--- loncom/lond 2006/08/25 17:22:59 1.337 +++ loncom/lond 2007/06/18 22:49:52 1.375 @@ -2,7 +2,7 @@ # The LearningOnline Network # lond "LON Daemon" Server (port "LOND" 5663) # -# $Id: lond,v 1.337 2006/08/25 17:22:59 albertel Exp $ +# $Id: lond,v 1.375 2007/06/18 22:49:52 albertel Exp $ # # Copyright Michigan State University Board of Trustees # @@ -33,6 +33,7 @@ use strict; use lib '/home/httpd/lib/perl/'; use LONCAPA; use LONCAPA::Configuration; +use Apache::lonnet; use IO::Socket; use IO::File; @@ -40,16 +41,15 @@ use IO::File; use POSIX; use Crypt::IDEA; use LWP::UserAgent(); +use Digest::MD5 qw(md5_hex); use GDBM_File; use Authen::Krb4; use Authen::Krb5; -use lib '/home/httpd/lib/perl/'; use localauth; use localenroll; use localstudentphoto; use File::Copy; use File::Find; -use LONCAPA::ConfigFileEdit; use LONCAPA::lonlocal; use LONCAPA::lonssl; use Fcntl qw(:flock); @@ -59,7 +59,7 @@ my $DEBUG = 0; # Non zero to ena my $status=''; my $lastlog=''; -my $VERSION='$Revision: 1.337 $'; #' stupid emacs +my $VERSION='$Revision: 1.375 $'; #' stupid emacs my $remoteVERSION; my $currenthostid="default"; my $currentdomainid; @@ -69,7 +69,6 @@ my $clientip; # IP address of client. my $clientname; # LonCAPA name of client. my $server; -my $thisserver; # DNS of us. my $keymode; @@ -85,12 +84,6 @@ my $tmpsnum = 0; # Id of tmpputs. my $ConnectionType; -my %hostid; # ID's for hosts in cluster by ip. -my %hostdom; # LonCAPA domain for hosts in cluster. -my %hostname; # DNSname -> ID's mapping. -my %hostip; # IPs for hosts in cluster. -my %hostdns; # ID's of hosts looked up by DNS name. - my %managers; # Ip -> manager names my %perlvar; # Will have the apache conf defined perl vars. @@ -178,19 +171,16 @@ sub ResetStatistics { # $Socket - Socket open on client. # $initcmd - The full text of the init command. # -# Implicit inputs: -# $thisserver - Our DNS name. -# # Returns: # IDEA session key on success. # undef on failure. # sub LocalConnection { my ($Socket, $initcmd) = @_; - Debug("Attempting local connection: $initcmd client: $clientip me: $thisserver"); + Debug("Attempting local connection: $initcmd client: $clientip"); if($clientip ne "127.0.0.1") { &logthis(' LocalConnection rejecting non local: ' - ."$clientip ne $thisserver "); + ."$clientip ne 127.0.0.1 "); close $Socket; return undef; } else { @@ -424,7 +414,7 @@ sub ReadManagerTable { if ($host =~ "^#") { # Comment line. next; } - if (!defined $hostip{$host}) { # This is a non cluster member + if (!defined &Apache::lonnet::get_host_ip($host)) { # This is a non cluster member # The entry is of the form: # cluname:hostname # cluname - A 'cluster hostname' is needed in order to negotiate @@ -442,7 +432,7 @@ sub ReadManagerTable { } } else { logthis(' existing host'." $host\n"); - $managers{$hostip{$host}} = $host; # Use info from cluster tab if clumemeber + $managers{&Apache::lonnet::get_host_ip($host)} = $host; # Use info from cluster tab if clumemeber } } } @@ -503,30 +493,30 @@ sub AdjustHostContents { my $adjusted; my $me = $perlvar{'lonHostID'}; - foreach my $line (split(/\n/,$contents)) { + foreach my $line (split(/\n/,$contents)) { if(!(($line eq "") || ($line =~ /^ *\#/) || ($line =~ /^ *$/))) { chomp($line); my ($id,$domain,$role,$name,$ip,$maxcon,$idleto,$mincon)=split(/:/,$line); if ($id eq $me) { - my $ip = gethostbyname($name); - my $ipnew = inet_ntoa($ip); - $ip = $ipnew; + my $ip = gethostbyname($name); + my $ipnew = inet_ntoa($ip); + $ip = $ipnew; # Reconstruct the host line and append to adjusted: - my $newline = "$id:$domain:$role:$name:$ip"; - if($maxcon ne "") { # Not all hosts have loncnew tuning params - $newline .= ":$maxcon:$idleto:$mincon"; - } - $adjusted .= $newline."\n"; + my $newline = "$id:$domain:$role:$name:$ip"; + if($maxcon ne "") { # Not all hosts have loncnew tuning params + $newline .= ":$maxcon:$idleto:$mincon"; + } + $adjusted .= $newline."\n"; - } else { # Not me, pass unmodified. - $adjusted .= $line."