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2 | daniel-mar | 1 | <? |
2 | |||
3 | daniel-mar | 3 | if (!defined('IBLEGAL')) die('Kann nicht ohne Personal WebBase ausgeführt werden.'); |
2 | daniel-mar | 4 | |
5 | // 15/07/2006 (2.6) |
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6 | // - Changed the algorithm to parse the ZIP file.. Now, the script will try to mount the compressed |
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7 | // list, searching on the 'Central Dir' records. If it fails, the script will try to search by |
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8 | // checking every signature. Thanks to Jayson Cruz for pointing it. |
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9 | // 25/01/2006 (2.51) |
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10 | // - Fixed bug when calling 'unzip' without calling 'getList' first. Thanks to Bala Murthu for pointing it. |
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11 | // 01/12/2006 (2.5) |
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12 | // - Added optional parameter "applyChmod" for the "unzip()" method. It auto applies the given chmod for |
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13 | // extracted files. |
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14 | // - Permission 777 (all read-write-exec) is default. If you want to change it, you'll need to make it |
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15 | // explicit. (If you want the OS to determine, set "false" as "applyChmod" parameter) |
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16 | // 28/11/2005 (2.4) |
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17 | // - dUnzip2 is now compliant with old-style "Data Description", made by some compressors, |
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18 | // like the classes ZipLib and ZipLib2 by 'Hasin Hayder'. Thanks to Ricardo Parreno for pointing it. |
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19 | // 09/11/2005 (2.3) |
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20 | // - Added optional parameter '$stopOnFile' on method 'getList()'. |
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21 | // If given, file listing will stop when find given filename. (Useful to open and unzip an exact file) |
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22 | // 06/11/2005 (2.21) |
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23 | // - Added support to PK00 file format (Packed to Removable Disk) (thanks to Lito [PHPfileNavigator]) |
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24 | // - Method 'getExtraInfo': If requested file doesn't exist, return FALSE instead of Array() |
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25 | // 31/10/2005 (2.2) |
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26 | // - Removed redundant 'file_name' on centralDirs declaration (thanks to Lito [PHPfileNavigator]) |
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27 | // - Fixed redeclaration of file_put_contents when in PHP4 (not returning true) |
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28 | |||
29 | ############################################################## |
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30 | # Class dUnzip2 v2.6 |
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31 | # |
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32 | # Author: Alexandre Tedeschi (d) |
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33 | # E-Mail: alexandrebr at gmail dot com |
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34 | # Londrina - PR / Brazil |
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35 | # |
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36 | # Objective: |
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37 | # This class allows programmer to easily unzip files on the fly. |
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38 | # |
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39 | # Requirements: |
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40 | # This class requires extension ZLib Enabled. It is default |
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41 | # for most site hosts around the world, and for the PHP Win32 dist. |
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42 | # |
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43 | # To do: |
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44 | # * Error handling |
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45 | # * Write a PHP-Side gzinflate, to completely avoid any external extensions |
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46 | # * Write other decompress algorithms |
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47 | # |
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48 | # If you modify this class, or have any ideas to improve it, please contact me! |
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49 | # You are allowed to redistribute this class, if you keep my name and contact e-mail on it. |
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50 | # |
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51 | # PLEASE! IF YOU USE THIS CLASS IN ANY OF YOUR PROJECTS, PLEASE LET ME KNOW! |
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52 | # If you have problems using it, don't think twice before contacting me! |
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53 | # |
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54 | ############################################################## |
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55 | |||
3 | daniel-mar | 56 | // Personal WebBase Zusatz für Kompatibilität mit Safe-Mode-Restriktion |
2 | daniel-mar | 57 | |
58 | function my_mkdir($dr) |
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59 | { |
