com.zextras.zimbradrive.BackendUtils.java Source code

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Here is the source code for com.zextras.zimbradrive.BackendUtils.java

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/*
 * Copyright (C) 2017 ZeXtras SRL
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation, version 2 of
 * the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License.
 * If not, see <http://www.gnu.org/licenses/>.
 */

package com.zextras.zimbradrive;

import java.nio.charset.StandardCharsets;
import org.apache.commons.io.IOUtils;
import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.utils.URLEncodedUtils;
import org.openzal.zal.Account;
import org.openzal.zal.AuthToken;
import org.openzal.zal.Provisioning;
import org.openzal.zal.exceptions.NoSuchAccountException;
import org.openzal.zal.log.ZimbraLog;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class BackendUtils {

    private static final String AUTH_TOKEN = "ZM_AUTH_TOKEN";

    private final Provisioning mProvisioning;
    private final TokenManager mTokenManager;

    public BackendUtils(Provisioning provisioning, TokenManager tokenManager) {
        mProvisioning = provisioning;
        mTokenManager = tokenManager;
    }

    public Account assertAccountFromAuthToken(HttpServletRequest httpServletRequest) {
        String accountId = "null";
        try {
            AuthToken authToken = assertAuthToken(httpServletRequest);
            accountId = authToken.getAccountId();
            return mProvisioning.assertAccountById(accountId);
        } catch (NoSuchAccountException ignore) {
            ZimbraLog.extensions.debug("Unable to find account with id:", accountId);
            throw new NotValidAuthTokenException();
        } catch (Exception ex) {
            ZimbraLog.extensions.error("Error on authentication", ex);
            throw new RuntimeException(ex);
        }
    }

    private AuthToken assertAuthToken(HttpServletRequest httpServletRequest) {
        String zmAuthToken = assertZmAuthTokenFromCookies(httpServletRequest);
        try {
            return AuthToken.getAuthToken(zmAuthToken);
        } catch (Exception ex) {
            ZimbraLog.extensions.debug("Unable to create authToken", ex);
            throw new NotValidAuthTokenException();
        }
    }

    private class NotValidAuthTokenException extends RuntimeException {
    }

    private String assertZmAuthTokenFromCookies(HttpServletRequest httpServletRequest) {
        Cookie[] cookies = httpServletRequest.getCookies();
        for (Cookie cookie : cookies) {
            if (cookie.getName().equals(AUTH_TOKEN)) {
                return cookie.getValue();
            }
        }
        throw new NoZmAuthTokenCookieFoundException();
    }

    private class NoZmAuthTokenCookieFoundException extends RuntimeException {
    }

    public String getServerServiceUrl(String path) {
        return mProvisioning.getLocalServer().getServiceURL(path);
    }

    public AccountToken getAccountToken(Account account) {
        return mTokenManager.getAccountToken(account);
    }

    public AccountToken getAccountToken(String accountId, String tokenStr) {
        return mTokenManager.getAccountToken(accountId, tokenStr);
    }

    public static Map<String, String> getJsonRequestParams(HttpServletRequest httpServletRequest)
            throws IOException {
        String body = IOUtils.toString(httpServletRequest.getReader());
        List<NameValuePair> requestParameters = URLEncodedUtils.parse(body, StandardCharsets.UTF_8);

        Map<String, String> paramsMap = new HashMap<String, String>();
        for (NameValuePair item : requestParameters) {
            paramsMap.put(item.getName(), item.getValue());
        }
        return paramsMap;
    }

    public static HttpEntity getEncodedForm(List<NameValuePair> driveOnCloudParameters) {
        return new UrlEncodedFormEntity(driveOnCloudParameters, StandardCharsets.UTF_8);
    }
}