使用 GMAIL AutoForwarding 创建时权限不足

Question

String[] googleSCOPES = {GmailScopes.GMAIL_LABELS, GmailScopes.GMAIL_READONLY, GmailScopes.MAIL_GOOGLE_COM};

            GoogleAccountCredential googleAccountCredential = GoogleAccountCredential.usingOAuth2(
                    context, Arrays.asList(googleSCOPES))
                    .setBackOff(new ExponentialBackOff());
            googleAccountCredential.setSelectedAccountName(appSettings.retrieve(Params.GMAIL_ACCOUNT_NAME));
            com.google.api.services.gmail.Gmail mService = new com.google.api.services.gmail.Gmail.Builder(
                    AndroidHttp.newCompatibleTransport(), JacksonFactory.getDefaultInstance(), googleAccountCredential)
                    .setApplicationName("StaffConnect")
                    .build();
            ForwardingAddress address = new ForwardingAddress()
                    .setForwardingEmail(emailAddress);
            ForwardingAddress createAddressResult = null;
            try {
                createAddressResult = mService.users().settings().forwardingAddresses()
                        .create("me", address).execute();
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (createAddressResult.getVerificationStatus().equals("accepted")) {
                    AutoForwarding autoForwarding = new AutoForwarding()
                            .setEnabled(true)
                            .setEmailAddress(address.getForwardingEmail())
                            .setDisposition("trash");
                    try {
                        autoForwarding = mService.users().settings().updateAutoForwarding("me", autoForwarding).execute();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
}

错误：

    com.google.api.client.googleapis.json.GoogleJsonResponseException: 403 Forbidden
{
  "code" : 403,
  "errors" : [ {
    "domain" : "global",
    "message" : "Insufficient Permission",
    "reason" : "insufficientPermissions"
  } ],
  "message" : "Insufficient Permission"
}

Answer 1

“权限不足”

表示当前经过身份验证的用户无权执行您请求通过您的应用程序使用的操作。权限是在身份验证时授予的，称为范围。

Users.settings.forwardingAddresses: create 请求需要以下范围的授权

范围

https://www.googleapis.com/auth/gmail.settings.sharing

您需要重新验证您的用户并请求额外的范围。