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alert system

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-- version 0.3.11

git-svn-id: https://bitcoin.svn.sourceforge.net/svnroot/bitcoin/trunk@142 1a98c847-1fd6-4fd8-948a-caf3550aa51b
This commit is contained in:
s_nakamoto
2010-08-25 00:05:37 +00:00
parent 2201a0808e
commit 401926283a
8 changed files with 409 additions and 86 deletions
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200
main.cpp
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@@ -898,14 +898,7 @@ bool IsInitialBlockDownload()
pindexBest->GetBlockTime() < GetTime() - 24 * 60 * 60);
}
bool IsLockdown()
{
if (!pindexBest)
return false;
return (bnBestInvalidWork > bnBestChainWork + pindexBest->GetBlockWork() * 6);
}
void Lockdown(CBlockIndex* pindexNew)
void InvalidChainFound(CBlockIndex* pindexNew)
{
if (pindexNew->bnChainWork > bnBestInvalidWork)
{
@@ -913,11 +906,10 @@ void Lockdown(CBlockIndex* pindexNew)
CTxDB().WriteBestInvalidWork(bnBestInvalidWork);
MainFrameRepaint();
}
printf("Lockdown: invalid block=%s height=%d work=%s\n", pindexNew->GetBlockHash().ToString().substr(0,20).c_str(), pindexNew->nHeight, pindexNew->bnChainWork.ToString().c_str());
printf("Lockdown: current best=%s height=%d work=%s\n", hashBestChain.ToString().substr(0,20).c_str(), nBestHeight, bnBestChainWork.ToString().c_str());
printf("Lockdown: IsLockdown()=%d\n", (IsLockdown() ? 1 : 0));
if (IsLockdown())
printf("Lockdown: WARNING: Displayed transactions may not be correct! You may need to upgrade, or other nodes may need to upgrade.\n");
printf("InvalidChainFound: invalid block=%s height=%d work=%s\n", pindexNew->GetBlockHash().ToString().substr(0,20).c_str(), pindexNew->nHeight, pindexNew->bnChainWork.ToString().c_str());
printf("InvalidChainFound: current best=%s height=%d work=%s\n", hashBestChain.ToString().substr(0,20).c_str(), nBestHeight, bnBestChainWork.ToString().c_str());
if (pindexBest && bnBestInvalidWork > bnBestChainWork + pindexBest->GetBlockWork() * 6)
printf("InvalidChainFound: WARNING: Displayed transactions may not be correct! You may need to upgrade, or other nodes may need to upgrade.\n");
}
@@ -927,6 +919,9 @@ void Lockdown(CBlockIndex* pindexNew)
bool CTransaction::DisconnectInputs(CTxDB& txdb)
{
// Relinquish previous transactions' spent pointers
@@ -1282,7 +1277,7 @@ bool CBlock::SetBestChain(CTxDB& txdb, CBlockIndex* pindexNew)
if (!ConnectBlock(txdb, pindexNew) || !txdb.WriteHashBestChain(hash))
{
txdb.TxnAbort();
Lockdown(pindexNew);
InvalidChainFound(pindexNew);
return error("SetBestChain() : ConnectBlock failed");
}
txdb.TxnCommit();
@@ -1298,7 +1293,7 @@ bool CBlock::SetBestChain(CTxDB& txdb, CBlockIndex* pindexNew)
if (!Reorganize(txdb, pindexNew))
{
txdb.TxnAbort();
Lockdown(pindexNew);
InvalidChainFound(pindexNew);
return error("SetBestChain() : Reorganize failed");
}
}
@@ -1571,16 +1566,16 @@ bool ScanMessageStart(Stream& s)
}
}
bool CheckDiskSpace(int64 nAdditionalBytes)
bool CheckDiskSpace(uint64 nAdditionalBytes)
{
uint64 nFreeBytesAvailable = filesystem::space(GetDataDir()).available;
// Check for 15MB because database could create another 10MB log file at any time
if (nFreeBytesAvailable < (int64)15000000 + nAdditionalBytes)
if (nFreeBytesAvailable < (uint64)15000000 + nAdditionalBytes)
{
fShutdown = true;
string strMessage = _("Warning: Disk space is low ");
strWarning = strMessage;
strMiscWarning = strMessage;
printf("*** %s\n", strMessage.c_str());
ThreadSafeMessageBox(strMessage, "Bitcoin", wxOK | wxICON_EXCLAMATION);
CreateThread(Shutdown, NULL);
@@ -1648,17 +1643,7 @@ bool LoadBlockIndex(bool fAllowNew)
if (!fAllowNew)
return false;
// Genesis Block:
// GetHash() = 0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f
// hashMerkleRoot = 0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
