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License: BSD 2-Clause "Simplified" License
Erlang Action Message Format Library
License: BSD 2-Clause "Simplified" License
I tried to use amf3:decode
to decode AMF content which I have captured in a file named /tmp/tsung_recorder20130311-1025-10.bin
. However, it seems to me that the result is not decoded.
Below is what I captured from my erl shell.
juacompe@horus:~/projects/herffjones/erlang-amf/src$ erl
Erlang R16B (erts-5.10.1) [source] [64-bit] [smp:4:4] [async-threads:10] [hipe] [kernel-poll:false]
Eshell V5.10.1 (abort with ^G)
1> c(amf3).
{ok,amf3}
2> {ok, Content} = file:read_file("/tmp/tsung_recorder20130311-1025-10.bin").
{ok,<<0,3,0,0,0,1,0,4,110,117,108,108,0,3,47,49,51,0,0,1,
242,10,0,0,0,1,17,...>>}
3> {_, Rest} = amf3:decode(Content).
{undefined,<<3,0,0,0,1,0,4,110,117,108,108,0,3,47,49,51,
0,0,1,242,10,0,0,0,1,17,10,...>>}
4> io:format("~s", [Rest]).
^C^@^@^@^A^@^Dnull^@^C/13^@^@^Aò
^@^@^@^A^Q
source^Soperation^UtimeToLive body^QclientId^Oheaders^SmessageId^Stimestamp^Wdestination^A^F^Operform^D^@ ^C^A
loaded^F^Y59D88D9A318A^F-retrieveFinePaperItems^FOproductGlobalValueInitializationService ^A^A^B^B^FIC85A1B2C-7D09-9B2B-B1D2-DC011356C968
^K^A^UDSEndpoint^A DSId^FIC85A1717-9118-81F4-D237-5DAB430FE859^A^FI6017787D-86CB-859D-B834-59D8D75F2280^D^@^F�blazeEndpointok
5>
I also tried similar approach in Python
using pyamf
library.
juacompe@horus:~/projects/herffjones/tsung_recorder/tsung_recorder20130311-1025$ ipython
Python 2.7.3 (default, Aug 1 2012, 05:14:39)
Type "copyright", "credits" or "license" for more information.
IPython 0.13.2 -- An enhanced Interactive Python.
? -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help -> Python's own help system.
object? -> Details about 'object', use 'object??' for extra details.
In [1]: from pyamf import remoting
In [2]: content = file('/tmp/tsung_recorder20130311-1025-10.bin','rb')
In [3]: envelope = remoting.decode(content)
In [4]: print envelope
<Envelope amfVersion=3>
(u'/13', <Request target=u'null'>[<RemotingMessage body=[{u'dispatchEvents': False, u'methodName': u'retrieveFinePaperItems', u'subSessionId': u'59D88D9A318A', u'loaded': False, u'serviceName': u'productGlobalValueInitializationService', u'methodArgs': []}] source=None timestamp=0 destination=u'blazeEndpoint' clientId=u'C85A1B2C-7D09-9B2B-B1D2-DC011356C968' headers={'DSId': u'C85A1717-9118-81F4-D237-5DAB430FE859', 'DSEndpoint': None} timeToLive=0 messageId=u'6017787D-86CB-859D-B834-59D8D75F2280' operation=u'perform' />]</Request>)
</Envelope>
The binary I used in my repro steps can be downloaded at tsung_recorder20130311-1025-10.bin.
Any comments or suggestions would be highly appreciated.
Hi Ruslan,
I'm hitting a problem with references:
D1 = {date, 123456.45, 1},
D2 = {date, 789456.21, 2},
% happy
D1D2 = amf3:encode([D1,D2]),
D1D1 = amf3:encode([D1,D1]),
% still happy
amf3:decode(D1D2),
% error
amf3:decode(D1D1)
It's hard to tell if the encoding generates wrong references or it's just the decoding part that fails. I have tested with other referentiable (namely: objects) and it fails too, so it's not limited to date references.
Thanks for your help!
D.
I send an object of type "C" which is the third level in a class hierarchy as follows:
Class A (abstract, no properties)
Class B < A
var1:Number = 1
Class C < B
var2:String = "str-value"
var3:Number = 200
stack is something like the following:
** exception error: no function clause matching
amf3:decode(<<5,127,255,255,255,224,0,0,0>>,
{5,
{0,<<"C">>,nil,
{1,<<"var2">>,nil,
{2,<<"var3">>,nil,
{3,<<"var1">>,nil,
{4,<<"str-value">>,nil,nil}}}}}},
{1,
{0,
{object,<<"SentTableActionMsg">>,[]},
nil,nil}},
{1,
{0,
{trait,<<"C">>,false,
false,
[action,amount,table]},
nil,nil}})
in function amf3:decode_dense/6
in call from amf3:decode_object/5
in call from amf3:decode/4
in call from amf3:decode/1
If I cut class C out of the inheritance hierarchy and give it a similar property as class B, then serialize and decode it, it works fine.
Hi,
Do you have some examples of utilization ?
Thank you,
Alexandre
Hi, I'm working with shared objects and got following problem:
Data = <<17,10,11,1,3,97,5,63,211,201,72,133,0,0,0,1>>.
{Arg, <<>>} = amf0:decode(Data). %% {object,<<>>,[{<<"a">>,0.30916035640984774}]}
amf0:encode(Arg).
** exception error: bad argument
in function atom_to_binary/2
called as atom_to_binary(<<"a">>,utf8)
in call from amf0:'-encode/2-lc$^1/1-0-'/1
in call from amf0:encode/2
in call from amf0:encode/1
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