+++ /dev/null
-/*
- cgi.c - Some simple routines for cgi programming
- Copyright (c) 1996-8 Martin Schulze <joey@infodrom.north.de>
-
- 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-#include "cgi.h"
-
-int cgiDebugLevel = 0;
-int cgiDebugStderr = 1;
-
-void cgiHeader ()
-{
- printf ("Content-type: text/html\n\n");
-}
-
-void cgiDebug (int level, int where)
-{
- if (level > 0)
- cgiDebugLevel = level;
- else
- cgiDebugLevel = 0;
- if (where)
- cgiDebugStderr = 0;
- else
- cgiDebugStderr = 1;
-}
-
-char *cgiDecodeString (char *text)
-{
- char *cp, *xp;
-
- for (cp=text,xp=text; *cp; cp++) {
- if (*cp == '%') {
- if (strchr("0123456789ABCDEFabcdef", *(cp+1))
- && strchr("0123456789ABCDEFabcdef", *(cp+2))) {
- if (islower((unsigned int)*(cp+1)))
- *(cp+1) = toupper((unsigned int)*(cp+1));
- if (islower((unsigned int)*(cp+2)))
- *(cp+2) = toupper((unsigned int)*(cp+2));
- *(xp) = (*(cp+1) >= 'A' ? *(cp+1) - 'A' + 10 : *(cp+1) - '0' ) * 16
- + (*(cp+2) >= 'A' ? *(cp+2) - 'A' + 10 : *(cp+2) - '0');
- xp++;cp+=2;
- }
- } else {
- *(xp++) = *cp;
- }
- }
- memset(xp, 0, cp-xp);
- return text;
-}
-
-/* cgiInit()
- *
- * Read from stdin if no string is provided via CGI. Variables that
- * doesn't have a value associated with it doesn't get stored.
- */
-s_cgi **cgiInit ()
-{
- int length;
- char *line = NULL;
- int numargs;
- char *cp, *ip, *esp, *sptr;
- s_cgi **result;
- int i, k;
- char tmp[101];
-
- cp = getenv("REQUEST_METHOD");
- ip = getenv("CONTENT_LENGTH");
-
- if (cp && !strcmp(cp, "POST")) {
- if (ip) {
- length = atoi(ip);
- if ((line = (char *)malloc (length+2)) == NULL)
- return NULL;
- fgets(line, length+1, stdin);
- } else
- return NULL;
- } else if (cp && !strcmp(cp, "GET")) {
- esp = getenv("QUERY_STRING");
- if (esp && strlen(esp)) {
- if ((line = (char *)malloc (strlen(esp)+2)) == NULL)
- return NULL;
- sprintf (line, "%s", esp);
- } else
- return NULL;
- } else {
- length = 0;
- printf ("(offline mode: enter name=value pairs on standard input)\n");
- for (cp = fgets(tmp, 100, stdin); cp != NULL;
- cp = fgets(tmp, 100, stdin) ) {
- if (strlen(tmp)) {
- length += strlen(tmp);
- if ((ip = (char *)malloc ((length+1) * sizeof(char))) == NULL)
- return NULL;
- memset(ip,0, length);
- if (line) {
- if (line[strlen(line)-1] == '\n')
- line[strlen(line)-1] = '&';
- strcpy(ip, line);
- }
- ip = strcat(ip, tmp);
- if (line)
- free (line);
- line = ip;
- }
- }
- if (!line)
- return NULL;
- if (line[strlen(line)-1] == '\n')
- line[strlen(line)-1] = '\0';
- }
-
- /*
- * From now on all cgi variables are stored in the variable line
- * and look like foo=bar&foobar=barfoo&foofoo=
- */
-
- if (cgiDebugLevel > 0) {
- if (cgiDebugStderr) {
- fprintf (stderr, "Received cgi input: %s\n", line);
- } else {
- printf ("<b>Received cgi input</b><br>\n<pre>\n--\n%s\n--\n</pre>\n\n", line);
- }
- }
- for (cp=line; *cp; cp++) {
- if (*cp == '+') {
- *cp = ' ';
- }
- }
- if (strlen(line)) {
- for (numargs=1,cp=line; *cp; cp++) {
- if (*cp == '&') numargs++;
