diff options
| -rw-r--r-- | IkiWiki/Plugin/osm.pm | 541 |
1 files changed, 541 insertions, 0 deletions
diff --git a/IkiWiki/Plugin/osm.pm b/IkiWiki/Plugin/osm.pm new file mode 100644 index 0000000..c9c5646 --- /dev/null +++ b/IkiWiki/Plugin/osm.pm @@ -0,0 +1,541 @@ +#!/usr/bin/perl +# Copyright 2011 Blars Blarson +# Released under GPL version 2 + +package IkiWiki::Plugin::osm; +use utf8; +use strict; +use warnings; +use IkiWiki 3.0; + +sub import { + add_underlay("osm"); + hook(type => "getsetup", id => "osm", call => \&getsetup); + hook(type => "format", id => "osm", call => \&format); + hook(type => "preprocess", id => "osm", call => \&preprocess); + hook(type => "preprocess", id => "waypoint", call => \&process_waypoint); + hook(type => "savestate", id => "waypoint", call => \&savestate); + hook(type => "cgi", id => "osm", call => \&cgi); +} + +sub getsetup () { + return + plugin => { + safe => 1, + rebuild => 1, + section => "special-purpose", + }, + osm_default_zoom => { + type => "integer", + example => "15", + description => "the default zoom when you click on the map link", + safe => 1, + rebuild => 1, + }, + osm_default_icon => { + type => "string", + example => "ikiwiki/images/osm.png", + description => "the icon shown on links and on the main map", + safe => 0, + rebuild => 1, + }, + osm_alt => { + type => "string", + example => "", + description => "the alt tag of links, defaults to empty", + safe => 0, + rebuild => 1, + }, + osm_format => { + type => "string", + example => "KML", + description => "the output format for waypoints, can be KML, GeoJSON or CSV (one or many, comma-separated)", + safe => 1, + rebuild => 1, + }, + osm_tag_default_icon => { + type => "string", + example => "icon.png", + description => "the icon attached to a tag, displayed on the map for tagged pages", + safe => 0, + rebuild => 1, + }, +} + +sub preprocess { + my %params=@_; + my $page = $params{page}; + my $dest = $params{destpage}; + my $loc = $params{loc}; # sanitized below + my $lat = $params{lat}; # sanitized below + my $lon = $params{lon}; # sanitized below + my $href = $params{href}; + + my ($width, $height, $float); + $height = scrub($params{'height'} || "300px", $page, $dest); # sanitized here + $width = scrub($params{'width'} || "500px", $page, $dest); # sanitized here + $float = (defined($params{'right'}) && 'right') || (defined($params{'left'}) && 'left'); # sanitized here + + my $zoom = scrub($params{'zoom'} // $config{'osm_default_zoom'} // 15, $page, $dest); # sanitized below + my $map; + $map = $params{'map'} || 'map'; + + $map = scrub($map, $page, $dest); # sanitized here + my $name = scrub($params{'name'} || $map, $page, $dest); + + if (defined($lon) || defined($lat) || defined($loc)) { + ($lon, $lat) = scrub_lonlat($loc, $lon, $lat); + } + + if ($zoom !~ /^\d\d?$/ || $zoom < 2 || $zoom > 18) { + error("Bad zoom"); + } + + if (! defined $href || ! length $href) { + $href=IkiWiki::cgiurl( + do => "osm", + map => $map, + ); + } + + $pagestate{$page}{'osm'}{$map}{'displays'}{$name} = { + height => $height, + width => $width, + float => $float, + zoom => $zoom, + fullscreen => 0, + editable => defined($params{'editable'}), + lat => $lat, + lon => $lon, + href => $href, + }; + return "<div id=\"mapdiv-$name\"></div>"; +} + +sub process_waypoint { + my %params=@_; + my $loc = $params{'loc'}; # sanitized below + my $lat = $params{'lat'}; # sanitized below + my $lon = $params{'lon'}; # sanitized below + my $page = $params{'page'}; # not sanitized? + my $dest = $params{'destpage'}; # not sanitized? + my $hidden = defined($params{'hidden'}); # sanitized here + my ($p) = $page =~ /(?:^|\/)([^\/]+)\/?