1 | <?php |
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2 | /*************************************************************************** |
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3 | * Expresso Livre * |
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4 | * http://www.expressolivre.org * |
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5 | * -------------------------------------------- * |
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6 | * This program is free software; you can redistribute it and/or modify it * |
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7 | * under the terms of the GNU General Public License as published by the * |
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8 | * Free Software Foundation; either version 2 of the License, or (at your * |
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9 | * option) any later version. * |
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10 | \**************************************************************************/ |
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11 | |
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12 | class Controller |
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13 | { |
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14 | const __CONTROLLER_SECURITY__ = 'controller-security'; |
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15 | const __CONTROLLER_CONTENTES__ = 'controller-contentes'; |
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16 | const __CONTROLLER_SECTIONS__ = 'controller-sections'; |
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17 | |
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18 | const __STRING_ACCESS__ = 'string-access'; |
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19 | const __STRING_DELIMITER__ = 'string-delimiter'; |
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20 | |
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21 | const __CONTROLLER_CONTENTES_ITEM__ = 'item'; |
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22 | const __CONTROLLER_CONTENTES_ITEM_PARAM__ = 'param'; |
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23 | const __CONTROLLER_CONTENTES_ITEM_SECTION__ = 'section'; |
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24 | |
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25 | const __CONTROLLER_SECTIONS_ITEM__ = 'item'; |
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26 | |
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27 | private $fatalError = false; |
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28 | |
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29 | public function __construct() |
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30 | { |
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31 | try |
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32 | { |
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33 | $controler_xml = dirname(__FILE__) . '/controller.xml'; |
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34 | if ( !file_exists($controler_xml) ) |
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35 | throw new Exception(__CLASS__ . ' [ ERROR ] :: the configuration file does not exist'); |
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36 | |
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37 | $this->dom = new DOMDocument; |
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38 | $this->dom->preserveWhiteSpace = FALSE; |
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39 | $this->dom->load($controler_xml); |
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40 | |
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41 | unset($controler_xml); |
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42 | |
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43 | $this->controller_security = $this->dom->getElementsByTagName(self::__CONTROLLER_SECURITY__); |
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44 | if ( $this->controller_security->length === (int)0 ) |
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45 | throw new Exception(__CLASS__ . ' [ ERROR #0 ] :: the tag "' . self::__CONTROLLER_SECURITY__ . '" does not exist'); |
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46 | if ( $this->controller_security->length !== (int)1 ) |
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47 | throw new Exception(__CLASS__ . ' [ ERROR #1 ] :: exists more of a tag "' . self::__CONTROLLER_SECURITY__ . '"'); |
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48 | |
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49 | $this->controller_contentes = $this->dom->getElementsByTagName(self::__CONTROLLER_CONTENTES__); |
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50 | if ( $this->controller_contentes->length === (int)0 ) |
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51 | throw new Exception(__CLASS__ . ' [ ERROR #2 ] :: the tag "' . self::__CONTROLLER_CONTENTES__ . '" does not exist'); |
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52 | if ( $this->controller_contentes->length !== (int)1 ) |
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53 | throw new Exception(__CLASS__ . ' [ ERROR #3 ] :: exists more of a tag "' . self::__CONTROLLER_CONTENTES__ . '"'); |
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54 | $this->controller_contentes = $this->controller_contentes->item(0); |
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55 | |
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56 | $this->controller_sections = $this->dom->getElementsByTagName("controller-sections"); |
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57 | if ( $this->controller_sections->length === (int)0 ) |
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58 | throw new Exception(__CLASS__ . ' [ ERROR #4 ] :: the tag "' . self::__CONTROLLER_SECTIONS__ . '" does not exist'); |
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59 | if ( $this->controller_sections->length !== (int)1 ) |
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60 | throw new Exception(__CLASS__ . ' [ ERROR #5 ] :: exists more of a tag "' . self::__CONTROLLER_SECTIONS__ . '"'); |
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61 | $this->controller_sections = $this->controller_sections->item(0); |
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62 | |
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63 | $this->string_access = $this->controller_security->item(0)->getElementsByTagName(self::__STRING_ACCESS__); |
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64 | if ( $this->string_access->length === (int)0 ) |
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65 | throw new Exception(__CLASS__ . ' [ ERROR #6 ] :: the tag "' . self::__STRING_ACCESS__ . '" does not exist'); |
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66 | if ( $this->string_access->length !== (int)1 ) |
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67 | throw new Exception(__CLASS__ . ' [ ERROR #7 ] :: exists more of a tag "' . self::__STRING_ACCESS__ . '"'); |
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68 | $this->string_access = $this->string_access->item(0)->nodeValue; |
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69 | |
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70 | $this->string_delimiter = $this->controller_security->item(0)->getElementsByTagName(self::__STRING_DELIMITER__); |
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71 | ( $this->string_delimiter->length === (int)0 ) |
