shell bypass 403
��Yfs� � @ sW d Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l
Z
d d l Z d d l Z d d l
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d d g Z d Z d Z d Z d Z d Z e j d e j � Z Gd d � d e � Z Gd d � d e � Z Gd d � d e � Z Gd d � d e � Z Gd d � d e � Z Gd d � d e � Z Gd d � d e � Z Gd d
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r9d) Z+ Yn Xd* Z+ Gd+ d � d � Z, e+ r|Gd, d- � d- e, � Z- e j. d- � d. Z/ Gd/ d0 � d0 e, � Z0 e1 d1 k rSd2 d3 � Z2 e2 d4 � Z3 e2 d5 � j4 d6 � Z5 e6 d7 � d8 Z7 x% e j8 j9 � Z: e: r�Pe7 e: Z7 q�We6 d9 e; e7 � � e, d: � Z< e< j= d; � e< j> e3 e5 e7 � e< j? � d S)<a SMTP/ESMTP client class.
This should follow RFC 821 (SMTP), RFC 1869 (ESMTP), RFC 2554 (SMTP
Authentication) and RFC 2487 (Secure SMTP over TLS).
Notes:
Please remember, when doing ESMTP, that the names of the SMTP service
extensions are NOT the same thing as the option keywords for the RCPT
and MAIL commands!
Example:
>>> import smtplib
>>> s=smtplib.SMTP("localhost")
>>> print(s.help())
This is Sendmail version 8.8.4
Topics:
HELO EHLO MAIL RCPT DATA
RSET NOOP QUIT HELP VRFY
EXPN VERB ETRN DSN
For more info use "HELP <topic>".
To report bugs in the implementation send email to
sendmail-bugs@sendmail.org.
For local information send email to Postmaster at your site.
End of HELP info
>>> s.putcmd("vrfy","someone@here")
>>> s.getreply()
(250, "Somebody OverHere <somebody@here.my.org>")
>>> s.quit()
� N)� body_encode�
SMTPException�SMTPServerDisconnected�SMTPResponseException�SMTPSenderRefused�SMTPRecipientsRefused�
SMTPDataError�SMTPConnectError�
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i z auth=(.*)c @ s e Z d Z d Z d S)r z4Base class for all exceptions raised by this module.N)�__name__�
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N)r r r r r r r r r J s r c @ s e Z d Z d Z d S)r z�Not connected to any SMTP server.
This exception is raised when the server unexpectedly disconnects,
or when an attempt is made to use the SMTP instance before
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N)r r r r r r r r r Q s c @ s" e Z d Z d Z d d � Z d S)r a2 Base class for all exceptions that include an SMTP error code.
These exceptions are generated in some instances when the SMTP
server returns an error code. The error code is stored in the
`smtp_code' attribute of the error, and the `smtp_error' attribute
is set to the error message.
c C s% | | _ | | _ | | f | _ d S)N)� smtp_code�
smtp_error�args)�self�code�msgr r r �__init__b s z SMTPResponseException.__init__N)r r r r r r r r r r Y s c @ s" e Z d Z d Z d d � Z d S)r z�Sender address refused.
In addition to the attributes set by on all SMTPResponseException
exceptions, this sets `sender' to the string that the SMTP refused.
c C s1 | | _ | | _ | | _ | | | f | _ d S)N)r r �senderr )r r r r r r r r n s zSMTPSenderRefused.__init__N)r r r r r r r r r r g s c @ s" e Z d Z d Z d d � Z d S)r z�All recipient addresses refused.
The errors for each recipient are accessible through the attribute
'recipients', which is a dictionary of exactly the same sort as
SMTP.sendmail() returns.
c C s | | _ | f | _ d S)N)�
recipientsr )r r r r r r | s z SMTPRecipientsRefused.__init__N)r r r r r r r r r r t s c @ s e Z d Z d Z d S)r z'The SMTP server didn't accept the data.N)r r r r r r r r r � s c @ s e Z d Z d Z d S)r z&Error during connection establishment.N)r r r r r r r r r � s c @ s e Z d Z d Z d S)r
z"The server refused our HELO reply.N)r r r r r r r r r
� s c @ s e Z d Z d Z d S)r zvAuthentication error.
Most probably the server didn't accept the username/password
combination provided.
N)r r r r r r r r r � s c C sS t j j | � \ } } | | f d k rK | j � j d � rC | Sd | Sd | S)z�Quote a subset of the email addresses defined by RFC 821.
Should be able to handle anything email.utils.parseaddr can handle.
