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apistar-mail
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Renamed Mailer to Mail. Added attribution back to the flask_mail extension. Refactored ascii_attachment check on message. Continued removal of support code for Python2

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androiddrew 7 years ago
parent bb00097b0a
commit 70421df8cf
5 changed files with 107 additions and 58 deletions
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2
LICENSE
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@ -1,4 +1,4 @@
Copyright (c) <year> <owner> . All rights reserved.
Copyright (c) 2018 Andrew Bednar . All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

58
README.md
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# apistar-mail
---
`apistar-mail` provides a simple interface to set up SMTP with your APIStar application and send messages from your view functions. Please note this work derives largely from the [flask_mail](https://github.com/mattupstate/flask-mail) extension by 'Dan Jacob' but has been modified extensively to remove Python 2 support and be used as an APIStar component.
## Installation
`$ pip install apistar-mail`
## Usage
### Setup
To send mail messages from your view functions you must include the `MAIL` dictionary in your settings and the mail_componet in.
```
from apistar import WSGIApp as App
from apistar_mail import mail_component
settings = {
'MAIL': {
'MAIL_SERVER': 'smtp.example.com',
'MAIL_USERNAME': 'drew@example.com',
'MAIL_PASSWORD': 'dontcommitthistoversioncontrol',
'MAIL_PORT': 587,
'MAIL_USE_TLS': True,
'MAIL_DEFAULT_SENDER': 'drew@example.com'
}
}
components = [
mail_component
]
app = App(
settings=settings,
routes=routes,
components=components
)
```
### Sending Messages
To send a message first include the Mail component for injection into your view. Then create an instance of Message, and pass it to your Mail component using `mail.send(msg)`
```
from apistar_mail import Mail, Message
def send_a_message(mail:Mail):
msg = Message('Hello',
sender='drew@example.com'
recipients=[you@example.com])
mail.send(msg)
return
```
The APIStar-Mail extension provides a simple interface to set up SMTP with your APIStar application and send messages from your view functions.

8
apistar_mail/__init__.py
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__version__ = '0.1.1'
"""Top-level package for apistar-mail"""
__author__ = """Drew Bednar"""
__email__ = 'drew@androiddrew.com'
__version__ = '0.1.1'
from .mail import mail_component, Message, Mail

