http api服务器支持发送大文件

src/Http/HttpBody.h

@@ -54,14 +54,14 @@ public:
     /**
      * 剩余数据大小
      */
-    virtual uint64_t remainSize() = 0;
+    virtual uint64_t remainSize() { return 0;};
 
     /**
      * 读取一定字节数，返回大小可能小于size
      * @param size 请求大小
      * @return 字节对象
      */
-    virtual Buffer::Ptr readData(uint32_t size) = 0;
+    virtual Buffer::Ptr readData(uint32_t size) { return nullptr;};
 };
 
 /**

src/Http/HttpSession.h

@@ -36,21 +36,43 @@
 #include "HttpRequestSplitter.h"
 #include "WebSocketSplitter.h"
 #include "HttpCookieManager.h"
+#include "HttpBody.h"
+#include "Util/function_traits.h"
 
 using namespace std;
 using namespace toolkit;
 
 namespace mediakit {
 
+/**
+ * 该类实现与老代码的兼容适配
+ */
+class HttpResponseInvokerImp{
+public:
+	typedef std::function<void(const string &codeOut, const StrCaseMap &headerOut, const HttpBody::Ptr &body)> HttpResponseInvokerLambda0;
+	typedef std::function<void(const string &codeOut, const StrCaseMap &headerOut, const string &body)> HttpResponseInvokerLambda1;
+
+	HttpResponseInvokerImp(){}
+	~HttpResponseInvokerImp(){}
+	template<typename C>
+	HttpResponseInvokerImp(const C &c):HttpResponseInvokerImp(typename function_traits<C>::stl_function_type(c)) {}
+	HttpResponseInvokerImp(const HttpResponseInvokerLambda0 &lambda);
+	HttpResponseInvokerImp(const HttpResponseInvokerLambda1 &lambda);
+
+	void operator()(const string &codeOut, const StrCaseMap &headerOut, const HttpBody::Ptr &body) const;
+	void operator()(const string &codeOut, const StrCaseMap &headerOut, const string &body) const;
+	operator bool();
+private:
+	HttpResponseInvokerLambda0 _lambad;
+};
+
 class HttpSession: public TcpSession,
                    public FlvMuxer,
                    public HttpRequestSplitter,
                    public WebSocketSplitter {
 public:
 	typedef StrCaseMap KeyValue;
-	typedef std::function<void(const string &codeOut,
-							   const KeyValue &headerOut,
-							   const string &contentOut)>  HttpResponseInvoker;
+	typedef HttpResponseInvokerImp HttpResponseInvoker;
 
 	/**
 	 * @param errMsg 如果为空，则代表鉴权通过，否则为错误提示
@@ -119,11 +141,8 @@ private:
 	void urlDecode(Parser &parser);
 	void sendNotFound(bool bClose);
 	void sendResponse(const char *pcStatus,const KeyValue &header,const string &strContent);
+	void sendResponse(const char *pcStatus,const KeyValue &header,const HttpBody::Ptr &body,bool bClose);
 	KeyValue makeHttpHeader(bool bClose=false,int64_t iContentSize=-1,const char *pcContentType="text/html");
-    void responseDelay(bool bClose,
-                       const string &codeOut,
-                       const KeyValue &headerOut,
-                       const string &contentOut);
 
     /**
      * 判断http客户端是否有权限访问文件的逻辑步骤