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friendica-addons/openstreetmap/openstreetmap.php

207 lines
6.9 KiB

11 years ago
<?php
/**
* Name: OpenStreetMap
* Description: Use OpenStreetMap for displaying locations. After activation the post location just beneath your avatar in your posts will link to OpenStreetMap.
* Version: 1.3.1
* Author: Fabio <http://kirgroup.com/~fabrixxm>
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* Author: Mike Macgirvin <http://macgirvin.com/profile/mike>
* Author: Klaus Weidenbach
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*
*/
use Friendica\Core\Cache;
use Friendica\Core\Config;
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function openstreetmap_install()
{
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register_hook('render_location', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_location');
register_hook('generate_map', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_generate_map');
register_hook('generate_named_map', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_generate_named_map');
register_hook('page_header', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_alterheader');
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logger("installed openstreetmap");
}
function openstreetmap_uninstall()
{
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unregister_hook('render_location', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_location');
unregister_hook('generate_map', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_generate_map');
unregister_hook('generate_named_map', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_generate_named_map');
unregister_hook('page_header', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_alterheader');
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logger("removed openstreetmap");
}
function openstreetmap_alterheader($a, &$navHtml)
{
$addScriptTag = '<script type="text/javascript" src="' . $a->get_baseurl() . '/addon/openstreetmap/openstreetmap.js"></script>' . "\r\n";
$a->page['htmlhead'] .= $addScriptTag;
}
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/**
* @brief Add link to a map for an item's set location/coordinates.
*
* If an item has coordinates add link to a tile map server, e.g. openstreetmap.org.
* If an item has a location open it with the help of OSM's Nominatim reverse geocode search.
*
* @param mixed $a
* @param array& $item
*/
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function openstreetmap_location($a, &$item) {
if(! (strlen($item['location']) || strlen($item['coord']))) {
return;
}
/*
* Get the configuration variables from the config.
* @todo Separate the tile map server from the text-string to map tile server
* since they apparently use different URL conventions.
* We use OSM's current convention of "#map=zoom/lat/lon" and optional
* ?mlat=lat&mlon=lon for markers.
*/
$tmsserver = Config::get('openstreetmap', 'tmsserver');
if(! $tmsserver) {
$tmsserver = 'http://www.openstreetmap.org';
}
$nomserver = Config::get('openstreetmap', 'nomserver');
if(! $nomserver) {
$nomserver = 'http://nominatim.openstreetmap.org/search.php';
}
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$zoom = Config::get('openstreetmap', 'zoom');
if(! $zoom) {
$zoom = 16;
}
$marker = Config::get('openstreetmap', 'marker');
if(! $marker) {
$marker = 0;
}
if ($item['coord'] != "") {
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$coords = explode(' ', $item['coord']);
if(count($coords) > 1) {
$lat = urlencode(round($coords[0], 5));
$lon = urlencode(round($coords[1], 5));
$target = $tmsserver;
if($marker > 0)
$target .= '?mlat='.$lat.'&mlon='.$lon;
$target .= '#map='.intval($zoom).'/'.$lat.'/'.$lon;
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}
}
if ($target == "") {
$target = $nomserver.'?q='.urlencode($item['location']);
}
if ($item['location'] != "") {
$title = $item['location'];
} else {
$title = $item['coord'];
}
$item['html'] = '<a target="map" title="'.$title.'" href= "'.$target.'">'.$title.'</a>';
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}
function openstreetmap_generate_named_map(&$a, &$b)
{
$nomserver = Config::get('openstreetmap', 'nomserver');
if(! $nomserver)
$nomserver = 'http://nominatim.openstreetmap.org/search.php';
$args = '?q=' . urlencode($b['location']) . '&format=json';
$x = z_fetch_url($nomserver . $args);
if($x['success']) {
$j = json_decode($x['body'],true);
if($j && is_array($j) && $j[0]['lat'] && $j[0]['lon']) {
$arr = array('lat' => $j[0]['lat'],'lon' => $j[0]['lon'],'location' => $b['location'], 'html' => '');
openstreetmap_generate_map($a,$arr);
$b['html'] = $arr['html'];
}
}
}
function openstreetmap_generate_map(&$a, &$b)
{
$tmsserver = Config::get('openstreetmap', 'tmsserver');
if(! $tmsserver) {
$tmsserver = 'http://www.openstreetmap.org';
}
if(strpos(z_root(),'https:') !== false) {
$tmsserver = str_replace('http:','https:',$tmsserver);
}
$zoom = Config::get('openstreetmap', 'zoom');
if(! $zoom) {
$zoom = 16;
}
$marker = Config::get('openstreetmap', 'marker');
if(! $marker) {
$marker = 0;
}
$lat = $b['lat']; // round($b['lat'], 5);
$lon = $b['lon']; // round($b['lon'], 5);
logger('lat: ' . $lat, LOGGER_DATA);
logger('lon: ' . $lon, LOGGER_DATA);
$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) ;
$b['html'] .= '&amp;layer=mapnik&amp;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>';
logger('generate_map: ' . $b['html'], LOGGER_DATA);
}
function openstreetmap_plugin_admin(&$a, &$o)
{
$t = get_markup_template("admin.tpl", "addon/openstreetmap/");
$tmsserver = Config::get('openstreetmap', 'tmsserver');
if(! $tmsserver) {
$tmsserver = 'http://www.openstreetmap.org';
}
$nomserver = Config::get('openstreetmap', 'nomserver');
if(! $nomserver) {
$nomserver = 'http://nominatim.openstreetmap.org/search.php';
}
$zoom = Config::get('openstreetmap', 'zoom');
if(! $zoom) {
$zoom = 16;
}
$marker = Config::get('openstreetmap', 'marker');
if(! $marker) {
$marker = 0;
}
$o = replace_macros($t, array(
'$submit' => t('Submit'),
'$tmsserver' => array('tmsserver', t('Tile Server URL'), $tmsserver, t('A list of <a href="http://wiki.openstreetmap.org/wiki/TMS" target="_blank">public tile servers</a>')),
'$nomserver' => array('nomserver', t('Nominatim (reverse geocoding) Server URL'), $nomserver, t('A list of <a href="http://wiki.openstreetmap.org/wiki/Nominatim" target="_blank">Nominatim servers</a>')),
'$zoom' => array('zoom', t('Default zoom'), $zoom, t('The default zoom level. (1:world, 18:highest, also depends on tile server)')),
'$marker' => array('marker', t('Include marker on map'), $marker, t('Include a marker on the map.')),
));
}
function openstreetmap_plugin_admin_post(&$a)
{
$urltms = ((x($_POST, 'tmsserver')) ? notags(trim($_POST['tmsserver'])) : '');
$urlnom = ((x($_POST, 'nomserver')) ? notags(trim($_POST['nomserver'])) : '');
$zoom = ((x($_POST, 'zoom')) ? intval(trim($_POST['zoom'])) : '16');
$marker = ((x($_POST, 'marker')) ? intval(trim($_POST['marker'])) : '0');
Config::set('openstreetmap', 'tmsserver', $urltms);
Config::set('openstreetmap', 'nomserver', $urlnom);
Config::set('openstreetmap', 'zoom', $zoom);
Config::set('openstreetmap', 'marker', $marker);
info( t('Settings updated.') . EOL);
}