loncom/auth/lonlogin.pm - view

File: [LON-CAPA] / loncom / auth / lonlogin.pm
Revision 1.147: download - view: text, annotated - select for diffs
Thu Mar 3 06:37:30 2011 UTC (13 years, 2 months ago) by raeburn
Branches: MAIN
CVS tags: version_2_10_0, HEAD

- Improve changes in rev 1.145.
  - No display of table rows for User Load, Server Load, or Version if
    there are no numbers to display.

1: # The LearningOnline Network 2: # Login Screen 3: # 4: # $Id: lonlogin.pm,v 1.147 2011/03/03 06:37:30 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 Apache::File (); 34: use Apache::lonnet; 35: use Apache::loncommon(); 36: use Apache::lonauth(); 37: use Apache::lonlocal; 38: use Apache::migrateuser(); 39: use lib '/home/httpd/lib/perl/'; 40: use LONCAPA; 41: 42: sub handler { 43: my $r = shift; 44: 45: &Apache::loncommon::get_unprocessed_cgi 46: (join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'}, 47: $ENV{'REDIRECT_QUERY_STRING'}), 48: ['interface','username','domain','firsturl','localpath','localres', 49: 'token','role','symb']); 50: if (!defined($env{'form.firsturl'})) { 51: &Apache::lonacc::get_posted_cgi($r,['firsturl']); 52: } 53: 54: # -- check if they are a migrating user 55: if (defined($env{'form.token'})) { 56: return &Apache::migrateuser::handler($r); 57: } 58: 59: &Apache::loncommon::no_cache($r); 60: &Apache::lonlocal::get_language_handle($r); 61: &Apache::loncommon::content_type($r,'text/html'); 62: $r->send_http_header; 63: return OK if $r->header_only; 64: 65: 66: # Are we re-routing? 67: if (-e '/home/httpd/html/lon-status/reroute.txt') { 68: &Apache::lonauth::reroute($r); 69: return OK; 70: } 71: 72: $env{'form.firsturl'} =~ s/(`)/'/g; 73: 74: # -------------------------------- Prevent users from attempting to login twice 75: my $handle = &Apache::lonnet::check_for_valid_session($r); 76: if ($handle ne '') { 77: my $lonidsdir=$r->dir_config('lonIDsDir'); 78: if ($handle=~/^publicuser\_/) { 79: # For "public user" - remove it, we apparently really want to login 80: unlink($r->dir_config('lonIDsDir')."/$handle.id"); 81: } else { 82: # Indeed, a valid token is found 83: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle); 84: my $start_page = 85: &Apache::loncommon::start_page('Already logged in'); 86: my $end_page = 87: &Apache::loncommon::end_page(); 88: my $dest = '/adm/roles'; 89: if ($env{'form.firsturl'} ne '') { 90: $dest = $env{'form.firsturl'}; 91: } 92: $r->print( 93: $start_page 94: .'<h1>'.&mt('You are already logged in!').'</h1>' 95: .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].', 96: '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>' 97: .$end_page 98: ); 99: return OK; 100: } 101: } 102: 103: # ---------------------------------------------------- No valid token, continue 104: 105: # ---------------------------- Not possible to really login to domain "public" 106: if ($env{'form.domain'} eq 'public') { 107: $env{'form.domain'}=''; 108: $env{'form.username'}=''; 109: } 110: # ----------------------------------------------------------- Process Interface 111: $env{'form.interface'}=~s/\W//g; 112: 113: my $httpbrowser=$ENV{"HTTP_USER_AGENT"}; 114: 115: my $iconpath= 116: &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL')); 117: 118: my $lonhost = $r->dir_config('lonHostID'); 119: my $domain = &Apache::lonnet::default_login_domain(); 120: if ($lonhost ne '') { 121: my $redirect = &check_loginvia($domain,$lonhost); 122: if ($redirect) { 123: $r->print($redirect); 124: return OK; 125: } 126: } 127: 128: if (($env{'form.domain'}) && 129: (&Apache::lonnet::domain($env{'form.domain'},'description'))) { 130: $domain=$env{'form.domain'}; 131: } 132: my $role = $r->dir_config('lonRole'); 133: my $loadlim = $r->dir_config('lonLoadLim'); 134: my $uloadlim= $r->dir_config('lonUserLoadLim'); 135: my $servadm = $r->dir_config('lonAdmEMail'); 136: my $tabdir = $r->dir_config('lonTabDir'); 137: my $include = $r->dir_config('lonIncludes'); 138: my $expire = $r->dir_config('lonExpire'); 139: my $version = $r->dir_config('lonVersion'); 140: my $host_name = &Apache::lonnet::hostname($lonhost); 141: 142: # --------------------------------------------- Default values for login fields 143: 144: my $authusername=($env{'form.username'}?$env{'form.username'}:''); 145: my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain); 146: 147: # ---------------------------------------------------------- Determine own load 148: my $loadavg; 149: { 150: my $loadfile=Apache::File->new('/proc/loadavg'); 151: $loadavg=<$loadfile>; 152: } 153: $loadavg =~ s/\s.*//g; 154: 155: my ($loadpercent,$userloadpercent); 156: if ($loadlim) { 157: $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim); 158: } 159: if ($uloadlim) { 160: $userloadpercent=&Apache::lonnet::userload(); 161: } 162: 163: my $firsturl= 164: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'}); 165: 166: # ----------------------------------------------------------- Get announcements 167: my $announcements=&Apache::lonnet::getannounce(); 168: # -------------------------------------------------------- Set login parameters 169: 170: my @hexstr=('0','1','2','3','4','5','6','7', 171: '8','9','a','b','c','d','e','f'); 172: my $lkey=''; 173: for (0..7) { 174: $lkey.=$hexstr[rand(15)]; 175: } 176: 177: my $ukey=''; 178: for (0..7) { 179: $ukey.=$hexstr[rand(15)]; 180: } 181: 182: my $lextkey=hex($lkey); 183: if ($lextkey>2147483647) { $lextkey-=4294967296; } 184: 185: my $uextkey=hex($ukey); 186: if ($uextkey>2147483647) { $uextkey-=4294967296; } 187: 188: # -------------------------------------------------------- Store away log token 189: my $tokenextras; 190: if ($env{'form.role'}) { 191: $tokenextras = '&role='.&escape($env{'form.role'}); 192: } 193: if ($env{'form.symb'}) { 194: if (!$tokenextras) { 195: $tokenextras = '&'; 196: } 197: $tokenextras .= '&symb='.&escape($env{'form.symb'}); 198: } 199: my $logtoken=Apache::lonnet::reply( 200: 'tmpput:'.$ukey.$lkey.'&'.$firsturl.$tokenextras, 201: $lonhost); 202: 203: # ------------------- If we cannot talk to ourselves, we are in serious trouble 204: 205: if ($logtoken eq 'con_lost') { 206: my $spares=''; 207: my $last; 208: foreach my $hostid (sort 209: { 210: &Apache::lonnet::hostname($a) cmp 211: &Apache::lonnet::hostname($b); 212: } 213: keys(%Apache::lonnet::spareid)) { 214: next if ($hostid eq $lonhost); 215: my $hostname = &Apache::lonnet::hostname($hostid); 216: next if ($last eq $hostname); 217: $spares.='<br /><font size="+1"><a href="http://'. 218: $hostname. 219: '/adm/login?domain='.$authdomain.'">'. 220: $hostname.'</a>'. 221: ' '.&mt('(preferred)').'</font>'.$/; 222: $last=$hostname; 223: } 224: $spares.= '<br />'; 225: my %all_hostnames = &Apache::lonnet::all_hostnames(); 226: foreach my $hostid (sort 227: { 228: &Apache::lonnet::hostname($a) cmp 229: &Apache::lonnet::hostname($b); 230: } 231: keys(%all_hostnames)) { 232: next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid}); 233: my $hostname = &Apache::lonnet::hostname($hostid); 234: next if ($last eq $hostname); 235: $spares.