rewrite server module

2026-01-16 16:08:10 -05:00
parent bfb5725880
commit 7e3af14059
6 changed files with 437 additions and 8 deletions
--- a/modules/server/archive.go
+++ b/modules/server/archive.go
@@ -0,0 +1,120 @@
+package server
+
+import (
+	"fmt"
+	"net/http"
+	"os"
+	"path"
+	"path/filepath"
+	"sort"
+	"strings"
+	"text/template"
+	"time"
+)
+
+/* this indexes and generate the page for viewing the archive directory */
+func generateArchiveIndex(fsPath string, urlPath string) (string, error) {
+	info, err := os.Stat(fsPath)
+	if err != nil {
+		return "", err
+	}
+	if !info.IsDir() {
+		return "", fmt.Errorf("not a directory")
+	}
+	ents, err := os.ReadDir(fsPath)
+	if err != nil {
+		return "", err
+	}
+	type entryInfo struct {
+		name  string
+		isDir bool
+		href  string
+		size  int64
+		mod   time.Time
+	}
+	var list []entryInfo
+	for _, e := range ents {
+		n := e.Name()
+		full := filepath.Join(fsPath, n)
+		st, err := os.Stat(full)
+		if err != nil {
+			continue
+		}
+		isd := st.IsDir()
+		displayName := n
+		if isd {
+			displayName = n + "/"
+		}
+		href := path.Join(urlPath, n)
+		if isd && !strings.HasSuffix(href, "/") {
+			href = href + "/"
+		}
+		size := int64(-1)
+		if !isd {
+			size = st.Size()
+		}
+		list = append(list, entryInfo{name: displayName, isDir: isd, href: href, size: size, mod: st.ModTime()})
+	}
+	sort.Slice(list, func(i, j int) bool {
+		if list[i].isDir != list[j].isDir {
+			return list[i].isDir
+		}
+		return strings.ToLower(list[i].name) < strings.ToLower(list[j].name)
+	})
+
+	urlPath = strings.TrimPrefix(urlPath, "/archive")
+
+	var b strings.Builder
+
+	b.WriteString("<html>\n<head><title>Index of ")
+	b.WriteString(template.HTMLEscapeString(urlPath))
+	b.WriteString("</title></head>\n<body>\n<h1>Index of ")
+	b.WriteString(template.HTMLEscapeString(urlPath))
+	b.WriteString("</h1><hr><pre>")
+
+	if urlPath != "/" {
+		b.WriteString(
+			`<a href="/archive` +
+				template.HTMLEscapeString(path.Dir(strings.TrimSuffix(urlPath, "/"))) +
+				`">../</a>` + "\n",
+		)
+	} else {
+		b.WriteString(
+			`<a href="/">../</a>` + "\n",
+		)
+	}
+
+	nameCol := 50
+	for _, ei := range list {
+		escapedName := template.HTMLEscapeString(ei.name)
+		dateStr := ei.mod.Local().Format("02-Jan-2006 15:04")
+		var sizeStr string
+		if ei.isDir {
+			sizeStr = "-"
+		} else {
+			sizeStr = fmt.Sprintf("%d", ei.size)
+		}
+		spaces := 1
+		if len(escapedName) < nameCol {
+			spaces = nameCol - len(escapedName)
+		}
+		line := `<a href="` + template.HTMLEscapeString(ei.href) + `">` + escapedName + `</a>` + strings.Repeat(" ", spaces) + dateStr + strings.Repeat(" ", 19-len(sizeStr)) + sizeStr + "\n"
+		b.WriteString(line)
+	}
+	b.WriteString("</pre><hr></body>\n</html>")
+	return b.String(), nil
+}
+
+/* helper to read the archive files */
+func readArchive(w http.ResponseWriter, route string) error {
+	fsPath := "." + route
+	if info, err := os.Stat(fsPath); err == nil && info.IsDir() {
+		if page, err := generateArchiveIndex(fsPath, route); err == nil {
+			w.Write([]byte(page))
+			return nil
+		} else {
+			return err
+		}
+	}
+	return nil
+}