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efe3700f70ddc68d768246b43b743f5993fca85f
xahaud/src/ripple/rpc/impl/ServerHandlerImp.cpp
Scott Schurr efe3700f70 Don't use JobQueue during shutdown (RIPD-1356): 
If the JobQueue is used during shutdown then those Jobs may access
Stoppables after they have already stopped.  This violates the
preconditions of Stoppables and may lead to undefined behavior.

The solution taken here is to reference count all Jobs in the
JobQueue.  At stop time all Jobs already in the JobQueue are
allowed to run to completion, but no further Jobs are allowed
into the JobQueue.

If a Job is rejected from the JobQueue (because we are stopping),
then JobQueue::addJob() returns false, so the caller can make any
necessary adjustments.
2017-07-31 18:39:58 -04:00

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//------------------------------------------------------------------------------
/*
This file is part of rippled: https://github.com/ripple/rippled
Copyright (c) 2012, 2013 Ripple Labs Inc.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
#include <BeastConfig.h>
#include <ripple/app/main/Application.h>
#include <ripple/app/misc/NetworkOPs.h>
#include <ripple/beast/rfc2616.h>
#include <ripple/beast/net/IPAddressConversion.h>
#include <ripple/json/json_reader.h>
#include <ripple/rpc/json_body.h>
#include <ripple/rpc/ServerHandler.h>
#include <ripple/server/Server.h>
#include <ripple/server/impl/JSONRPCUtil.h>
#include <ripple/rpc/impl/ServerHandlerImp.h>
#include <ripple/basics/contract.h>
#include <ripple/basics/Log.h>
#include <ripple/basics/make_SSLContext.h>
#include <ripple/core/JobQueue.h>
#include <ripple/json/to_string.h>
#include <ripple/net/RPCErr.h>
#include <ripple/overlay/Overlay.h>
#include <ripple/resource/ResourceManager.h>
#include <ripple/resource/Fees.h>
#include <ripple/rpc/impl/Tuning.h>
#include <ripple/rpc/RPCHandler.h>
#include <ripple/server/SimpleWriter.h>
#include <beast/core/detail/base64.hpp>
#include <beast/http/fields.hpp>
#include <beast/http/string_body.hpp>
#include <boost/algorithm/string.hpp>
#include <boost/type_traits.hpp>
#include <boost/optional.hpp>
#include <boost/regex.hpp>
#include <algorithm>
#include <stdexcept>
namespace ripple {
static
bool
isStatusRequest(
http_request_type const& request)
{
return
request.version >= 11 &&
request.target() == "/" &&
request.body.size() == 0 &&
request.method() == beast::http::verb::get;
}
static
Handoff
unauthorizedResponse(
http_request_type const& request)
{
using namespace beast::http;
Handoff handoff;
response<string_body> msg;
msg.version = request.version;
msg.result(beast::http::status::unauthorized);
msg.insert("Server", BuildInfo::getFullVersionString());
msg.insert("Content-Type", "text/html");
msg.insert("Connection", "close");
msg.body = "Invalid protocol.";
msg.prepare_payload();
handoff.response = std::make_shared<SimpleWriter>(msg);
return handoff;
}
// VFALCO TODO Rewrite to use beast::http::fields
static
bool
authorized (
Port const& port,
std::map<std::string, std::string> const& h)
{
if (port.user.empty() || port.password.empty())
return true;
auto const it = h.find ("authorization");
if ((it == h.end ()) || (it->second.substr (0, 6) != "Basic "))
return false;
std::string strUserPass64 = it->second.substr (6);
boost::trim (strUserPass64);
std::string strUserPass = beast::detail::base64_decode (strUserPass64);
std::string::size_type nColon = strUserPass.find (":");
if (nColon == std::string::npos)
return false;
std::string strUser = strUserPass.substr (0, nColon);
