Fix a bug where product media upload via API was not possible anymore. (

#1302)

* bump version

* Fix _addUrlRewrite() ignoring collection store scope. (#510)

While Mage_Catalog_Model_Resource_Product_Collection::addUrlRewrite()
does respect any set storeId on the collection it's helper that does
the actual work is hard-coded to the current active store.

* Add doc comments to image related classes (#1146)

* Prevent duplicate entry when updating salesrule_coupon_usage (#1117)

* remove $timesUsed > 0 check to prevent duplicate entry

* Prevent $timesUsed from going less than 0

* Fix a bug where media upload via API are not possible anymore: #1178

* revert unwanted changes

* Update lib/Varien/Io/File.php

Co-authored-by: Flyingmana <flyingmana@googlemail.com>
Co-authored-by: Colin Mollenhour <colin@mollenhour.com>
Co-authored-by: Erik Dannenberg <ed@reshape.de>
Co-authored-by: Tymoteusz Motylewski <t.motylewski@gmail.com>
Co-authored-by: Dean Williams <me@deanwilliams.org>
Co-authored-by: sv3n <github-sr@hotmail.com>

lib/Varien/Io/File.php

@@ -486,8 +486,12 @@ public function write($filename, $src, $mode=null)
      */
     protected function _IsValidSource($src)
     {
-        //Treat string that contains a null byte as invalid
-        if ((is_string($src) && strpos($src, chr(0)) === false) || is_resource($src)) {
+        // In case of a string
+        if (is_string($src)) {
+            // If its a file we check for null byte
+            // If it's not a valid path, file_exists() will return a falsey value, and the @ will keep it from complaining about the bad string.
+            return !(@file_exists($src) && strpos($src, chr(0)) !== false);
+        } elseif (is_resource($src)) {
             return true;
         }
 
@@ -533,7 +537,7 @@ protected function _isFilenameWriteable($filename)
     protected function _checkSrcIsFile($src)
     {
         $result = false;
-        if (is_string($src) && is_readable($src) && is_file($src)) {
+        if (is_string($src) && @is_readable($src) && is_file($src)) {
             $result = true;
         }