# -*- 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 . from __future__ import division, print_function, unicode_literals import sys import os import io import json import mimetypes import re import shutil import time import unicodedata from datetime import datetime, timedelta from tempfile import gettempdir import requests from babel.dates import format_datetime from babel.units import format_unit from flask import send_from_directory, make_response, redirect, abort from flask_babel import gettext as _ from flask_login import current_user from sqlalchemy.sql.expression import true, false, and_, or_, text, func from werkzeug.datastructures import Headers from werkzeug.security import generate_password_hash from . import calibre_db from .tasks.convert import TaskConvert try: from urllib.parse import quote except ImportError: from urllib import quote try: import unidecode use_unidecode = True except ImportError: use_unidecode = False try: from PIL import Image as PILImage from PIL import UnidentifiedImageError use_PIL = True except ImportError: use_PIL = False from . import logger, config, get_locale, db, ub, isoLanguages, worker from . import gdriveutils as gd from .constants import STATIC_DIR as _STATIC_DIR from .pagination import Pagination from .subproc_wrapper import process_wait from .worker import STAT_WAITING, STAT_FAIL, STAT_STARTED, STAT_FINISH_SUCCESS from .worker import TASK_EMAIL, TASK_CONVERT, TASK_UPLOAD, TASK_CONVERT_ANY from .services.worker import WorkerThread from . import tasks log = logger.create() # 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 = calibre_db.get_book(book_id) data = calibre_db.get_book_format(book.id, old_book_format) if not data: error_message = _(u"%(format)s format not found for book id: %(book)d", format=old_book_format, book=book_id) log.error("convert_book_format: %s", 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 = config.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 WorkerThread.add(user_id, TaskConvert(file_path, book.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): worker.add_email(_(u'Calibre-Web test e-mail'), None, None, config.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\r\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" worker.add_email(_(u'Get Started with Calibre-Web'), None, None, config.get_mail_settings(), e_mail, None, _(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 not config.config_converterpath: # no converter - only for mobi and pdf formats for ele in iter(entry.data): if ele.uncompressed_size < config.mail_size: 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')}) else: formats = list() for ele in iter(entry.data): if ele.uncompressed_size < config.mail_size: 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 'PDF' in formats: bookformats.append({'format': 'Pdf', 'convert': 0, 'text': _('Send %(format)s to Kindle', format='Pdf')}) if config.config_converterpath: 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 'AZW3' in formats and not 'MOBI' in formats: bookformats.append({'format': 'Mobi', 'convert': 2, 'text': _('Convert %(orig)s to %(format)s and send to Kindle', orig='Azw3', format='Mobi')}) return bookformats else: log.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', 'CBZ', 'CBT', 'CBR'} bookformats = list() if len(entry.data): for ele in iter(entry.data): if ele.format.upper() 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 = calibre_db.get_book(book_id) if convert == 1: # returns None if success, otherwise errormessage return convert_book_format(book_id, calibrepath, u'epub', book_format.lower(), user_id, kindle_mail) if convert == 2: # returns None if success, otherwise errormessage return convert_book_format(book_id, calibrepath, u'azw3', book_format.lower(), user_id, kindle_mail) for entry in iter(book.data): if entry.format.upper() == book_format.upper(): converted_file_name = entry.name + '.' + book_format.lower() worker.add_email(_(u"Send to Kindle"), book.path, converted_file_name, config.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(r'[\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") if sys.version_info.major == 3: return value else: return value.decode('utf-8') def get_sorted_author(value): try: if ',' not in value: regexes = [r"^(JR|SR)\.?$", r"^I{1,3}\.?