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#include <boost/bind.hpp>
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#include <boost/lexical_cast.hpp>
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#include "base64.h"
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#include "Log.h"
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#include "Tunnel.h"
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#include "TransitTunnel.h"
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#include "Transports.h"
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#include "NetDb.h"
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#include "HTTPServer.h"
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// For image and info
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#include "version.h"
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namespace i2p
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{
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namespace util
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{
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const std::string HTTPConnection::itoopieImage = ICTOOPIE_128;
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namespace misc_strings
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{
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const char name_value_separator[] = { ':', ' ' };
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const char crlf[] = { '\r', '\n' };
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} // namespace misc_strings
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std::vector<boost::asio::const_buffer> HTTPConnection::reply::to_buffers(int status)
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{
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std::vector<boost::asio::const_buffer> buffers;
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if (headers.size () > 0)
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{
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switch (status)
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{
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case 105: buffers.push_back(boost::asio::buffer("HTTP/1.0 105 Name Not Resolved\r\n")); break;
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case 200: buffers.push_back(boost::asio::buffer("HTTP/1.0 200 OK\r\n")); break;
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case 400: buffers.push_back(boost::asio::buffer("HTTP/1.0 400 Bad Request\r\n")); break;
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case 404: buffers.push_back(boost::asio::buffer("HTTP/1.0 404 Not Found\r\n")); break;
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case 408: buffers.push_back(boost::asio::buffer("HTTP/1.0 408 Request Timeout\r\n")); break;
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case 500: buffers.push_back(boost::asio::buffer("HTTP/1.0 500 Internal Server Error\r\n")); break;
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case 502: buffers.push_back(boost::asio::buffer("HTTP/1.0 502 Bad Gateway\r\n")); break;
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case 503: buffers.push_back(boost::asio::buffer("HTTP/1.0 503 Not Implemented\r\n")); break;
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case 504: buffers.push_back(boost::asio::buffer("HTTP/1.0 504 Gateway Timeout\r\n")); break;
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default:
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buffers.push_back(boost::asio::buffer("HTTP/1.0 200 OK\r\n"));
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}
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for (std::size_t i = 0; i < headers.size(); ++i)
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{
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header& h = headers[i];
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buffers.push_back(boost::asio::buffer(h.name));
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buffers.push_back(boost::asio::buffer(misc_strings::name_value_separator));
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buffers.push_back(boost::asio::buffer(h.value));
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buffers.push_back(boost::asio::buffer(misc_strings::crlf));
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}
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buffers.push_back(boost::asio::buffer(misc_strings::crlf));
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}
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buffers.push_back(boost::asio::buffer(content));
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return buffers;
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}
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void HTTPConnection::Terminate ()
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{
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if (m_Stream)
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{
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m_Stream->Close ();
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DeleteStream (m_Stream);
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}
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m_Socket->close ();
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delete this;
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}
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void HTTPConnection::Receive ()
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{
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m_Socket->async_read_some (boost::asio::buffer (m_Buffer, 8192),
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boost::bind(&HTTPConnection::HandleReceive, this,
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boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred));
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}
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void HTTPConnection::HandleReceive (const boost::system::error_code& ecode, std::size_t bytes_transferred)
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{
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if (!ecode)
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{
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m_Buffer[bytes_transferred] = 0;
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RunRequest();
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}
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else if (ecode != boost::asio::error::operation_aborted)
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Terminate ();
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}
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void HTTPConnection::RunRequest ()
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{
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auto address = ExtractAddress ();
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if (address.length () > 1) // not just '/'
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{
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std::string uri ("/"), b32;
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size_t pos = address.find ('/', 1);
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if (pos == std::string::npos)
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b32 = address.substr (1); // excluding leading '/' to end of line
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else
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{
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b32 = address.substr (1, pos - 1); // excluding leading '/' to next '/'
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uri = address.substr (pos); // rest of line
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}
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HandleDestinationRequest (b32, uri);
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}
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else
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HandleRequest ();
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}
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std::string HTTPConnection::ExtractAddress ()
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{
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char * get = strstr (m_Buffer, "GET");
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if (get)
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{
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char * http = strstr (get, "HTTP");
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if (http)
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return std::string (get + 4, http - get - 5);
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}
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return "";
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}
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void HTTPConnection::HandleWriteReply (const boost::system::error_code& ecode)
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{
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Terminate ();
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}
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void HTTPConnection::HandleWrite (const boost::system::error_code& ecode)
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{
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if (ecode || (m_Stream && !m_Stream->IsOpen ()))
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Terminate ();
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else // data keeps coming
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AsyncStreamReceive ();
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}
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void HTTPConnection::HandleRequest ()
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{
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std::stringstream s;
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// Html5 head start
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s << "<!DOCTYPE html>\n<html lang=\"en\">"; // TODO: Add support for locale.
