Auth subsystem done

system/auth_system.cpp

@@ -0,0 +1,56 @@
+#include "auth_system.h"
+
+
+const user_entity& auth_system::get_user(const QString &login, bool &success) {
+    user_entity *out;
+
+    success = false;
+    for (user_entity &item : this->_users) {
+        if (item.login() == login) {
+            success = true;
+            out = &item;
+            break;
+        }
+    }
+
+    return *out;
+}
+
+bool auth_system::remove_user(const QString &login) {
+    auto vit = this->_users.begin();
+    for (; vit != this->_users.end(); vit++) {
+        if ((*vit).login() == login) {
+            this->_users.erase(vit);
+            return true;
+        }
+    }
+
+    return false;
+}
+
+bool auth_system::register_user(const QString &login, const QString &password, UserRole role) {
+    bool exists = false;
+    this->get_user(login, exists);
+    if (!exists) {
+        this->_users.push_back(user_entity(login, password, role));
+        return true;
+    }
+
+    return false;
+}
+
+void auth_system::init(QDataStream &stream) {
+    int icnt;
+    stream >> icnt;
+    this->_users.resize(icnt);
+    for (int i = 0; i < icnt; i++) {
+        this->_users[i].deserialize(stream);
+    }
+}
+
+void auth_system::shutdown(QDataStream &stream) {
+    stream << this->_users.size();
+    for (auto &item : this->_users) {
+        item.serialize(stream);
+    }
+}