* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
- * InspIRCd: (C) 2002-2008 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ * InspIRCd: (C) 2002-2009 InspIRCd Development Team
+ * See: http://wiki.inspircd.org/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
* Taken from the UnrealIRCd 4.0 SVN version, based on
* InspIRCd 1.1.x.
*
- * UnrealIRCd 4.0 (C) 2007 Carsten Valdemar Munk
+ * UnrealIRCd 4.0 (C) 2007 Carsten Valdemar Munk
* This program is free but copyrighted software; see
* the file COPYING for details.
*
#include "channels.h"
#include "modules.h"
-/* FIXME */
-//#define LDAP_DEPRECATED 1
#include <ldap.h>
/* $ModDesc: Allow/Deny connections based upon answer from LDAP server */
class ModuleLDAPAuth : public Module
{
+ LocalIntExt ldapAuthed;
std::string base;
std::string attribute;
std::string ldapserver;
std::string allowpattern;
std::string killreason;
+ std::string username;
+ std::string password;
int searchscope;
bool verbose;
+ bool useusername;
LDAP *conn;
-
+
public:
- ModuleLDAPAuth(InspIRCd* Me)
- : Module::Module(Me)
+ ModuleLDAPAuth() : ldapAuthed("ldapauth", this)
{
conn = NULL;
- Implementation eventlist[] = { I_OnUserDisconnect, I_OnCheckReady, I_OnRehash, I_OnUserRegister };
+ Implementation eventlist[] = { I_OnCheckReady, I_OnRehash, I_OnUserRegister };
ServerInstance->Modules->Attach(eventlist, this, 4);
- OnRehash(NULL,"");
+ OnRehash(NULL);
}
- virtual ~ModuleLDAPAuth()
+ ~ModuleLDAPAuth()
{
if (conn)
ldap_unbind_ext(conn, NULL, NULL);
}
- virtual void OnRehash(User* user, const std::string ¶meter)
+ void OnRehash(User* user)
{
- ConfigReader Conf(ServerInstance);
-
- base = Conf.ReadValue("ldapauth", "baserdn", 0);
- attribute = Conf.ReadValue("ldapauth", "attribute", 0);
- ldapserver = Conf.ReadValue("ldapauth", "server", 0);
- allowpattern = Conf.ReadValue("ldapauth", "allowpattern", 0);
- killreason = Conf.ReadValue("ldapauth", "killreason", 0);
+ ConfigReader Conf;
+
+ base = Conf.ReadValue("ldapauth", "baserdn", 0);
+ attribute = Conf.ReadValue("ldapauth", "attribute", 0);
+ ldapserver = Conf.ReadValue("ldapauth", "server", 0);
+ allowpattern = Conf.ReadValue("ldapauth", "allowpattern", 0);
+ killreason = Conf.ReadValue("ldapauth", "killreason", 0);
std::string scope = Conf.ReadValue("ldapauth", "searchscope", 0);
- verbose = Conf.ReadFlag("ldapauth", "verbose", 0); /* Set to true if failed connects should be reported to operators */
-
+ username = Conf.ReadValue("ldapauth", "binddn", 0);
+ password = Conf.ReadValue("ldapauth", "bindauth", 0);
+ verbose = Conf.ReadFlag("ldapauth", "verbose", 0); /* Set to true if failed connects should be reported to operators */
+ useusername = Conf.ReadFlag("ldapauth", "userfield", 0);
+
if (scope == "base")
searchscope = LDAP_SCOPE_BASE;
else if (scope == "onelevel")
searchscope = LDAP_SCOPE_ONELEVEL;
else searchscope = LDAP_SCOPE_SUBTREE;
-
+
Connect();
}
if (res != LDAP_SUCCESS)
{
if (verbose)
- ServerInstance->SNO->WriteToSnoMask('A', "LDAP connection failed: %s", ldap_err2string(res));
