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/*
 * 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
 *
 * .
 *
 */
package android.gov.nist.javax.sip.parser;

import android.gov.nist.core.LexerCore;
import android.gov.nist.javax.sip.header.extensions.JoinHeader;
import android.gov.nist.javax.sip.header.extensions.MinSEHeader;
import android.gov.nist.javax.sip.header.extensions.ReferencesHeader;
import android.gov.nist.javax.sip.header.extensions.ReferredByHeader;
import android.gov.nist.javax.sip.header.extensions.ReplacesHeader;
import android.gov.nist.javax.sip.header.extensions.SessionExpiresHeader;
import android.gov.nist.javax.sip.header.ims.PAccessNetworkInfoHeader;
import android.gov.nist.javax.sip.header.ims.PAssertedIdentityHeader;
import android.gov.nist.javax.sip.header.ims.PAssertedServiceHeader;
import android.gov.nist.javax.sip.header.ims.PAssociatedURIHeader;
import android.gov.nist.javax.sip.header.ims.PCalledPartyIDHeader;
import android.gov.nist.javax.sip.header.ims.PChargingFunctionAddressesHeader;
import android.gov.nist.javax.sip.header.ims.PChargingVectorHeader;
import android.gov.nist.javax.sip.header.ims.PMediaAuthorizationHeader;
import android.gov.nist.javax.sip.header.ims.PPreferredIdentityHeader;
import android.gov.nist.javax.sip.header.ims.PPreferredServiceHeader;
import android.gov.nist.javax.sip.header.ims.PProfileKeyHeader;
import android.gov.nist.javax.sip.header.ims.PServedUserHeader;
import android.gov.nist.javax.sip.header.ims.PUserDatabaseHeader;
import android.gov.nist.javax.sip.header.ims.PVisitedNetworkIDHeader;
import android.gov.nist.javax.sip.header.ims.PathHeader;
import android.gov.nist.javax.sip.header.ims.PrivacyHeader;
import android.gov.nist.javax.sip.header.ims.SecurityClientHeader;
import android.gov.nist.javax.sip.header.ims.SecurityServerHeader;
import android.gov.nist.javax.sip.header.ims.SecurityVerifyHeader;
import android.gov.nist.javax.sip.header.ims.ServiceRouteHeader;

import java.util.concurrent.ConcurrentHashMap;

import android.javax.sip.header.AcceptEncodingHeader;
import android.javax.sip.header.AcceptHeader;
import android.javax.sip.header.AcceptLanguageHeader;
import android.javax.sip.header.AlertInfoHeader;
import android.javax.sip.header.AllowEventsHeader;
import android.javax.sip.header.AllowHeader;
import android.javax.sip.header.AuthenticationInfoHeader;
import android.javax.sip.header.AuthorizationHeader;
import android.javax.sip.header.CSeqHeader;
import android.javax.sip.header.CallIdHeader;
import android.javax.sip.header.CallInfoHeader;
import android.javax.sip.header.ContactHeader;
import android.javax.sip.header.ContentDispositionHeader;
import android.javax.sip.header.ContentEncodingHeader;
import android.javax.sip.header.ContentLanguageHeader;
import android.javax.sip.header.ContentLengthHeader;
import android.javax.sip.header.ContentTypeHeader;
import android.javax.sip.header.DateHeader;
import android.javax.sip.header.ErrorInfoHeader;
import android.javax.sip.header.EventHeader;
import android.javax.sip.header.ExpiresHeader;
import android.javax.sip.header.FromHeader;
import android.javax.sip.header.InReplyToHeader;
import android.javax.sip.header.MaxForwardsHeader;
import android.javax.sip.header.MimeVersionHeader;
import android.javax.sip.header.MinExpiresHeader;
import android.javax.sip.header.OrganizationHeader;
import android.javax.sip.header.PriorityHeader;
import android.javax.sip.header.ProxyAuthenticateHeader;
import android.javax.sip.header.ProxyAuthorizationHeader;
import android.javax.sip.header.ProxyRequireHeader;
import android.javax.sip.header.RAckHeader;
import android.javax.sip.header.RSeqHeader;
import android.javax.sip.header.ReasonHeader;
import android.javax.sip.header.RecordRouteHeader;
import android.javax.sip.header.ReferToHeader;
import android.javax.sip.header.ReplyToHeader;
import android.javax.sip.header.RequireHeader;
import android.javax.sip.header.RetryAfterHeader;
import android.javax.sip.header.RouteHeader;
import android.javax.sip.header.SIPETagHeader;
import android.javax.sip.header.SIPIfMatchHeader;
import android.javax.sip.header.ServerHeader;
import android.javax.sip.header.SubjectHeader;
import android.javax.sip.header.SubscriptionStateHeader;
import android.javax.sip.header.SupportedHeader;
import android.javax.sip.header.TimeStampHeader;
import android.javax.sip.header.ToHeader;
import android.javax.sip.header.UnsupportedHeader;
import android.javax.sip.header.UserAgentHeader;
import android.javax.sip.header.ViaHeader;
import android.javax.sip.header.WWWAuthenticateHeader;
import android.javax.sip.header.WarningHeader;

/**
 * Lexer class for the parser.
