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<?php |
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namespace Happyr\LinkedIn\Http; |
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/** |
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* @author Tobias Nyholm <[email protected]> |
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*/ |
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class UrlGenerator implements UrlGeneratorInterface |
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{ |
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/** |
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* @var array knownLinkedInParams |
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* |
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* A list of params that might be in the query string |
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*/ |
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public static $knownLinkedInParams = ['state', 'code', 'access_token', 'user']; |
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/** |
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* @var array domainMap |
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* |
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* Maps aliases to LinkedIn domains. |
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*/ |
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public static $domainMap = [ |
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'api' => 'https://api.linkedin.com/', |
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'www' => 'https://www.linkedin.com/', |
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]; |
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/** |
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* @var bool |
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* |
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* Indicates if we trust HTTP_X_FORWARDED_* headers. |
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*/ |
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protected $trustForwarded = false; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getUrl($name, $path = '', $params = []) |
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{ |
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/* handle the user passing in a full URL as the path */ |
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$urlComponents = parse_url($path); |
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if (isset($urlComponents['path'])) { |
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if (!empty($urlComponents['host'])) { |
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$path = $urlComponents['path']; |
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if (!empty($urlComponents['query'])) { |
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$path .= '?' . http_build_query($urlComponents['query']); |
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} |
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} |
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} |
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$url = self::$domainMap[$name]; |
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if ($path) { |
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if ($path[0] === '/') { |
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$path = substr($path, 1); |
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} |
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$url .= $path; |
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} |
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if (!empty($params)) { |
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// does it exist a query string? |
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$queryString = parse_url($url, PHP_URL_QUERY); |
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if (empty($queryString)) { |
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$url .= '?'; |
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} else { |
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$url .= '&'; |
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} |
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// it needs to be PHP_QUERY_RFC3986. We want to have %20 between scopes |
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$url .= http_build_query($params, null, '&', PHP_QUERY_RFC3986); |
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} |
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return $url; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getCurrentUrl() |
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{ |
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$protocol = $this->getHttpProtocol().'://'; |
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$host = $this->getHttpHost(); |
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$currentUrl = $protocol.$host.$_SERVER['REQUEST_URI']; |
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$parts = parse_url($currentUrl); |
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$query = ''; |
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if (!empty($parts['query'])) { |
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// drop known linkedin params |
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$query = $this->dropLinkedInParams($parts['query']); |
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} |
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// use port if non default |
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$port = |
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isset($parts['port']) && |
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(($protocol === 'http://' && $parts['port'] !== 80) || |
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($protocol === 'https://' && $parts['port'] !== 443)) |
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? ':'.$parts['port'] : ''; |
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// rebuild |
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return $protocol.$parts['host'].$port.$parts['path'].$query; |
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} |
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/** |
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* Drop known LinkedIn params. Ie those in self::$knownLinkeInParams. |
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* |
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* @param string $query |
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* |
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* @return string query without LinkedIn params. This string is prepended with a question mark '?' |
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*/ |
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protected function dropLinkedInParams($query) |
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{ |
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if ($query == '') { |
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return ''; |
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} |
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$params = explode('&', $query); |
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foreach ($params as $i => $param) { |
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/* |
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* A key or key/value pair might me 'foo=bar', 'foo=', or 'foo'. |
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*/ |
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//get the first value of the array you will get when you explode() |
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list($key) = explode('=', $param, 2); |
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if (in_array($key, self::$knownLinkedInParams)) { |
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unset($params[$i]); |
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} |
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} |
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//assert: params is an array. It might be empty |
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if (!empty($params)) { |
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return '?'.implode($params, '&'); |
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} |
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return ''; |
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} |
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/** |
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* Get the host. |
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* |
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* |
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* @return mixed |
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*/ |
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protected function getHttpHost() |
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{ |
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if ($this->trustForwarded && isset($_SERVER['HTTP_X_FORWARDED_HOST'])) { |
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return $_SERVER['HTTP_X_FORWARDED_HOST']; |
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} |
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return $_SERVER['HTTP_HOST']; |
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} |
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/** |
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* Get the protocol. |
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* |
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* |
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* @return string |
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*/ |
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protected function getHttpProtocol() |
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{ |
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if ($this->trustForwarded && isset($_SERVER['HTTP_X_FORWARDED_PROTO'])) { |
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if ($_SERVER['HTTP_X_FORWARDED_PROTO'] === 'https') { |
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return 'https'; |
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} |
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return 'http'; |
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} |
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/*apache + variants specific way of checking for https*/ |
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3 |
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if (isset($_SERVER['HTTPS']) && |
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3 |
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($_SERVER['HTTPS'] === 'on' || $_SERVER['HTTPS'] == 1)) { |
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1 |
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return 'https'; |
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} |
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/*nginx way of checking for https*/ |
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if (isset($_SERVER['SERVER_PORT']) && |
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($_SERVER['SERVER_PORT'] === '443')) { |
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return 'https'; |
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} |
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return 'http'; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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3 |
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public function setTrustForwarded($trustForwarded) |
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{ |
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$this->trustForwarded = $trustForwarded; |
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return $this; |
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} |
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} |
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Happyr /
LinkedIn-API-client
