Adding upstream version 2.4.56.upstream/2.4.56

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 462 insertions, 0 deletions

diff --git a/modules/md/md_core.c b/modules/md/md_core.c
new file mode 100644
index 0000000..7aacff0
--- /dev/null
+++ b/modules/md/md_core.c
@@ -0,0 +1,462 @@
+/* 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_uri.h>
+#include <apr_tables.h>
+#include <apr_time.h>
+#include <apr_date.h>
+
+#include "md_json.h"
+#include "md.h"
+#include "md_crypt.h"
+#include "md_log.h"
+#include "md_store.h"
+#include "md_util.h"
+
+
+int md_contains(const md_t *md, const char *domain, int case_sensitive)
+{
+    if (md_array_str_index(md->domains, domain, 0, case_sensitive) >= 0) {
+        return 1;
+    }
+    return md_dns_domains_match(md->domains, domain);
+}
+
+const char *md_common_name(const md_t *md1, const md_t *md2)
+{
+    int i;
+    
+    if (md1 == NULL || md1->domains == NULL
+        || md2 == NULL || md2->domains == NULL) {
+        return NULL;
+    }
+    
+    for (i = 0; i < md1->domains->nelts; ++i) {
+        const char *name1 = APR_ARRAY_IDX(md1->domains, i, const char*);
+        if (md_contains(md2, name1, 0)) {
+            return name1;
+        }
+    }
+    return NULL;
+}
+
+int md_domains_overlap(const md_t *md1, const md_t *md2)
+{
+    return md_common_name(md1, md2) != NULL;
+}
+
+apr_size_t md_common_name_count(const md_t *md1, const md_t *md2)
+{
+    int i;
+    apr_size_t hits;
+    
+    if (md1 == NULL || md1->domains == NULL
+        || md2 == NULL || md2->domains == NULL) {
+        return 0;
+    }
+    
+    hits = 0;
+    for (i = 0; i < md1->domains->nelts; ++i) {
+        const char *name1 = APR_ARRAY_IDX(md1->domains, i, const char*);
+        if (md_contains(md2, name1, 0)) {
+            ++hits;
+        }
+    }
+    return hits;
+}
+
+int md_is_covered_by_alt_names(const md_t *md, const struct apr_array_header_t* alt_names)
+{
+    const char *name;
+    int i;
+    
+    if (alt_names) {
+        for (i = 0; i < md->domains->nelts; ++i) {
+            name = APR_ARRAY_IDX(md->domains, i, const char *);
+            if (!md_dns_domains_match(alt_names, name)) {
+                return 0;
+            }
+        }
+        return 1;
+    }
+    return 0;
+}
+
+md_t *md_create_empty(apr_pool_t *p)
+{
+    md_t *md = apr_pcalloc(p, sizeof(*md));
+    if (md) {
+        md->domains = apr_array_make(p, 5, sizeof(const char *));
+        md->contacts = apr_array_make(p, 5, sizeof(const char *));
+        md->renew_mode = MD_RENEW_DEFAULT;
+        md->require_https = MD_REQUIRE_UNSET;
+        md->must_staple = -1;
+        md->transitive = -1;
+        md->acme_tls_1_domains = apr_array_make(p, 5, sizeof(const char *));
+        md->stapling = -1;
+        md->defn_name = "unknown";
+        md->defn_line_number = 0;
+    }
+    return md;
+}
+
+int md_equal_domains(const md_t *md1, const md_t *md2, int case_sensitive)
+{
+    int i;
+    if (md1->domains->nelts == md2->domains->nelts) {
+        for (i = 0; i < md1->domains->nelts; ++i) {
+            const char *name1 = APR_ARRAY_IDX(md1->domains, i, const char*);
+            if (!md_contains(md2, name1, case_sensitive)) {
+                return 0;
+            }
+        }
+        return 1;
+    }
+    return 0;
+}
+
