chromeos/dbus/sms_client.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4 #include "chromeos/dbus/sms_client.h"
   5
   6 #include <map>
   7 #include <utility>
   8
   9 #include "base/bind.h"
  10 #include "base/location.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "base/message_loop/message_loop.h"
  14 #include "base/stl_util.h"
  15 #include "base/strings/stringprintf.h"
  16 #include "base/values.h"
  17 #include "dbus/bus.h"
  18 #include "dbus/message.h"
  19 #include "dbus/object_proxy.h"
  20 #include "dbus/values_util.h"
  21 #include "third_party/cros_system_api/dbus/service_constants.h"
  22
  23 namespace chromeos {
  24
  25 namespace {
  26
  27 // SMSClient is used to communicate with the
  28 // org.freedesktop.ModemManager1.SMS service.  All methods should be
  29 // called from the origin thread (UI thread) which initializes the
  30 // DBusThreadManager instance.
  31 class SMSClientImpl : public SMSClient {
  32  public:
  33   SMSClientImpl() : bus_(NULL), weak_ptr_factory_(this) {}
  34
  35   ~SMSClientImpl() override {}
  36
  37   // Calls GetAll method.  |callback| is called after the method call succeeds.
  38   void GetAll(const std::string& service_name,
  39               const dbus::ObjectPath& object_path,
  40               const GetAllCallback& callback) override {
  41     dbus::ObjectProxy *proxy = bus_->GetObjectProxy(service_name, object_path);
  42     dbus::MethodCall method_call(dbus::kDBusPropertiesInterface,
  43                                  dbus::kDBusPropertiesGetAll);
  44     dbus::MessageWriter writer(&method_call);
  45     writer.AppendString(modemmanager::kModemManager1SmsInterface);
  46     proxy->CallMethod(&method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
  47                        base::Bind(&SMSClientImpl::OnGetAll,
  48                                   weak_ptr_factory_.GetWeakPtr(),
  49                                   callback));
  50   }
  51
  52  protected:
  53   void Init(dbus::Bus* bus) override { bus_ = bus; }
  54
  55  private:
  56   // Handles responses of GetAll method calls.
  57   void OnGetAll(const GetAllCallback& callback, dbus::Response* response) {
  58     if (!response) {
  59       // Must invoke the callback, even if there is no message.
  60       base::DictionaryValue empty_dictionary;
  61       callback.Run(empty_dictionary);
  62       return;
  63     }
  64     dbus::MessageReader reader(response);
  65     scoped_ptr<base::Value> value(dbus::PopDataAsValue(&reader));
  66     base::DictionaryValue* dictionary_value = NULL;
  67     if (!value.get() || !value->GetAsDictionary(&dictionary_value)) {
  68       LOG(WARNING) << "Invalid response: " << response->ToString();
  69       base::DictionaryValue empty_dictionary;
  70       callback.Run(empty_dictionary);
  71       return;
  72     }
  73     callback.Run(*dictionary_value);
  74   }
  75
  76   dbus::Bus* bus_;
  77
  78   // Note: This should remain the last member so it'll be destroyed and
  79   // invalidate its weak pointers before any other members are destroyed.
  80   base::WeakPtrFactory<SMSClientImpl> weak_ptr_factory_;
  81
  82   DISALLOW_COPY_AND_ASSIGN(SMSClientImpl);
  83 };
  84
  85 }  // namespace
  86
  87 ////////////////////////////////////////////////////////////////////////////////
  88 // SMSClient
  89
  90 SMSClient::SMSClient() {}
  91
  92 SMSClient::~SMSClient() {}
  93
  94
  95 // static
  96 SMSClient* SMSClient::Create() {
  97   return new SMSClientImpl();
  98 }
  99
 100 }  // namespace chromeos