<?php

/**
 * @file
 * Tests that exercise the validation functions in the link module.
 */

class LinkValidateTestCase extends LinkBaseTestClass {

  protected function createLink($url, $title, $attributes = array()) {
    return array(
      'url' => $url,
      'title' => $title,
      'attributes' => $attributes,
    );
  }

  /**
   * Takes a url, and sees if it can validate that the url is valid.
   */
  protected function link_test_validate_url($url) {

    $field_name = $this->createLinkField();

    $label = $this->randomName();
    $settings = array(
      'title' => $label,
      $field_name => array(
        LANGUAGE_NONE=> array(
          array(
            'title' => $label,
            'url' => $url,
          )
        ),
      ),
    );

    $node = $this->drupalCreateNode($settings);

    $this->assertNotNull($node, ' has been created.', 'Node created');

    $this->assertEqual($url, $node->{$field_name}[LANGUAGE_NONE][0]['url']);
  }
}

class LinkValidateTest extends LinkValidateTestCase {

  public static function getInfo() {
    return array(
      'name' => 'Link Validation Tests',
      'description' => 'Tests the field validation.',
      'group' => 'Link',
    );
  }

  function test_link_validate_basic_url() {
    $this->link_test_validate_url('http://www.example.com');
  }

  /**
   * Test if we're stopped from posting a bad url on default validation.
   */
  function test_link_validate_bad_url_validate_default() {
    $perms = user_role_permissions(array(array_search('administrator', user_roles()) => 'administrator'));
    $perms = array_keys($perms[array_search('administrator', user_roles())]);
    $admin = $this->drupalCreateUser($perms);
    $this->drupalLogin($admin);

    // create field
    $name = strtolower($this->randomName());
    $edit = array(
      'fields[_add_new_field][label]' => $name,
      'fields[_add_new_field][field_name]' => $name,
      'fields[_add_new_field][type]' => 'link_field',
      'fields[_add_new_field][widget_type]' => 'link_field',
    );
    $this->drupalPost('admin/structure/types/manage/page/fields', $edit, t('Save'));
    $this->drupalPost(NULL, array(), t('Save field settings'));
    $this->drupalPost(NULL, array(), t('Save settings'));

    // Is field created?
    $this->assertRaw(t('Saved %label configuration', array('%label' => $name)), 'Field added');
    node_types_rebuild();
    menu_rebuild();

    // create page form
    $this->drupalGet('node/add/page');
    $field_name = 'field_' . $name;
    $this->assertField('edit-field-' . $name . '-und-0-title', 'Title found');
    $this->assertField('edit-field-' . $name . '-und-0-url', 'URL found');


    $edit = array(
      'title' => 'Simple Title',
      $field_name . '[und][0][url]' => 'edik:naw',
    );

    $this->drupalPost(NULL, $edit, t('Save'));
    $this->assertText(t('The value @value provided for @field is not a valid URL.', array('@value' => 'edik:naw', '@field' => $name)));
  }

  /**
   * Test if we're stopped from posting a bad url with validation on.
   */
  function test_link_validate_bad_url_validate_on() {
    $perms = user_role_permissions(array(array_search('administrator', user_roles()) => 'administrator'));
    $perms = array_keys($perms[array_search('administrator', user_roles())]);
    $admin = $this->drupalCreateUser($perms);
    $this->drupalLogin($admin);

    // create field
    $name = strtolower($this->randomName());
    $edit = array(
      'fields[_add_new_field][label]' => $name,
      'fields[_add_new_field][field_name]' => $name,
      'fields[_add_new_field][type]' => 'link_field',
      'fields[_add_new_field][widget_type]' => 'link_field',
    );
    $this->drupalPost('admin/structure/types/manage/page/fields', $edit, t('Save'));
    $this->drupalPost(NULL, array(), t('Save field settings'));
    $this->drupalPost(NULL, array('instance[settings][validate_url]' => TRUE), t('Save settings'));

    // Is field created?
    $this->assertRaw(t('Saved %label configuration', array('%label' => $name)), 'Field added');
    node_types_rebuild();
    menu_rebuild();

    // create page form
    $this->drupalGet('node/add/page');
    $field_name = 'field_' . $name;
    $this->assertField('edit-field-' . $name . '-und-0-title', 'Title found');
    $this->assertField('edit-field-' . $name . '-und-0-url', 'URL found');


    $edit = array(
      'title' => 'Simple Title',
      $field_name . '[und][0][url]' => 'edik:naw',
    );

    $this->drupalPost(NULL, $edit, t('Save'));
    $this->assertText(t('The value @value provided for @field is not a valid URL.', array('@field' => $name, '@value' => 'edik:naw')));