std::string strPassword = strUserPass.substr (nColon + 1);
return strUser == port.user && strPassword == port.password;
}
ServerHandlerImp::ServerHandlerImp (Application& app, Stoppable& parent,
boost::asio::io_service& io_service, JobQueue& jobQueue,
NetworkOPs& networkOPs, Resource::Manager& resourceManager,
CollectorManager& cm)
: Stoppable("ServerHandler", parent)
, app_ (app)
, m_resourceManager (resourceManager)
, m_journal (app_.journal("Server"))
, m_networkOPs (networkOPs)
, m_server (make_Server(
*this, io_service, app_.journal("Server")))
, m_jobQueue (jobQueue)
{
auto const& group (cm.group ("rpc"));
rpc_requests_ = group->make_counter ("requests");
rpc_size_ = group->make_event ("size");
rpc_time_ = group->make_event ("time");
}
ServerHandlerImp::~ServerHandlerImp()
{
m_server = nullptr;
}
void
ServerHandlerImp::setup (Setup const& setup, beast::Journal journal)
{
setup_ = setup;
m_server->ports (setup.ports);
}
//------------------------------------------------------------------------------
void
ServerHandlerImp::onStop()
{
m_server->close();
}
//------------------------------------------------------------------------------
bool
ServerHandlerImp::onAccept (Session& session,
boost::asio::ip::tcp::endpoint endpoint)
{
std::lock_guard<std::mutex> l(countlock_);
auto const c = ++count_[session.port()];
if (session.port().limit && c >= session.port().limit)
{
JLOG (m_journal.trace()) <<
session.port().name << " is full; dropping " <<
endpoint;
return false;
}
return true;
}
auto
ServerHandlerImp::onHandoff (Session& session,
std::unique_ptr <beast::asio::ssl_bundle>&& bundle,
http_request_type&& request,
boost::asio::ip::tcp::endpoint remote_address) ->
Handoff
{
const bool is_ws =
(session.port().protocol.count("wss") > 0) ||
(session.port().protocol.count("wss2") > 0);
if(beast::websocket::is_upgrade(request))
{
if(is_ws)
{
Handoff handoff;
auto const ws = session.websocketUpgrade();
auto is = std::make_shared<WSInfoSub>(m_networkOPs, ws);
is->getConsumer() = requestInboundEndpoint(
m_resourceManager,
beast::IPAddressConversion::from_asio(remote_address),
session.port(), is->user());
ws->appDefined = std::move(is);
ws->run();
handoff.moved = true;
return handoff;
}
return unauthorizedResponse(request);
}
if(session.port().protocol.count("peer") > 0)
{
return app_.overlay().onHandoff(std::move(bundle),
std::move(request), remote_address);
}
if (is_ws && isStatusRequest(request))
return statusResponse(request);
// Pass to legacy onRequest
return {};
}
auto
ServerHandlerImp::onHandoff (Session& session,
boost::asio::ip::tcp::socket&& socket,
http_request_type&& request,
boost::asio::ip::tcp::endpoint remote_address) ->
Handoff
{
if(beast::websocket::is_upgrade(request))
{
if (session.port().protocol.count("ws2") > 0 ||
session.port().protocol.count("ws") > 0)
{
Handoff handoff;
auto const ws = session.websocketUpgrade();
auto is = std::make_shared<WSInfoSub>(m_networkOPs, ws);
is->getConsumer() = requestInboundEndpoint(
m_resourceManager, beast::IPAddressConversion::from_asio(
remote_address), session.port(), is->user());
ws->appDefined = std::move(is);
ws->run();
handoff.moved = true;
return handoff;
}
return unauthorizedResponse(request);
}
if ((session.port().protocol.count("ws") > 0 ||
session.port().protocol.count("ws2") > 0) &&
isStatusRequest(request))
return statusResponse(request);
// Otherwise pass to legacy onRequest or websocket
return {};
}
static inline
Json::Output makeOutput (Session& session)
{
return [&](beast::string_view const& b)
{
session.write (b.data(), b.size());
};
}
// HACK!
