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Code Engine – PHP Snippets, AI Functions & Automation for WordPress / 0.5.7
Code Engine – PHP Snippets, AI Functions & Automation for WordPress v0.5.7
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← All changes | classes/core.php +252 -104 0.3.70.5.7 View file →
@@ -14,8 +14,12 @@
14 14 public $site_url = null;
15 15 public $mwcode = null;
16 16 public $licenser = null;
17 17
18 + // IDs of global snippets already executed this request (by the plugins_loaded pass
19 + // or by load_global_snippets), so a global never runs twice and never re-declares.
20 + public $loaded_global_ids = [];
21 +
18 22 private $option_name = 'mwcode_options';
19 23
20 24 public function __construct() {
21 25 global $mwcode;
@@ -20,9 +24,9 @@
20 24 public function __construct() {
21 25 global $mwcode;
22 26
23 27 $this->site_url = get_site_url();
24 - $this->is_rest = MeowCommon_Helpers::is_rest();
28 + $this->is_rest = MeowKit_MWCODE_Helpers::is_rest();
25 29 $this->is_cli = defined( 'WP_CLI' ) && WP_CLI;
26 30
27 31 // Snippets
28 32 $snippet = new Meow_MWCODE_Modules_Snippet( $this );
@@ -39,10 +43,10 @@
39 43 }
40 44
41 45 function init() {
42 46 // Initialize the licenser for Pro version
43 - if ( class_exists( 'MeowCommonPro_Licenser' ) ) {
44 - $this->licenser = new MeowCommonPro_Licenser( MWCODE_PREFIX, MWCODE_ENTRY, MWCODE_DOMAIN, MWCODE_ITEM_ID, MWCODE_VERSION );
47 + if ( class_exists( 'MeowKitPro_MWCODE_Licenser' ) ) {
48 + $this->licenser = new MeowKitPro_MWCODE_Licenser( MWCODE_PREFIX, MWCODE_ENTRY, MWCODE_DOMAIN, MWCODE_ITEM_ID, MWCODE_VERSION );
45 49 }
46 50
47 51 // Part of the core, settings and stuff
48 52 $this->admin = new Meow_MWCODE_Admin( $this );
@@ -102,8 +106,9 @@
102 106
103 107 //AI
104 108 "ai_suggestions" => false,
105 109 "ai_engine_status"=> false,
110 + "mwai_active" => false,
106 111 "ai_engine_message" => "",
107 112
108 113 //API
109 114 "api_endpoint" => false,
@@ -110,8 +115,12 @@
110 115 "api_token" => md5( time() . rand() ),
111 116
112 117 //MCP
113 118 "mcp_support" => false,
119 + "mcp_functions" => false,
120 +
121 + //MAINTENANCE
122 + "clean_uninstall" => false,
114 123 ];
115 124 }
116 125
117 126 function get_all_options( ) {
@@ -125,19 +134,15 @@
125 134 return $options;
126 135 }
127 136
128 137 function update_options( $options ) {
129 - $current_options = get_option($this->option_name);
130 138
131 - if ($current_options === $options) {
132 - // $this->log('💾 The options are already the expected value.');
133 - } else {
134 - if ( !update_option( $this->option_name, $options, false ) ) {
135 - $this->log( '💾 There was an issue updating the options.' );
136 - }
139 + $options = $this->sanitize_options( $options );
140 +
141 + if ( !update_option( $this->option_name, $options, false ) ) {
142 + //$this->log( '💾 There was an issue updating the options.' );
137 143 }
138 -
139 - $options = $this->sanitize_options( $options );
144 +
140 145 return $options;
141 146 }
142 147
143 148 function update_option( $option, $value ) {
@@ -168,9 +173,9 @@
168 173 $options_modified = true;
169 174 }
170 175
171 176 // Update AI Engine status
172 - $options_modified = $this->updateAIEngineStatus( $options ) || $options_modified;
177 + $options = $this->updateAIEngineStatus( $options );
173 178
174 179 // Disable AI related features if AI Engine is not available
175 180 if ( ! $options['ai_engine_status'] ) {
176 181 if ( $options['ai_suggestions'] !== false ) {
@@ -180,12 +185,8 @@
180 185 // Note: We don't disable MCP support here anymore
181 186 // It will be checked at runtime in the MCP class
182 187 }
183 188
184 - if ( $options_modified ) {
185 - update_option( $this->option_name, $options, false );
186 - }
187 -
188 189 return $options;
189 190 }
190 191
191 192 private function updateAIEngineStatus( &$options ) {
@@ -190,31 +191,17 @@
190 191
191 192 private function updateAIEngineStatus( &$options ) {
192 193 global $mwai;
193 194
194 - if ( is_null( $mwai ) || ! isset( $mwai ) ) {
195 - $options['ai_engine_status'] = false;
196 - $options['ai_engine_message'] = 'AI Engine is not available.';
197 - return true;
198 - }
195 + // AI Engine is active (regardless of whether an API key is configured).
