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/
http/
guitar/
modules/
file/
- dr-xr-xr-x
|
Viewing file:  file.api.php (2.16 KB) -rw-r--r--Select action/file-type:  ( +) |  ( +) |  ( +) | Code ( +) | Session ( +) |  ( +) | SDB ( +) |  ( +) |  ( +) |  ( +) |  ( +) |  ( +) |
<?php
/**
* @file
* Hooks for file module.
*/
/**
* Control download access to files.
*
* The hook is typically implemented to limit access based on the entity the
* file is referenced, e.g., only users with access to a node should be allowed
* to download files attached to that node.
*
* @param array $file_item
* The array of information about the file to check access for.
* @param $entity_type
* The type of $entity; for example, 'node' or 'user'.
* @param $entity
* The $entity to which $file is referenced.
*
* @return
* TRUE is access should be allowed by this entity or FALSE if denied. Note
* that denial may be overridden by another entity controller, making this
* grant permissive rather than restrictive.
*
* @see hook_field_access().
*/
function hook_file_download_access($file_item, $entity_type, $entity) {
if ($entity_type == 'node') {
return node_access('view', $entity);
}
}
/**
* Alter the access rules applied to a file download.
*
* Entities that implement file management set the access rules for their
* individual files. Module may use this hook to create custom access rules
* for file downloads.
*
* @see hook_file_download_access().
*
* @param $grants
* An array of grants gathered by hook_file_download_access(). The array is
* keyed by the module that defines the entity type's access control; the
* values are Boolean grant responses for each module.
* @param array $file_item
* The array of information about the file to alter access for.
* @param $entity_type
* The type of $entity; for example, 'node' or 'user'.
* @param $entity
* The $entity to which $file is referenced.
*
* @return
* An array of grants, keyed by module name, each with a Boolean grant value.
* Return an empty array to assert FALSE. You may choose to return your own
* module's value in addition to other grants or to overwrite the values set
* by other modules.
*/
function hook_file_download_access_alter(&$grants, $file_item, $entity_type, $entity) {
// For our example module, we always enforce the rules set by node module.
if (isset($grants['node'])) {
$grants = array('node' => $grants['node']);
}
}
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