- }
- } else {
- numargs = 0;
- }
- if (cgiDebugLevel > 0) {
- if (cgiDebugStderr) {
- fprintf (stderr, "%d cgi variables found.\n", numargs);
- } else {
- printf ("%d cgi variables found.<br>\n", numargs);
- }
- }
- if ((result = (s_cgi **)malloc((numargs+1) * sizeof(s_cgi *))) == NULL) {
- return NULL;
- }
-
- memset (result, 0, (numargs+1) * sizeof(s_cgi *));
-
- cp = line;
- i=0;
- while (*cp) {
- if ((ip = (char *)strchr(cp, '&')) != NULL) {
- *ip = '\0';
- }else {
- ip = cp + strlen(cp);
- }
-
- if ((esp=(char *)strchr(cp, '=')) == NULL) {
- cp = ++ip;
- continue;
- }
-
- if (!strlen(esp)) {
- cp = ++ip;
- continue;
- }
-
- if (i<numargs) {
-
- for (k=0; k<i && (strncmp(result[k]->name,cp, esp-cp)); k++);
- /* try to find out if there's already such a variable */
- if (k == i) { /* No such variable yet */
- if ((result[i] = (s_cgi *)malloc(sizeof(s_cgi))) == NULL)
- return NULL;
- if ((result[i]->name = (char *)malloc((esp-cp+1) * sizeof(char))) == NULL)
- return NULL;
- memset (result[i]->name, 0, esp-cp+1);
- strncpy(result[i]->name, cp, esp-cp);
- cp = ++esp;
- if ((result[i]->value = (char *)malloc((ip-esp+1) * sizeof(char))) == NULL)
- return NULL;
- memset (result[i]->value, 0, ip-esp+1);
- strncpy(result[i]->value, cp, ip-esp);
- result[i]->value = cgiDecodeString(result[i]->value);
- if (cgiDebugLevel) {
- if (cgiDebugStderr)
- fprintf (stderr, "%s: %s\n", result[i]->name, result[i]->value);
- else
- printf ("<h3>Variable %s</h3>\n<pre>\n%s\n</pre>\n\n", result[i]->name, result[i]->value);
- }
- i++;
- } else { /* There is already such a name, suppose a mutiple field */
- if ((sptr = (char *)malloc((strlen(result[k]->value)+(ip-esp)+2)* sizeof(char))) == NULL)
- return NULL;
- memset (sptr, 0, strlen(result[k]->value)+(ip-esp)+2);
- sprintf (sptr, "%s\n", result[k]->value);
- cp = ++esp;
- strncat(sptr, cp, ip-esp);
- free(result[k]->value);
- result[k]->value = sptr;
- }
- }
- cp = ++ip;
- }
- return result;
-}
-
-char *cgiGetValue(s_cgi **parms, const char *var)
-{
- int i;
-
- if (parms) {
- for (i=0;parms[i]; i++) {
- if (!strcmp(var,parms[i]->name)) {
- if (cgiDebugLevel > 0) {
- if (cgiDebugStderr) {
- fprintf (stderr, "%s found as %s\n", var, parms[i]->value);
- } else {
- printf ("%s found as %s<br>\n", var, parms[i]->value);
- }
- }
- return parms[i]->value;
- }
- }
- }
- if (cgiDebugLevel) {
- if (cgiDebugStderr) {
- fprintf (stderr, "%s not found\n", var);
- } else {
- printf ("%s not found<br>\n", var);
- }
- }
- return NULL;
-}
-
-void cgiRedirect (const char *url)
-{
- if (url && strlen(url)) {
- printf ("Content-type: text/html\nContent-length: %d\n", 77+(strlen(url)*2));
- printf ("Status: 302 Temporal Relocation\n");
- printf ("Location: %s\n\n", url);
- printf ("<html>\n<body>\nThe page has been moved to <a href=\"%s\">%s</a>\n</body>\n</html>\n", url, url);
- }
-}
-
-/*
- * Local variables:
- * c-indent-level: 4
- * c-basic-offset: 4
- * tab-width: 8
- * End:
- */
projects / rrdtool.git / blobdiff