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authorAnders Svensson <[email protected]>2013-07-24 11:05:34 +0200
committerAnders Svensson <[email protected]>2013-07-30 17:56:53 +0200
commit8f69052ae8c27115f0cd1756e6949139759aa751 (patch)
tree9c2f02386fb75bd710f56d0c7d262d4abceb91ad /lib
parent4c4cf7d15b5179808e7e614694113e47277fd22d (diff)
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Fix UTF8String encode
To accept any nested list of codepoints and binaries. A list containing a binary was previously misinterpreted and the documentation was incomplete. Also, rework codec suite slightly to be able to specify values for which decode o encode is the identity map, for which encode should succeed, and for which encode should fail.
Diffstat (limited to 'lib')
-rw-r--r--lib/diameter/doc/src/diameter_dict.xml4
-rw-r--r--lib/diameter/src/base/diameter_types.erl18
-rw-r--r--lib/diameter/test/diameter_codec_test.erl147
3 files changed, 100 insertions, 69 deletions
diff --git a/lib/diameter/doc/src/diameter_dict.xml b/lib/diameter/doc/src/diameter_dict.xml
index 4fcde495b3..8bf4a14240 100644
--- a/lib/diameter/doc/src/diameter_dict.xml
+++ b/lib/diameter/doc/src/diameter_dict.xml
@@ -609,7 +609,9 @@ UTF8String() = [integer()]
<p>
List elements are the UTF-8 encodings of the individual characters
in the string.
-Invalid codepoints will result in encode/decode failure.</p>
+Invalid codepoints will result in encode/decode failure.
+On encode, a UTF8String() can be specified as a binary, or as a nested
+list of binaries and codepoints.</p>
<marker id="DiameterIdentity"/>
<pre>
diff --git a/lib/diameter/src/base/diameter_types.erl b/lib/diameter/src/base/diameter_types.erl
index 9ae289034c..ab7a7f3549 100644
--- a/lib/diameter/src/base/diameter_types.erl
+++ b/lib/diameter/src/base/diameter_types.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2010-2011. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -360,7 +360,7 @@ v6enc([], B) ->
'UTF8String'(M, []);
'UTF8String'(encode, S) ->
- uenc(S, []).
+ uenc(if is_binary(S) -> [S]; true -> S end, []).
udec(<<>>, Acc) ->
lists:reverse(Acc);
@@ -368,20 +368,20 @@ udec(<<>>, Acc) ->
udec(<<C/utf8, Rest/binary>>, Acc) ->
udec(Rest, [C | Acc]).
-uenc(E, Acc)
- when E == [];
- E == <<>> ->
+uenc([], Acc) ->
list_to_binary(lists:reverse(Acc));
-uenc(<<C/utf8, Rest/binary>>, Acc) ->
- uenc(Rest, [<<C/utf8>> | Acc]);
-
-uenc([[] | Rest], Acc) ->
+uenc([E | Rest], Acc)
+ when E == <<>>;
+ E == [] ->
uenc(Rest, Acc);
uenc([[H|T] | Rest], Acc) ->
uenc([H, T | Rest], Acc);
+uenc([<<C/utf8, T/binary>> | Rest], Acc) ->
+ uenc([C, T | Rest], Acc);
+
uenc([C | Rest], Acc) ->
uenc(Rest, [<<C/utf8>> | Acc]).
diff --git a/lib/diameter/test/diameter_codec_test.erl b/lib/diameter/test/diameter_codec_test.erl
index 24d4c7665e..6f1b7d0b7d 100644
--- a/lib/diameter/test/diameter_codec_test.erl
+++ b/lib/diameter/test/diameter_codec_test.erl
@@ -1,3 +1,4 @@
+%% coding: utf-8
%%
%% %CopyrightBegin%
%%
@@ -19,7 +20,9 @@
-module(diameter_codec_test).
--compile(export_all).
+-export([base/0,
+ gen/1,
+ lib/0]).
%%
%% Test encode/decode of dictionary-related modules.
