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// Copyright 2014 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/browser/local_discovery/privet_http_asynchronous_factory_impl.h"
#include "base/bind.h"
#include "base/command_line.h"
#include "base/strings/stringprintf.h"
#include "chrome/browser/local_discovery/privet_http_impl.h"
#include "chrome/browser/local_discovery/service_discovery_shared_client.h"
#include "chrome/common/chrome_switches.h"
#include "net/base/net_util.h"
namespace local_discovery {
namespace {
std::string IPAddressToHostString(const net::IPAddressNumber& address) {
std::string address_str = net::IPAddressToString(address);
// IPv6 addresses need to be surrounded by brackets.
if (address.size() == net::kIPv6AddressSize) {
address_str = base::StringPrintf("[%s]", address_str.c_str());
}
return address_str;
}
} // namespace
PrivetHTTPAsynchronousFactoryImpl::PrivetHTTPAsynchronousFactoryImpl(
net::URLRequestContextGetter* request_context)
: request_context_(request_context) {
}
PrivetHTTPAsynchronousFactoryImpl::~PrivetHTTPAsynchronousFactoryImpl() {
}
scoped_ptr<PrivetHTTPResolution>
PrivetHTTPAsynchronousFactoryImpl::CreatePrivetHTTP(
const std::string& service_name) {
return scoped_ptr<PrivetHTTPResolution>(
new ResolutionImpl(service_name, request_context_.get()));
}
PrivetHTTPAsynchronousFactoryImpl::ResolutionImpl::ResolutionImpl(
const std::string& service_name,
net::URLRequestContextGetter* request_context)
: name_(service_name), request_context_(request_context) {
service_discovery_client_ = ServiceDiscoverySharedClient::GetInstance();
}
PrivetHTTPAsynchronousFactoryImpl::ResolutionImpl::~ResolutionImpl() {
}
const std::string&
PrivetHTTPAsynchronousFactoryImpl::ResolutionImpl::GetName() {
return name_;
}
void PrivetHTTPAsynchronousFactoryImpl::ResolutionImpl::Start(
const ResultCallback& callback) {
service_resolver_ = service_discovery_client_->CreateServiceResolver(
name_, base::Bind(&ResolutionImpl::ServiceResolveComplete,
base::Unretained(this), callback));
service_resolver_->StartResolving();
}
void PrivetHTTPAsynchronousFactoryImpl::ResolutionImpl::ServiceResolveComplete(
const ResultCallback& callback,
ServiceResolver::RequestStatus result,
const ServiceDescription& description) {
if (result != ServiceResolver::STATUS_SUCCESS)
return callback.Run(scoped_ptr<PrivetHTTPClient>());
Start(description.address, callback);
}
void PrivetHTTPAsynchronousFactoryImpl::ResolutionImpl::Start(
const net::HostPortPair& address,
const ResultCallback& callback) {
#if defined(OS_MACOSX)
net::IPAddressNumber ip_address;
DCHECK(net::ParseIPLiteralToNumber(address.host(), &ip_address));
// MAC already has IP there.
callback.Run(scoped_ptr<PrivetHTTPClient>(
new PrivetHTTPClientImpl(name_, address, request_context_.get())));
#else // OS_MACOSX
net::AddressFamily address_family = net::ADDRESS_FAMILY_UNSPECIFIED;
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kPrivetIPv6Only)) {
address_family = net::ADDRESS_FAMILY_IPV6;
}
domain_resolver_ = service_discovery_client_->CreateLocalDomainResolver(
address.host(), address_family,
base::Bind(&ResolutionImpl::DomainResolveComplete, base::Unretained(this),
address.port(), callback));
domain_resolver_->Start();
#endif // OS_MACOSX
}
void PrivetHTTPAsynchronousFactoryImpl::ResolutionImpl::DomainResolveComplete(
uint16 port,
const ResultCallback& callback,
bool success,
const net::IPAddressNumber& address_ipv4,
const net::IPAddressNumber& address_ipv6) {
if (!success) {
callback.Run(scoped_ptr<PrivetHTTPClient>());
return;
}
net::IPAddressNumber address = address_ipv4;
if (address.empty())
address = address_ipv6;
DCHECK(!address.empty());
net::HostPortPair new_address =
net::HostPortPair(IPAddressToHostString(address), port);
callback.Run(scoped_ptr<PrivetHTTPClient>(
new PrivetHTTPClientImpl(name_, new_address, request_context_.get())));
}
} // namespace local_discovery
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