static
std::map<std::string, std::string>
build_map(beast::http::fields const& h)
{
std::map <std::string, std::string> c;
for (auto const& e : h)
{
auto key (e.name_string().to_string());
// TODO Replace with safe C++14 version
std::transform (key.begin(), key.end(), key.begin(), ::tolower);
c [key] = e.value().to_string();
}
return c;
}
template<class ConstBufferSequence>
static
std::string
buffers_to_string(ConstBufferSequence const& bs)
{
using boost::asio::buffer_cast;
using boost::asio::buffer_size;
std::string s;
s.reserve(buffer_size(bs));
for(auto const& b : bs)
s.append(buffer_cast<char const*>(b),
buffer_size(b));
return s;
}
void
ServerHandlerImp::onRequest (Session& session)
{
// Make sure RPC is enabled on the port
if (session.port().protocol.count("http") == 0 &&
session.port().protocol.count("https") == 0)
{
HTTPReply (403, "Forbidden", makeOutput (session), app_.journal ("RPC"));
session.close (true);
return;
}
// Check user/password authorization
if (! authorized (
session.port(), build_map(session.request())))
{
HTTPReply (403, "Forbidden", makeOutput (session), app_.journal ("RPC"));
session.close (true);
return;
}
std::shared_ptr<Session> detachedSession = session.detach();
auto const postResult = m_jobQueue.postCoro(jtCLIENT, "RPC-Client",
[this, detachedSession](std::shared_ptr<JobQueue::Coro> coro)
{
processSession(detachedSession, coro);
});
if (postResult == nullptr)
{
// The coroutine was rejected, probably because we're shutting down.
HTTPReply(503, "Service Unavailable",
makeOutput(*detachedSession), app_.journal("RPC"));
detachedSession->close(true);
return;
}
}
void
ServerHandlerImp::onWSMessage(
std::shared_ptr<WSSession> session,
std::vector<boost::asio::const_buffer> const& buffers)
{
Json::Value jv;
auto const size = boost::asio::buffer_size(buffers);
if (size > RPC::Tuning::maxRequestSize ||
! Json::Reader{}.parse(jv, buffers) ||
! jv ||
! jv.isObject())
{
Json::Value jvResult(Json::objectValue);
jvResult[jss::type] = jss::error;
jvResult[jss::error] = "jsonInvalid";
jvResult[jss::value] = buffers_to_string(buffers);
beast::multi_buffer sb;
Json::stream(jvResult,
[&sb](auto const p, auto const n)
{
sb.commit(boost::asio::buffer_copy(
sb.prepare(n), boost::asio::buffer(p, n)));
});
JLOG(m_journal.trace())
<< "Websocket sending '" << jvResult << "'";
session->send(std::make_shared<
StreambufWSMsg<decltype(sb)>>(std::move(sb)));
session->complete();
return;
}
JLOG(m_journal.trace())
<< "Websocket received '" << jv << "'";
auto const postResult = m_jobQueue.postCoro(jtCLIENT, "WS-Client",
[this, session, jv = std::move(jv)]
(std::shared_ptr<JobQueue::Coro> const& coro)
{
auto const jr =
this->processSession(session, coro, jv);
auto const s = to_string(jr);
auto const n = s.length();
beast::multi_buffer sb(n);
sb.commit(boost::asio::buffer_copy(
sb.prepare(n), boost::asio::buffer(s.c_str(), n)));
session->send(std::make_shared<
StreambufWSMsg<decltype(sb)>>(std::move(sb)));
session->complete();
});
if (postResult == nullptr)
{
// The coroutine was rejected, probably because we're shutting down.
session->close();
}
}
void
ServerHandlerImp::onClose (Session& session,
boost::system::error_code const&)
{
std::lock_guard<std::mutex> l(countlock_);
--count_[session.port()];
}
void
ServerHandlerImp::onStopped (Server&)
{
stopped();
}
//------------------------------------------------------------------------------
Json::Value
ServerHandlerImp::processSession(
std::shared_ptr<WSSession> const& session,
std::shared_ptr<JobQueue::Coro> const& coro,
Json::Value const& jv)
{
auto is = std::static_pointer_cast<WSInfoSub> (session->appDefined);
if (is->getConsumer().disconnect())
{
session->close();
// FIX: This rpcError is not delivered since the session
// was just closed.
return rpcError(rpcSLOW_DOWN);
}
// Requests without "command" are invalid.
