--- loncom/lond 2013/03/02 03:31:10 1.489.2.3
+++ loncom/lond 2014/04/16 14:39:59 1.508
@@ -2,7 +2,7 @@
# The LearningOnline Network
# lond "LON Daemon" Server (port "LOND" 5663)
#
-# $Id: lond,v 1.489.2.3 2013/03/02 03:31:10 raeburn Exp $
+# $Id: lond,v 1.508 2014/04/16 14:39:59 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -34,6 +34,7 @@ use strict;
use lib '/home/httpd/lib/perl/';
use LONCAPA;
use LONCAPA::Configuration;
+use LONCAPA::Lond;
use IO::Socket;
use IO::File;
@@ -60,7 +61,7 @@ my $DEBUG = 0; # Non zero to ena
my $status='';
my $lastlog='';
-my $VERSION='$Revision: 1.489.2.3 $'; #' stupid emacs
+my $VERSION='$Revision: 1.508 $'; #' stupid emacs
my $remoteVERSION;
my $currenthostid="default";
my $currentdomainid;
@@ -129,32 +130,13 @@ my @passwderrors = ("ok",
"pwchange_failure - lcpasswd Error filename is invalid");
-# The array below are lcuseradd error strings.:
-
-my $lastadderror = 13;
-my @adderrors = ("ok",
- "User ID mismatch, lcuseradd must run as user www",
- "lcuseradd Incorrect number of command line parameters must be 3",
- "lcuseradd Incorrect number of stdinput lines, must be 3",
- "lcuseradd Too many other simultaneous pwd changes in progress",
- "lcuseradd User does not exist",
- "lcuseradd Unable to make www member of users's group",
- "lcuseradd Unable to su to root",
- "lcuseradd Unable to set password",
- "lcuseradd Username has invalid characters",
- "lcuseradd Password has an invalid character",
- "lcuseradd User already exists",
- "lcuseradd Could not add user.",
- "lcuseradd Password mismatch");
-
-
# This array are the errors from lcinstallfile:
my @installerrors = ("ok",
"Initial user id of client not that of www",
"Usage error, not enough command line arguments",
- "Source file name does not exist",
- "Destination file name does not exist",
+ "Source filename does not exist",
+ "Destination filename does not exist",
"Some file operation failed",
"Invalid table filename."
);
@@ -1703,8 +1685,14 @@ sub read_lonnet_global {
sub server_devalidatecache_handler {
my ($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,$userinput);
return 1;
@@ -1906,12 +1894,8 @@ sub authenticate_handler {
if (ref($hostedsession) eq 'HASH') {
$hosted = $hostedsession->{'hosted'};
}
- my $loncaparev = $clientversion;
- if ($loncaparev eq '') {
- $loncaparev = $Apache::lonnet::loncaparevs{$clientname};
- }
$canhost = &Apache::lonnet::can_host_session($udom,$clientname,
- $loncaparev,
+ $clientversion,
$remote,$hosted);
}
}
@@ -2134,10 +2118,9 @@ 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, $npass);
@@ -2155,15 +2138,8 @@ sub change_authentication_handler {
# re-run manage_permissions for that role in order to be able
# to take ownership of the construction space back to www:www
#
-
-
- if( (($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, $userinput);
}
@@ -3197,6 +3173,17 @@ sub get_profile_keys {
sub dump_profile_database {
my ($cmd, $tail, $client) = @_;
+ my $res = LONCAPA::Lond::dump_profile_database($tail);
+
+ if ($res =~ /^error:/) {
+ Failure($client, \$res, "$cmd:$tail");
+ } else {
+ Reply($client, \$res, "$cmd:$tail");
+ }
+
+ return 1;
+
+ #TODO remove
my $userinput = "$cmd:$tail";
my ($udom,$uname,$namespace) = split(/:/,$tail);
@@ -3275,121 +3262,12 @@ sub dump_profile_database {
sub dump_with_regexp {
my ($cmd, $tail, $client) = @_;
-
- my $userinput = "$cmd:$tail";
-
- my ($udom,$uname,$namespace,$regexp,$range)=split(/:/,$tail);
- if (defined($regexp)) {
- $regexp=&unescape($regexp);
- } else {
- $regexp='.';
- }
- my ($start,$end);
- if (defined($range)) {
- if ($range =~/^(\d+)\-(\d+)$/) {
- ($start,$end) = ($1,$2);
- } elsif ($range =~/^(\d+)$/) {
- ($start,$end) = (0,$1);
- } else {
- undef($range);
- }
- }
- my $hashref = &tie_user_hash($udom, $uname, $namespace,
- &GDBM_READER());
- if ($hashref) {
- my $qresult='';
- my $count=0;
-#
-# When dump is for roles.db, determine if LON-CAPA version checking is needed.
