From 400e3d21f9d1efa3985eac9685e784d87b62ed05 Mon Sep 17 00:00:00 2001
From: xcps <xcps@yandex.com>
Date: Fri, 11 Mar 2016 15:30:50 +0500
Subject: [PATCH] jump services

---
 HTTPProxy.cpp  | 20 ++++++++++++++++++++
 HTTPServer.cpp | 22 +++++++++++++++++++++-
 HTTPServer.h   |  1 +
 3 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/HTTPProxy.cpp b/HTTPProxy.cpp
index f0166a4a..160c27f6 100644
--- a/HTTPProxy.cpp
+++ b/HTTPProxy.cpp
@@ -12,6 +12,7 @@
 #include "ClientContext.h"
 #include "I2PEndian.h"
 #include "I2PTunnel.h"
+#include "Config.h"
 
 namespace i2p
 {
@@ -36,6 +37,7 @@ namespace proxy
 			void Terminate();
 			void AsyncSockRead();
 			void HTTPRequestFailed(/*std::string message*/);
+			void RedirectToJumpService();
 			void ExtractRequest();
 			bool ValidateHTTPRequest();
 			void HandleJumpServices();
@@ -95,6 +97,17 @@ namespace proxy
 					 std::bind(&HTTPProxyHandler::SentHTTPFailed, shared_from_this(), std::placeholders::_1));
 	}
 
+	void HTTPProxyHandler::RedirectToJumpService(/*HTTPProxyHandler::errTypes error*/)
+	{
+		std::stringstream response;
+		std::string httpAddr; i2p::config::GetOption("http.address", httpAddr);
+		uint16_t    httpPort; i2p::config::GetOption("http.port", httpPort);
+
+		response << "HTTP/1.1 302 Found\r\nLocation: http://" << httpAddr << ":" << httpPort << "/?jumpservices=&address=" << m_address << "\r\n\r\n";
+		boost::asio::async_write(*m_sock, boost::asio::buffer(response.str (),response.str ().length ()),
+					 std::bind(&HTTPProxyHandler::SentHTTPFailed, shared_from_this(), std::placeholders::_1));
+	}
+
 	void HTTPProxyHandler::EnterState(HTTPProxyHandler::state nstate) 
 	{
 		m_state = nstate;
@@ -168,6 +181,13 @@ namespace proxy
 		ExtractRequest(); //TODO: parse earlier
 		if (!ValidateHTTPRequest()) return false;
 		HandleJumpServices();
+
+		i2p::data::IdentHash identHash;
+		if (!i2p::client::context.GetAddressBook ().GetIdentHash (m_address, identHash)){
+			RedirectToJumpService();
+			return false;
+		}
+
 		m_request = m_method;
 		m_request.push_back(' ');
 		m_request += m_path;
diff --git a/HTTPServer.cpp b/HTTPServer.cpp
index 3b92d4bc..b0281692 100644
--- a/HTTPServer.cpp
+++ b/HTTPServer.cpp
@@ -203,6 +203,9 @@ namespace util
 	const char HTTP_COMMAND_SAM_SESSION[] = "sam_session";
 	const char HTTP_PARAM_SAM_SESSION_ID[] = "id";
 	const char HTTP_COMMAND_I2P_TUNNELS[] = "i2p_tunnels";
+	const char HTTP_COMMAND_JUMPSERVICES[] = "jumpservices=";
+	const char HTTP_PARAM_ADDRESS[] = "address";
+
 	
 	namespace misc_strings
 	{
@@ -393,6 +396,7 @@ namespace util
 		else	
 			s << "<a href=/?" << HTTP_COMMAND_START_ACCEPTING_TUNNELS << ">Start accepting tunnels</a><br>\r\n<br>\r\n";
 		s << "<a href=/?" << HTTP_COMMAND_RUN_PEER_TEST << ">Run peer test</a><br>\r\n<br>\r\n";
+		s << "<a href=/?" << HTTP_COMMAND_JUMPSERVICES << "&address=example.i2p>Jump services</a><br>\r\n<br>\r\n";
 		s << "</div><div class=right>";
 		if (address.length () > 1)
 			HandleCommand (address.substr (2), s);
@@ -464,7 +468,13 @@ namespace util
 			ShowTransports (s);
 		else if (cmd == HTTP_COMMAND_TUNNELS)
 			ShowTunnels (s);
-		else if (cmd == HTTP_COMMAND_TRANSIT_TUNNELS)
+		else if (cmd == HTTP_COMMAND_JUMPSERVICES)
+        {
+			std::map<std::string, std::string> params;
+			ExtractParams (command.substr (paramsPos), params);
+			auto address = params[HTTP_PARAM_ADDRESS];
+			ShowJumpServices (address, s);
+		} else if (cmd == HTTP_COMMAND_TRANSIT_TUNNELS)
 			ShowTransitTunnels (s);
 		else if (cmd == HTTP_COMMAND_START_ACCEPTING_TUNNELS)
 			StartAcceptingTunnels (s);
@@ -494,6 +504,16 @@ namespace util
 			ShowI2PTunnels (s);
 	}	
 
+	void HTTPConnection::ShowJumpServices (const std::string& address, std::stringstream& s)
+	{
+		s << "<form type=\"get\" action=\"/\">";
+		s << "<input type=\"hidden\" name=\"jumpservices\">";
+		s << "<input type=\"text\" value=\"" << address << "\" name=\"address\"> </form><br>\r\n";
+		s << "<b>Jump services for " << address << "</b>";
+		s << "<ul><li><a href=\"http://inr.i2p/search/?q=" << address << "\">Slow jump service</a> <br>\r\n";
+		s << "<li><a href=\"http://stats.i2p/cgi-bin/jump.cgi?a=" << address << "\">zzz jump service</a></ul>";
+    }
+
 	void HTTPConnection::ShowLocalDestinations (std::stringstream& s)
 	{
 		s << "<b>Local Destinations:</b><br>\r\n<br>\r\n";
diff --git a/HTTPServer.h b/HTTPServer.h
index 702e3191..f70e27dc 100644
--- a/HTTPServer.h
+++ b/HTTPServer.h
@@ -62,6 +62,7 @@ namespace util
 
 			void HandleRequest (const std::string& address);
 			void HandleCommand (const std::string& command, std::stringstream& s);
+			void ShowJumpServices (const std::string& address, std::stringstream& s);
 			void ShowTransports (std::stringstream& s);
 			void ShowTunnels (std::stringstream& s);
 			void ShowTransitTunnels (std::stringstream& s);