o
    «¦^_4é  ć                   @   s~  d dl mZ d dlZd dlZd dlZd dlZd dlZzd dlZW n ey/   d dl	m
Z Y nw zd dlZW n eyC   d dlZY nw d dlZd dlmZmZmZmZmZmZ ejejejejdZdZdZdZdZd	Zd
ZdZ dZ!dZ"dZ#dZ$dZ%dZ&dZ'dZ(dZ)dZ*dZ+dZ,dZ-dZ.dZ/dZ0dZ1dZ2dZ3dZ4dZ5dZ6d Z7d!Z8d"Z9d#Z:d$Z;d%Z<d&Z=d'Z>d(Z?d)Z@d*ZAd+ZBd,ZCd-ZDd.ZEd/ZFe/e;e0e<e1e=e2e>e3e?e4e@e5eAe6eBe7eCe8eDe9eEe:eFiZGdZHdZIdZJdZKdZLdZMdZNdZOdZPd ZQd!ZRd"ZSd#ZTd0ZUd1ZVd2ZWd3ZXd4ZYd5ZZd6Z[d7Z\d8Z]d9Z^d:Z_d;Z`d<Zad=Zbd>Zcd7Zdd8Zed9Zfd:Zgd;Zhd<Zid=Zjd>ZkdZldZmdZnejod>ejpd=ejqd?ejrd<ejsd@iZteudAdB et v” D Zwejxd>ejyd?ejzd=iZ{eudCdB e{ v” D Z|d Z}d>Z~d=ZdDZdEZdFZdGZG dHdI dIeZG dJdK dKeZG dLdM dMeZG dNdO dOeZedPkr½d dlZedQdRZej dS e”” ej dT” e dU” e ”  ej dV e d@””” e ”  dS dS )Wé    )Śabsolute_importN)Ś
SerialBaseŚSerialExceptionŚto_bytesŚ	iterbytesŚPortNotOpenErrorŚTimeout)ŚdebugŚinfoŚwarningŚerroró   šó   ńó   ņó   óó   ōó   õó   öó   ÷ó   ųó   łó   śó   ūó   üó   żó   žó   ’s   ’’ó    ó   ó   ó   ,ó   ó   ó   ó   ó   ó   ó   	ó   
ó   ó   ó   eó   fó   gó   hó   ió   jó   kó   ló   mó   nó   oó   pó   ó   ó   ó   ó   ó   ó   é   é@   é    é   é   é   é   é   é   é   c                 c   ó    | ]	\}}||fV  qd S ©N© ©Ś.0ŚkŚvrJ   rJ   ś0/usr/lib/python3/dist-packages/serial/rfc2217.pyŚ	<genexpr>Ų   ó    rP   c                 c   rH   rI   rJ   rK   rJ   rJ   rO   rP   ß   rQ   Ś	REQUESTEDŚACTIVEŚINACTIVEŚREALLY_INACTIVEc                   @   s,   e Zd ZdZ	d	ddZdd Zdd ZdS )
ŚTelnetOptionz@Manage a single telnet option, keeps track of DO/DONT WILL/WONT.Nc
           
      C   s@   || _ || _|| _|| _|| _|| _|| _|| _d| _|	| _	dS )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)
Ś
connectionŚnameŚoptionŚsend_yesŚsend_noŚack_yesŚack_noŚstateŚactiveŚactivation_callback)
ŚselfrW   rX   rY   rZ   r[   r\   r]   Zinitial_stater`   rJ   rJ   rO   Ś__init__š   s   
zTelnetOption.__init__c                 C   ó   dj | dS )zString for debug outputsz{o.name}:{o.active}({o.state}))Śo©Śformat©ra   rJ   rJ   rO   Ś__repr__  ó   zTelnetOption.__repr__c                 C   s6  || j kr\| jtu rt| _d| _| jdur|  ”  dS dS | jtu r$dS | jtu rEt| _| j | j	| j
” d| _| jdurC|  ”  dS dS | jtu rU| j | j| j
” dS td | ”|| jkr| jtu rnt| _d| _dS | jtu rt| _| j | j| j
” d| _dS | jtu rdS | jtu rdS td | ”dS )zo        A DO/DONT/WILL/WONT was received for this option, update state and
        answer when needed.
        TNzoption in illegal state {!r}F)r\   r^   rR   rS   r_   r`   rT   rW   Śtelnet_send_optionrZ   rY   rU   r[   Ś
ValueErrorrf   r]   ©ra   ŚcommandrJ   rJ   rO   Śprocess_incoming  sB   


’


’







