Tools/Extractors: Warn when casc storage could not be opened in remote mode because a local installation was detected in input/cache directory

1 files changed, 10 insertions, 0 deletions

diff --git a/src/tools/extractor_common/CascHandles.cpp b/src/tools/extractor_common/CascHandles.cpp
index d06bc7ed74e..7a984fb0784 100644
--- a/src/tools/extractor_common/CascHandles.cpp
+++ b/src/tools/extractor_common/CascHandles.cpp
@@ -47,6 +47,7 @@ char const* CASC::HumanReadableCASCError(uint32 error)
         case ERROR_ACCESS_DENIED: return "ACCESS_DENIED";
         case ERROR_FILE_NOT_FOUND: return "FILE_NOT_FOUND";
         case ERROR_FILE_ENCRYPTED: return "FILE_ENCRYPTED";
+        case ERROR_FILE_OFFLINE: return "FILE_OFFLINE";
         default: return "UNKNOWN";
     }
 }
@@ -210,6 +211,15 @@ CASC::Storage* CASC::Storage::OpenRemote(boost::filesystem::path const& path, ui
         return nullptr;
     }
 
+    DWORD features = 0;
+    if (!GetStorageInfo(handle, CascStorageFeatures, &features) || !(features & CASC_FEATURE_ONLINE))
+    {
+        printf("Local casc storage detected in cache path \"%s\" (or its parent directory). Remote storage not opened!\n", args.szLocalPath);
+        CascCloseStorage(handle);
+        SetCascError(ERROR_FILE_OFFLINE);
+        return nullptr;
+    }
+
     printf("Opened remote casc storage '%s'\n", path.string().c_str());
     Storage* storage = new Storage(handle);