\n"; - } + } else { # Not me, pass unmodified. + $adjusted .= $line."\n"; + } } else { # Blank or comment never re-written. $adjusted .= $line."\n"; # Pass blanks and comments as is. } - } - return $adjusted; + } + return $adjusted; } # # InstallFile: Called to install an administrative file: @@ -835,16 +825,14 @@ sub AdjustOurHost { # Use the config line to get my hostname. # Use gethostbyname to translate that into an IP address. # - my ($id,$domain,$role,$name,$ip,$maxcon,$idleto,$mincon) = split(/:/,$ConfigLine); - my $BinaryIp = gethostbyname($name); - my $ip = inet_ntoa($ip); + my ($id,$domain,$role,$name,$maxcon,$idleto,$mincon) = split(/:/,$ConfigLine); # # Reassemble the config line from the elements in the list. # Note that if the loncnew items were not present before, they will # be now even if they would be empty # my $newConfigLine = $id; - foreach my $item ($domain, $role, $name, $ip, $maxcon, $idleto, $mincon) { + foreach my $item ($domain, $role, $name, $maxcon, $idleto, $mincon) { $newConfigLine .= ":".$item; } # Replace the line: @@ -890,11 +878,11 @@ sub EditFile { # Split the command into it's pieces: edit:filetype:script - my ($request, $filetype, $script) = split(/:/, $request,3); # : in script + my ($cmd, $filetype, $script) = split(/:/, $request,3); # : in script # Check the pre-coditions for success: - if($request != "edit") { # Something is amiss afoot alack. + if($cmd != "edit") { # Something is amiss afoot alack. return "error:edit request detected, but request != 'edit'\n"; } if( ($filetype ne "hosts") && @@ -1034,7 +1022,7 @@ sub ping_handler { sub pong_handler { my ($cmd, $tail, $replyfd) = @_; - my $reply=&reply("ping",$clientname); + my $reply=&Apache::lonnet::reply("ping",$clientname); &Reply( $replyfd, "$currenthostid:$reply\n", "$cmd:$tail"); return 1; } @@ -1144,7 +1132,7 @@ sub load_handler { sub user_load_handler { my ($cmd, $tail, $replyfd) = @_; - my $userloadpercent=&userload(); + my $userloadpercent=&Apache::lonnet::userload(); &Reply($replyfd, "$userloadpercent\n", "$cmd:$tail"); return 1; @@ -1252,7 +1240,7 @@ sub push_file_handler { # sub du_handler { my ($cmd, $ududir, $client) = @_; - my ($ududir) = split(/:/,$ududir); # Make 'telnet' testing easier. + ($ududir) = split(/:/,$ududir); # Make 'telnet' testing easier. my $userinput = "$cmd:$ududir"; if ($ududir=~/\.\./ || $ududir!~m|^/home/httpd/|) { @@ -1270,6 +1258,7 @@ sub du_handler { my $code=sub { if ($_=~/\.\d+\./) { return;} if ($_=~/\.meta$/) { return;} + if (-d $_) { return;} $total_size+=(stat($_))[7]; }; chdir($ududir); @@ -1576,17 +1565,24 @@ sub change_password_handler { # uname - Username. # upass - Current password. # npass - New password. + # context - Context in which this was called + # (preferences or reset_by_email). - my ($udom,$uname,$upass,$npass)=split(/:/,$tail); + my ($udom,$uname,$upass,$npass,$context)=split(/:/,$tail); $upass=&unescape($upass); $npass=&unescape($npass); &Debug("Trying to change password for $uname"); # First require that the user can be authenticated with their - # old password: - - my $validated = &validate_user($udom, $uname, $upass); + # old password unless context was 'reset_by_email': + + my $validated; + if ($context eq 'reset_by_email') { + $validated = 1; + } else { + $validated = &validate_user($udom, $uname, $upass); + } if($validated) { my $realpasswd = &get_auth_type($udom, $uname); # Defined since authd. @@ -1605,7 +1601,7 @@ sub change_password_handler { ."to change password"); &Failure( $client, "non_authorized\n",$userinput); } - } elsif ($howpwd eq 'unix') { + } elsif ($howpwd eq 'unix' && $context ne 'reset_by_email') { my $result = &change_unix_password($uname, $npass); &logthis("Result of password change for $uname: ". $result); @@ -1844,13 +1840,13 @@ sub update_resource_handler { my $now=time; my $since=$now-$atime; if ($since>$perlvar{'lonExpire'}) { - my $reply=&reply("unsub:$fname","$clientname"); + my $reply=&Apache::lonnet::reply("unsub:$fname","$clientname"); &devalidate_meta_cache($fname); unlink("$fname"); unlink("$fname.meta"); } else { my $transname="$fname.in.transfer"; - my $remoteurl=&reply("sub:$fname","$clientname"); + my $remoteurl=&Apache::lonnet::reply("sub:$fname","$clientname"); my $response; alarm(120); { @@ -1895,22 +1891,12 @@ sub devalidate_meta_cache { my ($url) = @_; use Cache::Memcached; my $memcache = new Cache::Memcached({'servers'=>['127.0.0.1:11211']}); - $url = &declutter($url); + $url = &Apache::lonnet::declutter($url); $url =~ s-\.meta$--; my $id = &escape('meta:'.