--- loncom/interface/londocs.pm	2005/06/10 17:51:29	1.187
+++ loncom/interface/londocs.pm	2005/06/11 13:38:47	1.188
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Documents
 #
-# $Id: londocs.pm,v 1.187 2005/06/10 17:51:29 www Exp $
+# $Id: londocs.pm,v 1.188 2005/06/11 13:38:47 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -679,7 +679,7 @@ sub process_content {
         if ($contents) {
             $$content_file = &store_template($contents,$tempexport,$count,$content_type);
         }
-    } elsif ($symb =~ m-lib/templates/examupload\.problem-m) {
+    } elsif ($symb =~ m-lib/templates/examupload\.problem$-) {
         $content_type = 'examupload';
     } elsif ($symb =~ m-adm/(\w+)/(\w+)/(\d+)/bulletinboard$-) {
         $content_type = 'bulletinboard';
@@ -904,7 +904,7 @@ sub breadcrumbs {
 }
 
 sub editor {
-    my ($r,$coursenum,$coursedom,$folder,$allowed)=@_;
+    my ($r,$coursenum,$coursedom,$folder,$allowed,$upload_output)=@_;
     my $errtext='';
     my $fatal=0;
     my $container='sequence';
@@ -1032,46 +1032,7 @@ sub editor {
 		}
 
 	    }
-# upload a file, if present
-           if (($env{'form.uploaddoc.filename'}) &&
-               ($env{'form.cmd'}=~/^upload_(\w+)/)) {
-	    if ( ($folder=~/^$1/) || ($1 eq 'default') ) {
-            	my $destination = 'docs/';
-            	if ($folder eq 'default') {
-            	    $destination .= 'default/';
-                } elsif ($folder =~ /^default_(\d+)$/) {
-                    $destination .=  $1.'/';
-                }
-# this is for a course, not a user, so set coursedoc flag
-# probably the only place in the system where this should be "1"
-
-              my $newidx=&Apache::lonratedt::getresidx();
-              $destination .= $newidx;
-	      my $url=&Apache::lonnet::userfileupload('uploaddoc',1,$destination);
-
-              my $ext='false';
-              if ($url=~/^http\:\/\//) { $ext='true'; }
-              $url=~s/\:/\:/g;
-	      my $comment=$env{'form.comment'};
-              $comment=~s/\</\&lt\;/g;
-              $comment=~s/\>/\&gt\;/g;
-              $comment=~s/\:/\&colon;/g;
-              if ($folder=~/^supplemental/) {
-		  $comment=time.'___&&&___'.$env{'user.name'}.'___&&&___'.
-		      $env{'user.domain'}.'___&&&___'.$comment;
-              }
-              $Apache::lonratedt::resources[$newidx]=
-                  $comment.':'.$url.':'.$ext.':normal:res';
-              $Apache::lonratedt::order[$#Apache::lonratedt::order+1]=
-                                                              $newidx;       
-
-	      ($errtext,$fatal)=&storemap($coursenum,$coursedom,$folder.'.'.$container);
-	      if ($fatal) {
-		  $r->print('<p><font color="red">'.$errtext.'</font></p>');
-		  return;
-	      }
-	     }
-            }
+            $r->print($upload_output);
 	    if ($env{'form.cmd'}) {
                 my ($cmd,$idx)=split(/\_/,$env{'form.cmd'});
                 if ($cmd eq 'del') {
@@ -1214,6 +1175,127 @@ FOLDERINFO
     }
 }
 
+sub process_file_upload {
+    my ($upload_output,$coursenum,$coursedom,$allfiles,$codebase) = @_;
+# upload a file, if present
+    my $parseaction;
+    if ($env{'form.parserflag'}) {
