Exposed Listen and Accept methods to plugin.

content/browser/renderer_host/pepper_tcp_server_socket.cc

+// Copyright (c) 2012 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 "content/browser/renderer_host/pepper_tcp_server_socket.h"
+
+#include <cstddef>
+
+#include "base/logging.h"
+#include "content/browser/renderer_host/pepper_message_filter.h"
+#include "content/public/browser/browser_thread.h"
+#include "net/base/ip_endpoint.h"
+#include "net/base/net_errors.h"
+#include "net/socket/tcp_client_socket.h"
+#include "net/socket/tcp_server_socket.h"
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/proxy/ppapi_messages.h"
+#include "ppapi/shared_impl/private/net_address_private_impl.h"
+
+using content::BrowserThread;
+using ppapi::NetAddressPrivateImpl;
+
+PepperTCPServerSocket::PepperTCPServerSocket(
+    PepperMessageFilter* manager,
+    int32 routing_id,
+    uint32 plugin_dispatcher_id,
+    uint32 real_socket_id,
+    uint32 temp_socket_id)
+    : manager_(manager),
+      routing_id_(routing_id),
+      plugin_dispatcher_id_(plugin_dispatcher_id),
+      real_socket_id_(real_socket_id),
+      temp_socket_id_(temp_socket_id),
+      state_(BEFORE_LISTENING) {
+  DCHECK(manager);
+}
+
+PepperTCPServerSocket::~PepperTCPServerSocket() {
+}
+
+void PepperTCPServerSocket::Listen(const PP_NetAddress_Private& addr,
+                                   int32 backlog) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+
+  net::IPEndPoint ip_end_point;
+  if (state_ != BEFORE_LISTENING ||
+      !NetAddressPrivateImpl::NetAddressToIPEndPoint(addr, &ip_end_point)) {
+    CancelListenRequest();
+    return;
+  }
+
+  state_ = LISTEN_IN_PROGRESS;
+
+  socket_.reset(new net::TCPServerSocket(NULL, net::NetLog::Source()));
+  int result = socket_->Listen(ip_end_point, backlog);
+  if (result != net::ERR_IO_PENDING)
+    OnListenCompleted(result);
+}
+
+void PepperTCPServerSocket::Accept() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+
+  if (state_ != LISTENING) {
+    SendAcceptACKError();
+    return;
+  }
+
+  state_ = ACCEPT_IN_PROGRESS;
+
+  int result = socket_->Accept(
+      &socket_buffer_,
+      base::Bind(&PepperTCPServerSocket::OnAcceptCompleted,
+                 base::Unretained(this)));
+  if (result != net::ERR_IO_PENDING)
+    OnAcceptCompleted(result);
+}
+
+void PepperTCPServerSocket::CancelListenRequest() {
+  manager_->Send(new PpapiMsg_PPBTCPServerSocket_ListenACK(
+      routing_id_,
+      plugin_dispatcher_id_,
+      real_socket_id_,

[yzshen1, 2012/02/14 00:42:04]

Can we send 0 instead of |real_socket_id_| to the render/plugin?

[ygorshenin1, 2012/02/14 09:34:44]

Yes, You're right, it's better to send zero in the case of failure.

On 2012/02/14 00:42:04, yzshen1 wrote:

+      temp_socket_id_,
+      PP_ERROR_FAILED));
+  BrowserThread::PostTask(
+      BrowserThread::IO,
+      FROM_HERE,
+      base::Bind(&PepperMessageFilter::RemoveTCPServerSocket, manager_,
+                 real_socket_id_));
+}
+
+void PepperTCPServerSocket::SendAcceptACKError() {
+  manager_->Send(new PpapiMsg_PPBTCPServerSocket_AcceptACK(
+      routing_id_,
+      plugin_dispatcher_id_,
+      real_socket_id_,
+      0,
+      NetAddressPrivateImpl::kInvalidNetAddress,
+      NetAddressPrivateImpl::kInvalidNetAddress));
+}
+
+void PepperTCPServerSocket::OnListenCompleted(int result) {
+  DCHECK(state_ == LISTEN_IN_PROGRESS && socket_.get());
+
+  if (result != net::OK) {
+    CancelListenRequest();
+  } else {
+    manager_->Send(new PpapiMsg_PPBTCPServerSocket_ListenACK(
+        routing_id_,
+        plugin_dispatcher_id_,
+        real_socket_id_,
+        temp_socket_id_,
+        PP_OK));
+    state_ = LISTENING;
+  }
+}
+
+void PepperTCPServerSocket::OnAcceptCompleted(int result) {
+  DCHECK(state_ == ACCEPT_IN_PROGRESS && socket_buffer_.get());
+
+  if (result != net::OK) {
+    SendAcceptACKError();
+  } else {
+    scoped_ptr<net::StreamSocket> socket(socket_buffer_.release());
+
+    net::IPEndPoint ip_end_point;
+    net::AddressList address_list;
+    PP_NetAddress_Private local_addr =
+        NetAddressPrivateImpl::kInvalidNetAddress;
+    PP_NetAddress_Private remote_addr =
+        NetAddressPrivateImpl::kInvalidNetAddress;
+
+    if (socket->GetLocalAddress(&ip_end_point) != net::OK ||
+        !NetAddressPrivateImpl::IPEndPointToNetAddress(ip_end_point,
+                                                       &local_addr) ||
+        socket->GetPeerAddress(&address_list) != net::OK ||
+        !NetAddressPrivateImpl::AddressListToNetAddress(address_list,
+                                                        &remote_addr)) {
+      SendAcceptACKError();
+    } else {
+      uint32 accepted_socket_id =
+          manager_->AddAcceptedTCPSocket(routing_id_,
+                                         plugin_dispatcher_id_,
+                                         socket.release());
+      if (accepted_socket_id != 0) {
+        manager_->Send(new PpapiMsg_PPBTCPServerSocket_AcceptACK(
+            routing_id_,
+            plugin_dispatcher_id_,
+            real_socket_id_,
+            accepted_socket_id,
+            local_addr,
+            remote_addr));
+      } else {
+        SendAcceptACKError();
+      }
+    }
+  }
+
+  state_ = LISTENING;
+}