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2aa91ff2 S |
1 | <?php |
2 | /** | |
3 | * Smarty plugin | |
4 | * | |
5 | * @package Smarty | |
6 | * @subpackage Security | |
7 | * @author Uwe Tews | |
8 | */ | |
9 | ||
10 | /* | |
11 | * FIXME: Smarty_Security API | |
12 | * - getter and setter instead of public properties would allow cultivating an internal cache properly | |
13 | * - current implementation of isTrustedResourceDir() assumes that Smarty::$template_dir and Smarty::$config_dir are immutable | |
14 | * the cache is killed every time either of the variables change. That means that two distinct Smarty objects with differing | |
15 | * $template_dir or $config_dir should NOT share the same Smarty_Security instance, | |
16 | * as this would lead to (severe) performance penalty! how should this be handled? | |
17 | */ | |
18 | ||
19 | /** | |
20 | * This class does contain the security settings | |
21 | */ | |
22 | class Smarty_Security | |
23 | { | |
24 | /** | |
25 | * This determines how Smarty handles "<?php ... ?>" tags in templates. | |
26 | * possible values: | |
27 | * <ul> | |
28 | * <li>Smarty::PHP_PASSTHRU -> echo PHP tags as they are</li> | |
29 | * <li>Smarty::PHP_QUOTE -> escape tags as entities</li> | |
30 | * <li>Smarty::PHP_REMOVE -> remove php tags</li> | |
31 | * <li>Smarty::PHP_ALLOW -> execute php tags</li> | |
32 | * </ul> | |
33 | * | |
34 | * @var integer | |
35 | */ | |
36 | public $php_handling = Smarty::PHP_PASSTHRU; | |
37 | /** | |
38 | * This is the list of template directories that are considered secure. | |
39 | * $template_dir is in this list implicitly. | |
40 | * | |
41 | * @var array | |
42 | */ | |
43 | public $secure_dir = array(); | |
44 | /** | |
45 | * This is an array of directories where trusted php scripts reside. | |
46 | * {@link $security} is disabled during their inclusion/execution. | |
47 | * | |
48 | * @var array | |
49 | */ | |
50 | public $trusted_dir = array(); | |
51 | /** | |
52 | * List of regular expressions (PCRE) that include trusted URIs | |
53 | * | |
54 | * @var array | |
55 | */ | |
56 | public $trusted_uri = array(); | |
ccd27f54 S |
57 | /** |
58 | * List of trusted constants names | |
59 | * | |
60 | * @var array | |
61 | */ | |
62 | public $trusted_constants = array(); | |
2aa91ff2 S |
63 | /** |
64 | * This is an array of trusted static classes. | |
65 | * If empty access to all static classes is allowed. | |
66 | * If set to 'none' none is allowed. | |
67 | * | |
68 | * @var array | |
69 | */ | |
70 | public $static_classes = array(); | |
ccd27f54 S |
71 | |
72 | /** | |
73 | * This is an nested array of trusted classes and static methods. | |
74 | * If empty access to all static classes and methods is allowed. | |
75 | * Format: | |
76 | * array ( | |
77 | * 'class_1' => array('method_1', 'method_2'), // allowed methods listed | |
78 | * 'class_2' => array(), // all methods of class allowed | |
79 | * ) | |
80 | * If set to null none is allowed. | |
81 | * | |
82 | * @var array | |
83 | */ | |
84 | public $trusted_static_methods = array(); | |
85 | ||
86 | /** | |
87 | * This is an array of trusted static properties. | |
88 | * If empty access to all static classes and properties is allowed. | |
89 | * Format: | |
90 | * array ( | |
91 | * 'class_1' => array('prop_1', 'prop_2'), // allowed properties listed | |
92 | * 'class_2' => array(), // all properties of class allowed | |
93 | * ) | |
94 | * If set to null none is allowed. | |
95 | * | |
96 | * @var array | |
97 | */ | |
98 | public $trusted_static_properties = array(); | |
2aa91ff2 S |
99 | /** |
100 | * This is an array of trusted PHP functions. | |
101 | * If empty all functions are allowed. | |
102 | * To disable all PHP functions set $php_functions = null. | |
103 | * | |
104 | * @var array | |
105 | */ | |
106 | public $php_functions = array( | |
107 | 'isset', 'empty', | |
108 | 'count', 'sizeof', | |
