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<?php |
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namespace Automattic\Jetpack\Sync; |
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/** |
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* Class Users |
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* |
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* Responsible for syncing user data changes. |
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*/ |
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class Users { |
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static $user_roles = array(); |
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static function init() { |
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if ( \Jetpack::is_active() ) { |
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// Kick off synchronization of user role when it changes |
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add_action( 'set_user_role', array( __CLASS__, 'user_role_change' ) ); |
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} |
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} |
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/** |
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* Synchronize connected user role changes |
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*/ |
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static function user_role_change( $user_id ) { |
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if ( \Jetpack::is_user_connected( $user_id ) ) { |
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self::update_role_on_com( $user_id ); |
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// try to choose a new master if we're demoting the current one |
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self::maybe_demote_master_user( $user_id ); |
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} |
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} |
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static function get_role( $user_id ) { |
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if ( isset( self::$user_roles[ $user_id ] ) ) { |
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return self::$user_roles[ $user_id ]; |
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} |
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$current_user_id = get_current_user_id(); |
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wp_set_current_user( $user_id ); |
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$role = \Jetpack::translate_current_user_to_role(); |
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wp_set_current_user( $current_user_id ); |
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$user_roles[ $user_id ] = $role; |
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return $role; |
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} |
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static function get_signed_role( $user_id ) { |
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return \Jetpack::sign_role( self::get_role( $user_id ), $user_id ); |
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} |
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static function update_role_on_com( $user_id ) { |
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$signed_role = self::get_signed_role( $user_id ); |
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\Jetpack::xmlrpc_async_call( 'jetpack.updateRole', $user_id, $signed_role ); |
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} |
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static function maybe_demote_master_user( $user_id ) { |
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$master_user_id = \Jetpack_Options::get_option( 'master_user' ); |
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$role = self::get_role( $user_id ); |
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if ( $user_id == $master_user_id && 'administrator' != $role ) { |
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$query = new \WP_User_Query( |
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array( |
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'fields' => array( 'id' ), |
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'role' => 'administrator', |
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'orderby' => 'id', |
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'exclude' => array( $master_user_id ), |
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) |
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); |
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$new_master = false; |
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foreach ( $query->results as $result ) { |
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$found_user_id = absint( $result->id ); |
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if ( $found_user_id && \Jetpack::is_user_connected( $found_user_id ) ) { |
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$new_master = $found_user_id; |
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break; |
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} |
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} |
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if ( $new_master ) { |
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\Jetpack_Options::update_option( 'master_user', $new_master ); |
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} |
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// else disconnect..? |
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} |
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} |
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} |
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Automattic /
jetpack
Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.
Let’s take a look at an example:
As you can see in this example, the array
$myArrayis initialized the first time when the foreach loop is entered. You can also see that the value of thebarkey is only written conditionally; thus, its value might result from a previous iteration.This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.