parse Request Header : Http Connection « Network « Android

1. Android
2. Network
3. Http Connection

parse Request Header

     

//package jp.tf_web.httpserversample.http;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.StringReader;
import java.util.HashMap;

import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.ProtocolVersion;
import org.apache.http.RequestLine;
import org.apache.http.StatusLine;
import org.apache.http.entity.BasicHttpEntity;
import org.apache.http.entity.ByteArrayEntity;
import org.apache.http.message.BasicHttpResponse;
import org.apache.http.message.BasicLineParser;
import org.apache.http.message.BufferedHeader;
import org.apache.http.util.CharArrayBuffer;

import android.util.Log;
import android.webkit.MimeTypeMap;

class HttpUtil {
  public final static String HTTP_PROTOCOL = "HTTP/1.1";
  public final static String HEADER_NAME_REQUESTLINE = "RequestLine";
  public final static String HEADER_NAME_CONTENT_LENGTH = "Content-Length";
  
  private HttpUtil(){}
  
  //??????????????
  public static HashMap<String,Object> parseRequestHeader(String headers_str) throws IOException{
    //????????
    StringReader sr = new StringReader(headers_str);
    BufferedReader bur = new BufferedReader(sr);

    HashMap<String,Object> headerList = new HashMap<String,Object>();
    String line;
    int line_index = 0;
    while((line = bur.readLine()) != null){
      if(line.length() == 0) break;
      
      //????????
      if(line_index == 0){
        //????????
        BasicLineParser parser = new BasicLineParser();
        RequestLine request_line = BasicLineParser.parseRequestLine(line, parser);
        headerList.put(HttpUtil.HEADER_NAME_REQUESTLINE,request_line);
      }
      else{
        //????
        CharArrayBuffer cab = new CharArrayBuffer(line.length());
        cab.append(line);
        Header h = new BufferedHeader(cab);
        headerList.put(h.getName(),h);
      }
      
      line_index++;
    }
    bur.close();
    sr.close();
    
    return headerList;
  }
  
  //???????????
  public static StatusLine createStatusLine(int status,String reason){
    BasicLineParser parser = new BasicLineParser();
    return BasicLineParser.parseStatusLine(HTTP_PROTOCOL+" "+status+" "+reason,parser);
  }
  
  //HTTP????????
  public static HttpResponse createHttpResponse(int status,String reason,HttpEntity entity){
    StatusLine header_sl = HttpUtil.createStatusLine(status,reason);
    HttpResponse hr = new BasicHttpResponse(header_sl);
    hr.setEntity(entity);    
    return hr; 
  }
  
  public static HttpEntity createHttpEntity(String contentType,byte[] entity_buf){
    ByteArrayEntity he = new ByteArrayEntity(entity_buf);
    he.setContentType(contentType);
    return he;
  }
  
  public static String getMimeTypeFromUri(String uri){
    //?????MimeType???
    String ext = MimeTypeMap.getSingleton().getFileExtensionFromUrl(uri);
    String mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(ext);
    
    //????? "application/octet-stream"
    //ToDo mime-type????????????mime-type???????????????
    mimeType = (mimeType != null)?mimeType:"application/octet-stream";
    Log.d(HttpUtil.class.getName(),"ext:"+ext+" mimeType:"+mimeType);

    return mimeType;
  }
}

   
    
    
    
    
  

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