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Simple Mail Transfer Protocol implementation.
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Format an RFC-2822 compliant date string.
@param timeinfo: (optional) A sequence as returned by C{time.localtime()}
or C{time.gmtime()}. Default is now.
@param local: (optional) Indicates if the supplied time is local or
universal time, or if no time is given, whether now should be local or
universal time. Default is local, as suggested (SHOULD) by rfc-2822.
@returns: A L{bytes} representing the time and date in RFC-2822 format.
� i �< )r r z)%s, %02d %s %04d %02d:%02d:%02d %+03d%02d)�Mon�Tue�Wed�Thu�Fri�Sat�Sun� � ) �Jan�Feb�Mar�Apr�May�Jun�Jul�Aug�Sep�Oct�Nov�DecrK r � � � ) �time� localtime�gmtime�altzone�timezone�divmod�abs�intr. )�timeinfo�local�tz�tzhr�tzmin�tzsec� rt �3/usr/lib/python3/dist-packages/twisted/mail/smtp.pyrC � s:
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Return a globally unique random string in RFC 2822 Message-ID format
<datetime.pid.random@host.dom.ain>
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Turn an email address, possibly with realname part etc, into
a form suitable for and SMTP envelope.
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Source routes are stipped and ignored, UUCP-style bang-paths
and %-style routing are not parsed.
@type domain: C{bytes}
@ivar domain: The domain within which this address resides.
@type local: C{bytes}
@ivar local: The local ("user") portion of this address.
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Remove RFC-2821 quotes from address.
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SMTP server-side protocol.
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Validate the address from which the message originates.
@type helo: C{(bytes, bytes)}
@param helo: The argument to the HELO command and the client's IP
address.
@type origin: C{Address}
@param origin: The address the message is from
@rtype: C{Deferred} or C{Address}
@return: C{origin} or a C{Deferred} whose callback will be
passed C{origin}.
@raise SMTPBadSender: Raised of messages from this address are
not to be accepted.
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Translate cred exceptions into SMTP exceptions so that the
protocol code which invokes C{validateFrom} can properly report
the failure.
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Re-attempt from address validation.
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Validate the address for which the message is destined.
@type user: L{User}
@param user: The address to validate.
@rtype: no-argument callable
@return: A C{Deferred} which becomes, or a callable which
takes no arguments and returns an object implementing C{IMessage}.
This will be called and the returned object used to deliver the
message when it arrives.
@raise SMTPBadRcpt: Raised if messages to the address are
not to be accepted.
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SMTP client for sending emails.
After the client has connected to the SMTP server, it repeatedly calls
L{SMTPClient.getMailFrom}, L{SMTPClient.getMailTo} and
L{SMTPClient.getMailData} and uses this information to send an email.
It then calls L{SMTPClient.getMailFrom} again; if it returns L{None}, the
client will disconnect, otherwise it will continue as normal i.e. call
L{SMTPClient.getMailTo} and L{SMTPClient.getMailData} and send a new email.
