void
noit_lua_check_clean_events(noit_lua_check_info_t *ci) {
if(ci->events == NULL) return;
noit_hash_destroy(ci->events, NULL, noit_event_dispose);
free(ci->events);
ci->events = NULL;
}
void
noit_console_closure_free(void *vncct) {
noit_console_closure_t ncct = (noit_console_closure_t) vncct;
noit_log_stream_t lf;
noitL(noit_debug, "ncct free(%p)\n", (void *)ncct);
if(ncct->el) el_end(ncct->el);
if(ncct->hist) {
history_end(ncct->hist);
noitL(noit_debug, "ncct free->hist(%p)\n", (void *)ncct->hist);
free(ncct->hist);
}
if(ncct->pty_master >= 0) close(ncct->pty_master);
if(ncct->pty_slave >= 0) close(ncct->pty_slave);
if(ncct->outbuf) free(ncct->outbuf);
if(ncct->telnet) noit_console_telnet_free(ncct->telnet);
noit_hash_destroy(&ncct->userdata, NULL, noit_console_userdata_free);
while(ncct->state_stack) {
noit_console_state_stack_t *tmp;
tmp = ncct->state_stack;
ncct->state_stack = tmp->last;
if(tmp->name) free(tmp->name);
free(tmp);
}
lf = noit_log_stream_find(ncct->feed_path);
noit_log_stream_remove(ncct->feed_path);
if(lf) {
noit_log_stream_free(lf);
}
free(ncct);
}
void
noit_poller_free_check(noit_check_t *checker) {
noit_module_t *mod;
if(checker->flags & NP_RUNNING) {
recycle_check(checker);
return;
}
mod = noit_module_lookup(checker->module);
if(mod->cleanup) mod->cleanup(mod, checker);
if(checker->fire_event) {
eventer_remove(checker->fire_event);
free(checker->fire_event->closure);
eventer_free(checker->fire_event);
checker->fire_event = NULL;
}
if(checker->closure) free(checker->closure);
if(checker->target) free(checker->target);
if(checker->module) free(checker->module);
if(checker->name) free(checker->name);
if(checker->config) {
noit_hash_destroy(checker->config, free, free);
free(checker->config);
checker->config = NULL;
}
free(checker);
}
static int
stratcon_datastore_journal_sync(eventer_t e, int mask, void *closure,
struct timeval *now) {
noit_hash_iter iter = NOIT_HASH_ITER_ZERO;
const char *k;
int klen;
void *vij;
interim_journal_t *ij;
syncset_t *syncset = closure;
if((mask & EVENTER_ASYNCH) == EVENTER_ASYNCH) {
if(syncset->completion) {
eventer_add(syncset->completion);
eventer_trigger(syncset->completion, EVENTER_READ | EVENTER_WRITE);
}
free(syncset);
return 0;
}
if(!((mask & EVENTER_ASYNCH_WORK) == EVENTER_ASYNCH_WORK)) return 0;
noitL(ds_deb, "Syncing journal sets...\n");
if (syncset->ws) {
while(noit_hash_next(syncset->ws, &iter, &k, &klen, &vij)) {
char tmppath[PATH_MAX], id_str[32];
int suffix_idx;
ij = vij;
noitL(ds_deb, "Syncing journal set [%s,%s,%s]\n",
ij->remote_str, ij->remote_cn, ij->fqdn);
strlcpy(tmppath, ij->filename, sizeof(tmppath));
suffix_idx = strlen(ij->filename) - 4; /* . t m p */
ij->filename[suffix_idx] = '\0';
if(rename(tmppath, ij->filename) != 0) {
if(errno == EEXIST) {
unlink(ij->filename);
if(rename(tmppath, ij->filename) != 0) goto rename_failed;
}
else {
rename_failed:
noitL(noit_error, "rename failed(%s): (%s->%s)\n", strerror(errno),
tmppath, ij->filename);
exit(-1);
}
}
fsync(ij->fd);
close(ij->fd);
ij->fd = -1;
snprintf(id_str, sizeof(id_str), "%d", ij->storagenode_id);
stratcon_ingest(ij->filename, ij->remote_str,
ij->remote_cn, id_str);
}
noit_hash_destroy(syncset->ws, free, interim_journal_free);
free(syncset->ws);
}
else {
noitL(noit_error, "attempted to sync non-existing working set\n");
}
return 0;
}
void
noit_check_set_stats(struct _noit_module *module,
noit_check_t *check, stats_t *newstate) {
int report_change = 0;
dep_list_t *dep;
if(check->stats.previous.status)
free(check->stats.previous.status);
noit_hash_destroy(&check->stats.previous.metrics, NULL, __free_metric);
memcpy(&check->stats.previous, &check->stats.current, sizeof(stats_t));
memcpy(&check->stats.current, newstate, sizeof(stats_t));
if(check->stats.current.status)
check->stats.current.status = strdup(check->stats.current.status);
/* check for state changes */
if(check->stats.current.available != NP_UNKNOWN &&
check->stats.previous.available != NP_UNKNOWN &&
check->stats.current.available != check->stats.previous.available)
report_change = 1;
if(check->stats.current.state != NP_UNKNOWN &&
check->stats.previous.state != NP_UNKNOWN &&
check->stats.current.state != check->stats.previous.state)
report_change = 1;
noitL(noit_debug, "%s`%s <- [%s]\n", check->target, check->name,
check->stats.current.status);
if(report_change) {
noitL(noit_debug, "%s`%s -> [%s:%s]\n",
check->target, check->name,
noit_check_available_string(check->stats.current.available),
noit_check_state_string(check->stats.current.state));
}
/* Write out our status */
noit_check_log_status(check);
/* Write out all metrics */
noit_check_log_metrics(check);
/* count the check as complete */
check_completion_count++;
for(dep = check->causal_checks; dep; dep = dep->next) {
noit_module_t *mod;
mod = noit_module_lookup(dep->check->module);
assert(mod);
noitL(noit_debug, "Firing %s`%s in response to %s`%s\n",
dep->check->target, dep->check->name,
check->target, check->name);
if((dep->check->flags & NP_DISABLED) == 0)
if(mod->initiate_check)
mod->initiate_check(mod, dep->check, 1, check);
}
}
static int
noit_lua_module_config(noit_module_t *mod,
noit_hash_table *options) {
LMC_DECL(L, mod);
SETUP_CALL(L, "config", return 0);
noit_lua_setup_module(L, mod);
noit_lua_hash_to_table(L, options);
noit_hash_destroy(options, free, free);
free(options);
lua_pcall(L, 2, 1, 0);
/* If rv == 0, the caller will free options. We've
* already freed options, that would be bad. fudge -> 1 */
RETURN_INT(L, "config", { rv = (rv == 0) ? 1 : rv; });
static int noit_statsd_config(noit_module_t *self, noit_hash_table *options) {
statsd_mod_config_t *conf;
conf = noit_module_get_userdata(self);
if(conf) {
if(conf->options) {
noit_hash_destroy(conf->options, free, free);
