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// Copyright 2018 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 "headless/lib/browser/protocol/headless_devtools_session.h"
#include "base/command_line.h"
#include "content/public/browser/devtools_agent_host.h"
#include "content/public/browser/devtools_agent_host_client.h"
#include "content/public/common/content_switches.h"
#include "headless/lib/browser/protocol/browser_handler.h"
#include "headless/lib/browser/protocol/headless_handler.h"
#include "headless/lib/browser/protocol/page_handler.h"
#include "headless/lib/browser/protocol/target_handler.h"
namespace headless {
namespace protocol {
static bool EnableInternalDevToolsBinaryProtocol() {
static bool disabled = base::CommandLine::ForCurrentProcess()->HasSwitch(
::switches::kDisableInternalDevToolsBinaryProtocol);
return !disabled;
}
HeadlessDevToolsSession::HeadlessDevToolsSession(
base::WeakPtr<HeadlessBrowserImpl> browser,
content::DevToolsAgentHost* agent_host,
content::DevToolsAgentHostClient* client)
: browser_(browser),
agent_host_(agent_host),
client_(client),
dispatcher_(std::make_unique<UberDispatcher>(this)) {
if (agent_host->GetWebContents() &&
agent_host->GetType() == content::DevToolsAgentHost::kTypePage) {
AddHandler(std::make_unique<HeadlessHandler>(browser_,
agent_host->GetWebContents()));
AddHandler(
std::make_unique<PageHandler>(browser_, agent_host->GetWebContents()));
}
if (client->MayAttachToBrowser())
AddHandler(std::make_unique<BrowserHandler>(browser_, agent_host->GetId()));
AddHandler(std::make_unique<TargetHandler>(browser_));
}
HeadlessDevToolsSession::~HeadlessDevToolsSession() {
dispatcher_.reset();
for (auto& pair : handlers_)
pair.second->Disable();
handlers_.clear();
}
void HeadlessDevToolsSession::HandleCommand(
const std::string& method,
const std::string& message,
content::DevToolsManagerDelegate::NotHandledCallback callback) {
if (!browser_ || !dispatcher_->canDispatch(method)) {
std::move(callback).Run(message);
return;
}
int call_id;
std::string unused;
std::unique_ptr<protocol::DictionaryValue> value =
protocol::DictionaryValue::cast(protocol::StringUtil::parseMessage(
message, client_->UsesBinaryProtocol() ||
EnableInternalDevToolsBinaryProtocol()));
if (!dispatcher_->parseCommand(value.get(), &call_id, &unused))
return;
pending_commands_[call_id] = std::move(callback);
dispatcher_->dispatch(call_id, method, std::move(value), message);
}
void HeadlessDevToolsSession::AddHandler(
std::unique_ptr<protocol::DomainHandler> handler) {
handler->Wire(dispatcher_.get());
handlers_[handler->name()] = std::move(handler);
}
void HeadlessDevToolsSession::sendProtocolResponse(
int call_id,
std::unique_ptr<Serializable> message) {
pending_commands_.erase(call_id);
bool binary = client_->UsesBinaryProtocol();
client_->DispatchProtocolMessage(agent_host_, message->serialize(binary));
}
void HeadlessDevToolsSession::fallThrough(int call_id,
const std::string& method,
const std::string& message) {
auto callback = std::move(pending_commands_[call_id]);
pending_commands_.erase(call_id);
std::move(callback).Run(message);
}
void HeadlessDevToolsSession::sendProtocolNotification(
std::unique_ptr<Serializable> message) {
bool binary = client_->UsesBinaryProtocol();
client_->DispatchProtocolMessage(agent_host_, message->serialize(binary));
}
void HeadlessDevToolsSession::flushProtocolNotifications() {}
} // namespace protocol
} // namespace headless
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