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45034273 SS |
1 | <?php |
2 | ||
3 | /** | |
4 | * RainTPL | |
5 | * ------- | |
6 | * Realized by Federico Ulfo & maintained by the Rain Team | |
7 | * Distributed under GNU/LGPL 3 License | |
8 | * | |
9 | * @version 2.7 | |
10 | */ | |
11 | ||
12 | ||
13 | class RainTPL{ | |
14 | ||
15 | // ------------------------- | |
16 | // CONFIGURATION | |
17 | // ------------------------- | |
18 | ||
19 | /** | |
20 | * Template directory | |
21 | * | |
22 | * @var string | |
23 | */ | |
24 | static $tpl_dir = "tpl/"; | |
25 | ||
26 | ||
27 | /** | |
28 | * Cache directory. Is the directory where RainTPL will compile the template and save the cache | |
29 | * | |
30 | * @var string | |
31 | */ | |
32 | static $cache_dir = "tmp/"; | |
33 | ||
34 | ||
35 | /** | |
36 | * Template base URL. RainTPL will add this URL to the relative paths of element selected in $path_replace_list. | |
37 | * | |
38 | * @var string | |
39 | */ | |
40 | static $base_url = null; | |
41 | ||
42 | ||
43 | /** | |
44 | * Template extension. | |
45 | * | |
46 | * @var string | |
47 | */ | |
48 | static $tpl_ext = "html"; | |
49 | ||
50 | ||
51 | /** | |
52 | * Path replace is a cool features that replace all relative paths of images (<img src="...">), stylesheet (<link href="...">), script (<script src="...">) and link (<a href="...">) | |
53 | * Set true to enable the path replace. | |
54 | * | |
55 | * @var unknown_type | |
56 | */ | |
57 | static $path_replace = true; | |
58 | ||
59 | ||
60 | /** | |
61 | * You can set what the path_replace method will replace. | |
62 | * Avaible options: a, img, link, script, input | |
63 | * | |
64 | * @var array | |
65 | */ | |
66 | static $path_replace_list = array( 'a', 'img', 'link', 'script', 'input' ); | |
67 | ||
68 | ||
69 | /** | |
70 | * You can define in the black list what string are disabled into the template tags | |
71 | * | |
72 | * @var unknown_type | |
73 | */ | |
74 | static $black_list = array( '\$this', 'raintpl::', 'self::', '_SESSION', '_SERVER', '_ENV', 'eval', 'exec', 'unlink', 'rmdir' ); | |
75 | ||
76 | ||
77 | /** | |
78 | * Check template. | |
79 | * true: checks template update time, if changed it compile them | |
80 | * false: loads the compiled template. Set false if server doesn't have write permission for cache_directory. | |
81 | * | |
82 | */ | |
83 | static $check_template_update = true; | |
84 | ||
85 | ||
86 | /** | |
87 | * PHP tags <? ?> | |
88 | * True: php tags are enabled into the template | |
89 | * False: php tags are disabled into the template and rendered as html | |
90 | * | |
91 | * @var bool | |
92 | */ | |
93 | static $php_enabled = false; | |
94 | ||
95 | ||
96 | /** | |
97 | * Debug mode flag. | |
98 | * True: debug mode is used, syntax errors are displayed directly in template. Execution of script is not terminated. | |
99 | * False: exception is thrown on found error. | |
100 | * | |
101 | * @var bool | |
102 | */ | |
103 | static $debug = false; | |
104 | ||
105 | // ------------------------- | |
106 | ||
107 | ||
108 | // ------------------------- | |
109 | // RAINTPL VARIABLES | |
110 | // ------------------------- | |
111 | ||
112 | /** | |
113 | * Is the array where RainTPL keep the variables assigned | |
114 | * | |
115 | * @var array | |
116 | */ | |
117 | public $var = array(); | |
118 | ||
119 | protected $tpl = array(), // variables to keep the template directories and info | |
120 | $cache = false, // static cache enabled / disabled | |
121 | $cache_id = null; // identify only one cache | |
122 | ||
123 | protected static $config_name_sum = array(); // takes all the config to create the md5 of the file | |
124 | ||
125 | // ------------------------- | |
126 | ||
127 | ||
128 | ||
129 | const CACHE_EXPIRE_TIME = 3600; // default cache expire time = hour | |
130 | ||
131 | ||
132 | ||
133 | /** | |
134 | * Assign variable | |
135 | * eg. $t->assign('name','mickey'); | |
136 | * | |
137 | * @param mixed $variable_name Name of template variable or associative array name/value | |
138 | * @param mixed $value value assigned to this variable. Not set if variable_name is an associative array | |
139 | */ | |
140 | ||
141 | function assign( $variable, $value = null ){ | |
142 | if( is_array( $variable ) ) | |
143 | $this->var += $variable; | |
144 | else | |
145 | $this->var[ $variable ] = $value; | |
146 | } | |
147 | ||
148 | ||
149 | ||
150 | /** | |
151 | * Draw the template | |
152 | * eg. $html = $tpl->draw( 'demo', TRUE ); // return template in string | |
153 | * or $tpl->draw( $tpl_name ); // echo the template | |
154 | * | |
155 | * @param string $tpl_name template to load | |
156 | * @param boolean $return_string true=return a string, false=echo the template | |
157 | * @return string | |
158 | */ | |
159 | ||
160 | function draw( $tpl_name, $return_string = false ){ | |
