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278 lines
7.9 KiB
Plaintext
278 lines
7.9 KiB
Plaintext
<?php
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/* Test script for PHP module ext/exif
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*
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* (c) Marcus Boerger, 2002
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*
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* $Id$
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*
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* Rename the file to test.php and read the instructions. If the
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* script cannot be executed or does not generate any output check
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* you error log. In most cases this would mean you found an error
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* if the rest of your php environment works fine.
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*
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* The original version of module exif has many errors and mostly
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* fails on executing this script.
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*/
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$file = array_key_exists('thumbnail',$_REQUEST) ? $_REQUEST['thumbnail'] : '';
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//$file = '/t/temp/kodak-dc4800.tif';
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//$file = '/t/temp/canon-ixus.jpg';
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//$file = '/t/temp/test2.jpg';
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if ( $file) {
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$image = exif_thumbnail($file);
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if ( $image!==false) {
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@Header("content-type: image/jpeg");
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echo $image;
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} else {
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echo "<html><body><table>\n";
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echo "Thumbnail could not be extracted.\n";
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echo "</table></body></html>";
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}
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die();
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}
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$possible = array();
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/****************************************************************************/
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// message function is used for debugging purpose: just to se what happens
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function message($msg) {
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error_log($msg,0);
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echo "$msg\n";
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}
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function error_msg() {
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$ret = '<b style="color:green">O.K.</b>';
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if (array_key_exists('php_errormsg',$GLOBALS) && strlen($GLOBALS['php_errormsg'])) {
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$ret = '<b style="color:red">'.$GLOBALS['php_errormsg'].'</b>';
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$GLOBALS['php_errormsg'] = '';
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}
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return $ret;
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}
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/****************************************************************************/
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// private to function search_file()
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function _search_file($root,&$possible,$path='') {
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$sub = array();
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//error_log("search_file($root,$path)",0);
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if ($dir = @opendir($root.$path.'/')) {
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while (($found = @readdir($dir)) !== false) {
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$type = @filetype($root.$path.'/'.$found);
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//error_log("search_file($root$path):$type=$found",0);
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switch( $type) {
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case 'file':
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$pos = strpos($found,'.');
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if ( $pos !== false
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&& ( strtolower(substr($found,$pos+1))=='jpg'
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|| strtolower(substr($found,$pos+1))=='tif'
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|| strtolower(substr($found,$pos+1))=='gif'
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)
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)
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{
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$possible[] = $root.$path.'/'.$found;
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//error_log("search_file($root$path) add:$path/$found",0);
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}
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break;
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case 'dir':
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if ( $found!='.' && $found!='..') {
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$sub[count($sub)] = $found;
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}
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break;
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}
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}
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@closedir($dir);
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foreach( $sub as $idx => $found) {
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_search_file($root,$possible,$path.'/'.$found);
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}
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}
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}
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/****************************************************************************/
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// function: search_file($file,$ext)
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//
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// Searches for $file in document tree. The path is ignored.
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//
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function search_file() {
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global $argv;
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$possible = array();
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if ( array_key_exists('SCRIPT_FILENAME',$_SERVER)) {
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$path = $_SERVER['SCRIPT_FILENAME'];
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//error_log("SCRIPT_FILENAME($path)",0);
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} else {
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$path = $argv[0];
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//error_log("argv($path)",0);
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}
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if ( ($p=strpos($path,'?')) !== false) $path = substr($path,0,$p);
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if ( ($p=strrpos($path,'/')) < strlen($path)-1) $path = substr($path,0,$p);
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_search_file($path,$possible);
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return $possible;
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}
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/****************************************************************************/
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// function: search_file($file,$ext)
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//
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// Searches for $file in document tree. The path is ignored.
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//
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function AddInfo($Name,$Value) {
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if (is_array($Value)) $Value = 'Array: ('.join(',',$Value).')';
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$Value = nl2br($Value);
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return "<tr><td>$Name</td><td>$Value </td></tr>\n";
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}
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$possible = search_file();
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$title = "PHP module exif test page";
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?><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional">
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<html>
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<head>
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<title><?=$title ?></title>
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<style type="text/css">
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body {
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font-size: 12pt;
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}
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h1 {
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font-size: 20pt;
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font-weight:bold;
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}
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h2 {
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font-size: 16pt;
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font-weight:bold;
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}
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th {
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text-align: left;
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}
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ul {
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margin-bottom: 6pt;
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}
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</style>
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</head>
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<body>
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<h1><?=$title ?></h1>
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<h2>(c) Marcus Boerger, 2002</h2>
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</p>
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<p>
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Images taken from <a href="http://www.exif.org">www.exif.org</a>,
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<a href="http://marcus-boerger.de">marcus-boerger.de</a>
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all rights reserved by their authors and artists, see exif headers.