+int md_contains_domains(const md_t *md1, const md_t *md2)
+{
+    int i;
+    if (md1->domains->nelts >= md2->domains->nelts) {
+        for (i = 0; i < md2->domains->nelts; ++i) {
+            const char *name2 = APR_ARRAY_IDX(md2->domains, i, const char*);
+            if (!md_contains(md1, name2, 0)) {
+                return 0;
+            }
+        }
+        return 1;
+    }
+    return 0;
+}
+
+md_t *md_get_by_name(struct apr_array_header_t *mds, const char *name)
+{
+    int i;
+    for (i = 0; i < mds->nelts; ++i) {
+        md_t *md = APR_ARRAY_IDX(mds, i, md_t *);
+        if (!strcmp(name, md->name)) {
+            return md;
+        }
+    }
+    return NULL;
+}
+
+md_t *md_get_by_domain(struct apr_array_header_t *mds, const char *domain)
+{
+    int i;
+    for (i = 0; i < mds->nelts; ++i) {
+        md_t *md = APR_ARRAY_IDX(mds, i, md_t *);
+        if (md_contains(md, domain, 0)) {
+            return md;
+        }
+    }
+    return NULL;
+}
+
+md_t *md_get_by_dns_overlap(struct apr_array_header_t *mds, const md_t *md)
+{
+    int i;
+    for (i = 0; i < mds->nelts; ++i) {
+        md_t *o = APR_ARRAY_IDX(mds, i, md_t *);
+        if (strcmp(o->name, md->name) && md_common_name(o, md)) {
+            return o;
+        }
+    }
+    return NULL;
+}
+
+int md_cert_count(const md_t *md)
+{
+    /* cert are defined as a list of static files or a list of private key specs */
+    if (md->cert_files && md->cert_files->nelts) {
+        return md->cert_files->nelts;
+    }
+    return md_pkeys_spec_count(md->pks);
+}
+
+md_t *md_create(apr_pool_t *p, apr_array_header_t *domains)
+{
+    md_t *md;
+    
+    md = md_create_empty(p);
+    md->domains = md_array_str_compact(p, domains, 0);
+    md->name = APR_ARRAY_IDX(md->domains, 0, const char *);
+    
+    return md;
+}
+
+/**************************************************************************************************/
+/* lifetime */
+
+md_t *md_copy(apr_pool_t *p, const md_t *src)
+{
+    md_t *md;
+    
+    md = apr_pcalloc(p, sizeof(*md));
+    if (md) {
+        memcpy(md, src, sizeof(*md));
+        md->domains = apr_array_copy(p, src->domains);
+        md->contacts = apr_array_copy(p, src->contacts);
+        if (src->ca_challenges) {
+            md->ca_challenges = apr_array_copy(p, src->ca_challenges);
+        }
+        md->acme_tls_1_domains = apr_array_copy(p, src->acme_tls_1_domains);
+        md->pks = md_pkeys_spec_clone(p, src->pks);
+    }    
+    return md;   
+}
+
+md_t *md_clone(apr_pool_t *p, const md_t *src)
+{
+    md_t *md;
+    
+    md = apr_pcalloc(p, sizeof(*md));
+    if (md) {
+        md->state = src->state;
+        md->name = apr_pstrdup(p, src->name);
+        md->require_https = src->require_https;
+        md->must_staple = src->must_staple;
+        md->renew_mode = src->renew_mode;
+        md->domains = md_array_str_compact(p, src->domains, 0);
+        md->pks = md_pkeys_spec_clone(p, src->pks);
+        md->renew_window = src->renew_window;
+        md->warn_window = src->warn_window;
+        md->contacts = md_array_str_clone(p, src->contacts);
+        if (src->ca_proto) md->ca_proto = apr_pstrdup(p, src->ca_proto);
+        if (src->ca_urls) {
+            md->ca_urls = md_array_str_clone(p, src->ca_urls);
+        }
