499 lines
17 KiB
PHP
499 lines
17 KiB
PHP
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<?php
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/*
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+--------------------------------------------------------------------+
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| CiviCRM version 4.7 |
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+--------------------------------------------------------------------+
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| Copyright CiviCRM LLC (c) 2004-2017 |
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+--------------------------------------------------------------------+
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| This file is a part of CiviCRM. |
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| CiviCRM is free software; you can copy, modify, and distribute it |
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| under the terms of the GNU Affero General Public License |
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| Version 3, 19 November 2007 and the CiviCRM Licensing Exception. |
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| |
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| CiviCRM is distributed in the hope that it will be useful, but |
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| WITHOUT ANY WARRANTY; without even the implied warranty of |
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| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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| See the GNU Affero General Public License for more details. |
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| |
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| You should have received a copy of the GNU Affero General Public |
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| License and the CiviCRM Licensing Exception along |
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| with this program; if not, contact CiviCRM LLC |
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| at info[AT]civicrm[DOT]org. If you have questions about the |
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| GNU Affero General Public License or the licensing of CiviCRM, |
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| see the CiviCRM license FAQ at http://civicrm.org/licensing |
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+--------------------------------------------------------------------+
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*/
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/**
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* "Attachment" is a pseudo-entity which represents a record in civicrm_file
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* combined with a record in civicrm_entity_file as well as the underlying
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* file content.
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* For core fields use "entity_table", for custom fields use "field_name"
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*
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* @code
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* // Create an attachment for a core field
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* $result = civicrm_api3('Attachment', 'create', array(
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* 'entity_table' => 'civicrm_activity',
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* 'entity_id' => 123,
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* 'name' => 'README.txt',
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* 'mime_type' => 'text/plain',
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* 'content' => 'Please to read the README',
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* ));
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* $attachment = $result['values'][$result['id']];
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* echo sprintf("<a href='%s'>View %s</a>", $attachment['url'], $attachment['name']);
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* @endcode
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*
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* @code
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* // Create an attachment for a custom file field
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* $result = civicrm_api3('Attachment', 'create', array(
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* 'field_name' => 'custom_6',
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* 'entity_id' => 123,
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* 'name' => 'README.txt',
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* 'mime_type' => 'text/plain',
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* 'content' => 'Please to read the README',
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* ));
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* $attachment = $result['values'][$result['id']];
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* echo sprintf("<a href='%s'>View %s</a>", $attachment['url'], $attachment['name']);
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* @endcode
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*
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* @code
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* // Move an existing file and save as an attachment
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* $result = civicrm_api3('Attachment', 'create', array(
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* 'entity_table' => 'civicrm_activity',
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* 'entity_id' => 123,
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* 'name' => 'README.txt',
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* 'mime_type' => 'text/plain',
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* 'options' => array(
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* 'move-file' => '/tmp/upload1a2b3c4d',
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* ),
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* ));
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* $attachment = $result['values'][$result['id']];
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* echo sprintf("<a href='%s'>View %s</a>", $attachment['url'], $attachment['name']);
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* @endcode
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*
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* Notes:
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* - File content is not returned by default. One must specify 'return => content'.
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* - Features which deal with local file system (e.g. passing "options.move-file"
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* or returning a "path") are only valid when executed as a local API (ie
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* "check_permissions"==false)
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*
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* @package CiviCRM_APIv3
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*/
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/**
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* Adjust metadata for "create" action.
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*
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* @param array $spec
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* List of fields.
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*/
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function _civicrm_api3_attachment_create_spec(&$spec) {
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$spec = array_merge($spec, _civicrm_api3_attachment_getfields());
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$spec['name']['api.required'] = 1;
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$spec['mime_type']['api.required'] = 1;
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$spec['entity_id']['api.required'] = 1;
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$spec['upload_date']['api.default'] = 'now';
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}
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/**
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* Create an Attachment.
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*
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* @param array $params
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*
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* @return array
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* @throws API_Exception validation errors
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* @see Civi\API\Subscriber\DynamicFKAuthorization
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*/
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function civicrm_api3_attachment_create($params) {
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if (empty($params['id'])) {
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// When creating we need either entity_table or field_name.