  }

  /**
   * Test if we can post a bad url if the validation is expressly turned off.
   */
  function test_link_validate_bad_url_validate_off() {
    $perms = user_role_permissions(array(array_search('administrator', user_roles()) => 'administrator'));
    $perms = array_keys($perms[array_search('administrator', user_roles())]);
    $admin = $this->drupalCreateUser($perms);
    $this->drupalLogin($admin);

    // create field
    $name = strtolower($this->randomName());
    $edit = array(
      'fields[_add_new_field][label]' => $name,
      'fields[_add_new_field][field_name]' => $name,
      'fields[_add_new_field][type]' => 'link_field',
      'fields[_add_new_field][widget_type]' => 'link_field',
    );
    $this->drupalPost('admin/structure/types/manage/page/fields', $edit, t('Save'));
    $this->drupalPost(NULL, array(), t('Save field settings'));
    $this->drupalPost(NULL, array('instance[settings][validate_url]' => FALSE), t('Save settings'));

    /*$instance_details = db_query("SELECT * FROM {field_config_instance} WHERE field_name = :field_name AND bundle = 'page'", array(':field_name' => 'field_'. $name))->fetchObject();
    $this->fail('<pre>'. print_r($instance_details, TRUE) .'</pre>');
    $this->fail('<pre>'. print_r(unserialize($instance_details->data), TRUE) .'</pre>');*/

    // Is field created?
    $this->assertRaw(t('Saved %label configuration', array('%label' => $name)), 'Field added');
    node_types_rebuild();
    menu_rebuild();

    // create page form
    $this->drupalGet('node/add/page');
    $field_name = 'field_' . $name;
    $this->assertField('edit-field-' . $name . '-und-0-title', 'Title found');
    $this->assertField('edit-field-' . $name . '-und-0-url', 'URL found');


    $edit = array(
      'title' => 'Simple Title',
      $field_name . '[und][0][url]' => 'edik:naw',
    );

    $this->drupalPost(NULL, $edit, t('Save'));
    $this->assertNoText(t('The value %value provided for %field is not a valid URL.', array('%field' => $name, '%value' => 'edik:naw')));
  }

  /**
   * Test if a bad url can sneak through un-filtered if we play with the validation...
   */
  function x_test_link_validate_switching_between_validation_status() {
    $this->acquireContentTypes(1);
    $perms = user_role_permissions(array(array_search('administrator', user_roles()) => 'administrator'));
    $perms = array_keys($perms[array_search('administrator', user_roles())]);
    $admin = $this->drupalCreateUser($perms);
    $this->drupalLogin($admin);
    variable_set('node_options_' . $this->content_types[0]->name, array('status', 'promote'));
    $field_settings = array(
      'type' => 'link',
      'widget_type' => 'link',
      'type_name' => $this->content_types[0]->name,
      'attributes' => array(), // <-- This is needed or we have an error
      'validate_url' => 0,
    );

    $field = $this->createField($field_settings, 0);
    //$this->fail('<pre>'. print_r($field, TRUE) .'</pre>');
    $field_db_info = content_database_info($field);

    $this->acquireNodes(2);

    $node = node_load($this->nodes[0]->nid);

    $this->drupalGet('node/' . $this->nodes[0]->nid);

    $edit = array();
    $title = $this->randomName();
    $url = 'javascript:alert("http://example.com/' . $this->randomName() . '")';
    $edit[$field['field_name'] . '[0][url]'] = $url;
    $edit[$field['field_name'] . '[0][title]'] = $title;

    $this->drupalPost('node/' . $this->nodes[0]->nid . '/edit', $edit, t('Save'));
    //$this->pass($this->content);
    $this->assertNoText(t('The value %value provided for %field is not a valid URL.', array('%field' => $name, '%value' => trim($url))));

    // Make sure we get a new version!
    $node = node_load($this->nodes[0]->nid, NULL, TRUE);
    $this->assertEqual($url, $node->{$field['field_name']}[0]['url']);

    $this->drupalGet('node/' . $node->nid);
    $this->assertNoRaw($url, 'Make sure Javascript does not display.');

    // Turn the array validation back _on_.
    $edit = array('validate_url' => TRUE);
    $node_type_link = str_replace('_', '-', $node->type);
    //$this->drupalGet('admin/content/node-type/'. $node_type_link .'/fields'); ///'. $field['field_name']);
    //$this->fail($this->content);
    $this->drupalPost('admin/content/node-type/' . $node_type_link . '/fields/' . $field['field_name'], $edit, t('Save field settings'));

    $this->drupalGet('node/' . $node->nid);
    // This actually works because the display_url goes through the core
    // url() function.  But we should have a test that makes sure it continues
    // to work.
    $this->assertNoRaw($url, 'Make sure Javascript does not display.');
    //$this->fail($this->content);

  }

  // Validate that '<front>' is a valid url.
  function test_link_front_url() {
    $this->link_test_validate_url('<front>');
  }

