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159 lines
5.3 KiB
159 lines
5.3 KiB
6 years ago
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#!/usr/bin/python
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"""A session demonstration app."""
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import calendar
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from datetime import datetime
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import sys
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import cherrypy
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from cherrypy.lib import sessions
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from cherrypy._cpcompat import copyitems
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page = """
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<html>
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<head>
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<style type='text/css'>
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table { border-collapse: collapse; border: 1px solid #663333; }
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th { text-align: right; background-color: #663333; color: white; padding: 0.5em; }
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td { white-space: pre-wrap; font-family: monospace; padding: 0.5em;
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border: 1px solid #663333; }
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.warn { font-family: serif; color: #990000; }
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</style>
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<script type="text/javascript">
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<!--
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function twodigit(d) { return d < 10 ? "0" + d : d; }
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function formattime(t) {
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var month = t.getUTCMonth() + 1;
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var day = t.getUTCDate();
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var year = t.getUTCFullYear();
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var hours = t.getUTCHours();
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var minutes = t.getUTCMinutes();
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return (year + "/" + twodigit(month) + "/" + twodigit(day) + " " +
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hours + ":" + twodigit(minutes) + " UTC");
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}
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function interval(s) {
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// Return the given interval (in seconds) as an English phrase
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var seconds = s %% 60;
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s = Math.floor(s / 60);
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var minutes = s %% 60;
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s = Math.floor(s / 60);
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var hours = s %% 24;
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var v = twodigit(hours) + ":" + twodigit(minutes) + ":" + twodigit(seconds);
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var days = Math.floor(s / 24);
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if (days != 0) v = days + ' days, ' + v;
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return v;
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}
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var fudge_seconds = 5;
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function init() {
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// Set the content of the 'btime' cell.
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var currentTime = new Date();
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var bunixtime = Math.floor(currentTime.getTime() / 1000);
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var v = formattime(currentTime);
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v += " (Unix time: " + bunixtime + ")";
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var diff = Math.abs(%(serverunixtime)s - bunixtime);
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if (diff > fudge_seconds) v += "<p class='warn'>Browser and Server times disagree.</p>";
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document.getElementById('btime').innerHTML = v;
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// Warn if response cookie expires is not close to one hour in the future.
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// Yes, we want this to happen when wit hit the 'Expire' link, too.
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var expires = Date.parse("%(expires)s") / 1000;
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var onehour = (60 * 60);
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if (Math.abs(expires - (bunixtime + onehour)) > fudge_seconds) {
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diff = Math.floor(expires - bunixtime);
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if (expires > (bunixtime + onehour)) {
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var msg = "Response cookie 'expires' date is " + interval(diff) + " in the future.";
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} else {
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var msg = "Response cookie 'expires' date is " + interval(0 - diff) + " in the past.";
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}
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document.getElementById('respcookiewarn').innerHTML = msg;
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}
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}
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//-->
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</script>
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</head>
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<body onload='init()'>
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<h2>Session Demo</h2>
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<p>Reload this page. The session ID should not change from one reload to the next</p>
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<p><a href='../'>Index</a> | <a href='expire'>Expire</a> | <a href='regen'>Regenerate</a></p>
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<table>
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<tr><th>Session ID:</th><td>%(sessionid)s<p class='warn'>%(changemsg)s</p></td></tr>
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<tr><th>Request Cookie</th><td>%(reqcookie)s</td></tr>
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<tr><th>Response Cookie</th><td>%(respcookie)s<p id='respcookiewarn' class='warn'></p></td></tr>
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<tr><th>Session Data</th><td>%(sessiondata)s</td></tr>
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<tr><th>Server Time</th><td id='stime'>%(servertime)s (Unix time: %(serverunixtime)s)</td></tr>
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<tr><th>Browser Time</th><td id='btime'> </td></tr>
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<tr><th>Cherrypy Version:</th><td>%(cpversion)s</td></tr>
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<tr><th>Python Version:</th><td>%(pyversion)s</td></tr>
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</table>
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</body></html>
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"""
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class Root(object):
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def page(self):
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changemsg = []
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if cherrypy.session.id != cherrypy.session.originalid:
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if cherrypy.session.originalid is None:
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changemsg.append(
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'Created new session because no session id was given.')
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if cherrypy.session.missing:
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changemsg.append(
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'Created new session due to missing '
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'(expired or malicious) session.')
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if cherrypy.session.regenerated:
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changemsg.append('Application generated a new session.')
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try:
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expires = cherrypy.response.cookie['session_id']['expires']
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except KeyError:
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expires = ''
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return page % {
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'sessionid': cherrypy.session.id,
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'changemsg': '<br>'.join(changemsg),
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'respcookie': cherrypy.response.cookie.output(),
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'reqcookie': cherrypy.request.cookie.output(),
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'sessiondata': copyitems(cherrypy.session),
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'servertime': (
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datetime.utcnow().strftime('%Y/%m/%d %H:%M') + ' UTC'
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),
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'serverunixtime': calendar.timegm(datetime.utcnow().timetuple()),
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'cpversion': cherrypy.__version__,
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'pyversion': sys.version,
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'expires': expires,
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}
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@cherrypy.expose
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def index(self):
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# Must modify data or the session will not be saved.
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cherrypy.session['color'] = 'green'
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return self.page()
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@cherrypy.expose
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def expire(self):
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sessions.expire()
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return self.page()
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@cherrypy.expose
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def regen(self):
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cherrypy.session.regenerate()
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# Must modify data or the session will not be saved.
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cherrypy.session['color'] = 'yellow'
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return self.page()
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if __name__ == '__main__':
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cherrypy.config.update({
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# 'environment': 'production',
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'log.screen': True,
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'tools.sessions.on': True,
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})
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cherrypy.quickstart(Root())
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