BadBotBlocker::response() - Code Metrics - Inspection of "Fix: #4628 - wrong date order for en-GB and en-AU" - fisharebest/webtrees - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — 2.1 ( c1023f...c6c623 )

by Greg

created 2022-12-02 12:19 UTC

BadBotBlocker::response() A

↳ Parent: BadBotBlocker

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	1
nc	1
nop	0
dl	0
loc	3
rs	10
c	0
b	0
f	0

<?php

/**
 * webtrees: online genealogy
 * Copyright (C) 2022 webtrees development team
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 */

declare(strict_types=1);

namespace Fisharebest\Webtrees\Http\Middleware;

use Fig\Http\Message\StatusCodeInterface;
use Fisharebest\Webtrees\Registry;
use Fisharebest\Webtrees\Validator;
use GuzzleHttp\Client;
use GuzzleHttp\Exception\GuzzleException;
use Iodev\Whois\Loaders\CurlLoader;
use Iodev\Whois\Modules\Asn\AsnRouteInfo;
use Iodev\Whois\Whois;
use IPLib\Address\AddressInterface;
use IPLib\Factory as IPFactory;
use IPLib\Range\RangeInterface;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Server\RequestHandlerInterface;
use Throwable;

use function array_filter;
use function array_map;
use function assert;
use function gethostbyaddr;
use function gethostbyname;
use function preg_match_all;
use function random_int;
use function response;
use function str_contains;
use function str_ends_with;

/**
 * Middleware to block bad robots before they waste our valuable CPU cycles.
 */
class BadBotBlocker implements MiddlewareInterface
{
    private const REGEX_OCTET = '(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)';
    private const REGEX_IPV4  = '/\\b' . self::REGEX_OCTET . '(?:\\.' . self::REGEX_OCTET . '){3}\\b/';

    // Cache whois requests.  Try to avoid all caches expiring at the same time.
    private const WHOIS_TTL_MIN = 28 * 86400;
    private const WHOIS_TTL_MAX = 35 * 86400;
    private const WHOIS_TIMEOUT = 5;

    // Bad robots - SEO optimisers, advertisers, etc.  This list is shared with robots.txt.
    public const BAD_ROBOTS = [
        'admantx',
        'Adsbot',
        'AhrefsBot',
        'Amazonbot', // Until it understands crawl-delay and noindex / nofollow
        'AspiegelBot',
        'Barkrowler',
        'BLEXBot',
        'DataForSEO',
        'DotBot',
        'Grapeshot',
        'ia_archiver',
        'Linguee',
        'MJ12bot',
        'netEstate NE',
        'panscient',
        'PetalBot',
        'proximic',
        'SemrushBot',
        'SEOkicks',
        'SiteKiosk',
        'Turnitin',
        'XoviBot',
        'ZoominfoBot',
    ];

    /**
     * Some search engines use reverse/forward DNS to verify the IP address.
     *
     * @see https://developer.amazon.com/support/amazonbot
     * @see https://support.google.com/webmasters/answer/80553?hl=en
     * @see https://www.bing.com/webmaster/help/which-crawlers-does-bing-use-8c184ec0
     * @see https://www.bing.com/webmaster/help/how-to-verify-bingbot-3905dc26
     * @see https://yandex.com/support/webmaster/robot-workings/check-yandex-robots.html
     * @see https://www.mojeek.com/bot.html
     * @see https://support.apple.com/en-gb/HT204683
     */
    private const ROBOT_REV_FWD_DNS = [
        'Amazonbot'   => ['.crawl.amazon.com'],
        'Applebot'    => ['.applebot.apple.com'],
        'bingbot'     => ['.search.msn.com'],
        'BingPreview' => ['.search.msn.com'],
        'Google'      => ['.google.com', '.googlebot.com'],
        'MojeekBot'   => ['.mojeek.com'],
        'Mail.RU_Bot' => ['.mail.ru'],
        'msnbot'      => ['.search.msn.com'],
        'Qwantify'    => ['.search.qwant.com'],
        'Sogou'       => ['.crawl.sogou.com'],
        'Yahoo'       => ['.crawl.yahoo.net'],
        'Yandex'      => ['.yandex.ru', '.yandex.net', '.yandex.com'],
    ];

