1 files changed, 99 insertions, 0 deletions
diff --git a/netwerk/ipc/ProxyConfigLookup.cpp b/netwerk/ipc/ProxyConfigLookup.cpp
new file mode 100644
index 0000000000..29ce74091d
--- /dev/null
+++ b/netwerk/ipc/ProxyConfigLookup.cpp
@@ -0,0 +1,99 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 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 "ProxyConfigLookup.h"
+#include "ProxyConfigLookupChild.h"
+#include "mozilla/Unused.h"
+#include "nsContentUtils.h"
+#include "nsICancelable.h"
+#include "nsIProtocolProxyService.h"
+#include "nsIProtocolProxyService2.h"
+#include "nsNetUtil.h"
+#include "nsThreadUtils.h"
+#include "nsIChannel.h"
+
+namespace mozilla {
+namespace net {
+
+// static
+nsresult ProxyConfigLookup::Create(
+    std::function<void(nsIProxyInfo*, nsresult)>&& aCallback, nsIURI* aURI,
+    uint32_t aProxyResolveFlags, nsICancelable** aLookupCancellable) {
+  MOZ_ASSERT(NS_IsMainThread());
+
+  RefPtr<ProxyConfigLookup> lookUp =
+      new ProxyConfigLookup(std::move(aCallback), aURI, aProxyResolveFlags);
+  return lookUp->DoProxyResolve(aLookupCancellable);
+}
+
+ProxyConfigLookup::ProxyConfigLookup(
+    std::function<void(nsIProxyInfo*, nsresult)>&& aCallback, nsIURI* aURI,
+    uint32_t aProxyResolveFlags)
+    : mCallback(std::move(aCallback)),
+      mURI(aURI),
+      mProxyResolveFlags(aProxyResolveFlags) {}
+
+ProxyConfigLookup::~ProxyConfigLookup() = default;
+
+nsresult ProxyConfigLookup::DoProxyResolve(nsICancelable** aLookupCancellable) {
+  if (!XRE_IsParentProcess()) {
+    RefPtr<ProxyConfigLookup> self = this;
+    bool result = ProxyConfigLookupChild::Create(
+        mURI, mProxyResolveFlags,
+        [self](nsIProxyInfo* aProxyinfo, nsresult aResult) {
+          self->OnProxyAvailable(nullptr, nullptr, aProxyinfo, aResult);
+        });
+    return result ? NS_OK : NS_ERROR_FAILURE;
+  }
+
+  nsresult rv;
+  nsCOMPtr<nsIChannel> channel;
+  rv = NS_NewChannel(getter_AddRefs(channel), mURI,
+                     nsContentUtils::GetSystemPrincipal(),
+                     nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_SEC_CONTEXT_IS_NULL,
+                     nsIContentPolicy::TYPE_OTHER);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  nsCOMPtr<nsIProtocolProxyService> pps =
+      do_GetService(NS_PROTOCOLPROXYSERVICE_CONTRACTID, &rv);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  // using the nsIProtocolProxyService2 allows a minor performance
+  // optimization, but if an add-on has only provided the original interface
+  // then it is ok to use that version.
+  nsCOMPtr<nsICancelable> proxyRequest;
+  nsCOMPtr<nsIProtocolProxyService2> pps2 = do_QueryInterface(pps);
+  if (pps2) {
+    rv = pps2->AsyncResolve2(channel, mProxyResolveFlags, this, nullptr,
+                             getter_AddRefs(proxyRequest));
+  } else {
+    rv = pps->AsyncResolve(channel, mProxyResolveFlags, this, nullptr,
+                           getter_AddRefs(proxyRequest));
+  }
+
+  if (aLookupCancellable) {
+    proxyRequest.forget(aLookupCancellable);
+  }
+
+  return rv;
+}
+
+NS_IMETHODIMP ProxyConfigLookup::OnProxyAvailable(nsICancelable* aRequest,
+                                                  nsIChannel* aChannel,
+                                                  nsIProxyInfo* aProxyinfo,
+                                                  nsresult aResult) {
+  mCallback(aProxyinfo, aResult);
+  return NS_OK;
+}
+
+NS_IMPL_ISUPPORTS(ProxyConfigLookup, nsIProtocolProxyCallback)
+
+}  // namespace net
+}  // namespace mozilla