Browse Source

fix(exhook): fix obsolete SSL files aren't deleted after the Exhook config update

firest 3 years ago
parent
commit
f9bc700498

+ 1 - 0
apps/emqx_exhook/.gitignore

@@ -19,6 +19,7 @@ rebar3.crashdump
 *~
 rebar.lock
 data/
+!test/data/
 *.conf.rendered
 *.pyc
 .DS_Store

+ 35 - 2
apps/emqx_exhook/src/emqx_exhook_mgr.erl

@@ -183,8 +183,10 @@ pre_config_update(_, {enable, Name, Enable}, OldConf) ->
         NewConf -> {ok, lists:map(fun maybe_write_certs/1, NewConf)}
     end.
 
-post_config_update(_KeyPath, UpdateReq, NewConf, _OldConf, _AppEnvs) ->
-    {ok, call({update_config, UpdateReq, NewConf})}.
+post_config_update(_KeyPath, UpdateReq, NewConf, OldConf, _AppEnvs) ->
+    Result = call({update_config, UpdateReq, NewConf}),
+    try_clear_ssl_files(UpdateReq, NewConf, OldConf),
+    {ok, Result}.
 
 %%=====================================================================
 
@@ -600,3 +602,34 @@ new_ssl_source(Source, undefined) ->
     Source;
 new_ssl_source(Source, SSL) ->
     Source#{<<"ssl">> => SSL}.
+
+try_clear_ssl_files({delete, Name}, _NewConf, OldConfs) ->
+    OldSSL = find_server_ssl_cfg(Name, OldConfs),
+    emqx_tls_lib:delete_ssl_files(ssl_file_path(Name), undefined, OldSSL);
+try_clear_ssl_files({Op, Name, _}, NewConfs, OldConfs) when
+    Op =:= update; Op =:= enable
+->
+    NewSSL = find_server_ssl_cfg(Name, NewConfs),
+    OldSSL = find_server_ssl_cfg(Name, OldConfs),
+    emqx_tls_lib:delete_ssl_files(ssl_file_path(Name), NewSSL, OldSSL);
+try_clear_ssl_files(_Req, _NewConf, _OldConf) ->
+    ok.
+
+search_server_cfg(Name, Confs) ->
+    lists:search(
+        fun
+            (#{name := SvrName}) when SvrName =:= Name ->
+                true;
+            (_) ->
+                false
+        end,
+        Confs
+    ).
+
+find_server_ssl_cfg(Name, Confs) ->
+    case search_server_cfg(Name, Confs) of
+        {value, Value} ->
+            maps:get(ssl, Value, undefined);
+        false ->
+            undefined
+    end.

+ 29 - 0
apps/emqx_exhook/test/data/certs/cafile

@@ -0,0 +1,29 @@
+-----BEGIN CERTIFICATE-----
+MIIE5DCCAswCCQCF3o0gIdaNDjANBgkqhkiG9w0BAQsFADA0MRIwEAYDVQQKDAlF
+TVFYIFRlc3QxHjAcBgNVBAMMFUNlcnRpZmljYXRlIEF1dGhvcml0eTAeFw0yMTEy
+MzAwODQxMTFaFw00OTA1MTcwODQxMTFaMDQxEjAQBgNVBAoMCUVNUVggVGVzdDEe
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+kRkRjfTfR0Ykxpks7Mjvsb6NcZENf08ZFPd45+e/ptsxpiKu4e4W4bV7NZDvNKf9
+0/aD3oGYNMiP7s+KJ1lRSAjnBuG21Yk8FpzG+yr8wvJhV8aFgNQ5wIH86SuUTmN0
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+T+fp6tNL6LE=
+-----END CERTIFICATE-----

+ 24 - 0
apps/emqx_exhook/test/data/certs/certfile

@@ -0,0 +1,24 @@
+-----BEGIN CERTIFICATE-----
+MIID/jCCAeagAwIBAgIJAKTICmq1Lg6dMA0GCSqGSIb3DQEBCwUAMDQxEjAQBgNV
+BAoMCUVNUVggVGVzdDEeMBwGA1UEAwwVQ2VydGlmaWNhdGUgQXV0aG9yaXR5MB4X
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+e6+eIMYFszB+5gKgt6pa6ZNI
+-----END CERTIFICATE-----

