public static function resolveFileFromParent($collectionHandle, $path)
{
if (!($parentConfig = Site::getParentHostConfig())) {
return false;
}
// get collection for parent site
$collection = SiteCollection::getOrCreateRootCollection($collectionHandle, $parentConfig['ID']);
$fileNode = $collection->resolvePath($path);
// try to download from parent site
if (!$fileNode) {
$remoteURL = 'http://' . $parentConfig['Hostname'] . '/emergence/';
$remoteURL .= $collectionHandle . '/';
$remoteURL .= join('/', $path);
$remoteURL .= '?accessKey=' . $parentConfig['AccessKey'];
$cache = apc_fetch($remoteURL);
if ($cache == '404') {
return false;
}
//if(isset(self::$cache[$cacheKey])) {
// $fp = self::$cache[$cacheKey];
//}
$fp = fopen('php://memory', 'w+');
//print("Retrieving: <a href='$remoteURL' target='_blank'>$remoteURL</a><br>\n");
$ch = curl_init($remoteURL);
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_HEADER, true);
if (!curl_exec($ch)) {
throw new Exception('Failed to query parent site for file');
}
if (curl_errno($ch)) {
die("curl error:" . curl_error($ch));
}
// write file to parent site collection
fseek($fp, 0);
// read status
$statusLine = trim(fgetss($fp));
list($protocol, $status, $message) = explode(' ', $statusLine);
if ($status != '200') {
apc_store($remoteURL, '404');
return false;
}
// read headers
while ($header = trim(fgetss($fp))) {
if (!$header) {
break;
}
list($key, $value) = preg_split('/:\\s*/', $header, 2);
//print "$key=$value<br>";
}
$collection->createFile($path, $fp);
$fileNode = $collection->resolvePath($path);
}
return $fileNode;
}
public static function getRootCollection($handle)
{
if (!empty(static::$_rootCollections[$handle])) {
return static::$_rootCollections[$handle];
}
return static::$_rootCollections[$handle] = SiteCollection::getOrCreateRootCollection($handle);
}
public static function resolveFileFromParent($collection, $path, $forceRemote = false, $params = array())
{
if (!Site::getConfig('parent_hostname')) {
return false;
}
// get collection for parent site
if (is_string($collection)) {
$collection = SiteCollection::getOrCreateRootCollection($collection, true);
}
if (is_string($path)) {
$path = Site::splitPath($path);
}
// try to get existing cached file
$fileNode = $collection->resolvePath($path);
// try to download from parent site
if ($forceRemote || !$fileNode) {
if (!Site::$autoPull) {
return false;
}
$remoteURL = static::buildUrl(array_merge($collection->getFullPath(null, false), $path), $params);
$cachedStatus = Cache::rawFetch($remoteURL);
if ($cachedStatus) {
return false;
}
$fp = fopen('php://memory', 'w+');
$ch = curl_init($remoteURL);
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_HEADER, true);
if (curl_exec($ch) === false || curl_errno($ch)) {
throw new Exception('Failed to query parent site for file: ' . curl_error($ch));
}
// read response
fseek($fp, 0);
// read and check status
list($protocol, $status, $message) = explode(' ', trim(fgetss($fp)));
if ($status != '200') {
fclose($fp);
Cache::rawStore($remoteURL, (int) $status);
return false;
}
// read headers until a blank line is found
while ($header = trim(fgetss($fp))) {
if (!$header) {
break;
}
list($key, $value) = preg_split('/:\\s*/', $header, 2);
$key = strtolower($key);
// if etag found, use it to skip write if existing file matches
if ($key == 'etag' && $fileNode && $fileNode->SHA1 == $value) {
fclose($fp);
return $fileNode;
}
}
// write remaining buffer to file
$fileRecord = $collection->createFile($path, $fp);
$fileNode = new SiteFile($fileRecord['Handle'], $fileRecord);
}
return $fileNode;
}
