loncom/auth/lonlogin.pm - view

File: [LON-CAPA] / loncom / auth / lonlogin.pm
Revision 1.196: download - view: text, annotated - select for diffs
Wed May 25 18:05:56 2022 UTC (2 years ago) by raeburn
Branches: MAIN
CVS tags: HEAD

- Bug 6907
  Stop deep-linked items escaping iframe context, if LTI link protection in
  effect, but user needs to authenticate.

1: # The LearningOnline Network 2: # Login Screen 3: # 4: # $Id: lonlogin.pm,v 1.196 2022/05/25 18:05:56 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 qw(:DEFAULT :match); 41: use URI::Escape; 42: use HTML::Entities(); 43: use CGI::Cookie(); 44: 45: sub handler { 46: my $r = shift; 47: 48: &Apache::loncommon::get_unprocessed_cgi 49: (join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'}, 50: $ENV{'REDIRECT_QUERY_STRING'}), 51: ['interface','username','domain','firsturl','localpath','localres', 52: 'token','role','symb','iptoken','btoken','ltoken','ttoken','linkkey', 53: 'saml','sso','retry']); 54: 55: # -- check if they are a migrating user 56: if (defined($env{'form.token'})) { 57: return &Apache::migrateuser::handler($r); 58: } 59: 60: my $lonhost = $r->dir_config('lonHostID'); 61: if ($env{'form.ttoken'}) { 62: my %info = &Apache::lonnet::tmpget($env{'form.ttoken'}); 63: &Apache::lonnet::tmpdel($env{'form.ttoken'}); 64: if ($info{'origurl'}) { 65: $env{'form.firsturl'} = $info{'origurl'}; 66: } 67: if ($info{'ltoken'}) { 68: $env{'form.ltoken'} = $info{'ltoken'}; 69: } elsif ($info{'linkprot'}) { 70: $env{'form.linkprot'} = $info{'linkprot'}; 71: } elsif ($info{'linkkey'} ne '') { 72: $env{'form.linkkey'} = $info{'linkkey'}; 73: } 74: } elsif (($env{'form.sso'}) || ($env{'form.retry'})) { 75: my $infotoken; 76: if ($env{'form.sso'}) { 77: $infotoken = $env{'form.sso'}; 78: } else { 79: $infotoken = $env{'form.retry'}; 80: } 81: my $data = &Apache::lonnet::reply('tmpget:'.$infotoken,$lonhost); 82: unless (($data=~/^error/) || ($data eq 'con_lost') || 83: ($data eq 'no_such_host')) { 84: my %info = &decode_token($data); 85: foreach my $item (keys(%info)) { 86: $env{'form.'.$item} = $info{$item}; 87: } 88: &Apache::lonnet::tmpdel($infotoken); 89: } 90: } else { 91: if (!defined($env{'form.firsturl'})) { 92: &Apache::lonacc::get_posted_cgi($r,['firsturl']); 93: } 94: if (!defined($env{'form.firsturl'})) { 95: if ($ENV{'REDIRECT_URL'} =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$}) { 96: $env{'form.firsturl'} = $ENV{'REDIRECT_URL'}; 97: } 98: } 99: if (($env{'form.firsturl'} =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$}) && 100: (!$env{'form.ltoken'}) && (!$env{'form.linkprot'}) && (!$env{'form.linkkey'})) { 101: &Apache::lonacc::get_posted_cgi($r,['linkkey']); 102: } 103: if ($env{'form.firsturl'} eq '/adm/logout') { 104: delete($env{'form.firsturl'}); 105: } 106: } 107: 108: # For "public user" - remove any exising "public" cookie, as user really wants to log-in 109: my ($handle,$lonidsdir,$expirepub,$userdom); 110: $lonidsdir=$r->dir_config('lonIDsDir'); 111: unless ($r->header_only) { 112: $handle = &Apache::lonnet::check_for_valid_session($r,'lonID',undef,\$userdom); 113: if ($handle ne '') { 114: if ($handle=~/^publicuser\_/) { 115: unlink($r->dir_config('lonIDsDir')."/$handle.id"); 116: undef($handle); 117: undef($userdom); 118: $expirepub = 1; 119: } 120: } 121: } 122: 123: &Apache::loncommon::no_cache($r); 124: &Apache::lonlocal::get_language_handle($r); 125: &Apache::loncommon::content_type($r,'text/html'); 126: if ($expirepub) { 127: my $c = new CGI::Cookie(-name => 'lonPubID', 128: -value => '', 129: -expires => '-10y',); 130: $r->header_out('Set-cookie' => $c); 131: } elsif (($handle eq '') && ($userdom ne '')) { 132: my %cookies=CGI::Cookie->parse($r->header_in('Cookie')); 133: foreach my $name (keys(%cookies)) { 134: next unless ($name =~ /^lon(|S|Link|Pub)ID$/); 135: my $c = new CGI::Cookie(-name => $name, 136: -value => '', 137: -expires => '-10y',); 138: $r->headers_out->add('Set-cookie' => $c); 139: } 140: } 141: $r->send_http_header; 142: return OK if $r->header_only; 143: 144: 145: # Are we re-routing? 146: my $londocroot = $r->dir_config('lonDocRoot'); 147: if (-e "$londocroot/lon-status/reroute.txt") { 148: &Apache::lonauth::reroute($r); 149: return OK; 150: } 151: 152: # Check if browser sent a LON-CAPA load balancer cookie (and this is a balancer) 153: 154: my ($found_server,$balancer_cookie) = &Apache::lonnet::check_for_balancer_cookie($r,1); 155: if ($found_server) { 156: my $hostname = &Apache::lonnet::hostname($found_server); 157: if ($hostname ne '') { 158: my $protocol = $Apache::lonnet::protocol{$found_server}; 159: $protocol = 'http' if ($protocol ne 'https'); 160: my $dest = '/adm/roles'; 161: if ($env{'form.firsturl'} ne '') { 162: $dest = &HTML::Entities::encode($env{'form.firsturl'},'\'"<>&'); 163: } 164: my %info = ( 165: balcookie => $lonhost.':'.$balancer_cookie, 166: ); 167: if ($env{'form.role'}) { 168: $info{'role'} = $env{'form.role'}; 169: } 170: if ($env{'form.symb'}) { 171: $info{'symb'} = $env{'form.symb'}; 172: } 173: my $balancer_token = &Apache::lonnet::tmpput(\%info,$found_server); 174: unless (($balancer_token eq 'con_lost') || ($balancer_token eq 'refused') || 175: ($balancer_token eq 'unknown_cmd') || ($balancer_token eq 'no_such_host')) { 176: $dest .