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/wp-content/plugins/akismet/ -> class.akismet-admin.php (source)

   1  <?php
   2  
   3  // We plan to gradually remove all of the disabled lint rules below.
   4  // phpcs:disable WordPress.Security.ValidatedSanitizedInput.InputNotValidated
   5  // phpcs:disable WordPress.Security.ValidatedSanitizedInput.MissingUnslash
   6  // phpcs:disable WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
   7  // phpcs:disable Squiz.PHP.DisallowMultipleAssignments.FoundInControlStructure
   8  // phpcs:disable WordPress.Security.EscapeOutput.OutputNotEscaped
   9  
  10  class Akismet_Admin {
  11  
  12      const NONCE = 'akismet-update-key';
  13  
  14      const NOTICE_EXISTING_KEY_INVALID = 'existing-key-invalid';
  15  
  16      private static $initiated = false;
  17      private static $notices   = array();
  18      private static $allowed   = array(
  19          'a'      => array(
  20              'href'  => true,
  21              'title' => true,
  22          ),
  23          'b'      => array(),
  24          'code'   => array(),
  25          'del'    => array(
  26              'datetime' => true,
  27          ),
  28          'em'     => array(),
  29          'i'      => array(),
  30          'q'      => array(
  31              'cite' => true,
  32          ),
  33          'strike' => array(),
  34          'strong' => array(),
  35      );
  36  
  37      /**
  38       * List of pages where activation banner should be displayed.
  39       *
  40       * @var array
  41       */
  42      private static $activation_banner_pages = array(
  43          'edit-comments.php',
  44          'options-discussion.php',
  45          'plugins.php',
  46      );
  47  
  48  	public static function init() {
  49          if ( ! self::$initiated ) {
  50              self::init_hooks();
  51          }
  52  
  53          if ( isset( $_POST['action'] ) && $_POST['action'] == 'enter-key' ) {
  54              self::enter_api_key();
  55          }
  56      }
  57  
  58  	public static function init_hooks() {
  59          // The standalone stats page was removed in 3.0 for an all-in-one config and stats page.
  60          // Redirect any links that might have been bookmarked or in browser history.
  61          if ( isset( $_GET['page'] ) && 'akismet-stats-display' == $_GET['page'] ) {
  62              wp_safe_redirect( esc_url_raw( self::get_page_url( 'stats' ) ), 301 );
  63              die;
  64          }
  65  
  66          self::$initiated = true;
  67  
  68          add_action( 'admin_init', array( 'Akismet_Admin', 'admin_init' ) );
  69          add_action( 'admin_menu', array( 'Akismet_Admin', 'admin_menu' ), 5 ); // Priority 5, so it's called before Jetpack's admin_menu.
  70          add_action( 'admin_notices', array( 'Akismet_Admin', 'display_notice' ) );
  71          add_action( 'admin_enqueue_scripts', array( 'Akismet_Admin', 'load_resources' ) );
  72          add_action( 'activity_box_end', array( 'Akismet_Admin', 'dashboard_stats' ) );
  73          add_action( 'rightnow_end', array( 'Akismet_Admin', 'rightnow_stats' ) );
  74          add_action( 'manage_comments_nav', array( 'Akismet_Admin', 'check_for_spam_button' ) );
  75          add_action( 'admin_action_akismet_recheck_queue', array( 'Akismet_Admin', 'recheck_queue' ) );
  76          add_action( 'wp_ajax_akismet_recheck_queue', array( 'Akismet_Admin', 'recheck_queue' ) );
  77          add_action( 'wp_ajax_comment_author_deurl', array( 'Akismet_Admin', 'remove_comment_author_url' ) );
  78          add_action( 'wp_ajax_comment_author_reurl', array( 'Akismet_Admin', 'add_comment_author_url' ) );
  79          add_action( 'jetpack_auto_activate_akismet', array( 'Akismet_Admin', 'connect_jetpack_user' ) );
  80  
  81          add_filter( 'plugin_action_links', array( 'Akismet_Admin', 'plugin_action_links' ), 10, 2 );
  82          add_filter( 'comment_row_actions', array( 'Akismet_Admin', 'comment_row_action' ), 10, 2 );
  83  
  84          add_filter( 'plugin_action_links_' . plugin_basename( plugin_dir_path( __FILE__ ) . 'akismet.php' ), array( 'Akismet_Admin', 'admin_plugin_settings_link' ) );
  85  
  86          add_filter( 'wxr_export_skip_commentmeta', array( 'Akismet_Admin', 'exclude_commentmeta_from_export' ), 10, 3 );
  87  
  88          add_filter( 'all_plugins', array( 'Akismet_Admin', 'modify_plugin_description' ) );
  89  
  90          // priority=1 because we need ours to run before core's comment anonymizer runs, and that's registered at priority=10
  91          add_filter( 'wp_privacy_personal_data_erasers', array( 'Akismet_Admin', 'register_personal_data_eraser' ), 1 );
  92      }
  93  
  94  	public static function admin_init() {
  95          if ( get_option( 'Activated_Akismet' ) ) {
  96              delete_option( 'Activated_Akismet' );
  97              if ( ! headers_sent() ) {
  98                  $admin_url = self::get_page_url( 'init' );
  99                  wp_redirect( $admin_url );
 100              }
 101          }
 102  
 103          add_meta_box( 'akismet-status', __( 'Comment History', 'akismet' ), array( 'Akismet_Admin', 'comment_status_meta_box' ), 'comment', 'normal' );
 104  
 105          if ( function_exists( 'wp_add_privacy_policy_content' ) ) {
 106              wp_add_privacy_policy_content(
 107                  __( 'Akismet', 'akismet' ),
 108                  __( 'We collect information about visitors who comment on Sites that use our Akismet Anti-spam service. The information we collect depends on how the User sets up Akismet for the Site, but typically includes the commenter\'s IP address, user agent, referrer, and Site URL (along with other information directly provided by the commenter such as their name, username, email address, and the comment itself).', 'akismet' )
 109              );
 110          }
 111      }
 112  
 113  	public static function admin_menu() {
 114          if ( class_exists( 'Jetpack' ) ) {
 115              add_action( 'jetpack_admin_menu', array( 'Akismet_Admin', 'load_menu' ) );
 116          } else {
 117              self::load_menu();
 118          }
 119      }
 120  
 121  	public static function admin_head() {
 122          if ( ! current_user_can( 'manage_options' ) ) {
 123              return;
 124          }
 125      }
 126  
 127  	public static function admin_plugin_settings_link( $links ) {
 128          $settings_link = '<a href="' . esc_url( self::get_page_url() ) . '">' . __( 'Settings', 'akismet' ) . '</a>';
 129          array_unshift( $links, $settings_link );
 130          return $links;
 131      }
 132  
 133  	public static function load_menu() {
 134          if ( class_exists( 'Jetpack' ) ) {
 135              $hook = add_submenu_page( 'jetpack', __( 'Akismet Anti-spam', 'akismet' ), __( 'Akismet Anti-spam', 'akismet' ), 'manage_options', 'akismet-key-config', array( 'Akismet_Admin', 'display_page' ) );
 136          } else {
 137              $hook = add_options_page( __( 'Akismet Anti-spam', 'akismet' ), __( 'Akismet Anti-spam', 'akismet' ), 'manage_options', 'akismet-key-config', array( 'Akismet_Admin', 'display_page' ) );
 138          }
 139  
 140          if ( $hook ) {
 141              add_action( "load-$hook", array( 'Akismet_Admin', 'admin_help' ) );
 142          }
 143      }
 144  
 145  	public static function load_resources() {
 146          global $hook_suffix;
 147  
 148          if ( in_array(
 149              $hook_suffix,
 150              apply_filters(
 151                  'akismet_admin_page_hook_suffixes',
 152                  array_merge(
 153                      array(
 154                          'index.php', // dashboard
 155                          'comment.php',
 156                          'post.php',
 157                          'settings_page_akismet-key-config',
 158                          'jetpack_page_akismet-key-config',
 159                      ),
 160                      self::$activation_banner_pages
 161                  )
 162              )
 163          ) ) {
 164              $akismet_css_path = is_rtl() ? '_inc/rtl/akismet-rtl.css' : '_inc/akismet.css';
 165              wp_register_style( 'akismet', plugin_dir_url( __FILE__ ) . $akismet_css_path, array(), self::get_asset_file_version( $akismet_css_path ) );
 166              wp_enqueue_style( 'akismet' );
 167  
 168              wp_register_style( 'akismet-font-inter', plugin_dir_url( __FILE__ ) . '_inc/fonts/inter.css', array(), self::get_asset_file_version( '_inc/fonts/inter.css' ) );
 169              wp_enqueue_style( 'akismet-font-inter' );
 170  
 171              $akismet_admin_css_path = is_rtl() ? '_inc/rtl/akismet-admin-rtl.css' : '_inc/akismet-admin.css';
 172              wp_register_style( 'akismet-admin', plugin_dir_url( __FILE__ ) . $akismet_admin_css_path, array(), self::get_asset_file_version( $akismet_admin_css_path ) );
 173              wp_enqueue_style( 'akismet-admin' );
 174  
 175              wp_add_inline_style( 'akismet-admin', self::get_inline_css() );
 176  
 177              wp_register_script( 'akismet.js', plugin_dir_url( __FILE__ ) . '_inc/akismet.js', array( 'jquery' ), self::get_asset_file_version( '_inc/akismet.js' ) );
 178              wp_enqueue_script( 'akismet.js' );
 179  
 180              wp_register_script( 'akismet-admin.js', plugin_dir_url( __FILE__ ) . '_inc/akismet-admin.js', array(), self::get_asset_file_version( '/_inc/akismet-admin.js' ) );
 181              wp_enqueue_script( 'akismet-admin.js' );
 182  
 183              $inline_js = array(
 184                  'comment_author_url_nonce' => wp_create_nonce( 'comment_author_url_nonce' ),
 185                  'strings'                  => array(
 186                      'Remove this URL' => __( 'Remove this URL', 'akismet' ),
 187                      'Removing...'     => __( 'Removing...', 'akismet' ),
 188                      'URL removed'     => __( 'URL removed', 'akismet' ),
 189                      '(undo)'          => __( '(undo)', 'akismet' ),
 190                      'Re-adding...'    => __( 'Re-adding...', 'akismet' ),
 191                  ),
 192              );
 193  
 194              if ( isset( $_GET['akismet_recheck'] ) && wp_verify_nonce( $_GET['akismet_recheck'], 'akismet_recheck' ) ) {
 195                  $inline_js['start_recheck'] = true;
 196              }
 197  
 198              if ( apply_filters( 'akismet_enable_mshots', true ) ) {
 199                  $inline_js['enable_mshots'] = true;
 200              }
 201  
 202              wp_localize_script( 'akismet.js', 'WPAkismet', $inline_js );
 203          }
 204      }
 205  
 206      /**
 207       * Add help to the Akismet page
 208       *
 209       * @return false if not the Akismet page
 210       */
 211  	public static function admin_help() {
 212          $current_screen = get_current_screen();
 213  
 214          // Screen Content
 215          if ( current_user_can( 'manage_options' ) ) {
 216              if ( ! Akismet::get_api_key() || ( isset( $_GET['view'] ) && $_GET['view'] == 'start' ) ) {
 217                  // setup page
 218                  $current_screen->add_help_tab(
 219                      array(
 220                          'id'      => 'overview',
 221                          'title'   => __( 'Overview', 'akismet' ),
 222                          'content' =>
 223                              '<p><strong>' . esc_html__( 'Akismet Setup', 'akismet' ) . '</strong></p>' .
