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NWS-forecast-map.php
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NWS-forecast-map.php
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<?php
#################################################################################
#
# NWS Weather Forecast with Leaflet Map
#
# This program is based on WxForecastMap.php by Curly of ricksturf.com, and has
# been completely rewritten to use Leaflet/OpenStreetMaps and api.weather.gov
# for the data (instead of Google map/forecast.weather.gov/MapClick.php XML)
# by Ken True - webmaster@saratoga-weather.org
#
# NWS-forecast-map.php - 18-May-2019 - initial release
#
# Version 2.00 - 18-May-2019 - initial release
# Version 2.10 - 19-May-2019 - added display of County Zone alerts and map polygons (where provided)
# Version 2.20 - 14-Jul-2020 - switched to geo+json from ld+json calls to api.weather.gov
#
#################################################################################
# error_reporting(E_ALL); // uncomment to turn on full error reporting
#
# script available at http://saratoga-weather.org/scripts.php
#
# you may copy/modify/use this script as you see fit,
# no warranty is expressed or implied.
# Usage:
# you can use this webpage standalone (customize the HTML portion below)
# or you can include it in an existing page:
/*
<?php
$doInclude = true;
include("NWS-forecast-map.php");
?>
*/
#
# settings: --------------------------------------------------------------------
# if you are using www.mapbox.com for map tiles, you
# need to acquire an API ke from that service
#
# put this in the CALLING page for NWS-forecast-map.php script:
/*
$setMapboxAPIkey = '-replace-this-with-your-API-key-here-';
*/
# Note: if using the Saratoga template set, put a new entry in Settings.php
/*
$SITE['mapboxAPIkey'] = '-replace-this-with-your-API-key-here-';
*/
# and you won't need to change the $mapAPI value above (nor any of the other
# settings in the script below.
#
# change myLat, myLong to your station latitude/longitude,
# set $ourTZ to your time zone
# other settings are optional
#
# set to station latitude/longitude (decimal degrees)
$myLat = 37.2747; //North=positive, South=negative decimal degrees
$myLong = -122.0229; //East=positive, West=negative decimal degrees
# The above settings are for saratoga-weather.org location
$ourTZ = "America/Los_Angeles"; //NOTE: this *MUST* be set correctly to
# translate UTC times to your LOCAL time for the displays.
# Use https://www.php.net/manual/en/timezones.php to find the timezone suitable for
# your location.
#
# pick a format for the time to display ..uncomment one (or make your own)
# $timeFormat = 'D, Y-m-d H:i:s T'; // Fri, 2006-03-31 14:03:22 TZone
# $timeFormat = 'D, d-M-Y g:i:s a T'; // Fri, 31-Mar-2006 4:03:22 am TZone
$timeFormat = 'g:i a T M d, Y'; // 10:30 am CDT March 31, 2018
# see: http://leaflet-extras.github.io/leaflet-providers/preview/ for additional maps
# select ONE map tile provider by uncommenting the values below.
$mapProvider = 'Esri_WorldTopoMap'; // ESRI topo map - no key needed
#$mapProvider = 'OSM'; // OpenStreetMap - no key needed
#$mapProvider = 'Terrain'; // Terrain map by stamen.com - no key needed
#$mapProvider = 'OpenTopo'; // OpenTopoMap.com - no key needed
#$mapProvider = 'Wikimedia'; // Wikimedia map - no key needed
#
#$mapProvider = 'MapboxSat'; // Maps by Mapbox.com - API KEY needed in $mapboxAPIkey
#$mapProvider = 'MapboxTer'; // Maps by Mapbox.com - API KEY needed in $mapboxAPIkey
$mapboxAPIkey = '--mapbox-API-key--';
# use this for the API key to MapBox
$mapZoomDefault = 11; // =11; default Leaflet Map zoom entry for display (1=world, 14=street)
# end of settings -------------------------------------------------------------
if (isset($_REQUEST['sce']) && strtolower($_REQUEST['sce']) == 'view' ) {
//--self downloader --
$filenameReal = __FILE__;
$download_size = filesize($filenameReal);
header('Pragma: public');
header('Cache-Control: private');
header('Cache-Control: no-cache, must-revalidate');
header("Content-type: text/plain;charset=ISO-8859-1");
header("Accept-Ranges: bytes");
header("Content-Length: $download_size");
header('Connection: close');
readfile($filenameReal);
exit;
}
// overrides from Settings.php if available
// if(file_exists("Settings.php")) {include_once("Settings.php");}
//if(file_exists("common.php")) {include_once("common.php");}
global $SITE;
if (isset($SITE['latitude'])) {$myLat = $SITE['latitude'];}
if (isset($SITE['longitude'])) {$myLong = $SITE['longitude'];}
if (isset($SITE['cityname'])) {$ourLocationName = $SITE['cityname'];}
if (isset($SITE['tz'])) {$ourTZ = $SITE['tz']; }
if (isset($SITE['timeFormat'])) {$timeFormat = $SITE['timeFormat'];}
if (isset($SITE['mapboxAPIkey'])) {$mapboxAPIkey = $SITE['mapboxAPIkey']; }
// end of overrides from Settings.php
// overrides from including page if any
