G)f9bdZddgZddlZddlZddlZ ddlZddlmZm Z m Z m Z erejdGddejZ Gd dejjZ dd d d ed edede de ej$eff dZde de de dej(fdZy#e$rdZYwxYw)z Utilities. to_threadopen_connectionN) TYPE_CHECKINGAnyCallableTuple StreamWriterc4eZdZdZdej ddfdZy)StreamReaderProtocolzExtends asyncio.streams.StreamReaderProtocol for adding start_tls(). The ``start_tls()`` is based on ``asyncio.streams.StreamWriter`` introduced in Python 3.11. It provides the same functionality for older Python versions. writerreturnNch|j}||_||_|jddu|_y)zQReplace stream writer. Args: writer: Stream Writer. sslcontextN) transport_stream_writer _transportget_extra_info _over_ssl)selfr rs V/var/www/html/flask-app/venv/lib/python3.12/site-packages/mysql/connector/aio/utils.py_replace_writerz$StreamReaderProtocol._replace_writer:s5 $$ $#"11,?tK)__name__ __module__ __qualname____doc__asyncior rrrr r 3s# Lg&:&: Lt Lrr c DeZdZdZddddej dededdfdZy) r zExtends asyncio.streams.StreamWriter for adding start_tls(). The ``start_tls()`` is based on ``asyncio.streams.StreamWriter`` introduced in Python 3.11. It provides the same functionality for older Python versions. N)server_hostnamessl_handshake_timeout ssl_contextr r!r c"K|jjdu}|j}|jd{|jj |j |||||d{}||_|j |y7P7w)zUpgrade an existing stream-based connection to TLS. Args: ssl_context: Configured SSL context. server_hostname: Server host name. ssl_handshake_timeout: SSL handshake timeout. N) server_sider r!) _protocol_client_connected_cbdrain_loop start_tlsrr)rr"r r!r$protocol new_transports rr)zStreamWriter.start_tlsMsnn99E >>jjl"jj22 OO  #+"73       &  s!8BB 2B-B .B B) rrrrssl SSLContextstrintr)rrrr r Fs> $%) '^^' ' # '  'ri)limithostportr0kwdsr c Ktj}tjj||}t || |j fd||fi|d{\}}t | ||}||fS7w)aA wrapper for create_connection() returning a (reader, writer) pair. This function is based on ``asyncio.streams.open_connection`` and adds a custom stream reader. MySQL expects TLS negotiation to happen in the middle of a TCP connection, not at the start. This function in conjunction with ``_StreamReaderProtocol`` and ``_StreamWriter`` allows the TLS negotiation on an existing connection. Args: host: Server host name. port: Server port. limit: The buffer size limit used by the returned ``StreamReader`` instance. By default the limit is set to 64 KiB. Returns: tuple: Returns a pair of reader and writer objects that are instances of ``StreamReader`` and ``StreamWriter`` classes. )r0loop)r5cS)Nr)r*srz!open_connection..srN)rget_running_loopstreams StreamReaderr create_connectionr ) r1r2r0r3r5readerr_r r*s @rrrms.  # # %D __ ) )D ) AF#F6H///0@$UPTUULIq )Xvt VsAA=!A;"A=funcargskwargscKtj}tj}t j |j |g|i|}|jd|d{S7w)aQAsynchronously run function ``func`` in a separate thread. This function is based on ``asyncio.to_thread()`` introduced in Python 3.9, which provides the same functionality for older Python versions. Returns: coroutine: A coroutine that can be awaited to get the eventual result of ``func``. N)rr8 contextvars copy_context functoolspartialrunrun_in_executor)r>r?r@r5ctx func_calls rrrs]  # # %D  " " $C!!#''4A$A&AI%%dI6 66 6sA"A+$A)%A+)NN)r__all__rrBrDr, ImportErrortypingrrrrappendr r9r r.r/r:rFuturerrrrrOs@ ) *76 NN>"L777L&$'7??//$'P#'8= 25GJ 7   -.> 7( 73 7# 7'.. 7E CsB$$B.-B.