 224                              '<p>' . esc_html__( 'Akismet filters out spam, so you can focus on more important things.', 'akismet' ) . '</p>' .
 225                              '<p>' . esc_html__( 'On this page, you are able to set up the Akismet plugin.', 'akismet' ) . '</p>',
 226                      )
 227                  );
 228  
 229                  $current_screen->add_help_tab(
 230                      array(
 231                          'id'      => 'setup-signup',
 232                          'title'   => __( 'New to Akismet', 'akismet' ),
 233                          'content' =>
 234                              '<p><strong>' . esc_html__( 'Akismet Setup', 'akismet' ) . '</strong></p>' .
 235                              '<p>' . esc_html__( 'You need to enter an API key to activate the Akismet service on your site.', 'akismet' ) . '</p>' .
 236                              /* translators: %s: a link to the signup page with the text 'Akismet.com'. */
 237                              '<p>' . sprintf( __( 'Sign up for an account on %s to get an API Key.', 'akismet' ), '<a href="https://akismet.com/plugin-signup/" target="_blank">Akismet.com</a>' ) . '</p>',
 238                      )
 239                  );
 240  
 241                  $current_screen->add_help_tab(
 242                      array(
 243                          'id'      => 'setup-manual',
 244                          'title'   => __( 'Enter an API Key', 'akismet' ),
 245                          'content' =>
 246                              '<p><strong>' . esc_html__( 'Akismet Setup', 'akismet' ) . '</strong></p>' .
 247                              '<p>' . esc_html__( 'If you already have an API key', 'akismet' ) . '</p>' .
 248                              '<ol>' .
 249                              '<li>' . esc_html__( 'Copy and paste the API key into the text field.', 'akismet' ) . '</li>' .
 250                              '<li>' . esc_html__( 'Click the Use this Key button.', 'akismet' ) . '</li>' .
 251                              '</ol>',
 252                      )
 253                  );
 254              } elseif ( isset( $_GET['view'] ) && $_GET['view'] == 'stats' ) {
 255                  // stats page
 256                  $current_screen->add_help_tab(
 257                      array(
 258                          'id'      => 'overview',
 259                          'title'   => __( 'Overview', 'akismet' ),
 260                          'content' =>
 261                              '<p><strong>' . esc_html__( 'Akismet Stats', 'akismet' ) . '</strong></p>' .
 262                              '<p>' . esc_html__( 'Akismet filters out spam, so you can focus on more important things.', 'akismet' ) . '</p>' .
 263                              '<p>' . esc_html__( 'On this page, you are able to view stats on spam filtered on your site.', 'akismet' ) . '</p>',
 264                      )
 265                  );
 266              } else {
 267                  // configuration page
 268                  $current_screen->add_help_tab(
 269                      array(
 270                          'id'      => 'overview',
 271                          'title'   => __( 'Overview', 'akismet' ),
 272                          'content' =>
 273                              '<p><strong>' . esc_html__( 'Akismet Configuration', 'akismet' ) . '</strong></p>' .
 274                              '<p>' . esc_html__( 'Akismet filters out spam, so you can focus on more important things.', 'akismet' ) . '</p>' .
 275                              '<p>' . esc_html__( 'On this page, you are able to update your Akismet settings and view spam stats.', 'akismet' ) . '</p>',
 276                      )
 277                  );
 278  
 279                  $current_screen->add_help_tab(
 280                      array(
 281                          'id'      => 'settings',
 282                          'title'   => __( 'Settings', 'akismet' ),
 283                          'content' =>
 284                              '<p><strong>' . esc_html__( 'Akismet Configuration', 'akismet' ) . '</strong></p>' .
 285                              ( Akismet::predefined_api_key() ? '' : '<p><strong>' . esc_html__( 'API Key', 'akismet' ) . '</strong> - ' . esc_html__( 'Enter/remove an API key.', 'akismet' ) . '</p>' ) .
 286                              '<p><strong>' . esc_html__( 'Comments', 'akismet' ) . '</strong> - ' . esc_html__( 'Show the number of approved comments beside each comment author in the comments list page.', 'akismet' ) . '</p>' .
 287                              '<p><strong>' . esc_html__( 'Strictness', 'akismet' ) . '</strong> - ' . esc_html__( 'Choose to either discard the worst spam automatically or to always put all spam in spam folder.', 'akismet' ) . '</p>',
 288                      )
 289                  );
 290  
 291                  if ( ! Akismet::predefined_api_key() ) {
 292                      $current_screen->add_help_tab(
 293                          array(
 294                              'id'      => 'account',
 295                              'title'   => __( 'Account', 'akismet' ),
 296                              'content' =>
 297                                  '<p><strong>' . esc_html__( 'Akismet Configuration', 'akismet' ) . '</strong></p>' .
 298                                  '<p><strong>' . esc_html__( 'Subscription Type', 'akismet' ) . '</strong> - ' . esc_html__( 'The Akismet subscription plan', 'akismet' ) . '</p>' .
 299                                  '<p><strong>' . esc_html__( 'Status', 'akismet' ) . '</strong> - ' . esc_html__( 'The subscription status - active, cancelled or suspended', 'akismet' ) . '</p>',
 300                          )
 301                      );
 302                  }
 303              }
 304          }
 305  
 306          // Help Sidebar
 307          $current_screen->set_help_sidebar(
 308              '<p><strong>' . esc_html__( 'For more information:', 'akismet' ) . '</strong></p>' .
 309              '<p><a href="https://akismet.com/faq/" target="_blank">' . esc_html__( 'Akismet FAQ', 'akismet' ) . '</a></p>' .
