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From "Robert Newson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (COUCHDB-433) CouchDB doesn't handle Expect header.
Date Wed, 12 Aug 2009 18:13:14 GMT

    [ https://issues.apache.org/jira/browse/COUCHDB-433?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12742501#action_12742501
] 

Robert Newson commented on COUCHDB-433:
---------------------------------------

This test demonstrates the bug. Because it's executed serially, it just hangs forever in the
face of the incorrect Expect-Continue handling;

couchTests.custom_test = function(debug) {
  var db = new CouchDB("test_suite_db");
  db.deleteDb();
  db.createDb();

  var db2 = new CouchDB("test_suite_db", {"Expect":"100-continue"});

  if (debug) debugger;

  T(db2.save({_id:"1",a:2,b:4}).ok);
  T(db2.open("1") != null);
};




> CouchDB doesn't handle Expect header.
> -------------------------------------
>
>                 Key: COUCHDB-433
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-433
>             Project: CouchDB
>          Issue Type: Bug
>    Affects Versions: 0.10
>            Reporter: Robert Newson
>
> An HTTP client may elect to send an "Expect: 100-Continue" header. All compliant HTTP
servers are required to;
> "A server that does not understand or is unable to comply with any of the expectation
values in the Expect field of a request MUST respond with appropriate error status. The server
MUST respond with a 417 (Expectation Failed) status if any of the expectations cannot be met
or, if there are other problems with the request, some other 4xx status."
> from http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
> CouchDB sends neither the Continue response (if it supports expect-continue) or 417 (if
it doesn't).
> This leads clients that include the header to hang while they timeout expecting either
response.
> Suggest returning a 417 response so that compliant clients will retry immediately without
the Expect header.

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