Initial commit: VPN Telegram bot (sanitized defaults)

services/qrcode_svg.py

@@ -0,0 +1,26 @@
+"""Генерация QR (SVG) без Pillow — только пакет qrcode."""
+
+from __future__ import annotations
+
+import io
+
+import qrcode
+import qrcode.image.svg
+
+
+def make_qr_svg(data: str, *, scale: int = 4, border: int = 2) -> bytes:
+    """Возвращает SVG QR как bytes (image/svg+xml)."""
+    text = (data or "").strip()
+    if not text:
+        raise ValueError("empty qr data")
+    factory = qrcode.image.svg.SvgPathImage
+    img = qrcode.make(
+        text,
+        error_correction=qrcode.constants.ERROR_CORRECT_M,
+        box_size=max(2, int(scale)),
+        border=max(1, int(border)),
+        image_factory=factory,
+    )
+    buf = io.BytesIO()
+    img.save(buf)
+    return buf.getvalue()