$/; # shorter page name + my $name = scrub($params{'name'} || $p, $page, $dest); # sanitized here + my $desc = scrub($params{'desc'} || '', $page, $dest); # sanitized here + my $zoom = scrub($params{'zoom'} // $config{'osm_default_zoom'} // 15, $page, $dest); # sanitized below + my $icon = $config{'osm_default_icon'} || "ikiwiki/images/osm.png"; # sanitized: we trust $config + my $map = scrub($params{'map'} || 'map', $page, $dest); # sanitized here + my $alt = $config{'osm_alt'} ? "alt=\"$config{'osm_alt'}\"" : ''; # sanitized: we trust $config + if ($zoom !~ /^\d\d?$/ || $zoom < 2 || $zoom > 18) { + error("Bad zoom"); + } + + ($lon, $lat) = scrub_lonlat($loc, $lon, $lat); + if (!defined($lat) || !defined($lon)) { + error("Must specify lat and lon"); + } + + my $tag = $params{'tag'}; + foreach my $t (keys %{$typedlinks{$page}{'tag'}}) { + if ($icon = get_tag_icon($t)) { + $tag = $t; + last; + } + $t =~ s!/$config{'tagbase'}/!!; + if ($icon = get_tag_icon($t)) { + $tag = $t; + last; + } + } + $icon = urlto($icon, $dest, 1); + $tag = '' unless $tag; + if ($page eq $dest) { + my %formats = get_formats(); + if ($formats{'GeoJSON'}) { + will_render($page, "$map/pois.json"); + } + if ($formats{'CSV'}) { + will_render($page, "$map/pois.txt"); + } + if ($formats{'KML'}) { + will_render($page, "$map/pois.kml"); + } + } + $pagestate{$page}{'osm'}{$map}{'waypoints'}{$name} = { + page => $page, + desc => $desc, + icon => $icon, + tag => $tag, + lat => $lat, + lon => $lon, + # How to link back to the page from the map, not to be + # confused with the URL of the map itself sent to the + # embeded map below. Note: used in generated KML etc file, + # so must be absolute. + href => urlto($page), + }; + + my $mapurl = IkiWiki::cgiurl( + do => "osm", + map => $map, + lat => $lat, + lon => $lon, + zoom => $zoom, + ); + my $output = ''; + if (defined($params{'embed'})) { + $output .= preprocess(%params, + href => $mapurl, + ); + } + if (!$hidden) { + $output .= "<a href=\"$mapurl\"><img class=\"img\" src=\"$icon\" $alt /></a>"; + } + return $output; +} + +# get the icon from the given tag +sub get_tag_icon($) { + my $tag = shift; + # look for an icon attached to the tag + my $attached = $tag . '/' . $config{'osm_tag_default_icon'}; + if (srcfile($attached)) { + return $attached; + } + else { + return undef; + } +} + +sub scrub_lonlat($$$) { + my ($loc, $lon, $lat) = @_; + if ($loc) { + if ($loc =~ /^\s*(\-?\d+(?:\.\d*°?|(?:°?|\s)\s*\d+(?:\.\d*\'?|(?:\'|\s)\s*\d+(?:\.\d*)?\"?|\'?)°?)[NS]?)\s*\,?\;?\s*(\-?\d+(?:\.\d*°?|(?:°?|\s)\s*\d+(?:\.\d*\'?|(?:\'|\s)\s*\d+(?:\.\d*)?\"?|\'?)°?)[EW]?)\s*$/) { + $lat = $1; + $lon = $2; + } + else { + error("Bad loc"); + } + } + if (defined($lat)) { + if ($lat =~ /^(\-?)(\d+)(?:(\.\d*)°?|(?:°|\s)\s*(\d+)(?:(\.\d*)\'?|(?:\'|\s)\s*(\d+(?:\.\d*)?\"?)|\'?)|°?)\s*([NS])?\s*$/) { + $lat = $2 + ($3//0) + ((($4//0) + (($5//0) + (($6//0)/60.)))/60.); + if (($1 eq '-') || (($7//'') eq 'S')) { + $lat = - $lat; + } + } + else { + error("Bad lat"); + } + } + if (defined($lon)) { + if ($lon =~ /^(\-?)(\d+)(?:(\.\d*)°?|(?:°|\s)\s*(\d+)(?:(\.\d*)\'?|(?:\'|\s)\s*(\d+(?:\.\d*)?\"?)|\'?)|°?)\s*([EW])?$/) { + $lon = $2 + ($3//0) + ((($4//0) + (($5//0) + (($6//0)/60.)))/60.); + if (($1 eq '-') || (($7//'') eq 'W')) { + $lon = - $lon; + } + } + else { + error("Bad lon"); + } + } + if ($lat < -90 || $lat > 90 || $lon < -180 || $lon > 180) { + error("Location out of range"); + } + return ($lon, $lat); +} + +sub savestate { + my %waypoints = (); + my %linestrings = (); + + foreach my $page (keys %pagestate) { + if (exists $pagestate{$page}{'osm'}) { + foreach my $map (keys %{$pagestate{$page}{'osm'}}) { + foreach my $name (keys %{$pagestate{$page}{'osm'}{$map}{'waypoints'}}) { + debug("found waypoint $name"); + $waypoints{$map}{$name} = $pagestate{$page}{'osm'}{$map}{'waypoints'}{$name}; + } + } + } + } + + foreach my $page (keys %pagestate) { + if (exists $pagestate{$page}{'osm'}) { + foreach my $map (keys %{$pagestate{$page}{'osm'}}) { + # examine the links on this page + foreach my $name (keys %{$pagestate{$page}{'osm'}{$map}{'waypoints'}}) { + if (exists $links{$page}) { + foreach my $otherpage (@{$links{$page}}) { + if (exists $waypoints{$map}{$otherpage}) { + push(@{$linestrings{$map}}, [ + [ $waypoints{$map}{$name}{'lon'}, $waypoints{$map}{$name}{'lat'} ], + [ $waypoints{$map}{$otherpage}{'lon'}, $waypoints{$map}{$otherpage}{'lat'} ] + ]); + } + } + } + } + } + # clear the state, it will be regenerated on the next parse + # the idea here is to clear up removed waypoints... + $pagestate{$page}{'osm'} = (); + } + } + + my %formats = get_formats(); + if ($formats{'GeoJSON'}) { + writejson(\%waypoints, \%linestrings); + } + if ($formats{'CSV'}) { + writecsvs(\%waypoints, \%linestrings); + } + if ($formats{'KML'}) { + writekml(\%waypoints, \%linestrings); + } +} + +sub writejson($;$) { + my %waypoints = %{$_[0]}; + my %linestrings = %{$_[1]}; + eval q{use JSON}; + error $@ if $@; + foreach my $map (keys %waypoints) { + my %geojson = ( "type" => "FeatureCollection", "features" => []); + foreach my $name (keys %{$waypoints{$map}}) { + my %marker = ( "type" => "Feature", + "geometry" => { "type" => "Point", "coordinates" => [ $waypoints{$map}{$name}{'lon'}, $waypoints{$map}{$name}{'lat'} ] }, + "properties" => $waypoints{$map}{$name} ); + push @{$geojson{'features'}}, \%marker; + } + foreach my $linestring (@{$linestrings{$map}}) { + my %json = ( "type" => "Feature", + "geometry" => { "type" => "LineString", "coordinates" => $linestring }); + push @{$geojson{'features'}}, \%json; + } + writefile("pois.json", $config{destdir} . "/$map", to_json(\%geojson)); + } +} + +sub writekml($;$) { + my %waypoints = %{$_[0]}; + my %linestrings = %{$_[1]}; + eval q{use XML::Writer}; + error $@ if $@; + foreach my $map (keys %waypoints) { + my $output; + my $writer = XML::Writer->new( OUTPUT => \$output, + DATA_MODE => 1, ENCODING => 'UTF-8'); + $writer->xmlDecl(); + $writer->startTag("kml", "xmlns" => "http://www.opengis.net/kml/2.2"); + + # first pass: get the icons + foreach my $name (keys %{$waypoints{$map}}) { + my %options = %{$waypoints{$map}{$name}}; + $writer->startTag("Style", id => $options{tag}); + $writer->startTag("IconStyle"); + $writer->startTag("Icon"); + $writer->startTag("href"); + $writer->characters($options{icon}); + $writer->endTag(); + $writer->endTag(); + $writer->endTag(); + $writer->endTag(); + } + + foreach my $name (keys %{$waypoints{$map}}) { + my %options = %{$waypoints{$map}{$name}}; + $writer->startTag("Placemark"); + $writer->startTag("name"); + $writer->characters($name); + $writer->endTag(); + $writer->startTag("styleUrl"); + $writer->characters('#' . $options{tag}); + $writer->endTag(); + #$writer->emptyTag('atom:link', href => $options{href}); + # to make it easier for us as the atom:link parameter is + # hard to access from javascript + $writer->startTag('href'); + $writer->characters($options{href}); + $writer->endTag(); + $writer->startTag("description"); + $writer->characters($options{desc}); + $writer->endTag(); + $writer->startTag("Point"); + $writer->startTag("coordinates"); + $writer->characters($options{lon} . "," . $options{lat}); + $writer->endTag(); + $writer->endTag(); + $writer->endTag(); + } + + my $i = 0; + foreach my $linestring (@{$linestrings{$map}}) { + $writer->startTag("Placemark"); + $writer->startTag("name"); + $writer->characters("linestring " . $i++); + $writer->endTag(); + $writer->startTag("LineString"); + $writer->startTag("coordinates"); + my $str = ''; + foreach my $coord (@{$linestring}) { + $str .