Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 183 insertions, 0 deletions

diff --git a/netwerk/dns/DNSRequestParent.cpp b/netwerk/dns/DNSRequestParent.cpp
new file mode 100644
index 0000000000..09213b59ba
--- /dev/null
+++ b/netwerk/dns/DNSRequestParent.cpp
@@ -0,0 +1,183 @@
+/* -*- 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 "mozilla/net/DNSRequestChild.h"
+#include "nsIDNSService.h"
+#include "nsNetCID.h"
+#include "nsThreadUtils.h"
+#include "nsICancelable.h"
+#include "nsIDNSRecord.h"
+#include "nsHostResolver.h"
+#include "mozilla/Unused.h"
+#include "DNSAdditionalInfo.h"
+#include "nsServiceManagerUtils.h"
+
+using namespace mozilla::ipc;
+
+namespace mozilla {
+namespace net {
+
+//-----------------------------------------------------------------------------
+// DNSRequestHandler::nsISupports
+//-----------------------------------------------------------------------------
+
+NS_IMPL_ISUPPORTS(DNSRequestHandler, nsIDNSListener)
+
+static void SendLookupCompletedHelper(DNSRequestActor* aActor,
+                                      const DNSRequestResponse& aReply) {
+  if (DNSRequestParent* parent = aActor->AsDNSRequestParent()) {
+    Unused << parent->SendLookupCompleted(aReply);
+  } else if (DNSRequestChild* child = aActor->AsDNSRequestChild()) {
+    Unused << child->SendLookupCompleted(aReply);
+  }
+}
+
+void DNSRequestHandler::DoAsyncResolve(const nsACString& hostname,
+                                       const nsACString& trrServer,
+                                       int32_t port, uint16_t type,
+                                       const OriginAttributes& originAttributes,
+                                       nsIDNSService::DNSFlags flags) {
+  nsresult rv;
+  mFlags = flags;
+  nsCOMPtr<nsIDNSService> dns = do_GetService(NS_DNSSERVICE_CONTRACTID, &rv);
+  if (NS_SUCCEEDED(rv)) {
+    nsCOMPtr<nsIEventTarget> main = GetMainThreadSerialEventTarget();
+    nsCOMPtr<nsICancelable> unused;
+    RefPtr<DNSAdditionalInfo> info;
+    if (!trrServer.IsEmpty() || port != -1) {
+      info = new DNSAdditionalInfo(trrServer, port);
+    }
+    rv = dns->AsyncResolveNative(
+        hostname, static_cast<nsIDNSService::ResolveType>(type), flags, info,
+        this, main, originAttributes, getter_AddRefs(unused));
+  }
+
+  if (NS_FAILED(rv) && mIPCActor->CanSend()) {
+    SendLookupCompletedHelper(mIPCActor, DNSRequestResponse(rv));
+  }
+}
+
+void DNSRequestHandler::OnRecvCancelDNSRequest(
+    const nsCString& hostName, const nsCString& aTrrServer, const int32_t& port,
+    const uint16_t& type, const OriginAttributes& originAttributes,
+    const nsIDNSService::DNSFlags& flags, const nsresult& reason) {
+  nsresult rv;
+  nsCOMPtr<nsIDNSService> dns = do_GetService(NS_DNSSERVICE_CONTRACTID, &rv);
+  if (NS_SUCCEEDED(rv)) {
+    RefPtr<DNSAdditionalInfo> info;
+    if (!aTrrServer.IsEmpty() || port != -1) {
+      info = new DNSAdditionalInfo(aTrrServer, port);
+    }
+    rv = dns->CancelAsyncResolveNative(
+        hostName, static_cast<nsIDNSService::ResolveType>(type), flags, info,
+        this, reason, originAttributes);
+  }
+}
+
+bool DNSRequestHandler::OnRecvLookupCompleted(const DNSRequestResponse& reply) {
+  return true;
+}
+
