PROXYGEN

facebookが作ったC++のWebフレームワーク Proxygen の使い方を解説します

Transcript

1. PROXYGEN
   NAOMASA MATSUBAYASHI
   

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2. @fadis_
   Twitter
   Github
   Speakerdeck
   https://speakerdeck.com/fadis
   https://github.com/Fadis/
   NAOMASA MATSUBAYASHI
   ීஈ͸େࡕͰήʔϜ࡞ͬͯ·͢
   

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3. C++Ͱ
   WebΞϓϦέʔγϣϯͷαʔό
   Λॻ͖ͨ͘ͳͬͨΒ
   

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4. ࣗྗͰHTTPΛ஻Δ?
   ΫϥΠΞϯτ αʔό
   HTTP/1.0 200 OK!
   Date: Mon, 21 Sep 2015 11:40:04 GMT!
   Content-Length: 14!
   !
   Hello, World!
   GET / HTTP/1.0
   

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5. ΞοϋΠɺεϛϚηϯʜ
   ΫϥΠΞϯτ αʔό
   GET / HTTP/1.1!
   Host: example.com!
   Connection: Upgrade, HTTP2-Settings!
   Upgrade: h2c 1!
   HTTP2-Settings: …
   ਖ਼͘͠HTTPͰձ࿩͢Δͷ͸೉͍͠
   

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6. ਖ਼͍͠HTTPΛ஻Δ෦෼ͱ
   ΞϓϦέʔγϣϯຊମΛ෼཭͠Α͏
   WebϑϨʔϜϫʔΫ
   

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7. C++Ͱ࢖͑ΔWebϑϨʔϜϫʔΫ
   CppCMS
   cpp-netlib
   IUUQDQQDNTDPN
   IUUQDQQOFUMJCPSH
   Proxygen
   IUUQTHJUIVCDPNGBDFCPPLQSPYZHFO
   QHttpServer
   IUUQTHJUIVCDPNOJLIJMNRIUUQTFSWFS
   

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8. IUUQTDPEFGBDFCPPLDPNQPTUT
   

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9. Facebook͕
   ಉࣾͷαʔϏεΛ࣮૷͢Δҝʹ࡞ͬͨWebϑϨʔϜϫʔΫ
   2014೥11݄ʹ3৚߲BSDϥΠηϯεͰ
   ΦʔϓϯιʔεԽ͞Εͨ
   HTTP/1.x SPDY/2 SPDY/3.x HPACK TLS౳ʹରԠ
   HTTP/2ͷαϙʔτ͸ݱࡏਐߦத
   

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10. Hello, World!Λฦ͢
    WebαʔόΛॻ͍ͯΈΑ͏
    

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11. #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {}!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    tx.status( 200, "OK" ).body( "Hello, World!" ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    delete this;!
    }!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    proxygen::RequestHandler*, proxygen::HTTPMessage*!
    ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) { !
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {{!
    folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP!
    }}; !
    proxygen::HTTPServerOptions options;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    proxygen::HTTPServer server( std::move( options ) );!
    server.bind( IPs );!
    server.start();!
    return 0;!
    }
    

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12. };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    proxygen::RequestHandler*, proxygen::HTTPMessage*!
    ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) { !
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {{!
    folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP!
    }}; !
    proxygen::HTTPServerOptions options;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    proxygen::HTTPServer server( std::move( options ) );!
    server.bind( IPs );!
    server.start();!
    return 0;!
    }
    ΫϥΠΞϯτ͔ΒͷΞΫηεΛड͚෇͚Δ
    ΞυϨεͱϙʔτ൪߸ͷϦετ
    ϓϩτίϧʹHTTPΛࢦఆ
    ໊લղܾΛڐՄ
    

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13. };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    proxygen::RequestHandler*, proxygen::HTTPMessage*!
    ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) { !
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {{!
    folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP!
    }}; !
    proxygen::HTTPServerOptions options;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    proxygen::HTTPServer server( std::move( options ) );!
    server.bind( IPs );!
    server.start();!
    return 0;!
    }
    ϦΫΤετϋϯυϥͷfactoryΛొ࿥
    HTTPServer͸઀ଓΛड͚෇͚Δͱ
    ొ࿥͞ΕͨfactoryͰϦΫΤετϋϯυϥΛੜ੒
    Ҏޙϔομ΍ຊจ͕ಧ͘ͱ
    ϦΫΤετϋϯυϥͷϝϯό͕ݺ͹ΕΔ
    HTTPServerͷΠϯελϯεΛ࡞Δ
    

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14. void onError(proxygen::ProxygenError err) noexcept override {!
    delete this;!
    }!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    proxygen::RequestHandler*, proxygen::HTTPMessage*!
    ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) { !
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {{!
    folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP!
    }}; !
    proxygen::HTTPServerOptions options;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    proxygen::HTTPServer server( std::move( options ) );!
    server.bind( IPs );!
    server.start();!
    return 0;!
    }
    ઀ଓΛ଴ͪड͚ΔΞυϨεΛࢦఆ
    start()ͰHTTPαʔόΛىಈ
    start()͸αʔό͕ఀࢭ͢Δ·ͰฦΒͳ͍
    

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15. proxygen::ResponseBuilder tx( downstream_ );!
    tx.status( 200, "OK" ).body( "Hello, World!" ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    delete this;!
    }!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    proxygen::RequestHandler*, proxygen::HTTPMessage*!
    ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) { !
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {{!
    folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP!
    }}; !
    proxygen::HTTPServerOptions options;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    proxygen::HTTPServer server( std::move( options ) );!
    αʔόىಈ࣌ʹߦ͏ॲཧ
    ऴྃ࣌ʹߦ͏ॲཧ
    RequestHandlerFactoryΛܧঝ
    ϦΫΤετ͕དྷͨ࣌ʹߦ͏ॲཧ
    ϦΫΤετϋϯυϥϑΝΫτϦ
    

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16. #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {}!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    tx.status( 200, "OK" ).body( "Hello, World!" ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    delete this;!
    }!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    ϦΫΤετϋϯυϥ
    RequestHandlerΛܧঝ
    

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17. #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {}!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    tx.status( 200, "OK" ).body( "Hello, World!" ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    delete this;!
    }!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    ϦΫΤετϋϯυϥ
    onRequest
    HTTPϦΫΤετͷ
    ϔομ͕ಧ͍ͨ࣌఺Ͱݺ͹ΕΔ
    

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18. HTTPϦΫΤετͷߏ଄
    ϔομ
    ຊจ
    &OEPG.FTTBHF
    ϦΫΤετͷछྨ΍
    ෇ਵ͢Δύϥϝλ
    POSTͰαʔόʹૹΔ
    σʔλ౳
    ຊจͷऴྃΛදۭ͢ߦ
    

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19. ϔομ
    ຊจ
    &OEPG.FTTBHF
    ͜͜·Ͱड৴ͨ͠Β
    onRequest
    

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20. #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {}!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    tx.status( 200, "OK" ).body( "Hello, World!" ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    delete this;!
    }!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    ϦΫΤετϋϯυϥ
    onEOM
    HTTPϦΫΤετΛ
    શͯड৴ͨ࣌͠఺Ͱݺ͹ΕΔ
    

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21. ϔομ
    ຊจ
    &OEPG.FTTBHF
    ͜͜·Ͱड৴ͨ͠Β
    onEOM
    

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22. #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {}!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    tx.status( 200, "OK" ).body( "Hello, World!" ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    delete this;!
    }!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    ϦΫΤετϋϯυϥ
    onBody
    HTTPϦΫΤετͷ
    ຊจΛड৴ͨ࣌͠఺Ͱݺ͹ΕΔ
    

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23. ϔομ
    ຊจ
    &OEPG.FTTBHF
    ͜͜·Ͱड৴ͨ͠Β
    onBody
    ͦΕͬͯ
    onEOMͱ
    ҰॹͳͷͰ͸?
    ͜͜·Ͱड৴ͨ͠Β
    onEOM
    

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24. ϔομ
    &OEPG.FTTBHF
    શମͷ௕͕͞෼͔Βͳͯ͘΋
    ຊจΛૹΓ࢝ΊΔࣄ͕Ͱ͖Δ
    νϟϯΫ
    νϟϯΫ
    νϟϯΫ
    νϟϯΫసૹ
    HTTPͷຊจ͸
    ෳ਺ʹ෼ׂͯ͠
    ૹΔ͜ͱ͕Ͱ͖Δ
    ϔομʹຊจͷ௕͞Λ
    ॻ͘୅ΘΓʹ
    νϟϯΫʹνϟϯΫͷ௕͞Λॻ͘
    

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25. ϔομ
    &OEPG.FTTBHF
    νϟϯΫ
    νϟϯΫ
    νϟϯΫ ͜͜·Ͱड৴ͨ͠Β
    onBody
    ͜͜΋
    ͬͪ͜΋
    onBody͸ෳ਺ճݺ͹ΕΔՄೳੑ͕͋Δ
    

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26. #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {}!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    tx.status( 200, "OK" ).body( "Hello, World!" ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    delete this;!
    }!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    ϦΫΤετϋϯυϥ
    onUpgrade
    ϦΫΤετͷ಺༰͕
    UPGRADEͩͬͨ৔߹ʹݺ͹ΕΔ
    

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27. UPGRADE
    HTTP/1.1Ͱ௥Ճ͞Εͨ
    ผͷϓϩτίϧʹ੾Γସ͑ΔҝͷϦΫΤετ
    ࠓͷͱ͜Ζ
    WebSocketͱHTTP/2(ฏจ൛)͕࢖͍ͬͯΔ
    

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28. void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {}!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    tx.status( 200, "OK" ).body( "Hello, World!" ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    delete this;!
    }!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    proxygen::RequestHandler*, proxygen::HTTPMessage*!
    ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) { !
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {{!
    folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP!
    ϦΫΤετϋϯυϥ
    requestComplete
    ΫϥΠΞϯτʹϨεϙϯεΛૹΓ੾Δͱݺ͹ΕΔ
    onError
    ΫϥΠΞϯτଆ͔Β੾அ͞ΕΔ౳
    Ϩεϙϯεͷૹ৴׬ྃ·Ͱ౸ୡग़དྷͳ͘ͳͬͨΒ
    ݺ͹ΕΔ
    

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29. void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    tx.status( 200, "OK" ).body( "Hello, World!" ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    delete this;!
    }!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    proxygen::RequestHandler*, proxygen::HTTPMessage*!
    ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) { !
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {{!
    folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP!
    }}; !
    proxygen::HTTPServerOptions options;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    ϦΫΤετϋϯυϥ
    ͜ΕҎ߱ϦΫΤετϋϯυϥ͕
    ݺ͹ΕΔࣄ͸ແ͍ͨΊɺ͜͜Ͱࣗ਎Λdelete͢Δ
    ໌ࣔతͳdelete͸େมΠέͯͳ͍͕
    Proxygen͕ੜϙΠϯλ͔͠ѲΕͳ͍ͷͰ
    ͜͏͢Δ͔͠ͳ͍
    

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30. #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {}!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    tx.status( 200, "OK" ).body( "Hello, World!" ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    delete this;!
    }!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    Hello,World!ͷྫͰ΍͍ͬͯΔࣄ
    ΫϥΠΞϯτ͕ϦΫΤετΛૹΓ੾ͬͨΒ
    ResponseBuilderΛ࡞ͬͯ
    εςʔλείʔυʹ200 OKΛࢦఆͯ͠
    ຊจʹ”Hello, World!”
    ࠷ޙʹsendWithEOM()Ͱ
    ϨεϙϯεΛऴྃͤ͞Δ
    

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31. $ telnet www41050u.sakura.ne.jp 8080
    Trying xxx.xxx.xxx.xxx...
    Connected to www41050u.sakura.ne.jp.
    Escape character is '^]'.
    GET / HTTP/1.1
    !
    HTTP/1.1 200 OK
    Date: Wed, 30 Sep 2015 17:11:43 GMT
    Connection: keep-alive
    Content-Length: 13
    !
    Hello, World!
    telnetͰ઀ଓͯ͠ΈΑ͏
    Ϩεϙϯε͕དྷͨ!
    

