calibre-web/cps/opds.py

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# -*- coding: utf-8 -*-
# This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
# Copyright (C) 2018-2019 OzzieIsaacs, cervinko, jkrehm, bodybybuddha, ok11,
# andy29485, idalin, Kyosfonica, wuqi, Kennyl, lemmsh,
# falgh1, grunjol, csitko, ytils, xybydy, trasba, vrabe,
# ruben-herold, marblepebble, JackED42, SiphonSquirrel,
# apetresc, nanu-c, mutschler
#
# 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 __future__ import division, print_function, unicode_literals
import sys
import datetime
from functools import wraps
from flask import Blueprint, request, render_template, Response, g, make_response, abort
from flask_login import current_user
from sqlalchemy.sql.expression import func, text, or_, and_
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from werkzeug.security import check_password_hash
from . import constants, logger, config, db, calibre_db, ub, services, get_locale, isoLanguages
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from .helper import get_download_link, get_book_cover
from .pagination import Pagination
from .web import render_read_books
from .usermanagement import load_user_from_request
from flask_babel import gettext as _
from babel import Locale as LC
from babel.core import UnknownLocaleError
opds = Blueprint('opds', __name__)
log = logger.create()
def requires_basic_auth_if_no_ano(f):
@wraps(f)
def decorated(*args, **kwargs):
auth = request.authorization
if config.config_anonbrowse != 1:
if not auth or auth.type != 'basic' or not check_auth(auth.username, auth.password):
return authenticate()
return f(*args, **kwargs)
if config.config_login_type == constants.LOGIN_LDAP and services.ldap and config.config_anonbrowse != 1:
return services.ldap.basic_auth_required(f)
return decorated
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class FeedObject:
def __init__(self, rating_id, rating_name):
self.rating_id = rating_id
self.rating_name = rating_name
@property
def id(self):
return self.rating_id
@property
def name(self):
return self.rating_name
@opds.route("/opds/")
@opds.route("/opds")
@requires_basic_auth_if_no_ano
def feed_index():
return render_xml_template('index.xml')
@opds.route("/opds/osd")
@requires_basic_auth_if_no_ano
def feed_osd():
return render_xml_template('osd.xml', lang='en-EN')
@opds.route("/opds/search", defaults={'query': ""})
@opds.route("/opds/search/<query>")
@requires_basic_auth_if_no_ano
def feed_cc_search(query):
return feed_search(query.strip())
@opds.route("/opds/search", methods=["GET"])
@requires_basic_auth_if_no_ano
def feed_normal_search():
return feed_search(request.args.get("query").strip())
@opds.route("/opds/new")
@requires_basic_auth_if_no_ano
def feed_new():
off = request.args.get("offset") or 0
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entries, __, pagination = calibre_db.fill_indexpage((int(off) / (int(config.config_books_per_page)) + 1), 0,
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db.Books, True, [db.Books.timestamp.desc()])
return render_xml_template('feed.xml', entries=entries, pagination=pagination)
@opds.route("/opds/discover")
@requires_basic_auth_if_no_ano
def feed_discover():
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entries = calibre_db.session.query(db.Books).filter(calibre_db.common_filters()).order_by(func.random())\
.limit(config.config_books_per_page)
pagination = Pagination(1, config.config_books_per_page, int(config.config_books_per_page))
return render_xml_template('feed.xml', entries=entries, pagination=pagination)
@opds.route("/opds/rated")
@requires_basic_auth_if_no_ano
def feed_best_rated():
off = request.args.get("offset") or 0
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entries, __, pagination = calibre_db.fill_indexpage((int(off) / (int(config.config_books_per_page)) + 1), 0,
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db.Books, db.Books.ratings.any(db.Ratings.rating > 9),
[db.Books.timestamp.desc()])
return render_xml_template('feed.xml', entries=entries, pagination=pagination)
@opds.route("/opds/hot")
@requires_basic_auth_if_no_ano
def feed_hot():
off = request.args.get("offset") or 0
all_books = ub.session.query(ub.Downloads, func.count(ub.Downloads.book_id)).order_by(
func.count(ub.Downloads.book_id).desc()).group_by(ub.Downloads.book_id)
hot_books = all_books.offset(off).limit(config.config_books_per_page)
entries = list()
for book in hot_books:
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downloadBook = calibre_db.get_book(book.Downloads.book_id)
if downloadBook:
entries.append(
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calibre_db.get_filtered_book(book.Downloads.book_id)
)
else:
ub.delete_download(book.Downloads.book_id)
numBooks = entries.__len__()
pagination = Pagination((int(off) / (int(config.config_books_per_page)) + 1),
