From b96be346de62308321d1191c393c569bfa56094f Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Thu, 20 Jun 2013 09:12:20 -0400
Subject: [PATCH] Canonize boolean ini_get() results (#1489189)

---
 installer/check.php |   47 ++++++++++++++++++++++++++++++++++++-----------
 1 files changed, 36 insertions(+), 11 deletions(-)

diff --git a/installer/check.php b/installer/check.php
index 52460bb..122437b 100644
--- a/installer/check.php
+++ b/installer/check.php
@@ -1,3 +1,10 @@
+<?php
+
+if (!class_exists('rcube_install') || !is_object($RCI)) {
+    die("Not allowed! Please open installer/index.php instead.");
+}
+
+?>
 <form action="index.php" method="get">
 <?php
 
@@ -35,12 +42,12 @@
     'suhosin.session.encrypt'       => 0,
     'magic_quotes_runtime'          => 0,
     'magic_quotes_sybase'           => 0,
+    'date.timezone'                 => '-NOTEMPTY-',
 );
 
 $optional_checks = array(
     // required for utils/modcss.inc, should we require this?
     'allow_url_fopen'  => 1,
-    'date.timezone'    => '-NOTEMPTY-',
 );
 
 $source_urls = array(
@@ -57,12 +64,12 @@
     'Intl'      => 'http://www.php.net/manual/en/book.intl.php',
     'Exif'      => 'http://www.php.net/manual/en/book.exif.php',
     'PDO'       => 'http://www.php.net/manual/en/book.pdo.php',
-    'pdo_mysql'   => 'http://www.php.net/manual/en/book.pdo-mysql.php',
-    'pdo_pgsql'   => 'http://www.php.net/manual/en/book.pdo-pgsql.php',
-    'pdo_sqlite'  => 'http://www.php.net/manual/en/book.pdo-sqlite.php',
-    'pdo_sqlite2' => 'http://www.php.net/manual/en/book.pdo-sqlite.php',
-    'pdo_sqlsrv'  => 'http://www.php.net/manual/en/book.pdo-sqlsrv.php',
-    'pdo_dblib'   => 'http://www.php.net/manual/en/book.pdo-dblib.php',
+    'pdo_mysql'   => 'http://www.php.net/manual/en/ref.pdo-mysql.php',
+    'pdo_pgsql'   => 'http://www.php.net/manual/en/ref.pdo-pgsql.php',
+    'pdo_sqlite'  => 'http://www.php.net/manual/en/ref.pdo-sqlite.php',
+    'pdo_sqlite2' => 'http://www.php.net/manual/en/ref.pdo-sqlite.php',
+    'pdo_sqlsrv'  => 'http://www.php.net/manual/en/ref.pdo-sqlsrv.php',
+    'pdo_dblib'   => 'http://www.php.net/manual/en/ref.pdo-dblib.php',
     'PEAR'      => 'http://pear.php.net',
     'Net_SMTP'  => 'http://pear.php.net/package/Net_SMTP',
     'Mail_mime' => 'http://pear.php.net/package/Mail_mime',
@@ -130,7 +137,14 @@
 $prefix = (PHP_SHLIB_SUFFIX === 'dll') ? 'php_' : '';
 foreach ($RCI->supported_dbs as $database => $ext) {
     if (extension_loaded($ext)) {
-        $RCI->pass($database);
+        // MySQL driver requires PHP >= 5.3 (#1488875)
+        if ($ext == 'pdo_mysql' && version_compare(PHP_VERSION, '5.3.0', '<')) {
+            $RCI->fail($database, 'PHP >= 5.3 required', null, true);
+        }
+        else {
+            $RCI->pass($database);
+            $found_db_driver = true;
+        }
     }
     else {
         $_ext = $ext_dir . '/' . $prefix . $ext . '.' . PHP_SHLIB_SUFFIX;
@@ -138,6 +152,9 @@
         $RCI->na($database, $msg, $source_urls[$ext]);
     }
     echo '<br />';
+}
+if (empty($found_db_driver)) {
+  $RCI->failures++;
 }
 
 ?>
@@ -171,14 +188,22 @@
     $status = ini_get($var);
     if ($val === '-NOTEMPTY-') {
         if (empty($status)) {
-            $RCI->fail($var, "cannot be empty and needs to be set");
+            $RCI->fail($var, "empty value detected");
+        } else if ($var == 'date.timezone') {
+            try {
+                $tz = new DateTimeZone($status);
+                $RCI->pass($var);
+            }
+            catch (Exception $e) {
+                $RCI->fail($var, "invalid value detected: $status");
+            }
         } else {
             $RCI->pass($var);
         }
         echo '<br />';
         continue;
     }
-    if ($status == $val) {
+    if (filter_var($status, FILTER_VALIDATE_BOOLEAN) == $val) {
         $RCI->pass($var);
     } else {
       $RCI->fail($var, "is '$status', should be '$val'");
@@ -202,7 +227,7 @@
         echo '<br />';
         continue;
     }
-    if ($status == $val) {
+    if (filter_var($status, FILTER_VALIDATE_BOOLEAN) == $val) {
         $RCI->pass($var);
     } else {
       $RCI->optfail($var, "is '$status', could be '$val'");

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