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32. tx.body( "Hello, World!" ).sendWithEOM();
    tx.body( "hoge" ).send();!
    tx.body( "fuga" ).send();!
    tx.body( "piyo" ).send();!
    tx.body( "foo" ).sendWithEOM();
    send()Λ࢖͏ͱνϟϯΫసૹʹͳΔ
    

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33. send()Λ࢖͏ͱνϟϯΫసૹʹͳΔ
    $ telnet www41050u.sakura.ne.jp 8080!
    Trying xxx.xxx.xxx.xxx….!
    Connected to www41050u.sakura.ne.jp.!
    Escape character is '^]'.!
    GET / HTTP/1.1!
    !
    HTTP/1.1 200 OK!
    Transfer-Encoding: chunked!
    Date: Wed, 30 Sep 2015 16:39:34 GMT!
    Connection: keep-alive!
    !
    4!
    hoge!
    4!
    fuga!
    4!
    piyo!
    3!
    foo!
    0!
    !
    νϟϯΫ
    

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34. public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {}!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    tx.status( 200, "OK" );!
    tx.header( "Content-Type", "text/plain" );!
    tx.body( "Hello, World!” ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    delete this;!
    }!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    proxygen::RequestHandler*, proxygen::HTTPMessage*!
    ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) { !
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {{!
    Ϩεϙϯεϔομ
    ResponseBuilderͷheader()Λ࢖ͬͯ
    ϨεϙϯεϔομΛ௥Ճ͢Δ
    Content-Type: text/plain Λ௥Ճ
    

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35. $ telnet www41050u.sakura.ne.jp 8080!
    Trying xxx.xxx.xxx.xxx...!
    Connected to www41050u.sakura.ne.jp.!
    Escape character is '^]'.!
    GET / HTTP/1.1!
    !
    HTTP/1.1 200 OK!
    Content-Type: text/plain!
    Date: Thu, 01 Oct 2015 15:04:42 GMT!
    Connection: keep-alive!
    Content-Length: 13!
    !
    Hello, World!
    Ϩεϙϯεϔομ
    Content-Type
    

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36. ѹॖ
    HTTP͸ϨεϙϯεͷຊจΛ
    deflate΍gzipͰѹॖͯ͠ૹΔࣄ͕ग़དྷΔ
    Proxygenʹ͸
    gzipʹΑΔѹॖ͕࠷ॳ͔Β༻ҙ͞Ε͍ͯΔ
    

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37. #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {}!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    tx.status( 200, "OK" );!
    tx.header( "Content-Type", "text/plain" );!
    tx.body( std::string( 10000, '[' ) ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    delete this;!
    }!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    proxygen::RequestHandler*, proxygen::HTTPMessage*!
    ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) { !
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {{!
    folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP!
    }}; !
    proxygen::HTTPServerOptions options;!
    options.enableContentCompression = true;!
    options.contentCompressionMinimumSize = 5;!
    options.contentCompressionLevel = 4;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    proxygen::HTTPServer server( std::move( options ) );!
    server.bind( IPs );!
    server.start();!
    return 0;!
    }
    

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38. public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {}!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    tx.status( 200, "OK" );!
    tx.header( "Content-Type", "text/plain" );!
    tx.body( std::string( 10000, '[' ) ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    delete this;!
    }!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    proxygen::RequestHandler*, proxygen::HTTPMessage*!
    ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) { !
    10000bytesͷ’[’
    େ͖ͳຊจͩ!ѹॖ͠Α͏!
    

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39. ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) { !
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {{!
    folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP!
    }}; !
    proxygen::HTTPServerOptions options;!
    options.enableContentCompression = true;!
    options.contentCompressionMinimumSize = 5;!
    options.contentCompressionLevel = 4;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    proxygen::HTTPServer server( std::move( options ) );!
    server.bind( IPs );!
    server.start();!
    return 0;!
    }
    HTTPServerOptionʹ
    ѹॖʹඞཁͳ৘ใΛઃఆ
    enableContentCompression
    ѹॖΛ༗ޮʹ͢Δ
    σϑΥϧτfalse
    

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40. ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) { !
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {{!
    folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP!
    }}; !
    proxygen::HTTPServerOptions options;!
    options.enableContentCompression = true;!
    options.contentCompressionMinimumSize = 5;!
    options.contentCompressionLevel = 4;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    proxygen::HTTPServer server( std::move( options ) );!
    server.bind( IPs );!
    server.start();!
    return 0;!
    }
    HTTPServerOptionʹ
    ѹॖʹඞཁͳ৘ใΛઃఆ
    contentCompressionMinimumSize
    ͜ͷαΠζະຬͷຊจ͸ѹॖ͠ͳ͍
    σϑΥϧτ1000
    

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41. ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) { !
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {{!
    folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP!
    }}; !
    proxygen::HTTPServerOptions options;!
    options.enableContentCompression = true;!
    options.contentCompressionMinimumSize = 5;!
    options.contentCompressionLevel = 4;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    proxygen::HTTPServer server( std::move( options ) );!
    server.bind( IPs );!
    server.start();!
    return 0;!
    }
    HTTPServerOptionʹ
    ѹॖʹඞཁͳ৘ใΛઃఆ
    contentCompressionLevel
    zlibͷѹॖϨϕϧ
    σϑΥϧτ-1
    zlibʹѹॖϨϕϧ-1Λ౉͢ͱѹॖ͕ࣦഊ͠
    αʔό͕Τϥʔऴྃ͢Δ(ͭ·Γઃఆඞਢ)
    

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42. proxygen::HTTPServer::Protocol::HTTP!
    }}; !
    proxygen::HTTPServerOptions options;!
    options.enableContentCompression = true;!
    options.contentCompressionMinimumSize = 5;!
    options.contentCompressionLevel = 4;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    proxygen::HTTPServer server( std::move( options ) );!
    server.bind( IPs );!
    server.start();!
    return 0;!
    }
    contentCompressionTypes
    ͜͜Ͱ͸σϑΥϧτͷ··ʹ͍ͯ͠ΔΦϓγϣϯ
    ѹॖ͢ΔContent-Type
    σϑΥϧτ͸
    ”application/javascript”,”application/json","application/x-javascript",
    “application/xhtml+xml","application/xml","application/xml+rss",
    “text/css","text/html","text/javascript","text/plain","text/xml"
    Content-Type͕͜ΕΒʹ߹க͢Δ৔߹ͷΈ
    ѹॖΛߦ͏
    

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43. $ telnet www41050u.sakura.ne.jp 8080
    Trying xxx.xxx.xxx.xxx...
    Connected to www41050u.sakura.ne.jp.
    Escape character is '^]'.
    GET / HTTP/1.1
    !
    HTTP/1.1 200 OK
    Content-Type: text/plain
    Date: Thu, 01 Oct 2015 16:13:37 GMT
    Connection: keep-alive
    Content-Length: 10000
    !
    [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[(ҎԼུ)
    ಛʹԿ΋ࢦఆͤͣʹGET
    

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44. $ telnet www41050u.sakura.ne.jp 8080!
    Trying xxx.xxx.xxx.xxx...!
    Connected to www41050u.sakura.ne.jp.!
    Escape character is '^]'.!
    GET / HTTP/1.1!
    Accept-Encoding: gzip !
    !
    HTTP/1.1 200 OK!
    Content-Type: text/plain!
    Content-Encoding: gzip!
    Date: Thu, 01 Oct 2015 16:16:56 GMT!
    Connection: keep-alive!
    Content-Length: 46!
    !
    ?n@???#'
    Accept-Encoding: gzip ͰGET
    ΫϥΠΞϯτʮgzipͰѹॖͯ͠ྑ͍ʯ
    αʔόʮgzipͰѹॖͯ͋͠ΔΑʯ
    ຊจ͕gzipͰѹॖ͞Ε͍ͯΔ
    

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45. ύεʹΑͬͯҧ͏ϨεϙϯεΛฦͦ͏
    http://example.com/hoge/fuga
    ͜ͷ෦෼
    

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46. #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {!
    path = headers->getPath();!
    }!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    if( path == "/" ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "It's a top page." ).sendWithEOM();!
    } !
    else if( path == "/foo.txt" ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "Foo." ).sendWithEOM();!
    } !
    else tx.status( 404, "File not found" ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    delete this;!
    }!
    private:!
    std::string path;!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    proxygen::RequestHandler*, proxygen::HTTPMessage*!
    ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) {!
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {{!
    folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP!
    }};!
    proxygen::HTTPServerOptions options;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    proxygen::HTTPServer server( std::move( options ) );!
    server.bind( IPs );!
    server.start();!
    return 0;!
    }
    

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47. #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {!
    path = headers->getPath();!
    }!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    if( path == "/" ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "It's a top page." ).sendWithEOM();!
    } !
    else if( path == "/foo.txt" ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "Foo." ).sendWithEOM();!
    } !
    else tx.status( 404, "File not found" ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    onRequestͰ౉ͬͯ͘Δ
    HTTPMessageʹύε͕ೖ͍ͬͯΔ
    HTTPMessage::getPath()Ͱ
    ύεΛจࣈྻͰऔಘ
    