 *
 * @version 1.2
 *
 * @author M. Ranganathan 
* * */ public class Lexer extends LexerCore { /** * get the header name of the line * * @return the header name (stuff before the :) bug fix submitted by * [email protected] */ public static String getHeaderName(String line) { if (line == null) return null; String headerName = null; try { int begin = line.indexOf(":"); headerName = null; if (begin >= 1) headerName = line.substring(0, begin).trim(); } catch (IndexOutOfBoundsException e) { return null; } return headerName; } public Lexer(String lexerName, String buffer) { super(lexerName, buffer); this.selectLexer(lexerName); } /** * get the header value of the line * * @return String */ public static String getHeaderValue(String line) { if (line == null) return null; String headerValue = null; try { int begin = line.indexOf(":"); headerValue = line.substring(begin + 1); } catch (IndexOutOfBoundsException e) { return null; } return headerValue; } public void selectLexer(String lexerName) { // Synchronization Bug fix by Robert Rosen. ConcurrentHashMap lexer = lexerTables.get(lexerName); this.currentLexerName = lexerName; if (lexer == null) { ConcurrentHashMap newLexer = new ConcurrentHashMap(); // Temporarily set newLexer as current, so addKeyword populate it currentLexer = newLexer; // addLexer(lexerName); if (lexerName.equals("method_keywordLexer")) { addKeyword(TokenNames.REGISTER, TokenTypes.REGISTER); addKeyword(TokenNames.ACK, TokenTypes.ACK); addKeyword(TokenNames.OPTIONS, TokenTypes.OPTIONS); addKeyword(TokenNames.BYE, TokenTypes.BYE); addKeyword(TokenNames.INVITE, TokenTypes.INVITE); addKeyword(TokenNames.SIP, TokenTypes.SIP); addKeyword(TokenNames.SIPS, TokenTypes.SIPS); addKeyword(TokenNames.SUBSCRIBE, TokenTypes.SUBSCRIBE); addKeyword(TokenNames.NOTIFY, TokenTypes.NOTIFY); addKeyword(TokenNames.MESSAGE, TokenTypes.MESSAGE); // JvB: added to support RFC3903 addKeyword(TokenNames.PUBLISH, TokenTypes.PUBLISH); } else if (lexerName.equals("command_keywordLexer")) { addKeyword(ErrorInfoHeader.NAME, TokenTypes.ERROR_INFO); addKeyword(AllowEventsHeader.NAME, TokenTypes.ALLOW_EVENTS); addKeyword(AuthenticationInfoHeader.NAME, TokenTypes.AUTHENTICATION_INFO); addKeyword(EventHeader.NAME, TokenTypes.EVENT); addKeyword(MinExpiresHeader.NAME, TokenTypes.MIN_EXPIRES); addKeyword(RSeqHeader.NAME, TokenTypes.RSEQ); addKeyword(RAckHeader.NAME, TokenTypes.RACK); addKeyword(ReasonHeader.NAME, TokenTypes.REASON); addKeyword(ReplyToHeader.NAME, TokenTypes.REPLY_TO); addKeyword(SubscriptionStateHeader.NAME, TokenTypes.SUBSCRIPTION_STATE); addKeyword(TimeStampHeader.NAME, TokenTypes.TIMESTAMP); addKeyword(InReplyToHeader.NAME, TokenTypes.IN_REPLY_TO); addKeyword(MimeVersionHeader.NAME, TokenTypes.MIME_VERSION); addKeyword(AlertInfoHeader.NAME, TokenTypes.ALERT_INFO); addKeyword(FromHeader.NAME, TokenTypes.FROM); addKeyword(ToHeader