161 | ||
162 | try { | |
163 | // compile the template if necessary and set the template filepath | |
164 | $this->check_template( $tpl_name ); | |
165 | } catch (RainTpl_Exception $e) { | |
166 | $output = $this->printDebug($e); | |
167 | die($output); | |
168 | } | |
169 | ||
170 | // Cache is off and, return_string is false | |
171 | // Rain just echo the template | |
172 | ||
173 | if( !$this->cache && !$return_string ){ | |
174 | extract( $this->var ); | |
175 | include $this->tpl['compiled_filename']; | |
176 | unset( $this->tpl ); | |
177 | } | |
178 | ||
179 | ||
180 | // cache or return_string are enabled | |
181 | // rain get the output buffer to save the output in the cache or to return it as string | |
182 | ||
183 | else{ | |
184 | ||
185 | //---------------------- | |
186 | // get the output buffer | |
187 | //---------------------- | |
188 | ob_start(); | |
189 | extract( $this->var ); | |
190 | include $this->tpl['compiled_filename']; | |
191 | $raintpl_contents = ob_get_clean(); | |
192 | //---------------------- | |
193 | ||
194 | ||
195 | // save the output in the cache | |
196 | if( $this->cache ) | |
197 | file_put_contents( $this->tpl['cache_filename'], "<?php if(!class_exists('raintpl')){exit;}?>" . $raintpl_contents ); | |
198 | ||
199 | // free memory | |
200 | unset( $this->tpl ); | |
201 | ||
202 | // return or print the template | |
203 | if( $return_string ) return $raintpl_contents; else echo $raintpl_contents; | |
204 | ||
205 | } | |
206 | ||
207 | } | |
208 | ||
209 | ||
210 | ||
211 | /** | |
212 | * If exists a valid cache for this template it returns the cache | |
213 | * | |
214 | * @param string $tpl_name Name of template (set the same of draw) | |
215 | * @param int $expiration_time Set after how many seconds the cache expire and must be regenerated | |
216 | * @return string it return the HTML or null if the cache must be recreated | |
217 | */ | |
218 | ||
219 | function cache( $tpl_name, $expire_time = self::CACHE_EXPIRE_TIME, $cache_id = null ){ | |
220 | ||
221 | // set the cache_id | |
222 | $this->cache_id = $cache_id; | |
223 | ||
224 | if( !$this->check_template( $tpl_name ) && file_exists( $this->tpl['cache_filename'] ) && ( time() - filemtime( $this->tpl['cache_filename'] ) < $expire_time ) ) | |
225 | return substr( file_get_contents( $this->tpl['cache_filename'] ), 43 ); | |
226 | else{ | |
227 | //delete the cache of the selected template | |
228 | if (file_exists($this->tpl['cache_filename'])) | |
229 | unlink($this->tpl['cache_filename'] ); | |
230 | $this->cache = true; | |
231 | } | |
232 | } | |
233 | ||
234 | ||
235 | ||
236 | /** | |
237 | * Configure the settings of RainTPL | |
238 | * | |
239 | */ | |
240 | static function configure( $setting, $value = null ){ | |
241 | if( is_array( $setting ) ) | |
242 | foreach( $setting as $key => $value ) | |
243 | self::configure( $key, $value ); | |
244 | else if( property_exists( __CLASS__, $setting ) ){ | |
245 | self::$$setting = $value; | |
246 | self::$config_name_sum[$key] = $value; // take trace of all config | |
247 | } | |
248 | } | |
249 | ||
250 | ||
251 | ||
252 | // check if has to compile the template | |
253 | // return true if the template has changed | |
254 | protected function check_template( $tpl_name ){ | |
255 | ||
256 | if( !isset($this->tpl['checked']) ){ | |
257 | ||
258 | $tpl_basename = basename( $tpl_name ); // template basename | |
259 | $tpl_basedir = strpos($tpl_name,"/") ? dirname($tpl_name) . '/' : null; // template basedirectory | |
260 | $tpl_dir = self::$tpl_dir . $tpl_basedir; // template directory | |
261 | $this->tpl['tpl_filename'] = $tpl_dir . $tpl_basename . '.' . self::$tpl_ext; // template filename | |
262 | $temp_compiled_filename = self::$cache_dir . $tpl_basename . "." . md5( $tpl_dir . implode('', self::$config_name_sum)); | |
263 | $this->tpl['compiled_filename'] = $temp_compiled_filename . '.rtpl.php'; // cache filename | |
264 | $this->tpl['cache_filename'] = $temp_compiled_filename . '.s_' . $this->cache_id . '.rtpl.php'; // static cache filename | |
265 | ||
266 | // if the template doesn't exsist throw an error | |
267 | if( self::$check_template_update && !file_exists( $this->tpl['tpl_filename'] ) ){ | |
268 | $e = new RainTpl_NotFoundException( 'Template '. $tpl_basename .' not found!' ); | |
269 | throw $e->setTemplateFile($this->tpl['tpl_filename']); | |
270 | } | |
271 | ||
272 | // file doesn't exsist, or the template was updated, Rain will compile the template | |
273 | if( !file_exists( $this->tpl['compiled_filename'] ) || ( self::$check_template_update && filemtime($this->tpl['compiled_filename']) < filemtime( $this->tpl['tpl_filename'] ) ) ){ | |
274 | $this->compileFile( $tpl_basename, $tpl_basedir, $this->tpl['tpl_filename'], self::$cache_dir, $this->tpl['compiled_filename'] ); | |
