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dbms: fixed error with users [#CONV-8458].

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This commit is contained in:
Alexey Milovidov 2013-08-11 02:00:13 +00:00
parent 0698d868c5
commit 3e0046011a
2 changed files with 46 additions and 115 deletions
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46
dbms/include/DB/Interpreters/Users.h
View File

@ -107,11 +107,51 @@ public:
bool contains(const Poco::Net::IPAddress & addr) const bool contains(const Poco::Net::IPAddress & addr) const
{ {
Poco::Net::IPAddress addr_v6 = toIPv6(addr); Poco::Net::IPAddress addr_v6 = toIPv6(addr);
Poco::Net::HostEntry entry = Poco::Net::DNS::hostByName(host);
for (size_t i = 0, size = entry.addresses().size(); i < size; ++i) /// Резолвим вручную, потому что в Poco не используется флаг AI_ALL, а он важен.
if (toIPv6(entry.addresses()[i]) == addr_v6) addrinfo * ai = NULL;
addrinfo hints;
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_flags |= AI_V4MAPPED | AI_ALL;
int ret = getaddrinfo(host.c_str(), NULL, &hints, &ai);
if (0 != ret)
throw Exception("Cannot getaddrinfo: " + std::string(gai_strerror(ret)), ErrorCodes::DNS_ERROR);
try
{
for (; ai != NULL; ai = ai->ai_next)
{
if (ai->ai_addrlen && ai->ai_addr)
{
if (ai->ai_family == AF_INET6)
{
if (addr_v6 == Poco::Net::IPAddress(
&reinterpret_cast<sockaddr_in6*>(ai->ai_addr)->sin6_addr, sizeof(in6_addr),
reinterpret_cast<sockaddr_in6*>(ai->ai_addr)->sin6_scope_id))
{
return true; return true;
}
}
else if (ai->ai_family == AF_INET)
{
if (addr_v6 == toIPv6(Poco::Net::IPAddress(
&reinterpret_cast<sockaddr_in*>(ai->ai_addr)->sin_addr, sizeof(in_addr))))
{
return true;
}
}
}
}
}
catch (...)
{
freeaddrinfo(ai);
throw;
}
freeaddrinfo(ai);
return false; return false;
} }

111
dbms/src/Interpreters/tests/address_patterns.cpp
View File

@ -5,120 +5,11 @@
using namespace DB; using namespace DB;
namespace test
{
/// Проверяет соответствие адреса одному из адресов хоста.
class HostExactPattern : public IAddressPattern
{
private:
String host;
public:
HostExactPattern(const String & host_) : host(host_) {}
bool contains(const Poco::Net::IPAddress & addr) const
{
Poco::Net::IPAddress addr_v6 = toIPv6(addr);
addrinfo * ai = NULL;
addrinfo hints;
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_INET6;
hints.ai_flags |= AI_V4MAPPED | AI_ALL;
int ret = getaddrinfo(host.c_str(), NULL, NULL, &ai);
if (0 != ret)
throw Exception("Cannot getaddrinfo: " + std::string(gai_strerror(ret)), ErrorCodes::DNS_ERROR);
try
{
for (; ai != NULL; ai = ai->ai_next)
{
if (ai->ai_addrlen && ai->ai_addr)
{
if (ai->ai_family == AF_INET6)
{
char buf[1024];
std::cerr << inet_ntop(ai->ai_family, &reinterpret_cast<sockaddr_in6*>(ai->ai_addr)->sin6_addr, buf, sizeof(buf)) << std::endl;
std::cerr << Poco::Net::IPAddress(
&reinterpret_cast<sockaddr_in6*>(ai->ai_addr)->sin6_addr, sizeof(in6_addr),
reinterpret_cast<sockaddr_in6*>(ai->ai_addr)->sin6_scope_id).toString() << std::endl;
if (addr_v6 == Poco::Net::IPAddress(
&reinterpret_cast<sockaddr_in6*>(ai->ai_addr)->sin6_addr, sizeof(in6_addr),
reinterpret_cast<sockaddr_in6*>(ai->ai_addr)->sin6_scope_id))
{
return true;
}
}
else if (ai->ai_family == AF_INET)
{
char buf[1024];
std::cerr << inet_ntop(ai->ai_family, &reinterpret_cast<sockaddr_in*>(ai->ai_addr)->sin_addr, buf, sizeof(buf)) << std::endl;
std::cerr << Poco::Net::IPAddress(
&reinterpret_cast<sockaddr_in*>(ai->ai_addr)->sin_addr, sizeof(in_addr)).toString() << std::endl;
if (addr_v6 == toIPv6(Poco::Net::IPAddress(
&reinterpret_cast<sockaddr_in*>(ai->ai_addr)->sin_addr, sizeof(in_addr))))
{
return true;
}
}
}
}
}
catch (...)
{
freeaddrinfo(ai);
throw;
}
freeaddrinfo(ai);
return false;
}
};
/// Проверяет соответствие PTR-записи для адреса регекспу (и дополнительно проверяет, что PTR-запись резолвится обратно в адрес клиента).
class HostRegexpPattern : public IAddressPattern
{
private:
Poco::RegularExpression host_regexp;
public:
HostRegexpPattern(const String & host_regexp_) : host_regexp(host_regexp_) {}
bool contains(const Poco::Net::IPAddress & addr) const
{
Poco::Net::SocketAddress sock_addr(addr, 0);
/// Резолвим вручную, потому что в Poco нет такой функциональности.
char domain[1024];
int ret = getnameinfo(sock_addr.addr(), sock_addr.length(), domain, sizeof(domain), NULL, 0, NI_NAMEREQD);
if (0 != ret)
throw Exception("Cannot getnameinfo: " + std::string(gai_strerror(ret)), ErrorCodes::DNS_ERROR);
String domain_str = domain;
Poco::RegularExpression::Match match;
std::cerr << domain_str << ", " << host_regexp.match(domain_str, match) << std::endl;
if (host_regexp.match(domain_str, match) && HostExactPattern(domain_str).contains(addr))
return true;
return false;
}
};
};
int main(int argc, char ** argv) int main(int argc, char ** argv)
{ {
try try
{ {
std::cerr << test::HostRegexpPattern(argv[1]).contains(Poco::Net::IPAddress(argv[2])) << std::endl; std::cerr << HostRegexpPattern(argv[1]).contains(Poco::Net::IPAddress(argv[2])) << std::endl;
} }
catch (const Exception & e) catch (const Exception & e)
{ {