--- loncom/publisher/loncfile.pm	2002/09/10 02:31:26	1.18
+++ loncom/publisher/loncfile.pm	2003/08/01 20:32:05	1.35
@@ -7,10 +7,9 @@
 #  presents a page that describes the proposed action to the user
 #  and requests confirmation.  The second phase commits the action
 #  and displays a page showing the results of the action.
-# 
-
 #
-# $Id: loncfile.pm,v 1.18 2002/09/10 02:31:26 foxr Exp $
+#
+# $Id: loncfile.pm,v 1.35 2003/08/01 20:32:05 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -93,6 +92,7 @@ use Apache::Constants qw(:common :http :
 use Apache::loncacc;
 use Apache::Log ();
 use Apache::lonnet;
+use Apache::loncommon();
 
 my $DEBUG=0;
 my $r;				# Needs to be global for some stuff RF.
@@ -128,7 +128,7 @@ sub Debug {
   my $log     = $r->log;
   my $message = shift;
   
-  # Put out the indicated message butonly if DEBUG is false.
+  # Put out the indicated message butonly if DEBUG is true.
   
   if ($DEBUG) {
     $log->debug($message);
@@ -173,8 +173,9 @@ Global References
 sub URLToPath {
   my $Url = shift;
   &Debug($r, "UrlToPath got: $Url");
-  $Url=~ s/^http\:\/\/[^\/]+\/\~(\w+)/\/home\/$1\/public_html/;
   $Url=~ s/^http\:\/\/[^\/]+//;
+  $Url=~ s/^\///;
+  $Url=~ s/(\~|priv\/)(\w+)\//\/home\/$2\/public_html\//;
   &Debug($r, "Returning $Url \n");
   return $Url;
 }
@@ -323,20 +324,24 @@ sub exists {
   my ($user, $domain, $dir, $file) = @_;
 
   # Create complete paths in publication and construction space.
-
-  my $published = &PublicationPath($domain, $user, $dir, $file);
-  my $construct = &ConstructionPath($user, $dir, $file);
+  my $relativedir=$dir;
+  $relativedir=s|/home/\Q$user\E/public_html||;
+  my $published = &PublicationPath($domain, $user, $relativedir, $file);
+  my $construct = &ConstructionPath($user, $relativedir, $file);
 
   # If the resource exists in either space indicate this fact.
   # Note that the check for existence in resource space is stricter.
 
   my $result;    
+  if ( -d $construct ) {
+      return 'Error: destination for operation is a directory.';
+  }
   if ( -e $published) {
-    $result.='<p><font color=red>Warning: target file exists, and has been published!</font></p>';
+      $result.='<p><font color="red">Warning: target file exists, and has been published!</font></p>';
   }
   elsif ( -e $construct) {
-    $result.='<p><font color=red>Warning: target file exists!</font></p>';
-   }
+      $result.='<p><font color="red">Warning: target file exists!</font></p>';
+  }
 
   return $result;
 
@@ -380,10 +385,21 @@ sub checksuffix {
     if ($old=~m:(.*)/+([^/]+)\.(\w+)$:) { $oldsuffix=$3; }
     if ($oldsuffix ne $newsuffix) {
 	$result.=
-            '<p><font color=red>Warning: change of MIME type!</font></p>';
+            '<p><font color="red">Warning: change of MIME type!</font></p>';
     }
     return $result;
 }
+
+sub cleanDest {
+    my ($request,$dest)=@_;
+    #remove bad characters
+    if  ($dest=~/[\#\?&]/) {
+	$request->print("<p><font color=\"red\">Invalid characters in requested name have been removed.</font></p>");
+	$dest=~s/[\#\?&]//g;
+    }
+    return $dest;
+}
+
 =pod
 
