diff options
Diffstat (limited to 'src/registry_internals.c')
| -rw-r--r-- | src/registry_internals.c | 322 |
1 files changed, 0 insertions, 322 deletions
diff --git a/src/registry_internals.c b/src/registry_internals.c deleted file mode 100644 index 44b0a1513..000000000 --- a/src/registry_internals.c +++ /dev/null @@ -1,322 +0,0 @@ -#include "registry_internals.h" - -struct registry registry; - -// ---------------------------------------------------------------------------- -// common functions - -// parse a GUID and re-generated to be always lower case -// this is used as a protection against the variations of GUIDs -int regenerate_guid(const char *guid, char *result) { - uuid_t uuid; - if(unlikely(uuid_parse(guid, uuid) == -1)) { - info("Registry: GUID '%s' is not a valid GUID.", guid); - return -1; - } - else { - uuid_unparse_lower(uuid, result); - -#ifdef NETDATA_INTERNAL_CHECKS - if(strcmp(guid, result) != 0) - info("GUID '%s' and re-generated GUID '%s' differ!", guid, result); -#endif /* NETDATA_INTERNAL_CHECKS */ - } - - return 0; -} - -// make sure the names of the machines / URLs do not contain any tabs -// (which are used as our separator in the database files) -// and are properly trimmed (before and after) -static inline char *registry_fix_machine_name(char *name, size_t *len) { - char *s = name?name:""; - - // skip leading spaces - while(*s && isspace(*s)) s++; - - // make sure all spaces are a SPACE - char *t = s; - while(*t) { - if(unlikely(isspace(*t))) - *t = ' '; - - t++; - } - - // remove trailing spaces - while(--t >= s) { - if(*t == ' ') - *t = '\0'; - else - break; - } - t++; - - if(likely(len)) - *len = (t - s); - - return s; -} - -static inline char *registry_fix_url(char *url, size_t *len) { - size_t l = 0; - char *s = registry_fix_machine_name(url, &l); - - // protection from too big URLs - if(l > registry.max_url_length) { - l = registry.max_url_length; - s[l] = '\0'; - } - - if(len) *len = l; - return s; -} - - -// ---------------------------------------------------------------------------- -// HELPERS - -// verify the person, the machine and the URL exist in our DB -REGISTRY_PERSON_URL *registry_verify_request(char *person_guid, char *machine_guid, char *url, REGISTRY_PERSON **pp, REGISTRY_MACHINE **mm) { - char pbuf[GUID_LEN + 1], mbuf[GUID_LEN + 1]; - - if(!person_guid || !*person_guid || !machine_guid || !*machine_guid || !url || !*url) { - info("Registry Request Verification: invalid request! person: '%s', machine '%s', url '%s'", person_guid?person_guid:"UNSET", machine_guid?machine_guid:"UNSET", url?url:"UNSET"); - return NULL; - } - - // normalize the url - url = registry_fix_url(url, NULL); - - // make sure the person GUID is valid - if(regenerate_guid(person_guid, pbuf) == -1) { - info("Registry Request Verification: invalid person GUID, person: '%s', machine '%s', url '%s'", person_guid, machine_guid, url); - return NULL; - } - person_guid = pbuf; - - // make sure the machine GUID is valid - if(regenerate_guid(machine_guid, mbuf) == -1) { - info("Registry Request Verification: invalid machine GUID, person: '%s', machine '%s', url '%s'", person_guid, machine_guid, url); - return NULL; - } - machine_guid = mbuf; - - // make sure the machine exists - REGISTRY_MACHINE *m = registry_machine_find(machine_guid); - if(!m) { - info("Registry Request Verification: machine not found, person: '%s', machine '%s', url '%s'", person_guid, machine_guid, url); - return NULL; - } - if(mm) *mm = m; - - // make sure the person exist - REGISTRY_PERSON *p = registry_person_find(person_guid); - if(!p) { - info("Registry Request Verification: person not found, person: '%s', machine '%s', url '%s'", person_guid, machine_guid, url); - return NULL; - } - if(pp) *pp = p; - - REGISTRY_PERSON_URL *pu = registry_person_url_index_find(p, url); - if(!pu) { - info("Registry Request Verification: URL not found for person, person: '%s', machine '%s', url '%s'", person_guid, machine_guid, url); - return NULL; - } - return pu; -} - - -// ---------------------------------------------------------------------------- -// REGISTRY REQUESTS - -REGISTRY_PERSON *registry_request_access(char *person_guid, char *machine_guid, char *url, char *name, time_t when) { - debug(D_REGISTRY, "registry_request_access('%s', '%s', '%s'): NEW REQUEST", (person_guid)?person_guid:"", machine_guid, url); - - REGISTRY_MACHINE *m = registry_machine_get(machine_guid, when); - if(!m) return NULL; - - // make sure the name is valid - size_t namelen; - name = registry_fix_machine_name(name, &namelen); - - size_t urllen; - url = registry_fix_url(url, &urllen); - - REGISTRY_PERSON *p = registry_person_get(person_guid, when); - - REGISTRY_URL *u = registry_url_get(url, urllen); - registry_person_link_to_url(p, m, u, name, namelen, when); - registry_machine_link_to_url(m, u, when); - - registry_log('A', p, m, u, name); - - registry.usages_count++; - - return p; -} - -REGISTRY_PERSON *registry_request_delete(char *person_guid, char *machine_guid, char *url, char *delete_url, time_t