free(conf->options);
}
}
else
conf = calloc(1, sizeof(*conf));
conf->options = options;
noit_module_set_userdata(self, conf);
return 1;
}
static int external_config(noit_module_t *self, noit_hash_table *options) {
external_data_t *data;
data = noit_module_get_userdata(self);
if(data) {
if(data->options) {
noit_hash_destroy(data->options, free, free);
free(data->options);
}
}
else
data = calloc(1, sizeof(*data));
data->options = options;
if(!data->options) data->options = calloc(1, sizeof(*data->options));
noit_module_set_userdata(self, data);
return 1;
}
static
int configure_eventer() {
int rv = 0;
noit_hash_table *table;
table = noit_conf_get_hash(NULL, "/" APPNAME "/eventer/config");
if(table) {
noit_hash_iter iter = NOIT_HASH_ITER_ZERO;
const char *key, *value;
int klen;
while(noit_hash_next_str(table, &iter, &key, &klen, &value)) {
int subrv;
if((subrv = eventer_propset(key, value)) != 0)
rv = subrv;
}
noit_hash_destroy(table, free, free);
free(table);
}
return rv;
}
void
noit_log_stream_free(noit_log_stream_t ls) {
if(ls) {
struct _noit_log_stream_outlet_list *node;
if(ls->name) free(ls->name);
if(ls->path) free(ls->path);
while(ls->outlets) {
node = ls->outlets->next;
free(ls->outlets);
ls->outlets = node;
}
if(ls->config) {
noit_hash_destroy(ls->config, free, free);
free(ls->config);
}
if(ls->lock) {
pthread_rwlock_destroy(ls->lock);
free(ls->lock);
}
free(ls);
}
}
static int
configure_eventer(const char *appname) {
int rv = 0;
noit_hash_table *table;
char appscratch[1024];
snprintf(appscratch, sizeof(appscratch), "/%s/eventer/config", appname);
table = noit_conf_get_hash(NULL, appscratch);
if(table) {
noit_hash_iter iter = NOIT_HASH_ITER_ZERO;
const char *key, *value;
int klen;
while(noit_hash_next_str(table, &iter, &key, &klen, &value)) {
int subrv;
if((subrv = eventer_propset(key, value)) != 0)
rv = subrv;
}
noit_hash_destroy(table, free, free);
free(table);
}
return rv;
}
int
stratcon_line_to_javascript(noit_http_session_ctx *ctx, char *buff,
u_int32_t inc_id) {
char buffer[1024];
char *scp, *ecp, *token;
int len;
void *vcb;
const char *v, *cb = NULL;
noit_hash_table json = NOIT_HASH_EMPTY;
char s_inc_id[42];
snprintf(s_inc_id, sizeof(s_inc_id), "script-%08x", inc_id);
if(noit_hash_retrieve(&ctx->req.querystring, "cb", strlen("cb"), &vcb))
cb = vcb;
for(v = cb; v && *v; v++)
if(!((*v >= '0' && *v <= '9') ||
(*v >= 'a' && *v <= 'z') ||
(*v >= 'A' && *v <= 'Z') ||
(*v == '_') || (*v == '.'))) {
cb = NULL;
break;
}
if(!cb) cb = "window.parent.plot_iframe_data";
#define BAIL_HTTP_WRITE do { \
noit_hash_destroy(&json, NULL, free); \
noitL(noit_error, "javascript emit failed: %s:%s:%d\n", \
__FILE__, __FUNCTION__, __LINE__); \
return -1; \
} while(0)
#define PROCESS_NEXT_FIELD(t,l) do { \
if(!*scp) goto bad_row; \
ecp = strchr(scp, '\t'); \
if(!ecp) goto bad_row; \
t = scp; \
l = (ecp-scp); \
scp = ecp + 1; \
} while(0)
#define PROCESS_LAST_FIELD(t,l) do { \
if(!*scp) ecp = scp; \
else { \
ecp = scp + strlen(scp); /* Puts us at the '\0' */ \
if(*(ecp-1) == '\n') ecp--; /* We back up on letter if we ended in \n */ \
} \
t = scp; \
l = (ecp-scp); \
} while(0)
scp = buff;
PROCESS_NEXT_FIELD(token,len); /* Skip the leader */
if(buff[0] == 'M') {
noit_hash_iter iter = NOIT_HASH_ITER_ZERO;
const char *key;
int klen, i=0;
void *vval;
#define ra_write(a,b) if(noit_http_response_append(ctx, a, b) == noit_false) BAIL_HTTP_WRITE
snprintf(buffer, sizeof(buffer), "<script id=\"%s\">%s({", s_inc_id, cb);
ra_write(buffer, strlen(buffer));
while(noit_hash_next(&ctx->req.querystring, &iter, &key, &klen, &vval)) {
if(!strcmp(key, "cb")) continue;
noit_hash_store(&json, key, klen, strdup(vval ?(char *)vval : "true"));
}
/* Time */
noit_hash_store(&json, "script_id", 9, strdup(s_inc_id));
noit_hash_store(&json, "type", 4, strdup("M"));
PROCESS_NEXT_FIELD(token,len);
noit_hash_store(&json, "time", 4, noit__strndup(token, len));
/* UUID */
PROCESS_NEXT_FIELD(token,len);
noit_hash_store(&json, "id", 2, noit__strndup(token, len));
/* name */
PROCESS_NEXT_FIELD(token,len);
noit_hash_store(&json, "metric_name", 11, noit__strndup(token, len));
/* type */
PROCESS_NEXT_FIELD(token,len);
noit_hash_store(&json, "metric_type", 11, noit__strndup(token, len));
/* value */
PROCESS_LAST_FIELD(token,len); /* value */
noit_hash_store(&json, "value", 5, noit__strndup(token, len));
memset(&iter, 0, sizeof(iter));
while(noit_hash_next(&json, &iter, &key, &klen, &vval)) {
char *val = (char *)vval;
if(i++) ra_write(",", 1);
ra_write("'", 1);
ra_write(key, klen);
ra_write("':\"", 3);
while(*val) {
if(*val == '\"' || *val == '\\') {
ra_write((char *)"\\", 1);
}
if(isprint(*val)) {
ra_write((char *)val, 1);
}
else {
char od[5];
snprintf(od, sizeof(od), "\\%03o", *((unsigned char *)val));
ra_write(od, strlen(od));
}
val++;
}
ra_write("\"", 1);
}
snprintf(buffer, sizeof(buffer), "});</script>\n");
ra_write(buffer, strlen(buffer));
if(noit_http_response_flush(ctx, noit_false) == noit_false) BAIL_HTTP_WRITE;
}
noit_hash_destroy(&json, NULL, free);
return 0;
bad_row:
BAIL_HTTP_WRITE;
}
static int external_invoke(noit_module_t *self, noit_check_t *check,
noit_check_t *cause) {
struct timeval when, p_int;
external_closure_t *ecl;
struct check_info *ci = (struct check_info *)check->closure;
eventer_t newe;
external_data_t *data;
noit_hash_table check_attrs_hash = NOIT_HASH_EMPTY;
int i, klen;
noit_hash_iter iter = NOIT_HASH_ITER_ZERO;
const char *name, *value;
char interp_fmt[4096], interp_buff[4096];
data = noit_module_get_userdata(self);
check->flags |= NP_RUNNING;
noitL(data->nldeb, "external_invoke(%p,%s)\n",
self, check->target);
/* remove a timeout if we still have one -- we should unless someone
* has set a lower timeout than the period.