if (isset($setMapZoomDefault)) { $mapZoomDefault = $setMapZoomDefault; }
if (isset($setDoLinkTarget)) { $doLinkTarget = $setDoLinkTarget; }
if (isset($setLatitude)) { $myLat = $setLatitude; }
if (isset($setLongitude)) { $myLong = $setLongitude; }
if (isset($setLocationName)) { $ourLocationName = $setLocationName; }
if (isset($setTimeZone)) { $ourTZ = $setTimeZone; }
if (isset($setTimeFormat)) { $timeFormat = $setTimeFormat; }
if (isset($setMapProvider)) { $mapProvider = $setMapProvider; }
if (isset($setMapboxAPIkey)) { $mapboxAPIkey = $setMapboxAPIkey; }
// ------ start of code -------
define('NWS_DETAIL_PRODUCT_URL','https://alerts-v2.weather.gov/#/?id='); // api site still beta // Jasiu fix 10-May-2020
if(!isset($mapboxAPIkey)) {
$mapboxAPIkey = '--mapbox-API-key--';
}
$includeMode = (isset($doInclude) and $doInclude)?true:false;
# table of available map tile providers
$mapTileProviders = array(
'OSM' => array(
'name' => 'Street',
'URL' =>'https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
'attrib' => '© <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors, Points © 2012 LINZ',
'maxzoom' => 18
),
'Wikimedia' => array(
'name' => 'Street2',
'URL' =>'https://maps.wikimedia.org/osm-intl/{z}/{x}/{y}.png',
'attrib' => '<a href="https://wikimediafoundation.org/wiki/Maps_Terms_of_Use">Wikimedia</a>',
'maxzoom' => 18
),
'Esri_WorldTopoMap' => array(
'name' => 'Terrain',
'URL' => 'https://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer/tile/{z}/{y}/{x}',
'attrib' => 'Tiles © <a href="https://www.esri.com/en-us/home" title="Sources: Esri, DeLorme, NAVTEQ, TomTom, Intermap, iPC, USGS, FAO, NPS, NRCAN, GeoBase, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), and the GIS User Community">Esri</a>',
'maxzoom' => 18
),
'Terrain' => array(
'name' => 'Terrain2',
'URL' =>'http://{s}.tile.stamen.com/terrain/{z}/{x}/{y}.jpg',
'attrib' => '<a href="https://creativecommons.org/licenses/by/3.0">CC BY 3.0</a> <a href="https://stamen.com">Stamen.com</a> | Data © <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors.',
'maxzoom' => 14
),
'OpenTopo' => array(
'name' => 'Topo',
'URL' =>'https://{s}.tile.opentopomap.org/{z}/{x}/{y}.png',
'attrib' => ' © <a href="https://opentopomap.org/">OpenTopoMap</a> (<a href="https://creativecommons.org/licenses/by-sa/3.0/">CC-BY-SA</a>) | Data © <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors.',
'maxzoom' => 15
),
'MapboxTer' => array(
'name' => 'Terrain3',
'URL' =>'https://api.mapbox.com/styles/v1/mapbox/outdoors-v10/tiles/256/{z}/{x}/{y}?access_token='.
$mapboxAPIkey,
'attrib' => '© <a href="https://mapbox.com">MapBox.com</a> | Data © <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors.',
'maxzoom' => 18
),
'MapboxSat' => array(
'name' => 'Satellite',
'URL' =>'https://api.mapbox.com/styles/v1/mapbox/satellite-streets-v10/tiles/256/{z}/{x}/{y}?access_token='.
$mapboxAPIkey,
'attrib' => '© <a href="https://mapbox.com">MapBox.com</a> | Data © <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors.',
'maxzoom' => 18
),
);
if(!$includeMode) { // emit only if full page is generated
?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<meta name="viewport" content="initial-scale=1.0" />
<link rel="stylesheet" href="NWS-forecast-map.css" />
<title>NWS Forecast Map</title>
<style type="text/css">
<!--
body,td,th {
font-family: Arial, Helvetica, sans-serif;
font-size: 12px;
}
.graytitles {
font-size:large;
text-align:center;
margin-top: 5px;
}
-->
</style>
</head>
<body>
<?php } // end !$includeMode ?>
<div>
<p> </p>
<script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.5.1/leaflet.js" type="text/javascript"></script>
<?php
$centerlat = $myLat;
$centerlong= $myLong;
$zoom = $mapZoomDefault;
global $Status;
$errorMessage = '';
$Status = "<!-- NWS-forecast-map.php - V2.20 - 16-Jul-2020 -->\n";
if(isset($_REQUEST['zoom']) and is_numeric($_REQUEST['zoom'])) {
$zoom = $_REQUEST['zoom'];
}
if(isset($_REQUEST['llc'])) {
list($centerlat,$centerlong) = explode(',',$_REQUEST['llc']);
}
if(isset($_REQUEST['map'])) {
$reqMap = $_REQUEST['map'];
}
$doDebug = isset($_REQUEST['debug'])?true:false;
# for easy testing (part 1)
if(isset($_REQUEST['latlong'])) {
$t = $_REQUEST['latlong'];
if(preg_match('!^([\d\.]+),-([\d\.]+)$!',$t,$m)) {
$centerlat = $m[1];
$centerlong= $m[2];
$centerlong= 0.0-$centerlong;
$Status .= "<!-- using latlong=$centerlat,$centerlong -->\n";
}
}
# for easy testing (part 2)
if(isset($_REQUEST['lat']) and is_numeric($_REQUEST['lat']) and
isset($_REQUEST['lon']) and is_numeric($_REQUEST['lon']) ) {
$centerlat = $_REQUEST['lat'];
$centerlong= $_REQUEST['lon'];
$Status .= "<!-- using lat=$centerlat and long=$centerlong -->\n";
}
$pointHTML = WXmap_fetchUrlWithoutHanging('https://api.weather.gov/points/'.$centerlat.','.$centerlong);
$long = round($centerlong,4);
$lat = round($centerlat,4);
$stuff = explode("\r\n\r\n",$pointHTML); // maybe we have more than one header due to redirects.