275 | return true; | |
276 | } | |
277 | $this->tpl['checked'] = true; | |
278 | } | |
279 | } | |
280 | ||
281 | ||
282 | /** | |
283 | * execute stripslaches() on the xml block. Invoqued by preg_replace_callback function below | |
284 | * @access protected | |
285 | */ | |
286 | protected function xml_reSubstitution($capture) { | |
287 | return "<?php echo '<?xml ".stripslashes($capture[1])." ?>'; ?>"; | |
288 | } | |
289 | ||
290 | /** | |
291 | * Compile and write the compiled template file | |
292 | * @access protected | |
293 | */ | |
294 | protected function compileFile( $tpl_basename, $tpl_basedir, $tpl_filename, $cache_dir, $compiled_filename ){ | |
295 | ||
296 | //read template file | |
297 | $this->tpl['source'] = $template_code = file_get_contents( $tpl_filename ); | |
298 | ||
299 | //xml substitution | |
300 | $template_code = preg_replace( "/<\?xml(.*?)\?>/s", "##XML\\1XML##", $template_code ); | |
301 | ||
302 | //disable php tag | |
303 | if( !self::$php_enabled ) | |
304 | $template_code = str_replace( array("<?","?>"), array("<?","?>"), $template_code ); | |
305 | ||
306 | //xml re-substitution | |
307 | $template_code = preg_replace_callback ( "/##XML(.*?)XML##/s", array($this, 'xml_reSubstitution'), $template_code ); | |
308 | ||
309 | //compile template | |
310 | $template_compiled = "<?php if(!class_exists('raintpl')){exit;}?>" . $this->compileTemplate( $template_code, $tpl_basedir ); | |
311 | ||
312 | ||
313 | // fix the php-eating-newline-after-closing-tag-problem | |
314 | $template_compiled = str_replace( "?>\n", "?>\n\n", $template_compiled ); | |
315 | ||
316 | // create directories | |
317 | if( !is_dir( $cache_dir ) ) | |
318 | mkdir( $cache_dir, 0755, true ); | |
319 | ||
320 | if( !is_writable( $cache_dir ) ) | |
321 | throw new RainTpl_Exception ('Cache directory ' . $cache_dir . 'doesn\'t have write permission. Set write permission or set RAINTPL_CHECK_TEMPLATE_UPDATE to false. More details on http://www.raintpl.com/Documentation/Documentation-for-PHP-developers/Configuration/'); | |
322 | ||
323 | //write compiled file | |
324 | file_put_contents( $compiled_filename, $template_compiled ); | |
325 | } | |
326 | ||
327 | ||
328 | ||
329 | /** | |
330 | * Compile template | |
331 | * @access protected | |
332 | */ | |
333 | protected function compileTemplate( $template_code, $tpl_basedir ){ | |
334 | ||
335 | //tag list | |
336 | $tag_regexp = array( 'loop' => '(\{loop(?: name){0,1}="\${0,1}[^"]*"\})', | |
337 | 'loop_close' => '(\{\/loop\})', | |
338 | 'if' => '(\{if(?: condition){0,1}="[^"]*"\})', | |
339 | 'elseif' => '(\{elseif(?: condition){0,1}="[^"]*"\})', | |
340 | 'else' => '(\{else\})', | |
341 | 'if_close' => '(\{\/if\})', | |
342 | 'function' => '(\{function="[^"]*"\})', | |
343 | 'noparse' => '(\{noparse\})', | |
344 | 'noparse_close'=> '(\{\/noparse\})', | |
345 | 'ignore' => '(\{ignore\})', | |
346 | 'ignore_close' => '(\{\/ignore\})', | |
347 | 'include' => '(\{include="[^"]*"(?: cache="[^"]*")?\})', | |
348 | 'template_info'=> '(\{\$template_info\})', | |
349 | 'function' => '(\{function="(\w*?)(?:.*?)"\})' | |
350 | ); | |
351 | ||
352 | $tag_regexp = "/" . join( "|", $tag_regexp ) . "/"; | |
353 | ||
354 | //split the code with the tags regexp | |
355 | $template_code = preg_split ( $tag_regexp, $template_code, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY ); | |
356 | ||
357 | //path replace (src of img, background and href of link) | |
358 | $template_code = $this->path_replace( $template_code, $tpl_basedir ); | |
359 | ||
360 | //compile the code | |
361 | $compiled_code = $this->compileCode( $template_code ); | |
362 | ||
363 | //return the compiled code | |
364 | return $compiled_code; | |
365 | ||
366 | } | |
367 | ||
368 | ||
369 | ||
370 | /** | |
371 | * Compile the code | |
372 | * @access protected | |
373 | */ | |
374 | protected function compileCode( $parsed_code ){ | |
375 | ||
376 | //variables initialization | |
377 | $compiled_code = $open_if = $comment_is_open = $ignore_is_open = null; | |
378 | $loop_level = 0; | |
379 | ||
380 | //read all parsed code | |
381 | while( $html = array_shift( $parsed_code ) ){ | |
382 | ||
383 | //close ignore tag | |
384 | if( !$comment_is_open && strpos( $html, '{/ignore}' ) !== FALSE ) | |
385 | $ignore_is_open = false; | |
386 | ||
387 | //code between tag ignore id deleted | |
388 | elseif( $ignore_is_open ){ | |
389 | //ignore the code | |
390 | } | |
391 | ||
392 | //close no parse tag | |
393 | elseif( strpos( $html, '{/noparse}' ) !== FALSE ) | |
394 | $comment_is_open = false; | |
395 | ||
396 | //code between tag noparse is not compiled | |
397 | elseif( $comment_is_open ) | |
398 | $compiled_code .= $html; | |
399 | ||
400 | //ignore | |
401 | elseif( strpos( $html, '{ignore}' ) !== FALSE ) | |
402 | $ignore_is_open = true; | |
403 | ||
404 | //noparse | |
