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connection.cpython-39.pyc
a ��Rht� � @ s d Z ddlmZ ddlZddlZddlZddlZddlZddlZddl Z ddl m Z ddl m Z ddlmZmZmZmZmZmZmZmZmZmZmZmZ ddlm Z dd l m Z dd l m Z m!Z! dd l"m#Z#m$Z$m%Z%m&Z&m'Z'm(Z( dd l)m*Z* dd l+m,Z,m-Z-m.Z.m/Z/m0Z0m1Z1m2Z2m3Z3m4Z4m5Z5m6Z6m7Z7m8Z8 ddl9m:Z:m;Z;m<Z<m=Z=m>Z>m?Z?m@Z@mAZA ddlBmBZB ddlCmDZDmEZEmFZF ddlGmHZH ddlImJZJ ddlKmLZL ddlMmNZNmOZOmPZPmQZQmRZRmSZSmTZTmUZUmVZV ddlWmXZXmYZYmZZZm[Z[m\Z\m]Z] e�r�ddl m^Z^ eH�rddl_m`Z`maZa G dd� de �ZbdS )z.Implementing communication with MySQL servers.� )� annotationsN)�Decimal)�IOBase) � TYPE_CHECKING�Any�BinaryIO�Dict� Generator�List�Mapping�Optional�Sequence�Tuple�Type�Union� )�version)�MySQLConnectionAbstract)�MySQLAuthenticator�get_auth_plugin)� ClientFlag� FieldType� RefreshOption� ServerCmd� ServerFlag� flag_is_set)�MySQLConverter) � CursorBase� MySQLCursor�MySQLCursorBuffered�MySQLCursorBufferedDict� MySQLCursorBufferedNamedTuple�MySQLCursorBufferedRaw�MySQLCursorDict�MySQLCursorNamedTuple�MySQLCursorPrepared�MySQLCursorPreparedDict� 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z'MySQLConnection._add_default_conn_attrsc C s: t | j�� �}|d dkr"t|��d| _| j�|�}|d }| �t|t t t f�rT|nd�| _ | j � | j � |d tj@ s�| jdkr�| js�td��| j�d �r�td d d ��| jtj M _n| js�| jtjO _|d tj@ r�| �tjg� |d tj@ �rd | _| �tjg� |d tj@ �r0| �tjg� || _dS )z'Get the handshake from the MySQL server� � NZserver_version_original�UnknownZ capabilitiesZmysql_clear_passwordzEClear password authentication is not supported over insecure channelsZ verify_certz1SSL is required but the server doesn't support iti� )�errnoT) �bytesrR �recvr1 rS rQ Zparse_handshakeZ_check_server_version� isinstancerv � bytearray�_server_versionZ_character_setZset_mysql_versionr �SSLre Z is_securer, r^ �getrX � _ssl_disabledZ PLUGIN_AUTHZset_client_flags�CLIENT_QUERY_ATTRIBUTESrg ZMULTI_FACTOR_AUTHENTICATION)rn �packet� handshakeZserver_versionrq rq rr � _do_handshake� sB ��� �z MySQLConnection._do_handshakeNr rO z Optional[str]�intz:Optional[Dict[str, Optional[Union[str, bool, List[str]]]]]zOptional[Dict[str, str]]�bool)�username�password�database� client_flags�charset� ssl_options� conn_attrsrN c C s� | j �d�s"| j �d�r>tjdkr>|s>t�� }t�d|| j � | jrT|| jkrT| j}d| _ | j s�|t j @ r�| j j| j| j|||d� d| _ | j j| j| j||| j| j|||| j | j|| j| j| j| jd�}| �|� |t j@ s�|r�| � |� dS ) ae Authenticate with the MySQL server Authentication happens in two parts. We first send a response to the handshake. The MySQL server will then send either an AuthSwitchRequest or an error packet. Raises NotSupportedError when we get the old, insecure password reply back. Raises any error coming from MySQL. Zauthentication_ociZauthentication_kerberos�ntz4MySQL user is empty, OS user: %s will be used for %sF)r� r� T)�sockr� r� � password1� password2� password3r� r� r� � auth_plugin�auth_plugin_classr� �krb_service_principal�oci_config_file�oci_config_profile�webauthn_callback) re � startswithr� �name�getpass�getuserr2 �debug� _password1rd r� r r� rj Z setup_sslrR � server_host� authenticaterS � _password2� _password3�_auth_plugin_classrf �_oci_config_file�_oci_config_profile�_webauthn_callback� _handle_ok�CONNECT_WITH_DB� cmd_init_db) rn r� r� r� r� r� r� r� �ok_pktrq rq rr �_do_auth� s` � ������ zMySQLConnection._do_authr3 c C sF d}| j r"tjdkr"t| jd�}nt| j| j| jd�}|� | j � |S )z�Get connection based on configuration This method will return the appropriated connection object using the connection