init

lib/data/users.hpp

@@ -0,0 +1,38 @@
+#pragma once
+
+#include <LittleFS.h>
+#include <webui.pb.h> // Ensure this is the version with 'bytes password_hash'
+#include <functional> // Required for std::function
+
+// This struct definition is correct and necessary.
+struct UserData {
+    char username[33];        // 32 chars + null terminator
+    uint8_t password_hash[32]; // 32-byte raw SHA-256 hash
+};
+
+class Users {
+public:
+    Users();
+    ~Users();
+
+    bool addUser(const char* username, const char* password);
+    bool deleteUser(const char* username);
+    bool updatePassword(const char* username, const char* newPassword);
+    bool userExists(const char* username) const;
+    bool checkPassword(const char* username, const char* password) const;
+    bool loadUsernamesCallback(const std::function<bool(const char*)>& callback) const;
+    size_t getUserCount();
+    void reset();
+
+private:
+    const char* filename_ = "/users.pb";
+    static constexpr size_t MAX_USERS = 5;
+    mutable size_t userCount_ = 0;
+    mutable bool initialized_ = false;
+
+    void hashPassword(const char* password, uint8_t* hash_out) const;  static bool _iterateUsers(const char* filename, const std::function<bool(UserData&)>& user_callback);
+    static bool _transformUsers(const char* src_filename, const std::function<bool(UserData&)>& transform_callback);
+};
+
+
+extern Users users;