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reseed proxy

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pull/1009/head
Jeff Becker 7 years ago
parent 5109d40d8e
commit 65db96e663
No known key found for this signature in database
GPG Key ID: F357B3B42F6F9B05
3 changed files with 190 additions and 51 deletions
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1
libi2pd/Config.cpp
Unescape Escape View File

@ -179,6 +179,7 @@ namespace config {
("reseed.floodfill", value<std::string>()->default_value(""), "Path to router info of floodfill to reseed from")
("reseed.file", value<std::string>()->default_value(""), "Path to local .su3 file or HTTPS URL to reseed from")
("reseed.zipfile", value<std::string>()->default_value(""), "Path to local .zip file to reseed from")
("reseed.proxy", value<std::string>()->default_value(""), "url for reseed proxy, supports http/socks")
("reseed.urls", value<std::string>()->default_value(
"https://reseed.i2p-projekt.de/,"
"https://i2p.mooo.com/netDb/,"

4
libi2pd/NTCPSession.cpp
Unescape Escape View File

@ -1247,7 +1247,7 @@ namespace transport
return;
}
buff[4] = (uint8_t) addrsize;
memcpy(buff+4, host.c_str(), addrsize);
memcpy(buff+5, host.c_str(), addrsize);
}
htobe16buf(buff+sz, port);
sz += 2;
@ -1259,7 +1259,7 @@ namespace transport
}
});
boost::asio::async_read(conn->GetSocket(), boost::asio::buffer(readbuff, sz), [=](const boost::system::error_code & e, std::size_t transferred) {
boost::asio::async_read(conn->GetSocket(), boost::asio::buffer(readbuff, 10), [=](const boost::system::error_code & e, std::size_t transferred) {
if(e)
{
LogPrint(eLogError, "NTCP: socks proxy read error ", e.message());

