If anyone is interested in c++ library implementing http, https, ftp, ftps and other internet protocols please take a look at curlpp - curlpp.org
cURLpp is a C++ wrapper for libcURL.
libcURL is described as:
a free and easy-to-use client-side URL transfer library, supporting FTP, FTPS, HTTP, HTTPS, GOPHER, TELNET, DICT, FILE and LDAP. libcurl supports HTTPS certificates, HTTP POST, HTTP PUT, FTP uploading, kerberos, HTTP form based upload, proxies, cookies, user+password authentication, file transfer resume, http proxy tunneling and more!