loncom/auth/lonlogin.pm - view

File: [LON-CAPA] / loncom / auth / lonlogin.pm
Revision 1.199: download - view: text, annotated - select for diffs
Sat Jun 18 02:10:18 2022 UTC (23 months, 2 weeks ago) by raeburn
Branches: MAIN
CVS tags: HEAD

- Bug 6907
  For LTI-protected deep links in which username is included in launch payload
  compare username in payload with username for any existing LON-CAPA session
  in current web browser and expire old session, if different user.

1: # The LearningOnline Network 2: # Login Screen 3: # 4: # $Id: lonlogin.pm,v 1.199 2022/06/18 02:10:18 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'} = $info{'linkprot'}; 71: if ($info{'linkprotuser'} ne '') { 72: $env{'form.linkprotuser'} = $info{'linkprotuser'}; 73: } 74: } elsif ($info{'linkkey'} ne '') { 75: $env{'form.linkkey'} = $info{'linkkey'}; 76: } 77: } elsif (($env{'form.sso'}) || ($env{'form.retry'})) { 78: my $infotoken; 79: if ($env{'form.sso'}) { 80: $infotoken = $env{'form.sso'}; 81: } else { 82: $infotoken = $env{'form.retry'}; 83: } 84: my $data = &Apache::lonnet::reply('tmpget:'.$infotoken,$lonhost); 85: unless (($data=~/^error/) || ($data eq 'con_lost') || 86: ($data eq 'no_such_host')) { 87: my %info = &decode_token($data); 88: foreach my $item (keys(%info)) { 89: $env{'form.'.$item} = $info{$item}; 90: } 91: &Apache::lonnet::tmpdel($infotoken); 92: } 93: } else { 94: if (!defined($env{'form.firsturl'})) { 95: &Apache::lonacc::get_posted_cgi($r,['firsturl']); 96: } 97: if (!defined($env{'form.firsturl'})) { 98: if ($ENV{'REDIRECT_URL'} =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$}) { 99: $env{'form.firsturl'} = $ENV{'REDIRECT_URL'}; 100: } 101: } 102: if (($env{'form.firsturl'} =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$}) && 103: (!$env{'form.ltoken'}) && (!$env{'form.linkprot'}) && (!$env{'form.linkkey'})) { 104: &Apache::lonacc::get_posted_cgi($r,['linkkey']); 105: } 106: if ($env{'form.firsturl'} eq '/adm/logout') { 107: delete($env{'form.firsturl'}); 108: } 109: } 110: 111: # For "public user" - remove any exising "public" cookie, as user really wants to log-in 112: my ($handle,$lonidsdir,$expirepub,$userdom); 113: $lonidsdir=$r->dir_config('lonIDsDir'); 114: unless ($r->header_only) { 115: $handle = &Apache::lonnet::check_for_valid_session($r,'lonID',undef,\$userdom); 116: if ($handle ne '') { 117: if ($handle=~/^publicuser\_/) { 118: unlink($r->dir_config('lonIDsDir')."/$handle.id"); 119: undef($handle); 120: undef($userdom); 121: $expirepub = 1; 122: } 123: } 124: } 125: 126: &Apache::loncommon::no_cache($r); 127: &Apache::lonlocal::get_language_handle($r); 128: &Apache::loncommon::content_type($r,'text/html'); 129: if ($expirepub) { 130: my $c = new CGI::Cookie(-name => 'lonPubID', 131: -value => '', 132: -expires => '-10y',); 133: $r->header_out('Set-cookie' => $c); 134: } elsif (($handle eq '') && ($userdom ne '')) { 135: my %cookies=CGI::Cookie->parse($r->header_in('Cookie')); 136: foreach my $name (keys(%cookies)) { 137: next unless ($name =~ /^lon(|S|Link|Pub)ID$/); 138: my $c = new CGI::Cookie(-name => $name, 139: -value => '', 140: -expires => '-10y',); 141: $r->headers_out->add('Set-cookie' => $c); 142: } 143: } 144: $r->send_http_header; 145: return OK if $r->header_only; 146: 147: 148: # Are we re-routing? 149: my $londocroot = $r->dir_config('lonDocRoot'); 150: if (-e "$londocroot/lon-status/reroute.txt") { 151: &Apache::lonauth::reroute($r); 152: return OK; 153: } 154: 155: # Check if browser sent a LON-CAPA load balancer cookie (and this is a balancer) 156: 157: my ($found_server,$balancer_cookie) = &Apache::lonnet::check_for_balancer_cookie($r,1); 158: if ($found_server) { 159: my $hostname = &Apache::lonnet::hostname($found_server); 160: if ($hostname ne '') { 161: my $protocol = $Apache::lonnet::protocol{$found_server}; 162: $protocol = 'http' if ($protocol ne 'https'); 163: my $dest = '/adm/roles'; 164: if ($env{'form.firsturl'} ne '') { 165: $dest = &HTML::Entities::encode($env{'form.firsturl'},'\'"<>&'); 166: } 167: my %info = ( 168: balcookie => $lonhost.':'.$balancer_cookie, 169: ); 170: if ($env{'form.role'}) { 171: $info{'role'} = $env{'form.role'}; 172: } 173: if ($env{'form.symb'}) { 174: $info{'symb'} = $env{'form.symb'}; 175: } 176: my $balancer_token = &Apache::lonnet::tmpput(\%info,$found_server); 177: unless (($balancer_token eq 'con_lost') || ($balancer_token eq 'refused') || 178: ($balancer_token eq 'unknown_cmd') || ($balancer_token eq 'no_such_host')) { 179: $dest .= (($dest=~/\?/)?'&':'?') . 'btoken='.$balancer_token; 180: } 181: if ($env{'form.firsturl'} =~ m{^/tiny/$match_domain/\w+$}) { 182: my %link_info; 183: if ($env{'form.ltoken'}) { 184: $link_info{'ltoken'} = $env{'form.ltoken'}; 185: } elsif ($env{'form.linkprot'}) { 186: $link_info{'linkprot'} = $env{'form.linkprot'}; 187: if ($env{'form.linkprotuser'} ne '') { 188: $link_info{'linkprotuser'} = $env{'form.linkprotuser'}; 189: } 190: } elsif ($env{'form.linkkey'} ne '') { 191: $link_info{'linkkey'} = $env{'form.linkkey'}; 192: } 193: if (keys(%link_info)) { 194: $link_info{'origurl'} = $env{'form.firsturl'}; 195: my $token = &Apache::lonnet::tmpput(\%link_info,$found_server,'link'); 196: unless (($token eq 'con_lost') || ($token eq 'refused') || 197: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) { 198: $dest .= (($dest=~/\?/)?'