--- loncom/lond 2013/03/01 04:49:10 1.498 +++ loncom/lond 2016/01/31 21:25:53 1.517 @@ -2,7 +2,7 @@ # The LearningOnline Network # lond "LON Daemon" Server (port "LOND" 5663) # -# $Id: lond,v 1.498 2013/03/01 04:49:10 raeburn Exp $ +# $Id: lond,v 1.517 2016/01/31 21:25:53 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -61,7 +61,7 @@ my $DEBUG = 0; # Non zero to ena my $status=''; my $lastlog=''; -my $VERSION='$Revision: 1.498 $'; #' stupid emacs +my $VERSION='$Revision: 1.517 $'; #' stupid emacs my $remoteVERSION; my $currenthostid="default"; my $currentdomainid; @@ -130,32 +130,13 @@ my @passwderrors = ("ok", "pwchange_failure - lcpasswd Error filename is invalid"); -# The array below are lcuseradd error strings.: - -my $lastadderror = 13; -my @adderrors = ("ok", - "User ID mismatch, lcuseradd must run as user www", - "lcuseradd Incorrect number of command line parameters must be 3", - "lcuseradd Incorrect number of stdinput lines, must be 3", - "lcuseradd Too many other simultaneous pwd changes in progress", - "lcuseradd User does not exist", - "lcuseradd Unable to make www member of users's group", - "lcuseradd Unable to su to root", - "lcuseradd Unable to set password", - "lcuseradd Username has invalid characters", - "lcuseradd Password has an invalid character", - "lcuseradd User already exists", - "lcuseradd Could not add user.", - "lcuseradd Password mismatch"); - - # This array are the errors from lcinstallfile: my @installerrors = ("ok", "Initial user id of client not that of www", "Usage error, not enough command line arguments", - "Source file name does not exist", - "Destination file name does not exist", + "Source filename does not exist", + "Destination filename does not exist", "Some file operation failed", "Invalid table filename." ); @@ -640,7 +621,7 @@ sub ConfigFileFromSelector { # String to send to client ("ok" or "refused" if bad file). # sub PushFile { - my $request = shift; + my $request = shift; my ($command, $filename, $contents) = split(":", $request, 3); &Debug("PushFile"); @@ -670,6 +651,44 @@ sub PushFile { if($filename eq "host") { $contents = AdjustHostContents($contents); + } elsif ($filename eq 'dns_host' || $filename eq 'dns_domain') { + if ($contents eq '') { + &logthis(' Pushfile: unable to install ' + .$tablefile." - no data received from push. "); + return 'error: push had no data'; + } + if (&Apache::lonnet::get_host_ip($clientname)) { + my $clienthost = &Apache::lonnet::hostname($clientname); + if ($managers{$clientip} eq $clientname) { + my $clientprotocol = $Apache::lonnet::protocol{$clientname}; + $clientprotocol = 'http' if ($clientprotocol ne 'https'); + my $url = '/adm/'.$filename; + $url =~ s{_}{/}; + my $ua=new LWP::UserAgent; + $ua->timeout(60); + my $request=new HTTP::Request('GET',"$clientprotocol://$clienthost$url"); + my $response=$ua->request($request); + if ($response->is_error()) { + &logthis(' Pushfile: unable to install ' + .$tablefile." - error attempting to pull data. "); + return 'error: pull failed'; + } else { + my $result = $response->content; + chomp($result); + unless ($result eq $contents) { + &logthis(' Pushfile: unable to install ' + .$tablefile." - pushed data and pulled data differ. "); + my $pushleng = length($contents); + my $pullleng = length($result); + if ($pushleng != $pullleng) { + return "error: $pushleng vs $pullleng bytes"; + } else { + return "error: mismatch push and pull"; + } + } + } + } + } } # Install the new file: @@ -1704,8 +1723,14 @@ sub read_lonnet_global { sub server_devalidatecache_handler { my ($cmd,$tail,$client) = @_; my $userinput = "$cmd:$tail"; - my ($name,$id) = map { &unescape($_); } split(/:/,$tail); - &Apache::lonnet::devalidate_cache_new($name,$id); + my $items = &unescape($tail); + my @cached = split(/\&/,$items); + foreach my $key (@cached) { + if ($key =~ /:/) { + my ($name,$id) = map { &unescape($_); } split(/:/,$key); + &Apache::lonnet::devalidate_cache_new($name,$id); + } + } my $result = 'ok'; &Reply($client,\$result,$userinput); return 1; @@ -2131,10 +2156,9 @@ sub change_authentication_handler { my $passfilename = &password_path($udom, $uname); if ($passfilename) { # Not