loncom/auth/lonlogin.pm - view

File: [LON-CAPA] / loncom / auth / lonlogin.pm
Revision 1.200: download - view: text, annotated - select for diffs
Sun Jun 26 04:03:47 2022 UTC (23 months, 1 week ago) by raeburn
Branches: MAIN
CVS tags: HEAD

- Bug 6907
  - Set request.linkprotuser in %env for students accessing deep-linked items
    with LTI link protection which includes username from other LMS.
  - Set "only_body" for intermediate pages shown while session is being set up
    for LTI link-protected access.
  - Provide appropriate feedback when a deep link is followed but the user
    only has a future and/or expired role in the target course.

1: # The LearningOnline Network 2: # Login Screen 3: # 4: # $Id: lonlogin.pm,v 1.200 2022/06/26 04:03:47 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: } else { 266: $linkprot = $env{'form.linkprot'}; 267: $linkprotuser = $env{'form.linkprotuser'}; 268: } 269: if ($linkprot) { 270: my ($linkprotector,$deeplink) = split(/:/,$linkprot,2); 271: if (($deeplink =~ m{^/tiny/$match_domain/\w+$}) && 272: ($linkprotuser ne '') && ($linkprotuser ne $env{'user.name'}.':'.$env{'user.domain'})) { 273: my $ip = &Apache::lonnet::get_requestor_ip(); 274: my %linkprotinfo = ( 275: origurl => $deeplink, 276: linkprot => $linkprot, 277: linkprotuser => $linkprotuser, 278: ); 279: if ($env{'form.ltoken'}) { 280: my $delete = &Apache::lonnet::tmpdel($env{'form.ltoken'}); 281: } 282: &Apache::migrateuser::logout($r,$ip,$handle,undef,undef,\%linkprotinfo); 283: return OK; 284: } 285: if ($env{'user.linkprotector'}) { 286: my @protectors = split(/,/,$env{'user.linkprotector'}); 287: unless (grep(/^\Q$linkprotector\E$/,@protectors)) { 288: push(@protectors,$linkprotector); 289: @protectors = sort { $a <=> $b } @protectors; 290: &Apache::lonnet::appenv({'user.linkprotector' => join(',',@protectors)}); 291: } 292: } else { 293: &Apache::lonnet::appenv({'user.linkprotector' => $linkprotector }); 294: } 295: if ($env{'user.linkproturi'}) { 296: my @proturis = split(/,/,$env{'user.linkproturi'}); 297: unless (grep(/^\Q$deeplink\E$/,@proturis)) { 298: push(@proturis,$deeplink); 299: @proturis = sort @proturis; 300: &Apache::lonnet::appenv({'user.linkproturi' => join(',',@proturis)}); 301: } 302: } else { 303: &Apache::lonnet::appenv({'user.linkproturi' => $deeplink}); 304: } 305: } 306: } elsif ($env{'form.linkkey'} ne '') { 307: if ($env{'form.firsturl'} =~ m{^/tiny/$match_domain/\w+$}) { 308: my $linkkey = $env{'form.linkkey'}; 309: if ($env{'user.deeplinkkey'}) { 310: my @linkkeys = split(/,/,$env{'user.deeplinkkey'}); 311: unless (grep(/^\Q$linkkey\E$/,@linkkeys)) { 312: push(@linkkeys,$linkkey); 313: &Apache::lonnet::appenv({'user.deeplinkkey' => join(',',sort(@linkkeys))}); 314: } 315: } else { 316: &Apache::lonnet::appenv({'user.deeplinkkey' => $linkkey}); 317: } 318: my $deeplink = $env{'form.firsturl'}; 319: if ($env{'user.keyedlinkuri'}) { 320: my @keyeduris = split(/,/,$env{'user.keyedlinkuri'}); 321: unless (grep(/^\Q$deeplink\E$/,@keyeduris)) { 322: push(@keyeduris,$deeplink); 323: &Apache::lonnet::appenv({'user.keyedlinkuri' => join(',',sort(@keyeduris))}); 324: } 325: } else { 326: &Apache::lonnet::appenv({'user.keyedlinkuri' => $deeplink}); 327: } 328: } 329: } 330: if ($env{'form.ltoken'}) { 331: my $delete = &Apache::lonnet::tmpdel($env{'form.ltoken'}); 332: } 333: $r->print( 334: $start_page 335: .'<p class="LC_warning">'.&mt('You are already logged in!').'</p>' 336: .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].', 337: '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>' 338: .$end_page 339: ); 340: return OK; 341: } 342: 343: # ---------------------------------------------------- No valid token, continue 344: 345: # ---------------------------- Not possible to really login to domain "public" 346: if ($env{'form.domain'} eq 'public') { 347: $env{'form.domain'}=''; 348: $env{'form.username'}=''; 349: } 350: 351: # ------ Is this page requested because /adm/migrateuser detected an IP change? 