some styling
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		@@ -158,7 +158,7 @@ function linkorselect($link, $img, $filename) {
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    echo '<input type="checkbox" id="'.htmlentities($filename).'" name="elements[]" value="'.htmlentities($filename).'" />';
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    echo '<label for="'.htmlentities($filename).'"><img src="'.$img.'" alt="'.htmlentities($filename).'"/></label>';
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  } else {
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    makelink($link, $img, $filename);
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    makelink($link, $img, $filename, 'class="thumbnail"');
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  }
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}
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if (!isset($_REQUEST['secret'])) {
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@@ -234,6 +234,8 @@ if (!isset($_REQUEST['secret'])) {
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<html>
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  <header>
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    <meta charset="utf-8">
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    <meta name="viewport" content="width=device-width, initial-scale=1.0">
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    <link rel="stylesheet" href="style.css">
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  </header>
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  <body>
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    <?php 
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@@ -269,7 +271,7 @@ if (!isset($_REQUEST['secret'])) {
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      }
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    } else {
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      ?>
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        <h1>Gallery: <?php echo htmlentities($username).' @ '.htmlentities($subpath) ?></h1>
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        <h1>Gallery: <?php echo htmlentities($username).($subpath?'@'.htmlentities($subpath):'') ?></h1>
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        <?php
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        if (isset($_REQUEST['share'])) {
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          echo '<a href="?path='.urlencode($subpath).'"><img src="?folder=←" alt="←"/></a><br/>';
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@@ -327,45 +329,45 @@ if (!isset($_REQUEST['secret'])) {
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          </form>
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          <?php
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            foreach ($key['elements'] as $f)
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              makelink('?path='.urlencode($subpath).'&file='.urlencode($f).'&view', '?path='.urlencode($subpath).'&file='.urlencode($f).'&thumb', $f);
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        } else {
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          if (isset($_REQUEST['view'])) { // view single image
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            $objects = extractDir($imagepath);
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            $pos = array_search($imgfile, $objects['files']);
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            if ($pos>0) 
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              echo '<a href="?path='.urlencode($subpath).'&file='.urlencode($objects['files'][$pos-1]).'&view"><img src="?folder=←" alt="previous"/></a>';
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            echo '<a href="?path='.urlencode($subpath).'"><img src="?folder=↑" alt="↑"/></a>';
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            if ($pos<count($objects['files'])-1) 
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              echo '<a href="?path='.urlencode($subpath).'&file='.urlencode($objects['files'][$pos+1]).'&view"><img src="?folder=→" alt="next"/></a>';
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            echo '<div class="image"><img style="width: 100%" src="?path='.urlencode($subpath).'&file='.urlencode($imgfile).'" alt="'.urlencode($imgfile).'"/></div>';
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            if ($pos!==NULL) {
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              $lower = max(0, $pos-floor(((int)$preview_num)/2));
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              $higher = min(count($objects['files']), $lower+((int)$preview_num));
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              for ($i=$lower; $i<$higher; ++$i)
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                makelink('?path='.urlencode($subpath).'&file='.urlencode($objects['files'][$i]).'&view', '?path='.urlencode($subpath).'&file='.urlencode($objects['files'][$i]).'&thumb', $objects['files'][$i], 'style="width: '.round(100/($higher-$lower), 3).'%"');
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            }
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          } else { // gallery view
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            if (isset($_REQUEST['select'])) {
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              echo '<a href="?path='.urlencode($subpath).'">Normal-Modus</a>';
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              echo '<form method="POST">';
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              echo '<input type="hidden" name="path" value="'.htmlentities($subpath).'">';
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              echo '<label for="password">Passwort:</label>';
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              echo '<input type="text" size="5" name="password" value="'.substr(str_shuffle(strtolower(sha1(rand().time()."SeAG6"))),0,4).'">';
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              echo '<label for="valid-until">Gültig bis:</label>';
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              echo '<input type="date" size="10" name="valid-until" max="'.date('Y-m-d', time()+((int)$max_validity_days)*86400).'" value="'.date('Y-m-d', time()+14*86400).'"/>';
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              echo '<input type="submit" name="share" value="Teilen"/>';
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            } else {
