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U U Y^� � @ sr d dl Z d dlZd dlZd dlZd dlZz d dlZW n ek rT d dlmZ Y nX z d dl Z W n ek r~ d dl Z Y nX d dl Z d dl m Z mZmZmZmZmZ e je je je jd�ZdZdZdZdZdZ d Z d Z d Z d Z d Z!dZ"dZ#dZ$dZ%dZ&dZ'dZ(dZ)dZ*dZ+dZ,dZ-dZ.dZ/dZ0dZ1d Z2d Z3d Z4d Z5d Z6d!Z7d"Z8d#Z9d$Z:d%Z;d&Z<d'Z=d(Z>d)Z?d*Z@d+ZAd,ZBd-ZCd.ZDe-e9e.e:e/e;e0e<e1e=e2e>e3e?e4e@e5eAe6eBe7eCe8eDi ZEdZFdZGdZHdZIdZJdZKd ZLd ZMd ZNd ZOd ZPd!ZQd"ZRd/ZSd0ZTd1ZUd2ZVd3ZWd4ZXd5ZYd6ZZd7Z[d8Z\d9Z]d:Z^d;Z_d<Z`d=Zad6Zbd7Zcd8Zdd9Zed:Zfd;Zgd<Zhd=ZidZjdZkdZle jmd=e jnd<e jod>e jpd;e jqd?iZresd@dA� er�t� D ��Zue jvd=e jwd>e jxd<iZyesdBdA� ey�t� D ��Zzd Z{d=Z|d<Z}dCZ~dDZdEZ�dFZ�G dGdH� dHe��Z�G dIdJ� dJe��Z�G dKdL� dLe �Z�G dMdN� dNe��Z�e�dOk�rnd dl�Z�e�dPdQ�Z�e�j���dR��e��� e�j���dS� e���dT� e���� e�j���dU��e���d?��� e���� dS )V� N)� SerialBase�SerialException�to_bytes� iterbytes�portNotOpenError�Timeout)�debug�info�warning�error� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �s ��� � � � ,� � � � � � � � � � � e� f� g� h� i� j� k� l� m� n� o� p� � � � � � � � �@ � � � � � � � � c c s | ]\}}||fV qd S �N� ��.0�k�vrH rH �0/usr/lib/python3/dist-packages/serial/rfc2217.py� <genexpr>� s rN c c s | ]\}}||fV qd S rG rH rI rH rH rM rN � s � REQUESTED�ACTIVE�INACTIVE�REALLY_INACTIVEc @ s* e Zd ZdZd dd�Zdd� Zdd� ZdS ) � TelnetOptionz@Manage a single telnet option, keeps track of DO/DONT WILL/WONT.Nc C s@ || _ || _|| _|| _|| _|| _|| _|| _d| _| | _ dS )a; Initialize option. :param connection: connection used to transmit answers :param name: a readable name for debug outputs :param send_yes: what to send when option is to be enabled. :param send_no: what to send when option is to be disabled. :param ack_yes: what to expect when remote agrees on option. :param ack_no: what to expect when remote disagrees on option. :param initial_state: options initialized with REQUESTED are tried to be enabled on startup. use INACTIVE for all others. FN) � connection�name�option�send_yes�send_no�ack_yes�ack_no�state�active�activation_callback) �selfrT rU rV rW rX rY rZ Z initial_stater] rH rH rM �__init__� s zTelnetOption.__init__c C s dj | d�S )zString for debug outputsz {o.name}:{o.active}({o.state}))�o��format�r^ rH rH rM �__repr__ s zTelnetOption.__repr__c C s& || j kr�| jtkr4t| _d| _| jdk r�| �� nt| jtkr@nh| jtkr|t| _| j�| j | j � d| _| jdk r�| �� n,| jt kr�| j�| j | j � nt d�| ���nx|| jk�r"| jtkr�t| _d| _nT| jtkr�t| _| j�| j | j � d| _n*| jtk�rn | jt k�rnt d�| ���dS )zo A DO/DONT/WILL/WONT was received for this option, update state and answer when needed. TNz option in illegal state {!r}F)rY r[ rO rP r\ r] rQ rT �telnet_send_optionrW rV rR rX � ValueErrorrb rZ �r^ �commandrH rH rM �process_incoming s< z TelnetOption.process_incoming)N)�__name__� __module__� __qualname__�__doc__r_ rd ri rH rH rH rM rS � s � rS c @ sL e Zd ZdZddd�Zdd� Zdd� Zd d � Zee�Z dd d �Z dd� Z dS )�TelnetSubnegotiationz� A object to handle subnegotiation of options. In this case actually sub-sub options for RFC 2217. It is used to track com port options. Nc C s4 |d kr |}|| _ || _|| _d | _|| _t| _d S rG )rT rU rV �value� ack_optionrQ r[ )r^ rT rU rV rp rH rH rM r_ 7 s z TelnetSubnegotiation.