WINDUP-2101 Adding private signing key downloader (#11)

WINDUP-2101 Adding Google Drive file downloader

windup-release-jenkins/GoogleDriveFileDownloader.groovy

@@ -0,0 +1,122 @@
+import com.google.api.client.auth.oauth2.Credential;
+import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp;
+import com.google.api.client.extensions.java6.auth.oauth2.AbstractPromptReceiver;
+import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp;
+import com.google.api.client.extensions.java6.auth.oauth2.VerificationCodeReceiver;
+import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver;
+import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow;
+import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets;
+import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
+import com.google.api.client.http.javanet.NetHttpTransport;
+import com.google.api.client.json.JsonFactory;
+import com.google.api.client.json.jackson2.JacksonFactory;
+import com.google.api.client.util.store.FileDataStoreFactory;
+import com.google.api.services.drive.Drive;
+import com.google.api.services.drive.DriveScopes
+import com.google.api.services.drive.model.FileList;
+
+
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.security.GeneralSecurityException;
+import java.util.Collections;
+import java.util.List;
+
+@GrabConfig(systemClassLoader = true)
+@Grab('com.google.oauth-client:google-oauth-client:1.23.0')
+@Grab('com.google.api-client:google-api-client:1.23.0')
+@Grab('com.google.oauth-client:google-oauth-client-jetty:1.23.0')
+@Grab('com.google.apis:google-api-services-drive:v3-rev110-1.23.0')
+@Grab('com.google.apis:google-api-services-oauth2:v2-rev139-1.23.0')
+
+class GoogleDriveFileDownloader {
+
+    // User id used to access Google services
+    private static String USER_ID = "windupdocs@gmail.com"
+
+    private static final String APPLICATION_NAME = "perftest";
+    private static final JsonFactory jsonFactory = JacksonFactory.getDefaultInstance();
+
+    /**
+     * Global instance of the scopes required by this quickstart.
+     * If modifying these scopes, delete your previously saved credentials/ folder.
+     */
+    private static final List<String> SCOPES = Collections.singletonList(DriveScopes.DRIVE);
+    private static File CREDENTIALS_STORE_DIR = new File("/opt/perftest/.credentials/")
+    private static File CLIENT_SECRETS_FILE = new File(CREDENTIALS_STORE_DIR, "client_secrets.json")
+    private static final String TOKENS_DIRECTORY_PATH = "release-tokens";
+
+
+    /**
+     * Creates an authorized Credential object.
+     *
+     * @param HTTP_TRANSPORT The network HTTP Transport.
+     * @return An authorized Credential object.
+     * @throws IOException If the credentials.json file cannot be found.
+     */
+    private static Credential getCredentials(final NetHttpTransport transport) throws IOException {
+        FileDataStoreFactory dataStoreFactory = new FileDataStoreFactory(new java.io.File(CREDENTIALS_STORE_DIR, TOKENS_DIRECTORY_PATH));
+        Reader clientSecretsIS = new FileReader(CLIENT_SECRETS_FILE);
+        try {
+            GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(jsonFactory, clientSecretsIS);
+
+            // redirect to an authorization page
+            GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(transport, jsonFactory, clientSecrets, SCOPES)
+                    .setDataStoreFactory(dataStoreFactory)
+                    .setAccessType("offline")
+                    .build();
+            VerificationCodeReceiver codeReceiver = new AbstractPromptReceiver() {
+                @Override
+                String getRedirectUri() throws Exception {
+                    return "http://localhost";
+                }
+
+                @Override
+                String waitForCode() {
+                    String url = flow.newAuthorizationUrl().setRedirectUri(getRedirectUri()).build();
+                    System.out.println("Browse here and get the token:")
+                    System.out.println(url);
+                    return super.waitForCode()
+                }
+            };
+
+
+            AuthorizationCodeInstalledApp installedApp = new AuthorizationCodeInstalledApp(flow, codeReceiver);
+            return installedApp.authorize(USER_ID);
+        } finally {
+            clientSecretsIS.close();
+        }
+    }
+
+    static void main(String... args) throws IOException, GeneralSecurityException {
+        if (args.length < 1)
+        {
+            println("ERROR: file ID to download missing, please provide one as first argument of this command.");
+            System.exit(1);
+        }
+        String fileId = args[0];
+
+        final NetHttpTransport HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport();
+        final Credential credential = getCredentials(HTTP_TRANSPORT)
+        Drive driveService = new Drive.Builder(HTTP_TRANSPORT, jsonFactory, credential)
+                .setApplicationName(APPLICATION_NAME)
+                .build();
+
+        String fileName = "";
+        if (args.length == 2)
+        {
+            fileName = args[1];
+        } else
+        {
+            fileName = driveService.files().get(fileId).execute().getName();
+        }
+
+        OutputStream outputStream = new FileOutputStream(fileName);
+        driveService.files().get(fileId)
+                .executeMediaAndDownloadTo(outputStream);
+    }
+}