Используйте этот код для доступа к учетным данным Google Gmail oAuth2:
Имя класса: OAuthHelper
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.Map.Entry;
import java.util.SortedSet;
import oauth.signpost.OAuth;
import oauth.signpost.OAuthConsumer;
import oauth.signpost.OAuthProvider;
import oauth.signpost.commonshttp.CommonsHttpOAuthConsumer;
import oauth.signpost.commonshttp.CommonsHttpOAuthProvider;
import oauth.signpost.commonshttp.HttpRequestAdapter;
import oauth.signpost.exception.OAuthCommunicationException;
import oauth.signpost.exception.OAuthExpectationFailedException;
import oauth.signpost.exception.OAuthMessageSignerException;
import oauth.signpost.exception.OAuthNotAuthorizedException;
import oauth.signpost.http.HttpParameters;
import oauth.signpost.signature.HmacSha1MessageSigner;
import oauth.signpost.signature.OAuthMessageSigner;
import org.apache.commons.codec.binary.Base64;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import android.util.Log;
public class OAuthHelper {
private static final String TAG = "OAuthHelper";
private OAuthConsumer mConsumer;
private OAuthProvider mProvider;
private String mCallbackUrl;
public OAuthHelper(String consumerKey, String consumerSecret, String scope, String callbackUrl) throws UnsupportedEncodingException {
mConsumer = new CommonsHttpOAuthConsumer(consumerKey, consumerSecret);
mProvider = new CommonsHttpOAuthProvider("https://www.google.com/accounts/OAuthGetRequestToken?scope=" + URLEncoder.encode(scope, "utf-8"), "https://www.google.com/accounts/OAuthGetAccessToken", "https://www.google.com/accounts/OAuthAuthorizeToken?hd=default");
mProvider.setOAuth10a(true);
mCallbackUrl = (callbackUrl == null ? OAuth.OUT_OF_BAND : callbackUrl);
}
public String getRequestToken() throws OAuthMessageSignerException, OAuthNotAuthorizedException, OAuthExpectationFailedException, OAuthCommunicationException {
String authUrl = mProvider.retrieveRequestToken(mConsumer, mCallbackUrl);
System.out.println("Gautam AUTH URL : " + authUrl);
return authUrl;
}
public String[] getAccessToken(String verifier) throws OAuthMessageSignerException, OAuthNotAuthorizedException, OAuthExpectationFailedException, OAuthCommunicationException {
mProvider.retrieveAccessToken(mConsumer, verifier);
return new String[] { mConsumer.getToken(), mConsumer.getTokenSecret() };
}
public String[] getToken() {
return new String[] { mConsumer.getToken(), mConsumer.getTokenSecret() };
}
public void setToken(String token, String secret) {
mConsumer.setTokenWithSecret(token, secret);
}
public String getUrlContent(String url) throws OAuthMessageSignerException, OAuthExpectationFailedException, OAuthCommunicationException, IOException {
HttpGet request = new HttpGet(url);
// sign the request
mConsumer.sign(request);
// send the request
HttpClient httpClient = new DefaultHttpClient();
HttpResponse response = httpClient.execute(request);
// get content
BufferedReader in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
StringBuffer sb = new StringBuffer("");
String line = "";
String NL = System.getProperty("line.separator");
while ((line = in.readLine()) != null)
sb.append(line + NL);
in.close();
System.out.println("gautam INFO : " + sb.toString());
return sb.toString();
}
public String getUserProfile(String t0, String t1, String url) {
try {
OAuthConsumer consumer = new CommonsHttpOAuthConsumer(t0, t1);
HttpGet request = new HttpGet(url);
// sign the request
consumer.sign(request);
// send the request
HttpClient httpClient = new DefaultHttpClient();
HttpResponse response = httpClient.execute(request);
BufferedReader in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
StringBuffer sb = new StringBuffer("");
String line = "";
//String NL = System.getProperty("line.separator");
while ((line = in.readLine()) != null)
sb.append(line );
in.close();
System.out.println("Gautam Profile : " + sb.toString());
return sb.toString();
} catch (Exception e) {
System.out.println("Error in Geting profile Info : " + e);
return "";
}
}
public String buildXOAuth(String email) {
String url = String.format("https://mail.google.com/mail/b/%s/smtp/", email);
HttpRequestAdapter request = new HttpRequestAdapter(new HttpGet(url));
// Sign the request, the consumer will add any missing parameters
try {
mConsumer.sign(request);
} catch (OAuthMessageSignerException e) {
Log.e(TAG, "failed to sign xoauth http request " + e);
return null;
} catch (OAuthExpectationFailedException e) {
Log.e(TAG, "failed to sign xoauth http request " + e);
return null;
} catch (OAuthCommunicationException e) {
Log.e(TAG, "failed to sign xoauth http request " + e);
return null;
}
HttpParameters params = mConsumer.getRequestParameters();
// Since signpost doesn't put the signature into params,
// we've got to create it again.
