Annotation of loncom/auth/lonlogin.pm, revision 1.30
1.1 albertel 1: # The LearningOnline Network
2: # Login Screen
1.11 www 3: #
1.30 ! www 4: # $Id: lonlogin.pm,v 1.29 2003/01/31 21:51:36 www Exp $
1.11 www 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.2 www 28: # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14,
1.10 www 29: # 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9,
30: # 1/17/01 Gerd Kortemeyer
1.1 albertel 31: #
1.14 albertel 32: # 2/7/02,2/8,2/12,2/14,2/15,2/19 Josh Brunskole
1.19 bowersj2 33: #
34: # 7/10/02 Jeremy Bowers
1.14 albertel 35:
1.1 albertel 36: package Apache::lonlogin;
37:
38: use strict;
39: use Apache::Constants qw(:common);
40: use Apache::File ();
41: use Apache::lonnet();
1.12 albertel 42: use Apache::loncommon();
1.1 albertel 43:
44: sub handler {
45: my $r = shift;
46: $r->content_type('text/html');
1.12 albertel 47: &Apache::loncommon::no_cache($r);
1.1 albertel 48: $r->send_http_header;
49: return OK if $r->header_only;
50:
1.16 www 51:
52: &Apache::loncommon::get_unprocessed_cgi
1.30 ! www 53: ($ENV{'QUERY_STRING'},['interface','username','domain']);
1.18 www 54:
55: $ENV{'form.interface'}=~s/\W//g;
1.16 www 56:
57: my $fullgraph=($ENV{'form.interface'} ne 'textual');
58:
1.26 www 59: my $iconpath= 'http://'.$ENV{'HTTP_HOST'}.':8080'.
60: $r->dir_config('lonIconsURL');
1.1 albertel 61: my $domain = $r->dir_config('lonDefDomain');
62: my $role = $r->dir_config('lonRole');
63: my $loadlim = $r->dir_config('lonLoadLim');
64: my $servadm = $r->dir_config('lonAdmEMail');
65: my $sysadm = $r->dir_config('lonSysEMail');
66: my $lonhost = $r->dir_config('lonHostID');
67: my $tabdir = $r->dir_config('lonTabDir');
1.6 www 68: my $include = $r->dir_config('lonIncludes');
1.1 albertel 69:
1.30 ! www 70: # --------------------------------------------- Default values for login fields
! 71:
! 72: my $authusername=($ENV{'form.username'}?$ENV{'form.username'}:'');
! 73: my $authdomain=($ENV{'form.domain'}?$ENV{'form.domain'}:$domain);
! 74:
! 75: # ---------------------------------------------------------- Determine own load
1.1 albertel 76: my $loadavg;
77: {
78: my $loadfile=Apache::File->new('/proc/loadavg');
79: $loadavg=<$loadfile>;
80: }
81: $loadavg =~ s/\s.*//g;
82: my $loadpercent=100*$loadavg/$loadlim;
83:
1.30 ! www 84: # ------------------------------------------------------- Do the load balancing
1.10 www 85: my $otherserver='http://'.$ENV{'SERVER_NAME'};
1.5 www 86: my $firsturl=$ENV{'request.firsturl'};
1.1 albertel 87: # ---------------------------------------- Are we access server and overloaded?
1.24 matthew 88: if (($role eq 'access') && ($loadpercent>100.0)) {
1.22 matthew 89: $otherserver=Apache::lonnet::spareserver($loadpercent);
1.1 albertel 90: }
1.6 www 91:
92: # -------------------------------------------------------- Set login parameters
93:
94: my @hexstr=('0','1','2','3','4','5','6','7',
95: '8','9','a','b','c','d','e','f');
96: my $lkey='';
97: for (0..7) {
98: $lkey.=$hexstr[rand(15)];
99: }
100:
101: my $ukey='';
102: for (0..7) {
103: $ukey.=$hexstr[rand(15)];
104: }
105:
106: my $lextkey=hex($lkey);
1.15 www 107: if ($lextkey>2147483647) { $lextkey-=4294967296; }
108:
1.6 www 109: my $uextkey=hex($ukey);
1.15 www 110: if ($uextkey>2147483647) { $uextkey-=4294967296; }
111:
1.6 www 112: my $logtoken=Apache::lonnet::reply(
1.7 www 113: 'tmpput:'.$ukey.$lkey.'&'.$firsturl,
1.6 www 114: $lonhost);
1.20 www 115: my $domainlogo=&Apache::loncommon::domainlogo();
1.6 www 116: # --------------------------------------------------- Print login screen header
117: $r->print(<<ENDHEADER);
1.1 albertel 118: <html>
119: <head>
1.2 www 120: <title>The LearningOnline Network with CAPA Login</title>
1.1 albertel 121: </head>
1.6 www 122: ENDHEADER
123: # ---------------------------------------------------- Serve out DES JavaScript
124: {
125: my $jsh=Apache::File->new($include."/londes.js");
126: $r->print(<$jsh>);
127: }
1.21 www 128:
129: # ----------------------------------------------------------- Front page design
130: my $pgbg=&Apache::loncommon::designparm('login.pgbg');
131: my $font=&Apache::loncommon::designparm('login.font');
132: my $link=&Apache::loncommon::designparm('login.link');
