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cli: make control chars in strings are escaped correctly for json output

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We need to change json output escaping according to this
https://bugzilla.gnome.org/show_bug.cgi?id=730425

Signed-off-by: Maxim Anisimov <maxim.anisimov.ua@gmail.com>
This commit is contained in:
Maxim Anisimov
2020-06-05 09:29:23 +03:00
committed by Aleksander Morgado
parent 1e0b38d98a
commit 62c6f941a2
1 changed files with 45 additions and 2 deletions
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47
cli/mmcli-output.c
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@@ -1087,6 +1087,49 @@ dump_output_list_keyvalue (MmcF field)
/******************************************************************************/
/* JSON-friendly output */
static gchar *
json_strescape (const gchar *str)
{
const gchar *p;
const gchar *end;
GString *output;
gsize len;
len = strlen (str);
end = str + len;
output = g_string_sized_new (len);
for (p = str; p < end; p++) {
if (*p == '\\' || *p == '"') {
g_string_append_c (output, '\\');
g_string_append_c (output, *p);
} else if ((*p > 0 && *p < 0x1f) || *p == 0x7f) {
switch (*p) {
case '\b':
g_string_append (output, "\\b");
break;
case '\f':
g_string_append (output, "\\f");
break;
case '\n':
g_string_append (output, "\\n");
break;
case '\r':
g_string_append (output, "\\r");
break;
case '\t':
g_string_append (output, "\\t");
break;
default:
g_string_append_printf (output, "\\u00%02x", (guint)*p);
break;
}
} else
g_string_append_c (output, *p);
}
return g_string_free (output, FALSE);
}
static gint
list_sort_by_keys (const OutputItem *item_a,
const OutputItem *item_b)
@@ -1146,7 +1189,7 @@ dump_output_json (void)
gchar *escaped = NULL;
if (single->value)
escaped = g_strescape (single->value, "\v");
escaped = json_strescape (single->value);
g_print ("\"%s\":\"%s\"", current_path[cur_dlen], escaped ? escaped : "--");
g_free (escaped);
@@ -1160,7 +1203,7 @@ dump_output_json (void)
for (i = 0; i < n; i++) {
gchar *escaped;
escaped = g_strescape (multiple->values[i], "\v");
escaped = json_strescape (multiple->values[i]);
g_print("\"%s\"", escaped);
if (i < n - 1)
g_print(",");