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civicrm_api3_verify_one_mandatory($params, NULL, array('entity_table', 'field_name'));
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}
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$config = CRM_Core_Config::singleton();
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list($id, $file, $entityFile, $name, $content, $moveFile, $isTrusted, $returnContent) = _civicrm_api3_attachment_parse_params($params);
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$fileDao = new CRM_Core_BAO_File();
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$entityFileDao = new CRM_Core_DAO_EntityFile();
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if ($id) {
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$fileDao->id = $id;
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if (!$fileDao->find(TRUE)) {
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throw new API_Exception("Invalid ID");
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}
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$entityFileDao->file_id = $id;
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if (!$entityFileDao->find(TRUE)) {
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throw new API_Exception("Cannot modify orphaned file");
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}
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}
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if (!$id && !is_string($content) && !is_string($moveFile)) {
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throw new API_Exception("Mandatory key(s) missing from params array: 'id' or 'content' or 'options.move-file'");
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}
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if (!$isTrusted && $moveFile) {
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throw new API_Exception("options.move-file is only supported on secure calls");
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}
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if (is_string($content) && is_string($moveFile)) {
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throw new API_Exception("'content' and 'options.move-file' are mutually exclusive");
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}
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if ($id && !$isTrusted && isset($file['upload_date']) && $file['upload_date'] != CRM_Utils_Date::isoToMysql($fileDao->upload_date)) {
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throw new API_Exception("Cannot modify upload_date" . var_export(array($file['upload_date'], $fileDao->upload_date, CRM_Utils_Date::isoToMysql($fileDao->upload_date)), TRUE));
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}
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if ($id && $name && $name != CRM_Utils_File::cleanFileName($fileDao->uri)) {
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throw new API_Exception("Cannot modify name");
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}
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$fileDao->copyValues($file);
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if (!$id) {
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$fileDao->uri = CRM_Utils_File::makeFileName($name);
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}
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$fileDao->save();
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$entityFileDao->copyValues($entityFile);
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$entityFileDao->file_id = $fileDao->id;
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$entityFileDao->save();
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$path = $config->customFileUploadDir . DIRECTORY_SEPARATOR . $fileDao->uri;
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if (is_string($content)) {
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file_put_contents($path, $content);
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}
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elseif (is_string($moveFile)) {
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// CRM-17432 Do not use rename() since it will break file permissions.
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// Also avoid move_uplaoded_file() because the API can use options.move-file.
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copy($moveFile, $path);
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unlink($moveFile);
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}
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// Save custom field to entity
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if (!$id && empty($params['entity_table']) && isset($params['field_name'])) {
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civicrm_api3('custom_value', 'create', array(
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'entity_id' => $params['entity_id'],
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$params['field_name'] => $fileDao->id,
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));
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}
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$result = array(
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$fileDao->id => _civicrm_api3_attachment_format_result($fileDao, $entityFileDao, $returnContent, $isTrusted),
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);
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return civicrm_api3_create_success($result, $params, 'Attachment', 'create');
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}
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/**
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* Adjust metadata for get action.
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*
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* @param array $spec
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* List of fields.
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*/
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function _civicrm_api3_attachment_get_spec(&$spec) {
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$spec = array_merge($spec, _civicrm_api3_attachment_getfields());
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}
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/**
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* Get Attachment.
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*
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* @param array $params
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*
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* @return array
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* per APIv3
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* @throws API_Exception validation errors
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*/
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function civicrm_api3_attachment_get($params) {
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list($id, $file, $entityFile, $name, $content, $moveFile, $isTrusted, $returnContent) = _civicrm_api3_attachment_parse_params($params);
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$dao = __civicrm_api3_attachment_find($params, $id, $file, $entityFile, $isTrusted);
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$result = array();
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while ($dao->fetch()) {
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$result[$dao->id] = _civicrm_api3_attachment_format_result($dao, $dao, $returnContent, $isTrusted);
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}
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return civicrm_api3_create_success($result, $params, 'Attachment', 'create');
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}
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/**
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* Adjust metadata for Attachment delete action.