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              echo '<a href="?path='.urlencode($subpath).'&select">Auswahl-Modus</a>';
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            }
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            echo '<div class="dirs">';
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            if (preg_match('/\//', $subpath)) {
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              echo '<a href="?path='.urlencode(preg_replace('/\/[^\/]+$/', '', $subpath)).'"><img src="?folder=↑" alt="↑"/></a>';
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            } elseif ($subpath!="") {
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              echo '<a href="?"><img src="?folder=↑" alt="↑"/></a>';
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            }
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            $objects = extractDir($imagepath);
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            foreach ($objects['dirs'] as $f)
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              makelink('?path='.urlencode($subpath.($subpath!=""?'/':'').$f), '?path='.urlencode($subpath).'&folder='.urlencode($f), $f);
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          makelink('?path='.urlencode($subpath).'&file='.urlencode($f).'&view', '?path='.urlencode($subpath).'&file='.urlencode($f).'&thumb', $f, 'class="thumbnail"');
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          } else {
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            if (isset($_REQUEST['view'])) { // view single image
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              $objects = extractDir($imagepath);
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              $pos = array_search($imgfile, $objects['files']);
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              if ($pos>0) 
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                echo '<a href="?path='.urlencode($subpath).'&file='.urlencode($objects['files'][$pos-1]).'&view"><img src="?folder=←" alt="previous"/></a>';
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              echo '<a href="?path='.urlencode($subpath).'"><img src="?folder=↑" alt="up"/></a>';
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              if ($pos<count($objects['files'])-1) 
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                echo '<a href="?path='.urlencode($subpath).'&file='.urlencode($objects['files'][$pos+1]).'&view"><img src="?folder=→" alt="next"/></a>';
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              echo '<img class="image" src="?path='.urlencode($subpath).'&file='.urlencode($imgfile).'" alt="'.urlencode($imgfile).'"/>';
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              if ($pos!==NULL) {
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                $lower = max(0, $pos-floor(((int)$preview_num)/2));
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                $higher = min(count($objects['files']), $lower+((int)$preview_num));
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                for ($i=$lower; $i<$higher; ++$i)
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                  makelink('?path='.urlencode($subpath).'&file='.urlencode($objects['files'][$i]).'&view', '?path='.urlencode($subpath).'&file='.urlencode($objects['files'][$i]).'&thumb', $objects['files'][$i], 'style="width: '.round(100/($higher-$lower), 3).'%" class="thumbnail"');
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              }
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            } else { // gallery view
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              if (isset($_REQUEST['select'])) {
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                echo '<a href="?path='.urlencode($subpath).'">Normal-Modus</a>';
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                echo '<form method="POST">';
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                echo '<input type="hidden" name="path" value="'.htmlentities($subpath).'">';
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                echo '<label for="password">Passwort:</label>';
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                echo '<input type="text" size="5" name="password" value="'.substr(str_shuffle(strtolower(sha1(rand().time()."SeAG6"))),0,4).'">';
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                echo '<label for="valid-until">Gültig bis:</label>';
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                echo '<input type="date" size="10" name="valid-until" max="'.date('Y-m-d', time()+((int)$max_validity_days)*86400).'" value="'.date('Y-m-d', time()+14*86400).'"/>';
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                echo '<input type="submit" name="share" value="Teilen"/>';
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              } else {
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                echo '<a href="?path='.urlencode($subpath).'&select">Auswahl-Modus</a>';
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              }
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              echo '<div class="dirs">';
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              if (preg_match('/\//', $subpath)) {
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                echo '<a href="?path='.urlencode(preg_replace('/\/[^\/]+$/', '', $subpath)).'"><img src="?folder=↑" alt="↑"/></a>';
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              } elseif ($subpath!="") {
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                echo '<a href="?"><img src="?folder=↑" alt="↑"/></a>';
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              }
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              $objects = extractDir($imagepath);
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              foreach ($objects['dirs'] as $f)
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              makelink('?path='.urlencode($subpath.($subpath!=""?'/':'').$f), '?path='.urlencode($subpath).'&folder='.urlencode($f), $f, 'class="folder"');
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            echo '</div><div class="images">';
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            foreach ($objects['files'] as $f)
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              linkorselect('?path='.urlencode($subpath).'&file='.urlencode($f).'&view', '?path='.urlencode($subpath).'&file='.urlencode($f).'&thumb', $f);
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