mirror of
https://github.com/janeczku/calibre-web
synced 2024-12-12 11:10:30 +00:00
352 lines
17 KiB
Python
352 lines
17 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
# This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
|
|
# Copyright (C) 2020 pwr
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
import os
|
|
import re
|
|
import glob
|
|
from shutil import copyfile, copyfileobj
|
|
from markupsafe import escape
|
|
from time import time
|
|
from uuid import uuid4
|
|
|
|
from sqlalchemy.exc import SQLAlchemyError
|
|
from flask_babel import lazy_gettext as N_
|
|
|
|
from cps.services.worker import CalibreTask
|
|
from cps import db
|
|
from cps import logger, config
|
|
from cps.subproc_wrapper import process_open
|
|
from flask_babel import gettext as _
|
|
from cps.kobo_sync_status import remove_synced_book
|
|
from cps.ub import init_db_thread
|
|
from cps.file_helper import get_temp_dir
|
|
|
|
from cps.tasks.mail import TaskEmail
|
|
from cps import gdriveutils, helper
|
|
from cps.constants import SUPPORTED_CALIBRE_BINARIES
|
|
from cps.string_helper import strip_whitespaces
|
|
|
|
log = logger.create()
|
|
|
|
current_milli_time = lambda: int(round(time() * 1000))
|
|
|
|
|
|
class TaskConvert(CalibreTask):
|
|
def __init__(self, file_path, book_id, task_message, settings, ereader_mail, user=None):
|
|
super(TaskConvert, self).__init__(task_message)
|
|
self.worker_thread = None
|
|
self.file_path = file_path
|
|
self.book_id = book_id
|
|
self.title = ""
|
|
self.settings = settings
|
|
self.ereader_mail = ereader_mail
|
|
self.user = user
|
|
|
|
self.results = dict()
|
|
|
|
def run(self, worker_thread):
|
|
self.worker_thread = worker_thread
|
|
if config.config_use_google_drive:
|
|
worker_db = db.CalibreDB(expire_on_commit=False, init=True)
|
|
cur_book = worker_db.get_book(self.book_id)
|
|
self.title = cur_book.title
|
|
data = worker_db.get_book_format(self.book_id, self.settings['old_book_format'])
|
|
df = gdriveutils.getFileFromEbooksFolder(cur_book.path,
|
|
data.name + "." + self.settings['old_book_format'].lower())
|
|
df_cover = gdriveutils.getFileFromEbooksFolder(cur_book.path, "cover.jpg")
|
|
if df:
|
|
datafile_cover = None
|
|
datafile = os.path.join(config.get_book_path(),
|
|
cur_book.path,
|
|
data.name + "." + self.settings['old_book_format'].lower())
|
|
if df_cover:
|
|
datafile_cover = os.path.join(config.get_book_path(),
|
|
cur_book.path, "cover.jpg")
|
|
if not os.path.exists(os.path.join(config.get_book_path(), cur_book.path)):
|
|
os.makedirs(os.path.join(config.get_book_path(), cur_book.path))
|
|
df.GetContentFile(datafile)
|
|
if df_cover:
|
|
df_cover.GetContentFile(datafile_cover)
|
|
worker_db.session.close()
|
|
else:
|
|
# ToDo Include cover in error handling
|
|
error_message = _("%(format)s not found on Google Drive: %(fn)s",
|
|
format=self.settings['old_book_format'],
|
|
fn=data.name + "." + self.settings['old_book_format'].lower())
|
|
worker_db.session.close()
|
|
return self._handleError(error_message)
|
|
|
|
filename = self._convert_ebook_format()
|
|
if config.config_use_google_drive:
|
|
os.remove(self.file_path + '.' + self.settings['old_book_format'].lower())
|
|
if df_cover:
|
|
os.remove(os.path.join(config.config_calibre_dir, cur_book.path, "cover.jpg"))