allowed to create a new user!! # If just changing the unix passwd. need to arrange to run - # passwd since otherwise make_passwd_file will run - # lcuseradd which fails if an account already exists - # (to prevent an unscrupulous LONCAPA admin from stealing - # an existing account by overwriting it as a LonCAPA account). + # passwd since otherwise make_passwd_file will fail as + # creation of unix authenticated users is no longer supported + # except from the command line, when running make_domain_coordinator.pl if(($oldauth =~/^unix/) && ($umode eq "unix")) { my $result = &change_unix_password($uname, $npass); @@ -2152,15 +2176,8 @@ sub change_authentication_handler { # re-run manage_permissions for that role in order to be able # to take ownership of the construction space back to www:www # - - - if( (($oldauth =~ /^unix/) && ($umode eq "internal")) || - (($oldauth =~ /^internal/) && ($umode eq "unix")) ) { - if(&is_author($udom, $uname)) { - &Debug(" Need to manage author permissions..."); - &manage_permissions("/$udom/_au", $udom, $uname, "$umode:"); - } - } + + &Reply($client, \$result, $userinput); } @@ -2791,8 +2808,12 @@ sub newput_user_profile_entry { foreach my $pair (@pairs) { my ($key,$value)=split(/=/,$pair); if (exists($hashref->{$key})) { - &Failure($client, "key_exists: ".$key."\n",$userinput); - return 1; + if (!&untie_user_hash($hashref)) { + &logthis("error: ".($!+0)." untie (GDBM) failed ". + "while attempting newput - early out as key exists"); + } + &Failure($client, "key_exists: ".$key."\n",$userinput); + return 1; } } @@ -3305,6 +3326,9 @@ sub dump_with_regexp { # namespace - Name of the database being modified # rid - Resource keyword to modify. # what - new value associated with rid. +# laststore - (optional) version=timestamp +# for most recent transaction for rid +# in namespace, when cstore was called # # $client - Socket open on the client. # @@ -3313,23 +3337,45 @@ sub dump_with_regexp { # 1 (keep on processing). # Side-Effects: # Writes to the client +# Successful storage will cause either 'ok', or, if $laststore was included +# in the tail of the request, and the version number for the last transaction +# is larger than the version in $laststore, delay:$numtrans , where $numtrans +# is the number of store evevnts recorded for rid in namespace since +# lonnet::store() was called by the client. +# sub store_handler { my ($cmd, $tail, $client) = @_; my $userinput = "$cmd:$tail"; - - my ($udom,$uname,$namespace,$rid,$what) =split(/:/,$tail); + chomp($tail); + my ($udom,$uname,$namespace,$rid,$what,$laststore) =split(/:/,$tail); if ($namespace ne 'roles') { - chomp($what); my @pairs=split(/\&/,$what); my $hashref = &tie_user_hash($udom, $uname, $namespace, &GDBM_WRCREAT(), "S", "$rid:$what"); if ($hashref) { my $now = time; - my @previouskeys=split(/&/,$hashref->{"keys:$rid"}); - my $key; + my $numtrans; + if ($laststore) { + my ($previousversion,$previoustime) = split(/\=/,$laststore); + my ($lastversion,$lasttime) = (0,0); + $lastversion = $hashref->{"version:$rid"}; + if ($lastversion) { + $lasttime = $hashref->{"$lastversion:$rid:timestamp"}; + } + if (($previousversion) && ($previousversion !~ /\D/)) { + if (($lastversion > $previousversion) && ($lasttime >= $previoustime)) { + $numtrans = $lastversion - $previousversion; + } + } elsif ($lastversion) { + $numtrans = $lastversion; + } + if ($numtrans) { + $numtrans =~ s/D//g; + } + } $hashref->{"version:$rid"}++; my $version=$hashref->{"version:$rid"}; my $allkeys=''; @@ -3342,7 +3388,11 @@ sub store_handler { $allkeys.='timestamp'; $hashref->{"$version:keys:$rid"}=$allkeys; if (&untie_user_hash($hashref)) { - &Reply($client, "ok\n", $userinput); + my $msg = 'ok'; + if ($numtrans) { + $msg = 'delay:'.