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From "Mclean, Adam" <>
Subject Storing text/plain attachments and digest
Date Thu, 01 Nov 2012 20:49:28 GMT
Hi list,

I'm working on using couch as a script / configuration file repository.
Then retrieving the contents as they are updated to various hosts.

The digest produced by the file upload is key to this working for me so
I'm not replacing files that are already the same in couch.  I've been
struggling with attachments that are uploaded as content-type
'text/plain'.  I haven't been able to match the md5sum that couch shows
me under any circumstance.  The text/plain I'm sending up is us-ascii
which to my understanding from an md5sum perspective wouldn't be any
different represented as UTF-8.

When I upload a file without a content-type of text/plain, I find the
md5sum representation is accurate.

I've also noticed the headers when retrieving a text/plain attachment
show as:
HTTP/1.1 200 OK
Server: CouchDB/1.2.0 (Erlang OTP/R15B02)
ETag: "2DvSqQDg7SoM+Su+Ymkt4A=="
Date: Thu, 01 Nov 2012 20:36:37 GMT
Content-Type: text/plain
Content-Length: 8840
Cache-Control: must-revalidate
Accept-Ranges: none

Versus something encoded differently:
Server: CouchDB/1.2.0 (Erlang OTP/R15B02)
ETag: "tDK39M3il/9xLqnYLosWKg=="
Date: Thu, 01 Nov 2012 20:44:42 GMT
Content-Type: application/x-perl
Content-MD5: tDK39M3il/9xLqnYLosWKg==
Content-Length: 7080
Cache-Control: must-revalidate
Accept-Ranges: bytes

Which produces a 'Content-MD5' that I can verify / duplicate.

What am I missing?  Are md5s not generated for text/plain?


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