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+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2021 Chris Caron <[email protected]>
+# All rights reserved.
+#
+# This code is licensed under the MIT License.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files(the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions :
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+# Signup @ https://smtp2go.com (free accounts available)
+#
+# From your dashboard, you can generate an API Key if you haven't already
+# at https://app.smtp2go.com/settings/apikeys/
+
+# The API Key from here which will look something like:
+# api-60F0DD0AB5BA11ABA421F23C91C88EF4
+#
+# Knowing this, you can buid your smtp2go url as follows:
+# smtp2go://{user}@{domain}/{apikey}
+# smtp2go://{user}@{domain}/{apikey}/{email}
+#
+# You can email as many addresses as you want as:
+# smtp2go://{user}@{domain}/{apikey}/{email1}/{email2}/{emailN}
+#
+# The {user}@{domain} effectively assembles the 'from' email address
+# the email will be transmitted from. If no email address is specified
+# then it will also become the 'to' address as well.
+#
+import base64
+import requests
+from json import dumps
+from email.utils import formataddr
+from .NotifyBase import NotifyBase
+from ..common import NotifyType
+from ..common import NotifyFormat
+from ..utils import parse_emails
+from ..utils import parse_bool
+from ..utils import is_email
+from ..utils import validate_regex
+from ..AppriseLocale import gettext_lazy as _
+
+SMTP2GO_HTTP_ERROR_MAP = {
+ 429: 'To many requests.',
+}
+
+
+class NotifySMTP2Go(NotifyBase):
+ """
+ A wrapper for SMTP2Go Notifications
+ """
+
+ # The default descriptive name associated with the Notification
+ service_name = 'SMTP2Go'
+
+ # The services URL
+ service_url = 'https://www.smtp2go.com/'
+
+ # All notification requests are secure
+ secure_protocol = 'smtp2go'
+
+ # SMTP2Go advertises they allow 300 requests per minute.
+ # 60/300 = 0.2
+ request_rate_per_sec = 0.20
+
+ # A URL that takes you to the setup/help of the specific protocol
+ setup_url = 'https://github.com/caronc/apprise/wiki/Notify_smtp2go'
+
+ # Notify URL
+ notify_url = 'https://api.smtp2go.com/v3/email/send'
+
+ # Default Notify Format
+ notify_format = NotifyFormat.HTML
+
+ # The maximum amount of emails that can reside within a single
+ # batch transfer
+ default_batch_size = 100
+
+ # Define object templates
+ templates = (
+ '{schema}://{user}@{host}:{apikey}/',
+ '{schema}://{user}@{host}:{apikey}/{targets}',
+ )
+
+ # Define our template tokens
+ template_tokens = dict(NotifyBase.template_tokens, **{
+ 'user': {
+ 'name': _('User Name'),
+ 'type': 'string',
+ 'required': True,
+ },
+ 'host': {
+ 'name': _('Domain'),
+ 'type': 'string',
+ 'required': True,
+ },
+ 'apikey': {
+ 'name': _('API Key'),
+ 'type': 'string',
+ 'private': True,
+ 'required': True,
+ },
+ 'targets': {
+ 'name': _('Target Emails'),
+ 'type': 'list:string',
+ },
+ })
+
+ # Define our template arguments
+ template_args = dict(NotifyBase.template_args, **{
+ 'name': {
+ 'name': _('From Name'),
+ 'type': 'string',
+ 'map_to': 'from_name',
+ },
+ 'to': {
+ 'alias_of': 'targets',
+ },
+ 'cc': {
+ 'name': _('Carbon Copy'),
+ 'type': 'list:string',
+ },
+ 'bcc': {
+ 'name': _('Blind Carbon Copy'),
+ 'type': 'list:string',
+ },
+ 'batch': {
+ 'name': _('Batch Mode'),
+ 'type': 'bool',
+ 'default': False,
+ },
+ })
+
+ # Define any kwargs we're using
+ template_kwargs = {
+ 'headers': {
+ 'name': _('Email Header'),
+ 'prefix': '+',
+ },
+ }
+
+ def __init__(self, apikey, targets, cc=None, bcc=None, from_name=None,
+ headers=None, batch=False, **kwargs):
+ """
+ Initialize SMTP2Go Object
+ """
+ super(NotifySMTP2Go, self).__init__(**kwargs)
+
+ # API Key (associated with project)
+ self.apikey = validate_regex(apikey)
+ if not self.apikey:
+ msg = 'An invalid SMTP2Go API Key ' \
+ '({}) was specified.'.format(apikey)
+ self.logger.warning(msg)
+ raise TypeError(msg)
+
+ # Validate our username
+ if not self.user:
+ msg = 'No SMTP2Go username was specified.'
