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/wp-includes/ -> user.php (source)

   1  <?php
   2  /**
   3   * Core User API
   4   *
   5   * @package WordPress
   6   * @subpackage Users
   7   */
   8  
   9  /**
  10   * Authenticates and logs a user in with 'remember' capability.
  11   *
  12   * The credentials is an array that has 'user_login', 'user_password', and
  13   * 'remember' indices. If the credentials is not given, then the log in form
  14   * will be assumed and used if set.
  15   *
  16   * The various authentication cookies will be set by this function and will be
  17   * set for a longer period depending on if the 'remember' credential is set to
  18   * true.
  19   *
  20   * Note: wp_signon() doesn't handle setting the current user. This means that if the
  21   * function is called before the {@see 'init'} hook is fired, is_user_logged_in() will
  22   * evaluate as false until that point. If is_user_logged_in() is needed in conjunction
  23   * with wp_signon(), wp_set_current_user() should be called explicitly.
  24   *
  25   * @since 2.5.0
  26   *
  27   * @global string $auth_secure_cookie
  28   * @global wpdb   $wpdb               WordPress database abstraction object.
  29   *
  30   * @param array       $credentials {
  31   *     Optional. User info in order to sign on.
  32   *
  33   *     @type string $user_login    Username.
  34   *     @type string $user_password User password.
  35   *     @type bool   $remember      Whether to 'remember' the user. Increases the time
  36   *                                 that the cookie will be kept. Default false.
  37   * }
  38   * @param string|bool $secure_cookie Optional. Whether to use secure cookie.
  39   * @return WP_User|WP_Error WP_User on success, WP_Error on failure.
  40   */
  41  function wp_signon( $credentials = array(), $secure_cookie = '' ) {
  42      global $auth_secure_cookie, $wpdb;
  43  
  44      if ( empty( $credentials ) ) {
  45          $credentials = array(
  46              'user_login'    => '',
  47              'user_password' => '',
  48              'remember'      => false,
  49          );
  50  
  51          if ( ! empty( $_POST['log'] ) && is_string( $_POST['log'] ) ) {
  52              $credentials['user_login'] = wp_unslash( $_POST['log'] );
  53          }
  54          if ( ! empty( $_POST['pwd'] ) && is_string( $_POST['pwd'] ) ) {
  55              $credentials['user_password'] = $_POST['pwd'];
  56          }
  57          if ( ! empty( $_POST['rememberme'] ) ) {
  58              $credentials['remember'] = $_POST['rememberme'];
  59          }
  60      }
  61  
  62      if ( ! empty( $credentials['remember'] ) ) {
  63          $credentials['remember'] = true;
  64      } else {
  65          $credentials['remember'] = false;
  66      }
  67  
  68      /**
  69       * Fires before the user is authenticated.
  70       *
  71       * The variables passed to the callbacks are passed by reference,
  72       * and can be modified by callback functions.
  73       *
  74       * @since 1.5.1
  75       *
  76       * @todo Decide whether to deprecate the wp_authenticate action.
  77       *
  78       * @param string $user_login    Username (passed by reference).
  79       * @param string $user_password User password (passed by reference).
  80       */
  81      do_action_ref_array( 'wp_authenticate', array( &$credentials['user_login'], &$credentials['user_password'] ) );
  82  
  83      if ( '' === $secure_cookie ) {
  84          $secure_cookie = is_ssl();
  85      }
  86  
  87      /**
  88       * Filters whether to use a secure sign-on cookie.
  89       *
  90       * @since 3.1.0
  91       *
  92       * @param bool  $secure_cookie Whether to use a secure sign-on cookie.
  93       * @param array $credentials {
  94       *     Array of entered sign-on data.
  95       *
  96       *     @type string $user_login    Username.
  97       *     @type string $user_password Password entered.
  98       *     @type bool   $remember      Whether to 'remember' the user. Increases the time
  99       *                                 that the cookie will be kept. Default false.
 100       * }
 101       */
 102      $secure_cookie = apply_filters( 'secure_signon_cookie', $secure_cookie, $credentials );
 103  
 104      // XXX ugly hack to pass this to wp_authenticate_cookie().
 105      $auth_secure_cookie = $secure_cookie;
 106  
 107      add_filter( 'authenticate', 'wp_authenticate_cookie', 30, 3 );
 108  
 109      $user = wp_authenticate( $credentials['user_login'], $credentials['user_password'] );
 110  
 111      if ( is_wp_error( $user ) ) {
 112          return $user;
 113      }
 114  
 115      wp_set_auth_cookie( $user->ID, $credentials['remember'], $secure_cookie );
 116  
 117      // Clear `user_activation_key` after a successful login.
 118      if ( ! empty( $user->user_activation_key ) ) {
 119          $wpdb->update(
 120              $wpdb->users,
 121              array(
 122                  'user_activation_key' => '',
 123              ),
 124              array( 'ID' => $user->ID )
 125          );
 126  
 127          $user->user_activation_key = '';
 128      }
 129  
 130      /**
 131       * Fires after the user has successfully logged in.
 132       *
 133       * @since 1.5.0
 134       *
 135       * @param string  $user_login Username.
 136       * @param WP_User $user       WP_User object of the logged-in user.
 137       */
 138      do_action( 'wp_login', $user->user_login, $user );
 139  
 140      return $user;
 141  }
 142  
 143  /**
 144   * Authenticates a user, confirming the username and password are valid.
 145   *
 146   * @since 2.8.0
 147   *
 148   * @param WP_User|WP_Error|null $user     WP_User or WP_Error object from a previous callback. Default null.
 149   * @param string                $username Username for authentication.
 150   * @param string                $password Password for authentication.
 151   * @return WP_User|WP_Error WP_User on success, WP_Error on failure.
 152   */
 153  function wp_authenticate_username_password(
 154      $user,
 155      $username,
 156      #[\SensitiveParameter]
 157      $password
 158  ) {
 159      if ( $user instanceof WP_User ) {
 160          return $user;
 161      }
 162  
 163      if ( empty( $username ) || empty( $password ) ) {
 164          if ( is_wp_error( $user ) ) {
 165              return $user;
 166          }
 167  
 168          $error = new WP_Error();
 169  
 170          if ( empty( $username ) ) {
 171              $error->add( 'empty_username', __( '<strong>Error:</strong> The username field is empty.' ) );
 172          }
 173  
 174          if ( empty( $password ) ) {
 175              $error->add( 'empty_password', __( '<strong>Error:</strong> The password field is empty.' ) );
 176          }
 177  
 178          return $error;
 179      }
 180  
 181      $user = get_user_by( 'login', $username );
 182  
 183      if ( ! $user ) {
 184          return new WP_Error(
 185              'invalid_username',
 186              sprintf(
 187                  /* translators: %s: User name. */
 188                  __( '<strong>Error:</strong> The username <strong>%s</strong> is not registered on this site. If you are unsure of your username, try your email address instead.' ),
 189                  $username
 190              )
 191          );
 192      }
 193  
 194      /**
 195       * Filters whether the given user can be authenticated with the provided password.
 196       *
 197       * @since 2.5.0
 198       *
 199       * @param WP_User|WP_Error $user     WP_User or WP_Error object if a previous
 200       *                                   callback failed authentication.
 201       * @param string           $password Password to check against the user.
 202       */
 203      $user = apply_filters( 'wp_authenticate_user', $user, $password );
 204      if ( is_wp_error( $user ) ) {
 205          return $user;
 206      }
 207  
 208      $valid = wp_check_password( $password, $user->user_pass, $user->ID );
 209  
 210      if ( ! $valid ) {
 211          return new WP_Error(
 212              'incorrect_password',
 213              sprintf(
 214                  /* translators: %s: User name. */
 215                  __( '<strong>Error:</strong> The password you entered for the username %s is incorrect.' ),
 216                  '<strong>' . $username . '</strong>'
 217              ) .
 218              ' <a href="' . wp_lostpassword_url() . '">' .
 219              __( 'Lost your password?' ) .
 220              '</a>'
 221          );
 222      }
 223  
 224      if ( wp_password_needs_rehash( $user->user_pass, $user->ID ) ) {
 225          wp_set_password( $password, $user->ID );
 226      }
 227  
 228      return $user;
 229  }
 230  
 231  /**
 232   * Authenticates a user using the email and password.
 233   *
 234   * @since 4.5.0
 235   *
 236   * @param WP_User|WP_Error|null $user     WP_User or WP_Error object if a previous
 237   *                                        callback failed authentication.
 238   * @param string                $email    Email address for authentication.
 239   * @param string                $password Password for authentication.
 240   * @return WP_User|WP_Error WP_User on success, WP_Error on failure.
 241   */
 242  function wp_authenticate_email_password(
 243      $user,
 244      $email,
 245      #[\SensitiveParameter]
 246      $password
 247  ) {
 248      if ( $user instanceof WP_User ) {
 249          return $user;
 250      }
 251  
 252      if ( empty( $email ) || empty( $password ) ) {
 253          if ( is_wp_error( $user ) ) {
 254              return $user;
 255          }
 256  
 257          $error = new WP_Error();
 258  
 259          if ( empty( $email ) ) {
 260              // Uses 'empty_username' for back-compat with wp_signon().
 261              $error->add( 'empty_username', __( '<strong>Error:</strong> The email field is empty.' ) );
 262          }
 263  
 264          if ( empty( $password ) ) {
 265              $error->add( 'empty_password', __( '<strong>Error:</strong> The password field is empty.' ) );
 266          }
 267  
 268          return $error;
 269      }
 270  
 271      if ( ! is_email( $email ) ) {
 272          return $user;
 273      }
 274  
 275      $user = get_user_by( 'email', $email );
 276  
 277      if ( ! $user ) {
 278          return new WP_Error(
 279              'invalid_email',
 280              __( 'Unknown email address. Check again or try your username.' )
 281          );
 282      }
 283  
 284      /** This filter is documented in wp-includes/user.php */
 285      $user = apply_filters( 'wp_authenticate_user', $user, $password );
 286  
 287      if ( is_wp_error( $user ) ) {
 288          return $user;
 289      }
 290  
 291      $valid = wp_check_password( $password, $user->user_pass, $user->ID );
 292  
 293      if ( ! $valid ) {
 294          return new WP_Error(
 295              'incorrect_password',
 296              sprintf(
 297                  /* translators: %s: Email address. */
 298                  __( '<strong>Error:</strong> The password you entered for the email address %s is incorrect.' ),
 299                  '<strong>' . $email . '</strong>'
 300              ) .
 301              ' <a href="' . wp_lostpassword_url() . '">' .
 302              __( 'Lost your password?' ) .
 303              '</a>'
 304          );
 305      }
 306  
 307      if ( wp_password_needs_rehash( $user->user_pass, $user->ID ) ) {
 308          wp_set_password( $password, $user->ID );
 309      }
 310  
 311      return $user;
 312  }
 313  
 314  /**
 315   * Authenticates the user using the WordPress auth cookie.
 316   *
 317   * @since 2.8.0
 318   *
 319   * @global string $auth_secure_cookie
 320   *
 321   * @param WP_User|WP_Error|null $user     WP_User or WP_Error object from a previous callback. Default null.
 322   * @param string                $username Username. If not empty, cancels the cookie authentication.
 323   * @param string                $password Password. If not empty, cancels the cookie authentication.
 324   * @return WP_User|WP_Error WP_User on success, WP_Error on failure.
 325   */
 326  function wp_authenticate_cookie(
 327      $user,
 328      $username,
 329      #[\SensitiveParameter]
 330      $password
 331  ) {
 332      global $auth_secure_cookie;
 333  
 334      if ( $user instanceof WP_User ) {
 335          return $user;
 336      }
 337  
 338      if ( empty( $username ) && empty( $password ) ) {
 339          $user_id = wp_validate_auth_cookie();
 340          if ( $user_id ) {
 341              return new WP_User( $user_id );
 342          }
 343  
 344          if ( $auth_secure_cookie ) {
 345              $auth_cookie = SECURE_AUTH_COOKIE;
 346          } else {
 347              $auth_cookie = AUTH_COOKIE;
 348          }
 349  
 350          if ( ! empty( $_COOKIE[ $auth_cookie ] ) ) {
 351              return new WP_Error( 'expired_session', __( 'Please log in again.' ) );
 352          }
 353  
 354          // If the cookie is not set, be silent.
 355      }
 356  
 357      return $user;
 358  }
 359  
 360  /**
 361   * Authenticates the user using an application password.
 362   *
 363   * @since 5.6.0
 364   *
 365   * @param WP_User|WP_Error|null $input_user WP_User or WP_Error object if a previous
 366   *                                          callback failed authentication.
 367   * @param string                $username   Username for authentication.
 368   * @param string                $password   Password for authentication.
 369   * @return WP_User|WP_Error|null WP_User on success, WP_Error on failure, null if
 370   *                               null is passed in and this isn't an API request.
 371   */
 372  function wp_authenticate_application_password(
 373      $input_user,
 374      $username,
 375      #[\SensitiveParameter]
 376      $password
 377  ) {
 378      if ( $input_user instanceof WP_User ) {
 379          return $input_user;
 380      }
 381  
 382      if ( ! WP_Application_Passwords::is_in_use() ) {
 383          return $input_user;
 384      }
 385  
 386      // The 'REST_REQUEST' check here may happen too early for the constant to be available.
 387      $is_api_request = ( ( defined( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST ) || ( defined( 'REST_REQUEST' ) && REST_REQUEST ) );
 388  
 389      /**
 390       * Filters whether this is an API request that Application Passwords can be used on.
 391       *
 392       * By default, Application Passwords is available for the REST API and XML-RPC.
 393       *
 394       * @since 5.6.0
 395       *
 396       * @param bool $is_api_request If this is an acceptable API request.
 397       */
 398      $is_api_request = apply_filters( 'application_password_is_api_request', $is_api_request );
 399  
 400      if ( ! $is_api_request ) {
 401          return $input_user;
 402      }
 403  
 404      $error = null;
 405      $user  = get_user_by( 'login', $username );
 406  
 407      if ( ! $user && is_email( $username ) ) {
 408          $user = get_user_by( 'email', $username );
 409      }
 410  
 411      // If the login name is invalid, short circuit.
 412      if ( ! $user ) {
 413          if ( is_email( $username ) ) {
 414              $error = new WP_Error(
 415                  'invalid_email',
 416                  __( '<strong>Error:</strong> Unknown email address. Check again or try your username.' )
 417              );
 418          } else {
 419              $error = new WP_Error(
 420                  'invalid_username',
 421                  __( '<strong>Error:</strong> Unknown username. Check again or try your email address.' )
 422              );
 423          }
 424      } elseif ( ! wp_is_application_passwords_available() ) {
 425          $error = new WP_Error(
 426              'application_passwords_disabled',
 427              __( 'Application passwords are not available.' )
 428          );
 429      } elseif ( ! wp_is_application_passwords_available_for_user( $user ) ) {
 430          $error = new WP_Error(
 431              'application_passwords_disabled_for_user',
 432              __( 'Application passwords are not available for your account. Please contact the site administrator for assistance.' )
 433          );
 434      }
 435  
 436      if ( $error ) {
 437          /**
 438           * Fires when an application password failed to authenticate the user.
 439           *
 440           * @since 5.6.0
 441           *
 442           * @param WP_Error $error The authentication error.
 443           */
 444          do_action( 'application_password_failed_authentication', $error );
 445  
 446          return $error;
 447      }
 448  
 449      /*
 450       * Strips out anything non-alphanumeric. This is so passwords can be used with
 451       * or without spaces to indicate the groupings for readability.
 452       *
 453       * Generated application passwords are exclusively alphanumeric.
 454       */
 455      $password = preg_replace( '/[^a-z\d]/i', '', $password );
 456  
 457      $hashed_passwords = WP_Application_Passwords::get_user_application_passwords( $user->ID );
 458  
 459      foreach ( $hashed_passwords as $key => $item ) {
 460          if ( ! WP_Application_Passwords::check_password( $password, $item['password'] ) ) {
 461              continue;
 462          }
 463  
 464          $error = new WP_Error();
 465  
 466          /**
 467           * Fires when an application password has been successfully checked as valid.
 468           *
 469           * This allows for plugins to add additional constraints to prevent an application password from being used.
 470           *
 471           * @since 5.6.0
 472           *
 473           * @param WP_Error $error    The error object.
 474           * @param WP_User  $user     The user authenticating.
 475           * @param array    $item     The details about the application password.
 476           * @param string   $password The raw supplied password.
 477           */
 478          do_action( 'wp_authenticate_application_password_errors', $error, $user, $item, $password );
 479  
 480          if ( $error->has_errors() ) {
 481              /** This action is documented in wp-includes/user.php */
 482              do_action( 'application_password_failed_authentication', $error );
 483  
 484              return $error;
 485          }
 486  
 487          WP_Application_Passwords::record_application_password_usage( $user->ID, $item['uuid'] );
 488  
 489          /**
 490           * Fires after an application password was used for authentication.
 491           *
 492           * @since 5.6.0
 493           *
 494           * @param WP_User $user The user who was authenticated.
 495           * @param array   $item The application password used.
 496           */
 497          do_action( 'application_password_did_authenticate', $user, $item );
 498  
 499          return $user;
 500      }
 501  
 502      $error = new WP_Error(
 503          'incorrect_password',
 504          __( 'The provided password is an invalid application password.' )
 505      );
 506  
 507      /** This action is documented in wp-includes/user.php */
 508      do_action( 'application_password_failed_authentication', $error );
 509  
 510      return $error;
 511  }
 512  
 513  /**
 514   * Validates the application password credentials passed via Basic Authentication.
 515   *
 516   * @since 5.6.0
 517   *
 518   * @param int|false $input_user User ID if one has been determined, false otherwise.
 519   * @return int|false The authenticated user ID if successful, false otherwise.
 520   */
 521  function wp_validate_application_password( $input_user ) {
 522      // Don't authenticate twice.
 523      if ( ! empty( $input_user ) ) {
 524          return $input_user;
 525      }
 526  
 527      if ( ! wp_is_application_passwords_available() ) {
 528          return $input_user;
 529      }
 530  
 531      // Both $_SERVER['PHP_AUTH_USER'] and $_SERVER['PHP_AUTH_PW'] must be set in order to attempt authentication.
 532      if ( ! isset( $_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW'] ) ) {
 533          return $input_user;
 534      }
 535  
 536      $authenticated = wp_authenticate_application_password( null, $_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW'] );
 537  
 538      if ( $authenticated instanceof WP_User ) {
 539          return $authenticated->ID;
 540      }
 541  
 542      // If it wasn't a user what got returned, just pass on what we had received originally.
 543      return $input_user;
 544  }
 545  
 546  /**
 547   * For Multisite blogs, checks if the authenticated user has been marked as a
 548   * spammer, or if the user's primary blog has been marked as spam.
 549   *
 550   * @since 3.7.0
 551   *
 552   * @param WP_User|WP_Error|null $user WP_User or WP_Error object from a previous callback. Default null.
 553   * @return WP_User|WP_Error WP_User on success, WP_Error if the user is considered a spammer.
 554   */
 555  function wp_authenticate_spam_check( $user ) {
 556      if ( $user instanceof WP_User && is_multisite() ) {
 557          /**
 558           * Filters whether the user has been marked as a spammer.
 559           *
 560           * @since 3.7.0
 561           *
 562           * @param bool    $spammed Whether the user is considered a spammer.
 563           * @param WP_User $user    User to check against.
 564           */
 565          $spammed = apply_filters( 'check_is_user_spammed', is_user_spammy( $user ), $user );
 566  
 567          if ( $spammed ) {
 568              return new WP_Error( 'spammer_account', __( '<strong>Error:</strong> Your account has been marked as a spammer.' ) );
 569          }
 570      }
 571      return $user;
 572  }
 573  
 574  /**
 575   * Validates the logged-in cookie.
 576   *
 577   * Checks the logged-in cookie if the previous auth cookie could not be
 578   * validated and parsed.
 579   *
 580   * This is a callback for the {@see 'determine_current_user'} filter, rather than API.
 581   *
 582   * @since 3.9.0
 583   *
 584   * @param int|false $user_id The user ID (or false) as received from
 585   *                           the `determine_current_user` filter.
 586   * @return int|false User ID if validated, false otherwise. If a user ID from
 587   *                   an earlier filter callback is received, that value is returned.
 588   */
 589  function wp_validate_logged_in_cookie( $user_id ) {
 590      if ( $user_id ) {
 591          return $user_id;
 592      }
 593  
 594      if ( is_blog_admin() || is_network_admin() || empty( $_COOKIE[ LOGGED_IN_COOKIE ] ) ) {
 595          return false;
 596      }
 597  
 598      return wp_validate_auth_cookie( $_COOKIE[ LOGGED_IN_COOKIE ], 'logged_in' );
 599  }
 600  
 601  /**
 602   * Gets the number of posts a user has written.
 603   *
 604   * @since 3.0.0
 605   * @since 4.1.0 Added `$post_type` argument.
 606   * @since 4.3.0 Added `$public_only` argument. Added the ability to pass an array
 607   *              of post types to `$post_type`.
 608   *
 609   * @global wpdb $wpdb WordPress database abstraction object.
 610   *
 611   * @param int          $userid      User ID.
 612   * @param array|string $post_type   Optional. Single post type or array of post types to count the number of posts for. Default 'post'.
 613   * @param bool         $public_only Optional. Whether to only return counts for public posts. Default false.
 614   * @return string Number of posts the user has written in this post type.
 615   */
 616  function count_user_posts( $userid, $post_type = 'post', $public_only = false ) {
 617      global $wpdb;
 618  
 619      $post_type = array_unique( (array) $post_type );
 620      sort( $post_type );
 621  
 622      $where = get_posts_by_author_sql( $post_type, true, $userid, $public_only );
 623      $query = "SELECT COUNT(*) FROM $wpdb->posts $where";
 624  
 625      $last_changed = wp_cache_get_last_changed( 'posts' );
 626      $cache_key    = 'count_user_posts:' . md5( $query );
 627      $count        = wp_cache_get_salted( $cache_key, 'post-queries', $last_changed );
 628      if ( false === $count ) {
 629          $count = $wpdb->get_var( $query );
 630          wp_cache_set_salted( $cache_key, $count, 'post-queries', $last_changed );
 631      }
 632  
 633      /**
 634       * Filters the number of posts a user has written.
 635       *
 636       * @since 2.7.0
 637       * @since 4.1.0 Added `$post_type` argument.
 638       * @since 4.3.1 Added `$public_only` argument.
 639       *
 640       * @param string       $count       The user's post count as a numeric string.
 641       * @param int          $userid      User ID.
 642       * @param string|array $post_type   Single post type or array of post types to count the number of posts for.
 643       * @param bool         $public_only Whether to limit counted posts to public posts.
 644       */
 645      return apply_filters( 'get_usernumposts', $count, $userid, $post_type, $public_only );
 646  }
 647  
 648  /**
 649   * Gets the number of posts written by a list of users.
 650   *
 651   * @since 3.0.0
 652   * @since 6.9.0 The results are now cached.
 653   *
 654   * @global wpdb $wpdb WordPress database abstraction object.
 655   *
 656   * @param int[]           $users       Array of user IDs.
 657   * @param string|string[] $post_type   Optional. Single post type or array of post types to check. Defaults to 'post'.
 658   * @param bool            $public_only Optional. Only return counts for public posts.  Defaults to false.
 659   * @return array<int, string> Amount of posts each user has written, as strings, keyed by user ID.
 660   */
 661  function count_many_users_posts( $users, $post_type = 'post', $public_only = false ) {
 662      global $wpdb;
 663  
 664      if ( empty( $users ) || ! is_array( $users ) ) {
 665          return array();
 666      }
 667  
 668      /**
 669       * Filters whether to short-circuit performing the post counts.
 670       *
 671       * When filtering, return an array of posts counts as strings, keyed
 672       * by the user ID.
 673       *
 674       * @since 6.8.0
 675       *
 676       * @param string[]|null   $count       The post counts. Return a non-null value to short-circuit.
 677       * @param int[]           $users       Array of user IDs.
 678       * @param string|string[] $post_type   Single post type or array of post types to check.
 679       * @param bool            $public_only Whether to only return counts for public posts.
 680       */
 681      $pre = apply_filters( 'pre_count_many_users_posts', null, $users, $post_type, $public_only );
 682      if ( null !== $pre ) {
 683          return $pre;
 684      }
 685  
 686      // Cleanup the users array. Remove duplicates and sort for consistent ordering.
 687      $users = array_unique( array_filter( array_map( 'intval', $users ) ) );
 688      sort( $users );
 689  
 690      // Cleanup the post type argument. Remove duplicates and sort for consistent ordering.
