yhook: send valide error/ok responses; allow error message

Origin commit data
------------------
Commit: 57cc01978b
Author: vanhofen <vanhofen@gmx.de>
Date: 2016-02-20 (Sat, 20 Feb 2016)

Origin message was:
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- yhook: send valide error/ok responses; allow error message

src/nhttpd/yhttpd_core/yhook.cpp

@@ -538,3 +538,44 @@ std::string CyhookHandler::outNext() {
 		return "";
 }
 
+//-----------------------------------------------------------------------------
+void CyhookHandler::SendOk() {
+	std::string result = "";
+	switch (outType) {
+	case xml:
+		result = "<success>true</success>";
+		break;
+	case json:
+		result = "{\"success\": \"true\"}";
+		break;
+	default:
+		result = "ok";
+		break;
+	}
+	Write(result);
+}
+//-----------------------------------------------------------------------------
+void CyhookHandler::SendError(std::string error) {
+	std::string result = "";
+	switch (outType) {
+	case xml:
+		if (error.empty())
+			result = "<success>false</success>";
+		else
+			result = "<success>false<error>" + error + "</error></success>";
+		break;
+	case json:
+		if (error.empty())
+			result = "{\"success\": \"false\"}";
+		else
+			result = "{\"success\": \"false\", \"error\":{\"text\": \"" + error + "\"}}";
+		break;
+	default:
+		if (error.empty())
+			result = "error";
+		else
+			result = "error=" + error;
+		break;
+	}
+	Write(result);
+}

src/nhttpd/yhttpd_core/yhook.h

@@ -192,8 +192,8 @@ public:
 	void WriteLn(char const *text)				{WriteLn(std::string(text));}
 	void SendHTMLHeader(const std::string& Titel);
 	void SendHTMLFooter(void);
-	void SendOk(void)							{(ParamList["response"]=="json") ? Write("{\"success\": \"true\"}") : Write("ok");}
+	void SendOk(void);
-	void SendError(void)						{(ParamList["response"]=="json") ? Write("{\"success\": \"false\"}") : Write("error");}
+	void SendError(std::string error = "");
 	void SendFile(const std::string& url)		{NewURL = url; status = HANDLED_SENDFILE;}
 	void SendRedirect(const std::string& url)	{httpStatus=HTTP_MOVED_TEMPORARILY; NewURL = url; status = HANDLED_REDIRECTION;}
 	void SendRewrite(const std::string& url)	{NewURL = url; status = HANDLED_REWRITE;}