*/
if(ci->timeout_event) {
eventer_remove(ci->timeout_event);
free(ci->timeout_event->closure);
eventer_free(ci->timeout_event);
ci->timeout_event = NULL;
}
check_info_clean(ci);
gettimeofday(&when, NULL);
memcpy(&check->last_fire_time, &when, sizeof(when));
/* Setup all our check bits */
ci->check_no = noit_atomic_inc64(&data->check_no_seq);
ci->check = check;
/* We might want to extract metrics */
if(noit_hash_retr_str(check->config,
"output_extract", strlen("output_extract"),
&value) != 0) {
const char *error;
int erroffset;
ci->matcher = pcre_compile(value, 0, &error, &erroffset, NULL);
if(!ci->matcher) {
noitL(data->nlerr, "external pcre /%s/ failed @ %d: %s\n",
value, erroffset, error);
}
}
noit_check_make_attrs(check, &check_attrs_hash);
/* Count the args */
i = 1;
while(1) {
char argname[10];
snprintf(argname, sizeof(argname), "arg%d", i);
if(noit_hash_retr_str(check->config, argname, strlen(argname),
&value) == 0) break;
i++;
}
ci->argcnt = i + 1; /* path, arg0, (i-1 more args) */
ci->arglens = calloc(ci->argcnt, sizeof(*ci->arglens));
ci->args = calloc(ci->argcnt, sizeof(*ci->args));
/* Make the command */
if(noit_hash_retr_str(check->config, "command", strlen("command"),
&value) == 0) {
value = "/bin/true";
}
ci->args[0] = strdup(value);
ci->arglens[0] = strlen(ci->args[0]) + 1;
i = 0;
while(1) {
char argname[10];
snprintf(argname, sizeof(argname), "arg%d", i);
if(noit_hash_retr_str(check->config, argname, strlen(argname),
&value) == 0) {
if(i == 0) {
/* if we don't have arg0, make it last element of path */
char *cp = ci->args[0] + strlen(ci->args[0]);
while(cp > ci->args[0] && *(cp-1) != '/') cp--;
value = cp;
}
else break; /* if we don't have argn, we're done */
}
noit_check_interpolate(interp_buff, sizeof(interp_buff), value,
&check_attrs_hash, check->config);
ci->args[i+1] = strdup(interp_buff);
ci->arglens[i+1] = strlen(ci->args[i+1]) + 1;
i++;
}
/* Make the environment */
memset(&iter, 0, sizeof(iter));
ci->envcnt = 0;
while(noit_hash_next_str(check->config, &iter, &name, &klen, &value))
if(!strncasecmp(name, "env_", 4))
ci->envcnt++;
memset(&iter, 0, sizeof(iter));
ci->envlens = calloc(ci->envcnt, sizeof(*ci->envlens));
ci->envs = calloc(ci->envcnt, sizeof(*ci->envs));
ci->envcnt = 0;
while(noit_hash_next_str(check->config, &iter, &name, &klen, &value))
if(!strncasecmp(name, "env_", 4)) {
snprintf(interp_fmt, sizeof(interp_fmt), "%s=%s", name+4, value);
noit_check_interpolate(interp_buff, sizeof(interp_buff), interp_fmt,
&check_attrs_hash, check->config);
ci->envs[ci->envcnt] = strdup(interp_buff);
ci->envlens[ci->envcnt] = strlen(ci->envs[ci->envcnt]) + 1;
ci->envcnt++;
}
noit_hash_destroy(&check_attrs_hash, NULL, NULL);
noit_hash_store(&data->external_checks,
(const char *)&ci->check_no, sizeof(ci->check_no),
ci);
/* Setup a timeout */
newe = eventer_alloc();
newe->mask = EVENTER_TIMER;
gettimeofday(&when, NULL);
p_int.tv_sec = check->timeout / 1000;
p_int.tv_usec = (check->timeout % 1000) * 1000;
add_timeval(when, p_int, &newe->whence);
ecl = calloc(1, sizeof(*ecl));
ecl->self = self;
ecl->check = check;
newe->closure = ecl;
newe->callback = external_timeout;
eventer_add(newe);
ci->timeout_event = newe;
/* Setup push */
newe = eventer_alloc();
newe->mask = EVENTER_ASYNCH;
add_timeval(when, p_int, &newe->whence);
ecl = calloc(1, sizeof(*ecl));
ecl->self = self;
ecl->check = check;
newe->closure = ecl;
newe->callback = external_enqueue;
eventer_add(newe);
return 0;
}
void
noit_listener_reconfig(const char *toplevel) {
int i, cnt = 0;
noit_conf_section_t *listener_configs;
char path[256];
snprintf(path, sizeof(path), "/%s/listeners//listener",
toplevel ? toplevel : "*");
listener_configs = noit_conf_get_sections(NULL, path, &cnt);
noitL(noit_debug, "Found %d %s stanzas\n", cnt, path);
for(i=0; i<cnt; i++) {
char address[256];
char type[256];
unsigned short port;
int portint;
int backlog;
eventer_func_t f;
noit_boolean ssl;
noit_hash_table *sslconfig, *config;
if(!noit_conf_get_stringbuf(listener_configs[i],
"ancestor-or-self::node()/@type",
type, sizeof(type))) {
noitL(noit_error, "No type specified in listener stanza %d\n", i+1);
continue;
}
f = eventer_callback_for_name(type);
if(!f) {
noitL(noit_error,
"Cannot find handler for listener type: '%s'\n", type);
continue;
}
if(!noit_conf_get_stringbuf(listener_configs[i],
"ancestor-or-self::node()/@address",
address, sizeof(address))) {
address[0] = '*';
address[1] = '\0';
}
if(!noit_conf_get_int(listener_configs[i],
"ancestor-or-self::node()/@port", &portint))
portint = 0;
port = (unsigned short) portint;
if(address[0] != '/' && (portint == 0 || (port != portint))) {
/* UNIX sockets don't require a port (they'll ignore it if specified */
noitL(noit_error,
"Invalid port [%d] specified in stanza %d\n", port, i+1);
continue;
}
if(noit_listener_should_skip(address, port)) {
if(port)
noitL(noit_error, "Operator forced skipping listener %s:%d\n", address, port);
else
noitL(noit_error, "Operator forced skipping listener %s\n", address);
continue;
}
if(!noit_conf_get_int(listener_configs[i],
"ancestor-or-self::node()/@backlog", &backlog))
backlog = 5;
if(!noit_conf_get_boolean(listener_configs[i],
"ancestor-or-self::node()/@ssl", &ssl))
ssl = noit_false;
sslconfig = ssl ?
