vassili/seitime-frappe
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions 4
seitime-frappe/frappe/email/queue.py
Abhishek Kedar 7b10a2d88a
style: removed comment and formatted dictionary
2020-04-13 20:07:46 +05:30

602 lines
20 KiB
Python
Executable file
Raw Blame History

# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
# MIT License. See license.txt
from __future__ import unicode_literals
import frappe
import sys
from six.moves import html_parser as HTMLParser
import smtplib, quopri, json
from frappe import msgprint, _, safe_decode, safe_encode
from frappe.email.smtp import SMTPServer, get_outgoing_email_account
from frappe.email.email_body import get_email, get_formatted_html, add_attachment
from frappe.utils.verified_command import get_signed_params, verify_request
from html2text import html2text
from frappe.utils import get_url, nowdate, now_datetime, add_days, split_emails, cstr, cint
from rq.timeouts import JobTimeoutException
from six import text_type, string_types, PY3
from email.parser import Parser
class EmailLimitCrossedError(frappe.ValidationError): pass
def send(recipients=None, sender=None, subject=None, message=None, text_content=None, reference_doctype=None,
reference_name=None, unsubscribe_method=None, unsubscribe_params=None, unsubscribe_message=None,
attachments=None, reply_to=None, cc=None, bcc=None, message_id=None, in_reply_to=None, send_after=None,
expose_recipients=None, send_priority=1, communication=None, now=False, read_receipt=None,
queue_separately=False, is_notification=False, add_unsubscribe_link=1, inline_images=None,
header=None, print_letterhead=False):
"""Add email to sending queue (Email Queue)
:param recipients: List of recipients.
:param sender: Email sender.
:param subject: Email subject.
:param message: Email message.
:param text_content: Text version of email message.
:param reference_doctype: Reference DocType of caller document.
:param reference_name: Reference name of caller document.
:param send_priority: Priority for Email Queue, default 1.
:param unsubscribe_method: URL method for unsubscribe. Default is `/api/method/frappe.email.queue.unsubscribe`.
:param unsubscribe_params: additional params for unsubscribed links. default are name, doctype, email
:param attachments: Attachments to be sent.
:param reply_to: Reply to be captured here (default inbox)
:param in_reply_to: Used to send the Message-Id of a received email back as In-Reply-To.
:param send_after: Send this email after the given datetime. If value is in integer, then `send_after` will be the automatically set to no of days from current date.
:param communication: Communication link to be set in Email Queue record
:param now: Send immediately (don't send in the background)
:param queue_separately: Queue each email separately
:param is_notification: Marks email as notification so will not trigger notifications from system
:param add_unsubscribe_link: Send unsubscribe link in the footer of the Email, default 1.
:param inline_images: List of inline images as {"filename", "filecontent"}. All src properties will be replaced with random Content-Id
:param header: Append header in email (boolean)
"""
if not unsubscribe_method:
unsubscribe_method = "/api/method/frappe.email.queue.unsubscribe"
if not recipients and not cc:
return
if not cc:
cc = []
if not bcc:
bcc = []
if isinstance(recipients, string_types):
recipients = split_emails(recipients)
if isinstance(cc, string_types):
cc = split_emails(cc)
if isinstance(bcc, string_types):
bcc = split_emails(bcc)
if isinstance(send_after, int):
send_after = add_days(nowdate(), send_after)
email_account = get_outgoing_email_account(True, append_to=reference_doctype, sender=sender)
if not sender or sender == "Administrator":
sender = email_account.default_sender
if not text_content:
try:
text_content = html2text(message)
except HTMLParser.HTMLParseError:
text_content = "See html attachment"
recipients = list(set(recipients))
cc = list(set(cc))
all_ids = tuple(recipients + cc)
