webconsole: add stream closing

Signed-off-by: R4SAS <r4sas@i2pmail.org>

daemon/HTTPServer.cpp

@@ -54,6 +54,7 @@ namespace http {
 		"  body { font: 100%/1.5em sans-serif; margin: 0; padding: 1.5em; background: #FAFAFA; color: #103456; }\r\n"
 		"  a, .slide label { text-decoration: none; color: #894C84; }\r\n"
 		"  a:hover, .slide label:hover { color: #FAFAFA; background: #894C84; }\r\n"
+		"  a.button { -webkit-appearance: button; -moz-appearance: button; appearance: button; text-decoration: none; color: initial;}\r\n"
 		"  .header { font-size: 2.5em; text-align: center; margin: 1.5em 0; color: #894C84; }\r\n"
 		"  .wrapper { margin: 0 auto; padding: 1em; max-width: 60em; }\r\n"
 		"  .left  { float: left; position: absolute; }\r\n"
@@ -68,6 +69,7 @@ namespace http {
 		"  .slide [type='checkbox']:checked ~ p { display: block; margin-top: 0; padding: 0; }\r\n"
 		"  .disabled:after { color: #D33F3F; content: \"Disabled\" }\r\n"
 		"  .enabled:after  { color: #56B734; content: \"Enabled\"  }\r\n"
+		"  .streamdest { width: 120px; max-width: 240px; overflow: hidden; text-overflow: ellipsis;}\r\n"
 		"</style>\r\n";
 
 	const char HTTP_PAGE_TUNNELS[] = "tunnels";
@@ -89,10 +91,12 @@ namespace http {
 	const char HTTP_COMMAND_RUN_PEER_TEST[] = "run_peer_test";
 	const char HTTP_COMMAND_RELOAD_CONFIG[] = "reload_config";
 	const char HTTP_COMMAND_LOGLEVEL[] = "set_loglevel";
+	const char HTTP_COMMAND_KILLSTREAM[] = "closestream";
 	const char HTTP_PARAM_SAM_SESSION_ID[] = "id";
 	const char HTTP_PARAM_ADDRESS[] = "address";
 
 	static std::string ConvertTime (uint64_t time);
+	std::map<uint32_t, uint32_t> HTTPConnection::m_Tokens;
 
 	static void ShowUptime (std::stringstream& s, int seconds)
 	{
@@ -203,10 +207,7 @@ namespace http {
 		s << "<b>ERROR:</b>&nbsp;" << string << "<br>\r\n";
 	}
 
-    void ShowStatus (
+	void ShowStatus (std::stringstream& s, bool includeHiddenContent, i2p::http::OutputFormatEnum outputFormat)
-            std::stringstream& s,
-            bool includeHiddenContent,
-            i2p::http::OutputFormatEnum outputFormat)
 	{
 		s << "<b>Uptime:</b> ";
 		ShowUptime(s, i2p::context.GetUptime ());
@@ -352,7 +353,7 @@ namespace http {
 
 	static void ShowLeaseSetDestination (std::stringstream& s, std::shared_ptr<const i2p::client::LeaseSetDestination> dest)
 	{
-		s << "<b>Base64:</b><br>\r\n<textarea readonly=\"readonly\" cols=\"64\" rows=\"11\" wrap=\"on\">";
+		s << "<b>Base64:</b><br>\r\n<textarea readonly cols=\"80\" rows=\"11\" wrap=\"on\">";
 		s << dest->GetIdentity ()->ToBase64 () << "</textarea><br>\r\n<br>\r\n";
 		if (dest->IsEncryptedLeaseSet ())
 		{
@@ -403,19 +404,21 @@ namespace http {
 		s << "<br>\r\n";
 	}
 
-	void ShowLocalDestination (std::stringstream& s, const std::string& b32)
+	void ShowLocalDestination (std::stringstream& s, const std::string& b32, uint32_t token)
 	{
 		s << "<b>Local Destination:</b><br>\r\n<br>\r\n";
 		i2p::data::IdentHash ident;
 		ident.FromBase32 (b32);
 		auto dest = i2p::client::context.FindLocalDestination (ident);
+
 		if (dest)
 		{
 			ShowLeaseSetDestination (s, dest);
 			// show streams
-			s << "<table><caption>Streams</caption>\r\n<tr>";
+			s << "<table>\r\n<caption>Streams</caption>\r\n<thead>\r\n<tr>";
-			s << "<th>StreamID</th>";
+			s << "<th style=\"width:25px;\">StreamID</th>";
-			s << "<th>Destination</th>";
+			s << "<th style=\"width:5px;\" \\>"; // Stream closing button column
+			s << "<th class=\"streamdest\">Destination</th>";
 			s << "<th>Sent</th>";
 			s << "<th>Received</th>";
 			s << "<th>Out</th>";
@@ -424,13 +427,20 @@ namespace http {
 			s << "<th>RTT</th>";
 			s << "<th>Window</th>";
 			s << "<th>Status</th>";
-			s << "</tr>\r\n";
+			s << "</tr>\r\n</thead>\r\n<tbody>\r\n";
 
