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<?php |
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namespace kalanis\kw_auth\Methods; |
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use ArrayAccess; |
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use kalanis\kw_accounts\Interfaces\IAuthCert; |
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use kalanis\kw_address_handler\Handler; |
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/** |
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* Class HttpCerts |
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* @package kalanis\kw_auth\AuthMethods |
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* Authenticate via http certificates |
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* - public on server, private on client whom manage the site |
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*/ |
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class HttpCerts extends AMethods |
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{ |
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const INPUT_NAME = 'PHP_AUTH_USER'; |
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const INPUT_PASS = 'PHP_AUTH_DIGEST'; |
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const INPUT_SALT = 'salt'; |
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/** @var IAuthCert */ |
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protected $authenticator; |
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/** @var Handler */ |
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protected $uriHandler = null; |
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/** @var ArrayAccess<string, string|int> */ |
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protected $server = null; |
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/** |
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* @param IAuthCert $authenticator |
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* @param AMethods|null $nextOne |
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* @param Handler $uriHandler |
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* @param ArrayAccess<string, string|int> $server |
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*/ |
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public function __construct(IAuthCert $authenticator, ?AMethods $nextOne, Handler $uriHandler, ArrayAccess $server) |
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{ |
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parent::__construct($authenticator, $nextOne); |
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$this->uriHandler = $uriHandler; |
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$this->server = $server; |
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} |
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public function process(\ArrayAccess $credentials): void |
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{ |
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$name = $this->server->offsetExists(static::INPUT_NAME) ? strval($this->server->offsetGet(static::INPUT_NAME)) : '' ; |
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$digest = $this->server->offsetExists(static::INPUT_PASS) ? strval($this->server->offsetGet(static::INPUT_PASS)) : '' ; |
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$wantedUser = $this->authenticator->getDataOnly(strval($name)); |
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$wantedCert = $this->authenticator->getCertData(strval($name)); |
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if ($wantedUser && $wantedCert && $digest) { |
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// now we have public key and salt from our storage, so it's time to check it |
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// salt in |
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$this->uriHandler->getParams()->offsetSet(static::INPUT_SALT, $wantedCert->getSalt()); |
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$data = strval($this->uriHandler->getAddress()); |
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// verify |
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$result = openssl_verify($data, base64_decode(rawurldecode(strval($digest))), $wantedCert->getPubKey(), OPENSSL_ALGO_SHA256); |
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if (1 === $result) { |
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// OK |
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$this->loggedUser = $wantedUser; |
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} |
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} |
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} |
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/** |
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* @codeCoverageIgnore headers |
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*/ |
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public function remove(): void |
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{ |
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$this->authNotExists(); |
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} |
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/** |
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* @codeCoverageIgnore headers |
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*/ |
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public function authNotExists(): void |
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{ |
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header('HTTP/1.1 401 Unauthorized'); |
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header('WWW-Authenticate: DigestCert'); |
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} |
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} |
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alex-kalanis /
kw_auth
