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<?php |
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/* vim: set ts=4: |
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+----------------------------------------------------------------------+ |
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| expose, a simple image gallery written in php4. |
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+----------------------------------------------------------------------+ |
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| Copyright 2003 Carl Johan Schedvin |
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| This program is distributed under the terms of the |
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| GNU General Public License, Version 2 |
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| |
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| This program is free software; you can redistribute it and/or modify |
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| it under the terms of the GNU General Public License, Version 2 as |
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| published by the Free Software Foundation. |
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| |
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| This program is distributed in the hope that it will be useful, |
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| but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| GNU General Public License for more details. |
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| |
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| You should have received a copy of the GNU General Public License, |
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| Version 2 along with this program; if not, visit GNU's Home Page |
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| http://www.gnu.org/ |
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+----------------------------------------------------------------------+ |
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$Id: index.php,v 1.4 2003/11/05 15:40:21 cam Exp $ |
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*/ |
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|
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$global_var['metadata']['author'] = "Carl Johan Schedvin <cjsc02@student.bth.se>"; |
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$global_var['metadata']['keywords'] = "photos,gallery,album,digitalcamera,fuji,finepix"; |
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$global_var['metadata']['description'] = "An photogallery written in PHP4"; |
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|
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|
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$global_var['str_msg']['copyright'] = "all photos © copyright Carl Johan Schedvin. all rights reserved."; |
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|
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$global_var['external']['magick'] = "/usr/bin/convert"; |
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|
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$global_var['path']['thumb_dir'] = '.thumbs'; |
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$global_var['path']['cache_dir'] = '.cache'; |
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|
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$global_var['image_sz']['thumb'] = array ( |
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'x' => 120, |
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'y' => 80, |
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'ql' => 70, |
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'wm' => '' |
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); |
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$global_var['image_sz']['640'] = array ( |
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'x' => 640, |
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'y' => 480, |
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'ql' => 88, |
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'wm' => '' |
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); |
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$global_var['image_sz']['800'] = array ( |
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'x' => 800, |
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'y' => 600, |
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'ql' => 89, |
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'wm' => '' |
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); |
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$global_var['image_sz']['1024'] = array ( |
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'x' => 1024, |
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'y' => 768, |
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'ql' => 90, |
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'wm' => '' |
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); |
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|
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$global_var['image_sz']['default'] =& $global_var['image_sz']['640']; |
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|
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$global_var['exif'] = array ( |
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'Make', |
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'ApertureFNumber', |
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'FocalLength', |
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'DateTime', |
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'FlashMode' |
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); |
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$exif_headers = array (); |
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|
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|
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if(isset($_SERVER['PHP_SELF'])) { |
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$php_self = $_SERVER['PHP_SELF']; |
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} else { |
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$php_self = $HTTP_SERVER_VARS['PHP_SELF']; |
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} |
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|
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if (isset($_GET)) { |
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$get_vars = $_GET; |
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} else { |
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$get_vars = $HTTP_GET_VARS; |
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} |
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|
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|
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|
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/** |
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* ! NOT IMPLEMENTED ! |
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* |
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* Extracts the EXIF header of a JPG if available using |
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* built-in php function exif_read_data, this information |
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* is extracted upon request and not written to disk. |
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*/ |
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function extract_exif_data() |
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{ |
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global $global_var, $pwd, $get_vars, $exif_headers; |
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|
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$src_image = $get_vars['img']; |
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$exif_data = @exif_read_data($pwd.'/'.$src_image,0,true); |
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|
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if($exif_data) { |
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|
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foreach($exif_data as $exif_section_key => $exif_section) { |
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foreach($exif_section as $exif_key => $exif_value) { |
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|
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if(array_search($exif_key, $global_var['exif'])) { |
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|
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switch($exif_key) { |
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case 'Make': |
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array_push($exif_headers, 'Model: '.$exif_value); |
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break; |
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|
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case 'ApertureFNumber': |
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array_push($exif_headers, 'Aperture: '. $exif_value); |
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break; |
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|
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case 'FocalLength': |
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array_push($exif_headers, 'Focal Length: '. $exif_value .'mm'); |
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break; |
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|
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case 'DateTime': |
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array_push($exif_headers, 'Date: '.$exif_value); |
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break; |
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|
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case 'FlashMode': |
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switch($exif_value) { |
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case '0': |
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array_push($exif_headers, 'Flash: Off'); |
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break; |
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case '1': |
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array_push($exif_headers, 'Flash: On'); |
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break; |
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} |
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break; |
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|
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default: |
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break; |
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} |
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} |
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} |
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} |
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if(sizeof($exif_headers)>0) { |
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ksort($exif_headers); |
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reset($exif_headers); |
