Attempt to create database when there is no connection

CHANGELOG

@@ -4,6 +4,7 @@ Add language setting to profile
 Add checks for required extensions
 Move some more settings to the database
 Add CSS to limit list of chatters hight
+Attempt to create database when there is no connection
 
 Version 1.15.3 - Mar. 6, 2016
 Allow using html tags in linkfilter without breaking dereferrer or image embed

README

@@ -43,7 +43,7 @@ Optionally, you can install:
 - a memcached server and the memcached extension and change the configuaration to use memcached. This will lessen the database load a bit.
 - a MySQL or PostgreSQL server to use as an external database instead of SQLite
 - the openssl extension for encryption of messages and notes in the database
-When you have everything installed, you'll have to create a database and a user for the chat in mysql.
+When you have everything installed and use MySQL or PostgreSQL, you'll have to create a database and a user for the chat.
 Then edit the configuration at the bottom of the script to reflect the appropriate database settings and to modify the chat settings the way you like them.
 Then copy the script to your web-server directory and call the script in your browser with a parameter like this:
 	http://(server)/(script-name).php?action=setup

README.md

@@ -46,7 +46,7 @@ Optionally, you can install:
 - a memcached server and the memcached extension and change the configuaration to use memcached. This will lessen the database load a bit.
 - a MySQL or PostgreSQL server to use as an external database instead of SQLite
 - the openssl extension for encryption of messages and notes in the database
-When you have everything installed, you'll have to create a database and a user for the chat in mysql.
+When you have everything installed and use MySQL or PostgreSQL, you'll have to create a database and a user for the chat.
 Then edit the configuration at the bottom of the script to reflect the appropriate database settings and to modify the chat settings the way you like them.
 Then copy the script to your web-server directory and call the script in your browser with a parameter like this:
 	http://(server)/(script-name).php?action=setup

chat.php

@@ -3240,7 +3240,7 @@ function update_db(){
 				$memcached->delete(DBNAME . '-' . PREFIX . 'members');
 				$memcached->delete(DBNAME . '-' . PREFIX . 'ignored');
 			}
-			if(DBDRIVER===0){//MySQL
+			if(DBDRIVER===0){//MySQL - previously had a wrong SQL syntax and the captcha table was not created.
 				$db->exec('CREATE TABLE IF NOT EXISTS ' . PREFIX . 'captcha (id int(10) unsigned NOT NULL AUTO_INCREMENT, time int(10) unsigned NOT NULL, code char(5) NOT NULL, PRIMARY KEY (id) USING BTREE) ENGINE=MEMORY DEFAULT CHARSET=utf8 COLLATE=utf8_bin;');
 			}
 		}
@@ -3323,6 +3323,25 @@ function check_db(){
 			}
 			$db=new PDO('sqlite:' . SQLITEDBFILE, NULL, NULL, $options);
 		}
+	}catch(PDOException $e){
+		try{
+			//Attempt to create database
+			if(DBDRIVER===0){
+				$db=new PDO('mysql:host=' . DBHOST, DBUSER, DBPASS, $options);
+				if(false!==$db->exec('CREATE DATABASE ' . DBNAME)){
+					$db=new PDO('mysql:host=' . DBHOST . ';dbname=' . DBNAME, DBUSER, DBPASS, $options);
+				}else{
+					die($I['nodbsetup']);
+				}
+
+			}elseif(DBDRIVER===1){
+				$db=new PDO('pgsql:host=' . DBHOST, DBUSER, DBPASS, $options);
+				if(false!==$db->exec('CREATE DATABASE ' . DBNAME)){
+					$db=new PDO('pgsql:host=' . DBHOST . ';dbname=' . DBNAME, DBUSER, DBPASS, $options);
+				}else{
+					die($I['nodbsetup']);
+				}
+			}
 		}catch(PDOException $e){
 			if(isSet($_REQUEST['action']) && $_REQUEST['action']==='setup'){
 				die($I['nodbsetup']);
@@ -3330,6 +3349,7 @@ function check_db(){
 				die($I['nodb']);
 			}
 		}
+	}
 	if(MEMCACHED){
 		if(!extension_loaded('memcached')){
 			die($I['memcachedextrequired']);