109 | 'in_array', 'is_array', | |
110 | 'time', | |
2aa91ff2 S |
111 | ); |
112 | /** | |
113 | * This is an array of trusted PHP modifiers. | |
114 | * If empty all modifiers are allowed. | |
115 | * To disable all modifier set $php_modifiers = null. | |
116 | * | |
117 | * @var array | |
118 | */ | |
119 | public $php_modifiers = array( | |
120 | 'escape', | |
cd8826ea S |
121 | 'count', |
122 | 'nl2br', | |
2aa91ff2 S |
123 | ); |
124 | /** | |
125 | * This is an array of allowed tags. | |
126 | * If empty no restriction by allowed_tags. | |
127 | * | |
128 | * @var array | |
129 | */ | |
130 | public $allowed_tags = array(); | |
131 | /** | |
132 | * This is an array of disabled tags. | |
133 | * If empty no restriction by disabled_tags. | |
134 | * | |
135 | * @var array | |
136 | */ | |
137 | public $disabled_tags = array(); | |
138 | /** | |
139 | * This is an array of allowed modifier plugins. | |
140 | * If empty no restriction by allowed_modifiers. | |
141 | * | |
142 | * @var array | |
143 | */ | |
144 | public $allowed_modifiers = array(); | |
145 | /** | |
146 | * This is an array of disabled modifier plugins. | |
147 | * If empty no restriction by disabled_modifiers. | |
148 | * | |
149 | * @var array | |
150 | */ | |
151 | public $disabled_modifiers = array(); | |
ccd27f54 S |
152 | /** |
153 | * This is an array of disabled special $smarty variables. | |
154 | * | |
155 | * @var array | |
156 | */ | |
157 | public $disabled_special_smarty_vars = array(); | |
2aa91ff2 S |
158 | /** |
159 | * This is an array of trusted streams. | |
160 | * If empty all streams are allowed. | |
161 | * To disable all streams set $streams = null. | |
162 | * | |
163 | * @var array | |
164 | */ | |
165 | public $streams = array('file'); | |
166 | /** | |
167 | * + flag if constants can be accessed from template | |
168 | * | |
169 | * @var boolean | |
170 | */ | |
171 | public $allow_constants = true; | |
172 | /** | |
173 | * + flag if super globals can be accessed from template | |
174 | * | |
175 | * @var boolean | |
176 | */ | |
177 | public $allow_super_globals = true; | |
ccd27f54 S |
178 | /** |
179 | * max template nesting level | |
180 | * | |
181 | * @var int | |
182 | */ | |
183 | public $max_template_nesting = 0; | |
184 | /** | |
185 | * current template nesting level | |
186 | * | |
187 | * @var int | |
188 | */ | |
189 | private $_current_template_nesting = 0; | |
2aa91ff2 S |
190 | /** |
191 | * Cache for $resource_dir lookup | |
192 | * | |
193 | * @var array | |
194 | */ | |
195 | protected $_resource_dir = null; | |
196 | /** | |
197 | * Cache for $template_dir lookup | |
198 | * | |
199 | * @var array | |
200 | */ | |
201 | protected $_template_dir = null; | |
202 | /** | |
203 | * Cache for $config_dir lookup | |
204 | * | |
205 | * @var array | |
206 | */ | |
207 | protected $_config_dir = null; | |
208 | /** | |
209 | * Cache for $secure_dir lookup | |
210 | * | |
211 | * @var array | |
212 | */ | |
213 | protected $_secure_dir = null; | |
214 | /** | |
215 | * Cache for $php_resource_dir lookup | |
216 | * | |
217 | * @var array | |
218 | */ | |
219 | protected $_php_resource_dir = null; | |
220 | /** | |
221 | * Cache for $trusted_dir lookup | |
222 | * | |
223 | * @var array | |
224 | */ | |
225 | protected $_trusted_dir = null; | |
226 | ||
227 | /** | |
228 | * @param Smarty $smarty | |
229 | */ | |
230 | public function __construct($smarty) | |
231 | { | |
232 | $this->smarty = $smarty; | |
233 | } | |
234 | ||
235 | /** | |
236 | * Check if PHP function is trusted. | |
237 | * | |
238 | * @param string $function_name | |
239 | * @param object $compiler compiler object | |
240 | * | |
241 | * @return boolean true if function is trusted | |
242 | * @throws SmartyCompilerException if php function is not trusted | |
243 | */ | |
244 | public function isTrustedPhpFunction($function_name, $compiler) | |
245 | { | |