 691      $post_type = array_unique( (array) $post_type );
 692      sort( $post_type );
 693  
 694      $userlist    = implode( ',', $users );
 695      $where       = get_posts_by_author_sql( $post_type, true, null, $public_only );
 696      $query       = "SELECT post_author, COUNT(*) FROM $wpdb->posts $where AND post_author IN ($userlist) GROUP BY post_author";
 697      $cache_key   = 'count_many_users_posts:' . md5( $query );
 698      $cache_salts = array( wp_cache_get_last_changed( 'posts' ), wp_cache_get_last_changed( 'users' ) );
 699      $count       = wp_cache_get_salted( $cache_key, 'post-queries', $cache_salts );
 700  
 701      if ( false === $count ) {
 702          $result = $wpdb->get_results( $query, ARRAY_N );
 703  
 704          $count = array_fill_keys( $users, 0 );
 705          foreach ( $result as $row ) {
 706              $count[ $row[0] ] = $row[1];
 707          }
 708  
 709          wp_cache_set_salted( $cache_key, $count, 'post-queries', $cache_salts, HOUR_IN_SECONDS );
 710      }
 711  
 712      return $count;
 713  }
 714  
 715  //
 716  // User option functions.
 717  //
 718  
 719  /**
 720   * Gets the current user's ID.
 721   *
 722   * @since MU (3.0.0)
 723   *
 724   * @return int The current user's ID, or 0 if no user is logged in.
 725   */
 726  function get_current_user_id() {
 727      if ( ! function_exists( 'wp_get_current_user' ) ) {
 728          return 0;
 729      }
 730      $user = wp_get_current_user();
 731      return ( isset( $user->ID ) ? (int) $user->ID : 0 );
 732  }
 733  
 734  /**
 735   * Retrieves user option that can be either per Site or per Network.
 736   *
 737   * If the user ID is not given, then the current user will be used instead. If
 738   * the user ID is given, then the user data will be retrieved. The filter for
 739   * the result, will also pass the original option name and finally the user data
 740   * object as the third parameter.
 741   *
 742   * The option will first check for the per site name and then the per Network name.
 743   *
 744   * @since 2.0.0
 745   *
 746   * @global wpdb $wpdb WordPress database abstraction object.
 747   *
 748   * @param string $option     User option name.
 749   * @param int    $user       Optional. User ID.
 750   * @param string $deprecated Use get_option() to check for an option in the options table.
 751   * @return mixed User option value on success, false on failure.
 752   */
 753  function get_user_option( $option, $user = 0, $deprecated = '' ) {
 754      global $wpdb;
 755  
 756      if ( ! empty( $deprecated ) ) {
 757          _deprecated_argument( __FUNCTION__, '3.0.0' );
 758      }
 759  
 760      if ( empty( $user ) ) {
 761          $user = get_current_user_id();
 762      }
 763  
 764      $user = get_userdata( $user );
 765      if ( ! $user ) {
 766          return false;
 767      }
 768  
 769      $prefix = $wpdb->get_blog_prefix();
 770      if ( $user->has_prop( $prefix . $option ) ) { // Blog-specific.
 771          $result = $user->get( $prefix . $option );
 772      } elseif ( $user->has_prop( $option ) ) { // User-specific and cross-blog.
 773          $result = $user->get( $option );
 774      } else {
 775          $result = false;
 776      }
 777  
 778      /**
 779       * Filters a specific user option value.
 780       *
 781       * The dynamic portion of the hook name, `$option`, refers to the user option name.
 782       *
 783       * @since 2.5.0
 784       *
 785       * @param mixed   $result Value for the user's option.
 786       * @param string  $option Name of the option being retrieved.
 787       * @param WP_User $user   WP_User object of the user whose option is being retrieved.
 788       */
 789      return apply_filters( "get_user_option_{$option}", $result, $option, $user );
 790  }
 791  
 792  /**
 793   * Updates user option with global blog capability.
 794   *
 795   * User options are just like user metadata except that they have support for
 796   * global blog options. If the 'is_global' parameter is false, which it is by default,
 797   * it will prepend the WordPress table prefix to the option name.
 798   *
 799   * Deletes the user option if $newvalue is empty.
 800   *
 801   * @since 2.0.0
 802   *
 803   * @global wpdb $wpdb WordPress database abstraction object.
 804   *
 805   * @param int    $user_id     User ID.
 806   * @param string $option_name User option name.
 807   * @param mixed  $newvalue    User option value.
 808   * @param bool   $is_global   Optional. Whether option name is global or blog specific.
 809   *                            Default false (blog specific).
 810   * @return int|bool User meta ID if the option didn't exist, true on successful update,
 811   *                  false on failure.
 812   */
 813  function update_user_option( $user_id, $option_name, $newvalue, $is_global = false ) {
 814      global $wpdb;
 815  
 816      if ( ! $is_global ) {
 817          $option_name = $wpdb->get_blog_prefix() . $option_name;
 818      }
 819  
 820      return update_user_meta( $user_id, $option_name, $newvalue );
 821  }
 822  
 823  /**
 824   * Deletes user option with global blog capability.
 825   *
 826   * User options are just like user metadata except that they have support for
 827   * global blog options. If the 'is_global' parameter is false, which it is by default,
 828   * it will prepend the WordPress table prefix to the option name.
 829   *
 830   * @since 3.0.0
 831   *
 832   * @global wpdb $wpdb WordPress database abstraction object.
 833   *
 834   * @param int    $user_id     User ID
 835   * @param string $option_name User option name.
 836   * @param bool   $is_global   Optional. Whether option name is global or blog specific.
 837   *                            Default false (blog specific).
 838   * @return bool True on success, false on failure.
 839   */
 840  function delete_user_option( $user_id, $option_name, $is_global = false ) {
 841      global $wpdb;
 842  
 843      if ( ! $is_global ) {
 844          $option_name = $wpdb->get_blog_prefix() . $option_name;
 845      }
 846  
 847      return delete_user_meta( $user_id, $option_name );
 848  }
 849  
 850  /**
 851   * Retrieves user info by user ID.
 852   *
 853   * @since 6.7.0
 854   *
 855   * @param int $user_id User ID.
 856   *
 857   * @return WP_User|false WP_User object on success, false on failure.
 858   */
 859  function get_user( $user_id ) {
 860      return get_user_by( 'id', $user_id );
 861  }
 862  
 863  /**
 864   * Retrieves list of users matching criteria.
 865   *
 866   * @since 3.1.0
 867   *
 868   * @see WP_User_Query
 869   *
 870   * @param array $args Optional. Arguments to retrieve users. See WP_User_Query::prepare_query()
 871   *                    for more information on accepted arguments.
 872   * @return array List of users.
 873   */
 874  function get_users( $args = array() ) {
 875  
 876      $args                = wp_parse_args( $args );
 877      $args['count_total'] = false;
 878  
 879      $user_search = new WP_User_Query( $args );
 880  
 881      return (array) $user_search->get_results();
 882  }
 883  
 884  /**
 885   * Lists all the users of the site, with several options available.
 886   *
 887   * @since 5.9.0
 888   *
 889   * @param string|array $args {
 890   *     Optional. Array or string of default arguments.
 891   *
 892   *     @type string $orderby       How to sort the users. Accepts 'nicename', 'email', 'url', 'registered',
 893   *                                 'user_nicename', 'user_email', 'user_url', 'user_registered', 'name',
 894   *                                 'display_name', 'post_count', 'ID', 'meta_value', 'user_login'. Default 'name'.
 895   *     @type string $order         Sorting direction for $orderby. Accepts 'ASC', 'DESC'. Default 'ASC'.
 896   *     @type int    $number        Maximum users to return or display. Default empty (all users).
 897   *     @type bool   $exclude_admin Whether to exclude the 'admin' account, if it exists. Default false.
 898   *     @type bool   $show_fullname Whether to show the user's full name. Default false.
 899   *     @type string $feed          If not empty, show a link to the user's feed and use this text as the alt
 900   *                                 parameter of the link. Default empty.
 901   *     @type string $feed_image    If not empty, show a link to the user's feed and use this image URL as
 902   *                                 clickable anchor. Default empty.
 903   *     @type string $feed_type     The feed type to link to, such as 'rss2'. Defaults to default feed type.
 904   *     @type bool   $echo          Whether to output the result or instead return it. Default true.
 905   *     @type string $style         If 'list', each user is wrapped in an `<li>` element, otherwise the users
 906   *                                 will be separated by commas.
 907   *     @type bool   $html          Whether to list the items in HTML form or plaintext. Default true.
 908   *     @type string $exclude       An array, comma-, or space-separated list of user IDs to exclude. Default empty.
 909   *     @type string $include       An array, comma-, or space-separated list of user IDs to include. Default empty.
 910   * }
 911   * @return string|null The output if echo is false. Otherwise null.
 912   */
 913  function wp_list_users( $args = array() ) {
 914      $defaults = array(
 915          'orderby'       => 'name',
 916          'order'         => 'ASC',
 917          'number'        => '',
 918          'exclude_admin' => true,
 919          'show_fullname' => false,
 920          'feed'          => '',
 921          'feed_image'    => '',
 922          'feed_type'     => '',
 923          'echo'          => true,
 924          'style'         => 'list',
 925          'html'          => true,
 926          'exclude'       => '',
 927          'include'       => '',
 928      );
 929  
 930      $parsed_args = wp_parse_args( $args, $defaults );
 931  
 932      $return = '';
 933  
 934      $query_args           = wp_array_slice_assoc( $parsed_args, array( 'orderby', 'order', 'number', 'exclude', 'include' ) );
 935      $query_args['fields'] = 'ids';
 936  
 937      /**
 938       * Filters the query arguments for the list of all users of the site.
 939       *
 940       * @since 6.1.0
 941       *
 942       * @param array $query_args  The query arguments for get_users().
 943       * @param array $parsed_args The arguments passed to wp_list_users() combined with the defaults.
 944       */
 945      $query_args = apply_filters( 'wp_list_users_args', $query_args, $parsed_args );
 946  
 947      $users = get_users( $query_args );
 948  
 949      foreach ( $users as $user_id ) {
 950          $user = get_userdata( $user_id );
 951  
 952          if ( $parsed_args['exclude_admin'] && 'admin' === $user->display_name ) {
 953              continue;
 954          }
 955  
 956          if ( $parsed_args['show_fullname'] && '' !== $user->first_name && '' !== $user->last_name ) {
 957              $name = sprintf(
 958                  /* translators: 1: User's first name, 2: Last name. */
 959                  _x( '%1$s %2$s', 'Display name based on first name and last name' ),
 960                  $user->first_name,
 961                  $user->last_name
 962              );
 963          } else {
 964              $name = $user->display_name;
 965          }
 966  
 967          if ( ! $parsed_args['html'] ) {
 968              $return .= $name . ', ';
 969  
 970              continue; // No need to go further to process HTML.
 971          }
 972  
 973          if ( 'list' === $parsed_args['style'] ) {
 974              $return .= '<li>';
 975          }
 976  
 977          $row = $name;
 978  
 979          if ( ! empty( $parsed_args['feed_image'] ) || ! empty( $parsed_args['feed'] ) ) {
 980              $row .= ' ';
 981              if ( empty( $parsed_args['feed_image'] ) ) {
 982                  $row .= '(';
 983              }
 984  
 985              $row .= '<a href="' . get_author_feed_link( $user->ID, $parsed_args['feed_type'] ) . '"';
 986  
 987              $alt = '';
 988              if ( ! empty( $parsed_args['feed'] ) ) {
 989                  $alt  = ' alt="' . esc_attr( $parsed_args['feed'] ) . '"';
 990                  $name = $parsed_args['feed'];
 991              }
 992  
 993              $row .= '>';
 994  
 995              if ( ! empty( $parsed_args['feed_image'] ) ) {
 996                  $row .= '<img src="' . esc_url( $parsed_args['feed_image'] ) . '" style="border: none;"' . $alt . ' />';
 997              } else {
 998                  $row .= $name;
 999              }
1000  
1001              $row .= '</a>';
1002  
1003              if ( empty( $parsed_args['feed_image'] ) ) {
1004                  $row .= ')';
1005              }
1006          }
1007  
1008          $return .= $row;
1009          $return .= ( 'list' === $parsed_args['style'] ) ? '</li>' : ', ';
1010      }
1011  
1012      $return = rtrim( $return, ', ' );
1013  
1014      if ( ! $parsed_args['echo'] ) {
1015          return $return;
1016      }
1017      echo $return;
1018  }
1019  
1020  /**
1021   * Gets the sites a user belongs to.
1022   *
1023   * @since 3.0.0
1024   * @since 4.7.0 Converted to use `get_sites()`.
1025   *
1026   * @global wpdb $wpdb WordPress database abstraction object.
1027   *
1028   * @param int  $user_id User ID
1029   * @param bool $all     Whether to retrieve all sites, or only sites that are not
1030   *                      marked as deleted, archived, or spam.
1031   * @return object[] A list of the user's sites. An empty array if the user doesn't exist
1032   *                  or belongs to no sites.
1033   */
1034  function get_blogs_of_user( $user_id, $all = false ) {
1035      global $wpdb;
1036  
1037      $user_id = (int) $user_id;
1038  
1039      // Logged out users can't have sites.
1040      if ( empty( $user_id ) ) {
1041          return array();
1042      }
1043  
1044      /**
1045       * Filters the list of a user's sites before it is populated.
1046       *
1047       * Returning a non-null value from the filter will effectively short circuit
1048       * get_blogs_of_user(), returning that value instead.
1049       *
1050       * @since 4.6.0
1051       *
1052       * @param null|object[] $sites   An array of site objects of which the user is a member.
1053       * @param int           $user_id User ID.
1054       * @param bool          $all     Whether the returned array should contain all sites, including
1055       *                               those marked 'deleted', 'archived', or 'spam'. Default false.
1056       */
1057      $sites = apply_filters( 'pre_get_blogs_of_user', null, $user_id, $all );
1058  
1059      if ( null !== $sites ) {
1060          return $sites;
1061      }
1062  
1063      $keys = get_user_meta( $user_id );
1064      if ( empty( $keys ) ) {
1065          return array();
1066      }
1067  
1068      if ( ! is_multisite() ) {
1069          $site_id                        = get_current_blog_id();
1070          $sites                          = array( $site_id => new stdClass() );
1071          $sites[ $site_id ]->userblog_id = $site_id;
1072          $sites[ $site_id ]->blogname    = get_option( 'blogname' );
1073          $sites[ $site_id ]->domain      = '';
1074          $sites[ $site_id ]->path        = '';
1075          $sites[ $site_id ]->site_id     = 1;
1076          $sites[ $site_id ]->siteurl     = get_option( 'siteurl' );
1077          $sites[ $site_id ]->archived    = 0;
1078          $sites[ $site_id ]->spam        = 0;
1079          $sites[ $site_id ]->deleted     = 0;
1080          return $sites;
1081      }
1082  
1083      $site_ids = array();
1084  
1085      if ( isset( $keys[ $wpdb->base_prefix . 'capabilities' ] ) && defined( 'MULTISITE' ) ) {
1086          $site_ids[] = 1;
1087          unset( $keys[ $wpdb->base_prefix . 'capabilities' ] );
1088      }
1089  
1090      $keys = array_keys( $keys );
1091  
1092      foreach ( $keys as $key ) {
1093          if ( ! str_ends_with( $key, 'capabilities' ) ) {
1094              continue;
1095          }
1096          if ( $wpdb->base_prefix && ! str_starts_with( $key, $wpdb->base_prefix ) ) {
1097              continue;
1098          }
1099          $site_id = str_replace( array( $wpdb->base_prefix, '_capabilities' ), '', $key );
1100          if ( ! is_numeric( $site_id ) ) {
1101              continue;
1102          }
1103  
1104          $site_ids[] = (int) $site_id;
1105      }
1106  
1107      $sites = array();
1108  
1109      if ( ! empty( $site_ids ) ) {
1110          $args = array(
1111              'number'   => '',
1112              'site__in' => $site_ids,
1113          );
1114          if ( ! $all ) {
1115              $args['archived'] = 0;
1116              $args['spam']     = 0;
1117              $args['deleted']  = 0;
1118          }
1119  
1120          $_sites = get_sites( $args );
1121  
1122          foreach ( $_sites as $site ) {
1123              $sites[ $site->id ] = (object) array(
1124                  'userblog_id' => $site->id,
1125                  'blogname'    => $site->blogname,
1126                  'domain'      => $site->domain,
1127                  'path'        => $site->path,
1128                  'site_id'     => $site->network_id,
1129                  'siteurl'     => $site->siteurl,
1130                  'archived'    => $site->archived,
1131                  'mature'      => $site->mature,
1132                  'spam'        => $site->spam,
1133                  'deleted'     => $site->deleted,
1134              );
1135          }
1136      }
1137  
1138      /**
1139       * Filters the list of sites a user belongs to.
1140       *
1141       * @since MU (3.0.0)
1142       *
1143       * @param object[] $sites   An array of site objects belonging to the user.
1144       * @param int      $user_id User ID.
1145       * @param bool     $all     Whether the returned sites array should contain all sites, including
1146       *                          those flagged for deletion, archived, or marked as spam.
1147       */
1148      return apply_filters( 'get_blogs_of_user', $sites, $user_id, $all );
1149  }
1150  
1151  /**
1152   * Finds out whether a user is a member of a given blog.
1153   *
1154   * @since MU (3.0.0)
1155   *
1156   * @global wpdb $wpdb WordPress database abstraction object.
1157   *
1158   * @param int $user_id Optional. The unique ID of the user. Defaults to the current user.
1159   * @param int $blog_id Optional. ID of the blog to check. Defaults to the current site.
1160   * @return bool
1161   */
1162  function is_user_member_of_blog( $user_id = 0, $blog_id = 0 ) {
1163      global $wpdb;
1164  
1165      $user_id = (int) $user_id;
1166      $blog_id = (int) $blog_id;
1167  
1168      if ( empty( $user_id ) ) {
1169          $user_id = get_current_user_id();
1170      }
1171  
1172      /*
1173       * Technically not needed, but does save calls to get_site() and get_user_meta()
1174       * in the event that the function is called when a user isn't logged in.
1175       */
1176      if ( empty( $user_id ) ) {
1177          return false;
1178      } else {
1179          $user = get_userdata( $user_id );
1180          if ( ! $user instanceof WP_User ) {
1181              return false;
1182          }
1183      }
1184  
1185      if ( ! is_multisite() ) {
1186          return true;
1187      }
1188  
1189      if ( empty( $blog_id ) ) {
1190          $blog_id = get_current_blog_id();
1191      }
1192  
1193      $blog = get_site( $blog_id );
1194  
1195      if ( ! $blog || ! isset( $blog->domain ) || $blog->archived || $blog->spam || $blog->deleted ) {
1196          return false;
1197      }
1198  
1199      if ( 1 === $blog_id ) {
1200          $capabilities_key = $wpdb->base_prefix . 'capabilities';
1201      } else {
1202          $capabilities_key = $wpdb->base_prefix . $blog_id . '_capabilities';
1203      }
1204      $has_cap = get_user_meta( $user_id, $capabilities_key, true );
1205  
1206      return is_array( $has_cap );
1207  }
1208  
1209  /**
1210   * Adds meta data to a user.
1211   *
1212   * For historical reasons both the meta key and the meta value are expected to be "slashed" (slashes escaped) on input.
1213   *
1214   * @since 3.0.0
1215   *
1216   * @param int    $user_id    User ID.
1217   * @param string $meta_key   Metadata name.
1218   * @param mixed  $meta_value Metadata value. Arrays and objects are stored as serialized data and
1219   *                           will be returned as the same type when retrieved. Other data types will
1220   *                           be stored as strings in the database:
1221   *                           - false is stored and retrieved as an empty string ('')
1222   *                           - true is stored and retrieved as '1'
1223   *                           - numbers (both integer and float) are stored and retrieved as strings
1224   *                           Must be serializable if non-scalar.
1225   * @param bool   $unique     Optional. Whether the same key should not be added.
1226   *                           Default false.
1227   * @return int|false Meta ID on success, false on failure.
1228   */
1229  function add_user_meta( $user_id, $meta_key, $meta_value, $unique = false ) {
1230      return add_metadata( 'user', $user_id, $meta_key, $meta_value, $unique );
1231  }
1232  
1233  /**
1234   * Removes metadata matching criteria from a user.
1235   *
1236   * You can match based on the key, or key and value. Removing based on key and
1237   * value, will keep from removing duplicate metadata with the same key. It also
1238   * allows removing all metadata matching key, if needed.
1239   *
1240   * For historical reasons both the meta key and the meta value are expected to be "slashed" (slashes escaped) on input.
1241   *
1242   * @since 3.0.0
1243   *
1244   * @link https://developer.wordpress.org/reference/functions/delete_user_meta/
1245   *
1246   * @param int    $user_id    User ID
1247   * @param string $meta_key   Metadata name.
1248   * @param mixed  $meta_value Optional. Metadata value. If provided,
1249   *                           rows will only be removed that match the value.
1250   *                           Must be serializable if non-scalar. Default empty.
1251   * @return bool True on success, false on failure.
1252   */
1253  function delete_user_meta( $user_id, $meta_key, $meta_value = '' ) {
1254      return delete_metadata( 'user', $user_id, $meta_key, $meta_value );
1255  }
1256  
1257  /**
1258   * Retrieves user meta field for a user.
1259   *
1260   * @since 3.0.0
1261   *
1262   * @link https://developer.wordpress.org/reference/functions/get_user_meta/
1263   *
1264   * @param int    $user_id User ID.
1265   * @param string $key     Optional. The meta key to retrieve. By default,
1266   *                        returns data for all keys.
1267   * @param bool   $single  Optional. Whether to return a single value.
1268   *                        This parameter has no effect if `$key` is not specified.
1269   *                        Default false.
1270   * @return mixed An array of values if `$single` is false.
1271   *               The value of meta data field if `$single` is true.
1272   *               False for an invalid `$user_id` (non-numeric, zero, or negative value).
1273   *               An empty array if a valid but non-existing user ID is passed and `$single` is false.
1274   *               An empty string if a valid but non-existing user ID is passed and `$single` is true.
1275   *               Note: Non-serialized values are returned as strings:
1276   *               - false values are returned as empty strings ('')
1277   *               - true values are returned as '1'
1278   *               - numbers (both integer and float) are returned as strings
1279   *               Arrays and objects retain their original type.
1280   */
1281  function get_user_meta( $user_id, $key = '', $single = false ) {
1282      return get_metadata( 'user', $user_id, $key, $single );
1283  }
1284  
1285  /**
1286   * Updates user meta field based on user ID.
1287   *
1288   * Use the $prev_value parameter to differentiate between meta fields with the
1289   * same key and user ID.
1290   *
1291   * If the meta field for the user does not exist, it will be added.
1292   *
1293   * For historical reasons both the meta key and the meta value are expected to be "slashed" (slashes escaped) on input.
1294   *
1295   * @since 3.0.0
1296   *
1297   * @link https://developer.wordpress.org/reference/functions/update_user_meta/
1298   *
1299   * @param int    $user_id    User ID.
1300   * @param string $meta_key   Metadata key.
1301   * @param mixed  $meta_value Metadata value. Must be serializable if non-scalar.
1302   * @param mixed  $prev_value Optional. Previous value to check before updating.
1303   *                           If specified, only update existing metadata entries with
1304   *                           this value. Otherwise, update all entries. Default empty.
1305   * @return int|bool Meta ID if the key didn't exist, true on successful update,
1306   *                  false on failure or if the value passed to the function
1307   *                  is the same as the one that is already in the database.
1308   */
1309  function update_user_meta( $user_id, $meta_key, $meta_value, $prev_value = '' ) {
1310      return update_metadata( 'user', $user_id, $meta_key, $meta_value, $prev_value );
1311  }
1312  
1313  /**
1314   * Counts number of users who have each of the user roles.
1315   *
1316   * Assumes there are neither duplicated nor orphaned capabilities meta_values.
1317   * Assumes role names are unique phrases. Same assumption made by WP_User_Query::prepare_query()
1318   * Using $strategy = 'time' this is CPU-intensive and should handle around 10^7 users.
1319   * Using $strategy = 'memory' this is memory-intensive and should handle around 10^5 users, but see WP Bug #12257.
1320   *
1321   * @since 3.0.0
1322   * @since 4.4.0 The number of users with no role is now included in the `none` element.
1323   * @since 4.9.0 The `$site_id` parameter was added to support multisite.
1324   *
1325   * @global wpdb $wpdb WordPress database abstraction object.
1326   *
1327   * @param string   $strategy Optional. The computational strategy to use when counting the users.
1328   *                           Accepts either 'time' or 'memory'. Default 'time'.
1329   * @param int|null $site_id  Optional. The site ID to count users for. Defaults to the current site.
1330   * @return array {
1331   *     User counts.
1332   *
1333   *     @type int   $total_users Total number of users on the site.
1334   *     @type int[] $avail_roles Array of user counts keyed by user role.
1335   * }
1336   */
1337  function count_users( $strategy = 'time', $site_id = null ) {
1338      global $wpdb;
1339  
1340      // Initialize.
1341      if ( ! $site_id ) {
1342          $site_id = get_current_blog_id();
1343      }
1344  
1345      /**
1346       * Filters the user count before queries are run.
