experimental SQL-based error logger

classes/logger.php

@@ -0,0 +1,24 @@
+<?php
+class Logger {
+
+	protected $errornames = array(
+		2			=> 'E_WARNING',
+		8			=> 'E_NOTICE',
+		256		=> 'E_USER_ERROR',
+		512		=> 'E_USER_WARNING',
+		1024		=> 'E_USER_NOTICE',
+		2048		=> 'E_STRICT',
+		4096		=> 'E_RECOVERABLE_ERROR',
+		8192		=> 'E_DEPRECATED',
+		16384		=> 'E_USER_DEPRECATED',
+		32767		=> 'E_ALL');
+
+	function log_error($errno, $errstr, $file, $line, $context) {
+		return false;
+	}
+
+	function log($string) {
+		return false;
+	}
+}
+?>

classes/logger/sql.php

@@ -0,0 +1,35 @@
+<?php
+class Logger_SQL {
+
+	private $link;
+
+	function __construct() {
+		$this->link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
+	}
+
+	function log_error($errno, $errstr, $file, $line, $context) {
+
+		if ($errno == E_NOTICE) return false;
+
+		if ($this->link) {
+			$errno = db_escape_string($this->link, $errno);
+			$errstr = db_escape_string($this->link, $errstr);
+			$file = db_escape_string($this->link, $file);
+			$line = db_escape_string($this->link, $line);
+			$context = db_escape_string($this->link, json_encode($context));
+
+			$owner_uid = $_SESSION["uid"] ? $_SESSION["uid"] : "NULL";
+
+			$result = db_query($this->link,
+				"INSERT INTO ttrss_error_log
+				(errno, errstr, filename, lineno, context, owner_uid, created_at) VALUES
+				($errno, '$errstr', '$file', '$line', '$context', $owner_uid, NOW())");
+
+			return db_affected_rows($this->link, $result) != 0;
+
+		}
+		return false;
+	}
+
+}
+?>

include/errorhandler.php

@@ -0,0 +1,50 @@
+<?php
+// TODO: make configurable
+require_once "classes/logger.php";
+require_once "classes/logger/sql.php";
+
+function ttrss_error_handler($errno, $errstr, $file, $line, $context) {
+	global $logger;
+
+	if (!$logger) $logger = new Logger_SQL();
+
+	$errfile = str_replace(dirname(dirname(__FILE__)), "", $errfile);
+
+	if ($logger) {
+		return $logger->log_error($errno, $errstr, $file, $line, $context);
+	}
+
+	return false;
+}
+
+function ttrss_fatal_handler() {
+	global $logger;
+
+	$file		= "UNKNOWN FILE";
+	$errstr  = "UNKNOWN";
+	$errno   = E_CORE_ERROR;
+	$line		= -1;
+
+	$error = error_get_last();
+
+	if ($error !== NULL) {
+		$errno   = $error["type"];
+		$file = $error["file"];
+		$line = $error["line"];
+		$errstr  = $error["message"];
+
+		$context = debug_backtrace();
+
+		$file = str_replace(dirname(dirname(__FILE__)) . "/", "", $file);
+
+		if (!$logger) $logger = new Logger_SQL();
+
+		if ($logger) {
+			$logger->log_error($errno, $errstr, $file, $line, $context);
+		}
+	}
+}
+
+register_shutdown_function('ttrss_fatal_handler');
+set_error_handler('ttrss_error_handler');
+?>

include/functions.php

@@ -1,6 +1,6 @@
 <?php
 	define('EXPECTED_CONFIG_VERSION', 26);
-	define('SCHEMA_VERSION', 117);
+	define('SCHEMA_VERSION', 118);
 
 	define('LABEL_BASE_INDEX', -1024);
 	define('PLUGIN_FEED_BASE_INDEX', -128);
@@ -3369,9 +3369,8 @@
 		return is_file(ICONS_DIR . "/$id.ico") && filesize(ICONS_DIR . "/$id.ico") > 0;
 	}
 
-	function init_connection($link) {
+	function init_connection_only($link) {
 		if ($link) {
-
 			if (DB_TYPE == "pgsql") {
 				pg_query($link, "set client_encoding = 'UTF-8'");
 				pg_set_client_encoding("UNICODE");
@@ -3385,6 +3384,16 @@
 				}
 			}
 
