/[cvs]/nfo/php/libs/net.php.smarty/Smarty.class.php
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Wed Oct 9 00:45:29 2002 UTC (21 years, 9 months ago) by cvsjoko
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1 cvsjoko 1.1 <?php
2     /*
3     * Project: Smarty: the PHP compiling template engine
4     * File: Smarty.class.php
5     * Author: Monte Ohrt <monte@ispi.net>
6     * Andrei Zmievski <andrei@php.net>
7     *
8     * Version: 2.3.0
9     * Copyright: 2001,2002 ispi of Lincoln, Inc.
10     *
11     * This library is free software; you can redistribute it and/or
12     * modify it under the terms of the GNU Lesser General Public
13     * License as published by the Free Software Foundation; either
14     * version 2.1 of the License, or (at your option) any later version.
15     *
16     * This library is distributed in the hope that it will be useful,
17     * but WITHOUT ANY WARRANTY; without even the implied warranty of
18     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19     * Lesser General Public License for more details.
20     *
21     * You should have received a copy of the GNU Lesser General Public
22     * License along with this library; if not, write to the Free Software
23     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24     *
25     * For questions, help, comments, discussion, etc., please join the
26     * Smarty mailing list. Send a blank e-mail to
27     * smarty-general-subscribe@lists.php.net
28     *
29     * You may contact the authors of Smarty by e-mail at:
30     * monte@ispi.net
31     * andrei@php.net
32     *
33     * Or, write to:
34     * Monte Ohrt
35     * Director of Technology, ispi
36     * 237 S. 70th suite 220
37     * Lincoln, NE 68510
38     *
39     * The latest version of Smarty can be obtained from:
40     * http://www.phpinsider.com/
41     *
42     */
43    
44     // set SMARTY_DIR to absolute path to Smarty library files.
45     // if not defined, include_path will be used.
46    
47     define('DIR_SEP', DIRECTORY_SEPARATOR);
48    
49     if (!defined('SMARTY_DIR')) {
50     define('SMARTY_DIR', dirname(__FILE__) . DIR_SEP);
51     }
52    
53     define('SMARTY_PHP_PASSTHRU', 0);
54     define('SMARTY_PHP_QUOTE', 1);
55     define('SMARTY_PHP_REMOVE', 2);
56     define('SMARTY_PHP_ALLOW', 3);
57    
58     class Smarty
59     {
60    
61     /**************************************************************************/
62     /* BEGIN SMARTY CONFIGURATION SECTION */
63     /* Set the following config variables to your liking. */
64     /**************************************************************************/
65    
66     // public vars
67     var $template_dir = 'templates'; // name of directory for templates
68     var $compile_dir = 'templates_c'; // name of directory for compiled templates
69     var $config_dir = 'configs'; // directory where config files are located
70     var $plugins_dir = array('plugins'); // plugin directories
71    
72     var $debugging = false; // enable debugging console true/false
73     var $debug_tpl = ''; // path to debug console template
74     // (this gets set in the constructor)
75     var $debugging_ctrl = 'NONE'; // Possible values:
76     // NONE - no debug control allowed
77     // URL - enable debugging when keyword
78     // SMARTY_DEBUG is found in $QUERY_STRING
79    
80     var $global_assign = array( 'HTTP_SERVER_VARS' => array( 'SCRIPT_NAME' )
81     ); // variables from the GLOBALS array
82     // that are implicitly assigned
83     // to all templates
84     var $undefined = null; // undefined variables in $global_assign will be
85     // created with this value
86     var $autoload_filters = array(); // indicates which filters will be auto-loaded
87    
88     var $compile_check = true; // whether to check for compiling step or not:
89     // This is generally set to false once the
90     // application is entered into production and
91     // initially compiled. Leave set to true
92     // during development. true/false default true.
93    
94     var $force_compile = false; // force templates to compile every time,
95     // overrides cache settings. default false.
96    
97     var $caching = 0; // enable caching. can be one of 0/1/2.
98     // 0 = no caching
99     // 1 = use class cache_lifetime value
100     // 2 = use cache_lifetime in cache file
101     // default = 0.
102     var $cache_dir = 'cache'; // name of directory for template cache files
103     var $cache_lifetime = 3600; // number of seconds cached content will persist.
104     // 0 = always regenerate cache,
105     // -1 = never expires. default is one hour (3600)
106     var $cache_handler_func = null; // function used for cached content. this is
107     // an alternative to using the built-in file
108     // based caching.
109     var $cache_modified_check = false; // respect If-Modified-Since headers on cached content
110    
111    
112     var $default_template_handler_func = ''; // function to handle missing templates
113    
114     var $php_handling = SMARTY_PHP_PASSTHRU;
115     // how smarty handles php tags in the templates
116     // possible values:
117     // SMARTY_PHP_PASSTHRU -> echo tags as is
118     // SMARTY_PHP_QUOTE -> escape tags as entities
119     // SMARTY_PHP_REMOVE -> remove php tags
120     // SMARTY_PHP_ALLOW -> execute php tags
121     // default: SMARTY_PHP_PASSTHRU
122    
123    
124     var $security = false; // enable template security (default false)
125     var $secure_dir = array('templates'); // array of directories considered secure
126     var $security_settings = array(
127     'PHP_HANDLING' => false,
128     'IF_FUNCS' => array('array', 'list',
129     'isset', 'empty',
130     'count', 'sizeof',
131     'in_array', 'is_array'),
132     'INCLUDE_ANY' => false,
133     'PHP_TAGS' => false,
134     'MODIFIER_FUNCS' => array('count')
135     );
136     var $trusted_dir = array(); // directories where trusted templates & php scripts
137     // reside ($security is disabled during their
138     // inclusion/execution).
139    
140     var $left_delimiter = '{'; // template tag delimiters.
141     var $right_delimiter = '}';
142    
143     var $compiler_class = 'Smarty_Compiler'; // the compiler class used by
144     // Smarty to compile templates
145    
146     var $request_vars_order = "EGPCS"; // the order in which request variables are
147     // registered, similar to variables_order
148     // in php.ini
149    
150     var $compile_id = null; // persistent compile identifier
151     var $use_sub_dirs = true; // use sub dirs for cache and compiled files?
152     // sub directories are more efficient, but
153     // you can set this to false if your PHP environment
154     // does not allow the creation of them.
155     var $default_modifiers = array();
156     // modifiers to implicitly append to every var
157     // example: array('escape:"htmlall"');
158    
159     /**************************************************************************/
160     /* END SMARTY CONFIGURATION SECTION */
161     /* There should be no need to touch anything below this line. */
162     /**************************************************************************/
163    
164     // internal vars
165     var $_error_msg = false; // error messages. true/false
166     var $_tpl_vars = array(); // where assigned template vars are kept
167     var $_smarty_vars = null; // stores run-time $smarty.* vars
168     var $_sections = array(); // keeps track of sections
169     var $_foreach = array(); // keeps track of foreach blocks
170     var $_tag_stack = array(); // keeps track of tag hierarchy
171     var $_conf_obj = null; // configuration object
172     var $_config = array(); // loaded configuration settings
173     var $_smarty_md5 = 'f8d698aea36fcbead2b9d5359ffca76f'; // md5 checksum of the string 'Smarty'
174     var $_version = '2.3.0'; // Smarty version number
175     var $_extract = false; // flag for custom functions
176     var $_inclusion_depth = 0; // current template inclusion depth
177     var $_compile_id = null; // for different compiled templates
178     var $_smarty_debug_id = 'SMARTY_DEBUG'; // text in URL to enable debug mode
179     var $_smarty_debug_info = array(); // debugging information for debug console
180     var $_cache_info = array(); // info that makes up a cache file
181     var $_plugins = array( // table keeping track of plugins
182     'modifier' => array(),
183     'function' => array(),
184     'block' => array(),
185     'compiler' => array(),
186     'prefilter' => array(),
187     'postfilter' => array(),
188     'outputfilter' => array(),
189     'resource' => array(),
190     'insert' => array());
191    
192    
193     /*======================================================================*\
194     Function: Smarty
195     Purpose: Constructor
196     \*======================================================================*/
197     function Smarty()
198     {
199     foreach ($this->global_assign as $key => $var_name) {
200     if (is_array($var_name)) {
201     foreach ($var_name as $var) {
202     if (isset($GLOBALS[$key][$var])) {
203     $this->assign($var, $GLOBALS[$key][$var]);
204     } else {
205     $this->assign($var, $this->undefined);
206     }
207     }
208     } else {
209     if (isset($GLOBALS[$var_name])) {
210     $this->assign($var_name, $GLOBALS[$var_name]);
211     } else {
212     $this->assign($var_name, $this->undefined);
213     }
214     }
215     }
216    
217     if(empty($this->debug_tpl)) {
218     // set path to debug template from SMARTY_DIR
219     $this->debug_tpl = 'file:'.SMARTY_DIR.'debug.tpl';
220     }
221     }
222    
223    
224     /*======================================================================*\
225     Function: assign()
226     Purpose: assigns values to template variables
227     \*======================================================================*/
228     function assign($tpl_var, $value = NULL)
229     {
230     if (is_array($tpl_var)){
231     foreach ($tpl_var as $key => $val) {
232     if ($key != '' && isset($val)) {
233     $this->_tpl_vars[$key] = $val;
234     }
235     }
236     } else {
237     if ($tpl_var != '' && isset($value))
238     $this->_tpl_vars[$tpl_var] = $value;
239     }
240     $this->_extract = true;
241     }
242    
243     /*======================================================================*\
244     Function: assign_by_ref()
245     Purpose: assigns values to template variables by reference
246     \*======================================================================*/
247     function assign_by_ref($tpl_var, &$value)
248     {
249     if ($tpl_var != '' && isset($value))
250     $this->_tpl_vars[$tpl_var] = &$value;
251     $this->_extract = true;
252     }
253    
254     /*======================================================================*\
255     Function: append
256     Purpose: appends values to template variables
257     \*======================================================================*/
258     function append($tpl_var, $value = NULL)
259     {
260     if (is_array($tpl_var)) {
261     foreach ($tpl_var as $key => $val) {
262     if ($key != '') {
263     if(!@is_array($this->_tpl_vars[$key])) {
264     settype($this->_tpl_vars[$key],'array');
265     }
266     $this->_tpl_vars[$key][] = $val;
267     }
268     }
269     } else {
270     if ($tpl_var != '' && isset($value)) {
271     if(!@is_array($this->_tpl_vars[$tpl_var])) {
272     settype($this->_tpl_vars[$tpl_var],'array');
273     }
274     $this->_tpl_vars[$tpl_var][] = $value;
275     }
276     }
277     $this->_extract = true;
278     }
279    
280     /*======================================================================*\
281     Function: append_by_ref
282     Purpose: appends values to template variables by reference
283     \*======================================================================*/
284     function append_by_ref($tpl_var, &$value)
285     {
286     if ($tpl_var != '' && isset($value)) {
287     if(!@is_array($this->_tpl_vars[$tpl_var])) {
288     settype($this->_tpl_vars[$tpl_var],'array');
289     }
290     $this->_tpl_vars[$tpl_var][] = &$value;
291     }
292     $this->_extract = true;
293     }
294    
295    
296     /*======================================================================*\
