diff --git a/build.sh b/build.sh
index 2de0769..3ba802c 100755
--- a/build.sh
+++ b/build.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-cd "$(dirname $0)"
+cd "$(dirname "$0")"
 rm -fr build
 mkdir build
 cd build
diff --git a/clean_nvim_lsp.sh b/clean_nvim_lsp.sh
index 5c3cb44..32f1d99 100755
--- a/clean_nvim_lsp.sh
+++ b/clean_nvim_lsp.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-cd "$(dirname $0)"
+cd "$(dirname "$0")"
 # clean up command
 rm -fr CMakeCache.txt CMakeFiles Makefile cmake_install.cmake \
         compile_commands.json TombRaiderLinuxLauncher \
diff --git a/setup_nvim_lsp.sh b/setup_nvim_lsp.sh
index b98ec34..27f2a2f 100755
--- a/setup_nvim_lsp.sh
+++ b/setup_nvim_lsp.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-cd "$(dirname $0)"
+cd "$(dirname "$0")"
 # don't forget that you need to build it one time
 # and look at .neovim how to use debuger
 mkdir -p .gdb/qt5prettyprinters/
diff --git a/utils/getData.py b/utils/getData.py
index 9b3cccf..54b29af 100644
--- a/utils/getData.py
+++ b/utils/getData.py
@@ -11,20 +11,43 @@
 import logging
 from bs4 import BeautifulSoup
 from tqdm import tqdm
+from urllib.parse import urlparse
 
 # Set up logging
 logging.basicConfig(level=logging.DEBUG, format='%(asctime)s %(levelname)s:%(message)s')
 logging.getLogger("requests").setLevel(logging.DEBUG)
 
+def validate_url(url):
+    # Kontrollera att URL:en har rätt format
+    parsed_url = urlparse(url)
+
+    # Kontrollera att URL:en har ett giltigt schema och nätverksplats (domän)
+    if not all([parsed_url.scheme, parsed_url.netloc]):
+        logging.error("Invalid URL format.")
+        sys.exit(1)
+
+    # Kontrollera att protokollet är https
+    if parsed_url.scheme != "https":
+        logging.error("Only HTTPS URLs are allowed.")
+        sys.exit(1)
+
+    # Kontrollera att domänen är trle.net eller subdomäner av trle.net
+    if not parsed_url.netloc.endswith("trle.net"):
+        logging.error("URL must belong to the domain 'trle.net'.")
+        sys.exit(1)
+
+    # Om alla kontroller passerar, returnera True (eller inget om du bara vill validera)
+    return True
+
 def calculate_md5(url, cert):
     try:
         # Stream the response to handle large files
         response = requests.get(url, verify=cert, stream=True, timeout=10)
         response.raise_for_status()
-        
+
         # Get the total length of the file for the progress bar
         total_length = int(response.headers.get('content-length', 0))
-        
+
         # Initialize the MD5 hash object
         md5_hash = hashlib.md5()
 
@@ -34,19 +57,22 @@ def calculate_md5(url, cert):
                 if chunk:  # filter out keep-alive new chunks
                     md5_hash.update(chunk)
                     progress_bar.update(len(chunk))
-                    
+
         # Return the hex digest of the MD5 hash
         return md5_hash.hexdigest()
     except requests.exceptions.RequestException as e:
         logging.error(f"Failed to download {url}: {e}")
         return None
 
+url = None
+
 if __name__ == "__main__":
     if len(sys.argv) != 2:
         logging.error("Usage: python3 getData.py URL")
         sys.exit(1)
     else:
         url = sys.argv[1]
+        validate_url(url)
 
 lock_file = '/tmp/TRLE.lock'
 try:
@@ -171,9 +197,6 @@ def calculate_md5(url, cert):
     image_tag = soup.find('img', class_='border')
     screen = 'https://www.trle.net' + image_tag['src']
 
-    def get_var(var_name):
-        return globals().get(var_name, "")
-
     data = {
         "title": title,
         "author": author,
@@ -188,7 +211,7 @@ def get_var(var_name):
         "zipFileName": zipFileName,
         "zipFileMd5": zipFileMd5,
         "body": body,
-        "walkthrough": get_var("walkthrough"),
+        "walkthrough": walkthrough,
         "download_url": download_url,
     }
     if body:
diff --git a/utils/makeDatabase.py b/utils/makeDatabase.py
index 07c95a3..eb5375c 100644
--- a/utils/makeDatabase.py
+++ b/utils/makeDatabase.py
@@ -175,7 +175,7 @@ class INT NOT NULL,
 # Add Game File data
 for i in range(1, 6):
     file = f'fileList-TR{i}.json'
-    
+
     # Load data from JSON file
     with open(file, 'r') as json_file:
         file_info = json.load(json_file)
@@ -225,3 +225,4 @@ class INT NOT NULL,
 
 conn.commit()
 conn.close()
+
diff --git a/utils/updateDB_1.0.0.py b/utils/updateDB_1.0.0.py
index 6fe0f25..fe951a7 100644
--- a/utils/updateDB_1.0.0.py
+++ b/utils/updateDB_1.0.0.py
@@ -68,3 +68,4 @@ class INT NOT NULL,
 
 # Usage
 update_table_schema_and_data(arg_path)
+