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PHP

<?php
/**
* The SEO Analyzer class runs the tests and handles the results.
*
* @since 0.9.0
* @package RankMath
* @subpackage RankMath\SEO_Analysis
* @author Rank Math <support@rankmath.com>
*/
namespace RankMath\SEO_Analysis;
use RankMath\Traits\Ajax;
use RankMath\Traits\Hooker;
use RankMath\Helpers\Security;
use RankMath\Helpers\Param;
use RankMath\Helper;
defined( 'ABSPATH' ) || exit;
/**
* SEO_Analyzer class.
*/
class SEO_Analyzer {
use Ajax, Hooker;
/**
* Rank Math SEO Checkup API.
*
* @var string
*/
private $api_url = '';
/**
* URL to analyze.
*
* @var string
*/
public $analyse_url = '';
/**
* Sub-page URL to analyze.
*
* @var string
*/
public $analyse_subpage = false;
/**
* Hold analysis results.
*
* @var null|array
*/
public $results = null;
/**
* Hold analysis result date.
*
* @var mixed
*/
public $results_date = null;
/**
* Hold any api error.
*
* @var array
*/
private $api_error = '';
/**
* Hold local test data.
*
* @var array
*/
private $local_tests = [];
/**
* The constructor.
*/
public function __construct() {
$this->analyse_url = home_url();
$this->action( 'init', 'set_url' );
$this->maybe_clear_storage();
$this->ajax( 'analyze', 'analyze_me' );
$this->ajax( 'enable_auto_update', 'enable_auto_update' );
}
/**
* Set URL and other properties on init.
*
* @return void
*/
public function set_url() {
update_option( 'rank_math_viewed_seo_analyer', true, false ); // Code to update the viewed value to remove the New label.
$this->api_url = $this->do_filter( 'seo_analysis/api_endpoint', 'https://rankmath.com/analyze/v2/json/' );
if ( ! empty( $_REQUEST['u'] ) && $this->is_allowed_url( Param::request( 'u' ) ) ) { // phpcs:ignore
$this->analyse_url = esc_url_raw( Param::request( 'u' ) );
$this->analyse_subpage = true;
}
/**
* Action: 'rank_math/seo_analysis/after_set_url' - Fires after setting the URL.
*/
$this->do_action( 'seo_analysis/after_set_url', $this );
if ( $this->analyse_subpage ) {
return;
}
$this->get_results_from_storage();
$this->local_tests = $this->do_filter( 'seo_analysis/tests', [] );
}
/**
* Output results.
*/
public function display() {
if ( empty( $this->results ) ) {
return;
}
?>
<?php $this->display_graphs(); ?>
<?php $this->display_result_filters(); ?>
<div class="rank-math-result-tables rank-math-box">
<?php $this->display_results(); ?>
</div>
<?php
}
/**
* Show buttons to filter results: All, Passed Tests, Warnings, Failed Tests.
* Also show the number of tests in each category.
*/
private function display_result_filters() {
$data = $this->get_graph_metrices();
extract( $data ); // phpcs:ignore
?>
<div id="analysis-result" class="rank-math-result-filters">
<a href="#all" class="rank-math-result-filter rank-math-result-filter-all active" data-filter="all" data-count="<?php echo esc_attr( $total ); ?>">
<?php esc_html_e( 'All', 'rank-math' ); ?>
<span class="rank-math-result-filter-count"><?php echo esc_html( $total ); ?></span>
</a>
<a href="#passed" class="rank-math-result-filter rank-math-result-filter-passed" data-filter="ok" data-count="<?php echo esc_attr( $statuses['ok'] ); ?>">
<?php esc_html_e( 'Passed Tests', 'rank-math' ); ?>
<span class="rank-math-result-filter-count"><?php echo esc_html( $statuses['ok'] ); ?></span>
</a>
<a href="#warning" class="rank-math-result-filter rank-math-result-filter-warnings" data-filter="warning" data-count="<?php echo esc_attr( $statuses['warning'] ); ?>">
<?php esc_html_e( 'Warnings', 'rank-math' ); ?>
<span class="rank-math-result-filter-count"><?php echo esc_html( $statuses['warning'] ); ?></span>
</a>
<a href="#failed" class="rank-math-result-filter rank-math-result-filter-failed" data-filter="fail" data-count="<?php echo esc_attr( $statuses['fail'] ); ?>">
<?php esc_html_e( 'Failed Tests', 'rank-math' ); ?>
<span class="rank-math-result-filter-count"><?php echo esc_html( $statuses['fail'] ); ?></span>
</a>
</div>
<?php
}
/**
* Output graphs.
