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/*
* Copyright 2009, The Android Open Source Project
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef GeolocationPermissions_h
#define GeolocationPermissions_h
#include "PlatformString.h"
// We must include this before before HashMap.h, as it provides specalizations
// for String hash types instantiated there.
#include "StringHash.h"
#include "HashMap.h"
#include "HashSet.h"
#include "Timer.h"
#include "Vector.h"
#include "wtf/RefCounted.h"
namespace WebCore {
class Frame;
class Geolocation;
}
namespace android {
class WebViewCore;
// The GeolocationPermissions class manages permissions for the browser.
// Each instance handles permissions for a given main frame. The class
// enforces the following policy.
// - Non-remembered permissions last for the dureation of the main frame.
// - Remembered permissions last indefinitely.
// - All permissions are shared between child frames of a main frame.
// - Only remembered permissions are shared between main frames.
// - Remembered permissions are made available for use in the browser
// settings menu.
class GeolocationPermissions : public RefCounted<GeolocationPermissions> {
public:
// Creates the GeolocationPermissions object to manage permissions for
// the specified main frame (i.e. tab). The WebViewCore is used to
// communicate with the browser to display UI.
GeolocationPermissions(WebViewCore* webViewCore, WebCore::Frame* mainFrame);
virtual ~GeolocationPermissions();
// Queries the permission state for the specified frame. If the
// permission state has not yet been set, prompts the user. Once the
// permission state has been determined, asynchronously calls back to
// the Geolocation objects in all frames in this WebView that are from
// the same origin as the requesting frame.
void queryPermissionState(WebCore::Frame* frame);
// Provides this object the given permission state from the user. The
// new permission state is recorded and will trigger callbacks to
// geolocation objects as described above. If any other permission
// requests are queued, the next is started.
void providePermissionState(WebCore::String origin, bool allow, bool remember);
// Clears the temporary permission state and any pending requests. Used
// when the main frame is refreshed or navigated to a new URL.
void resetTemporaryPermissionStates();
// Static methods for use from Java. These are used to interact with the
// browser settings menu and to update the permanent permissions when
// system settings are changed.
typedef HashSet<WebCore::String> OriginSet;
static OriginSet getOrigins();
static bool getAllowed(WebCore::String origin);
static void clear(WebCore::String origin);
static void allow(WebCore::String origin);
static void clearAll();
static void setAlwaysDeny(bool deny);
static void setDatabasePath(WebCore::String path);
// Saves the permanent permissions to the DB if required.
static void maybeStorePermanentPermissions();
private:
// Records the permission state for the specified origin.
void recordPermissionState(WebCore::String origin, bool allow, bool remember);
// Used to make an asynchronous callback to the Geolocation objects.
void makeAsynchronousCallbackToGeolocation(WebCore::String origin, bool allow);
void timerFired(WebCore::Timer<GeolocationPermissions>* timer);
// Calls back to the Geolocation objects in all frames from the
// specified origin. There may be no such objects, as the frames using
// Geolocation from the specified origin may no longer use Geolocation,
// or may have been navigated to a different origin..
void maybeCallbackFrames(WebCore::String origin, bool allow);
// Cancels pending permission requests for the specified origin in
// other main frames (ie browser tabs). This is used when the user
// specifies permission to be remembered.
static void cancelPendingRequestsInOtherTabs(WebCore::String origin);
void cancelPendingRequests(WebCore::String origin);
static void maybeLoadPermanentPermissions();
WebViewCore* m_webViewCore;
WebCore::Frame* m_mainFrame;
WebCore::String m_originInProgress;
typedef Vector<WebCore::String> OriginVector;
OriginVector m_queuedOrigins;
typedef WTF::HashMap<WebCore::String, bool> PermissionsMap;
PermissionsMap m_temporaryPermissions;
static PermissionsMap s_permanentPermissions;
typedef WTF::Vector<GeolocationPermissions*> GeolocationPermissionsVector;
static GeolocationPermissionsVector s_instances;
WebCore::Timer<GeolocationPermissions> m_timer;
struct CallbackData {
WebCore::String origin;
bool allow;
};
CallbackData m_callbackData;
static bool s_alwaysDeny;
static bool s_permanentPermissionsLoaded;
static bool s_permanentPermissionsModified;
static WebCore::String s_databasePath;
};
} // namespace android
#endif
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