sharing-service

A simple, retro-device friendly sharing service backend for the Share Space webOS app.

Don't @ me for using tables for layout. This web UI was designed to work with old and new browsers.

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Quick Start with Docker

The fastest way to get running on a Raspberry Pi or any Linux machine with Docker installed.

git clone https://github.com/webosarchive/sharing-service
cd sharing-service
docker compose up -d

On first run, the container generates random credentials and prints them to the log:

docker logs <container-name>

Look for the first-run block:

========================================================
  Share Space - First Run
========================================================
  CLIENT ID  : a1b2c3d4e5f6a1b2
  CREATE KEY : f6e5d4c3b2a1f6e5
========================================================
  Enter the CLIENT ID and CREATE KEY in the Share Space
  app under Preferences > Server to connect.
========================================================

Keep these values — you need them to connect the app and create accounts.

Your server is now running on port 8080. Use http://your-pi-hostname:8080/ as the server address in the app.

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Network Access

LAN Only (Simplest)

If your webOS device and the server are on the same network, no further setup is needed.

• Server address: http://raspberrypi.local:8080/ (or your Pi's IP address)
• Enable Force HTTPS is off in app preferences (HTTP is fine on a trusted LAN)

Internet Access via Cloudflare Tunnel (Free HTTPS, No Port Forwarding)

To reach your server from outside your home network, the easiest option is a Cloudflare Tunnel. It gives you a free HTTPS URL without opening firewall ports or managing certificates.

Quick tunnel (temporary URL, no account needed — good for testing):

docker compose -f docker-compose.yml -f docker-compose.cloudflare.yml up -d
docker logs <cloudflared-container-name>
# Watch for a line like: https://example-word-word.trycloudflare.com

Persistent tunnel (permanent URL, free Cloudflare account required):

1. Sign up at cloudflare.com
2. Go to Zero Trust > Networks > Tunnels > Create a tunnel
3. Copy the tunnel token
4. Set the token and start:

export CLOUDFLARE_TOKEN=your-token-here
docker compose -f docker-compose.yml -f docker-compose.cloudflare.yml up -d

Use the HTTPS URL from Cloudflare as your server address in the app. Force HTTPS is not needed — the URL itself is already https://.

Other Options

• Tailscale: Install Tailscale on both the Pi and your devices. Use the Pi's Tailscale IP with HTTP. Good for a private mesh between your own devices.
• DuckDNS + Certbot: Free dynamic DNS and Let's Encrypt certificate. More complex, requires ports 80/443 to be forwarded on your router.

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Connecting the App

In the Share Space app on your webOS device, go to Preferences > Server:

Field	Value
Use Custom Server	On
Server URL	http://your-pi:8080/ (or your Cloudflare URL)
Client ID	From the first-run log output
Create Key	From the first-run log output (needed to create accounts)

To create your first account, go through the normal new-user flow in the app. You will be prompted for the Create Key.

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Configuration

Environment Variables (Docker)

Set these in docker-compose.yml under environment:, or in a .env file in the same directory.

Variable	Default	Description
CLIENT_ID	auto-generated	API key clients send with every request
CREATE_KEY	auto-generated	Key required to create new accounts (leave empty to allow open registration)
READONLY_KEY	auto-generated	Internal read-only key, should not be shared
SHORT_URL	(empty)	Alternate short domain for share links
MAX_SHARES	20	Max items per user before oldest roll off
MAX_IMAGE_SIZE	3072000	Max image upload size in bytes (~3 MB)
MAX_TEXT_LENGTH	5000	Max text share length in bytes
ADMIN_CONTACT	(empty)	Email shown to users when a create key is required
SITE_NAME	Your Share Space	Headline on the web landing page
WELCOME_MESSAGE	(see default)	Body text on the web landing page

Manual Configuration (Non-Docker)

Copy config-example.php to config.php and edit the values:

cp config-example.php config.php

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Manual Install (Non-Docker)

System Requirements

• PHP with php-curl and php-gd or php-imagick
• Composer
• Web server (Apache, nginx) with read/write access to the data/ folder
• Optional: libheif-examples for HEIC/HEIF image conversion

Setup

# Install PHP dependencies
composer require maestroerror/php-heic-to-jpg

# Copy and edit configuration
cp config-example.php config.php
# Edit config.php with your settings

# Set data directory permissions (replace www-data with your web server user)
mkdir -p data
chown -R www-data:www-data data/

The web server user needs read/write access to the data/ directory and all its contents.

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Troubleshooting

HEIC image conversion issues: Some HEIC images masquerade as JPEGs (common on Samsung devices). If thumbnails fail for these, make sure libheif-examples is installed and the heif-convert command is available. This is handled automatically in the Docker image.

Permission errors on data/: The web server user must own the data/ directory. In Docker this is handled automatically by the entrypoint script.

Can't reach the server from the app: Make sure the port (default 8080) is accessible. If using a LAN address, check that your firewall allows the port. If using Cloudflare Tunnel, check the cloudflared container logs for the assigned URL.

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Upgrading from the Hosted Service

The community-hosted service at share.webosarchive.org is being phased out. To migrate:

1. Set up your own server using this guide
2. Open the Share Space app and go to Preferences > Server
3. Enable Use Custom Server and enter your server address
4. Create a new account on your server

Your existing shares on the hosted service are stored as files in the data/ directory. If you have direct access to the hosted server, you can copy your user directory (data/yourusername/) to your new server's data/ folder. Otherwise, manually re-share any content you want to keep.