ózTelnetOption.process_incomingrI   )Ś__name__Ś
__module__Ś__qualname__Ś__doc__rb   rh   rn   rJ   rJ   rJ   rO   rV   ķ   s    
’rV   c                   @   sL   e Zd ZdZdddZdd Zdd Zd	d
 ZeeZ	dddZ
dd ZdS )ŚTelnetSubnegotiationz    A object to handle subnegotiation of options. In this case actually
    sub-sub options for RFC 2217. It is used to track com port options.
    Nc                 C   s4   |d u r|}|| _ || _|| _d | _|| _t| _d S rI   )rW   rX   rY   ŚvalueŚ
ack_optionrT   r^   )ra   rW   rX   rY   ru   rJ   rJ   rO   rb   9  s   
zTelnetSubnegotiation.__init__c                 C   rc   )zString for debug outputs.z{sn.name}:{sn.state})Zsnre   rg   rJ   rJ   rO   rh   C  ri   zTelnetSubnegotiation.__repr__c                 C   sH   || _ t| _| j | j| j ” | jjr"| jj d | j	| j ”” dS dS )zĮ        Request a change of the value. a request is sent to the server. if
        the client needs to know if the change is performed he has to check the
        state of this object.
        zSB Requesting {} -> {!r}N)
rt   rR   r^   rW   Śrfc2217_send_subnegotiationrY   Śloggerr	   rf   rX   )ra   rt   rJ   rJ   rO   ŚsetG  s   ’zTelnetSubnegotiation.setc                 C   s$   | j tkrtd | j”| j tkS )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^   rU   rk   rf   rX   rS   rg   rJ   rJ   rO   Śis_readyS  s   

zTelnetSubnegotiation.is_readyrF   c                 C   s>   t |}| ” st d” |  ” rdS | ” rtd | j”)zæ        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.
        ē©?z%timeout while waiting for option {!r}N)r   ŚexpiredŚtimeŚsleepry   r   rf   rX   )ra   ŚtimeoutZtimeout_timerrJ   rJ   rO   Śwait^  s   
żzTelnetSubnegotiation.waitc                 C   sR   | j |dt| j  krt| _nt| _| jjr'| jj d | j	|| j”” dS dS )z        Check an incoming subnegotiation block. The parameter already has
        cut off the header like sub option number and com port option value.
        NzSB Answer {} -> {!r} -> {})
rt   ŚlenrS   r^   rU   rW   rw   r	   rf   rX   )ra   Ś	suboptionrJ   rJ   rO   Ścheck_answerl  s    ’z!TelnetSubnegotiation.check_answerrI   )rF   )ro   rp   rq   rr   rb   rh   rx   ry   Śpropertyr_   r   r   rJ   rJ   rJ   rO   rs   3  s    

