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package com.github.scribejava.apis.examples;
import java.nio.charset.Charset;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
import com.github.scribejava.core.builder.ServiceBuilder;
import com.github.scribejava.apis.RenrenApi;
import com.github.scribejava.core.model.OAuth2AccessToken;
import com.github.scribejava.core.model.OAuthConstants;
import com.github.scribejava.core.model.OAuthRequest;
import com.github.scribejava.core.model.Response;
import com.github.scribejava.core.model.Verb;
import com.github.scribejava.core.oauth.OAuth20Service;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Formatter;
import java.util.List;
import java.util.concurrent.ExecutionException;
public class RenrenExample {
private static final String NETWORK_NAME = "Renren";
private static final String PROTECTED_RESOURCE_URL = "http://api.renren.com/restserver.do";
private RenrenExample() {
}
@SuppressWarnings("PMD.SystemPrintln")
public static void main(String... args) throws IOException, InterruptedException, ExecutionException {
// Replace these with your own api key and secret
final String apiKey = "your api key";
final String apiSecret = "your api secret";
final OAuth20Service service = new ServiceBuilder(apiKey)
.apiSecret(apiSecret)
.defaultScope("status_update publish_feed")
.callback("http://your.doman.com/oauth/renren")
.build(RenrenApi.instance());
final Scanner in = new Scanner(System.in);
System.out.println("=== " + NETWORK_NAME + "'s OAuth Workflow ===");
System.out.println();
// Obtain the Authorization URL
System.out.println("Fetching the Authorization URL...");
final String authorizationUrl = service.getAuthorizationUrl();
System.out.println("Got the Authorization URL!");
System.out.println("Now go and authorize ScribeJava here:");
System.out.println(authorizationUrl);
System.out.println("And paste the authorization code here");
System.out.print(">>");
final String code = in.nextLine();
System.out.println();
System.out.println("Trading the Authorization Code for an Access Token...");
final OAuth2AccessToken accessToken = service.getAccessToken(code);
System.out.println("Got the Access Token!");
System.out.println("(The raw response looks like this: " + accessToken.getRawResponse() + "')");
System.out.println();
// Now let's go and ask for a protected resource!
System.out.println("Now we're going to access a protected resource...");
final OAuthRequest request = new OAuthRequest(Verb.POST, PROTECTED_RESOURCE_URL);
final Map<String, String> parameters = new HashMap<>();
parameters.put("method", "users.getInfo");
parameters.put("format", "json");
parameters.put("v", "1.0");
final List<String> sigString = new ArrayList<>(parameters.size() + 1);
for (Map.Entry<String, String> parameter : parameters.entrySet()) {
request.addQuerystringParameter(parameter.getKey(), parameter.getValue());
sigString.add(String.format("%s=%s", parameter.getKey(), parameter.getValue()));
}
sigString.add(String.format("%s=%s", OAuthConstants.ACCESS_TOKEN, accessToken.getAccessToken()));
Collections.sort(sigString);
final StringBuilder sigBuilder = new StringBuilder();
for (String param : sigString) {
sigBuilder.append(param);
}
sigBuilder.append(apiSecret);
final String sig = sigBuilder.toString();
System.out.println("Sig string: " + sig);
request.addQuerystringParameter("sig", md5(sig));
service.signRequest(accessToken, request);
try (Response response = service.execute(request)) {
System.out.println("Got it! Lets see what we found...");
System.out.println();
System.out.println(response.getCode());
System.out.println(response.getBody());
}
System.out.println();
System.out.println("Thats it man! Go and build something awesome with ScribeJava! :)");
}
public static String md5(String orgString) {
try {
final MessageDigest md = MessageDigest.getInstance("MD5");
final byte[] array = md.digest(orgString.getBytes(Charset.forName("UTF-8")));
final Formatter builder = new Formatter();
for (byte b : array) {
builder.format("%02x", b);
}
return builder.toString();
} catch (NoSuchAlgorithmException e) {
throw new IllegalStateException("MD5 is unsupported?", e);
}
}
}