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// SPDX-License-Identifier: GPL-3.0-or-later
#include "daemon/common.h"
#include "registry_internals.h"
int registry_init(void) {
char filename[FILENAME_MAX + 1];
// registry enabled?
if(web_server_mode != WEB_SERVER_MODE_NONE) {
registry.enabled = config_get_boolean(CONFIG_SECTION_REGISTRY, "enabled", 0);
}
else {
info("Registry is disabled - use the central netdata");
config_set_boolean(CONFIG_SECTION_REGISTRY, "enabled", 0);
registry.enabled = 0;
}
// pathnames
snprintfz(filename, FILENAME_MAX, "%s/registry", netdata_configured_varlib_dir);
registry.pathname = config_get(CONFIG_SECTION_REGISTRY, "registry db directory", filename);
if(mkdir(registry.pathname, 0770) == -1 && errno != EEXIST)
fatal("Cannot create directory '%s'.", registry.pathname);
// filenames
snprintfz(filename, FILENAME_MAX, "%s/netdata.public.unique.id", registry.pathname);
registry.machine_guid_filename = config_get(CONFIG_SECTION_REGISTRY, "netdata unique id file", filename);
snprintfz(filename, FILENAME_MAX, "%s/registry.db", registry.pathname);
registry.db_filename = config_get(CONFIG_SECTION_REGISTRY, "registry db file", filename);
snprintfz(filename, FILENAME_MAX, "%s/registry-log.db", registry.pathname);
registry.log_filename = config_get(CONFIG_SECTION_REGISTRY, "registry log file", filename);
// configuration options
registry.save_registry_every_entries = (unsigned long long)config_get_number(CONFIG_SECTION_REGISTRY, "registry save db every new entries", 1000000);
registry.persons_expiration = config_get_number(CONFIG_SECTION_REGISTRY, "registry expire idle persons days", 365) * 86400;
registry.registry_domain = config_get(CONFIG_SECTION_REGISTRY, "registry domain", "");
registry.registry_to_announce = config_get(CONFIG_SECTION_REGISTRY, "registry to announce", "https://registry.my-netdata.io");
registry.hostname = config_get(CONFIG_SECTION_REGISTRY, "registry hostname", netdata_configured_hostname);
registry.verify_cookies_redirects = config_get_boolean(CONFIG_SECTION_REGISTRY, "verify browser cookies support", 1);
registry.enable_cookies_samesite_secure = config_get_boolean(CONFIG_SECTION_REGISTRY, "enable cookies SameSite and Secure", 1);
registry_update_cloud_base_url();
setenv("NETDATA_REGISTRY_HOSTNAME", registry.hostname, 1);
setenv("NETDATA_REGISTRY_URL", registry.registry_to_announce, 1);
registry.max_url_length = (size_t)config_get_number(CONFIG_SECTION_REGISTRY, "max URL length", 1024);
if(registry.max_url_length < 10) {
registry.max_url_length = 10;
config_set_number(CONFIG_SECTION_REGISTRY, "max URL length", (long long)registry.max_url_length);
}
registry.max_name_length = (size_t)config_get_number(CONFIG_SECTION_REGISTRY, "max URL name length", 50);
if(registry.max_name_length < 10) {
registry.max_name_length = 10;
config_set_number(CONFIG_SECTION_REGISTRY, "max URL name length", (long long)registry.max_name_length);
}
// initialize entries counters
registry.persons_count = 0;
registry.machines_count = 0;
registry.usages_count = 0;
registry.urls_count = 0;
registry.persons_urls_count = 0;
registry.machines_urls_count = 0;
// initialize memory counters
registry.persons_memory = 0;
registry.machines_memory = 0;
registry.urls_memory = 0;
registry.persons_urls_memory = 0;
registry.machines_urls_memory = 0;
// initialize locks
netdata_mutex_init(®istry.lock);
// create dictionaries
registry.persons = dictionary_create(DICTIONARY_FLAGS);
registry.machines = dictionary_create(DICTIONARY_FLAGS);
avl_init(®istry.registry_urls_root_index, registry_url_compare);
// load the registry database
if(registry.enabled) {
registry_log_open();
registry_db_load();
registry_log_load();
if(unlikely(registry_db_should_be_saved()))
registry_db_save();
}
return 0;
}
void registry_free(void) {
if(!registry.enabled) return;
// we need to destroy the dictionaries ourselves
// since the dictionaries use memory we allocated
while(registry.persons->values_index.root) {
REGISTRY_PERSON *p = ((NAME_VALUE *)registry.persons->values_index.root)->value;
registry_person_del(p);
}
while(registry.machines->values_index.root) {
REGISTRY_MACHINE *m = ((NAME_VALUE *)registry.machines->values_index.root)->value;
// fprintf(stderr, "\nMACHINE: '%s', first: %u, last: %u, usages: %u\n", m->guid, m->first_t, m->last_t, m->usages);
while(m->machine_urls->values_index.root) {
REGISTRY_MACHINE_URL *mu = ((NAME_VALUE *)m->machine_urls->values_index.root)->value;
// fprintf(stderr, "\tURL: '%s', first: %u, last: %u, usages: %u, flags: 0x%02x\n", mu->url->url, mu->first_t, mu->last_t, mu->usages, mu->flags);
//debug(D_REGISTRY, "Registry: destroying persons dictionary from url '%s'", mu->url->url);
//dictionary_destroy(mu->persons);
debug(D_REGISTRY, "Registry: deleting url '%s' from person '%s'", mu->url->url, m->guid);
dictionary_del(m->machine_urls, mu->url->url);
debug(D_REGISTRY, "Registry: unlinking url '%s' from machine", mu->url->url);
registry_url_unlink(mu->url);
debug(D_REGISTRY, "Registry: freeing machine url");
freez(mu);
}
debug(D_REGISTRY, "Registry: deleting machine '%s' from machines registry", m->guid);
dictionary_del(registry.machines, m->guid);
debug(D_REGISTRY, "Registry: destroying URL dictionary of machine '%s'", m->guid);
dictionary_destroy(m->machine_urls);
debug(D_REGISTRY, "Registry: freeing machine '%s'", m->guid);
freez(m);
}
// and free the memory of remaining dictionary structures
debug(D_REGISTRY, "Registry: destroying persons dictionary");
dictionary_destroy(registry.persons);
debug(D_REGISTRY, "Registry: destroying machines dictionary");
dictionary_destroy(registry.machines);
}
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