= (($dest=~/\?/)?'&':'?') . 'btoken='.$balancer_token; 177: } 178: if ($env{'form.firsturl'} =~ m{^/tiny/$match_domain/\w+$}) { 179: my %link_info; 180: if ($env{'form.ltoken'}) { 181: $link_info{'ltoken'} = $env{'form.ltoken'}; 182: } elsif ($env{'form.linkprot'}) { 183: $link_info{'linkprot'} = $env{'form.linkprot'}; 184: } elsif ($env{'form.linkkey'} ne '') { 185: $link_info{'linkkey'} = $env{'form.linkkey'}; 186: } 187: if (keys(%link_info)) { 188: $link_info{'origurl'} = $env{'form.firsturl'}; 189: my $token = &Apache::lonnet::tmpput(\%link_info,$found_server,'link'); 190: unless (($token eq 'con_lost') || ($token eq 'refused') || 191: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) { 192: $dest .= (($dest=~/\?/)?'&':'?') . 'ttoken='.$token; 193: } 194: } 195: } 196: unless ($found_server eq $lonhost) { 197: my $alias = &Apache::lonnet::use_proxy_alias($r,$found_server); 198: $hostname = $alias if ($alias ne ''); 199: } 200: my $url = $protocol.'://'.$hostname.$dest; 201: my $start_page = 202: &Apache::loncommon::start_page('Switching Server ...',undef, 203: {'redirect' => [0,$url],}); 204: my $end_page = &Apache::loncommon::end_page(); 205: $r->print($start_page.$end_page); 206: return OK; 207: } 208: } 209: 210: # 211: # Check if a LON-CAPA load balancer sent user here because user's browser sent 212: # it a balancer cookie for an active session on this server. 213: # 214: 215: my $balcookie; 216: if ($env{'form.btoken'}) { 217: my %info = &Apache::lonnet::tmpget($env{'form.btoken'}); 218: $balcookie = $info{'balcookie'}; 219: &Apache::lonnet::tmpdel($env{'form.btoken'}); 220: delete($env{'form.btoken'}); 221: } 222: 223: # 224: # If browser sent an old cookie for which the session file had been removed 225: # check if configuration for user's domain has a portal URL set. If so 226: # switch user's log-in to the portal. 227: # 228: 229: if (($handle eq '') && ($userdom ne '')) { 230: my %domdefaults = &Apache::lonnet::get_domain_defaults($userdom); 231: if ($domdefaults{'portal_def'} =~ /^https?\:/) { 232: my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef, 233: {'redirect' => [0,$domdefaults{'portal_def'}],}); 234: my $end_page = &Apache::loncommon::end_page(); 235: $r->print($start_page.$end_page); 236: return OK; 237: } 238: } 239: 240: # -------------------------------- Prevent users from attempting to login twice 241: if ($handle ne '') { 242: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle); 243: my $start_page = 244: &Apache::loncommon::start_page('Already logged in'); 245: my $end_page = 246: &Apache::loncommon::end_page(); 247: my $dest = '/adm/roles'; 248: if ($env{'form.firsturl'} ne '') { 249: $dest = &HTML::Entities::encode($env{'form.firsturl'},'\'"<>&'); 250: } 251: if (($env{'form.ltoken'}) || ($env{'form.linkprot'})) { 252: my $linkprot; 253: if ($env{'form.ltoken'}) { 254: my %info = &Apache::lonnet::tmpget($env{'form.ltoken'}); 255: $linkprot = $info{'linkprot'}; 256: my $delete = &Apache::lonnet::tmpdel($env{'form.ltoken'}); 257: } else { 258: $linkprot = $env{'form.linkprot'}; 259: } 260: if ($linkprot) { 261: my ($linkprotector,$deeplink) = split(/:/,$linkprot,2); 262: if ($env{'user.linkprotector'}) { 263: my @protectors = split(/,/,$env{'user.linkprotector'}); 264: unless (grep(/^\Q$linkprotector\E$/,@protectors)) { 265: push(@protectors,$linkprotector); 266: @protectors = sort { $a <=> $b } @protectors; 267: &Apache::lonnet::appenv({'user.linkprotector' => join(',',@protectors)}); 268: } 269: } else { 270: &Apache::lonnet::appenv({'user.linkprotector' => $linkprotector }); 271: } 272: if ($env{'user.linkproturi'}) { 273: my @proturis = split(/,/,$env{'user.linkproturi'}); 274: unless (grep(/^\Q$deeplink\E$/,@proturis)) { 275: push(@proturis,$deeplink); 276: @proturis = sort @proturis; 277: &Apache::lonnet::appenv({'user.linkproturi' => join(',',@proturis)}); 278: } 279: } else { 280: &Apache::lonnet::appenv({'user.linkproturi' => $deeplink}); 281: } 282: } 283: } elsif ($env{'form.linkkey'} ne '') { 284: if ($env{'form.firsturl'} =~ m{^/tiny/$match_domain/\w+$}) { 285: my $linkkey = $env{'form.linkkey'}; 286: if ($env{'user.deeplinkkey'}) { 287: my @linkkeys = split(/,/,$env{'user.deeplinkkey'}); 288: unless (grep(/^\Q$linkkey\E$/,@linkkeys)) { 289: push(@linkkeys,$linkkey); 290: &Apache::lonnet::appenv({'user.deeplinkkey' => join(',',sort(@linkkeys))}); 291: } 292: } else { 293: &Apache::lonnet::appenv({'user.deeplinkkey' => $linkkey}); 294: } 295: my $deeplink = $env{'form.firsturl'}; 296: if ($env{'user.keyedlinkuri'}) { 297: my @keyeduris = split(/,/,$env{'user.keyedlinkuri'}); 298: unless (grep(/^\Q$deeplink\E$/,@keyeduris)) { 299: push(@keyeduris,$deeplink); 300: &Apache::lonnet::appenv({'user.keyedlinkuri' => join(',',sort(@keyeduris))}); 301: } 302: } else { 303: &Apache::lonnet::appenv({'user.keyedlinkuri' => $deeplink}); 304: } 305: } 306: } 307: $r->print( 308: $start_page 309: .'<p class="LC_warning">'.&mt('You are already logged in!').'</p>' 310: .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].', 311: '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>' 312: .