[% PROCESS header onload = ' onload="document.link.uri.focus()"' %]

[% IF error %]
    <div class="alert">[% error | html_entity %]</div>
[% ELSE %]

    [% SWITCH phase %]

    [% CASE 'Create' %]

        <p>This form will return a short link like "fq2.zwit.org" that will redirect to the page you provide.  So far,
        the database has [% link_count %] entries.</p>

        <form method="get" action="/link/" enctype="multipart/form-data" id="link">
        <p>Page: <input type="text" name="uri" value="http://" size="65" maxlength="2048" onfocus="empty(this)" /><br />
        Hash: <label><input type="radio" name="method" value="random" checked="checked" />random</label>
              <label><input type="radio" name="method" value="sha1" />sha1</label>
              <label><input type="radio" name="method" value="md5" />md5</label><br />
        <input type="submit" /></p>
        </form>

    [% CASE 'Added' %]

        <p>Your redirect to [% uri | html_entity %] was [% how %]:<p>

        <dl>

        <dt><a href="http://[% hash %].zwit.org/">[% hash %].zwit.org</a></dt><dd>Redirects immediately.</dd>

        <dt><a href="http://zwit.org/[% hash %]+">zwit.org/[% hash %]+</a></dt><dd>Preview on this site with the full link shown.</dd>

        </dl>

    [% CASE 'Preview' %]

        [% SWITCH safebrowsing %]

        [% CASE 'ok' %]

            <p>The shortcut "[% hash %].zwit.org" redirects to <strong><a href="[% uri %]">[% uri | html_entity %]</a></strong>.</p>

        [% CASE DEFAULT %]

            <p>The shortcut <a href="http://[% hash %].zwit.org">http://[% hash %].zwit.org</a>
            is a redirect to <strong>[% uri | html_entity %]</strong>, however, due to the
            warning below, it has been disabled.</p>

        [% END %]

    [% END %]

    <!-- On 2011-08-23, I started using the Google Safe Browsing Lookup API and copied a lot
    of text from http://code.google.com/apis/safebrowsing/lookup_guide.html, as per Google's
    explicit request contained on that same page. -->

    <p>Before doing any redirects, the target page is passed to Google to obtain an <a
    href="http://code.google.com/apis/safebrowsing/safebrowsing_faq.html#whyAdvisory">Advisory
    provided by Google</a>.  If the link may be unsafe, a preview is forced.</p>

    [% SWITCH safebrowsing %]

    [% CASE 'ok' %]

        <p>The target page does not appear to be phishing or malware.  You can find out more about
        phishing from <a href="http://www.antiphishing.org/">www.antiphishing.org</a>.  You can
        learn more about harmful web content including viruses and other malicious code and how
        to protect your computer at <a href="http://www.stopbadware.org/">StopBadware.org</a>.</p>

    [% CASE [ 'phishing', 'phishing,malware' ] %]

        <p class="alert"><strong>Warning: Suspected phishing page</strong>. The target page may
        be a forgery or imitation of another website, designed to trick users into sharing
        personal or financial information. Entering any personal information on the target page may
        result in identity theft or other abuse. You can find out more about phishing from <a
        href="http://www.antiphishing.org/">www.antiphishing.org</a>.</p>

    [% CASE [ 'malware', 'phishing,malware' ] %]

        <p class="alert"><strong>Warning: Visiting the target web site may harm your
        computer</strong>. The target page appears to contain malicious code that could be downloaded
        to your computer without your consent. You can learn more about harmful web content
        including viruses and other malicious code and how to protect your computer at <a
        href="http://www.stopbadware.org/">StopBadware.org</a>.</p>

    [% CASE 'local-internal-error' %]

        <p class="alert"><strong>Warning: Local Internal Error</strong>.  Something has gone wrong
        with the safe browsing check - it's almost certainly a local issue and nothing do to with
        Google.</p>

    [% END %]

    <p>Google works to provide the most accurate and up-to-date phishing and malware
    information. However, it cannot guarantee that its information is comprehensive and error-free:
    some risky sites may not be identified, and some safe sites may be identified in error.</p>

[% END %]

<p>The <a href="redirect.cgi">perl script</a> and <a href="index.tt">template</a> behind for this system are
available.  Please <a href="/contacts/">contact</a> me with any comments, improvements or patches.  I use the
<a href="javascript:void(location='http://zwitterion.org/link/?method=random;uri='+escape(location))">[link]</a>
JavaScript bookmark for quick shortcuts.</p>

[% PROCESS footer %]