1 | <?php
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2 | /**
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3 | *
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4 | * @package phpBB3
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5 | * @version $Id$
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6 | * @copyright (c) 2005 phpBB Group
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7 | * @license http://opensource.org/licenses/gpl-license.php GNU Public License
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8 | *
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9 | */
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10 |
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11 | /**
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12 | * @ignore
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13 | */
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14 | if (!defined('IN_PHPBB'))
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15 | {
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16 | exit;
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17 | }
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18 |
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19 | /**
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20 | * Class for handling archives (compression/decompression)
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21 | * @package phpBB3
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22 | */
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23 | class compress
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24 | {
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25 | var $fp = 0;
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26 |
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27 | /**
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28 | * Add file to archive
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29 | */
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30 | function add_file($src, $src_rm_prefix = '', $src_add_prefix = '', $skip_files = '')
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31 | {
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32 | global $phpbb_root_path;
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33 |
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34 | $skip_files = explode(',', $skip_files);
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35 |
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36 | // Remove rm prefix from src path
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37 | $src_path = ($src_rm_prefix) ? preg_replace('#^(' . preg_quote($src_rm_prefix, '#') . ')#', '', $src) : $src;
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38 | // Add src prefix
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39 | $src_path = ($src_add_prefix) ? ($src_add_prefix . ((substr($src_add_prefix, -1) != '/') ? '/' : '') . $src_path) : $src_path;
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40 | // Remove initial "/" if present
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41 | $src_path = (substr($src_path, 0, 1) == '/') ? substr($src_path, 1) : $src_path;
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42 |
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43 | if (is_file($phpbb_root_path . $src))
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44 | {
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45 | $this->data($src_path, file_get_contents("$phpbb_root_path$src"), false, stat("$phpbb_root_path$src"));
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46 | }
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47 | else if (is_dir($phpbb_root_path . $src))
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48 | {
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49 | // Clean up path, add closing / if not present
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50 | $src_path = ($src_path && substr($src_path, -1) != '/') ? $src_path . '/' : $src_path;
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51 |
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52 | $filelist = array();
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53 | $filelist = filelist("$phpbb_root_path$src", '', '*');
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54 | krsort($filelist);
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55 |
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56 | if ($src_path)
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57 | {
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58 | $this->data($src_path, '', true, stat("$phpbb_root_path$src"));
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59 | }
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60 |
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61 | foreach ($filelist as $path => $file_ary)
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62 | {
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63 | if ($path)
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64 | {
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65 | // Same as for src_path
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66 | $path = (substr($path, 0, 1) == '/') ? substr($path, 1) : $path;
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67 | $path = ($path && substr($path, -1) != '/') ? $path . '/' : $path;
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68 |
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69 | $this->data("$src_path$path", '', true, stat("$phpbb_root_path$src$path"));
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70 | }
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71 |
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72 | foreach ($file_ary as $file)
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73 | {
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74 | if (in_array($path . $file, $skip_files))
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75 | {
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76 | continue;
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77 | }
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78 |
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79 | $this->data("$src_path$path$file", file_get_contents("$phpbb_root_path$src$path$file"), false, stat("$phpbb_root_path$src$path$file"));
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80 | }
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81 | }
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82 | }
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83 | else
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84 | {
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85 | // $src does not exist
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86 | return false;
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87 | }
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88 |
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89 | return true;
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90 | }
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91 |
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92 | /**
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93 | * Add custom file (the filepath will not be adjusted)
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94 | */
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95 | function add_custom_file($src, $filename)
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96 | {
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97 | if (!file_exists($src))
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98 | {
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99 | return false;
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100 | }
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101 |
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102 | $this->data($filename, file_get_contents($src), false, stat($src));
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103 | return true;
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104 | }
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105 |
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106 | /**
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107 | * Add file data
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108 | */
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109 | function add_data($src, $name)
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110 | {
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111 | $stat = array();
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112 | $stat[2] = 436; //384
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113 | $stat[4] = $stat[5] = 0;
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114 | $stat[7] = strlen($src);
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115 | $stat[9] = time();
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116 | $this->data($name, $src, false, $stat);
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117 | return true;
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118 | }
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119 |
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120 | /**
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121 | * Return available methods
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122 | */
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123 | function methods()
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124 | {
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125 | $methods = array('.tar');
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126 | $available_methods = array('.tar.gz' => 'zlib', '.tar.bz2' => 'bz2', '.zip' => 'zlib');
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127 |
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128 | foreach ($available_methods as $type => $module)
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129 | {
