I2P: End-to-End encrypted and anonymous Internet https://i2pd.website/
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900 lines
38 KiB

#include <ctime>
#include <iomanip>
#include <boost/bind.hpp>
#include <boost/lexical_cast.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>
#include "Base.h"
#include "Log.h"
#include "Tunnel.h"
#include "TransitTunnel.h"
#include "Transports.h"
#include "NetDb.h"
#include "I2PEndian.h"
#include "Streaming.h"
#include "Destination.h"
#include "RouterContext.h"
#include "ClientContext.h"
#include "HTTPServer.h"
// For image and info
#include "version.h"
namespace i2p
{
namespace util
{
const std::string HTTPConnection::itoopieImage =
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"+mHGvzKrRS0R/yqsZq++6BRshpPMUDQcfzHFrIsqZHhWqasAtHc6b/D3cbSAuGcmWdAAAAAElFTkSuQmCC\" />";
const std::string HTTPConnection::itoopieFavicon =
"data:image/png;base64,"
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const char HTTP_COMMAND_TUNNELS[] = "tunnels";
const char HTTP_COMMAND_TRANSIT_TUNNELS[] = "transit_tunnels";
const char HTTP_COMMAND_TRANSPORTS[] = "transports";
const char HTTP_COMMAND_START_ACCEPTING_TUNNELS[] = "start_accepting_tunnels";
const char HTTP_COMMAND_STOP_ACCEPTING_TUNNELS[] = "stop_accepting_tunnels";
const char HTTP_COMMAND_RUN_PEER_TEST[] = "run_peer_test";
const char HTTP_COMMAND_LOCAL_DESTINATIONS[] = "local_destinations";
const char HTTP_COMMAND_LOCAL_DESTINATION[] = "local_destination";
const char HTTP_PARAM_BASE32_ADDRESS[] = "b32";
const char HTTP_COMMAND_SAM_SESSIONS[] = "sam_sessions";
const char HTTP_COMMAND_SAM_SESSION[] = "sam_session";
const char HTTP_PARAM_SAM_SESSION_ID[] = "id";
const char HTTP_COMMAND_I2P_TUNNELS[] = "i2p_tunnels";
namespace misc_strings
{
const char name_value_separator[] = { ':', ' ' };
const char crlf[] = { '\r', '\n' };
} // namespace misc_strings
std::vector<boost::asio::const_buffer> HTTPConnection::reply::to_buffers(int status)
{
std::vector<boost::asio::const_buffer> buffers;
if (headers.size () > 0)
{
status_string = "HTTP/1.1 ";
status_string += std::to_string (status);
status_string += " ";
switch (status)
{
case 105: status_string += "Name Not Resolved"; break;
case 200: status_string += "OK"; break;
case 400: status_string += "Bad Request"; break;
case 404: status_string += "Not Found"; break;
case 408: status_string += "Request Timeout"; break;
case 500: status_string += "Internal Server Error"; break;
case 502: status_string += "Bad Gateway"; break;
case 503: status_string += "Not Implemented"; break;
case 504: status_string += "Gateway Timeout"; break;
default: status_string += "WTF";
}
buffers.push_back(boost::asio::buffer(status_string, status_string.size()));
buffers.push_back(boost::asio::buffer(misc_strings::crlf));
for (std::size_t i = 0; i < headers.size(); ++i)
{
header& h = headers[i];
buffers.push_back(boost::asio::buffer(h.name));
buffers.push_back(boost::asio::buffer(misc_strings::name_value_separator));
buffers.push_back(boost::asio::buffer(h.value));
buffers.push_back(boost::asio::buffer(misc_strings::crlf));
}
buffers.push_back(boost::asio::buffer(misc_strings::crlf));
}
buffers.push_back(boost::asio::buffer(content));
return buffers;
}
void HTTPConnection::Terminate ()
{
if (!m_Stream) return;
m_Stream->Close ();
m_Stream = nullptr;
m_Socket->close ();
}
void HTTPConnection::Receive ()
{
m_Socket->async_read_some (boost::asio::buffer (m_Buffer, HTTP_CONNECTION_BUFFER_SIZE),
std::bind(&HTTPConnection::HandleReceive, shared_from_this (),
std::placeholders::_1, std::placeholders::_2));
}
void HTTPConnection::HandleReceive (const boost::system::error_code& ecode, std::size_t bytes_transferred)
{
if (!ecode)
{
if (!m_Stream) // new request
{
m_Buffer[bytes_transferred] = 0;
m_BufferLen = bytes_transferred;
RunRequest();
}
else // follow-on
m_Stream->Send ((uint8_t *)m_Buffer, bytes_transferred);
Receive ();
}
else if (ecode != boost::asio::error::operation_aborted)
Terminate ();
}
void HTTPConnection::RunRequest ()
{
auto address = ExtractAddress ();
if (address.length () > 1 && address[1] != '?') // not just '/' or '/?'
