--- loncom/lonnet/perl/lonnet.pm 2013/01/03 19:59:47 1.1172.2.16
+++ loncom/lonnet/perl/lonnet.pm 2013/02/05 21:32:49 1.1212
@@ -1,7 +1,7 @@
# The LearningOnline Network
# TCP networking package
#
-# $Id: lonnet.pm,v 1.1172.2.16 2013/01/03 19:59:47 raeburn Exp $
+# $Id: lonnet.pm,v 1.1212 2013/02/05 21:32:49 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -75,6 +75,9 @@ use LWP::UserAgent();
use HTTP::Date;
use Image::Magick;
+
+use Encode;
+
use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir
$_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease
%managerstab);
@@ -97,6 +100,7 @@ use File::MMagic;
use LONCAPA qw(:DEFAULT :match);
use LONCAPA::Configuration;
use LONCAPA::lonmetadata;
+use LONCAPA::Lond;
use File::Copy;
@@ -108,6 +112,7 @@ require Exporter;
our @ISA = qw (Exporter);
our @EXPORT = qw(%env);
+
# ------------------------------------ Logging (parameters, docs, slots, roles)
{
my $logid;
@@ -122,19 +127,19 @@ our @EXPORT = qw(%env);
$logid ++;
my $now = time();
my $id=$now.'00000'.$$.'00000'.$logid;
- my $logentry = {
- $id => {
- 'exe_uname' => $env{'user.name'},
- 'exe_udom' => $env{'user.domain'},
- 'exe_time' => $now,
- 'exe_ip' => $ENV{'REMOTE_ADDR'},
- 'delflag' => $delflag,
- 'logentry' => $storehash,
- 'uname' => $uname,
- 'udom' => $udom,
- }
+ my $logentry = {
+ $id => {
+ 'exe_uname' => $env{'user.name'},
+ 'exe_udom' => $env{'user.domain'},
+ 'exe_time' => $now,
+ 'exe_ip' => $ENV{'REMOTE_ADDR'},
+ 'delflag' => $delflag,
+ 'logentry' => $storehash,
+ 'uname' => $uname,
+ 'udom' => $udom,
+ }
};
- return &put('nohist_'.$hash_name,$logentry,$cdom,$cnum);
+ return &put('nohist_'.$hash_name,$logentry,$cdom,$cnum);
}
}
@@ -629,6 +634,13 @@ sub check_for_valid_session {
|| !defined($disk_env{'user.domain'})) {
return undef;
}
+ if ($r->user() eq '') {
+ if ($disk_env{'user.domain'} eq $r->dir_config('lonDefDomain')) {
+ $r->user($disk_env{'user.name'});
+ } else {
+ $r->user($disk_env{'user.name'}.':'.$disk_env{'user.domain'});
+ }
+ }
return $handle;
}
@@ -1261,7 +1273,7 @@ sub check_loadbalancing {
}
}
if (ref($result) eq 'HASH') {
- ($is_balancer,$currtargets,$currrules) =
+ ($is_balancer,$currtargets,$currrules) =
&check_balancer_result($result,@hosts);
if ($is_balancer) {
if (ref($currrules) eq 'HASH') {
@@ -1320,7 +1332,7 @@ sub check_loadbalancing {
}
}
if (ref($result) eq 'HASH') {
- ($is_balancer,$currtargets,$currrules) =
+ ($is_balancer,$currtargets,$currrules) =
&check_balancer_result($result,@hosts);
if ($is_balancer) {
if (ref($currrules) eq 'HASH') {
@@ -1376,8 +1388,8 @@ sub check_loadbalancing {
$is_balancer = 0;
if ($uname ne '' && $udom ne '') {
if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) {
-
- &appenv({'user.loadbalexempt' => $lonhost,
+
+ &appenv({'user.loadbalexempt' => $lonhost,
'user.loadbalcheck.time' => time});
}
}
@@ -2605,10 +2617,13 @@ sub ssi {
$request->header(Cookie => $ENV{'HTTP_COOKIE'});
my $response= $ua->request($request);
+ my $content = $response->content;
+
+
if (wantarray) {
- return ($response->content, $response);
+ return ($content, $response);
} else {
- return $response->content;
+ return $content;