Json::Value jr(Json::objectValue);
if ((!jv.isMember(jss::command) && !jv.isMember(jss::method)) ||
(jv.isMember(jss::command) && jv.isMember(jss::method) &&
jv[jss::command].asString() != jv[jss::method].asString()))
{
jr[jss::type] = jss::response;
jr[jss::status] = jss::error;
jr[jss::error] = jss::missingCommand;
jr[jss::request] = jv;
if (jv.isMember (jss::id))
jr[jss::id] = jv[jss::id];
if (jv.isMember(jss::jsonrpc))
jr[jss::jsonrpc] = jv[jss::jsonrpc];
if (jv.isMember(jss::ripplerpc))
jr[jss::ripplerpc] = jv[jss::ripplerpc];
is->getConsumer().charge(Resource::feeInvalidRPC);
return jr;
}
Resource::Charge loadType = Resource::feeReferenceRPC;
auto required = RPC::roleRequired(jv.isMember(jss::command) ?
jv[jss::command].asString() :
jv[jss::method].asString());
auto role = requestRole(
required,
session->port(),
jv,
beast::IP::from_asio(session->remote_endpoint().address()),
is->user());
if (Role::FORBID == role)
{
loadType = Resource::feeInvalidRPC;
jr[jss::result] = rpcError (rpcFORBIDDEN);
}
else
{
RPC::Context context{
app_.journal("RPCHandler"),
jv,
app_,
loadType,
app_.getOPs(),
app_.getLedgerMaster(),
is->getConsumer(),
role,
coro,
is,
{is->user(), is->forwarded_for()}
};
RPC::doCommand(context, jr[jss::result]);
}
is->getConsumer().charge(loadType);
if (is->getConsumer().warn())
jr[jss::warning] = jss::load;
// Currently we will simply unwrap errors returned by the RPC
// API, in the future maybe we can make the responses
// consistent.
//
// Regularize result. This is duplicate code.
if (jr[jss::result].isMember(jss::error))
{
jr = jr[jss::result];
jr[jss::status] = jss::error;
jr[jss::request] = jv;
}
else
{
jr[jss::status] = jss::success;
// For testing resource limits on this connection.
if (is->getConsumer().isUnlimited() &&
jv[jss::command].asString() == "ping")
jr[jss::unlimited] = true;
}
if (jv.isMember(jss::id))
jr[jss::id] = jv[jss::id];
if (jv.isMember(jss::jsonrpc))
jr[jss::jsonrpc] = jv[jss::jsonrpc];
if (jv.isMember(jss::ripplerpc))
jr[jss::ripplerpc] = jv[jss::ripplerpc];
jr[jss::type] = jss::response;
return jr;
}
// Run as a coroutine.