352: my %sessiondata; 353: if ($env{'form.iptoken'}) { 354: %sessiondata = &Apache::lonnet::tmpget($env{'form.iptoken'}); 355: unless ($sessiondata{'sessionserver'}) { 356: my $delete = &Apache::lonnet::tmpdel($env{'form.iptoken'}); 357: delete($env{'form.iptoken'}); 358: } 359: } 360: # ----------------------------------------------------------- Process Interface 361: $env{'form.interface'}=~s/\W//g; 362: 363: (undef,undef,undef,undef,undef,undef,my $clientmobile) = 364: &Apache::loncommon::decode_user_agent($r); 365: 366: my $iconpath= 367: &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL')); 368: 369: my $domain = &Apache::lonnet::default_login_domain(); 370: my $defdom = $domain; 371: if ($lonhost ne '') { 372: unless ($sessiondata{'sessionserver'}) { 373: my $redirect = &check_loginvia($domain,$lonhost,$lonidsdir,$balcookie); 374: if ($redirect) { 375: $r->print($redirect); 376: return OK; 377: } 378: } 379: } 380: 381: if (($sessiondata{'domain'}) && 382: (&Apache::lonnet::domain($sessiondata{'domain'},'description'))) { 383: $domain=$sessiondata{'domain'}; 384: } elsif (($env{'form.domain'}) && 385: (&Apache::lonnet::domain($env{'form.domain'},'description'))) { 386: $domain=$env{'form.domain'}; 387: } 388: 389: my $role = $r->dir_config('lonRole'); 390: my $loadlim = $r->dir_config('lonLoadLim'); 391: my $uloadlim= $r->dir_config('lonUserLoadLim'); 392: my $servadm = $r->dir_config('lonAdmEMail'); 393: my $tabdir = $r->dir_config('lonTabDir'); 394: my $include = $r->dir_config('lonIncludes'); 395: my $expire = $r->dir_config('lonExpire'); 396: my $version = $r->dir_config('lonVersion'); 397: my $host_name = &Apache::lonnet::hostname($lonhost); 398: 399: # --------------------------------------------- Default values for login fields 400: 401: my ($authusername,$authdomain); 402: if ($sessiondata{'username'}) { 403: $authusername=$sessiondata{'username'}; 404: } else { 405: $env{'form.username'} = &Apache::loncommon::cleanup_html($env{'form.username'}); 406: $authusername=($env{'form.username'}?$env{'form.username'}:''); 407: } 408: if ($sessiondata{'domain'}) { 409: $authdomain=$sessiondata{'domain'}; 410: } else { 411: $env{'form.domain'} = &Apache::loncommon::cleanup_html($env{'form.domain'}); 412: $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain); 413: } 414: 415: # ---------------------------------------------------------- Determine own load 416: my $loadavg; 417: { 418: my $loadfile=Apache::File->new('/proc/loadavg'); 419: $loadavg=<$loadfile>; 420: } 421: $loadavg =~ s/\s.*//g; 422: 423: my ($loadpercent,$userloadpercent); 424: if ($loadlim) { 425: $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim); 426: } 427: if ($uloadlim) { 428: $userloadpercent=&Apache::lonnet::userload(); 429: } 430: 431: my $firsturl= 432: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'}); 433: 434: # ----------------------------------------------------------- Get announcements 435: my $announcements=&Apache::lonnet::getannounce(); 436: # -------------------------------------------------------- Set login parameters 437: 438: my @hexstr=('0','1','2','3','4','5','6','7', 439: '8','9','a','b','c','d','e','f'); 440: my $lkey=''; 441: for (0..7) { 442: $lkey.=$hexstr[rand(15)]; 443: } 444: 445: my $ukey=''; 446: for (0..7) { 447: $ukey.=$hexstr[rand(15)]; 448: } 449: 450: my $lextkey=hex($lkey); 451: if ($lextkey>2147483647) { $lextkey-=4294967296; } 452: 453: my $uextkey=hex($ukey); 454: if ($uextkey>2147483647) { $uextkey-=4294967296; } 455: 456: # -------------------------------------------------------- Store away log token 457: my ($tokenextras,$tokentype,$linkprot_for_login); 458: my @names = ('role','symb','iptoken','ltoken','linkprotuser','linkprot','linkkey'); 459: foreach my $name (@names) { 460: if ($env{'form.'.$name} ne '') { 461: if ($name eq 'ltoken') { 462: my %info = &Apache::lonnet::tmpget($env{'form.'.$name}); 463: if ($info{'linkprot'}) { 464: $linkprot_for_login = $info{'linkprot'}; 465: $tokenextras .= '&linkprot='.&escape($info{'linkprot'}); 466: if ($info{'linkprotuser'}) { 467: $tokenextras .= '&linkprotuser='.&escape($info{'linkprotuser'}); 468: } 469: $tokentype = 'link'; 470: last; 471: } 472: } else { 473: $tokenextras .= '&'.$name.'='.&escape($env{'form.'.$name}); 474: if (($name eq 'linkkey') || ($name eq 'linkprot')) { 475: if ((($env{'form.retry'}) || ($env{'form.sso'})) && 476: (!$env{'form.ltoken'}) && ($name eq 'linkprot')) { 477: $linkprot_for_login = $env{'form.linkprot'}; 478: } 479: $tokentype = 'link'; 480: } 481: } 482: } 483: } 484: if ($tokentype) { 485: $tokenextras .= ":$tokentype"; 486: } 487: my $logtoken=Apache::lonnet::reply( 488: 'tmpput:'.$ukey.$lkey.'&'.&escape($firsturl).$tokenextras, 489: $lonhost); 490: 491: # -- If we cannot talk to ourselves, or hostID does not map to a hostname 492: # we are in serious trouble 493: 494: if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) { 495: if ($logtoken eq 'no_such_host') { 496: &Apache::lonnet::logthis('No valid logtoken for log-in page -- unable to determine hostname for hostID: '.