mirror of
https://github.com/byecorps/id.git
synced 2024-09-20 04:30:14 +01:00
148 lines
5.5 KiB
PHP
148 lines
5.5 KiB
PHP
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<?php
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// Disable warnings lol
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error_reporting(E_ALL ^ E_WARNING);
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// Determine the app we are dealing with.
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$flash = "";
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$error = "";
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if (null != $query['appid']) {
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$app_id = $query['appid'];
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} else {
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$error = ["No app ID specified.", 200];
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goto login;
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}
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$app = db_execute("SELECT * FROM apps WHERE id = ? LIMIT 1", [$app_id]);
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$doc_title = "Sign in to " . $app['title'];
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// Lets check that the callback matches the app...
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if (null == $query['callback']) {
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$disable_logging_in = true;
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$error = ["No callback URL.", 400];
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goto login;
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}
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if ($query['callback'] != $app['callback']) {
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$disable_logging_in = true;
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$error = ["Callback URL doesn't match our records.", 400];
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goto login;
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}
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if ($_SERVER['REQUEST_METHOD'] === 'POST') {
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// Here's a few easy steps to figure out if we should give the other party a token or not.
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print_r($_POST);
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// First: match the session ids. If they aren't the same it's probably Not Ok.
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if (session_id() != $_POST['sessionid']) {
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echo "<h1>401 Unauthorised</h1><p>You are not permitted to view this content.</p>";
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exit(401);
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}
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// Now let's determine if we're logged in or not. We can use the session for this, and verify using the
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// `bcid` value (which only appears if youre logged in!!!)
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if ($_SESSION['auth']) {
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if (null == $_POST['bcid'] || $_SESSION['id'] != $_POST['bcid']) {
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// Both of these suggest tampering,
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// let's log the user out and throw an error.
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$_SESSION['auth'] = false;
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$_SESSION['id'] = null;
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$flash = "Sorry, something went wrong. Please sign in again.";
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goto login;
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}
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}
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else { // of course, there's also the case that you WERENT logged in. Let's verify if you're logged in or not.
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$user_db_version = db_execute("SELECT * FROM accounts WHERE email = ?", [$_POST['email']]);
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if (!password_verify($_POST['password'], $user_db_version['password']) || null == $user_db_version) {
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// INCORRECT PASSWORD!!!!
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// or the account doesn't exist. we don't care either way.
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$flash = "Incorrect email or password.";
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} else {
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// if it's correct, we'll still force them to click log in again anyway. I'll also be nice and set the
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// cookies properly.
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$_SESSION['id'] = $user_db_version['id'];
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$_SESSION['auth'] = true;
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$user = $user_db_version;
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goto login;
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}
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}
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// The following gets run assuming we know the client is the one CLICKING the button.
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$tokens = generate_basic_access_token($_POST['bcid']);
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header('Location: '. $_POST['callback'].'?access_token='.$tokens['access'].'&refresh='.$tokens['refresh']
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.'&expiry='.$tokens['expiry']);
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exit();
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}
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login:
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?>
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<!DOCTYPE html>
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<html>
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<head>
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<?php include ("head.php"); ?>
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</head>
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<body>
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<?php include("header.php"); ?>
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<main>
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<div id="loginform">
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<?php if ("" != $error) {goto error_no_app;} ?>
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<h1>Sign into <?= $app['title'] ?></h1>
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<p class="subtitle">Owned by <strong><?= get_display_name($app['owner_id'], put_bcid_in_parenthesis: true) ?></strong></p>
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<p><?= $app['description'] ?></p>
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<?php
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error_no_app:
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if ($error) {
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http_response_code($error[1]);
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echo "
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<div class='error center'>
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<span class='fa-regular fa-2xl center fa-xmark-circle'></span>
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<h2>Something went wrong!</h2>
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<p>Server returned error:<br /><code>$error[0]</code> (HTTP response code $error[1])</p>
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</div>
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";
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goto dont_show_form;
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}
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?>
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<p><strong><?= $app['title'] ?></strong> uses ByeCorps ID for authentication.</p>
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<p>Please double-check the information and avoid signing in with your BCID if you do not trust this app.</p>
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<p>Please confirm that you'd like to sign into <strong><?= $app['title'] ?></strong>.</p>
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<?php
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if (null != $flash) {
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echo "<p class='flash'>$flash</p>";
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} else {
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echo "<br />";
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}
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?>
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<form class="login" method="post" action="">
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<input type="hidden" name="sessionid" value="<?= session_id() ?>" />
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<?php if ($_SESSION['auth'])
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{ $bcid = $user['id']; echo "<input type='hidden' name='bcid' value='$bcid' />";
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echo "<p class='subtitle'>You are signed in as ". get_display_name($_SESSION['id'],
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put_bcid_in_parenthesis: true) . ". <a>Not you?</a>.";
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goto signedin; } ?>
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<p class="subtitle">You will need to sign in first.</p>
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<input type="email" autocomplete="email" name="email" id="email" placeholder="Email" />
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<input type="password" name="password" id="password" placeholder="Password" />
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<?php signedin: ?>
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<button class="primary" type="submit">Sign into <?= $app['title']; ?></button>
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<button class="secondary" type="reset">GET ME OUT OF HERE</button>
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<p class="subtitle center">
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You will be brought to <strong><?= $query['callback'] ?></strong>.
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<br /><?= $app['title'] ?> will be able to see your email and display name.
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</p>
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<input type="hidden" name="callback" value="<?= $query['callback'] ?>" />
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</form>
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<?php dont_show_form: ?>
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</div>
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