 =item CloseForm1($request, $user, $file)
@@ -407,9 +423,9 @@ sub CloseForm1 {
 
 
    &Debug($request, "Cancel url is: ".$cancelurl);
-   $request->print('<p><input type=submit value=Continue></p></form>');
+   $request->print('<p><input type="submit" value="Continue" /></p></form>');
    $request->print('<form action="'.$cancelurl.
-		   '" method=GET"><p><input type=submit value=Cancel><p></form>');
+		   '" method="POST"><p><input type="submit" value="Cancel" /></p></form>');
 
 }
 
@@ -441,7 +457,7 @@ Parameters:
 sub CloseForm2 {
   my ($request, $user, $directory) = @_;
 
-  $request->print('<h3><a=href="/priv/'.$user.$directory.'/">Done </a> </h3>');
+  $request->print('<h3><a href="/priv/'.$user.$directory.'/">Done </a> </h3>');
 }
 
 =pod
@@ -491,12 +507,31 @@ sub Rename1 {
     if(-e $conspace) {
 	if($ENV{'form.newfilename'}) {
 	    my $newfilename = $ENV{'form.newfilename'};
+	    if ($newfilename =~ m|/[^\.]+$|) {
+		#no extension add on orignal extension
+		if ($filename =~ m|/[^\.]*\.([^\.]+)$|) {
+		    $newfilename.='.'.$1;
+		}
+	    }
 	    $request->print(&checksuffix($filename, $newfilename));
-	    $request->print(&exists($user, $domain, $dir, $newfilename));
-	    $request->print('<input type=hidden name=newfilename value="'.
+	    #renaming a dir, delete the trailing /
+            #remove last element for current dir
+	    if ($filename =~ m|/$|) {
+		$filename =~ s|/$||;
+		$dir =~ s|/[^/]*$||;
+	    }
+	    my $return=&exists($user, $domain, $dir, $newfilename);
+	    $request->print($return);
+	    if ($return =~/^Error:/) {
+		$request->print('<br /><a href="'.$cancelurl.'">Cancel</a>');
+		return;
+	    }
+	    my $dest=&SimplifyDir($dir,$newfilename);
+	    $request->print('<input type="hidden" name="newfilename" value="'.
 			    $newfilename.
-			    '"><p>Rename <tt>'.$filename.'</tt> to <tt>'.
-			    $dir.'/'.$newfilename.'</tt>?</p>');
+			    '" /><p>Rename <tt>'.$filename.
+			    '</tt><br /> to <tt>'.
+			    $dest.'</tt>?</p>');
 	    &CloseForm1($request, $cancelurl);
 	} else {
 	    $request->print('<p>No new filename specified</p></form>');
@@ -541,8 +576,8 @@ sub Delete1 {
   
 
   if( -e $filename) {
-    $request->print('<input type=hidden name=newfilename value="'.
-		    $filename.'">');
+    $request->print('<input type="hidden" name="newfilename" value="'.
+		    $filename.'"/>');
     $request->print('<p> Delete <tt>'.$filename.'</tt>?</p>');
     &CloseForm1($request, $cancelurl);
   } else {
@@ -587,14 +622,19 @@ sub Copy1 {
   $cancelurl    =~ s/\/public_html//;
     
 
-
   if(-e $filename) {
     $request->print(&checksuffix($filename,$newfilename));
-    $request->print(&exists($user, $domain, $dir, $newfilename));
-    $request->print('<input type = hidden name = newfilename value = "'.
+    my $return=&exists($user, $domain, $dir, $newfilename);
+    $request->print($return);
+    if ($return =~/^Error:/) {
+	$request->print('<br /><a href="'.$cancelurl.'">Cancel</a>');
+	return;
+    }
+    my $dest=&SimplifyDir($dir,$newfilename);
+    $request->print('<input type = "hidden" name = "newfilename" value = "'.
 		    $dir.'/'.$newfilename.
-		    '"><p>Copy <tt>'.$filename.'</tt> to'.
-		    '<tt>'.$dir.'/'.$newfilename.'</tt>/?</p>');
+		    '" /><p>Copy <tt>'.$filename.'</tt><br />  to '.
+		    '<tt>'.$dest.'</tt>?</p>');
     &CloseForm1($request, $cancelurl);
   } else {
     $request->print('<p>No such file <tt>'.$filename.'</p></form>');
@@ -603,6 +643,34 @@ sub Copy1 {
 
