cubicweb/server/serverconfig.py
changeset 11057 0b59724cb3f2
parent 10818 8cdf9965b2b8
child 11767 432f87a63057
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cubicweb/server/serverconfig.py	Sat Jan 16 13:48:51 2016 +0100
@@ -0,0 +1,350 @@
+# copyright 2003-2014 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
+#
+# This file is part of CubicWeb.
+#
+# CubicWeb is free software: you can redistribute it and/or modify it under the
+# terms of the GNU Lesser General Public License as published by the Free
+# Software Foundation, either version 2.1 of the License, or (at your option)
+# any later version.
+#
+# CubicWeb 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 Lesser General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Lesser General Public License along
+# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
+"""server.serverconfig definition"""
+from __future__ import print_function
+
+__docformat__ = "restructuredtext en"
+
+import sys
+from os.path import join, exists
+
+from six.moves import StringIO
+
+import logilab.common.configuration as lgconfig
+from logilab.common.decorators import cached
+
+from cubicweb.toolsutils import read_config, restrict_perms_to_user
+from cubicweb.cwconfig import CONFIGURATIONS, CubicWebConfiguration
+from cubicweb.server import SOURCE_TYPES
+
+
+USER_OPTIONS =  (
+    ('login', {'type' : 'string',
+               'default': 'admin',
+               'help': "cubicweb manager account's login "
+               '(this user will be created)',
+               'level': 0,
+               }),
+    ('password', {'type' : 'password',
+                  'default': lgconfig.REQUIRED,
+                  'help': "cubicweb manager account's password",
+                  'level': 0,
+                  }),
+    )
+
+class SourceConfiguration(lgconfig.Configuration):
+    def __init__(self, appconfig, options):
+        self.appconfig = appconfig # has to be done before super call
+        super(SourceConfiguration, self).__init__(options=options)
+
+    # make Method('default_instance_id') usable in db option defs (in native.py)
+    def default_instance_id(self):
+        return self.appconfig.appid
+
+    def input_option(self, option, optdict, inputlevel):
+        try:
+            dbdriver = self['db-driver']
+        except lgconfig.OptionError:
+            pass
+        else:
+            if dbdriver == 'sqlite':
+                if option in ('db-user', 'db-password'):
+                    return
+                if option == 'db-name':
+                    optdict = optdict.copy()
+                    optdict['help'] = 'path to the sqlite database'
+                    optdict['default'] = join(self.appconfig.appdatahome,
+                                              self.appconfig.appid + '.sqlite')
+        super(SourceConfiguration, self).input_option(option, optdict, inputlevel)
+
+
+
+def ask_source_config(appconfig, type, inputlevel=0):
+    options = SOURCE_TYPES[type].options
+    sconfig = SourceConfiguration(appconfig, options=options)
+    sconfig.input_config(inputlevel=inputlevel)
+    return sconfig
+
+def generate_source_config(sconfig, encoding=sys.stdin.encoding):
+    """serialize a repository source configuration as text"""
+    stream = StringIO()
+    optsbysect = list(sconfig.options_by_section())
+    assert len(optsbysect) == 1, (
+        'all options for a source should be in the same group, got %s'
+        % [x[0] for x in optsbysect])
+    lgconfig.ini_format(stream, optsbysect[0][1], encoding)
+    return stream.getvalue()
+
+
+class ServerConfiguration(CubicWebConfiguration):
+    """standalone RQL server"""
+    name = 'repository'
+
+    cubicweb_appobject_path = CubicWebConfiguration.cubicweb_appobject_path | set(['sobjects', 'hooks'])
+    cube_appobject_path = CubicWebConfiguration.cube_appobject_path | set(['sobjects', 'hooks'])
+
+    options = lgconfig.merge_options((
+        # ctl configuration
+        ('host',
+         {'type' : 'string',
+          'default': None,
+          'help': 'host name if not correctly detectable through gethostname',
+          'group': 'main', 'level': 1,
+          }),
+        ('pid-file',
+         {'type' : 'string',
+          'default': lgconfig.Method('default_pid_file'),
+          'help': 'repository\'s pid file',
+          'group': 'main', 'level': 2,
+          }),
+        ('uid',
+         {'type' : 'string',
+          'default': None,
+          'help': 'if this option is set, use the specified user to start \
+the repository rather than the user running the command',
