阿珏酱

<?php
/**
*   WeChat operation table
*   wxtoken table structure
*   id
*   access_token
*   addtime
*   wxticket table structure
*   id
*   ticket
*   addtime
*/
class WX {
	private $appid;
	private $appserect;
	private $curl;
	private $msg;
	protected $errs = array(
		'-1' => 'System busy, please try again later',
		'0' => 'Request successful',
		'40001' => 'AppSecret error or AppSecret does not belong to this public account, please confirm the correctness of AppSecret',
		'40002' => 'Please ensure that the grant_type field value is client_credential',
		'40164' => 'The IP address calling the interface is not in the whitelist, please set it in the interface IP whitelist.',
	);
	function __construct($appid, $appserect) {
		$this->appid = $appid;
		$this->appserect = $appserect;
		$this->curl = new Curl();
	}
	/*
	WeChat web authorization login  needs to be set in the public account - function settings - web authorization domain name
	Step 1: User agrees to authorize and obtains code
	scope : snsapi_base can only get openid and directly redirect
	snsapi_userinfo
	*/
	public function getCode($redirect_uri, $scope = 'snsapi_userinfo',$state = '1') {
		$url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid={$this->appid}&redirect_uri={$redirect_uri}&response_type=code&scope={$scope}&state={$state}#wechat_redirect";
		header("Location:{$url}");
		exit;
	}
	/*
	Step 2: Exchange the code for web authorization access_token
	*/
	public function getAccessTokenByCode($code) {
		$url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid={$this->appid}&secret={$this->appserect}&code={$code}&grant_type=authorization_code";
		// exit($url);
		// $curl = new Curl();
		$result = $this->curl->doGet($url);
		if (!$result) {
			// $this->curl->getError()
			$this->msg = "Failed to obtain token";
			return false;
		}
		$result = json_decode($result, true);
		if ($result['errcode']) {
			$this->msg = $result['errmsg'];
			return false;
		}
		return $result;
	}
	// Step 3: Refresh access_token (if needed)  Get openid through code $type 0 silent authorization 1 popup authorization
	public function getUserInfo($code, $type = 0, $lang = 'zh_CN ') {
		$result = $this->getAccessTokenByCode($code);
			if (!$result) {
			return false;
		}
		$member = C::t(PT_USER)->getByOpenid($result['openid']);
	if ($member) {
		return $member;
	} else {
		if ($type) {
			$url = "https://api.weixin.qq.com/sns/userinfo?access_token={$result['access_token']}&openid={$result['openid']}&lang={$lang}";
			// $return = $this->curl->doGet($url);
			// This interface has issues, forcing file header display
			$return = file_get_contents($url);
			if (!$return) {
				$this->msg = 'Failed to obtain user information';
				return false;
			}
			$return = json_decode($return, true);
			if (!$return) {
				$this->msg = 'Failed to return user information';
				return false;
			}
			// file_put_contents('ccc.txt',print_r($return,true),FILE_APPEND);
			$data = array(
				'openid' => $return['openid'],
				'name' => $return['nickname'],
				'sex' => $return['sex'],
				'province' => $return['province'],
				'city' => $return['city'],
				'country' => $return['country'],
				'img' => $return['headimgurl'],
				'bindtel' => 0,
			);
		} else {
			$data = array(
				'openid' => $result['openid'],
				'username' => "WeChat User_" . random(6,1)
			);
		}
		$name = rand(100000, 1000000000);
		$e = $name . "@qq.com";
		$password = $e;
		$id = UserAddEdit(0, $data['username'], $password, $e,10,0,"", $msg);
		if ($id <= 0) {
			$this->msg = $msg;
			return false;
		}
		C::t(PT_USER)->update($data, $id);
		$member = C::t(PT_USER)->get($id);
		return $member;
		}
	}
	/*
	Public account security center set IP whitelist
	The globally unique interface calling credential for the public account, the public account needs to use access_token when calling each interface. Developers need to keep it properly. The storage of access_token must retain at least 512 characters of space. The current validity period of access_token is 2 hours, and it needs to be refreshed regularly. Repeated acquisition will cause the previously obtained access_token to become invalid.
