Osher E created COUCHDB-1528:
--------------------------------
Summary: send headers on a Show Function causes badarg error
Key: COUCHDB-1528
URL: https://issues.apache.org/jira/browse/COUCHDB-1528
Project: CouchDB
Issue Type: Bug
Components: Database Core, HTTP Interface
Affects Versions: 1.2
Environment: Windows XP sp3
Reporter: Osher E
h2. send headers on a Show Function causes badarg error
h3. Request
{code}
http://dev.osg-worlds.com:5984/opm/_design/verset/_show/env_settings/goa-dev?callback=$r
{code}
h3. Response
{code}
500 Internal Server Error
Cache-Control:must-revalidate
Content-Length:44
Content-Type:text/plain; charset=utf-8
Date:Mon, 27 Aug 2012 13:22:14 GMT
Server:CouchDB/1.2.0 (Erlang OTP/R15B)
{"error":"unknown_error","reason":"badarg"}
{code}
h3. Log entries:
{code]
[Mon, 27 Aug 2012 12:58:50 GMT] [error] [<0.6956.3>] Badarg error in HTTP
request
[Mon, 27 Aug 2012 12:58:50 GMT] [info] [<0.6956.3>] Stacktrace:
[{erlang,binary_to_list,
[{[{<<"Content-Type">>,
<<"text/javascript">>}]}],
[]},
{couch_httpd_external,
'-parse_external_response/1-fun-0-',1,
[{file,
"d:/relax/couchdb/src/couchdb/couch_httpd_external.erl"},
{line,157}]},
{lists,map,2,
[{file,"lists.erl"},{line,1173}]},
{lists,map,2,
[{file,"lists.erl"},{line,1173}]},
{couch_httpd_external,
'-parse_external_response/1-fun-1-',2,
[{file,
"d:/relax/couchdb/src/couchdb/couch_httpd_external.erl"},
{line,156}]},
{lists,foldl,3,
[{file,"lists.erl"},{line,1197}]},
{couch_httpd_external,
send_external_response,2,
[{file,
"d:/relax/couchdb/src/couchdb/couch_httpd_external.erl"},
{line,129}]},
{couch_httpd_db,do_db_req,2,
[{file,
"d:/relax/couchdb/src/couchdb/couch_httpd_db.erl"},
{line,230}]}]
{code}
h2. more info
h3. The show function
{code}
function(doc, req){
var u
, urls = doc.uses
, out =
[ req.query.callback || "OPM.start"
, "({app:\"", doc.app || ""
, "\",env:\"" , doc.env
, "\",ver:" , doc._rev.substr(0,doc._rev.indexOf("-"))
, ",uses:{"
];
for (u in urls)
out.push(u,":\"",urls[u],"\"",",");
out[out.length-1] = "}});";
start({headers: {"Content-Type": "text/javascript"}});
out.forEach(send)
}
{code}
Tried also
{code}
out = out.join("");
return {
headers:
{ "Content-Type" : "text/javascript"
, "Content-Length": out.length
}
, body: out
}
{code}
and
{code}
{ "Content-Type" : "text/javascript; charset=utf-8"
, "Content-Length": out.length
}
{code}
got same result
h3. Sample document:
{code}
{
"_id": "app1-dev",
"_rev": "10-269755da4f2c8ed771d9b301ec7d6163",
"env": "dev",
"app": "app1",
"uses": {
"front": "http://dev.server.com/front/";,
"auth": "http://qas.server.com/auth/";,
"back": "http://dev.server.com/back/";
}
}
{code}
h3. configuration
produced with WindowsXP, couch 1.2.0, OTP R15.
I first noted the problem accessing through vhost + _rewrite. However, the
problem is reproduced also without.
*vhosts setting*
{code}
opm.dev.couch.com = /db/_design/app/_rewrite
{code}
*rewrite section*
{code}
, rewrites :
[ {from:"/of/*", to:'_show/env_settings/*'}
, {from:"/*" , to:'*'}
]
{code}
h3. expected output (beautified)
{code}
{ app : "goa"
, env : "dev"
, ver : 10
, uses:
{ front: "http://dev.godofaxion.com/front/";
, auth: "http://qas.godofaxion.com/auth/";
, back: "http://dev.server.com/back/";
}
}
{code}
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