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1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2009 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 #include "chrome/browser/extensions/sandboxed_extension_unpacker.h" | 5 #include "chrome/browser/extensions/sandboxed_extension_unpacker.h" |
6 | 6 |
7 #include <set> | 7 #include <set> |
8 | 8 |
9 #include "base/base64.h" | 9 #include "base/base64.h" |
10 #include "base/crypto/signature_verifier.h" | 10 #include "base/crypto/signature_verifier.h" |
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35 : crx_path_(crx_path), temp_path_(temp_path), | 35 : crx_path_(crx_path), temp_path_(temp_path), |
36 thread_identifier_(ChromeThread::ID_COUNT), | 36 thread_identifier_(ChromeThread::ID_COUNT), |
37 rdh_(rdh), client_(client), got_response_(false) { | 37 rdh_(rdh), client_(client), got_response_(false) { |
38 } | 38 } |
39 | 39 |
40 void SandboxedExtensionUnpacker::Start() { | 40 void SandboxedExtensionUnpacker::Start() { |
41 // We assume that we are started on the thread that the client wants us to do | 41 // We assume that we are started on the thread that the client wants us to do |
42 // file IO on. | 42 // file IO on. |
43 CHECK(ChromeThread::GetCurrentThreadIdentifier(&thread_identifier_)); | 43 CHECK(ChromeThread::GetCurrentThreadIdentifier(&thread_identifier_)); |
44 | 44 |
45 // To understand crbug/35198, allow users who can reproduce the bug | |
46 // to loosen permissions on the scoped directory. | |
47 bool loosen_permissions = false; | |
48 #if defined (OS_WIN) | |
49 loosen_permissions = CommandLine::ForCurrentProcess()->HasSwitch( | |
50 switches::kIssue35198Permission); | |
51 LOG(INFO) << "loosen_permissions = " << loosen_permissions; | |
52 #endif | |
53 | |
54 // Create a temporary directory to work in. | 45 // Create a temporary directory to work in. |
55 if (!temp_dir_.CreateUniqueTempDirUnderPath(temp_path_, | 46 if (!temp_dir_.CreateUniqueTempDirUnderPath(temp_path_)) { |
56 loosen_permissions)) { | |
57 ReportFailure("Could not create temporary directory."); | 47 ReportFailure("Could not create temporary directory."); |
58 return; | 48 return; |
59 } | 49 } |
60 | 50 |
61 // Initialize the path that will eventually contain the unpacked extension. | 51 // Initialize the path that will eventually contain the unpacked extension. |
62 extension_root_ = temp_dir_.path().AppendASCII( | 52 extension_root_ = temp_dir_.path().AppendASCII( |
63 extension_filenames::kTempExtensionName); | 53 extension_filenames::kTempExtensionName); |
64 | 54 |
65 // To understand crbug/35198, allow users who can reproduce the bug to | |
66 // create the unpack directory in the browser process. | |
67 bool crxdir_in_browser = CommandLine::ForCurrentProcess()->HasSwitch( | |
68 switches::kIssue35198CrxDirBrowser); | |
69 LOG(INFO) << "crxdir_in_browser = " << crxdir_in_browser; | |
70 if (crxdir_in_browser && !file_util::CreateDirectory(extension_root_)) { | |
71 LOG(ERROR) << "Failed to create directory " << extension_root_.value(); | |
72 } | |
73 | |
74 // Extract the public key and validate the package. | 55 // Extract the public key and validate the package. |
75 if (!ValidateSignature()) | 56 if (!ValidateSignature()) |
76 return; // ValidateSignature() already reported the error. | 57 return; // ValidateSignature() already reported the error. |
77 | 58 |
78 // Copy the crx file into our working directory. | 59 // Copy the crx file into our working directory. |
79 FilePath temp_crx_path = temp_dir_.path().Append(crx_path_.BaseName()); | 60 FilePath temp_crx_path = temp_dir_.path().Append(crx_path_.BaseName()); |
80 if (!file_util::CopyFile(crx_path_, temp_crx_path)) { | 61 if (!file_util::CopyFile(crx_path_, temp_crx_path)) { |
81 ReportFailure("Failed to copy extension file to temporary directory."); | 62 ReportFailure("Failed to copy extension file to temporary directory."); |
82 return; | 63 return; |
83 } | 64 } |
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408 if (!file_util::WriteFile(path, | 389 if (!file_util::WriteFile(path, |
409 catalog_json.c_str(), | 390 catalog_json.c_str(), |
410 catalog_json.size())) { | 391 catalog_json.size())) { |
411 ReportFailure("Error saving catalog."); | 392 ReportFailure("Error saving catalog."); |
412 return false; | 393 return false; |
413 } | 394 } |
414 } | 395 } |
415 | 396 |
416 return true; | 397 return true; |
417 } | 398 } |
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