noit_conf_get_hash(listener_configs[i], "sslconfig") :
NULL;
config = noit_conf_get_hash(listener_configs[i], "config");
if(noit_listener(address, port, SOCK_STREAM, backlog,
sslconfig, config, f, NULL) != 0) {
noit_hash_destroy(config,free,free);
free(config);
}
if(sslconfig) {
/* A copy of this is made within noit_listener */
noit_hash_destroy(sslconfig,free,free);
free(sslconfig);
}
}
free(listener_configs);
}
noit_check_t *
noit_fire_check(xmlNodePtr attr, xmlNodePtr config, const char **error) {
char *target = NULL, *name = NULL, *module = NULL, *filterset = NULL;
int timeout = 0;
noit_module_t *m;
noit_check_t *c = NULL;
xmlNodePtr a, co;
noit_hash_table *conf_hash = NULL;
for(a = attr->children; a; a = a->next) {
if(!strcmp((char *)a->name, "target"))
target = (char *)xmlNodeGetContent(a);
else if(!strcmp((char *)a->name, "name"))
name = (char *)xmlNodeGetContent(a);
else if(!strcmp((char *)a->name, "module"))
module = (char *)xmlNodeGetContent(a);
else if(!strcmp((char *)a->name, "filterset"))
filterset = (char *)xmlNodeGetContent(a);
else if(!strcmp((char *)a->name, "timeout")) {
char *timeout_str = (char *)xmlNodeGetContent(a);
timeout = atoi(timeout_str);
free(timeout_str);
}
}
m = noit_module_lookup(module);
if(!m) {
*error = "cannot find requested module";
goto error;
}
conf_hash = calloc(1, sizeof(*conf_hash));
for(co = config->children; co; co = co->next) {
char *name, *val;
xmlChar *tmp_val;
name = strdup((char *)co->name);
tmp_val = xmlNodeGetContent(co);
val = strdup(tmp_val ? (char *)tmp_val : "");
noit_hash_replace(conf_hash, name, strlen(name), val, free, free);
xmlFree(tmp_val);
}
if(!m->initiate_check) {
*error = "that module cannot run checks";
goto error;
}
c = calloc(1, sizeof(*c));
noit_check_update(c, target, name, filterset,
conf_hash, 0, timeout, NULL, NP_TRANSIENT);
c->module = strdup(module);
uuid_generate(c->checkid);
c->flags |= NP_DISABLED; /* this is hack to know we haven't run it yet */
if(NOIT_CHECK_SHOULD_RESOLVE(c))
noit_check_resolve(c);
error:
if(conf_hash) {
noit_hash_destroy(conf_hash, free, free);
free(conf_hash);
}
if(target) xmlFree(target);
if(name) xmlFree(name);
if(module) xmlFree(module);
if(filterset) xmlFree(filterset);
return c;
}
static int
noit_console_config_show(noit_console_closure_t ncct,
int argc, char **argv,
noit_console_state_t *state, void *closure) {
noit_hash_iter iter = NOIT_HASH_ITER_ZERO;
const char *k;
int klen;
void *data;
int i, cnt, titled = 0, cliplen = 0;
const char *path = "", *basepath = NULL;
char xpath[1024];
noit_conf_t_userdata_t *info = NULL;
noit_hash_table *config;
xmlXPathObjectPtr pobj = NULL;
xmlXPathContextPtr xpath_ctxt = NULL, current_ctxt;
xmlDocPtr master_config = NULL;
xmlNodePtr node = NULL;
noit_conf_xml_xpath(&master_config, &xpath_ctxt);
if(argc > 1) {
nc_printf(ncct, "too many arguments\n");
return -1;
}
info = noit_console_userdata_get(ncct, NOIT_CONF_T_USERDATA);
if(info && info->path) path = basepath = info->path;
if(!info && argc == 0) {
nc_printf(ncct, "argument required when not in configuration mode\n");
return -1;
}
if(argc == 1) path = argv[0];
if(!basepath) basepath = path;
/* { / } is a special case */
if(!strcmp(basepath, "/")) basepath = "";
if(!strcmp(path, "/")) path = "";
if(!master_config) {
nc_printf(ncct, "no config\n");
return -1;
}
/* { / } is the only path that will end with a /
* in XPath { / / * } means something _entirely different than { / * }
* Ever notice how it is hard to describe xpath in C comments?
*/
/* We don't want to show the root node */
cliplen = strlen("/noit/");
/* If we are in configuration mode
* and we are without an argument or the argument is absolute,
* clip the current path off */
if(info && (argc == 0 || path[0] != '/')) cliplen += strlen(basepath);
if(!path[0] || path[0] == '/') /* base only, or absolute path requested */
snprintf(xpath, sizeof(xpath), "/noit%s/@*", path);
else
snprintf(xpath, sizeof(xpath), "/noit%s/%s/@*", basepath, path);
current_ctxt = xpath_ctxt;
pobj = xmlXPathEval((xmlChar *)xpath, current_ctxt);
if(!pobj || pobj->type != XPATH_NODESET) {
nc_printf(ncct, "no such object\n");
goto bad;
}
cnt = xmlXPathNodeSetGetLength(pobj->nodesetval);
titled = 0;
for(i=0; i<cnt; i++) {
node = (noit_conf_section_t)xmlXPathNodeSetItem(pobj->nodesetval, i);
if(!strcmp((char *)node->name, "check")) continue;
if(node->children && node->children == xmlGetLastChild(node) &&
xmlNodeIsText(node->children)) {
if(!titled++) nc_printf(ncct, "== Section Settings ==\n");
nc_printf(ncct, "%s: %s\n", xmlGetNodePath(node) + cliplen,
xmlXPathCastNodeToString(node->children));
}
}
xmlXPathFreeObject(pobj);
/* Print out all the config settings */
if(!path[0] || path[0] == '/') /* base only, or absolute path requested */
snprintf(xpath, sizeof(xpath), "/noit%s", path);
else
snprintf(xpath, sizeof(xpath), "/noit%s/%s", basepath, path);
pobj = xmlXPathEval((xmlChar *)xpath, current_ctxt);
if(!pobj || pobj->type != XPATH_NODESET) {
nc_printf(ncct, "no such object\n");
goto bad;
}
cnt = xmlXPathNodeSetGetLength(pobj->nodesetval);
if(cnt > 0) {
node = (noit_conf_section_t)xmlXPathNodeSetItem(pobj->nodesetval, 0);
titled = 0;
config = noit_conf_get_hash(node, "config");
while(noit_hash_next(config, &iter, &k, &klen, &data)) {
if(!titled++) nc_printf(ncct, "== Section [Aggregated] Config ==\n");
nc_printf(ncct, "config::%s: %s\n", k, (const char *)data);
}
noit_hash_destroy(config, free, free);
free(config);
}
xmlXPathFreeObject(pobj);
/* _shorten string_ turning last { / @ * } to { / * } */
if(!path[0] || path[0] == '/') /* base only, or absolute path requested */
snprintf(xpath, sizeof(xpath), "/noit%s/*", path);
else
snprintf(xpath, sizeof(xpath), "/noit%s/%s/*", basepath, path);
pobj = xmlXPathEval((xmlChar *)xpath, current_ctxt);
if(!pobj || pobj->type != XPATH_NODESET) {
nc_printf(ncct, "no such object\n");
goto bad;
}
cnt = xmlXPathNodeSetGetLength(pobj->nodesetval);
titled = 0;
for(i=0; i<cnt; i++) {
node = (noit_conf_section_t)xmlXPathNodeSetItem(pobj->nodesetval, i);
if(!strcmp((char *)node->name, "check")) continue;
if(!strcmp((char *)node->name, "filterset")) continue;
