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@ -3,6 +3,13 @@ |
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#include <boost/lexical_cast.hpp> |
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#include <boost/lexical_cast.hpp> |
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#include <string> |
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#include <string> |
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#include <atomic> |
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#include <atomic> |
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#include <memory> |
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#include <set> |
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#include <boost/asio.hpp> |
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#include <mutex> |
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#include "I2PService.h" |
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#include "Destination.h" |
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#include "HTTPProxy.h" |
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#include "HTTPProxy.h" |
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#include "util.h" |
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#include "util.h" |
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#include "Identity.h" |
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#include "Identity.h" |
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@ -14,12 +21,19 @@ |
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#include "Config.h" |
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#include "Config.h" |
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#include "HTTP.h" |
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#include "HTTP.h" |
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namespace i2p |
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namespace i2p { |
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{ |
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namespace proxy { |
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namespace proxy |
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bool str_rmatch(std::string & str, const char *suffix) { |
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{ |
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auto pos = str.rfind (suffix); |
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if (pos == std::string::npos) |
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return false; /* not found */ |
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if (str.length() == (pos + std::strlen(suffix))) |
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return true; /* match */ |
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return false; |
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} |
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static const size_t http_buffer_size = 8192; |
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static const size_t http_buffer_size = 8192; |
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class HTTPProxyHandler: public i2p::client::I2PServiceHandler, public std::enable_shared_from_this<HTTPProxyHandler> |
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class HTTPReqHandler: public i2p::client::I2PServiceHandler, public std::enable_shared_from_this<HTTPReqHandler> |
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{ |
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{ |
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private: |
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private: |
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enum state |
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enum state |
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@ -36,10 +50,9 @@ namespace proxy |
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void HandleSockRecv(const boost::system::error_code & ecode, std::size_t bytes_transfered); |
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void HandleSockRecv(const boost::system::error_code & ecode, std::size_t bytes_transfered); |
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void Terminate(); |
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void Terminate(); |
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void AsyncSockRead(); |
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void AsyncSockRead(); |
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void HTTPRequestFailed(/*std::string message*/); |
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void HTTPRequestFailed(const char *message); |
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void RedirectToJumpService(); |
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void RedirectToJumpService(std::string & host); |
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void ExtractRequest(); |
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void ExtractRequest(); |
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bool IsI2PAddress(); |
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bool ValidateHTTPRequest(); |
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bool ValidateHTTPRequest(); |
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void HandleJumpServices(); |
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void HandleJumpServices(); |
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bool CreateHTTPRequest(uint8_t *http_buff, std::size_t len); |
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bool CreateHTTPRequest(uint8_t *http_buff, std::size_t len); |
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@ -59,26 +72,26 @@ namespace proxy |
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public: |
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public: |
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HTTPProxyHandler(HTTPProxyServer * parent, std::shared_ptr<boost::asio::ip::tcp::socket> sock) : |
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HTTPReqHandler(HTTPProxy * parent, std::shared_ptr<boost::asio::ip::tcp::socket> sock) : |
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I2PServiceHandler(parent), m_sock(sock) |
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I2PServiceHandler(parent), m_sock(sock) |
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{ EnterState(GET_METHOD); } |
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{ EnterState(GET_METHOD); } |
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~HTTPProxyHandler() { Terminate(); } |
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~HTTPReqHandler() { Terminate(); } |
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void Handle () { AsyncSockRead(); } |
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void Handle () { AsyncSockRead(); } |
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}; |
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}; |
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void HTTPProxyHandler::AsyncSockRead() |
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void HTTPReqHandler::AsyncSockRead() |
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{ |
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{ |
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LogPrint(eLogDebug, "HTTPProxy: async sock read"); |
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LogPrint(eLogDebug, "HTTPProxy: async sock read"); |
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if(m_sock) { |
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if (!m_sock) { |
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m_sock->async_receive(boost::asio::buffer(m_http_buff, http_buffer_size), |
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std::bind(&HTTPProxyHandler::HandleSockRecv, shared_from_this(), |
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std::placeholders::_1, std::placeholders::_2)); |
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} else { |
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LogPrint(eLogError, "HTTPProxy: no socket for read"); |
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LogPrint(eLogError, "HTTPProxy: no socket for read"); |
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return; |
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} |
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} |
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m_sock->async_receive(boost::asio::buffer(m_http_buff, http_buffer_size), |