@@ -38,28 +41,27 @@
%% Interface.
base() ->
- [] = run([{?MODULE, [base, T]} || T <- [zero, decode]]).
+ [] = run([[fun base/1, T] || T <- [zero, decode]]).
gen(Mod) ->
Fs = [{Mod, F, []} || F <- [name, id, vendor_id, vendor_name]],
- [] = run(Fs ++ [{?MODULE, [gen, Mod, T]} || T <- [messages,
- command_codes,
- avp_types,
- grouped,
- enum,
- import_avps,
- import_groups,
- import_enums]]).
+ [] = run(Fs ++ [[fun gen/2, Mod, T] || T <- [messages,
+ command_codes,
+ avp_types,
+ grouped,
+ enum,
+ import_avps,
+ import_groups,
+ import_enums]]).
lib() ->
- Vs = {_,_} = values('Address'),
- [] = run([[fun lib/2, N, Vs] || N <- [1,2]]).
+ Vs = {_,_,_} = values('Address'),
+ [] = run([[fun lib/2, N, Vs] || N <- [{1, true}, {3, false}]]).
%% ===========================================================================
%% Internal functions.
-lib(N, {_,_} = T) ->
- B = 1 == N rem 2,
+lib({N,B}, {_,_,_} = T) ->
[] = run([[fun lib/2, A, B] || A <- element(N,T)]);
lib(IP, B) ->
@@ -90,7 +92,7 @@ ip([_,_,_,_,_,_,_,_] = A) ->
%% ------------------------------------------------------------------------
base(T) ->
- [] = run([{?MODULE, [base, T, F]} || F <- types()]).
+ [] = run([[fun base/2, T, F] || F <- types()]).
%% Ensure that 'zero' values encode only zeros.
base(zero = T, F) ->
@@ -100,32 +102,23 @@ base(zero = T, F) ->
%% Ensure that we can decode what we encode and vice-versa, and that
%% we can't decode invalid values.
base(decode, F) ->
- {Eq, Vs, Ns} = b(values(F)),
- [] = run([{?MODULE, [base_decode, F, Eq, V]} || V <- Vs]),
- [] = run([{?MODULE, [base_invalid, F, Eq, V]} || V <- Ns]).
+ {Ts, Fs, Is} = values(F),
+ [] = run([[fun base_decode/3, F, true, V] || V <- Ts]),
+ [] = run([[fun base_decode/3, F, false, V] || V <- Fs]),
+ [] = run([[fun base_invalid/2, F, V] || V <- Is]).
base_decode(F, Eq, Value) ->
d(fun(X,V) -> diameter_types:F(X,V) end, Eq, Value).
-base_invalid(F, Eq, Value) ->
+base_invalid(F, Value) ->
try
- base_decode(F, Eq, Value),
+ base_decode(F, false, Value),
exit(nok)
catch
error: _ ->
ok
end.
-b({_,_,_} = T) ->
- T;
-b({B,Vs})
- when is_atom(B) ->
- {B,Vs,[]};
-b({Vs,Ns}) ->
- {true, Vs, Ns};
-b(Vs) ->
- {true, Vs, []}.
-
types() ->
[F || {F,2} <- diameter_types:module_info(exports)].
@@ -136,7 +129,7 @@ types() ->
%% ------------------------------------------------------------------------
gen(M, T) ->
- [] = run(lists:map(fun(X) -> {?MODULE, [gen, M, T, X]} end,
+ [] = run(lists:map(fun(X) -> [fun gen/3, M, T, X] end,
fetch(T, dict(M)))).
fetch(T, Spec) ->
@@ -197,18 +190,20 @@ gen(M, enum = T, {Name, ED})
gen(M, T, {?A(Name), lists:map(fun({E,D}) -> {?A(E), D} end, ED)});
gen(M, enum, {Name, ED}) ->
- [] = run([{?MODULE, [enum, M, Name, T]} || T <- ED]);
+ [] = run([[fun enum/3, M, Name, T] || T <- ED]);
gen(M, Tag, {_Mod, L}) ->
T = retag(Tag),
- [] = run([{?MODULE, [gen, M, T, I]} || I <- L]).