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48. #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {!
    path = headers->getPath();!
    }!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    if( path == "/" ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "It's a top page." ).sendWithEOM();!
    } !
    else if( path == "/foo.txt" ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "Foo." ).sendWithEOM();!
    } !
    else tx.status( 404, "File not found" ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    ޙ͸onEOMͰฦ͢ίϯςϯπΛ
    ύεʹΑͬͯม͑Δ͚ͩ
    

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49. $ telnet www41050u.sakura.ne.jp 8080!
    Trying xxx.xxx.xxx.xxx...!
    Connected to www41050u.sakura.ne.jp.!
    Escape character is '^]'.!
    GET / HTTP/1.1!
    !
    HTTP/1.1 200 OK!
    Content-Type: text/plain!
    Date: Thu, 01 Oct 2015 17:38:49 GMT!
    Connection: keep-alive!
    Content-Length: 16!
    !
    It's a top page.!
    !
    GET /foo.txt HTTP/1.1!
    !
    HTTP/1.1 200 OK!
    Content-Type: text/plain!
    Date: Thu, 01 Oct 2015 17:39:03 GMT!
    Connection: keep-alive!
    Content-Length: 4!
    !
    Foo.
    ύεʹΑͬͯ
    ҟͳΔ
    Ϩεϙϯε
    

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50. http://example.com/hoge/fuga?piyo=1
    ͜ͷ෦෼
    ΫΤϦʹΑͬͯҧ͏ϨεϙϯεΛฦͦ͏
    

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51. #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {!
    arg = headers->getDecodedQueryParam( "hoge" );!
    }!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    if( arg == "fuga" ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "Fuga." ).sendWithEOM();!
    } !
    else if( arg == "foo" ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "Foo." ).sendWithEOM();!
    } !
    else tx.status( 400, "Bad Request" ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    delete this;!
    }!
    private:!
    std::string arg;!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    proxygen::RequestHandler*, proxygen::HTTPMessage*!
    ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) {!
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {{!
    folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP!
    }};!
    proxygen::HTTPServerOptions options;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    proxygen::HTTPServer server( std::move( options ) );!
    server.bind( IPs );!
    server.start();!
    return 0;!
    }
    

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52. #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {!
    arg = headers->getDecodedQueryParam( "hoge" );!
    }!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    if( arg == "fuga" ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "Fuga." ).sendWithEOM();!
    } !
    else if( arg == "foo" ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "Foo." ).sendWithEOM();!
    } !
    else tx.status( 400, "Bad Request" ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    ΫΤϦ΋HTTPMessageʹೖ͍ͬͯΔ
    HTTPMessage::getDecodedQueryParam()Ͱ
    ஋ΛจࣈྻͰऔಘ
    

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53. #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {!
    arg = headers->getDecodedQueryParam( "hoge" );!
    }!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    if( arg == "fuga" ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "Fuga." ).sendWithEOM();!
    } !
    else if( arg == "foo" ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "Foo." ).sendWithEOM();!
    } !
    else tx.status( 400, "Bad Request" ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    ޙ͸onEOMͰฦ͢ίϯςϯπΛ
    ஋ʹΑͬͯม͑Δ͚ͩ
    

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54. $ telnet www41050u.sakura.ne.jp 8080!
    Trying xxx.xxx.xxx.xxx...!
    Connected to www41050u.sakura.ne.jp.!
    Escape character is '^]'.!
    GET / HTTP/1.1!
    !
    HTTP/1.1 400 Bad Request!
    Date: Sat, 03 Oct 2015 05:46:54 GMT!
    Connection: keep-alive!
    Content-Length: 0!
    !
    GET /?hoge=fuga HTTP/1.1!
    !
    HTTP/1.1 200 OK!
    Content-Type: text/plain!
    Date: Sat, 03 Oct 2015 05:47:12 GMT!
    Connection: keep-alive!
    Content-Length: 5!
    !
    Fuga.
    ΫΤϦʹΑͬͯ
    ҟͳΔ
    Ϩεϙϯε
    

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55. http://example.com/
    ͜ͷ෦෼
    ϗετ໊ʹΑͬͯҧ͏ϨεϙϯεΛฦͦ͏
    ॴҦ໊લϕʔεόʔνϟϧϗετ
    

    View Slide

56. #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {!
    host = headers->getHeaders().getSingleOrEmpty( "Host" );!
    }!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    if( host == "www41050u.sakura.ne.jp:8080" ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "First webpage\n" ).sendWithEOM();!
    } !
    else if( host == "localhost:8080" ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "Second webpage\n" ).sendWithEOM();!
    } !
    else tx.status( 400, "Bad Request" ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    delete this;!
    }!
    private:!
    std::string host;!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    proxygen::RequestHandler*, proxygen::HTTPMessage*!
    ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) {!
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {!
    { folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP },!
    { folly::SocketAddress( "localhost", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP }!
    };!
    proxygen::HTTPServerOptions options;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    proxygen::HTTPServer server( std::move( options ) );!
    server.bind( IPs );!
    server.start();!
    return 0;!
    }
    

    View Slide

57. std::string host;!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    proxygen::RequestHandler*, proxygen::HTTPMessage*!
    ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) {!
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {!
    { folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP },!
    { folly::SocketAddress( "localhost", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP }!
    };!
    proxygen::HTTPServerOptions options;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    proxygen::HTTPServer server( std::move( options ) );!
    server.bind( IPs );!
    server.start();!
    return 0;!
    }
    ෳ਺ͷϗετ໊͔Βͷ
    ઀ଓΛड͚෇͚ΔΑ͏ʹ͢Δ
    

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58. #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {!
    host = headers->getHeaders().getSingleOrEmpty( "Host" );!
    }!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    if( host == "www41050u.sakura.ne.jp:8080" ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "First webpage\n" ).sendWithEOM();!
    } !
    else if( host == "localhost:8080" ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "Second webpage\n" ).sendWithEOM();!
    } !
    else tx.status( 400, "Bad Request" ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    ϦΫΤετϔομ͔ΒHostΛऔಘ
    HTTPMessage::getSingleOrEmpty( ϑΟʔϧυ໊ )Ͱ
    ϦΫΤετϔομʹઃఆ͞Εͨ஋Λऔಘ
    §14.23 Host
    A client MUST include a Host header field in
    all HTTP/1.1 request messages.
    http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
    HTTP/1.1Ͱ͸Host͸ඞਢͳͷͰ
    ۭจࣈྻ͕ฦͬͯདྷͨΒ400Ͱฦͯ͠OK
    

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59. #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {!
    host = headers->getHeaders().getSingleOrEmpty( "Host" );!
    }!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    if( host == "www41050u.sakura.ne.jp:8080" ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "First webpage\n" ).sendWithEOM();!
    } !
    else if( host == "localhost:8080" ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "Second webpage\n" ).sendWithEOM();!
    } !
    else tx.status( 400, "Bad Request" ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    ޙ͸onEOMͰฦ͢ίϯςϯπΛ
    ஋ʹΑͬͯม͑Δ͚ͩ
    

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60. $ curl http://www41050u.sakura.ne.jp:8080/!
    First webpage!
    $ curl http://localhost:8080/
    Second webpage
    ϗετ໊ʹΑͬͯҧ͏݁Ռ͕ฦͬͯ͘Δ
    

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61. ஫ҙ
    Host͸ΫϥΠΞϯτͷࣗݾਃࠂ͔ͩΒ
    ؆୯ʹِ૷Ͱ͖Δ
    $ telnet www41050u.sakura.ne.jp 8080!
    Trying xxx.xxx.xxx.xx...!
    Connected to www41050u.sakura.ne.jp.!
    Escape character is '^]'.!
    GET / HTTP/1.1!
    Host: localhost:8080!
    !
    HTTP/1.1 200 OK!
    Content-Type: text/plain!
    Date: Sat, 03 Oct 2015 15:35:57 GMT!
    Connection: keep-alive!
    Content-Length: 15!
    !
    Second webpage
    ֎޲͖ΞυϨεͰΞΫηε
    ಺޲͖ΞυϨεΛࣗশ
    ಺޲͖ίϯςϯπ͕ฦͬͯ͠·ͬͨ!
    

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62. HTTPMessage::getClientAddress()
    ઀ଓ͖ͯͨ͠ΫϥΠΞϯτͷΞυϨεΛಘΔ
    HTTPMessage::getDstAddress()
    ઀ଓΛड͚෇͚ͨαʔόͷΞυϨεΛಘΔ
    ಛఆͷϗετҎ֎͔Β
    ΞΫηεͤͨ͘͞ͳ͍৔߹͸
    ͜ΕΒͷ৘ใΛ࢖ͬͯ·͍ͣϦΫΤετΛऽΔ
    

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63. Cookie
    ΫϥΠΞϯτ αʔό
    ʮ͓લͷID͸hogeͳʯ
    ʮhogeͷਓͰ͢ʯ
    ʮ௨ͬͯΑ͠ʯ
    ΫϥΠΞϯτʹ஋Λอଘ͓ͯ͘͠࢓૊Έ
    IPHF
    

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64. #include !
    #include !
    #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {!
    const auto count_ = headers->getCookie( "count" );!
    if( count_.empty() ) count = 0;!
    else {!
    auto iter = count_.begin();!
    namespace qi = boost::spirit::qi;!
    if( !qi::parse( iter, count_.end(), qi::uint_, count ) ) !
    count = 0;!
    } !
    }!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    namespace karma = boost::spirit::karma;!
    std::string h, b;!
    ++count;!
    proxygen::ResponseBuilder tx( downstream_ );!
    if( !
    karma::generate(!
    std::back_inserter( h ), "count=" << karma::uint_ <";expires=Thu, 1-Jan-2030 00:00:00 GMT",!
    count!
    ) &&!
    karma::generate(!
    std::back_inserter( b ),!
    "You accessed " << karma::uint_ << " times" << karma::eol,!
    count!
    ) !
    ) {!
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.header( "Set-Cookie", h ).body( b ).sendWithEOM();!
    }!
    else tx.status( 500, "Internal Server Error" ).sendWithEOM();!
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    delete this;!
    }!
    private:!
    uint32_t count;!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    proxygen::RequestHandler*, proxygen::HTTPMessage*!
    ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) {!
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {{!
    folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP!
    }};!
    proxygen::HTTPServerOptions options;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    proxygen::HTTPServer server( std::move( options ) );!
    server.bind( IPs );!
    server.start();!
    return 0;!
    }
    