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130 | if (!@extension_loaded($module))
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131 | {
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132 | continue;
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133 | }
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134 | $methods[] = $type;
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135 | }
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136 |
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137 | return $methods;
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138 | }
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139 | }
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140 |
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141 | /**
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142 | * Zip creation class from phpMyAdmin 2.3.0 (c) Tobias Ratschiller, Olivier Müller, Loïc Chapeaux,
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143 | * Marc Delisle, http://www.phpmyadmin.net/
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144 | *
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145 | * Zip extraction function by Alexandre Tedeschi, alexandrebr at gmail dot com
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146 | *
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147 | * Modified extensively by psoTFX and DavidMJ, (c) phpBB Group, 2003
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148 | *
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149 | * Based on work by Eric Mueller and Denis125
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150 | * Official ZIP file format: http://www.pkware.com/appnote.txt
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151 | *
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152 | * @package phpBB3
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153 | */
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154 | class compress_zip extends compress
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155 | {
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156 | var $datasec = array();
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157 | var $ctrl_dir = array();
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158 | var $eof_cdh = "\x50\x4b\x05\x06\x00\x00\x00\x00";
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159 |
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160 | var $old_offset = 0;
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161 | var $datasec_len = 0;
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162 |
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163 | /**
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164 | * Constructor
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165 | */
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166 | function compress_zip($mode, $file)
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167 | {
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168 | $this->fp = @fopen($file, $mode . 'b');
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169 |
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170 | if (!$this->fp)
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171 | {
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172 | trigger_error('Unable to open file ' . $file . ' [' . $mode . 'b]');
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173 | }
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174 | }
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175 |
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176 | /**
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177 | * Convert unix to dos time
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178 | */
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179 | function unix_to_dos_time($time)
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180 | {
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181 | $timearray = (!$time) ? getdate() : getdate($time);
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182 |
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183 | if ($timearray['year'] < 1980)
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184 | {
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185 | $timearray['year'] = 1980;
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186 | $timearray['mon'] = $timearray['mday'] = 1;
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187 | $timearray['hours'] = $timearray['minutes'] = $timearray['seconds'] = 0;
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188 | }
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189 |
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190 | return (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) | ($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1);
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191 | }
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192 |
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193 | /**
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194 | * Extract archive
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195 | */
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196 | function extract($dst)
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197 | {
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198 | // Loop the file, looking for files and folders
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199 | $dd_try = false;
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200 | rewind($this->fp);
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201 |
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202 | while (!feof($this->fp))
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203 | {
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204 | // Check if the signature is valid...
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205 | $signature = fread($this->fp, 4);
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206 |
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207 | switch ($signature)
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208 | {
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209 | // 'Local File Header'
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210 | case "\x50\x4b\x03\x04":
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211 | // Lets get everything we need.
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212 | // We don't store the version needed to extract, the general purpose bit flag or the date and time fields
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213 | $data = unpack("@4/vc_method/@10/Vcrc/Vc_size/Vuc_size/vname_len/vextra_field", fread($this->fp, 26));
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214 | $file_name = fread($this->fp, $data['name_len']); // filename
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215 |
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216 | if ($data['extra_field'])
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217 | {
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218 | fread($this->fp, $data['extra_field']); // extra field
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219 | }
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220 |
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221 | $target_filename = "$dst$file_name";
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222 |
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223 | if (!$data['uc_size'] && !$data['crc'] && substr($file_name, -1, 1) == '/')
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224 | {
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225 | if (!is_dir($target_filename))
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226 | {
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227 | $str = '';
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228 | $folders = explode('/', $target_filename);
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229 |
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230 | // Create and folders and subfolders if they do not exist
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231 | foreach ($folders as $folder)
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232 | {
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233 | $folder = trim($folder);
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234 | if (!$folder)
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235 | {
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236 | continue;
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237 | }
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238 |
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239 | $str = (!empty($str)) ? $str . '/' . $folder : $folder;
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240 | if (!is_dir($str))
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241 | {
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242 | if (!@mkdir($str, 0777))
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243 | {
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244 | trigger_error("Could not create directory $folder");
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245 | }
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246 | phpbb_chmod($str, CHMOD_READ | CHMOD_WRITE);
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247 | }
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248 | }
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249 | }
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250 | // This is a directory, we are not writting files
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251 | continue;
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252 | }
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253 | else
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254 | {
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255 | // Some archivers are punks, they don't include folders in their archives!