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s << "<head><meta charset=\"utf-8\" />"; // TODO: Find something to parse html/template system. This is horrible.
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s << "<link rel='shortcut icon' href='";
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s << ICTOOPIE_64_FAVICON;
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s << "' /><title>Purple I2Pd Webconsole</title></head>";
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// Head end
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FillContent (s);
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s << "</html>";
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SendReply (s.str ());
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}
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void HTTPConnection::FillContent (std::stringstream& s)
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{
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s << "<h2>Welcome to the Webconsole!</h2><br><br>";
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s << "<b>Data path:</b> " << i2p::util::filesystem::GetDataDir().string() << "<br>" << "<br>";
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s << "<b>Our external address:</b>" << "<br>";
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for (auto& address : i2p::context.GetRouterInfo().GetAddresses())
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{
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switch (address.transportStyle)
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{
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case i2p::data::RouterInfo::eTransportNTCP:
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s << "NTCP ";
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break;
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case i2p::data::RouterInfo::eTransportSSU:
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s << "SSU ";
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break;
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default:
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s << "Unknown ";
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}
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s << address.host.to_string() << ":" << address.port << "<br>";
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}
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s << "<br><b>Routers:</b> <i>" << i2p::data::netdb.GetNumRouters () << "</i> ";
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s << "<b>Floodfills:</b> <i>" << i2p::data::netdb.GetNumFloodfills () << "</i> ";
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s << "<b>LeaseSets:</b> <i>" << i2p::data::netdb.GetNumLeaseSets () << "</i><br>";
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s << "<br><b>Tunnels</b><br>";
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for (auto it: i2p::tunnel::tunnels.GetOutboundTunnels ())
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{
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it->GetTunnelConfig ()->Print (s);
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if (it->GetTunnelPool () && !it->GetTunnelPool ()->IsExploratory ())
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s << " " << "Pool";
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if (it->IsFailed ())
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s << " " << "Failed";
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s << " " << (int)it->GetNumSentBytes () << "<br>";
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}
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for (auto it: i2p::tunnel::tunnels.GetInboundTunnels ())
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{
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it.second->GetTunnelConfig ()->Print (s);
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if (it.second->GetTunnelPool () && !it.second->GetTunnelPool ()->IsExploratory ())
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s << " " << "Pool";
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if (it.second->IsFailed ())
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s << " " << "Failed";
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s << " " << (int)it.second->GetNumReceivedBytes () << "<br>";
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}
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s << "<br><b>Transit tunnels</b><br>";
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for (auto it: i2p::tunnel::tunnels.GetTransitTunnels ())
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{
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if (dynamic_cast<i2p::tunnel::TransitTunnelGateway *>(it.second))
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s << it.second->GetTunnelID () << "-->";
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else if (dynamic_cast<i2p::tunnel::TransitTunnelEndpoint *>(it.second))
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s << "-->" << it.second->GetTunnelID ();
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else
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s << "-->" << it.second->GetTunnelID () << "-->";
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s << " " << it.second->GetNumTransmittedBytes () << "<br>";
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}
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s << "<br><b>Transports</b><br>";
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s << "NTCP<br>";
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for (auto it: i2p::transports.GetNTCPSessions ())
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{
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// RouterInfo of incoming connection doesn't have address
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bool outgoing = it.second->GetRemoteRouterInfo ().GetNTCPAddress ();
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if (it.second->IsEstablished ())
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{
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if (outgoing) s << "-->";
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s << it.second->GetRemoteRouterInfo ().GetIdentHashAbbreviation () << ": "
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<< it.second->GetSocket ().remote_endpoint().address ().to_string ();
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if (!outgoing) s << "-->";