+          'group': 'main', 'level': (CubicWebConfiguration.mode == 'installed') and 0 or 1,
+          }),
+        ('cleanup-session-time',
+         {'type' : 'time',
+          'default': '24h',
+          'help': 'duration of inactivity after which a session '
+          'will be closed, to limit memory consumption (avoid sessions that '
+          'never expire and cause memory leak when http-session-time is 0, or '
+          'because of bad client that never closes their connection). '
+          'So notice that even if http-session-time is 0 and the user don\'t '
+          'close his browser, he will have to reauthenticate after this time '
+          'of inactivity. Default to 24h.',
+          'group': 'main', 'level': 3,
+          }),
+        ('connections-pool-size',
+         {'type' : 'int',
+          'default': 4,
+          'help': 'size of the connections pool. Each source supporting multiple \
+connections will have this number of opened connections.',
+          'group': 'main', 'level': 3,
+          }),
+        ('rql-cache-size',
+         {'type' : 'int',
+          'default': 3000,
+          'help': 'size of the parsed rql cache size.',
+          'group': 'main', 'level': 3,
+          }),
+        ('undo-enabled',
+         {'type' : 'yn', 'default': False,
+          'help': 'enable undo support',
+          'group': 'main', 'level': 3,
+          }),
+        ('keep-transaction-lifetime',
+         {'type' : 'int', 'default': 7,
+          'help': 'number of days during which transaction records should be \
+kept (hence undoable).',
+          'group': 'main', 'level': 3,
+          }),
+        ('multi-sources-etypes',
+         {'type' : 'csv', 'default': (),
+          'help': 'defines which entity types from this repository are used \
+by some other instances. You should set this properly for these instances to \
+detect updates / deletions.',
+          'group': 'main', 'level': 3,
+          }),
+
+        ('delay-full-text-indexation',
+         {'type' : 'yn', 'default': False,
+          'help': 'When full text indexation of entity has a too important cost'
+          ' to be done when entity are added/modified by users, activate this '
+          'option and setup a job using cubicweb-ctl db-rebuild-fti on your '
+          'system (using cron for instance).',
+          'group': 'main', 'level': 3,
+          }),
+
+        # email configuration
+        ('default-recipients-mode',
+         {'type' : 'choice',
+          'choices' : ('default-dest-addrs', 'users', 'none'),
+          'default': 'default-dest-addrs',
+          'help': 'when a notification should be sent with no specific rules \
+to find recipients, recipients will be found according to this mode. Available \
+modes are "default-dest-addrs" (emails specified in the configuration \
+variable with the same name), "users" (every users which has activated \
+account with an email set), "none" (no notification).',
+          'group': 'email', 'level': 2,
+          }),
+        ('default-dest-addrs',
+         {'type' : 'csv',
+          'default': (),
+          'help': 'comma separated list of email addresses that will be used \
+as default recipient when an email is sent and the notification has no \
+specific recipient rules.',
+          'group': 'email', 'level': 2,
+          }),
+        ('supervising-addrs',
+         {'type' : 'csv',
+          'default': (),
+          'help': 'comma separated list of email addresses that will be \
+notified of every changes.',
+          'group': 'email', 'level': 2,
+          }),
+         ('zmq-address-sub',
+          {'type' : 'csv',
+           'default' : (),
+           'help': ('List of ZMQ addresses to subscribe to (requires pyzmq) '
+                    '(of the form `tcp://<ipaddr>:<port>`)'),
+           'group': 'zmq', 'level': 1,
+           }),
+         ('zmq-address-pub',
+          {'type' : 'string',
+           'default' : None,
+           'help': ('ZMQ address to use for publishing (requires pyzmq) '
+                    '(of the form `tcp://<ipaddr>:<port>`)'),
+           'group': 'zmq', 'level': 1,
+           }),
+        ) + CubicWebConfiguration.options)
+
+    # should we init the connections pool (eg connect to sources). This is
+    # usually necessary...
+    init_cnxset_pool = True
+
+    # read the schema from the database
+    read_instance_schema = True
+    # set this to true to get a minimal repository, for instance to get cubes
+    # information on commands such as i18ninstance, db-restore, etc...
