1 files changed, 243 insertions, 0 deletions
diff --git a/modules/extra/m_ldap_authentication.cpp b/modules/extra/m_ldap_authentication.cpp
new file mode 100644
index 000000000..fa60247e5
--- /dev/null
+++ b/modules/extra/m_ldap_authentication.cpp
@@ -0,0 +1,243 @@
+#include "module.h"
+#include "ldap.h"
+
+static Anope::string email_attribute;
+
+struct IdentifyInfo
+{
+	dynamic_reference<User> user;
+	dynamic_reference<Command> command;
+	std::vector<Anope::string> params;
+	Anope::string account;
+	Anope::string pass;
+
+	IdentifyInfo(User *u, Command *c, const std::vector<Anope::string> &pa, const Anope::string &a, const Anope::string &p) : user(u), command(c), params(pa), account(a), pass(p) { }
+};
+
+
+class IdentifyInterface : public LDAPInterface
+{
+	std::map<LDAPQuery, IdentifyInfo *> requests;
+
+ public:
+	IdentifyInterface(Module *m) : LDAPInterface(m) { }
+
+	void Add(LDAPQuery id, IdentifyInfo *ii)
+	{
+		std::map<LDAPQuery, IdentifyInfo *>::iterator it = this->requests.find(id);
+		if (it != this->requests.end())
+			delete it->second;
+		this->requests[id] = ii;
+	}
+
+	void OnResult(const LDAPResult &r)
+	{
+		std::map<LDAPQuery, IdentifyInfo *>::iterator it = this->requests.find(r.id);
+		if (it == this->requests.end())
+			return;
+		IdentifyInfo *ii = it->second;
+		this->requests.erase(it);
+
+		if (!ii->user || !ii->command)
+		{
+			delete this;
+			return;
+		}
+
+		User *u = *ii->user;
+		Command *c = *ii->command;
+
+		u->Extend("m_ldap_authentication_authenticated");
+
+		NickAlias *na = findnick(ii->account);
+		if (na == NULL)
+		{
+			na = new NickAlias(ii->account, new NickCore(ii->account));
+			if (Config->NSAddAccessOnReg)
+				na->nc->AddAccess(create_mask(u));
+
+			u->SendMessage(NickServ, _("Your account \002%s\002 has been successfully created."), na->nick.c_str());
+		}
+		
+		enc_encrypt(ii->pass, na->nc->pass);
+
+		Anope::string params;
+		for (unsigned i = 0; i < ii->params.size(); ++i)
+			params += ii->params[i] + " ";
+		mod_run_cmd(c->service, u, NULL, c, c->name, params);
+
+		delete ii;
+	}
+
+	void OnError(const LDAPResult &r)
+	{
+		std::map<LDAPQuery, IdentifyInfo *>::iterator it = this->requests.find(r.id);
+		if (it == this->requests.end())
+			return;
+		IdentifyInfo *ii = it->second;
+		this->requests.erase(it);
+
+		if (!ii->user || !ii->command)
+		{
+			delete ii;
+			return;
+		}
+
+		User *u = *ii->user;
+		Command *c = *ii->command;
+
+		u->Extend("m_ldap_authentication_error");
+
+		Anope::string params;
+		for (unsigned i = 0; i < ii->params.size(); ++i)
+			params += ii->params[i] + " ";
+		mod_run_cmd(c->service, u, NULL, c, c->name, params);
+
+		delete ii;
+	}
+};
+
+class OnIdentifyInterface : public LDAPInterface
+{
+	std::map<LDAPQuery, Anope::string> requests;
+
+ public:
+	OnIdentifyInterface(Module *m) : LDAPInterface(m) { }
+
+	void Add(LDAPQuery id, const Anope::string &nick)
+	{
+		this->requests[id] = nick;
+	}
+
+	void OnResult(const LDAPResult &r)
+	{
+		std::map<LDAPQuery, Anope::string>::iterator it = this->requests.find(r.id);
+		if (it == this->requests.end())
+			return;
+		User *u = finduser(it->second);
+		this->requests.erase(it);
+
+		if (!u || !u->Account())
+			return;
+
+		try
+		{
+			const LDAPAttributes &attr = r.get(0);
+			Anope::string email = attr.get(email_attribute);
+
+			if (!email.equals_ci(u->Account()->email))
+			{
+				u->Account()->email = email;