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256 | $str = '';
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257 | $folders = explode('/', pathinfo($target_filename, PATHINFO_DIRNAME));
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258 |
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259 | // Create and folders and subfolders if they do not exist
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260 | foreach ($folders as $folder)
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261 | {
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262 | $folder = trim($folder);
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263 | if (!$folder)
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264 | {
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265 | continue;
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266 | }
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267 |
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268 | $str = (!empty($str)) ? $str . '/' . $folder : $folder;
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269 | if (!is_dir($str))
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270 | {
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271 | if (!@mkdir($str, 0777))
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272 | {
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273 | trigger_error("Could not create directory $folder");
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274 | }
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275 | phpbb_chmod($str, CHMOD_READ | CHMOD_WRITE);
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276 | }
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277 | }
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278 | }
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279 |
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280 | if (!$data['uc_size'])
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281 | {
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282 | $content = '';
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283 | }
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284 | else
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285 | {
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286 | $content = fread($this->fp, $data['c_size']);
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287 | }
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288 |
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289 | $fp = fopen($target_filename, "w");
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290 |
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291 | switch ($data['c_method'])
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292 | {
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293 | case 0:
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294 | // Not compressed
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295 | fwrite($fp, $content);
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296 | break;
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297 |
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298 | case 8:
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299 | // Deflate
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300 | fwrite($fp, gzinflate($content, $data['uc_size']));
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301 | break;
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302 |
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303 | case 12:
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304 | // Bzip2
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305 | fwrite($fp, bzdecompress($content));
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306 | break;
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307 | }
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308 |
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309 | fclose($fp);
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310 | break;
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311 |
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312 | // We hit the 'Central Directory Header', we can stop because nothing else in here requires our attention
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313 | // or we hit the end of the central directory record, we can safely end the loop as we are totally finished with looking for files and folders
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314 | case "\x50\x4b\x01\x02":
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315 | // This case should simply never happen.. but it does exist..
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316 | case "\x50\x4b\x05\x06":
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317 | break 2;
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318 |
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319 | // 'Packed to Removable Disk', ignore it and look for the next signature...
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320 | case 'PK00':
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321 | continue 2;
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322 |
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323 | // We have encountered a header that is weird. Lets look for better data...
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324 | default:
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325 | if (!$dd_try)
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326 | {
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327 | // Unexpected header. Trying to detect wrong placed 'Data Descriptor';
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328 | $dd_try = true;
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329 | fseek($this->fp, 8, SEEK_CUR); // Jump over 'crc-32'(4) 'compressed-size'(4), 'uncompressed-size'(4)
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330 | continue 2;
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331 | }
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332 | trigger_error("Unexpected header, ending loop");
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333 | break 2;
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334 | }
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335 |
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336 | $dd_try = false;
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337 | }
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338 | }
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339 |
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340 | /**
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341 | * Close archive
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342 | */
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343 | function close()
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344 | {
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345 | // Write out central file directory and footer ... if it exists
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346 | if (sizeof($this->ctrl_dir))
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347 | {
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348 | fwrite($this->fp, $this->file());
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349 | }
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350 | fclose($this->fp);
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351 | }
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352 |
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353 | /**
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354 | * Create the structures ... note we assume version made by is MSDOS
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355 | */
