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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // TransportSecurityState maintains an in memory database containing the | 5 // TransportSecurityState maintains an in memory database containing the |
6 // list of hosts that currently have transport security enabled. This | 6 // list of hosts that currently have transport security enabled. This |
7 // singleton object deals with writing that data out to disk as needed and | 7 // singleton object deals with writing that data out to disk as needed and |
8 // loading it at startup. | 8 // loading it at startup. |
9 | 9 |
10 // At startup we need to load the transport security state from the | 10 // At startup we need to load the transport security state from the |
11 // disk. For the moment, we don't want to delay startup for this load, so we | 11 // disk. For the moment, we don't want to delay startup for this load, so we |
12 // let the TransportSecurityState run for a while without being loaded. | 12 // let the TransportSecurityState run for a while without being loaded. |
13 // This means that it's possible for pages opened very quickly not to get the | 13 // This means that it's possible for pages opened very quickly not to get the |
14 // correct transport security information. | 14 // correct transport security information. |
15 // | 15 // |
16 // To load the state, we schedule a Task on background_runner, which | 16 // To load the state, we schedule a Task on file_task_runner, which |
17 // deserializes and configures the TransportSecurityState. | 17 // deserializes and configures the TransportSecurityState. |
18 // | 18 // |
19 // The TransportSecurityState object supports running a callback function | 19 // The TransportSecurityState object supports running a callback function |
20 // when it changes. This object registers the callback, pointing at itself. | 20 // when it changes. This object registers the callback, pointing at itself. |
21 // | 21 // |
22 // TransportSecurityState calls... | 22 // TransportSecurityState calls... |
23 // TransportSecurityPersister::StateIsDirty | 23 // TransportSecurityPersister::StateIsDirty |
24 // since the callback isn't allowed to block or reenter, we schedule a Task | 24 // since the callback isn't allowed to block or reenter, we schedule a Task |
25 // on the file task runner after some small amount of time | 25 // on the file task runner after some small amount of time |
26 // | 26 // |
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44 | 44 |
45 namespace base { | 45 namespace base { |
46 class SequencedTaskRunner; | 46 class SequencedTaskRunner; |
47 } | 47 } |
48 | 48 |
49 namespace net { | 49 namespace net { |
50 | 50 |
51 // Reads and updates on-disk TransportSecurity state. Clients of this class | 51 // Reads and updates on-disk TransportSecurity state. Clients of this class |
52 // should create, destroy, and call into it from one thread. | 52 // should create, destroy, and call into it from one thread. |
53 // | 53 // |
54 // background_runner is the task runner this class should use internally to | 54 // file_task_runner is the task runner this class should use internally to |
55 // perform file IO, and can optionally be associated with a different thread. | 55 // perform file IO, and can optionally be associated with a different thread. |
56 class NET_EXPORT TransportSecurityPersister | 56 class NET_EXPORT TransportSecurityPersister |
57 : public TransportSecurityState::Delegate, | 57 : public TransportSecurityState::Delegate, |
58 public base::ImportantFileWriter::DataSerializer { | 58 public base::ImportantFileWriter::DataSerializer { |
59 public: | 59 public: |
60 TransportSecurityPersister( | 60 TransportSecurityPersister(TransportSecurityState* state, |
61 TransportSecurityState* state, | 61 const base::FilePath& profile_path, |
62 const base::FilePath& profile_path, | 62 base::SequencedTaskRunner* file_task_runner, |
63 const scoped_refptr<base::SequencedTaskRunner>& background_runner, | 63 bool readonly); |
64 bool readonly); | |
65 virtual ~TransportSecurityPersister(); | 64 virtual ~TransportSecurityPersister(); |
66 | 65 |
67 // Called by the TransportSecurityState when it changes its state. | 66 // Called by the TransportSecurityState when it changes its state. |
68 virtual void StateIsDirty(TransportSecurityState*) OVERRIDE; | 67 virtual void StateIsDirty(TransportSecurityState*) OVERRIDE; |
69 | 68 |
70 // ImportantFileWriter::DataSerializer: | 69 // ImportantFileWriter::DataSerializer: |
71 // | 70 // |
72 // Serializes |transport_security_state_| into |*output|. Returns true if | 71 // Serializes |transport_security_state_| into |*output|. Returns true if |
73 // all DomainStates were serialized correctly. | 72 // all DomainStates were serialized correctly. |
74 // | 73 // |
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130 const bool readonly_; | 129 const bool readonly_; |
131 | 130 |
132 base::WeakPtrFactory<TransportSecurityPersister> weak_ptr_factory_; | 131 base::WeakPtrFactory<TransportSecurityPersister> weak_ptr_factory_; |
133 | 132 |
134 DISALLOW_COPY_AND_ASSIGN(TransportSecurityPersister); | 133 DISALLOW_COPY_AND_ASSIGN(TransportSecurityPersister); |
135 }; | 134 }; |
136 | 135 |
137 } // namespace net | 136 } // namespace net |
138 | 137 |
139 #endif // NET_HTTP_TRANSPORT_SECURITY_PERSISTER_H_ | 138 #endif // NET_HTTP_TRANSPORT_SECURITY_PERSISTER_H_ |
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