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편집 파일: connection.cpython-38.pyc
U )�e1� � @ s� d Z ddlmZ ddlZddlZddlmZ ddlmZm Z ddl m Z m Z m Z mZmZmZ ddlmZ dd lmZ dd lmZmZmZmZmZmZm Z m Z m Z m Z dd l m!Z!m"Z" dd l#m$Z$ dd l%m&Z& ddl'm(Z( G dd� de(�Z)dS )z/Implementing communication with MySQL servers. � )�IOBaseN� )�get_auth_plugin)�PY2�isstr)� ClientFlag� ServerCmd� ServerFlag� flag_is_set� ShutdownType�NET_BUFFER_LENGTH)�errors)�MySQLConverter) � CursorBase� MySQLCursor�MySQLCursorRaw�MySQLCursorBuffered�MySQLCursorBufferedRaw�MySQLCursorPrepared�MySQLCursorDict�MySQLCursorBufferedDict�MySQLCursorNamedTuple� MySQLCursorBufferedNamedTuple)�MySQLUnixSocket�MySQLTCPSocket)� MySQLProtocol)� int4store)�MySQLConnectionAbstractc s� e Zd ZdZ� fdd�Zdd� Zdod d �Zdpd d �Zdqd d�Zdd� Z dd� Z dd� Z e Z drdd�Z dsdd�Zdd � Zed d � �Zd d � Zd!d"� Zd#d$� Zd%d&� Zdtd'd(�Zdud)d*�Zd+d,� Zd-d.� Zdvd/d0�Zd1d2� Zd3d4� Z d5d6� Z dwd7d8�Z d9d:� Z d;d<� Z d=d>� Z!d?d@� Z"dxdBdC�Z#edDdE� �Z$e$j%dFdE� �Z$dGdH� Z&dydIdJ�Z'dzdLdM�Z(d{dNdO�Z)edPdQ� �Z*d|dRdS�Z+dTdU� Z,dVdW� Z-dXdY� Z.dZd[� Z/d\d]� Z0d^d_� Z1d`da� Z2d}dcdd�Z3dedf� Z4dgdh� Z5didj� Z6dkdl� Z7dmdn� Z8� Z9S )~�MySQLConnectionz Connection to a MySQL Serverc s� d | _ d | _d | _tt| �j||� t| _t� � | _ d| _ d | _ d | _ d| _d| _d| _d| _d| _d| _d | _d| _d| _i | _d| _d| _d| _d| _d | _ d| _ d| _ d| _ d| _ d| _!d | _"d| _#d | _$d | _%t&|�dkr�| j'f |� d S )N�! F� z 127.0.0.1i� r T)(� _protocol�_socket� _handshake�superr �__init__r �_converter_classr � get_default� _client_flags� _charset_idZ _sql_modeZ _time_zoneZ _autocommit�_user� _password� _databaseZ_hostZ_portZ _unix_socketZ _client_hostZ _client_port�_ssl� _force_ipv6Z _use_unicodeZ _get_warningsZ_raise_on_warnings�_connection_timeout� _bufferedZ_unread_result�_have_next_result�_raw�_in_transactionZ_prepared_statements� _ssl_active� _auth_pluginZ_pool_config_version�len�connect)�self�args�kwargs�� __class__� �o/opt/hc_python/lib64/python3.8/site-packages/../../../lib/python3.8/site-packages/mysql/connector/connection.pyr% 5 sF zMySQLConnection.__init__c C s� | j �� }|d dkr t�|��d| _z| j�|�}W n2 tk rh } zt�d� |���W 5 d}~X Y nX | � |d �| _ |d t j @ r�| �t j g� || _dS )z'Get the handshake from the MySQL server� � Nz Failed parsing handshake; {0}Zserver_version_originalZ capabilities)r" �recvr � get_exceptionr# r! Zparse_handshake� Exception�InterfaceError�formatZ_check_server_version�_server_versionr Z PLUGIN_AUTHZset_client_flags)r8 �packet� handshake�errr= r= r> � _do_handshakea s ��z MySQLConnection._do_handshakeNr r c C s� d| _ |tj@ rD|rD| jj||d�}| j�|� | jjf |� d| _ | jj| j |||||| j | j d�}| j�|� | � ||� |tj @ 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. F)�charset� client_flagsT�rH �username�password�databaserK rL � ssl_enabledZ auth_plugin)r4 r ZSSLr! Z make_auth_sslr" �sendZ switch_to_sslZ make_authr# r5 �_auth_switch_request�CONNECT_WITH_DB� cmd_init_db)r8 rN rO rP rL rK Z ssl_optionsrG r= r= r> �_do_authv s. � � zMySQLConnection._do_authc C s� | j �� }|d dkr.t|�dkr.t�d��n�|d dkr�| j�|�\}}t|�||| jd�}|� � }| j � |� | j �� }|d dkr�| � |�S | j� |�}n|d dkr�t� |��dS ) z�Handle second part of authentication Raises NotSupportedError when we get the old, insecure password reply back. Raises any error coming from MySQL. r? � � z�Authentication