$end_page 313: ); 314: return OK; 315: } 316: 317: # ---------------------------------------------------- No valid token, continue 318: 319: # ---------------------------- Not possible to really login to domain "public" 320: if ($env{'form.domain'} eq 'public') { 321: $env{'form.domain'}=''; 322: $env{'form.username'}=''; 323: } 324: 325: # ------ Is this page requested because /adm/migrateuser detected an IP change? 326: my %sessiondata; 327: if ($env{'form.iptoken'}) { 328: %sessiondata = &Apache::lonnet::tmpget($env{'form.iptoken'}); 329: unless ($sessiondata{'sessionserver'}) { 330: my $delete = &Apache::lonnet::tmpdel($env{'form.iptoken'}); 331: delete($env{'form.iptoken'}); 332: } 333: } 334: # ----------------------------------------------------------- Process Interface 335: $env{'form.interface'}=~s/\W//g; 336: 337: (undef,undef,undef,undef,undef,undef,my $clientmobile) = 338: &Apache::loncommon::decode_user_agent($r); 339: 340: my $iconpath= 341: &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL')); 342: 343: my $domain = &Apache::lonnet::default_login_domain(); 344: my $defdom = $domain; 345: if ($lonhost ne '') { 346: unless ($sessiondata{'sessionserver'}) { 347: my $redirect = &check_loginvia($domain,$lonhost,$lonidsdir,$balcookie); 348: if ($redirect) { 349: $r->print($redirect); 350: return OK; 351: } 352: } 353: } 354: 355: if (($sessiondata{'domain'}) && 356: (&Apache::lonnet::domain($sessiondata{'domain'},'description'))) { 357: $domain=$sessiondata{'domain'}; 358: } elsif (($env{'form.domain'}) && 359: (&Apache::lonnet::domain($env{'form.domain'},'description'))) { 360: $domain=$env{'form.domain'}; 361: } 362: 363: my $role = $r->dir_config('lonRole'); 364: my $loadlim = $r->dir_config('lonLoadLim'); 365: my $uloadlim= $r->dir_config('lonUserLoadLim'); 366: my $servadm = $r->dir_config('lonAdmEMail'); 367: my $tabdir = $r->dir_config('lonTabDir'); 368: my $include = $r->dir_config('lonIncludes'); 369: my $expire = $r->dir_config('lonExpire'); 370: my $version = $r->dir_config('lonVersion'); 371: my $host_name = &Apache::lonnet::hostname($lonhost); 372: 373: # --------------------------------------------- Default values for login fields 374: 375: my ($authusername,$authdomain); 376: if ($sessiondata{'username'}) { 377: $authusername=$sessiondata{'username'}; 378: } else { 379: $env{'form.username'} = &Apache::loncommon::cleanup_html($env{'form.username'}); 380: $authusername=($env{'form.username'}?$env{'form.username'}:''); 381: } 382: if ($sessiondata{'domain'}) { 383: $authdomain=$sessiondata{'domain'}; 384: } else { 385: $env{'form.domain'} = &Apache::loncommon::cleanup_html($env{'form.domain'}); 386: $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain); 387: } 388: 389: # ---------------------------------------------------------- Determine own load 390: my $loadavg; 391: { 392: my $loadfile=Apache::File->new('/proc/loadavg'); 393: $loadavg=<$loadfile>; 394: } 395: $loadavg =~ s/\s.*//g; 396: 397: my ($loadpercent,$userloadpercent); 398: if ($loadlim) { 399: $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim); 400: } 401: if ($uloadlim) { 402: $userloadpercent=&Apache::lonnet::userload(); 403: } 404: 405: my $firsturl= 406: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'}); 407: 408: # ----------------------------------------------------------- Get announcements 409: my $announcements=&Apache::lonnet::getannounce(); 410: # -------------------------------------------------------- Set login parameters 411: 412: my @hexstr=('0','1','2','3','4','5','6','7', 413: '8','9','a','b','c','d','e','f'); 414: my $lkey=''; 415: for (0..7) { 416: $lkey.=$hexstr[rand(15)]; 417: } 418: 419: my $ukey=''; 420: for (0..7) { 421: $ukey.=$hexstr[rand(15)]; 422: } 423: 424: my $lextkey=hex($lkey); 425: if ($lextkey>2147483647) { $lextkey-=4294967296; } 426: 427: my $uextkey=hex($ukey); 428: if ($uextkey>2147483647) { $uextkey-=4294967296; } 429: 430: # -------------------------------------------------------- Store away log token 431: my ($tokenextras,$tokentype,$linkprot_for_login); 432: my @names = ('role','symb','iptoken','ltoken','linkprot','linkkey'); 433: foreach my $name (@names) { 434: if ($env{'form.'.$name} ne '') { 435: if ($name eq 'ltoken') { 436: my %info = &Apache::lonnet::tmpget($env{'form.'.$name}); 437: if ($info{'linkprot'}) { 438: $linkprot_for_login = $info{'linkprot'}; 439: $tokenextras .= '&linkprot='.&escape($info{'linkprot'}); 440: $tokentype = 'link'; 441: last; 442: } 443: } else { 444: $tokenextras .= '&'.$name.'='.&escape($env{'form.'.$name}); 445: if (($name eq 'linkkey') || ($name eq 'linkprot')) { 446: if (($env{'form.retry'}) && (!$env{'form.ltoken'}) && ($name eq 'linkprot')) { 447: $linkprot_for_login = $env{'form.linkprot'}; 448: } 449: $tokentype = 'link'; 450: } 451: } 452: } 453: } 454: if ($tokentype) { 455: $tokenextras .= ":$tokentype"; 456: } 457: my $logtoken=Apache::lonnet::reply( 458: 'tmpput:'.$ukey.$lkey.'&'.&escape($firsturl).$tokenextras, 459: $lonhost); 460: 461: # -- If we cannot talk to ourselves, or hostID does not map to a hostname 462: # we are in serious trouble 463: 464: if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) { 465: if ($logtoken eq 'no_such_host') { 466: &Apache::lonnet::logthis('No valid logtoken for log-in page -- unable to determine hostname for hostID: '.