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<?php |
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/** |
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* Connection management for the built-in MCP server (spec 046, FR-020, FR-039c, |
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* FR-039g, FR-046). |
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* |
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* Mints, lists, re-scopes and revokes the credentials an agent presents to the |
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* built-in server, and reports the delegated (OAuth) connections alongside them |
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* so one screen answers "who can reach this site". |
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* |
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* Named `Connections` (plural) rather than `Connection`: `wp-abilities-api` owns |
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* a `REST/Connection.php` too, and the two are unrelated — that one onboards the |
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* separately-installed mcp-adapter plugin (installs it, mints an Application |
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* Password); this one manages THIS server's own credential list. Distinct |
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* namespaces would keep them from colliding in PHP, but not in a reader's head. |
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* |
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* No new admin screen is introduced — the tab attaches to the EXISTING settings |
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* page through its tab-injection filter. |
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* |
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* @package Templately\Modules\McpServer\REST |
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*/ |
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|
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namespace Templately\Modules\McpServer\REST; |
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|
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use Templately\Modules\McpCore\Activity\ActivityLog; |
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use Templately\Modules\McpCore\Registry\ToolDescriptor; |
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use Templately\Modules\McpCore\Registry\ToolRegistry; |
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use Templately\Modules\McpServer\Auth\Credentials; |
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use Templately\Modules\McpServer\Auth\OAuth\RecordStore; |
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use Templately\Modules\McpServer\Server\HttpTransport; |
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use Templately\Utils\Base; |
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use WP_Error; |
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use WP_REST_Request; |
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use WP_REST_Response; |
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|
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class Connections extends Base { |
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|
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public function __construct() { |
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add_action( 'rest_api_init', [ $this, 'register_routes' ] ); |
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add_filter( 'templately_admin_localized_data', [ $this, 'inject_localized_data' ] ); |
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} |
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|
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public function register_routes(): void { |
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$base = '/mcp/connection'; |
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|
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register_rest_route( |
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HttpTransport::NAMESPACE, |
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$base, |
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[ |
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[ |
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'methods' => 'GET', |
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'callback' => [ $this, 'get_connection' ], |
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'permission_callback' => [ $this, 'can_manage' ], |
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], |
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[ |
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'methods' => 'POST', |
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'callback' => [ $this, 'create_credential' ], |
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'permission_callback' => [ $this, 'can_manage' ], |
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], |
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] |
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); |
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|
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register_rest_route( |
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HttpTransport::NAMESPACE, |
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$base . '/(?P<id>[A-Za-z0-9_]+)', |
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[ |
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[ |
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'methods' => 'POST', |
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'callback' => [ $this, 'update_credential' ], |
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'permission_callback' => [ $this, 'can_manage' ], |
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// REJECT an absent or misspelled level rather than coercing it. |
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// `Credentials::normalize_level()` resolves anything that is not |
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// exactly "read" to FULL — correct for a token an administrator |
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// is deliberately minting, dangerous here, where the same call |
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// now also edits a DELEGATED grant. Without this, a retried or |
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// malformed POST silently promotes a read-only agent connection |
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// to full write access and answers 200 as if that were intended. |
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'args' => [ |
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'access_level' => [ |
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'required' => true, |
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'type' => 'string', |
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'enum' => [ ToolDescriptor::ACCESS_READ, ToolDescriptor::ACCESS_FULL ], |
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], |
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], |
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], |
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[ |
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'methods' => 'DELETE', |
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'callback' => [ $this, 'revoke_credential' ], |
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'permission_callback' => [ $this, 'can_manage' ], |
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], |
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] |
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); |
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|
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register_rest_route( |
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HttpTransport::NAMESPACE, |
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$base . '/revoke-all', |
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[ |
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'methods' => 'POST', |
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'callback' => [ $this, 'revoke_all' ], |
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'permission_callback' => [ $this, 'can_manage' ], |
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] |
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); |
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} |
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|
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/** |
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* Administrator OF THIS SITE — never network administrator (FR-039c), so a |
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* site owner on multisite can manage their own connection. |
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* |
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* @return bool |
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*/ |
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public function can_manage(): bool { |
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return is_user_logged_in() && current_user_can( 'manage_options' ); |
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} |
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|
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/** |
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* @return WP_REST_Response |
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*/ |
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public function get_connection(): WP_REST_Response { |
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return new WP_REST_Response( |
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[ |
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'endpoint' => rest_url( HttpTransport::NAMESPACE . '/mcp' ), |
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'pretty_url' => home_url( '/templately/mcp' ), |
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'connected' => Credentials::site_has_any(), |
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'credentials' => self::all_connections(), |
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'activity' => ActivityLog::recent( 25 ), |
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'tools' => self::tool_summary(), |
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// Everything this server serves through a REWRITE — OAuth discovery, |
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// the approval screen, the pretty endpoint alias — is unreachable |
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// while permalinks are plain, because no rewrite rule runs at all. |
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// The bearer-credential flow below is unaffected (the REST route is |
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// still reachable as `?rest_route=`), so the tab warns instead of |
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// blocking. Without this an administrator on a default-permalink |
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// site sees a connect flow that simply never completes, with nothing |
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// on screen explaining why. |
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'pretty_permalinks' => '' !== (string) get_option( 'permalink_structure' ), |
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], |
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200 |
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); |
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} |
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|
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/** |
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* Every connection this site holds, from BOTH credential systems. |
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* |
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* There are two: pairing tokens an administrator creates here |
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* (`Credentials`), and delegated grants an application obtains through |
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* OAuth (`RecordStore`). The list previously showed only the first, so a |
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* site connected the way ChatGPT and Claude connect — the URL-only flow this |
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* whole OAuth surface exists to serve — reported "No connections yet" while |
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* an agent was actively using it. Nothing was wrong with the connection; it |
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* was simply invisible, and therefore un-revokable from the UI. |