when) { - (void) when; - - REGISTRY_PERSON *p = NULL; - REGISTRY_MACHINE *m = NULL; - REGISTRY_PERSON_URL *pu = registry_verify_request(person_guid, machine_guid, url, &p, &m); - if(!pu || !p || !m) return NULL; - - // normalize the url - delete_url = registry_fix_url(delete_url, NULL); - - // make sure the user is not deleting the url it uses - if(!strcmp(delete_url, pu->url->url)) { - info("Registry Delete Request: delete URL is the one currently accessed, person: '%s', machine '%s', url '%s', delete url '%s'" - , p->guid, m->guid, pu->url->url, delete_url); - return NULL; - } - - REGISTRY_PERSON_URL *dpu = registry_person_url_index_find(p, delete_url); - if(!dpu) { - info("Registry Delete Request: URL not found for person: '%s', machine '%s', url '%s', delete url '%s'", p->guid - , m->guid, pu->url->url, delete_url); - return NULL; - } - - registry_log('D', p, m, pu->url, dpu->url->url); - registry_person_unlink_from_url(p, dpu); - - return p; -} - - -// a structure to pass to the dictionary_get_all() callback handler -struct machine_request_callback_data { - REGISTRY_MACHINE *find_this_machine; - REGISTRY_PERSON_URL *result; -}; - -// the callback function -// this will be run for every PERSON_URL of this PERSON -static int machine_request_callback(void *entry, void *data) { - REGISTRY_PERSON_URL *mypu = (REGISTRY_PERSON_URL *)entry; - struct machine_request_callback_data *myrdata = (struct machine_request_callback_data *)data; - - if(mypu->machine == myrdata->find_this_machine) { - myrdata->result = mypu; - return -1; // this will also stop the walk through - } - - return 0; // continue -} - -REGISTRY_MACHINE *registry_request_machine(char *person_guid, char *machine_guid, char *url, char *request_machine, time_t when) { - (void)when; - - char mbuf[GUID_LEN + 1]; - - REGISTRY_PERSON *p = NULL; - REGISTRY_MACHINE *m = NULL; - REGISTRY_PERSON_URL *pu = registry_verify_request(person_guid, machine_guid, url, &p, &m); - if(!pu || !p || !m) return NULL; - - // make sure the machine GUID is valid - if(regenerate_guid(request_machine, mbuf) == -1) { - info("Registry Machine URLs request: invalid machine GUID, person: '%s', machine '%s', url '%s', request machine '%s'", p->guid, m->guid, pu->url->url, request_machine); - return NULL; - } - request_machine = mbuf; - - // make sure the machine exists - m = registry_machine_find(request_machine); - if(!m) { - info("Registry Machine URLs request: machine not found, person: '%s', machine '%s', url '%s', request machine '%s'", p->guid, machine_guid, pu->url->url, request_machine); - return NULL; - } - - // Verify the user has in the past accessed this machine - // We will walk through the PERSON_URLs to find the machine - // linking to our machine - - // a structure to pass to the dictionary_get_all() callback handler - struct machine_request_callback_data rdata = { m, NULL }; - - // request a walk through on the dictionary - avl_traverse(&p->person_urls, machine_request_callback, &rdata); - - if(rdata.result) - return m; - - return NULL; -} - - -// ---------------------------------------------------------------------------- -// REGISTRY THIS MACHINE UNIQUE ID - -static inline int is_machine_guid_blacklisted(const char *guid) { - // these are machine GUIDs that have been included in distribution packages. - // we blacklist them here, so that the next version of netdata will generate - // new ones. - - if(!strcmp(guid, "8a795b0c-2311-11e6-8563-000c295076a6") - || !strcmp(guid, "4aed1458-1c3e-11e6-a53f-000c290fc8f5") - ) { - error("Blacklisted machine GUID '%s' found.", guid); - return 1; - } - - return 0; -} - -char *registry_get_this_machine_hostname(void) { - return registry.hostname; -} - -char *registry_get_this_machine_guid(void) { - static char guid[GUID_LEN + 1] = ""; - - if(likely(guid[0])) - return guid; - - // read it from disk - int fd = open(registry.machine_guid_filename, O_RDONLY); - if(fd != -1) { - char buf[GUID_LEN + 1]; - if(read(fd, buf, GUID_LEN) != GUID_LEN) - error("Failed to read machine GUID from '%s'", registry.machine_guid_filename); - else { - buf[GUID_LEN] = '\0'; - if(regenerate_guid(buf, guid) == -1) { - error("Failed to validate machine GUID '%s' from '%s'. Ignoring it - this might mean this netdata will appear as duplicate in the registry.", - buf, registry.machine_guid_filename); - - guid[0] = '\0'; - } - else if(is_machine_guid_blacklisted(guid)) - guid[0] = '\0'; - } - close(fd); - } - - // generate a new one? - if(!guid[0]) { - uuid_t uuid; - - uuid_generate_time(uuid); - uuid_unparse_lower(uuid, guid); - guid[GUID_LEN] = '\0'; - - // save it - fd = open(registry.machine_guid_filename, O_WRONLY|O_CREAT|O_TRUNC, 444); - if(fd == -1) - fatal("Cannot create unique machine id file '%s'. Please fix this.", registry.machine_guid_filename); - - if(write(fd, guid, GUID_LEN) != GUID_LEN) - fatal("Cannot write the unique machine id file '%s'. Please fix this.", registry.machine_guid_filename); - - close(fd); - } - - setenv("NETDATA_REGISTRY_UNIQUE_ID", guid, 1); - - return guid; -} |