hashbro
86 lines
3.0 KiB
PHP
86 lines
3.0 KiB
PHP
<?php
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namespace App\Http\Controllers;
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use App\Models\Channel;
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use App\Models\PageVisit;
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use App\Support\UserAgentParser;
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use Illuminate\Http\Request;
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use Illuminate\Http\Response;
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use Illuminate\Support\Facades\Cache;
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class PageHitController extends Controller
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{
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private const GIF_1X1 = "GIF89a\x01\x00\x01\x00\x80\x00\x00\xff\xff\xff\x00\x00\x00!\xf9\x04\x01\x00\x00\x00\x00,\x00\x00\x00\x00\x01\x00\x01\x00\x00\x02\x02D\x01\x00;";
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public function __invoke(Request $request): Response
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{
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$channelId = trim((string) $request->query('c', $request->input('c', '')));
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$clientUid = trim((string) $request->query('u', $request->input('u', '')));
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$newCode = Channel::normalizeNewChannelId($channelId);
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if ($newCode !== null) {
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$channelId = $newCode;
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} else {
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$channelId = strtolower($channelId);
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if (! preg_match('/^[0-9a-f]{32}$/', $channelId)) {
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return $this->pixel();
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}
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}
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if (! preg_match('/^[0-9a-fA-F-]{8,64}$/', $clientUid) && ! preg_match('/^tmp_[0-9a-f]+$/i', $clientUid)) {
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return $this->pixel();
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}
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$ip = PageVisit::normalizeIp((string) $request->ip());
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$domain = PageVisit::normalizeDomain($request->getHost());
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$uid = PageVisit::visitorUid($domain ?? $request->getHost(), $ip);
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$debounceKey = 'page_hit:'.$channelId.':'.$uid;
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if (! Cache::add($debounceKey, 1, now()->addSeconds(8))) {
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return $this->pixel();
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}
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$ua = substr((string) $request->userAgent(), 0, 512);
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$parsed = UserAgentParser::parse($ua);
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$referer = $this->referer($request);
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PageVisit::query()->create([
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'channel_id' => $channelId,
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'client_uid' => $uid,
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'user_agent' => $ua !== '' ? $ua : null,
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'os' => $parsed['os'],
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'os_version' => $parsed['os_version'] !== '' ? $parsed['os_version'] : null,
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'browser' => $parsed['browser'],
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'browser_version' => $parsed['browser_version'] !== '' ? $parsed['browser_version'] : null,
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'ip' => $ip !== '' ? $ip : null,
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'domain' => $domain,
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'referer' => $referer,
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'created_at' => now(),
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]);
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return $this->pixel();
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}
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private function referer(Request $request): ?string
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{
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$referer = trim((string) $request->query('r', $request->input('r', '')));
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if ($referer === '') {
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$referer = trim((string) $request->headers->get('referer', ''));
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}
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if ($referer === '') {
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return null;
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}
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return substr($referer, 0, 512);
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}
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private function pixel(): Response
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{
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return response(self::GIF_1X1, 200, [
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'Content-Type' => 'image/gif',
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'Content-Length' => (string) strlen(self::GIF_1X1),
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'Cache-Control' => 'no-store, no-cache, must-revalidate, max-age=0',
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'Pragma' => 'no-cache',
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]);
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}
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}
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