	
rs   c                       s  e Zd ZdZdZ fddZdd Zdd Zd	d
 Zdd Z	e
dd Zd=ddZdd Zdd Zdd Zdd Zdd Zdd Ze
dd Ze
d d! Ze
d"d# Ze
d$d% Zd&d' Zd(d) Zd*d+ Zd,d- Zd.d/ Zd0d1 Zd>d3d4Zd5d6 Zd7d8 Zd9d: Z d;d< Z!  Z"S )?ŚSerialz<Serial port implementation for RFC 2217 remote serial ports.)é2   éK   én   é   é   éČ   i,  iX  i°  i  i`	  iĄ  i%  i K  i   i į  é Ā c                    sx   d | _ d | _d| _d | _td| _d| _d | _d | _d| _	d| _
d| _d | _d | _d | _d | _tt| j|i |¤ d S )Nr   é’’’’FrF   )Ś_threadŚ_socketŚ
_linestateŚ_modemstater   Ś_modemstate_timeoutŚ_remote_suspend_flowŚ_write_lockrw   Ś_ignore_set_control_answerŚ_poll_modem_stateŚ_network_timeoutŚ_telnet_optionsŚ_rfc2217_port_settingsŚ_rfc2217_optionsŚ_read_bufferŚsuperr   rb   )ra   ŚargsŚkwargs©Ś	__class__rJ   rO   rb     s    
zSerial.__init__c                 C   sž  d| _ d| _d| _d| _| jdu rtd| jrtdztj|  	| j
”dd| _| j tjtjd” W n tyL } zd| _td	 | j
|”d}~ww t ” | _t ” | _t| d
ttttttt| dttttttg}t| dttttttt| dt tttttt| dt tttttt| dttttttt| dttttttg| | _!t"| dt#t$t"| dt%t&t"| dt't(t"| dt)t*d| _+t"| dt,t-t"| dt.t/d| _0| j0 1| j+” d| _2d| _3t4d| _5d| _6d| _tj7| j8d| _9| j9 :d” | j9 ;d | j”” | j9 <”  zq| j!D ]}|j=tu r|  >|j?|j@” q	t4| j}| A” sCtB Cd” tDdd  |D tDd!d  |D kr>n| A” r%td" |”| j rX| j  Ed# | j!”” |  F”  | jGsd|  H”  | jIsl|  J”  |  K”  |  L”  W dS    |  M”   )$zx        Open port with current settings. This may throw a SerialException
        if the port cannot be opened.
        NFrF   z.Port must be configured before it can be used.zPort is already open.rG   )r~   rE   zCould not open port {}: {}ś	we-BINARYś
we-RFC2217ŚECHOśwe-SGAśthey-SGAśthey-BINARYśthey-RFC2217ŚbaudrateŚdatasizeŚparityŚstopsize)r§   rØ   r©   rŖ   ŚpurgeŚcontrol)r«   r¬   r   r   T)Śtargetz&pySerial RFC 2217 reader thread for {}rz   c                 s   ó    | ]}|j V  qd S rI   ©r_   ©rL   rd   rJ   rJ   rO   rP   Ž  ó    zSerial.open.<locals>.<genexpr>c                 s   s    | ]}|j tkV  qd S rI   )r^   rT   r°   rJ   rJ   rO   rP   Ž  s    z;Remote does not seem to support RFC2217 or BINARY mode {!r}zNegotiated options: {})Nrw   r   r   r   Z_portr   Śis_openŚsocketZcreate_connectionŚfrom_urlZportstrr   Z
setsockoptZIPPROTO_TCPZTCP_NODELAYŚ	Exceptionrf   ŚQueuer   Ś	threadingZLockr   rV   ŚBINARYŚWILLŚWONTŚDOŚDONTrT   ŚCOM_PORT_OPTIONrR   r¢   ŚSGAr   rs   ŚSET_BAUDRATEŚSERVER_SET_BAUDRATEŚSET_DATASIZEŚSERVER_SET_DATASIZEŚ
SET_PARITYŚSERVER_SET_PARITYŚSET_STOPSIZEŚSERVER_SET_STOPSIZEr   Ś
PURGE_DATAŚSERVER_PURGE_DATAŚSET_CONTROLŚSERVER_SET_CONTROLr   Śupdater   r   r   r   r   ZThreadŚ_telnet_read_loopr   Z	setDaemonZsetNameŚstartr^   rj   rZ   rY   r{   r|   r}   Śsumr
   Ś_reconfigure_portZ_dsrdtrŚ_update_dtr_stateŚ_rtsctsŚ_update_rts_stateŚreset_input_bufferŚreset_output_bufferŚclose)ra   ŚmsgZmandadory_optionsrY   r~   rJ   rJ   rO   Śopen  s   
ž

žūś
ü	ž





&
ż’zSerial.openc                 C   s  | j du r	td| jdurtdd| j  k rdk s&n td | j”| jd  t	 
d| j”” | jd	  t	 
d
| j”” | jd  t	 
d
t| j ”” | jd  t	 
d
t| j ”” | j ” }| jro| j d |”” t| j}| ” st d” tdd |D t|krn| ” rxtd |”| jr¢| j d |”” | jr¬| jr¬td| jr¶|  t” dS | jrĄ|  t” dS |  t ” dS )z,Set communication parameters on opened port.NzCan only operate on open portsz(write_timeout is currently not supportedr   l        zinvalid baudrate: {!r}r§   ó   !IrØ   ó   !Br©   rŖ   zNegotiating settings: {}rz   c                 s   r®   rI   rÆ   r°   rJ   rJ   rO   rP     r±   z+Serial._reconfigure_port.<locals>.<genexpr>z7Remote does not accept parameter change (RFC2217): {!r}zNegotiated settings: {}z-xonxoff and rtscts together are not supported)!r   r   Z_write_timeoutŚNotImplementedErrorZ	_baudraterk   rf   r   rx   ŚstructŚpackZ	_bytesizeŚRFC2217_PARITY_MAPZ_parityŚRFC2217_STOPBIT_MAPZ	_stopbitsŚvaluesrw   r	   r   r   r{   r|   r}   rĪ   r   r
   rŃ   Z_xonxoffŚrfc2217_set_controlŚSET_CONTROL_USE_HW_FLOW_CONTROLŚSET_CONTROL_USE_SW_FLOW_CONTROLŚSET_CONTROL_USE_NO_FLOW_CONTROL)ra   Śitemsr~   rJ   rJ   rO   rĻ   ó  s:   