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s << " [" << it.second->GetNumSentBytes () << ":" << it.second->GetNumReceivedBytes () << "]";
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s << "<br>";
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}
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}
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auto ssuServer = i2p::transports.GetSSUServer ();
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if (ssuServer)
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{
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s << "<br>SSU<br>";
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for (auto it: ssuServer->GetSessions ())
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{
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// incoming connections don't have remote router
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bool outgoing = it.second->GetRemoteRouter ();
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auto endpoint = it.second->GetRemoteEndpoint ();
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if (outgoing) s << "-->";
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s << endpoint.address ().to_string () << ":" << endpoint.port ();
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if (!outgoing) s << "-->";
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s << " [" << it.second->GetNumSentBytes () << ":" << it.second->GetNumReceivedBytes () << "]";
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s << "<br>";
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}
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}
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s << "<p><a href=\"zmw2cyw2vj7f6obx3msmdvdepdhnw2ctc4okza2zjxlukkdfckhq\">Flibusta</a></p>";
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}
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void HTTPConnection::HandleDestinationRequest (const std::string& address, const std::string& uri)
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{
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HandleDestinationRequest(address, "GET", "", uri);
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}
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void HTTPConnection::HandleDestinationRequest (const std::string& address, const std::string& method, const std::string& data, const std::string& uri)
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{
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const i2p::data::LeaseSet * leaseSet = nullptr;
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i2p::data::IdentHash destination;
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std::string fullAddress;
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if (address.find(".b32.i2p") != std::string::npos)
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{
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if (i2p::data::Base32ToByteStream(address.c_str(), address.length() - strlen(".b32.i2p"), (uint8_t *)destination, 32) != 32)
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{
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LogPrint ("Invalid Base32 address ", address);
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SendReply ("<html>" + itoopieImage + "<br>Invalid Base32 address", 400);
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return;
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}
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fullAddress = address;
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}
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else
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{
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if (address.find(".i2p") != std::string::npos)
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{
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auto addr = i2p::data::netdb.FindAddress(address);
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if (!addr)
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{
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LogPrint ("Unknown address ", address);
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SendReply ("<html>" + itoopieImage + "<br>Unknown address " + address + "</html>", 105);
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return;
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}
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destination = *addr;
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fullAddress = address;
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}
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else
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{
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if (address == "local")
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{
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// TODO: remove later
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fullAddress = "local.i2p";
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auto destination = i2p::stream::GetSharedLocalDestination ();
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leaseSet = destination->GetLeaseSet ();
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EepAccept (destination);
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}
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else
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{
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if (i2p::data::Base32ToByteStream(address.c_str(), address.length(), (uint8_t *)destination, 32) != 32)
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{
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LogPrint("Invalid Base32 address ", address);
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SendReply("<html>" + itoopieImage + "<br>Invalid Base32 address", 400);
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return;
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}
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fullAddress = address + ".b32.i2p";
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}
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}
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}
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if (!leaseSet)
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leaseSet = i2p::data::netdb.FindLeaseSet (destination);