 =pod
 
+=item SimplifyDir
+
+  Removes all extra / and all .. references
+
+Parameters:
+
+=over 4
+
+=item $dir - string [in] a directory name
+
+=item $file - string [in] a file reference relative to $dir
+
+=back
+
+Results: the concatenated path.
+
+=cut
+
+sub SimplifyDir {
+    my ($dir,$file) = @_;
+    my $location = $dir. '/'.$file;
+    $location=~s://+:/:g; # remove duplicate /
+    while ($location=~m:/\.\./:) {$location=~s:/[^/]+/\.\./:/:g;}#remove dir/..
+    return $location;
+}
+
+=pod
+
 =item NewDir1
  
   Does all phase 1 processing of directory creation:
@@ -653,8 +721,8 @@ sub NewDir1
     $request->print('<p>Directory exists.</p></form>');
   }
   else {
-    $request->print('<input type=hidden name=newfilename value="'.
-		    $newdir.'"><p>Make new directory <tt>'.
+    $request->print('<input type="hidden" name="newfilename" value="'.
+		    $newdir.'" /><p>Make new directory <tt>'.
 		    $path."/".$newdir.'</tt>?</p>');
     &CloseForm1($request, $cancelurl);
 
@@ -663,6 +731,88 @@ sub NewDir1
 
 =pod
 
+=item NewFile1
+ 
+  Does all phase 1 processing of file creation:
+  Ensures that the user provides a new filename, adds proper extension
+  if needed and that the file does not already exist, if it is a html,
+  problem, page, or sequence, it then creates a form link to hand the
+  actual creation off to the proper handler.
+
+Parameters:
+
+=over 4
+
+=item   $request  - Apache Request Object [in] - Server request object for the
+               current url.
+
+=item   $username - Name of the user that is requesting the directory creation.
+
+=item   $domain   - Name of the domain of the user
+
+=item   $dir      - current absolute diretory
+
+=item   $newfilename
+                  - Name of the file to be created; no path information
+=back
+
+Side Effects:
+
+=over 4
+
+=item 2 new forms are displayed.  Clicking on the confirmation button
+causes the browser to attempt to load the specfied URL, allowing the
+proper handler to take care of file creation. There is also a Cancle
+button which returns you to the driectory listing you came from
+
+=back
+
+=cut
+
+
+sub NewFile1 {
+    my ($request, $user, $domain, $dir, $newfilename) = @_;
+
+    &Debug($request, "Dir is : ".$dir);
+    &Debug($request, "Newfile is : ".$newfilename);
+
+    my $cancelurl = "/priv/".$dir;
+    $cancelurl    =~ s/\/home\///;
+    $cancelurl    =~ s/\/public_html//;
+
+    if ($ENV{'form.action'} =~ /new(.+)file/) {
+	my $extension=$1;
+	if ($newfilename !~ /\Q.$extension\E$/) {
+	    if ($newfilename =~ m|^[^\.]*\.([^\.]+)$|) {
+		#already has an extension strip it and add in expected one
+		$newfilename =~ s|.([^\.]+)$||;
+	    }
+	    $newfilename.=".$extension";
+	}
+    }
+
+    my $fullpath = $dir.'/'.$newfilename;
+
+    &Debug($request, "Full path is : ".$fullpath);
+
+    if(-e $fullpath) {
+	$request->print('<p>File exists.</p></form>');
+    }
+    else {
+	$request->print('<p>Make new file <tt>'.$dir.'/'.$newfilename.'</tt>?</p>');
+	my $dest=&MakeFinalUrl($request,$fullpath);
+	&Debug($request, "Cancel url is: ".$cancelurl);
+	&Debug($request, "Dest url is: ".$dest);
+	$request->print('</form>');
+	$request->print('<form action="'.$dest.
+			'" method="POST"><p><input type="submit" value="Continue" /></p></form>');
+	$request->print('<form action="'.$cancelurl.
+			'" method="POST"><p><input type="submit" value="Cancel" /></p></form>');
+    }
+}
+
+=pod
+
 =item phaseone($r, $fn, $uname, $udom)
 