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The files can be downloaded <a href="http://marcus-boerger.de/php/ext/exif/test/">here</a>.
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To start the test you simple have to put all images into the same directory as this script.
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The test will work with all files in that directory and all subdirectories. To test private
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images just put them into that directory.
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</p>
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<p>
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Youmay take a look at the test <a href="http://marcus-boerger.de/php/ext/exif/test.txt">source here</a>.
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</p>
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<p>
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This test just prooves that some exif headers can be scanned.
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If all files produce a header in output the module might be o.k.
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</p>
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<p>
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What to look for in detail:
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</p>
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<ul>
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<li>kodak-dc4800-plus-acdsee.jpg
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<ul>
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<li>should provide a <b>long</b> comment 'by marcus börger<%04i>'*n</li>
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<li>this file returns an array but it also produces an errormessage because ACDSee destroys
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the integrity of IFD directory (size of directory and offsets of entries following any
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edited entry maybe wrong).
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</li>
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</ul>
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</li>
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<li>hp-photosmart.jpg
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<ul>
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<li>should provide a <b>two line</b> copyright notice</li>
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</ul>
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</li>
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<li>olympus-d320l
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<ul>
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<li>should provide an <b>APP12</b> infoset</li>
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</ul>
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</li>
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<li>unknown.jpg
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<ul>
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<li>should provide an <b>empty</b> comment, this is a comment section and not an IFD0, EXIF or GPS section</li>
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</ul>
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</li>
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<li>some images
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<ul>
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<li>have empty fields, that is the tag is present but no data is stored</li>
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</ul>
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</li>
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</ul>
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<h2>function exif_tagname</h2>
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<table border='1' cellspacing='0' cellpadding='3' summary="EXIF headernames">
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<?php
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if (function_exists('exif_tagname')) {
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?>
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<tr><td>ImageWidth</td><td><?=@exif_tagname(0x0100)?></td><td><?=error_msg()?></td></tr>
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<tr><td>JPEGProc</td><td><?=@exif_tagname(0x0200)?></td><td><?=error_msg()?></td></tr>
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<tr><td>SceneType</td><td><?=@exif_tagname(0xA301)?></td><td><?=error_msg()?></td></tr>
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<tr><td>false</td><td><?=@exif_tagname(0x0000)===false?'false':'value'?></td><td><?=error_msg()?></td></tr>
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<?php
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} else {
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echo "<tr><td>function exif_tagname is not supported</td></tr>\n";
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}
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?>
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</table>
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<br clear="all">
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<h2>function exif_read_data for <?=count($possible)?> images</h2>
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<table border='1' cellspacing='0' cellpadding='3' summary="EXIF information">
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<?php
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if (function_exists('exif_read_data')) {
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$num = 0;
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foreach($possible as $idx => $file) {
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$num++;
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$error = '';
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$len = 4;
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$size = GetImageSize($file);
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$error = error_msg();// clear message
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if ( $size === false) {
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$getimagesize = '<b style="color:red">GetImageSize returned false</b><br>'.$error;
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} else {
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$getimagesize = "[ $size[0], $size[1], $size[2], $size[3] ]";
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}
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/**/
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error_log("exif_read_data($file,'COMMENT,IFD0,EXIF,APP12', true);",0);
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$image = exif_read_data($file,'COMMENT,IFD0,EXIF,APP12',true);
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$error = error_msg();// clear message
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error_log("exif_read_data($file,'COMMENT,IFD0,EXIF,APP12', true): $error",0);
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//error_log("exif_read_data($file)",0);
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$res = '';
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if ( $image === false) {
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$error = '<b style="color:red">exif_read_data returned false</b><br>'.$error;
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} else {
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// ah no!$error = error_msg(); // force o.k.
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foreach($image as $Name => $Value) {
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if ( $Name!='Thumbnail') {
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if ( is_array($Value)) {
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$len++;
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$res .= AddInfo($Name,'Array('.count($Value).')');
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foreach( $Value as $idx => $Entry) {
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if ($idx==='Thumbnail') $Entry = '<data>';
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$len++;
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$res .= AddInfo($Name.':'.$idx,$Entry);
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}
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} else {
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$len++;
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$res .= AddInfo($Name,$Value);
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}
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}
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}
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}
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echo "<tr><td rowspan='$len' valign='top'>$num</td></tr>\n";
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echo "<tr><th colspan='2'>$file</th></tr>\n";
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echo "<tr><td><b>GetImageSize</b></td><td>$getimagesize</td></tr>\n";
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echo "<tr><td><b>exif_read_data</b></td><td>$error</td></tr>\n";
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echo $res;
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}
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} else {
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echo "<tr><td>function exif_read_data is not supported</td></tr>\n";
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}
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?>
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</table>
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</body>
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</html> |