 310              '<p><a href="https://akismet.com/support/" target="_blank">' . esc_html__( 'Akismet Support', 'akismet' ) . '</a></p>'
 311          );
 312      }
 313  
 314  	public static function enter_api_key() {
 315          if ( ! current_user_can( 'manage_options' ) ) {
 316              die( __( 'Cheatin&#8217; uh?', 'akismet' ) );
 317          }
 318  
 319          if ( ! wp_verify_nonce( $_POST['_wpnonce'], self::NONCE ) ) {
 320              return false;
 321          }
 322  
 323          foreach ( array( 'akismet_strictness', 'akismet_show_user_comments_approved' ) as $option ) {
 324              update_option( $option, isset( $_POST[ $option ] ) && (int) $_POST[ $option ] == 1 ? '1' : '0' );
 325          }
 326  
 327          if ( ! empty( $_POST['akismet_comment_form_privacy_notice'] ) ) {
 328              self::set_form_privacy_notice_option( $_POST['akismet_comment_form_privacy_notice'] );
 329          } else {
 330              self::set_form_privacy_notice_option( 'hide' );
 331          }
 332  
 333          if ( Akismet::predefined_api_key() ) {
 334              return false; // shouldn't have option to save key if already defined
 335          }
 336  
 337          $new_key = preg_replace( '/[^a-f0-9]/i', '', $_POST['key'] );
 338          $old_key = Akismet::get_api_key();
 339  
 340          if ( empty( $new_key ) ) {
 341              if ( ! empty( $old_key ) ) {
 342                  delete_option( 'wordpress_api_key' );
 343                  self::$notices[] = 'new-key-empty';
 344              }
 345          } elseif ( $new_key != $old_key ) {
 346              self::save_key( $new_key );
 347          }
 348  
 349          return true;
 350      }
 351  
 352  	public static function save_key( $api_key ) {
 353          $key_status = Akismet::verify_key( $api_key );
 354  
 355          if ( $key_status == 'valid' ) {
 356              $akismet_user = self::get_akismet_user( $api_key );
 357  
 358              if ( $akismet_user ) {
 359                  if ( in_array( $akismet_user->status, array( 'active', 'active-dunning', 'no-sub' ) ) ) {
 360                      update_option( 'wordpress_api_key', $api_key );
 361                  }
 362  
 363                  if ( $akismet_user->status == 'active' ) {
 364                      self::$notices['status'] = 'new-key-valid';
 365                  } elseif ( $akismet_user->status == 'notice' ) {
 366                      self::$notices['status'] = $akismet_user;
 367                  } else {
 368                      self::$notices['status'] = $akismet_user->status;
 369                  }
 370              } else {
 371                  self::$notices['status'] = 'new-key-invalid';
 372              }
 373          } elseif ( in_array( $key_status, array( 'invalid', 'failed' ) ) ) {
 374              self::$notices['status'] = 'new-key-' . $key_status;
 375          }
 376      }
 377  
 378  	public static function dashboard_stats() {
 379          if ( did_action( 'rightnow_end' ) ) {
 380              return; // We already displayed this info in the "Right Now" section
 381          }
 382  
 383          if ( ! $count = get_option( 'akismet_spam_count' ) ) {
 384              return;
 385          }
 386  
 387          global $submenu;
 388  
 389          echo '<h3>' . esc_html( _x( 'Spam', 'comments', 'akismet' ) ) . '</h3>';
 390  
 391          echo '<p>' . sprintf(
 392              /* translators: 1: Akismet website URL, 2: Comments page URL, 3: Number of spam comments. */
 393              _n(
 394                  '<a href="%1$s">Akismet</a> has protected your site from <a href="%2$s">%3$s spam comment</a>.',
 395                  '<a href="%1$s">Akismet</a> has protected your site from <a href="%2$s">%3$s spam comments</a>.',
 396                  $count,
 397                  'akismet'
 398              ),
 399              'https://akismet.com/wordpress/',
 400              esc_url( add_query_arg( array( 'page' => 'akismet-admin' ), admin_url( isset( $submenu['edit-comments.php'] ) ? 'edit-comments.php' : 'edit.php' ) ) ),
 401              number_format_i18n( $count )
 402          ) . '</p>';
 403      }
 404  
 405      // WP 2.5+
 406  	public static function rightnow_stats() {
 407          if ( $count = get_option( 'akismet_spam_count' ) ) {
 408              $intro = sprintf(
 409              /* translators: 1: Akismet website URL, 2: Number of spam comments. */
 410                  _n(
 411                      '<a href="%1$s">Akismet</a> has protected your site from %2$s spam comment already. ',
 412                      '<a href="%1$s">Akismet</a> has protected your site from %2$s spam comments already. ',
 413                      $count,
 414                      'akismet'
 415                  ),
 416                  'https://akismet.com/wordpress/',
 417                  number_format_i18n( $count )
 418              );
 419          } else {
 420              /* translators: %s: Akismet website URL. */
 421              $intro = sprintf( __( '<a href="%s">Akismet</a> blocks spam from getting to your blog. ', 'akismet' ), 'https://akismet.com/wordpress/' );
 422          }
 423  
 424          $link = add_query_arg( array( 'comment_status' => 'spam' ), admin_url( 'edit-comments.php' ) );
 425  
 426          if ( $queue_count = self::get_spam_count() ) {
 427              $queue_text = sprintf(
 428              /* translators: 1: Number of comments, 2: Comments page URL. */
 429                  _n(
 430                      'There&#8217;s <a href="%2$s">%1$s comment</a> in your spam queue right now.',
 431                      'There are <a href="%2$s">%1$s comments</a> in your spam queue right now.',
 432                      $queue_count,
 433                      'akismet'
 434                  ),
 435                  number_format_i18n( $queue_count ),
 436                  esc_url( $link )
 437              );
 438          } else {
 439              /* translators: %s: Comments page URL. */
 440              $queue_text = sprintf( __( "There&#8217;s nothing in your <a href='%s'>spam queue</a> at the moment.", 'akismet' ), esc_url( $link ) );
 441          }
 442  
 443          $text = $intro . '<br />' . $queue_text;
 444          echo "<p class='akismet-right-now'>$text</p>\n";
 445      }
 446  
 447  	public static function check_for_spam_button( $comment_status ) {
 448          // The "Check for Spam" button should only appear when the page might be showing
 449          // a comment with comment_approved=0, which means an un-trashed, un-spammed,
 450          // not-yet-moderated comment.
 451          if ( 'all' != $comment_status && 'moderated' != $comment_status ) {
 452              return;
 453          }
 454  
 455          $link = '';
 456  
 457          $comments_count = wp_count_comments();
 458  
 459          echo '</div>';
 460          echo '<div class="alignleft actions">';
 461  
 462          $classes = array(
 463              'button-secondary',
 464              'checkforspam',
 465              'button-disabled',   // Disable button until the page is loaded
 466          );
 467  
 468          if ( $comments_count->moderated > 0 ) {
 469              $classes[] = 'enable-on-load';
 470  
 471              if ( ! Akismet::get_api_key() ) {
 472                  $link      = self::get_page_url();
 473                  $classes[] = 'ajax-disabled';
 474              }
 475          }
 476  
 477          echo '<a
 478                  class="' . esc_attr( implode( ' ', $classes ) ) . '"' .
 479              ( ! empty( $link ) ? ' href="' . esc_url( $link ) . '"' : '' ) .
 480              /* translators: The placeholder is for showing how much of the process has completed, as a percent. e.g., "Checking for Spam (40%)" */
 481              ' data-progress-label="' . esc_attr( __( 'Checking for Spam (%1$s%)', 'akismet' ) ) . '"
 482                  data-success-url="' . esc_attr(
 483                  remove_query_arg(
 484                      array( 'akismet_recheck', 'akismet_recheck_error' ),
 485                      add_query_arg(
 486                          array(
 487                              'akismet_recheck_complete' => 1,
 488                              'recheck_count'            => urlencode( '__recheck_count__' ),
 489                              'spam_count'               => urlencode( '__spam_count__' ),
 490                          )
 491                      )
 492                  )
 493              ) . '"
 494                  data-failure-url="' . esc_attr( remove_query_arg( array( 'akismet_recheck', 'akismet_recheck_complete' ), add_query_arg( array( 'akismet_recheck_error' => 1 ) ) ) ) . '"
 495                  data-pending-comment-count="' . esc_attr( $comments_count->moderated ) . '"
 496                  data-nonce="' . esc_attr( wp_create_nonce( 'akismet_check_for_spam' ) ) . '"
 497                  ' . ( ! in_array( 'ajax-disabled', $classes ) ? 'onclick="return false;"' : '' ) . '
 498                  >' . esc_html__( 'Check for Spam', 'akismet' ) . '</a>';
 499          echo '<span class="checkforspam-spinner"></span>';
 500      }
 501  
 502  	public static function recheck_queue() {
 503          global $wpdb;
 504  
 505          Akismet::fix_scheduled_recheck();
 506  
 507          if ( ! ( isset( $_GET['recheckqueue'] ) || ( isset( $_REQUEST['action'] ) && 'akismet_recheck_queue' == $_REQUEST['action'] ) ) ) {
 508              return;
 509          }
 510  
 511          if ( ! wp_verify_nonce( $_POST['nonce'], 'akismet_check_for_spam' ) ) {
 512              wp_send_json(
 513                  array(
 514                      'error' => __( 'You don&#8217;t have permission to do that.', 'akismet' ),
 515                  )
 516              );
 517              return;
 518          }
 519  
 520          $result_counts = self::recheck_queue_portion( empty( $_POST['offset'] ) ? 0 : $_POST['offset'], empty( $_POST['limit'] ) ? 100 : $_POST['limit'] );
 521  
 522          if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) {
 523              wp_send_json(
 524                  array(
 525                      'counts' => $result_counts,
 526                  )
 527              );
 528          } else {
 529              $redirect_to = isset( $_SERVER['HTTP_REFERER'] ) ? $_SERVER['HTTP_REFERER'] : admin_url( 'edit-comments.php' );
 530              wp_safe_redirect( $redirect_to );
 531              exit;
 532          }
 533      }
 534  
 535  	public static function recheck_queue_portion( $start = 0, $limit = 100 ) {
 536          global $wpdb;
 537  
 538          $paginate = '';
 539  
 540          if ( $limit <= 0 ) {
 541              $limit = 100;
 542          }
 543  
 544          if ( $start < 0 ) {
 545              $start = 0;
 546          }
 547  
 548          $moderation = $wpdb->get_col( $wpdb->prepare( "SELECT * FROM {$wpdb->comments} WHERE comment_approved = '0' LIMIT %d OFFSET %d", $limit, $start ) );
 549  
 550          $result_counts = array(
 551              'processed' => is_countable( $moderation ) ? count( $moderation ) : 0,
 552              'spam'      => 0,
 553              'ham'       => 0,
 554              'error'     => 0,
 555          );
 556  
 557          foreach ( $moderation as $comment_id ) {
 558              $api_response = Akismet::recheck_comment( $comment_id, 'recheck_queue' );
 559  
 560              if ( 'true' === $api_response ) {
 561                  ++$result_counts['spam'];
 562              } elseif ( 'false' === $api_response ) {
 563                  ++$result_counts['ham'];
 564              } else {
 565                  ++$result_counts['error'];
 566              }
 567          }
 568  
 569          return $result_counts;
 570      }
 571  
 572      // Adds an 'x' link next to author URLs, clicking will remove the author URL and show an undo link
 573  	public static function remove_comment_author_url() {
 574          if ( ! empty( $_POST['id'] ) && check_admin_referer( 'comment_author_url_nonce' ) ) {
 575              $comment_id = intval( $_POST['id'] );
 576              $comment    = get_comment( $comment_id, ARRAY_A );
 577              if ( $comment && current_user_can( 'edit_comment', $comment['comment_ID'] ) ) {
 578                  $comment['comment_author_url'] = '';
 579                  do_action( 'comment_remove_author_url' );
 580                  print( wp_update_comment( $comment ) );
 581                  die();
 582              }
 583          }
 584      }
 585  
 586  	public static function add_comment_author_url() {
 587          if ( ! empty( $_POST['id'] ) && ! empty( $_POST['url'] ) && check_admin_referer( 'comment_author_url_nonce' ) ) {
 588              $comment_id = intval( $_POST['id'] );
 589              $comment    = get_comment( $comment_id, ARRAY_A );
 590              if ( $comment && current_user_can( 'edit_comment', $comment['comment_ID'] ) ) {
 591                  $comment['comment_author_url'] = esc_url( $_POST['url'] );
 592                  do_action( 'comment_add_author_url' );
 593                  print( wp_update_comment( $comment ) );
 594                  die();
 595              }
 596          }
 597      }
 598  
 599  	public static function comment_row_action( $a, $comment ) {
 600          $akismet_result = get_comment_meta( $comment->comment_ID, 'akismet_result', true );
 601          if ( ! $akismet_result && get_comment_meta( $comment->comment_ID, 'akismet_skipped', true ) ) {
 602              $akismet_result = 'skipped'; // Akismet chose to skip the comment-check request.
