<?php
include __DIR__ . '/class-d-asyncsocket.php';
include __DIR__ . '/generator-get-ip.php';
foreach (array('s.w.org', 's.w.dfd', 'dd32.id.au', 'www.wordpress.org') as $hostname) {
echo "Looking up {$hostname}\n";
$gen = gen_get_ip($hostname);
while (true) {
$key = $gen->key();
$current = $gen->current();
switch ($key) {
case 'error':
echo "\nError!, " . $current[0] . ' ' . $current[1] . "\n";
break 2;
case 'notdone':
echo '.';
break;
case 'result':
echo "\nWhoop, The IP for {$hostname} is " . $current[1] . "\n";
break 2;
}
$gen->next();
usleep(500);
}
echo "\n\n";
}
// end foreach
function gen_http_request($url)
{
(yield 'notdone' => [$url, 'Just Loaded']);
// Always yield to start with to help with queueing up requests
$url = trim($url);
if (!$url) {
(yield 'error' => [$url, 'No URL was provided']);
}
$started_at = time();
$parsed_url = parse_url($url);
$parsed_url['path'] = $parsed_url['path'] ?: '/';
$request = "GET {$parsed_url['path']} HTTP/1.0\r\n" . "Host: {$parsed_url['host']}\r\n" . "User-Agent: Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 Edge/12.10136\r\n" . "Connection: close\r\n" . "Accept: */*\r\n" . "pragma: no-cache\r\n" . "dnt: 1\r\n" . "\r\n";
// GET THE IP
$ip = false;
$ip_gen = gen_get_ip($parsed_url['host']);
while (!$ip && $ip_gen->key()) {
$ip_gen->next();
list($domain, $result) = $ip_gen->current();
switch ($ip_gen->key()) {
case 'notdone':
(yield 'notdone' => [$url, 'Waiting on DNS']);
continue;
case 'error':
(yield 'error' => [$url, 'DNS resolution failed']);
continue;
case 'result':
$ip = $result;
break;
}
}
//var_dump( "Found the IP for $url it's $ip" );
$connect_str = 'https' == $parsed_url['scheme'] ? "ssl://{$ip}:443" : "tcp://{$ip}:80";
$timeout = 15;
$context = stream_context_create(array('ssl' => array('verify_peer' => false, 'verify_peer_name' => false, 'allow_self_signed' => true)));
$socket = new D_AsyncSocket($connect_str, $timeout, $context);
if ($socket->error()) {
(yield 'error' => [$url, "Connect failed with " . $socket->error()]);
}
do {
if (time() - $started_at > 15) {
//echo "Giving up $url";
unset($socket);
(yield 'error' => [$url, 'Giving Up']);
}
if ($socket->error()) {
//echo "Error on $url\n";
(yield 'error' => [$url, 'URL Hung up on us']);
}
if (!$socket->ready_for_write()) {
//echo "[$url] waiting for socket connect\n";
(yield 'notdone' => [$url, 'waiting for socket connect']);
continue;
}
$wrote = $socket->write($request, strlen($request));
$request = substr($request, $wrote);
} while (!$socket->error() && $request);
$data = '';
while (!$socket->error() && !$socket->eof()) {
if (time() - $started_at > 15) {
//echo "Giving up $url";
(yield 'error' => [$url, 'Giving Up']);
}
if (!$socket->ready_for_read()) {
//echo "[$url] waiting for data\n";
(yield 'notdone' => [$url, 'waiting for data']);
continue;
}
$data .= $socket->read(8192);
}
unset($socket);
if (!$data) {
//echo "[$url] No data\n";
(yield 'error' => [$url, 'no data']);
}
list($headers, $body) = parse_http_response($data);
$result = ['headers' => $headers, 'body' => $body, 'resolved_ip' => $ip];
(yield 'result' => [$url, $result]);
}