236
libi2pd/Reseed.cpp
Unescape Escape View File

@ -489,6 +489,27 @@ namespace data
std::string Reseeder::HttpsRequest (const std::string& address)
{
i2p::http::URL proxyUrl;
std::string proxy; i2p::config::GetOption("reseed.proxy", proxy);
// check for proxy url
if(proxy.size()) {
// parse
if(proxyUrl.parse(proxy)) {
if (proxyUrl.schema == "http" && !proxyUrl.port) {
proxyUrl.port = 80;
} else if (proxyUrl.schema == "socks" && !proxyUrl.port) {
proxyUrl.port = 1080;
}
// check for valid proxy url schema
if (proxyUrl.schema != "http" && proxyUrl.schema != "socks") {
LogPrint(eLogError, "Reseed: bad proxy url: ", proxy);
return "";
}
} else {
LogPrint(eLogError, "Reseed: bad proxy url: ", proxy);
return "";
}
}
i2p::http::URL url;
if (!url.parse(address)) {
LogPrint(eLogError, "Reseed: failed to parse url: ", address);
@ -500,68 +521,185 @@ namespace data
boost::asio::io_service service;
boost::system::error_code ecode;
auto it = boost::asio::ip::tcp::resolver(service).resolve (
boost::asio::ip::tcp::resolver::query (url.host, std::to_string(url.port)), ecode);
if (!ecode)
boost::asio::ssl::context ctx(service, boost::asio::ssl::context::sslv23);
ctx.set_verify_mode(boost::asio::ssl::context::verify_none);
boost::asio::ssl::stream<boost::asio::ip::tcp::socket> s(service, ctx);
if(proxyUrl.schema.size())
{
boost::asio::ssl::context ctx(service, boost::asio::ssl::context::sslv23);
ctx.set_verify_mode(boost::asio::ssl::context::verify_none);
boost::asio::ssl::stream<boost::asio::ip::tcp::socket> s(service, ctx);
s.lowest_layer().connect (*it, ecode);
if (!ecode)
// proxy connection
auto it = boost::asio::ip::tcp::resolver(service).resolve (
boost::asio::ip::tcp::resolver::query (proxyUrl.host, std::to_string(proxyUrl.port)), ecode);
if(!ecode)
{
SSL_set_tlsext_host_name(s.native_handle(), url.host.c_str ());
s.handshake (boost::asio::ssl::stream_base::client, ecode);
if (!ecode)
s.lowest_layer().connect(*it, ecode);
if(!ecode)
{
LogPrint (eLogDebug, "Reseed: Connected to ", url.host, ":", url.port);
i2p::http::HTTPReq req;
req.uri = url.to_string();
req.AddHeader("User-Agent", "Wget/1.11.4");
req.AddHeader("Connection", "close");
s.write_some (boost::asio::buffer (req.to_string()));
// read response
std::stringstream rs;
char recv_buf[1024]; size_t l = 0;
do {
l = s.read_some (boost::asio::buffer (recv_buf, sizeof(recv_buf)), ecode);
if (l) rs.write (recv_buf, l);
} while (!ecode && l);
// process response
std::string data = rs.str();
i2p::http::HTTPRes res;
int len = res.parse(data);
if (len <= 0) {
LogPrint(eLogWarning, "Reseed: incomplete/broken response from ", url.host);
return "";
}
if (res.code != 200) {
LogPrint(eLogError, "Reseed: failed to reseed from ", url.host, ", http code ", res.code);
return "";
auto & sock = s.next_layer();
if(proxyUrl.schema == "http")
{
i2p::http::HTTPReq proxyReq;
i2p::http::HTTPRes proxyRes;
proxyReq.method = "CONNECT";
proxyReq.version = "HTTP/1.1";
proxyReq.uri = url.host + ":" + std::to_string(url.port);
boost::asio::streambuf writebuf, readbuf;
std::ostream out(&writebuf);
out << proxyReq.to_string();
boost::asio::write(sock, writebuf.data(), boost::asio::transfer_all(), ecode);
if (ecode)
{
sock.close();
LogPrint(eLogError, "Reseed: HTTP CONNECT write error: ", ecode.message());
return "";
}
boost::asio::read_until(sock, readbuf, "\r\n\r\n", ecode);
if (ecode)
{
sock.close();
LogPrint(eLogError, "Reseed: HTTP CONNECT read error: ", ecode.message());
return "";
}
if(proxyRes.parse(boost::asio::buffer_cast<const char *>(readbuf.data()), readbuf.size()) <= 0)
{
sock.close();
LogPrint(eLogError, "Reseed: HTTP CONNECT malformed reply");
return "";
}
if(proxyRes.code != 200)
{
sock.close();
LogPrint(eLogError, "Reseed: HTTP CONNECT got bad status: ", proxyRes.code);
return "";
}
}
data.erase(0, len); /* drop http headers from response */
LogPrint(eLogDebug, "Reseed: got ", data.length(), " bytes of data from ", url.host);
if (res.is_chunked()) {
std::stringstream in(data), out;