parameters. Returns subclass of MySQLBaseSocket. N�posix)� unix_socket)�host�portZ force_ipv6) r] r� r� r5 r� r4 r� Z server_portr_ �set_connection_timeoutZ_connection_timeout)rn �connrq rq rr �_get_connectionD s � z MySQLConnection._get_connectionc C s | j dkr(| js(t| j | j�}|�� | _t� | _| �� | _zh| j� � | � � | � | j| j | j | j| j| j| j� | �| j� | jtj@ r�| j�� | j�d� W n ty� | j�� � Y n0 | j�st| jj d��rt | jj j ��r| jj � � \}}}t |� t ||� dS )z�Open the connection to the MySQL server This method sets up and opens the connection to the MySQL server. Raises on errors. Z authentication_kerberos_clientN�cipher)!re rZ r r� Zget_user_from_credentialsr8 rQ r� rR �open_connectionr� r� r[ r\ rX rY r^ r� Zset_converter_classrV r ZCOMPRESSZswitch_to_compressed_moder� rl �close_connectionr� �hasattrr� �callabler� rG rF )rn �clsr� Z tls_version�_rq rq rr �_open_connectionY sB � � � � z MySQLConnection._open_connectionc C s4 | j s dS z| j �� W n ttfy. Y n0 dS )ah Shut down connection to MySQL Server. This method closes the socket. It raises no exceptions. Unlike `disconnect()`, `shutdown()` closes the client connection without attempting to send a QUIT command to the server first. Thus, it will not block if the connection is disrupted for some reason such as network failure. N)rR �shutdown�AttributeErrorr+ �rn rq rq rr r� � s zMySQLConnection.shutdownc C s� | j r$| j �� r$t| j t�� d � | js.dS z | �� W n ttfyP Y n0 zXz| j� � W n6 t y� } z t r�t| j |� � W Y d}~n d}~0 0 W t r�t | j � nt r�t | j � 0 d| _ dS )z Disconnect from the MySQL serverr N)Z_spanZ is_recordingrJ �sys�exc_inforR �cmd_quitr� r+ r� rl r6 rI rS )rn �errrq rq rr rm � s& � zMySQLConnection.closeTzOptional[bytes]zOptional[bytearray])�command�argument� packet_numberr� �expect_response�compressed_packet_numberrN c C sl | � � z"| j�| j�||p |�||� W n. tyX } ztd�|�W Y d}~n d}~0 0 |rh| j�� S dS )a4 Send a command to the MySQL server This method sends a command with an optional argument. If packet is not None, it will be sent and the argument will be ignored. The packet_number is optional and should usually not be used. Some commands might not result in the MySQL server returning a response. If a command does not return anything, you should set expect_response to False. The _send_cmd method will then return None instead of a MySQL packet. Returns a MySQL packet or None. � MySQL Connection not availableN)�handle_unread_resultrR �sendrQ � make_commandr� r/ r� )rn r� r� r� r� r� r� r� rq rq rr � _send_cmd� s � zMySQLConnection._send_cmdFr r� )� data_file�send_empty_packetrN c C s� | � � t|d�std��d}z2|�|d �}|rN| j�|� |�|d �}q.W n. ty~ } ztd�|�W Y d}~n d}~0 0 |r�z| j�d� W n. ty� } ztd�|�W Y d}~n d}~0 0 | j�� S )a4 Send data to the MySQL server This method accepts a file-like object and sends its data as is to the MySQL server. If the send_empty_packet is True, it will send an extra empty package (for example when using LOAD LOCAL DATA INFILE). Returns a MySQL packet. �readz expecting a file-like object� � r� Nrz ) r� r� � ValueErrorr� rR r� r� r/ r� )rn r� r� � chunk_size�bufr� rq rq rr � _send_data� s" zMySQLConnection._send_data)�flagsrN c C s t tj|�| _t tj|�| _dS )a Handle the server flags found in MySQL packets This method handles the server flags send by MySQL OK and EOF packets. It, for example, checks whether there exists more result sets or whether there is an ongoing transaction. N)r r ZMORE_RESULTS_EXISTSra ZSTATUS_IN_TRANSrc )rn r� rq rq rr �_handle_server_status s z%MySQLConnection._handle_server_statusc