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<?php |
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/** |
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* This files contains the common functions for the permissions. |
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* |
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* A list of all the functions (in no particular order) |
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* ---------------------------------------------------- |
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* store_permissions($content,$id) |
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* get_permissions($content,$id) |
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* limited_or_full($current_permissions) |
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* |
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* @author Patrick Cool <[email protected]>, Ghent University |
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* |
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* @package chamilo.permissions |
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*/ |
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/** |
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* This function stores the permissions in the correct table. |
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* Since Checkboxes are used we do not know which ones are unchecked. |
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* That's why we first delete them all (for the given user/group/role |
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* and afterwards we store the checked ones only. |
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* |
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* @param $content are we storing rights for a user, a group or a role (the database depends on it) |
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* @param $id the id of the user, group or role |
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* |
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* @author Patrick Cool <[email protected]>, Ghent University |
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* |
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* @version 1.0 |
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*/ |
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function store_permissions($content, $id) |
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{ |
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$course_id = api_get_course_int_id(); |
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// Which database are we using (depending on the $content parameter) |
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if ($content == 'user') { |
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$table = Database::get_course_table(TABLE_PERMISSION_USER); |
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$id_field = user_id; |
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} |
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if ($content == 'group') { |
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$table = Database::get_course_table(TABLE_PERMISSION_GROUP); |
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$id_field = group_id; |
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} |
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if ($content == 'role') { |
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$table = Database::get_course_table(TABLE_ROLE_PERMISSION); |
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$id_field = role_id; |
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} |
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// We first delete all the existing permissions for that user/group/role |
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$sql = "DELETE FROM $table WHERE c_id = $course_id AND $id_field = '".Database::escape_string($id)."'"; |
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$result = Database::query($sql); |
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// looping through the post values to find the permission (containing the string permission* ) |
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foreach ($_POST as $key => $value) { |
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if (strstr($key, "permission*")) { |
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list($brol, $tool, $action) = explode("*", $key); |
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$sql = "INSERT INTO $table (c_id, $id_field,tool,action) VALUES ($course_id, '".Database::escape_string($id)."','".Database::escape_string($tool)."','".Database::escape_string($action)."')"; |
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$result = Database::query($sql); |
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} |
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} |
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return get_lang('PermissionsStored'); |