405 | elseif( strpos( $html, '{noparse}' ) !== FALSE ) | |
406 | $comment_is_open = true; | |
407 | ||
408 | //include tag | |
409 | elseif( preg_match( '/\{include="([^"]*)"(?: cache="([^"]*)"){0,1}\}/', $html, $code ) ){ | |
410 | ||
411 | //variables substitution | |
412 | $include_var = $this->var_replace( $code[ 1 ], $left_delimiter = null, $right_delimiter = null, $php_left_delimiter = '".' , $php_right_delimiter = '."', $loop_level ); | |
413 | ||
414 | // if the cache is active | |
415 | if( isset($code[ 2 ]) ){ | |
416 | ||
417 | //dynamic include | |
418 | $compiled_code .= '<?php $tpl = new RainTpl;' . | |
419 | 'if( $cache = $tpl->cache( $template = basename("'.$include_var.'") ) )' . | |
420 | ' echo $cache;' . | |
421 | 'else{' . | |
422 | ' $tpl_dir_temp = self::$tpl_dir;' . | |
423 | ' $tpl->assign( $this->var );' . | |
424 | ( !$loop_level ? null : '$tpl->assign( "key", $key'.$loop_level.' ); $tpl->assign( "value", $value'.$loop_level.' );' ). | |
425 | ' $tpl->draw( dirname("'.$include_var.'") . ( substr("'.$include_var.'",-1,1) != "/" ? "/" : "" ) . basename("'.$include_var.'") );'. | |
426 | '} ?>'; | |
427 | } | |
428 | else{ | |
429 | ||
430 | //dynamic include | |
431 | $compiled_code .= '<?php $tpl = new RainTpl;' . | |
432 | '$tpl_dir_temp = self::$tpl_dir;' . | |
433 | '$tpl->assign( $this->var );' . | |
434 | ( !$loop_level ? null : '$tpl->assign( "key", $key'.$loop_level.' ); $tpl->assign( "value", $value'.$loop_level.' );' ). | |
435 | '$tpl->draw( dirname("'.$include_var.'") . ( substr("'.$include_var.'",-1,1) != "/" ? "/" : "" ) . basename("'.$include_var.'") );'. | |
436 | '?>'; | |
437 | ||
438 | ||
439 | } | |
440 | ||
441 | } | |
442 | ||
443 | //loop | |
444 | elseif( preg_match( '/\{loop(?: name){0,1}="\${0,1}([^"]*)"\}/', $html, $code ) ){ | |
445 | ||
446 | //increase the loop counter | |
447 | $loop_level++; | |
448 | ||
449 | //replace the variable in the loop | |
450 | $var = $this->var_replace( '$' . $code[ 1 ], $tag_left_delimiter=null, $tag_right_delimiter=null, $php_left_delimiter=null, $php_right_delimiter=null, $loop_level-1 ); | |
451 | ||
452 | //loop variables | |
453 | $counter = "\$counter$loop_level"; // count iteration | |
454 | $key = "\$key$loop_level"; // key | |
455 | $value = "\$value$loop_level"; // value | |
456 | ||
457 | //loop code | |
458 | $compiled_code .= "<?php $counter=-1; if( isset($var) && is_array($var) && sizeof($var) ) foreach( $var as $key => $value ){ $counter++; ?>"; | |
459 | ||
460 | } | |
461 | ||
462 | //close loop tag | |
463 | elseif( strpos( $html, '{/loop}' ) !== FALSE ) { | |
464 | ||
465 | //iterator | |
466 | $counter = "\$counter$loop_level"; | |
467 | ||
468 | //decrease the loop counter | |
469 | $loop_level--; | |
470 | ||
471 | //close loop code | |
472 | $compiled_code .= "<?php } ?>"; | |
473 | ||
474 | } | |
475 | ||
476 | //if | |
477 | elseif( preg_match( '/\{if(?: condition){0,1}="([^"]*)"\}/', $html, $code ) ){ | |
478 | ||
479 | //increase open if counter (for intendation) | |
480 | $open_if++; | |
481 | ||
482 | //tag | |
483 | $tag = $code[ 0 ]; | |
484 | ||
485 | //condition attribute | |
486 | $condition = $code[ 1 ]; | |
487 | ||
488 | // check if there's any function disabled by black_list | |
489 | $this->function_check( $tag ); | |
490 | ||
491 | //variable substitution into condition (no delimiter into the condition) | |
492 | $parsed_condition = $this->var_replace( $condition, $tag_left_delimiter = null, $tag_right_delimiter = null, $php_left_delimiter = null, $php_right_delimiter = null, $loop_level ); | |
493 | ||
494 | //if code | |
495 | $compiled_code .= "<?php if( $parsed_condition ){ ?>"; | |
496 | ||
497 | } | |
498 | ||
499 | //elseif | |
500 | elseif( preg_match( '/\{elseif(?: condition){0,1}="([^"]*)"\}/', $html, $code ) ){ | |
501 | ||
502 | //tag | |
503 | $tag = $code[ 0 ]; | |
504 | ||
505 | //condition attribute | |
506 | $condition = $code[ 1 ]; | |
507 | ||
508 | //variable substitution into condition (no delimiter into the condition) | |
509 | $parsed_condition = $this->var_replace( $condition, $tag_left_delimiter = null, $tag_right_delimiter = null, $php_left_delimiter = null, $php_right_delimiter = null, $loop_level ); | |
510 | ||
511 | //elseif code | |
512 | $compiled_code .= "<?php }elseif( $parsed_condition ){ ?>"; | |
513 | } | |
514 | ||
515 | //else | |
516 | elseif( strpos( $html, '{else}' ) !== FALSE ) { | |
517 | ||
518 | //else code | |
519 | $compiled_code .= '<?php }else{ ?>'; | |
520 | ||
521 | } | |
522 | ||
523 | //close if tag | |
524 | elseif( strpos( $html, '{/if}' ) !== FALSE ) { | |
525 | ||
526 | //decrease if counter | |
527 | $open_if--; | |
528 | ||
529 | // close if code | |
530 | $compiled_code .= '<?php } ?>'; | |
531 | ||
532 | } | |
533 | ||
534 | //function | |
535 | elseif( preg_match( '/\{function="(\w*)(.*?)"\}/', $html, $code ) ){ | |
