X-Git-Url: https://git.rapsys.eu/.gitweb.cgi/packbundle/blobdiff_plain/f0b926c770e7488b0b965cd611128ac239c95f97..60451adddba856f93d2b4a03dab2e7887fa8f6d0:/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;
+	}
+}