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Updated smarty
[gosa.git] / gosa-core / include / smarty / sysplugins / smarty_internal_resource_extends.php
1 <?php
3 /**
4  * Smarty Internal Plugin Resource Extends
5  * 
6  * Implements the file system as resource for Smarty which does extend a chain of template files templates
7  * 
8  * @package Smarty
9  * @subpackage TemplateResources
10  * @author Uwe Tews 
11  */
12 /**
13  * Smarty Internal Plugin Resource Extends
14  */
15 class Smarty_Internal_Resource_Extends {
16     public function __construct($smarty)
17     {
18         $this->smarty = $smarty;
19         $this->_rdl = preg_quote($smarty->right_delimiter);
20         $this->_ldl = preg_quote($smarty->left_delimiter);
21     } 
22     // classes used for compiling Smarty templates from file resource
23     public $compiler_class = 'Smarty_Internal_SmartyTemplateCompiler';
24     public $template_lexer_class = 'Smarty_Internal_Templatelexer';
25     public $template_parser_class = 'Smarty_Internal_Templateparser'; 
26     // properties
27     public $usesCompiler = true;
28     public $isEvaluated = false;
29     public $allFilepaths = array();
31     /**
32      * Return flag if template source is existing
33      * 
34      * @param object $_template template object
35      * @return boolean result
36      */
37     public function isExisting($_template)
38     {
39         if ($_template->getTemplateFilepath() === false) {
40             return false;
41         } else {
42             return true;
43         } 
44     } 
45     /**
46      * Get filepath to template source
47      * 
48      * @param object $_template template object
49      * @return string filepath to template source file
50      */
51     public function getTemplateFilepath($_template)
52     {
53         $sha1String = '';
54         $_files = explode('|', $_template->resource_name);
55         foreach ($_files as $_file) {
56             $_filepath = $_template->buildTemplateFilepath ($_file);
57             if ($_filepath !== false) {
58                 if ($_template->security) {
59                     $_template->smarty->security_handler->isTrustedResourceDir($_filepath);
60                 } 
61             } 
62             $sha1String .= $_filepath;
63             $this->allFilepaths[] = $_filepath;
64         } 
65         $_template->templateUid = sha1($sha1String);
66         return $_filepath;
67     } 
69     /**
70      * Get timestamp to template source
71      * 
72      * @param object $_template template object
73      * @return integer timestamp of template source file
74      */
75     public function getTemplateTimestamp($_template)
76     {
77         return filemtime($_template->getTemplateFilepath());
78     } 
80     /**
81      * Read template source from file
82      * 
83      * @param object $_template template object
84      * @return string content of template source file
85      */
86     public function getTemplateSource($_template)
87     {
88         $this->template = $_template;
89         $_files = array_reverse($this->allFilepaths);
90         foreach ($_files as $_filepath) {
91             // read template file
92             if ($_filepath === false) {
93                 throw new Exception("Unable to load template 'file : {$_file}'");
94             } 
95             if ($_filepath != $_files[0]) {
96                 $_template->properties['file_dependency'][sha1($_filepath)] = array($_filepath, filemtime($_filepath));
97             } 
98             $_template->template_filepath = $_filepath;
99             $_content = file_get_contents($_filepath);
100             if ($_filepath != $_files[count($_files)-1]) {
101                 if (preg_match_all("!({$this->_ldl}block(.+?){$this->_rdl})!", $_content, $_open) !=
102                         preg_match_all("!({$this->_ldl}/block(.*?){$this->_rdl})!", $_content, $_close)) {
103                     $this->smarty->trigger_error("unmatched {block} {/block} pairs in file '$_filepath'");
104                 } 
105                 preg_match_all("!{$this->_ldl}block(.+?){$this->_rdl}|{$this->_ldl}/block.*{$this->_rdl}!", $_content, $_result, PREG_OFFSET_CAPTURE);
106                 $_result_count = count($_result[0]);
107                 $_start = 0;
108                 while ($_start < $_result_count) {
109                     $_end = 0;
110                     $_level = 1;
111                     while ($_level != 0) {
112                         $_end++;
113                         if (!strpos($_result[0][$_start + $_end][0], '/')) {
114                             $_level++;
115                         } else {
116                             $_level--;
117                         } 
118                     } 
119                     $_block_content = str_replace($this->smarty->left_delimiter . '$smarty.block.parent' . $this->smarty->right_delimiter, '%%%%SMARTY_PARENT%%%%',