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} |
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/** |
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* This function stores one permission in the correct table. |
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* |
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* @param $content are we storing rights for a user, a group or a role (the database depends on it) |
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* @param $action are we granting or revoking a permission? |
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* @param $id the id of the user, group or role |
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* @param $tool the tool |
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* @param $permission the permission the user, group or role has been granted or revoked |
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* |
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* @author Patrick Cool <[email protected]>, Ghent University |
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* |
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* @version 1.0 |
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*/ |
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function store_one_permission($content, $action, $id, $tool, $permission) |
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{ |
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global $rights_full; |
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$course_id = api_get_course_int_id(); |
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// for some reason I don't know, he can't get to the $rights_full array, so commented the following lines out. |
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// check |
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//if(!in_array($permission, $rights_full)) |
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//{ |
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// return get_lang('Error'); |
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//} |
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// Which database are we using (depending on the $content parameter) |
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if ($content == 'user') { |
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$table = Database::get_course_table(TABLE_PERMISSION_USER); |
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$id_field = user_id; |
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} |
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if ($content == 'group') { |
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$table = Database::get_course_table(TABLE_PERMISSION_GROUP); |
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$id_field = group_id; |
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} |
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if ($content == 'role') { |
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$table = Database::get_course_table(TABLE_ROLE_PERMISSION); |
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$id_field = role_id; |
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} |
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// grating a right |
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if ($action == 'grant') { |
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$sql = "INSERT INTO $table (c_id, $id_field,tool,action) VALUES ($course_id, '".Database::escape_string($id)."','".Database::escape_string($tool)."','".Database::escape_string($permission)."')"; |
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$result = Database::query($sql); |
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if ($result) { |
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$result_message = get_lang('PermissionGranted'); |
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} |
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} |
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if ($action == 'revoke') { |
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$sql = "DELETE FROM $table WHERE c_id = $course_id AND $id_field = '".Database::escape_string($id)."' AND tool='".Database::escape_string($tool)."' AND action='".Database::escape_string($permission)."'"; |
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$result = Database::query($sql); |
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if ($result) { |
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$result_message = get_lang('PermissionRevoked'); |
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} |
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} |
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return $result_message; |
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} |
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/** |
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* This function retrieves the existing permissions of a user, group or role. |
