WordPress Plugin Info and Download API Proxy

This PHP solution provides a WordPress-style plugin info API, using data fetched from GitHub releases and package.json file. It is ideal for custom plugin update APIs or integration with WordPress plugin management tools.

Features

• Fetches plugin info from GitHub releases and package.json
• Supports multiple plugin slugs (multiple repos)
• Allows specifying a release tag (returns info for that release)
• Supports release channels (stable, beta, rc, nightly, prerelease, all)
• Returns error if plugin slug is not found
• Includes author profile, total download count, and all available versions
• Provides download endpoints for both release and branch zips
• Caches API responses for performance (5 min default)

Requirements

• PHP 7.2+
• Composer
• Guzzle HTTP client
• Access to the GitHub API (optionally with a personal access token for private repos or higher rate limits)

Setup

1. Clone or copy this script into your desired directory.

2. Install Composer dependencies (Guzzle):

   composer require guzzlehttp/guzzle

3. Configure allowed plugins:

   • Open allowed-plugins.php.
   • Edit the $allowed_plugins array to include your plugin slugs and GitHub repo info. You can also set optional keys:
     • branch_download: (string) Allow a branch to be downloaded as a zip (e.g. 'trunk')
     • min_release: (string) Only fetch releases from this tag onwards (e.g. 'v5.0.0')

     $allowed_plugins = [
     'cart-rest-api-for-woocommerce' => [
     'owner' => 'co-cart',
     'repo' => 'co-cart',
     'branch_download' => 'trunk', // optional'min_release' => 'v5.0.0', // optional
     ],
     // Add more plugins as needed
     ];

4. (Optional) Configure GitHub token:

   • Open github-token.php.
   • Set your GitHub personal access token in the $github_token variable for private repos or higher rate limits:

     $github_token = 'YOUR_GITHUB_TOKEN';

5. Deploy the script to your server or local environment.

6. Configure web server rewrite rules:

   • Use the provided .htaccess to rewrite pretty endpoints to the correct PHP scripts.
   • Example rules for Apache (see .htaccess):

     # /plugin-info/{slug}.json → plugin-info.php?slug={slug}RewriteRule^plugin-info/(.+)\.json$plugin-info.php?slug=$1 [L,QSA]
     # /download/release/{slug}-{version}.zip → download.phpRewriteRule^download/release/(.+)-(.+)\.zip$download.php [L,QSA]
     # /download/branch/{slug}-{branch}.zip → download.phpRewriteRule^download/branch/(.+)-(.+)\.zip$download.php [L,QSA]

Endpoints & Usage

Get Latest Release Info

GET /plugin-info/{slug}.json

Example:

GET /plugin-info/cart-rest-api-for-woocommerce.json

Get Specific Release Info

GET /plugin-info/{slug}.json?release={tag}

Example:

GET /plugin-info/cart-rest-api-for-woocommerce.json?release=v4.6.0

Get Info for a Specific Channel

GET /plugin-info/{slug}.json?channel=beta

• Supported channels: stable (default), beta, rc, nightly, prerelease, all

Download a Release ZIP

GET /download/release/{slug}-{version}.zip

Example:

GET /download/release/cart-rest-api-for-woocommerce-4.6.0.zip

• Returns the ZIP asset for the specified release (tries both v-prefixed and non-prefixed tags)

Download a Branch ZIP (if enabled)

GET /download/branch/{slug}-{branch}.zip

Example:

GET /download/branch/cart-rest-api-for-woocommerce-trunk.zip

• Returns a ZIP of the specified branch, with the folder renamed to match the plugin slug

Example JSON Response

{
"name": "cart-rest-api-for-woocommerce",
"slug": "cart-rest-api-for-woocommerce",
"version": "4.6.0",
"author": "CoCart",
"author_profile": "https://github.com/co-cart",
"downloaded": 12345,
"requires": "6.3",
"tested": "6.5",
"requires_php": "7.4",
"last_updated": "2024-06-01T12:00:00Z",
"homepage": "https://github.com/co-cart/co-cart",
"sections": {
"description": "A REST API for WooCommerce.",
"changelog": "<h2>Changelog</h2><ul><li>Added new endpoints</li><li>Fixed bugs</li></ul>"
},
"download_link": "https://yourdomain.com/download/release/cart-rest-api-for-woocommerce-4.6.0.zip",
"versions": {
"trunk": "https://yourdomain.com/download/branch/cart-rest-api-for-woocommerce-trunk.zip",
"4.6.0": "https://yourdomain.com/download/release/cart-rest-api-for-woocommerce-4.6.0.zip"// ...
}
}

Error Example

GET /plugin-info/not-a-real-plugin.json

Response:

{"error":"Plugin not found."}

Notes

• For private repositories or higher API rate limits, set a GitHub personal access token in $github_token.
• The script fetches and decodes package.json from the specified release tag.
• Download counts and version info are aggregated from all GitHub releases.
• The API response is cached for 5 minutes by default for performance.
• Extend the $allowed_plugins array to support more plugins.
• Download endpoints are protected by allowed plugin slugs.
• Error responses are returned as JSON with an error key.
• All endpoints require the rewrite rules to be active (see .htaccess).

License

MIT