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smtpd.cpython-310.pyc
o }5h] @ s` d Z ddlZddlZddlZddlZddlZddlZddlZddlm Z ddl m Z m Z g dZ e dedd ddlZddlZejd Zd ZG d d d Ze ad Zd ZdZd(ddZG dd dejZG dd dej Z G dd de Z G dd de Z G dd de Z G d d d Z!d d Z"e#d kr.e" Z$e$j%Z%d!e%v re%&d!Z'e(e%de' e) e* dgZ+e%e'd" d Z%nddl,Z+e-e+e%Z.e.e$j/e$j0fe$j1e$j2fe$j3e$j4d#Z5e$j6rzddl7Z7W n e8y e9d$ej:d% e;d" Y nw e7<d&d Z=ze6e= W n e>y e9d'ej:d% e;d" Y nw ze? W dS e@y- Y dS w dS ))a An RFC 5321 smtp proxy with optional RFC 1870 and RFC 6531 extensions. Usage: %(program)s [options] [localhost:localport [remotehost:remoteport]] Options: --nosetuid -n This program generally tries to setuid `nobody', unless this flag is set. The setuid call will fail if this program is not run as root (in which case, use this flag). --version -V Print the version number and exit. --class classname -c classname Use `classname' as the concrete SMTP proxy class. Uses `PureProxy' by default. --size limit -s limit Restrict the total size of the incoming message to "limit" number of bytes via the RFC 1870 SIZE extension. Defaults to 33554432 bytes. --smtputf8 -u Enable the SMTPUTF8 extension and behave as an RFC 6531 smtp proxy. --debug -d Turn on debugging prints. --help -h Print this message and exit. Version: %(__version__)s If localhost is not given then `localhost' is used, and if localport is not given then 8025 is used. If remotehost is not given then `localhost' is used, and if remoteport is not given, then 25 is used. N)warn) get_addr_specget_angle_addr) SMTPChannel SMTPServerDebuggingServer PureProxy MailmanProxyzThe smtpd module is deprecated and unmaintained and will be removed in Python 3.12. Please see aiosmtpd (https://aiosmtpd.readthedocs.io/) for the recommended replacement. ) stacklevelz Python SMTP proxy version 0.3c @ e Zd Zdd Zdd ZdS )Devnullc C d S N selfmsgr r /usr/lib/python3.10/smtpd.pywriter z Devnull.writec C r r r r r r r flushs r z Devnull.flushN)__name__ __module__ __qualname__r r r r r r r q s r z, i c C s4 t tt tjd |rt |tjd t| d S )Nfile)print__doc__globalssysstderrexit)coder r r r usage| s r' c @ s e Zd ZdZdZdZeefddZe dd Z e dd d fd d Z d d Z dd Ze dd Zejdd Ze dd Zejdd Ze dd Zejdd Ze dd Zejdd Ze d d Zejd d Ze d d Zejd!d Ze d"d# Zejd$d# Ze d%d& Zejd'd& Ze d(d) Zejd*d) Ze d+d, Zejd-d, Ze d.d/ Zejd0d/ Zd1d2 Zd3d4 Z d5d6 Z d7d8 Z d9d: Z d;d< Z d=d> Z!d?d@ Z"dAdB Z#dCdD Z$dEdF Z%dGdH Z&dIdJ Z'dKdL Z(dMdN Z)dOdP Z*dQdR Z+dS )Sr r i c C s | S r r )xr r r <lambda> r zSMTPChannel.<lambda>c C s* zt | j W S ty | j Y S w r )maxcommand_size_limitsvalues ValueErrorcommand_size_limitr r r r max_command_size_limit s z"SMTPChannel.max_command_size_limitNFc C s t jj| ||d || _|| _|| _|| _|| _|| _|r#|r#t d|r2d| _ d| _ d| _ t | _nd| _ d| _ td| _ d | _| d| _d | _| j t | _z| | _W n tyy } z| |j t j krn W Y d }~d S d }~ww t d t | jt d | !d | jt"f d S )NmapFdecode_data and enable_SMTPUTF8 cannot be set to True at the same timer . . FzPeer:r z 220 %s %s)#asynchat async_chat__init__ smtp_serverconnaddrdata_size_limitenable_SMTPUTF8 _decode_datar. _emptystring_linesep_dotsepNEWLINE_newlineord_set_rset_state seen_greeting extended_smtpr, clearsocketgetfqdnfqdn getpeernamepeerOSErrorcloseerrnoENOTCONNr repr DEBUGSTREAMpush __version__) r serverr> r? r@ r2 rA decode_dataerrr r r r< sD zSMTPChannel.