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From "Jason Smith (JIRA)" <j...@apache.org>
Subject [jira] Created: (COUCHDB-815) Non-standard HTTP methods for view handlers (AKA WebDAV is b0rken) [PATCH]
Date Mon, 05 Jul 2010 05:31:50 GMT
Non-standard HTTP methods for view handlers (AKA WebDAV is b0rken) [PATCH]
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                 Key: COUCHDB-815
                 URL: https://issues.apache.org/jira/browse/COUCHDB-815
             Project: CouchDB
          Issue Type: Bug
          Components: Database Core
    Affects Versions: 1.0
            Reporter: Jason Smith
            Priority: Minor


CouchDB prevents the new view server handler methods, _show, _update, etc. from handling unknown
HTTP methods. This prevents Couch apps from being able to implement extensions to the HTTP
specification or to add application-specific methods to HTTP, violating the spirit of _show
and _update.

For example, it is not possible to make a CouchApp WebDAV server because _show and _list must
support the PROPFIND method.

In couch_httpd:handle_request_int/5, the response from Mochi is coerced to an atom if and
only if the atom already exists (using couch_util:to_existing_atom/1). That is an odd whitelist,
to say the least:

    $ curl localhost:5984 -X PROPFIND # Crashes mochiweb when to_existing_atom throws badarg
    curl: (52) Empty reply from server

    $ curl localhost:5984 -X list_to_binary # Any atom works
    {"error":"method_not_allowed","reason":"Only GET,HEAD allowed"}

Considering the cURL commands above, I filed this as a bug, not a feature. I will explore
some options and submit patches.

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