__init__c C s dj | d�S )zString for debug outputs.z{sn.name}:{sn.state})Zsnra rc rH rH rM rd A s z TelnetSubnegotiation.__repr__c C sD || _ t| _| j�| j| j � | jjr@| jj�d�| j | j �� dS )z� Request a change of the value. a request is sent to the server. if the client needs to know if the change is performed he has to check the state of this object. zSB Requesting {} -> {!r}N) ro rO r[ rT �rfc2217_send_subnegotiationrV �loggerr rb rU )r^ ro rH rH rM �setE s zTelnetSubnegotiation.setc C s$ | j tkrtd�| j���| j tkS )z{ Check if answer from server has been received. when server rejects the change, raise a ValueError. z%remote rejected value for option {!r})r[ rR rf rb rU rP rc rH rH rM �is_readyQ s z TelnetSubnegotiation.is_readyrE c C s: t |�}|�� s&t�d� | �� rq6qtd�| j���dS )z� Wait until the subnegotiation has been acknowledged or timeout. It can also throw a value error when the answer from the server does not match the value sent. 皙�����?z%timeout while waiting for option {!r}N)r �expired�time�sleeprt r rb rU )r^ �timeoutZ timeout_timerrH rH rM �wait\ s zTelnetSubnegotiation.waitc C sN | j |dt| j �� kr t| _nt| _| jjrJ| jj�d�| j || j�� dS )z� Check an incoming subnegotiation block. The parameter already has cut off the header like sub option number and com port option value. NzSB Answer {} -> {!r} -> {}) ro �lenrP r[ rR rT rr r rb rU )r^ � suboptionrH rH rM � check_answerj s z!TelnetSubnegotiation.check_answer)N)rE ) rj rk rl rm r_ rd rs rt �propertyr\ rz r} rH rH rH rM rn 1 s rn c s e Zd ZdZdZ� fdd�Zdd� Zdd� Zd d � Zd d � Z e d d� �Z d=dd�Z dd� Z dd� Zdd� Zdd� Zdd� Zd d � Ze d d � �Ze d d!� �Ze d"d#� �Ze d$d%� �Zd&d'� Zd(d)� Zd*d+� Zd,d-� Zd.d/� Zd0d1� Z d>d3d4�Z d5d6� Z d7d8� Z d9d:� Z d;d<� Z!� Z"S )?�Serialz<Serial port implementation for RFC 2217 remote serial ports.)�2 �K �n � � �� i, iX i� i i` i� i�% i K i � i � � � c st d | _ d | _d| _d | _td�| _d| _d | _d | _d| _ d| _ d| _ d | _ d | _ d | _d | _tt| �j||� d S )Nr ���FrE )�_thread�_socket� _linestate� _modemstater �_modemstate_timeout�_remote_suspend_flow� _write_lockrr �_ignore_set_control_answer�_poll_modem_state�_network_timeout�_telnet_options�_rfc2217_port_settings�_rfc2217_options� _read_buffer�superr r_ )r^ �args�kwargs�� __class__rH rM r_ ~ s zSerial.__init__c C s d| _ d| _d| _d| _| jdkr*td��| jr8td��z0tj| � | j �dd�| _ | j � tj tjd� W n: tk r� } z d| _ td �| j |���W 5 d}~X Y nX t�� | _t�� | _t| d tttttt �t| d t ttttt �g}t| d t ttttt �t| d t ttttt �t| dt ttttt �t| dtttttt �t| dt ttttt �g| | _!t"| dt#t$�t"| dt%t&�t"| dt't(�t"| dt)t*�d�| _+t"| dt,t-�t"| dt.t/�d�| _0| j0�1| j+� d| _2d| _3t4d�| _5d| _6d| _tj7| j8d �| _9| j9�:d� | j9�;d �| j�� | j9�<� z�| j!D ]"}|j=t k�r | �>|j?