Hi,

1) Not quite sure which language generates the message, but I'm thinking
possibly C++. Not Python, for sure. I do not have access to the source
file, although I do have access to examples in C++ and C# for consumers,
that do work.

2) You mean the .thrift file?



Thank you!


On Thu, Jan 11, 2018 at 8:42 PM, Chet Murthy <[email protected]> wrote:

> Andre',
>
> (1) The message is generated in which language?  Python?
>
> (2) Can you supply the IDL for the message payload and message itself?
>
> On Thu, Jan 11, 2018 at 10:35 AM, André Lemos <[email protected]> wrote:
>
> > On Thu, Jan 11, 2018 at 5:32 PM, Kevin Clark <[email protected]>
> > wrote:
> >
> > > On Thu, Jan 11, 2018 at 8:41 AM André Lemos <[email protected]> wrote:
> > >
> > > > On Thu, Jan 11, 2018 at 4:34 PM, Kevin Clark <[email protected]>
> > > > wrote:
> > > >
> > > > > On Thu, Jan 11, 2018 at 8:19 AM André Lemos <[email protected]>
> > wrote:
> > > > >
> > > > > > On Thu, Jan 11, 2018 at 4:13 PM, Kevin Clark <
> > [email protected]>
> > > > > > wrote:
> > > > > >
> > > > > > > On Thu, Jan 11, 2018 at 7:40 AM André Lemos <[email protected]>
> > > > wrote:
> > > > > > >
> > > > > > > > Hi,
> > > > > > > >
> > > > > > > >
> > > > > > > > When parsing through a TBinaryProtocol, trying to get the
> > > > > > > readMessageBegin,
> > > > > > > > readI32, returns 16777216, which will raise an EOFError,
> > because
> > > > it's
> > > > > > > just
> > > > > > > > a too big of a value. If I use something like 25, I do get
> > > > something
> > > > > > > pretty
> > > > > > > > closer to what I am trying to get, although I still get the
> > > initial
> > > > > bit
> > > > > > > of
> > > > > > > > the protocol, and not just the name I am trying to get.
> > > > > > > >
> > > > > > > > Any hints as to where I should be looking?
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > Providing the language of the lib you’re using, the code, and
> the
> > > > > message
> > > > > > > you expect to be on the wire would make it easier for someone
> to
> > > help
> > > > > > you.
> > > > > >
> > > > > >
> > > > > >
> > > > > > I am using Python 2, I've sent the code. The message I am trying
> to
> > > > > parse,
> > > > > > looks like this:
> > > > > >
> > > > > >
> > > > > > \x01\x00\x00\x00\xed\x00\x00\x00\x80\x01\x00\x04\x00\x00\
> > > > > x00\x15RequestProcessListing\x00\x00\x00\x00\x0c\x00\x01\
> > > > > x0b\x00\x01\x00\x00\x00\x10\xfe\x8e\xc3F\xed\\\x8aG\x97+\
> > > > > x0cp\x0eY\x05U\x0b\x00\x02\x00\x00\x00\x0fThe
> > > > > > Observer XT\x08\x00\x03\x00\x00\x00\x02\x0b\x00\x04\x00\x00\x00\
> > > x12The
> > > > > > Observer XT
> > > > > >
> > > > > > 14\x0b\x00\x05\x00\x00\x00\x08LEMOS-PC\x0b\x00\x06\x00\
> > > > > x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\
> > > > > x00\x00\x00\x00\x00\x0c\x00\x07\x08\x00\x01\x00\x00\x00\
> > > > > x01\x0c\x00\x02\x0c\x00\x01\x0b\x00\x01\x00\x00\x00\x00\
> > > > > x08\x00\x02\x00\x00\x00\x00\x0f\x00\x03\x0c\x00\x00\x00\
> > > > > x00\x0f\x00\x04\x0c\x00\x00\x00\x00\x00\x00\x0c\x00\x03\
> > > > > x02\x00\x01\x01\x02\x00\x02\x01\x0b\x00\x03\x00\x00\x00\
> > > > > x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\
> > > > > x00\x00\x00\x00\x00\x00\x00
> > > > >
> > > > >
> > > > > Well the number you’ve pasted looks like it’s 1 << 24, so it should
> > fit
> > > > in
> > > > > a 32 bit int just fine. I’m not seeing actual code anywhere, just
> > > > > descriptions of method calls. I suspect this is a simple oversight
> > but
> > > > it’s
> > > > > hard to tell you more without the actual code and the precise error
> > > > > message.
> > > > >
> > > >
> > > >
> > > >
> > > > here's the code (Python 2):
> > > >
> > > >     trans1 = TTransport.TMemoryBuffer()
> > > >     trans1.open()
> > > >     trans = TTransport.TMemoryBuffer(body)
> > > >     trans.open()
> > > >     iprot = TBinaryProtocol.TBinaryProtocol(trans)
> > > >     oprot = TBinaryProtocol.TBinaryProtocol(trans1,
> strictWrite=False)
> > > >     tr = Processor(CommonService.CommonService.Iface())
> > > >     tr.process(iprot, oprot)
> > > >
> > > >
> > > > issue is that readI32() gets me a EOFError as it tries to read way
> past
> > > the
> > > > full message.
> > >
> > >
> > > Ah! Issue looks like it’s youre using strictWrite=False in one of the
> > > protocols. That’s going to skip writing the version which the read side
> > is
> > > looking for. Been too long since I touched the code to remember the
> > > intended purpose of those args, but that should at least tell you why
> > it’s
> > > blowing up - it expects more data because a 32 bit version should be
> > there
> > > in the header.
> > >
> > > Hope that helps.
> >
> >
> >
> > Still the same problem...
> >
> >
> >   File "thrift/protocol/TBinaryProtocol.py", line 153, in
> readMessageBegin
> >     name = self.trans.readAll(sz)
> >   File "thrift/transport/TTransport.py", line 65, in readAll
> >     raise EOFError()
> > EOFError
> >
> >
> >
> > :\
> >
>

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