+        if (src->ca_effective) md->ca_effective = apr_pstrdup(p, src->ca_effective);
+        if (src->ca_account) md->ca_account = apr_pstrdup(p, src->ca_account);
+        if (src->ca_agreement) md->ca_agreement = apr_pstrdup(p, src->ca_agreement);
+        if (src->defn_name) md->defn_name = apr_pstrdup(p, src->defn_name);
+        md->defn_line_number = src->defn_line_number;
+        if (src->ca_challenges) {
+            md->ca_challenges = md_array_str_clone(p, src->ca_challenges);
+        }
+        md->acme_tls_1_domains = md_array_str_compact(p, src->acme_tls_1_domains, 0);
+        md->stapling = src->stapling;
+        if (src->dns01_cmd) md->dns01_cmd = apr_pstrdup(p, src->dns01_cmd);
+        if (src->cert_files) md->cert_files = md_array_str_clone(p, src->cert_files);
+        if (src->pkey_files) md->pkey_files = md_array_str_clone(p, src->pkey_files);
+    }    
+    return md;   
+}
+
+/**************************************************************************************************/
+/* format conversion */
+
+md_json_t *md_to_json(const md_t *md, apr_pool_t *p)
+{
+    md_json_t *json = md_json_create(p);
+    if (json) {
+        apr_array_header_t *domains = md_array_str_compact(p, md->domains, 0);
+        md_json_sets(md->name, json, MD_KEY_NAME, NULL);
+        md_json_setsa(domains, json, MD_KEY_DOMAINS, NULL);
+        md_json_setsa(md->contacts, json, MD_KEY_CONTACTS, NULL);
+        md_json_setl(md->transitive, json, MD_KEY_TRANSITIVE, NULL);
+        md_json_sets(md->ca_account, json, MD_KEY_CA, MD_KEY_ACCOUNT, NULL);
+        md_json_sets(md->ca_proto, json, MD_KEY_CA, MD_KEY_PROTO, NULL);
+        md_json_sets(md->ca_effective, json, MD_KEY_CA, MD_KEY_URL, NULL);
+        if (md->ca_urls && !apr_is_empty_array(md->ca_urls)) {
+            md_json_setsa(md->ca_urls, json, MD_KEY_CA, MD_KEY_URLS, NULL);
+        }
+        md_json_sets(md->ca_agreement, json, MD_KEY_CA, MD_KEY_AGREEMENT, NULL);
+        if (!md_pkeys_spec_is_empty(md->pks)) {
+            md_json_setj(md_pkeys_spec_to_json(md->pks, p), json, MD_KEY_PKEY, NULL);
+        }
+        md_json_setl(md->state, json, MD_KEY_STATE, NULL);
+        if (md->state_descr)
+            md_json_sets(md->state_descr, json, MD_KEY_STATE_DESCR, NULL);
+        md_json_setl(md->renew_mode, json, MD_KEY_RENEW_MODE, NULL);
+        if (md->renew_window)
+            md_json_sets(md_timeslice_format(md->renew_window, p), json, MD_KEY_RENEW_WINDOW, NULL);
+        if (md->warn_window)
+            md_json_sets(md_timeslice_format(md->warn_window, p), json, MD_KEY_WARN_WINDOW, NULL);
+        if (md->ca_challenges && md->ca_challenges->nelts > 0) {
+            apr_array_header_t *na;
+            na = md_array_str_compact(p, md->ca_challenges, 0);
+            md_json_setsa(na, json, MD_KEY_CA, MD_KEY_CHALLENGES, NULL);
+        }
+        switch (md->require_https) {
+            case MD_REQUIRE_TEMPORARY:
+                md_json_sets(MD_KEY_TEMPORARY, json, MD_KEY_REQUIRE_HTTPS, NULL);
+                break;
+            case MD_REQUIRE_PERMANENT:
+                md_json_sets(MD_KEY_PERMANENT, json, MD_KEY_REQUIRE_HTTPS, NULL);
+                break;
+            default:
+                break;
+        }
+        md_json_setb(md->must_staple > 0, json, MD_KEY_MUST_STAPLE, NULL);
