PHP getid3_lib::sha1_file方法代碼示例

 function getHashdata($algorithm)
 {
     switch ($algorithm) {
         case 'md5':
         case 'sha1':
             break;
         default:
             return $this->error('bad algorithm "' . $algorithm . '" in getHashdata()');
             break;
     }
     if (@$this->info['fileformat'] == 'ogg' && @$this->info['audio']['dataformat'] == 'vorbis') {
         // We cannot get an identical md5_data value for Ogg files where the comments
         // span more than 1 Ogg page (compared to the same audio data with smaller
         // comments) using the normal getID3() method of MD5'ing the data between the
         // end of the comments and the end of the file (minus any trailing tags),
         // because the page sequence numbers of the pages that the audio data is on
         // do not match. Under normal circumstances, where comments are smaller than
         // the nominal 4-8kB page size, then this is not a problem, but if there are
         // very large comments, the only way around it is to strip off the comment
         // tags with vorbiscomment and MD5 that file.
         // This procedure must be applied to ALL Ogg files, not just the ones with
         // comments larger than 1 page, because the below method simply MD5's the
         // whole file with the comments stripped, not just the portion after the
         // comments block (which is the standard getID3() method.
         // The above-mentioned problem of comments spanning multiple pages and changing
         // page sequence numbers likely happens for OggSpeex and OggFLAC as well, but
         // currently vorbiscomment only works on OggVorbis files.
         if ((bool) ini_get('safe_mode')) {
             $this->info['warning'][] = 'Failed making system call to vorbiscomment.exe - ' . $algorithm . '_data is incorrect - error returned: PHP running in Safe Mode (backtick operator not available)';
             $this->info[$algorithm . '_data'] = false;
         } else {
             // Prevent user from aborting script
             $old_abort = ignore_user_abort(true);
             // Create empty file
             $empty = tempnam('*', 'getID3');
             touch($empty);
             // Use vorbiscomment to make temp file without comments
             $temp = tempnam('*', 'getID3');
             $file = $this->info['filenamepath'];
             if (GETID3_OS_ISWINDOWS) {
                 if (file_exists(GETID3_HELPERAPPSDIR . 'vorbiscomment.exe')) {
                     $commandline = '"' . GETID3_HELPERAPPSDIR . 'vorbiscomment.exe" -w -c "' . $empty . '" "' . $file . '" "' . $temp . '"';
                     $VorbisCommentError = `{$commandline}`;
                 } else {
                     $VorbisCommentError = 'vorbiscomment.exe not found in ' . GETID3_HELPERAPPSDIR;
                 }
             } else {
                 $commandline = 'vorbiscomment -w -c "' . $empty . '" "' . $file . '" "' . $temp . '" 2>&1';
                 $VorbisCommentError = `{$commandline}`;
             }
             if (!empty($VorbisCommentError)) {
                 $this->info['warning'][] = 'Failed making system call to vorbiscomment(.exe) - ' . $algorithm . '_data will be incorrect. If vorbiscomment is unavailable, please download from http://www.vorbis.com/download.psp and put in the getID3() directory. Error returned: ' . $VorbisCommentError;
                 $this->info[$algorithm . '_data'] = false;
             } else {
                 // Get hash of newly created file
                 switch ($algorithm) {
                     case 'md5':
                         $this->info[$algorithm . '_data'] = getid3_lib::md5_file($temp);
                         break;
                     case 'sha1':
                         $this->info[$algorithm . '_data'] = getid3_lib::sha1_file($temp);
                         break;
                 }
             }
             // Clean up
             unlink($empty);
             unlink($temp);
             // Reset abort setting
             ignore_user_abort($old_abort);
         }
     } else {
         if (!empty($this->info['avdataoffset']) || isset($this->info['avdataend']) && $this->info['avdataend'] < $this->info['filesize']) {
             // get hash from part of file
             $this->info[$algorithm . '_data'] = getid3_lib::hash_data($this->info['filenamepath'], $this->info['avdataoffset'], $this->info['avdataend'], $algorithm);
         } else {
             // get hash from whole file
             switch ($algorithm) {
                 case 'md5':
                     $this->info[$algorithm . '_data'] = getid3_lib::md5_file($this->info['filenamepath']);
                     break;
                 case 'sha1':
                     $this->info[$algorithm . '_data'] = getid3_lib::sha1_file($this->info['filenamepath']);
                     break;
             }
         }
     }
     return true;
 }

}
if (isset($_REQUEST['filename'])) {
    if (!file_exists($_REQUEST['filename']) || !is_file($_REQUEST['filename'])) {
        die(getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-8', $_REQUEST['filename'] . ' does not exist'));
    }
    $starttime = getmicrotime();
    //$getID3->setOption(array(
    //	'option_md5_data'  => $AutoGetHashes,
    //	'option_sha1_data' => $AutoGetHashes,
    //));
    $ThisFileInfo = $getID3->analyze($_REQUEST['filename']);
    $AutoGetHashes = (bool) (@$ThisFileInfo['filesize'] > 0 && $ThisFileInfo['filesize'] < 50 * 1048576);
    // auto-get md5_data, md5_file, sha1_data, sha1_file if filesize < 50MB, and NOT zero (which may indicate a file>2GB)
    if ($AutoGetHashes) {
        $ThisFileInfo['md5_file'] = getid3_lib::md5_file($_REQUEST['filename']);
        $ThisFileInfo['sha1_file'] = getid3_lib::sha1_file($_REQUEST['filename']);
    }
    getid3_lib::CopyTagsToComments($ThisFileInfo);
    $listdirectory = dirname(getid3_lib::SafeStripSlashes($_REQUEST['filename']));
    $listdirectory = realpath($listdirectory);
    // get rid of /../../ references
    if (GETID3_OS_ISWINDOWS) {
        // this mostly just gives a consistant look to Windows and *nix filesystems
        // (windows uses \ as directory seperator, *nix uses /)
        $listdirectory = str_replace('\\', '/', $listdirectory . '/');
    }
    if (strstr($_REQUEST['filename'], 'http://') || strstr($_REQUEST['filename'], 'ftp://')) {
        echo '<i>Cannot browse remote filesystems</i><br>';
    } else {
        echo 'Browse: <a href="' . $_SERVER['PHP_SELF'] . '?listdirectory=' . urlencode($listdirectory) . '">' . getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-8', $listdirectory) . '</a><br>';
    }