| 1 | <?php |
| 2 | /* |
| 3 | +--------------------------------------------------------------------+ |
| 4 | | CiviCRM version 4.7 | |
| 5 | +--------------------------------------------------------------------+ |
| 6 | | Copyright CiviCRM LLC (c) 2004-2015 | |
| 7 | +--------------------------------------------------------------------+ |
| 8 | | This file is a part of CiviCRM. | |
| 9 | | | |
| 10 | | CiviCRM is free software; you can copy, modify, and distribute it | |
| 11 | | under the terms of the GNU Affero General Public License | |
| 12 | | Version 3, 19 November 2007 and the CiviCRM Licensing Exception. | |
| 13 | | | |
| 14 | | CiviCRM is distributed in the hope that it will be useful, but | |
| 15 | | WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
| 17 | | See the GNU Affero General Public License for more details. | |
| 18 | | | |
| 19 | | You should have received a copy of the GNU Affero General Public | |
| 20 | | License and the CiviCRM Licensing Exception along | |
| 21 | | with this program; if not, contact CiviCRM LLC | |
| 22 | | at info[AT]civicrm[DOT]org. If you have questions about the | |
| 23 | | GNU Affero General Public License or the licensing of CiviCRM, | |
| 24 | | see the CiviCRM license FAQ at http://civicrm.org/licensing | |
| 25 | +--------------------------------------------------------------------+ |
| 26 | */ |
| 27 | |
| 28 | namespace Civi\API\Subscriber; |
| 29 | |
| 30 | use Civi\API\Events; |
| 31 | use Symfony\Component\EventDispatcher\EventSubscriberInterface; |
| 32 | |
| 33 | /** |
| 34 | * The ChainSubscriber looks for API parameters which specify a nested or |
| 35 | * chained API call. For example: |
| 36 | * |
| 37 | * @code |
| 38 | * $result = civicrm_api('Contact', 'create', array( |
| 39 | * 'version' => 3, |
| 40 | * 'first_name' => 'Amy', |
| 41 | * 'api.Email.create' => array( |
| 42 | * 'email' => 'amy@example.com', |
| 43 | * 'location_type_id' => 123, |
| 44 | * ), |
| 45 | * )); |
| 46 | * @endcode |
| 47 | * |
| 48 | * The ChainSubscriber looks for any parameters of the form "api.Email.create"; |
| 49 | * if found, it issues the nested API call (and passes some extra context -- |
| 50 | * eg Amy's contact_id). |
| 51 | */ |
| 52 | class ChainSubscriber implements EventSubscriberInterface { |
| 53 | /** |
| 54 | * @return array |
| 55 | */ |
| 56 | public static function getSubscribedEvents() { |
| 57 | return array( |
| 58 | Events::RESPOND => array('onApiRespond', Events::W_EARLY), |
| 59 | ); |
| 60 | } |
| 61 | |
| 62 | /** |
| 63 | * @param \Civi\API\Event\RespondEvent $event |
| 64 | * API response event. |
| 65 | * |
| 66 | * @throws \Exception |
| 67 | */ |
| 68 | public function onApiRespond(\Civi\API\Event\RespondEvent $event) { |
| 69 | $apiRequest = $event->getApiRequest(); |
| 70 | $result = $event->getResponse(); |
| 71 | if (\CRM_Utils_Array::value('is_error', $result, 0) == 0) { |
| 72 | $this->callNestedApi($event->getApiKernel(), $apiRequest['params'], $result, $apiRequest['action'], $apiRequest['entity'], $apiRequest['version']); |
| 73 | $event->setResponse($result); |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | /** |
| 78 | * Call any nested api calls. |
| 79 | * |
| 80 | * TODO: We don't really need this to be a separate function. |
| 81 | * @param \Civi\API\Kernel $apiKernel |
| 82 | * @param $params |
| 83 | * @param $result |
| 84 | * @param $action |
| 85 | * @param $entity |
| 86 | * @param $version |
| 87 | * @throws \Exception |
| 88 | */ |
| 89 | protected function callNestedApi($apiKernel, &$params, &$result, $action, $entity, $version) { |
| 90 | $lowercase_entity = _civicrm_api_get_entity_name_from_camel($entity); |
| 91 | |
| 92 | // We don't need to worry about nested api in the getfields/getoptions |
| 93 | // actions, so just return immediately. |
| 94 | if (in_array($action, array('getfields', 'getfield', 'getoptions'))) { |
| 95 | return; |
| 96 | } |
| 97 | |
| 98 | if ($action == 'getsingle') { |
| 99 | // I don't understand the protocol here, but we don't want |
| 100 | // $result to be a recursive array |
| 101 | // $result['values'][0] = $result; |
| 102 | $oldResult = $result; |
| 103 | $result = array('values' => array(0 => $oldResult)); |
| 104 | } |
| 105 | foreach ($params as $field => $newparams) { |
| 106 | if ((is_array($newparams) || $newparams === 1) && $field <> 'api.has_parent' && substr($field, 0, 3) == 'api') { |
| 107 | |
| 108 | // 'api.participant.delete' => 1 is a valid options - handle 1 |
