add http server root password protection (#757)

- Feature: Added `--security-config-path` option to zenserver to configure security settings
  - Expects a path to a .json file
  - Default is an empty path resulting in no extra security settings and legacy behavior
  - Current support is a top level filter of incoming http requests restricted to the `password` type
  - `password` type will check the `Authorization` header and match it to the selected authorization strategy
  - Currently the security settings is very basic and configured to a fixed username+password at startup

        {
            "http" {
                "root": {
                    "filter": {
                        "type": "password",
                        "config": {
	                          "password": {
	                              "username": "<username>",
	                              "password": "<password>"
	                          },
                            "protect-machine-local-requests": false,
	                          "unprotected-uris": [
	                              "/health/",
	                              "/health/info",
	                              "/health/version"
	                          ]
                        }
                    }
                }
            }
        }

1 files changed, 12 insertions, 6 deletions

diff --git a/src/zenhttp/servers/httpplugin.cpp b/src/zenhttp/servers/httpplugin.cpp
index 4219dc292..8564826d6 100644
--- a/src/zenhttp/servers/httpplugin.cpp
+++ b/src/zenhttp/servers/httpplugin.cpp
@@ -147,10 +147,10 @@ public:
 	HttpPluginServerRequest& operator=(const HttpPluginServerRequest&) = delete;
 
 	// As this is plugin transport connection used for specialized connections we assume it is not a machine local connection
-	virtual bool IsLocalMachineRequest() const /* override*/ { return false; }
-
-	virtual Oid		 ParseSessionId() const override;
-	virtual uint32_t ParseRequestId() const override;
+	virtual bool			 IsLocalMachineRequest() const /* override*/ { return false; }
+	virtual std::string_view GetAuthorizationHeader() const override;
+	virtual Oid				 ParseSessionId() const override;
+	virtual uint32_t		 ParseRequestId() const override;
 
 	virtual IoBuffer ReadPayload() override;
 	virtual void	 WriteResponse(HttpResponseCode ResponseCode) override;
@@ -636,6 +636,12 @@ HttpPluginServerRequest::~HttpPluginServerRequest()
 {
 }
 
+std::string_view
+HttpPluginServerRequest::GetAuthorizationHeader() const
+{
+	return m_Request.AuthorizationHeader();
+}
+
 Oid
 HttpPluginServerRequest::ParseSessionId() const
 {
@@ -831,6 +837,7 @@ HttpPluginServerImpl::OnRun(bool IsInteractive)
 
 			if (c == 27 || c == 'Q' || c == 'q')
 			{
+				m_ShutdownEvent.Set();
 				RequestApplicationExit(0);
 			}
 		}
@@ -932,8 +939,7 @@ HttpPluginServerImpl::FilterRequest(HttpServerRequest& Request)
 	{
 		return IHttpRequestFilter::Result::Accepted;
 	}
-	IHttpRequestFilter::Result FilterResult = RequestFilter->FilterRequest(Request);
-	return FilterResult;
+	return RequestFilter->FilterRequest(Request);
 }
 
 //////////////////////////////////////////////////////////////////////////