cvs/expose/index.php

<?php
/* vim: set ts=4:
+----------------------------------------------------------------------+
| expose, a simple image gallery written in php4. 
+----------------------------------------------------------------------+
| Copyright 2003 Carl Johan Schedvin
| This program is distributed under the terms of the
| GNU General Public License, Version 2
|
| This program is free software; you can redistribute it and/or modify
| it under the terms of the GNU General Public License, Version 2 as
| published by the Free Software Foundation.
|
| This program is distributed in the hope that it will be useful,
| but WITHOUT ANY WARRANTY; without even the implied warranty of
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
| GNU General Public License for more details.
|
| You should have received a copy of the GNU General Public License,
| Version 2 along with this program; if not, visit GNU's Home Page
| http://www.gnu.org/
+----------------------------------------------------------------------+
$Id: index.php,v 1.3 2003/11/05 14:21:33 cam Exp $
*/

$global_var['metadata']['author'] = "Carl Johan Schedvin <cjsc02@student.bth.se>";
$global_var['metadata']['keywords'] = "photos,gallery,album,digitalcamera,fuji,finepix";
$global_var['metadata']['description'] = "An photogallery written in PHP4";


$global_var['str_msg']['copyright'] = "all photos &copy; copyright Carl Johan Schedvin. all rights reserved.";

$global_var['external']['magick'] = "/usr/bin/convert";

$global_var['path']['thumb_dir'] = '.thumbs';
$global_var['path']['cache_dir'] = '.cache';

$global_var['image_sz']['thumb'] = array        (
                                                                                'x'             =>      120,
                                                                                'y'             =>      80,
                                                                                'ql'    =>      70,
                                                                                'wm'    =>      ''
                                                                                        );
$global_var['image_sz']['640'] = array  (
                                                                        'x'             =>      640,
                                                                        'y'             =>      480,
                                                                        'ql'    =>      88,
                                                                        'wm'    =>      ''
                                                                                );
$global_var['image_sz']['800'] = array  (
                                                                        'x'             =>      800,
                                                                        'y'             =>      600,
                                                                        'ql'    =>      89,
                                                                        'wm'    =>      ''
                                                                                );
$global_var['image_sz']['1024'] = array (
                                                                        'x'             =>      1024,
                                                                        'y'             =>      768,
                                                                        'ql'    =>      90,
                                                                        'wm'    =>      ''
                                                                                );

$global_var['image_sz']['default']      =& $global_var['image_sz']['640'];

if(isset($_SERVER['PHP_SELF'])) {
        $php_self = $_SERVER['PHP_SELF'];
} else {
        $php_self = $HTTP_SERVER_VARS['PHP_SELF'];
}

if (isset($_GET)) {
        $get_vars = $_GET;
} else {
        $get_vars = $HTTP_GET_VARS;
}


/**
 * ! NOT IMPLEMENTED !
 *
 * Extracts the EXIF header of a JPG if available using
 * built-in php function exif_read_data, this information
 * is extracted upon request and not written to disk.
 */
function extract_exif_data()
{
}


function create_thumbnail($src_image)
{
        global $global_var, $pwd;
        if(isset($global_var['external']['magick'])) {
                if(file_exists($pwd.'/'.$src_image)) {
                        $src_image_sz = GetImageSize($pwd.'/'.$src_image);
                        $resize_aspect = round(($global_var['image_sz']['thumb']['y'] / $src_image_sz[1])*100, 2);
                        exec($global_var['external']['magick']
                                .' -geometry '.$resize_aspect.'%'
                                .' -quality '.$global_var['image_sz']['thumb']['ql']
                                .' '.$pwd.'/'.$src_image
                                .' '.$pwd.'/'.$global_var['path']['thumb_dir'].'/'.$src_image
                                );
                }       
        }               
}


function print_thumbnails()
{
        global $global_var, $image_files, $pwd;

        // check if thumbnail directory exists, if not create it.
        if(!file_exists($pwd.'/'.$global_var['path']['thumb_dir']))
                mkdir($pwd.'/'.$global_var['path']['thumb_dir'],0777);

        echo <<<EOT
                <div id="thumbnails_container">\n
                
EOT;

        foreach($image_files as $image) {

                $thumb_image = $pwd.'/'.$global_var['path']['thumb_dir'].'/'.$image;

