/**
  * @covers test_wpseo_is_nginx()
  */
 public function test_wpseo_is_nginx()
 {
     $_SERVER['SERVER_SOFTWARE'] = 'nginx/1.5.11';
     $this->assertTrue(WPSEO_Utils::is_nginx());
     $_SERVER['SERVER_SOFTWARE'] = 'Apache/2.2.22';
     $this->assertFalse(WPSEO_Utils::is_nginx());
 }
/**
 * Check if the web service is running on Nginx
 *
 * @deprecated 1.6.1
 * @deprecated use WPSEO_Utils::is_nginx()
 * @see WPSEO_Utils::is_nginx()
 *
 * @return bool
 */
function wpseo_is_nginx()
{
    _deprecated_function(__FUNCTION__, 'WPSEO 1.6.1', 'WPSEO_Utils::is_nginx()');
    return WPSEO_Utils::is_nginx();
}
 * @todo - [JRF => whomever] check for existance of .xls rewrite rule in .htaccess from
 * google-sitemaps-plugin/generator and remove as it will cause errors for our sitemaps
 * (or inform the user and disallow enabling of sitemaps )
 * @todo - [JRF => whomever] check if anything along these lines is already being done
 */
if (!defined('WPSEO_VERSION')) {
    header('Status: 403 Forbidden');
    header('HTTP/1.1 403 Forbidden');
    exit;
}
global $wpseo_admin_pages;
$wpseo_admin_pages->admin_header(true, WPSEO_Options::get_group_name('wpseo_xml'), 'wpseo_xml');
$options = get_option('wpseo_xml');
$content = $wpseo_admin_pages->checkbox('enablexmlsitemap', __('Check this box to enable XML sitemap functionality.', 'wordpress-seo'), false);
$content .= '<div id="sitemapinfo">';
if (WPSEO_Utils::is_nginx()) {
    $content .= '<div style="margin: 5px 0; padding: 3px 10px; background-color: #ffffe0; border: 1px solid #E6DB55; border-radius: 3px;">';
    $content .= '<p>' . __('As you\'re on NGINX, you\'ll need the following rewrites:', 'wordpress-seo') . '</p>';
    $content .= '<pre>rewrite ^/sitemap_index\\.xml$ /index.php?sitemap=1 last;
rewrite ^/([^/]+?)-sitemap([0-9]+)?\\.xml$ /index.php?sitemap=$1&sitemap_n=$2 last;</pre>';
    $content .= '</div>';
}
if ($options['enablexmlsitemap'] === true) {
    $content .= '<p>' . sprintf(esc_html__('You can find your XML Sitemap here: %sXML Sitemap%s', 'wordpress-seo'), '<a target="_blank" class="button-secondary" href="' . esc_url(wpseo_xml_sitemaps_base_url('sitemap_index.xml')) . '">', '</a>') . '<br/><br/>' . __('You do <strong>not</strong> need to generate the XML sitemap, nor will it take up time to generate after publishing a post.', 'wordpress-seo') . '</p>';
} else {
    $content .= '<p>' . __('Save your settings to activate XML Sitemaps.', 'wordpress-seo') . '</p>';
}
// When we write the help tab for this we should definitely reference this plugin :https://wordpress.org/plugins/edit-author-slug/
$content .= '<h2>' . __('User sitemap', 'wordpress-seo') . '</h2>';
$content .= $wpseo_admin_pages->checkbox('disable_author_sitemap', __('Disable author/user sitemap', 'wordpress-seo'), false);
$content .= '<div id="xml_user_block">';
    /**
     * Function that outputs the redirect page
     */
    public static function display()
    {
        // Check if there's an old URL set.
        $old_url = '';
        if (($old_url = filter_input(INPUT_GET, 'old_url')) != '') {
            $old_url = urldecode($old_url);
        }
        // Get the redirect types.
        $redirect_types = WPSEO_Redirect_Manager::get_redirect_types();
        // Admin header.