$lonhost.'. Check entry in hosts.tab'); 467: } 468: if ($env{'form.ltoken'}) { 469: &Apache::lonnet::tmpdel($env{'form.ltoken'}); 470: delete($env{'form.ltoken'}); 471: } 472: my $spares=''; 473: my (@sparehosts,%spareservers); 474: my $sparesref = &Apache::lonnet::this_host_spares($defdom); 475: if (ref($sparesref) eq 'HASH') { 476: foreach my $key (keys(%{$sparesref})) { 477: if (ref($sparesref->{$key}) eq 'ARRAY') { 478: my @sorted = sort { &Apache::lonnet::hostname($a) cmp 479: &Apache::lonnet::hostname($b); 480: } @{$sparesref->{$key}}; 481: if (@sorted) { 482: if ($key eq 'primary') { 483: unshift(@sparehosts,@sorted); 484: } elsif ($key eq 'default') { 485: push(@sparehosts,@sorted); 486: } 487: } 488: } 489: } 490: } 491: foreach my $hostid (@sparehosts) { 492: next if ($hostid eq $lonhost); 493: my $hostname = &Apache::lonnet::hostname($hostid); 494: next if (($hostname eq '') || ($spareservers{$hostname})); 495: $spareservers{$hostname} = 1; 496: my $protocol = $Apache::lonnet::protocol{$hostid}; 497: $protocol = 'http' if ($protocol ne 'https'); 498: $spares.='<br /><span style="font-size: larger;"><a href="'.$protocol.'://'. 499: $hostname. 500: '/adm/login?domain='.$authdomain.'">'. 501: $hostname.'</a>'. 502: ' '.&mt('(preferred)').'</span>'.$/; 503: } 504: if ($spares) { 505: $spares.= '<br />'; 506: } 507: my %all_hostnames = &Apache::lonnet::all_hostnames(); 508: foreach my $hostid (sort 509: { 510: &Apache::lonnet::hostname($a) cmp 511: &Apache::lonnet::hostname($b); 512: } 513: keys(%all_hostnames)) { 514: next if ($hostid eq $lonhost); 515: my $hostname = &Apache::lonnet::hostname($hostid); 516: next if (($hostname eq '') || ($spareservers{$hostname})); 517: $spareservers{$hostname} = 1; 518: my $protocol = $Apache::lonnet::protocol{$hostid}; 519: $protocol = 'http' if ($protocol ne 'https'); 520: $spares.='<br /><a href="'.$protocol.'://'. 521: $hostname. 522: '/adm/login?domain='.$authdomain.'">'. 523: $hostname.'</a>'; 524: } 525: $r->print( 526: '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">' 527: .'<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">' 528: .'<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>' 529: .&mt('The LearningOnline Network with CAPA') 530: .'</title></head>' 531: .'<body bgcolor="#FFFFFF">' 532: .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>' 533: .'<img src="/adm/lonKaputt/lonlogo_broken.gif" alt="broken icon" align="right" />' 534: .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>'); 535: if ($spares) { 536: $r->print('<p>'.&mt('Please attempt to login to one of the following servers:') 537: .'</p>' 538: .$spares); 539: } 540: $r->print('</body>' 541: .'</html>' 542: ); 543: return OK; 544: } 545: 546: # ----------------------------------------------- Apparently we are in business 547: $servadm=~s/\,/\<br \/\>/g; 548: 549: # ----------------------------------------------------------- Front page design 550: my $pgbg=&Apache::loncommon::designparm('login.pgbg',$domain); 551: my $font=&Apache::loncommon::designparm('login.font',$domain); 552: my $link=&Apache::loncommon::designparm('login.link',$domain); 553: my $vlink=&Apache::loncommon::designparm('login.vlink',$domain); 554: my $alink=&Apache::loncommon::designparm('login.alink',$domain); 555: my $mainbg=&Apache::loncommon::designparm('login.mainbg',$domain); 556: my $loginbox_bg=&Apache::loncommon::designparm('login.sidebg',$domain); 557: my $loginbox_header_bgcol=&Apache::loncommon::designparm('login.bgcol',$domain); 558: my $loginbox_header_textcol=&Apache::loncommon::designparm('login.textcol',$domain); 559: my $logo=&Apache::loncommon::designparm('login.logo',$domain); 560: my $img=&Apache::loncommon::designparm('login.img',$domain); 561: my $domainlogo=&Apache::loncommon::domainlogo($domain); 562: my $showbanner = 1; 563: my $showmainlogo = 1; 564: if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) { 565: $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain); 566: } 567: if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) { 568: $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain); 569: } 570: my $showadminmail; 571: my @possdoms = &Apache::lonnet::current_machine_domains(); 572: if (grep(/^\Q$domain\E$/,@possdoms)) { 573: $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain); 574: } 575: my $showcoursecat = 576: &Apache::loncommon::designparm('login.coursecatalog',$domain); 577: my $shownewuserlink = 578: &Apache::loncommon::designparm('login.newuser',$domain); 579: my $showhelpdesk = 580: &Apache::loncommon::designparm('login.helpdesk',$domain); 581: my $now=time; 582: my $js = (<<ENDSCRIPT); 583: 584: <script type="text/javascript" language="JavaScript"> 585: // <![CDATA[ 586: function send() 587: { 588: this.document.server.elements.uname.value 589: =this.document.client.elements.uname.value; 590: 591: this.document.server.elements.udom.value 592: =this.document.client.elements.udom.value; 593: 594: uextkey=this.document.client.elements.uextkey.value; 595: lextkey=this.document.client.elements.lextkey.value; 596: initkeys(); 