297     Function: clear_assign()
298     Purpose: clear the given assigned template variable.
299     \*======================================================================*/
300     function clear_assign($tpl_var)
301     {
302     if (is_array($tpl_var))
303     foreach ($tpl_var as $curr_var)
304     unset($this->_tpl_vars[$curr_var]);
305     else
306     unset($this->_tpl_vars[$tpl_var]);
307     }
308    
309    
310     /*======================================================================*\
311     Function: register_function
312     Purpose: Registers custom function to be used in templates
313     \*======================================================================*/
314     function register_function($function, $function_impl)
315     {
316     $this->_plugins['function'][$function] =
317     array($function_impl, null, null, false);
318     }
319    
320     /*======================================================================*\
321     Function: unregister_function
322     Purpose: Unregisters custom function
323     \*======================================================================*/
324     function unregister_function($function)
325     {
326     unset($this->_plugins['function'][$function]);
327     }
328    
329     /*======================================================================*\
330     Function: register_block
331     Purpose: Registers block function to be used in templates
332     \*======================================================================*/
333     function register_block($block, $block_impl)
334     {
335     $this->_plugins['block'][$block] =
336     array($block_impl, null, null, false);
337     }
338    
339     /*======================================================================*\
340     Function: unregister_block
341     Purpose: Unregisters block function
342     \*======================================================================*/
343     function unregister_block($block)
344     {
345     unset($this->_plugins['block'][$block]);
346     }
347    
348     /*======================================================================*\
349     Function: register_compiler_function
350     Purpose: Registers compiler function
351     \*======================================================================*/
352     function register_compiler_function($function, $function_impl)
353     {
354     $this->_plugins['compiler'][$function] =
355     array($function_impl, null, null, false);
356     }
357    
358     /*======================================================================*\
359     Function: unregister_compiler_function
360     Purpose: Unregisters compiler function
361     \*======================================================================*/
362     function unregister_compiler_function($function)
363     {
364     unset($this->_plugins['compiler'][$function]);
365     }
366    
367     /*======================================================================*\
368     Function: register_modifier
369     Purpose: Registers modifier to be used in templates
370     \*======================================================================*/
371     function register_modifier($modifier, $modifier_impl)
372     {
373     $this->_plugins['modifier'][$modifier] =
374     array($modifier_impl, null, null, false);
375     }
376    
377     /*======================================================================*\
378     Function: unregister_modifier
379     Purpose: Unregisters modifier
380     \*======================================================================*/
381     function unregister_modifier($modifier)
382     {
383     unset($this->_plugins['modifier'][$modifier]);
384     }
385    
386     /*======================================================================*\
387     Function: register_resource
388     Purpose: Registers a resource to fetch a template
389     \*======================================================================*/
390     function register_resource($type, $functions)
391     {
392     $this->_plugins['resource'][$type] =
393     array((array)$functions, false);
394     }
395    
396     /*======================================================================*\
397     Function: unregister_resource
398     Purpose: Unregisters a resource
399     \*======================================================================*/
400     function unregister_resource($type)
401     {
402     unset($this->_plugins['resource'][$type]);
403     }
404    
405     /*======================================================================*\
406     Function: register_prefilter
407     Purpose: Registers a prefilter function to apply
408     to a template before compiling
409     \*======================================================================*/
410     function register_prefilter($function)
411     {
412     $this->_plugins['prefilter'][$function]
413     = array($function, null, null, false);
414     }
415    
416     /*======================================================================*\
417     Function: unregister_prefilter
418     Purpose: Unregisters a prefilter function
419     \*======================================================================*/
420     function unregister_prefilter($function)
421     {
422     unset($this->_plugins['prefilter'][$function]);
423     }
424    
425     /*======================================================================*\
426     Function: register_postfilter
427     Purpose: Registers a postfilter function to apply
428     to a compiled template after compilation
429     \*======================================================================*/
430     function register_postfilter($function)
431     {
432     $this->_plugins['postfilter'][$function]
433     = array($function, null, null, false);
434     }
435    
436     /*======================================================================*\
437     Function: unregister_postfilter
438     Purpose: Unregisters a postfilter function
439     \*======================================================================*/
440     function unregister_postfilter($function)
441     {
442     unset($this->_plugins['postfilter'][$function]);
443     }
444    
445     /*======================================================================*\
446     Function: register_outputfilter
447     Purpose: Registers an output filter function to apply
448     to a template output
449     \*======================================================================*/
450     function register_outputfilter($function)
451     {
452     $this->_plugins['outputfilter'][$function]
453     = array($function, null, null, false);
454     }
455    
456     /*======================================================================*\
457     Function: unregister_outputfilter
458     Purpose: Unregisters an outputfilter function
459     \*======================================================================*/
460     function unregister_outputfilter($function)
461     {
462     unset($this->_plugins['outputfilter'][$function]);
463     }
464    
465     /*======================================================================*\
466     Function: load_filter()
467     Purpose: load a filter of specified type and name
468     \*======================================================================*/
469     function load_filter($type, $name)
470     {
471     switch ($type) {
472     case 'output':
473     $this->_load_plugins(array(array($type . 'filter', $name, null, null, false)));
474     break;
475    
476     case 'pre':
477     case 'post':
478     if (!isset($this->_plugins[$type . 'filter'][$name]))
479     $this->_plugins[$type . 'filter'][$name] = false;
480     break;
481     }
482     }
483    
484     /*======================================================================*\
485     Function: clear_cache()
486     Purpose: clear cached content for the given template and cache id
487     \*======================================================================*/
488     function clear_cache($tpl_file = null, $cache_id = null, $compile_id = null, $exp_time = null)
489     {
490    
491     if (!isset($compile_id))
492     $compile_id = $this->compile_id;
493    
494     if (isset($cache_id))
495     $auto_id = (isset($compile_id)) ? $cache_id . '|' . $compile_id : $cache_id;
496     elseif(isset($compile_id))
497     $auto_id = $compile_id;
498     else
499     $auto_id = null;
500    
501     if (!empty($this->cache_handler_func)) {
502     $funcname = $this->cache_handler_func;
503     return $funcname('clear', $this, $dummy, $tpl_file, $cache_id, $compile_id);
504     } else {
505     return $this->_rm_auto($this->cache_dir, $tpl_file, $auto_id, $exp_time);
506     }
507    
508     }
509    
510    
511     /*======================================================================*\
512     Function: clear_all_cache()
513     Purpose: clear the entire contents of cache (all templates)
514     \*======================================================================*/
515     function clear_all_cache($exp_time = null)
516     {
517     if (!empty($this->cache_handler_func)) {
518     $funcname = $this->cache_handler_func;
519     return $funcname('clear', $this, $dummy);
520     } else {
521     return $this->_rm_auto($this->cache_dir,null,null,$exp_time);
522     }
523     }
524    
525    
526     /*======================================================================*\
527     Function: is_cached()
528     Purpose: test to see if valid cache exists for this template
529     \*======================================================================*/
530     function is_cached($tpl_file, $cache_id = null, $compile_id = null)
531     {
532     if (!$this->caching)
533     return false;
534    
535     if (!isset($compile_id))
536     $compile_id = $this->compile_id;
537    
538     return $this->_read_cache_file($tpl_file, $cache_id, $compile_id, $results);
539     }
540    
541    
542     /*======================================================================*\
543     Function: clear_all_assign()
544     Purpose: clear all the assigned template variables.
545     \*======================================================================*/
546     function clear_all_assign()
547     {
548     $this->_tpl_vars = array();
549     }
550    
551     /*======================================================================*\
552     Function: clear_compiled_tpl()
553     Purpose: clears compiled version of specified template resource,
554     or all compiled template files if one is not specified.