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60 | global $conn_id; |
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61 | global $konfiguration; |
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62 | global $uid; |
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63 | global $modul; |
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64 | $dr2 = substr($dr, strlen('modules/'.$modul.'/temp/'.$uid), strlen($dr)-strlen('modules/'.$modul.'/temp/'.$uid)); |
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65 | @ftp_mkdir($conn_id, $konfiguration['core_directftp']['ftp-verzeichnis'].'modules/'.$modul.'/temp/'.$uid.$dr2); |
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66 | @ftp_site($conn_id, 'CHMOD 0755 '.$konfiguration['core_directftp']['ftp-verzeichnis'].'modules/'.$modul.'/temp/'.$uid.$dr2); |
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67 | } |
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68 | |||
69 | function my_chmod($dr) |
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70 | { |
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71 | global $conn_id; |
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72 | global $konfiguration; |
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73 | global $uid; |
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74 | global $modul; |
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75 | $dr2 = substr($dr, strlen('modules/'.$modul.'/temp/'.$uid), strlen($dr)-strlen('modules/'.$modul.'/temp/'.$uid)); |
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76 | if (is_dir($dr)) |
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77 | @ftp_site($conn_id, 'CHMOD 0755 '.$konfiguration['core_directftp']['ftp-verzeichnis'].'modules/'.$modul.'/temp/'.$uid.$dr2); |
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78 | else |
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79 | @ftp_site($conn_id, 'CHMOD 0644 '.$konfiguration['core_directftp']['ftp-verzeichnis'].'modules/'.$modul.'/temp/'.$uid.$dr2); |
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80 | } |
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81 | |||
82 | function pre_create_file($dr) |
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83 | { |
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84 | global $conn_id; |
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85 | global $konfiguration; |
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86 | global $uid; |
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87 | global $modul; |
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88 | $dr2 = substr($dr, strlen('modules/'.$modul.'/temp/'.$uid), strlen($dr)-strlen('modules/'.$modul.'/temp/'.$uid)); |
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89 | @ftp_put($conn_id, $konfiguration['core_directftp']['ftp-verzeichnis'].'modules/'.$modul.'/temp/'.$uid.$dr2, 'modules/'.$modul.'/null-file.txt', FTP_ASCII); |
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90 | @ftp_site($conn_id, 'CHMOD 0777 '.$konfiguration['core_directftp']['ftp-verzeichnis'].'modules/'.$modul.'/temp/'.$uid.$dr2); |
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91 | } |
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92 | |||
93 | function file_put_contents_precreate($file, $data) |
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94 | { |
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95 | pre_create_file($file); |
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96 | if($tmp = fopen($file, "w")){ |
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97 | fwrite($tmp, $data); |
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98 | fclose($tmp); |
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99 | return true; |
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100 | } |
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101 | echo "<b>file_put_contents_precreate:</b> Cannot create file $file<br>"; |
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102 | return false; |
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103 | } |
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104 | |||
3 | daniel-mar | 105 | // Ende - Personal WebBase Zusatz |
2 | daniel-mar | 106 | |
107 | class dUnzip2{ |
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108 | Function getVersion(){ |
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109 | return "2.6"; |
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110 | } |
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111 | // Public |
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112 | var $fileName; |
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113 | var $compressedList; // You will problably use only this one! |
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114 | var $centralDirList; // Central dir list... It's a kind of 'extra attributes' for a set of files |
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115 | var $endOfCentral; // End of central dir, contains ZIP Comments |
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116 | var $debug; |
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117 | |||
118 | // Private |
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119 | var $fh; |
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120 | var $zipSignature = "\x50\x4b\x03\x04"; // local file header signature |
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121 | var $dirSignature = "\x50\x4b\x01\x02"; // central dir header signature |
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122 | var $dirSignatureE= "\x50\x4b\x05\x06"; // end of central dir signature |
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123 | |||
124 | // Public |
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125 | Function dUnzip2($fileName){ |
