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check leaseset timestamp

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orignal 2016-02-16 22:57:38 -05:00
parent febc00d357
commit f2168774a5
3 changed files with 51 additions and 15 deletions
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30
LeaseSet.cpp
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@ -182,7 +182,35 @@ namespace data
m_IsValid = false;
}
}
uint64_t LeaseSet::ExtractTimestamp (const uint8_t * buf, size_t len) const
{
if (!m_Identity) return 0;
size_t size = m_Identity->GetFullLen ();
if (size > len) return 0;
size += 256; // encryption key
size += m_Identity->GetSigningPublicKeyLen (); // unused signing key
if (size > len) return 0;
uint8_t num = buf[size];
size++; // num
if (size + num*44 > len) return 0;
uint64_t timestamp= 0 ;
for (int i = 0; i < num; i++)
{
size += 36; // gateway (32) + tunnelId(4)
auto endDate = bufbe64toh (buf + size);
size += 8; // end date
if (!timestamp || endDate < timestamp)
timestamp = endDate;
}
return timestamp;
}
bool LeaseSet::IsNewer (const uint8_t * buf, size_t len) const
{
return true; //ExtractTimestamp (buf, len) > ExtractTimestamp (m_Buffer, m_BufferLen);
}
const std::vector<std::shared_ptr<const Lease> > LeaseSet::GetNonExpiredLeases (bool withThreshold) const
{
auto ts = i2p::util::GetMillisecondsSinceEpoch ();