-# Sessions on 2.10 and later do not require version checking, as that occurs
-# on the server hosting the user session, when constructing the roles/courses
-# screen).
-#
- my $skipcheck;
- my @ids = &Apache::lonnet::current_machine_ids();
- my (%homecourses,$major,$minor,$now);
-#
-# If dump is for roles.db from a pre-2.10 server, determine the LON-CAPA
-# version on the server which requested the data. 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, the version is retrieved from
-# the global %loncaparevs in lonnet.pm.
-#
-#
- if ($namespace eq 'roles') {
- my $loncaparev = $clientversion;
- if ($loncaparev eq '') {
- $loncaparev = $Apache::lonnet::loncaparevs{$clientname};
- }
- if ($loncaparev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?/) {
- $major = $1;
- $minor = $2;
- }
- if (($major > 2) || (($major == 2) && ($minor > 9))) {
- $skipcheck = 1;
- }
- $now = time;
- }
- while (my ($key,$value) = each(%$hashref)) {
- if (($namespace eq 'roles') && (!$skipcheck)) {
- if ($key =~ m{^/($LONCAPA::match_domain)/($LONCAPA::match_courseid)(/?[^_]*)_(cc|co|in|ta|ep|ad|st|cr)$}) {
- my $cdom = $1;
- my $cnum = $2;
- my ($role,$roleend,$rolestart) = split(/\_/,$value);
- if (!$roleend || $roleend > $now) {
-#
-# For active course roles, check that requesting server is running a LON-CAPA
-# version which meets any version requirements for the course. Do not include
-# the role amongst the results returned if the requesting server's version is
-# too old.
-#
-# This determination is handled differently depending on whether the course's
-# homeserver is the current server, or whether it is a different server.
-# In both cases, the course's version requirement needs to be retrieved.
-#
- next unless (&releasereqd_check($cnum,$cdom,$key,$value,$major,
- $minor,\%homecourses,\@ids));
- }
- }
- }
- if ($regexp eq '.') {
- $count++;
- if (defined($range) && $count >= $end) { last; }
- if (defined($range) && $count < $start) { next; }
- $qresult.=$key.'='.$value.'&';
- } else {
- my $unescapeKey = &unescape($key);
- if (eval('$unescapeKey=~/$regexp/')) {
- $count++;
- if (defined($range) && $count >= $end) { last; }
- if (defined($range) && $count < $start) { next; }
- $qresult.="$key=$value&";
- }
- }
- }
- if (&untie_user_hash($hashref)) {
-#
-# If dump is for roles.db from a pre-2.10 server, check if the LON-CAPA
-# version requirements for courses for which the current server is the home
-# server permit course roles to be usable on the client server hosting the
-# user's session. If so, include those role results in the data returned to
-# the client server.
-#
- if (($namespace eq 'roles') && (!$skipcheck)) {
- if (keys(%homecourses) > 0) {
- $qresult .= &check_homecourses(\%homecourses,$regexp,$count,
- $range,$start,$end,$major,$minor);
- }
- }
- chop($qresult);
- &Reply($client, \$qresult, $userinput);
- } else {
- &Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ".
- "while attempting dump\n", $userinput);
- }
+ my $res = LONCAPA::Lond::dump_with_regexp($tail, $clientversion);
+
+ if ($res =~ /^error:/) {
+ Failure($client, \$res, "$cmd:$tail");
} else {
- &Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".
