Method handle

aiohttp/web_urldispatcher.py:567–613

(self, request)

    @asyncio.coroutine
    def handle(self, request):
        filename = request.match_info['filename']
        try:
            filepath = self._directory.joinpath(filename).resolve()
            filepath.relative_to(self._directory)
        except (ValueError, FileNotFoundError) as error:
            # relatively safe
            raise HTTPNotFound() from error
        except Exception as error:
            # perm error or other kind!
            request.logger.exception(error)
            raise HTTPNotFound() from error

        # Make sure that filepath is a file
        if not filepath.is_file():
            raise HTTPNotFound()

        st = filepath.stat()

        modsince = request.if_modified_since
        if modsince is not None and st.st_mtime <= modsince.timestamp():
            raise HTTPNotModified()

        ct, encoding = mimetypes.guess_type(str(filepath))
        if not ct:
            ct = 'application/octet-stream'

        resp = self._response_factory()
        resp.content_type = ct
        if encoding:
            resp.headers[hdrs.CONTENT_ENCODING] = encoding
        resp.last_modified = st.st_mtime

        file_size = st.st_size

        resp.content_length = file_size
        resp.set_tcp_cork(True)
        try:
            yield from resp.prepare(request)

            with filepath.open('rb') as f:
                yield from self._sendfile(request, resp, f, file_size)

        finally:
            resp.set_tcp_nodelay(True)

        return resp

    def __repr__(self):
        name = "'" + self.name + "' " if self.name is not None else ""