基于PHP的电子科技公司网站管理系统.zip

<?php ///////////////////////////////////////////////////////////////// /// getID3() by James Heinrich <info@getid3.org> // // available at https://github.com/JamesHeinrich/getID3 // // or https://www.getid3.org // // or http://getid3.sourceforge.net // // see readme.txt for more details // ///////////////////////////////////////////////////////////////// // // // module.audio-video.quicktime.php // // module for analyzing Quicktime and MP3-in-MP4 files // // dependencies: module.audio.mp3.php // // dependencies: module.tag.id3v2.php // // /// ///////////////////////////////////////////////////////////////// if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers exit; } getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio.mp3.php', __FILE__, true); getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v2.php', __FILE__, true); // needed for ISO 639-2 language code lookup class getid3_quicktime extends getid3_handler { public $ReturnAtomData = true; public $ParseAllPossibleAtoms = false; /** * @return bool */ public function Analyze() { $info = &$this->getid3->info; $info['fileformat'] = 'quicktime'; $info['quicktime']['hinting'] = false; $info['quicktime']['controller'] = 'standard'; // may be overridden if 'ctyp' atom is present $this->fseek($info['avdataoffset']); $offset = 0; $atomcounter = 0; $atom_data_read_buffer_size = $info['php_memory_limit'] ? round($info['php_memory_limit'] / 4) : $this->getid3->option_fread_buffer_size * 1024; // set read buffer to 25% of PHP memory limit (if one is specified), otherwise use option_fread_buffer_size [default: 32MB] while ($offset < $info['avdataend']) { if (!getid3_lib::intValueSupported($offset)) { $this->error('Unable to parse atom at offset '.$offset.' because beyond '.round(PHP_INT_MAX / 1073741824).'GB limit of PHP filesystem functions'); break; } $this->fseek($offset); $AtomHeader = $this->fread(8); $atomsize = getid3_lib::BigEndian2Int(substr($AtomHeader, 0, 4)); $atomname = substr($AtomHeader, 4, 4); // 64-bit MOV patch by jlegateØktnc*com if ($atomsize == 1) { $atomsize = getid3_lib::BigEndian2Int($this->fread(8)); } if (($offset + $atomsize) > $info['avdataend']) { $info['quicktime'][$atomname]['name'] = $atomname; $info['quicktime'][$atomname]['size'] = $atomsize; $info['quicktime'][$atomname]['offset'] = $offset; $this->error('Atom at offset '.$offset.' claims to go beyond end-of-file (length: '.$atomsize.' bytes)'); return false; } if ($atomsize == 0) { // Furthermore, for historical reasons the list of atoms is optionally // terminated by a 32-bit integer set to 0. If you are writing a program // to read user data atoms, you should allow for the terminating 0. $info['quicktime'][$atomname]['name'] = $atomname; $info['quicktime'][$atomname]['size'] = $atomsize; $info['quicktime'][$atomname]['offset'] = $offset; break; } $atomHierarchy = array(); $parsedAtomData = $this->QuicktimeParseAtom($atomname, $atomsize, $this->fread(min($atomsize, $atom_data_read_buffer_size)), $offset, $atomHierarchy, $this->ParseAllPossibleAtoms); $parsedAtomData['name'] = $atomname; $parsedAtomData['size'] = $atomsize; $parsedAtomData['offset'] = $offset; if (in_array($atomname, array('uuid'))) { @$info['quicktime'][$atomname][] = $parsedAtomData; } else { $info['quicktime'][$atomname] = $parsedAtomData; } $offset += $atomsize; $atomcounter++; } if (!empty($info['avdataend_tmp'])) { // this value is assigned to a temp value and then erased because // otherwise any atoms beyond the 'mdat' atom would not get parsed $info['avdataend'] = $info['avdataend_tmp']; unset($info['avdataend_tmp']); } if (!empty($info['quicktime']['comments']['chapters']) && is_array($info['quicktime']['comments']['chapters']) && (count($info['quicktime']['comments']['chapters']) > 0)) { $durations = $this->quicktime_time_to_sample_table($info); for ($i = 0; $i < count($info['quicktime']['comments']['chapters']); $i++) { $bookmark = array(); $bookmark['title'] = $info['quicktime']['comments']['chapters'][$i]; if (isset($durations[$i])) { $bookmark['duration_sample'] = $durations[$i]['sample_duration']; if ($i > 0) { $bookmark['start_sample'] = $info['quicktime']['bookmarks'][($i - 1)]['start_sample'] + $info['quicktime']['bookmarks'][($i - 1)]['duration_sample']; } else { $bookmark['start_sample'] = 0; } if ($time_scale = $this->quicktime_bookmark_time_scale($info)) { $bookmark['duration_seconds'] = $bookmark['duration_sample'] / $time_scale; $bookmark['start_seconds'] = $bookmark['start_sample'] / $time_scale; } } $info['quicktime']['bookmarks'][] = $bookmark; } } if (isset($info['quicktime']['temp_meta_key_names'])) { unset($info['quicktime']['temp_meta_key_names']); } if (!empty($info['quicktime']['comments']['location.ISO6709'])) { // https://en.wikipedia.org/wiki/ISO_6709 foreach ($info['quicktime']['comments']['location.ISO6709'] as $ISO6709string) { $ISO6709parsed = array('latitude'=>false, 'longitude'=>false, 'altitude'=>false); if (preg_match('#^([\\+\\-])([0-9]{2}|[0-9]{4}|[0-9]{6})(\\.[0-9]+)?([\\+\\-])([0-9]{3}|[0-9]{5}|[0-9]{7})(\\.[0-9]+)?(([\\+\\-])([0-9]{3}|[0-9]{5}|[0-9]{7})(\\.[0-9]+)?)?/$#', $ISO6709string, $matches)) { @list($dummy, $lat_sign, $lat_deg, $lat_deg_dec, $lon_sign, $lon_deg, $lon_deg_dec, $dummy, $alt_sign, $alt_deg, $alt_deg_dec) = $matches; if (strlen($lat_deg) == 2) { // [+-]DD.D $ISO6709parsed['latitude'] = (($lat_sign == '-') ? -1 : 1) * floatval(ltrim($lat_deg, '0').$lat_deg_dec); } elseif (strlen($lat_deg) == 4) { // [+-]DDMM.M $ISO6709parsed['latitude'] = (($lat_sign == '-') ? -1 : 1) * floatval(ltrim(substr($lat_deg, 0, 2), '0')) + floatval(ltrim(substr($lat_deg, 2, 2), '0').$lat_deg_dec / 60); } elseif (strlen($lat_deg) == 6) { // [+-]DDMMSS.S $ISO6709parsed['latitude'] = (($lat_sign == '-') ? -1 : 1) * floatval(ltrim(substr($lat_deg, 0, 2), '0')) + floatval(ltrim(substr($lat_deg, 2, 2), '0') / 60) + floatval(ltrim(substr($lat_deg, 4, 2), '0').$lat_deg_dec / 3600); } if (strlen($lon_deg) == 3) { // [+-]DDD.D $ISO6709parsed['longitude'] = (($lon_sign == '-') ? -1 : 1) * floatval(ltrim($lon_deg, '0').$lon_deg_dec); } elseif (strlen($lon_deg) == 5) { // [+-]DDDMM.M $ISO6709parsed['longitude'] = (($lon_sign == '-') ? -1 : 1) * floatval(ltrim(substr($lon_deg, 0, 2), '0')) + floatval(ltrim(substr($lon_deg, 2, 2), '0').$lon_deg_dec / 60); } elseif (strlen($lon_deg) == 7) { // [+-]DDDMMSS.S $ISO6709parsed['longitude'] = (($lon_sign == '-') ? -1 : 1) * floatval(ltrim(substr($lon_deg, 0, 2), '0')) + floatval(ltrim(substr($lon_deg, 2, 2), '0') / 60) + floatval(ltrim(substr($lon_deg, 4, 2), '0').$lon_deg_dec / 3600); } if (strlen($alt_deg) == 3) { // [+-]DDD.D $ISO6709parsed['altitude'] = (($alt_sign == '-') ? -1 : 1) * floatval(ltrim($alt_deg, '0').$alt_deg_dec); } elseif (strlen($alt_deg) == 5) { // [+-]DDDMM.M $ISO6709parsed['altitude'] = (($alt_sign == '-') ? -1 : 1) * floatval(ltrim(substr($alt_deg, 0, 2), '0')) + floatval(ltrim(substr($alt_deg, 2, 2), '0').$alt_deg_dec / 60); } elseif (strlen($alt_deg) == 7) { // [+-]DDDMMSS.S $ISO6709parsed['altitude'] = (($alt_sign == '-') ? -1 : 1) * floatval(ltrim(substr($alt_deg, 0, 2), '0')) + floa