--- loncom/lonnet/perl/lonnet.pm 2002/02/07 13:56:06 1.200 +++ loncom/lonnet/perl/lonnet.pm 2002/04/04 20:06:20 1.206 @@ -1,7 +1,7 @@ # The LearningOnline Network # TCP networking package # -# $Id: lonnet.pm,v 1.200 2002/02/07 13:56:06 www Exp $ +# $Id: lonnet.pm,v 1.206 2002/04/04 20:06:20 matthew Exp $ # # Copyright Michigan State University Board of Trustees # @@ -137,8 +137,24 @@ sub subreply { sub reply { my ($cmd,$server)=@_; + unless (defined($hostname{$server})) { return 'no_such_host'; } my $answer=subreply($cmd,$server); - if ($answer eq 'con_lost') { $answer=subreply($cmd,$server); } + if ($answer eq 'con_lost') { + sleep 5; + $answer=subreply($cmd,$server); + if ($answer eq 'con_lost') { + &logthis("Second attempt con_lost on $server"); + my $peerfile="$perlvar{'lonSockDir'}/$server"; + my $client=IO::Socket::UNIX->new(Peer =>"$peerfile", + Type => SOCK_STREAM, + Timeout => 10) + or return "con_lost"; + &logthis("Killing socket"); + print $client "close_connection_exit\n"; + sleep 5; + $answer=subreply($cmd,$server); + } + } if (($answer=~/^refused/) || ($answer=~/^rejected/)) { &logthis("WARNING:". " $cmd to $server returned $answer"); @@ -348,6 +364,41 @@ sub spareserver { return $spareserver; } +# --------------------------------------------- Try to change a user's password + +sub changepass { + my ($uname,$udom,$currentpass,$newpass,$server)=@_; + $currentpass = &escape($currentpass); + $newpass = &escape($newpass); + my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass", + $server); + if (! $answer) { + &logthis("No reply on password change request to $server ". + "by $uname in domain $udom."); + } elsif ($answer =~ "^ok") { + &logthis("$uname in $udom successfully changed their password ". + "on $server."); + } elsif ($answer =~ "^pwchange_failure") { + &logthis("$uname in $udom was unable to change their password ". + "on $server. The action was blocked by either lcpasswd ". + "or pwchange"); + } elsif ($answer =~ "^non_authorized") { + &logthis("$uname in $udom did not get their password correct when ". + "attempting to change it on $server."); + } elsif ($answer =~ "^auth_mode_error") { + &logthis("$uname in $udom attempted to change their password despite ". + "not being locally or internally authenticated on $server."); + } elsif ($answer =~ "^unknown_user") { + &logthis("$uname in $udom attempted to change their password ". + "on $server but were unable to because $server is not ". + "their home server."); + } elsif ($answer =~ "^refused") { + &logthis("$server refused to change $uname in $udom password because ". + "it was sent an unencrypted request to change the password."); + } + return $answer; +} + # ----------------------- Try to determine user's current authentication scheme sub queryauthenticate { @@ -641,7 +692,7 @@ sub ssi { if (%form) { $request=new HTTP::Request('POST',"http://".$ENV{'HTTP_HOST'}.$fn); - $request->content(join '&', map { "$_=$form{$_}" } keys %form); + $request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys %form)); } else { $request=new HTTP::Request('GET',"http://".$ENV{'HTTP_HOST'}.$fn); } @@ -665,6 +716,7 @@ sub flushcourselogs { &logthis('Flushing course log buffers'); foreach (keys %courselogs) { my $crsid=$_; + &logthis(":$crsid:$coursehombuf{$crsid}"); if (&reply('log:'.$coursedombuf{$crsid}.':'. &escape($courselogs{$crsid}), $coursehombuf{$crsid}) eq 'ok') { @@ -862,10 +914,55 @@ sub devalidate { } } +sub arrayref2str { + my ($arrayref) = @_; + my $result='_ARRAY_REF__'; + foreach my $elem (@$arrayref) { + if (ref($elem) eq 'ARRAY') { + $result.=&escape(&arrayref2str($elem)).'&'; + } elsif (ref($elem) eq 'HASH') { + $result.=&escape(&hashref2str($elem)).'&'; + } elsif (ref($elem)) { + &logthis("Got a ref of ".(ref($elem))." skipping."); + } else { + $result.=&escape($elem).'&'; + } + } + $result=~s/\&$//; + return $result; +} + sub hash2str { - my (%hash)=@_; - my $result=''; - foreach (keys %hash) { $result.=escape($_).'='.escape($hash{$_}).'&'; } + my (%hash) = @_; + my $result=&hashref2str(\%hash); + $result=~s/^_HASH_REF__//; + return $result; +} + +sub hashref2str { + my ($hashref)=@_; + my $result='_HASH_REF__'; + foreach (keys(%$hashref)) { + if (ref($_) eq 'ARRAY') { + $result.=&escape(&arrayref2str($_)).'