version 1.33, 2000/09/29 14:36:30
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version 1.44, 2000/10/11 21:12:32
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# 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 |
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# 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 |
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# directcondval(index) : reading condition value of single condition from |
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# 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 |
# symblist(map,hash) : Updates symbolic storage links |
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# symbread([filename]) : returns the data handle (filename optional) |
# rndseed() : returns a random seed |
# rndseed() : returns a random seed |
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# getfile(filename) : returns the contents of filename, or a -1 if it can't |
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# be found, replicates and subscribes to the file |
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# filelocation(dir,file) : returns a farily clean absolute reference to file |
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# 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, |
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# 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 |
# 08/22,08/28,08/31,09/01,09/02,09/04,09/05,09/25,09/28 Gerd Kortemeyer |
# 08/22,08/28,08/31,09/01,09/02,09/04,09/05,09/25,09/28,09/30 Gerd Kortemeyer |
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# 10/04 Gerd Kortemeyer |
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# 10/04 Guy Albertelli |
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# 10/06,10/09,10/10,10/11 Gerd Kortemeyer |
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package Apache::lonnet; |
package Apache::lonnet; |
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Line 196 sub critical {
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Line 207 sub critical {
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sub appenv { |
sub appenv { |
my %newenv=@_; |
my %newenv=@_; |
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map { |
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if (($newenv{$_}=~/^user\.role/) || ($newenv{$_}=~/^user\.priv/)) { |
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&logthis("<font color=blue>WARNING: ". |
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"Attempt to modify environment ".$_." to ".$newenv{$_}); |
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delete($newenv{$_}); |
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} else { |
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$ENV{$_}=$newenv{$_}; |
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} |
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} keys %newenv; |
my @oldenv; |
my @oldenv; |
{ |
{ |
my $fh; |
my $fh; |
Line 445 sub restore {
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Line 465 sub restore {
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return %returnhash; |
return %returnhash; |
} |
} |
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# ---------------------------------------------------------- Course Description |
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sub coursedescription { |
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my $courseid=shift; |
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$courseid=~s/^\///; |
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my ($cdomain,$cnum)=split(/\//,$courseid); |
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my $chome=homeserver($cnum,$cdomain); |
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if ($chome ne 'no_host') { |
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my $rep=reply("dump:$cdomain:$cnum:environment",$chome); |
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if ($rep ne 'con_lost') { |
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my %cachehash=(); |
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my %returnhash=('home' => $chome, |
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'domain' => $cdomain, |
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'num' => $cnum); |
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map { |
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my ($name,$value)=split(/\=/,$_); |
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$name=&unescape($name); |
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$value=&unescape($value); |
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$returnhash{$name}=$value; |
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if ($name eq 'description') { |
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$cachehash{$courseid}=$value; |
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} |
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} split(/\&/,$rep); |
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$returnhash{'url'}='/res/'.declutter($returnhash{'url'}); |
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$returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'. |
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$ENV{'user.name'}.'_'.$cdomain.'_'.$cnum; |
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put ('coursedescriptions',%cachehash); |
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return %returnhash; |
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} |
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} |
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return (); |
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} |
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# -------------------------------------------------------- Get user priviledges |
# -------------------------------------------------------- Get user priviledges |
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sub rolesinit { |
sub rolesinit { |
Line 543 sub get {
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Line 596 sub get {
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$ENV{'user.home'}); |
$ENV{'user.home'}); |
my @pairs=split(/\&/,$rep); |
my @pairs=split(/\&/,$rep); |
my %returnhash=(); |
my %returnhash=(); |
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my $i=0; |
map { |
map { |
my ($key,$value)=split(/=/,$_); |
$returnhash{$_}=unescape($pairs[$i]); |
$returnhash{unescape($key)}=unescape($value); |
$i++; |
} @pairs; |
} @storearr; |
return %returnhash; |
return %returnhash; |
} |
} |
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Line 604 sub eget {
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Line 658 sub eget {
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$ENV{'user.home'}); |
$ENV{'user.home'}); |
my @pairs=split(/\&/,$rep); |
my @pairs=split(/\&/,$rep); |
my %returnhash=(); |
my %returnhash=(); |
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my $i=0; |
map { |
map { |
my ($key,$value)=split(/=/,$_); |
$returnhash{$_}=unescape($pairs[$i]); |
$returnhash{unescape($key)}=unescape($value); |
$i++; |
} @pairs; |
} @storearr; |
return %returnhash; |
return %returnhash; |
} |
} |
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Line 706 sub allowed {
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Line 761 sub allowed {
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# Restricted by state? |
# Restricted by state? |
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if ($thisallowed=~/X/) { |
if ($thisallowed=~/X/) { |
if (&condval($uricond)>1) { |
if (&condval($uricond)) { |
return '2'; |
return '2'; |
} else { |
} else { |
return ''; |
return ''; |
Line 889 sub dirlist {
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Line 944 sub dirlist {
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# -------------------------------------------------------- Value of a Condition |
# -------------------------------------------------------- Value of a Condition |
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sub directcondval { |
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my $number=shift; |
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if ($ENV{'user.state.'.$ENV{'request.course.id'}}) { |
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return substr($ENV{'user.state.'.$ENV{'request.course.id'}},$number,1); |
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} else { |
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return 2; |
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} |
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} |
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sub condval { |
sub condval { |
my $condidx=shift; |
my $condidx=shift; |
my $result=0; |
my $result=0; |
Line 909 sub condval {
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Line 973 sub condval {
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} elsif (($_ eq '&') || ($_ eq '|')) { |
} elsif (($_ eq '&') || ($_ eq '|')) { |
$operand=$_; |
$operand=$_; |
} else { |
} else { |
my $new= |
my $new=directcondval($_); |
substr($ENV{'user.state.'.$ENV{'request.course.id'}},$_,1); |
