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mylar/Mylar.py

348 lines
14 KiB
Python
Executable file

#!/usr/bin/env python
# This file is part of Mylar.
#
# Mylar 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.
#
# Mylar 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 Mylar. If not, see <http://www.gnu.org/licenses/>.
import os, sys, locale
import errno
import shutil
import time
import threading
import signal
sys.path.insert(1, os.path.join(os.path.dirname(__file__), 'lib'))
import mylar
from mylar import webstart, logger, filechecker, versioncheck, maintenance
import argparse
if ( sys.platform == 'win32' and sys.executable.split( '\\' )[-1] == 'pythonw.exe'):
sys.stdout = open(os.devnull, "w")
sys.stderr = open(os.devnull, "w")
def handler_sigterm(signum, frame):
mylar.SIGNAL = 'shutdown'
def main():
# Fixed paths to mylar
if hasattr(sys, 'frozen'):
mylar.FULL_PATH = os.path.abspath(sys.executable)
else:
mylar.FULL_PATH = os.path.abspath(__file__)
mylar.PROG_DIR = os.path.dirname(mylar.FULL_PATH)
mylar.ARGS = sys.argv[1:]
# From sickbeard
mylar.SYS_ENCODING = None
try:
locale.setlocale(locale.LC_ALL, "")
mylar.SYS_ENCODING = locale.getpreferredencoding()
except (locale.Error, IOError):
pass
# for OSes that are poorly configured I'll just force UTF-8
if not mylar.SYS_ENCODING or mylar.SYS_ENCODING in ('ANSI_X3.4-1968', 'US-ASCII', 'ASCII'):
mylar.SYS_ENCODING = 'UTF-8'
if not logger.LOG_LANG.startswith('en'):
print 'language detected as non-English (%s). Forcing specific logging module - errors WILL NOT be captured in the logs' % logger.LOG_LANG
else:
print 'log language set to %s' % logger.LOG_LANG
# Set up and gather command line arguments
parser = argparse.ArgumentParser(description='Automated Comic Book Downloader')
subparsers = parser.add_subparsers(title='Subcommands', dest='maintenance')
parser_maintenance = subparsers.add_parser('maintenance', help='Enter maintenance mode (no GUI). Additional commands are available (maintenance --help)')
#main parser
parser.add_argument('-v', '--verbose', action='store_true', help='Increase console logging verbosity')
parser.add_argument('-q', '--quiet', action='store_true', help='Turn off console logging')
parser.add_argument('-d', '--daemon', action='store_true', help='Run as a daemon')
parser.add_argument('-p', '--port', type=int, help='Force mylar to run on a specified port')
parser.add_argument('-b', '--backup', action='store_true', help='Will automatically backup & keep the last 2 copies of the .db & ini files prior to startup')
parser.add_argument('-w', '--noweekly', action='store_true', help='Turn off weekly pull list check on startup (quicker boot sequence)')
parser.add_argument('--datadir', help='Specify a directory where to store your data files')
parser.add_argument('--config', help='Specify a config file to use')
parser.add_argument('--nolaunch', action='store_true', help='Prevent browser from launching on startup')
parser.add_argument('--pidfile', help='Create a pid file (only relevant when running as a daemon)')
parser.add_argument('--safe', action='store_true', help='redirect the startup page to point to the Manage Comics screen on startup')
parser_maintenance.add_argument('-xj', '--exportjson', action='store', help='Export existing mylar.db to json file')
parser_maintenance.add_argument('-id', '--importdatabase', action='store', help='Import a mylar.db into current db')
parser_maintenance.add_argument('-ij', '--importjson', action='store', help='Import a specified json file containing just {"ComicID": "XXXXX"} into current db')
parser_maintenance.add_argument('-st', '--importstatus', action='store_true', help='Provide current maintenance status')
parser_maintenance.add_argument('-u', '--update', action='store_true', help='force mylar to perform an update as if in GUI')
parser_maintenance.add_argument('-fs', '--fixslashes', action='store_true', help='remove double-slashes from within paths in db')
#parser_maintenance.add_argument('-it', '--importtext', action='store', help='Import a specified text file into current db')
args = parser.parse_args()
if args.maintenance:
if all([args.exportjson is None, args.importdatabase is None, args.importjson is None, args.importstatus is False, args.update is False, args.fixslashes is False]):
print 'Expecting subcommand with the maintenance positional argumeent'
sys.exit()
mylar.MAINTENANCE = True
else:
mylar.MAINTENANCE = False
if args.verbose:
print 'Verbose/Debugging mode enabled...'
mylar.LOG_LEVEL = 2
elif args.quiet:
mylar.QUIET = True
print 'Quiet logging mode enabled...'
mylar.LOG_LEVEL = 0
else:
mylar.LOG_LEVEL = 1
if args.daemon:
if sys.platform == 'win32':
print "Daemonize not supported under Windows, starting normally"
else:
mylar.DAEMON = True
if args.pidfile:
mylar.PIDFILE = str(args.pidfile)
# If the pidfile already exists, mylar may still be running, so exit
if os.path.exists(mylar.PIDFILE):
sys.exit("PID file '" + mylar.PIDFILE + "' already exists. Exiting.")
# The pidfile is only useful in daemon mode, make sure we can write the file properly
if mylar.DAEMON:
mylar.CREATEPID = True
try:
file(mylar.PIDFILE, 'w').write("pid\n")
except IOError, e:
raise SystemExit("Unable to write PID file: %s [%d]" % (e.strerror, e.errno))
else:
print("Not running in daemon mode. PID file creation disabled.")
if args.datadir:
mylar.DATA_DIR = args.datadir
else:
mylar.DATA_DIR = mylar.PROG_DIR
if args.config:
mylar.CONFIG_FILE = args.config
else:
mylar.CONFIG_FILE = os.path.join(mylar.DATA_DIR, 'config.ini')
if args.safe:
mylar.SAFESTART = True
else:
mylar.SAFESTART = False
if args.noweekly:
mylar.NOWEEKLY = True
else:
mylar.NOWEEKLY = False
# Put the database in the DATA_DIR
mylar.DB_FILE = os.path.join(mylar.DATA_DIR, 'mylar.db')
# Read config and start logging
if mylar.MAINTENANCE is False:
print('Initializing startup sequence....')
#try:
mylar.initialize(mylar.CONFIG_FILE)
#except Exception as e:
# print e
# raise SystemExit('FATAL ERROR')
if mylar.MAINTENANCE is False:
filechecker.validateAndCreateDirectory(mylar.DATA_DIR, True)
# Make sure the DATA_DIR is writeable
if not os.access(mylar.DATA_DIR, os.W_OK):
raise SystemExit('Cannot write to the data directory: ' + mylar.DATA_DIR + '. Exiting...')
# backup the db and configs before they load.
if args.backup:
print '[AUTO-BACKUP] Backing up .db and config.ini files for safety.'
backupdir = os.path.join(mylar.DATA_DIR, 'backup')
try:
os.makedirs(backupdir)
print '[AUTO-BACKUP] Directory does not exist for backup - creating : ' + backupdir
except OSError as exception:
if exception.errno != errno.EEXIST:
print '[AUTO-BACKUP] Directory already exists.'
raise
i = 0
while (i < 2):
if i == 0:
ogfile = mylar.DB_FILE
back = os.path.join(backupdir, 'mylar.db')
back_1 = os.path.join(backupdir, 'mylar.db.1')
else:
ogfile = mylar.CONFIG_FILE
back = os.path.join(backupdir, 'config.ini')
back_1 = os.path.join(backupdir, 'config.ini.1')
try:
print '[AUTO-BACKUP] Now Backing up mylar.db file'
if os.path.isfile(back_1):
print '[AUTO-BACKUP] ' + back_1 + ' exists. Deleting and keeping new.'
os.remove(back_1)
if os.path.isfile(back):
print '[AUTO-BACKUP] Now renaming ' + back + ' to ' + back_1
shutil.move(back, back_1)
print '[AUTO-BACKUP] Now copying db file to ' + back
shutil.copy(ogfile, back)
except OSError as exception:
if exception.errno != errno.EXIST:
raise
i += 1
# Rename the main thread
threading.currentThread().name = "MAIN"
if mylar.DAEMON:
mylar.daemonize()
if mylar.MAINTENANCE is True and any([args.exportjson, args.importjson, args.update is True, args.importstatus is True, args.fixslashes is True]):
loggermode = '[MAINTENANCE-MODE]'
if args.importstatus: #mylar.MAINTENANCE is True:
cs = maintenance.Maintenance('status')
cstat = cs.check_status()
else:
logger.info('%s Initializing maintenance mode' % loggermode)
if args.update is True:
logger.info('%s Attempting to update Mylar so things can work again...' % loggermode)
try:
mylar.shutdown(restart=True, update=True, maintenance=True)
except Exception as e:
sys.exit('%s Mylar failed to update: %s' % (loggermode, e))
elif args.importdatabase:
#for attempted db import.