246 | if (isset($this->php_functions) && (empty($this->php_functions) || in_array($function_name, $this->php_functions))) { | |
247 | return true; | |
248 | } | |
249 | ||
250 | $compiler->trigger_template_error("PHP function '{$function_name}' not allowed by security setting"); | |
251 | ||
252 | return false; // should not, but who knows what happens to the compiler in the future? | |
253 | } | |
254 | ||
255 | /** | |
256 | * Check if static class is trusted. | |
257 | * | |
258 | * @param string $class_name | |
259 | * @param object $compiler compiler object | |
260 | * | |
261 | * @return boolean true if class is trusted | |
262 | * @throws SmartyCompilerException if static class is not trusted | |
263 | */ | |
264 | public function isTrustedStaticClass($class_name, $compiler) | |
265 | { | |
266 | if (isset($this->static_classes) && (empty($this->static_classes) || in_array($class_name, $this->static_classes))) { | |
267 | return true; | |
268 | } | |
269 | ||
270 | $compiler->trigger_template_error("access to static class '{$class_name}' not allowed by security setting"); | |
271 | ||
272 | return false; // should not, but who knows what happens to the compiler in the future? | |
273 | } | |
274 | ||
ccd27f54 S |
275 | /** |
276 | * Check if static class method/property is trusted. | |
277 | * | |
278 | * @param string $class_name | |
279 | * @param string $params | |
280 | * @param object $compiler compiler object | |
281 | * | |
282 | * @return boolean true if class method is trusted | |
283 | * @throws SmartyCompilerException if static class method is not trusted | |
284 | */ | |
285 | public function isTrustedStaticClassAccess($class_name, $params, $compiler) | |
286 | { | |
287 | if (!isset($params[2])) { | |
288 | // fall back | |
289 | return $this->isTrustedStaticClass($class_name, $compiler); | |
290 | } | |
291 | if ($params[2] == 'method') { | |
292 | $allowed = $this->trusted_static_methods; | |
293 | $name = substr($params[0], 0, strpos($params[0], '(')); | |
294 | } else { | |
295 | $allowed = $this->trusted_static_properties; | |
296 | // strip '$' | |
297 | $name = substr($params[0], 1); | |
298 | } | |
299 | if (isset($allowed)) { | |
300 | if (empty($allowed)) { | |
301 | // fall back | |
302 | return $this->isTrustedStaticClass($class_name, $compiler); | |
303 | } | |
304 | if (isset($allowed[$class_name]) | |
305 | && (empty($allowed[$class_name]) | |
306 | || in_array($name, $allowed[$class_name])) | |
307 | ) { | |
308 | return true; | |
309 | } | |
310 | } | |
311 | $compiler->trigger_template_error("access to static class '{$class_name}' {$params[2]} '{$name}' not allowed by security setting"); | |
312 | return false; // should not, but who knows what happens to the compiler in the future? | |
313 | } | |
314 | ||
2aa91ff2 S |
315 | /** |
316 | * Check if PHP modifier is trusted. | |
317 | * | |
318 | * @param string $modifier_name | |
319 | * @param object $compiler compiler object | |
320 | * | |
321 | * @return boolean true if modifier is trusted | |
322 | * @throws SmartyCompilerException if modifier is not trusted | |
323 | */ | |
324 | public function isTrustedPhpModifier($modifier_name, $compiler) | |
325 | { | |
326 | if (isset($this->php_modifiers) && (empty($this->php_modifiers) || in_array($modifier_name, $this->php_modifiers))) { | |
327 | return true; | |
328 | } | |
329 | ||
330 | $compiler->trigger_template_error("modifier '{$modifier_name}' not allowed by security setting"); | |
331 | ||
332 | return false; // should not, but who knows what happens to the compiler in the future? | |
333 | } | |
334 | ||
335 | /** | |
336 | * Check if tag is trusted. | |
337 | * | |
338 | * @param string $tag_name | |
339 | * @param object $compiler compiler object | |
340 | * | |
341 | * @return boolean true if tag is trusted | |
342 | * @throws SmartyCompilerException if modifier is not trusted | |
343 | */ | |
344 | public function isTrustedTag($tag_name, $compiler) | |