    /**
     * Some search engines only use reverse DNS to verify the IP address.
     *
     * @see https://help.baidu.com/question?prod_id=99&class=0&id=3001
     * @see https://napoveda.seznam.cz/en/full-text-search/seznambot-crawler
     * @see https://www.ionos.de/terms-gtc/faq-crawler
     */
    private const ROBOT_REV_ONLY_DNS = [
        'Baiduspider' => ['.baidu.com', '.baidu.jp'],
        'FreshBot'    => ['.seznam.cz'],
        'IonCrawl'    => ['.1und1.org'],
        'Neevabot'    => ['.neeva.com'],
    ];

    /**
     * Some search engines operate from designated IP addresses.
     *
     * @see https://www.apple.com/go/applebot
     * @see https://help.duckduckgo.com/duckduckgo-help-pages/results/duckduckbot
     */
    private const ROBOT_IPS = [
        'AppleBot'    => [
            '17.0.0.0/8',
        ],
        'Ask Jeeves'  => [
            '65.214.45.143',
            '65.214.45.148',
            '66.235.124.192',
            '66.235.124.7',
            '66.235.124.101',
            '66.235.124.193',
            '66.235.124.73',
            '66.235.124.196',
            '66.235.124.74',
            '63.123.238.8',
            '202.143.148.61',
        ],
        'DuckDuckBot' => [
            '23.21.227.69',
            '50.16.241.113',
            '50.16.241.114',
            '50.16.241.117',
            '50.16.247.234',
            '52.204.97.54',
            '52.5.190.19',
            '54.197.234.188',
            '54.208.100.253',
            '54.208.102.37',
            '107.21.1.8',
        ],
    ];

    /**
     * Some search engines operate from designated IP addresses.
     *
     * @see https://bot.seekport.com/
     */
    private const ROBOT_IP_FILES = [
        'SeekportBot' => 'https://bot.seekport.com/seekportbot_ips.txt',
    ];

    /**
     * Some search engines operate from within a designated autonomous system.
     *
     * @see https://developers.facebook.com/docs/sharing/webmasters/crawler
     * @see https://www.facebook.com/peering/
     */
    private const ROBOT_ASNS = [
        'facebook' => ['AS32934', 'AS63293'],
        'twitter'  => ['AS13414'],
    ];

    /**
     * @param ServerRequestInterface  $request
     * @param RequestHandlerInterface $handler
     *
     * @return ResponseInterface
     */
    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
    {
        $ua      = Validator::serverParams($request)->string('HTTP_USER_AGENT', '');
        $ip      = Validator::attributes($request)->string('client-ip');
        $address = IPFactory::parseAddressString($ip);
        assert($address instanceof AddressInterface);

        foreach (self::BAD_ROBOTS as $robot) {
            if (str_contains($ua, $robot)) {
                return $this->response();
            }
        }

        foreach (self::ROBOT_REV_FWD_DNS as $robot => $valid_domains) {
            if (str_contains($ua, $robot) && !$this->checkRobotDNS($ip, $valid_domains, false)) {
                return $this->response();
            }
        }

        foreach (self::ROBOT_REV_ONLY_DNS as $robot => $valid_domains) {
            if (str_contains($ua, $robot) && !$this->checkRobotDNS($ip, $valid_domains, true)) {
                return $this->response();
            }
        }

        foreach (self::ROBOT_IPS as $robot => $valid_ip_ranges) {
            if (str_contains($ua, $robot)) {
                foreach ($valid_ip_ranges as $ip_range) {
                    $range = IPFactory::parseRangeString($ip_range);

                    if ($range instanceof RangeInterface && $range->contains($address)) {
                        continue 2;
                    }
                }

                return $this->response();
            }
        }

        foreach (self::ROBOT_IP_FILES as $robot => $url) {
            if (str_contains($ua, $robot)) {
                $valid_ip_ranges = $this->fetchIpRangesForUrl($robot, $url);

