add clear

2019-07-12 19:25:47 +08:00
parent c4b43deb9f
commit 70eae1dc01
5 changed files with 398 additions and 243 deletions
@@ -0,0 +1,126 @@
+<?php
+
+
+namespace wchat;
+
+
+class Help extends Base
+{
+	public static $OK = 0;
+	public static $IllegalAesKey = -41001;
+	public static $IllegalIv = -41002;
+	public static $IllegalBuffer = -41003;
+	public static $DecodeBase64Error = -41004;
+
+	public static function d($code)
+	{
+		$messages = [
+			static::$OK => '',
+			static::$IllegalAesKey => '',
+			static::$IllegalIv => '',
+			static::$IllegalBuffer => '',
+			static::$DecodeBase64Error => '',
+		];
+		return $messages[$code] ?? static::$DecodeBase64Error;
+	}
+
+	/**
+	 * @param $encryptedData
+	 * @param $iv
+	 * @param $sessionKey
+	 * @param $data
+	 * @param null $appId
+	 * @return int
+	 */
+	public static function decode($encryptedData, $iv, $sessionKey, &$data, $appId = null)
+	{
+		if (strlen($sessionKey) != 24) {
+			return self::$IllegalAesKey;
+		}
+
+		flush();
+		$aesKey = base64_decode($sessionKey);
+		if (strlen($iv) != 24) {
+			return self::$IllegalIv;
+		}
+
+		$aesIV = base64_decode($iv);
+		$aesCipher = base64_decode($encryptedData);
+
+		$result = openssl_decrypt($aesCipher, "AES-128-CBC", $aesKey, OPENSSL_RAW_DATA, $aesIV);
+		if ($result === false) {
+			return self::$IllegalBuffer;
+		}
+
+		$dataObj = json_decode($result);
+		if ($dataObj->watermark->appid != $appId) {
+			return self::$IllegalBuffer;
+		}
+		$data = $dataObj;
+		return self::$OK;
+	}
+
+
+	/**
+	 * @param array $data
+	 * @return string
+	 */
+	public static function toXml(array $data)
+	{
+		$xml = "<xml>";
+		foreach ($data as $key => $val) {
+			if (is_numeric($val)) {
+				$xml .= "<" . $key . ">" . $val . "</" . $key . ">";
+			} else {
+				$xml .= "<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">";
+			}
+		}
+		$xml .= "</xml>";
+		return $xml;
+	}
+
+
+	/**
+	 * @param $xml
+	 * @return mixed
+	 */
+	public static function toArray($xml)
+	{
+		if (!is_null($json = json_decode($xml, TRUE))) {
+			return $json;
+		}
+		if (is_array($json)) {
+			return $json;
+		}
+		$data = simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA);
+		return json_decode(json_encode($data), TRUE);
+	}
+
+
+	/**
+	 * @param array $array
+	 * @param $key
+	 * @param $type
+	 * @return string
+	 */
+	public static function sign(array $array, $key, $type)
+	{
+		ksort($array, SORT_STRING);
+		$string = '';
+		foreach ($array as $key => $val) {
+			if (empty($string)) {
+				$string = $key . '=' . $val;
+			} else {
+				$string .= '&' . $key . '=' . $val;
+			}
+		}
+		$string .= '&key=' . $key;
+
+		if ($type == 'MD5') {
+			return strtoupper(md5($string));
+		} else {
+			return hash('sha256', $string);
+		}
+	}
+
+}