Merge pull request #127 from anonymort/feat/lemmy-validator

feat: add Lemmy username validator

Author: kaifcodec

user_scanner/user_scan/community/lemmy.py

@@ -0,0 +1,30 @@
+import re
+from user_scanner.core.orchestrator import status_validate
+from user_scanner.core.result import Result
+
+
+def validate_lemmy(user: str) -> Result:
+    """Check username availability on Lemmy (lemmy.world instance)"""
+
+    # Lemmy username rules: 3-20 chars, alphanumeric and underscores only
+    if not (3 <= len(user) <= 20):
+        return Result.error("Length must be 3-20 characters")
+
+    if not re.match(r'^[a-zA-Z0-9_]+$', user):
+        return Result.error("Only letters, numbers, and underscores allowed")
+
+    url = f"https://lemmy.world/api/v3/user?username={user}"
+
+    return status_validate(url, [400, 404], 200, timeout=5.0)
+
+
+if __name__ == "__main__":
+    user = input("Username?: ").strip()
+    result = validate_lemmy(user)
+
+    if result == 1:
+        print("Available!")
+    elif result == 0:
+        print("Unavailable!")
+    else:
+        print(f"Error occurred! Reason: {result.get_reason()}")