   Peforms phase one processing of the request.  In phase one, error messages
@@ -699,16 +849,19 @@ sub phaseone {
   
   #  my $conspace=ConstructionPathFromRelative($uname, $fn);
   
-  
-  $r->print('<form action=/adm/cfile method=post>'.
-	    '<input type=hidden name=filename value="/~'.$uname.$fn.'">'.
-	    '<input type=hidden name=phase value=two>'.
-	    '<input type=hidden name=action value='.$ENV{'form.action'}.'>');
+  $ENV{'form.newfilename'}=&cleanDest($r,$ENV{'form.newfilename'});
+
+  $r->print('<form action="/adm/cfile" method="post">'.
+	    '<input type="hidden" name="filename" value="/~'.$uname.$fn.'" />'.
+	    '<input type="hidden" name="phase" value="two" />'.
+	    '<input type="hidden" name="action" value="'.$ENV{'form.action'}.'" />');
   
   if ($ENV{'form.action'} eq 'rename') {
-    
-    &Rename1($r, $fn, $uname, $udom, $dir);
-    
+      if (!defined($dir)) {
+	  $fn=~m:(.*)/:;
+	  $dir=$1;
+      }
+      &Rename1($r, $fn, $uname, $udom, $dir);
   } elsif ($ENV{'form.action'} eq 'delete') { 
     
     &Delete1($r, $uname, $fn);
@@ -722,8 +875,25 @@ sub phaseone {
     }
   } elsif ($ENV{'form.action'} eq 'newdir') {
     &NewDir1($r, $uname, $dir, $ENV{'form.newfilename'});
+  }  elsif ($ENV{'form.action'} eq 'newfile' ||
+	    $ENV{'form.action'} eq 'newhtmlfile' ||
+	    $ENV{'form.action'} eq 'newproblemfile' ||
+            $ENV{'form.action'} eq 'newpagefile' ||
+            $ENV{'form.action'} eq 'newsequencefile' ||
+            $ENV{'form.action'} eq 'newrightsfile' ||
+            $ENV{'form.action'} eq 'newstyfile' ||
+            $ENV{'form.action'} eq 'Select Action') {
+      if($ENV{'form.newfilename'}) {
+	  my $newfilename = $ENV{'form.newfilename'};
+	  if (!defined($dir)) {
+	      $fn=~m:(.*)/:;
+	      $dir=$1;
+	  }
+	  &NewFile1($r, $uname, $udom, $dir, $newfilename);
+      } else {
+	  $r->print('<p>No new filename specified.</p></form>');
+      }
   }
-  
 }
 
 =pod
@@ -770,9 +940,20 @@ sub Rename2 {
 	 $newfile);
 
   if(-e $oldfile) {
-      unless(rename($oldfile,
-		    $directory.'/'.$newfile)) {
-	  $request->print('<font color=red>Error: '.$!.'</font>');
+      my $dest;
+
+      if ($oldfile =~ m|/$|) {
+	  #renaming a dir
+	  $oldfile =~ s|/$||;
+	  $dest=$directory;
+	  $dest=~s|(/)([^/]*)$|$1|;
+	  $dest.='/'.$newfile;
+      } else {
+	  $dest=$directory.'/'.$newfile;
+      }
+
+      unless(rename($oldfile,$dest)) {
+	  $request->print('<font color="red">Error: '.$!.'</font>');
 	  return 0;
       } else {}
   } else {
@@ -816,11 +997,11 @@ sub Delete2 {
 