C s | j S )z'MySQL session has started a transaction)rc r� rq rq rr �in_transaction s z MySQLConnection.in_transactionr� r= )r� rN c C sJ |d dkr*| j �|�}| �|d � |S |d dkr>t|��td��dS )a Handle a MySQL OK packet This method handles a MySQL OK packet. When the packet is found to be an Error packet, an error will be raised. If the packet is neither an OK or an Error packet, InterfaceError will be raised. Returns a dict() r� r � status_flagr� zExpected OK packetN)rQ Zparse_okr� r1 r, )rn r� r� rq rq rr r� s zMySQLConnection._handle_okr; c C sJ |d dkr*| j �|�}| �|d � |S |d dkr>t|��td��dS )a Handle a MySQL EOF packet This method handles a MySQL EOF packet. When the packet is found to be an Error packet, an error will be raised. If the packet is neither and OK or an Error packet, InterfaceError will be raised. Returns a dict() r� � r� r� zExpected EOF packetN)rQ Z parse_eofr� r1 r, )rn r� �eofrq rq rr � _handle_eof$ s zMySQLConnection._handle_eofrv )�filenamerN c C s� t j�|�}t j�|�r td��| js4| js4td��| js�| jr�t j�| j�}d}zt j�||g�}W n@ t y� } z(d}t |� t |�||��|�W Y d}~n d}~0 0 ||kr�d}t|� ||���z�zHt |d�}| �| j|dd��W W z |�� W S ttf�y Y S 0 S t�yv z| j�d � W n0 t�y^ } ztd �|�W Y d}~n d}~0 0 t d |� d ��d�Y n0 W z |�� W n ttf�y� Y n0 n(z |�� W n ttf�y� Y n0 0 dS ) z'Handle a LOAD DATA INFILE LOCAL requestz#Use of symbolic link is not allowed�KLOAD DATA LOCAL INFILE file request rejected due to restrictions on access.NzL{} while loading file `{}` and path `{}` given in allow_local_infile_in_pathzEThe file `{}` is not found in the given allow_local_infile_in_path {}�rbT)r� rz r� zFile 'z' could not be read)r� �path�abspath�islinkr/ Z_allow_local_infile�_allow_local_infile_in_pathr* � commonpathr� r, �formatrv �openr� r� rm �IOError� NameErrorrR r� r� )rn r� � file_nameZ infile_pathZc_pathr� �err_msgr� rq rq rr �_handle_load_data_infile5 s\ � ���� � � z(MySQLConnection._handle_load_data_infiler> c C s� |rt |�dk rtd��|d dkr.| �|�S |d dkrT|dd� �� }| �|�S |d dkrj| �|�S |d dkr~t|��| j�|�}|r�t |t �s�td ��dg| | _ t d|�D ] }| j� | j�� | j�| j |< q�| �| j�� �}d | _| j |d �S ) a� Handle a MySQL Result This method handles a MySQL result, for example, after sending the query command. OK and EOF packets will be handled and returned. If the packet is an Error packet, an Error-exception will be raised. The dictionary returned of: - columns: column information - eof: the EOF-packet information Returns a dict() r� �Empty responser � � Nr� r� zIllegal result setT)�columnsr� )�lenr, r� �decoder� r� r1 rQ �parse_column_countr� r� rh �range� parse_columnrR r� �python_charset� unread_result)rn r� r� � column_count�ir� rq rq rr �_handle_resulte s2 �� � z MySQLConnection._handle_resultz Optional[List[DescriptionType]]zOptional[bool]zOptional[CMySQLPrepStmt]z1Tuple[Optional[RowType], Optional[EofPacketType]])�binaryr �raw� prep_stmtrN c C s. | j d|||d�\}}|r&|d |fS d|fS )aT Get the next rows returned by the MySQL server This method gets one row from the result set after sending, for example, the query command. The result is a tuple consisting of the row and the EOF packet. If no row was available in the result set, the row data will be None. Returns a tuple. r )�countr r r r N)�get_rows)rn r r r r �rowsr� rq rq rr �get_row� s zMySQLConnection.get_rowz Optional[int]z-Tuple[List[RowType], Optional[EofPacketType]])r r r r r rN c s |du r�j }�js td��g df}zF|rR�j}|dkr<d}�j��j|||�}n�jj�j�j|d�}W n. t y� } zd�_|�W Y d}~n d}~0 0 |\}} |s�|sވj dur�|r�t �d�rވj j � � �fdd �|D �}| du�r ��d | v r�| d n| d � d�_|| fS ) a Get all rows returned by the MySQL server This method gets all rows returned by the MySQL server after sending, for example, the query command. The result is a tuple consisting of a list of rows and the EOF packet. Returns a tuple() NzNo result set available�utf8mb4�utf8)r F� converterc s g | ]}� |�j ��qS rq )rh )rw �row�� row_to_pythonrn rq rr ry � rz z,MySQLConnection.get_rows.