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Merge pull request #202 from matrix-org/erikj/power_level_sanity
Change power level semantics.
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commit
a2ed7f437c
@ -187,6 +187,9 @@ class Auth(object):
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join_rule = JoinRules.INVITE
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user_level = self._get_user_power_level(event.user_id, auth_events)
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target_level = self._get_user_power_level(
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target_user_id, auth_events
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)
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# FIXME (erikj): What should we do here as the default?
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ban_level = self._get_named_level(auth_events, "ban", 50)
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@ -258,12 +261,12 @@ class Auth(object):
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elif target_user_id != event.user_id:
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kick_level = self._get_named_level(auth_events, "kick", 50)
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if user_level < kick_level:
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if user_level < kick_level or user_level <= target_level:
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raise AuthError(
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403, "You cannot kick user %s." % target_user_id
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)
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elif Membership.BAN == membership:
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if user_level < ban_level:
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if user_level < ban_level or user_level <= target_level:
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raise AuthError(403, "You don't have permission to ban")
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else:
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raise AuthError(500, "Unknown membership %s" % membership)
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@ -573,26 +576,26 @@ class Auth(object):
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# Check other levels:
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levels_to_check = [
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("users_default", []),
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("events_default", []),
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("state_default", []),
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("ban", []),
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("redact", []),
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("kick", []),
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("invite", []),
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("users_default", None),
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("events_default", None),
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("state_default", None),
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("ban", None),
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("redact", None),
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("kick", None),
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("invite", None),
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]
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old_list = current_state.content.get("users")
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for user in set(old_list.keys() + user_list.keys()):
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levels_to_check.append(
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(user, ["users"])
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(user, "users")
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)
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old_list = current_state.content.get("events")
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new_list = event.content.get("events")
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for ev_id in set(old_list.keys() + new_list.keys()):
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levels_to_check.append(
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(ev_id, ["events"])
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(ev_id, "events")
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)
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old_state = current_state.content
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@ -600,12 +603,10 @@ class Auth(object):
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for level_to_check, dir in levels_to_check:
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old_loc = old_state
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for d in dir:
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old_loc = old_loc.get(d, {})
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new_loc = new_state
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for d in dir:
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new_loc = new_loc.get(d, {})
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if dir:
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old_loc = old_loc.get(dir, {})
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new_loc = new_loc.get(dir, {})
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if level_to_check in old_loc:
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old_level = int(old_loc[level_to_check])
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@ -621,6 +622,14 @@ class Auth(object):
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if new_level == old_level:
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continue
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if dir == "users" and level_to_check != event.user_id:
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if old_level == user_level:
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raise AuthError(
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403,
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"You don't have permission to remove ops level equal "
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"to your own"
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)
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if old_level > user_level or new_level > user_level:
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raise AuthError(
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403,
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