email: make EmailClient compatible with mylib.mylib.Config
This commit is contained in:
Benjamin Renard
parent
ba4e85be50
commit
fdf68a8ee2
1 changed files with 108 additions and 53 deletions
161
mylib/email.py
161
mylib/email.py
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@ -13,58 +13,98 @@ from email.encoders import encode_base64
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from mako.template import Template as MakoTemplate
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from mylib.config import ConfigurableObject
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from mylib.config import BooleanOption
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from mylib.config import IntegerOption
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from mylib.config import PasswordOption
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from mylib.config import StringOption
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log = logging.getLogger(__name__)
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class EmailClient(object): # pylint: disable=useless-object-inheritance,too-many-instance-attributes
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class EmailClient(ConfigurableObject): # pylint: disable=useless-object-inheritance,too-many-instance-attributes
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"""
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Email client
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This class abstract all interactions with the SMTP server.
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"""
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smtp_host = None
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smtp_port = None
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smtp_ssl = None
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smtp_tls = None
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smtp_user = None
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smtp_password = None
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smtp_debug = None
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sender_name = None
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sender_email = None
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catch_all_addr = False
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just_try = False
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encoding = 'utf-8'
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_config_name = 'email'
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_config_comment = 'Email'
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_defaults = {
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'smtp_host': 'localhost',
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'smtp_port': 25,
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'smtp_ssl': False,
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'smtp_tls': False,
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'smtp_user': None,
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'smtp_password': None,
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'smtp_debug': False,
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'sender_name': 'No reply',
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'sender_email': 'noreply@localhost',
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'encoding': 'utf-8',
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'catch_all_addr': None,
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'just_try': False,
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}
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templates = dict()
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def __init__(self, smtp_host=None, smtp_port=None, smtp_ssl=None, smtp_tls=None, smtp_user=None, smtp_password=None, smtp_debug=None,
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sender_name=None, sender_email=None, catch_all_addr=None, just_try=None, encoding=None, templates=None):
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self.smtp_host = smtp_host if smtp_host else 'localhost'
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self.smtp_port = smtp_port if smtp_port else 25
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self.smtp_ssl = bool(smtp_ssl)
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self.smtp_tls = bool(smtp_tls)
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self.smtp_user = smtp_user if smtp_user else None
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self.smtp_password = smtp_password if smtp_password else None
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self.smtp_debug = bool(smtp_debug)
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self.sender_name = sender_name if sender_name else "No reply"
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self.sender_email = sender_email if sender_email else "noreply@localhost"
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self.catch_all_addr = catch_all_addr if catch_all_addr else False
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self.just_try = just_try if just_try else False
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def __init__(self, templates=None, **kwargs):
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super().__init__(**kwargs)
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assert templates is None or isinstance(templates, dict)
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self.templates = templates if templates else dict()
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if encoding:
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self.encoding = encoding
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def configure(self, use_smtp=True, just_try=True, ** kwargs): # pylint: disable=arguments-differ
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""" Configure options on registered mylib.Config object """
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section = super().configure(**kwargs)
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def forge_message(self, rcpt_to, subject=None, html_body=None, text_body=None, attachment_files=None,
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attachment_payloads=None, sender_name=None, sender_email=None, encoding=None,
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template=None, **template_vars): # pylint: disable=too-many-arguments,too-many-locals
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if use_smtp:
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section.add_option(
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StringOption, 'smtp_host', default=self._defaults['smtp_host'],
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comment='SMTP server hostname/IP address')
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section.add_option(
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IntegerOption, 'smtp_port', default=self._defaults['smtp_port'],
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comment='SMTP server port')
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section.add_option(
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BooleanOption, 'smtp_ssl', default=self._defaults['smtp_ssl'],
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comment='Use SSL on SMTP server connection')
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section.add_option(
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BooleanOption, 'smtp_tls', default=self._defaults['smtp_tls'],
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comment='Use TLS on SMTP server connection')
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section.add_option(
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StringOption, 'smtp_user', default=self._defaults['smtp_user'],
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comment='SMTP authentication username')
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section.add_option(
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PasswordOption, 'smtp_password', default=self._defaults['smtp_password'],
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comment='SMTP authentication password (set to "keyring" to use XDG keyring)',
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username_option='smtp_user', keyring_value='keyring')
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section.add_option(
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BooleanOption, 'smtp_debug', default=self._defaults['smtp_debug'],
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comment='Enable SMTP debugging')
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section.add_option(
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StringOption, 'sender_name', default=self._defaults['sender_name'],
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comment='Sender name')
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section.add_option(
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StringOption, 'sender_email', default=self._defaults['sender_email'],
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comment='Sender email address')
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section.add_option(
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StringOption, 'encoding', default=self._defaults['encoding'],