&':'?') . 'ttoken='.$token; 199: } 200: } 201: } 202: unless ($found_server eq $lonhost) { 203: my $alias = &Apache::lonnet::use_proxy_alias($r,$found_server); 204: $hostname = $alias if ($alias ne ''); 205: } 206: my $url = $protocol.'://'.$hostname.$dest; 207: my $start_page = 208: &Apache::loncommon::start_page('Switching Server ...',undef, 209: {'redirect' => [0,$url],}); 210: my $end_page = &Apache::loncommon::end_page(); 211: $r->print($start_page.$end_page); 212: return OK; 213: } 214: } 215: 216: # 217: # Check if a LON-CAPA load balancer sent user here because user's browser sent 218: # it a balancer cookie for an active session on this server. 219: # 220: 221: my $balcookie; 222: if ($env{'form.btoken'}) { 223: my %info = &Apache::lonnet::tmpget($env{'form.btoken'}); 224: $balcookie = $info{'balcookie'}; 225: &Apache::lonnet::tmpdel($env{'form.btoken'}); 226: delete($env{'form.btoken'}); 227: } 228: 229: # 230: # If browser sent an old cookie for which the session file had been removed 231: # check if configuration for user's domain has a portal URL set. If so 232: # switch user's log-in to the portal. 233: # 234: 235: if (($handle eq '') && ($userdom ne '')) { 236: my %domdefaults = &Apache::lonnet::get_domain_defaults($userdom); 237: if ($domdefaults{'portal_def'} =~ /^https?\:/) { 238: my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef, 239: {'redirect' => [0,$domdefaults{'portal_def'}],}); 240: my $end_page = &Apache::loncommon::end_page(); 241: $r->print($start_page.$end_page); 242: return OK; 243: } 244: } 245: 246: # -------------------------------- Prevent users from attempting to login twice 247: if ($handle ne '') { 248: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle); 249: my $start_page = 250: &Apache::loncommon::start_page('Already logged in'); 251: my $end_page = 252: &Apache::loncommon::end_page(); 253: my $dest = '/adm/roles'; 254: if ($env{'form.firsturl'} ne '') { 255: $dest = &HTML::Entities::encode($env{'form.firsturl'},'\'"<>&'); 256: } 257: if (($env{'form.ltoken'}) || ($env{'form.linkprot'})) { 258: my ($linkprot,$linkprotuser); 259: if ($env{'form.ltoken'}) { 260: my %info = &Apache::lonnet::tmpget($env{'form.ltoken'}); 261: $linkprot = $info{'linkprot'}; 262: if ($info{'linkprotuser'} ne '') { 263: $linkprotuser = $info{'linkprotuser'}; 264: } 265: my $delete = &Apache::lonnet::tmpdel($env{'form.ltoken'}); 266: } else { 267: $linkprot = $env{'form.linkprot'}; 268: $linkprotuser = $env{'form.linkprotuser'}; 269: } 270: if ($linkprot) { 271: my ($linkprotector,$deeplink) = split(/:/,$linkprot,2); 272: if (($deeplink =~ m{^/tiny/$match_domain/\w+$}) && 273: ($linkprotuser ne '') && ($linkprotuser ne $env{'user.name'}.':'.$env{'user.domain'})) { 274: my $ip = &Apache::lonnet::get_requestor_ip(); 275: my %linkprotinfo = ( 276: origurl => $deeplink, 277: linkprot => $linkprot, 278: linkprotuser => $linkprotuser, 279: ); 280: &Apache::migrateuser::logout($r,$ip,$handle,undef,undef,\%linkprotinfo); 281: return OK; 282: } 283: if ($env{'user.linkprotector'}) { 284: my @protectors = split(/,/,$env{'user.linkprotector'}); 285: unless (grep(/^\Q$linkprotector\E$/,@protectors)) { 286: push(@protectors,$linkprotector); 287: @protectors = sort { $a <=> $b } @protectors; 288: &Apache::lonnet::appenv({'user.linkprotector' => join(',',@protectors)}); 289: } 290: } else { 291: &Apache::lonnet::appenv({'user.linkprotector' => $linkprotector }); 292: } 293: if ($env{'user.linkproturi'}) { 294: my @proturis = split(/,/,$env{'user.linkproturi'}); 295: unless (grep(/^\Q$deeplink\E$/,@proturis)) { 296: push(@proturis,$deeplink); 297: @proturis = sort @proturis; 298: &Apache::lonnet::appenv({'user.linkproturi' => join(',',@proturis)}); 299: } 300: } else { 301: &Apache::lonnet::appenv({'user.linkproturi' => $deeplink}); 302: } 303: } 304: } elsif ($env{'form.linkkey'} ne '') { 305: if ($env{'form.firsturl'} =~ m{^/tiny/$match_domain/\w+$}) { 306: my $linkkey = $env{'form.linkkey'}; 307: if ($env{'user.deeplinkkey'}) { 308: my @linkkeys = split(/,/,$env{'user.deeplinkkey'}); 309: unless (grep(/^\Q$linkkey\E$/,@linkkeys)) { 310: push(@linkkeys,$linkkey); 311: &Apache::lonnet::appenv({'user.deeplinkkey' => join(',',sort(@linkkeys))}); 312: } 313: } else { 314: &Apache::lonnet::appenv({'user.deeplinkkey' => $linkkey}); 315: } 316: my $deeplink = $env{'form.firsturl'}; 317: if ($env{'user.keyedlinkuri'}) { 318: my @keyeduris = split(/,/,$env{'user.keyedlinkuri'}); 319: unless (grep(/^\Q$deeplink\E$/,@keyeduris)) { 320: push(@keyeduris,$deeplink); 321: &Apache::lonnet::appenv({'user.keyedlinkuri' => join(',',sort(@keyeduris))}); 322: } 323: } else { 324: &Apache::lonnet::appenv({'user.keyedlinkuri' => $deeplink}); 325: } 326: } 327: } 328: $r->print( 329: $start_page 330: .'<p class="LC_warning">'.&mt('You are already logged in!').'</p>' 331: .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].', 332: '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>' 333: .$end_page 334: ); 335: return OK; 336: } 337: 338: # ---------------------------------------------------- No valid token, continue 339: 340: # ---------------------------- Not possible to really login to domain "public" 341: if ($env{'form.domain'} eq 'public') { 342: $env{'form.domain'}=''; 343: $env{'form.username'}=''; 344: } 345: 346: # ------ Is this page requested because /adm/migrateuser detected an IP change? 