Strings containing braces might cause an indefinite hang

[jszczepanskif5]

Environment

• ACC Version: 1.18
• AS3 Version: N/A
• BIG-IP Version: N/A

Summary

I've encountered this fun quoting corner case a while ago in a client UCS, only now tried to run it through ACC.

Brace matching might be broken in some strings-containing-braces scenarios, resulting in an indefinite freeze. Might be related to #78

Steps To Reproduce

Steps to reproduce the behavior:

1. Convert any of the following configs:

   ltm data-group internal /Common/regexp_special_characters {
   records {
       " " {
           data LostInSpace
       }
       "\\{" {
           data BracketStart
       }
       "\\}" {
           data BracketEnd
       }
   }
   type string
   }

   ltm data-group internal /Common/regexp_restore_characters {
   records {
       BracketEnd {
           data }
       }
       BracketStart {
           data {
       }
       LostInSpace {
           data " "
       }
   }
   type string
   }

2. ACC is now frozen indefinitely.

Note that unquoted strings { and } seemingly might also appear in other places in config; unsure if in all string-type fields.

[root@localhost:LICENSE EXPIRED:Standalone] config # tmsh modify auth user admin description "\{"    
[root@localhost:LICENSE EXPIRED:Standalone] config # tmsh list auth user admin
auth user admin {
    description {
    encrypted-password 123
    partition Common
    partition-access {
        all-partitions {
            role admin
        }
    }
    session-limit -1
    shell none
}

[delgadillo22]

Thank you for the report, I've added this to our internal backlog as CHARON-587 and will get this prioritized.

[p-semenov-f5]

Fixed in 1.19