597: 598: if(this.document.server.action.substr(0,5) === 'http:'){ 599: this.document.server.elements.upass0.value 600: =getCrypted(this.document.client.elements.upass$now.value); 601: } else { 602: this.document.server.elements.upass0.value 603: =this.document.client.elements.upass$now.value; 604: } 605: 606: this.document.client.elements.uname.value=''; 607: this.document.client.elements.upass$now.value=''; 608: 609: this.document.server.submit(); 610: return false; 611: } 612: 613: function enableInput() { 614: this.document.client.elements.upass$now.removeAttribute("readOnly"); 615: this.document.client.elements.uname.removeAttribute("readOnly"); 616: this.document.client.elements.udom.removeAttribute("readOnly"); 617: return; 618: } 619: 620: // ]]> 621: </script> 622: 623: ENDSCRIPT 624: 625: my ($lonhost_in_use,@hosts,%defaultdomconf,$saml_prefix,$saml_landing, 626: $samlssotext,$samlnonsso,$samlssoimg,$samlssoalt,$samlssourl,$samltooltip); 627: %defaultdomconf = &Apache::loncommon::get_domainconf($defdom); 628: @hosts = &Apache::lonnet::current_machine_ids(); 629: $lonhost_in_use = $lonhost; 630: if (@hosts > 1) { 631: foreach my $hostid (@hosts) { 632: if (&Apache::lonnet::host_domain($hostid) eq $defdom) { 633: $lonhost_in_use = $hostid; 634: last; 635: } 636: } 637: } 638: $saml_prefix = $defdom.'.login.saml_'; 639: if ($defaultdomconf{$saml_prefix.$lonhost_in_use}) { 640: $saml_landing = 1; 641: $samlssotext = $defaultdomconf{$saml_prefix.'text_'.$lonhost_in_use}; 642: $samlnonsso = $defaultdomconf{$saml_prefix.'notsso_'.$lonhost_in_use}; 643: $samlssoimg = $defaultdomconf{$saml_prefix.'img_'.$lonhost_in_use}; 644: $samlssoalt = $defaultdomconf{$saml_prefix.'alt_'.$lonhost_in_use}; 645: $samlssourl = $defaultdomconf{$saml_prefix.'url_'.$lonhost_in_use}; 646: $samltooltip = $defaultdomconf{$saml_prefix.'title_'.$lonhost_in_use}; 647: } 648: if ($saml_landing) { 649: if ($samlssotext eq '') { 650: $samlssotext = 'SSO Login'; 651: } 652: if ($samlnonsso eq '') { 653: $samlnonsso = 'Non-SSO Login'; 654: } 655: $js .= <<"ENDSAMLJS"; 656: 657: <script type="text/javascript"> 658: // <![CDATA[ 659: function toggleLClogin() { 660: if (document.getElementById('LC_standard_login')) { 661: if (document.getElementById('LC_standard_login').style.display == 'none') { 662: document.getElementById('LC_standard_login').style.display = 'inline-block'; 663: if (document.getElementById('LC_login_text')) { 664: document.getElementById('LC_login_text').innerHTML = '$samlnonsso'; 665: } 666: if ( document.client.uname ) { document.client.uname.focus(); } 667: if (document.getElementById('LC_SSO_login')) { 668: document.getElementById('LC_SSO_login').style.display = 'none'; 669: } 670: } else { 671: document.getElementById('LC_standard_login').style.display = 'none'; 672: if (document.getElementById('LC_login_text')) { 673: document.getElementById('LC_login_text').innerHTML = '$samlssotext'; 674: } 675: if (document.getElementById('LC_SSO_login')) { 676: document.getElementById('LC_SSO_login').style.display = 'inline-block'; 677: } 678: } 679: } 680: return; 681: } 682: 683: // ]]> 684: </script> 685: 686: ENDSAMLJS 687: } 688: 689: # --------------------------------------------------- Print login screen header 690: 691: my %add_entries = ( 692: bgcolor => "$mainbg", 693: text => "$font", 694: link => "$link", 695: vlink => "$vlink", 696: alink => "$alink", 697: onload => 'javascript:enableInput();',); 698: 699: my ($headextra,$headextra_exempt); 700: $headextra = $defaultdomconf{$defdom.'.login.headtag_'.$lonhost_in_use}; 701: $headextra_exempt = $defaultdomconf{$domain.'.login.headtag_exempt_'.$lonhost_in_use}; 702: if ($headextra) { 703: my $omitextra; 704: if ($headextra_exempt ne '') { 705: my @exempt = split(',',$headextra_exempt); 706: my $ip = &Apache::lonnet::get_requestor_ip(); 707: if (grep(/^\Q$ip\E$/,@exempt)) { 708: $omitextra = 1; 709: } 710: } 711: unless ($omitextra) { 712: my $confname = $defdom.'-domainconfig'; 713: if ($headextra =~ m{^\Q/res/$defdom/$confname/login/headtag/$lonhost_in_use/\E}) { 714: my $extra = &Apache::lonnet::getfile(&Apache::lonnet::filelocation("",$headextra)); 715: unless ($extra eq '-1') { 716: $js .= "\n".$extra."\n"; 717: } 718: } 719: } 720: } 721: 722: $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js, 723: { 'redirect' => [$expire,'/adm/roles'], 724: 'add_entries' => \%add_entries, 725: 'only_body' => 1,})); 726: 727: # ----------------------------------------------------------------------- Texts 728: 729: my %lt=&Apache::lonlocal::texthash( 730: 'un' => 'Username', 731: 'pw' => 'Password', 732: 'dom' => 'Domain', 733: 'perc' => 'percent', 734: 'load' => 'Server Load', 735: 'userload' => 'User Load', 736: 'catalog' => 'Course/Community Catalog', 737: 'log' => 'Log in', 738: 'help' => 'Log-in Help', 739: 'serv' => 'Server', 740: 'servadm' => 'Server Administration', 741: 'helpdesk' => 'Contact Helpdesk', 742: 'forgotpw' => 'Forgot password?', 743: 'newuser' => 'New User?', 744: 'change' => 'Change?', 745: ); 746: # -------------------------------------------------- Change password field name 747: 748: my $forgotpw = &forgotpwdisplay(%lt); 749: $forgotpw .