To detail this better... I mean something to let app devs the chance to
produce these kind of views and rewriting rules:
a view emitting such these keys:
[["bob",...], ...]
[["bob",...], ...]
[["alice",...], ...]
[["alice",...], ...]
or also
[["manager",...], ...]
[["manager",...], ...]
[["author",...], ...]
[["author",...], ...]
where "bob" and "alice" are user docs in the db, while "manager" and
"author" are roles
and to define rewriting rules like the following:
{
"from" : "/userdocs",
"to" : "_view/userdocs",
"query": {
"startkey": [
":userCtx.name",
{
}
],
"endkey": [
":userCtx.name",
],
"reduce":"false",
"descending": "true",
"include_docs": "true"
}
},
or
{
"from" : "/roledocs",
"to" : "_view/roledocs",
"query": {
"startkey": [
":userCtx.roles[0]",
{
}
],
"endkey": [
":userCtx.roles[0]",
],
"reduce":"false",
"descending": "true",
"include_docs": "true"
}
},
where every ":userCtx.name" and ":userCtx.roles[*]" are rewritten by the
_rewrite engine, or better woudl be overwritten to prevent users from
providing their own values as query string parameters.
Benefits could be:
- security at view-level (withouth touching the view engine?!), so app devs
won't have to learn a new way of writing views
- performance?! Is a view only approach effectively faster than view/list?
2015-05-08 18:21 GMT+02:00 Giovanni Lenzi <[email protected]>:
> Hi everyone,
>
> I would like to write down some ideas I had, because there is high
> probability I'm going to forgot them soon :)
>
> This idea targets a way to implement server-side security by using views
> only, instead of view+list. If possible, It may open up a wide range of new
> possibilities for app devs.
>
> Given that views know nothing about userCtx, is it possible to enhance the
> _rewrite engine to create/overwrite a reserved dynamic variable, named
> ":userCtxName" with the value of userCtx.name? This variable could then be
> effectively used within the "to" or "query" rewriting rule attributes, as
> example, to perform read ACL at view level directly.
>
> More generally the question is: can _rewrite engine be improved to include
> userCtx concepts? Which could be the drawbacks?
>
> Ok, ideas finished. I won't bother you anymore. :)
>
> --
> Giovanni Lenzi
> www.smileupps.com
> Smileupps Cloud App Store
>
--
Giovanni Lenzi
www.smileupps.com
Smileupps Cloud App Store
