500 error accessing _browserid/include.js

[timbertson]

Using a fresh couchdb-build on ubuntu 11.10 with only this plugin enabled (and enabled in config), I can't get http://localhost:5985/_browserid/include.js

When I try, the console gives me:

[error] [<0.2585.0>] Uncaught error in HTTP request: {error,undef}
[info] [<0.2585.0>] Stacktrace: [{couch_httpd_browserid,handle_id_req,
                                  [{httpd,
                                    {mochiweb_request,#Port<0.2190>,'GET',
                                     "/_browserid/include.js",
                                     {1,1},
                                     {3,
                                      {"user-agent",
                                       {'User-Agent',
                                        "curl/7.21.6 (x86_64-pc-linux-gnu) libcurl/7.21.6 OpenSSL/1.0.0e zlib/1.2.3.4 libidn/1.22 librtmp/2.3"},
                                       {"host",
                                        {'Host',"localhost:5985"},
                                        {"accept",{'Accept',"*/*"},nil,nil},
                                        nil},
                                       nil}}},
                                    "127.0.0.1",'GET',
                                    [<<"_browserid">>,<<"include.js">>],
                                    [<<"_browserid">>,<<"include.js">>],
                                    {dict,5,16,16,8,80,48,
                                     {[],[],[],[],[],[],[],[],[],[],[],[],[],
                                      [],[],[]},
                                     {{[[<<"_design">>|
                                         #Fun<couch_httpd.8.127141751>]],
                                       [],
                                       [[<<"_view_cleanup">>|
                                         #Fun<couch_httpd.8.127141751>]],
                                       [],[],[],[],[],
                                       [[<<"_compact">>|
                                         #Fun<couch_httpd.8.127141751>]],
                                       [],[],
                                       [[<<"_temp_view">>|
                                         #Fun<couch_httpd.8.127141751>]],
                                       [[<<"_changes">>|
                                         #Fun<couch_httpd.8.127141751>]],
                                       [],[],[]}}},
                                    {user_ctx,null,
                                     [<<"_admin">>],
                                     <<"{couch_httpd_auth, default_authentication_handler}">>},
                                    undefined,
                                    {dict,6,16,16,8,80,48,
                                     {[],[],[],[],[],[],[],[],[],[],[],[],[],
                                      [],[],[]},
                                     {{[],
                                       [[<<"_show">>|
                                         #Fun<couch_httpd.10.127141751>]],
                                       [[<<"_info">>|
                                         #Fun<couch_httpd.10.127141751>],
                                        [<<"_list">>|
                                         #Fun<couch_httpd.10.127141751>]],
                                       [[<<"_update">>|
                                         #Fun<couch_httpd.10.127141751>]],
                                       [],[],[],[],[],
                                       [[<<"_rewrite">>|
                                         #Fun<couch_httpd.10.127141751>]],
                                       [],[],[],
                                       [[<<"_view">>|
                                         #Fun<couch_httpd.10.127141751>]],
                                       [],[]}}},
                                    undefined,#Fun<couch_httpd.6.127141751>,
                                    {dict,14,16,16,8,80,48,
                                     {[],[],[],[],[],[],[],[],[],[],[],[],[],
                                      [],[],[]},
                                     {{[[<<"_restart">>|
                                         #Fun<couch_httpd.6.127141751>],
                                        [<<"_replicate">>|
                                         #Fun<couch_httpd.6.127141751>]],
                                       [[<<"_active_tasks">>|
                                         #Fun<couch_httpd.6.127141751>]],
                                       [],[],
                                       [[<<"_utils">>|
                                         #Fun<couch_httpd.5.127141751>],
                                        [<<"/">>|
                                         #Fun<couch_httpd.5.127141751>],
                                        [<<"_config">>|
                                         #Fun<couch_httpd.6.127141751>]],
                                       [[<<"_log">>|
                                         #Fun<couch_httpd.6.127141751>]],
                                       [[<<"_browserid">>|
                                         #Fun<couch_httpd.6.127141751>]],
                                       [],
                                       [[<<"_all_dbs">>|
                                         #Fun<couch_httpd.6.127141751>]],
                                       [],
                                       [[<<"_stats">>|
                                         #Fun<couch_httpd.6.127141751>],
                                        [<<"favicon.ico">>|
                                         #Fun<couch_httpd.5.127141751>]],
                                       [[<<"_session">>|
                                         #Fun<couch_httpd.6.127141751>],
                                        [<<"_uuids">>|
                                         #Fun<couch_httpd.6.127141751>]],
                                       [],[],
                                       [[<<"_oauth">>|
                                         #Fun<couch_httpd.6.127141751>]],
                                       []}}}}],
                                  []},
                                 {couch_httpd,handle_request_int,5,
                                  [{file,
                                    "/home/tim/dev/web/couchdb/build-couchdb/dependencies/couchdb/src/couchdb/couch_httpd.erl"},
                                   {line,262}]},
                                 {mochiweb_http,headers,5,
                                  [{file,
                                    "/home/tim/dev/web/couchdb/build-couchdb/dependencies/couchdb/src/mochiweb/mochiweb_http.erl"},
                                   {line,126}]},
                                 {proc_lib,init_p_do_apply,3,
                                  [{file,"proc_lib.erl"},{line,227}]}]
[info] [<0.2585.0>] 127.0.0.1 - - 'GET' /_browserid/include.js 500

I've not dealt with erlang stack traces before, but I'm not sure if there's much there to go on...

[timbertson]

After getting the .js sources manually and trying it out, I get a 500 when I try to POST my assertion as well. So it's not just a matter of serving up files, the plugin in general seems to be responding with 500 errors. Which is unsurprising, given that serving files is probably not the hard part ;)

[jhs]

I believe this is an issue with activating the plugin. Erlang cannot find couch_httpd_browserid.beam so it can't run the handler code for the HTTP requests to /_browserid.

Try something like

export ERL_ZFLAGS="-pz /path/to/couchdb/lib/couchdb/plugins/browserid_couchdb/ebin"

before you run couch. How'd it go?

[timbertson]

That works perfectly, thanks. Was it an instruction I missed, or should this have been set up by build-couchdb? I am just running "~/dev/web/couchdb/build-couchdb/build/bin/couchdb" directly, not cding anywhere in particular or sourcing env.sh. I thought that was fine according to the instructions, but I may have missed something.

[jhs]

Unfortunately, this is getting into intermediate/advanced Erlang and CouchDB development. (Well, it's no more advanced than $RUBYPATH, or $PYTHON_PATH, but those languages are more widely known.)

Some planning is underway about making a proper plugin framework for projects like this, but until then it's a bit of bubble gum and duct tape.

[interactiveblueprints]

Could this 'workaround' be added tot the documentation? I've spend a long time searching for this solution.

[pfrazee]

:+1: for getting this info out there; just spent 30 minutes on it

[dmrq70]

+1 for getting this in the README. Not even google is finding this discussion.