+ virtual void OnUserConnect(User* dest)
+ {
+ std::string* tofree;
+ if (dest->GetExt("cloaked_host", tofree))
+ return;
+
+ if (dest->host.find('.') != std::string::npos || dest->host.find(':') != std::string::npos)
+ {
+ unsigned int iv[] = { cu->key1, cu->key2, cu->key3, cu->key4 };
+ std::string a = cu->LastTwoDomainParts(dest->host);
+ std::string b;
+
+ /* InspIRCd users have two hostnames; A displayed
+ * hostname which can be modified by modules (e.g.
+ * to create vhosts, implement chghost, etc) and a
+ * 'real' hostname which you shouldnt write to.
+ */
+
+ /* 2008/08/18: add <cloak:ipalways> which always cloaks
+ * the IP, for anonymity. --nenolod
+ */
+ if (!cu->ipalways)
+ {
+ /** Reset the Hash module, and send it our IV and hex table */
+ HashResetRequest(this, cu->HashProvider).Send();
+ HashKeyRequest(this, cu->HashProvider, iv).Send();
+ HashHexRequest(this, cu->HashProvider, cu->xtab[(dest->host[0]) % 4]);
+
+ /* Generate a cloak using specialized Hash */
+ std::string hostcloak = cu->prefix + "-" + std::string(HashSumRequest(this, cu->HashProvider, dest->host.c_str()).Send()).substr(0,8) + a;
+
+ /* Fix by brain - if the cloaked host is > the max length of a host (64 bytes
+ * according to the DNS RFC) then tough titty, they get cloaked as an IP.
+ * Their ISP shouldnt go to town on subdomains, or they shouldnt have a kiddie
+ * vhost.
+ */
+#ifdef IPV6
+ in6_addr testaddr;
+ in_addr testaddr2;
+ if ((dest->GetProtocolFamily() == AF_INET6) && (inet_pton(AF_INET6,dest->host.c_str(),&testaddr) < 1) && (hostcloak.length() <= 64))
+ /* Invalid ipv6 address, and ipv6 user (resolved host) */
+ b = hostcloak;
+ else if ((dest->GetProtocolFamily() == AF_INET) && (inet_aton(dest->host.c_str(),&testaddr2) < 1) && (hostcloak.length() <= 64))
+ /* Invalid ipv4 address, and ipv4 user (resolved host) */
+ b = hostcloak;
+ else
+ /* Valid ipv6 or ipv4 address (not resolved) ipv4 or ipv6 user */
+ b = ((!strchr(dest->host.c_str(),':')) ? cu->Cloak4(dest->host.c_str()) : cu->Cloak6(dest->host.c_str()));
+#else
+ in_addr testaddr;
+ if ((inet_aton(dest->host.c_str(),&testaddr) < 1) && (hostcloak.length() <= 64))
+ /* Invalid ipv4 address, and ipv4 user (resolved host) */
+ b = hostcloak;
+ else
+ /* Valid ipv4 address (not resolved) ipv4 user */
+ b = cu->Cloak4(dest->host.c_str());
+#endif
+ }
+ else
+ {
+#ifdef IPV6
+ if (dest->GetProtocolFamily() == AF_INET6)
+ b = cu->Cloak6(dest->GetIPString());
+#endif
+ if (dest->GetProtocolFamily() == AF_INET)
+ b = cu->Cloak4(dest->GetIPString());
+ }
+
+ dest->Extend("cloaked_host", new std::string(b));
+ }
+ }
+