loncom/auth/lonlogin.pm - view

File: [LON-CAPA] / loncom / auth / lonlogin.pm
Revision 1.83: download - view: text, annotated - select for diffs
Fri Nov 10 02:02:57 2006 UTC (17 years, 6 months ago) by raeburn
Branches: MAIN
CVS tags: HEAD

Modify tmpput handler in lond to use md5_hash of random items when creating token for password resets to provide less deterministic token.

Add an extra argument to lonnet::tmpput() so context is included when request sent to lond (if context argument was supplied).  It appears some uses of lond::tmpput make use of the number_IP_number structure of current token.

Add Forgot Password link to log-in page.

Some wording changes in reset password page.

More comprehensive check of e-mail for valid format.

Require user to provide e-mail address when requesting password change, and compare with e-mail in record associated with LON-CAPA user account.

1: # The LearningOnline Network 2: # Login Screen 3: # 4: # $Id: lonlogin.pm,v 1.83 2006/11/10 02:02:57 raeburn 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 $lonhost = $r->dir_config('lonHostID'); 154: my $tabdir = $r->dir_config('lonTabDir'); 155: my $include = $r->dir_config('lonIncludes'); 156: my $expire = $r->dir_config('lonExpire'); 157: my $version = $r->dir_config('lonVersion'); 158: my $host_name = $Apache::lonnet::hostname{$lonhost}; 159: 160: # --------------------------------------------- Default values for login fields 161: 162: my $authusername=($env{'form.username'}?$env{'form.username'}:''); 163: my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain); 164: 165: # ---------------------------------------------------------- Determine own load 166: my $loadavg; 167: { 168: my $loadfile=Apache::File->new('/proc/loadavg'); 169: $loadavg=<$loadfile>; 170: } 171: $loadavg =~ s/\s.*//g; 172: my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim); 173: my $userloadpercent=&Apache::lonnet::userload(); 174: 175: # ------------------------------------------------------- Do the load balancing 176: my $otherserver= &Apache::lonnet::absolute_url($host_name); 177: my $firsturl= 178: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'}); 179: # ---------------------------------------- Are we access server and overloaded? 180: if (($role eq 'access') && 181: (($userloadpercent>100.0)||($loadpercent>100.0))) { 182: my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent); 183: if ($unloaded) { $otherserver=$unloaded; } 184: } 185: 186: # ----------------------------------------------------------- Get announcements 187: my $announcements=&Apache::lonnet::getannounce(); 188: # -------------------------------------------------------- Set login parameters 189: 190: my @hexstr=('0','1','2','3','4','5','6','7', 191: '8','9','a','b','c','d','e','f'); 192: my $lkey=''; 193: for (0..7) { 194: $lkey.=$hexstr[rand(15)]; 195: } 196: 197: my $ukey=''; 198: for (0..7) { 199: $ukey.=$hexstr[rand(15)]; 200: } 201: 202: my $lextkey=hex($lkey); 203: if ($lextkey>2147483647) { $lextkey-=4294967296; } 204: 205: my $uextkey=hex($ukey); 206: if ($uextkey>2147483647) { $uextkey-=4294967296; } 207: 208: # -------------------------------------------------------- Store away log token 209: my $logtoken=Apache::lonnet::reply( 210: 'tmpput:'.$ukey.$lkey.'&'.$firsturl, 211: $lonhost); 212: 213: # ------------------- If we cannot talk to ourselves, we are in serious trouble 214: 215: if ($logtoken eq 'con_lost') { 216: my $spares=''; 217: my $last; 218: foreach my $hostid (sort 219: { 220: $Apache::lonnet::hostname{$a} cmp 221: $Apache::lonnet::hostname{$b}; 222: } 223: keys(%Apache::lonnet::spareid)) { 224: next if ($hostid eq $lonhost); 225: next if ($last eq $Apache::lonnet::hostname{$hostid}); 226: $spares.='<br /><font size="+1"><a href="http://'. 227: $Apache::lonnet::hostname{$hostid}. 228: '/adm/login?domain='.$authdomain.'">'. 229: $Apache::lonnet::hostname{$hostid}.'</a>'. 230: ' (preferred)</font>'.$/; 231: $last=$Apache::lonnet::hostname{$hostid}; 232: } 233: $spares.= '<br />'; 234: foreach my $hostid (sort 235: { 236: $Apache::lonnet::hostname{$a} cmp 237: $Apache::lonnet::hostname{$b}; 238: } 239: keys(%Apache::lonnet::hostname)) { 240: next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid}); 241: next if ($last eq $Apache::lonnet::hostname{$hostid}); 242: $spares.='<br /><a href="http://'. 243: $Apache::lonnet::hostname{$hostid}. 