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|�| _ d S )NrI r� r� ) r� r� r� �identity�toAddressesResult�successAddressesr� r r� r+ �LineLogr* )r� rx �logsizert rt ru r� � s
zSMTPClient.__init__c C s( | j r | j�d| � tj�| |� d S )Ns >>> )�debugr* r� r( � LineReceiverr� r� rt rt ru r� � s zSMTPClient.sendLinec C s( | � | j� dg| _| j| _| j| _d S r� )r� r� � _expected�smtpState_helo� _okresponse�smtpConnectionFailed�
_failresponser� rt rt ru r� � s zSMTPClient.connectionMadec C s | � d� d| _dS )z,
We are no longer connected
N)r� �mailFile�r� rB rt rt ru r� � s
zSMTPClient.connectionLostc C s | � tdd| j�� �� d S )Nr� s( Timeout waiting for SMTP server response)� sendErrorr! r* r� r� rt rt ru r� � s
��z SMTPClient.timeoutConnectionc
C s� | � � | jr| j�d| � d }z t|d d� �| _W n ty5 | �tdd|� �| j� � �� Y d S w |dd� dkr@d S | j
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|S ) Ns <<< rc r� z#Invalid response from SMTP server: r rK � 0rd � -�
)r� r} r* r� rm r� �
ValueErrorr� r r� r r r� r� r� )r� r� �whyrt rt ru r� � s6 ��� zSMTPClient.lineReceivedc C s | � t||| j�� �� d S rw )r� r r* r� �r� r� r rt rt ru r� s z SMTPClient.smtpConnectionFailedc C s4 |dk r| � t||| j�� �� d S | �||� d S )Nr )r� r r* r� �smtpState_msgSentr� rt rt ru �smtpTransferFailed s z SMTPClient.smtpTransferFailedc C s" | � d| j � t| _| j| _d S )Ns HELO )r� rx �SUCCESSr �smtpState_fromr� r� rt rt ru r� s zSMTPClient.smtpState_heloc C sP | � � | _| j| _| jd ur"| �dt| j� � dg| _| j| _d S | � � d S )Ns
MAIL FROM:r )
� getMailFromr� r� r� r� rB r � smtpState_tor� �_disconnectFromServerr� rt rt ru r� s
zSMTPClient.smtpState_fromc C s | j �� d S rw )r� r� r� rt rt ru �smtpState_disconnect r� z SMTPClient.smtpState_disconnectc C s@ t | �� �| _g | _g | _| j| _tdd�| _d | _ | �dd�S )Nr �� r� )
�iter� getMailTo� toAddressesry rz �smtpState_toOrDatar� �ranger � lastAddressr� rt rt ru r� s zSMTPClient.smtpState_toc C s� | j d ur| j�| j ||f� |tv r| j�| j � zt| j�| _ W n" tyD | jr<| �d� dg| _ | j
| _ Y d S | � |d� Y S w | �dt
| j � � d S )Ns DATAr1 zNo recipients accepteds RCPT TO:)r� ry r� r� rz rx r� �
StopIterationr� r �smtpState_datar� r� rB r� rt rt ru r� % s
�z SMTPClient.smtpState_toOrDatac sJ t �� }|�� �� � j� j�}� fdd�}|�� j|� t� _ � j
� _ d S )Nc s � � | j� d S rw )r� r )r r� rt ru �
ebTransfer: r� z-SMTPClient.smtpState_data.<locals>.ebTransfer) r( �
FileSender�beginFileTransfer� getMailDatar� �transformChunkr �finishedFileTransferr� r r� r� )r� r� r �sr) r� rt r� ru r� 6 s zSMTPClient.smtpState_datac C sN | j d ur| �||t| j�| j| j� g | _d | _ | �d� t| _| j | _
d S )Ns RSET) r� �sentMailr� rz ry r* r� r� r r� r� r� rt rt ru r� A s
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z SMTPClient.smtpState_msgSentc C s | � � |�dd��dd�S )a
Perform the necessary local to network newline conversion and escape
leading periods.
This method also resets the idle timeout so that as long as process is
being made sending the message body, the client will not time out.
r� s
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..)r� �replace)r� �chunkrt rt ru r� P s zSMTPClient.transformChunkc C s |dkrd}nd}| � |� d S )Nr� r� r� )r� )r� �lastsentr� rt rt ru r� [ s z SMTPClient.finishedFileTransferc C � t �)z<
Return the email address the mail is from.
��NotImplementedErrorr� rt rt ru r� d � zSMTPClient.getMailFromc C r� )z5
Return a list of emails to send to.
r� r� rt rt ru r� j r� zSMTPClient.getMailToc C r� )z�
Return file-like object containing data of message to be sent.
Lines in the file should be delimited by '\n'.
r� r� rt rt ru r� p s zSMTPClient.getMailDatac C s, t |t�r|js| �� dS | �dd� dS )a2
If an error occurs before a mail message is sent sendError will be
called. This base class method sends a QUIT if the error is
non-fatal and disconnects the connection.
@param exc: The SMTPClientError (or child class) raised
@type exc: C{SMTPClientError}
r� N)r� r �isFatalr� r� �r� rY rt rt ru r� x s zSMTPClient.sendErrorc C r� )a�
Called when an attempt to send an email is completed.
