org.owasp.goatdroid.herdfinancial.requestresponse.RestClient.java Source code

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Here is the source code for org.owasp.goatdroid.herdfinancial.requestresponse.RestClient.java

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/**
 * OWASP GoatDroid Project
 * 
 * This file is part of the Open Web Application Security Project (OWASP)
 * GoatDroid project. For details, please see
 * https://www.owasp.org/index.php/Projects/OWASP_GoatDroid_Project
 *
 * Copyright (c) 2012 - The OWASP Foundation
 * 
 * GoatDroid is published by OWASP under the GPLv3 license. You should read and accept the
 * LICENSE before you use, modify, and/or redistribute this software.
 * 
 * @author Jack Mannino (Jack.Mannino@owasp.org https://www.owasp.org/index.php/User:Jack_Mannino)
 * @created 2012
 */
package org.owasp.goatdroid.herdfinancial.requestresponse;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.HashMap;
import org.apache.http.HttpEntity;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
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.client.methods.HttpUriRequest;
import org.apache.http.conn.params.ConnRoutePNames;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HTTP;
import org.owasp.goatdroid.herdfinancial.misc.Utils;
import android.content.Context;

/* credit goes to: 
 * http://lukencode.com/2010/04/27/calling-web-services-in-android-using-httpclient/
 * for this clean to implement and handy class
 */
public class RestClient {

    private ArrayList<NameValuePair> params;
    private ArrayList<NameValuePair> headers;
    private String url;
    private int responseCode;
    private String message;
    private String response;

    public String getResponse() {
        return response;
    }

    public String getErrorMessage() {
        return message;
    }

    public int getResponseCode() {
        return responseCode;
    }

    public RestClient(String url) {
        this.url = url;
        params = new ArrayList<NameValuePair>();
        headers = new ArrayList<NameValuePair>();
    }

    public void AddParam(String name, String value) {
        params.add(new BasicNameValuePair(name, value));
    }

    public void AddHeader(String name, String value) {
        headers.add(new BasicNameValuePair(name, value));
    }

    public void Execute(RequestMethod method, Context context) throws Exception {
        switch (method) {
        case GET: {
            // add parameters
            String combinedParams = "";
            if (!params.isEmpty()) {
                combinedParams += "?";
                for (NameValuePair p : params) {
                    String paramString = p.getName() + "=" + URLEncoder.encode(p.getValue(), "UTF-8");
                    if (combinedParams.length() > 1) {
                        combinedParams += "&" + paramString;
                    } else {
                        combinedParams += paramString;
                    }
                }
            }

            HttpGet request = new HttpGet(url + combinedParams);

            // add headers
            for (NameValuePair h : headers) {
                request.addHeader(h.getName(), h.getValue());
            }

            executeRequest(request, url, context);
            break;
        }
        case POST: {
            HttpPost request = new HttpPost(url);
            // add headers
            for (NameValuePair h : headers) {
                request.addHeader(h.getName(), h.getValue());
            }

            if (!params.isEmpty()) {
                request.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
            }

            executeRequest(request, url, context);
            break;
        }
        }
    }

    private void executeRequest(HttpUriRequest request, String url, Context context) {

        HttpClient client = CustomSSLSocketFactory.getNewHttpClient();
        HashMap<String, String> proxyInfo = Utils.getProxyMap(context);
        String proxyHost = proxyInfo.get("proxyHost");
        String proxyPort = proxyInfo.get("proxyPort");

        if (!(proxyHost.equals("") || proxyPort.equals(""))) {
            HttpHost proxy = new HttpHost(proxyHost, Integer.parseInt(proxyPort));
            client.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);
        }
        HttpResponse httpResponse;

        try {
            httpResponse = client.execute(request);
            responseCode = httpResponse.getStatusLine().getStatusCode();
            message = httpResponse.getStatusLine().getReasonPhrase();

            HttpEntity entity = httpResponse.getEntity();

            if (entity != null) {

                InputStream instream = entity.getContent();
                response = convertStreamToString(instream);

                // Closing the input stream will trigger connection release
                instream.close();
            }

        } catch (ClientProtocolException e) {
            client.getConnectionManager().shutdown();
        } catch (IOException e) {
            client.getConnectionManager().shutdown();
        }
    }

    private static String convertStreamToString(InputStream is) {

        BufferedReader reader = new BufferedReader(new InputStreamReader(is));
        StringBuilder sb = new StringBuilder();

        String line = null;
        try {
            while ((line = reader.readLine()) != null) {
                sb.append(line + "\n");
            }
        } catch (IOException e) {
        } finally {
            try {
                is.close();
            } catch (IOException e) {
            }
        }
        return sb.toString();
    }
}