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72 | and die(__CLASS__ . ' [ ERROR #8 ] :: the tag "' . self::__STRING_DELIMITER__ . '" does not exist'); |
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73 | if ( $this->string_delimiter->length !== (int)1 ) |
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74 | throw new Exception(__CLASS__ . ' [ ERROR #9 ] :: exists more of a tag "' . self::__STRING_DELIMITER__ . '"'); |
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75 | $this->string_delimiter = $this->string_delimiter->item(0)->nodeValue; |
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76 | } |
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77 | catch(Exception $e) |
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78 | { |
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79 | $this->fatalError = true; |
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80 | return $e->getMessage(); |
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81 | } |
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82 | } |
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83 | |
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84 | public function __call($name, $arguments) |
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85 | { |
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86 | if ( !$this->fatalError ) |
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87 | switch ( $name ) |
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88 | { |
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89 | case 'exec' : |
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90 | return $this->_exec($arguments[0]); |
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91 | break; |
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92 | default : return "Method not avaible"; |
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93 | } |
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94 | } |
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95 | |
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96 | public function __toString() |
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97 | { |
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98 | return __CLASS__; |
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99 | } |
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100 | |
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101 | private final function _exec(array &$pRequest) |
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102 | { |
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103 | ( $pRequest[$this->string_access] ) |
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104 | or die(__CLASS__ . ' [ ERROR #10 ] :: bad string action argument'); |
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105 | |
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106 | list($section_name, $ref, $alias) = explode($this->string_delimiter, $pRequest[$this->string_access]); |
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107 | unset($pRequest[$this->string_access]); |
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108 | |
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109 | $contents_itens = $this->controller_contentes->getElementsByTagName(self::__CONTROLLER_CONTENTES_ITEM__); |
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110 | |
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111 | for ( $i = 0; $i < $contents_itens->length && $contents_itens->item($i)->getAttribute(self::__CONTROLLER_CONTENTES_ITEM_PARAM__) != $section_name; ++$i ); |
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112 | ( !($i < $contents_itens->length) ) |
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113 | and die(__CLASS__ . ' [ ERROR #11 ] :: invalid section "' . $section_name . '"'); |
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114 | |
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115 | $section_name = $contents_itens->item($i)->getAttribute(self::__CONTROLLER_CONTENTES_ITEM_SECTION__); |
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116 | |
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117 | $section = $this->controller_sections->getElementsByTagName($section_name); |
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118 | ( $section->length === (int)0 ) |
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119 | and die(__CLASS__ . ' [ ERROR #12 ] :: the tag "' . $section_name . '" does not exist'); |
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120 | ( $section->length === (int)1 ) |
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121 | or die(__CLASS__ . ' [ ERROR #13 ] :: exists more of a tag "' . $section_name . '"'); |
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122 | $section = $section->item(0); |
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123 | |
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124 | $section_itens = $section->getElementsByTagName(self::__CONTROLLER_SECTIONS_ITEM__); |
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125 | |
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126 | if ( empty($alias) && $alias !== '0' ) |
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127 | for ( $i = 0; $i < $section_itens->length && $section_itens->item($i)->getAttribute('ref') != $ref; ++$i ); |
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128 | else |
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129 | for ( $i = 0; $i < $section_itens->length && ( $section_itens->item($i)->getAttribute('ref') != $ref || $section_itens->item($i)->getAttribute('alias') !== $alias); ++$i ); |
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130 | |
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131 | ( !($i < $section_itens->length) ) |
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132 | and die(__CLASS__ . ' [ ERROR #14 ] :: invalid reference "' . $ref . '"'); |
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133 | |
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134 | $path = $section_itens->item($i)->getAttribute('path') |
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135 | or $path = $section->getAttribute('path') |
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136 | or die(__CLASS__ . ' [ ERROR #15 ] :: bad path argument'); |
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137 | |
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138 | $prefix = $section_itens->item($i)->getAttribute('prefix') |
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139 | or $prefix = $section->getAttribute('prefix'); |
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140 | |
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141 | $suffix = $section_itens->item($i)->getAttribute('suffix') |
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142 | or $suffix = $section->getAttribute('suffix') |
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143 | or die(__CLASS__ . ' [ ERROR #16 ] :: bad suffix argument'); |
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144 | |
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145 | return $this->$section_name(array("pSectionItem" => $section_itens->item($i), "pPath" => $path, "pPrefix" => $prefix, "pSuffix" => $suffix, "pRequest" => $pRequest)); |
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146 | } |
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147 | |
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148 | private final function php() |
