version 1.29, 2000/09/05 13:32:31
|
version 1.45, 2000/10/12 02:11:16
|
Line 28
|
Line 28
|
# restore : returns hash for this url |
# restore : returns hash for this url |
# eget(namesp,array) : returns hash with keys from array filled in from namesp |
# eget(namesp,array) : returns hash with keys from array filled in from namesp |
# get(namesp,array) : returns hash with keys from array filled in from namesp |
# get(namesp,array) : returns hash with keys from array filled in from namesp |
# del(namesp,array) : deletes keys out of arry from namesp |
# del(namesp,array) : deletes keys out of array from namesp |
# put(namesp,hash) : stores hash in namesp |
# put(namesp,hash) : stores hash in namesp |
# dump(namesp) : dumps the complete namespace into a hash |
# dump(namesp) : dumps the complete namespace into a hash |
# ssi(url,hash) : does a complete request cycle on url to localhost, posts |
# ssi(url,hash) : does a complete request cycle on url to localhost, posts |
# hash |
# hash |
|
# coursedescription(id) : returns and caches course description for id |
# repcopy(filename) : replicate file |
# repcopy(filename) : replicate file |
# dirlist(url) : gets a directory listing |
# dirlist(url) : gets a directory listing |
|
# directcondval(index) : reading condition value of single condition from |
|
# state string |
# condval(index) : value of condition index based on state |
# condval(index) : value of condition index based on state |
# varval(name) : value of a variable |
# varval(name) : value of a variable |
# refreshstate() : refresh the state information string |
# refreshstate() : refresh the state information string |
|
# symblist(map,hash) : Updates symbolic storage links |
|
# symbread([filename]) : returns the data handle (filename optional) |
|
# rndseed() : returns a random seed |
|
# getfile(filename) : returns the contents of filename, or a -1 if it can't |
|
# be found, replicates and subscribes to the file |
|
# filelocation(dir,file) : returns a farily clean absolute reference to file |
|
# from the directory dir |
# |
# |
# 6/1/99,6/2,6/10,6/11,6/12,6/14,6/26,6/28,6/29,6/30, |
# 6/1/99,6/2,6/10,6/11,6/12,6/14,6/26,6/28,6/29,6/30, |
# 7/1,7/2,7/9,7/10,7/12,7/14,7/15,7/19, |
# 7/1,7/2,7/9,7/10,7/12,7/14,7/15,7/19, |
Line 49
|
Line 59
|
# 06/26 Ben Tyszka |
# 06/26 Ben Tyszka |
# 06/30,07/15,07/17,07/18,07/20,07/21,07/22,07/25 Gerd Kortemeyer |
# 06/30,07/15,07/17,07/18,07/20,07/21,07/22,07/25 Gerd Kortemeyer |
# 08/14 Ben Tyszka |
# 08/14 Ben Tyszka |
# 08/22,08/28,08/31,09/01,09/02,09/04,09/05 Gerd Kortemeyer |
# 08/22,08/28,08/31,09/01,09/02,09/04,09/05,09/25,09/28,09/30 Gerd Kortemeyer |
|
# 10/04 Gerd Kortemeyer |
|
# 10/04 Guy Albertelli |
|
# 10/06,10/09,10/10,10/11 Gerd Kortemeyer |
|
|
package Apache::lonnet; |
package Apache::lonnet; |
|
|
Line 60 use HTTP::Headers;
|
Line 73 use HTTP::Headers;
|
use vars |
use vars |
qw(%perlvar %hostname %homecache %spareid %hostdom %libserv %pr %prp %fe %fd $readit); |
qw(%perlvar %hostname %homecache %spareid %hostdom %libserv %pr %prp %fe %fd $readit); |
use IO::Socket; |
use IO::Socket; |
|
use GDBM_File; |
use Apache::Constants qw(:common :http); |
use Apache::Constants qw(:common :http); |
|
|
# --------------------------------------------------------------------- Logging |
# --------------------------------------------------------------------- Logging |
Line 193 sub critical {
|
Line 207 sub critical {
|
|
|
sub appenv { |
sub appenv { |
my %newenv=@_; |
my %newenv=@_; |
|
map { |
|
if (($newenv{$_}=~/^user\.role/) || ($newenv{$_}=~/^user\.priv/)) { |
|
&logthis("<font color=blue>WARNING: ". |
|
"Attempt to modify environment ".$_." to ".$newenv{$_}); |
|
delete($newenv{$_}); |
|
} else { |
|
$ENV{$_}=$newenv{$_}; |
|
} |
|
} keys %newenv; |
my @oldenv; |
my @oldenv; |
{ |
{ |
my $fh; |
my $fh; |
Line 406 sub log {
|
Line 429 sub log {
|
# ----------------------------------------------------------------------- Store |
# ----------------------------------------------------------------------- Store |
|
|
sub store { |
sub store { |
my %storehash=shift; |
my %storehash=@_; |
|
my $symb; |
|
unless ($symb=escape(&symbread())) { return ''; } |
|
my $namespace; |
|
unless ($namespace=$ENV{'request.course.id'}) { return ''; } |
my $namevalue=''; |
my $namevalue=''; |
map { |
map { |
$namevalue.=escape($_).'='.escape($storehash{$_}).'&'; |
$namevalue.=escape($_).'='.escape($storehash{$_}).'&'; |
} keys %storehash; |
} keys %storehash; |
$namevalue=~s/\&$//; |
$namevalue=~s/\&$//; |
return reply("store:$ENV{'user.domain'}:$ENV{'user.name'}:" |
return reply( |
."$ENV{'user.class'}:$ENV{'request.filename'}:$namevalue", |
"store:$ENV{'user.domain'}:$ENV{'user.name'}:$namespace:$symb:$namevalue", |
"$ENV{'user.home'}"); |
"$ENV{'user.home'}"); |
} |
} |
|
|
# --------------------------------------------------------------------- Restore |
# --------------------------------------------------------------------- Restore |
|
|
sub restore { |
sub restore { |
my $answer=reply("restore:$ENV{'user.domain'}:$ENV{'user.name'}:" |
my $symb; |
."$ENV{'user.class'}:$ENV{'request.filename'}", |
unless ($symb=escape(&symbread())) { return ''; } |
"$ENV{'user.home'}"); |
my $namespace; |
|
unless ($namespace=$ENV{'request.course.id'}) { return ''; } |
|
my $answer=reply( |
|
"restore:$ENV{'user.domain'}:$ENV{'user.name'}:$namespace:$symb", |
|
"$ENV{'user.home'}"); |
my %returnhash=(); |
my %returnhash=(); |
map { |
map { |
my ($name,$value)=split(/\=/,$_); |
my ($name,$value)=split(/\=/,$_); |
$returnhash{&unescape($name)}=&unescape($value); |
$returnhash{&unescape($name)}=&unescape($value); |
} split(/\&/,$answer); |
} split(/\&/,$answer); |
|
map { |
|
$returnhash{$_}=$returnhash{$returnhash{'version'}.':'.$_}; |
|
} split(/\:/,$returnhash{$returnhash{'version'}.':keys'}); |
return %returnhash; |
return %returnhash; |
} |
} |
|
|
|
# ---------------------------------------------------------- Course Description |
|
|
|
sub coursedescription { |
|
my $courseid=shift; |
|
$courseid=~s/^\///; |
|
my ($cdomain,$cnum)=split(/\//,$courseid); |
|
my $chome=homeserver($cnum,$cdomain); |
|
if ($chome ne 'no_host') { |
|
my $rep=reply("dump:$cdomain:$cnum:environment",$chome); |
|
if ($rep ne 'con_lost') { |
|
my %cachehash=(); |
|
my %returnhash=('home' => $chome, |
|
'domain' => $cdomain, |
|
'num' => $cnum); |
|
map { |
|
my ($name,$value)=split(/\=/,$_); |
|
$name=&unescape($name); |
|
$value=&unescape($value); |
|
$returnhash{$name}=$value; |
|
if ($name eq 'description') { |
|
$cachehash{$courseid}=$value; |
|
} |
|
} split(/\&/,$rep); |
|
$returnhash{'url'}='/res/'.declutter($returnhash{'url'}); |
|
$returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'. |
|
$ENV{'user.name'}.'_'.$cdomain.'_'.$cnum; |
|
put ('coursedescriptions',%cachehash); |
|
return %returnhash; |
|
} |
|