void
ServerHandlerImp::processSession (std::shared_ptr<Session> const& session,
std::shared_ptr<JobQueue::Coro> coro)
{
processRequest (
session->port(), buffers_to_string(
session->request().body.data()),
session->remoteAddress().at_port (0),
makeOutput (*session), coro,
[&]
{
auto const iter =
session->request().find(
"X-Forwarded-For");
if(iter != session->request().end())
return iter->value().to_string();
return std::string{};
}(),
[&]
{
auto const iter =
session->request().find(
"X-User");
if(iter != session->request().end())
return iter->value().to_string();
return std::string{};
}());
if(beast::rfc2616::is_keep_alive(session->request()))
session->complete();
else
session->close (true);
}
void
ServerHandlerImp::processRequest (Port const& port,
std::string const& request, beast::IP::Endpoint const& remoteIPAddress,
Output&& output, std::shared_ptr<JobQueue::Coro> coro,
std::string forwardedFor, std::string user)
{
auto rpcJ = app_.journal ("RPC");
Json::Value jsonRPC;
{
Json::Reader reader;
if ((request.size () > RPC::Tuning::maxRequestSize) ||
! reader.parse (request, jsonRPC) ||
! jsonRPC ||
! jsonRPC.isObject ())
{
HTTPReply (400, "Unable to parse request", output, rpcJ);
return;
}
}
/* ---------------------------------------------------------------------- */
// Determine role/usage so we can charge for invalid requests
Json::Value const& method = jsonRPC [jss::method];
auto role = Role::FORBID;
auto required = RPC::roleRequired(method.asString());
if (jsonRPC.isMember(jss::params) &&
jsonRPC[jss::params].isArray() &&
jsonRPC[jss::params].size() > 0 &&
jsonRPC[jss::params][Json::UInt(0)].isObject())
{
role = requestRole(required, port, jsonRPC[jss::params][Json::UInt(0)],
remoteIPAddress, user);
}
else
{
role = requestRole(required, port, Json::objectValue,
remoteIPAddress, user);
}
Resource::Consumer usage;
if (isUnlimited(role))
{
usage = m_resourceManager.newUnlimitedEndpoint(
remoteIPAddress.to_string());
}
else
{
usage = m_resourceManager.newInboundEndpoint(remoteIPAddress);
if (usage.disconnect())
{
HTTPReply(503, "Server is overloaded", output, rpcJ);
return;
}
}
if (role == Role::FORBID)
{
usage.charge(Resource::feeInvalidRPC);
HTTPReply (403, "Forbidden", output, rpcJ);
return;
}
if (method.isNull())
{
usage.charge(Resource::feeInvalidRPC);
HTTPReply (400, "Null method", output, rpcJ);
return;
}
if (! method.isString ())
{
usage.charge(Resource::feeInvalidRPC);
HTTPReply (400, "method is not string", output, rpcJ);
return;
}
std::string strMethod = method.asString ();
if (strMethod.empty())
{
usage.charge(Resource::feeInvalidRPC);
HTTPReply (400, "method is empty", output, rpcJ);
return;
}
// Extract request parameters from the request Json as `params`.
//
// If the field "params" is empty, `params` is an empty object.
//
// Otherwise, that field must be an array of length 1 (why?)
// and we take that first entry and validate that it's an object.
Json::Value params = jsonRPC [jss::params];
if (! params)
params = Json::Value (Json::objectValue);
else if (!params.isArray () || params.size() != 1)
{
usage.charge(Resource::feeInvalidRPC);
HTTPReply (400, "params unparseable", output, rpcJ);
return;
}
else
{
params = std::move (params[0u]);
if (!params.isObject())
{
usage.charge(Resource::feeInvalidRPC);
HTTPReply (400, "params unparseable", output, rpcJ);
return;
}
}
/**
* Clear header-assigned values if not positively identified from a
* secure_gateway.
*/
if (role != Role::IDENTIFIED)
{
forwardedFor.clear();
user.clear();
}
JLOG(m_journal.debug()) << "Query: " << strMethod << params;
// Provide the JSON-RPC method as the field "command" in the request.
params[jss::command] = strMethod;
JLOG (m_journal.trace())
<< "doRpcCommand:" << strMethod << ":" << params;
Resource::Charge loadType = Resource::feeReferenceRPC;
auto const start (std::chrono::high_resolution_clock::now ());
RPC::Context context {m_journal, params, app_, loadType, m_networkOPs,
app_.getLedgerMaster(), usage, role, coro, InfoSub::pointer(),
{user, forwardedFor}};
Json::Value result;
RPC::doCommand (context, result);
// Always report "status". On an error report the request as received.