$url); $memcache->delete($id); } -sub declutter { - my $thisfn=shift; - $thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//; - $thisfn=~s/^\///; - $thisfn=~s|^adm/wrapper/||; - $thisfn=~s|^adm/coursedocs/showdoc/||; - $thisfn=~s/^res\///; - $thisfn=~s/\?.+$//; - return $thisfn; -} # # Fetch a user file from a remote server to the user's home directory # userfiles subdir. @@ -2125,14 +2111,21 @@ sub token_auth_user_file_handler { chomp($session); my $reply="non_auth\n"; - if (open(ENVIN,$perlvar{'lonIDsDir'}.'/'. - $session.'.id')) { + my $file = $perlvar{'lonIDsDir'}.'/'.$session.'.id'; + if (open(ENVIN,"$file")) { flock(ENVIN,LOCK_SH); - while (my $line=) { - my ($envname)=split(/=/,$line,2); - $envname=&unescape($envname); - if ($envname=~ m|^userfile\.\Q$fname\E|) { $reply="ok\n"; } + tie(my %disk_env,'GDBM_File',"$file",&GDBM_READER(),0640); + if (exists($disk_env{"userfile.$fname"})) { + $reply="ok\n"; + } else { + foreach my $envname (keys(%disk_env)) { + if ($envname=~ m|^userfile\.\Q$fname\E|) { + $reply="ok\n"; + last; + } + } } + untie(%disk_env); close(ENVIN); &Reply($client, $reply, "$cmd:$tail"); } else { @@ -2595,7 +2588,7 @@ sub get_profile_entry_encrypted { my $userinput = "$cmd:$tail"; - my ($cmd,$udom,$uname,$namespace,$what) = split(/:/,$userinput); + my ($udom,$uname,$namespace,$what) = split(/:/,$tail); chomp($what); my $qresult = read_profile($udom, $uname, $namespace, $what); my ($first) = split(/:/, $qresult); @@ -3040,10 +3033,10 @@ sub restore_handler { my ($cmd, $tail, $client) = @_; my $userinput = "$cmd:$tail"; # Only used for logging purposes. - - my ($cmd,$udom,$uname,$namespace,$rid) = split(/:/,$userinput); + my ($udom,$uname,$namespace,$rid) = split(/:/,$tail); $namespace=~s/\//\_/g; - $namespace=~s/\W//g; + $namespace = &LONCAPA::clean_username($namespace); + chomp($rid); my $qresult=''; my $hashref = &tie_user_hash($udom, $uname, $namespace, &GDBM_READER()); @@ -3216,7 +3209,7 @@ sub reply_query_handler { my $userinput = "$cmd:$tail"; - my ($cmd,$id,$reply)=split(/:/,$userinput); + my ($id,$reply)=split(/:/,$tail); my $store; my $execdir=$perlvar{'lonDaemons'}; if ($store=IO::File->new(">$execdir/tmp/$id")) { @@ -3280,13 +3273,14 @@ sub put_course_id_handler { foreach my $pair (@pairs) { my ($key,$courseinfo) = split(/=/,$pair,2); $courseinfo =~ s/=/:/g; - - my @current_items = split(/:/,$hashref->{$key}); + my @current_items = split(/:/,$hashref->{$key},-1); shift(@current_items); # remove description pop(@current_items); # remove last access my $numcurrent = scalar(@current_items); - - my @new_items = split(/:/,$courseinfo); + if ($numcurrent > 3) { + $numcurrent = 3; + } + my @new_items = split(/:/,$courseinfo,-1); my $numnew = scalar(@new_items); if ($numcurrent > 0) { if ($numnew <= $numcurrent) { # flushcourselogs() from pre 2.2 @@ -3352,7 +3346,7 @@ sub dump_course_id_handler { my $userinput = "$cmd:$tail"; my ($udom,$since,$description,$instcodefilter,$ownerfilter,$coursefilter, - $typefilter) =split(/:/,$tail); + $typefilter,$regexp_ok) =split(/:/,$tail); if (defined($description)) { $description=&unescape($description); } else { @@ -3389,6 +3383,9 @@ sub dump_course_id_handler { } else { $typefilter='.'; } + if (defined($regexp_ok)) { + $regexp_ok=&unescape($regexp_ok); + } unless (defined($since)) { $since=0; } my $qresult=''; @@ -3409,8 +3406,14 @@ sub dump_course_id_handler { } unless ($instcodefilter eq '.' || !defined($instcodefilter)) { my $unescapeInstcode = &unescape($inst_code); - unless (eval('$unescapeInstcode=~/\Q$instcodefilter\E/i')) { - $match = 0; + if ($regexp_ok) { + unless (eval('$unescapeInstcode=~/$instcodefilter/')) { + $match = 0; + } + } else { + unless (eval('$unescapeInstcode=~/\Q$instcodefilter\E/i')) { + $match = 0; + } } } unless ($ownerfilter eq '.' || !defined($ownerfilter)) { @@ -3456,7 +3459,7 @@ sub dump_course_id_handler { } unless ($typefilter eq '.' || !defined($typefilter)) { my $unescapeType = &unescape($type); - if (!defined($type)) { + if ($type eq '') { if ($typefilter ne 'Course') { $match = 0; } @@ -3488,6 +3491,99 @@ sub dump_course_id_handler { ®ister_handler("courseiddump", \&dump_course_id_handler, 0, 1, 0); # +# Puts an unencrypted entry in a namespace db file at the domain level +# +# Parameters: +# $cmd - The command that got us here. +# $tail - Tail of the command (remaining parameters). +# $client - File descriptor connected to client. +# Returns +# 0 - Requested to exit, caller should shut down. +# 1 - Continue processing. +# Side effects: +# reply is written to $client. +# +sub put_domain_handler { + my ($cmd,$tail,$client) = @_; + + my $userinput = "$cmd:$tail"; + + my ($udom,$namespace,$what) =split(/:/,$tail,3); + chomp($what); + my @pairs=split(/\&/,$what); + my $hashref = &tie_domain_hash($udom, "$namespace", &GDBM_WRCREAT(), + "P", $what); + if ($hashref) { + foreach my $pair (@pairs) { + my ($key,$value)=split(/=/,$pair); + $hashref->{$key}=$value; + } + if (&untie_domain_hash($hashref)) { + &Reply($client, "ok\n", $userinput); + } else { + &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". + "while attempting putdom\n", $userinput); + } + } else { + &Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". + "while attempting putdom\n", $userinput); + } + + return 1; +} +®ister_handler("putdom", \&put_domain_handler, 0, 1, 0); + +# Unencrypted get from the namespace database file at the domain level. +# This function retrieves a keyed item from a specific named database in the +# domain directory. +# +# Parameters: +# $cmd - Command request keyword (get). +# $tail - Tail of the command. This is a colon separated list +# consisting of the domain and the 'namespace' +# which selects the gdbm file to do the lookup in, +# & separated list of keys to lookup. Note that +# the values are returned as an & separated list too. +# $client - File descriptor open on the client. +# Returns: +# 1 - Continue processing. +# 0 - Exit. +# Side effects: +# reply is written to $client. +# + +sub get_domain_handler { + my ($cmd, $tail, $client) = @_; + + my $userinput = "$client:$tail"; + + my ($udom,$namespace,$what)=split(/:/,$tail,3); + chomp($what); + my @queries=split(/\&/,$what); + my $qresult=''; + my $hashref = &tie_domain_hash($udom, "$namespace", &GDBM_READER()); + if ($hashref) { + for (my $i=0;$i<=$#queries;$i++) { + $qresult.="$hashref->{$queries[$i]}&"; + } + if (&untie_domain_hash($hashref)) { + $qresult=~s/\&$//; + &Reply($client, "$qresult\n", $userinput); + } else { + &Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". + "while attempting getdom\n",$userinput); + } + } else { + &Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". + "while attempting getdom\n",$userinput); + } + + return 1; +} +®ister_handler("getdom", \&get_domain_handler, 0, 1, 0); + + +# # Puts an id to a domains id database. # # Parameters: @@ -3858,15 +3954,23 @@ sub tmp_put_handler { my $userinput = "$cmd:$what"; # Reconstruct for logging. - - my $store; + my ($record,$context) = split(/:/,$what); + if ($context ne '') { + chomp($context); + $context = &unescape($context); + } + my ($id,$store); $tmpsnum++; - my $id=$$.'_'.$clientip.'_'.$tmpsnum; + if ($context eq 'resetpw') { + $id = &md5_hex(&md5_hex(time.{}.rand().$$)); + } else { + $id = $$.'_'.$clientip.'_'.