*/
private function display_graphs() {
$data = $this->get_graph_metrices();
extract( $data ); // phpcs:ignore
include dirname( __FILE__ ) . '/views/graphs.php';
}
/**
* Output the SERP Preview.
*/
public function display_serp_preview() {
include dirname( __FILE__ ) . '/views/serp-preview.php';
}
/**
* Get graph metrices.
*
* @return array
*/
private function get_graph_metrices() {
$total = 0;
$percent = 0;
$total_score = 0;
$statuses = [
'ok' => 0,
'fail' => 0,
'info' => 0,
'warning' => 0,
];
foreach ( $this->results as $id => $result ) {
if ( false === $this->can_count_result( $result ) ) {
continue;
}
if ( $result->is_hidden() ) {
continue;
}
$statuses[ $result->get_status() ]++;
$total++;
$total_score = $total_score + $result->get_score();
if ( 'ok' !== $result->get_status() ) {
continue;
}
$percent = $percent + $result->get_score();
}
$percent = round( ( $percent / $total_score ) * 100 );
$grade = $this->get_graph_grade( $percent );
return compact( 'total', 'percent', 'statuses', 'grade' );
}
/**
* Can count result.
*
* @param Result $result Result instance.
*
* @return bool
*/
private function can_count_result( $result ) {
return ( ! is_object( $result ) || 'info' === $result->get_status() || $result->is_excluded() ) ? false : true;
}
/**
* Format grade result.
*
* @param int $percent Total percentage.
*
* @return string
*/
private function get_graph_grade( $percent ) {
if ( $percent < 70 ) {
return 'average';
}
if ( $percent < 50 ) {
return 'bad';
}
return 'good';
}
/**
* Output results in tables.
*/
private function display_results() {
foreach ( $this->sort_results_by_category() as $category => $results ) :
$label = $this->get_category_label( $category );
?>
<div class="rank-math-result-table rank-math-result-category-<?php echo esc_attr( $category ); ?> <?php echo esc_attr( $this->get_status_class( $results ) ); ?>">
<div class="category-title">
<?php echo $label; // phpcs:ignore ?>
</div>
<?php foreach ( $results as $result ) : ?>
<div class="table-row rank-math-result-status-<?php echo esc_attr( $result->get_status() ); ?>" data-status="<?php echo esc_attr( $result->get_status() ); ?>">
<?php echo $result; // phpcs:ignore ?>
</div>
<?php endforeach; ?>
</div>
<?php
endforeach;
}
/**
* Get class for the result category wrapper element.
* This is needed for the filter buttons.
*
* @param array $results Results array.
*
* @return string
*/
private function get_status_class( $results ) {
$status_classes = [];
foreach ( $results as $result ) {
if ( false === $this->can_count_result( $result ) ) {
continue;
}
if ( $result->is_hidden() ) {
continue;
}
$status_classes[] = $result->get_status();
}
$status_class = implode(
' ',
array_map(
function( $status ) {
return 'rank-math-result-statuses-' . $status;
},
array_unique( $status_classes )
)
);
return $status_class;
}
/**
* Get result from storage.
*
* @param string $option Option name.
*/
public function get_results_from_storage( $option = 'rank_math_seo_analysis' ) {
if ( ! is_null( $this->results ) ) {
return;
}
$this->results = get_option( $option . '_results' );
$this->results_date = get_option( $option . '_date' );
$url = get_option( $option . '_url' );
if ( false !== $url ) {
$this->analyse_url = $url;
}
$this->build_results();
}
/**
* Return formatted date.