                // check if a thumbnail for current image exists, if not create one.                                    
                if(!file_exists($thumb_image))
                        create_thumbnail($image);

                $thumb_sz = GetImageSize($thumb_image);
        
                echo <<<EOT
                        <div class="thumbnail" style="width: {$thumb_sz[0]}px; height: {$thumb_sz[1]}px;">\n
                                <a href="$php_self?dir=$pwd&img=$image">
                                        <img src="$thumb_image" alt=""/>
                                </a>
                        </div>\n
EOT;
        }

        echo <<<EOT
                </div>\n                
                <div style="clear: both;"><br/></div>\n
EOT;
}


function show_image()
{
        global $global_var, $get_vars, $pwd;

        $image = $pwd.'/'.$get_vars['img'];

        $cached_image = $pwd.'/'.$global_var['path']['cache_dir'];

        if(file_exists($image)) {

                $image_size = GetImageSize($image);

                if(isset($get_var['width'])) {
                        if($get_var['width'] >= $image_size[0])
                                $cache_image = $image;
                } else {
                        if(!file_exists($cached_image.'/default_'.$get_vars['img'])) {
                                resize_image('default_');
                        }
                        $cached_image = $cached_image.'/default_'.$get_vars['img'];
                }

                $image_size = GetImageSize($cached_image);

                echo <<<EOT
                        <div id="image" style="width: {$image_size[0]}px; height: {$image_size[1]}px;">\n
                                <a href="$image" target="_blank"><img src="$cached_image" alt=""></a>
                        </div>\n
EOT;
        }
}


function resize_image($prefix)
{
        global $global_var, $get_vars, $pwd;
        $src_image = $get_vars['img'];
        if(isset($global_var['external']['magick'])) {
                if(file_exists($pwd.'/'.$src_image)) {
                        $src_image_sz = GetImageSize($pwd.'/'.$src_image);
                        $resize_aspect = round(($global_var['image_sz']['default']['y'] / $src_image_sz[1])*100, 2);

                        // DEBUG: print "Quality: ".$global_var['image_sz']['default']['ql'] ." Resize Aspect: ". $resize_aspect ."%";

                        exec($global_var['external']['magick']
                                .' -geometry '.$resize_aspect.'%'
                                .' -quality '.$global_var['image_sz']['default']['ql']
                                .' '.$pwd.'/'.$src_image
                                .' '.$pwd.'/'.$global_var['path']['cache_dir'].'/'.$prefix.$src_image
                                );
                }       
        }       
}


/**
 * Retirieves all filenames that are images exclude all
 * other files. It's not recursive so it only examins the
 * pwd and not sub directories if present.
 *
 * @param       str             $path,          pwd
 * @return      @rray   $images,        list of all filenames
 */
function &get_image_filenames($path)
{
        global $global_var;
        $images = array();

        if(is_dir($path)) {             
                $pwd_dd = opendir($path);
                while(($file = readdir($pwd_dd)) !== false) {                   
                        if(is_file($path."/".$file) 
                                && !eregi("^\.|^.*.php|^.*.css|^.*~",$file))
                                        array_push($images, $file);
                }
        }
        return $images;
}


/**
 * Retrieves all directory names present in $path. Using
 * eregi we exclude names we don't want in the list.
 */
function &get_directory_names($path)
{
        global $global_var;
        $dirs = array();

        if(is_dir($path)) {             
                $pwd_dd = opendir($path);
                while(($file = readdir($pwd_dd)) !== false) {                   
                        if(is_dir($path."/".$file)
                                && !eregi("^\.|^\..|^CVS|^". $global_var['path']['thumb_dir']
                                                        ."|^". $global_var['path']['cache_dir'],$file))
                                array_push($dirs, $file);
                }
        }
        return $dirs;
}


if (isset($get_vars['dir']) && is_dir(rawurldecode($get_vars['dir'])))
{
        $pwd = rawurldecode($get_vars['dir']);
} else {
        $pwd = './';
}

