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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)�
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ValueError�command_size_limit)r r r r �max_command_size_limit~ s z"SMTPChannel.max_command_size_limitNFc C s t jj| ||d� || _|| _|| _|| _|| _|| _|rF|rFt d��|rdd| _
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smtp_state�mailfrom�rcpttos�require_SMTPUTF8� num_bytes�set_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_data�received_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
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| j | � d S )NzData:)r r z500 Error: bad syntaxzutf-8� r z500 Error: line too longZsmtp_z&500 Error: command "%s" not recognizedz451 Internal confusionz 552 Error: Too much mail data)� mail_options� rcpt_optionsz250 OK)#r6 �joinrV r rG rH rN rM rR rI r5 rj �find�upper�stripr> 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
7 < | j d � d S ) Nz501 Syntax: EHLO hostnamez503 Duplicate HELO/EHLOTz250-%sz 250-SIZE %s�MAIL� z 250-8BITMIMEz 250-SMTPUTF8�
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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 � jd�r$t|�\}}n t|�\}}|s<||fS |j|fS )Nr �<)r r )�lstrip�
startswithr r Z addr_spec)r r{ �address�restr r r �_getaddr� s zSMTPChannel._getaddrc C sN i }xD|D ]<}|j d�\}}}|j� s2|r6| r6d S |r>|nd||< q
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| jd� d S )Nz [SP <mail-parameters>]ZEHLOz250 Syntax: EHLO hostnameZHELOz250 Syntax: HELO hostnamer� z 250 Syntax: MAIL FROM: <address>ZRCPTz 250 Syntax: RCPT TO: <address>rg z250 Syntax: DATAZRSETz250 Syntax: RSETZNOOPz250 Syntax: NOOPZQUITz250 Syntax: QUITZVRFYz250 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)rs rI r> )r r{ ZextendedZlc_argr
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| jd� d S )NzB252 Cannot VRFY user, but will accept message and attempt deliveryz502 Could not VRFY %sz501 Syntax: VRFY <address>)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 � | _
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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 � | _
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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: <address>z [SP <mail-parameters>]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
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.
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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__server�setterZ_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 ZeZedddfdd�Zdd� Zdd� ZdS ) r NFc C s� || _ || _|| _|| _|| _|r.|r.td��tjj| |d� yNt j
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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.
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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.
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