with old (insecure) passwords is not supported. For more information, lookup Password Hashing in the latest MySQL manual)rO rQ r r@ N)r" rA r6 r �NotSupportedErrorr! Zparse_auth_switch_requestr r4 Z auth_responserR � _handle_okZparse_auth_more_datarB )r8 rN rO rG Znew_auth_pluginZ auth_data�auth�responser= r= r> rS � s, � � � z$MySQLConnection._auth_switch_requestc C sF d}| j r"tjdkr"t| j d�}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�nt)� unix_socket)�host�portZ force_ipv6) r^ �os�namer r Z server_hostZ server_portr. Zset_connection_timeoutr/ )r8 Zprtcls�connr= r= r> �_get_connection� s � z MySQLConnection._get_connectionc C sx t � | _| �� | _| j�� | �� | �| j| j| j | j | j | j � | � | j� | j tj@ rt| jj| j_| jj| j_dS )z�Open the connection to the MySQL server This method sets up and opens the connection to the MySQL server. Raises on errors. N)r r! rd r" �open_connectionrJ rV r* r+ r, r( r) r- Zset_converter_classr& r ZCOMPRESSZrecv_compressedrA Zsend_compressedrR �r8 r= r= r> �_open_connection� s � z MySQLConnection._open_connectionc C s8 | j s dS z| j �� W n ttjfk r2 Y nX dS )z.Shut down connection to MySQL Server. N)r" �shutdown�AttributeErrorr �Errorrf r= r= r> rh � s zMySQLConnection.shutdownc C s@ | j s dS z| �� | j �� W n ttjfk r: Y nX dS )z Disconnect from the MySQL serverN)r" �cmd_quitZclose_connectionri r rj rf r= r= r> �close� s zMySQLConnection.closeTc C s\ | � � z"| j�| j�||p |�||� W n tk rH t�d��Y nX |sRdS | j�� S )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 available.N) �handle_unread_resultr" rR r! � make_commandri r �OperationalErrorrA )r8 �command�argumentZ packet_numberrG �expect_responseZcompressed_packet_numberr= r= r> � _send_cmd� s �zMySQLConnection._send_cmdFc C s� | � � t|d�std��z2|�td �}|rJ| j�|� |�td �}q*W n tk rj t� d��Y nX |r�z| j�d� W n tk r� t� d��Y nX | 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� rm � ) rn �hasattr� ValueErrorru r r" rR ri r rp rA )r8 � data_file�send_empty_packet�bufr= r= r> � _send_data s$ � zMySQLConnection._send_datac 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_EXISTSr1 ZSTATUS_IN_TRANSr3 )r8 �flagsr= r= r> �_handle_server_status- s �z%MySQLConnection._handle_server_statusc C s | j S )z'MySQL session has started a transaction)r3 rf r= r= r> �in_transaction8 s z MySQLConnection.in_transactionc C sN |d dkr*| j �|�}| �|d � |S |d dkr@t�|��t�d��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, errors.InterfaceError will be raised. Returns a dict() r? r � status_flagr@ zExpected OK packetN)r! Zparse_okr r rB rD )r8 rG Zok_pktr= r= r> rZ = s zMySQLConnection._handle_okc C sN |d dkr*| j �|�}| �|d � |S |d dkr@t�|��t�d��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, errors.InterfaceError will be raised. Returns a dict() r? rW r� r@ zExpected EOF packetN)r! Z parse_eofr r rB rD )r8 rG �eofr= r= r> � _handle_eofN s zMySQLConnection._handle_eofc C sx zt |d�}W nT tk rb z| j�d� W n tk rL t�d��Y nX t�d�|���Y nX | � | j |dd��S )z'Handle a LOAD DATA INFILE LOCAL request�rbrw rm z File '{0}' could not be readT)r{ ) �open�IOErrorr" rR ri r rp rD rE rZ r} )r8 �filenamerz r= r= r> �_handle_load_data_infile_ s � � �z(MySQLConnection._handle_load_data_infilec C s |rt |�dk r t�d��n~|d dkr2| �|�S |d dkrntrTt|dd� �}n|dd� �� }| �|�S |d dkr�| �|�S |d dkr�t� |��| j � |�}|r�t |t �s�t�d ��dg| }td|�D ] }| j �| j�� | j�||< q�| �| j�� �}d | _||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 errors.Error-exception will be raised. The dictionary returned of: - columns: column information - eof: the EOF-packet information Returns a dict() r? �Empty responser � rX NrW r@ �Illegal result set.T)�columnsr� )r6 r rD rZ r �str�decoder� r� rB r! �parse_column_count� isinstance�int�range� parse_columnr" rA �python_charset� unread_result)r8 rG r� � column_countr� �ir� r= r= r> �_handle_resultp s2 � z MySQLConnection._handle_resultc C s0 | j d||d�\}}t|�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 )�count�binaryr� r N)�get_rowsr6 )r8 r� r� �rowsr� r= r= r> �get_row� s zMySQLConnection.get_rowc C s� | j st�d��z2|r*| j�| j||�}n| jj| j| j|d�}W n. tjk rp } zd| _ |�W 5 d}~X Y nX |d dk r�|d }| � d|kr�|d n|d � d| _ |S )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() zNo result set available.)r� FN���r� Z server_status) r� r � InternalErrorr! Zread_binary_resultr" Zread_text_resultrF rj r )r8 r� r� r� r� rI Zekr= r= r> r� � s$ � zMySQLConnection.get_rowsc C s | j r| �� dS )zConsume results N)r� r� rf r= r= r> �consume_results� s z MySQLConnection.consume_resultsc 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)rZ rt r ZINIT_DB�encode)r8 rP r= r= r> rU � s �zMySQLConnection.cmd_init_dbc C s< t |t�s|�d�}| �| �tj|��}| jr8t� d��|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 errors.Error will be raised. Returns a tuple() r� z8Use cmd_query_iter for statements with multiple queries.) r� �bytesr� r� rt r �QUERYr1 r rD )r8 �query�raw�bufferedZ raw_as_string�resultr= r= r> � cmd_query� s �zMySQLConnection.cmd_queryc c sf t |t�s*t|�r"t|�d��}nt|�}| �| �tj|��V | jrb| � � | �| 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� N) r� � bytearrayr r� r� rt r r� r1 rn r" rA )r8 Z statementsr= r= r> �cmd_query_iter� s z MySQLConnection.cmd_query_iterc C s | � | �tjt|���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) The result is a dictionary with the OK packet information. Returns a dict() )rZ rt r ZREFRESHr )r8 �optionsr= r= r> � 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 the no response can be returned to the client, cmd_quit() will return the packet it send. Returns a str() r )rn r! ro r ZQUITr" rR �r8 rG r= r= r> rk " s zMySQLConnection.cmd_quitc C s< |r t �|�st�d��|}nt j}| �| �tjt |���S )aZ Shut down the MySQL Server This method sends the SHUTDOWN command to the MySQL server and is only possible if the current user has SUPER privileges. The result is a dictionary containing the OK packet information. Note: Most applications and scripts do not the SUPER privilege. Returns a dict() zInvalid shutdown type) r �get_infor rD ZSHUTDOWN_DEFAULTr� rt r �SHUTDOWNr )r8 Z shutdown_typeZatyper= r= r> � cmd_shutdown1 s �z MySQLConnection.cmd_shutdownc 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 ) rn r! ro r Z STATISTICSr" rR Zparse_statisticsrA r� r= r= r> �cmd_statisticsE s z MySQLConnection.cmd_statisticsc C s | � | �tjt|���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. Returns a dict() )rZ rt r Z PROCESS_KILLr )r8 Z mysql_pidr= r= r> �cmd_process_killS 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� rt r �DEBUGrf r= r= r> � 