1347       *
1348       * Return a non-null value to cause count_users() to return early.
1349       *
1350       * @since 5.1.0
1351       *
1352       * @param null|array $result   The value to return instead. Default null to continue with the query.
1353       * @param string     $strategy Optional. The computational strategy to use when counting the users.
1354       *                             Accepts either 'time' or 'memory'. Default 'time'.
1355       * @param int        $site_id  The site ID to count users for.
1356       */
1357      $pre = apply_filters( 'pre_count_users', null, $strategy, $site_id );
1358  
1359      if ( null !== $pre ) {
1360          return $pre;
1361      }
1362  
1363      $blog_prefix = $wpdb->get_blog_prefix( $site_id );
1364      $result      = array();
1365  
1366      if ( 'time' === $strategy ) {
1367          if ( is_multisite() && get_current_blog_id() !== $site_id ) {
1368              switch_to_blog( $site_id );
1369              $avail_roles = wp_roles()->get_names();
1370              restore_current_blog();
1371          } else {
1372              $avail_roles = wp_roles()->get_names();
1373          }
1374  
1375          // Build a CPU-intensive query that will return concise information.
1376          $select_count = array();
1377          foreach ( $avail_roles as $this_role => $name ) {
1378              $select_count[] = $wpdb->prepare( 'COUNT(NULLIF(`meta_value` LIKE %s, false))', '%' . $wpdb->esc_like( '"' . $this_role . '"' ) . '%' );
1379          }
1380          $select_count[] = "COUNT(NULLIF(`meta_value` = 'a:0:{}', false))";
1381          $select_count   = implode( ', ', $select_count );
1382  
1383          // Add the meta_value index to the selection list, then run the query.
1384          $row = $wpdb->get_row(
1385              "
1386              SELECT {$select_count}, COUNT(*)
1387              FROM {$wpdb->usermeta}
1388              INNER JOIN {$wpdb->users} ON user_id = ID
1389              WHERE meta_key = '{$blog_prefix}capabilities'
1390          ",
1391              ARRAY_N
1392          );
1393  
1394          // Run the previous loop again to associate results with role names.
1395          $col         = 0;
1396          $role_counts = array();
1397          foreach ( $avail_roles as $this_role => $name ) {
1398              $count = (int) $row[ $col++ ];
1399              if ( $count > 0 ) {
1400                  $role_counts[ $this_role ] = $count;
1401              }
1402          }
1403  
1404          $role_counts['none'] = (int) $row[ $col++ ];
1405  
1406          // Get the meta_value index from the end of the result set.
1407          $total_users = (int) $row[ $col ];
1408  
1409          $result['total_users'] = $total_users;
1410          $result['avail_roles'] =& $role_counts;
1411      } else {
1412          $avail_roles = array(
1413              'none' => 0,
1414          );
1415  
1416          $users_of_blog = $wpdb->get_col(
1417              "
1418              SELECT meta_value
1419              FROM {$wpdb->usermeta}
1420              INNER JOIN {$wpdb->users} ON user_id = ID
1421              WHERE meta_key = '{$blog_prefix}capabilities'
1422          "
1423          );
1424  
1425          foreach ( $users_of_blog as $caps_meta ) {
1426              $b_roles = maybe_unserialize( $caps_meta );
1427              if ( ! is_array( $b_roles ) ) {
1428                  continue;
1429              }
1430              if ( empty( $b_roles ) ) {
1431                  ++$avail_roles['none'];
1432              }
1433              foreach ( $b_roles as $b_role => $val ) {
1434                  if ( isset( $avail_roles[ $b_role ] ) ) {
1435                      ++$avail_roles[ $b_role ];
1436                  } else {
1437                      $avail_roles[ $b_role ] = 1;
1438                  }
1439              }
1440          }
1441  
1442          $result['total_users'] = count( $users_of_blog );
1443          $result['avail_roles'] =& $avail_roles;
1444      }
1445  
1446      return $result;
1447  }
1448  
1449  /**
1450   * Returns the number of active users in your installation.
1451   *
1452   * Note that on a large site the count may be cached and only updated twice daily.
1453   *
1454   * @since MU (3.0.0)
1455   * @since 4.8.0 The `$network_id` parameter has been added.
1456   * @since 6.0.0 Moved to wp-includes/user.php.
1457   *
1458   * @param int|null $network_id ID of the network. Defaults to the current network.
1459   * @return int Number of active users on the network.
1460   */
1461  function get_user_count( $network_id = null ) {
1462      if ( ! is_multisite() && null !== $network_id ) {
1463          _doing_it_wrong(
1464              __FUNCTION__,
1465              sprintf(
1466                  /* translators: %s: $network_id */
1467                  __( 'Unable to pass %s if not using multisite.' ),
1468                  '<code>$network_id</code>'
1469              ),
1470              '6.0.0'
1471          );
1472      }
1473  
1474      return (int) get_network_option( $network_id, 'user_count', -1 );
1475  }
1476  
1477  /**
1478   * Updates the total count of users on the site if live user counting is enabled.
1479   *
1480   * @since 6.0.0
1481   *
1482   * @param int|null $network_id ID of the network. Defaults to the current network.
1483   * @return bool Whether the update was successful.
1484   */
1485  function wp_maybe_update_user_counts( $network_id = null ) {
1486      if ( ! is_multisite() && null !== $network_id ) {
1487          _doing_it_wrong(
1488              __FUNCTION__,
1489              sprintf(
1490                  /* translators: %s: $network_id */
1491                  __( 'Unable to pass %s if not using multisite.' ),
1492                  '<code>$network_id</code>'
1493              ),
1494              '6.0.0'
1495          );
1496      }
1497  
1498      $is_small_network = ! wp_is_large_user_count( $network_id );
1499      /** This filter is documented in wp-includes/ms-functions.php */
1500      if ( ! apply_filters( 'enable_live_network_counts', $is_small_network, 'users' ) ) {
1501          return false;
1502      }
1503  
1504      return wp_update_user_counts( $network_id );
1505  }
1506  
1507  /**
1508   * Updates the total count of users on the site.
1509   *
1510   * @global wpdb $wpdb WordPress database abstraction object.
1511   * @since 6.0.0
1512   *
1513   * @param int|null $network_id ID of the network. Defaults to the current network.
1514   * @return bool Whether the update was successful.
1515   */
1516  function wp_update_user_counts( $network_id = null ) {
1517      global $wpdb;
1518  
1519      if ( ! is_multisite() && null !== $network_id ) {
1520          _doing_it_wrong(
1521              __FUNCTION__,
1522              sprintf(
1523                  /* translators: %s: $network_id */
1524                  __( 'Unable to pass %s if not using multisite.' ),
1525                  '<code>$network_id</code>'
1526              ),
1527              '6.0.0'
1528          );
1529      }
1530  
1531      $query = "SELECT COUNT(ID) as c FROM $wpdb->users";
1532      if ( is_multisite() ) {
1533          $query .= " WHERE spam = '0' AND deleted = '0'";
1534      }
1535  
1536      $count = $wpdb->get_var( $query );
1537  
1538      return update_network_option( $network_id, 'user_count', $count );
1539  }
1540  
1541  /**
1542   * Schedules a recurring recalculation of the total count of users.
1543   *
1544   * @since 6.0.0
1545   */
1546  function wp_schedule_update_user_counts() {
1547      if ( ! is_main_site() ) {
1548          return;
1549      }
1550  
1551      if ( ! wp_next_scheduled( 'wp_update_user_counts' ) && ! wp_installing() ) {
1552          wp_schedule_event( time(), 'twicedaily', 'wp_update_user_counts' );
1553      }
1554  }
1555  
1556  /**
1557   * Determines whether the site has a large number of users.
1558   *
1559   * The default criteria for a large site is more than 10,000 users.
1560   *
1561   * @since 6.0.0
1562   *
1563   * @param int|null $network_id ID of the network. Defaults to the current network.
1564   * @return bool Whether the site has a large number of users.
1565   */
1566  function wp_is_large_user_count( $network_id = null ) {
1567      if ( ! is_multisite() && null !== $network_id ) {
1568          _doing_it_wrong(
1569              __FUNCTION__,
1570              sprintf(
1571                  /* translators: %s: $network_id */
1572                  __( 'Unable to pass %s if not using multisite.' ),
1573                  '<code>$network_id</code>'
1574              ),
1575              '6.0.0'
1576          );
1577      }
1578  
1579      $count = get_user_count( $network_id );
1580  
1581      /**
1582       * Filters whether the site is considered large, based on its number of users.
1583       *
1584       * @since 6.0.0
1585       *
1586       * @param bool     $is_large_user_count Whether the site has a large number of users.
1587       * @param int      $count               The total number of users.
1588       * @param int|null $network_id          ID of the network. `null` represents the current network.
1589       */
1590      return apply_filters( 'wp_is_large_user_count', $count > 10000, $count, $network_id );
1591  }
1592  
1593  //
1594  // Private helper functions.
1595  //
1596  
1597  /**
1598   * Sets up global user vars.
1599   *
1600   * Used by wp_set_current_user() for back compat. Might be deprecated in the future.
1601   *
1602   * @since 2.0.4
1603   *
1604   * @global string  $user_login    The user username for logging in
1605   * @global WP_User $userdata      User data.
1606   * @global int     $user_level    The level of the user
1607   * @global int     $user_ID       The ID of the user
1608   * @global string  $user_email    The email address of the user
1609   * @global string  $user_url      The url in the user's profile
1610   * @global string  $user_identity The display name of the user
1611   *
1612   * @param int $for_user_id Optional. User ID to set up global data. Default 0.
1613   */
1614  function setup_userdata( $for_user_id = 0 ) {
1615      global $user_login, $userdata, $user_level, $user_ID, $user_email, $user_url, $user_identity;
1616  
1617      if ( ! $for_user_id ) {
1618          $for_user_id = get_current_user_id();
1619      }
1620      $user = get_userdata( $for_user_id );
1621  
1622      if ( ! $user ) {
1623          $user_ID       = 0;
1624          $user_level    = 0;
1625          $userdata      = null;
1626          $user_login    = '';
1627          $user_email    = '';
1628          $user_url      = '';
1629          $user_identity = '';
1630          return;
1631      }
1632  
1633      $user_ID       = (int) $user->ID;
1634      $user_level    = (int) $user->user_level;
1635      $userdata      = $user;
1636      $user_login    = $user->user_login;
1637      $user_email    = $user->user_email;
1638      $user_url      = $user->user_url;
1639      $user_identity = $user->display_name;
1640  }
1641  
1642  /**
1643   * Creates dropdown HTML content of users.
1644   *
1645   * The content can either be displayed, which it is by default, or retrieved by
1646   * setting the 'echo' argument to false. The 'include' and 'exclude' arguments
1647   * are optional; if they are not specified, all users will be displayed. Only one
1648   * can be used in a single call, either 'include' or 'exclude', but not both.
1649   *
1650   * @since 2.3.0
1651   * @since 4.5.0 Added the 'display_name_with_login' value for 'show'.
1652   * @since 4.7.0 Added the 'role', 'role__in', and 'role__not_in' parameters.
1653   * @since 5.9.0 Added the 'capability', 'capability__in', and 'capability__not_in' parameters.
1654   *              Deprecated the 'who' parameter.
1655   *
1656   * @param array|string $args {
1657   *     Optional. Array or string of arguments to generate a drop-down of users.
1658   *     See WP_User_Query::prepare_query() for additional available arguments.
1659   *
1660   *     @type string          $show_option_all         Text to show as the drop-down default (all).
1661   *                                                    Default empty.
1662   *     @type string          $show_option_none        Text to show as the drop-down default when no
1663   *                                                    users were found. Default empty.
1664   *     @type int|string      $option_none_value       Value to use for `$show_option_none` when no users
1665   *                                                    were found. Default -1.
1666   *     @type string          $hide_if_only_one_author Whether to skip generating the drop-down
1667   *                                                    if only one user was found. Default empty.
1668   *     @type string          $orderby                 Field to order found users by. Accepts user fields.
1669   *                                                    Default 'display_name'.
1670   *     @type string          $order                   Whether to order users in ascending or descending
1671   *                                                    order. Accepts 'ASC' (ascending) or 'DESC' (descending).
1672   *                                                    Default 'ASC'.
1673   *     @type int[]|string    $include                 Array or comma-separated list of user IDs to include.
1674   *                                                    Default empty.
1675   *     @type int[]|string    $exclude                 Array or comma-separated list of user IDs to exclude.
1676   *                                                    Default empty.
1677   *     @type bool|int        $multi                   Whether to skip the ID attribute on the 'select' element.
1678   *                                                    Accepts 1|true or 0|false. Default 0|false.
1679   *     @type string          $show                    User data to display. If the selected item is empty
1680   *                                                    then the 'user_login' will be displayed in parentheses.
1681   *                                                    Accepts any user field, or 'display_name_with_login' to show
1682   *                                                    the display name with user_login in parentheses.
1683   *                                                    Default 'display_name'.
1684   *     @type int|bool        $echo                    Whether to echo or return the drop-down. Accepts 1|true (echo)
1685   *                                                    or 0|false (return). Default 1|true.
1686   *     @type int             $selected                Which user ID should be selected. Default 0.
1687   *     @type bool            $include_selected        Whether to always include the selected user ID in the drop-
1688   *                                                    down. Default false.
1689   *     @type string          $name                    Name attribute of select element. Default 'user'.
1690   *     @type string          $id                      ID attribute of the select element. Default is the value of `$name`.
1691   *     @type string          $class                   Class attribute of the select element. Default empty.
1692   *     @type int             $blog_id                 ID of blog (Multisite only). Default is ID of the current blog.
1693   *     @type string          $who                     Deprecated, use `$capability` instead.
1694   *                                                    Which type of users to query. Accepts only an empty string or
1695   *                                                    'authors'. Default empty (all users).
1696   *     @type string|string[] $role                    An array or a comma-separated list of role names that users
1697   *                                                    must match to be included in results. Note that this is
1698   *                                                    an inclusive list: users must match *each* role. Default empty.
1699   *     @type string[]        $role__in                An array of role names. Matched users must have at least one
1700   *                                                    of these roles. Default empty array.
1701   *     @type string[]        $role__not_in            An array of role names to exclude. Users matching one or more
1702   *                                                    of these roles will not be included in results. Default empty array.
1703   *     @type string|string[] $capability              An array or a comma-separated list of capability names that users
1704   *                                                    must match to be included in results. Note that this is
1705   *                                                    an inclusive list: users must match *each* capability.
1706   *                                                    Does NOT work for capabilities not in the database or filtered
1707   *                                                    via {@see 'map_meta_cap'}. Default empty.
1708   *     @type string[]        $capability__in          An array of capability names. Matched users must have at least one
1709   *                                                    of these capabilities.
1710   *                                                    Does NOT work for capabilities not in the database or filtered
1711   *                                                    via {@see 'map_meta_cap'}. Default empty array.
1712   *     @type string[]        $capability__not_in      An array of capability names to exclude. Users matching one or more
1713   *                                                    of these capabilities will not be included in results.
1714   *                                                    Does NOT work for capabilities not in the database or filtered
1715   *                                                    via {@see 'map_meta_cap'}. Default empty array.
1716   * }
1717   * @return string HTML dropdown list of users.
1718   */
1719  function wp_dropdown_users( $args = '' ) {
1720      $defaults = array(
1721          'show_option_all'         => '',
1722          'show_option_none'        => '',
1723          'hide_if_only_one_author' => '',
1724          'orderby'                 => 'display_name',
1725          'order'                   => 'ASC',
1726          'include'                 => '',
1727          'exclude'                 => '',
1728          'multi'                   => 0,
1729          'show'                    => 'display_name',
1730          'echo'                    => 1,
1731          'selected'                => 0,
1732          'name'                    => 'user',
1733          'class'                   => '',
1734          'id'                      => '',
1735          'blog_id'                 => get_current_blog_id(),
1736          'who'                     => '',
1737          'include_selected'        => false,
1738          'option_none_value'       => -1,
1739          'role'                    => '',
1740          'role__in'                => array(),
1741          'role__not_in'            => array(),
1742          'capability'              => '',
1743          'capability__in'          => array(),
1744          'capability__not_in'      => array(),
1745      );
1746  
1747      $defaults['selected'] = is_author() ? get_query_var( 'author' ) : 0;
1748  
1749      $parsed_args = wp_parse_args( $args, $defaults );
1750  
1751      $query_args = wp_array_slice_assoc(
1752          $parsed_args,
1753          array(
1754              'blog_id',
1755              'include',
1756              'exclude',
1757              'orderby',
1758              'order',
1759              'who',
1760              'role',
1761              'role__in',
1762              'role__not_in',
1763              'capability',
1764              'capability__in',
1765              'capability__not_in',
1766          )
1767      );
1768  
1769      $fields = array( 'ID', 'user_login' );
1770  
1771      $show = ! empty( $parsed_args['show'] ) ? $parsed_args['show'] : 'display_name';
1772      if ( 'display_name_with_login' === $show ) {
1773          $fields[] = 'display_name';
1774      } else {
1775          $fields[] = $show;
1776      }
1777  
1778      $query_args['fields'] = $fields;
1779  
1780      $show_option_all   = $parsed_args['show_option_all'];
1781      $show_option_none  = $parsed_args['show_option_none'];
1782      $option_none_value = $parsed_args['option_none_value'];
1783  
1784      /**
1785       * Filters the query arguments for the list of users in the dropdown.
1786       *
1787       * @since 4.4.0
1788       *
1789       * @param array $query_args  The query arguments for get_users().
1790       * @param array $parsed_args The arguments passed to wp_dropdown_users() combined with the defaults.
1791       */
1792      $query_args = apply_filters( 'wp_dropdown_users_args', $query_args, $parsed_args );
1793  
1794      $users = get_users( $query_args );
1795  
1796      $output = '';
1797      if ( ! empty( $users ) && ( empty( $parsed_args['hide_if_only_one_author'] ) || count( $users ) > 1 ) ) {
1798          $name = esc_attr( $parsed_args['name'] );
1799          if ( $parsed_args['multi'] && ! $parsed_args['id'] ) {
1800              $id = '';
1801          } else {
1802              $id = $parsed_args['id'] ? " id='" . esc_attr( $parsed_args['id'] ) . "'" : " id='$name'";
1803          }
1804          $output = "<select name='{$name}'{$id} class='" . $parsed_args['class'] . "'>\n";
1805  
1806          if ( $show_option_all ) {
1807              $output .= "\t<option value='0'>$show_option_all</option>\n";
1808          }
1809  
1810          if ( $show_option_none ) {
1811              $_selected = selected( $option_none_value, $parsed_args['selected'], false );
1812              $output   .= "\t<option value='" . esc_attr( $option_none_value ) . "'$_selected>$show_option_none</option>\n";
1813          }
1814  
1815          if ( $parsed_args['include_selected'] && ( $parsed_args['selected'] > 0 ) ) {
1816              $found_selected          = false;
1817              $parsed_args['selected'] = (int) $parsed_args['selected'];
1818  
1819              foreach ( (array) $users as $user ) {
1820                  $user->ID = (int) $user->ID;
1821                  if ( $user->ID === $parsed_args['selected'] ) {
1822                      $found_selected = true;
1823                  }
1824              }
1825  
1826              if ( ! $found_selected ) {
1827                  $selected_user = get_userdata( $parsed_args['selected'] );
1828                  if ( $selected_user ) {
1829                      $users[] = $selected_user;
1830                  }
1831              }
1832          }
1833  
1834          foreach ( (array) $users as $user ) {
1835              if ( 'display_name_with_login' === $show ) {
1836                  /* translators: 1: User's display name, 2: User login. */
1837                  $display = sprintf( _x( '%1$s (%2$s)', 'user dropdown' ), $user->display_name, $user->user_login );
1838              } elseif ( ! empty( $user->$show ) ) {
1839                  $display = $user->$show;
1840              } else {
1841                  $display = '(' . $user->user_login . ')';
1842              }
1843  
1844              $_selected = selected( $user->ID, $parsed_args['selected'], false );
1845              $output   .= "\t<option value='$user->ID'$_selected>" . esc_html( $display ) . "</option>\n";
1846          }
1847  
1848          $output .= '</select>';
1849      }
1850  
1851      /**
1852       * Filters the wp_dropdown_users() HTML output.
1853       *
1854       * @since 2.3.0
1855       *
1856       * @param string $output HTML output generated by wp_dropdown_users().
1857       */
1858      $html = apply_filters( 'wp_dropdown_users', $output );
1859  
1860      if ( $parsed_args['echo'] ) {
1861          echo $html;
1862      }
1863      return $html;
1864  }
1865  
1866  /**
1867   * Sanitizes user field based on context.
1868   *
1869   * Possible context values are:  'raw', 'edit', 'db', 'display', 'attribute' and 'js'. The
1870   * 'display' context is used by default. 'attribute' and 'js' contexts are treated like 'display'
1871   * when calling filters.
1872   *
1873   * @since 2.3.0
1874   *
1875   * @param string $field   The user Object field name.
1876   * @param mixed  $value   The user Object value.
1877   * @param int    $user_id User ID.
1878   * @param string $context How to sanitize user fields. Looks for 'raw', 'edit', 'db', 'display',
1879   *                        'attribute' and 'js'.
1880   * @return mixed Sanitized value.
1881   */
1882  function sanitize_user_field( $field, $value, $user_id, $context ) {
1883      $int_fields = array( 'ID' );
1884      if ( in_array( $field, $int_fields, true ) ) {
1885          $value = (int) $value;
1886      }
1887  
1888      if ( 'raw' === $context ) {
1889          return $value;
1890      }
1891  
1892      if ( ! is_string( $value ) && ! is_numeric( $value ) ) {
1893          return $value;
1894      }
1895  
1896      $prefixed = str_contains( $field, 'user_' );
1897  
1898      if ( 'edit' === $context ) {
1899          if ( $prefixed ) {
1900  
1901              /** This filter is documented in wp-includes/post.php */
1902              $value = apply_filters( "edit_{$field}", $value, $user_id );
1903          } else {
1904  
1905              /**
1906               * Filters a user field value in the 'edit' context.
1907               *
1908               * The dynamic portion of the hook name, `$field`, refers to the prefixed user
1909               * field being filtered, such as 'user_login', 'user_email', 'first_name', etc.
1910               *
1911               * @since 2.9.0
1912               *
1913               * @param mixed $value   Value of the prefixed user field.
1914               * @param int   $user_id User ID.
1915               */
1916              $value = apply_filters( "edit_user_{$field}", $value, $user_id );
1917          }
1918  
1919          if ( 'description' === $field ) {
1920              $value = esc_html( $value ); // textarea_escaped?
1921          } else {
1922              $value = esc_attr( $value );
1923          }
1924      } elseif ( 'db' === $context ) {
1925          if ( $prefixed ) {
1926              /** This filter is documented in wp-includes/post.php */
1927              $value = apply_filters( "pre_{$field}", $value );
1928          } else {
1929  
1930              /**
1931               * Filters the value of a user field in the 'db' context.
1932               *
1933               * The dynamic portion of the hook name, `$field`, refers to the prefixed user
1934               * field being filtered, such as 'user_login', 'user_email', 'first_name', etc.
1935               *
1936               * @since 2.9.0
1937               *
1938               * @param mixed $value Value of the prefixed user field.
1939               */
1940              $value = apply_filters( "pre_user_{$field}", $value );
1941          }
1942      } else {
1943          // Use display filters by default.
1944          if ( $prefixed ) {
1945  
1946              /** This filter is documented in wp-includes/post.php */
1947              $value = apply_filters( "{$field}", $value, $user_id, $context );
1948          } else {
1949  
1950              /**
1951               * Filters the value of a user field in a standard context.
1952               *
1953               * The dynamic portion of the hook name, `$field`, refers to the prefixed user
1954               * field being filtered, such as 'user_login', 'user_email', 'first_name', etc.
1955               *
1956               * @since 2.9.0
1957               *
1958               * @param mixed  $value   The user object value to sanitize.
1959               * @param int    $user_id User ID.
1960               * @param string $context The context to filter within.
1961               */
1962              $value = apply_filters( "user_{$field}", $value, $user_id, $context );
1963          }
1964      }
1965  
1966      if ( 'user_url' === $field ) {
1967          $value = esc_url( $value );
1968      }
1969  
1970      if ( 'attribute' === $context ) {
1971          $value = esc_attr( $value );
1972      } elseif ( 'js' === $context ) {
1973          $value = esc_js( $value );
1974      }
1975  
1976      // Restore the type for integer fields after esc_attr().
1977      if ( in_array( $field, $int_fields, true ) ) {
1978          $value = (int) $value;
1979      }
1980  
1981      return $value;
1982  }
1983  
1984  /**
1985   * Updates all user caches.
1986   *
1987   * @since 3.0.0
1988   *
1989   * @param object|WP_User $user User object or database row to be cached
1990   * @return void|false Void on success, false on failure.