536 | ||
537 | //tag | |
538 | $tag = $code[ 0 ]; | |
539 | ||
540 | //function | |
541 | $function = $code[ 1 ]; | |
542 | ||
543 | // check if there's any function disabled by black_list | |
544 | $this->function_check( $tag ); | |
545 | ||
546 | if( empty( $code[ 2 ] ) ) | |
547 | $parsed_function = $function . "()"; | |
548 | else | |
549 | // parse the function | |
550 | $parsed_function = $function . $this->var_replace( $code[ 2 ], $tag_left_delimiter = null, $tag_right_delimiter = null, $php_left_delimiter = null, $php_right_delimiter = null, $loop_level ); | |
551 | ||
552 | //if code | |
553 | $compiled_code .= "<?php echo $parsed_function; ?>"; | |
554 | } | |
555 | ||
556 | // show all vars | |
557 | elseif ( strpos( $html, '{$template_info}' ) !== FALSE ) { | |
558 | ||
559 | //tag | |
560 | $tag = '{$template_info}'; | |
561 | ||
562 | //if code | |
563 | $compiled_code .= '<?php echo "<pre>"; print_r( $this->var ); echo "</pre>"; ?>'; | |
564 | } | |
565 | ||
566 | ||
567 | //all html code | |
568 | else{ | |
569 | ||
570 | //variables substitution (es. {$title}) | |
571 | $html = $this->var_replace( $html, $left_delimiter = '\{', $right_delimiter = '\}', $php_left_delimiter = '<?php ', $php_right_delimiter = ';?>', $loop_level, $echo = true ); | |
572 | //const substitution (es. {#CONST#}) | |
573 | $html = $this->const_replace( $html, $left_delimiter = '\{', $right_delimiter = '\}', $php_left_delimiter = '<?php ', $php_right_delimiter = ';?>', $loop_level, $echo = true ); | |
574 | //functions substitution (es. {"string"|functions}) | |
575 | $compiled_code .= $this->func_replace( $html, $left_delimiter = '\{', $right_delimiter = '\}', $php_left_delimiter = '<?php ', $php_right_delimiter = ';?>', $loop_level, $echo = true ); | |
576 | } | |
577 | } | |
578 | ||
579 | if( $open_if > 0 ) { | |
580 | $e = new RainTpl_SyntaxException('Error! You need to close an {if} tag in ' . $this->tpl['tpl_filename'] . ' template'); | |
581 | throw $e->setTemplateFile($this->tpl['tpl_filename']); | |
582 | } | |
583 | return $compiled_code; | |
584 | } | |
585 | ||
586 | ||
587 | ||
588 | protected function reduce_path( $path ){ | |
589 | $path = str_replace( "//", "/", $path ); | |
590 | return preg_replace('/\w+\/\.\.\//', '', $path ); | |
591 | } | |
592 | ||
593 | ||
594 | ||
595 | /** | |
596 | * replace the path of image src, link href and a href. | |
597 | * url => template_dir/url | |
598 | * url# => url | |
599 | * http://url => http://url | |
600 | * | |
601 | * @param string $html | |
602 | * @return string html sostituito | |
603 | */ | |
604 | protected function path_replace( $html, $tpl_basedir ){ | |
605 | ||
606 | if( self::$path_replace ){ | |
607 | ||
608 | $tpl_dir = self::$base_url . self::$tpl_dir . $tpl_basedir; | |
609 | ||
610 | // reduce the path | |
611 | $path = $this->reduce_path($tpl_dir); | |
612 | ||
613 | $exp = $sub = array(); | |
614 | ||
615 | if( in_array( "img", self::$path_replace_list ) ){ | |
616 | $exp = array( '/<img(.*?)src=(?:")(http|https)\:\/\/([^"]+?)(?:")/i', '/<img(.*?)src=(?:")([^"]+?)#(?:")/i', '/<img(.*?)src="(.*?)"/', '/<img(.*?)src=(?:\@)([^"]+?)(?:\@)/i' ); | |
617 | $sub = array( '<img$1src=@$2://$3@', '<img$1src=@$2@', '<img$1src="' . $path . '$2"', '<img$1src="$2"' ); | |
618 | } | |
619 | ||
620 | if( in_array( "script", self::$path_replace_list ) ){ | |
621 | $exp = array_merge( $exp , array( '/<script(.*?)src=(?:")(http|https)\:\/\/([^"]+?)(?:")/i', '/<script(.*?)src=(?:")([^"]+?)#(?:")/i', '/<script(.*?)src="(.*?)"/', '/<script(.*?)src=(?:\@)([^"]+?)(?:\@)/i' ) ); | |
622 | $sub = array_merge( $sub , array( '<script$1src=@$2://$3@', '<script$1src=@$2@', '<script$1src="' . $path . '$2"', '<script$1src="$2"' ) ); | |
623 | } | |
624 | ||
625 | if( in_array( "link", self::$path_replace_list ) ){ | |
626 | $exp = array_merge( $exp , array( '/<link(.*?)href=(?:")(http|https)\:\/\/([^"]+?)(?:")/i', '/<link(.*?)href=(?:")([^"]+?)#(?:")/i', '/<link(.*?)href="(.*?)"/', '/<link(.*?)href=(?:\@)([^"]+?)(?:\@)/i' ) ); | |
627 | $sub = array_merge( $sub , array( '<link$1href=@$2://$3@', '<link$1href=@$2@' , '<link$1href="' . $path . '$2"', '<link$1href="$2"' ) ); | |
628 | } | |
629 | ||
630 | if( in_array( "a", self::$path_replace_list ) ){ | |
631 | $exp = array_merge( $exp , array( '/<a(.*?)href=(?:")(http|https)\:\/\/([^"]+?)(?:")/i', '/<a(.*?)href="(.*?)"/', '/<a(.*?)href=(?:\@)([^"]+?)(?:\@)/i' ) ); | |
632 | $sub = array_merge( $sub , array( '<a$1href=@$2://$3@', '<a$1href="' . self::$base_url . '$2"', '<a$1href="$2"' ) ); | |
633 | } | |
634 | ||
635 | if( in_array( "input", self::$path_replace_list ) ){ | |
636 | $exp = array_merge( $exp , array( '/<input(.*?)src=(?:")(http|https)\:\/\/([^"]+?)(?:")/i', '/<input(.*?)src=(?:")([^"]+?)#(?:")/i', '/<input(.*?)src="(.*?)"/', '/<input(.*?)src=(?:\@)([^"]+?)(?:\@)/i' ) ); | |
