ÿØÿà JFIF    ÿÛ „  ( %"1!%)+...383,7(-.+  -+++--++++---+-+-----+---------------+---+-++7-----ÿÀ  ß â" ÿÄ     ÿÄ H    !1AQaq"‘¡2B±ÁÑð#R“Ò Tbr‚²á3csƒ’ÂñDS¢³$CÿÄ   ÿÄ %  !1AQa"23‘ÿÚ   ? ôÿ ¨pŸªáÿ —åYõõ\?àÒü©ŠÄï¨pŸªáÿ —åYõõ\?àÓü©ŠÄá 0Ÿªáÿ Ÿå[úƒ ú®ði~TÁbqÐ8OÕpÿ ƒOò¤Oè`–RÂáœá™êi€ßÉ< FtŸI“öÌ8úDf´°å}“¾œ6  öFá°y¥jñÇh†ˆ¢ã/ÃÐ:ªcÈ "Y¡ðÑl>ÿ ”ÏËte:qž\oäŠe÷󲍷˜HT4&ÿ ÓÐü6ö®¿øþßèô Ÿ•7Ñi’•j|“ñì>b…þS?*Óôÿ ÓÐü*h¥£ír¶ü UãSç‚Ÿ[AÐaè[ûª•õ&õj?†Éö+EzP—WeÒírJFt ‘BŒ†Ï‡%#tE Øz ¥OÛ«!1›üä±Í™%ºÍãö]°î(–:@<‹ŒÊö×òÆt¦ãº+‡¦%ÌÁ²h´OƒJŒtMÜ>ÀÜÊw3Y´•牋4ǍýʏTì>œú=Íwhyë,¾Ôò×õ¿ßÊa»«þˆѪQ|%6ž™A õ%:øj<>É—ÿ Å_ˆCbõ¥š±ý¯Ýƒï…¶|RëócÍf溪“t.СøTÿ *Ä¿-{†çàczůŽ_–^XþŒ±miB[X±d 1,é”zEù»& î9gœf™9Ð'.;—™i}!ôšåîqêÛ٤ёý£½ÆA–àôe"A$˝Úsäÿ ÷Û #°xŸëí(l »ý3—¥5m! rt`†0~'j2(]S¦¦kv,ÚÇ l¦øJA£Šƒ J3E8ÙiŽ:cÉžúeZ°€¯\®kÖ(79«Ž:¯X”¾³Š&¡* ….‰Ž(ÜíŸ2¥ª‡×Hi²TF¤ò[¨íÈRëÉ䢍mgÑ.Ÿ<öäS0í„ǹÁU´f#Vß;Õ–…P@3ío<ä-±»Ž.L|kªÀê›fÂ6@»eu‚|ÓaÞÆŸ…¨ááå>åŠ?cKü6ùTÍÆ”†sĤÚ;H2RÚ†õ\Ö·Ÿn'¾ ñ#ºI¤Å´%çÁ­‚â7›‹qT3Iï¨ÖÚ5I7Ë!ÅOóŸ¶øÝñØôת¦$Tcö‘[«Ö³šÒ';Aþ ¸èíg A2Z"i¸vdÄ÷.iõ®§)¿]¤À†–‡É&ä{V¶iŽ”.Ó×Õÿ û?h¬Mt–íª[ÿ Ñÿ ÌV(í}=ibÔ¡›¥¢±b Lô¥‡piη_Z<‡z§èŒ)iÖwiÇ 2hÙ3·=’d÷8éŽ1¦¸c¤µ€7›7Ø ð\á)} ¹fËí›pAÃL%âc2 í§æQz¿;T8sæ°qø)QFMð‰XŒÂ±N¢aF¨…8¯!U  Z©RÊ ÖPVÄÀÍin™Ì-GˆªÅËŠ›•zË}º±ŽÍFò¹}Uw×#ä5B¤{î}Ð<ÙD é©¤&‡ïDbàÁôMÁ." ¤‡ú*õ'VŽ|¼´Úgllº¼klz[Æüï÷Aób‡Eÿ dÑ»Xx9ÃÜ£ÁT/`¼¸vI±Ýµ·Ë‚“G³þ*Ÿû´r|*}<¨îºœ @¦mÄ’M¹”.œ«Y–|6ÏU¤jç¥ÕÞqO ˜kDÆÁ¨5ÿ š;Њ¦¦€GÙk \ –Þ=â¼=SͧµªS°ÚÍpÜãQűÀõ¬?ÃÁ1Ñ•õZà?hóœ€ L¦l{Y*K˜Ù›zc˜–ˆâ ø+¾ ­-Ök¥%ùEÜA'}ˆ><ÊIè“bpÍ/qÞâvoX€w,\úªò6Z[XdÒæ­@Ö—€$òJí#é>'°Ú ôª˜<)4ryÙ£|óAÅn5žêŸyÒäMÝ2{"}‰–¤l÷ûWX\l¾Á¸góÉOÔ /óñB¤f¸çñ[.P˜ZsÊË*ßT܈§QN¢’¡¨§V¼(Üù*eÕ“”5T¨‹Âê¥FŒã½Dü[8'Ò¥a…Ú¶k7a *•›¼'Ò·\8¨ª\@\õ¢¦íq+DÙrmÎ…_ªæ»ŠÓœ¡¯’Ré9MÅ×D™lælffc+ŒÑ,ý™ÿ ¯þǤ=Å’Á7µ÷ÚÛ/“Ü€ñýã¼àí¾ÕÑ+ƒ,uµMâÀÄbm:ÒÎPæ{˜Gz[ƒ¯«® KHà`ßØŠéí¯P8Aq.C‰ à€kòpj´kN¶qô€…Õ,ÜNŠª-­{Zö’æû44‰sŽè‰îVíRœÕm" 6?³D9¡ÇTíÅꋇ`4«¸ÝÁô ï’ýorqКÇZ«x4Žâéþuïf¹µö[P ,Q£éaX±`PÉÍZ ¸äYúg üAx ’6Lê‚xÝÓ*äQ  Ï’¨hÍ =²,6ï#rÃ<¯–£»ƒ‹,–ê•€ aÛsñ'%Æ"®ÛüìBᝠHÚ3ß°©$“XnœÖ’î2ËTeûìxîß ¦å¿çÉ ðK§þ{‘t‚Ϋ¬jéîZ[ ”š7L¥4VÚCE×]m¤Øy”ä4-dz£œ§¸x.*ãÊÊ b÷•h:©‡¦s`BTÁRû¾g⻩‹jø sF¢àJøFl‘È•Xᓁà~*j¯ +(ÚÕ6-£¯÷GŠØy‚<Ç’.F‹Hœw(+)ÜÜâÈzÄäT§FߘãÏ;DmVœ3Àu@mÚüXÝü•3B¨òÌÁÛ<·ÃÜ z,Ì@õÅ·d2]ü8s÷IôÞ¯^Ç9¢u„~ëAŸï4«M? 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/** * Beginning of central directory record. * * @var string * @since 11.1 */ private $_ctrlDirHeader = "\x50\x4b\x01\x02"; /** * End of central directory record. * * @var string * @since 11.1 */ private $_ctrlDirEnd = "\x50\x4b\x05\x06\x00\x00\x00\x00"; /** * Beginning of file contents. * * @var string * @since 11.1 */ private $_fileHeader = "\x50\x4b\x03\x04"; /** * ZIP file data buffer * * @var string * @since 11.1 */ private $_data = null; /** * ZIP file metadata array * * @var array * @since 11.1 */ private $_metadata = null; /** * Create a ZIP compressed file from an array of file data. * * @param string $archive Path to save archive. * @param array $files Array of files to add to archive. * * @return boolean True if successful. * * @since 11.1 * * @todo Finish Implementation */ public function create($archive, $files) { $contents = array(); $ctrldir = array(); foreach ($files as $file) { $this->_addToZIPFile($file, $contents, $ctrldir); } return $this->_createZIPFile($contents, $ctrldir, $archive); } /** * Extract a ZIP compressed file to a given path * * @param string $archive Path to ZIP archive