[Linux] Add Qr-Code to sync irk and enc key (#142)

2026-02-11 12:12:26 +00:00 · 2025-06-05 09:03:29 +02:00
parent dcb25e2e52
commit 43d703423a
8 changed files with 1514 additions and 0 deletions
--- a/linux/QRCodeImageProvider.hpp
+++ b/linux/QRCodeImageProvider.hpp
@@ -0,0 +1,46 @@
+#include <QQuickImageProvider>
+#include <QPainter>
+#include "thirdparty/QR-Code-generator/qrcodegen.hpp"
+
+class QRCodeImageProvider : public QQuickImageProvider
+{
+public:
+    QRCodeImageProvider() : QQuickImageProvider(QQuickImageProvider::Image) {}
+
+    QImage requestImage(const QString &id, QSize *size, const QSize &requestedSize) override
+    {
+        // Parse the keys from id (format: "encKey;irk")
+        QStringList keys = id.split(';');
+        if (keys.size() != 2)
+            return QImage();
+
+        // Create URL format: librepods://add-magic-keys?enc_key=...&irk=...
+        QString data = QString("librepods://add-magic-keys?enc_key=%1&irk=%2").arg(keys[0], keys[1]);
+
+        // Generate QR code using the existing qrcodegen library
+        qrcodegen::QrCode qr = qrcodegen::QrCode::encodeText(data.toUtf8().constData(), qrcodegen::QrCode::Ecc::MEDIUM);
+
+        int scale = 8;
+        QImage image(qr.getSize() * scale, qr.getSize() * scale, QImage::Format_RGB32);
+        image.fill(Qt::white);
+
+        QPainter painter(&image);
+        painter.setPen(Qt::NoPen);
+        painter.setBrush(Qt::black);
+
+        for (int y = 0; y < qr.getSize(); y++)
+        {
+            for (int x = 0; x < qr.getSize(); x++)
+            {
+                if (qr.getModule(x, y))
+                {
+                    painter.drawRect(x * scale, y * scale, scale, scale);
+                }
+            }
+        }
+
+        if (size)
+            *size = image.size();
+        return image;
+    }
+};