// txNew.vin[0].scriptSig = 486604799 4 0x736B6E616220726F662074756F6C69616220646E6F63657320666F206B6E697262206E6F20726F6C6C65636E61684320393030322F6E614A2F33302073656D695420656854
// txNew.vout[0].nValue = 5000000000
// txNew.vout[0].scriptPubKey = 0x5F1DF16B2B704C8A578D0BBAF74D385CDE12C11EE50455F3C438EF4C3FBCF649B6DE611FEAE06279A60939E028A8D65C10B73071A6F16719274855FEB0FD8A6704 OP_CHECKSIG
// block.nVersion = 1
// block.nTime = 1231006505
// block.nBits = 0x1d00ffff
// block.nNonce = 2083236893
// CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
// CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
// CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
@@ -1672,9 +1657,7 @@ bool LoadBlockIndex(bool fAllowNew)
txNew.vout.resize(1);
txNew.vin[0].scriptSig = CScript() << 486604799 << CBigNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
txNew.vout[0].nValue = 50 * COIN;
CBigNum bnPubKey;
bnPubKey.SetHex("0x5F1DF16B2B704C8A578D0BBAF74D385CDE12C11EE50455F3C438EF4C3FBCF649B6DE611FEAE06279A60939E028A8D65C10B73071A6F16719274855FEB0FD8A6704");
txNew.vout[0].scriptPubKey = CScript() << bnPubKey << OP_CHECKSIG;
txNew.vout[0].scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
CBlock block;
block.vtx.push_back(txNew);
block.hashPrevBlock = 0;
@@ -1686,11 +1669,10 @@ bool LoadBlockIndex(bool fAllowNew)
//// debug print
printf("%s\n", block.GetHash().ToString().c_str());
printf("%s\n", block.hashMerkleRoot.ToString().c_str());
printf("%s\n", hashGenesisBlock.ToString().c_str());
txNew.vout[0].scriptPubKey.print();
block.print();
printf("%s\n", block.hashMerkleRoot.ToString().c_str());
assert(block.hashMerkleRoot == uint256("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
block.print();
assert(block.GetHash() == hashGenesisBlock);
@@ -1798,6 +1780,111 @@ void PrintBlockTree()
//////////////////////////////////////////////////////////////////////////////
//
// CAlert
//
map<uint256, CAlert> mapAlerts;
CCriticalSection cs_mapAlerts;
string GetWarnings(string strFor)
{
int nPriority = 0;
string strStatusBar;
string strRPC;
// Misc warnings like out of disk space and clock is wrong
if (strMiscWarning != "")
{
nPriority = 1000;
strStatusBar = strMiscWarning;
}
// Longer invalid proof-of-work chain
if (pindexBest && bnBestInvalidWork > bnBestChainWork + pindexBest->GetBlockWork() * 6)
{
nPriority = 2000;
strStatusBar = strRPC = "WARNING: Displayed transactions may not be correct! You may need to upgrade, or other nodes may need to upgrade.";
}
// Alerts
CRITICAL_BLOCK(cs_mapAlerts)
{
foreach(PAIRTYPE(const uint256, CAlert)& item, mapAlerts)
{
const CAlert& alert = item.second;
if (alert.AppliesToMe() && alert.nPriority > nPriority)
{
nPriority = alert.nPriority;
strStatusBar = alert.strStatusBar;
strRPC = alert.strRPCError;
}
}
}
if (strFor == "statusbar")
return strStatusBar;
else if (strFor == "rpc")
return strRPC;
assert(("GetWarnings() : invalid parameter", false));
return "error";
}
bool CAlert::ProcessAlert()
{
if (!CheckSignature())
return false;
if (!IsInEffect())
return false;
CRITICAL_BLOCK(cs_mapAlerts)
{
// Cancel previous alerts
for (map<uint256, CAlert>::iterator mi = mapAlerts.begin(); mi != mapAlerts.end();)
{
const CAlert& alert = (*mi).second;
if (Cancels(alert))
{
printf("cancelling alert %d\n", alert.nID);
mapAlerts.erase(mi++);
}
else if (!alert.IsInEffect())
{
printf("expiring alert %d\n", alert.nID);
mapAlerts.erase(mi++);
}
else
mi++;
}
// Check if this alert has been cancelled
foreach(PAIRTYPE(const uint256, CAlert)& item, mapAlerts)
{
const CAlert& alert = item.second;
if (alert.Cancels(*this))
{
printf("alert already cancelled by %d\n", alert.nID);
return false;
}
}
// Add to mapAlerts
mapAlerts.insert(make_pair(GetHash(), *this));
}
printf("accepted alert %d, AppliesToMe()=%d\n", nID, AppliesToMe());
MainFrameRepaint();
return true;
}