        Yoast_Form::get_instance()->admin_header(false, 'wpseo_redirects', false, 'yoast_wpseo_redirects_options');
        ?>
		<h2 class="nav-tab-wrapper" id="wpseo-tabs">
			<a class="nav-tab" id="tab-url-tab"
			   href="#top#tab-url"><?php 
        _e('Redirects', 'wordpress-seo-premium');
        ?>
</a>
			<a class="nav-tab" id="tab-regex-tab"
			   href="#top#tab-regex"><?php 
        _e('Regex Redirects', 'wordpress-seo-premium');
        ?>
</a>
			<a class="nav-tab" id="settings-tab"
			   href="#top#settings"><?php 
        _e('Settings', 'wordpress-seo-premium');
        ?>
</a>
		</h2>

		<div class="tabwrapper>">
			<div id="tab-url" class="wpseotab redirect-table-tab">
				<?php 
        // Add new redirect HTML.
        echo "<form class='wpseo-new-redirect-form' method='post'>\n";
        echo "<div class='wpseo_redirects_new'>\n";
        // Echo "<h2>" . __( 'Add New Redirect', 'wordpress-seo' ) . "</h2>\n";.
        echo "<label class='textinput' for='wpseo_redirects_new_old'>" . __('Old URL', 'wordpress-seo-premium') . "</label>\n";
        echo "<input type='text' class='textinput' name='wpseo_redirects_new_old' id='wpseo_redirects_new_old' value='", esc_url($old_url) . "' />\n";
        echo "<br class='clear'/>\n";
        echo "<label class='textinput' for='wpseo_redirects_new_new'>" . __('New URL', 'wordpress-seo-premium') . "</label>\n";
        echo "<input type='text' class='textinput' name='wpseo_redirects_new_new' id='wpseo_redirects_new_new' value='' />\n";
        echo "<br class='clear'/>\n";
        echo "<label class='textinput' for='wpseo_redirects_new_type'>" . _x('Type', 'noun', 'wordpress-seo-premium') . "</label>\n";
        // Redirect type select element.
        echo "<select name='wpseo_redirects_new_type' id='wpseo_redirects_new_type' class='select'>" . PHP_EOL;
        // Loop through the redirect types.
        if (count($redirect_types) > 0) {
            foreach ($redirect_types as $type => $desc) {
                echo "<option value='" . $type . "'>" . $desc . '</option>' . PHP_EOL;
            }
        }
        echo '</select>' . PHP_EOL;
        echo '<br />';
        echo '<br />';
        echo '<p class="label desc description">' . sprintf(__('The redirect type is the HTTP response code sent to the browser telling the browser what type of redirect is served.<br/><br/>Read <a href=\'%s\' target=\'_blank\'>this page</a> for more info.', 'wordpress-seo-premium'), 'http://kb.yoast.com/article/121-redirect-types/#utm_source=wordpress-seo-premium-redirects&amp;utm_medium=inline-help&amp;utm_campaign=redirect-types') . '</p>';
        echo "<br class='clear'/>\n";
        echo "<a href='javascript:;' class='button-primary'>" . __('Add Redirect', 'wordpress-seo-premium') . "</a>\n";
        echo "</div>\n";
        echo "</form>\n";
        echo "<p class='desc'>&nbsp;</p>\n";
        // Open <form>.
        echo "<form id='url' class='wpseo-redirects-table-form' method='post' action=''>\n";
        // AJAX nonce.
        echo "<input type='hidden' class='wpseo_redirects_ajax_nonce' value='" . wp_create_nonce('wpseo-redirects-ajax-security') . "' />\n";
        // The list table.
        $list_table = new WPSEO_Redirect_Table('URL');
        $list_table->prepare_items();
        $list_table->search_box(__('Search', 'wordpress-seo-premium'), 'wpseo-redirect-search');
        $list_table->display();
        // Close <form>.
        echo "</form>\n";
        ?>
			</div>
			<div id="tab-regex" class="wpseotab redirect-table-tab">
				<?php 
        // Add new redirect HTML.
