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From "Adam Kocoloski (JIRA)" <j...@apache.org>
Subject [jira] Closed: (COUCHDB-345) "High ASCII" can be inserted into db but not retrieved
Date Wed, 23 Sep 2009 20:57:16 GMT

     [ https://issues.apache.org/jira/browse/COUCHDB-345?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Adam Kocoloski closed COUCHDB-345.
----------------------------------

       Resolution: Fixed
    Fix Version/s: 0.10
         Assignee: Adam Kocoloski

Ok, I've committed the patch I wrote to trunk and the 0.10 release branch.  I'll submit it
upstream to the Mochi team as well.  We still need to address the issue of alternate encodings
and Content-Encoding headers so we don't come across as "lazy and inconsiderate" :)

> "High ASCII" can be inserted into db but not retrieved
> ------------------------------------------------------
>
>                 Key: COUCHDB-345
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-345
>             Project: CouchDB
>          Issue Type: Bug
>    Affects Versions: 0.9
>         Environment: OSX 10.5.6
>            Reporter: Joan Touzet
>            Assignee: Adam Kocoloski
>             Fix For: 0.10
>
>         Attachments: badenc1.patch, badtext.tar.gz, enctest.zip, reject_invalid_utf8.patch
>
>
> It is possible to PUT/POST a document into CouchDB with a "high ASCII" value that cannot
be retrieved. This results from not escaping a non-ASCII value into \u#### when PUT/POSTing
the document.
> The attached sample code will recreate the problem using the hex value D8 (Ø) in a possibly
unsavoury test string.
> Sample output against 0.9.0 is as follows:
> ================================================
> {
>     "ok": true
> }
> {
>     "id": "fail", 
>     "ok": true, 
>     "rev": "1-76726372"
> }
> {
>     "error": "ucs", 
>     "reason": "{bad_utf8_character_code}"
> }
> ================================================
> Please note this defect turned up another problem, namely that the bad_utf8_character_code
exception thrown by a design document attempting to map() the bad document caused Futon to
fail silently in building the view, with no indication (except via debug log) that there was
a failure. The log indicated two attempts to build the view, both failing, followed by an
uncaught exception error for Futon.
> Based on this, there are likely other areas in the codebase that do not handle the bad_utf8_character_code
exception correctly.
> My belief is that CouchDB shouldn't accept this input and should have rejected the PUT/POST,
or should have escaped the input itself before the insertion.

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