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186 lines
7 KiB
PHP
186 lines
7 KiB
PHP
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<?php
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/**
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* Name: OpenStreetMap
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* Description: Use OpenStreetMap for displaying locations. After activation the post location just beneath your avatar in your posts will link to OpenStreetMap.
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* Version: 1.3
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* Author: Mike Macgirvin <http://macgirvin.com/profile/mike>
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* Author: Klaus Weidenbach
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*
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*/
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function openstreetmap_load() {
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register_hook('render_location', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_location');
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register_hook('generate_map', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_generate_map');
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register_hook('generate_named_map', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_generate_named_map');
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register_hook('page_header', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_alterheader');
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logger("installed openstreetmap");
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}
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function openstreetmap_unload() {
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unregister_hook('render_location', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_location');
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unregister_hook('generate_map', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_generate_map');
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unregister_hook('generate_named_map', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_generate_named_map');
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unregister_hook('page_header', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_alterheader');
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logger("removed openstreetmap");
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}
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function openstreetmap_alterheader($a, &$navHtml) {
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$addScriptTag = '<script type="text/javascript" src="' . $a->get_baseurl() . '/addon/openstreetmap/openstreetmap.js"></script>' . "\r\n";
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$a->page['htmlhead'] .= $addScriptTag;
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}
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/**
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* @brief Add link to a map for an item's set location/coordinates.
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*
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* If an item has coordinates add link to a tile map server, e.g. openstreetmap.org.
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* If an item has a location open it with the help of OSM's Nominatim reverse geocode search.
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*
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* @param mixed $a
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* @param array& $item
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*/
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function openstreetmap_location($a, &$item) {
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if(! (strlen($item['location']) || strlen($item['coord'])))
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return;
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/*
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* Get the configuration variables from the config.
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* @todo Separate the tile map server from the text-string to map tile server
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* since they apparently use different URL conventions.
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* We use OSM's current convention of "#map=zoom/lat/lon" and optional
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* ?mlat=lat&mlon=lon for markers.
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*/
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$tmsserver = get_config('openstreetmap', 'tmsserver');
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if(! $tmsserver)
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$tmsserver = 'http://www.openstreetmap.org';
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$nomserver = get_config('openstreetmap', 'nomserver');
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if(! $nomserver)
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$nomserver = 'http://nominatim.openstreetmap.org/search.php';
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$zoom = get_config('openstreetmap', 'zoom');
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if(! $zoom)
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$zoom = 16;
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$marker = get_config('openstreetmap', 'marker');
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if(! $marker)
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$marker = 0;
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$location = '';
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$coord = '';
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$location = $item['location'];
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$location = (($location && (! $item['coord'])) ? '<a target="map" title="' . $item['location'] . '" href="'.$nomserver . '?q=' . urlencode($item['location']) . '">' . $item['location'] . '</a>' : $location);
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if($item['coord']) {
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$coords = explode(' ', $item['coord']);
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if(count($coords) > 1) {
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$lat = urlencode(round($coords[0], 5));
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$lon = urlencode(round($coords[1], 5));
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$coord = '<a target="map" class="OSMMapLink" title="' . $item['coord'] . '" href="'. $tmsserver;
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if($marker > 0)
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$coord .= '?mlat=' . $lat . '&mlon=' . $lon;
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$coord .= '#map=' . intval($zoom) . '/' . $lat . '/' . $lon .'">Map</a>';
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}
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}
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if(strlen($coord)) {
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if($location)
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$location .= ' <span class="smalltext">(' . $coord . ')</span>';
