WordPress plugin: BBPMods Anonymous

bbpmods_anonymous.php

<?php 
/**
 * Plugin Name:  BBPMods Anonymous
 * Description:  bbPress anonymous modifications.
 * Version:      0.0.2
 * Requires PHP: 5.4
 */

/**
 * Changelog.
 *
 * 0.0.2 Fixed formatting. 
 *       Added changelog.
 * 0.0.1 Init.
 */

namespace BBPMods\Anonymous;

/**
 * Init.
 */
add_action( 'init', function(){

	add_filter( 'bbp_current_user_can_access_anonymous_user_form', '__return_false' );

	$anonymous_users = array( 
		array ( 'John',    'john@example.com' ),
		array ( 'Mike',    'mike@example.com' ),
		array ( 'Will',    'will@example.com' ),
		array ( 'Pete',    'pete@example.com' ),
		array ( 'Lucy',    'lucy@example.com' ),
		array ( 'Barbara', 'barbara@example.com' ),
	);
	
	/**
	 * Filter anonymous users.
	 *
	 * @param	array	$anonymous_users  Array of arrays with name and email.
	 */
	$anonymous_users = apply_filters( 'bbpmods_anonymous_users', $anonymous_users );

	$obj = new Empty_Anonymous_Replies();
	$obj ->set_anonymous_users( $anonymous_users )
	     ->init();
} );


/**
 * Class Empty_Anonymous_Replies.
 *
 * @since 0.0.1
 */
class Empty_Anonymous_Replies {

	/**
	 * @var int
	 *
	 * @since 0.0.1
	 */
	protected $user_index      = 0;

	/**
	 * @var int
	 *
	 * @since 0.0.1
	 */
	protected $name_index      = 0;

	/**
	 * @var int
	 *
	 * @since 0.0.1
	 */
	protected $email_index     = 1;

	/**
	 * @var array
	 *
	 * @since 0.0.1
	 */
	protected $anonymous_users = array();

	/**
	 * Set anonymous users.
	 *
	 * @since 0.0.1
	 *
	 * @param	array	$anonymous_users  Array of arrays with name and email.
	 */
	public function set_anonymous_users( $anonymous_users ) {

		$this->anonymous_users = $anonymous_users;

		return $this;
	}

	/**
	 * Init.
	 *
	 * @since 0.0.1
	 */
	public function init() {

		// Filters in order of activation.
		add_filter( 'bbp_before_filter_anonymous_post_data_parse_args', 
					 array( $this, 'bbp_before_filter_anonymous_post_data_parse_args' ),                    
					 10 );

		add_filter( 'bbp_pre_anonymous_post_author_name', 
					 array( $this,  'bbp_pre_anonymous_post_author_name' ) );

		add_filter( 'bbp_pre_anonymous_post_author_email',  
					 array( $this, 'bbp_pre_anonymous_post_author_email' ) );

		add_filter( 'bbp_filter_anonymous_post_data', 
					 array( $this, 'bbp_filter_anonymous_post_data' ),                    
					 11, 2 );
	}

	/**
	 * Filter's callback
	 *
	 * @since 0.0.1
	 *
	 * @param	array	$r Anonymous post data.
	 */
	public function bbp_before_filter_anonymous_post_data_parse_args( $r ) {

		if ( ! empty( $this->anonymous_users ) ) {
			$this->user_index = array_rand( $this->anonymous_users );
		}

		return $r;
	}

	/**
	 * Filter's callback
	 *
	 * @since 0.0.1
	 *
	 * @param	string	$name Anonymous user's name.
	 */
	public function bbp_pre_anonymous_post_author_name( $name ) {

		remove_filter( current_filter(), array( $this, __FUNCTION__ ) );

		if( empty( $name ) && ! empty( $this->anonymous_users ) ) {
			$name = $this->anonymous_users[$this->user_index][$this->name_index];
		}

		return $name;
	}

	/**
	 * Filter's callback
	 *
	 * @since 0.0.1
	 *
	 * @param	string	$email Anonymous user's email.
	 */
	public function bbp_pre_anonymous_post_author_email( $email ) {

		remove_filter( current_filter(), array( $this, __FUNCTION__ ) );

		if( empty( $email ) && ! empty( $this->anonymous_users ) ) {
			$email = $this->anonymous_users[$this->user_index][$this->email_index];
		}

		return $email;
	}

	/**
	 * Filter's callback
	 *
	 * @since 0.0.1
	 *
	 * @param	array	$retval Anonymous post data.
	 * @param	array	$r      Arguments.
	 */
	public function bbp_filter_anonymous_post_data( $retval, $r ) {

		if ( empty( $this->anonymous_users ) ) {
			return $retval;
		}

		if( $this->anonymous_users[$this->user_index][$this->name_index] === $r['bbp_anonymous_name'] 
			&& $this->anonymous_users[$this->user_index][$this->email_index] === $r['bbp_anonymous_email']
		) {
			// Reset the input to skip writing cookies.
			$retval = array();

			// Activate the IP flood check.
			$retval['bbp_anonymous_flood_check'] = '1';
		}       

		return $retval;
	}
}