121 lines
3.7 KiB
PHP
121 lines
3.7 KiB
PHP
<?php
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namespace Shikiryu\WebGobbler;
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abstract class Collector
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{
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/**
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* Collector constructor.
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*
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* @param \Shikiryu\WebGobbler\Pool $pool
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*/
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public function __construct(Pool $pool)
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{
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$this->pool = $pool;
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}
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/**
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* @return string
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*/
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abstract public function getName();
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/**
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* @return string
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*/
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public function getPoolDirectory()
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{
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return sprintf('%s/%s', $this->pool->getPoolDirectory(), $this->getName());
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}
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/**
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* @return int
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*/
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abstract public function getRandomImage();
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/**
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* @param int $number
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*
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* @return int
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*/
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abstract public function getRandomImages(int $number);
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/**
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* Generates a random word.
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* This method can be used by all derived classes.
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* Usefull to get random result from search engines when you do not have
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* a dictionnary at hand.
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* The generated word can be a number (containing only digits),
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* a word (containing only letters) or both mixed.
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* Output: string (a random word)
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*
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* @return string
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*/
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protected function generateRandomWord()
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{
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$word = '1';
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try {
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if (random_int(0, 100) < 30) { // Sometimes use only digits
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if (random_int(0, 100) < 30) {
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$word = random_int(1, 999);
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} else {
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$word = random_int(1, 999999);
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}
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} else { // Generate a word containing letters
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$word = '';
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$charset = 'abcdefghijklmnopqrstuvwxyz'; // Search for random word containing letter only.
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if (random_int(0, 100) < 60) { // Sometimes include digits with letters
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$charset = 'abcdefghijklmnopqrstuvwxyz' . 'abcdefghijklmnopqrstuvwxyz' . '0123456789'; // *2 to have more letters than digits
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}
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$charset = str_split($charset);
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for ($i = 0, $l = random_int(2, 5); $i <= $l; $i++) { // Only generate short words (2 to 5 characters)
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$word .= $charset[array_rand($charset)];
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}
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}
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} catch (\Exception $e) {
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}
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return $word;
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}
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/**
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* @param array $parts
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*
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* @return string
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*/
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protected function reverse_url(array $parts) {
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if (array_key_exists('query', $parts) && is_array($parts['query'])) {
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$parts['query'] = http_build_query($parts['query']);
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}
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return (isset($parts['scheme']) ? "{$parts['scheme']}:" : '') .
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((isset($parts['user']) || isset($parts['host'])) ? '//' : '') .
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(isset($parts['user']) ? "{$parts['user']}" : '') .
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(isset($parts['pass']) ? ":{$parts['pass']}" : '') .
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(isset($parts['user']) ? '@' : '') .
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(isset($parts['host']) ? "{$parts['host']}" : '') .
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(isset($parts['port']) ? ":{$parts['port']}" : '') .
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(isset($parts['path']) ? "{$parts['path']}" : '') .
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(isset($parts['query']) ? "?{$parts['query']}" : '') .
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(isset($parts['fragment']) ? "#{$parts['fragment']}" : '');
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}
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/**
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* @param \Shikiryu\WebGobbler\Pool $pool
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*
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* @return \Shikiryu\WebGobbler\Collector[]
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*/
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public static function getAllCollectors(Pool $pool)
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{
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$collectors = [];
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foreach (glob(__DIR__ . '/Collector/*.php') as $class) {
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$classname = sprintf('Shikiryu\\WebGobbler\\Collector\\%s', basename($class, '.php'));
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$tmp_class = new $classname($pool);
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if (is_subclass_of($tmp_class, __CLASS__)) {
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$collectors[] = $tmp_class;
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}
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}
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return $collectors;
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}
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}
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