// FIXME: This leaks RPCSub objects for JSON-RPC. Shouldn't matter for anyone
// sane.
Json::Value doUnsubscribe (RPC::Context& context)
{
InfoSub::pointer ispSub;
Json::Value jvResult (Json::objectValue);
if (!context.infoSub && !context.params.isMember (jss::url))
{
// Must be a JSON-RPC call.
return rpcError (rpcINVALID_PARAMS);
}
if (context.params.isMember (jss::url))
{
if (context.role != Role::ADMIN)
return rpcError (rpcNO_PERMISSION);
std::string strUrl = context.params[jss::url].asString ();
ispSub = context.netOps.findRpcSub (strUrl);
if (!ispSub)
return jvResult;
}
else
{
ispSub = context.infoSub;
}
if (context.params.isMember (jss::streams))
{
for (auto& it: context.params[jss::streams])
{
if (it.isString ())
{
std::string streamName = it.asString ();
if (streamName == "server")
context.netOps.unsubServer (ispSub->getSeq ());
else if (streamName == "ledger")
context.netOps.unsubLedger (ispSub->getSeq ());
else if (streamName == "transactions")
context.netOps.unsubTransactions (ispSub->getSeq ());
else if (streamName == "transactions_proposed"
|| streamName == "rt_transactions") // DEPRECATED
context.netOps.unsubRTTransactions (ispSub->getSeq ());
else
jvResult[jss::error] = "Unknown stream: " + streamName;
}
else
{
jvResult[jss::error] = "malformedSteam";
}
}
}
if (context.params.isMember (jss::accounts_proposed)
|| context.params.isMember (jss::rt_accounts))
{
auto accounts = RPC::parseAccountIds (
context.params.isMember (jss::accounts_proposed)
? context.params[jss::accounts_proposed]
: context.params[jss::rt_accounts]); // DEPRECATED
if (accounts.empty ())
jvResult[jss::error] = "malformedAccount";
else
context.netOps.unsubAccount (ispSub, accounts, true);
}
if (context.params.isMember (jss::accounts))
{
auto accounts = RPC::parseAccountIds (context.params[jss::accounts]);
if (accounts.empty ())
jvResult[jss::error] = "malformedAccount";
else
context.netOps.unsubAccount (ispSub, accounts, false);
}
if (!context.params.isMember (jss::books))
{
}
else if (!context.params[jss::books].isArray ())
{
return rpcError (rpcINVALID_PARAMS);
}
else
{
for (auto& jv: context.params[jss::books])
{
if (!jv.isObject ()
|| !jv.isMember (jss::taker_pays)
|| !jv.isMember (jss::taker_gets)
|| !jv[jss::taker_pays].isObject ()
|| !jv[jss::taker_gets].isObject ())
return rpcError (rpcINVALID_PARAMS);
bool bBoth = (jv.isMember (jss::both) && jv[jss::both].asBool ()) ||
(jv.isMember (jss::both_sides) && jv[jss::both_sides].asBool ());
// both_sides is deprecated.
Json::Value taker_pays = jv[jss::taker_pays];
Json::Value taker_gets = jv[jss::taker_gets];
Book book;
// Parse mandatory currency.
if (!taker_pays.isMember (jss::currency)
|| !to_currency (
book.in.currency, taker_pays[jss::currency].asString ()))
{
WriteLog (lsINFO, RPCHandler) << "Bad taker_pays currency.";
return rpcError (rpcSRC_CUR_MALFORMED);
}
// Parse optional issuer.
else if (((taker_pays.isMember (jss::issuer))
&& (!taker_pays[jss::issuer].isString ()
|| !to_issuer (
book.in.account, taker_pays[jss::issuer].asString ())))
// Don't allow illegal issuers.
|| !isConsistent (book.in)
|| noAccount() == book.in.account)
{
WriteLog (lsINFO, RPCHandler) << "Bad taker_pays issuer.";
return rpcError (rpcSRC_ISR_MALFORMED);
}
// Parse mandatory currency.
if (!taker_gets.isMember (jss::currency)
|| !to_currency (book.out.currency,
taker_gets[jss::currency].asString ()))
{
WriteLog (lsINFO, RPCHandler) << "Bad taker_pays currency.";
return rpcError (rpcSRC_CUR_MALFORMED);
}
// Parse optional issuer.
else if (((taker_gets.isMember (jss::issuer))
&& (!taker_gets[jss::issuer].isString ()
|| !to_issuer (book.out.account,
taker_gets[jss::issuer].asString ())))
// Don't allow illegal issuers.
