Merge remote-tracking branch 'pwr/config_sql' into Develop

.gitignore

@@ -14,6 +14,7 @@ build/
 *.egg-info/
 .installed.cfg
 *.egg
+.pylint.d
 
 # calibre-web
 *.db

cps/__init__.py

@@ -34,8 +34,9 @@ from flask_login import LoginManager
 from flask_babel import Babel
 from flask_principal import Principal
 
-from . import logger, cache_buster, cli, config_sql, ub
+from . import logger, cache_buster, cli, config_sql, ub, db, services
 from .reverseproxy import ReverseProxied
+from .server import WebServer
 
 
 mimetypes.init()
@@ -64,15 +65,10 @@ lm.anonymous_user = ub.Anonymous
 
 
 ub.init_db(cli.settingspath)
+# pylint: disable=no-member
 config = config_sql.load_configuration(ub.session)
-from . import db, services
 
 searched_ids = {}
-
-from .worker import WorkerThread
-global_WorkerThread = WorkerThread()
-
-from .server import WebServer
 web_server = WebServer()
 
 babel = Babel()
@@ -108,7 +104,6 @@ def create_app():
     if services.goodreads:
         services.goodreads.connect(config.config_goodreads_api_key, config.config_goodreads_api_secret, config.config_use_goodreads)
 
-    global_WorkerThread.start()
     return app
 
 @babel.localeselector

cps/about.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 #  This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
@@ -23,56 +22,46 @@
 
 from __future__ import division, print_function, unicode_literals
 import sys
-import requests
+import sqlite3
+from collections import OrderedDict
 
-from flask import Blueprint
-from flask import __version__ as flaskVersion
+import babel, pytz, requests, sqlalchemy
+import werkzeug, flask, flask_login, flask_principal, jinja2
 from flask_babel import gettext as _
-from flask_principal import __version__ as flask_principalVersion
-from flask_login import login_required
-try:
-    from flask_login import __version__ as flask_loginVersion
-except ImportError:
-    from flask_login.__about__ import __version__ as flask_loginVersion
-from werkzeug import __version__ as werkzeugVersion
 
-from babel import __version__ as babelVersion
-from jinja2 import __version__  as jinja2Version
-from pytz import __version__ as pytzVersion
-from sqlalchemy import __version__ as sqlalchemyVersion
-
-from . import db, converter, uploader
-from .isoLanguages import __version__ as iso639Version
-from .server import VERSION as serverVersion
+from . import db, converter, uploader, server, isoLanguages
 from .web import render_title_template
 
 
-about = Blueprint('about', __name__)
+about = flask.Blueprint('about', __name__)
+
+
+_VERSIONS = OrderedDict(
+    Python=sys.version,
+    WebServer=server.VERSION,
+    Flask=flask.__version__,
+    Flask_Login=flask_login.__version__,
+    Flask_Principal=flask_principal.__version__,
+    Werkzeug=werkzeug.__version__,
+    Babel=babel.__version__,
+    Jinja2=jinja2.__version__,
+    Requests=requests.__version__,
+    SqlAlchemy=sqlalchemy.__version__,
+    pySqlite=sqlite3.version,
+    SQLite=sqlite3.sqlite_version,
+    iso639=isoLanguages.__version__,
+    pytz=pytz.__version__,
+)
+_VERSIONS.update(uploader.get_versions())
 
 
 @about.route("/stats")
-@login_required
+@flask_login.login_required
 def stats():
     counter = db.session.query(db.Books).count()
     authors = db.session.query(db.Authors).count()
     categorys = db.session.query(db.Tags).count()
     series = db.session.query(db.Series).count()
-    versions = uploader.get_versions()
-    versions['Babel'] = 'v' + babelVersion
-    versions['Sqlalchemy'] = 'v' + sqlalchemyVersion
-    versions['Werkzeug'] = 'v' + werkzeugVersion
-    versions['Jinja2'] = 'v' + jinja2Version
-    versions['Flask'] = 'v' + flaskVersion
-    versions['Flask Login'] = 'v' + flask_loginVersion
-    versions['Flask Principal'] = 'v' + flask_principalVersion
-    versions['Iso 639'] = 'v' + iso639Version
-    versions['pytz'] = 'v' + pytzVersion
-
-    versions['Requests'] = 'v' + requests.__version__
-    versions['pySqlite'] = 'v' + db.session.bind.dialect.dbapi.version
-    versions['Sqlite'] = 'v' + db.session.bind.dialect.dbapi.sqlite_version
-    versions.update(converter.versioncheck())
-    versions.update(serverVersion)
-    versions['Python'] = sys.version
-    return render_title_template('stats.html', bookcounter=counter, authorcounter=authors, versions=versions,
+    _VERSIONS['ebook converter'] = _(converter.get_version())
+    return render_title_template('stats.html', bookcounter=counter, authorcounter=authors, versions=_VERSIONS,
                                  categorycounter=categorys, seriecounter=series, title=_(u"Statistics"), page="stat")

