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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 "webkit/fileapi/file_system_util.h" | 5 #include "webkit/fileapi/file_system_util.h" |
| 6 | 6 |
| 7 #include "build/build_config.h" | 7 #include "build/build_config.h" |
| 8 | 8 |
| 9 #include "base/file_path.h" | 9 #include "base/file_path.h" |
| 10 #include "base/logging.h" | 10 #include "base/logging.h" |
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| 25 | 25 |
| 26 bool CrackFileSystemURL(const GURL& url, GURL* origin_url, FileSystemType* type, | 26 bool CrackFileSystemURL(const GURL& url, GURL* origin_url, FileSystemType* type, |
| 27 FilePath* file_path) { | 27 FilePath* file_path) { |
| 28 GURL origin; | 28 GURL origin; |
| 29 FileSystemType file_system_type; | 29 FileSystemType file_system_type; |
| 30 | 30 |
| 31 if (url.scheme() != "filesystem") | 31 if (url.scheme() != "filesystem") |
| 32 return false; | 32 return false; |
| 33 | 33 |
| 34 std::string temp = url.path(); | 34 std::string temp = url.path(); |
| 35 // TODO(ericu) remove this code when that ceases to be true, which should be | |
| 36 // soon. | |
| 37 // On Windows, this will have backslashes for now. | |
| 38 // url will look something like: | |
| 39 // filesystem:http://example.com/temporary/\dir\file.txt | |
| 40 // temp will look something like: | |
| 41 // http://example.com/temporary/\dir\file.txt | |
| 42 // On posix, url will look something like: | |
| 43 // filesystem:http://example.com/temporary/dir/file.txt | |
| 44 // temp will look something like: | |
| 45 // http://example.com/temporary/dir/file.txt | |
| 46 size_t pos = temp.find('\\'); | |
| 47 for (; pos != std::string::npos; pos = temp.find('\\', pos + 1)) { | |
| 48 temp[pos] = '/'; | |
| 49 } | |
| 50 // TODO(ericu): This should probably be done elsewhere after the stackable | |
| 51 // layers are properly in. We're supposed to reject any paths that contain | |
| 52 // '..' segments, but the GURL constructor is helpfully resolving them for us. | |
| 53 // Make sure there aren't any before we call it. | |
| 54 pos = temp.find(".."); | |
| 55 for (; pos != std::string::npos; pos = temp.find("..", pos + 1)) { | |
| 56 if ((pos == 0 || temp[pos - 1] == '/') && | |
| 57 (pos == temp.length() - 2 || temp[pos + 2] == '/')) | |
| 58 return false; | |
| 59 } | |
| 60 | 35 |
| 61 // bare_url will look something like: | 36 // bare_url will look something like: |
| 62 // http://example.com/temporary//dir/file.txt [on Windows; the double slash | 37 // http://example.com/temporary/dir/file.txt. |
| 63 // before dir will be single on posix]. | |
| 64 GURL bare_url(temp); | 38 GURL bare_url(temp); |
| 65 | 39 |
| 66 // The input URL was malformed, bail out early. | 40 // The input URL was malformed, bail out early. |
| 67 if (bare_url.path().empty()) | 41 if (bare_url.path().empty()) |
| 68 return false; | 42 return false; |
| 69 | 43 |
| 70 origin = bare_url.GetOrigin(); | 44 origin = bare_url.GetOrigin(); |
| 71 | 45 |
| 72 // The input URL was malformed, bail out early. | 46 // The input URL was malformed, bail out early. |
| 73 if (origin.is_empty()) | 47 if (origin.is_empty()) |
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| 122 path += (kExternalDir + 1); // We don't want the leading slash. | 96 path += (kExternalDir + 1); // We don't want the leading slash. |
| 123 break; | 97 break; |
| 124 default: | 98 default: |
| 125 NOTREACHED(); | 99 NOTREACHED(); |
| 126 return GURL(); | 100 return GURL(); |
| 127 } | 101 } |
| 128 return GURL(path); | 102 return GURL(path); |
| 129 } | 103 } |
| 130 | 104 |
| 131 } // namespace fileapi | 105 } // namespace fileapi |
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