='<br /><a href="http://'. 236: $hostname. 237: '/adm/login?domain='.$authdomain.'">'. 238: $hostname.'</a>'; 239: $last=$hostname; 240: } 241: $r->print( 242: '<html>' 243: .'<head><title>' 244: .&mt('The LearningOnline Network with CAPA') 245: .'</title></head>' 246: .'<body bgcolor="#FFFFFF">' 247: .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>' 248: .'<img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />' 249: .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>' 250: .'<p>'.&mt('Please attempt to login to one of the following servers:').'</p>' 251: .$spares 252: .'</body>' 253: .'</html>' 254: ); 255: return OK; 256: } 257: 258: # ----------------------------------------------- Apparently we are in business 259: $servadm=~s/\,/\<br \/\>/g; 260: 261: # ----------------------------------------------------------- Front page design 262: my $pgbg=&Apache::loncommon::designparm('login.pgbg',$domain); 263: my $font=&Apache::loncommon::designparm('login.font',$domain); 264: my $link=&Apache::loncommon::designparm('login.link',$domain); 265: my $vlink=&Apache::loncommon::designparm('login.vlink',$domain); 266: my $alink=&Apache::loncommon::designparm('login.alink',$domain); 267: my $mainbg=&Apache::loncommon::designparm('login.mainbg',$domain); 268: my $loginbox_bg=&Apache::loncommon::designparm('login.sidebg',$domain); 269: my $loginbox_header_bgcol=&Apache::loncommon::designparm('login.bgcol',$domain); 270: my $loginbox_header_textcol=&Apache::loncommon::designparm('login.textcol',$domain); 271: my $logo=&Apache::loncommon::designparm('login.logo',$domain); 272: my $img=&Apache::loncommon::designparm('login.img',$domain); 273: my $domainlogo=&Apache::loncommon::domainlogo($domain); 274: my $showbanner = 1; 275: my $showmainlogo = 1; 276: if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) { 277: $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain); 278: } 279: if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) { 280: $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain); 281: } 282: my $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain); 283: my $showcoursecat = 284: &Apache::loncommon::designparm('login.coursecatalog',$domain); 285: my $shownewuserlink = 286: &Apache::loncommon::designparm('login.newuser',$domain); 287: my $now=time; 288: my $js = (<<ENDSCRIPT); 289: 290: <script type="text/javascript" language="JavaScript"> 291: // <![CDATA[ 292: function send() 293: { 294: this.document.server.elements.uname.value 295: =this.document.client.elements.uname.value; 296: 297: this.document.server.elements.udom.value 298: =this.document.client.elements.udom.value; 299: 300: uextkey=this.document.client.elements.uextkey.value; 301: lextkey=this.document.client.elements.lextkey.value; 302: initkeys(); 303: 304: this.document.server.elements.upass0.value 305: =crypted(this.document.client.elements.upass$now.value.substr(0,15)); 306: this.document.server.elements.upass1.value 307: =crypted(this.document.client.elements.upass$now.value.substr(15,15)); 308: this.document.server.elements.upass2.value 309: =crypted(this.document.client.elements.upass$now.value.substr(30,15)); 310: 311: this.document.client.elements.uname.value=''; 312: this.document.client.elements.upass$now.value=''; 313: 314: this.document.server.submit(); 315: return false; 316: } 317: 318: function enableInput() { 319: this.document.client.elements.upass$now.removeAttribute("readOnly"); 320: this.document.client.elements.uname.removeAttribute("readOnly"); 321: this.document.client.elements.udom.removeAttribute("readOnly"); 322: return; 323: } 324: 325: // ]]> 326: </script> 327: 328: ENDSCRIPT 329: 330: # --------------------------------------------------- Print login screen header 331: 332: my %add_entries = ( 333: bgcolor => "$mainbg", 334: text => "$font", 335: link => "$link", 336: vlink => "$vlink", 337: alink => "$alink", 338: onload => 'javascript:enableInput();',); 339: 340: $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js, 341: { 'redirect' => [$expire,'/adm/roles'], 342: 'add_entries' => \%add_entries, 343: 'only_body' => 1,})); 344: 345: # ----------------------------------------------------------------------- Texts 346: 347: my %lt=&Apache::lonlocal::texthash( 348: 'un' => 'Username', 349: 'pw' => 'Password', 350: 'dom' => 'Domain', 351: 'perc' => 'percent', 352: 'load' => 'Server Load', 353: 'userload' => 'User Load', 354: 'catalog' => 'Course/Community Catalog', 355: 'log' => 'Log in', 356: 'help' => 'Log-in Help', 357: 'serv' => 'Server', 358: 'servadm' => 'Server Administration', 359: 'helpdesk' => 'Contact Helpdesk', 360: 'forgotpw' => 'Forgot password?', 361: 'newuser' => 'New User?', 362: ); 363: # -------------------------------------------------- Change password field name 364: 365: my $forgotpw = &forgotpwdisplay(%lt); 366: $forgotpw .= '<br />' if $forgotpw; 367: my $loginhelp = &loginhelpdisplay($authdomain,%lt); 368: $loginhelp .= '<br />' if $loginhelp; 369: 370: # ---------------------------------------------------- Serve out DES JavaScript 371: { 372: my $jsh=Apache::File->new($include."/londes.js"); 373: $r->print(<$jsh>); 374: } 375: # ---------------------------------------------------------- Serve rest of page 376: 377: $r->print( 378: '<div class="LC_Box"' 379: .' style="margin:0 auto; padding:10px; width:90%; height: auto; background-color:#FFFFFF;">' 380: ); 381: 382: # 383: # If the loadbalancing yielded just http:// because perhaps there's no loadbalancing? 384: # then just us a relative link to authenticate: 385: # 386: 387: $r->print(<<ENDSERVERFORM); 388: <form name="server" action="/adm/authenticate" method="post" target="_top"> 389: <input type="hidden" name="logtoken" value="$logtoken" /> 390: <input type="hidden" name="serverid" value="$lonhost" /> 391: <input type="hidden" name="uname" value="" /> 392: <input type="hidden" name="upass0" value="" /> 393: <input type="hidden" name="upass1" value="" /> 394: <input type="hidden" name="upass2" value="" /> 395: <input type="hidden" name="udom" value="" /> 396: <input type="hidden" name="localpath" value="$env{'form.localpath'}" /> 397: <input type="hidden" name="localres" value="$env{'form.localres'}" /> 398: </form> 399: ENDSERVERFORM 400: my $coursecatalog; 401: if (($showcoursecat eq '') || ($showcoursecat)) { 402: $coursecatalog = &coursecatalog_link($lt{'catalog'}).'<br />'; 403: } 404: my $newuserlink; 405: if ($shownewuserlink) { 406: $newuserlink = &newuser_link($lt{'newuser'}).'<br />'; 407: } 408: my $logintitle = 409: '<h2 class="LC_hcell"' 410: .' style="background:'.$loginbox_header_bgcol.';' 411: .' color:'.$loginbox_header_textcol.'">' 412: .$lt{'log'} 413: .'</h2>'; 414: 415: my $noscript_warning='<noscript><span class="LC_warning"><b>' 416: .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.') 417: .'