loncom/auth/lonlogin.pm - view

File: [LON-CAPA] / loncom / auth / lonlogin.pm
Revision 1.81: download - view: text, annotated - select for diffs
Thu Sep 28 00:59:02 2006 UTC (17 years, 8 months ago) by albertel
Branches: MAIN
CVS tags: version_2_2_X, version_2_2_2, HEAD

- allow specifying addtional domains that can appear in the url for auto
  filling in the Domain filed with

1: # The LearningOnline Network 2: # Login Screen 3: # 4: # $Id: lonlogin.pm,v 1.81 2006/09/28 00:59:02 albertel Exp $ 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: # 28: 29: package Apache::lonlogin; 30: 31: use strict; 32: use Apache::Constants qw(:common); 33: use CGI::Cookie(); 34: use Apache::File (); 35: use Apache::lonnet; 36: use Apache::loncommon(); 37: use Apache::lonauth(); 38: use Apache::lonlocal; 39: use Apache::migrateuser(); 40: use lib '/home/httpd/lib/perl/'; 41: use LONCAPA; 42: 43: 44: sub additional_machine_domains { 45: my @domains; 46: open(my $fh,"<".$Apache::lonnet::perlvar{'lonTabDir'}.'/expected_domains.tab'); 47: while( my $line = <$fh>) { 48: $line =~ s/\s//g; 49: push(@domains,$line); 50: } 51: return @domains; 52: } 53: 54: sub handler { 55: my $r = shift; 56: 57: &Apache::loncommon::get_unprocessed_cgi 58: (join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'}, 59: $ENV{'REDIRECT_QUERY_STRING'}), 60: ['interface','username','domain','firsturl','localpath','localres', 61: 'token']); 62: 63: # -- check if they are a migrating user 64: if (defined($env{'form.token'})) { 65: return &Apache::migrateuser::handler($r); 66: } 67: 68: &Apache::loncommon::no_cache($r); 69: &Apache::lonlocal::get_language_handle($r); 70: &Apache::loncommon::content_type($r,'text/html'); 71: $r->send_http_header; 72: return OK if $r->header_only; 73: 74: 75: # Are we re-routing? 76: if (-e '/home/httpd/html/lon-status/reroute.txt') { 77: &Apache::lonauth::reroute($r); 78: return OK; 79: } 80: 81: 82: # -------------------------------- Prevent users from attempting to login twice 83: my %cookies=CGI::Cookie->parse($r->header_in('Cookie')); 84: my $lonid=$cookies{'lonID'}; 85: my $cookie; 86: if ($lonid) { 87: my $handle=$lonid->value; 88: $handle=~s/\W//g; 89: my $lonidsdir=$r->dir_config('lonIDsDir'); 90: if (-e "$lonidsdir/$handle.id") { 91: # Is there an existing token file? 92: if ($handle=~/^publicuser\_/) { 93: # For "public user" - remove it, we apparently really want to login 94: unlink("$lonidsdir/$handle.id"); 95: } elsif ($handle ne '') { 96: # Indeed, a valid token is found 97: my $start_page = 98: &Apache::loncommon::start_page('Already logged in'); 99: my $end_page = 100: &Apache::loncommon::end_page(); 101: $r->print(<<ENDFAILED); 102: $start_page 103: <h1>You are already logged in</h1> 104: <p>Please either <a href="/adm/roles">continue the current session</a> or 105: <a href="/adm/logout">logout</a>.</p> 106: <p> 107: <a href="/adm/loginproblems.html">Problems?</a></p> 108: $end_page 109: ENDFAILED 110: return OK; 111: } 112: } 113: } 114: 115: # ---------------------------------------------------- No valid token, continue 116: 117: # ---------------------------- Not possible to really login to domain "public" 118: if ($env{'form.domain'} eq 'public') { 119: $env{'form.domain'}=''; 120: $env{'form.username'}=''; 121: } 122: # ----------------------------------------------------------- Process Interface 123: $env{'form.interface'}=~s/\W//g; 124: 125: my $textbrowsers=$r->dir_config('lonTextBrowsers'); 126: my $httpbrowser=$ENV{"HTTP_USER_AGENT"}; 127: 128: foreach (split(/\:/,$textbrowsers)) { 129: if ($httpbrowser=~/$_/i) { 130: $env{'form.interface'}='textual'; 131: } 132: } 133: 134: my $fullgraph=($env{'form.interface'} ne 'textual'); 135: my $port_to_use=$r->dir_config('lonhttpdPort'); 136: if (!defined($port_to_use)) { 137: $port_to_use='8080'; 138: } 139: my $iconpath= 'http://'.