Data File Encryption

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "submodules/ProjectTox-Core"]
 	path = submodules/ProjectTox-Core
 	url = https://github.com/irungentoo/ProjectTox-Core.git
+[submodule "submodules/ProjectTox-libtoxdata"]
+	path = submodules/ProjectTox-libtoxdata
+	url = https://github.com/jencka/ProjectTox-libtoxdata

.travis.yml

@@ -22,6 +22,7 @@ before_install:
   - sudo make install
   - sudo ldconfig
   - cd ..
+  - git submodule update --init --recursive
 
 script:
   - ~/Qt5.2.0/5.2.0/gcc_64/bin/qmake -v
@@ -35,4 +36,4 @@ notifications:
       - "chat.freenode.net#Tox-Qt-GUI"
     on_success: always
     on_failure: always
-
+

projectfiles/QtCreator/TOX-Qt-GUI.pro

@@ -35,7 +35,10 @@ TEMPLATE = app
 
 CONFIG += c++11
 
-INCLUDEPATH += ../../src/ ../../submodules/ProjectTox-Core/toxcore/
+INCLUDEPATH += \
+    ../../src/ ../../submodules/ProjectTox-Core/toxcore/ \
+    ../../submodules/ProjectTox-libtoxdata/ \
+    ../../submodules/ProjectTox-libtoxdata/submodules/scrypt-jane/
 win32:INCLUDEPATH += ../../libs/sodium/include/
 macx:INCLUDEPATH += /usr/local/include
 
@@ -50,6 +53,11 @@ win32 {
 }
 
 win32:DEFINES += WIN32
+DEFINES += SCRYPT_SALSA SCRYPT_SHA256
+
+contains(QMAKE_CC, clang) {
+    QMAKE_CFLAGS += -no-integrated-as
+}
 
 SOURCES += \
     ../../src/main.cpp \
@@ -92,7 +100,8 @@ SOURCES += \
     ../../src/frienditemdelegate.cpp \
     ../../src/editablelabelwidget.cpp \
     ../../src/esclineedit.cpp \
-    ../../src/copyableelidelabel.cpp
+    ../../src/copyableelidelabel.cpp \
+    ../../src/profile.cpp
 
 HEADERS  += \
     ../../src/mainwindow.hpp \
@@ -135,7 +144,8 @@ HEADERS  += \
     ../../src/frienditemdelegate.hpp \
     ../../src/editablelabelwidget.hpp \
     ../../src/esclineedit.hpp \
-    ../../src/copyableelidelabel.hpp
+    ../../src/copyableelidelabel.hpp \
+    ../../src/profile.hpp
 
 SOURCES += \
     ../../submodules/ProjectTox-Core/toxcore/DHT.c \
@@ -166,6 +176,14 @@ HEADERS  += \
     ../../submodules/ProjectTox-Core/toxcore/group_chats.h \
     ../../submodules/ProjectTox-Core/toxcore/assoc.h
 
+SOURCES += \
+    ../../submodules/ProjectTox-libtoxdata/tox_data.c \
+    ../../submodules/ProjectTox-libtoxdata/submodules/scrypt-jane/scrypt-jane.c
+
+HEADERS += \
+    ../../submodules/ProjectTox-libtoxdata/tox_data.h \
+    ../../submodules/ProjectTox-libtoxdata/submodules/scrypt-jane/scrypt-jane.h
+
 RESOURCES += \
     ../../resources/resources.qrc
 