� �<z<%s>)r r )�email�utils� parseaddr�strip�
startswith)�
addrstring� displayname�addrr r r r � s c C s2 t j j | � \ } } | | f d k r. | S| S)Nr )r r )r" r# r$ )r' r( r) r r r �
_addr_only� s r* c C s" t j d d t j d t | � � S)z�Quote data for email.
Double leading '.', and change Unix newline '\n', or Mac '\r' into
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z(?m)^\.z..z(?:\r\n|\n|\r(?!\n)))�re�sub�CRLF)�datar r r r
� s c C s t j d d | � S)Ns (?m)^\.s ..)r+ r, )Zbindatar r r �_quote_periods� s r/ c C s t j d t | � S)Nz(?:\r\n|\n|\r(?!\n)))r+ r, r- )r. r r r � _fix_eols� s r0 FTc @ s> e Z d Z d Z d Z d Z d Z d Z d Z d Z e
Z d d d e j
d d d � Z d d � Z d
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� Z d d � Z d d � Z d d d d d � Z d d � Z d d d � Z d d � Z d d d � Z d d d � Z d d d � Z d! d" � Z d d# d$ � Z d% d& � Z d' d( � Z d) d* � Z g d+ d, � Z g d- d. � Z! d/ d0 � Z" d1 d2 � Z# e# Z$ d3 d4 � Z% d5 d6 � Z& d7 d8 d9 d: � Z' d d; d< � Z( d d= d> � Z) d d? d@ � Z* d7 d8 dA dB � Z+ d d d dC dD � Z, g g dE dF � Z- d d g i dG dH � Z. dI dJ � Z/ dK dL � Z0 d S)Mr a� This class manages a connection to an SMTP or ESMTP server.
SMTP Objects:
SMTP objects have the following attributes:
helo_resp
This is the message given by the server in response to the
most recent HELO command.
ehlo_resp
This is the message given by the server in response to the
most recent EHLO command. This is usually multiline.
does_esmtp
This is a True value _after you do an EHLO command_, if the
server supports ESMTP.
esmtp_features
This is a dictionary, which, if the server supports ESMTP,
will _after you do an EHLO command_, contain the names of the
SMTP service extensions this server supports, and their
parameters (if any).
Note, all extension names are mapped to lower case in the
dictionary.
See each method's docstrings for details. In general, there is a
method of the same name to perform each SMTP command. There is also a
method called 'sendmail' that will do an entire mail transaction.
r N�ehlor c
C s� | | _ | | _ i | _ d | _ | | _ | rp | j | | � \ } } | d k rp | j � t | | � � | d k r� | | _ nh t j
� } d | k r� | | _ nD d } y t j t j � � } Wn t j
k
r� Yn Xd | | _ d S)a Initialize a new instance.
If specified, `host' is the name of the remote host to which to
connect. If specified, `port' specifies the port to which to connect.
By default, smtplib.SMTP_PORT is used. If a host is specified the
connect method is called, and if it returns anything other than a
success code an SMTPConnectError is raised. If specified,
`local_hostname` is used as the FQDN of the local host in the HELO/EHLO
command. Otherwise, the local hostname is found using
socket.getfqdn(). The `source_address` parameter takes a 2-tuple (host,
port) for the socket to bind to as its source address before
connecting. If the host is '' and port is 0, the OS default behavior
will be used.
�ascii�� N�.z 127.0.0.1z[%s])�_host�timeout�esmtp_features�command_encoding�source_address�connect�closer �local_hostname�socketZgetfqdnZ
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SMTP.__init__c C s | S)Nr )r r r r � __enter__ s zSMTP.__enter__c G s_ zM y4 | j d � \ } } | d k r6 t | | � � Wn t k
rK Yn XWd | j � Xd S)NZQUIT�� )�docmdr r r; )r r r �messager r r �__exit__ s
z
SMTP.__exit__c C s
| | _ d S)z�Set the debug output level.
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N)�
debuglevel)r rE r r r �set_debuglevel s zSMTP.set_debuglevelc G sN | j d k r7 t t j j � j � | d t j �n t | d t j � d S)N� �file)rE �print�datetimeZnowZtime�sys�stderr)r r r r r � _print_debug' s (zSMTP._print_debugc C sG | j d k r+ | j d | | f | j � t j | | f | | j � S)Nr z connect: to)rE rM r9 r= �create_connection)r r> r? r6 r r r � _get_socket- s zSMTP._get_socket� localhostc C s> | r | | _ | r� | j d � | j d � k r� | j d � } | d k r� | d | � | | d d � } } y t | � } Wn t k
r� t d � � Yn X| s� | j } | j d k r� | j d | | f � | j | | | j
� | _ d | _ | j
� \ } } | j d k r4| j d t | � � | | f S)ap Connect to a host on a given port.
