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Редакция | Автор | № строки | Строка |
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304 | alex-w | 1 | <?php |
2 | |||
3 | /** |
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4 | * Smarty Internal Plugin CacheResource File |
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5 | * |
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6 | * Implements the file system as resource for the HTML cache |
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7 | * Version ussing nocache inserts |
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8 | * |
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9 | * @package Smarty |
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10 | * @subpackage Cacher |
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11 | * @author Uwe Tews |
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12 | */ |
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13 | |||
14 | /** |
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15 | * This class does contain all necessary methods for the HTML cache on file system |
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16 | */ |
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17 | class Smarty_Internal_CacheResource_File { |
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18 | function __construct($smarty) |
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19 | { |
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20 | $this->smarty = $smarty; |
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21 | } |
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22 | /** |
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23 | * Returns the filepath of the cached template output |
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24 | * |
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25 | * @param object $template current template |
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26 | * @return string the cache filepath |
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27 | */ |
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28 | public function getCachedFilepath($template) |
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29 | { |
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30 | return $this->buildCachedFilepath ($template->resource_name, $template->cache_id, $template->compile_id); |
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31 | } |
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32 | |||
33 | /** |
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34 | * Returns the timpestamp of the cached template output |
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35 | * |
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36 | * @param object $template current template |
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37 | * @return integer |booelan the template timestamp or false if the file does not exist |
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38 | */ |
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39 | public function getCachedTimestamp($template) |
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40 | { |
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41 | return ($template->getCachedFilepath() && file_exists($template->getCachedFilepath())) ? filemtime($template->getCachedFilepath()) : false ; |
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42 | } |
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43 | |||
44 | /** |
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45 | * Returns the cached template output |
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46 | * |
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47 | * @param object $template current template |
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48 | * @return string |booelan the template content or false if the file does not exist |
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49 | */ |
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50 | public function getCachedContents($template) |
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51 | { |
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52 | ob_start(); |
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53 | $_smarty_tpl = $template; |
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54 | include $template->getCachedFilepath(); |
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55 | return ob_get_clean(); |
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56 | } |
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57 | |||
58 | /** |
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59 | * Writes the rendered template output to cache file |
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60 | * |
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61 | * @param object $template current template |
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62 | * @return boolean status |
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63 | */ |
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64 | public function writeCachedContent($template, $content) |
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65 | { |
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66 | if (!$template->isEvaluated()) { |
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67 | if (!is_object($this->smarty->write_file_object)) { |
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68 | require_once(SMARTY_SYSPLUGINS_DIR . 'internal.write_file.php'); |
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69 | // $this->smarty->loadPlugin("Smarty_Internal_Write_File"); |
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70 | $this->smarty->write_file_object = new Smarty_Internal_Write_File; |
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71 | } |
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72 | return $this->smarty->write_file_object->writeFile($template->getCachedFilepath(), $content); |
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73 | } else { |
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74 | return false; |
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75 | } |
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76 | } |
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77 | |||
78 | /** |
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79 | * Empty cache folder |
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80 | * |
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81 | * @param integer $exp_time expiration time |
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82 | * @return integer number of cache files deleted |
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83 | */ |
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84 | public function clearAll($exp_time = null) |
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85 | { |
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86 | return $this->clear(null, null, null, $exp_time); |
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87 | } |
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88 | /** |
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89 | * Empty cache for a specific template |
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90 | * |
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91 | * @param string $resource_name template name |
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92 | * @param string $cache_id cache id |
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93 | * @param string $compile_id compile id |
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94 | * @param integer $exp_time expiration time |
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95 | * @return integer number of cache files deleted |
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96 | */ |
