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File: includes/getid3/write.vorbiscomment.php

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  Classes of Karl Holz  >  WaldScan  >  includes/getid3/write.vorbiscomment.php  >  Download  
File: includes/getid3/write.vorbiscomment.php
Role: Auxiliary script
Content type: text/plain
Description: getID3 dependency
Class: WaldScan
Scan directories for files with certain extensions
Author: By
Last change:
Date: 2 years ago
Size: 4,627 bytes
 

Contents

Class file image Download
<?php
/////////////////////////////////////////////////////////////////
/// getID3() by James Heinrich <info@getid3.org> //
// available at http://getid3.sourceforge.net //
// or http://www.getid3.org //
/////////////////////////////////////////////////////////////////
// See readme.txt for more details //
/////////////////////////////////////////////////////////////////
// //
// write.vorbiscomment.php //
// module for writing VorbisComment tags //
// dependencies: /helperapps/vorbiscomment.exe //
// ///
/////////////////////////////////////////////////////////////////


class getid3_write_vorbiscomment
{

    var
$filename;
    var
$tag_data;
    var
$warnings = array(); // any non-critical errors will be stored here
   
var $errors = array(); // any critical errors will be stored here

   
function getid3_write_vorbiscomment() {
        return
true;
    }

    function
WriteVorbisComment() {

        if (
preg_match('#(1|ON)#i', ini_get('safe_mode'))) {
           
$this->errors[] = 'PHP running in Safe Mode (backtick operator not available) - cannot call vorbiscomment, tags not written';
            return
false;
        }

       
// Create file with new comments
       
$tempcommentsfilename = tempnam(GETID3_TEMP_DIR, 'getID3');
        if (
is_writable($tempcommentsfilename) && is_file($tempcommentsfilename) && ($fpcomments = fopen($tempcommentsfilename, 'wb'))) {

            foreach (
$this->tag_data as $key => $value) {
                foreach (
$value as $commentdata) {
                   
fwrite($fpcomments, $this->CleanVorbisCommentName($key).'='.$commentdata."\n");
                }
            }
           
fclose($fpcomments);

        } else {
           
$this->errors[] = 'failed to open temporary tags file "'.$tempcommentsfilename.'", tags not written';
            return
false;
        }

       
$oldignoreuserabort = ignore_user_abort(true);
        if (
GETID3_OS_ISWINDOWS) {

            if (
file_exists(GETID3_HELPERAPPSDIR.'vorbiscomment.exe')) {
               
//$commandline = '"'.GETID3_HELPERAPPSDIR.'vorbiscomment.exe" -w --raw -c "'.$tempcommentsfilename.'" "'.str_replace('/', '\\', $this->filename).'"';
                // vorbiscomment works fine if you copy-paste the above commandline into a command prompt,
                // but refuses to work with `backtick` if there are "doublequotes" present around BOTH
                // the metaflac pathname and the target filename. For whatever reason...??
                // The solution is simply ensure that the metaflac pathname has no spaces,
                // and therefore does not need to be quoted

                // On top of that, if error messages are not always captured properly under Windows
                // To at least see if there was a problem, compare file modification timestamps before and after writing
               
clearstatcache();
               
$timestampbeforewriting = filemtime($this->filename);

               
$commandline = GETID3_HELPERAPPSDIR.'vorbiscomment.exe -w --raw -c "'.$tempcommentsfilename.'" "'.$this->filename.'" 2>&1';
               
$VorbiscommentError = `$commandline`;

                if (empty(
$VorbiscommentError)) {
                   
clearstatcache();
                    if (
$timestampbeforewriting == filemtime($this->filename)) {
                       
$VorbiscommentError = 'File modification timestamp has not changed - it looks like the tags were not written';
                    }
                }
            } else {
               
$VorbiscommentError = 'vorbiscomment.exe not found in '.GETID3_HELPERAPPSDIR;
            }

        } else {

           
$commandline = 'vorbiscomment -w --raw -c "'.$tempcommentsfilename.'" "'.$this->filename.'" 2>&1';
           
$VorbiscommentError = `$commandline`;

        }

       
// Remove temporary comments file
       
unlink($tempcommentsfilename);
       
ignore_user_abort($oldignoreuserabort);

        if (!empty(
$VorbiscommentError)) {

           
$this->errors[] = 'system call to vorbiscomment failed with message: '."\n\n".$VorbiscommentError;
            return
false;

        }

        return
true;
    }

    function
DeleteVorbisComment() {
       
$this->tag_data = array(array());
        return
$this->WriteVorbisComment();
    }

    function
CleanVorbisCommentName($originalcommentname) {
       
// A case-insensitive field name that may consist of ASCII 0x20 through 0x7D, 0x3D ('=') excluded.
        // ASCII 0x41 through 0x5A inclusive (A-Z) is to be considered equivalent to ASCII 0x61 through
        // 0x7A inclusive (a-z).

        // replace invalid chars with a space, return uppercase text
        // Thanks Chris Bolt <chris-getid3Øbolt*cx> for improving this function
        // note: *reg_replace() replaces nulls with empty string (not space)
       
return strtoupper(preg_replace('#[^ -<>-}]#', ' ', str_replace("\x00", ' ', $originalcommentname)));

    }

}

?>