555     This function is for advanced use only, not normally needed.
556     \*======================================================================*/
557     function clear_compiled_tpl($tpl_file = null, $compile_id = null, $exp_time = null)
558     {
559     if (!isset($compile_id))
560     $compile_id = $this->compile_id;
561     return $this->_rm_auto($this->compile_dir, $tpl_file, $compile_id, $exp_time);
562     }
563    
564     /*======================================================================*\
565     Function: template_exists()
566     Purpose: Checks whether requested template exists.
567     \*======================================================================*/
568     function template_exists($tpl_file)
569     {
570     return $this->_fetch_template_info($tpl_file, $source, $timestamp, true, true);
571     }
572    
573     /*======================================================================*\
574     Function: get_template_vars
575     Purpose: Returns an array containing template variables
576     \*======================================================================*/
577     function &get_template_vars()
578     {
579     return $this->_tpl_vars;
580     }
581    
582    
583     /*======================================================================*\
584     Function: trigger_error
585     Purpose: trigger Smarty error
586     \*======================================================================*/
587     function trigger_error($error_msg, $error_type = E_USER_WARNING)
588     {
589     trigger_error("Smarty error: $error_msg", $error_type);
590     }
591    
592    
593     /*======================================================================*\
594     Function: display()
595     Purpose: executes & displays the template results
596     \*======================================================================*/
597     function display($tpl_file, $cache_id = null, $compile_id = null)
598     {
599     $this->fetch($tpl_file, $cache_id, $compile_id, true);
600     }
601    
602     /*======================================================================*\
603     Function: fetch()
604     Purpose: executes & returns or displays the template results
605     \*======================================================================*/
606     function fetch($_smarty_tpl_file, $_smarty_cache_id = null, $_smarty_compile_id = null, $_smarty_display = false)
607     {
608     $_smarty_old_error_level = $this->debugging ? error_reporting() : error_reporting(error_reporting() & ~E_NOTICE);
609    
610     if (!$this->debugging && $this->debugging_ctrl == 'URL'
611     && strstr($GLOBALS['HTTP_SERVER_VARS']['QUERY_STRING'], $this->_smarty_debug_id)) {
612     $this->debugging = true;
613     }
614    
615     if ($this->debugging) {
616     // capture time for debugging info
617     $debug_start_time = $this->_get_microtime();
618     $this->_smarty_debug_info[] = array('type' => 'template',
619     'filename' => $_smarty_tpl_file,
620     'depth' => 0);
621     $included_tpls_idx = count($this->_smarty_debug_info) - 1;
622     }
623    
624     if (!isset($_smarty_compile_id))
625     $_smarty_compile_id = $this->compile_id;
626    
627     $this->_compile_id = $_smarty_compile_id;
628    
629     $this->_inclusion_depth = 0;
630    
631     if ($this->caching) {
632     if ($this->_read_cache_file($_smarty_tpl_file, $_smarty_cache_id, $_smarty_compile_id, $_smarty_results)) {
633     if (@count($this->_cache_info['insert_tags'])) {
634     $this->_load_plugins($this->_cache_info['insert_tags']);
635     $_smarty_results = $this->_process_cached_inserts($_smarty_results);
636     }
637     if ($_smarty_display) {
638     if ($this->debugging)
639     {
640     // capture time for debugging info
641     $this->_smarty_debug_info[$included_tpls_idx]['exec_time'] = $this->_get_microtime() - $debug_start_time;
642    
643     $_smarty_results .= $this->_generate_debug_output();
644     }
645     if ($this->cache_modified_check) {
646     $last_modified_date = substr($GLOBALS['HTTP_SERVER_VARS']['HTTP_IF_MODIFIED_SINCE'], 0, strpos($GLOBALS['HTTP_SERVER_VARS']['HTTP_IF_MODIFIED_SINCE'], 'GMT') + 3);
647     $gmt_mtime = gmdate('D, d M Y H:i:s', $this->_cache_info['timestamp']).' GMT';
648     if (@count($this->_cache_info['insert_tags']) == 0
649     && $gmt_mtime == $last_modified_date) {
650     header("HTTP/1.1 304 Not Modified");
651     } else {
652     header("Last-Modified: ".$gmt_mtime);
653     echo $_smarty_results;
654     }
655     } else {
656     echo $_smarty_results;
657     }
658     error_reporting($_smarty_old_error_level);
659     return true;
660     } else {
661     error_reporting($_smarty_old_error_level);
662     return $_smarty_results;
663     }
664     } else {
665     $this->_cache_info = array();
666     $this->_cache_info['template'][] = $_smarty_tpl_file;
667     }
668     }
669    
670     extract($this->_tpl_vars);
671    
672     /* Initialize config array. */
673     $this->_config = array(array('vars' => array(),
674     'files' => array()));
675    
676     if (count($this->autoload_filters))
677     $this->_autoload_filters();
678    
679     $_smarty_compile_path = $this->_get_compile_path($_smarty_tpl_file);
680    
681     // if we just need to display the results, don't perform output
682     // buffering - for speed
683     if ($_smarty_display && !$this->caching && count($this->_plugins['outputfilter']) == 0) {
684     if ($this->_process_template($_smarty_tpl_file, $_smarty_compile_path))
685     {
686     include($_smarty_compile_path);
687     }
688     } else {
689     ob_start();
690     if ($this->_process_template($_smarty_tpl_file, $_smarty_compile_path))
691     {
692     include($_smarty_compile_path);
693     }
694     $_smarty_results = ob_get_contents();
695     ob_end_clean();
696    
697     foreach ((array)$this->_plugins['outputfilter'] as $output_filter) {
698     $_smarty_results = $output_filter[0]($_smarty_results, $this);
699     }
700     }
701    
702     if ($this->caching) {
703     $this->_write_cache_file($_smarty_tpl_file, $_smarty_cache_id, $_smarty_compile_id, $_smarty_results);
704     $_smarty_results = $this->_process_cached_inserts($_smarty_results);
705     }
706    
707     if ($_smarty_display) {
708     if (isset($_smarty_results)) { echo $_smarty_results; }
709     if ($this->debugging) {
710     // capture time for debugging info
711     $this->_smarty_debug_info[$included_tpls_idx]['exec_time'] = ($this->_get_microtime() - $debug_start_time);
712    
713     echo $this->_generate_debug_output();
714     }
715     error_reporting($_smarty_old_error_level);
716     return;
717     } else {
718     error_reporting($_smarty_old_error_level);
719     if (isset($_smarty_results)) { return $_smarty_results; }
720     }
721     }
722    
723    
724     /*======================================================================*\
725     Function: _assign_smarty_interface
726     Purpose: assign $smarty interface variable
727     \*======================================================================*/
728     function _assign_smarty_interface()
729     {
730     if ($this->_smarty_vars !== null)
731     return;
732    
733     $globals_map = array('g' => 'HTTP_GET_VARS',
734     'p' => 'HTTP_POST_VARS',
735     'c' => 'HTTP_COOKIE_VARS',
736     's' => 'HTTP_SERVER_VARS',
737     'e' => 'HTTP_ENV_VARS');
738    
739     $smarty = array('request' => array());
740    
741     foreach (preg_split('!!', strtolower($this->request_vars_order)) as $c) {
742     if (isset($globals_map[$c])) {
743     $smarty['request'] = array_merge($smarty['request'], $GLOBALS[$globals_map[$c]]);
744     }
745     }
746     $smarty['request'] = @array_merge($smarty['request'], $GLOBALS['HTTP_SESSION_VARS']);
747    
748     $this->_smarty_vars = $smarty;
749     }
750    
751    
752     /*======================================================================*\
753     Function: _generate_debug_output()
754     Purpose: generate debug output
755     \*======================================================================*/
756    
757     function _generate_debug_output() {
758     // we must force compile the debug template in case the environment
759     // changed between separate applications.
