1effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch// Copyright 2014 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch#include "extensions/browser/api/dns/dns_api.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/bind.h" 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/values.h" 9effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch#include "content/public/browser/browser_context.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/browser/browser_thread.h" 11effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch#include "content/public/browser/resource_context.h" 12effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch#include "extensions/browser/api/dns/host_resolver_wrapper.h" 13effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch#include "extensions/common/api/dns.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/host_port_pair.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/net_errors.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/net_log.h" 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using content::BrowserThread; 19effb81e5f8246d0db0270817048dc992db66e9fbBen Murdochusing extensions::core_api::dns::ResolveCallbackResolveInfo; 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 21effb81e5f8246d0db0270817048dc992db66e9fbBen Murdochnamespace Resolve = extensions::core_api::dns::Resolve; 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace extensions { 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)DnsResolveFunction::DnsResolveFunction() 26effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch : resource_context_(NULL), 27effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch response_(false), 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) request_handle_(new net::HostResolver::RequestHandle()), 29effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch addresses_(new net::AddressList) {} 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)DnsResolveFunction::~DnsResolveFunction() {} 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 33010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles)bool DnsResolveFunction::RunAsync() { 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_ptr<Resolve::Params> params(Resolve::Params::Create(*args_)); 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) EXTENSION_FUNCTION_VALIDATE(params.get()); 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) hostname_ = params->hostname; 38effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch resource_context_ = browser_context()->GetResourceContext(); 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool result = BrowserThread::PostTask( 41effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch BrowserThread::IO, 42effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch FROM_HERE, 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::Bind(&DnsResolveFunction::WorkOnIOThread, this)); 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(result); 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void DnsResolveFunction::WorkOnIOThread() { 49effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch DCHECK_CURRENTLY_ON(BrowserThread::IO); 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) net::HostResolver* host_resolver = 525f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) HostResolverWrapper::GetInstance()->GetHostResolver(resource_context_); 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(host_resolver); 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Yes, we are passing zero as the port. There are some interesting but not 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // presently relevant reasons why HostResolver asks for the port of the 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // hostname you'd like to resolve, even though it doesn't use that value in 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // determining its answer. 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) net::HostPortPair host_port_pair(hostname_, 0); 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) net::HostResolver::RequestInfo request_info(host_port_pair); 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int resolve_result = host_resolver->Resolve( 633551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) request_info, 643551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) net::DEFAULT_PRIORITY, 653551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) addresses_.get(), 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::Bind(&DnsResolveFunction::OnLookupFinished, this), 673551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) request_handle_.get(), 683551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) net::BoundNetLog()); 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Balanced in OnLookupFinished. 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddRef(); 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (resolve_result != net::ERR_IO_PENDING) 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) OnLookupFinished(resolve_result); 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void DnsResolveFunction::RespondOnUIThread() { 78effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch DCHECK_CURRENTLY_ON(BrowserThread::UI); 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SendResponse(response_); 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void DnsResolveFunction::OnLookupFinished(int resolve_result) { 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_ptr<ResolveCallbackResolveInfo> resolve_info( 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) new ResolveCallbackResolveInfo()); 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) resolve_info->result_code = resolve_result; 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (resolve_result == net::OK) { 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!addresses_->empty()); 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) resolve_info->address.reset( 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) new std::string(addresses_->front().ToStringWithoutPort())); 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) results_ = Resolve::Results::Create(*resolve_info); 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) response_ = true; 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool post_task_result = BrowserThread::PostTask( 95effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch BrowserThread::UI, 96effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch FROM_HERE, 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::Bind(&DnsResolveFunction::RespondOnUIThread, this)); 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(post_task_result); 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Release(); // Added in WorkOnIOThread(). 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace extensions 104