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parallel-library/cps/helper.py

191 lines
6.3 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
from cps import db, ub
from cps import config
import smtplib
import sys
import os
import traceback
import re
import unicodedata
from StringIO import StringIO
from email import encoders
from email.MIMEBase import MIMEBase
from email.MIMEMultipart import MIMEMultipart
from email.MIMEText import MIMEText
from email.generator import Generator
import subprocess
def update_download(book_id, user_id):
check = ub.session.query(ub.Downloads).filter(ub.Downloads.user_id == user_id).filter(ub.Downloads.book_id == book_id).first()
if not check:
new_download = ub.Downloads(user_id=user_id, book_id=book_id)
ub.session.add(new_download)
ub.session.commit()
def make_mobi(book_id):
kindlegen = os.path.join(config.MAIN_DIR, "vendor", "kindlegen")
if not os.path.exists(kindlegen):
print "make_mobie: kindlegen binary not found in: %s" % kindlegen
return None
book = db.session.query(db.Books).filter(db.Books.id == book_id).first()
data = db.session.query(db.Data).filter(db.Data.book == book.id).filter(db.Data.format == 'EPUB').first()
if not data:
print "make_mobie: epub format not found for book id: %d" % book_id
return None
file_path = os.path.join(config.DB_ROOT, book.path, data.name)
# print os.path.getsize(file_path + ".epub")
if os.path.exists(file_path + ".epub"):
# print u"conversion started for %s" % book.title
check = subprocess.call([kindlegen, file_path + ".epub"], stdout=subprocess.PIPE)
if not check or check < 2:
book.data.append(db.Data(
name=book.data[0].name,
format="MOBI",
book=book.id,
uncompressed_size=os.path.getsize(file_path + ".mobi")
))
db.session.commit()
return file_path + ".mobi"
else:
print "make_mobie: kindlegen failed to convert book"
return None
else:
print "make_mobie: epub not found: " + file_path + ".epub"
return None
def send_mail(book_id, kindle_mail):
'''Send email with attachments'''
is_mobi = False
is_azw = False
is_azw3 = False
is_epub = False
is_pdf = False
file_path = None
settings = ub.get_mail_settings()
# create MIME message
msg = MIMEMultipart()
msg['From'] = settings["mail_from"]
msg['To'] = kindle_mail
msg['Subject'] = 'Sent to Kindle'
text = 'This email has been sent via calibre web.'
msg.attach(MIMEText(text))
use_ssl = settings.get('mail_use_ssl', 0)
print "use ssl: %d" % use_ssl
# attach files
#msg.attach(self.get_attachment(file_path))
book = db.session.query(db.Books).filter(db.Books.id == book_id).first()
data = db.session.query(db.Data).filter(db.Data.book == book.id)
formats = {}
for entry in data:
if entry.format == "MOBI":
formats["mobi"] = os.path.join(config.DB_ROOT, book.path, entry.name + ".mobi")
if entry.format == "AZW":
formats["azw"] = os.path.join(config.DB_ROOT, book.path, entry.name + ".azw")
if entry.format == "AZW3":
formats["azw3"] = os.path.join(config.DB_ROOT, book.path, entry.name + ".azw3")
if entry.format == "EPUB":
formats["epub"] = os.path.join(config.DB_ROOT, book.path, entry.name + ".epub")
if entry.format == "PDF":
formats["pdf"] = os.path.join(config.DB_ROOT, book.path, entry.name + ".pdf")
if len(formats) == 0:
print "no formats found"
return "Could not find any formats that can be send by email"
if 'azw3' in formats:
msg.attach(get_attachment(formats['azw3']))
elif 'azw' in formats:
msg.attach(get_attachment(formats['azw']))
elif 'mobi' in formats:
msg.attach(get_attachment(formats['mobi']))
elif 'epub' in formats:
filepath = make_mobi(book.id)
if filepath is not None:
msg.attach(get_attachment(filepath))
elif 'pdf' in formats:
msg.attach(get_attachment(formats['pdf']))
elif 'pdf' in formats:
msg.attach(get_attachment(formats['pdf']))
else:
return "Could not find any formats that can be send by email"
# convert MIME message to string
fp = StringIO()
gen = Generator(fp, mangle_from_=False)
gen.flatten(msg)
msg = fp.getvalue()
# send email
try:
mailserver = smtplib.SMTP(settings["mail_server"],settings["mail_port"])
mailserver.set_debuglevel(0)
if int(use_ssl) == 1:
mailserver.ehlo()
mailserver.starttls()
mailserver.ehlo()
mailserver.login(settings["mail_login"], settings["mail_password"])
mailserver.sendmail(settings["mail_login"], kindle_mail, msg)
mailserver.quit()
except smtplib.SMTPException:
traceback.print_exc()
return "Error communicating with the mail server, please check the logs for details."
return None
def get_attachment(file_path):
'''Get file as MIMEBase message'''
try:
file_ = open(file_path, 'rb')
attachment = MIMEBase('application', 'octet-stream')
attachment.set_payload(file_.read())
file_.close()
encoders.encode_base64(attachment)
attachment.add_header('Content-Disposition', 'attachment',
filename=os.path.basename(file_path))
return attachment
except IOError:
traceback.print_exc()
message = ('The requested file could not be read. Maybe wrong '
'permissions?')
return None
def get_valid_filename(value):
"""
Returns the given string converted to a string that can be used for a clean
filename. Limits num characters to 128 max.
"""
value = value[:128]
re_slugify = re.compile('[^\w\s-]', re.UNICODE)
value = unicodedata.normalize('NFKD', value)
re_slugify = re.compile('[^\w\s-]', re.UNICODE)
value = unicode(re_slugify.sub('', value).strip())
value = re.sub('[\s]+', '_', value, flags=re.U)
return value
def get_normalized_author(value):
"""
Normalizes sorted author name
"""
value = unicodedata.normalize('NFKD', value)
value = re.sub('[^\w,\s]', '', value, flags=re.U)
value = " ".join(value.split(", ")[::-1])
return value