Initial ping-pong with TDLib :)

src/tdlibreceiver.cpp

@@ -52,6 +52,10 @@ void TDLibReceiver::processUpdateOption(const QVariantMap &receivedInformation)
         QString detectedVersion = receivedInformation.value("value").toMap().value("value").toString();
         qDebug() << "[TDLibReceiver] TD Lib version detected: " << detectedVersion;
         emit versionDetected(detectedVersion);
+    } else {
+        QVariant currentValue = receivedInformation.value("value").toMap().value("value");
+        qDebug() << "[TDLibReceiver] Option updated: " << currentOption << currentValue;
+        emit optionUpdated(currentOption, currentValue);
     }
 }
 

src/tdlibreceiver.h

@@ -20,6 +20,7 @@ public:
 signals:
     void versionDetected(const QString &version);
     void authorizationStateChanged(const QString &authorizationState);
+    void optionUpdated(const QString &optionName, const QVariant &optionValue);
 
 private:
     void *tdLibClient;

src/tdlibwrapper.cpp

@@ -18,6 +18,11 @@
 */
 
 #include "tdlibwrapper.h"
+#include "tdlibsecrets.h"
+#include <QDir>
+#include <QLocale>
+#include <QSysInfo>
+#include <QSettings>
 
 TDLibWrapper::TDLibWrapper(QObject *parent) : QObject(parent)
 {
@@ -25,8 +30,15 @@ TDLibWrapper::TDLibWrapper(QObject *parent) : QObject(parent)
     this->tdLibClient = td_json_client_create();
     this->tdLibReceiver = new TDLibReceiver(this->tdLibClient, this);
 
+    QString tdLibDatabaseDirectoryPath = QStandardPaths::writableLocation(QStandardPaths::AppDataLocation) + "/tdlib";
+    QDir tdLibDatabaseDirectory(tdLibDatabaseDirectoryPath);
+    if (!tdLibDatabaseDirectory.exists()) {
+        tdLibDatabaseDirectory.mkpath(tdLibDatabaseDirectoryPath);
+    }
+
     connect(this->tdLibReceiver, SIGNAL(versionDetected(QString)), this, SLOT(handleVersionDetected(QString)));
     connect(this->tdLibReceiver, SIGNAL(authorizationStateChanged(QString)), this, SLOT(handleAuthorizationStateChanged(QString)));
+    connect(this->tdLibReceiver, SIGNAL(optionUpdated(QString, QVariant)), this, SLOT(handleOptionUpdated(QString, QVariant)));
 
     this->tdLibReceiver->start();
 }
@@ -41,12 +53,19 @@ TDLibWrapper::~TDLibWrapper()
     td_json_client_destroy(this->tdLibClient);
 }
 
+void TDLibWrapper::sendRequest(const QVariantMap &requestObject)
+{
+    qDebug() << "[TDLibWrapper] Sending request to TD Lib, object type name: " << requestObject.value("@type").toString();
+    QJsonDocument requestDocument = QJsonDocument::fromVariant(requestObject);
+    td_json_client_send(this->tdLibClient, requestDocument.toJson().constData());
+}
+
 QString TDLibWrapper::getVersion()
 {
     return this->version;
 }
 
-QString TDLibWrapper::getAuthorizationState()
+TDLibWrapper::AuthorizationState TDLibWrapper::getAuthorizationState()
 {
     return this->authorizationState;
 }
@@ -59,7 +78,89 @@ void TDLibWrapper::handleVersionDetected(const QString &version)
 