|
|
|
|
if filename:
|
|
if config.config_use_google_drive:
|
|
# Upload files to gdrive
|
|
gdriveutils.updateGdriveCalibreFromLocal()
|
|
self._handleSuccess()
|
|
if self.ereader_mail:
|
|
# if we're sending to E-Reader after converting, create a one-off task and run it immediately
|
|
# todo: figure out how to incorporate this into the progress
|
|
try:
|
|
EmailText = N_(u"%(book)s send to E-Reader", book=escape(self.title))
|
|
for email in self.ereader_mail.split(','):
|
|
email = strip_whitespaces(email)
|
|
worker_thread.add(self.user, TaskEmail(self.settings['subject'],
|
|
self.results["path"],
|
|
filename,
|
|
self.settings,
|
|
email,
|
|
EmailText,
|
|
self.settings['body'],
|
|
id=self.book_id,
|
|
internal=True)
|
|
)
|
|
except Exception as ex:
|
|
return self._handleError(str(ex))
|
|
|
|
def _convert_ebook_format(self):
|
|
error_message = None
|
|
local_db = db.CalibreDB(expire_on_commit=False, init=True)
|
|
file_path = self.file_path
|
|
book_id = self.book_id
|
|
format_old_ext = '.' + self.settings['old_book_format'].lower()
|
|
format_new_ext = '.' + self.settings['new_book_format'].lower()
|
|
|
|
# check to see if destination format already exists - or if book is in database
|
|
# if it does - mark the conversion task as complete and return a success
|
|
# this will allow to send to E-Reader workflow to continue to work
|
|
if os.path.isfile(file_path + format_new_ext) or\
|
|
local_db.get_book_format(self.book_id, self.settings['new_book_format']):
|
|
log.info("Book id %d already converted to %s", book_id, format_new_ext)
|
|
cur_book = local_db.get_book(book_id)
|
|
self.title = cur_book.title
|
|
self.results['path'] = cur_book.path
|
|
self.results['title'] = self.title
|
|
new_format = local_db.session.query(db.Data).filter(db.Data.book == book_id)\
|
|
.filter(db.Data.format == self.settings['new_book_format'].upper()).one_or_none()
|
|
if not new_format:
|
|
new_format = db.Data(name=os.path.basename(file_path),
|
|
book_format=self.settings['new_book_format'].upper(),
|
|
book=book_id, uncompressed_size=os.path.getsize(file_path + format_new_ext))
|
|
try:
|
|
local_db.session.merge(new_format)
|
|
local_db.session.commit()
|
|
except SQLAlchemyError as e:
|
|
local_db.session.rollback()
|
|
log.error("Database error: %s", e)
|
|
local_db.session.close()
|
|
self._handleError(N_("Oops! Database Error: %(error)s.", error=e))
|
|
return
|
|
self._handleSuccess()
|
|
local_db.session.close()
|
|
return os.path.basename(file_path + format_new_ext)
|
|
else:
|
|
log.info("Book id %d - target format of %s does not exist. Moving forward with convert.",
|
|
book_id,
|
|
format_new_ext)
|
|
|
|
if config.config_kepubifypath and format_old_ext == '.epub' and format_new_ext == '.kepub':
|
|
check, error_message = self._convert_kepubify(file_path,
|
|
format_old_ext,
|
|
format_new_ext)
|
|
else:
|
|
# check if calibre converter-executable is existing
|
|
if not os.path.exists(config.config_converterpath):
|
|
self._handleError(N_("Calibre ebook-convert %(tool)s not found", tool=config.config_converterpath))
|
|
return
|
|
has_cover = local_db.get_book(book_id).has_cover
|
|
check, error_message = self._convert_calibre(file_path, format_old_ext, format_new_ext, has_cover)