If some addresses were accepted, code and resp are the response
to the DATA command. If no addresses were accepted, code is -1
and resp is an informative message.
@param code: the code returned by the SMTP Server
@param resp: The string response returned from the SMTP Server
@param numOk: the number of addresses accepted by the remote host.
@param addresses: is a list of tuples (address, code, resp) listing
the response to each RCPT command.
@param log: is the SMTP session log
r� )r� r� r �numOk� addressesr* rt rt ru r� � s zSMTPClient.sentMailc C s" t dd�| _| j| _| �d� d S )Nr r� s QUIT)r� r r� r� r� r� rt rt ru r� � s z SMTPClient._disconnectFromServer)rw ) r� r� r� r� r} r� r� r� r� r
�connectionDoner� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� rt rt rt ru r< � s6
* r< c @ s� e Zd ZdZdZdZdZdZdZd0dd�Z dd� Z
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d1dd�Zd1dd�Zd1dd�Zd1dd�Zd1dd�Zdd� Zd d � Zd d � Zd d!� Zd"d#� Zd$d%� Zd&d'� Zd(d)� Zd*d+� Zd,d-� Z d.d/� Z dS )2r8 a
A client for sending emails over ESMTP.
@ivar heloFallback: Whether or not to fall back to plain SMTP if the C{EHLO}
command is not recognised by the server. If L{requireAuthentication} is
C{True}, or L{requireTransportSecurity} is C{True} and the connection is
not over TLS, this fallback flag will not be honored.
@type heloFallback: L{bool}
@ivar requireAuthentication: If C{True}, refuse to proceed if authentication
cannot be performed. Overrides L{heloFallback}.
@type requireAuthentication: L{bool}
@ivar requireTransportSecurity: If C{True}, refuse to proceed if the
transport cannot be secured. If the transport layer is not already
secured via TLS, this will override L{heloFallback}.
@type requireAuthentication: L{bool}
@ivar context: The context factory to use for STARTTLS, if desired.
@type context: L{IOpenSSLClientConnectionCreator}
@ivar _tlsMode: Whether or not the connection is over TLS.
@type _tlsMode: L{bool}
TFNc O s. t j| g|�R i |�� g | _|| _|| _d S rw )r< r� �authenticators�secret�context)r� r� �contextFactory�args�kwrt rt ru r� � s
zESMTPClient.__init__c C s2 |dkrt jdtdd� | jS td| jj|f ��)N�tlsMode�StlsMode attribute of twisted.mail.smtp.ESMTPClient is deprecated since Twisted 13.0rV ��category�
stacklevelz %s instance has no attribute %r)�warnings�warn�DeprecationWarning�_tlsModer� r� r� )r� �namert rt ru � __getattr__� s ����zESMTPClient.__getattr__c C s0 |dkrt jdtdd� || _d S || j|< d S )Nr� r� rV r� )r� r� r� r� r� )r� r� r rt rt ru � __setattr__� s �
zESMTPClient.__setattr__r� c C � | � tdd| j�� �� dS )a�
Fail because authentication is required, but the server does not support
ESMTP, which is required for authentication.
@param code: The server status code from the most recently received
server message.
@type code: L{int}
@param resp: The server status response from the most recently received
server message.
@type resp: L{bytes}
� s, Server does not support ESMTP AuthenticationN)r� r r* r� r� rt rt ru �esmtpEHLORequired� s
��z ESMTPClient.esmtpEHLORequiredc C sP g }| j D ] }|�|�� �� � qdd�|� }| �tdd| | j�� �� dS )a�
Fail because authentication is required, but the server does not support
any schemes we support.
@param code: The server status code from the most recently received
server message.
@type code: L{int}
@param resp: The server status response from the most recently received
server message.
@type resp: L{bytes}
s [%s]s , r� s8 Server does not support Client Authentication schemes %sN) r� r� �getNamer� r� r� r r* r� )r� r� r �tmp�a�authrt rt ru �esmtpAUTHRequired� s
��z ESMTPClient.esmtpAUTHRequiredc C r� )a`
Fail because TLS is required and the server does not support it.
@param code: The server status code from the most recently received
server message.