|| !isConsistent (book.out)
|| noAccount() == book.out.account)
{
WriteLog (lsINFO, RPCHandler) << "Bad taker_gets issuer.";
return rpcError (rpcDST_ISR_MALFORMED);
}
if (book.in == book.out)
{
WriteLog (lsINFO, RPCHandler)
<< "taker_gets same as taker_pays.";
return rpcError (rpcBAD_MARKET);
}
context.netOps.unsubBook (ispSub->getSeq (), book);
if (bBoth)
context.netOps.unsubBook (ispSub->getSeq (), book);
}
}
return jvResult;
}
void PathRequests::updateAll (Ledger::ref inLedger, CancelCallback shouldCancel)
{
std::vector<PathRequest::wptr> requests;
LoadEvent::autoptr event (getApp().getJobQueue().getLoadEventAP(jtPATH_FIND, "PathRequest::updateAll"));
// Get the ledger and cache we should be using
Ledger::pointer ledger = inLedger;
RippleLineCache::pointer cache;
{
ScopedLockType sl (mLock);
requests = mRequests;
cache = getLineCache (ledger, true);
}
bool newRequests = getApp().getLedgerMaster().isNewPathRequest();
bool mustBreak = false;
mJournal.trace << "updateAll seq=" << ledger->getLedgerSeq() << ", " <<
requests.size() << " requests";
int processed = 0, removed = 0;
do
{
BOOST_FOREACH (PathRequest::wref wRequest, requests)
{
if (shouldCancel())
break;
bool remove = true;
PathRequest::pointer pRequest = wRequest.lock ();
if (pRequest)
{
if (!pRequest->needsUpdate (newRequests, ledger->getLedgerSeq ()))
remove = false;
else
{
InfoSub::pointer ipSub = pRequest->getSubscriber ();
if (ipSub)
{
ipSub->getConsumer ().charge (Resource::feePathFindUpdate);
if (!ipSub->getConsumer ().warn ())
{
Json::Value update = pRequest->doUpdate (cache, false);
pRequest->updateComplete ();
update["type"] = "path_find";
ipSub->send (update, false);
remove = false;
++processed;
}
}
}
}
if (remove)
{
PathRequest::pointer pRequest = wRequest.lock ();
ScopedLockType sl (mLock);
// Remove any dangling weak pointers or weak pointers that refer to this path request.
std::vector<PathRequest::wptr>::iterator it = mRequests.begin();
while (it != mRequests.end())
{
PathRequest::pointer itRequest = it->lock ();
if (!itRequest || (itRequest == pRequest))
{
++removed;
it = mRequests.erase (it);
}
else
++it;
}
}
mustBreak = !newRequests && getApp().getLedgerMaster().isNewPathRequest();
if (mustBreak) // We weren't handling new requests and then there was a new request
break;
}
if (mustBreak)
{ // a new request came in while we were working
newRequests = true;
}
else if (newRequests)
{ // we only did new requests, so we always need a last pass
newRequests = getApp().getLedgerMaster().isNewPathRequest();
}
else
{ // check if there are any new requests, otherwise we are done
newRequests = getApp().getLedgerMaster().isNewPathRequest();
if (!newRequests) // We did a full pass and there are no new requests
return;
}
{
// Get the latest requests, cache, and ledger for next pass
ScopedLockType sl (mLock);
if (mRequests.empty())
break;
requests = mRequests;
cache = getLineCache (ledger, false);
}
}
while (!shouldCancel ());
mJournal.debug << "updateAll complete " << processed << " process and " <<
removed << " removed";
}
Json::Value doUnsubscribe (RPC::Context& context)
{
InfoSub::pointer ispSub;
Json::Value jvResult (Json::objectValue);
bool removeUrl {false};
if (! context.infoSub && ! context.params.isMember(jss::url))
{
// Must be a JSON-RPC call.