$lonhost.'. Check entry in hosts.tab'); 497: } 498: if ($env{'form.ltoken'}) { 499: &Apache::lonnet::tmpdel($env{'form.ltoken'}); 500: delete($env{'form.ltoken'}); 501: } 502: my $spares=''; 503: my (@sparehosts,%spareservers); 504: my $sparesref = &Apache::lonnet::this_host_spares($defdom); 505: if (ref($sparesref) eq 'HASH') { 506: foreach my $key (keys(%{$sparesref})) { 507: if (ref($sparesref->{$key}) eq 'ARRAY') { 508: my @sorted = sort { &Apache::lonnet::hostname($a) cmp 509: &Apache::lonnet::hostname($b); 510: } @{$sparesref->{$key}}; 511: if (@sorted) { 512: if ($key eq 'primary') { 513: unshift(@sparehosts,@sorted); 514: } elsif ($key eq 'default') { 515: push(@sparehosts,@sorted); 516: } 517: } 518: } 519: } 520: } 521: foreach my $hostid (@sparehosts) { 522: next if ($hostid eq $lonhost); 523: my $hostname = &Apache::lonnet::hostname($hostid); 524: next if (($hostname eq '') || ($spareservers{$hostname})); 525: $spareservers{$hostname} = 1; 526: my $protocol = $Apache::lonnet::protocol{$hostid}; 527: $protocol = 'http' if ($protocol ne 'https'); 528: $spares.='<br /><span style="font-size: larger;"><a href="'.$protocol.'://'. 529: $hostname. 530: '/adm/login?domain='.$authdomain.'">'. 531: $hostname.'</a>'. 532: ' '.&mt('(preferred)').'</span>'.$/; 533: } 534: if ($spares) { 535: $spares.= '<br />'; 536: } 537: my %all_hostnames = &Apache::lonnet::all_hostnames(); 538: foreach my $hostid (sort 539: { 540: &Apache::lonnet::hostname($a) cmp 541: &Apache::lonnet::hostname($b); 542: } 543: keys(%all_hostnames)) { 544: next if ($hostid eq $lonhost); 545: my $hostname = &Apache::lonnet::hostname($hostid); 546: next if (($hostname eq '') || ($spareservers{$hostname})); 547: $spareservers{$hostname} = 1; 548: my $protocol = $Apache::lonnet::protocol{$hostid}; 549: $protocol = 'http' if ($protocol ne 'https'); 550: $spares.='<br /><a href="'.$protocol.'://'. 551: $hostname. 552: '/adm/login?domain='.$authdomain.'">'. 553: $hostname.'</a>'; 554: } 555: $r->print( 556: '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">' 557: .'<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">' 558: .'<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>' 559: .&mt('The LearningOnline Network with CAPA') 560: .'</title></head>' 561: .'<body bgcolor="#FFFFFF">' 562: .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>' 563: .'<img src="/adm/lonKaputt/lonlogo_broken.gif" alt="broken icon" align="right" />' 564: .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>'); 565: if ($spares) { 566: $r->print('<p>'.&mt('Please attempt to login to one of the following servers:') 567: .'</p>' 568: .$spares); 569: } 570: $r->print('</body>' 571: .'</html>' 572: ); 573: return OK; 574: } 575: 576: # ----------------------------------------------- Apparently we are in business 577: $servadm=~s/\,/\<br \/\>/g; 578: 579: # ----------------------------------------------------------- Front page design 580: my $pgbg=&Apache::loncommon::designparm('login.pgbg',$domain); 581: my $font=&Apache::loncommon::designparm('login.font',$domain); 582: my $link=&Apache::loncommon::designparm('login.link',$domain); 583: my $vlink=&Apache::loncommon::designparm('login.vlink',$domain); 584: my $alink=&Apache::loncommon::designparm('login.alink',$domain); 585: my $mainbg=&Apache::loncommon::designparm('login.mainbg',$domain); 586: my $loginbox_bg=&Apache::loncommon::designparm('login.sidebg',$domain); 587: my $loginbox_header_bgcol=&Apache::loncommon::designparm('login.bgcol',$domain); 588: my $loginbox_header_textcol=&Apache::loncommon::designparm('login.textcol',$domain); 589: my $logo=&Apache::loncommon::designparm('login.logo',$domain); 590: my $img=&Apache::loncommon::designparm('login.img',$domain); 591: my $domainlogo=&Apache::loncommon::domainlogo($domain); 592: my $showbanner = 1; 593: my $showmainlogo = 1; 594: if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) { 595: $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain); 596: } 597: if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) { 598: $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain); 599: } 600: my $showadminmail; 601: my @possdoms = &Apache::lonnet::current_machine_domains(); 602: if (grep(/^\Q$domain\E$/,@possdoms)) { 603: $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain); 604: } 605: my $showcoursecat = 606: &Apache::loncommon::designparm('login.coursecatalog',$domain); 607: my $shownewuserlink = 608: &Apache::loncommon::designparm('login.newuser',$domain); 