Method _send_informational

gunicorn/asgi/protocol.py:1226–1252

Send an informational response (1xx) such as 103 Early Hints. Args: status: HTTP status code (100-199) headers: List of (name, value) header tuples request: The parsed request object Note: Informational responses are only sent for HTTP/1.1 or lat

(self, status, headers, request)

        return scope

    def _send_informational(self, status, headers, request):
        """Send an informational response (1xx) such as 103 Early Hints.

        Args:
            status: HTTP status code (100-199)
            headers: List of (name, value) header tuples
            request: The parsed request object

        Note: Informational responses are only sent for HTTP/1.1 or later.
        HTTP/1.0 clients do not support 1xx responses.
        """
        # Don't send informational responses to HTTP/1.0 clients
        if request.version < (1, 1):
            return

        reason = self._get_reason_phrase(status)
        response = f"HTTP/{request.version[0]}.{request.version[1]} {status} {reason}\r\n"

        for name, value in headers:
            if isinstance(name, bytes):
                name = name.decode("latin-1")
            if isinstance(value, bytes):
                value = value.decode("latin-1")
            response += f"{name}: {value}\r\n"

        response += "\r\n"
        self._safe_write(response.encode("latin-1"))

    def _send_response_start(self, status, headers, request):
        """Send HTTP response status and headers.