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authorlouiz’ <louiz@louiz.org>2016-11-15 00:23:19 +0100
committerlouiz’ <louiz@louiz.org>2016-11-15 00:23:19 +0100
commitd872c2b49214c0a4db40a9e2d860802d9eedc563 (patch)
treecccd27de262b2823d126a48c82455d208696dbdc /src/identd
parented7e66471f7018f2e7e1c6a469e5cd758b913255 (diff)
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Support the ident protocol
fix #3211
Diffstat (limited to 'src/identd')
-rw-r--r--src/identd/identd_server.hpp38
-rw-r--r--src/identd/identd_socket.cpp69
-rw-r--r--src/identd/identd_socket.hpp44
3 files changed, 151 insertions, 0 deletions
diff --git a/src/identd/identd_server.hpp b/src/identd/identd_server.hpp
new file mode 100644
index 0000000..4270749
--- /dev/null
+++ b/src/identd/identd_server.hpp
@@ -0,0 +1,38 @@
+#pragma once
+
+#include <network/tcp_server_socket.hpp>
+#include <identd/identd_socket.hpp>
+#include <unistd.h>
+
+class BiboumiComponent;
+
+class IdentdServer: public TcpSocketServer<IdentdSocket>
+{
+ public:
+ IdentdServer(const BiboumiComponent& biboumi_component, std::shared_ptr<Poller> poller, const uint16_t port):
+ TcpSocketServer<IdentdSocket>(poller, port),
+ biboumi_component(biboumi_component)
+ {}
+
+ const BiboumiComponent& get_biboumi_component() const
+ {
+ return this->biboumi_component;
+ }
+ void shutdown()
+ {
+ if (this->poller->is_managing_socket(this->socket))
+ this->poller->remove_socket_handler(this->socket);
+ ::close(this->socket);
+ }
+ void clean()
+ {
+ this->sockets.erase(std::remove_if(this->sockets.begin(), this->sockets.end(),
+ [](const std::unique_ptr<IdentdSocket>& socket)
+ {
+ return socket->get_socket() == -1;
+ }),
+ this->sockets.end());
+ }
+ private:
+ const BiboumiComponent& biboumi_component;
+};
diff --git a/src/identd/identd_socket.cpp b/src/identd/identd_socket.cpp
new file mode 100644
index 0000000..c1ad55e
--- /dev/null
+++ b/src/identd/identd_socket.cpp
@@ -0,0 +1,69 @@
+#include <identd/identd_socket.hpp>
+#include <identd/identd_server.hpp>
+#include <xmpp/biboumi_component.hpp>
+#include <iomanip>
+
+#include <utils/sha1.hpp>
+
+#include <logger/logger.hpp>
+
+IdentdSocket::IdentdSocket(std::shared_ptr<Poller> poller, const socket_t socket, TcpSocketServer<IdentdSocket>& server):
+ TCPSocketHandler(poller),
+ server(dynamic_cast<IdentdServer&>(server))
+{
+ this->socket = socket;
+}
+
+void IdentdSocket::parse_in_buffer(const std::size_t)
+{
+ while (true)
+ {
+ const auto line_end = this->in_buf.find('\n');
+ if (line_end == std::string::npos)
+ break;
+ std::istringstream line(this->in_buf.substr(0, line_end));
+ this->consume_in_buffer(line_end + 1);
+
+ uint16_t local_port;
+ uint16_t remote_port;
+ char sep;
+ line >> local_port >> sep >> remote_port;
+ const auto& xmpp = this->server.get_biboumi_component();
+ auto response = this->generate_answer(xmpp, local_port, remote_port);
+
+ this->send_data(std::move(response));
+ }
+}
+
+static std::string hash_jid(const std::string& jid)
+{
+ sha1nfo sha1;
+ sha1_init(&sha1);
+ sha1_write(&sha1, jid.data(), jid.size());
+ const uint8_t* res = sha1_result(&sha1);
+ std::ostringstream result;
+ for (int i = 0; i < HASH_LENGTH; i++)
+ result << std::hex << std::setfill('0') << std::setw(2) << static_cast<int>(res[i]);
+ return result.str();
+}
+
+std::string IdentdSocket::generate_answer(const BiboumiComponent& biboumi, uint16_t local, uint16_t remote)
+{
+ for (const Bridge* bridge: biboumi.get_bridges())
+ {
+ for (const auto& pair: bridge->get_irc_clients())
+ {
+ if (pair.second->match_port_pairt(local, remote))
+ {
+ std::ostringstream os;
+ os << local << " , " << remote << " : USERID : OTHER : " << hash_jid(bridge->get_bare_jid());
+ log_debug("Identd, sending: ", os.str());
+ return os.str();
+ }
+ }
+ }
+ std::ostringstream os;
+ os << local << " , " << remote << " ERROR : NO-USER";
+ log_debug("Identd, sending: ", os.str());
+ return os.str();
+}
diff --git a/src/identd/identd_socket.hpp b/src/identd/identd_socket.hpp
new file mode 100644
index 0000000..6d6cc1d
--- /dev/null
+++ b/src/identd/identd_socket.hpp
@@ -0,0 +1,44 @@
+#pragma once
+
+#include <network/socket_handler.hpp>
+
+#include <cassert>
+#include <network/tcp_socket_handler.hpp>
+
+#include <logger/logger.hpp>
+#include <xmpp/biboumi_component.hpp>
+
+class XmppComponent;
+class IdentdSocket;
+class IdentdServer;
+template <typename T>
+class TcpSocketServer;
+
+class IdentdSocket: public TCPSocketHandler
+{
+ public:
+ IdentdSocket(std::shared_ptr<Poller> poller, const socket_t socket, TcpSocketServer<IdentdSocket>& server);
+ ~IdentdSocket() = default;
+ std::string generate_answer(const BiboumiComponent& biboumi, uint16_t local, uint16_t remote);
+
+ void parse_in_buffer(const std::size_t size) override final;
+ void on_connection_close(const std::string& message) override final
+ {}
+
+ bool is_connected() const override final
+ {
+ return true;
+ }
+ bool is_connecting() const override final
+ {
+ return false;
+ }
+
+ private:
+ void connect() override
+ { assert(false); }
+ void on_connection_failed(const std::string&) override final
+ { assert(false); }
+
+ IdentdServer& server;
+};