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Contents of /expose/index.php

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Revision 1.8 - (show annotations)
Fri Nov 7 22:39:24 2003 UTC (20 years, 11 months ago) by cam
Branch: MAIN
Changes since 1.7: +4 -3 lines
*** empty log message ***

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 1.7 2003/11/07 22:34:23 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($exif_headers, 'Flash: Off');
140 break;
141 case '1':
142 array_push($exif_headers, 'Flash: On');
143 break;
144 }
145 break;
146 case 'ISOSpeedRatings';
147 array_push($exif_headers, 'ISO: '.$exif_value);
148 break;
149 default:
150 break;
151 }
152 }
153 }
154 if(sizeof($exif_headers)>0) {
155 ksort($exif_headers);
156 reset($exif_headers);
157 }
158 }
159 }
160
161
162
163
164 function create_thumbnail($src_image)
165 {
166 global $global_var, $pwd;
167 if(isset($global_var['external']['magick'])) {
168 if(file_exists($pwd.'/'.$src_image)) {
169 $src_image_sz = GetImageSize($pwd.'/'.$src_image);
170 $resize_aspect = round(($global_var['image_sz']['thumb']['y'] / $src_image_sz[1])*100, 2);
171 exec($global_var['external']['magick']
172 .' -geometry '.$resize_aspect.'%'
173 .' -quality '.$global_var['image_sz']['thumb']['ql']
174 .' '.$pwd.'/'.$src_image
175 .' '.$pwd.'/'.$global_var['path']['thumb_dir'].'/'.$src_image
176 );
177 }
178 }
179 }
180
181
182 function print_thumbnails()
183 {
184 global $global_var, $image_files, $pwd;
185
186 // check if thumbnail directory exists, if not create it.
187 if(!file_exists($pwd.'/'.$global_var['path']['thumb_dir']))
188 mkdir($pwd.'/'.$global_var['path']['thumb_dir'],0777);
189
190 echo <<<EOT
191 <div id="thumbnails_container">\n
192
193 EOT;
194
195 foreach($image_files as $image) {
196
197 $thumb_image = $pwd.'/'.$global_var['path']['thumb_dir'].'/'.$image;
198
199 // check if a thumbnail for current image exists, if not create one.
200 if(!file_exists($thumb_image))
201 create_thumbnail($image);
202
203 $thumb_sz = GetImageSize($thumb_image);
204
205 echo <<<EOT
206 <div class="thumbnail" style="width: {$thumb_sz[0]}px; height: {$thumb_sz[1]}px;">\n
207 <a href="$php_self?dir=$pwd&img=$image">
208 <img src="$thumb_image" alt=""/>
209 </a>
210 </div>\n
211 EOT;
212 }
213
214 echo <<<EOT
215 </div>\n
216 <div style="clear: both;"><br/></div>\n
217 EOT;
218 }
219
220
221
222
223 function show_image()
224 {
225 global $global_var, $get_vars, $pwd, $exif_headers;
226
227 $image = $pwd.'/'.$get_vars['img'];
228
229 $cached_image = $pwd.'/'.$global_var['path']['cache_dir'];
230
231 if(file_exists($image)) {
232
233 $image_size = GetImageSize($image);
234 $src_image_size = $image_size;
235
236 if(isset($get_vars['width'])) {
237
238 $cache_size = split("x",$get_vars['width']);
239
240 if($cache_size[0] >= $src_image_size[0]) {
241 $cache_image = $image;
242 } else {
243 if(array_search($get_vars['width'], $global_var['image_sz']['valid_sizes'])) {
244 if(!file_exists($pwd.'/.cache/'.$get_vars['width'].'_'.$get_vars['img'])) {
245 resize_image($get_vars['width'].'_');
246 }
247 $cached_image = $pwd.'/.cache/'.$get_vars['width'].'_'.$get_vars['img'];
248 }
249 if($cache_size[0] == $global_var['image_sz']['default']['x'])
250 $cached_image = $cached_image.'/default_'.$get_vars['img'];
251 }
252
253 } else {
254 if(!file_exists($cached_image.'/default_'.$get_vars['img'])) {
255 resize_image('default_');
256
257 }
258 $cached_image = $cached_image.'/default_'.$get_vars['img'];
259
260 }
261
262 $image_size = GetImageSize($cached_image);
263
264 extract_exif_data();
265
266 if(sizeof($exif_headers) > 0) {
267
268 $exif_str .= sprintf("<span style=\"font-weight: bold; color:#333;\">EXIF</span> ");
269
270 foreach($exif_headers as $exif_tag) {
271 $exif_str .= sprintf("| %s ", $exif_tag);