}
}
@@ -2640,7 +2655,7 @@ sub allowuploaded {
#
# Determine if the current user should be able to edit a particular resource,
# when viewing in course context.
-# (a) When viewing resource used to determine if "Edit" item is included in
+# (a) When viewing resource used to determine if "Edit" item is included in
# Functions.
# (b) When displaying folder contents in course editor, used to determine if
# "Edit" link will be displayed alongside resource.
@@ -2648,12 +2663,12 @@ sub allowuploaded {
# input: six args -- filename (decluttered), course number, course domain,
# url, symb (if registered) and group (if this is a group
# item -- e.g., bulletin board, group page etc.).
-# output: array of five scalars --
+# output: array of five scalars --
# $cfile -- url for file editing if editable on current server
# $home -- homeserver of resource (i.e., for author if published,
# or course if uploaded.).
# $switchserver -- 1 if server switch will be needed.
-# $forceedit -- 1 if icon/link should be to go to edit mode
+# $forceedit -- 1 if icon/link should be to go to edit mode
# $forceview -- 1 if icon/link should be to go to view mode
#
@@ -2742,7 +2757,7 @@ sub can_edit_resource {
$forceedit = 1;
}
$cfile = $resurl;
- } elsif (($resurl ne '') && (&is_on_map($resurl))) {
+ } elsif (($resurl ne '') && (&is_on_map($resurl))) {
if ($resurl =~ m{^/adm/$match_domain/$match_username/\d+/smppg|bulletinboard$}) {
$incourse = 1;
if ($env{'form.forceedit'}) {
@@ -2773,7 +2788,7 @@ sub can_edit_resource {
}
} elsif ($resurl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
my $template = '/res/lib/templates/simpleproblem.problem';
- if (&is_on_map($template)) {
+ if (&is_on_map($template)) {
$incourse = 1;
$forceview = 1;
$cfile = $template;
@@ -2813,7 +2828,7 @@ sub can_edit_resource {
$cfile=$file;
}
}
- if (($cfile ne '') && (!$incourse || $uploaded) &&
+ if (($cfile ne '') && (!$incourse || $uploaded) &&
(($home ne '') && ($home ne 'no_host'))) {
my @ids=¤t_machine_ids();
unless (grep(/^\Q$home\E$/,@ids)) {
@@ -4120,18 +4135,32 @@ sub courseiddump {
if (($domfilter eq '') ||
(&host_domain($tryserver) eq $domfilter)) {
- my $rep =
- &reply('courseiddump:'.&host_domain($tryserver).':'.
- $sincefilter.':'.&escape($descfilter).':'.
- &escape($instcodefilter).':'.&escape($ownerfilter).
- ':'.&escape($coursefilter).':'.&escape($typefilter).
- ':'.&escape($regexp_ok).':'.$as_hash.':'.
- &escape($selfenrollonly).':'.&escape($catfilter).':'.
- $showhidden.':'.$caller.':'.&escape($cloner).':'.
- &escape($cc_clone).':'.$cloneonly.':'.
- &escape($createdbefore).':'.&escape($createdafter).':'.
- &escape($creationcontext).':'.$domcloner,
- $tryserver);
+ my $rep;
+ if (grep { $_ eq $tryserver } current_machine_ids()) {
+ $rep = LONCAPA::Lond::dump_course_id_handler(
+ join(":", (&host_domain($tryserver), $sincefilter,
+ &escape($descfilter), &escape($instcodefilter),
+ &escape($ownerfilter), &escape($coursefilter),
+ &escape($typefilter), &escape($regexp_ok),
+ $as_hash, &escape($selfenrollonly),
+ &escape($catfilter), $showhidden, $caller,
+ &escape($cloner), &escape($cc_clone), $cloneonly,
+ &escape($createdbefore), &escape($createdafter),
+ &escape($creationcontext), $domcloner)));
+ } else {
+ $rep = &reply('courseiddump:'.&host_domain($tryserver).':'.
