/
menelaus_web_rbac.erl
2320 lines (2076 loc) · 84.5 KB
/
menelaus_web_rbac.erl
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%% @author Couchbase <info@couchbase.com>
%% @copyright 2016-Present Couchbase, Inc.
%%
%% Use of this software is governed by the Business Source License included
%% in the file licenses/BSL-Couchbase.txt. As of the Change Date specified
%% in that file, in accordance with the Business Source License, use of this
%% software will be governed by the Apache License, Version 2.0, included in
%% the file licenses/APL2.txt.
%%
%% @doc rest api's for rbac support
-module(menelaus_web_rbac).
-include("cut.hrl").
-include("ns_common.hrl").
-include("pipes.hrl").
-include("rbac.hrl").
-ifdef(TEST).
-include_lib("eunit/include/eunit.hrl").
-endif.
-export([handle_saslauthd_auth_settings/1,
handle_saslauthd_auth_settings_post/1,
handle_get_roles/1,
handle_get_users/2,
handle_get_users/3,
handle_get_user/3,
handle_whoami/1,
handle_put_user/3,
handle_delete_user/3,
handle_change_password/1,
handle_reset_admin_password/1,
handle_check_permissions_post/1,
check_permissions_url_version/1,
check_user_limits_version/0,
handle_check_permission_for_cbauth/1,
handle_get_user_limits_for_cbauth/1,
handle_get_user_uuid_for_cbauth/1,
forbidden_response/1,
role_to_string/1,
validate_cred/2,
handle_get_password_policy/1,
handle_post_password_policy/1,
assert_no_users_upgrade/0,
domain_to_atom/1,
handle_put_group/2,
handle_delete_group/2,
handle_get_groups/2,
handle_get_group/2,
assert_groups_and_ldap_enabled/0,
handle_get_profiles/1,
handle_get_profile/2,
handle_delete_profile/2,
handle_put_profile/2,
handle_lookup_ldap_user/2,
gen_password/1,
handle_get_uiroles/1
]).
-define(MIN_USERS_PAGE_SIZE, 2).
-define(MAX_USERS_PAGE_SIZE, 100).
-define(SECURITY_READ, {[admin, security, admin], read}).
-define(SECURITY_WRITE, {[admin, security, admin], write}).
-define(EXTERNAL_READ, {[admin, security, external], read}).
-define(EXTERNAL_WRITE, {[admin, security, external], write}).
-define(LOCAL_READ, {[admin, security, local], read}).
-define(LOCAL_WRITE, {[admin, security, local], write}).
assert_is_saslauthd_enabled() ->
case cluster_compat_mode:is_saslauthd_enabled() of
true ->
ok;
false ->
menelaus_util:web_exception(
400, "This http API endpoint is only supported in enterprise "
"edition running on GNU/Linux")
end.
handle_saslauthd_auth_settings(Req) ->
assert_is_saslauthd_enabled(),
menelaus_util:reply_json(Req, {saslauthd_auth:build_settings()}).
extract_user_list(undefined) ->
asterisk;
extract_user_list(String) ->
StringNoCR = [C || C <- String, C =/= $\r],
Strings = string:tokens(StringNoCR, "\n"),
[B || B <- [list_to_binary(string:trim(S)) || S <- Strings],
B =/= <<>>].
parse_validate_saslauthd_settings(Params) ->
EnabledR = case menelaus_util:parse_validate_boolean_field(
"enabled", enabled, Params) of
[] ->
[{error, enabled, <<"is missing">>}];
EnabledX -> EnabledX
end,
[AdminsParam, RoAdminsParam] =
case EnabledR of
[{ok, enabled, false}] ->
["", ""];
_ ->
[proplists:get_value(K, Params) || K <- ["admins", "roAdmins"]]
end,
Admins = extract_user_list(AdminsParam),
RoAdmins = extract_user_list(RoAdminsParam),
MaybeExtraFields =
case proplists:get_keys(Params) -- ["enabled", "roAdmins", "admins"] of
[] ->
[];
UnknownKeys ->
Msg =
io_lib:format("failed to recognize the following fields ~s",
[string:join(UnknownKeys, ", ")]),
[{error, '_', iolist_to_binary(Msg)}]
end,
MaybeTwoAsterisks =
case Admins =:= asterisk andalso RoAdmins =:= asterisk of
true ->
[{error, 'admins',
<<"at least one of admins or roAdmins needs to be given">>}];
false ->
[]
end,
Everything = EnabledR ++ MaybeExtraFields ++ MaybeTwoAsterisks,
case [{Field, Msg} || {error, Field, Msg} <- Everything] of
[] ->
[{ok, enabled, Enabled}] = EnabledR,
{ok, [{enabled, Enabled},
{admins, Admins},
{roAdmins, RoAdmins}]};
Errors ->
{errors, Errors}
end.
