src/web/api/formatters/rrd2json.c
// SPDX-License-Identifier: GPL-3.0-or-later
#include "web/api/web_api_v1.h"
#include "database/storage_engine.h"
void rrd_stats_api_v1_chart(RRDSET *st, BUFFER *wb)
{
buffer_json_initialize(wb, "\"", "\"", 0, true, BUFFER_JSON_OPTIONS_DEFAULT);
rrdset2json(st, wb, NULL, NULL);
buffer_json_finalize(wb);
}
const char *rrdr_format_to_string(DATASOURCE_FORMAT format) {
switch(format) {
case DATASOURCE_JSON:
return DATASOURCE_FORMAT_JSON;
case DATASOURCE_JSON2:
return DATASOURCE_FORMAT_JSON2;
case DATASOURCE_DATATABLE_JSON:
return DATASOURCE_FORMAT_DATATABLE_JSON;
case DATASOURCE_DATATABLE_JSONP:
return DATASOURCE_FORMAT_DATATABLE_JSONP;
case DATASOURCE_JSONP:
return DATASOURCE_FORMAT_JSONP;
case DATASOURCE_SSV:
return DATASOURCE_FORMAT_SSV;
case DATASOURCE_CSV:
return DATASOURCE_FORMAT_CSV;
case DATASOURCE_TSV:
return DATASOURCE_FORMAT_TSV;
case DATASOURCE_HTML:
return DATASOURCE_FORMAT_HTML;
case DATASOURCE_JS_ARRAY:
return DATASOURCE_FORMAT_JS_ARRAY;
case DATASOURCE_SSV_COMMA:
return DATASOURCE_FORMAT_SSV_COMMA;
default:
return "unknown";
}
}
int rrdset2value_api_v1(
RRDSET *st
, BUFFER *wb
, NETDATA_DOUBLE *n
, const char *dimensions
, size_t points
, time_t after
, time_t before
, RRDR_TIME_GROUPING group_method
, const char *group_options
, time_t resampling_time
, uint32_t options
, time_t *db_after
, time_t *db_before
, size_t *db_points_read
, size_t *db_points_per_tier
, size_t *result_points_generated
, int *value_is_null
, NETDATA_DOUBLE *anomaly_rate
, time_t timeout
, size_t tier
, QUERY_SOURCE query_source
, STORAGE_PRIORITY priority
) {
int ret = HTTP_RESP_INTERNAL_SERVER_ERROR;
ONEWAYALLOC *owa = onewayalloc_create(0);
RRDR *r = rrd2rrdr_legacy(
owa,
st,
points,
after,
before,
group_method,
resampling_time,
options,
dimensions,
group_options,
timeout,
tier,
query_source,
priority);
if(!r) {
if(value_is_null) *value_is_null = 1;
ret = HTTP_RESP_INTERNAL_SERVER_ERROR;
goto cleanup;
}
if(db_points_read)
*db_points_read += r->stats.db_points_read;
if(db_points_per_tier) {
for(size_t t = 0; t < storage_tiers ;t++)
db_points_per_tier[t] += r->internal.qt->db.tiers[t].points;
}
if(result_points_generated)
*result_points_generated += r->stats.result_points_generated;
if(rrdr_rows(r) == 0) {
if(db_after) *db_after = 0;
if(db_before) *db_before = 0;
if(value_is_null) *value_is_null = 1;
ret = HTTP_RESP_BAD_REQUEST;
goto cleanup;
}
if(wb) {
if (r->view.flags & RRDR_RESULT_FLAG_RELATIVE)
buffer_no_cacheable(wb);
else if (r->view.flags & RRDR_RESULT_FLAG_ABSOLUTE)
buffer_cacheable(wb);
}
if(db_after) *db_after = r->view.after;
if(db_before) *db_before = r->view.before;
long i = (!(options & RRDR_OPTION_REVERSED))?(long)rrdr_rows(r) - 1:0;
*n = rrdr2value(r, i, options, value_is_null, anomaly_rate);
ret = HTTP_RESP_OK;
cleanup:
rrdr_free(owa, r);
onewayalloc_destroy(owa);
return ret;
}
static inline void buffer_json_member_add_key_only(BUFFER *wb, const char *key) {
buffer_print_json_comma_newline_spacing(wb);
buffer_print_json_key(wb, key);
buffer_fast_strcat(wb, ":", 1);
wb->json.stack[wb->json.depth].count++;
