#!/usr/bin/env python # -*- coding: utf-8 -*- """ openslides.main ~~~~~~~~~~~~~~~ Main script to start and set up OpenSlides. :copyright: 2011–2013 by OpenSlides team, see AUTHORS. :license: GNU GPL, see LICENSE for more details. """ import base64 import ctypes import optparse import os import socket import sys import tempfile import threading import time import webbrowser from django.conf import ENVIRONMENT_VARIABLE from django.core.management import execute_from_command_line from openslides import get_version from openslides.utils.tornado_webserver import run_tornado CONFIG_TEMPLATE = """#!/usr/bin/env python # -*- coding: utf-8 -*- import openslides.main from openslides.global_settings import * # Use 'DEBUG = True' to get more details for server errors # (Default for releases: 'False') DEBUG = False TEMPLATE_DEBUG = DEBUG DBPATH = %(dbpath)s DATABASES = { 'default': { 'ENGINE': 'django.db.backends.sqlite3', 'NAME': DBPATH, 'USER': '', 'PASSWORD': '', 'HOST': '', 'PORT': '', } } # Set timezone TIME_ZONE = 'Europe/Berlin' # Make this unique, and don't share it with anybody. SECRET_KEY = %(default_key)r # Add OpenSlides plugins to this list (see example entry in comment) INSTALLED_PLUGINS = ( # 'pluginname', ) INSTALLED_APPS += INSTALLED_PLUGINS # Absolute path to the directory that holds media. # Example: "/home/media/media.lawrence.com/" MEDIA_ROOT = %(media_root_path)s """ KEY_LENGTH = 30 # sentinel used to signal that the database ought to be stored # relative to the portable's directory _portable_db_path = object() def process_options(argv=None, check_args=True): if argv is None: argv = sys.argv[1:] parser = optparse.OptionParser( description="Run openslides using the tornado webserver") parser.add_option("-a", "--address", help="IP Address to listen on.") parser.add_option("-p", "--port", type="int", help="Port to listen on.") parser.add_option( "--syncdb", action="store_true", help="Update/create database before starting the server.") parser.add_option( "--reset-admin", action="store_true", help="Make sure the user 'admin' exists and uses 'admin' as password.") parser.add_option( "-s", "--settings", help="Path to the openslides configuration.") parser.add_option( "--no-reload", action="store_true", help="Do not reload the development server.") parser.add_option( "--no-browser", action="store_false", dest="start_browser", default=True, help="Do not automatically start web browser.") parser.add_option( "--version", action="store_true", help="Show version and exit.") opts, args = parser.parse_args(argv) if opts.version: print get_version() exit(0) # Don't check for further args if we come from our custom management # command, that always sets them if args and check_args: sys.stderr.write("This command does not take arguments!\n\n") parser.print_help() sys.exit(1) return opts def main(argv=None, check_args=True): opts = process_options(argv, check_args) _main(opts) def win32_portable_main(argv=None): """special entry point for the win32 portable version""" opts = process_options(argv) database_path = None if opts.settings is None: portable_dir = get_portable_path() try: fd, test_file = tempfile.mkstemp(dir=portable_dir) except OSError: portable_dir_writeable = False else: portable_dir_writeable = True os.close(fd) os.unlink(test_file) if portable_dir_writeable: opts.settings = os.path.join( portable_dir, "openslides", "settings.py") database_path = _portable_db_path _main(opts, database_path=database_path) def _main(opts, database_path=None): # Find the path to the settings settings_path = opts.settings if settings_path is None: settings_path = get_user_config_path('openslides', 'settings.py') # Create settings if necessary if not os.path.exists(settings_path): create_settings(settings_path, database_path) # Set the django environment to the settings setup_django_environment(settings_path) # Find url to openslides addr, port = detect_listen_opts(opts.address, opts.port) if port == 80: url = "http://%s" % addr else: url = "http://%s:%d" % (addr, port) # Create Database if necessary if not database_exists() or opts.syncdb: run_syncdb() set_system_url(url) create_or_reset_admin_user() # Reset Admin elif opts.reset_admin: create_or_reset_admin_user() # Start OpenSlides if opts.no_reload: extra_args = ['--noreload'] else: extra_args = [] if opts.start_browser: start_browser(url) start_openslides(addr, port, extra_args=extra_args) def create_settings(settings_path, database_path=None): settings_module = os.path.dirname(settings_path) if database_path is _portable_db_path: database_path = get_portable_db_path() dbpath_value = 'openslides.main.get_portable_db_path()' media_root_path_value = 'openslides.main.get_portable_media_root_path()' else: if database_path is None: database_path = get_user_data_path('openslides', 'database.sqlite') dbpath_value = repr(fs2unicode(database_path)) media_root_path_value = repr(fs2unicode(get_user_data_path('openslides', 'media', ''))) settings_content = CONFIG_TEMPLATE % dict( default_key=base64.b64encode(os.urandom(KEY_LENGTH)), dbpath=dbpath_value, media_root_path=media_root_path_value) if not os.path.exists(settings_module): os.makedirs(settings_module) if not os.path.exists(os.path.dirname(database_path)): os.makedirs(os.path.dirname(database_path)) with open(settings_path, 'w') as file: file.write(settings_content) def setup_django_environment(settings_path): settings_file = os.path.basename(settings_path) settings_module_name = "".join(settings_file.split('.')