loncom/auth/lonlogin.pm - view

File: [LON-CAPA] / loncom / auth / lonlogin.pm
Revision 1.177: download - view: text, annotated - select for diffs
Wed Dec 26 20:10:21 2018 UTC (5 years, 5 months ago) by raeburn
Branches: MAIN
CVS tags: HEAD

- Bug 6400 Deep-linking
  - URLs like /adm/lti/tiny/domain/uniqueID can be used to restrict use of
    deep links to access from another LTI-enabled application (no user data
    passed in this context).

1: # The LearningOnline Network 2: # Login Screen 3: # 4: # $Id: lonlogin.pm,v 1.177 2018/12/26 20:10:21 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 CGI::Cookie(); 42: 43: sub handler { 44: my $r = shift; 45: 46: &Apache::loncommon::get_unprocessed_cgi 47: (join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'}, 48: $ENV{'REDIRECT_QUERY_STRING'}), 49: ['interface','username','domain','firsturl','localpath','localres', 50: 'token','role','symb','iptoken','btoken','ltoken']); 51: if (!defined($env{'form.firsturl'})) { 52: &Apache::lonacc::get_posted_cgi($r,['firsturl']); 53: } 54: if (!defined($env{'form.firsturl'})) { 55: if ($ENV{'REDIRECT_URL'} =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$}) { 56: $env{'form.firsturl'} = $ENV{'REDIRECT_URL'}; 57: } 58: } 59: 60: # -- check if they are a migrating user 61: if (defined($env{'form.token'})) { 62: return &Apache::migrateuser::handler($r); 63: } 64: 65: # For "public user" - remove any exising "public" cookie, as user really wants to log-in 66: my ($handle,$lonidsdir,$expirepub,$userdom); 67: $lonidsdir=$r->dir_config('lonIDsDir'); 68: unless ($r->header_only) { 69: $handle = &Apache::lonnet::check_for_valid_session($r,'lonID',undef,\$userdom); 70: if ($handle ne '') { 71: if ($handle=~/^publicuser\_/) { 72: unlink($r->dir_config('lonIDsDir')."/$handle.id"); 73: undef($handle); 74: undef($userdom); 75: $expirepub = 1; 76: } 77: } 78: } 79: 80: &Apache::loncommon::no_cache($r); 81: &Apache::lonlocal::get_language_handle($r); 82: &Apache::loncommon::content_type($r,'text/html'); 83: if ($expirepub) { 84: my $c = new CGI::Cookie(-name => 'lonPubID', 85: -value => '', 86: -expires => '-10y',); 87: $r->header_out('Set-cookie' => $c); 88: } elsif (($handle eq '') && ($userdom ne '')) { 89: my %cookies=CGI::Cookie->parse($r->header_in('Cookie')); 90: foreach my $name (keys(%cookies)) { 91: next unless ($name =~ /^lon(|S|Link|Pub)ID$/); 92: my $c = new CGI::Cookie(-name => $name, 93: -value => '', 94: -expires => '-10y',); 95: $r->headers_out->add('Set-cookie' => $c); 96: } 97: } 98: $r->send_http_header; 99: return OK if $r->header_only; 100: 101: 102: # Are we re-routing? 103: my $londocroot = $r->dir_config('lonDocRoot'); 104: if (-e "$londocroot/lon-status/reroute.txt") { 105: &Apache::lonauth::reroute($r); 106: return OK; 107: } 108: 109: my $lonhost = $r->dir_config('lonHostID'); 110: $env{'form.firsturl'} =~ s/(`)/'/g; 111: 112: # Check if browser sent a LON-CAPA load balancer cookie (and this is a balancer) 113: 114: my ($found_server,$balancer_cookie) = &Apache::lonnet::check_for_balancer_cookie($r,1); 115: if ($found_server) { 116: my $hostname = &Apache::lonnet::hostname($found_server); 117: if ($hostname ne '') { 118: my $protocol = $Apache::lonnet::protocol{$found_server}; 119: $protocol = 'http' if ($protocol ne 'https'); 120: my $dest = '/adm/roles'; 121: if ($env{'form.firsturl'} ne '') { 122: $dest = $env{'form.firsturl'}; 123: } 124: my %info = ( 125: balcookie => $lonhost.':'.$balancer_cookie, 126: ); 127: if ($env{'form.ltoken'}) { 128: my %link_info = &Apache::lonnet::tmpget($env{'form.ltoken'}); 129: if ($link_info{'linkprot'}) { 130: $info{'linkprot'} = $link_info{'linkprot'}; 131: } 132: &Apache::lonnet::tmpdel($env{'form.ltoken'}); 133: delete($env{'form.ltoken'}); 134: } 135: my $balancer_token = &Apache::lonnet::tmpput(\%info,$found_server); 136: if ($balancer_token) { 137: $dest .