133: my $vlink=&Apache::loncommon::designparm('login.vlink');
134: my $alink=&Apache::loncommon::designparm('login.alink');
135: my $mainbg=&Apache::loncommon::designparm('login.mainbg');
136: my $sidebg=&Apache::loncommon::designparm('login.sidebg');
137: my $logo=&Apache::loncommon::designparm('login.logo');
138: my $img=&Apache::loncommon::designparm('login.img');
139:
140:
1.6 www 141: # ---------------------------------------------------------- Serve rest of page
1.16 www 142: $r->print(<<ENDSCRIPT);
1.6 www 143:
1.21 www 144: <body bgcolor="$pgbg" text="$font" link="$link" vlink="$vlink" alink="$alink"
1.27 albertel 145: topmargin=0 leftmargin=0 marginwidth=0 marginheight=0>
1.6 www 146:
1.14 albertel 147: <script language="JavaScript">
148: function send()
149: {
1.6 www 150: this.document.server.elements.uname.value
151: =this.document.client.elements.uname.value;
152:
153: this.document.server.elements.udom.value
154: =this.document.client.elements.udom.value;
155:
156: uextkey=this.document.client.elements.uextkey.value;
157: lextkey=this.document.client.elements.lextkey.value;
158: initkeys();
159:
160: this.document.server.elements.upass.value
161: =crypted(this.document.client.elements.upass.value);
162:
163: this.document.server.submit();
1.19 bowersj2 164: return false;
1.6 www 165: }
1.14 albertel 166: </script>
1.16 www 167: ENDSCRIPT
1.6 www 168:
1.16 www 169: if ($fullgraph) {
170: $r->print(
171: '<table width="100%" cellpadding=0 cellspacing=0 border=0>');
172: }
1.6 www 173:
1.16 www 174: $r->print(<<ENDSERVERFORM);
1.14 albertel 175: <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
176: <input type=hidden name=logtoken value="$logtoken">
177: <input type=hidden name=serverid value="$lonhost">
1.17 www 178: <input type=hidden name=interface value="$ENV{'form.interface'}">
1.14 albertel 179: <input type=hidden name=uname value="">
180: <input type=hidden name=upass value="">
181: <input type=hidden name=udom value="">
182: </form>
1.16 www 183: ENDSERVERFORM
184: if ($fullgraph) { $r->print(<<ENDTOP);
1.14 albertel 185: <!-- The LON-CAPA Header -->
186: <tr>
187:
188: <!-- Row 1 Columns 2-4 -->
1.29 www 189: <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td>
1.14 albertel 190: </tr>
191:
192: <!-- The gray bar that starts the two table frames -->
193: <tr>
194:
195: <!-- Row 2 Column 1 -->
1.21 www 196: <td width=182 height=27 bgcolor="$sidebg"> </td>
1.14 albertel 197:
198: <!-- Row 2 Column 2 -->
1.19 bowersj2 199: <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>
1.14 albertel 200:
201: <!-- Row 2 Column 3 -->
1.19 bowersj2 202: <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>
1.14 albertel 203:
204: <!-- Row 2 Column 4 -->
1.19 bowersj2 205: <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>
1.14 albertel 206: </tr>
207: <tr>
208:
209: <!-- A cell that will hold the 'access' and 'about' buttons -->
210: <!-- Row 3 Column 1 -->
1.21 www 211: <td valign="top" height=60 align="center" bgcolor="$sidebg">
1.19 bowersj2 212: <a href="/adm/login?interface=textual"><img src="$iconpath/accessbutton.gif" border=0 alt="Accessibility Options" /></a>
1.14 albertel 213: <br />
1.19 bowersj2 214: <a href="/adm/about.html"><img src="$iconpath/aboutlon.gif" border=0 alt="About LON-CAPA" /></a>
1.14 albertel 215: </td>
216:
217: <!-- The shaded space between the two main columns -->
218: <!-- Row 3 Column 2 -->
1.19 bowersj2 219: <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.14 albertel 220:
221: <!-- The right main column holding the large LON-CAPA logo-->
222: <!-- Rows 3-4 Column 3 -->
1.21 www 223: <td align="center" valign="top" width="100%" height="100%" rowspan=2 bgcolor="$mainbg">
1.14 albertel 224: <center>
1.21 www 225: <img src="$logo" alt="" />
1.14 albertel 226: </center>
227: </td>
228:
229: <!-- Row 3 Column 4 -->
1.19 bowersj2 230: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14 albertel 231: </tr>
232: <tr>
233:
234: <!-- The entry form -->
235: <!-- Row 4 Column 1 -->
1.21 www 236: <td align="center" valign="middle" bgcolor="$sidebg">
1.16 www 237: ENDTOP
238: }
239: $r->print(<<ENDLOGIN);
1.19 bowersj2 240: <form name="client" onsubmit="return(send())">
