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accounts-service: Rename allow-app-installation to be system-specific 

This is in preparation for adding a second boolean for the flatpak user
repository. Make the existing allow-app-installation boolean control
permissions for the flatpak system repository.

Having one boolean for each repository means we can allow users to
install to their user repository by default (subject to OARS ratings),
but not be allowed to install to the system repository.

While changing the name and semantics of the boolean, flip its default
value from True to False. Rather than letting any non-admin user install
new apps by default (subject to OARS restrictions), re-limit it to admin
users and users whose allow-system-installation key has been explicitly
set to True by the admin.

Signed-off-by: Philip Withnall <withnall@endlessm.com>

https://phabricator.endlessm.com/T24457
This commit is contained in:
Philip Withnall 2018-11-28 16:39:39 +00:00
parent f2e7cbfd03
commit 3ec77740c7
5 changed files with 66 additions and 61 deletions
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16
accounts-service/com.endlessm.ParentalControls.AppFilter.xml
View File

@ -61,16 +61,18 @@
</property>
<!--
allow-app-installation:
allow-system-installation:
Whether app installation is allowed for the user at all. If this is true,
the polkit check for allowing app installation succeeds, and the
oars-filter does not restrict this app, app installation can proceed.
Whether this user is allowed to install to the flatpak system repository.
If this is true, and if the polkit check for allowing app installation
succeeds, and if the oars-filter does not restrict this app, app
installation can proceed.
If this is false, the user is not allowed to install any apps.
If this is false, the user is not allowed to install any apps or runtimes
to the flatpak system repository.
-->
<property name="allow-app-installation" type="b" access="readwrite">
<annotation name="org.freedesktop.Accounts.DefaultValue" value="true"/>
<property name="allow-system-installation" type="b" access="readwrite">
<annotation name="org.freedesktop.Accounts.DefaultValue" value="false"/>
</property>
</interface>
</node>

27
eos-parental-controls-client/eos-parental-controls-client.py
View File

@ -138,10 +138,10 @@ def command_get(user, quiet=False, interactive=True):
if not sections:
print(' (No OARS values)')
if app_filter.is_app_installation_allowed():
print('App installation is allowed')
if app_filter.is_system_installation_allowed():
print('App installation is allowed to system repository')
else:
print('App installation is disallowed')
print('App installation is disallowed to system repository')
def command_check(user, path, quiet=False, interactive=True):
@ -186,12 +186,12 @@ def command_oars_section(user, section, quiet=False, interactive=True):
section, user_id, __oars_value_to_string(value)))
def command_set(user, allow_app_installation=True, app_filter_args=None,
def command_set(user, allow_system_installation=False, app_filter_args=None,
quiet=False, interactive=True):
"""Set the app filter for the given user."""
user_id = __lookup_user_id_or_error(user)
builder = EosParentalControls.AppFilterBuilder.new()
builder.set_allow_app_installation(allow_app_installation)
builder.set_allow_system_installation(allow_system_installation)
for arg in app_filter_args:
if '=' in arg:
@ -277,17 +277,20 @@ def main():
parser_set.add_argument('user', default='', nargs='?',
help='user ID or username to get the app filter '
'for (default: current user)')
parser_set.add_argument('--allow-app-installation',
dest='allow_app_installation', action='store_true',
help='allow app installation in general')
parser_set.add_argument('--disallow-app-installation',
dest='allow_app_installation',
parser_set.add_argument('--allow-system-installation',
dest='allow_system_installation',
action='store_true',
help='allow installation to the system flatpak '
'repo in general')
parser_set.add_argument('--disallow-system-installation',
dest='allow_system_installation',
action='store_false',
help='unconditionally disallow app installation')
help='unconditionally disallow installation to '
'the system flatpak repo')
parser_set.add_argument('app_filter_args', nargs='*',
help='paths to blacklist and OARS section=value '
'pairs to store')
parser_set.set_defaults(allow_app_installation=True)
parser_set.set_defaults(allow_system_installation=False)
# Parse the command line arguments and run the subcommand.
args = parser.parse_args()