- "while attempting dump\n", $userinput);
+ Reply($client, \$res, "$cmd:$tail");
}
return 1;
@@ -3959,7 +3837,9 @@ 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:
@@ -3968,12 +3848,23 @@ sub put_course_id_hash_handler {
# a reply is written to $client.
sub dump_course_id_handler {
my ($cmd, $tail, $client) = @_;
+
+ my $res = LONCAPA::Lond::dump_course_id_handler($tail);
+ if ($res =~ /^error:/) {
+ Failure($client, \$res, "$cmd:$tail");
+ } else {
+ Reply($client, \$res, "$cmd:$tail");
+ }
+
+ return 1;
+
+ #TODO remove
my $userinput = "$cmd:$tail";
my ($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)) {
@@ -4046,6 +3937,9 @@ sub dump_course_id_handler {
} else {
$creationcontext = '.';
}
+ unless ($hasuniquecode) {
+ $hasuniquecode = '.';
+ }
my $unpack = 1;
if ($description eq '.' && $instcodefilter eq '.' && $ownerfilter eq '.' &&
$typefilter eq '.') {
@@ -4134,6 +4028,9 @@ 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)) {
@@ -4556,6 +4453,49 @@ 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
#
@@ -5323,7 +5263,7 @@ 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;
@@ -5350,19 +5290,20 @@ 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, $userinput);
@@ -5373,6 +5314,49 @@ sub validate_crsreq_handler {
}
®ister_handler("autocrsreqvalidation", \&validate_crsreq_handler, 0, 1, 0);
+sub crsreq_update_handler {
+ my ($cmd, $tail, $client) = @_;
+ my $userinput = "$cmd:$tail";
+ my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title,$code,$infohashref) =
+ split(/:/, $tail);
+ $crstype = &unescape($crstype);
+ $action = &unescape($action);
+ $ownername = &unescape($ownername);
+ $ownerdomain = &unescape($ownerdomain);
+ $fullname = &unescape($fullname);
+ $title = &unescape($title);
+ $code = &unescape($code);
+ 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,$incoming,\%rtnhash);
+ if ($outcome eq 'ok') {
+ my @posskeys = qw(createdweb createdmsg queuedweb queuedmsg formitems reviewweb);
+ 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:
@@ -6080,18 +6064,6 @@ 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)=@_;
@@ -6332,6 +6304,9 @@ sub Debug {
# reply - Text to send to client.
# request - Original request from client.
#
+#NOTE $reply must be terminated by exactly *one* \n. If $reply is a reference
+#this is done automatically ($$reply must not contain any \n in this case).
+#If $reply is a string the caller has to ensure this.
sub Reply {
my ($fd, $reply, $request) = @_;
if (ref($reply)) {
@@ -6579,7 +6554,8 @@ sub make_new_child {
&Authen::Krb5::init_context();
unless (($dist eq 'fedora5') || ($dist eq 'fedora4') ||
($dist eq 'fedora6') || ($dist eq 'suse9.3') ||
- ($dist eq 'suse12.2')) {
+ ($dist eq 'suse12.2') || ($dist eq 'suse12.3') ||
+ ($dist eq 'suse13.1')) {
&Authen::Krb5::init_ets();
}
@@ -6624,7 +6600,14 @@ sub make_new_child {
#
# If the remote is attempting a local init... give that a try:
#
+ logthis("remotereq: $remotereq");
(my $i, my $inittype, $clientversion) = split(/:/, $remotereq);
+ # For LON-CAPA 2.9, the client session will have sent its LON-CAPA
+ # version when initiating the connection. For LON-CAPA 2.8 and older,
+ # the version is retrieved from the global %loncaparevs in lonnet.pm.
+ # $clientversion contains path to keyfile if $inittype eq 'local'
+ # it's overridden below in this case
+ $clientversion ||= $Apache::lonnet::loncaparevs{$clientname};
# If the connection type is ssl, but I didn't get my
# certificate files yet, then I'll drop back to
@@ -7375,56 +7358,8 @@ sub make_passwd_file {
}
}
} elsif ($umode eq 'unix') {
- {
- #
- # Don't allow the creation of privileged accounts!!! that would
- # be real bad!!!