żzSerial._reconfigure_portc                 C   s^   d| _ | jrz| j tj” | j ”  W n   Y | jr*| j d” d| _t 	d” d| _dS )z
Close portFé   Nē333333Ó?)
r²   r   Zshutdownr³   Z	SHUT_RDWRrÕ   r   Śjoinr|   r}   rg   rJ   rJ   rO   rÕ     s   

zSerial.closec              
   C   s   t  |”}|jdkrtd |j”zdt  |jd” ” D ]E\}}|dkr?t 	”  t 
d”| _| j t|d  ” | j d” q|dkrGd| _q|d	krOd| _q|d
kr[t|d | _qtd |”d|j  krpdk sutd tdW n ty } ztd |”d}~ww |j|jfS )zu        extract host and port from an URL string, other settings are extracted
        an stored in instance
        Zrfc2217zqexpected a string in the form "rfc2217://<host>:<port>[?option[&option...]]": not starting with rfc2217:// ({!r})TŚloggingzpySerial.rfc2217r   zenabled loggingZign_set_controlZ
poll_modemr~   zunknown option: {!r}i   zport not in range 0...65535zPexpected a string in the form "rfc2217://<host>:<port>[?option[&option...]]": {}N)ŚurlparseZurlsplitZschemer   rf   Zparse_qsZqueryrä   rč   ZbasicConfigZ	getLoggerrw   ZsetLevelŚLOGGER_LEVELSr	   r   r   Śfloatr   rk   ZportZhostname)ra   ZurlŚpartsrY   rß   ŚerJ   rJ   rO   r“   0  sB   

ż’’ž’zSerial.from_urlc                 C   s   | j st | j ” S )z9Return the number of bytes currently in the input buffer.)r²   r   r   Śqsizerg   rJ   rJ   rO   Ś
in_waitingU  s   
zSerial.in_waitingrE   c                 C   sĄ   | j st t }zIt| j}t||k rI| jdu s| j ” s#td| j	 
d| ” ”}|du r5t|W S ||7 }| ” r>nt||k sW t|S W t|S W t|S  tjy_   Y t|S w )zŃ        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)r²   r   Ś	bytearrayr   Z_timeoutr   r   Zis_aliver   r   ŚgetZ	time_leftŚbytesr{   r¶   ZEmpty)ra   ŚsizeŚdatar~   ŚbufrJ   rJ   rO   Śread\  s0   

ųõżžžzSerial.readc                 C   s   | j st | j. z| j t| tt”” W n t	j
y, } ztd |”d}~ww W d   t|S 1 s:w   Y  t|S )z²        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)r²   r   r   r   Śsendallr   ŚreplaceŚIACŚIAC_DOUBLEDr³   r   r   rf   r   )ra   rō   rķ   rJ   rJ   rO   Śwritet  s   ’’
žūzSerial.writec                 C   s>   | j st |  t” | j ” r| j d” | j ” sdS dS )z9Clear input buffer, discarding all that is in the buffer.FN)r²   r   Śrfc2217_send_purgeŚPURGE_RECEIVE_BUFFERr   rī   rń   rg   rJ   rJ   rO   rÓ     s   

