Updated multiple functions across the codebase to use the `get_server_by_ip` method instead of iterating over server lists. This change simplifies the code, improves readability, and reduces potential errors. Adjusted SQL queries to remove unnecessary conditions and parameters related to master servers.
Refactored SSH credential handling to better support shared credentials and improve code readability. Simplified WAF mode changes by switching from hostname to server ID, enhancing reliability. Updated various templates and functions to align with these changes.
The commit refactors the server-side modules of the Roxy-WI web interface to use JSON-based APIs for improved data exchange. Specifically, methods for user, group and SSH management have been updated to accept and return JSON data. Simultaneously, error handling is improved to give more informative responses instead of plain strings. The client-side JavaScript code is also refactored to accommodate these changes. Additionally, some minor corrections are made in the UI templates.