Spatie\Robots\RobotsMeta

Complexity

Total Complexity

13

Size/Duplication

Total Lines	69
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	0

Importance

Changes

0

9 Methods

Rating	Name	Duplication	Size	Complexity
A	readFrom()	0	10	2
A	create()	0	4	1
A	__construct()	0	4	1
A	mayIndex()	0	4	1
A	mayFollow()	0	4	1
A	noindex()	0	4	1
A	nofollow()	0	4	1
A	findRobotsMetaTagProperties()	0	14	3
A	findRobotsMetaTagLine()	0	8	2

<?php

namespace Spatie\Robots;

use InvalidArgumentException;

class RobotsMeta
{
    protected $robotsMetaTagProperties = [];

    public static function readFrom(string $source): self
    {
        $content = @file_get_contents($source);

        if ($content === false) {
            throw new InvalidArgumentException("Could not read from source `{$source}`");
        }

        return new self($content);
    }

    public static function create(string $source): self
    {
        return new self($source);
    }

    public function __construct(string $html)
    {
        $this->robotsMetaTagProperties = $this->findRobotsMetaTagProperties($html);
    }

    public function mayIndex(): bool
    {
        return ! $this->noindex();
    }

    public function mayFollow(): bool
    {
        return ! $this->nofollow();
    }

    public function noindex(): bool
    {
        return $this->robotsMetaTagProperties['noindex'] ?? false;
    }

    public function nofollow(): bool
    {
        return $this->robotsMetaTagProperties['nofollow'] ?? false;
    }

    protected function findRobotsMetaTagProperties(string $html): array
    {
        $metaTagLine = $this->findRobotsMetaTagLine($html);

        return [
            'noindex' => $metaTagLine
                ? strpos(strtolower($metaTagLine), 'noindex') !== false
                : false,

            'nofollow' => $metaTagLine
                ? strpos(strtolower($metaTagLine), 'nofollow') !== false
                : false,
        ];
    }

    protected function findRobotsMetaTagLine(string $html): ?string
    {
        if (preg_match('/\<meta name="robots".*?\>/mis', $html, $matches)) {
            return $matches[0];
        }

        return null;
    }
}