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OneAuth/oa/builtin/webdav/dir_render.go

109 lines
2.9 KiB
Go

//
// dir_render.go
// Copyright (C) 2024 veypi <i@veypi.com>
// 2024-10-18 19:35
// Distributed under terms of the GPL license.
//
package webdav
import (
"embed"
"fmt"
"html/template"
"io/fs"
"net/http"
"net/url"
"strings"
"github.com/veypi/utils/logv"
)
type anyDirs interface {
len() int
name(i int) string
isDir(i int) bool
}
type fileInfoDirs []fs.FileInfo
func (d fileInfoDirs) len() int { return len(d) }
func (d fileInfoDirs) isDir(i int) bool { return d[i].IsDir() }
func (d fileInfoDirs) name(i int) string { return d[i].Name() }
type dirEntryDirs []fs.DirEntry
func (d dirEntryDirs) len() int { return len(d) }
func (d dirEntryDirs) isDir(i int) bool { return d[i].IsDir() }
func (d dirEntryDirs) name(i int) string { return d[i].Name() }
//go:embed dir.html
var dirTemplate embed.FS // 嵌入文件系统
func size2Label(s int64) string {
if s < 1024 {
return fmt.Sprintf("%d B", s)
} else if s < 1048576 {
return fmt.Sprintf("%d KB", s/1024)
} else if s < 1073741824 {
return fmt.Sprintf("%d MB", s/1024/1024)
} else {
return fmt.Sprintf("%d MB", s/1024/1024/1024)
}
}
func dirList(w http.ResponseWriter, r *http.Request, f File, rootPath string) {
// Prefer to use ReadDir instead of Readdir,
// because the former doesn't require calling
// Stat on every entry of a directory on Unix.
var err error
defer func() {
if e := recover(); e != nil {
err = fmt.Errorf("%v", e)
}
if err != nil {
logv.Warn().Msgf("http: error reading directory: %v", err)
http.Error(w, "Error reading directory", http.StatusInternalServerError)
}
}()
dir_count := 0
f_count := 0
var file_bytes int64
files := make([][4]any, 0, 5)
dirs := make([][4]any, 0, 5)
if d, ok := f.(fs.ReadDirFile); ok {
for _, item := range logv.AssertFuncErr(d.ReadDir(-1)) {
if item.IsDir() {
name := item.Name() + "/"
dir_count += 1
fstat, _ := item.Info()
furl := url.URL{Path: name}
dirs = append(dirs, [4]any{name, furl.String(), "-----", fstat.ModTime().UTC()})
} else {
name := item.Name()
f_count += 1
fstat, _ := item.Info()
file_bytes += fstat.Size()
furl := url.URL{Path: name}
files = append(files, [4]any{name, furl.String(), size2Label(fstat.Size()), fstat.ModTime().UTC()})
}
}
} else {
for _, item := range logv.AssertFuncErr(d.ReadDir(-1)) {
name := item.Name()
f_count += 1
fstat, _ := item.Info()
file_bytes += fstat.Size()
furl := url.URL{Path: name}
files = append(files, [4]any{name, furl.String(), size2Label(fstat.Size()), fstat.ModTime().UTC()})
}
}
dirBody := logv.AssertFuncErr(dirTemplate.ReadFile("dir.html"))
w.Header().Set("Content-Type", "text/html; charset=utf-8")
tpl := logv.AssertFuncErr(template.New("").Parse(string(dirBody)))
logv.AssertError(tpl.Execute(w, map[string]any{"files": files, "dirs": dirs, "path": strings.Split(rootPath, "/"), "cdir": dir_count, "cfile": f_count, "size": size2Label(file_bytes)}))
}