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<?php |
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|
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/** |
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* @copyright © Melograno Venture Studio. All rights reserved. |
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* @licence See COPYING.md for license details. |
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*/ |
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|
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namespace IvyForms\Infrastructure\WP\MCP; |
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|
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use IvyForms\Services\Settings\SettingsService; |
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|
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/** |
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* Central feature gate for IvyForms MCP. |
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* |
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* MCP exposes IvyForms capabilities to AI clients. It is ON by default; site owners can |
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* turn it off via IvyForms Settings → General ("Enable MCP for AI assistants") or force a |
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* value with the {@code ivyforms/mcp/enabled} filter. Access is always scoped to each |
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* user's IvyForms permissions (see {@see McpAbilityPermissions}). |
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* |
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* Hard prerequisites (always enforced): |
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* - The Abilities API must be loaded ({@see wp_register_ability}). |
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* - WordPress core must be at least {@see IVYFORMS_MCP_MIN_WP_VERSION}. |
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*/ |
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class McpFeatureGate |
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{ |
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public const FILTER_ENABLED = 'ivyforms/mcp/enabled'; |
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|
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/** |
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* Whether MCP should bootstrap and register routes/abilities. |
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*/ |
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public static function isEnabled(): bool |
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{ |
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if (!function_exists('wp_register_ability')) { |
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return false; |
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} |
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|
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if (!self::wordPressVersionSatisfiesMinimum()) { |
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return false; |
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} |
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|
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return (bool) apply_filters(self::FILTER_ENABLED, self::isEnabledInStoredSettings()); |
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} |
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|
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/** |
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* Whether MCP is enabled via IvyForms Settings → General (ivyforms_settings option). |
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* |
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* Enabled by default: when no explicit choice has been stored we treat MCP as ON, so |
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* only an explicit opt-out (mcp_enabled = false) disables it. |
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*/ |
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private static function isEnabledInStoredSettings(): bool |
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{ |
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if (!function_exists('get_option')) { |
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return true; |
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} |
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|
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$stored = (new SettingsService())->getSetting('general', 'mcp_enabled'); |
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|
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return self::coerceStoredEnabled($stored); |
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} |
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|
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/** |
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* Coerce a stored mcp_enabled value to a boolean, defaulting to enabled. |
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* |
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* @param mixed $rawEnabled |
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*/ |
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public static function coerceStoredEnabled($rawEnabled): bool |
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{ |
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if (is_bool($rawEnabled)) { |
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return $rawEnabled; |
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} |
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|
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if (is_string($rawEnabled) && trim($rawEnabled) === '') { |
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return true; |
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} |
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|
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if (is_string($rawEnabled) || is_int($rawEnabled)) { |
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return filter_var($rawEnabled, FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE) ?? true; |
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} |
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|
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return true; |
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} |
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|
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/** |
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* True when the running WordPress version is at least the documented minimum. |
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*/ |
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private static function wordPressVersionSatisfiesMinimum(): bool |
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{ |
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$minimum = defined('IVYFORMS_MCP_MIN_WP_VERSION') ? (string) IVYFORMS_MCP_MIN_WP_VERSION : '6.9'; |
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|
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return version_compare((string) get_bloginfo('version'), $minimum, '>='); |
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} |
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} |
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