fix more php warnings

1 files changed, 6 insertions, 6 deletions

diff --git a/Zotlabs/Module/Chanview.php b/Zotlabs/Module/Chanview.php
index fc1146023..f43432376 100644
--- a/Zotlabs/Module/Chanview.php
+++ b/Zotlabs/Module/Chanview.php
@@ -16,17 +16,17 @@ class Chanview extends \Zotlabs\Web\Controller {
 
 		$r = null;
 
-		if($_REQUEST['hash']) {
+		if(isset($_REQUEST['hash']) && $_REQUEST['hash']) {
 			$r = q("select * from xchan where xchan_hash = '%s' and xchan_deleted = 0",
 				dbesc($_REQUEST['hash'])
 			);
 		}
-		if($_REQUEST['address']) {
+		if(isset($_REQUEST['address']) && $_REQUEST['address']) {
 			$r = q("select * from xchan where xchan_addr = '%s' and xchan_deleted = 0",
 				dbesc(punify($_REQUEST['address']))
 			);
 		}
-		elseif(local_channel() && intval($_REQUEST['cid'])) {
+		elseif(local_channel() && isset($_REQUEST['cid']) && $_REQUEST['cid']) {
 			$r = q("SELECT abook.*, xchan.*
 				FROM abook left join xchan on abook_xchan = xchan_hash
 				WHERE abook_channel = %d and abook_id = %d and xchan_deleted = 0",
@@ -34,7 +34,7 @@ class Chanview extends \Zotlabs\Web\Controller {
 				intval($_REQUEST['cid'])
 			);
 		}
-		elseif($_REQUEST['url']) {
+		elseif(isset($_REQUEST['url']) && $_REQUEST['url']) {
 
 			// if somebody re-installed they will have more than one xchan, use the most recent name date as this is
 			// the most useful consistently ascending table item we have.
@@ -56,7 +56,7 @@ class Chanview extends \Zotlabs\Web\Controller {
 		if(! App::$poi) {
 			logger('mod_chanview: fallback');
 
-			if($_REQUEST['address']) {
+			if(isset($_REQUEST['address']) && $_REQUEST['address']) {
 				$href = Webfinger::zot_url(punify($_REQUEST['address']));
 				if($href) {
 					$_REQUEST['url'] = $href;
@@ -65,7 +65,7 @@ class Chanview extends \Zotlabs\Web\Controller {
 
 			$r = null;
 
-			if($_REQUEST['url']) {
+			if(isset($_REQUEST['url']) && $_REQUEST['url']) {
 
 				$zf = Zotfinger::exec($_REQUEST['url'], null);