1991   */
1992  function update_user_caches( $user ) {
1993      if ( $user instanceof WP_User ) {
1994          if ( ! $user->exists() ) {
1995              return false;
1996          }
1997  
1998          $user = $user->data;
1999      }
2000  
2001      wp_cache_add( $user->ID, $user, 'users' );
2002      wp_cache_add( $user->user_login, $user->ID, 'userlogins' );
2003      wp_cache_add( $user->user_nicename, $user->ID, 'userslugs' );
2004  
2005      if ( ! empty( $user->user_email ) ) {
2006          wp_cache_add( $user->user_email, $user->ID, 'useremail' );
2007      }
2008  }
2009  
2010  /**
2011   * Cleans all user caches.
2012   *
2013   * @since 3.0.0
2014   * @since 4.4.0 'clean_user_cache' action was added.
2015   * @since 6.2.0 User metadata caches are now cleared.
2016   *
2017   * @param WP_User|int $user User object or ID to be cleaned from the cache
2018   */
2019  function clean_user_cache( $user ) {
2020      if ( is_numeric( $user ) ) {
2021          $user = new WP_User( $user );
2022      }
2023  
2024      if ( ! $user->exists() ) {
2025          return;
2026      }
2027  
2028      wp_cache_delete( $user->ID, 'users' );
2029      wp_cache_delete( $user->user_login, 'userlogins' );
2030      wp_cache_delete( $user->user_nicename, 'userslugs' );
2031  
2032      if ( ! empty( $user->user_email ) ) {
2033          wp_cache_delete( $user->user_email, 'useremail' );
2034      }
2035  
2036      wp_cache_delete( $user->ID, 'user_meta' );
2037      wp_cache_set_users_last_changed();
2038  
2039      /**
2040       * Fires immediately after the given user's cache is cleaned.
2041       *
2042       * @since 4.4.0
2043       *
2044       * @param int     $user_id User ID.
2045       * @param WP_User $user    User object.
2046       */
2047      do_action( 'clean_user_cache', $user->ID, $user );
2048  }
2049  
2050  /**
2051   * Determines whether the given username exists.
2052   *
2053   * For more information on this and similar theme functions, check out
2054   * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
2055   * Conditional Tags} article in the Theme Developer Handbook.
2056   *
2057   * @since 2.0.0
2058   *
2059   * @param string $username The username to check for existence.
2060   * @return int|false The user ID on success, false on failure.
2061   */
2062  function username_exists( $username ) {
2063      $user = get_user_by( 'login', $username );
2064      if ( $user ) {
2065          $user_id = $user->ID;
2066      } else {
2067          $user_id = false;
2068      }
2069  
2070      /**
2071       * Filters whether the given username exists.
2072       *
2073       * @since 4.9.0
2074       *
2075       * @param int|false $user_id  The user ID associated with the username,
2076       *                            or false if the username does not exist.
2077       * @param string    $username The username to check for existence.
2078       */
2079      return apply_filters( 'username_exists', $user_id, $username );
2080  }
2081  
2082  /**
2083   * Determines whether the given email exists.
2084   *
2085   * For more information on this and similar theme functions, check out
2086   * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
2087   * Conditional Tags} article in the Theme Developer Handbook.
2088   *
2089   * @since 2.1.0
2090   *
2091   * @param string $email The email to check for existence.
2092   * @return int|false The user ID on success, false on failure.
2093   */
2094  function email_exists( $email ) {
2095      $user = get_user_by( 'email', $email );
2096      if ( $user ) {
2097          $user_id = $user->ID;
2098      } else {
2099          $user_id = false;
2100      }
2101  
2102      /**
2103       * Filters whether the given email exists.
2104       *
2105       * @since 5.6.0
2106       *
2107       * @param int|false $user_id The user ID associated with the email,
2108       *                           or false if the email does not exist.
2109       * @param string    $email   The email to check for existence.
2110       */
2111      return apply_filters( 'email_exists', $user_id, $email );
2112  }
2113  
2114  /**
2115   * Checks whether a username is valid.
2116   *
2117   * @since 2.0.1
2118   * @since 4.4.0 Empty sanitized usernames are now considered invalid.
2119   *
2120   * @param string $username Username.
2121   * @return bool Whether username given is valid.
2122   */
2123  function validate_username( $username ) {
2124      $sanitized = sanitize_user( $username, true );
2125      $valid     = ( $sanitized === $username && ! empty( $sanitized ) );
2126  
2127      /**
2128       * Filters whether the provided username is valid.
2129       *
2130       * @since 2.0.1
2131       *
2132       * @param bool   $valid    Whether given username is valid.
2133       * @param string $username Username to check.
2134       */
2135      return apply_filters( 'validate_username', $valid, $username );
2136  }
2137  
2138  /**
2139   * Inserts a user into the database.
2140   *
2141   * Most of the `$userdata` array fields have filters associated with the values. Exceptions are
2142   * 'ID', 'rich_editing', 'syntax_highlighting', 'comment_shortcuts', 'admin_color', 'use_ssl',
2143   * 'user_registered', 'user_activation_key', 'spam', and 'role'. The filters have the prefix
2144   * 'pre_user_' followed by the field name. An example using 'description' would have the filter
2145   * called 'pre_user_description' that can be hooked into.
2146   *
2147   * @since 2.0.0
2148   * @since 3.6.0 The `aim`, `jabber`, and `yim` fields were removed as default user contact
2149   *              methods for new installations. See wp_get_user_contact_methods().
2150   * @since 4.7.0 The `locale` field can be passed to `$userdata`.
2151   * @since 5.3.0 The `user_activation_key` field can be passed to `$userdata`.
2152   * @since 5.3.0 The `spam` field can be passed to `$userdata` (Multisite only).
2153   * @since 5.9.0 The `meta_input` field can be passed to `$userdata` to allow addition of user meta data.
2154   *
2155   * @global wpdb $wpdb WordPress database abstraction object.
2156   *
2157   * @param array|object|WP_User $userdata {
2158   *     An array, object, or WP_User object of user data arguments.
2159   *
2160   *     @type int    $ID                   User ID. If supplied, the user will be updated.
2161   *     @type string $user_pass            The plain-text user password for new users.
2162   *                                        Hashed password for existing users.
2163   *     @type string $user_login           The user's login username.
2164   *     @type string $user_nicename        The URL-friendly user name.
2165   *     @type string $user_url             The user URL.
2166   *     @type string $user_email           The user email address.
2167   *     @type string $display_name         The user's display name.
2168   *                                        Default is the user's username.
2169   *     @type string $nickname             The user's nickname.
2170   *                                        Default is the user's username.
2171   *     @type string $first_name           The user's first name. For new users, will be used
2172   *                                        to build the first part of the user's display name
2173   *                                        if `$display_name` is not specified.
2174   *     @type string $last_name            The user's last name. For new users, will be used
2175   *                                        to build the second part of the user's display name
2176   *                                        if `$display_name` is not specified.
2177   *     @type string $description          The user's biographical description.
2178   *     @type string $rich_editing         Whether to enable the rich-editor for the user.
2179   *                                        Accepts 'true' or 'false' as a string literal,
2180   *                                        not boolean. Default 'true'.
2181   *     @type string $syntax_highlighting  Whether to enable the rich code editor for the user.
2182   *                                        Accepts 'true' or 'false' as a string literal,
2183   *                                        not boolean. Default 'true'.
2184   *     @type string $comment_shortcuts    Whether to enable comment moderation keyboard
2185   *                                        shortcuts for the user. Accepts 'true' or 'false'
2186   *                                        as a string literal, not boolean. Default 'false'.
2187   *     @type string $admin_color          Admin color scheme for the user. Default 'fresh'.
2188   *     @type bool   $use_ssl              Whether the user should always access the admin over
2189   *                                        https. Default false.
2190   *     @type string $user_registered      Date the user registered in UTC. Format is 'Y-m-d H:i:s'.
2191   *     @type string $user_activation_key  Password reset key. Default empty.
2192   *     @type bool   $spam                 Multisite only. Whether the user is marked as spam.
2193   *                                        Default false.
2194   *     @type string $show_admin_bar_front Whether to display the Admin Bar for the user
2195   *                                        on the site's front end. Accepts 'true' or 'false'
2196   *                                        as a string literal, not boolean. Default 'true'.
2197   *     @type string $role                 User's role.
2198   *     @type string $locale               User's locale. Default empty.
2199   *     @type array  $meta_input           Array of custom user meta values keyed by meta key.
2200   *                                        Default empty.
2201   * }
2202   * @return int|WP_Error The newly created user's ID or a WP_Error object if the user could not
2203   *                      be created.
2204   */
2205  function wp_insert_user( $userdata ) {
2206      global $wpdb;
2207  
2208      if ( $userdata instanceof stdClass ) {
2209          $userdata = get_object_vars( $userdata );
2210      } elseif ( $userdata instanceof WP_User ) {
2211          $userdata = $userdata->to_array();
2212      }
2213  
2214      // Are we updating or creating?
2215      if ( ! empty( $userdata['ID'] ) ) {
2216          $user_id       = (int) $userdata['ID'];
2217          $update        = true;
2218          $old_user_data = get_userdata( $user_id );
2219  
2220          if ( ! $old_user_data ) {
2221              return new WP_Error( 'invalid_user_id', __( 'Invalid user ID.' ) );
2222          }
2223  
2224          // Slash current user email to compare it later with slashed new user email.
2225          $old_user_data->user_email = wp_slash( $old_user_data->user_email );
2226  
2227          // Hashed in wp_update_user(), plaintext if called directly.
2228          $user_pass = ! empty( $userdata['user_pass'] ) ? $userdata['user_pass'] : $old_user_data->user_pass;
2229      } else {
2230          $update = false;
2231  
2232          if ( empty( $userdata['user_pass'] ) ) {
2233              wp_trigger_error(
2234                  __FUNCTION__,
2235                  __( 'The user_pass field is required when creating a new user. The user will need to reset their password before logging in.' ),
2236                  E_USER_WARNING
2237              );
2238  
2239              // Set the password as an empty string to force the password reset flow.
2240              $userdata['user_pass'] = '';
2241          }
2242  
2243          // Hash the password.
2244          $user_pass = wp_hash_password( $userdata['user_pass'] );
2245      }
2246  
2247      $sanitized_user_login = sanitize_user( $userdata['user_login'], true );
2248  
2249      /**
2250       * Filters a username after it has been sanitized.
2251       *
2252       * This filter is called before the user is created or updated.
2253       *
2254       * @since 2.0.3
2255       *
2256       * @param string $sanitized_user_login Username after it has been sanitized.
2257       */
2258      $pre_user_login = apply_filters( 'pre_user_login', $sanitized_user_login );
2259  
2260      // Remove any non-printable chars from the login string to see if we have ended up with an empty username.
2261      $user_login = trim( $pre_user_login );
2262  
2263      // user_login must be between 0 and 60 characters.
2264      if ( empty( $user_login ) ) {
2265          return new WP_Error( 'empty_user_login', __( 'Cannot create a user with an empty login name.' ) );
2266      } elseif ( mb_strlen( $user_login ) > 60 ) {
2267          return new WP_Error( 'user_login_too_long', __( 'Username may not be longer than 60 characters.' ) );
2268      }
2269  
2270      if ( ! $update && username_exists( $user_login ) ) {
2271          return new WP_Error( 'existing_user_login', __( 'Sorry, that username already exists!' ) );
2272      }
2273  
2274      /**
2275       * Filters the list of disallowed usernames.
2276       *
2277       * @since 4.4.0
2278       *
2279       * @param array $usernames Array of disallowed usernames.
2280       */
2281      $illegal_logins = (array) apply_filters( 'illegal_user_logins', array() );
2282  
2283      if ( in_array( strtolower( $user_login ), array_map( 'strtolower', $illegal_logins ), true ) ) {
2284          return new WP_Error( 'invalid_username', __( 'Sorry, that username is not allowed.' ) );
2285      }
2286  
2287      /*
2288       * If a nicename is provided, remove unsafe user characters before using it.
2289       * Otherwise build a nicename from the user_login.
2290       */
2291      if ( ! empty( $userdata['user_nicename'] ) ) {
2292          $user_nicename = sanitize_user( $userdata['user_nicename'], true );
2293      } else {
2294          $user_nicename = mb_substr( $user_login, 0, 50 );
2295      }
2296  
2297      $user_nicename = sanitize_title( $user_nicename );
2298  
2299      /**
2300       * Filters a user's nicename before the user is created or updated.
2301       *
2302       * @since 2.0.3
2303       *
2304       * @param string $user_nicename The user's nicename.
2305       */
2306      $user_nicename = apply_filters( 'pre_user_nicename', $user_nicename );
2307  
2308      // Check if the sanitized nicename is empty.
2309      if ( empty( $user_nicename ) ) {
2310          return new WP_Error( 'empty_user_nicename', __( 'Cannot create a user with an empty nicename.' ) );
2311      } elseif ( mb_strlen( $user_nicename ) > 50 ) {
2312          return new WP_Error( 'user_nicename_too_long', __( 'Nicename may not be longer than 50 characters.' ) );
2313      }
2314  
2315      $user_nicename_check = $wpdb->get_var( $wpdb->prepare( "SELECT ID FROM $wpdb->users WHERE user_nicename = %s AND user_login != %s LIMIT 1", $user_nicename, $user_login ) );
2316  
2317      if ( $user_nicename_check ) {
2318          $suffix = 2;
2319          while ( $user_nicename_check ) {
2320              // user_nicename allows 50 chars. Subtract one for a hyphen, plus the length of the suffix.
2321              $base_length         = 49 - mb_strlen( $suffix );
2322              $alt_user_nicename   = mb_substr( $user_nicename, 0, $base_length ) . "-$suffix";
2323              $user_nicename_check = $wpdb->get_var( $wpdb->prepare( "SELECT ID FROM $wpdb->users WHERE user_nicename = %s AND user_login != %s LIMIT 1", $alt_user_nicename, $user_login ) );
2324              ++$suffix;
2325          }
2326          $user_nicename = $alt_user_nicename;
2327      }
2328  
2329      $raw_user_email = empty( $userdata['user_email'] ) ? '' : $userdata['user_email'];
2330  
2331      /**
2332       * Filters a user's email before the user is created or updated.
2333       *
2334       * @since 2.0.3
2335       *
2336       * @param string $raw_user_email The user's email.
2337       */
2338      $user_email = apply_filters( 'pre_user_email', $raw_user_email );
2339  
2340      /*
2341       * If there is no update, just check for `email_exists`. If there is an update,
2342       * check if current email and new email are the same, and check `email_exists`
2343       * accordingly.
2344       */
2345      if ( ( ! $update || ( ! empty( $old_user_data ) && 0 !== strcasecmp( $user_email, $old_user_data->user_email ) ) )
2346          && ! defined( 'WP_IMPORTING' )
2347          && email_exists( $user_email )
2348      ) {
2349          return new WP_Error( 'existing_user_email', __( 'Sorry, that email address is already used!' ) );
2350      }
2351  
2352      $raw_user_url = empty( $userdata['user_url'] ) ? '' : $userdata['user_url'];
2353  
2354      /**
2355       * Filters a user's URL before the user is created or updated.
2356       *
2357       * @since 2.0.3
2358       *
2359       * @param string $raw_user_url The user's URL.
2360       */
2361      $user_url = apply_filters( 'pre_user_url', $raw_user_url );
2362  
2363      if ( mb_strlen( $user_url ) > 100 ) {
2364          return new WP_Error( 'user_url_too_long', __( 'User URL may not be longer than 100 characters.' ) );
2365      }
2366  
2367      $user_registered = empty( $userdata['user_registered'] ) ? gmdate( 'Y-m-d H:i:s' ) : $userdata['user_registered'];
2368  
2369      $user_activation_key = empty( $userdata['user_activation_key'] ) ? '' : $userdata['user_activation_key'];
2370  
2371      if ( ! empty( $userdata['spam'] ) && ! is_multisite() ) {
2372          return new WP_Error( 'no_spam', __( 'Sorry, marking a user as spam is only supported on Multisite.' ) );
2373      }
2374  
2375      $spam = empty( $userdata['spam'] ) ? 0 : (bool) $userdata['spam'];
2376  
2377      // Store values to save in user meta.
2378      $meta = array();
2379  
2380      $nickname = empty( $userdata['nickname'] ) ? $user_login : $userdata['nickname'];
2381  
2382      /**
2383       * Filters a user's nickname before the user is created or updated.
2384       *
2385       * @since 2.0.3
2386       *
2387       * @param string $nickname The user's nickname.
2388       */
2389      $meta['nickname'] = apply_filters( 'pre_user_nickname', $nickname );
2390  
2391      $first_name = empty( $userdata['first_name'] ) ? '' : $userdata['first_name'];
2392  
2393      /**
2394       * Filters a user's first name before the user is created or updated.
2395       *
2396       * @since 2.0.3
2397       *
2398       * @param string $first_name The user's first name.
2399       */
2400      $meta['first_name'] = apply_filters( 'pre_user_first_name', $first_name );
2401  
2402      $last_name = empty( $userdata['last_name'] ) ? '' : $userdata['last_name'];
2403  
2404      /**
2405       * Filters a user's last name before the user is created or updated.
2406       *
2407       * @since 2.0.3
2408       *
2409       * @param string $last_name The user's last name.
2410       */
2411      $meta['last_name'] = apply_filters( 'pre_user_last_name', $last_name );
2412  
2413      if ( empty( $userdata['display_name'] ) ) {
2414          if ( $update ) {
2415              $display_name = $user_login;
2416          } elseif ( $meta['first_name'] && $meta['last_name'] ) {
2417              $display_name = sprintf(
2418                  /* translators: 1: User's first name, 2: Last name. */
2419                  _x( '%1$s %2$s', 'Display name based on first name and last name' ),
2420                  $meta['first_name'],
2421                  $meta['last_name']
2422              );
2423          } elseif ( $meta['first_name'] ) {
2424              $display_name = $meta['first_name'];
2425          } elseif ( $meta['last_name'] ) {
2426              $display_name = $meta['last_name'];
2427          } else {
2428              $display_name = $user_login;
2429          }
2430      } else {
2431          $display_name = $userdata['display_name'];
2432      }
2433  
2434      /**
2435       * Filters a user's display name before the user is created or updated.
2436       *
2437       * @since 2.0.3
2438       *
2439       * @param string $display_name The user's display name.
2440       */
2441      $display_name = apply_filters( 'pre_user_display_name', $display_name );
2442  
2443      $description = empty( $userdata['description'] ) ? '' : $userdata['description'];
2444  
2445      /**
2446       * Filters a user's description before the user is created or updated.
2447       *
2448       * @since 2.0.3
2449       *
2450       * @param string $description The user's description.
2451       */
2452      $meta['description'] = apply_filters( 'pre_user_description', $description );
2453  
2454      $meta['rich_editing'] = empty( $userdata['rich_editing'] ) ? 'true' : $userdata['rich_editing'];
2455  
2456      $meta['syntax_highlighting'] = empty( $userdata['syntax_highlighting'] ) ? 'true' : $userdata['syntax_highlighting'];
2457  
2458      $meta['comment_shortcuts'] = empty( $userdata['comment_shortcuts'] ) || 'false' === $userdata['comment_shortcuts'] ? 'false' : 'true';
2459  
2460      $admin_color         = empty( $userdata['admin_color'] ) ? 'fresh' : $userdata['admin_color'];
2461      $meta['admin_color'] = preg_replace( '|[^a-z0-9 _.\-@]|i', '', $admin_color );
2462  
2463      $meta['use_ssl'] = empty( $userdata['use_ssl'] ) ? '0' : '1';
2464  
2465      $meta['show_admin_bar_front'] = empty( $userdata['show_admin_bar_front'] ) ? 'true' : $userdata['show_admin_bar_front'];
2466  
2467      $meta['locale'] = isset( $userdata['locale'] ) ? $userdata['locale'] : '';
2468  
2469      $compacted = compact( 'user_pass', 'user_nicename', 'user_email', 'user_url', 'user_registered', 'user_activation_key', 'display_name' );
2470      $data      = wp_unslash( $compacted );
2471  
2472      if ( ! $update ) {
2473          $data = $data + compact( 'user_login' );
2474      }
2475  
2476      if ( is_multisite() ) {
2477          $data = $data + compact( 'spam' );
2478      }
2479  
2480      /**
2481       * Filters user data before the record is created or updated.
2482       *
2483       * It only includes data in the users table, not any user metadata.
2484       *
2485       * @since 4.9.0
2486       * @since 5.8.0 The `$userdata` parameter was added.
2487       * @since 6.8.0 The user's password is now hashed using bcrypt by default instead of phpass.
2488       *
2489       * @param array    $data {
2490       *     Values and keys for the user.
2491       *
2492       *     @type string $user_login      The user's login. Only included if $update == false
2493       *     @type string $user_pass       The user's password.
2494       *     @type string $user_email      The user's email.
2495       *     @type string $user_url        The user's url.
2496       *     @type string $user_nicename   The user's nice name. Defaults to a URL-safe version of user's login.
2497       *     @type string $display_name    The user's display name.
2498       *     @type string $user_registered MySQL timestamp describing the moment when the user registered. Defaults to
2499       *                                   the current UTC timestamp.
2500       * }
2501       * @param bool     $update   Whether the user is being updated rather than created.
2502       * @param int|null $user_id  ID of the user to be updated, or NULL if the user is being created.
2503       * @param array    $userdata The raw array of data passed to wp_insert_user().
2504       */
2505      $data = apply_filters( 'wp_pre_insert_user_data', $data, $update, ( $update ? $user_id : null ), $userdata );
2506  
2507      if ( empty( $data ) || ! is_array( $data ) ) {
2508          return new WP_Error( 'empty_data', __( 'Not enough data to create this user.' ) );
2509      }
2510  
2511      if ( $update ) {
2512          if ( $user_email !== $old_user_data->user_email || $user_pass !== $old_user_data->user_pass ) {
2513              $data['user_activation_key'] = '';
2514          }
2515          $wpdb->update( $wpdb->users, $data, array( 'ID' => $user_id ) );
2516      } else {
2517          $wpdb->insert( $wpdb->users, $data );
2518          $user_id = (int) $wpdb->insert_id;
2519      }
2520  
2521      $user = new WP_User( $user_id );
2522  
2523      if ( ! $update ) {
2524          /** This action is documented in wp-includes/pluggable.php */
2525          do_action( 'wp_set_password', $userdata['user_pass'], $user_id, $user );
2526      }
2527  
2528      /**
2529       * Filters a user's meta values and keys immediately after the user is created or updated
2530       * and before any user meta is inserted or updated.
2531       *
2532       * Does not include contact methods. These are added using `wp_get_user_contact_methods( $user )`.
2533       *
2534       * For custom meta fields, see the {@see 'insert_custom_user_meta'} filter.
2535       *
2536       * @since 4.4.0
2537       * @since 5.8.0 The `$userdata` parameter was added.
2538       *
2539       * @param array $meta {
2540       *     Default meta values and keys for the user.
2541       *
2542       *     @type string   $nickname             The user's nickname. Default is the user's username.
2543       *     @type string   $first_name           The user's first name.
2544       *     @type string   $last_name            The user's last name.
2545       *     @type string   $description          The user's description.
2546       *     @type string   $rich_editing         Whether to enable the rich-editor for the user. Default 'true'.
2547       *     @type string   $syntax_highlighting  Whether to enable the rich code editor for the user. Default 'true'.
2548       *     @type string   $comment_shortcuts    Whether to enable keyboard shortcuts for the user. Default 'false'.
2549       *     @type string   $admin_color          The color scheme for a user's admin screen. Default 'fresh'.
2550       *     @type int|bool $use_ssl              Whether to force SSL on the user's admin area. 0|false if SSL
2551       *                                          is not forced.
2552       *     @type string   $show_admin_bar_front Whether to show the admin bar on the front end for the user.
2553       *                                          Default 'true'.
2554       *     @type string   $locale               User's locale. Default empty.
2555       * }
2556       * @param WP_User $user     User object.
2557       * @param bool    $update   Whether the user is being updated rather than created.
2558       * @param array   $userdata The raw array of data passed to wp_insert_user().
2559       */
2560      $meta = apply_filters( 'insert_user_meta', $meta, $user, $update, $userdata );
2561  
2562      $custom_meta = array();
2563      if ( array_key_exists( 'meta_input', $userdata ) && is_array( $userdata['meta_input'] ) && ! empty( $userdata['meta_input'] ) ) {
2564          $custom_meta = $userdata['meta_input'];
2565      }
2566  
2567      /**
2568       * Filters a user's custom meta values and keys immediately after the user is created or updated
2569       * and before any user meta is inserted or updated.
2570       *
2571       * For non-custom meta fields, see the {@see 'insert_user_meta'} filter.
2572       *
2573       * @since 5.9.0
2574       *
2575       * @param array   $custom_meta Array of custom user meta values keyed by meta key.
2576       * @param WP_User $user        User object.
2577       * @param bool    $update      Whether the user is being updated rather than created.
2578       * @param array   $userdata    The raw array of data passed to wp_insert_user().
