net.sourceforge.peers.sip.syntaxencoding.SipURI Maven / Gradle / Ivy
/*
This file is part of Peers, a java SIP softphone.
This program 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 3 of the License, or
any later version.
This program 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, see .
Copyright 2007, 2008, 2009, 2010 Yohann Martineau
*/
package net.sourceforge.peers.sip.syntaxencoding;
import java.util.Hashtable;
import net.sourceforge.peers.sip.RFC3261;
public class SipURI {
public final static int DEFAULT_PORT = -1;
private String stringRepresentation;
/**
* telephone-subscriber and optional port are not managed
*/
private String userinfo;
private String host;
private int port = DEFAULT_PORT;
/**
* Use empty strings in value if the parameter has no value
*/
private Hashtable uriParameters;
//headers not implemented
//private Hashtable headers;
public SipURI(String sipUri)
throws SipUriSyntaxException {
stringRepresentation = sipUri;
StringBuffer buf = new StringBuffer(sipUri);
String scheme = RFC3261.SIP_SCHEME + RFC3261.SCHEME_SEPARATOR;
if (!sipUri.startsWith(scheme)) {
throw new SipUriSyntaxException("SIP URI must start with " + scheme);
}
buf.delete(0, scheme.length());
int atPos = buf.indexOf("@");
if (atPos == 0) {
throw new SipUriSyntaxException("userinfo cannot start with a '@'");
}
if (atPos > 0) {
userinfo = buf.substring(0, atPos);
buf.delete(0, atPos + 1);
}
int endHostport = buf.indexOf(";");
if (endHostport == 0) {
throw new SipUriSyntaxException("hostport not present or it cannot start with ';'");
}
if (endHostport < 0) {
endHostport = buf.length();
}
String hostport = buf.substring(0, endHostport);
buf.delete(0, endHostport);
int colonPos = hostport.indexOf(':');
if (colonPos > -1) {
if (colonPos == hostport.length() - 1) {
throw new SipUriSyntaxException("hostport cannot terminate with a ':'");
}
port = Integer.parseInt(hostport.substring(colonPos + 1));
} else {
colonPos = hostport.length();
}
host = hostport.substring(0, colonPos);
if (buf.length() == 1) {
//if there is only one ';' at the end of the uri => do not
//parse uri-parameters and headers
buf.deleteCharAt(0);
}
if (buf.length() <= 0) {
return;
}
uriParameters = new Hashtable();
while (buf.length() > 0) {
buf.deleteCharAt(0);//delete the first ';'
int nextSemicolon = buf.indexOf(";");
if (nextSemicolon < 0) {
nextSemicolon = buf.length();
}
int nextEquals = buf.indexOf("=");
if (nextEquals < 0) {
nextEquals = nextSemicolon;
}
if (nextEquals > nextSemicolon) {
nextEquals = nextSemicolon;
}
int afterEquals;
if (nextEquals + 1 > nextSemicolon) {
afterEquals = nextSemicolon;
} else {
afterEquals = nextEquals + 1;
}
uriParameters.put(buf.substring(0, nextEquals), buf.substring(afterEquals, nextSemicolon));
buf.delete(0, nextSemicolon);
}
}
@Override
public String toString() {
return stringRepresentation;
}
public String getHost() {
return host;
}
public int getPort() {
return port;
}
public Hashtable getUriParameters() {
return uriParameters;
}
public String getUserinfo() {
return userinfo;
}
}
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