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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 "webkit/fileapi/file_system_url.h" | |
6 | |
7 #include <sstream> | |
8 | |
9 #include "base/logging.h" | |
10 #include "base/string_util.h" | |
11 #include "net/base/escape.h" | |
12 #include "webkit/fileapi/file_system_types.h" | |
13 #include "webkit/fileapi/file_system_util.h" | |
14 | |
15 namespace fileapi { | |
16 | |
17 namespace { | |
18 | |
19 } // namespace | |
20 | |
21 FileSystemURL::FileSystemURL() | |
22 : is_valid_(false), | |
23 mount_type_(kFileSystemTypeUnknown), | |
24 type_(kFileSystemTypeUnknown) { | |
25 } | |
26 | |
27 // static | |
28 FileSystemURL FileSystemURL::CreateForTest(const GURL& url) { | |
29 return FileSystemURL(url); | |
30 } | |
31 | |
32 FileSystemURL FileSystemURL::CreateForTest(const GURL& origin, | |
33 FileSystemType mount_type, | |
34 const base::FilePath& virtual_path) { | |
35 return FileSystemURL(origin, mount_type, virtual_path); | |
36 } | |
37 | |
38 // static | |
39 bool FileSystemURL::ParseFileSystemSchemeURL( | |
40 const GURL& url, | |
41 GURL* origin_url, | |
42 FileSystemType* mount_type, | |
43 base::FilePath* virtual_path) { | |
44 GURL origin; | |
45 FileSystemType file_system_type = kFileSystemTypeUnknown; | |
46 | |
47 if (!url.is_valid() || !url.SchemeIsFileSystem()) | |
48 return false; | |
49 DCHECK(url.inner_url()); | |
50 | |
51 std::string inner_path = url.inner_url()->path(); | |
52 | |
53 const struct { | |
54 FileSystemType type; | |
55 const char* dir; | |
56 } kValidTypes[] = { | |
57 { kFileSystemTypePersistent, kPersistentDir }, | |
58 { kFileSystemTypeTemporary, kTemporaryDir }, | |
59 { kFileSystemTypeIsolated, kIsolatedDir }, | |
60 { kFileSystemTypeExternal, kExternalDir }, | |
61 { kFileSystemTypeTest, kTestDir }, | |
62 }; | |
63 | |
64 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kValidTypes); ++i) { | |
65 if (StartsWithASCII(inner_path, kValidTypes[i].dir, true)) { | |
66 file_system_type = kValidTypes[i].type; | |
67 break; | |
68 } | |
69 } | |
70 | |
71 if (file_system_type == kFileSystemTypeUnknown) | |
72 return false; | |
73 | |
74 std::string path = net::UnescapeURLComponent(url.path(), | |
75 net::UnescapeRule::SPACES | net::UnescapeRule::URL_SPECIAL_CHARS | | |
76 net::UnescapeRule::CONTROL_CHARS); | |
77 | |
78 // Ensure the path is relative. | |
79 while (!path.empty() && path[0] == '/') | |
80 path.erase(0, 1); | |
81 | |
82 base::FilePath converted_path = base::FilePath::FromUTF8Unsafe(path); | |
83 | |
84 // All parent references should have been resolved in the renderer. | |
85 if (converted_path.ReferencesParent()) | |
86 return false; | |
87 | |
88 if (origin_url) | |
89 *origin_url = url.GetOrigin(); | |
90 if (mount_type) | |
91 *mount_type = file_system_type; | |
92 if (virtual_path) | |
93 *virtual_path = converted_path.NormalizePathSeparators(). | |
94 StripTrailingSeparators(); | |
95 | |
96 return true; | |
97 } | |
98 | |
99 FileSystemURL::FileSystemURL(const GURL& url) | |
100 : mount_type_(kFileSystemTypeUnknown), | |
101 type_(kFileSystemTypeUnknown) { | |
102 is_valid_ = ParseFileSystemSchemeURL(url, &origin_, &mount_type_, | |
103 &virtual_path_); | |
104 path_ = virtual_path_; | |
105 type_ = mount_type_; | |
106 } | |
107 | |
108 FileSystemURL::FileSystemURL(const GURL& origin, | |
109 FileSystemType mount_type, | |
110 const base::FilePath& virtual_path) | |
111 : is_valid_(true), | |
112 origin_(origin), | |
113 mount_type_(mount_type), | |
114 virtual_path_(virtual_path.NormalizePathSeparators()), | |
115 type_(mount_type), | |
116 path_(virtual_path.NormalizePathSeparators()) { | |
117 } | |
118 | |
119 FileSystemURL::FileSystemURL(const GURL& origin, | |
120 FileSystemType mount_type, | |
121 const base::FilePath& virtual_path, | |
122 const std::string& mount_filesystem_id, | |
123 FileSystemType cracked_type, | |
124 const base::FilePath& cracked_path, | |
125 const std::string& filesystem_id) | |
126 : is_valid_(true), | |
127 origin_(origin), | |
128 mount_type_(mount_type), | |
129 virtual_path_(virtual_path.NormalizePathSeparators()), | |
130 mount_filesystem_id_(mount_filesystem_id), | |
131 type_(cracked_type), | |
132 path_(cracked_path.NormalizePathSeparators()), | |
133 filesystem_id_(filesystem_id) { | |
134 } | |
135 | |
136 FileSystemURL::~FileSystemURL() {} | |
137 | |
138 std::string FileSystemURL::DebugString() const { | |
139 if (!is_valid_) | |
140 return "invalid filesystem: URL"; | |
141 std::ostringstream ss; | |
142 ss << GetFileSystemRootURI(origin_, mount_type_); | |
143 | |
144 // filesystem_id_ will be non empty for (and only for) cracked URLs. | |
145 if (!filesystem_id_.empty()) { | |
146 ss << virtual_path_.value(); | |
147 ss << " ("; | |
148 ss << GetFileSystemTypeString(type_) << "@" << filesystem_id_ << ":"; | |
149 ss << path_.value(); | |
150 ss << ")"; | |
151 } else { | |
152 ss << path_.value(); | |
153 } | |
154 return ss.str(); | |
155 } | |
156 | |
157 bool FileSystemURL::IsParent(const FileSystemURL& child) const { | |
158 return IsInSameFileSystem(child) && | |
159 path().IsParent(child.path()); | |
160 } | |
161 | |
162 bool FileSystemURL::IsInSameFileSystem(const FileSystemURL& other) const { | |
163 return origin() == other.origin() && | |
164 type() == other.type() && | |
165 filesystem_id() == other.filesystem_id(); | |
166 } | |
167 | |
168 bool FileSystemURL::operator==(const FileSystemURL& that) const { | |
169 return origin_ == that.origin_ && | |
170 type_ == that.type_ && | |
171 path_ == that.path_ && | |
172 filesystem_id_ == that.filesystem_id_ && | |
173 is_valid_ == that.is_valid_; | |
174 } | |
175 | |
176 bool FileSystemURL::Comparator::operator()(const FileSystemURL& lhs, | |
177 const FileSystemURL& rhs) const { | |
178 DCHECK(lhs.is_valid_ && rhs.is_valid_); | |
179 if (lhs.origin_ != rhs.origin_) | |
180 return lhs.origin_ < rhs.origin_; | |
181 if (lhs.type_ != rhs.type_) | |
182 return lhs.type_ < rhs.type_; | |
183 if (lhs.filesystem_id_ != rhs.filesystem_id_) | |
184 return lhs.filesystem_id_ < rhs.filesystem_id_; | |
185 return lhs.path_ < rhs.path_; | |
186 } | |
187 | |
188 } // namespace fileapi | |
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