244: '/adm/login?domain='.$authdomain.'">'. 245: $Apache::lonnet::hostname{$hostid}.'</a>'; 246: $last=$Apache::lonnet::hostname{$hostid}; 247: } 248: $r->print(<<ENDTROUBLE); 249: <html> 250: <head><title>The LearningOnline Network with CAPA</title></head> 251: <body bgcolor="#FFFFFF"> 252: <img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" /> 253: <h3>This LON-CAPA server is temporarily not available for login</h3> 254: <p>Please attempt to login to one of the following servers:</p>$spares 255: </body> 256: </html> 257: ENDTROUBLE 258: return OK; 259: } 260: 261: # ----------------------------------------------- Apparently we are in business 262: 263: my $domainlogo=&Apache::loncommon::domainlogo($domain); 264: 265: # --------------------------------------------------- Print login screen header 266: $r->print(<<ENDHEADER); 267: <html> 268: <head> 269: <meta HTTP-EQUIV="Refresh" CONTENT="$expire; url=/adm/roles" /> 270: <title>The LearningOnline Network with CAPA Login</title> 271: </head> 272: ENDHEADER 273: # ---------------------------------------------------- Serve out DES JavaScript 274: { 275: my $jsh=Apache::File->new($include."/londes.js"); 276: $r->print(<$jsh>); 277: } 278: 279: # ----------------------------------------------------------- Front page design 280: my $pgbg= 281: ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF'); 282: my $font= 283: ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000'); 284: my $link= 285: ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF'); 286: my $vlink= 287: ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF'); 288: my $alink=&Apache::loncommon::designparm('login.alink',$domain); 289: my $mainbg= 290: ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF'); 291: my $sidebg= 292: ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF'); 293: my $logo=&Apache::loncommon::designparm('login.logo',$domain); 294: my $img=&Apache::loncommon::designparm('login.img',$domain); 295: 296: # ----------------------------------------------------------------------- Texts 297: 298: my %lt=&Apache::lonlocal::texthash( 299: 'un' => 'Username', 300: 'pw' => 'Password', 301: 'dom' => 'Domain', 302: 'perc' => 'percent', 303: 'load' => 'Load', 304: 'userload' => 'User Load', 305: 'about' => 'aboutlon.gif', 306: 'access' => 'accessbutton.gif', 307: 'auth' => 'userauthentication.gif', 308: 'log' => 'Log in', 309: 'help' => 'Help', 310: 'serv' => 'Server', 311: 'helpdesk' => 'Contact Helpdesk', 312: 'forgotpw' => 'Forgot password?'); 313: # -------------------------------------------------- Change password field name 314: my $now=time; 315: my $forgotpw = &forgotpwdisplay(\%lt); 316: # ---------------------------------------------------------- Serve rest of page 317: $r->print(<<ENDSCRIPT); 318: 319: <body bgcolor="$pgbg" text="$font" link="$link" vlink="$vlink" alink="$alink" 320: topmargin=0 leftmargin=0 marginwidth=0 marginheight=0> 321: 322: <script language="JavaScript"> 323: function send() 324: { 325: this.document.server.elements.uname.value 326: =this.document.client.elements.uname.value; 327: 328: this.document.server.elements.udom.value 329: =this.document.client.elements.udom.value; 330: 331: this.document.server.elements.imagesuppress.value 332: =this.document.client.elements.imagesuppress.checked; 333: 334: this.document.server.elements.embedsuppress.value 335: =this.document.client.elements.embedsuppress.checked; 336: 337: this.document.server.elements.appletsuppress.value 338: =this.document.client.elements.appletsuppress.checked; 339: 340: this.document.server.elements.fontenhance.value 341: =this.document.client.elements.fontenhance.checked; 342: 343: this.document.server.elements.blackwhite.value 344: =this.document.client.elements.blackwhite.checked; 345: 346: this.document.server.elements.remember.value 347: =this.document.client.elements.remember.checked; 348: 349: uextkey=this.document.client.elements.uextkey.value; 350: lextkey=this.document.client.elements.lextkey.value; 351: initkeys(); 352: 353: this.document.server.elements.upass0.value 354: =crypted(this.document.client.elements.upass$now.value.substr(0,15)); 355: this.document.server.elements.upass1.value 356: =crypted(this.document.client.elements.upass$now.value.substr(15,15)); 357: this.document.server.elements.upass2.value 358: =crypted(this.document.client.elements.upass$now.value.substr(30,15)); 