<locals>.<listcomp>r� Z server_status)rb r r- r� rQ Zread_binary_resultrR Zread_text_resultr� r+ rh r� r r r� ) rn r r r r r r r� r� Zeof_prq r rr r � sP � � ����� � �zMySQLConnection.get_rowsc C s | j r| �� dS )zConsume resultsN)r r r� rq rq rr �consume_results� s z MySQLConnection.consume_results)r� rN c C s | � | �tj|�d���S )z�Change the current database This method changes the current (default) database by sending the INIT_DB command. The result is a dictionary containing the OK packet information. Returns a dict() �utf-8)r� r� r ZINIT_DB�encode)rn r� rq rq rr r� � s �zMySQLConnection.cmd_init_dbrA )�queryr �buffered� raw_as_stringrN c C s� t |t�s&t |t�r |�d�}t|�}| jdkr6| jnd}t� }| jsZ| jrZtjdt d� | j t j @ �rg }g }g } dgt | j�d d } t| j�� �D �]�\} } | d } d}| d u r�| | d d | d > O < |�ttj�t|� � q�t | t��r| j�| �\}}}| �|� �n8t | t��rP| �|�} | �tt | ��| � tj}�nt | t��rz| �tt | ��| � tj}n�t | t��r�| �tt t| ��|���t| ��|� � tj}n�t | t ��r�| �t � d | �� tj }ntt | t j t j!f��r| j�"| �\}}| �|� nDt | t j#t j$f��r>| j�%| �\}}| �|� nt&d | j'j(� d ���|�t|�t|� � | d �|�}|�tt |��| � q�|�)tt | j��� |�)td �� | �r|�)d�*dd� | D ��td � � t+||�D ] \}}|�)|� |�)|� �q�| D ]} |�)| � �q|�)|� t|�}z| �,| �-t.j/|��}W nN t&�y� } z4|j0dk�rzd|j1v �rzd}t2|�|�� W Y d }~n d }~0 0 | j3�r�t4d��|S )a Send a query to the MySQL server This method send the query to the MySQL server and returns the result. If there was a text result, a tuple will be returned consisting of the number of columns and a list containing information about these columns. When the query doesn't return a text result, the OK or EOF packet information as dictionary will be returned. In case the result was an error, exception Error will be raised. Returns a tuple() r r r �<This version of the server does not support Query Attributes��categoryr � � r Nz<dz&MySQL binary protocol can not handle 'z ' objectsrz c S s g | ]}t �d |��qS )�B)�struct�pack)rw �bitrq rq rr ry P rz z-MySQLConnection.cmd_query.<locals>.<listcomp>il z Loading local data is disabledr� z8Use cmd_query_iter for statements with multiple queries.)5r� r� rv r r� rg � _query_attrs�warnings�warn�WarningrX r r� r � enumerate�items�appendrC r ZNULLr� rQ Zprepare_binary_integerrE �STRINGr� r ZDECIMAL�floatr' r( ZDOUBLE�datetime�dateZprepare_binary_timestamp� timedelta�timeZprepare_binary_timer0 rp �__name__�extendr� �zipr r� r �QUERYr� �msgr* ra r, )rn r r r r r� r� �names�types�valuesZ null_bitmap�posZ attr_tuple�valuer� �packedZ field_typer� �_type�resultr� r� rq rq rr � cmd_query� s� � � �� � ���� � �zMySQLConnection.cmd_queryz!Generator[ResultType, None, None])� statementsrN c c s� t � }t|t �s,t|t�r$|�d�}t |�}| jtj@ rT|�td�� |�td�� |�|� t |�}| � | � t j |��V | jr�| �� | � | j�� �V q|dS )at Send one or more statements to the MySQL server Similar to the cmd_query method, but instead returns a generator object to iterate through results. It sends the statements to the MySQL server and through the iterator you can get the results. statement = 'SELECT 1; INSERT INTO t1 VALUES (); SELECT 2' for result