$image_files =& get_image_filenames($pwd);
$dir_files =& get_directory_names($pwd);


// print the html header before continuing processing.
html_template_header();


if(sizeof($image_files) <= 0) {
        if(sizeof($dir_files) > 0) {
        } else {
        }
} else {
        if(sizeof($dir_files) > 0) {
        }       
        if(isset($get_vars['img'])) {
                show_image();
        } else {
                print_thumbnails();
        }
}

// print the html footer to make it nice and tidy.
html_template_footer();


/**
 * Prints the html header, contains html document specific
 * definitions and paths. Tags as <title> are set dynamically
 * everytime the page is reloaded. The template is encapsulated
 * in a function for structural reasons.
 */
function html_template_header()
{
        global $global_var;
echo <<<EOF
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >

<head>

        <meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
        <meta name="author" content="{$global_var[metadata][author]}" />
        <meta name="keywords" content="{$global_var[metadata][keywords]}" />
        <meta name="description" content="{$global_var[metadata][description]}" />
        <meta name="robots" content="all" />
        
        <title>expose: </title>
        
        <style type="text/css">
                @import "/~ikea/style.css";
        </style>
        
        <link rel="Shortcut Icon" type="image/x-icon" href="/img/favicon.ico" />        
        
</head>

<body>

<div id="container">\n
EOF;
}


/**
 * Prints the html footer, this contains only closing
 * tags for the html document and the copyright notice.
 */
function html_template_footer()
{
        global $global_var;
echo <<<EOF
        <div id="copyright">\n
                {$global_var[str_msg][copyright]}<br />
                <a href="">expose</a> <span style="font-style: italic;">Cvs version: \$Revision: 1.3 $</span>
        </div>
</div>
</body>
</html>
EOF;
}
?>
1	cam	1.1	<?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	cam	1.4	$Id: index.php,v 1.3 2003/11/05 14:21:33 cam Exp $
24	cam	1.1	*/
25
26			$global_var['metadata']['author'] = "Carl Johan Schedvin <cjsc02@student.bth.se>";
27			$global_var['metadata']['keywords'] = "photos,gallery,album,digitalcamera,fuji,finepix";
28			$global_var['metadata']['description'] = "An photogallery written in PHP4";
29
30
31			$global_var['str_msg']['copyright'] = "all photos © copyright Carl Johan Schedvin. all rights reserved.";
32
33			$global_var['external']['magick'] = "/usr/bin/convert";
34
35			$global_var['path']['thumb_dir'] = '.thumbs';
36			$global_var['path']['cache_dir'] = '.cache';
37
38			$global_var['image_sz']['thumb'] = array (
39			'x' => 120,
40			'y' => 80,
41			'ql' => 70,
42			'wm' => ''
43			);
44			$global_var['image_sz']['640'] = array (
45			'x' => 640,
46			'y' => 480,
47			'ql' => 88,
48			'wm' => ''
49			);
50			$global_var['image_sz']['800'] = array (
51			'x' => 800,
52			'y' => 600,
53			'ql' => 89,
54			'wm' => ''
55			);
56			$global_var['image_sz']['1024'] = array (
57			'x' => 1024,
58			'y' => 768,
59			'ql' => 90,
60			'wm' => ''
61			);
62
63	cam	1.4	$global_var['image_sz']['default'] =& $global_var['image_sz']['640'];
64	cam	1.1
65			if(isset($_SERVER['PHP_SELF'])) {
66			$php_self = $_SERVER['PHP_SELF'];
67			} else {
68			$php_self = $HTTP_SERVER_VARS['PHP_SELF'];
69			}
70
71			if (isset($_GET)) {
72			$get_vars = $_GET;
73			} else {
74			$get_vars = $HTTP_GET_VARS;
75			}
76
77
78
79			/**
80			* ! NOT IMPLEMENTED !
81			*
82			* Extracts the EXIF header of a JPG if available using
83			* built-in php function exif_read_data, this information