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65. #include !
    #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {!
    const auto count_ = headers->getCookie( "count" );!
    if( count_.empty() ) count = 0;!
    else {!
    auto iter = count_.begin();!
    namespace qi = boost::spirit::qi;!
    if( !qi::parse( iter, count_.end(), qi::uint_, count ) ) !
    count = 0;!
    } !
    }!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    namespace karma = boost::spirit::karma;!
    std::string h, b;!
    ++count;!
    proxygen::ResponseBuilder tx( downstream_ );!
    if( !
    karma::generate(!
    HTTPMessage::getCookie( ύϥϝλ໊ )Ͱ
    ΫϥΠΞϯτ͔Βಧ͍ͨCookieΛऔಘ
    

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66. auto iter = count_.begin();!
    namespace qi = boost::spirit::qi;!
    if( !qi::parse( iter, count_.end(), qi::uint_, count ) ) !
    count = 0;!
    } !
    }!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    namespace karma = boost::spirit::karma;!
    std::string h, b;!
    ++count;!
    proxygen::ResponseBuilder tx( downstream_ );!
    if( !
    karma::generate(!
    std::back_inserter( h ), "count=" << karma::uint_ <";expires=Thu, 1-Jan-2030 00:00:00 GMT",!
    count!
    ) &&!
    karma::generate(!
    std::back_inserter( b ),!
    "You accessed " << karma::uint_ << " times" << karma::eol,!
    count!
    ) !
    ) {!
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.header( "Set-Cookie", h ).body( b ).sendWithEOM();!
    }!
    CookieΛૹΔํ͸Կނ͔༻ҙ͞Ε͍ͯͳ͍ͷͰ
    ؾ߹͍Ͱ૊Έཱͯͯheader()
    

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67. $ curl -b cookie.db -c cookie.db http://www41050u.sakura.ne.jp:8080/!
    You accessed 1 times!
    $ curl -b cookie.db -c cookie.db http://www41050u.sakura.ne.jp:8080/!
    You accessed 2 times!
    $ curl -b cookie.db -c cookie.db http://www41050u.sakura.ne.jp:8080/!
    You accessed 3 times
    CookieΛ࢖ͬͯ
    Կ౓໨ͷΞΫηε͔Λௐ΂Δ
    

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68. TLS
    ΫϥΠΞϯτ αʔό
    ʮxxxxxxxʯ
    ʮxxxxxxxʯ
    ωΰγΤʔγϣϯ
    ѱҙ͋Δୈࡾऀ
    

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69. #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {!
    is_tls = headers->isSecure();!
    }!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    if( is_tls ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "Hello, World!\n" ).sendWithEOM();!
    } !
    else {!
    tx.status( 301, "Moved Permanently" );!
    tx.header( "Location", "https://www41050u.sakura.ne.jp:8443/" );!
    tx.sendWithEOM();!
    } !
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    delete this;!
    }!
    private:!
    bool is_tls;!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    proxygen::RequestHandler*, proxygen::HTTPMessage*!
    ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) {!
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {!
    { folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP },!
    { folly::SocketAddress( "www41050u.sakura.ne.jp", 8443, true ),!
    proxygen::HTTPServer::Protocol::HTTP },!
    };!
    wangle::SSLContextConfig ssl;!
    ssl.isDefault = true;!
    ssl.setCertificate(!
    "./server.crt",!
    "./server.key",!
    "./password"!
    );!
    IPs.back().sslConfigs.push_back( ssl );!
    proxygen::HTTPServerOptions options;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    proxygen::HTTPServer server( std::move( options ) );!
    server.bind( IPs );!
    server.start();!
    return 0;!
    }
    

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70. void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    proxygen::RequestHandler*, proxygen::HTTPMessage*!
    ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) {!
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {!
    { folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP },!
    { folly::SocketAddress( "www41050u.sakura.ne.jp", 8443, true ),!
    proxygen::HTTPServer::Protocol::HTTP },!
    };!
    wangle::SSLContextConfig ssl;!
    ssl.isDefault = true;!
    ssl.setCertificate(!
    "./server.crt",!
    "./server.key",!
    "./password"!
    );!
    IPs.back().sslConfigs.push_back( ssl );!
    proxygen::HTTPServerOptions options;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    proxygen::HTTPServer server( std::move( options ) );!
    server.bind( IPs );!
    server.start();!
    ฏจ༻ͷϙʔτͱ͸ผʹ
    TLS༻ͷϙʔτΛ։͚Δ
    

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71. };!
    int main( int argc, char* argv[] ) {!
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {!
    { folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP },!
    { folly::SocketAddress( "www41050u.sakura.ne.jp", 8443, true ),!
    proxygen::HTTPServer::Protocol::HTTP },!
    };!
    wangle::SSLContextConfig ssl;!
    ssl.isDefault = true;!
    ssl.setCertificate(!
    "./server.crt",!
    "./server.key",!
    "./password"!
    );!
    IPs.back().sslConfigs.push_back( ssl );!
    proxygen::HTTPServerOptions options;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    proxygen::HTTPServer server( std::move( options ) );!
    server.bind( IPs );!
    server.start();!
    return 0;!
    }
    SSLContextConfigΛ࡞ͬͯ
    TLS༻ͷϙʔτͷํͷsslConfigsʹ௥Ճ͢Δ
    ͜ͷSSLͷઃఆΛ࢖͏ϗετΛ
    SNIͷࢦఆ͕ແ͔ͬͨ৔߹ͷ
    σϑΥϧτʹ͢Δ
    SNI
    Server Name Indication
    Webαʔόʹෳ਺ͷ໊લͰΞΫηεग़དྷΔ࣌ʹ
    Ͳͷ໊લʹରԠ͢Δূ໌ॻ͕ཉ͍͔͠Λ
    αʔόʹ఻͑Δ࢓૊Έ
    ͜Ε͕ແ͍ͱਖ਼͍͠ূ໌ॻ͕໯͑ͳͯ͘
    TLSӽ͠ʹ໊લϕʔεόʔνϟϧϗετ͕ग़དྷͳ͍
    

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72. };!
    int main( int argc, char* argv[] ) {!
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {!
    { folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP },!
    { folly::SocketAddress( "www41050u.sakura.ne.jp", 8443, true ),!
    proxygen::HTTPServer::Protocol::HTTP },!
    };!
    wangle::SSLContextConfig ssl;!
    ssl.isDefault = true;!
    ssl.setCertificate(!
    "./server.crt",!
    "./server.key",!
    "./password"!
    );!
    IPs.back().sslConfigs.push_back( ssl );!
    proxygen::HTTPServerOptions options;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    proxygen::HTTPServer server( std::move( options ) );!
    server.bind( IPs );!
    server.start();!
    return 0;!
    }
    SSLContextConfigΛ࡞ͬͯ
    TLS༻ͷϙʔτͷํͷsslConfigsʹ௥Ճ͢Δ
    αʔόূ໌ॻ
    ൿີ伴
    ূ໌ॻͷύεϫʔυ
    

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73. #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {!
    is_tls = headers->isSecure();!
    }!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    if( is_tls ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "Hello, World!\n" ).sendWithEOM();!
    } !
    else {!
    tx.status( 301, "Moved Permanently" );!
    tx.header( "Location", "https://www41050u.sakura.ne.jp:8443/" );!
    tx.sendWithEOM();!
    } !
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    ฏจ͔TLSܦ༝͔͸
    HTTPMessage::isSecure()Ͱ൑ผͰ͖Δ
    

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74. #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {!
    is_tls = headers->isSecure();!
    }!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    if( is_tls ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "Hello, World!\n" ).sendWithEOM();!
    } !
    else {!
    tx.status( 301, "Moved Permanently" );!
    tx.header( "Location", "https://www41050u.sakura.ne.jp:8443/" );!
    tx.sendWithEOM();!
    } !
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    void requestComplete() noexcept override { delete this; }!
    void onError(proxygen::ProxygenError err) noexcept override {!
    delete this;!
    }!
    private:!
    ඞਢͰ͸ͳ͍͕
    TLSͳWebαΠτʹฏจͰΞΫηε͕͋ͬͨ৔߹
    TLSܦ༝ʹϦμΠϨΫτ͢Δͷ͕
    ͓ߦّͷྑ͍WebαΠτͱ͞Ε͍ͯΔ
    

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75. $ curl -L --insecure http://www41050u.sakura.ne.jp:8080!
    Hello, World!
    ϦμΠϨΫτΛḷΔΑ͏ʹࢦࣔ
    ΦϨΦϨূ໌ॻ͚ͩͲ
    ؾʹͤͣܨ͙Α͏ࢦࣔ
    (ͪΌΜͱͨ͠ূ໌ॻΛ࢖͏৔߹͸ෆཁ)
    

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76. 13:55:02.906915 IP (tos 0x0, ttl 64, id 41559, offset 0, flags [DF],
    proto TCP (6), length 60)!
    www41050u.sakura.ne.jp.58268 > www41050u.sakura.ne.jp.http-alt:
    Flags [S], cksum 0x3c87 (incorrect -> 0x684b), seq 2056417443, win
    43690, options [mss 65495,sackOK,TS val 1027003124 ecr 0,nop,wscale
    7], length 0!
    ! 0x0000: 4500 003c a257 4000 4006 5c0c 31d4 6c58!
    ! 0x0010: 31d4 6c58 e39c 1f90 7a92 70a3 0000 0000!
    ! 0x0020: a002 aaaa 3c87 0000 0204 ffd7 0402 080a!
    ! 0x0030: 3d36 d2f4 0000 0000 0103 0307!
    13:55:02.906930 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF],
    proto TCP (6), length 60)!
    www41050u.sakura.ne.jp.http-alt > www41050u.sakura.ne.jp.58268:
    Flags [S.], cksum 0x3c87 (incorrect -> 0x908a), seq 270579556, ack
    2056417444, win 43690, options [mss 65495,sackOK,TS val 1027003124
    ecr 1027003124,nop,wscale 7], length 0!
    ! 0x0000: 4500 003c 0000 4000 4006 fe63 31d4 6c58!
    ! 0x0010: 31d4 6c58 1f90 e39c 1020 b764 7a92 70a4!
    ! 0x0020: a012 aaaa 3c87 0000 0204 ffd7 0402 080a!
    ! 0x0030: 3d36 d2f4 3d36 d2f4 0103 0307!
    13:55:02.906942 IP (tos 0x0, ttl 64, id 41560, offset 0, flags [DF],
    proto TCP (6), length 52)!
    www41050u.sakura.ne.jp.58268 > www41050u.sakura.ne.jp.http-alt:
    Flags [.], cksum 0x3c7f (incorrect -> 0x62cf), seq 1, ack 1, win 342,
    options [nop,nop,TS val 1027003124 ecr 1027003124], length 0!
    ! 0x0000: 4500 0034 a258 4000 4006 5c13 31d4 6c58!
    ͜ͷHello, World!͕ฦΔ·Ͱͷ௨৴Λ
    tcpdumpͰ؍࡯
    