347: my %sessiondata; 348: if ($env{'form.iptoken'}) { 349: %sessiondata = &Apache::lonnet::tmpget($env{'form.iptoken'}); 350: unless ($sessiondata{'sessionserver'}) { 351: my $delete = &Apache::lonnet::tmpdel($env{'form.iptoken'}); 352: delete($env{'form.iptoken'}); 353: } 354: } 355: # ----------------------------------------------------------- Process Interface 356: $env{'form.interface'}=~s/\W//g; 357: 358: (undef,undef,undef,undef,undef,undef,my $clientmobile) = 359: &Apache::loncommon::decode_user_agent($r); 360: 361: my $iconpath= 362: &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL')); 363: 364: my $domain = &Apache::lonnet::default_login_domain(); 365: my $defdom = $domain; 366: if ($lonhost ne '') { 367: unless ($sessiondata{'sessionserver'}) { 368: my $redirect = &check_loginvia($domain,$lonhost,$lonidsdir,$balcookie); 369: if ($redirect) { 370: $r->print($redirect); 371: return OK; 372: } 373: } 374: } 375: 376: if (($sessiondata{'domain'}) && 377: (&Apache::lonnet::domain($sessiondata{'domain'},'description'))) { 378: $domain=$sessiondata{'domain'}; 379: } elsif (($env{'form.domain'}) && 380: (&Apache::lonnet::domain($env{'form.domain'},'description'))) { 381: $domain=$env{'form.domain'}; 382: } 383: 384: my $role = $r->dir_config('lonRole'); 385: my $loadlim = $r->dir_config('lonLoadLim'); 386: my $uloadlim= $r->dir_config('lonUserLoadLim'); 387: my $servadm = $r->dir_config('lonAdmEMail'); 388: my $tabdir = $r->dir_config('lonTabDir'); 389: my $include = $r->dir_config('lonIncludes'); 390: my $expire = $r->dir_config('lonExpire'); 391: my $version = $r->dir_config('lonVersion'); 392: my $host_name = &Apache::lonnet::hostname($lonhost); 393: 394: # --------------------------------------------- Default values for login fields 395: 396: my ($authusername,$authdomain); 397: if ($sessiondata{'username'}) { 398: $authusername=$sessiondata{'username'}; 399: } else { 400: $env{'form.username'} = &Apache::loncommon::cleanup_html($env{'form.username'}); 401: $authusername=($env{'form.username'}?$env{'form.username'}:''); 402: } 403: if ($sessiondata{'domain'}) { 404: $authdomain=$sessiondata{'domain'}; 405: } else { 406: $env{'form.domain'} = &Apache::loncommon::cleanup_html($env{'form.domain'}); 407: $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain); 408: } 409: 410: # ---------------------------------------------------------- Determine own load 411: my $loadavg; 412: { 413: my $loadfile=Apache::File->new('/proc/loadavg'); 414: $loadavg=<$loadfile>; 415: } 416: $loadavg =~ s/\s.*//g; 417: 418: my ($loadpercent,$userloadpercent); 419: if ($loadlim) { 420: $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim); 421: } 422: if ($uloadlim) { 423: $userloadpercent=&Apache::lonnet::userload(); 424: } 425: 426: my $firsturl= 427: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'}); 428: 429: # ----------------------------------------------------------- Get announcements 430: my $announcements=&Apache::lonnet::getannounce(); 431: # -------------------------------------------------------- Set login parameters 432: 433: my @hexstr=('0','1','2','3','4','5','6','7', 434: '8','9','a','b','c','d','e','f'); 435: my $lkey=''; 436: for (0..7) { 437: $lkey.=$hexstr[rand(15)]; 438: } 439: 440: my $ukey=''; 441: for (0..7) { 442: $ukey.=$hexstr[rand(15)]; 443: } 444: 445: my $lextkey=hex($lkey); 446: if ($lextkey>2147483647) { $lextkey-=4294967296; } 447: 448: my $uextkey=hex($ukey); 449: if ($uextkey>2147483647) { $uextkey-=4294967296; } 450: 451: # -------------------------------------------------------- Store away log token 452: my ($tokenextras,$tokentype,$linkprot_for_login); 453: my @names = ('role','symb','iptoken','ltoken','linkprotuser','linkprot','linkkey'); 454: foreach my $name (@names) { 455: if ($env{'form.'.$name} ne '') { 456: if ($name eq 'ltoken') { 457: my %info = &Apache::lonnet::tmpget($env{'form.'.$name}); 458: if ($info{'linkprot'}) { 459: $linkprot_for_login = $info{'linkprot'}; 460: $tokenextras .= '&linkprot='.&escape($info{'linkprot'}); 461: if ($info{'linkprotuser'}) { 462: $tokenextras .= '&linkprotuser='.&escape($info{'linkprotuser'}); 463: } 464: $tokentype = 'link'; 465: last; 466: } 467: } else { 468: $tokenextras .= '&'.$name.'='.&escape($env{'form.'.$name}); 469: if (($name eq 'linkkey') || ($name eq 'linkprot')) { 470: if ((($env{'form.retry'}) || ($env{'form.sso'})) && 471: (!$env{'form.ltoken'}) && ($name eq 'linkprot')) { 472: $linkprot_for_login = $env{'form.linkprot'}; 473: } 474: $tokentype = 'link'; 475: } 476: } 477: } 478: } 479: if ($tokentype) { 480: $tokenextras .= ":$tokentype"; 481: } 482: my $logtoken=Apache::lonnet::reply( 483: 'tmpput:'.$ukey.$lkey.'&'.&escape($firsturl).$tokenextras, 484: $lonhost); 485: 486: # -- If we cannot talk to ourselves, or hostID does not map to a hostname 487: # we are in serious trouble 488: 489: if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) { 490: if ($logtoken eq 'no_such_host') { 491: &Apache::lonnet::logthis('No valid logtoken for log-in page -- unable to determine hostname for hostID: '.$lonhost.'