$numtrans; + } + &Reply($client, "$msg\n", $userinput); } else { &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". "while attempting store\n", $userinput); @@ -3858,7 +3908,9 @@ sub put_course_id_hash_handler { # creationcontext - include courses created in specified context # # domcloner - flag to indicate if user can create CCs in course's domain. -# If so, ability to clone course is automatic. +# If so, ability to clone course is automatic. +# hasuniquecode - filter by courses for which a six character unique code has +# been set. # # $client - The socket open on the client. # Returns: @@ -3883,7 +3935,7 @@ sub dump_course_id_handler { my ($udom,$since,$description,$instcodefilter,$ownerfilter,$coursefilter, $typefilter,$regexp_ok,$rtn_as_hash,$selfenrollonly,$catfilter,$showhidden, $caller,$cloner,$cc_clone_list,$cloneonly,$createdbefore,$createdafter, - $creationcontext,$domcloner) =split(/:/,$tail); + $creationcontext,$domcloner,$hasuniquecode) =split(/:/,$tail); my $now = time; my ($cloneruname,$clonerudom,%cc_clone); if (defined($description)) { @@ -3956,6 +4008,9 @@ sub dump_course_id_handler { } else { $creationcontext = '.'; } + unless ($hasuniquecode) { + $hasuniquecode = '.'; + } my $unpack = 1; if ($description eq '.' && $instcodefilter eq '.' && $ownerfilter eq '.' && $typefilter eq '.') { @@ -4044,6 +4099,9 @@ sub dump_course_id_handler { $selfenroll_end = $items->{'selfenroll_end_date'}; $created = $items->{'created'}; $context = $items->{'context'}; + if ($hasuniquecode ne '.') { + next unless ($items->{'uniquecode'}); + } if ($selfenrollonly) { next if (!$selfenroll_types); if (($selfenroll_end > 0) && ($selfenroll_end <= $now)) { @@ -4319,6 +4377,122 @@ sub put_domain_handler { } ®ister_handler("putdom", \&put_domain_handler, 0, 1, 0); +# Updates one or more entries in clickers.db file at the domain level +# +# Parameters: +# $cmd - The command that got us here. +# $tail - Tail of the command (remaining parameters). +# In this case a colon separated list containing: +# (a) the domain for which we are updating the entries, +# (b) the action required -- add or del -- and +# (c) a &-separated list of entries to add or delete. +# $client - File descriptor connected to client. +# Returns +# 1 - Continue processing. +# 0 - Requested to exit, caller should shut down. +# Side effects: +# reply is written to $client. +# + + +sub update_clickers { + my ($cmd, $tail, $client) = @_; + + my $userinput = "$cmd:$tail"; + my ($udom,$action,$what) =split(/:/,$tail,3); + chomp($what); + + my $hashref = &tie_domain_hash($udom, "clickers", &GDBM_WRCREAT(), + "U","$action:$what"); + + if (!$hashref) { + &Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". + "while attempting updateclickers\n", $userinput); + return 1; + } + + my @pairs=split(/\&/,$what); + foreach my $pair (@pairs) { + my ($key,$value)=split(/=/,$pair); + if ($action eq 'add') { + if (exists($hashref->{$key})) { + my @newvals = split(/,/,&unescape($value)); + my @currvals = split(/,/,&unescape($hashref->{$key})); + my @merged = sort(keys(%{{map { $_ => 1 } (@newvals,@currvals)}})); + $hashref->{$key}=&escape(join(',',@merged)); + } else { + $hashref->{$key}=$value; + } + } elsif ($action eq 'del') { + if (exists($hashref->{$key})) { + my %current; + map { $current{$_} = 1; } split(/,/,&unescape($hashref->{$key})); + map { delete($current{$_}); } split(/,/,&unescape($value)); + if (keys(%current)) { + $hashref->{$key}=&escape(join(',',sort(keys(%current)))); + } else { + delete($hashref->{$key}); + } + } + } + } + if (&untie_user_hash($hashref)) { + &Reply( $client, "ok\n", $userinput); + } else { + &Failure($client, "error: ".($!+0)." untie(GDBM) failed ". + "while attempting put\n", + $userinput); + } + return 1; +} +®ister_handler("updateclickers", \&update_clickers, 0, 1, 0); + + +# Deletes one or more entries in a namespace db file at the domain level +# +# Parameters: +# $cmd - The command that got us here. +# $tail - Tail of the command (remaining parameters). +# In this case a colon separated list containing: +# (a) the domain for which we are deleting the entries, +# (b) &-separated list of keys to delete. +# $client - File descriptor connected to client. +# Returns +# 1 - Continue processing. +# 0 - Requested to exit, caller should shut down. +# Side effects: +# reply is written to $client. +# + +sub del_domain_handler { + my ($cmd,$tail,$client) = @_; + + my $userinput = "$cmd:$tail"; + + my ($udom,$namespace,$what)=split(/:/,$tail,3); + chomp($what); + my $hashref = &tie_domain_hash($udom,$namespace,&GDBM_WRCREAT(), + "D", $what); + if ($hashref) { + my @keys=split(/\&/,$what); + foreach my $key (@keys) { + delete($hashref->{$key}); + } + if (&untie_user_hash($hashref)) { + &Reply($client, "ok\n", $userinput); + } else { + &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". + "while attempting deldom\n", $userinput); + } + } else { + &Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". + "while attempting deldom\n", $userinput); + } + return 1; +} +®ister_handler("deldom", \&del_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. @@ -4466,6 +4640,49 @@ sub get_id_handler { } ®ister_handler("idget", \&get_id_handler, 0, 1, 0); +# Deletes one or more ids in a domain's id database. +# +# Parameters: +# $cmd - Command keyword (iddel). +# $tail - Command tail. In this case a colon +# separated list containing: +# The domain for which we are deleting the id(s). +# &-separated list of id(s) to delete. +# $client - File open on client socket. +# Returns: +# 1 - Continue processing +# 0 - Exit server. +# +# + +sub del_id_handler { + my ($cmd,$tail,$client) = @_; + + my $userinput = "$cmd:$tail"; + + my ($udom,$what)=split(/:/,$tail); + chomp($what); + my $hashref = &tie_domain_hash($udom, "ids", &GDBM_WRCREAT(), + "D", $what); + if ($hashref) { + my @keys=split(/\&/,$what); + foreach my $key (@keys) { + delete($hashref->{$key}); + } + if (&untie_user_hash($hashref)) { + &Reply($client, "ok\n", $userinput); + } else { + &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". + "while attempting iddel\n", $userinput); + } + } else { + &Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". + "while attempting iddel\n", $userinput); + } + return 1; +} +®ister_handler("iddel", \&del_id_handler, 0, 1, 0); + # # Puts broadcast e-mail sent by Domain Coordinator in nohist_dcmail database # @@ -5233,7 +5450,7 @@ sub crsreq_checks_handler { my $userinput = "$cmd:$tail"; my $dom = $tail; my $result; - my @reqtypes = ('official','unofficial','community'); + my @reqtypes = ('official','unofficial','community','textbook'); eval { local($SIG{__DIE__})='DEFAULT'; my %validations; @@ -5260,19 +5477,20 @@ sub crsreq_checks_handler { sub validate_crsreq_handler { my ($cmd, $tail, $client) = @_; my $userinput = "$cmd:$tail"; - my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist) = split(/:/, $tail); + my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist,$customdata) = split(/:/, $tail); $instcode = &unescape($instcode); $owner = &unescape($owner); $crstype = &unescape($crstype); $inststatuslist = &unescape($inststatuslist); $instcode = &unescape($instcode); $instseclist = &unescape($instseclist); + my $custominfo = &Apache::lonnet::thaw_unescape($customdata); my $outcome; eval { local($SIG{__DIE__})='DEFAULT'; $outcome = &localenroll::validate_crsreq($dom,$owner,$crstype, $inststatuslist,$instcode, - $instseclist); + $instseclist,$custominfo); }; if (!$@) { &Reply($client, \$outcome, $userinput); @@ -5283,6 +5501,53 @@ sub validate_crsreq_handler { } ®ister_handler("autocrsreqvalidation", \&validate_crsreq_handler, 0, 1, 0); +sub crsreq_update_handler { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title,$code, + $accessstart,$accessend,$infohashref) = + split(/:/, $tail); + $crstype = &unescape($crstype); + $action = &unescape($action); + $ownername = &unescape($ownername); + $ownerdomain = &unescape($ownerdomain); + $fullname = &unescape($fullname); + $title = &unescape($title); + $code = &unescape($code); + $accessstart = &unescape($accessstart); + $accessend = &unescape($accessend); + my $incoming = &Apache::lonnet::thaw_unescape($infohashref); + my ($result,$outcome); + eval { + local($SIG{__DIE__})='DEFAULT'; + my %rtnhash; + $outcome = &localenroll::crsreq_updates($cdom,$cnum,$crstype,$action, + $ownername,$ownerdomain,$fullname, + $title,$code,$accessstart,$accessend, + $incoming,\%rtnhash); + if ($outcome eq 'ok') { + my @posskeys = qw(createdweb createdmsg createdcustomized createdactions queuedweb queuedmsg formitems reviewweb validationjs onload javascript); + foreach my $key (keys(%rtnhash)) { + if (grep(/^\Q$key\E/,@posskeys)) { + $result .