+        $parseaction = 'parse';
+    }
+    my $phase_status;
+    my $folder=$env{'form.folder'};
+    if ($folder eq '' || $folder eq 'supplemental') {
+        $folder='default';
+    }
+    if ( ($folder=~/^$1/) || ($1 eq 'default') ) {
+        my $errtext='';
+        my $fatal=0;
+        my $container='sequence';
+        if ($env{'form.pagepath'}) {
+            $container='page';
+        }
+        ($errtext,$fatal)=
+              &mapread($coursenum,$coursedom,$folder.'.'.$container);
+        if ($#Apache::lonratedt::order<1) {
+            $Apache::lonratedt::order[0]=1;
+            $Apache::lonratedt::resources[1]='';
+        }
+        if ($fatal) {
+            return 'failed';
+        }
+        my $destination = 'docs/';
+        if ($folder eq 'default') {
+            $destination .= 'default/';
+        } elsif ($folder =~ /^default_(\d+)$/) {
+            $destination .=  $1.'/';
+        }
+# this is for a course, not a user, so set coursedoc flag
+# probably the only place in the system where this should be "1"
+        my $newidx=&Apache::lonratedt::getresidx();
+        $destination .= $newidx;
+        my $url=&Apache::lonnet::userfileupload('uploaddoc',1,$destination,$parseaction,$allfiles,$codebase);
+        my $ext='false';
+        if ($url=~/^http\:\/\//) { $ext='true'; }
+        $url=~s/\:/\&colon;/g;
+        my $comment=$env{'form.comment'};
+        $comment=~s/\</\&lt\;/g;
+        $comment=~s/\>/\&gt\;/g;
+        $comment=~s/\:/\&colon;/g;
+        if ($folder=~/^supplemental/) {
+              $comment=time.'___&&&___'.$env{'user.name'}.'___&&&___'.
+                  $env{'user.domain'}.'___&&&___'.$comment;
+        }
+
+        $Apache::lonratedt::resources[$newidx]=
+                  $comment.':'.$url.':'.$ext.':normal:res';
+        $Apache::lonratedt::order[$#Apache::lonratedt::order+1]=
+                                                              $newidx;
+        ($errtext,$fatal)=&storemap($coursenum,$coursedom,$folder.'.'.$container);
+        if ($fatal) {
+            $$upload_output .= '<p><font color="red">'.$errtext.'</font></p>';
+            return 'failed';
+        } else {
+            if ($parseaction eq 'parse') {
+                my $total_embedded = keys %{$allfiles};
+                if ($total_embedded > 0) {
+                    my $num = 0;
+                    $$upload_output .= 'This file contains embedded multimedia objects, which need to be uploaded to LON-CAPA.<br />
+   <form name="upload_embedded" action="/adm/coursedocs"
+                  method="post" enctype="multipart/form-data">
+   <input type="hidden" name="folderpath" value="'.$env{'form.folderpath'}.'" />   <input type="hidden" name="cmd" value="upload_embedded" />
+   <input type="hidden" name="newidx" value="'.$newidx.'" />
+   <input type="hidden" name="primaryurl" value="'.&Apache::lonnet::escape($url).'" />
+   <input type="hidden" name="phasetwo" value="'.$total_embedded.'" />';
+                    $$upload_output .= '<b>Upload embedded files</b>:<br />
+   <table>';
+                    foreach my $embed_file (keys %{$allfiles}) {
+                        $$upload_output .= '<tr><td>'.$embed_file.