unsubscribed = frappe.db.sql_list('''
SELECT
distinct email
from
`tabEmail Unsubscribe`
where
email in %(all_ids)s
and (
(
reference_doctype = %(reference_doctype)s
and reference_name = %(reference_name)s
)
or global_unsubscribe = 1
)
''', {
'all_ids': all_ids,
'reference_doctype': reference_doctype,
'reference_name': reference_name,
})
recipients = [r for r in recipients if r and r not in unsubscribed]
if cc:
cc = [r for r in cc if r and r not in unsubscribed]
if not recipients and not cc:
# Recipients may have been unsubscribed, exit quietly
return
email_text_context = text_content
should_append_unsubscribe = (add_unsubscribe_link
and reference_doctype
and (unsubscribe_message or reference_doctype=="Newsletter")
and add_unsubscribe_link==1)
unsubscribe_link = None
if should_append_unsubscribe:
unsubscribe_link = get_unsubscribe_message(unsubscribe_message, expose_recipients)
email_text_context += unsubscribe_link.text
email_content = get_formatted_html(subject, message,
email_account=email_account, header=header,
unsubscribe_link=unsubscribe_link)
# add to queue
add(recipients, sender, subject,
formatted=email_content,
text_content=email_text_context,
reference_doctype=reference_doctype,
reference_name=reference_name,
attachments=attachments,
reply_to=reply_to,
cc=cc,
bcc=bcc,
message_id=message_id,
in_reply_to=in_reply_to,
send_after=send_after,
send_priority=send_priority,
email_account=email_account,
communication=communication,
add_unsubscribe_link=add_unsubscribe_link,
unsubscribe_method=unsubscribe_method,
unsubscribe_params=unsubscribe_params,
expose_recipients=expose_recipients,
read_receipt=read_receipt,
queue_separately=queue_separately,
is_notification = is_notification,
inline_images = inline_images,
header=header,
now=now,
print_letterhead=print_letterhead)
def add(recipients, sender, subject, **kwargs):
"""Add to Email Queue"""
if kwargs.get('queue_separately') or len(recipients) > 20:
email_queue = None
for r in recipients:
if not email_queue:
email_queue = get_email_queue([r], sender, subject, **kwargs)
if kwargs.get('now'):
send_one(email_queue.name, now=True)
else:
duplicate = email_queue.get_duplicate([r])
duplicate.insert(ignore_permissions=True)
if kwargs.get('now'):
send_one(duplicate.name, now=True)
frappe.db.commit()
else:
email_queue = get_email_queue(recipients, sender, subject, **kwargs)
if kwargs.get('now'):
send_one(email_queue.name, now=True)
def get_email_queue(recipients, sender, subject, **kwargs):
'''Make Email Queue object'''
e = frappe.new_doc('Email Queue')
e.priority = kwargs.get('send_priority')
attachments = kwargs.get('attachments')
if attachments:
# store attachments with fid or print format details, to be attached on-demand later
_attachments = []
for att in attachments:
if att.get('fid'):
_attachments.append(att)
elif att.get("print_format_attachment") == 1:
if not att.get('lang', None):
att['lang'] = frappe.local.lang
att['print_letterhead'] = kwargs.get('print_letterhead')
_attachments.append(att)
e.attachments = json.dumps(_attachments)
try:
mail = get_email(recipients,
sender=sender,
subject=subject,
formatted=kwargs.get('formatted'),
text_content=kwargs.get('text_content'),
attachments=kwargs.get('attachments'),
reply_to=kwargs.get('reply_to'),
cc=kwargs.get('cc'),
bcc=kwargs.get('bcc'),
email_account=kwargs.get('email_account'),
expose_recipients=kwargs.get('expose_recipients'),
inline_images=kwargs.get('inline_images'),
header=kwargs.get('header'))
mail.set_message_id(kwargs.get('message_id'),kwargs.get('is_notification'))
if kwargs.get('read_receipt'):
mail.msg_root["Disposition-Notification-To"] = sender
if kwargs.get('in_reply_to'):
mail.set_in_reply_to(kwargs.get('in_reply_to'))
e.message_id = mail.msg_root["Message-Id"].strip(" <>")
e.message = cstr(mail.as_string())
e.sender = mail.sender
except frappe.InvalidEmailAddressError:
# bad Email Address - don't add to queue
import traceback
frappe.log_error('Invalid Email ID Sender: {0}, Recipients: {1}, \nTraceback: {2} '.format(mail.sender,