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*
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* @param $spec
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*/
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function _civicrm_api3_attachment_delete_spec(&$spec) {
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unset($spec['id']['api.required']);
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$entityFileFields = CRM_Core_DAO_EntityFile::fields();
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$spec['entity_table'] = $entityFileFields['entity_table'];
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$spec['entity_table']['title'] = CRM_Utils_Array::value('title', $spec['entity_table'], 'Entity Table') . ' (write-once)';
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$spec['entity_id'] = $entityFileFields['entity_id'];
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$spec['entity_id']['title'] = CRM_Utils_Array::value('title', $spec['entity_id'], 'Entity ID') . ' (write-once)';
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}
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/**
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* Delete Attachment.
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*
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* @param array $params
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*
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* @return array
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* @throws API_Exception
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*/
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function civicrm_api3_attachment_delete($params) {
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if (!empty($params['id'])) {
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// ok
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}
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elseif (!empty($params['entity_table']) && !empty($params['entity_id'])) {
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// ok
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}
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else {
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throw new API_Exception("Mandatory key(s) missing from params array: id or entity_table+entity_table");
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}
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$config = CRM_Core_Config::singleton();
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list($id, $file, $entityFile, $name, $content, $moveFile, $isTrusted, $returnContent) = _civicrm_api3_attachment_parse_params($params);
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$dao = __civicrm_api3_attachment_find($params, $id, $file, $entityFile, $isTrusted);
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$filePaths = array();
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$fileIds = array();
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while ($dao->fetch()) {
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$filePaths[] = $config->customFileUploadDir . DIRECTORY_SEPARATOR . $dao->uri;
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$fileIds[] = $dao->id;
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}
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if (!empty($fileIds)) {
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$idString = implode(',', array_filter($fileIds, 'is_numeric'));
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CRM_Core_DAO::executeQuery("DELETE FROM civicrm_entity_file WHERE file_id in ($idString)");
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CRM_Core_DAO::executeQuery("DELETE FROM civicrm_file WHERE id in ($idString)");
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}
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// unlink is non-transactional, so we do this as the last step -- just in case the other steps produce errors
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if (!empty($filePaths)) {
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foreach ($filePaths as $filePath) {
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unlink($filePath);
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}
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}
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$result = array();
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return civicrm_api3_create_success($result, $params, 'Attachment', 'create');
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}
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/**
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* Attachment find helper.
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*
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* @param array $params
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* @param int|null $id the user-supplied ID of the attachment record
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* @param array $file
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* The user-supplied vales for the file (mime_type, description, upload_date).
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* @param array $entityFile
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* The user-supplied values of the entity-file (entity_table, entity_id).
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* @param bool $isTrusted
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*
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* @return CRM_Core_DAO
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* @throws API_Exception
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*/
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function __civicrm_api3_attachment_find($params, $id, $file, $entityFile, $isTrusted) {
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foreach (array('name', 'content', 'path', 'url') as $unsupportedFilter) {
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if (!empty($params[$unsupportedFilter])) {
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throw new API_Exception("Get by $unsupportedFilter is not currently supported");
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}
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}
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$select = CRM_Utils_SQL_Select::from('civicrm_file cf')
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->join('cef', 'INNER JOIN civicrm_entity_file cef ON cf.id = cef.file_id')
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->select(array(
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'cf.id',
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'cf.uri',
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'cf.mime_type',
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'cf.description',
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'cf.upload_date',
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'cef.entity_table',
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'cef.entity_id',
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));
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if ($id) {
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$select->where('cf.id = #id', array('#id' => $id));
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}
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// Recall: $file is filtered by parse_params.
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foreach ($file as $key => $value) {
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$select->where('cf.!field = @value', array(
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'!field' => $key,
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'@value' => $value,
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));
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}
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// Recall: $entityFile is filtered by parse_params.
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foreach ($entityFile as $key => $value) {
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$select->where('cef.!field = @value', array(
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'!field' => $key,
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'@value' => $value,
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));
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}
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if (!$isTrusted) {
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// FIXME ACLs: Add any JOIN or WHERE clauses needed to enforce access-controls for the target entity.
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//
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// The target entity is identified by "cef.entity_table" (aka $entityFile['entity_table']) and "cef.entity_id".
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//
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// As a simplification, we *require* the "get" actions to filter on a single "entity_table" which should
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// avoid the complexity of matching ACL's against multiple entity types.
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}
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$dao = CRM_Core_DAO::executeQuery($select->toSQL());
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return $dao;
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}
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/**
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* Attachment parsing helper.
