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      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   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  protected:
     53   virtual void Init(dbus::Bus* bus) OVERRIDE {
     54     bus_ = bus;
     55   }
     56 
     57  private:
     58   // Handles responses of GetAll method calls.
     59   void OnGetAll(const GetAllCallback& callback, dbus::Response* response) {
     60     if (!response) {
     61       // Must invoke the callback, even if there is no message.
     62       base::DictionaryValue empty_dictionary;
     63       callback.Run(empty_dictionary);
     64       return;
     65     }
     66     dbus::MessageReader reader(response);
     67     scoped_ptr<base::Value> value(dbus::PopDataAsValue(&reader));
     68     base::DictionaryValue* dictionary_value = NULL;
     69     if (!value.get() || !value->GetAsDictionary(&dictionary_value)) {
     70       LOG(WARNING) << "Invalid response: " << response->ToString();
     71       base::DictionaryValue empty_dictionary;
     72       callback.Run(empty_dictionary);
     73       return;
     74     }
     75     callback.Run(*dictionary_value);
     76   }
     77 
     78   dbus::Bus* bus_;
     79 
     80   // Note: This should remain the last member so it'll be destroyed and
     81   // invalidate its weak pointers before any other members are destroyed.
     82   base::WeakPtrFactory<SMSClientImpl> weak_ptr_factory_;
     83 
     84   DISALLOW_COPY_AND_ASSIGN(SMSClientImpl);
     85 };
     86 
     87 }  // namespace
     88 
     89 ////////////////////////////////////////////////////////////////////////////////
     90 // SMSClient
     91 
     92 SMSClient::SMSClient() {}
     93 
     94 SMSClient::~SMSClient() {}
     95 
     96 
     97 // static
     98 SMSClient* SMSClient::Create() {
     99   return new SMSClientImpl();
    100 }
    101 
    102 }  // namespace chromeos
    103