in cnx.cmd_query(statement, iterate=True): if 'columns' in result: columns = result['columns'] rows = cnx.get_rows() else: # do something useful with INSERT result Returns a generator. r r r N)r� r� rv r rX r r� r8 rE r� r r� r r: ra r� rR r� )rn rE r� r rq rq rr �cmd_query_iterm s z MySQLConnection.cmd_query_iter)�optionsrN c C s� |t jt jB t jB t jB t jB t jB @ s0td��|t j@ rD| �d�}|t j@ rX| �d�}|t j@ rl| �d�}|t j@ r�| �d�}|t j@ r�| �d�}|t j@ r�| �| j dk r�dnd �}|S ) a| Send the Refresh command to the MySQL server This method sends the Refresh command to the MySQL server. The options argument should be a bitwise value using constants.RefreshOption. Usage example: RefreshOption = mysql.connector.RefreshOption refresh = RefreshOption.LOG | RefreshOption.THREADS cnx.cmd_refresh(refresh) z Invalid command REFRESH optionzFLUSH PRIVILEGESz FLUSH LOGSz FLUSH TABLESz,TRUNCATE TABLE performance_schema.host_cachez FLUSH STATUS)r% r � z RESET SLAVEz RESET REPLICA) r ZGRANT�LOGZTABLESZHOSTZSTATUSZREPLICAr� rD r� )rn rG �resrq rq rr � cmd_refresh� s: ������ �zMySQLConnection.cmd_refreshc C s* | � � | j�tj�}| j�|dd� |S )a Close the current connection with the server This method sends the `QUIT` command to the MySQL server, closing the current connection. Since there is no response from the MySQL server, the packet that was sent is returned. Returns a str() r )r� rQ r� r ZQUITrR r� �rn r� rq rq rr r� � s zMySQLConnection.cmd_quit)� shutdown_typerN c C s | � d� dS )z�Shut down the MySQL Server This method sends the SHUTDOWN command to the MySQL server. The `shutdown_type` is not used, and it's kept for backward compatibility. �SHUTDOWNN)rD )rn rM rq rq rr � cmd_shutdown� s z MySQLConnection.cmd_shutdownr@ c C s8 | � � | j�tj�}| j�|dd� | j�| j�� �S )z�Send the statistics command to the MySQL Server This method sends the STATISTICS command to the MySQL server. The result is a dictionary with various statistical information. Returns a dict() r ) r� rQ r� r Z STATISTICSrR r� Zparse_statisticsr� rL rq rq rr �cmd_statistics� s z MySQLConnection.cmd_statistics)� mysql_pidrN c C s" t |t�std��| �d|� ��S )z�Kill a MySQL process This method send the PROCESS_KILL command to the server along with the process ID. The result is a dictionary with the OK packet information. zMySQL PID must be intzKILL )r� r� r� rD )rn rQ rq rq rr �cmd_process_kill� s z MySQLConnection.cmd_process_killc C s | � | �tj��S )aF Send the DEBUG command This method sends the DEBUG command to the MySQL server, which requires the MySQL user to have SUPER privilege. The output will go to the MySQL server error log and the result of this method is a dictionary with EOF packet information. Returns a dict() )r� r� r �DEBUGr� rq rq rr � cmd_debug� s zMySQLConnection.cmd_debugc C s | � | �tj��S )a Send the PING command This method sends the PING command to the MySQL server. It is used to check if the the connection is still valid. The result of this method is dictionary with OK packet information. Returns a dict() )r� r� r ZPINGr� rq rq rr �cmd_ping� s zMySQLConnection.cmd_pingrP zOptional[OkPacketType]) r� r� r� r� r� r� r� r� r� rN c C s� t |t�std��|dk r"td��d| _|| _|| _|| _|| _|| _| jr\|| jkr\| j}| � � | j rrt d��|r||| _ | | _ | jj| j| j| j|| j| j||| j| j| j| jd| j| j | j | jd�} | jtj@ s�|r�| �|� || _| � � | � | �S )z�Change the current logged in user This method allows to change the current logged in user information. The result is a dictionary with OK packet information. Returns a