 603          }
 604  
 605          $akismet_error  = get_comment_meta( $comment->comment_ID, 'akismet_error', true );
 606          $user_result    = get_comment_meta( $comment->comment_ID, 'akismet_user_result', true );
 607          $comment_status = wp_get_comment_status( $comment->comment_ID );
 608          $desc           = null;
 609          if ( $akismet_error ) {
 610              $desc = __( 'Awaiting spam check', 'akismet' );
 611          } elseif ( ! $user_result || $user_result == $akismet_result ) {
 612              // Show the original Akismet result if the user hasn't overridden it, or if their decision was the same
 613              if ( $akismet_result == 'true' && $comment_status != 'spam' && $comment_status != 'trash' ) {
 614                  $desc = __( 'Flagged as spam by Akismet', 'akismet' );
 615              } elseif ( $akismet_result == 'false' && $comment_status == 'spam' ) {
 616                  $desc = __( 'Cleared by Akismet', 'akismet' );
 617              }
 618          } else {
 619              $who = get_comment_meta( $comment->comment_ID, 'akismet_user', true );
 620              if ( $user_result == 'true' ) {
 621                  /* translators: %s: Username. */
 622                  $desc = sprintf( __( 'Flagged as spam by %s', 'akismet' ), $who );
 623              } else {
 624                  /* translators: %s: Username. */
 625                  $desc = sprintf( __( 'Un-spammed by %s', 'akismet' ), $who );
 626              }
 627          }
 628  
 629          // add a History item to the hover links, just after Edit
 630          if ( $akismet_result && is_array( $a ) ) {
 631              $b = array();
 632              foreach ( $a as $k => $item ) {
 633                  $b[ $k ] = $item;
 634                  if (
 635                      $k == 'edit'
 636                      || $k == 'unspam'
 637                  ) {
 638                      $b['history'] = '<a href="comment.php?action=editcomment&amp;c=' . $comment->comment_ID . '#akismet-status" title="' . esc_attr__( 'View comment history', 'akismet' ) . '"> ' . esc_html__( 'History', 'akismet' ) . '</a>';
 639                  }
 640              }
 641  
 642              $a = $b;
 643          }
 644  
 645          if ( $desc ) {
 646              echo '<span class="akismet-status" commentid="' . $comment->comment_ID . '"><a href="comment.php?action=editcomment&amp;c=' . $comment->comment_ID . '#akismet-status" title="' . esc_attr__( 'View comment history', 'akismet' ) . '">' . esc_html( $desc ) . '</a></span>';
 647          }
 648  
 649          $show_user_comments_option = get_option( 'akismet_show_user_comments_approved' );
 650  
 651          if ( $show_user_comments_option === false ) {
 652              // Default to active if the user hasn't made a decision.
 653              $show_user_comments_option = '1';
 654          }
 655  
 656          $show_user_comments = apply_filters( 'akismet_show_user_comments_approved', $show_user_comments_option );
 657          $show_user_comments = $show_user_comments === 'false' ? false : $show_user_comments; // option used to be saved as 'false' / 'true'
 658  
 659          if ( $show_user_comments ) {
 660              $comment_count = Akismet::get_user_comments_approved( $comment->user_id, $comment->comment_author_email, $comment->comment_author, $comment->comment_author_url );
 661              $comment_count = intval( $comment_count );
 662              echo '<span class="akismet-user-comment-count" commentid="' . $comment->comment_ID . '" style="display:none;"><br><span class="akismet-user-comment-counts">';
 663              /* translators: %s: Number of comments. */
 664              echo sprintf( esc_html( _n( '%s approved', '%s approved', $comment_count, 'akismet' ) ), number_format_i18n( $comment_count ) ) . '</span></span>';
 665          }
 666  
 667          return $a;
 668      }
 669  
 670  	public static function comment_status_meta_box( $comment ) {
 671          $history = Akismet::get_comment_history( $comment->comment_ID );
 672  
 673          if ( $history ) {
 674              foreach ( $history as $row ) {
 675                  $message = '';
 676  
 677                  if ( ! empty( $row['message'] ) ) {
 678                      // Old versions of Akismet stored the message as a literal string in the commentmeta.
 679                      // New versions don't do that for two reasons:
 680                      // 1) Save space.
 681                      // 2) The message can be translated into the current language of the blog, not stuck
 682                      // in the language of the blog when the comment was made.
 683                      $message = esc_html( $row['message'] );
 684                  } elseif ( ! empty( $row['event'] ) ) {
 685                      // If possible, use a current translation.
 686                      switch ( $row['event'] ) {
 687                          case 'recheck-spam':
 688                              $message = esc_html( __( 'Akismet re-checked and caught this comment as spam.', 'akismet' ) );
 689                              break;
 690                          case 'check-spam':
 691                              $message = esc_html( __( 'Akismet caught this comment as spam.', 'akismet' ) );
 692                              break;
 693                          case 'recheck-ham':
 694                              $message = esc_html( __( 'Akismet re-checked and cleared this comment.', 'akismet' ) );
 695                              break;
 696                          case 'check-ham':
 697                              $message = esc_html( __( 'Akismet cleared this comment.', 'akismet' ) );
 698                              break;
 699                          case 'check-ham-pending':
 700                              $message = esc_html( __( 'Akismet provisionally cleared this comment.', 'akismet' ) );
 701                              break;
 702                          case 'wp-blacklisted':
 703                          case 'wp-disallowed':
 704                              $message = sprintf(
 705                              /* translators: The placeholder is a WordPress PHP function name. */
 706                                  esc_html( __( 'Comment was caught by %s.', 'akismet' ) ),
 707                                  function_exists( 'wp_check_comment_disallowed_list' ) ? '<code>wp_check_comment_disallowed_list</code>' : '<code>wp_blacklist_check</code>'
 708                              );
 709                              break;
 710                          case 'report-spam':
 711                              if ( isset( $row['user'] ) ) {
 712                                  /* translators: The placeholder is a username. */
 713                                  $message = esc_html( sprintf( __( '%s reported this comment as spam.', 'akismet' ), $row['user'] ) );
 714                              } elseif ( ! $message ) {
 715                                  $message = esc_html( __( 'This comment was reported as spam.', 'akismet' ) );
 716                              }
 717                              break;
 718                          case 'report-ham':
 719                              if ( isset( $row['user'] ) ) {
 720                                  /* translators: The placeholder is a username. */
 721                                  $message = esc_html( sprintf( __( '%s reported this comment as not spam.', 'akismet' ), $row['user'] ) );
 722                              } elseif ( ! $message ) {
 723                                  $message = esc_html( __( 'This comment was reported as not spam.', 'akismet' ) );
 724                              }
 725                              break;
 726                          case 'cron-retry-spam':
 727                              $message = esc_html( __( 'Akismet caught this comment as spam during an automatic retry.', 'akismet' ) );
 728                              break;
 729                          case 'cron-retry-ham':
 730                              $message = esc_html( __( 'Akismet cleared this comment during an automatic retry.', 'akismet' ) );
 731                              break;
 732                          case 'check-error':
 733                              if ( isset( $row['meta'], $row['meta']['response'] ) ) {
 734                                  /* translators: The placeholder is an error response returned by the API server. */
 735                                  $message = sprintf( esc_html( __( 'Akismet was unable to check this comment (response: %s) but will automatically retry later.', 'akismet' ) ), '<code>' . esc_html( $row['meta']['response'] ) . '</code>' );
 736                              } else {
 737                                  $message = esc_html( __( 'Akismet was unable to check this comment but will automatically retry later.', 'akismet' ) );
 738                              }
 739                              break;
 740                          case 'recheck-error':
 741                              if ( isset( $row['meta'], $row['meta']['response'] ) ) {
 742                                  /* translators: The placeholder is an error response returned by the API server. */
 743                                  $message = sprintf( esc_html( __( 'Akismet was unable to recheck this comment (response: %s).', 'akismet' ) ), '<code>' . esc_html( $row['meta']['response'] ) . '</code>' );
 744                              } else {
 745                                  $message = esc_html( __( 'Akismet was unable to recheck this comment.', 'akismet' ) );
 746                              }
 747                              break;
 748                          case 'webhook-spam':
 749                              $message = esc_html( __( 'Akismet caught this comment as spam and updated its status via webhook.', 'akismet' ) );
 750                              break;
 751                          case 'webhook-ham':
 752                              $message = esc_html( __( 'Akismet cleared this comment and updated its status via webhook.', 'akismet' ) );
 753                              break;
 754                          case 'webhook-spam-noaction':
 755                              $message = esc_html( __( 'Akismet determined this comment was spam during a recheck. It did not update the comment status because it had already been modified by another user or plugin.', 'akismet' ) );
 756                              break;
 757                          case 'webhook-ham-noaction':
 758                              $message = esc_html( __( 'Akismet cleared this comment during a recheck. It did not update the comment status because it had already been modified by another user or plugin.', 'akismet' ) );
 759                              break;
 760                          case 'akismet-skipped':
 761                              $message = esc_html( __( 'This comment was not sent to Akismet when it was submitted because it was caught by something else.', 'akismet' ) );
 762                              break;
 763                          case 'akismet-skipped-disallowed':
 764                              $message = esc_html( __( 'This comment was not sent to Akismet when it was submitted because it was caught by the comment disallowed list.', 'akismet' ) );
 765                              break;
 766                          default:
 767                              if ( preg_match( '/^status-changed/', $row['event'] ) ) {
 768                                  // Half of these used to be saved without the dash after 'status-changed'.