if(!strcmp((char *)xmlGetNodePath(node) + cliplen, "config")) continue;
if(!(node->children && node->children == xmlGetLastChild(node) &&
xmlNodeIsText(node->children))) {
if(!titled++) nc_printf(ncct, "== Subsections ==\n");
nc_printf(ncct, "%s\n", xmlGetNodePath(node) + cliplen);
}
}
titled = 0;
for(i=0; i<cnt; i++) {
node = (noit_conf_section_t)xmlXPathNodeSetItem(pobj->nodesetval, i);
if(!strcmp((char *)node->name, "filterset")) {
xmlAttr *attr;
char *filter_name = NULL;
for(attr=node->properties; attr; attr = attr->next) {
if(!strcmp((char *)attr->name, "name"))
filter_name = (char *)xmlXPathCastNodeToString(attr->children);
}
if(filter_name) {
nc_printf(ncct, "filterset[@name=\"%s\"]\n", filter_name);
xmlFree(filter_name);
}
else nc_printf(ncct, "fitlerset\n");
}
else if(!strcmp((char *)node->name, "check")) {
int busted = 1;
xmlAttr *attr;
char *uuid_str = "undefined";
if(!titled++) nc_printf(ncct, "== Checks ==\n");
for(attr=node->properties; attr; attr = attr->next) {
if(!strcmp((char *)attr->name, "uuid"))
uuid_str = (char *)xmlXPathCastNodeToString(attr->children);
}
if(uuid_str) {
uuid_t checkid;
nc_printf(ncct, "check[@uuid=\"%s\"] ", uuid_str);
if(uuid_parse(uuid_str, checkid) == 0) {
noit_check_t *check;
check = noit_poller_lookup(checkid);
if(check) {
busted = 0;
nc_printf(ncct, "%s`%s`%s", check->target, check->module, check->name);
}
}
}
else
nc_printf(ncct, "%s ", xmlGetNodePath(node) + cliplen);
if(busted) nc_printf(ncct, "[check not in running system]");
nc_write(ncct, "\n", 1);
}
}
xmlXPathFreeObject(pobj);
return 0;
bad:
if(pobj) xmlXPathFreeObject(pobj);
return -1;
}
static int
noit_console_show_check(noit_console_closure_t ncct,
int argc, char **argv,
noit_console_state_t *state, void *closure) {
int i, cnt;
noit_conf_t_userdata_t *info;
char xpath[1024];
xmlXPathObjectPtr pobj = NULL;
xmlXPathContextPtr xpath_ctxt = NULL;
noit_conf_xml_xpath(NULL, &xpath_ctxt);
if(argc > 1) {
nc_printf(ncct, "requires zero or one arguments\n");
return -1;
}
info = noit_console_userdata_get(ncct, NOIT_CONF_T_USERDATA);
/* We many not be in conf-t mode -- that's fine */
if(noit_console_mkcheck_xpath(xpath, sizeof(xpath), info,
argc ? argv[0] : NULL)) {
nc_printf(ncct, "could not find check '%s'\n", argv[0]);
return -1;
}
pobj = xmlXPathEval((xmlChar *)xpath, xpath_ctxt);
if(!pobj || pobj->type != XPATH_NODESET ||
xmlXPathNodeSetIsEmpty(pobj->nodesetval)) {
nc_printf(ncct, "no checks found\n");
goto out;
}
cnt = xmlXPathNodeSetGetLength(pobj->nodesetval);
if(info && cnt != 1) {
nc_printf(ncct, "Ambiguous check specified\n");
goto out;
}
for(i=0; i<cnt; i++) {
noit_hash_iter iter = NOIT_HASH_ITER_ZERO;
const char *k;
int klen;
void *data;
uuid_t checkid;
noit_check_t *check;
noit_hash_table *config;
xmlNodePtr node, anode, mnode = NULL;
char *uuid_conf;
char *module, *value;
node = (noit_conf_section_t)xmlXPathNodeSetItem(pobj->nodesetval, i);
uuid_conf = (char *)xmlGetProp(node, (xmlChar *)"uuid");
if(!uuid_conf || uuid_parse(uuid_conf, checkid)) {
nc_printf(ncct, "%s has invalid or missing UUID!\n",
(char *)xmlGetNodePath(node) + strlen("/noit"));
continue;
}
nc_printf(ncct, "==== %s ====\n", uuid_conf);
#define MYATTR(a,n,b) _noit_conf_get_string(node, &(n), "@" #a, &(b))
#define INHERIT(a,n,b) \
_noit_conf_get_string(node, &(n), "ancestor-or-self::node()/@" #a, &(b))
#define SHOW_ATTR(a) do { \
anode = NULL; \
value = NULL; \
INHERIT(a, anode, value); \
nc_attr_show(ncct, #a, node, anode, value); \
} while(0)
if(!INHERIT(module, mnode, module)) module = NULL;
if(MYATTR(name, anode, value))
nc_printf(ncct, " name: %s\n", value);
else
nc_printf(ncct, " name: %s [from module]\n", module ? module : "[undef]");
nc_attr_show(ncct, "module", node, mnode, module);
SHOW_ATTR(target);
SHOW_ATTR(period);
SHOW_ATTR(timeout);
SHOW_ATTR(oncheck);
SHOW_ATTR(filterset);
SHOW_ATTR(disable);
/* Print out all the config settings */
config = noit_conf_get_hash(node, "config");
while(noit_hash_next(config, &iter, &k, &klen, &data)) {
nc_printf(ncct, " config::%s: %s\n", k, (const char *)data);
}
noit_hash_destroy(config, free, free);
free(config);
check = noit_poller_lookup(checkid);
if(!check) {
nc_printf(ncct, " ERROR: not in running system\n");
}
else {
int idx = 0;
nc_printf(ncct, " currently: ");
if(NOIT_CHECK_RUNNING(check)) nc_printf(ncct, "%srunning", idx++?",":"");
if(NOIT_CHECK_KILLED(check)) nc_printf(ncct, "%skilled", idx++?",":"");
if(!NOIT_CHECK_CONFIGURED(check)) nc_printf(ncct, "%sunconfig", idx++?",":"");
if(NOIT_CHECK_DISABLED(check)) nc_printf(ncct, "%sdisabled", idx++?",":"");
if(!idx) nc_printf(ncct, "idle");
nc_write(ncct, "\n", 1);
if(check->stats.current.whence.tv_sec == 0) {
nc_printf(ncct, " last run: never\n");
}
else {
stats_t *c = &check->stats.current;
struct timeval now, diff;
gettimeofday(&now, NULL);
sub_timeval(now, c->whence, &diff);
nc_printf(ncct, " last run: %0.3f seconds ago\n",
diff.tv_sec + (diff.tv_usec / 1000000.0));
nc_printf(ncct, " availability/state: %s/%s\n",
noit_check_available_string(c->available),
noit_check_state_string(c->state));
nc_printf(ncct, " status: %s\n", c->status ? c->status : "[[null]]");
nc_printf(ncct, " metrics:\n");
memset(&iter, 0, sizeof(iter));
while(noit_hash_next(&c->metrics, &iter, &k, &klen, &data)) {
char buff[256];
noit_boolean filtered;
noit_stats_snprint_metric(buff, sizeof(buff), (metric_t *)data);
filtered = !noit_apply_filterset(check->filterset, check, (metric_t *)data);
nc_printf(ncct, " %c%s\n", filtered ? '*' : ' ', buff);
}
}
}
}
out:
if(pobj) xmlXPathFreeObject(pobj);
return 0;
}
int
stratcon_line_to_javascript(noit_http_session_ctx *ctx, char *in_buff,
u_int32_t *inc_id) {
char buffer[1024];
char *scp, *ecp, *token, *buff;
int i, len, cnt;
const char *v, *cb = NULL;
noit_hash_table json = NOIT_HASH_EMPTY;
noit_http_request *req = noit_http_session_request(ctx);
char s_inc_id[42];
char **outrows = NULL;
cb = noit_http_request_querystring(req, "cb");
for(v = cb; v && *v; v++)
if(!((*v >= '0' && *v <= '9') ||
(*v >= 'a' && *v <= 'z') ||
(*v >= 'A' && *v <= 'Z') ||
(*v == '_') || (*v == '.'))) {