$ENV{'HTTP_HOST'}.':'.$port_to_use. 140: $r->dir_config('lonIconsURL'); 141: my $domain = $r->dir_config('lonDefDomain'); 142: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0]; 143: foreach my $posdom (&Apache::lonnet::current_machine_domains(), 144: &additional_machine_domains()) { 145: if (lc($posdom) eq lc($testdomain)) { $domain=$posdom; } 146: } 147: if (($env{'form.domain'}) && 148: ($Apache::lonnet::domaindescription{$env{'form.domain'}})) { 149: $domain=$env{'form.domain'}; 150: } 151: my $role = $r->dir_config('lonRole'); 152: my $loadlim = $r->dir_config('lonLoadLim'); 153: my $servadm = $r->dir_config('lonAdmEMail'); 154: my $sysadm = $r->dir_config('lonSysEMail'); 155: my $lonhost = $r->dir_config('lonHostID'); 156: my $tabdir = $r->dir_config('lonTabDir'); 157: my $include = $r->dir_config('lonIncludes'); 158: my $expire = $r->dir_config('lonExpire'); 159: my $version = $r->dir_config('lonVersion'); 160: my $host_name = $Apache::lonnet::hostname{$lonhost}; 161: 162: # --------------------------------------------- Default values for login fields 163: 164: my $authusername=($env{'form.username'}?$env{'form.username'}:''); 165: my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain); 166: 167: # ---------------------------------------------------------- Determine own load 168: my $loadavg; 169: { 170: my $loadfile=Apache::File->new('/proc/loadavg'); 171: $loadavg=<$loadfile>; 172: } 173: $loadavg =~ s/\s.*//g; 174: my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim); 175: my $userloadpercent=&Apache::lonnet::userload(); 176: 177: # ------------------------------------------------------- Do the load balancing 178: my $otherserver= &Apache::lonnet::absolute_url($host_name); 179: my $firsturl= 180: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'}); 181: # ---------------------------------------- Are we access server and overloaded? 182: if (($role eq 'access') && 183: (($userloadpercent>100.0)||($loadpercent>100.0))) { 184: my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent); 185: if ($unloaded) { $otherserver=$unloaded; } 186: } 187: 188: # ----------------------------------------------------------- Get announcements 189: my $announcements=&Apache::lonnet::getannounce(); 190: # -------------------------------------------------------- Set login parameters 191: 192: my @hexstr=('0','1','2','3','4','5','6','7', 193: '8','9','a','b','c','d','e','f'); 194: my $lkey=''; 195: for (0..7) { 196: $lkey.=$hexstr[rand(15)]; 197: } 198: 199: my $ukey=''; 200: for (0..7) { 201: $ukey.=$hexstr[rand(15)]; 202: } 203: 204: my $lextkey=hex($lkey); 205: if ($lextkey>2147483647) { $lextkey-=4294967296; } 206: 207: my $uextkey=hex($ukey); 208: if ($uextkey>2147483647) { $uextkey-=4294967296; } 209: 210: # -------------------------------------------------------- Store away log token 211: my $logtoken=Apache::lonnet::reply( 212: 'tmpput:'.$ukey.$lkey.'&'.$firsturl, 213: $lonhost); 214: 215: # ------------------- If we cannot talk to ourselves, we are in serious trouble 216: 217: if ($logtoken eq 'con_lost') { 218: my $spares=''; 219: my $last; 220: foreach my $hostid (sort 221: { 222: $Apache::lonnet::hostname{$a} cmp 223: $Apache::lonnet::hostname{$b}; 224: } 225: keys(%Apache::lonnet::spareid)) { 226: next if ($hostid eq $lonhost); 227: next if ($last eq $Apache::lonnet::hostname{$hostid}); 228: $spares.