Merge branch 'pretzel-file-check' into 'dev'

Add check to make sure server file is downloaded before attempting to start

See merge request crafty-controller/crafty-commander!169

app/classes/shared/server.py

@@ -240,6 +240,18 @@ class Server:
 
         logger.info(f"Starting server in {self.server_path} with command: {self.server_command}")
 
+        #checks to make sure file is openable (downloaded) and exists.
+        try:
+            f = open(os.path.join(self.server_path, servers_helper.get_server_data_by_id(self.server_id)['executable']), "r", encoding="utf-8")
+            f.close()
+
+        except:
+            if user_id:
+                websocket_helper.broadcast_user(user_id, 'send_start_error',{
+                    'error': translation.translate('error', 'not-downloaded', user_lang)
+                })
+            return
+
         if not helper.is_os_windows() and servers_helper.get_server_type_by_id(self.server_id) == "minecraft-bedrock":
             logger.info(f"Bedrock and Unix detected for server {self.name}. Switching to appropriate execution string")
             my_env = os.environ

app/translations/en_EN.json

@@ -17,7 +17,8 @@
         "eulaTitle": "Agree To EULA",
         "eulaMsg": "You must agree to the EULA. A copy of the Mojang EULA is linked under this message.",
         "eulaAgree": "Do you agree?",
-        "noJava": "Server {} failed to start with error code: We have detected Java is not installed. Please install java then start the server."
+        "noJava": "Server {} failed to start with error code: We have detected Java is not installed. Please install java then start the server.",
+        "not-downloaded": "We can't seem to find your executable file. Has it finished downloading? Are the permissions set to executable?"
     },
     "404": {
         "contact": "Contact Crafty Control Support via Discord",