’zSerial.reset_input_bufferc                 C   s   | j st |  t” dS )zs        Clear output buffer, aborting the current output and
        discarding all that is in the buffer.
        N)r²   r   rü   ŚPURGE_TRANSMIT_BUFFERrg   rJ   rJ   rO   rŌ     s   zSerial.reset_output_bufferc                 C   óP   | j st | jr| j d | jrdnd”” | jr!|  t” dS |  t” dS )z[        Set break: Controls TXD. When active, to transmitting is
        possible.
        zset BREAK to {}r_   ŚinactiveN)	r²   r   rw   r
   rf   Z_break_staterą   ŚSET_CONTROL_BREAK_ONŚSET_CONTROL_BREAK_OFFrg   rJ   rJ   rO   Ś_update_break_state  s   zSerial._update_break_statec                 C   r’   )z*Set terminal status line: Request To Send.zset RTS to {}r_   r   N)	r²   r   rw   r
   rf   Z
_rts_staterą   ŚSET_CONTROL_RTS_ONŚSET_CONTROL_RTS_OFFrg   rJ   rJ   rO   rŅ   £  ó   zSerial._update_rts_statec                 C   r’   )z.Set terminal status line: Data Terminal Ready.zset DTR to {}r_   r   N)	r²   r   rw   r
   rf   Z
_dtr_staterą   ŚSET_CONTROL_DTR_ONŚSET_CONTROL_DTR_OFFrg   rJ   rJ   rO   rŠ   ®  r  zSerial._update_dtr_statec                 C   ó   | j st t|  ” t@ S )z)Read terminal status line: Clear To Send.)r²   r   ŚboolŚget_modem_stateŚMODEMSTATE_MASK_CTSrg   rJ   rJ   rO   Ścts¹  ó   z
Serial.ctsc                 C   r	  )z*Read terminal status line: Data Set Ready.)r²   r   r
  r  ŚMODEMSTATE_MASK_DSRrg   rJ   rJ   rO   ŚdsrĄ  r  z
Serial.dsrc                 C   r	  )z*Read terminal status line: Ring Indicator.)r²   r   r
  r  ŚMODEMSTATE_MASK_RIrg   rJ   rJ   rO   ŚriĒ  r  z	Serial.ric                 C   r	  )z*Read terminal status line: Carrier Detect.)r²   r   r
  r  ŚMODEMSTATE_MASK_CDrg   rJ   rJ   rO   ŚcdĪ  r  z	Serial.cdc              
   C   s¶  t }d}zĖ| jrĀz| j d”}W n. tjy   Y q tjy> } z| jr.| j d 	|”” | j
 d” W Y d}~nd}~ww |sH| j
 d” nzt|D ]r}|t kri|tkrYt}qL|durb||7 }qL| j
 |” qL|tkr²|tkr|durz|t7 }n| j
 t” t }qL|tkrt }t }qL|tkr|  t|” d}t }qL|ttttfv rŖ|}t}qL|  |” t }qL|tkr¾|  ||” t }qL| jsW | jrĪ| j d” dS dS | jrŚ| j d” w w )zRead loop for the socket.Ni   z!socket error in reader thread: {}zread thread terminated)ŚM_NORMALr²   r   Zrecvr³   r~   r   rw   r	   rf   r   Zputr   rł   Ś
M_IAC_SEENŚSBrš   ŚSEŚ_telnet_process_subnegotiationrņ   r»   r¼   r¹   rŗ   ŚM_NEGOTIATEŚ_telnet_process_commandŚ_telnet_negotiate_option)ra   Śmoder   rō   rķ   ŚbyteŚtelnet_commandrJ   rJ   rO   rĢ   Ś  sl   ū


Č:
’’zSerial._telnet_read_loopc                 C   ó    | j r| j  d |”” dS dS ©z1Process commands other than DO, DONT, WILL, WONT.zignoring Telnet command: {!r}N©rw   r   rf   rl   rJ   rJ   rO   r    ó   ’zSerial._telnet_process_commandc                 C   ó|   d}| j D ]}|j|kr| |” d}q|s8|tks|tkr:|  |tkr&tnt|” | jr<| j 	d 
|”” dS dS dS dS ©z&Process incoming DO, DONT, WILL, WONT.FTzrejected Telnet option: {!r}N©r   rY   rn   r¹   r»   rj   r¼   rŗ   rw   r   rf   ©ra   rm   rY   ZknownŚitemrJ   rJ   rO   r  $  ó   


śzSerial._telnet_negotiate_optionc                 C   sj  |dd t kr„|dd tkr0t|dkr0t|dd | _| jr.| j d | j”” d
S d
S |dd tkr\t|dkr\t|dd | _	| jrT| j d | j	”” | j
 d” d
S |dd tkrid| _d
S |dd tkrvd	| _d
S | j ” D ]}|j|dd kr| t|dd
 ”  d
S q{| jr£| j d |”” d
S d
S | jr³| j d |”” d
S d
S )ś;Process subnegotiation, the data between IAC SB and IAC SE.r   rE   rD   rF   zNOTIFY_LINESTATE: {}śNOTIFY_MODEMSTATE: {}rę   TFNzignoring COM_PORT_OPTION: {!r}zignoring subnegotiation: {!r})r½   ŚSERVER_NOTIFY_LINESTATEr   Śordr   rw   r
   rf   ŚSERVER_NOTIFY_MODEMSTATEr   r   ZrestartŚFLOWCONTROL_SUSPENDr   ŚFLOWCONTROL_RESUMEr   rß   ru   r   rņ   r   )ra   r   r(  rJ   rJ   rO   r  7  s4   ’