+//-----------------------------------------------------------------------------
+// nsIDNSListener functions
+//-----------------------------------------------------------------------------
+
+NS_IMETHODIMP
+DNSRequestHandler::OnLookupComplete(nsICancelable* request,
+                                    nsIDNSRecord* aRecord, nsresult status) {
+  if (!mIPCActor || !mIPCActor->CanSend()) {
+    // nothing to do: child probably crashed
+    return NS_OK;
+  }
+
+  if (NS_SUCCEEDED(status)) {
+    MOZ_ASSERT(aRecord);
+
+    nsCOMPtr<nsIDNSByTypeRecord> byTypeRec = do_QueryInterface(aRecord);
+    if (byTypeRec) {
+      IPCTypeRecord result;
+      byTypeRec->GetResults(&result.mData);
+      if (nsCOMPtr<nsIDNSHTTPSSVCRecord> rec = do_QueryInterface(aRecord)) {
+        rec->GetTtl(&result.mTTL);
+      }
+      SendLookupCompletedHelper(mIPCActor, DNSRequestResponse(result));
+      return NS_OK;
+    }
+
+    nsCOMPtr<nsIDNSAddrRecord> rec = do_QueryInterface(aRecord);
+    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)
+    nsTArray<NetAddr> array;
+    NetAddr addr;
+    while (NS_SUCCEEDED(rec->GetNextAddr(80, &addr))) {
+      array.AppendElement(addr);
+    }
+
+    double trrFetchDuration;
+    rec->GetTrrFetchDuration(&trrFetchDuration);
+
+    double trrFetchDurationNetworkOnly;
+    rec->GetTrrFetchDurationNetworkOnly(&trrFetchDurationNetworkOnly);
+
+    bool isTRR = false;
+    rec->IsTRR(&isTRR);
+
+    nsIRequest::TRRMode effectiveTRRMode = nsIRequest::TRR_DEFAULT_MODE;
+    rec->GetEffectiveTRRMode(&effectiveTRRMode);
+
+    uint32_t ttl = 0;
+    rec->GetTtl(&ttl);
+
+    SendLookupCompletedHelper(
+        mIPCActor, DNSRequestResponse(DNSRecord(cname, array, trrFetchDuration,
+                                                trrFetchDurationNetworkOnly,
+                                                isTRR, effectiveTRRMode, ttl)));
+  } else {
+    SendLookupCompletedHelper(mIPCActor, DNSRequestResponse(status));
+  }
+
+  return NS_OK;
+}
+
+void DNSRequestHandler::OnIPCActorDestroy() { mIPCActor = nullptr; }
+
+//-----------------------------------------------------------------------------
+// DNSRequestParent functions
+//-----------------------------------------------------------------------------
+
+DNSRequestParent::DNSRequestParent(DNSRequestBase* aRequest)
+    : DNSRequestActor(aRequest) {
+  aRequest->SetIPCActor(this);
+}
+
+mozilla::ipc::IPCResult DNSRequestParent::RecvCancelDNSRequest(
+    const nsCString& hostName, const nsCString& trrServer, const int32_t& port,
+    const uint16_t& type, const OriginAttributes& originAttributes,
+    const nsIDNSService::DNSFlags& flags, const nsresult& reason) {
+  mDNSRequest->OnRecvCancelDNSRequest(hostName, trrServer, port, type,
+                                      originAttributes, flags, reason);
+  return IPC_OK();
+}
+
+mozilla::ipc::IPCResult DNSRequestParent::RecvLookupCompleted(
+    const DNSRequestResponse& reply) {
+  return mDNSRequest->OnRecvLookupCompleted(reply) ? IPC_OK()
+                                                   : IPC_FAIL_NO_REASON(this);
+}
+
+void DNSRequestParent::ActorDestroy(ActorDestroyReason) {
+  mDNSRequest->OnIPCActorDestroy();
+  mDNSRequest = nullptr;
+}
+
+}  // namespace net
+}  // namespace mozilla