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<?php |
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namespace vipnytt; |
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use vipnytt\UserAgentParser\Exceptions\FormatException; |
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/** |
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* Class UserAgentParser |
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* |
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* @package vipnytt |
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*/ |
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class UserAgentParser |
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{ |
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private $userAgent; |
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private $groups = []; |
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/** |
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* Constructor |
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* |
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* @param string $userAgent |
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*/ |
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public function __construct($userAgent) |
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{ |
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mb_detect_encoding($userAgent); |
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$this->userAgent = trim($userAgent); |
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$this->checkFormat(); |
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$this->explode(); |
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} |
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/** |
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* Validate the UserAgent format |
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* |
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* @throws FormatException |
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*/ |
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protected function checkFormat() |
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{ |
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if (preg_match('/\s/', $this->userAgent)) { |
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throw new FormatException("Format not supported. Please use `name/version` or just `name`, eg. `MyUserAgent/1.0` and `MyUserAgent`."); |
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} |
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} |
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/** |
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* Parses all possible User-Agent groups to an array |
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* |
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* @return array |
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*/ |
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private function explode() |
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{ |
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$groups = [$this->userAgent]; |
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$groups[] = $this->stripVersion(); |
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while (mb_stripos(end($groups), '-') !== false) { |
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$current = end($groups); |
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$groups[] = mb_substr($current, 0, mb_strripos($current, '-')); |
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} |
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foreach ($groups as $group) { |
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if (!in_array($group, $this->groups)) { |
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$this->groups[] = $group; |
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} |
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} |
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} |
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/** |
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* Strip version number |
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* |
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* @return string |
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*/ |
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public function stripVersion() |
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{ |
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if (mb_stripos($this->userAgent, '/') !== false) { |
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return mb_split('/', $this->userAgent, 2)[0]; |
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} |
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return $this->userAgent; |
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} |
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/** |
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* Find matching User-Agent |
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* Selects the best matching from an array, or false if none matches |
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* |
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* @param array $array |
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* @return string|false |
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*/ |
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public function match($array) |
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{ |
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$array = array_map('mb_strtolower', $array); |
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foreach ($this->groups as $userAgent) { |
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if (in_array(mb_strtolower($userAgent), $array)) { |
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return $userAgent; |
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} |
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} |
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return false; |
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} |
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/** |
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* Export all User-Agents as an array |
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* |
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* @return array |
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*/ |
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public function export() |
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{ |
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return $this->groups; |
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} |
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} |
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VIPnytt /
UserAgentParser