196 + // MCP exposure only needs AI Engine present, not a key, so the MCP toggles
197 + // gate on this rather than on mwai_has_ai.
198 + $options['mwai_active'] = !empty( $mwai );
199 + $options['mwai_has_ai'] = !empty( $mwai ) && method_exists( $mwai, 'hasAI' ) && $mwai->hasAI();
200 + // Legacy
201 + $options['ai_engine_status'] = $options['mwai_has_ai'];
199 202
200 - try {
201 - $status = $mwai->checkStatus();
202 -
203 - if ( $options['ai_engine_status'] != true || $options['ai_engine_message'] != $status ) {
204 - $options['ai_engine_status'] = true;
205 - $options['ai_engine_message'] = $status;
206 - return true;
207 - }
208 - } catch ( Exception $e ) {
209 - if ( $options['ai_engine_status'] != false || $options['ai_engine_message'] != $e->getMessage() ) {
210 - $options['ai_engine_status'] = false;
211 - $options['ai_engine_message'] = $e->getMessage();
212 - return true;
213 - }
214 - }
215 -
216 - return false;
203 + return $options;
217 204 }
218 205
219 206 #endregion
220 207
@@ -243,9 +230,24 @@
243 230
244 231 $this->snippet->validate( $params );
245 232
246 233 $params = $this->snippet->formatParamsForDatabase( $params );
247 - $result = $this->snippet->insert( $params );
234 +
235 + // Route to UPDATE when an existing snippet id is provided (updateSnippet / the
236 + // MCP mwcode_update_snippet tool). This previously always insert()ed, so an
237 + // update tried to INSERT a row with an already-used primary key: that fails on
238 + // the SQLite backend (Studio/Playground) with "Could not insert the snippet",
239 + // and duplicates or errors elsewhere. The admin UI was unaffected because it
240 + // calls snippet->update() directly.
241 + $existing = !empty( $params['id'] ) ? $this->snippet->select_one( $params['id'] ) : null;
242 + if ( $existing ) {
243 + $this->snippet->update( $params );
244 + $result = $params['id'];
245 + }
246 + else {
247 + unset( $params['id'] );
248 + $result = $this->snippet->insert( $params );
249 + }
248 250 $snippet = $this->snippet->select_one( $result );
249 251
250 252 if( $result ) {
251 253 $params['id'] = (string)$result;
@@ -285,16 +287,16 @@
285 287 $value = array_map( 'trim', $value );
286 288 }
287 289
288 290 if ( $type === 'array' ) {
289 - $value = json_encode( $value );
290 - $value = str_replace( '\\', '', $value );
291 + // Convert to PHP array format instead of JSON
292 + $value = var_export( $value, true );
291 293 }
292 294
293 295 return [ $name, $value ];
294 296 }
295 297
296 - function run_non_fn_snippet( $id, $code = null, $test = false ) {
298 + function run_non_fn_snippet( $id, $code = null, $test = false, $prefix = '' ) {
297 299 // Retrieve the snippet code from the provided code or via the snippet ID.
298 300 if ( $code ) {
299 301 $snippet = [ 'code' => $code ];
300 302 } else {
@@ -301,13 +303,17 @@
301 303 $snippet = $this->get_snippet( $id );
302 304 }
303 305
304 306 // Remove any PHP opening tag.
