You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
252 lines
9.3 KiB
252 lines
9.3 KiB
<?php
|
|
|
|
function buildRedirectURI() {
|
|
return Config::$base_url . 'auth/callback';
|
|
}
|
|
|
|
function build_url($parsed_url) {
|
|
$scheme = isset($parsed_url['scheme']) ? $parsed_url['scheme'] . '://' : '';
|
|
$host = isset($parsed_url['host']) ? $parsed_url['host'] : '';
|
|
$port = isset($parsed_url['port']) ? ':' . $parsed_url['port'] : '';
|
|
$user = isset($parsed_url['user']) ? $parsed_url['user'] : '';
|
|
$pass = isset($parsed_url['pass']) ? ':' . $parsed_url['pass'] : '';
|
|
$pass = ($user || $pass) ? "$pass@" : '';
|
|
$path = isset($parsed_url['path']) ? $parsed_url['path'] : '';
|
|
$query = isset($parsed_url['query']) ? '?' . $parsed_url['query'] : '';
|
|
$fragment = isset($parsed_url['fragment']) ? '#' . $parsed_url['fragment'] : '';
|
|
return "$scheme$user$pass$host$port$path$query$fragment";
|
|
}
|
|
|
|
$app->get('/', function($format='html') use($app) {
|
|
$res = $app->response();
|
|
|
|
|
|
ob_start();
|
|
render('index', array(
|
|
'title' => 'Quill',
|
|
'meta' => '',
|
|
'authorizing' => false
|
|
));
|
|
$html = ob_get_clean();
|
|
$res->body($html);
|
|
});
|
|
|
|
$app->get('/auth/start', function() use($app) {
|
|
$req = $app->request();
|
|
|
|
$params = $req->params();
|
|
|
|
// the "me" parameter is user input, and may be in a couple of different forms:
|
|
// aaronparecki.com http://aaronparecki.com http://aaronparecki.com/
|
|
if(!array_key_exists('me', $params) || !($me = IndieAuth\Client::normalizeMeURL($params['me']))) {
|
|
$html = render('auth_error', array(
|
|
'title' => 'Sign In',
|
|
'error' => 'Invalid "me" Parameter',
|
|
'errorDescription' => 'The URL you entered, "<strong>' . $params['me'] . '</strong>" is not valid.'
|
|
));
|
|
$app->response()->body($html);
|
|
return;
|
|
}
|
|
|
|
if(k($params, 'redirect')) {
|
|
$_SESSION['redirect_after_login'] = $params['redirect'];
|
|
}
|
|
|
|
$authorizationEndpoint = IndieAuth\Client::discoverAuthorizationEndpoint($me);
|
|
$tokenEndpoint = IndieAuth\Client::discoverTokenEndpoint($me);
|
|
$micropubEndpoint = IndieAuth\Client::discoverMicropubEndpoint($me);
|
|
|
|
if($tokenEndpoint && $micropubEndpoint && $authorizationEndpoint) {
|
|
// Generate a "state" parameter for the request
|
|
$state = IndieAuth\Client::generateStateParameter();
|
|
$_SESSION['auth_state'] = $state;
|
|
|
|
$scope = 'post';
|
|
$authorizationURL = IndieAuth\Client::buildAuthorizationURL($authorizationEndpoint, $me, buildRedirectURI(), Config::$base_url, $state, $scope);
|
|
} else {
|
|
$authorizationURL = false;
|
|
}
|
|
|
|
// If the user has already signed in before and has a micropub access token,
|
|
// and the endpoints are all the same, skip the debugging screens and redirect
|
|
// immediately to the auth endpoint.
|
|
// This will still generate a new access token when they finish logging in.
|
|
$user = ORM::for_table('users')->where('url', $me)->find_one();
|
|
if($user && $user->micropub_access_token
|
|
&& $user->micropub_endpoint == $micropubEndpoint
|
|
&& $user->token_endpoint == $tokenEndpoint
|
|
&& $user->authorization_endpoint == $authorizationEndpoint
|
|
&& !array_key_exists('restart', $params)) {
|
|
|
|
// TODO: fix this by caching the endpoints maybe in the session instead of writing them to the DB here.
