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<?php |
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/** |
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* Negotiation |
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* |
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* A module for handling Content Negotiation. |
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* |
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* @package core |
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* @author [email protected] |
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* @copyright Caffeina srl - 2016 - http://caffeina.com |
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*/ |
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class Negotiation { |
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protected $list; |
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public static function parse($query){ |
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$list = new \SplPriorityQueue(); |
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array_map(function($e) use ($list) { |
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preg_match_all('(([^;]+)(?=\s*;\s*(\w+)\s*=\s*([^;]+))*)',$e,$p); |
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$params = array_map('trim',array_merge( |
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[ 'type' => current($p[0]) ], array_combine($p[2], $p[3])) |
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); |
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unset($params['']); |
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$params['q'] = isset($params['q']) ? 1.0*$params['q'] : $params['q'] = 1.0; |
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$list->insert($params, $params['q']); |
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},preg_split('(\s*,\s*)', $query)); |
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return array_values(iterator_to_array($list)); |
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} |
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public static function best($acceptables, $choices) { |
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return (new self($acceptables))->match($choices); |
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} |
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public function __construct($query) { |
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$this->list = self::parse(trim($query)); |
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} |
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public function __toString(){ |
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return empty($this->list[0]) ? '' : $this->list[0]; |
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} |
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public function match($choices){ |
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$_choices = self::parse(trim($choices)); |
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foreach ($this->list as $accept){ |
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foreach ($_choices as $choice){ |
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if (preg_match('('.strtr($accept["type"], |
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[ '.' => '\.', '+' => '\+', '*' => '.+' ] |
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).')', $choice["type"])){ |
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unset($choice['q']); // Hide quality key from output |
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$type = $choice['type']; // Extract type |
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unset($choice['type']); |
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return implode(';', array_merge([$type], array_map(function($k,$v){ |
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return "$k=$v"; |
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}, array_keys($choice), $choice))); |
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} |
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} |
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} |
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return false; |
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} |
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} /* End of class */ |
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caffeina-core /
core