84			* is extracted upon request and not written to disk.
85			*/
86			function extract_exif_data()
87			{
88			}
89
90
91
92
93			function create_thumbnail($src_image)
94			{
95			global $global_var, $pwd;
96			if(isset($global_var['external']['magick'])) {
97			if(file_exists($pwd.'/'.$src_image)) {
98			$src_image_sz = GetImageSize($pwd.'/'.$src_image);
99			$resize_aspect = round(($global_var['image_sz']['thumb']['y'] / $src_image_sz[1])*100, 2);
100			exec($global_var['external']['magick']
101			.' -geometry '.$resize_aspect.'%'
102			.' -quality '.$global_var['image_sz']['thumb']['ql']
103			.' '.$pwd.'/'.$src_image
104			.' '.$pwd.'/'.$global_var['path']['thumb_dir'].'/'.$src_image
105			);
106			}
107			}
108			}
109
110
111			function print_thumbnails()
112			{
113			global $global_var, $image_files, $pwd;
114
115			// check if thumbnail directory exists, if not create it.
116			if(!file_exists($pwd.'/'.$global_var['path']['thumb_dir']))
117			mkdir($pwd.'/'.$global_var['path']['thumb_dir'],0777);
118
119	cam	1.4	echo <<<EOT
120			<div id="thumbnails_container">\n
121
122			EOT;
123
124	cam	1.1	foreach($image_files as $image) {
125
126	cam	1.4	$thumb_image = $pwd.'/'.$global_var['path']['thumb_dir'].'/'.$image;
127
128	cam	1.1	// check if a thumbnail for current image exists, if not create one.
129	cam	1.4	if(!file_exists($thumb_image))
130	cam	1.1	create_thumbnail($image);
131
132	cam	1.4	$thumb_sz = GetImageSize($thumb_image);
133
134	cam	1.1	echo <<<EOT
135	cam	1.4	<div class="thumbnail" style="width: {$thumb_sz[0]}px; height: {$thumb_sz[1]}px;">\n
136			<a href="$php_self?dir=$pwd&img=$image">
137			<img src="$thumb_image" alt=""/>
138			</a>
139			</div>\n
140	cam	1.1	EOT;
141			}
142	cam	1.4
143			echo <<<EOT
144			</div>\n
145			<div style="clear: both;"><br/></div>\n
146			EOT;
147	cam	1.1	}
148
149
150
151
152			function show_image()
153			{
154			global $global_var, $get_vars, $pwd;
155
156	cam	1.4	$image = $pwd.'/'.$get_vars['img'];
157
158			$cached_image = $pwd.'/'.$global_var['path']['cache_dir'];
159
160			if(file_exists($image)) {
161
162			$image_size = GetImageSize($image);
163
164			if(isset($get_var['width'])) {
165			if($get_var['width'] >= $image_size[0])
166			$cache_image = $image;
167			} else {
168			if(!file_exists($cached_image.'/default_'.$get_vars['img'])) {
169			resize_image('default_');
170			}
171			$cached_image = $cached_image.'/default_'.$get_vars['img'];
172			}
173
174			$image_size = GetImageSize($cached_image);
175
176	cam	1.1	echo <<<EOT
177	cam	1.4	<div id="image" style="width: {$image_size[0]}px; height: {$image_size[1]}px;">\n
178			<a href="$image" target="_blank"><img src="$cached_image" alt=""></a>
179	cam	1.1	</div>\n
180			EOT;
181			}
182			}
183
184
185
186
187	cam	1.4	function resize_image($prefix)
188	cam	1.1	{
189	cam	1.4	global $global_var, $get_vars, $pwd;
190			$src_image = $get_vars['img'];
191			if(isset($global_var['external']['magick'])) {
192			if(file_exists($pwd.'/'.$src_image)) {
193			$src_image_sz = GetImageSize($pwd.'/'.$src_image);
194			$resize_aspect = round(($global_var['image_sz']['default']['y'] / $src_image_sz[1])*100, 2);
195
196			// DEBUG: print "Quality: ".$global_var['image_sz']['default']['ql'] ." Resize Aspect: ". $resize_aspect ."%";
197
198			exec($global_var['external']['magick']
199			.' -geometry '.$resize_aspect.'%'
200			.' -quality '.$global_var['image_sz']['default']['ql']
201			.' '.$pwd.'/'.$src_image
202			.' '.$pwd.'/'.$global_var['path']['cache_dir'].'/'.$prefix.$src_image
203			);
204			}
205			}
206	cam	1.1	}
207
208
209			/**
210			* Retirieves all filenames that are images exclude all
211			* other files. It's not recursive so it only examins the
