Mini Shell
'''
Created on Sep 18, 2009
@author: sgallagh
'''
import os
import re
import sys
from .sssdoptions import SSSDOptions
from .ipachangeconf import SSSDChangeConf
# Exceptions
class SSSDConfigException(Exception): pass
class ParsingError(Exception): pass
class AlreadyInitializedError(SSSDConfigException): pass
class NotInitializedError(SSSDConfigException): pass
class NoOutputFileError(SSSDConfigException): pass
class NoServiceError(SSSDConfigException): pass
class NoSectionError(SSSDConfigException): pass
class NoOptionError(SSSDConfigException): pass
class ServiceNotRecognizedError(SSSDConfigException): pass
class ServiceAlreadyExists(SSSDConfigException): pass
class NoDomainError(SSSDConfigException): pass
class DomainNotRecognized(SSSDConfigException): pass
class DomainAlreadyExistsError(SSSDConfigException): pass
class NoSuchProviderError(SSSDConfigException): pass
class NoSuchProviderSubtypeError(SSSDConfigException): pass
class ProviderSubtypeInUse(SSSDConfigException): pass
def striplist(l):
return([x.strip() for x in l])
def options_overlap(options1, options2):
overlap = []
for option in options1:
if option in options2:
overlap.append(option)
return overlap
class SSSDConfigSchema(SSSDChangeConf):
def __init__(self, schemafile, schemaplugindir):
SSSDChangeConf.__init__(self)
#TODO: get these from a global setting
if not schemafile:
schemafile = '/usr/share/sssd/sssd.api.conf'
if not schemaplugindir:
schemaplugindir = '/usr/share/sssd/sssd.api.d'
try:
# Read the primary config file
with open(schemafile, 'r') as fd:
self.readfp(fd)
# Read in the provider files
for file in filter(lambda f: re.search(r'^sssd-.*\.conf$', f),
os.listdir(schemaplugindir)):
with open(schemaplugindir+ "/" + file) as fd:
self.readfp(fd)
except IOError:
raise
except SyntaxError: # can be raised with readfp
raise ParsingError
# Set up lookup table for types
self.type_lookup = {
'bool' : bool,
'int' : int,
'long' : long if sys.version_info[0] == 2 else int,
'float': float,
'str' : str,
'list' : list,
'None' : None
}
# Lookup table for acceptable boolean values
self.bool_lookup = {
'false' : False,
'true' : True,
}
def get_options(self, section):
if not self.has_section(section):
raise NoSectionError
options = self.options(section)
# Indexes
PRIMARY_TYPE = 0
SUBTYPE = 1
MANDATORY = 2
DEFAULT = 3
# Parse values
parsed_options = {}
for option in self.strip_comments_empty(options):
unparsed_option = option['value']
split_option = striplist(unparsed_option.split(','))
optionlen = len(split_option)
primarytype = self.type_lookup[split_option[PRIMARY_TYPE]]
subtype = self.type_lookup[split_option[SUBTYPE]]
mandatory = self.bool_lookup[split_option[MANDATORY]]
if option['name'] in SSSDOptions.option_strings:
desc = SSSDOptions.option_strings[option['name']]
else:
desc = None
if optionlen == 3:
# This option has no defaults
parsed_options[option['name']] = \
(primarytype,
subtype,
mandatory,
desc,
None)
elif optionlen == 4:
if type(split_option[DEFAULT]) == primarytype:
parsed_options[option['name']] = \
(primarytype,
subtype,
mandatory,
desc,
split_option[DEFAULT])
elif primarytype == list:
if (type(split_option[DEFAULT]) == subtype):
parsed_options[option['name']] = \
(primarytype,
subtype,
mandatory,
desc,
[split_option[DEFAULT]])
else:
try:
if subtype == bool and \
type(split_option[DEFAULT]) == str:
parsed_options[option['name']] = \
(primarytype,
subtype,
mandatory,
desc,
[self.bool_lookup[split_option[DEFAULT].lower()]])
else:
parsed_options[option['name']] = \
(primarytype,
subtype,
mandatory,
desc,
[subtype(split_option[DEFAULT])])
except ValueError:
raise ParsingError
else:
try:
if primarytype == bool and \
type(split_option[DEFAULT]) == str:
parsed_options[option['name']] = \
(primarytype,
subtype,
mandatory,
desc,
self.bool_lookup[split_option[DEFAULT].lower()])
else:
parsed_options[option['name']] = \
(primarytype,
subtype,
mandatory,
desc,
primarytype(split_option[DEFAULT]))
except ValueError:
raise ParsingError
elif optionlen > 4:
if (primarytype != list):
raise ParsingError
fixed_options = []
for x in split_option[DEFAULT:]:
if type(x) != subtype:
try:
if (subtype == bool and type(x) == str):
newvalue = self.bool_lookup[x.lower()]
else:
newvalue = subtype(x)
fixed_options.extend([newvalue])
except ValueError:
raise ParsingError
else:
fixed_options.extend([x])
parsed_options[option['name']] = \
(primarytype,
subtype,
mandatory,
desc,
fixed_options)
else:
# Bad config file
raise ParsingError
return parsed_options
def get_option(self, section, option):
if not self.has_section(section):
raise NoSectionError(section)
if not self.has_option(section, option):
raise NoOptionError("Section [%s] has no option [%s]" %
(section, option))
return self.get_options(section)[option]
def get_defaults(self, section):
if not self.has_section(section):
raise NoSectionError(section)
schema_options = self.get_options(section)
defaults = dict([(x,schema_options[x][4])
for x in schema_options.keys()
if schema_options[x][4] != None])
return defaults
def get_services(self):
service_list = [x['name'] for x in self.sections()
if x['name'] != 'service' and
not x['name'].startswith('domain') and
not x['name'].startswith('provider')]
return service_list
def get_providers(self):
providers = {}
for section in self.sections():
splitsection = section['name'].split('/')
if (splitsection[0] == 'provider'):
if(len(splitsection) == 3):
if splitsection[1] not in providers:
providers[splitsection[1]] = []
providers[splitsection[1]].extend([splitsection[2]])
for key in providers.keys():
providers[key] = tuple(providers[key])
return providers
class SSSDConfigObject(object):
def __init__(self):
self.name = None
self.options = {}
def get_name(self):
"""
Return the name of the object
=== Returns ===
The domain name
=== Errors ===
No errors
"""
return self.name
def get_option(self, optionname):
"""
Return the value of an service option
optionname:
The option to get.
