Add inbucket docker image to allow local and automated testing of emails (#4901)

* add docker container for inbucket

* Add way to get the emails using inbucket and add a test for reset password

* add config setting to send emails

* update TestEmailTest

update

* add another test and fix wrong assert

* update per review

fix lint

change senders email

* Revert config.json to default values for EmailSettings section

* update test

* add setup to make the test run

utils/inbucket.go

@@ -0,0 +1,115 @@
+package utils
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"strings"
+)
+
+const (
+	INBUCKET_HOST = "http://dockerhost:9000"
+	INBUCKET_API  = "/api/v1/mailbox/"
+)
+
+// OutputJSONHeader holds the received Header to test sending emails (inbucket)
+type JSONMessageHeaderInbucket []struct {
+	Mailbox             string
+	ID                  string `json:"Id"`
+	From, Subject, Date string
+	To                  []string
+	Size                int
+}
+
+// OutputJSONMessage holds the received Message fto test sending emails (inbucket)
+type JSONMessageInbucket struct {
+	Mailbox             string
+	ID                  string `json:"Id"`
+	From, Subject, Date string
+	Size                int
+	Header              map[string][]string
+	Body                struct {
+		Text string
+		HTML string `json:"Html"`
+	}
+}
+
+func ParseEmail(email string) string {
+	pos := strings.Index(email, "@")
+	parsedEmail := email[0:pos]
+	return parsedEmail
+}
+
+func GetMailBox(email string) (results JSONMessageHeaderInbucket, err error) {
+
+	parsedEmail := ParseEmail(email)
+
+	url := fmt.Sprintf("%s%s%s", INBUCKET_HOST, INBUCKET_API, parsedEmail)
+	req, err := http.NewRequest("GET", url, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	client := &http.Client{}
+
+	resp, err := client.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	var record JSONMessageHeaderInbucket
+	if err := json.NewDecoder(resp.Body).Decode(&record); err != nil {
+		fmt.Println(err)
+		return nil, err
+	}
+	return record, nil
+}
+
+func GetMessageFromMailbox(email, id string) (results JSONMessageInbucket, err error) {
+
+	parsedEmail := ParseEmail(email)
+
+	var record JSONMessageInbucket
+
+	url := fmt.Sprintf("%s%s%s/%s", INBUCKET_HOST, INBUCKET_API, parsedEmail, id)
+	req, err := http.NewRequest("GET", url, nil)
+	if err != nil {
+		return record, err
+	}
+
+	client := &http.Client{}
+
+	resp, err := client.Do(req)
+	if err != nil {
+		return record, err
+	}
+	defer resp.Body.Close()
+
+	if err := json.NewDecoder(resp.Body).Decode(&record); err != nil {
+		fmt.Println(err)
+		return record, err
+	}
+	return record, nil
+}
+
+func DeleteMailBox(email string) (err error) {
+
+	parsedEmail := ParseEmail(email)
+
+	url := fmt.Sprintf("%s%s%s", INBUCKET_HOST, INBUCKET_API, parsedEmail)
+	req, err := http.NewRequest("DELETE", url, nil)
+	if err != nil {
+		return err
+	}
+
+	client := &http.Client{}
+
+	resp, err := client.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	return nil
+}