.NAME, TokenTypes.TO); addKeyword(ReferToHeader.NAME, TokenTypes.REFER_TO); addKeyword(ViaHeader.NAME, TokenTypes.VIA); addKeyword(UserAgentHeader.NAME, TokenTypes.USER_AGENT); addKeyword(ServerHeader.NAME, TokenTypes.SERVER); addKeyword(AcceptEncodingHeader.NAME, TokenTypes.ACCEPT_ENCODING); addKeyword(AcceptHeader.NAME, TokenTypes.ACCEPT); addKeyword(AllowHeader.NAME, TokenTypes.ALLOW); addKeyword(RouteHeader.NAME, TokenTypes.ROUTE); addKeyword(AuthorizationHeader.NAME, TokenTypes.AUTHORIZATION); addKeyword(ProxyAuthorizationHeader.NAME, TokenTypes.PROXY_AUTHORIZATION); addKeyword(RetryAfterHeader.NAME, TokenTypes.RETRY_AFTER); addKeyword(ProxyRequireHeader.NAME, TokenTypes.PROXY_REQUIRE); addKeyword(ContentLanguageHeader.NAME, TokenTypes.CONTENT_LANGUAGE); addKeyword(UnsupportedHeader.NAME, TokenTypes.UNSUPPORTED); addKeyword(SupportedHeader.NAME, TokenTypes.SUPPORTED); addKeyword(WarningHeader.NAME, TokenTypes.WARNING); addKeyword(MaxForwardsHeader.NAME, TokenTypes.MAX_FORWARDS); addKeyword(DateHeader.NAME, TokenTypes.DATE); addKeyword(PriorityHeader.NAME, TokenTypes.PRIORITY); addKeyword(ProxyAuthenticateHeader.NAME, TokenTypes.PROXY_AUTHENTICATE); addKeyword(ContentEncodingHeader.NAME, TokenTypes.CONTENT_ENCODING); addKeyword(ContentLengthHeader.NAME, TokenTypes.CONTENT_LENGTH); addKeyword(SubjectHeader.NAME, TokenTypes.SUBJECT); addKeyword(ContentTypeHeader.NAME, TokenTypes.CONTENT_TYPE); addKeyword(ContactHeader.NAME, TokenTypes.CONTACT); addKeyword(CallIdHeader.NAME, TokenTypes.CALL_ID); addKeyword(RequireHeader.NAME, TokenTypes.REQUIRE); addKeyword(ExpiresHeader.NAME, TokenTypes.EXPIRES); addKeyword(RecordRouteHeader.NAME, TokenTypes.RECORD_ROUTE); addKeyword(OrganizationHeader.NAME, TokenTypes.ORGANIZATION); addKeyword(CSeqHeader.NAME, TokenTypes.CSEQ); addKeyword(AcceptLanguageHeader.NAME, TokenTypes.ACCEPT_LANGUAGE); addKeyword(WWWAuthenticateHeader.NAME, TokenTypes.WWW_AUTHENTICATE); addKeyword(CallInfoHeader.NAME, TokenTypes.CALL_INFO); addKeyword(ContentDispositionHeader.NAME, TokenTypes.CONTENT_DISPOSITION); // And now the dreaded short forms.... addKeyword(TokenNames.K, TokenTypes.SUPPORTED); addKeyword(TokenNames.C, TokenTypes.CONTENT_TYPE); addKeyword(TokenNames.E, TokenTypes.CONTENT_ENCODING); addKeyword(TokenNames.F, TokenTypes.FROM); addKeyword(TokenNames.I, TokenTypes.CALL_ID); addKeyword(TokenNames.M, TokenTypes.CONTACT); addKeyword(TokenNames.L, TokenTypes.CONTENT_LENGTH); addKeyword(TokenNames.S, TokenTypes.SUBJECT); addKeyword(TokenNames.T, TokenTypes.TO); addKeyword(TokenNames.U, TokenTypes.ALLOW_EVENTS); // JvB: added addKeyword(TokenNames.V, TokenTypes.VIA); addKeyword(TokenNames.R, TokenTypes.REFER_TO); addKeyword(TokenNames.O, TokenTypes.EVENT); // Bug // fix // by // Mario // Mantak addKeyword(TokenNames.X, TokenTypes.SESSIONEXPIRES_TO); // Bug fix by Jozef Saniga // JvB: added