--- loncom/lonnet/perl/lonnet.pm	2006/01/11 20:27:43	1.698
+++ loncom/lonnet/perl/lonnet.pm	2006/02/10 10:01:32	1.709
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.698 2006/01/11 20:27:43 albertel Exp $
+# $Id: lonnet.pm,v 1.709 2006/02/10 10:01:32 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -124,7 +124,7 @@ sub logperm {
 # -------------------------------------------------- Non-critical communication
 sub subreply {
     my ($cmd,$server)=@_;
-    my $peerfile="$perlvar{'lonSockDir'}/$server";
+    my $peerfile="$perlvar{'lonSockDir'}/".$hostname{$server};
     #
     #  With loncnew process trimming, there's a timing hole between lonc server
     #  process exit and the master server picking up the listen on the AF_UNIX
@@ -152,7 +152,7 @@ sub subreply {
     }
     my $answer;
     if ($client) {
-	print $client "$cmd\n";
+	print $client "sethost:$server:$cmd\n";
 	$answer=<$client>;
 	if (!$answer) { $answer="con_lost"; }
 	chomp($answer);
@@ -947,13 +947,50 @@ sub userenvironment {
 sub studentphoto {
     my ($udom,$unam,$ext) = @_;
     my $home=&Apache::lonnet::homeserver($unam,$udom);
-    my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext",$home);
-    my $url="/uploaded/$udom/$unam/internal/studentphoto.".$ext;
-    if ($ret ne 'ok') {
-	return '/adm/lonKaputt/lonlogo_broken.gif';
+    if (defined($env{'request.course.id'})) {
+        if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
+            if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) {
+                return(&retrievestudentphoto($udom,$unam,$ext)); 
+            } else {
+                my ($result,$perm_reqd)=
+		    &Apache::lonnet::auto_photo_permission($unam,$udom);
+                if ($result eq 'ok') {
+                    if (!($perm_reqd eq 'yes')) {
+                        return(&retrievestudentphoto($udom,$unam,$ext));
+                    }
+                }
+            }
+        }
+    } else {
+        my ($result,$perm_reqd) = 
+	    &Apache::lonnet::auto_photo_permission($unam,$udom);
+        if ($result eq 'ok') {
+            if (!($perm_reqd eq 'yes')) {
+                return(&retrievestudentphoto($udom,$unam,$ext));
+            }
+        }
+    }
+    return '/adm/lonKaputt/lonlogo_broken.gif';
+}
+
+sub retrievestudentphoto {
+    my ($udom,$unam,$ext,$type) = @_;
+    my $home=&Apache::lonnet::homeserver($unam,$udom);
+    my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext:$type",$home);
+    if ($ret eq 'ok') {
+        my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext";
+        if ($type eq 'thumbnail') {
+            $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext"; 
+        }
+        my $tokenurl=&Apache::lonnet::tokenwrapper($url);
+        return $tokenurl;
+    } else {
+        if ($type eq 'thumbnail') {
+            return '/adm/lonKaputt/genericstudent_tn.gif';
+        } else { 
+            return '/adm/lonKaputt/lonlogo_broken.gif';
+        }
     }
-    my $tokenurl=&Apache::lonnet::tokenwrapper($url);
-    return $tokenurl;
 }
 
 # -------------------------------------------------------------------- New chat
@@ -1358,8 +1395,16 @@ sub finishuserfileupload {
     }
 # Save the file
     {
-	open(FH,'>'.$filepath.'/'.$file);
-	print FH $env{'form.'.$formname};
+	if (!open(FH,'>'.$filepath.'/'.$file)) {
+	    &logthis('Failed to create '.$filepath.'/'.$file);
+	    print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
+	    return '/adm/notfound.html';
+	}
+	if (!print FH ($env{'form.'.$formname})) {
+	    &logthis('Failed to write to '.$filepath.'/'.$file);
+	    print STDERR ('Failed to write to '.$filepath.'/'.$file."\n");
+	    return '/adm/notfound.html';
+	}
 	close(FH);
     }
     if ($parser eq 'parse') {
@@ -2785,7 +2830,7 @@ sub del {
 # -------------------------------------------------------------- dump interface
 
 sub dump {
-   my ($namespace,$udomain,$uname,$regexp)=@_;
+   my ($namespace,$udomain,$uname,$regexp,$range)=@_;
    if (!$udomain) { $udomain=$env{'user.domain'}; }
    if (!$uname) { $uname=$env{'user.name'}; }
    my $uhome=&homeserver($uname,$udomain);
@@ -2794,11 +2839,11 @@ sub dump {
    } else {
        $regexp='.';
    }
-   my $rep=reply("dump:$udomain:$uname:$namespace:$regexp",$uhome);
+   my $rep=reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
    my @pairs=split(/\&/,$rep);
    my %returnhash=();
    foreach (@pairs) {
-      my ($key,$value)=split(/=/,$_);
+      my ($key,$value)=split(/=/,$_,2);
       $returnhash{unescape($key)}=&thaw_unescape($value);
    }
    return %returnhash;
@@ -3073,6 +3118,7 @@ sub customaccess {
 
 sub allowed {
     my ($priv,$uri,$symb)=@_;
+    my $ver_orguri=$uri;
     $uri=&deversion($uri);
     my $orguri=$uri;
     $uri=&declutter($uri);
@@ -3173,7 +3219,7 @@ sub allowed {
                 $thisallowed.=$1;
             }
         } else {
-            my $refuri=$env{'httpref.'.$orguri};
+            my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri};
             if ($refuri) {
                 if ($refuri =~ m|^/adm/|) {
                     $thisallowed='F';
@@ -3686,6 +3732,82 @@ sub auto_create_password {
     return ($authparam,$create_passwd,$authchk);
 }
 