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if ($operand eq '&') { |
if ($operand eq '&') { |
$result=$result>$new?$new:$result; |
$result=$result>$new?$new:$result; |
} else { |
} else { |
Line 966 sub symblist {
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Line 1029 sub symblist {
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# ------------------------------------------------------ Return symb list entry |
# ------------------------------------------------------ Return symb list entry |
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sub symbread { |
sub symbread { |
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my $thisfn=shift; |
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unless ($thisfn) { |
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$thisfn=$ENV{'request.filename'}; |
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} |
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$thisfn=declutter($thisfn); |
my %hash; |
my %hash; |
my $syval; |
my %bighash; |
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my $syval=''; |
if (($ENV{'request.course.fn'}) && ($ENV{'request.filename'})) { |
if (($ENV{'request.course.fn'}) && ($ENV{'request.filename'})) { |
if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'_symb.db', |
if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'_symb.db', |
&GDBM_READER,0640)) { |
&GDBM_READER,0640)) { |
my $thisfn=declutter($ENV{'request.filename'}); |
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$syval=$hash{$thisfn}; |
$syval=$hash{$thisfn}; |
if (untie(%hash)) { |
untie(%hash); |
unless ($syval=~/\_\d+$/) { |
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unless ($ENV{'form.request.prefix'}=~/\.(\d+)\_$/) { |
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return ''; |
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} |
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$syval.=$1; |
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} |
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$syval.='___'.$thisfn; |
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return $syval; |
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} |
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} |
} |
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# ---------------------------------------------------------- There was an entry |
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if ($syval) { |
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unless ($syval=~/\_\d+$/) { |
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unless ($ENV{'form.request.prefix'}=~/\.(\d+)\_$/) { |
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&appenv('request.ambiguous' => $thisfn); |
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return ''; |
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} |
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$syval.=$1; |
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} |
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} else { |
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# ------------------------------------------------------- Was not in symb table |
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if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db', |
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&GDBM_READER,0640)) { |
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# ---------------------------------------------- Get ID(s) for current resource |
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my $ids=$bighash{'ids_/res/'.$thisfn}; |
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if ($ids) { |
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# ------------------------------------------------------------------- Has ID(s) |
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my @possibilities=split(/\,/,$ids); |
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if ($#possibilities==0) { |
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# ----------------------------------------------- There is only one possibility |
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my ($mapid,$resid)=split(/\./,$ids); |
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$syval=declutter($bighash{'map_id_'.$mapid}).'___'.$resid; |
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} else { |
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# ------------------------------------------ There is more than one possibility |
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my $realpossible=0; |
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map { |
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my $file=$bighash{'src_'.$_}; |
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if (&allowed('bre',$file)) { |
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my ($mapid,$resid)=split(/\./,$_); |
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if ($bighash{'map_type_'.$mapid} ne 'page') { |
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$realpossible++; |
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$syval=declutter($bighash{'map_id_'.$mapid}). |
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'___'.$resid; |
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} |
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} |
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} @possibilities; |
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if ($realpossible!=1) { $syval=''; } |
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} |
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} |
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untie(%bighash) |
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} |
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} |
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if ($syval) { return $syval.'___'.$thisfn; } |
} |
} |
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&appenv('request.ambiguous' => $thisfn); |
return ''; |
return ''; |
} |
} |
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Line 1004 sub numval {
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Line 1107 sub numval {
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sub rndseed { |
sub rndseed { |
my $symb; |
my $symb; |
unless ($symb=&symbread()) { return ''; } |
unless ($symb=&symbread()) { return time; } |
my $symbchck=unpack("%32C*",$symb); |
my $symbchck=unpack("%32C*",$symb); |
my $symbseed=numval($symb)%$symbchck; |
my $symbseed=numval($symb)%$symbchck; |
my $namechck=unpack("%32C*",$ENV{'user.name'}); |
my $namechck=unpack("%32C*",$ENV{'user.name'}); |
Line 1017 sub rndseed {
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Line 1120 sub rndseed {
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.$symbchck); |
.$symbchck); |
} |
} |
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# ------------------------------------------------------------ Serves up a file |
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# returns either the contents of the file or a -1 |
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sub getfile { |
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my $file=shift; |
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&repcopy($file); |
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if (! -e $file ) { return -1; }; |
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my $fh=Apache::File->new($file); |
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my $a=''; |
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while (<$fh>) { $a .=$_; } |
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return $a |
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} |
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sub filelocation { |
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my ($dir,$file) = @_; |
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my $location; |
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$file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces |
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$file=~s/^$perlvar{'lonDocRoot'}//; |
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$file=~s:^/*res::; |
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if ( !( $file =~ m:^/:) ) { |
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$location = $dir. '/'.$file; |
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} else { |
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$location = '/home/httpd/html/res'.$file; |
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} |
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$location=~s://+:/:g; # remove duplicate / |
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while ($location=~m:/../:) {$location=~ s:/[^/]+/\.\./:/:g;} #remove dir/.. |
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return $location; |
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} |
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# ------------------------------------------------------------- Declutters URLs |
# ------------------------------------------------------------- Declutters URLs |
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sub declutter { |
sub declutter { |