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// SPDX-License-Identifier: GPL-3.0-or-later
#include "charts2json.h"
// generate JSON for the /api/v1/charts API call
void charts2json(RRDHOST *host, BUFFER *wb) {
static char *custom_dashboard_info_js_filename = NULL;
size_t c, dimensions = 0, memory = 0, alarms = 0;
RRDSET *st;
time_t now = now_realtime_sec();
if(unlikely(!custom_dashboard_info_js_filename))
custom_dashboard_info_js_filename = config_get(CONFIG_SECTION_WEB, "custom dashboard_info.js", "");
buffer_sprintf(wb, "{\n"
"\t\"hostname\": \"%s\""
",\n\t\"version\": \"%s\""
",\n\t\"os\": \"%s\""
",\n\t\"timezone\": \"%s\""
",\n\t\"update_every\": %d"
",\n\t\"history\": %ld"
",\n\t\"custom_info\": \"%s\""
",\n\t\"charts\": {"
, host->hostname
, host->program_version
, host->os
, host->timezone
, host->rrd_update_every
, host->rrd_history_entries
, custom_dashboard_info_js_filename
);
c = 0;
rrdhost_rdlock(host);
rrdset_foreach_read(st, host) {
if(rrdset_is_available_for_viewers(st)) {
if(c) buffer_strcat(wb, ",");
buffer_strcat(wb, "\n\t\t\"");
buffer_strcat(wb, st->id);
buffer_strcat(wb, "\": ");
rrdset2json(st, wb, &dimensions, &memory);
c++;
st->last_accessed_time = now;
}
}
RRDCALC *rc;
for(rc = host->alarms; rc ; rc = rc->next) {
if(rc->rrdset)
alarms++;
}
rrdhost_unlock(host);
buffer_sprintf(wb
, "\n\t}"
",\n\t\"charts_count\": %zu"
",\n\t\"dimensions_count\": %zu"
",\n\t\"alarms_count\": %zu"
",\n\t\"rrd_memory_bytes\": %zu"
",\n\t\"hosts_count\": %zu"
",\n\t\"hosts\": ["
, c
, dimensions
, alarms
, memory
, rrd_hosts_available
);
if(unlikely(rrd_hosts_available > 1)) {
rrd_rdlock();
size_t found = 0;
RRDHOST *h;
rrdhost_foreach_read(h) {
if(!rrdhost_should_be_removed(h, host, now)) {
buffer_sprintf(wb
, "%s\n\t\t{"
"\n\t\t\t\"hostname\": \"%s\""
"\n\t\t}"
, (found > 0) ? "," : ""
, h->hostname
);
found++;
}
}
rrd_unlock();
}
else {
buffer_sprintf(wb
, "\n\t\t{"
"\n\t\t\t\"hostname\": \"%s\""
"\n\t\t}"
, host->hostname
);
}
buffer_sprintf(wb, "\n\t]\n}\n");
}
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