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if (!leaseSet || !leaseSet->HasNonExpiredLeases ())
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{
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i2p::data::netdb.Subscribe(destination);
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std::this_thread::sleep_for (std::chrono::seconds(10)); // wait for 10 seconds
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leaseSet = i2p::data::netdb.FindLeaseSet (destination);
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if (!leaseSet || !leaseSet->HasNonExpiredLeases ()) // still no LeaseSet
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{
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SendReply (leaseSet ? "<html>" + itoopieImage + "<br>Leases expired</html>" : "<html>" + itoopieImage + "LeaseSet not found</html>", 504);
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|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if (!m_Stream)
|
|
|
|
|
m_Stream = i2p::stream::CreateStream (*leaseSet);
|
|
|
|
|
if (m_Stream)
|
|
|
|
|
{
|
|
|
|
|
std::string request = method+" " + uri + " HTTP/1.1\n Host:" + fullAddress + "\r\n";
|
|
|
|
|
if (!strcmp(method.c_str(), "GET"))
|
|
|
|
|
{
|
|
|
|
|
// POST/PUT, apply body
|
|
|
|
|
request += "\r\n"+ data;
|
|
|
|
|
}
|
|
|
|
|
LogPrint("HTTP Client Request: ", request);
|
|
|
|
|
m_Stream->Send ((uint8_t *)request.c_str (), request.length (), 10);
|
|
|
|
|
AsyncStreamReceive ();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void HTTPConnection::AsyncStreamReceive ()
|
|
|
|
|
{
|
|
|
|
|
if (m_Stream)
|
|
|
|
|
m_Stream->AsyncReceive (boost::asio::buffer (m_StreamBuffer, 8192),
|
|
|
|
|
boost::bind (&HTTPConnection::HandleStreamReceive, this,
|
|
|
|
|
boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred),
|
|
|
|
|
45); // 45 seconds timeout
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void HTTPConnection::HandleStreamReceive (const boost::system::error_code& ecode, std::size_t bytes_transferred)
|
|
|
|
|
{
|
|
|
|
|
if (bytes_transferred)
|
|
|
|
|
{
|
|
|
|
|
boost::asio::async_write (*m_Socket, boost::asio::buffer (m_StreamBuffer, bytes_transferred),
|
|
|
|
|
boost::bind (&HTTPConnection::HandleWrite, this, boost::asio::placeholders::error));
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (ecode == boost::asio::error::timed_out)
|
|
|
|
|
SendReply ("<html>" + itoopieImage + "<br>Not responding</html>", 504);
|
|
|
|
|
else
|
|
|
|
|
Terminate ();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void HTTPConnection::SendReply (const std::string& content, int status)
|
|
|
|
|
{
|
|
|
|
|
m_Reply.content = content;
|
|
|
|
|
m_Reply.headers.resize(2);
|
|
|
|
|
m_Reply.headers[0].name = "Content-Length";
|
|
|
|
|
m_Reply.headers[0].value = boost::lexical_cast<std::string>(m_Reply.content.size());
|
|
|
|
|
m_Reply.headers[1].name = "Content-Type";
|
|
|
|
|
m_Reply.headers[1].value = "text/html";
|
|
|
|
|
|
|
|
|
|
boost::asio::async_write (*m_Socket, m_Reply.to_buffers(status),
|
|
|
|
|
boost::bind (&HTTPConnection::HandleWriteReply, this,
|
|
|
|
|
boost::asio::placeholders::error));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
HTTPServer::HTTPServer (int port):
|
|
|
|
|
m_Thread (nullptr), m_Work (m_Service),
|
|
|
|
|
m_Acceptor (m_Service, boost::asio::ip::tcp::endpoint (boost::asio::ip::tcp::v4(), port)),
|
|
|
|
|
m_NewSocket (nullptr)
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
HTTPServer::~HTTPServer ()
|
|
|
|
|
{
|
|
|
|
|
Stop ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void HTTPServer::Start ()
|
|
|
|
|
{
|
|
|
|
|
m_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 ();
|
|
|
|
|
delete m_Thread;
|
|
|
|
|
m_Thread = nullptr;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void HTTPServer::Run ()
|
|
|
|
|
{
|
|
|
|
|
m_Service.run ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void HTTPServer::Accept ()
|
|
|
|
|
{
|
|
|
|
|
m_NewSocket = new boost::asio::ip::tcp::socket (m_Service);
|
|
|
|
|
m_Acceptor.async_accept (*m_NewSocket, boost::bind (&HTTPServer::HandleAccept, this,
|
|
|
|
|
boost::asio::placeholders::error));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void HTTPServer::HandleAccept(const boost::system::error_code& ecode)
|
|
|
|
|
{
|
|
|
|
|
if (!ecode)
|
|
|
|
|
{
|
|
|
|
|
CreateConnection(m_NewSocket); // new HTTPConnection(m_NewSocket);
|
|
|
|
|
Accept ();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void HTTPServer::CreateConnection(boost::asio::ip::tcp::socket * m_NewSocket)
|
|
|
|
|
{
|
|
|
|
|
new HTTPConnection (m_NewSocket);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// eepSite. TODO: move away
|
|
|
|
|
|
|
|
|
|
void HTTPConnection::EepAccept (i2p::stream::StreamingDestination * destination)
|
|
|
|
|
{
|
|
|
|
|
if (destination)
|
|
|
|
|
destination->SetAcceptor (std::bind (&HTTPConnection::HandleEepAccept, this, std::placeholders::_1));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void HTTPConnection::HandleEepAccept (i2p::stream::Stream * stream)
|
|
|
|
|
{
|
|
|
|
|
if (stream)
|
|
|
|
|
{
|
|
|
|
|
auto conn = new EepSiteDummyConnection (stream);
|
|
|
|
|
conn->AsyncStreamReceive ();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void EepSiteDummyConnection::AsyncStreamReceive ()
|
|
|
|
|
{
|
|
|
|
|
if (m_Stream)
|
|
|
|
|
m_Stream->AsyncReceive (boost::asio::buffer (m_StreamBuffer, 8192),
|
|
|
|
|
boost::bind (&EepSiteDummyConnection::HandleStreamReceive, this,
|
|
|
|
|
boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred),
|
|
|
|
|
60); // 60 seconds timeout
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void EepSiteDummyConnection::HandleStreamReceive (const boost::system::error_code& ecode, std::size_t bytes_transferred)
|
|
|
|
|
{
|
|
|
|
|
if (ecode)
|
|
|
|
|
{
|
|
|
|
|
LogPrint ("eepSite error: ", ecode.message ());
|
|
|
|
|
DeleteStream (m_Stream);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
std::string content ("");
|
|
|
|
|
content += "<html>" + HTTPConnection::itoopieImage + "</html>";
|
|
|
|
|
std::string response ("HTTP/1.0 200 OK\r\n");
|
|
|
|
|
response += "Content-Length: " + boost::lexical_cast<std::string>(content.length()) + "\r\n";
|
|
|
|
|
response += "Content-Type: text/html\r\n\r\n";
|
|
|
|
|
response += content;
|
|
|
|
|
m_Stream->Send ((uint8_t *)response.c_str (), response.length (), 30);
|
|
|
|
|
m_Stream->Close ();
|
|
|
|
|
}
|
|
|
|
|
delete this;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