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149 | { |
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150 | $params = func_get_args(); |
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151 | extract($params[0]); |
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152 | |
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153 | $class = $pSectionItem->getAttribute('class') |
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154 | and $method = $pSectionItem->getAttribute('method') |
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155 | or die(__CLASS__ . ' [ ERROR #17 ] :: bad class or method argument'); |
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156 | |
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157 | $file = "{$pPath}/{$pPrefix}{$class}{$pSuffix}"; |
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158 | |
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159 | file_exists($file) |
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160 | or die(__CLASS__ . ' [ ERROR #18 ] :: the file that has the class was not opened'); |
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161 | |
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162 | require_once $file; |
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163 | |
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164 | $obj = new ReflectionClass($class); |
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165 | |
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166 | if ( $pRequest['classCostructor'] ) |
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167 | { |
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168 | $obj = $obj->newInstance($pRequest['classCostructor']); |
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169 | unset($pRequest['classCostructor']); |
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170 | } |
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171 | else |
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172 | $obj = $obj->newInstance(); |
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173 | |
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174 | $method = new ReflectionMethod($class, $method); |
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175 | $result = $method->invoke($obj, $pRequest); |
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176 | |
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177 | #$obj = new $class; |
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178 | |
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179 | #if ( $pRequest ) |
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180 | # $result = $obj -> $method($pRequest); |
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181 | #else |
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182 | # $result = $obj -> $method(); |
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183 | |
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184 | return $result; |
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185 | } |
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186 | |
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187 | private final function js() |
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188 | { |
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189 | $params = func_get_args(); |
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190 | extract($params[0]); |
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191 | |
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192 | $js = $pSectionItem->getAttribute('js') |
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193 | or die(__CLASS__ . ' [ ERROR #18 ] :: bad js argument'); |
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194 | |
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195 | $file = "{$pPath}/{$pPrefix}{$js}{$pSuffix}"; |
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196 | |
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197 | file_exists($file) |
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198 | or die(__CLASS__ . ' [ ERROR #19 ] :: the file that has the class was not opened'); |
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199 | |
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200 | $debug = $pSectionItem->parentNode->getAttribute('debug'); |
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201 | if ( $debug && ($debug === 'true') ) |
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202 | return file_get_contents($file); |
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203 | |
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204 | $packed_file = "{$pPath}/.packer.{$pPrefix}{$js}{$pSuffix}"; |
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205 | |
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206 | ( |
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207 | file_exists($packed_file) |
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208 | and filemtime($packed_file) > filemtime($file) |
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209 | and $packed = file_get_contents($packed_file) |
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210 | ) |
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211 | or |
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212 | ( |
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213 | $packer = new JavaScriptPacker(file_get_contents($file), 'High ASCII', true, true) |
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214 | and $packed = $packer->pack() |
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215 | and file_put_contents($packed_file, $packed) |
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216 | ); |
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217 | |
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218 | return $packed; |
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219 | } |
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220 | } |
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221 | |
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222 | class JavaScriptPacker |
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223 | { |
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224 | const IGNORE = '$1'; |
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225 | |
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226 | private $_script = ''; |
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227 | private $_encoding = 62; |
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228 | private $_fastDecode = true; |
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229 | private $_specialChars = false; |
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230 | |
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231 | private $_parsers = array(); |
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232 | |
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233 | private $LITERAL_ENCODING = array( |
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234 | 'None' => 0, |
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235 | 'Numeric' => 10, |
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236 | 'Normal' => 62, |
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237 | 'High ASCII' => 95 |
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238 | ); |
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239 | |
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240 | public function __construct ($pScript, $pEncoding = 62, $pFastDecode = true, $pSpecialChars = false) |
