diff options
Diffstat (limited to 'modules/md/md_acme_authz.c')
| -rw-r--r-- | modules/md/md_acme_authz.c | 697 |
1 files changed, 697 insertions, 0 deletions
diff --git a/modules/md/md_acme_authz.c b/modules/md/md_acme_authz.c new file mode 100644 index 0000000..a55804e --- /dev/null +++ b/modules/md/md_acme_authz.c @@ -0,0 +1,697 @@ +/* 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 <stdio.h> + +#include <apr_lib.h> +#include <apr_buckets.h> +#include <apr_file_info.h> +#include <apr_file_io.h> +#include <apr_fnmatch.h> +#include <apr_hash.h> +#include <apr_strings.h> +#include <apr_tables.h> + +#include "md.h" +#include "md_crypt.h" +#include "md_json.h" +#include "md_http.h" +#include "md_log.h" +#include "md_jws.h" +#include "md_result.h" +#include "md_store.h" +#include "md_util.h" + +#include "md_acme.h" +#include "md_acme_authz.h" + +md_acme_authz_t *md_acme_authz_create(apr_pool_t *p) +{ + md_acme_authz_t *authz; + authz = apr_pcalloc(p, sizeof(*authz)); + + return authz; +} + +/**************************************************************************************************/ +/* Register a new authorization */ + +typedef struct { + size_t index; + const char *type; + const char *uri; + const char *token; + const char *key_authz; +} md_acme_authz_cha_t; + +typedef struct { + apr_pool_t *p; + md_acme_t *acme; + const char *domain; + md_acme_authz_t *authz; + md_acme_authz_cha_t *challenge; +} authz_req_ctx; + +static void authz_req_ctx_init(authz_req_ctx *ctx, md_acme_t *acme, + const char *domain, md_acme_authz_t *authz, apr_pool_t *p) +{ + memset(ctx, 0, sizeof(*ctx)); + ctx->p = p; + ctx->acme = acme; + ctx->domain = domain; + ctx->authz = authz; +} + +/**************************************************************************************************/ +/* Update an existing authorization */ + +apr_status_t md_acme_authz_retrieve(md_acme_t *acme, apr_pool_t *p, const char *url, + md_acme_authz_t **pauthz) +{ + md_acme_authz_t *authz; + apr_status_t rv; + + authz = apr_pcalloc(p, sizeof(*authz)); + authz->url = apr_pstrdup(p, url); + rv = md_acme_authz_update(authz, acme, p); + + *pauthz = (APR_SUCCESS == rv)? authz : NULL; + return rv; +} + +typedef struct { + apr_pool_t *p; + md_acme_authz_t *authz; +} error_ctx_t; + +static int copy_challenge_error(void *baton, size_t index, md_json_t *json) +{ + error_ctx_t *ctx = baton; + + (void)index; + if (md_json_has_key(json, MD_KEY_ERROR, NULL)) { + ctx->authz->error_type = md_json_dups(ctx->p, json, MD_KEY_ERROR, MD_KEY_TYPE, NULL); + ctx->authz->error_detail = md_json_dups(ctx->p, json, MD_KEY_ERROR, MD_KEY_DETAIL, NULL); + ctx->authz->error_subproblems = md_json_dupj(ctx->p, json, MD_KEY_ERROR, MD_KEY_SUBPROBLEMS, NULL); + } + return 1; +} + +apr_status_t md_acme_authz_update(md_acme_authz_t *authz, md_acme_t *acme, apr_pool_t *p) +{ + md_json_t *json; + const char *s, *err; + md_log_level_t log_level; + apr_status_t rv; + error_ctx_t ctx; + + assert(acme); + assert(acme->http); + assert(authz); + assert(authz->url); + + authz->state = MD_ACME_AUTHZ_S_UNKNOWN; + json = NULL; + authz->error_type = authz->error_detail = NULL; + authz->error_subproblems = NULL; + err = "unable to parse response"; + log_level = MD_LOG_ERR; + + if (APR_SUCCESS == (rv = md_acme_get_json(&json, acme, authz->url, p)) + && (s = md_json_gets(json, MD_KEY_STATUS, NULL))) { + + authz->domain = md_json_gets(json, MD_KEY_IDENTIFIER, MD_KEY_VALUE, NULL); + authz->resource = json; + if (!strcmp(s, "pending")) { + authz->state = MD_ACME_AUTHZ_S_PENDING; + err = "challenge 'pending'"; + log_level = MD_LOG_DEBUG; + } + else if (!strcmp(s, "valid")) { + authz->state = MD_ACME_AUTHZ_S_VALID; + err = "challenge 'valid'"; + log_level = MD_LOG_DEBUG; + } + else if (!strcmp(s, "invalid")) { + ctx.p = p; + ctx.authz = authz; + authz->state = MD_ACME_AUTHZ_S_INVALID; + md_json_itera(copy_challenge_error, &ctx, json, MD_KEY_CHALLENGES, NULL); + err = "challenge 'invalid'"; + } + } + + if (json && authz->state == MD_ACME_AUTHZ_S_UNKNOWN) { + err = "unable to understand response"; + rv = APR_EINVAL; + } + + if (md_log_is_level(p, log_level)) { + md_log_perror(MD_LOG_MARK, log_level, rv, p, "ACME server authz: %s for %s at %s. " + "Exact response was: %s", err, authz->domain, authz->url, + json? md_json_writep(json, p, MD_JSON_FMT_COMPACT) : "not available"); + } + + return rv; +} + +/**************************************************************************************************/ +/* response to a challenge */ + +static md_acme_authz_cha_t *cha_from_json(apr_pool_t *p, size_t index, md_json_t *json) +{ + md_acme_authz_cha_t * cha; + + cha = apr_pcalloc(p, sizeof(*cha)); + cha->index = index; + cha->type = md_json_dups(p, json, MD_KEY_TYPE, NULL); + if (md_json_has_key(json, MD_KEY_URL, NULL)) { /* ACMEv2 */ + cha->uri = md_json_dups(p, json, MD_KEY_URL, NULL); + } + else { /* ACMEv1 */ + cha->uri = md_json_dups(p, json, MD_KEY_URI, NULL); + } + cha->token = md_json_dups(p, json, MD_KEY_TOKEN, NULL); + cha->key_authz = md_json_dups(p, json, MD_KEY_KEYAUTHZ, NULL); + + return cha; +} + +static apr_status_t on_init_authz_resp(md_acme_req_t *req, void *baton) +{ + md_json_t *jpayload; + + (void)baton; + jpayload = md_json_create(req->p); + return md_acme_req_body_init(req, jpayload); +} + +static apr_status_t authz_http_set(md_acme_t *acme, apr_pool_t *p, const apr_table_t *hdrs, + md_json_t *body, void *baton) +{ + authz_req_ctx *ctx = baton; + + (void)acme; + (void)p; + (void)hdrs; + (void)body; + md_log_perror(MD_LOG_MARK, MD_LOG_TRACE1, 0, ctx->p, "updated authz %s", ctx->authz->url); + return APR_SUCCESS; +} + +static apr_status_t setup_key_authz(md_acme_authz_cha_t *cha, md_acme_authz_t *authz, + md_acme_t *acme, apr_pool_t *p, int *pchanged) +{ + const char *thumb64, *key_authz; + apr_status_t rv; + + (void)authz; + assert(cha); + assert(cha->token); + + *pchanged = 0; + if (APR_SUCCESS == (rv = md_jws_pkey_thumb(&thumb64, p, acme->acct_key))) { + key_authz = apr_psprintf(p, "%s.