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77. Flags [.], cksum 0x3c7f (incorrect -> 0x62cf), seq 1, ack 1, win 342,
    options [nop,nop,TS val 1027003124 ecr 1027003124], length 0!
    ! 0x0000: 4500 0034 a258 4000 4006 5c13 31d4 6c58!
    ! 0x0010: 31d4 6c58 e39c 1f90 7a92 70a4 1020 b765!
    ! 0x0020: 8010 0156 3c7f 0000 0101 080a 3d36 d2f4!
    ! 0x0030: 3d36 d2f4!
    13:55:02.907163 IP (tos 0x0, ttl 64, id 41561, offset 0, flags [DF],
    proto TCP (6), length 143)!
    www41050u.sakura.ne.jp.58268 > www41050u.sakura.ne.jp.http-alt:
    Flags [P.], cksum 0x3cda (incorrect -> 0x7b94), seq 1:92, ack 1, win
    342, options [nop,nop,TS val 1027003124 ecr 1027003124], length 91:
    HTTP, length: 91!
    ! GET / HTTP/1.1!
    ! Host: www41050u.sakura.ne.jp:8080!
    ! User-Agent: curl/7.43.0!
    ! Accept: */*!
    ! !
    ! 0x0000: 4500 008f a259 4000 4006 5bb7 31d4 6c58!
    ! 0x0010: 31d4 6c58 e39c 1f90 7a92 70a4 1020 b765!
    ! 0x0020: 8018 0156 3cda 0000 0101 080a 3d36 d2f4!
    ! 0x0030: 3d36 d2f4 4745 5420 2f20 4854 5450 2f31!
    ! 0x0040: 2e31 0d0a 486f 7374 3a20 7777 7734 3130!
    ! 0x0050: 3530 752e 7361 6b75 7261 2e6e 652e 6a70!
    ! 0x0060: 3a38 3038 300d 0a55 7365 722d 4167 656e!
    ! 0x0070: 743a 2063 7572 6c2f 372e 3433 2e30 0d0a!
    ! 0x0080: 4163 6365 7074 3a20 2a2f 2a0d 0a0d 0a!
    13:55:02.907175 IP (tos 0x0, ttl 64, id 26001, offset 0, flags [DF],
    ΫϥΠΞϯτ͔Βͷ
    ฏจϦΫΤετ
    

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78. Flags [.], cksum 0x3c7f (incorrect -> 0x6274), seq 1, ack 92, win 342,
    options [nop,nop,TS val 1027003124 ecr 1027003124], length 0!
    ! 0x0000: 4500 0034 6591 4000 4006 98da 31d4 6c58!
    ! 0x0010: 31d4 6c58 1f90 e39c 1020 b765 7a92 70ff!
    ! 0x0020: 8010 0156 3c7f 0000 0101 080a 3d36 d2f4!
    ! 0x0030: 3d36 d2f4!
    13:55:02.907332 IP (tos 0x0, ttl 64, id 26002, offset 0, flags [DF],
    proto TCP (6), length 214)!
    www41050u.sakura.ne.jp.http-alt > www41050u.sakura.ne.jp.58268:
    Flags [P.], cksum 0x3d21 (incorrect -> 0xc00f), seq 1:163, ack 92, win
    342, options [nop,nop,TS val 1027003124 ecr 1027003124], length 162:
    HTTP, length: 162!
    ! HTTP/1.1 301 Moved Permanently!
    ! Location: https://www41050u.sakura.ne.jp:8443/!
    ! Date: Sun, 04 Oct 2015 04:55:02 GMT!
    ! Connection: keep-alive!
    ! Content-Length: 0!
    ! !
    ! 0x0000: 4500 00d6 6592 4000 4006 9837 31d4 6c58!
    ! 0x0010: 31d4 6c58 1f90 e39c 1020 b765 7a92 70ff!
    ! 0x0020: 8018 0156 3d21 0000 0101 080a 3d36 d2f4!
    ! 0x0030: 3d36 d2f4 4854 5450 2f31 2e31 2033 3031!
    ! 0x0040: 204d 6f76 6564 2050 6572 6d61 6e65 6e74!
    ! 0x0050: 6c79 0d0a 4c6f 6361 7469 6f6e 3a20 6874!
    ! 0x0060: 7470 733a 2f2f 7777 7734 3130 3530 752e!
    ! 0x0070: 7361 6b75 7261 2e6e 652e 6a70 3a38 3434!
    αʔό͔Βͷ
    ʮTLSͰܨ͗௚ͤʯϨεϙϯε
    

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79. Flags [.], cksum 0x3c7f (incorrect -> 0x61ca), seq 92, ack 163, win
    350, options [nop,nop,TS val 1027003124 ecr 1027003124], length 0!
    ! 0x0000: 4500 0034 a25a 4000 4006 5c11 31d4 6c58!
    ! 0x0010: 31d4 6c58 e39c 1f90 7a92 70ff 1020 b807!
    ! 0x0020: 8010 015e 3c7f 0000 0101 080a 3d36 d2f4!
    ! 0x0030: 3d36 d2f4!
    13:55:02.915656 IP (tos 0x0, ttl 64, id 22547, offset 0, flags [DF],
    proto TCP (6), length 60)!
    www41050u.sakura.ne.jp.50461 > www41050u.sakura.ne.jp.8443: Flags
    [S], cksum 0x3c87 (incorrect -> 0x04f9), seq 3768879855, win 43690,
    options [mss 65495,sackOK,TS val 1027003132 ecr 0,nop,wscale 7],
    length 0!
    ! 0x0000: 4500 003c 5813 4000 4006 a650 31d4 6c58!
    ! 0x0010: 31d4 6c58 c51d 20fb e0a4 8aef 0000 0000!
    ! 0x0020: a002 aaaa 3c87 0000 0204 ffd7 0402 080a!
    ! 0x0030: 3d36 d2fc 0000 0000 0103 0307!
    13:55:02.915669 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF],
    proto TCP (6), length 60)!
    www41050u.sakura.ne.jp.8443 > www41050u.sakura.ne.jp.50461: Flags
    [S.], cksum 0x3c87 (incorrect -> 0xf1d1), seq 3389733079, ack
    3768879856, win 43690, options [mss 65495,sackOK,TS val 1027003132
    ecr 1027003132,nop,wscale 7], length 0!
    ! 0x0000: 4500 003c 0000 4000 4006 fe63 31d4 6c58!
    ! 0x0010: 31d4 6c58 20fb c51d ca0b 38d7 e0a4 8af0!
    ! 0x0020: a012 aaaa 3c87 0000 0204 ffd7 0402 080a!
    ! 0x0030: 3d36 d2fc 3d36 d2fc 0103 0307!
    ΫϥΠΞϯτ͔ΒͷTLSͷ઀ଓཁٻ
    

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80. ! 0x0010: 31d4 6c58 c51d 20fb e0a4 8af0 ca0b 38d8!
    ! 0x0020: 8010 0156 3c7f 0000 0101 080a 3d36 d2fc!
    ! 0x0030: 3d36 d2fc!
    13:55:02.927662 IP (tos 0x0, ttl 64, id 22549, offset 0, flags [DF],
    proto TCP (6), length 569)!
    www41050u.sakura.ne.jp.50461 > www41050u.sakura.ne.jp.8443: Flags
    [P.], cksum 0x3e84 (incorrect -> 0x4010), seq 1:518, ack 1, win 342,
    options [nop,nop,TS val 1027003144 ecr 1027003132], length 517!
    ! 0x0000: 4500 0239 5815 4000 4006 a451 31d4 6c58!
    ! 0x0010: 31d4 6c58 c51d 20fb e0a4 8af0 ca0b 38d8!
    ! 0x0020: 8018 0156 3e84 0000 0101 080a 3d36 d308!
    ! 0x0030: 3d36 d2fc 1603 0102 0001 0001 fc03 03ab!
    ! 0x0040: e5e2 86b6 2fb4 ee39 ea2b ff28 830b 307a!
    ! 0x0050: 807c f51a 6c3d 9012 6122 b87a b6a7 5a00!
    ! 0x0060: 00a0 c030 c02c c028 c024 c014 c00a 00a5!
    ! 0x0070: 00a3 00a1 009f 006b 006a 0069 0068 0039!
    ! 0x0080: 0038 0037 0036 0088 0087 0086 0085 c032!
    ! 0x0090: c02e c02a c026 c00f c005 009d 003d 0035!
    ! 0x00a0: 0084 c02f c02b c027 c023 c013 c009 00a4!
    ! 0x00b0: 00a2 00a0 009e 0067 0040 003f 003e 0033!
    ! 0x00c0: 0032 0031 0030 009a 0099 0098 0097 0045!
    ! 0x00d0: 0044 0043 0042 c031 c02d c029 c025 c00e!
    ! 0x00e0: c004 009c 003c 002f 0096 0041 0007 c012!
    ! 0x00f0: c008 0016 0013 0010 000d c00d c003 000a!
    ! 0x0100: 00ff 0100 0133 0000 001b 0019 0000 1677!
    ! 0x0110: 7777 3431 3035 3075 2e73 616b 7572 612e!
    ! 0x0120: 6e65 2e6a 7000 0b00 0403 0001 0200 0a00!
    ϓϦϚελγʔΫϨοτ
    

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81. [P.], cksum 0x3cb2 (incorrect -> 0x8f50), seq 929:980, ack 836, win
    359, options [nop,nop,TS val 1027003148 ecr 1027003145], length 51!
    ! 0x0000: 4500 0067 ea26 4000 4006 1412 31d4 6c58!
    ! 0x0010: 31d4 6c58 20fb c51d ca0b 3c78 e0a4 8e33!
    ! 0x0020: 8018 0167 3cb2 0000 0101 080a 3d36 d30c!
    ! 0x0030: 3d36 d309 1403 0300 0101 1603 0300 284b!
    ! 0x0040: 54b2 7c66 e641 15ea b1ac 4c0f 5ee4 6dad!
    ! 0x0050: 2c45 2228 f3d8 6acf 9b11 760c 9b53 6789!
    ! 0x0060: 5346 75cd d26f e0!
    13:55:02.931226 IP (tos 0x0, ttl 64, id 22552, offset 0, flags [DF],
    proto TCP (6), length 172)!
    www41050u.sakura.ne.jp.50461 > www41050u.sakura.ne.jp.8443: Flags
    [P.], cksum 0x3cf7 (incorrect -> 0xdfd4), seq 836:956, ack 980, win
    356, options [nop,nop,TS val 1027003148 ecr 1027003148], length 120!
    ! 0x0000: 4500 00ac 5818 4000 4006 a5db 31d4 6c58!
    ! 0x0010: 31d4 6c58 c51d 20fb e0a4 8e33 ca0b 3cab!
    ! 0x0020: 8018 0164 3cf7 0000 0101 080a 3d36 d30c!
    ! 0x0030: 3d36 d30c 1703 0300 739b 9377 77a5 eb88!
    ! 0x0040: 4cfa a634 de4e 8622 e62b 9866 c908 d0ab!
    ! 0x0050: d71b a211 f499 df04 359c 1e7f a782 d889!
    ! 0x0060: ee82 2248 1771 89dd 5b4d 9b3a 125b 18dd!
    ! 0x0070: 58b1 ad18 0b0a b3c1 4e19 2bcb 7a57 c007!
    ! 0x0080: b65d b991 fc89 33fb 61be 19cc 9904 b521!
    ! 0x0090: 83b1 e8c0 2807 773f 2ae6 bd8d 60e1 4442!
    ! 0x00a0: 2e79 b164 fa63 4955 85ce cdce!
    13:55:02.931411 IP (tos 0x0, ttl 64, id 59943, offset 0, flags [DF],
    proto TCP (6), length 221)!
    ҉߸Խ͞ΕͯಡΊͳ͘ͳ͍ͬͯΔ
    