='<br /><font size="+1"><a href="http://'. 229: $Apache::lonnet::hostname{$hostid}. 230: '/adm/login?domain='.$authdomain.'">'. 231: $Apache::lonnet::hostname{$hostid}.'</a>'. 232: ' (preferred)</font>'.$/; 233: $last=$Apache::lonnet::hostname{$hostid}; 234: } 235: $spares.= '<br />'; 236: foreach my $hostid (sort 237: { 238: $Apache::lonnet::hostname{$a} cmp 239: $Apache::lonnet::hostname{$b}; 240: } 241: keys(%Apache::lonnet::hostname)) { 242: next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid}); 243: next if ($last eq $Apache::lonnet::hostname{$hostid}); 244: $spares.='<br /><a href="http://'. 245: $Apache::lonnet::hostname{$hostid}. 246: '/adm/login?domain='.$authdomain.'">'. 247: $Apache::lonnet::hostname{$hostid}.'</a>'; 248: $last=$Apache::lonnet::hostname{$hostid}; 249: } 250: $r->print(<<ENDTROUBLE); 251: <html> 252: <head><title>The LearningOnline Network with CAPA</title></head> 253: <body bgcolor="#FFFFFF"> 254: <img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" /> 255: <h3>This LON-CAPA server is temporarily not available for login</h3> 256: <p>Please attempt to login to one of the following servers:</p>$spares 257: <p>If the problem persists, please contact <tt>$servadm</tt>.</p> 258: </body> 259: </html> 260: ENDTROUBLE 261: return OK; 262: } 263: 264: # ----------------------------------------------- Apparently we are in business 265: 266: my $domainlogo=&Apache::loncommon::domainlogo($domain); 267: $servadm=~s/\,/\<br \/\>/g; 268: $sysadm=~s/\,/\<br \/\>/g; 269: 270: # --------------------------------------------------- Print login screen header 271: $r->print(<<ENDHEADER); 272: <html> 273: <head> 274: <meta HTTP-EQUIV="Refresh" CONTENT="$expire; url=/adm/roles" /> 275: <title>The LearningOnline Network with CAPA Login</title> 276: </head> 277: ENDHEADER 278: # ---------------------------------------------------- Serve out DES JavaScript 279: { 280: my $jsh=Apache::File->new($include."/londes.js"); 281: $r->print(<$jsh>); 282: } 283: 284: # ----------------------------------------------------------- Front page design 285: my $pgbg= 286: ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF'); 287: my $font= 288: ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000'); 289: my $link= 290: ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF'); 291: my $vlink= 292: ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF'); 293: my $alink=&Apache::loncommon::designparm('login.alink',$domain); 294: my $mainbg= 295: ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF'); 296: my $sidebg= 297: ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF'); 298: my $logo=&Apache::loncommon::designparm('login.logo',$domain); 299: my $img=&Apache::loncommon::designparm('login.img',$domain); 300: 301: # ----------------------------------------------------------------------- Texts 302: 303: my %lt=&Apache::lonlocal::texthash( 304: 'un' => 'Username', 305: 'pw' => 'Password', 306: 'dom' => 'Domain', 307: 'perc' => 'percent', 308: 'load' => 'Load', 309: 'userload' => 'User Load', 310: 'about' => 'aboutlon.gif', 311: 'access' => 'accessbutton.gif', 312: 'auth' => 'userauthentication.gif', 313: 'log' => 'Log in', 314: 'help' => 'Help', 315: 'serv' => 'Server', 316: 'servadm' => 'Server Administration', 317: 'sysadm' => 'System Administration', 318: 'helpdesk' => 'Contact Helpdesk'); 319: # -------------------------------------------------- Change password field name 320: my $now=time; 