AuthorizationHeaderExtractor::extract() - Code Metrics - Inspection of "Merge pull request #5 from chadicus/develop" - chadicus/hmac-middleware-php - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 854a6f...c7bd33 )

by Chad

created 2017-09-21 00:04 UTC

AuthorizationHeaderExtractor::extract() A

↳ Parent: AuthorizationHeaderExtractor

Complexity

Conditions	2
Paths	2

Size

Total Lines	16
Code Lines	9

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	16
rs	9.4285
c	0
b	0
f	0
cc	2
eloc	9
nc	2
nop	1

<?php

namespace Chadicus\Psr\Http\ServerMiddleware\Hmac;

use Chadicus\Psr\Http\ServerMiddleware\AuthenticationException;
use Chadicus\Psr\Http\ServerMiddleware\Token;
use Chadicus\Psr\Http\ServerMiddleware\TokenExtractorInterface;
use Psr\Http\Message\ServerRequestInterface;

/**
 * Token extractor to obtain a token from an authorization header.
 */
final class AuthorizationHeaderExtractor implements TokenExtractorInterface
{
    /**
     * A custom scheme expected in the Authorization header.
     *
     * @var string
     */
    private $scheme;

    /**
     * Construct a new instance of this extractor
     *
     * @param string $scheme A custom scheme expected in the Authorization header.
     */
    public function __construct(string $scheme = 'hmac')

    {
        $this->scheme = 'hmac';
    }

    /**
     * Extracts the HMAC authentication Token from the given PSR-7 $request.
     *
     * @param ServerRequestInterface $request The request containing the HMAC token data.
     *
     * @return Token
     *
     * @throws AuthenticationException 400 Thrown if any required data is missing.
     */
    public function extract(ServerRequestInterface $request) : Token
    {
        $authorizationHeader = $request->getHeaderLine('Authorization');

        //Authorization: schema PublicKey:Signature:Nonce:Timestamp

        $pattern = "^{$this->scheme}\s(?P<publicKey>[a-zA-z0-9]*):(?P<signature>[a-zA-Z0-9]*):"
                 . '(?P<nonce>[a-zA-Z0-9]*):(?P<timestamp>[0-9]*)$';
        $matches = [];
        $matched = preg_match("/{$pattern}/", $authorizationHeader, $matches);
        if (!$matched) {
            throw new AuthenticationException(400, 'Bad Request');
        }

        return new Token($matches['publicKey'], $matches['signature'], $matches['nonce'], $matches['timestamp']);
    }
}


1			<?php
2
3			namespace Chadicus\Psr\Http\ServerMiddleware\Hmac;
4
5			use Chadicus\Psr\Http\ServerMiddleware\AuthenticationException;
6			use Chadicus\Psr\Http\ServerMiddleware\Token;
7			use Chadicus\Psr\Http\ServerMiddleware\TokenExtractorInterface;
8			use Psr\Http\Message\ServerRequestInterface;
9
10			/**
11			* Token extractor to obtain a token from an authorization header.
12			*/
13			final class AuthorizationHeaderExtractor implements TokenExtractorInterface
14			{
15			/**
16			* A custom scheme expected in the Authorization header.
17			*
18			* @var string
19			*/
20			private $scheme;
21
22			/**
23			* Construct a new instance of this extractor
24			*
25			* @param string $scheme A custom scheme expected in the Authorization header.
26			*/
27			public function __construct(string $scheme = 'hmac')
			0 ignored issues – show Unused Code introduced 2017-09-20 00:30 UTC by Report Bug Copy Issue Report The parameter `$scheme` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history...
28			{
29			$this->scheme = 'hmac';
30			}
31
32			/**
33			* Extracts the HMAC authentication Token from the given PSR-7 $request.
34			*
35			* @param ServerRequestInterface $request The request containing the HMAC token data.
36			*
37			* @return Token
38			*
39			* @throws AuthenticationException 400 Thrown if any required data is missing.
40			*/
41			public function extract(ServerRequestInterface $request) : Token
42			{
43			$authorizationHeader = $request->getHeaderLine('Authorization');
44
45			//Authorization: schema PublicKey:Signature:Nonce:Timestamp
46
47			$pattern = "^{$this->scheme}\s(?P<publicKey>[a-zA-z0-9]):(?P<signature>[a-zA-Z0-9]):"
48			. '(?P<nonce>[a-zA-Z0-9]):(?P<timestamp>[0-9])$';
49			$matches = [];
50			$matched = preg_match("/{$pattern}/", $authorizationHeader, $matches);
51			if (!$matched) {
52			throw new AuthenticationException(400, 'Bad Request');
53			}
54
55			return new Token($matches['publicKey'], $matches['signature'], $matches['nonce'], $matches['timestamp']);
56			}
57			}
58

chadicus / hmac-middleware-php

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AuthorizationHeaderExtractor::extract() A

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