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356 | function data($name, $data, $is_dir = false, $stat)
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357 | {
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358 | $name = str_replace('\\', '/', $name);
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359 |
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360 | $hexdtime = pack('V', $this->unix_to_dos_time($stat[9]));
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361 |
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362 | if ($is_dir)
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363 | {
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364 | $unc_len = $c_len = $crc = 0;
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365 | $zdata = '';
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366 | $var_ext = 10;
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367 | }
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368 | else
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369 | {
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370 | $unc_len = strlen($data);
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371 | $crc = crc32($data);
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372 | $zdata = gzdeflate($data);
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373 | $c_len = strlen($zdata);
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374 | $var_ext = 20;
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375 |
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376 | // Did we compress? No, then use data as is
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377 | if ($c_len >= $unc_len)
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378 | {
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379 | $zdata = $data;
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380 | $c_len = $unc_len;
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381 | $var_ext = 10;
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382 | }
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383 | }
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384 | unset($data);
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385 |
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386 | // If we didn't compress set method to store, else deflate
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387 | $c_method = ($c_len == $unc_len) ? "\x00\x00" : "\x08\x00";
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388 |
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389 | // Are we a file or a directory? Set archive for file
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390 | $attrib = ($is_dir) ? 16 : 32;
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391 |
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392 | // File Record Header
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393 | $fr = "\x50\x4b\x03\x04"; // Local file header 4bytes
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394 | $fr .= pack('v', $var_ext); // ver needed to extract 2bytes
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395 | $fr .= "\x00\x00"; // gen purpose bit flag 2bytes
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396 | $fr .= $c_method; // compression method 2bytes
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397 | $fr .= $hexdtime; // last mod time and date 2+2bytes
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398 | $fr .= pack('V', $crc); // crc32 4bytes
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399 | $fr .= pack('V', $c_len); // compressed filesize 4bytes
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400 | $fr .= pack('V', $unc_len); // uncompressed filesize 4bytes
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401 | $fr .= pack('v', strlen($name));// length of filename 2bytes
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402 |
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403 | $fr .= pack('v', 0); // extra field length 2bytes
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404 | $fr .= $name;
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405 | $fr .= $zdata;
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406 | unset($zdata);
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407 |
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408 | $this->datasec_len += strlen($fr);
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409 |
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410 | // Add data to file ... by writing data out incrementally we save some memory
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411 | fwrite($this->fp, $fr);
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412 | unset($fr);
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413 |
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414 | // Central Directory Header
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415 | $cdrec = "\x50\x4b\x01\x02"; // header 4bytes
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416 | $cdrec .= "\x00\x00"; // version made by
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417 | $cdrec .= pack('v', $var_ext); // version needed to extract
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418 | $cdrec .= "\x00\x00"; // gen purpose bit flag
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419 | $cdrec .= $c_method; // compression method
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420 | $cdrec .= $hexdtime; // last mod time & date
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421 | $cdrec .= pack('V', $crc); // crc32
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422 | $cdrec .= pack('V', $c_len); // compressed filesize
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423 | $cdrec .= pack('V', $unc_len); // uncompressed filesize
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424 | $cdrec .= pack('v', strlen($name)); // length of filename
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425 | $cdrec .= pack('v', 0); // extra field length
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426 | $cdrec .= pack('v', 0); // file comment length
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427 | $cdrec .= pack('v', 0); // disk number start
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428 | $cdrec .= pack('v', 0); // internal file attributes
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429 | $cdrec .= pack('V', $attrib); // external file attributes
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430 | $cdrec .= pack('V', $this->old_offset); // relative offset of local header
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431 | $cdrec .= $name;
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432 |
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433 | // Save to central directory
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434 | $this->ctrl_dir[] = $cdrec;
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435 |
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436 | $this->old_offset = $this->datasec_len;
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437 | }
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438 |
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439 | /**
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440 | * file
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441 | */
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442 | function file()
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443 | {
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444 | $ctrldir = implode('', $this->ctrl_dir);
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445 |
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446 | return $ctrldir . $this->eof_cdh .