$tmpsnum; + } $id=~s/\W/\_/g; - $what=~s/\n//g; + $record=~s/\n//g; my $execdir=$perlvar{'lonDaemons'}; if ($store=IO::File->new(">$execdir/tmp/$id.tmp")) { - print $store $what; + print $store $record; close $store; &Reply($client, "$id\n", $userinput); } else { @@ -4181,16 +4285,47 @@ sub validate_course_section_handler { ®ister_handler("autovalidatecourse", \&validate_course_section_handler, 0, 1, 0); # -# Create a password for a new auto-enrollment user. -# I think/guess, this password allows access to the institutions -# AIS class list server/services. Stuart can correct this comment -# when he finds out how wrong I am. +# Validate course owner's access to enrollment data for specific class section. +# # # Formal Parameters: # $cmd - The command request that got us dispatched. # $tail - The tail of the command. In this case this is a colon separated # set of words that will be split into: -# $authparam - An authentication parameter (username??). +# $inst_class - Institutional code for the specific class section +# $courseowner - The escaped username:domain of the course owner +# $cdom - The domain of the course from the institution's +# point of view. +# $client - The socket open on the client. +# Returns: +# 1 - continue processing. +# + +sub validate_class_access_handler { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my ($inst_class,$courseowner,$cdom) = split(/:/, $tail); + $courseowner = &unescape($courseowner); + my $outcome; + eval { + local($SIG{__DIE__})='DEFAULT'; + $outcome=&localenroll::check_section($inst_class,$courseowner,$cdom); + }; + &Reply($client,"$outcome\n", $userinput); + + return 1; +} +®ister_handler("autovalidateclass_sec", \&validate_class_access_handler, 0, 1, 0); + +# +# Create a password for a new LON-CAPA user added by auto-enrollment. +# Only used for case where authentication method for new user is localauth +# +# Formal Parameters: +# $cmd - The command request that got us dispatched. +# $tail - The tail of the command. In this case this is a colon separated +# set of words that will be split into: +# $authparam - An authentication parameter (localauth parameter). # $cdom - The domain of the course from the institution's # point of view. # $client - The socket open on the client. @@ -4297,10 +4432,10 @@ sub get_institutional_code_format_handle \%cat_titles, \%cat_order); if ($formatreply eq 'ok') { - my $codes_str = &hash2str(%codes); - my $codetitles_str = &array2str(@codetitles); - my $cat_titles_str = &hash2str(%cat_titles); - my $cat_order_str = &hash2str(%cat_order); + my $codes_str = &Apache::lonnet::hash2str(%codes); + my $codetitles_str = &Apache::lonnet::array2str(@codetitles); + my $cat_titles_str = &Apache::lonnet::hash2str(%cat_titles); + my $cat_order_str = &Apache::lonnet::hash2str(%cat_order); &Reply($client, $codes_str.':'.$codetitles_str.':'.$cat_titles_str.':' .$cat_order_str."\n", @@ -4317,6 +4452,38 @@ sub get_institutional_code_format_handle ®ister_handler("autoinstcodeformat", \&get_institutional_code_format_handler,0,1,0); +sub get_institutional_defaults_handler { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + + my $dom = $tail; + my %defaults_hash; + my @code_order; + my $outcome; + eval { + local($SIG{__DIE__})='DEFAULT'; + $outcome = &localenroll::instcode_defaults($dom,\%defaults_hash, + \@code_order); + }; + if (!$@) { + if ($outcome eq 'ok') { + my $result=''; + while (my ($key,$value) = each(%defaults_hash)) { + $result.=&escape($key).'='.&escape($value).'&'; + } + $result .= 'code_order='.&escape(join('&',@code_order)); + &Reply($client,$result."\n",$userinput); + } else { + &Reply($client,"error\n", $userinput); + } + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } +} +®ister_handler("autoinstcodedefaults", + \&get_institutional_defaults_handler,0,1,0); + + # Get domain specific conditions for import of student photographs to a course # # Retrieves information from photo_permission subroutine in localenroll. @@ -4444,6 +4611,35 @@ sub student_photo_handler { } ®ister_handler("studentphoto", \&student_photo_handler, 0, 1, 0); +sub inst_usertypes_handler { + my ($cmd, $domain, $client) = @_; + my $res; + my $userinput = $cmd.":".