src/profile.cpp

@@ -0,0 +1,89 @@
+#include "profile.hpp"
+
+Profile::Profile(QString filePath)
+{
+    pData = data_init_load((char*)filePath.toLocal8Bit().constData());
+    if (pData == NULL)
+        brokenProfile();
+}
+
+Profile::Profile(QString filePath, QString name, QString password)
+{
+    pData = data_init_new((char*)filePath.toLocal8Bit().constData(), (uint8_t*)name.toUtf8().constData(), (uint8_t*)password.toUtf8().constData());
+    if (pData == NULL)
+        brokenProfile();
+}
+
+Profile::~Profile()
+{
+    if(!pData->locked)
+        data_lock(pData);
+    data_close(pData);
+}
+
+int Profile::unlock(QString password)
+{
+    return data_unlock(pData, (uint8_t*)password.toUtf8().constData());
+}
+
+void Profile::changeName(QString newName)
+{
+    free(pData->name);
+    pData->name = (uint8_t*)malloc(newName.toUtf8().size());
+    memcpy(pData->name, newName.toUtf8().constData(), newName.toUtf8().size());
+}
+
+QString Profile::getName()
+{
+    return QString::fromLocal8Bit((const char*)pData->name);
+}
+
+QDateTime Profile::getSaveTime()
+{
+    return QDateTime::fromMSecsSinceEpoch(pData->time_saved);
+}
+
+bool Profile::isLocked()
+{
+    return pData->locked;
+}
+
+int Profile::lock()
+{
+    return data_lock(pData);
+}
+
+int Profile::changePassword(QString oldPassword, QString newPassword)
+{
+    return data_change_key(pData, (uint8_t*)oldPassword.toUtf8().constData(), (uint8_t*)newPassword.toUtf8().constData());
+}
+
+int Profile::loadMessenger(Tox *tox)
+{
+    size_t size = data_messenger_size(pData);
+    uint8_t buffer[size];
+    data_read_messenger(pData, buffer);
+    if(tox_load(tox, buffer, size) != 0)
+        return -1;
+    return 0;
+}
+
+int Profile::saveMessenger(Tox *tox)
+{
+    size_t size = tox_size(tox);
+    uint8_t buffer[size];
+    tox_save(tox, buffer);
+    return data_write_messenger(pData, buffer, size);
+}
+
+int Profile::flush()
+{
+    return data_flush(pData);
+}
+
+void Profile::brokenProfile()
+{
+    //Create a profile that won't be unlocked. This will probably never be called.
+    QString path = QDir::tempPath() + "/" + QCoreApplication::applicationName() + "." + QString::number(qrand());
+    pData = data_init_new((char*)path.toLocal8Bit().constData(), (uint8_t*)"Broken Profile!", (uint8_t*)"don'tlogin");
+}

src/profile.hpp

@@ -0,0 +1,67 @@
+#ifndef PROFILE_H
+#define PROFILE_H
+
+#include <tox.h>
+#include <util.h>
+#include <sodium.h>
+#include <tox_data.h>
+
+#include <QObject>
+#include <QFile>
+#include <QDateTime>
+#include <QDir>
+#include <QCoreApplication>
+
+class Profile : public QObject
+{
+    Q_OBJECT
+public:
+    /* See tox_data.h for full documentation on function return values & behavior. */
+
+    /* Loads a profile from the given path.
+     * Throws an exception (0) if the profile can't be loaded.
+     */
+    Profile(QString filePath);
+    /* Creates a new profile.
+     * This profile isn't saved to disk until lock() or save() are called.
+     */
+    Profile(QString filePath, QString name, QString password);
+    ~Profile();
+
+    int unlock(QString password);
+
+    /* Changes the saved name for the profile. */
+    void changeName(QString newName);
+    /* Returns the profile's name. */
+    QString getName();
+    /* Returns the last date that the profile was saved. */
+    QDateTime getSaveTime();
+
+    /* Checks if the profile is locked. */
+    bool isLocked();
+
+    /* ------------- REQUIRES UNLOCKING ------------- */
+
+    int lock();
+    int changePassword(QString oldPassword, QString newPassword);
+
+    /* Loads the given messenger
+     *
+     * returns 0 if success
+     */
+    int loadMessenger(Tox *tox);
+
+    /* Saves the given messenger
+     *
+     * returns 0 if success
+     */
+    int saveMessenger(Tox *tox);
+
+    int flush();
+
+private:
+    void brokenProfile();
+    tox_data *pData;
+};
+
+#endif // PROFILE_H