%s", cha->token, thumb64); + if (cha->key_authz) { + if (strcmp(key_authz, cha->key_authz)) { + /* Hu? Did the account change key? */ + cha->key_authz = NULL; + } + } + if (!cha->key_authz) { + cha->key_authz = key_authz; + *pchanged = 1; + } + } + return rv; +} + +static apr_status_t cha_http_01_setup(md_acme_authz_cha_t *cha, md_acme_authz_t *authz, + md_acme_t *acme, md_store_t *store, + md_pkeys_spec_t *key_specs, + apr_array_header_t *acme_tls_1_domains, const md_t *md, + apr_table_t *env, md_result_t *result, apr_pool_t *p) +{ + const char *data; + apr_status_t rv; + int notify_server; + + (void)key_specs; + (void)env; + (void)acme_tls_1_domains; + (void)md; + + if (APR_SUCCESS != (rv = setup_key_authz(cha, authz, acme, p, ¬ify_server))) { + goto out; + } + + rv = md_store_load(store, MD_SG_CHALLENGES, authz->domain, MD_FN_HTTP01, + MD_SV_TEXT, (void**)&data, p); + if ((APR_SUCCESS == rv && strcmp(cha->key_authz, data)) || APR_STATUS_IS_ENOENT(rv)) { + const char *content = apr_psprintf(p, "%s\n", cha->key_authz); + rv = md_store_save(store, p, MD_SG_CHALLENGES, authz->domain, MD_FN_HTTP01, + MD_SV_TEXT, (void*)content, 0); + notify_server = 1; + } + + if (APR_SUCCESS == rv && notify_server) { + authz_req_ctx ctx; + const char *event; + + /* Raise event that challenge data has been set up before we tell the + ACME server. Clusters might want to distribute it. */ + event = apr_psprintf(p, "challenge-setup:%s:%s", MD_AUTHZ_TYPE_HTTP01, authz->domain); + rv = md_result_raise(result, event, p); + if (APR_SUCCESS != rv) { + md_log_perror(MD_LOG_MARK, MD_LOG_DEBUG, rv, p, + "%s: event '%s' failed. aborting challenge setup", + authz->domain, event); + goto out; + } + /* challenge is setup or was changed from previous data, tell ACME server + * so it may (re)try verification */ + authz_req_ctx_init(&ctx, acme, NULL, authz, p); + ctx.challenge = cha; + rv = md_acme_POST(acme, cha->uri, on_init_authz_resp, authz_http_set, NULL, NULL, &ctx); + } +out: + return rv; +} + +void tls_alpn01_fnames(apr_pool_t *p, md_pkey_spec_t *kspec, char **keyfn, char **certfn ) +{ + *keyfn = apr_pstrcat(p, "acme-tls-alpn-01-", md_pkey_filename(kspec, p), NULL); + *certfn = apr_pstrcat(p, "acme-tls-alpn-01-", md_chain_filename(kspec, p), NULL); +} + +static apr_status_t cha_tls_alpn_01_setup(md_acme_authz_cha_t *cha, md_acme_authz_t *authz, + md_acme_t *acme, md_store_t *store, + md_pkeys_spec_t *key_specs, + apr_array_header_t *acme_tls_1_domains, const md_t *md, + apr_table_t *env, md_result_t *result, apr_pool_t *p) +{ + const char *acme_id, *token; + apr_status_t rv; + int notify_server; + md_data_t data; + int i; + + (void)env; + (void)md; + if (md_array_str_index(acme_tls_1_domains, authz->domain, 0, 0) < 0) { + rv = APR_ENOTIMPL; + if (acme_tls_1_domains->nelts) { + md_log_perror(MD_LOG_MARK, MD_LOG_DEBUG, 0, p, + "%s: protocol 'acme-tls/1' seems not enabled for this domain, " + "but is enabled for other associated domains. " + "Continuing with fingers crossed.", authz->domain); + } + else { + md_log_perror(MD_LOG_MARK, MD_LOG_INFO, 0, p, + "%s: protocol 'acme-tls/1' seems not enabled for this or " + "any other associated domain. Not attempting challenge " + "type tls-alpn-01.", authz->domain); + goto out; + } + } + if (APR_SUCCESS != (rv = setup_key_authz(cha, authz, acme, p, ¬ify_server))) { + goto out; + } + + /* Create a "tls-alpn-01" certificate for the domain we want to authenticate. + * The server will need to answer a TLS connection with SNI == authz->domain + * and ALPN protocol "acme-tls/1" with this certificate. + */ + md_data_init_str(&data, cha->key_authz); + rv = md_crypt_sha256_digest_hex(&token, p, &data); + if (APR_SUCCESS != rv) { + md_log_perror(MD_LOG_MARK, MD_LOG_ERR, rv, p, "%s: create tls-alpn-01 validation token", + authz->domain); + goto out; + } + acme_id = apr_psprintf(p, "critical,DER:04:20:%s", token); + + /* Each configured key type must be generated to ensure: + * that any fallback certs already given to mod_ssl are replaced. + * We expect that the validation client (at the CA) can deal with at + * least one of them. + */ + + for (i = 0; i < md_pkeys_spec_count(key_specs); ++i) { + char *kfn, *cfn; + md_cert_t *cha_cert; + md_pkey_t *cha_key; + md_pkey_spec_t *key_spec; + + key_spec = md_pkeys_spec_get(key_specs, i); + tls_alpn01_fnames(p, key_spec, &kfn, &cfn); + + rv = md_store_load(store, MD_SG_CHALLENGES, authz->domain, cfn, + MD_SV_CERT, (void**)&cha_cert, p); + if ((APR_SUCCESS == rv && !md_cert_covers_domain(cha_cert, authz->domain)) + || APR_STATUS_IS_ENOENT(rv)) { + if (APR_SUCCESS != (rv = md_pkey_gen(&cha_key, p, key_spec))) { + md_log_perror(MD_LOG_MARK, MD_LOG_ERR, rv, p, "%s: create tls-alpn-01 %s challenge key", + authz->domain, md_pkey_spec_name(key_spec)); + goto out; + } + + if (APR_SUCCESS != (rv = md_cert_make_tls_alpn_01(&cha_cert, authz->domain, acme_id, cha_key, + apr_time_from_sec(7 * MD_SECS_PER_DAY), p))) { + md_log_perror(MD_LOG_MARK, MD_LOG_ERR, rv, p, "%s: create tls-alpn-01 %s challenge cert", + authz->domain, md_pkey_spec_name(key_spec)); + goto out; + } + + if (APR_SUCCESS == (rv = md_store_save(store, p, MD_SG_CHALLENGES, authz->domain, kfn, + MD_SV_PKEY, (void*)cha_key, 0))) { + rv = md_store_save(store, p, MD_SG_CHALLENGES, authz->domain, cfn, + MD_SV_CERT, (void*)cha_cert, 0); + } + ++notify_server; + } + } + + if (APR_SUCCESS == rv && notify_server) { + authz_req_ctx ctx; + const char *event; + + /* Raise event that challenge data has been set up before we tell the + ACME server. Clusters might want to distribute it. */ + event = apr_psprintf(p, "challenge-setup:%s:%s", MD_AUTHZ_TYPE_TLSALPN01, authz->domain); + rv = md_result_raise(result, event, p); + if (APR_SUCCESS != rv) { + md_log_perror(MD_LOG_MARK, MD_LOG_DEBUG, rv, p, + "%s: event '%s' failed. aborting challenge setup", + authz->domain, event); + goto out; + } + /* challenge is setup or was changed from previous data, tell ACME server + * so it may (re)try verification */ + authz_req_ctx_init(&ctx, acme, NULL, authz, p); + ctx.challenge = cha; + rv = md_acme_POST(acme, cha->uri, on_init_authz_resp, authz_http_set, NULL, NULL, &ctx); + } +out: + return rv; +} + +static apr_status_t cha_dns_01_setup(md_acme_authz_cha_t *cha, md_acme_authz_t *authz, + md_acme_t *acme, md_store_t *store, + md_pkeys_spec_t *key_specs, + apr_array_header_t *acme_tls_1_domains, const md_t *md, + apr_table_t *env, md_result_t *result, apr_pool_t *p) +{ + const char *token; + const char * const *argv; + const char *cmdline, *dns01_cmd; + apr_status_t rv; + int exit_code, notify_server; + authz_req_ctx ctx; + md_data_t data; + const char *event; + + (void)store; + (void)key_specs; + (void)acme_tls_1_domains; + + dns01_cmd = md->dns01_cmd; + if (!dns01_cmd) + dns01_cmd = apr_table_get(env, MD_KEY_CMD_DNS01); + if (!dns01_cmd) { + rv = APR_ENOTIMPL; + md_log_perror(MD_LOG_MARK, MD_LOG_DEBUG, rv, p, "%s: dns-01 command not set", + authz->domain); + goto out; + } + + if (APR_SUCCESS != (rv = setup_key_authz(cha, authz, acme, p, ¬ify_server))) { + goto out; + } + + md_data_init_str(&data, cha->key_authz); + rv = md_crypt_sha256_digest64(&token, p, &data); + if (APR_SUCCESS != rv) { + md_log_perror(MD_LOG_MARK, MD_LOG_ERR, rv, p, "%s: create dns-01 token for %s", + md->name, authz->domain); + goto out; + } + + cmdline = apr_psprintf(p, "%s setup %s %s", dns01_cmd, authz->domain, token); + md_log_perror(MD_LOG_MARK, MD_LOG_DEBUG, 0, p, + "%s: dns-01 setup command: %s", authz->domain, cmdline); + + apr_tokenize_to_argv(cmdline, (char***)&argv, p); + if (APR_SUCCESS != (rv = md_util_exec(p, argv[0], argv, NULL, &exit_code))) { + md_log_perror(MD_LOG_MARK, MD_LOG_WARNING, rv, p, + "%s: dns-01 setup command failed to execute for %s", md->name, authz->domain); + goto out; + } + if (exit_code) { + rv = APR_EGENERAL; + md_log_perror(MD_LOG_MARK, MD_LOG_INFO, rv, p, + "%s: dns-01 setup command returns %d for %s", md->name, exit_code, authz->domain); + goto out; + } + + /* Raise event that challenge data has been set up before we tell the + ACME server. Clusters might want to distribute it. */ + event = apr_psprintf(p, "challenge-setup:%s:%s", MD_AUTHZ_TYPE_DNS01, authz->domain); + rv = md_result_raise(result, event, p); + if (APR_SUCCESS != rv) { + md_log_perror(MD_LOG_MARK, MD_LOG_DEBUG, rv, p, + "%s: event '%s' failed. aborting challenge setup", + authz->domain, event); + goto out; + } + /* challenge is setup, tell ACME server so it may (re)try verification */ + md_log_perror(MD_LOG_MARK, MD_LOG_DEBUG, rv, p, "%s: dns-01 setup succeeded for %s", + md->name, authz->domain); + authz_req_ctx_init(&ctx, acme, NULL, authz, p); + ctx.challenge = cha; + rv = md_acme_POST(acme, cha->uri, on_init_authz_resp, authz_http_set, NULL, NULL, &ctx); + +out: + return rv; +} + +static apr_status_t cha_dns_01_teardown(md_store_t *store, const char *domain, const md_t *md, + apr_table_t *env, apr_pool_t *p) +{ + const char * const *argv; + const char *cmdline, *dns01_cmd; + apr_status_t rv; + int exit_code; + + (void)store; + + dns01_cmd = md->dns01_cmd; + if (!dns01_cmd) + dns01_cmd = apr_table_get(env, MD_KEY_CMD_DNS01); + if (!dns01_cmd) { + rv = APR_ENOTIMPL; + md_log_perror(MD_LOG_MARK, MD_LOG_DEBUG, 0, p, "%s: dns-01 command not set for %s", + md->name, domain); + goto out; + } + + cmdline = apr_psprintf(p, "%s teardown %s", dns01_cmd, domain); + apr_tokenize_to_argv(cmdline, (char***)&argv, p); + if (APR_SUCCESS != (rv = md_util_exec(p, argv[0], argv, NULL, &exit_code)) || exit_code) { + md_log_perror(MD_LOG_MARK, MD_LOG_WARNING, rv, p, + "%s: dns-01 teardown command failed (exit code=%d) for %s", + md->name, exit_code, domain); + } +out: + return rv; +} + +static apr_status_t cha_teardown_dir(md_store_t *store, const char *domain, const md_t *md, + apr_table_t *env, apr_pool_t *p) +{ + (void)md; + (void)env; + return md_store_purge(store, p, MD_SG_CHALLENGES, domain); +} + +typedef apr_status_t cha_setup(md_acme_authz_cha_t *cha, md_acme_authz_t *authz, + md_acme_t *acme, md_store_t *store, + md_pkeys_spec_t *key_specs, + apr_array_header_t *acme_tls_1_domains, const md_t *md, + apr_table_t *env, md_result_t *result, apr_pool_t *p); + +typedef apr_status_t cha_teardown(md_store_t *store, const char *domain, const md_t *md, + apr_table_t *env, apr_pool_t *p); + +typedef struct { + const char *name; + cha_setup *setup; + cha_teardown *teardown; +} cha_type; + +static const cha_type CHA_TYPES[] = { + { MD_AUTHZ_TYPE_HTTP01, cha_http_01_setup, cha_teardown_dir }, + { MD_AUTHZ_TYPE_TLSALPN01, cha_tls_alpn_01_setup, cha_teardown_dir }, + { MD_AUTHZ_TYPE_DNS01, cha_dns_01_setup, cha_dns_01_teardown }, +}; +static const apr_size_t CHA_TYPES_LEN = (sizeof(CHA_TYPES)/sizeof(CHA_TYPES[0])); + +typedef struct { + apr_pool_t *p; + const char *type; + md_acme_authz_cha_t *accepted; + apr_array_header_t *offered; +} cha_find_ctx; + +static apr_status_t collect_offered(void *baton, size_t index, md_json_t *json) +{ + cha_find_ctx *ctx = baton; + const char *ctype; + + (void)index; + if ((ctype = md_json_gets(json, MD_KEY_TYPE, NULL))) { + APR_ARRAY_PUSH(ctx->offered, const char*) = apr_pstrdup(ctx->p, ctype); + } + return 1; +} + +static apr_status_t find_type(void *baton, size_t index, md_json_t *json) +{ + cha_find_ctx *ctx = baton; + + const char *ctype = md_json_gets(json, MD_KEY_TYPE, NULL); + if (ctype && !apr_strnatcasecmp(ctx->type, ctype)) { + ctx->accepted = cha_from_json(ctx->p, index, json); + return 0; + } + return 1; +} + +apr_status_t md_acme_authz_respond(md_acme_authz_t *authz, md_acme_t *acme, md_store_t *store, + apr_array_header_t *challenges, md_pkeys_spec_t *key_specs, + apr_array_header_t *acme_tls_1_domains, const md_t *md, + apr_table_t *env, apr_pool_t *p, const char **psetup_token, + md_result_t *result) +{ + apr_status_t rv; + int i, j; + cha_find_ctx fctx; + const char *challenge_setup; + + assert(acme); + assert(authz); + assert(authz->resource); + + fctx.p = p; + fctx.accepted = NULL; + + /* Look in the order challenge types are defined: + * - if they are offered by the CA, try to set it up + * - if setup was successful, we are done and the CA will evaluate us + * - if setup failed, continue to look for another supported challenge type + * - if there is no overlap in types, tell the user that she has to configure + * either more types (dns, tls-alpn-01), make ports available or refrain + * from using wildcard domains when dns is not available. etc. + * - if there was an overlap, but no setup was successful, report that. We + * will retry this, maybe the failure is temporary (e.g. command to setup DNS + */ + md_result_printf(result, 