. Check entry in hosts.tab'); 492: } 493: if ($env{'form.ltoken'}) { 494: &Apache::lonnet::tmpdel($env{'form.ltoken'}); 495: delete($env{'form.ltoken'}); 496: } 497: my $spares=''; 498: my (@sparehosts,%spareservers); 499: my $sparesref = &Apache::lonnet::this_host_spares($defdom); 500: if (ref($sparesref) eq 'HASH') { 501: foreach my $key (keys(%{$sparesref})) { 502: if (ref($sparesref->{$key}) eq 'ARRAY') { 503: my @sorted = sort { &Apache::lonnet::hostname($a) cmp 504: &Apache::lonnet::hostname($b); 505: } @{$sparesref->{$key}}; 506: if (@sorted) { 507: if ($key eq 'primary') { 508: unshift(@sparehosts,@sorted); 509: } elsif ($key eq 'default') { 510: push(@sparehosts,@sorted); 511: } 512: } 513: } 514: } 515: } 516: foreach my $hostid (@sparehosts) { 517: next if ($hostid eq $lonhost); 518: my $hostname = &Apache::lonnet::hostname($hostid); 519: next if (($hostname eq '') || ($spareservers{$hostname})); 520: $spareservers{$hostname} = 1; 521: my $protocol = $Apache::lonnet::protocol{$hostid}; 522: $protocol = 'http' if ($protocol ne 'https'); 523: $spares.='<br /><span style="font-size: larger;"><a href="'.$protocol.'://'. 524: $hostname. 525: '/adm/login?domain='.$authdomain.'">'. 526: $hostname.'</a>'. 527: ' '.&mt('(preferred)').'</span>'.$/; 528: } 529: if ($spares) { 530: $spares.= '<br />'; 531: } 532: my %all_hostnames = &Apache::lonnet::all_hostnames(); 533: foreach my $hostid (sort 534: { 535: &Apache::lonnet::hostname($a) cmp 536: &Apache::lonnet::hostname($b); 537: } 538: keys(%all_hostnames)) { 539: next if ($hostid eq $lonhost); 540: my $hostname = &Apache::lonnet::hostname($hostid); 541: next if (($hostname eq '') || ($spareservers{$hostname})); 542: $spareservers{$hostname} = 1; 543: my $protocol = $Apache::lonnet::protocol{$hostid}; 544: $protocol = 'http' if ($protocol ne 'https'); 545: $spares.='<br /><a href="'.$protocol.'://'. 546: $hostname. 547: '/adm/login?domain='.$authdomain.'">'. 548: $hostname.'</a>'; 549: } 550: $r->print( 551: '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">' 552: .'<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">' 553: .'<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>' 554: .&mt('The LearningOnline Network with CAPA') 555: .'</title></head>' 556: .'<body bgcolor="#FFFFFF">' 557: .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>' 558: .'<img src="/adm/lonKaputt/lonlogo_broken.gif" alt="broken icon" align="right" />' 559: .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>'); 560: if ($spares) { 561: $r->print('<p>'.&mt('Please attempt to login to one of the following servers:') 562: .'</p>' 563: .$spares); 564: } 565: $r->print('</body>' 566: .'</html>' 567: ); 568: return OK; 569: } 570: 571: # ----------------------------------------------- Apparently we are in business 572: $servadm=~s/\,/\<br \/\>/g; 573: 574: # ----------------------------------------------------------- Front page design 575: my $pgbg=&Apache::loncommon::designparm('login.pgbg',$domain); 576: my $font=&Apache::loncommon::designparm('login.font',$domain); 577: my $link=&Apache::loncommon::designparm('login.link',$domain); 578: my $vlink=&Apache::loncommon::designparm('login.vlink',$domain); 579: my $alink=&Apache::loncommon::designparm('login.alink',$domain); 580: my $mainbg=&Apache::loncommon::designparm('login.mainbg',$domain); 581: my $loginbox_bg=&Apache::loncommon::designparm('login.sidebg',$domain); 582: my $loginbox_header_bgcol=&Apache::loncommon::designparm('login.bgcol',$domain); 583: my $loginbox_header_textcol=&Apache::loncommon::designparm('login.textcol',$domain); 584: my $logo=&Apache::loncommon::designparm('login.logo',$domain); 585: my $img=&Apache::loncommon::designparm('login.img',$domain); 586: my $domainlogo=&Apache::loncommon::domainlogo($domain); 587: my $showbanner = 1; 588: my $showmainlogo = 1; 589: if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) { 590: $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain); 591: } 592: if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) { 593: $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain); 594: } 595: my $showadminmail; 596: my @possdoms = &Apache::lonnet::current_machine_domains(); 597: if (grep(/^\Q$domain\E$/,@possdoms)) { 598: $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain); 599: } 600: my $showcoursecat = 601: &Apache::loncommon::designparm('login.coursecatalog',$domain); 602: my $shownewuserlink = 603: &Apache::loncommon::designparm('login.newuser',$domain); 604: my $showhelpdesk = 605: &Apache::loncommon::designparm('login.helpdesk',$domain); 606: my $now=time; 607: my $js = (<<ENDSCRIPT); 608: 609: <script type="text/javascript" language="JavaScript"> 610: // <![CDATA[ 611: function send() 612: { 613: this.document.server.elements.uname.value 614: =this.document.client.elements.uname.value; 615: 616: this.document.server.elements.udom.value 617: =this.document.client.elements.udom.value; 618: 619: uextkey=this.document.client.elements.uextkey.value; 620: lextkey=this.document.client.elements.lextkey.value; 621: initkeys(); 622: 623: if(this.document.server.action.substr(0,5) === 'http:'){ 624: this.document.server.elements.upass0.value 625: =getCrypted(this.document.client.elements.upass$now.value); 626: } else { 627: this.document.server.elements.upass0.value 628: =this.document.client.elements.upass$now.value; 629: } 630: 631: this.document.client.elements.uname.value=''; 632: this.document.client.elements.upass$now.value=''; 633: 634: this.document.server.submit(); 635: return false; 636: } 637: 638: function enableInput() { 639: this.document.client.elements.upass$now.removeAttribute("readOnly"); 640: this.document.client.elements.uname.removeAttribute("readOnly"); 641: this.document.client.elements.udom.removeAttribute("readOnly"); 642: return; 643: } 644: 645: // ]]> 646: </script> 647: 648: ENDSCRIPT 649: 650: my ($lonhost_in_use,@hosts,%defaultdomconf,$saml_prefix,$saml_landing, 651: $samlssotext,$samlnonsso,$samlssoimg,$samlssoalt,$samlssourl,$samltooltip); 652: %defaultdomconf = &Apache::loncommon::get_domainconf($defdom); 653: @hosts = &Apache::lonnet::current_machine_ids(); 654: $lonhost_in_use = $lonhost; 655: if (@hosts > 1) { 656: foreach my $hostid (@hosts) { 657: if (&Apache::lonnet::host_domain($hostid) eq $defdom) { 658: $lonhost_in_use = $hostid; 659: last; 660: } 661: } 662: } 663: $saml_prefix = $defdom.'