118 lines
2.3 KiB
PHP
118 lines
2.3 KiB
PHP
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<?php
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$quickPath = isset($_SERVER["PATH_INFO"])?$_SERVER["PATH_INFO"]:"";
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$scriptPath = $_SERVER["SCRIPT_NAME"];
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$quickDir = dirname($quickPath);
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$realDir = "images$quickDir";
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$files = scandir($realDir);
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$size = count($files);
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$pos = array_search(basename($quickPath),$files);
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$nextImage = '';
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for ($next=$pos+1; $nextImage === '' and $next<$size ; $next++) {
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$mime = mime_content_type("$realDir/$files[$next]");
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if ($mime == "image/jpeg")
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$nextImage = $files[$next];
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}
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$prevImage = '';
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for ($prev=$pos-1; $prevImage === '' and $prev>=0 ; $prev--) {
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$mime = mime_content_type("$realDir/$files[$prev]");
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if ($mime == "image/jpeg")
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$prevImage = $files[$prev];
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}
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$imageUrl = dirname($scriptPath)."/images$quickPath";
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if ($nextImage === '') {
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$nextImageUrl = '';
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$nextPageUrl = '';
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} else {
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$nextImageUrl = dirname($scriptPath)."/images".dirname($quickPath)."/$nextImage";
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$nextPageUrl = dirname($_SERVER["REQUEST_URI"])."/$nextImage";
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}
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if ($prevImage === '') $prevPageUrl = '';
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else $prevPageUrl = dirname($_SERVER["REQUEST_URI"])."/$prevImage";
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$directoryUrl = dirname($_SERVER["SCRIPT_NAME"])."/index".dirname($quickPath);
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header('Content-Type: text/html; charset=utf-8');
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header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + 3600));
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?>
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<html>
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<head>
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<style type="text/css">
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html, body {
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height: 100%;
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}
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body {
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margin: 0;
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text-align: center;
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background: black;
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color: white;
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}
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#theimage {
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max-width: 100%;
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max-height: 100%;
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}
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a {
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color: white;
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text-decoration: none;
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}
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#next, #previous, #up {
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position: fixed;
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font-size: 4em;
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font-weight: bold;
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}
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#up {
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top: 0;
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left: 0;
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}
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#next {
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top: 50%;
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right: -0;
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}
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#previous {
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top: 50%;
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left: 0;
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}
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img {
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border: 0;
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}
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</style>
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<?php if ($nextImageUrl !== '') { ?>
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<link rel="prefetch" href="<?php echo $nextImageUrl ?>" />
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<link rel="prefetch" href="<?php echo $nextPageUrl ?>" />
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<?php } ?>
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</head>
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<body>
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<a href="<?php echo $imageUrl ?>"><img src="<?php echo $imageUrl ?>" id="theimage" /></a>
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<div id="up">
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<a href="<?php echo $directoryUrl ?>" title="Back to directory">^</a>
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</div>
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<?php if ($nextPageUrl !== '') { ?>
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<div id="next">
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<a href="<?php echo $nextPageUrl ?>" title="Next image">></a>
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</div>
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<?php } ?>
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<?php if ($prevPageUrl !== '') { ?>
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<div id="previous">
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<a href="<?php echo $nextPageUrl ?>" title="Previous image"><</a>
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</div>
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<?php } ?>
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</body>
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</html>
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