]> Raphaël G. Git Repositories - packbundle/commitdiff
Add map controller
authorRaphaël Gertz <git@rapsys.eu>
Wed, 15 Sep 2021 14:58:45 +0000 (16:58 +0200)
committerRaphaël Gertz <git@rapsys.eu>
Wed, 15 Sep 2021 14:58:45 +0000 (16:58 +0200)
Controller/MapController.php [new file with mode: 0644]

diff --git a/Controller/MapController.php b/Controller/MapController.php
new file mode 100644 (file)
index 0000000..7bd6fe7
--- /dev/null
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+<?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);
+       }
+}