*/
public function get_last_checked_date() {
if ( ! $this->results_date ) {
return;
}
$date = date_i18n( get_option( 'date_format' ), $this->results_date );
$time = date_i18n( get_option( 'time_format' ), $this->results_date );
// translators: 1: Date, 2: Time.
return '<span>' . esc_attr__( 'Last checked:', 'rank-math' ) . '</span> ' . sprintf( esc_html__( '%1$s at %2$s', 'rank-math' ), $date, $time );
}
/**
* Clear stored results if needed.
*/
private function maybe_clear_storage() {
if ( '1' === Param::request( 'clear_results' ) ) {
delete_option( 'rank_math_seo_analysis_results' );
delete_option( 'rank_math_seo_analysis_date' );
Helper::redirect( Security::remove_query_arg_raw( 'clear_results' ) );
exit;
}
}
/**
* Convert result into object.
*/
private function build_results() {
if ( ! is_array( $this->results ) ) {
return;
}
$this->move_priority_results_to_top();
foreach ( $this->results as $id => $result ) {
$this->results[ $id ] = new Result( $id, $result, $this->analyse_subpage );
}
}
/**
* Move all tests in "priority" category to top.
*/
private function move_priority_results_to_top() {
$priority = [];
foreach ( $this->results as $id => $result ) {
if ( is_array( $result ) && 'priority' === $result['category'] ) {
$priority[ $id ] = $result;
unset( $this->results[ $id ] );
}
}
$this->results = array_replace( $priority, $this->results );
}
/**
* Analyze page.
*/
public function analyze_me() {
$success = true;
$directory = dirname( __FILE__ );
check_ajax_referer( 'rank-math-ajax-nonce', 'security' );
$this->has_cap_ajax( 'site_analysis' );
if ( ! $this->analyse_subpage ) {
delete_option( 'rank_math_seo_analysis_results' );
delete_option( 'rank_math_seo_analysis_date' );
}
if ( ! $this->run_api_tests() ) {
/* translators: API error */
echo '<div class="notice notice-error is-dismissible notice-seo-analysis-error rank-math-notice"><p>' . sprintf( __( '<strong>API Error:</strong> %s', 'rank-math' ), $this->api_error ) . '</p></div>'; // phpcs:ignore
$success = false;
die;
}
if ( ! $this->analyse_subpage ) {
$this->run_local_tests();
update_option( 'rank_math_seo_analysis_results', $this->results, false );
update_option( 'rank_math_seo_analysis_date', time(), false );
}
/**
* Action: 'rank_math/seo_analysis/after_analyze' - Fires after the SEO analysis is done.
*/
$this->do_action( 'seo_analysis/after_analyze', $this );
$this->build_results();
$this->display();
die;
}
/**
* Get page score.
*
* @param string $url Url to get score for.
*
* @return int
*/
public function get_page_score( $url ) {
$this->analyse_url = $url;
$this->analyse_subpage = true;
if ( ! $this->run_api_tests() ) {
error_log( __( 'Rank Math SEO Analyzer error: ', 'rank-math' ) . $this->api_error ); // phpcs:ignore
return 0;
}
$this->build_results();
if ( empty( $this->results ) ) {
return 0;
}
$total = 0;
foreach ( $this->results as $id => $result ) {
if (
$result->is_hidden() ||
'ok' !== $result->get_status() ||
false === $this->can_count_result( $result )
) {
continue;
}
$total = $total + $result->get_score();
}
return $total;
}
/**
* Ajax handler for the Enable auto update button.
*/
public function enable_auto_update() {
check_ajax_referer( 'rank-math-ajax-nonce', 'security' );
$this->has_cap_ajax( 'general' );
$this->enable_auto_update_in_stored_data();
Helper::toggle_auto_update_setting( 'on' );
echo '1';
die;
}
/**
* Update the auto update value in the stored results.
*/
public function enable_auto_update_in_stored_data() {
$results = get_option( 'rank_math_seo_analysis_results' );
if ( ! isset( $results['auto_update'] ) ) {
return;
}
$results['auto_update']['status'] = 'ok';
$results['auto_update']['message'] = __( 'Rank Math auto-update option is enabled on your site.', 'rank-math' );
update_option( 'rank_math_seo_analysis_results', $results, false );
}
/**
* Run test through the Rank Math Analysis API.