If the hostname ends with a colon (`:') followed by a number, and
there is no port specified, that suffix will be stripped off and the
number interpreted as the port number to use.
Note: This method is automatically invoked by __init__, if a host is
specified during instantiation.
�:r NrG znonnumeric portzconnect:)r9 �find�rfind�int�
ValueError�OSError� default_portrE rM rO r6 �sockrH �getreply�repr)r r> r? r9 �ir r r r r r: 5 s( % %
z SMTP.connectc C s� | j d k r% | j d t | � � t | d � r� | j r� t | t � r^ | j | j � } y | j j | � Wq� t
k
r� | j � t d � � Yq� Xn t d � � d S)zSend `s' to the server.r zsend:rX zServer not connectedzplease run connect() firstN)
rE rM rZ �hasattrrX �
isinstance�str�encoder8 ZsendallrV r; r )r �sr r r �sendW s
z SMTP.sendc C sC | d k r d | t f } n d | | t f } | j | � d S)z Send a command to the server.r z%s%sz%s %s%sN)r- ra )r �cmdr r^ r r r �putcmdi s z SMTP.putcmdc C s� g } | j d k r* | j j d � | _ xEy | j j t d � } WnE t k
r� } z% | j � t d t | � � � WYd d } ~ Xn X| s� | j � t d � � | j d k r� | j
d t | � � t | � t k r� | j � t
d d � � | j | d
d � j d � � | d d � } y t | � } Wn t k
rVd } PYn X| d d
� d
k r- Pq- Wd j | � } | j d k r�| j
d | | f � | | f S)a� Get a reply from the server.
Returns a tuple consisting of:
- server response code (e.g. '250', or such, if all goes well)
Note: returns -1 if it can't read response code.
- server response string corresponding to response code (multiline
responses are converted to a single, multiline string).
Raises SMTPServerDisconnected if end-of-file is reached.
N�rbrG z Connection unexpectedly closed: z Connection unexpectedly closedr zreply:i� zLine too long.� s
� � -s
z reply: retcode (%s); Msg: %a���)rH rX �makefile�readline�_MAXLINErV r; r r^ rE rM rZ �lenr �appendr% rT rU �join)r �resp�line�er Zerrcode�errmsgr r r rY q s>
#
z
SMTP.getreplyc C s | j | | � | j � S)z-Send a command, and return its response code.)rc rY )r rb r r r r rB � s z
SMTP.docmdc C s> | j d | p | j � | j � \ } } | | _ | | f S)zwSMTP 'helo' command.
Hostname to send for this command defaults to the FQDN of the local
host.
�helo)rc r< rY � helo_resp)r �namer r r r r rs � s z SMTP.heloc
C s� i | _ | j | j | p! | j � | j � \ } } | d
k rk t | � d k rk | j � t d � � | | _ | d k r� | | f Sd | _ t
| j t � s� t t
| j � � � | j j d � j d � } | d =x� | D]� } t j | � } | r2| j j d d � d | j d � d | j d <q� t j d
| � } | r� | j d � j � } | j | j d � d � j � } | d k r�| j j | d � d | | j | <q� | | j | <q� W| | f S)zx SMTP 'ehlo' command.
Hostname to send for this command defaults to the FQDN of the local
host.
rG r zServer not connected� zlatin-1�
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1" 'z SMTP.ehloc C s | j � | j k S)z7Does the server support a given SMTP service extension?)r� r7 )r Zoptr r r �has_extn� s z
SMTP.has_extnc C s | j d | � | j � d S)z;SMTP 'help' command.
Returns help text from server.�helprG )rc rY )r r r r r r� � s z SMTP.helpc C s d | _ | j d � S)z&SMTP 'rset' command -- resets session.r2 �rset)r8 rB )r r r r r� � s z SMTP.rsetc C s' y | j � Wn t k
r" Yn Xd S)a Internal 'rset' command which ignores any SMTPServerDisconnected error.
Used internally in the library, since the server disconnected error
should appear to the application when the *next* command is issued, if
we are doing an internal "safety" reset.
N)r� r )r r r r �_rset� s
z
SMTP._rsetc C s
| j d � S)z-SMTP 'noop' command -- doesn't do anything :>�noop)rB )r r r r r� s z SMTP.noopc C s� d } | rh | j rh t d d � | D� � rU | j d � rI d | _ n t d � � d d j | � } | j d d t | � | f � | j � S)
a8 SMTP 'mail' command -- begins mail xfer session.