cps/admin.py

@@ -27,10 +27,6 @@ import base64
 import json
 import time
 from datetime import datetime, timedelta
-# try:
-#     from imp import reload
-# except ImportError:
-#     pass
 
 from babel import Locale as LC
 from babel.dates import format_datetime

cps/cli.py

@@ -1,7 +1,5 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
-
 #   This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
 #     Copyright (C) 2018 OzzieIsaacs
 #
@@ -22,50 +20,17 @@ from __future__ import division, print_function, unicode_literals
 import sys
 import os
 import argparse
+import socket
 
 from .constants import CONFIG_DIR as _CONFIG_DIR
 from .constants import STABLE_VERSION as _STABLE_VERSION
 from .constants import NIGHTLY_VERSION as _NIGHTLY_VERSION
 
-VALID_CHARACTERS = 'ABCDEFabcdef:0123456789'
-
-ipv6 = False
-
 
 def version_info():
     if _NIGHTLY_VERSION[1].startswith('$Format'):
         return "Calibre-Web version: %s - unkown git-clone" % _STABLE_VERSION['version']
-    else:
-        return "Calibre-Web version: %s -%s" % (_STABLE_VERSION['version'],_NIGHTLY_VERSION[1])
-
-
-def validate_ip4(address):
-    address_list = address.split('.')
-    if len(address_list) != 4:
-        return False
-    for val in address_list:
-        if not val.isdigit():
-            return False
-        i = int(val)
-        if i < 0 or i > 255:
-            return False
-    return True
-
-
-def validate_ip6(address):
-    address_list = address.split(':')
-    return (
-        len(address_list) == 8
-        and all(len(current) <= 4 for current in address_list)
-        and all(current in VALID_CHARACTERS for current in address)
-    )
-
-
-def validate_ip(address):
-    if validate_ip4(address) or ipv6:
-        return address
-    print("IP address is invalid. Exiting")
-    sys.exit(1)
+    return "Calibre-Web version: %s -%s" % (_STABLE_VERSION['version'], _NIGHTLY_VERSION[1])
 
 
 parser = argparse.ArgumentParser(description='Calibre Web is a web app'
@@ -108,7 +73,7 @@ if args.c:
         print("Certfilepath is invalid. Exiting...")
         sys.exit(1)
 
-if args.c is "":
+if args.c == "":
     certfilepath = ""
 
 if args.k:
@@ -122,15 +87,26 @@ if (args.k and not args.c) or (not args.k and args.c):
     print("Certfile and Keyfile have to be used together. Exiting...")
     sys.exit(1)
 
-if args.k is "":
+if args.k == "":
     keyfilepath = ""
 
 # handle and check ipadress argument
-if args.i:
-    ipv6 = validate_ip6(args.i)
-    ipadress = validate_ip(args.i)
-else:
-    ipadress = None
+ipadress = args.i or None
+if ipadress:
+    try:
+        # try to parse the given ip address with socket
+        if hasattr(socket, 'inet_pton'):
+            if ':' in ipadress:
+                socket.inet_pton(socket.AF_INET6, ipadress)
+            else:
+                socket.inet_pton(socket.AF_INET, ipadress)
+        else:
+            # on windows python < 3.4, inet_pton is not available
+            # inet_atom only handles IPv4 addresses
+            socket.inet_aton(ipadress)
+    except socket.error as err:
+        print(ipadress, ':', err)
+        sys.exit(1)
 
