Method HandleRequest

libi2pd_client/HTTPProxy.cpp:362–545

* @brief Try to parse request from @a m_recv_buf * If parsing success, rebuild request and store to @a m_send_buf * with remaining data tail * @return true on processed request or false if more data needed */

	 * @return true on processed request or false if more data needed
	 */
	bool HTTPReqHandler::HandleRequest()
	{
		m_req_len = m_ClientRequest.parse(m_recv_buf);

		if (m_req_len == 0)
			return false; /* need more data */

		if (m_req_len < 0) {
			LogPrint(eLogError, "HTTPProxy: Unable to parse request");
			GenericProxyError(tr("Invalid request"), tr("Proxy unable to parse your request"));
			return true; /* parse error */
		}

		/* parsing success, now let's look inside request */
		LogPrint(eLogDebug, "HTTPProxy: Requested: ", m_ClientRequest.uri);
		m_RequestURL.parse(m_ClientRequest.uri);
		bool m_Confirm;

		std::string jump;
		if (ExtractAddressHelper(m_RequestURL, jump, m_Confirm))
		{
			if (!m_Addresshelper || !i2p::client::context.GetAddressBook ().IsEnabled ())
			{
				LogPrint(eLogWarning, "HTTPProxy: Addresshelper request rejected");
				GenericProxyError(tr("Invalid request"), tr("Addresshelper is not supported"));
				return true;
			}

			if (i2p::client::context.GetAddressBook ().RecordExists (m_RequestURL.host, jump))
			{
				std::string full_url = m_RequestURL.to_string();
				SendRedirect(full_url);
				return true;
			}
			else if (!i2p::client::context.GetAddressBook ().FindAddress (m_RequestURL.host) || m_Confirm)
			{
				const std::string referer_raw = m_ClientRequest.GetHeader("Referer");
				i2p::http::URL referer_url;
				if (!referer_raw.empty ())
				{
					referer_url.parse (referer_raw);
				}
				if (m_RequestURL.host != referer_url.host)
				{
					if (m_Confirm) // Attempt to forced overwriting by link with "&update=true" from harmful URL
					{
						LogPrint (eLogWarning, "HTTPProxy: Address update from addresshelper rejected for ", m_RequestURL.host, " (referer is ", m_RequestURL.host.empty() ? "empty" : "harmful", ")");
						std::string full_url = m_RequestURL.to_string();
						std::stringstream ss;
						ss << tr("Host %s is <font color=red>already in router's addressbook</font>. <b>Be careful: source of this URL may be harmful!</b> Click here to update record: <a href=\"%s%s%s&update=true\">Continue</a>.",
							m_RequestURL.host.c_str(), full_url.c_str(), (full_url.find('?') != std::string::npos ? "&i2paddresshelper=" : "?i2paddresshelper="), jump.c_str());
						GenericProxyInfo(tr("Addresshelper forced update rejected"), ss.str());
					}
					else // Preventing unauthorized additions to the address book
					{
						LogPrint (eLogDebug, "HTTPProxy: Adding address from addresshelper for ", m_RequestURL.host, " (generate refer-base page)");
						std::string full_url = m_RequestURL.to_string();
						std::stringstream ss;