= '<br />' if $forgotpw; 750: my $loginhelp = &Apache::lonauth::loginhelpdisplay($authdomain); 751: if ($loginhelp) { 752: $loginhelp = '<a href="'.$loginhelp.'">'.$lt{'help'}.'</a><br />'; 753: } 754: 755: # ---------------------------------------------------- Serve out DES JavaScript 756: { 757: my $jsh=Apache::File->new($include."/londes.js"); 758: $r->print(<$jsh>); 759: } 760: # ---------------------------------------------------------- Serve rest of page 761: 762: $r->print( 763: '<div class="LC_Box"' 764: .' style="margin:0 auto; padding:10px; width:90%; height: auto; background-color:#FFFFFF;">' 765: ); 766: 767: $r->print(<<ENDSERVERFORM); 768: <form name="server" action="/adm/authenticate" method="post" target="_top"> 769: <input type="hidden" name="logtoken" value="$logtoken" /> 770: <input type="hidden" name="serverid" value="$lonhost" /> 771: <input type="hidden" name="uname" value="" /> 772: <input type="hidden" name="upass0" value="" /> 773: <input type="hidden" name="udom" value="" /> 774: <input type="hidden" name="localpath" value="$env{'form.localpath'}" /> 775: <input type="hidden" name="localres" value="$env{'form.localres'}" /> 776: </form> 777: ENDSERVERFORM 778: my $coursecatalog; 779: if (($showcoursecat eq '') || ($showcoursecat)) { 780: $coursecatalog = &coursecatalog_link($lt{'catalog'}).'<br />'; 781: } 782: my $newuserlink; 783: if ($shownewuserlink) { 784: $newuserlink = &newuser_link($lt{'newuser'}).'<br />'; 785: } 786: my $logintitle = 787: '<h2 class="LC_hcell"' 788: .' style="background:'.$loginbox_header_bgcol.';' 789: .' color:'.$loginbox_header_textcol.'">' 790: .$lt{'log'} 791: .'</h2>'; 792: 793: my $noscript_warning='<noscript><span class="LC_warning"><b>' 794: .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.') 795: .'</b></span></noscript>'; 796: my $helpdeskscript; 797: my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail, 798: $authdomain,\$helpdeskscript, 799: $showhelpdesk,\@possdoms); 800: 801: my $mobileargs; 802: if ($clientmobile) { 803: $mobileargs = 'autocapitalize="off" autocorrect="off"'; 804: } 805: my $loginform=(<<LFORM); 806: <form name="client" action="" onsubmit="return(send())" id="lclogin"> 807: <input type="hidden" name="lextkey" value="$lextkey" /> 808: <input type="hidden" name="uextkey" value="$uextkey" /> 809: <b><label for="uname">$lt{'un'}</label>:</b><br /> 810: <input type="text" name="uname" id="uname" size="15" value="$authusername" readonly="readonly" $mobileargs /><br /> 811: <b><label for="upass$now">$lt{'pw'}</label>:</b><br /> 812: <input type="password" name="upass$now" id="upass$now" size="15" readonly="readonly" /><br /> 813: <b><label for="udom">$lt{'dom'}</label>:</b><br /> 814: <input type="text" name="udom" id="udom" size="15" value="$authdomain" readonly="readonly" $mobileargs /><br /> 815: <input type="submit" value="$lt{'log'}" /> 816: </form> 817: LFORM 818: 819: if ($showbanner) { 820: my $alttext = &Apache::loncommon::designparm('login.alttext_img',$domain); 821: if ($alttext eq '') { 822: $alttext = 'The Learning Online Network with CAPA'; 823: } 824: $r->print(<<HEADER); 825:  826: <div style="background:$pgbg;margin:0;width:100%;"> 827: <img src="$img" border="0" alt="$alttext" class="LC_maxwidth" id="lcloginbanner" /> 828: </div> 829: HEADER 830: } 831: 832: my $stdauthformstyle = 'inline-block'; 833: my $ssoauthstyle = 'none'; 834: my $logintype; 835: $r->print('<div style="float:left;margin-top:0;">'); 836: if ($saml_landing) { 837: $ssoauthstyle = 'inline-block'; 838: $stdauthformstyle = 'none'; 839: $logintype = $samlssotext; 840: my $ssologin = '/adm/sso'; 841: if ($samlssourl ne '') { 842: $ssologin = $samlssourl; 843: } 844: if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) { 845: my $querystring; 846: if ($env{'form.firsturl'} ne '') { 847: $querystring = 'origurl='; 848: if ($env{'form.firsturl'} =~ /[^\x00-\xFF]/) { 849: $querystring .= &uri_escape_utf8($env{'form.firsturl'}); 850: } else { 851: $querystring .= &uri_escape($env{'form.firsturl'}); 852: } 853: $querystring = &HTML::Entities::encode($querystring,"'"); 854: } 855: if ($env{'form.ltoken'} ne '') { 856: $querystring .= (($querystring eq '')?'':'&') . 'ltoken='. 857: &HTML::Entities::encode(&uri_escape($env{'form.ltoken'})); 858: } elsif ($env{'form.linkkey'}) { 859: $querystring .= (($querystring eq '')?'':'&') . 'linkkey='. 860: &HTML::Entities::encode(&uri_escape($env{'form.linkkey'})); 861: } 862: if ($querystring ne '') { 863: $ssologin .= (($ssologin=~/\?/)?'&':'?') . $querystring; 864: } 865: } elsif ($logtoken ne '') { 866: $ssologin .= (($ssologin=~/\?/)?'&':'?') . 'logtoken='.$logtoken; 867: } 868: my $ssohref; 869: if ($samlssoimg ne '') { 870: $ssohref = '<a href="'.$ssologin.'" title="'.$samltooltip.'">'. 871: '<img src="'.$samlssoimg.'" alt="'.$samlssoalt.'" id="lcssobutton" /></a>'; 872: } else { 873: $ssohref = '<a href="'.$ssologin.'">'.$samlssotext.'