From 2f4e8dc3e8563fe6a9e4f5fa306c44aaf411ef71 Mon Sep 17 00:00:00 2001
From: sudden6 <sudden6@gmx.at>
Date: Thu, 29 Dec 2016 17:09:20 +0100
Subject: [PATCH] refactor(toxpk): add class representing a Tox Public Key

---
 qtox.pro           |   2 +
 src/core/toxpk.cpp | 106 +++++++++++++++++++++++++++++++++++++++++++++
 src/core/toxpk.h   |  26 +++++++++++
 3 files changed, 134 insertions(+)
 create mode 100644 src/core/toxpk.cpp
 create mode 100644 src/core/toxpk.h

diff --git a/qtox.pro b/qtox.pro
index 35031795d..fa8f190b6 100644
--- a/qtox.pro
+++ b/qtox.pro
@@ -435,6 +435,7 @@ HEADERS  += \
     src/core/recursivesignalblocker.h \
     src/core/toxcall.h \
     src/core/toxid.h \
+    src/core/toxpk.h \
     src/friend.h \
     src/friendlist.h \
     src/group.h \
@@ -554,6 +555,7 @@ SOURCES += \
     src/core/recursivesignalblocker.cpp \
     src/core/toxcall.cpp \
     src/core/toxid.cpp \
+    src/core/toxpk.cpp \
     src/friend.cpp \
     src/friendlist.cpp \
     src/group.cpp \
diff --git a/src/core/toxpk.cpp b/src/core/toxpk.cpp
new file mode 100644
index 000000000..42011c2f9
--- /dev/null
+++ b/src/core/toxpk.cpp
@@ -0,0 +1,106 @@
+#include "toxpk.h"
+
+#include <tox/tox.h>
+
+#include <QByteArray>
+#include <QString>
+
+/**
+ * @class ToxPk
+ * @brief This class represents a Tox Public Key, which is a part of Tox ID.
+ */
+
+/**
+ * @brief The default constructor. Creates an empty Tox key.
+ */
+ToxPk::ToxPk()
+: key()
+{}
+
+/**
+ * @brief The copy constructor.
+ * @param other ToxKey to copy
+ */
+ToxPk::ToxPk(const ToxPk& other)
+: key(other.key)
+{}
+
+/**
+ * @brief Constructs a ToxKey from bytes.
+ * @param rawId The bytes to construct the ToxKey from. The lenght must be exactly
+ *              TOX_PUBLIC_KEY_SIZE, else the ToxKey will be empty.
+ */
+ToxPk::ToxPk(const QByteArray& rawId)
+{
+    if(rawId.length() == TOX_PUBLIC_KEY_SIZE)
+    {
+        key = QByteArray(rawId);
+    }
+    else
+    {
+        key = QByteArray();
+    }
+}
+
+/**
+ * @brief Constructs a ToxKey from bytes.
+ * @param rawId The bytes to construct the ToxKey from, will read exactly
+ * TOX_PUBLIC_KEY_SIZE from the specified buffer.
+ */
+ToxPk::ToxPk(const uint8_t* rawId)
+{
+    key = QByteArray(reinterpret_cast<const char*>(rawId), TOX_PUBLIC_KEY_SIZE);
+}
+
+/**
+ * @brief Compares the equality of the ToxKey.
+ * @param other ToxKey to compare.
+ * @return True if both ToxKeys are equal, false otherwise.
+ */
+bool ToxPk::operator==(const ToxPk& other) const
+{
+    return key == other.key;
+}
+
+/**
+ * @brief Compares the inequality of the ToxKey.
+ * @param other ToxKey to compare.
+ * @return True if both ToxKeys are not equal, false otherwise.
+ */
+bool ToxPk::operator!=(const ToxPk& other) const
+{
+    return key != other.key;
+}
+
+/**
+ * @brief Converts the ToxKey to a uppercase hex string.
+ * @return QString containing the hex representation of the key
+ */
+QString ToxPk::toString() const
+{
+    return key.toHex().toUpper();
+}
+
+/**
+ * @brief Returns a pointer to the raw key data.
+ * @return Pointer to the raw key data, which is exactly TOX_PUBLIC_KEY_SIZE bytes
+ *         long. Returns a nullptr if the ToxKey is empty.
+ */
+const uint8_t* ToxPk::getBytes() const
+{
+    if(key.isEmpty())
+    {
+        return nullptr;
+    }
+
+    return reinterpret_cast<const uint8_t*>(key.constData());
+}
+
+/**
+ * @brief Checks if the ToxKey contains a key.
+ * @return True if there is a key, False otherwise.
+ */
+bool ToxPk::isEmpty() const
+{
+    return key.isEmpty();
+}
diff --git a/src/core/toxpk.h b/src/core/toxpk.h
new file mode 100644
index 000000000..e05c95e41
--- /dev/null
+++ b/src/core/toxpk.h
@@ -0,0 +1,26 @@
+#ifndef TOXPK_H
+#define TOXPK_H
+
+#include <cstdint>
+#include <QByteArray>
+#include <QByteArray>
+
+class ToxPk
+{
+public:
+    ToxPk();
+    ToxPk(const ToxPk& other);
+    explicit ToxPk(const QByteArray& rawId);
+    explicit ToxPk(const uint8_t* rawId);
+
+    bool operator==(const ToxPk& other) const;
+    bool operator!=(const ToxPk& other) const;
+    QString toString() const;
+    const uint8_t* getBytes() const;
+    bool isEmpty() const;
+
+private:
+    QByteArray key;
+};
+
+#endif // TOXPK_H