create compatibility layer for mysql-admutils commands

src/core/common.rs

@@ -62,7 +62,30 @@ pub fn create_user_group_matching_regex(user: &User) -> String {
     }
 }
 
-pub fn validate_prefix_for_user<'a>(name: &'a str, user: &User) -> anyhow::Result<&'a str> {
+pub fn validate_name_token(name: &str) -> anyhow::Result<()> {
+    if name.is_empty() {
+        anyhow::bail!("Database name cannot be empty.");
+    }
+
+    if name.len() > 64 {
+        anyhow::bail!("Database name is too long. Maximum length is 64 characters.");
+    }
+
+    if !name.chars().all(|c| c.is_ascii_alphanumeric() || c == '_' || c == '-') {
+        anyhow::bail!(
+            indoc! {r#"
+              Invalid characters in name: '{}'
+
+              Only A-Z, a-z, 0-9, _ (underscore) and - (dash) are permitted.
+            "#},
+            name
+        );
+    }
+
+    Ok(())
+}
+
+pub fn validate_ownership_by_user_prefix<'a>(name: &'a str, user: &User) -> anyhow::Result<&'a str> {
     let user_groups = get_unix_groups(user)?;
 
     let mut split_name = name.split('_');