 # handle and check user password argument
 user_password = args.s or None

cps/config_sql.py

@@ -52,7 +52,7 @@ class _Settings(_Base):
     config_random_books = Column(Integer, default=4)
     config_authors_max = Column(Integer, default=0)
     config_read_column = Column(Integer, default=0)
-    config_title_regex = Column(String, default=u'^(A|The|An|Der|Die|Das|Den|Ein|Eine|Einen|Dem|Des|Einem|Eines)\s+')
+    config_title_regex = Column(String, default=r'^(A|The|An|Der|Die|Das|Den|Ein|Eine|Einen|Dem|Des|Einem|Eines)\s+')
     config_log_level = Column(SmallInteger, default=logger.DEFAULT_LOG_LEVEL)
     config_access_log = Column(SmallInteger, default=0)
     config_uploading = Column(SmallInteger, default=0)
@@ -106,7 +106,6 @@ class _Settings(_Base):
 
 # Class holds all application specific settings in calibre-web
 class _ConfigSQL(object):
-    # pylint: disable=no-member
     def __init__(self, session):
         self._session = session
         self._settings = None
@@ -137,9 +136,6 @@ class _ConfigSQL(object):
     def get_config_ipaddress(self):
         return cli.ipadress or ""
 
-    def get_ipaddress_type(self):
-        return cli.ipv6
-
     def _has_role(self, role_flag):
         return constants.has_flag(self.config_default_role, role_flag)
 
@@ -226,8 +222,14 @@ class _ConfigSQL(object):
 
         if self.config_google_drive_watch_changes_response:
             self.config_google_drive_watch_changes_response = json.loads(self.config_google_drive_watch_changes_response)
-        self.db_configured = (self.config_calibre_dir and
-                (not self.config_use_google_drive or os.path.exists(self.config_calibre_dir + '/metadata.db')))
+
+        have_metadata_db = bool(self.config_calibre_dir)
+        if have_metadata_db:
+            if not self.config_use_google_drive:
+                db_file = os.path.join(self.config_calibre_dir, 'metadata.db')
+                have_metadata_db = os.path.isfile(db_file)
+        self.db_configured = have_metadata_db
+
         logger.setup(self.config_logfile, self.config_log_level)
 
     def save(self):
@@ -264,6 +266,7 @@ def _migrate_table(session, orm_class):
                 log.debug("%s: %s", column_name, err)
                 column_default = "" if column.default is None else ("DEFAULT %r" % column.default.arg)
                 alter_table = "ALTER TABLE %s ADD COLUMN `%s` %s %s" % (orm_class.__tablename__, column_name, column.type, column_default)
+                log.debug(alter_table)
                 session.execute(alter_table)
                 changed = True
 

cps/constants.py

@@ -128,4 +128,3 @@ NIGHTLY_VERSION[1] = '$Format:%cI$'
 
 # clean-up the module namespace
 del sys, os, namedtuple
-

cps/converter.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 #  This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
@@ -21,41 +20,36 @@ from __future__ import division, print_function, unicode_literals
 import os
 import re
 
-from flask_babel import gettext as _
-
-from . import config
+from . import config, logger
 from .subproc_wrapper import process_wait
 
 
-def versionKindle():
-    versions = _(u'not installed')
-    if os.path.exists(config.config_converterpath):
-        try:
-            for lines in process_wait(config.config_converterpath):
-                if re.search('Amazon kindlegen\(', lines):
-                    versions = lines
-        except Exception:
-            versions = _(u'Excecution permissions missing')
-    return {'kindlegen' : versions}
+log = logger.create()
 
+_NOT_CONFIGURED = 'not configured'
+_NOT_INSTALLED = 'not installed'
+_EXECUTION_ERROR = 'Execution permissions missing'
 
-def versionCalibre():
-    versions = _(u'not installed')
-    if os.path.exists(config.config_converterpath):
+
+def _get_command_version(path, pattern, argument=None):
+    if os.path.exists(path):
+        command = [path]
+        if argument:
+            command.append(argument)
         try:
-            for lines in process_wait([config.config_converterpath, '--version']):
-                if re.search('ebook-convert.*\(calibre', lines):
-                    versions = lines
-        except Exception:
-            versions = _(u'Excecution permissions missing')
-    return {'Calibre converter' : versions}
+            for line in process_wait(command):
+                if re.search(pattern, line):
+                    return line
+        except Exception as ex:
+            log.warning("%s: %s", path, ex)
+            return _EXECUTION_ERROR
+    return _NOT_INSTALLED
 