$domain; # For logging purposes. + my (%typeshash,@order,$result); + eval { + local($SIG{__DIE__})='DEFAULT'; + $result=&localenroll::inst_usertypes($domain,\%typeshash,\@order); + }; + if ($result eq 'ok') { + if (keys(%typeshash) > 0) { + foreach my $key (keys(%typeshash)) { + $res.=&escape($key).'='.&escape($typeshash{$key}).'&'; + } + } + $res=~s/\&$//; + $res .= ':'; + if (@order > 0) { + foreach my $item (@order) { + $res .= &escape($item).'&'; + } + } + $res=~s/\&$//; + } + &Reply($client, "$res\n", $userinput); + return 1; +} +®ister_handler("inst_usertypes", \&inst_usertypes_handler, 0, 1, 0); + # mkpath makes all directories for a file, expects an absolute path with a # file or a trailing / if just a dir is passed # returns 1 on success 0 on failure @@ -4707,7 +4903,7 @@ sub catchexception { $SIG{__DIE__}='DEFAULT'; &status("Catching exception"); &logthis("CRITICAL: " - ."ABNORMAL EXIT. Child $$ for server $thisserver died through " + ."ABNORMAL EXIT. Child $$ for server ".$perlvar{'lonHostID'}." died through " ."a crash with this error msg->[$error]"); &logthis('Famous last words: '.$status.' - '.$lastlog); if ($client) { print $client "error: $error\n"; } @@ -4818,67 +5014,6 @@ sub HUPSMAN { # sig } # -# Kill off hashes that describe the host table prior to re-reading it. -# Hashes affected are: -# %hostid, %hostdom %hostip %hostdns. -# -sub KillHostHashes { - foreach my $key (keys %hostid) { - delete $hostid{$key}; - } - foreach my $key (keys %hostdom) { - delete $hostdom{$key}; - } - foreach my $key (keys %hostip) { - delete $hostip{$key}; - } - foreach my $key (keys %hostdns) { - delete $hostdns{$key}; - } -} -# -# Read in the host table from file and distribute it into the various hashes: -# -# - %hostid - Indexed by IP, the loncapa hostname. -# - %hostdom - Indexed by loncapa hostname, the domain. -# - %hostip - Indexed by hostid, the Ip address of the host. -sub ReadHostTable { - - open (CONFIG,"$perlvar{'lonTabDir'}/hosts.tab") || die "Can't read host file"; - my $myloncapaname = $perlvar{'lonHostID'}; - Debug("My loncapa name is : $myloncapaname"); - my %name_to_ip; - while (my $configline=) { - if ($configline !~ /^\s*\#/ && $configline !~ /^\s*$/ ) { - my ($id,$domain,$role,$name)=split(/:/,$configline); - $name=~s/\s//g; - my $ip; - if (!exists($name_to_ip{$name})) { - $ip = gethostbyname($name); - if (!$ip || length($ip) ne 4) { - &logthis("Skipping host $id name $name no IP found\n"); - next; - } - $ip=inet_ntoa($ip); - $name_to_ip{$name} = $ip; - } else { - $ip = $name_to_ip{$name}; - } - $hostid{$ip}=$id; # LonCAPA name of host by IP. - $hostdom{$id}=$domain; # LonCAPA domain name of host. - $hostname{$id}=$name; # LonCAPA name -> DNS name - $hostip{$id}=$ip; # IP address of host. - $hostdns{$name} = $id; # LonCAPA name of host by DNS. - - if ($id eq $perlvar{'lonHostID'}) { - Debug("Found me in the host table: $name"); - $thisserver=$name; - } - } - } - close(CONFIG); -} -# # Reload the Apache daemon's state. # This is done by invoking /home/httpd/perl/apachereload # a setuid perl script that can be root for us to do this job. @@ -4909,13 +5044,12 @@ sub UpdateHosts { # either dropped or changed hosts. Note that the re-read of the table # will take care of new and changed hosts as connections come into being. + &Apache::lonnet::reset_hosts_info(); - KillHostHashes; - ReadHostTable; - - foreach my $child (keys %children) { + foreach my $child (keys(%children)) { my $childip = $children{$child}; - if(!$hostid{$childip}) { + if ($childip ne '127.0.0.1' + && !defined(&Apache::lonnet::get_hosts_from_ip($childip))) { logthis(' UpdateHosts killing child ' ." $child for ip $childip "); kill('INT', $child); @@ -5075,63 +5209,6 @@ sub status { $0='lond: '.$what.' '.