$", r"^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 as ex: log.error("Sorting author %s failed: %s", value, ex) 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)) return True, None else: if os.path.isdir(path): try: for root, folders, files in os.walk(path): for f in files: os.unlink(os.path.join(root, f)) if len(folders): log.warning("Deleting book {} failed, path {} has subfolders: {}".format(book.id, book.path, folders)) return True, _("Deleting bookfolder for book %(id)s failed, path has subfolders: %(path)s", id=book.id, path=book.path) shutil.rmtree(path) except (IOError, OSError) as e: log.error("Deleting book %s failed: %s", book.id, e) return False, _("Deleting book %(id)s failed: %(message)s", id=book.id, message=e) authorpath = os.path.join(calibrepath, os.path.split(book.path)[0]) if not os.listdir(authorpath): try: shutil.rmtree(authorpath) except (IOError, OSError) as e: log.error("Deleting authorpath for book %s failed: %s", book.id, e) return True, None else: log.error("Deleting book %s failed, book path not valid: %s", book.id, book.path) return True, _("Deleting book %(id)s, book path not valid: %(path)s", id=book.id, path=book.path) def update_dir_structure_file(book_id, calibrepath, first_author): localbook = calibre_db.get_book(book_id) 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: new_title_path = os.path.join(os.path.dirname(path), new_titledir) try: if not os.path.exists(new_title_path): os.renames(os.path.normcase(path), os.path.normcase(new_title_path)) else: log.info("Copying title: %s into existing: %s", path, new_title_path) for dir_name, __, file_list in os.walk(path): for file in file_list: os.renames(os.path.normcase(os.path.join(dir_name, file)), os.path.normcase(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: log.error("Rename title from: %s to %s: %s", path, new_title_path, ex) log.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: new_author_path = os.path.join(calibrepath, new_authordir, os.path.basename(path)) try: os.renames(os.path.normcase(path), os.path.normcase(new_author_path)) localbook.path = new_authordir + '/' + localbook.path.split('/')[1] except OSError as ex: log.error("Rename author from: %s to %s: %s", path, new_author_path, ex) log.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: new_name = get_valid_filename(localbook.title) + ' - ' + get_valid_filename(new_authordir) path_name = os.path.join(calibrepath, new_authordir, os.path.basename(path)) for file_format in localbook.data: os.renames(os.path.normcase( os.path.join(path_name, file_format.name + '.' + file_format.format.lower())), os.path.normcase(os.path.join(path_name, new_name + '.' + file_format.format.lower()))) file_format.name = new_name except OSError as ex: log.error("Rename file in path %s to %s: %s", path, new_name, ex) log.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 = calibre_db.get_book(book_id) path = book.path 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) + u" (" + str(book_id) + u")" 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] + u'/' + new_titledir path = book.path 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), new_titledir) if gFile: gd.moveGdriveFolderRemote(gFile, new_authordir) book.path = new_authordir + u'/' + book.path.split('/')[1] path = book.path 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 if authordir != new_authordir or titledir != new_titledir: new_name = get_valid_filename(book.title) + u' - ' + get_valid_filename(new_authordir) for file_format in book.data: gFile = gd.getFileFromEbooksFolder(path, file_format.name + u'.' + file_format.format.lower()) if not gFile: error = _(u'File %(file)s not found on Google Drive', file=file_format.name) # file not found break gd.moveGdriveFileRemote(gFile, new_name + u'.' + file_format.format.lower()) file_format.name = new_name return error def delete_book_gdrive(book, book_format): error = None 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 is None, error def reset_password(user_id): existing_user = ub.session.query(ub.User).filter(ub.User.id == user_id).first() if not existing_user: return 0, None if not config.get_mail_server_configured(): return 2, None try: password = generate_random_password() existing_user.password = generate_password_hash(password) ub.session.commit() send_registration_mail(existing_user.email, existing_user.nickname, password, True) return 1, existing_user.nickname except Exception: ub.session.rollback() return 0, None def generate_random_password(): s = "abcdefghijklmnopqrstuvwxyz01234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ!@#$%&*()?" passlen = 8 if sys.version_info < (3, 0): return "".join(s[ord(c) % len(s)] for c in os.urandom(passlen)) else: return "".join(s[c % len(s)] for c in os.urandom(passlen)) def uniq(input): output = [] for x in input: if x not in output: output.append(x) return output ################################## 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_cover_on_failure(use_generic_cover): if use_generic_cover: return send_from_directory(_STATIC_DIR, "generic_cover.jpg") else: return None def get_book_cover(book_id): book = calibre_db.get_filtered_book(book_id, allow_show_archived=True) return get_book_cover_internal(book, use_generic_cover_on_failure=True) def get_book_cover_with_uuid(book_uuid, use_generic_cover_on_failure=True): book = calibre_db.get_book_by_uuid(book_uuid) return get_book_cover_internal(book, use_generic_cover_on_failure) def get_book_cover_internal(book, use_generic_cover_on_failure): if book and book.has_cover: if config.config_use_google_drive: try: if not gd.is_gdrive_ready(): return get_cover_on_failure(use_generic_cover_on_failure) path = gd.get_cover_via_gdrive(book.path) if path: return redirect(path) else: log.error('%s/cover.jpg not found on Google Drive', book.path) return get_cover_on_failure(use_generic_cover_on_failure) except Exception as e: log.exception(e) # traceback.print_exc() return get_cover_on_failure(use_generic_cover_on_failure) else: cover_file_path = os.path.join(config.config_calibre_dir, book.path) if os.path.isfile(os.path.join(cover_file_path, "cover.jpg")): return send_from_directory(cover_file_path, "cover.jpg") else: return get_cover_on_failure(use_generic_cover_on_failure) else: return get_cover_on_failure(use_generic_cover_on_failure) # saves book cover from url def save_cover_from_url(url, book_path): try: img = requests.get(url, timeout=(10, 200)) # ToDo: Error Handling img.raise_for_status() return save_cover(img, book_path) except (requests.exceptions.HTTPError, requests.exceptions.ConnectionError, requests.exceptions.Timeout) as ex: log.info(u'Cover Download Error %s', ex) return False, _("Error Downloading Cover") except UnidentifiedImageError as ex: log.info(u'File Format Error %s', ex) return False, _("Cover Format Error") def save_cover_from_filestorage(filepath, saved_filename, img): if hasattr(img, '_content'): f = open(os.path.join(filepath, saved_filename), "wb") f.write(img._content) f.close() else: # check if file path exists, otherwise create it, copy file to calibre path and delete temp file if not os.path.exists(filepath): try: os.makedirs(filepath) except OSError: log.error(u"Failed to create path for cover") return False, _(u"Failed to create path for cover") try: img.save(os.path.join(filepath, saved_filename)) except (IOError, OSError): log.error(u"Cover-file is not a valid image file, or could not be stored") return False, _(u"Cover-file is not a valid image file, or could not be stored") return True, None # saves book cover to gdrive or locally def save_cover(img, book_path): content_type = img.headers.get('content-type') if use_PIL: if content_type not in ('image/jpeg', 'image/png', 'image/webp'): log.error("Only jpg/jpeg/png/webp files are supported as coverfile") return False, _("Only jpg/jpeg/png/webp files are supported as coverfile") # convert to jpg because calibre only supports jpg if content_type in ('image/png', 'image/webp'): if hasattr(img, 'stream'): imgc = PILImage.open(img.stream) else: imgc = PILImage.open(io.BytesIO(img.content)) im = imgc.convert('RGB') tmp_bytesio = io.BytesIO() im.save(tmp_bytesio, format='JPEG') img._content = tmp_bytesio.getvalue() else: if content_type not in 'image/jpeg': log.error("Only jpg/jpeg files are supported as coverfile") return False, _("Only jpg/jpeg files are supported as coverfile") if config.config_use_google_drive: tmpDir = gettempdir() ret, message = save_cover_from_filestorage(tmpDir, "uploaded_cover.jpg", img) if ret is True: gd.uploadFileToEbooksFolder(os.path.join(book_path, 'cover.jpg'), os.path.join(tmpDir, "uploaded_cover.jpg")) log.info("Cover is saved on Google Drive") return True, None else: return False, message else: return save_cover_from_filestorage(os.path.join(config.config_calibre_dir, book_path), "cover.jpg", img) def do_download_file(book, book_format, client, data, headers): if config.config_use_google_drive: startTime = time.time() df = gd.getFileFromEbooksFolder(book.path, data.name + "." + book_format) log.debug('%s', 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 log.error('File not found: %s', os.path.join(filename, data.name + "." + book_format)) if client == "kobo" and book_format == "kepub": headers["Content-Disposition"] = headers["Content-Disposition"].replace(".kepub", ".kepub.epub") response = make_response(send_from_directory(filename, data.name + "." + book_format)) # ToDo Check headers parameter for element in headers: response.headers[element[0]] = element[1] return response ################################## def check_unrar(unrarLocation): if not unrarLocation: return if not os.path.exists(unrarLocation): return _('Unrar binary file not found') try: if sys.version_info < (3, 0): unrarLocation = unrarLocation.encode(sys.getfilesystemencoding()) unrarLocation = [unrarLocation] for lines in process_wait(unrarLocation): value = re.search('UNRAR (.