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mirror of https://github.com/janeczku/calibre-web synced 2024-11-25 02:57:22 +00:00
calibre-web/cps/helper.py
Ozzieisaacs 4230226716 Link fixes
Fixes reader button visible in detail view
Fix formats to convert (added htmlz)
Fix logger in updater
Added request "v3" of github api on update
Fix quotes parameter on external calls
E-Mail logger working more stable (also on python3)
Routing fixes
Change import in ub
2019-02-16 07:23:36 +01:00

559 lines
24 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
# Copyright (C) 2012-2019 cervinko, idalin, SiphonSquirrel, ouzklcn, akushsky,
# OzzieIsaacs, bodybybuddha, jkrehm, matthazinski, janeczku
#
# 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/>.
from cps import config, global_WorkerThread, get_locale
from flask import current_app as app
from tempfile import gettempdir
import sys
import os
import re
import db
import unicodedata
import worker
import time
from flask import send_from_directory, make_response, redirect, abort
from flask_babel import gettext as _
from flask_login import current_user
from babel.dates import format_datetime
from datetime import datetime
import shutil
import requests
try:
import gdriveutils as gd
except ImportError:
pass
import random
from subproc_wrapper import process_open
import ub
try:
import unidecode
use_unidecode = True
except ImportError:
use_unidecode = False
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()
# Convert existing book entry to new format
def convert_book_format(book_id, calibrepath, old_book_format, new_book_format, user_id, kindle_mail=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 == old_book_format).first()
if not data:
error_message = _(u"%(format)s format not found for book id: %(book)d", format=old_book_format, book=book_id)
app.logger.error("convert_book_format: " + error_message)
return error_message
if config.config_use_google_drive:
df = gd.getFileFromEbooksFolder(book.path, data.name + "." + old_book_format.lower())
if df:
datafile = os.path.join(calibrepath, book.path, data.name + u"." + old_book_format.lower())
if not os.path.exists(os.path.join(calibrepath, book.path)):
os.makedirs(os.path.join(calibrepath, book.path))
df.GetContentFile(datafile)
else:
error_message = _(u"%(format)s not found on Google Drive: %(fn)s",
format=old_book_format, fn=data.name + "." + old_book_format.lower())
return error_message
file_path = os.path.join(calibrepath, book.path, data.name)
if os.path.exists(file_path + "." + old_book_format.lower()):
# read settings and append converter task to queue
if kindle_mail:
settings = ub.get_mail_settings()
settings['subject'] = _('Send to Kindle') # pretranslate Subject for e-mail
settings['body'] = _(u'This e-mail has been sent via Calibre-Web.')
# text = _(u"%(format)s: %(book)s", format=new_book_format, book=book.title)
else:
settings = dict()
text = (u"%s -> %s: %s" % (old_book_format, new_book_format, book.title))
settings['old_book_format'] = old_book_format
settings['new_book_format'] = new_book_format
global_WorkerThread.add_convert(file_path, book.id, user_id, text, settings, kindle_mail)
return None
else:
error_message = _(u"%(format)s not found: %(fn)s",
format=old_book_format, fn=data.name + "." + old_book_format.lower())
return error_message
def send_test_mail(kindle_mail, user_name):
global_WorkerThread.add_email(_(u'Calibre-Web test e-mail'),None, None, ub.get_mail_settings(),
kindle_mail, user_name, _(u"Test e-mail"),
_(u'This e-mail has been sent via Calibre-Web.'))
