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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CHROME_BROWSER_CHROMEOS_EXTENSIONS_ZIP_FILE_CREATOR_H_ | |
6 #define CHROME_BROWSER_CHROMEOS_EXTENSIONS_ZIP_FILE_CREATOR_H_ | |
7 | |
8 #include <string> | |
9 | |
10 #include "base/file_path.h" | |
11 #include "base/memory/ref_counted.h" | |
12 #include "chrome/common/extensions/extension.h" | |
13 #include "content/public/browser/browser_thread.h" | |
14 #include "content/public/browser/utility_process_host_client.h" | |
15 | |
16 namespace extensions { | |
17 | |
18 // ZipFileCreator creates a ZIP file from a specified list of files and | |
19 // directories under a common parent directory. This is done in a sandboxed | |
20 // subprocess to protect the browser process from handling arbitrary input data | |
21 // from untrusted sources. | |
Jorge Lucangeli Obes
2012/11/13 21:03:35
How is the subprocess sandboxed? The utility proce
| |
22 // | |
23 // Lifetime management: | |
24 // | |
25 // This class is ref-counted by each call it makes to itself on another thread, | |
26 // and by UtilityProcessHost. | |
27 // | |
28 // Additionally, we hold a reference to our own client so that it lives at least | |
29 // long enough to receive the result of zip file creation. | |
30 class ZipFileCreator : public content::UtilityProcessHostClient { | |
31 public: | |
32 class Observer { | |
33 public: | |
34 virtual void OnZipDone(bool success) = 0; | |
35 | |
36 protected: | |
37 virtual ~Observer() {} | |
38 }; | |
39 | |
40 // Creates a zip file from the specified list of files and directories. | |
41 ZipFileCreator(Observer* observer, | |
42 const FilePath& src_dir, | |
43 const std::vector<FilePath>& src_relative_paths, | |
44 const FilePath& dest_file); | |
45 | |
46 // Start creating the zip file. The client is called with the results. | |
47 void Start(); | |
48 | |
49 private: | |
50 class ProcessHostClient; | |
51 friend class ProcessHostClient; | |
52 | |
53 virtual ~ZipFileCreator(); | |
54 | |
55 // Starts the utility process that creates the zip file. | |
56 void StartProcessOnIOThread(); | |
57 | |
58 // UtilityProcessHostClient | |
59 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; | |
60 virtual void OnProcessCrashed(int exit_code) OVERRIDE; | |
61 | |
62 // IPC message handlers. | |
63 void OnCreateZipFileSucceeded(); | |
64 void OnCreateZipFileFailed(); | |
65 | |
66 void ReportDone(bool success); | |
67 | |
68 // The observer's thread. This is the thread we respond on. | |
69 content::BrowserThread::ID thread_identifier_; | |
70 | |
71 // The observer. | |
72 Observer* observer_; | |
73 | |
74 // The source directory for input files. | |
75 FilePath src_dir_; | |
76 | |
77 // The list of source files paths to be included in the zip file. | |
78 // Entries are relative paths under directory |src_dir_|. | |
79 std::vector<FilePath> src_relative_paths_; | |
80 | |
81 // The output zip file. | |
82 FilePath dest_file_; | |
83 | |
84 // Whether we've received a response from the utility process yet. | |
85 bool got_response_; | |
86 }; | |
87 | |
88 } // namespace extensions | |
89 | |
90 #endif // CHROME_BROWSER_CHROMEOS_EXTENSIONS_ZIP_FILE_CREATOR_H_ | |
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