609: my $showhelpdesk = 610: &Apache::loncommon::designparm('login.helpdesk',$domain); 611: my $now=time; 612: my $js = (<<ENDSCRIPT); 613: 614: <script type="text/javascript" language="JavaScript"> 615: // <![CDATA[ 616: function send() 617: { 618: this.document.server.elements.uname.value 619: =this.document.client.elements.uname.value; 620: 621: this.document.server.elements.udom.value 622: =this.document.client.elements.udom.value; 623: 624: uextkey=this.document.client.elements.uextkey.value; 625: lextkey=this.document.client.elements.lextkey.value; 626: initkeys(); 627: 628: if(this.document.server.action.substr(0,5) === 'http:'){ 629: this.document.server.elements.upass0.value 630: =getCrypted(this.document.client.elements.upass$now.value); 631: } else { 632: this.document.server.elements.upass0.value 633: =this.document.client.elements.upass$now.value; 634: } 635: 636: this.document.client.elements.uname.value=''; 637: this.document.client.elements.upass$now.value=''; 638: 639: this.document.server.submit(); 640: return false; 641: } 642: 643: function enableInput() { 644: this.document.client.elements.upass$now.removeAttribute("readOnly"); 645: this.document.client.elements.uname.removeAttribute("readOnly"); 646: this.document.client.elements.udom.removeAttribute("readOnly"); 647: return; 648: } 649: 650: // ]]> 651: </script> 652: 653: ENDSCRIPT 654: 655: my ($lonhost_in_use,@hosts,%defaultdomconf,$saml_prefix,$saml_landing, 656: $samlssotext,$samlnonsso,$samlssoimg,$samlssoalt,$samlssourl,$samltooltip); 657: %defaultdomconf = &Apache::loncommon::get_domainconf($defdom); 658: @hosts = &Apache::lonnet::current_machine_ids(); 659: $lonhost_in_use = $lonhost; 660: if (@hosts > 1) { 661: foreach my $hostid (@hosts) { 662: if (&Apache::lonnet::host_domain($hostid) eq $defdom) { 663: $lonhost_in_use = $hostid; 664: last; 665: } 666: } 667: } 668: $saml_prefix = $defdom.'.login.saml_'; 669: if ($defaultdomconf{$saml_prefix.$lonhost_in_use}) { 670: $saml_landing = 1; 671: $samlssotext = $defaultdomconf{$saml_prefix.'text_'.$lonhost_in_use}; 672: $samlnonsso = $defaultdomconf{$saml_prefix.'notsso_'.$lonhost_in_use}; 673: $samlssoimg = $defaultdomconf{$saml_prefix.'img_'.$lonhost_in_use}; 674: $samlssoalt = $defaultdomconf{$saml_prefix.'alt_'.$lonhost_in_use}; 675: $samlssourl = $defaultdomconf{$saml_prefix.'url_'.$lonhost_in_use}; 676: $samltooltip = $defaultdomconf{$saml_prefix.'title_'.$lonhost_in_use}; 677: } 678: if ($saml_landing) { 679: if ($samlssotext eq '') { 680: $samlssotext = 'SSO Login'; 681: } 682: if ($samlnonsso eq '') { 683: $samlnonsso = 'Non-SSO Login'; 684: } 685: $js .= <<"ENDSAMLJS"; 686: 687: <script type="text/javascript"> 688: // <![CDATA[ 689: function toggleLClogin() { 690: if (document.getElementById('LC_standard_login')) { 691: if (document.getElementById('LC_standard_login').style.display == 'none') { 692: document.getElementById('LC_standard_login').style.display = 'inline-block'; 693: if (document.getElementById('LC_login_text')) { 694: document.getElementById('LC_login_text').innerHTML = '$samlnonsso'; 695: } 696: if ( document.client.uname ) { document.client.uname.focus(); } 697: if (document.getElementById('LC_SSO_login')) { 698: document.getElementById('LC_SSO_login').style.display = 'none'; 699: } 700: } else { 701: document.getElementById('LC_standard_login').style.display = 'none'; 702: if (document.getElementById('LC_login_text')) { 703: document.getElementById('LC_login_text').innerHTML = '$samlssotext'; 704: } 705: if (document.getElementById('LC_SSO_login')) { 706: document.getElementById('LC_SSO_login').style.display = 'inline-block'; 707: } 708: } 709: } 710: return; 711: } 712: 713: // ]]> 714: </script> 715: 716: ENDSAMLJS 717: } 718: 719: # --------------------------------------------------- Print login screen header 720: 721: my %add_entries = ( 722: bgcolor => "$mainbg", 723: text => "$font", 724: link => "$link", 725: vlink => "$vlink", 726: alink => "$alink", 727: onload => 'javascript:enableInput();',); 728: 729: my ($headextra,$headextra_exempt); 730: $headextra = $defaultdomconf{$defdom.'.login.headtag_'.$lonhost_in_use}; 731: $headextra_exempt = $defaultdomconf{$domain.'.login.headtag_exempt_'.$lonhost_in_use}; 732: if ($headextra) { 733: my $omitextra; 734: if ($headextra_exempt ne '') { 735: my @exempt = split(',',$headextra_exempt); 736: my $ip = &Apache::lonnet::get_requestor_ip(); 737: if (grep(/^\Q$ip\E$/,@exempt)) { 738: $omitextra = 1; 739: } 740: } 741: unless ($omitextra) { 742: my $confname = $defdom.'