[ 
https://issues.apache.org/jira/browse/COUCHDB-1287?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13153978#comment-13153978
 ] 

Randall Leeds commented on COUCHDB-1287:
----------------------------------------

I'm pretty sure you two won't actually hold a grudge, but try to be more civil. 
I'd really rather outside observers not think we all hate each other in this 
community.

I've been super busy lately, or I'd offer a complete review myself. It sounds 
like you're close to reconciling your expectations, though, and that you may 
both be writing to the same feature. I agree with the approach of Benoit's 
patch more, though, re: the level at which authorisation is controlled.

Benoit, can you put it on a branch along with Jason's tests? I think if you can 
get your patch to pass his tests we'll be a lot closer to landing this.
                
> Inbox Database ("write-only" mode)
> ----------------------------------
>
>                 Key: COUCHDB-1287
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-1287
>             Project: CouchDB
>          Issue Type: New Feature
>          Components: HTTP Interface
>    Affects Versions: 1.2
>            Reporter: Jason Smith
>            Priority: Minor
>         Attachments: 
> 0001-handle-dropbox-db.-Add-dropbox-true-to-security-obje.patch, 
> 0001-handle-dropbox-db.-Add-dropbox-true-to-security-obje.patch, 
> A_0001-Refactor-reader_acl-test-functions-into-a-loop.patch, 
> A_0002-Refactor-the-actual-read-check-out-of-the-member-che.patch, 
> A_0003-Allow-non-member-writes-if-_security.members.allow_a.patch, 
> B_0001-Refactor-reader_acl-test-functions-into-a-loop.patch, 
> B_0002-Refactor-the-actual-read-check-out-of-the-member-che.patch, 
> B_0003-Allow-non-member-updates-if-_security.members.allow_.patch
>
>
> Currently, we can only grant combined read+write access in the _security 
> object "members" section. A user can either do both or neither. This prevents 
> a very common requirement for couch apps: sending private information from 
> less-privileged users to more-privileged users.
> There is no (reasonable) way to make an "inbox" where anybody may create a 
> doc for me, but only I may read it. An inbox database allows user-to-user, or 
> user-to-admin private messages. (Not only chat messages, but asynchronous 
> notifications--with a per-user inbox, perhaps even service requests and 
> responses.)
> There is no reason _security.members (formerly .readers) should control write 
> access. validate_doc_update() functions do this better.
> I propose a boolean flag, _security.members.allow_anonymous_writes. If it is 
> true, then CouchDB will allow document updates from non-members, giving 
> validate_doc_update() the final word on accepting or rejecting the update.
> Requirements:
> 1. Everything about _security stays the same (backward-compatible)
> 2. If members.allow_anonymous_writes === true, then most PUT and POSTs may 
> proceed
> 3. All updates are still subject to approval by all validate_doc_update 
> functions, same as before.
> These are the known changes to the security model. I consider these all to be 
> either very unlikely in practice, or worth the trade-off.
> * If you write to an inbox DB, you know, for a time, a subset of its 
> documents (but that's the point)
> * An _update function could reveal a document to the user, with or without 
> changing it. However, an admin must install such a misguided update function.
> * You can launch timing attacks to learn information about validate_doc_update
>   * You might discover whether doc IDs exist in the DB or not
>   * You might discover a well-known open source validation function. You can 
> look for bugs in its source code.
> * Zero or more things which Jason can't think of

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: 
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Reply via email to