+        md_json_setsa(md->acme_tls_1_domains, json, MD_KEY_PROTO, MD_KEY_ACME_TLS_1, NULL);
+        if (md->cert_files) md_json_setsa(md->cert_files, json, MD_KEY_CERT_FILES, NULL);
+        if (md->pkey_files) md_json_setsa(md->pkey_files, json, MD_KEY_PKEY_FILES, NULL);
+        md_json_setb(md->stapling > 0, json, MD_KEY_STAPLING, NULL);
+        if (md->dns01_cmd) md_json_sets(md->dns01_cmd, json, MD_KEY_CMD_DNS01, NULL);
+        if (md->ca_eab_kid && strcmp("none", md->ca_eab_kid)) {
+            md_json_sets(md->ca_eab_kid, json, MD_KEY_EAB, MD_KEY_KID, NULL);
+            if (md->ca_eab_hmac) md_json_sets(md->ca_eab_hmac, json, MD_KEY_EAB, MD_KEY_HMAC, NULL);
+        }
+        return json;
+    }
+    return NULL;
+}
+
+md_t *md_from_json(md_json_t *json, apr_pool_t *p)
+{
+    const char *s;
+    md_t *md = md_create_empty(p);
+    if (md) {
+        md->name = md_json_dups(p, json, MD_KEY_NAME, NULL);            
+        md_json_dupsa(md->domains, p, json, MD_KEY_DOMAINS, NULL);
+        md_json_dupsa(md->contacts, p, json, MD_KEY_CONTACTS, NULL);
+        md->ca_account = md_json_dups(p, json, MD_KEY_CA, MD_KEY_ACCOUNT, NULL);
+        md->ca_proto = md_json_dups(p, json, MD_KEY_CA, MD_KEY_PROTO, NULL);
+        md->ca_effective = md_json_dups(p, json, MD_KEY_CA, MD_KEY_URL, NULL);
+        if (md_json_has_key(json, MD_KEY_CA, MD_KEY_URLS, NULL)) {
+            md->ca_urls = apr_array_make(p, 5, sizeof(const char*));
+            md_json_dupsa(md->ca_urls, p, json, MD_KEY_CA, MD_KEY_URLS, NULL);
+        }
+        else if (md->ca_effective) {
+            /* compat for old format where we had only a single url */
+            md->ca_urls = apr_array_make(p, 5, sizeof(const char*));
+            APR_ARRAY_PUSH(md->ca_urls, const char*) = md->ca_effective;
+        }
+        md->ca_agreement = md_json_dups(p, json, MD_KEY_CA, MD_KEY_AGREEMENT, NULL);
+        if (md_json_has_key(json, MD_KEY_PKEY, NULL)) {
+            md->pks = md_pkeys_spec_from_json(md_json_getj(json, MD_KEY_PKEY, NULL), p);
+        }
+        md->state = (md_state_t)md_json_getl(json, MD_KEY_STATE, NULL);
+        md->state_descr = md_json_dups(p, json, MD_KEY_STATE_DESCR, NULL);
+        if (MD_S_EXPIRED_DEPRECATED == md->state) md->state = MD_S_COMPLETE;
+        md->renew_mode = (int)md_json_getl(json, MD_KEY_RENEW_MODE, NULL);
+        md->domains = md_array_str_compact(p, md->domains, 0);
+        md->transitive = (int)md_json_getl(json, MD_KEY_TRANSITIVE, NULL);
+        s = md_json_gets(json, MD_KEY_RENEW_WINDOW, NULL);
+        md_timeslice_parse(&md->renew_window, p, s, MD_TIME_LIFE_NORM);
+        s = md_json_gets(json, MD_KEY_WARN_WINDOW, NULL);
+        md_timeslice_parse(&md->warn_window, p, s, MD_TIME_LIFE_NORM);
+        if (md_json_has_key(json, MD_KEY_CA, MD_KEY_CHALLENGES, NULL)) {
+            md->ca_challenges = apr_array_make(p, 5, sizeof(const char*));
+            md_json_dupsa(md->ca_challenges, p, json, MD_KEY_CA, MD_KEY_CHALLENGES, NULL);
+        }
+        md->require_https = MD_REQUIRE_OFF;
+        s = md_json_gets(json, MD_KEY_REQUIRE_HTTPS, NULL);
+        if (s && !strcmp(MD_KEY_TEMPORARY, s)) {
+            md->require_https = MD_REQUIRE_TEMPORARY;
+        }
+        else if (s && !strcmp(MD_KEY_PERMANENT, s)) {
+            md->require_https = MD_REQUIRE_PERMANENT;