+ self.logger.warning(msg)
+ raise TypeError(msg)
+
+ # Acquire Email 'To'
+ self.targets = list()
+
+ # Acquire Carbon Copies
+ self.cc = set()
+
+ # Acquire Blind Carbon Copies
+ self.bcc = set()
+
+ # For tracking our email -> name lookups
+ self.names = {}
+
+ self.headers = {}
+ if headers:
+ # Store our extra headers
+ self.headers.update(headers)
+
+ # Prepare Batch Mode Flag
+ self.batch = batch
+
+ # Get our From username (if specified)
+ self.from_name = from_name
+
+ # Get our from email address
+ self.from_addr = '{user}@{host}'.format(user=self.user, host=self.host)
+
+ if not is_email(self.from_addr):
+ # Parse Source domain based on from_addr
+ msg = 'Invalid ~From~ email format: {}'.format(self.from_addr)
+ self.logger.warning(msg)
+ raise TypeError(msg)
+
+ if targets:
+ # Validate recipients (to:) and drop bad ones:
+ for recipient in parse_emails(targets):
+ result = is_email(recipient)
+ if result:
+ self.targets.append(
+ (result['name'] if result['name'] else False,
+ result['full_email']))
+ continue
+
+ self.logger.warning(
+ 'Dropped invalid To email '
+ '({}) specified.'.format(recipient),
+ )
+
+ else:
+ # If our target email list is empty we want to add ourselves to it
+ self.targets.append(
+ (self.from_name if self.from_name else False, self.from_addr))
+
+ # Validate recipients (cc:) and drop bad ones:
+ for recipient in parse_emails(cc):
+ email = is_email(recipient)
+ if email:
+ self.cc.add(email['full_email'])
+
+ # Index our name (if one exists)
+ self.names[email['full_email']] = \
+ email['name'] if email['name'] else False
+ continue
+
+ self.logger.warning(
+ 'Dropped invalid Carbon Copy email '
+ '({}) specified.'.format(recipient),
+ )
+
+ # Validate recipients (bcc:) and drop bad ones:
+ for recipient in parse_emails(bcc):
+ email = is_email(recipient)
+ if email:
+ self.bcc.add(email['full_email'])
+
+ # Index our name (if one exists)
+ self.names[email['full_email']] = \
+ email['name'] if email['name'] else False
+ continue
+
+ self.logger.warning(
+ 'Dropped invalid Blind Carbon Copy email '
+ '({}) specified.'.format(recipient),
+ )
+
+ def send(self, body, title='', notify_type=NotifyType.INFO, attach=None,
+ **kwargs):
+ """
+ Perform SMTP2Go Notification
+ """
+
+ if not self.targets:
+ # There is no one to email; we're done
+ self.logger.warning(
+ 'There are no Email recipients to notify')
+ return False
+
+ # error tracking (used for function return)
+ has_error = False
+
+ # Send in batches if identified to do so
+ batch_size = 1 if not self.batch else self.default_batch_size
+
+ # Prepare our headers
+ headers = {
+ 'User-Agent': self.app_id,
+ 'Accept': 'application/json',
+ 'Content-Type': 'application/json',
+ }
+
+ # Track our potential attachments
+ attachments = []
+
+ if attach:
+ for idx, attachment in enumerate(attach):
+ # Perform some simple error checking
+ if not attachment:
+ # We could not access the attachment
+ self.logger.error(
+ 'Could not access attachment {}.'.format(
+ attachment.url(privacy=True)))
+ return False
+
+ try:
+ with open(attachment.path, 'rb') as f:
+ # Output must be in a DataURL format (that's what
+ # PushSafer calls it):
+ attachments.append({
+ 'filename': attachment.name,
+ 'fileblob': base64.b64encode(f.read())
+ .decode('utf-8'),
+ 'mimetype': attachment.mimetype,
+ })
+
+ except (OSError, IOError) as e:
+ self.logger.warning(
+ 'An I/O error occurred while reading {}.'.format(
+ attachment.name if attachment else 'attachment'))
+ self.logger.debug('I/O Exception: %s' % str(e))
+ return False
+
+ try:
+ sender = formataddr(
+ (self.from_name if self.from_name else False,