321: # ---------------------------------------------------------- Serve rest of page 322: $r->print(<<ENDSCRIPT); 323: 324: <body bgcolor="$pgbg" text="$font" link="$link" vlink="$vlink" alink="$alink" 325: topmargin=0 leftmargin=0 marginwidth=0 marginheight=0> 326: 327: <script language="JavaScript"> 328: function send() 329: { 330: this.document.server.elements.uname.value 331: =this.document.client.elements.uname.value; 332: 333: this.document.server.elements.udom.value 334: =this.document.client.elements.udom.value; 335: 336: this.document.server.elements.imagesuppress.value 337: =this.document.client.elements.imagesuppress.checked; 338: 339: this.document.server.elements.embedsuppress.value 340: =this.document.client.elements.embedsuppress.checked; 341: 342: this.document.server.elements.appletsuppress.value 343: =this.document.client.elements.appletsuppress.checked; 344: 345: this.document.server.elements.fontenhance.value 346: =this.document.client.elements.fontenhance.checked; 347: 348: this.document.server.elements.blackwhite.value 349: =this.document.client.elements.blackwhite.checked; 350: 351: this.document.server.elements.remember.value 352: =this.document.client.elements.remember.checked; 353: 354: uextkey=this.document.client.elements.uextkey.value; 355: lextkey=this.document.client.elements.lextkey.value; 356: initkeys(); 357: 358: this.document.server.elements.upass0.value 359: =crypted(this.document.client.elements.upass$now.value.substr(0,15)); 360: this.document.server.elements.upass1.value 361: =crypted(this.document.client.elements.upass$now.value.substr(15,15)); 362: this.document.server.elements.upass2.value 363: =crypted(this.document.client.elements.upass$now.value.substr(30,15)); 364: 365: this.document.client.elements.uname.value=''; 366: this.document.client.elements.upass$now.value=''; 367: 368: this.document.server.submit(); 369: return false; 370: } 371: </script> 372: ENDSCRIPT 373: 374: if ($fullgraph) { 375: $r->print( 376: '<table width="100%" cellpadding=0 cellspacing=0 border=0>'); 377: } 378: 379: $r->print(<<ENDSERVERFORM); 380: <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top"> 381: <input type="hidden" name="logtoken" value="$logtoken" /> 382: <input type="hidden" name="serverid" value="$lonhost" /> 383: <input type="hidden" name="interface" value="$env{'form.interface'}" /> 384: <input type="hidden" name="uname" value="" /> 385: <input type="hidden" name="upass0" value="" /> 386: <input type="hidden" name="upass1" value="" /> 387: <input type="hidden" name="upass2" value="" /> 388: <input type="hidden" name="udom" value="" /> 389: <input type="hidden" name="imagesuppress" value="" /> 390: <input type="hidden" name="appletsuppress" value="" /> 391: <input type="hidden" name="embedsuppress" value="" /> 392: <input type="hidden" name="fontenhance" value="" /> 393: <input type="hidden" name="blackwhite" value="" /> 394: <input type="hidden" name="remember" value="" /> 395: <input type="hidden" name="localpath" value="$env{'form.localpath'}" /> 396: <input type="hidden" name="localres" value="$env{'form.localres'}" /> 397: </form> 398: ENDSERVERFORM 399: if ($fullgraph) { $r->print(<<ENDTOP); 400:  401: <tr> 402: 403:  404: <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td> 405: </tr> 406: 407:  408: <tr> 409: 410:  411: <td width=182 height=27 bgcolor="$sidebg"> </td> 412: 413:  414: <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td> 415: 416:  417: <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td> 418: 419:  420: <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td> 421: </tr> 422: <tr> 423: 424:  425:  426: <td valign="top" height=60 align="center" bgcolor="$sidebg"> 427: <a href="/adm/login?interface=textual"><img src="$iconpath/$lt{'access'}" border=0 alt="Accessibility Options" /></a> 428: <br /> 429: <a href="/adm/about.html"><img src="$iconpath/$lt{'about'}" border=0 alt="About LON-CAPA" /></a> 430: </td> 431: 432:  433:  434: <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td> 435: 436:  437:  438: <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg"> 439: <center> 440: <img src="$logo" alt="" /> 441: </center> 442: </td> 443: 444:  445: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td> 446: </tr> 447: <tr> 448: 449:  450:  451: <td align="center" valign="middle" bgcolor="$sidebg"> 452: ENDTOP 453: } else { 454: $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1><h2>Text-based Interface Login</h2>'.$announcements); 455: } 456: $r->print('<form name="client" onsubmit="return(send())">'); 457: unless ($fullgraph) { 458: $r->print(<<ENDACCESSOPTIONS); 459: <h3>Select Accessibility Options</h3> 460: <label><input type="checkbox" name="imagesuppress" /> Suppress rendering of images</label><br /> 461: <label><input type="checkbox" name="appletsuppress" /> Suppress Java applets</label><br /> 462: <label><input type="checkbox" name="embedsuppress" /> Suppress rendering of embedded multimedia</label><br /> 463: <label><input type="checkbox" name="fontenhance" /> Increase font size</label><br /> 464: <label><input type="checkbox" name="blackwhite" /> Switch to black and white mode</label><br /> 465: <p>If you have accessibility needs that are not addressed by this interface, 466: please 467: contact the system administrator at <tt>$sysadm</tt>.</p><br /> 468: <input type="checkbox" name="remember" /> Remember these settings for next login<hr /> 469: ENDACCESSOPTIONS 470: } else { 471: $r->print(<<ENDNOOPT); 472: <input type="hidden" name="imagesuppress" value="" /> 473: <input type="hidden" name="embedsuppress" value="" /> 474: <input type="hidden" name="appletsuppress" value="" /> 475: <input type="hidden" name="fontenhance" value="" /> 476: <input type="hidden" name="blackwhite" value="" /> 477: <input type="hidden" name="remember" value="" /> 478: ENDNOOPT 479: } 480: $r->print(<<ENDLOGIN); 481: <input type="hidden" name="lextkey" value="$lextkey"> 482: <input type="hidden" name="uextkey" value="$uextkey"> 483: 484:  485: <table border=0 cellspacing=0 cellpadding=0> 486: <tr><td bgcolor="$sidebg" colspan=2><img src="$iconpath/$lt{'auth'}" alt="User Authentication" /></td></tr> 487: <tr> 488: <td bgcolor="$mainbg"><br /><font size=-1><b>   $lt{'un'}:</b></font></td> 489: <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td> 490: </tr> 491: <tr> 492: <td bgcolor="$mainbg"><font size=-1><b>   $lt{'pw'}:</b></font></td> 493: <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td> 494: </tr> 495: <tr> 496: <td bgcolor="$mainbg"><font size=-1><b>   $lt{'dom'}:</b></font></td> 497: <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td> 498: </tr> 499: <tr> 500: <td bgcolor="$mainbg">   <a href="/adm/loginproblems.html">$lt{'help'}</a></td> 501: <td bgcolor="$mainbg" valign="bottom" align="center"> 502: <br /> 503: <input type="submit" value="$lt{'log'}" /> 504: </td> 505: </tr> 506: </table> 507:  508: </form> 509: ENDLOGIN 510: if ($fullgraph) { 511: my $helpdeskscript; 512: my $contactblock = &contactdisplay(\%lt,$sysadm,$servadm,$version,$authdomain,\$helpdeskscript); 513: $r->print(<<ENDDOCUMENT); 514: </td> 515: 