637 | $sub = array_merge( $sub , array( '<input$1src=@$2://$3@', '<input$1src=@$2@', '<input$1src="' . $path . '$2"', '<input$1src="$2"' ) ); | |
638 | } | |
639 | ||
640 | return preg_replace( $exp, $sub, $html ); | |
641 | ||
642 | } | |
643 | else | |
644 | return $html; | |
645 | ||
646 | } | |
647 | ||
648 | ||
649 | ||
650 | ||
651 | ||
652 | // replace const | |
653 | function const_replace( $html, $tag_left_delimiter, $tag_right_delimiter, $php_left_delimiter = null, $php_right_delimiter = null, $loop_level = null, $echo = null ){ | |
654 | // const | |
655 | return preg_replace( '/\{\#(\w+)\#{0,1}\}/', $php_left_delimiter . ( $echo ? " echo " : null ) . '\\1' . $php_right_delimiter, $html ); | |
656 | } | |
657 | ||
658 | ||
659 | ||
660 | // replace functions/modifiers on constants and strings | |
661 | function func_replace( $html, $tag_left_delimiter, $tag_right_delimiter, $php_left_delimiter = null, $php_right_delimiter = null, $loop_level = null, $echo = null ){ | |
662 | ||
663 | preg_match_all( '/' . '\{\#{0,1}(\"{0,1}.*?\"{0,1})(\|\w.*?)\#{0,1}\}' . '/', $html, $matches ); | |
664 | ||
665 | for( $i=0, $n=count($matches[0]); $i<$n; $i++ ){ | |
666 | ||
667 | //complete tag ex: {$news.title|substr:0,100} | |
668 | $tag = $matches[ 0 ][ $i ]; | |
669 | ||
670 | //variable name ex: news.title | |
671 | $var = $matches[ 1 ][ $i ]; | |
672 | ||
673 | //function and parameters associate to the variable ex: substr:0,100 | |
674 | $extra_var = $matches[ 2 ][ $i ]; | |
675 | ||
676 | // check if there's any function disabled by black_list | |
677 | $this->function_check( $tag ); | |
678 | ||
679 | $extra_var = $this->var_replace( $extra_var, null, null, null, null, $loop_level ); | |
680 | ||
681 | ||
682 | // check if there's an operator = in the variable tags, if there's this is an initialization so it will not output any value | |
683 | $is_init_variable = preg_match( "/^(\s*?)\=[^=](.*?)$/", $extra_var ); | |
684 | ||
685 | //function associate to variable | |
686 | $function_var = ( $extra_var and $extra_var[0] == '|') ? substr( $extra_var, 1 ) : null; | |
687 | ||
688 | //variable path split array (ex. $news.title o $news[title]) or object (ex. $news->title) | |
689 | $temp = preg_split( "/\.|\[|\-\>/", $var ); | |
690 | ||
691 | //variable name | |
692 | $var_name = $temp[ 0 ]; | |
693 | ||
694 | //variable path | |
695 | $variable_path = substr( $var, strlen( $var_name ) ); | |
696 | ||
697 | //parentesis transform [ e ] in [" e in "] | |
698 | $variable_path = str_replace( '[', '["', $variable_path ); | |
699 | $variable_path = str_replace( ']', '"]', $variable_path ); | |
700 | ||
701 | //transform .$variable in ["$variable"] | |
702 | $variable_path = preg_replace('/\.\$(\w+)/', '["$\\1"]', $variable_path ); | |
703 | ||
704 | //transform [variable] in ["variable"] | |
705 | $variable_path = preg_replace('/\.(\w+)/', '["\\1"]', $variable_path ); | |
706 | ||
707 | //if there's a function | |
708 | if( $function_var ){ | |
709 | ||
710 | // check if there's a function or a static method and separate, function by parameters | |
711 | $function_var = str_replace("::", "@double_dot@", $function_var ); | |
712 | ||
713 | // get the position of the first : | |
714 | if( $dot_position = strpos( $function_var, ":" ) ){ | |
715 | ||
716 | // get the function and the parameters | |
717 | $function = substr( $function_var, 0, $dot_position ); | |
718 | $params = substr( $function_var, $dot_position+1 ); | |
719 | ||
720 | } | |
721 | else{ | |
722 | ||
723 | //get the function | |
724 | $function = str_replace( "@double_dot@", "::", $function_var ); | |
725 | $params = null; | |
726 | ||
727 | } | |
728 | ||
729 | // replace back the @double_dot@ with :: | |
730 | $function = str_replace( "@double_dot@", "::", $function ); | |
731 | $params = str_replace( "@double_dot@", "::", $params ); | |
732 | ||
733 | ||
734 | } | |
735 | else | |
736 | $function = $params = null; | |
737 | ||
738 | $php_var = $var_name . $variable_path; | |
739 | ||
740 | // compile the variable for php | |
741 | if( isset( $function ) ){ | |
742 | if( $php_var ) | |
743 | $php_var = $php_left_delimiter . ( !$is_init_variable && $echo ? 'echo ' : null ) . ( $params ? "( $function( $php_var, $params ) )" : "$function( $php_var )" ) . $php_right_delimiter; | |
744 | else | |
745 | $php_var = $php_left_delimiter . ( !$is_init_variable && $echo ? 'echo ' : null ) . ( $params ? "( $function( $params ) )" : "$function()" ) . $php_right_delimiter; | |
746 | } | |
747 | else | |
748 | $php_var = $php_left_delimiter . ( !$is_init_variable && $echo ? 'echo ' : null ) . $php_var . $extra_var . $php_right_delimiter; | |
749 | ||
750 | $html = str_replace( $tag, $php_var, $html ); | |
751 | ||
752 | } | |
753 | ||
754 | return $html; | |
755 | ||
756 | } | |
757 | ||