= &escape($key).'='.&Apache::lonnet::freeze_escape($rtnhash{$key}).'&'; + } + } + $result =~ s/\&$//; + } + }; + if (!$@) { + if ($outcome eq 'ok') { + &Reply($client, \$result, $userinput); + } else { + &Reply($client, "format_error\n", $userinput); + } + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } + return 1; +} +®ister_handler("autocrsrequpdate", \&crsreq_update_handler, 0, 1, 0); + # # Read and retrieve institutional code format (for support form). # Formal Parameters: @@ -5990,18 +6255,6 @@ sub lcpasswdstrerror { } } -# -# Convert an error return code from lcuseradd to a string value: -# -sub lcuseraddstrerror { - my $ErrorCode = shift; - if(($ErrorCode < 0) || ($ErrorCode > $lastadderror)) { - return "lcuseradd - Unrecognized error code: ".$ErrorCode; - } else { - return $adderrors[$ErrorCode]; - } -} - # grabs exception and records it to log before exiting sub catchexception { my ($error)=@_; @@ -6490,9 +6743,26 @@ sub make_new_child { # my $tmpsnum=0; # Now global #---------------------------------------------------- kerberos 5 initialization &Authen::Krb5::init_context(); - unless (($dist eq 'fedora5') || ($dist eq 'fedora4') || - ($dist eq 'fedora6') || ($dist eq 'suse9.3') || - ($dist eq 'suse12.2')) { + + my $no_ets; + if ($dist =~ /^(?:centos|rhes|scientific)(\d+)$/) { + if ($1 >= 7) { + $no_ets = 1; + } + } elsif ($dist =~ /^suse(\d+\.\d+)$/) { + if (($1 eq '9.3') || ($1 >= 12.2)) { + $no_ets = 1; + } + } elsif ($dist =~ /^sles(\d+)$/) { + if ($1 > 11) { + $no_ets = 1; + } + } elsif ($dist =~ /^fedora(\d+)$/) { + if ($1 < 7) { + $no_ets = 1; + } + } + unless ($no_ets) { &Authen::Krb5::init_ets(); } @@ -6537,7 +6807,6 @@ sub make_new_child { # # If the remote is attempting a local init... give that a try: # - logthis("remotereq: $remotereq"); (my $i, my $inittype, $clientversion) = split(/:/, $remotereq); # For LON-CAPA 2.9, the client session will have sent its LON-CAPA # version when initiating the connection. For LON-CAPA 2.8 and older, @@ -7295,56 +7564,8 @@ sub make_passwd_file { } } } elsif ($umode eq 'unix') { - { - # - # Don't allow the creation of privileged accounts!!! that would - # be real bad!!! - # - my $uid = getpwnam($uname); - if((defined $uid) && ($uid == 0)) { - &logthis(">>>Attempt to create privileged account blocked"); - return "no_priv_account_error\n"; - } - - my $execpath ="$perlvar{'lonDaemons'}/"."lcuseradd"; - - my $lc_error_file = $execdir."/tmp/lcuseradd".$$.".status"; - { - &Debug("Executing external: ".$execpath); - &Debug("user = ".$uname.", Password =". $npass); - my $se = IO::File->new("|$execpath > $perlvar{'lonDaemons'}/logs/lcuseradd.log"); - print $se "$uname\n"; - print $se "$udom\n"; - print $se "$npass\n"; - print $se "$npass\n"; - print $se "$lc_error_file\n"; # Status -> unique file. - } - if (-r $lc_error_file) { - &Debug("Opening error file: $lc_error_file"); - my $error = IO::File->new("< $lc_error_file"); - my $useraddok = <$error>; - $error->close; - unlink($lc_error_file); - - chomp $useraddok; - - if($useraddok > 0) { - my $error_text = &lcuseraddstrerror($useraddok); - &logthis("Failed lcuseradd: $error_text"); - $result = "lcuseradd_failed:$error_text"; - } else { - my $pf = IO::File->new(">$passfilename"); - if($pf) { - print $pf "unix:\n"; - } else { - $result = "pass_file_failed_error"; - } - } - } else { - &Debug("Could not locate lcuseradd error: $lc_error_file"); - $result="bug_lcuseradd_no_output_file"; - } - } + &logthis(">>>Attempt to create unix account blocked -- unix auth not available for new users."); + $result="no_new_unix_accounts"; } elsif ($umode eq 'none') { { my $pf = IO::File->new("> $passfilename"); @@ -7594,7 +7815,7 @@ Allow for a password to be set. Make a user. -=item passwd +=item changeuserauth Allow for authentication mechanism and password to be changed. @@ -7683,6 +7904,10 @@ for each student, defined perhaps by the Returns usernames corresponding to IDs. (These "IDs" are unique identifiers for each student, defined perhaps by the institutional Registrar.) +=item iddel + +Deletes one or more ids in a domain's id database. + =item tmpput Accept and store information in temporary space.