}
static inline void buffer_json_member_add_string_open(BUFFER *wb, const char *key) {
buffer_json_member_add_key_only(wb, key);
buffer_strcat(wb, wb->json.value_quote);
}
static inline void buffer_json_member_add_string_close(BUFFER *wb) {
buffer_strcat(wb, wb->json.value_quote);
}
int data_query_execute(ONEWAYALLOC *owa, BUFFER *wb, QUERY_TARGET *qt, time_t *latest_timestamp) {
wrapper_begin_t wrapper_begin = rrdr_json_wrapper_begin;
wrapper_end_t wrapper_end = rrdr_json_wrapper_end;
if(qt->request.version == 2) {
wrapper_begin = rrdr_json_wrapper_begin2;
wrapper_end = rrdr_json_wrapper_end2;
}
RRDR *r = rrd2rrdr(owa, qt);
if(!r) {
buffer_strcat(wb, "Cannot generate output with these parameters on this chart.");
return HTTP_RESP_INTERNAL_SERVER_ERROR;
}
if (r->view.flags & RRDR_RESULT_FLAG_CANCEL) {
rrdr_free(owa, r);
return HTTP_RESP_CLIENT_CLOSED_REQUEST;
}
if(r->view.flags & RRDR_RESULT_FLAG_RELATIVE)
buffer_no_cacheable(wb);
else if(r->view.flags & RRDR_RESULT_FLAG_ABSOLUTE)
buffer_cacheable(wb);
if(latest_timestamp && rrdr_rows(r) > 0)
*latest_timestamp = r->view.before;
DATASOURCE_FORMAT format = qt->request.format;
RRDR_OPTIONS options = qt->window.options;
switch(format) {
case DATASOURCE_SSV:
if(options & RRDR_OPTION_JSON_WRAP) {
wb->content_type = CT_APPLICATION_JSON;
wrapper_begin(r, wb);
buffer_json_member_add_string_open(wb, "result");
rrdr2ssv(r, wb, options, "", " ", "");
buffer_json_member_add_string_close(wb);
wrapper_end(r, wb);
}
else {
wb->content_type = CT_TEXT_PLAIN;
rrdr2ssv(r, wb, options, "", " ", "");
}
break;
case DATASOURCE_SSV_COMMA:
if(options & RRDR_OPTION_JSON_WRAP) {
wb->content_type = CT_APPLICATION_JSON;
wrapper_begin(r, wb);
buffer_json_member_add_string_open(wb, "result");
rrdr2ssv(r, wb, options, "", ",", "");
buffer_json_member_add_string_close(wb);
wrapper_end(r, wb);
}
else {
wb->content_type = CT_TEXT_PLAIN;
rrdr2ssv(r, wb, options, "", ",", "");
}
break;
case DATASOURCE_JS_ARRAY:
if(options & RRDR_OPTION_JSON_WRAP) {
wb->content_type = CT_APPLICATION_JSON;
wrapper_begin(r, wb);
buffer_json_member_add_array(wb, "result");
rrdr2ssv(r, wb, options, "", ",", "");
buffer_json_array_close(wb);
wrapper_end(r, wb);
}
else {
wb->content_type = CT_APPLICATION_JSON;
rrdr2ssv(r, wb, options, "[", ",", "]");
}
break;
case DATASOURCE_CSV:
if(options & RRDR_OPTION_JSON_WRAP) {
wb->content_type = CT_APPLICATION_JSON;
wrapper_begin(r, wb);
buffer_json_member_add_string_open(wb, "result");
rrdr2csv(r, wb, format, options, "", ",", "\\n", "");
buffer_json_member_add_string_close(wb);
wrapper_end(r, wb);
}
else {
wb->content_type = CT_TEXT_PLAIN;
rrdr2csv(r, wb, format, options, "", ",", "\r\n", "");
}
break;
case DATASOURCE_CSV_MARKDOWN:
if(options & RRDR_OPTION_JSON_WRAP) {
wb->content_type = CT_APPLICATION_JSON;
wrapper_begin(r, wb);
buffer_json_member_add_string_open(wb, "result");
rrdr2csv(r, wb, format, options, "", "|", "\\n", "");
buffer_json_member_add_string_close(wb);
wrapper_end(r, wb);
}
else {
wb->content_type = CT_TEXT_PLAIN;
rrdr2csv(r, wb, format, options, "", "|", "\r\n", "");
}
break;
