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
|
// Copyright 2017 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/web_request_hooks.h"
#include "base/cxx17_backports.h"
#include "base/values.h"
#include "content/public/renderer/v8_value_converter.h"
#include "extensions/common/api/web_request.h"
#include "extensions/common/extension_api.h"
#include "extensions/renderer/bindings/api_binding_hooks.h"
#include "extensions/renderer/bindings/js_runner.h"
#include "extensions/renderer/get_script_context.h"
#include "extensions/renderer/module_system.h"
#include "extensions/renderer/script_context.h"
#include "extensions/renderer/script_context_set.h"
#include "gin/converter.h"
namespace extensions {
WebRequestHooks::WebRequestHooks() {}
WebRequestHooks::~WebRequestHooks() = default;
bool WebRequestHooks::CreateCustomEvent(
v8::Local<v8::Context> context,
const std::string& event_name,
v8::Local<v8::Value>* event_out) {
// Don't create a custom event for the "onActionIgnored" event.
if (event_name == api::web_request::OnActionIgnored::kEventName)
return false;
v8::Isolate* isolate = context->GetIsolate();
ScriptContext* script_context = GetScriptContextFromV8Context(context);
v8::Local<v8::Object> internal_bindings;
{
ModuleSystem::NativesEnabledScope enable_natives(
script_context->module_system());
if (!script_context->module_system()
->Require("webRequestEvent")
.ToLocal(&internal_bindings)) {
return false;
}
}
v8::Local<v8::Value> get_event_value;
{
v8::TryCatch try_catch(isolate);
if (!internal_bindings
->Get(context,
gin::StringToSymbol(isolate, "createWebRequestEvent"))
.ToLocal(&get_event_value) ||
!get_event_value->IsFunction()) {
NOTREACHED();
return false;
}
}
// The JS validates that the extra parameters passed to the web request event
// match the expected schema. We need to initialize the event with that
// schema.
const base::DictionaryValue* event_spec =
ExtensionAPI::GetSharedInstance()->GetSchema(event_name);
DCHECK(event_spec);
const base::ListValue* extra_params = nullptr;
CHECK(event_spec->GetList("extraParameters", &extra_params));
v8::Local<v8::Value> extra_parameters_spec =
content::V8ValueConverter::Create()->ToV8Value(extra_params, context);
v8::Local<v8::Function> get_event = get_event_value.As<v8::Function>();
v8::Local<v8::Value> args[] = {
gin::StringToSymbol(isolate, event_name),
v8::Undefined(isolate), // opt_argSchemas are ignored.
extra_parameters_spec,
// opt_eventOptions and opt_webViewInstanceId are ignored.
};
v8::TryCatch try_catch(isolate);
v8::Local<v8::Value> event;
if (!JSRunner::Get(context)
->RunJSFunctionSync(get_event, context, base::size(args), args)
.ToLocal(&event)) {
// TODO(devlin): Do we care about the error? In theory, this should never
// happen, so probably not.
event = v8::Undefined(isolate);
}
*event_out = event;
return true;
}
} // namespace extensions
|