|j@� �q t4| j�}|�A� �s�tB�Cd � tDd d � |D ��tDd!d � |D ��k�rJ�q��qJtd"�|���| j �r�| j �Ed#�| j!�� | �F� | jG�s�| �H� | jI�s�| �J� | �K� | �L� W n | �M� � Y nX dS )$zx Open port with current settings. This may throw a SerialException if the port cannot be opened. NFrE z.Port must be configured before it can be used.zPort is already open.rF )ry rD zCould not open port {}: {}� we-BINARY� we-RFC2217�ECHO�we-SGA�they-SGA� they-BINARY� they-RFC2217�baudrate�datasize�parity�stopsize)r� r� r� r� �purge�control)r� r� r r� T)�targetz&pySerial RFC 2217 reader thread for {}ru c s s | ] }|j V qd S rG �r\ �rJ r` rH rH rM rN � s z Serial.open.<locals>.<genexpr>c s s | ]}|j tkV qd S rG )r[ rQ r� rH rH rM rN � s z;Remote does not seem to support RFC2217 or BINARY mode {!r}zNegotiated options: {})Nrr r� r� r� Z_portr �is_open�socketZcreate_connection�from_urlZportstrr� Z setsockoptZ IPPROTO_TCPZ TCP_NODELAY� Exceptionrb �Queuer� � threadingZLockr� rS �BINARY�WILL�WONT�DO�DONTrQ �COM_PORT_OPTIONrO r� �SGAr� rn � SET_BAUDRATE�SERVER_SET_BAUDRATE� SET_DATASIZE�SERVER_SET_DATASIZE� SET_PARITY�SERVER_SET_PARITY� SET_STOPSIZE�SERVER_SET_STOPSIZEr� � PURGE_DATA�SERVER_PURGE_DATA� SET_CONTROL�SERVER_SET_CONTROLr� �updater� r� r r� r� ZThread�_telnet_read_loopr� Z setDaemonZsetName�startr[ re rW rV rv rw rx �sumr �_reconfigure_portZ_dsrdtr�_update_dtr_state�_rtscts�_update_rts_state�reset_input_buffer�reset_output_buffer�close)r^ �msgZmandadory_optionsrV ry rH rH rM �open� s� $ ��� � � &� z Serial.openc C s� | j dkrtd��| jdk r$td��d| j k r:dk sLn td�| j���| jd �t � d| j�� | jd �t � d | j �� | jd �t � d t | j �� | jd �t � d t| j �� | j�� }| jr�| j�d �|�� t| j�}|�� �s t�d� tdd� |D ��t|�kr�q*q�td�|���| j�rD| j�d�|�� | j�r^| j �r^td��n2| j�rr| � t � n | j �r�| � t � n | � t � dS )z,Set communication parameters on opened port.Nz Can only operate on open portsz(write_timeout is currently not supportedr l zinvalid baudrate: {!r}r� � !Ir� � !Br� r� zNegotiating settings: {}ru c s s | ] }|j V qd S rG r� r� rH rH rM rN s z+Serial._reconfigure_port.<locals>.<genexpr>z7Remote does not accept parameter change (RFC2217): {!r}zNegotiated settings: {}z-xonxoff and rtscts together are not supported)!r� r Z_write_timeout�NotImplementedErrorZ _baudraterf rb r� rs �struct�packZ _bytesize�RFC2217_PARITY_MAPZ_parity�RFC2217_STOPBIT_MAPZ _stopbits�valuesrr r r r� rv rw rx r� r{ r r� Z_xonxoff�rfc2217_set_control� SET_CONTROL_USE_HW_FLOW_CONTROL� SET_CONTROL_USE_SW_FLOW_CONTROL� SET_CONTROL_USE_NO_FLOW_CONTROL)r^ �itemsry rH rH rM r� � s8 zSerial._reconfigure_portc C sb d| _ | jr6z | j�tj� | j�� W n Y nX | jrX| j�d� d| _t� d� d| _dS )z Close portF� N�333333�?) r� r� Zshutdownr� Z SHUT_RDWRr� r� �joinrw rx rc rH rH rM r� s z Serial.closec C s( t �|�}|jdkr$td�|j���z�t �|jd��� D ]�\}}|dkr~t� � t� d�| _ | j � t |d � | j �d� q8|dkr�d| _q8|d kr�d| _q8|d kr�t|d �| _q8td �|���q8d|j kr�d k s�n td ��W n2 tk �r } ztd�|���W 5 d}~X Y nX |j|jfS )zu extract host and port from an URL string, other settings are extracted an stored in instance Zrfc2217zqexpected a string in the form "rfc2217://<host>:<port>[?option[&option...]]": not starting with rfc2217:// ({!r})T�loggingzpySerial.rfc2217r zenabled loggingZign_set_controlZ poll_modemry zunknown option: {!r}i zport not in range 0...65535zPexpected a string in the form "rfc2217://<host>:<port>[?option[&option...]]": {}N)�urlparseZurlsplitZschemer rb Zparse_qsZqueryr� r� Z basicConfigZ getLoggerrr ZsetLevel� LOGGER_LEVELSr r� r� �floatr� rf ZportZhostname)r^ Zurl�partsrV r� �erH rH rM r� . s< �� ��zSerial.from_urlc C s | j s t�| j�� S )z9Return the number of bytes currently in the input buffer.)r� r r� �qsizerc rH rH rM � in_waitingS s zSerial.in_waitingrD c C s~ | j s t�t� }zNt| j�}t|�|k r\| jdkr:td��|| j� d|� � �7 }|� � r q\q W n t j k rt Y nX t|�S )z� Read size bytes from the serial port. If a timeout is set it may return less characters as requested. With no timeout it will block until the requested number of bytes is read. Nz&connection failed (reader thread died)T)r� r � bytearrayr Z_timeoutr{ r� r r� �getZ time_leftrv r� ZEmpty�bytes)r^ �size�datary rH rH rM �readZ s z Serial.readc C st | j s t�| j�V z | j�t|��tt�� W n2 t j k r` } zt d� |���W 5 d}~X Y nX W 5 Q R X t |�S )z� Output the given byte string over the serial port. Can block if the connection is blocked. May raise SerialException if the connection is closed. z$connection failed (socket error): {}N)r� r r� r� �sendallr �replace�IAC� IAC_DOUBLEDr� r r rb r{ )r^ r� r� rH rH rM �writeo s *z Serial.writec C s0 | j s t�| �t� | j�� r,| j�d� qdS )z9Clear input buffer, discarding all that is in the buffer.FN)r� r �rfc2217_send_purge�PURGE_RECEIVE_BUFFERr� r� r� rc rH rH rM r� s zSerial.reset_input_bufferc C s | j s t�| �t� dS )zs Clear output buffer, aborting the current output and discarding all that is in the buffer. N)r� r r� �PURGE_TRANSMIT_BUFFERrc rH rH rM r� � s zSerial.reset_output_bufferc C sL | j s t�| jr,| j�d�| jr$dnd�� | jr>| �t� n | �t� dS )z[ Set break: Controls TXD. When active, to transmitting is possible. zset BREAK to {}r\ �inactiveN) r� r rr r rb Z _break_stater� �SET_CONTROL_BREAK_ON�SET_CONTROL_BREAK_OFFrc rH rH rM �_update_break_state� s zSerial._update_break_statec C sL | j s t�| jr,| j�d�| jr$dnd�� | jr>| �t� n | �t� dS )z*Set terminal status line: Request To Send.z set RTS to {}r\ r� N) r� r rr r rb Z _rts_stater� �SET_CONTROL_RTS_ON�SET_CONTROL_RTS_OFFrc rH rH rM r� � s zSerial._update_rts_statec C sL | j s t�| jr,| j�d�| jr$dnd�� | jr>| �t� n | �t� dS )z.Set terminal status line: Data Terminal Ready.z set DTR to {}r\ r� N) r� r rr r rb Z _dtr_stater� �SET_CONTROL_DTR_ON�SET_CONTROL_DTR_OFFrc