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Fixes #299: prevent 404 on '?edit_link' while logged out 

- add a use case for edit_link in logged out part.
 - *really* prevent loops on login screen.
This commit is contained in:
ArthurHoaro 2015-07-29 15:32:41 +02:00
parent b282fffa23
commit 5fbabbb9be
1 changed files with 36 additions and 7 deletions
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43
index.php Normal file → Executable file
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@ -445,12 +445,30 @@ if (isset($_POST['login']))
session_set_cookie_params(0,$cookiedir,$_SERVER['SERVER_NAME']); // 0 means "When browser closes"
session_regenerate_id(true);
}
// Optional redirect after login:
if (isset($_GET['post'])) { header('Location: ?post='.urlencode($_GET['post']).(!empty($_GET['title'])?'&title='.urlencode($_GET['title']):'').(!empty($_GET['description'])?'&description='.urlencode($_GET['description']):'').(!empty($_GET['source'])?'&source='.urlencode($_GET['source']):'')); exit; }
if (isset($_POST['returnurl']))
{
if (endsWith($_POST['returnurl'],'?do=login')) { header('Location: ?'); exit; } // Prevent loops over login screen.
header('Location: '.$_POST['returnurl']); exit;
if (isset($_GET['post'])) {
$uri = '?post='. urlencode($_GET['post']);
foreach (array('description', 'source', 'title') as $param) {
if (!empty($_GET[$param])) {
$uri .= '&'.$param.'='.urlencode($_GET[$param]);
}
}
header('Location: '. $uri);
exit;
}
if (isset($_GET['edit_link'])) {
header('Location: ?edit_link='. escape($_GET['edit_link']));
exit;
}
if (isset($_POST['returnurl'])) {
// Prevent loops over login screen.
if (strpos($_POST['returnurl'], 'do=login') === false) {
header('Location: '. escape($_POST['returnurl']));
exit;
}
}
header('Location: ?'); exit;
}
@ -458,7 +476,14 @@ if (isset($_POST['login']))
{
ban_loginFailed();
$redir = '';
if (isset($_GET['post'])) { $redir = '&post='.urlencode($_GET['post']).(!empty($_GET['title'])?'&title='.urlencode($_GET['title']):'').(!empty($_GET['description'])?'&description='.urlencode($_GET['description']):'').(!empty($_GET['source'])?'&source='.urlencode($_GET['source']):''); }
if (isset($_GET['post'])) {
$redir = '?post=' . urlencode($_GET['post']);
foreach (array('description', 'source', 'title') as $param) {
if (!empty($_GET[$param])) {
$redir .= '&' . $param . '=' . urlencode($_GET[$param]);
}
}
}
echo '<script>alert("Wrong login/password.");document.location=\'?do=login'.$redir.'\';</script>'; // Redirect to login screen.
exit;
}
@ -1219,6 +1244,11 @@ function renderPage()
exit;
}
if (isset($_GET['edit_link'])) {
header('Location: ?do=login&edit_link='. escape($_GET['edit_link']));
exit;
}
$PAGE = new pageBuilder;
buildLinkList($PAGE,$LINKSDB); // Compute list of links to display
$PAGE->renderPage('linklist');
@ -1488,7 +1518,6 @@ function renderPage()
{
$url=$_GET['post'];
// We remove the annoying parameters added by FeedBurner, GoogleFeedProxy, Facebook...
$annoyingpatterns = array('/[\?&]utm_source=[^&]*/',
'/[\?&]utm_campaign=[^&]*/',