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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/renderer/extensions/api/identity_hooks_delegate.h"
#include "base/check.h"
#include "base/functional/bind.h"
#include "extensions/renderer/bindings/api_binding_types.h"
#include "extensions/renderer/v8_helpers.h"
namespace extensions {
namespace {
constexpr char kGetAuthToken[] = "identity.getAuthToken";
// Function that, for callback based API calls, will make the values associated
// with each property on the return object a separate argument in a new result
// vector it returns instead.
// Note: This is to allow the promise version of the API to return a
// single object, while still supporting the previous callback version which
// expects multiple parameters to be passed to the callback.
v8::LocalVector<v8::Value> MassageGetAuthTokenResults(
const v8::LocalVector<v8::Value>& result_args,
v8::Local<v8::Context> context,
binding::AsyncResponseType async_type) {
// If this is not a callback based API call, we don't need to modify anything.
if (async_type != binding::AsyncResponseType::kCallback) {
return result_args;
}
DCHECK_EQ(1u, result_args.size());
DCHECK(result_args[0]->IsObject());
v8::Local<v8::Object> result_obj = result_args[0].As<v8::Object>();
// The object sent back has two properties on it which we need to split into
// two separate arguments"
v8::Local<v8::Value> token;
bool success = v8_helpers::GetProperty(context, result_obj, "token", &token);
DCHECK(success);
v8::Local<v8::Value> granted_scopes;
success = v8_helpers::GetProperty(context, result_obj, "grantedScopes",
&granted_scopes);
DCHECK(success);
v8::LocalVector<v8::Value> new_args(context->GetIsolate(),
{token, granted_scopes});
return new_args;
}
} // namespace
using RequestResult = APIBindingHooks::RequestResult;
IdentityHooksDelegate::IdentityHooksDelegate() = default;
IdentityHooksDelegate::~IdentityHooksDelegate() = default;
RequestResult IdentityHooksDelegate::HandleRequest(
const std::string& method_name,
const APISignature* signature,
v8::Local<v8::Context> context,
v8::LocalVector<v8::Value>* arguments,
const APITypeReferenceMap& refs) {
// Only add the result handler for the getAuthToken function.
if (method_name != kGetAuthToken)
return RequestResult(RequestResult::NOT_HANDLED);
return RequestResult(RequestResult::NOT_HANDLED,
v8::Local<v8::Function>() /*custom_callback*/,
base::BindOnce(MassageGetAuthTokenResults));
}
} // namespace extensions
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