__init__c C s. | j | _d| _g | _d| _d| _| d dS )z/Reset state variables to their post-DATA state.NFr r7 )COMMAND smtp_statemailfromrcpttosrequire_SMTPUTF8 num_bytesset_terminatorr r r r _set_post_data_state s z SMTPChannel._set_post_data_statec C s | d| _g | _dS )z.Reset all state variables except the greeting.r N)rd received_datareceived_linesr r r r rI s zSMTPChannel._set_rset_statec C t dtd | jS )NzTAccess to __server attribute on SMTPChannel is deprecated, use 'smtp_server' insteadr r DeprecationWarningr= r r r r __server zSMTPChannel.__serverc C t dtd || _d S )NzRSetting __server attribute on SMTPChannel is deprecated, set 'smtp_server' insteadr rh r valuer r r rj c C rg )NzUAccess to __line attribute on SMTPChannel is deprecated, use 'received_lines' insteadr r ri rf r r r r __line rk zSMTPChannel.__linec C rl )NzSSetting __line attribute on SMTPChannel is deprecated, set 'received_lines' insteadr rp rm r r r rq ro c C rg )NzRAccess to __state attribute on SMTPChannel is deprecated, use 'smtp_state' insteadr r ri r^ r r r r __state rk zSMTPChannel.__statec C rl )NzPSetting __state attribute on SMTPChannel is deprecated, set 'smtp_state' insteadr rr rm r r r rs ro c C rg )NzXAccess to __greeting attribute on SMTPChannel is deprecated, use 'seen_greeting' insteadr r ri rJ r r r r __greeting rk zSMTPChannel.__greetingc C rl )NzVSetting __greeting attribute on SMTPChannel is deprecated, set 'seen_greeting' insteadr rt rm r r r ru ro c C rg )NzSAccess to __mailfrom attribute on SMTPChannel is deprecated, use 'mailfrom' insteadr r ri r_ r r r r __mailfrom rk zSMTPChannel.__mailfromc C rl )NzQSetting __mailfrom attribute on SMTPChannel is deprecated, set 'mailfrom' insteadr rv rm r r r rw ro c C rg )NzQAccess to __rcpttos attribute on SMTPChannel is deprecated, use 'rcpttos' insteadr r ri r` r r r r __rcpttos rk zSMTPChannel.__rcpttosc C rl )NzOSetting __rcpttos attribute on SMTPChannel is deprecated, set 'rcpttos' insteadr rx rm r r r ry ro c C rg )NzTAccess to __data attribute on SMTPChannel is deprecated, use 'received_data' insteadr r ri re r r r r __data rk zSMTPChannel.__datac C rl )NzRSetting __data attribute on SMTPChannel is deprecated, set 'received_data' insteadr rz rm r r r r{ ro c C rg )NzKAccess to __fqdn attribute on SMTPChannel is deprecated, use 'fqdn' insteadr r ri rO r r r r __fqdn rk zSMTPChannel.__fqdnc C rl )NzISetting __fqdn attribute on SMTPChannel is deprecated, set 'fqdn' insteadr r| rm r r r r} ro c C rg )NzKAccess to __peer attribute on SMTPChannel is deprecated, use 'peer' insteadr r ri rQ r r r r __peer! rk zSMTPChannel.__peerc C rl )NzISetting __peer attribute on SMTPChannel is deprecated, set 'peer' insteadr r~ rm r r r r & ro c C rg )NzKAccess to __conn attribute on SMTPChannel is deprecated, use 'conn' insteadr r ri r> r r r r __conn, rk zSMTPChannel.__connc C rl )NzISetting __conn attribute on SMTPChannel is deprecated, set 'conn' insteadr r rm r r r r 1 ro c C rg )NzKAccess to __addr attribute on SMTPChannel is deprecated, use 'addr' insteadr r ri r? r r r r __addr7 rk zSMTPChannel.