static int
rest_get_noit_config(mtev_http_rest_closure_t *restc,
int npats, char **pats) {
mtev_http_session_ctx *ctx = restc->http_ctx;
char *xml = NULL;
if(npats != 0) {
mtev_http_response_server_error(ctx, "text/xml");
mtev_http_response_end(ctx);
return 0;
}
xml = ingestor->get_noit_config(restc->remote_cn);
if(xml == NULL) {
char buff[1024];
snprintf(buff, sizeof(buff), "<error><remote_cn>%s</remote_cn>"
"<row_count>%d</row_count></error>\n",
restc->remote_cn, 0);
mtev_http_response_append(ctx, buff, strlen(buff));
mtev_http_response_not_found(ctx, "text/xml");
}
else {
mtev_http_response_append(ctx, xml, strlen(xml));
mtev_http_response_ok(ctx, "text/xml");
}
if(xml) free(xml);
mtev_http_response_end(ctx);
return 0;
}
static int rest_show_feed(mtev_http_rest_closure_t *restc,
int npats, char **pats) {
mtev_http_session_ctx *ctx = restc->http_ctx;
const char *err = "unknown error";
const char *jpath_with_sub;
char jlogpath[PATH_MAX], *cp, **subs = NULL;
int nsubs, i;
mtev_log_stream_t feed;
jlog_ctx *jctx = NULL;
xmlDocPtr doc = NULL;
xmlNodePtr root = NULL, subnodes;
feed = mtev_log_stream_find("feed");
if(!feed) { err = "cannot find feed"; goto error; }
jpath_with_sub = mtev_log_stream_get_path(feed);
strlcpy(jlogpath, jpath_with_sub, sizeof(jlogpath));
cp = strchr(jlogpath, '(');
if(cp) *cp = '\0';
jctx = jlog_new(jlogpath);
if((nsubs = jlog_ctx_list_subscribers(jctx, &subs)) == -1) {
err = jlog_ctx_err_string(jctx);
goto error;
}
doc = xmlNewDoc((xmlChar *)"1.0");
root = xmlNewDocNode(doc, NULL, (xmlChar *)"feed", NULL);
xmlDocSetRootElement(doc, root);
subnodes = xmlNewNode(NULL, (xmlChar *)"subscribers");
for(i=0; i<nsubs; i++) {
xmlNewChild(subnodes, NULL, (xmlChar *)"subscriber", (xmlChar *)subs[i]);
}
xmlAddChild(root, subnodes);
mtev_http_response_ok(restc->http_ctx, "text/xml");
mtev_http_response_xml(restc->http_ctx, doc);
mtev_http_response_end(restc->http_ctx);
if(subs) jlog_ctx_list_subscribers_dispose(jctx, subs);
xmlFreeDoc(doc);
jlog_ctx_close(jctx);
return 0;
error:
if(doc) xmlFreeDoc(doc);
if(subs) jlog_ctx_list_subscribers_dispose(jctx, subs);
mtev_http_response_server_error(ctx, "text/plain");
mtev_http_response_append(ctx, err, strlen(err));
mtev_http_response_end(ctx);
if(jctx) jlog_ctx_close(jctx);
return 0;
}
static int rest_delete_feed(mtev_http_rest_closure_t *restc,
int npats, char **pats) {
mtev_http_session_ctx *ctx = restc->http_ctx;
const char *err = "unknown error";
const char *jpath_with_sub;
char jlogpath[PATH_MAX], *cp;
int rv;
mtev_log_stream_t feed;
jlog_ctx *jctx;
feed = mtev_log_stream_find("feed");
if(!feed) { err = "cannot find feed"; goto error; }
jpath_with_sub = mtev_log_stream_get_path(feed);
strlcpy(jlogpath, jpath_with_sub, sizeof(jlogpath));
cp = strchr(jlogpath, '(');
if(cp) *cp = '\0';
jctx = jlog_new(jlogpath);
rv = jlog_ctx_remove_subscriber(jctx, pats[0]);
jlog_ctx_close(jctx);
if(rv < 0) {
err = jlog_ctx_err_string(jctx);
goto error;
}
/* removed or note, we should do a sweeping cleanup */
jlog_clean(jlogpath);
if(rv == 0) {
mtev_http_response_not_found(ctx, "text/plain");
mtev_http_response_end(ctx);
return 0;
}
mtev_http_response_standard(ctx, 204, "OK", "text/plain");
mtev_http_response_end(ctx);
return 0;
error:
mtev_http_response_server_error(ctx, "text/plain");
mtev_http_response_append(ctx, err, strlen(err));
mtev_http_response_end(ctx);
return 0;
}
static int
mtev_capabilities_rest(mtev_http_rest_closure_t *restc, int n, char **p) {
mtev_capsvc_closure_t cl = { 0 };
const char *mtype = "application/xml";
if(n > 0 && !strcmp(p[0], ".json")) {
mtev_capabilities_tobuff_json(&cl, NULL);
mtype = "application/json";
}
else mtev_capabilities_tobuff(&cl, NULL);
if(!cl.buff) goto error;
mtev_http_response_ok(restc->http_ctx, mtype);
mtev_http_response_append(restc->http_ctx, cl.buff, cl.towrite);
mtev_http_response_end(restc->http_ctx);
free(cl.buff);
return 0;
error:
mtev_http_response_server_error(restc->http_ctx, "text/html");
mtev_http_response_end(restc->http_ctx);
return 0;
}
static int
rest_httptrap_handler(mtev_http_rest_closure_t *restc,
int npats, char **pats) {
int mask, complete = 0, cnt;
struct rest_json_payload *rxc = NULL;
const char *error = "internal error", *secret = NULL;
mtev_http_session_ctx *ctx = restc->http_ctx;
char json_out[128];
noit_check_t *check;
uuid_t check_id;
if(npats != 2) {
error = "bad uri";
goto error;
}
if(uuid_parse(pats[0], check_id)) {
error = "uuid parse error";
goto error;
}
if(restc->call_closure == NULL) {
httptrap_closure_t *ccl;
const char *delimiter = NULL;
rxc = restc->call_closure = calloc(1, sizeof(*rxc));
rxc->delimiter = DEFAULT_HTTPTRAP_DELIMITER;
check = noit_poller_lookup(check_id);
if(!check || strcmp(check->module, "httptrap")) {
error = "no such httptrap check";
goto error;
}
(void)mtev_hash_retr_str(check->config, "secret", strlen("secret"), &secret);
if(!secret) secret = "";
if(strcmp(pats[1], secret)) {
error = "secret mismatch";
goto error;
}
(void)mtev_hash_retr_str(check->config, "delimiter", strlen("delimiter"), &delimiter);
if(delimiter && *delimiter) rxc->delimiter = *delimiter;
rxc->check = check;
ccl = check->closure;
if(!ccl) {
error = "noitd is booting, try again in a bit";
goto error;
}
rxc->parser = yajl_alloc(&httptrap_yajl_callbacks, NULL, rxc);
rxc->depth = -1;
yajl_config(rxc->parser, yajl_allow_comments, 1);
yajl_config(rxc->parser, yajl_dont_validate_strings, 1);
yajl_config(rxc->parser, yajl_allow_trailing_garbage, 1);
yajl_config(rxc->parser, yajl_allow_partial_values, 1);
restc->call_closure_free = rest_json_payload_free;
}
else rxc = restc->call_closure;
/* flip threads */
{
mtev_http_connection *conn = mtev_http_session_connection(ctx);
eventer_t e = mtev_http_connection_event(conn);
if(e) {
pthread_t tgt = CHOOSE_EVENTER_THREAD_FOR_CHECK(rxc->check);
if(!pthread_equal(e->thr_owner, tgt)) {
e->thr_owner = tgt;
return EVENTER_READ | EVENTER_WRITE | EVENTER_EXCEPTION;
}
}
}
rxc = rest_get_json_upload(restc, &mask, &complete);
if(rxc == NULL && !complete) return mask;
if(!rxc) goto error;
if(rxc->error) goto error;
cnt = push_payload_at_check(rxc);
mtev_http_response_ok(ctx, "application/json");
snprintf(json_out, sizeof(json_out),
"{ \"stats\": %d }", cnt);
mtev_http_response_append(ctx, json_out, strlen(json_out));
mtev_http_response_end(ctx);
return 0;
error:
mtev_http_response_server_error(ctx, "application/json");
mtev_http_response_append(ctx, "{ error: \"", 10);
if(rxc && rxc->error) error = rxc->error;
mtev_http_response_append(ctx, error, strlen(error));
mtev_http_response_append(ctx, "\" }", 3);
mtev_http_response_end(ctx);
return 0;
}
static int
rest_httptrap_handler(mtev_http_rest_closure_t *restc,
int npats, char **pats) {
int mask, complete = 0, cnt;
struct rest_json_payload *rxc = NULL;
const char *error = "internal error", *secret = NULL;
mtev_http_session_ctx *ctx = restc->http_ctx;
const unsigned int DEBUGDATA_OUT_SIZE=4096;
const unsigned int JSON_OUT_SIZE=DEBUGDATA_OUT_SIZE+128;
char json_out[JSON_OUT_SIZE];
char debugdata_out[DEBUGDATA_OUT_SIZE];
int debugflag=0;
const char *debugchkflag;
noit_check_t *check;
uuid_t check_id;
mtev_http_request *req;
mtev_hash_table *hdrs;
if(npats != 2) {
error = "bad uri";
goto error;
}
if(uuid_parse(pats[0], check_id)) {
error = "uuid parse error";
goto error;
}
if(restc->call_closure == NULL) {
mtev_boolean allowed = mtev_false;
httptrap_closure_t *ccl = NULL;
const char *delimiter = NULL;
rxc = restc->call_closure = calloc(1, sizeof(*rxc));
rxc->delimiter = DEFAULT_HTTPTRAP_DELIMITER;
check = noit_poller_lookup(check_id);
if(!check) {
error = "no such check";
goto error;
}
if(!httptrap_surrogate && strcmp(check->module, "httptrap")) {
error = "no such httptrap check";
goto error;
}
/* check "secret" then "httptrap_secret" as a fallback */
(void)mtev_hash_retr_str(check->config, "secret", strlen("secret"), &secret);
