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Contents of /expose/index.php

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Revision 1.9 - (show annotations)
Fri Nov 7 23:12:11 2003 UTC (20 years, 11 months ago) by cam
Branch: MAIN
CVS Tags: HEAD
Changes since 1.8: +25 -3 lines
Added FlashMode to the EXIF headers

1 <?php
2 /* vim: set ts=4:
3 +----------------------------------------------------------------------+
4 | expose, a simple image gallery written in php4.
5 +----------------------------------------------------------------------+
6 | Copyright 2003 Carl Johan Schedvin
7 | This program is distributed under the terms of the
8 | GNU General Public License, Version 2
9 |
10 | This program is free software; you can redistribute it and/or modify
11 | it under the terms of the GNU General Public License, Version 2 as
12 | published by the Free Software Foundation.
13 |
14 | This program is distributed in the hope that it will be useful,
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 | GNU General Public License for more details.
18 |
19 | You should have received a copy of the GNU General Public License,
20 | Version 2 along with this program; if not, visit GNU's Home Page
21 | http://www.gnu.org/
22 +----------------------------------------------------------------------+
23 $Id: index.php,v 1.8 2003/11/07 22:39:24 cam Exp $
24
25
26
27 // CODE FOR EMBEDDING AVI/MPEG/MOV FILES IN HTML
28
29 <embed src="filename" autostart="false" width="320" height="240" align="left" oncursor="play" hspace="20">
30 <noembed>
31 <a href="filename">click to view</a>
32 <img dynsrc="filename" start="mouseover" align="left" controls width="320" height="240" hspace="25">
33 </a>
34 </noembed>
35 */
36
37 $global_var['metadata']['author'] = "Carl Johan Schedvin <cjsc02@student.bth.se>";
38 $global_var['metadata']['keywords'] = "photos,gallery,album,digitalcamera,fuji,finepix";
39 $global_var['metadata']['description'] = "An photogallery written in PHP4";
40
41
42 $global_var['str_msg']['copyright'] = "all photos &copy; copyright Carl Johan Schedvin. all rights reserved.";
43
44 $global_var['external']['magick'] = "/usr/bin/convert";
45
46 $global_var['path']['thumb_dir'] = '.thumbs';
47 $global_var['path']['cache_dir'] = '.cache';
48
49 $global_var['image_sz']['thumb'] = array (
50 'x' => 120,
51 'y' => 80,
52 'ql' => 70,
53 'wm' => ''
54 );
55 $global_var['image_sz']['640'] = array (
56 'x' => 640,
57 'y' => 480,
58 'ql' => 88,
59 'wm' => ''
60 );
61 $global_var['image_sz']['800'] = array (
62 'x' => 800,
63 'y' => 600,
64 'ql' => 89,
65 'wm' => ''
66 );
67 $global_var['image_sz']['1024'] = array (
68 'x' => 1024,
69 'y' => 768,
70 'ql' => 90,
71 'wm' => ''
72 );
73
74 $global_var['image_sz']['valid_sizes'] = array (
75 '640x480',
76 '800x600',
77 '1024x768'
78 );
79
80 $global_var['image_sz']['default'] =& $global_var['image_sz']['640'];
81
82 $exif_headers = array ();
83
84
85 if(isset($_SERVER['PHP_SELF'])) {
86 $php_self = $_SERVER['PHP_SELF'];
87 } else {
88 $php_self = $HTTP_SERVER_VARS['PHP_SELF'];
89 }
90
91 if (isset($_GET)) {
92 $get_vars = $_GET;
93 } else {
94 $get_vars = $HTTP_GET_VARS;
95 }
96
97
98
99 /**
100 * Extracts the EXIF header of a JPG if available using
101 * built-in php function exif_read_data, this information
102 * is extracted upon request and not written to disk.
