Add hook_user_(login|insert|update|delete) functions.

User registration profile fields are now pushed through to CiviCRM.

civicrm.module

@@ -2,6 +2,8 @@
 
 define('CIVICRM_UF_HEAD', TRUE);
 
+require_once 'civicrm.user.inc';
+
 /**
  * Implements hook_permission().
  */

civicrm.user.inc

@@ -0,0 +1,54 @@
+<?php
+
+use \Drupal\Core\Session\AccountInterface;
+
+/**
+ * Implements hook_user_login().
+ */
+function civicrm_user_login(AccountInterface $account) {
+  \Drupal::service('civicrm')->synchronizeUser($account);
+}
+
+/**
+ * Implements hook_user_insert().
+ */
+function civicrm_user_insert(AccountInterface $account) {
+  $civicrm = \Drupal::service('civicrm');
+  $civicrm->synchronizeUser($account);
+
+  // As per CRM-7858, the email address in CiviCRM isn't always set
+  // with a call to synchronize(). So we force this through.
+  $contact_id = \CRM_Core_BAO_UFMatch::getContactId($account->id());
+  \CRM_Core_BAO_UFMatch::updateContactEmail($contact_id, $account->getEmail());
+
+  // Process any profile form fields that may have been submitted.
+  // In particular, this will pick up form fields that were submitted on the user_registration page.
+  \CRM_Core_BAO_UFGroup::getEditHTML($contact_id, '', 2, TRUE, FALSE, NULL, FALSE, $civicrm->getCtype());
+}
+
+/**
+ * Implements hook_user_update().
+ */
+function civicrm_user_update(AccountInterface $account) {
+  \Drupal::service('civicrm');
+
+  // Update primary email address of contact if it has changed.
+  $contact_id = \CRM_Core_BAO_UFMatch::getContactId($account->id());
+  if ($contact_id) {
+    $contact_email = \CRM_Contact_BAO_Contact::getPrimaryEmail($contact_id);
+    if ($contact_email != $account->getEmail()) {
+      \CRM_Core_BAO_UFMatch::updateContactEmail($contact_id, $account->getEmail());
+    }
+  }
+
+  // @Todo Drupal 7 code cleared navigation menu if it detected a change in roles.
+  // \CRM_Core_BAO_Navigation::resetNavigation($contact_id);
+}
+
+/**
+ * Implements hook_user_delete().
+ */
+function civicrm_user_delete(AccountInterface $account) {
+  \Drupal::service('civicrm');
+  \CRM_Core_BAO_UFMatch::deleteUser($account->id());
+}

src/Civicrm.php

@@ -160,7 +160,7 @@ public function synchronizeUser(AccountInterface $account, $contact_type = 'Indi
    *
    * @Todo: Document what this function is doing and why.
    */
-  protected function getCtype($default = 'Individual') {
+  public function getCtype($default = 'Individual') {
     if (!empty($_REQUEST['ctype'])) {
       $ctype = $_REQUEST['ctype'];
     }