- #
- my $uid = getpwnam($uname);
- if((defined $uid) && ($uid == 0)) {
- &logthis(">>>Attempt to create privileged account blocked");
- return "no_priv_account_error\n";
- }
-
- my $execpath ="$perlvar{'lonDaemons'}/"."lcuseradd";
-
- my $lc_error_file = $execdir."/tmp/lcuseradd".$$.".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");
@@ -7488,234 +7423,8 @@ sub get_usersession_config {
return;
}
-#
-# releasereqd_check() will determine if a LON-CAPA version (defined in the
-# $major,$minor args passed) is not too old to allow use of a role in a
-# course ($cnum,$cdom args passed), if at least one of the following applies:
-# (a) the course is a Community, (b) the course's home server is *not* the
-# current server, or (c) cached course information is not stale.
-#
-# For the case where none of these apply, the course is added to the
-# $homecourse hash ref (keys = courseIDs, values = array of a hash of roles).
-# The $homecourse hash ref is for courses for which the current server is the
-# home server. LON-CAPA version requirements are checked elsewhere for the
-# items in $homecourse.
-#
-
-sub releasereqd_check {
- my ($cnum,$cdom,$key,$value,$major,$minor,$homecourses,$ids) = @_;
- my $home = &Apache::lonnet::homeserver($cnum,$cdom);
- return if ($home eq 'no_host');
- my ($reqdmajor,$reqdminor,$displayrole);
- if ($cnum =~ /$LONCAPA::match_community/) {
- if ($major eq '' && $minor eq '') {
- return unless ((ref($ids) eq 'ARRAY') &&
- (grep(/^\Q$home\E$/,@{$ids})));
- } else {
- $reqdmajor = 2;
- $reqdminor = 9;
- return unless (&useable_role($reqdmajor,$reqdminor,$major,$minor));
- }
- }
- my $hashid = $cdom.':'.$cnum;
- my ($courseinfo,$cached) =
- &Apache::lonnet::is_cached_new('courseinfo',$hashid);
- if (defined($cached)) {
- if (ref($courseinfo) eq 'HASH') {
- if (exists($courseinfo->{'releaserequired'})) {
- my ($reqdmajor,$reqdminor) = split(/\./,$courseinfo->{'releaserequired'});
- return unless (&useable_role($reqdmajor,$reqdminor,$major,$minor));
- }
- }
- } else {
- if (ref($ids) eq 'ARRAY') {
- if (grep(/^\Q$home\E$/,@{$ids})) {
- if (ref($homecourses) eq 'HASH') {
- if (ref($homecourses->{$cdom}) eq 'HASH') {
- if (ref($homecourses->{$cdom}{$cnum}) eq 'HASH') {
- if (ref($homecourses->{$cdom}{$cnum}) eq 'ARRAY') {
- push(@{$homecourses->{$cdom}{$cnum}},{$key=>$value});
- } else {
- $homecourses->{$cdom}{$cnum} = [{$key=>$value}];
- }
- } else {
- $homecourses->{$cdom}{$cnum} = [{$key=>$value}];
- }
- } else {
- $homecourses->{$cdom}{$cnum} = [{$key=>$value}];
- }
- }
- return;
- }
- }
- my $courseinfo = &get_courseinfo_hash($cnum,$cdom,$home);
- if (ref($courseinfo) eq 'HASH') {
- if (exists($courseinfo->{'releaserequired'})) {
- my ($reqdmajor,$reqdminor) = split(/\./,$courseinfo->{'releaserequired'});
- return unless (&useable_role($reqdmajor,$reqdminor,$major,$minor));
- }
- } else {
- return;
- }
- }
- return 1;
-}
-
-#
-# get_courseinfo_hash() is used to retrieve course information from the db
-# file: nohist_courseids.db for a course for which the current server is *not*
-# the home server.
-#
-# A hash of a hash will be retrieved. The outer hash contains a single key --
-# courseID -- for the course for which the data are being requested.
-# The contents of the inner hash, for that single item in the outer hash
-# are returned (and cached in memcache for 10 minutes).