758 | ||
759 | ||
760 | function var_replace( $html, $tag_left_delimiter, $tag_right_delimiter, $php_left_delimiter = null, $php_right_delimiter = null, $loop_level = null, $echo = null ){ | |
761 | ||
762 | //all variables | |
763 | if( preg_match_all( '/' . $tag_left_delimiter . '\$(\w+(?:\.\${0,1}[A-Za-z0-9_]+)*(?:(?:\[\${0,1}[A-Za-z0-9_]+\])|(?:\-\>\${0,1}[A-Za-z0-9_]+))*)(.*?)' . $tag_right_delimiter . '/', $html, $matches ) ){ | |
764 | ||
765 | for( $parsed=array(), $i=0, $n=count($matches[0]); $i<$n; $i++ ) | |
766 | $parsed[$matches[0][$i]] = array('var'=>$matches[1][$i],'extra_var'=>$matches[2][$i]); | |
767 | ||
768 | foreach( $parsed as $tag => $array ){ | |
769 | ||
770 | //variable name ex: news.title | |
771 | $var = $array['var']; | |
772 | ||
773 | //function and parameters associate to the variable ex: substr:0,100 | |
774 | $extra_var = $array['extra_var']; | |
775 | ||
776 | // check if there's any function disabled by black_list | |
777 | $this->function_check( $tag ); | |
778 | ||
779 | $extra_var = $this->var_replace( $extra_var, null, null, null, null, $loop_level ); | |
780 | ||
781 | // check if there's an operator = in the variable tags, if there's this is an initialization so it will not output any value | |
782 | $is_init_variable = preg_match( "/^[a-z_A-Z\.\[\](\-\>)]*=[^=]*$/", $extra_var ); | |
783 | ||
784 | //function associate to variable | |
785 | $function_var = ( $extra_var and $extra_var[0] == '|') ? substr( $extra_var, 1 ) : null; | |
786 | ||
787 | //variable path split array (ex. $news.title o $news[title]) or object (ex. $news->title) | |
788 | $temp = preg_split( "/\.|\[|\-\>/", $var ); | |
789 | ||
790 | //variable name | |
791 | $var_name = $temp[ 0 ]; | |
792 | ||
793 | //variable path | |
794 | $variable_path = substr( $var, strlen( $var_name ) ); | |
795 | ||
796 | //parentesis transform [ e ] in [" e in "] | |
797 | $variable_path = str_replace( '[', '["', $variable_path ); | |
798 | $variable_path = str_replace( ']', '"]', $variable_path ); | |
799 | ||
800 | //transform .$variable in ["$variable"] and .variable in ["variable"] | |
801 | $variable_path = preg_replace('/\.(\${0,1}\w+)/', '["\\1"]', $variable_path ); | |
802 | ||
803 | // if is an assignment also assign the variable to $this->var['value'] | |
804 | if( $is_init_variable ) | |
805 | $extra_var = "=\$this->var['{$var_name}']{$variable_path}" . $extra_var; | |
806 | ||
807 | ||
808 | ||
809 | //if there's a function | |
810 | if( $function_var ){ | |
811 | ||
812 | // check if there's a function or a static method and separate, function by parameters | |
813 | $function_var = str_replace("::", "@double_dot@", $function_var ); | |
814 | ||
815 | ||
816 | // get the position of the first : | |
817 | if( $dot_position = strpos( $function_var, ":" ) ){ | |
818 | ||
819 | // get the function and the parameters | |
820 | $function = substr( $function_var, 0, $dot_position ); | |
821 | $params = substr( $function_var, $dot_position+1 ); | |
822 | ||
823 | } | |
824 | else{ | |
825 | ||
826 | //get the function | |
827 | $function = str_replace( "@double_dot@", "::", $function_var ); | |
828 | $params = null; | |
829 | ||
830 | } | |
831 | ||
832 | // replace back the @double_dot@ with :: | |
833 | $function = str_replace( "@double_dot@", "::", $function ); | |
834 | $params = str_replace( "@double_dot@", "::", $params ); | |
835 | } | |
836 | else | |
837 | $function = $params = null; | |
838 | ||
839 | //if it is inside a loop | |
840 | if( $loop_level ){ | |
841 | //verify the variable name | |
842 | if( $var_name == 'key' ) | |
843 | $php_var = '$key' . $loop_level; | |
844 | elseif( $var_name == 'value' ) | |
845 | $php_var = '$value' . $loop_level . $variable_path; | |
846 | elseif( $var_name == 'counter' ) | |
847 | $php_var = '$counter' . $loop_level; | |
848 | else | |
849 | $php_var = '$' . $var_name . $variable_path; | |
850 | }else | |
851 | $php_var = '$' . $var_name . $variable_path; | |
852 | ||
853 | // compile the variable for php | |
854 | if( isset( $function ) ) | |
855 | $php_var = $php_left_delimiter . ( !$is_init_variable && $echo ? 'echo ' : null ) . ( $params ? "( $function( $php_var, $params ) )" : "$function( $php_var )" ) . $php_right_delimiter; | |
856 | else | |
857 | $php_var = $php_left_delimiter . ( !$is_init_variable && $echo ? 'echo ' : null ) . $php_var . $extra_var . $php_right_delimiter; | |
858 | ||
859 | $html = str_replace( $tag, $php_var, $html ); | |
860 | ||
861 | ||
862 | } | |
863 | } | |
864 | ||
865 | return $html; | |
866 | } | |
867 | ||
868 | ||
869 | ||
870 | /** | |
871 | * Check if function is in black list (sandbox) | |
872 | * | |
873 | * @param string $code | |
874 | * @param string $tag | |
875 | */ | |
876 | protected function function_check( $code ){ | |
877 | ||
878 | $preg = '#(\W|\s)' . implode( '(\W|\s)|(\W|\s)', self::$black_list ) . '(\W|\s)#'; | |