$content = (string)array_pop($stuff); // last one is the content
$headers = (string)array_pop($stuff); // next-to-last-one is the headers
preg_match('/HTTP\/\S+ (\d+)/', $headers, $m);
//$Status .= "<!-- m=".print_r($m,true)." -->\n";
//$Status .= "<!-- html=".print_r($html,true)." -->\n";
if(isset($m[1])) {$lastRC = (string)$m[1];} else {$lastRC = '0';}
if($lastRC == '200') { // got a good return .. process
$rawpointJSON = json_decode($content,true);
$pointJSON = $rawpointJSON['properties'];
if($doDebug) {$Status .= "<!-- Point content\n".var_export($pointJSON,true)." -->\n";}
$fcstURL = $pointJSON['forecast'];
$fcstZoneURL = $pointJSON['forecastZone'];
$countyZoneURL = $pointJSON['county'];
$cityname = $pointJSON['relativeLocation']['properties']['city'];
$statename= $pointJSON['relativeLocation']['properties']['state'];
$TZ = $pointJSON['timeZone'];
date_default_timezone_set($TZ);
$distanceFrom = '';
if (isset($pointJSON['relativeLocation']['properties']['distance']['value'])) {
$distance = $pointJSON['relativeLocation']['properties']['distance']['value'];
$distance = floor(0.000621371 * $distance); // truncate to nearest whole mile
$Status.= "<!-- distance=$distance from " . $cityname . " -->\n";
if ($distance >= 2) {
$angle = $pointJSON['relativeLocation']['properties']['bearing']['value'];
$compass = array('N','NNE','NE','ENE','E','ESE','SE','SSE','S','SSW','SW','WSW','W','WNW','NW','NNW');
$direction = $compass[round($angle / 22.5) % 16];
$t = $distance . ' ';
$t.= ($distance > 1) ? "Miles" : "Mile";
$t.= " $direction ";
$distanceFrom = $t. ' from ';
}
}
$Status .= "<!-- fcstURL='$fcstURL' -->\n";
} else { //not a good return
$errorMessage .= "<h2>Oops... unable to fetch the point forecast data RC=$lastRC.<br/>" .
"Please try again later</h2>";
$distanceFrom = '';
$cityname = 'n/a';
$statename = 'n/a';
$updateTime= 'n/a';
$lat=$centerlat;
$long=$centerlong;
}
// now get the actual forecast from the gridpoint URL
if(isset($fcstURL)) { // try only if the gridpoint URL was found
$gridpointHTML = WXmap_fetchUrlWithoutHanging($fcstURL);
$stuff = explode("\r\n\r\n",$gridpointHTML); // maybe we have more than one header due to redirects.
$content = (string)array_pop($stuff); // last one is the content
$headers = (string)array_pop($stuff); // next-to-last-one is the headers
preg_match('/HTTP\/\S+ (\d+)/', $headers, $m);
//$Status .= "<!-- m=".print_r($m,true)." -->\n";
//$Status .= "<!-- html=".print_r($html,true)." -->\n";
if(isset($m[1])) {$lastRC = (string)$m[1]; } else { $lastRC = '0'; }
if($lastRC == '200') {
$rawgridpointJSON = json_decode($content,true);
$gridpointJSON = $rawgridpointJSON['properties'];
if($doDebug) {$Status .= "<!-- gridpoint content\n".var_export($gridpointJSON,true)." -->\n";}
$updateTime = date($timeFormat,strtotime($gridpointJSON["updateTime"]));
/* ld+json extract
if(isset($gridpointJSON['geometry'])) {
$g = $gridpointJSON['geometry'];
# "geometry": "GEOMETRYCOLLECTION(POINT(-122.0220167 37.2668315),POLYGON((-122.0385572 37.275548,-122.0330058 37.2536879,-122.005479 37.2581132,-122.011025 37.2799738,-122.0385572 37.275548)))",
if(preg_match('|POINT\(([^\)]+)\)|i',$g,$m)) {
list($long,$lat) = explode(' ',$m[1]);
$long = round($long,4);
$lat = round($lat,4);
$centerlat = $lat;
$centerlong = $long;
}
if(preg_match('|POLYGON\(\(([^\)]+)\)\)|i',$g,$m)) {
$poly = explode(',',$m[1]);
}
*/
}
$poly = array();
if(isset($rawgridpointJSON['geometry']['coordinates'][0])) {
if($doDebug) {$Status .= "<!-- gridpoint geometry\n".var_export($rawgridpointJSON['geometry']['coordinates'][0],true)." -->\n";}
foreach ($rawgridpointJSON['geometry']['coordinates'][0] as $i => $coords) {
$poly[] = $coords[0].' '.$coords[1];
}
if($doDebug) {$Status .= "<!-- lat=$lat long=$long poly=".var_export($poly,true)." -->\n"; }
} else {
$errorMessage .= "<h2>Oops... unable to fetch the gridpoint forecast data RC=$lastRC.<br/>" .