                foreach ($valid_ip_ranges as $ip_range) {
                    $range = IPFactory::parseRangeString($ip_range);

                    if ($range instanceof RangeInterface && $range->contains($address)) {
                        continue 2;
                    }
                }

                return $this->response();
            }
        }

        foreach (self::ROBOT_ASNS as $robot => $asns) {
            foreach ($asns as $asn) {
                if (str_contains($ua, $robot)) {
                    foreach ($this->fetchIpRangesForAsn($asn) as $range) {
                        if ($range->contains($address)) {
                            continue 2;
                        }
                    }

                    return $this->response();
                }
            }
        }

        // Allow sites to block access from entire networks.
        $block_asn = Validator::attributes($request)->string('block_asn', '');
        preg_match_all('/(AS\d+)/', $block_asn, $matches);

        foreach ($matches[1] as $asn) {
            foreach ($this->fetchIpRangesForAsn($asn) as $range) {
                if ($range->contains($address)) {
                    return $this->response();
                }
            }
        }

        return $handler->handle($request);
    }

    /**
     * Check that an IP address belongs to a robot operator using a forward/reverse DNS lookup.
     *
     * @param string        $ip
     * @param array<string> $valid_domains
     * @param bool          $reverse_only
     *
     * @return bool
     */
    private function checkRobotDNS(string $ip, array $valid_domains, bool $reverse_only): bool
    {
        $host = gethostbyaddr($ip);

        if ($host === false) {
            return false;
        }

        foreach ($valid_domains as $domain) {
            if (str_ends_with($host, $domain)) {
                return $reverse_only || $ip === gethostbyname($host);
            }
        }

        return false;
    }

    /**
     * Perform a whois search for an ASN.
     *
     * @param string $asn - The autonomous system number to query
     *
     * @return array<RangeInterface>
     */
    private function fetchIpRangesForAsn(string $asn): array
    {
        return Registry::cache()->file()->remember('whois-asn-' . $asn, static function () use ($asn): array {
            $mapper = static fn (AsnRouteInfo $route_info): ?RangeInterface => IPFactory::parseRangeString($route_info->route ?: $route_info->route6);

            try {
                $loader = new CurlLoader(self::WHOIS_TIMEOUT);
                $whois  = new Whois($loader);
                $info   = $whois->loadAsnInfo($asn);
                $routes = $info->routes;
                $ranges = array_map($mapper, $routes);

                return array_filter($ranges);
            } catch (Throwable $ex) {
                return [];
            }
        }, random_int(self::WHOIS_TTL_MIN, self::WHOIS_TTL_MAX));
    }

    /**
     * Fetch a list of IP addresses from a remote file.
     *
     * @param string $ua
     * @param string $url
     *
     * @return array<string>
     */
    private function fetchIpRangesForUrl(string $ua, string $url): array
    {
        return Registry::cache()->file()->remember('url-ip-list-' . $ua, static function () use ($url): array {
            try {
                $client   = new Client();
                $response = $client->get($url, ['timeout' => 5]);
                $contents = $response->getBody()->getContents();

                preg_match_all(self::REGEX_IPV4, $contents, $matches);

                return $matches[0];
            } catch (GuzzleException) {
                return [];
            }
        }, random_int(self::WHOIS_TTL_MIN, self::WHOIS_TTL_MAX));
    }

    /**
     * @return ResponseInterface
     */
    private function response(): ResponseInterface
    {
        return response('Not acceptable', StatusCodeInterface::STATUS_NOT_ACCEPTABLE);
    }
}