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std::bind(&HTTPReqHandler::HandleSockRecv, shared_from_this(), |
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std::placeholders::_1, std::placeholders::_2)); |
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} |
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} |
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void HTTPProxyHandler::Terminate() { |
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void HTTPReqHandler::Terminate() { |
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if (Kill()) return; |
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if (Kill()) return; |
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if (m_sock) |
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if (m_sock) |
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{ |
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{ |
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@ -91,30 +104,45 @@ namespace proxy |
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/* All hope is lost beyond this point */ |
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/* All hope is lost beyond this point */ |
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//TODO: handle this apropriately
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//TODO: handle this apropriately
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void HTTPProxyHandler::HTTPRequestFailed(/*HTTPProxyHandler::errTypes error*/) |
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void HTTPReqHandler::HTTPRequestFailed(const char *message) |
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{ |
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{ |
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static std::string response = "HTTP/1.0 500 Internal Server Error\r\nContent-type: text/html\r\nContent-length: 0\r\n\r\n"; |
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i2p::http::HTTPRes res; |
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boost::asio::async_write(*m_sock, boost::asio::buffer(response,response.size()), |
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res.code = 500; |
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std::bind(&HTTPProxyHandler::SentHTTPFailed, shared_from_this(), std::placeholders::_1)); |
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res.add_header("Content-Type", "text/plain"); |
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res.add_header("Connection", "close"); |
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res.body = message; |
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res.body += "\r\n"; |
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std::string response = res.to_string(); |
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boost::asio::async_write(*m_sock, boost::asio::buffer(response), |
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std::bind(&HTTPReqHandler::SentHTTPFailed, shared_from_this(), std::placeholders::_1)); |
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} |
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} |
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void HTTPProxyHandler::RedirectToJumpService(/*HTTPProxyHandler::errTypes error*/) |
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void HTTPReqHandler::RedirectToJumpService(std::string & host) |
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{ |
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{ |
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std::stringstream response; |
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i2p::http::HTTPRes res; |
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std::string httpAddr; i2p::config::GetOption("http.address", httpAddr); |
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i2p::http::URL url; |
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uint16_t httpPort; i2p::config::GetOption("http.port", httpPort); |
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/* TODO: don't redirect to webconsole, it's not always work, handle jumpservices here */ |
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i2p::config::GetOption("http.address", url.host); |
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i2p::config::GetOption("http.port", url.port); |
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url.path = "/"; |
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url.query = "page=jumpservices&address="; |
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url.query += host; |
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response << "HTTP/1.1 302 Found\r\nLocation: http://" << httpAddr << ":" << httpPort << "/?page=jumpservices&address=" << m_address << "\r\n\r\n"; |
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res.code = 302; /* redirect */ |
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boost::asio::async_write(*m_sock, boost::asio::buffer(response.str (),response.str ().length ()), |
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res.add_header("Location", url.to_string().c_str()); |
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std::bind(&HTTPProxyHandler::SentHTTPFailed, shared_from_this(), std::placeholders::_1)); |
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std::string response = res.to_string(); |
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boost::asio::async_write(*m_sock, boost::asio::buffer(response), |
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std::bind(&HTTPReqHandler::SentHTTPFailed, shared_from_this(), std::placeholders::_1)); |
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} |
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} |
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void HTTPProxyHandler::EnterState(HTTPProxyHandler::state nstate) |
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void HTTPReqHandler::EnterState(HTTPReqHandler::state nstate) |
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{ |
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{ |
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m_state = nstate; |
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m_state = nstate; |
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} |
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} |
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void HTTPProxyHandler::ExtractRequest() |
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void HTTPReqHandler::ExtractRequest() |
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{ |
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{ |
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LogPrint(eLogDebug, "HTTPProxy: request: ", m_method, " ", m_url); |
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LogPrint(eLogDebug, "HTTPProxy: request: ", m_method, " ", m_url); |
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i2p::http::URL url; |
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i2p::http::URL url; |
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@ -127,18 +155,18 @@ namespace proxy |
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LogPrint(eLogDebug, "HTTPProxy: server: ", m_address, ", port: ", m_port, ", path: ", m_path); |
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LogPrint(eLogDebug, "HTTPProxy: server: ", m_address, ", port: ", m_port, ", path: ", m_path); |
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} |
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} |
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bool HTTPProxyHandler::ValidateHTTPRequest() |
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bool HTTPReqHandler::ValidateHTTPRequest() |
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{ |
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{ |
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if ( m_version != "HTTP/1.0" && m_version != "HTTP/1.1" ) |
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if ( m_version != "HTTP/1.0" && m_version != "HTTP/1.1" ) |
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{ |
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{ |
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LogPrint(eLogError, "HTTPProxy: unsupported version: ", m_version); |
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LogPrint(eLogError, "HTTPProxy: unsupported version: ", m_version); |
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HTTPRequestFailed(); //TODO: send right stuff