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447 | pack('v', sizeof($this->ctrl_dir)) . // total # of entries "on this disk"
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448 | pack('v', sizeof($this->ctrl_dir)) . // total # of entries overall
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449 | pack('V', strlen($ctrldir)) . // size of central dir
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450 | pack('V', $this->datasec_len) . // offset to start of central dir
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451 | "\x00\x00"; // .zip file comment length
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452 | }
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453 |
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454 | /**
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455 | * Download archive
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456 | */
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457 | function download($filename, $download_name = false)
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458 | {
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459 | global $phpbb_root_path;
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460 |
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461 | if ($download_name === false)
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462 | {
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463 | $download_name = $filename;
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464 | }
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465 |
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466 | $mimetype = 'application/zip';
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467 |
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468 | header('Pragma: no-cache');
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469 | header("Content-Type: $mimetype; name=\"$download_name.zip\"");
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470 | header("Content-disposition: attachment; filename=$download_name.zip");
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471 |
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472 | $fp = @fopen("{$phpbb_root_path}store/$filename.zip", 'rb');
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473 | if ($fp)
|
---|
474 | {
|
---|
475 | while ($buffer = fread($fp, 1024))
|
---|
476 | {
|
---|
477 | echo $buffer;
|
---|
478 | }
|
---|
479 | fclose($fp);
|
---|
480 | }
|
---|
481 | }
|
---|
482 | }
|
---|
483 |
|
---|
484 | /**
|
---|
485 | * Tar/tar.gz compression routine
|
---|
486 | * Header/checksum creation derived from tarfile.pl, (c) Tom Horsley, 1994
|
---|
487 | *
|
---|
488 | * @package phpBB3
|
---|
489 | */
|
---|
490 | class compress_tar extends compress
|
---|
491 | {
|
---|
492 | var $isgz = false;
|
---|
493 | var $isbz = false;
|
---|
494 | var $filename = '';
|
---|
495 | var $mode = '';
|
---|
496 | var $type = '';
|
---|
497 | var $wrote = false;
|
---|
498 |
|
---|
499 | /**
|
---|
500 | * Constructor
|
---|
501 | */
|
---|
502 | function compress_tar($mode, $file, $type = '')
|
---|
503 | {
|
---|
504 | $type = (!$type) ? $file : $type;
|
---|
505 | $this->isgz = (strpos($type, '.tar.gz') !== false || strpos($type, '.tgz') !== false) ? true : false;
|
---|
506 | $this->isbz = (strpos($type, '.tar.bz2') !== false) ? true : false;
|
---|
507 |
|
---|
508 | $this->mode = &$mode;
|
---|
509 | $this->file = &$file;
|
---|
510 | $this->type = &$type;
|
---|
511 | $this->open();
|
---|
512 | }
|
---|
513 |
|
---|
514 | /**
|
---|
515 | * Extract archive
|
---|
516 | */
|
---|
517 | function extract($dst)
|
---|
518 | {
|
---|
519 | $fzread = ($this->isbz && function_exists('bzread')) ? 'bzread' : (($this->isgz && @extension_loaded('zlib')) ? 'gzread' : 'fread');
|
---|
520 |
|
---|
521 | // Run through the file and grab directory entries
|
---|
522 | while ($buffer = $fzread($this->fp, 512))
|
---|
523 | {
|
---|
524 | $tmp = unpack('A6magic', substr($buffer, 257, 6));
|
---|
525 |
|
---|
526 | if (trim($tmp['magic']) == 'ustar')
|
---|
527 | {
|
---|
528 | $tmp = unpack('A100name', $buffer);
|
---|
529 | $filename = trim($tmp['name']);
|
---|
530 |
|
---|
531 | $tmp = unpack('Atype', substr($buffer, 156, 1));
|
---|
532 | $filetype = (int) trim($tmp['type']);
|
---|
533 |
|
---|
534 | $tmp = unpack('A12size', substr($buffer, 124, 12));
|
---|
535 | $filesize = octdec((int) trim($tmp['size']));
|
---|
536 |
|
---|
537 | $target_filename = "$dst$filename";
|
---|
538 |
|
---|
539 | if ($filetype == 5)
|
---|
540 | {
|
---|
541 | if (!is_dir($target_filename))
|
---|
542 | {
|
---|
543 | $str = '';
|
---|
544 | $folders = explode('/', $target_filename);
|
---|
545 |
|
---|
546 | // Create and folders and subfolders if they do not exist
|
---|
547 | foreach ($folders as $folder)
|
---|
548 | {
|
---|
549 | $folder = trim($folder);
|
---|
550 | if (!$folder)
|
---|
551 | {
|
---|
552 | continue;
|
---|
553 | }
|
---|
554 |
|
---|
555 | $str = (!empty($str)) ? $str . '/' . $folder : $folder;
|
---|
556 | if (!is_dir($str))
|
---|
557 | {
|
---|
558 | if (!@mkdir($str, 0777))
|
---|
559 | {
|
---|
560 | trigger_error("Could not create directory $folder");
|
---|
561 | }
|
---|
562 | phpbb_chmod($str, CHMOD_READ | CHMOD_WRITE);
|
---|
563 | }
|
---|
564 | }
|
---|
565 | }
|
---|
566 | }
|
---|
567 | else if ($filesize >= 0 && ($filetype == 0 || $filetype == "\0"))
|
---|
568 | {
|
---|
569 | // Some archivers are punks, they don't properly order the folders in their archives!