config.config_books_per_page, numBooks)
return render_xml_template('feed.xml', entries=entries, pagination=pagination)
@opds.route("/opds/author")
@requires_basic_auth_if_no_ano
def feed_authorindex():
off = request.args.get("offset") or 0
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entries = calibre_db.session.query(db.Authors).join(db.books_authors_link).join(db.Books)\
.filter(calibre_db.common_filters())\
.group_by(text('books_authors_link.author'))\
.order_by(db.Authors.sort).limit(config.config_books_per_page)\
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.offset(off)
pagination = Pagination((int(off) / (int(config.config_books_per_page)) + 1), config.config_books_per_page,
len(calibre_db.session.query(db.Authors).all()))
return render_xml_template('feed.xml', listelements=entries, folder='opds.feed_author', pagination=pagination)
@opds.route("/opds/author/<int:book_id>")
@requires_basic_auth_if_no_ano
def feed_author(book_id):
off = request.args.get("offset") or 0
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entries, __, pagination = calibre_db.fill_indexpage((int(off) / (int(config.config_books_per_page)) + 1), 0,
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db.Books,
db.Books.authors.any(db.Authors.id == book_id),
[db.Books.timestamp.desc()])
return render_xml_template('feed.xml', entries=entries, pagination=pagination)
@opds.route("/opds/publisher")
@requires_basic_auth_if_no_ano
def feed_publisherindex():
off = request.args.get("offset") or 0
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entries = calibre_db.session.query(db.Publishers)\
.join(db.books_publishers_link)\
.join(db.Books).filter(calibre_db.common_filters())\
.group_by(text('books_publishers_link.publisher'))\
.order_by(db.Publishers.sort)\
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.limit(config.config_books_per_page).offset(off)
pagination = Pagination((int(off) / (int(config.config_books_per_page)) + 1), config.config_books_per_page,
len(calibre_db.session.query(db.Publishers).all()))
return render_xml_template('feed.xml', listelements=entries, folder='opds.feed_publisher', pagination=pagination)
@opds.route("/opds/publisher/<int:book_id>")
@requires_basic_auth_if_no_ano
def feed_publisher(book_id):
off = request.args.get("offset") or 0
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entries, __, pagination = calibre_db.fill_indexpage((int(off) / (int(config.config_books_per_page)) + 1), 0,
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db.Books,
db.Books.publishers.any(db.Publishers.id == book_id),
[db.Books.timestamp.desc()])
return render_xml_template('feed.xml', entries=entries, pagination=pagination)
@opds.route("/opds/category")
@requires_basic_auth_if_no_ano
def feed_categoryindex():
off = request.args.get("offset") or 0
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entries = calibre_db.session.query(db.Tags)\
.join(db.books_tags_link)\
.join(db.Books)\
.filter(calibre_db.common_filters())\
.group_by(text('books_tags_link.tag'))\
.order_by(db.Tags.name)\
.offset(off)\
.limit(config.config_books_per_page)
pagination = Pagination((int(off) / (int(config.config_books_per_page)) + 1), config.config_books_per_page,
len(calibre_db.session.query(db.Tags).all()))
return render_xml_template('feed.xml', listelements=entries, folder='opds.feed_category', pagination=pagination)
@opds.route("/opds/category/<int:book_id>")
@requires_basic_auth_if_no_ano
def feed_category(book_id):
off = request.args.get("offset") or 0
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entries, __, pagination = calibre_db.fill_indexpage((int(off) / (int(config.config_books_per_page)) + 1), 0,
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db.Books,
db.Books.tags.any(db.Tags.id == book_id),
[db.Books.timestamp.desc()])
return render_xml_template('feed.xml', entries=entries, pagination=pagination)
@opds.route("/opds/series")
@requires_basic_auth_if_no_ano
def feed_seriesindex():
off = request.args.get("offset") or 0
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entries = calibre_db.session.query(db.Series)\
.join(db.books_series_link)\
.join(db.Books)\
.filter(calibre_db.common_filters())\
.group_by(text('books_series_link.series'))\
.order_by(db.Series.sort)\
.offset(off).all()
pagination = Pagination((int(off) / (int(config.config_books_per_page)) + 1), config.config_books_per_page,
len(calibre_db.session.query(db.Series).all()))
return render_xml_template('feed.xml', listelements=entries, folder='opds.feed_series', pagination=pagination)
@opds.route("/opds/series/<int:book_id>")
@requires_basic_auth_if_no_ano
def feed_series(book_id):
off = request.args.get("offset") or 0
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entries, __, pagination = calibre_db.fill_indexpage((int(off) / (int(config.config_books_per_page)) + 1), 0,
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db.Books,