64
libeos-parental-controls/app-filter.c
View File

@ -59,7 +59,7 @@ struct _EpcAppFilter
EpcAppFilterListType app_list_type;
GVariant *oars_ratings; /* (type a{ss}) (owned non-floating) */
gboolean allow_app_installation;
gboolean allow_system_installation;
};
G_DEFINE_BOXED_TYPE (EpcAppFilter, epc_app_filter,
@ -376,7 +376,7 @@ epc_app_filter_get_oars_sections (EpcAppFilter *filter)
* section, inclusive. Any app with a more intense value for this section must
* be hidden from the user whose @filter this is.
*
* This does not factor in epc_app_filter_is_app_installation_allowed().
* This does not factor in epc_app_filter_is_system_installation_allowed().
*
* Returns: an #EpcAppFilterOarsValue
* Since: 0.1.0
@ -409,25 +409,25 @@ epc_app_filter_get_oars_value (EpcAppFilter *filter,
}
/**
* epc_app_filter_is_app_installation_allowed:
* epc_app_filter_is_system_installation_allowed:
* @filter: an #EpcAppFilter
*
* Get whether app installation is allowed at all for the user. This should be
* queried in addition to the OARS values (epc_app_filter_get_oars_value()) — if
* it returns %FALSE, the OARS values should be ignored and app installation
* should be unconditionally disallowed.
* Get whether the user is allowed to install to the flatpak system repository.
* This should be queried in addition to the OARS values
* (epc_app_filter_get_oars_value()) — if it returns %FALSE, the OARS values
* should be ignored and app installation should be unconditionally disallowed.
*
* Returns: %TRUE if app installation is allowed in general for this user;
* %FALSE if it is unconditionally disallowed for this user
* Returns: %TRUE if app installation is allowed to the system repository for
* this user; %FALSE if it is unconditionally disallowed for this user
* Since: 0.1.0
*/
gboolean
epc_app_filter_is_app_installation_allowed (EpcAppFilter *filter)
epc_app_filter_is_system_installation_allowed (EpcAppFilter *filter)
{
g_return_val_if_fail (filter != NULL, FALSE);
g_return_val_if_fail (filter->ref_count >= 1, FALSE);
return filter->allow_app_installation;
return filter->allow_system_installation;
}
/**
@ -566,7 +566,7 @@ epc_get_app_filter (GDBusConnection *connection,
const gchar *content_rating_kind;
g_autoptr(GVariant) oars_variant = NULL;
g_autoptr(GHashTable) oars_map = NULL;
gboolean allow_app_installation;
gboolean allow_system_installation;
g_return_val_if_fail (connection == NULL || G_IS_DBUS_CONNECTION (connection), NULL);
g_return_val_if_fail (cancellable == NULL || G_IS_CANCELLABLE (cancellable), NULL);
@ -638,11 +638,11 @@ epc_get_app_filter (GDBusConnection *connection,
return NULL;
}
if (!g_variant_lookup (properties, "allow-app-installation", "b",
&allow_app_installation))
if (!g_variant_lookup (properties, "allow-system-installation", "b",
&allow_system_installation))
{
/* Default value. */
allow_app_installation = TRUE;
allow_system_installation = FALSE;
}
/* Success. Create an #EpcAppFilter object to contain the results. */
@ -653,7 +653,7 @@ epc_get_app_filter (GDBusConnection *connection,
app_filter->app_list_type =
is_whitelist ? EPC_APP_FILTER_LIST_WHITELIST : EPC_APP_FILTER_LIST_BLACKLIST;
app_filter->oars_ratings = g_steal_pointer (&oars_variant);
app_filter->allow_app_installation = allow_app_installation;
app_filter->allow_system_installation = allow_system_installation;
return g_steal_pointer (&app_filter);
}
@ -798,10 +798,10 @@ epc_set_app_filter (GDBusConnection *connection,
g_autofree gchar *object_path = NULL;
g_autoptr(GVariant) app_filter_variant = NULL;
g_autoptr(GVariant) oars_filter_variant = NULL;
g_autoptr(GVariant) allow_app_installation_variant = NULL;
g_autoptr(GVariant) allow_system_installation_variant = NULL;
g_autoptr(GVariant) app_filter_result_variant = NULL;
g_autoptr(GVariant) oars_filter_result_variant = NULL;
g_autoptr(GVariant) allow_app_installation_result_variant = NULL;
