initial commit

This commit is contained in:
2025-09-12 16:18:15 +03:00
commit 20555c23a4
4 changed files with 356 additions and 0 deletions

3
go.mod Normal file
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module downloads-manager
go 1.24.6

190
main.go Normal file
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package main
import (
"flag"
"fmt"
"html/template"
"io"
"log"
"net/http"
"os"
"path"
"slices"
"strings"
"time"
)
type Entry struct {
IsDir bool
Name string
Path string
ModifiedAt string
}
func serveFile(w http.ResponseWriter, r *http.Request, filePath string) error {
imgFormats := []string{".png", ".jpeg", ".jpg", ".bmp", ".svg", ".gif", ".avif"}
videoFormats := []string{".mp4", ".webm"}
for _, format := range imgFormats {
if strings.HasSuffix(filePath, format) {
http.ServeFile(w, r, filePath)
return nil
}
}
for _, format := range videoFormats {
if strings.HasSuffix(filePath, format) {
http.ServeFile(w, r, filePath)
return nil
}
}
if strings.HasSuffix(filePath, ".pdf") {
http.ServeFile(w, r, filePath)
return nil
}
f, err := os.OpenFile(filePath, os.O_RDONLY, 0644)
if err != nil {
return err
}
defer f.Close()
data, err := io.ReadAll(f)
if err != nil {
return err
}
w.Header().Set("Content-Type", "text/plain")
w.Write(data)
return nil
}
var (
directory string
)
func main() {
flag.StringVar(&directory, "dir", "./", "directory to list files from")
flag.Parse()
tmpl := template.Must(template.ParseGlob("./views/**"))
mux := http.NewServeMux()
mux.HandleFunc("GET /", func(w http.ResponseWriter, r *http.Request) {
sortValue := r.URL.Query().Get("sort")
if sortValue == "" {
sortValue = "oldest"
}
directoriesFirst := r.URL.Query().Has("directoriesFirst")
suffix := r.URL.Path
dirPath := path.Join(directory, suffix)
stat, err := os.Stat(dirPath)
if err != nil {
http.Error(w, err.Error(), 500)
return
}
if !stat.IsDir() {
err = serveFile(w, r, dirPath)
if err != nil {
http.Error(w, err.Error(), 500)
}
return
}
files, err := os.ReadDir(dirPath)
if err != nil {
http.Error(w, err.Error(), 500)
return
}
entries := []Entry{}
for _, file := range files {
info, err := file.Info()
if err != nil {
fmt.Printf("error reading info for file %s: %v\n", file.Name(), err)
continue
}
entries = append(entries, Entry{
IsDir: file.IsDir(),
Name: file.Name(),
Path: path.Join(suffix, file.Name()),
ModifiedAt: info.ModTime().Format(time.DateTime),
})
}
slices.SortFunc(entries, func(a, b Entry) int {
if directoriesFirst {
if a.IsDir && !b.IsDir {
return -1
}
if b.IsDir && !a.IsDir {
return 1
}
}
t1, err := time.Parse(time.DateTime, a.ModifiedAt)
t2, err := time.Parse(time.DateTime, b.ModifiedAt)
if err != nil {
return 0
}
switch sortValue {
case "oldest":
return t1.Compare(t2)
case "newest":
return t2.Compare(t1)
default:
return 0
}
})
tmpl.ExecuteTemplate(w, "index.html", struct {
Entries []Entry
}{entries})
})
mux.HandleFunc("POST /delete", func(w http.ResponseWriter, r *http.Request) {
if err := r.ParseForm(); err != nil {
http.Error(w, err.Error(), 500)
return
}
files := []string{}
for k, v := range r.Form {
if k == "files" {
files = v
}
}
for _, filePath := range files {
fullPath := path.Join(directory, filePath)
stat, err := os.Stat(fullPath)
if err != nil {
continue
}
if stat.IsDir() {
continue // for now
}
if err := os.Remove(fullPath); err != nil {
fmt.Printf("couldn't delete file %s: %v\n", fullPath, err)
}
}
http.Redirect(w, r, "/", http.StatusFound)
})
if err := http.ListenAndServe(":5000", mux); err != nil {
log.Fatalf("failed to start http server: %v\n", err)
}
}

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readme.md Normal file
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# downloads-manager
Main feature is to list files and directories inside ~/Downloads folder and show each one's last modification date, user can select files to delete

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views/index.html Normal file
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<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Downloads Manager</title>
<style>
.container {
max-width: 1920px;
width: 100%;
margin: 0 auto;
}
.title {
text-align: center;
}
.header {
max-width: 900px;
width: 100%;
margin: 24px auto;
display: flex;
justify-content: space-between;
align-items: center;
gap: 8px;
}
#delete-form {
max-width: 900px;
width: 100%;
margin: 0 auto;
}
.list {
display: flex;
flex-direction: column;
gap: 12px;
padding: 0;
}
.item {
width: 100%;
display: flex;
justify-content: space-between;
align-items: center;
gap: 16px;
padding: 4px;
}
.item:hover {
background-color: #aaa;
}
.item a {
all: unset;
cursor: pointer;
color: #000;
}
.item_directory a {
color: blue;
}
.item__left {
display: flex;
align-items: center;
gap: 6px;
}
.submit-btn {
width: 100%;
border: none;
background-color: #b00420;
color: #fff;
cursor: pointer;
padding: 12px;
border-radius: 6px;
}
</style>
</head>
<body>
<div class="container">
<h1 class="title">Downloads Manager</h1>
<div class="header">
<div>
<label>
<input type="checkbox" name="directories-first" />
Directories first
</label>
</div>
<div>
<select name="sort">
<option value="oldest" selected>Oldest</option>
<option value="newest">Newest</option>
</select>
</div>
</div>
<form method="post" action="/delete" id="delete-form">
<ul class="list">
{{range .Entries}}
<li class="item {{if .IsDir}}item_directory{{else}}item_file{{end}}">
<div class="item__left">
<input type="checkbox" name="files" value="{{.Path}}" />
<a href="{{.Path}}">{{.Name}}</a>
</div>
<span>{{.ModifiedAt}}</span>
</li>
{{end}}
</ul>
<button type="submit" class="submit-btn">Delete selected files</button>
<script>
const deleteForm = document.querySelector("form#delete-form");
deleteForm.addEventListener("submit", (e) => {
const ok = confirm("are you sure?");
if (!ok) {
e.preventDefault();
return;
}
});
const directoriesCheckbox = document.querySelector(
'input[name="directories-first"]',
);
const sortSelect = document.querySelector('select[name="sort"]');
directoriesCheckbox.addEventListener("change", (e) => {
const params = new URLSearchParams(location.search);
if (e.target.checked) {
params.set("directoriesFirst", "");
} else {
params.delete("directoriesFirst");
}
location.search = params.toString();
});
sortSelect.addEventListener("change", (e) => {
const params = new URLSearchParams(location.search);
params.set("sort", e.target.value);
location.search = params.toString();
});
window.addEventListener("load", () => {
const params = new URLSearchParams(location.search);
if (params.has("directoriesFirst")) {
directoriesCheckbox.checked = true;
}
if (params.has("sort")) {
sortSelect.value = params.get("sort");
}
});
</script>
</form>
</div>
</body>
</html>