return
# Send registration email or password reset email, depending on parameter resend (False means welcome email)
def send_registration_mail(e_mail, user_name, default_password, resend=False):
text = "Hello %s!\r\n" % user_name
if not resend:
text += "Your new account at Calibre-Web has been created. Thanks for joining us!\r\n"
text += "Please log in to your account using the following informations:\r\n"
text += "User name: %s\n" % user_name
text += "Password: %s\r\n" % default_password
text += "Don't forget to change your password after first login.\r\n"
text += "Sincerely\r\n\r\n"
text += "Your Calibre-Web team"
global_WorkerThread.add_email(_(u'Get Started with Calibre-Web'),None, None, ub.get_mail_settings(),
e_mail, user_name, _(u"Registration e-mail for user: %(name)s", name=user_name), text)
return
def check_send_to_kindle(entry):
"""
returns all available book formats for sending to Kindle
"""
if len(entry.data):
bookformats=list()
if config.config_ebookconverter == 0:
# no converter - only for mobi and pdf formats
for ele in iter(entry.data):
if 'MOBI' in ele.format:
bookformats.append({'format':'Mobi','convert':0,'text':_('Send %(format)s to Kindle',format='Mobi')})
if 'PDF' in ele.format:
bookformats.append({'format':'Pdf','convert':0,'text':_('Send %(format)s to Kindle',format='Pdf')})
if 'AZW' in ele.format:
bookformats.append({'format':'Azw','convert':0,'text':_('Send %(format)s to Kindle',format='Azw')})
if 'AZW3' in ele.format:
bookformats.append({'format':'Azw3','convert':0,'text':_('Send %(format)s to Kindle',format='Azw3')})
else:
formats = list()
for ele in iter(entry.data):
formats.append(ele.format)
if 'MOBI' in formats:
bookformats.append({'format': 'Mobi','convert':0,'text':_('Send %(format)s to Kindle',format='Mobi')})
if 'AZW' in formats:
bookformats.append({'format': 'Azw','convert':0,'text':_('Send %(format)s to Kindle',format='Azw')})
if 'AZW3' in formats:
bookformats.append({'format': 'Azw3','convert':0,'text':_('Send %(format)s to Kindle',format='Azw3')})
if 'PDF' in formats:
bookformats.append({'format': 'Pdf','convert':0,'text':_('Send %(format)s to Kindle',format='Pdf')})
if config.config_ebookconverter >= 1:
if 'EPUB' in formats and not 'MOBI' in formats:
bookformats.append({'format': 'Mobi','convert':1,
'text':_('Convert %(orig)s to %(format)s and send to Kindle',orig='Epub',format='Mobi')})
if config.config_ebookconverter == 2:
if 'EPUB' in formats and not 'AZW3' in formats:
bookformats.append({'format': 'Azw3','convert':1,
'text':_('Convert %(orig)s to %(format)s and send to Kindle',orig='Epub',format='Azw3')})
return bookformats
else:
app.logger.error(u'Cannot find book entry %d', entry.id)
return None
# Check if a reader is existing for any of the book formats, if not, return empty list, otherwise return
# list with supported formats
def check_read_formats(entry):
EXTENSIONS_READER = {'TXT', 'PDF', 'EPUB', 'ZIP', 'CBZ', 'TAR', 'CBT', 'RAR', 'CBR'}
bookformats = list()
if len(entry.data):
for ele in iter(entry.data):
if ele.format in EXTENSIONS_READER:
bookformats.append(ele.format.lower())
return bookformats
# Files are processed in the following order/priority:
# 1: If Mobi file is existing, it's directly send to kindle email,
# 2: If Epub file is existing, it's converted and send to kindle email,
# 3: If Pdf file is existing, it's directly send to kindle email
def send_mail(book_id, book_format, convert, kindle_mail, calibrepath, user_id):
"""Send email with attachments"""
book = db.session.query(db.Books).filter(db.Books.id == book_id).first()
if convert:
# returns None if success, otherwise errormessage
return convert_book_format(book_id, calibrepath, u'epub', book_format.lower(), user_id, kindle_mail)
else:
for entry in iter(book.data):
if entry.format.upper() == book_format.upper():
result = entry.name + '.' + book_format.lower()
global_WorkerThread.add_email(_(u"Send to Kindle"), book.path, result, ub.get_mail_settings(),
kindle_mail, user_id, _(u"E-mail: %(book)s", book=book.title),
_(u'This e-mail has been sent via Calibre-Web.'))
return
return _(u"The requested file could not be read. Maybe wrong permissions?")
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.