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126 | $this->fileName = $fileName; |
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127 | $this->compressedList = |
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128 | $this->centralDirList = |
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129 | $this->endOfCentral = Array(); |
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130 | } |
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131 | |||
132 | Function getList($stopOnFile=false){ |
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133 | if(sizeof($this->compressedList)){ |
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134 | $this->debugMsg(1, "Returning already loaded file list."); |
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135 | return $this->compressedList; |
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136 | } |
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137 | |||
138 | // Open file, and set file handler |
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139 | $fh = fopen($this->fileName, "r"); |
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140 | $this->fh = &$fh; |
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141 | if(!$fh){ |
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142 | $this->debugMsg(2, "Failed to load file."); |
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143 | return false; |
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144 | } |
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145 | |||
146 | $this->debugMsg(1, "Loading list from 'End of Central Dir' index list..."); |
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147 | if(!$this->_loadFileListByEOF($fh, $stopOnFile)){ |
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148 | $this->debugMsg(1, "Failed! Trying to load list looking for signatures..."); |
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149 | if(!$this->_loadFileListBySignatures($fh, $stopOnFile)){ |
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150 | $this->debugMsg(1, "Failed! Could not find any valid header."); |
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151 | $this->debugMsg(2, "ZIP File is corrupted or empty"); |
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152 | return false; |
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153 | } |
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154 | } |
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155 | |||
156 | if($this->debug){ |
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157 | #------- Debug compressedList |
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158 | $kkk = 0; |
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159 | echo "<table border='0' style='font: 11px Verdana; border: 1px solid #000'>"; |
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160 | foreach($this->compressedList as $fileName=>$item){ |
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161 | if(!$kkk && $kkk=1){ |
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162 | echo "<tr style='background: #ADA'>"; |
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163 | foreach($item as $fieldName=>$value) |
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164 | echo "<td>$fieldName</td>"; |
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165 | echo '</tr>'; |
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166 | } |
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167 | echo "<tr style='background: #CFC'>"; |
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168 | foreach($item as $fieldName=>$value){ |
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169 | if($fieldName == 'lastmod_datetime') |
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170 | echo "<td title='$fieldName' nowrap='nowrap'>".date("d/m/Y H:i:s", $value)."</td>"; |
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171 | else |
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172 | echo "<td title='$fieldName' nowrap='nowrap'>$value</td>"; |
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173 | } |
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174 | echo "</tr>"; |
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175 | } |
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176 | echo "</table>"; |
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177 | |||
178 | #------- Debug centralDirList |
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179 | $kkk = 0; |
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180 | if(sizeof($this->centralDirList)){ |
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181 | echo "<table border='0' style='font: 11px Verdana; border: 1px solid #000'>"; |
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182 | foreach($this->centralDirList as $fileName=>$item){ |
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183 | if(!$kkk && $kkk=1){ |
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184 | echo "<tr style='background: #AAD'>"; |
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185 | foreach($item as $fieldName=>$value) |
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186 | echo "<td>$fieldName</td>"; |
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187 | echo '</tr>'; |
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188 | } |
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189 | echo "<tr style='background: #CCF'>"; |
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190 | foreach($item as $fieldName=>$value){ |
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191 | if($fieldName == 'lastmod_datetime') |
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192 | echo "<td title='$fieldName' nowrap='nowrap'>".date("d/m/Y H:i:s", $value)."</td>"; |
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193 | else |