if (result.isMember (jss::error))
{
result[jss::status] = jss::error;
result[jss::request] = params;
JLOG (m_journal.debug()) <<
"rpcError: " << result [jss::error] <<
": " << result [jss::error_message];
}
else
{
result[jss::status] = jss::success;
}
usage.charge (loadType);
if (usage.warn())
result[jss::warning] = jss::load;
Json::Value reply (Json::objectValue);
reply[jss::result] = std::move (result);
if (jsonRPC.isMember(jss::jsonrpc))
reply[jss::jsonrpc] = jsonRPC[jss::jsonrpc];
if (jsonRPC.isMember(jss::ripplerpc))
reply[jss::ripplerpc] = jsonRPC[jss::ripplerpc];
if (jsonRPC.isMember(jss::id))
reply[jss::id] = jsonRPC[jss::id];
auto response = to_string (reply);
rpc_time_.notify (static_cast <beast::insight::Event::value_type> (
std::chrono::duration_cast <std::chrono::milliseconds> (
std::chrono::high_resolution_clock::now () - start)));
++rpc_requests_;
rpc_size_.notify (static_cast <beast::insight::Event::value_type> (
response.size ()));
response += '\n';
if (auto stream = m_journal.debug())
{
static const int maxSize = 10000;
if (response.size() <= maxSize)
stream << "Reply: " << response;
else
stream << "Reply: " << response.substr (0, maxSize);
}
HTTPReply (200, response, output, rpcJ);
}
//------------------------------------------------------------------------------
/* This response is used with load balancing.
If the server is overloaded, status 500 is reported. Otherwise status 200
is reported, meaning the server can accept more connections.
*/
Handoff
ServerHandlerImp::statusResponse(
http_request_type const& request) const
{
using namespace beast::http;
Handoff handoff;
response<string_body> msg;
std::string reason;
if (app_.serverOkay(reason))
{
msg.result(beast::http::status::ok);
msg.body = "<!DOCTYPE html><html><head><title>" + systemName() +
" Test page for rippled</title></head><body><h1>" +
systemName() + " Test</h1><p>This page shows rippled http(s) "
"connectivity is working.</p></body></html>";
}
else
{
msg.result(beast::http::status::internal_server_error);
msg.body = "<HTML><BODY>Server cannot accept clients: " +
reason + "</BODY></HTML>";
}
msg.version = request.version;
msg.insert("Server", BuildInfo::getFullVersionString());
msg.insert("Content-Type", "text/html");
msg.insert("Connection", "close");
msg.prepare_payload();
handoff.response = std::make_shared<SimpleWriter>(msg);
return handoff;
}
//------------------------------------------------------------------------------
void
ServerHandler::Setup::makeContexts()
{
for(auto& p : ports)
{
if (p.secure())
{
if (p.ssl_key.empty() && p.ssl_cert.empty() &&
p.ssl_chain.empty())
p.context = make_SSLContext(p.ssl_ciphers);
else
p.context = make_SSLContextAuthed (
p.ssl_key, p.ssl_cert, p.ssl_chain,
p.ssl_ciphers);
}
else
{
p.context = std::make_shared<
boost::asio::ssl::context>(
boost::asio::ssl::context::sslv23);
}
}
}
static
Port
to_Port(ParsedPort const& parsed, std::ostream& log)
{
Port p;
p.name = parsed.name;
if (! parsed.ip)
{
log << "Missing 'ip' in [" << p.name << "]\n";
Throw<std::exception> ();
}
p.ip = *parsed.ip;
if (! parsed.port)
{
log << "Missing 'port' in [" << p.name << "]\n";
Throw<std::exception> ();
}
else if (*parsed.port == 0)
{
log << "Port " << *parsed.port << "in [" << p.name << "] is invalid\n";
Throw<std::exception> ();
}
p.port = *parsed.port;
if (parsed.admin_ip)
p.admin_ip = *parsed.admin_ip;
if (parsed.secure_gateway_ip)
p.secure_gateway_ip = *parsed.secure_gateway_ip;
if (parsed.protocol.empty())
