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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.
<h4>How it works</h4>
<ol>
<li>An authorized WordPress user generates a token from the Gutenberg sidebar, Quick Edit panel, or Classic Editor meta box.</li>
<li>The token is embedded in a preview URL pointing to your external frontend.</li>
<li>The frontend calls <code>/wp-json/yui-preview-token/v1/preview?token=…</code> to retrieve the draft content.</li>
<li>The token expires automatically; no manual cleanup needed.</li>
</ol>
<h4>Key Features</h4>
Token Management
<ul>
<li>Generate tokens with expiry presets: 1 hour, 24 hours, 30 days, custom date/time, or no expiry.</li>
<li>One token per post — issuing a new token invalidates the previous one.</li>
<li>Tokens are generated with <code>bin2hex(random_bytes(32))</code> (256-bit CSPRNG). The lookup key stored in <code>wp_options</code> is the SHA-256 hash of the raw token, not the token itself — so a database leak does not expose usable tokens directly.</li>
<li>Automatic cleanup of expired tokens via WP Cron (daily).</li>
</ul>
Editor Integration
<ul>
<li>Gutenberg: dedicated panel in the Document Settings sidebar.</li>
<li>Quick Edit: token controls directly in the post list.</li>
<li>Classic Editor: meta box in the editor sidebar.</li>
<li>Copy preview URL to clipboard with one click.</li>
<li>Update expiry without invalidating the current token.</li>
</ul>
Admin Settings
<ul>
<li>Set the external frontend URL (clicking “Open external preview” navigates directly to this URL).</li>
<li>Configure allowed CORS origins (multiple, with wildcard support — <code>https://*.example.com</code>).</li>
<li>Choose the minimum WordPress role required to issue tokens (Subscriber → Administrator).</li>
<li>Tune rate limiting (requests per time window).</li>
<li>Optionally permit no-expiry tokens.</li>
</ul>
Issued Tokens List
<ul>
<li>View all active and expired tokens with post title, status, expiry, and issuer.</li>
<li>Revoke individual tokens or bulk-delete expired ones — all from the Settings screen.</li>
</ul>
Security
<ul>
<li>HTTPS required for the preview endpoint (overridable for local development).</li>
<li>Per-IP rate limiting with configurable thresholds (default: 30 req / 60 s).</li>
<li>Role-based access control for token issuance.</li>
<li>CORS headers only sent for explicitly configured origins; WP core’s permissive echo-back is suppressed.</li>
<li><code>Referrer-Policy: no-referrer</code> prevents token leakage via referer headers.</li>
<li>Tokens are only valid for <code>draft</code>, <code>pending</code>, and <code>future</code> post statuses.</li>
<li>Admin-only settings page with defence-in-depth capability checks.</li>
<li>CSRF protection on all admin actions (nonce verification).</li>
</ul>
Audit Logging
<ul>
<li>Logs token issuance and usage events (post ID, user ID, client IP).</li>
<li>Logs security events: invalid token attempts, rate-limit violations, capability denials.</li>
<li>Output goes to <code>WP_DEBUG_LOG</code> by default; point to a dedicated file with <code>PVT_LOG_FILE</code>.</li>
</ul>
Internationalisation
<ul>
<li>Ships with Japanese (ja) and Simplified Chinese (zh_CN) translations.</li>
<li>All admin UI strings are translation-ready.</li>
</ul>
<h4>Developer Hooks</h4>
Filter
<ul>
<li><code>yuipt_preview_response_data</code> — Modify the REST API response data before it is sent.</li>
</ul>
Actions
<ul>
<li><code>yuipt_token_issued( int $post_id, int $user_id )</code> — Fires after a token is issued.</li>
<li><code>yuipt_token_used( int $post_id, int $user_id )</code> — Fires when a token is used successfully.</li>
<li><code>yuipt_invalid_token( string $ip )</code> — Fires on an invalid/expired token attempt.</li>
<li><code>yuipt_rate_limit_exceeded( string $ip, string $endpoint )</code> — Fires when rate limit is hit.</li>
<li><code>yuipt_capability_denied( int $user_id, int $post_id )</code> — Fires on a capability denial.</li>
</ul>
Constants (wp-config.php)
<ul>
<li><code>PVT_SKIP_HTTPS_CHECK</code> — Set to <code>true</code> to disable the HTTPS requirement (development only).</li>
<li><code>PVT_LOG_FILE</code> — Absolute path to a dedicated audit log file.</li>
</ul>
<h4>Use Case</h4>
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.

YUI Preview Token

Issue time-limited preview tokens for headless WordPress setups. Open drafts directly in your frontend URL without long-lived credentials.

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The WPTelMessage plugin works with contact forms such as Contact Form 7, WPForms, and NinjaForms. 
You can also configure the WPTelMessage plugin to work with WooCommerce, allowing you to receive notifications in Telegram about orders in your store and respond to them promptly. 
 
The WPTelMessage plugin has minimal settings. All you need to do is specify your Telegram group number and the token of your Telegram bot. After that, you only need to activate the contact form from which you want to receive messages. 
If you are using the WooCommerce plugin, in addition to activating the message reception feature, you will also need to enable the necessary notifications for orders or products.
<h3>Additional Info</h3>
<h4>Resources used by the WPTelMessage plugin</h4>
The WPTelMessage plugin uses the Telegram API (https://core.telegram.org/api) for its operation. 
The token number and chat ID you specified are required for the plugin to work and will be sent to the Telegram servers. 
Messages from contact forms and the WooCommerce plugin will also be sent to the Telegram servers.
You can read the Telegram API terms of use and Telegram privacy policy here: https://telegram.org/privacy/ru

WPTelMessage

The WPTelMessage plugin will help you quickly receive messages sent from the contact form on your website or from the WooCommerce plugin in Telegram.

YUI Preview Token vs WPTelMessage