cb = NULL;
break;
}
if(!cb) cb = "window.parent.plot_iframe_data";
#define BAIL_HTTP_WRITE do { \
if(outrows) { \
for(i=0;i<cnt;i++) if(outrows[i]) free(outrows[i]); \
free(outrows); \
} \
noit_hash_destroy(&json, NULL, free); \
noitL(noit_error, "javascript emit failed: %s:%s:%d\n", \
__FILE__, __FUNCTION__, __LINE__); \
return -1; \
} while(0)
#define PROCESS_NEXT_FIELD(t,l) do { \
if(!*scp) goto bad_row; \
ecp = strchr(scp, '\t'); \
if(!ecp) goto bad_row; \
t = scp; \
l = (ecp-scp); \
scp = ecp + 1; \
} while(0)
#define PROCESS_LAST_FIELD(t,l) do { \
if(!*scp) ecp = scp; \
else { \
ecp = scp + strlen(scp); /* Puts us at the '\0' */ \
if(*(ecp-1) == '\n') ecp--; /* We back up on letter if we ended in \n */ \
} \
t = scp; \
l = (ecp-scp); \
} while(0)
noitL(noit_error, "recv(%s)\n", in_buff);
if(in_buff[0] == 'B' && in_buff[1] != '\0' && in_buff[2] == '\t') {
cnt = noit_check_log_b_to_sm(in_buff, strlen(in_buff), &outrows);
}
else {
cnt = 1;
outrows = malloc(sizeof(*outrows));
outrows[0] = strdup(in_buff);
}
for(i=0; i<cnt; i++) {
buff = outrows[i];
if(!buff) continue;
noitL(noit_error, "recv_xlt(%s)\n", buff);
scp = buff;
PROCESS_NEXT_FIELD(token,len); /* Skip the leader */
if(buff[1] == '\t' && (buff[0] == 'M' || buff[0] == 'S')) {
char target[256], module[256], name[256], uuid_str[UUID_STR_LEN+1];
noit_http_request *req = noit_http_session_request(ctx);
noit_hash_table *qs;
noit_hash_iter iter = NOIT_HASH_ITER_ZERO;
const char *key;
int klen, i=0;
void *vval;
char type[2] = { '\0', '\0' };
type[0] = buff[0];
#define ra_write(a,b) if(noit_http_response_append(ctx, a, b) == noit_false) BAIL_HTTP_WRITE
snprintf(s_inc_id, sizeof(s_inc_id), "script-%08x", (*inc_id)++);
snprintf(buffer, sizeof(buffer), "<script id=\"%s\">%s({", s_inc_id, cb);
ra_write(buffer, strlen(buffer));
qs = noit_http_request_querystring_table(req);
while(noit_hash_next(qs, &iter, &key, &klen, &vval)) {
if(!strcmp(key, "cb")) continue;
noit_hash_store(&json, key, klen, strdup(vval ?(char *)vval : "true"));
}
/* Time */
noit_hash_store(&json, "script_id", 9, strdup(s_inc_id));
noit_hash_store(&json, "type", 4, strdup(type));
PROCESS_NEXT_FIELD(token,len);
noit_hash_store(&json, "time", 4, noit__strndup(token, len));
/* UUID */
PROCESS_NEXT_FIELD(token,len);
noit_check_extended_id_split(token, len, target, sizeof(target),
module, sizeof(module), name, sizeof(name),
uuid_str, sizeof(uuid_str));
if(*uuid_str)
noit_hash_store(&json, "id", 2,
noit__strndup(uuid_str, strlen(uuid_str)));
if(*target)
noit_hash_store(&json, "check_target", 12,
noit__strndup(target, strlen(target)));
if(*module)
noit_hash_store(&json, "check_module", 12,
noit__strndup(module, strlen(module)));
if(*name)
noit_hash_store(&json, "check_name", 10,
noit__strndup(name, strlen(name)));
if(buff[0] == 'M') {
/* name */
PROCESS_NEXT_FIELD(token,len);
noit_hash_store(&json, "metric_name", 11, noit__strndup(token, len));
/* type */
PROCESS_NEXT_FIELD(token,len);
noit_hash_store(&json, "metric_type", 11, noit__strndup(token, len));
/* value */
PROCESS_LAST_FIELD(token,len); /* value */
noit_hash_store(&json, "value", 5, noit__strndup(token, len));
}
else if(buff[0] == 'S') {
/* state */
PROCESS_NEXT_FIELD(token,len);
noit_hash_store(&json, "check_state", 11, noit__strndup(token, len));
/* availability */
PROCESS_NEXT_FIELD(token,len);
noit_hash_store(&json, "check_availability", 18, noit__strndup(token, len));
/* duration */
PROCESS_NEXT_FIELD(token,len);
noit_hash_store(&json, "check_duration_ms", 17, noit__strndup(token, len));
/* status */
PROCESS_LAST_FIELD(token,len);
noit_hash_store(&json, "status_message", 14, noit__strndup(token, len));
}
memset(&iter, 0, sizeof(iter));
while(noit_hash_next(&json, &iter, &key, &klen, &vval)) {
char *val = (char *)vval;
if(i++) ra_write(",", 1);
ra_write("\"", 1);
ra_write(key, klen);
ra_write("\":\"", 3);
while(*val) {
if(*val == '\"' || *val == '\\') {
ra_write((char *)"\\", 1);
}
if(isprint(*val)) {
ra_write((char *)val, 1);
}
else {
char od[5];
snprintf(od, sizeof(od), "\\%03o", *((unsigned char *)val));
ra_write(od, strlen(od));
}
val++;
}
ra_write("\"", 1);
}
snprintf(buffer, sizeof(buffer), "});</script>\n");
ra_write(buffer, strlen(buffer));
if(noit_http_response_flush(ctx, noit_false) == noit_false) BAIL_HTTP_WRITE;
}
noit_hash_destroy(&json, NULL, free);
memset(&json, 0, sizeof(json));
}
if(outrows) {
for(i=0;i<cnt;i++) if(outrows[i]) free(outrows[i]);
free(outrows);
}
return 0;
bad_row:
BAIL_HTTP_WRITE;
}
void
noit_check_release_attrs(noit_hash_table *attrs) {
noit_hash_destroy(attrs, NULL, NULL);
}
static int dns_check_send(noit_module_t *self, noit_check_t *check,
noit_check_t *cause) {
void *vnv_pair = NULL;
struct dns_nameval *nv_pair;
eventer_t newe;
struct timeval p_int, now;
struct dns_check_info *ci = check->closure;
const char *config_val;
const char *rtype = NULL;
const char *nameserver = NULL;
int port = 0;
const char *port_str = NULL;
const char *want_sort = NULL;
const char *ctype = "IN";
const char *query = NULL;
char interpolated_nameserver[1024];
char interpolated_query[1024];
noit_hash_table check_attrs_hash = NOIT_HASH_EMPTY;
BAIL_ON_RUNNING_CHECK(check);
gettimeofday(&now, NULL);
memcpy(&check->last_fire_time, &now, sizeof(now));
ci->current.state = NP_BAD;
ci->current.available = NP_UNAVAILABLE;
ci->timed_out = 1;
ci->nrr = 0;
ci->sort = 1;
if(!strcmp(check->name, "in-addr.arpa") ||
(strlen(check->name) >= sizeof("::in-addr.arpa") - 1 &&
!strcmp(check->name + strlen(check->name) - sizeof("::in-addr.arpa") + 1,
"::in-addr.arpa"))) {
/* in-addr.arpa defaults:
* nameserver to NULL
* rtype to PTR
* query to %[:inaddrarpa:target]
*/
nameserver = NULL;
rtype = "PTR";
query = "%[:inaddrarpa:target_ip]";
}
else {
nameserver = "%[target_ip]";
rtype = "A";
query = "%[name]";
}
if(noit_hash_retr_str(check->config, "port", strlen("port"),
&port_str)) {
port = atoi(port_str);
}
#define CONFIG_OVERRIDE(a) \
if(noit_hash_retr_str(check->config, #a, strlen(#a), \
&config_val) && \
strlen(config_val) > 0) \
a = config_val
CONFIG_OVERRIDE(ctype);
CONFIG_OVERRIDE(nameserver);
CONFIG_OVERRIDE(rtype);