.login.saml_'; 664: if ($defaultdomconf{$saml_prefix.$lonhost_in_use}) { 665: $saml_landing = 1; 666: $samlssotext = $defaultdomconf{$saml_prefix.'text_'.$lonhost_in_use}; 667: $samlnonsso = $defaultdomconf{$saml_prefix.'notsso_'.$lonhost_in_use}; 668: $samlssoimg = $defaultdomconf{$saml_prefix.'img_'.$lonhost_in_use}; 669: $samlssoalt = $defaultdomconf{$saml_prefix.'alt_'.$lonhost_in_use}; 670: $samlssourl = $defaultdomconf{$saml_prefix.'url_'.$lonhost_in_use}; 671: $samltooltip = $defaultdomconf{$saml_prefix.'title_'.$lonhost_in_use}; 672: } 673: if ($saml_landing) { 674: if ($samlssotext eq '') { 675: $samlssotext = 'SSO Login'; 676: } 677: if ($samlnonsso eq '') { 678: $samlnonsso = 'Non-SSO Login'; 679: } 680: $js .= <<"ENDSAMLJS"; 681: 682: <script type="text/javascript"> 683: // <![CDATA[ 684: function toggleLClogin() { 685: if (document.getElementById('LC_standard_login')) { 686: if (document.getElementById('LC_standard_login').style.display == 'none') { 687: document.getElementById('LC_standard_login').style.display = 'inline-block'; 688: if (document.getElementById('LC_login_text')) { 689: document.getElementById('LC_login_text').innerHTML = '$samlnonsso'; 690: } 691: if ( document.client.uname ) { document.client.uname.focus(); } 692: if (document.getElementById('LC_SSO_login')) { 693: document.getElementById('LC_SSO_login').style.display = 'none'; 694: } 695: } else { 696: document.getElementById('LC_standard_login').style.display = 'none'; 697: if (document.getElementById('LC_login_text')) { 698: document.getElementById('LC_login_text').innerHTML = '$samlssotext'; 699: } 700: if (document.getElementById('LC_SSO_login')) { 701: document.getElementById('LC_SSO_login').style.display = 'inline-block'; 702: } 703: } 704: } 705: return; 706: } 707: 708: // ]]> 709: </script> 710: 711: ENDSAMLJS 712: } 713: 714: # --------------------------------------------------- Print login screen header 715: 716: my %add_entries = ( 717: bgcolor => "$mainbg", 718: text => "$font", 719: link => "$link", 720: vlink => "$vlink", 721: alink => "$alink", 722: onload => 'javascript:enableInput();',); 723: 724: my ($headextra,$headextra_exempt); 725: $headextra = $defaultdomconf{$defdom.'.login.headtag_'.$lonhost_in_use}; 726: $headextra_exempt = $defaultdomconf{$domain.'.login.headtag_exempt_'.$lonhost_in_use}; 727: if ($headextra) { 728: my $omitextra; 729: if ($headextra_exempt ne '') { 730: my @exempt = split(',',$headextra_exempt); 731: my $ip = &Apache::lonnet::get_requestor_ip(); 732: if (grep(/^\Q$ip\E$/,@exempt)) { 733: $omitextra = 1; 734: } 735: } 736: unless ($omitextra) { 737: my $confname = $defdom.'-domainconfig'; 738: if ($headextra =~ m{^\Q/res/$defdom/$confname/login/headtag/$lonhost_in_use/\E}) { 739: my $extra = &Apache::lonnet::getfile(&Apache::lonnet::filelocation("",$headextra)); 740: unless ($extra eq '-1') { 741: $js .= "\n".$extra."\n"; 742: } 743: } 744: } 745: } 746: 747: $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js, 748: { 'redirect' => [$expire,'/adm/roles'], 749: 'add_entries' => \%add_entries, 750: 'only_body' => 1,})); 751: 752: # ----------------------------------------------------------------------- Texts 753: 754: my %lt=&Apache::lonlocal::texthash( 755: 'un' => 'Username', 756: 'pw' => 'Password', 757: 'dom' => 'Domain', 758: 'perc' => 'percent', 759: 'load' => 'Server Load', 760: 'userload' => 'User Load', 761: 'catalog' => 'Course/Community Catalog', 762: 'log' => 'Log in', 763: 'help' => 'Log-in Help', 764: 'serv' => 'Server', 765: 'servadm' => 'Server Administration', 766: 'helpdesk' => 'Contact Helpdesk', 767: 'forgotpw' => 'Forgot password?', 768: 'newuser' => 'New User?', 769: 'change' => 'Change?', 770: ); 771: # -------------------------------------------------- Change password field name 772: 773: my $forgotpw = &forgotpwdisplay(%lt); 774: $forgotpw .= '<br />' if $forgotpw; 775: my $loginhelp = &Apache::lonauth::loginhelpdisplay($authdomain); 776: if ($loginhelp) { 777: $loginhelp = '<a href="'.$loginhelp.'">'.$lt{'help'}.'</a><br />'; 778: } 779: 780: # ---------------------------------------------------- Serve out DES JavaScript 781: { 782: my $jsh=Apache::File->new($include."