OAuthMessageSigner signer = new HmacSha1MessageSigner();
signer.setConsumerSecret(mConsumer.getConsumerSecret());
signer.setTokenSecret(mConsumer.getTokenSecret());
String signature;
try {
signature = signer.sign(request, params);
} catch (OAuthMessageSignerException e) {
Log.e(TAG, "invalid oauth request or parameters " + e);
return null;
}
params.put(OAuth.OAUTH_SIGNATURE, OAuth.percentEncode(signature));
StringBuilder sb = new StringBuilder();
sb.append("GET ");
sb.append(url);
sb.append(" ");
int i = 0;
for (Entry<String, SortedSet<String>> entry : params.entrySet()) {
String key = entry.getKey();
String value = entry.getValue().first();
int size = entry.getValue().size();
if (size != 1)
Log.d(TAG, "warning: " + key + " has " + size + " values");
if (i++ != 0)
sb.append(",");
sb.append(key);
sb.append("=\"");
sb.append(value);
sb.append("\"");
}
Log.d(TAG, "xoauth encoding " + sb);
Base64 base64 = new Base64();
try {
byte[] buf = base64.encode(sb.toString().getBytes("utf-8"));
return new String(buf, "utf-8");
} catch (UnsupportedEncodingException e) {
Log.e(TAG, "invalid string " + sb);
}
return null;
}
}
// ===================================
Создать: WebViewActivity.class
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.Window;
import android.webkit.CookieManager;
import android.webkit.CookieSyncManager;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class WebViewActivity extends Activity {
//WebView webview;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_PROGRESS);
WebView webview = new WebView(this);
webview.getSettings().setJavaScriptEnabled(true);
setContentView(webview);
// Load the page
Intent intent = getIntent();
if (intent.getData() != null) {
webview.loadUrl(intent.getDataString());
}
webview.setWebChromeClient(new WebChromeClient() {
// Show loading progress in activity's title bar.
@Override
public void onProgressChanged(WebView view, int progress) {
setProgress(progress * 100);
}
});
webview.setWebViewClient(new WebViewClient() {
// When start to load page, show url in activity's title bar
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
setTitle(url);
if (url.startsWith("my-activity")) {
Intent result = new Intent();
System.out.println("Gautam my-activity : " + url);
result.putExtra("myurl", url);
setResult(RESULT_OK, result);
finish();
}
}
@Override
public void onPageFinished(WebView view, String url) {
System.out.println("Gautam Page Finish...");
CookieSyncManager.getInstance().sync();
// Get the cookie from cookie jar.
String cookie = CookieManager.getInstance().getCookie(url);
System.out.println("Gautam Cookie : " + cookie);
if (cookie == null) {
return;
}
// Cookie is a string like NAME=VALUE [; NAME=VALUE]
String[] pairs = cookie.split(";");
for (int i = 0; i < pairs.length; ++i) {
String[] parts = pairs[i].split("=", 2);
// If token is found, return it to the calling activity.
System.out.println("Gautam=> "+ parts[0] + " = " + parts[1]);
if (parts.length == 2 && parts[0].equalsIgnoreCase("oauth_token")) {
Intent result = new Intent();
System.out.println("Gautam AUTH : " + parts[1]);
result.putExtra("token", parts[1]);
setResult(RESULT_OK, result);
finish();
}
}
}
});
}
}
// =========================
Вызов: MainActivity.class
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import oauth.signpost.OAuthConsumer;
import oauth.signpost.commonshttp.CommonsHttpOAuthConsumer;
import oauth.signpost.http.HttpResponse;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class MainActivity extends Activity implements OnClickListener{
Button btnLogin;
OAuthHelper MyOuthHelper;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnLogin = (Button)findViewById(R.id.btnLogin);
btnLogin.setOnClickListener(this);
}
@Override
protected void onResume() {
/*System.out.println("On Resume call ");
try {
String[] token = getVerifier();
if (token != null){
String accessToken[] = MyOuthHelper.getAccessToken(token[1]);
}
} catch (Exception e) {
System.out.println("gautam error on Resume : " + e);
}*/
super.onResume();
}
private String[] getVerifier(String url) {
// extract the token if it exists
Uri uri = Uri.parse(url);
if (uri == null) {
return null;
}
String token = uri.getQueryParameter("oauth_token");
String verifier = uri.getQueryParameter("oauth_verifier");
return new String[] { token, verifier };
}
@Override
public void onClick(View v) {
try {
MyOuthHelper = new OAuthHelper("YOUR CLIENT ID", "YOUR SECRET KEY", "https://www.googleapis.com/auth/userinfo.profile", "my-activity://localhost");
} catch (Exception e) {
System.out.println("gautam errorin Class call : " + e);
}
try {
String uri = MyOuthHelper.getRequestToken();
Intent intent = new Intent(MainActivity.this, WebViewActivity.class);
intent.setData(Uri.parse(uri));
startActivityForResult(intent, 0);
/* startActivity(new Intent("android.intent.action.VIEW",
Uri.parse(uri)));*/
} catch (Exception e) {
System.out.println("Gautm Error in getRequestTokan : " + e);
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case 0:
if (resultCode != RESULT_OK || data == null) {
return;
}
// Get the token.
String url = data.getStringExtra("myurl");
try {
String[] token = getVerifier(url);
if (token != null){
String accessToken[] = MyOuthHelper.getAccessToken(token[1]);
System.out.println("Gautam Final [0] : " + accessToken[0] + " , [1] : " + accessToken[1]);
//https://www.googleapis.com/oauth2/v1/userinfo?alt=json
// String myProfile = MyOuthHelper.getUserProfile(accessToken[0], accessToken[1], "https://www.googleapis.com/oauth2/v1/userinfo?alt=json");
String myProfile = MyOuthHelper.getUrlContent("https://www.googleapis.com/oauth2/v1/userinfo?alt=json");
}
} catch (Exception e) {
System.out.println("gautam error on Resume : " + e);
}
return;
}
super.onActivityResult(requestCode, resultCode, data);
}
}
// =================================
И, наконец, информация о вашем профиле приходит, просто посмотрите в распечатке вашего сообщения Logcat.
Примечание. Не забудьте добавить разрешение на доступ в Интернет в файле манифеста
И ваше приложение зарегистрируйтесь в консоли Google для идентификатора клиента и секретного ключа
Для регистрации приложения, пожалуйста, смотрите этот шаг: Шаг регистрации приложения