+ ServerInstance->SNO->WriteToSnoMask('c', "LDAP connection failed: %s", ldap_err2string(res));
conn = NULL;
- return false;
+ return false;
}
-
+
res = ldap_set_option(conn, LDAP_OPT_PROTOCOL_VERSION, (void *)&v);
if (res != LDAP_SUCCESS)
{
if (verbose)
- ServerInstance->SNO->WriteToSnoMask('A', "LDAP set protocol to v3 failed: %s", ldap_err2string(res));
+ ServerInstance->SNO->WriteToSnoMask('c', "LDAP set protocol to v3 failed: %s", ldap_err2string(res));
ldap_unbind_ext(conn, NULL, NULL);
conn = NULL;
return false;
return true;
}
- virtual int OnUserRegister(User* user)
+ ModResult OnUserRegister(LocalUser* user)
{
- if ((!allowpattern.empty()) && (ServerInstance->MatchText(user->nick,allowpattern)))
+ if ((!allowpattern.empty()) && (InspIRCd::Match(user->nick,allowpattern)))
{
- user->Extend("ldapauthed");
- return 0;
+ ldapAuthed.set(user,1);
+ return MOD_RES_PASSTHRU;
}
if (!CheckCredentials(user))
{
- User::QuitUser(ServerInstance,user,killreason);
- return 1;
+ ServerInstance->Users->QuitUser(user, killreason);
+ return MOD_RES_DENY;
}
- return 0;
+ return MOD_RES_PASSTHRU;
}
- bool CheckCredentials(User* user)
+ bool CheckCredentials(LocalUser* user)
{
if (conn == NULL)
if (!Connect())
return false;
int res;
- // bind anonymously
- //if ((res = ldap_simple_bind_s(conn, "", "")) != LDAP_SUCCESS)
- struct berval cred; cred.bv_val = ""; cred.bv_len = 0;
- if ((res = ldap_sasl_bind_s(conn, "", LDAP_SASL_SIMPLE, &cred, NULL, NULL, NULL)) != LDAP_SUCCESS)
- {
- if (verbose)
- ServerInstance->SNO->WriteToSnoMask('A', "Forbidden connection from %s!%s@%s (LDAP bind anonymously failed: %s)", user->nick, user->ident, user->host, ldap_err2string(res));
- ldap_unbind_ext(conn, NULL, NULL);
- conn = NULL;
- return false;
+ // bind anonymously if no bind DN and authentication are given in the config
+ struct berval cred;
+ cred.bv_val = const_cast<char*>(password.c_str());
+ cred.bv_len = password.length();
+
+ if ((res = ldap_sasl_bind_s(conn, username.c_str(), LDAP_SASL_SIMPLE, &cred, NULL, NULL, NULL)) != LDAP_SUCCESS)
+ {
+ if (res == LDAP_SERVER_DOWN)
+ {
+ // Attempt to reconnect if the connection dropped
+ if (verbose)
+ ServerInstance->SNO->WriteToSnoMask('a', "LDAP server has gone away - reconnecting...");
+ Connect();
+ res = ldap_sasl_bind_s(conn, username.c_str(), LDAP_SASL_SIMPLE, &cred, NULL, NULL, NULL);
+ }
+
+ if (res != LDAP_SUCCESS)
+ {
+ if (verbose)
+ ServerInstance->SNO->WriteToSnoMask('c', "Forbidden connection from %s!%s@%s (LDAP bind failed: %s)", user->nick.c_str(), user->ident.c_str(), user->host.c_str(), ldap_err2string(res));
+ ldap_unbind_ext(conn, NULL, NULL);
+ conn = NULL;
+ return false;
+ }
}
+
LDAPMessage *msg, *entry;
- std::string what = (attribute + "=" + user->nick);
- //if ((res = ldap_search_s(conn, base.c_str(), searchscope, what.c_str(), NULL, 0, &msg)) != LDAP_SUCCESS)
- if ((res = ldap_search_ext_s(conn, base.c_str(), searchscope, what.c_str(), NULL, 0, NULL, NULL, NULL, NULL, &msg)) != LDAP_SUCCESS)
+ 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)
{
if (verbose)