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194 | echo "<td title='$fieldName' nowrap='nowrap'>$value</td>"; |
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195 | } |
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196 | echo "</tr>"; |
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197 | } |
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198 | echo "</table>"; |
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199 | } |
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200 | |||
201 | #------- Debug endOfCentral |
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202 | $kkk = 0; |
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203 | if(sizeof($this->endOfCentral)){ |
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204 | echo "<table border='0' style='font: 11px Verdana' style='border: 1px solid #000'>"; |
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205 | echo "<tr style='background: #DAA'><td colspan='2'>dUnzip - End of file</td></tr>"; |
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206 | foreach($this->endOfCentral as $field=>$value){ |
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207 | echo "<tr>"; |
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208 | echo "<td style='background: #FCC'>$field</td>"; |
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209 | echo "<td style='background: #FDD'>$value</td>"; |
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210 | echo "</tr>"; |
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211 | } |
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212 | echo "</table>"; |
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213 | } |
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214 | } |
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215 | |||
216 | return $this->compressedList; |
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217 | } |
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218 | Function getExtraInfo($compressedFileName){ |
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219 | return |
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220 | isset($this->centralDirList[$compressedFileName])? |
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221 | $this->centralDirList[$compressedFileName]: |
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222 | false; |
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223 | } |
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224 | Function getZipInfo($detail=false){ |
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225 | return $detail? |
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226 | $this->endOfCentral[$detail]: |
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227 | $this->endOfCentral; |
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228 | } |
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229 | |||
230 | Function unzip($compressedFileName, $targetFileName=false){ |
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231 | if(!sizeof($this->compressedList)){ |
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232 | $this->debugMsg(1, "Trying to unzip before loading file list... Loading it!"); |
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233 | $this->getList(false, $compressedFileName); |
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234 | } |
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235 | |||
236 | $fdetails = &$this->compressedList[$compressedFileName]; |
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237 | if(!isset($this->compressedList[$compressedFileName])){ |
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238 | $this->debugMsg(2, "File '<b>$compressedFileName</b>' is not compressed in the zip."); |
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239 | return false; |
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240 | } |
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241 | if(substr($compressedFileName, -1) == "/"){ |
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242 | $this->debugMsg(2, "Trying to unzip a folder name '<b>$compressedFileName</b>'."); |
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243 | return false; |
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244 | } |
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245 | if(!$fdetails['uncompressed_size']){ |
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246 | $this->debugMsg(1, "File '<b>$compressedFileName</b>' is empty."); |
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3 | daniel-mar | 247 | // Verändert für Personal WebBase |
2 | daniel-mar | 248 | if ($targetFileName) |
249 | { |
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250 | $x = file_put_contents_precreate($targetFileName, ""); |
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251 | my_chmod($targetFileName); |
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252 | return $x; |
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253 | } |
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254 | else |
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255 | { |
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256 | return ""; |
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257 | } |
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258 | } |
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259 | |||
260 | fseek($this->fh, $fdetails['contents-startOffset']); |
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261 | $ret = $this->uncompress( |
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262 | fread($this->fh, $fdetails['compressed_size']), |
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263 | $fdetails['compression_method'], |
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264 | $fdetails['uncompressed_size'], |
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265 | $targetFileName |
