Android Open Source - NewAndroidTwitter Http Conn

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License

The source code is released under:
Apache License
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Java Source Code

package net.londatiga.android.twitter.http;
//from  w  w  w.j  a v  a2  s  .  com
import java.io.InputStream;
import java.util.List;

import net.londatiga.android.twitter.oauth.OauthAccessToken;
import net.londatiga.android.twitter.oauth.OauthConsumer;
import net.londatiga.android.twitter.oauth.OauthHeader;
import net.londatiga.android.twitter.oauth.OauthSignature;
import net.londatiga.android.twitter.oauth.OauthUtil;

import net.londatiga.android.twitter.util.Debug;
import net.londatiga.android.twitter.util.StringUtil;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;

import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;

import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;

/**
 * Http connection with Twiter API.
 * 
 * @author Lorensius W. L. T <lorenz@londatiga.ent>
 *
 */
public class HttpConn {
  private OauthConsumer mOauthConsumer;
  private OauthAccessToken mAcessToken;
  
  public static final String REQUEST_POST = "POST";
  public static final String REQUEST_GET = "GET";
  
  public HttpConn(OauthConsumer consumer, OauthAccessToken acessToken) {
    mOauthConsumer  = consumer;
    mAcessToken    = acessToken;
  }
  
  public String connectPost(String requestUri, List<NameValuePair> params) throws Exception {
    String response     = "";
    
    InputStream stream = null;
    
    try {
      HttpParams httpParams   = new HttpParams();
      
      String nonce      = OauthUtil.createNonce();
      String timestamp    = OauthUtil.getTimeStamp();
      
      httpParams.put("oauth_consumer_key",     new HttpValues(mOauthConsumer.getConsumerKey()));
      httpParams.put("oauth_nonce",         new HttpValues(nonce));
      httpParams.put("oauth_signature_method",   new HttpValues(OauthUtil.SIGNATURE_METHOD));
      httpParams.put("oauth_timestamp",       new HttpValues(timestamp));
      httpParams.put("oauth_token",         new HttpValues(mAcessToken.getToken()));
      httpParams.put("oauth_version",       new HttpValues(OauthUtil.OAUTH_VERSION));
      
      if (params != null) {
        int size = params.size();
        
        for (int i = 0; i < size; i++) {
          BasicNameValuePair param = (BasicNameValuePair) params.get(i);
          
          httpParams.put(param.getName(), new HttpValues(param.getValue()));
        }
      }
      
      OauthSignature reqSignature  = new OauthSignature();
      
      String sigBase    = reqSignature.createSignatureBase(REQUEST_POST, requestUri, httpParams.getQueryString());
      String signature  = reqSignature.createRequestSignature(sigBase, mOauthConsumer.getConsumerSecret(), mAcessToken.getSecret());
      
      String authHeader  = OauthHeader.buildRequestHeader( 
                  mOauthConsumer.getConsumerKey(), 
                  nonce,
                  signature, 
                  OauthUtil.SIGNATURE_METHOD, 
                  timestamp,
                  mAcessToken.getToken(),
                  OauthUtil.OAUTH_VERSION);
          
      Debug.i("Signature base " + sigBase);
      Debug.i("Signature " + signature);
      
      Debug.i("POST " + requestUri);
      Debug.i("Authorization " + authHeader);
      
      java.util.logging.Logger.getLogger("org.apache.http.wire").setLevel(java.util.logging.Level.FINEST);
      java.util.logging.Logger.getLogger("org.apache.http.headers").setLevel(java.util.logging.Level.FINEST);

      System.setProperty("org.apache.commons.logging.Log", "org.apache.commons.logging.impl.SimpleLog");
      System.setProperty("org.apache.commons.logging.simplelog.showdatetime", "true");
      System.setProperty("org.apache.commons.logging.simplelog.log.httpclient.wire", "debug");
      System.setProperty("org.apache.commons.logging.simplelog.log.org.apache.http", "debug");
      System.setProperty("org.apache.commons.logging.simplelog.log.org.apache.http.headers", "debug");
      
      HttpClient httpClient   = new DefaultHttpClient();
      HttpPost httpPost     = new HttpPost(requestUri); 
      
      httpPost.addHeader("Authorization", authHeader);      
      httpPost.setEntity(new UrlEncodedFormEntity(params));
            
      HttpResponse httpResponse   = httpClient.execute(httpPost);
      
      if (httpResponse.getStatusLine().getStatusCode() == 200) {
        HttpEntity httpEntity     = httpResponse.getEntity();
          
        if (httpEntity == null) {
          throw new Exception("Return value is empty");
        }
          
        stream    = httpEntity.getContent();              
        response  = StringUtil.streamToString(stream);
        