+          '<input name="embedded_item_'.$num.'" type="file">
+           <input name="embedded_orig_'.$num.'" type="hidden" value="'.&Apache::lonnet::escape($embed_file).'"/>';
+                        my $attrib;
+                        if (@{$$allfiles{$embed_file}} > 1) {
+                            $attrib = join(':',@{$$allfiles{$embed_file}});
+                        } else {
+                            $attrib = $$allfiles{$embed_file}[0];
+                        }
+                        $$upload_output .=
+           '<input name="embedded_attrib_'.$num.'" type="hidden" value="'.$attrib.'" />';
+                        if (exists($$codebase{$embed_file})) {
+                            $$upload_output .= 
+          '<input name="codebase_'.$num.'" type="hidden" value="'.&Apache::lonnet::escape($$codebase{$embed_file}).'" />';
+                        }
+                        $$upload_output .= '</td></tr>';
+                        $num ++;
+                    }
+                    $phase_status = 'phasetwo';
+                    $$upload_output .= '</table><br />
+   <input type ="submit" value="Complete upload" />
+   </form>';
+                } else {
+                    $$upload_output .= 'No embedded items identified<br />';
+                }
+            }
+        }
+    }
+    return $phase_status;
+}
+
+sub process_secondary_uploads {
+    my ($upload_output,$coursedom,$coursenum,$formname,$num,$newidx) = @_;
+    my $folder=$env{'form.folder'};
+    my $destination = 'docs/';
+    if ($folder eq 'default') {
+        $destination .= 'default/';
+    } elsif ($folder =~ /^default_(\d+)$/) {
+        $destination .=  $1.'/';
+    }
+    $destination .= $newidx;
+    my ($url,$filename);
+    $url=&Apache::lonnet::userfileupload($formname.$num,1,$destination);
+    ($filename) = ($url =~ m-^/uploaded/$coursedom/$coursenum/$destination/(.+)$-);
+    return $filename;
+}
+
 # --------------------------------------------------------------- An entry line
 
 sub entryline {
@@ -2155,7 +2237,88 @@ ENDNEWSCRIPT
             &Apache::loncommon::bodytag('Course Documents','',$events,
 					'','',$showdoc).
 	    &Apache::loncommon::help_open_menu('','','','',273,'RAT'));
-  unless ($showdoc) {
+  my %allfiles = ();
+  my %codebase = ();
+  my ($upload_result,$upload_output);
+  if ($allowed) {
+      if (($env{'form.uploaddoc.filename'}) &&                                               ($env{'form.cmd'}=~/^upload_(\w+)/)) {
+# Process file upload - phase one - upload and parse primary file.  
+          $upload_result = &process_file_upload(\$upload_output,$coursenum,$coursedom,\%allfiles,\%codebase);
+          if ($upload_result eq 'phasetwo') {
+              $r->print($upload_output);
+          }
+      } elsif ($env{'form.phasetwo'}) {
+          my %newname = ();
+          my %origname = ();
+          my %attribs = ();
+          my $updateflag = 0;
+          my $residx = $env{'form.newidx'};
+          my $primary_url = &Apache::lonnet::unescape($env{'form.primaryurl'});
+# Process file upload - phase two - gather secondary files.
+          for (my $i=0; $i<$env{'form.phasetwo'}; $i++) {
+              if ($env{'form.embedded_item_'.$i.'.filename'}) {
+                  my $javacodebase;
+                  $newname{$i} = &process_secondary_uploads(\$upload_output,$coursedom,$coursenum,'embedded_item_',$i,$residx);
+                  $origname{$i} = &Apache::lonnet::unescape($env{'form.embedded_orig_'.$i});
+                  if (exists($env{'form.embedded_codebase_'.$i})) {
+                      $javacodebase =  &Apache::lonnet::unescape($env{'form.embedded_codebase_'.$i});  
+                      $origname{$i} =~ s#^\Q$javacodebase\E/##; 
+                  }
+                  my @attributes = ();
+                  if ($env{'form.embedded_attrib_'.$i} =~ /:/) {
+                      @attributes = split/:/,$env{'form.embedded_attrib_'.$i};
+                  } else {
+                      @attributes = ($env{'form.embedded_attrib_'.$i});
+                  }
+                  foreach (@attributes) {
+                      push(@{$attribs{$i}},&Apache::lonnet::unescape($_));
+                  }
+                  if ($javacodebase) {
+                      $codebase{$i} = $javacodebase;
+                      $codebase{$i} =~ s#/$##;
+                      $updateflag = 1;
+                  }
+              }
+              unless ($newname{$i} eq $origname{$i}) {
+                  $updateflag = 1;
+              }
+          }
+# Process file upload - phase three - modify primary file
+          if ($updateflag) {
+              my ($content,$rtncode);
+              my $updateflag = 0;
+              my $getstatus = &Apache::lonnet::getuploaded('GET',$primary_url,$coursedom,$coursenum,\$content,\$rtncode);
+              if ($getstatus eq 'ok') {
+                  foreach my $item (keys %newname) {
+                      if ($newname{$item} ne $origname{$item}) {
+                          my $attrib_regexp = '';
+                          if (@{$attribs{$item}} > 1) {
+                              $attrib_regexp = join('|',@{$attribs{$item}});
+                          } else {
+                              $attrib_regexp = $attribs{$item}[0];
+                          }
+                          if ($content =~ m#($attrib_regexp\s*=\s*['"]?)\Q$origname{$item}\E(['"]?)#) {
+                          } 
+                          $content =~ s#($attrib_regexp\s*=\s*['"]?)\Q$origname{$item}\E(['"]?)#$1$newname{$item}$2#gi; 
+                      }
+                      if (exists($codebase{$item})) {
+                          $content =~ s/(codebase\s*=\s*["']?)\Q$codebase{$item}\E(["']?)/$1.$2/i;
+                      }
+                  }
+# Save edited file.
