Add login function

TODO ws request auth

Signed-off-by: YoungSoo Shin <shinys000114@gmail.com>

main/service/auth.h

@@ -0,0 +1,28 @@
+#ifndef AUTH_H
+#define AUTH_H
+
+#include <stdbool.h>
+#include "esp_err.h"
+#include "esp_http_server.h"
+
+#define MAX_TOKENS 4
+#define TOKEN_LENGTH 33 // 32 characters + null terminator
+
+// Function to initialize the authentication module
+void auth_init(void);
+
+// Function to generate a new token
+char* auth_generate_token(void);
+
+// Function to validate a token
+bool auth_validate_token(const char* token);
+
+// Function to invalidate a token (e.g., on logout)
+void auth_invalidate_token(const char* token);
+
+// Function to clean up expired tokens (if any)
+void auth_cleanup_expired_tokens(void);
+
+esp_err_t api_auth_check(httpd_req_t* req);
+
+#endif // AUTH_H