272 }
273
274 echo <<<EOT
275 <div id="exif_headers">\n
276 <span>$exif_str</span>\n
277 </div>\n
278 EOT;
279
280 }
281
282
283 echo <<<EOT
284 <div id="image" style="width: {$image_size[0]}px; height: {$image_size[1]}px;">\n
285 <a href="$image" target="_blank"><img src="$cached_image" alt=""></a>
286 </div>\n
287 EOT;
288
289 $image_index = get_image_index();
290 $next = get_next_image($image_index);
291 $prev = get_prev_image($image_index);
292
293 echo <<<EOT
294 <span style="font-weight: bold;">Size:</span>&nbsp;
295 EOT;
296
297 foreach($global_var['image_sz']['valid_sizes'] as $new_size) {
298
299 if($get_vars['width'] == $new_size) {
300 echo $new_size;
301 } elseif($cache_size[0] >= $src_image_size[0]) {
302 } else {
303
304 echo <<<EOT
305 <a href="$php_self?dir=$pwd&img={$get_vars[img]}&width=$new_size">$new_size</a>&nbsp;
306 EOT;
307 }
308
309 }
310
311 echo <<<EOT
312 <a href="$pwd/{$get_vars[img]}" target="_blank">{$src_image_size[0]}x{$src_image_size[1]}</a>
313 EOT;
314
315 echo <<<EOT
316 <div>\n
317 <a href="$php_self?dir=$pwd&img=$prev">prev</a>
318 <a href="$php_self?dir=$pwd&img=$next">next</a>\n
319 </div>\n
320 EOT;
321
322 }
323 }
324
325
326
327
328 function resize_image($prefix)
329 {
330 global $global_var, $get_vars, $pwd;
331 $src_image = $get_vars['img'];
332 $cache_dir = $pwd.'/'.$global_var['path']['cache_dir'];
333
334 if(isset($global_var['external']['magick'])) {
335 if(file_exists($pwd.'/'.$src_image)) {
336
337 $src_image_sz = GetImageSize($pwd.'/'.$src_image);
338 $resize_aspect = round(($global_var['image_sz']['default']['y'] / $src_image_sz[1])*100, 2);
339 $resize_quality = $global_var['image_sz']['default']['ql'];
340
341 if(isset($get_vars['width'])) {
342 $new_width = split("x", $get_vars['width']);
343 $resize_aspect = round(($new_width[1] / $src_image_sz[1])*100, 2);
344 }
345
346 // DEBUG: print "Quality: ".$global_var['image_sz']['default']['ql'] ." Resize Aspect: ". $resize_aspect ."%";
347
348 if(!file_exists($cache_dir))
349 mkdir($cache_dir,0777);
350
351 $debug = array();
352
353 exec($global_var['external']['magick']
354 .' -geometry '.$resize_aspect.'%'
355 .' -quality '.$resize_quality
356 .' '.$pwd.'/'.$src_image
357 .' '.$pwd.'/'.$global_var['path']['cache_dir'].'/'.$prefix.$src_image, $debug, $ret_val
358 );
359
360 print_r($debug);
361 }
362 }
363 }
364
365
366
367
368 function get_image_index()
369 {
370 global $get_vars, $image_files;
371
372 return array_search($get_vars['img'], $image_files);
373 }
374
375 function get_next_image($pos)
376 {
377 global $get_vars, $image_files;
378
379 $next = $pos + 1;
380
381 if($next >= sizeof($image_files))
382 $next = 0;
383
384 return $image_files[$next];
385 }
386
387 function get_prev_image($pos)
388 {
389 global $get_vars, $image_files;
390
391 $prev = $pos - 1;
392
393 if($prev < 0)
394 $prev = sizeof($image_files) - 1;
395
396 return $image_files[$prev];
397 }
398
399
400 function get_split_path()
401 {
402 global $pwd;
403
404 $split_path = split('/', $pwd);
405
406 return $split_path;
407 }
408 /**
409 * Retirieves all filenames that are images exclude all
410 * other files. It's not recursive so it only examins the
411 * pwd and not sub directories if present.
412 *
413 * @param str $path, pwd
414 * @return @rray $images, list of all filenames
415 */
416 function &get_image_filenames($path)
417 {
418 global $global_var;
419 $images = array();
420
421 if(is_dir($path)) {
422 $pwd_dd = opendir($path);
423 while(($file = readdir($pwd_dd)) !== false) {
424 if(is_file($path."/".$file)
425 && !eregi("^\.|^.*.php|^.*.css|^.*~|^.txt",$file))
426 array_push($images, $file);
427 }
428 }
429 return $images;
430 }
431
432
433
434
435 /**
436 * Retrieves all directory names present in $path. Using
437 * eregi we exclude names we don't want in the list.