92
apistar_mail/mail.py
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@ -11,22 +11,14 @@ from email.mime.text import MIMEText
from email.header import Header
from email.utils import formatdate, formataddr, make_msgid, parseaddr
from apistar import Settings
from apistar import Settings, Component
from .exc import MailUnicodeDecodeError, BadHeaderError
# TODO Figure out why this is necessary
charset.add_charset('utf-8', charset.SHORTEST, None, 'utf-8')
# TODO ok there is something going here that you may not really grok yet. check
def force_text(s, encoding='utf-8', errors='strict', ):
"""
Similar to smart_text, except that lazy instances are resolved to
strings, rather than kept as lazy objects.
If strings_only is True, don't convert (some) non-string-like objects.
"""
if isinstance(s, str):
return s
@ -48,25 +40,6 @@ def force_text(s, encoding='utf-8', errors='strict', ):
return s
# try:
# if not isinstance(s, string_types):
# if PY3:
# if isinstance(s, bytes):
# s = text_type(s, encoding, errors)
# else:
# s = text_type(s)
# elif hasattr(s, '__unicode__'):
# s = s.__unicode__()
# else:
# s = text_type(bytes(s), encoding, errors)
# else:
# s = s.decode(encoding, errors)
# except UnicodeDecodeError as e:
# if not isinstance(s, Exception):
# raise FlaskMailUnicodeDecodeError(s, *e.args)
# return s
def sanitize_subject(subject, encoding='utf-8'):
try:
@ -119,6 +92,7 @@ class Attachment:
:param content_type: file mimetype
:param data: the raw file data
:param disposition: content-disposition (if any)
:param headers: additional headers. Useful when HTML emails reference attached images
"""
def __init__(self, filename=None, content_type=None, data=None,
@ -148,6 +122,8 @@ class Message:
:param extra_headers: A dictionary of additional headers for the message
:param mail_options: A list of ESMTP options to be used in MAIL FROM command
:param rcpt_options: A list of ESMTP options to be used in RCPT commands
:param ascii_attachments: A boolean used to force attachment file names to ascii
"""
def __init__(self, subject='',
@ -164,7 +140,8 @@ class Message:
charset=None,
extra_headers=None,
mail_options=None,
rcpt_options=None):
rcpt_options=None,
ascii_attachments=False):
if isinstance(sender, tuple):
sender = "{} <{}>".format(*sender)
@ -185,6 +162,7 @@ class Message:
self.mail_options = mail_options or []
self.rcpt_options = rcpt_options or []
self.attachments = attachments or []
self.ascii_attachments = ascii_attachments
@property
def send_to(self):
@ -210,7 +188,6 @@ class Message:
def _message(self):
"""Creates the email"""
ascii_attachments = None # current_app.extensions['mail'].ascii_attachments # What does this do?
encoding = self.charset or 'utf-8'
attachments = self.attachments or []
@ -258,7 +235,7 @@ class Message:
encode_base64(f)
filename = attachment.filename
if filename and ascii_attachments:
if filename and self.ascii_attachments:
# force filename to ascii
filename = unicodedata.normalize('NFKD', filename)
filename = filename.encode('ascii', 'ignore').decode('ascii')
@ -266,7 +243,7 @@ class Message:
try:
filename and filename.encode('ascii')
# TODO Figure out why this is needed.
except UnicodeEncodeError:
filename = ('UTF8', '', filename)
@ -279,12 +256,10 @@ class Message:
msg.attach(f)
# TODO FIGURE out why this was needed for PY3 in the original package
msg.policy = policy.SMTP
return msg
# TODO Figure out if this is needed anymore
def as_string(self):
return self._message().as_string()
@ -320,12 +295,6 @@ class Message:
return True
return False
def is_bad_headers(self):
from warnings import warn
msg = 'is_bad_headers is deprecated, use the new has_bad_headers method instead.'
warn(DeprecationWarning(msg), stacklevel=1)
return self.has_bad_headers()
def send(self, connection):
"""Verifies and sends the message."""
@ -351,6 +320,8 @@ class Message:
:param content_type: file mimetype
:param data: the raw file data
:param disposition: content-disposition (if any)
:param headers: additional headers. Useful when HTML emails reference attached images
"""
self.attachments.append(
Attachment(filename, content_type, data, disposition, headers))
@ -359,16 +330,16 @@ class Message:
class Connection:
"""Handles connection to host"""
def __init__(self, mailer):
def __init__(self, mail):
"""
configure new connection
:param mailer: the application mail manager
:param mail: the application mail manager
"""
self.mailer = mailer
self.mail = mail
def __enter__(self):
if self.mailer.mail_suppress_send:
if self.mail.mail_suppress_send:
self.host = None
else:
self.host = self.configure_host()
@ -382,17 +353,17 @@ class Connection:
self.host.quit()
def configure_host(self):
if self.mailer.mail_use_ssl:
host = smtplib.SMTP_SSL(self.mailer.mail_server, self.mailer.mail_port)
if self.mail.mail_use_ssl:
host = smtplib.SMTP_SSL(self.mail.mail_server, self.mail.mail_port)
else:
host = smtplib.SMTP(self.mailer.mail_server, self.mailer.mail_port)
host = smtplib.SMTP(self.mail.mail_server, self.mail.mail_port)
host.set_debuglevel(int(self.mailer.mail_debug))
host.set_debuglevel(int(self.mail.mail_debug))
if self.mailer.mail_use_tls:
if self.mail.mail_use_tls:
host.starttls()
if self.mailer.mail_user and self.mailer.mail_password:
host.login(self.mailer.mail_user, self.mailer.mail_password)
if self.mail.mail_user and self.mail.mail_password:
host.login(self.mail.mail_user, self.mail.mail_password)
return host
@ -414,6 +385,9 @@ class Connection:
if message.date is None:
message.date = time.time()
if not message.ascii_attachments and self.mail.mail_ascii_attachments:
message.ascii_attachments = True
if self.host:
self.host.sendmail(sanitize_address(envelope_from or message.sender),
list(sanitize_addresses(message.send_to)),
@ -423,7 +397,7 @@ class Connection:
self.num_emails += 1
if self.num_emails == self.mailer.mail_max_emails:
if self.num_emails == self.mail.mail_max_emails:
self.num_emails = 0
if self.host:
self.host.quit()
@ -438,17 +412,17 @@ class Connection:
self.send(Message(*args, **kwargs))
class Mailer:
class Mail:
"""Manages email messaging"""
def __init__(self, settings: Settings):
"""
Configure a new Mailer
Configure a new Mail manager
Args:
settings: The application settings dictionary
"""
mail_config = settings.get('EMAIL')
mail_config = settings.get('MAIL')
self.mail_server = mail_config.get('MAIL_SERVER')
self.mail_user = mail_config.get('MAIL_USERNAME')
self.mail_password = mail_config.get('MAIL_PASSWORD')
@ -475,8 +449,16 @@ class Mailer:
message.send(connection)
def send_message(self, *args, **kwargs):
"""Shortcut for send(msg).
Takes same arguments as Message constructor.
"""
self.send(Message(*args, **kwargs))
def connect(self):
"""Opens a connection to the mail host."""
return Connection(self)
mail_component = Component(Mail, preload=True)

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setup.cfg
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[bdist_wheel]
python-tag = py35
[metadata]
license_file = LICENSE
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