1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "extensions/renderer/file_system_natives.h"
#include <string>
#include "extensions/common/constants.h"
#include "extensions/renderer/script_context.h"
#include "storage/common/fileapi/file_system_types.h"
#include "storage/common/fileapi/file_system_util.h"
#include "third_party/WebKit/public/platform/WebString.h"
#include "third_party/WebKit/public/web/WebDOMFileSystem.h"
#include "third_party/WebKit/public/web/WebLocalFrame.h"
#include "url/origin.h"
namespace extensions {
FileSystemNatives::FileSystemNatives(ScriptContext* context)
: ObjectBackedNativeHandler(context) {
RouteFunction(
"GetFileEntry",
base::Bind(&FileSystemNatives::GetFileEntry, base::Unretained(this)));
RouteFunction("GetIsolatedFileSystem",
base::Bind(&FileSystemNatives::GetIsolatedFileSystem,
base::Unretained(this)));
RouteFunction("CrackIsolatedFileSystemName",
base::Bind(&FileSystemNatives::CrackIsolatedFileSystemName,
base::Unretained(this)));
}
void FileSystemNatives::GetIsolatedFileSystem(
const v8::FunctionCallbackInfo<v8::Value>& args) {
CHECK(args.Length() == 1 || args.Length() == 2);
CHECK(args[0]->IsString());
std::string file_system_id(*v8::String::Utf8Value(args[0]));
blink::WebLocalFrame* webframe =
blink::WebLocalFrame::frameForContext(context()->v8_context());
DCHECK(webframe);
GURL context_url =
extensions::ScriptContext::GetDataSourceURLForFrame(webframe);
CHECK(context_url.SchemeIs(extensions::kExtensionScheme));
const GURL origin(url::Origin(context_url).Serialize());
std::string name(storage::GetIsolatedFileSystemName(origin, file_system_id));
// The optional second argument is the subfolder within the isolated file
// system at which to root the DOMFileSystem we're returning to the caller.
std::string optional_root_name;
if (args.Length() == 2) {
CHECK(args[1]->IsString());
optional_root_name = *v8::String::Utf8Value(args[1]);
}
GURL root_url(storage::GetIsolatedFileSystemRootURIString(
origin, file_system_id, optional_root_name));
args.GetReturnValue().Set(
blink::WebDOMFileSystem::create(webframe,
blink::WebFileSystemTypeIsolated,
blink::WebString::fromUTF8(name),
root_url)
.toV8Value(context()->v8_context()->Global(), args.GetIsolate()));
}
void FileSystemNatives::GetFileEntry(
const v8::FunctionCallbackInfo<v8::Value>& args) {
CHECK_EQ(5, args.Length());
CHECK(args[0]->IsString());
std::string type_string = *v8::String::Utf8Value(args[0]);
blink::WebFileSystemType type;
bool is_valid_type = storage::GetFileSystemPublicType(type_string, &type);
DCHECK(is_valid_type);
if (is_valid_type == false) {
return;
}
CHECK(args[1]->IsString());
CHECK(args[2]->IsString());
CHECK(args[3]->IsString());
std::string file_system_name(*v8::String::Utf8Value(args[1]));
GURL file_system_root_url(*v8::String::Utf8Value(args[2]));
std::string file_path_string(*v8::String::Utf8Value(args[3]));
base::FilePath file_path = base::FilePath::FromUTF8Unsafe(file_path_string);
DCHECK(storage::VirtualPath::IsAbsolute(file_path.value()));
CHECK(args[4]->IsBoolean());
blink::WebDOMFileSystem::EntryType entry_type =
args[4]->BooleanValue() ? blink::WebDOMFileSystem::EntryTypeDirectory
: blink::WebDOMFileSystem::EntryTypeFile;
blink::WebLocalFrame* webframe =
blink::WebLocalFrame::frameForContext(context()->v8_context());
DCHECK(webframe);
args.GetReturnValue().Set(
blink::WebDOMFileSystem::create(
webframe,
type,
blink::WebString::fromUTF8(file_system_name),
file_system_root_url)
.createV8Entry(blink::WebString::fromUTF8(file_path_string),
entry_type,
context()->v8_context()->Global(),
args.GetIsolate()));
}
void FileSystemNatives::CrackIsolatedFileSystemName(
const v8::FunctionCallbackInfo<v8::Value>& args) {
DCHECK_EQ(args.Length(), 1);
DCHECK(args[0]->IsString());
std::string filesystem_name = *v8::String::Utf8Value(args[0]);
std::string filesystem_id;
if (!storage::CrackIsolatedFileSystemName(filesystem_name, &filesystem_id))
return;
args.GetReturnValue().Set(v8::String::NewFromUtf8(args.GetIsolate(),
filesystem_id.c_str(),
v8::String::kNormalString,
filesystem_id.size()));
}
} // namespace extensions
|