*) freeware', lines, re.IGNORECASE) if value: version = value.group(1) log.debug("unrar version %s", version) break except (OSError, UnicodeDecodeError) as err: log.exception(err) return _('Error excecuting UnRar') def json_serial(obj): """JSON serializer for objects not serializable by default json code""" if isinstance(obj, datetime): return obj.isoformat() if isinstance(obj, timedelta): return { '__type__': 'timedelta', 'days': obj.days, 'seconds': obj.seconds, 'microseconds': obj.microseconds, } # return obj.isoformat() raise TypeError("Type %s not serializable" % type(obj)) # helper function for displaying the runtime of tasks def format_runtime(runtime): retVal = "" if runtime.days: retVal = format_unit(runtime.days, 'duration-day', length="long", locale=get_locale()) + ', ' mins, seconds = divmod(runtime.seconds, 60) hours, minutes = divmod(mins, 60) # ToDo: locale.number_symbols._data['timeSeparator'] -> localize time separator ? if hours: retVal += '{:d}:{:02d}:{:02d}s'.format(hours, minutes, seconds) elif minutes: retVal += '{:2d}:{:02d}s'.format(minutes, seconds) else: retVal += '{:2d}s'.format(seconds) return retVal # helper function to apply localize status information in tasklist entries def render_task_status(tasklist): renderedtasklist = list() for user, task in tasklist: if user == current_user.nickname or current_user.role_admin(): ret = {} if task.start_time: ret['starttime'] = format_datetime(task.start_time, format='short', locale=get_locale()) ret['runtime'] = format_runtime(task.runtime) # localize the task status if isinstance(task.stat, int): if task.stat == STAT_WAITING: ret['status'] = _(u'Waiting') elif task.stat == STAT_FAIL: ret['status'] = _(u'Failed') elif task.stat == STAT_STARTED: ret['status'] = _(u'Started') elif task.stat == STAT_FINISH_SUCCESS: ret['status'] = _(u'Finished') else: ret['status'] = _(u'Unknown Status') ret['taskMessage'] = "{}: {}".format(_(task.name), task.message) ret['progress'] = "{} %".format(int(task.progress * 100)) ret['user'] = user renderedtasklist.append(ret) return renderedtasklist def tags_filters(): negtags_list = current_user.list_denied_tags() postags_list = current_user.list_allowed_tags() neg_content_tags_filter = false() if negtags_list == [''] else db.Tags.name.in_(negtags_list) pos_content_tags_filter = true() if postags_list == [''] else db.Tags.name.in_(postags_list) return and_(pos_content_tags_filter, ~neg_content_tags_filter) # checks if domain is in database (including wildcards) # example SELECT * FROM @TABLE WHERE 'abcdefg' LIKE Name; # from https://code.luasoftware.com/tutorials/flask/execute-raw-sql-in-flask-sqlalchemy/ def check_valid_domain(domain_text): # domain_text = domain_text.split('@', 1)[-1].lower() sql = "SELECT * FROM registration WHERE (:domain LIKE domain and allow = 1);" result = ub.session.query(ub.Registration).from_statement(text(sql)).params(domain=domain_text).all() if not len(result): return False sql = "SELECT * FROM registration WHERE (:domain LIKE domain and allow = 0);" result = ub.session.query(ub.Registration).from_statement(text(sql)).params(domain=domain_text).all() return not len(result) def get_cc_columns(filter_config_custom_read=False): tmpcc = calibre_db.session.query(db.Custom_Columns)\ .filter(db.Custom_Columns.datatype.notin_(db.cc_exceptions)).all() cc = [] r = None if config.config_columns_to_ignore: r = re.compile(config.config_columns_to_ignore) for col in tmpcc: if filter_config_custom_read and config.config_read_column and config.config_read_column == col.id: continue if r and r.match(col.name): continue cc.append(col) return cc def get_download_link(book_id, book_format, client): book_format = book_format.split(".")[0] book = calibre_db.get_filtered_book(book_id) if book: data1 = calibre_db.get_book_format(book.id, book_format.upper()) else: abort(404) if data1: # collect downloaded books only for registered user and not for anonymous user if current_user.is_authenticated: ub.update_download(book_id, int(current_user.id)) file_name = book.title if len(book.authors) > 0: file_name = book.authors[0].name + '_' + file_name file_name = get_valid_filename(file_name) headers = Headers() headers["Content-Type"] = mimetypes.types_map.get('.' + book_format, "application/octet-stream") headers["Content-Disposition"] = "attachment; filename=%s.%s; filename*=UTF-8''%s.%s" % ( quote(file_name.encode('utf-8')), book_format, quote(file_name.encode('utf-8')), book_format) return do_download_file(book, book_format, client, data1, headers) else: abort(404)