rH rH rM r� � s zSerial._update_dtr_statec C s | j s t�t| �� t@ �S )z)Read terminal status line: Clear To Send.)r� r �bool�get_modem_state�MODEMSTATE_MASK_CTSrc rH rH rM �cts� s z Serial.ctsc C s | j s t�t| �� t@ �S )z*Read terminal status line: Data Set Ready.)r� r r� r �MODEMSTATE_MASK_DSRrc rH rH rM �dsr� s z Serial.dsrc C s | j s t�t| �� t@ �S )z*Read terminal status line: Ring Indicator.)r� r r� r �MODEMSTATE_MASK_RIrc rH rH rM �ri� s z Serial.ric C s | j s t�t| �� t@ �S )z*Read terminal status line: Carrier Detect.)r� r r� r �MODEMSTATE_MASK_CDrc rH rH rM �cd� s z Serial.cdc C s� t }d}�z~| j�r�z| j�d�}W n^ tjk r> Y q Y nF tj k r� } z&| jrh| j�d� |�� W Y ��q�W 5 d}~X Y nX |s��q�t |�D ]�}|t kr�|t kr�t }n |dk r�||7 }n | j�|� q�|t k�rj|t k�r|dk r�|t 7 }n | j�t � t }nb|tk�r t� }t }nL|tk�r>| �t|�� d}t }n*|ttttfk�rZ|}t}n| �|� t }q�|tkr�| �||� t }q�q W 5 d| _| j�r�| j�d� X dS )zRead loop for the socket.Nzread thread terminatedi z!socket error in reader thread: {}) �M_NORMALr� rr r r� r� Zrecvr� ry r rb r r� � M_IAC_SEENr� Zput�SBr� �SE� _telnet_process_subnegotiationr� r� r� r� r� � M_NEGOTIATE�_telnet_process_command�_telnet_negotiate_option)r^ �moder| r� r� �byte�telnet_commandrH rH rM r� � sZ zSerial._telnet_read_loopc C s | j r| j �d�|�� dS �z1Process commands other than DO, DONT, WILL, WONT.z ignoring Telnet command: {!r}N�rr r rb rg rH rH rM r s z Serial._telnet_process_commandc C sp d}| j D ] }|j|kr |�|� d}q |sl|tks<|tkrl| �|tkrLtnt|� | jrl| j� d� |�� dS �z&Process incoming DO, DONT, WILL, WONT.FTz rejected Telnet option: {!r}N� r� rV ri r� r� re r� r� rr r rb �r^ rh rV Zknown�itemrH rH rM r s z Serial._telnet_negotiate_optionc C sZ |dd� t k�r<|dd� tkr\t|�dkr\t|dd� �| _| jrZ| j�d�| j�� n�|dd� tkr�t|�dkr�t|dd� �| _ | jr�| j�d�| j �� | j � d� n�|dd� t kr�d| _ np|dd� tkr�d | _ nX| j�� D ]2}|j|dd� kr�|�t|dd � �� �qVq�| j�rV| j�d �|�� n| j�rV| j�d �|�� d S ) �;Process subnegotiation, the data between IAC SB and IAC SE.r rD rC rE zNOTIFY_LINESTATE: {}�NOTIFY_MODEMSTATE: {}r� TFNz ignoring COM_PORT_OPTION: {!r}z ignoring subnegotiation: {!r})r� �SERVER_NOTIFY_LINESTATEr{ �ordr� rr r rb �SERVER_NOTIFY_MODEMSTATEr� r� Zrestart�FLOWCONTROL_SUSPENDr� �FLOWCONTROL_RESUMEr� r� rp r} r� r )r^ r| r rH rH rM r 2 s, z%Serial._telnet_process_subnegotiationc C s" | j � | j�|� W 5 Q R X dS )zGinternal socket write with no data escaping. used to send telnet stuff.N)r� r� r� )r^ r� rH rH rM �_internal_raw_writeR s zSerial._internal_raw_writec C s | � t| | � dS �zSend DO, DONT, WILL, WONT.N)r! r� �r^ �actionrV rH rH rM re W s zSerial.telnet_send_option� c C s2 |� tt�}| �tt t | | t t � dS )z%Subnegotiation of RFC2217 parameters.N)r� r� r� r! r r� r �r^ rV ro rH rH rM rq [ s z"Serial.rfc2217_send_subnegotiationc C s$ | j d }|�|� |�| j� dS )z~ Send purge request to the remote. (PURGE_RECEIVE_BUFFER / PURGE_TRANSMIT_BUFFER / PURGE_BOTH_BUFFERS) r� N)r� rs rz r� �r^ ro r rH rH rM r� ` s zSerial.rfc2217_send_purgec C s6 | j d }|�|� | jr&t�d� n |�| j� dS )z)transmit change of control line to remoter� g�������?N)r� rs r� rw rx rz r� r' rH rH rM r� i s zSerial.rfc2217_set_controlc C s dS )z` check if server is ready to receive data. block for some time when not. NrH rc rH rH rM �rfc2217_flow_server_readyu s z Serial.rfc2217_flow_server_readyc C s� | j rh| j�� rh| jr"| j�d� | �t� t| j�}|�� sVt � d� | j�� s6qhq6| jrh| j� d� | j dk r�| jr�| j�d� | j S t d��dS )z� get last modem state (cached value. If value is "old", request a new one. This cache helps that we don't issue to many requests when e.g. all status lines, one after the other is queried by the user (CTS, DSR etc.) zpolling modem stateru zpoll for modem state failedNzusing cached modem statez!remote sends no NOTIFY_MODEMSTATE)r� r� rv rr r rq �NOTIFY_MODEMSTATEr r� rw rx r r� r )r^ ry rH rH rM r } s zSerial.get_modem_state)rD )r% )#rj rk rl rm Z BAUDRATESr_ r� r� r� r� r~ r� r� r� r� r� r� r� r� r r r r r� r r r r! re rq r� r� r( r � __classcell__rH rH r� rM r x sF a,% C r c @ sf e Zd ZdZddd�Zdd� Zdd� Zdd d �Zdd d�Zdd� Z dd� Z dd� Z dd� Z dd� Z dS ) � PortManagerz� This class manages the state of Telnet and RFC 2217. It needs a serial instance and a connection to work with. Connection is expected to implement a (thread safe) write function, that writes the string to the network. Nc C s || _ || _|| _d| _t| _d | _d | _d| _d | _ d| _ t | dt t tttt�t | dtt tttt�t | dtttt tt�t | dtt tttt�t | dtttt tt�t | d tt tttt| j� t | d tttt tt| j� g| _| jr�| j�d � | jD ] }|jtkr�| �|j|j � q�d S ) NF� r r� r� r� r� r� r� r� z*requesting initial Telnet/RFC 2217 options) �serialrT rr �_client_is_rfc2217r r r| r �modemstate_mask�last_modemstate� linstate_maskrS r� r� r� r� r� rO r� rQ r� r� � _client_okr� r r[ re rW rV )r^ Z serial_portrT rr rV rH rH rM r_ � s. � zPortManager.__init__c C s( d| _ | jr| j�d� | jdd� dS )a callback of telnet option. It gets called when option is activated. This one here is used to detect when the client agrees on RFC 2217. A flag is set so that other functions like check_modem_lines know if the client is OK. Tzclient accepts RFC 2217��force_notificationN)r. rr r �check_modem_linesrc rH rH rM r2 � s zPortManager._client_okc C s | j �t| | � dS r" )rT r� r� r# rH rH rM re � s z PortManager.telnet_send_optionr% c C s4 |� tt�}| j�tt t | | t t � dS )z&Subnegotiation of RFC 2217 parameters.N)r� r� r� rT r� r r� r r& rH rH rM rq � s z'PortManager.rfc2217_send_subnegotiationFc C s� | j jo t| j jotB | j jo tB | j jo,tB }|| j p:dA }|t@ rN|t O }|t@ r^|t O }|t@ rn|t O }|t@ r~|t O }|| j ks�|r�| jr�|| j@ s�|r�| �tt|| j@ g�� | jr�| j�d�|�� |d@ | _ dS )z� read control lines from serial port and compare the last value sent to remote. send updates on changes. r r �� N)r- r r r r r r r r r0 �MODEMSTATE_MASK_CTS_CHANGE�MODEMSTATE_MASK_DSR_CHANGE�MODEMSTATE_MASK_RI_CHANGE�MODEMSTATE_MASK_CD_CHANGEr. r/ rq r r rr r rb )r^ r4 Z modemstateZdeltasrH rH rM r5 � s4 � � ���z PortManager.check_modem_linesc c s. t |�D ] }|tkr"tV tV q|V qdS )z� This generator function is for the user. All outgoing data has to be properly escaped, so that no IAC character in the data stream messes up the Telnet state machine in the server. socket.sendall(escape(data)) N)r r� �r^ r� r rH rH rM �escape s zPortManager.escapec c s t |�D �]}| jtkrJ|tkr(t| _n | jdk rB| j|7 _n|V q| jtkr�|tkr�| jdk rv| j|7 _n|V t| _nl|tkr�t� | _t| _nT|tkr�| � t | j�� d| _t| _n.|t t t tfkr�|| _t| _n| �|� t| _q| jtkr| �| j|� t| _qdS )a� Handle a bunch of incoming bytes. This is a generator. It will yield all characters not of interest for Telnet/RFC 2217. The idea is that the reader thread pushes data from the socket through this filter: for byte in filter(socket.recv(1024)): # do things like CR/LF conversion/whatever # and write data to the serial port serial.write(byte) (socket error handling code left as exercise for the reader) N)r r r r� r r| r r� r r r� r� r� r� r� r r r r r; rH rH rM �filter# s8 zPortManager.filterc C s | j r| j �d�|�� dS r r rg rH rH rM r ^ s z#PortManager._telnet_process_commandc C sp d}| j D ] }|j|kr |�|� d}q |sl|tks<|tkrl| �|tkrLtnt|� | jrl| j� d� |�� dS r r r rH rH rM r d s z$PortManager._telnet_negotiate_optionc C s |dd� t k�r�| jr*| j�d�|�� |dd� tkr�| jj}z*t�d|dd� �\}|dkrj|| j_W nB t k r� } z$| jr�| j� d�|�� || j_W 5 d}~X Y n(X | jr�| j� d �|r�d nd | jj�� | � t t�d| jj�� � q|dd� tk�r�| jj}z,t�d |dd � �\}|dk�r6|| j_W nF t k �r~ } z&| j�rf| j� d�|�� || j_W 5 d}~X Y n,X | j�r�| j� d�|�r�d nd | jj�� | � tt�d | jj�� � q|dd� tk�r�| jj}z2t�d |dd � �d }|dk�rt| | j_W nF t k �rX } z&| j�r@| j� d�|�� || j_W 5 d}~X Y n,X | j�r�| j� d�|�rvd nd | jj�� | � tt�d t| jj �� � q|dd� tk�r�| jj}z2t�d |dd � �d }|dk�r�t| | j_W nF t k �r6 } z&| j�r | j� d�|�� || j_W 5 d}~X Y n,X | j�rb| j� d�|�rTd nd | jj�� | � tt�d t| jj �� � q|dd� t k�r�|dd � t k�r�| jj �r�| � t t � n$| jj!�r�| � t t"� n | � t t#� �q�|dd � t#k�r,d| j_ d| j_!| j�r | j� d� | � t t#� �q�|dd � t k�rjd| j_ | j�rZ| j� d� | � t t � �q�|dd � t"k�r�d| j_!| j�r�| j� d� | � t t"� �q�|dd � t$k�r�| j�r�| j�%d� �q�|dd � t&k�rd| j_'| j�r | j� d� | � t t&� �q�|dd � t(k�rNd| j_'| j�r>| j� d� | � t t(� �q�|dd � t)k�rx| j�r�| j�%d � �q�|dd � t*k�r�d| j_+| j�r�| j� d � | � t t*� n�|dd � t,k�r�d| j_+| j�r�| j� d � | � t t,� n�|dd � t-k�r| j�r�| j�%d � nv|dd � t.k�rTd| j_/| j�rF| j� d � | � t t.� n:|dd � t0k�r�d| j_/| j�r�| j� d!� | � t t0� � q|dd� t1k�r�| � t2t3dg�� � q|dd� t4k�r�| j�r�| j� d"� | j5dd#� � q|dd� t6k�r | j�r| j� d$� d| _7� q|dd� t8k�rP| j�rF| j� d%� d| _7� q|dd� t9k�r�t:|dd � �| _;| j�r�| j� d&�| j;�� � q|dd� t<k�r�t:|dd � �| _=| j�r�| j� d'�| j=�� � q|dd� t>k�r�|dd � t?k�r(| j�@� | j�r| j� d(� | � tAt?