103 */
104 function extract_exif_data()
105 {
106 global $global_var, $pwd, $get_vars, $exif_headers;
107
108 $src_image = $get_vars['img'];
109 $exif_data = @exif_read_data($pwd.'/'.$src_image,0,true);
110
111 if($exif_data) {
112
113 foreach($exif_data as $exif_section_key => $exif_section) {
114 foreach($exif_section as $exif_key => $exif_value) {
115
116 switch($exif_key) {
117 case 'Model':
118 array_push($exif_headers, 'Model: '.$exif_value);
119 break;
120
121 case 'ApertureFNumber':
122 array_push($exif_headers, 'Aperture: '. $exif_value);
123 break;
124
125 case 'FocalLength':
126 $factor = 6.49122807;
127 $vars = split("/",$exif_value);
128 $focal_length = round(($vars[0]/$vars[1])*$factor);
129 array_push($exif_headers, 'Focal Length: '. $focal_length .'mm');
130 break;
131
132 case 'DateTime':
133 array_push($exif_headers, 'Date: '.$exif_value);
134 break;
135
136 case 'FlashMode':
137 switch($exif_value) {
138 case '0':
139 array_push($exif_headers, 'Flash: Auto');
140 break;
141 case '1':
142 array_push($exif_headers, 'Flash: On');
143 break;
144 case '2':
145 array_push($exif_headers, 'Flash: Off');
146 break;
147 case '3':
148 array_push($exif_headers, 'Flash: Red-Eye Reduction');
149 break;
150 default:
151 array_push($exif_headers, 'Flash: Unknown');
152 break;
153 }
154 break;
155 case 'FocusMode':
156
157 switch($exif_value) {
158 case '0':
159 array_push($exif_headers, 'Focus: C-AF/S-AF');
160 break;
161 case '1':
162 array_push($exif_headers, 'Focus: MF');
163 break;
164 default:
165 break;
166 }
167 break;
168 case 'ISOSpeedRatings';
169 array_push($exif_headers, 'ISO: '.$exif_value);
170 break;
171 default:
172 break;
173 }
174 }
175 }
176 if(sizeof($exif_headers)>0) {
177 ksort($exif_headers);
178 reset($exif_headers);
179 }
180 }
181 }
182
183
184
185
186 function create_thumbnail($src_image)
187 {
188 global $global_var, $pwd;
189 if(isset($global_var['external']['magick'])) {
190 if(file_exists($pwd.'/'.$src_image)) {
191 $src_image_sz = GetImageSize($pwd.'/'.$src_image);
192 $resize_aspect = round(($global_var['image_sz']['thumb']['y'] / $src_image_sz[1])*100, 2);
193 exec($global_var['external']['magick']
194 .' -geometry '.$resize_aspect.'%'
195 .' -quality '.$global_var['image_sz']['thumb']['ql']
196 .' '.$pwd.'/'.$src_image
197 .' '.$pwd.'/'.$global_var['path']['thumb_dir'].'/'.$src_image
198 );
199 }
200 }
201 }
202
203
204 function print_thumbnails()
205 {
206 global $global_var, $image_files, $pwd;
207
208 // check if thumbnail directory exists, if not create it.
209 if(!file_exists($pwd.'/'.$global_var['path']['thumb_dir']))
210 mkdir($pwd.'/'.$global_var['path']['thumb_dir'],0777);
211
212 echo <<<EOT
213 <div id="thumbnails_container">\n
214
215 EOT;
216
217 foreach($image_files as $image) {
218
219 $thumb_image = $pwd.'/'.$global_var['path']['thumb_dir'].'/'.$image;
220
221 // check if a thumbnail for current image exists, if not create one.
222 if(!file_exists($thumb_image))
223 create_thumbnail($image);
224
225 $thumb_sz = GetImageSize($thumb_image);
226
227 echo <<<EOT
228 <div class="thumbnail" style="width: {$thumb_sz[0]}px; height: {$thumb_sz[1]}px;">\n
229 <a href="$php_self?dir=$pwd&img=$image">
230 <img src="$thumb_image" alt=""/>
231 </a>
232 </div>\n
233 EOT;
234 }
235
236 echo <<<EOT
237 </div>\n
238 <div style="clear: both;"><br/></div>\n
239 EOT;
240 }
241
242
243
244
245 function show_image()
246 {
247 global $global_var, $get_vars, $pwd, $exif_headers;
248
249 $image = $pwd.'/'.$get_vars['img'];
250
251 $cached_image = $pwd.'/'.$global_var['path']['cache_dir'];
252
253 if(file_exists($image)) {
254
255 $image_size = GetImageSize($image);
256 $src_image_size = $image_size;
257
258 if(isset($get_vars['width'])) {
259
260 $cache_size = split("x",$get_vars['width']);
261
262 if($cache_size[0] >= $src_image_size[0]) {
263 $cache_image = $image;
264 } else {
265 if(array_search($get_vars['width'], $global_var['image_sz']['valid_sizes'])) {
266 if(!file_exists($pwd.'/.cache/'.$get_vars['width'].'_'.$get_vars['img'])) {
267 resize_image($get_vars['width'].'_');
268 }
269 $cached_image = $pwd.'/.cache/'.$get_vars['width'].'_'.$get_vars['img'];
270 }
271 if($cache_size[0] == $global_var['image_sz']['default']['x'])
272 $cached_image = $cached_image.'/default_'.$get_vars['img'];
273 }
274
