I am trying to access Basecamp API from my Android/Java source code following way ....
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.DefaultHttpClient;
import android.app.Activity;
import android.os.Bundle;
import android.webkit.WebView;
public class BCActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
DefaultHttpClient httpClient = new DefaultHttpClient();
//final String url = "https://encrypted.google.com/webhp?hl=en"; //This url works
final String url = "https://username:[email protected]/people.xml"; //This don't
HttpGet http = new HttpGet(url);
http.addHeader("Accept", "application/xml");
http.addHeader("Content-Type", "application/xml");
try {
// HttpResponse response = httpClient.execute(httpPost);
HttpResponse response = httpClient.execute(http);
StatusLine statusLine = response.getStatusLine();
System.out.println("statusLine : "+ statusLine.toString());
ResponseHandler <String> res = new BasicResponseHandler();
String strResponse = httpClient.execute(http, res);
System.out.println("________**_________________________\n"+strResponse);
System.out.println("\n________**_________________________\n");
} catch (Exception e) {
e.printStackTrace();
}
WebView myWebView = (WebView) this.findViewById(R.id.webView);
myWebView.loadUrl(url);//Here it works and displays XML response
}
}
This URL displays the response in WebView
, but shows Unauthorized exception when I try to access through HttpClient
as shown above.
Is this is right way to access Basecamp API through Android/Java? or Please provide me a right way to do so.
The HttpClient can't take the login creditals from the URI.
You have to give them with specified methods.
If you use HttpClient 4.x have a look on this:
http://hc.apache.org/httpcomponents-client-ga/tutorial/html/authentication.html
But notice if you don't want to use the new version on the HttpClient (Android uses version 3.x), you should look here:
http://hc.apache.org/httpclient-3.x/authentication.html
That was the theory, now we use them:
Basically we use HTTP, but if you want to use HTTPS, you have to edit the following assignment new HttpHost("www.google.com", 80, "http")
into new HttpHost("www.google.com", 443, "https")
.
Furthermore you have to edit the host (www.google.com) for your concerns.
Notice: Only the full qualified domain name (FQDN) is needed not the full URI.
HttpClient 3.x:
package com.test;
import org.apache.http.HttpEntity;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import android.app.Activity;
import android.os.Bundle;
public class Test2aActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
try {
HttpHost targetHost = new HttpHost("www.google.com", 80, "http");
DefaultHttpClient httpclient = new DefaultHttpClient();
try {
// Store the user login
httpclient.getCredentialsProvider().setCredentials(
new AuthScope(targetHost.getHostName(), targetHost.getPort()),
new UsernamePasswordCredentials("user", "password"));
// Create request
// You can also use the full URI http://www.google.com/
HttpGet httpget = new HttpGet("/");
// Execute request
HttpResponse response = httpclient.execute(targetHost, httpget);
HttpEntity entity = response.getEntity();
System.out.println(EntityUtils.toString(entity));
} finally {
httpclient.getConnectionManager().shutdown();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
HttpClient 4.x:
Attention: You will need the new HttpClient from Apache and additionally you must rearrange the order, that the jar-file is before the Android library.
package com.test;
import org.apache.http.HttpEntity;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.AuthCache;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.protocol.ClientContext;
import org.apache.http.impl.auth.BasicScheme;
import org.apache.http.impl.client.BasicAuthCache;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.protocol.BasicHttpContext;
import org.apache.http.util.EntityUtils;
import android.app.Activity;
import android.os.Bundle;
public class TestActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
try {
HttpHost targetHost = new HttpHost("www.google.com", 80, "http");
DefaultHttpClient httpclient = new DefaultHttpClient();
try {
// Store the user login
httpclient.getCredentialsProvider().setCredentials(
new AuthScope(targetHost.getHostName(), targetHost.getPort()),
new UsernamePasswordCredentials("user", "password"));
// Create AuthCache instance
AuthCache authCache = new BasicAuthCache();
// Generate BASIC scheme object and add it to the local
// auth cache
BasicScheme basicAuth = new BasicScheme();
authCache.put(targetHost, basicAuth);
// Add AuthCache to the execution context
BasicHttpContext localcontext = new BasicHttpContext();
localcontext.setAttribute(ClientContext.AUTH_CACHE, authCache);
// Create request
// You can also use the full URI http://www.google.com/
HttpGet httpget = new HttpGet("/");
// Execute request
HttpResponse response = httpclient.execute(targetHost, httpget, localcontext);
HttpEntity entity = response.getEntity();
System.out.println(EntityUtils.toString(entity));
} finally {
httpclient.getConnectionManager().shutdown();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}