+			return true;
+		}
+
+		return false;
+	}
+
+	function init_connection($link) {
+		if ($link) {
+			init_connection_only($link);
+
 			global $pluginhost;
 
 			$pluginhost = new PluginHost($link);

include/sessions.php

@@ -3,6 +3,7 @@
 
 	require_once "config.php";
 	require_once "db.php";
+	require_once "errorhandler.php";
 	require_once "lib/accept-to-gettext.php";
 	require_once "lib/gettext/gettext.inc";
 	require_once "version.php";

schema/ttrss_schema_mysql.sql

@@ -1,6 +1,7 @@
 SET NAMES utf8;
 SET CHARACTER SET utf8;
 
+drop table if exists ttrss_error_log;
 drop table if exists ttrss_plugin_storage;
 drop table if exists ttrss_linked_feeds;
 drop table if exists ttrss_linked_instances;
@@ -299,7 +300,7 @@ create table ttrss_tags (id integer primary key auto_increment,
 
 create table ttrss_version (schema_version int not null) ENGINE=InnoDB DEFAULT CHARSET=UTF8;
 
-insert into ttrss_version values (117);
+insert into ttrss_version values (118);
 
 create table ttrss_enclosures (id integer primary key auto_increment,
 	content_url text not null,
@@ -478,5 +479,15 @@ create table ttrss_plugin_storage (
 	content longtext not null,
   	foreign key (owner_uid) references ttrss_users(id) ON DELETE CASCADE) ENGINE=InnoDB DEFAULT CHARSET=UTF8;
 
+create table ttrss_error_log(
+	id integer not null auto_increment primary key,
+	owner_uid integer,
+	errno integer not null,
+	errstr text not null,
+	filename text not null,
+	lineno integer not null,	
+	context text not null,
+	created_at datetime not null,
+	foreign key (owner_uid) references ttrss_users(id) ON DELETE SET NULL) ENGINE=InnoDB DEFAULT CHARSET=UTF8;
 
 commit;

schema/ttrss_schema_pgsql.sql

@@ -1,3 +1,4 @@
+drop table if exists ttrss_error_log;
 drop table if exists ttrss_plugin_storage;
 drop table if exists ttrss_linked_feeds;
 drop table if exists ttrss_linked_instances;
@@ -257,7 +258,7 @@ create index ttrss_tags_post_int_id_idx on ttrss_tags(post_int_id);
 
 create table ttrss_version (schema_version int not null);
 
-insert into ttrss_version values (117);
+insert into ttrss_version values (118);
 
 create table ttrss_enclosures (id serial not null primary key,
 	content_url text not null,
@@ -421,4 +422,14 @@ create table ttrss_plugin_storage (
 	owner_uid integer not null references ttrss_users(id) ON DELETE CASCADE,
 	content text not null);
 
+create table ttrss_error_log(
+	id serial not null primary key,
+	owner_uid integer references ttrss_users(id) ON DELETE SET NULL,
+	errno integer not null,
+	errstr text not null,
+	filename text not null,
+	lineno integer not null,	
+	context text not null,
+	created_at timestamp not null);
+
 commit;

schema/versions/mysql/118.sql

@@ -0,0 +1,16 @@
+begin;
+
+create table ttrss_error_log(
+	id integer not null auto_increment primary key,
+	owner_uid integer,
+	errno integer not null,
+	errstr text not null,
+	filename text not null,
+	lineno integer not null,	
+	context text not null,
+	created_at datetime not null,
+	foreign key (owner_uid) references ttrss_users(id) ON DELETE SET NULL) ENGINE=InnoDB DEFAULT CHARSET=UTF8;
+
+update ttrss_version set schema_version = 118;
+
+commit;

schema/versions/pgsql/118.sql

@@ -0,0 +1,15 @@
+begin;
+
+create table ttrss_error_log(
+	id serial not null primary key,
+	owner_uid integer references ttrss_users(id) ON DELETE SET NULL,
+	errno integer not null,
+	errstr text not null,
+	filename text not null,
+	lineno integer not null,	
+	context text not null,
+	created_at timestamp not null);
+
+update ttrss_version set schema_version = 118;
+
+commit;