#include <ldap.h>
#ifdef _WIN32
-# pragma comment(lib, "ldap.lib")
-# pragma comment(lib, "lber.lib")
+# pragma comment(lib, "libldap.lib")
+# pragma comment(lib, "liblber.lib")
#endif
/* $ModDesc: Allow/Deny connections based upon answer from LDAP server */
/* $LinkerFlags: -lldap */
-struct LDAPString
+struct RAIILDAPString
{
char *str;
- LDAPString(char *Str)
+ RAIILDAPString(char *Str)
: str(Str)
{
}
- ~LDAPString()
+ ~RAIILDAPString()
{
ldap_memfree(str);
}
}
};
+struct RAIILDAPMessage
+{
+ RAIILDAPMessage()
+ {
+ }
+
+ ~RAIILDAPMessage()
+ {
+ dealloc();
+ }
+
+ void dealloc()
+ {
+ ldap_msgfree(msg);
+ }
+
+ operator LDAPMessage*()
+ {
+ return msg;
+ }
+
+ LDAPMessage **operator &()
+ {
+ return &msg;
+ }
+
+ LDAPMessage *msg;
+};
+
class ModuleLDAPAuth : public Module
{
LocalIntExt ldapAuthed;
void init()
{
+ ServerInstance->Modules->AddService(ldapAuthed);
+ ServerInstance->Modules->AddService(ldapVhost);
Implementation eventlist[] = { I_OnCheckReady, I_OnRehash,I_OnUserRegister, I_OnUserConnect };
- ServerInstance->Modules->Attach(eventlist, this, 4);
+ ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
OnRehash(NULL);
}
}
}
- LDAPMessage *msg, *entry;
- std::string what = (attribute + "=" + (useusername ? user->ident : user->nick));
- if ((res = ldap_search_ext_s(conn, base.c_str(), searchscope, what.c_str(), NULL, 0, NULL, NULL, NULL, 0, &msg)) != LDAP_SUCCESS)
+ RAIILDAPMessage msg;
+ std::string what;
+ std::string::size_type pos = user->password.find(':');
+ // If a username is provided in PASS, use it, othewrise user their nick or ident
+ if (pos != std::string::npos)
{
- // Do a second search, based on password, if it contains a :
- // That is, PASS <user>:<password> will work.
- size_t pos = user->password.find(":");
- if (pos != std::string::npos)
- {
- std::string cutpassword = user->password.substr(0, pos);
- res = ldap_search_ext_s(conn, base.c_str(), searchscope, cutpassword.c_str(), NULL, 0, NULL, NULL, NULL, 0, &msg);
-
- if (res == LDAP_SUCCESS)
- {
- // Trim the user: prefix, leaving just 'pass' for later password check
- user->password = user->password.substr(pos + 1);
- }
- }
+ what = (attribute + "=" + user->password.substr(0, pos));
- // It may have found based on user:pass check above.
- if (res != LDAP_SUCCESS)
- {
- if (verbose)
- ServerInstance->SNO->WriteToSnoMask('c', "Forbidden connection from %s (LDAP search failed: %s)", user->GetFullRealHost().c_str(), ldap_err2string(res));
- return false;
- }
+ // Trim the user: prefix, leaving just 'pass' for later password check
+ user->password = user->password.substr(pos + 1);
+ }
+ else
+ {
+ what = (attribute + "=" + (useusername ? user->ident : user->nick));
+ }
+ if ((res = ldap_search_ext_s(conn, base.c_str(), searchscope, what.c_str(), NULL, 0, NULL, NULL, NULL, 0, &msg)) != LDAP_SUCCESS)
+ {
+ if (verbose)
+ ServerInstance->SNO->WriteToSnoMask('c', "Forbidden connection from %s (LDAP search failed: %s)", user->GetFullRealHost().c_str(), ldap_err2string(res));
+ return false;
}
if (ldap_count_entries(conn, msg) > 1)
{
if (verbose)
ServerInstance->SNO->WriteToSnoMask('c', "Forbidden connection from %s (LDAP search returned more than one result: %s)", user->GetFullRealHost().c_str(), ldap_err2string(res));
- ldap_msgfree(msg);
return false;
}
+
+ LDAPMessage *entry;
if ((entry = ldap_first_entry(conn, msg)) == NULL)
{
if (verbose)
ServerInstance->SNO->WriteToSnoMask('c', "Forbidden connection from %s (LDAP search returned no results: %s)", user->GetFullRealHost().c_str(), ldap_err2string(res));
- ldap_msgfree(msg);
return false;
}
cred.bv_val = (char*)user->password.data();
cred.bv_len = user->password.length();
- LDAPString DN(ldap_get_dn(conn, entry));
+ RAIILDAPString DN(ldap_get_dn(conn, entry));
if ((res = ldap_sasl_bind_s(conn, DN, LDAP_SASL_SIMPLE, &cred, NULL, NULL, NULL)) != LDAP_SUCCESS)
{
if (verbose)
ServerInstance->SNO->WriteToSnoMask('c', "Forbidden connection from %s (%s)", user->GetFullRealHost().c_str(), ldap_err2string(res));
- ldap_msgfree(msg);
return false;
}
{
if (verbose)
ServerInstance->SNO->WriteToSnoMask('c', "Forbidden connection from %s (Lacks required LDAP attributes)", user->GetFullRealHost().c_str());
- ldap_msgfree(msg);
return false;
}
}
std::string dnPart;
while (stream.GetToken(dnPart))
{
- std::string::size_type pos = dnPart.find('=');
+ pos = dnPart.find('=');
if (pos == std::string::npos) // malformed
continue;
ldapVhost.set(user, SafeReplace(vhost, dnParts));
}
- ldap_msgfree(msg);
ldapAuthed.set(user,1);
return true;
}