= (($dest=~/\?/)?'&;':'?') . 'btoken='.$balancer_token; 138: } 139: my $url = $protocol.'://'.$hostname.$dest; 140: my $start_page = 141: &Apache::loncommon::start_page('Switching Server ...',undef, 142: {'redirect' => [0,$url],}); 143: my $end_page = &Apache::loncommon::end_page(); 144: $r->print($start_page.$end_page); 145: return OK; 146: } 147: } 148: 149: # 150: # Check if a LON-CAPA load balancer sent user here because user's browser sent 151: # it a balancer cookie for an active session on this server. 152: # 153: 154: my ($balcookie,$linkprot); 155: if ($env{'form.btoken'}) { 156: my %info = &Apache::lonnet::tmpget($env{'form.btoken'}); 157: $balcookie = $info{'balcookie'}; 158: if ($balcookie) { 159: if ($info{'linkprot'}) { 160: $linkprot = $info{'linkprot'}; 161: } 162: } 163: &Apache::lonnet::tmpdel($env{'form.btoken'}); 164: delete($env{'form.btoken'}); 165: } 166: 167: # 168: # If browser sent an old cookie for which the session file had been removed 169: # check if configuration for user's domain has a portal URL set. If so 170: # switch user's log-in to the portal. 171: # 172: 173: if (($handle eq '') && ($userdom ne '')) { 174: my %domdefaults = &Apache::lonnet::get_domain_defaults($userdom); 175: if ($domdefaults{'portal_def'} =~ /^https?\:/) { 176: my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef, 177: {'redirect' => [0,$domdefaults{'portal_def'}],}); 178: my $end_page = &Apache::loncommon::end_page(); 179: $r->print($start_page.$end_page); 180: return OK; 181: } 182: } 183: 184: # -------------------------------- Prevent users from attempting to login twice 185: if ($handle ne '') { 186: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle); 187: my $start_page = 188: &Apache::loncommon::start_page('Already logged in'); 189: my $end_page = 190: &Apache::loncommon::end_page(); 191: my $dest = '/adm/roles'; 192: if ($env{'form.firsturl'} ne '') { 193: $dest = $env{'form.firsturl'}; 194: } 195: if (($env{'form.ltoken'}) || ($linkprot)) { 196: unless ($linkprot) { 197: my %info = &Apache::lonnet::tmpget($env{'form.ltoken'}); 198: $linkprot = $info{'linkprot'}; 199: my $delete = &Apache::lonnet::tmpdel($env{'form.ltoken'}); 200: delete($env{'form.ltoken'}); 201: } 202: if ($linkprot) { 203: my ($linkprotector,$deeplink) = split(/:/,$linkprot,2); 204: if ($env{'user.linkprotector'}) { 205: my @protectors = split(/,/,$env{'user.linkprotector'}); 206: unless (grep(/^\Q$linkprotector\E$/,@protectors)) { 207: push(@protectors,$linkprotector); 208: @protectors = sort { $a <=> $b } @protectors; 209: &Apache::lonnet::appenv({'user.linkprotector' => join(',',@protectors)}); 210: } 211: } else { 212: &Apache::lonnet::appenv({'user.linkprotector' => $linkprotector }); 213: } 214: if ($env{'user.linkproturi'}) { 215: my @proturis = split(/,/,$env{'user.linkproturi'}); 216: unless(grep(/^\Q$deeplink\E$/,@proturis)) { 217: push(@proturis,$deeplink); 218: @proturis = sort @proturis; 219: &Apache::lonnet::appenv({'user.linkproturi' => join(',',@proturis)}); 220: } 221: } else { 222: &Apache::lonnet::appenv({'user.linkproturi' => $deeplink}); 223: } 224: } 225: } 226: $r->print( 227: $start_page 228: .'<p class="LC_warning">'.&mt('You are already logged in!').'</p>' 229: .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].', 230: '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>' 231: .$end_page 232: ); 233: return OK; 234: } 235: 236: # ---------------------------------------------------- No valid token, continue 237: 238: # ---------------------------- Not possible to really login to domain "public" 239: if ($env{'form.domain'} eq 'public') { 240: $env{'form.domain'}=''; 241: $env{'form.username'}=''; 242: } 243: 244: # ------ Is this page requested because /adm/migrateuser detected an IP change? 