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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 CHROME_BROWSER_COMPONENT_UPDATER_COMPONENT_PATCHER_H_ | 27 #ifndef COMPONENTS_COMPONENT_UPDATER_COMPONENT_PATCHER_H_ |
28 #define CHROME_BROWSER_COMPONENT_UPDATER_COMPONENT_PATCHER_H_ | 28 #define COMPONENTS_COMPONENT_UPDATER_COMPONENT_PATCHER_H_ |
29 | 29 |
30 #include "base/callback_forward.h" | 30 #include "base/callback_forward.h" |
31 #include "base/memory/ref_counted.h" | 31 #include "base/memory/ref_counted.h" |
32 #include "base/memory/scoped_ptr.h" | 32 #include "base/memory/scoped_ptr.h" |
33 #include "base/values.h" | 33 #include "base/values.h" |
34 #include "chrome/browser/component_updater/component_unpacker.h" | 34 #include "components/component_updater/component_unpacker.h" |
35 | 35 |
36 namespace base { | 36 namespace base { |
37 class FilePath; | 37 class FilePath; |
38 } | 38 } |
39 | 39 |
40 namespace component_updater { | 40 namespace component_updater { |
41 | 41 |
42 class ComponentInstaller; | 42 class ComponentInstaller; |
43 class DeltaUpdateOp; | 43 class DeltaUpdateOp; |
44 class OutOfProcessPatcher; | 44 class OutOfProcessPatcher; |
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91 scoped_ptr<base::ListValue> commands_; | 91 scoped_ptr<base::ListValue> commands_; |
92 base::ValueVector::const_iterator next_command_; | 92 base::ValueVector::const_iterator next_command_; |
93 scoped_refptr<DeltaUpdateOp> current_operation_; | 93 scoped_refptr<DeltaUpdateOp> current_operation_; |
94 scoped_refptr<base::SequencedTaskRunner> task_runner_; | 94 scoped_refptr<base::SequencedTaskRunner> task_runner_; |
95 | 95 |
96 DISALLOW_COPY_AND_ASSIGN(ComponentPatcher); | 96 DISALLOW_COPY_AND_ASSIGN(ComponentPatcher); |
97 }; | 97 }; |
98 | 98 |
99 } // namespace component_updater | 99 } // namespace component_updater |
100 | 100 |
101 #endif // CHROME_BROWSER_COMPONENT_UPDATER_COMPONENT_PATCHER_H_ | 101 #endif // COMPONENTS_COMPONENT_UPDATER_COMPONENT_PATCHER_H_ |
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