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241 | { |
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242 | $this->_script = $pScript . "\n"; |
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243 | if ( array_key_exists($pEncoding, $this->LITERAL_ENCODING) ) |
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244 | $pEncoding = $this->LITERAL_ENCODING[$pEncoding]; |
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245 | |
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246 | $this->_encoding = min((int)$pEncoding, 95); |
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247 | $this->_fastDecode = $pFastDecode; |
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248 | $this->_specialChars = $pSpecialChars; |
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249 | } |
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250 | |
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251 | public function pack() |
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252 | { |
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253 | $this->_addParser('_basicCompression'); |
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254 | |
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255 | if ( $this->_specialChars ) |
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256 | $this->_addParser('_encodeSpecialChars'); |
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257 | |
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258 | if ( $this->_encoding ) |
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259 | $this->_addParser('_encodeKeywords'); |
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260 | |
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261 | return $this->_pack($this->_script); |
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262 | } |
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263 | |
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264 | private function _pack($script) |
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265 | { |
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266 | for ( $i = 0; isset($this->_parsers[$i]); ++$i ) |
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267 | $script = call_user_func(array(&$this,$this->_parsers[$i]), $script); |
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268 | |
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269 | return $script; |
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270 | } |
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271 | |
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272 | // keep a list of parsing functions, they'll be executed all at once |
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273 | private function _addParser($parser) |
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274 | { |
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275 | $this->_parsers[] = $parser; |
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276 | } |
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277 | |
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278 | // zero encoding - just removal of white space and comments |
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279 | private function _basicCompression($script) |
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280 | { |
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281 | $parser = new ParseMaster(); |
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282 | // make safe |
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283 | $parser->escapeChar = '\\'; |
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284 | // protect strings |
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285 | $parser->add('/\'[^\'\\n\\r]*\'/', self::IGNORE); |
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286 | $parser->add('/"[^"\\n\\r]*"/', self::IGNORE); |
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287 | // remove comments |
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288 | $parser->add('/\\/\\/[^\\n\\r]*[\\n\\r]/', ' '); |
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289 | $parser->add('/\\/\\*[^*]*\\*+([^\\/][^*]*\\*+)*\\//', ' '); |
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290 | // protect regular expressions |
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291 | $parser->add('/\\s+(\\/[^\\/\\n\\r\\*][^\\/\\n\\r]*\\/g?i?)/', '$2'); // IGNORE |
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292 | $parser->add('/[^\\w\\x24\\/\'"*)\\?:]\\/[^\\/\\n\\r\\*][^\\/\\n\\r]*\\/g?i?/', self::IGNORE); |
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293 | // remove: ;;; doSomething(); |
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294 | if ($this->_specialChars) $parser->add('/;;;[^\\n\\r]+[\\n\\r]/'); |
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295 | // remove redundant semi-colons |
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296 | $parser->add('/\\(;;\\)/', self::IGNORE); // protect for (;;) loops |
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297 | $parser->add('/;+\\s*([};])/', '$2'); |
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298 | // apply the above |
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299 | $script = $parser->exec($script); |
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300 | |
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301 | // remove white-space |
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302 | $parser->add('/(\\b|\\x24)\\s+(\\b|\\x24)/', '$2 $3'); |
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303 | $parser->add('/([+\\-])\\s+([+\\-])/', '$2 $3'); |
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304 | $parser->add('/\\s+/', ''); |
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305 | // done |
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306 | return $parser->exec($script); |
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307 | } |
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308 | |
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309 | private function _encodeSpecialChars($script) |
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310 | { |
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311 | $parser = new ParseMaster(); |
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312 | // replace: $name -> n, $$name -> na |
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313 | $parser->add('/((\\x24+)([a-zA-Z$_]+))(\\d*)/', |
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314 | array('fn' => '_replace_name') |
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315 | ); |
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316 | // replace: _name -> _0, double-underscore (__name) is ignored |
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317 | $regexp = '/\\b_[A-Za-z\\d]\\w*/'; |
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318 | // build the word list |
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319 | $keywords = $this->_analyze($script, $regexp, '_encodePrivate'); |
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320 | // quick ref |
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321 | $encoded = $keywords['encoded']; |
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322 | |
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323 | $parser->add($regexp, |
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324 | array( |
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325 | 'fn' => '_replace_encoded', |