 769                                  // See https://plugins.trac.wordpress.org/changeset/1150658/akismet/trunk
 770                                  $new_status = preg_replace( '/^status-changed-?/', '', $row['event'] );
 771                                  /* translators: The placeholder is a short string (like 'spam' or 'approved') denoting the new comment status. */
 772                                  $message = sprintf( esc_html( __( 'Comment status was changed to %s', 'akismet' ) ), '<code>' . esc_html( $new_status ) . '</code>' );
 773                              } elseif ( preg_match( '/^status-/', $row['event'] ) ) {
 774                                  $new_status = preg_replace( '/^status-/', '', $row['event'] );
 775  
 776                                  if ( isset( $row['user'] ) ) {
 777                                      /* translators: %1$s is a username; %2$s is a short string (like 'spam' or 'approved') denoting the new comment status. */
 778                                      $message = sprintf( esc_html( __( '%1$s changed the comment status to %2$s.', 'akismet' ) ), $row['user'], '<code>' . esc_html( $new_status ) . '</code>' );
 779                                  }
 780                              }
 781                              break;
 782                      }
 783                  }
 784  
 785                  if ( ! empty( $message ) ) {
 786                      echo '<p>';
 787  
 788                      if ( isset( $row['time'] ) ) {
 789                          $time = gmdate( 'D d M Y @ h:i:s a', (int) $row['time'] ) . ' GMT';
 790  
 791                          /* translators: The placeholder is an amount of time, like "7 seconds" or "3 days" returned by the function human_time_diff(). */
 792                          $time_html = '<span style="color: #999;" alt="' . esc_attr( $time ) . '" title="' . esc_attr( $time ) . '">' . sprintf( esc_html__( '%s ago', 'akismet' ), human_time_diff( $row['time'] ) ) . '</span>';
 793  
 794                          printf(
 795                          /* translators: %1$s is a human-readable time difference, like "3 hours ago", and %2$s is an already-translated phrase describing how a comment's status changed, like "This comment was reported as spam." */
 796                              esc_html( __( '%1$s - %2$s', 'akismet' ) ),
 797                              // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
 798                              $time_html,
 799                              // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
 800                              $message
 801                          ); // esc_html() is done above so that we can use HTML in $message.
 802                      } else {
 803                          // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
 804                          echo $message; // esc_html() is done above so that we can use HTML in $message.
 805                      }
 806  
 807                      echo '</p>';
 808                  }
 809              }
 810          } else {
 811              echo '<p>';
 812              echo esc_html( __( 'No comment history.', 'akismet' ) );
 813              echo '</p>';
 814          }
 815      }
 816  
 817  	public static function plugin_action_links( $links, $file ) {
 818          if ( $file == plugin_basename( plugin_dir_url( __FILE__ ) . '/akismet.php' ) ) {
 819              $links[] = '<a href="' . esc_url( self::get_page_url() ) . '">' . esc_html__( 'Settings', 'akismet' ) . '</a>';
 820          }
 821  
 822          return $links;
 823      }
 824  
 825      // Total spam in queue
 826      // get_option( 'akismet_spam_count' ) is the total caught ever
 827  	public static function get_spam_count( $type = false ) {
 828          global $wpdb;
 829  
 830          if ( ! $type ) { // total
 831              $count = wp_cache_get( 'akismet_spam_count', 'widget' );
 832              if ( false === $count ) {
 833                  $count = wp_count_comments();
 834                  $count = $count->spam;
 835                  wp_cache_set( 'akismet_spam_count', $count, 'widget', 3600 );
 836              }
 837              return $count;
 838          } elseif ( 'comments' == $type || 'comment' == $type ) { // comments
 839              $type = '';
 840          }
 841  
 842          return (int) $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(comment_ID) FROM {$wpdb->comments} WHERE comment_approved = 'spam' AND comment_type = %s", $type ) );
 843      }
 844  
 845      // Check connectivity between the WordPress blog and Akismet's servers.
 846      // Returns an associative array of server IP addresses, where the key is the IP address, and value is true (available) or false (unable to connect).
 847  	public static function check_server_ip_connectivity() {
 848  
 849          $servers = $ips = array();
 850  
 851          // Some web hosts may disable this function
 852          if ( function_exists( 'gethostbynamel' ) ) {
 853  
 854              $ips = gethostbynamel( 'rest.akismet.com' );
 855              if ( $ips && is_array( $ips ) && count( $ips ) ) {
 856                  $api_key = Akismet::get_api_key();
 857  
 858                  foreach ( $ips as $ip ) {
 859                      $response = Akismet::verify_key( $api_key, $ip );
 860                      // even if the key is invalid, at least we know we have connectivity
 861                      if ( $response == 'valid' || $response == 'invalid' ) {
 862                          $servers[ $ip ] = 'connected';
 863                      } else {
 864                          $servers[ $ip ] = $response ? $response : 'unable to connect';
 865                      }
 866                  }
 867              }
 868          }
 869  
 870          return $servers;
 871      }
 872  
 873      // Simpler connectivity check
 874  	public static function check_server_connectivity( $cache_timeout = 86400 ) {
 875  
 876          $debug                        = array();
 877          $debug['PHP_VERSION']         = PHP_VERSION;
 878          $debug['WORDPRESS_VERSION']   = $GLOBALS['wp_version'];
 879          $debug['AKISMET_VERSION']     = AKISMET_VERSION;
 880          $debug['AKISMET__PLUGIN_DIR'] = AKISMET__PLUGIN_DIR;
 881          $debug['SITE_URL']            = site_url();
 882          $debug['HOME_URL']            = home_url();
 883  
 884          $servers = get_option( 'akismet_available_servers' );
 885          if ( ( time() - get_option( 'akismet_connectivity_time' ) < $cache_timeout ) && $servers !== false ) {
 886              $servers = self::check_server_ip_connectivity();
 887              update_option( 'akismet_available_servers', $servers );
 888              update_option( 'akismet_connectivity_time', time() );
 889          }
 890  
 891          if ( wp_http_supports( array( 'ssl' ) ) ) {
 892              $response = wp_remote_get( 'https://rest.akismet.com/1.1/test' );
 893          } else {
 894              $response = wp_remote_get( 'http://rest.akismet.com/1.1/test' );
 895          }
 896  
 897          $debug['gethostbynamel']  = function_exists( 'gethostbynamel' ) ? 'exists' : 'not here';
 898          $debug['Servers']         = $servers;
 899          $debug['Test Connection'] = $response;
 900  
 901          Akismet::log( $debug );
 902  
 903          if ( $response && 'connected' == wp_remote_retrieve_body( $response ) ) {
 904              return true;
 905          }
 906  
 907          return false;
 908      }
 909  
 910      // Check the server connectivity and store the available servers in an option.
 911  	public static function get_server_connectivity( $cache_timeout = 86400 ) {
 912          return self::check_server_connectivity( $cache_timeout );
 913      }
 914  
 915      /**
 916       * Find out whether any comments in the Pending queue have not yet been checked by Akismet.
 917       *
 918       * @return bool
 919       */
 920  	public static function are_any_comments_waiting_to_be_checked() {
 921          return ! ! get_comments(
 922              array(
 923                  // Exclude comments that are not pending. This would happen if someone manually approved or spammed a comment
 924                  // that was waiting to be checked. The akismet_error meta entry will eventually be removed by the cron recheck job.
 925                  'status'   => 'hold',
 926  
 927                  // This is the commentmeta that is saved when a comment couldn't be checked.
 928                  'meta_key' => 'akismet_error',
 929  
 930                  // We only need to know whether at least one comment is waiting for a check.