 
-def versioncheck():
+def get_version():
+    version = None
     if config.config_ebookconverter == 1:
-        return versionKindle()
+        version = _get_command_version(config.config_converterpath, r'Amazon kindlegen\(')
     elif config.config_ebookconverter == 2:
-        return versionCalibre()
-    else:
-        return {'ebook_converter':_(u'not configured')}
-
+        version = _get_command_version(config.config_converterpath, r'ebook-convert.*\(calibre', '--version')
+    return version or _NOT_CONFIGURED

cps/db.py

@@ -407,15 +407,13 @@ def setup_db(config):
 def dispose():
     global session
 
-    engine = None
-    if session:
-        engine = session.bind
-        try: session.close()
-        except: pass
+    old_session = session
     session = None
-
-    if engine:
-        try: engine.dispose()
+    if old_session:
+        try: old_session.close()
+        except: pass
+        if old_session.bind:
+            try: old_session.bind.dispose()
             except: pass
 
     for attr in list(Books.__dict__.keys()):

cps/editbooks.py

@@ -30,12 +30,12 @@ from uuid import uuid4
 
 from flask import Blueprint, request, flash, redirect, url_for, abort, Markup, Response
 from flask_babel import gettext as _
-from flask_login import current_user
+from flask_login import current_user, login_required
 
 from . import constants, logger, isoLanguages, gdriveutils, uploader, helper
-from . import config, get_locale, db, ub, global_WorkerThread
+from . import config, get_locale, db, ub, worker
 from .helper import order_authors, common_filters
-from .web import login_required_if_no_ano, render_title_template, edit_required, upload_required, login_required
+from .web import login_required_if_no_ano, render_title_template, edit_required, upload_required
 
 
 editbook = Blueprint('editbook', __name__)
@@ -358,7 +358,7 @@ def upload_single_file(request, book, book_id):
 
             # Queue uploader info
             uploadText=_(u"File format %(ext)s added to %(book)s", ext=file_ext.upper(), book=book.title)
-            global_WorkerThread.add_upload(current_user.nickname,
+            worker.add_upload(current_user.nickname,
                 "<a href=\"" + url_for('web.show_book', book_id=book.id) + "\">" + uploadText + "</a>")
 
 
@@ -667,7 +667,7 @@ def upload():
             if error:
                 flash(error, category="error")
             uploadText=_(u"File %(file)s uploaded", file=book.title)
-            global_WorkerThread.add_upload(current_user.nickname,
+            worker.add_upload(current_user.nickname,
                 "<a href=\"" + url_for('web.show_book', book_id=book.id) + "\">" + uploadText + "</a>")
 
             # create data for displaying display Full language name instead of iso639.part3language

cps/helper.py

@@ -60,7 +60,7 @@ try:
 except ImportError:
     use_PIL = False
 
-from . import logger, config, global_WorkerThread, get_locale, db, ub, isoLanguages
+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
@@ -112,7 +112,7 @@ def convert_book_format(book_id, calibrepath, old_book_format, new_book_format,
         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)
+        worker.add_convert(file_path, book.id, user_id, text, settings, kindle_mail)
         return None
     else:
         error_message = _(u"%(format)s not found: %(fn)s",
@@ -121,9 +121,9 @@ def convert_book_format(book_id, calibrepath, old_book_format, new_book_format,
 
 
 def send_test_mail(kindle_mail, user_name):
-    global_WorkerThread.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.'))
+    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
 
 
@@ -138,8 +138,9 @@ def send_registration_mail(e_mail, user_name, default_password, resend=False):
     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, config.get_mail_settings(),
-                                  e_mail, None, _(u"Registration e-mail for user: %(name)s", name=user_name), text)
+    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
 
 
@@ -207,13 +208,13 @@ def send_mail(book_id, book_format, convert, kindle_mail, calibrepath, user_id):
     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, 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.'))
+            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?")
 
@@ -232,7 +233,7 @@ def get_valid_filename(value, replace_whitespace=True):
         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)
+        re_slugify = re.compile(r'[\W\s-]', re.UNICODE)
         if isinstance(value, str):  # Python3 str, Python2 unicode
             value = re_slugify.sub('', value).strip()
         else:
@@ -254,7 +255,7 @@ def get_valid_filename(value, replace_whitespace=True):
 def get_sorted_author(value):
     try:
         if ',' not in value:
-            regexes = ["^(JR|SR)\.?$", "^I{1,3}\.?$", "^IV\.?$"]
+            regexes = [r"^(JR|SR)\.?$", r"^I{1,3}\.?$", r"^IV\.?$"]
             combined = "(" + ")|(".join(regexes) + ")"
             value = value.split(" ")
             if re.match(combined, value[-1].upper()):

cps/logger.py

@@ -97,15 +97,20 @@ def setup(log_file, log_level=None):
     '''
     log_file = _absolute_log_file(log_file, DEFAULT_LOG_FILE)
 
