X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2Fstemmaweb%2FController%2FRoot.pm;h=c50a66019d2a05856f5367e685b616bbfd9013c0;hb=be536c891e67a3143aeef68e97ae3c351fc22149;hp=aa6329c26688e30acaa4bb5c2b62bc2d7e8dad31;hpb=ed2aaedb8e176c9a304811e70e954d982e879032;p=scpubgit%2Fstemmaweb.git

diff --git a/lib/stemmaweb/Controller/Root.pm b/lib/stemmaweb/Controller/Root.pm
index aa6329c..c50a660 100644
--- a/lib/stemmaweb/Controller/Root.pm
+++ b/lib/stemmaweb/Controller/Root.pm
@@ -3,6 +3,8 @@ use Moose;
 use namespace::autoclean;
 use Text::Tradition::Analysis qw/ run_analysis /;
 use TryCatch;
+use XML::LibXML;
+use XML::LibXML::XPathContext;
 
 
 BEGIN { extends 'Catalyst::Controller' }
@@ -51,6 +53,17 @@ sub about :Local :Args(0) {
 	$c->stash->{template} = 'about.tt';
 }
 
+=head2 help/*
+
+A dispatcher for documentation of various aspects of the application.
+
+=cut
+
+sub help :Local :Args(1) {
+	my( $self, $c, $topic ) = @_;
+	$c->stash->{template} = "$topic.tt";
+}
+
 =head1 Elements of index page
 
 =head2 directory
@@ -121,18 +134,40 @@ sub newtradition :Local :Args(0) {
 	my $tradition;
 	my $errmsg;
 	if( $ext eq 'xml' ) {
-		# Try the different XML parsing options to see if one works.
-		foreach my $type ( qw/ CollateX CTE TEI / ) {
+		my $type;
+		# Parse the XML to see which flavor it is.
+		my $parser = XML::LibXML->new();
+		my $doc;
+		try {
+			$doc = $parser->parse_file( $newopts{'file'} );
+		} catch( $err ) {
+			$errmsg = "XML file parsing error: $err";
+		}
+		if( $doc ) {
+			if( $doc->documentElement->nodeName eq 'GraphML' ) {
+				$type = 'CollateX';
+			} elsif( $doc->documentElement->nodeName ne 'TEI' ) {
+				$errmsg = 'Unrecognized XML type ' . $doc->documentElement->nodeName;
+			} else {
+				my $xpc = XML::LibXML::XPathContext->new( $doc->documentElement );
+				my $venc = $xpc->findvalue( '/TEI/teiHeader/encodingDesc/variantEncoding/attribute::method' );
+				if( $venc && $venc eq 'double-end-point' ) {
+					$type = 'CTE';
+				} else {
+					$type = 'TEI';
+				}
+			}
+		}
+		# Try the relevant XML parsing option.
+		if( $type ) {
+			delete $newopts{'file'};
+			$newopts{'xmlobj'} = $doc;
 			try {
 				$tradition = Text::Tradition->new( %newopts, 'input' => $type );
 			} catch ( Text::Tradition::Error $e ) {
 				$errmsg = $e->message;
-			} catch {
-				$errmsg = "Unexpected parsing error";
-			}
-			if( $tradition ) {
-				$errmsg = undef;
-				last;
+			} catch ( $e ) {
+				$errmsg = "Unexpected parsing error: $e";
 			}
 		}
 	} elsif( $ext =~ /^(txt|csv|xls(x)?)$/ ) {
@@ -150,8 +185,8 @@ sub newtradition :Local :Args(0) {
 				);
 		} catch ( Text::Tradition::Error $e ) {
 			$errmsg = $e->message;
-		} catch {
-			$errmsg = "Unexpected parsing error";
+		} catch ( $e ) {
+			$errmsg = "Unexpected parsing error: $e";
 		}
 	} else {
 		# Error unless we have a recognized filename extension
@@ -244,6 +279,9 @@ sub textinfo :Local :Args(1) {
 		if( exists $params->{'owner'} ) {
 			# Only admins can update user / owner
 			my $newownerid = delete $params->{'owner'};
+			if( $tradition->has_user && !$tradition->user ) {
+				$tradition->clear_user;
+			}
 			unless( !$newownerid || 
 				( $tradition->has_user && $tradition->user->email eq $newownerid ) ) {
 				unless( $c->user->get_object->is_admin ) {
@@ -284,7 +322,8 @@ sub textinfo :Local :Args(1) {
 	if( $tradition->can('language') ) {
 		$textinfo->{'language'} = $tradition->language;
 	}
-	my @stemmasvg = map { $_->as_svg() } $tradition->stemmata;
+	my @stemmasvg = map { { name => $_->identifier, svg => $_->as_svg() } } 
+		$tradition->stemmata;
 	map { $_ =~ s/\n/ /mg } @stemmasvg;
 	$textinfo->{stemmata} = \@stemmasvg;
 	$c->stash->{'result'} = $textinfo;
@@ -340,6 +379,21 @@ sub stemma :Local :Args(2) {
 	if( $c->req->method eq 'POST' ) {
 		if( $ok eq 'full' ) {
 			my $dot = $c->request->body_params->{'dot'};
+			# Graph::Reader::Dot does not handle bare unicode. We get around this
+			# by wrapping all words in double quotes, as long as they aren't already
+			# wrapped, and as long as they aren't the initial '(di)?graph .*'.
+			# Horrible HACK.
+			my @dlines = split( "\n", $dot );
+			my $wdot = '';
+			foreach( @dlines ) {
+				unless( /^(di)?graph/ ) { # Skip the first line
+					s/(?<!")\b(\w+)\b(?!")/"$1"/g;
+				}
+				$wdot .= "$_\n";
+			}
+			# $dot =~ s/(?<!")\b(?!(?:digraph|stemma)\b)(\w+)\b(?!")/"$1"/g;
+			$dot = $wdot;
+			print STDERR "$dot\n";
 			try {
 				if( $stemmaid eq 'n' ) {
 					# We are adding a new stemma.
@@ -391,7 +445,10 @@ sub stemma :Local :Args(2) {
 		$c->forward('View::SVG');
 	} else { # JSON
 		$stemma_xml =~ s/\n/ /mg;
-		$c->stash->{'result'} = { 'stemmaid' => $stemmaid, 'stemmasvg' => $stemma_xml };
+		$c->stash->{'result'} = { 
+			'stemmaid' => $stemmaid, 
+			'name' => $stemma->identifier,
+			'svg' => $stemma_xml };
 		$c->forward('View::JSON');
 	}
 }
@@ -422,6 +479,30 @@ sub stemmadot :Local :Args(2) {
 	$c->forward('View::JSON');
 }
 
+=head2 download
+
+ GET /download/$textid
+ 
+Returns the full XML definition of the tradition and its stemmata, if any.
+ 
+=cut
+
+sub download :Local :Args(1) {
+	my( $self, $c, $textid ) = @_;
+	my $tradition = $c->model('Directory')->tradition( $textid );
+	unless( $tradition ) {
+		return _json_error( $c, 404, "No tradition with ID $textid" );
+	}
+	my $ok = _check_permission( $c, $tradition );
+	return unless $ok;
+	try {
+		$c->stash->{'result'} = $tradition->collation->as_graphml();
+	} catch( Text::Tradition::Error $e ) {
+		return _json_error( $c, 500, $e->message );
+	}
+	$c->forward('View::GraphML');
+}
+
 ####################
 ### Helper functions
 ####################