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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 #include "net/url_request/file_protocol_handler.h" | |
6 | |
7 #include "base/logging.h" | |
8 #include "base/task_runner.h" | |
9 #include "net/base/filename_util.h" | |
10 #include "net/base/net_errors.h" | |
11 #include "net/url_request/url_request.h" | |
12 #include "net/url_request/url_request_error_job.h" | |
13 #include "net/url_request/url_request_file_dir_job.h" | |
14 #include "net/url_request/url_request_file_job.h" | |
15 | |
16 namespace net { | |
17 | |
18 FileProtocolHandler::FileProtocolHandler( | |
19 const scoped_refptr<base::TaskRunner>& file_task_runner) | |
20 : file_task_runner_(file_task_runner) {} | |
21 | |
22 FileProtocolHandler::~FileProtocolHandler() {} | |
23 | |
24 URLRequestJob* FileProtocolHandler::MaybeCreateJob( | |
25 URLRequest* request, NetworkDelegate* network_delegate) const { | |
26 base::FilePath file_path; | |
27 const bool is_file = FileURLToFilePath(request->url(), &file_path); | |
28 | |
29 // Check file access permissions. | |
30 if (!network_delegate || | |
31 !network_delegate->CanAccessFile(*request, file_path)) { | |
32 return new URLRequestErrorJob(request, network_delegate, ERR_ACCESS_DENIED); | |
33 } | |
34 | |
35 // We need to decide whether to create URLRequestFileJob for file access or | |
36 // URLRequestFileDirJob for directory access. To avoid accessing the | |
37 // filesystem, we only look at the path string here. | |
38 // The code in the URLRequestFileJob::Start() method discovers that a path, | |
39 // which doesn't end with a slash, should really be treated as a directory, | |
40 // and it then redirects to the URLRequestFileDirJob. | |
41 if (is_file && | |
42 file_path.EndsWithSeparator() && | |
43 file_path.IsAbsolute()) { | |
44 return new URLRequestFileDirJob(request, network_delegate, file_path); | |
45 } | |
46 | |
47 // Use a regular file request job for all non-directories (including invalid | |
48 // file names). | |
49 return new URLRequestFileJob(request, network_delegate, file_path, | |
50 file_task_runner_); | |
51 } | |
52 | |
53 bool FileProtocolHandler::IsSafeRedirectTarget(const GURL& location) const { | |
54 return false; | |
55 } | |
56 | |
57 } // namespace net | |
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