75 lines
2.4 KiB
PHP
75 lines
2.4 KiB
PHP
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<?php
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namespace Taproot\IndieAuth;
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use Psr\Http\Message\ServerRequestInterface;
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use Psr\Log\LoggerAwareInterface;
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use Psr\Log\LoggerInterface;
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// From https://github.com/indieweb/indieauth-client-php/blob/main/src/IndieAuth/Client.php, thanks aaronpk.
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function generateRandomString($numBytes) {
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if (function_exists('random_bytes')) {
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$bytes = random_bytes($numBytes);
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} elseif (function_exists('openssl_random_pseudo_bytes')){
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$bytes = openssl_random_pseudo_bytes($numBytes);
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} else {
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$bytes = '';
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for($i=0, $bytes=''; $i < $numBytes; $i++) {
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$bytes .= chr(mt_rand(0, 255));
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}
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}
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return bin2hex($bytes);
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}
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function isIndieAuthAuthorizationCodeRedeemingRequest(ServerRequestInterface $request) {
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return strtolower($request->getMethod()) == 'post'
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&& array_key_exists('grant_type', $request->getParsedBody())
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&& $request->getParsedBody()['grant_type'] == 'authorization_code';
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}
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function isIndieAuthAuthorizationRequest(ServerRequestInterface $request, $permittedMethods=['get']) {
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return in_array(strtolower($request->getMethod()), array_map('strtolower', $permittedMethods))
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&& array_key_exists('response_type', $request->getQueryParams())
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&& $request->getQueryParams()['response_type'] == 'code';
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}
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function isAuthorizationApprovalRequest(ServerRequestInterface $request) {
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return strtolower($request->getMethod()) == 'post'
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&& array_key_exists('taproot_indieauth_action', $request->getParsedBody())
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&& $request->getParsedBody()['taproot_indieauth_action'] == 'approve';
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}
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function buildQueryString(array $parameters) {
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$qs = [];
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foreach ($parameters as $k => $v) {
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$qs[] = urlencode($k) . '=' . urlencode($v);
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}
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return join('&', $qs);
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}
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/**
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* Append Query Parameters
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*
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* Converts `$queryParams` into a query string, then checks `$uri` for an
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* existing query string. Then appends the newly generated query string
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* with either ? or & as appropriate.
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*/
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function appendQueryParams(string $uri, array $queryParams) {
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$queryString = buildQueryString($queryParams);
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$separator = parse_url($uri, \PHP_URL_QUERY) ? '&' : '?';
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return "{$uri}{$separator}{$queryString}";
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}
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/**
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* Try setLogger
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*
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* If `$target` implements `LoggerAwareInterface`, set it’s logger
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* to `$logger`. Returns `$target`.
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*/
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function trySetLogger($target, LoggerInterface $logger) {
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if ($target instanceof LoggerAwareInterface) {
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$target->setLogger($logger);
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}
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return $target;
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}
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