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266 | ); |
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267 | //if($applyChmod && $targetFileName) |
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268 | my_chmod($targetFileName); |
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269 | |||
270 | return $ret; |
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271 | } |
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272 | Function unzipAll($targetDir=false, $baseDir="", $maintainStructure=true){ |
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273 | if($targetDir === false) |
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274 | $targetDir = dirname(__FILE__)."/"; |
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275 | |||
276 | $lista = $this->getList(); |
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277 | if(sizeof($lista)) foreach($lista as $fileName=>$trash){ |
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278 | $dirname = dirname($fileName); |
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279 | $outDN = "$targetDir/$dirname"; |
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280 | |||
281 | if(substr($dirname, 0, strlen($baseDir)) != $baseDir) |
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282 | continue; |
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283 | |||
284 | if(!is_dir($outDN) && $maintainStructure){ |
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285 | $str = ""; |
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286 | $folders = explode("/", $dirname); |
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287 | foreach($folders as $folder){ |
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288 | $str = $str?"$str/$folder":$folder; |
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289 | if(!is_dir("$targetDir/$str")){ |
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290 | $this->debugMsg(1, "Creating folder: $targetDir/$str"); |
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291 | my_mkdir("$targetDir/$str"); |
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292 | //if($applyChmod) |
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293 | my_chmod("$targetDir/$str"); |
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294 | } |
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295 | } |
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296 | } |
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297 | if(substr($fileName, -1, 1) == "/") |
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298 | continue; |
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299 | |||
300 | $maintainStructure? |
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301 | $this->unzip($fileName, "$targetDir/$fileName"): |
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302 | $this->unzip($fileName, "$targetDir/".basename($fileName)); |
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303 | } |
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304 | } |
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305 | |||
306 | Function close(){ // Free the file resource |
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307 | if($this->fh) |
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308 | fclose($this->fh); |
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309 | } |
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310 | Function __destroy(){ |
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311 | $this->close(); |
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312 | } |
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313 | |||
314 | // Private (you should NOT call these methods): |
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315 | Function uncompress($content, $mode, $uncompressedSize, $targetFileName=false){ |
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316 | switch($mode){ |
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317 | case 0: |
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318 | // Not compressed |
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319 | return $targetFileName? |
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320 | file_put_contents_precreate($targetFileName, $content): |
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321 | $content; |
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322 | case 1: |
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323 | $this->debugMsg(2, "Shrunk mode is not supported... yet?"); |
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324 | return false; |
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325 | case 2: |
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326 | case 3: |
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327 | case 4: |
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328 | case 5: |
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329 | $this->debugMsg(2, "Compression factor ".($mode-1)." is not supported... yet?"); |
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330 | return false; |
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331 | case 6: |
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332 | $this->debugMsg(2, "Implode is not supported... yet?"); |
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333 | return false; |
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334 | case 7: |
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335 | $this->debugMsg(2, "Tokenizing compression algorithm is not supported... yet?"); |
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336 | return false; |
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337 | case 8: |
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338 | // Deflate |
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339 | return $targetFileName? |