- ServerInstance->SNO->WriteToSnoMask('A', "Forbidden connection from %s!%s@%s (LDAP search failed: %s)", user->nick, user->ident, user->host, ldap_err2string(res));
+ ServerInstance->SNO->WriteToSnoMask('c', "Forbidden connection from %s!%s@%s (LDAP search failed: %s)", user->nick.c_str(), user->ident.c_str(), user->host.c_str(), ldap_err2string(res));
return false;
}
if (ldap_count_entries(conn, msg) > 1)
{
if (verbose)
- ServerInstance->SNO->WriteToSnoMask('A', "Forbidden connection from %s!%s@%s (LDAP search returned more than one result: %s)", user->nick, user->ident, user->host, ldap_err2string(res));
+ ServerInstance->SNO->WriteToSnoMask('c', "Forbidden connection from %s!%s@%s (LDAP search returned more than one result: %s)", user->nick.c_str(), user->ident.c_str(), user->host.c_str(), ldap_err2string(res));
ldap_msgfree(msg);
return false;
}
if ((entry = ldap_first_entry(conn, msg)) == NULL)
{
if (verbose)
- ServerInstance->SNO->WriteToSnoMask('A', "Forbidden connection from %s!%s@%s (LDAP search returned no results: %s)", user->nick, user->ident, user->host, ldap_err2string(res));
+ ServerInstance->SNO->WriteToSnoMask('c', "Forbidden connection from %s!%s@%s (LDAP search returned no results: %s)", user->nick.c_str(), user->ident.c_str(), user->host.c_str(), ldap_err2string(res));
ldap_msgfree(msg);
return false;
}
- //if ((res = ldap_simple_bind_s(conn, ldap_get_dn(conn, entry), user->password)) == LDAP_SUCCESS)
- cred.bv_val = user->password; cred.bv_len = strlen(user->password);
+ if (user->password.empty())
+ {
+ if (verbose)
+ ServerInstance->SNO->WriteToSnoMask('c', "Forbidden connection from %s!%s@%s (No password provided)", user->nick.c_str(), user->ident.c_str(), user->host.c_str());
+ return false;
+ }
+ cred.bv_val = (char*)user->password.data();
+ cred.bv_len = user->password.length();
if ((res = ldap_sasl_bind_s(conn, ldap_get_dn(conn, entry), LDAP_SASL_SIMPLE, &cred, NULL, NULL, NULL)) == LDAP_SUCCESS)
{
ldap_msgfree(msg);
- user->Extend("ldapauthed");
+ ldapAuthed.set(user,1);
return true;
}
else
{
if (verbose)
- ServerInstance->SNO->WriteToSnoMask('A', "Forbidden connection from %s!%s@%s (%s)", user->nick, user->ident, user->host, ldap_err2string(res));
+ ServerInstance->SNO->WriteToSnoMask('c', "Forbidden connection from %s!%s@%s (%s)", user->nick.c_str(), user->ident.c_str(), user->host.c_str(), ldap_err2string(res));
ldap_msgfree(msg);
- user->Extend("ldapauth_failed");
return false;
- }
- }
-
-
- virtual void OnUserDisconnect(User* user)
- {
- user->Shrink("ldapauthed");
- user->Shrink("ldapauth_failed");
+ }
}
-
- virtual bool OnCheckReady(User* user)
+
+ ModResult OnCheckReady(LocalUser* user)
{
- return user->GetExt("ldapauthed");
+ return ldapAuthed.get(user) ? MOD_RES_PASSTHRU : MOD_RES_DENY;
}
- virtual Version GetVersion()
+ Version GetVersion()
{
- return Version(1,2,0,0,VF_VENDOR,API_VERSION);
+ return Version("Allow/Deny connections based upon answer from LDAP server", VF_VENDOR);
}
-
+
};
MODULE_INIT(ModuleLDAPAuth)
projects / user / henk / code / inspircd.git / blobdiff