 			for (const auto& it: dest->GetAllStreams ())
 			{
+				auto streamDest = i2p::client::context.GetAddressBook ().ToAddress(it->GetRemoteIdentity ());
 				s << "<tr>";
-				s << "<td>" << it->GetSendStreamID () << "</td>";
+				s << "<td>" << it->GetRecvStreamID () << "</td>";
-				s << "<td>" << i2p::client::context.GetAddressBook ().ToAddress(it->GetRemoteIdentity ()) << "</td>";
+				if (it->GetRecvStreamID ()) {
+					s << "<td><a class=\"button\" href=\"/?cmd=" << HTTP_COMMAND_KILLSTREAM << "&b32=" << b32 << "&streamID="
+					  << it->GetRecvStreamID () << "&token=" << token << "\" title=\"Close stream\"> &#10008; </a></td>";
+				} else {
+					s << "<td \\>";
+				}
+				s << "<td class=\"streamdest\" title=\"" << streamDest << "\">" << streamDest << "</td>";
 				s << "<td>" << it->GetNumSentBytes () << "</td>";
 				s << "<td>" << it->GetNumReceivedBytes () << "</td>";
 				s << "<td>" << it->GetSendQueueSize () << "</td>";
@@ -441,7 +451,7 @@ namespace http {
 				s << "<td>" << (int)it->GetStatus () << "</td>";
 				s << "</tr>\r\n";
 			}
-			s << "</table>";
+			s << "</tbody>\r\n</table>";
 		}
 	}
 
@@ -858,7 +868,8 @@ namespace http {
 		m_Socket->close ();
 	}
 
-	bool HTTPConnection::CheckAuth (const HTTPReq & req) {
+	bool HTTPConnection::CheckAuth (const HTTPReq & req)
+	{
 		/* method #1: http://user:pass@127.0.0.1:7070/ */
 		if (req.uri.find('@') != std::string::npos) {
 			URL url;
@@ -930,7 +941,23 @@ namespace http {
 		SendReply (res, content);
 	}
 
-	std::map<uint32_t, uint32_t> HTTPConnection::m_Tokens;
+	uint32_t HTTPConnection::CreateToken ()
+	{
+		uint32_t token;
+		RAND_bytes ((uint8_t *)&token, 4);
+		token &= 0x7FFFFFFF; // clear first bit
+		auto ts = i2p::util::GetSecondsSinceEpoch ();
+		for (auto it = m_Tokens.begin (); it != m_Tokens.end (); )
+		{
+			if (ts > it->second + TOKEN_EXPIRATION_TIMEOUT)
+				it = m_Tokens.erase (it);
+			else
+				++it;
+		}
+		m_Tokens[token] = ts;
+		return token;
+	}
+
 	void HTTPConnection::HandlePage (const HTTPReq& req, HTTPRes& res, std::stringstream& s)
 	{
 		std::map<std::string, std::string> params;
@@ -947,18 +974,7 @@ namespace http {
 			ShowTunnels (s);
 		else if (page == HTTP_PAGE_COMMANDS)
 		{
-			uint32_t token;
+			uint32_t token = CreateToken ();
-			RAND_bytes ((uint8_t *)&token, 4);
-			token &= 0x7FFFFFFF; // clear first bit
-			auto ts = i2p::util::GetSecondsSinceEpoch ();
-			for (auto it = m_Tokens.begin (); it != m_Tokens.end (); )
-			{
-				if (ts > it->second + TOKEN_EXPIRATION_TIMEOUT)
-					it = m_Tokens.erase (it);
-				else
-					++it;
-			}
-			m_Tokens[token] = ts;
 			ShowCommands (s, token);
 		}
 		else if (page == HTTP_PAGE_TRANSIT_TUNNELS)
@@ -966,7 +982,10 @@ namespace http {
 		else if (page == HTTP_PAGE_LOCAL_DESTINATIONS)
 			ShowLocalDestinations (s);
 		else if (page == HTTP_PAGE_LOCAL_DESTINATION)
-			ShowLocalDestination (s, params["b32"]);
+		{
+			uint32_t token = CreateToken ();
+			ShowLocalDestination (s, params["b32"], token);
+		}
 		else if (page == HTTP_PAGE_I2CP_LOCAL_DESTINATION)
 			ShowI2CPLocalDestination (s, params["i2cp_id"]);
 		else if (page == HTTP_PAGE_SAM_SESSIONS)
@@ -992,7 +1011,10 @@ namespace http {
 		url.parse(req.uri);
 		url.parse_query(params);
 
