Raphaël G. Git Repositories - packbundle/blob - Controller/ImageController.php

   1 <?php declare(strict_types=1);
   2
   3 /*
   4  * This file is part of the Rapsys PackBundle package.
   5  *
   6  * (c) Raphaël Gertz <symfony@rapsys.eu>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Rapsys\PackBundle\Controller;
  13
  14 use Psr\Container\ContainerInterface;
  15
  16 use Symfony\Component\HttpFoundation\HeaderUtils;
  17 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
  18 use Symfony\Component\Filesystem\Exception\IOExceptionInterface;
  19 use Symfony\Component\Filesystem\Filesystem;
  20 use Symfony\Component\HttpFoundation\BinaryFileResponse;
  21 use Symfony\Component\HttpFoundation\Request;
  22 use Symfony\Component\HttpFoundation\Response;
  23 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
  24 use Symfony\Component\Routing\RequestContext;
  25 use Symfony\Contracts\Service\ServiceSubscriberInterface;
  26
  27 use Rapsys\PackBundle\Util\ImageUtil;
  28 use Rapsys\PackBundle\Util\SluggerUtil;
  29
  30 /**
  31  * {@inheritdoc}
  32  */
  33 class ImageController extends AbstractController implements ServiceSubscriberInterface {
  34         /**
  35          * Creates a new image controller
  36          *
  37          * @param ContainerInterface $container The ContainerInterface instance
  38          * @param ImageUtil $image The MapUtil instance
  39          * @param SluggerUtil $slugger The SluggerUtil instance
  40          * @param string $cache The cache path
  41          * @param string $path The public path
  42          * @param string $prefix The prefix
  43          */
  44         function __construct(protected ContainerInterface $container, protected ImageUtil $image, protected SluggerUtil $slugger, protected string $cache = '../var/cache', protected string $path = './bundles/rapsyspack', protected string $prefix = 'image') {
  45         }
  46
  47         /**
  48          * Return captcha image
  49          *
  50          * @param Request $request The Request instance
  51          * @param string $hash The hash
  52          * @param int $updated The updated timestamp
  53          * @param string $equation The shorted equation
  54          * @param int $width The width
  55          * @param int $height The height
  56          * @return Response The rendered image
  57          */
  58         public function captcha(Request $request, string $hash, int $updated, string $equation, int $width, int $height): Response {
  59                 //Without matching hash
  60                 if ($hash !== $this->slugger->serialize([$updated, $equation, $width, $height])) {
  61                         //Throw new exception
  62                         throw new NotFoundHttpException(sprintf('Unable to match captcha hash: %s', $hash));
  63                 }
  64
  65                 //Set hashed tree
  66                 $hashed = array_reverse(str_split(strval($updated)));
  67
  68                 //Set captcha
  69                 $captcha = $this->path.'/'.$this->prefix.'/'.$hashed[0].'/'.$hashed[1].'/'.$hashed[2].'/'.$updated.'/'.$equation.'/'.$width.'x'.$height.'.jpeg';
  70
  71                 //Unshort equation
  72                 $equation = $this->slugger->unshort($equation);
  73
  74                 //Without captcha up to date file
  75                 if (!is_file($captcha) || !($mtime = stat($captcha)['mtime']) || $mtime < $updated) {
  76                         //Without existing captcha path
  77                         if (!is_dir($dir = dirname($captcha))) {
  78                                 //Create filesystem object
  79                                 $filesystem = new Filesystem();
  80
  81                                 try {
  82                                         //Create path
  83                                         //XXX: set as 0775, symfony umask (0022) will reduce rights (0755)
  84                                         //XXX: on CoW filesystems execute a chattr +C before filling
  85                                         $filesystem->mkdir($dir, 0775);
  86                                 } catch (IOExceptionInterface $e) {
  87                                         //Throw error
  88                                         throw new \Exception(sprintf('Output path "%s" do not exists and unable to create it', $dir), 0, $e);
  89                                 }
  90                         }
  91
  92                         //Create image instance
  93                         $image = new \Imagick();
  94
  95                         //Add imagick draw instance
