Import source

PatchBase.php

@@ -0,0 +1,78 @@
+<?php
+
+abstract class PatchBase {
+	protected $patch;
+	protected $data = '';
+	function __construct(string $vendor, string $product, string $url) {
+		$this->patch = new PatchObject(array('id' => $this->id(), 'vendor' => $vendor, 'product' => $product, 'url' => $url));
+	}
+	function __toString() : string {
+		return (string)$this->patch;
+	}
+	function id() : string {
+		return get_class($this);
+	}
+	function getPatch() : PatchObject {
+		return $this->patch;
+	}
+	abstract function check() : bool;
+	protected function fetch(string $url, bool $json = false) : bool {
+		$opt = array('http' => array('user_agent' => 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:1.0) Gecko/20100101 Patchbot/1.0'));
+		$ctx = stream_context_create($opt);
+		if ($str = file_get_contents($url, false, $ctx)) {
+			$this->data = $str;
+			if ($json) {
+				if (!($this->data = json_decode($str, true)))
+					return false;
+			}
+			return true;
+		}
+		return false;
+	}
+	protected function parse(string $re) : bool {
+		if ($str = $this->regex_str($re)) {
+			$this->patch->SetVersion($str);
+			return true;
+		}
+		return false;
+	}
+	protected function parse_json(string $key) : bool {
+		$flat = iterator_to_array(new \RecursiveIteratorIterator(new \RecursiveArrayIterator($this->data)));
+		if (!empty($flat[$key])) {
+			$this->patch->SetVersion($flat[$key]);
+			return true;
+		}
+		return false;
+	}
+	protected function array_extract(string $search) {
+		foreach ($this->data as $val) {
+			if (array_search($search, array_values($val)))
+				$this->data = $val;
+		}
+	}
+	protected function str_crop(string $head = '', string $tail = '') {
+		if (!empty($head)) {
+			if ($str = strstr($this->data, $head))
+				$this->data = $str;
+		}
+		if (!empty($tail)) {
+			if ($str = strstr($this->data, $tail, true))
+				$this->data = $str;
+		}
+	}
+	private function regex(string $pattern) {
+		if (!preg_match($pattern, $this->data, $m))
+			return false;
+		// suppress full pattern match
+		unset($m[0]);
+		return $m;
+	}
+	private function regex_str(string $pattern) {
+		$m = $this->regex($pattern);
+		if ($m)
+			return $m[1];
+		return false;
+	}
+}
+
+?>