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() )rZ rt r ZPINGrf r= r= r> �cmd_pingk s zMySQLConnection.cmd_pingr c C s� | � � | jrt�d��| jj| j||||| j| j| j d�}| j � |dd� | � ||�}z | jt j@ st|rt| �|� W n � Y nX || _| �� |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() z.Change user is not supported with compression.rM r )rn Z _compressr rY r! Zmake_change_userr# r( r4 r5 r" rR rS r rT rU r) �_post_connection)r8 rN rO rP rK rG Z ok_packetr= r= r> �cmd_change_userv s2 � �z MySQLConnection.cmd_change_userc C s | � d�d S )zGet the current databasezSELECT DATABASE()r )� info_queryrf r= r= r> rP � s zMySQLConnection.databasec C s | � d| � dS )zSet the current databasezUSE %sN)r� )r8 �valuer= r= r> rP � s c C s z | � � W n Y dS X 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)r� rf r= r= r> � is_connected� s z MySQLConnection.is_connectedc C s� | � � st�d��z | �� W n. tjk rL | �| j| j| j| j � Y nX | � � }|r�|� � D ] \}}|� d� |�|f� qb|r�|� � 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. rm zSET @`{0}` = %szSET SESSION `{0}` = %sN)r� r rp �cmd_reset_connectionrY r� r* r+ r, r) �cursor�items�executerE )r8 Zuser_variablesZsession_variables�cur�keyr� r= r= r> � reset_session� s � z MySQLConnection.reset_sessionr c C s� d}||kr�|d }z | � � | �� | �� r2W q�W nD tk rx } z&||krhd�|t|��}t�|��W 5 d}~X Y nX |dkrt� |� qdS )a� Attempt to reconnect to the MySQL server The argument attempts should be the number of times a reconnect is tried. The delay argument is the number of seconds to wait between each retry. You may want to set the number of attempts higher and use delay when you expect the MySQL server to be down for maintenance or when you expect the network to be temporary unavailable. Raises InterfaceError on errors. r r z4Can not reconnect to MySQL after {0} attempt(s): {1}N) � disconnectr7 r� rC rE r� r rD �time�sleep)r8 �attempts�delay�counterrI �msgr= r= r> � reconnect� s" � zMySQLConnection.reconnectc C s< z | � � W n* |r(| j||d� n t�d��Y nX 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. )r� r� z%Connection to MySQL is not available.N)r� r� r rD )r8 r� r� r� r= r= r> �ping� s zMySQLConnection.pingc C s( z | j d W S tk r" Y dS X dS )zMySQL connection IDZserver_threadidN)r# �KeyErrorrf r= r= r> � connection_id s z MySQLConnection.connection_idc s" | � � | �� st�d��|dk r>t|t�s6t�d��|| �S |dk rJ|n| j}|dk r\|n| j}d�|dkrv�dO �|dkr��dO �|dkr��dO �|dkr��d O �|dkr��d O �t t t t t ttttd � }z|� | �W S tk �r d � td d�� �fdd�td�D �� ��Y nX 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 rm Nz6Cursor class needs be to subclass of cursor.CursorBaser Tr � r? � rv ) r r r� � r? rX r� � rv )r� r� � dictionary� named_tuple�preparedz*Cursor not available with given criteria: z, c s$ g | ] }�d |> @ dkr� | �qS )r r r= )�.0r� �r9 Z cursor_typer= r> � <listcomp>O s �z*MySQLConnection.cursor.<locals>.