', '.join(mail.recipients), traceback.format_exc()), 'Email Not Sent')
recipients = list(set(recipients + kwargs.get('cc', []) + kwargs.get('bcc', [])))
e.set_recipients(recipients)
e.reference_doctype = kwargs.get('reference_doctype')
e.reference_name = kwargs.get('reference_name')
e.add_unsubscribe_link = kwargs.get("add_unsubscribe_link")
e.unsubscribe_method = kwargs.get('unsubscribe_method')
e.unsubscribe_params = kwargs.get('unsubscribe_params')
e.expose_recipients = kwargs.get('expose_recipients')
e.communication = kwargs.get('communication')
e.send_after = kwargs.get('send_after')
e.show_as_cc = ",".join(kwargs.get('cc', []))
e.show_as_bcc = ",".join(kwargs.get('bcc', []))
e.insert(ignore_permissions=True)
return e
def get_emails_sent_this_month():
return frappe.db.sql("""
SELECT COUNT(*) FROM `tabEmail Queue`
WHERE `status`='Sent' AND EXTRACT(YEAR_MONTH FROM `creation`) = EXTRACT(YEAR_MONTH FROM NOW())
""")[0][0]
def get_emails_sent_today():
return frappe.db.sql("""SELECT COUNT(`name`) FROM `tabEmail Queue` WHERE
`status` in ('Sent', 'Not Sent', 'Sending') AND `creation` > (NOW() - INTERVAL '24' HOUR)""")[0][0]
def get_unsubscribe_message(unsubscribe_message, expose_recipients):
if unsubscribe_message:
unsubscribe_html = '''<a href="<!--unsubscribe url-->"
target="_blank">{0}</a>'''.format(unsubscribe_message)
else:
unsubscribe_link = '''<a href="<!--unsubscribe url-->"
target="_blank">{0}</a>'''.format(_('Unsubscribe'))
unsubscribe_html = _("{0} to stop receiving emails of this type").format(unsubscribe_link)
html = """<div class="email-unsubscribe">
<!--cc message-->
<div>
{0}
</div>
</div>""".format(unsubscribe_html)
if expose_recipients == "footer":
text = "\n<!--cc message-->"
else:
text = ""
text += "\n\n{unsubscribe_message}: <!--unsubscribe url-->\n".format(unsubscribe_message=unsubscribe_message)
return frappe._dict({
"html": html,
"text": text
})
def get_unsubcribed_url(reference_doctype, reference_name, email, unsubscribe_method, unsubscribe_params):
params = {"email": email.encode("utf-8"),
"doctype": reference_doctype.encode("utf-8"),
"name": reference_name.encode("utf-8")}
if unsubscribe_params:
params.update(unsubscribe_params)
query_string = get_signed_params(params)
# for test
frappe.local.flags.signed_query_string = query_string
return get_url(unsubscribe_method + "?" + get_signed_params(params))
@frappe.whitelist(allow_guest=True)
def unsubscribe(doctype, name, email):
# unsubsribe from comments and communications
if not verify_request():
return
try:
frappe.get_doc({
"doctype": "Email Unsubscribe",
"email": email,
"reference_doctype": doctype,
"reference_name": name
}).insert(ignore_permissions=True)
except frappe.DuplicateEntryError:
frappe.db.rollback()
else:
frappe.db.commit()
return_unsubscribed_page(email, doctype, name)
def return_unsubscribed_page(email, doctype, name):
frappe.respond_as_web_page(_("Unsubscribed"),
_("{0} has left the conversation in {1} {2}").format(email, _(doctype), name),
indicator_color='green')
def flush(from_test=False):
"""flush email queue, every time: called from scheduler"""
# additional check
auto_commit = not from_test
if frappe.are_emails_muted():
msgprint(_("Emails are muted"))
from_test = True
smtpserver_dict = frappe._dict()
for email in get_queue():
if cint(frappe.defaults.get_defaults().get("hold_queue"))==1:
break
if email.name:
smtpserver = smtpserver_dict.get(email.sender)
if not smtpserver:
smtpserver = SMTPServer()
smtpserver_dict[email.sender] = smtpserver
from frappe import enqueue
send_one_args = {
'email': email.name,
'smtpserver': smtpserver,
'auto_commit': auto_commit,
'from_test': from_test
}
enqueue(
method='frappe.email.queue.send_one',
queue='short',
**send_one_args
)
# NOTE: removing commit here because we pass auto_commit
# finally:
# frappe.db.commit()
def get_queue():
return frappe.db.sql('''select
name, sender
from
`tabEmail Queue`
where
(status='Not Sent' or status='Partially Sent') and
(send_after is null or send_after < %(now)s)