*
* @return boolean
*/
private function run_api_tests() {
$response = $this->get_api_results();
if ( false === $response ) {
return false;
}
$this->process_api_results( $response );
return true;
}
/**
* Process results as needed.
*
* @param array $response Response.
*
* @return boolean
*/
private function process_api_results( $response ) {
foreach ( $response as $id => $results ) {
$this->results[ $id ] = wp_parse_args(
$results,
[
'test_id' => $id,
'api_test' => true,
]
);
}
return true;
}
/**
* Get API results.
*
* @return bool|array
*/
private function get_api_results() {
$api_url = Security::add_query_arg_raw(
[
'u' => $this->analyse_url,
'locale' => get_locale(),
'is_subpage' => $this->analyse_subpage,
],
$this->api_url
);
$request = wp_remote_get( $api_url, [ 'timeout' => 30 ] );
if ( is_wp_error( $request ) ) {
$this->api_error = wp_strip_all_tags( $request->get_error_message() );
return false;
}
$status = absint( wp_remote_retrieve_response_code( $request ) );
if ( 200 !== $status ) {
// Translators: placeholder is a HTTP error code.
$this->api_error = sprintf( __( 'HTTP %d error.', 'rank-math' ), $status );
return false;
}
$response = wp_remote_retrieve_body( $request );
$response = json_decode( $response, true );
if ( ! is_array( $response ) ) {
$this->api_error = __( 'Unexpected API response.', 'rank-math' );
return false;
}
return $response;
}
/**
* Run local site tests.
*/
private function run_local_tests() {
foreach ( $this->local_tests as $id => $test ) {
$this->results[ $id ] = array_merge(
[
'test_id' => $id,
'api_test' => false,
'title' => $test['title'],
'description' => $test['description'],
'fix' => isset( $test['how_to_fix'] ) ? $test['how_to_fix'] : '',
'category' => $test['category'],
'info' => [],
'kb_link' => isset( $test['kb_link'] ) ? $test['kb_link'] : 'https://rankmath.com/kb/seo-analysis',
'tooltip' => ! empty( $test['tooltip'] ) ? $test['tooltip'] : '',
],
call_user_func( $test['callback'], $this )
);
}
}
/**
* Check if it is a valid URL on this site.
*
* @param string $url Check url if it is allowed.
* @return bool
*/
private function is_allowed_url( $url ) {
$allowed = true;
$home = get_home_url();
if ( strpos( $url, $home ) !== 0 ) {
$allowed = false;
}
// wp-admin pages are not allowed.
if ( strpos( substr( $url, strlen( $home ) ), '/wp-admin' ) === 0 ) {
$allowed = false;
}
return $this->do_filter( 'analysis/is_allowed_url', $allowed, $url );
}
/**
* Sort results by category.
*
* @return array
*/
private function sort_results_by_category() {
$data = [];
foreach ( $this->results as $result ) {
if ( $result->is_hidden() ) {
continue;
}
$category = $result->get_category();
if ( ! isset( $data[ $category ] ) ) {
$data[ $category ] = [];
}
$data[ $category ][ $result->get_id() ] = $result;
}
return $data;
}
/**
* Get category label by slug.
*
* @param string $category Current category slug.
* @return string
*/
private function get_category_label( $category ) {
$category_map = [
'priority' => esc_html__( 'Priority', 'rank-math' ),
'advanced' => esc_html__( 'Advanced SEO', 'rank-math' ),
'basic' => esc_html__( 'Basic SEO', 'rank-math' ),
'performance' => esc_html__( 'Performance', 'rank-math' ),
'security' => esc_html__( 'Security', 'rank-math' ),
];
return isset( $category_map[ $category ] ) ? $category_map[ $category ] : '';
}
/**
* Get admin tabs.
*/
public function admin_tabs() {
$tabs = new Admin_Tabs();
$tabs->display();
}
}