handle_saslauthd_auth_settings_post(Req) ->
assert_is_saslauthd_enabled(),
case parse_validate_saslauthd_settings(mochiweb_request:parse_post(Req)) of
{ok, Props} ->
PrevSettings = saslauthd_auth:build_settings(),
saslauthd_auth:set_settings(Props),
NewSettings = saslauthd_auth:build_settings(),
event_log:add_log(
saslauthd_cfg_changed,
[{old_settings, {PrevSettings}},
{new_settings, {NewSettings}}]),
ns_audit:setup_saslauthd(Req, Props),
handle_saslauthd_auth_settings(Req);
{errors, Errors} ->
menelaus_util:reply_json(Req, {Errors}, 400)
end.
jsonify_param(any) ->
<<"*">>;
jsonify_param(Value) ->
list_to_binary(strip_id(Value)).
strip_id({P, _Id}) ->
P;
strip_id(P) ->
P.
strip_ids(Params) ->
lists:map(fun strip_id/1, Params).
role_to_json(Name) when is_atom(Name) ->
[{role, Name}];
role_to_json({Name, Params}) ->
Definitions = menelaus_roles:get_definitions(public),
[{role, Name} |
[{Param, jsonify_param(Value)} ||
{Param, Value} <-
lists:zip(menelaus_roles:get_param_defs(Name, Definitions),
Params)]].
role_to_json(Role, Origins) ->
role_to_json(Role) ++
[{origins, [role_origin_to_json(O) || O <- Origins]}
|| Origins =/= []].
role_origin_to_json(user) ->
{[{type, user}]};
role_origin_to_json(O) ->
{[{type, group}, {name, list_to_binary(O)}]}.
get_roles_by_permission(Permission, Snapshot) ->
pipes:run(
menelaus_roles:produce_roles_by_permission(Permission, Snapshot),
pipes:collect()).
maybe_remove_security_roles(Req, Snapshot, Roles) ->
Roles --
case menelaus_auth:has_permission(?SECURITY_READ, Req) of
true ->
[];
false ->
menelaus_roles:get_security_roles(Snapshot)
end.
handle_get_roles(Req) ->
Snapshot = ns_bucket:get_snapshot(),
validator:handle(
fun (Values) ->
Permission = proplists:get_value(permission, Values),
Roles = maybe_remove_security_roles(
Req, Snapshot,
get_roles_by_permission(Permission, Snapshot)),
Json =
[{role_to_json(Role) ++ jsonify_props(Props)} ||
{Role, Props} <- Roles],
ns_audit:rbac_info_retrieved(Req, roles),
menelaus_util:reply_json(Req, Json)
end, Req, qs, get_users_or_roles_validators()).
jsonify_props(Props) ->
[{name, proplists:get_value(name, Props)},
{desc, proplists:get_value(desc, Props)}].
jsonify_limits(undefined) ->
[];
jsonify_limits(Limits) ->
[{limits, {[{S, {L}} || {S, L} <- Limits]}}].
user_to_json({Id, Domain}, Props) ->
user_to_json({Id, Domain}, Props, undefined).
user_to_json({Id, Domain}, Props, Limits) ->
RolesJson = user_roles_to_json(Props),
Name = proplists:get_value(name, Props),
%% UUID is only defined for local users in VERSION_NEO clusters.
