android.gov.nist.javax.sip.parser.ims.SecurityAgreeParser Maven / Gradle / Ivy
/*
* Conditions Of Use
*
* This software was developed by employees of the National Institute of
* Standards and Technology (NIST), an agency of the Federal Government.
* Pursuant to title 15 Untied States Code Section 105, works of NIST
* employees are not subject to copyright protection in the United States
* and are considered to be in the public domain. As a result, a formal
* license is not needed to use the software.
*
* This software is provided by NIST as a service and is expressly
* provided "AS IS." NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED
* OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT
* AND DATA ACCURACY. NIST does not warrant or make any representations
* regarding the use of the software or the results thereof, including but
* not limited to the correctness, accuracy, reliability or usefulness of
* the software.
*
* Permission to use this software is contingent upon your acceptance
* of the terms of this agreement
*
* .
*
*/
/************************************************************************************************
* PRODUCT OF PT INOVACAO - EST DEPARTMENT and Telecommunications Institute (Aveiro, Portugal) *
************************************************************************************************/
package android.gov.nist.javax.sip.parser.ims;
/**
* Security Agreement for SIP.
* headers: Security-Client, Security-Server and Security-Verify
*
* @author Miguel Freitas (IT) PT-Inovacao
*/
import android.gov.nist.core.NameValue;
import android.gov.nist.core.Token;
import android.gov.nist.javax.sip.header.SIPHeaderList;
import android.gov.nist.javax.sip.header.ims.*;
import android.gov.nist.javax.sip.parser.HeaderParser;
import android.gov.nist.javax.sip.parser.Lexer;
import android.gov.nist.javax.sip.parser.TokenTypes;
import java.text.ParseException;
public class SecurityAgreeParser extends HeaderParser
{
public SecurityAgreeParser(String security) {
super(security);
}
protected SecurityAgreeParser(Lexer lexer) {
super(lexer);
}
protected void parseParameter(SecurityAgree header)
throws ParseException
{
if (debug)
dbg_enter("parseParameter");
try {
NameValue nv = this.nameValue('=');
header.setParameter(nv);
} finally {
if (debug)
dbg_leave("parseParameter");
}
}
public SIPHeaderList parse(SecurityAgree header) throws ParseException
{
SIPHeaderList list;
if (header.getClass().isInstance(new SecurityClient())) {
list = new SecurityClientList();
} else if (header.getClass().isInstance(new SecurityServer())) {
list = new SecurityServerList();
} else if (header.getClass().isInstance(new SecurityVerify())) {
list = new SecurityVerifyList();
}
else
return null;
// the security-mechanism:
this.lexer.SPorHT();
lexer.match(TokenTypes.ID);
Token type = lexer.getNextToken();
header.setSecurityMechanism(type.getTokenValue());
this.lexer.SPorHT();
char la = lexer.lookAhead(0);
if (la == '\n')
{
list.add(header);
return list;
}
else if (la == ';')
this.lexer.match(';');
this.lexer.SPorHT();
// The parameters:
try {
while (lexer.lookAhead(0) != '\n') {
this.parseParameter(header);
this.lexer.SPorHT();
char laInLoop = lexer.lookAhead(0);
if (laInLoop == '\n' || laInLoop == '\0')
break;
else if (laInLoop == ',')
{
list.add(header);
if (header.getClass().isInstance(new SecurityClient())) {
header = new SecurityClient();
} else if (header.getClass().isInstance(new SecurityServer())) {
header = new SecurityServer();
} else if (header.getClass().isInstance(new SecurityVerify())) {
header = new SecurityVerify();
}
this.lexer.match(',');
// the security-mechanism:
this.lexer.SPorHT();
lexer.match(TokenTypes.ID);
type = lexer.getNextToken();
header.setSecurityMechanism(type.getTokenValue());
}
this.lexer.SPorHT();
if (lexer.lookAhead(0) == ';')
this.lexer.match(';');
this.lexer.SPorHT();
}
list.add(header);
return list;
} catch (ParseException ex) {
throw ex;
}
}
}