dict() zcharset must be an integerr z2charset should be either zero or a postive integerr z-Change user is not supported with compressionT)r� r� r� r� r� r� r� r� r� r� r� r� Zis_change_user_requestr� r� r� r� ) r� r� r� ri rZ r[ r� r� r� r� Z _compressr. r� r� rj r� rR rS rX re r� r� rf r� r r� r� rY �_post_connectionr� ) rn r� r� r� r� r� r� r� r� r� r� rq rq rr �cmd_change_user sT � z MySQLConnection.cmd_change_userc C s | � d�d S )zGet the current databasezSELECT DATABASE()r )� info_queryr� rq rq rr r� L s zMySQLConnection.database)r@ rN c C s | � |� dS )zSet the current databaseN)r� )rn r@ rq rq rr r� Q s c C s& z | � � W n ty Y dS 0 dS )a2 Reports whether the connection to MySQL Server is available This method checks whether the connection to MySQL is available. It is similar to ping(), but unlike the ping()-method, either True or False is returned and no exception is raised. Returns True or False. FT)rU r+ r� rq rq rr � is_connectedV s z MySQLConnection.is_connected)r� rN c C s || _ dS )zySet the path that user can upload files. Args: path (str): Path that user can upload files. N)r� )rn r� rq rq rr � set_allow_local_infile_in_pathe s z.MySQLConnection.set_allow_local_infile_in_pathzOptional[Dict[str, Any]])�user_variables�session_variablesrN c C s� | � � std��| �� sdz0| �| j| j| j| j| j| j | j | j | j � W n t yb | �� Y n0 | �� }|r�|�� D ] \}}|�d|� d�|f� qx|r�|�� D ] \}}|�d|� d�|f� q�dS )a� Clears the current active session This method resets the session state, if the MySQL server is 5.7.3 or later active session will be reset without re-authenticating. For other server versions session will be reset by re-authenticating. It is possible to provide a sequence of variables and their values to be set after clearing the session. This is possible for both user defined variables and session variables. This method takes two arguments user_variables and session_variables which are dictionaries. Raises OperationalError if not connected, InternalError if there are unread results and InterfaceError on errors. z MySQL Connection not available.zSET @`z` = %sz SET SESSION `N)rY r/ �cmd_reset_connectionrW rZ r[ r\ rY r� r� r� r� r� r0 � reconnect�cursorr/ �execute)rn r[ r\ �cur�keyr@ rq rq rr � reset_sessionm s0 � z MySQLConnection.reset_sessionr )r^ �attempts�delayrN c C sT z | � � W nB tyN } z*|r0| j||d� n td�|�W Y d}~n d}~0 0 dS )a� Check availability of the MySQL server When reconnect is set to True, one or more attempts are made to try to reconnect to the MySQL server using the reconnect()-method. delay is the number of seconds to wait between each retry. When the connection is not available, an InterfaceError is raised. Use the is_connected()-method if you just want to check the connection without raising an error. Raises InterfaceError on errors. )rd re z$Connection to MySQL is not availableN)rU r+ r^ r, )rn r^ rd re r� rq rq rr �ping� s zMySQLConnection.pingc C s | j r| j �d�S dS )zMySQL connection IDZserver_threadidN)rS r� r� rq rq rr � connection_id� s z MySQLConnection.connection_idzOptional[Type[MySQLCursor]]r )r r �prepared� cursor_class� dictionary� named_tuplerN c s$ | � � | �� std��|dur:t|t�s2td��|| �S |durF|n| j}|durX|n| j}d�|du rr�dO �|du r��dO �|du r��dO �|du r��d O �|du r��d O �tt t t t t ttttttd � }z|� | �W S t�y d � td d�� �fdd�td�D �� �d�Y n0 dS )a� Instantiates and returns a cursor By default, MySQLCursor is returned. Depending on the options while connecting, a buffered and/or raw cursor is instantiated instead. Also