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/* Copyright (c) 2013, Vsevolod Stakhov
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "rcl.h"
#include "rcl_internal.h"
/**
* @file rcl_util.c
* Utilities for rcl parsing
*/
static void
rspamd_cl_obj_free_internal (rspamd_cl_object_t *obj, gboolean allow_rec)
{
rspamd_cl_object_t *sub, *tmp;
while (obj != NULL) {
if (obj->key != NULL) {
g_free (obj->key);
}
if (obj->type == RSPAMD_CL_STRING) {
g_free (obj->value.sv);
}
else if (obj->type == RSPAMD_CL_ARRAY) {
sub = obj->value.ov;
while (sub != NULL) {
tmp = sub->next;
rspamd_cl_obj_free_internal (sub, FALSE);
sub = tmp;
}
}
else if (obj->type == RSPAMD_CL_OBJECT) {
HASH_ITER (hh, obj->value.ov, sub, tmp) {
HASH_DELETE (hh, obj->value.ov, sub);
rspamd_cl_obj_free_internal (sub, TRUE);
}
}
tmp = obj->next;
g_slice_free1 (sizeof (rspamd_cl_object_t), obj);
obj = tmp;
if (!allow_rec) {
break;
}
}
}
void
rspamd_cl_obj_free (rspamd_cl_object_t *obj)
{
rspamd_cl_obj_free_internal (obj, TRUE);
}
void
rspamd_cl_unescape_json_string (gchar *str)
{
gchar *t = str, *h = str;
gint i, uval;
/* t is target (tortoise), h is source (hare) */
while (*h != '\0') {
if (*h == '\\') {
h ++;
switch (*h) {
case 'n':
*t++ = '\n';
break;
case 'r':
*t++ = '\r';
break;
case 'b':
*t++ = '\b';
break;
case 't':
*t++ = '\t';
break;
case 'f':
*t++ = '\f';
break;
case '\\':
*t++ = '\\';
break;
case '"':
*t++ = '"';
break;
case 'u':
/* Unicode escape */
uval = 0;
for (i = 0; i < 4; i++) {
uval <<= 4;
if (g_ascii_isdigit (h[i])) {
uval += h[i] - '0';
}
else if (h[i] >= 'a' && h[i] <= 'f') {
uval += h[i] - 'a' + 10;
}
else if (h[i] >= 'A' && h[i] <= 'F') {
uval += h[i] - 'A' + 10;
}
}
h += 3;
/* Encode */
if(uval < 0x80) {
t[0] = (char)uval;
t ++;
}
else if(uval < 0x800) {
t[0] = 0xC0 + ((uval & 0x7C0) >> 6);
t[1] = 0x80 + ((uval & 0x03F));
t += 2;
}
else if(uval < 0x10000) {
t[0] = 0xE0 + ((uval & 0xF000) >> 12);
t[1] = 0x80 + ((uval & 0x0FC0) >> 6);
t[2] = 0x80 + ((uval & 0x003F));
t += 3;
}
else if(uval <= 0x10FFFF) {
t[0] = 0xF0 + ((uval & 0x1C0000) >> 18);
t[1] = 0x80 + ((uval & 0x03F000) >> 12);
t[2] = 0x80 + ((uval & 0x000FC0) >> 6);
t[3] = 0x80 + ((uval & 0x00003F));
t += 4;
}
else {
*t++ = '?';
}
break;
default:
*t++ = '?';
break;
}
h ++;
}
else {
*t++ = *h++;
}
}
}
rspamd_cl_object_t*
rspamd_cl_parser_get_object (struct rspamd_cl_parser *parser, GError **err)
{
if (parser->state != RSPAMD_RCL_STATE_INIT && parser->state != RSPAMD_RCL_STATE_ERROR) {
return parser->top_obj;
}
return NULL;
}
void
rspamd_cl_parser_free (struct rspamd_cl_parser *parser)
{
struct rspamd_cl_stack *stack, *stmp;
struct rspamd_cl_macro *macro, *mtmp;
struct rspamd_cl_chunk *chunk, *ctmp;
if (parser->top_obj != NULL) {
rspamd_cl_obj_free (parser->top_obj);
}
LL_FOREACH_SAFE (parser->stack, stack, stmp) {
g_slice_free1 (sizeof (struct rspamd_cl_stack), stack);
}
HASH_ITER (hh, parser->macroes, macro, mtmp) {
g_slice_free1 (sizeof (struct rspamd_cl_macro), macro);
}
LL_FOREACH_SAFE (parser->chunks, chunk, ctmp) {
g_slice_free1 (sizeof (struct rspamd_cl_chunk), chunk);
}
g_slice_free1 (sizeof (struct rspamd_cl_parser), parser);
}
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