2579       */
2580      $custom_meta = apply_filters( 'insert_custom_user_meta', $custom_meta, $user, $update, $userdata );
2581  
2582      $meta = array_merge( $meta, $custom_meta );
2583  
2584      if ( $update ) {
2585          // Update user meta.
2586          foreach ( $meta as $key => $value ) {
2587              update_user_meta( $user_id, $key, $value );
2588          }
2589      } else {
2590          // Add user meta.
2591          foreach ( $meta as $key => $value ) {
2592              add_user_meta( $user_id, $key, $value );
2593          }
2594      }
2595  
2596      foreach ( wp_get_user_contact_methods( $user ) as $key => $value ) {
2597          if ( isset( $userdata[ $key ] ) ) {
2598              update_user_meta( $user_id, $key, $userdata[ $key ] );
2599          }
2600      }
2601  
2602      if ( isset( $userdata['role'] ) ) {
2603          $user->set_role( $userdata['role'] );
2604      } elseif ( ! $update ) {
2605          $user->set_role( get_option( 'default_role' ) );
2606      }
2607  
2608      clean_user_cache( $user_id );
2609  
2610      if ( $update ) {
2611          /**
2612           * Fires immediately after an existing user is updated.
2613           *
2614           * @since 2.0.0
2615           * @since 5.8.0 The `$userdata` parameter was added.
2616           *
2617           * @param int     $user_id       User ID.
2618           * @param WP_User $old_user_data Object containing user's data prior to update.
2619           * @param array   $userdata      The raw array of data passed to wp_insert_user().
2620           */
2621          do_action( 'profile_update', $user_id, $old_user_data, $userdata );
2622  
2623          if ( isset( $userdata['spam'] ) && $userdata['spam'] !== $old_user_data->spam ) {
2624              if ( '1' === $userdata['spam'] ) {
2625                  /**
2626                   * Fires after the user is marked as a SPAM user.
2627                   *
2628                   * @since 3.0.0
2629                   *
2630                   * @param int $user_id ID of the user marked as SPAM.
2631                   */
2632                  do_action( 'make_spam_user', $user_id );
2633              } else {
2634                  /**
2635                   * Fires after the user is marked as a HAM user. Opposite of SPAM.
2636                   *
2637                   * @since 3.0.0
2638                   *
2639                   * @param int $user_id ID of the user marked as HAM.
2640                   */
2641                  do_action( 'make_ham_user', $user_id );
2642              }
2643          }
2644      } else {
2645          /**
2646           * Fires immediately after a new user is registered.
2647           *
2648           * @since 1.5.0
2649           * @since 5.8.0 The `$userdata` parameter was added.
2650           *
2651           * @param int   $user_id  User ID.
2652           * @param array $userdata The raw array of data passed to wp_insert_user().
2653           */
2654          do_action( 'user_register', $user_id, $userdata );
2655      }
2656  
2657      return $user_id;
2658  }
2659  
2660  /**
2661   * Updates a user in the database.
2662   *
2663   * It is possible to update a user's password by specifying the 'user_pass'
2664   * value in the $userdata parameter array.
2665   *
2666   * If current user's password is being updated, then the cookies will be
2667   * cleared.
2668   *
2669   * @since 2.0.0
2670   *
2671   * @see wp_insert_user() For what fields can be set in $userdata.
2672   *
2673   * @param array|object|WP_User $userdata An array of user data or a user object of type stdClass or WP_User.
2674   * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
2675   */
2676  function wp_update_user( $userdata ) {
2677      if ( $userdata instanceof stdClass ) {
2678          $userdata = get_object_vars( $userdata );
2679      } elseif ( $userdata instanceof WP_User ) {
2680          $userdata = $userdata->to_array();
2681      }
2682  
2683      $userdata_raw = $userdata;
2684  
2685      $user_id = isset( $userdata['ID'] ) ? (int) $userdata['ID'] : 0;
2686      if ( ! $user_id ) {
2687          return new WP_Error( 'invalid_user_id', __( 'Invalid user ID.' ) );
2688      }
2689  
2690      // First, get all of the original fields.
2691      $user_obj = get_userdata( $user_id );
2692      if ( ! $user_obj ) {
2693          return new WP_Error( 'invalid_user_id', __( 'Invalid user ID.' ) );
2694      }
2695  
2696      $user = $user_obj->to_array();
2697  
2698      // Add additional custom fields.
2699      foreach ( _get_additional_user_keys( $user_obj ) as $key ) {
2700          $user[ $key ] = get_user_meta( $user_id, $key, true );
2701      }
2702  
2703      // Escape data pulled from DB.
2704      $user = add_magic_quotes( $user );
2705  
2706      if ( ! empty( $userdata['user_pass'] ) && $userdata['user_pass'] !== $user_obj->user_pass ) {
2707          // If password is changing, hash it now.
2708          $plaintext_pass        = $userdata['user_pass'];
2709          $userdata['user_pass'] = wp_hash_password( $userdata['user_pass'] );
2710  
2711          /** This action is documented in wp-includes/pluggable.php */
2712          do_action( 'wp_set_password', $plaintext_pass, $user_id, $user_obj );
2713  
2714          /**
2715           * Filters whether to send the password change email.
2716           *
2717           * @since 4.3.0
2718           *
2719           * @see wp_insert_user() For `$user` and `$userdata` fields.
2720           *
2721           * @param bool  $send     Whether to send the email.
2722           * @param array $user     The original user array.
2723           * @param array $userdata The updated user array.
2724           */
2725          $send_password_change_email = apply_filters( 'send_password_change_email', true, $user, $userdata );
2726      }
2727  
2728      if ( isset( $userdata['user_email'] ) && $user['user_email'] !== $userdata['user_email'] ) {
2729          /**
2730           * Filters whether to send the email change email.
2731           *
2732           * @since 4.3.0
2733           *
2734           * @see wp_insert_user() For `$user` and `$userdata` fields.
2735           *
2736           * @param bool  $send     Whether to send the email.
2737           * @param array $user     The original user array.
2738           * @param array $userdata The updated user array.
2739           */
2740          $send_email_change_email = apply_filters( 'send_email_change_email', true, $user, $userdata );
2741      }
2742  
2743      clean_user_cache( $user_obj );
2744  
2745      // Merge old and new fields with new fields overwriting old ones.
2746      $userdata = array_merge( $user, $userdata );
2747      $user_id  = wp_insert_user( $userdata );
2748  
2749      if ( is_wp_error( $user_id ) ) {
2750          return $user_id;
2751      }
2752  
2753      $blog_name = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES );
2754  
2755      $switched_locale = false;
2756      if ( ! empty( $send_password_change_email ) || ! empty( $send_email_change_email ) ) {
2757          $switched_locale = switch_to_user_locale( $user_id );
2758      }
2759  
2760      if ( ! empty( $send_password_change_email ) ) {
2761          /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
2762          $pass_change_text = __(
2763              'Hi ###USERNAME###,
2764  
2765  This notice confirms that your password was changed on ###SITENAME###.
2766  
2767  If you did not change your password, please contact the Site Administrator at
2768  ###ADMIN_EMAIL###
2769  
2770  This email has been sent to ###EMAIL###
2771  
2772  Regards,
2773  All at ###SITENAME###
2774  ###SITEURL###'
2775          );
2776  
2777          $pass_change_email = array(
2778              'to'      => $user['user_email'],
2779              /* translators: Password change notification email subject. %s: Site title. */
2780              'subject' => __( '[%s] Password Changed' ),
2781              'message' => $pass_change_text,
2782              'headers' => '',
2783          );
2784  
2785          /**
2786           * Filters the contents of the email sent when the user's password is changed.
2787           *
2788           * @since 4.3.0
2789           *
2790           * @param array $pass_change_email {
2791           *     Used to build wp_mail().
2792           *
2793           *     @type string $to      The intended recipients. Add emails in a comma separated string.
2794           *     @type string $subject The subject of the email.
2795           *     @type string $message The content of the email.
2796           *         The following strings have a special meaning and will get replaced dynamically:
2797           *          - `###USERNAME###`    The current user's username.
2798           *          - `###ADMIN_EMAIL###` The admin email in case this was unexpected.
2799           *          - `###EMAIL###`       The user's email address.
2800           *          - `###SITENAME###`    The name of the site.
2801           *          - `###SITEURL###`     The URL to the site.
2802           *     @type string $headers Headers. Add headers in a newline (\r\n) separated string.
2803           * }
2804           * @param array $user     The original user array.
2805           * @param array $userdata The updated user array.
2806           */
2807          $pass_change_email = apply_filters( 'password_change_email', $pass_change_email, $user, $userdata );
2808  
2809          $pass_change_email['message'] = str_replace( '###USERNAME###', $user['user_login'], $pass_change_email['message'] );
2810          $pass_change_email['message'] = str_replace( '###ADMIN_EMAIL###', get_option( 'admin_email' ), $pass_change_email['message'] );
2811          $pass_change_email['message'] = str_replace( '###EMAIL###', $user['user_email'], $pass_change_email['message'] );
2812          $pass_change_email['message'] = str_replace( '###SITENAME###', $blog_name, $pass_change_email['message'] );
2813          $pass_change_email['message'] = str_replace( '###SITEURL###', home_url(), $pass_change_email['message'] );
2814  
2815          wp_mail( $pass_change_email['to'], sprintf( $pass_change_email['subject'], $blog_name ), $pass_change_email['message'], $pass_change_email['headers'] );
2816      }
2817  
2818      if ( ! empty( $send_email_change_email ) ) {
2819          /* translators: Do not translate USERNAME, ADMIN_EMAIL, NEW_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
2820          $email_change_text = __(
2821              'Hi ###USERNAME###,
2822  
2823  This notice confirms that your email address on ###SITENAME### was changed to ###NEW_EMAIL###.
2824  
2825  If you did not change your email, please contact the Site Administrator at
2826  ###ADMIN_EMAIL###
2827  
2828  This email has been sent to ###EMAIL###
2829  
2830  Regards,
2831  All at ###SITENAME###
2832  ###SITEURL###'
2833          );
2834  
2835          $email_change_email = array(
2836              'to'      => $user['user_email'],
2837              /* translators: Email change notification email subject. %s: Site title. */
2838              'subject' => __( '[%s] Email Changed' ),
2839              'message' => $email_change_text,
2840              'headers' => '',
2841          );
2842  
2843          /**
2844           * Filters the contents of the email sent when the user's email is changed.
2845           *
2846           * @since 4.3.0
2847           *
2848           * @param array $email_change_email {
2849           *     Used to build wp_mail().
2850           *
2851           *     @type string $to      The intended recipients.
2852           *     @type string $subject The subject of the email.
2853           *     @type string $message The content of the email.
2854           *         The following strings have a special meaning and will get replaced dynamically:
2855           *          - `###USERNAME###`    The current user's username.
2856           *          - `###ADMIN_EMAIL###` The admin email in case this was unexpected.
2857           *          - `###NEW_EMAIL###`   The new email address.
2858           *          - `###EMAIL###`       The old email address.
2859           *          - `###SITENAME###`    The name of the site.
2860           *          - `###SITEURL###`     The URL to the site.
2861           *     @type string $headers Headers.
2862           * }
2863           * @param array $user     The original user array.
2864           * @param array $userdata The updated user array.
2865           */
2866          $email_change_email = apply_filters( 'email_change_email', $email_change_email, $user, $userdata );
2867  
2868          $email_change_email['message'] = str_replace( '###USERNAME###', $user['user_login'], $email_change_email['message'] );
2869          $email_change_email['message'] = str_replace( '###ADMIN_EMAIL###', get_option( 'admin_email' ), $email_change_email['message'] );
2870          $email_change_email['message'] = str_replace( '###NEW_EMAIL###', $userdata['user_email'], $email_change_email['message'] );
2871          $email_change_email['message'] = str_replace( '###EMAIL###', $user['user_email'], $email_change_email['message'] );
2872          $email_change_email['message'] = str_replace( '###SITENAME###', $blog_name, $email_change_email['message'] );
2873          $email_change_email['message'] = str_replace( '###SITEURL###', home_url(), $email_change_email['message'] );
2874  
2875          wp_mail( $email_change_email['to'], sprintf( $email_change_email['subject'], $blog_name ), $email_change_email['message'], $email_change_email['headers'] );
2876      }
2877  
2878      if ( $switched_locale ) {
2879          restore_previous_locale();
2880      }
2881  
2882      // Update the cookies if the password changed.
2883      $current_user = wp_get_current_user();
2884      if ( $current_user->ID === $user_id ) {
2885          if ( isset( $plaintext_pass ) ) {
2886              /*
2887               * Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
2888               * If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
2889               */
2890              $logged_in_cookie = wp_parse_auth_cookie( '', 'logged_in' );
2891              /** This filter is documented in wp-includes/pluggable.php */
2892              $default_cookie_life = apply_filters( 'auth_cookie_expiration', ( 2 * DAY_IN_SECONDS ), $user_id, false );
2893  
2894              wp_clear_auth_cookie();
2895  
2896              $remember = false;
2897              $token    = '';
2898  
2899              if ( false !== $logged_in_cookie ) {
2900                  $token = $logged_in_cookie['token'];
2901              }
2902  
2903              if ( false !== $logged_in_cookie && ( (int) $logged_in_cookie['expiration'] - time() ) > $default_cookie_life ) {
2904                  $remember = true;
2905              }
2906  
2907              wp_set_auth_cookie( $user_id, $remember, '', $token );
2908          }
2909      }
2910  
2911      /**
2912       * Fires after the user has been updated and emails have been sent.
2913       *
2914       * @since 6.3.0
2915       *
2916       * @param int   $user_id      The ID of the user that was just updated.
2917       * @param array $userdata     The array of user data that was updated.
2918       * @param array $userdata_raw The unedited array of user data that was updated.
2919       */
2920      do_action( 'wp_update_user', $user_id, $userdata, $userdata_raw );
2921  
2922      return $user_id;
2923  }
2924  
2925  /**
2926   * Provides a simpler way of inserting a user into the database.
2927   *
2928   * Creates a new user with just the username, password, and email. For more
2929   * complex user creation use wp_insert_user() to specify more information.
2930   *
2931   * @since 2.0.0
2932   *
2933   * @see wp_insert_user() More complete way to create a new user.
2934   *
2935   * @param string $username The user's username.
2936   * @param string $password The user's password.
2937   * @param string $email    Optional. The user's email. Default empty.
2938   * @return int|WP_Error The newly created user's ID or a WP_Error object if the user could not
2939   *                      be created.
2940   */
2941  function wp_create_user(
2942      $username,
2943      #[\SensitiveParameter]
2944      $password,
2945      $email = ''
2946  ) {
2947      $user_login = wp_slash( $username );
2948      $user_email = wp_slash( $email );
2949      $user_pass  = $password;
2950  
2951      $userdata = compact( 'user_login', 'user_email', 'user_pass' );
2952      return wp_insert_user( $userdata );
2953  }
2954  
2955  /**
2956   * Returns a list of meta keys to be (maybe) populated in wp_update_user().
2957   *
2958   * The list of keys returned via this function are dependent on the presence
2959   * of those keys in the user meta data to be set.
2960   *
2961   * @since 3.3.0
2962   * @access private
2963   *
2964   * @param WP_User $user WP_User instance.
2965   * @return string[] List of user keys to be populated in wp_update_user().
2966   */
2967  function _get_additional_user_keys( $user ) {
2968      $keys = array( 'first_name', 'last_name', 'nickname', 'description', 'rich_editing', 'syntax_highlighting', 'comment_shortcuts', 'admin_color', 'use_ssl', 'show_admin_bar_front', 'locale' );
2969      return array_merge( $keys, array_keys( wp_get_user_contact_methods( $user ) ) );
2970  }
2971  
2972  /**
2973   * Sets up the user contact methods.
2974   *
2975   * Default contact methods were removed for new installations in WordPress 3.6
2976   * and completely removed from the codebase in WordPress 6.9.
2977   *
2978   * Use the {@see 'user_contactmethods'} filter to add or remove contact methods.
2979   *
2980   * @since 3.7.0
2981   * @since 6.9.0 Removed references to `aim`, `jabber`, and `yim` contact methods.
2982   *
2983   * @param WP_User|null $user Optional. WP_User object.
2984   * @return string[] Array of contact method labels keyed by contact method.
2985   */
2986  function wp_get_user_contact_methods( $user = null ) {
2987      $methods = array();
2988  
2989      /**
2990       * Filters the user contact methods.
2991       *
2992       * @since 2.9.0
2993       *
2994       * @param string[]     $methods Array of contact method labels keyed by contact method.
2995       * @param WP_User|null $user    WP_User object or null if none was provided.
2996       */
2997      return apply_filters( 'user_contactmethods', $methods, $user );
2998  }
2999  
3000  /**
3001   * The old private function for setting up user contact methods.
3002   *
3003   * Use wp_get_user_contact_methods() instead.
3004   *
3005   * @since 2.9.0
3006   * @access private
3007   *
3008   * @param WP_User|null $user Optional. WP_User object. Default null.
3009   * @return string[] Array of contact method labels keyed by contact method.
3010   */
3011  function _wp_get_user_contactmethods( $user = null ) {
3012      return wp_get_user_contact_methods( $user );
3013  }
3014  
3015  /**
3016   * Gets the text suggesting how to create strong passwords.
3017   *
3018   * @since 4.1.0
3019   *
3020   * @return string The password hint text.
3021   */
3022  function wp_get_password_hint() {
3023      $hint = __( 'Hint: The password should be at least twelve characters long. To make it stronger, use upper and lower case letters, numbers, and symbols like ! " ? $ % ^ &amp; ).' );
3024  
3025      /**
3026       * Filters the text describing the site's password complexity policy.
3027       *
3028       * @since 4.1.0
3029       *
3030       * @param string $hint The password hint text.
3031       */
3032      return apply_filters( 'password_hint', $hint );
3033  }
3034  
3035  /**
3036   * Creates, stores, then returns a password reset key for user.
3037   *
3038   * @since 4.4.0
3039   *
3040   * @param WP_User $user User to retrieve password reset key for.
3041   * @return string|WP_Error Password reset key on success. WP_Error on error.
3042   */
3043  function get_password_reset_key( $user ) {
3044      if ( ! ( $user instanceof WP_User ) ) {
3045          return new WP_Error( 'invalidcombo', __( '<strong>Error:</strong> There is no account with that username or email address.' ) );
3046      }
3047  
3048      /**
3049       * Fires before a new password is retrieved.
3050       *
3051       * Use the {@see 'retrieve_password'} hook instead.
3052       *
3053       * @since 1.5.0
3054       * @deprecated 1.5.1 Misspelled. Use {@see 'retrieve_password'} hook instead.
3055       *
3056       * @param string $user_login The user login name.
3057       */
3058      do_action_deprecated( 'retreive_password', array( $user->user_login ), '1.5.1', 'retrieve_password' );
3059  
3060      /**
3061       * Fires before a new password is retrieved.
3062       *
3063       * @since 1.5.1
3064       *
3065       * @param string $user_login The user login name.
3066       */
3067      do_action( 'retrieve_password', $user->user_login );
3068  
3069      $password_reset_allowed = wp_is_password_reset_allowed_for_user( $user );
3070      if ( ! $password_reset_allowed ) {
3071          return new WP_Error( 'no_password_reset', __( 'Password reset is not allowed for this user' ) );
3072      } elseif ( is_wp_error( $password_reset_allowed ) ) {
3073          return $password_reset_allowed;
3074      }
3075  
3076      // Generate something random for a password reset key.
3077      $key = wp_generate_password( 20, false );
3078  
3079      /**
3080       * Fires when a password reset key is generated.
3081       *
3082       * @since 2.5.0
3083       *
3084       * @param string $user_login The username for the user.
3085       * @param string $key        The generated password reset key.
3086       */
3087      do_action( 'retrieve_password_key', $user->user_login, $key );
3088  
3089      $hashed = time() . ':' . wp_fast_hash( $key );
3090  
3091      $key_saved = wp_update_user(
3092          array(
3093              'ID'                  => $user->ID,
3094              'user_activation_key' => $hashed,
3095          )
3096      );
3097  
3098      if ( is_wp_error( $key_saved ) ) {
3099          return $key_saved;
3100      }
3101  
3102      return $key;
3103  }
3104  
3105  /**
3106   * Retrieves a user row based on password reset key and login.
3107   *
3108   * A key is considered 'expired' if it exactly matches the value of the
3109   * user_activation_key field, rather than being matched after going through the
3110   * hashing process. This field is now hashed; old values are no longer accepted
3111   * but have a different WP_Error code so good user feedback can be provided.
3112   *
3113   * @since 3.1.0
3114   *
3115   * @param string $key       The password reset key.
3116   * @param string $login     The user login.
3117   * @return WP_User|WP_Error WP_User object on success, WP_Error object for invalid or expired keys.
3118   */
3119  function check_password_reset_key(
3120      #[\SensitiveParameter]
3121      $key,
3122      $login
3123  ) {
3124      $key = preg_replace( '/[^a-z0-9]/i', '', $key );
3125  
3126      if ( empty( $key ) || ! is_string( $key ) ) {
3127          return new WP_Error( 'invalid_key', __( 'Invalid key.' ) );
3128      }
3129  
3130      if ( empty( $login ) || ! is_string( $login ) ) {
3131          return new WP_Error( 'invalid_key', __( 'Invalid key.' ) );
3132      }
3133  
3134      $user = get_user_by( 'login', $login );
3135  
3136      if ( ! $user ) {
3137          return new WP_Error( 'invalid_key', __( 'Invalid key.' ) );
3138      }
3139  
3140      /**
3141       * Filters the expiration time of password reset keys.
3142       *
3143       * @since 4.3.0
3144       *
3145       * @param int $expiration The expiration time in seconds.
3146       */
3147      $expiration_duration = apply_filters( 'password_reset_expiration', DAY_IN_SECONDS );
3148  
3149      if ( str_contains( $user->user_activation_key, ':' ) ) {
3150          list( $pass_request_time, $pass_key ) = explode( ':', $user->user_activation_key, 2 );
3151          $expiration_time                      = $pass_request_time + $expiration_duration;
3152      } else {
3153          $pass_key        = $user->user_activation_key;
3154          $expiration_time = false;
3155      }
3156  
3157      if ( ! $pass_key ) {
3158          return new WP_Error( 'invalid_key', __( 'Invalid key.' ) );
3159      }
3160  
3161      $hash_is_correct = wp_verify_fast_hash( $key, $pass_key );
3162  
3163      if ( $hash_is_correct && $expiration_time && time() < $expiration_time ) {
3164          return $user;
3165      } elseif ( $hash_is_correct && $expiration_time ) {
3166          // Key has an expiration time that's passed.
3167          return new WP_Error( 'expired_key', __( 'Invalid key.' ) );
3168      }
3169  
3170      if ( hash_equals( $user->user_activation_key, $key ) || ( $hash_is_correct && ! $expiration_time ) ) {
3171          $return  = new WP_Error( 'expired_key', __( 'Invalid key.' ) );
3172          $user_id = $user->ID;
3173  
3174          /**
3175           * Filters the return value of check_password_reset_key() when an
3176           * old-style key or an expired key is used.
3177           *
3178           * @since 3.7.0 Previously plain-text keys were stored in the database.
3179           * @since 4.3.0 Previously key hashes were stored without an expiration time.
3180           *
3181           * @param WP_Error $return  A WP_Error object denoting an expired key.
3182           *                          Return a WP_User object to validate the key.
3183           * @param int      $user_id The matched user ID.
3184           */
3185          return apply_filters( 'password_reset_key_expired', $return, $user_id );
3186      }
3187  
3188      return new WP_Error( 'invalid_key', __( 'Invalid key.' ) );
3189  }
3190  
3191  /**
3192   * Handles sending a password retrieval email to a user.
3193   *
3194   * @since 2.5.0
3195   * @since 5.7.0 Added `$user_login` parameter.
3196   *
3197   * @global wpdb $wpdb WordPress database abstraction object.
3198   *
3199   * @param string $user_login Optional. Username to send a password retrieval email for.
3200   *                           Defaults to `$_POST['user_login']` if not set.
3201   * @return true|WP_Error True when finished, WP_Error object on error.
3202   */
3203  function retrieve_password( $user_login = '' ) {
3204      $errors    = new WP_Error();
3205      $user_data = false;
3206  
3207      // Use the passed $user_login if available, otherwise use $_POST['user_login'].
3208      if ( ! $user_login && ! empty( $_POST['user_login'] ) && is_string( $_POST['user_login'] ) ) {
3209          $user_login = $_POST['user_login'];
3210      }
3211  
3212      $user_login = trim( wp_unslash( $user_login ) );
3213  
3214      if ( empty( $user_login ) ) {
3215          $errors->add( 'empty_username', __( '<strong>Error:</strong> Please enter a username or email address.' ) );
3216      } elseif ( strpos( $user_login, '@' ) ) {
3217          $user_data = get_user_by( 'email', $user_login );
3218  
3219          if ( empty( $user_data ) ) {
3220              $user_data = get_user_by( 'login', $user_login );
3221          }
3222  
3223          if ( empty( $user_data ) ) {
3224              $errors->add( 'invalid_email', __( '<strong>Error:</strong> There is no account with that username or email address.' ) );
3225          }
3226      } else {
3227          $user_data = get_user_by( 'login', $user_login );
3228      }
3229  
3230      /**
3231       * Filters the user data during a password reset request.