245: my %sessiondata; 246: if ($env{'form.iptoken'}) { 247: %sessiondata = &Apache::lonnet::tmpget($env{'form.iptoken'}); 248: unless ($sessiondata{'sessionserver'}) { 249: my $delete = &Apache::lonnet::tmpdel($env{'form.iptoken'}); 250: delete($env{'form.iptoken'}); 251: } 252: } 253: # ----------------------------------------------------------- Process Interface 254: $env{'form.interface'}=~s/\W//g; 255: 256: (undef,undef,undef,undef,undef,undef,my $clientmobile) = 257: &Apache::loncommon::decode_user_agent(); 258: 259: my $iconpath= 260: &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL')); 261: 262: my $domain = &Apache::lonnet::default_login_domain(); 263: my $defdom = $domain; 264: if ($lonhost ne '') { 265: unless ($sessiondata{'sessionserver'}) { 266: my $redirect = &check_loginvia($domain,$lonhost,$lonidsdir,$balcookie,$linkprot); 267: if ($redirect) { 268: $r->print($redirect); 269: return OK; 270: } 271: } 272: } 273: 274: if (($sessiondata{'domain'}) && 275: (&Apache::lonnet::domain($sessiondata{'domain'},'description'))) { 276: $domain=$sessiondata{'domain'}; 277: } elsif (($env{'form.domain'}) && 278: (&Apache::lonnet::domain($env{'form.domain'},'description'))) { 279: $domain=$env{'form.domain'}; 280: } 281: 282: my $role = $r->dir_config('lonRole'); 283: my $loadlim = $r->dir_config('lonLoadLim'); 284: my $uloadlim= $r->dir_config('lonUserLoadLim'); 285: my $servadm = $r->dir_config('lonAdmEMail'); 286: my $tabdir = $r->dir_config('lonTabDir'); 287: my $include = $r->dir_config('lonIncludes'); 288: my $expire = $r->dir_config('lonExpire'); 289: my $version = $r->dir_config('lonVersion'); 290: my $host_name = &Apache::lonnet::hostname($lonhost); 291: 292: # --------------------------------------------- Default values for login fields 293: 294: my ($authusername,$authdomain); 295: if ($sessiondata{'username'}) { 296: $authusername=$sessiondata{'username'}; 297: } else { 298: $env{'form.username'} = &Apache::loncommon::cleanup_html($env{'form.username'}); 299: $authusername=($env{'form.username'}?$env{'form.username'}:''); 300: } 301: if ($sessiondata{'domain'}) { 302: $authdomain=$sessiondata{'domain'}; 303: } else { 304: $env{'form.domain'} = &Apache::loncommon::cleanup_html($env{'form.domain'}); 305: $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain); 306: } 307: 308: # ---------------------------------------------------------- Determine own load 309: my $loadavg; 310: { 311: my $loadfile=Apache::File->new('/proc/loadavg'); 312: $loadavg=<$loadfile>; 313: } 314: $loadavg =~ s/\s.*//g; 315: 316: my ($loadpercent,$userloadpercent); 317: if ($loadlim) { 318: $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim); 319: } 320: if ($uloadlim) { 321: $userloadpercent=&Apache::lonnet::userload(); 322: } 323: 324: my $firsturl= 325: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'}); 326: 327: # ----------------------------------------------------------- Get announcements 328: my $announcements=&Apache::lonnet::getannounce(); 329: # -------------------------------------------------------- Set login parameters 330: 331: my @hexstr=('0','1','2','3','4','5','6','7', 332: '8','9','a','b','c','d','e','f'); 333: my $lkey=''; 334: for (0..7) { 335: $lkey.=$hexstr[rand(15)]; 336: } 337: 338: my $ukey=''; 339: for (0..7) { 340: $ukey.=$hexstr[rand(15)]; 341: } 342: 343: my $lextkey=hex($lkey); 344: if ($lextkey>2147483647) { $lextkey-=4294967296; } 345: 346: my $uextkey=hex($ukey); 347: if ($uextkey>2147483647) { $uextkey-=4294967296; } 348: 349: # -------------------------------------------------------- Store away log token 350: my $tokenextras; 351: if ($env{'form.role'}) { 352: $tokenextras = '&role='.&escape($env{'form.role'}); 353: } 354: if ($env{'form.symb'}) { 355: if (!