if (!i2p::http::MergeChunkedResponse(in, out)) {
LogPrint(eLogWarning, "Reseed: failed to merge chunked response from ", url.host);
else
{
// assume socks if not http, is checked before this for other types
// TODO: support username/password auth etc
uint8_t hs_writebuf[3] = {0x05, 0x01, 0x00};
uint8_t hs_readbuf[2];
boost::asio::write(sock, boost::asio::buffer(hs_writebuf, 3), boost::asio::transfer_all(), ecode);
if(ecode)
{
sock.close();
LogPrint(eLogError, "Reseed: SOCKS handshake write failed: ", ecode.message());
return "";
}
boost::asio::read(sock, boost::asio::buffer(hs_readbuf, 2), ecode);
if(ecode)
{
sock.close();
LogPrint(eLogError, "Reseed: SOCKS handshake read failed: ", ecode.message());
return "";
}
size_t sz = 0;
uint8_t buf[256];
buf[0] = 0x05;
buf[1] = 0x01;
buf[2] = 0x00;
buf[3] = 0x03;
sz += 4;
size_t hostsz = url.host.size();
if(1 + 2 + hostsz + sz > sizeof(buf))
{
sock.close();
LogPrint(eLogError, "Reseed: SOCKS handshake failed, hostname too big: ", url.host);
return "";
}
buf[4] = (uint8_t) hostsz;
memcpy(buf+5, url.host.c_str(), hostsz);
sz += hostsz + 1;
htobe16buf(buf+sz, url.port);
sz += 2;
boost::asio::write(sock, boost::asio::buffer(buf, sz), boost::asio::transfer_all(), ecode);
if(ecode)
{
sock.close();
LogPrint(eLogError, "Reseed: SOCKS handshake failed writing: ", ecode.message());
return "";
}
boost::asio::read(sock, boost::asio::buffer(buf, 10), ecode);
if(ecode)
{
sock.close();
LogPrint(eLogError, "Reseed: SOCKS handshake failed reading: ", ecode.message());
return "";
}
if(buf[1] != 0x00)
{
sock.close();
LogPrint(eLogError, "Reseed: SOCKS handshake bad reply code: ", std::to_string(buf[1]));
return "";
}
LogPrint(eLogDebug, "Reseed: got ", data.length(), "(", out.tellg(), ") bytes of data from ", url.host);
data = out.str();
}
return data;
}
else
LogPrint (eLogError, "Reseed: SSL handshake failed: ", ecode.message ());
}
}
else
{
// direct connection
auto it = boost::asio::ip::tcp::resolver(service).resolve (
boost::asio::ip::tcp::resolver::query (url.host, std::to_string(url.port)), ecode);
if(!ecode)
s.lowest_layer().connect (*it, ecode);
}
if (!ecode)
{
SSL_set_tlsext_host_name(s.native_handle(), url.host.c_str ());
s.handshake (boost::asio::ssl::stream_base::client, ecode);
if (!ecode)
{
LogPrint (eLogDebug, "Reseed: Connected to ", url.host, ":", url.port);
i2p::http::HTTPReq req;
req.uri = url.to_string();
req.AddHeader("User-Agent", "Wget/1.11.4");
req.AddHeader("Connection", "close");
s.write_some (boost::asio::buffer (req.to_string()));
// read response
std::stringstream rs;
char recv_buf[1024]; size_t l = 0;
do {
l = s.read_some (boost::asio::buffer (recv_buf, sizeof(recv_buf)), ecode);
if (l) rs.write (recv_buf, l);
} while (!ecode && l);
// process response
std::string data = rs.str();
i2p::http::HTTPRes res;
int len = res.parse(data);
if (len <= 0) {
LogPrint(eLogWarning, "Reseed: incomplete/broken response from ", url.host);
return "";
}
if (res.code != 200) {
LogPrint(eLogError, "Reseed: failed to reseed from ", url.host, ", http code ", res.code);
return "";
}
data.erase(0, len); /* drop http headers from response */
LogPrint(eLogDebug, "Reseed: got ", data.length(), " bytes of data from ", url.host);
if (res.is_chunked()) {
std::stringstream in(data), out;
if (!i2p::http::MergeChunkedResponse(in, out)) {
LogPrint(eLogWarning, "Reseed: failed to merge chunked response from ", url.host);
return "";
}
LogPrint(eLogDebug, "Reseed: got ", data.length(), "(", out.tellg(), ") bytes of data from ", url.host);
data = out.str();
}
return data;
}
else
LogPrint (eLogError, "Reseed: Couldn't connect to ", url.host, ": ", ecode.message ());
LogPrint (eLogError, "Reseed: SSL handshake failed: ", ecode.message ());
}
else
LogPrint (eLogError, "Reseed: Couldn't resolve address ", url.host, ": ", ecode.message ());
LogPrint (eLogError, "Reseed: Couldn't connect to ", url.host, ": ", ecode.message ());
return "";
}
}
}
}

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