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/*
Unix SMB/Netbios implementation.
Version 1.9.
some simple CGI helper routines
Copyright (C) Andrew Tridgell 1997
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#define MAX_VARIABLES 512
struct var {
char *name;
char *value;
};
static struct var variables[MAX_VARIABLES];
static int num_variables;
static int grab_line(int *cl, char *line, int maxsize)
{
int i = 0;
while ((*cl)) {
int c = fgetc(stdin);
(*cl)--;
if (c == EOF) {
(*cl) = 0;
break;
}
if (c == '+') {
c = ' ';
}
if (c == '\r') continue;
if (strchr("\n&", c)) break;
if (c == '%' && (*cl) >= 2) {
int c1, c2;
c1 = fgetc(stdin);
c2 = fgetc(stdin);
(*cl) -= 2;
if (c1 == EOF || c2 == EOF) break;
if (c1 >= '0' && c1 <= '9')
c1 = c1 - '0';
else if (c1 >= 'A' && c1 <= 'F')
c1 = 10 + c1 - 'A';
else if (c1 >= 'a' && c1 <= 'f')
c1 = 10 + c1 - 'a';
else break;
if (c2 >= '0' && c2 <= '9')
c2 = c2 - '0';
else if (c2 >= 'A' && c2 <= 'F')
c2 = 10 + c2 - 'A';
else if (c2 >= 'a' && c2 <= 'f')
c2 = 10 + c2 - 'a';
else break;
c = (c1<<4) | c2;
}
line[i++] = c;
if (i == maxsize) break;
}
/* now unescape the line */
line[i] = 0;
return 1;
}
/***************************************************************************
load all the variables passed to the CGI program
***************************************************************************/
void cgi_load_variables(void)
{
static pstring line;
char *p;
int len;
if (!(p=getenv("CONTENT_LENGTH"))) return;
len = atoi(p);
if (len <= 0) return;
while (len && grab_line(&len, line, sizeof(line)-1)) {
p = strchr(line,'=');
if (!p) continue;
*p = 0;
variables[num_variables].name = strdup(line);
variables[num_variables].value = strdup(p+1);
if (!variables[num_variables].name ||
!variables[num_variables].value)
continue;
#if 0
printf("%s=%s<br>\n",
variables[num_variables].name,
variables[num_variables].value);
#endif
num_variables++;
if (num_variables == MAX_VARIABLES) break;
}
fclose(stdin);
}
/***************************************************************************
find a variable passed via CGI
***************************************************************************/
char *cgi_variable(char *name)
{
int i;
for (i=0;i<num_variables;i++)
if (strcmp(variables[i].name, name) == 0)
return variables[i].value;
return NULL;
}
/***************************************************************************
return the value of a CGI boolean variable.
***************************************************************************/
int cgi_boolean(char *name, int def)
{
char *p = cgi_variable(name);
if (!p) return def;
return strcmp(p, "1") == 0;
}
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