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Use new ::getByUrl for File and File_redirection 

and make use of the exceptions instead endless if statements
This commit is contained in:
Mikael Nordfeldth 2015-02-19 19:29:55 +01:00
parent 5b940f255f
commit 8ac8e2e734
1 changed files with 42 additions and 37 deletions
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79
classes/File.php
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@ -127,51 +127,56 @@ class File extends Managed_DataObject
throw new ServerException('No canonical URL from given URL to process');
}
$file = File::getKV('url', $given_url);
if (!$file instanceof File) {
$file = null;
try {
$file = File::getByUrl($given_url);
} catch (NoResultException $e) {
// First check if we have a lookup trace for this URL already
$file_redir = File_redirection::getKV('url', $given_url);
if ($file_redir instanceof File_redirection) {
try {
$file_redir = File_redirection::getByUrl($given_url);
$file = File::getKV('id', $file_redir->file_id);
if (!$file instanceof File) {
// File did not exist, let's clean up the File_redirection entry
$file_redir->delete();
}
} catch (NoResultException $e) {
// We just wanted to doublecheck whether a File_thumbnail we might've had
// actually referenced an existing File object.
}
}
// If we still don't have a File object, let's create one now!
if (!$file instanceof File) {
// @fixme for new URLs this also looks up non-redirect data
// such as target content type, size, etc, which we need
// for File::saveNew(); so we call it even if not following
// new redirects.
$redir_data = File_redirection::where($given_url);
if (is_array($redir_data)) {
$redir_url = $redir_data['url'];
} elseif (is_string($redir_data)) {
$redir_url = $redir_data;
$redir_data = array();
} else {
// TRANS: Server exception thrown when a URL cannot be processed.
throw new ServerException(sprintf(_("Cannot process URL '%s'"), $given_url));
}
// If we still don't have a File object, let's create one now!
if (!$file instanceof File) {
// @fixme for new URLs this also looks up non-redirect data
// such as target content type, size, etc, which we need
// for File::saveNew(); so we call it even if not following
// new redirects.
$redir_data = File_redirection::where($given_url);
if (is_array($redir_data)) {
$redir_url = $redir_data['url'];
} elseif (is_string($redir_data)) {
$redir_url = $redir_data;
$redir_data = array();
} else {
// TRANS: Server exception thrown when a URL cannot be processed.
throw new ServerException(sprintf(_("Cannot process URL '%s'"), $given_url));
}
// TODO: max field length
if ($redir_url === $given_url || strlen($redir_url) > 255 || !$followRedirects) {
// Save the File object based on our lookup trace
$file = File::saveNew($redir_data, $given_url);
} else {
// This seems kind of messed up... for now skipping this part
// if we're already under a redirect, so we don't go into
// horrible infinite loops if we've been given an unstable
// redirect (where the final destination of the first request
// doesn't match what we get when we ask for it again).
//
// Seen in the wild with clojure.org, which redirects through
// wikispaces for auth and appends session data in the URL params.
$file = self::processNew($redir_url, $notice_id, /*followRedirects*/false);
File_redirection::saveNew($redir_data, $file->id, $given_url);
}
if ($redir_url === $given_url || !$followRedirects) {
// Save the File object based on our lookup trace
$file = File::saveNew($redir_data, $given_url);
} else {
// This seems kind of messed up... for now skipping this part
// if we're already under a redirect, so we don't go into
// horrible infinite loops if we've been given an unstable
// redirect (where the final destination of the first request
// doesn't match what we get when we ask for it again).
//
// Seen in the wild with clojure.org, which redirects through
// wikispaces for auth and appends session data in the URL params.
$file = self::processNew($redir_url, $notice_id, /*followRedirects*/false);
File_redirection::saveNew($redir_data, $file->id, $given_url);
}
if (!$file instanceof File) {