"Please try again later</h2>";
$updateTime= 'n/a';
$lat=$centerlat;
$long=$centerlong;
}
}
list($alertsList,$alertsJS) = WXmap_get_alerts($countyZoneURL);
if(!isset($zoom)) {$zoom = 11;}
print $Status;
?>
<div style="width:621px; margin:0px auto 0px auto;">
<table cellspacing="0" cellpadding="0"
style="width:100%; margin:0px auto 0px auto; border:1px solid black; background-color:#F5F8FE">
<tr>
<td style="text-align:center; padding:5px 0px 5px 0px">Land forecasts for the United States from the National Weather Service</td>
</tr>
</table>
<p> </p>
<table width="611" cellspacing="3" cellpadding="3" style="color:black; line-height:1.2em; margin: 0px auto 0px auto; border:solid 4px #006699; background-color:#FFF">
<tr>
<td colspan="3">
<div style="margin: 6px auto 0px auto; text-align:center; width:570px; height:360px; border: outset #777 3px;" id="map_canvas">
<noscript>
<p><span style="font-size:14px;">Your JavaScript is disabled and preventing the map to load for you.</span></p>
<p>Enable your JavaScript in your browser to view the map and select a forecast for any US location.</p>
</noscript>
<?php echo $errorMessage; ?>
</div>
<div style="text-align:center; font-size:12px;margin-top: 5px;">
<span style="color:#009900;font-size:large;font-weight:bolder;">☐ </span> Green box outlines the forecast area</div>
</td>
</tr>
<tr>
<td style="font-size:12px; padding-left:16px; color:#030">Zoom or drag the map for a precise location<br />Double-click the location for the latest forecast.</td>
<td style="width:32%; text-align:left; font-size:10px">LAT: <span id="latspan"><?php echo $lat; ?></span><br />LON: <span id="lngspan"><?php echo $long;?></span></td>
<td style="float:right">
<form action="" method="get">
<div>
<input type="hidden" id="latlongclicked" name="llc" />
<input type="hidden" id="currentzoom" name="zoom" />
<input type="hidden" id="currentmap" name="map" />
<input style="visibility:hidden;" id="theSubmitButton" type="submit" value=""/>
</div>
</form>
</td>
</tr>
<tr>
<td colspan="3" style="padding: 2px 10px 2px 10px"><hr /></td>
</tr>
<tr>
<td colspan="3" style="text-align:center; font-size: 1.5em;"><b><?php echo "$distanceFrom$cityname, $statename"; ?></b></td>
</tr>
<tr>
<td colspan="3" style="padding-bottom: 6px; text-align:center; font-size: 0.8em">Updated <?php echo $updateTime;?></td>
</tr>
</table>
<?php if(!empty($alertsList)) { // show the alerts box ?>
<table border="0" width="622" style="margin:5px auto 0px auto;border: thick solid red; background-color: #FF9;">
<tr>
<td class="alertbox" style="text-align: center;">
<?php echo $alertsList; ?>
</td>
</tr>
</table>
<?php } // end alert summary display ?>
<?php
// Generate the detailed forecasts from the gridpoint info:
/*
{
"number": 1,
"name": "Today",
"startTime": "2019-05-16T10:00:00-07:00",
"endTime": "2019-05-16T18:00:00-07:00",
"isDaytime": true,
"temperature": 62,
"temperatureUnit": "F",
"temperatureTrend": null,
"windSpeed": "10 to 15 mph",
"windDirection": "WSW",
"icon": "https://api.weather.gov/icons/land/day/tsra,50/tsra,60?size=medium",
"shortForecast": "Showers And Thunderstorms Likely",
"detailedForecast": "Showers and thunderstorms likely. Mostly cloudy, with a high near 62. West southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible."