| 109 | // instead of an array |
| 110 | if ($newparams === 1) { |
| 111 | $newparams = array('version' => $version); |
| 112 | } |
| 113 | // can be api_ or api. |
| 114 | $separator = $field[3]; |
| 115 | if (!($separator == '.' || $separator == '_')) { |
| 116 | continue; |
| 117 | } |
| 118 | $subAPI = explode($separator, $field); |
| 119 | |
| 120 | $subaction = empty($subAPI[2]) ? $action : $subAPI[2]; |
| 121 | $subParams = array( |
| 122 | 'debug' => \CRM_Utils_Array::value('debug', $params), |
| 123 | ); |
| 124 | $subEntity = _civicrm_api_get_entity_name_from_camel($subAPI[1]); |
| 125 | |
| 126 | foreach ($result['values'] as $idIndex => $parentAPIValues) { |
| 127 | |
| 128 | if ($subEntity != 'contact') { |
| 129 | //contact spits the dummy at activity_id so what else won't it like? |
| 130 | //set entity_id & entity table based on the parent's id & entity. |
| 131 | //e.g for something like note if the parent call is contact |
| 132 | //'entity_table' will be set to 'contact' & 'id' to the contact id |
| 133 | //from the parent call. in this case 'contact_id' will also be |
| 134 | //set to the parent's id |
| 135 | $subParams["entity_id"] = $parentAPIValues['id']; |
| 136 | $subParams['entity_table'] = 'civicrm_' . $lowercase_entity; |
| 137 | |
| 138 | $crm16084 = FALSE; |
| 139 | if ($subEntity == 'relationship' && $lowercase_entity == 'contact') { |
| 140 | // if a relationship call is chained to a contact call, we need |
| 141 | // to check whether contact_id_a or contact_id_b for the |
| 142 | // relationship is given. If so, don't add an extra subParam |
| 143 | // "contact_id" => parent_id. |
| 144 | // See CRM-16084. |
| 145 | foreach (array_keys($newparams) as $key) { |
| 146 | if (substr($key, 0, 11) == 'contact_id_') { |
| 147 | $crm16084 = TRUE; |
| 148 | break; |
| 149 | } |
| 150 | } |
| 151 | } |
| 152 | if (!$crm16084) { |
| 153 | $subParams[$lowercase_entity . "_id"] = $parentAPIValues['id']; |
| 154 | } |
| 155 | } |
| 156 | if ($entity != 'Contact' && \CRM_Utils_Array::value(strtolower($subEntity . "_id"), $parentAPIValues)) { |
| 157 | //e.g. if event_id is in the values returned & subentity is event |
| 158 | //then pass in event_id as 'id' don't do this for contact as it |
| 159 | //does some weird things like returning primary email & |
| 160 | //thus limiting the ability to chain email |
| 161 | //TODO - this might need the camel treatment |
| 162 | $subParams['id'] = $parentAPIValues[$subEntity . "_id"]; |
| 163 | } |
| 164 | |
| 165 | if (\CRM_Utils_Array::value('entity_table', $result['values'][$idIndex]) == $subEntity) { |
| 166 | $subParams['id'] = $result['values'][$idIndex]['entity_id']; |
| 167 | } |
| 168 | // if we are dealing with the same entity pass 'id' through |
| 169 | // (useful for get + delete for example) |
| 170 | if ($lowercase_entity == $subEntity) { |
| 171 | $subParams['id'] = $result['values'][$idIndex]['id']; |
| 172 | } |
| 173 | |
| 174 | $subParams['version'] = $version; |
| 175 | if (!empty($params['check_permissions'])) { |
| 176 | $subParams['check_permissions'] = $params['check_permissions']; |
| 177 | } |
| 178 | $subParams['sequential'] = 1; |
| 179 | $subParams['api.has_parent'] = 1; |
| 180 | if (array_key_exists(0, $newparams)) { |
| 181 | $genericParams = $subParams; |
| 182 | // it is a numerically indexed array - ie. multiple creates |
| 183 | foreach ($newparams as $entityparams) { |
| 184 | $subParams = array_merge($genericParams, $entityparams); |
| 185 | _civicrm_api_replace_variables($subParams, $result['values'][$idIndex], $separator); |
| 186 | $result['values'][$idIndex][$field][] = $apiKernel->run($subEntity, $subaction, $subParams); |
| 187 | if ($result['is_error'] === 1) { |
| 188 | throw new \Exception($subEntity . ' ' . $subaction . 'call failed with' . $result['error_message']); |
| 189 | } |
| 190 | } |
| 191 | } |
| 192 | else { |
| 193 | |
| 194 | $subParams = array_merge($subParams, $newparams); |
| 195 | _civicrm_api_replace_variables($subParams, $result['values'][$idIndex], $separator); |
| 196 | $result['values'][$idIndex][$field] = $apiKernel->run($subEntity, $subaction, $subParams); |
| 197 | if (!empty($result['is_error'])) { |
| 198 | throw new \Exception($subEntity . ' ' . $subaction . 'call failed with' . $result['error_message']); |
| 199 | } |
| 200 | } |
| 201 | } |
| 202 | } |
| 203 | } |
| 204 | if ($action == 'getsingle') { |
| 205 | $result = $result['values'][0]; |
| 206 | } |
| 207 | } |
| 208 | |
| 209 | } |