einundzwanzig/einundzwanzig-app
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Build the Nostr signer URI in the browser, not server-side

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Server-side percent-encoding (rawurlencode/http_build_query) produced a
nostrsigner: URI that Amber rejected as malformed. The launcher view now
assembles it in JS with encodeURIComponent(JSON.stringify(event)) — the
exact encoding Amber accepts (verified working earlier in the session).
The controller only passes k1 and the callback URL.
This commit is contained in:
HolgerHatGarKeineNode
2026-06-11 22:40:57 +02:00
parent 58c7e410b0
commit 7e491326a9
2 changed files with 26 additions and 20 deletions
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app/Http/Controllers/MobileAuthController.php
+6 -14
View File
@@ -154,22 +154,14 @@ final class MobileAuthController extends Controller
$k1 = bin2hex(random_bytes(32));
$event = [
'kind' => 22242,
'created_at' => now()->timestamp,
'content' => '',
'tags' => [['challenge', $k1]],
];
$signerUri = 'nostrsigner:'.rawurlencode(json_encode($event)).'?'.http_build_query([
'compressionType' => 'none',
'returnType' => 'event',
'type' => 'sign_event',
'appName' => 'Einundzwanzig',
// The signer URI is assembled in the browser (see the view) with
// encodeURIComponent(JSON.stringify(event)) — the exact encoding
// Amber accepts. Building it server-side produced subtly different
// percent-encoding that Amber rejected as malformed.
return view('auth.mobile-nostr-launch', [
'k1' => $k1,
'callbackUrl' => url('/auth/mobile/signed/'.$k1.'/'),
]);
return view('auth.mobile-nostr-launch', ['signerUri' => $signerUri]);
}
/**
resources/views/auth/mobile-nostr-launch.blade.php
+20 -6
View File
@@ -10,20 +10,34 @@
.card { text-align: center; padding: 2rem; max-width: 22rem; }
h1 { font-size: 1.25rem; margin: 1rem 0 .5rem; }
p { color: #a1a1aa; line-height: 1.5; }
a.button { display: inline-block; margin-top: 1.5rem; padding: .875rem 1.25rem; border-radius: .75rem;
background: #f7931a; color: #09090b; font-weight: 600; text-decoration: none; }
button.launch { margin-top: 1.5rem; padding: .875rem 1.25rem; border: 0; border-radius: .75rem;
background: #f7931a; color: #09090b; font-weight: 600; font-size: 1rem; cursor: pointer; }
</style>
</head>
<body>
<div class="card">
<h1>{{ __('Anmeldung mit Nostr') }}</h1>
<p>{{ __('Dein Nostr-Signer (z. B. Amber) öffnet sich gleich. Falls nicht, tippe auf den Button.') }}</p>
<a class="button" href="{{ $signerUri }}">{{ __('Signer öffnen') }}</a>
<button class="launch" onclick="launchSigner()">{{ __('Signer öffnen') }}</button>
</div>
<script>
// Launch via window.location so the intent carries category.BROWSABLE
// and Amber routes it into its web-signing flow.
window.location.href = @js($signerUri);
// Build the NIP-55 signer URI in the browser with
// encodeURIComponent(JSON.stringify(event)) — the exact encoding
// Amber accepts. Launch via window.location so the intent carries
// category.BROWSABLE and Amber uses its web-signing flow.
function launchSigner() {
const event = {
kind: 22242,
created_at: Math.floor(Date.now() / 1000),
content: '',
tags: [['challenge', @js($k1)]],
};
window.location.href = 'nostrsigner:' + encodeURIComponent(JSON.stringify(event))
+ '?compressionType=none&returnType=event&type=sign_event&appName=Einundzwanzig'
+ '&callbackUrl=' + encodeURIComponent(@js($callbackUrl));
}
launchSigner();
</script>
</body>
</html>