} |
|
return (); |
|
} |
|
|
# -------------------------------------------------------- Get user priviledges |
# -------------------------------------------------------- Get user priviledges |
|
|
sub rolesinit { |
sub rolesinit { |
Line 529 sub get {
|
Line 596 sub get {
|
$ENV{'user.home'}); |
$ENV{'user.home'}); |
my @pairs=split(/\&/,$rep); |
my @pairs=split(/\&/,$rep); |
my %returnhash=(); |
my %returnhash=(); |
|
my $i=0; |
map { |
map { |
my ($key,$value)=split(/=/,$_); |
$returnhash{$_}=unescape($pairs[$i]); |
$returnhash{unescape($key)}=unescape($value); |
$i++; |
} @pairs; |
} @storearr; |
return %returnhash; |
return %returnhash; |
} |
} |
|
|
Line 590 sub eget {
|
Line 658 sub eget {
|
$ENV{'user.home'}); |
$ENV{'user.home'}); |
my @pairs=split(/\&/,$rep); |
my @pairs=split(/\&/,$rep); |
my %returnhash=(); |
my %returnhash=(); |
|
my $i=0; |
map { |
map { |
my ($key,$value)=split(/=/,$_); |
$returnhash{$_}=unescape($pairs[$i]); |
$returnhash{unescape($key)}=unescape($value); |
$i++; |
} @pairs; |
} @storearr; |
return %returnhash; |
return %returnhash; |
} |
} |
|
|
Line 626 sub allowed {
|
Line 695 sub allowed {
|
return 'F'; |
return 'F'; |
} |
} |
|
|
|
# The user does not have full access at system or domain level |
# Course level access control |
# Course level access control |
|
|
# uri itself refering to a course? |
# uri itself refering to a course? |
Line 634 sub allowed {
|
Line 704 sub allowed {
|
if ($ENV{'user.priv./'.$uri}=~/$priv\&([^\:]*)/) { |
if ($ENV{'user.priv./'.$uri}=~/$priv\&([^\:]*)/) { |
$thisallowed.=$1; |
$thisallowed.=$1; |
} |
} |
|
# Full access on course level? Exit. |
if ($thisallowed=~/F/) { |
if ($thisallowed=~/F/) { |
return 'F'; |
return 'F'; |
} |
} |
Line 642 sub allowed {
|
Line 713 sub allowed {
|
|
|
} else { |
} else { |
|
|
unless(defined($ENV{'request.course.uri'})) { |
unless(defined($ENV{'request.course.id'})) { |
return '1'; |
return '1'; |
} |
} |
|
|
# Get access priviledges for course |
# Get access priviledges for course |
|
|
if ($ENV{'user.priv./'.$ENV{'request.course.uri'}}=~/$priv\&([^\:]*)/) { |
if ($ENV{'user.priv./'.$ENV{'request.course.id'}}=~/$priv\&([^\:]*)/) { |
$thisallowed.=$1; |
$thisallowed.=$1; |
} |
} |
|
|
Line 661 sub allowed {
|
Line 732 sub allowed {
|
$#uriparts--; |
$#uriparts--; |
my $uripath=join('/',@uriparts); |
my $uripath=join('/',@uriparts); |
my $uricond=-1; |
my $uricond=-1; |
if ($ENV{'acc.res.'.$ENV{'request.course'}.'.'.$uripath}=~ |
if ($ENV{'acc.res.'.$ENV{'request.course.id'}.'.'.$uripath}=~ |
/\&$urifile\:(\d+)\&/) { |
/\&$urifile\:(\d+)\&/) { |
$uricond=$1; |
$uricond=$1; |
} elsif (($fe{$uritype} eq 'emb') || ($fe{$uritype} eq 'img')) { |
} elsif (($fe{$uritype} eq 'emb') || ($fe{$uritype} eq 'img')) { |
|
my $refuri=$ENV{'HTTP_REFERER'}; |
|
$refuri=~s/^\/res//; |
|
$refuri=~s/^\///; |
|
@uriparts=split(/\//,$refuri); |
|
$urifile=$uriparts[$#uriparts]; |
|
$#uriparts--; |
|
$uripath=join('/',@uriparts); |
|
if ($ENV{'acc.res.'.$ENV{'request.course.id'}.'.'.$uripath}=~ |
|
/\&$urifile\:(\d+)\&/) { |
|
$uricond=$1; |
|
} |
} |
} |
|
|
|
if ($uricond>=0) { |
|
|
|
# The resource is part of the course |
|
# If user had full access on course level, go ahead |
|
|
|
if ($thisallowed=~/F/) { |
|
return 'F'; |
|
} |
|
|
|
# Restricted by state? |
|
|
|
if ($thisallowed=~/X/) { |
|
if (&condval($uricond)) { |
|
return '2'; |
|
} else { |
|
return ''; |
|
} |
|
} |
|
