./ct_report/coverage/mam_message.COVER.html

1 %%% @doc Encoder and decoder for MAM messages
2 %%%
3 %%% Default implementations are:
4 %%% - mam_message_xml
5 %%% - mam_message_eterm
6 %%% - mam_message_compressed_eterm
7 -module(mam_message).
8
9 -ignore_xref([behaviour_info/1]).
10
11 -callback encode(exml:element()) -> binary().
12 -callback decode(binary()) -> exml:element().
13
14 -export([encode/2, decode/2]).
15
16 -include_lib("kernel/include/logger.hrl").
17 -include_lib("exml/include/exml.hrl").
18
19 -spec encode(module(), exml:element()) -> binary().
20 10299 encode(Mod, Packet) -> Mod:encode(Packet).
21
22 -spec decode(module(), binary()) -> exml:element().
23 decode(Mod, Bin) ->
24 5061 try
25 5061 Mod:decode(Bin)
26 catch Class:Reason:Stacktrace ->
27 21 ?LOG_ERROR(#{what => mam_failed_to_decode_message,
28 encoded_message => Bin,
29
:-(
class => Class, reason => Reason, stacktrace => Stacktrace}),
30 21 error_stanza()
31 end.
32
33 error_stanza() ->
34 21 Text = <<"Failed to decode message in database">>,
35 21 Err = mongoose_xmpp_errors:internal_server_error(<<"en">>, Text),
36 21 Body = #xmlel{name = <<"body">>, children = [#xmlcdata{content = Text}]},
37 21 #xmlel{name = <<"message">>,
38 attrs = [{<<"type">>, <<"error">>}],
39 children = [Err, Body]}.
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