PHP 8.1 band-aid

7 files changed, 37 insertions, 29 deletions

diff --git a/Zotlabs/Lib/ActivityStreams.php b/Zotlabs/Lib/ActivityStreams.php
index 323b0e273..52f888b95 100644
--- a/Zotlabs/Lib/ActivityStreams.php
+++ b/Zotlabs/Lib/ActivityStreams.php
@@ -36,6 +36,9 @@ class ActivityStreams {
 	 */
 	function __construct($string) {
 
+		if(!$string)
+			return;
+
 		$this->raw = $string;
 
 		if (is_array($string)) {
diff --git a/Zotlabs/Lib/Apps.php b/Zotlabs/Lib/Apps.php
index a6b5c192c..98ebc546a 100644
--- a/Zotlabs/Lib/Apps.php
+++ b/Zotlabs/Lib/Apps.php
@@ -426,7 +426,7 @@ class Apps {
 
 		self::translate_system_apps($papp);
 
-		if(trim($papp['plugin']) && (! plugin_is_installed(trim($papp['plugin']))))
+		if(isset($papp['plugin']) && trim($papp['plugin']) && (! plugin_is_installed(trim($papp['plugin']))))
 			return '';
 
 		$papp['papp'] = self::papp_encode($papp);
diff --git a/Zotlabs/Lib/Libzot.php b/Zotlabs/Lib/Libzot.php
index f340514f0..dbcc2af52 100644
--- a/Zotlabs/Lib/Libzot.php
+++ b/Zotlabs/Lib/Libzot.php
@@ -2482,14 +2482,14 @@ class Libzot {
 				$access_policy = ACCESS_PRIVATE;
 		}
 
-		$directory_url = htmlspecialchars($arr['directory_url'], ENT_COMPAT, 'UTF-8', false);
-		$url           = htmlspecialchars(strtolower($arr['url']), ENT_COMPAT, 'UTF-8', false);
-		$sellpage      = htmlspecialchars($arr['sellpage'], ENT_COMPAT, 'UTF-8', false);
-		$site_location = htmlspecialchars($arr['location'], ENT_COMPAT, 'UTF-8', false);
-		$site_realm    = htmlspecialchars($arr['realm'], ENT_COMPAT, 'UTF-8', false);
-		$site_project  = htmlspecialchars($arr['project'], ENT_COMPAT, 'UTF-8', false);
-		$site_crypto   = ((array_key_exists('encryption', $arr) && is_array($arr['encryption'])) ? htmlspecialchars(implode(',', $arr['encryption']), ENT_COMPAT, 'UTF-8', false) : '');
-		$site_version  = ((array_key_exists('version', $arr)) ? htmlspecialchars($arr['version'], ENT_COMPAT, 'UTF-8', false) : '');
+		$directory_url = htmlspecialchars((string)$arr['directory_url'], ENT_COMPAT, 'UTF-8', false);
+		$url           = htmlspecialchars((string)strtolower($arr['url']), ENT_COMPAT, 'UTF-8', false);
+		$sellpage      = htmlspecialchars((string)$arr['sellpage'], ENT_COMPAT, 'UTF-8', false);
+		$site_location = htmlspecialchars((string)$arr['location'], ENT_COMPAT, 'UTF-8', false);
+		$site_realm    = htmlspecialchars((string)$arr['realm'], ENT_COMPAT, 'UTF-8', false);
+		$site_project  = htmlspecialchars((string)$arr['project'], ENT_COMPAT, 'UTF-8', false);
+		$site_crypto   = ((array_key_exists('encryption', $arr) && is_array($arr['encryption'])) ? htmlspecialchars((string)implode(',', $arr['encryption']), ENT_COMPAT, 'UTF-8', false) : '');
+		$site_version  = ((array_key_exists('version', $arr)) ? htmlspecialchars((string)$arr['version'], ENT_COMPAT, 'UTF-8', false) : '');
 
 		// You can have one and only one primary directory per realm.
 		// Downgrade any others claiming to be primary. As they have
diff --git a/Zotlabs/Module/Item.php b/Zotlabs/Module/Item.php
index 41979006e..41a4e120d 100644
--- a/Zotlabs/Module/Item.php
+++ b/Zotlabs/Module/Item.php
@@ -358,7 +358,7 @@ class Item extends Controller {
 		$consensus = intval($_REQUEST['consensus']);
 		$nocomment = intval($_REQUEST['nocomment']);
 
-		$is_poll = ((trim($_REQUEST['poll_answers'][0]) != '' && trim($_REQUEST['poll_answers'][1]) != '') ? true : false);
+		$is_poll = ((trim((string)$_REQUEST['poll_answers'][0]) != '' && trim((string)$_REQUEST['poll_answers'][1]) != '') ? true : false);
 
 		// 'origin' (if non-zero) indicates that this network is where the message originated,
 		// for the purpose of relaying comments to other conversation members.
@@ -719,13 +719,13 @@ class Item extends Controller {
 			}
 