        /* translators: %1$s contains a line break tag. %2$s links to our knowledge base, %3$s closes the link. */
        echo '<p>' . sprintf(__('Regex Redirects are extremely powerful redirects. You should only use them if you know what you are doing.%1$sIf you don\'t know what Regular Expressions (regex) are, please refer to %2$sour knowledge base%3$s.', 'wordpress-seo-premium'), '<br />', '<a href="http://kb.yoast.com/article/142-what-are-regex-redirects" target="_blank">', '</a>') . "</p>\n";
        echo "<form class='wpseo-new-redirect-form' method='post'>\n";
        echo "<div class='wpseo_redirects_new'>\n";
        // Echo "<h2>" . __( 'Add New Regex Redirect', 'wordpress-seo' ) . "</h2>\n";.
        echo "<label class='textinput' for='wpseo_redirects_new_old'>" . __('Regular Expression', 'wordpress-seo-premium') . "</label>\n";
        echo "<input type='text' class='textinput' name='wpseo_redirects_new_old' id='wpseo_redirects_new_old' value='{$old_url}' />\n";
        echo "<br class='clear'/>\n";
        echo "<label class='textinput' for='wpseo_redirects_new_new'>" . __('URL', 'wordpress-seo-premium') . "</label>\n";
        echo "<input type='text' class='textinput' name='wpseo_redirects_new_new' id='wpseo_redirects_new_new' value='' />\n";
        echo "<br class='clear'/>\n";
        echo "<label class='textinput' for='wpseo_redirects_new_type'>" . _x('Type', 'noun', 'wordpress-seo-premium') . "</label>\n";
        // Redirect type select element.
        echo "<select name='wpseo_redirects_new_type' id='wpseo_redirects_new_type' class='select'>" . PHP_EOL;
        // Loop through the redirect types.
        if (count($redirect_types) > 0) {
            foreach ($redirect_types as $key => $desc) {
                echo "<option value='" . $key . "'>" . $desc . '</option>' . PHP_EOL;
            }
        }
        echo '</select>' . PHP_EOL;
        echo '<br />';
        echo '<br />';
        echo '<p class="label desc description">' . sprintf(__('The redirect type is the HTTP response code sent to the browser telling the browser what type of redirect is served.<br/><br/>Read <a href=\'%s\' target=\'_blank\'>this page</a> for more info.', 'wordpress-seo-premium'), 'http://kb.yoast.com/article/121-redirect-types/#utm_source=wordpress-seo-premium-redirects&amp;utm_medium=inline-help&amp;utm_campaign=redirect-types') . ' </p>';
        echo "<br class='clear'/>\n";
        echo "<a href='javascript:;' class='button-primary'>" . __('Add Redirect', 'wordpress-seo-premium') . "</a>\n";
        echo "</div>\n";
        echo "</form>\n";
        echo "<p class='desc'>&nbsp;</p>\n";
        // Open <form>.
        echo "<form id='regex' class='wpseo-redirects-table-form' method='post' action=''>\n";
        // AJAX nonce.
        echo "<input type='hidden' class='wpseo_redirects_ajax_nonce' value='" . wp_create_nonce('wpseo-redirects-ajax-security') . "' />\n";
        // The list table.
        $list_table = new WPSEO_Redirect_Table('REGEX');
        $list_table->prepare_items();
        $list_table->search_box(__('Search', 'wordpress-seo-premium'), 'wpseo-redirect-search');
        $list_table->display();
        // Close <form>.
        echo "</form>\n";
        ?>
			</div>
			<div id="settings" class="wpseotab">
				<?php 
        // Get redirect options.
