64 lines
1.7 KiB
PHP
64 lines
1.7 KiB
PHP
<?php
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namespace NoccyLabs\React\Http2;
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use NoccyLabs\React\Http2\Connection\Http2Connection;
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use NoccyLabs\React\Http2\Frame\SettingsFrame;
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use Psr\Http\Message\ServerRequestInterface;
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use React\Stream\DuplexResourceStream;
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use React\Stream\DuplexStreamInterface;
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use React\Stream\ThroughStream;
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use SplObjectStorage;
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class Http2Middleware
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{
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/** @var SplObjectStorage<Http2Connection> Active connections */
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private SplObjectStorage $connections;
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public function __construct()
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{
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$this->connections = new SplObjectStorage();
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}
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public function __invoke(ServerRequestInterface $request, ?callable $next=null)
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{
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// expect upgrade h2 for secure connections, h2c for plaintext
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// TODO handle HTTP/2 upgrade from HTTP/1.1
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// TODO handle HTTP/2 with prior knowledge
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}
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/**
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* Parse the settings frame present in the HTTP/1.1 upgrade request.
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*
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* @param string $settings
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* @return SettingsFrame
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*/
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private function parseSettingsFromBase64String(string $settings): SettingsFrame
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{
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$decoded = base64_decode($settings);
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$frame = new SettingsFrame();
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$frame->fromBinary($decoded);
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return $frame;
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}
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/**
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* Prepare a connection for the HTTP/2 session.
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*
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* @param ServerRequestInterface $request
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* @return Http2Connection
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*/
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private function setupConnection(ServerRequestInterface $request): Http2Connection
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{
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$stream = new ThroughStream();
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$connection = new Http2Connection($stream);
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$this->connections->attach($connection);
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$connection->on('close', function () use ($connection) {
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$this->connections->detach($connection);
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});
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return $connection;
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}
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} |