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* |
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* Pairing tokens carry `source: 'token'` and delegated grants |
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* `source: 'oauth'`, which is what the table keys its per-row affordances off. |
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* |
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* @return array |
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*/ |
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private static function all_connections(): array { |
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$tokens = array_map( |
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static function ( $record ) { |
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$record['source'] = 'token'; |
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|
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return $record; |
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}, |
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Credentials::list_public() |
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); |
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|
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return array_merge( $tokens, RecordStore::list_connections() ); |
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} |
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|
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/** |
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* The capabilities an agent can call, for the Settings → AI Agents "Tools" |
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* view. Read from the registry so it can never drift from what the server |
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* actually serves (FR-010). |
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* |
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* Exposes `access_level` — the security control — NOT the advisory |
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* `annotations.readonly`, which can legitimately disagree with it (see |
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* ToolDescriptor). Showing the annotation here would tell an administrator |
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* that `auth-login-with-google` is read-only when a read-only credential is |
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* in fact refused it. |
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* |
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* @return array |
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*/ |
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private static function tool_summary(): array { |
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$tools = []; |
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|
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foreach ( ToolRegistry::get_instance()->all() as $descriptor ) { |
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$tools[] = [ |
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'id' => $descriptor->id, |
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'label' => $descriptor->label, |
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'description' => $descriptor->description, |
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'access_level' => $descriptor->access_level, |
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]; |
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} |
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|
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return $tools; |
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} |
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|
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/** |
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* The ONLY moment the secret exists (FR-021). It is never returned again. |
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* |
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* @param WP_REST_Request $request |
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* @return WP_REST_Response |
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*/ |
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public function create_credential( WP_REST_Request $request ): WP_REST_Response { |
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$name = sanitize_text_field( (string) $request->get_param( 'name' ) ); |
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$level = Credentials::normalize_level( (string) $request->get_param( 'access_level' ) ); |
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|
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$created = Credentials::create( $name, get_current_user_id(), $level ); |
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|
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return new WP_REST_Response( |
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[ |
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'id' => $created['id'], |
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// Shown once, then unrecoverable — only its hash is stored. |
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'secret' => $created['secret'], |
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'credentials' => self::all_connections(), |
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], |
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201 |
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); |
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} |
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|
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/** |
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* @param WP_REST_Request $request |
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* @return WP_REST_Response|WP_Error |
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*/ |
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public function update_credential( WP_REST_Request $request ) { |
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$id = (string) $request->get_param( 'id' ); |
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$level = Credentials::normalize_level( (string) $request->get_param( 'access_level' ) ); |
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|
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// A delegated grant is edited in its own store — and can be widened to |
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// full access from here WITHOUT the user disconnecting and re-approving, |
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// which is otherwise the only remedy when a client asks for read only. |
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$client_id = RecordStore::client_id_from_public_id( $id ); |
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|
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$updated = '' !== $client_id |
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? RecordStore::set_client_access_level( $client_id, $level ) |
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: Credentials::set_access_level( $id, $level ); |
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|
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if ( ! $updated ) { |
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return new WP_Error( 'not_found', __( 'Connection not found.', 'templately' ), [ 'status' => 404 ] ); |
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} |
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|
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return new WP_REST_Response( [ 'credentials' => self::all_connections() ], 200 ); |
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} |
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|
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/** |
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* @param WP_REST_Request $request |
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* @return WP_REST_Response|WP_Error |
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*/ |
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public function revoke_credential( WP_REST_Request $request ) { |
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$id = (string) $request->get_param( 'id' ); |
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|
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$client_id = RecordStore::client_id_from_public_id( $id ); |
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|
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$revoked = '' !== $client_id |
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? RecordStore::revoke_client( $client_id ) |
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: Credentials::revoke( $id ); |
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|
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if ( ! $revoked ) { |
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return new WP_Error( 'not_found', __( 'Connection not found.', 'templately' ), [ 'status' => 404 ] ); |
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} |
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|
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return new WP_REST_Response( [ 'credentials' => self::all_connections() ], 200 ); |
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} |
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|
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/** |
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* @return WP_REST_Response |
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*/ |
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public function revoke_all(): WP_REST_Response { |
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Credentials::revoke_all(); |
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|
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return new WP_REST_Response( |
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[ |
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'credentials' => [], |
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'connected' => false, |
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], |
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200 |
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); |
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} |
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|
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/** |
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* Tell the settings SPA the tab exists and where the endpoint lives. |
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* |
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* Keyed `mcpServer`, NOT `mcp`: `wp-abilities-api`'s own Connection class |
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* writes `mcp` for the adapter-onboarding tab, and whichever filter ran last |
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* would otherwise silently overwrite the other — leaving one of the two tabs |
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* permanently unregistered, since each bundle self-gates on its own key. |
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* |
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* @param array $data |
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* @return array |
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*/ |
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public function inject_localized_data( $data ) { |
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if ( ! is_array( $data ) ) { |
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return $data; |
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} |
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|
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$data['mcpServer'] = [ |
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'endpoint' => rest_url( HttpTransport::NAMESPACE . '/mcp' ), |
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'connected' => Credentials::site_has_any(), |
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'accessLevels' => [ |
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ToolDescriptor::ACCESS_READ => __( 'Read-only', 'templately' ), |
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ToolDescriptor::ACCESS_FULL => __( 'Full access', 'templately' ), |
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], |
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]; |
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|
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return $data; |
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} |
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} |
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|