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* |
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* @param string $content are we retrieving the rights of a user, a group or a role (the database depends on it) |
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* @param int $id the id of the user, group or role |
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* |
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* @author Patrick Cool <[email protected]>, Ghent University |
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* |
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* @version 1.0 |
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*/ |
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function get_permissions($content, $id) |
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{ |
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$course_id = api_get_course_int_id(); |
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$currentpermissions = []; |
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// Which database are we using (depending on the $content parameter) |
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$course_id_condition = " c_id = $course_id AND "; |
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if ($content == 'user') { |
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$table = Database::get_course_table(TABLE_PERMISSION_USER); |
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$id_field = 'user_id'; |
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} elseif ($content == 'group') { |
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$table = Database::get_course_table(TABLE_PERMISSION_GROUP); |
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$id_field = 'group_id'; |
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} elseif ($content == 'role') { |
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$table = Database::get_course_table(TABLE_ROLE_PERMISSION); |
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$id_field = 'role_id'; |
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} elseif ($content == 'platform_role') { |
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$table = Database::get_main_table(TABLE_ROLE_PERMISSION); |
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$id_field = 'role_id'; |
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$course_id_condition = ''; |
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} elseif ($content == 'task') { |
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$table = Database::get_course_table(TABLE_BLOGS_TASKS_PERMISSIONS); |
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$id_field = 'task_id'; |
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} |
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// finding all the permissions. We store this in a multidimensional array |
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// where the first dimension is the tool. |
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$sql = " |
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SELECT * FROM ".$table." |
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WHERE $course_id_condition ".$id_field."='".Database::escape_string($id)."'"; |
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$result = Database::query($sql); |
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while ($row = Database::fetch_array($result)) { |
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$currentpermissions[$row['tool']][] = $row['action']; |
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} |
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return $currentpermissions; |
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} |
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/** |
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* the array that contains the current permission a user, group or role has will now be changed depending on |
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* the Dokeos Config Setting for the permissions (limited [add, edit, delete] or full [view, add, edit, delete, move, visibility]. |
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* |
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* @author Patrick Cool <[email protected]>, Ghent University |
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* |
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* @version 1.0 |
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* |
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* @todo currently there is a setting user_permissions and group_permissions. We should merge this in one config setting. |
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*/ |
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function limited_or_full($current_permissions) |
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{ |