to extract * @param string $destination Path to extract archive into * @param array $options Extraction options [unused] * * @return boolean True if successful * * @since 11.1 * @throws RuntimeException */ public function extract($archive, $destination, array $options = array()) { if (!is_file($archive)) { return $this->raiseWarning(100, 'Archive does not exist'); } if ($this->hasNativeSupport()) { return $this->extractNative($archive, $destination); } return $this->extractCustom($archive, $destination); } /** * Temporary private method to isolate JError from the extract method * This code should be removed when JError is removed. * * @param int $code The application-internal error code for this error * @param string $msg The error message, which may also be shown the user if need be. * * @return JException JException instance if JError class exists * * @throws RuntimeException if JError class does not exist */ private function raiseWarning($code, $msg) { if (class_exists('JError')) { return JError::raiseWarning($code, $msg); } throw new RuntimeException($msg); } /** * Tests whether this adapter can unpack files on this computer. * * @return boolean True if supported * * @since 11.3 */ public static function isSupported() { return self::hasNativeSupport() || extension_loaded('zlib'); } /** * Method to determine if the server has native zip support for faster handling * * @return boolean True if php has native ZIP support * * @since 11.1 */ public static function hasNativeSupport() { return function_exists('zip_open') && function_exists('zip_read'); } /** * Checks to see if the data is a valid ZIP file. * * @param string &$data ZIP archive data buffer. * * @return boolean True if valid, false if invalid. * * @since 11.1 */ public function checkZipData(&$data) { if (strpos($data, $this->_fileHeader) === false) { return false; } return true; } /** * Extract a ZIP compressed file to a given path using a php based algorithm that only requires zlib support * * @param string $archive Path to ZIP archive to extract. * @param string $destination Path to extract archive into. * * @return mixed True if successful * * @since 11.1 * @throws RuntimeException */ protected function extractCustom($archive, $destination) { $this->_data = null; $this->_metadata = null; if (!extension_loaded('zlib')) { return $this->raiseWarning(100, 'Zlib not supported'); } $this->_data = file_get_contents($archive); if (!$this->_data) { return $this->raiseWarning(100, 'Unable to read archive (zip)'); } if (!$this->_readZipInfo($this->_data)) { return $this->raiseWarning(100, 'Get ZIP Information failed'); } for ($i = 0, $n = count($this->_metadata); $i < $n; $i++) { $lastPathCharacter = substr($this->_metadata[$i]['name'], -1, 1); if ($lastPathCharacter !== '/' && $lastPathCharacter !