(b, "%d directories", numDirs)
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}
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b.Write([]byte(", "))
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if numDirs == 1 {
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b.Write([]byte("1 file"))
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} else {
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fmt.Fprintf(b, "%d files", numFiles)
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}
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b.Write([]byte(newLine + newLine))
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if request.Path != "/" {
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b.Write([]byte("=> ../ ../" + newLine + newLine))
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}
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for _, info := range files {
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fileName := info.Name()
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filePath := url.PathEscape(info.Name())
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if info.IsDir() || info.Mode()&os.ModeSymlink != 0 {
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fileName += "/"
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filePath += "/"
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}
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b.Write([]byte("=> " + fileName + " " + filePath + newLine))
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if info.IsDir() || info.Mode()&os.ModeSymlink != 0 {
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b.Write([]byte(newLine))
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continue
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}
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modified := "Never"
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if !info.ModTime().IsZero() {
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modified = info.ModTime().Format("2006-01-02 3:04 PM")
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}
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b.Write([]byte(modified + " - " + formatFileSize(info.Size()) + newLine + newLine))
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}
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return b.Bytes(), nil
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}
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func serveDirList(c net.Conn, serve *pathConfig, request *url.URL, dirPath string) int {
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dirList, err := buildDirList(request, dirPath)
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if err != nil {
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return writeStatus(c, statusTemporaryFailure)
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}
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writeSuccess(c, serve, geminiType, -1)
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c.Write(dirList)
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return statusSuccess
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}
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func serveFile(c net.Conn, serve *pathConfig, filePath string) {
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// Open file
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file, _ := os.Open(filePath)
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defer file.Close()
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// Read content type
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var (
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buf = make([]byte, 261)
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n int
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)
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contentType := config.Types[filepath.Ext(filePath)]
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if contentType == "" {
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n, _ = file.Read(buf)
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kind, err := filetype.Match(buf[:n])
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if err == nil && kind != filetype.Unknown && kind.MIME.Value != "" {
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contentType = kind.MIME.Value
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} else {
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contentType = plainType
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}
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}
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// Read file size
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size := int64(-1)
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info, err := file.Stat()
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if err == nil {
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size = info.Size()
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}
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// Write response header
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writeSuccess(c, serve, contentType, size)
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// Write file contents
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if n > 0 {
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c.Write(buf[:n])
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}
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io.Copy(c, file)
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}
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