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Add /crawl cgi request feature to peer protocol (RIPD-729):

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This adds support for a cgi /crawl request, issued over HTTPS to the configured
peer protocol port. The response to the request is a JSON object containing
the node public key, type, and IP address of each directly connected neighbor.
The IP address is suppressed unless the neighbor has requested its address
to be revealed by adding "Crawl: public" to its HTTP headers. This field is
currently set by the peer_private option in the rippled.cfg file.
This commit is contained in:
Vinnie Falco
2015-01-24 07:08:03 -08:00
parent 0cc3ef8f90
commit 9c02cc1b17
14 changed files with 130 additions and 71 deletions
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51
src/ripple/overlay/impl/OverlayImpl.cpp
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@@ -27,6 +27,7 @@
#include <ripple/overlay/impl/TMHello.h>
#include <ripple/peerfinder/make_Manager.h>
#include <beast/ByteOrder.h>
#include <beast/crypto/base64.h>
#include <beast/http/rfc2616.h>
#include <beast/utility/ci_char_traits.h>
#include <beast/utility/WrappedSink.h>
@@ -193,6 +194,8 @@ OverlayImpl::onHandoff (std::unique_ptr <beast::asio::ssl_bundle>&& ssl_bundle,
beast::Journal journal (sink);
Handoff handoff;
if (processRequest(request, handoff))
return handoff;
if (! isPeerUpgrade(request))
return handoff;
@@ -461,8 +464,9 @@ OverlayImpl::onPrepare()
auto const port = serverHandler_.setup().overlay.port;
config.peerPrivate = getConfig().PEER_PRIVATE;
config.wantIncoming =
(! getConfig ().PEER_PRIVATE) && (port != 0);
(! config.peerPrivate) && (port != 0);
// if it's a private peer or we are running as standalone
// automatic connections would defeat the purpose.
config.autoConnect =
@@ -604,6 +608,34 @@ OverlayImpl::size()
return m_publicKeyMap.size ();
}
Json::Value
OverlayImpl::crawl()
{
Json::Value jv;
auto& av = jv["active"] = Json::Value(Json::arrayValue);
std::lock_guard <decltype(mutex_)> lock (mutex_);
for (auto const& e : m_publicKeyMap)
{
auto const sp = e.second.lock();
if (sp)
{
auto& pv = av.append(Json::Value(Json::objectValue));
pv["type"] = "peer";
pv["public_key"] = beast::base64_encode(
sp->getNodePublic().getNodePublic().data(),
sp->getNodePublic().getNodePublic().size());
if (sp->crawl())
{
if (sp->slot()->inbound())
pv["ip"] = sp->getRemoteAddress().address().to_string();
else
pv["ip"] = sp->getRemoteAddress().to_string();
}
}
}
return jv;
}
// Returns information on verified peers.
Json::Value
OverlayImpl::json ()
@@ -611,6 +643,23 @@ OverlayImpl::json ()
return foreach (get_peer_json());
}
bool
OverlayImpl::processRequest (beast::http::message const& req,
Handoff& handoff)
{
if (req.url() != "/crawl")
return false;
beast::http::message resp;
resp.request(false);
resp.status(200);
resp.reason("OK");
Json::Value v;
v["overlay"] = crawl();
handoff.response = HTTP::make_JsonWriter(resp, v);
return true;
}
Overlay::PeerSequence
OverlayImpl::getActivePeers()
{