g_autoptr(GVariant) allow_system_installation_result_variant = NULL;
g_autoptr(GError) local_error = NULL;
g_return_val_if_fail (connection == NULL || G_IS_DBUS_CONNECTION (connection), FALSE);
@ -824,7 +824,7 @@ epc_set_app_filter (GDBusConnection *connection,
app_filter_variant = _epc_app_filter_build_app_filter_variant (app_filter);
oars_filter_variant = g_variant_new ("(s@a{ss})", "oars-1.1",
app_filter->oars_ratings);
allow_app_installation_variant = g_variant_new_boolean (app_filter->allow_app_installation);
allow_system_installation_variant = g_variant_new_boolean (app_filter->allow_system_installation);
app_filter_result_variant =
g_dbus_connection_call_sync (connection,
@ -872,7 +872,7 @@ epc_set_app_filter (GDBusConnection *connection,
return FALSE;
}
allow_app_installation_result_variant =
allow_system_installation_result_variant =
g_dbus_connection_call_sync (connection,
"org.freedesktop.Accounts",
object_path,
@ -880,8 +880,8 @@ epc_set_app_filter (GDBusConnection *connection,
"Set",
g_variant_new ("(ssv)",
"com.endlessm.ParentalControls.AppFilter",
"allow-app-installation",
g_steal_pointer (&allow_app_installation_variant)),
"allow-system-installation",
g_steal_pointer (&allow_system_installation_variant)),
G_VARIANT_TYPE ("()"),
allow_interactive_authorization
? G_DBUS_CALL_FLAGS_ALLOW_INTERACTIVE_AUTHORIZATION
@ -1026,7 +1026,7 @@ typedef struct
{
GPtrArray *paths_blacklist; /* (nullable) (owned) (element-type filename) */
GHashTable *oars; /* (nullable) (owned) (element-type utf8 EpcAppFilterOarsValue) */
gboolean allow_app_installation;
gboolean allow_system_installation;
/*< private >*/
gpointer padding[2];
@ -1141,7 +1141,7 @@ epc_app_filter_builder_copy (EpcAppFilterBuilder *builder)
_copy->paths_blacklist = g_ptr_array_ref (_builder->paths_blacklist);
if (_builder->oars != NULL)
_copy->oars = g_hash_table_ref (_builder->oars);
_copy->allow_app_installation = _builder->allow_app_installation;
_copy->allow_system_installation = _builder->allow_system_installation;
return g_steal_pointer (&copy);
}
@ -1225,7 +1225,7 @@ epc_app_filter_builder_end (EpcAppFilterBuilder *builder)
app_filter->app_list = (gchar **) g_ptr_array_free (g_steal_pointer (&_builder->paths_blacklist), FALSE);
app_filter->app_list_type = EPC_APP_FILTER_LIST_BLACKLIST;
app_filter->oars_ratings = g_steal_pointer (&oars_variant);
app_filter->allow_app_installation = _builder->allow_app_installation;
app_filter->allow_system_installation = _builder->allow_system_installation;
epc_app_filter_builder_clear (builder);
@ -1316,25 +1316,25 @@ epc_app_filter_builder_set_oars_value (EpcAppFilterBuilder *builder,
}
/**
* epc_app_filter_builder_set_allow_app_installation:
* epc_app_filter_builder_set_allow_system_installation:
* @builder: an initialised #EpcAppFilterBuilder
* @allow_app_installation: %TRUE to allow app installation; %FALSE to
* @allow_system_installation: %TRUE to allow app installation; %FALSE to
* unconditionally disallow it
*
* Set whether app installation is allowed in general for the user. If this is
* %TRUE, app installation is still subject to the OARS values
* Set whether the user is allowed to install to the flatpak system repository.
* If this is %TRUE, app installation is still subject to the OARS values
* (epc_app_filter_builder_set_oars_value()). If it is %FALSE, app installation
* is unconditionally disallowed for this user.
*
* Since: 0.1.0
*/
void
epc_app_filter_builder_set_allow_app_installation (EpcAppFilterBuilder *builder,
gboolean allow_app_installation)
epc_app_filter_builder_set_allow_system_installation (EpcAppFilterBuilder *builder,
gboolean allow_system_installation)
{
EpcAppFilterBuilderReal *_builder = (EpcAppFilterBuilderReal *) builder;
g_return_if_fail (_builder != NULL);
_builder->allow_app_installation = allow_app_installation;
_builder->allow_system_installation = allow_system_installation;
}

