1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
%% This Source Code Form is subject to the terms of the Mozilla Public
%% License, v. 2.0. If a copy of the MPL was not distributed with this
%% file, You can obtain one at https://mozilla.org/MPL/2.0/.
%%
%% Copyright (c) 2007-2020 VMware, Inc. or its affiliates. All rights reserved.
%%
%% An HTTP API counterpart of 'rabbitmq-diagnostics check_certificate_expiration'
-module(rabbit_mgmt_wm_health_check_certificate_expiration).
-export([init/2, to_json/2, content_types_provided/2, is_authorized/2]).
-export([resource_exists/2]).
-export([variances/2]).
-include_lib("public_key/include/public_key.hrl").
-include_lib("rabbitmq_management_agent/include/rabbit_mgmt_records.hrl").
-include_lib("rabbit_common/include/rabbit.hrl").
-define(DAYS_SECONDS, 86400).
-define(WEEKS_SECONDS, ?DAYS_SECONDS * 7).
-define(MONTHS_SECONDS, ?DAYS_SECONDS * (365 / 12)).
-define(YEARS_SECONDS, ?DAYS_SECONDS * 365).
%%--------------------------------------------------------------------
init(Req, _State) ->
{cowboy_rest, rabbit_mgmt_headers:set_common_permission_headers(Req, ?MODULE), #context{}}.
variances(Req, Context) ->
{[<<"accept-encoding">>, <<"origin">>], Req, Context}.
content_types_provided(ReqData, Context) ->
{rabbit_mgmt_util:responder_map(to_json), ReqData, Context}.
resource_exists(ReqData, Context) ->
{true, ReqData, Context}.
to_json(ReqData, Context) ->
Listeners = rabbit_networking:active_listeners(),
Local = [L || #listener{node = N} = L <- Listeners, N == node()],
case convert(within(ReqData), unit(ReqData)) of
{error, Reason} ->
rabbit_mgmt_util:bad_request(iolist_to_binary(Reason), ReqData, Context);
Seconds ->
ExpiringListeners = lists:foldl(fun(L, Acc) ->
case listener_expiring_within(L, Seconds) of
false -> Acc;
Map -> [Map | Acc]
end
end, [], Local),
case ExpiringListeners of
[] ->
rabbit_mgmt_util:reply([{status, ok}], ReqData, Context);
_ ->
Msg = <<"Certificates expiring">>,
failure(Msg, ExpiringListeners, ReqData, Context)
end
end.
failure(Message, Listeners, ReqData, Context) ->
{Response, ReqData1, Context1} = rabbit_mgmt_util:reply([{status, failed},
{reason, Message},
{expired, Listeners}],
ReqData, Context),
{stop, cowboy_req:reply(503, #{}, Response, ReqData1), Context1}.
is_authorized(ReqData, Context) ->
rabbit_mgmt_util:is_authorized(ReqData, Context).
within(ReqData) ->
rabbit_mgmt_util:id(within, ReqData).
unit(ReqData) ->
rabbit_mgmt_util:id(unit, ReqData).
convert(Time, Unit) ->
try
do_convert(binary_to_integer(Time), string:lowercase(binary_to_list(Unit)))
catch
error:badarg ->
{error, "Invalid expiration value."};
invalid_unit ->
{error, "Time unit not recognised. Use: days, seconds, months, years."}
end.
do_convert(Time, "days") ->
Time * ?DAYS_SECONDS;
do_convert(Time, "weeks") ->
Time * ?WEEKS_SECONDS;
do_convert(Time, "months") ->
Time * ?MONTHS_SECONDS;
do_convert(Time, "years") ->
Time * ?YEARS_SECONDS;
do_convert(_, _) ->
throw(invalid_unit).
listener_expiring_within(#listener{node = Node, protocol = Protocol, ip_address = Interface,
port = Port, opts = Opts}, Seconds) ->
Certfile = proplists:get_value(certfile, Opts),
Cacertfile = proplists:get_value(cacertfile, Opts),
Now = calendar:datetime_to_gregorian_seconds(calendar:universal_time()),
ExpiryDate = Now + Seconds,
CertfileExpiresOn = expired(cert_validity(read_cert(Certfile)), ExpiryDate),
CacertfileExpiresOn = expired(cert_validity(read_cert(Cacertfile)), ExpiryDate),
case {CertfileExpiresOn, CacertfileExpiresOn} of
{[], []} ->
false;
_ ->
#{node => Node,
protocol => Protocol,
interface => list_to_binary(inet:ntoa(Interface)),
port => Port,
certfile => list_to_binary(Certfile),
cacertfile => list_to_binary(Cacertfile),
certfile_expires_on => expires_on_list(CertfileExpiresOn),
cacertfile_expires_on => expires_on_list(CacertfileExpiresOn)
}
end.
expires_on_list({error, Reason}) ->
{error, list_to_binary(Reason)};
expires_on_list(ExpiresOn) ->
[seconds_to_bin(S) || S <- ExpiresOn].
read_cert(undefined) ->
undefined;
read_cert({pem, Pem}) ->
Pem;
read_cert(Path) ->
case file:read_file(Path) of
{ok, Bin} ->
Bin;
Err ->
Err
end.
cert_validity(undefined) ->
undefined;
cert_validity(Cert) ->
DsaEntries = public_key:pem_decode(Cert),
case DsaEntries of
[] ->
{error, "The certificate file provided does not contain any PEM entry."};
_ ->
Now = calendar:datetime_to_gregorian_seconds(calendar:universal_time()),
lists:map(
fun({'Certificate', _, _} = DsaEntry) ->
#'Certificate'{tbsCertificate = TBSCertificate} = public_key:pem_entry_decode(DsaEntry),
#'TBSCertificate'{validity = Validity} = TBSCertificate,
#'Validity'{notAfter = NotAfter, notBefore = NotBefore} = Validity,
Start = pubkey_cert:time_str_2_gregorian_sec(NotBefore),
case Start > Now of
true ->
{error, "Certificate is not yet valid"};
false ->
pubkey_cert:time_str_2_gregorian_sec(NotAfter)
end;
({Type, _, _}) ->
{error, io_lib:format("The certificate file provided contains a ~p entry",
[Type])}
end, DsaEntries)
end.
expired(undefined, _ExpiryDate) ->
[];
expired({error, _} = Error, _ExpiryDate) ->
Error;
expired(Expires, ExpiryDate) ->
lists:filter(fun({error, _}) ->
true;
(Seconds) ->
Seconds < ExpiryDate
end, Expires).
seconds_to_bin(Seconds) ->
{{Y, M, D}, {H, Min, S}} = calendar:gregorian_seconds_to_datetime(Seconds),
list_to_binary(lists:flatten(io_lib:format("~w-~2.2.0w-~2.2.0w ~w:~2.2.0w:~2.2.0w",
[Y, M, D, H, Min, S]))).
|