file-uploader

Simple file uploader made on Crystal. I'm making this to replace my current File uploader hosted on https://ayaya.beauty which uses https://github.com/nokonoko/uguu Already replaced lol.

Features

• Temporary file uploads like Uguu
• File deletion link (not available in frontend for now)
• Chatterino and ShareX support
• Video Thumbnails for Chatterino and FrankerFaceZ
• Unix socket support if you don't want to deal with all the TCP overhead
• Automatic protocol detection (HTTPS or HTTP)
• Low memory usage: Between 6MB at idle and 25MB if a file is being uploaded or retrieved. It will depend of your traffic.

Usage

• Clone this repository, compile it using shards build --release and execute the server using ./bin/file-uploader.
• Change the settings file ./config/config.yml acording to what you need.

NGINX Server block

Assuming you are already using NGINX and you know how to use it, you can use this example server block.

server {
    # You can keep the domain prefixed with `~.` if you want
    # to allow users to use any domain to upload and retrieve
    # files. Like xdxd.example.com or lolol.example.com .
    # This will only work if you have a wildcard domain.
	server_name ~.example.com example.com;

	location / {
        proxy_pass http://127.0.0.1:8080;
        # This if you want to use a UNIX socket instead
		#proxy_pass http://unix:/tmp/file-uploader.sock;
        proxy_set_header X-Forwarded-For   $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-Host  $host;
		proxy_pass_request_headers      on;
	}

    # This should be the size_limit value (from config.yml)
	client_max_body_size 512M;

	listen 443 ssl;
	http2 on;
}

Systemd user service example

[Unit]
Description=file-uploader-crystal
After=network.target

[Service]
Type=simple
Restart=always
RestartSec=2
LimitNOFILE=4096
Environment="KEMAL_ENV=production"
ExecStart=%h/file-uploader-crystal/bin/file-uploader
WorkingDirectory=%h/file-uploader-crystal/

[Install]
WantedBy=default.target

TODO

• Add file size limit ADDED
• Fix error when accessing http://127.0.0.1:8080 with an empty DB. Fixed somehow.
• Better frontend...
• Disable file deletion if delete_files_after_check_seconds or delete_files_after is set to 0 DONE
• Disable delete key if delete_key_length is 0 DONE (But I think there is a better way to do it)
• Exit if filename_length is 0 DONE
• Disable file limit if size_limit is 0 DONE
• Prevent files from being overwritten in the event of a name collision DONE
• Dockerfile and Docker image (Crystal doesn't has dependency hell like other languages so is not really necessary to do, but useful for people that want instant deploy)