compute orchestration (#763)

- Added local process runners for Linux/Wine, Mac with some sandboxing support
- Horde & Nomad provisioning for development and testing
- Client session queues with lifecycle management (active/draining/cancelled), automatic retry with configurable limits, and manual reschedule API
- Improved web UI for orchestrator, compute, and hub dashboards with WebSocket push updates
- Some security hardening
- Improved scalability and `zen exec` command

Still experimental - compute support is disabled by default

1 files changed, 19 insertions, 6 deletions

diff --git a/src/zenhttp/servers/httpsys.cpp b/src/zenhttp/servers/httpsys.cpp
index a48f1d316..cf639c114 100644
--- a/src/zenhttp/servers/httpsys.cpp
+++ b/src/zenhttp/servers/httpsys.cpp
@@ -336,8 +336,9 @@ public:
 	virtual Oid		 ParseSessionId() const override;
 	virtual uint32_t ParseRequestId() const override;
 
-	virtual bool			 IsLocalMachineRequest() const;
+	virtual bool			 IsLocalMachineRequest() const override;
 	virtual std::string_view GetAuthorizationHeader() const override;
+	virtual std::string_view GetRemoteAddress() const override;
 
 	virtual IoBuffer ReadPayload() override;
 	virtual void	 WriteResponse(HttpResponseCode ResponseCode) override;
@@ -353,11 +354,12 @@ public:
 	HttpSysServerRequest(const HttpSysServerRequest&) = delete;
 	HttpSysServerRequest& operator=(const HttpSysServerRequest&) = delete;
 
-	HttpSysTransaction&			 m_HttpTx;
-	HttpSysRequestHandler*		 m_NextCompletionHandler = nullptr;
-	IoBuffer					 m_PayloadBuffer;
-	ExtendableStringBuilder<128> m_UriUtf8;
-	ExtendableStringBuilder<128> m_QueryStringUtf8;
+	HttpSysTransaction&					m_HttpTx;
+	HttpSysRequestHandler*				m_NextCompletionHandler = nullptr;
+	IoBuffer							m_PayloadBuffer;
+	ExtendableStringBuilder<128>		m_UriUtf8;
+	ExtendableStringBuilder<128>		m_QueryStringUtf8;
+	mutable ExtendableStringBuilder<64> m_RemoteAddress;
 };
 
 /** HTTP transaction
@@ -1902,6 +1904,17 @@ HttpSysServerRequest::IsLocalMachineRequest() const
 }
 
 std::string_view
+HttpSysServerRequest::GetRemoteAddress() const
+{
+	if (m_RemoteAddress.Size() == 0)
+	{
+		const SOCKADDR* SockAddr = m_HttpTx.HttpRequest()->Address.pRemoteAddress;
+		GetAddressString(m_RemoteAddress, SockAddr, /* IncludePort */ false);
+	}
+	return m_RemoteAddress.ToView();
+}
+
+std::string_view
 HttpSysServerRequest::GetAuthorizationHeader() const
 {
 	const HTTP_REQUEST*		 HttpRequestPtr		 = m_HttpTx.HttpRequest();