+    log_level = log_level or DEFAULT_LOG_LEVEL
+    logging.getLogger(__package__).setLevel(log_level)
+
     r = logging.root
-    r.setLevel(log_level or DEFAULT_LOG_LEVEL)
+    if log_level >= logging.INFO or os.environ.get('FLASK_DEBUG'):
+        # avoid spamming the log with debug messages from libraries
+        r.setLevel(log_level)
 
     previous_handler = r.handlers[0] if r.handlers else None
     if previous_handler:
         # if the log_file has not changed, don't create a new handler
         if getattr(previous_handler, 'baseFilename', None) == log_file:
             return
-        r.debug("logging to %s level %s", log_file, r.level)
+        logging.debug("logging to %s level %s", log_file, r.level)
 
     if log_file == LOG_TO_STDERR:
         file_handler = StreamHandler()

cps/server.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 #  This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
@@ -28,23 +27,30 @@ try:
     from gevent.pywsgi import WSGIServer
     from gevent.pool import Pool
     from gevent import __version__ as _version
-    VERSION = {'Gevent': 'v' + _version}
+    VERSION = 'Gevent ' + _version
     _GEVENT = True
 except ImportError:
     from tornado.wsgi import WSGIContainer
     from tornado.httpserver import HTTPServer
     from tornado.ioloop import IOLoop
     from tornado import version as _version
-    VERSION = {'Tornado': 'v' + _version}
+    VERSION = 'Tornado ' + _version
     _GEVENT = False
 
-from . import logger, global_WorkerThread
+from . import logger
 
 
 log = logger.create()
 
 
-class WebServer:
+
+def _readable_listen_address(address, port):
+    if ':' in address:
+        address = "[" + address + "]"
+    return '%s:%s' % (address, port)
+
+
+class WebServer(object):
 
     def __init__(self):
         signal.signal(signal.SIGINT, self._killServer)
@@ -56,14 +62,12 @@ class WebServer:
         self.app = None
         self.listen_address = None
         self.listen_port = None
-        self.IPV6 = False
         self.unix_socket_file = None
         self.ssl_args = None
 
     def init_app(self, application, config):
         self.app = application
         self.listen_address = config.get_config_ipaddress()
-        self.IPV6 = config.get_ipaddress_type()
         self.listen_port = config.config_port
 
         if config.config_access_log:
@@ -78,8 +82,7 @@ class WebServer:
         keyfile_path = config.get_config_keyfile()
         if certfile_path and keyfile_path:
             if os.path.isfile(certfile_path) and os.path.isfile(keyfile_path):
-                self.ssl_args = {"certfile": certfile_path,
-                                  "keyfile": keyfile_path}
+                self.ssl_args = dict(certfile=certfile_path, keyfile=keyfile_path)
             else:
                 log.warning('The specified paths for the ssl certificate file and/or key file seem to be broken. Ignoring ssl.')
                 log.warning('Cert path: %s', certfile_path)
@@ -107,32 +110,33 @@ class WebServer:
         if os.name != 'nt':
             unix_socket_file = os.environ.get("CALIBRE_UNIX_SOCKET")
             if unix_socket_file:
-                output = "socket:" + unix_socket_file + ":" + str(self.listen_port)
-                return self._make_gevent_unix_socket(unix_socket_file), output
+                return self._make_gevent_unix_socket(unix_socket_file), "unix:" + unix_socket_file
 
         if self.listen_address:
-            return (self.listen_address, self.listen_port), self._get_readable_listen_address()
+            return (self.listen_address, self.listen_port), None
 
         if os.name == 'nt':
             self.listen_address = '0.0.0.0'
-            return (self.listen_address, self.listen_port), self._get_readable_listen_address()
+            return (self.listen_address, self.listen_port), None
 