  // Validate that an internal url would be accepted.
  function test_link_internal_url() {
    // Create the content first.
    $node = $this->drupalCreateNode();

    $link = 'node/' . $node->nid;
    $this->link_test_validate_url($link);
    $type = link_url_type($link);
    $this->assertEqual(LINK_INTERNAL, $type, 'Test ' . $link . ' is an internal link.');
  }

  // Validate a simple mailto.
  function test_link_mailto() {
    $this->link_test_validate_url('mailto:jcfiala@gmail.com');
  }

  function test_link_external_https() {
    $this->link_test_validate_url('https://www.example.com/');
  }

  function test_link_ftp() {
    $this->link_test_validate_url('ftp://www.example.com/');
  }
}

class LinkValidateTestNews extends LinkValidateTestCase {

  public static function getInfo() {
    return array(
      'name' => 'Link News Validation Tests',
      'description' => 'Tests the field validation for usenet urls.',
      'group' => 'Link',
    );
  }

  // Validate a news link to a message group
  function test_link_news() {
    $this->link_test_validate_url('news:comp.infosystems.www.misc');
  }

  // Validate a news link to a message id.  Said ID copied off of google groups.
  function test_link_news_message() {
    $this->link_test_validate_url('news:hj0db8$vrm$1@news.eternal-september.org');
  }
}

class LinkValidateSpecificURL extends LinkValidateTestCase {
  public static function getInfo() {
    return array(
      'name' => 'Link Specific URL Validation Tests',
      'description' => 'Tests field validation with unusual urls',
      'group' => 'Link',
    );
  }

  // Lets throw in a lot of umlouts for testing!
  function test_umlout_url() {
    $this->link_test_validate_url('http://üÜü.exämple.com/nöde');
  }

  function test_umlout_mailto() {
    $this->link_test_validate_url('mailto:Üser@exÅmple.com');
  }

  function test_german_b_url() {
    $this->link_test_validate_url('http://www.test.com/ßstuff');
  }

  function test_special_n_url() {
    $this->link_test_validate_url('http://www.testÑñ.com/');
  }

  function test_curly_brackets_in_query() {
    $this->link_test_validate_url('http://www.healthyteennetwork.org/index.asp?Type=B_PR&SEC={2AE1D600-4FC6-4B4D-8822-F1D5F072ED7B}&DE={235FD1E7-208D-4363-9854-4E6775EB8A4C}');
  }

  /**
   * Here, we're testing that a very long url is stored properly in the db.
   *
   * Basically, trying to test http://drupal.org/node/376818
   */
  function testLinkURLFieldIsBig() {
    $long_url = 'http://th.wikipedia.org/wiki/%E0%B9%82%E0%B8%A3%E0%B8%87%E0%B9%80%E0%B8%A3%E0%B8%B5%E0%B8%A2%E0%B8%99%E0%B9%80%E0%B8%9A%E0%B8%8D%E0%B8%88%E0%B8%A1%E0%B8%A3%E0%B8%B2%E0%B8%8A%E0%B8%B9%E0%B8%97%E0%B8%B4%E0%B8%A8_%E0%B8%99%E0%B8%84%E0%B8%A3%E0%B8%A8%E0%B8%A3%E0%B8%B5%E0%B8%98%E0%B8%A3%E0%B8%A3%E0%B8%A1%E0%B8%A3%E0%B8%B2%E0%B8%8A';
    $this->link_test_validate_url($long_url);
  }

}

/**
 * A series of tests of links, only going against the link_validate_url function in link.module.
 *
 * Validation is guided by the rules in http://tools.ietf.org/html/rfc1738 !
 */
class LinkValidateUrlLight extends DrupalWebTestCase {

  public static function getInfo() {
    return array(
      'name' => 'Link Light Validation Tests',
      'description' => 'Tests the link_validate_url() function by itself, without invoking the full drupal/cck lifecycle.',
      'group' => 'Link',
    );
  }

  function setUp() {
    parent::setUp('link');
  }

  /**
   * Translates the LINK type constants to english for display and debugging of tests
   */
  function name_Link_Type($type) {
    switch ($type) {
      case LINK_FRONT:
        return "Front";
      case LINK_EMAIL:
        return "Email";
      case LINK_NEWS:
        return "Newsgroup";
      case LINK_INTERNAL:
        return "Internal Link";
      case LINK_EXTERNAL:
        return "External Link";
      case FALSE:
        return "Invalid Link";
      default:
        return "Bad Value:" . $type;
    }
  }