+ $sincefilter.':'.&escape($descfilter).':'.
+ &escape($instcodefilter).':'.&escape($ownerfilter).
+ ':'.&escape($coursefilter).':'.&escape($typefilter).
+ ':'.&escape($regexp_ok).':'.$as_hash.':'.
+ &escape($selfenrollonly).':'.&escape($catfilter).':'.
+ $showhidden.':'.$caller.':'.&escape($cloner).':'.
+ &escape($cc_clone).':'.$cloneonly.':'.
+ &escape($createdbefore).':'.&escape($createdafter).':'.
+ &escape($creationcontext).':'.$domcloner,
+ $tryserver);
+ }
+
my @pairs=split(/\&/,$rep);
foreach my $item (@pairs) {
my ($key,$value)=split(/\=/,$item,2);
@@ -5375,12 +5404,37 @@ sub del {
# -------------------------------------------------------------- dump interface
+sub unserialize {
+ my ($rep, $escapedkeys) = @_;
+
+ return {} if $rep =~ /^error/;
+
+ my %returnhash=();
+ foreach my $item (split /\&/, $rep) {
+ my ($key, $value) = split(/=/, $item, 2);
+ $key = unescape($key) unless $escapedkeys;
+ next if $key =~ /^error: 2 /;
+ $returnhash{$key} = Apache::lonnet::thaw_unescape($value);
+ }
+ #return %returnhash;
+ return \%returnhash;
+}
+
+# see Lond::dump_with_regexp
+# if $escapedkeys hash keys won't get unescaped.
sub dump {
- my ($namespace,$udomain,$uname,$regexp,$range)=@_;
+ my ($namespace,$udomain,$uname,$regexp,$range,$escapedkeys)=@_;
if (!$udomain) { $udomain=$env{'user.domain'}; }
if (!$uname) { $uname=$env{'user.name'}; }
my $uhome=&homeserver($uname,$udomain);
+ my $reply;
+ if (grep { $_ eq $uhome } current_machine_ids()) {
+ # user is hosted on this machine
+ $reply = LONCAPA::Lond::dump_with_regexp(join(":", ($udomain,
+ $uname, $namespace, $regexp, $range)), $loncaparevs{$uhome});
+ return %{unserialize($reply, $escapedkeys)};
+ }
if ($regexp) {
$regexp=&escape($regexp);
} else {
@@ -5392,7 +5446,8 @@ sub dump {
if (!($rep =~ /^error/ )) {
foreach my $item (@pairs) {
my ($key,$value)=split(/=/,$item,2);
- $key = &unescape($key);
+ $key = unescape($key) unless $escapedkeys;
+ #$key = &unescape($key);
next if ($key =~ /^error: 2 /);
$returnhash{$key}=&thaw_unescape($value);
}
@@ -5405,23 +5460,9 @@ sub dump {
sub dumpstore {
my ($namespace,$udomain,$uname,$regexp,$range)=@_;
- if (!$udomain) { $udomain=$env{'user.domain'}; }
- if (!$uname) { $uname=$env{'user.name'}; }
- my $uhome=&homeserver($uname,$udomain);
- if ($regexp) {
- $regexp=&escape($regexp);
- } else {
- $regexp='.';
- }
- my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
- my @pairs=split(/\&/,$rep);
- my %returnhash=();
- foreach my $item (@pairs) {
- my ($key,$value)=split(/=/,$item,2);
- next if ($key =~ /^error: 2 /);
- $returnhash{$key}=&thaw_unescape($value);
- }
- return %returnhash;
+ # same as dump but keys must be escaped. They may contain colon separated
+ # lists of values that may themself contain colons (e.g. symbs).
