[release-11.5.2] IAM: log error when malformed json arrays are found in SSO configs (#100649)

IAM: Log error when malformed json arrays are found in SSO configs (#99896)

(cherry picked from commit eeadb7e771)

pkg/util/strings.go

@@ -33,9 +33,18 @@ func stringsFallback(vals ...string) string {
 
 // SplitString splits a string and returns a list of strings. It supports JSON list syntax and strings separated by commas or spaces.
 // It supports quoted strings with spaces, e.g. "foo bar", "baz".
+// It will return an empty list if it fails to parse the string.
 func SplitString(str string) []string {
+	result, _ := SplitStringWithError(str)
+	return result
+}
+
+// SplitStringWithError splits a string and returns a list of strings. It supports JSON list syntax and strings separated by commas or spaces.
+// It supports quoted strings with spaces, e.g. "foo bar", "baz".
+// It returns an error if it cannot parse the string.
+func SplitStringWithError(str string) ([]string, error) {
 	if len(str) == 0 {
-		return []string{}
+		return []string{}, nil
 	}
 
 	// JSON list syntax support
@@ -43,9 +52,9 @@ func SplitString(str string) []string {
 		var res []string
 		err := json.Unmarshal([]byte(str), &res)
 		if err != nil {
-			return []string{}
+			return []string{}, fmt.Errorf("incorrect format: %s", str)
 		}
-		return res
+		return res, nil
 	}
 
 	matches := stringListItemMatcher.FindAllString(str, -1)
@@ -55,7 +64,7 @@ func SplitString(str string) []string {
 		result[i] = strings.Trim(match, "\"")
 	}
 
-	return result
+	return result, nil
 }
 
 // GetAgeString returns a string representing certain time from years to minutes.