--- /dev/null
+<?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\Util;
+
+use Symfony\Component\Filesystem\Exception\IOExceptionInterface;
+use Symfony\Component\Filesystem\Filesystem;
+use Symfony\Component\Routing\RouterInterface;
+
+/**
+ * Helps manage map
+ */
+class ImageUtil {
+ /**
+ * The captcha width
+ */
+ const captchaWidth = 192;
+
+ /**
+ * The captcha height
+ */
+ const captchaHeight = 52;
+
+ /**
+ * The captcha background color
+ */
+ const captchaBackground = 'white';
+
+ /**
+ * The captcha fill color
+ */
+ const captchaFill = '#cff';
+
+ /**
+ * The captcha font size
+ */
+ const captchaFontSize = 45;
+
+ /**
+ * The captcha stroke color
+ */
+ const captchaStroke = '#00c3f9';
+
+ /**
+ * The captcha stroke width
+ */
+ const captchaStrokeWidth = 2;
+
+ /**
+ * The thumb width
+ */
+ const thumbWidth = 640;
+
+ /**
+ * The thumb height
+ */
+ const thumbHeight = 640;
+
+ /**
+ * The cache path
+ */
+ protected string $cache;
+
+ /**
+ * The public path
+ */
+ protected string $public;
+
+ /**
+ * The RouterInterface instance
+ */
+ protected RouterInterface $router;
+
+ /**
+ * The SluggerUtil instance
+ */
+ protected SluggerUtil $slugger;
+
+ /**
+ * Creates a new map util
+ *
+ * @param RouterInterface $router The RouterInterface instance
+ * @param SluggerUtil $slugger The SluggerUtil instance
+ */
+ function __construct(RouterInterface $router, SluggerUtil $slugger, string $cache = '../var/cache/image', string $public = './bundles/rapsyspack/image', $captchaBackground = self::captchaBackground, $captchaFill = self::captchaFill, $captchaFontSize = self::captchaFontSize, $captchaStroke = self::captchaStroke, $captchaStrokeWidth = self::captchaStrokeWidth) {
+ //Set cache
+ $this->cache = $cache;
+
+ //set captcha background
+ $this->captchaBackground = $captchaBackground;
+
+ //set captcha fill
+ $this->captchaFill = $captchaFill;
+
+ //set captcha font size
+ $this->captchaFontSize = $captchaFontSize;
+
+ //set captcha stroke
+ $this->captchaStroke = $captchaStroke;
+
+ //set captcha stroke width
+ $this->captchaStrokeWidth = $captchaStrokeWidth;
+
+ //Set public
+ $this->public = $public;
+
+ //Set router
+ $this->router = $router;
+
+ //Set slugger
+ $this->slugger = $slugger;
+ }
+
+ /**
+ * Get captcha data
+ *
+ * @param int $updated The updated timestamp
+ * @param int $width The width
+ * @param int $height The height
+ * @return array The captcha data
+ */
+ public function getCaptcha(int $updated, int $width = self::captchaWidth, int $height = self::captchaHeight): array {
+ //Set a
+ $a = rand(0, 9);
+
+ //Set b
+ $b = rand(0, 5);
+
+ //Set c
+ $c = rand(0, 9);
+
+ //Set equation
+ $equation = $a.' * '.$b.' + '.$c;
+
+ //Short path
+ $short = $this->slugger->short($equation);
+
+ //Set hash
+ $hash = $this->slugger->serialize([$updated, $short, $width, $height]);
+
+ //Return array
+ return [
+ 'token' => $this->slugger->hash(strval($a * $b + $c)),
+ 'value' => strval($a * $b + $c),
+ 'equation' => str_replace([' ', '*', '+'], ['-', 'mul', 'add'], $equation),
+ 'src' => $this->router->generate('rapsys_pack_captcha', ['hash' => $hash, 'updated' => $updated, 'equation' => $short, 'width' => $width, 'height' => $height]),
+ 'width' => $width,
+ 'height' => $height
+ ];
+ }
+
+ /**
+ * Get thumb data
+ *
+ * @param string $caption The caption
+ * @param int $updated The updated timestamp
+ * @param string $path The path
+ * @param int $width The width
+ * @param int $height The height
+ * @return array The thumb data
+ */
+ public function getThumb(string $caption, int $updated, string $path, int $width = self::thumbWidth, int $height = self::thumbHeight): array {
+ //Get image width and height
+ list($imageWidth, $imageHeight) = getimagesize($path);
+
+ //Short path
+ $short = $this->slugger->short($path);
+
+ //Set link hash
+ $link = $this->slugger->serialize([$updated, $short, $imageWidth, $imageHeight]);
+
+ //Set src hash
+ $src = $this->slugger->serialize([$updated, $short, $width, $height]);
+
+ //Return array
+ return [
+ 'caption' => $caption,
+ 'link' => $this->router->generate('rapsys_pack_thumb', ['hash' => $link, 'updated' => $updated, 'path' => $short, 'width' => $imageWidth, 'height' => $imageHeight]),
+ 'src' => $this->router->generate('rapsys_pack_thumb', ['hash' => $src, 'updated' => $updated, 'path' => $short, 'width' => $width, 'height' => $height]),
+ 'width' => $width,
+ 'height' => $height
+ ];
+ }
+
+ /**
+ * Remove image
+ *
+ * @param int $updated The updated timestamp
+ * @param string $path The path
+ * @return array The thumb clear success
+ */
+ public function remove(int $updated, string $path): bool {
+ //Set hash tree
+ $hash = array_reverse(str_split(strval($updated)));
+
+ //Set dir
+ $dir = $this->public.'/'.$hash[0].'/'.$hash[1].'/'.$hash[2].'/'.$updated.'/'.$this->slugger->short($path);
+
+ //Set removes
+ $removes = [];
+
+ //With dir
+ if (is_dir($dir)) {
+ //Add tree to remove
+ $removes[] = $dir;
+
+ //Iterate on each file
+ foreach(array_merge($removes, array_diff(scandir($dir), ['..', '.'])) as $file) {
+ //With file
+ if (is_file($dir.'/'.$file)) {
+ //Add file to remove
+ $removes[] = $dir.'/'.$file;
+ }
+ }
+ }
+
+ //Create filesystem object
+ $filesystem = new Filesystem();
+
+ try {
+ //Remove list
+ $filesystem->remove($removes);
+ } catch (IOExceptionInterface $e) {
+ //Throw error
+ throw new \Exception(sprintf('Unable to delete thumb directory "%s"', $dir), 0, $e);
+ }
+
+ //Return success
+ return true;
+ }
+}