feat: refactor web server to be generic and add websockets framework (#1786)

* Break out changes into a smaller subset

* NL@EOF

* fix windows bs
add player ws updates
add websocket docs

* tested everything to make sure it works

* Address Feedback

dCommon/CMakeLists.txt

@@ -16,6 +16,7 @@ set(DCOMMON_SOURCES
 		"BrickByBrickFix.cpp"
 		"BinaryPathFinder.cpp"
 		"FdbToSqlite.cpp"
+		"JSONUtils.cpp"
 		"TinyXmlUtils.cpp"
 		"Sd0.cpp"
 		"Lxfml.cpp"

dCommon/JSONUtils.cpp

@@ -0,0 +1,17 @@
+#include "JSONUtils.h"
+#include "json.hpp"
+
+using json = nlohmann::json;
+
+std::string JSONUtils::CheckRequiredData(const json& data, const std::vector<std::string>& requiredData) {
+	json check;
+	check["error"] = json::array();
+	for (const auto& required : requiredData) {
+		if (!data.contains(required)) {
+			check["error"].push_back("Missing Parameter: " + required);
+		} else if (data[required] == "") {
+			check["error"].push_back("Empty Parameter: " + required);
+		}
+	}
+	return check["error"].empty() ? "" : check.dump();
+}

dCommon/JSONUtils.h

@@ -0,0 +1,11 @@
+#ifndef _JSONUTILS_H_
+#define _JSONUTILS_H_
+
+#include "json_fwd.hpp"
+
+namespace JSONUtils {
+	// check required fields in json data
+	std::string CheckRequiredData(const nlohmann::json& data, const std::vector<std::string>& requiredData);
+}
+
+#endif // _JSONUTILS_H_

dCommon/dEnums/eHTTPMethod.h

@@ -1,6 +1,8 @@
 #ifndef __EHTTPMETHODS__H__
 #define __EHTTPMETHODS__H__
 
+#include "dPlatforms.h"
+
 #ifdef DARKFLAME_PLATFORM_WIN32
 #pragma push_macro("DELETE")
 #undef DELETE