{
log << "Missing 'protocol' in [" << p.name << "]\n";
Throw<std::exception> ();
}
p.protocol = parsed.protocol;
p.user = parsed.user;
p.password = parsed.password;
p.admin_user = parsed.admin_user;
p.admin_password = parsed.admin_password;
p.ssl_key = parsed.ssl_key;
p.ssl_cert = parsed.ssl_cert;
p.ssl_chain = parsed.ssl_chain;
p.ssl_ciphers = parsed.ssl_ciphers;
p.pmd_options = parsed.pmd_options;
p.ws_queue_limit = parsed.ws_queue_limit;
p.limit = parsed.limit;
return p;
}
static
std::vector<Port>
parse_Ports (
Config const& config,
std::ostream& log)
{
std::vector<Port> result;
if (! config.exists("server"))
{
log <<
"Required section [server] is missing\n";
Throw<std::exception> ();
}
ParsedPort common;
parse_Port (common, config["server"], log);
auto const& names = config.section("server").values();
result.reserve(names.size());
for (auto const& name : names)
{
if (! config.exists(name))
{
log <<
"Missing section: [" << name << "]\n";
Throw<std::exception> ();
}
ParsedPort parsed = common;
parsed.name = name;
parse_Port(parsed, config[name], log);
result.push_back(to_Port(parsed, log));
}
if (config.standalone())
{
auto it = result.begin ();
while (it != result.end())
{
auto& p = it->protocol;
// Remove the peer protocol, and if that would
// leave the port empty, remove the port as well
if (p.erase ("peer") && p.empty())
it = result.erase (it);
else
++it;
}
}
else
{
auto const count = std::count_if (
result.cbegin(), result.cend(),
[](Port const& p)
{
return p.protocol.count("peer") != 0;
});
if (count > 1)
{
log << "Error: More than one peer protocol configured in [server]\n";
Throw<std::exception> ();
}
if (count == 0)
log << "Warning: No peer protocol configured\n";
}
return result;
}
// Fill out the client portion of the Setup
static
void
setup_Client (ServerHandler::Setup& setup)
{
decltype(setup.ports)::const_iterator iter;
for (iter = setup.ports.cbegin();
iter != setup.ports.cend(); ++iter)
if (iter->protocol.count("http") > 0 ||
iter->protocol.count("https") > 0)
break;
if (iter == setup.ports.cend())
return;
setup.client.secure =
iter->protocol.count("https") > 0;
setup.client.ip = iter->ip.to_string();
// VFALCO HACK! to make localhost work
if (setup.client.ip == "0.0.0.0")
setup.client.ip = "127.0.0.1";
setup.client.port = iter->port;
setup.client.user = iter->user;
setup.client.password = iter->password;
setup.client.admin_user = iter->admin_user;
setup.client.admin_password = iter->admin_password;
}
// Fill out the overlay portion of the Setup
static
void
setup_Overlay (ServerHandler::Setup& setup)
{
auto const iter = std::find_if(
setup.ports.cbegin(), setup.ports.cend(),
[](Port const& port)
{
return port.protocol.count("peer") != 0;
});
if (iter == setup.ports.cend())
{
setup.overlay.port = 0;
return;
}
setup.overlay.ip = iter->ip;
setup.overlay.port = iter->port;
}
ServerHandler::Setup
setup_ServerHandler(
Config const& config,
std::ostream&& log)
{
ServerHandler::Setup setup;
setup.ports = parse_Ports(config, log);
setup_Client(setup);
setup_Overlay(setup);
return setup;
}
std::unique_ptr <ServerHandler>
make_ServerHandler (Application& app, Stoppable& parent,
boost::asio::io_service& io_service, JobQueue& jobQueue,
NetworkOPs& networkOPs, Resource::Manager& resourceManager,
CollectorManager& cm)
{
return std::make_unique<ServerHandlerImp>(app, parent,
io_service, jobQueue, networkOPs, resourceManager, cm);
}
} // ripple
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