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/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <assert.h>
#include <stdlib.h>
#include <apr_lib.h>
#include <apr_strings.h>
#include <apr_buckets.h>
#include <apr_hash.h>
#include <apr_uri.h>
#include "md.h"
#include "md_crypt.h"
#include "md_json.h"
#include "md_jws.h"
#include "md_http.h"
#include "md_log.h"
#include "md_result.h"
#include "md_reg.h"
#include "md_store.h"
#include "md_util.h"
#include "md_acme.h"
#include "md_acme_acct.h"
#include "md_acme_authz.h"
#include "md_acme_order.h"
#include "md_acme_drive.h"
#include "md_acmev2_drive.h"
/**************************************************************************************************/
/* order setup */
/**
* Either we have an order stored in the STAGING area, or we need to create a
* new one at the ACME server.
*/
static apr_status_t ad_setup_order(md_proto_driver_t *d, md_result_t *result, int *pis_new)
{
md_acme_driver_t *ad = d->baton;
apr_status_t rv;
md_t *md = ad->md;
assert(ad->md);
assert(ad->acme);
/* For each domain in MD: AUTHZ setup
* if an AUTHZ resource is known, check if it is still valid
* if known AUTHZ resource is not valid, remove, goto 4.1.1
* if no AUTHZ available, create a new one for the domain, store it
*/
if (pis_new) *pis_new = 0;
rv = md_acme_order_load(d->store, MD_SG_STAGING, md->name, &ad->order, d->p);
if (APR_SUCCESS == rv) {
md_result_activity_setn(result, "Loaded order from staging");
goto leave;
}
else if (!APR_STATUS_IS_ENOENT(rv)) {
md_log_perror(MD_LOG_MARK, MD_LOG_DEBUG, rv, d->p, "%s: loading order", md->name);
md_acme_order_purge(d->store, d->p, MD_SG_STAGING, md, d->env);
}
md_result_activity_setn(result, "Creating new order");
rv = md_acme_order_register(&ad->order, ad->acme, d->p, d->md->name, ad->domains);
if (APR_SUCCESS !=rv) goto leave;
rv = md_acme_order_save(d->store, d->p, MD_SG_STAGING, d->md->name, ad->order, 0);
if (APR_SUCCESS != rv) {
md_result_set(result, rv, "saving order in staging");
}
if (pis_new) *pis_new = 1;
leave:
md_acme_report_result(ad->acme, rv, result);
return rv;
}
/**************************************************************************************************/
/* ACMEv2 renewal */
apr_status_t md_acmev2_drive_renew(md_acme_driver_t *ad, md_proto_driver_t *d, md_result_t *result)
{
apr_status_t rv = APR_SUCCESS;
int is_new_order = 0;
md_log_perror(MD_LOG_MARK, MD_LOG_DEBUG, 0, d->p, "%s: (ACMEv2) need certificate", d->md->name);
/* Chose (or create) and ACME account to use */
rv = md_acme_drive_set_acct(d, result);
if (APR_SUCCESS != rv) goto leave;
if (!md_array_is_empty(ad->cred->chain)) goto leave;
/* ACMEv2 strategy:
* 1. load an md_acme_order_t from STAGING, if present
* 2. if no order found, register a new order at ACME server
* 3. update the order from the server
* 4. Switch order state:
* * PENDING: process authz challenges
* * READY: finalize the order
* * PROCESSING: wait and re-assses later
* * VALID: retrieve certificate
* * COMPLETE: all done, return success
* * INVALID and otherwise: fail renewal, delete local order
*/
if (APR_SUCCESS != (rv = ad_setup_order(d, result, &is_new_order))) {
goto leave;
}
rv = md_acme_order_update(ad->order, ad->acme, result, d->p);
if (APR_STATUS_IS_ENOENT(rv)
|| APR_STATUS_IS_EACCES(rv)
|| MD_ACME_ORDER_ST_INVALID == ad->order->status) {
/* order is invalid or no longer known at the ACME server */
ad->order = NULL;
md_acme_order_purge(d->store, d->p, MD_SG_STAGING, d->md, d->env);
}
else if (APR_SUCCESS != rv) {
goto leave;
}
retry:
if (!ad->order) {
rv = ad_setup_order(d, result, &is_new_order);
if (APR_SUCCESS != rv) goto leave;
}
rv = md_acme_order_start_challenges(ad->order, ad->acme, ad->ca_challenges,
d->store, d->md, d->env, result, d->p);
if (!is_new_order && APR_STATUS_IS_EINVAL(rv)) {
/* found 'invalid' domains in previous order, need to start over */
ad->order = NULL;
md_acme_order_purge(d->store, d->p, MD_SG_STAGING, d->md, d->env);
goto retry;
}
if (APR_SUCCESS != rv) goto leave;
rv = md_acme_order_monitor_authzs(ad->order, ad->acme, d->md,
ad->authz_monitor_timeout, result, d->p);
if (APR_SUCCESS != rv) goto leave;
rv = md_acme_order_await_ready(ad->order, ad->acme, d->md,
ad->authz_monitor_timeout, result, d->p);
if (APR_SUCCESS != rv) goto leave;
if (MD_ACME_ORDER_ST_READY == ad->order->status) {
rv = md_acme_drive_setup_cred_chain(d, result);
if (APR_SUCCESS != rv) goto leave;
md_log_perror(MD_LOG_MARK, MD_LOG_DEBUG, 0, d->p, "%s: finalized order", d->md->name);
}
rv = md_acme_order_await_valid(ad->order, ad->acme, d->md,
ad->authz_monitor_timeout, result, d->p);
if (APR_SUCCESS != rv) goto leave;
if (!ad->order->certificate) {
md_result_set(result, APR_EINVAL, "Order valid, but certificate url is missing.");
goto leave;
}
md_result_set(result, APR_SUCCESS, NULL);
leave:
md_result_log(result, MD_LOG_DEBUG);
return result->status;
}
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