order
by priority desc, creation asc
limit 500''', { 'now': now_datetime() }, as_dict=True)
def send_one(email, smtpserver=None, auto_commit=True, now=False, from_test=False):
'''Send Email Queue with given smtpserver'''
email = frappe.db.sql('''select
name, status, communication, message, sender, reference_doctype,
reference_name, unsubscribe_param, unsubscribe_method, expose_recipients,
show_as_cc, add_unsubscribe_link, attachments, retry
from
`tabEmail Queue`
where
name=%s
for update''', email, as_dict=True)[0]
recipients_list = frappe.db.sql('''select name, recipient, status from
`tabEmail Queue Recipient` where parent=%s''', email.name, as_dict=1)
if frappe.are_emails_muted():
frappe.msgprint(_("Emails are muted"))
return
if cint(frappe.defaults.get_defaults().get("hold_queue"))==1 :
return
if email.status not in ('Not Sent','Partially Sent') :
# rollback to release lock and return
frappe.db.rollback()
return
frappe.db.sql("""update `tabEmail Queue` set status='Sending', modified=%s where name=%s""",
(now_datetime(), email.name), auto_commit=auto_commit)
if email.communication:
frappe.get_doc('Communication', email.communication).set_delivery_status(commit=auto_commit)
try:
message = None
if not frappe.flags.in_test:
if not smtpserver:
smtpserver = SMTPServer()
# to avoid always using default email account for outgoing
if getattr(frappe.local, "outgoing_email_account", None):
frappe.local.outgoing_email_account = {}
smtpserver.setup_email_account(email.reference_doctype, sender=email.sender)
for recipient in recipients_list:
if recipient.status != "Not Sent":
continue
message = prepare_message(email, recipient.recipient, recipients_list)
if not frappe.flags.in_test:
smtpserver.sess.sendmail(email.sender, recipient.recipient, message)
recipient.status = "Sent"
frappe.db.sql("""update `tabEmail Queue Recipient` set status='Sent', modified=%s where name=%s""",
(now_datetime(), recipient.name), auto_commit=auto_commit)
email_sent_to_any_recipient = any("Sent" == s.status for s in recipients_list)
#if all are sent set status
if email_sent_to_any_recipient:
frappe.db.sql("""update `tabEmail Queue` set status='Sent', modified=%s where name=%s""",
(now_datetime(), email.name), auto_commit=auto_commit)
else:
frappe.db.sql("""update `tabEmail Queue` set status='Error', error=%s
where name=%s""", ("No recipients to send to", email.name), auto_commit=auto_commit)
if frappe.flags.in_test:
frappe.flags.sent_mail = message
return
if email.communication:
frappe.get_doc('Communication', email.communication).set_delivery_status(commit=auto_commit)
if smtpserver.append_emails_to_sent_folder and email_sent_to_any_recipient:
smtpserver.email_account.append_email_to_sent_folder(encode(message))
except (smtplib.SMTPServerDisconnected,
smtplib.SMTPConnectError,
smtplib.SMTPHeloError,
smtplib.SMTPAuthenticationError,
smtplib.SMTPRecipientsRefused,
JobTimeoutException):
# bad connection/timeout, retry later
if email_sent_to_any_recipient:
frappe.db.sql("""update `tabEmail Queue` set status='Partially Sent', modified=%s where name=%s""",
(now_datetime(), email.name), auto_commit=auto_commit)
else:
frappe.db.sql("""update `tabEmail Queue` set status='Not Sent', modified=%s where name=%s""",
(now_datetime(), email.name), auto_commit=auto_commit)
if email.communication:
frappe.get_doc('Communication', email.communication).set_delivery_status(commit=auto_commit)
# no need to attempt further
return
except Exception as e:
frappe.db.rollback()
if email.retry < 3:
frappe.db.sql("""update `tabEmail Queue` set status='Not Sent', modified=%s, retry=retry+1 where name=%s""",
(now_datetime(), email.name), auto_commit=auto_commit)
else:
if email_sent_to_any_recipient:
frappe.db.sql("""update `tabEmail Queue` set status='Partially Errored', error=%s where name=%s""",
(text_type(e), email.name), auto_commit=auto_commit)
else:
frappe.db.sql("""update `tabEmail Queue` set status='Error', error=%s
where name=%s""", (text_type(e), email.name), auto_commit=auto_commit)