	*/
	public function getAccessToken($type) {
		$addtime = TIMESTAMP - 7200;
		$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$this->appid}&secret={$this->appserect}";
		$row = C::t(PT_WXTOKEN)->getNew($addtime, $type);
		if ($row) {
			return $row['access_token'];
		} else {
			$result = $this->curl->doGet($url);
			if (!$result) {
				$this->msg = "Unable to obtain token content";
				return false;
			}
			$result = json_decode($result, true);
			if (!$result) {
				$this->msg = "Failed to parse token content";
				return false;
			}
			if ($result['access_token']) {
				C::t(PT_WXTOKEN)->addToken($result['access_token'], $type);
				return $result['access_token'];
			} else {
				$this->msg = "Failed to obtain token";
				return false;
			}
		}
	}
	// Get js ticket  needs to be set in the public account - function settings - JS interface security domain name settings
	public function getJsTicket() {
		$addtime = TIMESTAMP - 7200;
		$row = C::t(PT_WXTICKET)->getNew($addtime);
		if ($row) {
			return $row['ticket'];
		} else {
			$token = $this->getAccessToken();
			if (!$token) {
				return false;
			}
			$url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token={$token}&type=jsapi";
			$result = $this->curl->doGet($url);
			if (!$result) {
				$this->msg = "Unable to obtain js ticket";
				return false;
			}
			$result = json_decode($result, true);
			if (!$result) {
				$this->msg = "Failed to parse js ticket content";
				return false;
			}
			if ($result['ticket']) {
				C::t(PT_WXTICKET)->addTicket($result['ticket']);
				return $result['ticket'];
			} else {
				$this->msg = "Failed to obtain js ticket";
				return false;
			}
		}
	}
	// js sdk ticket signature current webpage URL, excluding # and the part after it
	public function jsSign($data) {
		// 1. All parameters to be signed are sorted in ascending order by ASCII code of field names (dictionary order)
		ksort($data);
		// 2. The URL key-value pair format (i.e., key1=value1&key2=value2…) is concatenated into string string1 using the original value without URL escaping
		$string1 = $this->ToUrlParams($data);
		// echo "string1:{$string1}<br/>";
		// 3. SHA1 encryption is performed on string1
		$sign = sha1($string1);
		// echo "signature:{$sign}<br/>";
		return $sign;
	}
	// Get message content
	public function getMsg() {
		return $this->msg;
	}
	/**
	* Format parameters into url parameters
	*/
	public function ToUrlParams($data) {
		$buff = "";
		foreach ($data as $k => $v) {
			if ($k != "sign" && $v != "" && !is_array($v)) {
				$buff .= $k . "=" . $v . "&";
			}
		}
		$buff = trim($buff, "&");
		return $buff;
	}
}
?>

// WeChat login
function wxlogin() {
	global $_G,$identifier,$config,$wx;
	if (!$_G['uid']) {
		if ($_GET['state']) {
			//Callback
			$member = $wx->getUserInfo($_GET['code']);
			if (!$member) {
				exit($wx->getMsg());
			}
			if (!function_exists("setloginstatus")) {
				include_once libfile('function/member');
			}
			// Set login status $wx
			setloginstatus($member, 2592000);
			checkfollowfeed();
			$_G['uid'] = $member['uid'];
			$_G['member'] = $member;
		} else {
			//Request authorization, encode parameters
			$redirect = urlencode(getProtocol() . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']);
			$wx->getCode($redirect, 'snsapi_base');
		}
	}
}
function getProtocol() {
	return is_HTTPS() ? 'https://' : 'http://';
}
function is_HTTPS() {  if ($_SERVER['HTTPS'] === 1 || $_SERVER['HTTPS'] === 'on' || $_SERVER['SERVER_PORT'] == 443) {
		return true;
	}
	return false;
}