345 | { | |
346 | // check for internal always required tags | |
347 | if (in_array($tag_name, array('assign', 'call', 'private_filter', 'private_block_plugin', 'private_function_plugin', 'private_object_block_function', | |
348 | 'private_object_function', 'private_registered_function', 'private_registered_block', 'private_special_variable', 'private_print_expression', 'private_modifier')) | |
349 | ) { | |
350 | return true; | |
351 | } | |
352 | // check security settings | |
353 | if (empty($this->allowed_tags)) { | |
354 | if (empty($this->disabled_tags) || !in_array($tag_name, $this->disabled_tags)) { | |
355 | return true; | |
356 | } else { | |
357 | $compiler->trigger_template_error("tag '{$tag_name}' disabled by security setting", $compiler->lex->taglineno); | |
358 | } | |
359 | } elseif (in_array($tag_name, $this->allowed_tags) && !in_array($tag_name, $this->disabled_tags)) { | |
360 | return true; | |
361 | } else { | |
362 | $compiler->trigger_template_error("tag '{$tag_name}' not allowed by security setting", $compiler->lex->taglineno); | |
363 | } | |
364 | ||
365 | return false; // should not, but who knows what happens to the compiler in the future? | |
366 | } | |
367 | ||
ccd27f54 S |
368 | /** |
369 | * Check if special $smarty variable is trusted. | |
370 | * | |
371 | * @param string $var_name | |
372 | * @param object $compiler compiler object | |
373 | * | |
374 | * @return boolean true if tag is trusted | |
375 | * @throws SmartyCompilerException if modifier is not trusted | |
376 | */ | |
377 | public function isTrustedSpecialSmartyVar($var_name, $compiler) | |
378 | { | |
379 | if (!in_array($var_name, $this->disabled_special_smarty_vars)) { | |
380 | return true; | |
381 | } else { | |
382 | $compiler->trigger_template_error("special variable '\$smarty.{$var_name}' not allowed by security setting", $compiler->lex->taglineno); | |
383 | } | |
384 | ||
385 | return false; // should not, but who knows what happens to the compiler in the future? | |
386 | } | |
387 | ||
2aa91ff2 S |
388 | /** |
389 | * Check if modifier plugin is trusted. | |
390 | * | |
391 | * @param string $modifier_name | |
392 | * @param object $compiler compiler object | |
393 | * | |
394 | * @return boolean true if tag is trusted | |
395 | * @throws SmartyCompilerException if modifier is not trusted | |
396 | */ | |
397 | public function isTrustedModifier($modifier_name, $compiler) | |
398 | { | |
399 | // check for internal always allowed modifier | |
400 | if (in_array($modifier_name, array('default'))) { | |
401 | return true; | |
402 | } | |
403 | // check security settings | |
404 | if (empty($this->allowed_modifiers)) { | |
405 | if (empty($this->disabled_modifiers) || !in_array($modifier_name, $this->disabled_modifiers)) { | |
406 | return true; | |
407 | } else { | |
408 | $compiler->trigger_template_error("modifier '{$modifier_name}' disabled by security setting", $compiler->lex->taglineno); | |
409 | } | |
410 | } elseif (in_array($modifier_name, $this->allowed_modifiers) && !in_array($modifier_name, $this->disabled_modifiers)) { | |
411 | return true; | |
412 | } else { | |
413 | $compiler->trigger_template_error("modifier '{$modifier_name}' not allowed by security setting", $compiler->lex->taglineno); | |
414 | } | |
415 | ||
416 | return false; // should not, but who knows what happens to the compiler in the future? | |
417 | } | |
418 | ||
ccd27f54 S |
419 | /** |
420 | * Check if constants are enabled or trusted | |
421 | * | |
422 | * @param string $const contant name | |
423 | * @param object $compiler compiler object | |
424 | * | |
425 | * @return bool | |
426 | */ | |
427 | public function isTrustedConstant($const, $compiler) | |
428 | { | |
429 | if (in_array($const, array('true', 'false', 'null'))) { | |
430 | return true; | |
431 | } | |
432 | if (!empty($this->trusted_constants)) { | |
433 | if (!in_array($const, $this->trusted_constants)) { | |