{
std::string uri ("/"), b32;
size_t pos = address.find ('/', 1);
if (pos == std::string::npos)
b32 = address.substr (1); // excluding leading '/' to end of line
else
{
b32 = address.substr (1, pos - 1); // excluding leading '/' to next '/'
uri = address.substr (pos); // rest of line
}
HandleDestinationRequest (b32, uri);
}
else
HandleRequest (address);
}
std::string HTTPConnection::ExtractAddress ()
{
char * get = strstr (m_Buffer, "GET");
if (get)
{
char * http = strstr (get, "HTTP");
if (http)
return std::string (get + 4, http - get - 5);
}
return "";
}
void HTTPConnection::ExtractParams (const std::string& str, std::map<std::string, std::string>& params)
{
if (str[0] != '&') return;
size_t pos = 1, end;
do
{
end = str.find ('&', pos);
std::string param = str.substr (pos, end - pos);
LogPrint (eLogDebug, "HTTPServer: extracted parameters: ", param);
size_t e = param.find ('=');
if (e != std::string::npos)
params[param.substr(0, e)] = param.substr(e+1);
pos = end + 1;
}
while (end != std::string::npos);
}
void HTTPConnection::HandleWriteReply (const boost::system::error_code& ecode)
{
if (ecode != boost::asio::error::operation_aborted)
{
boost::system::error_code ignored_ec;
m_Socket->shutdown(boost::asio::ip::tcp::socket::shutdown_both, ignored_ec);
Terminate ();
}
}
void HTTPConnection::HandleWrite (const boost::system::error_code& ecode)
{
if (ecode || (m_Stream && !m_Stream->IsOpen ()))
{
if (ecode != boost::asio::error::operation_aborted)
Terminate ();
}
else // data keeps coming
AsyncStreamReceive ();
}
void HTTPConnection::HandleRequest (const std::string& address)
{
std::stringstream s;
// Html5 head start
s << "<!DOCTYPE html>\n<html lang=\"en\">"; // TODO: Add support for locale.
s << "<head><meta charset=\"utf-8\">"; // TODO: Find something to parse html/template system. This is horrible.
s << "<link rel='shortcut icon' href='" + itoopieFavicon + "'>";
s << "<title>Purple I2P " << VERSION " Webconsole</title>";
s << "<style>";
s << "body {font: 100%/1.5em sans-serif; margin: 0; padding: 1.5em; background: #FAFAFA; color: #103456;}";
s << "a {text-decoration: none; color: #894C84;}";
s << "a:hover {color: #FAFAFA; background: #894C84;}";
s << ".header {font-size: 2.5em; text-align: center; margin: 1.5em 0; color: #894C84;}";
s << ".wrapper {margin: 0 auto; padding: 1em; max-width: 48em;}";
s << ".left {float: left; position: absolute;}";
s << ".right {font-size: 1em; margin-left: 13em; float: left; max-width: 34em; word-break: break-all;}";
s << ".established_tunnel {color: #56b734;}";
s << ".expiring_tunnel {color: #d3ae3f;}";
s << ".failed_tunnel {color: #d33f3f;}";
s << ".another_tunnel {color: #434343;}";
s << "</style></head><body>";
s << "<div class=header><b>i2pd </b>webconsole</div>";
s << "<div class=wrapper>";
s << "<div class=left>";
s << "<a href=/>Main page</a><br><br>";
s << "<a href=/?" << HTTP_COMMAND_LOCAL_DESTINATIONS << ">Local destinations</a><br>";
s << "<a href=/?" << HTTP_COMMAND_TUNNELS << ">Tunnels</a><br>";
s << "<a href=/?" << HTTP_COMMAND_TRANSIT_TUNNELS << ">Transit tunnels</a><br>";
s << "<a href=/?" << HTTP_COMMAND_TRANSPORTS << ">Transports</a><br><br>";
s << "<a href=/?" << HTTP_COMMAND_I2P_TUNNELS << ">I2P tunnels</a><br>";
if (i2p::client::context.GetSAMBridge ())
s << "<a href=/?" << HTTP_COMMAND_SAM_SESSIONS << ">SAM sessions</a><br><br>";