+ return &dump($namespace, $udomain, $uname, $regexp, $range, 1);
}
# -------------------------------------------------------------- keys interface
@@ -5447,7 +5488,15 @@ sub currentdump {
$sdom = $env{'user.domain'} if (! defined($sdom));
$sname = $env{'user.name'} if (! defined($sname));
my $uhome = &homeserver($sname,$sdom);
- my $rep=reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
+ my $rep;
+
+ if (grep { $_ eq $uhome } current_machine_ids()) {
+ $rep = LONCAPA::Lond::dump_profile_database(join(":", ($sdom, $sname,
+ $courseid)));
+ } else {
+ $rep = reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
+ }
+
return if ($rep =~ /^(error:|no_such_host)/);
#
my %returnhash=();
@@ -5690,13 +5739,13 @@ sub tmpdel {
return &reply("tmpdel:$token",$server);
}
-# ------------------------------------------------------------ get_timebased_id
+# ------------------------------------------------------------ get_timebased_id
sub get_timebased_id {
my ($prefix,$keyid,$namespace,$cdom,$cnum,$idtype,$who,$locktries,
$maxtries) = @_;
my ($newid,$error,$dellock);
- unless (($prefix =~ /^\w+$/) && ($keyid =~ /^\w+$/) && ($namespace ne '')) {
+ unless (($prefix =~ /^\w+$/) && ($keyid =~ /^\w+$/) && ($namespace ne '')) {
return ('','ok','invalid call to get suffix');
}
@@ -5710,7 +5759,7 @@ sub get_timebased_id {
if (!$maxtries) {
$maxtries = 10;
}
-
+
if (($cdom eq '') || ($cnum eq '')) {
if ($env{'request.course.id'}) {
$cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
@@ -6060,7 +6109,7 @@ sub usertools_access {
my ($toolstatus,$inststatus,$envkey);
if ($context eq 'requestauthor') {
- $envkey = $context;
+ $envkey = $context;
} else {
$envkey = $context.'.'.$tool;
}
@@ -7930,7 +7979,7 @@ sub assignrole {
}
}
} elsif ($context eq 'requestauthor') {
- if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
+ if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
($url eq '/'.$udom.'/') && ($role eq 'au')) {
if ($env{'environment.requestauthor'} eq 'automatic') {
$refused = '';
@@ -7938,13 +7987,13 @@ sub assignrole {
my %domdefaults = &get_domain_defaults($udom);
if (ref($domdefaults{'requestauthor'}) eq 'HASH') {
my $checkbystatus;
- if ($env{'user.adv'}) {
+ if ($env{'user.adv'}) {
my $disposition = $domdefaults{'requestauthor'}{'_LC_adv'};
if ($disposition eq 'automatic') {
$refused = '';
} elsif ($disposition eq '') {
$checkbystatus = 1;
- }
+ }
} else {
$checkbystatus = 1;
}
@@ -8031,7 +8080,7 @@ sub assignrole {
$context);
} elsif (($role eq 'ca') || ($role eq 'aa')) {
&coauthorrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
- $context);
+ $context);
}
if ($role eq 'cc') {
&autoupdate_coowners($url,$end,$start,$uname,$udom);
@@ -10496,7 +10545,7 @@ sub symbverify {
$ids=$bighash{'ids_'.&clutter($thisurl)};
}
unless ($ids) {
- my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl;
+ my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl;
$ids=$bighash{$idkey};
}
if ($ids) {
@@ -10512,14 +10561,14 @@ sub symbverify {
if (ref($encstate)) {
$$encstate = $bighash{'encrypted_'.$id};
}
- if (($env{'request.role.adv'}) ||
- ($bighash{'encrypted_'.$id} eq $env{'request.enc'}) ||
+ if (($env{'request.role.adv'}) ||
+ ($bighash{'encrypted_'.$id} eq $env{'request.enc'}) ||
($thisurl eq '/adm/navmaps')) {
- $okay=1;
+ $okay=1;
last;
- }
- }
- }
+ }
+ }
+ }
}