879 | ||
880 | // check if the function is in the black list (or not in white list) | |
881 | if( count(self::$black_list) && preg_match( $preg, $code, $match ) ){ | |
882 | ||
883 | // find the line of the error | |
884 | $line = 0; | |
885 | $rows=explode("\n",$this->tpl['source']); | |
886 | while( !strpos($rows[$line],$code) ) | |
887 | $line++; | |
888 | ||
889 | // stop the execution of the script | |
890 | $e = new RainTpl_SyntaxException('Unallowed syntax in ' . $this->tpl['tpl_filename'] . ' template'); | |
891 | throw $e->setTemplateFile($this->tpl['tpl_filename']) | |
892 | ->setTag($code) | |
893 | ->setTemplateLine($line); | |
894 | } | |
895 | ||
896 | } | |
897 | ||
898 | /** | |
899 | * Prints debug info about exception or passes it further if debug is disabled. | |
900 | * | |
901 | * @param RainTpl_Exception $e | |
902 | * @return string | |
903 | */ | |
904 | protected function printDebug(RainTpl_Exception $e){ | |
905 | if (!self::$debug) { | |
906 | throw $e; | |
907 | } | |
908 | $output = sprintf('<h2>Exception: %s</h2><h3>%s</h3><p>template: %s</p>', | |
909 | get_class($e), | |
910 | $e->getMessage(), | |
911 | $e->getTemplateFile() | |
912 | ); | |
913 | if ($e instanceof RainTpl_SyntaxException) { | |
914 | if (null != $e->getTemplateLine()) { | |
915 | $output .= '<p>line: ' . $e->getTemplateLine() . '</p>'; | |
916 | } | |
917 | if (null != $e->getTag()) { | |
918 | $output .= '<p>in tag: ' . htmlspecialchars($e->getTag()) . '</p>'; | |
919 | } | |
920 | if (null != $e->getTemplateLine() && null != $e->getTag()) { | |
921 | $rows=explode("\n", htmlspecialchars($this->tpl['source'])); | |
922 | $rows[$e->getTemplateLine()] = '<font color=red>' . $rows[$e->getTemplateLine()] . '</font>'; | |
923 | $output .= '<h3>template code</h3>' . implode('<br />', $rows) . '</pre>'; | |
924 | } | |
925 | } | |
926 | $output .= sprintf('<h3>trace</h3><p>In %s on line %d</p><pre>%s</pre>', | |
927 | $e->getFile(), $e->getLine(), | |
928 | nl2br(htmlspecialchars($e->getTraceAsString())) | |
929 | ); | |
930 | return $output; | |
931 | } | |
932 | } | |
933 | ||
934 | ||
935 | /** | |
936 | * Basic Rain tpl exception. | |
937 | */ | |
938 | class RainTpl_Exception extends Exception{ | |
939 | /** | |
940 | * Path of template file with error. | |
941 | */ | |
942 | protected $templateFile = ''; | |
943 | ||
944 | /** | |
945 | * Returns path of template file with error. | |
946 | * | |
947 | * @return string | |
948 | */ | |
949 | public function getTemplateFile() | |
950 | { | |
951 | return $this->templateFile; | |
952 | } | |
953 | ||
954 | /** | |
955 | * Sets path of template file with error. | |
956 | * | |
957 | * @param string $templateFile | |
958 | * @return RainTpl_Exception | |
959 | */ | |
960 | public function setTemplateFile($templateFile) | |
961 | { | |
962 | $this->templateFile = (string) $templateFile; | |
963 | return $this; | |
964 | } | |
965 | } | |
966 | ||
967 | /** | |
968 | * Exception thrown when template file does not exists. | |
969 | */ | |
970 | class RainTpl_NotFoundException extends RainTpl_Exception{ | |
971 | } | |
972 | ||
973 | /** | |
974 | * Exception thrown when syntax error occurs. | |
975 | */ | |
976 | class RainTpl_SyntaxException extends RainTpl_Exception{ | |
977 | /** | |
978 | * Line in template file where error has occured. | |
979 | * | |
980 | * @var int | null | |
981 | */ | |
982 | protected $templateLine = null; | |
983 | ||
984 | /** | |
985 | * Tag which caused an error. | |
986 | * | |
987 | * @var string | null | |
988 | */ | |
989 | protected $tag = null; | |
990 | ||
991 | /** | |
992 | * Returns line in template file where error has occured | |
993 | * or null if line is not defined. | |
994 | * | |
995 | * @return int | null | |
996 | */ | |
997 | public function getTemplateLine() | |
998 | { | |
999 | return $this->templateLine; | |
1000 | } | |
1001 | ||
1002 | /** | |
1003 | * Sets line in template file where error has occured. | |
1004 | * | |
1005 | * @param int $templateLine | |
1006 | * @return RainTpl_SyntaxException | |
1007 | */ | |
1008 | public function setTemplateLine($templateLine) | |
1009 | { | |
1010 | $this->templateLine = (int) $templateLine; | |
1011 | return $this; | |
1012 | } | |
1013 | ||
1014 | /** | |
1015 | * Returns tag which caused an error. | |
1016 | * | |
1017 | * @return string | |
1018 | */ | |
1019 | public function getTag() | |
1020 | { | |
1021 | return $this->tag; | |
1022 | } | |
1023 | ||
1024 | /** | |
1025 | * Sets tag which caused an error. | |
1026 | * | |
1027 | * @param string $tag | |
1028 | * @return RainTpl_SyntaxException | |
1029 | */ | |
1030 | public function setTag($tag) | |
1031 | { | |
1032 | $this->tag = (string) $tag; | |
1033 | return $this; | |
1034 | } | |
1035 | } | |
1036 | ||
1037 | // -- end |