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optionally query client_id endpoint for more display info #59

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optionally query client_id endpoint for more display info #59

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36 changes: 36 additions & 0 deletions index.php
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Original file line number Diff line number Diff line change
Expand Up @@ -339,6 +339,29 @@ function base64_url_decode($string)

$csrf_code = create_signed_code(APP_KEY, $client_id . $redirect_uri . $state, 2 * 60);

function client_info(string $client_id) : ?array {
if (function_exists('curl_init') !== true) {
return null;
}
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $client_id);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, false);
curl_setopt($curl, CURLOPT_TIMEOUT_MS, round(4 * 1000));
curl_setopt($curl, CURLOPT_CONNECTTIMEOUT_MS, 2000);
curl_setopt($curl, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2);
curl_setopt($curl, CURLOPT_HTTPHEADER, ['Accept: application/json']);
$body = curl_exec($curl);
curl_close($curl);
$info = json_decode($body, true, 3);
if (json_last_error() !== JSON_ERROR_NONE) {
return null;
}
return $info;
}

$client_meta = client_info($client_id);

?><!doctype html>
<html>
<head>
Expand All @@ -347,6 +370,8 @@ function base64_url_decode($string)
h1{text-align:center;margin-top:3%;}
body {text-align:center;}
fieldset, pre {width:400px; margin-left:auto; margin-right:auto;margin-bottom:50px; background-color:#FFC; min-height:1em;}
.client-title {width:400px; margin-left:auto; margin-right:auto; min-height:1em;}
.client-meta {width:400px; margin-left:auto; margin-right:auto;margin-bottom:50px; min-height:1em;}
fieldset {text-align:left;}

.form-login{
Expand All @@ -368,6 +393,17 @@ function base64_url_decode($string)
<form method="POST" action="">
<h1>Authenticate</h1>
<div>You are attempting to login with client <pre><?php echo htmlspecialchars($client_id); ?></pre></div>
<?php if (isset($client_meta)) : ?>
<div class="client-title">
<img src="<?php echo htmlspecialchars($client_meta['client_logo']) ?>" alt="[logo]" />
<span><?php echo htmlspecialchars($client_meta['client_name']) ?></span>
</div>
<div class="client-meta">
<a href="<?php echo htmlspecialchars($client_meta['client_uri']) ?>">Webpage</a>
<a href="<?php echo htmlspecialchars($client_meta['client_tos']) ?>">Terms of Service</a>
<a href="<?php echo htmlspecialchars($client_meta['client_policy']) ?>">Privacy Policy</a>
</div>
<?php endif; ?>
<?php if (strlen($scope) > 0) : ?>
<div>It is requesting the following scopes, uncheck any you do not wish to grant:</div>
<fieldset>
Expand Down