Subreality\Dilmun\Anshar\Http\UriParts\Query

Complexity

Total Complexity

4

Size/Duplication

Total Lines	43
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	0

Test Coverage

Coverage

100%

Importance

Changes	2
Bugs	0	Features	0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	10	3
A	compileValidPattern()	0	10	1

<?php
namespace Subreality\Dilmun\Anshar\Http\UriParts;

/**
 * Class Query
 * @package Subreality\Dilmun\Anshar\Http\UriParts
 */
class Query
{
    private $unreserved_pattern  = '\w\-\.~';
    private $pct_encoded_pattern = '%[A-Fa-f0-9]{2}';
    private $sub_delims_pattern  = '\!\$&\'\(\)\*\+,;\=';
    private $pchar_pattern       = '\:@';

    private $valid_pattern;

    /**
     * Query constructor. Accepts a string representing a URI query. Construction will throw an exception if the
     * query is either not a string or does not conform to the RFC3986 URI query specification.
     *
     * scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )
     *
     * @param $query
     */
    public function __construct($query)
    {
        $this->compileValidPattern();

        if (!is_string($query)) {
            throw new \InvalidArgumentException("Query must be a string");
        } elseif (!preg_match($this->valid_pattern, $query)) {
            throw new \InvalidArgumentException("Query must conform to RFC3986 specification");
        }
    }

    /**
     * Compiles a regexp pattern based on predefined patterns that define allowed characters for a query. Note that the
     * pipe indicates that a query can either contain all defined characters or contain percent encoded characters.
     */
    private function compileValidPattern()
    {
        $this->valid_pattern = '/^([\/\?' .
            $this->unreserved_pattern .
            $this->sub_delims_pattern .
            $this->pchar_pattern .
            ']|' .
            $this->pct_encoded_pattern .
            ')*$/';
    }
}