Add method to get user lowest permission level

2 files changed, 19 insertions, 0 deletions

diff --git a/src/Database.cpp b/src/Database.cpp
index a05aae6..564b3d6 100644
--- a/src/Database.cpp
+++ b/src/Database.cpp
@@ -714,6 +714,11 @@ namespace odhtdb
     {
         return databaseStorage.getUserGroups(nodeHash, userPublicKey);
     }
+
+    int Database::getUserLowestPermissionLevel(const Hash &nodeHash, const Signature::PublicKey &userPublicKey) const
+    {
+        return databaseStorage.getUserLowestPermissionLevel(nodeHash, userPublicKey);
+    }
     
     std::future<size_t> Database::receiveCustomMessage(const dht::InfoHash &receiveMessageKey, ReceiveCustomMessageCallbackFunc callbackFunc)
     {
diff --git a/src/DatabaseStorage.cpp b/src/DatabaseStorage.cpp
index 407aa5c..9398254 100644
--- a/src/DatabaseStorage.cpp
+++ b/src/DatabaseStorage.cpp
@@ -825,6 +825,20 @@ namespace odhtdb
                                                              { DataView(nodeHash.getData(), nodeHash.getSize()), DataView((void*)userPublicKey.getData(), userPublicKey.getSize()), groupToAddPermissionLevel, (i64)PermissionType::ADD_USER_SAME_LEVEL, groupToAddPermissionLevel, (i64)PermissionType::ADD_USER_HIGHER_LEVEL });
         return queryCreatorGroupWithRightsToAddUserToGroup.next();
     }
+
+    int DatabaseStorage::getUserLowestPermissionLevel(const Hash &nodeHash, const Signature::PublicKey &userPublicKey) const
+    {
+        SqlQuery query(sqliteDb, "SELECT MIN(nodeGroup.permissionLevel) FROM NodeUserGroupAssoc AS userGroupAssoc"
+                                 " INNER JOIN NodeGroup AS nodeGroup ON nodeGroup.groupId = userGroupAssoc.groupId"
+                                 " WHERE userGroupAssoc.node = ? AND userGroupAssoc.userPublicKey = ?", 
+                                 { DataView(nodeHash.getData(), nodeHash.getSize()), DataView((void*)userPublicKey.getData(), userPublicKey.getSize()) });
+        if(!query.next())
+        {
+            Log::error("There is no node %s, no user %s in that node or user does not belong to any groups", nodeHash.toString().c_str(), userPublicKey.toString().c_str());
+            return -1;
+        }
+        return query.getInt(0);
+    }
     
     u64 DatabaseStorage::getUserActionCounter(const Hash &nodeHash, const Signature::PublicKey &userPublicKey) const
     {