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*
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* @param array $params
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*
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* @return array
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* (0 => int $id, 1 => array $file, 2 => array $entityFile, 3 => string $name, 4 => string $content,
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* 5 => string $moveFile, 6 => $isTrusted, 7 => bool $returnContent)
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* - array $file: whitelisted fields that can pass through directly to civicrm_file
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||
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|
* - array $entityFile: whitelisted fields that can pass through directly to civicrm_entity_file
|
||
|
|
* - string $name: the printable name
|
||
|
|
* - string $moveFile: the full path to a local file whose content should be loaded
|
||
|
|
* - bool $isTrusted: whether we trust the requester to do sketchy things (like moving files or reassigning entities)
|
||
|
|
* - bool $returnContent: whether we are expected to return the full content of the file
|
||
|
|
* @throws API_Exception validation errors
|
||
|
|
*/
|
||
|
|
function _civicrm_api3_attachment_parse_params($params) {
|
||
|
|
$id = CRM_Utils_Array::value('id', $params, NULL);
|
||
|
|
if ($id && !is_numeric($id)) {
|
||
|
|
throw new API_Exception("Malformed id");
|
||
|
|
}
|
||
|
|
|
||
|
|
$file = array();
|
||
|
|
foreach (array('mime_type', 'description', 'upload_date') as $field) {
|
||
|
|
if (array_key_exists($field, $params)) {
|
||
|
|
$file[$field] = $params[$field];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$entityFile = array();
|
||
|
|
foreach (array('entity_table', 'entity_id') as $field) {
|
||
|
|
if (array_key_exists($field, $params)) {
|
||
|
|
$entityFile[$field] = $params[$field];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (empty($params['entity_table']) && isset($params['field_name'])) {
|
||
|
|
$tableInfo = CRM_Core_BAO_CustomField::getTableColumnGroup(intval(str_replace('custom_', '', $params['field_name'])));
|
||
|
|
$entityFile['entity_table'] = $tableInfo[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
$name = NULL;
|
||
|
|
if (array_key_exists('name', $params)) {
|
||
|
|
if ($params['name'] != basename($params['name']) || preg_match(':[/\\\\]:', $params['name'])) {
|
||
|
|
throw new API_Exception('Malformed name');
|
||
|
|
}
|
||
|
|
$name = $params['name'];
|
||
|
|
}
|
||
|
|
|
||
|
|
$content = NULL;
|
||
|
|
if (isset($params['content'])) {
|
||
|
|
$content = $params['content'];
|
||
|
|
}
|
||
|
|
|
||
|
|
$moveFile = NULL;
|
||
|
|
if (isset($params['options']['move-file'])) {
|
||
|
|
$moveFile = $params['options']['move-file'];
|
||
|
|
}
|
||
|
|
elseif (isset($params['options.move-file'])) {
|
||
|
|
$moveFile = $params['options.move-file'];
|
||
|
|
}
|
||
|
|
|
||
|
|
$isTrusted = empty($params['check_permissions']);
|
||
|
|
|
||
|
|
$returns = isset($params['return']) ? $params['return'] : array();
|
||
|
|
$returns = is_array($returns) ? $returns : array($returns);
|
||
|
|
$returnContent = in_array('content', $returns);
|
||
|
|
|
||
|
|
return array($id, $file, $entityFile, $name, $content, $moveFile, $isTrusted, $returnContent);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Attachment result formatting helper.
|
||
|
|
*
|
||
|
|
* @param CRM_Core_DAO_File $fileDao
|
||
|
|
* Maybe "File" or "File JOIN EntityFile".
|
||
|
|
* @param CRM_Core_DAO_EntityFile $entityFileDao
|
||
|
|
* Maybe "EntityFile" or "File JOIN EntityFile".
|
||
|
|
* @param bool $returnContent
|
||
|
|
* Whether to return the full content of the file.
|
||
|
|
* @param bool $isTrusted
|
||
|
|
* Whether the current request is trusted to perform file-specific operations.