3232       *
3233       * Allows, for example, custom validation using data other than username or email address.
3234       *
3235       * @since 5.7.0
3236       *
3237       * @param WP_User|false $user_data WP_User object if found, false if the user does not exist.
3238       * @param WP_Error      $errors    A WP_Error object containing any errors generated
3239       *                                 by using invalid credentials.
3240       */
3241      $user_data = apply_filters( 'lostpassword_user_data', $user_data, $errors );
3242  
3243      /**
3244       * Fires before errors are returned from a password reset request.
3245       *
3246       * @since 2.1.0
3247       * @since 4.4.0 Added the `$errors` parameter.
3248       * @since 5.4.0 Added the `$user_data` parameter.
3249       *
3250       * @param WP_Error      $errors    A WP_Error object containing any errors generated
3251       *                                 by using invalid credentials.
3252       * @param WP_User|false $user_data WP_User object if found, false if the user does not exist.
3253       */
3254      do_action( 'lostpassword_post', $errors, $user_data );
3255  
3256      /**
3257       * Filters the errors encountered on a password reset request.
3258       *
3259       * The filtered WP_Error object may, for example, contain errors for an invalid
3260       * username or email address. A WP_Error object should always be returned,
3261       * but may or may not contain errors.
3262       *
3263       * If any errors are present in $errors, this will abort the password reset request.
3264       *
3265       * @since 5.5.0
3266       *
3267       * @param WP_Error      $errors    A WP_Error object containing any errors generated
3268       *                                 by using invalid credentials.
3269       * @param WP_User|false $user_data WP_User object if found, false if the user does not exist.
3270       */
3271      $errors = apply_filters( 'lostpassword_errors', $errors, $user_data );
3272  
3273      if ( $errors->has_errors() ) {
3274          return $errors;
3275      }
3276  
3277      if ( ! $user_data ) {
3278          $errors->add( 'invalidcombo', __( '<strong>Error:</strong> There is no account with that username or email address.' ) );
3279          return $errors;
3280      }
3281  
3282      /**
3283       * Filters whether to send the retrieve password email.
3284       *
3285       * Return false to disable sending the email.
3286       *
3287       * @since 6.0.0
3288       *
3289       * @param bool    $send       Whether to send the email.
3290       * @param string  $user_login The username for the user.
3291       * @param WP_User $user_data  WP_User object.
3292       */
3293      if ( ! apply_filters( 'send_retrieve_password_email', true, $user_login, $user_data ) ) {
3294          return true;
3295      }
3296  
3297      // Redefining user_login ensures we return the right case in the email.
3298      $user_login = $user_data->user_login;
3299      $user_email = $user_data->user_email;
3300      $key        = get_password_reset_key( $user_data );
3301  
3302      if ( is_wp_error( $key ) ) {
3303          return $key;
3304      }
3305  
3306      // Localize password reset message content for user.
3307      $locale = get_user_locale( $user_data );
3308  
3309      $switched_locale = switch_to_user_locale( $user_data->ID );
3310  
3311      if ( is_multisite() ) {
3312          $site_name = get_network()->site_name;
3313      } else {
3314          /*
3315           * The blogname option is escaped with esc_html on the way into the database
3316           * in sanitize_option. We want to reverse this for the plain text arena of emails.
3317           */
3318          $site_name = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES );
3319      }
3320  
3321      $message = __( 'Someone has requested a password reset for the following account:' ) . "\r\n\r\n";
3322      /* translators: %s: Site name. */
3323      $message .= sprintf( __( 'Site Name: %s' ), $site_name ) . "\r\n\r\n";
3324      /* translators: %s: User login. */
3325      $message .= sprintf( __( 'Username: %s' ), $user_login ) . "\r\n\r\n";
3326      $message .= __( 'If this was a mistake, ignore this email and nothing will happen.' ) . "\r\n\r\n";
3327      $message .= __( 'To reset your password, visit the following address:' ) . "\r\n\r\n";
3328  
3329      /*
3330       * Since some user login names end in a period, this could produce ambiguous URLs that
3331       * end in a period. To avoid the ambiguity, ensure that the login is not the last query
3332       * arg in the URL. If moving it to the end, a trailing period will need to be escaped.
3333       *
3334       * @see https://core.trac.wordpress.org/tickets/42957
3335       */
3336      $message .= network_site_url( 'wp-login.php?login=' . rawurlencode( $user_login ) . "&key=$key&action=rp", 'login' ) . '&wp_lang=' . $locale . "\r\n\r\n";
3337  
3338      if ( ! is_user_logged_in() ) {
3339          $requester_ip = $_SERVER['REMOTE_ADDR'];
3340          if ( $requester_ip ) {
3341              $message .= sprintf(
3342                  /* translators: %s: IP address of password reset requester. */
3343                  __( 'This password reset request originated from the IP address %s.' ),
3344                  $requester_ip
3345              ) . "\r\n";
3346          }
3347      }
3348  
3349      /* translators: Password reset notification email subject. %s: Site title. */
3350      $title = sprintf( __( '[%s] Password Reset' ), $site_name );
3351  
3352      /**
3353       * Filters the subject of the password reset email.
3354       *
3355       * @since 2.8.0
3356       * @since 4.4.0 Added the `$user_login` and `$user_data` parameters.
3357       *
3358       * @param string  $title      Email subject.
3359       * @param string  $user_login The username for the user.
3360       * @param WP_User $user_data  WP_User object.
3361       */
3362      $title = apply_filters( 'retrieve_password_title', $title, $user_login, $user_data );
3363  
3364      /**
3365       * Filters the message body of the password reset mail.
3366       *
3367       * If the filtered message is empty, the password reset email will not be sent.
3368       *
3369       * @since 2.8.0
3370       * @since 4.1.0 Added `$user_login` and `$user_data` parameters.
3371       *
3372       * @param string  $message    Email message.
3373       * @param string  $key        The activation key.
3374       * @param string  $user_login The username for the user.
3375       * @param WP_User $user_data  WP_User object.
3376       */
3377      $message = apply_filters( 'retrieve_password_message', $message, $key, $user_login, $user_data );
3378  
3379      // Short-circuit on falsey $message value for backwards compatibility.
3380      if ( ! $message ) {
3381          return true;
3382      }
3383  
3384      /*
3385       * Wrap the single notification email arguments in an array
3386       * to pass them to the retrieve_password_notification_email filter.
3387       */
3388      $defaults = array(
3389          'to'      => $user_email,
3390          'subject' => $title,
3391          'message' => $message,
3392          'headers' => '',
3393      );
3394  
3395      /**
3396       * Filters the contents of the reset password notification email sent to the user.
3397       *
3398       * @since 6.0.0
3399       *
3400       * @param array $defaults {
3401       *     The default notification email arguments. Used to build wp_mail().
3402       *
3403       *     @type string $to      The intended recipient - user email address.
3404       *     @type string $subject The subject of the email.
3405       *     @type string $message The body of the email.
3406       *     @type string $headers The headers of the email.
3407       * }
3408       * @param string  $key        The activation key.
3409       * @param string  $user_login The username for the user.
3410       * @param WP_User $user_data  WP_User object.
3411       */
3412      $notification_email = apply_filters( 'retrieve_password_notification_email', $defaults, $key, $user_login, $user_data );
3413  
3414      if ( $switched_locale ) {
3415          restore_previous_locale();
3416      }
3417  
3418      if ( is_array( $notification_email ) ) {
3419          // Force key order and merge defaults in case any value is missing in the filtered array.
3420          $notification_email = array_merge( $defaults, $notification_email );
3421      } else {
3422          $notification_email = $defaults;
3423      }
3424  
3425      list( $to, $subject, $message, $headers ) = array_values( $notification_email );
3426  
3427      $subject = wp_specialchars_decode( $subject );
3428  
3429      if ( ! wp_mail( $to, $subject, $message, $headers ) ) {
3430          $errors->add(
3431              'retrieve_password_email_failure',
3432              sprintf(
3433                  /* translators: %s: Documentation URL. */
3434                  __( '<strong>Error:</strong> The email could not be sent. Your site may not be correctly configured to send emails. <a href="%s">Get support for resetting your password</a>.' ),
3435                  esc_url( __( 'https://wordpress.org/documentation/article/reset-your-password/' ) )
3436              )
3437          );
3438          return $errors;
3439      }
3440  
3441      return true;
3442  }
3443  
3444  /**
3445   * Handles resetting the user's password.
3446   *
3447   * @since 2.5.0
3448   *
3449   * @param WP_User $user     The user
3450   * @param string  $new_pass New password for the user in plaintext
3451   */
3452  function reset_password(
3453      $user,
3454      #[\SensitiveParameter]
3455      $new_pass
3456  ) {
3457      /**
3458       * Fires before the user's password is reset.
3459       *
3460       * @since 1.5.0
3461       *
3462       * @param WP_User $user     The user.
3463       * @param string  $new_pass New user password.
3464       */
3465      do_action( 'password_reset', $user, $new_pass );
3466  
3467      wp_set_password( $new_pass, $user->ID );
3468      update_user_meta( $user->ID, 'default_password_nag', false );
3469  
3470      /**
3471       * Fires after the user's password is reset.
3472       *
3473       * @since 4.4.0
3474       *
3475       * @param WP_User $user     The user.
3476       * @param string  $new_pass New user password.
3477       */
3478      do_action( 'after_password_reset', $user, $new_pass );
3479  }
3480  
3481  /**
3482   * Handles registering a new user.
3483   *
3484   * @since 2.5.0
3485   *
3486   * @param string $user_login User's username for logging in
3487   * @param string $user_email User's email address to send password and add
3488   * @return int|WP_Error Either user's ID or error on failure.
3489   */
3490  function register_new_user( $user_login, $user_email ) {
3491      $errors = new WP_Error();
3492  
3493      $sanitized_user_login = sanitize_user( $user_login );
3494      /**
3495       * Filters the email address of a user being registered.
3496       *
3497       * @since 2.1.0
3498       *
3499       * @param string $user_email The email address of the new user.
3500       */
3501      $user_email = apply_filters( 'user_registration_email', $user_email );
3502  
3503      // Check the username.
3504      if ( '' === $sanitized_user_login ) {
3505          $errors->add( 'empty_username', __( '<strong>Error:</strong> Please enter a username.' ) );
3506      } elseif ( ! validate_username( $user_login ) ) {
3507          $errors->add( 'invalid_username', __( '<strong>Error:</strong> This username is invalid because it uses illegal characters. Please enter a valid username.' ) );
3508          $sanitized_user_login = '';
3509      } elseif ( username_exists( $sanitized_user_login ) ) {
3510          $errors->add( 'username_exists', __( '<strong>Error:</strong> This username is already registered. Please choose another one.' ) );
3511      } else {
3512          /** This filter is documented in wp-includes/user.php */
3513          $illegal_user_logins = (array) apply_filters( 'illegal_user_logins', array() );
3514          if ( in_array( strtolower( $sanitized_user_login ), array_map( 'strtolower', $illegal_user_logins ), true ) ) {
3515              $errors->add( 'invalid_username', __( '<strong>Error:</strong> Sorry, that username is not allowed.' ) );
3516          }
3517      }
3518  
3519      // Check the email address.
3520      if ( '' === $user_email ) {
3521          $errors->add( 'empty_email', __( '<strong>Error:</strong> Please type your email address.' ) );
3522      } elseif ( ! is_email( $user_email ) ) {
3523          $errors->add( 'invalid_email', __( '<strong>Error:</strong> The email address is not correct.' ) );
3524          $user_email = '';
3525      } elseif ( email_exists( $user_email ) ) {
3526          $errors->add(
3527              'email_exists',
3528              sprintf(
3529                  /* translators: %s: Link to the login page. */
3530                  __( '<strong>Error:</strong> This email address is already registered. <a href="%s">Log in</a> with this address or choose another one.' ),
3531                  wp_login_url()
3532              )
3533          );
3534      }
3535  
3536      /**
3537       * Fires when submitting registration form data, before the user is created.
3538       *
3539       * @since 2.1.0
3540       *
3541       * @param string   $sanitized_user_login The submitted username after being sanitized.
3542       * @param string   $user_email           The submitted email.
3543       * @param WP_Error $errors               Contains any errors with submitted username and email,
3544       *                                       e.g., an empty field, an invalid username or email,
3545       *                                       or an existing username or email.
3546       */
3547      do_action( 'register_post', $sanitized_user_login, $user_email, $errors );
3548  
3549      /**
3550       * Filters the errors encountered when a new user is being registered.
3551       *
3552       * The filtered WP_Error object may, for example, contain errors for an invalid
3553       * or existing username or email address. A WP_Error object should always be returned,
3554       * but may or may not contain errors.
3555       *
3556       * If any errors are present in $errors, this will abort the user's registration.
3557       *
3558       * @since 2.1.0
3559       *
3560       * @param WP_Error $errors               A WP_Error object containing any errors encountered
3561       *                                       during registration.
3562       * @param string   $sanitized_user_login User's username after it has been sanitized.
3563       * @param string   $user_email           User's email.
3564       */
3565      $errors = apply_filters( 'registration_errors', $errors, $sanitized_user_login, $user_email );
3566  
3567      if ( $errors->has_errors() ) {
3568          return $errors;
3569      }
3570  
3571      $user_pass = wp_generate_password( 12, false );
3572      $user_id   = wp_create_user( $sanitized_user_login, $user_pass, $user_email );
3573      if ( ! $user_id || is_wp_error( $user_id ) ) {
3574          $errors->add(
3575              'registerfail',
3576              sprintf(
3577                  /* translators: %s: Admin email address. */
3578                  __( '<strong>Error:</strong> Could not register you&hellip; please contact the <a href="mailto:%s">site admin</a>!' ),
3579                  get_option( 'admin_email' )
3580              )
3581          );
3582          return $errors;
3583      }
3584  
3585      update_user_meta( $user_id, 'default_password_nag', true ); // Set up the password change nag.
3586  
3587      if ( ! empty( $_COOKIE['wp_lang'] ) ) {
3588          $wp_lang = sanitize_text_field( $_COOKIE['wp_lang'] );
3589          if ( in_array( $wp_lang, get_available_languages(), true ) ) {
3590              update_user_meta( $user_id, 'locale', $wp_lang ); // Set user locale if defined on registration.
3591          }
3592      }
3593  
3594      /**
3595       * Fires after a new user registration has been recorded.
3596       *
3597       * @since 4.4.0
3598       *
3599       * @param int $user_id ID of the newly registered user.
3600       */
3601      do_action( 'register_new_user', $user_id );
3602  
3603      return $user_id;
3604  }
3605  
3606  /**
3607   * Initiates email notifications related to the creation of new users.
3608   *
3609   * Notifications are sent both to the site admin and to the newly created user.
3610   *
3611   * @since 4.4.0
3612   * @since 4.6.0 Converted the `$notify` parameter to accept 'user' for sending
3613   *              notifications only to the user created.
3614   *
3615   * @param int    $user_id ID of the newly created user.
3616   * @param string $notify  Optional. Type of notification that should happen. Accepts 'admin'
3617   *                        or an empty string (admin only), 'user', or 'both' (admin and user).
3618   *                        Default 'both'.
3619   */
3620  function wp_send_new_user_notifications( $user_id, $notify = 'both' ) {
3621      wp_new_user_notification( $user_id, null, $notify );
3622  }
3623  
3624  /**
3625   * Retrieves the current session token from the logged_in cookie.
3626   *
3627   * @since 4.0.0
3628   *
3629   * @return string Token.
3630   */
3631  function wp_get_session_token() {
3632      $cookie = wp_parse_auth_cookie( '', 'logged_in' );
3633      return ! empty( $cookie['token'] ) ? $cookie['token'] : '';
3634  }
3635  
3636  /**
3637   * Retrieves a list of sessions for the current user.
3638   *
3639   * @since 4.0.0
3640   *
3641   * @return array Array of sessions.
3642   */
3643  function wp_get_all_sessions() {
3644      $manager = WP_Session_Tokens::get_instance( get_current_user_id() );
3645      return $manager->get_all();
3646  }
3647  
3648  /**
3649   * Removes the current session token from the database.
3650   *
3651   * @since 4.0.0
3652   */
3653  function wp_destroy_current_session() {
3654      $token = wp_get_session_token();
3655      if ( $token ) {
3656          $manager = WP_Session_Tokens::get_instance( get_current_user_id() );
3657          $manager->destroy( $token );
3658      }
3659  }
3660  
3661  /**
3662   * Removes all but the current session token for the current user for the database.
3663   *
3664   * @since 4.0.0
3665   */
3666  function wp_destroy_other_sessions() {
3667      $token = wp_get_session_token();
3668      if ( $token ) {
3669          $manager = WP_Session_Tokens::get_instance( get_current_user_id() );
3670          $manager->destroy_others( $token );
3671      }
3672  }
3673  
3674  /**
3675   * Removes all session tokens for the current user from the database.
3676   *
3677   * @since 4.0.0
3678   */
3679  function wp_destroy_all_sessions() {
3680      $manager = WP_Session_Tokens::get_instance( get_current_user_id() );
3681      $manager->destroy_all();
3682  }
3683  
3684  /**
3685   * Gets the user IDs of all users with no role on this site.
3686   *
3687   * @since 4.4.0
3688   * @since 4.9.0 The `$site_id` parameter was added to support multisite.
3689   *
3690   * @global wpdb $wpdb WordPress database abstraction object.
3691   *
3692   * @param int|null $site_id Optional. The site ID to get users with no role for. Defaults to the current site.
3693   * @return string[] Array of user IDs as strings.
3694   */
3695  function wp_get_users_with_no_role( $site_id = null ) {
3696      global $wpdb;
3697  
3698      if ( ! $site_id ) {
3699          $site_id = get_current_blog_id();
3700      }
3701  
3702      $prefix = $wpdb->get_blog_prefix( $site_id );
3703  
3704      if ( is_multisite() && get_current_blog_id() !== $site_id ) {
3705          switch_to_blog( $site_id );
3706          $role_names = wp_roles()->get_names();
3707          restore_current_blog();
3708      } else {
3709          $role_names = wp_roles()->get_names();
3710      }
3711  
3712      $regex = implode( '|', array_keys( $role_names ) );
3713      $regex = preg_replace( '/[^a-zA-Z_\|-]/', '', $regex );
3714      $users = $wpdb->get_col(
3715          $wpdb->prepare(
3716              "SELECT user_id
3717              FROM $wpdb->usermeta
3718              WHERE meta_key = '{$prefix}capabilities'
3719              AND meta_value NOT REGEXP %s",
3720              $regex
3721          )
3722      );
3723  
3724      return $users;
3725  }
3726  
3727  /**
3728   * Retrieves the current user object.
3729   *
3730   * Will set the current user, if the current user is not set. The current user
3731   * will be set to the logged-in person. If no user is logged-in, then it will
3732   * set the current user to 0, which is invalid and won't have any permissions.
3733   *
3734   * This function is used by the pluggable functions wp_get_current_user() and
3735   * get_currentuserinfo(), the latter of which is deprecated but used for backward
3736   * compatibility.
3737   *
3738   * @since 4.5.0
3739   * @access private
3740   *
3741   * @see wp_get_current_user()
3742   * @global WP_User $current_user Checks if the current user is set.
3743   *
3744   * @return WP_User Current WP_User instance.
3745   */
3746  function _wp_get_current_user() {
3747      global $current_user;
3748  
3749      if ( ! empty( $current_user ) ) {
3750          if ( $current_user instanceof WP_User ) {
3751              return $current_user;
3752          }
3753  
3754          // Upgrade stdClass to WP_User.
3755          if ( is_object( $current_user ) && isset( $current_user->ID ) ) {
3756              $cur_id       = $current_user->ID;
3757              $current_user = null;
3758              wp_set_current_user( $cur_id );
3759              return $current_user;
3760          }
3761  
3762          // $current_user has a junk value. Force to WP_User with ID 0.
3763          $current_user = null;
3764          wp_set_current_user( 0 );
3765          return $current_user;
3766      }
3767  
3768      if ( defined( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST ) {
3769          wp_set_current_user( 0 );
3770          return $current_user;
3771      }
3772  
3773      /**
3774       * Filters the current user.
3775       *
3776       * The default filters use this to determine the current user from the
3777       * request's cookies, if available.
3778       *
3779       * Returning a value of false will effectively short-circuit setting
3780       * the current user.
3781       *
3782       * @since 3.9.0
3783       *
3784       * @param int|false $user_id User ID if one has been determined, false otherwise.
3785       */
3786      $user_id = apply_filters( 'determine_current_user', false );
3787      if ( ! $user_id ) {
3788          wp_set_current_user( 0 );
3789          return $current_user;
3790      }
3791  
3792      wp_set_current_user( $user_id );
3793  
3794      return $current_user;
3795  }
3796  
3797  /**
3798   * Sends a confirmation request email when a change of user email address is attempted.
3799   *
3800   * @since 3.0.0
3801   * @since 4.9.0 This function was moved from wp-admin/includes/ms.php so it's no longer Multisite specific.
3802   *
3803   * @global WP_Error $errors WP_Error object.
3804   */
3805  function send_confirmation_on_profile_email() {
3806      global $errors;
3807  
3808      $current_user = wp_get_current_user();
3809      if ( ! is_object( $errors ) ) {
3810          $errors = new WP_Error();
3811      }
3812  
3813      if ( $current_user->ID !== (int) $_POST['user_id'] ) {
3814          return false;
3815      }
3816  
3817      if ( $current_user->user_email !== $_POST['email'] ) {
3818          if ( ! is_email( $_POST['email'] ) ) {
3819              $errors->add(
3820                  'user_email',
3821                  __( '<strong>Error:</strong> The email address is not correct.' ),
3822                  array(
3823                      'form-field' => 'email',
3824                  )
3825              );
3826  
3827              return;
3828          }
3829  
3830          if ( email_exists( $_POST['email'] ) ) {
3831              $errors->add(
3832                  'user_email',
3833                  __( '<strong>Error:</strong> The email address is already used.' ),
3834                  array(
3835                      'form-field' => 'email',
3836                  )
3837              );
3838              delete_user_meta( $current_user->ID, '_new_email' );
3839  
3840              return;
3841          }
3842  
3843          $hash           = md5( $_POST['email'] . time() . wp_rand() );
3844          $new_user_email = array(
3845              'hash'     => $hash,
3846              'newemail' => $_POST['email'],
3847          );
3848          update_user_meta( $current_user->ID, '_new_email', $new_user_email );
3849  
3850          $sitename = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES );
3851  
3852          /* translators: Do not translate USERNAME, ADMIN_URL, EMAIL, SITENAME, SITEURL: those are placeholders. */
3853          $email_text = __(
3854              'Howdy ###USERNAME###,
3855  
3856  You recently requested to have the email address on your account changed.
3857  
3858  If this is correct, please click on the following link to change it:
3859  ###ADMIN_URL###
3860  
3861  You can safely ignore and delete this email if you do not want to
3862  take this action.
3863  
3864  This email has been sent to ###EMAIL###
3865  
3866  Regards,
3867  All at ###SITENAME###
3868  ###SITEURL###'
3869          );
3870  
3871          /**
3872           * Filters the text of the email sent when a change of user email address is attempted.
3873           *
3874           * The following strings have a special meaning and will get replaced dynamically:
3875           *
3876           *  - `###USERNAME###`  The current user's username.
3877           *  - `###ADMIN_URL###` The link to click on to confirm the email change.
3878           *  - `###EMAIL###`     The new email.
3879           *  - `###SITENAME###`  The name of the site.
3880           *  - `###SITEURL###`   The URL to the site.
3881           *
3882           * @since MU (3.0.0)
3883           * @since 4.9.0 This filter is no longer Multisite specific.
3884           *
3885           * @param string $email_text     Text in the email.
3886           * @param array  $new_user_email {
3887           *     Data relating to the new user email address.
3888           *
3889           *     @type string $hash     The secure hash used in the confirmation link URL.
3890           *     @type string $newemail The proposed new email address.
3891           * }
3892           */
3893          $content = apply_filters( 'new_user_email_content', $email_text, $new_user_email );
3894  
3895          $content = str_replace( '###USERNAME###', $current_user->user_login, $content );
3896          $content = str_replace( '###ADMIN_URL###', esc_url( self_admin_url( 'profile.php?newuseremail=' . $hash ) ), $content );
3897          $content = str_replace( '###EMAIL###', $_POST['email'], $content );
3898          $content = str_replace( '###SITENAME###', $sitename, $content );
3899          $content = str_replace( '###SITEURL###', home_url(), $content );
3900  
3901          /* translators: New email address notification email subject. %s: Site title. */
3902          wp_mail( $_POST['email'], sprintf( __( '[%s] Email Change Request' ), $sitename ), $content );
3903  
3904          $_POST['email'] = $current_user->user_email;
3905      }
3906  }
3907  
3908  /**
3909   * Adds an admin notice alerting the user to check for confirmation request email
3910   * after email address change.