return rpcError(rpcINVALID_PARAMS);
}
if (context.params.isMember(jss::url))
{
if (context.role != Role::ADMIN)
return rpcError(rpcNO_PERMISSION);
std::string strUrl = context.params[jss::url].asString ();
ispSub = context.netOps.findRpcSub (strUrl);
if (! ispSub)
return jvResult;
removeUrl = true;
}
else
{
ispSub = context.infoSub;
}
if (context.params.isMember (jss::streams))
{
if (! context.params[jss::streams].isArray ())
return rpcError (rpcINVALID_PARAMS);
for (auto& it: context.params[jss::streams])
{
if (! it.isString())
return rpcError(rpcSTREAM_MALFORMED);
std::string streamName = it.asString ();
if (streamName == "server")
{
context.netOps.unsubServer (ispSub->getSeq ());
}
else if (streamName == "ledger")
{
context.netOps.unsubLedger (ispSub->getSeq ());
}
else if (streamName == "manifests")
{
context.netOps.unsubManifests (ispSub->getSeq ());
}
else if (streamName == "transactions")
{
context.netOps.unsubTransactions (ispSub->getSeq ());
}
else if (streamName == "transactions_proposed"
|| streamName == "rt_transactions") // DEPRECATED
{
context.netOps.unsubRTTransactions (ispSub->getSeq ());
}
else if (streamName == "validations")
{
context.netOps.unsubValidations (ispSub->getSeq ());
}
else if (streamName == "peer_status")
{
context.netOps.unsubPeerStatus (ispSub->getSeq ());
}
else
{
return rpcError(rpcSTREAM_MALFORMED);
}
}
}
auto accountsProposed = context.params.isMember(jss::accounts_proposed)
? jss::accounts_proposed : jss::rt_accounts; // DEPRECATED
if (context.params.isMember(accountsProposed))
{
if (! context.params[accountsProposed].isArray())
return rpcError(rpcINVALID_PARAMS);
auto ids = RPC::parseAccountIds(context.params[accountsProposed]);
if (ids.empty())
return rpcError(rpcACT_MALFORMED);
context.netOps.unsubAccount(ispSub, ids, true);
}
if (context.params.isMember(jss::accounts))
{
if (! context.params[jss::accounts].isArray())
return rpcError(rpcINVALID_PARAMS);
auto ids = RPC::parseAccountIds(context.params[jss::accounts]);
if (ids.empty())
return rpcError(rpcACT_MALFORMED);
context.netOps.unsubAccount(ispSub, ids, false);
}
if (context.params.isMember(jss::books))
{
if (! context.params[jss::books].isArray())
return rpcError(rpcINVALID_PARAMS);
for (auto& jv: context.params[jss::books])
{
if (! jv.isObject() ||
! jv.isMember(jss::taker_pays) ||
! jv.isMember(jss::taker_gets) ||
! jv[jss::taker_pays].isObject() ||
! jv[jss::taker_gets].isObject())
{
return rpcError(rpcINVALID_PARAMS);
}
Json::Value taker_pays = jv[jss::taker_pays];
Json::Value taker_gets = jv[jss::taker_gets];
Book book;
// Parse mandatory currency.
if (!taker_pays.isMember (jss::currency)
|| !to_currency (
book.in.currency, taker_pays[jss::currency].asString ()))
{
JLOG (context.j.info()) << "Bad taker_pays currency.";
return rpcError (rpcSRC_CUR_MALFORMED);
}
// Parse optional issuer.
else if (((taker_pays.isMember (jss::issuer))
&& (!taker_pays[jss::issuer].isString ()
|| !to_issuer (
book.in.account, taker_pays[jss::issuer].asString ())))
// Don't allow illegal issuers.
|| !isConsistent (book.in)
|| noAccount() == book.in.account)
{
JLOG (context.j.info()) << "Bad taker_pays issuer.";
return rpcError (rpcSRC_ISR_MALFORMED);
}
// Parse mandatory currency.
if (!taker_gets.isMember (jss::currency)
|| !to_currency (book.out.currency,
taker_gets[jss::currency].asString ()))
{
JLOG (context.j.info()) << "Bad taker_gets currency.";
return rpcError (rpcDST_AMT_MALFORMED);
}
// Parse optional issuer.
else if (((taker_gets.isMember (jss::issuer))
&& (!taker_gets[jss::issuer].isString ()
|| !to_issuer (book.out.account,
taker_gets[jss::issuer].asString ())))
// Don't allow illegal issuers.
|| !isConsistent (book.out)
|| noAccount() == book.out.account)
{
JLOG (context.j.info()) << "Bad taker_gets issuer.";
return rpcError (rpcDST_ISR_MALFORMED);
}
if (book.in == book.out)
{
JLOG (context.j.info())
<< "taker_gets same as taker_pays.";
return rpcError (rpcBAD_MARKET);
}
context.netOps.unsubBook (ispSub->getSeq (), book);
// both_sides is deprecated.
if ((jv.isMember(jss::both) && jv[jss::both].asBool()) ||
(jv.isMember(jss::both_sides) && jv[jss::both_sides].asBool()))
{
context.netOps.unsubBook(ispSub->getSeq(), reversed(book));
}
}
}
if (removeUrl)
{
context.netOps.tryRemoveRpcSub(context.params[jss::url].asString ());
}
return jvResult;
}