434 | $compiler->trigger_template_error("Security: access to constant '{$const}' not permitted"); | |
435 | return false; | |
436 | } | |
437 | return true; | |
438 | } | |
439 | if ($this->allow_constants) { | |
440 | return true; | |
441 | } | |
442 | $compiler->trigger_template_error("Security: access to constants not permitted"); | |
443 | return false; | |
444 | } | |
445 | ||
2aa91ff2 S |
446 | /** |
447 | * Check if stream is trusted. | |
448 | * | |
449 | * @param string $stream_name | |
450 | * | |
451 | * @return boolean true if stream is trusted | |
452 | * @throws SmartyException if stream is not trusted | |
453 | */ | |
454 | public function isTrustedStream($stream_name) | |
455 | { | |
456 | if (isset($this->streams) && (empty($this->streams) || in_array($stream_name, $this->streams))) { | |
457 | return true; | |
458 | } | |
459 | ||
460 | throw new SmartyException("stream '{$stream_name}' not allowed by security setting"); | |
461 | } | |
462 | ||
463 | /** | |
464 | * Check if directory of file resource is trusted. | |
465 | * | |
466 | * @param string $filepath | |
467 | * | |
468 | * @return boolean true if directory is trusted | |
469 | * @throws SmartyException if directory is not trusted | |
470 | */ | |
471 | public function isTrustedResourceDir($filepath) | |
472 | { | |
473 | $_template = false; | |
474 | $_config = false; | |
475 | $_secure = false; | |
476 | ||
477 | $_template_dir = $this->smarty->getTemplateDir(); | |
478 | $_config_dir = $this->smarty->getConfigDir(); | |
479 | ||
480 | // check if index is outdated | |
481 | if ((!$this->_template_dir || $this->_template_dir !== $_template_dir) | |
482 | || (!$this->_config_dir || $this->_config_dir !== $_config_dir) | |
483 | || (!empty($this->secure_dir) && (!$this->_secure_dir || $this->_secure_dir !== $this->secure_dir)) | |
484 | ) { | |
485 | $this->_resource_dir = array(); | |
486 | $_template = true; | |
487 | $_config = true; | |
488 | $_secure = !empty($this->secure_dir); | |
489 | } | |
490 | ||
491 | // rebuild template dir index | |
492 | if ($_template) { | |
493 | $this->_template_dir = $_template_dir; | |
494 | foreach ($_template_dir as $directory) { | |
495 | $directory = realpath($directory); | |
496 | $this->_resource_dir[$directory] = true; | |
497 | } | |
498 | } | |
499 | ||
500 | // rebuild config dir index | |
501 | if ($_config) { | |
502 | $this->_config_dir = $_config_dir; | |
503 | foreach ($_config_dir as $directory) { | |
504 | $directory = realpath($directory); | |
505 | $this->_resource_dir[$directory] = true; | |
506 | } | |
507 | } | |
508 | ||
509 | // rebuild secure dir index | |
510 | if ($_secure) { | |
511 | $this->_secure_dir = $this->secure_dir; | |
512 | foreach ((array) $this->secure_dir as $directory) { | |
513 | $directory = realpath($directory); | |
514 | $this->_resource_dir[$directory] = true; | |
515 | } | |
516 | } | |
517 | ||
518 | $_filepath = realpath($filepath); | |
519 | $directory = dirname($_filepath); | |
520 | $_directory = array(); | |
521 | while (true) { | |
522 | // remember the directory to add it to _resource_dir in case we're successful | |
523 | $_directory[$directory] = true; | |
524 | // test if the directory is trusted | |
525 | if (isset($this->_resource_dir[$directory])) { | |
526 | // merge sub directories of current $directory into _resource_dir to speed up subsequent lookup | |
527 | $this->_resource_dir = array_merge($this->_resource_dir, $_directory); | |
528 | ||
529 | return true; | |
530 | } | |
531 | // abort if we've reached root | |
532 | if (($pos = strrpos($directory, DS)) === false || !isset($directory[1])) { | |
533 | break; | |
534 | } | |
535 | // bubble up one level | |
536 | $directory = substr($directory, 0, $pos); | |
537 | } | |
538 | ||
539 | // give up | |
540 | throw new SmartyException("directory '{$_filepath}' not allowed by security setting"); | |
541 | } | |
542 | ||