 void TDLibWrapper::handleAuthorizationStateChanged(const QString &authorizationState)
 {
-    this->authorizationState = authorizationState;
-    emit authorizationStateChanged(authorizationState);
+        if (authorizationState == "authorizationStateClosed") {
+        this->authorizationState = AuthorizationState::Closed;
+    }
+
+    if (authorizationState == "authorizationStateClosing") {
+        this->authorizationState = AuthorizationState::Closing;
+    }
+
+    if (authorizationState == "authorizationStateLoggingOut") {
+        this->authorizationState = AuthorizationState::LoggingOut;
+    }
+
+    if (authorizationState == "authorizationStateReady") {
+        this->authorizationState = AuthorizationState::Ready;
+    }
+
+    if (authorizationState == "authorizationStateWaitCode") {
+        this->authorizationState = AuthorizationState::WaitCode;
+    }
+
+    if (authorizationState == "authorizationStateWaitEncryptionKey") {
+        this->setEncryptionKey();
+        this->authorizationState = AuthorizationState::WaitEncryptionKey;
+    }
+
+    if (authorizationState == "authorizationStateWaitOtherDeviceConfirmation") {
+        this->authorizationState = AuthorizationState::WaitOtherDeviceConfirmation;
+    }
+
+    if (authorizationState == "authorizationStateWaitPassword") {
+        this->authorizationState = AuthorizationState::WaitPassword;
+    }
+
+    if (authorizationState == "authorizationStateWaitPhoneNumber") {
+        this->authorizationState = AuthorizationState::WaitPhoneNumber;
+    }
+
+    if (authorizationState == "authorizationStateWaitRegistration") {
+        this->authorizationState = AuthorizationState::WaitRegistration;
+    }
+
+    if (authorizationState == "authorizationStateWaitTdlibParameters") {
+        this->setInitialParameters();
+        this->authorizationState = AuthorizationState::WaitTdlibParameters;
+    }
+
+    emit authorizationStateChanged(this->authorizationState);
+
+}
+
+void TDLibWrapper::handleOptionUpdated(const QString &optionName, const QVariant &optionValue)
+{
+    this->options.insert(optionName, optionValue);
+    emit optionUpdated(optionName, optionValue);
+}
+
+void TDLibWrapper::setInitialParameters()
+{
+    qDebug() << "[TDLibWrapper] Sending initial parameters to TD Lib";
+    QVariantMap requestObject;
+    requestObject.insert("@type", "setTdlibParameters");
+    QVariantMap initialParameters;
+    initialParameters.insert("api_id", TDLIB_API_ID);
+    initialParameters.insert("api_hash", TDLIB_API_HASH);
+    initialParameters.insert("database_directory", QStandardPaths::writableLocation(QStandardPaths::AppDataLocation) + "/tdlib");
+    initialParameters.insert("use_message_database", true);
+    initialParameters.insert("use_secret_chats", false);
+    initialParameters.insert("system_language_code", QLocale::system().name());
+    QSettings hardwareSettings("/etc/hw-release", QSettings::NativeFormat);
+    initialParameters.insert("device_model", hardwareSettings.value("NAME", "Unknown Mobile Device").toString());
+    initialParameters.insert("system_version", QSysInfo::prettyProductName());
+    initialParameters.insert("application_version", "0.1");
+    requestObject.insert("parameters", initialParameters);
+    this->sendRequest(requestObject);
+}
+
+void TDLibWrapper::setEncryptionKey()
+{
+    qDebug() << "[TDLibWrapper] Setting database encryption key";
+    QVariantMap requestObject;
+    requestObject.insert("@type", "checkDatabaseEncryptionKey");
+    // see https://github.com/tdlib/td/issues/188#issuecomment-379536139
+    requestObject.insert("encryption_key", "");
+    this->sendRequest(requestObject);
 }
 

src/tdlibwrapper.h

@@ -4,6 +4,8 @@
 #include <QCoreApplication>
 #include <QObject>
 #include <QDebug>
+#include <QJsonDocument>
+#include <QStandardPaths>
 #include <td/telegram/td_json_client.h>
 #include "tdlibreceiver.h"
 
@@ -14,23 +16,43 @@ public:
     explicit TDLibWrapper(QObject *parent = nullptr);
     ~TDLibWrapper();
 
+    enum AuthorizationState {
+        Closed,
+        Closing,
+        LoggingOut,
+        Ready,
+        WaitCode,
+        WaitEncryptionKey,
+        WaitOtherDeviceConfirmation,
+        WaitPassword,
+        WaitPhoneNumber,
+        WaitRegistration,
+        WaitTdlibParameters
+    };
+
+    Q_INVOKABLE void sendRequest(const QVariantMap &requestObject);
     Q_INVOKABLE QString getVersion();
-    Q_INVOKABLE QString getAuthorizationState();
+    Q_INVOKABLE TDLibWrapper::AuthorizationState getAuthorizationState();
 
 signals:
     void versionDetected(const QString &version);
-    void authorizationStateChanged(const QString &authorizationState);
+    void authorizationStateChanged(const TDLibWrapper::AuthorizationState &authorizationState);
+    void optionUpdated(const QString &optionName, const QVariant &optionValue);
 
 public slots:
     void handleVersionDetected(const QString &version);
     void handleAuthorizationStateChanged(const QString &authorizationState);
+    void handleOptionUpdated(const QString &optionName, const QVariant &optionValue);
 
 private:
     void *tdLibClient;
     TDLibReceiver *tdLibReceiver;
-
     QString version;
-    QString authorizationState;
+    TDLibWrapper::AuthorizationState authorizationState;
+    QVariantMap options;
+
+    void setInitialParameters();
+    void setEncryptionKey();
 
 };