ż’’z%Serial._telnet_process_subnegotiationc                 C   s8   | j  | j |” W d   dS 1 sw   Y  dS )zGinternal socket write with no data escaping. used to send telnet stuff.N)r   r   r÷   )ra   rō   rJ   rJ   rO   Ś_internal_raw_writeW  s   "’zSerial._internal_raw_writec                 C   s   |   t| | ” dS ©zSend DO, DONT, WILL, WONT.N)r1  rł   ©ra   ŚactionrY   rJ   rJ   rO   rj   \  s   zSerial.telnet_send_optionó    c                 C   s2   |  tt”}|  tt t | | t t ” dS )z%Subnegotiation of RFC2217 parameters.N)rų   rł   rś   r1  r  r½   r  ©ra   rY   rt   rJ   rJ   rO   rv   `  s   &z"Serial.rfc2217_send_subnegotiationc                 C   s$   | j d }| |” | | j” dS )z~        Send purge request to the remote.
        (PURGE_RECEIVE_BUFFER / PURGE_TRANSMIT_BUFFER / PURGE_BOTH_BUFFERS)
        r«   N)r   rx   r   r   ©ra   rt   r(  rJ   rJ   rO   rü   e  s   

zSerial.rfc2217_send_purgec                 C   s8   | j d }| |” | jrt d” dS | | j” dS )z)transmit change of control line to remoter¬   g¹?N)r   rx   r   r|   r}   r   r   r7  rJ   rJ   rO   rą   n  s
   

zSerial.rfc2217_set_controlc                 C   s   dS )z`        check if server is ready to receive data. block for some time when
        not.
        NrJ   rg   rJ   rJ   rO   Śrfc2217_flow_server_readyz  s    z Serial.rfc2217_flow_server_readyc                 C   s   | j r7| j ” r7| jr| j d” |  t” t| j}| ” s.t	 
d” | j ” s*n| ” r| jr7| j d” | jdurH| jrE| j d” | jS td)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.)
        zpolling modem staterz   zpoll for modem state failedNzusing cached modem statez!remote sends no NOTIFY_MODEMSTATE)r   r   r{   rw   r	   rv   ŚNOTIFY_MODEMSTATEr   r   r|   r}   r   r   r   )ra   r~   rJ   rJ   rO   r    s"   



ū
zSerial.get_modem_state)rE   ©r5  )#ro   rp   rq   rr   Z	BAUDRATESrb   r×   rĻ   rÕ   r“   r   rļ   rö   rū   rÓ   rŌ   r  rŅ   rŠ   r  r  r  r  rĢ   r  r  r  r1  rj   rv   rü   rą   r8  r  Ś__classcell__rJ   rJ   r   rO   r   z  sH    a,%

		



D 
	r   c                   @   sf   e Zd ZdZdddZdd Zdd Zdd
dZdddZdd Z	dd Z
dd Zdd Zdd ZdS )ŚPortManagerzź    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| dttttttt| dttttttt| dttttttt| dttttttt| dttttttt| d	tttttt| j	t| d
tttttt| j	g| _| jrt| j d” | jD ]}|jtu r|  |j|j” qwd S )NFé’   r   r¢   r£   r¤   r    r„   r”   r¦   z*requesting initial Telnet/RFC 2217 options)ŚserialrW   rw   Ś_client_is_rfc2217r  r  r   r  Śmodemstate_maskŚlast_modemstateŚlinstate_maskrV   r¢   r¹   rŗ   r»   r¼   rR   r¾   rT   rø   r½   Ś
_client_okr   r	   r^   rj   rZ   rY   )ra   Zserial_portrW   rw   rY   rJ   rJ   rO   rb   °  s2   ł

žzPortManager.__init__c                 C   s(   d| _ | jr| j d” | jdd dS )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.
        Tzclient accepts RFC 2217©Śforce_notificationN)r?  rw   r
   Ścheck_modem_linesrg   rJ   rJ   rO   rC  Ó  s   zPortManager._client_okc                 C   s   | j  t| | ” dS r2  )rW   rū   rł   r3  rJ   rJ   rO   rj   ē  s   zPortManager.telnet_send_optionr5  c                 C   s4   |  tt”}| j tt t | | t t ” dS )z&Subnegotiation of RFC 2217 parameters.N)rų   rł   rś   rW   rū   r  r½   r  r6  rJ   rJ   rO   rv   ė  s   (z'PortManager.rfc2217_send_subnegotiationFc                 C   sā   | j jot| j jo
tB | j jotB | j jotB }|| j	pdA }|t@ r'|t
O }|t@ r/|tO }|t@ r7|tO }|t@ r?|tO }|| j	ksF|ro| jrN|| j@ sP|rh|  tt|| j@ g” | jrh| j d |”” |d@ | _	dS dS )z        read control lines from serial port and compare the last value sent to remote.
        send updates on changes.
        r   r+  éš   N)r>  r  r  r  r  r  r  r  r  rA  ŚMODEMSTATE_MASK_CTS_CHANGEŚMODEMSTATE_MASK_DSR_CHANGEŚMODEMSTATE_MASK_RI_CHANGEŚMODEMSTATE_MASK_CD_CHANGEr?  r@  rv   r.  r   rw   r
   rf   )ra   rE  Z
modemstateZdeltasrJ   rJ   rO   rF  ó  s6   