305 - $snippet['code'] = preg_replace( '/<\?php/', '', $snippet['code'], 1 );
307 + $snippet['code'] = $this->snippet->sanitize_code( $snippet['code'] );
306 308
307 309 if ( $test ) {
308 310 $snippet['code'] = preg_replace( '/echo\s+(.+?);/s', 'echo $1 . "\n";', $snippet['code'] );
309 311 }
312 +
313 + if( $prefix ) {
314 + $snippet['code'] = $prefix . "\n" . $snippet['code'];
315 + }
310 316
311 317 $error = null;
312 318 $output = null;
313 319
@@ -356,35 +362,17 @@
356 362 'values' => $snippet['functionArgsDict'] // Contains the default values of the arguments
357 363 ];
358 364 }
359 365
360 - // Sanitize all the arguments if the option is enabled
361 - if ( $this->get_option( 'sanitize_arguments', true ) ) {
366 + // Arguments used to be sanitized into PHP-literal strings here (quoting,
367 + // esc_sql, var_export) so they could be concatenated into a string of PHP and
368 + // eval-ed. That is gone: the function is now called with call_user_func_array
369 + // (see below), so values are passed as data and need no literal-formatting.
370 + // The old formatting also prefixed argument keys with "$" via sanitize_arg,
371 + // which stored the provided value under "$name" while the call read "name", so
372 + // provided arguments never reached the function. Passing the raw values through
373 + // fixes both issues at once.
362 374
363 - if ( $args ) {
364 - foreach ( $args as $name => $value ) {
365 - list( $sanitizedName, $sanitizedValue ) = $this->sanitize_arg( $name, $value );
366 - unset( $args[$name] );
367 -
368 - $args[$sanitizedName] = $sanitizedValue;
369 - }
370 - }
371 -
372 - foreach ( $params['values'] as $name => $value ) {
373 -
374 - if( array_key_exists( 'input', $value) ) {
375 - list( $sanitizedInputName, $sanitizedInputValue ) = $this->sanitize_arg( $name, $value['input'], $value['type'] );
376 - $params['values'][$sanitizedInputName]['input'] = $sanitizedInputValue;
377 - }
378 -
379 - if( array_key_exists( 'default', $value) ) {
380 - list( $sanitizedDefaultValueName, $sanitizedDefaultValue ) = $this->sanitize_arg( $name, $value['default'], $value['type'] );
381 - $params['values'][$sanitizedDefaultValueName]['default'] = $sanitizedDefaultValue;
382 - }
383 - }
384 -
385 - }
386 -
387 375 // Make sure the function is existing and is the one in the snippet
388 376 if ( empty( $params['code'] ) ) {
389 377 throw new Exception( 'Code Engine: The snippet code appears to be empty.' );
390 378 }
@@ -392,17 +380,32 @@
392 380 if ( empty( $params['name'] ) || ! str_contains( $params['code'], $params['name'] ) ) {
393 381 throw new Exception( "Code Engine: Function name does not match. The name should be {$params['name']}." );
394 382 }
395 383
396 - // Overwrite the default values with the provided ones
384 + // Collect the provided values, keyed by their normalized (dollar-less) name.
385 + // Incoming keys come from the AI/MCP schema, where register_function_tools()
386 + // strips a leading "$" from the declared name. The stored arg names can still
387 + // carry the "$", so we normalize both sides before matching below. Without this
388 + // a value provided as "style" never binds to an argument declared "$style".
389 + $provided = [];
397 390 if ( $args ) {
398 391 foreach ( $args as $name => $value ) {
399 - $params['values'][$name]['input'] = $value;
392 + $provided[ ltrim( $name, '$' ) ] = $value;
400 393 }
401 394
402 395 $this->log( '⚡ Arguments provided: ' . json_encode( $args ) );
403 396 }
404 397
398 + // Global snippets are meant to be always accessible. On non-whitelisted REST routes
399 + // (Workflow Engine, MCP, AI function-calling) the plugins_loaded pass blocks them, so
400 + // make sure their helper library is loaded before we run a function that may call it.
401 + $this->load_global_snippets();
402 +
403 + // Make every *other* active PHP function snippet available so this function can
404 + // call its siblings. We pass the current name as the exception so the target is
405 + // still defined below (with the edited/test code when testing), not pre-defined here.