275 } else {
276 if(!file_exists($cached_image.'/default_'.$get_vars['img'])) {
277 resize_image('default_');
278
279 }
280 $cached_image = $cached_image.'/default_'.$get_vars['img'];
281
282 }
283
284 $image_size = GetImageSize($cached_image);
285
286 extract_exif_data();
287
288 if(sizeof($exif_headers) > 0) {
289
290 $exif_str .= sprintf("<span style=\"font-weight: bold; color:#333;\">EXIF</span> ");
291
292 foreach($exif_headers as $exif_tag) {
293 $exif_str .= sprintf("| %s ", $exif_tag);
294 }
295
296 echo <<<EOT
297 <div id="exif_headers">\n
298 <span>$exif_str</span>\n
299 </div>\n
300 EOT;
301
302 }
303
304
305 echo <<<EOT
306 <div id="image" style="width: {$image_size[0]}px; height: {$image_size[1]}px;">\n
307 <a href="$image" target="_blank"><img src="$cached_image" alt=""></a>
308 </div>\n
309 EOT;
310
311 $image_index = get_image_index();
312 $next = get_next_image($image_index);
313 $prev = get_prev_image($image_index);
314
315 echo <<<EOT
316 <span style="font-weight: bold;">Size:</span>&nbsp;
317 EOT;
318
319 foreach($global_var['image_sz']['valid_sizes'] as $new_size) {
320
321 if($get_vars['width'] == $new_size) {
322 echo $new_size;
323 } elseif($cache_size[0] >= $src_image_size[0]) {
324 } else {
325
326 echo <<<EOT
327 <a href="$php_self?dir=$pwd&img={$get_vars[img]}&width=$new_size">$new_size</a>&nbsp;
328 EOT;
329 }
330
331 }
332
333 echo <<<EOT
334 <a href="$pwd/{$get_vars[img]}" target="_blank">{$src_image_size[0]}x{$src_image_size[1]}</a>
335 EOT;
336
337 echo <<<EOT
338 <div>\n
339 <a href="$php_self?dir=$pwd&img=$prev">prev</a>
340 <a href="$php_self?dir=$pwd&img=$next">next</a>\n
341 </div>\n
342 EOT;
343
344 }
345 }
346
347
348
349
350 function resize_image($prefix)
351 {
352 global $global_var, $get_vars, $pwd;
353 $src_image = $get_vars['img'];
354 $cache_dir = $pwd.'/'.$global_var['path']['cache_dir'];
355
356 if(isset($global_var['external']['magick'])) {
357 if(file_exists($pwd.'/'.$src_image)) {
358
359 $src_image_sz = GetImageSize($pwd.'/'.$src_image);
360 $resize_aspect = round(($global_var['image_sz']['default']['y'] / $src_image_sz[1])*100, 2);
361 $resize_quality = $global_var['image_sz']['default']['ql'];
362
363 if(isset($get_vars['width'])) {
364 $new_width = split("x", $get_vars['width']);
365 $resize_aspect = round(($new_width[1] / $src_image_sz[1])*100, 2);
366 }
367
368 // DEBUG: print "Quality: ".$global_var['image_sz']['default']['ql'] ." Resize Aspect: ". $resize_aspect ."%";
369
370 if(!file_exists($cache_dir))
371 mkdir($cache_dir,0777);
372
373 $debug = array();
374
375 exec($global_var['external']['magick']
376 .' -geometry '.$resize_aspect.'%'
377 .' -quality '.$resize_quality
378 .' '.$pwd.'/'.$src_image
379 .' '.$pwd.'/'.$global_var['path']['cache_dir'].'/'.$prefix.$src_image, $debug, $ret_val
380 );
381
382 print_r($debug);
383 }
384 }
385 }
386
387
388
389
390 function get_image_index()
391 {
392 global $get_vars, $image_files;
393
394 return array_search($get_vars['img'], $image_files);
395 }
396
397 function get_next_image($pos)
398 {
399 global $get_vars, $image_files;
400
401 $next = $pos + 1;
402
403 if($next >= sizeof($image_files))
404 $next = 0;
405
406 return $image_files[$next];
407 }
408
409 function get_prev_image($pos)
410 {
411 global $get_vars, $image_files;
412
413 $prev = $pos - 1;
414
415 if($prev < 0)
416 $prev = sizeof($image_files) - 1;
417
418 return $image_files[$prev];
419 }
420
421
422 function get_split_path()
423 {
424 global $pwd;
425
426 $split_path = split('/', $pwd);
427
428 return $split_path;
429 }
430 /**
431 * Retirieves all filenames that are images exclude all
432 * other files. It's not recursive so it only examins the
433 * pwd and not sub directories if present.
434 *
435 * @param str $path, pwd
436 * @return @rray $images, list of all filenames
437 */
438 function &get_image_filenames($path)
439 {
440 global $global_var;
441 $images = array();
442
443 if(is_dir($path)) {
444 $pwd_dd = opendir($path);
445 while(($file = readdir($pwd_dd)) !== false) {
446 if(is_file($path."/".$file)
447 && !eregi("^\.|^.*.php|^.*.css|^.*~|^.txt",$file))
448 array_push($images, $file);
449 }
450 }
451 return $images;
452 }
453
454
455
456
457 /**
458 * Retrieves all directory names present in $path. Using
459 * eregi we exclude names we don't want in the list.