</b></span></noscript>'; 418: my $helpdeskscript; 419: my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail, 420: $authdomain,\$helpdeskscript); 421: 422: my $loginform=(<<LFORM); 423: <form name="client" action="" onsubmit="return(send())"> 424: <input type="hidden" name="lextkey" value="$lextkey" /> 425: <input type="hidden" name="uextkey" value="$uextkey" /> 426: <b><label for="uname">$lt{'un'}</label>:</b><br /> 427: <input type="text" name="uname" id="uname" size="15" value="$authusername" readonly="readonly" /><br /> 428: <b><label for="upass$now">$lt{'pw'}</label>:</b><br /> 429: <input type="password" name="upass$now" id="upass$now" size="15" readonly="readonly" /><br /> 430: <b><label for="udom">$lt{'dom'}</label>:</b><br /> 431: <input type="text" name="udom" id="udom" size="15" value="$authdomain" readonly="readonly" /><br /> 432: <input type="submit" value="$lt{'log'}" /> 433: </form> 434: LFORM 435: 436: if ($showbanner) { 437: $r->print(<<HEADER); 438:  439: <div style="background:$pgbg;margin:0;width:100%;"> 440: <img src="$img" border="0" alt="The Learning Online Network with CAPA" /> 441: </div> 442: HEADER 443: } 444: $r->print(<<ENDTOP); 445: <div style="float:left;margin-top:0;"> 446: <div class="LC_Box" style="background:$loginbox_bg;"> 447: $logintitle 448: $loginform 449: $noscript_warning 450: </div> 451: 452: <div class="LC_Box" style="padding-top: 10px;"> 453: $loginhelp 454: $forgotpw 455: $contactblock 456: $newuserlink 457: $coursecatalog 458: </div> 459: </div> 460: 461: <div> 462: ENDTOP 463: if ($showmainlogo) { 464: $r->print(' <img src="'.$logo.'" alt="" />'."\n"); 465: } 466: $r->print(<<ENDTOP); 467: $announcements 468: </div> 469: <hr style="clear:both;" /> 470: ENDTOP 471: my ($domainrow,$serverrow,$loadrow,$userloadrow,$versionrow); 472: $domainrow = <<"END"; 473: <tr> 474: <td align="left" valign="top"> 475: <small><b>$lt{'dom'}: </b></small> 476: </td> 477: <td align="left" valign="top"> 478: <small><tt> $domain</tt></small> 479: </td> 480: </tr> 481: END 482: $serverrow = <<"END"; 483: <tr> 484: <td align="left" valign="top"> 485: <small><b>$lt{'serv'}: </b></small> 486: </td> 487: <td align="left" valign="top"> 488: <small><tt> $lonhost ($role)</tt></small> 489: </td> 490: </tr> 491: END 492: if ($loadlim) { 493: $loadrow = <<"END"; 494: <tr> 495: <td align="left" valign="top"> 496: <small><b>$lt{'load'}: </b></small> 497: </td> 498: <td align="left" valign="top"> 499: <small><tt> $loadpercent $lt{'perc'}</tt></small> 500: </td> 501: </tr> 502: END 503: } 504: if ($uloadlim) { 505: $userloadrow = <<"END"; 506: <tr> 507: <td align="left" valign="top"> 508: <small><b>$lt{'userload'}: </b></small> 509: </td> 510: <td align="left" valign="top"> 511: <small><tt> $userloadpercent $lt{'perc'}</tt></small> 512: </td> 513: </tr> 514: END 515: } 516: if (($version ne '') && ($version ne '')) { 517: $versionrow = <<"END"; 518: <tr> 519: <td colspan="2" align="left"> 520: <small>$version</small> 521: </td> 522: </tr> 523: END 524: } 525: 526: $r->print(<<ENDDOCUMENT); 527: <div style="float: left;"> 528: <table border="0" cellspacing="0" cellpadding="0"> 529: $domainrow 530: $serverrow 531: $loadrow 532: $userloadrow 533: $versionrow 534: </table> 535: </div> 536: <div style="float: right;"> 537: $domainlogo 538: </div> 539: <br style="clear:both;" /> 540: </div> 541: 542: <script type="text/javascript"> 543: // <![CDATA[ 544: // the if prevents the script error if the browser can not handle this 545: if ( document.client.uname ) { document.client.uname.focus(); } 546: // ]]> 547: </script> 548: $helpdeskscript 549: 550: ENDDOCUMENT 551: my %endargs = ( 'noredirectlink' => 1, ); 552: $r->print(&Apache::loncommon::end_page(\%endargs)); 553: return OK; 554: } 555: 556: sub