Hi Colvin,

We're still taking a look at fixing the bug, but as a workaround in
the meantime, you can look into adding a "forwardCredentials":true
property under the "authentication" section of security.json.  That
seems to fix the issue in my reproduction at least.

e.g.

{
    "authentication": {
        "blockUnknown": true,
        "class": "solr.BasicAuthPlugin",
        "credentials": {
            "solradmin": "<encoded-pw>"
        },
        "forwardCredentials": true
    },
    ...
}

Jason

On Mon, Jun 3, 2019 at 9:31 AM Jason Gerlowski <gerlowsk...@gmail.com> wrote:
>
> One last note: as far as I can tell, nothing about this issue is
> specific to JSON Faceting or the JSON request API.  It can be
> triggered just as easily with "/select?q=*:*".
>
> The bug created for this is: SOLR-13510
>
> On Mon, Jun 3, 2019 at 9:17 AM Jason Gerlowski <gerlowsk...@gmail.com> wrote:
> >
> > I'm also able to reproduce this bug on master.  A few more notes about
> > the bad behavior:
> >
> > - the behavior occurs regardless of the specific permissions
> > configured in security.json.  (i.e. whether the top permission is
> > "all", or "security-edit", or there are no permissions at all.)
> > - I tried looking for a pattern in which requests saw the 401s, but
> > didn't have any luck.  The 401 occurs when talking to the whole
> > collection or targeting individual cores directly.  It occurs when
> > curl hits a host containing a replica for the collection in question,
> > and when it doesnt. etc.  This distinguishes it from SOLR-13472, which
> > seems more specific to collection structure/layout.
> >
> > I'll create a bug for this in JIRA.
> >
> > On Sun, Jun 2, 2019 at 9:53 AM Colvin Cowie <colvin.cowie....@gmail.com> 
> > wrote:
> > >
> > > Hello. I encountered this issue too and wrote this up before I found this
> > > thread, but I thought I might as well post it still, if it helps...
> > >
> > > Currently I'm trying to move our product on to Solr 8.1.1. We are 
> > > currently
> > > using 6.6.6, so things have definitely moved on.
> > >
> > > We use the BasicAuthPlugin + RuleBasedAuthorizationPlugin to lock down 
> > > Solr
> > > (and we also secure our zookeeper). Here's an example for solradmin as the
> > > user and password
> > >
> > > {
> > >     "authentication": {
> > >         "blockUnknown": true,
> > >         "class": "solr.BasicAuthPlugin",
> > >         "credentials": {
> > >             "solradmin": "PIWZwkGnEKxKnqUs3X08xmbmYBaYyAeP3FiKp7fmeHc=
> > > Lnbp6bEbE7Ap8lXvQDKkUX2Xw53QDgP6Ae8QRT0P5/A="
> > >         }
> > >     },
> > >     "authorization": {
> > >         "class": "solr.RuleBasedAuthorizationPlugin",
> > >         "permissions": [
> > >             {
> > >                 "name": "all",
> > >                 "role": "admin"
> > >             }
> > >         ],
> > >         "user-role": {
> > >             "solradmin": "admin"
> > >         }
> > >     }
> > > }
> > >
> > >
> > > On Solr 8.1.1, using our previously working security.json, running queries
> > > (through the admin UI currently) I non-deterministically get 401 responses
> > > on queries when a collection has more than 1 shard. Increasing the number
> > > of shards in the collection makes the errors more likely.
> > >
> > > {
> > >   "responseHeader":{
> > >     "zkConnected":true,
> > >     "status":401,
> > >     "QTime":30,
> > >     "params":{
> > >       "q":"*:*",
> > >       "_":"1559474550365"}},
> > >   "error":{
> > >     "metadata":[
> > >
> > > "error-class","org.apache.solr.client.solrj.impl.BaseHttpSolrClient$RemoteSolrException",
> > >
> > > "root-error-class","org.apache.solr.client.solrj.impl.BaseHttpSolrClient$RemoteSolrException"],
> > >     "msg":"Error from server at null: Expected mime type
> > > application/octet-stream but got text/html. <html>\n<head>\n<meta
> > > http-equiv=\"Content-Type\"
> > > content=\"text/html;charset=utf-8\"/>\n<title>Error 401 require
> > > authentication</title>\n</head>\n<body><h2>HTTP ERROR 401</h2>\n<p>Problem
> > > accessing /solr/gettingstarted_shard4_replica_n6/select. Reason:\n<pre>
> > >  require authentication</pre></p>\n</body>\n</html>\n",
> > >     "code":401}}
> > >
> > > The security stats indicate this is happening because the requests do not
> > > have credentials with them, e.g.
> > > http://localhost:8983/solr/#/gettingstarted_shard4_replica_n6/plugins?type=security&entry=org.apache.solr.security.BasicAuthPlugin
> > >
> > >  org.apache.solr.security.BasicAuthPlugin
> > >     class:
> > >         org.apache.solr.security.BasicAuthPlugin
> > >     description:
> > >         Authentication Plugin org.apache.solr.security.BasicAuthPlugin
> > >     stats
> > >         SECURITY./authentication.authenticated:
> > >             182
> > >         SECURITY./authentication.errors.count:
> > >             0
> > >         SECURITY./authentication.failMissingCredentials:
> > >             58
> > >         SECURITY./authentication.failWrongCredentials:
> > >             0
> > >         SECURITY./authentication.passThrough:
> > >             0
> > >         SECURITY./authentication.requestTimes.meanRate:
> > >             0.4183414110946125
> > >         SECURITY./authentication.requests:
> > >             240
> > >         SECURITY./authentication.totalTime:
> > >             117791100
> > >
> > > I assume that this is connected to the changes around
> > > https://issues.apache.org/jira/browse/SOLR-7896 and
> > > https://issues.apache.org/jira/browse/SOLR-13344 I've tested with Solr
> > > 7.6.0 and it appears to be unaffected
> > >
> > > Repro steps:
> > >    # Extract solr 8.1.1.
> > >    # bin\solr start -e cloud
> > >         1 node / [default port] / [default collection name] / 4 shards / 1
> > > replica / [_default configuration]
> > >    # server\scripts\cloud-scripts\zkcli -zkhost localhost:9983 -cmd 
> > > putfile
> > > /security.json <example-security.json file with content from example 
> > > above>
> > >
> > >    # Execute repeated GETS to
> > > http://localhost:8983/solr/gettingstarted/select?q=*%3A* - a lot of them,
> > > but not all, will fail with 401s
> > >
> > >
> > > Also as a side note, because the authentication is now done through the
> > > form login rather than the browser basic auth, if you go directly to a non
> > > UI url (e.g. http://localhost:8983/solr/main_index/select?q=*%3A*) you 
> > > have
> > > to authenticate to it using the browser's basic auth prompt. Which is
> > > slightly annoying since the query page in the Admin UI generates links to
> > > it for the queries you run, and you've already authenticated to get there.
> > > But it's not a massive burden or anything... I guess I just preferred
> > > having the browser BA prompt.
> > >
> > > Thanks

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