-        address = ('', self.listen_port)
         try:
+            address = ('::', self.listen_port)
             sock = WSGIServer.get_listener(address, family=socket.AF_INET6)
-            output = self._get_readable_listen_address(True)
         except socket.error as ex:
             log.error('%s', ex)
             log.warning('Unable to listen on "", trying on IPv4 only...')
-            output = self._get_readable_listen_address(False)
+            address = ('', self.listen_port)
             sock = WSGIServer.get_listener(address, family=socket.AF_INET)
-        return sock, output
+
+        return sock, _readable_listen_address(*address)
 
     def _start_gevent(self):
         ssl_args = self.ssl_args or {}
 
         try:
             sock, output = self._make_gevent_socket()
+            if output is None:
+                output = _readable_listen_address(self.listen_address, self.listen_port)
             log.info('Starting Gevent server on %s', output)
             self.wsgiserver = WSGIServer(sock, self.app, log=self.access_logger, spawn=Pool(), **ssl_args)
             self.wsgiserver.serve_forever()
@@ -142,30 +146,18 @@ class WebServer:
                 self.unix_socket_file = None
 
     def _start_tornado(self):
-        log.info('Starting Tornado server on %s', self._get_readable_listen_address())
+        log.info('Starting Tornado server on %s', _readable_listen_address(self.listen_address, self.listen_port))
 
         # Max Buffersize set to 200MB            )
         http_server = HTTPServer(WSGIContainer(self.app),
-                    max_buffer_size = 209700000,
+                                 max_buffer_size=209700000,
                                  ssl_options=self.ssl_args)
         http_server.listen(self.listen_port, self.listen_address)
-        self.wsgiserver=IOLoop.instance()
+        self.wsgiserver = IOLoop.instance()
         self.wsgiserver.start()
         # wait for stop signal
         self.wsgiserver.close(True)
 
-    def _get_readable_listen_address(self, ipV6=False):
-        if self.listen_address == "":
-            listen_string = '""'
-        else:
-            ipV6 = self.IPV6
-            listen_string = self.listen_address
-        if ipV6:
-            adress = "[" + listen_string + "]"
-        else:
-            adress = listen_string
-        return adress + ":" + str(self.listen_port)
-
     def start(self):
         try:
             if _GEVENT:
@@ -179,7 +171,6 @@ class WebServer:
             return False
         finally:
             self.wsgiserver = None
-            global_WorkerThread.stop()
 
         if not self.restart:
             log.info("Performing shutdown of Calibre-Web")
@@ -193,7 +184,7 @@ class WebServer:
         os.execv(sys.executable, arguments)
         return True
 
-    def _killServer(self, signum, frame):
+    def _killServer(self, ignored_signum, ignored_frame):
         self.stop()
 
     def stop(self, restart=False):

cps/services/simpleldap.py

@@ -29,10 +29,7 @@ _ldap = LDAP()
 
 
 def init_app(app, config):
-    global _ldap
-
     if config.config_login_type != constants.LOGIN_LDAP:
-        _ldap = None
         return
 
     app.config['LDAP_HOST'] = config.config_ldap_provider_url

cps/ub.py

@@ -478,13 +478,11 @@ def init_db(app_db_path):
 def dispose():
     global session
 
-    engine = None
-    if session:
-        engine = session.bind
-        try: session.close()
-        except: pass
+    old_session = session
     session = None
-
-    if engine:
-        try: engine.dispose()
+    if old_session:
+        try: old_session.close()
+        except: pass
+        if old_session.bind:
+            try: old_session.bind.dispose()
             except: pass

cps/web.py

@@ -41,8 +41,8 @@ from werkzeug.exceptions import default_exceptions
 from werkzeug.datastructures import Headers
 from werkzeug.security import generate_password_hash, check_password_hash
 
-from . import constants, logger, isoLanguages, services
-from . import global_WorkerThread, searched_ids, lm, babel, db, ub, config, negociate_locale, get_locale, app
+from . import constants, logger, isoLanguages, services, worker
+from . import searched_ids, lm, babel, db, ub, config, negociate_locale, get_locale, app
 from .gdriveutils import getFileFromEbooksFolder, do_gdrive_download
 from .helper import common_filters, get_search_results, fill_indexpage, speaking_language, check_valid_domain, \
         order_authors, get_typeahead, render_task_status, json_serial, get_cc_columns, \
@@ -245,7 +245,7 @@ def before_request():
 @web.route("/ajax/emailstat")
 @login_required
 def get_email_status_json():
-    tasks = global_WorkerThread.get_taskstatus()
+    tasks = worker.get_taskstatus()
     answer = render_task_status(tasks)
     js = json.dumps(answer, default=json_serial)
     response = make_response(js)
@@ -760,7 +760,7 @@ def category_list():
 @login_required
 def get_tasks_status():
     # if current user admin, show all email, otherwise only own emails
-    tasks = global_WorkerThread.get_taskstatus()
+    tasks = worker.get_taskstatus()
     answer = render_task_status(tasks)
     return render_title_template('tasks.html', entries=answer, title=_(u"Tasks"), page="tasks")
 