|
|
|
|
if check == 0:
|
|
cur_book = local_db.get_book(book_id)
|
|
if os.path.isfile(file_path + format_new_ext):
|
|
new_format = local_db.session.query(db.Data).filter(db.Data.book == book_id) \
|
|
.filter(db.Data.format == self.settings['new_book_format'].upper()).one_or_none()
|
|
if not new_format:
|
|
new_format = db.Data(name=cur_book.data[0].name,
|
|
book_format=self.settings['new_book_format'].upper(),
|
|
book=book_id, uncompressed_size=os.path.getsize(file_path + format_new_ext))
|
|
try:
|
|
local_db.session.merge(new_format)
|
|
local_db.session.commit()
|
|
if self.settings['new_book_format'].upper() in ['KEPUB', 'EPUB', 'EPUB3']:
|
|
ub_session = init_db_thread()
|
|
remove_synced_book(book_id, True, ub_session)
|
|
ub_session.close()
|
|
except SQLAlchemyError as e:
|
|
local_db.session.rollback()
|
|
log.error("Database error: %s", e)
|
|
local_db.session.close()
|
|
self._handleError(error_message)
|
|
return
|
|
self.results['path'] = cur_book.path
|
|
self.title = cur_book.title
|
|
self.results['title'] = self.title
|
|
if not config.config_use_google_drive:
|
|
self._handleSuccess()
|
|
return os.path.basename(file_path + format_new_ext)
|
|
else:
|
|
error_message = N_('%(format)s format not found on disk', format=format_new_ext.upper())
|
|
local_db.session.close()
|
|
log.info("ebook converter failed with error while converting book")
|
|
if not error_message:
|
|
error_message = N_('Ebook converter failed with unknown error')
|
|
else:
|
|
log.error(error_message)
|
|
self._handleError(error_message)
|
|
return
|
|
|
|
def _convert_kepubify(self, file_path, format_old_ext, format_new_ext):
|
|
if config.config_embed_metadata and config.config_binariesdir:
|
|
tmp_dir, temp_file_name = helper.do_calibre_export(self.book_id, format_old_ext[1:])
|
|
filename = os.path.join(tmp_dir, temp_file_name + format_old_ext)
|
|
temp_file_path = tmp_dir
|
|
else:
|
|
filename = file_path + format_old_ext
|
|
temp_file_path = os.path.dirname(file_path)
|
|
quotes = [1, 3]
|
|
command = [config.config_kepubifypath, filename, '-o', temp_file_path, '-i']
|
|
try:
|
|
p = process_open(command, quotes)
|
|
except OSError as e:
|
|
return 1, N_("Kepubify-converter failed: %(error)s", error=e)
|
|
self.progress = 0.01
|
|
while True:
|
|
nextline = p.stdout.readlines()
|
|
nextline = [x.strip('\n') for x in nextline if x != '\n']
|
|
for line in nextline:
|
|
log.debug(line)
|
|
if p.poll() is not None:
|
|
break
|
|
|
|
# process returncode
|
|
check = p.returncode
|
|
|
|
# move file
|
|
if check == 0:
|
|
converted_file = glob.glob(glob.escape(os.path.splitext(filename)[0]) + "*.kepub.epub")
|
|
if len(converted_file) == 1:
|
|
copyfile(converted_file[0], (file_path + format_new_ext))
|
|
os.unlink(converted_file[0])
|
|
else:
|
|
return 1, N_("Converted file not found or more than one file in folder %(folder)s",
|
|
folder=os.path.dirname(file_path))
|
|
return check, None
|
|
|
|
def _convert_calibre(self, file_path, format_old_ext, format_new_ext, has_cover):
|
|
path_tmp_opf = None
|
|
try:
|
|
# path_tmp_opf = self._embed_metadata()
|
|
if config.config_embed_metadata:
|
|
quotes = [5]
|
|
tmp_dir = get_temp_dir()
|
|
calibredb_binarypath = os.path.join(config.config_binariesdir, SUPPORTED_CALIBRE_BINARIES["calibredb"])