=== Returns ===
The value for the requested option.
=== Errors ===
NoOptionError:
The specified option was not listed in the service
"""
if optionname in self.options.keys():
return self.options[optionname]
raise NoOptionError(optionname)
def get_all_options(self):
"""
Return a dictionary of name/value pairs for this object
=== Returns ===
A dictionary of name/value pairs currently in use for this object
=== Errors ===
No errors
"""
return self.options
def remove_option(self, optionname):
"""
Remove an option from the object. If the option does not exist, it is ignored.
=== Returns ===
No return value.
=== Errors ===
No errors
"""
if optionname in self.options:
del self.options[optionname]
class SSSDService(SSSDConfigObject):
'''
Object to manipulate SSSD service options
'''
def __init__(self, servicename, apischema):
"""
Create a new SSSDService, setting its defaults to those found in the
schema. This constructor should not be used directly. Use
SSSDConfig.new_service() instead.
name:
The service name
apischema:
An SSSDConfigSchema? object created by SSSDConfig.__init__()
=== Returns ===
The newly-created SSSDService object.
=== Errors ===
TypeError:
The API schema passed in was unusable or the name was not a string.
ServiceNotRecognizedError:
The service was not listed in the schema
"""
SSSDConfigObject.__init__(self)
if not isinstance(apischema, SSSDConfigSchema) or type(servicename) != str:
raise TypeError
if not apischema.has_section(servicename):
raise ServiceNotRecognizedError(servicename)
self.name = servicename
self.schema = apischema
# Set up the service object with any known defaults
self.options = {}
# Include a list of hidden options
self.hidden_options = []
# Set up default options for all services
self.options.update(self.schema.get_defaults('service'))
# Set up default options for this service
self.options.update(self.schema.get_defaults(self.name))
def list_options_with_mandatory(self):
"""
List options for the service, including the mandatory flag.
=== Returns ===
A dictionary of configurable options. This dictionary is keyed on the
option name with a tuple of the variable type, subtype ('None' if the
type is not a collection type), whether it is mandatory, the
translated option description, and the default value (or 'None') as
the value.
Example:
{ 'enumerate' :
(bool, None, False, u'Enable enumerating all users/groups', True) }
=== Errors ===
No errors
"""
options = {}
# Get the list of available options for all services
schema_options = self.schema.get_options('service')
options.update(schema_options)
schema_options = self.schema.get_options(self.name)
options.update(schema_options)
return options
def list_options(self):
"""
List all options that apply to this service
=== Returns ===
A dictionary of configurable options. This dictionary is keyed on the
option name with a tuple of the variable type, subtype ('None' if the
type is not a collection type), the translated option description, and
the default value (or 'None') as the value.
Example:
{ 'services' :
(list, str, u'SSSD Services to start', ['nss', 'pam']) }
=== Errors ===
No Errors
"""
options = self.list_options_with_mandatory()
# Filter out the mandatory field to maintain compatibility
# with older versions of the API
filtered_options = {}
for key in options.keys():
filtered_options[key] = (options[key][0], options[key][1], options[key][3], options[key][4])
return filtered_options
def list_mandatory_options(self):
"""
List all mandatory options that apply to this service
=== Returns ===
A dictionary of configurable options. This dictionary is keyed on the
option name with a tuple of the variable type, subtype ('None' if the
type is not a collection type), the translated option description, and
the default value (or 'None') as the value.
Example:
{ 'services' :
(list, str, u'SSSD Services to start', ['nss', 'pam']) }
=== Errors ===
No Errors
"""
options = self.list_options_with_mandatory()
# Filter out the mandatory field to maintain compatibility
# with older versions of the API
filtered_options = {}
for key in options.keys():
if options[key][2]:
filtered_options[key] = (options[key][0], options[key][1], options[key][3], options[key][4])
return filtered_options
def set_option(self, optionname, value):
"""
Set a service option to the specified value (or values)
optionname:
The option to change
value:
The value to set. This may be a single value or a list of values. If
it is set to None, it resets the option to its default.