"""
if value[-1:] == u'.':
value = value[:-1]+u'_'
value = value.replace("/", "_").replace(":", "_").strip('\0')
if use_unidecode:
value = (unidecode.unidecode(value)).strip()
else:
value = value.replace(u'§', u'SS')
value = value.replace(u'ß', u'ss')
value = unicodedata.normalize('NFKD', value)
re_slugify = re.compile('[\W\s-]', re.UNICODE)
if isinstance(value, str): # Python3 str, Python2 unicode
value = re_slugify.sub('', value).strip()
else:
value = unicode(re_slugify.sub('', value).strip())
if replace_whitespace:
# *+:\"/<>? are replaced by _
value = re.sub(r'[\*\+:\\\"/<>\?]+', u'_', value, flags=re.U)
# pipe has to be replaced with comma
value = re.sub(r'[\|]+', u',', value, flags=re.U)
value = value[:128]
if not value:
raise ValueError("Filename cannot be empty")
return value
def get_sorted_author(value):
try:
if ',' not in value:
regexes = ["^(JR|SR)\.?$", "^I{1,3}\.?$", "^IV\.?$"]
combined = "(" + ")|(".join(regexes) + ")"
value = value.split(" ")
if re.match(combined, value[-1].upper()):
value2 = value[-2] + ", " + " ".join(value[:-2]) + " " + value[-1]
elif len(value) == 1:
value2 = value[0]
else:
value2 = value[-1] + ", " + " ".join(value[:-1])
else:
value2 = value
except Exception:
app.logger.error("Sorting author " + str(value) + "failed")
value2 = value
return value2
# Deletes a book fro the local filestorage, returns True if deleting is successfull, otherwise false
def delete_book_file(book, calibrepath, book_format=None):
# check that path is 2 elements deep, check that target path has no subfolders
if book.path.count('/') == 1:
path = os.path.join(calibrepath, book.path)
if book_format:
for file in os.listdir(path):
if file.upper().endswith("."+book_format):
os.remove(os.path.join(path, file))
else:
if os.path.isdir(path):
if len(next(os.walk(path))[1]):
app.logger.error(
"Deleting book " + str(book.id) + " failed, path has subfolders: " + book.path)
return False
shutil.rmtree(path, ignore_errors=True)
return True
else:
app.logger.error("Deleting book " + str(book.id) + " failed, book path not valid: " + book.path)
return False
def update_dir_structure_file(book_id, calibrepath, first_author):
localbook = db.session.query(db.Books).filter(db.Books.id == book_id).first()
path = os.path.join(calibrepath, localbook.path)
authordir = localbook.path.split('/')[0]
if first_author:
new_authordir = get_valid_filename(first_author)
else:
new_authordir = get_valid_filename(localbook.authors[0].name)
titledir = localbook.path.split('/')[1]
new_titledir = get_valid_filename(localbook.title) + " (" + str(book_id) + ")"
if titledir != new_titledir:
try:
new_title_path = os.path.join(os.path.dirname(path), new_titledir)
if not os.path.exists(new_title_path):
os.renames(path, new_title_path)
else:
app.logger.info("Copying title: " + path + " into existing: " + new_title_path)
for dir_name, subdir_list, file_list in os.walk(path):
for file in file_list:
os.renames(os.path.join(dir_name, file),
os.path.join(new_title_path + dir_name[len(path):], file))
path = new_title_path
localbook.path = localbook.path.split('/')[0] + '/' + new_titledir
except OSError as ex:
app.logger.error("Rename title from: " + path + " to " + new_title_path + ": " + str(ex))
app.logger.debug(ex, exc_info=True)
return _("Rename title from: '%(src)s' to '%(dest)s' failed with error: %(error)s",
src=path, dest=new_title_path, error=str(ex))
if authordir != new_authordir:
try:
new_author_path = os.path.join(calibrepath, new_authordir, os.path.basename(path))