406 + $this->define_all_functions( $params['name'] );
407 +
405 408 // Check if the function has already been defined
406 409 if ( !in_array( $params['name'], $defined_functions ) ) {
407 410
408 411 // If not, proceed with modification and definition
@@ -420,30 +423,32 @@
420 423 // If already defined, just prepare to call the function without redefining it
421 424 $params['code'] = '';
422 425 }
423 426
424 - // Prepare the code to be executed
425 - $params['code'] .= "\n\$mwcode_result = {$params['name']}(";
426 - foreach ( $params['args'] as $index => $arg ) {
427 - $value = 'null'; // In case the argument is not provided it will be null
428 -
429 - if ( array_key_exists( $arg, $params['values'] ) ) { // Avoid warnings if the argument is not provided
430 -
431 - // If the argument is provided, use it, if not use the default value
432 - if ( !empty( $params['values'][$arg]['input'] ) ) {
433 - $value = $params['values'][$arg]['input'];
434 -
435 - } else if ( !empty( $params['values'][$arg]['default'] ) ) {
436 - $value = $params['values'][$arg]['default'];
437 - }
427 + // Resolve the arguments as REAL PHP values, in the function's declared order.
428 + // The previous version concatenated each value into a string of PHP and eval-ed
429 + // the call, which broke on any string or edge-case value with a parse error
430 + // ("syntax error, unexpected token ')'"). call_user_func_array passes them as
431 + // data, so no value can ever corrupt the call syntax.
432 + $callArgs = [];
433 + foreach ( $params['args'] as $arg ) {
434 + $key = ltrim( $arg, '$' ); // Match the normalized name the caller sent.
435 + $value = null; // Not provided and no default -> null.
436 + // array_key_exists, not !empty: a legitimately provided 0, "0", "" or false
437 + // must reach the function instead of silently falling back to the default.
438 + if ( array_key_exists( $key, $provided ) ) {
439 + $value = $provided[ $key ];
440 + } else if ( isset( $params['values'][$arg]['default'] ) && $params['values'][$arg]['default'] !== '' ) {
441 + $value = $params['values'][$arg]['default'];
438 442 }
439 -
440 - $params['code'] .= "{$value}";
441 - if ( $index < count( $params['args'] ) - 1 ) {
442 - $params['code'] .= ', ';
443 + // An array-typed argument can arrive as a string like "[1, 2, 3]"; turn it
444 + // into a real array so the function receives what its signature expects.
445 + if ( ( $params['values'][$arg]['type'] ?? null ) === 'array' && is_string( $value ) ) {
446 + $decoded = json_decode( $value, true );
447 + $value = is_array( $decoded ) ? $decoded : array_map( 'trim', explode( ',', trim( $value, "[] \t\n\r" ) ) );
443 448 }
449 + $callArgs[] = $value;
444 450 }
445 - $params['code'] .= ");\necho print_r(\$mwcode_result, true);";
446 451
447 452 $error = null;
448 453 $output = null;
449 454
@@ -448,20 +453,28 @@
448 453 $output = null;
449 454
450 455 try {
451 456 ob_start();
452 - eval( $params['code'] );
457 + // $params['code'] holds the function definition (empty if it was already
458 + // defined earlier this request). Declare it, then invoke it as data.
459 + if ( $params['code'] !== '' ) {
460 + eval( $params['code'] );
461 + }
462 + $mwcode_result = call_user_func_array( $params['name'], $callArgs );
463 + echo print_r( $mwcode_result, true );
453 464 $output = ob_get_clean();
454 -
455 - if ( $params['test'] ){
465 +
466 + if ( $params['test'] ) {
456 467 $output = explode( "\n", $output );
457 468 }
458 -
469 +
459 470 } catch ( Throwable $e ) {
460 471 //$this->log('Code Engine: Error executing the function: ' . $e->getMessage());
461 472 $error = new Exception(' Error executing the function, ' . $e->getMessage());
462 473
463 - ob_clean();
474 + if ( ob_get_level() > 0 ) {
475 + ob_end_clean();
476 + }
464 477 } finally {
465 478 restore_error_handler();
466 479 }
467 480
@@ -515,8 +528,132 @@
515 528
516 529 return null;
517 530 }
518 531
532 + /**
533 + * Load the active global snippets (persistent + backend/frontend for this context)
534 + * that haven't already run this request, so on-demand function execution has the same
535 + * always-available helper library a normal page load would. Callable functions are
536 + * typically small wrappers around these globals.