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340 | file_put_contents_precreate($targetFileName, gzinflate($content, $uncompressedSize)): |
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341 | gzinflate($content, $uncompressedSize); |
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342 | case 9: |
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343 | $this->debugMsg(2, "Enhanced Deflating is not supported... yet?"); |
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344 | return false; |
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345 | case 10: |
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346 | $this->debugMsg(2, "PKWARE Date Compression Library Impoloding is not supported... yet?"); |
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347 | return false; |
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348 | case 12: |
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349 | // Bzip2 |
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350 | return $targetFileName? |
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351 | file_put_contents_precreate($targetFileName, bzdecompress($content)): |
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352 | bzdecompress($content); |
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353 | case 18: |
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354 | $this->debugMsg(2, "IBM TERSE is not supported... yet?"); |
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355 | return false; |
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356 | default: |
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357 | $this->debugMsg(2, "Unknown uncompress method: $mode"); |
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358 | return false; |
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359 | } |
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360 | } |
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361 | Function debugMsg($level, $string){ |
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362 | if($this->debug) |
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363 | if($level == 1) |
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364 | echo "<b style='color: #777'>dUnzip2:</b> $string<br>"; |
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365 | if($level == 2) |
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366 | echo "<b style='color: #F00'>dUnzip2:</b> $string<br>"; |
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367 | } |
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368 | |||
369 | Function _loadFileListByEOF(&$fh, $stopOnFile=false){ |
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370 | // Check if there's a valid Central Dir signature. |
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371 | // Let's consider a file comment smaller than 1024 characters... |
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372 | // Actually, it length can be 65536.. But we're not going to support it. |
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373 | |||
374 | for($x = 0; $x < 1024; $x++){ |
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375 | fseek($fh, -22-$x, SEEK_END); |
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376 | |||
377 | $signature = fread($fh, 4); |
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378 | if($signature == $this->dirSignatureE){ |
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379 | // If found EOF Central Dir |
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380 | $eodir['disk_number_this'] = unpack("v", fread($fh, 2)); // number of this disk |
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381 | $eodir['disk_number'] = unpack("v", fread($fh, 2)); // number of the disk with the start of the central directory |
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382 | $eodir['total_entries_this'] = unpack("v", fread($fh, 2)); // total number of entries in the central dir on this disk |
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383 | $eodir['total_entries'] = unpack("v", fread($fh, 2)); // total number of entries in |
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384 | $eodir['size_of_cd'] = unpack("V", fread($fh, 4)); // size of the central directory |
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385 | $eodir['offset_start_cd'] = unpack("V", fread($fh, 4)); // offset of start of central directory with respect to the starting disk number |
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386 | $zipFileCommentLenght = unpack("v", fread($fh, 2)); // zipfile comment length |
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387 | $eodir['zipfile_comment'] = $zipFileCommentLenght[1]?fread($fh, $zipFileCommentLenght[1]):''; // zipfile comment |
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388 | $this->endOfCentral = Array( |
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389 | 'disk_number_this'=>$eodir['disk_number_this'][1], |
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390 | 'disk_number'=>$eodir['disk_number'][1], |
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391 | 'total_entries_this'=>$eodir['total_entries_this'][1], |
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392 | 'total_entries'=>$eodir['total_entries'][1], |
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393 | 'size_of_cd'=>$eodir['size_of_cd'][1], |
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394 | 'offset_start_cd'=>$eodir['offset_start_cd'][1], |
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395 | 'zipfile_comment'=>$eodir['zipfile_comment'], |
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396 | ); |
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397 | |||
398 | // Then, load file list |
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399 | fseek($fh, $this->endOfCentral['offset_start_cd']); |
