bizou/functions.php
2012-08-19 15:06:33 +02:00

134 lines
3.4 KiB
PHP

<?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 $imgFile;
}
# config to allow group writable files
umask(DATA_UMASK);
# create the thumbs directory recursively
if (! is_dir(dirname($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 "$previewFile.png";
} else {
# config to allow group writable files
umask(DATA_UMASK);
# create the thumbs directory recursively
if (! is_dir(dirname($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[0] != '.') {
$ext = strtolower(substr($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 "";
}
}
?>