 931                  'number'   => 1,
 932              )
 933          );
 934      }
 935  
 936  	public static function get_page_url( $page = 'config' ) {
 937  
 938          $args = array( 'page' => 'akismet-key-config' );
 939  
 940          if ( $page == 'stats' ) {
 941              $args = array(
 942                  'page' => 'akismet-key-config',
 943                  'view' => 'stats',
 944              );
 945          } elseif ( $page == 'delete_key' ) {
 946              $args = array(
 947                  'page'     => 'akismet-key-config',
 948                  'view'     => 'start',
 949                  'action'   => 'delete-key',
 950                  '_wpnonce' => wp_create_nonce( self::NONCE ),
 951              );
 952          } elseif ( $page === 'init' ) {
 953              $args = array(
 954                  'page' => 'akismet-key-config',
 955                  'view' => 'start',
 956              );
 957          }
 958  
 959          return add_query_arg( $args, menu_page_url( 'akismet-key-config', false ) );
 960      }
 961  
 962  	public static function get_akismet_user( $api_key ) {
 963          $akismet_user = false;
 964  
 965          $request_args = array(
 966              'key'  => $api_key,
 967              'blog' => get_option( 'home' ),
 968          );
 969  
 970          $request_args = apply_filters( 'akismet_request_args', $request_args, 'get-subscription' );
 971  
 972          $subscription_verification = Akismet::http_post( Akismet::build_query( $request_args ), 'get-subscription' );
 973  
 974          if ( ! empty( $subscription_verification[1] ) ) {
 975              if ( 'invalid' !== $subscription_verification[1] ) {
 976                  $akismet_user = json_decode( $subscription_verification[1] );
 977              }
 978          }
 979  
 980          return $akismet_user;
 981      }
 982  
 983  	public static function get_stats( $api_key ) {
 984          $stat_totals = array();
 985  
 986          foreach ( array( '6-months', 'all' ) as $interval ) {
 987              $request_args = array(
 988                  'blog' => get_option( 'home' ),
 989                  'key'  => $api_key,
 990                  'from' => $interval,
 991              );
 992  
 993              $request_args = apply_filters( 'akismet_request_args', $request_args, 'get-stats' );
 994  
 995              $response = Akismet::http_post( Akismet::build_query( $request_args ), 'get-stats' );
 996  
 997              if ( ! empty( $response[1] ) ) {
 998                  $data = json_decode( $response[1] );
 999                  /*
1000                   * The json decoded response should be an object. If it's not an object, something's wrong, and the data
1001                   * shouldn't be added to the stats_totals array.
1002                   */
1003                  if ( is_object( $data ) ) {
1004                      $stat_totals[ $interval ] = $data;
1005                  }
1006              }
1007          }
1008  
1009          return $stat_totals;
1010      }
1011  
1012  	public static function verify_wpcom_key( $api_key, $user_id, $extra = array() ) {
1013          $request_args = array_merge(
1014              array(
1015                  'user_id'          => $user_id,
1016                  'api_key'          => $api_key,
1017                  'get_account_type' => 'true',
1018              ),
1019              $extra
1020          );
1021  
1022          $request_args = apply_filters( 'akismet_request_args', $request_args, 'verify-wpcom-key' );
1023  
1024          $akismet_account = Akismet::http_post( Akismet::build_query( $request_args ), 'verify-wpcom-key' );
1025  
1026          if ( ! empty( $akismet_account[1] ) ) {
1027              $akismet_account = json_decode( $akismet_account[1] );
1028          }
1029  
1030          Akismet::log( compact( 'akismet_account' ) );
1031  
1032          return $akismet_account;
1033      }
1034  
1035  	public static function connect_jetpack_user() {
1036  
1037          if ( $jetpack_user = self::get_jetpack_user() ) {
1038              if ( isset( $jetpack_user['user_id'] ) && isset( $jetpack_user['api_key'] ) ) {
1039                  $akismet_user = self::verify_wpcom_key( $jetpack_user['api_key'], $jetpack_user['user_id'], array( 'action' => 'connect_jetpack_user' ) );
1040  
1041                  if ( is_object( $akismet_user ) ) {
1042                      self::save_key( $akismet_user->api_key );
1043                      return in_array( $akismet_user->status, array( 'active', 'active-dunning', 'no-sub' ) );
1044                  }
1045              }
1046          }
1047  
1048          return false;
1049      }
1050  
1051  	public static function display_alert() {
1052          Akismet::view(
1053              'notice',
1054              array(
1055                  'type' => 'alert',
1056                  'code' => (int) get_option( 'akismet_alert_code' ),
1057                  'msg'  => get_option( 'akismet_alert_msg' ),
1058              )
1059          );
1060      }
1061  
1062  	public static function get_usage_limit_alert_data() {
1063          return array(
1064              'type'                => 'usage-limit',
1065              'code'                => (int) get_option( 'akismet_alert_code' ),
1066              'msg'                 => get_option( 'akismet_alert_msg' ),
1067              'api_calls'           => get_option( 'akismet_alert_api_calls' ),
1068              'usage_limit'         => get_option( 'akismet_alert_usage_limit' ),
1069              'upgrade_plan'        => get_option( 'akismet_alert_upgrade_plan' ),
1070              'upgrade_url'         => get_option( 'akismet_alert_upgrade_url' ),
1071              'upgrade_type'        => get_option( 'akismet_alert_upgrade_type' ),
1072              'upgrade_via_support' => get_option( 'akismet_alert_upgrade_via_support' ) === 'true',
1073          );
1074      }
1075  
1076  	public static function display_usage_limit_alert() {
1077          Akismet::view( 'notice', self::get_usage_limit_alert_data() );
1078      }
1079  
1080  	public static function display_spam_check_warning() {
1081          Akismet::fix_scheduled_recheck();
1082  
1083          if ( wp_next_scheduled( 'akismet_schedule_cron_recheck' ) > time() && self::are_any_comments_waiting_to_be_checked() ) {
1084              /*
1085               * The 'akismet_display_cron_disabled_notice' filter can be used to control whether the WP-Cron disabled notice is displayed.
1086               */
1087              if ( defined( 'DISABLE_WP_CRON' ) && DISABLE_WP_CRON && apply_filters( 'akismet_display_cron_disabled_notice', true ) ) {
1088                  Akismet::view( 'notice', array( 'type' => 'spam-check-cron-disabled' ) );
1089              } else {
1090                  /* translators: The Akismet configuration page URL. */
1091                  $link_text = apply_filters( 'akismet_spam_check_warning_link_text', sprintf( __( 'Please check your <a href="%s">Akismet configuration</a> and contact your web host if problems persist.', 'akismet' ), esc_url( self::get_page_url() ) ) );
1092                  Akismet::view(
1093                      'notice',
1094                      array(
1095                          'type'      => 'spam-check',
1096                          'link_text' => $link_text,
1097                      )
1098                  );
1099              }
1100          }
1101      }
1102  
1103  	public static function display_api_key_warning() {
1104          Akismet::view( 'notice', array( 'type' => 'plugin' ) );
1105      }
1106  
1107  	public static function display_page() {
1108          if ( ! Akismet::get_api_key() || ( isset( $_GET['view'] ) && $_GET['view'] == 'start' ) ) {
1109              self::display_start_page();
1110          } elseif ( isset( $_GET['view'] ) && $_GET['view'] == 'stats' ) {
1111              self::display_stats_page();
1112          } else {
1113              self::display_configuration_page();
1114          }
1115      }
1116  
1117  	public static function display_start_page() {
1118          if ( isset( $_GET['action'] ) ) {
1119              if ( $_GET['action'] == 'delete-key' ) {
1120                  if ( isset( $_GET['_wpnonce'] ) && wp_verify_nonce( $_GET['_wpnonce'], self::NONCE ) ) {
1121                      delete_option( 'wordpress_api_key' );
1122                  }
1123              }
1124          }
1125  
1126          $api_key               = Akismet::get_api_key();
1127          $existing_key_is_valid = ! (
1128              self::get_notice_by_key( 'status' ) === self::NOTICE_EXISTING_KEY_INVALID
1129          );
1130  
1131          if ( $api_key && $existing_key_is_valid ) {
1132              self::display_configuration_page();
1133              return;
1134          }
1135  
1136          // the user can choose to auto connect their API key by clicking a button on the akismet done page
1137          // if jetpack, get verified api key by using connected wpcom user id
1138          // if no jetpack, get verified api key by using an akismet token
1139  
1140          $akismet_user = false;
1141  
1142          if ( isset( $_GET['token'] ) && preg_match( '/^(\d+)-[0-9a-f]{20}$/', $_GET['token'] ) ) {
1143              $akismet_user = self::verify_wpcom_key( '', '', array( 'token' => $_GET['token'] ) );
1144          }
1145  
1146          if ( false === $akismet_user ) {
1147              $jetpack_user = self::get_jetpack_user();
1148  
1149              if ( is_array( $jetpack_user ) ) {
1150                  $akismet_user = self::verify_wpcom_key( $jetpack_user['api_key'], $jetpack_user['user_id'] );
1151              }
1152          }
1153  
1154          if ( isset( $_GET['action'] ) ) {
1155              if ( $_GET['action'] == 'save-key' ) {
1156                  if ( is_object( $akismet_user ) ) {
1157                      self::save_key( $akismet_user->api_key );
1158                      self::display_configuration_page();
1159                      return;
1160                  }
1161              }
1162          }
1163  
1164          Akismet::view( 'start', compact( 'akismet_user' ) );
1165  
1166          /*
1167          // To see all variants when testing.
1168          $akismet_user->status = 'no-sub';
1169          Akismet::view( 'start', compact( 'akismet_user' ) );
1170          $akismet_user->status = 'cancelled';
1171          Akismet::view( 'start', compact( 'akismet_user' ) );
1172          $akismet_user->status = 'suspended';
1173          Akismet::view( 'start', compact( 'akismet_user' ) );
1174          $akismet_user->status = 'other';
1175          Akismet::view( 'start', compact( 'akismet_user' ) );
1176          $akismet_user = false;
1177          */
1178      }
1179  
1180  	public static function display_stats_page() {
1181          Akismet::view( 'stats' );
1182      }
1183  
1184  	public static function display_configuration_page() {
1185          $api_key      = Akismet::get_api_key();
1186          $akismet_user = self::get_akismet_user( $api_key );
1187  
1188          if ( ! $akismet_user ) {
1189              // This could happen if the user's key became invalid after it was previously valid and successfully set up.
