base.py 文件源码

def export_html(self, include_recibo_sacado=True, static_url=None):
        ''' Gera e retorna o boleto em HTML '''
        env = Environment(loader=PackageLoader('python_boleto', 'templates'))
        env.filters['index_or_blank'] = filters.index_or_blank
        env.filters['format_currency_or_blank'] = filters.format_currency_or_blank
        env.filters['format_date_or_blank'] = filters.format_date_or_blank
        env.filters['format_agencia_conta'] = filters.format_agencia_conta
        template = env.get_template(self._template)

        context_data = self.get_context_data() or {}

        # Monta a URL do logo do banco
        logo_url = self._logo
        if static_url:
            logo_url = urljoin(static_url, self._logo)
        context_data['logo_url'] = logo_url

        # gera o barse64 do logo, se possível
        try:
            logo_img_file = os.path.join(STATIC_DIR, self._logo)
            if os.path.exists(logo_img_file):
                img = open(logo_img_file, "rb")
                context_data['logo_base64'] = base64.b64encode(img.read()).decode('utf-8')
        except:
            logger.exception("Erro ao converter logo em Base64")

        return template.render(boleto=self,
                               include_recibo_sacado=include_recibo_sacado,
                               **context_data)