This method may raise the following exceptions:
SMTPNotSupportedError The options parameter includes 'SMTPUTF8'
but the SMTPUTF8 extension is not supported by
the server.
r c s s! | ] } | j � d k Vq d S)�smtputf8N)r� )�.0�xr r r � <genexpr> s z SMTP.mail.<locals>.<genexpr>r� zutf-8z SMTPUTF8 not supported by serverry �mailz FROM:%s%s) r} �anyr� r8 r rn rc r rY )r r �options�
optionlistr r r r� s z SMTP.mailc C sR d } | r( | j r( d d j | � } | j d d t | � | f � | j � S)z;SMTP 'rcpt' command -- indicates 1 recipient for this mail.r ry �rcptzTO:%s%s)r} rn rc r rY )r Zrecipr� r� r r r r� s
z SMTP.rcptc C s | j d � | j � \ } } | j d k rD | j d | | f � | d k rb t | | � � n� t | t � r� t | � j d � } t | � } | d d � t
k r� | t
} | d t
} | j | � | j � \ } } | j d k r| j d | | f � | | f Sd S)
a� SMTP 'DATA' command -- sends message data to server.
Automatically quotes lines beginning with a period per rfc821.
Raises SMTPDataError if there is an unexpected reply to the
DATA command; the return value from this method is the final
response code received when the all data is sent. If msg
is a string, lone '\r' and '\n' characters are converted to
'\r\n' characters. If msg is bytes, it is transmitted as is.
r. r zdata:ib r2 � N� .���) rc rY rE rM r r] r^ r0 r_ r/ �bCRLFra )r r r �repl�qr r r r. ! s"
z SMTP.datac C s | j d t | � � | j � S)z5SMTP 'verify' command -- checks for address validity.�vrfy)rc r* rY )r �addressr r r �verify> s z SMTP.verifyc C s | j d t | � � | j � S)z.SMTP 'expn' command -- expands a mailing list.�expn)rc r* rY )r r� r r r r� E s z SMTP.expnc C s� | j d k r� | j d k r� d | j � d k o? d k n s� | j � \ } } d | k om d k n s� t | | � � d S)ab Call self.ehlo() and/or self.helo() if needed.
If there has been no previous EHLO or HELO command this session, this
method tries ESMTP EHLO first.
This method may raise the following exceptions:
SMTPHeloError The server didn't reply properly to
the helo greeting.
N�� r i+ )rt r| r1 rs r
)r r ro r r r �ehlo_or_helo_if_neededL s
& zSMTP.ehlo_or_helo_if_needed�initial_response_okTc C s� | j � } | r | � n d } | d k rk t | j d � d d �} | j d | d | � \ } } n | j d | � \ } } | d k r� t j | � } t | | � j d � d d �} | j | � \ } } | d
k r� | | f St | | � � d S) a� Authentication command - requires response processing.
'mechanism' specifies which authentication mechanism is to
be used - the valid values are those listed in the 'auth'
element of 'esmtp_features'.
'authobject' must be a callable object taking a single argument:
data = authobject(challenge)
It will be called to process the server's challenge response; the
challenge argument it is passed will be a bytes. It should return
bytes data that will be base64 encoded and sent to the server.
Keyword arguments:
- initial_response_ok: Allow sending the RFC 4954 initial-response
to the AUTH command, if the authentication methods supports it.
Nr2 Zeolr ZAUTHry iN �� � )r� r� )�upper�
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z SMTP.authc C s@ | d k r d S| j d t j | j j d � | d � j � S)zh Authobject to use with CRAM-MD5 authentication. Requires self.user
and self.password to be set.Nry r2 Zmd5)�user�hmacZHMAC�passwordr_ Z hexdigest)r r� r r r �
auth_cram_md5� s zSMTP.auth_cram_md5c C s d | j | j f S)ze Authobject to use with PLAIN authentication. Requires self.user and
self.password to be set.z %s %s)r� r� )r r� r r r �
auth_plain� s zSMTP.auth_plainc C s | d k r | j S| j Sd S)ze Authobject to use with LOGIN authentication. Requires self.user and
self.password to be set.N)r� r� )r r� r r r �
auth_login� s zSMTP.auth_loginc s+ | j � | j d � s% t d � � | j d j � � d d d g } � f d d � | D� } | sr t d � � | | | _ | _ x� | D]� } d | j � j d
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The arguments are:
- user: The user name to authenticate with.