@type code: L{int}
@param resp: The server status response from the most recently received
server message.
@type resp: L{bytes}
r� s: Server does not support secure communication via TLS / SSLN)r� r# r* r� r� rt rt ru �esmtpTLSRequired s ��z ESMTPClient.esmtpTLSRequiredc C s | � t|d| j�� �� dS )a[
Fail because the TLS handshake wasn't able to be completed.
@param code: The server status code from the most recently received
server message.
@type code: L{int}
@param resp: The server status response from the most recently received
server message.
@type resp: L{bytes}
s( Could not complete the SSL/TLS handshakeN)r� r0 r* r� r� rt rt ru �esmtpTLSFailed& s
��zESMTPClient.esmtpTLSFailedc C � | � t||| j�� �� dS )aM
Fail because the authentication was rejected.
@param code: The server status code from the most recently received
server message.
@type code: L{int}
@param resp: The server status response from the most recently received
server message.
@type resp: L{bytes}
N)r� r r* r� r� rt rt ru �esmtpAUTHDeclined8 � z ESMTPClient.esmtpAUTHDeclinedc C r� )ab
Fail because the server sent a malformed authentication challenge.
@param code: The server status code from the most recently received
server message.
@type code: L{int}
@param resp: The server status response from the most recently received
server message.
@type resp: L{bytes}
r sR Login failed because the SMTP Server returned a malformed Authentication ChallengeN�r� r r* r� r� rt rt ru �esmtpAUTHMalformedChallengeF s ��z'ESMTPClient.esmtpAUTHMalformedChallengec C r� )aP
Fail because of some other authentication error.
@param code: The server status code from the most recently received
server message.
@type code: L{int}
@param resp: The server status response from the most recently received
server message.
@type resp: L{bytes}
Nr� r� rt rt ru �esmtpAUTHServerError[ r� z ESMTPClient.esmtpAUTHServerErrorc C s | j �|� dS )a�
Registers an Authenticator with the ESMTPClient. The ESMTPClient will
attempt to login to the SMTP Server in the order the Authenticators are
registered. The most secure Authentication mechanism should be
registered first.
@param auth: The Authentication mechanism to register
@type auth: L{IClientAuthentication} implementor
@return: L{None}
N)r� r� )r� r� rt rt ru �registerAuthenticatori s z!ESMTPClient.registerAuthenticatorc C s$ t �| j�| _t�| � | j| _dS )zp
Called when a connection has been made, and triggers sending an C{EHLO}
to the server.
N)r
�
providedByr� r� r< r� �esmtpState_ehlor� r� rt rt ru r� w s
zESMTPClient.connectionMadec C sT t | _| j| _| j| _| jrd}n| j}| jr | j s |s | j
| _| � d| j � dS )a�
Send an C{EHLO} to the server.
If L{heloFallback} is C{True}, and there is no requirement for TLS or
authentication, the client will fall back to basic SMTP.
@param code: The server status code from the most recently received
server message.
@type code: L{int}
@param resp: The server status response from the most recently received
server message.
@type resp: L{bytes}
@return: L{None}
Fs EHLO N)
r� r �esmtpState_serverConfigr� r� r� r� �requireTransportSecurity� heloFallback�requireAuthenticationr� r� rx )r� r� r �needTLSrt rt ru r� � s zESMTPClient.esmtpState_ehloc C sZ i }|� � D ] }|�dd�}t|�dkr |d ||d < qd||d < q| �|||� dS )z�
Handle a positive response to the I{EHLO} command by parsing the
capabilities in the server's response and then taking the most
appropriate next step towards entering a mail transaction.
NrK r )r� r� r� �tryTLS)r� r� r �itemsr� r rt rt ru r� � s z#ESMTPClient.esmtpState_serverConfigc C sn | j }| jo d|v }| j}|s|s |s | �|||� dS |r1dg| _| j| _| j| _| � d� dS | �
� dS )a�
Take a necessary step towards being able to begin a mail transaction.
The step may be to ask the server to being a TLS session. If TLS is
already in use or not necessary and not available then the step may be
to authenticate with the server. If TLS is necessary and not available,
fail the mail transmission attempt.
This is an internal helper method.