+    quick_start = False
+    # check user's state at login time
+    consider_user_state = True
+
+    # should some hooks be deactivated during [pre|post]create script execution
+    free_wheel = False
+
+    # list of enables sources when sources restriction is necessary
+    # (eg repository initialization at least)
+    enabled_sources = None
+
+    def bootstrap_cubes(self):
+        from logilab.common.textutils import splitstrip
+        with open(join(self.apphome, 'bootstrap_cubes')) as f:
+            for line in f:
+                line = line.strip()
+                if not line or line.startswith('#'):
+                    continue
+                self.init_cubes(self.expand_cubes(splitstrip(line)))
+                break
+            else:
+                # no cubes
+                self.init_cubes(())
+
+    def write_bootstrap_cubes_file(self, cubes):
+        stream = open(join(self.apphome, 'bootstrap_cubes'), 'w')
+        stream.write('# this is a generated file only used for bootstraping\n')
+        stream.write('# you should not have to edit this\n')
+        stream.write('%s\n' % ','.join(cubes))
+        stream.close()
+
+    def sources_file(self):
+        return join(self.apphome, 'sources')
+
+    # this method has to be cached since when the server is running using a
+    # restricted user, this user usually don't have access to the sources
+    # configuration file (#16102)
+    @cached
+    def read_sources_file(self):
+        """return a dictionary of values found in the sources file"""
+        return read_config(self.sources_file(), raise_if_unreadable=True)
+
+    @property
+    def system_source_config(self):
+        return self.read_sources_file()['system']
+
+    @property
+    def default_admin_config(self):
+        return self.read_sources_file()['admin']
+
+    def source_enabled(self, source):
+        if self.sources_mode is not None:
+            if 'migration' in self.sources_mode:
+                assert len(self.sources_mode) == 1
+                if source.connect_for_migration:
+                    return True
+                print('not connecting to source', source.uri, 'during migration')
+                return False
+            if 'all' in self.sources_mode:
+                assert len(self.sources_mode) == 1
+                return True
+            return source.uri in self.sources_mode
+        if self.quick_start:
+            return source.uri == 'system'
+        return (not source.disabled and (
+            not self.enabled_sources or source.uri in self.enabled_sources))
+
+    def write_sources_file(self, sourcescfg):
+        """serialize repository'sources configuration into a INI like file"""
+        sourcesfile = self.sources_file()
+        if exists(sourcesfile):
+            import shutil
+            shutil.copy(sourcesfile, sourcesfile + '.bak')
+        stream = open(sourcesfile, 'w')
+        for section in ('admin', 'system'):
+            sconfig = sourcescfg[section]
+            if isinstance(sconfig, dict):
+                # get a Configuration object
+                assert section == 'system', '%r is not system' % section
+                _sconfig = SourceConfiguration(
+                    self, options=SOURCE_TYPES['native'].options)
+                for attr, val in sconfig.items():
+                    try:
+                        _sconfig.set_option(attr, val)
+                    except lgconfig.OptionError:
+                        # skip adapter, may be present on pre 3.10 instances
+                        if attr != 'adapter':
+                            self.error('skip unknown option %s in sources file' % attr)
+                sconfig = _sconfig
+            stream.write('[%s]\n%s\n' % (section, generate_source_config(sconfig)))
+        restrict_perms_to_user(sourcesfile)
+
+    def load_schema(self, expand_cubes=False, **kwargs):
+        from cubicweb.schema import CubicWebSchemaLoader
+        if expand_cubes:
+            # in case some new dependencies have been introduced, we have to
+            # reinitialize cubes so the full filesystem schema is read
+            origcubes = self.cubes()
+            self._cubes = None
+            self.init_cubes(self.expand_cubes(origcubes))
+        schema = CubicWebSchemaLoader().load(self, **kwargs)
+        if expand_cubes:
+            # restore original value
+            self._cubes = origcubes
+        return schema
+
+    def load_bootstrap_schema(self):
+        from cubicweb.schema import BootstrapSchemaLoader
+        schema = BootstrapSchemaLoader().load(self)
+        schema.name = 'bootstrap'
+        return schema
+
+    sources_mode = None
+    def set_sources_mode(self, sources):
+        self.sources_mode = sources
+
+    def migration_handler(self, schema=None, interactive=True,
+                          cnx=None, repo=None, connect=True, verbosity=None):
+        """return a migration handler instance"""
+        from cubicweb.server.migractions import ServerMigrationHelper
+        if verbosity is None:
+            verbosity = getattr(self, 'verbosity', 0)
+        return ServerMigrationHelper(self, schema, interactive=interactive,
+                                     cnx=cnx, repo=repo, connect=connect,
+                                     verbosity=verbosity)