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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_HOST_RESOLVER_MESSAGE_FILTER_H_
      6 #define CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_HOST_RESOLVER_MESSAGE_FILTER_H_
      7 
      8 #include <string>
      9 #include <vector>
     10 
     11 #include "base/basictypes.h"
     12 #include "base/compiler_specific.h"
     13 #include "content/common/content_export.h"
     14 #include "content/public/common/process_type.h"
     15 #include "ppapi/c/pp_instance.h"
     16 #include "ppapi/host/resource_message_filter.h"
     17 
     18 struct PP_HostResolver_Private_Hint;
     19 struct PP_NetAddress_Private;
     20 
     21 namespace net {
     22 class AddressList;
     23 }
     24 
     25 namespace ppapi {
     26 struct HostPortPair;
     27 
     28 namespace host {
     29 struct HostMessageContext;
     30 }
     31 }
     32 
     33 namespace content {
     34 
     35 class BrowserPpapiHostImpl;
     36 class ResourceContext;
     37 
     38 class CONTENT_EXPORT PepperHostResolverMessageFilter
     39     : public ppapi::host::ResourceMessageFilter {
     40  public:
     41   PepperHostResolverMessageFilter(BrowserPpapiHostImpl* host,
     42                                   PP_Instance instance,
     43                                   bool private_api);
     44 
     45  protected:
     46   virtual ~PepperHostResolverMessageFilter();
     47 
     48  private:
     49   typedef std::vector<PP_NetAddress_Private> NetAddressList;
     50 
     51   // ppapi::host::ResourceMessageFilter overrides.
     52   virtual scoped_refptr<base::TaskRunner> OverrideTaskRunnerForMessage(
     53       const IPC::Message& message) OVERRIDE;
     54   virtual int32_t OnResourceMessageReceived(
     55       const IPC::Message& msg,
     56       ppapi::host::HostMessageContext* context) OVERRIDE;
     57 
     58   int32_t OnMsgResolve(const ppapi::host::HostMessageContext* context,
     59                        const ppapi::HostPortPair& host_port,
     60                        const PP_HostResolver_Private_Hint& hint);
     61 
     62   // Backend for OnMsgResolve(). Delegates host resolution to the
     63   // Browser's HostResolver. Must be called on the IO thread.
     64   void DoResolve(const ppapi::host::ReplyMessageContext& context,
     65                  const ppapi::HostPortPair& host_port,
     66                  const PP_HostResolver_Private_Hint& hint,
     67                  ResourceContext* resource_context);
     68 
     69   void OnLookupFinished(int net_result,
     70                         const net::AddressList& addresses,
     71                         const ppapi::host::ReplyMessageContext& bound_info);
     72   void SendResolveReply(int32_t result,
     73                         const std::string& canonical_name,
     74                         const NetAddressList& net_address_list,
     75                         const ppapi::host::ReplyMessageContext& context);
     76   void SendResolveError(int32_t error,
     77                         const ppapi::host::ReplyMessageContext& context);
     78 
     79   bool external_plugin_;
     80   bool private_api_;
     81   int render_process_id_;
     82   int render_view_id_;
     83 
     84   DISALLOW_COPY_AND_ASSIGN(PepperHostResolverMessageFilter);
     85 };
     86 
     87 }  // namespace content
     88 
     89 #endif  // CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_HOST_RESOLVER_MESSAGE_FILTER_H_
     90