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toolkit/system/dbus/nsDBusService.cpp@129ffea94266 (annotated)

toolkit/system/dbus/nsDBusService.cpp

Sat, 03 Jan 2015 20:18:00 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Sat, 03 Jan 2015 20:18:00 +0100

branch

TOR_BUG_3246

changeset 7

129ffea94266

permissions

-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

michael@0	1	/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0	2	/* vim:expandtab:shiftwidth=4:tabstop=4:
michael@0	3	*/
michael@0	4	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	5	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	6	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	7
michael@0	8	#include "nsDBusService.h"
michael@0	9	#include "nsComponentManagerUtils.h"
michael@0	10	#include "nsAutoPtr.h"
michael@0	11
michael@0	12	#include <glib.h>
michael@0	13	#include <dbus/dbus-glib-lowlevel.h>
michael@0	14	#include <dbus/dbus-glib.h>
michael@0	15
michael@0	16	nsDBusService::nsDBusService() {
michael@0	17	mConnection = nullptr;
michael@0	18	mSingleClient = nullptr;
michael@0	19	}
michael@0	20
michael@0	21	nsDBusService::~nsDBusService() {
michael@0	22	NS_ASSERTION(!mSingleClient, "Client failed to unregister");
michael@0	23	DropConnection();
michael@0	24	if (mReconnectTimer) {
michael@0	25	mReconnectTimer->Cancel();
michael@0	26	}
michael@0	27	gSingleton = nullptr;
michael@0	28	}
michael@0	29
michael@0	30	NS_IMPL_ISUPPORTS(nsDBusService, nsDBusService)
michael@0	31
michael@0	32	nsDBusService* nsDBusService::gSingleton = nullptr;
michael@0	33
michael@0	34	already_AddRefed<nsDBusService>
michael@0	35	nsDBusService::Get() {
michael@0	36	if (!gSingleton) {
michael@0	37	gSingleton = new nsDBusService();
michael@0	38	}
michael@0	39	nsRefPtr<nsDBusService> ret = gSingleton;
michael@0	40	return ret.forget();
michael@0	41	}
michael@0	42
michael@0	43	nsresult
michael@0	44	nsDBusService::AddClient(DBusClient* client) {
michael@0	45	NS_ASSERTION(!mSingleClient, "Only one client supported right now");
michael@0	46	mSingleClient = client;
michael@0	47	nsresult rv = CreateConnection();
michael@0	48	if (NS_FAILED(rv)) {
michael@0	49	mSingleClient = nullptr;
michael@0	50	}
michael@0	51	return rv;
michael@0	52	}
michael@0	53
michael@0	54	void
michael@0	55	nsDBusService::RemoveClient(DBusClient* client) {
michael@0	56	NS_ASSERTION(mSingleClient == client, "Removing wrong client");
michael@0	57	mSingleClient = nullptr;
michael@0	58	}
michael@0	59
michael@0	60	DBusPendingCall*
michael@0	61	nsDBusService::SendWithReply(DBusClient* client, DBusMessage* message) {
michael@0	62	DBusPendingCall* reply = nullptr;
michael@0	63	if (mConnection) {
michael@0	64	if (!dbus_connection_send_with_reply(mConnection, message, &reply, -1)) {
michael@0	65	reply = nullptr;
michael@0	66	}
michael@0	67	}
michael@0	68	dbus_message_unref(message);
michael@0	69	return reply;
michael@0	70	}
michael@0	71
michael@0	72	bool nsDBusService::HandleMessage(DBusMessage* message) {
michael@0	73	if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL,
michael@0	74	"Disconnected")) {
michael@0	75	HandleDBusDisconnect();
michael@0	76	return false;
michael@0	77	}
michael@0	78
michael@0	79	return mSingleClient && mSingleClient->HandleMessage(message);
michael@0	80	}
michael@0	81
michael@0	82	static DBusHandlerResult dbus_filter(DBusConnection* connection,
michael@0	83	DBusMessage* message,
michael@0	84	void* user_data) {
michael@0	85	return static_cast<nsDBusService*>(user_data)->HandleMessage(message)
michael@0	86	? DBUS_HANDLER_RESULT_HANDLED : DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
michael@0	87	}
michael@0	88
michael@0	89	void nsDBusService::DoTimerCallback(nsITimer *aTimer) {
michael@0	90	if (aTimer == mReconnectTimer.get()) {
michael@0	91	nsresult rv = CreateConnection();
michael@0	92	if (NS_SUCCEEDED(rv)) {
michael@0	93	mReconnectTimer->Cancel();
michael@0	94	mReconnectTimer = nullptr;
michael@0	95	}
michael@0	96	}
michael@0	97	}
michael@0	98
michael@0	99	static void TimerCallback(nsITimer *aTimer, void *aClosure) {
michael@0	100	static_cast<nsDBusService*>(aClosure)->DoTimerCallback(aTimer);
michael@0	101	}
michael@0	102
michael@0	103	void nsDBusService::DropConnection() {
michael@0	104	if (mConnection) {
michael@0	105	dbus_connection_remove_filter(mConnection, dbus_filter, this);
michael@0	106	if (mSingleClient) {
michael@0	107	mSingleClient->UnregisterWithConnection(mConnection);
michael@0	108	}
michael@0	109	dbus_connection_unref(mConnection);
michael@0	110	mConnection = nullptr;
michael@0	111	}
michael@0	112	}
michael@0	113
michael@0	114	void nsDBusService::HandleDBusDisconnect() {
michael@0	115	DropConnection();
michael@0	116
michael@0	117	nsresult rv;
michael@0	118	mReconnectTimer = do_CreateInstance("@mozilla.org/timer;1", &rv);
michael@0	119	if (NS_FAILED(rv))
michael@0	120	return;
michael@0	121	rv = mReconnectTimer->InitWithFuncCallback(TimerCallback, this,
michael@0	122	5000, nsITimer::TYPE_REPEATING_SLACK);
michael@0	123	if (NS_FAILED(rv)) {
michael@0	124	mReconnectTimer = nullptr;
michael@0	125	return;
michael@0	126	}
michael@0	127	}
michael@0	128
michael@0	129	nsresult nsDBusService::CreateConnection() {
michael@0	130	mConnection = dbus_bus_get(DBUS_BUS_SYSTEM, nullptr);
michael@0	131	if (!mConnection)
michael@0	132	return NS_ERROR_FAILURE;
michael@0	133
michael@0	134	dbus_connection_set_exit_on_disconnect(mConnection, false);
michael@0	135	dbus_connection_setup_with_g_main(mConnection, nullptr);
michael@0	136
michael@0	137	if (!dbus_connection_add_filter(mConnection, dbus_filter, this, nullptr))
michael@0	138	return NS_ERROR_FAILURE;
michael@0	139
michael@0	140	mSingleClient->RegisterWithConnection(mConnection);
michael@0	141	return NS_OK;
michael@0	142	}