check_loginvia { 557: my ($domain,$lonhost) = @_; 558: if ($domain eq '' || $lonhost eq '') { 559: return; 560: } 561: my %domconfhash = &Apache::loncommon::get_domainconf($domain); 562: my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost}; 563: my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost}; 564: my $output; 565: if ($loginvia ne '') { 566: my $noredirect; 567: my $ip = $ENV{'REMOTE_ADDR'}; 568: if ($ip eq '127.0.0.1') { 569: $noredirect = 1; 570: } else { 571: if ($loginvia_exempt ne '') { 572: my @exempt = split(',',$loginvia_exempt); 573: if (grep(/^\Q$ip\E$/,@exempt)) { 574: $noredirect = 1; 575: } 576: } 577: } 578: unless ($noredirect) { 579: my ($newhost,$path); 580: if ($loginvia =~ /:/) { 581: ($newhost,$path) = split(':',$loginvia); 582: } else { 583: $newhost = $loginvia; 584: } 585: if ($newhost ne $lonhost) { 586: if (&Apache::lonnet::hostname($newhost) ne '') { 587: $output = &redirect_page($newhost,$path); 588: } 589: } 590: } 591: } 592: return $output; 593: } 594: 595: sub redirect_page { 596: my ($desthost,$path) = @_; 597: my $protocol = $Apache::lonnet::protocol{$desthost}; 598: $protocol = 'http' if ($protocol ne 'https'); 599: unless ($path =~ m{^/}) { 600: $path = '/'.$path; 601: } 602: my $url = $protocol.'://'.&Apache::lonnet::hostname($desthost).$path; 603: if ($env{'form.firsturl'} ne '') { 604: $url .='?firsturl='.$env{'form.firsturl'}; 605: } 606: my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef, 607: {'redirect' => [0,$url],}); 608: my $end_page = &Apache::loncommon::end_page(); 609: return $start_page.$end_page; 610: } 611: 612: sub contactdisplay { 613: my ($lt,$servadm,$showadminmail,$authdomain,$helpdeskscript) = @_; 614: my $contactblock; 615: my $showhelpdesk = 0; 616: my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'}; 617: if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) { 618: $showhelpdesk = 1; 619: } 620: if ($servadm && $showadminmail) { 621: $contactblock .= $$lt{'servadm'}.':<br />'. 622: '<tt>'.$servadm.'</tt><br />'; 623: } 624: if ($showhelpdesk) { 625: $contactblock .= '<a href="javascript:helpdesk()">'.$lt->{'helpdesk'}.'</a><br />'; 626: my $thisurl = &escape('/adm/login'); 627: $$helpdeskscript = <<"ENDSCRIPT"; 628: <script type="text/javascript"> 629: // <![CDATA[ 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: // ]]> 640: </script> 641: ENDSCRIPT 642: } 643: return $contactblock; 644: } 645: 646: sub forgotpwdisplay { 647: my (%lt) = @_; 648: my $prompt_for_resetpw = 1; 649: if ($prompt_for_resetpw) { 650: return '<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a>'; 651: } 652: return; 653: } 654: 655: sub loginhelpdisplay { 656: my ($authdomain,%lt) = @_; 657: my $login_help = 1; 658: if ($login_help) { 659: my $dom = $authdomain; 660: if ($dom eq '') { 661: $dom = &Apache::lonnet::default_login_domain(); 662: } 663: my %helpconfig = &Apache::lonnet::get_dom('configuration',['helpsettings'],$dom); 664: my $loginhelp_url = $helpconfig{'helpsettings'}{'loginhelpurl'}; 665: if ($loginhelp_url ne '') { 666: return '<a href="'.$loginhelp_url.'">'.$lt{'help'}.'</a>'; 667: } else { 668: return '<a href="/adm/loginproblems.html">'.$lt{'help'}.'</a>'; 669: } 670: } 671: return; 672: } 673: 674: sub coursecatalog_link { 675: my ($linkname) = @_; 676: return <<"END"; 677: <a href="/adm/coursecatalog">$linkname</a> 678: END 679: } 680: 681: sub newuser_link { 682: my ($linkname) = @_; 683: return '<a href="/adm/createaccount">'.$linkname.'</a>'; 684: } 685: 686: 1; 687: __END__