@param code: The server status code from the most recently received
server message.
@type code: L{int}
@param resp: The server status response from the most recently received
server message.
@type resp: L{bytes}
@param items: A mapping of ESMTP extensions offered by the server. Keys
are extension identifiers and values are the associated values.
@type items: L{dict} mapping L{bytes} to L{bytes}
@return: L{None}
� STARTTLSr� N) r� r� r� � authenticater �esmtpState_starttlsr� r� r� r� r� )r� r� r r� �hasTLS�canTLS�mustTLSrt rt ru r� � s % zESMTPClient.tryTLSc C sN z | j �| j� d| _W n ty t�� | �d� Y nw | �||� dS )z�
Handle a positive response to the I{STARTTLS} command by starting a new
TLS session on C{self.transport}.
Upon success, re-handshake with the server to discover what capabilities
it has when TLS is in use.
Tr N) r� �startTLSr� r� r- r* r r� r� r� rt rt ru r� � s
�z ESMTPClient.esmtpState_starttlsc
C s� | j rk|�d�rk|d �� }i }|D ]}d||�� < q| jD ]L}|�� �� }||v rj|| _|dkrT| j| _| j | _
dg| _ t �
| j�| j d��} | �d|| f � d S dg| _ | j| _| j| _
| �d| � d S q | jrt| �� d S | �||� d S )N� AUTHrK � PLAIN�� s
AUTH %s %s�N s AUTH )r� �getr� r� r� r� � _authinfor� r� �_esmtpState_plainAuthr� r �base64� b64encode�challengeResponser� �esmtpState_challenger� r� r� )
r� r� r r� �schemes�
tmpSchemesr� r� r� � challengert rt ru r� � s6
� �� zESMTPClient.authenticatec C s@ | j | _| j| _dg| _t�| j�| j d��}| �
d| � d S )Nr� rV s AUTH PLAIN ) r� r� r� r� r r� r� r� r� r� r� )r� r� r r� rt rt ru r� s
z!ESMTPClient._esmtpState_plainAuthc C s | � | j|� d S rw )�
_authResponser� r� rt rt ru r� $ s z ESMTPClient.esmtpState_challengec C s| | j | _zt�|�}W n tjy# | �d� | j| _| j| _Y d S w |� | j
|�}ddg| _ | j | _| �t�
|�� d S )N� *r� r� )r� r� r� � b64decode�binascii�Errorr� r� r� r� r� r � smtpState_maybeAuthenticatedr� )r� r� r� r rt rt ru r� ' s
�
zESMTPClient._authResponsec C s. |dkr| ` | �||� dS | �| j |� dS )z�
Called to handle the next message from the server after sending a
response to a SASL challenge. The server response might be another
challenge or it might indicate authentication has succeeded.
r� N)r� r� r� r� rt rt ru r� 6 s z(ESMTPClient.smtpState_maybeAuthenticatedrw )r� N) r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� rt rt rt ru r8 � s8
3' r8 c @ s~ e Zd ZdZdZdZdZddd�Zdd� Zdd� Z d d
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dd� Zdd� Zdd� Zdd� Zdd� ZdS ) r7 NFc C s, t �| � |d u r i }|| _d| _|| _d S )NF)r; r� � challengers�
authenticated�ctx)r� �chalr� rt rt ru r� L s
zESMTP.__init__c C s. t �| � t�| j�| _| jo| jd u| _d S rw )r; r� r r� r� � canStartTLSr� r� rt rt ru r� T s
zESMTP.connectionMadec C s t �| �d S )Ns ESMTP)r; r� r� rt rt ru r� Y r� zESMTP.greetingc C s* dt | j�� �i}| jr| jsd|d< |S )z�
SMTP service extensions
@return: the SMTP service extensions that are supported.