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HTTPRequestFailed("unsupported HTTP version"); |
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return false; |
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return false; |
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} |
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} |
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return true; |
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return true; |
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} |
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} |
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void HTTPProxyHandler::HandleJumpServices() |
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void HTTPReqHandler::HandleJumpServices() |
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{ |
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{ |
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static const char * helpermark1 = "?i2paddresshelper="; |
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static const char * helpermark1 = "?i2paddresshelper="; |
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static const char * helpermark2 = "&i2paddresshelper="; |
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static const char * helpermark2 = "&i2paddresshelper="; |
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@ -170,32 +198,21 @@ namespace proxy |
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m_path.erase(addressHelperPos); |
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m_path.erase(addressHelperPos); |
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} |
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} |
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bool HTTPProxyHandler::IsI2PAddress() |
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bool HTTPReqHandler::CreateHTTPRequest(uint8_t *http_buff, std::size_t len) |
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{ |
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auto pos = m_address.rfind (".i2p"); |
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if (pos != std::string::npos && (pos+4) == m_address.length ()) |
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{ |
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return true; |
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} |
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return false; |
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} |
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bool HTTPProxyHandler::CreateHTTPRequest(uint8_t *http_buff, std::size_t len) |
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{ |
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{ |
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ExtractRequest(); //TODO: parse earlier
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ExtractRequest(); //TODO: parse earlier
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if (!ValidateHTTPRequest()) return false; |
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if (!ValidateHTTPRequest()) return false; |
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HandleJumpServices(); |
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HandleJumpServices(); |
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i2p::data::IdentHash identHash; |
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i2p::data::IdentHash identHash; |
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if (IsI2PAddress ()) |
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if (str_rmatch(m_address, ".i2p")) |
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{ |
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{ |
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if (!i2p::client::context.GetAddressBook ().GetIdentHash (m_address, identHash)){ |
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if (!i2p::client::context.GetAddressBook ().GetIdentHash (m_address, identHash)){ |
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RedirectToJumpService(); |
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RedirectToJumpService(m_address); |
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return false; |
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return false; |
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} |
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} |
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} |
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} |
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m_request = m_method; |
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m_request = m_method; |
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m_request.push_back(' '); |
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m_request.push_back(' '); |
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m_request += m_path; |
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m_request += m_path; |
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@ -235,7 +252,7 @@ namespace proxy |
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return true; |
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return true; |
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} |
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} |
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bool HTTPProxyHandler::HandleData(uint8_t *http_buff, std::size_t len) |
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bool HTTPReqHandler::HandleData(uint8_t *http_buff, std::size_t len) |
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{ |
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{ |
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while (len > 0) |
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while (len > 0) |
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{ |
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{ |
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@ -269,13 +286,13 @@ namespace proxy |
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case '\n': EnterState(DONE); break; |
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case '\n': EnterState(DONE); break; |
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default: |
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default: |
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LogPrint(eLogError, "HTTPProxy: rejected invalid request ending with: ", ((int)*http_buff)); |
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LogPrint(eLogError, "HTTPProxy: rejected invalid request ending with: ", ((int)*http_buff)); |
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HTTPRequestFailed(); //TODO: add correct code
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HTTPRequestFailed("rejected invalid request"); |
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return false; |
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return false; |
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} |
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} |
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break; |
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break; |
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default: |
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default: |
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LogPrint(eLogError, "HTTPProxy: invalid state: ", m_state); |
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LogPrint(eLogError, "HTTPProxy: invalid state: ", m_state); |
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HTTPRequestFailed(); //TODO: add correct code 500
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HTTPRequestFailed("invalid parser state"); |
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return false; |
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return false; |
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} |
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} |
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http_buff++; |
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http_buff++; |
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@ -286,7 +303,7 @@ namespace proxy |
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return true; |
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return true; |
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} |
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} |
