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<?php
/**
* @file
* Contains \Drupal\language\Form\NegotiationUrlForm.
*/
namespace Drupal\language\Form;
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use Drupal\Core\Form\ConfigFormBase;
use Drupal\language\Plugin\LanguageNegotiation\LanguageNegotiationUrl;
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/**
* Configure the URL language negotiation method for this site.
*/
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class NegotiationUrlForm extends ConfigFormBase {
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/**
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* {@inheritdoc}
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*/
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public function getFormId() {
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return 'language_negotiation_configure_url_form';
}
/**
* Implements \Drupal\Core\Form\FormInterface::buildForm().
*/
public function buildForm(array $form, array &$form_state) {
global $base_url;
$config = $this->configFactory->get('language.negotiation');
$form['language_negotiation_url_part'] = array(
'#title' => t('Part of the URL that determines language'),
'#type' => 'radios',
'#options' => array(
LanguageNegotiationUrl::CONFIG_PATH_PREFIX => t('Path prefix'),
LanguageNegotiationUrl::CONFIG_DOMAIN => t('Domain'),
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),
'#default_value' => $config->get('url.source'),
);
$form['prefix'] = array(
'#type' => 'details',
'#tree' => TRUE,
'#title' => t('Path prefix configuration'),
'#description' => t('Language codes or other custom text to use as a path prefix for URL language detection. For the default language, this value may be left blank. <strong>Modifying this value may break existing URLs. Use with caution in a production environment.</strong> Example: Specifying "deutsch" as the path prefix code for German results in URLs like "example.com/deutsch/contact".'),
'#states' => array(
'visible' => array(
':input[name="language_negotiation_url_part"]' => array(
'value' => (string) LanguageNegotiationUrl::CONFIG_PATH_PREFIX,
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),
),
),
);
$form['domain'] = array(
'#type' => 'details',
'#tree' => TRUE,
'#title' => t('Domain configuration'),
'#description' => t('The domain names to use for these languages. Leave blank for the default language. Use with caution in a production environment.<strong>Modifying this value may break existing URLs. Use with caution in a production environment.</strong> Example: Specifying "de.example.com" as language domain for German will result in an URL like "http://de.example.com/contact".'),
'#states' => array(
'visible' => array(
':input[name="language_negotiation_url_part"]' => array(
'value' => (string) LanguageNegotiationUrl::CONFIG_DOMAIN,
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),
),
),
);
$languages = language_list();
$prefixes = language_negotiation_url_prefixes();
$domains = language_negotiation_url_domains();
foreach ($languages as $langcode => $language) {
$t_args = array('%language' => $language->name, '%langcode' => $language->id);
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$form['prefix'][$langcode] = array(
'#type' => 'textfield',
'#title' => $language->default ? t('%language (%langcode) path prefix (Default language)', $t_args) : t('%language (%langcode) path prefix', $t_args),
'#maxlength' => 64,
'#default_value' => isset($prefixes[$langcode]) ? $prefixes[$langcode] : '',
'#field_prefix' => $base_url . '/',
);
$form['domain'][$langcode] = array(
'#type' => 'textfield',
'#title' => t('%language (%langcode) domain', array('%language' => $language->name, '%langcode' => $language->id)),
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'#maxlength' => 128,
'#default_value' => isset($domains[$langcode]) ? $domains[$langcode] : '',
);
}
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$form_state['redirect_route']['route_name'] = 'language.negotiation';
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return parent::buildForm($form, $form_state);
}
/**
* Implements \Drupal\Core\Form\FormInterface::validateForm().
*/
public function validateForm(array &$form, array &$form_state) {
$languages = language_list();
// Count repeated values for uniqueness check.
$count = array_count_values($form_state['values']['prefix']);
foreach ($languages as $langcode => $language) {
$value = $form_state['values']['prefix'][$langcode];
if ($value === '') {
if (!$language->default && $form_state['values']['language_negotiation_url_part'] == LanguageNegotiationUrl::CONFIG_PATH_PREFIX) {
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// Throw a form error if the prefix is blank for a non-default language,
// although it is required for selected negotiation type.
$this->setFormError("prefix][$langcode", $form_state, t('The prefix may only be left blank for the default language.'));
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}
}
elseif (strpos($value, '/') !== FALSE) {
// Throw a form error if the string contains a slash,
// which would not work.
$this->setFormError("prefix][$langcode", $form_state, t('The prefix may not contain a slash.'));
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}
elseif (isset($count[$value]) && $count[$value] > 1) {
// Throw a form error if there are two languages with the same
// domain/prefix.
$this->setFormError("prefix][$langcode", $form_state, t('The prefix for %language, %value, is not unique.', array('%language' => $language->name, '%value' => $value)));
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}
}
// Count repeated values for uniqueness check.
$count = array_count_values($form_state['values']['domain']);
foreach ($languages as $langcode => $language) {
$value = $form_state['values']['domain'][$langcode];
if ($value === '') {
if (!$language->default && $form_state['values']['language_negotiation_url_part'] == LanguageNegotiationUrl::CONFIG_DOMAIN) {
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// Throw a form error if the domain is blank for a non-default language,
// although it is required for selected negotiation type.
$this->setFormError("domain][$langcode", $form_state, t('The domain may only be left blank for the default language.'));
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}
}
elseif (isset($count[$value]) && $count[$value] > 1) {
// Throw a form error if there are two languages with the same
// domain/domain.
$this->setFormError("domain][$langcode", $form_state, t('The domain for %language, %value, is not unique.', array('%language' => $language->name, '%value' => $value)));
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}
}
// Domain names should not contain protocol and/or ports.
foreach ($languages as $langcode => $name) {
$value = $form_state['values']['domain'][$langcode];
if (!empty($value)) {
// Ensure we have exactly one protocol when checking the hostname.
$host = 'http://' . str_replace(array('http://', 'https://'), '', $value);
if (parse_url($host, PHP_URL_HOST) != $value) {
$this->setFormError("domain][$langcode", $form_state, t('The domain for %language may only contain the domain name, not a protocol and/or port.', array('%language' => $name)));
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}
}
}
parent::validateForm($form, $form_state);
}
/**
* Implements \Drupal\Core\Form\FormInterface::submitForm().
*/
public function submitForm(array &$form, array &$form_state) {
// Save selected format (prefix or domain).
$this->configFactory->get('language.negotiation')
->set('url.source', $form_state['values']['language_negotiation_url_part'])
->save();
// Save new domain and prefix values.
language_negotiation_url_prefixes_save($form_state['values']['prefix']);
language_negotiation_url_domains_save($form_state['values']['domain']);
parent::submitForm($form, $form_state);
}
}