if(!secret) (void)mtev_hash_retr_str(check->config, "httptrap_secret", strlen("httptrap_secret"), &secret);
if(secret && !strcmp(pats[1], secret)) allowed = mtev_true;
if(!allowed && cross_module_reverse_allowed(check, pats[1])) allowed = mtev_true;
if(!allowed) {
error = "secret mismatch";
goto error;
}
/* check "delimiter" then "httptrap_delimiter" as a fallback */
(void)mtev_hash_retr_str(check->config, "delimiter", strlen("delimiter"), &delimiter);
if(!delimiter) (void)mtev_hash_retr_str(check->config, "httptrap_delimiter", strlen("httptrap_delimiter"), &delimiter);
if(delimiter && *delimiter) rxc->delimiter = *delimiter;
rxc->check = check;
uuid_copy(rxc->check_id, check_id);
rxc->parser = yajl_alloc(&httptrap_yajl_callbacks, NULL, rxc);
rxc->depth = -1;
yajl_config(rxc->parser, yajl_allow_comments, 1);
yajl_config(rxc->parser, yajl_dont_validate_strings, 1);
yajl_config(rxc->parser, yajl_allow_trailing_garbage, 1);
yajl_config(rxc->parser, yajl_allow_partial_values, 1);
restc->call_closure_free = rest_json_payload_free;
}
else rxc = restc->call_closure;
/* flip threads */
{
mtev_http_connection *conn = mtev_http_session_connection(ctx);
eventer_t e = mtev_http_connection_event(conn);
if(e) {
pthread_t tgt = CHOOSE_EVENTER_THREAD_FOR_CHECK(rxc->check);
if(!pthread_equal(e->thr_owner, tgt)) {
e->thr_owner = tgt;
return EVENTER_READ | EVENTER_WRITE | EVENTER_EXCEPTION;
}
}
}
rxc = rest_get_json_upload(restc, &mask, &complete);
if(rxc == NULL && !complete) return mask;
if(!rxc) goto error;
if(rxc->error) goto error;
cnt = rxc->cnt;
mtev_http_response_status_set(ctx, 200, "OK");
mtev_http_response_header_set(ctx, "Content-Type", "application/json");
mtev_http_response_option_set(ctx, MTEV_HTTP_CLOSE);
/*Examine headers for x-circonus-httptrap-debug flag*/
req = mtev_http_session_request(ctx);
hdrs = mtev_http_request_headers_table(req);
/*Check if debug header passed in. If present and set to true, set debugflag value to one.*/
if(mtev_hash_retr_str(hdrs, "x-circonus-httptrap-debug", strlen("x-circonus-httptrap-debug"), &debugchkflag))
{
if (strcmp(debugchkflag,"true")==0)
{
debugflag=1;
}
}
/*If debugflag remains zero, simply output the number of metrics.*/
if (debugflag==0)
{
snprintf(json_out, sizeof(json_out),
"{ \"stats\": %d }", cnt);
}
/*Otherwise, if set to one, output current metrics in addition to number of current metrics.*/
else if (debugflag==1)
{
stats_t *c;
mtev_hash_table *metrics;
/*Retrieve check information.*/
check = noit_poller_lookup(check_id);
c = noit_check_get_stats_current(check);
metrics = noit_check_stats_metrics(c);
mtev_hash_iter iter = MTEV_HASH_ITER_ZERO;
const char *k;
int klen;
void *data;
int written=0;
int offset=0;
memset(debugdata_out,'\0',sizeof(debugdata_out));
/*Extract metrics*/
while(mtev_hash_next(metrics, &iter, &k, &klen, &data))
{
char buff[256];
int toWrite = DEBUGDATA_OUT_SIZE-offset;
metric_t *tmp=(metric_t *)data;
char *metric_name=tmp->metric_name;
metric_type_t metric_type=tmp->metric_type;
noit_stats_snprint_metric_value(buff, sizeof(buff), tmp);
written = snprintf(debugdata_out + offset, toWrite, "\"%s\": {\"_type\":\"%c\",\"_value\":\"%s\"},", metric_name,metric_type,buff);
if(toWrite < written)
{
break;
}
offset += written;
}
/*Set last character to empty-don't want extra comma in output*/
if (offset>1)
{
snprintf(debugdata_out + (offset-1), 1, "%s"," ");
}
/*Output stats and metrics.*/
snprintf(json_out, sizeof(json_out)+strlen(debugdata_out),
"{ \"stats\": %d, \"metrics\": {%s } }", cnt, debugdata_out);
}
mtev_http_response_append(ctx, json_out, strlen(json_out));
mtev_http_response_end(ctx);
return 0;
error:
mtev_http_response_server_error(ctx, "application/json");
mtev_http_response_append(ctx, "{ \"error\": \"", 12);
if(rxc && rxc->error) error = rxc->error;
mtev_http_response_append(ctx, error, strlen(error));
mtev_http_response_append(ctx, "\" }", 3);
mtev_http_response_end(ctx);
return 0;
}