  96                         //XXX: see https://www.php.net/manual/fr/imagick.examples-1.php#example-3916
  97                         $draw = new \ImagickDraw();
  98
  99                         //Set text antialias
 100                         $draw->setTextAntialias(true);
 101
 102                         //Set stroke antialias
 103                         $draw->setStrokeAntialias(true);
 104
 105                         //Set text alignment
 106                         $draw->setTextAlignment(\Imagick::ALIGN_CENTER);
 107
 108                         //Set gravity
 109                         $draw->setGravity(\Imagick::GRAVITY_CENTER);
 110
 111                         //Set fill color
 112                         $draw->setFillColor($this->image->getFill());
 113
 114                         //Set stroke color
 115                         $draw->setStrokeColor($this->image->getStroke());
 116
 117                         //Set font size
 118                         $draw->setFontSize($this->image->getFontSize() / 1.5);
 119
 120                         //Set stroke width
 121                         $draw->setStrokeWidth($this->image->getStrokeWidth() / 3);
 122
 123                         //Set rotation
 124                         $draw->rotate($rotate = (rand(25, 75)*(rand(0,1)?-.1:.1)));
 125
 126                         //Get font metrics
 127                         $metrics2 = $image->queryFontMetrics($draw, strval('stop spam'));
 128
 129                         //Add annotation
 130                         $draw->annotation($width / 2 - ceil(rand(intval(-$metrics2['textWidth']), intval($metrics2['textWidth'])) / 2) - abs($rotate), ceil($metrics2['textHeight'] + $metrics2['descender'] + $metrics2['ascender']) / 2 - $this->image->getStrokeWidth() - $rotate, strval('stop spam'));
 131
 132                         //Set rotation
 133                         $draw->rotate(-$rotate);
 134
 135                         //Set font size
 136                         $draw->setFontSize($this->image->getFontSize());
 137
 138                         //Set stroke width
 139                         $draw->setStrokeWidth($this->image->getStrokeWidth());
 140
 141                         //Set rotation
 142                         $draw->rotate($rotate = (rand(25, 50)*(rand(0,1)?-.1:.1)));
 143
 144                         //Get font metrics
 145                         $metrics = $image->queryFontMetrics($draw, strval($equation));
 146
 147                         //Add annotation
 148                         $draw->annotation($width / 2, ceil($metrics['textHeight'] + $metrics['descender'] + $metrics['ascender']) / 2 - $this->image->getStrokeWidth(), strval($equation));
 149
 150                         //Set rotation
 151                         $draw->rotate(-$rotate);
 152
 153                         //Add new image
 154                         #$image->newImage(intval(ceil($metrics['textWidth'])), intval(ceil($metrics['textHeight'] + $metrics['descender'])), new \ImagickPixel($this->image->getBackground()), 'jpeg');
 155                         $image->newImage($width, $height, new \ImagickPixel($this->image->getBackground()), 'jpeg');
 156
 157                         //Draw on image
 158                         $image->drawImage($draw);
 159
 160                         //Strip image exif data and properties
 161                         $image->stripImage();
 162
 163                         //Set compression quality
 164                         $image->setImageCompressionQuality(70);
 165
 166                         //Save captcha
 167                         if (!$image->writeImage($captcha)) {
 168                                 //Throw error
 169                                 throw new \Exception(sprintf('Unable to write image "%s"', $captcha));
 170                         }
 171
 172                         //Set mtime
 173                         $mtime = stat($captcha)['mtime'];
 174                 }
 175
 176                 //Read captcha from cache
 177                 $response = new BinaryFileResponse($captcha);
 178
 179                 //Set file name
 180                 $response->setContentDisposition(HeaderUtils::DISPOSITION_INLINE, 'captcha-stop-spam-'.str_replace([' ', '*', '+'], ['-', 'mul', 'add'], $equation).'-'.$width.'x'.$height.'.jpeg');
 181
 182                 //Set etag
 183                 $response->setEtag(md5($hash));
 184
 185                 //Set last modified
 186                 $response->setLastModified(\DateTime::createFromFormat('U', strval($mtime)));
 187
 188                 //Set as public
 189                 $response->setPublic();
 190
 191                 //Return 304 response if not modified
