+<?php
+
+// load plugins
+$plugins = array();
+if (is_dir("plugins")) {
+ $plugins = scandir("plugins");
+ array_shift($plugins); array_shift($plugins); // remove . and ..
+ foreach ($plugins as $p) if (is_file("plugins/$p/functions.php"))
+ require "plugins/$p/functions.php";
+}
+
+function plugins_include($phpFile)
+{
+ foreach ($GLOBALS['plugins'] as $p) if (is_file("plugins/$p/$phpFile"))
+ require "plugins/$p/$phpFile";
+}
+
+function getPathInfo()
+{
+ $simplePath = $_SERVER["PATH_INFO"];
+ if ($simplePath == '/') $simplePath = '';
+ // extra security check to avoid /photos/index/../.. like urls, maybe useless but..
+ if (strpos($simplePath, '..') !== false) die(".. found in url");
+ return $simplePath;
+}
+
+
+if (! function_exists('getImageLink')) {
+function getImageLink($imageSimplePath)
+{
+ return $GLOBALS['rootUrl'].IMAGES_DIR.$imageSimplePath;
+}
+}
+
+function getPreview($imgFile, $maxSize = THUMB_SIZE)
+{
+ # example: data/myalbum/100.mypic.jpg
+ $newImgFile = DATA_DIR."/".dirname($imgFile)."/".$maxSize.".".basename($imgFile);
+
+ # if the preview is a symlink, image is already good sized
+ if (is_link($newImgFile)) return $imgFile;
+
+ if (! is_file($newImgFile))
+ {
+ # this tels the template to flush output after displaying previews
+ $GLOBALS["generating"] = true;
+
+ # reset script time limit to 20s (wont work in safe mode)
+ set_time_limit(20);
+
+ $ext = strtolower(substr($imgFile, -4));
+ if ($ext == ".jpg")
+ $img = imagecreatefromjpeg($imgFile);
+ else
+ $img = imagecreatefrompng($imgFile);
+
+ $w = imagesx($img);
+ $h = imagesy($img);
+ # if the image is already small, make a symlink, and return it
+ if ($w <= $maxSize and $h <= $maxSize) {
+ imagedestroy($img);
+ symlink($imgFile, $newImgFile);
+ return $imgFile;
+ }
+
+ # uncomment this if you need group writable files
+ #umask(0002);
+ # create the thumbs directory recursively
+ if (! is_dir(dirname($newImgFile))) mkdir(dirname($newImgFile), 0777, true);
+
+ if ($w > $h) {
+ $newW = $maxSize;
+ $newH = $h/($w/$maxSize);
+ } else {
+ $newW = $w/($h/$maxSize);
+ $newH = $maxSize;
+ }
+
+ $newImg = imagecreatetruecolor($newW, $newH);
+
+ imagecopyresampled($newImg, $img, 0, 0, 0, 0, $newW, $newH, $w, $h);
+
+ if ($ext == ".jpg")
+ imagejpeg($newImg, $newImgFile);
+ else
+ imagepng($newImg, $newImgFile);
+
+ imagedestroy($img);
+ imagedestroy($newImg);
+ }
+
+ return $newImgFile;
+}
+
+function getAlbumPreview($dir)
+{
+ $previewFile = DATA_DIR."/$dir/albumpreview";
+
+ if (is_file("$previewFile.jpg")) {
+ return "$previewFile.jpg";
+ } else if (is_file("$previewFile.empty")) {
+ return "";
+ } else if (is_file("$previewFile.png")) {
+ return "$previewFile.png";
+ } else {
+ # uncomment this if you need group writable files
+ #umask(0002);
+ # create the thumbs directory recursively
+ if (! is_dir(dirname($previewFile))) mkdir(dirname($previewFile), 0777, true);
+
+ // no preview: look for a preview in current dir, write it, return it
+ foreach (scandir($dir) as $file) if ($file != '.' and $file != '..') {
+ $ext = strtolower(substr($file, -4));
+ if ($ext == ".jpg" or $ext == ".png") {
+ $thumb = getPreview("$dir/$file");
+ copy($thumb, $previewFile.$ext);
+ return $previewFile.$ext;
+ } else if (is_dir("$dir/$file")) {
+ $subPreview = getAlbumPreview("$dir/$file");
+ if ($subPreview) {
+ $myPreview = dirname($previewFile)."/".basename($subPreview);
+ copy($subPreview, $myPreview);
+ return $myPreview;
+ }
+ }
+ }
+
+ // nothing found. create empty file
+ touch("$previewFile.empty");
+ return "";
+ }
+}
+
+?>