        $redirect_options = WPSEO_Redirect_Manager::get_options();
        // Do file checks.
        if ('on' == $redirect_options['disable_php_redirect']) {
            $file_write_error = false;
            if (WPSEO_Utils::is_apache()) {
                if ('on' == $redirect_options['separate_file']) {
                    if (file_exists(WPSEO_Redirect_File_Manager::get_file_path())) {
                        echo '<div style="margin: 5px 0; padding: 3px 10px; background-color: #ffffe0; border: 1px solid #E6DB55; border-radius: 3px">';
                        echo '<p>' . __("As you're on Apache, you should add the following include to the website httpd config file:", 'wordpress-seo-premium') . '</p>';
                        echo '<pre>Include ' . WPSEO_Redirect_File_Manager::get_file_path() . '</pre>';
                        echo '</div>';
                    } else {
                        $file_write_error = true;
                    }
                } else {
                    if (!is_writable(WPSEO_Redirect_File_Manager::get_htaccess_file_path())) {
                        /* translators: %s: '.htaccess' file name */
                        echo "<div class='error'><p><b>" . sprintf(__('We\'re unable to save the redirects to your %s file. Please make the file writable.', 'wordpress-seo-premium'), '<code>.htaccess</code>') . "</b></p></div>\n";
                    }
                }
            } else {
                if (WPSEO_Utils::is_nginx()) {
                    if (file_exists(WPSEO_Redirect_File_Manager::get_file_path())) {
                        echo '<div style="margin: 5px 0; padding: 3px 10px; background-color: #ffffe0; border: 1px solid #E6DB55; border-radius: 3px">';
                        echo '<p>' . __('As you\'re on Nginx, you should add the following include to the NGINX config file:', 'wordpress-seo-premium') . '</p>';
                        echo '<pre>include ' . WPSEO_Redirect_File_Manager::get_file_path() . ';</pre>';
                        echo '</div>';
                    } else {
                        $file_write_error = true;
                    }
                }
            }
            if ($file_write_error) {
                echo "<div class='error'><p><b>" . __(sprintf("We're unable to save the redirect file to %s", WPSEO_Redirect_File_Manager::get_file_path()), 'wordpress-seo-premium') . "</b></p></div>\n";
            }
        }
        ?>
				<h2>Redirect Settings</h2>

				<form action="<?php 
        echo admin_url('options.php');
        ?>
" method="post">
					<?php 
        settings_fields('yoast_wpseo_redirect_options');
        Yoast_Form::get_instance()->set_option('wpseo_redirect');
        if (WPSEO_Utils::is_apache()) {
            echo Yoast_Form::get_instance()->checkbox('disable_php_redirect', __('Disable PHP redirects', 'wordpress-seo-premium'));
            /* translators: 1: '.htaccess' file name */
            echo '<p class="desc">' . sprintf(__('Write redirects to the %1$s file. Make sure the %1$s file is writable.', 'wordpress-seo-premium'), '<code>.htacces</code>') . '</p>';
            echo Yoast_Form::get_instance()->checkbox('separate_file', __('Generate a separate redirect file', 'wordpress-seo-premium'));
            /* translators: %s: '.htaccess' file name */
            echo '<p class="desc">' . sprintf(__('By default we write the redirects to your %s file, check this if you want the redirects written to a separate file. Only check this option if you know what you are doing!', 'wordpress-seo-premium'), '<code>.htaccess</code>') . '</p>';
        } else {
            echo Yoast_Form::get_instance()->checkbox('disable_php_redirect', __('Disable PHP redirects', 'wordpress-seo-premium'));
            /* translators: %s: 'Yoast SEO Premium' */
            echo '<p class="desc">' . sprintf(__('%s will generate redirect files that can be included in your website configuration. You can disable PHP redirect if this is done correctly. Only check this option if you know what you are doing!', 'wordpress-seo-premium'), 'Yoast SEO Premium') . '</p>';
        }
        ?>
					<p class="submit">
						<input type="submit" name="submit" id="submit" class="button button-primary"
						       value="<?php 
        _e('Save Changes', 'wordpress-seo-premium');
        ?>
">
					</p>
				</form>
			</div>
		</div>
		<br class="clear">
		<?php 
        // Admin footer.
        Yoast_Form::get_instance()->admin_footer(false);
    }
 /**
  * Create the redirect file
  */
 public function save_redirect_file()
 {
     // Options.
