From 96ed11a536c21cd5dca1fba68a03ab1105ff1a28 Mon Sep 17 00:00:00 2001
From: Michael Walker <mike@barrucadu.co.uk>
Date: Thu, 1 Sep 2016 18:59:01 +0100
Subject: Revert "Error overhaul"

---
 inc/functions.php | 58 ++++++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 51 insertions(+), 7 deletions(-)

(limited to 'inc/functions.php')

diff --git a/inc/functions.php b/inc/functions.php
index e8beaba2..ff5d51df 100755
--- a/inc/functions.php
+++ b/inc/functions.php
@@ -12,7 +12,7 @@ if (realpath($_SERVER['SCRIPT_FILENAME']) == str_replace('\\', '/', __FILE__)) {
 define('TINYBOARD', null);
 
 $microtime_start = microtime(true);
-require_once 'inc/error.php';
+
 require_once 'inc/cache.php';
 require_once 'inc/display.php';
 require_once 'inc/template.php';
@@ -26,10 +26,11 @@ if (!extension_loaded('gettext')) {
 // the user is not currently logged in as a moderator
 $mod = false;
 
+register_shutdown_function('fatal_error_handler');
 mb_internal_encoding('UTF-8');
 loadConfig();
 
-function init_locale($locale) {
+function init_locale($locale, $error='error') {
 	if (extension_loaded('gettext')) {
 		if (setlocale(LC_ALL, $locale) === false) {
 			//$error('The specified locale (' . $locale . ') does not exist on your platform!');
@@ -39,7 +40,7 @@ function init_locale($locale) {
 		textdomain('tinyboard');
 	} else {
 		if (_setlocale(LC_ALL, $locale) === false) {
-			error('The specified locale (' . $locale . ') does not exist on your platform!');
+			$error('The specified locale (' . $locale . ') does not exist on your platform!');
 		}
 		_bindtextdomain('tinyboard', './inc/locale');
 		_bind_textdomain_codeset('tinyboard', 'UTF-8');
@@ -52,6 +53,8 @@ $current_locale = 'en';
 function loadConfig() {
 	global $board, $config, $__ip, $debug, $__version, $microtime_start, $current_locale, $events;
 
+	$error = function_exists('error') ? 'error' : 'basic_error_function_because_the_other_isnt_loaded_yet';
+
 	$boardsuffix = isset($board['uri']) ? $board['uri'] : '';
 
 	if (!isset($_SERVER['REMOTE_ADDR']))
@@ -74,7 +77,7 @@ function loadConfig() {
 
 		if ($config['locale'] != $current_locale) {
                 	$current_locale = $config['locale'];
-                	init_locale($config['locale']);
+                	init_locale($config['locale'], $error);
         	}
 	}
 	else {
@@ -115,7 +118,7 @@ function loadConfig() {
 		}
 
 		if (!file_exists('inc/instance-config.php'))
-			error('Tinyboard is not configured! Create inc/instance-config.php.');
+			$error('Tinyboard is not configured! Create inc/instance-config.php.');
 
 		// Initialize locale as early as possible
 
@@ -145,7 +148,7 @@ function loadConfig() {
 
 		if ($config['locale'] != $current_locale) {
 			$current_locale = $config['locale'];
-			init_locale($config['locale']);
+			init_locale($config['locale'], $error);
 		}
 
 		require 'inc/config.php';
@@ -158,7 +161,7 @@ function loadConfig() {
 
 		if ($config['locale'] != $current_locale) {
 			$current_locale = $config['locale'];
-			init_locale($config['locale']);
+			init_locale($config['locale'], $error);
 		}
 
 		if (!isset($config['global_message']))
@@ -268,6 +271,7 @@ function loadConfig() {
 		$_SERVER['REMOTE_ADDR'] = $m[2];
 
 	if ($config['verbose_errors']) {
+		set_error_handler('verbose_error_handler');
 		error_reporting(E_ALL);
 		ini_set('display_errors', true);
 		ini_set('html_errors', false);
@@ -328,6 +332,36 @@ function loadConfig() {
 	}
 }
 
+function basic_error_function_because_the_other_isnt_loaded_yet($message, $priority = true) {
+	global $config;
+
+	if ($config['syslog'] && $priority !== false) {
+		// Use LOG_NOTICE instead of LOG_ERR or LOG_WARNING because most error message are not significant.
+		_syslog($priority !== true ? $priority : LOG_NOTICE, $message);
+	}
+
+	// Yes, this is horrible.
+	die('<!DOCTYPE html><html><head><title>Error</title>' .
+		'<style type="text/css">' .
+			'body{text-align:center;font-family:arial, helvetica, sans-serif;font-size:10pt;}' .
+			'p{padding:0;margin:20px 0;}' .
+			'p.c{font-size:11px;}' .
+		'</style></head>' .
+		'<body><h2>Error</h2>' . $message . '<hr/>' .
+		'<p class="c">This alternative error page is being displayed because the other couldn\'t be found or hasn\'t loaded yet.</p></body></html>');
+}
+
+function fatal_error_handler() { 
+	if ($error = error_get_last()) {
+		if ($error['type'] == E_ERROR) {
+			if (function_exists('error')) {
+				error('Caught fatal error: ' . $error['message'] . ' in <strong>' . $error['file'] . '</strong> on line ' . $error['line'], LOG_ERR);
+			} else {
+				basic_error_function_because_the_other_isnt_loaded_yet('Caught fatal error: ' . $error['message'] . ' in ' . $error['file'] . ' on line ' . $error['line'], LOG_ERR);
+			}
+		}
+	}
+}
 
 function _syslog($priority, $message) {
 	if (isset($_SERVER['REMOTE_ADDR'], $_SERVER['REQUEST_METHOD'], $_SERVER['REQUEST_URI'])) {
@@ -338,6 +372,16 @@ function _syslog($priority, $message) {
 	}
 }
 
+function verbose_error_handler($errno, $errstr, $errfile, $errline) {
+	if (error_reporting() == 0)
+		return false; // Looks like this warning was suppressed by the @ operator.
+	error(utf8tohtml($errstr), true, array(
+		'file' => $errfile . ':' . $errline,
+		'errno' => $errno,
+		'error' => $errstr,
+		'backtrace' => array_slice(debug_backtrace(), 1)
+	));
+}
 
 function define_groups() {
 	global $config;
-- 
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