1190              self::$notices['status'] = self::NOTICE_EXISTING_KEY_INVALID;
1191              self::display_start_page();
1192              return;
1193          }
1194  
1195          $stat_totals = self::get_stats( $api_key );
1196  
1197          // If unset, create the new strictness option using the old discard option to determine its default.
1198          // If the old option wasn't set, default to discarding the blatant spam.
1199          if ( get_option( 'akismet_strictness' ) === false ) {
1200              add_option( 'akismet_strictness', ( get_option( 'akismet_discard_month' ) === 'false' ? '0' : '1' ) );
1201          }
1202  
1203          // Sync the local "Total spam blocked" count with the authoritative count from the server.
1204          if ( isset( $stat_totals['all'], $stat_totals['all']->spam ) ) {
1205              update_option( 'akismet_spam_count', $stat_totals['all']->spam );
1206          }
1207  
1208          $notices = array();
1209  
1210          if ( empty( self::$notices ) ) {
1211              if ( ! empty( $stat_totals['all'] ) && isset( $stat_totals['all']->time_saved ) && $akismet_user->status == 'active' && $akismet_user->account_type == 'free-api-key' ) {
1212  
1213                  $time_saved = false;
1214  
1215                  if ( $stat_totals['all']->time_saved > 1800 ) {
1216                      $total_in_minutes = round( $stat_totals['all']->time_saved / 60 );
1217                      $total_in_hours   = round( $total_in_minutes / 60 );
1218                      $total_in_days    = round( $total_in_hours / 8 );
1219                      $cleaning_up      = __( 'Cleaning up spam takes time.', 'akismet' );
1220  
1221                      if ( $total_in_days > 1 ) {
1222                          /* translators: %s: Number of days. */
1223                          $time_saved = $cleaning_up . ' ' . sprintf( _n( 'Akismet has saved you %s day!', 'Akismet has saved you %s days!', $total_in_days, 'akismet' ), number_format_i18n( $total_in_days ) );
1224                      } elseif ( $total_in_hours > 1 ) {
1225                          /* translators: %s: Number of hours. */
1226                          $time_saved = $cleaning_up . ' ' . sprintf( _n( 'Akismet has saved you %d hour!', 'Akismet has saved you %d hours!', $total_in_hours, 'akismet' ), $total_in_hours );
1227                      } elseif ( $total_in_minutes >= 30 ) {
1228                          /* translators: %s: Number of minutes. */
1229                          $time_saved = $cleaning_up . ' ' . sprintf( _n( 'Akismet has saved you %d minute!', 'Akismet has saved you %d minutes!', $total_in_minutes, 'akismet' ), $total_in_minutes );
1230                      }
1231                  }
1232  
1233                  $notices[] = array(
1234                      'type'       => 'active-notice',
1235                      'time_saved' => $time_saved,
1236                  );
1237              }
1238          }
1239  
1240          if ( ! Akismet::predefined_api_key() && ! isset( self::$notices['status'] ) && in_array( $akismet_user->status, array( 'cancelled', 'suspended', 'missing', 'no-sub' ) ) ) {
1241              $notices[] = array( 'type' => $akismet_user->status );
1242          }
1243  
1244          $alert_code = get_option( 'akismet_alert_code' );
1245          if ( isset( Akismet::$limit_notices[ $alert_code ] ) ) {
1246              $notices[] = self::get_usage_limit_alert_data();
1247          } elseif ( $alert_code > 0 ) {
1248              $notices[] = array(
1249                  'type' => 'alert',
1250                  'code' => (int) get_option( 'akismet_alert_code' ),
1251                  'msg'  => get_option( 'akismet_alert_msg' ),
1252              );
1253          }
1254  
1255          /*
1256           *  To see all variants when testing.
1257           *
1258           *  You may also want to comment out the akismet_view_arguments filter in Akismet::view()
1259           *  to ensure that you can see all of the notices (e.g. suspended, active-notice).
1260          */
1261          // $notices[] = array( 'type' => 'active-notice', 'time_saved' => 'Cleaning up spam takes time. Akismet has saved you 1 minute!' );
1262          // $notices[] = array( 'type' => 'plugin' );
1263          // $notices[] = array( 'type' => 'notice', 'notice_header' => 'This is the notice header.', 'notice_text' => 'This is the notice text.' );
1264          // $notices[] = array( 'type' => 'missing-functions' );
1265          // $notices[] = array( 'type' => 'servers-be-down' );
1266          // $notices[] = array( 'type' => 'active-dunning' );
1267          // $notices[] = array( 'type' => 'cancelled' );
1268          // $notices[] = array( 'type' => 'suspended' );
1269          // $notices[] = array( 'type' => 'missing' );
1270          // $notices[] = array( 'type' => 'no-sub' );
1271          // $notices[] = array( 'type' => 'new-key-valid' );
1272          // $notices[] = array( 'type' => 'new-key-invalid' );
1273          // $notices[] = array( 'type' => 'existing-key-invalid' );
1274          // $notices[] = array( 'type' => 'new-key-failed' );
1275          // $notices[] = array( 'type' => 'usage-limit', 'api_calls' => '15000', 'usage_limit' => '10000', 'upgrade_plan' => 'Enterprise', 'upgrade_url' => 'https://akismet.com/account/', 'code' => 10502 );
1276          // $notices[] = array( 'type' => 'spam-check', 'link_text' => 'Link text.' );
1277          // $notices[] = array( 'type' => 'spam-check-cron-disabled' );
1278          // $notices[] = array( 'type' => 'alert', 'code' => 123 );
1279          // $notices[] = array( 'type' => 'alert', 'code' => Akismet::ALERT_CODE_COMMERCIAL );
1280  
1281          Akismet::log( compact( 'stat_totals', 'akismet_user' ) );
1282          Akismet::view( 'config', compact( 'api_key', 'akismet_user', 'stat_totals', 'notices' ) );
1283      }
1284  
1285  	public static function display_notice() {
1286          global $hook_suffix;
1287  
1288          if ( in_array( $hook_suffix, array( 'jetpack_page_akismet-key-config', 'settings_page_akismet-key-config' ) ) ) {
1289              // This page manages the notices and puts them inline where they make sense.
1290              return;
1291          }
1292  
1293          // To see notice variants while testing.
1294          // Akismet::view( 'notice', array( 'type' => 'spam-check-cron-disabled' ) );
1295          // Akismet::view( 'notice', array( 'type' => 'spam-check' ) );
1296          // Akismet::view( 'notice', array( 'type' => 'alert', 'code' => 123, 'msg' => 'Message' ) );
1297  
1298          if ( in_array( $hook_suffix, array( 'edit-comments.php' ) ) && (int) get_option( 'akismet_alert_code' ) > 0 ) {
1299              Akismet::verify_key( Akismet::get_api_key() ); // verify that the key is still in alert state
1300  
1301              $alert_code = get_option( 'akismet_alert_code' );
1302              if ( isset( Akismet::$limit_notices[ $alert_code ] ) ) {
1303                  self::display_usage_limit_alert();
1304              } elseif ( $alert_code > 0 ) {
1305                  self::display_alert();
1306              }
1307          } elseif ( in_array( $hook_suffix, self::$activation_banner_pages, true ) && ! Akismet::get_api_key() ) {
1308              // Show the "Set Up Akismet" banner on the comments and plugin pages if no API key has been set.
1309              self::display_api_key_warning();
1310          } elseif ( $hook_suffix == 'edit-comments.php' && wp_next_scheduled( 'akismet_schedule_cron_recheck' ) ) {
1311              self::display_spam_check_warning();
1312          }
1313  
1314          if ( isset( $_GET['akismet_recheck_complete'] ) ) {
1315              $recheck_count = (int) $_GET['recheck_count'];
1316              $spam_count    = (int) $_GET['spam_count'];
1317  
1318              if ( $recheck_count === 0 ) {
1319                  $message = __( 'There were no comments to check. Akismet will only check comments awaiting moderation.', 'akismet' );
1320              } else {
1321                  /* translators: %s: Number of comments. */
1322                  $message  = sprintf( _n( 'Akismet checked %s comment.', 'Akismet checked %s comments.', $recheck_count, 'akismet' ), number_format( $recheck_count ) );
1323                  $message .= ' ';
1324  
1325                  if ( $spam_count === 0 ) {
1326                      $message .= __( 'No comments were caught as spam.', 'akismet' );
1327                  } else {
1328                      /* translators: %s: Number of comments. */
1329                      $message .= sprintf( _n( '%s comment was caught as spam.', '%s comments were caught as spam.', $spam_count, 'akismet' ), number_format( $spam_count ) );
1330                  }
1331              }
1332  
1333              echo '<div class="notice notice-success"><p>' . esc_html( $message ) . '</p></div>';
1334          } elseif ( isset( $_GET['akismet_recheck_error'] ) ) {
1335              echo '<div class="notice notice-error"><p>' . esc_html( __( 'Akismet could not recheck your comments for spam.', 'akismet' ) ) . '</p></div>';
1336          }
1337      }
1338  
1339  	public static function display_status() {
1340          if ( ! self::get_server_connectivity() ) {
1341              Akismet::view( 'notice', array( 'type' => 'servers-be-down' ) );
1342          } elseif ( ! empty( self::$notices ) ) {
1343              foreach ( self::$notices as $index => $type ) {
1344                  if ( is_object( $type ) ) {
1345                      $notice_header = $notice_text = '';
1346  
1347                      if ( property_exists( $type, 'notice_header' ) ) {
1348                          $notice_header = wp_kses( $type->notice_header, self::$allowed );
1349                      }
1350  
1351                      if ( property_exists( $type, 'notice_text' ) ) {
1352                          $notice_text = wp_kses( $type->notice_text, self::$allowed );
1353                      }
1354  
1355                      if ( property_exists( $type, 'status' ) ) {
1356                          $type = wp_kses( $type->status, self::$allowed );
1357                          Akismet::view( 'notice', compact( 'type', 'notice_header', 'notice_text' ) );
1358  
1359                          unset( self::$notices[ $index ] );
1360                      }
1361                  } else {
1362                      Akismet::view( 'notice', compact( 'type' ) );
1363  
1364                      unset( self::$notices[ $index ] );
1365                  }
1366              }
1367          }
1368      }
1369  
1370      /**
1371       * Gets a specific notice by key.
