Introduce PPB_HostResolver_Dev.

This change exposes the PPB_HostResolver_Dev interface and makes it to share the same backend as PPB_HostResolver_Private.

It doesn't include apps permission check, which will be implemented in separate CLs.

BUG=247225
TEST=newly added test_host_resolver.{h,cc}.

Review URL: https://chromiumcodereview.appspot.com/16727002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@206321 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 107 insertions, 0 deletions

diff --git a/ppapi/proxy/host_resolver_resource_base.cc b/ppapi/proxy/host_resolver_resource_base.cc
new file mode 100644
index 0000000..c4055a7
--- /dev/null
+++ b/ppapi/proxy/host_resolver_resource_base.cc
@@ -0,0 +1,107 @@
+// Copyright 2013 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 "ppapi/proxy/host_resolver_resource_base.h"
+
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/proxy/net_address_resource.h"
+#include "ppapi/proxy/ppapi_messages.h"
+#include "ppapi/shared_impl/tracked_callback.h"
+#include "ppapi/shared_impl/var.h"
+
+namespace ppapi {
+namespace proxy {
+
+HostResolverResourceBase::HostResolverResourceBase(Connection connection,
+                                                   PP_Instance instance)
+    : PluginResource(connection, instance),
+      allow_get_results_(false) {
+  SendCreate(BROWSER, PpapiHostMsg_HostResolverPrivate_Create());
+}
+
+HostResolverResourceBase::~HostResolverResourceBase() {
+}
+
+int32_t HostResolverResourceBase::ResolveImpl(
+    const char* host,
+    uint16_t port,
+    const PP_HostResolver_Private_Hint* hint,
+    scoped_refptr<TrackedCallback> callback) {
+  allow_get_results_ = false;
+  if (!host || !hint)
+    return PP_ERROR_BADARGUMENT;
+  if (ResolveInProgress())
+    return PP_ERROR_INPROGRESS;
+
+  resolve_callback_ = callback;
+
+  HostPortPair host_port;
+  host_port.host = host;
+  host_port.port = port;
+
+  SendResolve(host_port, hint);
+  return PP_OK_COMPLETIONPENDING;
+}
+
+PP_Var HostResolverResourceBase::GetCanonicalNameImpl() {
+  if (!allow_get_results_)
+    return PP_MakeUndefined();
+
+  return StringVar::StringToPPVar(canonical_name_);
+}
+
+uint32_t HostResolverResourceBase::GetSizeImpl() {
+  if (!allow_get_results_)
+    return 0;
+  return static_cast<uint32_t>(net_address_list_.size());
+}
+
+scoped_refptr<NetAddressResource> HostResolverResourceBase::GetNetAddressImpl(
+    uint32_t index) {
+  if (!allow_get_results_ || index >= GetSizeImpl())
+    return scoped_refptr<NetAddressResource>();
+
+  return net_address_list_[index];
+}
+
+void HostResolverResourceBase::OnPluginMsgResolveReply(
+    const ResourceMessageReplyParams& params,
+    const std::string& canonical_name,
+    const std::vector<PP_NetAddress_Private>& net_address_list) {
+  if (params.result() == PP_OK) {
+    allow_get_results_ = true;
+    canonical_name_ = canonical_name;
+
+    net_address_list_.clear();
+    for (std::vector<PP_NetAddress_Private>::const_iterator iter =
+             net_address_list.begin();
+         iter != net_address_list.end();
+         ++iter) {
+      net_address_list_.push_back(
+          new NetAddressResource(connection(), pp_instance(), *iter));
+    }
+  } else {
+    canonical_name_.clear();
+    net_address_list_.clear();
+  }
+  resolve_callback_->Run(params.result());
+}
+
+void HostResolverResourceBase::SendResolve(
+    const HostPortPair& host_port,
+    const PP_HostResolver_Private_Hint* hint) {
+  PpapiHostMsg_HostResolverPrivate_Resolve msg(host_port, *hint);
+  Call<PpapiPluginMsg_HostResolverPrivate_ResolveReply>(
+      BROWSER,
+      msg,
+      base::Bind(&HostResolverResourceBase::OnPluginMsgResolveReply,
+                 base::Unretained(this)));
+}
+
+bool HostResolverResourceBase::ResolveInProgress() const {
+  return TrackedCallback::IsPending(resolve_callback_);
+}
+
+}  // namespace proxy
+}  // namespace ppapi