 
-			$location = notags(trim($_REQUEST['location']));
-			$coord    = notags(trim($_REQUEST['coord']));
-			$verb     = notags(trim($_REQUEST['verb']));
-			$title    = escape_tags(trim($_REQUEST['title']));
-			$summary  = trim($_REQUEST['summary']);
-			$body     = trim($_REQUEST['body']);
-			$body     .= trim($_REQUEST['attachment']);
+			$location = notags(trim((string)$_REQUEST['location']));
+			$coord    = notags(trim((string)$_REQUEST['coord']));
+			$verb     = notags(trim((string)$_REQUEST['verb']));
+			$title    = escape_tags(trim((string)$_REQUEST['title']));
+			$summary  = trim((string)$_REQUEST['summary']);
+			$body     = trim((string)$_REQUEST['body']);
+			$body     .= trim((string)$_REQUEST['attachment']);
 			$postopts = '';
 
 			$allow_empty = ((array_key_exists('allow_empty', $_REQUEST)) ? intval($_REQUEST['allow_empty']) : 0);
@@ -764,7 +764,7 @@ class Item extends Controller {
 		}
 
 
-		$mimetype = notags(trim($_REQUEST['mimetype']));
+		$mimetype = notags(trim((string)$_REQUEST['mimetype']));
 		if (!$mimetype)
 			$mimetype = 'text/bbcode';
 
diff --git a/Zotlabs/Render/Comanche.php b/Zotlabs/Render/Comanche.php
index 5ce05243b..230c2455e 100644
--- a/Zotlabs/Render/Comanche.php
+++ b/Zotlabs/Render/Comanche.php
@@ -572,7 +572,7 @@ class Comanche {
 				require_once('widget/' . trim($name) . '.php');
 			elseif(file_exists('widget/' . trim($name) . '/' . trim($name) . '.php'))
 				require_once('widget/' . trim($name) . '/' . trim($name) . '.php');
-		
+
 			if(! function_exists($func)) {
 				$theme_widget = $func . '.php';
 				if(theme_include($theme_widget)) {
@@ -640,7 +640,8 @@ class Comanche {
 		$cnt = preg_match_all("/\[widget=(.*?)\](.*?)\[\/widget\]/ism", $s, $matches, PREG_SET_ORDER);
 		if($cnt) {
 			foreach($matches as $mtch) {
-				$s = str_replace($mtch[0],$this->widget(trim($mtch[1]),$mtch[2]),$s);
+
+				$s = str_replace((string)$mtch[0], (string)$this->widget(trim((string)$mtch[1]), (string)$mtch[2]), $s);
 			}
 		}
 
diff --git a/Zotlabs/Web/SessionHandler.php b/Zotlabs/Web/SessionHandler.php
index 4292fdc28..392cab1ae 100644
--- a/Zotlabs/Web/SessionHandler.php
+++ b/Zotlabs/Web/SessionHandler.php
@@ -6,7 +6,7 @@ namespace Zotlabs\Web;
 class SessionHandler implements \SessionHandlerInterface {
 
 
-	function open ($s, $n) {
+	function open ($s, $n) : bool {
 		return true;
 	}
 
@@ -15,7 +15,7 @@ class SessionHandler implements \SessionHandlerInterface {
 	// some which call read explicitly and some that do not. So we call it explicitly
 	// just after sid regeneration to force a record to exist.
 
-	function read ($id) {
+	function read ($id) : string|false {
 
 		if($id) {
 			$r = q("SELECT sess_data FROM session WHERE sid= '%s'", dbesc($id));
@@ -36,7 +36,7 @@ class SessionHandler implements \SessionHandlerInterface {
 	}
 
 
-	function write ($id, $data) {
+	function write ($id, $data) : bool {
 
 		// Pretend everything is hunky-dory, even though it isn't.
 		// There probably isn't anything we can do about it in any event.
@@ -49,9 +49,9 @@ class SessionHandler implements \SessionHandlerInterface {
 
 		// Unless we authenticate somehow, only keep a session for 5 minutes
 		// The viewer can extend this by performing any web action using the
-		// original cookie, but this allows us to cleanup the hundreds or 
+		// original cookie, but this allows us to cleanup the hundreds or
 		// thousands of empty sessions left around from web crawlers which are
-		// assigned cookies on each page that they never use. 
+		// assigned cookies on each page that they never use.
 
 		$expire = time() + 300;
 
@@ -74,19 +74,19 @@ class SessionHandler implements \SessionHandlerInterface {
 		return true;
 	}
 
-	
-	function close() {
+
+	function close() : bool {
 		return true;
 	}
 
 
-	function destroy ($id) {
+	function destroy ($id) : bool {
 		q("DELETE FROM session WHERE sid = '%s'", dbesc($id));
 		return true;
 	}
 
 
-	function gc($expire) {
+	function gc($expire) : int|false {
 		q("DELETE FROM session WHERE expire < %d", dbesc(time()));
 		return true;
 	}
diff --git a/include/text.php b/include/text.php
index aea8790fc..b76175a06 100644
--- a/include/text.php
+++ b/include/text.php
@@ -1492,6 +1492,10 @@ function day_translate($s) {
  * @return string
  */
 function normalise_link($url) {
+	if (!$url) {
+		return EMPTY_STR;
+	}
+
 	$ret = str_replace(array('https:', '//www.'), array('http:', '//'), $url);
 
 	return(rtrim($ret, '/'));