LoremFlickrProvider.php

<?php

namespace Xvladqt\Faker;

use Faker\Provider\Base as BaseProvider;
use InvalidArgumentException;
use RuntimeException;

/**
 * loremflickr.com provider for Faker
 *
 * @author Vladyslav Volynets <xvladxtreme@gmail.com>
 *
 * @link http://loremflickr.com/
 */
class LoremFlickrProvider extends BaseProvider
{
	
	/**
	 * Generate the URL that will return a random image
	 *
	 * Set randomize to false to remove the random GET parameter at the end of the url.
	 *
	 * @param  integer  $width
	 * @param  integer  $height
	 * @param  array|null|bool  $keywords
	 * @param  bool  $randomize
	 * @param  bool  $gray
	 *
	 * @return string
	 * @throws \Exception
	 * @example 'https://loremflickr.com/640/480?random=1'
	 *
	 */
    public static function imageUrl($width = 640, $height = 480, $keywords = null, $randomize = true, $gray = false)
    {
        $baseUrl = "https://loremflickr.com";
        $url = '';
        if ($gray) {
            $url .= "/g";
        }

        $url .= "/{$width}/{$height}";

        if (is_array($keywords) && count($keywords)) {
            $url .= '/'.implode(',', $keywords);
        }else{
        	$url .= '/kitten';
		}

        if ($randomize) {
            $url .= '?random='.mt_rand(1,1024);
        }else{
            $url .= '?lock='.mt_rand(1,1024);
        }

        return $baseUrl . $url;
    }

    /**
     * Download a remote random image to disk and return its location
     *
     * Requires curl, or allow_url_fopen to be on in php.ini.
     *
     * @example '/path/to/dir/13b73edae8443990be1aa8f1a483bc27.jpg'
     */
    public static function image($dir = null, $width = 640, $height = 480, $keywords = null, $fullPath = true, $randomize = true, $gray = false)
    {
        $dir = is_null($dir) ? sys_get_temp_dir() : $dir; // GNU/Linux / OS X / Windows compatible
        // Validate directory path
        if (!is_dir($dir) || !is_writable($dir)) {
            throw new InvalidArgumentException(sprintf('Cannot write to directory "%s"', $dir));
        }

        // Generate a random filename. Use the server address so that a file
        // generated at the same time on a different server won't have a collision.
        $name = md5(uniqid(empty($_SERVER['SERVER_ADDR']) ? '' : $_SERVER['SERVER_ADDR'], true));
        $filename = $name .'.jpg';
        $filepath = $dir . DIRECTORY_SEPARATOR . $filename;

        $url = static::imageUrl($width, $height, $keywords, $randomize, $gray);

        // save file
        if (function_exists('curl_exec')) {
            // use cURL
            $fp = fopen($filepath, 'wb');
            $ch = curl_init($url);
            curl_setopt($ch, CURLOPT_FILE, $fp);
            curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
            $success = curl_exec($ch) && curl_getinfo($ch, CURLINFO_HTTP_CODE) === 200;
            fclose($fp);
            curl_close($ch);

            if (!$success) {
                unlink($filepath);

                // could not contact the distant URL or HTTP error - fail silently.
                return false;
            }
        } elseif (ini_get('allow_url_fopen')) {
            // use remote fopen() via copy()
            copy($url, $filepath);
        } else {
            return new RuntimeException('The image formatter downloads an image from a remote HTTP server. Therefore, it requires that PHP can request remote hosts, either via cURL or fopen()');
        }

        return $fullPath ? $filepath : $filename;
    }

}
?>