760     $_ldelim_orig = $this->left_delimiter;
761     $_rdelim_orig = $this->right_delimiter;
762    
763     $this->left_delimiter = '{';
764     $this->right_delimiter = '}';
765    
766     $_force_compile_orig = $this->force_compile;
767     $this->force_compile = true;
768     $_compile_id_orig = $this->_compile_id;
769     $this->_compile_id = null;
770    
771     $compile_path = $this->_get_compile_path($this->debug_tpl);
772     if ($this->_process_template($this->debug_tpl, $compile_path))
773     {
774     ob_start();
775     include($compile_path);
776     $results = ob_get_contents();
777     ob_end_clean();
778     }
779     $this->force_compile = $_force_compile_orig;
780     $this->_compile_id = $_compile_id_orig;
781    
782     $this->left_delimiter = $_ldelim_orig;
783     $this->right_delimiter = $_rdelim_orig;
784    
785     return $results;
786     }
787    
788     /*======================================================================*\
789     Function: _is_trusted()
790     Purpose: determines if a resource is trusted or not
791     \*======================================================================*/
792     function _is_trusted($resource_type, $resource_name)
793     {
794     $_smarty_trusted = false;
795     if ($resource_type == 'file') {
796     if (!empty($this->trusted_dir)) {
797     // see if template file is within a trusted directory. If so,
798     // disable security during the execution of the template.
799    
800     if (!empty($this->trusted_dir)) {
801     foreach ((array)$this->trusted_dir as $curr_dir) {
802     if (!empty($curr_dir) && is_readable ($curr_dir)) {
803     if (substr(realpath($resource_name),0, strlen(realpath($curr_dir))) == realpath($curr_dir)) {
804     $_smarty_trusted = true;
805     break;
806     }
807     }
808     }
809     }
810     }
811     } else {
812     // resource is not on local file system
813     $resource_func = $this->_plugins['resource'][$resource_type][0][3];
814     $_smarty_trusted = $resource_func($resource_name, $this);
815     }
816    
817     return $_smarty_trusted;
818     }
819    
820     /*======================================================================*\
821     Function: _is_secure()
822     Purpose: determines if a resource is secure or not.
823     \*======================================================================*/
824     function _is_secure($resource_type, $resource_name)
825     {
826     if (!$this->security || $this->security_settings['INCLUDE_ANY']) {
827     return true;
828     }
829    
830     $_smarty_secure = false;
831     if ($resource_type == 'file') {
832     if (!empty($this->secure_dir)) {
833     foreach ((array)$this->secure_dir as $curr_dir) {
834     if ( !empty($curr_dir) && is_readable ($curr_dir)) {
835     if (substr(realpath($resource_name),0, strlen(realpath($curr_dir))) == realpath($curr_dir)) {
836     $_smarty_secure = true;
837     break;
838     }
839     }
840     }
841     }
842     } else {
843     // resource is not on local file system
844     $resource_func = $this->_plugins['resource'][$resource_type][0][2];
845     $_smarty_secure = $resource_func($resource_name, $_smarty_secure, $this);
846     }
847    
848     return $_smarty_secure;
849     }
850    
851    
852     /*======================================================================*\
853     Function: _get_php_resource
854     Purpose: Retrieves PHP script resource
855     \*======================================================================*/
856     function _get_php_resource($resource, &$resource_type, &$php_resource)
857     {
858     $this->_parse_file_path($this->trusted_dir, $resource, $resource_type, $resource_name);
859    
860     /*
861     * Find out if the resource exists.
862     */
863    
864     if ($resource_type == 'file') {
865     $readable = false;
866     if(@is_file($resource_name)) {
867     $readable = true;
868     } else {
869     // test for file in include_path
870     if($this->_get_include_path($resource_name,$_include_path)) {
871     $readable = true;
872     }
873     }
874     } else if ($resource_type != 'file') {
875     $readable = true;
876     $resource_func = $this->_plugins['resource'][$resource_type][0][0];
877     $readable = $resource_func($resource_name, $template_source, $this);
878     }
879    
880     /*
881     * Set the error function, depending on which class calls us.
882     */
883     if (method_exists($this, '_syntax_error')) {
884     $error_func = '_syntax_error';
885     } else {
886     $error_func = 'trigger_error';
887     }
888    
889     if ($readable) {
890     if ($this->security) {
891     if (!$this->_is_trusted($resource_type, $resource_name)) {
892     $this->$error_func("(secure mode) '$resource_type:$resource_name' is not trusted");
893     return false;
894     }
895     }
896     } else {
897     $this->$error_func("'$resource_type: $resource_name' is not readable");
898     return false;
899     }
900    
901     if ($resource_type == 'file') {
902     $php_resource = $resource_name;
903     } else {
904     $php_resource = $template_source;
905     }
906    
907     return true;
908     }
909    
910    
911     /*======================================================================*\
912     Function: _process_template()
913     Purpose:
914     \*======================================================================*/
915     function _process_template($tpl_file, $compile_path)
916     {
917     // test if template needs to be compiled
918     if (!$this->force_compile && file_exists($compile_path)) {
919     if (!$this->compile_check) {
920     // no need to check if the template needs recompiled
921     return true;
922     } else {
923     // get template source and timestamp
924     if (!$this->_fetch_template_info($tpl_file, $template_source,
925     $template_timestamp)) {
926     return false;
927     }
928     if ($template_timestamp <= filemtime($compile_path)) {
929     // template not expired, no recompile
930     return true;
931     } else {
932     // compile template
933     $this->_compile_template($tpl_file, $template_source, $template_compiled);
934     $this->_write_compiled_template($compile_path, $template_compiled);
935     return true;
936     }
937     }
938     } else {
939     // compiled template does not exist, or forced compile
940     if (!$this->_fetch_template_info($tpl_file, $template_source,
941     $template_timestamp)) {
942     return false;
943     }
944     $this->_compile_template($tpl_file, $template_source, $template_compiled);
945     $this->_write_compiled_template($compile_path, $template_compiled);
946     return true;
947     }
948     }
949    
950     /*======================================================================*\
951     Function: _get_compile_path
952     Purpose: Get the compile path for this template file
953     \*======================================================================*/
954     function _get_compile_path($tpl_file)
955     {
956     return $this->_get_auto_filename($this->compile_dir, $tpl_file,
957     $this->_compile_id);
958     }
959    
960     /*======================================================================*\
961     Function: _write_compiled_template
962     Purpose:
963     \*======================================================================*/
964     function _write_compiled_template($compile_path, $template_compiled)
965     {
966     // we save everything into $compile_dir
967     $this->_write_file($compile_path, $template_compiled, true);
968     return true;
969     }
970    
971     /*======================================================================*\
972     Function: _parse_file_path
973     Purpose: parse out the type and name from the template resource
974     \*======================================================================*/
975     function _parse_file_path($file_base_path, $file_path, &$resource_type, &$resource_name)
976     {
977     // split tpl_path by the first colon
978     $_file_path_parts = explode(':', $file_path, 2);
979    
980     if (count($_file_path_parts) == 1) {
981     // no resource type, treat as type "file"
982     $resource_type = 'file';
983     $resource_name = $_file_path_parts[0];
984     } else {
985     $resource_type = $_file_path_parts[0];
986     $resource_name = $_file_path_parts[1];
987     if ($resource_type != 'file') {
988     $this->_load_resource_plugin($resource_type);
989     }
990     }
991    
992     if ($resource_type == 'file') {
993     if (!preg_match("/^([\/\\\\]|[a-zA-Z]:[\/\\\\])/", $resource_name)) {
994     // relative pathname to $file_base_path
995     // use the first directory where the file is found
996     foreach ((array)$file_base_path as $_curr_path) {
997     $_fullpath = $_curr_path . DIR_SEP . $resource_name;
998     if (@is_file($_fullpath)) {
999     $resource_name = $_fullpath;
1000     return true;
1001     }
1002     // didn't find the file, try include_path
1003     if($this->_get_include_path($_fullpath, $_include_path)) {
1004     $resource_name = $_include_path;
1005     return true;
1006     }
1007     }
1008     return false;
1009     }
1010     }
1011    
1012     // resource type != file
1013     return true;
1014     }
1015    
1016    
1017     /*======================================================================*\
1018     Function: _fetch_template_info()
1019     Purpose: fetch the template info. Gets timestamp, and source
1020     if get_source is true
1021     \*======================================================================*/
1022     function _fetch_template_info($tpl_path, &$template_source, &$template_timestamp, $get_source = true, $quiet = false)
1023     {
1024     $_return = false;
1025     if ($this->_parse_file_path($this->template_dir, $tpl_path, $resource_type, $resource_name)) {
1026     switch ($resource_type) {
1027     case 'file':
1028     if ($get_source) {
