1
2 """A session demonstration app."""
3
4 import calendar
5 from datetime import datetime
6 import sys
7 import cherrypy
8 from cherrypy.lib import sessions
9 from cherrypy._cpcompat import copyitems
10
11
12 page = """
13 <html>
14 <head>
15 <style type='text/css'>
16 table { border-collapse: collapse; border: 1px solid #663333; }
17 th { text-align: right; background-color: #663333; color: white; padding: 0.5em; }
18 td { white-space: pre-wrap; font-family: monospace; padding: 0.5em;
19 border: 1px solid #663333; }
20 .warn { font-family: serif; color: #990000; }
21 </style>
22 <script type="text/javascript">
23 <!--
24 function twodigit(d) { return d < 10 ? "0" + d : d; }
25 function formattime(t) {
26 var month = t.getUTCMonth() + 1;
27 var day = t.getUTCDate();
28 var year = t.getUTCFullYear();
29 var hours = t.getUTCHours();
30 var minutes = t.getUTCMinutes();
31 return (year + "/" + twodigit(month) + "/" + twodigit(day) + " " +
32 hours + ":" + twodigit(minutes) + " UTC");
33 }
34
35 function interval(s) {
36 // Return the given interval (in seconds) as an English phrase
37 var seconds = s %% 60;
38 s = Math.floor(s / 60);
39 var minutes = s %% 60;
40 s = Math.floor(s / 60);
41 var hours = s %% 24;
42 var v = twodigit(hours) + ":" + twodigit(minutes) + ":" + twodigit(seconds);
43 var days = Math.floor(s / 24);
44 if (days != 0) v = days + ' days, ' + v;
45 return v;
46 }
47
48 var fudge_seconds = 5;
49
50 function init() {
51 // Set the content of the 'btime' cell.
52 var currentTime = new Date();
53 var bunixtime = Math.floor(currentTime.getTime() / 1000);
54
55 var v = formattime(currentTime);
56 v += " (Unix time: " + bunixtime + ")";
57
58 var diff = Math.abs(%(serverunixtime)s - bunixtime);
59 if (diff > fudge_seconds) v += "<p class='warn'>Browser and Server times disagree.</p>";
60
61 document.getElementById('btime').innerHTML = v;
62
63 // Warn if response cookie expires is not close to one hour in the future.
64 // Yes, we want this to happen when wit hit the 'Expire' link, too.
65 var expires = Date.parse("%(expires)s") / 1000;
66 var onehour = (60 * 60);
67 if (Math.abs(expires - (bunixtime + onehour)) > fudge_seconds) {
68 diff = Math.floor(expires - bunixtime);
69 if (expires > (bunixtime + onehour)) {
70 var msg = "Response cookie 'expires' date is " + interval(diff) + " in the future.";
71 } else {
72 var msg = "Response cookie 'expires' date is " + interval(0 - diff) + " in the past.";
73 }
74 document.getElementById('respcookiewarn').innerHTML = msg;
75 }
76 }
77 //-->
78 </script>
79 </head>
80
81 <body onload='init()'>
82 <h2>Session Demo</h2>
83 <p>Reload this page. The session ID should not change from one reload to the next</p>
84 <p><a href='../'>Index</a> | <a href='expire'>Expire</a> | <a href='regen'>Regenerate</a></p>
85 <table>
86 <tr><th>Session ID:</th><td>%(sessionid)s<p class='warn'>%(changemsg)s</p></td></tr>
87 <tr><th>Request Cookie</th><td>%(reqcookie)s</td></tr>
88 <tr><th>Response Cookie</th><td>%(respcookie)s<p id='respcookiewarn' class='warn'></p></td></tr>
89 <tr><th>Session Data</th><td>%(sessiondata)s</td></tr>
90 <tr><th>Server Time</th><td id='stime'>%(servertime)s (Unix time: %(serverunixtime)s)</td></tr>
91 <tr><th>Browser Time</th><td id='btime'> </td></tr>
92 <tr><th>Cherrypy Version:</th><td>%(cpversion)s</td></tr>
93 <tr><th>Python Version:</th><td>%(pyversion)s</td></tr>
94 </table>
95 </body></html>
96 """
97
98
100
102 changemsg = []
103 if cherrypy.session.id != cherrypy.session.originalid:
104 if cherrypy.session.originalid is None:
105 changemsg.append(
106 'Created new session because no session id was given.')
107 if cherrypy.session.missing:
108 changemsg.append(
109 'Created new session due to missing '
110 '(expired or malicious) session.')
111 if cherrypy.session.regenerated:
112 changemsg.append('Application generated a new session.')
113
114 try:
115 expires = cherrypy.response.cookie['session_id']['expires']
116 except KeyError:
117 expires = ''
118
119 return page % {
120 'sessionid': cherrypy.session.id,
121 'changemsg': '<br>'.join(changemsg),
122 'respcookie': cherrypy.response.cookie.output(),
123 'reqcookie': cherrypy.request.cookie.output(),
124 'sessiondata': copyitems(cherrypy.session),
125 'servertime': (
126 datetime.utcnow().strftime("%Y/%m/%d %H:%M") + " UTC"
127 ),
128 'serverunixtime': calendar.timegm(datetime.utcnow().timetuple()),
129 'cpversion': cherrypy.__version__,
130 'pyversion': sys.version,
131 'expires': expires,
132 }
133
135
136 cherrypy.session['color'] = 'green'
137 return self.page()
138 index.exposed = True
139
143 expire.exposed = True
144
150 regen.exposed = True
151
152 if __name__ == '__main__':
153 cherrypy.config.update({
154
155 'log.screen': True,
156 'tools.sessions.on': True,
157 })
158 cherrypy.quickstart(Root())
159