friendica-addons/twitter/vendor/abraham/twitteroauth/src/Util.php

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<?php
/**
* The MIT License
* Copyright (c) 2007 Andy Smith
*/
namespace Abraham\TwitterOAuth;
class Util
{
/**
* @param $input
*
* @return array|mixed|string
*/
public static function urlencodeRfc3986($input)
{
$output = '';
if (is_array($input)) {
$output = array_map([__NAMESPACE__ . '\Util', 'urlencodeRfc3986'], $input);
} elseif (is_scalar($input)) {
$output = rawurlencode($input);
}
return $output;
}
/**
* @param string $string
*
* @return string
*/
public static function urldecodeRfc3986($string)
{
return urldecode($string);
}
/**
* This function takes a input like a=b&a=c&d=e and returns the parsed
* parameters like this
* array('a' => array('b','c'), 'd' => 'e')
*
* @param string $input
*
* @return array
*/
public static function parseParameters($input)
{
if (!is_string($input)) {
return [];
}
$pairs = explode('&', $input);
$parameters = [];
foreach ($pairs as $pair) {
$split = explode('=', $pair, 2);
$parameter = Util::urldecodeRfc3986($split[0]);
$value = isset($split[1]) ? Util::urldecodeRfc3986($split[1]) : '';
if (isset($parameters[$parameter])) {
// We have already recieved parameter(s) with this name, so add to the list
// of parameters with this name
if (is_scalar($parameters[$parameter])) {
// This is the first duplicate, so transform scalar (string) into an array
// so we can add the duplicates
$parameters[$parameter] = [$parameters[$parameter]];
}
$parameters[$parameter][] = $value;
} else {
$parameters[$parameter] = $value;
}
}
return $parameters;
}
/**
* @param array $params
*
* @return string
*/
public static function buildHttpQuery(array $params)
{
if (empty($params)) {
return '';
}
// Urlencode both keys and values
$keys = Util::urlencodeRfc3986(array_keys($params));
$values = Util::urlencodeRfc3986(array_values($params));
$params = array_combine($keys, $values);
// Parameters are sorted by name, using lexicographical byte value ordering.
// Ref: Spec: 9.1.1 (1)
uksort($params, 'strcmp');
$pairs = [];
foreach ($params as $parameter => $value) {
if (is_array($value)) {
// If two or more parameters share the same name, they are sorted by their value
// Ref: Spec: 9.1.1 (1)
// June 12th, 2010 - changed to sort because of issue 164 by hidetaka
sort($value, SORT_STRING);
foreach ($value as $duplicateValue) {
$pairs[] = $parameter . '=' . $duplicateValue;
}
} else {
$pairs[] = $parameter . '=' . $value;
}
}
// For each parameter, the name is separated from the corresponding value by an '=' character (ASCII code 61)
// Each name-value pair is separated by an '&' character (ASCII code 38)
return implode('&', $pairs);
}
}