- password: The password for the authentication.
Keyword arguments:
- initial_response_ok: Allow sending the RFC 4954 initial-response
to the AUTH command, if the authentication methods supports it.
If there has been no previous EHLO or HELO command this session, this
method tries ESMTP EHLO first.
This method will return normally if the authentication was successful.
This method may raise the following exceptions:
SMTPHeloError The server didn't reply properly to
the helo greeting.
SMTPAuthenticationError The server didn't accept the username/
password combination.
SMTPNotSupportedError The AUTH command is not supported by the
server.
SMTPException No suitable authentication method was
found.
rx z,SMTP AUTH extension not supported by server.zCRAM-MD5ZPLAINZLOGINc s" g | ] } | � k r | � q Sr r )r� rx )�advertised_authlistr r �
<listcomp>� s z SMTP.login.<locals>.<listcomp>z(No suitable authentication method found.Zauth_�-�_r� r� � N)r� r� )
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SMTP.loginc C s+ | j � | j d � s% t d � � | j d � \ } } | d k rt sX t d � � | d k r| | d k r| t d � � | d k r� | d k r� t d � � | d k r� t j d | d
| � } | j | j
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a� Puts the connection to the SMTP server into TLS mode.
If there has been no previous EHLO or HELO command this session, this
method tries ESMTP EHLO first.
If the server supports TLS, this will encrypt the rest of the SMTP
session. If you provide the keyfile and certfile parameters,
the identity of the SMTP server and client can be checked. This,
however, depends on whether the socket module really checks the
certificates.
This method may raise the following exceptions:
SMTPHeloError The server didn't reply properly to
the helo greeting.
�starttlsz+STARTTLS extension not supported by server.ZSTARTTLSr3 z&No SSL support included in this PythonNz4context and keyfile arguments are mutually exclusivez5context and certfile arguments are mutually exclusive�certfile�keyfile�server_hostnamer )r� r� r rB � _have_ssl� RuntimeErrorrU �ssl�_create_stdlib_context� wrap_socketrX r5 rH rt r| r7 r} r )r r� r� �contextro Zreplyr r r r� � s0
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SMTP.starttlsc C s� | j � g } t | t � r4 t | � j d � } | j r� | j d � rc | j d t | � � x | D] } | j | � qj W| j | | � \ } } | d k r� | d k r� | j
� n
| j � t | | | � � i }
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S)a| This command performs an entire mail transaction.
The arguments are:
- from_addr : The address sending this mail.
- to_addrs : A list of addresses to send this mail to. A bare
string will be treated as a list with 1 address.
- msg : The message to send.
- mail_options : List of ESMTP options (such as 8bitmime) for the
mail command.
- rcpt_options : List of ESMTP options (such as DSN commands) for
all the rcpt commands.
msg may be a string containing characters in the ASCII range, or a byte
string. A string is encoded to bytes using the ascii codec, and lone
\r and \n characters are converted to \r\n characters.
If there has been no previous EHLO or HELO command this session, this
method tries ESMTP EHLO first. If the server does ESMTP, message size
and each of the specified options will be passed to it. If EHLO
fails, HELO will be tried and ESMTP options suppressed.
This method will return normally if the mail is accepted for at least
one recipient. It returns a dictionary, with one entry for each
recipient that was refused. Each entry contains a tuple of the SMTP
error code and the accompanying error message sent by the server.
This method may raise the following exceptions:
SMTPHeloError The server didn't reply properly to
the helo greeting.
SMTPRecipientsRefused The server rejected ALL recipients
(no mail was sent).
SMTPSenderRefused The server didn't accept the from_addr.
SMTPDataError The server replied with an unexpected
error code (other than a refusal of
a recipient).
SMTPNotSupportedError The mail_options parameter includes 'SMTPUTF8'
but the SMTPUTF8 extension is not supported by
the server.
Note: the connection will be open even after an exception is raised.
Example:
>>> import smtplib
>>> s=smtplib.SMTP("localhost")
>>> tolist=["one@one.org","two@two.org","three@three.org","four@four.org"]
>>> msg = '''\
... From: Me@my.org
... Subject: testin'...
...
... This is a test '''
>>> s.sendmail("me@my.org",tolist,msg)
{ "three@three.org" : ( 550 ,"User unknown" ) }
>>> s.quit()
In the above example, the message was accepted for delivery to three
of the four addresses, and one was rejected, with the error code
550. If all addresses are accepted, then the method will return an
empty dictionary.
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