extract http static and http stream from http conn.

trunk/src/app/srs_app_http_static.hpp

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+/*
+The MIT License (MIT)
+
+Copyright (c) 2013-2015 SRS(simple-rtmp-server)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#ifndef SRS_APP_HTTP_STATIC_HPP
+#define SRS_APP_HTTP_STATIC_HPP
+
+/*
+#include <srs_app_http_static.hpp>
+*/
+
+#include <srs_core.hpp>
+
+#include <srs_app_http_conn.hpp>
+
+#ifdef SRS_AUTO_HTTP_SERVER
+
+/**
+ * the flv vod stream supports flv?start=offset-bytes.
+ * for example, http://server/file.flv?start=10240
+ * server will write flv header and sequence header,
+ * then seek(10240) and response flv tag data.
+ */
+class SrsVodStream : public SrsHttpFileServer
+{
+public:
+    SrsVodStream(std::string root_dir);
+    virtual ~SrsVodStream();
+protected:
+    virtual int serve_flv_stream(ISrsHttpResponseWriter* w, ISrsHttpMessage* r, std::string fullpath, int offset);
+    virtual int serve_mp4_stream(ISrsHttpResponseWriter* w, ISrsHttpMessage* r, std::string fullpath, int start, int end);
+};
+
+/**
+* the http static server instance,
+* serve http static file and flv/mp4 vod stream.
+*/
+class SrsHttpStaticServer : virtual public ISrsReloadHandler
+{
+private:
+    SrsServer* server;
+public:
+    SrsHttpServeMux mux;
+public:
+    SrsHttpStaticServer(SrsServer* svr);
+    virtual ~SrsHttpStaticServer();
+public:
+    virtual int initialize();
+// interface ISrsReloadHandler.
+public:
+    virtual int on_reload_vhost_http_updated();
+};
+
+#endif
+
+#endif
+