= join(',', @{$coord}) . " \n"; + } + $writer->characters($str); + $writer->endTag(); + $writer->endTag(); + $writer->endTag(); + } + $writer->endTag(); + $writer->end(); + + writefile("pois.kml", $config{destdir} . "/$map", $output); + } +} + +sub writecsvs($;$) { + my %waypoints = %{$_[0]}; + foreach my $map (keys %waypoints) { + my $poisf = "lat\tlon\ttitle\tdescription\ticon\ticonSize\ticonOffset\n"; + foreach my $name (keys %{$waypoints{$map}}) { + my %options = %{$waypoints{$map}{$name}}; + my $line = + $options{'lat'} . "\t" . + $options{'lon'} . "\t" . + $name . "\t" . + $options{'desc'} . '<br /><a href="' . $options{'page'} . '">' . $name . "</a>\t" . + $options{'icon'} . "\n"; + $poisf .= $line; + } + writefile("pois.txt", $config{destdir} . "/$map", $poisf); + } +} + +# pipe some data through the HTML scrubber +# +# code taken from the meta.pm plugin +sub scrub($$$) { + if (IkiWiki::Plugin::htmlscrubber->can("sanitize")) { + return IkiWiki::Plugin::htmlscrubber::sanitize( + content => shift, page => shift, destpage => shift); + } + else { + return shift; + } +} + +# taken from toggle.pm +sub format (@) { + my %params=@_; + + if ($params{content}=~m!<div[^>]*id="mapdiv-[^"]*"[^>]*>!g) { + if (! ($params{content}=~s!</body>!include_javascript($params{page})."</body>"!em)) { + # no <body> tag, probably in preview mode + $params{content}=$params{content} . include_javascript($params{page}); + } + } + return $params{content}; +} + +sub preferred_format() { + if (!defined($config{'osm_format'}) || !$config{'osm_format'}) { + $config{'osm_format'} = 'KML'; + } + my @spl = split(/, */, $config{'osm_format'}); + return shift @spl; +} + +sub get_formats() { + if (!defined($config{'osm_format'}) || !$config{'osm_format'}) { + $config{'osm_format'} = 'KML'; + } + map { $_ => 1 } split(/, */, $config{'osm_format'}); +} + +sub include_javascript ($) { + my $page=shift; + my $loader; + + if (exists $pagestate{$page}{'osm'}) { + foreach my $map (keys %{$pagestate{$page}{'osm'}}) { + foreach my $name (keys %{$pagestate{$page}{'osm'}{$map}{'displays'}}) { + $loader .= map_setup_code($map, $name, %{$pagestate{$page}{'osm'}{$map}{'displays'}{$name}}); + } + } + } + if ($loader) { + return embed_map_code($page) . "<script type=\"text/javascript\" charset=\"utf-8\">$loader</script>"; + } + else { + return ''; + } +} + +sub cgi($) { + my $cgi=shift; + + return unless defined $cgi->param('do') && + $cgi->param("do") eq "osm"; + + IkiWiki::loadindex(); + + IkiWiki::decode_cgi_utf8($cgi); + + my $map = $cgi->param('map'); + if (!defined $map || $map !~ /^[a-z]*$/) { + error("invalid map parameter"); + } + + print "Content-Type: text/html\r\n"; + print ("\r\n"); + print "<html><body>"; + print "<div id=\"mapdiv-$map\"></div>"; + print embed_map_code(); + print "<script type=\"text/javascript\" charset=\"utf-8\">"; + print map_setup_code($map, $map, + lat => "urlParams['lat']", + lon => "urlParams['lon']", + zoom => "urlParams['zoom']", + fullscreen => 1, + editable => 1, + ); + print "</script>"; + print "</body></html>"; + + exit 0; +} + +sub embed_map_code(;$) { + my $page=shift; + return '<script src="http://www.openlayers.org/api/OpenLayers.js" type="text/javascript" charset="utf-8"></script>'. + '<script src="'.urlto("ikiwiki/osm.js", $page). + '" type="text/javascript" charset="utf-8"></script>'."\n"; +} + +sub map_setup_code($;@) { + my $map=shift; + my $name=shift; + my %options=@_; + + eval q{use JSON}; + error $@ if $@; + + $options{'format'} = preferred_format(); + + my %formats = get_formats(); + if ($formats{'GeoJSON'}) { + $options{'jsonurl'} = urlto($map."/pois.json"); + } + if ($formats{'CSV'}) { + $options{'csvurl'} = urlto($map."/pois.txt"); + } + if ($formats{'KML'}) { + $options{'kmlurl'} = urlto($map."/pois.kml"); + } + + return "mapsetup('mapdiv-$name', " . to_json(\%options) . ");"; +} + +1; |