-domainconfig'; 743: if ($headextra =~ m{^\Q/res/$defdom/$confname/login/headtag/$lonhost_in_use/\E}) { 744: my $extra = &Apache::lonnet::getfile(&Apache::lonnet::filelocation("",$headextra)); 745: unless ($extra eq '-1') { 746: $js .= "\n".$extra."\n"; 747: } 748: } 749: } 750: } 751: 752: $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js, 753: { 'redirect' => [$expire,'/adm/roles'], 754: 'add_entries' => \%add_entries, 755: 'only_body' => 1,})); 756: 757: # ----------------------------------------------------------------------- Texts 758: 759: my %lt=&Apache::lonlocal::texthash( 760: 'un' => 'Username', 761: 'pw' => 'Password', 762: 'dom' => 'Domain', 763: 'perc' => 'percent', 764: 'load' => 'Server Load', 765: 'userload' => 'User Load', 766: 'catalog' => 'Course/Community Catalog', 767: 'log' => 'Log in', 768: 'help' => 'Log-in Help', 769: 'serv' => 'Server', 770: 'servadm' => 'Server Administration', 771: 'helpdesk' => 'Contact Helpdesk', 772: 'forgotpw' => 'Forgot password?', 773: 'newuser' => 'New User?', 774: 'change' => 'Change?', 775: ); 776: # -------------------------------------------------- Change password field name 777: 778: my $forgotpw = &forgotpwdisplay(%lt); 779: $forgotpw .= '<br />' if $forgotpw; 780: my $loginhelp = &Apache::lonauth::loginhelpdisplay($authdomain); 781: if ($loginhelp) { 782: $loginhelp = '<a href="'.$loginhelp.'">'.$lt{'help'}.'</a><br />'; 783: } 784: 785: # ---------------------------------------------------- Serve out DES JavaScript 786: { 787: my $jsh=Apache::File->new($include."/londes.js"); 788: $r->print(<$jsh>); 789: } 790: # ---------------------------------------------------------- Serve rest of page 791: 792: $r->print( 793: '<div class="LC_Box"' 794: .' style="margin:0 auto; padding:10px; width:90%; height: auto; background-color:#FFFFFF;">' 795: ); 796: 797: $r->print(<<ENDSERVERFORM); 798: <form name="server" action="/adm/authenticate" method="post" target="_top"> 799: <input type="hidden" name="logtoken" value="$logtoken" /> 800: <input type="hidden" name="serverid" value="$lonhost" /> 801: <input type="hidden" name="uname" value="" /> 802: <input type="hidden" name="upass0" value="" /> 803: <input type="hidden" name="udom" value="" /> 804: <input type="hidden" name="localpath" value="$env{'form.localpath'}" /> 805: <input type="hidden" name="localres" value="$env{'form.localres'}" /> 806: </form> 807: ENDSERVERFORM 808: my $coursecatalog; 809: if (($showcoursecat eq '') || ($showcoursecat)) { 810: $coursecatalog = &coursecatalog_link($lt{'catalog'}).'<br />'; 811: } 812: my $newuserlink; 813: if ($shownewuserlink) { 814: $newuserlink = &newuser_link($lt{'newuser'}).'<br />'; 815: } 816: my $logintitle = 817: '<h2 class="LC_hcell"' 818: .' style="background:'.$loginbox_header_bgcol.';' 819: .' color:'.$loginbox_header_textcol.'">' 820: .$lt{'log'} 821: .'</h2>'; 822: 823: my $noscript_warning='<noscript><span class="LC_warning"><b>' 824: .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.') 825: .'</b></span></noscript>'; 826: my $helpdeskscript; 827: my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail, 828: $authdomain,\$helpdeskscript, 829: $showhelpdesk,\@possdoms); 830: 831: my $mobileargs; 832: if ($clientmobile) { 833: $mobileargs = 'autocapitalize="off" autocorrect="off"'; 834: } 835: my $loginform=(<<LFORM); 836: <form name="client" action="" onsubmit="return(send())" id="lclogin"> 837: <input type="hidden" name="lextkey" value="$lextkey" /> 838: <input type="hidden" name="uextkey" value="$uextkey" /> 839: <b><label for="uname">$lt{'un'}</label>:</b><br /> 840: <input type="text" name="uname" id="uname" size="15" value="$authusername" readonly="readonly" $mobileargs /><br /> 841: <b><label for="upass$now">$lt{'pw'}</label>:</b><br /> 842: <input type="password" name="upass$now" id="upass$now" size="15" readonly="readonly" /><br /> 843: <b><label for="udom">$lt{'dom'}</label>:</b><br /> 844: <input type="text" name="udom" id="udom" size="15" value="$authdomain" readonly="readonly" $mobileargs /><br /> 845: <input type="submit" value="$lt{'log'}" /> 846: </form> 847: LFORM 848: 849: if ($showbanner) { 850: my $alttext = &Apache::loncommon::designparm('login.alttext_img',$domain); 851: if ($alttext eq '') { 852: $alttext = 'The Learning Online Network with CAPA'; 853: } 854: $r->print(<<HEADER); 855:  856: <div style="background:$pgbg;margin:0;width:100%;"> 857: <img src="$img" border="0" alt="$alttext" class="LC_maxwidth" id="lcloginbanner" /> 858: </div> 859: HEADER 860: } 861: 862: my $stdauthformstyle = 'inline-block'; 863: my $ssoauthstyle = 'none'; 864: my $logintype; 865: $r->print('<div style="float:left;margin-top:0;">'); 866: if ($saml_landing) { 867: $ssoauthstyle = 'inline-block'; 868: $stdauthformstyle = 'none'; 869: $logintype = $samlssotext; 870: my $ssologin = '/adm/sso'; 871: if ($samlssourl ne '') { 872: $ssologin = $samlssourl; 873: } 874: if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) { 875: my $querystring; 876: if ($env{'form.firsturl'} ne '') { 877: $querystring = 'origurl='; 878: if ($env{'form.firsturl'} =~ /[^\x00-\xFF]/) { 879: $querystring .