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<?php |
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/** |
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* Plugin Delete — server-side execution. |
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* |
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* Atomic plugin removal — if the plugin is active, this deactivates it |
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* first then deletes the files. Single tool call, single todo. Runs |
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* in-process under the App Password user's identity via WP core's |
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* `delete_plugins()`. |
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* |
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* The response includes `data.deactivated_first` so the LLM can mention |
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* to the user whether a deactivate step was needed. |
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* |
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* @since 0.0.5 |
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* @package zip-ai |
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*/ |
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|
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namespace ZipAI\MCP\Classes\Abilities\Zipai\System; |
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|
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use ZipAI\MCP\Classes\Abilities\Abstract_Ability; |
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use ZipAI\MCP\Classes\Abilities\Zipai\System\PluginResolver; |
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use ZipAI\MCP\Classes\Core\Response; |
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use ZipAI\MCP\Classes\Core\Tool_Types; |
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|
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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|
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class PluginDelete extends Abstract_Ability { |
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|
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/** |
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* Flags this ability as destructive (mutates site state). |
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* |
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* @var bool |
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*/ |
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protected $is_destructive = true; |
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|
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/** |
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* Configures the ability's id, label, description and metadata. |
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* |
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* @return void |
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*/ |
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public function configure() { |
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$this->id = 'zipai/delete-plugin'; |
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$this->label = 'Delete Plugin'; |
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$this->description = 'Permanently remove a plugin by slug or "folder/file" identifier. Atomic — deactivates first when active. ' |
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. 'Runs in-process under the App-Password user\'s identity. ' |
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. 'Requires `delete_plugins` capability. ' |
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. 'Returns `data.deactivated_first` so you can mention whether a deactivate step was needed.'; |
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$this->capability = 'delete_plugins'; |
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|
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$this->meta = array( |
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'tool_type' => Tool_Types::DELETE, |
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'preflight_resource' => array( |
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'kind' => 'installed_plugin', |
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'arg_field' => 'slug', |
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), |
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); |
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} |
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|
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/** |
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* Returns the tool-type classification for this ability. |
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* |
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* @return string One of the Tool_Types constants. |
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*/ |
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public function get_tool_type() { |
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return Tool_Types::DELETE; |
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} |
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|
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/** |
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* Returns the JSON Schema for this ability's input arguments. |
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* |
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* @return array<string,mixed> JSON Schema describing accepted arguments. |
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*/ |
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public function get_input_schema() { |
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return array( |
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'type' => 'object', |
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'required' => array( 'slug' ), |
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'additionalProperties' => false, |
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'properties' => array( |
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'slug' => array( |
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'type' => 'string', |
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'description' => 'Plugin slug ("contact-form-7") or WP REST plugin id "folder/file" (`.php` extension optional, stripped automatically).', |
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), |
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), |
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); |
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} |
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|
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/** |
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* Deletes a plugin by slug, deactivating it first when active. |
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* |
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* @param array<string,mixed> $args Validated input arguments. |
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* @return array<string,mixed> Standardized success or error response. |
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*/ |
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public function execute( $args ) { |
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$slug = isset( $args['slug'] ) && is_string( $args['slug'] ) ? sanitize_text_field( $args['slug'] ) : ''; |
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if ( '' === $slug ) { |
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return Response::error( 'Plugin slug is required.' ); |
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} |
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// Accept real installed-plugin folder names (underscores/dots), not only |
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// wp.org hyphen-slugs — PluginResolver is the safe arbiter. See plugin-activate.php. |
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if ( ! preg_match( '#^[a-z0-9][\w.-]*(?:/[a-z0-9._-]+(?:\.php)?)?$#i', $slug ) ) { |
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return Response::error( 'Invalid plugin identifier.' ); |
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} |
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|
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if ( ! wp_is_file_mod_allowed( 'zipai_delete_plugin' ) ) { |
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return Response::error( 'Plugin deletion is disabled on this site (DISALLOW_FILE_MODS or the file_mod_allowed filter).' ); |
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} |
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|
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require_once ABSPATH . 'wp-admin/includes/file.php'; |
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require_once ABSPATH . 'wp-admin/includes/plugin.php'; |
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|
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$plugin_file = PluginResolver::resolve_plugin_file( $slug ); |
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if ( null === $plugin_file ) { |
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return Response::error( sprintf( 'Plugin "%s" is not installed.', $slug ) ); |
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} |
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|
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// Self-preservation: this ability runs INSIDE ZIP AI — deleting it |
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// here removes the assistant itself (chat, tools, this connection) |
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// mid-action. Fail closed; wp-admin → Plugins is the supported path. |
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if ( PluginResolver::is_self( $plugin_file ) ) { |
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return Response::error( |
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sprintf( 'Refused: "%s" is the ZIP AI plugin, which runs this AI assistant — deleting it from here would remove the chat, all tools, and this connection mid-action.', $slug ), |
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'Leave ZIP AI installed and continue the remaining work. If the user explicitly wants ZIP AI removed, tell them to delete it in wp-admin → Plugins.' |
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); |
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} |
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|
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// Atomic-from-the-LLM's-POV: deactivate first when active so the |
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// caller doesn't have to chain two tool calls. WP core's |
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// `delete_plugins()` refuses with `could_not_remove_plugin` if |
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// the plugin is still active. |
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$deactivated_first = false; |
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if ( is_plugin_active( $plugin_file ) ) { |
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deactivate_plugins( array( $plugin_file ), true ); |
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$deactivated_first = true; |
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} |
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|
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// `delete_plugins()` requires `WP_Filesystem` to be available. |
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// On FTP-mode hosts without stored creds it returns `null` — we |
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// surface that as a clear error rather than letting it look |
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// like success. |
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if ( ! WP_Filesystem() ) { |
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return Response::error( |
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'Filesystem credentials required for plugin delete. ' |
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. 'Configure FS_METHOD or store FTP credentials in wp-config.php.' |
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); |
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} |
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|
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$result = delete_plugins( array( $plugin_file ) ); |
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if ( is_wp_error( $result ) ) { |
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return Response::error( sprintf( 'Delete failed: %s', $result->get_error_message() ) ); |
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} |
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if ( null === $result ) { |
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return Response::error( 'Filesystem unavailable — plugin not deleted.' ); |
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} |
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|
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wp_clean_plugins_cache(); |
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|
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return array( |
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'success' => true, |
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'message' => sprintf( |
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'Plugin "%s" deleted%s.', |
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$slug, |
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$deactivated_first ? ' (deactivated first)' : '' |
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), |
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'data' => array( |
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'slug' => $slug, |
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'plugin_file' => $plugin_file, |
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'deactivated_first' => $deactivated_first, |
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), |
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); |
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} |
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|
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/** |
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* Returns the JSON Schema for this ability's response. |
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* |
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* @return array<string,mixed> JSON Schema describing the response shape. |
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*/ |
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public function get_output_schema() { |
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return array( |
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'type' => 'object', |
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'required' => array( 'success' ), |
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'additionalProperties' => true, |
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'properties' => array( |
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'success' => array( 'type' => 'boolean' ), |
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'message' => array( 'type' => 'string' ), |
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'data' => array( |
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'type' => 'object', |
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'properties' => array( |
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'slug' => array( 'type' => 'string' ), |
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'plugin_file' => array( 'type' => 'string' ), |
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'deactivated_first' => array( 'type' => 'boolean' ), |
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), |
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), |
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), |
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); |
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} |
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} |
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|
