Integration of SpecializedHandler for Enhanced Archive Processing (#…

…1625)

* Add handler for .deb file formats.

* Add handler for .rpm file formats.

* update.

* move logic to general archive handler.

* update const.

* Add compile time guard.

* Remove redundant parens.

* Add checks to make sure we have the tools installed to extract arhives.

* Limit size of temp file for arhive reading.

* handle nested archives.

* add comment.

* use consistent name for tempEnv -> env

* fix handler fxn signature.

go.mod

@@ -43,6 +43,7 @@ require (
 	github.com/google/go-containerregistry v0.15.2
 	github.com/google/go-github/v42 v42.0.0
 	github.com/googleapis/gax-go/v2 v2.12.0
+	github.com/h2non/filetype v1.1.3
 	github.com/hashicorp/go-retryablehttp v0.7.4
 	github.com/hashicorp/golang-lru v0.5.1
 	github.com/jlaffaye/ftp v0.2.0

go.sum

@@ -315,6 +315,8 @@ github.com/gorilla/css v1.0.0 h1:BQqNyPTi50JCFMTw/b67hByjMVXZRwGha6wxVGkeihY=
 github.com/gorilla/css v1.0.0/go.mod h1:Dn721qIggHpt4+EFCcTLTU/vk5ySda2ReITrtgBl60c=
 github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
+github.com/h2non/filetype v1.1.3 h1:FKkx9QbD7HR/zjK1Ia5XiBsq9zdLi5Kf3zGyFTAFkGg=
+github.com/h2non/filetype v1.1.3/go.mod h1:319b3zT68BvV+WRj7cwy856M2ehB3HqNOt6sy1HndBY=
 github.com/h2non/parth v0.0.0-20190131123155-b4df798d6542 h1:2VTzZjLZBgl62/EtslCrtky5vbi9dd7HrQPQIx6wqiw=
 github.com/h2non/parth v0.0.0-20190131123155-b4df798d6542/go.mod h1:Ow0tF8D4Kplbc8s8sSb3V2oUCygFHVp8gC3Dn6U4MNI=
 github.com/hashicorp/errwrap v1.0.0 h1:hLrqtEDnRye3+sgx6z4qVLNuviH3MR5aQ0ykNJa/UYA=