From: Raphaël Gertz <git@rapsys.eu>
Date: Wed, 15 Sep 2021 14:58:45 +0000 (+0200)
Subject: Add map controller
X-Git-Tag: 0.2.0~2
X-Git-Url: https://git.rapsys.eu/packbundle/commitdiff_plain/42a99324bb26ad7305e738882ac2de332ce5cc38
Add map controller
---
diff --git a/Controller/MapController.php b/Controller/MapController.php
new file mode 100644
index 0000000..7bd6fe7
--- /dev/null
+++ b/Controller/MapController.php
@@ -0,0 +1,519 @@
+<?php declare(strict_types=1);
+
+/*
+ * This file is part of the Rapsys PackBundle package.
+ *
+ * (c) Raphaël Gertz <symfony@rapsys.eu>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Rapsys\PackBundle\Controller;
+
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\Filesystem\Exception\IOExceptionInterface;
+use Symfony\Component\Filesystem\Filesystem;
+use Symfony\Component\HttpFoundation\BinaryFileResponse;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
+use Symfony\Component\Routing\RequestContext;
+use Symfony\Contracts\Service\ServiceSubscriberInterface;
+
+use Rapsys\PackBundle\Util\MapUtil;
+use Rapsys\PackBundle\Util\SluggerUtil;
+
+/**
+ * {@inheritdoc}
+ */
+class MapController extends AbstractController implements ServiceSubscriberInterface {
+ /**
+ * The cache path
+ */
+ protected string $cache;
+
+ /**
+ * The ContainerInterface instance
+ *
+ * @var ContainerInterface
+ */
+ protected $container;
+
+ /**
+ * The stream context instance
+ */
+ protected mixed $ctx;
+
+ /**
+ * The MapUtil instance
+ */
+ protected MapUtil $map;
+
+ /**
+ * The public path
+ */
+ protected string $public;
+
+ /**
+ * The SluggerUtil instance
+ */
+ protected SluggerUtil $slugger;
+
+ /**
+ * The tile server url
+ */
+ protected string $url;
+
+ /**
+ * Creates a new osm util
+ *
+ * @param ContainerInterface $container The ContainerInterface instance
+ * @param MapUtil $map The MapUtil instance
+ * @param SluggerUtil $slugger The SluggerUtil instance
+ * @param string $cache The cache path
+ * @param string $public The public path
+ * @param string $url The tile server url
+ */
+ function __construct(ContainerInterface $container, MapUtil $map, SluggerUtil $slugger, string $cache = '../var/cache/map', string $public = './bundles/rapsyspack/map', string $url = MapUtil::osm) {
+ //Set cache
+ $this->cache = $cache;
+
+ //Set container
+ $this->container = $container;
+
+ //Set ctx
+ $this->ctx = stream_context_create(
+ [
+ 'http' => [
+ #'header' => ['Referer: https://www.openstreetmap.org/'],
+ 'max_redirects' => 5,
+ 'timeout' => (int)ini_get('default_socket_timeout'),
+ #'user_agent' => 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.63 Safari/537.36',
+ 'user_agent' => (string)ini_get('user_agent')?:'rapsys_pack/2.0.0',
+ ]
+ ]
+ );
+
+ //Set map
+ $this->map = $map;
+
+ //Set public
+ $this->public = $public;
+
+ //Set slugger
+ $this->slugger = $slugger;
+
+ //Set url
+ $this->url = $url;
+ }
+
+ /**
+ * Return map image
+ *
+ * @param Request $request The Request instance
+ * @param string $hash The hash
+ * @param int $updated The updated timestamp
+ * @param float $latitude The latitude
+ * @param float $longitude The longitude
+ * @param int $zoom The zoom
+ * @param int $width The width
+ * @param int $height The height
+ * @return Response The rendered image
+ */
+ public function map(Request $request, string $hash, int $updated, float $latitude, float $longitude, int $zoom, int $width, int $height): Response {
+ //Without matching hash
+ if ($hash !== $this->slugger->serialize([$updated, $latitude, $longitude, $zoom, $width, $height])) {
+ //Throw new exception
+ throw new NotFoundHttpException(sprintf('Unable to match map hash: %s', $hash));
+ }
+
+ //Set map
+ $map = $this->public.'/'.$zoom.'/'.$latitude.'/'.$longitude.'/'.$width.'x'.$height.'.jpeg';
+
+ //With map up to date file
+ if (is_file($map) && ($mtime = stat($map)['mtime']) && $mtime >= $updated) {
+ //Read map from cache
+ //TODO: handle modified, etag, cache, etc ???