== '\\') { $buffer = $this->_getFileData($i); $path = JPath::clean($destination . '/' . $this->_metadata[$i]['name']); // Make sure the destination folder exists if (!JFolder::create(dirname($path))) { return $this->raiseWarning(100, 'Unable to create destination'); } if (JFile::write($path, $buffer) === false) { return $this->raiseWarning(100, 'Unable to write entry'); } } } return true; } /** * Extract a ZIP compressed file to a given path using native php api calls for speed * * @param string $archive Path to ZIP archive to extract * @param string $destination Path to extract archive into * * @return boolean True on success * * @since 11.1 * @throws RuntimeException */ protected function extractNative($archive, $destination) { $zip = zip_open($archive); if (!is_resource($zip)) { return $this->raiseWarning(100, 'Unable to open archive'); } // Make sure the destination folder exists if (!JFolder::create($destination)) { return $this->raiseWarning(100, 'Unable to create destination'); } // Read files in the archive while ($file = @zip_read($zip)) { if (!zip_entry_open($zip, $file, 'r')) { return $this->raiseWarning(100, 'Unable to read entry'); } if (substr(zip_entry_name($file), strlen(zip_entry_name($file)) - 1) != '/') { $buffer = zip_entry_read($file, zip_entry_filesize($file)); if (JFile::write($destination . '/' . zip_entry_name($file), $buffer) === false) { return $this->raiseWarning(100, 'Unable to write entry'); } zip_entry_close($file); } } @zip_close($zip); return true; } /** * Get the list of files/data from a ZIP archive buffer. * * 
	 * KEY: Position in zipfile
	 * VALUES: 'attr'  --  File attributes
	 * 'crc'   --  CRC checksum
	 * 'csize' --  Compressed file size
	 * 'date'  --  File modification time
	 * 'name'  --  Filename
	 * 'method'--  Compression method
	 * 'size'  --  Original file size
	 * 'type'  --  File type
	 *
* * @param string &$data The ZIP archive buffer. * * @return boolean True on success * * @since 11.1 * @throws RuntimeException */ private function _readZipInfo(&$data) { $entries = array(); // Find the last central directory header entry $fhLast = strpos($data, $this->_ctrlDirEnd); do { $last = $fhLast; } while (($fhLast = strpos($data, $this->_ctrlDirEnd, $fhLast + 1)) !== false); // Find the central directory offset $offset = 0; if ($last) { $endOfCentralDirectory = unpack( 'vNumberOfDisk/vNoOfDiskWithStartOfCentralDirectory/vNoOfCentralDirectoryEntriesOnDisk/' . 'vTotalCentralDirectoryEntries/VSizeOfCentralDirectory/VCentralDirectoryOffset/vCommentLength', substr($data, $last + 4) ); $offset = $endOfCentralDirectory['CentralDirectoryOffset']; } // Get details from central directory structure. $fhStart = strpos($data, $this->_ctrlDirHeader, $offset); $dataLength = strlen($data); do { if ($dataLength < $fhStart + 31) { return $this->raiseWarning(100, 'Invalid Zip Data'); } $info = unpack('vMethod/VTime/VCRC32/VCompressed/VUncompressed/vLength', substr($data, $fhStart + 10, 20)); $name = substr($data, $fhStart + 46, $info['Length']); $entries[$name] = array( 'attr' => null, 'crc' => sprintf('%08s', dechex($info['CRC32'])), 'csize' => $info['Compressed'], 'date' => null, '_dataStart' => null, 'name' => $name, 'method' => $this->_methods[$info['Method']], '_method' => $info['Method'], 'size' => $info['Uncompressed'], 'type' => null, ); $entries[$name]['date'] = mktime( (($info['Time'] >> 11) & 0x1f), (($info['Time'] >> 5) & 0x3f), (($info['Time'] << 1) & 0x3e), (($info['Time'] >> 21) & 0x07), (($info['Time'] >> 16) & 0x1f), ((($info['Time'] >> 25) & 0x7f) + 1980) ); if ($dataLength < $fhStart + 43) { return $this->raiseWarning(100, 'Invalid ZIP data'); } $info = unpack('vInternal/VExternal/VOffset', substr($data, $fhStart + 36, 10)); $entries[$name]['type'] = ($info['Internal'] & 0x01) ? 