diff --git a/src/core/store_json.c b/src/core/store_json.c
index 493ac9f377c9072d54fdf76488ab242e76cc6ec6..7362691398af584ed3725d220cbebb85a26d6906 100644 (file)
--- a/src/core/store_json.c
+++ b/src/core/store_json.c
#include <assert.h>
+#include <ctype.h>
#include <stdlib.h>
+#include <string.h>
/*
* private data types
* private helper functions
*/
+static void
+escape_string(const char *src, char *dest)
+{
+ size_t i = 1;
+ dest[0] = '"';
+ for ( ; *src; ++src) {
+ char c = *src;
+ if ((c == '"') || (c == '\\') || iscntrl((int)c)) {
+ dest[i] = '\\';
+ ++i;
+ }
+ switch (c) {
+ case '\a': dest[i] = 'a'; break;
+ case '\b': dest[i] = 'b'; break;
+ case '\t': dest[i] = 't'; break;
+ case '\n': dest[i] = 'n'; break;
+ case '\v': dest[i] = 'v'; break;
+ case '\f': dest[i] = 'f'; break;
+ case '\r': dest[i] = 'r'; break;
+ default: dest[i] = c; break;
+ }
+ ++i;
+ }
+ dest[i] = '"';
+ dest[i + 1] = '\0';
+} /* escape_string */
+
static int
json_emit(sdb_store_json_formatter_t *f, sdb_store_obj_t *obj)
{
char time_str[64];
char interval_str[64];
+ char name[2 * strlen(SDB_OBJ(obj)->name) + 3];
size_t i;
assert(f && obj);
}
}
- sdb_strbuf_append(f->buf, "{\"name\": \"%s\", ", SDB_OBJ(obj)->name);
+ escape_string(SDB_OBJ(obj)->name, name);
+ sdb_strbuf_append(f->buf, "{\"name\": %s, ", name);
if (obj->type == SDB_ATTRIBUTE) {
char tmp[sdb_data_strlen(&ATTR(obj)->value) + 1];
- if (sdb_data_format(&ATTR(obj)->value, tmp, sizeof(tmp),
- SDB_DOUBLE_QUOTED) < 0)
+ char val[2 * sizeof(tmp) + 3];
+ if (! sdb_data_format(&ATTR(obj)->value, tmp, sizeof(tmp),
+ SDB_DOUBLE_QUOTED))
snprintf(tmp, sizeof(tmp), "<error>");
- sdb_strbuf_append(f->buf, "\"value\": %s, ", tmp);
+
+ if (tmp[0] == '"') {
+ /* a string; escape_string handles quoting */
+ tmp[strlen(tmp) - 1] = '\0';
+ escape_string(tmp + 1, val);
+ sdb_strbuf_append(f->buf, "\"value\": %s, ", val);
+ }
+ else
+ sdb_strbuf_append(f->buf, "\"value\": %s, ", tmp);
+ }
+ else if (obj->type == SDB_METRIC) {
+ if (METRIC(obj)->store.type != NULL)
+ sdb_strbuf_append(f->buf, "\"timeseries\": true, ");
+ else
+ sdb_strbuf_append(f->buf, "\"timeseries\": false, ");
}
/* TODO: make time and interval formats configurable */
- if (! sdb_strftime(time_str, sizeof(time_str),
- "%F %T %z", obj->last_update))
+ if (! sdb_strftime(time_str, sizeof(time_str), obj->last_update))
snprintf(time_str, sizeof(time_str), "<error>");
time_str[sizeof(time_str) - 1] = '\0';