1 // Copyright (c) 2011 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
5 #include "chrome/browser/sync/engine/download_updates_command.h"
6
7 #include <string>
8
9 #include "chrome/browser/sync/engine/syncer.h"
10 #include "chrome/browser/sync/engine/syncer_proto_util.h"
11 #include "chrome/browser/sync/engine/syncproto.h"
12 #include "chrome/browser/sync/syncable/directory_manager.h"
13 #include "chrome/browser/sync/syncable/model_type_payload_map.h"
14
15 using syncable::ScopedDirLookup;
16
17 namespace browser_sync {
18 using sessions::StatusController;
19 using sessions::SyncSession;
20 using std::string;
21 using syncable::FIRST_REAL_MODEL_TYPE;
22 using syncable::MODEL_TYPE_COUNT;
23
DownloadUpdatesCommand()24 DownloadUpdatesCommand::DownloadUpdatesCommand() {}
~DownloadUpdatesCommand()25 DownloadUpdatesCommand::~DownloadUpdatesCommand() {}
26
ExecuteImpl(SyncSession * session)27 void DownloadUpdatesCommand::ExecuteImpl(SyncSession* session) {
28 ClientToServerMessage client_to_server_message;
29 ClientToServerResponse update_response;
30
31 client_to_server_message.set_share(session->context()->account_name());
32 client_to_server_message.set_message_contents(
33 ClientToServerMessage::GET_UPDATES);
34 GetUpdatesMessage* get_updates =
35 client_to_server_message.mutable_get_updates();
36
37 ScopedDirLookup dir(session->context()->directory_manager(),
38 session->context()->account_name());
39 if (!dir.good()) {
40 LOG(ERROR) << "Scoped dir lookup failed!";
41 return;
42 }
43
44 // Request updates for all enabled types.
45 syncable::ModelTypeBitSet enabled_types;
46 const syncable::ModelTypePayloadMap& type_payload_map =
47 session->source().types;
48 for (ModelSafeRoutingInfo::const_iterator i = session->routing_info().begin();
49 i != session->routing_info().end(); ++i) {
50 syncable::ModelType model_type = syncable::ModelTypeFromInt(i->first);
51 enabled_types[i->first] = true;
52 sync_pb::DataTypeProgressMarker* progress_marker =
53 get_updates->add_from_progress_marker();
54 dir->GetDownloadProgress(model_type, progress_marker);
55
56 // Set notification hint if present.
57 syncable::ModelTypePayloadMap::const_iterator type_payload =
58 type_payload_map.find(i->first);
59 if (type_payload != type_payload_map.end()) {
60 progress_marker->set_notification_hint(type_payload->second);
61 }
62 }
63
64 VLOG(1) << "Getting updates for types " << enabled_types.to_string();
65 DCHECK(enabled_types.any());
66
67 // We want folders for our associated types, always. If we were to set
68 // this to false, the server would send just the non-container items
69 // (e.g. Bookmark URLs but not their containing folders).
70 get_updates->set_fetch_folders(true);
71
72 // Set GetUpdatesMessage.GetUpdatesCallerInfo information.
73 get_updates->mutable_caller_info()->set_source(
74 session->TestAndSetSource().updates_source);
75 get_updates->mutable_caller_info()->set_notifications_enabled(
76 session->context()->notifications_enabled());
77
78 SyncerProtoUtil::AddRequestBirthday(dir, &client_to_server_message);
79
80 bool ok = SyncerProtoUtil::PostClientToServerMessage(
81 client_to_server_message,
82 &update_response,
83 session);
84
85 VLOG(2) << SyncerProtoUtil::ClientToServerResponseDebugString(
86 update_response);
87
88 StatusController* status = session->status_controller();
89 status->set_updates_request_types(enabled_types);
90 if (!ok) {
91 status->increment_num_consecutive_errors();
92 status->mutable_updates_response()->Clear();
93 LOG(ERROR) << "PostClientToServerMessage() failed during GetUpdates";
94 return;
95 }
96
97 status->mutable_updates_response()->CopyFrom(update_response);
98
99 VLOG(1) << "GetUpdates "
100 << " returned " << update_response.get_updates().entries_size()
101 << " updates and indicated "
102 << update_response.get_updates().changes_remaining()
103 << " updates left on server.";
104 }
105
SetRequestedTypes(const syncable::ModelTypeBitSet & target_datatypes,sync_pb::EntitySpecifics * filter_protobuf)106 void DownloadUpdatesCommand::SetRequestedTypes(
107 const syncable::ModelTypeBitSet& target_datatypes,
108 sync_pb::EntitySpecifics* filter_protobuf) {
109 // The datatypes which should be synced are dictated by the value of the
110 // ModelSafeRoutingInfo. If a datatype is in the routing info map, it
111 // should be synced (even if it's GROUP_PASSIVE).
112 int requested_type_count = 0;
113 for (int i = FIRST_REAL_MODEL_TYPE; i < MODEL_TYPE_COUNT; ++i) {
114 if (target_datatypes[i]) {
115 requested_type_count++;
116 syncable::AddDefaultExtensionValue(syncable::ModelTypeFromInt(i),
117 filter_protobuf);
118 }
119 }
120 DCHECK_LT(0, requested_type_count) << "Doing GetUpdates with empty filter.";
121 }
122
123 } // namespace browser_sync
124