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add pattern match for topic alias 

Prior to this change, it assume that topic_alias exists defaultly
which may cause the unexpected bug

This change fix this bug above
This commit is contained in:
Gilbert Wong 2018-09-08 12:01:22 +08:00
parent c8341c85ba
commit 2d10d6971d
1 changed files with 7 additions and 1 deletions
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8
src/emqx_protocol.erl
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@ -650,9 +650,15 @@ check_publish(Packet, PState) ->
check_pub_caps(#mqtt_packet{header = #mqtt_packet_header{qos = QoS, retain = Retain},
variable = #mqtt_packet_publish{ properties = Properties}},
#pstate{zone = Zone}) ->
#{'Topic-Alias' := TopicAlias} = Properties,
emqx_mqtt_caps:check_pub(Zone, #{qos => QoS, retain => Retain});
check_pub_caps(#mqtt_packet{header = #mqtt_packet_header{qos = QoS, retain = Retain},
variable = #mqtt_packet_publish{
properties = #{'Topic-Alias' := TopicAlias}
}},
#pstate{zone = Zone}) ->
emqx_mqtt_caps:check_pub(Zone, #{qos => QoS, retain => Retain, topic_alias => TopicAlias}).
check_pub_acl(_Packet, #pstate{is_super = IsSuper, enable_acl = EnableAcl})
when IsSuper orelse (not EnableAcl) ->
ok;