+ return new BinaryFileResponse($map);
+ }
+
+ //Without existing map
+ if (!is_dir($dir = dirname($map))) {
+ //Create filesystem object
+ $filesystem = new Filesystem();
+
+ try {
+ //Create path
+ //XXX: set as 0775, symfony umask (0022) will reduce rights (0755)
+ //XXX: on CoW filesystems execute a chattr +C before filling
+ $filesystem->mkdir($dir, 0775);
+ } catch (IOExceptionInterface $e) {
+ //Throw error
+ throw new \Exception(sprintf('Output path "%s" do not exists and unable to create it', $dir), 0, $e);
+ }
+ }
+
+ //Create image instance
+ $image = new \Imagick();
+
+ //Add new image
+ $image->newImage($width, $height, new \ImagickPixel('transparent'), 'jpeg');
+
+ //Create tile instance
+ $tile = new \Imagick();
+
+ //Get tile xy
+ $centerX = $this->map->longitudeToX($longitude, $zoom);
+ $centerY = $this->map->latitudeToY($latitude, $zoom);
+
+ //Calculate start xy
+ $startX = floor(floor($centerX) - $width / MapUtil::tz);
+ $startY = floor(floor($centerY) - $height / MapUtil::tz);
+
+ //Calculate end xy
+ $endX = ceil(ceil($centerX) + $width / MapUtil::tz);
+ $endY = ceil(ceil($centerY) + $height / MapUtil::tz);
+
+ for($x = $startX; $x <= $endX; $x++) {
+ for($y = $startY; $y <= $endY; $y++) {
+ //Set cache path
+ $cache = $this->cache.'/'.$zoom.'/'.$x.'/'.$y.'.png';
+
+ //Without cache image
+ if (!is_file($cache)) {
+ //Set tile url
+ $tileUri = str_replace(['{Z}', '{X}', '{Y}'], [$zoom, $x, $y], $this->url);
+
+ //Without cache path
+ if (!is_dir($dir = dirname($cache))) {
+ //Create filesystem object
+ $filesystem = new Filesystem();
+
+ try {
+ //Create path
+ //XXX: set as 0775, symfony umask (0022) will reduce rights (0755)
+ $filesystem->mkdir($dir, 0775);
+ } catch (IOExceptionInterface $e) {
+ //Throw error
+ throw new \Exception(sprintf('Output directory "%s" do not exists and unable to create it', $dir), 0, $e);
+ }
+ }
+
+ //Store tile in cache
+ file_put_contents($cache, file_get_contents($tileUri, false, $this->ctx));
+ }
+
+ //Set dest x
+ $destX = intval(floor($width / 2 - MapUtil::tz * ($centerX - $x)));
+
+ //Set dest y
+ $destY = intval(floor($height / 2 - MapUtil::tz * ($centerY - $y)));
+
+ //Read tile from cache
+ $tile->readImage($cache);
+
+ //Compose image
+ $image->compositeImage($tile, \Imagick::COMPOSITE_OVER, $destX, $destY);
+
+ //Clear tile
+ $tile->clear();
+ }
+ }
+
+ //Add imagick draw instance
+ //XXX: see https://www.php.net/manual/fr/imagick.examples-1.php#example-3916
+ $draw = new \ImagickDraw();
+
+ //Set text antialias
+ $draw->setTextAntialias(true);
+
+ //Set stroke antialias
+ $draw->setStrokeAntialias(true);
+
+ //Set text alignment
+ $draw->setTextAlignment(\Imagick::ALIGN_CENTER);
+
+ //Set gravity
+ $draw->setGravity(\Imagick::GRAVITY_CENTER);
+
+ //Set fill color
+ $draw->setFillColor('#cff');
+
+ //Set stroke color
+ $draw->setStrokeColor('#00c3f9');
+
+ //Set stroke width
+ $draw->setStrokeWidth(2);
+
+ //Draw circle
+ $draw->circle($width/2 - 5, $height/2 - 5, $width/2 + 5, $height/2 + 5);
+
+ //Draw on image
+ $image->drawImage($draw);
+
+ //Strip image exif data and properties
+ $image->stripImage();
+
+ //Add latitude
+ //XXX: not supported by imagick :'(
+ $image->setImageProperty('exif:GPSLatitude', $this->map->latitudeToSexagesimal($latitude));
+
+ //Add longitude
+ //XXX: not supported by imagick :'(
+ $image->setImageProperty('exif:GPSLongitude', $this->map->longitudeToSexagesimal($longitude));
+
+ //Add description
+ //XXX: not supported by imagick :'(
+ #$image->setImageProperty('exif:Description', $caption);
+
+ //Set progressive jpeg
+ $image->setInterlaceScheme(\Imagick::INTERLACE_PLANE);