438 */
439 function &get_directory_names($path)
440 {
441 global $global_var;
442 $dirs = array();
443
444 if(is_dir($path)) {
445 $pwd_dd = opendir($path);
446 while(($file = readdir($pwd_dd)) !== false) {
447 if(is_dir($path."/".$file)
448 && !eregi("^\.|^\..|^CVS|^". $global_var['path']['thumb_dir']
449 ."|^". $global_var['path']['cache_dir'],$file))
450 array_push($dirs, $file);
451 }
452 }
453 return $dirs;
454 }
455
456
457
458
459
460
461 function create_directory_browser()
462 {
463 global $pwd, $dir_files;
464
465 if(sizeof($dir_files)>0) {
466
467 foreach($dir_files as $dir) {
468
469 $dir_image = 'open.png';
470
471 if(file_exists($pwd.'/'.$dir.'/.htaccess'))
472 $dir_image = 'protected.png';
473
474 echo <<<EOT
475 <div style="text-align: center;">\n
476 <a href="$php_self?dir=$pwd/$dir">\n
477 <img src="../images/$dir_image" alt=""/><br/>$dir\n
478 </a>\n
479 </div>\n
480 EOT;
481 }
482 }
483 }
484
485
486
487
488
489
490 if (isset($get_vars['dir']) && is_dir(rawurldecode($get_vars['dir'])))
491 {
492 $pwd = rawurldecode($get_vars['dir']);
493 } else {
494 $pwd = './';
495 }
496
497 $image_files =& get_image_filenames($pwd);
498 $dir_files =& get_directory_names($pwd);
499
500
501 // print the html header before continuing processing.
502 html_template_header();
503
504 //if($global_var['navigation_bar'])
505 html_template_navbar();
506
507 if(sizeof($image_files) <= 0) {
508 if(sizeof($dir_files) > 0) {
509 create_directory_browser();
510 } else {
511 }
512 } else {
513 if(sizeof($dir_files) > 0) {
514 }
515 if(isset($get_vars['img'])) {
516 show_image();
517 } else {
518 print_thumbnails();
519 }
520 }
521
522
523
524
525 // print the html footer to make it nice and tidy.
526 html_template_footer();
527
528
529
530
531
532
533
534
535
536 /**
537 * Prints the html header, contains html document specific
538 * definitions and paths. Tags as <title> are set dynamically
539 * everytime the page is reloaded. The template is encapsulated
540 * in a function for structural reasons.
541 */
542 function html_template_header()
543 {
544 global $global_var;
545 echo <<<EOF
546 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
547 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
548 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
549
550 <head>
551
552 <meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
553 <meta name="author" content="{$global_var[metadata][author]}" />
554 <meta name="keywords" content="{$global_var[metadata][keywords]}" />
555 <meta name="description" content="{$global_var[metadata][description]}" />
556 <meta name="robots" content="all" />
557
558 <title>expose: </title>
559
560 <style type="text/css">
561 @import "./style.css";
562 </style>
563
564 <link rel="Shortcut Icon" type="image/x-icon" href="/img/favicon.ico" />
565
566 </head>
567
568 <body>
569 <div id="header">\n
570 <h1>expose:</h1>
571 <span style="font-style: italic;"></span>
572 </div>\n
573 <div id="container">\n
574 EOF;
575 }
576
577
578
579
580
581
582
583 /**
584 * Prints the html footer, this contains only closing
585 * tags for the html document and the copyright notice.
586 */
587 function html_template_footer()
588 {
589 global $global_var;
590 echo <<<EOF
591 <div id="copyright">\n
592 {$global_var[str_msg][copyright]}<br />\n
593 <span style="font-style: italic;">\$Revision: 1.7 $</span>\n
594 </div>\n\n
595 </div>\n
596 </body>\n
597 </html>\n
598 EOF;
599 }
600
601
602
603
604
605
606 function html_template_navbar()
607 {
608 global $get_vars;
609 $split_path = get_split_path();
610
611 if(sizeof($split_path) > 0) {
612
613 foreach($split_path as $dir) {
614 if($dir!='') {
615 $path .= $dir.'/';
616 echo <<<EOT
617 <a style="text-decoration: none;" href="$php_self?dir=$path">
618 EOT;
619 if($dir == '.')
620 $dir = 'expose';
621
622 echo <<<EOT
623 $dir</a> &gt;&nbsp;\n
624 EOT;
625 }
626 }
627 if(isset($get_vars['img'])) {
628 echo <<<EOT
629 {$get_vars[img]}
630 EOT;
631 }
632 }
633 }
634
635 ?>

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