#include "router.h"
int user_table_load(router_t r) {
char *userfile;
FILE *f;
long size;
char *buf;
nad_cache_t cache;
nad_t nad;
int nusers, user, name, secret;
log_debug(ZONE, "loading user table");
if(r->users != NULL)
xhash_free(r->users);
r->users = xhash_new(51);
userfile = config_get_one(r->config, "local.users", 0);
if(userfile == NULL)
userfile = CONFIG_DIR "/router-users.xml";
f = fopen(userfile, "r");
if(f == NULL) {
log_write(r->log, LOG_ERR, "couldn't open user table file %s: %s", userfile, strerror(errno));
return 1;
}
fseek(f, 0, SEEK_END);
size = ftell(f);
fseek(f, 0, SEEK_SET);
buf = (char *) malloc(sizeof(char) * size);
fread(buf, 1, size, f);
if(ferror(f)) {
log_write(r->log, LOG_ERR, "couldn't read from user table file: %s", strerror(errno));
free(buf);
fclose(f);
return 1;
}
fclose(f);
cache = nad_cache_new();
nad = nad_parse(cache, buf, size);
if(nad == NULL) {
log_write(r->log, LOG_ERR, "couldn't parse user table");
free(buf);
nad_cache_free(cache);
return 1;
}
free(buf);
nusers = 0;
user = nad_find_elem(nad, 0, -1, "user", 1);
while(user >= 0) {
name = nad_find_elem(nad, user, -1, "name", 1);
secret = nad_find_elem(nad, user, -1, "secret", 1);
if(name < 0 || secret < 0 || NAD_CDATA_L(nad, name) <= 0 || NAD_CDATA_L(nad, secret) <= 0) {
log_write(r->log, LOG_ERR, "malformed user entry in user table file, skipping");
continue;
}
log_debug(ZONE, "remembering user '%.*s'", NAD_CDATA_L(nad, name), NAD_CDATA(nad, name));
xhash_put(r->users, pstrdupx(xhash_pool(r->users), NAD_CDATA(nad, name), NAD_CDATA_L(nad, name)), pstrdupx(xhash_pool(r->users), NAD_CDATA(nad, secret), NAD_CDATA_L(nad, secret)));
nusers++;
user = nad_find_elem(nad, user, -1, "user", 0);
}
nad_free(nad);
nad_cache_free(cache);
log_write(r->log, LOG_NOTICE, "loaded user table (%d users)", nusers);
r->users_load = time(NULL);
return 0;
}
void user_table_unload(router_t r) {
if(r->users != NULL)
xhash_free(r->users);
return;
}