|
---|
570 | $str = '';
|
---|
571 | $folders = explode('/', pathinfo($target_filename, PATHINFO_DIRNAME));
|
---|
572 |
|
---|
573 | // Create and folders and subfolders if they do not exist
|
---|
574 | foreach ($folders as $folder)
|
---|
575 | {
|
---|
576 | $folder = trim($folder);
|
---|
577 | if (!$folder)
|
---|
578 | {
|
---|
579 | continue;
|
---|
580 | }
|
---|
581 |
|
---|
582 | $str = (!empty($str)) ? $str . '/' . $folder : $folder;
|
---|
583 | if (!is_dir($str))
|
---|
584 | {
|
---|
585 | if (!@mkdir($str, 0777))
|
---|
586 | {
|
---|
587 | trigger_error("Could not create directory $folder");
|
---|
588 | }
|
---|
589 | phpbb_chmod($str, CHMOD_READ | CHMOD_WRITE);
|
---|
590 | }
|
---|
591 | }
|
---|
592 |
|
---|
593 | // Write out the files
|
---|
594 | if (!($fp = fopen($target_filename, 'wb')))
|
---|
595 | {
|
---|
596 | trigger_error("Couldn't create file $filename");
|
---|
597 | }
|
---|
598 | phpbb_chmod($target_filename, CHMOD_READ);
|
---|
599 |
|
---|
600 | // Grab the file contents
|
---|
601 | fwrite($fp, ($filesize) ? $fzread($this->fp, ($filesize + 511) &~ 511) : '', $filesize);
|
---|
602 | fclose($fp);
|
---|
603 | }
|
---|
604 | }
|
---|
605 | }
|
---|
606 | }
|
---|
607 |
|
---|
608 | /**
|
---|
609 | * Close archive
|
---|
610 | */
|
---|
611 | function close()
|
---|
612 | {
|
---|
613 | $fzclose = ($this->isbz && function_exists('bzclose')) ? 'bzclose' : (($this->isgz && @extension_loaded('zlib')) ? 'gzclose' : 'fclose');
|
---|
614 |
|
---|
615 | if ($this->wrote)
|
---|
616 | {
|
---|
617 | $fzwrite = ($this->isbz && function_exists('bzwrite')) ? 'bzwrite' : (($this->isgz && @extension_loaded('zlib')) ? 'gzwrite' : 'fwrite');
|
---|
618 |
|
---|
619 | // The end of a tar archive ends in two records of all NULLs (1024 bytes of \0)
|
---|
620 | $fzwrite($this->fp, str_repeat("\0", 1024));
|
---|
621 | }
|
---|
622 |
|
---|
623 | $fzclose($this->fp);
|
---|
624 | }
|
---|
625 |
|
---|
626 | /**
|
---|
627 | * Create the structures
|
---|
628 | */
|
---|
629 | function data($name, $data, $is_dir = false, $stat)
|
---|
630 | {
|
---|
631 | $this->wrote = true;
|
---|
632 | $fzwrite = ($this->isbz && function_exists('bzwrite')) ? 'bzwrite' : (($this->isgz && @extension_loaded('zlib')) ? 'gzwrite' : 'fwrite');
|
---|
633 |
|
---|
634 | $typeflag = ($is_dir) ? '5' : '';
|
---|
635 |
|
---|
636 | // This is the header data, it contains all the info we know about the file or folder that we are about to archive
|
---|
637 | $header = '';
|
---|
638 | $header .= pack('a100', $name); // file name
|
---|
639 | $header .= pack('a8', sprintf("%07o", $stat[2])); // file mode
|
---|
640 | $header .= pack('a8', sprintf("%07o", $stat[4])); // owner id
|
---|
641 | $header .= pack('a8', sprintf("%07o", $stat[5])); // group id
|
---|
642 | $header .= pack('a12', sprintf("%011o", $stat[7])); // file size
|
---|
643 | $header .= pack('a12', sprintf("%011o", $stat[9])); // last mod time
|
---|
644 |
|
---|
645 | // Checksum
|
---|
646 | $checksum = 0;
|
---|
647 | for ($i = 0; $i < 148; $i++)
|
---|
648 | {
|
---|
649 | $checksum += ord($header[$i]);
|
---|
650 | }
|
---|
651 |
|
---|
652 | // We precompute the rest of the hash, this saves us time in the loop and allows us to insert our hash without resorting to string functions
|
---|
653 | $checksum += 2415 + (($is_dir) ? 53 : 0);
|
---|
654 |
|
---|
655 | $header .= pack('a8', sprintf("%07o", $checksum)); // checksum
|
---|
656 | $header .= pack('a1', $typeflag); // link indicator
|
---|
657 | $header .= pack('a100', ''); // name of linked file
|
---|
658 | $header .= pack('a6', 'ustar'); // ustar indicator
|
---|
659 | $header .= pack('a2', '00'); // ustar version
|
---|
660 | $header .= pack('a32', 'Unknown'); // owner name
|
---|
661 | $header .= pack('a32', 'Unknown'); // group name
|
---|
662 | $header .= pack('a8', ''); // device major number
|
---|
663 | $header .= pack('a8', ''); // device minor number
|
---|
664 | $header .= pack('a155', ''); // filename prefix
|
---|
665 | $header .= pack('a12', ''); // end
|
---|
666 |
|
---|
667 | // This writes the entire file in one shot. Header, followed by data and then null padded to a multiple of 512
|
---|
668 | $fzwrite($this->fp, $header . (($stat[7] !== 0 && !$is_dir) ? $data . str_repeat("\0", (($stat[7] + 511) &~ 511) - $stat[7]) : ''));
|
---|
669 | unset($data);
|
---|
670 | }
|
---|
671 |
|
---|
672 | /**
|
---|
673 | * Open archive
|
---|
674 | */
|
---|
675 | function open()
|
---|
676 | {
|
---|
677 | $fzopen = ($this->isbz && function_exists('bzopen')) ? 'bzopen' : (($this->isgz && @extension_loaded('zlib')) ? 'gzopen' : 'fopen');
|
---|
678 | $this->fp = @$fzopen($this->file, $this->mode . (($fzopen == 'bzopen') ? '' : 'b') . (($fzopen == 'gzopen') ? '9' : ''));
|
---|
679 |
|
---|
680 | if (!$this->fp)
|
---|
681 | {
|
---|
682 | trigger_error('Unable to open file ' . $this->file . ' [' . $fzopen . ' - ' . $this->mode . 'b]');
|
---|
683 | }
|
---|
684 | }
|
---|
685 |
|
---|
686 | /**
|
---|
687 | * Download archive
|
---|
688 | */
|
---|
689 | function download($filename, $download_name = false)
|
---|
690 | {
|
---|
691 | global $phpbb_root_path;
|
---|
692 |
|
---|
693 | if ($download_name === false)
|
---|
694 | {
|
---|
695 | $download_name = $filename;
|
---|
696 | }
|
---|
697 |
|
---|
698 | switch ($this->type)
|
---|
699 | {
|
---|
700 | case '.tar':
|
---|
701 | $mimetype = 'application/x-tar';
|
---|
702 | break;
|
---|
703 |
|
---|
704 | case '.tar.gz':
|
---|
705 | $mimetype = 'application/x-gzip';
|
---|
706 | break;
|
---|
707 |
|
---|
708 | case '.tar.bz2':
|
---|
709 | $mimetype = 'application/x-bzip2';
|
---|
710 | break;
|
---|
711 |
|
---|
712 | default:
|
---|
713 | $mimetype = 'application/octet-stream';
|
---|
714 | break;
|
---|
715 | }
|
---|
716 |
|
---|
717 | header('Pragma: no-cache');
|
---|
718 | header("Content-Type: $mimetype; name=\"$download_name$this->type\"");
|
---|
719 | header("Content-disposition: attachment; filename=$download_name$this->type");
|
---|
720 |
|
---|
721 | $fp = @fopen("{$phpbb_root_path}store/$filename$this->type", 'rb');
|
---|
722 | if ($fp)
|
---|
723 | {
|
---|
724 | while ($buffer = fread($fp, 1024))
|
---|
725 | {
|
---|
726 | echo $buffer;
|
---|
727 | }
|
---|
728 | fclose($fp);
|
---|
729 | }
|
---|
730 | }
|
---|
731 | }
|
---|
732 |
|
---|
733 | ?>
|
---|