--- loncom/lonnet/perl/lonnet.pm 2006/09/28 20:03:55 1.785
+++ loncom/lonnet/perl/lonnet.pm 2006/10/12 16:35:02 1.790
@@ -1,7 +1,7 @@
# The LearningOnline Network
# TCP networking package
#
-# $Id: lonnet.pm,v 1.785 2006/09/28 20:03:55 albertel Exp $
+# $Id: lonnet.pm,v 1.790 2006/10/12 16:35:02 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -52,6 +52,7 @@ use Storable qw(lock_store lock_nstore l
use Time::HiRes qw( gettimeofday tv_interval );
use Cache::Memcached;
use Digest::MD5;
+use Math::Random;
use lib '/home/httpd/lib/perl';
use LONCAPA;
use LONCAPA::Configuration;
@@ -303,6 +304,9 @@ sub convert_and_load_session_env {
}
my %temp_env;
foreach my $line (@profile) {
+ if ($line !~ m/=/) {
+ return 0;
+ }
chomp($line);
my ($envname,$envvalue)=split(/=/,$line,2);
$temp_env{&unescape($envname)} = &unescape($envvalue);
@@ -314,14 +318,15 @@ sub convert_and_load_session_env {
@env{keys(%temp_env)} = @disk_env{keys(%temp_env)};
untie(%disk_env);
}
+ return 1;
}
# ------------------------------------------- Transfer profile into environment
my $env_loaded;
sub transfer_profile_to_env {
- if ($env_loaded) { return; }
+ my ($lonidsdir,$handle,$force_transfer) = @_;
+ if (!$force_transfer && $env_loaded) { return; }
- my ($lonidsdir,$handle)=@_;
if (!defined($lonidsdir)) {
$lonidsdir = $perlvar{'lonIDsDir'};
}
@@ -329,15 +334,25 @@ sub transfer_profile_to_env {
($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
}
- my %remove;
- if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_READER(),
- 0640)) {
- @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};
- untie(%disk_env);
- } else {
- &convert_and_load_session_env($lonidsdir,$handle);
+ my $convert;
+ {
+ open(my $idf,"$lonidsdir/$handle.id");
+ flock($idf,LOCK_SH);
+ if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
+ &GDBM_READER(),0640)) {
+ @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};
+ untie(%disk_env);
+ } else {
+ $convert = 1;
+ }
+ }
+ if ($convert) {
+ if (!&convert_and_load_session_env($lonidsdir,$handle)) {
+ &logthis("Failed to load session, or convert session.");
+ }
}
+ my %remove;
while ( my $envname = each(%env) ) {
if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {
if ($time < time-300) {
@@ -398,6 +413,31 @@ sub delenv {
return 'ok';
}
+=pod
+
+=item * get_env_multiple($name)
+
+gets $name from the %env hash, it seemlessly handles the cases where multiple
+values may be defined and end up as an array ref.
+
+returns an array of values
+
+=cut
+
+sub get_env_multiple {
+ my ($name) = @_;
+ my @values;
+ if (defined($env{$name})) {
+ # exists is it an array
+ if (ref($env{$name})) {
+ @values=@{ $env{$name} };
+ } else {
+ $values[0]=$env{$name};
+ }
+ }
+ return(@values);
+}
+
# ------------------------------------------ Find out current server userload
# there is a copy in lond
sub userload {
@@ -1170,15 +1210,6 @@ sub absolute_url {
return $protocol.$host_name;
}
-sub absolute_url {
- my ($host_name) = @_;
- my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
- if ($host_name eq '') {
- $host_name = $ENV{'SERVER_NAME'};
- }
- return $protocol.$host_name;
-}
-
sub ssi {
my ($fn,%form)=@_;
@@ -2030,7 +2061,7 @@ sub get_domain_roles {
sub get_first_access {
my ($type,$argsymb)=@_;
- my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
+ my ($symb,$courseid,$udom,$uname)=&whichuser();
if ($argsymb) { $symb=$argsymb; }
my ($map,$id,$res)=&decode_symb($symb);
if ($type eq 'map') {
@@ -2044,7 +2075,7 @@ sub get_first_access {
sub set_first_access {
my ($type)=@_;
- my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
+ my ($symb,$courseid,$udom,$uname)=&whichuser();