+
+ //Set compression quality
+ //TODO: ajust that
+ $image->setImageCompressionQuality(70);
+
+ //Save image
+ if (!$image->writeImage($map)) {
+ //Throw error
+ throw new \Exception(sprintf('Unable to write image "%s"', $path));
+ }
+
+ //Return response
+ //TODO: générer l'image ici à partir du cache :p
+ #return new Response($image->getImageBlob());
+ return new BinaryFileResponse($map);
+ }
+
+ /**
+ * Return multi map image
+ *
+ * @param Request $request The Request instance
+ * @param string $hash The hash
+ * @param int $updated The updated timestamp
+ * @param float $latitude The latitude
+ * @param float $longitude The longitude
+ * @param string $coordinates The coordinates
+ * @param int $zoom The zoom
+ * @param int $width The width
+ * @param int $height The height
+ * @return Response The rendered image
+ */
+ public function multiMap(Request $request, string $hash, int $updated, float $latitude, float $longitude, string $coordinates, int $zoom, int $width, int $height): Response {
+ //Without matching hash
+ if ($hash !== $this->slugger->serialize([$updated, $latitude, $longitude, $coordinate = $this->slugger->hash($coordinates), $zoom, $width, $height])) {
+ //Throw new exception
+ throw new NotFoundHttpException(sprintf('Unable to match multi map hash: %s', $hash));
+ }
+
+ //Set multi
+ $map = $this->public.'/'.$zoom.'/'.$latitude.'/'.$longitude.'/'.$coordinate.'/'.$width.'x'.$height.'.jpeg';
+
+ //With multi up to date file
+ if (is_file($map) && ($mtime = stat($map)['mtime']) && $mtime >= $updated) {
+ //Read multi from cache
+ //TODO: handle modified, etag, cache, etc ???
+ return new BinaryFileResponse($map);
+ }
+
+ //Without existing multi
+ if (!is_dir($dir = dirname($map))) {
+ //Create filesystem object
+ $filesystem = new Filesystem();
+
+ try {
+ //Create path
+ //XXX: set as 0775, symfony umask (0022) will reduce rights (0755)
+ //XXX: on CoW filesystems execute a chattr +C before filling
+ $filesystem->mkdir($dir, 0775);
+ } catch (IOExceptionInterface $e) {
+ //Throw error
+ throw new \Exception(sprintf('Output path "%s" do not exists and unable to create it', $dir), 0, $e);
+ }
+ }
+
+ //Create image instance
+ $image = new \Imagick();
+
+ //Add new image
+ $image->newImage($width, $height, new \ImagickPixel('transparent'), 'jpeg');
+
+ //Create tile instance
+ $tile = new \Imagick();
+
+ //Get tile xy
+ $centerX = $this->map->longitudeToX($longitude, $zoom);
+ $centerY = $this->map->latitudeToY($latitude, $zoom);
+
+ //Calculate start xy
+ $startX = floor(floor($centerX) - $width / MapUtil::tz);
+ $startY = floor(floor($centerY) - $height / MapUtil::tz);
+
+ //Calculate end xy
+ $endX = ceil(ceil($centerX) + $width / MapUtil::tz);
+ $endY = ceil(ceil($centerY) + $height / MapUtil::tz);
+
+ for($x = $startX; $x <= $endX; $x++) {
+ for($y = $startY; $y <= $endY; $y++) {
+ //Set cache path
+ $cache = $this->cache.'/'.$zoom.'/'.$x.'/'.$y.'.png';
+
+ //Without cache image
+ if (!is_file($cache)) {
+ //Set tile url
+ $tileUri = str_replace(['{Z}', '{X}', '{Y}'], [$zoom, $x, $y], $this->url);
+
+ //Without cache path
+ if (!is_dir($dir = dirname($cache))) {
+ //Create filesystem object
+ $filesystem = new Filesystem();
+
+ try {
+ //Create path
+ //XXX: set as 0775, symfony umask (0022) will reduce rights (0755)
+ $filesystem->mkdir($dir, 0775);
+ } catch (IOExceptionInterface $e) {
+ //Throw error
+ throw new \Exception(sprintf('Output directory "%s" do not exists and unable to create it', $dir), 0, $e);
+ }
+ }
+
+ //Store tile in cache
+ file_put_contents($cache, file_get_contents($tileUri, false, $this->ctx));
+ }
+
+ //Set dest x