$local; } -# ----------------------------------------------------------- Send USR1 to lonc - -sub reconlonc { - my $peerfile=shift; - &logthis("Trying to reconnect for $peerfile"); - my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid"; - if (my $fh=IO::File->new("$loncfile")) { - my $loncpid=<$fh>; - chomp($loncpid); - if (kill 0 => $loncpid) { - &logthis("lonc at pid $loncpid responding, sending USR1"); - kill USR1 => $loncpid; - } else { - &logthis( - "CRITICAL: " - ."lonc at pid $loncpid not responding, giving up"); - } - } else { - &logthis('CRITICAL: lonc not running, giving up'); - } -} - -# -------------------------------------------------- Non-critical communication - -sub subreply { - my ($cmd,$server)=@_; - my $peerfile="$perlvar{'lonSockDir'}/".$hostname{$server}; - my $sclient=IO::Socket::UNIX->new(Peer =>"$peerfile", - Type => SOCK_STREAM, - Timeout => 10) - or return "con_lost"; - print $sclient "sethost:$server:$cmd\n"; - my $answer=<$sclient>; - chomp($answer); - if (!$answer) { $answer="con_lost"; } - return $answer; -} - -sub reply { - my ($cmd,$server)=@_; - my $answer; - if ($server ne $currenthostid) { - $answer=subreply($cmd,$server); - if ($answer eq 'con_lost') { - $answer=subreply("ping",$server); - if ($answer ne $server) { - &logthis("sub reply: answer != server answer is $answer, server is $server"); - &reconlonc("$perlvar{'lonSockDir'}/".$hostname{$server}); - } - $answer=subreply($cmd,$server); - } - } else { - $answer='self_reply'; - } - return $answer; -} - # -------------------------------------------------------------- Talk to lonsql sub sql_reply { @@ -5200,8 +5277,7 @@ $SIG{USR1} = \&checkchildren; $SIG{USR2} = \&UpdateHosts; # Read the host hashes: - -ReadHostTable; +&Apache::lonnet::load_hosts_tab(); my $dist=`$perlvar{'lonDaemons'}/distprobe`; @@ -5280,7 +5356,8 @@ sub make_new_child { # my $tmpsnum=0; # Now global #---------------------------------------------------- kerberos 5 initialization &Authen::Krb5::init_context(); - unless (($dist eq 'fedora4') || ($dist eq 'suse9.3')) { + unless (($dist eq 'fedora5') || ($dist eq 'fedora4') || + ($dist eq 'fedora6') || ($dist eq 'suse9.3')) { &Authen::Krb5::init_ets(); } @@ -5290,19 +5367,17 @@ sub make_new_child { # ----------------------------------------------------------------------------- # see if we know client and 'check' for spoof IP by ineffective challenge - ReadManagerTable; # May also be a manager!! - my $outsideip=$clientip; if ($clientip eq '127.0.0.1') { - $outsideip=$hostip{$perlvar{'lonHostID'}}; + $outsideip=&Apache::lonnet::get_host_ip($perlvar{'lonHostID'}); } - my $clientrec=($hostid{$outsideip} ne undef); + my $clientrec=defined(&Apache::lonnet::get_hosts_from_ip($outsideip)); my $ismanager=($managers{$outsideip} ne undef); $clientname = "[unknonwn]"; if($clientrec) { # Establish client type. $ConnectionType = "client"; - $clientname = $hostid{$outsideip}; + $clientname = (&Apache::lonnet::get_hosts_from_ip($outsideip))[-1]; if($ismanager) { $ConnectionType = "both"; } @@ -5409,14 +5484,9 @@ sub make_new_child { if ($clientok) { # ---------------- New known client connecting, could mean machine online again - - foreach my $id (keys(%hostip)) { - if ($hostip{$id} ne $clientip || - $hostip{$currenthostid} eq $clientip) { - # no need to try to do recon's to myself - next; - } - &reconlonc("$perlvar{'lonSockDir'}/".$hostname{$id}); + if (&Apache::lonnet::get_host_ip($currenthostid) ne $clientip + && $clientip ne '127.0.0.1') { + &Apache::lonnet::reconlonc($clientname); } &logthis("Established connection: $clientname"); &status('Will listen to '.$clientname); @@ -5693,7 +5763,8 @@ sub validate_user { my $krbservice = "krbtgt/".$contentpwd."\@".$contentpwd; my $krbserver = &Authen::Krb5::parse_name($krbservice); my $credentials= &Authen::Krb5::cc_default(); - $credentials->initialize($krbclient); + $credentials->initialize(&Authen::Krb5::parse_name($user.'@' + .