@rtype: L{dict} with L{bytes} keys and a value of either L{None} or a
L{list} of L{bytes}.
r� Nr� )r� r� �keysr� �
startedTLS)r� �extrt rt ru �
extensions\ s zESMTP.extensionsc C s4 t |�}t�| |�}|d u rt| d|�� d �}|S )N�ext_)r- r; r� r� r� )r� r� r rt rt ru r� i s
zESMTP.lookupMethodc C sT g }| � � �� D ] \}}|d ur |r |�|d d�|� � q|�|� qd�|�S )N� r� )r r� r� r� )r� �r�c�vrt rt ru �listExtensionsq s �
zESMTP.listExtensionsc C s\ | j �� j}t|t�s|�d�}||f| _d | _g | _| � d| jd | d | �
� � d S )Nr r r s , nice to meet you
) r� r� r� r� r� r� r� r� r� r� r )r� r r� rt rt ru �do_EHLO} s$
�����z
ESMTP.do_EHLOc C sV | j r | �dd� d S | jr#| jr#| �dd� | j�| j� d| _ d S | �dd� d S )Nr s TLS already negotiatedr� s Begin TLS negotiation nowT�� s TLS not available)r r� r� r� r� r� r rt rt ru � ext_STARTTLS� s
zESMTP.ext_STARTTLSc C s� | j r | �dd� d S |�d d�}| j�|d �� dd� �� }|s)| �dd� d S t| _|| _t |�dkr>|�
� |d }nd }| � |� d S ) Nr s Already authenticatedrK r c S s d S rw rt rt rt rt ru rz � s z ESMTP.ext_AUTH.<locals>.<lambda>i� s Unrecognized authentication type) r� r� r� r� r� r� r� r� rQ r� � getChallenge�
state_AUTH)r� r r� r� rt rt ru �ext_AUTH� s
zESMTP.ext_AUTHc C s t �| |�}d| _|S )zz
Save the state resulting from a successful cred login and mark this
connection as authenticated.
T)r; rU r� )r� � loginInforM rt rt ru �_cbAuthenticated� s zESMTP._cbAuthenticatedc C s@ d| _ |�tjj�r| �dd� dS t�|d� | �dd� dS )a
Handle cred login errors by translating them to the SMTP authenticate
failed. Translate all other errors into a generic SMTP error code and
log the failure for inspection. Stop all errors from propagating.
@param reason: Reason for failure.
Ni s Authentication failedzSMTP authentication failurer r )r� r r r rV r� r* r r� rt rt ru �_ebAuthenticated� s
zESMTP._ebAuthenticatedc s4 � j du r� �dd� t� _dS |du r&� j�� }t�|�}� �d|� dS |dkr8� �dd� d� _t� _dS zt�|�}W n t t
j fyX � �dd� d� _t� _Y dS w � j� |� � j�
� rv� j�� }t�|�}� �d|� dS t� _� j �� jdtt�}|�� j� |�� fd d
�� |�� j� dS ) a+
Handle one step of challenge/response authentication.
@param response: The text of a response. If None, this
function has been called as a result of an AUTH command with
no initial response. A response of '*' aborts authentication,
as per RFC 2554.
Nr
s Temporary authentication failurer� r� r s Authentication aborteds' Syntax error in parameters or argumentsc s � � dd�S )Nr� s Authentication successful.r� )�ignr� rt ru rz � s z"ESMTP.state_AUTH.<locals>.<lambda>)r_ r� r� r� rQ r r� r� r� � TypeErrorr� r� � setResponse�moreChallengesr` r& r% rH r �
addErrbackr )r� �responser� �encoded�uncoded�codedrM rt r� ru r
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�zESMTP.state_AUTHr� )r� r� r� r� r� r r� r� r� r� r r� r r r r r r r
rt rt rt ru r7 E s"
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Utility class for sending emails easily.
Use with SMTPSenderFactory or ESMTPSenderFactory.
r c C s | j s d| _ t| jj�S d S �NrK )�doner� �factoryr r� rt rt ru r� s zSenderMixin.getMailFromc C � | j jS rw )r �toEmailr� rt rt ru r� � zSenderMixin.getMailToc C r rw )r �filer� rt rt ru r� r zSenderMixin.getMailDatac C sT t �| |� | jjdks|js&|jdkr|jdk s(d| j_| jj�|� d S d S d S )Nr i� r� T) r< r� r �retries�retryr� � sendFinishedrM �errbackr� rt rt ru r� s ��zSenderMixin.sendErrorc C s� d| j _|tvrBg }|D ]\}}} |tvr'|�|d td|f � d | � q |�|�� � t||d�|�|�}
| j j� |
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||f� d S )NTr z%03dr r� ) r r$ r� r� r. r� r r� rM r% �callback) r� r� r r� r� r* �errlogr� �acode�aresprY rt rt ru r� ! s ��zSenderMixin.sentMailN)
r� r� r� r� r r� r� r� r� r� rt rt rt ru r6 � s r6 c @ s e Zd ZdZdS )r> z|
SMTP protocol that sends a single email based on information it
gets from its factory, a L{SMTPSenderFactory}.