+ $destX = intval(floor($width / 2 - MapUtil::tz * ($centerX - $x)));
+
+ //Set dest y
+ $destY = intval(floor($height / 2 - MapUtil::tz * ($centerY - $y)));
+
+ //Read tile from cache
+ $tile->readImage($cache);
+
+ //Compose image
+ $image->compositeImage($tile, \Imagick::COMPOSITE_OVER, $destX, $destY);
+
+ //Clear tile
+ $tile->clear();
+ }
+ }
+
+ //Add imagick draw instance
+ //XXX: see https://www.php.net/manual/fr/imagick.examples-1.php#example-3916
+ $draw = new \ImagickDraw();
+
+ //Set text antialias
+ $draw->setTextAntialias(true);
+
+ //Set stroke antialias
+ $draw->setStrokeAntialias(true);
+
+ //Set text alignment
+ $draw->setTextAlignment(\Imagick::ALIGN_CENTER);
+
+ //Set gravity
+ $draw->setGravity(\Imagick::GRAVITY_CENTER);
+
+ //Convert to array
+ $coordinates = array_reverse(array_map(function ($v) { $p = strpos($v, ','); return ['latitude' => floatval(substr($v, 0, $p)), 'longitude' => floatval(substr($v, $p + 1))]; }, explode('-', $coordinates)), true);
+
+ //Iterate on locations
+ foreach($coordinates as $id => $coordinate) {
+ //Set dest x
+ $destX = intval(floor($width / 2 - MapUtil::tz * ($centerX - $this->map->longitudeToX(floatval($coordinate['longitude']), $zoom))));
+
+ //Set dest y
+ $destY = intval(floor($height / 2 - MapUtil::tz * ($centerY - $this->map->latitudeToY(floatval($coordinate['latitude']), $zoom))));
+
+ //Set fill color
+ $draw->setFillColor($this->map->fill);
+
+ //Set font size
+ $draw->setFontSize($this->map->fontSize);
+
+ //Set stroke color
+ $draw->setStrokeColor($this->map->stroke);
+
+ //Set circle radius
+ $radius = $this->map->radius;
+
+ //Set stroke width
+ $stroke = $this->map->strokeWidth;
+
+ //With matching position
+ if ($coordinate['latitude'] === $latitude && $coordinate['longitude'] == $longitude) {
+ //Set fill color
+ $draw->setFillColor($this->map->highFill);
+
+ //Set font size
+ $draw->setFontSize($this->map->highFontSize);
+
+ //Set stroke color
+ $draw->setStrokeColor($this->map->highStroke);
+
+ //Set circle radius
+ $radius = $this->map->highRadius;
+
+ //Set stroke width
+ $stroke = $this->map->highStrokeWidth;
+ }
+
+ //Set stroke width
+ $draw->setStrokeWidth($stroke);
+
+ //Draw circle
+ $draw->circle($destX - $radius, $destY - $radius, $destX + $radius, $destY + $radius);
+
+ //Set fill color
+ $draw->setFillColor($draw->getStrokeColor());
+
+ //Set stroke width
+ $draw->setStrokeWidth($stroke / 4);
+
+ //Get font metrics
+ $metrics = $image->queryFontMetrics($draw, strval($id));
+
+ //Add annotation
+ $draw->annotation($destX - $radius, $destY + $stroke, strval($id));
+ }
+
+ //Draw on image
+ $image->drawImage($draw);
+
+ //Strip image exif data and properties
+ $image->stripImage();
+
+ //Add latitude
+ //XXX: not supported by imagick :'(
+ $image->setImageProperty('exif:GPSLatitude', $this->map->latitudeToSexagesimal($latitude));
+
+ //Add longitude
+ //XXX: not supported by imagick :'(
+ $image->setImageProperty('exif:GPSLongitude', $this->map->longitudeToSexagesimal($longitude));
+
+ //Add description
+ //XXX: not supported by imagick :'(
+ #$image->setImageProperty('exif:Description', $caption);
+
+ //Set progressive jpeg
+ $image->setInterlaceScheme(\Imagick::INTERLACE_PLANE);
+
+ //Set compression quality
+ //TODO: ajust that
+ $image->setImageCompressionQuality(70);
+
+ //Save image
+ if (!$image->writeImage($map)) {
+ //Throw error
+ throw new \Exception(sprintf('Unable to write image "%s"', $path));
+ }
+
+ //Return response
+ //TODO: générer l'image ici à partir du cache :p
+ #return new Response($image->getImageBlob());
+ return new BinaryFileResponse($map);
+ }
+}