} |
} |
} |
return $thisallowed; |
return $thisallowed; |
} |
} |
Line 745 sub filedecription {
|
Line 845 sub filedecription {
|
sub assignrole { |
sub assignrole { |
my ($udom,$uname,$url,$role,$end,$start)=@_; |
my ($udom,$uname,$url,$role,$end,$start)=@_; |
my $mrole; |
my $mrole; |
$url=~s/^\///; |
$url=declutter($url); |
$url=~s/^res\///; |
|
if ($role =~ /^cr\//) { |
if ($role =~ /^cr\//) { |
unless ($url=~/\.course$/) { return 'invalid'; } |
unless ($url=~/\.course$/) { return 'invalid'; } |
unless (allowed('ccr',$url)) { return 'refused'; } |
unless (allowed('ccr',$url)) { return 'refused'; } |
Line 845 sub dirlist {
|
Line 944 sub dirlist {
|
|
|
# -------------------------------------------------------- Value of a Condition |
# -------------------------------------------------------- Value of a Condition |
|
|
|
sub directcondval { |
|
my $number=shift; |
|
if ($ENV{'user.state.'.$ENV{'request.course.id'}}) { |
|
return substr($ENV{'user.state.'.$ENV{'request.course.id'}},$number,1); |
|
} else { |
|
return 2; |
|
} |
|
} |
|
|
sub condval { |
sub condval { |
my $condidx=shift; |
my $condidx=shift; |
my $result=0; |
my $result=0; |
if ($ENV{'request.course'}) { |
if ($ENV{'request.course.id'}) { |
if (defined($ENV{'acc.cond.'.$ENV{'request.course'}.'.'.$condidx})) { |
if (defined($ENV{'acc.cond.'.$ENV{'request.course.id'}.'.'.$condidx})) { |
my $operand='|'; |
my $operand='|'; |
my @stack; |
my @stack; |
map { |
map { |
Line 865 sub condval {
|
Line 973 sub condval {
|
} elsif (($_ eq '&') || ($_ eq '|')) { |
} elsif (($_ eq '&') || ($_ eq '|')) { |
$operand=$_; |
$operand=$_; |
} else { |
} else { |
my $new= |
my $new=directcondval($_); |
substr($ENV{'user.state.'.$ENV{'request.course'}},$_,1); |
|
if ($operand eq '&') { |
if ($operand eq '&') { |
$result=$result>$new?$new:$result; |
$result=$result>$new?$new:$result; |
} else { |
} else { |
$result=$result>$new?$result:$new; |
$result=$result>$new?$result:$new; |
} |
} |
} |
} |
} ($ENV{'acc.cond.'.$ENV{'request.course'}.'.'.$condidx}=~ |
} ($ENV{'acc.cond.'.$ENV{'request.course.id'}.'.'.$condidx}=~ |
/(\d+|\(|\)|\&|\|)/g); |
/(\d+|\(|\)|\&|\|)/g); |
} |
} |
} |
} |
Line 899 sub varval {
|
Line 1006 sub varval {
|
return $value; |
return $value; |
} |
} |
|
|
|
# ------------------------------------------------- Update symbolic store links |
|
|
|
sub symblist { |
|
my ($mapname,%newhash)=@_; |
|
$mapname=declutter($mapname); |
|
my %hash; |
|
if (($ENV{'request.course.fn'}) && (%newhash)) { |
|
if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'_symb.db', |
|
&GDBM_WRCREAT,0640)) { |
|
map { |
|
$hash{declutter($_)}=$mapname.'___'.$newhash{$_}; |
|
} keys %newhash; |
|
if (untie(%hash)) { |
|
return 'ok'; |
|
} |
|
} |
|
} |
|
return 'error'; |
|
} |
|
|
|
# ------------------------------------------------------ Return symb list entry |
|
|
|
sub symbread { |
|
my $thisfn=shift; |
|
unless ($thisfn) { |
|
$thisfn=$ENV{'request.filename'}; |
|
} |
|
$thisfn=declutter($thisfn); |
|
my %hash; |
|
my %bighash; |
|
my $syval=''; |
|
if (($ENV{'request.course.fn'}) && ($thisfn)) { |
|
if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'_symb.db', |
|
&GDBM_READER,0640)) { |
|
$syval=$hash{$thisfn}; |
|
untie(%hash); |
|
} |
|
# ---------------------------------------------------------- There was an entry |
|
if ($syval) { |
|
unless ($syval=~/\_\d+$/) { |
|
unless ($ENV{'form.request.prefix'}=~/\.(\d+)\_$/) { |