N)r� r� r� r� rt rt rt ru r> 4 s r> c @ s` e Zd ZU dZeZeZee e
d< ddd�Z dd� Z d d
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d� Zdd� Zdd� ZdS )r? a�
Utility factory for sending emails easily.
@type currentProtocol: L{SMTPSender}
@ivar currentProtocol: The current running protocol returned by
L{buildProtocol}.
@type sendFinished: C{bool}
@ivar sendFinished: When the value is set to True, it means the message has
been sent or there has been an unrecoverable error or the sending has
been cancelled. The default value is False.
r
re Nc C s� t |t�sJ �t |t�r|�d�g}n!t |t�r |g}ng }|D ]}t |t�s,|�d�}|�|� q |}t|�| _t|�| _ || _
|| _ || _ | j �
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@param fromEmail: The RFC 2821 address from which to send this
message.
@param toEmail: A sequence of RFC 2821 addresses to which to
send this message.
@param file: A file-like object containing the message to send.
@param deferred: A Deferred to callback or errback when sending
of this message completes.
@type deferred: L{defer.Deferred}
@param retries: The number of times to retry delivery of this
message.
@param timeout: Period, in seconds, for which to wait for
server responses, or None to wait forever.
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Utility factory for sending emails easily.
@type currentProtocol: L{ESMTPSender}
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L{buildProtocol}.
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Send an email.
This interface is intended to be a replacement for L{smtplib.SMTP.sendmail}
and related methods. To maintain backwards compatibility, it will fall back
to plain SMTP, if ESMTP support is not available. If ESMTP support is
available, it will attempt to provide encryption via STARTTLS and
authentication if a secret is provided.
@param smtphost: The host the message should be sent to.
@type smtphost: L{bytes}
@param from_addr: The (envelope) address sending this mail.
@type from_addr: L{bytes}
@param to_addrs: A list of addresses to send this mail to. A string will
be treated as a list of one address.
@type to_addrs: L{list} of L{bytes} or L{bytes}
@param msg: The message, including headers, either as a file or a string.
File-like objects need to support read() and close(). Lines must be
delimited by '\n'. If you pass something that doesn't look like a file,
we try to convert it to a string (so you should be able to pass an
L{email.message} directly, but doing the conversion with
L{email.generator} manually will give you more control over the process).
@param senderDomainName: Name by which to identify. If None, try to pick
something sane (but this depends on external configuration and may not
succeed).
@type senderDomainName: L{bytes}
@param port: Remote port to which to connect.
@type port: L{int}
@param username: The username to use, if wanting to authenticate.
@type username: L{bytes} or L{unicode}
@param password: The secret to use, if wanting to authenticate. If you do
not specify this, SMTP authentication will not occur.
@type password: L{bytes} or L{unicode}
@param requireTransportSecurity: Whether or not STARTTLS is required.
@type requireTransportSecurity: L{bool}
@param requireAuthentication: Whether or not authentication is required.
@type requireAuthentication: L{bool}
@param reactor: The L{reactor} used to make the TCP connection.
@rtype: L{Deferred}
@returns: A cancellable L{Deferred}, its callback will be called if a
message is sent to ANY address, the errback if no message is sent. When
the C{cancel} method is called, it will stop retrying and disconnect
the connection immediately.
The callback will be called with a tuple (numOk, addresses) where numOk
is the number of successful recipient addresses and addresses is a list
of tuples (address, code, resp) giving the response to the RCPT command
for each address.
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Cancel the L{twisted.mail.smtp.sendmail} call, tell the factory not to
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