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comment='Email encoding')
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section.add_option(
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StringOption, 'catch_all_addr', default=self._defaults['catch_all_addr'],
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comment='Catch all sent emails to this specified email address')
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if just_try:
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section.add_option(
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BooleanOption, 'just_try', default=self._defaults['just_try'],
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comment='Just-try mode: do not really send emails')
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return section
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def forge_message(self, rcpt_to, subject=None, html_body=None, text_body=None, # pylint: disable=too-many-arguments,too-many-locals
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attachment_files=None, attachment_payloads=None, sender_name=None,
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sender_email=None, encoding=None, template=None, **template_vars):
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"""
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Forge a message
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@ -83,11 +123,16 @@ class EmailClient(object): # pylint: disable=useless-object-inheritance,too-man
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"""
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msg = MIMEMultipart('alternative')
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msg['To'] = email.utils.formataddr(rcpt_to) if isinstance(rcpt_to, tuple) else rcpt_to
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msg['From'] = email.utils.formataddr((sender_name or self.sender_name, sender_email or self.sender_email))
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msg['From'] = email.utils.formataddr(
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(
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sender_name or self._get_option('sender_name'),
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sender_email or self._get_option('sender_email')
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)
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)
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if subject:
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msg['Subject'] = subject.format(**template_vars)
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msg['Date'] = email.utils.formatdate(None, True)
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encoding = encoding if encoding else self.encoding
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encoding = encoding if encoding else self._get_option('encoding')
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if template:
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assert template in self.templates, "Unknwon template %s" % template
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# Handle subject from template
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@ -149,44 +194,54 @@ class EmailClient(object): # pylint: disable=useless-object-inheritance,too-man
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"""
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msg = msg if msg else self.forge_message(rcpt_to, subject, **forge_args)
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if just_try or self.just_try:
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if just_try or self._get_option('just_try'):
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log.debug('Just-try mode: do not really send this email to %s (subject="%s")', rcpt_to, subject or msg.get('subject', 'No subject'))
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return True
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if self.catch_all_addr:
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catch_addr = self.catch_all_addr
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catch_addr = self._get_option('catch_all_addr')
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if catch_addr:
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log.debug('Catch email originaly send to %s to %s', rcpt_to, catch_addr)
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rcpt_to = catch_addr
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smtp_host = self._get_option('smtp_host')
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smtp_port = self._get_option('smtp_port')
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try:
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if self.smtp_ssl:
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logging.info("Establish SSL connection to server %s:%s", self.smtp_host, self.smtp_port)
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server = smtplib.SMTP_SSL(self.smtp_host, self.smtp_port)
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if self._get_option('smtp_ssl'):
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logging.info("Establish SSL connection to server %s:%s", smtp_host, smtp_port)
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server = smtplib.SMTP_SSL(smtp_host, smtp_port)
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else:
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logging.info("Establish connection to server %s:%s", self.smtp_host, self.smtp_port)
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server = smtplib.SMTP(self.smtp_host, self.smtp_port)
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if self.smtp_tls:
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logging.info("Establish connection to server %s:%s", smtp_host, smtp_port)
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server = smtplib.SMTP(smtp_host, smtp_port)
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if self._get_option('smtp_tls'):
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logging.info('Start TLS on SMTP connection')
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server.starttls()
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except smtplib.SMTPException:
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log.error('Error connecting to SMTP server %s:%s', self.smtp_host, self.smtp_port, exc_info=True)
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log.error('Error connecting to SMTP server %s:%s', smtp_host, smtp_port, exc_info=True)
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return False
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if self.smtp_debug:
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if self._get_option('smtp_debug'):
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server.set_debuglevel(True)
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if self.smtp_user and self.smtp_password:
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smtp_user = self._get_option('smtp_user')
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smtp_password = self._get_option('smtp_password')
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if smtp_user and smtp_password:
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try:
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log.info('Try to authenticate on SMTP connection as %s', self.smtp_user)
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server.login(self.smtp_user, self.smtp_password)
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log.info('Try to authenticate on SMTP connection as %s', smtp_user)
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server.login(smtp_user, smtp_password)
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except smtplib.SMTPException:
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log.error('Error authenticating on SMTP server %s:%s with user %s', self.smtp_host, self.smtp_port, self.smtp_user, exc_info=True)
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log.error(
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'Error authenticating on SMTP server %s:%s with user %s',
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smtp_host, smtp_port, smtp_user, exc_info=True)
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return False
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error = False
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try:
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log.info('Sending email to %s', rcpt_to)
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server.sendmail(self.sender_email, [rcpt_to[1] if isinstance(rcpt_to, tuple) else rcpt_to], msg.as_string())
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server.sendmail(
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self._get_option('sender_email'),
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[rcpt_to[1] if isinstance(rcpt_to, tuple) else rcpt_to],
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msg.as_string()
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)
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except smtplib.SMTPException:
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error = True
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log.error('Error sending email to %s', rcpt_to, exc_info=True)
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