Added support for all common content-types into MHDFilestreamerHandler

File extension --> content-type associations are read from mime.types file.

libresapi/src/util/ContentTypes.cpp

@@ -0,0 +1,63 @@
+#include "ContentTypes.h"
+#include <fstream>
+
+RsMutex ContentTypes::ctmtx = RsMutex("CTMTX");
+std::map<std::string, std::string> ContentTypes::cache;
+
+#ifdef WINDOWS_SYS
+	//Next to the executable
+	const char* ContentTypes::filename = ".\\mime.types";
+#else
+	const char* ContentTypes::filename = "/etc/mime.types";
+#endif
+
+std::string ContentTypes::cTypeFromExt(const std::string &extension)
+{
+	if(extension.empty())
+		return DEFAULTCT;
+
+	RsStackMutex mtx(ctmtx);
+
+	//looking into the cache
+	std::map<std::string,std::string>::iterator it;
+	it = cache.find(extension);
+	if (it != cache.end())
+	{
+		std::cout << "Mime " + it->second + " for extension ." + extension + " was found in cache" << std::endl;
+		return it->second;
+	}
+
+	//looking into mime.types
+	std::string line;
+	std::string ext;
+	std::ifstream file(filename);
+	while(getline(file, line))
+	{
+		if(line.empty() || line[0] == '#') continue;
+		unsigned int i = line.find_first_of("\t ");
+		unsigned int j;
+		while(i != std::string::npos)	//tokenize
+		{
+			j = i;
+			i = line.find_first_of("\t ", i+1);
+			if(i == std::string::npos)
+				ext = line.substr(j+1);
+			else
+				ext = line.substr(j+1, i-j-1);
+
+			if(extension == ext)
+			{
+				std::string mime = line.substr(0, line.find_first_of("\t "));
+				cache[extension] = mime;
+				std::cout << "Mime " + mime + " for extension ." + extension + " was found in mime.types" << std::endl;
+				return mime;
+			}
+		}
+	}
+
+	//nothing found
+	std::cout << "Mime for " + extension + " was not found in " + filename + " falling back to " << DEFAULTCT << std::endl;
+	cache[extension] = DEFAULTCT;
+	return DEFAULTCT;
+}
+

libresapi/src/util/ContentTypes.h

@@ -0,0 +1,21 @@
+#ifndef CONTENTTYPES_H
+#define CONTENTTYPES_H
+
+#include <util/rsthreads.h>
+#include <map>
+#include <string>
+
+#define DEFAULTCT "application/octet-stream"
+
+class ContentTypes
+{
+public:
+	static std::string cTypeFromExt(const std::string& extension);
+
+private:
+	static std::map<std::string, std::string> cache;
+	static RsMutex ctmtx;
+	static const char* filename;
+};
+
+#endif // CONTENTTYPES_H