$tokenextras) { 356: $tokenextras = '&'; 357: } 358: $tokenextras .= '&symb='.&escape($env{'form.symb'}); 359: } 360: if ($env{'form.iptoken'}) { 361: if (!$tokenextras) { 362: $tokenextras = '&&'; 363: } 364: $tokenextras .= '&iptoken='.&escape($env{'form.iptoken'}); 365: } 366: if ($env{'form.ltoken'}) { 367: my %info = &Apache::lonnet::tmpget($env{'form.ltoken'}); 368: &Apache::lonnet::tmpdel($env{'form.ltoken'}); 369: delete($env{'form.ltoken'}); 370: if ($info{'linkprot'}) { 371: if (!$tokenextras) { 372: $tokenextras = '&&&'; 373: } 374: $tokenextras .= '&linkprot='.&escape($info{'linkprot'}); 375: } 376: } 377: my $logtoken=Apache::lonnet::reply( 378: 'tmpput:'.$ukey.$lkey.'&'.$firsturl.$tokenextras, 379: $lonhost); 380: 381: # -- If we cannot talk to ourselves, or hostID does not map to a hostname 382: # we are in serious trouble 383: 384: if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) { 385: if ($logtoken eq 'no_such_host') { 386: &Apache::lonnet::logthis('No valid logtoken for log-in page -- unable to determine hostname for hostID: '.$lonhost.'. Check entry in hosts.tab'); 387: } 388: my $spares=''; 389: my $last; 390: foreach my $hostid (sort 391: { 392: &Apache::lonnet::hostname($a) cmp 393: &Apache::lonnet::hostname($b); 394: } 395: keys(%Apache::lonnet::spareid)) { 396: next if ($hostid eq $lonhost); 397: my $hostname = &Apache::lonnet::hostname($hostid); 398: next if (($last eq $hostname) || ($hostname eq '')); 399: $spares.='<br /><font size="+1"><a href="http://'. 400: $hostname. 401: '/adm/login?domain='.$authdomain.'">'. 402: $hostname.'</a>'. 403: ' '.&mt('(preferred)').'</font>'.$/; 404: $last=$hostname; 405: } 406: if ($spares) { 407: $spares.= '<br />'; 408: } 409: my %all_hostnames = &Apache::lonnet::all_hostnames(); 410: foreach my $hostid (sort 411: { 412: &Apache::lonnet::hostname($a) cmp 413: &Apache::lonnet::hostname($b); 414: } 415: keys(%all_hostnames)) { 416: next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid}); 417: my $hostname = &Apache::lonnet::hostname($hostid); 418: next if (($last eq $hostname) || ($hostname eq '')); 419: $spares.='<br /><a href="http://'. 420: $hostname. 421: '/adm/login?domain='.$authdomain.'">'. 422: $hostname.'</a>'; 423: $last=$hostname; 424: } 425: $r->print( 426: '<html>' 427: .'<head><title>' 428: .&mt('The LearningOnline Network with CAPA') 429: .'</title></head>' 430: .'<body bgcolor="#FFFFFF">' 431: .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>' 432: .'<img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />' 433: .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>'); 434: if ($spares) { 435: $r->print('<p>'.&mt('Please attempt to login to one of the following servers:') 436: .'</p>' 437: .$spares); 438: } 439: $r->print('</body>' 440: .'</html>' 441: ); 442: return OK; 443: } 444: 445: # ----------------------------------------------- Apparently we are in business 446: $servadm=~s/\,/\<br \/\>/g; 447: 448: # ----------------------------------------------------------- Front page design 449: my $pgbg=&Apache::loncommon::designparm('login.pgbg',$domain); 450: my $font=&Apache::loncommon::designparm('login.font',$domain); 451: my $link=&Apache::loncommon::designparm('login.link',$domain); 452: my $vlink=&Apache::loncommon::designparm('login.vlink',$domain); 453: my $alink=&Apache::loncommon::designparm('login.alink',$domain); 454: my $mainbg=&Apache::loncommon::designparm('login.mainbg',$domain); 455: my $loginbox_bg=&Apache::loncommon::designparm('login.sidebg',$domain); 456: my $loginbox_header_bgcol=&Apache::loncommon::designparm('login.bgcol',$domain); 457: my $loginbox_header_textcol=&Apache::loncommon::designparm('login.textcol',$domain); 458: my $logo=&Apache::loncommon::designparm('login.logo',$domain); 459: my $img=&Apache::loncommon::designparm('login.img',$domain); 460: my $domainlogo=&Apache::loncommon::domainlogo($domain); 461: my $showbanner = 1; 462: my $showmainlogo = 1; 463: if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) { 464: $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain); 465: } 466: if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) { 467: $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain); 468: } 469: my $showadminmail; 470: my @possdoms = &Apache::lonnet::current_machine_domains(); 471: if (grep(/^\Q$domain\E$/,@possdoms)) { 472: $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain); 473: } 474: my $showcoursecat = 475: &Apache::loncommon::designparm('login.coursecatalog',$domain); 476: my $shownewuserlink = 477: &Apache::loncommon::designparm('login.newuser',$domain); 478: my $showhelpdesk = 479: &Apache::loncommon::designparm('login.helpdesk',$domain); 480: my $now=time; 481: my $js = (<<ENDSCRIPT); 482: 483: <script type="text/javascript" language="JavaScript"> 484: // <![CDATA[ 485: function send() 486: { 487: this.document.server.elements.uname.value 488: =this.document.client.elements.uname.value; 489: 490: this.document.server.elements.udom.value 491: =this.document.client.elements.udom.value; 492: 493: uextkey=this.document.client.elements.uextkey.value; 494: lextkey=this.document.client.elements.lextkey.value; 495: initkeys(); 496: 497: if(this.document.server.action.substr(0,5) === 'http:'){ 498: this.document.server.elements.upass0.value 499: =getCrypted(this.document.client.elements.upass$now.value); 500: } else { 501: this.document.server.elements.upass0.value 502: =this.document.client.elements.upass$now.value; 503: } 504: 505: this.document.client.elements.uname.value=''; 506: this.document.client.elements.upass$now.value=''; 507: 508: this.document.server.submit(); 509: return false; 510: } 511: 512: function enableInput() { 513: this.document.client.elements.upass$now.removeAttribute("readOnly"); 514: this.document.client.elements.uname.removeAttribute("readOnly"); 515: this.document.client.elements.udom.removeAttribute("readOnly"); 516: return; 517: } 518: 519: // ]]> 520: </script> 521: 522: ENDSCRIPT 523: 524: # --------------------------------------------------- Print login screen header 525: 526: my %add_entries = ( 527: bgcolor => "$mainbg", 528: text => "$font", 529: link => "$link", 530: vlink => "$vlink", 531: alink => "$alink", 532: onload => 'javascript:enableInput();',); 533: 534: my ($lonhost_in_use,$headextra,$headextra_exempt,@hosts,%defaultdomconf); 535: @hosts = &Apache::lonnet::current_machine_ids(); 536: $lonhost_in_use = $lonhost; 537: if (@hosts > 1) { 538: foreach my $hostid (@hosts) { 539: if (&Apache::lonnet::host_domain($hostid) eq $defdom) { 540: $lonhost_in_use = $hostid; 541: last; 542: } 543: } 544: } 545: %defaultdomconf = &Apache::loncommon::get_domainconf($defdom); 546: $headextra = $defaultdomconf{$defdom.'.login.headtag_'.$lonhost_in_use}; 547: $headextra_exempt = $defaultdomconf{$domain.'.login.headtag_exempt_'.$lonhost_in_use}; 548: if ($headextra) { 549: my $omitextra; 550: if ($headextra_exempt ne '') { 551: my @exempt = split(',',$headextra_exempt); 552: my $ip = $ENV{'REMOTE_ADDR'}; 553: if (grep(/^\Q$ip\E$/,@exempt)) { 554: $omitextra = 1; 555: } 556: } 557: unless ($omitextra) { 558: my $confname = $defdom.'-domainconfig'; 559: if ($headextra =~ m{^\Q/res/$defdom/$confname/login/headtag/$lonhost_in_use/\E}) { 560: my $extra = &Apache::lonnet::getfile(&Apache::lonnet::filelocation("",$headextra)); 561: unless ($extra eq '-1') { 562: $js .= "\n".$extra."