460 */
461 function &get_directory_names($path)
462 {
463 global $global_var;
464 $dirs = array();
465
466 if(is_dir($path)) {
467 $pwd_dd = opendir($path);
468 while(($file = readdir($pwd_dd)) !== false) {
469 if(is_dir($path."/".$file)
470 && !eregi("^\.|^\..|^CVS|^". $global_var['path']['thumb_dir']
471 ."|^". $global_var['path']['cache_dir'],$file))
472 array_push($dirs, $file);
473 }
474 }
475 return $dirs;
476 }
477
478
479
480
481
482
483 function create_directory_browser()
484 {
485 global $pwd, $dir_files;
486
487 if(sizeof($dir_files)>0) {
488
489 foreach($dir_files as $dir) {
490
491 $dir_image = 'open.png';
492
493 if(file_exists($pwd.'/'.$dir.'/.htaccess'))
494 $dir_image = 'protected.png';
495
496 echo <<<EOT
497 <div style="text-align: center;">\n
498 <a href="$php_self?dir=$pwd/$dir">\n
499 <img src="../images/$dir_image" alt=""/><br/>$dir\n
500 </a>\n
501 </div>\n
502 EOT;
503 }
504 }
505 }
506
507
508
509
510
511
512 if (isset($get_vars['dir']) && is_dir(rawurldecode($get_vars['dir'])))
513 {
514 $pwd = rawurldecode($get_vars['dir']);
515 } else {
516 $pwd = './';
517 }
518
519 $image_files =& get_image_filenames($pwd);
520 $dir_files =& get_directory_names($pwd);
521
522
523 // print the html header before continuing processing.
524 html_template_header();
525
526 //if($global_var['navigation_bar'])
527 html_template_navbar();
528
529 if(sizeof($image_files) <= 0) {
530 if(sizeof($dir_files) > 0) {
531 create_directory_browser();
532 } else {
533 }
534 } else {
535 if(sizeof($dir_files) > 0) {
536 }
537 if(isset($get_vars['img'])) {
538 show_image();
539 } else {
540 print_thumbnails();
541 }
542 }
543
544
545
546
547 // print the html footer to make it nice and tidy.
548 html_template_footer();
549
550
551
552
553
554
555
556
557
558 /**
559 * Prints the html header, contains html document specific
560 * definitions and paths. Tags as <title> are set dynamically
561 * everytime the page is reloaded. The template is encapsulated
562 * in a function for structural reasons.
563 */
564 function html_template_header()
565 {
566 global $global_var;
567 echo <<<EOF
568 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
569 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
570 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
571
572 <head>
573
574 <meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
575 <meta name="author" content="{$global_var[metadata][author]}" />
576 <meta name="keywords" content="{$global_var[metadata][keywords]}" />
577 <meta name="description" content="{$global_var[metadata][description]}" />
578 <meta name="robots" content="all" />
579
580 <title>expose: </title>
581
582 <style type="text/css">
583 @import "./style.css";
584 </style>
585
586 <link rel="Shortcut Icon" type="image/x-icon" href="/img/favicon.ico" />
587
588 </head>
589
590 <body>
591 <div id="header">\n
592 <h1>expose:</h1>
593 <span style="font-style: italic;"></span>
594 </div>\n
595 <div id="container">\n
596 EOF;
597 }
598
599
600
601
602
603
604
605 /**
606 * Prints the html footer, this contains only closing
607 * tags for the html document and the copyright notice.
608 */
609 function html_template_footer()
610 {
611 global $global_var;
612 echo <<<EOF
613 <div id="copyright">\n
614 {$global_var[str_msg][copyright]}<br />\n
615 <span style="font-style: italic;">\$Revision: 1.8 $</span>\n
616 </div>\n\n
617 </div>\n
618 </body>\n
619 </html>\n
620 EOF;
621 }
622
623
624
625
626
627
628 function html_template_navbar()
629 {
630 global $get_vars;
631 $split_path = get_split_path();
632
633 if(sizeof($split_path) > 0) {
634
635 foreach($split_path as $dir) {
636 if($dir!='') {
637 $path .= $dir.'/';
638 echo <<<EOT
639 <a style="text-decoration: none;" href="$php_self?dir=$path">
640 EOT;
641 if($dir == '.')
642 $dir = 'expose';
643
644 echo <<<EOT
645 $dir</a> &gt;&nbsp;\n
646 EOT;
647 }
648 }
649 if(isset($get_vars['img'])) {
650 echo <<<EOT
651 {$get_vars[img]}
652 EOT;
653 }
654 }
655 }
656
657 ?>

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