101 lines
2.8 KiB
PHP
101 lines
2.8 KiB
PHP
<?php
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define("CLIENT_LIBRARY_LANGUAGE", "PHP");
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define("CLIENT_LIBRARY_VERSION", "V03");
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define("TOKEN", "_token");
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define("LANGUAGE", "_language");
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define("VERSION", "_version");
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define("PLACEHOLDER_REGEX", "/\{([\w\.]+)\}/");
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class UrlUtils {
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public static function prepareRequest(&$url, &$parameters, $addRegularQueryStringParameters = false) {
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if ($parameters == null) {
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$parameters = array();
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}
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// Remove null parameters
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$keys = array_keys($parameters);
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for ($i = 0;$i<count($keys);$i++) {
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$key = $keys[$i];
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if ($parameters[$key] === null) {
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unset($parameters[$key]);
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} else {
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$parameters[$key] = (string)$parameters[$key];
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}
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}
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if ($addRegularQueryStringParameters) {
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// Get regular query string parameters
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self::addRegularQueryStringParameters($url, $parameters);
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}
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$finalUrl = $url;
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$matches = null;
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$match = preg_match_all(PLACEHOLDER_REGEX, $url, $matches);
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if (!empty($matches) && count($matches) > 1) {
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$matches = $matches[1];
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$count = count($matches);
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foreach ($matches as $key) {
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if (array_key_exists($key, $parameters)) {
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$finalUrl = preg_replace("/(\?.+)\{" . $key . "\}/", '${1}' . urlencode($parameters[$key]), $finalUrl);
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$finalUrl = preg_replace("/\{" . $key . "\}/", rawurlencode($parameters[$key]), $finalUrl);
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} else {
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$finalUrl = preg_replace("/&?[\w]*=?\{" . $key . "\}/", "", $finalUrl);
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}
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}
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}
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$finalUrl = preg_replace("/\?&/", "?", $finalUrl);
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$finalUrl = preg_replace("/\?$/", "", $finalUrl);
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$url = $finalUrl;
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}
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private static function addRegularQueryStringParameters($url, &$parameters) {
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$urlParts = explode("?", $url);
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if (count($urlParts) > 1) {
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$queryString = $urlParts[1];
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$queryStringParameters = explode("&", $queryString);
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foreach ($queryStringParameters as $queryStringParameter) {
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$queryStringParameterParts = explode("=", $queryStringParameter);
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if (count($queryStringParameterParts) > 1) {
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if (!self::isPlaceHolder($queryStringParameterParts[1])) {
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$parameters[$queryStringParameterParts[0]] = $queryStringParameterParts[1];
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}
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}
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}
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}
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}
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private static function isPlaceHolder($value) {
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return preg_match(PLACEHOLDER_REGEX, $value);
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}
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public static function addClientParameters(&$url, &$parameters, $token) {
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if ($parameters == null) {
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$parameters = array();
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}
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if (strpos($url, "?") === false) {
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$url .= "?";
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} else {
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$url .= "&";
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}
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$url .= self::addClientParameter(TOKEN);
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$parameters[TOKEN] = $token;
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$url .= "&" . self::addClientParameter(LANGUAGE);
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$parameters[LANGUAGE] = CLIENT_LIBRARY_LANGUAGE;
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$url .= "&" . self::addClientParameter(VERSION);
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$parameters[VERSION] = CLIENT_LIBRARY_VERSION;
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}
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private static function addClientParameter($parameter) {
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return $parameter . "={" . $parameter . "}";
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}
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}
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?>
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