\n"; 563: } 564: } 565: } 566: } 567: 568: $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js, 569: { 'redirect' => [$expire,'/adm/roles'], 570: 'add_entries' => \%add_entries, 571: 'only_body' => 1,})); 572: 573: # ----------------------------------------------------------------------- Texts 574: 575: my %lt=&Apache::lonlocal::texthash( 576: 'un' => 'Username', 577: 'pw' => 'Password', 578: 'dom' => 'Domain', 579: 'perc' => 'percent', 580: 'load' => 'Server Load', 581: 'userload' => 'User Load', 582: 'catalog' => 'Course/Community Catalog', 583: 'log' => 'Log in', 584: 'help' => 'Log-in Help', 585: 'serv' => 'Server', 586: 'servadm' => 'Server Administration', 587: 'helpdesk' => 'Contact Helpdesk', 588: 'forgotpw' => 'Forgot password?', 589: 'newuser' => 'New User?', 590: ); 591: # -------------------------------------------------- Change password field name 592: 593: my $forgotpw = &forgotpwdisplay(%lt); 594: $forgotpw .= '<br />' if $forgotpw; 595: my $loginhelp = &Apache::lonauth::loginhelpdisplay($authdomain); 596: if ($loginhelp) { 597: $loginhelp = '<a href="'.$loginhelp.'">'.$lt{'help'}.'</a><br />'; 598: } 599: 600: # ---------------------------------------------------- Serve out DES JavaScript 601: { 602: my $jsh=Apache::File->new($include."/londes.js"); 603: $r->print(<$jsh>); 604: } 605: # ---------------------------------------------------------- Serve rest of page 606: 607: $r->print( 608: '<div class="LC_Box"' 609: .' style="margin:0 auto; padding:10px; width:90%; height: auto; background-color:#FFFFFF;">' 610: ); 611: 612: $r->print(<<ENDSERVERFORM); 613: <form name="server" action="/adm/authenticate" method="post" target="_top"> 614: <input type="hidden" name="logtoken" value="$logtoken" /> 615: <input type="hidden" name="serverid" value="$lonhost" /> 616: <input type="hidden" name="uname" value="" /> 617: <input type="hidden" name="upass0" value="" /> 618: <input type="hidden" name="udom" value="" /> 619: <input type="hidden" name="localpath" value="$env{'form.localpath'}" /> 620: <input type="hidden" name="localres" value="$env{'form.localres'}" /> 621: </form> 622: ENDSERVERFORM 623: my $coursecatalog; 624: if (($showcoursecat eq '') || ($showcoursecat)) { 625: $coursecatalog = &coursecatalog_link($lt{'catalog'}).'<br />'; 626: } 627: my $newuserlink; 628: if ($shownewuserlink) { 629: $newuserlink = &newuser_link($lt{'newuser'}).'<br />'; 630: } 631: my $logintitle = 632: '<h2 class="LC_hcell"' 633: .' style="background:'.$loginbox_header_bgcol.';' 634: .' color:'.$loginbox_header_textcol.'">' 635: .$lt{'log'} 636: .'</h2>'; 637: 638: my $noscript_warning='<noscript><span class="LC_warning"><b>' 639: .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.') 640: .'</b></span></noscript>'; 641: my $helpdeskscript; 642: my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail, 643: $authdomain,\$helpdeskscript, 644: $showhelpdesk,\@possdoms); 645: 646: my $mobileargs; 647: if ($clientmobile) { 648: $mobileargs = 'autocapitalize="off" autocorrect="off"'; 649: } 650: my $loginform=(<<LFORM); 651: <form name="client" action="" onsubmit="return(send())"> 652: <input type="hidden" name="lextkey" value="$lextkey" /> 653: <input type="hidden" name="uextkey" value="$uextkey" /> 654: <b><label for="uname">$lt{'un'}</label>:</b><br /> 655: <input type="text" name="uname" id="uname" size="15" value="$authusername" readonly="readonly" $mobileargs /><br /> 656: <b><label for="upass$now">$lt{'pw'}</label>:</b><br /> 657: <input type="password" name="upass$now" id="upass$now" size="15" readonly="readonly" /><br /> 658: <b><label for="udom">$lt{'dom'}</label>:</b><br /> 659: <input type="text" name="udom" id="udom" size="15" value="$authdomain" readonly="readonly" $mobileargs /><br /> 660: <input type="submit" value="$lt{'log'}" /> 661: </form> 662: LFORM 663: 664: if ($showbanner) { 665: $r->print(<<HEADER); 666:  667: <div style="background:$pgbg;margin:0;width:100%;"> 668: <img src="$img" border="0" alt="The Learning Online Network with CAPA" class="LC_maxwidth" /> 669: </div> 670: HEADER 671: } 672: $r->print(<<ENDTOP); 673: <div style="float:left;margin-top:0;"> 674: <div class="LC_Box" style="background:$loginbox_bg;"> 675: $logintitle 676: $loginform 677: $noscript_warning 678: </div> 679: 680: <div class="LC_Box" style="padding-top: 10px;"> 681: $loginhelp 682: $forgotpw 683: $contactblock 684: $newuserlink 685: $coursecatalog 686: </div> 687: </div> 688: 689: <div> 690: ENDTOP 691: if ($showmainlogo) { 692: $r->print(' <img src="'.