},
*/
$dayStyle = 'vertical-align: top; border:solid 4px #006699; width: 311px; background-color:#FFFEE8; padding-bottom: 10px';
$nightStyle = 'vertical-align: top; border:solid 4px #006699; width: 311px; background-color:#F2F2F2; padding-bottom: 10px;';
if(isset($gridpointJSON['periods'][0])) { // only generate if we have data
for ($i=0;$i<count($gridpointJSON['periods']);$i=$i+2) {
$Pa = $gridpointJSON['periods'][$i];
$Pb = $gridpointJSON['periods'][$i+1];
?>
<table border="0" width="622" style="margin:0px auto 0px auto;">
<tr>
<td class="graybox" style="width: 311px;">
<div class="graytitles"><?php echo $Pa['name']; ?></div>
</td>
<td> </td>
<td class="graybox" style="width: 311px;">
<div class="graytitles"><?php echo $Pb['name']; ?></div>
</td>
</tr>
<tr>
<?php if($Pa['isDaytime']) {
// Daytime:
$color = '#800';
$loworhigh = 'HIGH';
$tdStyle = $dayStyle;
} else {
// nighttime
$tdStyle = $nightStyle;
$loworhigh = 'LOW';
$color = '#008';
}?>
<td style="<?php echo $tdStyle; ?>">
<div style="text-align: center; font-size:110%; padding: 6px 0px 16px 0px;"><i>"<?php echo $Pa['shortForecast']; ?>"</i></div>
<div style="vertical-align: top; padding: 0px 8px 0px 8px; text-align: justify">
<img style="float: left; border-style: none; padding-right: 8px" src="<?php echo $Pa['icon']; ?>" height="86" width="86"
alt="<?php echo $Pa['shortForecast']; ?>" title="<?php echo $Pa['detailedForecast']; ?>"/>
<div>
<span style="color:<?php echo $color;?>;"><?php echo $loworhigh; ?> </span><span style="color:<?php echo $color;?>; font-size:1.5em;">
<b><?php echo $Pa['temperature'];?>°</b>
</span>
</div>
<span style="font-size:.9em"><?php echo $Pa['detailedForecast']; ?></span>
</div>
</td>
<td> </td>
<?php if($Pb['isDaytime']) {
// Daytime:
$color = '#800';
$loworhigh = 'HIGH';
$tdStyle = $dayStyle;
} else {
// nighttime
$tdStyle = $nightStyle;
$loworhigh = 'LOW';
$color = '#008';
}?>
<td style="<?php echo $tdStyle; ?>">
<div style="text-align: center; font-size:110%; padding: 6px 0px 16px 0px;"><i>"<?php echo $Pb['shortForecast']; ?>"</i></div>
<div style="vertical-align: top; padding: 0px 8px 0px 8px; text-align: justify">
<img style="float: left; border-style: none; padding-right: 8px" src="<?php echo $Pb['icon']; ?>" height="86" width="86"
alt="<?php echo $Pb['shortForecast']; ?>" title="<?php echo $Pb['detailedForecast']; ?>"/>
<div>
<span style="color:<?php echo $color;?>;"><?php echo $loworhigh; ?> </span><span style="color:<?php echo $color;?>; font-size:1.5em;">
<b><?php echo $Pb['temperature'];?>°</b>
</span>
</div>
<span style="font-size:.9em"><?php echo $Pb['detailedForecast']; ?></span>
</div>
</td>
</tr>
</table>
<?php
} // end of loop to print
?>
<script type="text/javascript">
// <![CDATA[
<?php
print '// Leaflet/OpenStreetMap+other tile providers MAP production code
';
// Generate map options
$mOpts = array();
$mList = '';
$mFirstMap = '';
$mFirstMapName = '';
$mSelMap = '';
$mSelMapName = '';
$swxAttrib = ' | Script by <a href="https://saratoga-weather.org/">Saratoga-weather.org</a>';
$mScheme = $_SERVER['SERVER_PORT']==443?'https':'http';
foreach ($mapTileProviders as $n => $M ) {
$name = $M['name'];
$vname = 'M'.strtolower($name);
if(empty($mFirstMap)) {$mFirstMap = $vname; $mFirstMapName = $name;} // default map is first in list
if(strpos($n,'Mapbox') !== false and
strpos($mapboxAPIkey,'-API-key-') !== false) {
$mList .= "\n".'// skipping Mapbox - '.$name.' since $mapboxAPIkey is not set'."\n\n";
continue;
}
if($mScheme == 'https' and parse_url($M['URL'],PHP_URL_SCHEME) == 'http') {
$mList .= "\n".'// skipping '.$name.' due to http only map tile link while our page is https'."\n\n";
continue;
}
if($mapProvider == $n) {$mSelMap = $vname; $mSelMapName = $name;}
$mList .= 'var '.$vname.' = L.tileLayer(\''.$M['URL'].'\', {
maxZoom: '.$M['maxzoom'].',
attribution: \''.$M['attrib'].$swxAttrib.'\',
mapname: "'.$name.'"
