workspace share security (#192)

- Improvement: Reworked workspace shares to be more secure. Workspaces and workspace shares can only be created using the `zen workspace` command, the http endpoint is disabled unless zenserver is started with the `--workspaces-allow-changes` option enabled.
  - Each workspace are now configured via a `zenworkspaceconfig.json` file in the root of each workspace
  - A workspace can allow shares to be created via the http interface if the workspace is created with the `--allow-share-create-from-http` option enabled
  - A new http endpoint at `/ws` - issuing a `Get` operation will get you a list of workspaces
  - A new http endpoint at `/ws/refresh` - issuing a `Get` will make zenserver scan for edits in workspaces and workspace shares

1 files changed, 4 insertions, 1 deletions

diff --git a/src/zenhttp/httpclient.cpp b/src/zenhttp/httpclient.cpp
index 0d12cf815..584433f79 100644
--- a/src/zenhttp/httpclient.cpp
+++ b/src/zenhttp/httpclient.cpp
@@ -110,7 +110,10 @@ CommonResponse(cpr::Response&& HttpResponse, IoBuffer&& Payload = {})
 	}
 	else
 	{
-		return ResponseWithPayload(HttpResponse, WorkResponseCode, std::move(Payload));
+		return ResponseWithPayload(
+			HttpResponse,
+			WorkResponseCode,
+			Payload ? std::move(Payload) : IoBufferBuilder::MakeCloneFromMemory(HttpResponse.text.data(), HttpResponse.text.size()));
 	}
 }