odd_job/extend/echowx/utils/SHA1.php

<?php
/**
 * SHA1 class
 *
 * 计算公众平台的消息签名接口.
 *
 * @author 		gaoming13 <gaoming13@yeah.net>
 * @link 		https://github.com/gaoming13/wechat-php-sdk
 * @link 		http://me.diary8.com/
 */

namespace echowx\utils;

class SHA1
{
    /**
     * 用SHA1算法生成安全签名
     * 生成微信消息体的签名
     *
     * @param string $token 票据
     * @param string $timestamp 时间戳
     * @param string $nonce 随机字符串
     * @param string $encrypt_msg 密文消息
     * @return bool|string
     */
    static function getSHA1($token, $timestamp, $nonce, $encrypt_msg)
    {
        //排序
        try {
            $array = array($encrypt_msg, $token, $timestamp, $nonce);
            sort($array, SORT_STRING);
            $str = implode($array);
            return sha1($str);
        } catch (\Exception $e) {
            @error_log('getSHA1 Error: ' . $e->getMessage(), 0);
            return FALSE;
        }
    }

    /**
     * 获取微信消息的签名
     * @param string $token 票据
     * @param string $timestamp 时间戳
     * @param string $nonce 随机字符串
     * @return bool|string
     */
    static function getSignature($token, $timestamp, $nonce)
    {
        //排序
        try {
            $array = array($token, $timestamp, $nonce);
            sort($array, SORT_STRING);
            $str = implode($array);
            return sha1($str);
        } catch (\Exception $e) {
            @error_log('getSignature Error: ' . $e->getMessage(), 0);
            return FALSE;
        }
    }

    /**
     * JS-SDK权限验证的签名
     * @param string $jsapi_ticket
     * @param string $nonceStr
     * @param string $timestamp
     * @param string $url
     * @return bool|string
     */
    static function get_jsapi_signature($jsapi_ticket, $nonceStr, $timestamp, $url)
    {
        //排序
        try {
            $str = "jsapi_ticket=$jsapi_ticket&noncestr=$nonceStr&timestamp=$timestamp&url=$url";
            return sha1($str);
        } catch (\Exception $e) {
            @error_log('get_jsapi_signature Error: ' . $e->getMessage(), 0);
            return FALSE;
        }
    }

    /**
     * 随机生成16位字符串
     * @param int $length
     * @return string 生成的字符串
     */
    static function get_random_str($length = 16)
    {
        $str = "";
        $str_pol = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz";
        $max = strlen($str_pol) - 1;
        for ($i = 0; $i < $length; $i++) {
            $str .= $str_pol[mt_rand(0, $max)];
        }
        return $str;
    }

    /**
     * 生成签名算法2
     * @param array $params 数据
     * @param string $suffix 后缀
     * @return string
     */
    static function getSign2($params, $suffix)
    {
        ksort($params);
        // 格式化参数格式化成url参数
        $buff = '';
        foreach ($params as $k => $v) {
            if($k != 'sign' && $v != '' && !is_array($v)){
                $buff .= $k . '=' . $v . '&';
            }
        }
        $buff = trim($buff, '&');
        $sign = $buff . '&' . $suffix;
        return strtoupper(md5($sign));
    }
}