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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 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 // Component updates can be either differential updates or full updates. | 5 // Component updates can be either differential updates or full updates. |
6 // Full updates come in CRX format; differential updates come in CRX-style | 6 // Full updates come in CRX format; differential updates come in CRX-style |
7 // archives, but have a different magic number. They contain "commands.json", a | 7 // archives, but have a different magic number. They contain "commands.json", a |
8 // list of commands for the patcher to follow. The patcher uses these commands, | 8 // list of commands for the patcher to follow. The patcher uses these commands, |
9 // the other files in the archive, and the files from the existing installation | 9 // the other files in the archive, and the files from the existing installation |
10 // of the component to create the contents of a full update, which is then | 10 // of the component to create the contents of a full update, which is then |
11 // installed normally. | 11 // installed normally. |
12 // Component updates are specified by the 'codebasediff' attribute of an | 12 // Component updates are specified by the 'codebasediff' attribute of an |
13 // updatecheck response: | 13 // updatecheck response: |
14 // <updatecheck codebase="http://example.com/extension_1.2.3.4.crx" | 14 // <updatecheck codebase="http://example.com/extension_1.2.3.4.crx" |
15 // hash="12345" size="9854" status="ok" version="1.2.3.4" | 15 // hash="12345" size="9854" status="ok" version="1.2.3.4" |
16 // prodversionmin="2.0.143.0" | 16 // prodversionmin="2.0.143.0" |
17 // codebasediff="http://example.com/diff_1.2.3.4.crx" | 17 // codebasediff="http://example.com/diff_1.2.3.4.crx" |
18 // hashdiff="123" sizediff="101" | 18 // hashdiff="123" sizediff="101" |
19 // fp="1.123" /> | 19 // fp="1.123" /> |
20 // The component updater will attempt a differential update if it is available | 20 // The component updater will attempt a differential update if it is available |
21 // and allowed to, and fall back to a full update if it fails. | 21 // and allowed to, and fall back to a full update if it fails. |
22 // | 22 // |
23 // After installation (diff or full), the component updater records "fp", the | 23 // After installation (diff or full), the component updater records "fp", the |
24 // fingerprint of the installed files, to later identify the existing files to | 24 // fingerprint of the installed files, to later identify the existing files to |
25 // the server so that a proper differential update can be provided next cycle. | 25 // the server so that a proper differential update can be provided next cycle. |
26 | 26 |
27 #ifndef COMPONENTS_COMPONENT_UPDATER_COMPONENT_PATCHER_H_ | 27 #ifndef COMPONENTS_UPDATE_CLIENT_COMPONENT_PATCHER_H_ |
28 #define COMPONENTS_COMPONENT_UPDATER_COMPONENT_PATCHER_H_ | 28 #define COMPONENTS_UPDATE_CLIENT_COMPONENT_PATCHER_H_ |
29 | 29 |
30 #include "base/callback_forward.h" | 30 #include "base/callback_forward.h" |
31 #include "base/macros.h" | 31 #include "base/macros.h" |
32 #include "base/memory/ref_counted.h" | 32 #include "base/memory/ref_counted.h" |
33 #include "base/memory/scoped_ptr.h" | 33 #include "base/memory/scoped_ptr.h" |
34 #include "base/values.h" | 34 #include "base/values.h" |
35 #include "components/component_updater/component_unpacker.h" | 35 #include "components/update_client/component_unpacker.h" |
36 | 36 |
37 namespace base { | 37 namespace base { |
38 class FilePath; | 38 class FilePath; |
39 } | 39 } |
40 | 40 |
41 namespace component_updater { | 41 namespace update_client { |
42 | 42 |
43 class ComponentInstaller; | 43 class ComponentInstaller; |
44 class DeltaUpdateOp; | 44 class DeltaUpdateOp; |
45 class OutOfProcessPatcher; | 45 class OutOfProcessPatcher; |
46 | 46 |
47 // The type of a patch file. | 47 // The type of a patch file. |
48 enum PatchType { | 48 enum PatchType { |
49 kPatchTypeUnknown, | 49 kPatchTypeUnknown, |
50 kPatchTypeCourgette, | 50 kPatchTypeCourgette, |
51 kPatchTypeBsdiff, | 51 kPatchTypeBsdiff, |
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90 scoped_refptr<OutOfProcessPatcher> out_of_process_patcher_; | 90 scoped_refptr<OutOfProcessPatcher> out_of_process_patcher_; |
91 ComponentUnpacker::Callback callback_; | 91 ComponentUnpacker::Callback callback_; |
92 scoped_ptr<base::ListValue> commands_; | 92 scoped_ptr<base::ListValue> commands_; |
93 base::ValueVector::const_iterator next_command_; | 93 base::ValueVector::const_iterator next_command_; |
94 scoped_refptr<DeltaUpdateOp> current_operation_; | 94 scoped_refptr<DeltaUpdateOp> current_operation_; |
95 scoped_refptr<base::SequencedTaskRunner> task_runner_; | 95 scoped_refptr<base::SequencedTaskRunner> task_runner_; |
96 | 96 |
97 DISALLOW_COPY_AND_ASSIGN(ComponentPatcher); | 97 DISALLOW_COPY_AND_ASSIGN(ComponentPatcher); |
98 }; | 98 }; |
99 | 99 |
100 } // namespace component_updater | 100 } // namespace update_client |
101 | 101 |
102 #endif // COMPONENTS_COMPONENT_UPDATER_COMPONENT_PATCHER_H_ | 102 #endif // COMPONENTS_UPDATE_CLIENT_COMPONENT_PATCHER_H_ |
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