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libdm: report: fix json reporting to escape '"' character that may appear in reported string

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This commit is contained in:
Peter Rajnoha 2016-07-26 12:27:41 +02:00
parent d180bf6311
commit f9697ea006
2 changed files with 30 additions and 3 deletions
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1
WHATS_NEW_DM
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@ -1,5 +1,6 @@
Version 1.02.132 -
=================================
Fix json reporting to escape '"' character that may appear in reported string.
Version 1.02.131 - 15th July 2016
=================================

32
libdm/libdm-report.c
View File

@ -4320,6 +4320,7 @@ static int _sort_rows(struct dm_report *rh)
#define JSON_OBJECT_END "}"
#define JSON_ARRAY_START "["
#define JSON_ARRAY_END "]"
#define JSON_ESCAPE_CHAR "\\"
#define UNABLE_TO_EXTEND_OUTPUT_LINE_MSG "dm_report: Unable to extend output line"
@ -4346,6 +4347,7 @@ static int _output_field(struct dm_report *rh, struct dm_report_field *field)
int32_t width;
uint32_t align;
const char *repstr;
const char *p1_repstr, *p2_repstr;
char *buf = NULL;
size_t buf_size = 0;
@ -4393,9 +4395,33 @@ static int _output_field(struct dm_report *rh, struct dm_report_field *field)
repstr = field->report_string;
width = field->props->width;
if (!(rh->flags & DM_REPORT_OUTPUT_ALIGNED)) {
if (!dm_pool_grow_object(rh->mem, repstr, 0)) {
log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
return 0;
if (_is_json_report(rh)) {
/* Escape any JSON_QUOTE that may appear in reported string. */
p1_repstr = repstr;
while ((p2_repstr = strstr(p1_repstr, JSON_QUOTE))) {
if (p2_repstr > p1_repstr) {
if (!dm_pool_grow_object(rh->mem, p1_repstr, p2_repstr - p1_repstr)) {
log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
return 0;
}
}
if (!dm_pool_grow_object(rh->mem, JSON_ESCAPE_CHAR, 1) ||
!dm_pool_grow_object(rh->mem, JSON_QUOTE, 1)) {
log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
return 0;
}
p1_repstr = p2_repstr + 1;
}
if (!dm_pool_grow_object(rh->mem, p1_repstr, 0)) {
log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
return 0;
}
} else {
if (!dm_pool_grow_object(rh->mem, repstr, 0)) {
log_error(UNABLE_TO_EXTEND_OUTPUT_LINE_MSG);
return 0;
}
}
} else {
if (!(align = field->props->flags & DM_REPORT_FIELD_ALIGN_MASK))