+		std::string webroot; i2p::config::GetOption("http.webroot", webroot);
+		std::string redirect = "5; url=" + webroot + "?page=commands";
 		std::string token = params["token"];
+
 		if (token.empty () || m_Tokens.find (std::stoi (token)) == m_Tokens.end ())
 		{
 			ShowError(s, "Invalid token");
@@ -1008,36 +1030,74 @@ namespace http {
 			i2p::context.SetAcceptsTunnels (true);
 		else if (cmd == HTTP_COMMAND_DISABLE_TRANSIT)
 			i2p::context.SetAcceptsTunnels (false);
-		else if (cmd == HTTP_COMMAND_SHUTDOWN_START) {
+		else if (cmd == HTTP_COMMAND_SHUTDOWN_START)
+		{
 			i2p::context.SetAcceptsTunnels (false);
 #if ((!defined(WIN32) && !defined(QT_GUI_LIB) && !defined(ANDROID)) || defined(ANDROID_BINARY))
 			Daemon.gracefulShutdownInterval = 10*60;
 #elif defined(WIN32_APP)
 			i2p::win32::GracefulShutdown ();
 #endif
-		} else if (cmd == HTTP_COMMAND_SHUTDOWN_CANCEL) {
+		}
+		else if (cmd == HTTP_COMMAND_SHUTDOWN_CANCEL)
+		{
 			i2p::context.SetAcceptsTunnels (true);
 #if ((!defined(WIN32) && !defined(QT_GUI_LIB) && !defined(ANDROID))  || defined(ANDROID_BINARY))
 			Daemon.gracefulShutdownInterval = 0;
 #elif defined(WIN32_APP)
 			i2p::win32::StopGracefulShutdown ();
 #endif
-		} else if (cmd == HTTP_COMMAND_SHUTDOWN_NOW) {
+		}
+		else if (cmd == HTTP_COMMAND_SHUTDOWN_NOW)
+		{
 #ifndef WIN32_APP
 			Daemon.running = false;
 #else
 			i2p::win32::StopWin32App ();
 #endif
-		} else if (cmd == HTTP_COMMAND_LOGLEVEL){
+		}
+		else if (cmd == HTTP_COMMAND_LOGLEVEL)
+		{
 			std::string level = params["level"];
 			SetLogLevel (level);
-		} else {
+		}
+		else if (cmd == HTTP_COMMAND_KILLSTREAM)
+		{
+			std::string b32 = params["b32"];
+			uint32_t streamID = std::stoul(params["streamID"], nullptr);
+
+			i2p::data::IdentHash ident;
+			ident.FromBase32 (b32);
+			auto dest = i2p::client::context.FindLocalDestination (ident);
+
+			if (streamID)
+			{
+				if (dest)
+				{
+					if(dest->DeleteStream (streamID))
+						s << "<b>SUCCESS</b>:&nbsp;Stream closed<br><br>\r\n";
+					else
+						s << "<b>ERROR</b>:&nbsp;Stream not found or already was closed<br><br>\r\n";
+				}
+				else
+					s << "<b>ERROR</b>:&nbsp;Destination not found<br><br>\r\n";
+			}
+			else
+				s << "<b>ERROR</b>:&nbsp;StreamID can be null<br><br>\r\n";
+
+			s << "<a href=\"" << webroot << "?page=local_destination&b32=" << b32 << "\">Return to destination page</a><br>\r\n";
+			s << "<p>You will be redirected back in 5 seconds</b>";
+			redirect = "5; url=" + webroot + "?page=local_destination&b32=" + b32;
+			res.add_header("Refresh", redirect.c_str());
+			return;
+		}
+		else
+		{
 			res.code = 400;
 			ShowError(s, "Unknown command: " + cmd);
 			return;
 		}
-		std::string webroot; i2p::config::GetOption("http.webroot", webroot);
+
-		std::string redirect = "5; url=" + webroot + "?page=commands";
 		s << "<b>SUCCESS</b>:&nbsp;Command accepted<br><br>\r\n";
 		s << "<a href=\"" << webroot << "?page=commands\">Back to commands list</a><br>\r\n";
 		s << "<p>You will be redirected in 5 seconds</b>";

daemon/HTTPServer.h

@@ -35,6 +35,7 @@ namespace http
 			void HandlePage    (const HTTPReq & req, HTTPRes & res, std::stringstream& data);
 			void HandleCommand (const HTTPReq & req, HTTPRes & res, std::stringstream& data);
 			void SendReply     (HTTPRes & res, std::string & content);
+			uint32_t CreateToken ();
 
 		private: