Add server auth to monerod, and client auth to wallet-cli and wallet-rpc

1 files changed, 96 insertions, 0 deletions

diff --git a/src/rpc/rpc_args.cpp b/src/rpc/rpc_args.cpp
new file mode 100644
index 000000000..79f3f7e12
--- /dev/null
+++ b/src/rpc/rpc_args.cpp
@@ -0,0 +1,96 @@
+// Copyright (c) 2014-2017, The Monero Project
+//
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+//
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+#include "rpc_args.h"
+
+#include <boost/asio/ip/address.hpp>
+#include "common/command_line.h"
+#include "common/i18n.h"
+
+namespace cryptonote
+{
+  rpc_args::descriptors::descriptors()
+     : rpc_bind_ip({"rpc-bind-ip", rpc_args::tr("Specify ip to bind rpc server"), "127.0.0.1"})
+     , rpc_login({"rpc-login", rpc_args::tr("Specify username[:password] required for RPC server"), "", true})
+     , confirm_external_bind({"confirm-external-bind", rpc_args::tr("Confirm rcp-bind-ip value is NOT a loopback (local) IP")})
+  {}
+
+  const char* rpc_args::tr(const char* str) { return i18n_translate(str, "cryptonote::rpc_args"); }
+
+  void rpc_args::init_options(boost::program_options::options_description& desc)
+  {
+    const descriptors arg{};
+    command_line::add_arg(desc, arg.rpc_bind_ip);
+    command_line::add_arg(desc, arg.rpc_login);
+    command_line::add_arg(desc, arg.confirm_external_bind);
+  }
+
+  boost::optional<rpc_args> rpc_args::process(const boost::program_options::variables_map& vm)
+  {
+    const descriptors arg{};
+    rpc_args config{};
+    
+    config.bind_ip = command_line::get_arg(vm, arg.rpc_bind_ip);
+    if (!config.bind_ip.empty())
+    {
+      // always parse IP here for error consistency
+      boost::system::error_code ec{};
+      const auto parsed_ip = boost::asio::ip::address::from_string(config.bind_ip, ec);
+      if (ec)
+      {
+        LOG_ERROR(tr("Invalid IP address given for --") << arg.rpc_bind_ip.name);
+        return boost::none;
+      }
+
+      if (!parsed_ip.is_loopback() && !command_line::get_arg(vm, arg.confirm_external_bind))
+      {
+        LOG_ERROR(
+          "--" << arg.rpc_bind_ip.name <<
+          tr(" permits inbound unencrypted external connections. Consider SSH tunnel or SSL proxy instead. Override with --") <<
+          arg.confirm_external_bind.name
+        );
+        return boost::none;
+      }
+    }
+
+    if (command_line::has_arg(vm, arg.rpc_login))
+    {
+      config.login = tools::login::parse(command_line::get_arg(vm, arg.rpc_login), true, "RPC server password");
+      if (!config.login)
+        return boost::none;
+
+      if (config.login->username.empty())
+      {
+        LOG_ERROR(tr("Username specified with --") << arg.rpc_login.name << tr(" cannot be empty"));
+        return boost::none;
+      }
+    }
+
+    return {std::move(config)};
+  }
+}