+ [] = run([[fun gen/3, M, T, I] || I <- L]).
%% avp_decode/3
avp_decode(Mod, Type, Name) ->
- {Eq, Vs, _} = b(values(Type, Name, Mod)),
- [] = run([{?MODULE, [avp_decode, Mod, Name, Type, Eq, V]}
- || V <- v(Vs)]).
+ {Ts, Fs, _} = values(Type, Name, Mod),
+ [] = run([[fun avp_decode/5, Mod, Name, Type, true, V]
+ || V <- v(Ts)]),
+ [] = run([[fun avp_decode/5, Mod, Name, Type, false, V]
+ || V <- v(Fs)]).
avp_decode(Mod, Name, Type, Eq, Value) ->
d(fun(X,V) -> avp(Mod, X, V, Name, Type) end, Eq, Value).
@@ -250,7 +245,7 @@ v(N, Ord, E, Acc) ->
arity(M, Name, Rname) ->
Rec = M:'#new-'(Rname),
- [] = run([{?MODULE, [arity, M, Name, F, Rec]}
+ [] = run([[fun arity/4, M, Name, F, Rec]
|| F <- M:'#info-'(Rname, fields)]).
arity(M, Name, AvpName, Rec) ->
@@ -299,68 +294,93 @@ z(B) ->
%% tested.)
values('OctetString' = T) ->
- {["", atom_to_list(T)], [-1, 256]};
+ {["", atom_to_list(T)],
+ [],
+ [-1, 256]};
values('Integer32') ->
Mx = (1 bsl 31) - 1,
Mn = -1*Mx,
- {[Mn, 0, random(Mn,Mx), Mx], [Mn - 1, Mx + 1]};
+ {[Mn, 0, random(Mn,Mx), Mx],
+ [],
+ [Mn - 1, Mx + 1]};
values('Integer64') ->
Mx = (1 bsl 63) - 1,
Mn = -1*Mx,
- {[Mn, 0, random(Mn,Mx), Mx], [Mn - 1, Mx + 1]};
+ {[Mn, 0, random(Mn,Mx), Mx],
+ [],
+ [Mn - 1, Mx + 1]};
values('Unsigned32') ->
M = (1 bsl 32) - 1,
- {[0, random(M), M], [-1, M + 1]};
+ {[0, random(M), M],
+ [],
+ [-1, M + 1]};
values('Unsigned64') ->
M = (1 bsl 64) - 1,
- {[0, random(M), M], [-1, M + 1]};
+ {[0, random(M), M],
+ [],
+ [-1, M + 1]};
values('Float32') ->
E = (1 bsl 8) - 2,
F = (1 bsl 23) - 1,
<<Mx:32/float>> = <<0:1, E:8, F:23>>,
<<Mn:32/float>> = <<1:1, E:8, F:23>>,
- {[0.0, infinity, '-infinity', Mx, Mn], [0]};
+ {[0.0, infinity, '-infinity', Mx, Mn],
+ [],
+ [0]};
values('Float64') ->
E = (1 bsl 11) - 2,
F = (1 bsl 52) - 1,
<<Mx:64/float>> = <<0:1, E:11, F:52>>,
<<Mn:64/float>> = <<1:1, E:11, F:52>>,
- {[0.0, infinity, '-infinity', Mx, Mn], [0]};
+ {[0.0, infinity, '-infinity', Mx, Mn],
+ [],
+ [0]};
values('Address') ->
{[{255,0,random(16#FF),1}, {65535,0,0,random(16#FFFF),0,0,0,1}],
+ [],
[{256,0,0,1}, {65536,0,0,0,0,0,0,1}]};
values('DiameterIdentity') ->
- {["x", "diameter.com"], [""]};
+ {["x", "diameter.com"],
+ [],
+ [""]};
values('DiameterURI') ->
- {false, ["aaa" ++ S ++ "://diameter.se" ++ P ++ Tr ++ Pr
- || S <- ["", "s"],
- P <- ["", ":1234"],
