Add util::GetWebuiDataDir(), HTTP parsing utilities and tests.

core/util/HTTP.h

@@ -0,0 +1,42 @@
+#ifndef _HTTP_H__
+#define _HTTP_H__
+
+#include <string>
+#include <map>
+
+namespace i2p {
+namespace util {
+namespace http {
+
+class Request {
+    void parseRequestLine(const std::string& line);
+    void parseHeaderLine(const std::string& line);
+public:
+    Request(const std::string& data);
+
+    std::string getMethod() const;
+
+    std::string getUri() const;
+
+    std::string getHost() const;
+
+    int getPort() const;
+
+    /**
+     * @throw std::out_of_range if no such header exists
+     */
+    std::string getHeader(const std::string& name) const;
+
+private:
+    std::string method;
+    std::string uri;
+    std::string host;
+    int port;
+    std::map<std::string, std::string> headers;
+};
+
+}
+}
+}
+
+#endif // _HTTP_H__