git.sesse.net Git - casparcg/blob - protocol/util/strategy_adapters.cpp

   1 /*\r
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 * This file is part of CasparCG (www.casparcg.com).\r
   5 *\r
   6 * CasparCG is free software: you can redistribute it and/or modify\r
   7 * it under the terms of the GNU General Public License as published by\r
   8 * the Free Software Foundation, either version 3 of the License, or\r
   9 * (at your option) any later version.\r
  10 *\r
  11 * CasparCG is distributed in the hope that it will be useful,\r
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  14 * GNU General Public License for more details.\r
  15 *\r
  16 * You should have received a copy of the GNU General Public License\r
  17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.\r
  18 *\r
  19 * Author: Helge Norberg, helge.norberg@svt.se\r
  20 */\r
  21 \r
  22 #include "../StdAfx.h"\r
  23 \r
  24 #include "strategy_adapters.h"\r
  25 \r
  26 #include <boost/locale.hpp>\r
  27 #include <boost/algorithm/string/replace.hpp>\r
  28 \r
  29 namespace caspar { namespace IO {\r
  30 \r
  31 class to_unicode_adapter : public protocol_strategy<char>\r
  32 {\r
  33         std::string codepage_;\r
  34         protocol_strategy<wchar_t>::ptr unicode_strategy_;\r
  35 public:\r
  36         to_unicode_adapter(\r
  37                         const std::string& codepage, \r
  38                         const protocol_strategy<wchar_t>::ptr& unicode_strategy)\r
  39                 : codepage_(codepage)\r
  40                 , unicode_strategy_(unicode_strategy)\r
  41         {\r
  42         }\r
  43 \r
  44         void parse(const std::basic_string<char>& data) override\r
  45         {\r
  46                 auto utf_data = boost::locale::conv::to_utf<wchar_t>(data, codepage_);\r
  47 \r
  48                 unicode_strategy_->parse(utf_data);\r
  49         }\r
  50 };\r
  51 \r
  52 class from_unicode_client_connection : public client_connection<wchar_t>\r
  53 {\r
  54         client_connection<char>::ptr client_;\r
  55         std::string codepage_;\r
  56 public:\r
  57         from_unicode_client_connection(\r
  58                         const client_connection<char>::ptr& client, const std::string& codepage)\r
  59                 : client_(client)\r
  60                 , codepage_(codepage)\r
  61         {\r
  62                 CASPAR_LOG(trace) << "from_unicode_client_connection created.";\r
  63         }\r
  64         ~from_unicode_client_connection()\r
  65         {\r
  66                 CASPAR_LOG(trace) << "from_unicode_client_connection destroyed.";\r
  67         }\r
  68 \r
  69         void send(std::basic_string<wchar_t>&& data) override\r
  70         {\r
  71                 auto str = boost::locale::conv::from_utf<wchar_t>(data, codepage_);\r
  72 \r
  73                 client_->send(std::move(str));\r
  74 \r
  75                 if (data.length() < 512)\r
  76                 {\r
  77                         boost::replace_all(data, L"\n", L"\\n");\r
  78                         boost::replace_all(data, L"\r", L"\\r");\r
  79                         CASPAR_LOG(info) << L"Sent message to " << client_->address() << L":" << data;\r
  80                 }\r
  81                 else\r
  82                         CASPAR_LOG(info) << L"Sent more than 512 bytes to " << client_->address();\r
  83         }\r
  84 \r
  85         void disconnect() override\r
  86         {\r
  87                 client_->disconnect();\r
  88         }\r
  89 \r
  90         std::wstring address() const override\r
  91         {\r
  92                 return client_->address();\r
  93         }\r
  94 \r
  95         void add_lifecycle_bound_object(const std::wstring& key, const std::shared_ptr<void>& lifecycle_bound) override\r
  96         {\r
  97                 client_->add_lifecycle_bound_object(key, lifecycle_bound);\r
  98         }\r
  99         std::shared_ptr<void> remove_lifecycle_bound_object(const std::wstring& key) override\r
 100         {\r
 101                 return client_->remove_lifecycle_bound_object(key);\r
 102         }\r
 103 };\r
 104 \r
 105 to_unicode_adapter_factory::to_unicode_adapter_factory(\r
 106                 const std::string& codepage, \r
 107                 const protocol_strategy_factory<wchar_t>::ptr& unicode_strategy_factory)\r
 108         : codepage_(codepage)\r
 109         , unicode_strategy_factory_(unicode_strategy_factory)\r
 110 {\r
 111 }\r
 112 \r
 113 protocol_strategy<char>::ptr to_unicode_adapter_factory::create(\r
 114         const client_connection<char>::ptr& client_connection)\r
 115 {\r
 116         auto client = spl::make_shared<from_unicode_client_connection>(client_connection, codepage_);\r
 117 \r
 118         return spl::make_shared<to_unicode_adapter>(codepage_, unicode_strategy_factory_->create(client));\r
 119 }\r
 120 \r
 121 class legacy_strategy_adapter : public protocol_strategy<wchar_t>\r
 122 {\r
 123         ProtocolStrategyPtr strategy_;\r
 124         ClientInfoPtr client_info_;\r
 125 public:\r
 126         legacy_strategy_adapter(\r
 127                         const ProtocolStrategyPtr& strategy, \r
 128                         const client_connection<wchar_t>::ptr& client_connection)\r
 129                 : strategy_(strategy)\r
 130                 , client_info_(client_connection)\r
 131         {\r
 132                 CASPAR_LOG(trace) << "legacy_strategy_adapter created.";\r
 133         }\r
 134         ~legacy_strategy_adapter()\r
 135         {\r
 136                 CASPAR_LOG(trace) << "legacy_strategy_adapter destroyed.";\r
 137         }\r
 138 \r
 139         void parse(const std::basic_string<wchar_t>& data) override\r
 140         {\r
 141                 strategy_->Parse(data, client_info_);\r
 142         }\r
 143 };\r
 144 \r
 145 legacy_strategy_adapter_factory::legacy_strategy_adapter_factory(\r
 146                 const ProtocolStrategyPtr& strategy)\r
 147         : strategy_(strategy)\r
 148 {\r
 149 }\r
 150 \r
 151 protocol_strategy<wchar_t>::ptr legacy_strategy_adapter_factory::create(\r
 152                 const client_connection<wchar_t>::ptr& client_connection)\r
 153 {\r
 154         return spl::make_shared<legacy_strategy_adapter>(strategy_, client_connection);\r
 155 }\r
 156 \r
 157 protocol_strategy_factory<char>::ptr wrap_legacy_protocol(\r
 158                 const std::string& delimiter, \r
 159                 const ProtocolStrategyPtr& strategy)\r
 160 {\r
 161         return spl::make_shared<delimiter_based_chunking_strategy_factory<char>>(\r
 162                         delimiter,\r
 163                         spl::make_shared<to_unicode_adapter_factory>(\r
 164                                         strategy->GetCodepage(),\r
 165                                         spl::make_shared<legacy_strategy_adapter_factory>(strategy)));\r
 166 }\r
 167 \r
 168 }}\r