|
|
// Then remove the line below that blanks out the access token
|
|
$user->micropub_endpoint = $micropubEndpoint;
|
|
$user->authorization_endpoint = $authorizationEndpoint;
|
|
$user->token_endpoint = $tokenEndpoint;
|
|
$user->save();
|
|
|
|
$app->redirect($authorizationURL, 301);
|
|
|
|
} else {
|
|
|
|
if(!$user)
|
|
$user = ORM::for_table('users')->create();
|
|
$user->url = $me;
|
|
$user->date_created = date('Y-m-d H:i:s');
|
|
$user->micropub_endpoint = $micropubEndpoint;
|
|
$user->authorization_endpoint = $authorizationEndpoint;
|
|
$user->token_endpoint = $tokenEndpoint;
|
|
$user->micropub_access_token = ''; // blank out the access token if they attempt to sign in again
|
|
$user->save();
|
|
|
|
$html = render('auth_start', array(
|
|
'title' => 'Sign In',
|
|
'me' => $me,
|
|
'authorizing' => $me,
|
|
'meParts' => parse_url($me),
|
|
'tokenEndpoint' => $tokenEndpoint,
|
|
'micropubEndpoint' => $micropubEndpoint,
|
|
'authorizationEndpoint' => $authorizationEndpoint,
|
|
'authorizationURL' => $authorizationURL
|
|
));
|
|
$app->response()->body($html);
|
|
}
|
|
});
|
|
|
|
$app->get('/auth/callback', function() use($app) {
|
|
$req = $app->request();
|
|
$params = $req->params();
|
|
|
|
// Double check there is a "me" parameter
|
|
// Should only fail for really hacked up requests
|
|
if(!array_key_exists('me', $params) || !($me = IndieAuth\Client::normalizeMeURL($params['me']))) {
|
|
if(array_key_exists('me', $params))
|
|
$error = 'The ID you entered, <strong>' . $params['me'] . '</strong> is not valid.';
|
|
else
|
|
$error = 'There was no "me" parameter in the callback.';
|
|
$html = render('auth_error', array(
|
|
'title' => 'Auth Callback',
|
|
'error' => 'Invalid "me" Parameter',
|
|
'errorDescription' => $error
|
|
));
|
|
$app->response()->body($html);
|
|
return;
|
|
}
|
|
|
|
// If there is no state in the session, start the login again
|
|
if(!array_key_exists('auth_state', $_SESSION)) {
|
|
$app->redirect('/auth/start?me='.urlencode($params['me']));
|
|
return;
|
|
}
|
|
|
|
if(!array_key_exists('code', $params) || trim($params['code']) == '') {
|
|
$html = render('auth_error', array(
|
|
'title' => 'Auth Callback',
|
|
'error' => 'Missing authorization code',
|
|
'errorDescription' => 'No authorization code was provided in the request.'
|
|
));
|
|
$app->response()->body($html);
|
|
return;
|
|
}
|
|
|
|
// Verify the state came back and matches what we set in the session
|
|
// Should only fail for malicious attempts, ok to show a not as nice error message
|
|
if(!array_key_exists('state', $params)) {
|
|
$html = render('auth_error', array(
|
|
'title' => 'Auth Callback',
|
|
'error' => 'Missing state parameter',
|
|
'errorDescription' => 'No state parameter was provided in the request. This shouldn\'t happen. It is possible this is a malicious authorization attempt.'
|
|
));
|
|
$app->response()->body($html);
|
|
return;
|
|
}
|
|
|
|
if($params['state'] != $_SESSION['auth_state']) {
|
|
$html = render('auth_error', array(
|
|
'title' => 'Auth Callback',
|
|
'error' => 'Invalid state',
|
|
'errorDescription' => 'The state parameter provided did not match the state provided at the start of authorization. This is most likely caused by a malicious authorization attempt.'
