root
83 lines
2.5 KiB
PHP
83 lines
2.5 KiB
PHP
<?php
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namespace App\Controllers;
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use CodeIgniter\RESTful\ResourceController;
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class ProofreadController extends ResourceController
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{
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public function check()
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{
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// Basic per-IP throttling: 10 requests per minute
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$throttler = service('throttler');
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// Cache/throttler keys cannot contain reserved characters.
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// Raw IPv6 addresses contain ":", so hash the IP first.
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$ip = $this->request->getIPAddress();
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$key = 'proofread-' . hash('sha256', $ip);
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if (! $throttler->check($key, 10, MINUTE)) {
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return $this->respond([
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'ok' => false,
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'error' => 'Too many requests. Try again in a minute.',
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'csrfHash' => csrf_hash(),
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], 429);
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}
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// Accept form-urlencoded payload to play nicely with CSRF protection
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$payload = sanitize_request_value($this->request->getPost(['text']));
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$validation = service('validation');
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$validation->setRules([
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'text' => 'required|min_length[1]|max_length[20000]',
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]);
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if (! $validation->run($payload)) {
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return $this->respond([
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'ok' => false,
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'error' => 'Invalid text payload.',
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'csrfHash' => csrf_hash(),
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], 422);
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}
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$text = (string) $payload['text'];
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$client = \Config\Services::curlrequest([
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'timeout' => 10,
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]);
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try {
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$resp = $client->post('https://api.languagetool.org/v2/check', [
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'headers' => [
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'Content-Type' => 'application/x-www-form-urlencoded',
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],
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'form_params' => [
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'text' => $text,
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'language' => 'en-US',
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],
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]);
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$result = json_decode($resp->getBody(), true);
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if (json_last_error() !== JSON_ERROR_NONE) {
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return $this->respond([
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'ok' => false,
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'error' => 'Invalid response from proofread service.',
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'csrfHash' => csrf_hash(),
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], 502);
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}
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return $this->respond([
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'ok' => true,
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'result' => $result,
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'csrfHash' => csrf_hash(),
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]);
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} catch (\Throwable $e) {
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return $this->respond([
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'ok' => false,
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'error' => 'Proofread service unavailable.',
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'csrfHash' => csrf_hash(),
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], 502);
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}
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}
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} |