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void HTTPProxyHandler::HandleSockRecv(const boost::system::error_code & ecode, std::size_t len) |
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void HTTPReqHandler::HandleSockRecv(const boost::system::error_code & ecode, std::size_t len) |
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{ |
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{ |
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LogPrint(eLogDebug, "HTTPProxy: sock recv: ", len, " bytes"); |
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LogPrint(eLogDebug, "HTTPProxy: sock recv: ", len, " bytes"); |
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if(ecode) |
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if(ecode) |
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@ -301,49 +318,45 @@ namespace proxy |
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if (m_state == DONE) |
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if (m_state == DONE) |
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{ |
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{ |
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LogPrint(eLogDebug, "HTTPProxy: requested: ", m_url); |
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LogPrint(eLogDebug, "HTTPProxy: requested: ", m_url); |
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GetOwner()->CreateStream (std::bind (&HTTPProxyHandler::HandleStreamRequestComplete, |
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GetOwner()->CreateStream (std::bind (&HTTPReqHandler::HandleStreamRequestComplete, |
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shared_from_this(), std::placeholders::_1), m_address, m_port); |
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shared_from_this(), std::placeholders::_1), m_address, m_port); |
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} |
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} |
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else |
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else |
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AsyncSockRead(); |
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AsyncSockRead(); |
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} |
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} |
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} |
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} |
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void HTTPProxyHandler::SentHTTPFailed(const boost::system::error_code & ecode) |
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void HTTPReqHandler::SentHTTPFailed(const boost::system::error_code & ecode) |
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{ |
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{ |
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if (ecode) |
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if (ecode) |
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LogPrint (eLogError, "HTTPProxy: Closing socket after sending failure because: ", ecode.message ()); |
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LogPrint (eLogError, "HTTPProxy: Closing socket after sending failure because: ", ecode.message ()); |
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Terminate(); |
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Terminate(); |
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} |
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} |
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void HTTPProxyHandler::HandleStreamRequestComplete (std::shared_ptr<i2p::stream::Stream> stream) |
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void HTTPReqHandler::HandleStreamRequestComplete (std::shared_ptr<i2p::stream::Stream> stream) |
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{ |
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{ |
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if (stream) |
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if (!stream) { |
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{ |
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LogPrint (eLogError, "HTTPProxy: error when creating the stream, check the previous warnings for more info"); |
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if (Kill()) return; |
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HTTPRequestFailed("error when creating the stream, check logs"); |
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LogPrint (eLogInfo, "HTTPProxy: New I2PTunnel connection"); |
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return; |
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} |
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if (Kill()) |
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return; |
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LogPrint (eLogDebug, "HTTPProxy: New I2PTunnel connection"); |
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auto connection = std::make_shared<i2p::client::I2PTunnelConnection>(GetOwner(), m_sock, stream); |
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auto connection = std::make_shared<i2p::client::I2PTunnelConnection>(GetOwner(), m_sock, stream); |
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GetOwner()->AddHandler (connection); |
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GetOwner()->AddHandler (connection); |
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connection->I2PConnect (reinterpret_cast<const uint8_t*>(m_request.data()), m_request.size()); |
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connection->I2PConnect (reinterpret_cast<const uint8_t*>(m_request.data()), m_request.size()); |
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Done (shared_from_this()); |
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Done (shared_from_this()); |
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} |
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} |
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else |
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{ |
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LogPrint (eLogError, "HTTPProxy: error when creating the stream, check the previous warnings for more info"); |
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HTTPRequestFailed(); // TODO: Send correct error message host unreachable
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} |
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} |
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HTTPProxyServer::HTTPProxyServer(const std::string& address, int port, std::shared_ptr<i2p::client::ClientDestination> localDestination): |
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HTTPProxy::HTTPProxy(const std::string& address, int port, std::shared_ptr<i2p::client::ClientDestination> localDestination): |
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TCPIPAcceptor(address, port, localDestination ? localDestination : i2p::client::context.GetSharedLocalDestination ()) |
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TCPIPAcceptor(address, port, localDestination ? localDestination : i2p::client::context.GetSharedLocalDestination ()) |
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{ |
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{ |
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} |
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} |
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std::shared_ptr<i2p::client::I2PServiceHandler> HTTPProxyServer::CreateHandler(std::shared_ptr<boost::asio::ip::tcp::socket> socket) |
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std::shared_ptr<i2p::client::I2PServiceHandler> HTTPProxy::CreateHandler(std::shared_ptr<boost::asio::ip::tcp::socket> socket) |
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{ |
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{ |
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return std::make_shared<HTTPProxyHandler> (this, socket); |
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return std::make_shared<HTTPReqHandler> (this, socket); |
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} |
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} |
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} |
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} |
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} // http
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} // i2p
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Jeff Becker
9 years ago
