httpuri.java

jetty SERVER連接資料庫用的軟體

//========================================================================
//Copyright 2006 Mort Bay Consulting Pty. Ltd.
//------------------------------------------------------------------------
//Licensed under the Apache License, Version 2.0 (the "License");
//you may not use this file except in compliance with the License.
//You may obtain a copy of the License at 
//http://www.apache.org/licenses/LICENSE-2.0
//Unless required by applicable law or agreed to in writing, software
//distributed under the License is distributed on an "AS IS" BASIS,
//WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//See the License for the specific language governing permissions and
//limitations under the License.
//========================================================================

package org.mortbay.jetty;

import java.io.UnsupportedEncodingException;

import org.mortbay.util.MultiMap;
import org.mortbay.util.StringUtil;
import org.mortbay.util.TypeUtil;
import org.mortbay.util.URIUtil;
import org.mortbay.util.UrlEncoded;
import org.mortbay.util.Utf8StringBuffer;


/* ------------------------------------------------------------ */
/** Http URI.
 * Parse a HTTP URI from a string or byte array.  Given a URI
 * <code>http://user@host:port/path/info;param?query#fragment</code>
 * this class will split it into the following undecoded optional elements:<ul>
 * <li>{@link #getScheme()} - http:</li>
 * <li>{@link #getAuthority()} - //name@host:port</li>
 * <li>{@link #getHost()} - host</li>
 * <li>{@link #getPort()} - port</li>
 * <li>{@link #getPath()} - /path/info</li>
 * <li>{@link #getParam()} - param</li>
 * <li>{@link #getQuery()} - query</li>
 * <li>{@link #getFragment()} - fragment</li>
 * </ul>
 * 
 */
public class HttpURI
{
    private static byte[] __empty={}; 
    private final static int 
    START=0,
    AUTH_OR_PATH=1,
    SCHEME_OR_PATH=2,
    AUTH=4,
    IPV6=5,
    PORT=6,
    PATH=7,
    PARAM=8,
    QUERY=9,
    ASTERISK=10;
    
    boolean _partial=false;
    byte[] _raw=__empty;
    String _rawString;
    int _scheme;
    int _authority;
    int _host;
    int _port;
    int _path;
    int _param;
    int _query;
    int _fragment;
    int _end;
    
    Utf8StringBuffer _utf8b = new Utf8StringBuffer(64);
    
    public HttpURI()
    {
        
    } 
    
    /* ------------------------------------------------------------ */
    /**
     * @param parsePartialAuth If True, parse auth without prior scheme, else treat all URIs starting with / as paths
     */
    public HttpURI(boolean parsePartialAuth)
    {
        _partial=parsePartialAuth;
    }
    
    public HttpURI(String raw)
    {
        _rawString=raw;
        byte[] b = raw.getBytes();
        parse(b,0,b.length);
    }
    
    public HttpURI(byte[] raw,int offset, int length)
    {
        parse2(raw,offset,length);
    }
    
    public void parse(String raw)
    {
        byte[] b = raw.getBytes();
        parse2(b,0,b.length);
        _rawString=raw;
    }
    
    public void parse(byte[] raw,int offset, int length)
    {
        _rawString=null;
        parse2(raw,offset,length);
    }
    
    private void parse2(byte[] raw,int offset, int length)
    {
        _raw=raw;
        int i=offset;
        int e=offset+length;
        int state=START;
        int m=offset;
        _end=offset+length;
        _scheme=offset;
        _authority=offset;
        _host=offset;
        _port=offset;
        _path=offset;
        _param=_end;
        _query=_end;
        _fragment=_end;
        while (i<e)
        {
            char c=(char)(0xff&_raw[i]);
            int s=i++;
            
            state: switch (state)
            {
                case START:
                {
                    m=s;
                    switch(c)
                    {
                        case '/':
                            state=AUTH_OR_PATH;
                            break;
                        case ';':
                            _param=s;
                            state=PARAM;
                            break;
                        case '?':
                            _param=s;
                            _query=s;
                            state=QUERY;
                            break;
                        case '#':
                            _param=s;
                            _query=s;
                            _fragment=s;
                            break;
                        case '*':
                            _path=s;
                            state=ASTERISK;
                            break;
                            
                        default:
                            if (Character.isLetterOrDigit(c))
                                state=SCHEME_OR_PATH;
                            else
                                throw new IllegalArgumentException(StringUtil.toString(_raw,offset,length,URIUtil.__CHARSET));
                    }
                    
                    continue;
                }

                case AUTH_OR_PATH:
                {
                    if ((_partial||_scheme!=_authority) && c=='/')
                    {
                        _host=i;
                        _port=_end;
                        _path=_end;
                        state=AUTH;
                    }
                    else if (c==';' || c=='?' || c=='#')
                    {
                        i--;
                        state=PATH;
                    }  
                    else
                    {
                        _host=m;
                        _port=m;
                        state=PATH;
                    }  
                    continue;
                }
                
                case SCHEME_OR_PATH:
                {
                    // short cut for http and https
                    if (length>6 && c=='t')
                    {
                        if (_raw[offset+3]==':')
                        {
                            s=offset+3;
                            i=offset+4;
                            c=':';
                        }
                        else if (_raw[offset+4]==':')
                        {
                            s=offset+4;
                            i=offset+5;
                            c=':';
                        }
                        else if (_raw[offset+5]==':')
                        {
                            s=offset+5;
                            i=offset+6;
                            c=':';
                        }
                    }
                    
                    switch (c)
                    {
                        case ':':
                        {
                            m = i++;
                            _authority = m;
                            _path = m;
                            c = (char)(0xff & _raw[i]);
                            if (c == '/')
                                state = AUTH_OR_PATH;
                            else
                            {
                                _host = m;
                                _port = m;
                                state = PATH;
                            }
                            break;
                        }
                        
                        case '/':
                        {
                            state = PATH;
                            break;
                        }
                        
                        case ';':
                        {
                            _param = s;
                            state = PARAM;
                            break;
                        }
                        
                        case '?':
                        {
                            _param = s;
                            _query = s;
                            state = QUERY;
                            break;
                        }
                        
                        case '#':
                        {
                            _param = s;
                            _query = s;
                            _fragment = s;
                            break;
                        }
                    }
                    continue;
                }
                
                case AUTH:
                {
                    switch (c)
                    {

                        case '/':
                        {
                            m = s;
                            _path = m;
                            _port = _path;
                            state = PATH;
                            break;
                        }
                        case '@':
                        {
                            _host = i;
                            break;
                        }
                        case ':':
                        {
                            _port = s;
                            state = PORT;
                            break;
                        }