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malcontent-client: Refactor logic to determine type of argument for check/set 

Note that this change breaks backward compatibility when handling
flatpak refs/IDs if the passed argument also resolves to a valid path,
in which case an exception will be raised.

Signed-off-by: Andre Moreira Magalhaes <andre@endlessm.com>
This commit is contained in:
Andre Moreira Magalhaes 2019-06-14 01:00:51 +00:00
parent 6c7c386ce2
commit 2846db6529
1 changed files with 51 additions and 10 deletions
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61
malcontent-client/malcontent-client.py
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@ -194,26 +194,50 @@ def command_monitor(user, quiet=False, interactive=True):
break
# Simple check to check whether @arg is a valid flatpak ref - it uses the
# same logic as 'MctAppFilter' to determine it and should be kept in sync
# with its implementation
def is_valid_flatpak_ref(arg):
parts = arg.split('/')
return (len(parts) == 4 and \
(parts[0] == 'app' or parts[0] == 'runtime') and \
parts[1] != '' and parts[2] != '' and parts[3] != '')
def command_check(user, arg, quiet=False, interactive=True):
"""Check the given path or flatpak ref is runnable by the
"""Check the given path, content type or flatpak ref is runnable by the
given user, according to their app filter."""
user_id = __lookup_user_id_or_error(user)
app_filter = __get_app_filter_or_error(user_id, interactive)
if arg.startswith('app/') and arg.count('/') < 3:
is_maybe_flatpak_id = arg.startswith('app/') and arg.count('/') < 3
is_maybe_flatpak_ref = is_valid_flatpak_ref(arg)
is_maybe_path = os.path.exists(arg)
recognised_types = sum([is_maybe_flatpak_id, is_maybe_flatpak_ref,
is_maybe_path])
if recognised_types == 0:
print('Unknown argument ‘{}’'.format(arg), file=sys.stderr)
raise SystemExit(EXIT_INVALID_OPTION)
elif recognised_types > 1:
print('Ambiguous argument ‘{}’ recognised as multiple types'.format(arg),
file=sys.stderr)
raise SystemExit(EXIT_INVALID_OPTION)
elif is_maybe_flatpak_id:
# Flatpak app ID
arg = arg[4:]
is_allowed = app_filter.is_flatpak_app_allowed(arg)
noun = 'Flatpak app ID'
elif arg.startswith('app/') or arg.startswith('runtime/'):
elif is_maybe_flatpak_ref:
# Flatpak ref
is_allowed = app_filter.is_flatpak_ref_allowed(arg)
noun = 'Flatpak ref'
else:
# File system path
arg = os.path.abspath(arg)
is_allowed = app_filter.is_path_allowed(arg)
elif is_maybe_path:
path = os.path.abspath(arg)
is_allowed = app_filter.is_path_allowed(path)
noun = 'Path'
else:
raise AssertionError('code should not be reached')
if is_allowed:
if not quiet:
@ -257,10 +281,27 @@ def command_set(user, allow_user_installation=True,
file=sys.stderr)
raise SystemExit(EXIT_INVALID_OPTION)
builder.set_oars_value(section, value)
elif arg.startswith('app/') or arg.startswith('runtime/'):
builder.blacklist_flatpak_ref(arg)
else:
builder.blacklist_path(arg)
is_maybe_flatpak_ref = is_valid_flatpak_ref(arg)
is_maybe_path = os.path.exists(arg)
recognised_types = sum([is_maybe_flatpak_ref,
is_maybe_path])
if recognised_types == 0:
print('Unknown argument ‘{}’'.format(arg), file=sys.stderr)
raise SystemExit(EXIT_INVALID_OPTION)
elif recognised_types > 1:
print('Ambiguous argument ‘{}’ recognised as multiple types'.format(arg),
file=sys.stderr)
raise SystemExit(EXIT_INVALID_OPTION)
elif is_maybe_flatpak_ref:
builder.blacklist_flatpak_ref(arg)
elif is_maybe_path:
path = os.path.abspath(arg)
builder.blacklist_path(path)
else:
raise AssertionError('code should not be reached')
app_filter = builder.end()
__set_app_filter_or_error(user_id, app_filter, interactive)