Package org.apache.catalina.filters
Class WebdavFixFilter
java.lang.Object
org.apache.catalina.filters.WebdavFixFilter
- All Implemented Interfaces:
Filter
Filter that attempts to force MS WebDAV clients connecting on port 80 to use a WebDAV client that actually works.
Other workarounds that might help include:
- Specifying the port, even if it is port 80, when trying to connect.
- Cancelling the first authentication dialog box and then trying to reconnect.
TODO: Update this filter to recognise specific MS clients and apply the appropriate workarounds for that particular client
As a filter, this is configured in web.xml like any other Filter. You usually want to map this filter to whatever your WebDAV servlet is mapped to.
In addition to the issues fixed by this Filter, the following issues have also been observed that cannot be fixed by this filter. Where possible the filter will add an message to the logs.
XP x64 SP2 (MiniRedir Version 3790)
- Only connects to port 80
- Unknown issue means it doesn't work
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Field Summary
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionvoid
destroy()
Called by the web container to indicate to a filter that it is being taken out of service.void
doFilter
(ServletRequest request, ServletResponse response, FilterChain chain) Check for the broken MS WebDAV client and if detected issue a re-direct that hopefully will cause the non-broken client to be used.void
init
(FilterConfig filterConfig) Called by the web container to indicate to a filter that it is being placed into service.
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Field Details
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sm
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Constructor Details
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WebdavFixFilter
public WebdavFixFilter()
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Method Details
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init
Description copied from interface:javax.servlet.Filter
Called by the web container to indicate to a filter that it is being placed into service. The servlet container calls the init method exactly once after instantiating the filter. The init method must complete successfully before the filter is asked to do any filtering work.The web container cannot place the filter into service if the init method either:
- Throws a ServletException
- Does not return within a time period defined by the web container
- Specified by:
init
in interfaceFilter
- Parameters:
filterConfig
- The configuration information associated with the filter instance being initialised- Throws:
ServletException
- if the initialisation fails
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destroy
public void destroy()Description copied from interface:javax.servlet.Filter
Called by the web container to indicate to a filter that it is being taken out of service. This method is only called once all threads within the filter's doFilter method have exited or after a timeout period has passed. After the web container calls this method, it will not call the doFilter method again on this instance of the filter.
This method gives the filter an opportunity to clean up any resources that are being held (for example, memory, file handles, threads) and make sure that any persistent state is synchronized with the filter's current state in memory. -
doFilter
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException Check for the broken MS WebDAV client and if detected issue a re-direct that hopefully will cause the non-broken client to be used.- Specified by:
doFilter
in interfaceFilter
- Parameters:
request
- The request to processresponse
- The response associated with the requestchain
- Provides access to the next filter in the chain for this filter to pass the request and response to for further processing- Throws:
IOException
- if an I/O error occurs during this filter's processing of the requestServletException
- if the processing fails for any other reason
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