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if (api_get_setting('permissions') == 'limited') { |
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foreach ($current_permissions as $tool => $tool_rights) { |
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// we loop through the possible permissions of a tool and unset the entry if it is view |
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// if it is visibility or move we have to grant the edit right |
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foreach ($tool_rights as $key => $value) { |
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if ($value == 'View') { |
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unset($current_permissions[$tool][$key]); |
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} |
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if ($value == 'Visibility' or $value == 'Move') { |
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if (!in_array('Edit', $current_permissions[$tool])) { |
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$current_permissions[$tool][] = 'Edit'; |
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} |
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unset($current_permissions[$tool][$key]); |
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} |
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//else |
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//{ |
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// $current_permissions[$tool][]=$value; |
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//} |
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} |
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} |
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return $current_permissions; |
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} |
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if (api_get_setting('permissions') == 'full') { |
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return $current_permissions; |
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} |
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} |
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/** |
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* This function displays a checked or unchecked checkbox. The checkbox will be checked if the |
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* user, group or role has the permission for the given tool, unchecked if the user, group or role |
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* does not have the right. |
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* |
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* @param $permission_array the array that contains all the permissions of the user, group, role |
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* @param $tool the tool we want to check a permission for |
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* @param $permission the permission we want to check for |
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* |
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* @author Patrick Cool <[email protected]>, Ghent University |
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* |
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* @version 1.0 |
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*/ |
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function display_checkbox_matrix($permission_array, $tool, $permission, $inherited_permissions = []) |
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{ |
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$checked = ""; |
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if (is_array($permission_array[$tool]) and in_array($permission, $permission_array[$tool])) { |
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$checked = "checked"; |
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} |
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echo "\t\t\t<input type=\"checkbox\" name=\"permission*$tool*$permission\" $checked>\n"; |
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} |
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/** |
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* This function displays a checked or unchecked image. The image will be checked if the |
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* user, group or role has the permission for the given tool, unchecked if the user, group or role |
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* does not have the right. |
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* |
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* @param $permission_array the array that contains all the permissions of the user, group, role |
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* @param $tool the tool we want to check a permission for |
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* @param $permission the permission we want to check for |
