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
|
// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "extensions/renderer/resource_bundle_source_map.h"
#include <ostream>
#include <string_view>
#include "base/notreached.h"
#include "extensions/renderer/static_v8_external_one_byte_string_resource.h"
#include "third_party/zlib/google/compression_utils.h"
#include "ui/base/resource/resource_bundle.h"
#include "v8/include/v8-primitive.h"
namespace extensions {
namespace {
v8::Local<v8::String> ConvertString(v8::Isolate* isolate,
std::string_view string) {
// v8 takes ownership of the StaticV8ExternalOneByteStringResource (see
// v8::String::NewExternalOneByte()).
return v8::String::NewExternalOneByte(
isolate, new StaticV8ExternalOneByteStringResource(string))
.FromMaybe(v8::Local<v8::String>());
}
} // namespace
ResourceBundleSourceMap::ResourceInfo::ResourceInfo() = default;
ResourceBundleSourceMap::ResourceInfo::ResourceInfo(int in_id) : id(in_id) {}
ResourceBundleSourceMap::ResourceInfo::ResourceInfo(ResourceInfo&& other) =
default;
ResourceBundleSourceMap::ResourceInfo::~ResourceInfo() = default;
ResourceBundleSourceMap::ResourceInfo&
ResourceBundleSourceMap::ResourceInfo::operator=(ResourceInfo&& other) =
default;
ResourceBundleSourceMap::ResourceBundleSourceMap(
const ui::ResourceBundle* resource_bundle)
: resource_bundle_(resource_bundle) {}
ResourceBundleSourceMap::~ResourceBundleSourceMap() = default;
void ResourceBundleSourceMap::RegisterSource(std::string_view name,
int resource_id) {
base::AutoLock lock(lock_);
resource_map_.emplace(name, resource_id);
}
v8::Local<v8::String> ResourceBundleSourceMap::GetSource(
v8::Isolate* isolate,
const std::string& name) const {
base::AutoLock lock(lock_);
auto resource_iter = resource_map_.find(name);
if (resource_iter == resource_map_.end()) {
DUMP_WILL_BE_NOTREACHED()
<< "No module is registered with name \"" << name << "\"";
return v8::Local<v8::String>();
}
const ResourceInfo& info = resource_iter->second;
if (info.cached) {
return ConvertString(isolate, *info.cached);
}
std::string_view resource = resource_bundle_->GetRawDataResource(info.id);
if (resource.empty()) {
DUMP_WILL_BE_NOTREACHED()
<< "Module resource registered as \"" << name << "\" not found";
return v8::Local<v8::String>();
}
bool is_gzipped = resource_bundle_->IsGzipped(info.id);
if (is_gzipped) {
info.cached = std::make_unique<std::string>();
if (!compression::GzipUncompress(resource, info.cached.get())) {
// Let |info.cached| point to an empty string, so that the next time when
// the resource is requested, the method returns an empty string directly,
// instead of trying to uncompress again.
info.cached->clear();
return v8::Local<v8::String>();
}
resource = *info.cached;
}
return ConvertString(isolate, resource);
}
bool ResourceBundleSourceMap::Contains(const std::string& name) const {
base::AutoLock lock(lock_);
return resource_map_.contains(name);
}
} // namespace extensions
|