= &uri_escape_utf8($env{'form.firsturl'}); 880: } else { 881: $querystring .= &uri_escape($env{'form.firsturl'}); 882: } 883: $querystring = &HTML::Entities::encode($querystring,"'"); 884: } 885: if ($env{'form.ltoken'} ne '') { 886: $querystring .= (($querystring eq '')?'':'&') . 'ltoken='. 887: &HTML::Entities::encode(&uri_escape($env{'form.ltoken'})); 888: } elsif ($env{'form.linkkey'}) { 889: $querystring .= (($querystring eq '')?'':'&') . 'linkkey='. 890: &HTML::Entities::encode(&uri_escape($env{'form.linkkey'})); 891: } 892: if ($querystring ne '') { 893: $ssologin .= (($ssologin=~/\?/)?'&':'?') . $querystring; 894: } 895: } elsif ($logtoken ne '') { 896: $ssologin .= (($ssologin=~/\?/)?'&':'?') . 'logtoken='.$logtoken; 897: } 898: my $ssohref; 899: if ($samlssoimg ne '') { 900: $ssohref = '<a href="'.$ssologin.'" title="'.$samltooltip.'">'. 901: '<img src="'.$samlssoimg.'" alt="'.$samlssoalt.'" id="lcssobutton" /></a>'; 902: } else { 903: $ssohref = '<a href="'.$ssologin.'">'.$samlssotext.'</a>'; 904: } 905: if (($env{'form.saml'} eq 'no') || 906: (($env{'form.username'} ne '') && ($env{'form.domain'} ne ''))) { 907: $ssoauthstyle = 'none'; 908: $stdauthformstyle = 'inline-block'; 909: $logintype = $samlnonsso; 910: } 911: $r->print(<<ENDSAML); 912: <p> 913: Log-in type: 914: <span style="font-weight:bold" id="LC_login_text">$logintype</span><br /> 915: <span><a href="javascript:toggleLClogin();" style="color:#000000">$lt{'change'}</a></span> 916: </p> 917: <div style="display:$ssoauthstyle" id="LC_SSO_login"> 918: <div class="LC_Box" style="padding-top: 10px;"> 919: $ssohref 920: $noscript_warning 921: </div> 922: <div class="LC_Box" style="padding-top: 10px;"> 923: $loginhelp 924: $contactblock 925: $coursecatalog 926: </div> 927: </div> 928: ENDSAML 929: } else { 930: if ($env{'form.ltoken'}) { 931: &Apache::lonnet::tmpdel($env{'form.ltoken'}); 932: delete($env{'form.ltoken'}); 933: } 934: } 935: my $in_frame_js; 936: if ($linkprot_for_login) { 937: my ($linkprotector,$linkproturi) = split(/:/,$linkprot_for_login,2); 938: if (($linkprotector =~ /^\d+(c|d)$/) && ($linkproturi =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$})) { 939: my $set_target; 940: if (($env{'form.retry'}) || ($env{'form.sso'})) { 941: if ($linkproturi eq $env{'form.firsturl'}) { 942: $set_target = " document.server.target = '_self';"; 943: } 944: } else { 945: $set_target = <<ENDTARG; 946: var linkproturi = '$linkproturi'; 947: var path = document.location.pathname.replace( new RegExp('^/adm/launch'),''); 948: if (linkproturi == path) { 949: document.server.target = '_self'; 950: } 951: ENDTARG 952: } 953: $in_frame_js = <<ENDJS; 954: <script type="text/javascript"> 955: // <![CDATA[ 956: if ((window.self !== window.top) && (document.server.target != '_self')) { 957: $set_target 958: } 959: // ]]> 960: </script> 961: ENDJS 962: } 963: } 964: 965: $r->print(<<ENDLOGIN); 966: <div style="display:$stdauthformstyle;" id="LC_standard_login"> 967: <div class="LC_Box" style="background:$loginbox_bg;"> 968: $logintitle 969: $loginform 970: $noscript_warning 971: </div> 972: 973: <div class="LC_Box" style="padding-top: 10px;"> 974: $loginhelp 975: $forgotpw 976: $contactblock 977: $newuserlink 978: $coursecatalog 979: </div> 980: </div> 981: 982: ENDLOGIN 983: $r->print('</div><div>'."\n"); 984: if ($showmainlogo) { 985: my $alttext = &Apache::loncommon::designparm('login.alttext_logo',$domain); 986: $r->print(' <img src="'.$logo.'" alt="'.$alttext.'" class="LC_maxwidth" id="lcloginmainlogo" />'."