Magento Unicode URL Key for Products, Categories, CMS Pages

By default, Magento does not support using UTF-8 characters as URL Keys. This tutorial shows how to make Magento accept non-English characters for Products, Categories, and CMS pages.

This solution has been tested on Magento CE 1.9.1.0+:

1. Open \app\code\core\Mage\Core\Controller\Request\Http.php . At the setPathInfo method replace:

$requestUri = $this->getRequestUri();

with:

$requestUri = urldecode($this->getRequestUri());

2. Open \app\code\core\Mage\Catalog\Model\Product\Url.php and at the formatUrlKey method replace:

$urlKey = preg_replace('#[^0-9a-z]+#i', '-', Mage::helper('catalog/product_url')->format($str));
$urlKey = strtolower($urlKey);

with

$urlKey = preg_replace('#()*!~-=+|\/[^0-9a-z%]+#i', '-', Mage::helper('catalog/product_url')->format($str));
$urlKey = str_replace(' ', '-', $urlKey);
$urlKey = mb_strtolower($urlKey,'UTF-8');

3. Open \app\code\core\Mage\Catalog\Model\Category.php and at the formatUrlKey method replace:

$urlKey = preg_replace('#[^0-9a-z]+#i', '-', $str);
$urlKey = strtolower($urlKey);

with:

$urlKey = preg_replace('#()*!~-=+|\/[^0-9a-z%]+#i', '-', $str);
$urlKey = str_replace(' ', '-', $urlKey);
$urlKey = mb_strtolower($urlKey,'UTF-8');

4- Open \app\code\core\Mage\Cms\Model\Resource\Page.php and at the _beforeSave add this code after the first foreach:

// url key utf8
$str = $object->getData('identifier');
$identifier = preg_replace('#()*!~-=+|\/[^0-9a-z%]+#i', '-', $str);
$identifier = str_replace(' ', '-', $identifier);
$identifier = mb_strtolower($identifier,'UTF-8');
$identifier = trim($identifier, '-');
$object->setData('identifier', $identifier);
//url key utf8

Also at the same file find isValidPageIdentifier method and replace:

return preg_match('/^[a-z0-9][a-z0-9_\/-]+(\.[a-z0-9_-]+)?$/', $object->getData('identifier'));

with:

return TRUE;

5. Open \app\code\core\Mage\Adminhtml\Block\Cms\Page\Edit\Tab\Main.php and at the _prepareForm method replace:

$fieldset->addField('identifier', 'text', array(
  'name' => 'identifier',
  'label' => Mage::helper('cms')->__('URL Key'),
  'title' => Mage::helper('cms')->__('URL Key'),
  'required' => true,
  'class' => 'validate-identifier',
  'note' => Mage::helper('cms')->__('Relative to Website Base URL'),
  'disabled' => $isElementDisabled
));

with:

$fieldset->addField('identifier', 'text', array(
  'name' => 'identifier',
  'label' => Mage::helper('cms')->__('URL Key'),
  'title' => Mage::helper('cms')->__('URL Key'),
  'required' => true,
  'class' => '',
  'note' => Mage::helper('cms')->__('Relative to Website Base URL'),
  'disabled' => $isElementDisabled
));

This is the code responsible for javascript validator at admin CMS pages, which by default, accepts only English characters. This managed by adding a validate-identifier class to the related textfield. By commenting this line out, the admin can enter every character includes non-English characters.

And don't forget to clear the cache. Also if the compilation is enabled, run Compilation Process.