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File: getID3/demos/demo.zip.php

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  Classes of Ali YILMAZ  >  PHP Media File Info Library  >  getID3/demos/demo.zip.php  >  Download  
File: getID3/demos/demo.zip.php
Role: Example script
Content type: text/plain
Description: Example script
Class: PHP Media File Info Library
Retrieve the details from a video or audio file
Author: By
Last change:
Date: 7 months ago
Size: 4,303 bytes
 

Contents

Class file image Download
<?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 //
// //
// /demo/demo.zip.php - part of getID3() //
// Sample script how to use getID3() to decompress zip files //
// see readme.txt for more details //
// ///
/////////////////////////////////////////////////////////////////

die('For security reasons, this demo has been disabled. It can be enabled by removing line '.__LINE__.' in demos/'.basename(__FILE__));


function
UnzipFileContents($filename, &$errors) {
   
$errors = array();
   
$DecompressedFileContents = array();
    if (!
class_exists('getID3')) {
       
$errors[] = 'class getID3 not defined, please include getid3.php';
    } elseif (include_once(
'module.archive.zip.php')) {
       
$getid3 = new getID3();
       
$getid3->info['filesize'] = filesize($filename);
       
ob_start();
        if (
$getid3->fp = fopen($filename, 'rb')) {
           
ob_end_clean();
           
$getid3_zip = new getid3_zip($getid3);
           
$getid3_zip->analyze();
            if ((
$getid3->info['fileformat'] == 'zip') && !empty($getid3->info['zip']['files'])) {
                if (!empty(
$getid3->info['zip']['central_directory'])) {
                   
$ZipDirectoryToWalk = $getid3->info['zip']['central_directory'];
                } elseif (!empty(
$getid3->info['zip']['entries'])) {
                   
$ZipDirectoryToWalk = $getid3->info['zip']['entries'];
                } else {
                   
$errors[] = 'failed to parse ZIP attachment "'.$filename.'" (no central directory)<br>';
                   
fclose($getid3->fp);
                    return
false;
                }
                foreach (
$ZipDirectoryToWalk as $key => $valuearray) {
                   
fseek($getid3->fp, $valuearray['entry_offset'], SEEK_SET);
                   
$LocalFileHeader = $getid3_zip->ZIPparseLocalFileHeader();
                    if (
$LocalFileHeader['flags']['encrypted']) {
                       
// password-protected
                       
$DecompressedFileContents[$valuearray['filename']] = '';
                    } else {
                       
fseek($getid3->fp, $LocalFileHeader['data_offset'], SEEK_SET);
                       
$compressedFileData = '';
                        while ((
strlen($compressedFileData) < $LocalFileHeader['compressed_size']) && !feof($getid3->fp)) {
                           
$compressedFileData .= fread($getid3->fp, 32768);
                        }
                        switch (
$LocalFileHeader['raw']['compression_method']) {
                            case
0: // store - great, just copy data unchanged
                               
$uncompressedFileData = $compressedFileData;
                                break;

                            case
8: // deflate
                               
ob_start();
                               
$uncompressedFileData = gzinflate($compressedFileData);
                               
$gzinflate_errors = trim(strip_tags(ob_get_contents()));
                               
ob_end_clean();
                                if (
$gzinflate_errors) {
                                   
$errors[] = 'gzinflate() failed for file ['.$LocalFileHeader['filename'].']: "'.$gzinflate_errors.'"';
                                    continue
2;
                                }
                                break;

                            case
1: // shrink
                           
case 2: // reduce-1
                           
case 3: // reduce-2
                           
case 4: // reduce-3
                           
case 5: // reduce-4
                           
case 6: // implode
                           
case 7: // tokenize
                           
case 9: // deflate64
                           
case 10: // PKWARE Date Compression Library Imploding
                               
$DecompressedFileContents[$valuearray['filename']] = '';
                               
$errors[] = 'unsupported ZIP compression method ('.$LocalFileHeader['raw']['compression_method'].' = '.$getid3_zip->ZIPcompressionMethodLookup($LocalFileHeader['raw']['compression_method']).')';
                                continue
2;

                            default:
                               
$DecompressedFileContents[$valuearray['filename']] = '';
                               
$errors[] = 'unknown ZIP compression method ('.$LocalFileHeader['raw']['compression_method'].')';
                                continue
2;
                        }
                       
$DecompressedFileContents[$valuearray['filename']] = $uncompressedFileData;
                        unset(
$compressedFileData);
                    }
                }
            } else {
               
$errors[] = $filename.' does not appear to be a zip file';
            }
        } else {
           
$error_message = ob_get_contents();
           
ob_end_clean();
           
$errors[] = 'failed to fopen('.$filename.', rb): '.$error_message;
        }
    } else {
       
$errors[] = 'failed to include_once(module.archive.zip.php)';
    }
    return
$DecompressedFileContents;
}

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