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mirror of https://github.com/janeczku/calibre-web synced 2024-12-24 09:00:29 +00:00
calibre-web/cps/tasks/mail.py
Ozzieisaacs a659f2e49d Improved logging for emails
Removed private data from debug export
2021-01-03 19:27:34 +01:00

242 lines
8.2 KiB
Python

from __future__ import division, print_function, unicode_literals
import sys
import os
import smtplib
import threading
import socket
try:
from StringIO import StringIO
from email.MIMEBase import MIMEBase
from email.MIMEMultipart import MIMEMultipart
from email.MIMEText import MIMEText
except ImportError:
from io import StringIO
from email.mime.base import MIMEBase
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email import encoders
from email.utils import formatdate, make_msgid
from email.generator import Generator
from cps.services.worker import CalibreTask
from cps import logger, config
from cps import gdriveutils
log = logger.create()
CHUNKSIZE = 8192
# Class for sending email with ability to get current progress
class EmailBase:
transferSize = 0
progress = 0
def data(self, msg):
self.transferSize = len(msg)
(code, resp) = smtplib.SMTP.data(self, msg)
self.progress = 0
return (code, resp)
def send(self, strg):
"""Send `strg' to the server."""
log.debug_no_auth('send: {}'.format(strg[:300]))
if hasattr(self, 'sock') and self.sock:
try:
if self.transferSize:
lock=threading.Lock()
lock.acquire()
self.transferSize = len(strg)
lock.release()
for i in range(0, self.transferSize, CHUNKSIZE):
if isinstance(strg, bytes):
self.sock.send((strg[i:i + CHUNKSIZE]))
else:
self.sock.send((strg[i:i + CHUNKSIZE]).encode('utf-8'))
lock.acquire()
self.progress = i
lock.release()
else:
self.sock.sendall(strg.encode('utf-8'))
except socket.error:
self.close()
raise smtplib.SMTPServerDisconnected('Server not connected')
else:
raise smtplib.SMTPServerDisconnected('please run connect() first')
@classmethod
def _print_debug(cls, *args):
log.debug(args)
def getTransferStatus(self):
if self.transferSize:
lock2 = threading.Lock()
lock2.acquire()
value = int((float(self.progress) / float(self.transferSize))*100)
lock2.release()
return value / 100
else:
return 1
# Class for sending email with ability to get current progress, derived from emailbase class
class Email(EmailBase, smtplib.SMTP):
def __init__(self, *args, **kwargs):
smtplib.SMTP.__init__(self, *args, **kwargs)
# Class for sending ssl encrypted email with ability to get current progress, , derived from emailbase class
class EmailSSL(EmailBase, smtplib.SMTP_SSL):
def __init__(self, *args, **kwargs):
smtplib.SMTP_SSL.__init__(self, *args, **kwargs)
class TaskEmail(CalibreTask):
def __init__(self, subject, filepath, attachment, settings, recipient, taskMessage, text, internal=False):
super(TaskEmail, self).__init__(taskMessage)
self.subject = subject
self.attachment = attachment
self.settings = settings
self.filepath = filepath
self.recipent = recipient
self.text = text
self.asyncSMTP = None
self.results = dict()
def run(self, worker_thread):
# create MIME message
msg = MIMEMultipart()
msg['Subject'] = self.subject
msg['Message-Id'] = make_msgid('calibre-web')
msg['Date'] = formatdate(localtime=True)
text = self.text
msg.attach(MIMEText(text.encode('UTF-8'), 'plain', 'UTF-8'))
if self.attachment:
result = self._get_attachment(self.filepath, self.attachment)
if result:
msg.attach(result)
else:
self._handleError(u"Attachment not found")
return
msg['From'] = self.settings["mail_from"]
msg['To'] = self.recipent
use_ssl = int(self.settings.get('mail_use_ssl', 0))
try:
# convert MIME message to string
fp = StringIO()
gen = Generator(fp, mangle_from_=False)
gen.flatten(msg)
msg = fp.getvalue()
# send email
timeout = 600 # set timeout to 5mins
# redirect output to logfile on python2 pn python3 debugoutput is caught with overwritten
# _print_debug function
if sys.version_info < (3, 0):
org_smtpstderr = smtplib.stderr
smtplib.stderr = logger.StderrLogger('worker.smtp')
if use_ssl == 2:
self.asyncSMTP = EmailSSL(self.settings["mail_server"], self.settings["mail_port"],
timeout=timeout)
else:
self.asyncSMTP = Email(self.settings["mail_server"], self.settings["mail_port"], timeout=timeout)
# link to logginglevel
if logger.is_debug_enabled():
self.asyncSMTP.set_debuglevel(1)
if use_ssl == 1:
self.asyncSMTP.starttls()
if self.settings["mail_password"]:
self.asyncSMTP.login(str(self.settings["mail_login"]), str(self.settings["mail_password"]))
self.asyncSMTP.sendmail(self.settings["mail_from"], self.recipent, msg)
self.asyncSMTP.quit()
self._handleSuccess()
if sys.version_info < (3, 0):
smtplib.stderr = org_smtpstderr
except (MemoryError) as e:
log.debug_or_exception(e)
self._handleError(u'MemoryError sending email: ' + str(e))
# return None
except (smtplib.SMTPException, smtplib.SMTPAuthenticationError) as e:
if hasattr(e, "smtp_error"):
text = e.smtp_error.decode('utf-8').replace("\n", '. ')
elif hasattr(e, "message"):
text = e.message
elif hasattr(e, "args"):
text = '\n'.join(e.args)
else:
log.debug_or_exception(e)
text = ''
self._handleError(u'Smtplib Error sending email: ' + text)
# return None
except (socket.error) as e:
self._handleError(u'Socket Error sending email: ' + e.strerror)
# return None
@property
def progress(self):
if self.asyncSMTP is not None:
return self.asyncSMTP.getTransferStatus()
else:
return self._progress
@progress.setter
def progress(self, x):
"""This gets explicitly set when handle(Success|Error) are called. In this case, remove the SMTP connection"""
if x == 1:
self.asyncSMTP = None
self._progress = x
@classmethod
def _get_attachment(cls, bookpath, filename):
"""Get file as MIMEBase message"""
calibrepath = config.config_calibre_dir
if config.config_use_google_drive:
df = gdriveutils.getFileFromEbooksFolder(bookpath, filename)
if df:
datafile = os.path.join(calibrepath, bookpath, filename)
if not os.path.exists(os.path.join(calibrepath, bookpath)):
os.makedirs(os.path.join(calibrepath, bookpath))
df.GetContentFile(datafile)
else:
return None
file_ = open(datafile, 'rb')
data = file_.read()
file_.close()
os.remove(datafile)
else:
try:
file_ = open(os.path.join(calibrepath, bookpath, filename), 'rb')
data = file_.read()
file_.close()
except IOError as e:
log.debug_or_exception(e)
log.error(u'The requested file could not be read. Maybe wrong permissions?')
return None
attachment = MIMEBase('application', 'octet-stream')
attachment.set_payload(data)
encoders.encode_base64(attachment)
attachment.add_header('Content-Disposition', 'attachment',
filename=filename)
return attachment
@property
def name(self):
return "Email"