if email.communication:
frappe.get_doc('Communication', email.communication).set_delivery_status(commit=auto_commit)
if now:
print(frappe.get_traceback())
raise e
else:
# log to Error Log
frappe.log_error('frappe.email.queue.flush')
def prepare_message(email, recipient, recipients_list):
message = email.message
if not message:
return ""
# Parse "Email Account" from "Email Sender"
email_account = get_outgoing_email_account(raise_exception_not_set=False, sender=email.sender)
if frappe.conf.use_ssl and email_account.track_email_status:
# Using SSL => Publically available domain => Email Read Reciept Possible
message = message.replace("<!--email open check-->", quopri.encodestring('<img src="https://{}/api/method/frappe.core.doctype.communication.email.mark_email_as_seen?name={}"/>'.format(frappe.local.site, email.communication).encode()).decode())
else:
# No SSL => No Email Read Reciept
message = message.replace("<!--email open check-->", quopri.encodestring("".encode()).decode())
if email.add_unsubscribe_link and email.reference_doctype: # is missing the check for unsubscribe message but will not add as there will be no unsubscribe url
unsubscribe_url = get_unsubcribed_url(email.reference_doctype, email.reference_name, recipient,
email.unsubscribe_method, email.unsubscribe_params)
message = message.replace("<!--unsubscribe url-->", quopri.encodestring(unsubscribe_url.encode()).decode())
if email.expose_recipients == "header":
pass
else:
if email.expose_recipients == "footer":
if isinstance(email.show_as_cc, string_types):
email.show_as_cc = email.show_as_cc.split(",")
email_sent_to = [r.recipient for r in recipients_list]
email_sent_cc = ", ".join([e for e in email_sent_to if e in email.show_as_cc])
email_sent_to = ", ".join([e for e in email_sent_to if e not in email.show_as_cc])
if email_sent_cc:
email_sent_message = _("This email was sent to {0} and copied to {1}").format(email_sent_to,email_sent_cc)
else:
email_sent_message = _("This email was sent to {0}").format(email_sent_to)
message = message.replace("<!--cc message-->", quopri.encodestring(email_sent_message.encode()).decode())
message = message.replace("<!--recipient-->", recipient)
message = (message and message.encode('utf8')) or ''
message = safe_decode(message)
if PY3:
from email.policy import SMTPUTF8
message = Parser(policy=SMTPUTF8).parsestr(message)
else:
message = Parser().parsestr(message)
if email.attachments:
# On-demand attachments
attachments = json.loads(email.attachments)
for attachment in attachments:
if attachment.get('fcontent'):
continue
fid = attachment.get("fid")
if fid:
_file = frappe.get_doc("File", fid)
fcontent = _file.get_content()
attachment.update({
'fname': _file.file_name,
'fcontent': fcontent,
'parent': message
})
attachment.pop("fid", None)
add_attachment(**attachment)
elif attachment.get("print_format_attachment") == 1:
attachment.pop("print_format_attachment", None)
print_format_file = frappe.attach_print(**attachment)
print_format_file.update({"parent": message})
add_attachment(**print_format_file)
return safe_encode(message.as_string())
def clear_outbox():
"""Remove low priority older than 31 days in Outbox and expire mails not sent for 7 days.
Called daily via scheduler.
Note: Used separate query to avoid deadlock
"""
email_queues = frappe.db.sql_list("""SELECT `name` FROM `tabEmail Queue`
WHERE `priority`=0 AND `modified` < (NOW() - INTERVAL '31' DAY)""")
if email_queues:
frappe.db.sql("""DELETE FROM `tabEmail Queue` WHERE `name` IN ({0})""".format(
','.join(['%s']*len(email_queues)
)), tuple(email_queues))
frappe.db.sql("""DELETE FROM `tabEmail Queue Recipient` WHERE `parent` IN ({0})""".format(
','.join(['%s']*len(email_queues)
)), tuple(email_queues))
frappe.db.sql("""
UPDATE `tabEmail Queue`
SET `status`='Expired'
WHERE `modified` < (NOW() - INTERVAL '7' DAY)
AND `status`='Not Sent'
AND (`send_after` IS NULL OR `send_after` < %(now)s)""", { 'now': now_datetime() })
Reference in a new issue View git blame Copy permalink