php8: fix warnings during install procedure

(cherry picked from commit 48bae9d4219735bc44f4ee72228d19d3e6b9efc9)

1 files changed, 15 insertions, 11 deletions

diff --git a/boot.php b/boot.php
index 4c3e4c00b..ccf1c9d72 100644
--- a/boot.php
+++ b/boot.php
@@ -1183,14 +1183,18 @@ class App {
 		if($interval < 10000)
 			$interval = 80000;
 
-		if(! x(self::$page,'title'))
+		if(! isset(self::$page['title']) && isset(self::$config['system']['sitename']))
 			self::$page['title'] = self::$config['system']['sitename'];
 
-		$pagemeta = [ 'og:title' => self::$page['title'] ];
+		if(isset(self::$page['title']))
+			$pagemeta = [ 'og:title' => self::$page['title'] ];
 
 		call_hooks('page_meta',$pagemeta);
-		foreach ($pagemeta as $metaproperty => $metavalue) {
-			self::$meta->set($metaproperty,$metavalue);
+
+		if($pagemeta) {
+			foreach ($pagemeta as $metaproperty => $metavalue) {
+				self::$meta->set($metaproperty,$metavalue);
+			}
 		}
 
 		self::$meta->set('generator', Zotlabs\Lib\System::get_platform_name());
@@ -1226,10 +1230,10 @@ class App {
 				'$linkrel'         => head_get_links(),
 				'$js_strings'      => js_strings(),
 				'$zid'             => get_my_address(),
-				'$channel_id'      => self::$profile['uid'],
-				'$auto_save_draft' => ((feature_enabled(self::$profile['uid'], 'auto_save_draft')) ? "true" : "false")
+				'$channel_id'      => self::$profile['uid'] ?? 0,
+				'$auto_save_draft' => ((isset(self::$profile['uid']) && feature_enabled(self::$profile['uid'], 'auto_save_draft')) ? "true" : "false")
 			]
-		) . self::$page['htmlhead'];
+		) . ((isset(self::$page['htmlhead'])) ? self::$page['htmlhead'] : '');
 
 		// always put main.js at the end
 		self::$page['htmlhead'] .= head_get_main_js();
@@ -2351,7 +2355,7 @@ function construct_page() {
 
 	App::build_pagehead();
 
-	if(App::$page['pdl_content']) {
+	if(isset(App::$page['pdl_content'])) {
 		App::$page['content'] = App::$comanche->region(App::$page['content']);
 	}
 
@@ -2418,7 +2422,7 @@ function construct_page() {
 	if(App::get_scheme() === 'https' && App::$config['system']['transport_security_header'])
 		header("Strict-Transport-Security: max-age=31536000");
 
-	if(App::$config['system']['content_security_policy']) {
+	if(isset(App::$config['system']['content_security_policy'])) {
 		$cspsettings = Array (
 			'script-src' => Array ("'self'","'unsafe-inline'","'unsafe-eval'"),
 			'style-src' => Array ("'self'","'unsafe-inline'")
@@ -2448,13 +2452,13 @@ function construct_page() {
 		header($cspheader);
 	}
 
-	if(App::$config['system']['x_security_headers']) {
+	if(isset(App::$config['system']['x_security_headers'])) {
 		header("X-Frame-Options: SAMEORIGIN");
 		header("X-Xss-Protection: 1; mode=block;");
 		header("X-Content-Type-Options: nosniff");
 	}
 
-	if(App::$config['system']['public_key_pins']) {
+	if(isset(App::$config['system']['public_key_pins'])) {
 		header("Public-Key-Pins: " . App::$config['system']['public_key_pins']);
 	}