’
ž
ż’žözPortManager.check_modem_linesc                 c   s0    t |D ]}|tkrtV  tV  q|V  qdS )zū        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   rł   ©ra   rō   r  rJ   rJ   rO   Śescape  s   ūzPortManager.escapec                 c   s   t |D ]}| jtkr%|tkrt| _q| jdur!|  j|7  _q|V  q| jtkry|tkrB| jdur;|  j|7  _n|V  t| _q|tkrNt | _t| _q|tkra|  	t
| j” d| _t| _q|ttttfv rp|| _t| _q|  |” t| _q| jtkr|  | j|” t| _qdS )aņ          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  rł   r  r   r  rš   r  r  rņ   r»   r¼   r¹   rŗ   r  r  r  r  rL  rJ   rJ   rO   Śfilter(  s>   





ŲzPortManager.filterc                 C   r   r!  r"  rl   rJ   rJ   rO   r  c  r#  z#PortManager._telnet_process_commandc                 C   r$  r%  r&  r'  rJ   rJ   rO   r  i  r)  z$PortManager._telnet_negotiate_optionc              
   C   sF	  |dd t kr| jr| j d |”” |dd tkrz| jj}zt d|dd ”\}|dkr5|| j_W n" t	yX } z| jrJ| j 
d |”” || j_W Y d}~nd}~ww | jrl| j d	 |red
nd| jj”” |  tt d| jj”” dS |dd tkrß| jj}zt d|dd ”\}|dkr|| j_W n" t	y½ } z| jrÆ| j 
d |”” || j_W Y d}~nd}~ww | jrŃ| j d |rŹd
nd| jj”” |  tt d| jj”” dS |dd tkrO| jj}zt d|dd ”d }|dkrt| | j_W n$ t	y) } z| jr| j 
d |”” || j_W Y d}~nd}~ww | jr?| j d |r8d
nd| jj”” |  tt dt| jj ”” dS |dd tkræ| jj}zt d|dd ”d }|dkrtt| | j_W n$ t	y } z| jr| j 
d |”” || j_W Y d}~nd}~ww | jrÆ| j d |rØd
nd| jj”” |  tt dt| jj ”” dS |dd tkrO|dd tkró| jjrŽ|  tt ” dS | jj!rė|  tt"” dS |  tt#” dS |dd t#krd| j_d| j_!| jr| j d” |  tt#” dS |dd t kr5d| j_| jr-| j d” |  tt ” dS |dd t"krTd| j_!| jrL| j d” |  tt"” dS |dd t$kri| jrg| j %d” dS |dd t&krd| j_'| jr| j d” |  tt&” dS |dd t(kr§d| j_'| jr| j d” |  tt(” dS |dd t)kr¼| jrŗ| j %d” dS |dd t*krŪd| j_+| jrÓ| j d” |  tt*” dS |dd t,krśd| j_+| jrņ| j d” |  tt,” dS |dd t-kr| jr| j %d” dS |dd t.kr.d| j_/| jr&| j d ” |  tt.” dS |dd t0krMd| j_/| jrE| j d!” |  tt0” dS dS |dd t1krc|  t2t3dg” dS |dd t4kr~| jrv| j d"” | j5dd# dS |dd t6kr| jr| j d$” d| _7dS |dd t8kr®| jr©| j d%” d| _7dS |dd t9krŅt:|dd | _;| jrŠ| j d& | j;”” dS dS |dd t<kröt:|dd | _=| jrō| j d' | j=”” dS dS |dd t>kr{|dd t?kr| j @”  | jr| j d(” |  tAt?” dS |dd tBkr?| j C”  | jr7| j d)” |  tAtB” dS |dd tDkrd| j @”  | j C”  | jr\| j d*” |  tAtD” dS | jry| j 
d+ tE|dd ”” dS dS | jr| j 
d, tE|dd ”” dS dS | jr”| j %d- |”” dS dS ).r*  r   rE   zreceived COM_PORT_OPTION: {!r}rD   rŲ   é   zfailed to set baud rate: {}Nz{} baud rate: {}rx   rń   rŁ   rF   zfailed to set data size: {}z{} data size: {}zfailed to set parity: {}z{} parity: {}zfailed 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 implementedzchanged BREAK to activezchanged BREAK to inactivez%requested DTR state - not implementedzchanged DTR to activezchanged DTR to inactivez%requested RTS state - not implementedzchanged RTS to activezchanged RTS to inactivezrequest for modem staterD  ZsuspendZresumezline state mask: 0x{:02x}zmodem state mask: 0x{:02x}zpurge inz	purge outz
purge bothzundefined PURGE_DATA: {!r}zundefined COM_PORT_OPTION: {!r}zunknown subnegotiation: {!r})Fr½   rw   r	   rf   ræ   r>  r§   rŪ   Śunpackrk   r   r
   rv   rĄ   rÜ   rĮ   ZbytesizerĀ   rĆ   r©   ŚRFC2217_REVERSE_PARITY_MAPrÄ   rŻ   rÅ   ŚstopbitsŚRFC2217_REVERSE_STOPBIT_MAPrĘ   rŽ   rÉ   ŚSET_CONTROL_REQ_FLOW_SETTINGZxonxoffrŹ   rā   Zrtsctsrį   rć   ŚSET_CONTROL_REQ_BREAK_STATEr   r  Zbreak_conditionr  ŚSET_CONTROL_REQ_DTRr  Zdtrr  ŚSET_CONTROL_REQ_RTSr  Zrtsr  ŚNOTIFY_LINESTATEr,  r   r9  rF  r/  r   r0  ŚSET_LINESTATE_MASKr-  rB  ŚSET_MODEMSTATE_MASKr@  rĒ   rż   rÓ   rČ   rž   rŌ   ŚPURGE_BOTH_BUFFERSŚlist)ra   r   Zbackupr§   rķ   rØ   r©   rR  rJ   rJ   rO   r  |  s  ż ż 
ż"ž
ż"ž

