| 1 | <?php |
| 2 | /* |
| 3 | +--------------------------------------------------------------------+ |
| 4 | | Copyright CiviCRM LLC. All rights reserved. | |
| 5 | | | |
| 6 | | This work is published under the GNU AGPLv3 license with some | |
| 7 | | permitted exceptions and without any warranty. For full license | |
| 8 | | and copyright information, see https://civicrm.org/licensing | |
| 9 | +--------------------------------------------------------------------+ |
| 10 | */ |
| 11 | |
| 12 | namespace Civi\API\Subscriber; |
| 13 | |
| 14 | use Civi\API\Events; |
| 15 | use Symfony\Component\EventDispatcher\EventSubscriberInterface; |
| 16 | |
| 17 | /** |
| 18 | * This class determines what fields are allowed for a request |
| 19 | * and validates that the fields are provided correctly. |
| 20 | */ |
| 21 | class APIv3SchemaAdapter implements EventSubscriberInterface { |
| 22 | |
| 23 | /** |
| 24 | * @return array |
| 25 | */ |
| 26 | public static function getSubscribedEvents() { |
| 27 | return [ |
| 28 | Events::PREPARE => [ |
| 29 | ['onApiPrepare', Events::W_MIDDLE], |
| 30 | ['onApiPrepare_validate', Events::W_LATE], |
| 31 | ], |
| 32 | ]; |
| 33 | } |
| 34 | |
| 35 | /** |
| 36 | * @param \Civi\API\Event\PrepareEvent $event |
| 37 | * API preparation event. |
| 38 | * |
| 39 | * @throws \API_Exception |
| 40 | */ |
| 41 | public function onApiPrepare(\Civi\API\Event\PrepareEvent $event) { |
| 42 | $apiRequest = $event->getApiRequest(); |
| 43 | if ($apiRequest['version'] > 3) { |
| 44 | return; |
| 45 | } |
| 46 | |
| 47 | $apiRequest['fields'] = _civicrm_api3_api_getfields($apiRequest); |
| 48 | |
| 49 | _civicrm_api3_swap_out_aliases($apiRequest, $apiRequest['fields']); |
| 50 | if (strtolower($apiRequest['action']) != 'getfields') { |
| 51 | if (empty($apiRequest['params']['id'])) { |
| 52 | $apiRequest['params'] = array_merge($this->getDefaults($apiRequest['fields']), $apiRequest['params']); |
| 53 | } |
| 54 | // Note: If 'id' is set then verify_mandatory will only check 'version'. |
| 55 | civicrm_api3_verify_mandatory($apiRequest['params'], NULL, $this->getRequired($apiRequest['fields'])); |
| 56 | } |
| 57 | |
| 58 | $event->setApiRequest($apiRequest); |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * @param \Civi\API\Event\Event $event |
| 63 | * API preparation event. |
| 64 | * |
| 65 | * @throws \Exception |
| 66 | */ |
| 67 | public function onApiPrepare_validate(\Civi\API\Event\Event $event) { |
| 68 | $apiRequest = $event->getApiRequest(); |
| 69 | if ($apiRequest['version'] > 3) { |
| 70 | return; |
| 71 | } |
| 72 | // Not sure why this is omitted for generic actions. It would make sense |
| 73 | // to omit 'getfields', but that's only one generic action. |
| 74 | |
| 75 | if (isset($apiRequest['function']) && !$apiRequest['is_generic'] && isset($apiRequest['fields'])) { |
| 76 | _civicrm_api3_validate_fields($apiRequest['entity'], $apiRequest['action'], $apiRequest['params'], $apiRequest['fields']); |
| 77 | $event->setApiRequest($apiRequest); |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | /** |
| 82 | * Return array of defaults for the given API (function is a wrapper on getfields). |
| 83 | * @param $fields |
| 84 | * @return array |
| 85 | */ |
| 86 | public function getDefaults($fields) { |
| 87 | $defaults = []; |
| 88 | |
| 89 | foreach ($fields as $field => $values) { |
| 90 | if (isset($values['api.default'])) { |
| 91 | $defaults[$field] = $values['api.default']; |
| 92 | } |
| 93 | } |
| 94 | return $defaults; |
| 95 | } |
| 96 | |
| 97 | /** |
| 98 | * Return array of required fields for the given API (function is a wrapper on getfields). |
| 99 | * @param $fields |
| 100 | * @return array |
| 101 | */ |
| 102 | public function getRequired($fields) { |
| 103 | $required = ['version']; |
| 104 | |
| 105 | foreach ($fields as $field => $values) { |
| 106 | if (!empty($values['api.required'])) { |
| 107 | $required[] = $field; |
| 108 | } |
| 109 | } |
| 110 | return $required; |
| 111 | } |
| 112 | |
| 113 | } |