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400 | $signature = fread($fh, 4); |
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401 | |||
402 | while($signature == $this->dirSignature){ |
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403 | $dir['version_madeby'] = unpack("v", fread($fh, 2)); // version made by |
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404 | $dir['version_needed'] = unpack("v", fread($fh, 2)); // version needed to extract |
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405 | $dir['general_bit_flag'] = unpack("v", fread($fh, 2)); // general purpose bit flag |
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406 | $dir['compression_method'] = unpack("v", fread($fh, 2)); // compression method |
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407 | $dir['lastmod_time'] = unpack("v", fread($fh, 2)); // last mod file time |
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408 | $dir['lastmod_date'] = unpack("v", fread($fh, 2)); // last mod file date |
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409 | $dir['crc-32'] = fread($fh, 4); // crc-32 |
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410 | $dir['compressed_size'] = unpack("V", fread($fh, 4)); // compressed size |
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411 | $dir['uncompressed_size'] = unpack("V", fread($fh, 4)); // uncompressed size |
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412 | $fileNameLength = unpack("v", fread($fh, 2)); // filename length |
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413 | $extraFieldLength = unpack("v", fread($fh, 2)); // extra field length |
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414 | $fileCommentLength = unpack("v", fread($fh, 2)); // file comment length |
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415 | $dir['disk_number_start'] = unpack("v", fread($fh, 2)); // disk number start |
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416 | $dir['internal_attributes'] = unpack("v", fread($fh, 2)); // internal file attributes-byte1 |
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417 | $dir['external_attributes1']= unpack("v", fread($fh, 2)); // external file attributes-byte2 |
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418 | $dir['external_attributes2']= unpack("v", fread($fh, 2)); // external file attributes |
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419 | $dir['relative_offset'] = unpack("V", fread($fh, 4)); // relative offset of local header |
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420 | $dir['file_name'] = fread($fh, $fileNameLength[1]); // filename |
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421 | $dir['extra_field'] = $extraFieldLength[1] ?fread($fh, $extraFieldLength[1]) :''; // extra field |
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422 | $dir['file_comment'] = $fileCommentLength[1]?fread($fh, $fileCommentLength[1]):''; // file comment |
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423 | |||
424 | // Convert the date and time, from MS-DOS format to UNIX Timestamp |
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425 | $BINlastmod_date = str_pad(decbin($dir['lastmod_date'][1]), 16, '0', STR_PAD_LEFT); |
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426 | $BINlastmod_time = str_pad(decbin($dir['lastmod_time'][1]), 16, '0', STR_PAD_LEFT); |
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427 | $lastmod_dateY = bindec(substr($BINlastmod_date, 0, 7))+1980; |
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428 | $lastmod_dateM = bindec(substr($BINlastmod_date, 7, 4)); |
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429 | $lastmod_dateD = bindec(substr($BINlastmod_date, 11, 5)); |
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430 | $lastmod_timeH = bindec(substr($BINlastmod_time, 0, 5)); |
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431 | $lastmod_timeM = bindec(substr($BINlastmod_time, 5, 6)); |
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432 | $lastmod_timeS = bindec(substr($BINlastmod_time, 11, 5)); |
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433 | |||
434 | $this->centralDirList[$dir['file_name']] = Array( |
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435 | 'version_madeby'=>$dir['version_madeby'][1], |
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436 | 'version_needed'=>$dir['version_needed'][1], |
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437 | 'general_bit_flag'=>str_pad(decbin($dir['general_bit_flag'][1]), 8, '0', STR_PAD_LEFT), |
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438 | 'compression_method'=>$dir['compression_method'][1], |
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439 | 'lastmod_datetime' =>mktime($lastmod_timeH, $lastmod_timeM, $lastmod_timeS, $lastmod_dateM, $lastmod_dateD, $lastmod_dateY), |
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440 | 'crc-32' =>str_pad(dechex(ord($dir['crc-32'][3])), 2, '0', STR_PAD_LEFT). |
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441 | str_pad(dechex(ord($dir['crc-32'][2])), 2, '0', STR_PAD_LEFT). |
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442 | str_pad(dechex(ord($dir['crc-32'][1])), 2, '0', STR_PAD_LEFT). |
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443 | str_pad(dechex(ord($dir['crc-32'][0])), 2, '0', STR_PAD_LEFT), |
||
444 | 'compressed_size'=>$dir['compressed_size'][1], |
||
445 | 'uncompressed_size'=>$dir['uncompressed_size'][1], |
||
446 | 'disk_number_start'=>$dir['disk_number_start'][1], |
||
447 | 'internal_attributes'=>$dir['internal_attributes'][1], |
||
448 | 'external_attributes1'=>$dir['external_attributes1'][1], |
||
449 | 'external_attributes2'=>$dir['external_attributes2'][1], |
||
450 | 'relative_offset'=>$dir['relative_offset'][1], |
||
