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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_acmev1_drive.h"
/**************************************************************************************************/
/* authz/challenge setup */
/**
* Pre-Req: we have an account for the ACME server that has accepted the current license agreement
* For each domain in MD:
* - check if there already is a valid AUTHZ resource
* - if ot, create an AUTHZ resource with challenge data
*/
static apr_status_t ad_setup_order(md_proto_driver_t *d, md_result_t *result)
{
md_acme_driver_t *ad = d->baton;
apr_status_t rv;
md_t *md = ad->md;
const char *url;
md_acme_authz_t *authz;
apr_array_header_t *domains_covered;
int i;
int changed = 0;
assert(ad->md);
assert(ad->acme);
md_result_activity_printf(result, "Setup order resource for %s", ad->md->name);
/* 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
*/
rv = md_acme_order_load(d->store, MD_SG_STAGING, md->name, &ad->order, d->p);
if (!ad->order || APR_STATUS_IS_ENOENT(rv)) {
ad->order = md_acme_order_create(d->p);
rv = APR_SUCCESS;
}
else if (APR_SUCCESS != rv) {
md_log_perror(MD_LOG_MARK, MD_LOG_DEBUG, rv, d->p, "%s: loading authz data", md->name);
md_acme_order_purge(d->store, d->p, MD_SG_STAGING, md->name, d->env);
return APR_EAGAIN;
}
/* Retrieve all known authz from ACME server and check status etc. */
domains_covered = apr_array_make(d->p, 5, sizeof(const char *));
for (i = 0; i < ad->order->authz_urls->nelts;) {
url = APR_ARRAY_IDX(ad->order->authz_urls, i, const char*);
rv = md_acme_authz_retrieve(ad->acme, d->p, url, &authz);
if (APR_SUCCESS == rv) {
if (md_array_str_index(ad->domains, authz->domain, 0, 0) < 0) {
md_acme_order_remove(ad->order, url);
changed = 1;
continue;
}
APR_ARRAY_PUSH(domains_covered, const char *) = authz->domain;
++i;
}
else if (APR_STATUS_IS_ENOENT(rv)) {
md_acme_order_remove(ad->order, url);
changed = 1;
continue;
}
else {
goto leave;
}
}
/* Do we have authz urls for all domains? If not, register a new one */
for (i = 0; i < ad->domains->nelts && APR_SUCCESS == rv; ++i) {
const char *domain = APR_ARRAY_IDX(ad->domains, i, const char *);
if (md_array_str_index(domains_covered, domain, 0, 0) < 0) {
md_result_activity_printf(result, "Creating authz resource for %s", domain);
rv = md_acme_authz_register(&authz, ad->acme, domain, d->p);
md_log_perror(MD_LOG_MARK, MD_LOG_DEBUG, rv, d->p, "%s: created authz for %s (last problem: %s)",
md->name, domain, ad->acme->last->problem);
if (APR_SUCCESS != rv) goto leave;
rv = md_acme_order_add(ad->order, authz->url);
changed = 1;
}
}
if (changed) {
rv = md_acme_order_save(d->store, d->p, MD_SG_STAGING, md->name, ad->order, 0);
md_log_perror(MD_LOG_MARK, MD_LOG_TRACE1, rv, d->p, "%s: saved", md->name);
}
leave:
md_acme_report_result(ad->acme, rv, result);
return rv;
}
apr_status_t md_acmev1_drive_renew(md_acme_driver_t *ad, md_proto_driver_t *d, md_result_t *result)
{
apr_status_t rv = APR_SUCCESS;
const char *required;
md_log_perror(MD_LOG_MARK, MD_LOG_DEBUG, 0, d->p, "%s: (ACMEv1) need certificate", d->md->name);
/* Chose (or create) and ACME account to use */
if (APR_SUCCESS != (rv = md_acme_drive_set_acct(d, result))) goto leave;
/* Check that the account agreed to the terms-of-service, otherwise
* requests for new authorizations are denied. ToS may change during the
* lifetime of an account */
md_log_perror(MD_LOG_MARK, MD_LOG_DEBUG, 0, d->p,
"%s: (ACMEv1) check Tems-of-Service agreement", d->md->name);
rv = md_acme_check_agreement(ad->acme, d->p, ad->md->ca_agreement, &required);
if (APR_STATUS_IS_INCOMPLETE(rv) && required) {
/* The CA wants the user to agree to Terms-of-Services. Until the user
* has reconfigured and restarted the server, this MD cannot be
* driven further */
ad->md->state = MD_S_MISSING_INFORMATION;
md_save(d->store, d->p, MD_SG_STAGING, ad->md, 0);
md_result_printf(result, rv,
"the CA requires you to accept the terms-of-service as specified in <%s>. "
"Please read the document that you find at that URL and, if you agree to "
"the conditions, configure \"MDCertificateAgreement accepted\" "
"in your Apache. Then (graceful) restart the server to activate.",
required);
goto leave;
}
else if (APR_SUCCESS != rv) goto leave;
if (!md_array_is_empty(ad->certs)) goto leave;
rv = ad_setup_order(d, result);
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 (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_drive_setup_certificate(d, result);
leave:
md_result_log(result, MD_LOG_DEBUG);
return result->status;
}
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