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// This is a roxen module. Copyright 1996 - 1998, Idonex AB.
// YP User database. Reads the system password database and use it to
// authentificate users.
constant cvs_version = "$Id: ypuserdb.pike,v 1.10 1998/05/23 13:54:34 grubba Exp $";
constant thread_safe=1;
#include <module.h>
inherit "module";
inherit "roxenlib";
#if constant(Yp.Domain)
// import Stdio;
// import Array;
// import Yp;
/*
* Globals
*/
object(Yp.Domain) domain;
/*
* Statistics
*/
int succ, fail, nouser, emptypasswd;
mapping(string:int) failed = ([]);
string status()
{
return("<h1>Security info</h1>\n"
"<b>YP-server:</b> " + domain->server("passwd.byname") + "<br>\n"
"<b>YP-domain:</b> " + default_yp_domain() + "<br>\n"
"<p>\n"
"<b>Successful auths:</b> " + (string)succ +
", " + (string)emptypasswd + " had empty password fields.<br>\n"
"<b>Failed auths:</b> " + (string)fail +
", " + (string)nouser + " had the wrong username.<br>\n"
"<p>\n"
"<h3>Failure by host</h3>" +
(Array.map(indices(failed), lambda(string s) {
return roxen->quick_ip_to_host(s) + ": " + failed[s] + "<br>\n";
}) * "") +
"<p>The database has " + sizeof(domain->all("passwd.byname")) +
" entries.");
}
/*
* Auth functions
*/
array(string) userinfo(string u)
{
if (sizeof(u)) {
string s = domain->match("passwd.byname", u);
if (s) {
return(s/":");
}
}
return(0);
}
array(string) userlist()
{
mapping(string:string) m = domain->all("passwd.byname");
if (m) {
return(indices(m));
}
return(0);
}
string user_from_uid(int u)
{
string s = domain->match("passwd.byuid", (string)u);
if (s) {
return((s/":")[0]);
}
return(0);
}
array|int auth(array(string) auth, object id)
{
array(string) arr = auth[1]/":";
string u, p;
u = arr[0];
if (sizeof(arr) <= 1) {
p = "";
} else {
p = arr[1..]*":";
}
string s = domain->match("passwd.byname", u);
if (!s) {
fail++;
nouser++;
failed[id->remoteaddr]++;
return(({ 0, auth[1], -1 }));
}
arr = s/":";
if ((!sizeof(arr[1])) || crypt(p, arr[1])) {
// Valid user
id->misc->uid = arr[2];
id->misc->gid = arr[3];
id->misc->gecos = arr[4];
id->misc->home = arr[5];
id->misc->shell = arr[6];
succ++;
emptypasswd += !sizeof(arr[1]);
return(({ 1, u, 0 }));
}
fail++;
failed[id->remoteaddr]++;
return(({ 0, auth[1], -1 }));
}
/*
* Registration and initialization
*/
array register_module()
{
return(({ MODULE_AUTH,
"YP (NIS) authorization",
"Experimental module for authorization using "
"Pike's internal YP-database interface.",
({}), 1 }));
}
void start(int i)
{
if (!domain)
domain = Yp.Domain();
}
#endif /* constant(Yp.Domain) */
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