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<h2 class="wimscenter">Access restriction definition</h2>

<p>

This is multi-line data, executed line by line in their list orders. The

restrictions only affect resource modules, but not administration modules.

Lines starting with a `<span class="tt wims_code_words">#</span>' are comments.

</p><p>

Each line is of the format <span class="tt wims_code_words">access conditions:host/time conditions</span>.

</p><p>

The access conditions is a list of words, which will be ANDed. The available

words are listed in the following table. Each word can be prefixed with

<span class="tt wims_code_words">non</span> to reverse its logical meaning.

</p>

$table_header

$table_tr<th>word</th><th>meaning</th></tr>

$table_tr<td class="tt wims_code_words">class</td><td>The connection is within a virtual class.</td></tr>

$table_tr<td class="tt wims_code_words">com</td><td>The requested module is under the com/ subtree.</td></tr>

$table_tr<td class="tt wims_code_words">document</td><td>The requested module is a document.</td></tr>

$table_tr<td class="tt wims_code_words">exercise</td><td>The requested module is an exercise.</td></tr>

$table_tr<td class="tt wims_code_words">hint</td><td>The request is for hint.</td></tr>

$table_tr<td class="tt wims_code_words">local</td><td>The requested module is under the local/ subtree.</td></tr>

$table_tr<td class="tt wims_code_words">recreation</td><td>The requested module is a recreation.</td></tr>

$table_tr<td class="tt wims_code_words">tool</td><td>The requested module is a tool.</td></tr>

$table_end

!set date=!char 1 to 8 of $wims_now

!set year=!char 1 to 4 of $wims_now

<div>

The host/time conditions can be any host or time definition as for any worksheet.

According to the first line with host/time meeting the host/time conditions:

  <ul><li> If the first character of the host/time conditions is

    <span class="tt wims_code_words">!</span>, the resources meeting the access conditions

    will be refused access.

  </li><li>

    Otherwise they will be granted access.

  </li></ul>

  Subsequent lines in the restriction definition will be then ignored.

</div>

<hr>

!read help/hosts.phtml

<hr>

Some starting examples.

<div>

# Disallow the use of tools from 134.59.102.*

<pre>

<span class="tt wims_code_words">tool:! 134.59.102.</span>

</pre></div><div>

# Disallow calls for hint from localhost.

<pre>

<span class="tt wims_code_words">hint:! 127.0.0.1</span>

</pre></div><div>

# People from wanadoo.fr cannot have anonymous accesses for recreations.

<pre>

<span class="tt wims_code_words">nonclass recreation:! .wanadoo.fr</span>

</pre></div><div>

# Work in the virtual class prohibited from localhost on New Year's Day of 2004.

<pre>

<span class="tt wims_code_words">class:! 127.0.0.1 &gt;$(year)0101.00:00 &lt;$(year)0101.23:59</span>

</pre></div><div>

# Work in the virtual class prohibited from 10pm to 6am on the days of October.

<pre>

<span class="tt wims_code_words">class:! &gt;****10**.22:00 &lt;****10**.23:59</span>

<span class="tt wims_code_words">class:! &gt;****10**.00:00 &lt;****10**.06:00</span>

</pre>

</div>