Replaced hardcoded message errors in email validation

Added some translation string
Improved the way the emails and usernames are checked (less conditions)
Minor fix on clear error functions

service/user/cookie_helper.go

@@ -90,6 +90,7 @@ func SetCookieHandler(w http.ResponseWriter, r *http.Request, email string, pass
 	messages := msg.GetMessages(r)
 	// search by email or username
 	isValidEmail := formStruct.EmailValidation(email, messages)
+	messages.ClearErrors("email") // We need to clear the error added on messages
 	if isValidEmail {
 		if db.ORM.Where("email = ?", email).First(&user).RecordNotFound() {
 			return http.StatusNotFound, errors.New("User not found")

service/user/form/form_validator.go

@@ -18,8 +18,10 @@ func EmailValidation(email string, mes *msg.Messages) bool {
 		if exp.MatchString(email) {
 			return true
 		}
+		mes.AddErrorT("email", "email_not_valid")
+		return false
 	}
-	mes.AddError("email", "Email Address is not valid")
+	mes.AddError("errors", "Regexp couldn't be parsed!")
 	return false
 }
 
@@ -28,13 +30,13 @@ func ValidateUsername(username string, mes *msg.Messages) bool {
 	exp, errorRegex := regexp.Compile(usernameRegex)
 	if regexpCompiled := log.CheckError(errorRegex); regexpCompiled {
 		if exp.MatchString(username) {
-			mes.AddError("username", "Username contains illegal characters")
+			mes.AddErrorT("username", "username_illegal")
 			return false
 		}
-	} else {
-		return false
+		return true
 	}
-	return true
+	mes.AddError("errors", "Regexp couldn't be parsed!")
+	return false
 }
 
 // IsAgreed : Check if terms and conditions are valid

translations/en-us.all.json

@@ -1214,5 +1214,13 @@
   {
     "id": "report_msg",
     "translation": "The torrent #%s has been reported!"
+  },
+  {
+    "id": "email_not_valid",
+    "translation": "Email Address is not valid!"
+  },
+  {
+    "id": "username_illegal",
+    "translation": "Username contains illegal characters!"
   }
 ]

util/messages/messages.go

@@ -87,15 +87,27 @@ func (mes *Messages) AddInfoT(name string, id string) {
 	mes.AddInfo(name, mes.T(id))
 }
 
-// ClearErrors : Erase all errors in messages
-func (mes *Messages) ClearErrors() {
+// ClearAllErrors : Erase all errors in messages
+func (mes *Messages) ClearAllErrors() {
+	mes.Errors = nil
+	mes.setMessagesInContext()
+}
+
+// ClearAllInfos : Erase all infos in messages
+func (mes *Messages) ClearAllInfos() {
 	mes.Infos = nil
 	mes.setMessagesInContext()
 }
 
+// ClearErrors : Erase all errors in messages
+func (mes *Messages) ClearErrors(name string) {
+	mes.Errors[name] = nil
+	mes.setMessagesInContext()
+}
+
 // ClearInfos : Erase all infos in messages
-func (mes *Messages) ClearInfos() {
-	mes.Errors = nil
+func (mes *Messages) ClearInfos(name string) {
+	mes.Infos[name] = nil
 	mes.setMessagesInContext()
 }