516:  517: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td> 518: 519:  520: <td bgcolor="$mainbg">$announcements</td> 521: 522:  523: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td> 524: </tr> 525: <tr> 526: 527:  528: <td bgcolor="$sidebg" valign="middle" align="left"> 529: <br /> 530: <table border=0 cellspacing=0 cellpadding=0> 531: <tr> 532: <td bgcolor="$sidebg" align="left" valign="top"> 533: <small><b>   $lt{'dom'}: </b></small> 534: </td> 535: <td bgcolor="$sidebg" align="left" valign="top"> 536: <small><tt> $domain</tt></small> 537: </td> 538: </tr> 539: <tr> 540: <td bgcolor="$sidebg" align="left" valign="top"> 541: <small><b>   $lt{'serv'}: </b></small> 542: </td> 543: <td bgcolor="$sidebg" align="left" valign="top"> 544: <small><tt> $lonhost ($role)</tt></small> 545: </td> 546: </tr> 547: <tr> 548: <td bgcolor="$sidebg" align="left" valign="top"> 549: <small><b>   $lt{'load'}: </b></small> 550: </td> 551: <td bgcolor="$sidebg" align="left" valign="top"> 552: <small><tt> $loadpercent $lt{'perc'}</tt></small> 553: </td> 554: </tr> 555: <tr> 556: <td bgcolor="$sidebg" align="left" valign="top"> 557: <small><b>   $lt{'userload'}: </b></small> 558: </td> 559: <td bgcolor="$sidebg" align="left" valign="top"> 560: <small><tt> $userloadpercent $lt{'perc'}</tt></small> 561: </td> 562: </tr> 563: </table> 564: <br /> 565: $contactblock 566: </td> 567: 568:  569: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td> 570: 571:  572: <td width="100%" valign="bottom" bgcolor="$mainbg"> 573: $domainlogo 574: </td> 575: 576:  577: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td> 578: </tr> 579: <tr> 580: 581:  582: <td bgcolor="$sidebg"> </td> 583: 584:  585: <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td> 586: 587:  588: <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td> 589: 590:  591: <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td> 592: </tr> 593: </table> 594: 595: <script type="text/javascript"> 596: // the if prevents the script error if the browser can not handle this 597: if ( document.client.uname ) { document.client.uname.focus(); } 598: </script> 599: $helpdeskscript 600: 601: ENDDOCUMENT 602: } 603: $r->print('</body></html>'); 604: return OK; 605: } 606: 607: sub contactdisplay { 608: my ($lt,$sysadm,$servadm,$version,$authdomain,$helpdeskscript) = @_; 609: my $contactblock; 610: my $showsysadm = 1; 611: my $showservadm = 1; 612: my $showhelpdesk = 0; 613: my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'}; 614: if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) { 615: $showhelpdesk = 1; 616: } 617: if ($showsysadm) { 618: $contactblock .= '<b>   '.$$lt{'sysadm'}.':</b><br />'. 619: '<tt>      '.$sysadm.'</tt><br />'; 620: } 621: if ($showservadm) { 622: $contactblock .= '<b>   '.$$lt{'servadm'}.':</b><br />'. 623: '<tt>      '.$servadm.'</tt><br /> <br />'; 624: } 625: if ($showhelpdesk) { 626: $contactblock .= '<b>   <a href="javascript:helpdesk()">'.$$lt{'helpdesk'}.'</a></b><br />'; 627: my $thisurl = &escape('/adm/login'); 628: $$helpdeskscript = <<"ENDSCRIPT"; 629: <script type="text/javascript"> 630: function helpdesk() { 631: var codedom = document.client.udom.value; 632: if (codedom == '') { 633: codedom = "$authdomain"; 634: } 635: var querystr = "origurl=$thisurl&codedom="+codedom; 636: document.location.href = "/adm/helpdesk?"+querystr; 637: return; 638: } 639: </script> 640: ENDSCRIPT 641: } 642: $contactblock .= <<"ENDBLOCK"; 643:    $version 644: ENDBLOCK 645: return $contactblock; 646: } 647: 648: 649: 1; 650: __END__