  // Make sure that a link labeled <front> works.
  function testValidateFrontLink() {
    $valid = link_validate_url('<front>');
    $this->assertEqual(LINK_FRONT, $valid, 'Make sure that front link is verified and identified');
  }

  function testValidateEmailLink() {
    $valid = link_validate_url('mailto:bob@example.com');
    $this->assertEqual(LINK_EMAIL, $valid, "Make sure a basic mailto is verified and identified");
  }

  function testValidateEmailLinkBad() {
    $valid = link_validate_url(':bob@example.com');
    $this->assertEqual(FALSE, $valid, 'Make sure just a bad address is correctly failed');
  }

  function testValidateNewsgroupLink() {
    $valid = link_validate_url('news:comp.infosystems.www.misc');
    $this->assertEqual(LINK_NEWS, $valid, 'Make sure link to newsgroup validates as news.');
  }

  function testValidateNewsArticleLink() {
    $valid = link_validate_url('news:hj0db8$vrm$1@news.eternal-september.org');
    $this->assertEqual(LINK_NEWS, $valid, 'Make sure link to specific article validates as news.');
  }

  function testValidateBadNewsgroupLink() {
    $valid = link_validate_url('news:comp.bad_name.misc');
    $this->assertEqual(FALSE, $valid, 'newsgroup names can\'t contain underscores, so it should come back as invalid.');
  }

  function testValidateInternalLinks() {
    $tempfile = drupal_tempnam('public://files', 'test');
    $links = array(
      file_uri_target($tempfile),
      drupal_realpath($tempfile),
    );

    foreach ($links as $link) {
      $type = link_url_type($link);
      $this->assertEqual(LINK_INTERNAL, $type, 'Test ' . $link . ' is an internal link.');
      $valid = link_validate_url($link);
      $this->assertTrue($valid, 'Test ' . $link . ' is valid internal link.');
    }
  }

  function testValidateExternalLinks() {
    $links = array(
      'http://localhost:8080/',
      'www.example.com',
      'www.example.com/',
      'http://username:p%40ssw0rd!@www.example.com/',
      'http://@www.example.com/',
      'http://username:@www.example.com/',
      'http://username:password@www.example.com:8080/',
      'http://127.0.0.1:80/',
      'http://127.173.24.255:4723/',
      '127.173.24.255:4723/',
      'http://255.255.255.255:4823/',
      'www.test-site.com',
      'http://example.com/index.php?q=node/123',
      'http://example.com/?first_name=Joe Bob&last_name=Smith',
      // Anchors
      'http://www.example.com/index.php#test',
      'http://www.example.com/index.php#this@that.',
      'http://www.example.com/index.php#',
      'http://www.cnn.com/video/#/video/politics/2008/12/09/intv.madeleine.albright.cnn',
      'http://www.archive.org/stream/aesopsfables00aesorich#page/n7/mode/2up',
      'http://www.example.com/blah/#this@that?',
    );
    // Test all of the protocols.
    $allowed_protocols = variable_get('filter_allowed_protocols', array('http', 'https', 'ftp', 'news', 'nntp', 'telnet', 'mailto', 'irc', 'ssh', 'sftp', 'webcal'));
    foreach ($allowed_protocols as $protocol) {
      if ($protocol !== 'news' && $protocol !== 'mailto') {
        $links[] = $protocol . '://www.example.com';
      }
    }
    foreach ($links as $link) {
      $type = link_url_type($link);
      $this->assertEqual(LINK_EXTERNAL, $type, 'Testing that ' . $link . ' is an external link.');
      $valid = link_validate_url($link);
      $this->assertTrue($valid, 'Test ' . $link . ' is valid external link.');
      // The following two lines are commented out and only used for comparisons.
      //$valid2 = valid_url($link, TRUE);
      //$this->assertEqual(TRUE, $valid2, "Using valid_url() on $link.");
    }
    // Test if we can make a tld allowable:
    variable_set('link_allowed_domains', array('frog'));
    $valid = link_validate_url('http://www.example.frog');
    $this->assertEqual(LINK_EXTERNAL, $valid, "Testing that http://www.example.frog is a valid external link if we've added 'frog' to the list of valid domains.");
  }

  function testInvalidExternalLinks() {
    $links = array(
      'http://www.ex ample.com/',
      'http://25.0.0/', // bad ip!
      'http://4827.0.0.2/',
      '//www.example.com/',
      'http://www.testß.com/', // ß not allowed in domain names!
      //'http://www.-fudge.com/', // domains can't have sections starting with a dash.
      'http://example.com/index.php?page=this\that',
      'example@example.com',
    );
    foreach ($links as $link) {
      $valid = link_validate_url($link);
      $this->assertEqual(FALSE, $valid, 'Testing that ' . $link . ' is not a valid link.');
    }
    // Test if we can make a tld disallowed:
    variable_set('link_allowed_domains', array('toad'));
    $valid = link_validate_url('http://www.example.frog');
    $this->assertEqual(FALSE, $valid, "Testing that http://www.example.frog is an invalid external link if we've not added 'frog' to the list of valid domains.");
  }
}