+				u->SendMessage(NickServ, _("Your email has been updated to \002%s\002"), email.c_str());
+				Log() << "m_ldap_authentication: Updated email address for " << u->nick << " (" << u->Account()->display << ") to " << email;
+			}
+		}
+		catch (const LDAPException &ex)
+		{
+			Log() << "m_ldap_authentication: " << ex.GetReason();
+		}
+	}
+
+	void OnError(const LDAPResult &r)
+	{
+		this->requests.erase(r.id);
+		Log() << "m_ldap_authentication: " << r.error;
+	}
+};
+
+class NSIdentifyLDAP : public Module
+{
+	service_reference<LDAPProvider> ldap;
+	IdentifyInterface iinterface;
+	OnIdentifyInterface oninterface;
+
+	Anope::string binddn;
+	Anope::string username_attribute;
+	bool disable_register;
+	Anope::string disable_reason;
+ public:
+	NSIdentifyLDAP(const Anope::string &modname, const Anope::string &creator) :
+		Module(modname, creator), ldap("ldap/main"), iinterface(this), oninterface(this)
+	{
+		this->SetAuthor("Anope");
+		this->SetType(SUPPORTED);
+
+		Implementation i[] = { I_OnReload, I_OnPreCommand, I_OnCheckAuthentication, I_OnNickIdentify };
+		ModuleManager::Attach(i, this, 4);
+		ModuleManager::SetPriority(this, PRIORITY_FIRST);
+
+		OnReload(false);
+	}
+
+	void OnReload(bool)
+	{
+		ConfigReader config;
+
+		this->binddn = config.ReadValue("m_ldap_authentication", "binddn", "", 0);
+		this->username_attribute = config.ReadValue("m_ldap_authentication", "username_attribute", "", 0);
+		email_attribute = config.ReadValue("m_ldap_authentication", "email_attribute", "", 0);
+		this->disable_register = config.ReadFlag("m_ldap_authentication", "disable_ns_register", "false", 0);
+		this->disable_reason = config.ReadValue("m_ldap_authentication", "disable_reason", "", 0);
+	}
+
+	EventReturn OnPreCommand(CommandSource &source, Command *command, const std::vector<Anope::string> &params)
+	{
+		if (this->disable_register && command->service == NickServ && command->name == "REGISTER")
+		{
+			source.Reply(_(this->disable_reason.c_str()));
+			return EVENT_STOP;
+		}
+
+		return EVENT_CONTINUE;
+	}
+
+	EventReturn OnCheckAuthentication(User *u, Command *c, const std::vector<Anope::string> &params, const Anope::string &account, const Anope::string &password)
+	{
+		if (u == NULL || c == NULL || !this->ldap)
+			return EVENT_CONTINUE;
+		else if (u->GetExt("m_ldap_authentication_authenticated"))
+		{
+			u->Shrink("m_ldap_authentication_authenticated");
+			return EVENT_ALLOW;
+		}
+		else if (u->GetExt("m_ldap_authentication_error"))
+		{
+			u->Shrink("m_ldap_authentication_error");
+			return EVENT_CONTINUE;;
+		}
+
+		IdentifyInfo *ii = new IdentifyInfo(u, c, params, account, password);
+		try
+		{
+			Anope::string full_binddn = this->username_attribute + "=" + account + "," + this->binddn;
+			LDAPQuery id = this->ldap->Bind(&this->iinterface, full_binddn, password);
+			this->iinterface.Add(id, ii);
+		}
+		catch (const LDAPException &ex)
+		{
+			delete ii;
+			Log() << "ns_identify_ldap: " << ex.GetReason();
+			return EVENT_CONTINUE;
+		}
+
+		return EVENT_STOP;
+	}
+
+	void OnNickIdentify(User *u)
+	{
+		if (email_attribute.empty() || !this->ldap)
+			return;
+
+		try
+		{
+			LDAPQuery id = this->ldap->Search(&this->oninterface, this->binddn, "(" + this->username_attribute + "=" + u->Account()->display + ")");
+			this->oninterface.Add(id, u->nick);
+		}
+		catch (const LDAPException &ex)
+		{
+			Log() << "m_ldap_authentication: " << ex.GetReason();
+		}
+	}
+};
+
+MODULE_INIT(NSIdentifyLDAP)