537 + *
538 + * On non-whitelisted REST routes (Workflow Engine, MCP, AI function-calling) the
539 + * plugins_loaded pass blocks global snippets for safety; this restores them for the
540 + * deliberate, authorized act of executing a snippet. The loaded-id registry guarantees
541 + * each global runs at most once per request, so nothing is ever re-declared.
542 + */
543 + function load_global_snippets() {
544 + global $current_mwcode_snippet;
545 + static $done = false;
546 + if ( $done ) {
547 + return;
548 + }
549 + $done = true;
550 +
551 + if ( empty( $this->snippet ) ) {
552 + $this->snippet = new Meow_MWCODE_Modules_Snippet( $this );
553 + }
554 +
555 + $scope = is_admin() ? [ 'backend', 'persistent' ] : [ 'frontend', 'persistent' ];
556 +
557 + $snippets = $this->snippet->select(
558 + null, // offset
559 + -1, // limit (all)
560 + [
561 + [ 'accessor' => 'active', 'value' => 1 ],
562 + [ 'accessor' => 'scope', 'value' => $scope ],
563 + ],
564 + [ 'accessor' => 'priority', 'by' => 'DESC' ]
565 + )['data'] ?? [];
566 +
567 + foreach ( $snippets as $snippet ) {
568 + // Skip globals already executed this request (e.g. by the plugins_loaded pass).
569 + if ( in_array( $snippet['id'], $this->loaded_global_ids ) ) {
570 + continue;
571 + }
572 + $this->loaded_global_ids[] = $snippet['id'];
573 +
574 + $code = $this->snippet->sanitize_code( $snippet['code'] );
575 + $current_mwcode_snippet = $snippet;
576 + try {
577 + ob_start();
578 + eval( $code );
579 + ob_end_clean();
580 + } catch ( Throwable $e ) {
581 + ob_end_clean();
582 + $this->log( "⚠️ Code Engine: Failed to load global snippet \"{$snippet['name']}\": " . $e->getMessage() );
583 + }
584 + }
585 + $current_mwcode_snippet = null;
586 + }
587 +
588 + /**
589 + * Declare every active PHP function snippet in the current request, without
590 + * invoking any of them, so function snippets can call one another.
591 + *
592 + * Function snippets are not auto-loaded on every request (unlike global/backend/
593 + * frontend scopes) — they are meant to run on demand. This is the PHP counterpart
594 + * to get_js_functions_to_push(): it makes the whole library of functions callable
595 + * before a function is executed (via REST, MCP, AI function-calling, Workflow Engine).
596 + *
597 + * Idempotent: a static guard runs the full pass only once per request, and each
598 + * definition is wrapped in function_exists() so nothing is ever redefined.
599 + *
600 + * @param string|null $except Function name to skip (the one run_snippet is about to
601 + * define itself, so edited/test code keeps priority).
602 + */
603 + function define_all_functions( $except = null ) {
604 + static $loaded = false;
605 + if ( $loaded ) {
606 + return;
607 + }
608 + $loaded = true;
609 +
610 + if ( empty( $this->snippet ) ) {
611 + $this->snippet = new Meow_MWCODE_Modules_Snippet( $this );
612 + }
613 +
614 + // One query for every active function snippet (code included), then enrich with
615 + // the function metadata (name + target) the same way run_snippet does.
616 + $snippets = $this->snippet->select(
617 + null, // offset
618 + -1, // limit (all)
619 + [
620 + [ 'accessor' => 'active', 'value' => 1 ],
621 + [ 'accessor' => 'scope', 'value' => 'function' ],
622 + ],
623 + [] // sort
624 + )['data'] ?? [];
625 +
626 + if ( empty( $snippets ) ) {
627 + return;
628 + }
629 +
630 + $this->snippet->get_function_snippets_data( $snippets );
631 +
632 + foreach ( $snippets as $snippet ) {
633 + $name = $snippet['functionName'] ?? '';
634 + $target = strtolower( $snippet['functionTarget'] ?? 'php' );
635 +
636 + // Skip JS functions (pushed to the front-end separately), the function the
637 + // caller will define itself, and anything already declared in this request.