 192                 $response->isNotModified($request);
 193
 194                 //Return response
 195                 return $response;
 196         }
 197
 198         /**
 199          * Return thumb image
 200          *
 201          * @param Request $request The Request instance
 202          * @param string $hash The hash
 203          * @param int $updated The updated timestamp
 204          * @param string $path The image path
 205          * @param int $width The width
 206          * @param int $height The height
 207          * @return Response The rendered image
 208          */
 209         public function thumb(Request $request, string $hash, int $updated, string $path, int $width, int $height): Response {
 210                 //Without matching hash
 211                 if ($hash !== $this->slugger->serialize([$updated, $path, $width, $height])) {
 212                         //Throw new exception
 213                         throw new NotFoundHttpException(sprintf('Unable to match thumb hash: %s', $hash));
 214                 }
 215
 216                 //Set hashed tree
 217                 $hashed = array_reverse(str_split(strval($updated)));
 218
 219                 //Set thumb
 220                 $thumb = $this->path.'/'.$this->prefix.'/'.$hashed[0].'/'.$hashed[1].'/'.$hashed[2].'/'.$updated.'/'.$path.'/'.$width.'x'.$height.'.jpeg';
 221
 222                 //Unshort path
 223                 $path = $this->slugger->unshort($path);
 224
 225                 //Without thumb up to date file
 226                 if (!is_file($thumb) || !($mtime = stat($thumb)['mtime']) || $mtime < $updated) {
 227                         //Without existing thumb path
 228                         if (!is_dir($dir = dirname($thumb))) {
 229                                 //Create filesystem object
 230                                 $filesystem = new Filesystem();
 231
 232                                 try {
 233                                         //Create path
 234                                         //XXX: set as 0775, symfony umask (0022) will reduce rights (0755)
 235                                         //XXX: on CoW filesystems execute a chattr +C before filling
 236                                         $filesystem->mkdir($dir, 0775);
 237                                 } catch (IOExceptionInterface $e) {
 238                                         //Throw error
 239                                         throw new \Exception(sprintf('Output path "%s" do not exists and unable to create it', $dir), 0, $e);
 240                                 }
 241                         }
 242
 243                         //Create image instance
 244                         $image = new \Imagick();
 245
 246                         //Read image
 247                         $image->readImage(realpath($path));
 248
 249                         //Crop using aspect ratio
 250                         //XXX: for better result upload image directly in aspect ratio :)
 251                         $image->cropThumbnailImage($width, $height);
 252
 253                         //Strip image exif data and properties
 254                         $image->stripImage();
 255
 256                         //Set compression quality
 257                         //TODO: ajust that
 258                         $image->setImageCompressionQuality(70);
 259
 260                         //Save thumb
 261                         if (!$image->writeImage($thumb)) {
 262                                 //Throw error
 263                                 throw new \Exception(sprintf('Unable to write image "%s"', $thumb));
 264                         }
 265
 266                         //Set mtime
 267                         $mtime = stat($thumb)['mtime'];
 268                 }
 269
 270                 //Read thumb from cache
 271                 $response = new BinaryFileResponse($thumb);
 272
 273                 //Set file name
 274                 $response->setContentDisposition(HeaderUtils::DISPOSITION_INLINE, 'thumb-'.str_replace('/', '_', $path).'-'.$width.'x'.$height.'.jpeg');
 275
 276                 //Set etag
 277                 $response->setEtag(md5($hash));
 278
 279                 //Set last modified
 280                 $response->setLastModified(\DateTime::createFromFormat('U', strval($mtime)));
 281
 282                 //Set as public
 283                 $response->setPublic();
 284
 285                 //Return 304 response if not modified
 286                 $response->isNotModified($request);
 287
 288                 //Return response
 289                 return $response;
 290         }
 291 }