='; + } elsif (ref($_) eq 'HASH') { + $result.=&escape(&hashref2str($_)).'='; + } elsif (ref($_)) { + &logthis("Got a ref of ".(ref($_))." skipping."); + } else { + $result.=&escape($_).'='; + } + + if (ref($$hashref{$_}) eq 'ARRAY') { + $result.=&escape(&arrayref2str($$hashref{$_})).'&'; + } elsif (ref($$hashref{$_}) eq 'HASH') { + $result.=&escape(&hashref2str($$hashref{$_})).'&'; + } elsif (ref($$hashref{$_})) { + &logthis("Got a ref of ".(ref($$hashref{$_}))." skipping."); + } else { + $result.=&escape($$hashref{$_}).'&'; + } + } $result=~s/\&$//; return $result; } @@ -875,9 +972,39 @@ sub str2hash { my %returnhash; foreach (split(/\&/,$string)) { my ($name,$value)=split(/\=/,$_); - $returnhash{&unescape($name)}=&unescape($value); + $name=&unescape($name); + $value=&unescape($value); + if ($value =~ /^_HASH_REF__/) { + $value =~ s/^_HASH_REF__//; + my %hash=&str2hash($value); + $value=\%hash; + } elsif ($value =~ /^_ARRAY_REF__/) { + $value =~ s/^_ARRAY_REF__//; + my @array=&str2array($value); + $value=\@array; + } + $returnhash{$name}=$value; } - return %returnhash; + return (%returnhash); +} + +sub str2array { + my ($string) = @_; + my @returnarray; + foreach my $value (split(/\&/,$string)) { + $value=&unescape($value); + if ($value =~ /^_HASH_REF__/) { + $value =~ s/^_HASH_REF__//; + my %hash=&str2hash($value); + $value=\%hash; + } elsif ($value =~ /^_ARRAY_REF__/) { + $value =~ s/^_ARRAY_REF__//; + my @array=&str2array($value); + $value=\@array; + } + push(@returnarray,$value); + } + return (@returnarray); } # -------------------------------------------------------------------Temp Store @@ -1733,22 +1860,27 @@ sub modifyuserauth { # --------------------------------------------------------------- Modify a user - sub modifyuser { - my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene, - $forceid)=@_; + my ($udom, $uname, $uid, + $umode, $upass, $first, + $middle, $last, $gene, + $forceid, $desiredhome)=@_; $udom=~s/\W//g; $uname=~s/\W//g; &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '. $umode.', '.$first.', '.$middle.', '. - $last.', '.$gene.'(forceid: '.$forceid.') by '. - $ENV{'user.name'}.' at '.$ENV{'user.domain'}); + $last.', '.$gene.'(forceid: '.$forceid.')'. + (defined($desiredhome) ? ' desiredhome = '.$desiredhome : + ' desiredhome not specified'). + ' by '.$ENV{'user.name'}.' at '.$ENV{'user.domain'}); my $uhome=&homeserver($uname,$udom); # ----------------------------------------------------------------- Create User if (($uhome eq 'no_host') && ($umode) && ($upass)) { my $unhome=''; if ($ENV{'course.'.$ENV{'request.course.id'}.'.domain'} eq $udom) { $unhome=$ENV{'course.'.$ENV{'request.course.id'}.'.home'}; + } elsif (defined($desiredhome) && $hostdom{$desiredhome} eq $udom) { + $unhome = $desiredhome; } else { my $tryserver; my $loadm=10000000; @@ -1763,7 +1895,8 @@ sub modifyuser { } } if (($unhome eq '') || ($unhome eq 'no_host')) { - return 'error: find home'; + return 'error: unable to find a home server for '.$uname. + ' in domain '.$udom; } my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'. &escape($upass),$unhome); @@ -2585,6 +2718,7 @@ sub unescape { # ================================================================ Main Program sub goodbye { + &logthis("Starting Shut down"); &flushcourselogs(); &logthis("Shutting down"); } @@ -2847,12 +2981,30 @@ devalidate($symb) : devalidate spreadshe =item * hash2str(%hash) : convert a hash into a string complete with escaping and '=' -and '&' separators +and '&' separators, supports elements that are arrayrefs and hashrefs + +=item * + +hashref2str($hashref) : convert a hashref into a string complete with +escaping and '=' and '&' separators, supports elements that are +arrayrefs and hashrefs + +=item * + +arrayref2str($arrayref) : convert an arrayref into a string complete +with escaping and '&' separators, supports elements that are arrayrefs +and hashrefs + +=item * + +str2hash($string) : convert string to hash using unescaping and +splitting on '=' and '&', supports elements that are arrayrefs and +hashrefs =item * -str2hash($string) : convert string to hash using unescaping and splitting on -'=' and '&' +str2array($string) : convert string to hash using unescaping and +splitting on '&', supports elements that are arrayrefs and hashrefs =item *