3911   *
3912   * @since 3.0.0
3913   * @since 4.9.0 This function was moved from wp-admin/includes/ms.php so it's no longer Multisite specific.
3914   *
3915   * @global string $pagenow The filename of the current screen.
3916   */
3917  function new_user_email_admin_notice() {
3918      global $pagenow;
3919  
3920      if ( 'profile.php' === $pagenow && isset( $_GET['updated'] ) ) {
3921          $email = get_user_meta( get_current_user_id(), '_new_email', true );
3922          if ( $email ) {
3923              $message = sprintf(
3924                  /* translators: %s: New email address. */
3925                  __( 'Your email address has not been updated yet. Please check your inbox at %s for a confirmation email.' ),
3926                  '<code>' . esc_html( $email['newemail'] ) . '</code>'
3927              );
3928              wp_admin_notice( $message, array( 'type' => 'info' ) );
3929          }
3930      }
3931  }
3932  
3933  /**
3934   * Gets all personal data request types.
3935   *
3936   * @since 4.9.6
3937   * @access private
3938   *
3939   * @return string[] List of core privacy action types.
3940   */
3941  function _wp_privacy_action_request_types() {
3942      return array(
3943          'export_personal_data',
3944          'remove_personal_data',
3945      );
3946  }
3947  
3948  /**
3949   * Registers the personal data exporter for users.
3950   *
3951   * @since 4.9.6
3952   *
3953   * @param array[] $exporters An array of personal data exporters.
3954   * @return array[] An array of personal data exporters.
3955   */
3956  function wp_register_user_personal_data_exporter( $exporters ) {
3957      $exporters['wordpress-user'] = array(
3958          'exporter_friendly_name' => __( 'WordPress User' ),
3959          'callback'               => 'wp_user_personal_data_exporter',
3960      );
3961  
3962      return $exporters;
3963  }
3964  
3965  /**
3966   * Finds and exports personal data associated with an email address from the user and user_meta table.
3967   *
3968   * @since 4.9.6
3969   * @since 5.4.0 Added 'Community Events Location' group to the export data.
3970   * @since 5.4.0 Added 'Session Tokens' group to the export data.
3971   *
3972   * @param string $email_address  The user's email address.
3973   * @return array {
3974   *     An array of personal data.
3975   *
3976   *     @type array[] $data An array of personal data arrays.
3977   *     @type bool    $done Whether the exporter is finished.
3978   * }
3979   */
3980  function wp_user_personal_data_exporter( $email_address ) {
3981      $email_address = trim( $email_address );
3982  
3983      $data_to_export = array();
3984  
3985      $user = get_user_by( 'email', $email_address );
3986  
3987      if ( ! $user ) {
3988          return array(
3989              'data' => array(),
3990              'done' => true,
3991          );
3992      }
3993  
3994      $user_meta = get_user_meta( $user->ID );
3995  
3996      $user_props_to_export = array(
3997          'ID'              => __( 'User ID' ),
3998          'user_login'      => __( 'User Login Name' ),
3999          'user_nicename'   => __( 'User Nice Name' ),
4000          'user_email'      => __( 'User Email' ),
4001          'user_url'        => __( 'User URL' ),
4002          'user_registered' => __( 'User Registration Date' ),
4003          'display_name'    => __( 'User Display Name' ),
4004          'nickname'        => __( 'User Nickname' ),
4005          'first_name'      => __( 'User First Name' ),
4006          'last_name'       => __( 'User Last Name' ),
4007          'description'     => __( 'User Description' ),
4008      );
4009  
4010      $user_data_to_export = array();
4011  
4012      foreach ( $user_props_to_export as $key => $name ) {
4013          $value = '';
4014  
4015          switch ( $key ) {
4016              case 'ID':
4017              case 'user_login':
4018              case 'user_nicename':
4019              case 'user_email':
4020              case 'user_url':
4021              case 'user_registered':
4022              case 'display_name':
4023                  $value = $user->data->$key;
4024                  break;
4025              case 'nickname':
4026              case 'first_name':
4027              case 'last_name':
4028              case 'description':
4029                  $value = $user_meta[ $key ][0];
4030                  break;
4031          }
4032  
4033          if ( ! empty( $value ) ) {
4034              $user_data_to_export[] = array(
4035                  'name'  => $name,
4036                  'value' => $value,
4037              );
4038          }
4039      }
4040  
4041      // Get the list of reserved names.
4042      $reserved_names = array_values( $user_props_to_export );
4043  
4044      /**
4045       * Filters the user's profile data for the privacy exporter.
4046       *
4047       * @since 5.4.0
4048       *
4049       * @param array    $additional_user_profile_data {
4050       *     An array of name-value pairs of additional user data items. Default empty array.
4051       *
4052       *     @type string $name  The user-facing name of an item name-value pair,e.g. 'IP Address'.
4053       *     @type string $value The user-facing value of an item data pair, e.g. '50.60.70.0'.
4054       * }
4055       * @param WP_User  $user           The user whose data is being exported.
4056       * @param string[] $reserved_names An array of reserved names. Any item in `$additional_user_data`
4057       *                                 that uses one of these for its `name` will not be included in the export.
4058       */
4059      $_extra_data = apply_filters( 'wp_privacy_additional_user_profile_data', array(), $user, $reserved_names );
4060  
4061      if ( is_array( $_extra_data ) && ! empty( $_extra_data ) ) {
4062          // Remove items that use reserved names.
4063          $extra_data = array_filter(
4064              $_extra_data,
4065              static function ( $item ) use ( $reserved_names ) {
4066                  return ! in_array( $item['name'], $reserved_names, true );
4067              }
4068          );
4069  
4070          if ( count( $extra_data ) !== count( $_extra_data ) ) {
4071              _doing_it_wrong(
4072                  __FUNCTION__,
4073                  sprintf(
4074                      /* translators: %s: wp_privacy_additional_user_profile_data */
4075                      __( 'Filter %s returned items with reserved names.' ),
4076                      '<code>wp_privacy_additional_user_profile_data</code>'
4077                  ),
4078                  '5.4.0'
4079              );
4080          }
4081  
4082          if ( ! empty( $extra_data ) ) {
4083              $user_data_to_export = array_merge( $user_data_to_export, $extra_data );
4084          }
4085      }
4086  
4087      $data_to_export[] = array(
4088          'group_id'          => 'user',
4089          'group_label'       => __( 'User' ),
4090          'group_description' => __( 'User&#8217;s profile data.' ),
4091          'item_id'           => "user-{$user->ID}",
4092          'data'              => $user_data_to_export,
4093      );
4094  
4095      if ( isset( $user_meta['community-events-location'] ) ) {
4096          $location = maybe_unserialize( $user_meta['community-events-location'][0] );
4097  
4098          $location_props_to_export = array(
4099              'description' => __( 'City' ),
4100              'country'     => __( 'Country' ),
4101              'latitude'    => __( 'Latitude' ),
4102              'longitude'   => __( 'Longitude' ),
4103              'ip'          => __( 'IP' ),
4104          );
4105  
4106          $location_data_to_export = array();
4107  
4108          foreach ( $location_props_to_export as $key => $name ) {
4109              if ( ! empty( $location[ $key ] ) ) {
4110                  $location_data_to_export[] = array(
4111                      'name'  => $name,
4112                      'value' => $location[ $key ],
4113                  );
4114              }
4115          }
4116  
4117          $data_to_export[] = array(
4118              'group_id'          => 'community-events-location',
4119              'group_label'       => __( 'Community Events Location' ),
4120              'group_description' => __( 'User&#8217;s location data used for the Community Events in the WordPress Events and News dashboard widget.' ),
4121              'item_id'           => "community-events-location-{$user->ID}",
4122              'data'              => $location_data_to_export,
4123          );
4124      }
4125  
4126      if ( isset( $user_meta['session_tokens'] ) ) {
4127          $session_tokens = maybe_unserialize( $user_meta['session_tokens'][0] );
4128  
4129          $session_tokens_props_to_export = array(
4130              'expiration' => __( 'Expiration' ),
4131              'ip'         => __( 'IP' ),
4132              'ua'         => __( 'User Agent' ),
4133              'login'      => __( 'Last Login' ),
4134          );
4135  
4136          foreach ( $session_tokens as $token_key => $session_token ) {
4137              $session_tokens_data_to_export = array();
4138  
4139              foreach ( $session_tokens_props_to_export as $key => $name ) {
4140                  if ( ! empty( $session_token[ $key ] ) ) {
4141                      $value = $session_token[ $key ];
4142                      if ( in_array( $key, array( 'expiration', 'login' ), true ) ) {
4143                          $value = date_i18n( 'F d, Y H:i A', $value );
4144                      }
4145                      $session_tokens_data_to_export[] = array(
4146                          'name'  => $name,
4147                          'value' => $value,
4148                      );
4149                  }
4150              }
4151  
4152              $data_to_export[] = array(
4153                  'group_id'          => 'session-tokens',
4154                  'group_label'       => __( 'Session Tokens' ),
4155                  'group_description' => __( 'User&#8217;s Session Tokens data.' ),
4156                  'item_id'           => "session-tokens-{$user->ID}-{$token_key}",
4157                  'data'              => $session_tokens_data_to_export,
4158              );
4159          }
4160      }
4161  
4162      return array(
4163          'data' => $data_to_export,
4164          'done' => true,
4165      );
4166  }
4167  
4168  /**
4169   * Updates log when privacy request is confirmed.
4170   *
4171   * @since 4.9.6
4172   * @access private
4173   *
4174   * @param int $request_id ID of the request.
4175   */
4176  function _wp_privacy_account_request_confirmed( $request_id ) {
4177      $request = wp_get_user_request( $request_id );
4178  
4179      if ( ! $request ) {
4180          return;
4181      }
4182  
4183      if ( ! in_array( $request->status, array( 'request-pending', 'request-failed' ), true ) ) {
4184          return;
4185      }
4186  
4187      update_post_meta( $request_id, '_wp_user_request_confirmed_timestamp', time() );
4188      wp_update_post(
4189          array(
4190              'ID'          => $request_id,
4191              'post_status' => 'request-confirmed',
4192          )
4193      );
4194  }
4195  
4196  /**
4197   * Notifies the site administrator via email when a request is confirmed.
4198   *
4199   * Without this, the admin would have to manually check the site to see if any
4200   * action was needed on their part yet.
4201   *
4202   * @since 4.9.6
4203   *
4204   * @param int $request_id The ID of the request.
4205   */
4206  function _wp_privacy_send_request_confirmation_notification( $request_id ) {
4207      $request = wp_get_user_request( $request_id );
4208  
4209      if ( ! ( $request instanceof WP_User_Request ) || 'request-confirmed' !== $request->status ) {
4210          return;
4211      }
4212  
4213      $already_notified = (bool) get_post_meta( $request_id, '_wp_admin_notified', true );
4214  
4215      if ( $already_notified ) {
4216          return;
4217      }
4218  
4219      if ( 'export_personal_data' === $request->action_name ) {
4220          $manage_url = admin_url( 'export-personal-data.php' );
4221      } elseif ( 'remove_personal_data' === $request->action_name ) {
4222          $manage_url = admin_url( 'erase-personal-data.php' );
4223      }
4224      $action_description = wp_user_request_action_description( $request->action_name );
4225  
4226      /**
4227       * Filters the recipient of the data request confirmation notification.
4228       *
4229       * In a Multisite environment, this will default to the email address of the
4230       * network admin because, by default, single site admins do not have the
4231       * capabilities required to process requests. Some networks may wish to
4232       * delegate those capabilities to a single-site admin, or a dedicated person
4233       * responsible for managing privacy requests.
4234       *
4235       * @since 4.9.6
4236       *
4237       * @param string          $admin_email The email address of the notification recipient.
4238       * @param WP_User_Request $request     The request that is initiating the notification.
4239       */
4240      $admin_email = apply_filters( 'user_request_confirmed_email_to', get_site_option( 'admin_email' ), $request );
4241  
4242      $email_data = array(
4243          'request'     => $request,
4244          'user_email'  => $request->email,
4245          'description' => $action_description,
4246          'manage_url'  => $manage_url,
4247          'sitename'    => wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ),
4248          'siteurl'     => home_url(),
4249          'admin_email' => $admin_email,
4250      );
4251  
4252      $subject = sprintf(
4253          /* translators: Privacy data request confirmed notification email subject. 1: Site title, 2: Name of the confirmed action. */
4254          __( '[%1$s] Action Confirmed: %2$s' ),
4255          $email_data['sitename'],
4256          $action_description
4257      );
4258  
4259      /**
4260       * Filters the subject of the user request confirmation email.
4261       *
4262       * @since 4.9.8
4263       *
4264       * @param string $subject    The email subject.
4265       * @param string $sitename   The name of the site.
4266       * @param array  $email_data {
4267       *     Data relating to the account action email.
4268       *
4269       *     @type WP_User_Request $request     User request object.
4270       *     @type string          $user_email  The email address confirming a request.
4271       *     @type string          $description Description of the action being performed so the user knows what the email is for.
4272       *     @type string          $manage_url  The link to click manage privacy requests of this type.
4273       *     @type string          $sitename    The site name sending the mail.
4274       *     @type string          $siteurl     The site URL sending the mail.
4275       *     @type string          $admin_email The administrator email receiving the mail.
4276       * }
4277       */
4278      $subject = apply_filters( 'user_request_confirmed_email_subject', $subject, $email_data['sitename'], $email_data );
4279  
4280      /* translators: Do not translate SITENAME, USER_EMAIL, DESCRIPTION, MANAGE_URL, SITEURL; those are placeholders. */
4281      $content = __(
4282          'Howdy,
4283  
4284  A user data privacy request has been confirmed on ###SITENAME###:
4285  
4286  User: ###USER_EMAIL###
4287  Request: ###DESCRIPTION###
4288  
4289  You can view and manage these data privacy requests here:
4290  
4291  ###MANAGE_URL###
4292  
4293  Regards,
4294  All at ###SITENAME###
4295  ###SITEURL###'
4296      );
4297  
4298      /**
4299       * Filters the body of the user request confirmation email.
4300       *
4301       * The email is sent to an administrator when a user request is confirmed.
4302       *
4303       * The following strings have a special meaning and will get replaced dynamically:
4304       *
4305       *  - `###SITENAME###`    The name of the site.
4306       *  - `###USER_EMAIL###`  The user email for the request.
4307       *  - `###DESCRIPTION###` Description of the action being performed so the user knows what the email is for.
4308       *  - `###MANAGE_URL###`  The URL to manage requests.
4309       *  - `###SITEURL###`     The URL to the site.
4310       *
4311       * @since 4.9.6
4312       * @deprecated 5.8.0 Use {@see 'user_request_confirmed_email_content'} instead.
4313       *                   For user erasure fulfillment email content
4314       *                   use {@see 'user_erasure_fulfillment_email_content'} instead.
4315       *
4316       * @param string $content    The email content.
4317       * @param array  $email_data {
4318       *     Data relating to the account action email.
4319       *
4320       *     @type WP_User_Request $request     User request object.
4321       *     @type string          $user_email  The email address confirming a request.
4322       *     @type string          $description Description of the action being performed
4323       *                                        so the user knows what the email is for.
4324       *     @type string          $manage_url  The link to click manage privacy requests of this type.
4325       *     @type string          $sitename    The site name sending the mail.
4326       *     @type string          $siteurl     The site URL sending the mail.
4327       *     @type string          $admin_email The administrator email receiving the mail.
4328       * }
4329       */
4330      $content = apply_filters_deprecated(
4331          'user_confirmed_action_email_content',
4332          array( $content, $email_data ),
4333          '5.8.0',
4334          sprintf(
4335              /* translators: 1 & 2: Deprecation replacement options. */
4336              __( '%1$s or %2$s' ),
4337              'user_request_confirmed_email_content',
4338              'user_erasure_fulfillment_email_content'
4339          )
4340      );
4341  
4342      /**
4343       * Filters the body of the user request confirmation email.
4344       *
4345       * The email is sent to an administrator when a user request is confirmed.
4346       * The following strings have a special meaning and will get replaced dynamically:
4347       *
4348       *  - `###SITENAME###`    The name of the site.
4349       *  - `###USER_EMAIL###`  The user email for the request.
4350       *  - `###DESCRIPTION###` Description of the action being performed so the user knows what the email is for.
4351       *  - `###MANAGE_URL###`  The URL to manage requests.
4352       *  - `###SITEURL###`     The URL to the site.
4353       *
4354       * @since 5.8.0
4355       *
4356       * @param string $content    The email content.
4357       * @param array  $email_data {
4358       *     Data relating to the account action email.
4359       *
4360       *     @type WP_User_Request $request     User request object.
4361       *     @type string          $user_email  The email address confirming a request.
4362       *     @type string          $description Description of the action being performed so the user knows what the email is for.
4363       *     @type string          $manage_url  The link to click manage privacy requests of this type.
4364       *     @type string          $sitename    The site name sending the mail.
4365       *     @type string          $siteurl     The site URL sending the mail.
4366       *     @type string          $admin_email The administrator email receiving the mail.
4367       * }
4368       */
4369      $content = apply_filters( 'user_request_confirmed_email_content', $content, $email_data );
4370  
4371      $content = str_replace( '###SITENAME###', $email_data['sitename'], $content );
4372      $content = str_replace( '###USER_EMAIL###', $email_data['user_email'], $content );
4373      $content = str_replace( '###DESCRIPTION###', $email_data['description'], $content );
4374      $content = str_replace( '###MANAGE_URL###', sanitize_url( $email_data['manage_url'] ), $content );
4375      $content = str_replace( '###SITEURL###', sanitize_url( $email_data['siteurl'] ), $content );
4376  
4377      $headers = '';
4378  
4379      /**
4380       * Filters the headers of the user request confirmation email.
4381       *
4382       * @since 5.4.0
4383       *
4384       * @param string|array $headers    The email headers.
4385       * @param string       $subject    The email subject.
4386       * @param string       $content    The email content.
4387       * @param int          $request_id The request ID.
4388       * @param array        $email_data {
4389       *     Data relating to the account action email.
4390       *
4391       *     @type WP_User_Request $request     User request object.
4392       *     @type string          $user_email  The email address confirming a request.
4393       *     @type string          $description Description of the action being performed so the user knows what the email is for.
4394       *     @type string          $manage_url  The link to click manage privacy requests of this type.
4395       *     @type string          $sitename    The site name sending the mail.
4396       *     @type string          $siteurl     The site URL sending the mail.
4397       *     @type string          $admin_email The administrator email receiving the mail.
4398       * }
4399       */
4400      $headers = apply_filters( 'user_request_confirmed_email_headers', $headers, $subject, $content, $request_id, $email_data );
4401  
4402      $email_sent = wp_mail( $email_data['admin_email'], $subject, $content, $headers );
4403  
4404      if ( $email_sent ) {
4405          update_post_meta( $request_id, '_wp_admin_notified', true );
4406      }
4407  }
4408  
4409  /**
4410   * Notifies the user when their erasure request is fulfilled.
4411   *
4412   * Without this, the user would never know if their data was actually erased.
4413   *
4414   * @since 4.9.6
4415   *
4416   * @param int $request_id The privacy request post ID associated with this request.
4417   */
4418  function _wp_privacy_send_erasure_fulfillment_notification( $request_id ) {
4419      $request = wp_get_user_request( $request_id );
4420  
4421      if ( ! ( $request instanceof WP_User_Request ) || 'request-completed' !== $request->status ) {
4422          return;
4423      }
4424  
4425      $already_notified = (bool) get_post_meta( $request_id, '_wp_user_notified', true );
4426  
4427      if ( $already_notified ) {
4428          return;
4429      }
4430  
4431      // Localize message content for user; fallback to site default for visitors.
4432      if ( ! empty( $request->user_id ) ) {
4433          $switched_locale = switch_to_user_locale( $request->user_id );
4434      } else {
4435          $switched_locale = switch_to_locale( get_locale() );
4436      }
4437  
4438      /**
4439       * Filters the recipient of the data erasure fulfillment notification.
4440       *
4441       * @since 4.9.6
4442       *
4443       * @param string          $user_email The email address of the notification recipient.
4444       * @param WP_User_Request $request    The request that is initiating the notification.
4445       */
4446      $user_email = apply_filters( 'user_erasure_fulfillment_email_to', $request->email, $request );
4447  
4448      $email_data = array(
4449          'request'            => $request,
4450          'message_recipient'  => $user_email,
4451          'privacy_policy_url' => get_privacy_policy_url(),
4452          'sitename'           => wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ),
4453          'siteurl'            => home_url(),
4454      );
4455  
4456      $subject = sprintf(
4457          /* translators: Erasure request fulfilled notification email subject. %s: Site title. */
4458          __( '[%s] Erasure Request Fulfilled' ),
4459          $email_data['sitename']
4460      );
4461  
4462      /**
4463       * Filters the subject of the email sent when an erasure request is completed.
4464       *
4465       * @since 4.9.8
4466       * @deprecated 5.8.0 Use {@see 'user_erasure_fulfillment_email_subject'} instead.
4467       *
4468       * @param string $subject    The email subject.
4469       * @param string $sitename   The name of the site.
4470       * @param array  $email_data {
4471       *     Data relating to the account action email.
4472       *
4473       *     @type WP_User_Request $request            User request object.
4474       *     @type string          $message_recipient  The address that the email will be sent to. Defaults
4475       *                                               to the value of `$request->email`, but can be changed
4476       *                                               by the `user_erasure_fulfillment_email_to` filter.
4477       *     @type string          $privacy_policy_url Privacy policy URL.
4478       *     @type string          $sitename           The site name sending the mail.
4479       *     @type string          $siteurl            The site URL sending the mail.
4480       * }
4481       */
4482      $subject = apply_filters_deprecated(
4483          'user_erasure_complete_email_subject',
4484          array( $subject, $email_data['sitename'], $email_data ),
4485          '5.8.0',
4486          'user_erasure_fulfillment_email_subject'
4487      );
4488  
4489      /**
4490       * Filters the subject of the email sent when an erasure request is completed.
4491       *
4492       * @since 5.8.0
4493       *
4494       * @param string $subject    The email subject.
4495       * @param string $sitename   The name of the site.
4496       * @param array  $email_data {
4497       *     Data relating to the account action email.
4498       *
4499       *     @type WP_User_Request $request            User request object.
4500       *     @type string          $message_recipient  The address that the email will be sent to. Defaults
4501       *                                               to the value of `$request->email`, but can be changed
4502       *                                               by the `user_erasure_fulfillment_email_to` filter.
4503       *     @type string          $privacy_policy_url Privacy policy URL.
4504       *     @type string          $sitename           The site name sending the mail.
4505       *     @type string          $siteurl            The site URL sending the mail.
4506       * }
4507       */
4508      $subject = apply_filters( 'user_erasure_fulfillment_email_subject', $subject, $email_data['sitename'], $email_data );
4509  
4510      /* translators: Do not translate SITENAME, SITEURL; those are placeholders. */
4511      $content = __(
4512          'Howdy,
4513  
4514  Your request to erase your personal data on ###SITENAME### has been completed.
4515  
4516  If you have any follow-up questions or concerns, please contact the site administrator.
4517  
4518  Regards,
4519  All at ###SITENAME###
4520  ###SITEURL###'
4521      );
4522  
4523      if ( ! empty( $email_data['privacy_policy_url'] ) ) {
4524          /* translators: Do not translate SITENAME, SITEURL, PRIVACY_POLICY_URL; those are placeholders. */
4525          $content = __(
4526              'Howdy,
4527  
4528  Your request to erase your personal data on ###SITENAME### has been completed.
4529  
4530  If you have any follow-up questions or concerns, please contact the site administrator.
4531  
4532  For more information, you can also read our privacy policy: ###PRIVACY_POLICY_URL###
4533  
4534  Regards,
4535  All at ###SITENAME###
4536  ###SITEURL###'
4537          );
4538      }
4539  
4540      /**
4541       * Filters the body of the data erasure fulfillment notification.
4542       *
4543       * The email is sent to a user when their data erasure request is fulfilled
4544       * by an administrator.
4545       *
4546       * The following strings have a special meaning and will get replaced dynamically:
4547       *
4548       *  - `###SITENAME###`           The name of the site.
4549       *  - `###PRIVACY_POLICY_URL###` Privacy policy page URL.
4550       *  - `###SITEURL###`            The URL to the site.
4551       *
4552       * @since 4.9.6
4553       * @deprecated 5.8.0 Use {@see 'user_erasure_fulfillment_email_content'} instead.
4554       *                   For user request confirmation email content
4555       *                   use {@see 'user_request_confirmed_email_content'} instead.
4556       *
4557       * @param string $content The email content.
4558       * @param array  $email_data {
4559       *     Data relating to the account action email.
4560       *
4561       *     @type WP_User_Request $request            User request object.
