Start line:  
End line:  

Snippet Preview

Snippet HTML Code

Stack Overflow Questions
  //
  //  ========================================================================
  //  Copyright (c) 1995-2012 Mort Bay Consulting Pty. Ltd.
  //  ------------------------------------------------------------------------
  //  All rights reserved. This program and the accompanying materials
  //  are made available under the terms of the Eclipse Public License v1.0
  //  and Apache License v2.0 which accompanies this distribution.
  //
  //      The Eclipse Public License is available at
 //      http://www.eclipse.org/legal/epl-v10.html
 //
 //      The Apache License v2.0 is available at
 //      http://www.opensource.org/licenses/apache2.0.php
 //
 //  You may elect to redistribute this code under either of these licenses.
 //  ========================================================================
 //
 
 package org.eclipse.jetty.server;
 
 
 
 
 /* ------------------------------------------------------------ */
Cookie parser

Optimized stateful cookie parser. Cookies fields are added with the addCookieField(java.lang.String) method and parsed on the next subsequent call to getCookies(). If the added fields are identical to those last added (as strings), then the cookies are not re parsed.

 
 public class CookieCutter
 {
     private static final Logger LOG = Log.getLogger(CookieCutter.class);
 
 
     private Cookie[] _cookies;
     private Cookie[] _lastCookies;
     Object _lazyFields;
     int _fields;
     
     public CookieCutter()
     {  
     }
     
     public Cookie[] getCookies()
     {
         if (!=null)
             return ;
         
         if (!=null &&
             !=null &&
             ==LazyList.size())
             =;
         else
             parseFields();
         =;
         return ;
     }
     
     public void setCookies(Cookie[] cookies)
     {
         =cookies;
         =null;
         =null;
         =0;
     }
     
     public void reset()
     {
         =null;
         =0;
     }
     
     public void addCookieField(String f)
     {
         if (f==null)
             return;
         f=f.trim();
         if (f.length()==0)
             return;
             
         if (LazyList.size()>)
         {
             if (f.equals(LazyList.get(,)))
             {
                 ++;
                 return;
             }
             
             while (LazyList.size()>)
                =LazyList.remove(,);
        }
        =null;
        =null;
        =LazyList.add(,++,f);
    }
    
    
    protected void parseFields()
    {
        =null;
        =null;
        
        Object cookies = null;
        int version = 0;
        // delete excess fields
        while (LazyList.size()>)
            =LazyList.remove(,);
        
        // For each cookie field
        for (int f=0;f<;f++)
        {
            String hdr = LazyList.get(,f);
            
            // Parse the header
            String name = null;
            String value = null;
            Cookie cookie = null;
            boolean invalue=false;
            boolean quoted=false;
            boolean escaped=false;
            int tokenstart=-1;
            int tokenend=-1;
            for (int i = 0, length = hdr.length(), last=length-1; i < lengthi++)
            {
                char c = hdr.charAt(i);
                
                // Handle quoted values for name or value
                if (quoted)
                {
                    if (escaped)
                    {
                        escaped=false;
                        continue;
                    }
                    
                    switch (c)
                    {
                        case '"':
                            tokenend=i;
                            quoted=false;
                            // handle quote as last character specially
                            if (i==last)
                            {
                                if (invalue)
                                    value = hdr.substring(tokenstarttokenend+1);
                                else
                                {
                                    name = hdr.substring(tokenstarttokenend+1);
                                    value = "";
                                }
                            }
                            break;
                            
                        case '\\':
                            escaped=true;
                            continue;
                        default:
                            continue;
                    }
                }
                else
                {
                    // Handle name and value state machines
                    if (invalue)
                    {
                        // parse the value
                        switch (c)
                        {
                            case ' ':
                            case '\t':
                                continue;
                                
                            case '"':
                                if (tokenstart<0)
                                {
                                    quoted=true;
                                    tokenstart=i;
                                }
                                tokenend=i;
                                if (i==last)
                                {
                                    value = hdr.substring(tokenstarttokenend+1);
                                    break;
                                }
                                continue;
                            case ';':
                            // case ',':
                                if (tokenstart>=0)
                                    value = hdr.substring(tokenstarttokenend+1);
                                else
                                    value="";
                                tokenstart = -1;
                                invalue=false;
                                break;
                                
                            default:
                                if (tokenstart<0)
                                    tokenstart=i;
                                tokenend=i;
                                if (i==last)
                                {
                                    value = hdr.substring(tokenstarttokenend+1);
                                    break;
                                }
                                continue;
                        }
                    }
                    else
                    {
                        // parse the name
                        switch (c)
                        {
                            case ' ':
                            case '\t':
                                continue;
                                
                            case '"':
                                if (tokenstart<0)
                                {
                                    quoted=true;
                                    tokenstart=i;
                                }
                                tokenend=i;
                                if (i==last)
                                {
                                    name = hdr.substring(tokenstarttokenend+1);
                                    value = "";
                                    break;
                                }
                                continue;
                            case ';':
                            // case ',':
                                if (tokenstart>=0)
                                {
                                    name = hdr.substring(tokenstarttokenend+1);
                                    value = "";
                                }
                                tokenstart = -1;
                                break;
                            case '=':
                                if (tokenstart>=0)
                                    name = hdr.substring(tokenstarttokenend+1);
                                tokenstart = -1;
                                invalue=true;
                                continue;
                                
                            default:
                                if (tokenstart<0)
                                    tokenstart=i;
                                tokenend=i;
                                if (i==last)
                                {
                                    name = hdr.substring(tokenstarttokenend+1);
                                    value = "";
                                    break;
                                }
                                continue;
                        }
                    }
                }
                // If after processing the current character we have a value and a name, then it is a cookie
                if (value!=null && name!=null)
                {
                    // TODO handle unquoting during parsing!  But quoting is uncommon
                    name=QuotedStringTokenizer.unquote(name);
                    value=QuotedStringTokenizer.unquote(value);
                    
                    try
                    {
                        if (name.startsWith("$"))
                        {
                            String lowercaseName = name.toLowerCase(.);
                            if ("$path".equals(lowercaseName))
                            {
                                if (cookie!=null)
                                    cookie.setPath(value);
                            }
                            else if ("$domain".equals(lowercaseName))
                            {
                                if (cookie!=null)
                                    cookie.setDomain(value);
                            }
                            else if ("$port".equals(lowercaseName))
                            {
                                if (cookie!=null)
                                    cookie.setComment("$port="+value);
                            }
                            else if ("$version".equals(lowercaseName))
                            {
                                version = Integer.parseInt(value);
                            }
                        }
                        else
                        {
                            cookie = new Cookie(namevalue);
                            if (version > 0)
                                cookie.setVersion(version);
                            cookies = LazyList.add(cookiescookie);
                        }
                    }
                    catch (Exception e)
                    {
                        .debug(e);
                    }
                    name = null;
                    value = null;
                }
            }
        }
         = (Cookie[]) LazyList.toArray(cookies,Cookie.class);
        =;
    }
    
New to GrepCode? Check out our FAQ X