CONFIG_OVERRIDE(query);
CONFIG_OVERRIDE(want_sort);
if(nameserver && !strcmp(nameserver, "default")) nameserver = NULL;
if(want_sort && strcasecmp(want_sort, "on") && strcasecmp(want_sort, "true"))
ci->sort = 0;
noit_check_make_attrs(check, &check_attrs_hash);
if(nameserver) {
noit_check_interpolate(interpolated_nameserver,
sizeof(interpolated_nameserver),
nameserver,
&check_attrs_hash, check->config);
nameserver = interpolated_nameserver;
}
if(query) {
noit_check_interpolate(interpolated_query,
sizeof(interpolated_query),
query,
&check_attrs_hash, check->config);
query = interpolated_query;
}
noit_hash_destroy(&check_attrs_hash, NULL, NULL);
check->flags |= NP_RUNNING;
noitL(nldeb, "dns_check_send(%p,%s,%s,%s,%s,%s)\n",
self, check->target, nameserver ? nameserver : "default",
query ? query : "null", ctype, rtype);
__activate_ci(ci);
/* If this ci has a handle and it isn't the one we need,
* we should release it
*/
if(ci->h &&
((ci->h->ns == NULL && nameserver != NULL) ||
(ci->h->ns != NULL && nameserver == NULL) ||
(ci->h->ns && strcmp(ci->h->ns, nameserver)))) {
dns_ctx_release(ci->h);
ci->h = NULL;
}
/* use the cached one, unless we don't have one */
if(!ci->h) ci->h = dns_ctx_alloc(nameserver, port);
if(!ci->h) ci->error = strdup("bad nameserver");
/* Lookup out class */
if(!noit_hash_retrieve(&dns_ctypes, ctype, strlen(ctype),
&vnv_pair)) {
if(ci->error) free(ci->error);
ci->error = strdup("bad class");
}
else {
nv_pair = (struct dns_nameval *)vnv_pair;
ci->query_ctype = nv_pair->val;
}
/* Lookup out rr type */
if(!noit_hash_retrieve(&dns_rtypes, rtype, strlen(rtype),
&vnv_pair)) {
if(ci->error) free(ci->error);
ci->error = strdup("bad rr type");
}
else {
nv_pair = (struct dns_nameval *)vnv_pair;
ci->query_rtype = nv_pair->val;
}
if(!ci->error) {
/* Submit the query */
int abs;
if(!dns_ptodn(query, strlen(query), ci->dn, sizeof(ci->dn), &abs) ||
!dns_submit_dn(ci->h->ctx, ci->dn, ci->query_ctype, ci->query_rtype,
abs | DNS_NOSRCH, NULL, dns_cb, ci)) {
ci->error = strdup("submission error");
}
else {
dns_timeouts(ci->h->ctx, -1, now.tv_sec);
}
}
/* we could have completed by now... if so, we've nothing to do */
if(!__isactive_ci(ci)) return 0;
if(ci->error) {
/* Errors here are easy, fail and avoid scheduling a timeout */
ci->check->flags &= ~NP_RUNNING;
dns_check_log_results(ci);
__deactivate_ci(ci);
return 0;
}
newe = eventer_alloc();
newe->mask = EVENTER_TIMER;
gettimeofday(&now, NULL);
p_int.tv_sec = check->timeout / 1000;
p_int.tv_usec = (check->timeout % 1000) * 1000;
add_timeval(now, p_int, &newe->whence);
newe->closure = ci;
newe->callback = dns_check_timeout;
ci->timeout_event = newe;
eventer_add(newe);
return 0;
}
noit_check_t *
noit_fire_check(xmlNodePtr attr, xmlNodePtr config, const char **error) {
char *target = NULL, *name = NULL, *module = NULL, *filterset = NULL;
char *resolve_rtype = NULL;
int timeout = 0, flags = NP_TRANSIENT, i, mod_cnt;
noit_module_t *m;
noit_check_t *c = NULL;
xmlNodePtr a, co;
noit_hash_table *conf_hash = NULL;
noit_hash_table **moptions = NULL;
for(a = attr->children; a; a = a->next) {
if(!strcmp((char *)a->name, "target"))
target = (char *)xmlNodeGetContent(a);
else if(!strcmp((char *)a->name, "name"))
name = (char *)xmlNodeGetContent(a);
else if(!strcmp((char *)a->name, "module"))
module = (char *)xmlNodeGetContent(a);
else if(!strcmp((char *)a->name, "filterset"))
filterset = (char *)xmlNodeGetContent(a);
else if(!strcmp((char *)a->name, "timeout")) {
char *timeout_str = (char *)xmlNodeGetContent(a);
timeout = atoi(timeout_str);
free(timeout_str);
} else if(!strcmp((char *)a->name, "resolve_rtype"))
resolve_rtype = (char *)xmlNodeGetContent(a);
}
m = noit_module_lookup(module);
if(!m) {
*error = "cannot find requested module";
goto error;
}
conf_hash = calloc(1, sizeof(*conf_hash));
if(config) {
for(co = config->children; co; co = co->next) {
char *name, *val;
xmlChar *tmp_val;
name = strdup((char *)co->name);
tmp_val = xmlNodeGetContent(co);
val = strdup(tmp_val ? (char *)tmp_val : "");
noit_hash_replace(conf_hash, name, strlen(name), val, free, free);
xmlFree(tmp_val);
}
}
mod_cnt = noit_check_registered_module_cnt();
if(mod_cnt > 0) {
moptions = alloca(mod_cnt * sizeof(*moptions));
memset(moptions, 0, mod_cnt * sizeof(*moptions));
for(i=0; i<mod_cnt; i++) {
const char *name;
noit_conf_section_t checks;
name = noit_check_registered_module(i);
checks = noit_conf_get_section(NULL, "/noit/checks");
if(name) moptions[i] = noit_conf_get_namespaced_hash(checks, "config", name);
}
}
if(!m->initiate_check) {
*error = "that module cannot run checks";
goto error;
}
flags |= noit_calc_rtype_flag(resolve_rtype);
c = calloc(1, sizeof(*c));
noit_check_update(c, target, name, filterset,
conf_hash, moptions, 0, timeout, NULL, flags);
c->module = strdup(module);
uuid_generate(c->checkid);
c->flags |= NP_DISABLED; /* this is hack to know we haven't run it yet */
if(NOIT_CHECK_SHOULD_RESOLVE(c))
noit_check_resolve(c);
error:
if(conf_hash) {
noit_hash_destroy(conf_hash, free, free);
free(conf_hash);
}
if(moptions) {
for(i=0; i<mod_cnt; i++) {
if(moptions[i]) {
noit_hash_destroy(moptions[i], free, free);
free(moptions[i]);
}
}
}
if(target) xmlFree(target);
if(name) xmlFree(name);
if(module) xmlFree(module);
if(filterset) xmlFree(filterset);
if (resolve_rtype) xmlFree(resolve_rtype);
return c;
}
static int
rest_show_check(noit_http_rest_closure_t *restc,
int npats, char **pats) {
noit_http_session_ctx *ctx = restc->http_ctx;
xmlXPathObjectPtr pobj = NULL;
xmlXPathContextPtr xpath_ctxt = NULL;
xmlDocPtr doc = NULL;
xmlNodePtr node, root, attr, config, state, tmp, anode;
uuid_t checkid;
noit_check_t *check;
char xpath[1024], *uuid_conf, *module, *value;
int rv, cnt, error_code = 500;
noit_hash_iter iter = NOIT_HASH_ITER_ZERO;
const char *k;
int klen;
void *data;
noit_hash_table *configh;
if(npats != 2) goto error;
rv = noit_check_xpath(xpath, sizeof(xpath), pats[0], pats[1]);
if(rv == 0) goto not_found;
if(rv < 0) goto error;
noit_conf_xml_xpath(NULL, &xpath_ctxt);
pobj = xmlXPathEval((xmlChar *)xpath, xpath_ctxt);
if(!pobj || pobj->type != XPATH_NODESET ||