UUID = proplists:get_value(uuid, Props),
Groups = proplists:get_value(groups, Props),
ExtGroups = proplists:get_value(external_groups, Props),
Passwordless = proplists:get_value(passwordless, Props),
PassChangeTime = format_password_change_time(
proplists:get_value(password_change_timestamp, Props)),
{[{id, list_to_binary(Id)},
{domain, Domain},
{roles, RolesJson}] ++
jsonify_limits(Limits) ++
[{groups, [list_to_binary(G) || G <- Groups]} || Groups =/= undefined] ++
[{external_groups, [list_to_binary(G) || G <- ExtGroups]}
|| ExtGroups =/= undefined] ++
[{name, list_to_binary(Name)} || Name =/= undefined] ++
[{uuid, UUID} || UUID =/= undefined] ++
[{passwordless, Passwordless} || Passwordless == true] ++
[{password_change_date, PassChangeTime} || PassChangeTime =/= undefined]}.
user_roles_to_json(Props) ->
UserRoles = proplists:get_value(user_roles, Props, []),
GroupRoles = proplists:get_value(group_roles, Props, []),
AddOrigin =
fun (Origin, List, AccMap) ->
lists:foldl(
fun (R, Acc) ->
maps:put(R, [Origin|maps:get(R, Acc, [])], Acc)
end, AccMap, List)
end,
Map = lists:foldl(
fun ({G, R}, Acc) ->
AddOrigin(G, R, Acc)
end, #{}, [{user, UserRoles} | GroupRoles]),
maps:fold(
fun (Role, Origins, Acc) ->
[{role_to_json(Role, Origins)}|Acc]
end, [], Map).
format_password_change_time(undefined) -> undefined;
format_password_change_time(TS) ->
Local = calendar:now_to_local_time(misc:time_to_timestamp(TS, millisecond)),
menelaus_util:format_server_time(Local).
handle_get_users(Path, Req) ->
handle_get_users_with_domain(Req, '_', Path).
get_users_or_roles_validators() ->
[validate_permission(permission, _), validator:boolean(limits, _)].
get_users_page_validators(DomainAtom, HasStartFrom) ->
[validator:integer(pageSize, ?MIN_USERS_PAGE_SIZE, ?MAX_USERS_PAGE_SIZE, _),
validator:touch(startFrom, _),
validator:one_of(sortBy, ["id", "name", "domain",
"password_change_timestamp"], _),
validator:convert(sortBy, fun list_to_atom/1, _),
validator:one_of(order, ["asc", "desc"], _),
validator:touch(substr, _),
validator:convert(order, fun list_to_atom/1, _)] ++
case HasStartFrom of
false ->
[];
true ->
case DomainAtom of
'_' ->
[validator:required(startFromDomain, _),
validator:one_of(startFromDomain, known_domains(), _),
validator:convert(startFromDomain, fun list_to_atom/1,
_)];
_ ->
[validator:prohibited(startFromDomain, _),
validator:return_value(startFromDomain, DomainAtom, _)]
end
end ++ get_users_or_roles_validators().
validate_permission(Name, State) ->
validator:validate(
fun (RawPermission) ->
case parse_permission(RawPermission) of
error ->
{error, "Malformed permission"};
Permission ->
{value, Permission}
end
end, Name, State).
handle_get_users(Path, Domain, Req) ->
case domain_to_atom(Domain) of
unknown ->
menelaus_util:reply_json(Req, <<"Unknown user domain.">>, 404);
DomainAtom ->
handle_get_users_with_domain(Req, DomainAtom, Path)
end.
get_roles_for_users_filtering(undefined) ->
all;
get_roles_for_users_filtering(Permission) ->
get_roles_by_permission(Permission, ns_bucket:get_snapshot()).
handle_get_users_with_domain(Req, DomainAtom, Path) ->
Query = mochiweb_request:parse_qs(Req),
case lists:keyfind("pageSize", 1, Query) of
false ->
validator:handle(
handle_get_all_users(Req, {'_', DomainAtom}, _), Req, Query,
get_users_or_roles_validators());
_ ->
HasStartFrom = lists:keyfind("startFrom", 1, Query) =/= false,
validator:handle(
handle_get_users_page(Req, DomainAtom, Path, _),
Req, Query, get_users_page_validators(DomainAtom, HasStartFrom))
end.
