loncom/auth/lonlogin.pm - view

File: [LON-CAPA] / loncom / auth / lonlogin.pm
Revision 1.23: download - view: text, annotated - select for diffs
Tue Sep 17 19:48:40 2002 UTC (21 years, 7 months ago) by matthew
Branches: MAIN
CVS tags: HEAD

Guy is so picky.....

# The LearningOnline Network # Login Screen # # $Id: lonlogin.pm,v 1.23 2002/09/17 19:48:40 matthew Exp $ # # Copyright Michigan State University Board of Trustees # # This file is part of the LearningOnline Network with CAPA (LON-CAPA). # # LON-CAPA is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # LON-CAPA is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with LON-CAPA; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # # /home/httpd/html/adm/gpl.txt # # http://www.lon-capa.org/ # # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14, # 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9, # 1/17/01 Gerd Kortemeyer # # 2/7/02,2/8,2/12,2/14,2/15,2/19 Josh Brunskole # # 7/10/02 Jeremy Bowers package Apache::lonlogin; use strict; use Apache::Constants qw(:common); use Apache::File (); use Apache::lonnet(); use Apache::loncommon(); sub handler { my $r = shift; $r->content_type('text/html'); &Apache::loncommon::no_cache($r); $r->send_http_header; return OK if $r->header_only; &Apache::loncommon::get_unprocessed_cgi ($ENV{'QUERY_STRING'},['interface']); $ENV{'form.interface'}=~s/\W//g; my $fullgraph=($ENV{'form.interface'} ne 'textual'); my $iconpath= $r->dir_config('lonIconsURL'); my $domain = $r->dir_config('lonDefDomain'); my $role = $r->dir_config('lonRole'); my $loadlim = $r->dir_config('lonLoadLim'); my $servadm = $r->dir_config('lonAdmEMail'); my $sysadm = $r->dir_config('lonSysEMail'); my $lonhost = $r->dir_config('lonHostID'); my $tabdir = $r->dir_config('lonTabDir'); my $include = $r->dir_config('lonIncludes'); my $loadavg; { my $loadfile=Apache::File->new('/proc/loadavg'); $loadavg=<$loadfile>; } $loadavg =~ s/\s.*//g; my $loadpercent=100*$loadavg/$loadlim; my $otherserver='http://'.$ENV{'SERVER_NAME'}; my $firsturl=$ENV{'request.firsturl'}; # ---------------------------------------- Are we access server and overloaded? if (($role eq 'access') or ($loadpercent>100.0)) { $otherserver=Apache::lonnet::spareserver($loadpercent); } # -------------------------------------------------------- Set login parameters my @hexstr=('0','1','2','3','4','5','6','7', '8','9','a','b','c','d','e','f'); my $lkey=''; for (0..7) { $lkey.=$hexstr[rand(15)]; } my $ukey=''; for (0..7) { $ukey.=$hexstr[rand(15)]; } my $lextkey=hex($lkey); if ($lextkey>2147483647) { $lextkey-=4294967296; } my $uextkey=hex($ukey); if ($uextkey>2147483647) { $uextkey-=4294967296; } my $logtoken=Apache::lonnet::reply( 'tmpput:'.$ukey.$lkey.'&'.$firsturl, $lonhost); my $domainlogo=&Apache::loncommon::domainlogo(); # --------------------------------------------------- Print login screen header $r->print(<<ENDHEADER); <html> <head> <title>The LearningOnline Network with CAPA Login</title> </head> ENDHEADER # ---------------------------------------------------- Serve out DES JavaScript { my $jsh=Apache::File->new($include."/londes.js"); $r->print(<$jsh>); } # ----------------------------------------------------------- Front page design my $pgbg=&Apache::loncommon::designparm('login.pgbg'); my $font=&Apache::loncommon::designparm('login.font'); my $link=&Apache::loncommon::designparm('login.link'); my $vlink=&Apache::loncommon::designparm('login.vlink'); my $alink=&Apache::loncommon::designparm('login.alink'); my $mainbg=&Apache::loncommon::designparm('login.mainbg'); my $sidebg=&Apache::loncommon::designparm('login.sidebg'); my $logo=&Apache::loncommon::designparm('login.logo'); my $img=&Apache::loncommon::designparm('login.img'); # ---------------------------------------------------------- Serve rest of page $r->print(<<ENDSCRIPT); <body bgcolor="$pgbg" text="$font" link="$link" vlink="$vlink" alink="$alink" onLoad="init();" topmargin=0 leftmargin=0 marginwidth=0 marginheight=0> <script language="JavaScript"> function send() { this.document.server.elements.uname.value =this.document.client.elements.uname.value; this.document.server.elements.udom.value =this.document.client.elements.udom.value; uextkey=this.document.client.elements.uextkey.value; lextkey=this.document.client.elements.lextkey.value; initkeys(); this.document.server.elements.upass.value =crypted(this.document.client.elements.upass.value); this.document.server.submit(); return false; } </script> ENDSCRIPT if ($fullgraph) { $r->print( '<table width="100%" cellpadding=0 cellspacing=0 border=0>'); } $r->print(<<ENDSERVERFORM); <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top"> <input type=hidden name=logtoken value="$logtoken"> <input type=hidden name=serverid value="$lonhost"> <input type=hidden name=interface value="$ENV{'form.interface'}"> <input type=hidden name=uname value=""> <input type=hidden name=upass value=""> <input type=hidden name=udom value=""> </form> ENDSERVERFORM if ($fullgraph) { $r->print(<<ENDTOP);  <tr>  <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="#006600"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td> </tr>  <tr>  <td width=182 height=27 bgcolor="$sidebg"> </td>  <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>  <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>  <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td> </tr> <tr>   <td valign="top" height=60 align="center" bgcolor="$sidebg"> <a href="/adm/login?interface=textual"><img src="$iconpath/accessbutton.gif" border=0 alt="Accessibility Options" /></a> <br /> <a href="/adm/about.html"><img src="$iconpath/aboutlon.gif" border=0 alt="About LON-CAPA" /></a> </td>   <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>   <td align="center" valign="top" width="100%" height="100%" rowspan=2 bgcolor="$mainbg"> <center> <img src="$logo" alt="" /> </center> </td>  <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td> </tr> <tr>   <td align="center" valign="middle" bgcolor="$sidebg"> ENDTOP } $r->print(<<ENDLOGIN); <form name="client" onsubmit="return(send())"> <input type="hidden" name="lextkey" value="$lextkey"> <input type="hidden" name="uextkey" value="$uextkey">  <table border=0 cellspacing=0 cellpadding=0> <tr><td bgcolor="$sidebg" colspan=2><img src="$iconpath/userauthentication.gif" alt="User Authentication" /></td></tr> <tr> <td bgcolor="$mainbg"><br /><font size=-1><b>   User Name:</b></font></td> <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" /></td> </tr> <tr> <td bgcolor="$mainbg"><font size=-1><b>   Password:</b></font></td> <td bgcolor="$mainbg"><input type="password" name="upass" size="10" /></td> </tr> <tr> <td bgcolor="$mainbg"><font size=-1><b>   Domain:</b></font></td> <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value=$domain /></td> </tr> <tr> <td bgcolor="$mainbg" valign="bottom" align="center" colspan=2> <br /> <input type="submit" value="Log In" /> </td> </tr> </table>  </form> ENDLOGIN if ($fullgraph) { $r->print(<<ENDDOCUMENT); </td>  <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>  <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td> </tr> <tr>  <td bgcolor="$sidebg" valign="middle" align="left"> <br /> <table border=0 cellspacing=0 cellpadding=0> <tr> <td bgcolor="$sidebg" align="left" valign="top"> <small><b>   Domain: </b></small> </td> <td bgcolor="$sidebg" align="left" valign="top"> <small><tt> $domain</tt></small> </td> </tr> <tr> <td bgcolor="$sidebg" align="left" valign="top"> <small><b>   Server: </b></small> </td> <td bgcolor="$sidebg" align="left" valign="top"> <small><tt> $lonhost ($role)</tt></small> </td> </tr> <tr> <td bgcolor="$sidebg" align="left" valign="top"> <small><b>   Load: </b></small> </td> <td bgcolor="$sidebg" align="left" valign="top"> <small><tt> $loadpercent percent</tt></small> </td> </tr> </table> <br /> <small> <b>   System Administration:</b><br /> <tt>      $sysadm</tt><br /> <b>   Server Administration:</b><br /> <tt>      $servadm<br /> </tt> </small> </td>  <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>  <td width="100%" valign="bottom" bgcolor="$mainbg"> $domainlogo </td>  <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td> </tr> <tr>  <td bgcolor="$sidebg"> </td>  <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>  <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>  <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td> </tr> </table> ENDDOCUMENT } $r->print('</body></html>'); return OK; } 1; __END__