</a>'; 874: } 875: if (($env{'form.saml'} eq 'no') || 876: (($env{'form.username'} ne '') && ($env{'form.domain'} ne ''))) { 877: $ssoauthstyle = 'none'; 878: $stdauthformstyle = 'inline-block'; 879: $logintype = $samlnonsso; 880: } 881: $r->print(<<ENDSAML); 882: <p> 883: Log-in type: 884: <span style="font-weight:bold" id="LC_login_text">$logintype</span><br /> 885: <span><a href="javascript:toggleLClogin();" style="color:#000000">$lt{'change'}</a></span> 886: </p> 887: <div style="display:$ssoauthstyle" id="LC_SSO_login"> 888: <div class="LC_Box" style="padding-top: 10px;"> 889: $ssohref 890: $noscript_warning 891: </div> 892: <div class="LC_Box" style="padding-top: 10px;"> 893: $loginhelp 894: $contactblock 895: $coursecatalog 896: </div> 897: </div> 898: ENDSAML 899: } else { 900: if ($env{'form.ltoken'}) { 901: &Apache::lonnet::tmpdel($env{'form.ltoken'}); 902: delete($env{'form.ltoken'}); 903: } 904: } 905: my $in_frame_js; 906: if ($linkprot_for_login) { 907: my ($linkprotector,$linkproturi) = split(/:/,$linkprot_for_login,2); 908: if (($linkprotector =~ /^\d+(c|d)$/) && ($linkproturi =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$})) { 909: my $set_target; 910: if ($env{'form.retry'}) { 911: if ($linkproturi eq $env{'form.firsturl'}) { 912: $set_target = " document.server.target = '_self';"; 913: } 914: } else { 915: $set_target = <<ENDTARG; 916: var linkproturi = '$linkproturi'; 917: var path = document.location.pathname.replace( new RegExp('^/adm/launch'),''); 918: if (linkproturi == path) { 919: document.server.target = '_self'; 920: } 921: ENDTARG 922: } 923: $in_frame_js = <<ENDJS; 924: <script type="text/javascript"> 925: // <![CDATA[ 926: if ((window.self !== window.top) && (document.server.target != '_self')) { 927: $set_target 928: } 929: // ]]> 930: </script> 931: ENDJS 932: } 933: } 934: 935: $r->print(<<ENDLOGIN); 936: <div style="display:$stdauthformstyle;" id="LC_standard_login"> 937: <div class="LC_Box" style="background:$loginbox_bg;"> 938: $logintitle 939: $loginform 940: $noscript_warning 941: </div> 942: 943: <div class="LC_Box" style="padding-top: 10px;"> 944: $loginhelp 945: $forgotpw 946: $contactblock 947: $newuserlink 948: $coursecatalog 949: </div> 950: </div> 951: 952: ENDLOGIN 953: $r->print('</div><div>'."\n"); 954: if ($showmainlogo) { 955: my $alttext = &Apache::loncommon::designparm('login.alttext_logo',$domain); 956: $r->print(' <img src="'.$logo.'" alt="'.$alttext.'" class="LC_maxwidth" id="lcloginmainlogo" />'."\n"); 957: } 958: $r->print(<<ENDTOP); 959: $announcements 960: </div> 961: <hr style="clear:both;" /> 962: ENDTOP 963: my ($domainrow,$serverrow,$loadrow,$userloadrow,$versionrow); 964: $domainrow = <<"END"; 965: <tr> 966: <td align="left" valign="top"> 967: <small><b>$lt{'dom'}: </b></small> 968: </td> 969: <td align="left" valign="top"> 970: <small><tt> $domain</tt></small> 971: </td> 972: </tr> 973: END 974: $serverrow = <<"END"; 975: <tr> 976: <td align="left" valign="top"> 977: <small><b>$lt{'serv'}: </b></small> 978: </td> 979: <td align="left" valign="top"> 980: <small><tt> $lonhost ($role)</tt></small> 981: </td> 982: </tr> 983: END 984: if ($loadlim) { 985: $loadrow = <<"END"; 986: <tr> 987: <td align="left" valign="top"> 988: <small><b>$lt{'load'}: </b></small> 989: </td> 990: <td align="left" valign="top"> 991: <small><tt> $loadpercent $lt{'perc'}</tt></small> 992: </td> 993: </tr> 994: END 995: } 996: if ($uloadlim) { 997: $userloadrow = <<"END"; 998: <tr> 999: <td align="left" valign="top"> 1000: <small><b>$lt{'userload'}: </b></small> 1001: </td> 1002: <td align="left" valign="top"> 1003: <small><tt> $userloadpercent $lt{'perc'}</tt></small> 1004: </td> 1005: </tr> 1006: END 1007: } 1008: if (($version ne '') && ($version ne '')) { 1009: $versionrow = <<"END"; 1010: <tr> 1011: <td colspan="2" align="left"> 1012: <small>$version</small> 1013: </td> 1014: </tr> 1015: END 1016: } 1017: 1018: $r->print(<<ENDDOCUMENT); 1019: <div style="float: left;"> 1020: <table border="0" cellspacing="0" cellpadding="0"> 1021: $domainrow 1022: $serverrow 1023: $loadrow 1024: $userloadrow 1025: $versionrow 1026: </table> 1027: </div> 1028: <div style="float: right;"> 1029: $domainlogo 1030: </div> 1031: <br style="clear:both;" /> 1032: </div> 1033: 1034: <script type="text/javascript"> 1035: // <![CDATA[ 1036: // the if prevents the script error if the browser can not handle this 1037: if ( document.client.uname ) { document.client.uname.focus(); } 1038: // ]]> 1039: </script> 1040: $helpdeskscript 1041: 1042: ENDDOCUMENT 1043: my %endargs = ( 'noredirectlink' => 1, ); 1044: $r->print(&Apache::loncommon::end_page(\%endargs)); 1045: return OK; 1046: } 1047: 1048: sub check_loginvia { 1049: my ($domain,$lonhost,$lonidsdir,$balcookie) = @_; 1050: if ($domain eq '' || $lonhost eq '' || $lonidsdir eq '') { 1051: return; 1052: } 1053: my %domconfhash = &Apache::loncommon::get_domainconf($domain); 1054: my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost}; 1055: my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost}; 1056: my $output; 1057: if ($loginvia ne '') { 1058: my $noredirect; 1059: my $ip = &Apache::lonnet::get_requestor_ip(); 1060: if ($ip eq '127.0.0.1') { 1061: $noredirect = 1; 1062: } else { 1063: if ($loginvia_exempt ne '') { 1064: my @exempt = split(',',$loginvia_exempt); 1065: if (grep(/^\Q$ip\E$/,@exempt)) { 1066: $noredirect = 1; 1067: } 1068: } 1069: } 1070: unless ($noredirect) { 1071: my ($newhost,$path); 1072: if ($loginvia =~ /:/) { 