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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:expandtab:shiftwidth=2:tabstop=8:
*/
/* vim:set ts=8 sw=2 et cindent: */
/* 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
#include "nsDBusRemoteClient.h"
#include "RemoteUtils.h"
#include "nsAppRunner.h"
#include "mozilla/XREAppData.h"
#include "mozilla/Logging.h"
#include "mozilla/Base64.h"
#include "nsPrintfCString.h"
#include "mozilla/GUniquePtr.h"
#include <dlfcn.h>
#undef LOG
#ifdef MOZ_LOGGING
static mozilla::LazyLogModule sRemoteLm("nsDBusRemoteClient");
# define LOG(str, ...) \
MOZ_LOG(sRemoteLm, mozilla::LogLevel::Debug, (str, ##__VA_ARGS__))
#else
# define LOG(...)
#endif
using namespace mozilla;
nsDBusRemoteClient::nsDBusRemoteClient(nsACString& aStartupToken)
: mStartupToken(aStartupToken) {
LOG("nsDBusRemoteClient::nsDBusRemoteClient");
}
nsDBusRemoteClient::~nsDBusRemoteClient() {
LOG("nsDBusRemoteClient::~nsDBusRemoteClient");
}
nsresult nsDBusRemoteClient::SendCommandLine(const char* aProgram,
const char* aProfile, int32_t argc,
const char** argv, bool aRaise) {
// aRaise is unused on this platform.
NS_ENSURE_TRUE(aProfile, NS_ERROR_INVALID_ARG);
LOG("nsDBusRemoteClient::SendCommandLine");
int commandLineLength;
char* commandLine = ConstructCommandLine(
argc, argv,
mStartupToken.IsEmpty() ? nullptr
: PromiseFlatCString(mStartupToken).get(),
&commandLineLength);
if (!commandLine) {
LOG(" failed to create command line");
return NS_ERROR_FAILURE;
}
nsresult rv = DoSendDBusCommandLine(aProfile, commandLine, commandLineLength);
free(commandLine);
LOG("DoSendDBusCommandLine %s", NS_SUCCEEDED(rv) ? "OK" : "FAILED");
return rv;
}
bool nsDBusRemoteClient::GetRemoteDestinationName(const char* aProgram,
const char* aProfile,
nsCString& aDestinationName) {
// We have a profile name - just create the destination.
// D-Bus names can contain only [a-z][A-Z][0-9]_
// characters so adjust the profile string properly.
nsAutoCString profileName;
nsresult rv = mozilla::Base64Encode(nsAutoCString(aProfile), profileName);
NS_ENSURE_SUCCESS(rv, false);
mozilla::XREAppData::SanitizeNameForDBus(profileName);
aDestinationName =
nsPrintfCString("org.mozilla.%s.%s", aProgram, profileName.get());
if (aDestinationName.Length() > DBUS_MAXIMUM_NAME_LENGTH)
aDestinationName.Truncate(DBUS_MAXIMUM_NAME_LENGTH);
static auto sDBusValidateBusName = (bool (*)(const char*, DBusError*))dlsym(
RTLD_DEFAULT, "dbus_validate_bus_name");
if (!sDBusValidateBusName) {
LOG(" failed to get dbus_validate_bus_name()");
return false;
}
if (!sDBusValidateBusName(aDestinationName.get(), nullptr)) {
// We don't have a valid busName yet - try to create a default one.
aDestinationName =
nsPrintfCString("org.mozilla.%s.%s", aProgram, "default");
if (!sDBusValidateBusName(aDestinationName.get(), nullptr)) {
// We failed completelly to get a valid bus name - just quit
// to prevent crash at dbus_bus_request_name().
LOG(" failed to validate profile DBus name");
return false;
}
}
return true;
}
nsresult nsDBusRemoteClient::DoSendDBusCommandLine(const char* aProfile,
const char* aBuffer,
int aLength) {
LOG("nsDBusRemoteClient::DoSendDBusCommandLine()");
if (!gAppData) {
return NS_ERROR_FAILURE;
}
nsAutoCString appName;
gAppData->GetDBusAppName(appName);
nsAutoCString destinationName;
if (!GetRemoteDestinationName(appName.get(), aProfile, destinationName)) {
LOG(" failed to get remote destination name");
return NS_ERROR_FAILURE;
}
nsAutoCString pathName;
pathName = nsPrintfCString("/org/mozilla/%s/Remote", appName.get());
static auto sDBusValidatePathName = (bool (*)(const char*, DBusError*))dlsym(
RTLD_DEFAULT, "dbus_validate_path");
if (!sDBusValidatePathName ||
!sDBusValidatePathName(pathName.get(), nullptr)) {
LOG(" failed to validate path name");
return NS_ERROR_FAILURE;
}
nsAutoCString remoteInterfaceName;
remoteInterfaceName = nsPrintfCString("org.mozilla.%s", appName.get());
LOG(" DBus destination: %s\n", destinationName.get());
LOG(" DBus path: %s\n", pathName.get());
LOG(" DBus interface: %s\n", remoteInterfaceName.get());
RefPtr<GDBusProxy> proxy = dont_AddRef(g_dbus_proxy_new_for_bus_sync(
G_BUS_TYPE_SESSION, G_DBUS_PROXY_FLAGS_NONE, nullptr,
destinationName.get(), pathName.get(), remoteInterfaceName.get(), nullptr,
nullptr));
if (!proxy) {
LOG(" failed to create DBus proxy");
return NS_ERROR_FAILURE;
}
GUniquePtr<GError> error;
RefPtr<GVariant> reply = dont_AddRef(g_dbus_proxy_call_sync(
proxy, "OpenURL",
g_variant_new_from_data(G_VARIANT_TYPE("(ay)"), aBuffer, aLength, true,
nullptr, nullptr),
G_DBUS_CALL_FLAGS_NONE, -1, nullptr, getter_Transfers(error)));
#ifdef MOZ_LOGGING
if (!reply) {
LOG(" failed to OpenURL: %s", error->message);
}
#endif
return reply ? NS_OK : NS_ERROR_NOT_AVAILABLE;
}