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https://issues.apache.org/jira/browse/KARAF-7674?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17695864#comment-17695864
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Aleksy Wróblewski commented on KARAF-7674:
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What also happens is sometimes ProxyServiceImpl receives an instance of
org.apache.felix.httplite.osgi.HttpServiceImpl and sometimes instance of
org.apache.felix.http.base.internal.service.PerBundleHttpServiceImpl. If the
httplite service is used then the proxy does not work at all and HTTP 404 is
returned. If PerBundleHttpServiceImpl is used, then the servlet name issue from
above occurs.
> HTTP ProxyServlet cookie name issue
> -----------------------------------
>
> Key: KARAF-7674
> URL: https://issues.apache.org/jira/browse/KARAF-7674
> Project: Karaf
> Issue Type: Bug
> Affects Versions: 4.4.3
> Reporter: Aleksy Wróblewski
> Priority: Major
>
> When using HTTP proxy (via http:proxy-add, or ProxyService, or by setting the
> proxies in org.apache.karaf.http.core.cfg), I get
> java.lang.IllegalArgumentException: Cookie name "!Proxy!class
> org.apache.karaf.http.core.internal.proxy.ProxyServlet_1927919381JSESSIONID"
> is a reserved token
> at javax.servlet.http.Cookie.<init>([Cookie.java:139|http://cookie.java:139/])
> at
> org.apache.karaf.http.core.internal.proxy.ProxyServlet.copyProxyCookie([ProxyServlet.java:328|http://proxyservlet.java:328/])
>
> This makes sense since cookies should not contain whitespace, but looking at
> the code, the servlet name is used for the cookie prefix:
> {code:java}
> /**
> * The string prefixing rewritten cookies.
> */
> protected String getCookieNamePrefix() {
> return "!Proxy!" + getServletConfig().getServletName();
> }
> {code}
> If I rebuild org.apache.karaf.http locally with the method just being
> {code:java}
> return "!Proxy!{code}
> then the http proxy works fine again.
> I think this assumes that the servlet has a meaningful name, but in my case
> it's the class name (class
> org.apache.karaf.http.core.internal.proxy.ProxyServlet). It is a Karaf
> instance built from karaf-maven-plugin assembly. Maybe it's a matter of
> jetty.xml or other configuration.
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