1029     $template_source = $this->_read_file($resource_name);
1030     }
1031     $template_timestamp = filemtime($resource_name);
1032     $_return = true;
1033     break;
1034    
1035     default:
1036     // call resource functions to fetch the template source and timestamp
1037     if ($get_source) {
1038     $resource_func = $this->_plugins['resource'][$resource_type][0][0];
1039     $_source_return = $resource_func($resource_name, $template_source, $this);
1040     } else {
1041     $_source_return = true;
1042     }
1043     $resource_func = $this->_plugins['resource'][$resource_type][0][1];
1044     $_timestamp_return = $resource_func($resource_name, $template_timestamp, $this);
1045     $_return = $_source_return && $_timestamp_return;
1046     break;
1047     }
1048     }
1049    
1050     if (!$_return) {
1051     // see if we can get a template with the default template handler
1052     if (!empty($this->default_template_handler_func)) {
1053     if (!function_exists($this->default_template_handler_func)) {
1054     $this->trigger_error("default template handler function \"$this->default_template_handler_func\" doesn't exist.");
1055     $_return = false;
1056     }
1057     $funcname = $this->default_template_handler_func;
1058     $_return = $funcname($resource_type, $resource_name, $template_source, $template_timestamp, $this);
1059     }
1060     }
1061    
1062     if (!$_return) {
1063     if (!$quiet) {
1064     $this->trigger_error("unable to read template resource: \"$tpl_path\"");
1065     }
1066     } else if ($_return && $this->security && !$this->_is_secure($resource_type, $resource_name)) {
1067     if (!$quiet)
1068     $this->trigger_error("(secure mode) accessing \"$tpl_path\" is not allowed");
1069     $template_source = null;
1070     $template_timestamp = null;
1071     return false;
1072     }
1073    
1074     return $_return;
1075     }
1076    
1077    
1078     /*======================================================================*\
1079     Function: _compile_template()
1080     Purpose: called to compile the templates
1081     \*======================================================================*/
1082     function _compile_template($tpl_file, $template_source, &$template_compiled)
1083     {
1084     require_once SMARTY_DIR.$this->compiler_class . '.class.php';
1085    
1086     $smarty_compiler = new $this->compiler_class;
1087    
1088     $smarty_compiler->template_dir = $this->template_dir;
1089     $smarty_compiler->compile_dir = $this->compile_dir;
1090     $smarty_compiler->plugins_dir = $this->plugins_dir;
1091     $smarty_compiler->config_dir = $this->config_dir;
1092     $smarty_compiler->force_compile = $this->force_compile;
1093     $smarty_compiler->caching = $this->caching;
1094     $smarty_compiler->php_handling = $this->php_handling;
1095     $smarty_compiler->left_delimiter = $this->left_delimiter;
1096     $smarty_compiler->right_delimiter = $this->right_delimiter;
1097     $smarty_compiler->_version = $this->_version;
1098     $smarty_compiler->security = $this->security;
1099     $smarty_compiler->secure_dir = $this->secure_dir;
1100     $smarty_compiler->security_settings = $this->security_settings;
1101     $smarty_compiler->trusted_dir = $this->trusted_dir;
1102     $smarty_compiler->_plugins = &$this->_plugins;
1103     $smarty_compiler->_tpl_vars = &$this->_tpl_vars;
1104     $smarty_compiler->default_modifiers = $this->default_modifiers;
1105    
1106     if ($smarty_compiler->_compile_file($tpl_file, $template_source, $template_compiled))
1107     return true;
1108     else {
1109     $this->trigger_error($smarty_compiler->_error_msg);
1110     return false;
1111     }
1112     }
1113    
1114     /*======================================================================*\
1115     Function: _smarty_include()
1116     Purpose: called for included templates
1117     \*======================================================================*/
1118     function _smarty_include($_smarty_include_tpl_file, $_smarty_include_vars)
1119     {
1120     if ($this->debugging) {
1121     $debug_start_time = $this->_get_microtime();
1122     $this->_smarty_debug_info[] = array('type' => 'template',
1123     'filename' => $_smarty_include_tpl_file,
1124     'depth' => ++$this->_inclusion_depth);
1125     $included_tpls_idx = count($this->_smarty_debug_info) - 1;
1126     }
1127    
1128     $this->_tpl_vars = array_merge($this->_tpl_vars, $_smarty_include_vars);
1129     extract($this->_tpl_vars);
1130    
1131     array_unshift($this->_config, $this->_config[0]);
1132     $_smarty_compile_path = $this->_get_compile_path($_smarty_include_tpl_file);
1133    
1134     if ($this->_process_template($_smarty_include_tpl_file, $_smarty_compile_path)) {
1135     include($_smarty_compile_path);
1136     }
1137    
1138     array_shift($this->_config);
1139     $this->_inclusion_depth--;
1140    
1141     if ($this->debugging) {
1142     // capture time for debugging info
1143     $this->_smarty_debug_info[$included_tpls_idx]['exec_time'] = $this->_get_microtime() - $debug_start_time;
1144     }
1145    
1146     if ($this->caching) {
1147     $this->_cache_info['template'][] = $_smarty_include_tpl_file;
1148     }
1149     }
1150    
1151     /*======================================================================*\
1152     Function: _smarty_include_php()
1153     Purpose: called for included templates
1154     \*======================================================================*/
1155     function _smarty_include_php($_smarty_include_php_file, $_smarty_assign, $_smarty_once)
1156     {
1157     $this->_get_php_resource($_smarty_include_php_file, $_smarty_resource_type,
1158     $_smarty_php_resource);
1159    
1160     if (!empty($_smarty_assign)) {
1161     ob_start();
1162     if ($_smarty_resource_type == 'file') {
1163     if($_smarty_once) {
1164     include_once($_smarty_php_resource);
1165     } else {
1166     include($_smarty_php_resource);
1167     }
1168     } else {
1169     eval($_smarty_php_resource);
1170     }
1171     $this->assign($_smarty_assign, ob_get_contents());
1172     ob_end_clean();
1173     } else {
1174     if ($_smarty_resource_type == 'file') {
1175     if($_smarty_once) {
1176     include_once($_smarty_php_resource);
1177     } else {
1178     include($_smarty_php_resource);
1179     }
1180     } else {
1181     eval($_smarty_php_resource);
1182     }
1183     }
1184     }
1185    
1186     /*======================================================================*\
1187     Function: _config_load
1188     Purpose: load configuration values
1189     \*======================================================================*/
1190     function _config_load($file, $section, $scope)
1191     {
1192     if(@is_dir($this->config_dir)) {
1193     $_config_dir = $this->config_dir;
1194     } else {
1195     // config_dir not found, try include_path
1196     $this->_get_include_path($this->config_dir,$_config_dir);
1197     }
1198    
1199     if ($this->_conf_obj === null) {
1200     /* Prepare the configuration object. */
1201     if (!class_exists('Config_File'))
1202     require_once SMARTY_DIR.'Config_File.class.php';
1203     $this->_conf_obj = new Config_File($_config_dir);
1204     $this->_conf_obj->read_hidden = false;
1205     } else {
1206     $this->_conf_obj->set_path($_config_dir);
1207     }
1208    
1209     if ($this->debugging) {
1210     $debug_start_time = $this->_get_microtime();
1211     }
1212    
1213     if ($this->caching) {
1214     $this->_cache_info['config'][] = $file;
1215     }
1216    
1217     if (!isset($this->_config[0]['files'][$file])) {
1218     $this->_config[0]['vars'] = array_merge($this->_config[0]['vars'], $this->_conf_obj->get($file));
1219     $this->_config[0]['files'][$file] = true;
1220     }
1221     if ($scope == 'parent') {
1222     if (count($this->_config) > 0 && !isset($this->_config[1]['files'][$file])) {
1223     $this->_config[1]['vars'] = array_merge($this->_config[1]['vars'], $this->_conf_obj->get($file));
1224     $this->_config[1]['files'][$file] = true;
1225     }
1226     } else if ($scope == 'global')
1227     for ($i = 1, $for_max = count($this->_config); $i < $for_max; $i++) {
1228     if (!isset($this->_config[$i]['files'][$file])) {
1229     $this->_config[$i]['vars'] = array_merge($this->_config[$i]['vars'], $this->_conf_obj->get($file));
1230     $this->_config[$i]['files'][$file] = true;
1231     }
1232     }
1233    
1234     if (!empty($section)) {
1235     $this->_config[0]['vars'] = array_merge($this->_config[0]['vars'], $this->_conf_obj->get($file, $section));
1236     if ($scope == 'parent') {
1237     if (count($this->_config) > 0)
1238     $this->_config[1]['vars'] = array_merge($this->_config[1]['vars'], $this->_conf_obj->get($file, $section));
1239     } else if ($scope == 'global')
1240     for ($i = 1, $for_max = count($this->_config); $i < $for_max; $i++)
1241     $this->_config[$i]['vars'] = array_merge($this->_config[$i]['vars'], $this->_conf_obj->get($file, $section));
1242     }
1243    
1244     if ($this->debugging) {
1245     $debug_start_time = $this->_get_microtime();
1246     $this->_smarty_debug_info[] = array('type' => 'config',
1247     'filename' => $file.' ['.$section.'] '.$scope,
1248     'depth' => $this->_inclusion_depth,
1249     'exec_time' => $this->_get_microtime() - $debug_start_time);
1250     }
1251     }
1252    
1253    
1254     /*======================================================================*\
1255     Function: _process_cached_inserts
1256     Purpose: Replace cached inserts with the actual results
1257     \*======================================================================*/
1258     function _process_cached_inserts($results)
1259     {
1260     preg_match_all('!'.$this->_smarty_md5.'{insert_cache (.*)}'.$this->_smarty_md5.'!Uis',
1261     $results, $match);
1262     list($cached_inserts, $insert_args) = $match;