359: 360: this.document.client.elements.uname.value=''; 361: this.document.client.elements.upass$now.value=''; 362: 363: this.document.server.submit(); 364: return false; 365: } 366: </script> 367: ENDSCRIPT 368: 369: if ($fullgraph) { 370: $r->print( 371: '<table width="100%" cellpadding=0 cellspacing=0 border=0>'); 372: } 373: 374: $r->print(<<ENDSERVERFORM); 375: <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top"> 376: <input type="hidden" name="logtoken" value="$logtoken" /> 377: <input type="hidden" name="serverid" value="$lonhost" /> 378: <input type="hidden" name="interface" value="$env{'form.interface'}" /> 379: <input type="hidden" name="uname" value="" /> 380: <input type="hidden" name="upass0" value="" /> 381: <input type="hidden" name="upass1" value="" /> 382: <input type="hidden" name="upass2" value="" /> 383: <input type="hidden" name="udom" value="" /> 384: <input type="hidden" name="imagesuppress" value="" /> 385: <input type="hidden" name="appletsuppress" value="" /> 386: <input type="hidden" name="embedsuppress" value="" /> 387: <input type="hidden" name="fontenhance" value="" /> 388: <input type="hidden" name="blackwhite" value="" /> 389: <input type="hidden" name="remember" value="" /> 390: <input type="hidden" name="localpath" value="$env{'form.localpath'}" /> 391: <input type="hidden" name="localres" value="$env{'form.localres'}" /> 392: </form> 393: ENDSERVERFORM 394: if ($fullgraph) { $r->print(<<ENDTOP); 395:  396: <tr> 397: 398:  399: <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td> 400: </tr> 401: 402:  403: <tr> 404: 405:  406: <td width=182 height=27 bgcolor="$sidebg"> </td> 407: 408:  409: <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td> 410: 411:  412: <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td> 413: 414:  415: <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td> 416: </tr> 417: <tr> 418: 419:  420:  421: <td valign="top" height=60 align="center" bgcolor="$sidebg"> 422: <a href="/adm/login?interface=textual"><img src="$iconpath/$lt{'access'}" border=0 alt="Accessibility Options" /></a> 423: <br /> 424: <a href="/adm/about.html"><img src="$iconpath/$lt{'about'}" border=0 alt="About LON-CAPA" /></a> 425: </td> 426: 427:  428:  429: <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td> 430: 431:  432:  433: <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg"> 434: <center> 435: <img src="$logo" alt="" /> 436: </center> 437: </td> 438: 439:  440: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td> 441: </tr> 442: <tr> 443: 444:  445:  446: <td align="center" valign="middle" bgcolor="$sidebg"> 447: ENDTOP 448: } else { 449: $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1><h2>Text-based Interface Login</h2>'.$announcements); 450: } 451: $r->print('<form name="client" onsubmit="return(send())">'); 452: unless ($fullgraph) { 453: $r->print(<<ENDACCESSOPTIONS); 454: <h3>Select Accessibility Options</h3> 455: <label><input type="checkbox" name="imagesuppress" /> Suppress rendering of images</label><br /> 456: <label><input type="checkbox" name="appletsuppress" /> Suppress Java applets</label><br /> 457: <label><input type="checkbox" name="embedsuppress" /> Suppress rendering of embedded multimedia</label><br /> 458: <label><input type="checkbox" name="fontenhance" /> Increase font size</label><br /> 459: <label><input type="checkbox" name="blackwhite" /> Switch to black and white mode</label><br /> 460: <input type="checkbox" name="remember" /> Remember these settings for next login<hr /> 461: ENDACCESSOPTIONS 462: } else { 463: $r->print(<<ENDNOOPT); 464: <input type="hidden" name="imagesuppress" value="" /> 465: <input type="hidden" name="embedsuppress" value="" /> 466: <input type="hidden" name="appletsuppress" value="" /> 467: <input type="hidden" name="fontenhance" value="" /> 468: <input type="hidden" name="blackwhite" value="" /> 469: <input type="hidden" name="remember" value="" /> 470: ENDNOOPT 471: } 472: $r->print(<<ENDLOGIN); 473: <input type="hidden" name="lextkey" value="$lextkey"> 474: <input type="hidden" name="uextkey" value="$uextkey"> 475: 476:  477: <table border=0 cellspacing=0 cellpadding=0> 478: <tr><td bgcolor="$sidebg" colspan=2><img src="$iconpath/$lt{'auth'}" alt="User Authentication" /></td></tr> 479: <tr> 480: <td bgcolor="$mainbg"><br /><font size=-1><b>   $lt{'un'}:</b></font></td> 481: <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td> 482: </tr> 483: <tr> 484: <td bgcolor="$mainbg"><font size=-1><b>   $lt{'pw'}:</b></font></td> 485: <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td> 486: </tr> 487: <tr> 488: <td bgcolor="$mainbg"><font size=-1><b>   $lt{'dom'}:</b></font></td> 489: <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td> 490: </tr> 491: <tr> 492: <td bgcolor="$mainbg">   <a href="/adm/loginproblems.html">$lt{'help'}</a></td> 493: <td bgcolor="$mainbg" valign="bottom" align="center"> 494: <br /> 495: <input type="submit" value="$lt{'log'}" /> 496: </td> 497: </tr> 498: <tr> 499: <td bgcolor="$mainbg" valign="bottom" align="left" colspan="2"> 500: $forgotpw 501: </td> 502: </tr> 503: </table> 504:  505: </form> 506: ENDLOGIN 507: if ($fullgraph) { 508: my $helpdeskscript; 509: my $contactblock = &contactdisplay(\%lt,$version,$authdomain,\$helpdeskscript); 510: $r->print(<<ENDDOCUMENT); 511: </td> 512: 513:  514: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td> 515: 516:  517: <td bgcolor="$mainbg">$announcements</td> 518: 519:  520: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td> 521: </tr> 522: <tr> 523: 524:  525: <td bgcolor="$sidebg" valign="middle" align="left"> 526: <br /> 527: <table border=0 cellspacing=0 cellpadding=0> 528: <tr> 529: <td bgcolor="$sidebg" align="left" valign="top"> 530: <small><b>   $lt{'dom'}: </b></small> 531: </td> 532: <td bgcolor="$sidebg" align="left" valign="top"> 533: <small><tt> $domain</tt></small> 534: </td> 535: </tr> 536: <tr> 537: <td bgcolor="$sidebg" align="left" valign="top"> 538: <small><b>   $lt{'serv'}: </b></small> 539: </td> 540: <td bgcolor="$sidebg" align="left" valign="top"> 541: <small><tt> $lonhost ($role)</tt></small> 542: </td> 543: </tr> 544: <tr> 545: <td bgcolor="$sidebg" align="left" valign="top"> 546: <small><b>   $lt{'load'}: </b></small> 547: </td> 548: <td bgcolor="$sidebg" align="left" valign="top"> 549: <small><tt> $loadpercent $lt{'perc'}</tt></small> 550: </td> 551: </tr> 552: <tr> 553: <td bgcolor="$sidebg" align="left" valign="top"> 554: <small><b>   $lt{'userload'}: </b></small> 555: </td> 556: <td bgcolor="$sidebg" align="left" valign="top"> 557: <small><tt> $userloadpercent $lt{'perc'}</tt></small> 558: </td> 559: </tr> 560: </table> 561: <br /> 562: $contactblock 563: </td> 564: 565:  566: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td> 567: 568:  569: <td width="100%" valign="bottom" bgcolor="$mainbg"> 570: $domainlogo 571: </td> 572: 573:  574: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td> 575: </tr> 576: <tr> 577: 578:  579: <td bgcolor="$sidebg"> </td> 580: 581:  582: <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td> 583: 584:  585: <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td> 586: 587:  588: <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td> 589: </tr> 590: </table> 591: 592: <script type="text/javascript"> 593: // the if prevents the script error if the browser can not handle this 594: if ( document.client.uname ) { document.client.uname.focus(); } 595: </script> 596: $helpdeskscript 597: 598: ENDDOCUMENT 599: } 600: $r->print('</body></html>'); 601: return OK; 602: } 603: 604: sub contactdisplay { 605: my ($lt,$version,$authdomain,$helpdeskscript) = @_; 606: my $contactblock; 607: my $showhelpdesk = 0; 608: my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'}; 609: if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) { 610: $showhelpdesk = 1; 611: } 612: if ($showhelpdesk) { 613: $contactblock .= '<b>   <a href="javascript:helpdesk()">'.$$lt{'helpdesk'}.'</a></b><br />'; 614: my $thisurl = &escape('/adm/login'); 615: $$helpdeskscript = <<"ENDSCRIPT"; 616: <script type="text/javascript"> 617: function helpdesk() { 618: var codedom = document.client.udom.value; 619: if (codedom == '') { 620: codedom = "$authdomain"; 621: } 622: var querystr = "origurl=$thisurl&codedom="+codedom; 623: document.location.href = "/adm/helpdesk?"+querystr; 624: return; 625: } 626: </script> 627: ENDSCRIPT 628: } 629: $contactblock .= <<"ENDBLOCK"; 630:    $version 631: ENDBLOCK 632: return $contactblock; 633: } 634: 635: sub forgotpwdisplay { 636: my ($lt) = @_; 637: my $prompt_for_resetpw = 1; 638: if ($prompt_for_resetpw) { 639: return '<br />   <a href="/adm/resetpw">'.$lt->{'forgotpw'}.'</a></b><br /><br />'; 640: } 641: return; 642: } 643: 644: 645: 1; 646: __END__