You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
87 lines
2.1 KiB
87 lines
2.1 KiB
/*
|
|
This file is part of cpp-ethereum.
|
|
|
|
cpp-ethereum is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
cpp-ethereum is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
/** @file Common.cpp
|
|
* @author Gav Wood <i@gavwood.com>
|
|
* @date 2014
|
|
*/
|
|
|
|
#include "Common.h"
|
|
|
|
#include <libdevcrypto/SHA3.h>
|
|
#include "Message.h"
|
|
using namespace std;
|
|
using namespace dev;
|
|
using namespace dev::p2p;
|
|
using namespace dev::shh;
|
|
|
|
Topic BuildTopic::toTopic() const
|
|
{
|
|
Topic ret;
|
|
ret.reserve(m_parts.size());
|
|
for (auto const& h: m_parts)
|
|
ret.push_back(TopicPart(h));
|
|
return ret;
|
|
}
|
|
|
|
BuildTopic& BuildTopic::shiftBytes(bytes const& _b)
|
|
{
|
|
m_parts.push_back(dev::sha3(_b));
|
|
return *this;
|
|
}
|
|
|
|
h256 TopicFilter::sha3() const
|
|
{
|
|
RLPStream s;
|
|
streamRLP(s);
|
|
return dev::sha3(s.out());
|
|
}
|
|
|
|
bool TopicFilter::matches(Envelope const& _e) const
|
|
{
|
|
for (TopicMask const& t: m_topicMasks)
|
|
{
|
|
for (unsigned i = 0; i < t.size(); ++i)
|
|
{
|
|
for (auto et: _e.topics())
|
|
if (((t[i].first ^ et) & t[i].second) == 0)
|
|
goto NEXT_TOPICPART;
|
|
// failed to match topicmask against any topics: move on to next mask
|
|
goto NEXT_TOPICMASK;
|
|
NEXT_TOPICPART:;
|
|
}
|
|
// all topicmasks matched.
|
|
return true;
|
|
NEXT_TOPICMASK:;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
TopicMask BuildTopicMask::toTopicMask() const
|
|
{
|
|
TopicMask ret;
|
|
ret.reserve(m_parts.size());
|
|
for (auto const& h: m_parts)
|
|
ret.push_back(make_pair(TopicPart(h), ~TopicPart()));
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
web3.shh.watch({}).arrived(function(m) { env.note("New message:\n"+JSON.stringify(m)); })
|
|
k = web3.shh.newIdentity()
|
|
web3.shh.post({from: k, topic: web3.fromAscii("test"), payload: web3.fromAscii("Hello world!")})
|
|
*/
|
|
|
|
|