From 4105c99fbeb2a9ad0bb1104ee0ee7e96886e46a7 Mon Sep 17 00:00:00 2001
From: Gunnar Wrobel <p@rdus.de>
Date: Wed, 12 Jan 2011 11:36:25 +0100
Subject: [PATCH] Bail out if the input is not okay.

---
 components/lib/Components/Helper/Template/Printf.php      | 12 ++++++++++++
 .../Components/Unit/Components/Helper/TemplatesTest.php   | 15 +++++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/components/lib/Components/Helper/Template/Printf.php b/components/lib/Components/Helper/Template/Printf.php
index 1f26742f3..3103392d3 100644
--- a/components/lib/Components/Helper/Template/Printf.php
+++ b/components/lib/Components/Helper/Template/Printf.php
@@ -37,6 +37,18 @@ extends Components_Helper_Template
      */
     public function write(array $parameters = array())
     {
+        foreach ($parameters as $key => $value) {
+            if (!is_string($value)) {
+                throw new Components_Exception(
+                    sprintf(
+                        'File %s is a printf() based template and requires string input only. Key "%s" however is of type %s!',
+                        $this->_source,
+                        $key,
+                        gettype($value)
+                    )
+                );
+            }
+        }
         $source = file_get_contents($this->_source);
         file_put_contents(
             $this->_target, vsprintf($source, $parameters)
diff --git a/components/test/Components/Unit/Components/Helper/TemplatesTest.php b/components/test/Components/Unit/Components/Helper/TemplatesTest.php
index af7762be0..d6282a714 100644
--- a/components/test/Components/Unit/Components/Helper/TemplatesTest.php
+++ b/components/test/Components/Unit/Components/Helper/TemplatesTest.php
@@ -89,6 +89,21 @@ extends Components_TestCase
         );
     }
 
+    /**
+     * @expectedException Components_Exception
+     */
+    public function testNoStringInput()
+    {
+        $tdir =  $this->getTemporaryDirectory();
+        $templates = new Components_Helper_Templates_Single(
+            dirname(__FILE__) . '/../../../fixture/templates',
+            $tdir,
+            'variables',
+            'target'
+        );
+        $templates->write(array('1' => new stdClass, '2' => 'Two'));
+    }
+
     public function testPrefix()
     {
         $tdir =  $this->getTemporaryDirectory();
-- 
2.11.0