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| 1 // Copyright (c) 2006-2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2010 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 // For loading files, we make use of overlapped i/o to ensure that reading from | 5 // For loading files, we make use of overlapped i/o to ensure that reading from |
| 6 // the filesystem (e.g., a network filesystem) does not block the calling | 6 // the filesystem (e.g., a network filesystem) does not block the calling |
| 7 // thread. An alternative approach would be to use a background thread or pool | 7 // thread. An alternative approach would be to use a background thread or pool |
| 8 // of threads, but it seems better to leverage the operating system's ability | 8 // of threads, but it seems better to leverage the operating system's ability |
| 9 // to do background file reads for us. | 9 // to do background file reads for us. |
| 10 // | 10 // |
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| 76 } | 76 } |
| 77 | 77 |
| 78 URLRequestFileJob* owner_; | 78 URLRequestFileJob* owner_; |
| 79 | 79 |
| 80 Lock lock_; | 80 Lock lock_; |
| 81 MessageLoop* owner_loop_; | 81 MessageLoop* owner_loop_; |
| 82 }; | 82 }; |
| 83 #endif | 83 #endif |
| 84 | 84 |
| 85 // static | 85 // static |
| 86 URLRequestJob* URLRequestFileJob::Factory(net::URLRequest* request, | 86 net::URLRequestJob* URLRequestFileJob::Factory(net::URLRequest* request, |
| 87 const std::string& scheme) { | 87 const std::string& scheme) { |
| 88 | 88 |
| 89 FilePath file_path; | 89 FilePath file_path; |
| 90 const bool is_file = net::FileURLToFilePath(request->url(), &file_path); | 90 const bool is_file = net::FileURLToFilePath(request->url(), &file_path); |
| 91 | 91 |
| 92 #if defined(OS_CHROMEOS) | 92 #if defined(OS_CHROMEOS) |
| 93 // Check file access. | 93 // Check file access. |
| 94 if (AccessDisabled(file_path)) | 94 if (AccessDisabled(file_path)) |
| 95 return new URLRequestErrorJob(request, net::ERR_ACCESS_DENIED); | 95 return new URLRequestErrorJob(request, net::ERR_ACCESS_DENIED); |
| 96 #endif | 96 #endif |
| 97 | 97 |
| 98 // We need to decide whether to create URLRequestFileJob for file access or | 98 // We need to decide whether to create URLRequestFileJob for file access or |
| 99 // URLRequestFileDirJob for directory access. To avoid accessing the | 99 // URLRequestFileDirJob for directory access. To avoid accessing the |
| 100 // filesystem, we only look at the path string here. | 100 // filesystem, we only look at the path string here. |
| 101 // The code in the URLRequestFileJob::Start() method discovers that a path, | 101 // The code in the URLRequestFileJob::Start() method discovers that a path, |
| 102 // which doesn't end with a slash, should really be treated as a directory, | 102 // which doesn't end with a slash, should really be treated as a directory, |
| 103 // and it then redirects to the URLRequestFileDirJob. | 103 // and it then redirects to the URLRequestFileDirJob. |
| 104 if (is_file && | 104 if (is_file && |
| 105 file_util::EndsWithSeparator(file_path) && | 105 file_util::EndsWithSeparator(file_path) && |
| 106 file_path.IsAbsolute()) | 106 file_path.IsAbsolute()) |
| 107 return new URLRequestFileDirJob(request, file_path); | 107 return new URLRequestFileDirJob(request, file_path); |
| 108 | 108 |
| 109 // Use a regular file request job for all non-directories (including invalid | 109 // Use a regular file request job for all non-directories (including invalid |
| 110 // file names). | 110 // file names). |
| 111 return new URLRequestFileJob(request, file_path); | 111 return new URLRequestFileJob(request, file_path); |
| 112 } | 112 } |
| 113 | 113 |
| 114 URLRequestFileJob::URLRequestFileJob(net::URLRequest* request, | 114 URLRequestFileJob::URLRequestFileJob(net::URLRequest* request, |
| 115 const FilePath& file_path) | 115 const FilePath& file_path) |
| 116 : URLRequestJob(request), | 116 : net::URLRequestJob(request), |
| 117 file_path_(file_path), | 117 file_path_(file_path), |
| 118 ALLOW_THIS_IN_INITIALIZER_LIST( | 118 ALLOW_THIS_IN_INITIALIZER_LIST( |
| 119 io_callback_(this, &URLRequestFileJob::DidRead)), | 119 io_callback_(this, &URLRequestFileJob::DidRead)), |
| 120 is_directory_(false), | 120 is_directory_(false), |
| 121 remaining_bytes_(0), | 121 remaining_bytes_(0), |
| 122 ALLOW_THIS_IN_INITIALIZER_LIST(method_factory_(this)) { | 122 ALLOW_THIS_IN_INITIALIZER_LIST(method_factory_(this)) { |
| 123 } | 123 } |
| 124 | 124 |
| 125 URLRequestFileJob::~URLRequestFileJob() { | 125 URLRequestFileJob::~URLRequestFileJob() { |
| 126 #if defined(OS_WIN) | 126 #if defined(OS_WIN) |
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| 159 void URLRequestFileJob::Kill() { | 159 void URLRequestFileJob::Kill() { |
| 160 stream_.Close(); | 160 stream_.Close(); |
| 161 | 161 |
| 162 #if defined(OS_WIN) | 162 #if defined(OS_WIN) |
| 163 if (async_resolver_) { | 163 if (async_resolver_) { |
| 164 async_resolver_->Cancel(); | 164 async_resolver_->Cancel(); |
| 165 async_resolver_ = NULL; | 165 async_resolver_ = NULL; |
| 166 } | 166 } |
| 167 #endif | 167 #endif |
| 168 | 168 |
| 169 URLRequestJob::Kill(); | 169 net::URLRequestJob::Kill(); |
| 170 method_factory_.RevokeAll(); | 170 method_factory_.RevokeAll(); |
| 171 } | 171 } |
| 172 | 172 |
| 173 bool URLRequestFileJob::ReadRawData(net::IOBuffer* dest, int dest_size, | 173 bool URLRequestFileJob::ReadRawData(net::IOBuffer* dest, int dest_size, |
| 174 int *bytes_read) { | 174 int *bytes_read) { |
| 175 DCHECK_NE(dest_size, 0); | 175 DCHECK_NE(dest_size, 0); |
| 176 DCHECK(bytes_read); | 176 DCHECK(bytes_read); |
| 177 DCHECK_GE(remaining_bytes_, 0); | 177 DCHECK_GE(remaining_bytes_, 0); |
| 178 | 178 |
| 179 if (remaining_bytes_ < dest_size) | 179 if (remaining_bytes_ < dest_size) |
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| 379 const FilePath white_listed_path(kLocalAccessWhiteList[i]); | 379 const FilePath white_listed_path(kLocalAccessWhiteList[i]); |
| 380 // FilePath::operator== should probably handle trailing seperators. | 380 // FilePath::operator== should probably handle trailing seperators. |
| 381 if (white_listed_path == file_path.StripTrailingSeparators() || | 381 if (white_listed_path == file_path.StripTrailingSeparators() || |
| 382 white_listed_path.IsParent(file_path)) { | 382 white_listed_path.IsParent(file_path)) { |
| 383 return false; | 383 return false; |
| 384 } | 384 } |
| 385 } | 385 } |
| 386 return true; | 386 return true; |
| 387 } | 387 } |
| 388 #endif | 388 #endif |
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