refactor:Added Integration test and tiny refactoring (#23)

* Refactoring name convention

* Added integration test

* Added Makefile

* Bump golang.org/x/crypto from 0.0.0-20220826181053-bd7e27e6170d to 0.6.0

Bumps [golang.org/x/crypto](https://github.com/golang/crypto) from 0.0.0-20220826181053-bd7e27e6170d to 0.6.0.
- [Release notes](https://github.com/golang/crypto/releases)
- [Commits](https://github.com/golang/crypto/commits/v0.6.0)

---
updated-dependencies:
- dependency-name: golang.org/x/crypto
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

* Upgrade go from 1.16 to 1.20

* Added integration test: HTTP, TCP, SSH

* Added Makefile Improve README.md

* Fixed unit test CI

* Fixed go-version

* Added integration test into C.I. actions

---------

Signed-off-by: Mario Candela <m4r10.php@gmail.com>
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

integration_test/integration_test.go

@@ -0,0 +1,115 @@
+package integration
+
+import (
+	"beelzebub/builder"
+	"beelzebub/parser"
+	"github.com/go-resty/resty/v2"
+	"github.com/melbahja/goph"
+	"github.com/stretchr/testify/suite"
+	"golang.org/x/crypto/ssh"
+	"net"
+	"net/http"
+	"os"
+	"testing"
+)
+
+type IntegrationTestSuite struct {
+	suite.Suite
+	beelzebubBuilder *builder.Builder
+	httpHoneypotHost string
+	tcpHoneypotHost  string
+	sshHoneypotHost  string
+}
+
+func TestIntegrationTestSuite(t *testing.T) {
+	suite.Run(t, new(IntegrationTestSuite))
+}
+
+func (suite *IntegrationTestSuite) SetupSuite() {
+	suite.T().Helper()
+	if os.Getenv("INTEGRATION") == "" {
+		suite.T().Skip("skipping integration tests, set environment variable INTEGRATION")
+	}
+	suite.httpHoneypotHost = "http://localhost:8080"
+	suite.tcpHoneypotHost = "localhost:3306"
+	suite.sshHoneypotHost = "localhost"
+
+	beelzebubConfigPath := "./configurations/beelzebub.yaml"
+	servicesConfigDirectory := "./configurations/services/"
+
+	parser := parser.Init(beelzebubConfigPath, servicesConfigDirectory)
+
+	coreConfigurations, err := parser.ReadConfigurationsCore()
+	suite.Require().NoError(err)
+
+	beelzebubServicesConfiguration, err := parser.ReadConfigurationsServices()
+	suite.Require().NoError(err)
+
+	suite.beelzebubBuilder = builder.NewBuilder()
+
+	director := builder.NewDirector(suite.beelzebubBuilder)
+
+	suite.beelzebubBuilder, err = director.BuildBeelzebub(coreConfigurations, beelzebubServicesConfiguration)
+	suite.Require().NoError(err)
+
+	suite.Require().NoError(suite.beelzebubBuilder.Run())
+}
+
+func (suite *IntegrationTestSuite) TestInvokeHTTPHoneypot() {
+	response, err := resty.New().R().
+		Get(suite.httpHoneypotHost + "/index.php")
+
+	suite.Require().NoError(err)
+	suite.Equal(http.StatusOK, response.StatusCode())
+	suite.Equal("mocked response", string(response.Body()))
+
+	response, err = resty.New().R().
+		Get(suite.httpHoneypotHost + "/wp-admin")
+
+	suite.Require().NoError(err)
+	suite.Equal(http.StatusBadRequest, response.StatusCode())
+	suite.Equal("mocked response", string(response.Body()))
+}
+
+func (suite *IntegrationTestSuite) TestInvokeTCPHoneypot() {
+	tcpAddr, err := net.ResolveTCPAddr("tcp", suite.tcpHoneypotHost)
+	suite.Require().NoError(err)
+
+	conn, err := net.DialTCP("tcp", nil, tcpAddr)
+	suite.Require().NoError(err)
+	defer conn.Close()
+
+	_, err = conn.Write([]byte("hello!"))
+	suite.Require().NoError(err)
+
+	reply := make([]byte, 1024)
+
+	n, err := conn.Read(reply)
+	suite.Require().NoError(err)
+
+	suite.Equal("8.0.29\n", string(reply[:n]))
+}
+
+func (suite *IntegrationTestSuite) TestInvokeSSHHoneypot() {
+	client, err := goph.NewConn(
+		&goph.Config{
+			User:     "root",
+			Addr:     suite.sshHoneypotHost,
+			Port:     2222,
+			Auth:     goph.Password("root"),
+			Callback: ssh.InsecureIgnoreHostKey(),
+		})
+	suite.Require().NoError(err)
+	defer client.Close()
+
+	out, err := client.Run("")
+	suite.Require().NoError(err)
+
+	suite.Equal("root@ubuntu:~$ ", string(out))
+}
+
+//TODO test rabbitmq
+
+func (suite *IntegrationTestSuite) TestShutdownBeelzebub() {
+	suite.Require().NoError(suite.beelzebubBuilder.Close())
+}