Random PHP 8 fixes

6 files changed, 21 insertions, 14 deletions

diff --git a/Zotlabs/Module/Magic.php b/Zotlabs/Module/Magic.php
index b4372e26d..bfd38d2fa 100644
--- a/Zotlabs/Module/Magic.php
+++ b/Zotlabs/Module/Magic.php
@@ -40,7 +40,7 @@ class Magic extends Controller {
 			goaway($dest);
 		}
 
-		$basepath = $parsed['scheme'] . '://' . $parsed['host'] . (($parsed['port']) ? ':' . $parsed['port'] : ''); 
+		$basepath = $parsed['scheme'] . '://' . $parsed['host'] . (isset($parsed['port']) ? ':' . $parsed['port'] : '');
 		$owapath = SConfig::get($basepath,'system','openwebauth', $basepath . '/owa');
 
 		// This is ready-made for a plugin that provides a blacklist or "ask me" before blindly authenticating. 
@@ -110,6 +110,7 @@ class Magic extends Controller {
 				$headers['(request-target)'] = 'post ' . '/owa';
 
 				$headers = HTTPSig::create_sig($headers,$channel['channel_prvkey'], channel_url($channel),true,'sha512');
+				$redirects = 0;
 				$x = z_post_url($owapath,$data,$redirects,[ 'headers' => $headers ]);
 				logger('owa fetch returned: ' . print_r($x,true),LOGGER_DATA);
 				if ($x['success']) {
diff --git a/Zotlabs/Module/Photos.php b/Zotlabs/Module/Photos.php
index 099289c03..e62accb06 100644
--- a/Zotlabs/Module/Photos.php
+++ b/Zotlabs/Module/Photos.php
@@ -876,7 +876,7 @@ class Photos extends \Zotlabs\Web\Controller {
 			$prevlink = '';
 			$nextlink = '';
 
-			if($_GET['order'] === 'posted')
+			if(isset($_GET['order']) && $_GET['order'] === 'posted')
 				$order = 'ASC';
 			else
 				$order = 'DESC';
@@ -901,8 +901,8 @@ class Photos extends \Zotlabs\Web\Controller {
 					}
 				}
 
-				$prevlink = z_root() . '/photos/' . \App::$data['channel']['channel_address'] . '/image/' . $prvnxt[$prv]['hash'] . (($_GET['order'] === 'posted') ? '?f=&order=posted' : '');
-				$nextlink = z_root() . '/photos/' . \App::$data['channel']['channel_address'] . '/image/' . $prvnxt[$nxt]['hash'] . (($_GET['order'] === 'posted') ? '?f=&order=posted' : '');
+				$prevlink = z_root() . '/photos/' . \App::$data['channel']['channel_address'] . '/image/' . $prvnxt[$prv]['hash'] . (($order == 'ASC') ? '?f=&order=posted' : '');
+				$nextlink = z_root() . '/photos/' . \App::$data['channel']['channel_address'] . '/image/' . $prvnxt[$nxt]['hash'] . (($order == 'ASC') ? '?f=&order=posted' : '');
 	 		}
 
 
@@ -987,7 +987,7 @@ class Photos extends \Zotlabs\Web\Controller {
 				}
 
 				$tags = array();
-				if($link_item['term']) {
+				if(x($link_item, 'term')) {
 					$cnt = 0;
 					foreach($link_item['term'] as $t) {
 						$tags[$cnt] = array(0 => format_term_for_display($t));
diff --git a/Zotlabs/Module/Sse.php b/Zotlabs/Module/Sse.php
index 8bea65207..6f3df299f 100644
--- a/Zotlabs/Module/Sse.php
+++ b/Zotlabs/Module/Sse.php
@@ -108,7 +108,8 @@ class Sse extends Controller {
 				echo 'data: {}';
 				echo "\n\n";
 
-				ob_end_flush();
+				if(ob_get_length() > 0)
+					ob_end_flush();
 				flush();
 
 				if(connection_status() != CONNECTION_NORMAL || connection_aborted()) {
diff --git a/include/channel.php b/include/channel.php
index 31c7c407f..e636a22d6 100644
--- a/include/channel.php
+++ b/include/channel.php
@@ -1516,8 +1516,11 @@ function profile_load($nickname, $profile = '') {
 
 	if($p[0]['keywords']) {
 		$keywords = str_replace(array('#',',',' ',',,'),array('',' ',',',','),$p[0]['keywords']);
-		if(strlen($keywords) && $can_view_profile)
+		if(strlen($keywords) && $can_view_profile) {
+			if(! isset(App::$page['htmlhead']))
+				App::$page['htmlhead'] = '';
 			App::$page['htmlhead'] .= '<meta name="keywords" content="' . htmlentities($keywords,ENT_COMPAT,'UTF-8') . '" />' . "\r\n" ;
+		}
 	}
 
 	App::$profile = $p[0];
diff --git a/include/feedutils.php b/include/feedutils.php
index e827bde98..f489030b6 100644
--- a/include/feedutils.php
+++ b/include/feedutils.php
@@ -296,7 +296,7 @@ function get_atom_author($feed, $item) {
 
 	$rawauthor = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author');
 
-	if($rawauthor && $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
+	if($rawauthor && isset($rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'])) {
 		$base = $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 		foreach($base as $link) {
 			if(!x($author, 'author_photo') || ! $author['author_photo']) {
@@ -336,7 +336,7 @@ function get_atom_author($feed, $item) {
 
 	if(! x($author,'author_link') || ! x($author,'author_photo')) {
 		$rawauthor = $feed->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author');
-		if($rawauthor && $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
+		if($rawauthor && isset($rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'])) {
 			$base = $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 			foreach($base as $link) {
 				if($link['attribs']['']['rel'] === 'alternate' && (! $author['author_link'])) {
@@ -372,16 +372,16 @@ function get_atom_author($feed, $item) {
 	if(! $rawowner)
 		$rawowner = $item->get_item_tags(NAMESPACE_ZOT, 'owner');
 
-	if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'])
+	if(isset($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']))
 		$author['owner_name'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']);
-	elseif($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data'])
+	elseif(isset($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data']))
 		$author['owner_name'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data']);
-	if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'])
+	if(isset($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']))
 		$author['owner_link'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']);
-	elseif($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data'])
+	elseif(isset($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data']))
 		$author['owner_link'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data']);
 
-	if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
+	if(isset($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'])) {
 		$base = $rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 
 		foreach($base as $link) {
diff --git a/include/opengraph.php b/include/opengraph.php
index 4c88570d3..465acbd39 100644
--- a/include/opengraph.php
+++ b/include/opengraph.php
@@ -62,6 +62,8 @@
                 $ogimagetype = $channel['xchan_photo_mimetype'];
         }
 
+	if (! isset(App::$page['htmlhead']))
+		App::$page['htmlhead'] = '';
         App::$page['htmlhead'] .= '<meta property="og:title" content="' . htmlspecialchars((isset($ogtitle) ? $ogtitle : $channel['channel_name'])) . '">' . "\r\n";
         App::$page['htmlhead'] .= '<meta property="og:image" content="' . $ogimage . '">' . "\r\n";
         App::$page['htmlhead'] .= '<meta property="og:image:type" content="' . $ogimagetype . '">' . "\r\n";