638 + if ( $name === '' || $target === 'js' || $name === $except || function_exists( $name ) ) {
639 + continue;
640 + }
641 +
642 + // Mirror run_snippet()'s non-test handling: drop echo statements, then declare
643 + // (never call) the function, guarded so a later run_snippet() call is a no-op.
644 + $code = $this->snippet->sanitize_code( $snippet['code'] );
645 + $code = preg_replace( '/echo\s+(.+?);/s', '', $code );
646 + $code = "if (!function_exists('{$name}')) {\n{$code}\n}\n";
647 +
648 + try {
649 + eval( $code );
650 + } catch ( Throwable $e ) {
651 + $this->log( "⚠️ Code Engine: Failed to pre-define function \"{$name}\": " . $e->getMessage() );
652 + }
653 + }
654 + }
655 +
519 656 public function get_js_functions_to_push() {
520 657 $functions = $this->snippet->get_functions();
521 658 $js_functions = [];
522 659 foreach ( $functions as &$function ) {
@@ -587,9 +724,9 @@
587 724 */
588 725 public function execute_active_snippets() {
589 726
590 727 $blocked = false;
591 - $page = isset( $_GET["page"] ) ? sanitize_text_field( $_GET["page"] ) : null;
728 + $page = isset( $_GET["page"] ) ? sanitize_text_field( $_GET["page"] ) : '';
592 729
593 730
594 731 if ( $page === 'mwcode_settings' ) {
595 732 // If we blocks global snippets like nonce_life filter, we would block the settings page so let's remove the block for this page
@@ -597,9 +734,9 @@
597 734 $blocked = false;
598 735 //$blocked = true;
599 736 }
600 737 // Block REST requests that aren't whitelisted
601 - elseif ( MeowCommon_Helpers::is_rest() && !Meow_MWCODE_Core::is_white_listed_rest() ) {
738 + elseif ( MeowKit_MWCODE_Helpers::is_rest() && !Meow_MWCODE_Core::is_white_listed_rest() ) {
602 739 $blocked = true;
603 740 }
604 741
605 742 if ( empty( $this->snippet ) ) {
@@ -630,9 +767,9 @@
630 767 return;
631 768 }
632 769
633 770 $snippets = array_map( function ( $snippet ) use ( $blocked ) {
634 - $snippet['code'] = preg_replace( '/<\?php/', '', $snippet['code'], 1 );
771 + $snippet['code'] = $this->snippet->sanitize_code( $snippet['code'] );
635 772 $snippet['blocked'] = $blocked;
636 773
637 774 // If the snippet must be executed only in the frontend, we bypass the block
638 775 if ( !is_admin() && $snippet['scope'] === 'frontend' ) {
@@ -648,16 +785,26 @@
648 785
649 786 #endregion
650 787
651 788 #region Shortcodes
789 + function separate_mwcode_atts( $atts ) {
652 790
791 + if( array_key_exists( 'id', $atts ) ) unset( $atts['id'] );
792 + if( array_key_exists( 'target', $atts ) ) unset( $atts['target'] );
793 + if( array_key_exists( 'code', $atts ) ) unset( $atts['code'] );
794 +
795 + return $atts;
796 + }
797 +
653 798 function content_shortcode( $atts ) {
654 799
800 + $user_atts = $this->separate_mwcode_atts( $atts );
801 +
655 802 $atts = shortcode_atts( array(
656 - 'id' => null,
657 - 'target' => null,
658 - 'code' => null,
659 - ), $atts );
803 + 'id' => null,
804 + 'target' => null, // js or php
805 + 'code' => null, // For Guttenberg block usage
806 + ), $atts, 'code-engine' );
660 807
661 808 $id = $atts['id'];
662 809 $target = $atts['target'];
663 810 $code = $atts['code'];
@@ -740,9 +887,10 @@
740 887 $output = '<script>' . $snippet['code'] . '</script>';
741 888 }
742 889
743 890 if ( $is_content_php ) {
744 - $output = $this->run_non_fn_snippet( $id );
891 + $prefix = "\$mwcode_atts = unserialize( '" . serialize( $user_atts ) . "' );";
892 + $output = $this->run_non_fn_snippet( $id, null, false, $prefix );
745 893 }
746 894
747 895 return $output;
748 896 }