105 lines
2.3 KiB
PHP
Executable file
105 lines
2.3 KiB
PHP
Executable file
<?php
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namespace App\Util\HttpSignatures;
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use Psr\Http\Message\RequestInterface;
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class Signer
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{
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/** @var Key */
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private $key;
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/** @var HmacAlgorithm */
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private $algorithm;
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/** @var HeaderList */
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private $headerList;
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/**
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* @param Key $key
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* @param HmacAlgorithm $algorithm
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* @param HeaderList $headerList
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*/
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public function __construct($key, $algorithm, $headerList)
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{
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$this->key = $key;
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$this->algorithm = $algorithm;
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$this->headerList = $headerList;
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}
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/**
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* @param RequestInterface $message
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*
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* @return RequestInterface
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*/
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public function sign($message)
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{
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$signatureParameters = $this->signatureParameters($message);
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$message = $message->withAddedHeader('Signature', $signatureParameters->string());
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$message = $message->withAddedHeader('Authorization', 'Signature '.$signatureParameters->string());
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return $message;
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}
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/**
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* @param RequestInterface $message
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*
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* @return RequestInterface
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*/
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public function signWithDigest($message)
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{
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$message = $this->addDigest($message);
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return $this->sign($message);
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}
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/**
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* @param RequestInterface $message
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*
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* @return RequestInterface
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*/
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private function addDigest($message)
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{
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if (!array_search('digest', $this->headerList->names)) {
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$this->headerList->names[] = 'digest';
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}
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$message = $message->withoutHeader('Digest')
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->withHeader(
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'Digest',
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'SHA-256='.base64_encode(hash('sha256', $message->getBody(), true))
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);
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return $message;
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}
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/**
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* @param RequestInterface $message
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*
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* @return SignatureParameters
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*/
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private function signatureParameters($message)
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{
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return new SignatureParameters(
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$this->key,
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$this->algorithm,
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$this->headerList,
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$this->signature($message)
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);
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}
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/**
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* @param RequestInterface $message
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*
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* @return Signature
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*/
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private function signature($message)
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{
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return new Signature(
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$message,
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$this->key,
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$this->algorithm,
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$this->headerList
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);
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}
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}
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