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} |
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} |
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} |
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|
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|
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|
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|
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function create_thumbnail($src_image) |
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{ |
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global $global_var, $pwd; |
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if(isset($global_var['external']['magick'])) { |
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if(file_exists($pwd.'/'.$src_image)) { |
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$src_image_sz = GetImageSize($pwd.'/'.$src_image); |
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$resize_aspect = round(($global_var['image_sz']['thumb']['y'] / $src_image_sz[1])*100, 2); |
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exec($global_var['external']['magick'] |
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.' -geometry '.$resize_aspect.'%' |
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.' -quality '.$global_var['image_sz']['thumb']['ql'] |
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.' '.$pwd.'/'.$src_image |
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.' '.$pwd.'/'.$global_var['path']['thumb_dir'].'/'.$src_image |
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); |
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} |
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} |
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} |
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|
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|
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function print_thumbnails() |
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{ |
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global $global_var, $image_files, $pwd; |
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|
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// check if thumbnail directory exists, if not create it. |
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if(!file_exists($pwd.'/'.$global_var['path']['thumb_dir'])) |
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mkdir($pwd.'/'.$global_var['path']['thumb_dir'],0777); |
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|
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echo <<<EOT |
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<div id="thumbnails_container">\n |
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|
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EOT; |
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|
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foreach($image_files as $image) { |
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|
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$thumb_image = $pwd.'/'.$global_var['path']['thumb_dir'].'/'.$image; |
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|
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// check if a thumbnail for current image exists, if not create one. |
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if(!file_exists($thumb_image)) |
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create_thumbnail($image); |
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|
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$thumb_sz = GetImageSize($thumb_image); |
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|
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echo <<<EOT |
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<div class="thumbnail" style="width: {$thumb_sz[0]}px; height: {$thumb_sz[1]}px;">\n |
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<a href="$php_self?dir=$pwd&img=$image"> |
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<img src="$thumb_image" alt=""/> |
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</a> |
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</div>\n |
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EOT; |
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} |
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|
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echo <<<EOT |
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</div>\n |
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<div style="clear: both;"><br/></div>\n |
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EOT; |
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} |
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|
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|
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|
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|
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function show_image() |
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{ |
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global $global_var, $get_vars, $pwd, $exif_headers; |
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|
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$image = $pwd.'/'.$get_vars['img']; |
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|
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$cached_image = $pwd.'/'.$global_var['path']['cache_dir']; |
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|
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if(file_exists($image)) { |
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|
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$image_size = GetImageSize($image); |
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|
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if(isset($get_var['width'])) { |
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if($get_var['width'] >= $image_size[0]) |
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$cache_image = $image; |
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} else { |
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if(!file_exists($cached_image.'/default_'.$get_vars['img'])) { |
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resize_image('default_'); |
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} |
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$cached_image = $cached_image.'/default_'.$get_vars['img']; |
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} |
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|
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$image_size = GetImageSize($cached_image); |
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|
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extract_exif_data(); |
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|
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if(sizeof($exif_headers) > 0) { |
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|
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$exif_str .= sprintf("<span style=\"font-weight: bold;\">EXIF</span> "); |
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|
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foreach($exif_headers as $exif_tag) { |
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$exif_str .= sprintf("| %s ", $exif_tag); |
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} |
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|
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echo <<<EOT |
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<div id="exif_headers">\n |
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<span>$exif_str</span>\n |
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</div>\n |
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EOT; |
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|
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} |
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|
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|
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echo <<<EOT |
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<div id="image" style="width: {$image_size[0]}px; height: {$image_size[1]}px;">\n |
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<a href="$image" target="_blank"><img src="$cached_image" alt=""></a> |
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</div>\n |
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EOT; |
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|
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$image_index = get_image_index(); |
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$next = get_next_image($image_index); |
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$prev = get_prev_image($image_index); |
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|
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echo <<<EOT |
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<a href="$php_self?dir=$pwd&img=$prev">prev</a> |
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<a href="$php_self?dir=$pwd&img=$next">next</a> |
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EOT; |
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|
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} |
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} |
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|
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|
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|
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|
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function resize_image($prefix) |
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{ |
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global $global_var, $get_vars, $pwd; |
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$src_image = $get_vars['img']; |
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if(isset($global_var['external']['magick'])) { |
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if(file_exists($pwd.'/'.$src_image)) { |
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$src_image_sz = GetImageSize($pwd.'/'.$src_image); |
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$resize_aspect = round(($global_var['image_sz']['default']['y'] / $src_image_sz[1])*100, 2); |
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|
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// DEBUG: print "Quality: ".$global_var['image_sz']['default']['ql'] ." Resize Aspect: ". $resize_aspect ."%"; |
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|
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exec($global_var['external']['magick'] |
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.' -geometry '.$resize_aspect.'%' |
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.' -quality '.$global_var['image_sz']['default']['ql'] |
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.' '.$pwd.'/'.$src_image |
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.' '.$pwd.'/'.$global_var['path']['cache_dir'].'/'.$prefix.$src_image |
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); |