1.14 albertel 241: <input type="hidden" name="lextkey" value="$lextkey">
242: <input type="hidden" name="uextkey" value="$uextkey">
243:
244: <!-- Start the sub-table for text and input alignment -->
245: <table border=0 cellspacing=0 cellpadding=0>
1.21 www 246: <tr><td bgcolor="$sidebg" colspan=2><img src="$iconpath/userauthentication.gif" alt="User Authentication" /></td></tr>
1.14 albertel 247: <tr>
1.21 www 248: <td bgcolor="$mainbg"><br /><font size=-1><b> User Name:</b></font></td>
1.30 ! www 249: <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
1.14 albertel 250: </tr>
251: <tr>
1.21 www 252: <td bgcolor="$mainbg"><font size=-1><b> Password:</b></font></td>
253: <td bgcolor="$mainbg"><input type="password" name="upass" size="10" /></td>
1.14 albertel 254: </tr>
255: <tr>
1.21 www 256: <td bgcolor="$mainbg"><font size=-1><b> Domain:</b></font></td>
1.30 ! www 257: <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>
1.14 albertel 258: </tr>
259: <tr>
1.28 www 260: <td bgcolor="$mainbg"> <a href="/adm/loginproblems.html">Help</a></td>
261: <td bgcolor="$mainbg" valign="bottom" align="center">
1.14 albertel 262: <br />
1.19 bowersj2 263: <input type="submit" value="Log In" />
1.14 albertel 264: </td>
265: </tr>
266: </table>
267: <!-- End sub-table -->
268: </form>
1.16 www 269: ENDLOGIN
270: if ($fullgraph) {
271: $r->print(<<ENDDOCUMENT);
1.14 albertel 272: </td>
273:
274: <!-- Row 4 Column 2 -->
1.19 bowersj2 275: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.14 albertel 276:
277: <!-- Row 4 Column 4 -->
1.19 bowersj2 278: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14 albertel 279: </tr>
280: <tr>
281:
282: <!-- Row 5 Column 1 -->
1.21 www 283: <td bgcolor="$sidebg" valign="middle" align="left">
1.14 albertel 284: <br />
285: <table border=0 cellspacing=0 cellpadding=0>
286: <tr>
1.21 www 287: <td bgcolor="$sidebg" align="left" valign="top">
1.14 albertel 288: <small><b> Domain: </b></small>
289: </td>
1.21 www 290: <td bgcolor="$sidebg" align="left" valign="top">
1.14 albertel 291: <small><tt> $domain</tt></small>
292: </td>
293: </tr>
294: <tr>
1.21 www 295: <td bgcolor="$sidebg" align="left" valign="top">
1.14 albertel 296: <small><b> Server: </b></small>
297: </td>
1.21 www 298: <td bgcolor="$sidebg" align="left" valign="top">
1.14 albertel 299: <small><tt> $lonhost ($role)</tt></small>
300: </td>
301: </tr>
302: <tr>
1.21 www 303: <td bgcolor="$sidebg" align="left" valign="top">
1.14 albertel 304: <small><b> Load: </b></small>
305: </td>
1.21 www 306: <td bgcolor="$sidebg" align="left" valign="top">
1.14 albertel 307: <small><tt> $loadpercent percent</tt></small>
308: </td>
309: </tr>
310: </table>
311: <br />
312: <small>
313: <b> System Administration:</b><br />
314: <tt> $sysadm</tt><br />
315: <b> Server Administration:</b><br />
1.19 bowersj2 316: <tt> $servadm<br /> </tt>
1.14 albertel 317: </small>
318: </td>
319:
320: <!-- Row 5 Column 2 -->
1.19 bowersj2 321: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.14 albertel 322:
323: <!-- Row 5 Column 3 -->
1.21 www 324: <td width="100%" valign="bottom" bgcolor="$mainbg">
1.20 www 325: $domainlogo
326: </td>
1.14 albertel 327:
328: <!-- Row 5 Column 4 -->
1.19 bowersj2 329: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14 albertel 330: </tr>
331: <tr>
332:
333: <!-- Row 6 Column 1 -->
1.21 www 334: <td bgcolor="$sidebg"> </td>
1.14 albertel 335:
336: <!-- Row 6 Column 2 -->
1.19 bowersj2 337: <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>
1.14 albertel 338:
339: <!-- Row 6 Column 3 -->
1.19 bowersj2 340: <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>
1.14 albertel 341:
342: <!-- Row 6 Column 4 -->
1.19 bowersj2 343: <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>
1.14 albertel 344: </tr>
1.1 albertel 345: </table>
1.25 bowersj2 346:
347: <script>
348: // the if prevents the script error if the browser can't handle this
349: if ( document.client.uname ) { document.client.uname.focus(); }
350: </script>
1.14 albertel 351:
1.1 albertel 352: ENDDOCUMENT
1.16 www 353: }
354: $r->print('</body></html>');
1.1 albertel 355: return OK;
356: }
357:
358: 1;
359: __END__
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