зеркало из https://github.com/mozilla/gecko-dev.git
136 строки
4.3 KiB
C++
136 строки
4.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set sw=2 ts=8 et tw=80 : */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "mozilla/net/DNSRequestParent.h"
|
|
#include "nsIDNSService.h"
|
|
#include "nsNetCID.h"
|
|
#include "nsThreadUtils.h"
|
|
#include "nsIServiceManager.h"
|
|
#include "nsICancelable.h"
|
|
#include "nsIDNSRecord.h"
|
|
#include "nsHostResolver.h"
|
|
#include "mozilla/Unused.h"
|
|
|
|
using namespace mozilla::ipc;
|
|
|
|
namespace mozilla {
|
|
namespace net {
|
|
|
|
DNSRequestParent::DNSRequestParent() : mFlags(0), mIPCClosed(false) {}
|
|
|
|
void DNSRequestParent::DoAsyncResolve(const nsACString& hostname,
|
|
const OriginAttributes& originAttributes,
|
|
uint32_t flags) {
|
|
nsresult rv;
|
|
mFlags = flags;
|
|
nsCOMPtr<nsIDNSService> dns = do_GetService(NS_DNSSERVICE_CONTRACTID, &rv);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsCOMPtr<nsIEventTarget> main = GetMainThreadEventTarget();
|
|
nsCOMPtr<nsICancelable> unused;
|
|
rv = dns->AsyncResolveNative(hostname, flags, this, main, originAttributes,
|
|
getter_AddRefs(unused));
|
|
}
|
|
|
|
if (NS_FAILED(rv) && !mIPCClosed) {
|
|
mIPCClosed = true;
|
|
Unused << SendLookupCompleted(DNSRequestResponse(rv));
|
|
}
|
|
}
|
|
|
|
mozilla::ipc::IPCResult DNSRequestParent::RecvCancelDNSRequest(
|
|
const nsCString& hostName, const uint16_t& type,
|
|
const OriginAttributes& originAttributes, const uint32_t& flags,
|
|
const nsresult& reason) {
|
|
nsresult rv;
|
|
nsCOMPtr<nsIDNSService> dns = do_GetService(NS_DNSSERVICE_CONTRACTID, &rv);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
if (type == nsIDNSService::RESOLVE_TYPE_DEFAULT) {
|
|
rv = dns->CancelAsyncResolveNative(hostName, flags, this, reason,
|
|
originAttributes);
|
|
} else {
|
|
rv = dns->CancelAsyncResolveByTypeNative(hostName, type, flags, this,
|
|
reason, originAttributes);
|
|
}
|
|
}
|
|
return IPC_OK();
|
|
}
|
|
|
|
mozilla::ipc::IPCResult DNSRequestParent::Recv__delete__() {
|
|
mIPCClosed = true;
|
|
return IPC_OK();
|
|
}
|
|
|
|
void DNSRequestParent::ActorDestroy(ActorDestroyReason why) {
|
|
// We may still have refcount>0 if DNS hasn't called our OnLookupComplete
|
|
// yet, but child process has crashed. We must not send any more msgs
|
|
// to child, or IPDL will kill chrome process, too.
|
|
mIPCClosed = true;
|
|
}
|
|
//-----------------------------------------------------------------------------
|
|
// DNSRequestParent::nsISupports
|
|
//-----------------------------------------------------------------------------
|
|
|
|
NS_IMPL_ISUPPORTS(DNSRequestParent, nsIDNSListener)
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// nsIDNSListener functions
|
|
//-----------------------------------------------------------------------------
|
|
|
|
NS_IMETHODIMP
|
|
DNSRequestParent::OnLookupComplete(nsICancelable* request, nsIDNSRecord* rec,
|
|
nsresult status) {
|
|
if (mIPCClosed) {
|
|
// nothing to do: child probably crashed
|
|
return NS_OK;
|
|
}
|
|
|
|
if (NS_SUCCEEDED(status)) {
|
|
MOZ_ASSERT(rec);
|
|
|
|
nsAutoCString cname;
|
|
if (mFlags & nsHostResolver::RES_CANON_NAME) {
|
|
rec->GetCanonicalName(cname);
|
|
}
|
|
|
|
// Get IP addresses for hostname (use port 80 as dummy value for NetAddr)
|
|
NetAddrArray array;
|
|
NetAddr addr;
|
|
while (NS_SUCCEEDED(rec->GetNextAddr(80, &addr))) {
|
|
array.AppendElement(addr);
|
|
}
|
|
|
|
Unused << SendLookupCompleted(DNSRequestResponse(DNSRecord(cname, array)));
|
|
} else {
|
|
Unused << SendLookupCompleted(DNSRequestResponse(status));
|
|
}
|
|
|
|
mIPCClosed = true;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DNSRequestParent::OnLookupByTypeComplete(nsICancelable* aRequest,
|
|
nsIDNSByTypeRecord* aRes,
|
|
nsresult aStatus) {
|
|
if (mIPCClosed) {
|
|
// nothing to do: child probably crashed
|
|
return NS_OK;
|
|
}
|
|
|
|
if (NS_SUCCEEDED(aStatus)) {
|
|
nsTArray<nsCString> rec;
|
|
aRes->GetRecords(rec);
|
|
Unused << SendLookupCompleted(DNSRequestResponse(rec));
|
|
} else {
|
|
Unused << SendLookupCompleted(DNSRequestResponse(aStatus));
|
|
}
|
|
mIPCClosed = true;
|
|
return NS_OK;
|
|
}
|
|
|
|
} // namespace net
|
|
} // namespace mozilla
|