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else
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$location = '<span class="smalltext">' . $coord . '</span>';
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}
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$item['html'] = $location;
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}
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function openstreetmap_generate_named_map(&$a,&$b) {
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$nomserver = get_config('openstreetmap', 'nomserver');
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if(! $nomserver)
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$nomserver = 'http://nominatim.openstreetmap.org/search.php';
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$args = '?q=' . urlencode($b['location']) . '&format=json';
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$x = z_fetch_url($nomserver . $args);
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if($x['success']) {
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$j = json_decode($x['body'],true);
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if($j && is_array($j) && $j[0]['lat'] && $j[0]['lon']) {
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$arr = array('lat' => $j[0]['lat'],'lon' => $j[0]['lon'],'location' => $b['location'], 'html' => '');
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openstreetmap_generate_map($a,$arr);
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$b['html'] = $arr['html'];
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}
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}
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}
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function openstreetmap_generate_map(&$a,&$b) {
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$tmsserver = get_config('openstreetmap', 'tmsserver');
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if(! $tmsserver)
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$tmsserver = 'http://www.openstreetmap.org';
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if(strpos(z_root(),'https:') !== false)
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$tmsserver = str_replace('http:','https:',$tmsserver);
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$zoom = get_config('openstreetmap', 'zoom');
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if(! $zoom)
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$zoom = 16;
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$marker = get_config('openstreetmap', 'marker');
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if(! $marker)
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$marker = 0;
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$lat = $b['lat']; // round($b['lat'], 5);
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$lon = $b['lon']; // round($b['lon'], 5);
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logger('lat: ' . $lat, LOGGER_DATA);
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logger('lon: ' . $lon, LOGGER_DATA);
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$b['html'] = '<iframe style="width:100%; height:300px; border:1px solid #ccc" src="' . $tmsserver . '/export/embed.html?bbox=' . ($lon - 0.01) . '%2C' . ($lat - 0.01) . '%2C' . ($lon + 0.01) . '%2C' . ($lat + 0.01) ;
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$b['html'] .= '&layer=mapnik&marker=' . $lat . '%2C' . $lon . '" style="border: 1px solid black"></iframe><br/><small><a href="' . $tmsserver . '/?mlat=' . $lat . '&mlon=' . $lon . '#map=16/' . $lat . '/' . $lon . '">' . (($b['location']) ? escape_tags($b['location']) : t('View Larger')) . '</a></small>';
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logger('generate_map: ' . $b['html'], LOGGER_DATA);
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}
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function openstreetmap_plugin_admin(&$a, &$o) {
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$t = get_markup_template("admin.tpl", "addon/openstreetmap/");
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$tmsserver = get_config('openstreetmap', 'tmsserver');
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if(! $tmsserver)
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$tmsserver = 'http://www.openstreetmap.org';
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$nomserver = get_config('openstreetmap', 'nomserver');
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if(! $nomserver)
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$nomserver = 'http://nominatim.openstreetmap.org/search.php';
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$zoom = get_config('openstreetmap', 'zoom');
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if(! $zoom)
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$zoom = 16;
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$marker = get_config('openstreetmap', 'marker');
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if(! $marker)
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$marker = 0;
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$o = replace_macros($t, array(
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'$submit' => t('Submit'),
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'$tmsserver' => array('tmsserver', t('Tile Server URL'), $tmsserver, t('A list of <a href="http://wiki.openstreetmap.org/wiki/TMS" target="_blank">public tile servers</a>')),
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'$nomserver' => array('nomserver', t('Nominatim (reverse geocoding) Server URL'), $nomserver, t('A list of <a href="http://wiki.openstreetmap.org/wiki/Nominatim" target="_blank">Nominatim servers</a>')),
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'$zoom' => array('zoom', t('Default zoom'), $zoom, t('The default zoom level. (1:world, 18:highest, also depends on tile server)')),
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'$marker' => array('marker', t('Include marker on map'), $marker, t('Include a marker on the map.')),
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));
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}
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function openstreetmap_plugin_admin_post(&$a) {
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$urltms = ((x($_POST, 'tmsserver')) ? notags(trim($_POST['tmsserver'])) : '');
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$urlnom = ((x($_POST, 'nomserver')) ? notags(trim($_POST['nomserver'])) : '');
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$zoom = ((x($_POST, 'zoom')) ? intval(trim($_POST['zoom'])) : '16');
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$marker = ((x($_POST, 'marker')) ? intval(trim($_POST['marker'])) : '0');
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set_config('openstreetmap', 'tmsserver', $urltms);
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set_config('openstreetmap', 'nomserver', $urlnom);
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set_config('openstreetmap', 'zoom', $zoom);
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set_config('openstreetmap', 'marker', $marker);
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info( t('Settings updated.') . EOL);
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}
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