Re: problem: security using IDE's appletviewer

From:
Mark Space <markspace@sbc.global.net>
Newsgroups:
comp.lang.java.help
Date:
Mon, 05 May 2008 09:26:16 -0700
Message-ID:
<_yGTj.2281$3O7.1560@newssvr19.news.prodigy.net>
bH wrote:

That said, I have looked at Canadian Mind Products
 > P words > policy

The instructions say to use:

grant {
permission java.security.AllPermission;
};

I have added these lines above but now there is an error at
 compile time for this applet:
 <identifier> expected (obviously after the word "grant")


Read the rest of Roedy's page. Especially the part where he tells you
that the policy file is outside of your program.

<quote>
Where are the policy files?
Exactly how many policy files you have and where they are is controlled
by settings in the C:\Program
Files\java\jre1.6.0_06\lib\security\java.security or C:\Program
Files\Java Web Start\java.security. The Opera browser has its own policy
file at C:\Program Files\Opera\classes\Opera.policy.

The default is to have:

    1. a single system-wide policy file J:\Program
Files\java\jdk1.6.0_06\jre\lib\security\java.policy in the
java.home\lib\security directory.
    2. a user-specific policy file user.home/.java.policy, e.g.
"C:\Documents and Settings\%username%\.java.policy". In Vista, look in
"C:\Users\%username%\.java.policy".
</quote>

      //ioStream = getImage(getCodeBase(),
      // "image/JBsm.JPG" );
      //above line works with both the IE browser page
      // and applet viewer
      ioStream = getImage(getCodeBase(),
"file:/C:/JBsm.JPG" );
      //above line works with the Browser page but fails
      //using the applet viewer


Realistically, this isn't going to work. No one but you is going to
edit their own policy files. Make this image into a resource, and use
getResourceAsStream(). That's the correct way to package extra files
with an applet.

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