function pageNameToFileNameImpl($basePath, $pageName)
{
global $WikiGallery_PathDelimiter;
// empty pageName?
if ($pageName == "") {
return "";
}
//echo "Will try to find filename for $pageName<br/>";
$lastComponent = WikiGalleryLastComponent($pageName, $WikiGallery_PathDelimiter);
$head = WikiGalleryLeadingComponents($pageName, $WikiGallery_PathDelimiter);
if (!$head) {
$path = "";
$pathslash = "";
} else {
$path = $this->pageNameToFileNameImpl($basePath, $head);
if ($path == -1) {
return -1;
}
$pathslash = "{$path}/";
}
if (!is_dir($basePath . "/" . $path)) {
return -1;
}
$pwd = opendir($basePath . "/" . $path);
$found = "";
while (($file = readdir($pwd)) != false) {
$filePageName = fileNameToPageName($file);
if (ucfirst($lastComponent) == $filePageName) {
//echo "Found $file==$lastComponent<br/>";
$found = $file;
break;
} else {
//echo "$file => $filePageName!=$lastComponent<br/>";
}
}
closedir($pwd);
if ($found == "") {
return -1;
} else {
return $pathslash . $found;
}
}
function thumb($path, $width, $height, $resizeMode = "")
{
// exists?
$pagename = fileNameToPageName($path);
$original = $this->picturesBasePath . "/" . $path;
if (!is_file($original)) {
Abort('image doesn\'t exist');
}
// resize?
if ($width == 0 && $height == 0) {
$filename = $original;
} else {
// resize
$filename = $this->cacheBasePath . "/" . $this->cacheFileName($path, $width, $height, $resizeMode);
$exists = WikiGalleryIsFileAndNonZero($filename);
if (!$exists || filemtime($filename) < filemtime($original)) {
if (is_file($filename)) {
// if it already there, it must be updated. So remove it to avoid trouble overwriting it
unlink($filename);
} else {
// make directory
$dir = dirname($filename);
mkdirp($dir);
}
// call ImageMagick or GD to scale
$this->scale($original, $filename, $width, $height, $resizeMode);
} else {
// touch it so that it is not purged during cleanup
touch($filename);
}
}
// Checking if the client is validating his cache and if it is current.
$etag = md5($original . filemtime($original) . filesize($original));
header('ETag: ' . $etag);
if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) && strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) == filemtime($original) || isset($_SERVER['HTTP_IF_NONE_MATCH']) && $_SERVER['HTTP_IF_NONE_MATCH'] == $etag) {
// Client's cache IS current, so we just respond '304 Not Modified'.
header('Last-Modified: ' . gmdate('D, d M Y H:i:s', filemtime($original)) . ' GMT', true, 304);
} else {
// Image not cached or cache outdated, we respond '200 OK' and output the image.
header('Last-Modified: ' . gmdate('D, d M Y H:i:s', filemtime($original)) . ' GMT', true, 200);
header('Content-Length: ' . filesize($filename));
header("Content-type: " . WikiGalleryMimeType($original));
header("Pragma: ");
header('Expires: ' . gmdate('D, j M Y H:i:s T', time() + 600));
header("Cache-Control: max-age=600, must-revalidate");
print file_get_contents($filename);
}
}
function neighbourPicturePage($name, $delta, $count = -1)
{
$pics = $this->neighbourPicture($name, $delta, $count);
if (!$pics) {
return false;
}
if ($count != -1) {
$ret = array();
foreach ($pics as $pic) {
$ret[] = fileNameToPageName($pic);
}
return $ret;
} else {
if ($pics == "") {
return "";
} else {
return fileNameToPageName($pics);
}
}
}