- Tr <- ["" | [";transport=" ++ X
- || X <- ["tcp", "sctp", "udp"]]],
- Pr <- ["" | [";protocol=" ++ X
- || X <- ["diameter","radius","tacacs+"]]]]};
+ {[],
+ ["aaa" ++ S ++ "://diameter.se" ++ P ++ Tr ++ Pr
+ || S <- ["", "s"],
+ P <- ["", ":1234"],
+ Tr <- ["" | [";transport=" ++ X
+ || X <- ["tcp", "sctp", "udp"]]],
+ Pr <- ["" | [";protocol=" ++ X
+ || X <- ["diameter","radius","tacacs+"]]]],
+ []};
values(T)
when T == 'IPFilterRule';
T == 'QoSFilterRule' ->
- ["deny in 0 from 127.0.0.1 to 10.0.0.1"];
+ {["deny in 0 from 127.0.0.1 to 10.0.0.1"],
+ [],
+ []};
%% RFC 3629 defines the UTF-8 encoding of U+0000 through U+10FFFF with the
%% exception of U+D800 through U+DFFF.
values('UTF8String') ->
+ S = "ᚠᚢᚦᚨᚱᚲ",
+ B = unicode:characters_to_binary(S),
{[[],
+ S,
lists:seq(0,16#1FF),
[0,16#D7FF,16#E000,16#10FFFF],
[random(16#D7FF), random(16#E000,16#10FFFF)]],
+ [B, [B, S, hd(S)], [S, B]],
[[-1],
[16#D800],
[16#DFFF],
@@ -372,6 +392,7 @@ values('Time') ->
{{2036,2,7},{6,28,15}},
{{2036,2,7},{6,28,16}}, %% 19000101T000000 + 2 bsl 31
{{2104,2,26},{9,42,23}}],
+ [],
[{{1968,1,20},{3,14,7}},
{{2104,2,26},{9,42,24}}]}. %% 19000101T000000 + 3 bsl 31
@@ -382,18 +403,24 @@ values('Time') ->
values('Enumerated', Name, Mod) ->
{_Name, Vals} = lists:keyfind(?S(Name), 1, types(enum, Mod)),
- lists:map(fun({_,N}) -> N end, Vals);
+ {lists:map(fun({_,N}) -> N end, Vals),
+ [],
+ []};
values('Grouped', Name, Mod) ->
Rname = Mod:name2rec(Name),
Rec = Mod:'#new-'(Rname),
Avps = Mod:'#info-'(Rname, fields),
- Enum = diameter_enum:combine(lists:map(fun({_,Vs,_}) -> to_enum(Vs) end,
+ Enum = diameter_enum:combine(lists:map(fun({Vs,_,_}) -> to_enum(Vs) end,
[values(F, Mod) || F <- Avps])),
- {false, diameter_enum:append(group(Mod, Name, Rec, Avps, Enum))};
+ {[],
+ diameter_enum:append(group(Mod, Name, Rec, Avps, Enum)),
+ []};
values(_, 'Framed-IP-Address', _) ->
- [{127,0,0,1}];
+ {[{127,0,0,1}],
+ [],
+ []};
values(Type, _, _) ->
values(Type).
@@ -407,12 +434,14 @@ to_enum(E) ->
%% values/2
values('AVP', _) ->
- {true, [#diameter_avp{code = 0, data = <<0>>}], []};
+ {[#diameter_avp{code = 0, data = <<0>>}],
+ [],
+ []};
values(Name, Mod) ->
Avps = types(avp_types, Mod),
{_Name, _Code, Type, _Flags} = lists:keyfind(?S(Name), 1, Avps),
- b(values(?A(Type), Name, Mod)).
+ values(?A(Type), Name, Mod).
%% group/5
%%