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base_format.c

/* --------------------------------------------------------------------------
 *
 * License
 *
 * The contents of this file are subject to the Jabber Open Source License
 * Version 1.0 (the "JOSL").  You may not copy or use this file, in either
 * source code or executable form, except in compliance with the JOSL. You
 * may obtain a copy of the JOSL at http://www.jabber.org/ or at
 * http://www.opensource.org/.  
 *
 * Software distributed under the JOSL is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the JOSL
 * for the specific language governing rights and limitations under the
 * JOSL.
 *
 * Copyrights
 * 
 * Portions created by or assigned to Jabber.com, Inc. are 
 * Copyright (c) 1999-2002 Jabber.com, Inc.  All Rights Reserved.  Contact
 * information for Jabber.com, Inc. is available at http://www.jabber.com/.
 *
 * Portions Copyright (c) 1998-1999 Jeremie Miller.
 * 
 * Acknowledgements
 * 
 * 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
 * the provisions of the GPL are applicable instead of those above.  If you
 * wish to allow use of your version of this file only under the terms of the
 * GPL and not to allow others to use your version of this file under the JOSL,
 * indicate your decision by deleting the provisions above and replace them
 * with the notice and other provisions required by the GPL.  If you do not
 * delete the provisions above, a recipient may use your version of this file
 * under either the JOSL or the GPL. 
 * 
 * 
 * --------------------------------------------------------------------------*/

#include "jabberd.h"

result base_format_modify(instance id, dpacket p, void *arg)
{
    char  *cur, *nxt, *f;
    pool  sp;
    spool log_result;

    if(id == NULL || p == NULL) 
        return r_ERR;

    /*  base format params:
        %h: host
        %t: type
        %d: date
        %s: body
    */

    sp=pool_new();

    f = pstrdup(sp, (char*)arg);
    log_result = spool_new(sp);

    cur = f;
    nxt = strchr(f, '%');
    
    if(nxt == NULL)
        spooler(log_result, f, log_result);
    
    while(nxt != NULL)
    {
        nxt[0] = '\0'; 
        
        if(cur != nxt)
            spooler(log_result, cur, log_result);
        
        nxt++;
        
        switch(nxt[0])
        {
        case 'h':
            spooler(log_result, xmlnode_get_attrib(p->x, "from"), log_result);
            break;
        case 't':
            spooler(log_result, xmlnode_get_attrib(p->x, "type"), log_result);
            break;
        case 'd':
            spooler(log_result, jutil_timestamp(), log_result);
            break;
        case 's':
            spooler(log_result, xmlnode_get_data(p->x), log_result);
            break;
        default:
            log_debug(ZONE, "Invalid argument: %s", nxt[0]);
        }
        
        cur = ++nxt;
        nxt = strchr(cur, '%');
    }

    xmlnode_hide(xmlnode_get_firstchild(p->x));
    xmlnode_insert_cdata(p->x, spool_print(log_result), -1);

    pool_free(sp);
    return r_PASS;
}

result base_format_config(instance id, xmlnode x, void *arg)
{
    if(id == NULL)
    {
        log_debug(ZONE,"base_format_config validating configuration");
        if(xmlnode_get_data(x) == NULL)
        {
            log_debug(ZONE,"base_format invald format");
            xmlnode_put_attrib(x, "error", "'format' tag must contain a format string:\nUse %h to insert Hostname\nUse %t to insert Type of Log (notice,warn,alert)\nUse %d to insert Timestamp\nUse %s to insert the body of the message\n\nExample: '[%t] - %h - %d: %s'");
            return r_ERR;
        }
        return r_PASS;
    }
    
    log_debug(ZONE,"base_format configuring instance %s ", id->id);

    if(id->type != p_LOG)
    {
        log_alert(NULL, "ERROR in instance %s: <format>..</format> element only allowed in log sections", id->id);
        return r_ERR;
    }

    register_phandler(id, o_PREDELIVER, base_format_modify, (void*)xmlnode_get_data(x));

    return r_DONE;
}

void base_format(void)
{
    log_debug(ZONE,"base_format loading...");
    register_config("format",base_format_config,NULL);
}

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