<listcomp>rX )rn r� r rp � issubclassr ZProgrammingErrorr0 r2 r r r r r r r r r r� ry �joinr� )r8 r� r� r� Z cursor_classr� r� �typesr= r� r> r� sN �� �zMySQLConnection.cursorc C s | � d� dS )zCommit current transactionZCOMMITN)�_execute_queryrf r= r= r> �commitR s zMySQLConnection.commitc C s | j r| �� | �d� dS )z Rollback current transactionZROLLBACKN)r� r� r� rf r= r= r> �rollbackV s zMySQLConnection.rollbackc 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 errors.InterfaceError is raised. Otherwise whatever cmd_query() returns is returned. Returns a dict() N)rn r� )r8 r� r= r= r> r� ] s z MySQLConnection._execute_queryc C s | j dd�}|�|� |�� S )z%Send a query which only returns 1 rowT)r� )r� r� Zfetchone)r8 r� r� r= r= r> r� i s zMySQLConnection.info_queryc C s< |d dkr| j �|�S |d dkr.t�|��t�d��dS )aE 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, errors.InterfaceError will be raised. Returns a dict() r? r r@ zExpected Binary OK packetN)r! Zparse_binary_prepare_okr rB rD r� r= r= r> �_handle_binary_oko s z!MySQLConnection._handle_binary_okc C s� |rt |�dk r t�d��nB|d dkr2| �|�S |d dkrH| �|�S |d dkr^t�|��| j�|�}|rxt|t �s�t�d��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 errors.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 rW r@ r� N)r6 r rD rZ r� rB r! r� r� r� r� r� r" rA r� )r8 rG r� r� r� r� r= r= r> �_handle_binary_result s& � z%MySQLConnection._handle_binary_resultc 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) rt r Z STMT_PREPAREr� r� �appendr! r� r" rA r� r� )r8 Z statementrG r� �_r= r= r> �cmd_stmt_prepare� s* �� ��z MySQLConnection.cmd_stmt_preparer= c C s� t |�}i }|rxt|�D ]^\}}t|| t�rd}zd|| jk}W n tk rX Y nX | �|||| � |f||< q| j�||t |�||| j �} | j t j | d�} | �| �} | S )z"Execute a prepared MySQL statementT�b)rG )�list� enumerater� r �moderi �cmd_stmt_send_long_datar! Zmake_stmt_execute�tuplerK rt r Z STMT_EXECUTEr� ) r8 � statement_id�datar� r~ Zlong_data_used�param_idr� r� Zexecute_packetrG r� r= r= r> �cmd_stmt_execute� s2 � � z MySQLConnection.cmd_stmt_executec 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. F)rs N)rt r Z STMT_CLOSEr �r8 r� r= r= r> �cmd_stmt_close� s �z MySQLConnection.cmd_stmt_closec C s| d}d}| j j}zH|�|�}|rV||||�}| jtj|dd� |t|�7 }|�|�}q W n tk rv t� d��Y nX |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. i r F)rG rs rm ) r! Z _prepare_stmt_send_long_dataru rt r ZSTMT_SEND_LONG_DATAr6 ri r rp ) r8 r� r� r� � chunk_size� total_sentZprepare_packetr| rG r= r= r> 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)rZ rt r Z STMT_RESETr r� r= r= r> �cmd_stmt_reset s �z MySQLConnection.cmd_stmt_resetc C s2 | j dk rt�d��| �| �tj�� | �� dS )z�Resets the session state without re-authenticating Works only for MySQL server 5.7.3 or later. The result is a dictionary with OK packet information. Returns a dict() )rX � r� zFMySQL version 5.7.2 and earlier does not support COM_RESET_CONNECTION.N)rF r rY rZ rt r ZRESET_CONNECTIONr� rf r= r= r> r� s z$MySQLConnection.cmd_reset_connectionc C s$ | j r| �� n| jr t�d��dS )z'Check whether there is an unread resultzUnread result foundN)Zcan_consume_resultsr� r� r r� rf r= r= r> rn s z$MySQLConnection.handle_unread_result)NNNr r N)NN)N)Nr NTr )F)FN)NFN)FFF)N)r r r r )NN)r r )Fr r )NNNNNN)r= r= r ):�__name__� __module__� __qualname__�__doc__r% rJ rV rS rd rg rh rl r� rt r} r �propertyr� rZ r� r� r� r� r� r� rU r� r� r� rk r� r� r� r� r� r� rP �setterr� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� rn � __classcell__r= r= r; r> r 3 s� , � ! � + � % ! � A % # r )*r� �ior ra r� Zauthenticationr Zcatch23r r � constantsr r r r r r r r � conversionr r� r r r r r r r r r r �networkr r �protocolr �utilsr Z abstractsr r r= r= r= r> �<module> s 0