1			<?php
2
3			/**
4			* webtrees: online genealogy
5			* Copyright (C) 2022 webtrees development team
6			* This program is free software: you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation, either version 3 of the License, or
9			* (at your option) any later version.
10			* This program is distributed in the hope that it will be useful,
11			* but WITHOUT ANY WARRANTY; without even the implied warranty of
12			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13			* GNU General Public License for more details.
14			* You should have received a copy of the GNU General Public License
15			* along with this program. If not, see <https://www.gnu.org/licenses/>.
16			*/
17
18			declare(strict_types=1);
19
20			namespace Fisharebest\Webtrees\Http\Middleware;
21
22			use Fig\Http\Message\StatusCodeInterface;
23			use Fisharebest\Webtrees\Registry;
24			use Fisharebest\Webtrees\Validator;
25			use GuzzleHttp\Client;
26			use GuzzleHttp\Exception\GuzzleException;
27			use Iodev\Whois\Loaders\CurlLoader;
28			use Iodev\Whois\Modules\Asn\AsnRouteInfo;
29			use Iodev\Whois\Whois;
30			use IPLib\Address\AddressInterface;
31			use IPLib\Factory as IPFactory;
32			use IPLib\Range\RangeInterface;
33			use Psr\Http\Message\ResponseInterface;
34			use Psr\Http\Message\ServerRequestInterface;
35			use Psr\Http\Server\MiddlewareInterface;
36			use Psr\Http\Server\RequestHandlerInterface;
37			use Throwable;
38
39			use function array_filter;
40			use function array_map;
41			use function assert;
42			use function gethostbyaddr;
43			use function gethostbyname;
44			use function preg_match_all;
45			use function random_int;
46			use function response;
47			use function str_contains;
48			use function str_ends_with;
49
50			/**
51			* Middleware to block bad robots before they waste our valuable CPU cycles.
52			*/
53			class BadBotBlocker implements MiddlewareInterface
54			{
55			private const REGEX_OCTET = '(?:25[0-5]\|2[0-4][0-9]\|[01]?[0-9][0-9]?)';
56			private const REGEX_IPV4 = '/\\b' . self::REGEX_OCTET . '(?:\\.' . self::REGEX_OCTET . '){3}\\b/';
57
58			// Cache whois requests. Try to avoid all caches expiring at the same time.
59			private const WHOIS_TTL_MIN = 28 * 86400;
60			private const WHOIS_TTL_MAX = 35 * 86400;
61			private const WHOIS_TIMEOUT = 5;
62
63			// Bad robots - SEO optimisers, advertisers, etc. This list is shared with robots.txt.
64			public const BAD_ROBOTS = [
65			'admantx',
66			'Adsbot',
67			'AhrefsBot',
68			'Amazonbot', // Until it understands crawl-delay and noindex / nofollow
69			'AspiegelBot',
70			'Barkrowler',
71			'BLEXBot',
72			'DataForSEO',
73			'DotBot',
74			'Grapeshot',
75			'ia_archiver',
76			'Linguee',
77			'MJ12bot',
78			'netEstate NE',
79			'panscient',
80			'PetalBot',
81			'proximic',
82			'SemrushBot',
83			'SEOkicks',
84			'SiteKiosk',
85			'Turnitin',
86			'XoviBot',
87			'ZoominfoBot',
88			];
89
90			/**
91			* Some search engines use reverse/forward DNS to verify the IP address.
92			*
93			* @see https://developer.amazon.com/support/amazonbot
94			* @see https://support.google.com/webmasters/answer/80553?hl=en
95			* @see https://www.bing.com/webmaster/help/which-crawlers-does-bing-use-8c184ec0
96			* @see https://www.bing.com/webmaster/help/how-to-verify-bingbot-3905dc26
97			* @see https://yandex.com/support/webmaster/robot-workings/check-yandex-robots.html
98			* @see https://www.mojeek.com/bot.html
99			* @see https://support.apple.com/en-gb/HT204683
100			*/
101			private const ROBOT_REV_FWD_DNS = [
102			'Amazonbot' => ['.crawl.amazon.com'],
103			'Applebot' => ['.applebot.apple.com'],
104			'bingbot' => ['.search.msn.com'],
105			'BingPreview' => ['.search.msn.com'],
106			'Google' => ['.google.com', '.googlebot.com'],
107			'MojeekBot' => ['.mojeek.com'],
