api.py 文件源码

def qr(filename=None):
    if not filename:
        abort(400)
    if not Upload.query.filter_by(path=filename).first():
        abort(404)

    url = _cfg("protocol") + "://" + _cfg("domain") + "/" + filename
    qr = qrcode.make(url)

    byte_io = BytesIO()
    img = qr.save(byte_io, "PNG")
    byte_io.seek(0)

    return send_file(byte_io, mimetype="image/png")