Maztech\Url\InstagramUrlManipulator

Complexity

Total Complexity

20

Size/Duplication

Total Lines	135
Duplicated Lines	0 %

Importance

Changes

0

6 Methods

Rating	Name	Duplication	Size	Complexity
A	getParamsAsArray()	0	10	2
A	appendParamsToUrl()	0	21	3
A	mergeUrlParams()	0	9	2
B	removeParamsFromUrl()	0	26	9
A	baseGraphUrlEndpoint()	0	3	1
A	forceSlashPrefix()	0	7	3

<?php

namespace Maztech\Url;

/**
 * Class InstagramUrlManipulator
 *
 * @package Instagram
 */
class InstagramUrlManipulator
{
    /**
     * Remove params from a URL.
     *
     * @param string $url            The URL to filter.
     * @param array  $paramsToFilter The params to filter from the URL.
     *
     * @return string The URL with the params removed.
     */
    public static function removeParamsFromUrl($url, array $paramsToFilter)
    {
        $parts = parse_url($url);

        $query = '';
        if (isset($parts['query'])) {
            $params = [];
            parse_str($parts['query'], $params);

            // Remove query params
            foreach ($paramsToFilter as $paramName) {
                unset($params[$paramName]);
            }

            if (count($params) > 0) {
                $query = '?' . http_build_query($params, '', '&');
            }
        }

        $scheme = isset($parts['scheme']) ? $parts['scheme'] . '://' : '';
        $host = isset($parts['host']) ? $parts['host'] : '';
        $port = isset($parts['port']) ? ':' . $parts['port'] : '';
        $path = isset($parts['path']) ? $parts['path'] : '';
        $fragment = isset($parts['fragment']) ? '#' . $parts['fragment'] : '';

        return $scheme . $host . $port . $path . $query . $fragment;
    }

    /**
     * Gracefully appends params to the URL.
     *
     * @param string $url       The URL that will receive the params.
     * @param array  $newParams The params to append to the URL.
     *
     * @return string
     */
    public static function appendParamsToUrl($url, array $newParams = [])
    {
        if (empty($newParams)) {
            return $url;
        }

        if (strpos($url, '?') === false) {
            return $url . '?' . http_build_query($newParams, '', '&');
        }

        list($path, $query) = explode('?', $url, 2);
        $existingParams = [];
        parse_str($query, $existingParams);

        // Favor params from the original URL over $newParams
        $newParams = array_merge($newParams, $existingParams);

        // Sort for a predicable order
        ksort($newParams);

        return $path . '?' . http_build_query($newParams, '', '&');
    }

    /**
     * Returns the params from a URL in the form of an array.
     *
     * @param string $url The URL to parse the params from.
     *
     * @return array
     */
    public static function getParamsAsArray($url)
    {
        $query = parse_url($url, PHP_URL_QUERY);
        if (!$query) {
            return [];
        }
        $params = [];
        parse_str($query, $params);

        return $params;
    }

    /**
     * Adds the params of the first URL to the second URL.
     *
     * Any params that already exist in the second URL will go untouched.
     *
     * @param string $urlToStealFrom The URL harvest the params from.
     * @param string $urlToAddTo     The URL that will receive the new params.
     *
     * @return string The $urlToAddTo with any new params from $urlToStealFrom.
     */
    public static function mergeUrlParams($urlToStealFrom, $urlToAddTo)
    {
        $newParams = static::getParamsAsArray($urlToStealFrom);
        // Nothing new to add, return as-is
        if (!$newParams) {

$newParams is an empty array, thus ! $newParams is always true.

The expression $newParams of type array is implicitly converted to a boolean; are you sure this is intended? If so, consider using empty($expr) instead to make it clear that you intend to check for an array without elements.

            return $urlToAddTo;
        }

        return static::appendParamsToUrl($urlToAddTo, $newParams);
    }

    /**
     * Check for a "/" prefix and prepend it if not exists.
     *
     * @param string|null $string
     *
     * @return string|null
     */
    public static function forceSlashPrefix($string)
    {
        if (!$string) {
            return $string;
        }

        return strpos($string, '/') === 0 ? $string : '/' . $string;
    }

    /**
     * Trims off the hostname and Graph version from a URL.
     *
     * @param string $urlToTrim The URL the needs the surgery.
     *
     * @return string The $urlToTrim with the hostname and Graph version removed.
     */
    public static function baseGraphUrlEndpoint($urlToTrim)
    {
        return '/' . preg_replace('/^https:\/\/.+\.Instagram\.com(\/v.+?)?\//', '', $urlToTrim);
    }
}