+ self.from_addr), charset='utf-8')
+
+ except TypeError:
+ # Python v2.x Support (no charset keyword)
+ # Format our cc addresses to support the Name field
+ sender = formataddr(
+ (self.from_name if self.from_name else False,
+ self.from_addr))
+
+ # Prepare our payload
+ payload = {
+ # API Key
+ 'api_key': self.apikey,
+
+ # Base payload options
+ 'sender': sender,
+ 'subject': title,
+
+ # our To array
+ 'to': [],
+ }
+
+ if attachments:
+ payload['attachments'] = attachments
+
+ if self.notify_format == NotifyFormat.HTML:
+ payload['html_body'] = body
+
+ else:
+ payload['text_body'] = body
+
+ # Create a copy of the targets list
+ emails = list(self.targets)
+
+ for index in range(0, len(emails), batch_size):
+ # Initialize our cc list
+ cc = (self.cc - self.bcc)
+
+ # Initialize our bcc list
+ bcc = set(self.bcc)
+
+ # Initialize our to list
+ to = list()
+
+ for to_addr in self.targets[index:index + batch_size]:
+ # Strip target out of cc list if in To
+ cc = (cc - set([to_addr[1]]))
+
+ # Strip target out of bcc list if in To
+ bcc = (bcc - set([to_addr[1]]))
+
+ try:
+ # Prepare our to
+ to.append(formataddr(to_addr, charset='utf-8'))
+
+ except TypeError:
+ # Python v2.x Support (no charset keyword)
+ # Format our cc addresses to support the Name field
+
+ # Prepare our to
+ to.append(formataddr(to_addr))
+
+ # Prepare our To
+ payload['to'] = to
+
+ if cc:
+ try:
+ # Format our cc addresses to support the Name field
+ payload['cc'] = [formataddr(
+ (self.names.get(addr, False), addr), charset='utf-8')
+ for addr in cc]
+
+ except TypeError:
+ # Python v2.x Support (no charset keyword)
+ # Format our cc addresses to support the Name field
+ payload['cc'] = [formataddr( # pragma: no branch
+ (self.names.get(addr, False), addr))
+ for addr in cc]
+
+ # Format our bcc addresses to support the Name field
+ if bcc:
+ # set our bcc variable (convert to list first so it's
+ # JSON serializable)
+ payload['bcc'] = list(bcc)
+
+ # Store our header entries if defined into the payload
+ # in their payload
+ if self.headers:
+ payload['custom_headers'] = \
+ [{'header': k, 'value': v}
+ for k, v in self.headers.items()]
+
+ # Some Debug Logging
+ self.logger.debug('SMTP2Go POST URL: {} (cert_verify={})'.format(
+ self.notify_url, self.verify_certificate))
+ self.logger.debug('SMTP2Go Payload: {}' .format(payload))
+
+ # For logging output of success and errors; we get a head count
+ # of our outbound details:
+ verbose_dest = ', '.join(
+ [x[1] for x in self.targets[index:index + batch_size]]) \
+ if len(self.targets[index:index + batch_size]) <= 3 \
+ else '{} recipients'.format(
+ len(self.targets[index:index + batch_size]))
+
+ # Always call throttle before any remote server i/o is made
+ self.throttle()
+ try:
+ r = requests.post(
+ self.notify_url,
+ data=dumps(payload),
+ headers=headers,
+ verify=self.verify_certificate,
+ timeout=self.request_timeout,
+ )
+
+ if r.status_code != requests.codes.ok:
+ # We had a problem
+ status_str = \
+ NotifyBase.http_response_code_lookup(
+ r.status_code, SMTP2GO_HTTP_ERROR_MAP)
+
+ self.logger.warning(
+ 'Failed to send SMTP2Go notification to {}: '
+ '{}{}error={}.'.format(
+ verbose_dest,
+ status_str,
+ ', ' if status_str else '',
+ r.status_code))
+
+ self.logger.debug(
+ 'Response Details:\r\n{}'.format(r.content))
+
+ # Mark our failure
+ has_error = True
+ continue
+
+ else:
+ self.logger.info(
+ 'Sent SMTP2Go notification to {}.'.format(
+ verbose_dest))
+
+ except requests.RequestException as e:
+ self.logger.warning(
+ 'A Connection error occurred sending SMTP2Go:%s ' % (
+ verbose_dest) + 'notification.'
