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authorErlang/OTP <[email protected]>2015-05-06 10:46:15 +0200
committerErlang/OTP <[email protected]>2015-05-06 10:46:15 +0200
commit9ae8c00c7e3288cd53804b1d0ff10a0825d85297 (patch)
tree86a367befbc20b6f03fbf1067ca98d854a70f7b1 /lib
parent6cc8c67c157468566efc869df2c27f8f9c24f38d (diff)
parent1baa54479df7224985b0889562ecd5701b0805bc (diff)
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Merge branch 'dgud/common_test/netconf/OTP-12698' into maint-17
* dgud/common_test/netconf/OTP-12698: common_test: Recurse when there is more data in netconf
Diffstat (limited to 'lib')
-rw-r--r--lib/common_test/src/ct_netconfc.erl120
-rw-r--r--lib/common_test/test/ct_netconfc_SUITE_data/netconfc1_SUITE.erl17
2 files changed, 57 insertions, 80 deletions
diff --git a/lib/common_test/src/ct_netconfc.erl b/lib/common_test/src/ct_netconfc.erl
index 85fb1ea8d2..8650bef89c 100644
--- a/lib/common_test/src/ct_netconfc.erl
+++ b/lib/common_test/src/ct_netconfc.erl
@@ -1118,7 +1118,9 @@ handle_msg({Ref,timeout},#state{pending=Pending} = State) ->
close_session -> stop;
_ -> noreply
end,
- {R,State#state{pending=Pending1}}.
+ %% Halfhearted try to get in correct state, this matches
+ %% the implementation before this patch
+ {R,State#state{pending=Pending1, buff= <<>>}}.
%% @private
%% Called by ct_util_server to close registered connections before terminate.
@@ -1308,72 +1310,54 @@ to_xml_doc(Simple) ->
%%%-----------------------------------------------------------------
%%% Parse and handle received XML data
-handle_data(NewData,#state{connection=Connection,buff=Buff} = State) ->
+handle_data(NewData,#state{connection=Connection,buff=Buff0} = State0) ->
log(Connection,recv,NewData),
- Data = <<Buff/binary,NewData/binary>>,
- case xmerl_sax_parser:stream(<<>>,
- [{continuation_fun,fun sax_cont/1},
- {continuation_state,{Data,Connection,false}},
- {event_fun,fun sax_event/3},
- {event_state,[]}]) of
- {ok, Simple, Rest} ->
- decode(Simple,State#state{buff=Rest});
- {fatal_error,_Loc,Reason,_EndTags,_EventState} ->
- ?error(Connection#connection.name,[{parse_error,Reason},
- {buffer,Buff},
- {new_data,NewData}]),
- case Reason of
- {could_not_fetch_data,Msg} ->
- handle_msg(Msg,State#state{buff = <<>>});
- _Other ->
- Pending1 =
- case State#state.pending of
- [] ->
- [];
- Pending ->
- %% Assuming the first request gets the
- %% first answer
- P=#pending{tref=TRef,caller=Caller} =
- lists:last(Pending),
- _ = timer:cancel(TRef),
- Reason1 = {failed_to_parse_received_data,Reason},
- ct_gen_conn:return(Caller,{error,Reason1}),
- lists:delete(P,Pending)
- end,
- {noreply,State#state{pending=Pending1,buff = <<>>}}
- end
- end.
-
-%%%-----------------------------------------------------------------
-%%% Parsing of XML data
-%% Contiuation function for the sax parser
-sax_cont(done) ->
- {<<>>,done};
-sax_cont({Data,Connection,false}) ->
+ Data = append_wo_initial_nl(Buff0,NewData),
case binary:split(Data,[?END_TAG],[]) of
- [All] ->
- %% No end tag found. Remove what could be a part
- %% of an end tag from the data and save for next
- %% iteration
- SafeSize = size(All)-5,
- <<New:SafeSize/binary,Save:5/binary>> = All,
- {New,{Save,Connection,true}};
- [_Msg,_Rest]=Msgs ->
- %% We have at least one full message. Any excess data will
- %% be returned from xmerl_sax_parser:stream/2 in the Rest
- %% parameter.