=== Returns ===
No return value
=== Errors ===
NoOptionError:
The specified option is not listed in the schema
TypeError:
The value specified was not of the expected type
"""
if self.schema.has_option(self.name, optionname):
option_schema = self.schema.get_option(self.name, optionname)
elif self.schema.has_option('service', optionname):
option_schema = self.schema.get_option('service', optionname)
elif optionname in self.hidden_options:
# Set this option and do not add it to the list of changeable values
self.options[optionname] = value
return
else:
raise NoOptionError('Section [%s] has no option [%s]' % (self.name, optionname))
if value == None:
self.remove_option(optionname)
return
raise_error = False
# If we were expecting a list and didn't get one,
# Create a list with a single entry. If it's the
# wrong subtype, it will fail below
if option_schema[0] == list and type(value) != list:
if type(value) == str:
value = striplist(value.split(','))
else:
value = [value]
if type(value) != option_schema[0]:
# If it's possible to convert it, do so
try:
if option_schema[0] == bool and type(value) == str:
value = self.schema.bool_lookup[value.lower()]
elif option_schema[0] == int and type(value) == str:
# Make sure we handle any reasonable base
value = int(value, 0)
else:
value = option_schema[0](value)
except ValueError:
raise_error = True
except KeyError:
raise_error = True
if raise_error:
raise TypeError('Expected %s for %s, received %s' %
(option_schema[0], optionname, type(value)))
if type(value) == list:
# Iterate through the list an ensure that all members
# are of the appropriate subtype
try:
newvalue = []
for x in value:
if option_schema[1] == bool and \
type(x) == str:
newvalue.extend([self.schema.bool_lookup[x.lower()]])
else:
newvalue.extend([option_schema[1](x)])
except ValueError:
raise_error = True
except KeyError:
raise_error = True
if raise_error:
raise TypeError('Expected %s' % option_schema[1])
value = newvalue
self.options[optionname] = value
class SSSDDomain(SSSDConfigObject):
"""
Object to manipulate SSSD domain options
"""
def __init__(self, domainname, apischema):
"""
Creates a new, empty SSSDDomain. This domain is inactive by default.
This constructor should not be used directly. Use
SSSDConfig.new_domain() instead.
name:
The domain name.
apischema:
An SSSDConfigSchema object created by SSSDConfig.__init__()
=== Returns ===
The newly-created SSSDDomain object.
=== Errors ===
TypeError:
apischema was not an SSSDConfigSchema object or domainname was not
a string
"""
SSSDConfigObject.__init__(self)
if not isinstance(apischema, SSSDConfigSchema) or type(domainname) != str:
raise TypeError
self.name = domainname
self.schema = apischema
self.active = False
self.oldname = None
self.providers = []
# Set up the domain object with any known defaults
self.options = {}
# Set up default options for all domains
self.options.update(self.schema.get_defaults('provider'))
self.options.update(self.schema.get_defaults('domain'))
def set_active(self, active):
"""
Enable or disable this domain
active:
Boolean value. If True, this domain will be added to the active
domains list when it is saved. If False, it will be removed from the
active domains list when it is saved.
=== Returns ===
No return value
=== Errors ===
No errors
"""
self.active = bool(active)
def list_options_with_mandatory(self):
"""
List options for the currently-configured providers, including the
mandatory flag
=== Returns ===
A dictionary of configurable options. This dictionary is keyed on the
option name with a tuple of the variable type, subtype ('None' if the
type is not a collection type), whether it is mandatory, the
translated option description, and the default value (or 'None') as
the value.
Example:
{ 'enumerate' :
(bool, None, False, u'Enable enumerating all users/groups', True) }
=== Errors ===
No errors
"""
options = {}
# Get the list of available options for all domains
options.update(self.schema.get_options('provider'))
options.update(self.schema.get_options('domain'))
# Candidate for future optimization: will update primary type
# for each subtype
for (provider, providertype) in self.providers:
schema_options = self.schema.get_options('provider/%s'
% provider)
options.update(schema_options)
schema_options = self.schema.get_options('provider/%s/%s'
% (provider, providertype))
options.update(schema_options)
return options
def list_options(self):
"""
List options available for the currently-configured providers.
=== Returns ===
A dictionary of configurable options. This dictionary is keyed on the
option name with a tuple of the variable type, subtype ('None' if the
type is not a collection type), the translated option description, and
the default value (or 'None') as the value.
Example:
{ 'enumerate' :
(bool, None, u'Enable enumerating all users/groups', True) }
=== Errors ===
No errors
"""
options = self.list_options_with_mandatory()
# Filter out the mandatory field to maintain compatibility
# with older versions of the API
filtered_options = {}
for key in options.keys():
filtered_options[key] = (options[key][0], options[key][1], options[key][3], options[key][4])
return filtered_options
def list_mandatory_options(self):
"""
List mandatory options for the currently-configured providers.
=== Returns ===
A dictionary of configurable options. This dictionary is keyed on the
option name with a tuple of the variable type, subtype ('None' if the
type is not a collection type), the translated option description, and
the default value (or 'None') as the value.