0, "%s: selecting suitable authorization challenge " + "type, this domain supports %s", + authz->domain, apr_array_pstrcat(p, challenges, ' ')); + rv = APR_ENOTIMPL; + challenge_setup = NULL; + for (i = 0; i < challenges->nelts; ++i) { + fctx.type = APR_ARRAY_IDX(challenges, i, const char *); + fctx.accepted = NULL; + md_json_itera(find_type, &fctx, authz->resource, MD_KEY_CHALLENGES, NULL); + md_log_perror(MD_LOG_MARK, MD_LOG_TRACE1, 0, p, + "%s: challenge type '%s' for %s: %s", + authz->domain, fctx.type, md->name, + fctx.accepted? "maybe acceptable" : "not applicable"); + + if (fctx.accepted) { + for (j = 0; j < (int)CHA_TYPES_LEN; ++j) { + if (!apr_strnatcasecmp(CHA_TYPES[j].name, fctx.accepted->type)) { + md_result_activity_printf(result, "Setting up challenge '%s' for domain %s", + fctx.accepted->type, authz->domain); + rv = CHA_TYPES[j].setup(fctx.accepted, authz, acme, store, key_specs, + acme_tls_1_domains, md, env, result, p); + if (APR_SUCCESS == rv) { + md_log_perror(MD_LOG_MARK, MD_LOG_DEBUG, rv, p, + "%s: set up challenge '%s' for %s", + authz->domain, fctx.accepted->type, md->name); + challenge_setup = CHA_TYPES[j].name; + goto out; + } + md_result_printf(result, rv, "error setting up challenge '%s' for %s, " + "for domain %s, looking for other option", + fctx.accepted->type, authz->domain, md->name); + md_result_log(result, MD_LOG_INFO); + } + } + } + } + +out: + *psetup_token = (APR_SUCCESS == rv)? apr_psprintf(p, "%s:%s", challenge_setup, authz->domain) : NULL; + if (!fctx.accepted || APR_ENOTIMPL == rv) { + rv = APR_EINVAL; + fctx.offered = apr_array_make(p, 5, sizeof(const char*)); + md_json_itera(collect_offered, &fctx, authz->resource, MD_KEY_CHALLENGES, NULL); + md_result_printf(result, rv, "None of offered challenge types for domain %s are supported. " + "The server offered '%s' and available are: '%s'.", + authz->domain, + apr_array_pstrcat(p, fctx.offered, ' '), + apr_array_pstrcat(p, challenges, ' ')); + result->problem = "challenge-mismatch"; + md_result_log(result, MD_LOG_ERR); + } + else if (APR_SUCCESS != rv) { + fctx.offered = apr_array_make(p, 5, sizeof(const char*)); + md_json_itera(collect_offered, &fctx, authz->resource, MD_KEY_CHALLENGES, NULL); + md_result_printf(result, rv, "None of the offered challenge types %s offered " + "for domain %s could be setup successfully. Please check the " + "log for errors.", authz->domain, + apr_array_pstrcat(p, fctx.offered, ' ')); + result->problem = "challenge-setup-failure"; + md_result_log(result, MD_LOG_ERR); + } + return rv; +} + +apr_status_t md_acme_authz_teardown(struct md_store_t *store, const char *token, + const md_t *md, apr_table_t *env, apr_pool_t *p) +{ + char *challenge, *domain; + int i; + + if (strchr(token, ':')) { + challenge = apr_pstrdup(p, token); + domain = strchr(challenge, ':'); + *domain = '\0'; domain++; + for (i = 0; i < (int)CHA_TYPES_LEN; ++i) { + if (!apr_strnatcasecmp(CHA_TYPES[i].name, challenge)) { + if (CHA_TYPES[i].teardown) { + return CHA_TYPES[i].teardown(store, domain, md, env, p); + } + break; + } + } + } + return APR_SUCCESS; +} + |