+ 27 - 0
apps/emqx_exhook/test/data/certs/keyfile

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEpAIBAAKCAQEA867o38el2Ux9DFqizupDQHh53VGfjhmlEV78SjDzBeXQONJc
+TRunBM85atEZutWnZb/LReJESa7OhJ0YxFaDCJq3YdO7xhXTk2Kj9NS44gYRKwM8
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+blPu56OzNI2VMrR1GbOBLxQINLTIpaacjNJAlr8XOlegdUJsW/Jwqw==
+-----END RSA PRIVATE KEY-----

+ 27 - 0
apps/emqx_exhook/test/data/certs/keyfile2

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEpAIBAAKCAQEAzLiGiSwpxkENtjrzS7pNLblTnWe4HUUFwYyUX0H+3TnvA86X
+EX85yZvFjkzB6lLjUkMY+C6UTVXt+mxeSJbUtSKZhX+2yoF/KYh7SaVjug5FqEqO
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+asClqpnHT8/VJYTD7Kqj0fouTTZf0zkig/y+2XERppd8k+pSKjUCPQ==
+-----END RSA PRIVATE KEY-----

+ 66 - 0
apps/emqx_exhook/test/emqx_exhook_SUITE.erl

@@ -348,6 +348,55 @@ t_stop_timeout(_) ->
     snabbkaffe:stop(),
     meck:unload(emqx_exhook_demo_svr).
 
+t_ssl_clear(_) ->
+    SvrName = <<"ssl_test">>,
+    SSLConf = #{
+        <<"cacertfile">> => cert_file("cafile"),
+
+        <<"certfile">> => cert_file("certfile"),
+
+        <<"enable">> => true,
+        <<"keyfile">> => cert_file("keyfile"),
+
+        <<"verify">> => <<"verify_peer">>
+    },
+    AddConf = #{
+        <<"auto_reconnect">> => <<"60s">>,
+        <<"enable">> => false,
+        <<"failed_action">> => <<"deny">>,
+        <<"name">> => <<"ssl_test">>,
+        <<"pool_size">> => 16,
+        <<"request_timeout">> => <<"5s">>,
+        <<"ssl">> => SSLConf,
+
+        <<"url">> => <<"http://127.0.0.1:9000">>
+    },
+    emqx_exhook_mgr:update_config([exhook, servers], {add, AddConf}),
+    ListResult1 = list_pem_dir(SvrName),
+    ?assertMatch({ok, [_, _, _]}, ListResult1),
+    {ok, ResultList1} = ListResult1,
+
+    UpdateConf = AddConf#{<<"ssl">> => SSLConf#{<<"keyfile">> => cert_file("keyfile2")}},
+    emqx_exhook_mgr:update_config([exhook, servers], {update, SvrName, UpdateConf}),
+    ListResult2 = list_pem_dir(SvrName),
+    ?assertMatch({ok, [_, _, _]}, ListResult2),
+    {ok, ResultList2} = ListResult2,
+
+    FindKeyFile = fun(List) ->
+        case lists:search(fun(E) -> lists:prefix("key", E) end, List) of
+            {value, Value} ->
+                Value;
+            _ ->
+                ?assert(false, "Can't find keyfile")
+        end
+    end,
+
+    ?assertNotEqual(FindKeyFile(ResultList1), FindKeyFile(ResultList2)),
+
+    emqx_exhook_mgr:update_config([exhook, servers], {delete, SvrName}),
+    ?assertMatch({error, not_dir}, list_pem_dir(SvrName)),
+    ok.
+
 %%--------------------------------------------------------------------
 %% Cases Helpers
 %%--------------------------------------------------------------------
@@ -414,3 +463,20 @@ loaded_exhook_hookpoints() ->
 is_exhook_callback(Cb) ->
     Action = element(2, Cb),
     emqx_exhook_handler == element(1, Action).
+
+list_pem_dir(Name) ->
+    Dir = filename:join([emqx:mutable_certs_dir(), "exhook", Name]),
+    case filelib:is_dir(Dir) of
+        true ->
+            file:list_dir(Dir);
+        _ ->
+            {error, not_dir}
+    end.
+
+data_file(Name) ->
+    Dir = code:lib_dir(emqx_exhook, test),
+    {ok, Bin} = file:read_file(filename:join([Dir, "data", Name])),
+    Bin.
+
+cert_file(Name) ->
+    data_file(filename:join(["certs", Name])).