public static function getFile($tree, $request)
{
$request = explode('/', $request);
foreach ($request as $node) {
// If the element we're in currently is not a
// directory, we failed to find the requested file
if (!$tree instanceof Directory) {
return false;
}
// Some relative paths may start with ./
if ($node == '.') {
continue;
}
if ($node == '..') {
$tree = $tree->getParent();
continue;
}
$node = urldecode($node);
// if the node exists in the current request tree,
// change the $tree variable to reference the new
// node and proceed to the next url part
if (isset($tree->getEntries()[$node])) {
$tree = $tree->getEntries()[$node];
continue;
}
// if the node doesn't exist, we can try
// two variants of the requested file:
// with and w/o the .html extension
foreach (static::getFilenames($tree->getConfig(), $node) as $filename) {
if (isset($tree->getEntries()[$filename])) {
$tree = $tree->getEntries()[$filename];
continue 2;
}
}
// At this stage, we're in a directory, but no
// sub-item matches, so the current node must
// be an index page or we failed
if ($node !== 'index' && $node !== 'index.html') {
return false;
}
return $tree->getIndexPage();
}
// If the entry we found is not a directory, we're done
if (!$tree instanceof Directory) {
return $tree;
}
if ($index = $tree->getIndexPage()) {
return $index;
}
return false;
} /**
* @param string $url
* @return Entry
* @throws LinkNotFoundException
*/
protected function resolveInternalFile($url)
{
$triedAbsolute = false;
// Legacy absolute paths could start with
// "!" In this case we will try to find
// the file starting at the root
if ($url[0] == '!' || $url[0] == '/') {
$url = ltrim($url, '!/');
if ($file = DauxHelper::getFile($this->daux['tree'], $url)) {
return $file;
}
$triedAbsolute = true;
}
// Seems it's not an absolute path or not found,
// so we'll continue with the current folder
if ($file = DauxHelper::getFile($this->daux->getCurrentPage()->getParent(), $url)) {
return $file;
}
// If we didn't already try it, we'll
// do a pass starting at the root
if (!$triedAbsolute && ($file = DauxHelper::getFile($this->daux['tree'], $url))) {
return $file;
}
throw new LinkNotFoundException("Could not locate file '{$url}'");
}