if (i2p::context.AcceptsTunnels ())
s << "<a href=/?" << HTTP_COMMAND_STOP_ACCEPTING_TUNNELS << ">Stop accepting tunnels</a><br><br>";
else
s << "<a href=/?" << HTTP_COMMAND_START_ACCEPTING_TUNNELS << ">Start accepting tunnels</a><br><br>";
s << "<a href=/?" << HTTP_COMMAND_RUN_PEER_TEST << ">Run peer test</a><br><br>";
s << "</div><div class=right>";
if (address.length () > 1)
HandleCommand (address.substr (2), s);
else
FillContent (s);
s << "</div></div></body></html>";
SendReply (s.str ());
}
void HTTPConnection::FillContent (std::stringstream& s)
{
s << "<b>Uptime:</b> " << boost::posix_time::to_simple_string (
boost::posix_time::time_duration (boost::posix_time::seconds (
i2p::context.GetUptime ()))) << "<br>";
s << "<b>Status:</b> ";
switch (i2p::context.GetStatus ())
{
case eRouterStatusOK: s << "OK"; break;
case eRouterStatusTesting: s << "Testing"; break;
case eRouterStatusFirewalled: s << "Firewalled"; break;
default: s << "Unknown";
}
s << "<br>";
s << "<b>Tunnel creation success rate:</b> " << i2p::tunnel::tunnels.GetTunnelCreationSuccessRate () << "%<br>";
s << "<b>Received:</b> " << i2p::transport::transports.GetTotalReceivedBytes ()/1000 << "K";
s << " (" << i2p::transport::transports.GetInBandwidth () <<" Bps)<br>";
s << "<b>Sent:</b> " << i2p::transport::transports.GetTotalSentBytes ()/1000 << "K";
s << " (" << i2p::transport::transports.GetOutBandwidth () <<" Bps)<br>";
s << "<b>Data path:</b> " << i2p::util::filesystem::GetDataDir().string() << "<br><br>";
s << "<b>Our external address:</b>" << "<br>" ;
for (auto& address : i2p::context.GetRouterInfo().GetAddresses())
{
switch (address.transportStyle)
{
case i2p::data::RouterInfo::eTransportNTCP:
if (address.host.is_v6 ())
s << "NTCP6&nbsp;&nbsp;";
else
s << "NTCP&nbsp;&nbsp;";
break;
case i2p::data::RouterInfo::eTransportSSU:
if (address.host.is_v6 ())
s << "SSU6&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;";
else
s << "SSU&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;";
break;
default:
s << "Unknown&nbsp;&nbsp;";
}
s << address.host.to_string() << ":" << address.port << "<br>";
}
s << "<br><b>Routers:</b> " << i2p::data::netdb.GetNumRouters () << " ";
s << "<b>Floodfills:</b> " << i2p::data::netdb.GetNumFloodfills () << " ";
s << "<b>LeaseSets:</b> " << i2p::data::netdb.GetNumLeaseSets () << "<br>";
}
void HTTPConnection::HandleCommand (const std::string& command, std::stringstream& s)
{
size_t paramsPos = command.find('&');
std::string cmd = command.substr (0, paramsPos);
if (cmd == HTTP_COMMAND_TRANSPORTS)
ShowTransports (s);
else if (cmd == HTTP_COMMAND_TUNNELS)
ShowTunnels (s);
else if (cmd == HTTP_COMMAND_TRANSIT_TUNNELS)
ShowTransitTunnels (s);
else if (cmd == HTTP_COMMAND_START_ACCEPTING_TUNNELS)
StartAcceptingTunnels (s);
else if (cmd == HTTP_COMMAND_STOP_ACCEPTING_TUNNELS)
StopAcceptingTunnels (s);
else if (cmd == HTTP_COMMAND_RUN_PEER_TEST)
RunPeerTest (s);
else if (cmd == HTTP_COMMAND_LOCAL_DESTINATIONS)
ShowLocalDestinations (s);
else if (cmd == HTTP_COMMAND_LOCAL_DESTINATION)
{
std::map<std::string, std::string> params;
ExtractParams (command.substr (paramsPos), params);
auto b32 = params[HTTP_PARAM_BASE32_ADDRESS];
ShowLocalDestination (b32, s);
}
else if (cmd == HTTP_COMMAND_SAM_SESSIONS)
ShowSAMSessions (s);