ldap_ref_filter(Req) ->
case menelaus_auth:has_permission(?EXTERNAL_READ, Req) of
true ->
pipes:filter(fun (_) -> true end);
false ->
pipes:filter(
fun ({{group, _Id}, Props}) ->
menelaus_users:is_empty_ldap_group_ref(
proplists:get_value(ldap_group_ref, Props))
end)
end.
security_filter(Req) ->
case menelaus_auth:has_permission(?SECURITY_READ, Req) of
true ->
pipes:filter(fun (_) -> true end);
false ->
SecurityRoles = get_security_roles(),
pipes:filterfold(
fun (User, Cache) ->
{Res, NewCache} = has_role(User, SecurityRoles, Cache),
{not Res, NewCache}
end, #{})
end.
get_domain_access_permission(read, Domain) ->
case Domain of
admin -> ?SECURITY_READ;
local -> ?LOCAL_READ;
external -> ?EXTERNAL_READ
end;
get_domain_access_permission(write, Domain) ->
case Domain of
admin -> ?SECURITY_WRITE;
local -> ?LOCAL_WRITE;
external -> ?EXTERNAL_WRITE
end.
domain_filter(Domain, Req) ->
Permission = get_domain_access_permission(read, Domain),
case menelaus_auth:has_permission(Permission, Req) of
true ->
pipes:filter(fun (_) -> true end);
false ->
pipes:filter(
fun ({{_, {_, D}}, _}) when D =:= Domain ->
false;
(_) ->
true
end)
end.
substr_filter(undefined, _) -> pipes:filter(fun (_) -> true end);
substr_filter(Substr, PropsToCheck) ->
LowerSubstr = string:to_lower(Substr),
CheckProps =
fun (Props) ->
lists:any(
fun (P) ->
case proplists:get_value(P, Props) of
undefined -> false;
V when is_list(V) ->
string:str(string:to_lower(V), LowerSubstr) > 0
end
end, PropsToCheck)
end,
pipes:filter(
fun ({{user, {Id, _}}, Props}) ->
(string:str(string:to_lower(Id), LowerSubstr) > 0) orelse
CheckProps(Props);
({{group, Id}, Props}) ->
(string:str(string:to_lower(Id), LowerSubstr) > 0) orelse
CheckProps(Props)
end).
handle_get_all_users(Req, Pattern, Params) ->
Roles = get_roles_for_users_filtering(
proplists:get_value(permission, Params)),
LimitsRequired = proplists:get_bool(limits, Params),
ns_audit:rbac_info_retrieved(Req, users),
pipes:run(menelaus_users:select_users(Pattern),
[filter_by_roles(Roles),
security_filter(Req),
domain_filter(local, Req),
domain_filter(external, Req),
jsonify_users(LimitsRequired),
sjson:encode_extended_json([{compact, true},
{strict, false}]),
pipes:simple_buffer(2048)],
menelaus_util:send_chunked(
Req, 200, [{"Content-Type", "application/json"}])).
handle_lookup_ldap_user(Name, Req) ->
case ldap_util:get_setting(authentication_enabled) of
true ->
case ldap_auth_cache:lookup_user(Name) of
{ok, _} ->
Identity = {Name, external},
Exists = menelaus_users:user_exists(Identity),
{JSONProps} = get_user_json(Identity),
Res = {[{recordExists, Exists} | JSONProps]},
menelaus_util:reply_json(Req, Res);
{error, Reason} ->
Msg = iolist_to_binary(ldap_auth:format_error(Reason)),
menelaus_util:reply_json(Req, Msg, 404)
end;
false ->
menelaus_util:reply_json(Req, <<"LDAP is disabled.">>, 404)
end.
handle_get_user(Domain, UserId, Req) ->
case domain_to_atom(Domain) of
unknown ->
menelaus_util:reply_json(Req, <<"Unknown user domain.">>, 404);
DomainAtom ->
Identity = {UserId, DomainAtom},
case menelaus_users:user_exists(Identity) of
false ->
menelaus_util:reply_json(Req, <<"Unknown user.">>, 404);
true ->
verify_security_roles_access(
Req, ?SECURITY_READ, menelaus_users:get_roles(Identity)),
ns_audit:rbac_info_retrieved(Req, users),
menelaus_util:reply_json(Req, get_user_json(Identity))
end
end.