     $options = self::get_options();
     if ('on' == $options['disable_php_redirect']) {
         // Create the correct file object.
         $file = null;
         if (WPSEO_Utils::is_apache()) {
             if ('on' == $options['separate_file']) {
                 $file = new WPSEO_Apache_Redirect_File();
             } else {
                 $file = new WPSEO_Htaccess_Redirect_File();
             }
         } elseif (WPSEO_Utils::is_nginx()) {
             $file = new WPSEO_Nginx_Redirect_File();
         }
         // Save the file.
         if (null !== $file) {
             $file->save_file();
         }
     }
 }
/**
 * Adds tracking parameters for WP SEO settings. Outside of the main class as the class could also be in use in other plugins.
 *
 * @param array $options
 *
 * @return array
 */
function wpseo_tracking_additions($options)
{
    if (function_exists('curl_version')) {
        $curl = curl_version();
    } else {
        $curl = null;
    }
    $opt = WPSEO_Options::get_all();
    $options['wpseo'] = array('xml_sitemaps' => $opt['enablexmlsitemap'] === true ? 1 : 0, 'force_rewrite' => $opt['forcerewritetitle'] === true ? 1 : 0, 'opengraph' => $opt['opengraph'] === true ? 1 : 0, 'twitter' => $opt['twitter'] === true ? 1 : 0, 'strip_category_base' => $opt['stripcategorybase'] === true ? 1 : 0, 'on_front' => get_option('show_on_front'), 'wmt_alexa' => !empty($opt['alexaverify']) ? 1 : 0, 'wmt_bing' => !empty($opt['msverify']) ? 1 : 0, 'wmt_google' => !empty($opt['googleverify']) ? 1 : 0, 'wmt_pinterest' => !empty($opt['pinterestverify']) ? 1 : 0, 'wmt_yandex' => !empty($opt['yandexverify']) ? 1 : 0, 'permalinks_clean' => $opt['cleanpermalinks'] == 1 ? 1 : 0, 'site_db_charset' => DB_CHARSET, 'webserver_apache' => WPSEO_Utils::is_apache() ? 1 : 0, 'webserver_apache_version' => function_exists('apache_get_version') ? apache_get_version() : 0, 'webserver_nginx' => WPSEO_Utils::is_nginx() ? 1 : 0, 'webserver_server_software' => $_SERVER['SERVER_SOFTWARE'], 'webserver_gateway_interface' => $_SERVER['GATEWAY_INTERFACE'], 'webserver_server_protocol' => $_SERVER['SERVER_PROTOCOL'], 'php_version' => phpversion(), 'php_max_execution_time' => ini_get('max_execution_time'), 'php_memory_limit' => ini_get('memory_limit'), 'php_open_basedir' => ini_get('open_basedir'), 'php_bcmath_enabled' => extension_loaded('bcmath') ? 1 : 0, 'php_ctype_enabled' => extension_loaded('ctype') ? 1 : 0, 'php_curl_enabled' => extension_loaded('curl') ? 1 : 0, 'php_curl_version_a' => phpversion('curl'), 'php_curl' => !is_null($curl) ? $curl['version'] : 0, 'php_dom_enabled' => extension_loaded('dom') ? 1 : 0, 'php_dom_version' => phpversion('dom'), 'php_filter_enabled' => extension_loaded('filter') ? 1 : 0, 'php_mbstring_enabled' => extension_loaded('mbstring') ? 1 : 0, 'php_mbstring_version' => phpversion('mbstring'), 'php_pcre_enabled' => extension_loaded('pcre') ? 1 : 0, 'php_pcre_version' => phpversion('pcre'), 'php_pcre_with_utf8_a' => @preg_match('/^.{1}$/u', 'ñ', $UTF8_ar), 'php_pcre_with_utf8_b' => defined('PREG_BAD_UTF8_ERROR'), 'php_spl_enabled' => extension_loaded('spl') ? 1 : 0);
    return $options;
}