<?php

/**
 * Test setting a global protocol, and using it for links when needed.
 *
 * Ensure that any links that are created not using an explict protocol (e.g.
 * a link entered as www.drupal.org, without a http:// or https:// prefix) will
 * use the globally defined protocol.
 *
 * Any links created with an explicit protocol will continue to use that
 * protocol and will ignore the global setting.
 */
class LinkDefaultProtocolTest extends LinkBaseTestClass {

  /**
   * Get Info.
   */
  public static function getInfo() {
    return array(
      'name' => 'Set default link protocol',
      'description' => 'Test that an url with a default protocol set.',
      'group' => 'Link',
    );
  }

  /**
   * {@inheritdoc}
   */
  public function setUp(array $modules = array()) {
    // This extra permission is required for the settings page.
    $this->permissions['administer site configuration'] = 'administer site configuration';
    parent::setUp($modules);
  }

  /**
   * A link without a default protocol uses the default (HTTP).
   */
  public function testHttpDefaultProtocolOnUrlWithoutDefinedProtocol() {
    $user = $this->drupalCreateUser($this->permissions);
    $this->drupalLogin($user);

    $this->createNodeWithLink('www.example.com');

    $this->drupalGet('node/1');

    $this->assertRaw('http://www.example.com');
  }

  /**
   * The protocol is set to HTTP by default if a wrong protocol has been set.
   */
  public function testHttpDefaultProtocolFromVariableConf() {
    variable_set('link_default_protocol', 'banana');

    try {
      link_ensure_valid_default_protocol();
    }
    catch (Exception $e) {
    }

    $protocol = variable_get('link_default_protocol');

    $this->assertEqual($protocol, LINK_HTTP_PROTOCOL);
  }

  /**
   * A link with no defined protocol in the URL uses the default (HTTPS).
   */
  public function testHttpsDefaultProtocolOnUrlWithoutDefinedProtocol() {
    $this->setupDefaultProtocol(LINK_HTTPS_PROTOCOL);

    $this->createNodeWithLink('www.example.com');

    $this->drupalGet('node/1');

    $this->assertRaw('https://www.example.com');
  }

  /**
   * A link with a defined protocol HTTPS overrides the default HTTP protocol.
   */
  public function testHttpDefaultProtocolOnUrlWithDefinedHttpsProtocol() {
    $this->setupDefaultProtocol(LINK_HTTP_PROTOCOL);

    $this->createNodeWithLink('https://www.example.com');

    $this->drupalGet('node/1');

    $this->assertRaw('https://www.example.com');
  }

  /**
   * A link with a defined protocol HTTP overrides the default HTTPS protocol.
   */
  public function testHttpsDefaultProtocolOnUrlWithDefinedHttpProtocol() {
    $this->setupDefaultProtocol(LINK_HTTPS_PROTOCOL);

    $this->createNodeWithLink('http://www.example.com');

    $this->drupalGet('node/1');

    $this->assertRaw('http://www.example.com');
  }

  /**
   * Setup the default global link protocol to either HTTP or HTTPS.
   *
   * @param string $protocol
   *   The protocol to use.
   */
  private function setupDefaultProtocol($protocol) {
    $user = $this->drupalCreateUser($this->permissions);
    $this->drupalLogin($user);

    $this->drupalPost(
      'admin/config/content/link',
      array('link_default_protocol' => $protocol),
      'Save configuration'
    );
  }

  /**
   * Create a page node with a link field.
   *
   * @param string $url
   *   The link URL.
   *
   * @return object
   *   The created node.
   */
  private function createNodeWithLink($url) {
    $link_field = $this->createLinkField('page');

    $settings = array(
      'title' => 'Basic page link test',
      $link_field => array(
        LANGUAGE_NONE => array(
          array(
            'title' => 'Field protocol link Test',
            'url' => $url,
          ),
        ),
      ),
    );

    return $this->drupalCreateNode($settings);
  }

}