fix hashing alg for gravatar avatar fetching

.env.example

@@ -3,5 +3,5 @@
 #
 
 APP_NAME=litter-go
-APP_VERSION=0.35.11
+APP_VERSION=0.35.12
 GOLANG_VERSION=1.22

api/swagger.json

@@ -13,7 +13,7 @@
             "name": "MIT",
             "url": "https://github.com/krustowski/litter-go/blob/master/LICENSE"
         },
-        "version": "0.35.11"
+        "version": "0.35.12"
     },
     "host": "littr.n0p.cz",
     "basePath": "/api/v1",

pkg/backend/db/migration.go

@@ -1,8 +1,9 @@
 package db
 
 import (
-	"crypto/md5"
-	"encoding/hex"
+	"crypto/sha256"
+	//"encoding/hex"
+	"fmt"
 	"net/http"
 	"strconv"
 	"strings"
@@ -183,10 +184,15 @@ func GetGravatarURL(emailInput string, channel chan string) string {
 	email := strings.ToLower(emailInput)
 	size := 150
 
+	sha := sha256.New()
+	sha.Write([]byte(email))
+
+	hashedStringEmail := fmt.Sprintf("%x", sha.Sum(nil))
+
 	// hash the emailInput
-	byteEmail := []byte(email)
-	hashEmail := md5.Sum(byteEmail)
-	hashedStringEmail := hex.EncodeToString(hashEmail[:])
+	//byteEmail := []byte(email)
+	//hashEmail := md5.Sum(byteEmail)
+	//hashedStringEmail := hex.EncodeToString(hashEmail[:])
 
 	url := "https://www.gravatar.com/avatar/" + hashedStringEmail + "&s=" + strconv.Itoa(size)
 

pkg/backend/router.go

@@ -1,5 +1,5 @@
 // @title		litter-go
-// @version	 	0.35.11
+// @version	 	0.35.12
 // @description		nanoblogging platform as PWA built on go-app framework
 // @termsOfService	https://littr.eu/tos