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3 \�� � @ s^ d Z ddlZddlZddlZddlZddlZddlZddlZddlZddl Z ddl mZ ddlm Z mZ ddddd gZejd Zd ZG dd� d�Ze� ad ZdZdZd%dd�ZG dd� dej�ZG dd� dej�ZG dd� de�ZG dd� de�ZG dd � d e�ZG dd� d�Z dd� Z!e"dk�rZe!� Z#e#j$Z$de$k�rpe$j%d�Z&e'e$de&� e(� e)� dg�Z*e$e&d d� Z$nddl+Z*e,e*e$�Z-e-e#j.e#j/fe#j0e#j1fe#j2e#j3d�Z4e#j5�r6yddl6Z6W n. e7k �r� e8d ej9d!� ej:d� Y nX e6j;d"�d# Z<yej5e<� W n. e=k �r4 e8d$ej9d!� ej:d� Y nX yej>� W n e?k �rX Y nX dS )&a� An RFC 5321 smtp proxy with optional RFC 1870 and RFC 6531 extensions. Usage: %(program)s [options] [localhost:localport [remotehost:remoteport]] Options: --nosetuid -n This program generally tries to setuid `nobody', unless this flag is set. The setuid call will fail if this program is not run as root (in which case, use this flag). --version -V Print the version number and exit. --class classname -c classname Use `classname' as the concrete SMTP proxy class. Uses `PureProxy' by default. --size limit -s limit Restrict the total size of the incoming message to "limit" number of bytes via the RFC 1870 SIZE extension. Defaults to 33554432 bytes. --smtputf8 -u Enable the SMTPUTF8 extension and behave as an RFC 6531 smtp proxy. --debug -d Turn on debugging prints. --help -h Print this message and exit. Version: %(__version__)s If localhost is not given then `localhost' is used, and if localport is not given then 8025 is used. If remotehost is not given then `localhost' is used, and if remoteport is not given, then 25 is used. � N)�warn)� get_addr_spec�get_angle_addr�SMTPChannel� SMTPServer�DebuggingServer� PureProxy�MailmanProxyzPython SMTP proxy version 0.3c @ s e Zd Zdd� Zdd� ZdS )�Devnullc C s d S )N� )�self�msgr r �/usr/lib64/python3.6/smtpd.py�writef s z Devnull.writec C s d S )Nr )r r r r �flushg s z Devnull.flushN)�__name__� __module__�__qualname__r r r r r r r e s r � z, i � c C s4 t tt� tjd� |r&t |tjd� tj| � d S )N)�file)�print�__doc__�globals�sys�stderr�exit)�coder r r r �usagep s r c @ s� e Zd ZdZdZdZejefdd��Ze dd� �Z edd d fd d�Zdd � Z dd� Ze dd� �Zejdd� �Ze dd� �Zejdd� �Ze dd� �Zejdd� �Ze dd� �Zejdd� �Ze dd� �Zejdd� �Ze dd � �Zejd!d � �Ze d"d#� �Zejd$d#� �Ze d%d&� �Zejd'd&� �Ze d(d)� �Zejd*d)� �Ze d+d,� �Zejd-d,� �Ze d.d/� �Zejd0d/� �Zd1d2� Zd3d4� Zd5d6� Zd7d8� Zd9d:� Zd;d<� Z d=d>� Z!d?d@� Z"dAdB� Z#dCdD� Z$dEdF� Z%dGdH� Z&dIdJ� Z'dKdL� Z(dMdN� Z)dOdP� Z*dQdR� Z+dS )Sr r � i c C s | S )Nr )�xr r r �<lambda>| s zSMTPChannel.<lambda>c C s* yt | jj� �S tk r$ | jS X d S )N)�max�command_size_limits�values� 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| _ d| _d| _t | _nd| _ d| _td�| _d | _| j� d| _d | _| jj� tj� | _y|j� | _W n: tk r� } z| j� |jd tjkr� d S d }~X nX tdt | j�t!d � | j"d| jt#f � d S )N)�mapzFdecode_data and enable_SMTPUTF8 cannot be set to True at the same timer z �.� s � .� Fr zPeer:)r z 220 %s %s)$�asynchat� async_chat�__init__�smtp_server�conn�addr�data_size_limit�enable_SMTPUTF8�_decode_datar% �_emptystring�_linesep�_dotsep�NEWLINE�_newline�ord�_set_rset_state� seen_greeting� extended_smtpr# �clear�socketZgetfqdn�fqdnZgetpeername�peer�OSError�close�args�errnoZENOTCONNr �repr�DEBUGSTREAM�push�__version__) r Zserverr1 r2 r3 r( r4 �decode_data�errr 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_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<