my ($map,$id,$res)=&decode_symb($symb);
if ($type eq 'map') {
$res=&symbread($map);
@@ -5272,13 +5303,8 @@ sub GetFileTimestamp {
sub stat_file {
my ($uri) = @_;
- $uri = &clutter($uri);
+ $uri = &clutter_with_no_wrapper($uri);
- # we want just the url part without the unneeded accessor url bits
- if ($uri =~ m-^/adm/-) {
- $uri=~s-^/adm/wrapper/-/-;
- $uri=~s-^/adm/coursedocs/showdoc/-/-;
- }
my ($udom,$uname,$file,$dir);
if ($uri =~ m-^/(uploaded|editupload)/-) {
($udom,$uname,$file) =
@@ -5510,8 +5536,7 @@ sub EXT {
$symbparm=&get_symb_from_alias($symbparm);
}
if (!($uname && $udom)) {
- (my $cursymb,$courseid,$udom,$uname,$publicuser)=
- &Apache::lonxml::whichuser($symbparm);
+ (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
if (!$symbparm) { $symbparm=$cursymb; }
} else {
$courseid=$env{'request.course.id'};
@@ -6165,7 +6190,7 @@ sub gettitle {
sub get_slot {
my ($which,$cnum,$cdom)=@_;
if (!$cnum || !$cdom) {
- (undef,my $courseid)=&Apache::lonxml::whichuser();
+ (undef,my $courseid)=&whichuser();
$cdom=$env{'course.'.$courseid.'.domain'};
$cnum=$env{'course.'.$courseid.'.num'};
}
@@ -6214,9 +6239,6 @@ sub symblist {
sub symbverify {
my ($symb,$thisurl)=@_;
my $thisfn=$thisurl;
-# wrapper not part of symbs
- $thisfn=~s/^\/adm\/wrapper//;
- $thisfn=~s/^\/adm\/coursedocs\/showdoc\///;
$thisfn=&declutter($thisfn);
# direct jump to resource in page or to a sequence - will construct own symbs
if ($thisfn=~/\.(page|sequence)$/) { return 1; }
@@ -6499,7 +6521,7 @@ sub latest_rnd_algorithm_id {
sub get_rand_alg {
my ($courseid)=@_;
- if (!$courseid) { $courseid=(&Apache::lonxml::whichuser())[1]; }
+ if (!$courseid) { $courseid=(&whichuser())[1]; }
if ($courseid) {
return $env{"course.$courseid.rndseed"};
}
@@ -6525,7 +6547,7 @@ sub getCODE {
sub rndseed {
my ($symb,$courseid,$domain,$username)=@_;
- my ($wsymb,$wcourseid,$wdomain,$wusername)=&Apache::lonxml::whichuser();
+ my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
if (!$symb) {
unless ($symb=$wsymb) { return time; }
}
@@ -6566,8 +6588,8 @@ sub rndseed_32bit {
my $domainseed=unpack("%32C*",$domain) << 7;
my $courseseed=unpack("%32C*",$courseid);
my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
- #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
- #&Apache::lonxml::debug("rndseed :$num:$symb");
+ #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
+ #&logthis("rndseed :$num:$symb");
if ($_64bit) { $num=(($num<<32)>>32); }
return $num;
}
@@ -6587,8 +6609,8 @@ sub rndseed_64bit {
my $num1=$symbchck+$symbseed+$namechck;
my $num2=$nameseed+$domainseed+$courseseed;
- #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
- #&Apache::lonxml::debug("rndseed :$num:$symb");
+ #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
+ #&logthis("rndseed :$num:$symb");
if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
return "$num1,$num2";
@@ -6611,8 +6633,8 @@ sub rndseed_64bit2 {
my $num1=$symbchck+$symbseed+$namechck;
my $num2=$nameseed+$domainseed+$courseseed;
- #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
- #&Apache::lonxml::debug("rndseed :$num:$symb");
+ #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
+ #&logthis("rndseed :$num:$symb");
return "$num1,$num2";
}
}
@@ -6633,8 +6655,8 @@ sub rndseed_64bit3 {
my $num1=$symbchck+$symbseed+$namechck;
my $num2=$nameseed+$domainseed+$courseseed;
- #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
- #&Apache::lonxml::debug("rndseed :$num1:$num2:$_64bit");
+ #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
+ #&logthis("rndseed :$num1:$num2:$_64bit");
if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
