From 35e426c1582b81104ec088ec0e0606442d91453c Mon Sep 17 00:00:00 2001
From: iaretechnician <iaretechnician@gmail.com>
Date: Sun, 23 Nov 2025 17:13:22 -0500
Subject: [PATCH] server log parser

---
 modules/config_games/server_config_parser.php | 137 +++++++++++++++---
 1 file changed, 113 insertions(+), 24 deletions(-)

diff --git a/modules/config_games/server_config_parser.php b/modules/config_games/server_config_parser.php
index c0e85345..c4bd4a18 100644
--- a/modules/config_games/server_config_parser.php
+++ b/modules/config_games/server_config_parser.php
@@ -25,41 +25,130 @@
 define("SERVER_CONFIG_LOCATION","modules/config_games/server_configs/");
 define("XML_SCHEMA","modules/config_games/schema_server_config.xml");
 
+if (!function_exists('ogp_render_config_error')) {
+	function ogp_render_config_error($title, $details = "")
+	{
+		$log_message = "[OGP] $title" . (empty($details) ? "" : " Details: $details");
+		error_log($log_message);
+
+		if (PHP_SAPI === 'cli') {
+			fwrite(STDERR, $log_message . PHP_EOL);
+			exit(1);
+		}
+
+		if (!headers_sent()) {
+			header('Content-Type: text/html; charset=utf-8', true, 500);
+		}
+
+		echo "<div style=\"font-family:Arial,Helvetica,sans-serif;max-width:720px;margin:4rem auto;padding:2rem;border:1px solid #c0392b;border-radius:6px;background:#fff7f7;color:#333;\">";
+		echo "<h1 style=\"margin-top:0;color:#c0392b;\">Open Game Panel</h1>";
+		echo "<h2 style=\"color:#c0392b;\">$title</h2>";
+		if (!empty($details)) {
+			echo "<p>" . nl2br(htmlspecialchars($details, ENT_QUOTES, 'UTF-8')) . "</p>";
+		}
+		echo "<p>Please install the missing PHP requirements or restore the referenced configuration file, then reload this page.</p>";
+		echo "</div>";
+		exit;
+	}
+}
+
+if (!function_exists('ogp_render_missing_xml_extensions')) {
+	function ogp_render_missing_xml_extensions($missing_extensions)
+	{
+		$pretty = implode(', ', $missing_extensions);
+		$details = "Missing PHP extension(s): {$pretty}\n"
+				 . "Install the php-xml package and restart Apache/PHP-FPM.\n"
+				 . "Debian/Ubuntu: sudo apt install php-xml\n"
+				 . "RHEL/CentOS: sudo dnf install php-xml";
+		ogp_render_config_error("Required PHP XML extensions are not available.", $details);
+	}
+}
+
+if (!function_exists('ogp_format_libxml_errors')) {
+	function ogp_format_libxml_errors()
+	{
+		$errors = libxml_get_errors();
+		if (empty($errors)) {
+			return "No additional libxml details are available.";
+		}
+		$messages = array();
+		foreach ($errors as $error) {
+			$messages[] = trim($error->message) . " (Line {$error->line}, Column {$error->column})";
+		}
+		libxml_clear_errors();
+		return implode("\n", $messages);
+	}
+}
+
+if (!function_exists('ogp_ensure_xml_support')) {
+	function ogp_ensure_xml_support()
+	{
+		static $checked = false;
+		if ($checked) {
+			return;
+		}
+
+		$missing = array();
+		if (!extension_loaded('libxml')) {
+			$missing[] = 'libxml';
+		}
+		if (!class_exists('DOMDocument')) {
+			$missing[] = 'dom';
+		}
+		if (!function_exists('simplexml_load_file')) {
+			$missing[] = 'simplexml';
+		}
+
+		if (!empty($missing)) {
+			ogp_render_missing_xml_extensions($missing);
+		}
+
+		$checked = true;
+	}
+}
+
 /// \return FALSE in case of failure in parsing.
 /// \return array containing the elements on success.
 function read_server_config( $filename )
 {
-	if ( !class_exists('DOMDocument') )
+	ogp_ensure_xml_support();
+
+	if (!is_readable($filename)) {
+		ogp_render_config_error(
+			"Game configuration file is missing or unreadable.",
+			"Expected at: {$filename}"
+		);
+	}
+
+	$previous_error_state = libxml_use_internal_errors(true);
+	$dom = new DOMDocument();
+	if ($dom->load($filename) === FALSE)
 	{
-		print_failure("PHP DOM extension not found. Install the php-xml package to enable game configuration parsing.");
-		return FALSE;
+		ogp_render_config_error(
+			"Unable to load XML configuration.",
+			"File: {$filename}\n".ogp_format_libxml_errors()
+		);
 	}
 
-	if ( !function_exists('simplexml_load_file') )
+	if ( $dom->schemaValidate(XML_SCHEMA) !== TRUE )
 	{
-		print_failure("PHP SimpleXML extension not found. Install the php-xml package to enable game configuration parsing.");
-		return FALSE;
+		ogp_render_config_error(
+			"XML configuration failed schema validation.",
+			"File: {$filename}\nSchema: ".XML_SCHEMA."\n".ogp_format_libxml_errors()
+		);
 	}
 
-    $dom = new DOMDocument();
-    if ( $dom->load($filename) === FALSE )
-    {
-        print_failure(get_lang_f('unable_to_load_xml',$filename));
-        return FALSE;
-    }
-    if ( $dom->schemaValidate(XML_SCHEMA) != TRUE )
-    {
-        print_failure(get_lang_f('xml_file_not_valid',$filename,XML_SCHEMA));
-        return FALSE;
-    }
-
-    $xml = simplexml_load_file($filename);
-    if($xml !== false){
-		$xml->addChild('home_cfg_file',basename($filename));
-		return $xml;
+	$xml = simplexml_import_dom($dom);
+	if($xml === false){
+		ogp_render_config_error(
+			"Failed to parse XML configuration.",
+			"File: {$filename}\n".ogp_format_libxml_errors()
+		);
 	}
-	
-	return false;
+
+	$xml->addChild('home_cfg_file',basename($filename));
+	libxml_use_internal_errors($previous_error_state);
+	return $xml;
 }
 
 function xml_get_mod( $server_xml, $mod_key )