Example:
{ 'enumerate' :
(bool, None, u'Enable enumerating all users/groups', True) }
=== Errors ===
No errors
"""
options = self.list_options_with_mandatory()
# Filter out the mandatory field to maintain compatibility
# with older versions of the API
filtered_options = {}
for key in options.keys():
if options[key][2]:
filtered_options[key] = (options[key][0], options[key][1], options[key][3], options[key][4])
return filtered_options
def list_provider_options(self, provider, provider_type=None):
"""
If provider_type is specified, list all options applicable to that
target, otherwise list all possible options available for a provider.
type:
Provider backend type. (e.g. local, ldap, krb5, etc.)
provider_type:
Subtype of the backend type. (e.g. id, auth, access, chpass)
=== Returns ===
A dictionary of configurable options for the specified provider type.
This dictionary is keyed on the option name with a tuple of the
variable type, subtype ('None' if the type is not a collection type),
the translated option description, and the default value (or 'None')
as the value.
=== Errors ===
NoSuchProviderError:
The specified provider is not listed in the schema or plugins
NoSuchProviderSubtypeError:
The specified provider subtype is not listed in the schema
"""
#TODO section checking
options = self.schema.get_options('provider/%s' % provider)
if(provider_type):
options.update(self.schema.get_options('provider/%s/%s' %
(provider, provider_type)))
else:
# Add options from all provider subtypes
known_providers = self.list_providers()
for provider_type in known_providers[provider]:
options.update(self.list_provider_options(provider,
provider_type))
return options
def list_providers(self):
"""
Return a dictionary of providers.
=== Returns ===
Returns a dictionary of providers, keyed on the primary type, with the
value being a tuple of the subtypes it supports.
Example:
{ 'ldap' : ('id', 'auth', 'chpass') }
=== Errors ===
No Errors
"""
return self.schema.get_providers()
def set_option(self, option, value):
"""
Set a domain option to the specified value (or values)
option:
The option to change.
value:
The value to set. This may be a single value or a list of values.
If it is set to None, it resets the option to its default.
=== Returns ===
No return value.
=== Errors ===
NoOptionError:
The specified option is not listed in the schema
TypeError:
The value specified was not of the expected type
"""
options = self.list_options()
if (option not in options.keys()):
raise NoOptionError('Section [%s] has no option [%s]' %
(self.name, option))
if value == None:
self.remove_option(option)
return
option_schema = options[option]
raise_error = False
# If we were expecting a list and didn't get one,
# Create a list with a single entry. If it's the
# wrong subtype, it will fail below
if option_schema[0] == list and type(value) != list:
if type(value) == str:
value = striplist(value.split(','))
else:
value = [value]
if type(value) != option_schema[0]:
# If it's possible to convert it, do so
try:
if option_schema[0] == bool and \
type(value) == str:
value = self.schema.bool_lookup[value.lower()]
elif option_schema[0] == int and type(value) == str:
# Make sure we handle any reasonable base
value = int(value, 0)
else:
value = option_schema[0](value)
except ValueError:
raise_error = True
except KeyError:
raise_error = True
if raise_error:
raise TypeError('Expected %s for %s, received %s' %
(option_schema[0], option, type(value)))
if type(value) == list:
# Iterate through the list an ensure that all members
# are of the appropriate subtype
try:
newvalue = []
for x in value:
if option_schema[1] == bool and \
type(x) == str:
newvalue.extend([self.schema.bool_lookup[x.lower()]])
else:
newvalue.extend([option_schema[1](x)])
except ValueError:
raise_error = True
except KeyError:
raise_error = True
if raise_error:
raise TypeError('Expected %s' % option_schema[1])
value = newvalue
# Check whether we're adding a provider entry.
is_provider = option.rfind('_provider')
if (is_provider > 0):
provider = option[:is_provider]
try:
self.add_provider(value, provider)
except NoSuchProviderError:
raise NoOptionError
else:
self.options[option] = value
def set_name(self, newname):
"""
Change the name of the domain
newname:
New name for this domain
=== Returns ===
No return value.
=== Errors ===
TypeError:
newname was not a string
"""
if type(newname) != str:
raise TypeError
if not self.oldname:
# Only set the oldname once
self.oldname = self.name
self.name = newname
def add_provider(self, provider, provider_type):
"""
Add a new provider type to the domain
type:
Provider backend type. (e.g. local, ldap, krb5, etc.)
subtype:
Subtype of the backend type. (e.g. id, auth, chpass)
=== Returns ===
No return value.
