HTTP/2 глазами потребителя

Артём Малышев (Software Engineer @ Advance) @ Moscow Python Conf 2017
"Протокол HTTP/2 поддерживается всеми современными браузерами. Google performance team пропагандирует его адаптацию. Всё больше известных сайтов начинают предоставлять его поддержку наравне с обычным HTTP. Доклад о том, зачем нам это всё надо, какие преимущества в целом даёт и как это готовить в питоне. Да, про Django тоже будет".
Видео: https://conf.python.ru/http2-glazami-potrebitelya/

Transcript

1. 1
   HTTP/2
   ARTEM MALYSHEV
   @PROOFIT404
   

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2. 2
   WHY?
   HTTP/1 is the power
   running Internet
   

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3. 3
   HTTP/1 PROBLEMS
   Designed over 20 years ago
   Have 6 RFC at that moment
   Network inef cient
   Text-based
   

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4. 4
   BUT WE LIKE WORKAROUNDS
   Image sprites
   Custom fonts
   Inline resources
   Resource concatenation
   Sharding
   

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5. 5
   HTTP/2
   Replacement for how HTTP/1
   is expressed “on the wire”
   

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6. 6
   HISTORY
   Proposed Standard in December 2014
   SPDY successor
   Initially developed by Google
   

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7. 7
   PRINCIPLES
   Binary protocol
   Multiplexing
   Prioritization
   Flow control
   Headers compression
   Stream termination support
   Server push
   

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9. 9
   IMPLEMENTATIONS
   Ace Aerys Akamai GHost Apache Tomcat http4s-blaze
   Brocade Traf c Manager Chatterbox Chromium libcurl
   Deuterium E2 Systems PATH Ericsson MSP F5 GFE H2O
   hpack http2dotnet HttpTwo httpbis hyper Shaka Jetty
   LiteSpeed Enterprise Microsoft Internet Explorer mod_h2
   Mozilla Firefox Netty nghttp2 Radware node-http2 OkHttp
   River Sasazka second-transfer ShimmerCat SuaveIO Swoole
   Trusterd Twitter Undertow Vert.x WASD Warp Wireshark
   WKWebView cashpack proxygen re y
   

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11. 11
    CORY BENFIELD
    

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12. 12
    GENERATING TLS SERT
    openssl req -x509 \
    -newkey rsa:4096 \
    -days 365 -nodes \
    -keyout key.pem \
    -out cert.pem
    

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13. 13
    H2
    from h2.connection import H2Connection
    conn = H2Connection(client_side=False)
    conn.initiate_connection()
    sock.sendall(conn.data_to_send())
    data = sock.recv(65535)
    events = conn.receive_data(data)
    for event in events:
    ...
    

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14. 14
    QUART
    from quart import *
    app = Quart(__name__)
    @app.route('/')
    async def index():
    result = await render_template('index.html')
    response = await make_response(result)
    response.push_promises.update([
    url_for('static', 'bootstrap.min.css'),
    url_for('static', 'bootstrap.min.js'),
    url_for('static', 'jquery.min.js'),
    ])
    return response
    

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15. 15
    TWISTED
    from twisted import *
    root = Resource()
    root.putChild(b'', File('index.html'))
    root.putChild(b'static', File('static'))
    site = server.Site(root)
    server = endpoints.serverFromString(
    reactor,
    "ssl:privateKey=key.pem:certKey=cert.pem",
    )
    server.listen(site)
    reactor.run()
    

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16. 16
    MITMPROXY
    

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18. 18
    RUNNING DAPHNE
    daphne \
    --ssl \
    --port=8000 \
    --privateKey=key.pem \
    --certKey=cert.pem \
    project.asgi:channel_layer
    

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19. 19
    DJANGO ADMIN
    

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20. 20
    TRUE STORY
    

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21. 21
    RESOURCES
    http2.github.io
    Hyper H2
    How to serve http 2 using python
    An overview of HTTP/2 with Daniel Sommermann
    

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22. 22
    QUESTIONS?
    

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