+        }
+        md->must_staple = (int)md_json_getb(json, MD_KEY_MUST_STAPLE, NULL);
+        md_json_dupsa(md->acme_tls_1_domains, p, json, MD_KEY_PROTO, MD_KEY_ACME_TLS_1, NULL);
+            
+        if (md_json_has_key(json, MD_KEY_CERT_FILES, NULL)) {
+            md->cert_files = apr_array_make(p, 3, sizeof(char*));
+            md->pkey_files = apr_array_make(p, 3, sizeof(char*));
+            md_json_dupsa(md->cert_files, p, json, MD_KEY_CERT_FILES, NULL);
+            md_json_dupsa(md->pkey_files, p, json, MD_KEY_PKEY_FILES, NULL);
+        }
+        md->stapling = (int)md_json_getb(json, MD_KEY_STAPLING, NULL);
+        md->dns01_cmd = md_json_dups(p, json, MD_KEY_CMD_DNS01, NULL);
+        if (md_json_has_key(json, MD_KEY_EAB, NULL)) {
+            md->ca_eab_kid = md_json_dups(p, json, MD_KEY_EAB, MD_KEY_KID, NULL);
+            md->ca_eab_hmac = md_json_dups(p, json, MD_KEY_EAB, MD_KEY_HMAC, NULL);
+        }
+        return md;
+    }
+    return NULL;
+}
+
+md_json_t *md_to_public_json(const md_t *md, apr_pool_t *p)
+{
+    md_json_t *json = md_to_json(md, p);
+    if (md_json_has_key(json, MD_KEY_EAB, MD_KEY_HMAC, NULL)) {
+        md_json_sets("***", json, MD_KEY_EAB, MD_KEY_HMAC, NULL);
+    }
+    return json;
+}
+
+typedef struct {
+    const char *name;
+    const char *url;
+} md_ca_t;
+
+#define LE_ACMEv2_PROD      "https://acme-v02.api.letsencrypt.org/directory"
+#define LE_ACMEv2_STAGING   "https://acme-staging-v02.api.letsencrypt.org/directory"
+#define BUYPASS_ACME        "https://api.buypass.com/acme/directory"
+#define BUYPASS_ACME_TEST   "https://api.test4.buypass.no/acme/directory"
+
+static md_ca_t KNOWN_CAs[] = {
+    { "LetsEncrypt", LE_ACMEv2_PROD },
+    { "LetsEncrypt-Test", LE_ACMEv2_STAGING },
+    { "Buypass", BUYPASS_ACME },
+    { "Buypass-Test", BUYPASS_ACME_TEST },
+};
+
+const char *md_get_ca_name_from_url(apr_pool_t *p, const char *url)
+{
+    apr_uri_t uri_parsed;
+    unsigned int i;
+
+    for (i = 0; i < sizeof(KNOWN_CAs)/sizeof(KNOWN_CAs[0]); ++i) {
+        if (!apr_strnatcasecmp(KNOWN_CAs[i].url, url)) {
+            return KNOWN_CAs[i].name;
+        }
+    }
+    if (APR_SUCCESS == apr_uri_parse(p, url, &uri_parsed)) {
+        return uri_parsed.hostname;
+    }
+    return apr_pstrdup(p, url);
+}
+
+apr_status_t md_get_ca_url_from_name(const char **purl, apr_pool_t *p, const char *name)
+{
+    const char *err;
+    unsigned int i;
+    apr_status_t rv = APR_SUCCESS;
+
+    *purl = NULL;
+    for (i = 0; i < sizeof(KNOWN_CAs)/sizeof(KNOWN_CAs[0]); ++i) {
+        if (!apr_strnatcasecmp(KNOWN_CAs[i].name, name)) {
+            *purl = KNOWN_CAs[i].url;
+            goto leave;
+        }
+    }
+    *purl = name;
+    rv = md_util_abs_uri_check(p, name, &err);
+    if (APR_SUCCESS != rv) {
+        apr_array_header_t *names;
+
+        names = apr_array_make(p, 10, sizeof(const char*));
+        for (i = 0; i < sizeof(KNOWN_CAs)/sizeof(KNOWN_CAs[0]); ++i) {
+            APR_ARRAY_PUSH(names, const char *) = KNOWN_CAs[i].name;
+        }
+        *purl = apr_psprintf(p,
+            "The CA name '%s' is not known and it is not a URL either (%s). "
+            "Known CA names are: %s.",
+            name, err, apr_array_pstrcat(p, names, ' '));
+    }
+leave:
+    return rv;
+}