src/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/command_line.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 "chromeos/chromeos_switches.h"
  18 #include "dbus/bus.h"
  19 #include "dbus/message.h"
  20 #include "dbus/object_proxy.h"
  21 #include "dbus/values_util.h"
  22 #include "third_party/cros_system_api/dbus/service_constants.h"
  23
  24 namespace chromeos {
  25
  26 namespace {
  27
  28 // SMSClient is used to communicate with the
  29 // org.freedesktop.ModemManager1.SMS service.  All methods should be
  30 // called from the origin thread (UI thread) which initializes the
  31 // DBusThreadManager instance.
  32 class SMSClientImpl : public SMSClient {
  33  public:
  34   SMSClientImpl() : bus_(NULL), weak_ptr_factory_(this) {}
  35
  36   virtual ~SMSClientImpl() {}
  37
  38   // Calls GetAll method.  |callback| is called after the method call succeeds.
  39   virtual void GetAll(const std::string& service_name,
  40                       const dbus::ObjectPath& object_path,
  41                       const GetAllCallback& callback) OVERRIDE {
  42     dbus::ObjectProxy *proxy = bus_->GetObjectProxy(service_name, object_path);
  43     dbus::MethodCall method_call(dbus::kDBusPropertiesInterface,
  44                                  dbus::kDBusPropertiesGetAll);
  45     dbus::MessageWriter writer(&method_call);
  46     writer.AppendString(modemmanager::kModemManager1SmsInterface);
  47     proxy->CallMethod(&method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
  48                        base::Bind(&SMSClientImpl::OnGetAll,
  49                                   weak_ptr_factory_.GetWeakPtr(),
  50                                   callback));
  51   }
  52
  53  protected:
  54   virtual void Init(dbus::Bus* bus) OVERRIDE {
  55     bus_ = bus;
  56   }
  57
  58  private:
  59   // Handles responses of GetAll method calls.
  60   void OnGetAll(const GetAllCallback& callback, dbus::Response* response) {
  61     if (!response) {
  62       // Must invoke the callback, even if there is no message.
  63       base::DictionaryValue empty_dictionary;
  64       callback.Run(empty_dictionary);
  65       return;
  66     }
  67     dbus::MessageReader reader(response);
  68     scoped_ptr<base::Value> value(dbus::PopDataAsValue(&reader));
  69     base::DictionaryValue* dictionary_value = NULL;
  70     if (!value.get() || !value->GetAsDictionary(&dictionary_value)) {
  71       LOG(WARNING) << "Invalid response: " << response->ToString();
  72       base::DictionaryValue empty_dictionary;
  73       callback.Run(empty_dictionary);
  74       return;
  75     }
  76     callback.Run(*dictionary_value);
  77   }
  78
  79   dbus::Bus* bus_;
  80
  81   // Note: This should remain the last member so it'll be destroyed and
  82   // invalidate its weak pointers before any other members are destroyed.
  83   base::WeakPtrFactory<SMSClientImpl> weak_ptr_factory_;
  84
  85   DISALLOW_COPY_AND_ASSIGN(SMSClientImpl);
  86 };
  87
  88 class SMSClientStubImpl : public SMSClient {
  89  public:
  90   SMSClientStubImpl() : weak_ptr_factory_(this) {}
  91   virtual ~SMSClientStubImpl() {}
  92
  93   virtual void Init(dbus::Bus* bus) OVERRIDE {}
  94
  95   virtual void GetAll(const std::string& service_name,
  96                       const dbus::ObjectPath& object_path,
  97                       const GetAllCallback& callback) OVERRIDE {
  98     if (!CommandLine::ForCurrentProcess()->HasSwitch(
  99             chromeos::switches::kSmsTestMessages))
 100       return;
 101
 102     // Ownership passed to callback
 103     base::DictionaryValue *sms = new base::DictionaryValue();
 104     sms->SetString("Number", "000-000-0000");
 105     sms->SetString("Text",
 106                    "SMSClientStubImpl: Test Message: " + object_path.value());
 107     sms->SetString("Timestamp", "Fri Jun  8 13:26:04 EDT 2012");
 108
 109     // Run callback asynchronously.
 110     if (callback.is_null())
 111       return;
 112     base::MessageLoop::current()->PostTask(
 113         FROM_HERE,
 114         base::Bind(&SMSClientStubImpl::OnGetAll,
 115                    weak_ptr_factory_.GetWeakPtr(),
 116                    base::Owned(sms),
 117                    callback));
 118   }
 119
 120  private:
 121   void OnGetAll(base::DictionaryValue *sms,
 122                 const GetAllCallback& callback) {
 123     callback.Run(*sms);
 124   }
 125
 126   base::WeakPtrFactory<SMSClientStubImpl> weak_ptr_factory_;
 127
 128   DISALLOW_COPY_AND_ASSIGN(SMSClientStubImpl);
 129 };
 130
 131 }  // namespace
 132
 133 ////////////////////////////////////////////////////////////////////////////////
 134 // SMSClient
 135
 136 SMSClient::SMSClient() {}
 137
 138 SMSClient::~SMSClient() {}
 139
 140
 141 // static
 142 SMSClient* SMSClient::Create(DBusClientImplementationType type) {
 143   if (type == REAL_DBUS_CLIENT_IMPLEMENTATION) {
 144     return new SMSClientImpl();
 145   }
 146   DCHECK_EQ(STUB_DBUS_CLIENT_IMPLEMENTATION, type);
 147   return new SMSClientStubImpl();
 148 }
 149
 150 }  // namespace chromeos