case DATASOURCE_CSV_JSON_ARRAY:
wb->content_type = CT_APPLICATION_JSON;
if(options & RRDR_OPTION_JSON_WRAP) {
wrapper_begin(r, wb);
buffer_json_member_add_array(wb, "result");
rrdr2csv(r, wb, format, options + RRDR_OPTION_LABEL_QUOTES, "[", ",", "]", ",\n");
buffer_json_array_close(wb);
wrapper_end(r, wb);
}
else {
wb->content_type = CT_APPLICATION_JSON;
buffer_strcat(wb, "[\n");
rrdr2csv(r, wb, format, options + RRDR_OPTION_LABEL_QUOTES, "[", ",", "]", ",\n");
buffer_strcat(wb, "\n]");
}
break;
case DATASOURCE_TSV:
if(options & RRDR_OPTION_JSON_WRAP) {
wb->content_type = CT_APPLICATION_JSON;
wrapper_begin(r, wb);
buffer_json_member_add_string_open(wb, "result");
rrdr2csv(r, wb, format, options, "", "\t", "\\n", "");
buffer_json_member_add_string_close(wb);
wrapper_end(r, wb);
}
else {
wb->content_type = CT_TEXT_PLAIN;
rrdr2csv(r, wb, format, options, "", "\t", "\r\n", "");
}
break;
case DATASOURCE_HTML:
if(options & RRDR_OPTION_JSON_WRAP) {
wb->content_type = CT_APPLICATION_JSON;
wrapper_begin(r, wb);
buffer_json_member_add_string_open(wb, "result");
buffer_strcat(wb, "<html>\\n<center>\\n<table border=\\\"0\\\" cellpadding=\\\"5\\\" cellspacing=\\\"5\\\">\\n");
rrdr2csv(r, wb, format, options, "<tr><td>", "</td><td>", "</td></tr>\\n", "");
buffer_strcat(wb, "</table>\\n</center>\\n</html>\\n");
buffer_json_member_add_string_close(wb);
wrapper_end(r, wb);
}
else {
wb->content_type = CT_TEXT_HTML;
buffer_strcat(wb, "<html>\n<center>\n<table border=\"0\" cellpadding=\"5\" cellspacing=\"5\">\n");
rrdr2csv(r, wb, format, options, "<tr><td>", "</td><td>", "</td></tr>\n", "");
buffer_strcat(wb, "</table>\n</center>\n</html>\n");
}
break;
case DATASOURCE_DATATABLE_JSONP:
wb->content_type = CT_APPLICATION_X_JAVASCRIPT;
if(options & RRDR_OPTION_JSON_WRAP) {
wrapper_begin(r, wb);
buffer_json_member_add_key_only(wb, "result");
}
rrdr2json(r, wb, options, 1);
if(options & RRDR_OPTION_JSON_WRAP)
wrapper_end(r, wb);
break;
case DATASOURCE_DATATABLE_JSON:
wb->content_type = CT_APPLICATION_JSON;
if(options & RRDR_OPTION_JSON_WRAP) {
wrapper_begin(r, wb);
buffer_json_member_add_key_only(wb, "result");
}
rrdr2json(r, wb, options, 1);
if(options & RRDR_OPTION_JSON_WRAP)
wrapper_end(r, wb);
break;
case DATASOURCE_JSONP:
wb->content_type = CT_APPLICATION_X_JAVASCRIPT;
if(options & RRDR_OPTION_JSON_WRAP) {
wrapper_begin(r, wb);
buffer_json_member_add_key_only(wb, "result");
}
rrdr2json(r, wb, options, 0);
if(options & RRDR_OPTION_JSON_WRAP)
wrapper_end(r, wb);
break;
case DATASOURCE_JSON:
default:
wb->content_type = CT_APPLICATION_JSON;
if(options & RRDR_OPTION_JSON_WRAP) {
wrapper_begin(r, wb);
buffer_json_member_add_key_only(wb, "result");
}
rrdr2json(r, wb, options, 0);
if(options & RRDR_OPTION_JSON_WRAP) {
if (options & RRDR_OPTION_RETURN_JWAR) {
buffer_json_member_add_key_only(wb, "anomaly_rates");
rrdr2json(r, wb, options | RRDR_OPTION_INTERNAL_AR, false);
}
wrapper_end(r, wb);
}
break;
case DATASOURCE_JSON2:
wb->content_type = CT_APPLICATION_JSON;
wrapper_begin(r, wb);
rrdr2json_v2(r, wb);
wrapper_end(r, wb);
break;
}
rrdr_free(owa, r);
return HTTP_RESP_OK;
}