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Contents of /expose/index.php

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Revision 1.7 - (show annotations)
Fri Nov 7 22:34:23 2003 UTC (20 years, 6 months ago) by cam
Branch: MAIN
Changes since 1.6: +103 -32 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 1.6 2003/11/06 14:26:31 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] / $src_image_sz[1])*100, 2);
344 }
345
346 print "Quality: ".$global_var['image_sz']['default']['ql'] ." Resize Aspect: ". $resize_aspect ."%";
347 if(!file_exists($cache_dir))
348 mkdir($cache_dir,0777);
349
350 $debug = array();
351
352 exec($global_var['external']['magick']
353 .' -geometry '.$resize_aspect.'%'
354 .' -quality '.$resize_quality
355 .' '.$pwd.'/'.$src_image
356 .' '.$pwd.'/'.$global_var['path']['cache_dir'].'/'.$prefix.$src_image, $debug, $ret_val
357 );
358
359 print_r($debug);
360 }
361 }
362 }
363
364
365
366
367 function get_image_index()
368 {
369 global $get_vars, $image_files;
370
371 return array_search($get_vars['img'], $image_files);
372 }
373
374 function get_next_image($pos)
375 {
376 global $get_vars, $image_files;
377
378 $next = $pos + 1;
379
380 if($next >= sizeof($image_files))
381 $next = 0;
382
383 return $image_files[$next];
384 }
385
386 function get_prev_image($pos)
387 {
388 global $get_vars, $image_files;
389
390 $prev = $pos - 1;
391
392 if($prev < 0)
393 $prev = sizeof($image_files) - 1;
394
395 return $image_files[$prev];
396 }
397
398
399 function get_split_path()
400 {
401 global $pwd;
402
403 $split_path = split('/', $pwd);
404
405 return $split_path;
406 }
407 /**
408 * Retirieves all filenames that are images exclude all
409 * other files. It's not recursive so it only examins the
410 * pwd and not sub directories if present.
411 *
412 * @param str $path, pwd
413 * @return @rray $images, list of all filenames
414 */
415 function &get_image_filenames($path)
416 {
417 global $global_var;
418 $images = array();
419
420 if(is_dir($path)) {
421 $pwd_dd = opendir($path);
422 while(($file = readdir($pwd_dd)) !== false) {
423 if(is_file($path."/".$file)
424 && !eregi("^\.|^.*.php|^.*.css|^.*~|^.txt",$file))
425 array_push($images, $file);
426 }
427 }
428 return $images;
429 }
430
431
432
433
434 /**
435 * Retrieves all directory names present in $path. Using
436 * eregi we exclude names we don't want in the list.
437 */
438 function &get_directory_names($path)
439 {
440 global $global_var;
441 $dirs = array();
442
443 if(is_dir($path)) {
444 $pwd_dd = opendir($path);
445 while(($file = readdir($pwd_dd)) !== false) {
446 if(is_dir($path."/".$file)
447 && !eregi("^\.|^\..|^CVS|^". $global_var['path']['thumb_dir']
448 ."|^". $global_var['path']['cache_dir'],$file))
449 array_push($dirs, $file);
450 }
451 }
452 return $dirs;
453 }
454
455
456
457
458
459
460 function create_directory_browser()
461 {
462 global $pwd, $dir_files;
463
464 if(sizeof($dir_files)>0) {
465
466 foreach($dir_files as $dir) {
467
468 $dir_image = 'open.png';
469
470 if(file_exists($pwd.'/'.$dir.'/.htaccess'))
471 $dir_image = 'protected.png';
472
473 echo <<<EOT
474 <div style="text-align: center;">\n
475 <a href="$php_self?dir=$pwd/$dir">\n
476 <img src="../images/$dir_image" alt=""/><br/>$dir\n
477 </a>\n
478 </div>\n
479 EOT;
480 }
481 }
482 }
483
484
485
486
487
488
489 if (isset($get_vars['dir']) && is_dir(rawurldecode($get_vars['dir'])))
490 {
491 $pwd = rawurldecode($get_vars['dir']);
492 } else {
493 $pwd = './';
494 }
495
496 $image_files =& get_image_filenames($pwd);
497 $dir_files =& get_directory_names($pwd);
498
499
500 // print the html header before continuing processing.
501 html_template_header();
502
503 //if($global_var['navigation_bar'])
504 html_template_navbar();
505
506 if(sizeof($image_files) <= 0) {
507 if(sizeof($dir_files) > 0) {
508 create_directory_browser();
509 } else {
510 }
511 } else {
512 if(sizeof($dir_files) > 0) {
513 }
514 if(isset($get_vars['img'])) {
515 show_image();
516 } else {
517 print_thumbnails();
518 }
519 }
520
521
522
523
524 // print the html footer to make it nice and tidy.
525 html_template_footer();
526
527
528
529
530
531
532
533
534
535 /**
536 * Prints the html header, contains html document specific
537 * definitions and paths. Tags as <title> are set dynamically
538 * everytime the page is reloaded. The template is encapsulated
539 * in a function for structural reasons.
540 */
541 function html_template_header()
542 {
543 global $global_var;
544 echo <<<EOF
545 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
546 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
547 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
548
549 <head>
550
551 <meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
552 <meta name="author" content="{$global_var[metadata][author]}" />
553 <meta name="keywords" content="{$global_var[metadata][keywords]}" />
554 <meta name="description" content="{$global_var[metadata][description]}" />
555 <meta name="robots" content="all" />
556
557 <title>expose: </title>
558
559 <style type="text/css">
560 @import "./style.css";
561 </style>
562
563 <link rel="Shortcut Icon" type="image/x-icon" href="/img/favicon.ico" />
564
565 </head>
566
567 <body>
568 <div id="header">\n
569 <h1>expose:</h1>
570 <span style="font-style: italic;"></span>
571 </div>\n
572 <div id="container">\n
573 EOF;
574 }
575
576
577
578
579
580
581
582 /**
583 * Prints the html footer, this contains only closing
584 * tags for the html document and the copyright notice.
585 */
586 function html_template_footer()
587 {
588 global $global_var;
589 echo <<<EOF
590 <div id="copyright">\n
591 {$global_var[str_msg][copyright]}<br />\n
592 <a href="">expose</a>\n <span style="font-style: italic;">\$Revision: 1.6 $</span>\n
593 </div>\n\n
594 </div>\n
595 </body>\n
596 </html>\n
597 EOF;
598 }
599
600
601
602
603
604
605 function html_template_navbar()
606 {
607 global $get_vars;
608 $split_path = get_split_path();
609
610 if(sizeof($split_path) > 0) {
611
612 foreach($split_path as $dir) {
613 if($dir!='') {
614 $path .= $dir.'/';
615 echo <<<EOT
616 <a style="text-decoration: none;" href="$php_self?dir=$path">
617 EOT;
618 if($dir == '.')
619 $dir = 'expose';
620
621 echo <<<EOT
622 $dir</a> &gt;&nbsp;\n
623 EOT;
624 }
625 }
626 if(isset($get_vars['img'])) {
627 echo <<<EOT
628 {$get_vars[img]}
629 EOT;
630 }
631 }
632 }
633
634 ?>

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