1073: ($newhost,$path) = split(':',$loginvia); 1074: } else { 1075: $newhost = $loginvia; 1076: } 1077: if ($newhost ne $lonhost) { 1078: if (&Apache::lonnet::hostname($newhost) ne '') { 1079: if ($balcookie) { 1080: my ($balancer,$cookie) = split(/:/,$balcookie); 1081: if ($cookie =~ /^($match_domain)_($match_username)_([a-f0-9]+)$/) { 1082: my ($udom,$uname,$cookieid) = ($1,$2,$3); 1083: unless (&Apache::lonnet::delbalcookie($cookie,$balancer) eq 'ok') { 1084: if ((-d $lonidsdir) && (opendir(my $dh,$lonidsdir))) { 1085: while (my $filename=readdir($dh)) { 1086: if ($filename=~/^(\Q$uname\E_\d+_\Q$udom\E_$match_lonid)\.id$/) { 1087: my $handle = $1; 1088: my %hash = 1089: &Apache::lonnet::get_sessionfile_vars($handle,$lonidsdir, 1090: ['request.balancercookie', 1091: 'user.linkedenv']); 1092: if ($hash{'request.balancercookie'} eq "$balancer:$cookieid") { 1093: if (unlink("$lonidsdir/$filename")) { 1094: if (($hash{'user.linkedenv'} =~ /^[a-f0-9]+_linked$/) && 1095: (-l "$lonidsdir/$hash{'user.linkedenv'}.id") && 1096: (readlink("$lonidsdir/$hash{'user.linkedenv'}.id") eq "$lonidsdir/$filename")) { 1097: unlink("$lonidsdir/$hash{'user.linkedenv'}.id"); 1098: } 1099: } 1100: } 1101: last; 1102: } 1103: } 1104: closedir($dh); 1105: } 1106: } 1107: } 1108: } 1109: $output = &redirect_page($newhost,$path); 1110: } 1111: } 1112: } 1113: } 1114: return $output; 1115: } 1116: 1117: sub redirect_page { 1118: my ($desthost,$path) = @_; 1119: my $hostname = &Apache::lonnet::hostname($desthost); 1120: my $protocol = $Apache::lonnet::protocol{$desthost}; 1121: $protocol = 'http' if ($protocol ne 'https'); 1122: unless ($path =~ m{^/}) { 1123: $path = '/'.$path; 1124: } 1125: my $url = $protocol.'://'.$hostname.$path; 1126: if ($env{'form.firsturl'} ne '') { 1127: my $querystring; 1128: if ($env{'form.firsturl'} =~ /[^\x00-\xFF]/) { 1129: $querystring = &uri_escape_utf8($env{'form.firsturl'}); 1130: } else { 1131: $querystring = &uri_escape($env{'form.firsturl'}); 1132: } 1133: $querystring = &HTML::Entities::encode($querystring,"'"); 1134: $url .='?firsturl='.$querystring; 1135: } 1136: if (($env{'form.ltoken'}) || ($env{'form.linkkey'} ne '')) { 1137: my %link_info; 1138: if ($env{'form.ltoken'}) { 1139: $link_info{'ltoken'} = $env{'form.ltoken'}; 1140: } elsif ($env{'form.linkkey'} ne '') { 1141: $link_info{'linkkey'} = $env{'form.linkkey'}; 1142: } 1143: my $token = &Apache::lonnet::tmpput(\%link_info,$desthost,'link'); 1144: unless (($token eq 'con_lost') || ($token eq 'refused') || 1145: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) { 1146: $url .= (($url=~/\?/)?'&':'?') . 'ttoken='.$token; 1147: } 1148: } 1149: my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef, 1150: {'redirect' => [0,$url],}); 1151: my $end_page = &Apache::loncommon::end_page(); 1152: return $start_page.$end_page; 1153: } 1154: 1155: sub contactdisplay { 1156: my ($lt,$servadm,$showadminmail,$authdomain,$helpdeskscript,$showhelpdesk, 1157: $possdoms) = @_; 1158: my $contactblock; 1159: my $origmail; 1160: if (ref($possdoms) eq 'ARRAY') { 1161: if (grep(/^\Q$authdomain\E$/,@{$possdoms})) { 1162: $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'}; 1163: } 1164: } 1165: my $requestmail = 1166: &Apache::loncommon::build_recipient_list(undef,'helpdeskmail', 1167: $authdomain,$origmail); 1168: unless ($showhelpdesk eq '0') { 1169: if ($requestmail =~ m/[^\@]+\@[^\@]+/) { 1170: $showhelpdesk = 1; 1171: } else { 1172: $showhelpdesk = 0; 1173: } 1174: } 1175: if ($servadm && $showadminmail) { 1176: $contactblock .= $$lt{'servadm'}.':<br />'. 1177: '<tt>'.$servadm.'</tt><br />'; 1178: } 1179: if ($showhelpdesk) { 1180: $contactblock .= '<a href="javascript:helpdesk()">'.$lt->{'helpdesk'}.'</a><br />'; 1181: my $thisurl = &escape('/adm/login'); 1182: $$helpdeskscript = <<"ENDSCRIPT"; 1183: <script type="text/javascript"> 1184: // <![CDATA[ 1185: function helpdesk() { 1186: var possdom = document.client.udom.value; 1187: var codedom = possdom.replace( new RegExp("[^A-Za-z0-9.\\-]","g"),''); 1188: if (codedom == '') { 1189: codedom = "$authdomain"; 1190: } 1191: var querystr = "origurl=$thisurl&codedom="+codedom; 1192: document.location.href = "/adm/helpdesk?"+querystr; 1193: return; 1194: } 1195: // ]]> 1196: </script> 1197: ENDSCRIPT 1198: } 1199: return $contactblock; 1200: } 1201: 1202: sub forgotpwdisplay { 1203: my (%lt) = @_; 1204: my $prompt_for_resetpw = 1; 1205: if ($prompt_for_resetpw) { 1206: return '<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a>'; 1207: } 1208: return; 1209: } 1210: 1211: sub coursecatalog_link { 1212: my ($linkname) = @_; 1213: return <<"END"; 1214: <a href="/adm/coursecatalog">$linkname</a> 1215: END 1216: } 1217: 1218: sub newuser_link { 1219: my ($linkname) = @_; 1220: return '<a href="/adm/createaccount">'.$linkname.'</a>'; 1221: } 1222: 1223: sub decode_token { 1224: my ($info) = @_; 1225: my ($firsturl,@rest)=split(/\&/,$info); 1226: my %form; 1227: if ($firsturl ne '') { 1228: $form{'firsturl'} = &unescape($firsturl); 1229: } 1230: foreach my $item (@rest) { 1231: my ($key,$value) = split(/=/,$item); 1232: $form{$key} = &unescape($value); 1233: } 1234: return %form; 1235: } 1236: 1237: 1; 1238: __END__