__addrc C rl )NzISetting __addr attribute on SMTPChannel is deprecated, set 'addr' insteadr r rm r r r r < ro c C s& t j| t|d | jr dnd d S )Nr4 utf-8ascii)r: r; rX bytesra r r r r rX C s zSMTPChannel.pushc C s~ d }| j | jkr | j}n | j | jkr| j}|r | j|kr d S |r)| jt|7 _| jr7| j t |d d S | j | d S )Nr ) r^ r] r0 DATAr@ rb lenrB rf appendstr)r datalimitr r r collect_incoming_dataH s z!SMTPChannel.collect_incoming_datac C s | j | j}tdt|td g | _| j| jkr| jd}| _|s)| d d S | j s1t |d}| d}|dk rA| }d }n|d | }||d d }| jr[| j| n| j}||kri| d d S t| d | d }|s|| d | d S || d S | j| jkr| d d| _d S | jr| j| jkr| d d| _d S g }|| jD ]} | r| d | jkr|| dd q|| q| j|| _| j| j | j | jf} i } | j s| j | j d } | j j!| i | } | " | s| d d S | | d S )NzData:r r z500 Error: bad syntaxr r( z500 Error: line too longsmtp_z&500 Error: command "%s" not recognizedz451 Internal confusionz 552 Error: Too much mail data) mail_options rcpt_options250 OK)#rC joinrf r rV rW r^ r] rb rX rB r findupperstriprK r, r/ getattrr r@ splitrD rE r rG re rQ r_ r` r r r= process_messagerd ) r lineszicommandargmax_szmethodr textargskwargsstatusr r r found_terminatorX sl z SMTPChannel.found_terminatorc C sH |s | d d S | jr| d d S | || _| d| j d S )Nz501 Syntax: HELO hostname503 Duplicate HELO/EHLOz250 %s)rX rJ rI rO r r r r r smtp_HELO s zSMTPChannel.smtp_HELOc C s |s | d d S | jr| d d S | || _d| _| d| j | jr9| d| j | jd d7 < | jsA| d | jrR| d | jd d 7 < | d d S ) Nz501 Syntax: EHLO hostnamer Tz250-%sz 250-SIZE %sMAIL z 250-8BITMIMEz 250-SMTPUTF8 z250 HELP) rX rJ rI rK rO r@ r, rB rA r r r r smtp_EHLO s& zSMTPChannel.smtp_EHLOc C s |r | d d S | d d S )Nz501 Syntax: NOOPr rX r r r r smtp_NOOP s zSMTPChannel.smtp_NOOPc C s | d | d S )Nz221 Bye)rX close_when_doner r r r smtp_QUIT s zSMTPChannel.smtp_QUITc C s0 t |}|d | |kr||d S dS )Nr )r r r )r keywordr keylenr r r _strip_command_keyword s z"SMTPChannel._strip_command_keywordc C sF |sdS | drt|\}}nt|\}}|s ||fS |j|fS )N)r r <)lstrip startswithr r addr_spec)r r addressrestr r r _getaddr s zSMTPChannel._getaddrc C sH i }|D ] }| d\}}}| r|r|s d S |r |nd||< q|S )N=T) partitionisalnum)r paramsresultparameqrn r r r _getparams s zSMTPChannel._getparamsc C s |rd}| }|dkr| d d S |dkr | d d S |dkr2d}| jr+||7 }| | d S |dkrFd }| jr?||7 }| | d S |d krQ| d d S |d kr\| d d S |dkrg| d d S |dkrr| d d S |dkr}| d d S | d d S | d d S )N [SP <mail-parameters>]EHLOz250 Syntax: EHLO hostnameHELOz250 Syntax: HELO hostnamer z 250 Syntax: MAIL FROM: <address>RCPTz 250 Syntax: RCPT TO: <address>r z250 Syntax: DATARSETz250 Syntax: RSETNOOPz250 Syntax: NOOPQUITz250 Syntax: QUITVRFYz250 Syntax: VRFY <address>zD501 Supported commands: EHLO HELO MAIL RCPT DATA RSET NOOP QUIT VRFYzD250 Supported commands: EHLO HELO MAIL RCPT DATA RSET NOOP QUIT VRFY)r rX rK )r r extendedlc_argr r r r smtp_HELP s: zSMTPChannel.smtp_HELPc C sD |r| |\}}|r| d d S | d| d S | d d S )NzB252 Cannot VRFY user, but will accept message and attempt deliveryz502 Could not VRFY %sz501 Syntax: VRFY <address>)r rX )r r r r r r r smtp_VRFY s zSMTPChannel.smtp_VRFYc C s | j s | d d S td|td d}| jr|d7 }|d u r%| | d S | d|}| |\}}|s;| | d S | jsG|rG| | d S | jrQ| d d S | | _ | | j }|d u ri| | d S | j s}| dd }|d vr}| d d S | jr| d d }|du rd| _n |d ur| d d S | dd }|r| s| | d S | jrt|| jkr| d d S t| dkr| d d S || _td| jtd | d d S )N503 Error: send HELO firstz ===> MAILr z 501 Syntax: MAIL FROM: <address>r zFROM:z 503 Error: nested MAIL commandBODY7BIT)r 8BITMIMEz1501 Error: BODY can only be one of 7BIT, 8BITMIMESMTPUTF8FTz&501 Error: SMTPUTF8 takes no argumentsSIZEz:552 Error: message size exceeds fixed maximum message sizer z:555 MAIL FROM parameters not recognized or not