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annotate plugins/links/requester.hpp @ 773:8c44bbcbbab9

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Misc: style, cleanup and update
author David Demelier <markand@malikania.fr>
date Fri, 26 Oct 2018 13:01:00 +0200
parents d8bf53170fb6
children d0bd19183743
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768
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1 /*
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2 * requester.hpp -- convenient HTTP get requester
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3 *
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4 * Copyright (c) 2013-2018 David Demelier <markand@malikania.fr>
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5 *
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6 * Permission to use, copy, modify, and/or distribute this software for any
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7 * purpose with or without fee is hereby granted, provided that the above
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8 * copyright notice and this permission notice appear in all copies.
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9 *
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 */
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18
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19 #ifndef IRCCD_REQUESTER_HPP
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20 #define IRCCD_REQUESTER_HPP
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21
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22 /**
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23 * \file requester.hpp
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24 * \brief Convenient HTTP get requester.
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25 */
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26
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27 #include <irccd/sysconfig.hpp>
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28
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29 #include <boost/beast.hpp>
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30 #include <boost/asio.hpp>
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31
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32 #if defined(IRCCD_HAVE_SSL)
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33 # include <boost/asio/ssl.hpp>
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34 #endif
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35
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36 #include <cstddef>
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37 #include <memory>
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38 #include <string>
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39 #include <system_error>
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40 #include <variant>
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41
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42 #include "uri.hpp"
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43
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44 namespace irccd {
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45
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46 class server;
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47
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48 /**
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49 * \brief Convenient HTTP get requester.
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50 */
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51 class requester : public std::enable_shared_from_this<requester> {
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52 private:
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53 std::variant<
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54 std::monostate,
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55 boost::asio::ip::tcp::socket
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56 #if defined(IRCCD_HAVE_SSL)
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57 , boost::asio::ssl::stream<boost::asio::ip::tcp::socket>
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58 #endif
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59 > socket_;
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60
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61 std::size_t level_{0U};
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62 std::shared_ptr<server> server_;
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63 std::string channel_;
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64 std::string origin_;
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65
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66 uri uri_;
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67
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68 #if defined(IRCCD_HAVE_SSL)
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69 boost::asio::ssl::context ctx_{boost::asio::ssl::context::sslv23};
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70 #endif
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71
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72 boost::beast::flat_buffer buffer_;
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73 boost::beast::http::request<boost::beast::http::empty_body> req_;
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74 boost::beast::http::response<boost::beast::http::string_body> res_;
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75 boost::asio::deadline_timer timer_;
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76 boost::asio::ip::tcp::resolver resolver_;
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77
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78 void notify(const std::string&);
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79 void parse();
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80 void handle_read(const std::error_code&);
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81 void read();
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82 void handle_write(const std::error_code&);
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83 void write();
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84 void handle_handshake(const std::error_code&);
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85 void handshake();
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86 void handle_connect(const std::error_code&);
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87 void connect(const boost::asio::ip::tcp::resolver::results_type&);
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88 void handle_resolve(const std::error_code&, const boost::asio::ip::tcp::resolver::results_type&);
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89 void resolve();
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90 void handle_timer(const std::error_code&);
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91 void timer();
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92 void start();
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93
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94 requester(boost::asio::io_context&,
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95 std::shared_ptr<server>,
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96 std::string,
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97 std::string,
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98 uri,
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99 std::size_t);
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100
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101 public:
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102 /**
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103 * Start seeking for a title in the link
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104 *
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105 * \param ctx the IO context
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106 * \param sv the server
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107 * \param origin the originator
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108 * \param channel the channel
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109 * \param message the message text
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110 */
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111 static void run(boost::asio::io_context& ctx,
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112 std::shared_ptr<server> sv,
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113 std::string origin,
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114 std::string channel,
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115 std::string message);
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116 };
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117
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118 } // !irccd
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119
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120 #endif // !IRCCD_REQUESTER_HPP