|
&appenv('request.ambiguous' => $thisfn); |
|
return ''; |
|
} |
|
$syval.=$1; |
|
} |
|
} else { |
|
# ------------------------------------------------------- Was not in symb table |
|
if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db', |
|
&GDBM_READER,0640)) { |
|
# ---------------------------------------------- Get ID(s) for current resource |
|
my $ids=$bighash{'ids_/res/'.$thisfn}; |
|
if ($ids) { |
|
# ------------------------------------------------------------------- Has ID(s) |
|
my @possibilities=split(/\,/,$ids); |
|
if ($#possibilities==0) { |
|
# ----------------------------------------------- There is only one possibility |
|
my ($mapid,$resid)=split(/\./,$ids); |
|
$syval=declutter($bighash{'map_id_'.$mapid}).'___'.$resid; |
|
} else { |
|
# ------------------------------------------ There is more than one possibility |
|
my $realpossible=0; |
|
map { |
|
my $file=$bighash{'src_'.$_}; |
|
if (&allowed('bre',$file)) { |
|
my ($mapid,$resid)=split(/\./,$_); |
|
if ($bighash{'map_type_'.$mapid} ne 'page') { |
|
$realpossible++; |
|
$syval=declutter($bighash{'map_id_'.$mapid}). |
|
'___'.$resid; |
|
} |
|
} |
|
} @possibilities; |
|
if ($realpossible!=1) { $syval=''; } |
|
} |
|
} |
|
untie(%bighash) |
|
} |
|
} |
|
if ($syval) { return $syval.'___'.$thisfn; } |
|
} |
|
&appenv('request.ambiguous' => $thisfn); |
|
return ''; |
|
} |
|
|
|
# ---------------------------------------------------------- Return random seed |
|
|
|
sub numval { |
|
my $txt=shift; |
|
$txt=~tr/A-J/0-9/; |
|
$txt=~tr/a-j/0-9/; |
|
$txt=~tr/K-T/0-9/; |
|
$txt=~tr/k-t/0-9/; |
|
$txt=~tr/U-Z/0-5/; |
|
$txt=~tr/u-z/0-5/; |
|
$txt=~s/\D//g; |
|
return int($txt); |
|
} |
|
|
|
sub rndseed { |
|
my $symb; |
|
unless ($symb=&symbread()) { return time; } |
|
my $symbchck=unpack("%32C*",$symb); |
|
my $symbseed=numval($symb)%$symbchck; |
|
my $namechck=unpack("%32C*",$ENV{'user.name'}); |
|
my $nameseed=numval($ENV{'user.name'})%$namechck; |
|
return int( $symbseed |
|
.$nameseed |
|
.unpack("%32C*",$ENV{'user.domain'}) |
|
.unpack("%32C*",$ENV{'request.course.id'}) |
|
.$namechck |
|
.$symbchck); |
|
} |
|
|
|
# ------------------------------------------------------------ Serves up a file |
|
# returns either the contents of the file or a -1 |
|
sub getfile { |
|
my $file=shift; |
|
&repcopy($file); |
|
if (! -e $file ) { return -1; }; |
|
my $fh=Apache::File->new($file); |
|
my $a=''; |
|
while (<$fh>) { $a .=$_; } |
|
return $a |
|
} |
|
|
|
sub filelocation { |
|
my ($dir,$file) = @_; |
|
my $location; |
|
$file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces |
|
$file=~s/^$perlvar{'lonDocRoot'}//; |
|
$file=~s:^/*res::; |
|
if ( !( $file =~ m:^/:) ) { |
|
$location = $dir. '/'.$file; |
|
} else { |
|
$location = '/home/httpd/html/res'.$file; |
|
} |
|
$location=~s://+:/:g; # remove duplicate / |
|
while ($location=~m:/../:) {$location=~ s:/[^/]+/\.\./:/:g;} #remove dir/.. |
|
|
|
return $location; |
|
} |
|
|
|
# ------------------------------------------------------------- Declutters URLs |
|
|
|
sub declutter { |
|
my $thisfn=shift; |
|
$thisfn=~s/^$perlvar{'lonDocRoot'}//; |
|
$thisfn=~s/^\///; |
|
$thisfn=~s/^res\///; |
|
return $thisfn; |
|
} |
|
|
# -------------------------------------------------------- Escape Special Chars |
# -------------------------------------------------------- Escape Special Chars |
|
|
sub escape { |
sub escape { |