$logo.'" alt="" class="LC_maxwidth" />'."\n"); 693: } 694: $r->print(<<ENDTOP); 695: $announcements 696: </div> 697: <hr style="clear:both;" /> 698: ENDTOP 699: my ($domainrow,$serverrow,$loadrow,$userloadrow,$versionrow); 700: $domainrow = <<"END"; 701: <tr> 702: <td align="left" valign="top"> 703: <small><b>$lt{'dom'}: </b></small> 704: </td> 705: <td align="left" valign="top"> 706: <small><tt> $domain</tt></small> 707: </td> 708: </tr> 709: END 710: $serverrow = <<"END"; 711: <tr> 712: <td align="left" valign="top"> 713: <small><b>$lt{'serv'}: </b></small> 714: </td> 715: <td align="left" valign="top"> 716: <small><tt> $lonhost ($role)</tt></small> 717: </td> 718: </tr> 719: END 720: if ($loadlim) { 721: $loadrow = <<"END"; 722: <tr> 723: <td align="left" valign="top"> 724: <small><b>$lt{'load'}: </b></small> 725: </td> 726: <td align="left" valign="top"> 727: <small><tt> $loadpercent $lt{'perc'}</tt></small> 728: </td> 729: </tr> 730: END 731: } 732: if ($uloadlim) { 733: $userloadrow = <<"END"; 734: <tr> 735: <td align="left" valign="top"> 736: <small><b>$lt{'userload'}: </b></small> 737: </td> 738: <td align="left" valign="top"> 739: <small><tt> $userloadpercent $lt{'perc'}</tt></small> 740: </td> 741: </tr> 742: END 743: } 744: if (($version ne '') && ($version ne '')) { 745: $versionrow = <<"END"; 746: <tr> 747: <td colspan="2" align="left"> 748: <small>$version</small> 749: </td> 750: </tr> 751: END 752: } 753: 754: $r->print(<<ENDDOCUMENT); 755: <div style="float: left;"> 756: <table border="0" cellspacing="0" cellpadding="0"> 757: $domainrow 758: $serverrow 759: $loadrow 760: $userloadrow 761: $versionrow 762: </table> 763: </div> 764: <div style="float: right;"> 765: $domainlogo 766: </div> 767: <br style="clear:both;" /> 768: </div> 769: 770: <script type="text/javascript"> 771: // <![CDATA[ 772: // the if prevents the script error if the browser can not handle this 773: if ( document.client.uname ) { document.client.uname.focus(); } 774: // ]]> 775: </script> 776: $helpdeskscript 777: 778: ENDDOCUMENT 779: my %endargs = ( 'noredirectlink' => 1, ); 780: $r->print(&Apache::loncommon::end_page(\%endargs)); 781: return OK; 782: } 783: 784: sub check_loginvia { 785: my ($domain,$lonhost,$lonidsdir,$balcookie,$linkprot) = @_; 786: if ($domain eq '' || $lonhost eq '' || $lonidsdir eq '') { 787: return; 788: } 789: my %domconfhash = &Apache::loncommon::get_domainconf($domain); 790: my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost}; 791: my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost}; 792: my $output; 793: if ($loginvia ne '') { 794: my $noredirect; 795: my $ip = $ENV{'REMOTE_ADDR'}; 796: if ($ip eq '127.0.0.1') { 797: $noredirect = 1; 798: } else { 799: if ($loginvia_exempt ne '') { 800: my @exempt = split(',',$loginvia_exempt); 801: if (grep(/^\Q$ip\E$/,@exempt)) { 802: $noredirect = 1; 803: } 804: } 805: } 806: unless ($noredirect) { 807: my ($newhost,$path); 808: if ($loginvia =~ /:/) { 809: ($newhost,$path) = split(':',$loginvia); 810: } else { 811: $newhost = $loginvia; 812: } 813: if ($newhost ne $lonhost) { 814: if (&Apache::lonnet::hostname($newhost) ne '') { 815: if ($balcookie) { 816: my ($balancer,$cookie) = split(/:/,$balcookie); 817: if ($cookie =~ /^($match_domain)_($match_username)_([a-f0-9]+)$/) { 818: my ($udom,$uname,$cookieid) = ($1,$2,$3); 819: unless (&Apache::lonnet::delbalcookie($cookie,$balancer) eq 'ok') { 820: if ((-d $lonidsdir) && (opendir(my $dh,$lonidsdir))) { 821: while (my $filename=readdir($dh)) { 822: if ($filename=~/^(\Q$uname\E_\d+_\Q$udom\E_$match_lonid)\.id$/) { 823: my $handle = $1; 824: my %hash = 825: &Apache::lonnet::get_sessionfile_vars($handle,$lonidsdir, 826: ['request.balancercookie', 827: 'user.linkedenv']); 828: if ($hash{'request.balancercookie'} eq "$balancer:$cookieid") { 829: if (unlink("$lonidsdir/$filename")) { 830: if (($hash{'user.linkedenv'} =~ /^[a-f0-9]+_linked$/) && 831: (-l "$lonidsdir/$hash{'user.linkedenv'}.id") && 832: (readlink("$lonidsdir/$hash{'user.linkedenv'}.id") eq "$lonidsdir/$filename")) { 833: unlink("$lonidsdir/$hash{'user.linkedenv'}.id"); 834: } 835: } 836: } 837: last; 838: } 839: } 840: closedir($dh); 841: } 842: } 843: } 844: } 845: $output = &redirect_page($newhost,$path,$linkprot); 846: } 847: } 848: } 849: } 850: return $output; 851: } 852: 853: sub redirect_page { 854: my ($desthost,$path,$linkprot) = @_; 855: my $protocol = $Apache::lonnet::protocol{$desthost}; 856: $protocol = 'http' if ($protocol ne 'https'); 857: unless ($path =~ m{^/}) { 858: $path = '/'.$path; 859: } 860: my $url = $protocol.'://'.&Apache::lonnet::hostname($desthost).$path; 861: if ($env{'form.firsturl'} ne '') { 862: $url .='?firsturl='.$env{'form.firsturl'}; 863: } 864: if ($linkprot) { 865: my $ltoken = &Apache::lonnet::tmpput({linkprot => $linkprot},$desthost); 866: if ($ltoken) { 867: $url .= (($url =~ /\?/) ? '&' : '?').'ltoken='.$ltoken; 868: } 869: } 870: my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef, 871: {'redirect' => [0,$url],}); 872: my $end_page = &Apache::loncommon::end_page(); 873: return $start_page.$end_page; 874: } 875: 876: sub contactdisplay { 877: my ($lt,$servadm,$showadminmail,$authdomain,$helpdeskscript,$showhelpdesk, 878: $possdoms) = @_; 879: my $contactblock; 880: my $origmail; 881: if (ref($possdoms) eq 'ARRAY') { 882: if (grep(/^\Q$authdomain\E$/,@{$possdoms})) { 883: $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'}; 884: } 885: } 886: my $requestmail = 887: &Apache::loncommon::build_recipient_list(undef,'helpdeskmail', 888: $authdomain,$origmail); 889: unless ($showhelpdesk eq '0') { 890: if ($requestmail =~ m/[^\@]+\@[^\@]+/) { 891: $showhelpdesk = 1; 892: } else { 893: $showhelpdesk = 0; 894: } 895: } 896: if ($servadm && $showadminmail) { 897: $contactblock .= $$lt{'servadm'}.':<br />'. 898: '<tt>'.$servadm.'</tt><br />'; 899: } 900: if ($showhelpdesk) { 901: $contactblock .= '<a href="javascript:helpdesk()">'.$lt->{'helpdesk'}.'</a><br />'; 902: my $thisurl = &escape('/adm/login'); 903: $$helpdeskscript = <<"ENDSCRIPT"; 904: <script type="text/javascript"> 905: // <![CDATA[ 906: function helpdesk() { 907: var possdom = document.client.udom.value; 908: var codedom = possdom.replace( new RegExp("[^A-Za-z0-9.\\-]","g"),''); 909: if (codedom == '') { 910: codedom = "$authdomain"; 911: } 912: var querystr = "origurl=$thisurl&codedom="+codedom; 913: document.location.href = "/adm/helpdesk?"+querystr; 914: return; 915: } 916: // ]]> 917: </script> 918: ENDSCRIPT 919: } 920: return $contactblock; 921: } 922: 923: sub forgotpwdisplay { 924: my (%lt) = @_; 925: my $prompt_for_resetpw = 1; 926: if ($prompt_for_resetpw) { 927: return '<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a>'; 928: } 929: return; 930: } 931: 932: sub coursecatalog_link { 933: my ($linkname) = @_; 934: return <<"END"; 935: <a href="/adm/coursecatalog">$linkname</a> 936: END 937: } 938: 939: sub newuser_link { 940: my ($linkname) = @_; 941: return '<a href="/adm/createaccount">'.$linkname.'</a>'; 942: } 943: 944: 1; 945: __END__