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82. SPDY
    Google͕։ൃͨ͠
    HTTP/1.1ʹ୅ΘΔϓϩτίϧ
    SPDY/3.1·Ͱ࡞ΒΕͨޙ
    SPDY/4͸HTTP/2ʹ౷߹͞Εͨ
    ͢ͽʔͰ͌ʔ
    

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83. HTTP/1.1ͷԿ͕͍͚ͳ͔ͬͨͷ͔
    )5.-
    ελΠϧγʔτ
    ը૾
    +BWB4DSJQU
    ಈը
    9.-)UUQ3FRVFTU
    ࠓ೔ͷWeb͸HTML͚ͩͰ׬݁͢Δࣄ͸كͰ
    ଓ͚͍ͯΖ͍Ζͳ෺ΛGET͢Δඞཁ͕͋Δ
    

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84. ΫϥΠΞϯτ αʔό
    ͘Ε
    ͘Ε
    ͘Ε
    ͕࣌ؒ
    ͔͔Γ͗͢Δ
    RTT
    

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85. ΫϥΠΞϯτ αʔό
    ͘Ε
    ͘Ε
    ͘Ε
    HTTP͸ϦΫΤετͱϨεϙϯεΛ
    ަޓʹ౤͛͋͏ϓϩτίϧͳҝ
    1ຊͷηογϣϯͰ͜ΕΛ࣮ݱͰ͖ͳ͍
    ͜͏͍ͨ͠
    

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86. ड͚औΓ͍ͨ෺ͷ਺͚ͩηογϣϯΛுΕ͹
    ϦΫΤετΛ౤͛ͳ͕Βड৴ग़དྷΔΑ
    ΫϥΠΞϯτ αʔό
    ΛૹΔ༻ηογϣϯ
    ΛૹΔ༻ηογϣϯ
    ΛૹΔ༻ηογϣϯ
    Ұੲલͷϒϥ΢βͰྲྀߦͬͨςΫχοΫ
    

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87. ͍͚ͯͳ͍఺
    େྔʹுΒΕͨηογϣϯ͸
    ޓ͍Λ஌Βͳ͍ҝ
    ద੾ͳ2P4͕࣮ݱग़དྷͳ͍
    ͍͚ͯͳ͍఺
    ͦ΋ͦ΋5$1ͷηογϣϯ਺͸
    γεςϜͷݶΒΕͨࢿݯ
    ड͚औΓ͍ͨ෺ͷ਺͚ͩηογϣϯΛுΕ͹
    ϦΫΤετΛ౤͛ͳ͕Βड৴ग़དྷΔΑ
    

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88. SPDY͸1ຊͷηογϣϯͷ্ʹ
    ༏ઌ౓͕ઃఆ͞Εͨ
    ෳ਺ͷετϦʔϜΛ࡞Γ
    !
    ͦͷ্ʹHTTPͱಉ͡৘ใΛྲྀ͢
    ΫϥΠΞϯτ αʔό
    ηογϣϯ
    

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89. bool is_tls;!
    };!
    class factory : public proxygen::RequestHandlerFactory {!
    public:!
    void onServerStart() noexcept override {}!
    void onServerStop() noexcept override {}!
    proxygen::RequestHandler* onRequest(!
    proxygen::RequestHandler*, proxygen::HTTPMessage*!
    ) noexcept override { return new handler(); }!
    };!
    int main( int argc, char* argv[] ) {!
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {!
    { folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP },!
    { folly::SocketAddress( "www41050u.sakura.ne.jp", 8443, true ),!
    proxygen::HTTPServer::Protocol::SPDY },!
    };!
    wangle::SSLContextConfig ssl;!
    ssl.isDefault = true;!
    ssl.setCertificate(!
    "./server.crt",!
    "./server.key",!
    "./password"!
    );!
    IPs.back().sslConfigs.push_back( ssl );!
    proxygen::HTTPServerOptions options;!
    options.handlerFactories =!
    ͳΜͱ!
    Proxygen͸SPDYʹରԠ͍ͯ͠Δ
    ͜ͷΞυϨεͰ
    41%:ͷ઀ଓΛ଴ͪड͚Δ
    

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90. ͋ͱ͸SPDYରԠͷϒϥ΢βͰ
    ΞΫηε͢Ε͹ϓϩτίϧ͕SPDYʹ
    ͳͬͯͳ͍!
    

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91. ΫϥΠΞϯτ αʔό
    )551
    )551
    ΫϥΠΞϯτ αʔό
    41%:
    41%:
    SPDYαʔό͸ΫϥΠΞϯτ͕HTTP/1.1Λ
    ஻ͬͨ৔߹͸HTTPαʔόͱͯ͠ৼΔ෣͏
    

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92. ΫϥΠΞϯτ αʔό
    )551
    )551
    ૬ख͸ී௨ͷ
    HTTPαʔόͩͱࢥͬͯΔ
    ૬ख͕HTTP஻ͬͯΔ͔Β
    SPDY஻Εͳ͍ࢠͩͱࢥͬͯΔ
    αʔό͔ΒΫϥΠΞϯτʹ
    SPDY͕࢖͑ΔࣄΛ௨஌͢Δඞཁ͕͋Δ
    

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93. NPN
    /FYU1SPUPDPM/FHPUJBUJPO
    TLSͷ֦ு
    ϋϯυγΣΠΫ࣌ʹ
    αʔό͕ରԠ͍ͯ͠ΔϓϩτίϧͷϦετΛ
    ΫϥΠΞϯτʹૹΔ
    

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94. NPN͕ͳ͍࣌
    ΫϥΠΞϯτ αʔό
    ͜ͷ҉߸͕࢖͑ΔΑ
    ҉߸Խͨ͠
    ϓϦϚελγʔΫϨοτͩΑ
    ͜Ε͕ূ໌ॻͩΑ
    ४උͰ͖ͨΘ
    ४උͰ͖ͨΘ
    伴ੜ੒ 伴ੜ੒
    αʔό͕
    ຊ෺͔֬ೝ
    

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95. NPN͕͋Δ࣌
    ΫϥΠΞϯτ αʔό
    ͜ͷ҉߸͕࢖͑ΔΑ
    (ͱ͜ΖͰϓϩτίϧԿ͍͚Δ?)
    ҉߸Խͨ͠
    ϓϦϚελγʔΫϨοτͩΑ
    ͜Ε͕ূ໌ॻͩΑ
    (HTTP/1.1͔SPDY/3͕͍͚Δͥ)
    ४උͰ͖ͨΘ
    (Μ͡ΌSPDY/3ͰΑΖ)
    ४උͰ͖ͨΘ
    伴ੜ੒ 伴ੜ੒
    αʔό͕
    ຊ෺͔֬ೝ
    ϓϩτίϧ
    ܾఆ
    

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96. int main( int argc, char* argv[] ) {!
    std::vector< proxygen::HTTPServer::IPConfig > IPs = {!
    { folly::SocketAddress( "www41050u.sakura.ne.jp", 8080, true ),!
    proxygen::HTTPServer::Protocol::HTTP },!
    { folly::SocketAddress( "www41050u.sakura.ne.jp", 8443, true ),!
    proxygen::HTTPServer::Protocol::SPDY },!
    };!
    wangle::SSLContextConfig ssl;!
    ssl.isDefault = true;!
    ssl.setCertificate(!
    "./server.crt",!
    "./server.key",!
    "./password"!
    );!
    std::list< std::string > nps;!
    nps.push_back( "spdy/3.1-hpack" );!
    nps.push_back( "spdy/3.1" );!
    nps.push_back( "spdy/3" );!
    nps.push_back( "http/1.1" );!
    ssl.setNextProtocols( nps );!
    IPs.back().sslConfigs.push_back( ssl );!
    proxygen::HTTPServerOptions options;!
    options.handlerFactories =!
    proxygen::RequestHandlerChain().addThen< factory >().build();!
    proxygen::HTTPServer server( std::move( options ) );!
    server.bind( IPs );!
    Proxygen͔ΒOpenSSLʹ
    NPNΛૹΔΑ͏ʹࢦࣔ͢Δ
    SPDY͍͚ΔΑ!
    

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97. ͋ͱ͸SPDYରԠͷϒϥ΢βͰ
    ΞΫηε͢Ε͹ϓϩτίϧ͕SPDYʹ
    ͳͬͨ!
    

