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rX Y nX 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 MailmanProxyz Python SMTP proxy version 0.3c @ s e Zd Zdd Zdd ZdS )Devnullc C s d S )N )selfmsgr r /usr/lib64/python3.6/smtpd.pywritef s z
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async_chat__init__ smtp_serverconnaddrdata_size_limitenable_SMTPUTF8 _decode_datar% _emptystring_linesep_dotsepNEWLINE_newlineord_set_rset_state
seen_greeting
extended_smtpr# clearsocketZgetfqdnfqdnZ getpeernamepeerOSErrorcloseargserrnoZENOTCONNr repr DEBUGSTREAMpush __version__) r Zserverr1 r2 r3 r( r4 decode_dataerrr r r r/ s@
zSMTPChannel.__init__c C s. | j | _d| _g | _d| _d| _| jd dS )z/Reset state variables to their post-DATA state.NFr s
)COMMAND
smtp_statemailfromrcpttosrequire_SMTPUTF8 num_bytesset_terminator)r r r r _set_post_data_state s z SMTPChannel._set_post_data_statec C s | j d| _g | _dS )z.Reset all state variables except the greeting.r N)rT
received_datareceived_lines)r r r r r< s zSMTPChannel._set_rset_statec C s t dtd | jS )NzTAccess to __server attribute on SMTPChannel is deprecated, use 'smtp_server' instead )r DeprecationWarningr0 )r r r r __server s zSMTPChannel.__serverc C s t dtd || _d S )NzRSetting __server attribute on SMTPChannel is deprecated, set 'smtp_server' insteadrW )r rX r0 )r valuer r r rY s c C s t dtd | jS )NzUAccess to __line attribute on SMTPChannel is deprecated, use 'received_lines' insteadrW )r rX rV )r r r r __line s zSMTPChannel.__linec C s t dtd || _d S )NzSSetting __line attribute on SMTPChannel is deprecated, set 'received_lines' insteadrW )r rX rV )r rZ r r r r[ s c C s t dtd | jS )NzRAccess to __state attribute on SMTPChannel is deprecated, use 'smtp_state' insteadrW )r rX rN )r r r r __state s zSMTPChannel.__statec C s t dtd || _d S )NzPSetting __state attribute on SMTPChannel is deprecated, set 'smtp_state' insteadrW )r rX rN )r rZ r r r r\ s c C s t dtd | jS )NzXAccess to __greeting attribute on SMTPChannel is deprecated, use 'seen_greeting' insteadrW )r rX r= )r r r r
__greeting s zSMTPChannel.__greetingc C s t dtd || _d S )NzVSetting __greeting attribute on SMTPChannel is deprecated, set 'seen_greeting' insteadrW )r rX r= )r rZ r r r r] s c C s t dtd | jS )NzSAccess to __mailfrom attribute on SMTPChannel is deprecated, use 'mailfrom' insteadrW )r rX rO )r r r r
__mailfrom s zSMTPChannel.__mailfromc C s t dtd || _d S )NzQSetting __mailfrom attribute on SMTPChannel is deprecated, set 'mailfrom' insteadrW )r rX rO )r rZ r r r r^ s c C s t dtd | jS )NzQAccess to __rcpttos attribute on SMTPChannel is deprecated, use 'rcpttos' insteadrW )r rX rP )r r r r __rcpttos s zSMTPChannel.__rcpttosc C s t dtd || _d S )NzOSetting __rcpttos attribute on SMTPChannel is deprecated, set 'rcpttos' insteadrW )r rX rP )r rZ r r r r_ s c C s t dtd | jS )NzTAccess to __data attribute on SMTPChannel is deprecated, use 'received_data' insteadrW )r rX rU )r r r r __data s zSMTPChannel.__datac C s t dtd || _d S )NzRSetting __data attribute on SMTPChannel is deprecated, set 'received_data' insteadrW )r rX rU )r rZ r r r r` s c C s t dtd | jS )NzKAccess to __fqdn attribute on SMTPChannel is deprecated, use 'fqdn' insteadrW )r rX rA )r r r r __fqdn
s zSMTPChannel.