   if(-e $filename) {
     unless(unlink($filename)) {
-      $request->print('<font color=red>Error: '.$!.'</font>');
+      $request->print('<font color="red">Error: '.$!.'</font>');
       return 0;
     }
   } else {
-    $request->print('<p> No such file. </form');
+    $request->print('<p> No such file. </p></form');
     return 0;
   }
   return 1;
@@ -859,11 +1040,11 @@ sub Copy2 {
     &Debug($request ,"Will try to copy $oldfile to $newfile");
     if(-e $oldfile) {
 	unless (copy($oldfile, $newfile)) {
-	    $request->print('<font color=red> copy Error: '.$!.'</font>');
+	    $request->print('<font color="red"> copy Error: '.$!.'</font>');
 	    return 0;
 	} else {
 	    unless (chmod(0660, $newfile)) {
-		$request->print('<font color=red> chmod error: '.$!.'</font>');
+		$request->print('<font color="red"> chmod error: '.$!.'</font>');
 		return 0;
 	    }
 	    return 1;
@@ -900,11 +1081,11 @@ sub NewDir2 {
   my ($request, $user, $newdirectory) = @_;
   
   unless(mkdir($newdirectory, 02770)) {
-    $request->print('<font color=red>Error: '.$!.'</font>');
+    $request->print('<font color="red">Error: '.$!.'</font>');
     return 0;
   }
   unless(chmod(02770, ($newdirectory))) {
-      $request->print('<font color=red> Error: '.$!.'</font>');
+      $request->print('<font color="red"> Error: '.$!.'</font>');
       return 0;
   }
   return 1;
@@ -949,11 +1130,16 @@ sub phasetwo {
     
     # Break down the file into it's component pieces.
     
-    $fn=~/(.*)\/([^\/]+)\.(\w+)$/;
-    my $dir=$1;			# Directory path
-    my $main=$2;		# Filename.
-    my $suffix=$3;		# Extension.
-    
+    my $dir;		# Directory path
+    my $main;		# Filename.
+    my $suffix;		# Extension.
+
+    if ($fn=~m:(.*)/([^/]+)\.(\w+)$:) {
+	$dir=$1;		# Directory path
+	$main=$2;		# Filename.
+	$suffix=$3;		# Extension.
+    }
+        
     my $dest;                   # On success this is where we'll go.
     
     &Debug($r, 
@@ -973,12 +1159,19 @@ sub phasetwo {
     
     if ($ENV{'form.action'} eq 'rename') { # Rename.
 	if($ENV{'form.newfilename'}) {
+	    if (!defined($dir)) {
+		$fn=~m:^(.*)/:;
+		$dir=$1;
+	    }
 	    if(!&Rename2($r, $uname, $dir, $fn, $ENV{'form.newfilename'})) {
 		return;
 	    }
 	    # Prepend the directory to the new name to form the basis of the
 	    # url of the new resource.
 	    #
+	    #renaming a dir
+            #remove last element for current dir
+	    if ($fn =~ m|/$|) { $dir =~ s|/[^/]*$||; }
 	    $dest = $dir."/".$ENV{'form.newfilename'};
 	}
     } elsif ($ENV{'form.action'} eq 'delete') { 
@@ -988,7 +1181,7 @@ sub phasetwo {
 	# Once a resource is deleted, we just list the directory that
 	# previously held it.
 	#
-	$dest = $dir."/";		# Parent dir.
+	$dest = $dir."/.";		# Parent dir.
     } elsif ($ENV{'form.action'} eq 'copy') { 
 	if($ENV{'form.newfilename'}) {
 	    if(!&Copy2($r, $uname, $dir, $fn, $ENV{'form.newfilename'})) {
@@ -997,7 +1190,7 @@ sub phasetwo {
 	    $dest = $ENV{'form.newfilename'};
      