+ )
+ self.logger.debug('Socket Exception: %s' % str(e))
+
+ # Mark our failure
+ has_error = True
+ continue
+
+ except (OSError, IOError) as e:
+ self.logger.warning(
+ 'An I/O error occurred while reading attachments')
+ self.logger.debug('I/O Exception: %s' % str(e))
+
+ # Mark our failure
+ has_error = True
+ continue
+
+ return not has_error
+
+ def url(self, privacy=False, *args, **kwargs):
+ """
+ Returns the URL built dynamically based on specified arguments.
+ """
+
+ # Define any URL parameters
+ params = {
+ 'batch': 'yes' if self.batch else 'no',
+ }
+
+ # Append our headers into our parameters
+ params.update({'+{}'.format(k): v for k, v in self.headers.items()})
+
+ # Extend our parameters
+ params.update(self.url_parameters(privacy=privacy, *args, **kwargs))
+
+ if self.from_name is not None:
+ # from_name specified; pass it back on the url
+ params['name'] = self.from_name
+
+ if self.cc:
+ # Handle our Carbon Copy Addresses
+ params['cc'] = ','.join(
+ ['{}{}'.format(
+ '' if not e not in self.names
+ else '{}:'.format(self.names[e]), e) for e in self.cc])
+
+ if self.bcc:
+ # Handle our Blind Carbon Copy Addresses
+ params['bcc'] = ','.join(self.bcc)
+
+ # a simple boolean check as to whether we display our target emails
+ # or not
+ has_targets = \
+ not (len(self.targets) == 1
+ and self.targets[0][1] == self.from_addr)
+
+ return '{schema}://{user}@{host}/{apikey}/{targets}?{params}'.format(
+ schema=self.secure_protocol,
+ host=self.host,
+ user=NotifySMTP2Go.quote(self.user, safe=''),
+ apikey=self.pprint(self.apikey, privacy, safe=''),
+ targets='' if not has_targets else '/'.join(
+ [NotifySMTP2Go.quote('{}{}'.format(
+ '' if not e[0] else '{}:'.format(e[0]), e[1]),
+ safe='') for e in self.targets]),
+ params=NotifySMTP2Go.urlencode(params))
+
+ @staticmethod
+ def parse_url(url):
+ """
+ Parses the URL and returns enough arguments that can allow
+ us to re-instantiate this object.
+
+ """
+ results = NotifyBase.parse_url(url, verify_host=False)
+ if not results:
+ # We're done early as we couldn't load the results
+ return results
+
+ # Get our entries; split_path() looks after unquoting content for us
+ # by default
+ results['targets'] = NotifySMTP2Go.split_path(results['fullpath'])
+
+ # Our very first entry is reserved for our api key
+ try:
+ results['apikey'] = results['targets'].pop(0)
+
+ except IndexError:
+ # We're done - no API Key found
+ results['apikey'] = None
+
+ if 'name' in results['qsd'] and len(results['qsd']['name']):
+ # Extract from name to associate with from address
+ results['from_name'] = \
+ NotifySMTP2Go.unquote(results['qsd']['name'])
+
+ # Handle 'to' email address
+ if 'to' in results['qsd'] and len(results['qsd']['to']):
+ results['targets'].append(results['qsd']['to'])
+
+ # Handle Carbon Copy Addresses
+ if 'cc' in results['qsd'] and len(results['qsd']['cc']):
+ results['cc'] = results['qsd']['cc']
+
+ # Handle Blind Carbon Copy Addresses
+ if 'bcc' in results['qsd'] and len(results['qsd']['bcc']):
+ results['bcc'] = results['qsd']['bcc']
+
+ # Add our Meta Headers that the user can provide with their outbound
+ # emails
+ results['headers'] = {NotifyBase.unquote(x): NotifyBase.unquote(y)
+ for x, y in results['qsd+'].items()}
+
+ # Get Batch Mode Flag
+ results['batch'] = \
+ parse_bool(results['qsd'].get(
+ 'batch', NotifySMTP2Go.template_args['batch']['default']))
+
+ return results
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 02:43:06 +0000