451 | 'file_name'=>$dir['file_name'], |
||
452 | 'extra_field'=>$dir['extra_field'], |
||
453 | 'file_comment'=>$dir['file_comment'], |
||
454 | ); |
||
455 | $signature = fread($fh, 4); |
||
456 | } |
||
457 | |||
458 | // If loaded centralDirs, then try to identify the offsetPosition of the compressed data. |
||
459 | if($this->centralDirList) foreach($this->centralDirList as $filename=>$details){ |
||
460 | $i = $this->_getFileHeaderInformation($fh, $details['relative_offset']); |
||
461 | $this->compressedList[$filename]['file_name'] = $filename; |
||
462 | $this->compressedList[$filename]['compression_method'] = $details['compression_method']; |
||
463 | $this->compressedList[$filename]['version_needed'] = $details['version_needed']; |
||
464 | $this->compressedList[$filename]['lastmod_datetime'] = $details['lastmod_datetime']; |
||
465 | $this->compressedList[$filename]['crc-32'] = $details['crc-32']; |
||
466 | $this->compressedList[$filename]['compressed_size'] = $details['compressed_size']; |
||
467 | $this->compressedList[$filename]['uncompressed_size'] = $details['uncompressed_size']; |
||
468 | $this->compressedList[$filename]['lastmod_datetime'] = $details['lastmod_datetime']; |
||
469 | $this->compressedList[$filename]['extra_field'] = $i['extra_field']; |
||
470 | $this->compressedList[$filename]['contents-startOffset']=$i['contents-startOffset']; |
||
471 | if(strtolower($stopOnFile) == strtolower($filename)) |
||
472 | break; |
||
473 | } |
||
474 | return true; |
||
475 | } |
||
476 | } |
||
477 | return false; |
||
478 | } |
||
479 | Function _loadFileListBySignatures(&$fh, $stopOnFile=false){ |
||
480 | fseek($fh, 0); |
||
481 | |||
482 | $return = false; |
||
483 | for(;;){ |
||
484 | $details = $this->_getFileHeaderInformation($fh); |
||
485 | if(!$details){ |
||
486 | $this->debugMsg(1, "Invalid signature. Trying to verify if is old style Data Descriptor..."); |
||
487 | fseek($fh, 12 - 4, SEEK_CUR); // 12: Data descriptor - 4: Signature (that will be read again) |
||
488 | $details = $this->_getFileHeaderInformation($fh); |
||
489 | } |
||
490 | if(!$details){ |
||
491 | $this->debugMsg(1, "Still invalid signature. Probably reached the end of the file."); |
||
492 | break; |
||
493 | } |
||
494 | $filename = $details['file_name']; |
||
495 | $this->compressedList[$filename] = $details; |
||
496 | $return = true; |
||
497 | if(strtolower($stopOnFile) == strtolower($filename)) |
||
498 | break; |
||
499 | } |
||
500 | |||
501 | return $return; |
||
502 | } |
||
503 | Function _getFileHeaderInformation(&$fh, $startOffset=false){ |
||
504 | if($startOffset !== false) |
||
505 | fseek($fh, $startOffset); |
||
506 | |||
507 | $signature = fread($fh, 4); |
||
508 | if($signature == $this->zipSignature){ |
||
509 | # $this->debugMsg(1, "Zip Signature!"); |
||
510 | |||
511 | // Get information about the zipped file |
||
512 | $file['version_needed'] = unpack("v", fread($fh, 2)); // version needed to extract |
||
513 | $file['general_bit_flag'] = unpack("v", fread($fh, 2)); // general purpose bit flag |
||
514 | $file['compression_method'] = unpack("v", fread($fh, 2)); // compression method |
||
515 | $file['lastmod_time'] = unpack("v", fread($fh, 2)); // last mod file time |
||
516 | $file['lastmod_date'] = unpack("v", fread($fh, 2)); // last mod file date |
||
517 | $file['crc-32'] = fread($fh, 4); // crc-32 |
||
518 | $file['compressed_size'] = unpack("V", fread($fh, 4)); // compressed size |
||
519 | $file['uncompressed_size'] = unpack("V", fread($fh, 4)); // uncompressed size |
||
520 | $fileNameLength = unpack("v", fread($fh, 2)); // filename length |
||
521 | $extraFieldLength = unpack("v", fread($fh, 2)); // extra field length |
||
522 | $file['file_name'] = fread($fh, $fileNameLength[1]); // filename |
||
523 | $file['extra_field'] = $extraFieldLength[1]?fread($fh, $extraFieldLength[1]):''; // extra field |
||
524 | $file['contents-startOffset']= ftell($fh); |
||
525 | |||
526 | // Bypass the whole compressed contents, and look for the next file |
||
527 | fseek($fh, $file['compressed_size'][1], SEEK_CUR); |
||
528 | |||
529 | // Convert the date and time, from MS-DOS format to UNIX Timestamp |
||
530 | $BINlastmod_date = str_pad(decbin($file['lastmod_date'][1]), 16, '0', STR_PAD_LEFT); |
||
531 | $BINlastmod_time = str_pad(decbin($file['lastmod_time'][1]), 16, '0', STR_PAD_LEFT); |
||
532 | $lastmod_dateY = bindec(substr($BINlastmod_date, 0, 7))+1980; |
||
533 | $lastmod_dateM = bindec(substr($BINlastmod_date, 7, 4)); |
||
534 | $lastmod_dateD = bindec(substr($BINlastmod_date, 11, 5)); |
||
535 | $lastmod_timeH = bindec(substr($BINlastmod_time, 0, 5)); |
||
536 | $lastmod_timeM = bindec(substr($BINlastmod_time, 5, 6)); |
||
537 | $lastmod_timeS = bindec(substr($BINlastmod_time, 11, 5)); |
||
538 | |||
539 | // Mount file table |
||
540 | $i = Array( |
||
541 | 'file_name' =>$file['file_name'], |
||
542 | 'compression_method'=>$file['compression_method'][1], |
||
543 | 'version_needed' =>$file['version_needed'][1], |
||
544 | 'lastmod_datetime' =>mktime($lastmod_timeH, $lastmod_timeM, $lastmod_timeS, $lastmod_dateM, $lastmod_dateD, $lastmod_dateY), |
||
545 | 'crc-32' =>str_pad(dechex(ord($file['crc-32'][3])), 2, '0', STR_PAD_LEFT). |
||
546 | str_pad(dechex(ord($file['crc-32'][2])), 2, '0', STR_PAD_LEFT). |
||
547 | str_pad(dechex(ord($file['crc-32'][1])), 2, '0', STR_PAD_LEFT). |
||
548 | str_pad(dechex(ord($file['crc-32'][0])), 2, '0', STR_PAD_LEFT), |
||
549 | 'compressed_size' =>$file['compressed_size'][1], |
||
550 | 'uncompressed_size' =>$file['uncompressed_size'][1], |
||
551 | 'extra_field' =>$file['extra_field'], |
||
552 | 'general_bit_flag' =>str_pad(decbin($file['general_bit_flag'][1]), 8, '0', STR_PAD_LEFT), |
||
553 | 'contents-startOffset'=>$file['contents-startOffset'] |
||
554 | ); |
||
555 | return $i; |
||
556 | } |
||
557 | return false; |
||
558 | } |
||
559 | } |