depending upon the cursor options, rows can be returned as dictionary or named tuple. Dictionary and namedtuple based cursors are available with buffered output but not raw. It is possible to also give a custom cursor through the cursor_class parameter, but it needs to be a subclass of mysql.connector.cursor.CursorBase. Raises ProgrammingError when cursor_class is not a subclass of CursorBase. Raises ValueError when cursor is not available. Returns a cursor-object r� Nz6Cursor class needs be to subclass of cursor.CursorBaser Tr � r� r% r� ) r r rl r{ r� r r% � r� � � � )r r rj rk rh z*Cursor not available with given criteria: z, c s$ g | ] }�d |> @ dkr� | �qS )r r rq )rw r ��argsZ cursor_typerq rr ry rz z*MySQLConnection.cursor.<locals>.<listcomp>r )r� rY r/ � issubclassr r0 r` rb r r r) r" r# r r$ r! r% r( r& r' �KeyErrorr� r� r )rn r r rh ri rj rk r= rq rq rr r_ � s\ �� ���zMySQLConnection.cursorc C s | � d� dS )zCommit current transactionZCOMMITN)�_execute_queryr� rq rq rr �commit s zMySQLConnection.commitc C s | j r| �� | �d� dS )z Rollback current transactionZROLLBACKN)r r ru r� rq rq rr �rollback s zMySQLConnection.rollback)r rN c C s | � � | �|� dS )a Execute a query This method simply calls cmd_query() after checking for unread result. If there are still unread result, an InterfaceError is raised. Otherwise whatever cmd_query() returns is returned. Returns a dict() N)r� rD )rn r rq rq rr ru s z MySQLConnection._execute_queryzOptional[RowType]c C s | j dd�}|�|� |�� S )z%Send a query which only returns 1 rowT)r )r_ r` Zfetchone)rn r r_ rq rq rr rX s zMySQLConnection.info_queryzDict[str, int]c C s8 |d dkr| j �|�S |d dkr,t|��td��dS )a> Handle a MySQL Binary Protocol OK packet This method handles a MySQL Binary Protocol OK packet. When the packet is found to be an Error packet, an error will be raised. If the packet is neither an OK or an Error packet, InterfaceError will be raised. Returns a dict() r� r r� zExpected Binary OK packetN)rQ Zparse_binary_prepare_okr1 r, rL rq rq rr �_handle_binary_ok# s z!MySQLConnection._handle_binary_okzEUnion[OkPacketType, Tuple[int, List[DescriptionType], EofPacketType]]c C s� |rt |�dk rtd��|d dkr.| �|�S |d dkrD| �|�S |d dkrXt|��| j�|�}|rrt|t�sztd��dg| }t d|�D ] }| j� | j � � | j �||< q�| �| j � � �}|||fS )a� Handle a MySQL Result This method handles a MySQL result, for example, after sending the query command. OK and EOF packets will be handled and returned. If the packet is an Error packet, an Error exception will be raised. The tuple returned by this method consist of: - the number of columns in the result, - a list of tuples with information about the columns, - the EOF packet information as a dictionary. Returns tuple() or dict() r� r r r� r� zIllegal result set.N)r r, r� r� r1 rQ r r� r� r r rR r� r )rn r� r r r r� rq rq rr �_handle_binary_result3 s$ � z%MySQLConnection._handle_binary_result)� statement_idr rN c C s0 | j �||�}d| _| jtj|dd� d| _dS )z�Fetch a MySQL statement Result Set This method will send the FETCH command to MySQL together with the given statement id and the number of rows to fetch. F�r� TN)rQ Zmake_stmt_fetchr r� r Z STMT_FETCH)rn rz r r� rq rq rr �cmd_stmt_fetchZ s z MySQLConnection.cmd_stmt_fetchz/Mapping[str, Union[int, List[DescriptionType]]])� statementrN c C s� | � tj|�}| �|�}g |d< g |d< |d dkrxtd|d �D ]$}|d �| j�| j� � | j �� qB| � | j� � � |d dkr�td|d �D ]$}|d �| j�| j� � | j �� q�| � | j� � � |S )z�Prepare a MySQL statement This method will send the