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https://issues.apache.org/jira/browse/COUCHDB-1528?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Adam Kocoloski updated COUCHDB-1528:
------------------------------------
Component/s: Logging
> Error messages for malformed show functions are unhelpful
> ---------------------------------------------------------
>
> Key: COUCHDB-1528
> URL: https://issues.apache.org/jira/browse/COUCHDB-1528
> Project: CouchDB
> Issue Type: Bug
> Components: Database Core, HTTP Interface, Logging
> Affects Versions: 1.2
> Environment: Windows XP sp3
> Reporter: Osher E
> Labels: content-type, http-headers, show-function
>
> h2. send headers on a Show Function causes badarg error
> h3. Request
> {code}
> http://dev.server.com:5984/db/_design/app/_show/env_settings/app1-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 || "callback"
> , "({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
> works only when the entire headers part is commented out.
> 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}
> $r(
> { app : "app1"
> , env : "dev"
> , ver : 10
> , uses:
> { front: "http://dev.server.com/front/";
> , auth: "http://qas.server.com/auth/";
> , back: "http://dev.server.com/back/";
> }
> }
> )
> {code}
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