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326 | 'data' => $encoded |
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327 | ) |
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328 | ); |
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329 | return $parser->exec($script); |
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330 | } |
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331 | |
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332 | private function _encodeKeywords($script) { |
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333 | // escape high-ascii values already in the script (i.e. in strings) |
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334 | if ($this->_encoding > 62) |
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335 | $script = $this->_escape95($script); |
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336 | // create the parser |
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337 | $parser = new ParseMaster(); |
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338 | $encode = $this->_getEncoder($this->_encoding); |
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339 | // for high-ascii, don't encode single character low-ascii |
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340 | $regexp = ($this->_encoding > 62) ? '/\\w\\w+/' : '/\\w+/'; |
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341 | // build the word list |
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342 | $keywords = $this->_analyze($script, $regexp, $encode); |
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343 | $encoded = $keywords['encoded']; |
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344 | |
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345 | // encode |
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346 | $parser->add($regexp, |
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347 | array( |
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348 | 'fn' => '_replace_encoded', |
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349 | 'data' => $encoded |
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350 | ) |
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351 | ); |
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352 | if (empty($script)) return $script; |
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353 | else { |
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354 | //$res = $parser->exec($script); |
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355 | //$res = $this->_bootStrap($res, $keywords); |
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356 | //return $res; |
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357 | return $this->_bootStrap($parser->exec($script), $keywords); |
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358 | } |
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359 | } |
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360 | |
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361 | private function _analyze($script, $regexp, $encode) { |
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362 | // analyse |
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363 | // retreive all words in the script |
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364 | $all = array(); |
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365 | preg_match_all($regexp, $script, $all); |
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366 | $_sorted = array(); // list of words sorted by frequency |
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367 | $_encoded = array(); // dictionary of word->encoding |
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368 | $_protected = array(); // instances of "protected" words |
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369 | $all = $all[0]; // simulate the javascript comportement of global match |
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370 | if (!empty($all)) { |
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371 | $unsorted = array(); // same list, not sorted |
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372 | $protected = array(); // "protected" words (dictionary of word->"word") |
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373 | $value = array(); // dictionary of charCode->encoding (eg. 256->ff) |
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374 | $this->_count = array(); // word->count |
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375 | $i = count($all); $j = 0; //$word = null; |
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376 | // count the occurrences - used for sorting later |
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377 | do { |
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378 | --$i; |
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379 | $word = '$' . $all[$i]; |
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380 | if (!isset($this->_count[$word])) { |
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381 | $this->_count[$word] = 0; |
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382 | $unsorted[$j] = $word; |
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383 | // make a dictionary of all of the protected words in this script |
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384 | // these are words that might be mistaken for encoding |
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385 | //if (is_string($encode) && method_exists($this, $encode)) |
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386 | $values[$j] = call_user_func(array(&$this, $encode), $j); |
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387 | $protected['$' . $values[$j]] = $j++; |
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388 | } |
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389 | // increment the word counter |
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390 | $this->_count[$word]++; |
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391 | } while ($i > 0); |
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392 | // prepare to sort the word list, first we must protect |
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393 | // words that are also used as codes. we assign them a code |
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394 | // equivalent to the word itself. |
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395 | // e.g. if "do" falls within our encoding range |
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396 | // then we store keywords["do"] = "do"; |
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397 | // this avoids problems when decoding |
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398 | $i = count($unsorted); |
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399 | do { |
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400 | $word = $unsorted[--$i]; |
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401 | if (isset($protected[$word]) /*!= null*/) { |
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402 | $_sorted[$protected[$word]] = substr($word, 1); |
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403 | $_protected[$protected[$word]] = true; |
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404 | $this->_count[$word] = 0; |
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405 | } |
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406 | } while ($i); |
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407 | |
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408 | // sort the words by frequency |