filter_by_roles(all) ->
pipes:filter(fun (_) -> true end);
filter_by_roles(Roles) ->
RoleNames = [Name || {Name, _} <- Roles],
pipes:filterfold(?cut(has_role(_1, RoleNames, _2)), #{}).
has_role({_, Props}, Roles, Cache) ->
UserRoles = proplists:get_value(user_roles, Props, []) ++
proplists:get_value(roles, Props, []),
case overlap(UserRoles, Roles) of
true -> {true, Cache};
false ->
{LocalGroups, ExtGroups} =
proplists:get_value(dirty_groups, Props, {[], []}),
has_role_in_groups(LocalGroups ++ ExtGroups, Roles, Cache)
end.
has_role_in_groups([], _, Cache) -> {false, Cache};
has_role_in_groups([G|T], Roles, Cache) ->
case maps:find(G, Cache) of
{ok, true} -> {true, Cache};
{ok, false} -> has_role_in_groups(T, Roles, Cache);
error ->
GroupRoles = menelaus_users:get_group_roles(G),
case overlap(GroupRoles, Roles) of
true ->
{true, Cache#{G => true}};
false ->
has_role_in_groups(T, Roles, Cache#{G => false})
end
end.
jsonify_users(LimitsRequired) ->
?make_transducer(
begin
?yield(array_start),
pipes:foreach(
?producer(),
fun ({{user, Identity}, Props}) ->
Limits = case LimitsRequired of
true ->
menelaus_users:get_user_limits(Identity);
false ->
undefined
end,
?yield({json, user_to_json(Identity, Props, Limits)})
end),
?yield(array_end)
end).
-record(skew, {skew, size, less_fun, filter, skipped = 0}).
skew_compare(El1, El2, #skew{less_fun = LessFun}) -> LessFun(El1, El2).
add_to_skew(_El, undefined) ->
undefined;
add_to_skew(El, #skew{skew = CouchSkew,
size = Size,
filter = Filter,
less_fun = LessFun,
skipped = Skipped} = Skew) ->
case Filter(El, LessFun) of
false ->
Skew#skew{skipped = Skipped + 1};
true ->
CouchSkew1 = couch_skew:in(El, LessFun, CouchSkew),
case couch_skew:size(CouchSkew1) > Size of
true ->
{_, CouchSkew2} = couch_skew:out(LessFun, CouchSkew1),
Skew#skew{skew = CouchSkew2};
false ->
Skew#skew{skew = CouchSkew1}
end
end.
skew_to_list(#skew{skew = CouchSkew,
less_fun = LessFun}) ->
skew_to_list(CouchSkew, LessFun, []).
skew_to_list(CouchSkew, LessFun, Acc) ->
case couch_skew:size(CouchSkew) of
0 ->
Acc;
_ ->
{El, NewSkew} = couch_skew:out(LessFun, CouchSkew),
skew_to_list(NewSkew, LessFun, [El | Acc])
end.
skew_size(#skew{skew = CouchSkew}) ->
couch_skew:size(CouchSkew).
skew_out(#skew{skew = CouchSkew, less_fun = LessFun} = Skew) ->
{El, NewCouchSkew} = couch_skew:out(LessFun, CouchSkew),
{El, Skew#skew{skew = NewCouchSkew}}.
skew_min(undefined) ->
undefined;
skew_min(#skew{skew = CouchSkew}) ->
case couch_skew:size(CouchSkew) of
0 ->
undefined;
_ ->
couch_skew:min(CouchSkew)
end.
skew_skipped(#skew{skipped = Skipped}) ->
Skipped.
