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MODSEC-254

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This commit is contained in:
brenosilva 2011-09-05 23:28:23 +00:00
parent b0e9468d6e
commit 31183499e8
1 changed files with 101 additions and 0 deletions
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101
apache2/re_tfns.c
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@ -286,6 +286,95 @@ static int msre_fn_removeWhitespace_execute(apr_pool_t *mptmp, unsigned char *in
return changed;
}
/* removeCommentsChar */
static int msre_fn_removeCommentsChar_execute(apr_pool_t *mptmp, unsigned char *input,
long int input_len, char **rval, long int *rval_len)
{
long int i, j;
int changed = 0;
i = j = 0;
while(i < input_len) {
if ((input[i] == '/')&&(i + 1 < input_len)&&(input[i + 1] == '*')) {
changed = 1;
i += 2;
} else if ((input[i] == '*')&&(i + 1 < input_len)&&(input[i + 1] == '/')) {
changed = 1;
i += 2;
} else if ((input[i] == '-')&&(i + 1 < input_len)&&(input[i + 1] == '-')) {
changed = 1;
i += 2;
} else if (input[i] == '#') {
changed = 1;
i++;
} else {
input[j] = input[i];
i++;
j++;
}
}
input[j] = '\0';
*rval = (char *)input;
*rval_len = j;
return changed;
}
/* removeComments */
static int msre_fn_removeComments_execute(apr_pool_t *mptmp, unsigned char *input,
long int input_len, char **rval, long int *rval_len)
{
long int i, j, incomment;
int changed = 0;
i = j = incomment = 0;
while(i < input_len) {
if (incomment == 0) {
if ((input[i] == '/')&&(i + 1 < input_len)&&(input[i + 1] == '*')) {
changed = 1;
incomment = 1;
i += 2;
} else if ((input[i] == '-')&&(i + 1 < input_len)&&(input[i + 1] == '-')) {
changed = 1;
input[i] = ' ';
break;
i += 2;
} else if (input[i] == '#') {
changed = 1;
input[i] = ' ';
break;
i++;
} else {
input[j] = input[i];
i++;
j++;
}
} else {
if ((input[i] == '*')&&(i + 1 < input_len)&&(input[i + 1] == '/')) {
incomment = 0;
i += 2;
input[j] = input[i];
i++;
j++;
} else {
i++;
}
}
}
if (incomment) {
input[j++] = ' ';
}
*rval = (char *)input;
*rval_len = j;
return changed;
}
/* replaceComments */
static int msre_fn_replaceComments_execute(apr_pool_t *mptmp, unsigned char *input,
@ -810,6 +899,18 @@ void msre_engine_register_default_tfns(msre_engine *engine) {
msre_fn_replaceNulls_execute
);
/* removeComments */
msre_engine_tfn_register(engine,
"removeComments",
msre_fn_removeComments_execute
);
/* removeCommentsChar */
msre_engine_tfn_register(engine,
"removeCommentsChar",
msre_fn_removeCommentsChar_execute
);
/* replaceComments */
msre_engine_tfn_register(engine,
"replaceComments",