__fqdnc C s t dtd || _d S )NzISetting __fqdn attribute on SMTPChannel is deprecated, set 'fqdn' insteadrW )r rX rA )r rZ r r r ra s c C s t dtd | jS )NzKAccess to __peer attribute on SMTPChannel is deprecated, use 'peer' insteadrW )r rX rB )r r r r __peer s zSMTPChannel.__peerc C s t dtd || _d S )NzISetting __peer attribute on SMTPChannel is deprecated, set 'peer' insteadrW )r rX rB )r rZ r r r rb s c C s t dtd | jS )NzKAccess to __conn attribute on SMTPChannel is deprecated, use 'conn' insteadrW )r rX r1 )r r r r __conn s zSMTPChannel.__connc C s t dtd || _d S )NzISetting __conn attribute on SMTPChannel is deprecated, set 'conn' insteadrW )r rX r1 )r rZ r r r rc % s c C s t dtd | jS )NzKAccess to __addr attribute on SMTPChannel is deprecated, use 'addr' insteadrW )r rX r2 )r r r r __addr+ s zSMTPChannel.__addrc C s t dtd || _d S )NzISetting __addr attribute on SMTPChannel is deprecated, set 'addr' insteadrW )r rX r2 )r rZ r r r rd 0 s c C s& t jj| t|d | jrdnd d S )Nz
zutf-8ascii)r- r. rI bytesrQ )r r
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zSMTPChannel.pushc C s| d }| j | jkr| j}n| j | jkr*| j}|r<| j|kr r# r& getattrrg r3 splitr7 r8 ri r: rU rB rO rP ro rp r0 process_messagerT )
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z SMTPChannel.found_terminatorc C sH |s| j d d S | jr&| j d d S | j || _| j d| j d S )Nz501 Syntax: HELO hostnamez503 Duplicate HELO/EHLOz250 %s)rI r= r< rA )r r{ r r r smtp_HELO s
zSMTPChannel.smtp_HELOc C s |s| j d d S | jr&| j d d S | j || _d| _| j d| j | jrr| j d| j | jd d7 < | js| j d | jr| j d | jd d
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z250 HELP) rI r= r< r> rA r3 r# r5 r4 )r r{ r r r smtp_EHLO s&
zSMTPChannel.smtp_EHLOc C s |r| j d n
| j d d S )Nz501 Syntax: NOOPz250 OK)rI )r r{ r r r smtp_NOOP s zSMTPChannel.smtp_NOOPc C s | j d | j d S )Nz221 Bye)rI Zclose_when_done)r r{ r r r smtp_QUIT s
zSMTPChannel.smtp_QUITc C s0 t |}|d | j |kr,||d j S dS )Nr )rh rs rt )r keywordr{ Zkeylenr r r _strip_command_keyword s z"SMTPChannel._strip_command_keywordc C sF |sdS |j jdr$t|\}}n t|\}}|s<||fS |j|fS )Nr <)r r )lstrip
startswithr r Z addr_spec)r r{ addressrestr r r _getaddr s zSMTPChannel._getaddrc C sN i }xD|D ]<}|j d\}}}|j s2|r6| r6d S |r>|nd||< q
W |S )N=T) partitionisalnum)r paramsresultZparameqrZ r r r
_getparams s
zSMTPChannel._getparamsc C s |rd}|j }|dkr$| jd q|dkr8| jd q|dkr^d}| jrR||7 }| j| q|dkrd }| jrx||7 }| j| q|d
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| jd d S )Nz [SP ]ZEHLOz250 Syntax: EHLO hostnameZHELOz250 Syntax: HELO hostnamer z 250 Syntax: MAIL FROM: ZRCPTz 250 Syntax: RCPT TO: rg z250 Syntax: DATAZRSETz250 Syntax: RSETZNOOPz250 Syntax: NOOPZQUITz250 Syntax: QUITZVRFYz250 Syntax: VRFY zD501 Supported commands: EHLO HELO MAIL RCPT DATA RSET NOOP QUIT VRFYzD250 Supported commands: EHLO HELO MAIL RCPT DATA RSET NOOP QUIT VRFY)rs rI r> )r r{ ZextendedZlc_argr
r r r smtp_HELP s: zSMTPChannel.smtp_HELPc C s@ |r2| j |\}}|r"| jd q<| jd| n