implementedzsender:r )rJ rX r rW rK r r r_ r r r r rB poprA ra isdigitr@ intr keys)r r syntaxerrr r bodysmtputf8sizer r r smtp_MAIL sh zSMTPChannel.smtp_MAILc C s | j s | d d S td|td | js| d d S d}| jr$|d7 }|d u r/| | d S | d|}| |\}}|sE| | d S | jsQ|rQ| | d S | | _ | | j }|d u ri| | d S t | dkrx| d d S | j| td | jtd | d d S ) Nr z ===> RCPTr z 503 Error: need MAIL commandz 501 Syntax: RCPT TO: <address>r zTO:r z8555 RCPT TO parameters not recognized or not implementedzrecips:r )rJ rX r rW r_ rK r r r r r r r r r` r )r r r r r r r r smtp_RCPTC s@ zSMTPChannel.smtp_RCPTc C s( |r | d d S | | d d S )Nz501 Syntax: RSETr )rX rI r r r r smtp_RSETf s zSMTPChannel.smtp_RSETc C sZ | j s | d d S | js| d d S |r | d d S | j| _| d | d d S )Nr z 503 Error: need RCPT commandz501 Syntax: DATAs . z#354 End data with <CR><LF>.<CR><LF>)rJ rX r` r r^ rc r r r r smtp_DATAm s zSMTPChannel.smtp_DATAc C s | d d S )Nz502 EXPN not implementedr r r r r smtp_EXPN| s zSMTPChannel.smtp_EXPN),r r r r] r r/ collections defaultdictr, propertyr0 DATA_SIZE_DEFAULTr< rd rI _SMTPChannel__serversetter_SMTPChannel__line_SMTPChannel__state_SMTPChannel__greeting_SMTPChannel__mailfrom_SMTPChannel__rcpttos_SMTPChannel__data_SMTPChannel__fqdn_SMTPChannel__peer_SMTPChannel__conn_SMTPChannel__addrrX r r r r r r r r r r r r r r r r r r r r r s ' > # 6# r c @ s2 e Zd ZeZedddfddZdd Zdd ZdS ) r NFc C s || _ || _|| _|| _|| _|r|rtdtjj| |d z't j |dt j i}| |d d |d d | | | | d W n | td| jjtt ||f td d S ) Nr3 r1 typer r( z0%s started at %s Local addr: %s Remote addr:%sr ) _localaddr _remoteaddrr@ rA rB r. asyncore dispatcherr< rM getaddrinfo SOCK_STREAM create_socketset_reuse_addrbindlistenrS r __class__r timectimerW )r localaddr remoteaddrr@ r2 rA r[ gai_resultsr r r r< s2 zSMTPServer.__init__c C s6 t dt| td | | ||| j| j| j| j}d S )NzIncoming connection from %sr )r rV rW channel_classr@ _maprA rB )r r> r? channelr r r handle_accepted s zSMTPServer.handle_acceptedc K s t )a Override this abstract method to handle messages from the client. peer is a tuple containing (ipaddr, port) of the client that made the socket connection to our smtp port. mailfrom is the raw address the client claims the message is coming from. rcpttos is a list of raw addresses the client wishes to deliver the message to. data is a string containing the entire full text of the message, headers (if supplied) and all. It has been `de-transparencied' according to RFC 821, Section 4.5.2. In other words, a line containing a `.' followed by other text has had the leading dot removed. kwargs is a dictionary containing additional information. It is empty if decode_data=True was given as init parameter, otherwise it will contain the following keys: 'mail_options': list of parameters to the mail command. All elements are uppercase strings. Example: ['BODY=8BITMIME', 'SMTPUTF8']. 'rcpt_options': same, for the rcpt command. This function should return None for a normal `250 Ok' response; otherwise, it should return the desired response string in RFC 821 format. )NotImplementedErrorr rQ r_ r` r r r r r r s zSMTPServer.process_message) r r r r r r r< r r r r r r r s r c @ r )r c C sl d}| }|D ]+}|r&|s&d|d }t|ts t|d}t| d}t|ts/t|}t| qd S )Nr( zX-Peer: r r ) splitlines isinstancer rV encoder )r rQ r inheaderslinesr peerheaderr r r _print_message_content s z&DebuggingServer._print_message_contentc K sX t d |r |drt d|d |dr t d|d | || t d d S )Nz%---------- MESSAGE FOLLOWS ----------r zmail options: %sr zrcpt options: %s z%------------ END MESSAGE ------------)r getr r r r r r s z DebuggingServer.process_messageN)r r r r r r r r r r s r c s, e Zd Z fddZdd Zdd Z ZS )r c s2 d|v r |d r t dtt| j|i | d S )NrA z$PureProxy does not support SMTPUTF8.)r. superr r< r r r r r r r< s zPureProxy.