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1 // Copyright 2014 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 #ifndef SYNC_TEST_FAKE_SERVER_FAKE_SERVER_H_
6 #define SYNC_TEST_FAKE_SERVER_FAKE_SERVER_H_
7 
8 #include <map>
9 #include <string>
10 #include <vector>
11 
12 #include "base/basictypes.h"
13 #include "base/callback.h"
14 #include "base/memory/scoped_ptr.h"
15 #include "base/observer_list.h"
16 #include "base/values.h"
17 #include "sync/internal_api/public/base/model_type.h"
18 #include "sync/protocol/sync.pb.h"
19 #include "sync/test/fake_server/fake_server_entity.h"
20 
21 namespace fake_server {
22 
23 // A fake version of the Sync server used for testing.
24 class FakeServer {
25  public:
26   typedef base::Callback<void(int, int, const std::string&)>
27       HandleCommandCallback;
28 
29   class Observer {
30    public:
~Observer()31     virtual ~Observer() {}
32 
33     // Called after FakeServer has processed a successful commit. The types
34     // updated as part of the commit are passed in |committed_model_types|.
35     virtual void OnCommit(
36         const std::string& committer_id,
37         syncer::ModelTypeSet committed_model_types) = 0;
38   };
39 
40   FakeServer();
41   virtual ~FakeServer();
42 
43   // Asynchronously handles a /command POST to the server. If the error_code is
44   // passed to |callback| is 0 (success), the POST's response code and content
45   // will also be passed.
46   void HandleCommand(const std::string& request,
47                      const HandleCommandCallback& callback);
48 
49   // Creates a DicionaryValue representation of all entities present in the
50   // server. The dictionary keys are the strings generated by ModelTypeToString
51   // and the values are ListValues containing StringValue versions of entity
52   // names.
53   scoped_ptr<base::DictionaryValue> GetEntitiesAsDictionaryValue();
54 
55   // Adds the FakeServerEntity* owned by |entity| to the server's collection
56   // of entities. This method makes no guarantees that the added entity will
57   // result in successful server operations.
58   void InjectEntity(scoped_ptr<FakeServerEntity> entity);
59 
60   // Sets a new store birthday so that tests may trigger a NOT_MY_BIRTHDAY
61   // error. If |store_birthday| is the same as |store_birthday_|, false is
62   // returned and this method has no effect.
63   bool SetNewStoreBirthday(const std::string& store_birthday);
64 
65   // Puts the server in a state where it acts as if authentication has
66   // succeeded.
67   void SetAuthenticated();
68 
69   // Puts the server in a state where all commands will fail with an
70   // authentication error.
71   void SetUnauthenticated();
72 
73   // Return |error_type| on next sync request.
74   void TriggerError(const sync_pb::SyncEnums::ErrorType& error_type);
75 
76   // Adds |observer| to FakeServer's observer list. This should be called
77   // before the Profile associated with |observer| is connected to the server.
78   void AddObserver(Observer* observer);
79 
80   // Removes |observer| from the FakeServer's observer list. This method
81   // must be called if AddObserver was ever called with |observer|.
82   void RemoveObserver(Observer* observer);
83 
84  private:
85   typedef std::map<std::string, FakeServerEntity*> EntityMap;
86 
87   // Processes a GetUpdates call.
88   bool HandleGetUpdatesRequest(const sync_pb::GetUpdatesMessage& get_updates,
89                                sync_pb::GetUpdatesResponse* response);
90 
91   // Processes a Commit call.
92   bool HandleCommitRequest(const sync_pb::CommitMessage& message,
93                            const std::string& invalidator_client_id,
94                            sync_pb::CommitResponse* response);
95 
96   // Inserts the default permanent items in |entities_|.
97   bool CreateDefaultPermanentItems();
98 
99   // Inserts the mobile bookmarks folder entity in |entities_|.
100   bool CreateMobileBookmarksPermanentItem();
101 
102   // Saves a |entity| to |entities_|.
103   void SaveEntity(FakeServerEntity* entity);
104 
105   // Commits a client-side SyncEntity to the server as a FakeServerEntity.
106   // The client that sent the commit is identified via |client_guid|. The
107   // parent ID string present in |client_entity| should be ignored in favor
108   // of |parent_id|. If the commit is successful, the entity's server ID string
109   // is returned and a new FakeServerEntity is saved in |entities_|.
110   std::string CommitEntity(
111       const sync_pb::SyncEntity& client_entity,
112       sync_pb::CommitResponse_EntryResponse* entry_response,
113       std::string client_guid,
114       std::string parent_id);
115 
116   // Populates |entry_response| based on |entity|. It is assumed that
117   // SaveEntity has already been called on |entity|.
118   void BuildEntryResponseForSuccessfulCommit(
119       sync_pb::CommitResponse_EntryResponse* entry_response,
120       FakeServerEntity* entity);
121 
122   // Determines whether the SyncEntity with id_string |id| is a child of an
123   // entity with id_string |potential_parent_id|.
124   bool IsChild(const std::string& id, const std::string& potential_parent_id);
125 
126   // Creates and saves tombstones for all children of the entity with the given
127   // |id|. A tombstone is not created for the entity itself.
128   bool DeleteChildren(const std::string& id);
129 
130   // This is the last version number assigned to an entity. The next entity will
131   // have a version number of version_ + 1.
132   int64 version_;
133 
134   // The current store birthday value.
135   std::string store_birthday_;
136 
137   // Whether the server should act as if incoming connections are properly
138   // authenticated.
139   bool authenticated_;
140 
141   // All SyncEntity objects saved by the server. The key value is the entity's
142   // id string.
143   EntityMap entities_;
144 
145   // All Keystore keys known to the server.
146   std::vector<std::string> keystore_keys_;
147 
148   sync_pb::SyncEnums::ErrorType error_type_;
149 
150   // FakeServer's observers.
151   ObserverList<Observer, true> observers_;
152 };
153 
154 }  // namespace fake_server
155 
156 #endif  // SYNC_TEST_FAKE_SERVER_FAKE_SERVER_H_
157