db.Books.series.any(db.Series.id == book_id),
[db.Books.series_index])
return render_xml_template('feed.xml', entries=entries, pagination=pagination)
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@opds.route("/opds/ratings")
@requires_basic_auth_if_no_ano
def feed_ratingindex():
off = request.args.get("offset") or 0
entries = calibre_db.session.query(db.Ratings, func.count('books_ratings_link.book').label('count'),
(db.Ratings.rating / 2).label('name')) \
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.join(db.books_ratings_link)\
.join(db.Books)\
.filter(calibre_db.common_filters()) \
.group_by(text('books_ratings_link.rating'))\
.order_by(db.Ratings.rating).all()
pagination = Pagination((int(off) / (int(config.config_books_per_page)) + 1), config.config_books_per_page,
len(entries))
element = list()
for entry in entries:
element.append(FeedObject(entry[0].id, "{} Stars".format(entry.name)))
return render_xml_template('feed.xml', listelements=element, folder='opds.feed_ratings', pagination=pagination)
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@opds.route("/opds/ratings/<book_id>")
@requires_basic_auth_if_no_ano
def feed_ratings(book_id):
off = request.args.get("offset") or 0
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entries, __, pagination = calibre_db.fill_indexpage((int(off) / (int(config.config_books_per_page)) + 1), 0,
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db.Books,
db.Books.ratings.any(db.Ratings.id == book_id),
[db.Books.timestamp.desc()])
return render_xml_template('feed.xml', entries=entries, pagination=pagination)
@opds.route("/opds/formats")
@requires_basic_auth_if_no_ano
def feed_formatindex():
off = request.args.get("offset") or 0
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entries = calibre_db.session.query(db.Data).join(db.Books)\
.filter(calibre_db.common_filters()) \
.group_by(db.Data.format)\
.order_by(db.Data.format).all()
pagination = Pagination((int(off) / (int(config.config_books_per_page)) + 1), config.config_books_per_page,
len(entries))
element = list()
for entry in entries:
element.append(FeedObject(entry.format, entry.format))
return render_xml_template('feed.xml', listelements=element, folder='opds.feed_format', pagination=pagination)
@opds.route("/opds/formats/<book_id>")
@requires_basic_auth_if_no_ano
def feed_format(book_id):
off = request.args.get("offset") or 0
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entries, __, pagination = calibre_db.fill_indexpage((int(off) / (int(config.config_books_per_page)) + 1), 0,
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db.Books,
db.Books.data.any(db.Data.format == book_id.upper()),
[db.Books.timestamp.desc()])
return render_xml_template('feed.xml', entries=entries, pagination=pagination)
@opds.route("/opds/language")
@opds.route("/opds/language/")
@requires_basic_auth_if_no_ano
def feed_languagesindex():
off = request.args.get("offset") or 0
if current_user.filter_language() == u"all":
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languages = calibre_db.speaking_language()
else:
try:
cur_l = LC.parse(current_user.filter_language())
except UnknownLocaleError:
cur_l = None
languages = calibre_db.session.query(db.Languages).filter(
db.Languages.lang_code == current_user.filter_language()).all()
if cur_l:
languages[0].name = cur_l.get_language_name(get_locale())
else:
languages[0].name = _(isoLanguages.get(part3=languages[0].lang_code).name)
pagination = Pagination((int(off) / (int(config.config_books_per_page)) + 1), config.config_books_per_page,
len(languages))
return render_xml_template('feed.xml', listelements=languages, folder='opds.feed_languages', pagination=pagination)
@opds.route("/opds/language/<int:book_id>")
@requires_basic_auth_if_no_ano
def feed_languages(book_id):
off = request.args.get("offset") or 0
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entries, __, pagination = calibre_db.fill_indexpage((int(off) / (int(config.config_books_per_page)) + 1), 0,
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db.Books,
db.Books.languages.any(db.Languages.id == book_id),
[db.Books.timestamp.desc()])
return render_xml_template('feed.xml', entries=entries, pagination=pagination)
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@opds.route("/opds/shelfindex")
@requires_basic_auth_if_no_ano
def feed_shelfindex():
off = request.args.get("offset") or 0
shelf = g.shelves_access
number = len(shelf)
pagination = Pagination((int(off) / (int(config.config_books_per_page)) + 1), config.config_books_per_page,
number)
return render_xml_template('feed.xml', listelements=shelf, folder='opds.feed_shelf', pagination=pagination)
@opds.route("/opds/shelf/<int:book_id>")
@requires_basic_auth_if_no_ano
def feed_shelf(book_id):
off = request.args.get("offset") or 0
if current_user.is_anonymous:
