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https://issues.apache.org/jira/browse/COUCHDB-3174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15553173#comment-15553173
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ASF GitHub Bot commented on COUCHDB-3174:
-----------------------------------------
Github user davisp commented on the issue:
https://github.com/apache/couchdb-couch/pull/201
+1 but we'll want to document the new behavior somewhere. Also, you don't
need the Jira: in front of your COUCHDB-3174 in the commit message.
> max_document_size setting can by bypassed by issuing multipart/related
> requests
> -------------------------------------------------------------------------------
>
> Key: COUCHDB-3174
> URL: https://issues.apache.org/jira/browse/COUCHDB-3174
> Project: CouchDB
> Issue Type: Bug
> Reporter: Nick Vatamaniuc
> Attachments: attach_large.py
>
>
> Testing how replicator handled small values of max_document_size parameter,
> discovered if user issues PUT requests which are multipart/related, then
> max_document_size setting is bypassed.
> Wireshark capture of a PUT with attachments request coming from replicator in
> a EUnit test I wrote. max_document_size was set to 10000 yet a 70k byte
> document with a 70k byte attachment was created.
> {code}
> PUT /eunit-test-db-147555017168185/doc0?new_edits=false HTTP/1.1
> Content-Type: multipart/related; boundary="e5d21d5fd988dc1c6c6e8911030213b3"
> Content-Length: 140515
> Accept: application/json
> --e5d21d5fd988dc1c6c6e8911030213b3
> Content-Type: application/json
> {"_id":"doc0","_rev":"1-40a6a02761aba1474c4a1ad9081a4c2e","x":"xxxx....
> ...xxxx","_revisions":{"start":1,"ids":["40a6a02761aba1474c4a1ad9081a4c2e"]},"_attachments":{"att1":{"content_type":"app/binary","revpos":1,"digest":"md5-u+COd6RLUd6BGz0wJyuZFg==","length":70000,"follows":true}}}
> --e5d21d5fd988dc1c6c6e8911030213b3
> Content-Disposition: attachment; filename="att1"
> Content-Type: app/binary
> Content-Length: 70000
> xxxxx....xxxxx
> --e5d21d5fd988dc1c6c6e8911030213b3--
> HTTP/1.1 201 Created
> {code}
> Here is a regular request which works as expected:
> {code}
> PUT /dbl/dl2 HTTP/1.1
> Content-Length: 100026
> Content-Type: application/json
> Accept: application/json
> {"_id": "dl2", "size": "xxxx...xxx"}
> HTTP/1.1 413 Request Entity Too Large
> {code}
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