create_skews(Start, PageSize, SortProp, Order) ->
LessFun =
case {SortProp, Order} of
{id, asc} -> fun ({A, _}, {B, _}) -> A >= B end;
{id, desc} -> fun ({A, _}, {B, _}) -> B >= A end;
{domain, asc} ->
fun ({{N1, D1}, _}, {{N2, D2}, _}) -> {D1, N1} >= {D2, N2} end;
{domain, desc} ->
fun ({{N1, D1}, _}, {{N2, D2}, _}) -> {D2, N2} >= {D1, N1} end;
{P, O} ->
fun ({AId, AProps}, {BId, BProps}) ->
%% compare props first
%% if they are equal compare ids
A = {proplists:get_value(P, AProps), AId},
B = {proplists:get_value(P, BProps), BId},
case O of
asc -> A >= B;
desc -> B >= A
end
end
end,
SkewThis =
#skew{
skew = couch_skew:new(),
size = PageSize + 1,
less_fun = LessFun,
filter = fun (El, Less) ->
Start =:= undefined orelse Less(El, Start)
end},
SkewPrev =
case Start of
undefined ->
undefined;
_ ->
#skew{
skew = couch_skew:new(),
size = PageSize,
less_fun = fun (A, B) -> not LessFun(A, B) end,
filter = fun (El, Less) ->
Less(El, Start)
end}
end,
SkewLast =
#skew{
skew = couch_skew:new(),
size = PageSize,
less_fun = fun (A, B) -> not LessFun(A, B) end,
filter = fun (_El, _LessFun) ->
true
end},
[SkewPrev, SkewThis, SkewLast].
add_to_skews(El, Skews) ->
[add_to_skew(El, Skew) || Skew <- Skews].
build_group_links(Links, Path, Params) ->
{[{LinkName, build_pager_link(Path, StartFrom, Params)}
|| {LinkName, StartFrom} <- Links]}.
build_user_links(Links, NeedDomain, Path, Params) ->
Json = lists:map(
fun ({LinkName, noparams = UName}) ->
{LinkName, build_pager_link(Path, UName, Params)};
({LinkName, {UName, Domain}}) ->
DomainParams = [{startFromDomain, Domain} || NeedDomain],
{LinkName, build_pager_link(Path, UName,
Params ++ DomainParams)}
end, Links),
{Json}.
build_pager_link(Path, StartObj, ExtraParams) ->
PaginatorParams = format_paginator_params(StartObj),
Params = mochiweb_util:urlencode(ExtraParams ++ PaginatorParams),
iolist_to_binary(io_lib:format("/~s?~s", [Path, Params])).
format_paginator_params(noparams) -> [];
format_paginator_params(ObjName) -> [{startFrom, ObjName}].
seed_links(Pairs) ->
[{Name, Object} || {Name, Object} <- Pairs, Object =/= undefined].
page_data_from_skews([SkewPrev, SkewThis, SkewLast], PageSize) ->
{Objects, NextObj} =
case skew_size(SkewThis) of
Size when Size =:= PageSize + 1 ->
{N, NewSkew} = skew_out(SkewThis),
{skew_to_list(NewSkew), N};
_ ->
{skew_to_list(SkewThis), undefined}
end,
{First, Prev} = case skew_min(SkewPrev) of
undefined ->
{undefined, undefined};
{P, _} ->
{noparams, P}
end,
{Last, Next} =
case NextObj of
undefined ->
{undefined, undefined};
_ ->
{L, _} = LastObj = skew_min(SkewLast),
case skew_compare(LastObj, NextObj, SkewLast) of
false -> {L, element(1, NextObj)};
true -> {L, L}
end
end,
{Objects,
skew_skipped(SkewThis),
seed_links([{first, First}, {prev, Prev},
{next, Next}, {last, Last}])}.