108			'Mail.RU_Bot' => ['.mail.ru'],
109			'msnbot' => ['.search.msn.com'],
110			'Qwantify' => ['.search.qwant.com'],
111			'Sogou' => ['.crawl.sogou.com'],
112			'Yahoo' => ['.crawl.yahoo.net'],
113			'Yandex' => ['.yandex.ru', '.yandex.net', '.yandex.com'],
114			];
115
116			/**
117			* Some search engines only use reverse DNS to verify the IP address.
118			*
119			* @see https://help.baidu.com/question?prod_id=99&class=0&id=3001
120			* @see https://napoveda.seznam.cz/en/full-text-search/seznambot-crawler
121			* @see https://www.ionos.de/terms-gtc/faq-crawler
122			*/
123			private const ROBOT_REV_ONLY_DNS = [
124			'Baiduspider' => ['.baidu.com', '.baidu.jp'],
125			'FreshBot' => ['.seznam.cz'],
126			'IonCrawl' => ['.1und1.org'],
127			'Neevabot' => ['.neeva.com'],
128			];
129
130			/**
131			* Some search engines operate from designated IP addresses.
132			*
133			* @see https://www.apple.com/go/applebot
134			* @see https://help.duckduckgo.com/duckduckgo-help-pages/results/duckduckbot
135			*/
136			private const ROBOT_IPS = [
137			'AppleBot' => [
138			'17.0.0.0/8',
139			],
140			'Ask Jeeves' => [
141			'65.214.45.143',
142			'65.214.45.148',
143			'66.235.124.192',
144			'66.235.124.7',
145			'66.235.124.101',
146			'66.235.124.193',
147			'66.235.124.73',
148			'66.235.124.196',
149			'66.235.124.74',
150			'63.123.238.8',
151			'202.143.148.61',
152			],
153			'DuckDuckBot' => [
154			'23.21.227.69',
155			'50.16.241.113',
156			'50.16.241.114',
157			'50.16.241.117',
158			'50.16.247.234',
159			'52.204.97.54',
160			'52.5.190.19',
161			'54.197.234.188',
162			'54.208.100.253',
163			'54.208.102.37',
164			'107.21.1.8',
165			],
166			];
167
168			/**
169			* Some search engines operate from designated IP addresses.
170			*
171			* @see https://bot.seekport.com/
172			*/
173			private const ROBOT_IP_FILES = [
174			'SeekportBot' => 'https://bot.seekport.com/seekportbot_ips.txt',
175			];
176
177			/**
178			* Some search engines operate from within a designated autonomous system.
179			*
180			* @see https://developers.facebook.com/docs/sharing/webmasters/crawler
181			* @see https://www.facebook.com/peering/
182			*/
183			private const ROBOT_ASNS = [
184			'facebook' => ['AS32934', 'AS63293'],
185			'twitter' => ['AS13414'],
186			];
187
188			/**
189			* @param ServerRequestInterface $request
190			* @param RequestHandlerInterface $handler
191			*
192			* @return ResponseInterface
193			*/
194			public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
195			{
196			$ua = Validator::serverParams($request)->string('HTTP_USER_AGENT', '');
197			$ip = Validator::attributes($request)->string('client-ip');
198			$address = IPFactory::parseAddressString($ip);
199			assert($address instanceof AddressInterface);
200
201			foreach (self::BAD_ROBOTS as $robot) {
202			if (str_contains($ua, $robot)) {
203			return $this->response();
204			}
205			}
206
207			foreach (self::ROBOT_REV_FWD_DNS as $robot => $valid_domains) {
208			if (str_contains($ua, $robot) && !$this->checkRobotDNS($ip, $valid_domains, false)) {
209			return $this->response();
210			}
211			}
212
213			foreach (self::ROBOT_REV_ONLY_DNS as $robot => $valid_domains) {
214			if (str_contains($ua, $robot) && !$this->checkRobotDNS($ip, $valid_domains, true)) {
215			return $this->response();
216			}
217			}
218
219			foreach (self::ROBOT_IPS as $robot => $valid_ip_ranges) {
220			if (str_contains($ua, $robot)) {
221			foreach ($valid_ip_ranges as $ip_range) {
222			$range = IPFactory::parseRangeString($ip_range);
223
224			if ($range instanceof RangeInterface && $range->contains($address)) {
225			continue 2;
226			}
227			}
228
229			return $this->response();
230			}
231			}
232
233			foreach (self::ROBOT_IP_FILES as $robot => $url) {