PREPARE command to MySQL together with the given statement. Returns a dict() r � parametersZ num_paramsr Z num_columns) r� r Z STMT_PREPARErx r r0 rQ r rR r� r r� )rn r} r� rC r� rq rq rr �cmd_stmt_preparee s* �� ��z MySQLConnection.cmd_stmt_preparerq z Sequence[BinaryProtocolType]r )rz �datar~ r� rN c C s t |�}i }|rvt|�D ]\\}}t|| t�rd}zd|| jv}W n tyV Y n0 | �|||| � |f||< q| js�| jr�t j dt d� | j t j@ r�| j�||t|�||| j| j| j�} n"| jj||t|�||| j| jd�} | jtj| d�} | �| �} | S )z"Execute a prepared MySQL statementT�br! r" )Zconverter_str_fallback)r� )�listr. r� r �moder� �cmd_stmt_send_long_datarg r* r+ r, r- rX r r� rQ Zmake_stmt_execute�tupler� Z query_attrsZ_converter_str_fallbackr� r Z STMT_EXECUTEry ) rn rz r� r~ r� Zlong_data_used�param_idr� r Zexecute_packetr� rC rq rq rr �cmd_stmt_execute� sP � � � z MySQLConnection.cmd_stmt_execute)rz rN c C s | j tjt|�dd� dS )z�Deallocate a prepared MySQL statement This method deallocates the prepared statement using the statement_id. Note that the MySQL server does not return anything. Fr{ N)r� r Z STMT_CLOSErD �rn rz rq rq rr �cmd_stmt_close� s �z MySQLConnection.cmd_stmt_close)rz r� r� rN c C s� d}d}zL|� |�}|rR| j�|||�}| jtj|dd� |t|�7 }|� |�}qW n. ty� } ztd�|�W Y d}~n d}~0 0 |S )a. Send data for a column This methods send data for a column (for example BLOB) for statement identified by statement_id. The param_id indicate which parameter the data belongs too. The data argument should be a file-like object. Since MySQL does not send anything back, no error is raised. When the MySQL server is not reachable, an OperationalError is raised. cmd_stmt_send_long_data should be called before cmd_stmt_execute. The total bytes send is returned. Returns int. r� r F)r� r� r� N) r� rQ Zprepare_stmt_send_long_datar� r ZSTMT_SEND_LONG_DATAr r� r/ ) rn rz r� r� r� � total_sentr� r� r� rq rq rr r� � s$ �� z'MySQLConnection.cmd_stmt_send_long_datac C s | � | �tjt|��� dS )z�Reset data for prepared statement sent as long data The result is a dictionary with OK packet information. Returns a dict() N)r� r� r Z STMT_RESETrD r� rq rq rr �cmd_stmt_reset� s z MySQLConnection.cmd_stmt_resetc C s> z | � | �tj�� | �� W dS ttfy8 Y dS 0 dS )z�Resets the session state without re-authenticating Reset command only works on MySQL server 5.7.3 or later. The result is True for a successful reset otherwise False. Returns bool TFN)r� r� r ZRESET_CONNECTIONrV r. r/ r� rq rq rr r] � s z$MySQLConnection.cmd_reset_connectionc C s" | j r| �� n| jr td��dS )z'Check whether there is an unread resultzUnread result foundN)Zcan_consume_resultsr r r- r� rq rq rr r� s z$MySQLConnection.handle_unread_result)NNNr rO NN)Nr NTr )F)FNNN)NFNNN)FFF)N) rP rP rP rO rP rP rP rP rP )NN)Fr r )NNNNNN)r )rq rq r )<r7 � __module__� __qualname__�__doc__rU r� r� r� r� r� r� rm Z disconnectr� r� r� �propertyr� r� r� r� r r r r r� r7 rD rF rK r� rO rP rR rT rU rW r� �setterrY rZ rc rf rg r_ rv rw ru rX rx ry r| r r� r� r� r� r] r� � __classcell__rq rq ro rr rK � s� 8/ � H8 � & �" 0- � �; �z*% �"I �/ � M ' " �3 ' rK )cr� � __future__r r3 r� r� r� r' r� r+ �decimalr �ior �typingr r r r r r r r r r r r rP r Z abstractsr Zauthenticationr r � constantsr r r r r r � conversionr r_ r r r r r! r" r# r$ r% r& r' r( r) �errorsr* r+ r, r- r. r/ r0 r1 r2 �networkr3 r4 r5 Zopentelemetry.constantsr6 Z!opentelemetry.context_propagationr7 �protocolr8 r= r9 r: r; r< r= r> r? r@ rA �utilsrB rC rD rE rF rG rH Z opentelemetry.instrumentationrI rJ rK rq rq rq rr �<module> s< 8 <( ,