- {list_to_binary(Msgs),done}
- end;
-sax_cont({Data,Connection,true}) ->
- case ssh_receive_data() of
- {ok,Bin} ->
- log(Connection,recv,Bin),
- sax_cont({<<Data/binary,Bin/binary>>,Connection,false});
- {error,Reason} ->
- throw({could_not_fetch_data,Reason})
+ [_NoEndTagFound] ->
+ {noreply, State0#state{buff=Data}};
+ [FirstMsg,Buff1] ->
+ SaxArgs = [{event_fun,fun sax_event/3}, {event_state,[]}],
+ case xmerl_sax_parser:stream(FirstMsg, SaxArgs) of
+ {ok, Simple, _Thrash} ->
+ case decode(Simple, State0#state{buff=Buff1}) of
+ {noreply, #state{buff=Buff} = State} when Buff =/= <<>> ->
+ %% Recurse if we have more data in buffer
+ handle_data(<<>>, State);
+ Other ->
+ Other
+ end;
+ {fatal_error,_Loc,Reason,_EndTags,_EventState} ->
+ ?error(Connection#connection.name,
+ [{parse_error,Reason},
+ {buffer, Buff0},
+ {new_data,NewData}]),
+ handle_error(Reason, State0#state{buff= <<>>})
+ end
end.
-
+%% xml does not accept a leading nl and some netconf server add a nl after
+%% each ?END_TAG, ignore them
+append_wo_initial_nl(<<>>,NewData) -> NewData;
+append_wo_initial_nl(<<"\n", Data/binary>>, NewData) ->
+ append_wo_initial_nl(Data, NewData);
+append_wo_initial_nl(Data, NewData) ->
+ <<Data/binary, NewData/binary>>.
+
+handle_error(Reason, State) ->
+ Pending1 = case State#state.pending of
+ [] -> [];
+ Pending ->
+ %% Assuming the first request gets the
+ %% first answer
+ P=#pending{tref=TRef,caller=Caller} =
+ lists:last(Pending),
+ _ = timer:cancel(TRef),
+ Reason1 = {failed_to_parse_received_data,Reason},
+ ct_gen_conn:return(Caller,{error,Reason1}),
+ lists:delete(P,Pending)
+ end,
+ {noreply, State#state{pending=Pending1}}.
%% Event function for the sax parser. It builds a simple XML structure.
%% Care is taken to keep namespace attributes and prefixes as in the original XML.
@@ -1836,16 +1820,6 @@ get_tag([]) ->
%%%-----------------------------------------------------------------
%%% SSH stuff
-ssh_receive_data() ->
- receive
- {ssh_cm, CM, {data, Ch, _Type, Data}} ->
- ssh_connection:adjust_window(CM,Ch,size(Data)),
- {ok, Data};
- {ssh_cm, _CM, {Closed, _Ch}} = X when Closed == closed; Closed == eof ->
- {error,X};
- {_Ref,timeout} = X ->
- {error,X}
- end.
ssh_open(#options{host=Host,timeout=Timeout,port=Port,ssh=SshOpts,name=Name}) ->
case ssh:connect(Host, Port,
diff --git a/lib/common_test/test/ct_netconfc_SUITE_data/netconfc1_SUITE.erl b/lib/common_test/test/ct_netconfc_SUITE_data/netconfc1_SUITE.erl
index a145d85b1d..099deeb980 100644
--- a/lib/common_test/test/ct_netconfc_SUITE_data/netconfc1_SUITE.erl
+++ b/lib/common_test/test/ct_netconfc_SUITE_data/netconfc1_SUITE.erl
@@ -490,13 +490,16 @@ action(Config) ->
Data = [{myactionreturn,[{xmlns,"myns"}],["value"]}],
%% test either to receive {data,Data} or {ok,Data},
%% both need to be handled
- {Reply,RetVal} = case element(3, now()) rem 2 of
- 0 -> {{data,Data},{ok,Data}};
- 1 -> {{ok,Data},ok}
- end,
- ct:log("Client will receive {~w,Data}", [element(1,Reply)]),
- ?NS:expect_reply(action,Reply),
- RetVal = ct_netconfc:action(Client,{myaction,[{xmlns,"myns"}],[]}),
+ ct:log("Client will receive {~w,~p}", [data,Data]),
+ ct:log("Expecting ~p", [{ok, Data}]),
+ ?NS:expect_reply(action,{data, Data}),
+ {ok, Data} = ct_netconfc:action(Client,{myaction,[{xmlns,"myns"}],[]}),
+
+ ct:log("Client will receive {~w,~p}", [ok,Data]),
+ ct:log("Expecting ~p", [ok]),
+ ?NS:expect_reply(action,{ok, Data}),
+ ok = ct_netconfc:action(Client,{myaction,[{xmlns,"myns"}],[]}),
+
?NS:expect_do_reply('close-session',close,ok),
?ok = ct_netconfc:close_session(Client),
ok.