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409 | // Note: the javascript and php version of sort can be different : |
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410 | // in php manual, usort : |
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411 | // " If two members compare as equal, |
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412 | // their order in the sorted array is undefined." |
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413 | // so the final packed script is different of the Dean's javascript version |
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414 | // but equivalent. |
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415 | // the ECMAscript standard does not guarantee this behaviour, |
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416 | // and thus not all browsers (e.g. Mozilla versions dating back to at |
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417 | // least 2003) respect this. |
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418 | usort($unsorted, array(&$this, '_sortWords')); |
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419 | $j = 0; |
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420 | // because there are "protected" words in the list |
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421 | // we must add the sorted words around them |
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422 | do { |
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423 | if (!isset($_sorted[$i])) |
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424 | $_sorted[$i] = substr($unsorted[$j++], 1); |
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425 | $_encoded[$_sorted[$i]] = $values[$i]; |
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426 | } while (++$i < count($unsorted)); |
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427 | } |
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428 | return array( |
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429 | 'sorted' => $_sorted, |
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430 | 'encoded' => $_encoded, |
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431 | 'protected' => $_protected); |
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432 | } |
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433 | |
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434 | private $_count = array(); |
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435 | private function _sortWords($match1, $match2) { |
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436 | return $this->_count[$match2] - $this->_count[$match1]; |
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437 | } |
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438 | |
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439 | // build the boot function used for loading and decoding |
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440 | private function _bootStrap($packed, $keywords) { |
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441 | $ENCODE = $this->_safeRegExp('$encode\\($count\\)'); |
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442 | |
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443 | // $packed: the packed script |
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444 | $packed = "'" . $this->_escape($packed) . "'"; |
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445 | |
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446 | // $ascii: base for encoding |
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447 | $ascii = min(count($keywords['sorted']), $this->_encoding); |
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448 | if ($ascii == 0) $ascii = 1; |
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449 | |
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450 | // $count: number of words contained in the script |
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451 | $count = count($keywords['sorted']); |
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452 | |
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453 | // $keywords: list of words contained in the script |
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454 | foreach ($keywords['protected'] as $i=>$value) { |
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455 | $keywords['sorted'][$i] = ''; |
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456 | } |
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457 | // convert from a string to an array |
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458 | ksort($keywords['sorted']); |
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459 | $keywords = "'" . implode('|',$keywords['sorted']) . "'.preg_split('/|/')"; |
---|
460 | |
---|
461 | $encode = ($this->_encoding > 62) ? '_encode95' : $this->_getEncoder($ascii); |
---|
462 | $encode = $this->_getJSFunction($encode); |
---|
463 | $encode = preg_replace('/_encoding/','$ascii', $encode); |
---|
464 | $encode = preg_replace('/arguments\\.callee/','$encode', $encode); |
---|
465 | $inline = '\\$count' . ($ascii > 10 ? '.toString(\\$ascii)' : ''); |
---|
466 | |
---|
467 | // $decode: code snippet to speed up decoding |
---|
468 | if ($this->_fastDecode) { |
---|
469 | // create the decoder |
---|
470 | $decode = $this->_getJSFunction('_decodeBody'); |
---|
471 | if ($this->_encoding > 62) |
---|
472 | $decode = preg_replace('/\\\\w/', '[\\xa1-\\xff]', $decode); |
---|
473 | // perform the encoding inline for lower ascii values |
---|
474 | elseif ($ascii < 36) |
---|
475 | $decode = preg_replace($ENCODE, $inline, $decode); |
---|
476 | // special case: when $count==0 there are no keywords. I want to keep |
---|
477 | // the basic shape of the unpacking funcion so i'll frig the code... |
---|
478 | if ($count == 0) |
---|
479 | $decode = preg_replace($this->_safeRegExp('($count)\\s*=\\s*1'), '$1=0', $decode, 1); |
---|
480 | } |
---|
481 | |
---|
482 | // boot function |
---|
483 | $unpack = $this->_getJSFunction('_unpack'); |
---|
484 | if ($this->_fastDecode) { |
---|
485 | // insert the decoder |
---|
486 | $this->buffer = $decode; |
---|
487 | $unpack = preg_replace_callback('/\\{/', array(&$this, '_insertFastDecode'), $unpack, 1); |
---|
488 | } |
---|
489 | $unpack = preg_replace('/"/', "'", $unpack); |
---|
490 | if ($this->_encoding > 62) { // high-ascii |
---|
491 | // get rid of the word-boundaries for regexp matches |
---|
492 | $unpack = preg_replace('/\'\\\\\\\\b\'\s*\\+|\\+\s*\'\\\\\\\\b\'/', '', $unpack); |
---|
493 | } |
---|
494 | if ($ascii > 36 || $this->_encoding > 62 || $this->_fastDecode) { |
---|
495 | // insert the encode function |
---|
496 | $this->buffer = $encode; |
---|
497 | $unpack = preg_replace_callback('/\\{/', array(&$this, '_insertFastEncode'), $unpack, 1); |
---|
498 | } else { |
---|
499 | // perform the encoding inline |
---|
500 | $unpack = preg_replace($ENCODE, $inline, $unpack); |
---|
501 | } |
---|
502 | // pack the boot function too |
---|
503 | $unpackPacker = new JavaScriptPacker($unpack, 0, false, true); |
---|
504 | $unpack = $unpackPacker->pack(); |
---|
505 | |
---|
506 | // arguments |
---|
507 | $params = array($packed, $ascii, $count, $keywords); |
---|
508 | if ($this->_fastDecode) { |
---|
509 | $params[] = 0; |
---|
510 | $params[] = '{}'; |
---|
511 | } |
---|
512 | $params = implode(',', $params); |
---|
513 | |
---|
514 | // the whole thing |
---|
515 | return 'eval(' . $unpack . '(' . $params . "))\n"; |
---|
516 | } |
---|
517 | |
---|
518 | private $buffer; |
---|