__init__c C sf | d}d}|D ] }|s n|d7 }q ||d|d t|}| |||}td|td d S )Nr r r( z X-Peer: %szwe got some refusals:r )r insertrF r _deliverr rW ) r rQ r_ r` r r r r refusedr r r r s zPureProxy.process_messagec C s dd l }i }z%| }|| jd | jd z||||}W | W |S | w |jyH } ztdtd |j }W Y d }~|S d }~w t |j fy| } z&td|j td t |dd}t |dd } |D ]} || f|| < qhW Y d }~|S d }~ww ) Nr r( zgot SMTPRecipientsRefusedr got smtp_code smtp_errorignore)smtplibSMTPconnectr sendmailquitSMTPRecipientsRefusedr rW recipientsrR SMTPExceptionr r ) r r_ r` r r r seerrcodeerrmsgrr r r r s2 zPureProxy._deliver)r r r r< r r __classcell__r r r r r s r c s$ e Zd Z fddZdd Z ZS )r c s> t dtd d|v r|d rtdtt| j|i | d S )Nz8MailmanProxy is deprecated and will be removed in futurer rA z'MailmanProxy does not support SMTPUTF8.)r ri r. r r r< r r r r r< s zMailmanProxy.__init__c C s ddl m} ddlm} ddlm} ddlm} g } |D ]:} | dd } | d} t| dkr3q | d } t| dkrB| d }nd }| | rM|d vrNq | | | |f q | D ] \} } }| | qYt d d |td |r~| |||}t d|td i }||}||}|ds||d< |dstt |d< | D ]g\} } }t d| td || }|s|j| dd}||| < |d kr|j|d d q|dkr|j|d d q|dkr|j|d d q|dkr|j|d d q|d v r |d krd |d < nd!|d < |j|d d qd S )"Nr )StringIO)Utils)Message)MailList@-r r( r )r adminownerrequestr leavezforwarding recips:r r zwe got refusals:fromFromdateDatezsending message to)lock)tolistr1 )toadminr2 )toownerr3 ) torequest)r r4 r subscribeSubject unsubscribe)ior+ Mailmanr, r- r. lowerr r list_existsr remover r rW r r r r Enqueue)r rQ r_ r` r r+ r, r- r. listnamesrcptlocalpartslistnamer r mlistsr% r mlistr r r r sf z MailmanProxy.process_message)r r r r< r r* r r r r r s r c @ s e Zd ZdZdZdZdZdS )OptionsTr NF)r r r setuid classname size_limitrA r r r r rN m s rN c C sX zt tjdd dg d\} }W n t jy* } z td| W Y d }~nd }~ww t }| D ]\\}}|dv r=td q0|dv rKtt td q0|dv rSd|_ q0|d v r[||_ q0|d v rctj a q0|d v rkd |_ q0|d v rz t|}||_W q0 td| tj d td Y q0q0t|dk rd}d}n&t|dk r|d }d}nt|dk r|d }|d }n tddt| |d} | dk rtdd| |d | |_z t|| d d |_W n ty tdd| Y nw |d} | dk rtdd| |d | |_zt|| d d |_W |S ty+ tdd| Y |S w )Nr( z nVhc:s:du)zclass=nosetuidversionhelpzsize=debugr )z-hz--helpr )z-Vz --version)z-nz --nosetuidF)z-cz--class)z-dz--debug)z-uz --smtputf8T)z-sz--sizezInvalid size: r zlocalhost:8025z localhost:25r zInvalid arguments: %s:zBad local spec: %szBad local port: %szBad remote spec: %szBad remote port: %s)getoptr# argverrorr' rN r rY r% rO rP r$ rW rA r rQ r COMMASPACEr r localhost localportr. remotehost remoteport) optsr r& optionsoptr int_size localspec remotespecr r r r parseargst s| rf __main__r5 r( )rA z7Cannot import module "pwd"; try running with -n option.r nobodyz3Cannot setuid "nobody"; try running with -n option.)r )Ar! r# osrT rX r rM r warningsr email._header_value_parserr r __all__ri r r: rY programrY r rW rF r[ r r' r; r r r r r r rN rf r ra rP rfindlastdot __import__r" localsmodrg r class_r\ r] r^ r_ rQ rA proxyrO pwd ImportErrorr r$ r% getpwnamrh PermissionErrorloopKeyboardInterruptr r r r <module> s N M -U B