});
';
$mOpts[$name] = $vname;
}
print "// Map tile providers:\n";
print $mList;
print "// end of map tile providers\n\n";
print "var baseLayers = {\n";
$mtemp = '';
foreach ($mOpts as $n => $v) {
$mtemp .= ' "'.$n.'": '.$v.",\n";
}
$mtemp = substr($mtemp,0,strlen($mtemp)-2)."\n";
print $mtemp;
print "}; \n";
if(empty($mSelMap)) {$mSelMap = $mFirstMap; $mSelMapName = $mFirstMapName;}
if(isset($reqMap) and isset($mOpts[$reqMap])) {
$mSelMap = $mOpts[$reqMap];
$mSelMapName = $reqMap;
}
// end Generate map tile options
?>
var map = L.map('map_canvas', {
center: new L.latLng([<?php echo $centerlat;?>,<?php echo $centerlong;?>]),
zoom: <?php echo $zoom; ?>,
layers: [<?php echo $mSelMap; ?>],
doubleClickZoom: false,
scrollWheelZoom: false
});
var selMap = '<?php echo $mSelMapName; ?>';
// console.log('initial selMap='+selMap);
L.control.scale().addTo(map);
L.control.layers(baseLayers).addTo(map);
// draw the gridpoint forecast area as a polygon
var polyfa = [
<?php
foreach ($poly as $i => $coords) {
list($longP,$latP) = explode(' ',$coords);
print " [$latP,$longP],\n";
}
?>
];
var mapolyfa = new L.polygon(polyfa,{
opacity: 1.0,
color: "#009900",
strokeOpacity: 0.9,
weight: 2.5,
fillColor: "#7FF378",
fillOpacity: 0.20,
title: "Forecast Area"
}).addTo(map);
mapolyfa.bindTooltip("Forecast Area for <?php echo "$distanceFrom$cityname"; ?>",
{ sticky: true,
direction: "auto"
});
<?php if(!empty($alertsJS)) { print $alertsJS; } ?>
// display mouse lat/long in page as mouse moves
function mouseMove (e) {
document.getElementById('latspan').innerHTML = e.latlng.lat.toFixed(4)
document.getElementById('lngspan').innerHTML = e.latlng.lng.toFixed(4)
}
map.on('mousemove',mouseMove);
// do 'submit' with mouse lat/long+current zoom as args
function mouseDoubleClicked (e) {
document.getElementById('latlongclicked').value = e.latlng.lat.toFixed(4) + ',' + e.latlng.lng.toFixed(4);
document.getElementById('currentzoom').value = map.getZoom();
document.getElementById('currentmap').value = selMap;
document.getElementById('theSubmitButton').click();
// console.log('submit selMap='+selMap)
}
map.on('dblclick',mouseDoubleClicked);
function mapbasechg (e) {
document.getElementById('currentmap').value = e.name;
selMap = e.name;
//console.log('mapchange selMap='+e.name)
}
map.on('baselayerchange',mapbasechg);
// ]]>
</script>
<?php } // end of got data to print ?>
<p style="text-align:center;"><small>Script by <a href="https://saratoga-weather.org/">Saratoga-weather.org</a>.
Data provided by <a href="https://www.weather.gov/">NOAA/NWS</a></small> </p>
</div>
</div>
<?php if(!$includeMode) { ?>
</body>
</html>
<?php } // end !$includeMode ?>
<?php
// ------------------------------------------------------------------------------------------
// FUNCTIONS
function WXmap_fetchUrlWithoutHanging($inurl)
{
// get contents from one URL and return as string
global $Status, $needCookie /*, $URLcache */;
$useFopen = false;
$overall_start = time();
if (!$useFopen) {
// Set maximum number of seconds (can have floating-point) to wait for feed before displaying page without feed
$numberOfSeconds = 6;
$url = $inurl;
// Thanks to Curly from ricksturf.com for the cURL fetch functions
$data = '';
$domain = parse_url($url, PHP_URL_HOST);
$theURL = str_replace('nocache', '?' . $overall_start, $url); // add cache-buster to URL if needed
$Status.= "<!-- curl fetching '$theURL' -->\n";
$ch = curl_init(); // initialize a cURL session
curl_setopt($ch, CURLOPT_URL, $theURL); // connect to provided URL
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0); // don't verify peer certificate
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (wxForecastMap.php (JSON) - saratoga-weather.org)');
// curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:58.0) Gecko/20100101 Firefox/58.0');
curl_setopt($ch, CURLOPT_HTTPHEADER, // request LD-JSON format
array(
"Accept: application/geo+json",
"Cache-control: no-cache",
"Pragma: akamai-x-cache-on, akamai-x-get-request-id"
));
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $numberOfSeconds); // connection timeout
curl_setopt($ch, CURLOPT_TIMEOUT, $numberOfSeconds); // data timeout
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); // return the data transfer
curl_setopt($ch, CURLOPT_NOBODY, false); // set nobody
curl_setopt($ch, CURLOPT_HEADER, true); // include header information
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); // follow Location: redirect
curl_setopt($ch, CURLOPT_MAXREDIRS, 1); // but only one time
if (isset($needCookie[$domain])) {
curl_setopt($ch, $needCookie[$domain]); // set the cookie for this request
curl_setopt($ch, CURLOPT_COOKIESESSION, true); // and ignore prior cookies
$Status.= "<!-- cookie used '" . $needCookie[$domain] . "' for GET to $domain -->\n";
}
$data = curl_exec($ch); // execute session
if (curl_error($ch) <> '') { // IF there is an error
$Status.= "<!-- curl Error: " . curl_error($ch) . " -->\n"; // display error notice
}
$cinfo = curl_getinfo($ch); // get info on curl exec.