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shelf = ub.session.query(ub.Shelf).filter(ub.Shelf.is_public == 1,
ub.Shelf.id == book_id).first()
else:
shelf = ub.session.query(ub.Shelf).filter(or_(and_(ub.Shelf.user_id == int(current_user.id),
ub.Shelf.id == book_id),
and_(ub.Shelf.is_public == 1,
ub.Shelf.id == book_id))).first()
result = list()
# user is allowed to access shelf
if shelf:
books_in_shelf = ub.session.query(ub.BookShelf).filter(ub.BookShelf.shelf == book_id).order_by(
ub.BookShelf.order.asc()).all()
for book in books_in_shelf:
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cur_book = calibre_db.get_book(book.book_id)
result.append(cur_book)
pagination = Pagination((int(off) / (int(config.config_books_per_page)) + 1), config.config_books_per_page,
len(result))
return render_xml_template('feed.xml', entries=result, pagination=pagination)
@opds.route("/opds/download/<book_id>/<book_format>/")
@requires_basic_auth_if_no_ano
def opds_download_link(book_id, book_format):
# I gave up with this: With enabled ldap login, the user doesn't get logged in, therefore it's always guest
# workaround, loading the user from the request and checking it's download rights here
# in case of anonymous browsing user is None
user = load_user_from_request(request) or current_user
if not user.role_download():
return abort(403)
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if "Kobo" in request.headers.get('User-Agent'):
client = "kobo"
else:
client = ""
return get_download_link(book_id, book_format.lower(), client)
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@opds.route("/ajax/book/<string:uuid>/<library>")
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@opds.route("/ajax/book/<string:uuid>", defaults={'library': ""})
@requires_basic_auth_if_no_ano
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def get_metadata_calibre_companion(uuid, library):
entry = calibre_db.session.query(db.Books).filter(db.Books.uuid.like("%" + uuid + "%")).first()
if entry is not None:
js = render_template('json.txt', entry=entry)
response = make_response(js)
response.headers["Content-Type"] = "application/json; charset=utf-8"
return response
else:
return ""
def feed_search(term):
if term:
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entries, __, ___ = calibre_db.get_search_results(term)
entriescount = len(entries) if len(entries) > 0 else 1
pagination = Pagination(1, entriescount, entriescount)
return render_xml_template('feed.xml', searchterm=term, entries=entries, pagination=pagination)
else:
return render_xml_template('feed.xml', searchterm="")
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def check_auth(username, password):
if sys.version_info.major == 3:
try:
username = username.encode('windows-1252')
except UnicodeEncodeError:
username = username.encode('utf-8')
user = ub.session.query(ub.User).filter(func.lower(ub.User.nickname) ==
username.decode('utf-8').lower()).first()
if bool(user and check_password_hash(str(user.password), password)):
return True
else:
ipAdress = request.headers.get('X-Forwarded-For', request.remote_addr)
log.warning('OPDS Login failed for user "%s" IP-address: %s', username.decode('utf-8'), ipAdress)
return False
def authenticate():
return Response(
'Could not verify your access level for that URL.\n'
'You have to login with proper credentials', 401,
{'WWW-Authenticate': 'Basic realm="Login Required"'})
def render_xml_template(*args, **kwargs):
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# ToDo: return time in current timezone similar to %z
currtime = datetime.datetime.now().strftime("%Y-%m-%dT%H:%M:%S+00:00")
xml = render_template(current_time=currtime, instance=config.config_calibre_web_title, *args, **kwargs)
response = make_response(xml)
response.headers["Content-Type"] = "application/atom+xml; charset=utf-8"
return response
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@opds.route("/opds/thumb_240_240/<book_id>")
@opds.route("/opds/cover_240_240/<book_id>")
@opds.route("/opds/cover_90_90/<book_id>")
@opds.route("/opds/cover/<book_id>")
@requires_basic_auth_if_no_ano
def feed_get_cover(book_id):
return get_book_cover(book_id)
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@opds.route("/opds/readbooks")
@requires_basic_auth_if_no_ano
def feed_read_books():
off = request.args.get("offset") or 0
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result, pagination = render_read_books(int(off) / (int(config.config_books_per_page)) + 1, True, True)
return render_xml_template('feed.xml', entries=result, pagination=pagination)
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@opds.route("/opds/unreadbooks")
@requires_basic_auth_if_no_ano
def feed_unread_books():
off = request.args.get("offset") or 0
result, pagination = render_read_books(int(off) / (int(config.config_books_per_page)) + 1, False, True)
return render_xml_template('feed.xml', entries=result, pagination=pagination)