/* Copyright (c) 2002-2018 Dovecot authors, see the included COPYING file */

#include "auth-common.h"
#include "mech.h"

static void
mech_anonymous_auth_continue(struct auth_request *request,
			     const unsigned char *data, size_t data_size)
{
	i_assert(*request->set->anonymous_username != '\0');

	if (request->set->verbose) {
		/* temporarily set the user to the one that was given,
		   so that the log message goes right */
		auth_request_set_username_forced(request,
			t_strndup(data, data_size));
		e_info(request->mech_event, "login");
	}

	auth_request_set_username_forced(request,
					 request->set->anonymous_username);

	request->passdb_success = TRUE;
	auth_request_success(request, "", 0);
}

static struct auth_request *mech_anonymous_auth_new(void)
{
        struct auth_request *request;
	pool_t pool;

	pool = pool_alloconly_create(MEMPOOL_GROWING"anonymous_auth_request", 2048);
	request = p_new(pool, struct auth_request, 1);
	request->pool = pool;
	return request;
}

const struct mech_module mech_anonymous = {
	"ANONYMOUS",

	.flags = MECH_SEC_ANONYMOUS | MECH_SEC_ALLOW_NULS,
	.passdb_need = MECH_PASSDB_NEED_NOTHING,

	mech_anonymous_auth_new,
	mech_generic_auth_initial,
	mech_anonymous_auth_continue,
	mech_generic_auth_free
};