/*
curl info sample
Array
(
[url] => http://saratoga-weather.net/clientraw.txt
[content_type] => text/plain
[http_code] => 200
[header_size] => 266
[request_size] => 141
[filetime] => -1
[ssl_verify_result] => 0
[redirect_count] => 0
[total_time] => 0.125
[namelookup_time] => 0.016
[connect_time] => 0.063
[pretransfer_time] => 0.063
[size_upload] => 0
[size_download] => 758
[speed_download] => 6064
[speed_upload] => 0
[download_content_length] => 758
[upload_content_length] => -1
[starttransfer_time] => 0.125
[redirect_time] => 0
[redirect_url] =>
[primary_ip] => 74.208.149.102
[certinfo] => Array
(
)
[primary_port] => 80
[local_ip] => 192.168.1.104
[local_port] => 54156
)
*/
if($url !== $cinfo['url'] and $cinfo['http_code'] == 200 and
strpos($url,'/points/') > 0 and strpos($cinfo['url'],'/gridpoints/') > 0) {
# only cache point forecast->gridpoint forecast successful redirects
$Status .= "<!-- note: fetched '".$cinfo['url']."' after redirect was followed. -->\n";
//$URLcache[$inurl] = $cinfo['url'];
//$Status .= "<!-- $inurl added to URLcache -->\n";
}
$Status.= "<!-- HTTP stats: " . " RC=" . $cinfo['http_code'];
if (isset($cinfo['primary_ip'])) {
$Status .= " dest=" . $cinfo['primary_ip'];
}
if (isset($cinfo['primary_port'])) {
$Status .= " port=" . $cinfo['primary_port'];
}
if (isset($cinfo['local_ip'])) {
$Status.= " (from sce=" . $cinfo['local_ip'] . ")";
}
$Status.= "\n Times:" .
" dns=" . sprintf("%01.3f", round($cinfo['namelookup_time'], 3)) .
" conn=" . sprintf("%01.3f", round($cinfo['connect_time'], 3)) .
" pxfer=" . sprintf("%01.3f", round($cinfo['pretransfer_time'], 3));
if ($cinfo['total_time'] - $cinfo['pretransfer_time'] > 0.0000) {
$Status.= " get=" . sprintf("%01.3f", round($cinfo['total_time'] - $cinfo['pretransfer_time'], 3));
}
$Status.= " total=" . sprintf("%01.3f", round($cinfo['total_time'], 3)) . " secs -->\n";
// $Status .= "<!-- curl info\n".print_r($cinfo,true)." -->\n";
curl_close($ch); // close the cURL session
// $Status .= "<!-- raw data\n".$data."\n -->\n";
$stuff = explode("\r\n\r\n",$data); // maybe we have more than one header due to redirects.
$content = (string)array_pop($stuff); // last one is the content
$headers = (string)array_pop($stuff); // next-to-last-one is the headers
if ($cinfo['http_code'] <> '200') {
$Status.= "<!-- headers returned:\n" . $headers . "\n -->\n";
}
return $data; // return headers+contents
}
else {
// print "<!-- using file_get_contents function -->\n";
$STRopts = array(
'http' => array(
'method' => "GET",
'protocol_version' => 1.1,
'header' => "Cache-Control: no-cache, must-revalidate\r\n" .
"Cache-control: max-age=0\r\n" .
"Connection: close\r\n" .
"User-agent: Mozilla/5.0 (NWS-forecast-map.php - saratoga-weather.org)\r\n" .
"Accept: application/geo+json\r\n",
"Cache-control: no-cache\r\n",
"Pragma: akamai-x-cache-on, akamai-x-get-request-id\r\n"
) ,
'ssl' => array(
'method' => "GET",
'protocol_version' => 1.1,
'verify_peer' => false,
'header' => "Cache-Control: no-cache, must-revalidate\r\n" .
"Cache-control: max-age=0\r\n" .
"Connection: close\r\n" .
"User-agent: Mozilla/5.0 (NWS-forecast-map.php - saratoga-weather.org)\r\n" .
