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parallel-library/cps/helper.py

372 lines
13 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import db
import ub
from flask import current_app as app
import logging
import smtplib
import tempfile
import socket
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
from flask_babel import gettext as _
import subprocess
import shutil
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, calibrepath):
vendorpath = os.path.join(os.path.normpath(os.path.dirname(os.path.realpath(__file__)) +
os.sep + "../vendor" + os.sep))
if sys.platform == "win32":
kindlegen = os.path.join(vendorpath, u"kindlegen.exe")
else:
kindlegen = os.path.join(vendorpath, u"kindlegen")
if not os.path.exists(kindlegen):
app.logger.error("make_mobi: 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:
app.logger.error("make_mobi: epub format not found for book id: %d" % book_id)
return None
file_path = os.path.join(calibrepath, book.path, data.name)
if os.path.exists(file_path + u".epub"):
p = subprocess.Popen((kindlegen + " \"" + file_path + u".epub\" ").encode(sys.getfilesystemencoding()),
shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE)
# Poll process for new output until finished
while True:
nextline = p.stdout.readline()
if nextline == '' and p.poll() is not None:
break
if nextline != "\r\n":
app.logger.debug(nextline.strip('\r\n'))
check = p.returncode
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:
app.logger.error("make_mobi: kindlegen failed with error while converting book")
return None
else:
app.logger.error("make_mobie: epub not found: %s.epub" % file_path)
return None
class StderrLogger(object):
buffer = ''
def __init__(self):
self.logger = logging.getLogger('cps.web')
def write(self, message):
if message == '\n':
self.logger.debug(self.buffer)
self.buffer = ''
else:
self.buffer += message
def send_raw_email(kindle_mail, msg):
settings = ub.get_mail_settings()
msg['From'] = settings["mail_from"]
msg['To'] = kindle_mail
use_ssl = int(settings.get('mail_use_ssl', 0))
# convert MIME message to string
fp = StringIO()
gen = Generator(fp, mangle_from_=False)
gen.flatten(msg)
msg = fp.getvalue()
# send email
try:
timeout = 600 # set timeout to 5mins
org_stderr = smtplib.stderr
smtplib.stderr = StderrLogger()
if use_ssl == 2:
mailserver = smtplib.SMTP_SSL(settings["mail_server"], settings["mail_port"], timeout)
else:
mailserver = smtplib.SMTP(settings["mail_server"], settings["mail_port"], timeout)
mailserver.set_debuglevel(1)
if use_ssl == 1:
mailserver.starttls()
if settings["mail_password"]:
mailserver.login(settings["mail_login"], settings["mail_password"])
mailserver.sendmail(settings["mail_login"], kindle_mail, msg)
mailserver.quit()
smtplib.stderr = org_stderr
except (socket.error, smtplib.SMTPRecipientsRefused, smtplib.SMTPException), e:
app.logger.error(traceback.print_exc())
return _("Failed to send mail: %s" % str(e))
return None
def send_test_mail(kindle_mail):
msg = MIMEMultipart()
msg['Subject'] = _(u'Calibre-web test email')
text = _(u'This email has been sent via calibre web.')
msg.attach(MIMEText(text.encode('UTF-8'), 'plain', 'UTF-8'))
return send_raw_email(kindle_mail, msg)
def send_mail(book_id, kindle_mail, calibrepath):
"""Send email with attachments"""
# create MIME message
msg = MIMEMultipart()
msg['Subject'] = _(u'Send to Kindle')
text = _(u'This email has been sent via calibre web.')
msg.attach(MIMEText(text.encode('UTF-8'), 'plain', 'UTF-8'))
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(calibrepath, book.path, entry.name + ".mobi")
if entry.format == "EPUB":
formats["epub"] = os.path.join(calibrepath, book.path, entry.name + ".epub")
if entry.format == "PDF":
formats["pdf"] = os.path.join(calibrepath, book.path, entry.name + ".pdf")
if len(formats) == 0:
return _("Could not find any formats suitable for sending by email")
if 'mobi' in formats:
msg.attach(get_attachment(formats['mobi']))
elif 'epub' in formats:
filepath = make_mobi(book.id, calibrepath)
if filepath is not None:
msg.attach(get_attachment(filepath))
elif filepath is None:
return _("Could not convert epub to mobi")
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 suitable for sending by email")
return send_raw_email(kindle_mail, msg)
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?')) # ToDo: What is this?