untie(%bighash);
}
@@ -10598,12 +10647,12 @@ sub symbread {
if ($env{$cache_str} ne '') {
return $env{$cache_str};
}
- } else {
+ } else {
# no filename provided? try from environment
if ($env{'request.symb'}) {
- return $env{$cache_str}=&symbclean($env{'request.symb'});
- }
- $thisfn=$env{'request.filename'};
+ return $env{$cache_str}=&symbclean($env{'request.symb'});
+ }
+ $thisfn=$env{'request.filename'};
}
if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
# is that filename actually a symb? Verify, clean, and return
@@ -10831,6 +10880,7 @@ sub rndseed {
$which =&get_rand_alg($courseid);
}
if (defined(&getCODE())) {
+
if ($which eq '64bit5') {
return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
} elsif ($which eq '64bit4') {
@@ -11513,12 +11563,12 @@ sub goodbye {
}
sub get_dns {
- my ($url,$func,$ignore_cache) = @_;
+ my ($url,$func,$ignore_cache,$nocache,$hashref) = @_;
if (!$ignore_cache) {
my ($content,$cached)=
&Apache::lonnet::is_cached_new('dns',$url);
if ($cached) {
- &$func($content);
+ &$func($content,$hashref);
return;
}
}
@@ -11543,8 +11593,10 @@ sub get_dns {
delete($alldns{$dns});
next if ($response->is_error());
my @content = split("\n",$response->content);
- &Apache::lonnet::do_cache_new('dns',$url,\@content,30*24*60*60);
- &$func(\@content);
+ unless ($nocache) {
+ &Apache::lonnet::do_cache_new('dns',$url,\@content,30*24*60*60);
+ }
+ &$func(\@content,$hashref);
return;
}
close($config);
@@ -11552,9 +11604,62 @@ sub get_dns {
&logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
open($config,"<$perlvar{'lonTabDir'}/dns_$which.tab");
my @content = <$config>;
- &$func(\@content);
+ &$func(\@content,$hashref);
return;
}
+
+# ------------------------------------------------------Get DNS checksums file
+sub parse_dns_checksums_tab {
+ my ($lines,$hashref) = @_;
+ my $machine_dom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
+ my $loncaparev = &get_server_loncaparev($machine_dom);
+ my ($release,$timestamp) = split(/\-/,$loncaparev);
+ my (%chksum,%revnum);
+ if (ref($lines) eq 'ARRAY') {
+ chomp(@{$lines});
+ my $versions = shift(@{$lines});
+ my %supported;
+ if ($versions =~ /^VERSIONS\:([\w\.\,]+)$/) {
+ my $releaseslist = $1;
+ if ($releaseslist =~ /,/) {
+ map { $supported{$_} = 1; } split(/,/,$releaseslist);
+ } elsif ($releaseslist) {
+ $supported{$releaseslist} = 1;
+ }
+ }
+ if ($supported{$release}) {
+ my $matchthis = 0;
+ foreach my $line (@{$lines}) {
+ if ($line =~ /^(\d[\w\.]+)$/) {
+ if ($matchthis) {
+ last;
+ } elsif ($1 eq $release) {
+ $matchthis = 1;
+ }
+ } elsif ($matchthis) {
+ my ($file,$version,$shasum) = split(/,/,$line);
+ $chksum{$file} = $shasum;
+ $revnum{$file} = $version;
+ }
+ }
+ if (ref($hashref) eq 'HASH') {
+ %{$hashref} = (
+ sums => \%chksum,
+ versions => \%revnum,
+ );
+ }
+ }
+ }
+ return;
+}
+
+sub fetch_dns_checksums {
+ my %checksums;
+ &get_dns('/adm/dns/checksums',\&parse_dns_checksums_tab,1,1,
+ \%checksums);
+ return \%checksums;
+}
+
# ------------------------------------------------------------ Read domain file
{
my $loaded;
@@ -12427,9 +12532,9 @@ provided for types, will default to retu
=item *
in_course($udom,$uname,$cdom,$cnum,$type,$hideprivileged) : determine if
-user: $uname:$udom has a role in the course: $cdom_$cnum.
+user: $uname:$udom has a role in the course: $cdom_$cnum.
