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.h"
  14 #include "base/stringprintf.h"
  15 #include "base/stl_util.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   explicit SMSClientImpl(dbus::Bus* bus) : bus_(bus), weak_ptr_factory_(this) {}
  35   virtual ~SMSClientImpl() {}
  36
  37   // Calls GetAll method.  |callback| is called after the method call succeeds.
  38   virtual 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  private:
  53   // Handles responses of GetAll method calls.
  54   void OnGetAll(const GetAllCallback& callback, dbus::Response* response) {
  55     if (!response) {
  56       // Must invoke the callback, even if there is no message.
  57       base::DictionaryValue empty_dictionary;
  58       callback.Run(empty_dictionary);
  59       return;
  60     }
  61     dbus::MessageReader reader(response);
  62     scoped_ptr<base::Value> value(dbus::PopDataAsValue(&reader));
  63     base::DictionaryValue* dictionary_value = NULL;
  64     if (!value.get() || !value->GetAsDictionary(&dictionary_value)) {
  65       LOG(WARNING) << "Invalid response: " << response->ToString();
  66       base::DictionaryValue empty_dictionary;
  67       callback.Run(empty_dictionary);
  68       return;
  69     }
  70     callback.Run(*dictionary_value);
  71   }
  72
  73   dbus::Bus* bus_;
  74
  75   // Note: This should remain the last member so it'll be destroyed and
  76   // invalidate its weak pointers before any other members are destroyed.
  77   base::WeakPtrFactory<SMSClientImpl> weak_ptr_factory_;
  78
  79   DISALLOW_COPY_AND_ASSIGN(SMSClientImpl);
  80 };
  81
  82 class SMSClientStubImpl : public SMSClient {
  83  public:
  84   SMSClientStubImpl() : weak_ptr_factory_(this) {}
  85   virtual ~SMSClientStubImpl() {}
  86
  87   virtual void GetAll(const std::string& service_name,
  88                       const dbus::ObjectPath& object_path,
  89                       const GetAllCallback& callback) OVERRIDE {
  90     if (!CommandLine::ForCurrentProcess()->HasSwitch(
  91             chromeos::switches::kSmsTestMessages))
  92       return;
  93
  94     // Ownership passed to callback
  95     base::DictionaryValue *sms = new base::DictionaryValue();
  96     sms->SetString("Number", "000-000-0000");
  97     sms->SetString("Text",
  98                    "SMSClientStubImpl: Test Message: " + object_path.value());
  99     sms->SetString("Timestamp", "Fri Jun  8 13:26:04 EDT 2012");
 100
 101     // Run callback asynchronously.
 102     if (callback.is_null())
 103       return;
 104     MessageLoop::current()->PostTask(
 105         FROM_HERE,
 106         base::Bind(&SMSClientStubImpl::OnGetAll,
 107                    weak_ptr_factory_.GetWeakPtr(),
 108                    base::Owned(sms),
 109                    callback));
 110   }
 111
 112  private:
 113   void OnGetAll(base::DictionaryValue *sms,
 114                 const GetAllCallback& callback) {
 115     callback.Run(*sms);
 116   }
 117
 118   base::WeakPtrFactory<SMSClientStubImpl> weak_ptr_factory_;
 119
 120   DISALLOW_COPY_AND_ASSIGN(SMSClientStubImpl);
 121 };
 122
 123 }  // namespace
 124
 125 ////////////////////////////////////////////////////////////////////////////////
 126 // SMSClient
 127
 128 SMSClient::SMSClient() {}
 129
 130 SMSClient::~SMSClient() {}
 131
 132
 133 // static
 134 SMSClient* SMSClient::Create(DBusClientImplementationType type,
 135                              dbus::Bus* bus) {
 136   if (type == REAL_DBUS_CLIENT_IMPLEMENTATION) {
 137     return new SMSClientImpl(bus);
 138   }
 139   DCHECK_EQ(STUB_DBUS_CLIENT_IMPLEMENTATION, type);
 140   return new SMSClientStubImpl();
 141 }
 142
 143 }  // namespace chromeos