I am working on a Spring-MVC application running on tomcat in which I would like to use Google drive functionality. I tried with a service account on my local machine and I had no problems. But when I uploaded the code on server, the browser URL wont be opened. Then I thought, I should not use a service account, I should use a normal web-application account. Now when I do that, I get a redirect_uri_mismatch.
I don't understand one thing, I am setting the redirect URL in flow, in the JSON, why on earth is it getting the redirect_url with random port numbers. If I change the port number in the browser URL, it works fine. But still on server it wont open the browser url, I can see it in tomcat logs, but the damn thing does not open the URL.
Here are my redirect URL from Google app :
http://localhost/authorizeuser
http://localhost:8080/
http://localhost:8080
http://localhost
http://localhost:8080/Callback
https://testserver.net/Callback
http://testserver.net/Callback
http://127.0.0.1
Here is my client_secret.json :
{"web": {
"client_id": "clientid",
"auth_uri": "https://accounts.google.com/o/oauth2/auth",
"token_uri": "https://accounts.google.com/o/oauth2/token",
"auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
"client_email": "clientemailstuff",
"client_x509_cert_url": "certurlstuff",
"client_secret": "itsasecret",
"redirect_uris": ["http://localhost:8080/","http://localhost:8080"],
"javascript_origins": ["https://testserver.net", "http://testserver.net","http://localhost:8080"]
}}
And here is the code where I am trying to authenticate :
@Override
public Credential authorize() throws IOException {
InputStream in =
DriveQuickstartImpl.class.getResourceAsStream("/client_secret.json");
GoogleClientSecrets clientSecrets =
GoogleClientSecrets.load(JSON_FACTORY, new InputStreamReader(in));
GoogleAuthorizationCodeFlow flow =
new GoogleAuthorizationCodeFlow.Builder(
HTTP_TRANSPORT, JSON_FACTORY, clientSecrets, SCOPES)
.setDataStoreFactory(DATA_STORE_FACTORY)
.setAccessType("offline")
.build();
flow.newAuthorizationUrl().setState("xyz").setRedirectUri("http://localhost:8080/Callback");
Credential credential = new AuthorizationCodeInstalledApp(
flow, new LocalServerReceiver()).authorize("user");
if(credential!=null && credential.getRefreshToken() != null){
storeCredentials(credential);
}
return credential;
}
This is majorly pissing me off as I am setting the redirect url, and it is just being ignored and why on earth a browser tab wont be opened when application is deployed on server.
Update Spring problem also fixed, the below code can be used for GoogleDrive authorization on a server with tomcat or others.
@Service
@Transactional
public class GoogleAuthorization{
@Autowired
private DriveQuickstart driveQuickstart;
private static final String APPLICATION_NAME ="APPNAME";
private static final java.io.File DATA_STORE_DIR = new java.io.File(
"/home/deploy/store");
private static FileDataStoreFactory DATA_STORE_FACTORY;
private static final JsonFactory JSON_FACTORY =
JacksonFactory.getDefaultInstance();
private static HttpTransport HTTP_TRANSPORT;
private static final List<String> SCOPES =
Arrays.asList(DriveScopes.DRIVE);
private static final String clientid = "clientid";
private static final String clientsecret = "clientsecret";
private static final String CALLBACK_URI = "http://localhost:8080/getgooglelogin";
private String stateToken;
private final GoogleAuthorizationCodeFlow flow;
public GoogleAuthorization(){
try {
HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport();
DATA_STORE_FACTORY = new FileDataStoreFactory(DATA_STORE_DIR);
} catch (GeneralSecurityException | IOException e) {
e.printStackTrace();
}
flow = new GoogleAuthorizationCodeFlow.Builder(HTTP_TRANSPORT,
JSON_FACTORY, clientid, clientsecret, SCOPES).setAccessType("offline").setApprovalPrompt("force").build();
generateStateToken();
}
/**
* Builds a login URL based on client ID, secret, callback URI, and scope
*/
public String buildLoginUrl() {
final GoogleAuthorizationCodeRequestUrl url = flow.newAuthorizationUrl();
return url.setRedirectUri(CALLBACK_URI).setState(stateToken).build();
}
/**
* Generates a secure state token
*/
private void generateStateToken(){
SecureRandom sr1 = new SecureRandom();
stateToken = "google;"+sr1.nextInt();
}
/**s
* Accessor for state token
*/
public String getStateToken(){
return stateToken;
}
/**
* Expects an Authentication Code, and makes an authenticated request for the user's profile information
* * @param authCode authentication code provided by google
*/
public void saveCredentials(final String authCode) throws IOException {
GoogleTokenResponse response = flow.newTokenRequest(authCode).setRedirectUri(CALLBACK_URI).execute();
Credential credential = flow.createAndStoreCredential(response, null);
System.out.println(" Credential access token is "+credential.getAccessToken());
System.out.println("Credential refresh token is "+credential.getRefreshToken());
// The line below gives me a NPE.
this.driveQuickstart.storeCredentials(credential);
}
}
Controller method :
@RequestMapping(value = "/getgooglelogin")
public String getGoogleLogin(HttpServletRequest request, HttpServletResponse response, HttpSession session,Model model) {
// Below guy should be autowired if you want to use Spring.
GoogleAuthorization helper = new GoogleAuthorization();
if (request.getParameter("code") == null
|| request.getParameter("state") == null) {
model.addAttribute("URL", helper.buildLoginUrl());
session.setAttribute("state", helper.getStateToken());
} else if (request.getParameter("code") != null && request.getParameter("state") != null && request.getParameter("state").equals(session.getAttribute("state"))) {
session.removeAttribute("state");
try {
helper.saveCredentials(request.getParameter("code"));
return "redirect:/dashboard";
} catch (IOException e) {
e.printStackTrace();
}
}
return "newjsp";
}
newjsp just has a button to click on the URL.