handle_get_users_page(Req, DomainAtom, Path, Values) ->
SortAndFilteringProps = [user_roles, dirty_groups, name,
password_change_timestamp],
Start =
case proplists:get_value(startFrom, Values) of
undefined ->
undefined;
U ->
Id = {U, proplists:get_value(startFromDomain, Values)},
{Id, menelaus_users:get_user_props(Id, SortAndFilteringProps)}
end,
PageSize = proplists:get_value(pageSize, Values),
Permission = proplists:get_value(permission, Values),
Roles = get_roles_for_users_filtering(Permission),
Order = proplists:get_value(order, Values, asc),
Sort = proplists:get_value(sortBy, Values, id),
Substr = proplists:get_value(substr, Values, undefined),
LimitsRequired = proplists:get_bool(limits, Values),
{PageSkews, Total} =
pipes:run(menelaus_users:select_users({'_', DomainAtom},
SortAndFilteringProps),
[filter_by_roles(Roles),
security_filter(Req),
domain_filter(local, Req),
domain_filter(external, Req),
substr_filter(Substr, [name])],
?make_consumer(
pipes:fold(
?producer(),
fun ({{user, Identity}, Props}, {Skews, T}) ->
{add_to_skews({Identity, Props}, Skews), T + 1}
end, {create_skews(Start, PageSize, Sort, Order), 0}))),
UserJson = fun ({Identity, _}) ->
Props = menelaus_users:get_user_props(Identity),
Limits = case LimitsRequired of
true ->
menelaus_users:get_user_limits(
Identity);
false ->
undefined
end,
user_to_json(Identity, Props, Limits)
end,
{Users, Skipped, Links} = page_data_from_skews(PageSkews, PageSize),
UsersJson = [UserJson(O) || O <- Users],
LinksParams = [{permission, format_permission(Permission)}
|| Permission =/= undefined] ++
[{substr, Substr} || Substr =/= undefined] ++
[{pageSize, PageSize},
{sortBy, Sort},
{order, Order}],
LinksJson = build_user_links(Links, DomainAtom == '_', Path, LinksParams),
Json = {[{total, Total},
{links, LinksJson},
{skipped, Skipped},
{users, UsersJson}]},
ns_audit:rbac_info_retrieved(Req, users),
menelaus_util:reply_json(Req, Json).
handle_whoami(Req) ->
Identity = menelaus_auth:get_identity(Req),
Props = menelaus_users:get_user_props(Identity,
[name, passwordless,
password_change_timestamp]),
{JSON} = user_to_json(Identity, Props),
Roles = menelaus_roles:get_roles(Identity),
RolesJSON = [{roles, [{role_to_json(R)} || R <- Roles]}],
menelaus_util:reply_json(Req, {misc:update_proplist(JSON, RolesJSON)}).
get_user_json(Identity) ->
Limits = menelaus_users:get_user_limits(Identity),
user_to_json(Identity, menelaus_users:get_user_props(Identity), Limits).
parse_until(Str, Delimeters) ->
lists:splitwith(fun (Char) ->
not lists:member(Char, Delimeters)
end, Str).
role_to_atom(Role) ->
list_to_existing_atom(string:to_lower(Role)).
get_num_params(Role, Definitions) ->
case menelaus_roles:get_param_defs(Role, Definitions) of
not_found ->
not_found;
Defs ->
length(Defs)
end.
adjust_role(Role, Params, Definitions) ->
RoleAtom = role_to_atom(Role),
AdjustedParams =
case get_num_params(RoleAtom, Definitions) of
I when is_integer(I),
I >= length(Params) ->
misc:align_list(Params, I, any);
_ ->
%% this will be handled later
%% in validate_roles
Params
end,
{RoleAtom, AdjustedParams}.
parse_role(RoleRaw, Definitions) ->
try
case parse_until(RoleRaw, "[") of
{Role, []} ->
role_to_atom(Role);
{Role, "[*]"} ->
adjust_role(Role, [any], Definitions);
{Role, [$[ | ParamAndBracket]} ->
case parse_until(ParamAndBracket, "]") of
{Param, "]"} when Param =/= [] ->
adjust_role(Role, string:split(Param, ":", all),
Definitions);
_ ->
{error, RoleRaw}
end
end
catch error:badarg ->
{error, RoleRaw}
end.
parse_roles(undefined) ->
[];
parse_roles(RolesStr) ->
Definitions = menelaus_roles:get_definitions(public),
RolesRaw = string:tokens(RolesStr, ","),
[parse_role(string:trim(RoleRaw), Definitions) || RoleRaw <- RolesRaw].
params_to_string([any]) ->
"*";
params_to_string([any | Rest]) ->
params_to_string(Rest);
params_to_string(Params) ->
lists:flatten(lists:join(":", strip_ids(lists:reverse(Params)))).
role_to_string(Role) when is_atom(Role) ->
atom_to_list(Role);
role_to_string({Role, Params}) ->
lists:flatten(io_lib:format(
"~p[~s]",
[Role, params_to_string(lists:reverse(Params))])).
known_domains() ->
["local", "external"].
domain_to_atom(Domain) ->
case lists:member(Domain, known_domains()) of
true ->
list_to_atom(Domain);
false ->
unknown
end.