543 | /** | |
544 | * Check if URI (e.g. {fetch} or {html_image}) is trusted | |
545 | * To simplify things, isTrustedUri() resolves all input to "{$PROTOCOL}://{$HOSTNAME}". | |
546 | * So "http://username:password@hello.world.example.org:8080/some-path?some=query-string" | |
547 | * is reduced to "http://hello.world.example.org" prior to applying the patters from {@link $trusted_uri}. | |
548 | * | |
549 | * @param string $uri | |
550 | * | |
551 | * @return boolean true if URI is trusted | |
552 | * @throws SmartyException if URI is not trusted | |
553 | * @uses $trusted_uri for list of patterns to match against $uri | |
554 | */ | |
555 | public function isTrustedUri($uri) | |
556 | { | |
557 | $_uri = parse_url($uri); | |
558 | if (!empty($_uri['scheme']) && !empty($_uri['host'])) { | |
559 | $_uri = $_uri['scheme'] . '://' . $_uri['host']; | |
560 | foreach ($this->trusted_uri as $pattern) { | |
561 | if (preg_match($pattern, $_uri)) { | |
562 | return true; | |
563 | } | |
564 | } | |
565 | } | |
566 | ||
567 | throw new SmartyException("URI '{$uri}' not allowed by security setting"); | |
568 | } | |
569 | ||
570 | /** | |
571 | * Check if directory of file resource is trusted. | |
572 | * | |
573 | * @param string $filepath | |
574 | * | |
575 | * @return boolean true if directory is trusted | |
576 | * @throws SmartyException if PHP directory is not trusted | |
577 | */ | |
578 | public function isTrustedPHPDir($filepath) | |
579 | { | |
580 | if (empty($this->trusted_dir)) { | |
581 | throw new SmartyException("directory '{$filepath}' not allowed by security setting (no trusted_dir specified)"); | |
582 | } | |
583 | ||
584 | // check if index is outdated | |
585 | if (!$this->_trusted_dir || $this->_trusted_dir !== $this->trusted_dir) { | |
586 | $this->_php_resource_dir = array(); | |
587 | ||
588 | $this->_trusted_dir = $this->trusted_dir; | |
589 | foreach ((array) $this->trusted_dir as $directory) { | |
590 | $directory = realpath($directory); | |
591 | $this->_php_resource_dir[$directory] = true; | |
592 | } | |
593 | } | |
594 | ||
595 | $_filepath = realpath($filepath); | |
596 | $directory = dirname($_filepath); | |
597 | $_directory = array(); | |
598 | while (true) { | |
599 | // remember the directory to add it to _resource_dir in case we're successful | |
600 | $_directory[] = $directory; | |
601 | // test if the directory is trusted | |
602 | if (isset($this->_php_resource_dir[$directory])) { | |
603 | // merge sub directories of current $directory into _resource_dir to speed up subsequent lookup | |
604 | $this->_php_resource_dir = array_merge($this->_php_resource_dir, $_directory); | |
605 | ||
606 | return true; | |
607 | } | |
608 | // abort if we've reached root | |
609 | if (($pos = strrpos($directory, DS)) === false || !isset($directory[2])) { | |
610 | break; | |
611 | } | |
612 | // bubble up one level | |
613 | $directory = substr($directory, 0, $pos); | |
614 | } | |
615 | ||
616 | throw new SmartyException("directory '{$_filepath}' not allowed by security setting"); | |
617 | } | |
ccd27f54 S |
618 | |
619 | /** | |
620 | * Start template processing | |
621 | * | |
622 | * @param $template | |
623 | * | |
624 | * @throws SmartyException | |
625 | */ | |
626 | public function startTemplate($template) | |
627 | { | |
628 | if ($this->max_template_nesting > 0 && $this->_current_template_nesting ++ >= $this->max_template_nesting) { | |
629 | throw new SmartyException("maximum template nesting level of '{$this->max_template_nesting}' exceeded when calling '{$template->template_resource}'"); | |
630 | } | |
631 | } | |
632 | ||
633 | /** | |
634 | * Exit template processing | |
635 | * | |
636 | * @param $template | |
637 | */ | |
638 | public function exitTemplate($template) | |
639 | { | |
640 | if ($this->max_template_nesting > 0) { | |
641 | $this->_current_template_nesting --; | |
642 | } | |
643 | } | |
2aa91ff2 | 644 | } |