=== Errors ===
ProviderSubtypeInUse:
Another backend is already providing this subtype
NoSuchProviderError:
The specified provider is not listed in the schema or plugins
NoSuchProviderSubtypeError:
The specified provider subtype is not listed in the schema
"""
# Check that provider and provider_type are valid
configured_providers = self.list_providers()
if provider in configured_providers.keys():
if provider_type not in configured_providers[provider]:
raise NoSuchProviderSubtypeError(provider_type)
else:
raise NoSuchProviderError
# Don't add a provider twice
with_this_type = [x for x in self.providers if x[1] == provider_type]
if len(with_this_type) > 1:
# This should never happen!
raise ProviderSubtypeInUse
if len(with_this_type) == 1:
if with_this_type[0][0] != provider:
raise ProviderSubtypeInUse(with_this_type[0][0])
else:
self.providers.extend([(provider, provider_type)])
option_name = '%s_provider' % provider_type
self.options[option_name] = provider
# Add defaults for this provider
self.options.update(self.schema.get_defaults('provider/%s' %
provider))
self.options.update(self.schema.get_defaults('provider/%s/%s' %
(provider,
provider_type)))
def remove_provider(self, provider_type):
"""
Remove a provider from the domain. If the provider is not present, it
is ignored.
provider_type:
Subtype of the backend type. (e.g. id, auth, chpass)
=== Returns ===
No return value.
=== Errors ===
No Errors
"""
provider = None
for (provider, ptype) in self.providers:
if ptype == provider_type:
break
provider = None
# Check whether the provider_type was found
if not provider:
return
# Remove any unused options when removing the provider.
options = self.list_provider_options(provider, provider_type)
# Trim any options that are used by other providers,
# if that provider is in use
for (prov, ptype) in self.providers:
# Ignore the one being removed
if (prov, ptype) == (provider, provider_type):
continue
provider_options = self.list_provider_options(prov, ptype)
overlap = options_overlap(options.keys(), provider_options.keys())
for opt in overlap:
del options[opt]
# We should now have a list of options used only by this
# provider. So we remove them.
for option in options:
if option in self.options:
del self.options[option]
# Remove this provider from the option list
option = '%s_provider' % provider_type
if option in self.options:
del self.options[option]
self.providers.remove((provider, provider_type))
class SSSDConfig(SSSDChangeConf):
"""
class SSSDConfig
Primary class for operating on SSSD configurations
"""
def __init__(self, schemafile=None, schemaplugindir=None):
"""
Initialize the SSSD config parser/editor. This constructor does not
open or create a config file. If the schemafile and schemaplugindir
are not passed, it will use the system defaults.
schemafile:
The path to the API schema config file. Usually
/usr/share/sssd/sssd.api.conf
schemaplugindir:
The path the directory containing the provider schema config files.
Usually /usr/share/sssd/sssd.api.d
=== Returns ===
The newly-created SSSDConfig object.
=== Errors ===
IOError:
Exception raised when the schema file could not be opened for
reading.
ParsingError:
The main schema file or one of those in the plugin directory could
not be parsed.
"""
SSSDChangeConf.__init__(self)
self.schema = SSSDConfigSchema(schemafile, schemaplugindir)
self.configfile = None
self.initialized = False
self.API_VERSION = 2
def import_config(self,configfile=None):
"""
Read in a config file, populating all of the service and domain
objects with the read values.
configfile:
The path to the SSSD config file. If not specified, use the system
default, usually /etc/sssd.conf
=== Returns ===
No return value
=== Errors ===
IOError:
Exception raised when the file could not be opened for reading
ParsingError:
Exception raised when errors occur attempting to parse a file.
AlreadyInitializedError:
This SSSDConfig object was already initialized by a call to
import_config() or new_config()
"""
if self.initialized:
raise AlreadyInitializedError
if not configfile:
#TODO: get this from a global setting
configfile = '/etc/sssd/sssd.conf'
# open will raise an IOError if it fails
with open(configfile, 'r') as fd:
try:
self.readfp(fd)
except Exception:
raise ParsingError
self.configfile = configfile
self.initialized = True
try:
if int(self.get('sssd', 'config_file_version')) != self.API_VERSION:
raise ParsingError("Wrong config_file_version")
except TypeError:
# This happens when config_file_version is missing. We
# can assume it is the default version and continue.
pass
def new_config(self):
"""
Initialize the SSSDConfig object with the defaults from the schema.
=== Returns ===
No return value
=== Errors ===
AlreadyInitializedError:
This SSSDConfig object was already initialized by a call to
import_config() or new_config()
"""
if self.initialized:
raise AlreadyInitializedError
self.initialized = True
#Initialize all services
for servicename in self.schema.get_services():
service = self.new_service(servicename)
def write(self, outputfile=None):
"""
Write out the configuration to a file.
outputfile:
The path to write the new config file. If it is not specified, it
will use the path specified by the import() call.
=== Returns ===
No return value
=== Errors ===
IOError:
Exception raised when the file could not be opened for writing
NotInitializedError:
This SSSDConfig object has not had import_config() or new_config()
run on it yet.
NoOutputFileError:
No outputfile was specified and this SSSDConfig object was not
initialized by import()
"""
if not self.initialized:
raise NotInitializedError
if outputfile == None:
if(self.configfile == None):
raise NoOutputFileError
outputfile = self.configfile
# open() will raise IOError if it fails
old_umask = os.umask(0o177)
with open(outputfile, "w") as of:
output = self.dump(self.opts)
of.write(output)
os.umask(old_umask)
def list_active_services(self):
"""
Return a list of all active services.
=== Returns ===
The list of active services.
=== Errors ===
NotInitializedError:
This SSSDConfig object has not had import_config() or new_config()
run on it yet.