return None
def get_valid_filename(value, replace_whitespace=True):
"""
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())
if replace_whitespace:
value = re.sub('[\s]+', '_', value, flags=re.U)
value = value.replace(u"\u00DF", "ss")
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
def update_dir_stucture(book_id, calibrepath):
db.session.connection().connection.connection.create_function("title_sort", 1, db.title_sort)
book = db.session.query(db.Books).filter(db.Books.id == book_id).first()
path = os.path.join(calibrepath, book.path)
authordir = book.path.split(os.sep)[0]
new_authordir = get_valid_filename(book.authors[0].name, False)
titledir = book.path.split(os.sep)[1]
new_titledir = get_valid_filename(book.title, False) + " (" + str(book_id) + ")"
if titledir != new_titledir:
new_title_path = os.path.join(os.path.dirname(path), new_titledir)
os.rename(path, new_title_path)
path = new_title_path
book.path = book.path.split(os.sep)[0] + os.sep + new_titledir
if authordir != new_authordir:
new_author_path = os.path.join(os.path.join(calibrepath, new_authordir), os.path.basename(path))
os.renames(path, new_author_path)
book.path = new_authordir + os.sep + book.path.split(os.sep)[1]
db.session.commit()
def file_to_list(file):
return [x.strip() for x in open(file, 'r') if not x.startswith('#EXT')]
def one_minus_two(one, two):
return [x for x in one if x not in set(two)]
def reduce_dirs(delete_files, new_list):
new_delete = []
for file in delete_files:
parts = file.split(os.sep)
sub = ''
for i in range(len(parts)):
sub = os.path.join(sub, parts[i])
if sub == '':
sub = os.sep
count = 0
for song in new_list:
if song.startswith(sub):
count += 1
break
if count == 0:
if sub != '\\':
new_delete.append(sub)
break
return list(set(new_delete))
def reduce_files(remove_items, exclude_items):
rf = []
for item in remove_items:
if not item in exclude_items:
rf.append(item)
return rf
def moveallfiles(root_src_dir, root_dst_dir):
change_permissions = True
if sys.platform == "win32" or sys.platform == "darwin":
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change_permissions=False
else:
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app.logger.debug('Update on OS-System : '+sys.platform )
#print('OS-System: '+sys.platform )
new_permissions=os.stat(root_dst_dir)
#print new_permissions
for src_dir, dirs, files in os.walk(root_src_dir):
dst_dir = src_dir.replace(root_src_dir, root_dst_dir, 1)
if not os.path.exists(dst_dir):
os.makedirs(dst_dir)
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#print('Create-Dir: '+dst_dir)
if change_permissions:
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#print('Permissions: User '+str(new_permissions.st_uid)+' Group '+str(new_permissions.st_uid))
os.chown(dst_dir,new_permissions.st_uid,new_permissions.st_gid)
for file_ in files:
src_file = os.path.join(src_dir, file_)
dst_file = os.path.join(dst_dir, file_)
if os.path.exists(dst_file):
if change_permissions:
permission=os.stat(dst_file)
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#print('Remove file before copy: '+dst_file)
os.remove(dst_file)
else:
if change_permissions:
permission=new_permissions
shutil.move(src_file, dst_dir)
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#print('Move File '+src_file+' to '+dst_dir)
if change_permissions:
try:
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os.chown(dst_file, permission.st_uid, permission.st_uid)
#print('Permissions: User '+str(new_permissions.st_uid)+' Group '+str(new_permissions.st_uid))
except:
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e = sys.exc_info()
#print('Fail '+str(dst_file)+' error: '+str(e))
return
def update_source(source,destination):
# destination files
old_list=list()
exclude = (['vendor' + os.sep + 'kindlegen.exe','vendor' + os.sep + 'kindlegen','/app.db','vendor','/update.py'])
for root, dirs, files in os.walk(destination, topdown=True):
for name in files:
old_list.append(os.path.join(root, name).replace(destination, ''))
for name in dirs:
old_list.append(os.path.join(root, name).replace(destination, ''))
# source files
new_list = list()
for root, dirs, files in os.walk(source, topdown=True):
for name in files:
new_list.append(os.path.join(root, name).replace(source, ''))
for name in dirs:
new_list.append(os.path.join(root, name).replace(source, ''))
delete_files = one_minus_two(old_list, new_list)
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#print('raw delete list', delete_files)
rf= reduce_files(delete_files, exclude)
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#print('reduced delete list', rf)
remove_items = reduce_dirs(rf, new_list)
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#print('delete files', remove_items)
moveallfiles(source, destination)
for item in remove_items:
item_path = os.path.join(destination, item[1:])
if os.path.isdir(item_path):
print("Delete dir "+ item_path)
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shutil.rmtree(item_path)
else:
try:
print("Delete file "+ item_path)
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os.remove(item_path)
except:
print("Could not remove:"+item_path)
shutil.rmtree(source, ignore_errors=True)