//////////////////////////////////////////////////////////////////////////////
//
// Messages
@@ -1827,7 +1914,7 @@ bool ProcessMessages(CNode* pfrom)
if (vRecv.empty())
return true;
//if (fDebug)
// printf("ProcessMessages(%d bytes)\n", vRecv.size());
// printf("ProcessMessages(%u bytes)\n", vRecv.size());
//
// Message format
@@ -1869,6 +1956,11 @@ bool ProcessMessages(CNode* pfrom)
// Message size
unsigned int nMessageSize = hdr.nMessageSize;
if (nMessageSize > MAX_SIZE)
{
printf("ProcessMessage(%s, %u bytes) : nMessageSize > MAX_SIZE\n", strCommand.c_str(), nMessageSize);
continue;
}
if (nMessageSize > vRecv.size())
{
// Rewind and wait for rest of message
@@ -1889,7 +1981,7 @@ bool ProcessMessages(CNode* pfrom)
memcpy(&nChecksum, &hash, sizeof(nChecksum));
if (nChecksum != hdr.nChecksum)
{
printf("ProcessMessage(%s, %d bytes) : CHECKSUM ERROR nChecksum=%08x hdr.nChecksum=%08x\n",
printf("ProcessMessage(%s, %u bytes) : CHECKSUM ERROR nChecksum=%08x hdr.nChecksum=%08x\n",
strCommand.c_str(), nMessageSize, nChecksum, hdr.nChecksum);
continue;
}
@@ -1906,15 +1998,15 @@ bool ProcessMessages(CNode* pfrom)
}
catch (std::ios_base::failure& e)
{
if (strstr(e.what(), "CDataStream::read() : end of data"))
if (strstr(e.what(), "end of data"))
{
// Allow exceptions from underlength message on vRecv
printf("ProcessMessage(%s, %d bytes) : Exception '%s' caught, normally caused by a message being shorter than its stated length\n", strCommand.c_str(), nMessageSize, e.what());
printf("ProcessMessage(%s, %u bytes) : Exception '%s' caught, normally caused by a message being shorter than its stated length\n", strCommand.c_str(), nMessageSize, e.what());
}
else if (strstr(e.what(), ": size too large"))
else if (strstr(e.what(), "size too large"))
{
// Allow exceptions from overlong size
printf("ProcessMessage(%s, %d bytes) : Exception '%s' caught\n", strCommand.c_str(), nMessageSize, e.what());
printf("ProcessMessage(%s, %u bytes) : Exception '%s' caught\n", strCommand.c_str(), nMessageSize, e.what());
}
else
{
@@ -1928,7 +2020,7 @@ bool ProcessMessages(CNode* pfrom)
}
if (!fRet)
printf("ProcessMessage(%s, %d bytes) FAILED\n", strCommand.c_str(), nMessageSize);
printf("ProcessMessage(%s, %u bytes) FAILED\n", strCommand.c_str(), nMessageSize);
}
vRecv.Compact();
@@ -1965,14 +2057,13 @@ bool ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
CAddress addrMe;
CAddress addrFrom;
uint64 nNonce = 1;
string strSubVer;
vRecv >> pfrom->nVersion >> pfrom->nServices >> nTime >> addrMe;
if (pfrom->nVersion == 10300)
pfrom->nVersion = 300;
if (pfrom->nVersion >= 106 && !vRecv.empty())
vRecv >> addrFrom >> nNonce;
if (pfrom->nVersion >= 106 && !vRecv.empty())
vRecv >> strSubVer;
vRecv >> pfrom->strSubVer;
if (pfrom->nVersion >= 209 && !vRecv.empty())
vRecv >> pfrom->nStartingHeight;
@@ -2010,6 +2101,11 @@ bool ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
pfrom->PushGetBlocks(pindexBest, uint256(0));
}
// Relay alerts
CRITICAL_BLOCK(cs_mapAlerts)
foreach(PAIRTYPE(const uint256, CAlert)& item, mapAlerts)
item.second.RelayTo(pfrom);
pfrom->fSuccessfullyConnected = true;
printf("version message: version %d, blocks=%d\n", pfrom->nVersion, pfrom->nStartingHeight);
@@ -2362,6 +2458,22 @@ bool ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
}
else if (strCommand == "alert")
{
CAlert alert;
vRecv >> alert;
if (alert.ProcessAlert())
{
// Relay
pfrom->setKnown.insert(alert.GetHash());
CRITICAL_BLOCK(cs_vNodes)
foreach(CNode* pnode, vNodes)
alert.RelayTo(pnode);
}
}
else
{
// Ignore unknown commands for extensibility
@@ -2695,7 +2807,7 @@ void BitcoinMiner()
map<uint256, CTxIndex> mapTestPool;
vector<char> vfAlreadyAdded(mapTransactions.size());
bool fFoundSomething = true;
unsigned int nBlockSize = 0;
uint64 nBlockSize = 0;
while (fFoundSomething && nBlockSize < MAX_SIZE/2)
{
fFoundSomething = false;