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vendor/react/socket/examples/22-http-client.php

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+<?php
+
+// Simple plaintext HTTP and secure HTTPS client example (for illustration purposes only).
+// This shows how an URI parameter can parsed to decide whether to establish
+// a plaintext TCP/IP or secure TLS connection and then send an
+// application level protocol message (HTTP).
+// Real applications should use react/http-client instead!
+//
+// Unlike examples #11 and #12, this example will actually take an optional URI
+// parameter and parse it to connect to the correct default port and use the
+// correct transport protocol.
+//
+// $ php examples/22-http-client.php
+// $ php examples/22-http-client.php https://reactphp.org/
+
+use React\EventLoop\Factory;
+use React\Socket\ConnectionInterface;
+use React\Socket\Connector;
+use React\Stream\WritableResourceStream;
+
+require __DIR__ . '/../vendor/autoload.php';
+
+$uri = isset($argv[1]) ? $argv[1] : 'www.google.com';
+
+if (strpos($uri, '://') === false) {
+    $uri = 'http://' . $uri;
+}
+$parts = parse_url($uri);
+
+if (!$parts || !isset($parts['scheme'], $parts['host'])) {
+    fwrite(STDERR, 'Usage error: required argument <host:port>' . PHP_EOL);
+    exit(1);
+}
+
+$loop = Factory::create();
+$connector = new Connector($loop);
+
+if (!isset($parts['port'])) {
+    $parts['port'] = $parts['scheme'] === 'https' ? 443 : 80;
+}
+
+$host = $parts['host'];
+if (($parts['scheme'] === 'http' && $parts['port'] !== 80) || ($parts['scheme'] === 'https' && $parts['port'] !== 443)) {
+    $host .= ':' . $parts['port'];
+}
+$target = ($parts['scheme'] === 'https' ? 'tls' : 'tcp') . '://' . $parts['host'] . ':' . $parts['port'];
+$resource = isset($parts['path']) ? $parts['path'] : '/';
+if (isset($parts['query'])) {
+    $resource .= '?' . $parts['query'];
+}
+
+$stdout = new WritableResourceStream(STDOUT, $loop);
+
+$connector->connect($target)->then(function (ConnectionInterface $connection) use ($resource, $host, $stdout) {
+    $connection->pipe($stdout);
+
+    $connection->write("GET $resource HTTP/1.0\r\nHost: $host\r\n\r\n");
+}, 'printf');
+
+$loop->run();