-#
-
-sub get_courseinfo_hash {
- my ($cnum,$cdom,$home) = @_;
- my %info;
- eval {
- local($SIG{ALRM}) = sub { die "timeout\n"; };
- local($SIG{__DIE__})='DEFAULT';
- alarm(3);
- %info = &Apache::lonnet::courseiddump($cdom,'.',1,'.','.',$cnum,1,[$home],'.');
- alarm(0);
- };
- if ($@) {
- if ($@ eq "timeout\n") {
- &logthis("<font color='blue'>WARNING courseiddump for $cnum:$cdom from $home timedout</font>");
- } else {
- &logthis("<font color='yellow'>WARNING unexpected error during eval of call for courseiddump from $home</font>");
- }
- } else {
- if (ref($info{$cdom.'_'.$cnum}) eq 'HASH') {
- my $hashid = $cdom.':'.$cnum;
- return &Apache::lonnet::do_cache_new('courseinfo',$hashid,$info{$cdom.'_'.$cnum},600);
- }
- }
- return;
-}
-
-#
-# check_homecourses() will retrieve course information for those courses which
-# are keys of the $homecourses hash ref (first arg). The nohist_courseids.db
-# GDBM file is tied and course information for each course retrieved. Last
-# visit (lasttime key) is also retrieved for each, and cached values updated
-# for any courses last visited less than 24 hours ago. Cached values are also
-# updated for any courses included in the $homecourses hash ref.
-#
-# The reason for the 24 hours constraint is that the cron entry in
-# /etc/cron.d/loncapa for /home/httpd/perl/refresh_courseids_db.pl causes
-# cached course information to be updated nightly for courses with activity
-# within the past 24 hours.
-#
-# Role information for the user (included in a ref to an array of hashes as the
-# value for each key in $homecourses) is appended to the result returned by the
-# routine, which will in turn be appended to the string returned to the client
-# hosting the user's session.
-#
-
-sub check_homecourses {
- my ($homecourses,$regexp,$count,$range,$start,$end,$major,$minor) = @_;
- my ($result,%addtocache);
- my $yesterday = time - 24*3600;
- if (ref($homecourses) eq 'HASH') {
- my (%okcourses,%courseinfo,%recent);
- foreach my $domain (keys(%{$homecourses})) {
- my $hashref =
- &tie_domain_hash($domain, "nohist_courseids", &GDBM_WRCREAT());
- if (ref($hashref) eq 'HASH') {
- while (my ($key,$value) = each(%$hashref)) {
- my $unesc_key = &unescape($key);
- if ($unesc_key =~ /^lasttime:(\w+)$/) {
- my $cid = $1;
- $cid =~ s/_/:/;
- if ($value > $yesterday ) {
- $recent{$cid} = 1;
- }
- next;
- }
- my $items = &Apache::lonnet::thaw_unescape($value);
- if (ref($items) eq 'HASH') {
- my ($cdom,$cnum) = split(/_/,$unesc_key);
- my $hashid = $cdom.':'.$cnum;
- $courseinfo{$hashid} = $items;
- if (ref($homecourses->{$cdom}{$cnum}) eq 'ARRAY') {
- my ($reqdmajor,$reqdminor) = split(/\./,$items->{'releaserequired'});
- if (&useable_role($reqdmajor,$reqdminor,$major,$minor)) {
- $okcourses{$hashid} = 1;
- }
- }
- }
- }
- unless (&untie_domain_hash($hashref)) {
- &logthis("Failed to untie tied hash for nohist_courseids.db for $domain");
- }
- } else {
- &logthis("Failed to tie hash for nohist_courseids.db for $domain");
- }
- }
- foreach my $hashid (keys(%recent)) {
- my ($result,$cached)=&Apache::lonnet::is_cached_new('courseinfo',$hashid);
- unless ($cached) {
- &Apache::lonnet::do_cache_new('courseinfo',$hashid,$courseinfo{$hashid},600);
- }
- }
- foreach my $cdom (keys(%{$homecourses})) {
- if (ref($homecourses->{$cdom}) eq 'HASH') {
- foreach my $cnum (keys(%{$homecourses->{$cdom}})) {
- my $hashid = $cdom.':'.$cnum;
- next if ($recent{$hashid});
- &Apache::lonnet::do_cache_new('courseinfo',$hashid,$courseinfo{$hashid},600);
- }
- }
- }
- foreach my $hashid (keys(%okcourses)) {
