me.emily.oauth2.OAuth2Native.java Source code

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Here is the source code for me.emily.oauth2.OAuth2Native.java

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/*
 * Copyright (c) 2011 Google Inc.
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package me.emily.oauth2;

import java.io.IOException;
import java.util.Map;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.api.client.auth.oauth2.Credential;
import com.google.api.client.auth.oauth2.CredentialStore;
import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow;
import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets;
import com.google.api.client.googleapis.auth.oauth2.GoogleOAuthConstants;
import com.google.api.client.googleapis.auth.oauth2.GoogleTokenResponse;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.common.collect.Iterables;
import com.google.inject.Inject;

public class OAuth2Native {
    private static final Logger log = LoggerFactory.getLogger(OAuth2Native.class);

    @Inject
    private GoogleClientSecrets clientSecrets;
    @Inject
    private CredentialStore credentialStore;
    @Inject
    private JsonFactory jsonFactory;
    @Inject
    private HttpTransport transport;

    public OAuth2Native() {
        super();
    }

    public Credential authorize(String code, Iterable<String> scopes) throws IOException {

        GoogleAuthorizationCodeFlow flow = startFlow(scopes);

        GoogleTokenResponse response = flow.newTokenRequest(code)
                .setRedirectUri(GoogleOAuthConstants.OOB_REDIRECT_URI).execute();

        log.info("/------------ Response ");
        log.info("|  Id: {}", response.getIdToken());
        log.info("|  Token: {}", response.getAccessToken());
        log.info("|  Refresh token: {}", response.getRefreshToken());
        log.info("|  Expiry: {}", response.getExpiresInSeconds());
        log.info("|  Type: {}", response.getTokenType());
        log.info("|  Scope: {}", response.getScope());
        for (Map.Entry<String, Object> entry : response.getUnknownKeys().entrySet()) {
            log.info("|  {}: {}", entry.getKey(), entry.getValue());
        }
        log.info("\\------------");

        Credential creds = flow.createAndStoreCredential(response, null);

        return creds;
    }

    public String requestAccess(Iterable<String> scopes) {
        GoogleAuthorizationCodeFlow flow = startFlow(scopes);

        String build = flow.newAuthorizationUrl()
                .setRedirectUri(Iterables.getFirst(clientSecrets.getInstalled().getRedirectUris(), "")).build();

        return build;

    }

    private GoogleAuthorizationCodeFlow startFlow(Iterable<String> scopes) {
        return new GoogleAuthorizationCodeFlow.Builder(transport, jsonFactory, clientSecrets, scopes)
                .setAccessType("offline").setApprovalPrompt("auto").build();
    }

}