-Additional optional arguments are: $type (if role checking is to be restricted
+Additional optional arguments are: $type (if role checking is to be restricted
to certain user status types -- previous (expired roles), active (currently
available roles) or future (roles available in the future), and
$hideprivileged -- if true will not report course roles for users who
@@ -12737,14 +12842,14 @@ returns the data handle
=item *
-symbverify($symb,$thisfn,$ecstate) : verifies that $symb actually exists
+symbverify($symb,$thisfn,$encstate) : verifies that $symb actually exists
and is a possible symb for the URL in $thisfn, and if is an encrypted
resource that the user accessed using /enc/ returns a 1 on success, 0
on failure, user must be in a course, as it assumes the existence of
the course initial hash, and uses $env('request.course.id'}. The third
-arg is an optional reference to a scalar. If this arg is passed in the
+arg is an optional reference to a scalar. If this arg is passed in the
call to symbverify, it will be set to 1 if the symb has been set to be
-encrypted; otherwise it will be null.
+encrypted; otherwise it will be null.
=item *
@@ -12797,13 +12902,13 @@ expirespread($uname,$udom,$stype,$usymb)
devalidate($symb) : devalidate temporary spreadsheet calculations,
forcing spreadsheet to reevaluate the resource scores next time.
-=item *
+=item *
can_edit_resource($file,$cnum,$cdom,$resurl,$symb,$group) : determine if current user can edit a particular resource,
when viewing in course context.
input: six args -- filename (decluttered), course number, course domain,
- url, symb (if registered) and group (if this is a
+ url, symb (if registered) and group (if this is a
group item -- e.g., bulletin board, group page etc.).
output: array of five scalars --
@@ -12811,15 +12916,15 @@ when viewing in course context.
$home -- homeserver of resource (i.e., for author if published,
or course if uploaded.).
$switchserver -- 1 if server switch will be needed.
- $forceedit -- 1 if icon/link should be to go to edit mode
+ $forceedit -- 1 if icon/link should be to go to edit mode
$forceview -- 1 if icon/link should be to go to view mode
=item *
is_course_upload($file,$cnum,$cdom)
-Used in course context to determine if current file was uploaded to
-the course (i.e., would be found in /userfiles/docs on the course's
+Used in course context to determine if current file was uploaded to
+the course (i.e., would be found in /userfiles/docs on the course's
homeserver.
input: 3 args -- filename (decluttered), course number and course domain.
@@ -13405,8 +13510,8 @@ Returns:
get_timebased_id():
-Attempts to get a unique timestamp-based suffix for use with items added to a
-course via the Course Editor (e.g., folders, composite pages,
+Attempts to get a unique timestamp-based suffix for use with items added to a
+course via the Course Editor (e.g., folders, composite pages,
group bulletin boards).
Args: (first three required; six others optional)
@@ -13417,24 +13522,24 @@ Args: (first three required; six others
2. keyid (alphanumeric): name of temporary locking key in hash,
e.g., num, boardids
-3. namespace: name of gdbm file used to store suffixes already assigned;
+3. namespace: name of gdbm file used to store suffixes already assigned;
file will be named nohist_namespace.db
4. cdom: domain of course; default is current course domain from %env
5. cnum: course number; default is current course number from %env
-6. idtype: set to concat if an additional digit is to be appended to the
+6. idtype: set to concat if an additional digit is to be appended to the
unix timestamp to form the suffix, if the plain timestamp is already
- in use. Default is to not do this, but simply increment the unix
+ in use. Default is to not do this, but simply increment the unix
timestamp by 1 until a unique key is obtained.
7. who: holder of locking key; defaults to user:domain for user.
-8. locktries: number of attempts to obtain a lock (sleep of 1s before
+8. locktries: number of attempts to obtain a lock (sleep of 1s before
retrying); default is 3.
-9. maxtries: number of attempts to obtain a unique suffix; default is 20.
+9. maxtries: number of attempts to obtain a unique suffix; default is 20.
Returns: