/**
* Get a dialog identifier. Generates a string that can be used as a dialog identifier.
*
* @param isServer is set to true if this is the UAS and set to false if this is the UAC
*/
public String getDialogId(boolean isServer) {
CallID cid = (CallID) this.getCallId();
StringBuffer retval = new StringBuffer(cid.getCallId());
From from = (From) this.getFrom();
To to = (To) this.getTo();
if (!isServer) {
// retval.append(COLON).append(from.getUserAtHostPort());
if (from.getTag() != null) {
retval.append(COLON);
retval.append(from.getTag());
}
// retval.append(COLON).append(to.getUserAtHostPort());
if (to.getTag() != null) {
retval.append(COLON);
retval.append(to.getTag());
}
} else {
// retval.append(COLON).append(to.getUserAtHostPort());
if (to.getTag() != null) {
retval.append(COLON);
retval.append(to.getTag());
}
// retval.append(COLON).append(from.getUserAtHostPort());
if (from.getTag() != null) {
retval.append(COLON);
retval.append(from.getTag());
}
}
return retval.toString().toLowerCase();
}
protected String hvalue() throws ParseException {
StringBuffer retval = new StringBuffer();
while (lexer.hasMoreChars()) {
char la = lexer.lookAhead(0);
// Look for a character that can terminate a URL.
if (la == '+'
|| la == '?'
|| la == ':'
|| la == '['
|| la == ']'
|| la == '/'
|| la == '$'
|| la == '_'
|| la == '-'
|| la == '"'
|| la == '!'
|| la == '~'
|| la == '*'
|| la == '.'
|| la == '('
|| la == ')'
|| Lexer.isAlpha(la)
|| Lexer.isDigit(la)) {
lexer.consume(1);
retval.append(la);
} else if (la == '%') {
retval.append(escaped());
} else break;
}
return retval.toString();
}
/** Parser for the local phone #. */
private String local_number() throws ParseException {
StringBuffer s = new StringBuffer();
if (debug) dbg_enter("local_number");
try {
int lc = 0;
while (lexer.hasMoreChars()) {
char la = lexer.lookAhead(0);
if (la == '*'
|| la == '#'
|| la == '-'
|| la == '.'
|| la == '('
|| la == ')'
|| Lexer.isDigit(la)) {
lexer.consume(1);
s.append(la);
lc++;
} else if (lc > 0) break;
else throw createParseException("unexepcted " + la);
}
return s.toString();
} finally {
if (debug) dbg_leave("local_number");
}
}
/**
* Encode into canonical form.
*
* @return String
*/
public String encodeBody() {
StringBuffer retval =
new StringBuffer(LESS_THAN).append(errorInfo.toString()).append(GREATER_THAN);
if (!parameters.isEmpty()) {
retval.append(SEMICOLON).append(parameters.encode());
}
return retval.toString();
}
protected String uricString() {
StringBuffer retval = new StringBuffer();
while (true) {
String next = uric();
if (next == null) break;
retval.append(next);
}
return retval.toString();
}
/**
* Scan forward until you hit a terminating character for a URL. We do not handle non sip urls in
* this implementation.
*
* @return the string that takes us to the end of this URL (i.e. to the next delimiter).
*/
protected String urlString() throws ParseException {
StringBuffer retval = new StringBuffer();
lexer.selectLexer("charLexer");
while (lexer.hasMoreChars()) {
char la = lexer.lookAhead(0);
// Look for a character that can terminate a URL.
if (la == ' ' || la == '\t' || la == '\n' || la == '>' || la == '<') break;
lexer.consume(0);
retval.append(la);
}
return retval.toString();
}
protected String password() throws ParseException {
StringBuffer retval = new StringBuffer();
while (true) {
char la = lexer.lookAhead(0);
if (isUnreserved(la) || la == '&' || la == '=' || la == '+' || la == '$' || la == ',') {
retval.append(la);
lexer.consume(1);
} else if (isEscaped()) {
String esc = lexer.charAsString(3);
retval.append(esc);
lexer.consume(3); // bug reported by
// Jeff Haynie
} else break;
}
return retval.toString();
}
protected String escaped() throws ParseException {
if (debug) dbg_enter("escaped");
try {
StringBuffer retval = new StringBuffer();
char next = lexer.lookAhead(0);
char next1 = lexer.lookAhead(1);
char next2 = lexer.lookAhead(2);
if (next == '%' && Lexer.isHexDigit(next1) && Lexer.isHexDigit(next2)) {
lexer.consume(3);
retval.append(next);
retval.append(next1);
retval.append(next2);
} else throw createParseException("escaped");
return retval.toString();
} finally {
if (debug) dbg_leave("escaped");
}
}
/** Parser for the base phone number. */
private String base_phone_number() throws ParseException {
StringBuffer s = new StringBuffer();
if (debug) dbg_enter("base_phone_number");
try {
int lc = 0;
while (lexer.hasMoreChars()) {
char w = lexer.lookAhead(0);
if (Lexer.isDigit(w) || w == '-' || w == '.' || w == '(' || w == ')') {
lexer.consume(1);
s.append(w);
lc++;
} else if (lc > 0) break;
else throw createParseException("unexpected " + w);
}
return s.toString();
} finally {
if (debug) dbg_leave("base_phone_number");
}
}
protected String user() throws ParseException {
if (debug) dbg_enter("user");
try {
StringBuffer retval = new StringBuffer();
while (lexer.hasMoreChars()) {
char la = lexer.lookAhead(0);
// if (la == '=') break;
if (isUnreserved(la) || isUserUnreserved(la)) {
retval.append(la);
lexer.consume(1);
} else if (isEscaped()) {
String esc = lexer.charAsString(3);
lexer.consume(3);
retval.append(esc);
} else break;
}
return retval.toString();
} finally {
if (debug) dbg_leave("user");
}
}
/** Name or value of a parameter. */
protected String paramNameOrValue() throws ParseException {
StringBuffer retval = new StringBuffer();
while (lexer.hasMoreChars()) {
char next = lexer.lookAhead(0);
if (next == '['
|| next == '['
|| next == '/'
|| next == ':'
|| next == '&'
|| next == '+'
|| next == '$'
|| isUnreserved(next)) {
retval.append(next);
lexer.consume(1);
} else if (isEscaped()) {
String esc = lexer.charAsString(3);
lexer.consume(3);
retval.append(esc);
} else break;
}
return retval.toString();
}