/londes.js"); 783: $r->print(<$jsh>); 784: } 785: # ---------------------------------------------------------- Serve rest of page 786: 787: $r->print( 788: '<div class="LC_Box"' 789: .' style="margin:0 auto; padding:10px; width:90%; height: auto; background-color:#FFFFFF;">' 790: ); 791: 792: $r->print(<<ENDSERVERFORM); 793: <form name="server" action="/adm/authenticate" method="post" target="_top"> 794: <input type="hidden" name="logtoken" value="$logtoken" /> 795: <input type="hidden" name="serverid" value="$lonhost" /> 796: <input type="hidden" name="uname" value="" /> 797: <input type="hidden" name="upass0" value="" /> 798: <input type="hidden" name="udom" value="" /> 799: <input type="hidden" name="localpath" value="$env{'form.localpath'}" /> 800: <input type="hidden" name="localres" value="$env{'form.localres'}" /> 801: </form> 802: ENDSERVERFORM 803: my $coursecatalog; 804: if (($showcoursecat eq '') || ($showcoursecat)) { 805: $coursecatalog = &coursecatalog_link($lt{'catalog'}).'<br />'; 806: } 807: my $newuserlink; 808: if ($shownewuserlink) { 809: $newuserlink = &newuser_link($lt{'newuser'}).'<br />'; 810: } 811: my $logintitle = 812: '<h2 class="LC_hcell"' 813: .' style="background:'.$loginbox_header_bgcol.';' 814: .' color:'.$loginbox_header_textcol.'">' 815: .$lt{'log'} 816: .'</h2>'; 817: 818: my $noscript_warning='<noscript><span class="LC_warning"><b>' 819: .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.') 820: .'</b></span></noscript>'; 821: my $helpdeskscript; 822: my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail, 823: $authdomain,\$helpdeskscript, 824: $showhelpdesk,\@possdoms); 825: 826: my $mobileargs; 827: if ($clientmobile) { 828: $mobileargs = 'autocapitalize="off" autocorrect="off"'; 829: } 830: my $loginform=(<<LFORM); 831: <form name="client" action="" onsubmit="return(send())" id="lclogin"> 832: <input type="hidden" name="lextkey" value="$lextkey" /> 833: <input type="hidden" name="uextkey" value="$uextkey" /> 834: <b><label for="uname">$lt{'un'}</label>:</b><br /> 835: <input type="text" name="uname" id="uname" size="15" value="$authusername" readonly="readonly" $mobileargs /><br /> 836: <b><label for="upass$now">$lt{'pw'}</label>:</b><br /> 837: <input type="password" name="upass$now" id="upass$now" size="15" readonly="readonly" /><br /> 838: <b><label for="udom">$lt{'dom'}</label>:</b><br /> 839: <input type="text" name="udom" id="udom" size="15" value="$authdomain" readonly="readonly" $mobileargs /><br /> 840: <input type="submit" value="$lt{'log'}" /> 841: </form> 842: LFORM 843: 844: if ($showbanner) { 845: my $alttext = &Apache::loncommon::designparm('login.alttext_img',$domain); 846: if ($alttext eq '') { 847: $alttext = 'The Learning Online Network with CAPA'; 848: } 849: $r->print(<<HEADER); 850:  851: <div style="background:$pgbg;margin:0;width:100%;"> 852: <img src="$img" border="0" alt="$alttext" class="LC_maxwidth" id="lcloginbanner" /> 853: </div> 854: HEADER 855: } 856: 857: my $stdauthformstyle = 'inline-block'; 858: my $ssoauthstyle = 'none'; 859: my $logintype; 860: $r->print('<div style="float:left;margin-top:0;">'); 861: if ($saml_landing) { 862: $ssoauthstyle = 'inline-block'; 863: $stdauthformstyle = 'none'; 864: $logintype = $samlssotext; 865: my $ssologin = '/adm/sso'; 866: if ($samlssourl ne '') { 867: $ssologin = $samlssourl; 868: } 869: if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) { 870: my $querystring; 871: if ($env{'form.firsturl'} ne '') { 872: $querystring = 'origurl='; 873: if ($env{'form.firsturl'} =~ /[^\x00-\xFF]/) { 874: $querystring .= &uri_escape_utf8($env{'form.firsturl'}); 875: } else { 876: $querystring .= &uri_escape($env{'form.firsturl'}); 877: } 878: $querystring = &HTML::Entities::encode($querystring,"'"); 879: } 880: if ($env{'form.ltoken'} ne '') { 881: $querystring .= (($querystring eq '')?'':'&') . 'ltoken='. 882: &HTML::Entities::encode(&uri_escape($env{'form.ltoken'})); 883: } elsif ($env{'form.linkkey'}) { 884: $querystring .= (($querystring eq '')?'':'&') . 'linkkey='. 885: &HTML::Entities::encode(&uri_escape($env{'form.linkkey'})); 886: } 887: if ($querystring ne '') { 888: $ssologin .= (($ssologin=~/\?/)?'&':'?') . $querystring; 889: } 890: } elsif ($logtoken ne '') { 891: $ssologin .= (($ssologin=~/\?/)?'&':'?') . 'logtoken='.$logtoken; 892: } 893: my $ssohref; 894: if ($samlssoimg ne '') { 895: $ssohref = '<a href="'.$ssologin.'" title="'.$samltooltip.'">'. 896: '<img src="'.$samlssoimg.'" alt="'.$samlssoalt.'" id="lcssobutton" /></a>'; 897: } else { 898: $ssohref = '<a href="'.$ssologin.'">'.$samlssotext.'</a>'; 899: } 900: if (($env{'form.saml'} eq 'no') || 901: (($env{'form.username'} ne '') && ($env{'form.domain'} ne ''))) { 902: $ssoauthstyle = 'none'; 903: $stdauthformstyle = 'inline-block'; 904: $logintype = $samlnonsso; 905: } 906: $r->print(<<ENDSAML); 907: <p> 908: Log-in type: 909: <span style="font-weight:bold" id="LC_login_text">$logintype</span><br /> 910: <span><a href="javascript:toggleLClogin();" style="color:#000000">$lt{'change'}</a></span> 911: </p> 912: <div style="display:$ssoauthstyle" id="LC_SSO_login"> 913: <div class="LC_Box" style="padding-top: 10px;"> 914: $ssohref 915: $noscript_warning 916: </div> 917: <div class="LC_Box" style="padding-top: 10px;"> 918: $loginhelp 919: $contactblock 920: $coursecatalog 921: </div> 922: </div> 923: ENDSAML 924: } else { 925: if ($env{'form.ltoken'}) { 926: &Apache::lonnet::tmpdel($env{'form.ltoken'}); 927: delete($env{'form.ltoken'}); 928: } 929: } 930: my $in_frame_js; 931: if ($linkprot_for_login) { 932: my ($linkprotector,$linkproturi) = split(/:/,$linkprot_for_login,2); 933: if (($linkprotector =~ /^\d+(c|d)$/) && ($linkproturi =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$})) { 934: my $set_target; 935: if (($env{'form.retry'}) || ($env{'form.sso'})) { 936: if ($linkproturi eq $env{'form.firsturl'}) { 937: $set_target = " document.server.target = '_self';"; 938: } 939: } else { 940: $set_target = <<ENDTARG; 941: var linkproturi = '$linkproturi'; 942: var path = document.location.pathname.replace( new RegExp('^/adm/launch'),''); 943: if (linkproturi == path) { 944: document.server.target = '_self'; 945: } 946: ENDTARG 947: } 948: $in_frame_js = <<ENDJS; 949: <script type="text/javascript"> 950: // <![CDATA[ 951: if ((window.self !