From cc0defce869b8f27573071cca80abae59cac2713 Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Fri, 21 Apr 2017 09:48:46 +0200
Subject: [PATCH] Fix failing database schema check in all engines except mysql
 (#5730)

---
 CHANGELOG                          |  1 +
 SQL/mssql.initial.sql              |  1 -
 program/include/rcmail_install.php | 30 ++++++++++++++++++++++--------
 3 files changed, 23 insertions(+), 9 deletions(-)

diff --git a/CHANGELOG b/CHANGELOG
index 49851229d60..42348adb786 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -9,6 +9,7 @@ CHANGELOG Roundcube Webmail
 - Enigma: Always use detached signatures (#5624)
 - Enigma: Fix handling of messages with nested PGP encrypted parts (#5634)
 - Minimize unwanted message loading in preview frame on drag (#5616)
+- Fix failing database schema check in all engines except mysql (#5730)
 - Fix autocomplete popup closing with click outside the input, don't handle Tab key as Enter (#5606)
 - Fix jsdeps.json synchronization on update, warn about missing requirements of install-jsdeps.sh (#5598)
 - Fix missing thread expand icon on search result in widescreen mode (#5613)
diff --git a/SQL/mssql.initial.sql b/SQL/mssql.initial.sql
index 219aaa7752e..6030d704ae1 100644
--- a/SQL/mssql.initial.sql
+++ b/SQL/mssql.initial.sql
@@ -88,7 +88,6 @@ GO
 
 CREATE TABLE [dbo].[session] (
 	[sess_id] [varchar] (128) COLLATE Latin1_General_CI_AI NOT NULL ,
-	[created] [datetime] NOT NULL ,
 	[changed] [datetime] NULL ,
 	[ip] [varchar] (40) COLLATE Latin1_General_CI_AI NOT NULL ,
 	[vars] [text] COLLATE Latin1_General_CI_AI NOT NULL 
diff --git a/program/include/rcmail_install.php b/program/include/rcmail_install.php
index ebc4fd165b8..d45be364d86 100644
--- a/program/include/rcmail_install.php
+++ b/program/include/rcmail_install.php
@@ -448,7 +448,8 @@ public function db_schema_check($db)
         }
 
         // read reference schema from mysql.initial.sql
-        $db_schema = $this->db_read_schema(INSTALL_PATH . 'SQL/mysql.initial.sql');
+        $engine    = $db->db_provider;
+        $db_schema = $this->db_read_schema(INSTALL_PATH . "SQL/$engine.initial.sql");
         $errors    = array();
 
         // check list of tables
@@ -484,13 +485,26 @@ private function db_read_schema($schemafile)
         $keywords    = array('PRIMARY','KEY','INDEX','UNIQUE','CONSTRAINT','REFERENCES','FOREIGN');
 
         foreach ($lines as $line) {
-            if (preg_match('/^\s*create table `?([a-z0-9_]+)`?/i', $line, $m)) {
-                $table_block = $m[1];
-            }
-            else if ($table_block && preg_match('/^\s*`?([a-z0-9_-]+)`?\s+([a-z]+)/', $line, $m)) {
-                $col = $m[1];
-                if (!in_array(strtoupper($col), $keywords)) {
-                    $schema[$table_block][$col] = $m[2];
+            if (preg_match('/^\s*create table ([\S]+)/i', $line, $m)) {
+                $table_name = explode('.', $m[1]);
+                $table_name = end($table_name);
+                $table_name = preg_replace('/[`"\[\]]/', '', $table_name);
+            }
+            else if ($table_name && ($line = trim($line))) {
+                if ($line == 'GO' || $line[0] == ')' || $line[strlen($line)-1] == ';') {
+                    $table_name = null;
+                }
+                else {
+                    $items = explode(' ', $line);
+                    $col   = $items[0];
+                    $col   = preg_replace('/[`"\[\]]/', '', $col);
+
+                    if (!in_array(strtoupper($col), $keywords)) {
+                        $type = strtolower($items[1]);
+                        $type = preg_replace('/[^a-zA-Z0-9()]/', '', $type);
+
+                        $schema[$table_name][$col] = $type;
+                    }
                 }
             }
         }