1263    
1264     for ($i = 0, $for_max = count($cached_inserts); $i < $for_max; $i++) {
1265     if ($this->debugging) {
1266     $debug_start_time = $this->_get_microtime();
1267     }
1268    
1269     $args = unserialize($insert_args[$i]);
1270    
1271     $name = $args['name'];
1272     unset($args['name']);
1273    
1274     if (isset($args['script'])) {
1275     if (!$this->_get_php_resource($this->_dequote($args['script']), $resource_type, $php_resource)) {
1276     return false;
1277     }
1278    
1279     if ($resource_type == 'file') {
1280     include_once($php_resource);
1281     } else {
1282     eval($php_resource);
1283     }
1284     unset($args['script']);
1285     }
1286    
1287     $function_name = $this->_plugins['insert'][$name][0];
1288     $replace = $function_name($args, $this);
1289    
1290     $results = str_replace($cached_inserts[$i], $replace, $results);
1291     if ($this->debugging) {
1292     $this->_smarty_debug_info[] = array('type' => 'insert',
1293     'filename' => 'insert_'.$name,
1294     'depth' => $this->_inclusion_depth,
1295     'exec_time' => $this->_get_microtime() - $debug_start_time);
1296     }
1297     }
1298    
1299     return $results;
1300     }
1301    
1302    
1303     /*======================================================================*\
1304     Function: _run_insert_handler
1305     Purpose: Handle insert tags
1306     \*======================================================================*/
1307     function _run_insert_handler($args)
1308     {
1309     if ($this->debugging) {
1310     $debug_start_time = $this->_get_microtime();
1311     }
1312    
1313     if ($this->caching) {
1314     $arg_string = serialize($args);
1315     $name = $args['name'];
1316     if (!isset($this->_cache_info['insert_tags'][$name])) {
1317     $this->_cache_info['insert_tags'][$name] = array('insert',
1318     $name,
1319     $this->_plugins['insert'][$name][1],
1320     $this->_plugins['insert'][$name][2],
1321     !empty($args['script']) ? true : false);
1322     }
1323     return $this->_smarty_md5."{insert_cache $arg_string}".$this->_smarty_md5;
1324     } else {
1325     if (isset($args['script'])) {
1326     if (!$this->_get_php_resource($this->_dequote($args['script']), $resource_type, $php_resource)) {
1327     return false;
1328     }
1329    
1330     if ($resource_type == 'file') {
1331     include_once($php_resource);
1332     } else {
1333     eval($php_resource);
1334     }
1335     unset($args['script']);
1336     }
1337    
1338     $function_name = $this->_plugins['insert'][$args['name']][0];
1339     $content = $function_name($args, $this);
1340     if ($this->debugging) {
1341     $this->_smarty_debug_info[] = array('type' => 'insert',
1342     'filename' => 'insert_'.$args['name'],
1343     'depth' => $this->_inclusion_depth,
1344     'exec_time' => $this->_get_microtime() - $debug_start_time);
1345     }
1346    
1347     if (!empty($args["assign"])) {
1348     $this->assign($args["assign"], $content);
1349     } else {
1350     return $content;
1351     }
1352     }
1353     }
1354    
1355    
1356     /*======================================================================*\
1357     Function: _run_mod_handler
1358     Purpose: Handle modifiers
1359     \*======================================================================*/
1360     function _run_mod_handler()
1361     {
1362     $args = func_get_args();
1363     list($modifier_name, $map_array) = array_splice($args, 0, 2);
1364     list($func_name, $tpl_file, $tpl_line) =
1365     $this->_plugins['modifier'][$modifier_name];
1366     $var = $args[0];
1367    
1368     if ($map_array && is_array($var)) {
1369     foreach ($var as $key => $val) {
1370     $args[0] = $val;
1371     $var[$key] = call_user_func_array($func_name, $args);
1372     }
1373     return $var;
1374     } else {
1375     return call_user_func_array($func_name, $args);
1376     }
1377     }
1378    
1379    
1380     /*======================================================================*\
1381     Function: _dequote
1382     Purpose: Remove starting and ending quotes from the string
1383     \*======================================================================*/
1384     function _dequote($string)
1385     {
1386     if (($string{0} == "'" || $string{0} == '"') &&
1387     $string{strlen($string)-1} == $string{0})
1388     return substr($string, 1, -1);
1389     else
1390     return $string;
1391     }
1392    
1393    
1394     /*======================================================================*\
1395     Function: _read_file()
1396     Purpose: read in a file from line $start for $lines.
1397     read the entire file if $start and $lines are null.
1398     \*======================================================================*/
1399     function _read_file($filename, $start=null, $lines=null)
1400     {
1401     if (!($fd = @fopen($filename, 'r'))) {
1402     return false;
1403     }
1404     flock($fd, LOCK_SH);
1405     if ($start == null && $lines == null) {
1406     // read the entire file
1407     $contents = fread($fd, filesize($filename));
1408     } else {
1409     if ( $start > 1 ) {
1410     // skip the first lines before $start
1411     for ($loop=1; $loop < $start; $loop++) {
1412     fgets($fd, 65536);
1413     }
1414     }
1415     if ( $lines == null ) {
1416     // read the rest of the file
1417     while (!feof($fd)) {
1418     $contents .= fgets($fd, 65536);
1419     }
1420     } else {
1421     // read up to $lines lines
1422     for ($loop=0; $loop < $lines; $loop++) {
1423     $contents .= fgets($fd, 65536);
1424     if (feof($fd)) {
1425     break;
1426     }
1427     }
1428     }
1429     }
1430     fclose($fd);
1431     return $contents;
1432     }
1433    
1434     /*======================================================================*\
1435     Function: _write_file()
1436     Purpose: write out a file
1437     \*======================================================================*/
1438     function _write_file($filename, $contents, $create_dirs = false)
1439     {
1440     if ($create_dirs)
1441     $this->_create_dir_structure(dirname($filename));
1442    
1443     if (!($fd = @fopen($filename, 'w'))) {
1444     $this->trigger_error("problem writing '$filename.'");
1445     return false;
1446     }
1447    
1448     // flock doesn't seem to work on several windows platforms (98, NT4, NT5, ?),
1449     // so we'll not use it at all in windows.
1450    
1451     if ( strtoupper(substr(PHP_OS, 0, 3)) == 'WIN' || (flock($fd, LOCK_EX)) ) {
1452     fwrite( $fd, $contents );
1453     fclose($fd);
1454     chmod($filename, 0644);
1455     }
1456    
1457     return true;
1458     }
1459    
1460     /*======================================================================*\
1461     Function: _get_auto_filename
1462     Purpose: get a concrete filename for automagically created content
1463     \*======================================================================*/
1464     function _get_auto_filename($auto_base, $auto_source = null, $auto_id = null)
1465     {
1466     static $_dir_sep = null;
1467     static $_dir_sep_enc = null;
1468    
1469     if(!isset($_dir_sep)) {
1470     $_dir_sep_enc = urlencode(DIR_SEP);
1471     if($this->use_sub_dirs) {
1472     $_dir_sep = DIR_SEP;
1473     } else {
1474     $_dir_sep = '^';
1475     }
1476     }
1477    
1478     if(@is_dir($auto_base)) {
1479     $res = $auto_base . DIR_SEP;
1480     } else {
1481     // auto_base not found, try include_path
1482     $this->_get_include_path($auto_base,$_include_path);
1483     $res = $_include_path . DIR_SEP;
1484     }
1485    
1486     if(isset($auto_id)) {
1487     // make auto_id safe for directory names
1488     $auto_id = str_replace('%7C','|',(urlencode($auto_id)));
1489     // split into separate directories
1490     $auto_id = str_replace('|', $_dir_sep, $auto_id);
1491     $res .= $auto_id . $_dir_sep;
1492     }
1493    
1494     if(isset($auto_source)) {
1495     // make source name safe for filename
1496     if($this->use_sub_dirs) {
1497     $_filename = urlencode(basename($auto_source));
1498     $_crc32 = crc32($auto_source) . $_dir_sep;
1499     // prepend %% to avoid name conflicts with
1500     // with $auto_id names
1501     $_crc32 = '%%' . substr($_crc32,0,3) . $_dir_sep . '%%' . $_crc32;
1502     $res .= $_crc32 . $_filename . '.php';
1503     } else {
1504     $res .= str_replace($_dir_sep_enc,'^',urlencode($auto_source));
1505     }
1506     }
1507    
1508     return $res;
1509     }
1510    
1511     /*======================================================================*\
1512     Function: _rm_auto
1513     Purpose: delete an automagically created file by name and id
1514     \*======================================================================*/
1515     function _rm_auto($auto_base, $auto_source = null, $auto_id = null, $exp_time = null)
1516     {
1517     if (!is_dir($auto_base))
1518     return false;
1519    
1520     if(!isset($auto_id) && !isset($auto_source)) {
1521     $res = $this->_rmdir($auto_base, 0, $exp_time);
1522     } else {
1523     $tname = $this->_get_auto_filename($auto_base, $auto_source, $auto_id);
1524    
1525     if(isset($auto_source)) {
1526     $res = @unlink($tname);
1527     } elseif ($this->use_sub_dirs) {
1528     $res = $this->_rmdir($tname, 1, $exp_time);
1529     } else {
1530     // remove matching file names
1531     $handle = opendir($auto_base);
1532     while ($filename = readdir($handle)) {
1533     if($filename == '.' || $filename == '..') {
1534     continue;
1535     } elseif (substr($auto_base . DIR_SEP . $filename,0,strlen($tname)) == $tname) {
1536     $this->_unlink($auto_base . DIR_SEP . $filename, $exp_time);
1537     }
1538     }
1539     }
1540     }
1541    
1542     return $res;
1543     }
1544    
1545     /*======================================================================*\