1372       *
1373       * @param $key
1374       * @return mixed
1375       */
1376  	private static function get_notice_by_key( $key ) {
1377          return self::$notices[ $key ] ?? null;
1378      }
1379  
1380      /**
1381       * Gets a Jetpack user.
1382       *
1383       * @return array|false
1384       */
1385  	private static function get_jetpack_user() {
1386          if ( ! class_exists( 'Jetpack' ) ) {
1387              return false;
1388          }
1389  
1390          if ( defined( 'JETPACK__VERSION' ) && version_compare( JETPACK__VERSION, '7.7', '<' ) ) {
1391              // For version of Jetpack prior to 7.7.
1392              Jetpack::load_xml_rpc_client();
1393          }
1394  
1395          $xml = new Jetpack_IXR_ClientMulticall( array( 'user_id' => get_current_user_id() ) );
1396  
1397          $xml->addCall( 'wpcom.getUserID' );
1398          $xml->addCall( 'akismet.getAPIKey' );
1399          $xml->query();
1400  
1401          Akismet::log( compact( 'xml' ) );
1402  
1403          if ( ! $xml->isError() ) {
1404              $responses = $xml->getResponse();
1405              if ( ( is_countable( $responses ) ? count( $responses ) : 0 ) > 1 ) {
1406                  // Due to a quirk in how Jetpack does multi-calls, the response order
1407                  // can't be trusted to match the call order. It's a good thing our
1408                  // return values can be mostly differentiated from each other.
1409                  $first_response_value  = array_shift( $responses[0] );
1410                  $second_response_value = array_shift( $responses[1] );
1411  
1412                  // If WPCOM ever reaches 100 billion users, this will fail. :-)
1413                  if ( preg_match( '/^[a-f0-9]{12}$/i', $first_response_value ) ) {
1414                      $api_key = $first_response_value;
1415                      $user_id = (int) $second_response_value;
1416                  } else {
1417                      $api_key = $second_response_value;
1418                      $user_id = (int) $first_response_value;
1419                  }
1420  
1421                  return compact( 'api_key', 'user_id' );
1422              }
1423          }
1424          return false;
1425      }
1426  
1427      /**
1428       * Some commentmeta isn't useful in an export file. Suppress it (when supported).
1429       *
1430       * @param bool   $exclude
1431       * @param string $key The meta key
1432       * @param object $meta The meta object
1433       * @return bool Whether to exclude this meta entry from the export.
1434       */
1435  	public static function exclude_commentmeta_from_export( $exclude, $key, $meta ) {
1436          if (
1437              in_array(
1438                  $key,
1439                  array(
1440                      'akismet_as_submitted',
1441                      'akismet_delay_moderation_email',
1442                      'akismet_delayed_moderation_email',
1443                      'akismet_rechecking',
1444                      'akismet_schedule_approval_fallback',
1445                      'akismet_schedule_email_fallback',
1446                      'akismet_skipped_microtime',
1447                  )
1448              )
1449          ) {
1450              return true;
1451          }
1452  
1453          return $exclude;
1454      }
1455  
1456      /**
1457       * When Akismet is active, remove the "Activate Akismet" step from the plugin description.
1458       */
1459  	public static function modify_plugin_description( $all_plugins ) {
1460          if ( isset( $all_plugins['akismet/akismet.php'] ) ) {
1461              if ( Akismet::get_api_key() ) {
1462                  $all_plugins['akismet/akismet.php']['Description'] = __( 'Used by millions, Akismet is quite possibly the best way in the world to <strong>protect your blog from spam</strong>. Your site is fully configured and being protected, even while you sleep.', 'akismet' );
1463              } else {
1464                  $all_plugins['akismet/akismet.php']['Description'] = __( 'Used by millions, Akismet is quite possibly the best way in the world to <strong>protect your blog from spam</strong>. It keeps your site protected even while you sleep. To get started, just go to <a href="admin.php?page=akismet-key-config">your Akismet Settings page</a> to set up your API key.', 'akismet' );
1465              }
1466          }
1467  
1468          return $all_plugins;
1469      }
1470  
1471  	private static function set_form_privacy_notice_option( $state ) {
1472          if ( in_array( $state, array( 'display', 'hide' ) ) ) {
1473              update_option( 'akismet_comment_form_privacy_notice', $state );
1474          }
1475      }
1476  
1477  	public static function register_personal_data_eraser( $erasers ) {
1478          $erasers['akismet'] = array(
1479              'eraser_friendly_name' => __( 'Akismet', 'akismet' ),
1480              'callback'             => array( 'Akismet_Admin', 'erase_personal_data' ),
1481          );
1482  
1483          return $erasers;
1484      }
1485  
1486      /**
1487       * When a user requests that their personal data be removed, Akismet has a duty to discard
1488       * any personal data we store outside of the comment itself. Right now, that is limited
1489       * to the copy of the comment we store in the akismet_as_submitted commentmeta.
1490       *
1491       * FWIW, this information would be automatically deleted after 15 days.
1492       *
1493       * @param $email_address string The email address of the user who has requested erasure.
1494       * @param $page int This function can (and will) be called multiple times to prevent timeouts,
1495       *                  so this argument is used for pagination.
1496       * @return array
1497       * @see https://developer.wordpress.org/plugins/privacy/adding-the-personal-data-eraser-to-your-plugin/
1498       */
1499  	public static function erase_personal_data( $email_address, $page = 1 ) {
1500          $items_removed = false;
1501  
1502          $number = 50;
1503          $page   = (int) $page;
1504  
1505          $comments = get_comments(
1506              array(
1507                  'author_email' => $email_address,
1508                  'number'       => $number,
1509                  'paged'        => $page,
1510                  'order_by'     => 'comment_ID',
1511                  'order'        => 'ASC',
1512              )
1513          );
1514  
1515          foreach ( (array) $comments as $comment ) {
1516              $comment_as_submitted = get_comment_meta( $comment->comment_ID, 'akismet_as_submitted', true );
1517  
1518              if ( $comment_as_submitted ) {
1519                  delete_comment_meta( $comment->comment_ID, 'akismet_as_submitted' );
1520                  $items_removed = true;
1521              }
1522          }
1523  
1524          // Tell core if we have more comments to work on still
1525          $done = ( is_countable( $comments ) ? count( $comments ) : 0 ) < $number;
1526  
1527          return array(
1528              'items_removed'  => $items_removed,
1529              'items_retained' => false, // always false in this example
1530              'messages'       => array(), // no messages in this example
1531              'done'           => $done,
1532          );
1533      }
1534  
1535      /**
1536       * Return an array of HTML elements that are allowed in a notice.
1537       *
1538       * @return array
1539       */
1540  	public static function get_notice_kses_allowed_elements() {
1541          return self::$allowed;
1542      }
1543  
1544      /**
1545       * Return a version to append to the URL of an asset file (e.g. CSS and images).
1546       *
1547       * @param string $relative_path Relative path to asset file
1548       * @return string
1549       */
1550  	public static function get_asset_file_version( $relative_path ) {
1551  
1552          $full_path = AKISMET__PLUGIN_DIR . $relative_path;
1553  
1554          // If the AKISMET_VERSION contains a lower-case letter, it's a development version (e.g. 5.3.1a2).
1555          // Use the file modified time in development.
1556          if ( preg_match( '/[a-z]/', AKISMET_VERSION ) && file_exists( $full_path ) ) {
1557              return filemtime( $full_path );
1558          }
1559  
1560          // Otherwise, use the AKISMET_VERSION.
1561          return AKISMET_VERSION;
1562      }
1563  
1564      /**
1565       * Return inline CSS for Akismet admin.
1566       *
1567       * @return string
1568       */
1569  	protected static function get_inline_css(): string {
1570          global $hook_suffix;
1571  
1572          // Hide excess compatible plugins when there are lots.
1573          $inline_css = '
1574              .akismet-compatible-plugins__card:nth-child(n+' . esc_attr( Akismet_Compatible_Plugins::DEFAULT_VISIBLE_PLUGIN_COUNT + 1 ) . ') {
1575                  display: none;
1576              }
1577  
1578              .akismet-compatible-plugins__list.is-expanded .akismet-compatible-plugins__card:nth-child(n+' . esc_attr( Akismet_Compatible_Plugins::DEFAULT_VISIBLE_PLUGIN_COUNT + 1 ) . ') {
1579                  display: flex;
1580              }
1581          ';
1582  
1583          // Enqueue the Akismet activation banner background separately so we can
1584          // include the right path to the image. Shown on edit-comments.php and plugins.php.
1585          if ( in_array( $hook_suffix, self::$activation_banner_pages, true ) ) {
1586              $activation_banner_url = esc_url(
1587                  plugin_dir_url( __FILE__ ) . '_inc/img/akismet-activation-banner-elements.png'
1588              );
1589              $inline_css           .= '.akismet-activate {' . PHP_EOL .
1590                  'background-image: url(' . $activation_banner_url . ');' . PHP_EOL .
1591                  '}';
1592          }
1593  
1594          return $inline_css;
1595      }
1596  }


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