Adding upstream version 2.4.57.upstream/2.4.57

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

1 files changed, 198 insertions, 0 deletions

diff --git a/server/provider.c b/server/provider.c
new file mode 100644
index 0000000..f54fb5e
--- /dev/null
+++ b/server/provider.c
@@ -0,0 +1,198 @@
+/* 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 "apr_pools.h"
+#include "apr_hash.h"
+#include "apr_tables.h"
+#include "apr_strings.h"
+
+#include "ap_provider.h"
+
+static apr_hash_t *global_providers = NULL;
+static apr_hash_t *global_providers_names = NULL;
+
+
+static apr_status_t cleanup_global_providers(void *ctx)
+{
+    global_providers = NULL;
+    global_providers_names = NULL;
+    return APR_SUCCESS;
+}
+
+AP_DECLARE(apr_status_t) ap_register_provider(apr_pool_t *pool,
+                                              const char *provider_group,
+                                              const char *provider_name,
+                                              const char *provider_version,
+                                              const void *provider)
+{
+    apr_hash_t *provider_group_hash, *provider_version_hash;
+
+    if (global_providers == NULL) {
+        global_providers = apr_hash_make(pool);
+        global_providers_names = apr_hash_make(pool);
+        apr_pool_cleanup_register(pool, NULL, cleanup_global_providers,
+                                  apr_pool_cleanup_null);
+    }
+
+    /* First, deal with storing the provider away */
+    provider_group_hash = apr_hash_get(global_providers, provider_group,
+                                       APR_HASH_KEY_STRING);
+
+    if (!provider_group_hash) {
+        provider_group_hash = apr_hash_make(pool);
+        apr_hash_set(global_providers, provider_group, APR_HASH_KEY_STRING,
+                     provider_group_hash);
+    }
+
+    provider_version_hash = apr_hash_get(provider_group_hash, provider_name,
+                                         APR_HASH_KEY_STRING);
+
+    if (!provider_version_hash) {
+        provider_version_hash = apr_hash_make(pool);
+        apr_hash_set(provider_group_hash, provider_name, APR_HASH_KEY_STRING,
+                     provider_version_hash);
+    }
+
+    /* just set it. no biggy if it was there before. */
+    apr_hash_set(provider_version_hash, provider_version, APR_HASH_KEY_STRING,
+                 provider);
+
+    /* Now, tuck away the provider names in an easy-to-get format */
+    provider_group_hash = apr_hash_get(global_providers_names, provider_group,
+                                       APR_HASH_KEY_STRING);
+
+    if (!provider_group_hash) {
+        provider_group_hash = apr_hash_make(pool);
+        apr_hash_set(global_providers_names, provider_group, APR_HASH_KEY_STRING,
+                     provider_group_hash);
+    }
+
+    provider_version_hash = apr_hash_get(provider_group_hash, provider_version,
+                                         APR_HASH_KEY_STRING);
+
+    if (!provider_version_hash) {
+        provider_version_hash = apr_hash_make(pool);
+        apr_hash_set(provider_group_hash, provider_version, APR_HASH_KEY_STRING,
+                     provider_version_hash);
+    }
+
+    /* just set it. no biggy if it was there before. */
+    apr_hash_set(provider_version_hash, provider_name, APR_HASH_KEY_STRING,
+                 provider_name);
+
+    return APR_SUCCESS;
+}
+
+AP_DECLARE(void *) ap_lookup_provider(const char *provider_group,
+                                      const char *provider_name,
+                                      const char *provider_version)
+{
+    apr_hash_t *provider_group_hash, *provider_name_hash;
+
+    if (global_providers == NULL) {
+        return NULL;
+    }
+
+    provider_group_hash = apr_hash_get(global_providers, provider_group,
+                                       APR_HASH_KEY_STRING);
+
+    if (provider_group_hash == NULL) {
+        return NULL;
+    }
+
+    provider_name_hash = apr_hash_get(provider_group_hash, provider_name,
+                                      APR_HASH_KEY_STRING);
+
+    if (provider_name_hash == NULL) {
+        return NULL;
+    }
+
+    return apr_hash_get(provider_name_hash, provider_version,
+                        APR_HASH_KEY_STRING);
+}
+
+AP_DECLARE(apr_array_header_t *) ap_list_provider_names(apr_pool_t *pool,
+                                              const char *provider_group,
+                                              const char *provider_version)
+{
+    apr_array_header_t *ret = NULL;
+    ap_list_provider_names_t *entry;
+    apr_hash_t *provider_group_hash, *h;
+    apr_hash_index_t *hi;
+    char *val;
+
+    if (global_providers_names == NULL) {
+        goto out;
+    }
+
+    provider_group_hash = apr_hash_get(global_providers_names, provider_group,
+                                       APR_HASH_KEY_STRING);
+
+    if (provider_group_hash == NULL) {
+        goto out;
+    }
+
+    h = apr_hash_get(provider_group_hash, provider_version, APR_HASH_KEY_STRING);
+
+    if (h == NULL) {
+        goto out;
+    }
+
+    ret = apr_array_make(pool, apr_hash_count(h), sizeof(ap_list_provider_names_t));
+    for (hi = apr_hash_first(pool, h); hi; hi = apr_hash_next(hi)) {
+        apr_hash_this(hi, NULL, NULL, (void *)&val);
+        entry = apr_array_push(ret);
+        entry->provider_name = apr_pstrdup(pool, val);
+    }
+    
+out:
+    if (ret == NULL) {
+        ret = apr_array_make(pool, 1, sizeof(ap_list_provider_names_t));
+    }
+    return ret;
+}
+
+AP_DECLARE(apr_array_header_t *) ap_list_provider_groups(apr_pool_t *pool)
+{
+    apr_array_header_t *ret = apr_array_make(pool, 10, sizeof(ap_list_provider_groups_t));
+    ap_list_provider_groups_t *entry;
+    apr_hash_t *provider_group_hash;
+    apr_hash_index_t *groups_hi, *vers_hi;
+    char *group, *version;
+
+    if (global_providers_names == NULL)
+        return ret;
+
+    for (groups_hi = apr_hash_first(pool, global_providers_names);
+         groups_hi;
+         groups_hi = apr_hash_next(groups_hi))
+    {
+        apr_hash_this(groups_hi, (void *)&group, NULL, (void *)&provider_group_hash);
+        if (provider_group_hash == NULL)
+            continue;
+        for (vers_hi = apr_hash_first(pool, provider_group_hash);
+             vers_hi;
+             vers_hi = apr_hash_next(vers_hi))
+        {
+            apr_hash_this(vers_hi, (void *)&version, NULL, NULL);
+
+            entry = apr_array_push(ret);
+            entry->provider_group = group;
+            entry->provider_version = version;
+        }
+    }
+    return ret;
+}