update regex for name validation

ee/tabby-schema/src/schema/auth.rs

@@ -290,7 +290,7 @@ pub struct UpdateUserNameInput {
     #[validate(regex(
         code = "name",
         path = "crate::schema::constants::USERNAME_REGEX",
-        message = "Invalid name, only alphabet and space character are allowed, and it must start and end with alphabet"
+        message = "Invalid name, name may contain numbers or special characters which are not supported"
     ))]
     pub name: String,
 }

ee/tabby-schema/src/schema/constants.rs

@@ -3,5 +3,41 @@ use regex::Regex;
 
 lazy_static! {
     pub static ref REPOSITORY_NAME_REGEX: Regex = Regex::new("^[a-zA-Z][\\w.-]+$").unwrap();
-    pub static ref USERNAME_REGEX: Regex = Regex::new("^[A-Za-z][A-Za-z ]*[A-Za-z]$").unwrap();
+    pub static ref USERNAME_REGEX: Regex = Regex::new(
+        r"^[^0-9±!@£$%^&*_+§¡€#¢¶•ªº«\\/<>?:;|=.,]{2,20}$").unwrap();
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_username_regex() {
+        let test_cases = vec![
+            ("John", true), // English name
+            ("Müller", true), // German name
+            ("Jørgensen", true), // Danish name
+            ("李雷", true), // Chinese name
+            ("あきは", true), // Japanese name
+            ("김민수", true), // Korean name
+            ("Алексей", true), // Russian name
+            ("José", true), // Spanish names
+            ("علی", true), // Iranian names
+            // Edge cases
+            ("", false), // Empty string
+            ("JohnDoeIsAReallyLongName", false), // More than 20 characters
+            ("John!", false), // Invalid character '!'
+            ("José@", false), // Invalid character '@'
+            ("12345", false), // Invalid character Numbers
+            ("John_Doe", false), // Underscore character
+            ("Anna-Marie", true), // Hyphen character
+            ("O'Connor", true), // Apostrophe
+            ("李@伟", false)
+        ];
+
+        for (name, expected) in test_cases {
+            let result = USERNAME_REGEX.is_match(name);
+            assert_eq!(result, expected, "Failed for name: {}", name);
+        }
+    }
 }