120                         substr($_content, $_result[0][$_start][1] + strlen($_result[0][$_start][0]), $_result[0][$_start + $_end][1] - $_result[0][$_start][1] - + strlen($_result[0][$_start][0])));
121                     $this->saveBlockData($_block_content, $_result[0][$_start][0], $_filepath);
122                     $_start = $_start + $_end + 1;
123                 } 
124             } else {
125                 $_template->template_source = $_content;
126                 return true;
127             } 
128         } 
129         // $_template->template_filepath = $saved_filepath;
130     } 
131     protected function saveBlockData($block_content, $block_tag, $_filepath)
132     {
133         if (0 == preg_match("!(.?)(name=)(.*?)(?=(\s|{$this->_rdl}))!", $block_tag, $_match)) {
134             $this->smarty->trigger_error("'{$block_tag}' missing name attribute in file '$_filepath'");
135         } else {
136             $_name = trim($_match[3], '\'"');
137            // replace {$smarty.block.child} 
138             if (strpos($block_content, $this->smarty->left_delimiter . '$smarty.block.child' . $this->smarty->right_delimiter) !== false) {
139                 if (isset($this->smarty->block_data[$_name])) {
140                     $block_content = str_replace($this->smarty->left_delimiter . '$smarty.block.child' . $this->smarty->right_delimiter,
141                         $this->smarty->block_data[$_name]['source'], $block_content);
142                     unset($this->smarty->block_data[$_name]);
143                 } else {
144                     $block_content = str_replace($this->smarty->left_delimiter . '$smarty.block.child' . $this->smarty->right_delimiter,
145                         '', $block_content);
146                 } 
147             } 
148             if (isset($this->smarty->block_data[$_name])) {
149                 if (strpos($this->smarty->block_data[$_name]['source'], '%%%%SMARTY_PARENT%%%%') !== false) {
150                     $this->smarty->block_data[$_name]['source'] =
151                     str_replace('%%%%SMARTY_PARENT%%%%', $block_content, $this->smarty->block_data[$_name]['source']);
152                 } elseif ($this->smarty->block_data[$_name]['mode'] == 'prepend') {
153                     $this->smarty->block_data[$_name]['source'] .= $block_content;
154                 } elseif ($this->smarty->block_data[$_name]['mode'] == 'append') {
155                     $this->smarty->block_data[$_name]['source'] = $block_content . $this->smarty->block_data[$_name]['source'];
156                 } 
157             } else {
158                 $this->smarty->block_data[$_name]['source'] = $block_content;
159             } 
160             if (preg_match('/(.?)(append)(.*)/', $block_tag, $_match) != 0) {
161                 $this->smarty->block_data[$_name]['mode'] = 'append';
162             } elseif (preg_match('/(.?)(prepend)(.*)/', $block_tag, $_match) != 0) {
163                 $this->smarty->block_data[$_name]['mode'] = 'prepend';
164             } else {
165                 $this->smarty->block_data[$_name]['mode'] = 'replace';
166             } 
167             $this->smarty->block_data[$_name]['file'] = $_filepath;
168         } 
169     } 
171     /**
172      * Get filepath to compiled template
173      * 
174      * @param object $_template template object
175      * @return string return path to compiled template
176      */
177     public function getCompiledFilepath($_template)
178     {
179         $_compile_id = isset($_template->compile_id) ? preg_replace('![^\w\|]+!', '_', $_template->compile_id) : null;
180         $_files = explode('|', $_template->resource_name); 
181         // calculate Uid if not already done
182         if ($_template->templateUid == '') {
183             $_template->getTemplateFilepath();
184         } 
185         $_filepath = $_template->templateUid; 
186         // if use_sub_dirs, break file into directories
187         if ($_template->smarty->use_sub_dirs) {
188             $_filepath = substr($_filepath, 0, 2) . DS
189              . substr($_filepath, 2, 2) . DS
190              . substr($_filepath, 4, 2) . DS
191              . $_filepath;
192         } 
193         $_compile_dir_sep = $_template->smarty->use_sub_dirs ? DS : '^';
194         if (isset($_compile_id)) {
195             $_filepath = $_compile_id . $_compile_dir_sep . $_filepath;
196         } 
197         if ($_template->caching) {
198             $_cache = '.cache';
199         } else {
200             $_cache = '';
201         } 
202         $_compile_dir = $_template->smarty->compile_dir;
203         if (substr($_compile_dir, -1) != DS) {
204             $_compile_dir .= DS;
205         } 
206         return $_compile_dir . $_filepath . '.' . $_template->resource_type . '.' . basename($_files[count($_files)-1]) . $_cache . '.php';
207     } 
208
210 ?>