else if (cmd == HTTP_COMMAND_SAM_SESSION)
{
std::map<std::string, std::string> params;
ExtractParams (command.substr (paramsPos), params);
auto id = params[HTTP_PARAM_SAM_SESSION_ID];
ShowSAMSession (id, s);
}
else if (cmd == HTTP_COMMAND_I2P_TUNNELS)
ShowI2PTunnels (s);
}
void HTTPConnection::ShowLocalDestinations (std::stringstream& s)
{
s << "<b>Local Destinations:</b><br><br>";
for (auto& it: i2p::client::context.GetDestinations ())
{
auto ident = it.second->GetIdentHash ();;
s << "<a href=/?" << HTTP_COMMAND_LOCAL_DESTINATION;
s << "&" << HTTP_PARAM_BASE32_ADDRESS << "=" << ident.ToBase32 () << ">";
s << i2p::client::context.GetAddressBook ().ToAddress(ident) << "</a><br>" << std::endl;
}
}
void HTTPConnection::ShowLocalDestination (const std::string& b32, std::stringstream& s)
{
s << "<b>Local Destination:</b><br><br>";
i2p::data::IdentHash ident;
ident.FromBase32 (b32);
auto dest = i2p::client::context.FindLocalDestination (ident);
if (dest)
{
s << "<b>Base64:</b><br>" << dest->GetIdentity ()->ToBase64 () << "<br><br>";
s << "<b>LeaseSets:</b> <i>" << dest->GetNumRemoteLeaseSets () << "</i><br>";
auto pool = dest->GetTunnelPool ();
if (pool)
{
s << "<b>Tunnels:</b><br>";
for (auto it: pool->GetOutboundTunnels ())
{
it->Print (s);
auto state = it->GetState ();
if (state == i2p::tunnel::eTunnelStateFailed)
s << " " << "Failed";
else if (state == i2p::tunnel::eTunnelStateExpiring)
s << " " << "Exp";
s << "<br>" << std::endl;
}
for (auto it: pool->GetInboundTunnels ())
{
it->Print (s);
auto state = it->GetState ();
if (state == i2p::tunnel::eTunnelStateFailed)
s << " " << "Failed";
else if (state == i2p::tunnel::eTunnelStateExpiring)
s << " " << "Exp";
s << "<br>" << std::endl;
}
}
s << "<br><b>Streams:</b><br>";
for (auto it: dest->GetStreamingDestination ()->GetStreams ())
{
s << it.first << "->" << i2p::client::context.GetAddressBook ().ToAddress(it.second->GetRemoteIdentity ()) << " ";
s << " [" << it.second->GetNumSentBytes () << ":" << it.second->GetNumReceivedBytes () << "]";
s << " [out:" << it.second->GetSendQueueSize () << "][in:" << it.second->GetReceiveQueueSize () << "]";
s << "[buf:" << it.second->GetSendBufferSize () << "]";
s << "[RTT:" << it.second->GetRTT () << "]";
s << "[Window:" << it.second->GetWindowSize () << "]";
s << "[Status:" << (int)it.second->GetStatus () << "]";
s << "<br>"<< std::endl;
}
}
}
void HTTPConnection::ShowTunnels (std::stringstream& s)
{
s << "<b>Tunnels:</b><br><br>";
s << "<b>Queue size:</b>" << i2p::tunnel::tunnels.GetQueueSize () << "<br>";
for (auto it: i2p::tunnel::tunnels.GetOutboundTunnels ())
{
it->Print (s);
auto state = it->GetState ();
if (state == i2p::tunnel::eTunnelStateFailed)
s << "<span class=failed_tunnel> " << "Failed</span>";
else if (state == i2p::tunnel::eTunnelStateExpiring)
s << "<span class=expiring_tunnel> " << "Exp</span>";
s << " " << (int)it->GetNumSentBytes () << "<br>";
s << std::endl;
}
for (auto it: i2p::tunnel::tunnels.GetInboundTunnels ())
{
it.second->Print (s);
auto state = it.second->GetState ();
if (state == i2p::tunnel::eTunnelStateFailed)
s << "<span class=failed_tunnel> " << "Failed</span>";
else if (state == i2p::tunnel::eTunnelStateExpiring)
s << "<span class=expiring_tunnel> " << "Exp</span>";
s << " " << (int)it.second->GetNumReceivedBytes () << "<br>";