maintenance_path = args.importdatabase
logger.info('%s db path accepted as %s' % (loggermode, maintenance_path))
di = maintenance.Maintenance('database-import', file=maintenance_path)
d = di.database_import()
elif args.importjson:
#for attempted file re-import (json format)
maintenance_path = args.importjson
logger.info('%s file indicated as being in json format - path accepted as %s' % (loggermode, maintenance_path))
ij = maintenance.Maintenance('json-import', file=maintenance_path)
j = ij.json_import()
#elif args.importtext:
# #for attempted file re-import (list format)
# maintenance_path = args.importtext
# logger.info('%s file indicated as being in list format - path accepted as %s' % (loggermode, maintenance_path))
# it = maintenance.Maintenance('list-import', file=maintenance_path)
# t = it.list_import()
elif args.exportjson:
#for export of db comicid's in json format
maintenance_path = args.exportjson
logger.info('%s file indicated as being written to json format - destination accepted as %s' % (loggermode, maintenance_path))
ej = maintenance.Maintenance('json-export', output=maintenance_path)
j = ej.json_export()
elif args.fixslashes:
#for running the fix slashes on the db manually
logger.info('%s method indicated as fix slashes' % loggermode)
fs = maintenance.Maintenance('fixslashes')
j = fs.fix_slashes()
else:
logger.info('%s Not a valid command: %s' % (loggermode, maintenance_info))
sys.exit()
logger.info('%s Exiting Maintenance mode' % (loggermode))
#possible option to restart automatically after maintenance has completed...
sys.exit()
# Force the http port if neccessary
if args.port:
http_port = args.port
logger.info('Starting Mylar on forced port: %i' % http_port)
else:
http_port = int(mylar.CONFIG.HTTP_PORT)
# Check if pyOpenSSL is installed. It is required for certificate generation
# and for CherryPy.
if mylar.CONFIG.ENABLE_HTTPS:
try:
import OpenSSL
except ImportError:
logger.warn("The pyOpenSSL module is missing. Install this " \
"module to enable HTTPS. HTTPS will be disabled.")
mylar.CONFIG.ENABLE_HTTPS = False
# Try to start the server. Will exit here is address is already in use.
web_config = {
'http_port': http_port,
'http_host': mylar.CONFIG.HTTP_HOST,
'http_root': mylar.CONFIG.HTTP_ROOT,
'enable_https': mylar.CONFIG.ENABLE_HTTPS,
'https_cert': mylar.CONFIG.HTTPS_CERT,
'https_key': mylar.CONFIG.HTTPS_KEY,
'https_chain': mylar.CONFIG.HTTPS_CHAIN,
'http_username': mylar.CONFIG.HTTP_USERNAME,
'http_password': mylar.CONFIG.HTTP_PASSWORD,
'authentication': mylar.CONFIG.AUTHENTICATION,
'login_timeout': mylar.CONFIG.LOGIN_TIMEOUT,
'opds_enable': mylar.CONFIG.OPDS_ENABLE,
'opds_authentication': mylar.CONFIG.OPDS_AUTHENTICATION,
'opds_username': mylar.CONFIG.OPDS_USERNAME,
'opds_password': mylar.CONFIG.OPDS_PASSWORD,
}
# Try to start the server.
webstart.initialize(web_config)
#check for version here after web server initialized so it doesn't try to repeatidly hit github
#for version info if it's already running
versioncheck.versionload()
if mylar.CONFIG.LAUNCH_BROWSER and not args.nolaunch:
mylar.launch_browser(mylar.CONFIG.HTTP_HOST, http_port, mylar.CONFIG.HTTP_ROOT)
# Start the background threads
mylar.start()
signal.signal(signal.SIGTERM, handler_sigterm)
while True:
if not mylar.SIGNAL:
try:
time.sleep(1)
except KeyboardInterrupt:
mylar.SIGNAL = 'shutdown'
else:
logger.info('Received signal: ' + mylar.SIGNAL)
if mylar.SIGNAL == 'shutdown':
mylar.shutdown()
elif mylar.SIGNAL == 'restart':
mylar.shutdown(restart=True)
else:
mylar.shutdown(restart=True, update=True)
mylar.SIGNAL = None
return
if __name__ == "__main__":
main()