LunixREST\Request\HeaderParser\DefaultHeaderParser

Complexity

Total Complexity

13

Size/Duplication

Total Lines	56
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	1

Test Coverage

Coverage

100%

Importance

Changes

0

5 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	3	1
A	parse()	0	7	1
B	findAcceptableMIMETypes()	0	17	5
A	findAPIKey()	0	8	3
A	getContentType()	0	8	3

<?php
namespace LunixREST\Request\HeaderParser;

class DefaultHeaderParser implements HeaderParser {

    private $apiKeyHeaderKey;

    /**
     * DefaultHeaderParser constructor.
     * @param string $apiKeyHeaderKey
     */
    public function __construct($apiKeyHeaderKey = 'x-api-key') {
        $this->apiKeyHeaderKey = $apiKeyHeaderKey;
    }

    public function parse(array $headers): ParsedHeaders {
        $contentType = $this->getContentType($headers);
        $acceptableMIMETypes = $this->findAcceptableMIMETypes($headers);
        $apiKey = $this->findAPIKey($headers);

        return new ParsedHeaders($contentType, $acceptableMIMETypes, $apiKey);
    }

    protected function findAcceptableMIMETypes(array $headers): array{
        //TODO: follow RFC2616 order
        $acceptedMIMETypes = [];
        foreach($headers as $key => $value) {
            if(strtolower($key) == 'http-accept'){
                $values = explode(',', $value);
                foreach($values as $acceptedType) {
                    $typeParts = explode(';', $acceptedType);
                    if(count($typeParts) > 0 ){
                        $acceptedMIMETypes[] = trim($typeParts[0]);
                    }
                }
                break;
            }
        }
        return $acceptedMIMETypes;
    }

    protected function findAPIKey(array $headers){
        foreach($headers as $key => $value) {
            if(strtolower($key) == strtolower($this->apiKeyHeaderKey)){
                return $value;
            }
        }
        return null;
    }

    protected function getContentType(array $headers){
        foreach($headers as $key => $value) {
            if(strtolower($key) == 'content-type'){
                return $value;
            }
        }
        return null;
    }
}