== window.top) && (document.server.target != '_self')) { 952: $set_target 953: } 954: // ]]> 955: </script> 956: ENDJS 957: } 958: } 959: 960: $r->print(<<ENDLOGIN); 961: <div style="display:$stdauthformstyle;" id="LC_standard_login"> 962: <div class="LC_Box" style="background:$loginbox_bg;"> 963: $logintitle 964: $loginform 965: $noscript_warning 966: </div> 967: 968: <div class="LC_Box" style="padding-top: 10px;"> 969: $loginhelp 970: $forgotpw 971: $contactblock 972: $newuserlink 973: $coursecatalog 974: </div> 975: </div> 976: 977: ENDLOGIN 978: $r->print('</div><div>'."\n"); 979: if ($showmainlogo) { 980: my $alttext = &Apache::loncommon::designparm('login.alttext_logo',$domain); 981: $r->print(' <img src="'.$logo.'" alt="'.$alttext.'" class="LC_maxwidth" id="lcloginmainlogo" />'."\n"); 982: } 983: $r->print(<<ENDTOP); 984: $announcements 985: </div> 986: <hr style="clear:both;" /> 987: ENDTOP 988: my ($domainrow,$serverrow,$loadrow,$userloadrow,$versionrow); 989: $domainrow = <<"END"; 990: <tr> 991: <td align="left" valign="top"> 992: <small><b>$lt{'dom'}: </b></small> 993: </td> 994: <td align="left" valign="top"> 995: <small><tt> $domain</tt></small> 996: </td> 997: </tr> 998: END 999: $serverrow = <<"END"; 1000: <tr> 1001: <td align="left" valign="top"> 1002: <small><b>$lt{'serv'}: </b></small> 1003: </td> 1004: <td align="left" valign="top"> 1005: <small><tt> $lonhost ($role)</tt></small> 1006: </td> 1007: </tr> 1008: END 1009: if ($loadlim) { 1010: $loadrow = <<"END"; 1011: <tr> 1012: <td align="left" valign="top"> 1013: <small><b>$lt{'load'}: </b></small> 1014: </td> 1015: <td align="left" valign="top"> 1016: <small><tt> $loadpercent $lt{'perc'}</tt></small> 1017: </td> 1018: </tr> 1019: END 1020: } 1021: if ($uloadlim) { 1022: $userloadrow = <<"END"; 1023: <tr> 1024: <td align="left" valign="top"> 1025: <small><b>$lt{'userload'}: </b></small> 1026: </td> 1027: <td align="left" valign="top"> 1028: <small><tt> $userloadpercent $lt{'perc'}</tt></small> 1029: </td> 1030: </tr> 1031: END 1032: } 1033: if (($version ne '') && ($version ne '')) { 1034: $versionrow = <<"END"; 1035: <tr> 1036: <td colspan="2" align="left"> 1037: <small>$version</small> 1038: </td> 1039: </tr> 1040: END 1041: } 1042: 1043: $r->print(<<ENDDOCUMENT); 1044: <div style="float: left;"> 1045: <table border="0" cellspacing="0" cellpadding="0"> 1046: $domainrow 1047: $serverrow 1048: $loadrow 1049: $userloadrow 1050: $versionrow 1051: </table> 1052: </div> 1053: <div style="float: right;"> 1054: $domainlogo 1055: </div> 1056: <br style="clear:both;" /> 1057: </div> 1058: 1059: $in_frame_js 1060: <script type="text/javascript"> 1061: // <![CDATA[ 1062: // the if prevents the script error if the browser can not handle this 1063: if ( document.client.uname ) { document.client.uname.focus(); } 1064: // ]]> 1065: </script> 1066: $helpdeskscript 1067: 1068: ENDDOCUMENT 1069: my %endargs = ( 'noredirectlink' => 1, ); 1070: $r->print(&Apache::loncommon::end_page(\%endargs)); 1071: return OK; 1072: } 1073: 1074: sub check_loginvia { 1075: my ($domain,$lonhost,$lonidsdir,$balcookie) = @_; 1076: if ($domain eq '' || $lonhost eq '' || $lonidsdir eq '') { 1077: return; 1078: } 1079: my %domconfhash = &Apache::loncommon::get_domainconf($domain); 1080: my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost}; 1081: my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost}; 1082: my $output; 1083: if ($loginvia ne '') { 1084: my $noredirect; 1085: my $ip = &Apache::lonnet::get_requestor_ip(); 1086: if ($ip eq '127.0.0.1') { 1087: $noredirect = 1; 1088: } else { 1089: if ($loginvia_exempt ne '') { 1090: my @exempt = split(',',$loginvia_exempt); 1091: if (grep(/^\Q$ip\E$/,@exempt)) { 1092: $noredirect = 1; 1093: } 1094: } 1095: } 1096: unless ($noredirect) { 1097: my ($newhost,$path); 1098: if ($loginvia =~ /:/) { 1099: ($newhost,$path) = split(':',$loginvia); 1100: } else { 1101: $newhost = $loginvia; 1102: } 1103: if ($newhost ne $lonhost) { 1104: if (&Apache::lonnet::hostname($newhost) ne '') { 1105: if ($balcookie) { 1106: my ($balancer,$cookie) = split(/:/,$balcookie); 1107: if ($cookie =~ /^($match_domain)_($match_username)_([a-f0-9]+)$/) { 1108: my ($udom,$uname,$cookieid) = ($1,$2,$3); 1109: unless (&Apache::lonnet::delbalcookie($cookie,$balancer) eq 'ok') { 1110: if ((-d $lonidsdir) && (opendir(my $dh,$lonidsdir))) { 1111: while (my $filename=readdir($dh)) { 1112: if ($filename=~/^(\Q$uname\E_\d+_\Q$udom\E_$match_lonid)\.id$/) { 1113: my $handle = $1; 1114: my %hash = 1115: &Apache::lonnet::get_sessionfile_vars($handle,$lonidsdir, 1116: ['request.balancercookie', 1117: 'user.linkedenv']); 1118: if ($hash{'request.balancercookie'} eq "$balancer:$cookieid") { 1119: if (unlink("$lonidsdir/$filename")) { 1120: if (($hash{'user.linkedenv'} =~ /^[a-f0-9]+_linked$/) && 1121: (-l "$lonidsdir/$hash{'user.linkedenv'}.id") && 1122: (readlink("$lonidsdir/$hash{'user.linkedenv'}.id") eq "$lonidsdir/$filename")) { 1123: unlink("$lonidsdir/$hash{'user.linkedenv'}.id"); 1124: } 1125: } 1126: } 1127: last; 1128: } 1129: } 1130: closedir($dh); 1131: } 1132: } 1133: } 1134: } 1135: $output = &redirect_page($newhost,$path); 1136: } 1137: } 1138: } 1139: } 1140: return $output; 1141: } 1142: 1143: sub redirect_page { 1144: my ($desthost,$path) = @_; 1145: my $hostname = &Apache::lonnet::hostname($desthost); 1146: my $protocol = $Apache::lonnet::protocol{$desthost}; 1147: $protocol = 'http' if ($protocol ne 'https'); 1148: unless ($path =~ m{^/}) { 1149: $path = '/'.