        Debug.i("Response " + response);
      } else {
        throw new Exception(httpResponse.getStatusLine().getReasonPhrase());
      }
    } catch (Exception e) {
      throw e;
    } finally {
      if (stream != null) {
        stream.close();
      }
    }
    
    return response;
  }
  
  public String connectGet(String requestUri, List<NameValuePair> params) throws Exception {
    String response     = "";
    
    InputStream stream = null;
    
    try {
      HttpParams httpParams   = new HttpParams();
      
      String nonce      = OauthUtil.createNonce();
      String timestamp    = OauthUtil.getTimeStamp();
      
      httpParams.put("oauth_consumer_key",     new HttpValues(mOauthConsumer.getConsumerKey()));
      httpParams.put("oauth_nonce",         new HttpValues(nonce));
      httpParams.put("oauth_signature_method",   new HttpValues(OauthUtil.SIGNATURE_METHOD));
      httpParams.put("oauth_timestamp",       new HttpValues(timestamp));
      httpParams.put("oauth_token",         new HttpValues(mAcessToken.getToken()));
      httpParams.put("oauth_version",       new HttpValues(OauthUtil.OAUTH_VERSION));
      
      String requestUrl = requestUri;
      
      if (params != null) {
        StringBuilder requestParamSb = new StringBuilder();
        int size = params.size();
        
        for (int i = 0; i < size; i++) {
          BasicNameValuePair param = (BasicNameValuePair) params.get(i);
          
          httpParams.put(param.getName(), new HttpValues(param.getValue()));
          
          requestParamSb.append(param.getName() + "=" + param.getValue() + ((i != size-1) ? "&" : ""));
        }
        
        String requestParam  = requestParamSb.toString();
        
        requestUrl = requestUri + ((requestUri.contains("?")) ? "&" + requestParam : "?" + requestParam); 
       }
      
      OauthSignature reqSignature  = new OauthSignature();
      
      String sigBase    = reqSignature.createSignatureBase(REQUEST_GET, requestUri, httpParams.getQueryString());
      String signature  = reqSignature.createRequestSignature(sigBase, mOauthConsumer.getConsumerSecret(), mAcessToken.getSecret());
      
      String authHeader  = OauthHeader.buildRequestHeader( 
                  mOauthConsumer.getConsumerKey(), 
                  nonce,
                  signature, 
                  OauthUtil.SIGNATURE_METHOD, 
                  timestamp,
                  mAcessToken.getToken(),
                  OauthUtil.OAUTH_VERSION);
          
      Debug.i("Signature base " + sigBase);
      Debug.i("Signature " + signature);
      
      Debug.i("GET " + requestUrl);
      Debug.i("Authorization " + authHeader);

      java.util.logging.Logger.getLogger("org.apache.http.wire").setLevel(java.util.logging.Level.FINEST);
      java.util.logging.Logger.getLogger("org.apache.http.headers").setLevel(java.util.logging.Level.FINEST);

      System.setProperty("org.apache.commons.logging.Log", "org.apache.commons.logging.impl.SimpleLog");
      System.setProperty("org.apache.commons.logging.simplelog.showdatetime", "true");
      System.setProperty("org.apache.commons.logging.simplelog.log.httpclient.wire", "debug");
      System.setProperty("org.apache.commons.logging.simplelog.log.org.apache.http", "debug");
      System.setProperty("org.apache.commons.logging.simplelog.log.org.apache.http.headers", "debug");
      
      HttpClient httpClient   = new DefaultHttpClient();    
      HttpGet httpGet     = new HttpGet(requestUrl); 

      httpGet.addHeader("Authorization", authHeader);      
      
      HttpResponse httpResponse   = httpClient.execute(httpGet);    
      HttpEntity httpEntity     = httpResponse.getEntity();
        
      if (httpEntity == null) {
        throw new Exception("Return value is empty");
      }
          
      stream    = httpEntity.getContent();              
      response  = StringUtil.streamToString(stream);
        
      Debug.i("Response " + response);
      
      if (httpResponse.getStatusLine().getStatusCode() != 200) {
        throw new Exception(httpResponse.getStatusLine().getReasonPhrase());
      }
      
    } catch (Exception e) {
      throw e;
    } finally {
      if (stream != null) {
        stream.close();
      }
    }
    
    return response;
  }
}
Java Source Code List