"""
if not self.initialized:
raise NotInitializedError
if (self.has_option('sssd', 'services')):
active_services = striplist(self.get('sssd', 'services').split(','))
service_dict = dict.fromkeys(active_services)
if '' in service_dict:
del service_dict['']
# Remove any entries in this list that don't
# correspond to an active service, for integrity
configured_services = self.list_services()
for srv in list(service_dict):
if srv not in configured_services:
del service_dict[srv]
active_services = list(service_dict)
else:
active_services = []
return active_services
def list_inactive_services(self):
"""
Return a list of all disabled services.
=== Returns ===
The list of inactive services.
=== Errors ===
NotInitializedError:
This SSSDConfig object has not had import_config() or new_config()
run on it yet.
"""
if not self.initialized:
raise NotInitializedError
if (self.has_option('sssd', 'services')):
active_services = striplist(self.get('sssd', 'services').split(','))
else:
active_services = []
services = [x for x in self.list_services()
if x not in active_services]
return services
def list_services(self):
"""
Retrieve a list of known services.
=== Returns ===
The list of known services.
=== Errors ===
NotInitializedError:
This SSSDConfig object has not had import_config() or new_config()
run on it yet.
"""
if not self.initialized:
raise NotInitializedError
service_list = [x['name'] for x in self.sections()
if not x['name'].startswith('domain') ]
return service_list
def get_service(self, name):
"""
Get an SSSDService object to edit a service.
name:
The name of the service to return.
=== Returns ===
An SSSDService instance containing the current state of a service in
the SSSDConfig
=== Errors ===
NoServiceError:
There is no such service with the specified name in the SSSDConfig.
NotInitializedError:
This SSSDConfig object has not had import_config() or new_config()
run on it yet.
"""
if not self.initialized:
raise NotInitializedError
if not self.has_section(name):
raise NoServiceError
service = SSSDService(name, self.schema)
for opt in self.strip_comments_empty(self.options(name)):
try:
service.set_option(opt['name'], opt['value'])
except NoOptionError:
# If we come across an option that we don't recognize,
# we should just ignore it and continue
pass
return service
def new_service(self, name):
"""
Create a new service from the defaults and return the SSSDService
object for it. This function will also add this service to the list of
active services in the [SSSD] section.
name:
The name of the service to create and return.
=== Returns ===
The newly-created SSSDService object
=== Errors ===
ServiceNotRecognizedError:
There is no such service in the schema.
ServiceAlreadyExistsError:
The service being created already exists in the SSSDConfig object.
NotInitializedError:
This SSSDConfig object has not had import_config() or new_config()
run on it yet.
"""
if not self.initialized:
raise NotInitializedError
if (self.has_section(name)):
raise ServiceAlreadyExists(name)
service = SSSDService(name, self.schema)
self.save_service(service)
return service
def activate_service(self, name):
"""
Activate a service
name:
The name of the service to activate
=== Returns ===
No return value
=== Errors ===
NotInitializedError:
This SSSDConfig object has not had import_config() or new_config()
run on it yet.
NoServiceError:
There is no such service with the specified name in the SSSDConfig.
"""
if not self.initialized:
raise NotInitializedError
if name not in self.list_services():
raise NoServiceError
item = self.get_option_index('sssd', 'services')[1]
if not item:
self.set('sssd','services', name)
return
# Turn the items into a set of dictionary keys
# This guarantees uniqueness and makes it easy
# to add a new value
service_dict = dict.fromkeys(striplist(item['value'].split(',')))
if '' in service_dict:
del service_dict['']
# Add a new key for the service being activated
service_dict[name] = None
# Write out the joined keys
self.set('sssd','services', ", ".join(service_dict.keys()))
def deactivate_service(self, name):
"""
Deactivate a service
name:
The name of the service to deactivate
=== Returns ===
No return value
=== Errors ===
NotInitializedError:
This SSSDConfig object has not had import_config() or new_config()
run on it yet.
NoServiceError:
There is no such service with the specified name in the SSSDConfig.
"""
if not self.initialized:
raise NotInitializedError
if name not in self.list_services():
raise NoServiceError
item = self.get_option_index('sssd', 'services')[1]
if not item:
self.set('sssd','services', '')
return
# Turn the items into a set of dictionary keys
# This guarantees uniqueness and makes it easy
# to remove the one unwanted value.
service_dict = dict.fromkeys(striplist(item['value'].split(',')))
if '' in service_dict:
del service_dict['']
# Remove the unwanted service from the lest
if name in service_dict:
del service_dict[name]
# Write out the joined keys
self.set('sssd','services', ", ".join(service_dict.keys()))
def delete_service(self, name):
"""
Remove a service from the SSSDConfig object. This function will also
remove this service from the list of active services in the [SSSD]
section. Has no effect if the service does not exist.
=== Returns ===
No return value
=== Errors ===
NotInitializedError:
This SSSDConfig object has not had import_config() or new_config()
run on it yet.
"""
if not self.initialized:
raise NotInitializedError
self.delete_option('section', name)
def save_service(self, service):
"""
Save the changes made to the service object back to the SSSDConfig
object.
service_object:
The SSSDService object to save to the configuration.
=== Returns ===
No return value
=== Errors ===
NotInitializedError:
This SSSDConfig object has not had import_config() or new_config()
run on it yet.
