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<?php |
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namespace Acquia\Hmac; |
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use Acquia\Hmac\Exception\MalformedRequestException; |
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use Psr\Http\Message\RequestInterface; |
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class AuthorizationHeader implements AuthorizationHeaderInterface |
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{ |
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protected $realm = 'Acquia'; |
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protected $id; |
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protected $nonce; |
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protected $version = '2.0'; |
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protected $signature; |
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protected $headers = []; |
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/** |
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* Initializes the authorization header with the required fields. |
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* |
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* @param string $realm |
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* The realm/provider. |
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* @param string $id |
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* The API key's unique identifier. |
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* @param string $nonce |
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* The nonce, a hex-based v1 or v4 UUID. |
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* @param string $version |
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* The version of the HTTP HMAC spec. |
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* @param string[] $headers |
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* A list of custom headers included in the signature. |
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* @param string $signature |
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* The Base64-encoded signature of the request. |
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*/ |
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public function __construct($realm, $id, $nonce, $version, array $headers, $signature) |
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{ |
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$this->realm = $realm; |
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$this->id = $id; |
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$this->nonce = $nonce; |
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$this->version = $version; |
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$this->headers = $headers; |
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$this->signature = $signature; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public static function createFromRequest(RequestInterface $request) |
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{ |
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if (!$request->hasHeader('Authorization')) { |
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throw new MalformedRequestException('Authorization header is required.', null, 0, $request); |
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} |
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$header = $request->getHeaderLine('Authorization'); |
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$id_match = preg_match('/.*id="(.*?)"/', $header, $id_matches); |
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$realm_match = preg_match('/.*realm="(.*?)"/', $header, $realm_matches); |
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$nonce_match = preg_match('/.*nonce="(.*?)"/', $header, $nonce_matches); |
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$version_match = preg_match('/.*version="(.*?)"/', $header, $version_matches); |
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$signature_match = preg_match('/.*signature="(.*?)"/', $header, $signature_matches); |
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$headers_match = preg_match('/.*headers="(.*?)"/', $header, $headers_matches); |
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if (!$id_match || !$realm_match || !$nonce_match || !$version_match || !$signature_match) { |
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throw new MalformedRequestException( |
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'Authorization header requires a realm, id, version, nonce and a signature.', |
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null, |
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0, |
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$request |
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); |
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} |
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$customHeaders = !empty($headers_matches[1]) ? explode('%3B', $headers_matches[1]) : []; |
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return new static( |
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rawurldecode($realm_matches[1]), |
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$id_matches[1], |
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$nonce_matches[1], |
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$version_matches[1], |
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$customHeaders, |
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$signature_matches[1] |
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); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getRealm() |
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{ |
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return $this->realm; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getId() |
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{ |
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return $this->id; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getNonce() |
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{ |
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return $this->nonce; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getVersion() |
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{ |
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return $this->version; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getCustomHeaders() |
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{ |
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return $this->headers; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getSignature() |
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{ |
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return $this->signature; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function __toString() |
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{ |
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return 'acquia-http-hmac realm="' . rawurlencode($this->realm) . '",' |
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. 'id="' . $this->id . '",' |
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. 'nonce="' . $this->nonce . '",' |
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. 'version="' . $this->version . '",' |
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. 'headers="' . implode('%3B', $this->headers) . '",' |
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. 'signature="' . $this->signature . '"'; |
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} |
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} |
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acquia /
http-hmac-php
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