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controles/services/otp_service.py

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import base64
import pyotp
import qrcode
from io import BytesIO
def generate_qr_code(user):
"""Gera imagem PIL do QR code OTP para o usuário."""
qr = qrcode.QRCode(version=1, box_size=10, border=5)
qr.add_data(user.get_otp_uri())
qr.make(fit=True)
return qr.make_image(fill_color="black", back_color="white")
def generate_qr_code_base64(user):
"""Gera QR code OTP codificado em base64 (PNG)."""
img = generate_qr_code(user)
buffer = BytesIO()
img.save(buffer, format="PNG")
return base64.b64encode(buffer.getvalue()).decode("utf-8")