xmlXPathNodeSetIsEmpty(pobj->nodesetval)) goto not_found;
cnt = xmlXPathNodeSetGetLength(pobj->nodesetval);
if(cnt != 1) goto error;
node = (noit_conf_section_t)xmlXPathNodeSetItem(pobj->nodesetval, 0);
uuid_conf = (char *)xmlGetProp(node, (xmlChar *)"uuid");
if(!uuid_conf || uuid_parse(uuid_conf, checkid)) goto error;
doc = xmlNewDoc((xmlChar *)"1.0");
root = xmlNewDocNode(doc, NULL, (xmlChar *)"check", NULL);
xmlDocSetRootElement(doc, root);
#define MYATTR(node,a,n,b) _noit_conf_get_string(node, &(n), "@" #a, &(b))
#define INHERIT(node,a,n,b) \
_noit_conf_get_string(node, &(n), "ancestor-or-self::node()/@" #a, &(b))
#define SHOW_ATTR(parent, node, a) do { \
xmlNodePtr anode = NULL; \
char *value = NULL; \
INHERIT(node, a, anode, value); \
if(value != NULL) { \
int clen, plen;\
const char *cpath, *apath; \
xmlNodePtr child; \
cpath = node ? (char *)xmlGetNodePath(node) : ""; \
apath = anode ? (char *)xmlGetNodePath(anode) : ""; \
clen = strlen(cpath); \
plen = strlen("/noit/checks"); \
child = xmlNewNode(NULL, (xmlChar *)#a); \
xmlNodeAddContent(child, (xmlChar *)value); \
if(!strncmp(cpath, apath, clen) && apath[clen] == '/') { \
} \
else { \
xmlSetProp(child, (xmlChar *)"inherited", (xmlChar *)apath+plen); \
} \
xmlAddChild(parent, child); \
} \
} while(0)
attr = xmlNewNode(NULL, (xmlChar *)"attributes");
xmlAddChild(root, attr);
SHOW_ATTR(attr,node,uuid);
/* Name is odd, it falls back transparently to module */
if(!INHERIT(node, module, tmp, module)) module = NULL;
xmlAddChild(attr, (tmp = xmlNewNode(NULL, (xmlChar *)"name")));
if(MYATTR(node, name, anode, value))
xmlNodeAddContent(tmp, (xmlChar *)value);
else if(module)
xmlNodeAddContent(tmp, (xmlChar *)module);
SHOW_ATTR(attr,node,module);
SHOW_ATTR(attr,node,target);
SHOW_ATTR(attr,node,period);
SHOW_ATTR(attr,node,timeout);
SHOW_ATTR(attr,node,oncheck);
SHOW_ATTR(attr,node,filterset);
SHOW_ATTR(attr,node,disable);
/* Add the config */
config = xmlNewNode(NULL, (xmlChar *)"config");
configh = noit_conf_get_hash(node, "config");
while(noit_hash_next(configh, &iter, &k, &klen, &data))
NODE_CONTENT(config, k, data);
noit_hash_destroy(configh, free, free);
free(configh);
xmlAddChild(root, config);
/* Add the state */
check = noit_poller_lookup(checkid);
if(!check) {
state = xmlNewNode(NULL, (xmlChar *)"state");
xmlSetProp(state, (xmlChar *)"error", (xmlChar *)"true");
}
else
state = noit_check_state_as_xml(check);
xmlAddChild(root, state);
noit_http_response_ok(ctx, "text/xml");
noit_http_response_xml(ctx, doc);
noit_http_response_end(ctx);
goto cleanup;
not_found:
noit_http_response_not_found(ctx, "text/html");
noit_http_response_end(ctx);
goto cleanup;
error:
noit_http_response_standard(ctx, error_code, "ERROR", "text/html");
noit_http_response_end(ctx);
goto cleanup;
cleanup:
if(pobj) xmlXPathFreeObject(pobj);
if(doc) xmlFreeDoc(doc);
return 0;
}
void
noit_poller_process_checks(const char *xpath) {
int i, flags, cnt = 0;
noit_conf_section_t *sec;
__config_load_generation++;
sec = noit_conf_get_sections(NULL, xpath, &cnt);
for(i=0; i<cnt; i++) {
void *vcheck;
char uuid_str[37];
char target[256] = "";
char module[256] = "";
char name[256] = "";
char filterset[256] = "";
char oncheck[1024] = "";
int no_period = 0;
int no_oncheck = 0;
int period = 0, timeout = 0;
noit_boolean disabled = noit_false, busted = noit_false;
uuid_t uuid, out_uuid;
noit_hash_table *options;
#define NEXT(...) noitL(noit_stderr, __VA_ARGS__); continue
#define MYATTR(type,a,...) noit_conf_get_##type(sec[i], "@" #a, __VA_ARGS__)
#define INHERIT(type,a,...) \
noit_conf_get_##type(sec[i], "ancestor-or-self::node()/@" #a, __VA_ARGS__)
if(!MYATTR(stringbuf, uuid, uuid_str, sizeof(uuid_str))) {
noitL(noit_stderr, "check %d has no uuid\n", i+1);
continue;
}
if(uuid_parse(uuid_str, uuid)) {
noitL(noit_stderr, "check uuid: '%s' is invalid\n", uuid_str);
continue;
}
if(!INHERIT(stringbuf, target, target, sizeof(target))) {
noitL(noit_stderr, "check uuid: '%s' has no target\n", uuid_str);
busted = noit_true;
}
if(!INHERIT(stringbuf, module, module, sizeof(module))) {
noitL(noit_stderr, "check uuid: '%s' has no module\n", uuid_str);
busted = noit_true;
}
if(!INHERIT(stringbuf, filterset, filterset, sizeof(filterset)))
filterset[0] = '\0';
if(!MYATTR(stringbuf, name, name, sizeof(name)))
strlcpy(name, module, sizeof(name));
if(!INHERIT(int, period, &period) || period == 0)
no_period = 1;
if(!INHERIT(stringbuf, oncheck, oncheck, sizeof(oncheck)) || !oncheck[0])
no_oncheck = 1;
if(no_period && no_oncheck) {
noitL(noit_stderr, "check uuid: '%s' has neither period nor oncheck\n",
uuid_str);
busted = noit_true;
}
if(!(no_period || no_oncheck)) {
noitL(noit_stderr, "check uuid: '%s' has oncheck and period.\n",
uuid_str);
busted = noit_true;
}
if(!INHERIT(int, timeout, &timeout)) {
noitL(noit_stderr, "check uuid: '%s' has no timeout\n", uuid_str);
busted = noit_true;
}
if(!no_period && timeout >= period) {
noitL(noit_stderr, "check uuid: '%s' timeout > period\n", uuid_str);
timeout = period/2;
}
options = noit_conf_get_hash(sec[i], "config");
INHERIT(boolean, disable, &disabled);
flags = 0;
if(busted) flags |= (NP_UNCONFIG|NP_DISABLED);
else if(disabled) flags |= NP_DISABLED;
if(noit_hash_retrieve(&polls, (char *)uuid, UUID_SIZE,
&vcheck)) {
noit_check_t *existing_check = (noit_check_t *)vcheck;
/* Once set, we can never change it. */
assert(!existing_check->module || !existing_check->module[0] ||
!strcmp(existing_check->module, module));
/* Only set it if it is not yet set */
if(!existing_check->module || !existing_check->module[0]) {
if(existing_check->module) free(existing_check->module);
existing_check->module = strdup(module);
}
noit_check_update(existing_check, target, name, filterset, options,
period, timeout, oncheck[0] ? oncheck : NULL,
flags);
noitL(noit_debug, "reloaded uuid: %s\n", uuid_str);
}
else {
noit_poller_schedule(target, module, name, filterset, options,
period, timeout, oncheck[0] ? oncheck : NULL,
flags, uuid, out_uuid);
noitL(noit_debug, "loaded uuid: %s\n", uuid_str);
}
noit_hash_destroy(options, free, free);
free(options);
}
if(sec) free(sec);
}