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* |
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* @author Patrick Cool <[email protected]>, Ghent University |
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* |
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* @version 1.0 |
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*/ |
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function display_image_matrix($permission_array, $tool, $permission, $inherited_permissions = [], $course_admin = false, $editable = true) |
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{ |
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if ($course_admin) { |
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echo "\t\t\t<img src=\"../img/checkbox_on3.gif\" border=\"0\"/ title=\"".get_lang('PermissionGrantedByGroupOrRole')."\">"; |
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} else { |
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if (in_array($permission, $inherited_permissions[$tool])) { |
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echo "\t\t\t<img src=\"../img/checkbox_on3.gif\" border=\"0\"/ title=\"".get_lang('PermissionGrantedByGroupOrRole')."\">"; |
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} else { |
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if (is_array($permission_array[$tool]) and in_array($permission, $permission_array[$tool])) { |
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if ($editable) { |
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$url = api_get_self(); |
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$urlparameters = ''; |
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foreach ($_GET as $key => $value) { |
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$parameter[$key] = $value; |
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} |
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$parameter['action'] = 'revoke'; |
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$parameter['permission'] = $permission; |
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$parameter['tool'] = $tool; |
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foreach ($parameter as $key => $value) { |
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$urlparameters .= $key.'='.$value.'&'; |
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} |
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$url = $url.'?'.$urlparameters; |
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echo "\t\t\t <a href=\"".$url."\">"; |
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} |
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echo "<img src=\"../img/checkbox_on2.gif\" border=\"0\"/>"; |
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if ($editable) { |
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echo "</a>"; |
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} |
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} else { |
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if ($editable) { |
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$url = api_get_self(); |
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$urlparameters = ''; |
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foreach ($_GET as $key => $value) { |
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$parameter[$key] = $value; |
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} |
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$parameter['action'] = 'grant'; |
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$parameter['permission'] = $permission; |
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$parameter['tool'] = $tool; |
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foreach ($parameter as $key => $value) { |
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$urlparameters .= $key.'='.$value.'&'; |
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} |
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$url = $url.'?'.$urlparameters; |
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//echo "\t\t\t <a href=\"".str_replace('&', '&', $_SERVER['REQUEST_URI'])."&action=grant&permission=$permission&tool=$tool\">"; |
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echo "\t\t\t <a href=\"".$url."\">"; |
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} |
|
291
|
|
|
echo "<img src=\"../img/wrong.gif\" border=\"0\"/>"; |
|
292
|
|
|
if ($editable) { |
|
293
|
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|
echo "</a>"; |
|
294
|
|
|
} |
|
295
|
|
|
} |
|
296
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|
|
} |
|
297
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|
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} |
|
298
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} |
|
299
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|
|
300
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|
|
/** |
|
301
|
|
|
* Slightly modified: Toon Keppens |
|
302
|
|
|