TypeError:
service_object was not of the type SSSDService
"""
if not self.initialized:
raise NotInitializedError
if not isinstance(service, SSSDService):
raise TypeError
name = service.get_name()
# Ensure that the existing section is removed
# This way we ensure that we are getting a
# complete copy of the service.
# delete_option() is a noop if the section
# does not exist.
index = self.delete_option('section', name)
addkw = []
for option,value in service.get_all_options().items():
if (type(value) == list):
value = ', '.join(value)
if option == "debug_level":
value = self._get_debug_level_val(value)
addkw.append( { 'type' : 'option',
'name' : option,
'value' : str(value) } )
self.add_section(name, addkw, index)
def list_active_domains(self):
"""
Return a list of all active domains.
=== Returns ===
The list of configured, active domains.
=== Errors ===
NotInitializedError:
This SSSDConfig object has not had import_config() or new_config()
run on it yet.
"""
if not self.initialized:
raise NotInitializedError
if (self.has_option('sssd', 'domains')):
sssd_domains = striplist(self.get('sssd', 'domains').split(','))
domain_dict = dict.fromkeys(sssd_domains)
if '' in domain_dict:
del domain_dict['']
sssd_domains = list(domain_dict)
else:
sssd_domains = []
domains = self.list_domains()
for dom in self.list_domains():
# Remove explicitly enabled from the list
if self.has_option('domain/%s' % dom, 'enabled'):
if self.get('domain/%s' % dom, 'enabled') == 'false':
domains.remove(dom)
if dom in sssd_domains:
sssd_domains.remove(dom)
else:
if dom not in sssd_domains:
domains.remove(dom)
return domains
def list_inactive_domains(self):
"""
Return a list of all configured, but disabled domains.
=== Returns ===
The list of configured, inactive domains.
=== Errors ===
NotInitializedError:
This SSSDConfig object has not had import_config() or new_config()
run on it yet.
"""
if not self.initialized:
raise NotInitializedError
if (self.has_option('sssd', 'domains')):
sssd_domains = striplist(self.get('sssd', 'domains').split(','))
domain_dict = dict.fromkeys(sssd_domains)
if '' in domain_dict:
del domain_dict['']
sssd_domains = list(domain_dict)
else:
sssd_domains = []
domains = self.list_domains()
for dom in self.list_domains():
# Remove explicitly enabled from the list
if self.has_option('domain/%s' % dom, 'enabled'):
if self.get('domain/%s' % dom, 'enabled') == 'true':
domains.remove(dom)
else:
if dom in sssd_domains:
domains.remove(dom)
return domains
def list_domains(self):
"""
Return a list of all configured domains, including inactive domains.
=== Returns ===
The list of configured domains, both active and inactive.
=== Errors ===
NotInitializedError:
This SSSDConfig object has not had import_config() or new_config()
run on it yet.
"""
if not self.initialized:
raise NotInitializedError
domains = [x['name'][7:] for x in self.sections() if x['name'].startswith('domain/')]
return domains
def get_domain(self, name):
"""
Get an SSSDDomain object to edit a domain.
name:
The name of the domain to return.
=== Returns ===
An SSSDDomain instance containing the current state of a domain in the
SSSDConfig
=== Errors ===
NoDomainError:
There is no such domain with the specified name in the SSSDConfig.
NotInitializedError:
This SSSDConfig object has not had import_config() or new_config()
run on it yet.
"""
if not self.initialized:
raise NotInitializedError
if not self.has_section('domain/%s' % name):
raise NoDomainError(name)
domain = SSSDDomain(name, self.schema)
# Read in the providers first or we may have type
# errors trying to read in their options
providers = [ (x['name'],x['value']) for x in self.strip_comments_empty(self.options('domain/%s' % name))
if x['name'].rfind('_provider') > 0]
# Handle the default value for providers if those weren't set in the configuration file
default_providers = {
'id_provider': None,
'sudo_provider': 'id_provider',
'auth_provider': 'id_provider',
'chpass_provider': 'auth_provider',
'autofs_provider': 'id_provider',
'selinux_provider': 'id_provider',
'subdomains_provider': 'id_provider',
'session_provider': 'id_provider',
'hostid_provider': 'id_provider',
'resolver_provider': 'id_provider',
}
configured_providers = domain.list_providers()
providers_list = [x[0] for x in providers]
if 'access_provider' not in providers_list:
providers.append(('access_provider', 'permit'))
for provider, default_provider in default_providers.items():
if provider in providers_list:
continue
if default_provider in providers_list:
default_provider_value = providers[providers_list.index(default_provider)]
if default_provider_value[1] in configured_providers.keys():
if provider[:provider.rfind('_provider')] in configured_providers[default_provider_value[1]]:
providers.append((provider, default_provider_value[1]))
for (option, value) in providers:
try:
domain.set_option(option, value)
except NoOptionError:
# If we come across an option that we don't recognize,
# we should just ignore it and continue
pass
# Read in all the options from the configuration
for opt in self.strip_comments_empty(self.options('domain/%s' % name)):
if (opt['name'], opt['value']) not in providers:
try:
domain.set_option(opt['name'], opt['value'])
except NoOptionError:
# If we come across an option that we don't recognize,
# we should just ignore it and continue
pass
# Determine if this domain is currently active
domain.active = self.is_domain_active(name)
return domain
def new_domain(self, name):
"""
Create a new, empty domain and return the SSSDDomain object for it.
name:
The name of the domain to create and return.