- my ($cdom,$cnum) = split(/:/,$hashid);
- if ((ref($homecourses->{$cdom}) eq 'HASH') &&
- (ref($homecourses->{$cdom}{$cnum}) eq 'ARRAY')) {
- foreach my $role (@{$homecourses->{$cdom}{$cnum}}) {
- if (ref($role) eq 'HASH') {
- while (my ($key,$value) = each(%{$role})) {
- if ($regexp eq '.') {
- $count++;
- if (defined($range) && $count >= $end) { last; }
- if (defined($range) && $count < $start) { next; }
- $result.=$key.'='.$value.'&';
- } else {
- my $unescapeKey = &unescape($key);
- if (eval('$unescapeKey=~/$regexp/')) {
- $count++;
- if (defined($range) && $count >= $end) { last; }
- if (defined($range) && $count < $start) { next; }
- $result.="$key=$value&";
- }
- }
- }
- }
- }
- }
- }
- }
- return $result;
-}
-#
-# useable_role() will compare the LON-CAPA version required by a course with
-# the version available on the client server. If the client server's version
-# is compatible, 1 will be returned.
-#
-sub useable_role {
- my ($reqdmajor,$reqdminor,$major,$minor) = @_;
- if ($reqdmajor ne '' && $reqdminor ne '') {
- return if (($major eq '' && $minor eq '') ||
- ($major < $reqdmajor) ||
- (($major == $reqdmajor) && ($minor < $reqdminor)));
- }
- return 1;
-}
sub distro_and_arch {
return $dist.':'.$arch;
@@ -8045,6 +7754,8 @@ Authen::Krb5
=head1 COREQUISITES
+none
+
=head1 OSNAMES
linux
@@ -8132,9 +7843,9 @@ or the CA's certificate in the call to l
<error> is the textual reason this failed. Usual reasons:
=over 2
-
+
=item Apache config file for loncapa incorrect:
-
+
one of the variables
lonCertificateDirectory, lonnetCertificateAuthority, or lonnetCertificate
undefined or incorrect
@@ -8253,7 +7964,7 @@ Could not rewrite the
internal password file for a user
=item Result of password change for <user> : <result>
-
+
A unix password change for <user> was attempted
and the pipe returned <result>
@@ -8282,7 +7993,7 @@ lond has been asked to exit by its clien
client systemand <input> is the full exit command sent to the server.
=item Red CRITICAL: ABNORMAL EXIT. child <pid> for server <hostname> died through a crass with this error->[<message>].
-
+
A lond child terminated. NOte that this termination can also occur when the
child receives the QUIT or DIE signals. <pid> is the process id of the child,
<hostname> the host lond is working for, and <message> the reason the child died
@@ -8366,7 +8077,7 @@ file when sent it's USR1 signal. That p
assumed to be hung in some un-fixable way.
=item Finished checking children
-
+
Master processs's USR1 processing is cojmplete.
=item (Red) CRITICAL: ------- Starting ------
@@ -8380,7 +8091,7 @@ Started a new child process for <client>
connected to the child. This was as a result of a TCP/IP connection from a client.
=item Unable to determine who caller was, getpeername returned nothing
-
+
In child process initialization. either getpeername returned undef or
a zero sized object was returned. Processing continues, but in my opinion,
this should be cause for the child to exit.
@@ -8391,7 +8102,7 @@ In child process initialization. The pe
The client address is stored as "Unavailable" and processing continues.
=item (Yellow) INFO: Connection <ip> <name> connection type = <type>
-
+
In child initialization. A good connectionw as received from <ip>.
=over 2
@@ -8441,7 +8152,7 @@ The client (<client> is the peer's name
negotiated an SSL connection with this child process.
=item (Green) Successful insecure authentication with <client>
-
+
The client has successfully negotiated an insecure connection withthe child process.