1546     Function: _rmdir
1547     Purpose: delete a dir recursively (level=0 -> keep root)
1548     WARNING: no security whatsoever!!
1549     \*======================================================================*/
1550     function _rmdir($dirname, $level = 1, $exp_time = null)
1551     {
1552    
1553     if($handle = @opendir($dirname)) {
1554    
1555     while ($entry = readdir($handle)) {
1556     if ($entry != '.' && $entry != '..') {
1557     if (is_dir($dirname . DIR_SEP . $entry)) {
1558     $this->_rmdir($dirname . DIR_SEP . $entry, $level + 1, $exp_time);
1559     }
1560     else {
1561     $this->_unlink($dirname . DIR_SEP . $entry, $exp_time);
1562     }
1563     }
1564     }
1565    
1566     closedir($handle);
1567    
1568     if ($level)
1569     @rmdir($dirname);
1570    
1571     return true;
1572    
1573     } else {
1574     return false;
1575     }
1576     }
1577    
1578     /*======================================================================*\
1579     Function: _unlink
1580     Purpose: unlink a file, possibly using expiration time
1581     \*======================================================================*/
1582     function _unlink($resource, $exp_time = null)
1583     {
1584     if(isset($exp_time)) {
1585     if(time() - filemtime($resource) >= $exp_time) {
1586     unlink($resource);
1587     }
1588     } else {
1589     unlink($resource);
1590     }
1591     }
1592    
1593     /*======================================================================*\
1594     Function: _create_dir_structure
1595     Purpose: create full directory structure
1596     \*======================================================================*/
1597     function _create_dir_structure($dir)
1598     {
1599     if (!@file_exists($dir)) {
1600     $dir_parts = preg_split('!\\'.DIR_SEP.'+!', $dir, -1, PREG_SPLIT_NO_EMPTY);
1601     $new_dir = ($dir{0} == DIR_SEP) ? DIR_SEP : '';
1602     foreach ($dir_parts as $dir_part) {
1603     $new_dir .= $dir_part;
1604     if (!file_exists($new_dir) && !mkdir($new_dir, 0771)) {
1605     $this->trigger_error("problem creating directory \"$dir\"");
1606     return false;
1607     }
1608     $new_dir .= DIR_SEP;
1609     }
1610     }
1611     }
1612    
1613     /*======================================================================*\
1614     Function: _write_cache_file
1615     Purpose: Prepend the cache information to the cache file
1616     and write it
1617     \*======================================================================*/
1618     function _write_cache_file($tpl_file, $cache_id, $compile_id, $results)
1619     {
1620     // put timestamp in cache header
1621     $this->_cache_info['timestamp'] = time();
1622     if ($this->cache_lifetime > -1){
1623     // expiration set
1624     $this->_cache_info['expires'] = $this->_cache_info['timestamp'] + $this->cache_lifetime;
1625     } else {
1626     // cache will never expire
1627     $this->_cache_info['expires'] = -1;
1628     }
1629    
1630     // prepend the cache header info into cache file
1631     $results = serialize($this->_cache_info)."\n".$results;
1632    
1633     if (!empty($this->cache_handler_func)) {
1634     // use cache_handler function
1635     $funcname = $this->cache_handler_func;
1636     return $funcname('write', $this, $results, $tpl_file, $cache_id, $compile_id);
1637     } else {
1638     // use local cache file
1639     if (isset($cache_id))
1640     $auto_id = (isset($compile_id)) ? $cache_id . '|' . $compile_id : $cache_id;
1641     elseif(isset($compile_id))
1642     $auto_id = $compile_id;
1643     else
1644     $auto_id = null;
1645    
1646     $cache_file = $this->_get_auto_filename($this->cache_dir, $tpl_file, $auto_id);
1647     $this->_write_file($cache_file, $results, true);
1648     return true;
1649     }
1650     }
1651    
1652     /*======================================================================*\
1653     Function: _read_cache_file
1654     Purpose: read a cache file, determine if it needs to be
1655     regenerated or not
1656     \*======================================================================*/
1657     function _read_cache_file($tpl_file, $cache_id, $compile_id, &$results)
1658     {
1659     static $content_cache = array();
1660    
1661     if ($this->force_compile) {
1662     // force compile enabled, always regenerate
1663     return false;
1664     }
1665    
1666     if (isset($content_cache["$tpl_file,$cache_id,$compile_id"])) {
1667     list($results, $this->_cache_info) = $content_cache["$tpl_file,$cache_id,$compile_id"];
1668     return true;
1669     }
1670    
1671     if (!empty($this->cache_handler_func)) {
1672     // use cache_handler function
1673     $funcname = $this->cache_handler_func;
1674     $funcname('read', $this, $results, $tpl_file, $cache_id, $compile_id);
1675     } else {
1676     // use local cache file
1677     if (isset($cache_id))
1678     $auto_id = (isset($compile_id)) ? $cache_id . '|' . $compile_id : $cache_id;
1679     elseif(isset($compile_id))
1680     $auto_id = $compile_id;
1681     else
1682     $auto_id = null;
1683    
1684     $cache_file = $this->_get_auto_filename($this->cache_dir, $tpl_file, $auto_id);
1685     $results = $this->_read_file($cache_file);
1686     }
1687    
1688     if (empty($results)) {
1689     // nothing to parse (error?), regenerate cache
1690     return false;
1691     }
1692    
1693     $cache_split = explode("\n", $results, 2);
1694     $cache_header = $cache_split[0];
1695    
1696     $this->_cache_info = unserialize($cache_header);
1697    
1698     if ($this->caching == 2 && isset ($this->_cache_info['expires'])){
1699     // caching by expiration time
1700     if ($this->_cache_info['expires'] > -1 && (time() > $this->_cache_info['expires'])) {
1701     // cache expired, regenerate
1702     return false;
1703     }
1704     } else {
1705     // caching by lifetime
1706     if ($this->cache_lifetime > -1 && (time() - $this->_cache_info['timestamp'] > $this->cache_lifetime)) {
1707     // cache expired, regenerate
1708     return false;
1709     }
1710     }
1711    
1712     if ($this->compile_check) {
1713     foreach ($this->_cache_info['template'] as $template_dep) {
1714     $this->_fetch_template_info($template_dep, $template_source, $template_timestamp, false);
1715     if ($this->_cache_info['timestamp'] < $template_timestamp) {
1716     // template file has changed, regenerate cache
1717     return false;
1718     }
1719     }
1720    
1721     if (isset($this->_cache_info['config'])) {
1722     foreach ($this->_cache_info['config'] as $config_dep) {
1723     if ($this->_cache_info['timestamp'] < filemtime($this->config_dir.DIR_SEP.$config_dep)) {
1724     // config file has changed, regenerate cache
1725     return false;
1726     }
1727     }
1728     }
1729     }
1730    
1731     $results = $cache_split[1];
1732     $content_cache["$tpl_file,$cache_id,$compile_id"] = array($results, $this->_cache_info);
1733    
1734     return true;
1735     }
1736    
1737     /*======================================================================*\
1738     Function: _get_plugin_filepath
1739     Purpose: get filepath of requested plugin
1740     \*======================================================================*/
1741     function _get_plugin_filepath($type, $name)
1742     {
1743     $_plugin_filename = "$type.$name.php";
1744    
1745     foreach ((array)$this->plugins_dir as $_plugin_dir) {
1746    
1747     $_plugin_filepath = $_plugin_dir . DIR_SEP . $_plugin_filename;
1748    
1749     // see if path is relative
1750     if (!preg_match("/^([\/\\\\]|[a-zA-Z]:[\/\\\\])/", $_plugin_dir)) {
1751     $_relative_paths[] = $_plugin_dir;
1752     // relative path, see if it is in the SMARTY_DIR
1753     if (@is_readable(SMARTY_DIR . $_plugin_filepath)) {
1754     return SMARTY_DIR . $_plugin_filepath;
1755     }
1756     }
1757     // try relative to cwd (or absolute)
1758     if (@is_readable($_plugin_filepath)) {
1759     return $_plugin_filepath;
1760     }
1761     }
1762    
1763     // still not found, try PHP include_path
1764     if(isset($_relative_paths)) {
1765     foreach ((array)$_relative_paths as $_plugin_dir) {
1766    
1767     $_plugin_filepath = $_plugin_dir . DIR_SEP . $_plugin_filename;
1768    
1769     if ($this->_get_include_path($_plugin_filepath, $_include_filepath)) {
1770     return $_include_filepath;
1771     }
1772     }
1773     }
1774    
1775    
1776     return false;
1777     }
1778    
1779     /*======================================================================*\
1780     Function: _load_plugins
1781     Purpose: Load requested plugins
1782     \*======================================================================*/
1783     function _load_plugins($plugins)
1784     {
1785    
1786     foreach ($plugins as $plugin_info) {
1787     list($type, $name, $tpl_file, $tpl_line, $delayed_loading) = $plugin_info;
1788     $plugin = &$this->_plugins[$type][$name];
1789    
1790     /*
1791     * We do not load plugin more than once for each instance of Smarty.