=== Returns ===
The newly-created SSSDDomain object
=== Errors ===
DomainAlreadyExistsError:
The service being created already exists in the SSSDConfig object.
NotInitializedError:
This SSSDConfig object has not had import_config() or new_config()
run on it yet.
"""
if not self.initialized:
raise NotInitializedError
if self.has_section('domain/%s' % name):
raise DomainAlreadyExistsError
domain = SSSDDomain(name, self.schema)
self.save_domain(domain)
return domain
def is_domain_active(self, name):
"""
Is a particular domain set active
name:
The name of the configured domain to check
=== Returns ===
True if the domain is active, False if it is inactive
=== Errors ===
NotInitializedError:
This SSSDConfig object has not had import_config() or new_config()
run on it yet.
NoDomainError:
No domain by this name is configured
"""
if not self.initialized:
raise NotInitializedError
if name not in self.list_domains():
raise NoDomainError
return name in self.list_active_domains()
def activate_domain(self, name):
"""
Activate a configured domain
name:
The name of the configured domain to activate
=== Returns ===
No return value
=== Errors ===
NotInitializedError:
This SSSDConfig object has not had import_config() or new_config()
run on it yet.
NoDomainError:
No domain by this name is configured
"""
if not self.initialized:
raise NotInitializedError
if name not in self.list_domains():
raise NoDomainError
item = self.get_option_index('sssd', 'domains')[1]
if not item:
self.set('sssd','domains', name)
return
# Turn the items into a set of dictionary keys
# This guarantees uniqueness and makes it easy
# to add a new value
domain_dict = dict.fromkeys(striplist(item['value'].split(',')))
if '' in domain_dict:
del domain_dict['']
# Add a new key for the domain being activated
domain_dict[name] = None
# Write out the joined keys
self.set('sssd','domains', ", ".join(domain_dict.keys()))
def deactivate_domain(self, name):
"""
Deactivate a configured domain
name:
The name of the configured domain to deactivate
=== Returns ===
No return value
=== Errors ===
NotInitializedError:
This SSSDConfig object has not had import_config() or new_config()
run on it yet.
NoDomainError:
No domain by this name is configured
"""
if not self.initialized:
raise NotInitializedError
if name not in self.list_domains():
raise NoDomainError
item = self.get_option_index('sssd', 'domains')[1]
if not item:
self.set('sssd','domains', '')
return
# Turn the items into a set of dictionary keys
# This guarantees uniqueness and makes it easy
# to remove the one unwanted value.
domain_dict = dict.fromkeys(striplist(item['value'].split(',')))
if '' in domain_dict:
del domain_dict['']
# Remove the unwanted domain from the lest
if name in domain_dict:
del domain_dict[name]
# Write out the joined keys
self.set('sssd','domains', ", ".join(domain_dict.keys()))
def delete_domain(self, name):
"""
Remove a domain from the SSSDConfig object. This function will also
remove this domain from the list of active domains in the [SSSD]
section, if it is there.
=== Returns ===
No return value
=== Errors ===
NotInitializedError:
This SSSDConfig object has not had import_config() or new_config()
run on it yet.
"""
if not self.initialized:
raise NotInitializedError
# Remove the domain from the active domains list if applicable
self.deactivate_domain(name)
self.delete_option('section', 'domain/%s' % name)
def save_domain(self, domain):
"""
Save the changes made to the domain object back to the SSSDConfig
object. If this domain is marked active, ensure it is present in the
active domain list in the [SSSD] section
domain_object:
The SSSDDomain object to save to the configuration.
=== Returns ===
No return value
=== Errors ===
NotInitializedError:
This SSSDConfig object has not had import_config() or new_config()
run on it yet.
TypeError:
domain_object was not of type SSSDDomain
"""
if not self.initialized:
raise NotInitializedError
if not isinstance(domain, SSSDDomain):
raise TypeError
name = domain.get_name()
oldindex = None
if domain.oldname and domain.oldname != name:
# We are renaming this domain
# Remove the old section
self.deactivate_domain(domain.oldname)
oldindex = self.delete_option('section', 'domain/%s' %
domain.oldname)
# Reset the oldname, in case we're not done with
# this domain object.
domain.oldname = None;
sectionname = 'domain/%s' % name
(no, section_subtree) = self.findOpts(self.opts, 'section', sectionname)
if name not in self.list_domains():
self.add_section(sectionname, []);
section_options = self.options(sectionname)[:]
for option in section_options:
if option['type'] == 'option':
if option['name'] not in domain.get_all_options():
self.delete_option_subtree(section_subtree['value'], 'option', option['name'], True)
for option,value in domain.get_all_options().items():
if (type(value) == list):
value = ', '.join(value)
if option == "debug_level":
value = self._get_debug_level_val(value)
self.set(sectionname, option, str(value))
if domain.active:
self.activate_domain(name)
else:
self.deactivate_domain(name)
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