diff --git a/src/provider/core/provider.h b/src/provider/core/provider.h
--- a/src/provider/core/provider.h
+++ b/src/provider/core/provider.h
@@ -182,6 +182,12 @@
      */
     QVector<AbstractDataSource*> dataSources() const;
 
+    /*! Returns a data source with matched @p id
+     * @param id data source unique identifier
+     * @return pointer to found data source or nullptr if data source is not found
+     */
+    AbstractDataSource *findDataSource(const QString &id) const;
+
     /*! Returns the minimum time between two surveys in days.
      *  The default is -1 (no surveys enabled).
      */
diff --git a/src/provider/core/provider.cpp b/src/provider/core/provider.cpp
--- a/src/provider/core/provider.cpp
+++ b/src/provider/core/provider.cpp
@@ -504,6 +504,7 @@
         timeSrc->setProvider(d);
 
     d->dataSources.push_back(source);
+    d->dataSourcesById[source->id()] = source;
 
     auto s = d->makeSettings();
     s->beginGroup(QStringLiteral("Source-") + source->id());
@@ -515,6 +516,12 @@
     return d->dataSources;
 }
 
+AbstractDataSource *Provider::findDataSource(const QString &id) const
+{
+    auto it = d->dataSourcesById.find(id);
+    return it != std::end(d->dataSourcesById) ? *it : nullptr;
+}
+
 int Provider::surveyInterval() const
 {
     return d->surveyInterval;
diff --git a/src/provider/core/provider_p.h b/src/provider/core/provider_p.h
--- a/src/provider/core/provider_p.h
+++ b/src/provider/core/provider_p.h
@@ -100,6 +100,7 @@
     int encouragementInterval;
 
     QVector<AbstractDataSource*> dataSources;
+    QHash<QString, AbstractDataSource*> dataSourcesById;
 };
 }