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
|
// Copyright (c) 2012 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 "content/browser/webui/shared_resources_data_source.h"
#include "base/logging.h"
#include "base/memory/ref_counted_memory.h"
#include "base/strings/string_util.h"
#include "base/threading/thread_restrictions.h"
#include "content/public/common/content_client.h"
#include "content/public/common/url_constants.h"
#include "net/base/mime_util.h"
#include "ui/resources/grit/webui_resources_map.h"
namespace {
const char kAppImagesPath[] = "images/apps/";
const char kAppImagesPath2x[] = "images/2x/apps/";
const char kReplacement[] = "../../resources/default_100_percent/common/";
const char kReplacement2x[] = "../../resources/default_200_percent/common/";
// This entire method is a hack introduced to be able to handle apps images
// that exist in the ui/resources directory. From JS/CSS, we still load the
// image as if it were chrome://resources/images/apps/myappimage.png, if that
// path doesn't exist, we check to see if it that image exists in the relative
// path to ui/resources instead.
// TODO(rkc): Once we have a separate source for apps, remove this code.
bool AppsRelativePathMatch(const std::string& path,
const std::string& compareto) {
if (StartsWithASCII(path, kAppImagesPath, false)) {
if (compareto ==
(kReplacement + path.substr(arraysize(kAppImagesPath) - 1)))
return true;
} else if (StartsWithASCII(path, kAppImagesPath2x, false)) {
if (compareto ==
(kReplacement2x + path.substr(arraysize(kAppImagesPath2x) - 1)))
return true;
}
return false;
}
int PathToIDR(const std::string& path) {
int idr = -1;
for (size_t i = 0; i < kWebuiResourcesSize; ++i) {
if ((path == kWebuiResources[i].name) ||
AppsRelativePathMatch(path, kWebuiResources[i].name)) {
idr = kWebuiResources[i].value;
break;
}
}
return idr;
}
} // namespace
SharedResourcesDataSource::SharedResourcesDataSource() {
}
SharedResourcesDataSource::~SharedResourcesDataSource() {
}
std::string SharedResourcesDataSource::GetSource() const {
return content::kChromeUIResourcesHost;
}
void SharedResourcesDataSource::StartDataRequest(
const std::string& path,
int render_process_id,
int render_frame_id,
const content::URLDataSource::GotDataCallback& callback) {
int idr = PathToIDR(path);
DCHECK_NE(-1, idr) << " path: " << path;
scoped_refptr<base::RefCountedStaticMemory> bytes(
content::GetContentClient()->GetDataResourceBytes(idr));
callback.Run(bytes.get());
}
std::string SharedResourcesDataSource::GetMimeType(
const std::string& path) const {
// Requests should not block on the disk! On POSIX this goes to disk.
// http://code.google.com/p/chromium/issues/detail?id=59849
base::ThreadRestrictions::ScopedAllowIO allow_io;
std::string mime_type;
net::GetMimeTypeFromFile(base::FilePath().AppendASCII(path), &mime_type);
return mime_type;
}
std::string
SharedResourcesDataSource::GetAccessControlAllowOriginForOrigin(
const std::string& origin) const {
// For now we give access only for "chrome://*" origins.
// According to CORS spec, Access-Control-Allow-Origin header doesn't support
// wildcards, so we need to set its value explicitly by passing the |origin|
// back.
std::string allowed_origin_prefix = content::kChromeUIScheme;
allowed_origin_prefix += "://";
if (origin.find(allowed_origin_prefix) != 0)
return "none";
return origin;
}
|