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98. #include !
    #include !
    #include !
    #include !
    class handler : public proxygen::RequestHandler {!
    public:!
    void onRequest(!
    std::unique_ptr headers!
    ) noexcept override {!
    is_tls = headers->isSecure();!
    std::cout << int( headers->getPriority() ) << std::endl;!
    }!
    void onBody(std::unique_ptr body) noexcept override {}!
    void onEOM() noexcept override {!
    proxygen::ResponseBuilder tx( downstream_ );!
    if( is_tls ) { !
    tx.status( 200, "OK" ).header( "Content-Type", "text/plain" );!
    tx.body( "Hello, World!\n" ).sendWithEOM();!
    } !
    else {!
    tx.status( 301, "Moved Permanently" );!
    tx.header( "Location", "https://www41050u.sakura.ne.jp:8443/" );!
    tx.sendWithEOM();!
    } !
    }!
    void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {}!
    SPDYͰ௨৴த͸ϦΫΤετͷ
    HTTPMessage::getPriority()Ͱ༏ઌ౓͕औΕΔ
    ./spdy_sample
    0!
    2
    ຊମ͘Εɺࠓ͙͢
    GBWJDPO͘Εɺ஗ͯ͘΋ྑ͍
    

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99. WebSocket
    

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100. ΫϥΠΞϯτ αʔό
     ৽ண͋ΔΑ
     ӾཡதͷWebϖʔδʹߋ৽͕͋ͬͨΒ
     ௚ͪʹ൓ө͍ͨ͠
     

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101. ݹయతͳղܾํ๏
     ΫϥΠΞϯτ αʔό
     ϙʔϦϯάִؒΛڱΊΔͱαʔό͕ࢮ͵
     ϙʔϦϯάִؒΛ৳͹͢ͱ௨஌͕஗ΕΔ
     ৽ண͋Δ?
     ৽ண͋Δ?
     ৽ண͋Δ?
     ͳ͍
     ͳ͍
     ͋Δ ৽ண
     

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102. Comet
     ΫϥΠΞϯτ αʔό
     αʔό͸௨஌͢΂͖෺͕དྷΔ·Ͱ
     ΫϥΠΞϯτ͔ΒͷϦΫΤετʹฦ౴͠ͳ͍
     ΫϥΠΞϯτ͸Ϩεϙϯε͕དྷͨΒ͙͢ʹϦΫΤετ͢Δ
     ৽ண͋Δ?
     ࠓདྷͨ
     ʜ
     ৽ண
     

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103. Comet
     ΫϥΠΞϯτ αʔό
     αʔό͸௨஌͢΂͖෺͕དྷΔ·Ͱ
     ΫϥΠΞϯτ͔ΒͷϦΫΤετʹฦ౴͠ͳ͍
     ΫϥΠΞϯτ͸Ϩεϙϯε͕དྷͨΒ͙͢ʹϦΫΤετ͢Δ
     ৽ண͋Δ?
     ࠓདྷͨ
     ʜ
     ৽ண
     ͜Ε͸΋͸΍ϦΫΤετͰ͸ͳ͍
     ͜Ε͸΋͸΍ϨεϙϯεͰ͸ͳ͍
     

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104. HTTPͷ࿮ͷதͰ
     ղܾ͠Α͏ͱ͢Δͷ͕
     ؒҧ͍ͳͷͰ͸
     

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105. HTTPΛ஻ΔͷΛ΍Ίͯ
     WebαʔόͱΫϥΠΞϯτͷؒͰ
     ೚ҙͷλΠϛϯάͰ೚ҙͷσʔλΛ
     ౤͛͋͑ΔΑ͏ʹ͢Δ
     WebSocket
     ΫϥΠΞϯτ αʔό
     ࠓདྷͨ(౜ಥ) ৽ண
     

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106. Proxygenͷpull requestʹ
     WebSocketʹରԠͤ͞Δมߋ͕స͕͍ͬͯΔ
     

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107. #include !
     #include !
     #include !
     #include !
     #include !
     #include !
     #include !
     #include !
     #include !
     #include !
     #include !
     !
     #include !
     #include !
     #include !
     #include !
     #include !
     #include !
     #include !
     #include !
     !
     struct no_such_file {};!
     !
     class static_files {!
     public:!
     static_files() {}!
     static_files( const static_files& ) = delete;!
     static_files( static_files&& ) = delete;!
     static_files &operator=( const static_files& ) = delete;!
     WebSocketΛ࢖͏αʔό
     ௕͍ͷͰޙͰgithub͋ͨΓʹ্͓͖͛ͯ·͢
     

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108. std::unordered_map< const proxygen::RequestHandler*, connection_state >
     sockets;!
     std::mutex guard;!
     };!
     class hello : public proxygen::RequestHandler {!
     public:!
     explicit hello( const static_files &files_, broadcaster &broad_ ) : files(
     files_ ), broad( broad_ ), is_ws( false ) {}!
     void onRequest( std::unique_ptr headers ) noexcept
     override {!
     if(proxygen::WebSocket::isWebSocketRequest(*headers)) {!
     broad.open( this,
     std::move(proxygen::WebSocket::acceptWebSocket(downstream_, *headers,
     std::bind( &broadcaster::receive, &broad, this, std::placeholders::_1))) );!
     is_ws = true;!
     }!
     else!
     file = files[ headers->getPath() ];!
     }!
     void onBody(std::unique_ptr body) noexcept override {!
     if(is_ws) {!
     broad.processData( this, std::move(body));!
     }!
     }!
     void onEOM() noexcept override {!
     if(is_ws)!
     return;!
     proxygen::ResponseBuilder tx( downstream_ );!
     if( file ) {!
     tx.status( 200, "OK" )!
     onRequestͰ
     WebSocket΁ͷUPGRADE͔Λௐ΂ͯ
     WebSocketͩͬͨΒ
     proxygen::WebSocket::acceptWebSocket
     ͜ͷ࣌WebSocketͷΠϕϯτͰݺͼग़͞ΕΔ
     ίʔϧόοΫΛઃఆ͢Δ
     

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109. for( auto &receiver: receivers )!
     receiver->sendFrame( frame->frameType,
     folly::IOBuf::maybeCopyBuffer( data ), frame->endOfMessage );!
     return true;!
     }!
     void processData( const proxygen::RequestHandler*k,
     std::unique_ptr body ) {!
     auto search_result = sockets.find( k );!
     std::shared_ptr< proxygen::WebSocket > socket;!
     {!
     std::lock_guard< std::mutex > lock( guard );!
     if( search_result != sockets.end() ) {!
     if( search_result->second.message_revision == 0ull )!
     search_result->second.message_revision = ++revision;!
     socket = search_result->second.socket;!
     }!
     }!
     if( socket ) socket->processData( std::move( body ) );!
     }!
     private:!
     revision_t revision;!
     std::unordered_map< const proxygen::RequestHandler*, connection_state >
     sockets;!
     std::mutex guard;!
     };!
     class hello : public proxygen::RequestHandler {!
     public:!
     explicit hello( const static_files &files_, broadcaster &broad_ ) : files(
     files_ ), broad( broad_ ), is_ws( false ) {}!
     onBodyͰWebSocketͷσʔλ͕དྷͨΒ
     WebSocketͷΠϯελϯεʹ·Θ͢
     

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110. void onBody(std::unique_ptr body) noexcept override {!
     if(is_ws) {!
     broad.processData( this, std::move(body));!
     }!
     }!
     void onEOM() noexcept override {!
     if(is_ws)!
     return;!
     proxygen::ResponseBuilder tx( downstream_ );!
     if( file ) {!
     tx.status( 200, "OK" )!
     .header( "Hoge", "fuga" )!
     .header( "Content-Type", file->first )!
     .body( file->second )!
     .sendWithEOM();!
     }!
     else {!
     tx.status( 404, "File Not Found" )!
     .header( "Hoge", "fuga" )!
     .body( "" )!
     .sendWithEOM();!
     }!
     }!
     void onUpgrade(proxygen::UpgradeProtocol proto) noexcept override {!
     }!
     void requestComplete() noexcept override {!
     if(is_ws)!
     broad.close( this );!
     delete this;!
     WebSocketͰ࢖ͬͨηογϣϯ͸
     onEOMͰԿ΋ฦ͞ͳ͍
     

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111. std::unique_ptr frame ) {!
     const std::string data = std::string( frame->payload->data(), frame-
     >payload->tail() );!
     std::vector< std::shared_ptr< proxygen::WebSocket > > receivers;!
     if( !data.empty() ) {!
     std::lock_guard< std::mutex > lock( guard );!
     auto search_result = sockets.find( k );!
     if( search_result != sockets.end() ) {!
     revision_t highest_revision = search_result-
     >second.message_revision;!
     for( auto &socket: sockets )!
     if( socket.second.joined_at < highest_revision )!
     receivers.emplace_back( socket.second.socket );!
     }!
     if( frame->endOfMessage )!
     search_result->second.message_revision = 0ull;!
     }!
     for( auto &receiver: receivers )!
     receiver->sendFrame( frame->frameType,
     folly::IOBuf::maybeCopyBuffer( data ), frame->endOfMessage );!
     return true;!
     }!
     void processData( const proxygen::RequestHandler*k,
     std::unique_ptr body ) {!
     auto search_result = sockets.find( k );!
     std::shared_ptr< proxygen::WebSocket > socket;!
     {!
     std::lock_guard< std::mutex > lock( guard );!
     if( search_result != sockets.end() ) {!
     if( search_result->second.message_revision == 0ull )!
     SendFrame()ͰΫϥΠΞϯτʹσʔλΛૹΔ
     

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112. WebSocketΛ࢖ͬͨνϟοτͷσϞ
     ΠϚυΩͷϒϥ΢β͕खݩʹ͋Δํ͸
     IUUQXXXVTBLVSBOFKQ
     ʹΞΫηεͯ͠ΈͯԼ͍͞
     

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113. ࣮૷ͷҰ෦΍ςετ͕֬ೝग़དྷΔ͕
     HTTPServer͔Β࢖͑Δঢ়ଶʹ
     ͳ͍ͬͯͳ͍ػೳ
     

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114. ServerPush
     

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115. ΫϥΠΞϯτ αʔό
     ͘Ε
     ͘Ε
     ͘Ε
     HTMLΛύʔεͯ͠ΈΔ·Ͱඞཁͳը૾౳͕෼͔Βͣ
     ͜ͷؒଞͷϑΝΠϧͷϩʔυΛಉ࣌ਐߦͰ͖ͳ͍
     ͕͜͜
     Ψϥۭ͖ʹ
     ͳΔ
     ͜͜Ͱ
     ඞཁͳը૾౳͕
     ෼͔Δ
     

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116. ͜͜Ͱ
     ඞཁͳը૾౳͕
     ෼͔Δ
     ΫϥΠΞϯτ αʔό
     ͘Ε
     ͓લ͸࣍ʹ
     ը૾ͱ$44͕ཉ͍͠ͱ
     ݴ͍ग़ͩ͢Ζ͏
     ը૾౳Λ
     (&5͠Α͏ͱ
     ࢥͬͨΒ
     Կނ͔΋͏͋Δ
     SPDY͸ϦΫΤετ͞ΕΔલʹϨεϙϯεΛฦ͢
     ServerPushͰ͜ͷ໰୊Λղܾ͢Δ
     