 	} else {
-	    $r->print('<p>No New filename specified</form>');
+	    $r->print('<p>No New filename specified</p></form>');
 	    return;
 	}
 	
@@ -1016,18 +1209,24 @@ sub phasetwo {
     #  Substitute for priv for the first home in $dir to get our
     # construction space path.
     #
+    $dest=&MakeFinalUrl($r,$dest);
+
+    $r->print('<h3><a href="'.$dest.'">Done</a></h3>');
+}
+
+sub MakeFinalUrl {
+    my($r,$dest)=@_;
     &Debug($r, "Final url is: $dest");
-    $dest =~ s/\/home\//\/priv\//;
-    $dest =~ s/\/public_html//;
-    
+    $dest =~ s|/home/|/priv/|;
+    $dest =~ s|/public_html||;
+
     my $base = &File::Basename::basename($dest);
     my $dpath= &File::Basename::dirname($dest);
+    if ($base eq '.') { $base=''; }
     $dest = &HTML::Entities::encode($dpath.'/'.$base);
 
-
     &Debug($r, "Final url after rewrite: $dest");
-
-    $r->print('<h3><a href="'.$dest.'">Done</a></h3>');
+    return $dest;
 }
 
 sub handler {
@@ -1042,13 +1241,8 @@ sub handler {
   my $fn;
 
   if ($ENV{'form.filename'}) {
-      $fn=$ENV{'form.filename'};
-      &Debug($r, "loncfile::handler - raw url: $fn");
-#      $fn=~s/^http\:\/\/[^\/]+\/\~(\w+)/\/home\/$1\/public_html/;
-#      $fn=~s/^http\:\/\/[^\/]+//;
-      $fn=URLToPath($fn);
-      &Debug($r, "loncfile::handler - doctored url: $fn");
-
+      $fn=&Apache::lonnet::unescape($ENV{'form.filename'});
+      $fn=&URLToPath($fn);
   } else {
       &Debug($r, "loncfile::handler - no form.filename");
      $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
@@ -1087,14 +1281,13 @@ sub handler {
 
   $r->print('<html><head><title>LON-CAPA Construction Space</title></head>');
 
-  $r->print(
-   '<body bgcolor="#FFFFFF"><img align=right src=/adm/lonIcons/lonlogos.gif>');
+  $r->print(&Apache::loncommon::bodytag('File Operation'));
 
   
   $r->print('<h1>Construction Space <tt>'.$fn.'</tt></h1>');
   
   if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {
-          $r->print('<h3><font color=red>Co-Author: '.$uname.' at '.$udom.
+          $r->print('<h3><font color="red">Co-Author: '.$uname.' at '.$udom.
                '</font></h3>');
   }
 
@@ -1109,8 +1302,17 @@ sub handler {
       $r->print('<h3>New Directory</h3>');
   } elsif ($ENV{'form.action'} eq 'copy') {
       $r->print('<h3>Copy</h3>');
+  } elsif ($ENV{'form.action'} eq 'newfile' ||
+	   $ENV{'form.action'} eq 'newhtmlfile' ||
+	   $ENV{'form.action'} eq 'newproblemfile' ||
+           $ENV{'form.action'} eq 'newpagefile' ||
+           $ENV{'form.action'} eq 'newsequencefile' ||
+	   $ENV{'form.action'} eq 'newrightsfile' ||
+	   $ENV{'form.action'} eq 'newstyfile' ||
+           $ENV{'form.action'} eq 'Select Action' ) {
+      $r->print('<h3>New Resource</h3>');
   } else {
-     $r->print('<p>Unknown Action</body></html>');
+     $r->print('<p>Unknown Action '.$ENV{'form.action'}.' </p></body></html>');
      return OK;  
   }
   if ($ENV{'form.phase'} eq 'two') {