| jd d S )NzB252 Cannot VRFY user, but will accept message and attempt deliveryz502 Could not VRFY %sz501 Syntax: VRFY )r rI )r r{ r r r r r smtp_VRFY s zSMTPChannel.smtp_VRFYc C s | j s| jd d S td|td d}| jr4|d7 }|d krJ| j| d S | jd|}| j|\}}|sv| j| d S | j r|r| j| d S | jr| jd d S |j j | _
| j | j
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dd }|r|j sh| j| d S | jrt|| jkr| jd d S t|j dkr| jd d S || _td| jtd | jd d S )Nz503 Error: send HELO firstz ===> MAIL)r z 501 Syntax: MAIL FROM: z [SP ]zFROM:z 503 Error: nested MAIL commandZBODY7BIT8BITMIMEz1501 Error: BODY can only be one of 7BIT, 8BITMIMEZSMTPUTF8FTz&501 Error: SMTPUTF8 takes no argumentsZSIZEz:552 Error: message size exceeds fixed maximum message sizer z:555 MAIL FROM parameters not recognized or not implementedzsender:z250 OK)r r )r= rI r rH r> r r rO rs rv ro r r5 popr4 rQ isdigitr3 intrh keys)r r{ syntaxerrr r Zbodysmtputf8sizer r r smtp_MAIL sh
zSMTPChannel.smtp_MAILc C s | j s| jd d S td|td | js6| jd d S d}| jrH|d7 }|d kr^| j| d S | jd|}| j|\}}|s| j| d S | j r|r| j| d S |j j | _
| j | j
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| jtd | jd d S ) Nz503 Error: send HELO firstz ===> RCPT)r z 503 Error: need MAIL commandz 501 Syntax: RCPT TO: z [SP ]zTO:r z8555 RCPT TO parameters not recognized or not implementedzrecips:z250 OK)r= rI r rH rO r> r r rs rv rp r rh r rP ri )r r{ r r r r r r smtp_RCPT7 s@
zSMTPChannel.smtp_RCPTc C s( |r| j d d S | j | j d d S )Nz501 Syntax: RSETz250 OK)rI r< )r r{ r r r smtp_RSETZ s
zSMTPChannel.smtp_RSETc C sZ | j s| jd d S | js(| jd d S |r:| jd d S | j| _| jd | jd d S )Nz503 Error: send HELO firstz 503 Error: need RCPT commandz501 Syntax: DATAs
.
z#354 End data with .)r= rI rP rg rN rS )r r{ r r r smtp_DATAa s
zSMTPChannel.smtp_DATAc C s | j d d S )Nz502 EXPN not implemented)rI )r r{ r r r smtp_EXPNp s zSMTPChannel.smtp_EXPN),r r r rM rg r& collections defaultdictr# propertyr' DATA_SIZE_DEFAULTr/ rT r< Z_SMTPChannel__serversetterZ_SMTPChannel__lineZ_SMTPChannel__stateZ_SMTPChannel__greetingZ_SMTPChannel__mailfromZ_SMTPChannel__rcpttosZ_SMTPChannel__dataZ_SMTPChannel__fqdnZ_SMTPChannel__peerZ_SMTPChannel__connZ_SMTPChannel__addrrI rm r r r r r r r r r r r r r r r r r r r r w s` & > # 6#c @ s2 e Zd ZeZedddfddZdd Zdd ZdS ) r NFc C s || _ || _|| _|| _|| _|r.|r.tdtjj| |d yNt j
|dt j i}| j |d d |d d | j
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zSMTPServer.__init__c C s6 t dt| td | j| ||| j| j| j| j}d S )NzIncoming connection from %s)r )r rG rH
channel_classr3 Z_mapr4 r5 )r r1 r2 Zchannelr r r handle_accepted s zSMTPServer.handle_acceptedc K s t dS )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.
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z&DebuggingServer._print_message_contentc K sX t d |r@|jdr&t d|d |jdr@t d|d | j|| t d d S )Nz%---------- MESSAGE FOLLOWS ----------ro zmail options: %srp zrcpt options: %s
z%------------ END MESSAGE ------------)r getr )r rB rO rP rk r~ r r r rw s
z DebuggingServer.process_messageN)r r r r rw r r r r r s c s, e Zd Z fddZdd Zdd Z ZS )r c s. d|kr|d rt dtt| j|| d S )Nr4 z$PureProxy does not support SMTPUTF8.)r% superr r/ )r rE r~ )r r r r/ s zPureProxy.__init__c C sh |j d}d}x|D ]}|s P |d7 }qW |j|d|d tj|}| j|||}td|td d S )Nr r r z
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