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<?php
namespace Yoast\WP\SEO\Values\Robots;
/**
* Class User_Agent_List
*/
class User_Agent_List {
/**
* The list of user agents.
*
* @var array
*/
private $user_agent_list;
/**
* User Agent list constructor.
*/
public function __construct() {
$this->user_agent_list = [];
}
/**
* Checks if given user_agent is already registered.
*
* @param string $user_agent The user agent identifier.
*
* @return bool
*/
public function has_user_agent( $user_agent ) {
return \array_key_exists( $user_agent, $this->user_agent_list );
}
/**
* Gets the user agent object. If it is not yet registered it creates it.
*
* @param string $user_agent The user agent identifier.
*
* @return User_Agent
*/
public function get_user_agent( $user_agent ) {
if ( $this->has_user_agent( $user_agent ) ) {
return $this->user_agent_list[ $user_agent ];
}
$this->user_agent_list[ $user_agent ] = new User_Agent( $user_agent );
return $this->user_agent_list[ $user_agent ];
}
/**
* Gets the list of user agents.
*
* @return array
*/
public function get_user_agents() {
return $this->user_agent_list;
}
/**
* Gets a list of all disallow directives by user agent.
*
* @return array
*/
public function get_disallow_directives() {
$directives = [];
foreach ( $this->user_agent_list as $user_agent ) {
$directives[ $user_agent->get_user_agent() ] = $user_agent->get_disallow_paths();
}
return $directives;
}
/**
* Gets a list of all sallow directives by user agent.
*
* @return array
*/
public function get_allow_directives() {
$directives = [];
foreach ( $this->user_agent_list as $user_agent ) {
$directives[ $user_agent->get_user_agent() ] = $user_agent->get_allow_paths();
}
return $directives;
}
}