üž

’’



"’"’’z*PortManager._telnet_process_subnegotiationrI   r:  )F)ro   rp   rq   rr   rb   rC  rj   rv   rF  rM  rN  r  r  r  rJ   rJ   rJ   rO   r<  ©  s    
#

$;r<  Ś__main__zrfc2217://localhost:7000r   z{}
z	write...
s   hello
z	read: {}
)Z
__future__r   rč   r³   rŪ   r·   r|   ré   ŚImportErrorZurllib.parseŚparser¶   Śqueuer>  Zserial.serialutilr   r   r   r   r   r   ŚDEBUGŚINFOZWARNINGZERRORrź   r  ZNOPZDMZBRKZIPZAOZAYTZECZELZGAr  r¹   rŗ   r»   r¼   rł   rś   rø   r¢   r¾   r½   ræ   rĮ   rĆ   rÅ   rÉ   rX  r9  r/  r0  rY  rZ  rĒ   rĄ   rĀ   rÄ   rĘ   rŹ   r,  r.  ZSERVER_FLOWCONTROL_SUSPENDZSERVER_FLOWCONTROL_RESUMEZSERVER_SET_LINESTATE_MASKZSERVER_SET_MODEMSTATE_MASKrČ   ZRFC2217_ANSWER_MAPrT  rć   rā   rį   rU  r  r  rV  r  r  rW  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_CONTROLZLINESTATE_MASK_TIMEOUTZLINESTATE_MASK_SHIFTREG_EMPTYZLINESTATE_MASK_TRANSREG_EMPTYZLINESTATE_MASK_BREAK_DETECTZLINESTATE_MASK_FRAMING_ERRORZLINESTATE_MASK_PARTIY_ERRORZLINESTATE_MASK_OVERRUN_ERRORZLINESTATE_MASK_DATA_READYr  r  r  r  rK  rJ  rI  rH  rż   rž   r[  ZPARITY_NONEZ
PARITY_ODDZPARITY_EVENZPARITY_MARKZPARITY_SPACErŻ   Śdicträ   rQ  ZSTOPBITS_ONEZSTOPBITS_ONE_POINT_FIVEZSTOPBITS_TWOrŽ   rS  r  r  r  rR   rS   rT   rU   ŚobjectrV   rs   r   r<  ro   ŚsysŚsŚstdoutrū   rf   Śflushrö   rÕ   rJ   rJ   rJ   rO   Ś<module>   s@  <’’ 
ü	ōūżFG    3   


÷