| /* |
| * Copyright (c) 2017, 2018 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0, which is available at |
| * http://www.eclipse.org/legal/epl-2.0. |
| * |
| * This Source Code may also be made available under the following Secondary |
| * Licenses when the conditions for such availability set forth in the |
| * Eclipse Public License v. 2.0 are satisfied: GNU General Public License, |
| * version 2 with the GNU Classpath Exception, which is available at |
| * https://www.gnu.org/software/classpath/license.html. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 |
| */ |
| |
| package com.sun.ejte.ccl.webrunner.proxy; |
| |
| import java.util.*; |
| |
| /** |
| * MIME is an internet standard for communicating multimedia content over e-mail systems.MimeHeader extends HashTable so that it can store key value pairs. |
| * @author Deepa Singh(deepa.singh@sun.com) |
| *Company: Sun Microsystems Inc |
| * |
| */ |
| public class MimeHeader extends Hashtable |
| { |
| /** |
| * Takes a String as a parameter and parses it.Takes a raw MIME-formatted String and enter its key/value pairs into a given instance of MimeHeader.Uses |
| *StringTokenizer to split the input data into individual lines marked by CRLF(\r\n) sequence. |
| * @author Deepa Singh(deepa.singh@sun.com) |
| * @return void |
| * @param data The string to be parsed |
| */ |
| void parse(String data) |
| { |
| StringTokenizer st=new StringTokenizer(data,"\r\n"); |
| while(st.hasMoreTokens()) |
| { |
| String s=st.nextToken(); |
| int colon=s.indexOf(':'); |
| String key=s.substring(0,colon); |
| String val=s.substring(colon+2); |
| put(key,val); |
| } |
| } |
| |
| /** |
| * Default Constructor |
| *Class is a subclass of HashTable so that it can conveneintly store and retreive the key/value pairs |
| *associated with a MIME header.It creates a blank MimeHeader with no keys. |
| * @author Deepa Singh(deepa.singh@sun.com) |
| * |
| * @param None |
| */ |
| MimeHeader(){} |
| |
| /** |
| * This constructor takes strng formatted as MIME header and parses it for the initial contents of the objects. |
| * @author Deepa Singh(deepa.singh@sun.com) |
| * |
| * @param d The string to be parsed |
| */ |
| MimeHeader(String d) |
| { |
| parse(d); |
| } |
| |
| /** |
| * Converts to String .It takes current key/value pairs stored in the MimeHeader and returns a string representation of them in |
| *MIME format, where keys are printed followed by colon and a space, and then value followed by CRLF. |
| * @author Deepa Singh(deepa.singh@sun.com) |
| * @return String |
| */ |
| public String toString() |
| { |
| String ret=""; |
| Enumeration e=keys(); |
| while(e.hasMoreElements()) |
| { |
| String key=(String)e.nextElement(); |
| String val=(String)get(key); |
| ret+=key + ": " + val + "\r\n"; |
| } |
| return ret; |
| } |
| |
| /** |
| *To remove the discrepancy in MIME specification for "Content-Type" and "content-type" and "Content-Length" to "content-length" |
| *To avoid problems, all incoming and outgoing MimeHeader keys are converted to canonical form. |
| * @author Deepa Singh(deepa.singh@sun.com) |
| * @return String |
| * @param ms String to be operated upon |
| */ |
| private String fix(String ms) |
| { |
| char chars[]=ms.toLowerCase().toCharArray(); |
| boolean upcaseNext=true; |
| for(int i=0;i<chars.length-1;i++) |
| { |
| char ch=chars[i]; |
| if(upcaseNext && 'a' <=ch && ch <='z') |
| { |
| chars[i]=(char)(ch-('a'-'A')); |
| } |
| upcaseNext=ch=='-'; |
| } |
| return new String(chars); |
| } |
| |
| /** |
| * @author Deepa Singh(deepa.singh@sun.com) |
| * @return String |
| * @param key String to be fetched |
| */ |
| public String get(String key) |
| { |
| return (String)super.get(fix(key)); |
| } |
| |
| /** |
| * |
| * @author Deepa Singh(deepa.singh@sun.com) |
| * @return void |
| * @param key The Key String |
| * @param val The value String |
| */ |
| public void put(String key,String val) |
| { |
| super.put(fix(key),val); |
| } |
| |
| |
| } |