'text' : 'binary'; $entries[$name]['attr'] = (($info['External'] & 0x10) ? 'D' : '-') . (($info['External'] & 0x20) ? 'A' : '-') . (($info['External'] & 0x03) ? 'S' : '-') . (($info['External'] & 0x02) ? 'H' : '-') . (($info['External'] & 0x01) ? 'R' : '-'); $entries[$name]['offset'] = $info['Offset']; // Get details from local file header since we have the offset $lfhStart = strpos($data, $this->_fileHeader, $entries[$name]['offset']); if ($dataLength < $lfhStart + 34) { return $this->raiseWarning(100, 'Invalid Zip Data'); } $info = unpack('vMethod/VTime/VCRC32/VCompressed/VUncompressed/vLength/vExtraLength', substr($data, $lfhStart + 8, 25)); $name = substr($data, $lfhStart + 30, $info['Length']); $entries[$name]['_dataStart'] = $lfhStart + 30 + $info['Length'] + $info['ExtraLength']; // Bump the max execution time because not using the built in php zip libs makes this process slow. @set_time_limit(ini_get('max_execution_time')); } while ((($fhStart = strpos($data, $this->_ctrlDirHeader, $fhStart + 46)) !== false)); $this->_metadata = array_values($entries); return true; } /** * Returns the file data for a file by offsest in the ZIP archive * * @param integer $key The position of the file in the archive. * * @return string Uncompressed file data buffer. * * @since 11.1 */ private function _getFileData($key) { $method = $this->_metadata[$key]['_method']; if ($method == 0x12 && !extension_loaded('bz2')) { return ''; } switch ($method) { case 0x8: return gzinflate(substr($this->_data, $this->_metadata[$key]['_dataStart'], $this->_metadata[$key]['csize'])); case 0x0: // Files that aren't compressed. return substr($this->_data, $this->_metadata[$key]['_dataStart'], $this->_metadata[$key]['csize']); case 0x12: return bzdecompress(substr($this->_data, $this->_metadata[$key]['_dataStart'], $this->_metadata[$key]['csize'])); } return ''; } /** * Converts a UNIX timestamp to a 4-byte DOS date and time format * (date in high 2-bytes, time in low 2-bytes allowing magnitude * comparison). * * @param int $unixtime The current UNIX timestamp. * * @return int The current date in a 4-byte DOS format. * * @since 11.1 */ protected function _unix2DOSTime($unixtime = null) { $timearray = (is_null($unixtime)) ? getdate() : getdate($unixtime); if ($timearray['year'] < 1980) { $timearray['year'] = 1980; $timearray['mon'] = 1; $timearray['mday'] = 1; $timearray['hours'] = 0; $timearray['minutes'] = 0; $timearray['seconds'] = 0; } return (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) | ($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1); } /** * Adds a "file" to the ZIP archive. * * @param array &$file File data array to add * @param array &$contents An array of existing zipped files. * @param array &$ctrldir An array of central directory information. * * @return void * * @since 11.1 * * @todo Review and finish implementation */ private function _addToZIPFile(array &$file, array &$contents, array &$ctrldir) { $data = &$file['data']; $name = str_replace('\\', '/', $file['name']); /* See if time/date information has been provided. */ $ftime = null; if (isset($file['time'])) { $ftime = $file['time']; } // Get the hex time. $dtime = dechex($this->_unix2DosTime($ftime)); $hexdtime = chr(hexdec($dtime[6] . $dtime[7])) . chr(hexdec($dtime[4] . $dtime[5])) . chr(hexdec($dtime[2] . $dtime[3])) . chr(hexdec($dtime[0] . $dtime[1])); /* Begin creating the ZIP data. */ $fr = $this->_fileHeader; /* Version needed to extract. */ $fr .