[:-1]) if '.' in settings_module_name: print "'.' is not an allowed character in the settings-file" sys.exit(1) settings_module_dir = os.path.dirname(settings_path) sys.path.append(settings_module_dir) os.environ[ENVIRONMENT_VARIABLE] = '%s' % settings_module_name def detect_listen_opts(address, port): if address is None: try: address = socket.gethostbyname(socket.gethostname()) except socket.error: address = "127.0.0.1" if port is None: # test if we can use port 80 s = socket.socket() port = 80 try: s.bind((address, port)) s.listen(-1) except socket.error: port = 8000 finally: s.close() return address, port def database_exists(): """Detect if database exists""" # can't be imported in global scope as they already require # the settings module during import from django.db import DatabaseError from django.core.exceptions import ImproperlyConfigured from openslides.participant.models import User try: # TODO: Use another model, the User could be deactivated User.objects.count() except DatabaseError: return False except ImproperlyConfigured: print "Your settings file seems broken" sys.exit(0) else: return True def run_syncdb(): # now initialize the database argv = ["", "syncdb", "--noinput"] execute_from_command_line(argv) def set_system_url(url): # can't be imported in global scope as it already requires # the settings module during import from openslides.config.api import config if config['participant_pdf_system_url'] == 'http://example.com:8000': config['participant_pdf_system_url'] = url def create_or_reset_admin_user(): # can't be imported in global scope as it already requires # the settings module during import from openslides.participant.models import User try: admin = User.objects.get(username="admin") print("Password for user admin was reset to 'admin'") except User.DoesNotExist: admin = User() admin.username = 'admin' admin.last_name = 'Administrator' print("Created default admin user") admin.is_superuser = True admin.default_password = 'admin' admin.set_password(admin.default_password) admin.save() def start_openslides(addr, port, start_browser_url=None, extra_args=[]): # Open the browser if start_browser_url: start_browser(start_browser_url) # Start the server run_tornado(addr, port) def start_browser(url): browser = webbrowser.get() def f(): time.sleep(1) browser.open(url) t = threading.Thread(target=f) t.start() def fs2unicode(s): if isinstance(s, unicode): return s fs_encoding = sys.getfilesystemencoding() or sys.getdefaultencoding() return s.decode(fs_encoding) def get_user_config_path(*args): if sys.platform == "win32": return win32_get_app_data_path(*args) config_home = os.environ.get( 'XDG_CONFIG_HOME', os.path.join(os.path.expanduser('~'), '.config')) return os.path.join(fs2unicode(config_home), *args) def get_user_data_path(*args): if sys.platform == "win32": return win32_get_app_data_path(*args) data_home = os.environ.get( 'XDG_DATA_HOME', os.path.join( os.path.expanduser('~'), '.local', 'share')) return os.path.join(fs2unicode(data_home), *args) def get_portable_path(*args): # NOTE: sys.executable will be the path to openslides.exe # since it is essentially a small wrapper that embeds the # python interpreter exename = os.path.basename(sys.executable).lower() if exename != "openslides.exe": raise Exception( "Cannot determine portable path when " "not running as portable") portable_dir = fs2unicode(os.path.dirname(os.path.abspath(sys.executable))) return os.path.join(portable_dir, *args) def get_portable_db_path(): return get_portable_path('openslides', 'database.sqlite') def get_portable_media_root_path(): return get_portable_path('openslides', 'media', '') def win32_get_app_data_path(*args): shell32 = ctypes.WinDLL("shell32.dll") SHGetFolderPath = shell32.SHGetFolderPathW SHGetFolderPath.argtypes = ( ctypes.c_void_p, ctypes.c_int, ctypes.c_void_p, ctypes.c_uint32, ctypes.c_wchar_p) SHGetFolderPath.restype = ctypes.c_uint32 CSIDL_LOCAL_APPDATA = 0x001c MAX_PATH = 260 buf = ctypes.create_unicode_buffer(MAX_PATH) res = SHGetFolderPath(0, CSIDL_LOCAL_APPDATA, 0, 0, buf) if res != 0: raise Exception("Could not deterime APPDATA path") return os.path.join(buf.value, *args) if __name__ == "__main__": main()