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117. /**!
     * @return true iff this transaction can be used to push resources to!
     * the remote side.!
     */!
     bool supportsPushTransactions() const {!
     return direction_ == TransportDirection::DOWNSTREAM &&!
     transport_.getCodec().supportsPushTransactions();!
     }!
     !
     /** !
     * Create a new pushed transaction associated with this transaction,!
     * and assign the given handler and priority.!
     *!
     * @return the new transaction for the push, or nullptr if a new push!
     * transaction is impossible right now.!
     */!
     virtual HTTPTransaction* newPushedTransaction(!
     HTTPPushTransactionHandler* handler, uint8_t priority) {!
     if (isEgressEOMSeen()) {!
     return nullptr;!
     } !
     auto txn = transport_.newPushedTransaction(id_, handler, priority);!
     if (txn) {!
     pushedTransactions_.insert(txn->getID());!
     } !
     return txn; !
     }!
     !
     /** !
     * Invoked by the session (upstream only) when a new pushed transaction!
     Proxygenͷ಺෦ͷਵॴʹServer PushͷҝͱࢥΘΕΔ
     ؔ਺͕༻ҙ͞Ε͍ͯΔ
     

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118. XBOHMF
     )551$PEFD 41%:$PEFD
     )5515SBOTBDUJPO
     )5514FSWFS
     ඇಉظ*0
     ݸʑͷϓϩτίϧͰͷ
     )551ϝοηʔδͷૢ࡞
     ϓϩτίϧඇґଘͷ
     )551ϝοηʔδͷૢ࡞
     ͜ͷลΓʹ͸
     Server Pushͷ࣮૷Β͖͠෺͕͋Δ
     HTTP Server͔ΒServer PushΛ
     ୟ͘࢓૊Έ͕ݟ౰ͨΒͳ͍
     ֎޲͖ͷ"1*
     

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119. Trailer
     ϔομ
     ຊจ
     &OEPG.FTTBHF
     τϨΠϥ
     HTTPϨεϙϯεͷ
     ϔομͷҰ෦Λ
     ຊจΑΓޙΖʹ
     ॻ͘࢓૊Έ
     ຊจੜ੒ͯ͠Έͳ͍ͱ
     ஋͕ఆ·Βͳ͍
     νΣοΫαϜ౳ʹ࢖͏
     

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120. void onTrailersComplete(HTTPCodec::StreamID streamID,!
     std::unique_ptr trailers) override;!
     void onMessageComplete(HTTPCodec::StreamID streamID, bool upgrade)
     override;!
     void onError(HTTPCodec::StreamID streamID,!
     const HTTPException& error, bool newTxn) override;!
     void onAbort(HTTPCodec::StreamID streamID,!
     ErrorCode code) override;!
     void onGoaway(uint64_t lastGoodStreamID,!
     ErrorCode code) override;!
     void onPingRequest(uint64_t uniqueID) override;!
     void onPingReply(uint64_t uniqueID) override;!
     void onWindowUpdate(HTTPCodec::StreamID stream, uint32_t amount) override;!
     …!
     // HTTPTransaction::Transport methods!
     void pauseIngress(HTTPTransaction* txn) noexcept override;!
     void resumeIngress(HTTPTransaction* txn) noexcept override;!
     void transactionTimeout(HTTPTransaction* txn) noexcept override;!
     void sendHeaders(HTTPTransaction* txn,!
     const HTTPMessage& headers,!
     HTTPHeaderSize* size) noexcept override;!
     size_t sendBody(HTTPTransaction* txn, std::unique_ptr,!
     bool includeEOM) noexcept override;!
     size_t sendChunkHeader(HTTPTransaction* txn,!
     size_t length) noexcept override;!
     size_t sendChunkTerminator(HTTPTransaction* txn) noexcept override;!
     size_t sendTrailers(HTTPTransaction* txn,!
     const HTTPHeaders& trailers) noexcept override;!
     size_t sendEOM(HTTPTransaction* txn) noexcept override;!
     Trailerૹ৴ͷҝͷؔ਺ͱࢥ͖͠෺͕
     HTTPSessionͷதʹ͋Δ
     

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121. XBOHMF
     )551$PEFD 41%:$PEFD
     )5514FTTJPO
     )5514FSWFS
     ඇಉظ*0
     ݸʑͷϓϩτίϧͰͷ
     )551ϝοηʔδͷૢ࡞
     ϓϩτίϧඇґଘͷ
     )551ϝοηʔδͷૢ࡞
     ֎޲͖ͷ"1*
     ͜ͷลΓʹ͸
     Trailerͷ࣮૷Β͖͠෺͕͋Δ
     HTTP ServerͷResponseBuilderͰ
     TrailerΛ࡞Δ࢓૊Έ͕ݟ౰ͨΒͳ͍
     

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122. HTTP/2
     41%:ͷొ৔Λड͚ͯ
     ೥ͿΓʹվగ͞Εͨ)551
     ຊͷηογϣϯʹෳ਺ͷετϦʔϜ
     ΫϥΠΞϯτ αʔό
     ηογϣϯ
     4FSWFS1VTIʹରԠ
     ϔομͷѹॖͱࠩ෼ૹ৴ʹରԠ
     

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123. SPDYऴྃͷ͓஌Βͤ
     ࣍ੈ୅HTTPͷ࣮ݧͱͯ͠࡞ΒΕͨSPDY͸
     HTTP/2ͷඪ४ԽͰ໾໨Λऴ͑ͨͱݟ၏͞Ε͓ͯΓ
     Google͸2016೥ͷૣ͍͏ͪʹ
     ChromeͷSPDYαϙʔτΛऴྃ͢Δͱ͍ͯ͠Δ
     ͳΜͯͬͨ͜!
     ProxygenͰ࡞ͬͨWebαΠτ΋
     HTTP/2ʹ͠ͳ͖Ό
     IUUQCMPHDISPNJVNPSHIFMMPIUUQ
     HPPECZFTQEZIUUQJT@IUNM
     

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124. /**!
     * An implementation of the framing layer for HTTP/2. Instances of this!
     * class must not be used from multiple threads concurrently.!
     */!
     class HTTP2Codec: public HTTPParallelCodec, HeaderCodec::StreamingCallback {!
     public:!
     void onHeader(const std::string& name,!
     const std::string& value) override;!
     void onHeadersComplete() override;!
     void onDecodeError(HeaderDecodeError decodeError) override;!
     !
     explicit HTTP2Codec(TransportDirection direction);!
     ~HTTP2Codec() override;!
     !
     // HTTPCodec API!
     CodecProtocol getProtocol() const override {!
     return CodecProtocol::HTTP_2;!
     }!
     !
     size_t onIngress(const folly::IOBuf& buf) override;!
     size_t generateConnectionPreface(folly::IOBufQueue& writeBuf) override;!
     void generateHeader(folly::IOBufQueue& writeBuf,!
     StreamID stream,!
     const HTTPMessage& msg,!
     StreamID assocStream = 0,!
     bool eom = false,!
     HTTPHeaderSize* size = nullptr) override;!
     size_t generateBody(folly::IOBufQueue& writeBuf,!
     StreamID stream,!
     HTTP/2ͷϦΫΤετΛύʔεͨ͠Γ
     ϨεϙϯεΛੜ੒͢Δ HTTP2Codec
     

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125. XBOHMF
     )551$PEFD 41%:$PEFD
     )5515SBOTBDUJPO
     )5514FSWFS
     ΋͔ͯ͠͠
     ΋͏࢖͑Δ?
     )551$PEFD
     

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126. HTTP/2͸HTTP/1.1͔Βͷ੾Γସ͑ʹ
     NPNͰ͸ͳ͘ALPNΛ࢖͏
     ALPN
     Application Layer Protocol Negotiation
     TLSͷ֦ு
     ϋϯυγΣΠΫ࣌ʹ
     ΫϥΠΞϯτ͕ରԠ͍ͯ͠ΔϓϩτίϧͷϦετΛ
     αʔόʹૹΔ
     

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127. NPN
     ΫϥΠΞϯτ αʔό
     ͜ͷ҉߸͕࢖͑ΔΑ
     (ͱ͜ΖͰϓϩτίϧԿ͍͚Δ?)
     ҉߸Խͨ͠
     ϓϦϚελγʔΫϨοτͩΑ
     ͜Ε͕ূ໌ॻͩΑ
     (HTTP/1.1͔SPDY/3͕͍͚Δͥ)
     ४උͰ͖ͨΘ
     (Μ͡ΌSPDY/3ͰΑΖ)
     ४උͰ͖ͨΘ
     伴ੜ੒ 伴ੜ੒
     αʔό͕
     ຊ෺͔֬ೝ
     ϓϩτίϧ
     ܾఆ
     

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128. ALPN
     ͜ͷ҉߸͕࢖͑ΔΑ
     (Զ࣮͸HTTP/2͍͚ΔΜͩΑͶ)
     ҉߸Խͨ͠
     ϓϦϚελγʔΫϨοτͩΑ
     ͜Ε͕ূ໌ॻͩΑ
     (͡Ό͋HTTP/2ͰΑΖ)
     ४උͰ͖ͨΘ
     ४උͰ͖ͨΘ
     伴ੜ੒ 伴ੜ੒
     αʔό͕
     ຊ෺͔֬ೝ
     ϓϩτίϧ
     ܾఆ
     ΫϥΠΞϯτ αʔό
     

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129. ALPN
     ͜ͷ҉߸͕࢖͑ΔΑ
     (Զ࣮͸HTTP/2͍͚ΔΜͩΑͶ)
     ҉߸Խͨ͠
     ϓϦϚελγʔΫϨοτͩΑ
     ͜Ε͕ূ໌ॻͩΑ
     (͡Ό͋HTTP/2ͰΑΖ)
     ४උͰ͖ͨΘ
     ४උͰ͖ͨΘ
     伴ੜ੒ 伴ੜ੒
     αʔό͕
     ຊ෺͔֬ೝ
     ϓϩτίϧ
     ܾఆ
     ΫϥΠΞϯτ αʔό
     ࢖͑Δϓϩτίϧ͕ແ͔ͬͨ৔߹ʹ
     TLSͷ伴ੜ੒ʹೖΔલʹ઀ଓΛ੾ΕΔ
     

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130. Proxygenʹ͸
     ALPNΛૹΔҝͷ࢓૊Έ͕ݟ౰ͨΒͳ͍
     ͓ͦΒ͘ProxygenͷHTTP/2ͷ࣮૷͸
     ϦΫΤετͱϨεϙϯεͷύʔε͸ग़དྷΔ͕
     ࣮ࡍʹΫϥΠΞϯτ͔Βͷ௨৴Λ
     ड͚෇͚ΒΕΔॴ·Ͱ͸࣮૷͞Ε͍ͯͳ͍
     (2015೥10݄8೔࣌఺)
     

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131. ·ͱΊ
     C++ͳWebϑϨʔϜϫʔΫProxygen
     TLSͰ͖ΔΑ
     SPDY΋Ͱ͖ΔΑ
     WebSocket΋ҰԠͰ͖ΔΑ
     HTTP/2͸·ͩͩΑ
     

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