4562       *     @type string          $message_recipient  The address that the email will be sent to. Defaults
4563       *                                               to the value of `$request->email`, but can be changed
4564       *                                               by the `user_erasure_fulfillment_email_to` filter.
4565       *     @type string          $privacy_policy_url Privacy policy URL.
4566       *     @type string          $sitename           The site name sending the mail.
4567       *     @type string          $siteurl            The site URL sending the mail.
4568       * }
4569       */
4570      $content = apply_filters_deprecated(
4571          'user_confirmed_action_email_content',
4572          array( $content, $email_data ),
4573          '5.8.0',
4574          sprintf(
4575              /* translators: 1 & 2: Deprecation replacement options. */
4576              __( '%1$s or %2$s' ),
4577              'user_erasure_fulfillment_email_content',
4578              'user_request_confirmed_email_content'
4579          )
4580      );
4581  
4582      /**
4583       * Filters the body of the data erasure fulfillment notification.
4584       *
4585       * The email is sent to a user when their data erasure request is fulfilled
4586       * by an administrator.
4587       *
4588       * The following strings have a special meaning and will get replaced dynamically:
4589       *
4590       *  - `###SITENAME###`           The name of the site.
4591       *  - `###PRIVACY_POLICY_URL###` Privacy policy page URL.
4592       *  - `###SITEURL###`            The URL to the site.
4593       *
4594       * @since 5.8.0
4595       *
4596       * @param string $content The email content.
4597       * @param array  $email_data {
4598       *     Data relating to the account action email.
4599       *
4600       *     @type WP_User_Request $request            User request object.
4601       *     @type string          $message_recipient  The address that the email will be sent to. Defaults
4602       *                                               to the value of `$request->email`, but can be changed
4603       *                                               by the `user_erasure_fulfillment_email_to` filter.
4604       *     @type string          $privacy_policy_url Privacy policy URL.
4605       *     @type string          $sitename           The site name sending the mail.
4606       *     @type string          $siteurl            The site URL sending the mail.
4607       * }
4608       */
4609      $content = apply_filters( 'user_erasure_fulfillment_email_content', $content, $email_data );
4610  
4611      $content = str_replace( '###SITENAME###', $email_data['sitename'], $content );
4612      $content = str_replace( '###PRIVACY_POLICY_URL###', $email_data['privacy_policy_url'], $content );
4613      $content = str_replace( '###SITEURL###', sanitize_url( $email_data['siteurl'] ), $content );
4614  
4615      $headers = '';
4616  
4617      /**
4618       * Filters the headers of the data erasure fulfillment notification.
4619       *
4620       * @since 5.4.0
4621       * @deprecated 5.8.0 Use {@see 'user_erasure_fulfillment_email_headers'} instead.
4622       *
4623       * @param string|array $headers    The email headers.
4624       * @param string       $subject    The email subject.
4625       * @param string       $content    The email content.
4626       * @param int          $request_id The request ID.
4627       * @param array        $email_data {
4628       *     Data relating to the account action email.
4629       *
4630       *     @type WP_User_Request $request            User request object.
4631       *     @type string          $message_recipient  The address that the email will be sent to. Defaults
4632       *                                               to the value of `$request->email`, but can be changed
4633       *                                               by the `user_erasure_fulfillment_email_to` filter.
4634       *     @type string          $privacy_policy_url Privacy policy URL.
4635       *     @type string          $sitename           The site name sending the mail.
4636       *     @type string          $siteurl            The site URL sending the mail.
4637       * }
4638       */
4639      $headers = apply_filters_deprecated(
4640          'user_erasure_complete_email_headers',
4641          array( $headers, $subject, $content, $request_id, $email_data ),
4642          '5.8.0',
4643          'user_erasure_fulfillment_email_headers'
4644      );
4645  
4646      /**
4647       * Filters the headers of the data erasure fulfillment notification.
4648       *
4649       * @since 5.8.0
4650       *
4651       * @param string|array $headers    The email headers.
4652       * @param string       $subject    The email subject.
4653       * @param string       $content    The email content.
4654       * @param int          $request_id The request ID.
4655       * @param array        $email_data {
4656       *     Data relating to the account action email.
4657       *
4658       *     @type WP_User_Request $request            User request object.
4659       *     @type string          $message_recipient  The address that the email will be sent to. Defaults
4660       *                                               to the value of `$request->email`, but can be changed
4661       *                                               by the `user_erasure_fulfillment_email_to` filter.
4662       *     @type string          $privacy_policy_url Privacy policy URL.
4663       *     @type string          $sitename           The site name sending the mail.
4664       *     @type string          $siteurl            The site URL sending the mail.
4665       * }
4666       */
4667      $headers = apply_filters( 'user_erasure_fulfillment_email_headers', $headers, $subject, $content, $request_id, $email_data );
4668  
4669      $email_sent = wp_mail( $user_email, $subject, $content, $headers );
4670  
4671      if ( $switched_locale ) {
4672          restore_previous_locale();
4673      }
4674  
4675      if ( $email_sent ) {
4676          update_post_meta( $request_id, '_wp_user_notified', true );
4677      }
4678  }
4679  
4680  /**
4681   * Returns request confirmation message HTML.
4682   *
4683   * @since 4.9.6
4684   * @access private
4685   *
4686   * @param int $request_id The request ID being confirmed.
4687   * @return string The confirmation message.
4688   */
4689  function _wp_privacy_account_request_confirmed_message( $request_id ) {
4690      $request = wp_get_user_request( $request_id );
4691  
4692      $message  = '<p class="success">' . __( 'Action has been confirmed.' ) . '</p>';
4693      $message .= '<p>' . __( 'The site administrator has been notified and will fulfill your request as soon as possible.' ) . '</p>';
4694  
4695      if ( $request && in_array( $request->action_name, _wp_privacy_action_request_types(), true ) ) {
4696          if ( 'export_personal_data' === $request->action_name ) {
4697              $message  = '<p class="success">' . __( 'Thanks for confirming your export request.' ) . '</p>';
4698              $message .= '<p>' . __( 'The site administrator has been notified. You will receive a link to download your export via email when they fulfill your request.' ) . '</p>';
4699          } elseif ( 'remove_personal_data' === $request->action_name ) {
4700              $message  = '<p class="success">' . __( 'Thanks for confirming your erasure request.' ) . '</p>';
4701              $message .= '<p>' . __( 'The site administrator has been notified. You will receive an email confirmation when they erase your data.' ) . '</p>';
4702          }
4703      }
4704  
4705      /**
4706       * Filters the message displayed to a user when they confirm a data request.
4707       *
4708       * @since 4.9.6
4709       *
4710       * @param string $message    The message to the user.
4711       * @param int    $request_id The ID of the request being confirmed.
4712       */
4713      $message = apply_filters( 'user_request_action_confirmed_message', $message, $request_id );
4714  
4715      return $message;
4716  }
4717  
4718  /**
4719   * Creates and logs a user request to perform a specific action.
4720   *
4721   * Requests are stored inside a post type named `user_request` since they can apply to both
4722   * users on the site, or guests without a user account.
4723   *
4724   * @since 4.9.6
4725   * @since 5.7.0 Added the `$status` parameter.
4726   *
4727   * @param string $email_address           User email address. This can be the address of a registered
4728   *                                        or non-registered user.
4729   * @param string $action_name             Name of the action that is being confirmed. Required.
4730   * @param array  $request_data            Misc data you want to send with the verification request and pass
4731   *                                        to the actions once the request is confirmed.
4732   * @param string $status                  Optional request status (pending or confirmed). Default 'pending'.
4733   * @return int|WP_Error                   Returns the request ID if successful, or a WP_Error object on failure.
4734   */
4735  function wp_create_user_request( $email_address = '', $action_name = '', $request_data = array(), $status = 'pending' ) {
4736      $email_address = sanitize_email( $email_address );
4737      $action_name   = sanitize_key( $action_name );
4738  
4739      if ( ! is_email( $email_address ) ) {
4740          return new WP_Error( 'invalid_email', __( 'Invalid email address.' ) );
4741      }
4742  
4743      if ( ! in_array( $action_name, _wp_privacy_action_request_types(), true ) ) {
4744          return new WP_Error( 'invalid_action', __( 'Invalid action name.' ) );
4745      }
4746  
4747      if ( ! in_array( $status, array( 'pending', 'confirmed' ), true ) ) {
4748          return new WP_Error( 'invalid_status', __( 'Invalid request status.' ) );
4749      }
4750  
4751      $user    = get_user_by( 'email', $email_address );
4752      $user_id = $user && ! is_wp_error( $user ) ? $user->ID : 0;
4753  
4754      // Check for duplicates.
4755      $requests_query = new WP_Query(
4756          array(
4757              'post_type'     => 'user_request',
4758              'post_name__in' => array( $action_name ), // Action name stored in post_name column.
4759              'title'         => $email_address,        // Email address stored in post_title column.
4760              'post_status'   => array(
4761                  'request-pending',
4762                  'request-confirmed',
4763              ),
4764              'fields'        => 'ids',
4765          )
4766      );
4767  
4768      if ( $requests_query->found_posts ) {
4769          return new WP_Error( 'duplicate_request', __( 'An incomplete personal data request for this email address already exists.' ) );
4770      }
4771  
4772      $request_id = wp_insert_post(
4773          array(
4774              'post_author'   => $user_id,
4775              'post_name'     => $action_name,
4776              'post_title'    => $email_address,
4777              'post_content'  => wp_json_encode( $request_data ),
4778              'post_status'   => 'request-' . $status,
4779              'post_type'     => 'user_request',
4780              'post_date'     => current_time( 'mysql', false ),
4781              'post_date_gmt' => current_time( 'mysql', true ),
4782          ),
4783          true
4784      );
4785  
4786      return $request_id;
4787  }
4788  
4789  /**
4790   * Gets action description from the name and return a string.
4791   *
4792   * @since 4.9.6
4793   *
4794   * @param string $action_name Action name of the request.
4795   * @return string Human readable action name.
4796   */
4797  function wp_user_request_action_description( $action_name ) {
4798      switch ( $action_name ) {
4799          case 'export_personal_data':
4800              $description = __( 'Export Personal Data' );
4801              break;
4802          case 'remove_personal_data':
4803              $description = __( 'Erase Personal Data' );
4804              break;
4805          default:
4806              /* translators: %s: Action name. */
4807              $description = sprintf( __( 'Confirm the "%s" action' ), $action_name );
4808              break;
4809      }
4810  
4811      /**
4812       * Filters the user action description.
4813       *
4814       * @since 4.9.6
4815       *
4816       * @param string $description The default description.
4817       * @param string $action_name The name of the request.
4818       */
4819      return apply_filters( 'user_request_action_description', $description, $action_name );
4820  }
4821  
4822  /**
4823   * Send a confirmation request email to confirm an action.
4824   *
4825   * If the request is not already pending, it will be updated.
4826   *
4827   * @since 4.9.6
4828   *
4829   * @param int $request_id ID of the request created via wp_create_user_request().
4830   * @return true|WP_Error True on success, `WP_Error` on failure.
4831   */
4832  function wp_send_user_request( $request_id ) {
4833      $request_id = absint( $request_id );
4834      $request    = wp_get_user_request( $request_id );
4835  
4836      if ( ! $request ) {
4837          return new WP_Error( 'invalid_request', __( 'Invalid personal data request.' ) );
4838      }
4839  
4840      // Localize message content for user; fallback to site default for visitors.
4841      if ( ! empty( $request->user_id ) ) {
4842          $switched_locale = switch_to_user_locale( $request->user_id );
4843      } else {
4844          $switched_locale = switch_to_locale( get_locale() );
4845      }
4846  
4847      $email_data = array(
4848          'request'     => $request,
4849          'email'       => $request->email,
4850          'description' => wp_user_request_action_description( $request->action_name ),
4851          'confirm_url' => add_query_arg(
4852              array(
4853                  'action'      => 'confirmaction',
4854                  'request_id'  => $request_id,
4855                  'confirm_key' => wp_generate_user_request_key( $request_id ),
4856              ),
4857              wp_login_url()
4858          ),
4859          'sitename'    => wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ),
4860          'siteurl'     => home_url(),
4861      );
4862  
4863      /* translators: Confirm privacy data request notification email subject. 1: Site title, 2: Name of the action. */
4864      $subject = sprintf( __( '[%1$s] Confirm Action: %2$s' ), $email_data['sitename'], $email_data['description'] );
4865  
4866      /**
4867       * Filters the subject of the email sent when an account action is attempted.
4868       *
4869       * @since 4.9.6
4870       *
4871       * @param string $subject    The email subject.
4872       * @param string $sitename   The name of the site.
4873       * @param array  $email_data {
4874       *     Data relating to the account action email.
4875       *
4876       *     @type WP_User_Request $request     User request object.
4877       *     @type string          $email       The email address this is being sent to.
4878       *     @type string          $description Description of the action being performed so the user knows what the email is for.
4879       *     @type string          $confirm_url The link to click on to confirm the account action.
4880       *     @type string          $sitename    The site name sending the mail.
4881       *     @type string          $siteurl     The site URL sending the mail.
4882       * }
4883       */
4884      $subject = apply_filters( 'user_request_action_email_subject', $subject, $email_data['sitename'], $email_data );
4885  
4886      /* translators: Do not translate DESCRIPTION, CONFIRM_URL, SITENAME, SITEURL: those are placeholders. */
4887      $content = __(
4888          'Howdy,
4889  
4890  A request has been made to perform the following action on your account:
4891  
4892       ###DESCRIPTION###
4893  
4894  To confirm this, please click on the following link:
4895  ###CONFIRM_URL###
4896  
4897  You can safely ignore and delete this email if you do not want to
4898  take this action.
4899  
4900  Regards,
4901  All at ###SITENAME###
4902  ###SITEURL###'
4903      );
4904  
4905      /**
4906       * Filters the text of the email sent when an account action is attempted.
4907       *
4908       * The following strings have a special meaning and will get replaced dynamically:
4909       *
4910       *  - `###DESCRIPTION###` Description of the action being performed so the user knows what the email is for.
4911       *  - `###CONFIRM_URL###` The link to click on to confirm the account action.
4912       *  - `###SITENAME###`    The name of the site.
4913       *  - `###SITEURL###`     The URL to the site.
4914       *
4915       * @since 4.9.6
4916       *
4917       * @param string $content Text in the email.
4918       * @param array  $email_data {
4919       *     Data relating to the account action email.
4920       *
4921       *     @type WP_User_Request $request     User request object.
4922       *     @type string          $email       The email address this is being sent to.
4923       *     @type string          $description Description of the action being performed so the user knows what the email is for.
4924       *     @type string          $confirm_url The link to click on to confirm the account action.
4925       *     @type string          $sitename    The site name sending the mail.
4926       *     @type string          $siteurl     The site URL sending the mail.
4927       * }
4928       */
4929      $content = apply_filters( 'user_request_action_email_content', $content, $email_data );
4930  
4931      $content = str_replace( '###DESCRIPTION###', $email_data['description'], $content );
4932      $content = str_replace( '###CONFIRM_URL###', sanitize_url( $email_data['confirm_url'] ), $content );
4933      $content = str_replace( '###EMAIL###', $email_data['email'], $content );
4934      $content = str_replace( '###SITENAME###', $email_data['sitename'], $content );
4935      $content = str_replace( '###SITEURL###', sanitize_url( $email_data['siteurl'] ), $content );
4936  
4937      $headers = '';
4938  
4939      /**
4940       * Filters the headers of the email sent when an account action is attempted.
4941       *
4942       * @since 5.4.0
4943       *
4944       * @param string|array $headers    The email headers.
4945       * @param string       $subject    The email subject.
4946       * @param string       $content    The email content.
4947       * @param int          $request_id The request ID.
4948       * @param array        $email_data {
4949       *     Data relating to the account action email.
4950       *
4951       *     @type WP_User_Request $request     User request object.
4952       *     @type string          $email       The email address this is being sent to.
4953       *     @type string          $description Description of the action being performed so the user knows what the email is for.
4954       *     @type string          $confirm_url The link to click on to confirm the account action.
4955       *     @type string          $sitename    The site name sending the mail.
4956       *     @type string          $siteurl     The site URL sending the mail.
4957       * }
4958       */
4959      $headers = apply_filters( 'user_request_action_email_headers', $headers, $subject, $content, $request_id, $email_data );
4960  
4961      $email_sent = wp_mail( $email_data['email'], $subject, $content, $headers );
4962  
4963      if ( $switched_locale ) {
4964          restore_previous_locale();
4965      }
4966  
4967      if ( ! $email_sent ) {
4968          return new WP_Error( 'privacy_email_error', __( 'Unable to send personal data export confirmation email.' ) );
4969      }
4970  
4971      return true;
4972  }
4973  
4974  /**
4975   * Returns a confirmation key for a user action and stores the hashed version for future comparison.
4976   *
4977   * @since 4.9.6
4978   *
4979   * @param int $request_id Request ID.
4980   * @return string Confirmation key.
4981   */
4982  function wp_generate_user_request_key( $request_id ) {
4983      // Generate something random for a confirmation key.
4984      $key = wp_generate_password( 20, false );
4985  
4986      // Save the key, hashed.
4987      wp_update_post(
4988          array(
4989              'ID'            => $request_id,
4990              'post_status'   => 'request-pending',
4991              'post_password' => wp_fast_hash( $key ),
4992          )
4993      );
4994  
4995      return $key;
4996  }
4997  
4998  /**
4999   * Validates a user request by comparing the key with the request's key.
5000   *
5001   * @since 4.9.6
5002   *
5003   * @param int    $request_id ID of the request being confirmed.
5004   * @param string $key        Provided key to validate.
5005   * @return true|WP_Error True on success, WP_Error on failure.
5006   */
5007  function wp_validate_user_request_key(
5008      $request_id,
5009      #[\SensitiveParameter]
5010      $key
5011  ) {
5012      $request_id       = absint( $request_id );
5013      $request          = wp_get_user_request( $request_id );
5014      $saved_key        = $request->confirm_key;
5015      $key_request_time = $request->modified_timestamp;
5016  
5017      if ( ! $request || ! $saved_key || ! $key_request_time ) {
5018          return new WP_Error( 'invalid_request', __( 'Invalid personal data request.' ) );
5019      }
5020  
5021      if ( ! in_array( $request->status, array( 'request-pending', 'request-failed' ), true ) ) {
5022          return new WP_Error( 'expired_request', __( 'This personal data request has expired.' ) );
5023      }
5024  
5025      if ( empty( $key ) ) {
5026          return new WP_Error( 'missing_key', __( 'The confirmation key is missing from this personal data request.' ) );
5027      }
5028  
5029      /**
5030       * Filters the expiration time of confirm keys.
5031       *
5032       * @since 4.9.6
5033       *
5034       * @param int $expiration The expiration time in seconds.
5035       */
5036      $expiration_duration = (int) apply_filters( 'user_request_key_expiration', DAY_IN_SECONDS );
5037      $expiration_time     = $key_request_time + $expiration_duration;
5038  
5039      if ( ! wp_verify_fast_hash( $key, $saved_key ) ) {
5040          return new WP_Error( 'invalid_key', __( 'The confirmation key is invalid for this personal data request.' ) );
5041      }
5042  
5043      if ( ! $expiration_time || time() > $expiration_time ) {
5044          return new WP_Error( 'expired_key', __( 'The confirmation key has expired for this personal data request.' ) );
5045      }
5046  
5047      return true;
5048  }
5049  
5050  /**
5051   * Returns the user request object for the specified request ID.
5052   *
5053   * @since 4.9.6
5054   *
5055   * @param int $request_id The ID of the user request.
5056   * @return WP_User_Request|false
5057   */
5058  function wp_get_user_request( $request_id ) {
5059      $request_id = absint( $request_id );
5060      $post       = get_post( $request_id );
5061  
5062      if ( ! $post || 'user_request' !== $post->post_type ) {
5063          return false;
5064      }
5065  
5066      return new WP_User_Request( $post );
5067  }
5068  
5069  /**
5070   * Checks if Application Passwords is supported.
5071   *
5072   * Application Passwords is supported only by sites using SSL or local environments
5073   * but may be made available using the {@see 'wp_is_application_passwords_available'} filter.
5074   *
5075   * @since 5.9.0
5076   *
5077   * @return bool
5078   */
5079  function wp_is_application_passwords_supported() {
5080      return is_ssl() || 'local' === wp_get_environment_type();
5081  }
5082  
5083  /**
5084   * Checks if Application Passwords is globally available.
5085   *
5086   * By default, Application Passwords is available to all sites using SSL or to local environments.
5087   * Use the {@see 'wp_is_application_passwords_available'} filter to adjust its availability.
5088   *
5089   * @since 5.6.0
5090   *
5091   * @return bool
5092   */
5093  function wp_is_application_passwords_available() {
5094      /**
5095       * Filters whether Application Passwords is available.
5096       *
5097       * @since 5.6.0
5098       *
5099       * @param bool $available True if available, false otherwise.
5100       */
5101      return apply_filters( 'wp_is_application_passwords_available', wp_is_application_passwords_supported() );
5102  }
5103  
5104  /**
5105   * Checks if Application Passwords is available for a specific user.
5106   *
5107   * By default all users can use Application Passwords. Use {@see 'wp_is_application_passwords_available_for_user'}
5108   * to restrict availability to certain users.
5109   *
5110   * @since 5.6.0
5111   *
5112   * @param int|WP_User $user The user to check.
5113   * @return bool
5114   */
5115  function wp_is_application_passwords_available_for_user( $user ) {
5116      if ( ! wp_is_application_passwords_available() ) {
5117          return false;
5118      }
5119  
5120      if ( ! is_object( $user ) ) {
5121          $user = get_userdata( $user );
5122      }
5123  
5124      if ( ! $user || ! $user->exists() ) {
5125          return false;
5126      }
5127  
5128      /**
5129       * Filters whether Application Passwords is available for a specific user.
5130       *
5131       * @since 5.6.0
5132       *
5133       * @param bool    $available True if available, false otherwise.
5134       * @param WP_User $user      The user to check.
5135       */
5136      return apply_filters( 'wp_is_application_passwords_available_for_user', true, $user );
5137  }
5138  
5139  /**
5140   * Registers the user meta property for persisted preferences.
5141   *
5142   * This property is used to store user preferences across page reloads and is
5143   * currently used by the block editor for preferences like 'fullscreenMode' and
5144   * 'fixedToolbar'.
5145   *
5146   * @since 6.1.0
5147   * @access private
5148   *
5149   * @global wpdb $wpdb WordPress database abstraction object.
5150   */
5151  function wp_register_persisted_preferences_meta() {
5152      /*
5153       * Create a meta key that incorporates the blog prefix so that each site
5154       * on a multisite can have distinct user preferences.
5155       */
5156      global $wpdb;
5157      $meta_key = $wpdb->get_blog_prefix() . 'persisted_preferences';
5158  
5159      register_meta(
5160          'user',
5161          $meta_key,
5162          array(
5163              'type'         => 'object',
5164              'single'       => true,
5165              'show_in_rest' => array(
5166                  'name'   => 'persisted_preferences',
5167                  'type'   => 'object',
5168                  'schema' => array(
5169                      'type'                 => 'object',
5170                      'context'              => array( 'edit' ),
5171                      'properties'           => array(
5172                          '_modified' => array(
5173                              'description' => __( 'The date and time the preferences were updated.' ),
5174                              'type'        => 'string',
5175                              'format'      => 'date-time',
5176                              'readonly'    => false,
5177                          ),
5178                      ),
5179                      'additionalProperties' => true,
5180                  ),
5181              ),
5182          )
5183      );
5184  }
5185  
5186  /**
5187   * Sets the last changed time for the 'users' cache group.
5188   *
5189   * @since 6.3.0
5190   */
5191  function wp_cache_set_users_last_changed() {
5192      wp_cache_set_last_changed( 'users' );
5193  }
5194  
5195  /**
5196   * Checks if password reset is allowed for a specific user.
5197   *
5198   * @since 6.3.0
5199   *
5200   * @param int|WP_User $user The user to check.
5201   * @return bool|WP_Error True if allowed, false or WP_Error otherwise.
5202   */
5203  function wp_is_password_reset_allowed_for_user( $user ) {
5204      if ( ! is_object( $user ) ) {
5205          $user = get_userdata( $user );
5206      }
5207  
5208      if ( ! $user || ! $user->exists() ) {
5209          return false;
5210      }
5211      $allow = true;
5212      if ( is_multisite() && is_user_spammy( $user ) ) {
5213          $allow = false;
5214      }
5215  
5216      /**
5217       * Filters whether to allow a password to be reset.
5218       *
5219       * @since 2.7.0
5220       *
5221       * @param bool $allow   Whether to allow the password to be reset. Default true.
5222       * @param int  $user_id The ID of the user attempting to reset a password.
5223       */
5224      return apply_filters( 'allow_password_reset', $allow, $user->ID );
5225  }


Generated : Fri Oct 24 08:20:05 2025 Cross-referenced by PHPXref