519 | private function _insertFastDecode($match) { |
---|
520 | return '{' . $this->buffer . ';'; |
---|
521 | } |
---|
522 | private function _insertFastEncode($match) { |
---|
523 | return '{$encode=' . $this->buffer . ';'; |
---|
524 | } |
---|
525 | |
---|
526 | // mmm.. ..which one do i need ?? |
---|
527 | private function _getEncoder($ascii) { |
---|
528 | return $ascii > 10 ? $ascii > 36 ? $ascii > 62 ? |
---|
529 | '_encode95' : '_encode62' : '_encode36' : '_encode10'; |
---|
530 | } |
---|
531 | |
---|
532 | // zero encoding |
---|
533 | // characters: 0123456789 |
---|
534 | private function _encode10($charCode) { |
---|
535 | return $charCode; |
---|
536 | } |
---|
537 | |
---|
538 | // inherent base36 support |
---|
539 | // characters: 0123456789abcdefghijklmnopqrstuvwxyz |
---|
540 | private function _encode36($charCode) { |
---|
541 | return base_convert($charCode, 10, 36); |
---|
542 | } |
---|
543 | |
---|
544 | // hitch a ride on base36 and add the upper case alpha characters |
---|
545 | // characters: 0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ |
---|
546 | private function _encode62($charCode) { |
---|
547 | $res = ''; |
---|
548 | if ($charCode >= $this->_encoding) { |
---|
549 | $res = $this->_encode62((int)($charCode / $this->_encoding)); |
---|
550 | } |
---|
551 | $charCode = $charCode % $this->_encoding; |
---|
552 | |
---|
553 | if ($charCode > 35) |
---|
554 | return $res . chr($charCode + 29); |
---|
555 | else |
---|
556 | return $res . base_convert($charCode, 10, 36); |
---|
557 | } |
---|
558 | |
---|
559 | // use high-ascii values |
---|
560 | // characters: ¡¢£€¥Š§š©ª«¬Â®¯°±²³Žµ¶·ž¹º»ŒœŸ¿ÃÃÃÃÃÃ
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃà áâãÀåÊçÚéêëìÃîïðñòóÎõö÷ÞùúûÌÜß |
---|
561 | private function _encode95($charCode) { |
---|
562 | $res = ''; |
---|
563 | if ($charCode >= $this->_encoding) |
---|
564 | $res = $this->_encode95($charCode / $this->_encoding); |
---|
565 | |
---|
566 | return $res . chr(($charCode % $this->_encoding) + 161); |
---|
567 | } |
---|
568 | |
---|
569 | private function _safeRegExp($string) { |
---|
570 | return '/'.preg_replace('/\$/', '\\\$', $string).'/'; |
---|
571 | } |
---|
572 | |
---|
573 | private function _encodePrivate($charCode) { |
---|
574 | return "_" . $charCode; |
---|
575 | } |
---|
576 | |
---|
577 | // protect characters used by the parser |
---|
578 | private function _escape($script) { |
---|
579 | return preg_replace('/([\\\\\'])/', '\\\$1', $script); |
---|
580 | } |
---|
581 | |
---|
582 | // protect high-ascii characters already in the script |
---|
583 | private function _escape95($script) { |
---|
584 | return preg_replace_callback( |
---|
585 | '/[\\xa1-\\xff]/', |
---|
586 | array(&$this, '_escape95Bis'), |
---|
587 | $script |
---|
588 | ); |
---|
589 | } |
---|
590 | private function _escape95Bis($match) { |
---|
591 | return '\x'.((string)dechex(ord($match))); |
---|
592 | } |
---|
593 | |
---|
594 | |
---|
595 | private function _getJSFunction($aName) { |
---|
596 | if (defined('self::JSFUNCTION'.$aName)) |
---|
597 | return constant('self::JSFUNCTION'.$aName); |
---|
598 | else |
---|
599 | return ''; |
---|
600 | } |
---|
601 | |
---|
602 | // JavaScript Functions used. |
---|
603 | // Note : In Dean's version, these functions are converted |
---|
604 | // with 'String(aFunctionName);'. |
---|
605 | // This internal conversion complete the original code, ex : |
---|
606 | // 'while (aBool) anAction();' is converted to |
---|
607 | // 'while (aBool) { anAction(); }'. |
---|
608 | // The JavaScript functions below are corrected. |
---|
609 | |
---|
610 | // unpacking function - this is the boot strap function |
---|
611 | // data extracted from this packing routine is passed to |
---|
612 | // this function when decoded in the target |
---|
613 | // NOTE ! : without the ';' final. |
---|
614 | const JSFUNCTION_unpack = |
---|
615 | |
---|
616 | 'function($packed, $ascii, $count, $keywords, $encode, $decode) { |
---|
617 | while ($count--) { |
---|
618 | if ($keywords[$count]) { |
---|
619 | $packed = $packed.replace(new RegExp(\'\\\\b\' + $encode($count) + \'\\\\b\', \'g\'), $keywords[$count]); |
---|
620 | } |
---|
621 | } |
---|
622 | return $packed; |
---|
623 | }'; |
---|
624 | /* |
---|
625 | 'function($packed, $ascii, $count, $keywords, $encode, $decode) { |
---|
626 | while ($count--) |
---|
627 | if ($keywords[$count]) |
---|
628 | $packed = $packed.replace(new RegExp(\'\\\\b\' + $encode($count) + \'\\\\b\', \'g\'), $keywords[$count]); |
---|
629 | return $packed; |
---|
630 | }'; |
---|
631 | */ |
---|
632 | |
---|
633 | // code-snippet inserted into the unpacker to speed up decoding |
---|
634 | const JSFUNCTION_decodeBody = |
---|
635 | //_decode = function() { |
---|
636 | // does the browser support String.replace where the |
---|
637 | // replacement value is a function? |
---|
638 | |
---|
639 | ' if (!\'\'.replace(/^/, String)) { |
---|
640 | // decode all the values we need |
---|
641 | while ($count--) { |
---|
642 | $decode[$encode($count)] = $keywords[$count] || $encode($count); |
---|
643 | } |
---|
644 | // global replacement function |
---|
645 | $keywords = [function ($encoded) {return $decode[$encoded]}]; |
---|
646 | // generic match |
---|
647 | $encode = function () {return \'\\\\w+\'}; |
---|
648 | // reset the loop counter - we are now doing a global replace |
---|
649 | $count = 1; |
---|
650 | } |
---|
651 | '; |
---|
652 | //}; |
---|
653 | /* |
---|
654 | ' if (!\'\'.replace(/^/, String)) { |
---|
655 | // decode all the values we need |
---|
656 | while ($count--) $decode[$encode($count)] = $keywords[$count] || $encode($count); |
---|
657 | // global replacement function |
---|
658 | $keywords = [function ($encoded) {return $decode[$encoded]}]; |
---|
659 | // generic match |
---|
660 | $encode = function () {return\'\\\\w+\'}; |
---|
661 | // reset the loop counter - we are now doing a global replace |
---|
662 | $count = 1; |
---|
663 | }'; |
---|
664 | */ |
---|
665 | |
---|
666 | // zero encoding |
---|
667 | // characters: 0123456789 |
---|
668 | const JSFUNCTION_encode10 = |
---|
669 | 'function($charCode) { |
---|
670 | return $charCode; |
---|
671 | }';//;'; |
---|
672 | |
---|
673 | // inherent base36 support |
---|
674 | // characters: 0123456789abcdefghijklmnopqrstuvwxyz |
---|
675 | const JSFUNCTION_encode36 = |
---|
676 | 'function($charCode) { |
---|
677 | return $charCode.toString(36); |
---|
678 | }';//;'; |
---|
679 | |
---|
680 | // hitch a ride on base36 and add the upper case alpha characters |
---|
681 | // characters: 0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ |
---|
682 | const JSFUNCTION_encode62 = |
---|
683 | 'function($charCode) { |
---|
684 | return ($charCode < _encoding ? \'\' : arguments.callee(parseInt($charCode / _encoding))) + |
---|
685 | (($charCode = $charCode % _encoding) > 35 ? String.fromCharCode($charCode + 29) : $charCode.toString(36)); |
---|
686 | }'; |
---|
687 | |
---|
688 | // use high-ascii values |
---|
689 | // characters: ¡¢£€¥Š§š©ª«¬Â®¯°±²³Žµ¶·ž¹º»ŒœŸ¿ÃÃÃÃÃÃ
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃà áâãÀåÊçÚéêëìÃîïðñòóÎõö÷ÞùúûÌÜß |
---|
690 | const JSFUNCTION_encode95 = |
---|
691 | 'function($charCode) { |
---|
692 | return ($charCode < _encoding ? \'\' : arguments.callee($charCode / _encoding)) + |
---|
693 | String.fromCharCode($charCode % _encoding + 161); |
---|
694 | }'; |
---|
695 | |
---|
696 | } |
---|
697 | |
---|
698 | |
---|
699 | class ParseMaster { |
---|
700 | public $ignoreCase = false; |
---|
701 | public $escapeChar = ''; |
---|
702 | |
---|
703 | // constants |