cps/worker.py

@@ -25,7 +25,7 @@ import smtplib
 import socket
 import time
 import threading
-from datetime import datetime, timedelta
+from datetime import datetime
 
 try:
     from StringIO import StringIO
@@ -66,6 +66,13 @@ RET_FAIL = 0
 RET_SUCCESS = 1
 
 
+def _get_main_thread():
+    for t in threading.enumerate():
+        if t.__class__.__name__ == '_MainThread':
+            return t
+    raise Exception("main thread not found?!")
+
+
 # For gdrive download book from gdrive to calibredir (temp dir for books), read contents in both cases and append
 # it in MIME Base64 encoded to
 def get_attachment(bookpath, filename):
@@ -173,19 +180,19 @@ class email_SSL(emailbase, smtplib.SMTP_SSL):
 class WorkerThread(threading.Thread):
 
     def __init__(self):
-        self._stopevent = threading.Event()
         threading.Thread.__init__(self)
         self.status = 0
         self.current = 0
         self.last = 0
         self.queue = list()
         self.UIqueue = list()
-        self.asyncSMTP=None
+        self.asyncSMTP = None
         self.id = 0
 
     # Main thread loop starting the different tasks
     def run(self):
-        while not self._stopevent.isSet():
+        main_thread = _get_main_thread()
+        while main_thread.is_alive():
             doLock = threading.Lock()
             doLock.acquire()
             if self.current != self.last:
@@ -200,11 +207,9 @@ class WorkerThread(threading.Thread):
                 self.current += 1
             else:
                 doLock.release()
+            if main_thread.is_alive():
                 time.sleep(1)
 
-    def stop(self):
-        self._stopevent.set()
-
     def get_send_status(self):
         if self.asyncSMTP:
             return self.asyncSMTP.getTransferStatus()
@@ -317,7 +322,7 @@ class WorkerThread(threading.Thread):
             nextline = p.communicate()[0]
             # Format of error message (kindlegen translates its output texts):
             # Error(prcgen):E23006: Language not recognized in metadata.The dc:Language field is mandatory.Aborting.
-            conv_error = re.search(".*\(.*\):(E\d+):\s(.*)", nextline, re.MULTILINE)
+            conv_error = re.search(r".*\(.*\):(E\d+):\s(.*)", nextline, re.MULTILINE)
             # If error occoures, store error message for logfile
             if conv_error:
                 error_message = _(u"Kindlegen failed with Error %(error)s. Message: %(message)s",
@@ -332,7 +337,7 @@ class WorkerThread(threading.Thread):
                     nextline = nextline.decode('utf-8')
                 log.debug(nextline.strip('\r\n'))
                 # parse progress string from calibre-converter
-                progress = re.search("(\d+)%\s.*", nextline)
+                progress = re.search(r"(\d+)%\s.*", nextline)
                 if progress:
                     self.UIqueue[self.current]['progress'] = progress.group(1) + ' %'
 
@@ -511,3 +516,23 @@ class WorkerThread(threading.Thread):
         self.UIqueue[self.current]['stat'] = STAT_FINISH_SUCCESS
         self.UIqueue[self.current]['progress'] = "100 %"
         self.UIqueue[self.current]['formRuntime'] = datetime.now() - self.queue[self.current]['starttime']
+
+
+_worker = WorkerThread()
+_worker.start()
+
+
+def get_taskstatus():
+    return _worker.get_taskstatus()
+
+
+def add_email(subject, filepath, attachment, settings, recipient, user_name, taskMessage, text):
+    return _worker.add_email(subject, filepath, attachment, settings, recipient, user_name, taskMessage, text)
+
+
+def add_upload(user_name, taskMessage):
+    return _worker.add_upload(user_name, taskMessage)
+
+
+def add_convert(file_path, bookid, user_name, taskMessage, settings, kindle_mail=None):
+    return _worker.add_convert(file_path, bookid, user_name, taskMessage, settings, kindle_mail)