212			* pwd and not sub directories if present.
213			*
214			* @param str $path, pwd
215			* @return @rray $images, list of all filenames
216			*/
217			function &get_image_filenames($path)
218			{
219			global $global_var;
220			$images = array();
221
222			if(is_dir($path)) {
223			$pwd_dd = opendir($path);
224			while(($file = readdir($pwd_dd)) !== false) {
225			if(is_file($path."/".$file)
226			&& !eregi("^\.\|^..php\|^..css\|^.*~",$file))
227			array_push($images, $file);
228			}
229			}
230			return $images;
231			}
232
233
234
235	cam	1.4
236	cam	1.1	/**
237			* Retrieves all directory names present in $path. Using
238			* eregi we exclude names we don't want in the list.
239			*/
240			function &get_directory_names($path)
241			{
242			global $global_var;
243			$dirs = array();
244
245			if(is_dir($path)) {
246			$pwd_dd = opendir($path);
247			while(($file = readdir($pwd_dd)) !== false) {
248			if(is_dir($path."/".$file)
249	cam	1.2	&& !eregi("^\.\|^\..\|^CVS\|^". $global_var['path']['thumb_dir']
250	cam	1.1	."\|^". $global_var['path']['cache_dir'],$file))
251			array_push($dirs, $file);
252			}
253			}
254			return $dirs;
255			}
256
257
258
259	cam	1.4
260	cam	1.1	if (isset($get_vars['dir']) && is_dir(rawurldecode($get_vars['dir'])))
261			{
262			$pwd = rawurldecode($get_vars['dir']);
263			} else {
264			$pwd = './';
265			}
266
267			$image_files =& get_image_filenames($pwd);
268			$dir_files =& get_directory_names($pwd);
269
270
271			// print the html header before continuing processing.
272			html_template_header();
273
274
275			if(sizeof($image_files) <= 0) {
276			if(sizeof($dir_files) > 0) {
277			} else {
278			}
279			} else {
280			if(sizeof($dir_files) > 0) {
281			}
282			if(isset($get_vars['img'])) {
283			show_image();
284			} else {
285			print_thumbnails();
286			}
287			}
288
289			// print the html footer to make it nice and tidy.
290			html_template_footer();
291
292
293
294
295
296
297
298
299
300			/**
301			* Prints the html header, contains html document specific
302			* definitions and paths. Tags as <title> are set dynamically
303			* everytime the page is reloaded. The template is encapsulated
304			* in a function for structural reasons.
305			*/
306			function html_template_header()
307			{
308			global $global_var;
309			echo <<<EOF
310			<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
311			"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
312			<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
313
314			<head>
315
316			<meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
317			<meta name="author" content="{$global_var[metadata][author]}" />
318			<meta name="keywords" content="{$global_var[metadata][keywords]}" />
319			<meta name="description" content="{$global_var[metadata][description]}" />
320			<meta name="robots" content="all" />
321
322	cam	1.4	<title>expose: </title>
323	cam	1.1
324			<style type="text/css">
325			@import "/~ikea/style.css";
326			</style>
327
328			<link rel="Shortcut Icon" type="image/x-icon" href="/img/favicon.ico" />
329
330			</head>
331
332			<body>
333
334			<div id="container">\n
335			EOF;
336			}
337
338
339
340
341			/**
342			* Prints the html footer, this contains only closing
343			* tags for the html document and the copyright notice.
344			*/
345			function html_template_footer()
346			{
347			global $global_var;
348			echo <<<EOF
349			<div id="copyright">\n
350	cam	1.3	{$global_var[str_msg][copyright]}<br />
351	cam	1.4	<a href="">expose</a> <span style="font-style: italic;">Cvs version: \$Revision: 1.3 $</span>
352	cam	1.1	</div>
353			</div>
354			</body>
355			</html>
356			EOF;
357			}
358			?>