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以下是被挂钩的函数中记录的数据包之一filter_packet hook。Ejabberd只打印“消息”数据包
I(<0.10945.0>:my_module:46) : in_filter_packet: {xmlelement,"message",
[{"type","headline"}],
[{xmlelement,"event",
[{"xmlns",
"http://jabber.org/protocol/pubsub#event"}],
[{xmlelement,"items",
[{"node",
"http://jabber.org/protocol/tune"}],
[{xmlelement,"item",
[{"id",
"5A487A38503FE"}],
[{xmlelement,"tune",
[{"xmlns",
"http://jabber.org/protocol/tune"}],
[]}]}]}]},
{xmlelement,"addresses",
[{"xmlns",
"http://jabber.org/protocol/address"}],
[{xmlelement,"address",
[{"type","replyto"},
{"jid",
"[email protected]/10042049171444555575238273"}],
[]}]}]}
如何筛选出只有“消息”, “类型”包?即目前挂钩功能看起来像
on_filter_packet({From, To, Packet} = Input) ->
?INFO_MSG("in_filter_packet: ~p ", [Packet]), %[gen_mod:get_module_opt(global, ?MODULE, debug, false)]),
Input.
如何写代码** if(packet.type == message)only then print **?