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From "Parsons Technical Services" <parsonstechni...@earthlink.net>
Subject Re: web.xml servlet mappings, url pattern and CGI.PATH_INFO (tomcat 4.1.31)
Date Mon, 03 Jan 2005 21:33:44 GMT
I am sure there is a better option out there but if no one else weighs in, 
here are a couple of thoughts.

As for the wild card I know there are several threads addressing the do and 
don't of this. Although I think you have figured them out through trial and 
error.

As for one way to approach this would be to map the appropriate files (any 
with data) to a servlet that could parse the file name and pass the request 
on to the appropriate file. As I am not familiar with cgi stuff, I may be 
missing something.

Doug

----- Original Message ----- 
From: "Jack Eidsness" <jeidsness@above.net>
To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>
Sent: Monday, January 03, 2005 4:09 PM
Subject: web.xml servlet mappings, url pattern and CGI.PATH_INFO (tomcat 
4.1.31)


>I am new to the J2EE world, so hopefully I will not use terms incorrectly.
>
> Due to circumstances beyond my control, coldfusion has been retrofitted 
> into a J2EE web application and I have recently taken on the task of 
> trying to make previously existing cfm code work as part of a tomcat 
> installation.   I have found (so far) only one thing that doesn't work 
> like it used to, and its a significant problem for me.
>
> CGI apps can have a false path appended after the script name, which is 
> written into the CGI.PATH_INFO variable, so that it can be available to 
> scripts.  It would seem that tomcat is less flexible than apache httpd 
> about when this information will be supplied.  At least, jakarta-tomcat 
> 4.1.31 doesn't want to play ball.  I have not yet experimented with 
> version 5.x.
>
> I have found a lot of discussion of this matter, but no conclusive answer 
> as to what the workaround is, nor, as i fear, that there is no viable 
> workaround.
>
> By default, my coldfusion war file came with this in the web.xml:
>
>       <servlet-mapping id="macromedia_mapping_3">
>          <servlet-name>CfmServlet</servlet-name>
>          <url-pattern>*.cfm</url-pattern>
>       </servlet-mapping>
>
> attempting to browse (via the coyote thingie) to
> http://{server}/cfusion/htdocs/index.cfm
> will bring up the right page, but
> http://{server}/cfusion/htdocs/index.cfm/fake_path
> this gets me a 404.
>
> So far, I have only found one way to make tomcat give me the correct 
> PATH_INFO -
> If I do this:
> <url-pattern>/htdocs/index.cfm/*</url-pattern>
> then I will be able to run the right script and CGI.PATH_INFO is set to 
> "/fake_path".
>
> Naturally, if you have more than a couple situations where you use 
> PATH_INFO, this configuration becomes quickly unmanageable, and 
> unreasonable.  ("grep -iRl path_info ." will only get me so far)
>
> Is there a way to make this work without naming every cfm file that might 
> use PATH_INFO in the web.xml?
>
> For anyone interested in helping, here are some things that I have tried 
> that did not work (in each case, I have tried it as a replacement, 
> breaking the normal way it works for possible experimental value, or as an 
> additional servlet-mapping):
>
> If I do this:
>          <url-pattern>*.cfm/*</url-pattern>
> I get an error in the jakarta logs when the web.xml is read;
>
> java.lang.IllegalArgumentException: Invalid <url-pattern> *.cfm/* in 
> servlet mapping
>
> I looked up the source code and it says you can't start a servlet 
> mapping's url-pattern with "*." and have a "/" in the pattern at once. :/
>
> If I do this (nevermind that its not exactly what I want):
> <url-pattern>*.cfm*</url-pattern>
> Then the second * is not expanded as a wildcard. i.e. a file named 
> "index.cfm*" (literal '*' character) could be processed as a cfm file.
>
> If I do this
> <url-pattern>/*.cfm/*
> I get a 404.
>
> Thanks in advance for any time that any of you spend considering this 
> issue,
>
> Jack Eidsness
>
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>
>
> 



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