\n"); 987: } 988: $r->print(<<ENDTOP); 989: $announcements 990: </div> 991: <hr style="clear:both;" /> 992: ENDTOP 993: my ($domainrow,$serverrow,$loadrow,$userloadrow,$versionrow); 994: $domainrow = <<"END"; 995: <tr> 996: <td align="left" valign="top"> 997: <small><b>$lt{'dom'}: </b></small> 998: </td> 999: <td align="left" valign="top"> 1000: <small><tt> $domain</tt></small> 1001: </td> 1002: </tr> 1003: END 1004: $serverrow = <<"END"; 1005: <tr> 1006: <td align="left" valign="top"> 1007: <small><b>$lt{'serv'}: </b></small> 1008: </td> 1009: <td align="left" valign="top"> 1010: <small><tt> $lonhost ($role)</tt></small> 1011: </td> 1012: </tr> 1013: END 1014: if ($loadlim) { 1015: $loadrow = <<"END"; 1016: <tr> 1017: <td align="left" valign="top"> 1018: <small><b>$lt{'load'}: </b></small> 1019: </td> 1020: <td align="left" valign="top"> 1021: <small><tt> $loadpercent $lt{'perc'}</tt></small> 1022: </td> 1023: </tr> 1024: END 1025: } 1026: if ($uloadlim) { 1027: $userloadrow = <<"END"; 1028: <tr> 1029: <td align="left" valign="top"> 1030: <small><b>$lt{'userload'}: </b></small> 1031: </td> 1032: <td align="left" valign="top"> 1033: <small><tt> $userloadpercent $lt{'perc'}</tt></small> 1034: </td> 1035: </tr> 1036: END 1037: } 1038: if (($version ne '') && ($version ne '')) { 1039: $versionrow = <<"END"; 1040: <tr> 1041: <td colspan="2" align="left"> 1042: <small>$version</small> 1043: </td> 1044: </tr> 1045: END 1046: } 1047: 1048: $r->print(<<ENDDOCUMENT); 1049: <div style="float: left;"> 1050: <table border="0" cellspacing="0" cellpadding="0"> 1051: $domainrow 1052: $serverrow 1053: $loadrow 1054: $userloadrow 1055: $versionrow 1056: </table> 1057: </div> 1058: <div style="float: right;"> 1059: $domainlogo 1060: </div> 1061: <br style="clear:both;" /> 1062: </div> 1063: 1064: $in_frame_js 1065: <script type="text/javascript"> 1066: // <![CDATA[ 1067: // the if prevents the script error if the browser can not handle this 1068: if ( document.client.uname ) { document.client.uname.focus(); } 1069: // ]]> 1070: </script> 1071: $helpdeskscript 1072: 1073: ENDDOCUMENT 1074: my %endargs = ( 'noredirectlink' => 1, ); 1075: $r->print(&Apache::loncommon::end_page(\%endargs)); 1076: return OK; 1077: } 1078: 1079: sub check_loginvia { 1080: my ($domain,$lonhost,$lonidsdir,$balcookie) = @_; 1081: if ($domain eq '' || $lonhost eq '' || $lonidsdir eq '') { 1082: return; 1083: } 1084: my %domconfhash = &Apache::loncommon::get_domainconf($domain); 1085: my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost}; 1086: my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost}; 1087: my $output; 1088: if ($loginvia ne '') { 1089: my $noredirect; 1090: my $ip = &Apache::lonnet::get_requestor_ip(); 1091: if ($ip eq '127.0.0.1') { 1092: $noredirect = 1; 1093: } else { 1094: if ($loginvia_exempt ne '') { 1095: my @exempt = split(',',$loginvia_exempt); 1096: if (grep(/^\Q$ip\E$/,@exempt)) { 1097: $noredirect = 1; 1098: } 1099: } 1100: } 1101: unless ($noredirect) { 1102: my ($newhost,$path); 1103: if ($loginvia =~ /:/) { 1104: ($newhost,$path) = split(':',$loginvia); 1105: } else { 1106: $newhost = $loginvia; 1107: } 1108: if ($newhost ne $lonhost) { 1109: if (&Apache::lonnet::hostname($newhost) ne '') { 1110: if ($balcookie) { 1111: my ($balancer,$cookie) = split(/:/,$balcookie); 1112: if ($cookie =~ /^($match_domain)_($match_username)_([a-f0-9]+)$/) { 1113: my ($udom,$uname,$cookieid) = ($1,$2,$3); 1114: unless (&Apache::lonnet::delbalcookie($cookie,$balancer) eq 'ok') { 1115: if ((-d $lonidsdir) && (opendir(my $dh,$lonidsdir))) { 1116: while (my $filename=readdir($dh)) { 1117: if ($filename=~/^(\Q$uname\E_\d+_\Q$udom\E_$match_lonid)\.id$/) { 1118: my $handle = $1; 1119: my %hash = 1120: &Apache::lonnet::get_sessionfile_vars($handle,$lonidsdir, 1121: ['request.balancercookie', 1122: 'user.linkedenv']); 1123: if ($hash{'request.balancercookie'} eq "$balancer:$cookieid") { 1124: if (unlink("$lonidsdir/$filename")) { 1125: if (($hash{'user.linkedenv'} =~ /^[a-f0-9]+_linked$/) && 1126: (-l "$lonidsdir/$hash{'user.linkedenv'}.id") && 1127: (readlink("$lonidsdir/$hash{'user.linkedenv'}.id") eq "$lonidsdir/$filename")) { 1128: unlink("$lonidsdir/$hash{'user.linkedenv'}.id"); 1129: } 1130: } 1131: } 1132: last; 1133: } 1134: } 1135: closedir($dh); 1136: } 1137: } 1138: } 1139: } 1140: $output = &redirect_page($newhost,$path); 1141: } 1142: } 1143: } 1144: } 1145: return $output; 1146: } 1147: 1148: sub redirect_page { 1149: my ($desthost,$path) = @_; 1150: my $hostname = &Apache::lonnet::hostname($desthost); 1151: my $protocol = $Apache::lonnet::protocol{$desthost}; 1152: $protocol = 'http' if ($protocol ne 'https'); 1153: unless ($path =~ m{^/}) { 1154: $path = '/'.$path; 1155: } 1156: my $url = $protocol.'://'.$hostname.$path; 1157: my $args = {}; 1158: if ($env{'form.firsturl'} =~ m{^/tiny/$match_domain/\w+$}) { 1159: $url = $protocol.'://'.