s << std::endl;
}
}
void HTTPConnection::ShowTransitTunnels (std::stringstream& s)
{
s << "<b>Transit tunnels:</b><br><br>";
for (auto it: i2p::tunnel::tunnels.GetTransitTunnels ())
{
if (dynamic_cast<i2p::tunnel::TransitTunnelGateway *>(it.second))
s << it.second->GetTunnelID () << "-->";
else if (dynamic_cast<i2p::tunnel::TransitTunnelEndpoint *>(it.second))
s << "-->" << it.second->GetTunnelID ();
else
s << "-->" << it.second->GetTunnelID () << "-->";
s << " " << it.second->GetNumTransmittedBytes () << "<br>";
}
}
void HTTPConnection::ShowTransports (std::stringstream& s)
{
s << "<b>Transports:</b><br><br>";
auto ntcpServer = i2p::transport::transports.GetNTCPServer ();
if (ntcpServer)
{
s << "<b>NTCP</b><br>";
for (auto it: ntcpServer->GetNTCPSessions ())
{
if (it.second && it.second->IsEstablished ())
{
// incoming connection doesn't have remote RI
if (it.second->IsOutgoing ()) s << "-->";
s << i2p::data::GetIdentHashAbbreviation (it.second->GetRemoteIdentity ()->GetIdentHash ()) << ": "
<< it.second->GetSocket ().remote_endpoint().address ().to_string ();
if (!it.second->IsOutgoing ()) s << "-->";
s << " [" << it.second->GetNumSentBytes () << ":" << it.second->GetNumReceivedBytes () << "]";
s << "<br>" << std::endl;
}
}
}
auto ssuServer = i2p::transport::transports.GetSSUServer ();
if (ssuServer)
{
s << "<br><b>SSU</b><br>";
for (auto it: ssuServer->GetSessions ())
{
auto endpoint = it.second->GetRemoteEndpoint ();
if (it.second->IsOutgoing ()) s << "-->";
s << endpoint.address ().to_string () << ":" << endpoint.port ();
if (!it.second->IsOutgoing ()) s << "-->";
s << " [" << it.second->GetNumSentBytes () << ":" << it.second->GetNumReceivedBytes () << "]";
if (it.second->GetRelayTag ())
s << " [itag:" << it.second->GetRelayTag () << "]";
s << "<br>" << std::endl;
}
s << "<br><b>SSU6</b><br>";
for (auto it: ssuServer->GetSessionsV6 ())
{
auto endpoint = it.second->GetRemoteEndpoint ();
if (it.second->IsOutgoing ()) s << "-->";
s << endpoint.address ().to_string () << ":" << endpoint.port ();
if (!it.second->IsOutgoing ()) s << "-->";
s << " [" << it.second->GetNumSentBytes () << ":" << it.second->GetNumReceivedBytes () << "]";
s << "<br>" << std::endl;
}
}
}
void HTTPConnection::ShowSAMSessions (std::stringstream& s)
{
s << "<b>SAM Sessions:</b><br><br>";
auto sam = i2p::client::context.GetSAMBridge ();
if (sam)
{
for (auto& it: sam->GetSessions ())
{
s << "<a href=/?" << HTTP_COMMAND_SAM_SESSION;
s << "&" << HTTP_PARAM_SAM_SESSION_ID << "=" << it.first << ">";
s << it.first << "</a><br>" << std::endl;
}
}
}
void HTTPConnection::ShowSAMSession (const std::string& id, std::stringstream& s)
{
s << "<b>SAM Session:</b><br><br>";
auto sam = i2p::client::context.GetSAMBridge ();
if (sam)
{
auto session = sam->FindSession (id);
if (session)
{
auto& ident = session->localDestination->GetIdentHash();
s << "<a href=/?" << HTTP_COMMAND_LOCAL_DESTINATION;
s << "&" << HTTP_PARAM_BASE32_ADDRESS << "=" << ident.ToBase32 () << ">";
s << i2p::client::context.GetAddressBook ().ToAddress(ident) << "</a><br>" << std::endl;
s << "<b>Streams:</b><br>";
for (auto it: session->sockets)
{
switch (it->GetSocketType ())
{
case i2p::client::eSAMSocketTypeSession:
s << "session";
break;
case i2p::client::eSAMSocketTypeStream:
s << "stream";
break;
case i2p::client::eSAMSocketTypeAcceptor:
s << "acceptor";
break;
default:
s << "unknown";
}
s << " [" << it->GetSocket ().remote_endpoint() << "]";
s << "<br>" << std::endl;
}
}
}
}
void HTTPConnection::ShowI2PTunnels (std::stringstream& s)
{
s << "<b>Client Tunnels:</b><br><br>";
for (auto& it: i2p::client::context.GetClientTunnels ())
{
s << it.second->GetName () << "<--";
auto& ident = it.second->GetLocalDestination ()->GetIdentHash();
s << "<a href=/?" << HTTP_COMMAND_LOCAL_DESTINATION;
s << "&" << HTTP_PARAM_BASE32_ADDRESS << "=" << ident.ToBase32 () << ">";
s << i2p::client::context.GetAddressBook ().ToAddress(ident);
s << "</a><br>"<< std::endl;
}
s << "<br><b>Server Tunnels:</b><br><br>";
for (auto& it: i2p::client::context.GetServerTunnels ())
{
s << it.second->GetName () << "-->";
auto& ident = it.second->GetLocalDestination ()->GetIdentHash();
s << "<a href=/?" << HTTP_COMMAND_LOCAL_DESTINATION;
s << "&" << HTTP_PARAM_BASE32_ADDRESS << "=" << ident.ToBase32 () << ">";
s << i2p::client::context.GetAddressBook ().ToAddress(ident);
s << "</a><br>"<< std::endl;
}
}
void HTTPConnection::StopAcceptingTunnels (std::stringstream& s)
{
s << "<b>Stop Accepting Tunnels:</b><br><br>";
i2p::context.SetAcceptsTunnels (false);
s << "Accepting tunnels stopped" << std::endl;
}
void HTTPConnection::StartAcceptingTunnels (std::stringstream& s)
{
s << "<b>Start Accepting Tunnels:</b><br><br>";
i2p::context.SetAcceptsTunnels (true);
s << "Accepting tunnels started" << std::endl;
}
void HTTPConnection::RunPeerTest (std::stringstream& s)
{
s << "<b>Run Peer Test:</b><br><br>";
i2p::transport::transports.PeerTest ();
s << "Peer test is running" << std::endl;
}
void HTTPConnection::HandleDestinationRequest (const std::string& address, const std::string& uri)
{
std::string request = "GET " + uri + " HTTP/1.1\r\nHost:" + address + "\r\n\r\n";
LogPrint(eLogDebug, "HTTPServer: client request: ", request);
SendToAddress (address, 80, request.c_str (), request.size ());
}
void HTTPConnection::SendToAddress (const std::string& address, int port, const char * buf, size_t len)
{
i2p::data::IdentHash destination;
if (!i2p::client::context.GetAddressBook ().GetIdentHash (address, destination))
{
LogPrint (eLogWarning, "HTTPServer: Unknown address ", address);
SendReply ("<html>" + itoopieImage + "<br>Unknown address " + address + "</html>", 404);
return;
}
auto leaseSet = i2p::client::context.GetSharedLocalDestination ()->FindLeaseSet (destination);
if (leaseSet && leaseSet->HasNonExpiredLeases ())
SendToDestination (leaseSet, port, buf, len);
else
{
memcpy (m_Buffer, buf, len);
m_BufferLen = len;
i2p::client::context.GetSharedLocalDestination ()->RequestDestination (destination);
m_Timer.expires_from_now (boost::posix_time::seconds(HTTP_DESTINATION_REQUEST_TIMEOUT));
m_Timer.async_wait (std::bind (&HTTPConnection::HandleDestinationRequestTimeout,
shared_from_this (), std::placeholders::_1, destination, port, m_Buffer, m_BufferLen));
}
}
void HTTPConnection::HandleDestinationRequestTimeout (const boost::system::error_code& ecode,
i2p::data::IdentHash destination, int port, const char * buf, size_t len)
{
if (ecode != boost::asio::error::operation_aborted)
{
auto leaseSet = i2p::client::context.GetSharedLocalDestination ()->FindLeaseSet (destination);
if (leaseSet && leaseSet->HasNonExpiredLeases ())
