gecko-dev/netwerk/base/public/nsIPermissionManager.idl

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
* This file contains an interface to the Permission Manager,
* used to persistenly store permissions for different object types (cookies,
* images etc) on a site-by-site basis.
*
* This service broadcasts the following notification when the permission list
* is changed:
*
* topic : "perm-changed" (PERM_CHANGE_NOTIFICATION)
* broadcast whenever the permission list changes in some way. there
* are four possible data strings for this notification; one
* notification will be broadcast for each change, and will involve
* a single permission.
* subject: an nsIPermission interface pointer representing the permission object
* that changed.
* data : "deleted"
* a permission was deleted. the subject is the deleted permission.
* "added"
* a permission was added. the subject is the added permission.
* "changed"
* a permission was changed. the subject is the new permission.
* "cleared"
* the entire permission list was cleared. the subject is null.
*/
#include "nsISupports.idl"
#include "nsISimpleEnumerator.idl"
interface nsIURI;
interface nsIObserver;
interface nsIPrincipal;
[scriptable, uuid(da33450a-f3cb-4fdb-93ee-219644e450c2)]
interface nsIPermissionManager : nsISupports
{
/**
* Predefined return values for the testPermission method and for
* the permission param of the add method
* NOTE: UNKNOWN_ACTION (0) is reserved to represent the
* default permission when no entry is found for a host, and
* should not be used by consumers to indicate otherwise.
*/
const uint32_t UNKNOWN_ACTION = 0;
const uint32_t ALLOW_ACTION = 1;
const uint32_t DENY_ACTION = 2;
/**
* Predefined expiration types for permissions. Permissions can be permanent
* (never expire), expire at the end of the session, or expire at a specified
* time.
*/
const uint32_t EXPIRE_NEVER = 0;
const uint32_t EXPIRE_SESSION = 1;
const uint32_t EXPIRE_TIME = 2;
/**
* Add permission information for a given URI and permission type. This
* operation will cause the type string to be registered if it does not
* currently exist. If a permission already exists for a given type, it
* will be modified.
*
* @param uri the uri to add the permission for
* @param type a case-sensitive ASCII string, identifying the consumer.
* Consumers should choose this string to be unique, with
* respect to other consumers.
* @param permission an integer representing the desired action (e.g. allow
* or deny). The interpretation of this number is up to the
* consumer, and may represent different actions for different
* types. Consumers may use one of the enumerated permission
* actions defined above, for convenience.
* NOTE: UNKNOWN_ACTION (0) is reserved to represent the
* default permission when no entry is found for a host, and
* should not be used by consumers to indicate otherwise.
* @param expiretype a constant defining whether this permission should
* never expire (EXPIRE_NEVER), expire at the end of the
* session (EXPIRE_SESSION), or expire at a specified time
* (EXPIRE_TIME).
* @param expiretime an integer representation of when this permission
* should be forgotten (milliseconds since Jan 1 1970 0:00:00).
*/
void add(in nsIURI uri,
in string type,
in uint32_t permission,
[optional] in uint32_t expireType,
[optional] in int64_t expireTime);
/**
* Add permission information for a given principal.
* It is internally calling the other add() method using the nsIURI from the
* principal.
* Passing a system principal will be a no-op because they will always be
* granted permissions.
*/
void addFromPrincipal(in nsIPrincipal principal, in string typed,
in uint32_t permission,
[optional] in uint32_t expireType,
[optional] in int64_t expireTime);
/**
* Remove permission information for a given host string and permission type.
* The host string represents the exact entry in the permission list (such as
* obtained from the enumerator), not a URI which that permission might apply
* to.
*
* @param host the host to remove the permission for
* @param type a case-sensitive ASCII string, identifying the consumer.
* The type must have been previously registered using the
* add() method.
*/
void remove(in AUTF8String host,
in string type);
/**
* Remove permission information for a given principal.
* This is internally calling remove() with the host from the principal's URI.
* Passing system principal will be a no-op because we never add them to the
* database.
*/
void removeFromPrincipal(in nsIPrincipal principal, in string type);
/**
* Clear permission information for all websites.
*/
void removeAll();
/**
* Test whether a website has permission to perform the given action.
* @param uri the uri to be tested
* @param type a case-sensitive ASCII string, identifying the consumer
* @param return see add(), param permission. returns UNKNOWN_ACTION when
* there is no stored permission for this uri and / or type.
*/
uint32_t testPermission(in nsIURI uri,
in string type);
/**
* Test whether the principal has the permission to perform a given action.
* System principals will always have permissions granted.
*/
uint32_t testPermissionFromPrincipal(in nsIPrincipal principal,
in string type);
/**
* Test whether a website has permission to perform the given action.
* This requires an exact hostname match, subdomains are not a match.
* @param uri the uri to be tested
* @param type a case-sensitive ASCII string, identifying the consumer
* @param return see add(), param permission. returns UNKNOWN_ACTION when
* there is no stored permission for this uri and / or type.
*/
uint32_t testExactPermission(in nsIURI uri,
in string type);
/**
* See testExactPermission() above.
* System principals will always have permissions granted.
*/
uint32_t testExactPermissionFromPrincipal(in nsIPrincipal principal,
in string type);
/**
* Allows enumeration of all stored permissions
* @return an nsISimpleEnumerator interface that allows access to
* nsIPermission objects
*/
readonly attribute nsISimpleEnumerator enumerator;
/**
* Remove all permissions associated with a given app id.
*/
void removePermissionsForApp(in unsigned long appId);
};
%{ C++
#define NS_PERMISSIONMANAGER_CONTRACTID "@mozilla.org/permissionmanager;1"
#define PERM_CHANGE_NOTIFICATION "perm-changed"
%}