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153 lines
3.8 KiB
153 lines
3.8 KiB
/*
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* $Id$
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*
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* presence module - presence server implementation
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*
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* Copyright (C) 2006 Voice Sistem S.R.L.
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*
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* This file is part of Kamailio, a free SIP server.
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*
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* Kamailio is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version
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*
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* Kamailio is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* History:
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* --------
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* 2006-08-15 initial version (Anca Vamanu)
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*/
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/*! \file
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* \brief Kamailio presence module :: Utilities
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* \ingroup presence
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include "../../mem/mem.h"
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#include "../../dprint.h"
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#include "../../ut.h"
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#include "../../data_lump_rpl.h"
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#include "utils_func.h"
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#include "event_list.h"
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#include "presence.h"
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static const char base64digits[] =
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"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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#define BAD -1
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static const char base64val[] = {
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BAD,BAD,BAD,BAD, BAD,BAD,BAD,BAD, BAD,BAD,BAD,BAD, BAD,BAD,BAD,BAD,
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BAD,BAD,BAD,BAD, BAD,BAD,BAD,BAD, BAD,BAD,BAD,BAD, BAD,BAD,BAD,BAD,
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BAD,BAD,BAD,BAD, BAD,BAD,BAD,BAD, BAD,BAD,BAD, 62, BAD,BAD,BAD, 63,
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52, 53, 54, 55, 56, 57, 58, 59, 60, 61,BAD,BAD, BAD,BAD,BAD,BAD,
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BAD, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
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15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,BAD, BAD,BAD,BAD,BAD,
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BAD, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
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41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,BAD, BAD,BAD,BAD,BAD
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};
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#define DECODE64(c) (isascii(c) ? base64val[c] : BAD)
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void to64frombits(unsigned char *out, const unsigned char *in, int inlen)
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{
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for (; inlen >= 3; inlen -= 3)
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{
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*out++ = base64digits[in[0] >> 2];
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*out++ = base64digits[((in[0] << 4) & 0x30) | (in[1] >> 4)];
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*out++ = base64digits[((in[1] << 2) & 0x3c) | (in[2] >> 6)];
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*out++ = base64digits[in[2] & 0x3f];
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in += 3;
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}
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if (inlen > 0)
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{
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unsigned char fragment;
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*out++ = base64digits[in[0] >> 2];
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fragment = (in[0] << 4) & 0x30;
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if (inlen > 1)
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fragment |= in[1] >> 4;
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*out++ = base64digits[fragment];
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*out++ = (inlen < 2) ? '=' : base64digits[(in[1] << 2) & 0x3c];
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*out++ = '=';
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}
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*out = '\0';
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}
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int a_to_i (char *s,int len)
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{
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int n = 0, i= 0;
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while( i<len )
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n=n*10+( s[i++] -'0');
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return n;
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}
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int send_error_reply(struct sip_msg* msg, int reply_code, str reply_str)
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{
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if(reply_code== BAD_EVENT_CODE)
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{
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str hdr_append;
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char buffer[256];
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int i;
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pres_ev_t* ev= EvList->events;
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hdr_append.s = buffer;
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hdr_append.s[0]='\0';
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hdr_append.len = sprintf(hdr_append.s, "Allow-Events: ");
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if(hdr_append.len < 0)
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{
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LM_ERR("unsuccessful sprintf\n");
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return -1;
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}
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for(i= 0; i< EvList->ev_count; i++)
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{
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if(i> 0)
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{
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memcpy(hdr_append.s+ hdr_append.len, ", ", 2);
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hdr_append.len+= 2;
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}
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memcpy(hdr_append.s+ hdr_append.len, ev->name.s, ev->name.len );
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hdr_append.len+= ev->name.len ;
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ev= ev->next;
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}
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memcpy(hdr_append.s+ hdr_append.len, CRLF, CRLF_LEN);
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hdr_append.len+= CRLF_LEN;
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hdr_append.s[hdr_append.len]= '\0';
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if (add_lump_rpl( msg, hdr_append.s, hdr_append.len, LUMP_RPL_HDR)==0 )
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{
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LM_ERR("unable to add lump_rl\n");
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return -1;
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}
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}
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if (slb.freply(msg, reply_code, &reply_str) < 0)
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{
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LM_ERR("sending %d %.*s reply\n", reply_code, reply_str.len,
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reply_str.s);
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return -1;
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}
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return 0;
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}
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