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97 | public function clear($resource_name, $cache_id, $compile_id, $exp_time) |
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98 | { |
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99 | $_dir_sep = $this->smarty->use_sub_dirs ? DS : '^'; |
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100 | if (isset($resource_name)) { |
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101 | $_resource_part = (string)abs(crc32($resource_name)) . '.' . $resource_name . $this->smarty->php_ext; |
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102 | } else { |
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103 | $_resource_part = null; |
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104 | } |
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105 | $_dir = $this->smarty->cache_dir; |
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106 | if (strpos('/\\', substr($_dir, -1)) === false) { |
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107 | $_dir .= DS; |
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108 | } |
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109 | if ($this->smarty->use_sub_dirs && isset($cache_id)) { |
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110 | $_dir .= str_replace('|', $_dir_sep, $cache_id) . $_dir_sep; |
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111 | } |
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112 | $_compile_pos = $this->smarty->use_sub_dirs ? 5 : 2; |
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113 | $_count = 0; |
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114 | $_cacheDirs = new RecursiveDirectoryIterator($_dir); |
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115 | $_cache = new RecursiveIteratorIterator($_cacheDirs, RecursiveIteratorIterator::CHILD_FIRST); |
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116 | foreach ($_cache as $_file) { |
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117 | if (strpos($_file, '.svn') !== false) continue; |
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118 | if ($_file->isDir()) { |
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119 | if (!$_cache->isDot()) { |
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120 | // delete folder if empty |
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121 | @rmdir($_file->getPathname()); |
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122 | } |
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123 | } else { |
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124 | $_parts = explode($_dir_sep, $_file); |
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125 | $_parts_count = count($_parts); |
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126 | $_parts_compile_pos = $_parts_count - $_compile_pos; |
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127 | if ($_parts_compile_pos < 0) { |
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128 | $_parts_compile_pos = 0; |
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129 | } |
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130 | if ((substr_compare((string)$_file, $_dir, 0, strlen($_dir)) == 0 && |
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131 | (!isset($resource_name) || $_parts[$_parts_count-1] == $_resource_part) && |
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132 | (!isset($compile_id) || $_parts[$_parts_compile_pos] == $compile_id)) || |
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133 | (isset($resource_name) && (string)$_file == $_dir . $_resource_part)) { |
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134 | if (isset($exp_time)) { |
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135 | if (time() - @filemtime($_file) >= $exp_time) { |
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136 | $_count += unlink((string) $_file) ? 1 : 0; |
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137 | } |
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138 | } else { |
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139 | $_count += unlink((string) $_file) ? 1 : 0; |
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140 | } |
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141 | } |
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142 | } |
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143 | } |
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144 | return $_count; |
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145 | } |
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146 | /** |
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147 | * Get system filepath to cached file |
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148 | * |
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149 | * @param string $resource_name template name |
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150 | * @param string $cache_id cache id |
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151 | * @param string $compile_id compile id |
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152 | * @return string filepath of cache file |
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153 | */ |
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154 | private function buildCachedFilepath ($resource_name, $cache_id, $compile_id) |
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155 | { |
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156 | $_files = explode('|', $resource_name); |
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157 | $_filepath = (string)abs(crc32($resource_name)); |
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158 | // if use_sub_dirs, break file into directories |
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159 | if ($this->smarty->use_sub_dirs) { |
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160 | $_filepath = substr($_filepath, 0, 2) . DS |
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161 | . substr($_filepath, 2, 2) . DS |
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162 | . substr($_filepath, 4, 2) . DS |
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163 | . $_filepath; |
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164 | } |
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165 | $_compile_dir_sep = $this->smarty->use_sub_dirs ? DS : '^'; |
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166 | if (isset($cache_id)) { |
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167 | $_cache_id = str_replace('|', $_compile_dir_sep, $cache_id) . $_compile_dir_sep; |
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168 | } else { |
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169 | $_cache_id = ''; |
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170 | } |
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171 | if (isset($compile_id)) { |
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172 | $_compile_id = $compile_id . $_compile_dir_sep; |
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173 | } else { |
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174 | $_compile_id = ''; |
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175 | } |
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176 | $_cache_dir = $this->smarty->cache_dir; |
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177 | if (strpos('/\\', substr($_cache_dir, -1)) === false) { |
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178 | $_cache_dir .= DS; |
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179 | } |
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180 | |||
181 | return $_cache_dir . $_cache_id . $_compile_id . $_filepath . '.' . basename($_files[count($_files)-1]) . $this->smarty->php_ext; |
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182 | } |
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183 | } |
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184 | |||
185 | ?> |