blob: 16333aa71ae94ff49db2138dcd971b28fde279b0 [file] [log] [blame]
// Copyright 2013 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 "chrome/tools/service_discovery_sniffer/service_discovery_sniffer.h"
#include <memory>
#include <vector>
#include "base/at_exit.h"
#include "base/bind.h"
#include "base/message_loop/message_pump_type.h"
#include "base/run_loop.h"
#include "base/task/single_thread_task_executor.h"
#include "chrome/browser/local_discovery/service_discovery_client_impl.h"
#include "net/dns/mdns_client.h"
namespace local_discovery {
ServicePrinter::ServicePrinter(ServiceDiscoveryClient* client,
const std::string& service_name)
: changed_(false) {
service_resolver_ = client->CreateServiceResolver(
service_name, base::BindOnce(&ServicePrinter::OnServiceResolved,
base::Unretained(this)));
}
ServicePrinter::~ServicePrinter() = default;
void ServicePrinter::Added() {
changed_ = false;
service_resolver_->StartResolving();
}
void ServicePrinter::Changed() {
changed_ = true;
service_resolver_->StartResolving();
}
void ServicePrinter::Removed() {
printf("Service Removed: %s\n", service_resolver_->GetName().c_str());
}
void ServicePrinter::OnServiceResolved(ServiceResolver::RequestStatus status,
const ServiceDescription& service) {
if (changed_) {
printf("Service Updated: %s\n", service.instance_name().c_str());
} else {
printf("Service Added: %s\n", service.instance_name().c_str());
}
printf("\tAddress: %s:%d\n", service.address.host().c_str(),
service.address.port());
printf("\tMetadata: \n");
for (std::vector<std::string>::const_iterator i = service.metadata.begin();
i != service.metadata.end(); i++) {
printf("\t\t%s\n", i->c_str());
}
if (service.ip_address.IsValid()) {
printf("\tIP Address: %s\n", service.ip_address.ToString().c_str());
}
}
ServiceTypePrinter::ServiceTypePrinter(ServiceDiscoveryClient* client,
const std::string& service_type)
: client_(client) {
watcher_ = client_->CreateServiceWatcher(
service_type, base::Bind(&ServiceTypePrinter::OnServiceUpdated,
base::Unretained(this)));
}
void ServiceTypePrinter::Start() {
watcher_->Start();
watcher_->DiscoverNewServices();
}
ServiceTypePrinter::~ServiceTypePrinter() {
}
void ServiceTypePrinter::OnServiceUpdated(ServiceWatcher::UpdateType update,
const std::string& service_name) {
if (update == ServiceWatcher::UPDATE_ADDED) {
services_[service_name] =
std::make_unique<ServicePrinter>(client_, service_name);
services_[service_name]->Added();
} else if (update == ServiceWatcher::UPDATE_CHANGED) {
services_[service_name]->Changed();
} else if (update == ServiceWatcher::UPDATE_REMOVED) {
services_[service_name]->Removed();
services_.erase(service_name);
}
}
} // namespace local_discovery
int main(int argc, char** argv) {
base::AtExitManager at_exit_manager;
base::SingleThreadTaskExecutor io_task_executor(base::MessagePumpType::IO);
if (argc != 2) {
printf("Please provide exactly 1 argument.\n");
return 1;
}
std::unique_ptr<net::MDnsClient> mdns_client =
net::MDnsClient::CreateDefault();
std::unique_ptr<net::MDnsSocketFactory> socket_factory =
net::MDnsSocketFactory::CreateDefault();
mdns_client->StartListening(socket_factory.get());
std::unique_ptr<local_discovery::ServiceDiscoveryClient>
service_discovery_client;
service_discovery_client.reset(
new local_discovery::ServiceDiscoveryClientImpl(mdns_client.get()));
{
// To guarantee/make explicit the ordering constraint.
local_discovery::ServiceTypePrinter print_changes(
service_discovery_client.get(),
std::string(argv[1]) + "._tcp.local");
print_changes.Start();
base::RunLoop().Run();
}
}