add User class

1 files changed, 54 insertions, 0 deletions

diff --git a/src/user.h b/src/user.h
new file mode 100644
index 0000000..6826ed4
--- /dev/null
+++ b/src/user.h
@@ -0,0 +1,54 @@
+#pragma once
+
+#include <QString>
+
+// TODO: tests
+// - empty fields
+// - too long fields (use arrays instead of QByteArray?)
+// - try to break salt/hash fields
+
+// TODO: make all public fields private
+class User
+{
+public:
+    /*!
+     * \brief User - create user with given `login` and `password`. `salt` and
+     * `passwordHash` will be generated and stored instead of real `password`.
+     * Will *not* be committed to db automatically.
+     * \param login - max len is 32
+     * \param password - max len is 32
+     */
+    explicit User(const QString &login, const QString &password);
+
+public:
+    /*!
+     * \brief getDbId - check if user with corresponding `link` exists in db
+     * and return db id if any
+     * \return id on success, 0 otherwise
+     */
+    int getDbId();
+
+    /*!
+     * \brief createInDb - create user in db
+     * \return new user id on success, 0 otherwise
+     */
+    int createInDb();
+
+    /*!
+     * \brief getOrInsertDbId - get existing user id or try to create a new
+     * user and get its id
+     * \return existing or new user id on success, 0 otherwise
+     */
+    int getOrInsertDbId();
+
+    bool verifyPassword(const QString &password);
+
+public:
+    int id{0};
+    QString login;
+    QByteArray salt;
+    QByteArray passwordHash;
+
+private:
+    QByteArray hashPassword(const QString &password);
+};