|
|
));
|
|
$app->response()->body($html);
|
|
return;
|
|
}
|
|
|
|
// Now the basic sanity checks have passed. Time to start providing more helpful messages when there is an error.
|
|
// An authorization code is in the query string, and we want to exchange that for an access token at the token endpoint.
|
|
|
|
// Discover the endpoints
|
|
$micropubEndpoint = IndieAuth\Client::discoverMicropubEndpoint($me);
|
|
$tokenEndpoint = IndieAuth\Client::discoverTokenEndpoint($me);
|
|
|
|
if($tokenEndpoint) {
|
|
$token = IndieAuth\Client::getAccessToken($tokenEndpoint, $params['code'], $params['me'], buildRedirectURI(), Config::$base_url, k($params,'state'), true);
|
|
|
|
} else {
|
|
$token = array('auth'=>false, 'response'=>false);
|
|
}
|
|
|
|
$redirectToDashboardImmediately = false;
|
|
|
|
// If a valid access token was returned, store the token info in the session and they are signed in
|
|
if(k($token['auth'], array('me','access_token','scope'))) {
|
|
$_SESSION['auth'] = $token['auth'];
|
|
$_SESSION['me'] = $params['me'];
|
|
|
|
$user = ORM::for_table('users')->where('url', $me)->find_one();
|
|
if($user) {
|
|
// Already logged in, update the last login date
|
|
$user->last_login = date('Y-m-d H:i:s');
|
|
// If they have logged in before and we already have an access token, then redirect to the dashboard now
|
|
if($user->micropub_access_token)
|
|
$redirectToDashboardImmediately = true;
|
|
} else {
|
|
// New user! Store the user in the database
|
|
$user = ORM::for_table('users')->create();
|
|
$user->url = $me;
|
|
$user->date_created = date('Y-m-d H:i:s');
|
|
}
|
|
$user->micropub_endpoint = $micropubEndpoint;
|
|
$user->micropub_access_token = $token['auth']['access_token'];
|
|
$user->micropub_scope = $token['auth']['scope'];
|
|
$user->micropub_response = $token['response'];
|
|
$user->save();
|
|
$_SESSION['user_id'] = $user->id();
|
|
|
|
// Make a request to the micropub endpoint to discover the syndication targets if any.
|
|
// Errors are silently ignored here. The user will be able to retry from the new post interface and get feedback.
|
|
get_syndication_targets($user);
|
|
}
|
|
|
|
unset($_SESSION['auth_state']);
|
|
|
|
if($redirectToDashboardImmediately) {
|
|
if(k($_SESSION, 'redirect_after_login')) {
|
|
$dest = $_SESSION['redirect_after_login'];
|
|
unset($_SESSION['redirect_after_login']);
|
|
$app->redirect($dest, 301);
|
|
} else {
|
|
$app->redirect('/new', 301);
|
|
}
|
|
} else {
|
|
$html = render('auth_callback', array(
|
|
'title' => 'Sign In',
|
|
'me' => $me,
|
|
'authorizing' => $me,
|
|
'meParts' => parse_url($me),
|
|
'tokenEndpoint' => $tokenEndpoint,
|
|
'auth' => $token['auth'],
|
|
'response' => $token['response'],
|
|
'curl_error' => (array_key_exists('error', $token) ? $token['error'] : false),
|
|
'destination' => (k($_SESSION, 'redirect_after_login') ?: '/new')
|
|
));
|
|
$app->response()->body($html);
|
|
}
|
|
});
|
|
|
|
$app->get('/signout', function() use($app) {
|
|
unset($_SESSION['auth']);
|
|
unset($_SESSION['me']);
|
|
unset($_SESSION['auth_state']);
|
|
unset($_SESSION['user_id']);
|
|
$app->redirect('/', 301);
|
|
});
|