return "$num1:$num2";
@@ -6657,8 +6679,8 @@ sub rndseed_64bit4 {
my $num1=$symbchck+$symbseed+$namechck;
my $num2=$nameseed+$domainseed+$courseseed;
- #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
- #&Apache::lonxml::debug("rndseed :$num1:$num2:$_64bit");
+ #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
+ #&logthis("rndseed :$num1:$num2:$_64bit");
if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
return "$num1:$num2";
@@ -6682,8 +6704,8 @@ sub rndseed_CODE_64bit {
my $courseseed=unpack("%32S*",$courseid.' ');
my $num1=$symbseed+$CODEchck;
my $num2=$CODEseed+$courseseed+$symbchck;
- #&Apache::lonxml::debug("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
- #&Apache::lonxml::debug("rndseed :$num1:$num2:$symb");
+ #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
+ #&logthis("rndseed :$num1:$num2:$symb");
if ($_64bit) { $num1=(($num1<<32)>>32); }
if ($_64bit) { $num2=(($num2<<32)>>32); }
return "$num1:$num2";
@@ -6701,8 +6723,8 @@ sub rndseed_CODE_64bit4 {
my $courseseed=unpack("%32S*",$courseid.' ');
my $num1=$symbseed+$CODEchck;
my $num2=$CODEseed+$courseseed+$symbchck;
- #&Apache::lonxml::debug("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
- #&Apache::lonxml::debug("rndseed :$num1:$num2:$symb");
+ #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
+ #&logthis("rndseed :$num1:$num2:$symb");
if ($_64bit) { $num1=(($num1<<32)>>32); }
if ($_64bit) { $num2=(($num2<<32)>>32); }
return "$num1:$num2";
@@ -6763,8 +6785,7 @@ sub ireceipt {
my $return =&recprefix($fucourseid).'-';
if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
$env{'request.state'} eq 'construct') {
- &Apache::lonxml::debug("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname).
- " and ".($cpart%$cudom));
+ #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
$return.= ($cunique%$cuname+
$cunique%$cudom+
@@ -6787,10 +6808,48 @@ sub ireceipt {
sub receipt {
my ($part)=@_;
- my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
+ my ($symb,$courseid,$domain,$name) = &whichuser();
return &ireceipt($name,$domain,$courseid,$symb,$part);
}
+sub whichuser {
+ my ($passedsymb)=@_;
+ my ($symb,$courseid,$domain,$name,$publicuser);
+ if (defined($env{'form.grade_symb'})) {
+ my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
+ my $allowed=&allowed('vgr',$tmp_courseid);
+ if (!$allowed &&
+ exists($env{'request.course.sec'}) &&
+ $env{'request.course.sec'} !~ /^\s*$/) {
+ $allowed=&allowed('vgr',$tmp_courseid.
+ '/'.$env{'request.course.sec'});
+ }
+ if ($allowed) {
+ ($symb)=&get_env_multiple('form.grade_symb');
+ $courseid=$tmp_courseid;
+ ($domain)=&get_env_multiple('form.grade_domain');
+ ($name)=&get_env_multiple('form.grade_username');
+ return ($symb,$courseid,$domain,$name,$publicuser);
+ }
+ }
+ if (!$passedsymb) {
+ $symb=&symbread();
+ } else {
+ $symb=$passedsymb;
+ }
+ $courseid=$env{'request.course.id'};
+ $domain=$env{'user.domain'};
+ $name=$env{'user.name'};
+ if ($name eq 'public' && $domain eq 'public') {
+ if (!defined($env{'form.username'})) {
+ $env{'form.username'}.=time.rand(10000000);
+ }
+ $name.=$env{'form.username'};
+ }
+ return ($symb,$courseid,$domain,$name,$publicuser);
+
+}
+
# ------------------------------------------------------------ Serves up a file
# returns either the contents of the file or
# -1 if the file doesn't exist
@@ -7053,6 +7112,15 @@ sub clutter {
return $thisfn;
}
+sub clutter_with_no_wrapper {
+ my $uri = &clutter(shift);
+ if ($uri =~ m-^/adm/-) {
+ $uri =~ s-^/adm/wrapper/-/-;
+ $uri =~ s-^/adm/coursedocs/showdoc/-/-;
+ }
+ return $uri;
+}
+
sub freeze_escape {
my ($value)=@_;
if (ref($value)) {