= "\x14\x00"; /* General purpose bit flag. */ $fr .= "\x00\x00"; /* Compression method. */ $fr .= "\x08\x00"; /* Last modification time/date. */ $fr .= $hexdtime; /* "Local file header" segment. */ $unc_len = strlen($data); $crc = crc32($data); $zdata = gzcompress($data); $zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2); $c_len = strlen($zdata); /* CRC 32 information. */ $fr .= pack('V', $crc); /* Compressed filesize. */ $fr .= pack('V', $c_len); /* Uncompressed filesize. */ $fr .= pack('V', $unc_len); /* Length of filename. */ $fr .= pack('v', strlen($name)); /* Extra field length. */ $fr .= pack('v', 0); /* File name. */ $fr .= $name; /* "File data" segment. */ $fr .= $zdata; /* Add this entry to array. */ $old_offset = strlen(implode('', $contents)); $contents[] = &$fr; /* Add to central directory record. */ $cdrec = $this->_ctrlDirHeader; /* Version made by. */ $cdrec .= "\x00\x00"; /* Version needed to extract */ $cdrec .= "\x14\x00"; /* General purpose bit flag */ $cdrec .= "\x00\x00"; /* Compression method */ $cdrec .= "\x08\x00"; /* Last mod time/date. */ $cdrec .= $hexdtime; /* CRC 32 information. */ $cdrec .= pack('V', $crc); /* Compressed filesize. */ $cdrec .= pack('V', $c_len); /* Uncompressed filesize. */ $cdrec .= pack('V', $unc_len); /* Length of filename. */ $cdrec .= pack('v', strlen($name)); /* Extra field length. */ $cdrec .= pack('v', 0); /* File comment length. */ $cdrec .= pack('v', 0); /* Disk number start. */ $cdrec .= pack('v', 0); /* Internal file attributes. */ $cdrec .= pack('v', 0); /* External file attributes -'archive' bit set. */ $cdrec .= pack('V', 32); /* Relative offset of local header. */ $cdrec .= pack('V', $old_offset); /* File name. */ $cdrec .= $name; /* Optional extra field, file comment goes here. */ /* Save to central directory array. */ $ctrldir[] = &$cdrec; } /** * Creates the ZIP file. * * Official ZIP file format: https://support.pkware.com/display/PKZIP/APPNOTE * * @param array &$contents An array of existing zipped files. * @param array &$ctrlDir An array of central directory information. * @param string $path The path to store the archive. * * @return boolean True if successful * * @since 11.1 * * @todo Review and finish implementation */ private function _createZIPFile(array &$contents, array &$ctrlDir, $path) { $data = implode('', $contents); $dir = implode('', $ctrlDir); $buffer = $data . $dir . $this->_ctrlDirEnd . /* Total # of entries "on this disk". */ pack('v', count($ctrlDir)) . /* Total # of entries overall. */ pack('v', count($ctrlDir)) . /* Size of central directory. */ pack('V', strlen($dir)) . /* Offset to start of central dir. */ pack('V', strlen($data)) . /* ZIP file comment length. */ "\x00\x00"; if (JFile::write($path, $buffer) === false) { return false; } return true; } }