� n�|dd � tBk�rf| j�C� | j�rX| j� d)� | � tAtB� nn|dd � tDk�r�| j�@� | j�C� | j�r�| j� d*� | � tAtD� n&| j�r�| j� d+�tE|dd� ��� n&| j� r| j� d,�tE|dd� ��� n| j� r| j�%d-�|�� dS ).r r rD z received COM_PORT_OPTION: {!r}rC r� � zfailed to set baud rate: {}Nz{} baud rate: {}rs r� r� rE zfailed to set data size: {}z{} data size: {}zfailed to set parity: {}z {} parity: {}zfailed to set stop bits: {}z{} stop bits: {}Fz changed flow control to NoneTz changed flow control to XON/XOFFz changed flow control to RTS/CTSz'requested break state - not implementedzchanged BREAK to activezchanged BREAK to inactivez%requested DTR state - not implementedzchanged DTR to activezchanged DTR to inactivez%requested RTS state - not implementedzchanged RTS to activezchanged RTS to inactivezrequest for modem stater3 ZsuspendZresumezline state mask: 0x{:02x}zmodem state mask: 0x{:02x}zpurge inz purge outz purge bothzundefined PURGE_DATA: {!r}z undefined COM_PORT_OPTION: {!r}z unknown subnegotiation: {!r})Fr� rr r rb r� r- r� r� Zunpackrf r r rq r� r� r� Zbytesizer� r� r� �RFC2217_REVERSE_PARITY_MAPr� r� r� �stopbits�RFC2217_REVERSE_STOPBIT_MAPr� r� r� � SET_CONTROL_REQ_FLOW_SETTINGZxonxoffr� r� Zrtsctsr� r� �SET_CONTROL_REQ_BREAK_STATEr r� Zbreak_conditionr� �SET_CONTROL_REQ_DTRr� Zdtrr� �SET_CONTROL_REQ_RTSr� Zrtsr� �NOTIFY_LINESTATEr r r) r5 r r� r �SET_LINESTATE_MASKr r1 �SET_MODEMSTATE_MASKr/ r� r� r� r� r� r� �PURGE_BOTH_BUFFERS�list)r^ r| Zbackupr� r� r� r� r@ rH rH rM r w s\ " "� "� � z*PortManager._telnet_process_subnegotiation)N)r% )F)rj rk rl rm r_ r2 re rq r5 r< r= r r r rH rH rH rM r+ � s # $;r+ �__main__zrfc2217://localhost:7000r� z{} z write... s hello z read: {} )�r� r� r� r� rw r� � ImportErrorZ urllib.parse�parser� Zqueuer- Zserial.serialutilr r r r r r �DEBUG�INFOZWARNINGZERRORr� r ZNOPZDMZBRKZIPZAOZAYTZECZELZGAr r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� rF r) r r rG rH r� r� r� r� r� r� r r ZSERVER_FLOWCONTROL_SUSPENDZSERVER_FLOWCONTROL_RESUMEZSERVER_SET_LINESTATE_MASKZSERVER_SET_MODEMSTATE_MASKr� ZRFC2217_ANSWER_MAPrB r� r� r� rC r� r� rD r� r� rE r� r� Z SET_CONTROL_REQ_FLOW_SETTING_INZ"SET_CONTROL_USE_NO_FLOW_CONTROL_INZ!SET_CONTROL_USE_SW_FLOW_CONTOL_INZ!SET_CONTROL_USE_HW_FLOW_CONTOL_INZ SET_CONTROL_USE_DCD_FLOW_CONTROLZ SET_CONTROL_USE_DTR_FLOW_CONTROLZ SET_CONTROL_USE_DSR_FLOW_CONTROLZLINESTATE_MASK_TIMEOUTZ LINESTATE_MASK_SHIFTREG_EMPTYZ LINESTATE_MASK_TRANSREG_EMPTYZLINESTATE_MASK_BREAK_DETECTZ LINESTATE_MASK_FRAMING_ERRORZLINESTATE_MASK_PARTIY_ERRORZ LINESTATE_MASK_OVERRUN_ERRORZLINESTATE_MASK_DATA_READYr r r r r: r9 r8 r7 r� r� rI Z PARITY_NONEZ PARITY_ODDZ PARITY_EVENZ PARITY_MARKZ PARITY_SPACEr� �dictr� r? Z STOPBITS_ONEZSTOPBITS_ONE_POINT_FIVEZ STOPBITS_TWOr� rA r r r rO rP rQ rR �objectrS rn r r+ rj �sys�s�stdoutr� rb �flushr� r� rH rH rH rM �<module>= s^ � � � �FG 0
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