Hi Paul,
I'm not trying to return arbitrary binary data,I really just try to
post an attached file to an external handler. Right now the handler
returns a static response which works when posting form data (without
binary data in it) and with get request. It doesn't work when posting
a binary file. I don't think it's a problem with the handler itself.
I don't know why the couchdb is trying to encode the binary post
request as json.
Greetings,
Lennart
On Nov 10, 2009, at 11:26 PM, Paul Davis wrote:
On Tue, Nov 10, 2009 at 5:22 PM, Lennart Melzer <[email protected]>
wrote:
I just looked through the error logs and the code a bit more. I
think this
passage describes best what seems to happen (though I don't know why)
So the stracktrace shows that the mochiweb passes the request to
couch_httpd:handle_request where it seems to try to call send_json
(whysoever). It all fails when it tries to encode the binary data
as a json
string. This all seems to happen before couch_httpd_external.erl
stuff gets
called, which might be able to handle binary data correctly.
Here's the log snippet:
crasher:
initial call: mochiweb_socket_server:acceptor_loop/1
pid: <0.1059.0>
registered_name: []
exception exit: {ucs,{bad_utf8_character_code}}
in function xmerl_ucs:from_utf8/1
in call from mochijson2:json_encode_string/2
in call from mochijson2:'-json_encode_proplist/2-fun-0-'/3
in call from lists:foldl/3
in call from mochijson2:json_encode_proplist/2
in call from couch_httpd:send_json/4
in call from couch_httpd:handle_request/5
in call from mochiweb_http:headers/5
Anyone out that knows more about the internals of couchdb than I
do? I would
be grateful for any advice (gotta learn some erlang programming
soonish).
Greetings,
Lennart
On Nov 10, 2009, at 12:13 AM, Paul Davis wrote:
On Mon, Nov 9, 2009 at 12:15 PM, Lennart Melzer <l.mel...@tu-
bs.de> wrote:
I am running Revision 832477 of the couchdb trunk
On Nov 9, 2009, at 6:09 PM, Paul Davis wrote:
On Mon, Nov 9, 2009 at 11:54 AM, Lennart Melzer <l.mel...@tu-
bs.de>
wrote:
Right now, posting or putting binary data to an external
handler fails,
since the data is parsed as a UTF-8 String and not treated as
binary.
The
external handler never gets to do its work, so this might be an
issue
with
the handling of data sent to an external handler. Am I misusing
the
external-handler interface?
Error snippet:
[error] [<0.95.0>] {error_report,<0.30.0>,
{<0.95.0>,std_error,
{mochiweb_socket_server,235,
{child_error,{ucs,{bad_utf8_character_code}}}}}}
Greetings,
Lennart
Lennart,
What version of CouchDB are you on? I seem to remember a patch for
this going into trunk at some point. Not sure if that was pre/post
0.10 though.
Paul Davis
Lennart,
Hmm, looking through the svn log I'm not seeing a commit that
mentions
body or posts. I swear I remember something like that coming through
at one point. Benoit, didn't you have something to do with that?
Paul Davis
Lennart,
That stack trace suggests that you're trying to return a JSON response
that is not valid JSON. If your external is trying to return arbitrary
binary data in the _external response object you'll need to make sure
and use the body member.
Paul Davis