|
|
my_env = os.environ.copy()
|
|
if config.config_calibre_split:
|
|
my_env['CALIBRE_OVERRIDE_DATABASE_PATH'] = os.path.join(config.config_calibre_dir, "metadata.db")
|
|
library_path = config.config_calibre_split_dir
|
|
else:
|
|
library_path = config.config_calibre_dir
|
|
|
|
opf_command = [calibredb_binarypath, 'show_metadata', '--as-opf', str(self.book_id),
|
|
'--with-library', library_path]
|
|
p = process_open(opf_command, quotes, my_env, newlines=False)
|
|
lines = list()
|
|
while p.poll() is None:
|
|
lines.append(p.stdout.readline())
|
|
check = p.returncode
|
|
calibre_traceback = p.stderr.readlines()
|
|
if check == 0:
|
|
path_tmp_opf = os.path.join(tmp_dir, "metadata_" + str(uuid4()) + ".opf")
|
|
with open(path_tmp_opf, 'wb') as fd:
|
|
fd.write(b''.join(lines))
|
|
else:
|
|
error_message = ""
|
|
for ele in calibre_traceback:
|
|
if not ele.startswith('Traceback') and not ele.startswith(' File'):
|
|
error_message = N_("Calibre failed with error: %(error)s", error=ele)
|
|
return check, error_message
|
|
quotes = [1, 2]
|
|
quotes_index = 3
|
|
command = [config.config_converterpath, (file_path + format_old_ext),
|
|
(file_path + format_new_ext)]
|
|
if config.config_embed_metadata:
|
|
quotes.append(4)
|
|
quotes_index = 5
|
|
command.extend(['--from-opf', path_tmp_opf])
|
|
if has_cover:
|
|
quotes.append(6)
|
|
command.extend(['--cover', os.path.join(os.path.dirname(file_path), 'cover.jpg')])
|
|
quotes_index = 7
|
|
if config.config_calibre:
|
|
parameters = re.findall(r"(--[\w-]+)(?:(\s(?:(\".+\")|(?:.+?)))(?:\s|$))?",
|
|
config.config_calibre, re.IGNORECASE | re.UNICODE)
|
|
if parameters:
|
|
for param in parameters:
|
|
command.append(strip_whitespaces(param[0]))
|
|
quotes_index += 1
|
|
if param[1] != "":
|
|
parsed = strip_whitespaces(param[1]).strip("\"")
|
|
command.append(parsed)
|
|
quotes.append(quotes_index)
|
|
quotes_index += 1
|
|
p = process_open(command, quotes, newlines=False)
|
|
except OSError as e:
|
|
return 1, N_("Ebook-converter failed: %(error)s", error=e)
|
|
|
|
while p.poll() is None:
|
|
nextline = p.stdout.readline()
|
|
if isinstance(nextline, bytes):
|
|
nextline = nextline.decode('utf-8', errors="ignore").strip('\r\n')
|
|
if nextline:
|
|
log.debug(nextline)
|
|
# parse progress string from calibre-converter
|
|
progress = re.search(r"(\d+)%\s.*", nextline)
|
|
if progress:
|
|
self.progress = int(progress.group(1)) / 100
|
|
if config.config_use_google_drive:
|
|
self.progress *= 0.9
|
|
|
|
# process returncode
|
|
check = p.returncode
|
|
calibre_traceback = p.stderr.readlines()
|
|
error_message = ""
|
|
for ele in calibre_traceback:
|
|
ele = ele.decode('utf-8', errors="ignore").strip('\n')
|
|
log.debug(ele)
|
|
if not ele.startswith('Traceback') and not ele.startswith(' File'):
|
|
error_message = N_("Calibre failed with error: %(error)s", error=ele)
|
|
return check, error_message
|
|
|
|
@property
|
|
def name(self):
|
|
return N_("Convert")
|
|
|
|
def __str__(self):
|
|
if self.ereader_mail:
|
|
return "Convert Book {} and mail it to {}".format(self.book_id, self.ereader_mail)
|
|
else:
|
|
return "Convert Book {}".format(self.book_id)
|
|
|
|
@property
|
|
def is_cancellable(self):
|
|
return False
|