* This function displays a checked or unchecked image. The image will be checked if the |
|
303
|
|
|
* user, group or role has the permission for the given tool, unchecked if the user, group or role |
|
304
|
|
|
* does not have the right. |
|
305
|
|
|
* |
|
306
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|
|
* @param $permission_array the array that contains all the permissions of the user, group, role |
|
307
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|
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* @param $tool the tool we want to check a permission for |
|
308
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|
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* @param $permission the permission we want to check for |
|
309
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|
|
* |
|
310
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|
|
* @author Patrick Cool <[email protected]>, Ghent University |
|
311
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|
|
* |
|
312
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|
|
* @version 1.0 |
|
313
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|
|
*/ |
|
314
|
|
|
function display_image_matrix_for_blogs($permission_array, $user_id, $tool, $permission, $inherited_permissions = [], $course_admin = false, $editable = true) |
|
315
|
|
|
{ |
|
316
|
|
|
if ($course_admin) { |
|
317
|
|
|
echo "\t\t\t<img src=\"../img/checkbox_on3.gif\" border=\"0\"/ title=\"".get_lang('PermissionGrantedByGroupOrRole')."\">"; |
|
318
|
|
|
} else { |
|
319
|
|
|
if (!empty($inherited_permissions) and in_array($permission, $inherited_permissions[$tool])) { |
|
320
|
|
|
echo "\t\t\t<img src=\"../img/checkbox_on3.gif\" border=\"0\"/ title=\"".get_lang('PermissionGrantedByGroupOrRole')."\">"; |
|
321
|
|
|
} else { |
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322
|
|
|
if (is_array($permission_array[$tool]) and in_array($permission, $permission_array[$tool])) { |
|
323
|
|
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if ($editable) { |
|
324
|
|
|
$url = api_get_self(); |
|
325
|
|
|
$urlparameters = ''; |
|
326
|
|
|
foreach ($_GET as $key => $value) { |
|
327
|
|
|
$parameter[$key] = $value; |
|
328
|
|
|
} |
|
329
|
|
|
$parameter['action'] = 'manage_rights'; |
|
330
|
|
|
$parameter['do'] = 'revoke'; |
|
331
|
|
|
$parameter['permission'] = $permission; |
|
332
|
|
|
$parameter['tool'] = $tool; |
|
333
|
|
|
$parameter['user_id'] = $user_id; |
|
334
|
|
|
foreach ($parameter as $key => $value) { |
|
|
|
|
|
|
335
|
|
|
$urlparameters .= $key.'='.$value.'&'; |
|
336
|
|
|
} |
|
337
|
|
|
$url = $url.'?'.$urlparameters; |
|
338
|
|
|
|
|
339
|
|
|
echo "\t\t\t <a href=\"".$url."\">"; |
|
340
|
|
|
} |
|
341
|
|
|
echo "<img src=\"../img/checkbox_on2.gif\" border=\"0\"/ title=\"".get_lang('UserHasPermission')."\">"; |
|
342
|
|
|
if ($editable) { |
|
343
|
|
|
echo "</a>"; |
|
344
|
|
|
} |
|
345
|
|
|
} else { |
|
346
|
|
|
if ($editable) { |
|
347
|
|
|
$url = api_get_self(); |
|
348
|
|
|
$urlparameters = ''; |
|
349
|
|
|
foreach ($_GET as $key => $value) { |
|
350
|
|
|
$parameter[$key] = $value; |
|
351
|
|
|
} |
|
352
|
|
|
$parameter['action'] = 'manage_rights'; |
|
353
|
|
|
$parameter['do'] = 'grant'; |
|
354
|
|
|
$parameter['permission'] = $permission; |
|
355
|
|
|
$parameter['tool'] = $tool; |
|
356
|
|
|
$parameter['user_id'] = $user_id; |
|
357
|
|
|
foreach ($parameter as $key => $value) { |
|
358
|
|
|
$urlparameters .= $key.'='.$value.'&'; |
|
359
|
|
|
} |
|
360
|
|
|
$url = $url.'?'.$urlparameters; |
|
361
|
|
|
|
|
362
|
|
|
//echo "\t\t\t <a href=\"".str_replace('&', '&', $_SERVER['REQUEST_URI'])."&action=grant&permission=$permission&tool=$tool\">"; |
|
363
|
|
|
echo "\t\t\t <a href=\"".$url."\">"; |
|
364
|
|
|
} |
|
365
|
|
|
echo "<img src=\"../img/wrong.gif\" border=\"0\"/ title=\"".get_lang('UserHasPermissionNot')."\">"; |
|
366
|
|
|
if ($editable) { |
|
367
|
|
|
echo "</a>"; |
|
368
|
|
|
} |
|
369
|
|
|
} |
|
370
|
|
|
} |
|
371
|
|
|
} |
|
372
|
|
|
} |
|
373
|
|
|
|
|
374
|
|
|
/** |
|
375
|
|
|
* This function displays a list off all the roles of the course (and those defined by the platform admin). |
|
376
|
|
|
* |
|
377
|
|
|
* @author Patrick Cool <[email protected]>, Ghent University |
|
378
|
|
|
* |
|
379
|
|
|
* @version 1.0 |
|
380
|
|
|
*/ |
|
381
|
|
|
function display_role_list($current_course_roles, $current_platform_roles) |
|
382
|
|
|
{ |
|
383
|
|
|
global $setting_visualisation; |
|
384
|
|
|
$course_id = api_get_course_int_id(); |
|
385
|
|
|
|
|
386
|
|
|
$coures_roles_table = Database::get_course_table(TABLE_ROLE); |
|
387
|
|
|
|
|
388
|
|
|
// course roles |
|
389
|
|
|
$sql = "SELECT * FROM $coures_roles_table WHERE c_id = $course_id "; |
|
390
|
|
|
$result = Database::query($sql); |
|
391
|
|
|
while ($row = Database::fetch_array($result)) { |
|
392
|
|
|
if (in_array($row['role_id'], $current_course_roles)) { |
|
393
|
|
|
$checked = 'checked'; |
|
394
|
|
|
$image = 'checkbox_on2.gif'; |
|
395
