From 9754372d5e4125bf5850d9cd3ae93d529efdef8d Mon Sep 17 00:00:00 2001
From: "Nicolas \"Pixel\" Noble" <pixel@nobis-crew.org>
Date: Sat, 21 Dec 2013 18:32:27 -0800
Subject: Preliminary WebSocket protocol support.

---
 includes/BWebSocket.h | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 includes/BWebSocket.h

(limited to 'includes/BWebSocket.h')

diff --git a/includes/BWebSocket.h b/includes/BWebSocket.h
new file mode 100644
index 0000000..41e5a7d
--- /dev/null
+++ b/includes/BWebSocket.h
@@ -0,0 +1,62 @@
+#pragma once
+
+#include <Task.h>
+#include <StacklessTask.h>
+#include <BStream.h>
+#include <HttpServer.h>
+
+namespace Balau {
+
+class WebSocketActionBase;
+
+class WebSocketWorker : public StacklessTask {
+  public:
+    virtual bool parse(Http::Request & req) { return true; }
+  protected:
+      WebSocketWorker(IO<Handle> socket, const String & url) : m_socket(new BStream(socket)) { m_name = String("WebSocket:") + url + "/" + m_socket->getName(); }
+      ~WebSocketWorker() { free(m_payload); }
+  private:
+    void processMessage();
+    const char * getName() const { return m_name.to_charp(); }
+    void Do();
+    String m_name;
+    IO<BStream> m_socket;
+    enum {
+        READ_H,
+        READ_PLB,
+        READ_PLL,
+        READ_MK,
+        READ_PL,
+    } m_status = READ_H;
+    enum { MAX_WEBSOCKET_LIMIT = 4 * 1024 * 1024 };
+    uint8_t * m_payload = NULL;
+    uint64_t m_payloadLen;
+    uint64_t m_totalLen;
+    uint64_t m_remainingBytes;
+    uint32_t m_mask;
+    uint8_t m_opcode;
+    bool m_hasMask;
+    bool m_fin;
+    bool m_firstFragment = true;
+    bool m_enforceServer = false;
+    bool m_enforceClient = false;
+    friend class WebSocketActionBase;
+};
+
+class WebSocketServerBase : public HttpServer::Action {
+  protected:
+      WebSocketServerBase(const Regex & regex) : Action(regex) { }
+    virtual WebSocketWorker * spawnWorker(IO<Handle> socket, const String & url) = 0;
+  private:
+    void sendError(IO<Handle> out, const char * serverName);
+    bool Do(HttpServer * server, Http::Request & req, HttpServer::Action::ActionMatch & match, IO<Handle> out) throw (GeneralException);
+};
+
+template<class T>
+class WebSocketServer : public WebSocketServerBase {
+  protected:
+      WebSocketServer(const Regex & regex) : WebSocketServerBase(regex) { }
+    virtual WebSocketWorker * spawnWorker(IO<Handle> socket, const String & url) { return new T(socket, url); }
+};
+
+};
-- 
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