$contentpwd)); my $krbreturn = &Authen::Krb5::get_in_tkt_with_password($krbclient, $krbserver, $password, @@ -5706,7 +5777,12 @@ sub validate_user { # Authenticate via installation specific authentcation method: $validated = &localauth::localauth($user, $password, - $contentpwd); + $contentpwd, + $domain); + if ($validated < 0) { + &logthis("localauth for $contentpwd $user:$domain returned a $validated"); + $validated = 0; + } } else { # Unrecognized auth is also bad. $validated = 0; } @@ -5732,8 +5808,7 @@ sub addline { my ($fname,$hostid,$ip,$newline)=@_; my $contents; my $found=0; - my $expr='^'.$hostid.':'.$ip.':'; - $expr =~ s/\./\\\./g; + my $expr='^'.quotemeta($hostid).':'.quotemeta($ip).':'; my $sh; if ($sh=IO::File->new("$fname.subscription")) { while (my $subline=<$sh>) { @@ -5940,7 +6015,7 @@ sub subscribe { # the metadata unless ($fname=~/\.meta$/) { &unsub("$fname.meta",$clientip); } $fname=~s/\/home\/httpd\/html\/res/raw/; - $fname="http://$thisserver/".$fname; + $fname="http://".&Apache::lonnet::hostname($perlvar{'lonHostID'})."/".$fname; $result="$fname\n"; } } else { @@ -6094,9 +6169,10 @@ sub sethost { } if (!defined($hostid)) { $hostid=$perlvar{'lonHostID'}; } - if ($hostip{$perlvar{'lonHostID'}} eq $hostip{$hostid}) { + if (&Apache::lonnet::get_host_ip($perlvar{'lonHostID'}) + eq &Apache::lonnet::get_host_ip($hostid)) { $currenthostid =$hostid; - $currentdomainid=$hostdom{$hostid}; + $currentdomainid=&Apache::lonnet::host_domain($hostid); &logthis("Setting hostid to $hostid, and domain to $currentdomainid"); } else { &logthis("Requested host id $hostid not an alias of ". @@ -6112,96 +6188,6 @@ sub version { return "version:$VERSION"; } -#There is a copy of this in lonnet.pm -sub userload { - my $numusers=0; - { - opendir(LONIDS,$perlvar{'lonIDsDir'}); - my $filename; - my $curtime=time; - while ($filename=readdir(LONIDS)) { - if ($filename eq '.' || $filename eq '..') {next;} - my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9]; - if ($curtime-$mtime < 1800) { $numusers++; } - } - closedir(LONIDS); - } - my $userloadpercent=0; - my $maxuserload=$perlvar{'lonUserLoadLim'}; - if ($maxuserload) { - $userloadpercent=100*$numusers/$maxuserload; - } - $userloadpercent=sprintf("%.2f",$userloadpercent); - return $userloadpercent; -} - -# Routines for serializing arrays and hashes (copies from lonnet) - -sub array2str { - my (@array) = @_; - my $result=&arrayref2str(\@array); - $result=~s/^__ARRAY_REF__//; - $result=~s/__END_ARRAY_REF__$//; - return $result; -} - -sub arrayref2str { - my ($arrayref) = @_; - my $result='__ARRAY_REF__'; - foreach my $elem (@$arrayref) { - if(ref($elem) eq 'ARRAY') { - $result.=&arrayref2str($elem).'&'; - } elsif(ref($elem) eq 'HASH') { - $result.=&hashref2str($elem).'&'; - } elsif(ref($elem)) { - #print("Got a ref of ".(ref($elem))." skipping."); - } else { - $result.=&escape($elem).'&'; - } - } - $result=~s/\&$//; - $result .= '__END_ARRAY_REF__'; - return $result; -} - -sub hash2str { - my (%hash) = @_; - my $result=&hashref2str(\%hash); - $result=~s/^__HASH_REF__//; - $result=~s/__END_HASH_REF__$//; - return $result; -} - -sub hashref2str { - my ($hashref)=@_; - my $result='__HASH_REF__'; - foreach (sort(keys(%$hashref))) { - if (ref($_) eq 'ARRAY') { - $result.=&arrayref2str($_).'='; - } elsif (ref($_) eq 'HASH') { - $result.=&hashref2str($_).'='; - } elsif (ref($_)) { - $result.='='; - #print("Got a ref of ".(ref($_))." skipping."); - } else { - if ($_) {$result.=&escape($_).'=';} else { last; } - } - - if(ref($hashref->{$_}) eq 'ARRAY') { - $result.=&arrayref2str($hashref->{$_}).'&'; - } elsif(ref($hashref->{$_}) eq 'HASH') { - $result.=&hashref2str($hashref->{$_}).'&'; - } elsif(ref($hashref->{$_})) { - $result.='&'; - #print("Got a ref of ".(ref($hashref->{$_}))." skipping."); - } else { - $result.=&escape($hashref->{$_}).'&'; - } - } - $result=~s/\&$//; - $result .= '__END_HASH_REF__'; - return $result; -} # ----------------------------------- POD (plain old documentation, CPAN style)