---|
704 | const EXPRESSION = 0; |
---|
705 | const REPLACEMENT = 1; |
---|
706 | const LENGTH = 2; |
---|
707 | |
---|
708 | // used to determine nesting levels |
---|
709 | private $GROUPS = '/\\(/';//g |
---|
710 | private $SUB_REPLACE = '/\\$\\d/'; |
---|
711 | private $INDEXED = '/^\\$\\d+$/'; |
---|
712 | private $TRIM = '/([\'"])\\1\\.(.*)\\.\\1\\1$/'; |
---|
713 | private $ESCAPE = '/\\\./';//g |
---|
714 | private $QUOTE = '/\'/'; |
---|
715 | private $DELETED = '/\\x01[^\\x01]*\\x01/';//g |
---|
716 | |
---|
717 | public function add($expression, $replacement = '') { |
---|
718 | // count the number of sub-expressions |
---|
719 | // - add one because each pattern is itself a sub-expression |
---|
720 | $length = 1 + preg_match_all($this->GROUPS, $this->_internalEscape((string)$expression), $out); |
---|
721 | |
---|
722 | // treat only strings $replacement |
---|
723 | if (is_string($replacement)) { |
---|
724 | // does the pattern deal with sub-expressions? |
---|
725 | if (preg_match($this->SUB_REPLACE, $replacement)) { |
---|
726 | // a simple lookup? (e.g. "$2") |
---|
727 | if (preg_match($this->INDEXED, $replacement)) { |
---|
728 | // store the index (used for fast retrieval of matched strings) |
---|
729 | $replacement = (int)(substr($replacement, 1)) - 1; |
---|
730 | } else { // a complicated lookup (e.g. "Hello $2 $1") |
---|
731 | // build a function to do the lookup |
---|
732 | $quote = preg_match($this->QUOTE, $this->_internalEscape($replacement)) |
---|
733 | ? '"' : "'"; |
---|
734 | $replacement = array( |
---|
735 | 'fn' => '_backReferences', |
---|
736 | 'data' => array( |
---|
737 | 'replacement' => $replacement, |
---|
738 | 'length' => $length, |
---|
739 | 'quote' => $quote |
---|
740 | ) |
---|
741 | ); |
---|
742 | } |
---|
743 | } |
---|
744 | } |
---|
745 | // pass the modified arguments |
---|
746 | if (!empty($expression)) $this->_add($expression, $replacement, $length); |
---|
747 | else $this->_add('/^$/', $replacement, $length); |
---|
748 | } |
---|
749 | |
---|
750 | public function exec($string) { |
---|
751 | // execute the global replacement |
---|
752 | $this->_escaped = array(); |
---|
753 | |
---|
754 | // simulate the _patterns.toSTring of Dean |
---|
755 | $regexp = '/'; |
---|
756 | foreach ($this->_patterns as $reg) { |
---|
757 | $regexp .= '(' . substr($reg[self::EXPRESSION], 1, -1) . ')|'; |
---|
758 | } |
---|
759 | $regexp = substr($regexp, 0, -1) . '/'; |
---|
760 | $regexp .= ($this->ignoreCase) ? 'i' : ''; |
---|
761 | |
---|
762 | $string = $this->_escape($string, $this->escapeChar); |
---|
763 | $string = preg_replace_callback( |
---|
764 | $regexp, |
---|
765 | array( |
---|
766 | &$this, |
---|
767 | '_replacement' |
---|
768 | ), |
---|
769 | $string |
---|
770 | ); |
---|
771 | $string = $this->_unescape($string, $this->escapeChar); |
---|
772 | |
---|
773 | return preg_replace($this->DELETED, '', $string); |
---|
774 | } |
---|
775 | |
---|
776 | public function reset() { |
---|
777 | // clear the patterns collection so that this object may be re-used |
---|
778 | $this->_patterns = array(); |
---|
779 | } |
---|
780 | |
---|
781 | // private |
---|
782 | private $_escaped = array(); // escaped characters |
---|
783 | private $_patterns = array(); // patterns stored by index |
---|
784 | |
---|
785 | // create and add a new pattern to the patterns collection |
---|
786 | private function _add() { |
---|
787 | $arguments = func_get_args(); |
---|
788 | $this->_patterns[] = $arguments; |
---|
789 | } |
---|
790 | |
---|
791 | // this is the global replace function (it's quite complicated) |
---|
792 | private function _replacement($arguments) { |
---|
793 | if (empty($arguments)) return ''; |
---|
794 | |
---|
795 | $i = 1; $j = 0; |
---|
796 | // loop through the patterns |
---|
797 | while (isset($this->_patterns[$j])) { |
---|
798 | $pattern = $this->_patterns[$j++]; |
---|
799 | // do we have a result? |
---|
800 | if (isset($arguments[$i]) && ($arguments[$i] != '')) { |
---|
801 | $replacement = $pattern[self::REPLACEMENT]; |
---|
802 | |
---|
803 | if (is_array($replacement) && isset($replacement['fn'])) { |
---|
804 | |
---|
805 | if (isset($replacement['data'])) $this->buffer = $replacement['data']; |
---|
806 | return call_user_func(array(&$this, $replacement['fn']), $arguments, $i); |
---|
807 | |
---|
808 | } elseif (is_int($replacement)) { |
---|
809 | return $arguments[$replacement + $i]; |
---|
810 | |
---|
811 | } |
---|
812 | $delete = ($this->escapeChar == '' || |
---|
813 | strpos($arguments[$i], $this->escapeChar) === false) |
---|
814 | ? '' : "\x01" . $arguments[$i] . "\x01"; |
---|
815 | return $delete . $replacement; |
---|
816 | |
---|
817 | // skip over references to sub-expressions |
---|
818 | } else { |
---|
819 | $i += $pattern[self::LENGTH]; |
---|
820 | } |
---|
821 | } |
---|
822 | } |
---|
823 | |
---|
824 | private function _backReferences($match, $offset) { |
---|
825 | $replacement = $this->buffer['replacement']; |
---|
826 | $quote = $this->buffer['quote']; |
---|
827 | $i = $this->buffer['length']; |
---|
828 | while ($i) { |
---|
829 | $replacement = str_replace('$'.$i--, $match[$offset + $i], $replacement); |
---|
830 | } |
---|
831 | return $replacement; |
---|
832 | } |
---|
833 | |
---|
834 | private function _replace_name($match, $offset){ |
---|
835 | $length = strlen($match[$offset + 2]); |
---|
836 | $start = $length - max($length - strlen($match[$offset + 3]), 0); |
---|
837 | return substr($match[$offset + 1], $start, $length) . $match[$offset + 4]; |
---|
838 | } |
---|
839 | |
---|
840 | private function _replace_encoded($match, $offset) { |
---|
841 | return $this->buffer[$match[$offset]]; |
---|
842 | } |
---|
843 | |
---|
844 | |
---|
845 | // php : we cannot pass additional data to preg_replace_callback, |
---|
846 | // and we cannot use &$this in create_function, so let's go to lower level |
---|
847 | private $buffer; |
---|
848 | |
---|
849 | // encode escaped characters |
---|
850 | private function _escape($string, $escapeChar) { |
---|
851 | if ($escapeChar) { |
---|
852 | $this->buffer = $escapeChar; |
---|
853 | return preg_replace_callback( |
---|
854 | '/\\' . $escapeChar . '(.)' .'/', |
---|
855 | array(&$this, '_escapeBis'), |
---|
856 | $string |
---|
857 | ); |
---|
858 | |
---|
859 | } else { |
---|
860 | return $string; |
---|
861 | } |
---|
862 | } |
---|
863 | private function _escapeBis($match) { |
---|
864 | $this->_escaped[] = $match[1]; |
---|
865 | return $this->buffer; |
---|
866 | } |
---|
867 | |
---|
868 | // decode escaped characters |
---|
869 | private function _unescape($string, $escapeChar) { |
---|
870 | if ($escapeChar) { |
---|
871 | $regexp = '/'.'\\'.$escapeChar.'/'; |
---|
872 | $this->buffer = array('escapeChar'=> $escapeChar, 'i' => 0); |
---|
873 | return preg_replace_callback |
---|
874 | ( |
---|
875 | $regexp, |
---|
876 | array(&$this, '_unescapeBis'), |
---|
877 | $string |
---|
878 | ); |
---|
879 | |
---|
880 | } else { |
---|
881 | return $string; |
---|
882 | } |
---|
883 | } |
---|
884 | private function _unescapeBis() { |
---|
885 | if (!empty($this->_escaped[$this->buffer['i']])) { |
---|
886 | $temp = $this->_escaped[$this->buffer['i']]; |
---|
887 | } else { |
---|
888 | $temp = ''; |
---|
889 | } |
---|
890 | $this->buffer['i']++; |
---|
891 | return $this->buffer['escapeChar'] . $temp; |
---|
892 | } |
---|
893 | |
---|
894 | private function _internalEscape($string) { |
---|
895 | return preg_replace($this->ESCAPE, '', $string); |
---|
896 | } |
---|
897 | } |
---|
898 | |
---|
899 | ?> |
---|