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.
5 #include "chrome/renderer/extensions/file_system_natives.h"
9 #include "base/basictypes.h"
10 #include "base/logging.h"
11 #include "chrome/common/url_constants.h"
12 #include "chrome/renderer/extensions/chrome_v8_context.h"
13 #include "chrome/renderer/extensions/user_script_slave.h"
14 #include "extensions/common/constants.h"
15 #include "grit/renderer_resources.h"
16 #include "third_party/WebKit/public/platform/WebFileSystem.h"
17 #include "third_party/WebKit/public/platform/WebFileSystemType.h"
18 #include "third_party/WebKit/public/platform/WebString.h"
19 #include "third_party/WebKit/public/web/WebFrame.h"
20 #include "webkit/common/fileapi/file_system_types.h"
21 #include "webkit/common/fileapi/file_system_util.h"
23 namespace extensions {
25 FileSystemNatives::FileSystemNatives(ChromeV8Context* context)
26 : ObjectBackedNativeHandler(context) {
27 RouteFunction("GetFileEntry",
28 base::Bind(&FileSystemNatives::GetFileEntry, base::Unretained(this)));
29 RouteFunction("GetIsolatedFileSystem",
30 base::Bind(&FileSystemNatives::GetIsolatedFileSystem,
31 base::Unretained(this)));
32 RouteFunction("CrackIsolatedFileSystemName",
33 base::Bind(&FileSystemNatives::CrackIsolatedFileSystemName,
34 base::Unretained(this)));
37 void FileSystemNatives::GetIsolatedFileSystem(
38 const v8::FunctionCallbackInfo<v8::Value>& args) {
39 DCHECK(args.Length() == 1 || args.Length() == 2);
40 DCHECK(args[0]->IsString());
41 std::string file_system_id(*v8::String::Utf8Value(args[0]));
42 WebKit::WebFrame* webframe =
43 WebKit::WebFrame::frameForContext(context()->v8_context());
47 extensions::UserScriptSlave::GetDataSourceURLForFrame(webframe);
48 CHECK(context_url.SchemeIs(extensions::kExtensionScheme));
50 std::string name(fileapi::GetIsolatedFileSystemName(context_url.GetOrigin(),
53 // The optional second argument is the subfolder within the isolated file
54 // system at which to root the DOMFileSystem we're returning to the caller.
55 std::string optional_root_name;
56 if (args.Length() == 2) {
57 DCHECK(args[1]->IsString());
58 optional_root_name = *v8::String::Utf8Value(args[1]);
61 std::string root(fileapi::GetIsolatedFileSystemRootURIString(
62 context_url.GetOrigin(),
66 args.GetReturnValue().Set(webframe->createFileSystem(
67 WebKit::WebFileSystemTypeIsolated,
68 WebKit::WebString::fromUTF8(name),
69 WebKit::WebString::fromUTF8(root)));
72 void FileSystemNatives::GetFileEntry(
73 const v8::FunctionCallbackInfo<v8::Value>& args) {
74 DCHECK(args.Length() == 5);
75 DCHECK(args[0]->IsString());
76 std::string type_string = *v8::String::Utf8Value(args[0]->ToString());
77 WebKit::WebFileSystemType type;
78 bool is_valid_type = fileapi::GetFileSystemPublicType(type_string, &type);
79 DCHECK(is_valid_type);
80 if (is_valid_type == false) {
84 DCHECK(args[1]->IsString());
85 DCHECK(args[2]->IsString());
86 DCHECK(args[3]->IsString());
87 std::string file_system_name(*v8::String::Utf8Value(args[1]->ToString()));
88 std::string file_system_root_url(*v8::String::Utf8Value(args[2]->ToString()));
89 std::string file_path_string(*v8::String::Utf8Value(args[3]->ToString()));
90 base::FilePath file_path = base::FilePath::FromUTF8Unsafe(file_path_string);
91 DCHECK(fileapi::VirtualPath::IsAbsolute(file_path.value()));
93 DCHECK(args[4]->IsBoolean());
94 bool is_directory = args[4]->BooleanValue();
96 WebKit::WebFrame* webframe =
97 WebKit::WebFrame::frameForContext(context()->v8_context());
99 args.GetReturnValue().Set(webframe->createFileEntry(
101 WebKit::WebString::fromUTF8(file_system_name),
102 WebKit::WebString::fromUTF8(file_system_root_url),
103 WebKit::WebString::fromUTF8(file_path_string),
107 void FileSystemNatives::CrackIsolatedFileSystemName(
108 const v8::FunctionCallbackInfo<v8::Value>& args) {
109 DCHECK_EQ(args.Length(), 1);
110 DCHECK(args[0]->IsString());
111 std::string filesystem_name = *v8::String::Utf8Value(args[0]->ToString());
112 std::string filesystem_id;
113 if (!fileapi::CrackIsolatedFileSystemName(filesystem_name, &filesystem_id))
116 args.GetReturnValue().Set(
117 v8::String::New(filesystem_id.c_str(), filesystem_id.size()));
120 } // namespace extensions