public Yield SiteImport(DreamContext context, DreamMessage request, Result <DreamMessage> response)
        {
            var forceOverwrite = context.GetParam("forceoverwrite", false);
            // Retrieve the title used for path normalization (if any)
            Title relToTitle = Utils.GetRelToTitleFromUrl(context) ?? Title.FromDbPath(NS.MAIN, String.Empty, null);

            // Retrieve the manifest describing the import
            XDoc manifestDoc = request.ToDocument();

            if (manifestDoc == null || manifestDoc.IsEmpty || !manifestDoc.HasName("manifest"))
            {
                throw new PostedDocumentInvalidArgumentException("manifest");
            }

            // Perform the import
            MindTouch.Deki.Export.SiteImportBuilder importBuilder = new MindTouch.Deki.Export.SiteImportBuilder(relToTitle, forceOverwrite);
            importBuilder.Append(manifestDoc);
            response.Return(DreamMessage.Ok(importBuilder.ToDocument()));
            yield break;
        }
        public Yield SiteImport(DreamContext context, DreamMessage request, Result<DreamMessage> response) {
            var forceOverwrite = context.GetParam("forceoverwrite", false);
            // Retrieve the title used for path normalization (if any)
            Title relToTitle = Utils.GetRelToTitleFromUrl(context) ?? Title.FromDbPath(NS.MAIN, String.Empty, null);

            // Retrieve the manifest describing the import
            XDoc manifestDoc = request.ToDocument();
            if(manifestDoc == null || manifestDoc.IsEmpty || !manifestDoc.HasName("manifest")) {
                throw new DreamBadRequestException(String.Format(DekiResources.INVALID_POSTED_DOCUMENT_1, "manifest"));
            }

            // Perform the import
            MindTouch.Deki.Export.SiteImportBuilder importBuilder = new MindTouch.Deki.Export.SiteImportBuilder(relToTitle, forceOverwrite);
            importBuilder.Append(manifestDoc);
            response.Return(DreamMessage.Ok(importBuilder.ToDocument()));
            yield break;
        }