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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_EXTENSIONS_ZIP_FILE_CREATOR_H_ |
| 6 #define CHROME_BROWSER_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. |
| 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 // |
| 31 // |
| 32 // NOTE: This class should only be used on the file thread. |
| 33 class ZipFileCreator : public content::UtilityProcessHostClient { |
| 34 public: |
| 35 class Delegate { |
| 36 public: |
| 37 virtual void OnZipSuccess() = 0; |
| 38 virtual void OnZipFailure() = 0; |
| 39 |
| 40 protected: |
| 41 virtual ~Delegate() {} |
| 42 }; |
| 43 |
| 44 // Creates a zip file from the specified list of files and directories. |
| 45 ZipFileCreator(Delegate* delegate, |
| 46 const FilePath& dir_path, |
| 47 const FilePath& dest_path, |
| 48 const std::vector<FilePath>& file_paths); |
| 49 |
| 50 // Start creating the zip file. The client is called with the results. |
| 51 void Start(); |
| 52 |
| 53 private: |
| 54 class ProcessHostClient; |
| 55 |
| 56 friend class ProcessHostClient; |
| 57 friend class ZipFileCreatorTest; |
| 58 |
| 59 virtual ~ZipFileCreator(); |
| 60 |
| 61 // Starts the utility process that creates the zip file. |
| 62 void StartProcessOnIOThread(); |
| 63 |
| 64 // UtilityProcessHostClient |
| 65 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; |
| 66 virtual void OnProcessCrashed(int exit_code) OVERRIDE; |
| 67 |
| 68 // IPC message handlers. |
| 69 void OnCreateZipFileSucceeded(); |
| 70 void OnCreateZipFileFailed(); |
| 71 |
| 72 void ReportFailure(); |
| 73 void ReportSuccess(); |
| 74 |
| 75 // Our delegate's thread. This is the thread we respond on. |
| 76 content::BrowserThread::ID thread_identifier_; |
| 77 |
| 78 // Our delegate. |
| 79 Delegate* delegate_; |
| 80 |
| 81 // The common parent directory for the input and output files. |
| 82 FilePath dir_path_; |
| 83 |
| 84 // The output zip file. |
| 85 FilePath dest_path_; |
| 86 |
| 87 // The list of files and directories. |
| 88 std::vector<FilePath> file_paths_; |
| 89 |
| 90 // Whether we've received a response from the utility process yet. |
| 91 bool got_response_; |
| 92 }; |
| 93 |
| 94 } // namespace extensions |
| 95 |
| 96 #endif // CHROME_BROWSER_EXTENSIONS_ZIP_FILE_CREATOR_H_ |
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