fix: Add support for any type in value field instead of only string

CHANGELOG.md

@@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [unreleased]
 
+## [0.24.3] - 2024-09-24
+
+- Adds support for form field related improvements by making fields accept any type of values
+- Adds support for optional fields to properly optional
+
 ## [0.24.2] - 2024-09-03
 
 - Fixes memory leak with the JWKS cache.

recipe/emailpassword/api/implementation.go

@@ -40,7 +40,17 @@ func MakeAPIImplementation() epmodels.APIInterface {
 		var email string
 		for _, formField := range formFields {
 			if formField.ID == "email" {
-				email = formField.Value
+				// NOTE: This check will never actually fail because the parent
+				// function already checks for the type however in order to read the
+				// value as a string, it's safer to keep it here in case something changes
+				// in the future.
+				valueAsString, parseErr := withValueAsString(formField.Value, "email value needs to be a string")
+				if parseErr != nil {
+					return epmodels.GeneratePasswordResetTokenPOSTResponse{
+						GeneralError: &supertokens.GeneralErrorResponse{Message: parseErr.Error()},
+					}, nil
+				}
+				email = valueAsString
 			}
 		}
 
@@ -102,7 +112,17 @@ func MakeAPIImplementation() epmodels.APIInterface {
 		var newPassword string
 		for _, formField := range formFields {
 			if formField.ID == "password" {
-				newPassword = formField.Value
+				// NOTE: This check will never actually fail because the parent
+				// function already checks for the type however in order to read the
+				// value as a string, it's safer to keep it here in case something changes
+				// in the future.
+				valueAsString, parseErr := withValueAsString(formField.Value, "password value needs to be a string")
+				if parseErr != nil {
+					return epmodels.ResetPasswordPOSTResponse{
+						GeneralError: &supertokens.GeneralErrorResponse{Message: parseErr.Error()},
+					}, nil
+				}
+				newPassword = valueAsString
 			}
 		}
 
@@ -126,10 +146,22 @@ func MakeAPIImplementation() epmodels.APIInterface {
 		var email string
 		var password string
 		for _, formField := range formFields {
-			if formField.ID == "email" {
-				email = formField.Value
-			} else if formField.ID == "password" {
-				password = formField.Value
+			// NOTE: The check for type of password/email will never actually
+			// fail because the parent function already checks for the type
+			// however in order to read the value as a string, it's safer to
+			// keep it here in case something changes in the future.
+			if formField.ID == "email" || formField.ID == "password" {
+				valueAsString, parseErr := withValueAsString(formField.Value, fmt.Sprintf("%s value needs to be a string", formField.ID))
+				if parseErr != nil {
+					return epmodels.SignInPOSTResponse{
+						WrongCredentialsError: &struct{}{},
+					}, nil
+				}
+				if formField.ID == "email" {
+					email = valueAsString
+				} else {
+					password = valueAsString
+				}
 			}
 		}
 
@@ -164,10 +196,22 @@ func MakeAPIImplementation() epmodels.APIInterface {
 		var email string
 		var password string
 		for _, formField := range formFields {
-			if formField.ID == "email" {
-				email = formField.Value
-			} else if formField.ID == "password" {
-				password = formField.Value
+			// NOTE: The check for type of password/email will never actually
+			// fail because the parent function already checks for the type
+			// however in order to read the value as a string, it's safer to
+			// keep it here in case something changes in the future.
+			if formField.ID == "email" || formField.ID == "password" {
+				valueAsString, parseErr := withValueAsString(formField.Value, fmt.Sprintf("%s value needs to be a string", formField.ID))
+				if parseErr != nil {
+					return epmodels.SignUpPOSTResponse{
+						GeneralError: &supertokens.GeneralErrorResponse{Message: parseErr.Error()},
+					}, nil
+				}
+				if formField.ID == "email" {
+					email = valueAsString
+				} else {
+					password = valueAsString
+				}
 			}
 		}
 

recipe/emailpassword/api/utils.go

@@ -26,6 +26,16 @@ import (
 	"github.com/supertokens/supertokens-golang/supertokens"
 )
 
+func withValueAsString(emailValue interface{}, errorStr string) (string, error) {
+	// Throw error if the value is not a string
+	valueAsString, asStrOk := emailValue.(string)
+	if !asStrOk {
+		return "", fmt.Errorf(errorStr)
+	}
+
+	return valueAsString, nil
+}
+
 func validateFormFieldsOrThrowError(configFormFields []epmodels.NormalisedFormField, formFieldsRaw interface{}, tenantId string) ([]epmodels.TypeFormField, error) {
 	if formFieldsRaw == nil {
 		return nil, supertokens.BadInputError{
@@ -56,14 +66,6 @@ func validateFormFieldsOrThrowError(configFormFields []epmodels.NormalisedFormFi
 			}
 		}
 
-		if rawFormField.(map[string]interface{})["value"] != nil {
-			if _, ok := rawFormField.(map[string]interface{})["value"].(string); !ok {
-				return nil, supertokens.BadInputError{
-					Msg: "formFields must be an array of objects containing id and value of type string",
-				}
-			}
-		}
-
 		jsonformField, err := json.Marshal(rawFormField)
 		if err != nil {
 			return nil, err
@@ -74,10 +76,17 @@ func validateFormFieldsOrThrowError(configFormFields []epmodels.NormalisedFormFi
 			return nil, err
 		}
 
-		if formField.ID == "email" {
+		if formField.ID == "email" || formField.ID == "password" {
+			valueAsString, parseErr := withValueAsString(formField.Value, fmt.Sprintf("%s value must be a string", formField.ID))
+			if parseErr != nil {
+				return nil, supertokens.BadInputError{
+					Msg: parseErr.Error(),
+				}
+			}
+
 			formFields = append(formFields, epmodels.TypeFormField{
 				ID:    formField.ID,
-				Value: strings.TrimSpace(formField.Value),
+				Value: strings.TrimSpace(valueAsString),
 			})
 		} else {
 			formFields = append(formFields, epmodels.TypeFormField{
@@ -106,7 +115,16 @@ func validateFormOrThrowError(configFormFields []epmodels.NormalisedFormField, i
 			}
 		}
 
-		isValidInput := input.Value != ""
+		isValidInput := true
+		if input.Value == nil {
+			isValidInput = false
+		} else {
+			// If it is a string, it shouldn't be empty.
+			valueAsStr, err := withValueAsString(input.Value, "")
+			if err == nil && strings.TrimSpace(valueAsStr) == "" {
+				isValidInput = false
+			}
+		}
 
 		// If the field is not option and input is invalid, we should
 		// throw a validation error.