diff --git a/src/Utils.cpp b/src/Utils.cpp
index b85d7916..ffbaecab 100644
--- a/src/Utils.cpp
+++ b/src/Utils.cpp
@@ -881,3 +881,63 @@ utils::markRoomAsDirect(QString roomid, std::vector<RoomMember> members)
});
});
}
+
+std::vector<std::string>
+utils::roomVias(const std::string &roomid)
+{
+ std::vector<std::string> vias;
+
+ {
+ auto members = cache::getMembers(roomid, 0, 100);
+ if (!members.empty()) {
+ vias.push_back(http::client()->user_id().hostname());
+ for (const auto &m : members) {
+ if (vias.size() >= 4)
+ break;
+
+ auto user_id =
+ mtx::identifiers::parse<mtx::identifiers::User>(m.user_id.toStdString());
+
+ auto server = user_id.hostname();
+ if (std::find(begin(vias), end(vias), server) == vias.end())
+ vias.push_back(server);
+ }
+ }
+ }
+
+ if (vias.empty()) {
+ auto members = cache::getMembersFromInvite(roomid, 0, 100);
+ if (!members.empty()) {
+ vias.push_back(http::client()->user_id().hostname());
+ for (const auto &m : members) {
+ if (vias.size() >= 4)
+ break;
+
+ auto user_id =
+ mtx::identifiers::parse<mtx::identifiers::User>(m.user_id.toStdString());
+
+ auto server = user_id.hostname();
+ if (std::find(begin(vias), end(vias), server) == vias.end())
+ vias.push_back(server);
+ }
+ }
+ }
+
+ if (vias.empty()) {
+ auto parents = cache::client()->getParentRoomIds(roomid);
+ for (const auto &p : parents) {
+ auto child =
+ cache::client()->getStateEvent<mtx::events::state::space::Child>(p, roomid);
+ if (child && child->content.via)
+ vias.insert(vias.end(), child->content.via->begin(), child->content.via->end());
+ }
+
+ std::sort(begin(vias), end(vias));
+ auto last = std::unique(begin(vias), end(vias));
+ vias.erase(last, end(vias));
+
+ // if (vias.size()> 3)
+ // vias.erase(begin(vias)+3, end(vias));
+ }
+ return vias;
+}
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