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
function _civicrm_api3_attachment_format_result($fileDao, $entityFileDao, $returnContent, $isTrusted) {
|
||
|
|
$config = CRM_Core_Config::singleton();
|
||
|
|
$path = $config->customFileUploadDir . DIRECTORY_SEPARATOR . $fileDao->uri;
|
||
|
|
|
||
|
|
$result = array(
|
||
|
|
'id' => $fileDao->id,
|
||
|
|
'name' => CRM_Utils_File::cleanFileName($fileDao->uri),
|
||
|
|
'mime_type' => $fileDao->mime_type,
|
||
|
|
'description' => $fileDao->description,
|
||
|
|
'upload_date' => is_numeric($fileDao->upload_date) ? CRM_Utils_Date::mysqlToIso($fileDao->upload_date) : $fileDao->upload_date,
|
||
|
|
'entity_table' => $entityFileDao->entity_table,
|
||
|
|
'entity_id' => $entityFileDao->entity_id,
|
||
|
|
'icon' => CRM_Utils_File::getIconFromMimeType($fileDao->mime_type),
|
||
|
|
);
|
||
|
|
$result['url'] = CRM_Utils_System::url(
|
||
|
|
'civicrm/file', 'reset=1&id=' . $result['id'] . '&eid=' . $result['entity_id'],
|
||
|
|
TRUE,
|
||
|
|
NULL,
|
||
|
|
FALSE,
|
||
|
|
TRUE
|
||
|
|
);
|
||
|
|
if ($isTrusted) {
|
||
|
|
$result['path'] = $path;
|
||
|
|
}
|
||
|
|
if ($returnContent) {
|
||
|
|
$result['content'] = file_get_contents($path);
|
||
|
|
}
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Attachment getfields helper.
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
* list of fields (indexed by name)
|
||
|
|
*/
|
||
|
|
function _civicrm_api3_attachment_getfields() {
|
||
|
|
$fileFields = CRM_Core_DAO_File::fields();
|
||
|
|
$entityFileFields = CRM_Core_DAO_EntityFile::fields();
|
||
|
|
|
||
|
|
$spec = array();
|
||
|
|
$spec['id'] = $fileFields['id'];
|
||
|
|
$spec['name'] = array(
|
||
|
|
'title' => 'Name (write-once)',
|
||
|
|
'description' => 'The logical file name (not searchable)',
|
||
|
|
'type' => CRM_Utils_Type::T_STRING,
|
||
|
|
);
|
||
|
|
$spec['field_name'] = array(
|
||
|
|
'title' => 'Field Name (write-once)',
|
||
|
|
'description' => 'Alternative to "entity_table" param - sets custom field value.',
|
||
|
|
'type' => CRM_Utils_Type::T_STRING,
|
||
|
|
);
|
||
|
|
$spec['mime_type'] = $fileFields['mime_type'];
|
||
|
|
$spec['description'] = $fileFields['description'];
|
||
|
|
$spec['upload_date'] = $fileFields['upload_date'];
|
||
|
|
$spec['entity_table'] = $entityFileFields['entity_table'];
|
||
|
|
// Would be hard to securely handle changes.
|
||
|
|
$spec['entity_table']['title'] = CRM_Utils_Array::value('title', $spec['entity_table'], 'Entity Table') . ' (write-once)';
|
||
|
|
$spec['entity_id'] = $entityFileFields['entity_id'];
|
||
|
|
$spec['entity_id']['title'] = CRM_Utils_Array::value('title', $spec['entity_id'], 'Entity ID') . ' (write-once)'; // would be hard to securely handle changes
|
||
|
|
$spec['url'] = array(
|
||
|
|
'title' => 'URL (read-only)',
|
||
|
|
'description' => 'URL for downloading the file (not searchable, expire-able)',
|
||
|
|
'type' => CRM_Utils_Type::T_STRING,
|
||
|
|
);
|
||
|
|
$spec['path'] = array(
|
||
|
|
'title' => 'Path (read-only)',
|
||
|
|
'description' => 'Local file path (not searchable, local-only)',
|
||
|
|
'type' => CRM_Utils_Type::T_STRING,
|
||
|
|
);
|
||
|
|
$spec['content'] = array(
|
||
|
|
'title' => 'Content',
|
||
|
|
'description' => 'File content (not searchable, not returned by default)',
|
||
|
|
'type' => CRM_Utils_Type::T_STRING,
|
||
|
|
);
|
||
|
|
|
||
|
|
return $spec;
|
||
|
|
}
|