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package org.sufficientlysecure.keychain.pgp.linked.resources;
import android.content.Context;
import android.util.Base64;
import com.textuality.keybase.lib.JWalk;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpRequestBase;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.BasicHttpParams;
import org.json.JSONException;
import org.json.JSONObject;
import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
import org.sufficientlysecure.keychain.pgp.linked.LinkedCookieResource;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.URI;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Set;
public class TwitterResource extends LinkedCookieResource {
TwitterResource(Set<String> flags, HashMap<String,String> params, URI uri) {
super(flags, params, uri);
}
public static String generateText (Context context, byte[] fingerprint, String nonce) {
// nothing special here for now, might change this later
return LinkedCookieResource.generate(context, fingerprint, nonce);
}
private String getTwitterStream(String screenName) {
String results = null;
// Step 1: Encode consumer key and secret
try {
// URL encode the consumer key and secret
String urlApiKey = URLEncoder.encode("6IhPnWbYxASAoAzH2QaUtHD0J", "UTF-8");
String urlApiSecret = URLEncoder.encode("L0GnuiOnapWbSBbQtLIqtpeS5BTtvh06dmoMoKQfHQS8UwHuWm", "UTF-8");
// Concatenate the encoded consumer key, a colon character, and the
// encoded consumer secret
String combined = urlApiKey + ":" + urlApiSecret;
// Base64 encode the string
String base64Encoded = Base64.encodeToString(combined.getBytes(), Base64.NO_WRAP);
// Step 2: Obtain a bearer token
HttpPost httpPost = new HttpPost("https://api.twitter.com/oauth2/token");
httpPost.setHeader("Authorization", "Basic " + base64Encoded);
httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");
httpPost.setEntity(new StringEntity("grant_type=client_credentials"));
JSONObject rawAuthorization = new JSONObject(getResponseBody(httpPost));
String auth = JWalk.getString(rawAuthorization, "access_token");
// Applications should verify that the value associated with the
// token_type key of the returned object is bearer
if (auth != null && JWalk.getString(rawAuthorization, "token_type").equals("bearer")) {
// Step 3: Authenticate API requests with bearer token
HttpGet httpGet =
new HttpGet("https://api.twitter.com/1.1/statuses/user_timeline.json?screen_name=" + screenName);
// construct a normal HTTPS request and include an Authorization
// header with the value of Bearer <>
httpGet.setHeader("Authorization", "Bearer " + auth);
httpGet.setHeader("Content-Type", "application/json");
// update the results with the body of the response
results = getResponseBody(httpGet);
}
} catch (UnsupportedEncodingException ex) {
} catch (JSONException ex) {
} catch (IllegalStateException ex1) {
}
return results;
}
private static String getResponseBody(HttpRequestBase request) {
StringBuilder sb = new StringBuilder();
try {
DefaultHttpClient httpClient = new DefaultHttpClient(new BasicHttpParams());
HttpResponse response = httpClient.execute(request);
int statusCode = response.getStatusLine().getStatusCode();
String reason = response.getStatusLine().getReasonPhrase();
if (statusCode == 200) {
HttpEntity entity = response.getEntity();
InputStream inputStream = entity.getContent();
BufferedReader bReader = new BufferedReader(
new InputStreamReader(inputStream, "UTF-8"), 8);
String line = null;
while ((line = bReader.readLine()) != null) {
sb.append(line);
}
} else {
sb.append(reason);
}
} catch (UnsupportedEncodingException ex) {
} catch (ClientProtocolException ex1) {
} catch (IOException ex2) {
}
return sb.toString();
}
@Override
protected String fetchResource(OperationLog log, int indent) {
return getTwitterStream("Valodim");
}
}
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