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} |
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} |
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} |
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|
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|
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|
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|
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function get_image_index() |
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{ |
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global $get_vars, $image_files; |
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|
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return array_search($get_vars['img'], $image_files); |
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} |
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|
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function get_next_image($pos) |
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{ |
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global $get_vars, $image_files; |
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|
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$next = $pos + 1; |
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|
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if($next >= sizeof($image_files)) |
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$next = 0; |
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|
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return $image_files[$next]; |
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} |
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|
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function get_prev_image($pos) |
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{ |
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global $get_vars, $image_files; |
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|
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$prev = $pos - 1; |
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|
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if($prev < 0) |
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$prev = sizeof($image_files) - 1; |
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|
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return $image_files[$prev]; |
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} |
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|
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/** |
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* Retirieves all filenames that are images exclude all |
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* other files. It's not recursive so it only examins the |
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* pwd and not sub directories if present. |
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* |
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* @param str $path, pwd |
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* @return @rray $images, list of all filenames |
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*/ |
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function &get_image_filenames($path) |
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{ |
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global $global_var; |
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$images = array(); |
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|
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if(is_dir($path)) { |
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$pwd_dd = opendir($path); |
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while(($file = readdir($pwd_dd)) !== false) { |
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if(is_file($path."/".$file) |
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&& !eregi("^\.|^.*.php|^.*.css|^.*~",$file)) |
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array_push($images, $file); |
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} |
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} |
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return $images; |
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} |
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|
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|
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|
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|
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/** |
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* Retrieves all directory names present in $path. Using |
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* eregi we exclude names we don't want in the list. |
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*/ |
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function &get_directory_names($path) |
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{ |
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global $global_var; |
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$dirs = array(); |
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|
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if(is_dir($path)) { |
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$pwd_dd = opendir($path); |
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while(($file = readdir($pwd_dd)) !== false) { |
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if(is_dir($path."/".$file) |
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&& !eregi("^\.|^\..|^CVS|^". $global_var['path']['thumb_dir'] |
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."|^". $global_var['path']['cache_dir'],$file)) |
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array_push($dirs, $file); |
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} |
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} |
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return $dirs; |
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} |
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|
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|
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|
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|
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if (isset($get_vars['dir']) && is_dir(rawurldecode($get_vars['dir']))) |
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{ |
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$pwd = rawurldecode($get_vars['dir']); |
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} else { |
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$pwd = './'; |
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} |
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|
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$image_files =& get_image_filenames($pwd); |
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$dir_files =& get_directory_names($pwd); |
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|
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|
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// print the html header before continuing processing. |
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html_template_header(); |
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|
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|
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if(sizeof($image_files) <= 0) { |
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if(sizeof($dir_files) > 0) { |
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} else { |
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} |
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} else { |
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if(sizeof($dir_files) > 0) { |
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} |
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if(isset($get_vars['img'])) { |
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show_image(); |
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} else { |
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print_thumbnails(); |
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} |
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} |
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|
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// print the html footer to make it nice and tidy. |
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html_template_footer(); |
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|
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|
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|
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|
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|
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|
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|
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|
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|
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/** |
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* Prints the html header, contains html document specific |
| 425 |
* definitions and paths. Tags as <title> are set dynamically |
| 426 |
* everytime the page is reloaded. The template is encapsulated |
| 427 |
* in a function for structural reasons. |
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*/ |
| 429 |
function html_template_header() |
| 430 |
{ |
| 431 |
global $global_var; |
| 432 |
echo <<<EOF |
| 433 |
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" |
| 434 |
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> |
| 435 |
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" > |
| 436 |
|
| 437 |
<head> |
| 438 |
|
| 439 |
<meta http-equiv="content-type" content="text/html; charset=iso-8859-1" /> |
| 440 |
<meta name="author" content="{$global_var[metadata][author]}" /> |
| 441 |
<meta name="keywords" content="{$global_var[metadata][keywords]}" /> |
| 442 |
<meta name="description" content="{$global_var[metadata][description]}" /> |
| 443 |
<meta name="robots" content="all" /> |
| 444 |
|
| 445 |
<title>expose: </title> |
| 446 |
|
| 447 |
<style type="text/css"> |
| 448 |
@import "/~ikea/style.css"; |
| 449 |
</style> |
| 450 |
|
| 451 |
<link rel="Shortcut Icon" type="image/x-icon" href="/img/favicon.ico" /> |
| 452 |
|
| 453 |
</head> |
| 454 |
|
| 455 |
<body> |
| 456 |
<div id="header">\n |
| 457 |
<h1>expose:</h1> |
| 458 |
<span style="font-style: italic;"></span> |
| 459 |
</div>\n |
| 460 |
<div id="container">\n |
| 461 |
EOF; |
| 462 |
} |
| 463 |
|
| 464 |
|
| 465 |
|
| 466 |
|
| 467 |
/** |
| 468 |
* Prints the html footer, this contains only closing |
| 469 |
* tags for the html document and the copyright notice. |
| 470 |
*/ |
| 471 |
function html_template_footer() |
| 472 |
{ |
| 473 |
global $global_var; |
| 474 |
echo <<<EOF |
| 475 |
<div id="copyright">\n |
| 476 |
{$global_var[str_msg][copyright]}<br /> |
| 477 |
<a href="">expose</a> <span style="font-style: italic;">Cvs version: \$Revision: 1.4 $</span> |
| 478 |
</div> |
| 479 |
</div> |
| 480 |
</body> |
| 481 |
</html> |
| 482 |
EOF; |
| 483 |
} |
| 484 |
?> |
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