|
|
|
$action = 'revoke'; |
|
396
|
|
|
} else { |
|
397
|
|
|
$checked = ''; |
|
398
|
|
|
$image = 'wrong.gif'; |
|
399
|
|
|
$action = 'grant'; |
|
400
|
|
|
} |
|
401
|
|
|
if ($setting_visualisation == 'checkbox') { |
|
402
|
|
|
echo "<input type=\"checkbox\" name=\"role*course*".$row['role_id']."\" $checked>"; |
|
403
|
|
|
} |
|
404
|
|
|
if ($setting_visualisation == 'image') { |
|
405
|
|
|
echo "<a href=\"".str_replace('&', '&', $_SERVER['REQUEST_URI'])."&action=$action&role=".$row['role_id']."&scope=course\"><img src=\"../img/".$image."\" border=\"0\"/></a>"; |
|
406
|
|
|
} |
|
407
|
|
|
|
|
408
|
|
|
echo $row['role_name']." <a href=\"../permissions/roles.php?role_id=".$row['role_id']."&scope=course\"><img src=\"../img/edit.gif\" /></a><br />\n"; |
|
409
|
|
|
echo $row['role_comment']."<br />\n"; |
|
410
|
|
|
} |
|
411
|
|
|
} |
|
412
|
|
|
|
|
413
|
|
|
/** |
|
414
|
|
|
* This function gets all the current roles of the user or group. |
|
415
|
|
|
* |
|
416
|
|
|
* @param $content are we finding the roles for a user or a group (the database depends on it) |
|
417
|
|
|
* @param $id the id of the user or group |
|
418
|
|
|
* |
|
419
|
|
|
* @return array that contains the name of the roles the user has |
|
420
|
|
|
* |
|
421
|
|
|
* @todo consider having a separate table that contains only an id and a name of the role. |
|
422
|
|
|
* |
|
423
|
|
|
* @author Patrick Cool <[email protected]>, Ghent University |
|
424
|
|
|
* |
|
425
|
|
|
* @version 1.0 |
|
426
|
|
|
*/ |
|
427
|
|
|
function get_roles($content, $id, $scope = 'course') |
|
428
|
|
|
{ |
|
429
|
|
|
$course_id = api_get_course_int_id(); |
|
430
|
|
|
if ($content == 'user') { |
|
431
|
|
|
$table = Database::get_course_table(TABLE_ROLE_USER); |
|
432
|
|
|
$id_field = user_id; |
|
|
|
|
|
|
433
|
|
|
} |
|
434
|
|
|
if ($content == 'group') { |
|
435
|
|
|
$table = Database::get_course_table(TABLE_ROLE_GROUP); |
|
436
|
|
|
$id_field = 'group_id'; |
|
437
|
|
|
} |
|
438
|
|
|
$table_role = Database::get_course_table(TABLE_ROLE); |
|
439
|
|
|
|
|
440
|
|
|
$current_roles = []; |
|
441
|
|
|
//$sql="SELECT role.role_id FROM $table role_group_user, $table_role role WHERE role_group_user.$id_field = '$id' AND role_group_user.role_id=role.role_id AND role_group_user.scope='".$scope."'";$sql="SELECT role.role_id FROM $table role_group_user, $table_role role WHERE role_group_user.$id_field = '$id' AND role_group_user.role_id=role.role_id AND role_group_user.scope='".$scope."'"; |
|
442
|
|
|
$sql = "SELECT role_id FROM $table WHERE c_id = $course_id AND $id_field = '$id' AND scope='".$scope."'"; |
|
|
|
|
|
|
443
|
|
|
$result = Database::query($sql); |
|
444
|
|
|
while ($row = Database::fetch_array($result)) { |
|
445
|
|
|
$current_roles[] = $row['role_id']; |
|
446
|
|
|
} |
|
447
|
|
|
|
|
448
|
|
|
return $current_roles; |
|
449
|
|
|
} |
|
450
|
|
|
|
|
451
|
|
|
/** |
|
452
|
|
|
* This function gets all the current roles of the user or group. |
|
453
|
|
|
* |
|
454
|
|
|
* @return array that contains the name of the roles the user has |
|
455
|
|
|
* |
|
456
|
|
|
* @author Patrick Cool <[email protected]>, Ghent University |
|
457
|
|
|
* |
|
458
|
|
|
* @version 1.0 |
|
459
|
|
|
*/ |
|
460
|
|
|
function get_all_roles($content = 'course') |
|
461
|
|
|
{ |
|
462
|
|
|
$course_id = api_get_course_int_id(); |
|
463
|
|
|
$course_id_condition = " WHERE c_id = $course_id "; |
|
464
|
|
|
|
|
465
|
|
|
if ($content == 'course') { |
|
466
|
|
|
$table_role = Database::get_course_table(TABLE_ROLE); |
|
467
|
|
|
} |
|
468
|
|
|
if ($content == 'platform') { |
|
469
|
|
|
$table_role = Database::get_main_table(TABLE_ROLE); |
|
470
|
|
|
$course_id_condition = ''; |
|
471
|
|
|
} |
|
472
|
|
|
|
|
473
|
|
|
$current_roles = []; |
|
474
|
|
|
$sql = "SELECT * FROM $table_role $course_id_condition "; |
|
|
|
|
|
|
475
|
|
|
$result = Database::query($sql); |
|
476
|
|
|
while ($row = Database::fetch_array($result)) { |
|
477
|
|
|
$roles[] = $row; |
|
478
|
|
|
} |
|
479
|
|
|
|
|
480
|
|
|
return $roles; |
|
|
|
|
|
|
481
|
|
|
} |
|
482
|
|
|
|
|
483
|
|
|
/** |
|
484
|
|
|
* This function gets all the roles that are defined. |
|
485
|
|
|
* |
|
486
|
|
|
* @param string $content are we finding the roles for a user or a group (the database depends on it) |
|
487
|
|
|
* @param int $id the id of the user or group |
|
488
|
|
|
* @param string $scope Deprecated parameter allowing use of 'platform' scope - the corresponding tables don't exist anymore so the scope is always set to 'course' |
|
489
|
|
|
* |
|
490
|
|
|
* @return array that contains the name of the roles the user has |
|
491
|
|
|
* |
|
492
|
|
|
* @todo consider having a separate table that contains only an id and a name of the role. |
|
493
|
|
|
* |
|
494
|
|
|
* @author Patrick Cool <[email protected]>, Ghent University |
|
495
|
|
|
* |
|
496
|
|
|
* @version 1.0 |
|
497
|
|
|
*/ |
|
498
|
|
|
function get_roles_permissions($content, $id, $scope = 'course') |
|
499
|
|
|
{ |
|
500
|
|
|
