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From "Thomas Timbul (JIRA)" <...@myfaces.apache.org>
Subject [jira] [Created] (MYFACES-4002) Regression? - References to external entities not working with WebXmlParser
Date Wed, 17 Jun 2015 14:51:01 GMT
Thomas Timbul created MYFACES-4002:
--------------------------------------

             Summary: Regression? - References to external entities not working with WebXmlParser
                 Key: MYFACES-4002
                 URL: https://issues.apache.org/jira/browse/MYFACES-4002
             Project: MyFaces Core
          Issue Type: Bug
    Affects Versions: 2.2.4
         Environment: Tomcat 8.0.23, JDK 1.8_20, Windows 7 64bit
            Reporter: Thomas Timbul


I've searched JIRA and there are a few issues related to WebXmlParser, but this seems almost
like a recurrence of MYFACES-1754.

My web.xml is split into multiple files, each declared as an XML entity relative to the web.xml
file itself:
{code:xml}
<!ENTITY contextparams	SYSTEM	"webxml/context-params.xml">
{code}
(As a side note I used to use {{jndi:/localhost/WEB-INF/webxml/context-params.xml}}, but for
some reason Tomcat 8 claims that jndi is an invalid protocol).

Using resource relative system identifiers Tomcat is now happy and the context starts correctly.
However, during its initialization MyFaces re-parses the web.xml descriptor and resolves the
entities incorrectly, leading to failure with the message:
{code}
2015-06-17 15:48:13.853 [localhost-startStop-1] ERROR o.a.m.s.w.webxml.WebXmlParser - Unable
to parse web.xml
java.lang.IllegalArgumentException: The resource path [file:///WEB-INF/webxml/context-params.xml]
is not valid
{code}

The solution is to remove the file:// prefix before passing to the external context to resolve,
as in this patch:

{code}
Index: org/apache/myfaces/shared_impl/webapp/webxml/WebXmlParser.java
===================================================================
--- WebXmlParser.java	(revision ???)
+++ WebXmlParser.java	(working copy)
@@ -138,6 +138,9 @@
 
     private InputSource createContextInputSource(String publicId, String systemId)
     {
+        if(systemId.startsWith("file:")) {
+            systemId = systemId.substring(7); // remove file://
+        }
         InputStream inStream = _context.getResourceAsStream(systemId);
         if (inStream == null)
         {

{code}




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