[BUG] Shodan country_code Constraints Error

[ssnkhan]

Describe the bug

Just updated to Mihari 3.10.0, and getting the following error.

[Mihari::Structs::Shodan::Location.new] nil (NilClass) has invalid type for :country_code violates constraints (type?(String, nil) failed)

*A* `Dry::Struct::Error` *occured in background*: [Mihari::Structs::Shodan::Location.new] nil (NilClass) has invalid type for :country_code violates constraints (type?(String, nil) failed)
```/var/lib/gems/2.7.0/gems/dry-types-1.5.1/lib/dry/types/schema.rb:330:in `rescue in block in resolve_unsafe'
/var/lib/gems/2.7.0/gems/dry-types-1.5.1/lib/dry/types/schema.rb:327:in `block in resolve_unsafe'
/var/lib/gems/2.7.0/gems/dry-types-1.5.1/lib/dry/types/schema.rb:322:in `each'
/var/lib/gems/2.7.0/gems/dry-types-1.5.1/lib/dry/types/schema.rb:322:in `resolve_unsafe'
/var/lib/gems/2.7.0/gems/dry-types-1.5.1/lib/dry/types/schema.rb:62:in `call_unsafe'
/var/lib/gems/2.7.0/gems/dry-types-1.5.1/lib/dry/types/constructor.rb:87:in `call_unsafe'
/var/lib/gems/2.7.0/gems/dry-struct-1.4.0/lib/dry/struct/class_interface.rb:265:in `new'
/var/lib/gems/2.7.0/gems/mihari-3.10.0/lib/mihari/structs/shodan.rb:13:in `from_dynamic!'
/var/lib/gems/2.7.0/gems/mihari-3.10.0/lib/mihari/structs/shodan.rb:32:in `from_dynamic!'
/var/lib/gems/2.7.0/gems/mihari-3.10.0/lib/mihari/structs/shodan.rb:46:in `block in from_dynamic!'```

Steps to reproduce

ssl:"MetasploitSelfSignedCA" http.favicon.hash:-127886975 -http.title:"Bam! Application Error"

Expected behavior

Should not return any errors.

Actual behavior

Returns error as above.

Screenshots

N/A.

System Information:

• OS: Ubuntu
• Ruby version: 2.7.0
• Mihari version: 3.10.0

Additional context

N/A.

[ninoseki]

@ssnkhan Thank you for reporting.
The issue is not introduced by v3.10.0 but anyway I fixed it.
Please update to the latest version (v3.10.1).