/**
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/.
*/
package org.mifosplatform.infrastructure.security.filter;
import java.io.IOException;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.lang.time.StopWatch;
import org.mifosplatform.infrastructure.cache.domain.CacheType;
import org.mifosplatform.infrastructure.cache.service.CacheWritePlatformService;
import org.mifosplatform.infrastructure.configuration.domain.ConfigurationDomainService;
import org.mifosplatform.infrastructure.core.domain.MifosPlatformTenant;
import org.mifosplatform.infrastructure.core.serialization.ToApiJsonSerializer;
import org.mifosplatform.infrastructure.core.service.ThreadLocalContextUtil;
import org.mifosplatform.infrastructure.security.data.PlatformRequestLog;
import org.mifosplatform.infrastructure.security.exception.InvalidTenantIdentiferException;
import org.mifosplatform.infrastructure.security.service.BasicAuthTenantDetailsService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.security.web.authentication.www.BasicAuthenticationFilter;
import org.springframework.stereotype.Service;
/**
* A customised version of spring security's {@link BasicAuthenticationFilter}.
*
* This filter is responsible for extracting multi-tenant and basic auth
* credentials from the request and checking that the details provided are
* valid.
*
* If multi-tenant and basic auth credentials are valid, the details of the
* tenant are stored in {@link MifosPlatformTenant} and stored in a
* {@link ThreadLocal} variable for this request using
* {@link ThreadLocalContextUtil}.
*
* If multi-tenant and basic auth credentials are invalid, a http error response
* is returned.
*/
@Service(value = "basicAuthenticationProcessingFilter")
public class TenantAwareBasicAuthenticationFilter extends BasicAuthenticationFilter {
private static boolean firstRequestProcessed = false;
private final static Logger logger = LoggerFactory.getLogger(TenantAwareBasicAuthenticationFilter.class);
private final BasicAuthTenantDetailsService basicAuthTenantDetailsService;
private final ToApiJsonSerializer<PlatformRequestLog> toApiJsonSerializer;
private final ConfigurationDomainService configurationDomainService;
private final CacheWritePlatformService cacheWritePlatformService;
private final String tenantRequestHeader = "X-Mifos-Platform-TenantId";
private final boolean exceptionIfHeaderMissing = true;
@Autowired
public TenantAwareBasicAuthenticationFilter(final AuthenticationManager authenticationManager,
final AuthenticationEntryPoint authenticationEntryPoint, final BasicAuthTenantDetailsService basicAuthTenantDetailsService,
final ToApiJsonSerializer<PlatformRequestLog> toApiJsonSerializer, final ConfigurationDomainService configurationDomainService,
final CacheWritePlatformService cacheWritePlatformService) {
super(authenticationManager, authenticationEntryPoint);
this.basicAuthTenantDetailsService = basicAuthTenantDetailsService;
this.toApiJsonSerializer = toApiJsonSerializer;
this.configurationDomainService = configurationDomainService;
this.cacheWritePlatformService = cacheWritePlatformService;
}
@Override
public void doFilter(final ServletRequest req, final ServletResponse res, final FilterChain chain) throws IOException, ServletException {
final HttpServletRequest request = (HttpServletRequest) req;
final HttpServletResponse response = (HttpServletResponse) res;
final StopWatch task = new StopWatch();
task.start();
try {
if ("OPTIONS".equalsIgnoreCase(request.getMethod())) {
// ignore to allow 'preflight' requests from AJAX applications
// in different origin (domain name)
} else {
String tenantIdentifier = request.getHeader(this.tenantRequestHeader);
if (org.apache.commons.lang.StringUtils.isBlank(tenantIdentifier)) {
tenantIdentifier = request.getParameter("tenantIdentifier");
}
if (tenantIdentifier == null && this.exceptionIfHeaderMissing) { throw new InvalidTenantIdentiferException(
"No tenant identifier found: Add request header of '" + this.tenantRequestHeader
+ "' or add the parameter 'tenantIdentifier' to query string of request URL."); }
// check tenants database for tenantId
final MifosPlatformTenant tenant = this.basicAuthTenantDetailsService.loadTenantById(tenantIdentifier);
ThreadLocalContextUtil.setTenant(tenant);
String authToken = request.getHeader("Authorization");
if (authToken != null && authToken.startsWith("Basic ")) {
ThreadLocalContextUtil.setAuthToken(authToken.replaceFirst("Basic ", ""));
}
if (!firstRequestProcessed) {
final String baseUrl = request.getRequestURL().toString().replace(request.getPathInfo(), "/");
System.setProperty("baseUrl", baseUrl);
final boolean ehcacheEnabled = this.configurationDomainService.isEhcacheEnabled();
if (ehcacheEnabled) {
this.cacheWritePlatformService.switchToCache(CacheType.SINGLE_NODE);
} else {
this.cacheWritePlatformService.switchToCache(CacheType.NO_CACHE);
}
TenantAwareBasicAuthenticationFilter.firstRequestProcessed = true;
}
}
super.doFilter(req, res, chain);
} catch (final InvalidTenantIdentiferException e) {
// deal with exception at low level
SecurityContextHolder.getContext().setAuthentication(null);
response.addHeader("WWW-Authenticate", "Basic realm=\"" + "Mifos Platform API" + "\"");
response.sendError(HttpServletResponse.SC_BAD_REQUEST, e.getMessage());
} finally {
task.stop();
final PlatformRequestLog log = PlatformRequestLog.from(task, request);
logger.info(this.toApiJsonSerializer.serialize(log));
}
}
}