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<?php |
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namespace kalanis\RemoteRequest\Protocols\Http\Query; |
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/** |
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* Trait TAuthDigest |
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* @package kalanis\RemoteRequest\Protocols\Http\Query |
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* Authorization header trait |
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* @link https://datatracker.ietf.org/doc/html/rfc2069 |
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* @link https://en.wikipedia.org/wiki/Digest_access_authentication |
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*/ |
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trait TAuthDigest |
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{ |
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use TAuth; |
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/** @var string */ |
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protected $username = ''; |
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/** @var string */ |
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protected $password = ''; |
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/** @var string */ |
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protected $realm = ''; |
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/** @var string */ |
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protected $remoteRandomNumber = ''; |
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/** @var string */ |
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protected $localRandomNumber = ''; |
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/** @var string */ |
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protected $returnToServer = ''; |
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/** @var string */ |
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protected $qualityOfProtection = ''; |
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/** @var string */ |
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protected $algorithm = 'md5'; |
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/** @var string */ |
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protected $requestCounter = ''; |
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/** @var int */ |
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protected static $queriesCounter = 1; |
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public function setCredentials(string $username, string $password, string $realm): void |
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{ |
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$this->username = $username; |
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$this->password = $password; |
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$this->realm = $realm; |
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} |
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public function setProperties(string $remoteRandomNumber, string $returnToServer, string $qualityOfProtection, string $algorithm = 'md5'): void |
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{ |
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$this->localRandomNumber = $this->getRandomString(); |
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$this->remoteRandomNumber = $remoteRandomNumber; |
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$this->returnToServer = $returnToServer; |
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$this->qualityOfProtection = $qualityOfProtection; |
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$this->algorithm = $algorithm; |
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$this->requestCounter = sprintf('%08d', static::$queriesCounter); |
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static::$queriesCounter++; |
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} |
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/** |
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* @return string |
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* @codeCoverageIgnore random generator |
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*/ |
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protected function getRandomString(): string |
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{ |
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return substr(md5(strval(rand())), 0, 8); |
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} |
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public function authHeader(): void |
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{ |
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$this->addHeader('Authorization', |
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sprintf('%s username="%s", realm="%s", nonce="%s", uri="%s", qop="%s", nc="%s", cnonce="%s", response="%s", opaque="%s"', |
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$this->authType(), $this->username, $this->realm, $this->remoteRandomNumber, $this->getPath(), $this->qualityOfProtection, |
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$this->requestCounter, $this->localRandomNumber, $this->authKey(), $this->returnToServer)); |
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} |
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protected function authType(): string |
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{ |
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return 'Digest'; |
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} |
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protected function authKey(): string |
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{ |
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$A1 = $this->hash($this->username . ':' . $this->realm . ':' . $this->password); |
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$A2 = $this->hash($this->getMethod() . ':' . $this->getPath()); |
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// return $this->hash($A1 . ':' . $this->remoteRandomNumber . ':' . $A2); // from rfc |
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return $this->hash($A1 . ':' . $this->remoteRandomNumber . ':' . $this->requestCounter . ':' . $this->localRandomNumber . ':' . $this->qualityOfProtection . ':' . $A2); // from wiki |
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} |
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protected function hash(string $what): string |
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{ |
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switch ($this->algorithm) { |
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case 'md5': |
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default: |
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return md5($what); |
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} |
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} |
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abstract public function getMethod(): string; |
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abstract public function getPath(): string; |
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} |
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alex-kalanis /
remote-request