$course_id = api_get_course_int_id(); |
|
501
|
|
|
if ($content == 'user') { |
|
502
|
|
|
$table = Database::get_course_table(TABLE_ROLE_USER); |
|
503
|
|
|
$id_field = 'user_id'; |
|
504
|
|
|
} |
|
505
|
|
|
|
|
506
|
|
|
if ($content == 'group') { |
|
507
|
|
|
$table = Database::get_course_table(TABLE_ROLE_GROUP); |
|
508
|
|
|
$id_field = 'group_id'; |
|
509
|
|
|
} |
|
510
|
|
|
|
|
511
|
|
|
// course roles or platform roles |
|
512
|
|
|
$scope = 'course'; |
|
513
|
|
|
if ($scope == 'course') { |
|
514
|
|
|
$table_role = Database::get_course_table(TABLE_ROLE); |
|
515
|
|
|
$table_role_permissions = Database::get_course_table(TABLE_ROLE_PERMISSION); |
|
516
|
|
|
|
|
517
|
|
|
$role_condition = " role.c_id = $course_id AND role_permissions.c_id = $course_id AND "; |
|
518
|
|
|
} |
|
519
|
|
|
|
|
520
|
|
|
if ($scope == 'platform') { |
|
521
|
|
|
$table_role = Database::get_main_table(TABLE_ROLE); |
|
522
|
|
|
$table_role_permissions = Database::get_main_table(TABLE_ROLE_PERMISSION); |
|
523
|
|
|
$role_condition = ''; |
|
524
|
|
|
} |
|
525
|
|
|
|
|
526
|
|
|
$sql = " |
|
527
|
|
|
SELECT * |
|
528
|
|
|
FROM |
|
529
|
|
|
".$table." role_group_user, |
|
|
|
|
|
|
530
|
|
|
".$table_role." role, |
|
|
|
|
|
|
531
|
|
|
".$table_role_permissions." role_permissions |
|
|
|
|
|
|
532
|
|
|
WHERE |
|
533
|
|
|
role_group_user.c_id = $course_id AND |
|
534
|
|
|
$role_condition |
|
|
|
|
|
|
535
|
|
|
role_group_user.scope = '".$scope."' AND |
|
536
|
|
|
role_group_user.".$id_field." = '".$id."' AND |
|
|
|
|
|
|
537
|
|
|
role_group_user.role_id = role.role_id AND |
|
538
|
|
|
role.role_id = role_permissions.role_id"; |
|
539
|
|
|
|
|
540
|
|
|
$result = Database::query($sql); |
|
541
|
|
|
$current_role_permissions = []; |
|
542
|
|
|
while ($row = Database::fetch_array($result)) { |
|
543
|
|
|
$current_role_permissions[$row['tool']][] = $row['action']; |
|
544
|
|
|
} |
|
545
|
|
|
|
|
546
|
|
|
return $current_role_permissions; |
|
547
|
|
|
} |
|
548
|
|
|
|
|
549
|
|
|
/** |
|
550
|
|
|
* This function is called when we assign a role to a user or a group. |
|
551
|
|
|
* |
|
552
|
|
|
* @param $content are we assigning a role to a group or a user |
|
553
|
|
|
* @param $action we can grant a role to a group or user or revoke it |
|
554
|
|
|
* @param $id the user_id of the user or the group_id of the group |
|
555
|
|
|
* @param $role_id the id of the role we are giving to a user or a group |
|
556
|
|
|
* |
|
557
|
|
|
* @author Patrick Cool <[email protected]>, Ghent University |
|
558
|
|
|
*/ |
|
559
|
|
|
function assign_role($content, $action, $id, $role_id, $scope = 'course') |
|
560
|
|
|
{ |
|
561
|
|
|
$course_id = api_get_course_int_id(); |
|
562
|
|
|
// Which database are we using (depending on the $content parameter) |
|
563
|
|
|
if ($content == 'user') { |
|
564
|
|
|
$table = Database::get_course_table(TABLE_ROLE_USER); |
|
565
|
|
|
$id_field = 'user_id'; |
|
566
|
|
|
} elseif ($content == 'group') { |
|
567
|
|
|
$table = Database::get_course_table(TABLE_ROLE_GROUP); |
|
568
|
|
|
$id_field = 'group_id'; |
|
569
|
|
|
} else { |
|
570
|
|
|
return get_lang('Error'); |
|
571
|
|
|
} |
|
572
|
|
|
|
|
573
|
|
|
// grating a right |
|
574
|
|
|
if ($action == 'grant') { |
|
575
|
|
|
$sql = "INSERT INTO $table (c_id, role_id, scope, $id_field) VALUES ($course_id, '".Database::escape_string($role_id)."','".Database::escape_string($scope)."','".Database::escape_string($id)."')"; |
|
576
|
|
|
$result = Database::query($sql); |
|
577
|
|
|
if ($result) { |
|
|
|
|
|
|
578
|
|
|
$result_message = get_lang('RoleGranted'); |
|
579
|
|
|
} |
|
580
|
|
|
} |
|
581
|
|
|
|
|
582
|
|
|
if ($action == 'revoke') { |
|
583
|
|
|
$sql = "DELETE FROM $table WHERE c_id = $course_id AND $id_field = '".Database::escape_string($id)."' AND role_id='".Database::escape_string($role_id)."'"; |
|
584
|
|
|
$result = Database::query($sql); |
|
585
|
|
|
if ($result) { |
|
|
|
|
|
|
586
|
|
|
$result_message = get_lang('RoleRevoked'); |
|
587
|
|
|
} |
|
588
|
|
|
} |
|
589
|
|
|
|
|
590
|
|
|
return $result_message; |
|
|
|
|
|
|
591
|
|
|
} |
|
592
|
|
|
|
|
593
|
|
|
/** |
|
594
|
|
|
* This function merges permission arrays. Each permission array has the |
|
595
|
|
|
* following structure |
|
596
|
|
|
* a permission array has a tool contanst as a key and an array as a value. |
|
597
|
|
|
* This value array consists of all the permissions that are granted in that tool. |
|
598
|
|
|
*/ |
|
599
|
|
|
function permission_array_merge($array1, $array2) |
|
600
|
|
|
{ |
|
601
|
|
|
foreach ($array2 as $tool => $permissions) { |
|
602
|
|
|
foreach ($permissions as $permissionkey => $permissionvalue) { |
|
603
|
|
|
$array1[$tool][] = $permissionvalue; |
|
604
|
|
|
} |
|
605
|
|
|
} |
|
606
|
|
|
|
|
607
|
|
|
return $array1; |
|
608
|
|
|
} |
|
609
|
|
|
|
|
610
|
|
|
function my_print_r($array) |
|
611
|
|
|
{ |
|
612
|
|
|
echo '<pre>'; |
|
613
|
|
|
print_r($array); |
|
614
|
|
|
echo '</pre>'; |
|
615
|
|
|
} |
|
616
|
|
|
|