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From "Sebb (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (HTTPCLIENT-876) Calling httpClient.execute(post) on a shared server causes security error (WRITE not allowed to protected area on disk)
Date Mon, 14 Sep 2009 08:10:57 GMT

    [ https://issues.apache.org/jira/browse/HTTPCLIENT-876?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12754862#action_12754862
] 

Sebb edited comment on HTTPCLIENT-876 at 9/14/09 1:09 AM:
----------------------------------------------------------

One more suggestion - check that the application and supporting jars are correctly installed,
and check that the HC jars actually contain version.properties.

Guessing from the name of the Tomcat method, it should only be called if the resource cannot
be found in the normal locations (but I could be wrong).

I suggest you ask on the Tomcat user list.

      was (Author: sebb@apache.org):
    One more suggestion - check that the application and supporting jars are correctly installed,
and check that the HC jars actually contain version.properties.

Guessing from the name of the Tomcat method, it should only be called if the resource cannot
be found in the normal locations (but I could be wrong).

I suggest you ask on the Tomcat user list.
It should be easy to create a very simple JSP that calls VersionInfo directly if they ask
for a test case.
  
> Calling httpClient.execute(post) on a shared server causes security error (WRITE not
allowed to protected area on disk)
> -----------------------------------------------------------------------------------------------------------------------
>
>                 Key: HTTPCLIENT-876
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-876
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: HttpClient
>    Affects Versions: 4.0 Final
>         Environment: Java 5.0, Tomcat
>            Reporter: Clifford
>   Original Estimate: 4h
>  Remaining Estimate: 4h
>
> I run my JSP modules on a shared server at GoDaddy.com, one of the largest hosting companies
in the USA.  They have strict security on the servers which disallows writing to any disk
files unless they are in the /temp directory.
>  
> When I first tried to execute a module I wrote using HttpClient, I got a security write-not-allowed
error.  I looked at the stack trace and found out that org.apache.http.impl.client.DefaultHttpClient.java
(at source line 197) calls org.apache.http.util.VersionInfo method loadVersionInfo, and that
class (at source line 248) tries to do a FILE WRITE after not finding a property file containing
the version#.  That WRITE is disallowed by my hosting, thus causing my HttpClient call to
fail.  I can provide more details if you like.
>  
> I worked around the problem by commenting out the call to loadVersionInfo and recompiling
DefaultHttpClient, but MANY MANY programmers will run into this issue, so I would label it
an urgent bug that needs to be fixed.  Suggestions for the fix could be 1) hard-code the version
in a new final static variable of DefaultHttpClient, or 2) Write the Properties file containing
the HttpClient version# to a directory within /temp.
> The stack trace (transcribed from a printout) is:
> java.security.AccessControlException: access denied (java.io.FilePermission /web/tomcat/work/hosting/dir.dotgreen.org/.../loader/META-INF
write) at ... 5 levels of java.security.* then
> java.io.File.mkdir
> WebappClassLoader.findResourceInternal
> WebappClassLoader.findResource
> WebappClassLoader.getResourceAsStream
> VersionInfo.loadVersionInfo (line 244)
> DefaultHttpClient.createHttpParams (line 197)
> AbstractHttpClient.getParams (line 293)
> DefaultHttpClient.createClient (line 2)
> AbstractHttpClient.getConnectionManager (line 312)
> DefaultHttpClient.createHttpContext (line 254)
> AbstractHttpClient.execute (line 618)
> AbstractHttpClient.execute (line 576)
> AbstractHttpClient.execute (line 554)
> then a dozen JSP/catalina locations that are irrelevant

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