+                  my $saveresult;
+                  my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
+                  my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
+                  my $docuhome=$env{'course.'.$env{'request.course.id'}.'.home'};
+                  my $url = &Apache::lonnet::store_edited_file($primary_url,$content,$docudom,$docuname,$docuhome,\$saveresult);
+              } else {
+                  &Apache::lonnet::logthis('retrieval of uploaded file - '.$primary_url.' - for editing, failed: '.$getstatus); 
+              }
+          }
+      }
+  }
+
+  unless ($showdoc ||  $upload_result eq 'phasetwo') {
 # -----------------------------------------------------------------------------
        my %lt=&Apache::lonlocal::texthash(
                 'uplm' => 'Upload a new main course document',
@@ -2184,7 +2347,8 @@ ENDNEWSCRIPT
                 'imsf' => 'Import IMS package',
                 'file' =>  'File',
                 'title' => 'Title',
-                'comment' => 'Comment' 
+                'comment' => 'Comment',
+                'parse' => 'If HTML file, upload embedded images/multimedia files'
 					  );
 # -----------------------------------------------------------------------------
     if ($allowed) {
@@ -2251,7 +2415,7 @@ ENDCOURSEVERIFY
            #$postexec='self.close();';
        }
        $hadchanges=0;
-       &editor($r,$coursenum,$coursedom,$folder,$allowed);
+       &editor($r,$coursenum,$coursedom,$folder,$allowed,$upload_output);
        if ($hadchanges) {
 	   &mark_hash_old()
        }
@@ -2280,6 +2444,13 @@ $lt{'title'}:<br />
 <input type="text" size="50" name="comment">
 $uploadtag
 <input type="hidden" name="cmd" value="upload_default">
+<br />
+<nobr>
+$lt{'parse'}?
+<input type="checkbox" name="parserflag" />
+</nobr>
+<br />
+<br />
 <nobr>
 <input type="submit" value="$lt{'upld'}">
  $help{'Uploading_From_Harddrive'}
@@ -2532,11 +2703,13 @@ ENDSUPFORM
     }
     $r->print('</table>');
   } else {
+      unless ($upload_result eq 'phasetwo') {
 # -------------------------------------------------------- This is showdoc mode
-      $r->print("<h1>".&mt('Uploaded Document').' - '.
+          $r->print("<h1>".&mt('Uploaded Document').' - '.
 		&Apache::lonnet::gettitle($r->uri).'</h1><p>'.
 &mt('It is recommended that you use an up-to-date virus scanner before handling this file.')."</p><p><table>".
-         &entryline(0,&mt("Click to download or use your browser's Save Link function"),$showdoc).'</table></p>');
+          &entryline(0,&mt("Click to download or use your browser's Save Link function"),$showdoc).'</table></p>');
+      }
   }
  }
  $r->print('</body></html>');