]> Raphaël G. Git Repositories - packbundle/blobdiff - Util/ImageUtil.php
Add image controller and util classes
[packbundle] / Util / ImageUtil.php
diff --git a/Util/ImageUtil.php b/Util/ImageUtil.php
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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\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;
+       }
+}