SendToDestination (leaseSet, port, buf, len);
else
// still no LeaseSet
SendReply (leaseSet ? "<html>" + itoopieImage + "<br>Leases expired</html>" : "<html>" + itoopieImage + "LeaseSet not found</html>", 504);
}
}
void HTTPConnection::SendToDestination (std::shared_ptr<const i2p::data::LeaseSet> remote, int port, const char * buf, size_t len)
{
if (!m_Stream)
m_Stream = i2p::client::context.GetSharedLocalDestination ()->CreateStream (remote, port);
if (m_Stream)
{
m_Stream->Send ((uint8_t *)buf, len);
AsyncStreamReceive ();
}
}
void HTTPConnection::AsyncStreamReceive ()
{
if (m_Stream)
m_Stream->AsyncReceive (boost::asio::buffer (m_StreamBuffer, 8192),
std::bind (&HTTPConnection::HandleStreamReceive, shared_from_this (),
std::placeholders::_1, std::placeholders::_2),
45); // 45 seconds timeout
}
void HTTPConnection::HandleStreamReceive (const boost::system::error_code& ecode, std::size_t bytes_transferred)
{
if (!ecode)
{
boost::asio::async_write (*m_Socket, boost::asio::buffer (m_StreamBuffer, bytes_transferred),
std::bind (&HTTPConnection::HandleWrite, shared_from_this (), std::placeholders::_1));
}
else
{
if (ecode == boost::asio::error::timed_out)
SendReply ("<html>" + itoopieImage + "<br>Not responding</html>", 504);
else if (ecode != boost::asio::error::operation_aborted)
Terminate ();
}
}
void HTTPConnection::SendReply (const std::string& content, int status)
{
m_Reply.content = content;
m_Reply.headers.resize(3);
// we need the date header to be complaint with http 1.1
std::time_t time_now = std::time(nullptr);
char time_buff[128];
if (std::strftime(time_buff, sizeof(time_buff), "%a, %d %b %Y %H:%M:%S GMT", std::gmtime(&time_now)))
{
m_Reply.headers[0].name = "Date";
m_Reply.headers[0].value = std::string(time_buff);
m_Reply.headers[1].name = "Content-Length";
m_Reply.headers[1].value = boost::lexical_cast<std::string>(m_Reply.content.size());
m_Reply.headers[2].name = "Content-Type";
m_Reply.headers[2].value = "text/html";
}
boost::asio::async_write (*m_Socket, m_Reply.to_buffers(status),
std::bind (&HTTPConnection::HandleWriteReply, shared_from_this (), std::placeholders::_1));
}
HTTPServer::HTTPServer (const std::string& address, int port):
m_Thread (nullptr), m_Work (m_Service),
m_Acceptor (m_Service, boost::asio::ip::tcp::endpoint (boost::asio::ip::address::from_string(address), port))
{
}
HTTPServer::~HTTPServer ()
{
Stop ();
}
void HTTPServer::Start ()
{
m_Thread = std::unique_ptr<std::thread>(new std::thread (std::bind (&HTTPServer::Run, this)));
m_Acceptor.listen ();
Accept ();
}
void HTTPServer::Stop ()
{
m_Acceptor.close();
m_Service.stop ();
if (m_Thread)
{
m_Thread->join ();
m_Thread = nullptr;
}
}
void HTTPServer::Run ()
{
m_Service.run ();
}
void HTTPServer::Accept ()
{
auto newSocket = std::make_shared<boost::asio::ip::tcp::socket> (m_Service);
m_Acceptor.async_accept (*newSocket, boost::bind (&HTTPServer::HandleAccept, this,
boost::asio::placeholders::error, newSocket));
}
void HTTPServer::HandleAccept(const boost::system::error_code& ecode,
std::shared_ptr<boost::asio::ip::tcp::socket> newSocket)
{
if (!ecode)
{
CreateConnection(newSocket);
Accept ();
}
}
void HTTPServer::CreateConnection(std::shared_ptr<boost::asio::ip::tcp::socket> newSocket)
{
auto conn = std::make_shared<HTTPConnection> (newSocket);
conn->Receive ();
}
}
}