os.renames(path, new_author_path)
localbook.path = new_authordir + '/' + localbook.path.split('/')[1]
except OSError as ex:
app.logger.error("Rename author from: " + path + " to " + new_author_path + ": " + str(ex))
app.logger.debug(ex, exc_info=True)
return _("Rename author from: '%(src)s' to '%(dest)s' failed with error: %(error)s",
src=path, dest=new_author_path, error=str(ex))
# Rename all files from old names to new names
if authordir != new_authordir or titledir != new_titledir:
try:
for file_format in localbook.data:
path_name = os.path.join(calibrepath, new_authordir, os.path.basename(path))
new_name = get_valid_filename(localbook.title) + ' - ' + get_valid_filename(new_authordir)
os.renames(os.path.join(path_name, file_format.name + '.' + file_format.format.lower()),
os.path.join(path_name,new_name + '.' + file_format.format.lower()))
file_format.name = new_name
except OSError as ex:
app.logger.error("Rename file in path " + path + " to " + new_name + ": " + str(ex))
app.logger.debug(ex, exc_info=True)
return _("Rename file in path '%(src)s' to '%(dest)s' failed with error: %(error)s",
src=path, dest=new_name, error=str(ex))
return False
def update_dir_structure_gdrive(book_id, first_author):
error = False
book = db.session.query(db.Books).filter(db.Books.id == book_id).first()
authordir = book.path.split('/')[0]
if first_author:
new_authordir = get_valid_filename(first_author)
else:
new_authordir = get_valid_filename(book.authors[0].name)
titledir = book.path.split('/')[1]
new_titledir = get_valid_filename(book.title) + " (" + str(book_id) + ")"
if titledir != new_titledir:
gFile = gd.getFileFromEbooksFolder(os.path.dirname(book.path), titledir)
if gFile:
gFile['title'] = new_titledir
gFile.Upload()
book.path = book.path.split('/')[0] + '/' + new_titledir
gd.updateDatabaseOnEdit(gFile['id'], book.path) # only child folder affected
else:
error = _(u'File %(file)s not found on Google Drive', file=book.path) # file not found
if authordir != new_authordir:
gFile = gd.getFileFromEbooksFolder(os.path.dirname(book.path), titledir)
if gFile:
gd.moveGdriveFolderRemote(gFile,new_authordir)
book.path = new_authordir + '/' + book.path.split('/')[1]
gd.updateDatabaseOnEdit(gFile['id'], book.path)
else:
error = _(u'File %(file)s not found on Google Drive', file=authordir) # file not found
# Rename all files from old names to new names
# ToDo: Rename also all bookfiles with new author name and new title name
'''
if authordir != new_authordir or titledir != new_titledir:
for format in book.data:
# path_name = os.path.join(calibrepath, new_authordir, os.path.basename(path))
new_name = get_valid_filename(book.title) + ' - ' + get_valid_filename(book)
format.name = new_name
if gFile:
pass
else:
error = _(u'File %(file)s not found on Google Drive', file=format.name) # file not found
break'''
return error
def delete_book_gdrive(book, book_format):
error= False
if book_format:
name = ''
for entry in book.data:
if entry.format.upper() == book_format:
name = entry.name + '.' + book_format
gFile = gd.getFileFromEbooksFolder(book.path, name)
else:
gFile = gd.getFileFromEbooksFolder(os.path.dirname(book.path),book.path.split('/')[1])
if gFile:
gd.deleteDatabaseEntry(gFile['id'])
gFile.Trash()
else:
error =_(u'Book path %(path)s not found on Google Drive', path=book.path) # file not found
return error
def generate_random_password():
s = "abcdefghijklmnopqrstuvwxyz01234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ!@#$%&*()?"
passlen = 8
return "".join(random.sample(s,passlen ))
################################## External interface
def update_dir_stucture(book_id, calibrepath, first_author = None):
if config.config_use_google_drive:
return update_dir_structure_gdrive(book_id, first_author)
else:
return update_dir_structure_file(book_id, calibrepath, first_author)
def delete_book(book, calibrepath, book_format):
if config.config_use_google_drive:
return delete_book_gdrive(book, book_format)
else:
return delete_book_file(book, calibrepath, book_format)
def get_book_cover(cover_path):
if config.config_use_google_drive:
try:
if not gd.is_gdrive_ready():
return send_from_directory(os.path.join(os.path.dirname(__file__), "static"), "generic_cover.jpg")
path=gd.get_cover_via_gdrive(cover_path)
if path:
return redirect(path)
else:
app.logger.error(cover_path + '/cover.jpg not found on Google Drive')
return send_from_directory(os.path.join(os.path.dirname(__file__), "static"), "generic_cover.jpg")
except Exception as e:
app.logger.error("Error Message: " + e.message)
app.logger.exception(e)
# traceback.print_exc()
return send_from_directory(os.path.join(os.path.dirname(__file__), "static"),"generic_cover.jpg")
else:
return send_from_directory(os.path.join(config.config_calibre_dir, cover_path), "cover.jpg")
# saves book cover to gdrive or locally
def save_cover(url, book_path):
img = requests.get(url)
if img.headers.get('content-type') != 'image/jpeg':
app.logger.error("Cover is no jpg file, can't save")
return False
if config.config_use_google_drive:
tmpDir = gettempdir()
f = open(os.path.join(tmpDir, "uploaded_cover.jpg"), "wb")
f.write(img.content)
f.close()
gd.uploadFileToEbooksFolder(os.path.join(book_path, 'cover.jpg'), os.path.join(tmpDir, f.name))
app.logger.info("Cover is saved on Google Drive")
return True
f = open(os.path.join(config.config_calibre_dir, book_path, "cover.jpg"), "wb")
f.write(img.content)
f.close()
app.logger.info("Cover is saved")
return True
def do_download_file(book, book_format, data, headers):
if config.config_use_google_drive:
startTime = time.time()
df = gd.getFileFromEbooksFolder(book.path, data.name + "." + book_format)
app.logger.debug(time.time() - startTime)
if df:
return gd.do_gdrive_download(df, headers)
else:
abort(404)
else:
filename = os.path.join(config.config_calibre_dir, book.path)
if not os.path.isfile(os.path.join(filename, data.name + "." + book_format)):
# ToDo: improve error handling
app.logger.error('File not found: %s' % os.path.join(filename, data.name + "." + book_format))
response = make_response(send_from_directory(filename, data.name + "." + book_format))
response.headers = headers
return response
##################################
def check_unrar(unrarLocation):
error = False
if os.path.exists(unrarLocation):
try:
if sys.version_info < (3, 0):
unrarLocation = unrarLocation.encode(sys.getfilesystemencoding())
p = process_open(unrarLocation)
p.wait()
for lines in p.stdout.readlines():
if isinstance(lines, bytes):
lines = lines.decode('utf-8')
value=re.search('UNRAR (.*) freeware', lines)
if value:
version = value.group(1)
except OSError as e:
error = True
app.logger.exception(e)
version =_(u'Error excecuting UnRar')
else:
version = _(u'Unrar binary file not found')
error=True
return (error, version)
def json_serial(obj):
"""JSON serializer for objects not serializable by default json code"""
if isinstance(obj, (datetime)):
return obj.isoformat()
raise TypeError ("Type %s not serializable" % type(obj))
def render_task_status(tasklist):
#helper function to apply localize status information in tasklist entries
renderedtasklist=list()
# task2 = task
for task in tasklist:
if task['user'] == current_user.nickname or current_user.role_admin():
# task2 = copy.deepcopy(task) # = task
if task['formStarttime']:
task['starttime'] = format_datetime(task['formStarttime'], format='short', locale=get_locale())
# task2['formStarttime'] = ""
else:
if 'starttime' not in task:
task['starttime'] = ""
# localize the task status
if isinstance( task['stat'], int ):
if task['stat'] == worker.STAT_WAITING:
task['status'] = _(u'Waiting')
elif task['stat'] == worker.STAT_FAIL:
task['status'] = _(u'Failed')
elif task['stat'] == worker.STAT_STARTED:
task['status'] = _(u'Started')
elif task['stat'] == worker.STAT_FINISH_SUCCESS:
task['status'] = _(u'Finished')
else:
task['status'] = _(u'Unknown Status')
# localize the task type
if isinstance( task['taskType'], int ):
if task['taskType'] == worker.TASK_EMAIL:
task['taskMessage'] = _(u'E-mail: ') + task['taskMess']
elif task['taskType'] == worker.TASK_CONVERT:
task['taskMessage'] = _(u'Convert: ') + task['taskMess']
elif task['taskType'] == worker.TASK_UPLOAD:
task['taskMessage'] = _(u'Upload: ') + task['taskMess']
elif task['taskType'] == worker.TASK_CONVERT_ANY:
task['taskMessage'] = _(u'Convert: ') + task['taskMess']
else:
task['taskMessage'] = _(u'Unknown Task: ') + task['taskMess']
renderedtasklist.append(task)
return renderedtasklist