to support RFC3903 addKeyword(SIPETagHeader.NAME, TokenTypes.SIP_ETAG); addKeyword(SIPIfMatchHeader.NAME, TokenTypes.SIP_IF_MATCH); // pmusgrave: Add RFC4028 and ReferredBy addKeyword(SessionExpiresHeader.NAME, TokenTypes.SESSIONEXPIRES_TO); addKeyword(MinSEHeader.NAME, TokenTypes.MINSE_TO); addKeyword(ReferredByHeader.NAME, TokenTypes.REFERREDBY_TO); // pmusgrave RFC3891 addKeyword(ReplacesHeader.NAME, TokenTypes.REPLACES_TO); //jean deruelle RFC3911 addKeyword(JoinHeader.NAME, TokenTypes.JOIN_TO); // IMS Headers addKeyword(PathHeader.NAME, TokenTypes.PATH); addKeyword(ServiceRouteHeader.NAME, TokenTypes.SERVICE_ROUTE); addKeyword(PAssertedIdentityHeader.NAME, TokenTypes.P_ASSERTED_IDENTITY); addKeyword(PPreferredIdentityHeader.NAME, TokenTypes.P_PREFERRED_IDENTITY); addKeyword(PrivacyHeader.NAME, TokenTypes.PRIVACY); // issued by Miguel Freitas addKeyword(PCalledPartyIDHeader.NAME, TokenTypes.P_CALLED_PARTY_ID); addKeyword(PAssociatedURIHeader.NAME, TokenTypes.P_ASSOCIATED_URI); addKeyword(PVisitedNetworkIDHeader.NAME, TokenTypes.P_VISITED_NETWORK_ID); addKeyword(PChargingFunctionAddressesHeader.NAME, TokenTypes.P_CHARGING_FUNCTION_ADDRESSES); addKeyword(PChargingVectorHeader.NAME, TokenTypes.P_VECTOR_CHARGING); addKeyword(PAccessNetworkInfoHeader.NAME, TokenTypes.P_ACCESS_NETWORK_INFO); addKeyword(PMediaAuthorizationHeader.NAME, TokenTypes.P_MEDIA_AUTHORIZATION); addKeyword(SecurityServerHeader.NAME, TokenTypes.SECURITY_SERVER); addKeyword(SecurityVerifyHeader.NAME, TokenTypes.SECURITY_VERIFY); addKeyword(SecurityClientHeader.NAME, TokenTypes.SECURITY_CLIENT); // added by aayush@rancore addKeyword(PUserDatabaseHeader.NAME, TokenTypes.P_USER_DATABASE); // added by aayush@rancore addKeyword(PProfileKeyHeader.NAME, TokenTypes.P_PROFILE_KEY); // added by aayush@rancore addKeyword(PServedUserHeader.NAME, TokenTypes.P_SERVED_USER); // added by aayush@rancore addKeyword(PPreferredServiceHeader.NAME, TokenTypes.P_PREFERRED_SERVICE); // added by aayush@rancore addKeyword(PAssertedServiceHeader.NAME, TokenTypes.P_ASSERTED_SERVICE); // added References header addKeyword(ReferencesHeader.NAME,TokenTypes.REFERENCES); // end // } else if (lexerName.equals("status_lineLexer")) { addKeyword(TokenNames.SIP, TokenTypes.SIP); } else if (lexerName.equals("request_lineLexer")) { addKeyword(TokenNames.SIP, TokenTypes.SIP); } else if (lexerName.equals("sip_urlLexer")) { addKeyword(TokenNames.TEL, TokenTypes.TEL); addKeyword(TokenNames.SIP, TokenTypes.SIP); addKeyword(TokenNames.SIPS, TokenTypes.SIPS); } // Now newLexer is completely initialized, let's check if somebody // have put lexer in table lexer = lexerTables.putIfAbsent(lexerName, newLexer); if (lexer == null) { // put succeeded, use new value lexer = newLexer; } currentLexer = lexer; } else { currentLexer = lexer; } } }




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