Using wamp.session.list segfaults the router

[johannwagner]

Hey,

I just tried to use wamp.session.list with an auth role filter, as described here.

My call using kraftfahrstrasse:

const [sessionListPromise] = socketConnection.Call('wamp.session.list', [['user']]);

Router Log:

interconnect_1           | panic: interface conversion: interface {} is []interface {}, not []string
interconnect_1           | 
interconnect_1           | goroutine 8 [running]:
interconnect_1           | github.com/EmbeddedEnterprises/autobahnkreuz/vendor/github.com/gammazero/nexus/router.(*realm).sessionList(0xc4201989c0, 0xc420179a00, 0x196520c5, 0x8a7d5c35da7c3d88)
interconnect_1           | 	/go/src/github.com/EmbeddedEnterprises/autobahnkreuz/vendor/github.com/gammazero/nexus/router/realm.go:829 +0x363
interconnect_1           | github.com/EmbeddedEnterprises/autobahnkreuz/vendor/github.com/gammazero/nexus/router.(*realm).(github.com/EmbeddedEnterprises/autobahnkreuz/vendor/github.com/gammazero/nexus/router.sessionList)-fm(0xc420179a00, 0xc420021350, 0x2)
interconnect_1           | 	/go/src/github.com/EmbeddedEnterprises/autobahnkreuz/vendor/github.com/gammazero/nexus/router/realm.go:267 +0x34
interconnect_1           | github.com/EmbeddedEnterprises/autobahnkreuz/vendor/github.com/gammazero/nexus/router.(*realm).metaProcedureHandler(0xc4201989c0)
interconnect_1           | 	/go/src/github.com/EmbeddedEnterprises/autobahnkreuz/vendor/github.com/gammazero/nexus/router/realm.go:774 +0x346
interconnect_1           | created by github.com/EmbeddedEnterprises/autobahnkreuz/vendor/github.com/gammazero/nexus/router.(*realm).run
interconnect_1           | 	/go/src/github.com/EmbeddedEnterprises/autobahnkreuz/vendor/github.com/gammazero/nexus/router/realm.go:298 +0x6cb
slimerp-service-deploy_interconnect_1 exited with code 2

https://github.com/gammazero/nexus/blob/master/router/realm.go#L829

I tried to figure out the issue in the code, but I was not able to and I think, I use this correctly. No matter what, this should not crash the entire router, even if this is not used correctly.

Best Regards,
Johann

[johannwagner]

@martin31821 has figured out the bug. Working on PR.