YUI Preview Token Wordpress Plugin - Rating, Reviews, Demo & Download

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Free

Plugin Description

YUI Preview Token solves the authentication problem in decoupled (headless) WordPress architectures. Application Passwords are a great built-in WordPress feature for this purpose, but they require managing long-lived secrets on the frontend side. This plugin instead issues per-post tokens that grant read access for a configurable period — no persistent secrets required.

The frontend (Astro, Next.js, Nuxt, etc.) receives a preview URL and can fetch the draft content directly via the REST API.

How it works

1. An authorized WordPress user generates a token from the Gutenberg sidebar, Quick Edit panel, or Classic Editor meta box.
2. The token is embedded in a preview URL pointing to your external frontend.
3. The frontend calls /wp-json/yui-preview-token/v1/preview?token=… to retrieve the draft content.
4. The token expires automatically; no manual cleanup needed.

Key Features

Token Management

• Generate tokens with expiry presets: 1 hour, 24 hours, 30 days, custom date/time, or no expiry.
• One token per post — issuing a new token invalidates the previous one.
• Tokens are generated with bin2hex(random_bytes(32)) (256-bit CSPRNG). The lookup key stored in wp_options is the SHA-256 hash of the raw token, not the token itself — so a database leak does not expose usable tokens directly.
• Automatic cleanup of expired tokens via WP Cron (daily).

Editor Integration

• Gutenberg: dedicated panel in the Document Settings sidebar.
• Quick Edit: token controls directly in the post list.
• Classic Editor: meta box in the editor sidebar.
• Copy preview URL to clipboard with one click.
• Update expiry without invalidating the current token.

Admin Settings

• Set the external frontend URL (clicking “Open external preview” navigates directly to this URL).
• Configure allowed CORS origins (multiple, with wildcard support — https://*.example.com).
• Choose the minimum WordPress role required to issue tokens (Subscriber → Administrator).
• Tune rate limiting (requests per time window).
• Optionally permit no-expiry tokens.

Issued Tokens List

• View all active and expired tokens with post title, status, expiry, and issuer.
• Revoke individual tokens or bulk-delete expired ones — all from the Settings screen.

Security

• HTTPS required for the preview endpoint (overridable for local development).
• Per-IP rate limiting with configurable thresholds (default: 30 req / 60 s).
• Role-based access control for token issuance.
• CORS headers only sent for explicitly configured origins; WP core’s permissive echo-back is suppressed.
• Referrer-Policy: no-referrer prevents token leakage via referer headers.
• Tokens are only valid for draft, pending, and future post statuses.
• Admin-only settings page with defence-in-depth capability checks.
• CSRF protection on all admin actions (nonce verification).

Audit Logging

• Logs token issuance and usage events (post ID, user ID, client IP).
• Logs security events: invalid token attempts, rate-limit violations, capability denials.
• Output goes to WP_DEBUG_LOG by default; point to a dedicated file with PVT_LOG_FILE.

Internationalisation

• Ships with Japanese (ja) and Simplified Chinese (zh_CN) translations.
• All admin UI strings are translation-ready.

Developer Hooks

Filter

• yuipt_preview_response_data — Modify the REST API response data before it is sent.

Actions

• yuipt_token_issued( int $post_id, int $user_id ) — Fires after a token is issued.
• yuipt_token_used( int $post_id, int $user_id ) — Fires when a token is used successfully.
• yuipt_invalid_token( string $ip ) — Fires on an invalid/expired token attempt.
• yuipt_rate_limit_exceeded( string $ip, string $endpoint ) — Fires when rate limit is hit.
• yuipt_capability_denied( int $user_id, int $post_id ) — Fires on a capability denial.

Constants (wp-config.php)

• PVT_SKIP_HTTPS_CHECK — Set to true to disable the HTTPS requirement (development only).
• PVT_LOG_FILE — Absolute path to a dedicated audit log file.

Use Case

This plugin is designed for headless WordPress setups where a decoupled frontend (e.g. Astro, Next.js, Nuxt, SvelteKit) renders content from the WordPress REST API. It gives content editors a simple, secure way to share draft previews with stakeholders without granting them WordPress accounts or exposing long-lived API credentials.

Screenshots

1. 

   Gutenberg sidebar — Token generation panel before a token is issued. Select an expiry and click “Generate token”.

2. 

   Gutenberg sidebar — Active token: expiry info, open preview in the designated frontend URL, and copy-to-clipboard.

3. 

   Classic Editor — Token panel in the meta box sidebar, before a token is issued.

4. 

   Classic Editor — Active token with “Open external preview” button and change-expiry / delete actions.

5. 

   Settings page — Configure the frontend URL, CORS origins, minimum role, and rate limits.

6. 

   Issued Tokens tab — Review all issued tokens with post, status, expiry, and issuer. Revoke or bulk-delete expired ones.

7. 

   Quick Edit panel — Token management directly from the post list screen, without opening the editor.

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