8
libeos-parental-controls/app-filter.h
View File

@ -111,7 +111,7 @@ const gchar **epc_app_filter_get_oars_sections (EpcAppFilter *filter);
EpcAppFilterOarsValue epc_app_filter_get_oars_value (EpcAppFilter *filter,
const gchar *oars_section);
gboolean epc_app_filter_is_app_installation_allowed (EpcAppFilter *filter);
gboolean epc_app_filter_is_system_installation_allowed (EpcAppFilter *filter);
EpcAppFilter *epc_get_app_filter (GDBusConnection *connection,
uid_t user_id,
@ -182,7 +182,7 @@ GType epc_app_filter_builder_get_type (void);
{ \
g_ptr_array_new_with_free_func (g_free), \
g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL), \
TRUE, \
FALSE, \
}
void epc_app_filter_builder_init (EpcAppFilterBuilder *builder);
@ -207,7 +207,7 @@ void epc_app_filter_builder_set_oars_value (EpcAppFilterBuilder *builde
const gchar *oars_section,
EpcAppFilterOarsValue value);
void epc_app_filter_builder_set_allow_app_installation (EpcAppFilterBuilder *builder,
gboolean allow_app_installation);
void epc_app_filter_builder_set_allow_system_installation (EpcAppFilterBuilder *builder,
gboolean allow_system_installation);
G_END_DECLS

12
libeos-parental-controls/tests/app-filter.c
View File

@ -125,7 +125,7 @@ test_app_filter_builder_non_empty (BuilderFixture *fixture,
EPC_APP_FILTER_OARS_VALUE_MILD);
epc_app_filter_builder_set_oars_value (fixture->builder, "language-humor",
EPC_APP_FILTER_OARS_VALUE_MODERATE);
epc_app_filter_builder_set_allow_app_installation (fixture->builder, FALSE);
epc_app_filter_builder_set_allow_system_installation (fixture->builder, FALSE);
filter = epc_app_filter_builder_end (fixture->builder);
@ -151,7 +151,7 @@ test_app_filter_builder_non_empty (BuilderFixture *fixture,
const gchar * const expected_sections[] = { "drugs-alcohol", "language-humor", NULL };
assert_strv_equal ((const gchar * const *) sections, expected_sections);
g_assert_false (epc_app_filter_is_app_installation_allowed (filter));
g_assert_false (epc_app_filter_is_system_installation_allowed (filter));
}
/* Test building an empty #EpcAppFilter using an #EpcAppFilterBuilder. */
@ -186,7 +186,7 @@ test_app_filter_builder_empty (BuilderFixture *fixture,
const gchar * const expected_sections[] = { NULL };
assert_strv_equal ((const gchar * const *) sections, expected_sections);
g_assert_true (epc_app_filter_is_app_installation_allowed (filter));
g_assert_false (epc_app_filter_is_system_installation_allowed (filter));
}
/* Check that copying a cleared #EpcAppFilterBuilder works, and the copy can
@ -208,7 +208,7 @@ test_app_filter_builder_copy_empty (void)
g_assert_true (epc_app_filter_is_path_allowed (filter, "/bin/false"));
g_assert_false (epc_app_filter_is_path_allowed (filter, "/bin/true"));
g_assert_true (epc_app_filter_is_app_installation_allowed (filter));
g_assert_false (epc_app_filter_is_system_installation_allowed (filter));
}
/* Check that copying a filled #EpcAppFilterBuilder works, and the copy can be
@ -221,13 +221,13 @@ test_app_filter_builder_copy_full (void)
g_autoptr(EpcAppFilter) filter = NULL;
epc_app_filter_builder_blacklist_path (builder, "/bin/true");
epc_app_filter_builder_set_allow_app_installation (builder, FALSE);
epc_app_filter_builder_set_allow_system_installation (builder, FALSE);
builder_copy = epc_app_filter_builder_copy (builder);
filter = epc_app_filter_builder_end (builder_copy);
g_assert_true (epc_app_filter_is_path_allowed (filter, "/bin/false"));
g_assert_false (epc_app_filter_is_path_allowed (filter, "/bin/true"));
g_assert_false (epc_app_filter_is_app_installation_allowed (filter));
g_assert_false (epc_app_filter_is_system_installation_allowed (filter));
}
int