AnonPhotoShare

AnonPhotoShare is a single‑file PHP application that lets you and your friends share images anonymously without needing a database or any third‑party services.
Just drop it onto any PHP‑enabled web host ⟶ open the page ⟶ start uploading.

---

✨ Features

• Drag‑and‑drop uploads with instant thumbnail preview
• Automatic thumbnail generation (default 750 × 750 px) powered by the GD extension
• File‑type & size validation – accepts JPG, PNG, GIF, WebP up to 10 MB
• Ephemeral storage – files older than 3 days are pruned on every request
• Download or view originals in a single click
• Dark‑mode Bootstrap 5 UI packaged right inside index.php – no external assets
• Zero configuration, zero dependencies, 100 % self‑contained

---

📂 Project layout

.
├── index.php             # all application logic & UI
├── uploads/              # originals (created automatically, git‑ignored)
├── thumbnails/           # generated thumbs (created automatically, git‑ignored)
└── image_metadata.json   # tiny JSON DB with per‑file metadata

Note: uploads/, thumbnails/, and image_metadata.json are created on first run if they don’t exist.

---

🚀 Quick start

1. Clone or copy the repository (it is literally one file):

   git clone https://github.com/HirotakaDango/AnonPhotoShare.git
   cd AnonPhotoShare

2. Ensure PHP 8.0+ (with the GD extension enabled) is available.

3. Launch with the built‑in PHP server:

   php -S localhost:8000

4. Open http://localhost:8000 in your browser and upload away!

---

🛠️ Configuration

Open index.php and tweak the constants near the top:

Constant	Purpose	Default
THUMBNAIL_WIDTH / THUMBNAIL_HEIGHT	Size of generated thumbnails	750
MAX_FILE_SIZE	Max upload size in bytes	10 * 1024 * 1024 (10 MB)
ALLOWED_MIME_TYPES / ALLOWED_EXTENSIONS	Whitelist of file types	JPEG / PNG / GIF / WebP
FILE_RETENTION_DAYS	How long to keep files before pruning	3

Changes take effect immediately; no rebuild or restart required.

---

🧹 House‑keeping

A lightweight cleanup_old_files() routine runs on every request and removes any images (and their thumbnails) older than the retention period.
If you prefer a scheduled cleanup, you can comment out that call and run the function via cron instead:

# Every day at 02:00
0 2 * * * php /var/www/html/index.php cleanup

---

• Don’t forget to make uploads/, thumbnails/, and image_metadata.json writable by the web server user:
  chown -R www-data:www-data uploads thumbnails image_metadata.json

---

🔒 Security notes

• All uploads are validated against their MIME type and file extension.
• Files are saved with a random 12‑character ID to avoid name collisions and guessing.
• Consider putting the app behind basic auth or a VPN if you do not want the world to upload files.