verify_length([P, Len]) ->
length(P) >= Len.
verify_control_chars(P) ->
lists:all(
fun (C) ->
C > 31 andalso C =/= 127
end, P).
verify_utf8(P) ->
couch_util:validate_utf8(P).
verify_lowercase(P) ->
string:to_upper(P) =/= P.
verify_uppercase(P) ->
string:to_lower(P) =/= P.
verify_digits(P) ->
lists:any(
fun (C) ->
C > 47 andalso C < 58
end, P).
password_special_characters() ->
"@%+\\/'\"!#$^?:,(){}[]~`-_".
verify_special(P) ->
lists:any(
fun (C) ->
lists:member(C, password_special_characters())
end, P).
get_verifier(uppercase, P) ->
{fun verify_uppercase/1, P,
<<"The password must contain at least one uppercase letter">>};
get_verifier(lowercase, P) ->
{fun verify_lowercase/1, P,
<<"The password must contain at least one lowercase letter">>};
get_verifier(digits, P) ->
{fun verify_digits/1, P,
<<"The password must contain at least one digit">>};
get_verifier(special, P) ->
{fun verify_special/1, P,
list_to_binary(
"The password must contain at least one of the following characters: " ++
password_special_characters())}.
execute_verifiers([]) ->
true;
execute_verifiers([{Fun, Arg, Error} | Rest]) ->
case Fun(Arg) of
true ->
execute_verifiers(Rest);
false ->
Error
end.
get_password_policy() ->
{value, Policy} = ns_config:search(password_policy),
MinLength = proplists:get_value(min_length, Policy),
true = (MinLength =/= undefined),
MustPresent = proplists:get_value(must_present, Policy),
true = (MustPresent =/= undefined),
{MinLength, MustPresent}.
validate_cred(undefined, _) -> <<"Field must be given">>;
validate_cred(P, password) ->
is_valid_password(P, get_password_policy());
validate_cred(Username, username) ->
validate_id(Username, <<"Username">>).
validate_id([], Fieldname) ->
<<Fieldname/binary, " must not be empty">>;
validate_id(Id, Fieldname) when length(Id) > 128 ->
<<Fieldname/binary, " may not exceed 128 characters">>;
validate_id("@" ++ _, Fieldname) ->
<<Fieldname/binary, " cannot start with '@'">>;
validate_id(Id, Fieldname) ->
V = lists:all(
fun (C) ->
C > 32 andalso C =/= 127 andalso
not lists:member(C, "()<>,;:\\\"/[]?={}")
end, Id)
andalso couch_util:validate_utf8(Id),
V orelse
<<Fieldname/binary, " must not contain spaces, control or any of "
"()<>,;:\\\"/[]?={} characters and must be valid utf8">>.
is_valid_password(P, {MinLength, MustPresent}) ->
LengthError = io_lib:format(
"The password must be at least ~p characters long.",
[MinLength]),
Verifiers =
[{fun verify_length/1, [P, MinLength], list_to_binary(LengthError)},
{fun verify_utf8/1, P, <<"The password must be valid utf8">>},
{fun verify_control_chars/1, P,
<<"The password must not contain control characters">>}] ++
[get_verifier(V, P) || V <- MustPresent],
execute_verifiers(Verifiers).
handle_put_user(Domain, UserId, Req) ->
assert_no_users_upgrade(),
case validate_cred(UserId, username) of
true ->
case domain_to_atom(Domain) of
unknown ->
menelaus_util:reply_json(Req, <<"Unknown user domain.">>,
404);
external = T ->
menelaus_util:assert_is_enterprise(),
handle_put_user_with_identity({UserId, T}, Req);
local = T ->
handle_put_user_with_identity({UserId, T}, Req)
end;
Error ->
menelaus_util:reply_global_error(Req, Error)
end.
validate_password(State) ->
validator:validate(
fun (P) ->
case validate_cred(P, password) of
true ->
ok;
Error ->
{error, Error}
end
end, password, State).
put_user_validators(Domain) ->
[validator:touch(name, _),
validate_user_groups(groups, _),
validate_roles(roles, _)] ++
case Domain of
local ->
[validate_password(_),
validate_limits(_)];
external ->
[]