"Accept: application/geo+json\r\n",
"Cache-control: no-cache\r\n",
"Pragma: akamai-x-cache-on, akamai-x-get-request-id\r\n"
)
);
$STRcontext = stream_context_create($STRopts);
$T_start = WXmap_fetch_microtime();
$xml = file_get_contents($inurl, false, $STRcontext);
$T_close = WXmap_fetch_microtime();
$headerarray = get_headers($url, 0);
$theaders = join("\r\n", $headerarray);
$xml = $theaders . "\r\n\r\n" . $xml;
$ms_total = sprintf("%01.3f", round($T_close - $T_start, 3));
$Status.= "<!-- file_get_contents() stats: total=$ms_total secs -->\n";
$Status.= "<-- get_headers returns\n" . $theaders . "\n -->\n";
// print " file() stats: total=$ms_total secs.\n";
$overall_end = time();
$overall_elapsed = $overall_end - $overall_start;
$Status.= "<!-- fetch function elapsed= $overall_elapsed secs. -->\n";
// print "fetch function elapsed= $overall_elapsed secs.\n";
return ($xml);
}
} // end WXmap_fetchUrlWithoutHanging
// ------------------------------------------------------------------
function WXmap_fetch_microtime()
{
list($usec, $sec) = explode(" ", microtime());
return ((float)$usec + (float)$sec);
}
// ------------------------------------------------------------------------------------------
function WXmap_get_alerts($countyURL) {
# get/decode the alerts (if any) and return
# strings $alertsList for display and $alertsJS for polygons on the map
$alertURL = str_replace('zones/county','alerts/active/zone',$countyURL);
global $Status,$doDebug;
$Status .= "<!-- fetching County alerts -->\n";
$alertHTML = WXmap_fetchUrlWithoutHanging($alertURL);
$stuff = explode("\r\n\r\n",$alertHTML); // maybe we have more than one header due to redirects.
$content = (string)array_pop($stuff); // last one is the content
$headers = (string)array_pop($stuff); // next-to-last-one is the headers
preg_match('/HTTP\/\S+ (\d+)/', $headers, $m);
//$Status .= "<!-- m=".print_r($m,true)." -->\n";
//$Status .= "<!-- html=".print_r($html,true)." -->\n";
if(!isset($m[1])) {
$Status .= "<!-- failed to fetch $alertURL to process -->\n";
return(array('Error: alert data not available',''));
}
$lastRC = (string)$m[1];
if($lastRC !== '200') { // no data to process
$Status .= "<!-- no alerts to process -->\n";
return(array('',''));
}
$AJSON = json_decode($content,true);
if($doDebug) {$Status .= "<!-- alert JSON\n".var_export($AJSON,true)." -->\n"; }
if(!isset($AJSON['features'][0])) {
$Status .= "<!-- no alerts found at $alertURL -->\n";
return(array('',''));
}
$A = "";
$JS = '';
$colors = array('#DF0101','#F79F81','#F2F5A9','#0174DF','#58FAD0',
'#FACC2E','#01DF01','#F7BE81','#FE2E64','#E0F8EC');
foreach($AJSON['features'] as $i => $rJ) {
$J = $rJ['properties'];
if(isset($J['expires'])) {
$exp = strtotime($J['expires']);
$Status .= "<!-- expires '".$J['expires']. "' ";
if(time() > $exp) {
$Status .= " EXPIRED. -->\n";
continue;
} else {
$Status .= " still active. -->\n";
}
}
// generate the text and link
if(isset($J['headline']) and isset($J['description'])) {
$desc = $J['description'];
$headline = preg_replace('| by .*$|i','',$J['headline']);
$product = $J['id'];
$url = NWS_DETAIL_PRODUCT_URL.$product;
$A .= '<b><a href="'.$url.'" title="'.$desc.'">'.$headline."</a></b><br/>\n";
$Status .= "<!-- alert $i='".$J['headline']."' found expires='".$J['expires']."' -->\n";
}
// process map defs
if(isset($rJ['geometry']['coordinates'][0])) {
if(true or preg_match('|POLYGON\(\(([^\)]+)\)\)|i',$J['geometry'],$m)) {
$poly = array();
foreach ($rJ['geometry']['coordinates'][0] as $i => $coords) {
$poly[] = $coords[0].' '.$coords[1];
}
$Status .= "<!-- alert poly \n".var_export($poly,true)." -->\n";
$cs = $i;
$cc = count($colors);
if(!isset($colors[$cs])) {$tr = range(0,$cs); shuffle($tr); $cs = $tr[0];}
$rc = $colors[$cs];
$id = $i+1;
$JS .= '
var poly'.$id.' = [
';
foreach ($poly as $i => $coords) {
list($longP,$latP) = explode(' ',$coords);
$JS .= " [$latP,$longP],\n";
}
$tooltip = '<b>'.str_replace(' issued ',"</b><br>issued ",$J['headline']);
$tooltip = str_replace(' until ','<br/> until ',$tooltip);
$tooltip = str_replace(' by ','<br/> by ',$tooltip);
$JS .= '
];
var mapoly'.$id.' = new L.polygon(poly'.$id.',{
opacity: 1.0,
color: "'.$rc.'",
strokeOpacity: 0.9,
weight: 2.5,
fillColor: "'.$rc.'",
fillOpacity: 0.20,
title: "'.$J['event'].'"
}).addTo(map);
mapoly'.$id.'.bindTooltip("'.$tooltip.'",
{ sticky: true,
direction: "auto"
});
';
} else {
$Status.= "<!-- no coordinates found -->\n";
}// end polygon generation
} // end JS generation
} // end process alerts
return(array($A,$JS));
}