mod_auth_plain.c

AnyQ服务端源代码(2004/10/28)源码

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 * Portions Copyright (c) 1998-1999 Jeremie Miller.
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 * 
 * Special thanks to the Jabber Open Source Contributors for their
 * suggestions and support of Jabber.
 * 
 * Alternatively, the contents of this file may be used under the terms of the
 * GNU General Public License Version 2 or later (the "GPL"), in which case
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 * --------------------------------------------------------------------------*/
#include "jsm.h"

mreturn mod_auth_plain_jane(mapi m, void *arg)
{
    char *pass;

    log_debug("mod_auth_plain","checking");

    if(jpacket_subtype(m->packet) == JPACKET__GET)
    { /* type=get means we flag that the server can do plain-text auth */
        xmlnode_insert_tag(m->packet->iq,"password");
        return M_PASS;
    }

    if((pass = xmlnode_get_tag_data(m->packet->iq, "password")) == NULL)
        return M_PASS;

    /* if there is a password avail, always handle */
    if(m->user->pass != NULL)
    {
        if(strcmp(pass, m->user->pass) != 0)
            jutil_error(m->packet->x, TERROR_AUTH);
        else
            jutil_iqresult(m->packet->x);
        return M_HANDLED;
    }

    log_debug("mod_auth_plain","trying xdb act check");
    /* if the act "check" fails, PASS so that 0k could use the password to try and auth w/ it's data */
    if(xdb_act(m->si->xc, m->user->id, NS_AUTH, "check", NULL, xmlnode_get_tag(m->packet->iq,"password")))
        return M_PASS;

    jutil_iqresult(m->packet->x);
    return M_HANDLED;
}

int mod_auth_plain_reset(mapi m, jid id, xmlnode pass)
{
    log_debug("mod_auth_plain","resetting password");

    xmlnode_put_attrib(pass,"xmlns",NS_AUTH);
    return xdb_set(m->si->xc, id, NS_AUTH, pass);
}

/* handle saving the password for registration */
mreturn mod_auth_plain_reg(mapi m, void *arg)
{
    jid id;
    xmlnode pass;

    if(jpacket_subtype(m->packet) == JPACKET__GET)
    { /* type=get means we flag that the server can do plain-text regs */
        xmlnode_insert_tag(m->packet->iq,"password");
        return M_PASS;
    }

    if(jpacket_subtype(m->packet) != JPACKET__SET || (pass = xmlnode_get_tag(m->packet->iq,"password")) == NULL) return M_PASS;

    /* get the jid of the user, depending on how we were called */
    if(m->user == NULL)
        id = jid_user(m->packet->to);
    else
        id = m->user->id;

    /* tuck away for a rainy day */
    if(mod_auth_plain_reset(m,id,pass))
    {
        jutil_error(m->packet->x,(terror){500,"Password Storage Failed"});
        return M_HANDLED;
    }

    return M_PASS;
}

/* handle password change requests from a session */
mreturn mod_auth_plain_server(mapi m, void *arg)
{
    mreturn ret;

    /* pre-requisites */
    if(m->packet->type != JPACKET_IQ) return M_IGNORE;
    if(m->user == NULL) return M_PASS;
    if(!NSCHECK(m->packet->iq,NS_REGISTER)) return M_PASS;

    /* just do normal reg process, but deliver afterwards */
    ret = mod_auth_plain_reg(m,arg);
    if(ret == M_HANDLED)
        js_deliver(m->si, jpacket_reset(m->packet));

    return ret;
}

void mod_auth_plain(jsmi si)
{
    log_debug("mod_auth_plain","init");

    js_mapi_register(si, e_AUTH, mod_auth_plain_jane, NULL);
    js_mapi_register(si, e_SERVER, mod_auth_plain_server, NULL);
    if (js_config(si,"register") != NULL) js_mapi_register(si, e_REGISTER, mod_auth_plain_reg, NULL);
}