Revision 30acb146
ref #8706 DateHeaderFilter to add Date headers to all servelet responses
cdmlib-remote-webapp/src/main/java/eu/etaxonomy/cdm/remote/DateHeaderFilter.java | ||
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/** |
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* Copyright (C) 2020 EDIT |
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* European Distributed Institute of Taxonomy |
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* http://www.e-taxonomy.eu |
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* |
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* The contents of this file are subject to the Mozilla Public License Version 1.1 |
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* See LICENSE.TXT at the top of this package for the full license terms. |
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*/ |
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package eu.etaxonomy.cdm.remote; |
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import java.io.IOException; |
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import java.time.OffsetDateTime; |
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import java.time.format.DateTimeFormatter; |
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import javax.servlet.Filter; |
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import javax.servlet.FilterChain; |
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import javax.servlet.FilterConfig; |
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import javax.servlet.ServletException; |
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import javax.servlet.ServletRequest; |
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import javax.servlet.ServletResponse; |
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import javax.servlet.http.HttpServletResponse; |
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/** |
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* Adds a "Date" Header to the http response formatted as RFC_1123_DATE_TIME. |
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* |
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* https://tools.ietf.org/html/rfc2616#section-14.18 |
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* |
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* @author a.kohlbecker |
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* @since Jan 17, 2020 |
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* |
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*/ |
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public class DateHeaderFilter implements Filter { |
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/** |
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* {@inheritDoc} |
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*/ |
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@Override |
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public void init(FilterConfig filterConfig) throws ServletException { |
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// Nothing to do |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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@Override |
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public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) |
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throws IOException, ServletException { |
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OffsetDateTime dateTime = OffsetDateTime.now(); |
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HttpServletResponse httpServletResponse = (HttpServletResponse) response; |
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httpServletResponse.setHeader("Date", dateTime.format(DateTimeFormatter.RFC_1123_DATE_TIME)); |
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chain.doFilter(request, response); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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@Override |
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public void destroy() { |
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// Nothing to do |
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} |
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} |
cdmlib-remote-webapp/src/main/webapp/WEB-INF/web.xml | ||
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<url-pattern>/*</url-pattern> |
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</filter-mapping> |
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<filter> |
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<filter-name>dateHeaderFilter</filter-name> |
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<filter-class>eu.etaxonomy.cdm.remote.DateHeaderFilter</filter-class> |
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</filter> |
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<filter-mapping> |
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<filter-name>dateHeaderFilter</filter-name> |
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<url-pattern>/*</url-pattern> |
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</filter-mapping> |
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<!-- Remoting Security --> |
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<filter> |
... | ... | |
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<filter-name>springSecurityFilterChain</filter-name> |
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<url-pattern>/*</url-pattern> |
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</filter-mapping> |
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</web-app> |
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