$path; 1150: } 1151: my $url = $protocol.'://'.$hostname.$path; 1152: if ($env{'form.firsturl'} =~ m{^/tiny/$match_domain/\w+$}) { 1153: $url = $protocol.'://'.$hostname.$env{'form.firsturl'}; 1154: if (($env{'form.ltoken'}) || ($env{'form.linkprot'} ne '') || 1155: ($env{'form.linkkey'} ne '')) { 1156: my %link_info; 1157: if ($env{'form.ltoken'}) { 1158: %link_info = &Apache::lonnet::tmpget($env{'form.ltoken'}); 1159: &Apache::lonnet::tmpdel($env{'form.ltoken'}); 1160: } elsif ($env{'form.linkprot'}) { 1161: $link_info{'linkprot'} = $env{'form.linkprot'}; 1162: if ($env{'form.linkprotuser'}) { 1163: $link_info{'linkprotuser'} = $env{'form.linkprotuser'}; 1164: } 1165: } elsif ($env{'form.linkkey'} ne '') { 1166: $link_info{'linkkey'} = $env{'form.linkkey'}; 1167: } 1168: my $token = &Apache::lonnet::tmpput(\%link_info,$desthost,'link'); 1169: unless (($token eq 'con_lost') || ($token eq 'refused') || 1170: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) { 1171: $url .= '?ltoken='.$token; 1172: } 1173: } 1174: } else { 1175: my $querystring; 1176: if ($env{'form.firsturl'} ne '') { 1177: if ($env{'form.firsturl'} =~ /[^\x00-\xFF]/) { 1178: $querystring = &uri_escape_utf8($env{'form.firsturl'}); 1179: } else { 1180: $querystring = &uri_escape($env{'form.firsturl'}); 1181: } 1182: $querystring = &HTML::Entities::encode($querystring,"'"); 1183: $querystring = '?firsturl='.$querystring; 1184: } 1185: if ($env{'form.ltoken'}) { 1186: my %link_info = &Apache::lonnet::tmpget($env{'form.ltoken'}); 1187: &Apache::lonnet::tmpdel($env{'form.ltoken'}); 1188: my $token = &Apache::lonnet::tmpput(\%link_info,$desthost,'link'); 1189: unless (($token eq 'con_lost') || ($token eq 'refused') || ($token =~ /^error:/) || 1190: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) { 1191: unless (($path eq '/adm/roles') || ($path eq '/adm/login')) { 1192: $url = $protocol.'://'.$hostname.'/adm/roles'; 1193: } 1194: $querystring .= (($querystring =~/^\?/)?'&':'?') . 'ttoken='.$token; 1195: } 1196: } 1197: $url .= $querystring; 1198: } 1199: my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef, 1200: {'redirect' => [0,$url],}); 1201: my $end_page = &Apache::loncommon::end_page(); 1202: return $start_page.$end_page; 1203: } 1204: 1205: sub contactdisplay { 1206: my ($lt,$servadm,$showadminmail,$authdomain,$helpdeskscript,$showhelpdesk, 1207: $possdoms) = @_; 1208: my $contactblock; 1209: my $origmail; 1210: if (ref($possdoms) eq 'ARRAY') { 1211: if (grep(/^\Q$authdomain\E$/,@{$possdoms})) { 1212: $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'}; 1213: } 1214: } 1215: my $requestmail = 1216: &Apache::loncommon::build_recipient_list(undef,'helpdeskmail', 1217: $authdomain,$origmail); 1218: unless ($showhelpdesk eq '0') { 1219: if ($requestmail =~ m/[^\@]+\@[^\@]+/) { 1220: $showhelpdesk = 1; 1221: } else { 1222: $showhelpdesk = 0; 1223: } 1224: } 1225: if ($servadm && $showadminmail) { 1226: $contactblock .= $$lt{'servadm'}.':<br />'. 1227: '<tt>'.$servadm.'</tt><br />'; 1228: } 1229: if ($showhelpdesk) { 1230: $contactblock .= '<a href="javascript:helpdesk()">'.$lt->{'helpdesk'}.'</a><br />'; 1231: my $thisurl = &escape('/adm/login'); 1232: $$helpdeskscript = <<"ENDSCRIPT"; 1233: <script type="text/javascript"> 1234: // <![CDATA[ 1235: function helpdesk() { 1236: var possdom = document.client.udom.value; 1237: var codedom = possdom.replace( new RegExp("[^A-Za-z0-9.\\-]","g"),''); 1238: if (codedom == '') { 1239: codedom = "$authdomain"; 1240: } 1241: var querystr = "origurl=$thisurl&codedom="+codedom; 1242: document.location.href = "/adm/helpdesk?"+querystr; 1243: return; 1244: } 1245: // ]]> 1246: </script> 1247: ENDSCRIPT 1248: } 1249: return $contactblock; 1250: } 1251: 1252: sub forgotpwdisplay { 1253: my (%lt) = @_; 1254: my $prompt_for_resetpw = 1; 1255: if ($prompt_for_resetpw) { 1256: return '<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a>'; 1257: } 1258: return; 1259: } 1260: 1261: sub coursecatalog_link { 1262: my ($linkname) = @_; 1263: return <<"END"; 1264: <a href="/adm/coursecatalog">$linkname</a> 1265: END 1266: } 1267: 1268: sub newuser_link { 1269: my ($linkname) = @_; 1270: return '<a href="/adm/createaccount">'.$linkname.'</a>'; 1271: } 1272: 1273: sub decode_token { 1274: my ($info) = @_; 1275: my ($firsturl,@rest)=split(/\&/,$info); 1276: my %form; 1277: if ($firsturl ne '') { 1278: $form{'firsturl'} = &unescape($firsturl); 1279: } 1280: foreach my $item (@rest) { 1281: my ($key,$value) = split(/=/,$item); 1282: $form{$key} = &unescape($value); 1283: } 1284: return %form; 1285: } 1286: 1287: 1; 1288: __END__