mirror of https://github.com/sipwise/sems.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
442 lines
8.0 KiB
442 lines
8.0 KiB
/*
|
|
* $Id: parse_uri.cpp 1714 2010-03-30 14:47:36Z rco $
|
|
*
|
|
* Copyright (C) 2007 Raphael Coeffic
|
|
*
|
|
* This file is part of SEMS, a free SIP media server.
|
|
*
|
|
* SEMS is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version. This program is released under
|
|
* the GPL with the additional exemption that compiling, linking,
|
|
* and/or using OpenSSL is allowed.
|
|
*
|
|
* For a license to use the SEMS software under conditions
|
|
* other than those described here, or to purchase support for this
|
|
* software, please contact iptel.org by e-mail at the following addresses:
|
|
* info@iptel.org
|
|
*
|
|
* SEMS is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
|
|
#include "parse_common.h"
|
|
#include "parse_uri.h"
|
|
#include "log.h"
|
|
|
|
sip_uri::sip_uri()
|
|
: scheme(UNKNOWN),
|
|
port(0),
|
|
trsp(NULL)
|
|
{
|
|
}
|
|
|
|
sip_uri::~sip_uri()
|
|
{
|
|
list<sip_avp*>::iterator it;
|
|
|
|
for(it = params.begin();
|
|
it != params.end(); ++it) {
|
|
|
|
delete *it;
|
|
}
|
|
|
|
for(it = hdrs.begin();
|
|
it != hdrs.end(); ++it) {
|
|
|
|
delete *it;
|
|
}
|
|
}
|
|
|
|
|
|
static int parse_sip_uri(sip_uri* uri, const char* beg, int len)
|
|
{
|
|
enum {
|
|
URI_USER=0,
|
|
URI_PW,
|
|
URI_HOST,
|
|
URI_HOST_V6,
|
|
URI_PORT,
|
|
URI_PNAME,
|
|
URI_PVALUE,
|
|
URI_HNAME,
|
|
URI_HVALUE
|
|
};
|
|
|
|
int st = URI_HOST;
|
|
const char* c = beg;
|
|
//int escaped = 0;
|
|
|
|
cstring tmp1, tmp2;
|
|
|
|
// Search for '@', so that we can decide
|
|
// wether to start in URI_USER or URI_HOST state.
|
|
// This is not very efficient, but it makes the
|
|
// parser much easier!
|
|
|
|
for(;c!=beg+len;c++){
|
|
// user part present in URI
|
|
if(*c == '@') {
|
|
st = URI_USER;
|
|
}
|
|
}
|
|
|
|
if(st == URI_USER) {
|
|
uri->user.s = beg;
|
|
}
|
|
else {
|
|
uri->host.s = beg;
|
|
}
|
|
|
|
c = beg;
|
|
|
|
|
|
for(;c!=beg+len;c++){
|
|
|
|
switch(*c){
|
|
|
|
case HCOLON:
|
|
switch(st){
|
|
|
|
case URI_USER:
|
|
uri->user.len = c - uri->user.s;
|
|
if(!uri->user.len){
|
|
DBG("Password given for empty user!\n");
|
|
return MALFORMED_URI;
|
|
}
|
|
uri->passwd.s = c+1;
|
|
st = URI_PW;
|
|
break;
|
|
|
|
case URI_HOST:
|
|
uri->host.len = c - uri->host.s;
|
|
if(!uri->host.len){
|
|
DBG("Empty host part\n");
|
|
return MALFORMED_URI;
|
|
}
|
|
uri->port_str.s = c+1;
|
|
st = URI_PORT;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case '@':
|
|
switch(st){
|
|
|
|
case URI_USER:
|
|
uri->user.len = c - uri->user.s;
|
|
st = URI_HOST;
|
|
uri->host.set(c+1,0);
|
|
break;
|
|
|
|
case URI_PW:
|
|
uri->passwd.len = c - uri->passwd.s;
|
|
st = URI_HOST;
|
|
uri->host.set(c+1,0);
|
|
break;
|
|
|
|
default:
|
|
DBG("Illegal char '@' in non-user part\n");
|
|
return MALFORMED_URI;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case ';':
|
|
switch(st){
|
|
case URI_HOST:
|
|
uri->host.len = c - uri->host.s;
|
|
st = URI_PNAME;
|
|
tmp1.set(c+1,0);
|
|
break;
|
|
|
|
case URI_PORT:
|
|
uri->port_str.len = c - uri->port_str.s;
|
|
st = URI_PNAME;
|
|
tmp1.set(c+1,0);
|
|
break;
|
|
|
|
case URI_PNAME:
|
|
//DBG("Empty URI parameter\n");
|
|
//return MALFORMED_URI;
|
|
tmp1.len = c - tmp1.s;
|
|
uri->params.push_back(new sip_avp(tmp1,cstring(0,0)));
|
|
tmp1.s = c+1;
|
|
break;
|
|
|
|
case URI_PVALUE:
|
|
tmp2.len = c - tmp2.s;
|
|
uri->params.push_back(new sip_avp(tmp1,tmp2));
|
|
|
|
//DBG("uri param: \"%.*s\"=\"%.*s\"\n",
|
|
// tmp1.len, tmp1.s,
|
|
// tmp2.len, tmp2.s);
|
|
|
|
tmp1.s = c+1;
|
|
st = URI_PNAME;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case '?':
|
|
switch(st){
|
|
|
|
case URI_HOST:
|
|
uri->host.len = c - uri->host.s;
|
|
st = URI_HNAME;
|
|
tmp1.s = c+1;
|
|
break;
|
|
|
|
case URI_PORT:
|
|
uri->port_str.len = c - uri->port_str.s;
|
|
st = URI_HNAME;
|
|
tmp1.s = c+1;
|
|
break;
|
|
|
|
case URI_PNAME:
|
|
// DBG("Empty URI parameter\n");
|
|
// return MALFORMED_URI;
|
|
tmp1.len = c - tmp1.s;
|
|
uri->params.push_back(new sip_avp(tmp1,cstring(0,0)));
|
|
tmp1.s = c+1;
|
|
break;
|
|
|
|
case URI_PVALUE:
|
|
tmp2.len = c - tmp2.s;
|
|
uri->params.push_back(new sip_avp(tmp1,tmp2));
|
|
|
|
//DBG("uri param: \"%.*s\"=\"%.*s\"\n",
|
|
// tmp1.len, tmp1.s,
|
|
// tmp2.len, tmp2.s);
|
|
|
|
tmp1.s = c+1;
|
|
st = URI_HNAME;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case '=':
|
|
switch(st){
|
|
case URI_PNAME:
|
|
case URI_HNAME:
|
|
tmp1.len = c - tmp1.s;
|
|
if(!tmp1.len){
|
|
DBG("Empty param/header name\n");
|
|
return MALFORMED_URI;
|
|
}
|
|
tmp2.s = c+1;
|
|
st++;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case '&':
|
|
switch(st){
|
|
case URI_HNAME:
|
|
DBG("Empty URI header\n");
|
|
return MALFORMED_URI;
|
|
|
|
case URI_HVALUE:
|
|
tmp2.len = c - tmp2.s;
|
|
uri->hdrs.push_back(new sip_avp(tmp1,tmp2));
|
|
|
|
//DBG("uri hdr: \"%.*s\"=\"%.*s\"\n",
|
|
// tmp1.len, tmp1.s,
|
|
// tmp2.len, tmp2.s);
|
|
|
|
tmp1.s = c+1;
|
|
st = URI_HNAME;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case '[':
|
|
switch(st){
|
|
case URI_HOST:
|
|
st = URI_HOST_V6;
|
|
break;
|
|
}
|
|
break;
|
|
case ']':
|
|
switch(st){
|
|
case URI_HOST_V6:
|
|
st = URI_HOST;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
switch(st){
|
|
|
|
case URI_USER:
|
|
case URI_PW:
|
|
DBG("Missing host part\n");
|
|
return MALFORMED_URI;
|
|
|
|
case URI_HOST:
|
|
uri->host.len = c - uri->host.s;
|
|
if(!uri->host.len){
|
|
DBG("Missing host part\n");
|
|
return MALFORMED_URI;
|
|
}
|
|
break;
|
|
|
|
case URI_PORT:
|
|
uri->port_str.len = c - uri->port_str.s;
|
|
break;
|
|
|
|
case URI_PNAME:
|
|
//DBG("Empty URI parameter\n");
|
|
//return MALFORMED_URI;
|
|
|
|
tmp1.len = c - tmp1.s;
|
|
uri->params.push_back(new sip_avp(tmp1,cstring(0,0)));
|
|
break;
|
|
|
|
case URI_PVALUE:
|
|
tmp2.len = c - tmp2.s;
|
|
uri->params.push_back(new sip_avp(tmp1,tmp2));
|
|
|
|
//DBG("uri param: \"%.*s\"=\"%.*s\"\n",
|
|
// tmp1.len, tmp1.s,
|
|
// tmp2.len, tmp2.s);
|
|
break;
|
|
|
|
case URI_HNAME:
|
|
DBG("Empty URI header\n");
|
|
return MALFORMED_URI;
|
|
|
|
case URI_HVALUE:
|
|
tmp2.len = c - tmp2.s;
|
|
uri->hdrs.push_back(new sip_avp(tmp1,tmp2));
|
|
|
|
//DBG("uri hdr: \"%.*s\"=\"%.*s\"\n",
|
|
// tmp1.len, tmp1.s,
|
|
// tmp2.len, tmp2.s);
|
|
break;
|
|
}
|
|
|
|
if(uri->port_str.len){
|
|
uri->port = 0;
|
|
for(unsigned int i=0; i<uri->port_str.len; i++){
|
|
uri->port = uri->port*10 + (uri->port_str.s[i] - '0');
|
|
}
|
|
}
|
|
else {
|
|
uri->port = 5060;
|
|
}
|
|
|
|
DBG("Converted URI port (%.*s) to int (%i)\n",
|
|
uri->port_str.len,uri->port_str.s,uri->port);
|
|
|
|
for(list<sip_avp*>::iterator it = uri->params.begin();
|
|
it != uri->params.end(); it++) {
|
|
|
|
if(!lower_cmp_n((*it)->name.s,(*it)->name.len,
|
|
"transport",9)) {
|
|
uri->trsp = *it;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int parse_uri(sip_uri* uri, const char* beg, int len)
|
|
{
|
|
enum {
|
|
URI_BEG=0,
|
|
SIP_S, // Sip
|
|
SIP_I, // sIp
|
|
SIP_P, // siP
|
|
SIPS_S // sipS
|
|
};
|
|
|
|
int st = URI_BEG;
|
|
const char* c = beg;
|
|
|
|
for(;c!=beg+len;c++){
|
|
switch(st){
|
|
case URI_BEG:
|
|
switch(*c){
|
|
case 's':
|
|
case 'S':
|
|
st = SIP_S;
|
|
continue;
|
|
default:
|
|
DBG("Unknown URI scheme\n");
|
|
return MALFORMED_URI;
|
|
}
|
|
break;
|
|
case SIP_S:
|
|
switch(*c){
|
|
case 'i':
|
|
case 'I':
|
|
st = SIP_I;
|
|
continue;
|
|
default:
|
|
DBG("Unknown URI scheme\n");
|
|
return MALFORMED_URI;
|
|
}
|
|
break;
|
|
case SIP_I:
|
|
switch(*c){
|
|
case 'p':
|
|
case 'P':
|
|
st = SIP_P;
|
|
continue;
|
|
default:
|
|
DBG("Unknown URI scheme\n");
|
|
return MALFORMED_URI;
|
|
}
|
|
break;
|
|
case SIP_P:
|
|
switch(*c){
|
|
case HCOLON:
|
|
//DBG("scheme: sip\n");
|
|
uri->scheme = sip_uri::SIP;
|
|
return parse_sip_uri(uri,c+1,len-(c+1-beg));
|
|
case 's':
|
|
case 'S':
|
|
st = SIPS_S;
|
|
continue;
|
|
default:
|
|
DBG("Unknown URI scheme\n");
|
|
return MALFORMED_URI;
|
|
}
|
|
break;
|
|
case SIPS_S:
|
|
switch(*c){
|
|
case HCOLON:
|
|
//DBG("scheme: sips\n");
|
|
uri->scheme = sip_uri::SIPS;
|
|
return parse_sip_uri(uri,c+1,len-(c+1-beg));
|
|
default:
|
|
DBG("Unknown URI scheme\n");
|
|
return MALFORMED_URI;
|
|
}
|
|
break;
|
|
default:
|
|
DBG("bug: unknown state\n");
|
|
return UNDEFINED_ERR;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/** EMACS **
|
|
* Local variables:
|
|
* mode: c++
|
|
* c-basic-offset: 4
|
|
* End:
|
|
*/
|