+sub auto_photo_permission {
+    my ($cnum,$cdom,$students) = @_;
+    my $homeserver = &homeserver($cnum,$cdom);
+    my ($outcome,$perm_reqd,$conditions) = 
+	split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
+    if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
+	return (undef,undef);
+    }
+    return ($outcome,$perm_reqd,$conditions);
+}
+
+sub auto_checkphotos {
+    my ($uname,$udom,$pid) = @_;
+    my $homeserver = &homeserver($uname,$udom);
+    my ($result,$resulttype);
+    my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
+				   &escape($uname).':'.&escape($pid),
+				   $homeserver));
+    if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
+	return (undef,undef);
+    }
+    if ($outcome) {
+        ($result,$resulttype) = split(/:/,$outcome);
+    } 
+    return ($result,$resulttype);
+}
+
+sub auto_photochoice {
+    my ($cnum,$cdom) = @_;
+    my $homeserver = &homeserver($cnum,$cdom);
+    my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
+						       &escape($cdom),
+						       $homeserver)));
+    if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
+	return (undef,undef);
+    }
+    return ($update,$comment);
+}
+
+sub auto_photoupdate {
+    my ($affiliatesref,$dom,$cnum,$photo) = @_;
+    my $homeserver = &homeserver($cnum,$dom);
+    my $host=$hostname{$homeserver};
+    my $cmd = '';
+    my $maxtries = 1;
+    foreach (keys %{$affiliatesref}) {
+        $cmd .= $_.'='.join(",",@{$$affiliatesref{$_}}).'%%';
+    }
+    $cmd =~ s/%%$//;
+    $cmd = &escape($cmd);
+    my $query = 'institutionalphotos';
+    my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver);
+    unless ($queryid=~/^\Q$host\E\_/) {
+        &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum);
+        return 'error: '.$queryid;
+    }
+    my $reply = &get_query_reply($queryid);
+    my $tries = 1;
+    while (($reply=~/^timeout/) && ($tries < $maxtries)) {
+        $reply = &get_query_reply($queryid);
+        $tries ++;
+    }
+    if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
+        &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
+    } else {
+        my @responses = split(/:/,$reply);
+        my $outcome = shift(@responses); 
+        foreach my $item (@responses) {
+            my ($key,$value) = split(/=/,$item);
+            $$photo{$key} = $value;
+        }
+        return $outcome;
+    }
+    return 'error';
+}
+
 sub auto_instcode_format {
     my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,$cat_order) = @_;
     my $courses = '';
@@ -5227,7 +5349,7 @@ sub metadata {
 	$metaentry{':keys'}=join(',',keys %metathesekeys);
 	&metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
 	$metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
-	&do_cache_new('meta',$uri,\%metaentry,60*60*24);
+	&do_cache_new('meta',$uri,\%metaentry,60*60);
 # this is the end of "was not already recently cached
     }
     return $metaentry{':'.$what};
@@ -5323,10 +5445,17 @@ sub get_slot {
 	$cdom=$env{'course.'.$courseid.'.domain'};
 	$cnum=$env{'course.'.$courseid.'.num'};
     }
-    my %slotinfo=&get('slots',[$which],$cdom,$cnum);
-    &Apache::lonhomework::showhash(%slotinfo);
-    my ($tmp)=keys(%slotinfo);
-    if ($tmp=~/^error:/) { return (); }
+    my $key=join("\0",'slots',$cdom,$cnum,$which);
+    my %slotinfo;
+    if (exists($remembered{$key})) {
+	$slotinfo{$which} = $remembered{$key};
+    } else {
+	%slotinfo=&get('slots',[$which],$cdom,$cnum);
+	&Apache::lonhomework::showhash(%slotinfo);
+	my ($tmp)=keys(%slotinfo);
+	if ($tmp=~/^error:/) { return (); }
+	$remembered{$key} = $slotinfo{$which};
+    }
     if (ref($slotinfo{$which}) eq 'HASH') {
 	return %{$slotinfo{$which}};
     }
@@ -6066,6 +6195,11 @@ sub filelocation {
     my ($dir,$file) = @_;
     my $location;
     $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
+
+    if ($file =~ m-^/adm/-) {
+	$file=~s-^/adm/wrapper/-/-;
+	$file=~s-^/adm/coursedocs/showdoc/-/-;
+    }
     if ($file=~m:^/~:) { # is a contruction space reference
         $location = $file;
         $location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:;
@@ -6105,6 +6239,9 @@ sub hreflocation {
     my ($dir,$file)=@_;
     unless (($file=~m-^http://-i) || ($file=~m-^/-)) {
 	$file=filelocation($dir,$file);
+    } elsif ($file=~m-^/adm/-) {
+	$file=~s-^/adm/wrapper/-/-;
+	$file=~s-^/adm/coursedocs/showdoc/-/-;
     }
     if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
 	$file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
@@ -7032,10 +7169,15 @@ namesp ($udom and $uname are optional)
 
 =item *
 
-dump($namespace,$udom,$uname,$regexp) : 
+dump($namespace,$udom,$uname,$regexp,$range) : 
 dumps the complete (or key matching regexp) namespace into a hash
-($udom, $uname and $regexp are optional)
+($udom, $uname, $regexp, $range are optional)
 
+$range should be either an integer '100' (give me the first 100
+                                           matching records)
+              or be  two integers sperated by a - with no spaces
+                 '30-50' (give me the 30th through the 50th matching
+                          records)
 =item *
 
 inc($namespace,$store,$udom,$uname) : increments $store in $namespace.