$hostname.$env{'form.firsturl'}; 1160: if (($env{'form.ltoken'}) || ($env{'form.linkprot'} ne '') || 1161: ($env{'form.linkkey'} ne '')) { 1162: my %link_info; 1163: if ($env{'form.ltoken'}) { 1164: %link_info = &Apache::lonnet::tmpget($env{'form.ltoken'}); 1165: &Apache::lonnet::tmpdel($env{'form.ltoken'}); 1166: $args->{'only_body'} = 1; 1167: } elsif ($env{'form.linkprot'}) { 1168: $link_info{'linkprot'} = $env{'form.linkprot'}; 1169: if ($env{'form.linkprotuser'}) { 1170: $link_info{'linkprotuser'} = $env{'form.linkprotuser'}; 1171: } 1172: $args->{'only_body'} = 1; 1173: } elsif ($env{'form.linkkey'} ne '') { 1174: $link_info{'linkkey'} = $env{'form.linkkey'}; 1175: } 1176: my $token = &Apache::lonnet::tmpput(\%link_info,$desthost,'link'); 1177: unless (($token eq 'con_lost') || ($token eq 'refused') || 1178: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) { 1179: $url .= '?ltoken='.$token; 1180: } 1181: } 1182: } else { 1183: my $querystring; 1184: if ($env{'form.firsturl'} ne '') { 1185: if ($env{'form.firsturl'} =~ /[^\x00-\xFF]/) { 1186: $querystring = &uri_escape_utf8($env{'form.firsturl'}); 1187: } else { 1188: $querystring = &uri_escape($env{'form.firsturl'}); 1189: } 1190: $querystring = &HTML::Entities::encode($querystring,"'"); 1191: $querystring = '?firsturl='.$querystring; 1192: } 1193: if ($env{'form.ltoken'}) { 1194: my %link_info = &Apache::lonnet::tmpget($env{'form.ltoken'}); 1195: &Apache::lonnet::tmpdel($env{'form.ltoken'}); 1196: my $token = &Apache::lonnet::tmpput(\%link_info,$desthost,'link'); 1197: unless (($token eq 'con_lost') || ($token eq 'refused') || ($token =~ /^error:/) || 1198: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) { 1199: unless (($path eq '/adm/roles') || ($path eq '/adm/login')) { 1200: $url = $protocol.'://'.$hostname.'/adm/roles'; 1201: } 1202: $querystring .= (($querystring =~/^\?/)?'&':'?') . 'ttoken='.$token; 1203: } 1204: } 1205: $url .= $querystring; 1206: } 1207: $args->{'redirect'} = [0,$url]; 1208: my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef,$args); 1209: my $end_page = &Apache::loncommon::end_page(); 1210: return $start_page.$end_page; 1211: } 1212: 1213: sub contactdisplay { 1214: my ($lt,$servadm,$showadminmail,$authdomain,$helpdeskscript,$showhelpdesk, 1215: $possdoms) = @_; 1216: my $contactblock; 1217: my $origmail; 1218: if (ref($possdoms) eq 'ARRAY') { 1219: if (grep(/^\Q$authdomain\E$/,@{$possdoms})) { 1220: $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'}; 1221: } 1222: } 1223: my $requestmail = 1224: &Apache::loncommon::build_recipient_list(undef,'helpdeskmail', 1225: $authdomain,$origmail); 1226: unless ($showhelpdesk eq '0') { 1227: if ($requestmail =~ m/[^\@]+\@[^\@]+/) { 1228: $showhelpdesk = 1; 1229: } else { 1230: $showhelpdesk = 0; 1231: } 1232: } 1233: if ($servadm && $showadminmail) { 1234: $contactblock .= $$lt{'servadm'}.':<br />'. 1235: '<tt>'.$servadm.'</tt><br />'; 1236: } 1237: if ($showhelpdesk) { 1238: $contactblock .= '<a href="javascript:helpdesk()">'.$lt->{'helpdesk'}.'</a><br />'; 1239: my $thisurl = &escape('/adm/login'); 1240: $$helpdeskscript = <<"ENDSCRIPT"; 1241: <script type="text/javascript"> 1242: // <![CDATA[ 1243: function helpdesk() { 1244: var possdom = document.client.udom.value; 1245: var codedom = possdom.replace( new RegExp("[^A-Za-z0-9.\\-]","g"),''); 1246: if (codedom == '') { 1247: codedom = "$authdomain"; 1248: } 1249: var querystr = "origurl=$thisurl&codedom="+codedom; 1250: document.location.href = "/adm/helpdesk?"+querystr; 1251: return; 1252: } 1253: // ]]> 1254: </script> 1255: ENDSCRIPT 1256: } 1257: return $contactblock; 1258: } 1259: 1260: sub forgotpwdisplay { 1261: my (%lt) = @_; 1262: my $prompt_for_resetpw = 1; 1263: if ($prompt_for_resetpw) { 1264: return '<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a>'; 1265: } 1266: return; 1267: } 1268: 1269: sub coursecatalog_link { 1270: my ($linkname) = @_; 1271: return <<"END"; 1272: <a href="/adm/coursecatalog">$linkname</a> 1273: END 1274: } 1275: 1276: sub newuser_link { 1277: my ($linkname) = @_; 1278: return '<a href="/adm/createaccount">'.$linkname.'</a>'; 1279: } 1280: 1281: sub decode_token { 1282: my ($info) = @_; 1283: my ($firsturl,@rest)=split(/\&/,$info); 1284: my %form; 1285: if ($firsturl ne '') { 1286: $form{'firsturl'} = &unescape($firsturl); 1287: } 1288: foreach my $item (@rest) { 1289: my ($key,$value) = split(/=/,$item); 1290: $form{$key} = &unescape($value); 1291: } 1292: return %form; 1293: } 1294: 1295: 1; 1296: __END__