1792     * The following code checks for that. The plugin can also be
1793     * registered dynamically at runtime, in which case template file
1794     * and line number will be unknown, so we fill them in.
1795     *
1796     * The final element of the info array is a flag that indicates
1797     * whether the dynamically registered plugin function has been
1798     * checked for existence yet or not.
1799     */
1800     if (isset($plugin)) {
1801     if (!$plugin[3]) {
1802     if (!function_exists($plugin[0])) {
1803     $this->_trigger_plugin_error("$type '$name' is not implemented", $tpl_file, $tpl_line);
1804     } else {
1805     $plugin[1] = $tpl_file;
1806     $plugin[2] = $tpl_line;
1807     $plugin[3] = true;
1808     }
1809     }
1810     continue;
1811     } else if ($type == 'insert') {
1812     /*
1813     * For backwards compatibility, we check for insert functions in
1814     * the symbol table before trying to load them as a plugin.
1815     */
1816     $plugin_func = 'insert_' . $name;
1817     if (function_exists($plugin_func)) {
1818     $plugin = array($plugin_func, $tpl_file, $tpl_line, true);
1819     continue;
1820     }
1821     }
1822    
1823     $plugin_file = $this->_get_plugin_filepath($type, $name);
1824    
1825     if ($found = ($plugin_file != false)) {
1826     $message = "could not load plugin file '$type.$name.php'\n";
1827     }
1828    
1829     /*
1830     * If plugin file is found, it -must- provide the properly named
1831     * plugin function. In case it doesn't, simply output the error and
1832     * do not fall back on any other method.
1833     */
1834     if ($found) {
1835     include_once $plugin_file;
1836    
1837     $plugin_func = 'smarty_' . $type . '_' . $name;
1838     if (!function_exists($plugin_func)) {
1839     $this->_trigger_plugin_error("plugin function $plugin_func() not found in $plugin_file", $tpl_file, $tpl_line);
1840     continue;
1841     }
1842     }
1843     /*
1844     * In case of insert plugins, their code may be loaded later via
1845     * 'script' attribute.
1846     */
1847     else if ($type == 'insert' && $delayed_loading) {
1848     $plugin_func = 'smarty_' . $type . '_' . $name;
1849     $found = true;
1850     }
1851    
1852     /*
1853     * Plugin specific processing and error checking.
1854     */
1855     if (!$found) {
1856     if ($type == 'modifier') {
1857     /*
1858     * In case modifier falls back on using PHP functions
1859     * directly, we only allow those specified in the security
1860     * context.
1861     */
1862     if ($this->security && !in_array($name, $this->security_settings['MODIFIER_FUNCS'])) {
1863     $message = "(secure mode) modifier '$name' is not allowed";
1864     } else {
1865     if (!function_exists($name)) {
1866     $message = "modifier '$name' is not implemented";
1867     } else {
1868     $plugin_func = $name;
1869     $found = true;
1870     }
1871     }
1872     } else if ($type == 'function') {
1873     /*
1874     * This is a catch-all situation.
1875     */
1876     $message = "unknown tag - '$name'";
1877     }
1878     }
1879    
1880     if ($found) {
1881     $this->_plugins[$type][$name] = array($plugin_func, $tpl_file, $tpl_line, true);
1882     } else {
1883     // output error
1884     $this->_trigger_plugin_error($message, $tpl_file, $tpl_line);
1885     }
1886     }
1887     }
1888    
1889     /*======================================================================*\
1890     Function: _load_resource_plugin
1891     Purpose:
1892     \*======================================================================*/
1893     function _load_resource_plugin($type)
1894     {
1895     /*
1896     * Resource plugins are not quite like the other ones, so they are
1897     * handled differently. The first element of plugin info is the array of
1898     * functions provided by the plugin, the second one indicates whether
1899     * all of them exist or not.
1900     */
1901    
1902     $plugin = &$this->_plugins['resource'][$type];
1903     if (isset($plugin)) {
1904     if (!$plugin[1] && count($plugin[0])) {
1905     $plugin[1] = true;
1906     foreach ($plugin[0] as $plugin_func) {
1907     if (!function_exists($plugin_func)) {
1908     $plugin[1] = false;
1909     break;
1910     }
1911     }
1912     }
1913    
1914     if (!$plugin[1]) {
1915     $this->_trigger_plugin_error("resource '$type' is not implemented");
1916     }
1917    
1918     return;
1919     }
1920    
1921     $plugin_file = $this->_get_plugin_filepath('resource', $type);
1922     $found = ($plugin_file != false);
1923    
1924     if ($found) { /*
1925     * If the plugin file is found, it -must- provide the properly named
1926     * plugin functions.
1927     */
1928     include_once $plugin_file;
1929    
1930     /*
1931     * Locate functions that we require the plugin to provide.
1932     */
1933     $resource_ops = array('source', 'timestamp', 'secure', 'trusted');
1934     $resource_funcs = array();
1935     foreach ($resource_ops as $op) {
1936     $plugin_func = 'smarty_resource_' . $type . '_' . $op;
1937     if (!function_exists($plugin_func)) {
1938     $this->_trigger_plugin_error("plugin function $plugin_func() not found in $plugin_file");
1939     return;
1940     } else {
1941     $resource_funcs[] = $plugin_func;
1942     }
1943     }
1944    
1945     $this->_plugins['resource'][$type] = array($resource_funcs, true);
1946     }
1947     }
1948    
1949     /*======================================================================*\
1950     Function: _autoload_filters()
1951     Purpose: automatically load a set of filters
1952     \*======================================================================*/
1953     function _autoload_filters()
1954     {
1955     foreach ($this->autoload_filters as $filter_type => $filters) {
1956     foreach ($filters as $filter) {
1957     $this->load_filter($filter_type, $filter);
1958     }
1959     }
1960     }
1961    
1962     /*======================================================================*\
1963     Function: quote_replace
1964     Purpose: Quote subpattern references
1965     \*======================================================================*/
1966     function quote_replace($string)
1967     {
1968     return preg_replace('![\\$]\d!', '\\\\\\0', $string);
1969     }
1970    
1971    
1972     /*======================================================================*\
1973     Function: _trigger_plugin_error
1974     Purpose: trigger Smarty plugin error
1975     \*======================================================================*/
1976     function _trigger_plugin_error($error_msg, $tpl_file = null, $tpl_line = null, $error_type = E_USER_ERROR)
1977     {
1978     if (isset($tpl_line) && isset($tpl_file)) {
1979     trigger_error("Smarty plugin error: [in " . $tpl_file . " line " .
1980     $tpl_line . "]: $error_msg", $error_type);
1981     } else {
1982     trigger_error("Smarty plugin error: $error_msg", $error_type);
1983     }
1984     }
1985    
1986     /*======================================================================*\
1987     Function: _get_microtime
1988     Purpose: Get seconds and microseconds
1989     \*======================================================================*/
1990     function _get_microtime()
1991     {
1992     $mtime = microtime();
1993     $mtime = explode(" ", $mtime);
1994     $mtime = (double)($mtime[1]) + (double)($mtime[0]);
1995     return ($mtime);
1996     }
1997    
1998     /*======================================================================*\
1999     Function: _get_include_path
2000     Purpose: Get path to file from include_path
2001     \*======================================================================*/
2002     function _get_include_path($file_path,&$new_file_path)
2003     {
2004     static $_path_array = null;
2005    
2006     if(!isset($_path_array)) {
2007     $_ini_include_path = ini_get('include_path');
2008    
2009     if(strstr($_ini_include_path,';')) {
2010     // windows pathnames
2011     $_path_array = explode(';',$_ini_include_path);
2012     } else {
2013     $_path_array = explode(':',$_ini_include_path);
2014     }
2015     }
2016     foreach ($_path_array as $_include_path) {
2017     if (@file_exists($_include_path . DIR_SEP . $file_path)) {
2018     $new_file_path = $_include_path . DIR_SEP . $file_path;
2019     return true;
2020     }
2021     }
2022     return false;
2023     }
2024    
2025     }
2026    
2027     /* vim: set expandtab: */
2028    
2029     ?>

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