234			if (str_contains($ua, $robot)) {
235			$valid_ip_ranges = $this->fetchIpRangesForUrl($robot, $url);
236
237			foreach ($valid_ip_ranges as $ip_range) {
238			$range = IPFactory::parseRangeString($ip_range);
239
240			if ($range instanceof RangeInterface && $range->contains($address)) {
241			continue 2;
242			}
243			}
244
245			return $this->response();
246			}
247			}
248
249			foreach (self::ROBOT_ASNS as $robot => $asns) {
250			foreach ($asns as $asn) {
251			if (str_contains($ua, $robot)) {
252			foreach ($this->fetchIpRangesForAsn($asn) as $range) {
253			if ($range->contains($address)) {
254			continue 2;
255			}
256			}
257
258			return $this->response();
259			}
260			}
261			}
262
263			// Allow sites to block access from entire networks.
264			$block_asn = Validator::attributes($request)->string('block_asn', '');
265			preg_match_all('/(AS\d+)/', $block_asn, $matches);
266
267			foreach ($matches[1] as $asn) {
268			foreach ($this->fetchIpRangesForAsn($asn) as $range) {
269			if ($range->contains($address)) {
270			return $this->response();
271			}
272			}
273			}
274
275			return $handler->handle($request);
276			}
277
278			/**
279			* Check that an IP address belongs to a robot operator using a forward/reverse DNS lookup.
280			*
281			* @param string $ip
282			* @param array<string> $valid_domains
283			* @param bool $reverse_only
284			*
285			* @return bool
286			*/
287			private function checkRobotDNS(string $ip, array $valid_domains, bool $reverse_only): bool
288			{
289			$host = gethostbyaddr($ip);
290
291			if ($host === false) {
292			return false;
293			}
294
295			foreach ($valid_domains as $domain) {
296			if (str_ends_with($host, $domain)) {
297			return $reverse_only \|\| $ip === gethostbyname($host);
298			}
299			}
300
301			return false;
302			}
303
304			/**
305			* Perform a whois search for an ASN.
306			*
307			* @param string $asn - The autonomous system number to query
308			*
309			* @return array<RangeInterface>
310			*/
311			private function fetchIpRangesForAsn(string $asn): array
312			{
313			return Registry::cache()->file()->remember('whois-asn-' . $asn, static function () use ($asn): array {
314			$mapper = static fn (AsnRouteInfo $route_info): ?RangeInterface => IPFactory::parseRangeString($route_info->route ?: $route_info->route6);
315
316			try {
317			$loader = new CurlLoader(self::WHOIS_TIMEOUT);
318			$whois = new Whois($loader);
319			$info = $whois->loadAsnInfo($asn);
320			$routes = $info->routes;
321			$ranges = array_map($mapper, $routes);
322
323			return array_filter($ranges);
324			} catch (Throwable $ex) {
325			return [];
326			}
327			}, random_int(self::WHOIS_TTL_MIN, self::WHOIS_TTL_MAX));
328			}
329
330			/**
331			* Fetch a list of IP addresses from a remote file.
332			*
333			* @param string $ua
334			* @param string $url
335			*
336			* @return array<string>
337			*/
338			private function fetchIpRangesForUrl(string $ua, string $url): array
339			{
340			return Registry::cache()->file()->remember('url-ip-list-' . $ua, static function () use ($url): array {
341			try {
342			$client = new Client();
343			$response = $client->get($url, ['timeout' => 5]);
344			$contents = $response->getBody()->getContents();
345
346			preg_match_all(self::REGEX_IPV4, $contents, $matches);
347
348			return $matches[0];
349			} catch (GuzzleException) {
350			return [];
351			}
352			}, random_int(self::WHOIS_TTL_MIN, self::WHOIS_TTL_MAX));
353			}
354
355			/**
356			* @return ResponseInterface
357			*/
358			private function response(): ResponseInterface
359			{
360			return response('Not acceptable', StatusCodeInterface::STATUS_NOT_ACCEPTABLE);
361			}
362			}
363

fisharebest / webtrees

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