微信公众号开发之授权
微信公众号开发之授权
开发前准备
首先准备自己的服务器资源，已有服务器的请忽略服务器资源。
我这里演示新浪云服务器环境搭建：（新注册号有免费云豆可用）
服务器资源（https://sae.sina.com.cn）
access_token与服务器接入
微信授权登录，获取登录信息
##费话不多说，直接上代码(php TP框架)，第一个文件WechatController.php
<?php
namespace Home\Controller;
use Think\Controller;
use Common\Model\UserModel as UserModel;
class WechatController extends Controller{
private $appid;
private $appkey;
private $baseurl ;
//微信公众号授权
public function __construct(){
parent::__construct();
$this->appid = C("WEIXIN_INFO.AppID");
$this->appkey = C("WEIXIN_INFO.AppSecret");
$this->baseurl = "https://api.weixin.qq.com/";
}
//第一步：用户同意授权，获取code
public function index(){
$scope = "snsapi_userinfo";
$callback = urlencode(C('SITE_URL')."Home/Wechat/callback");
$state = time();
$URL_GET_CODE = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=$this->appid&redirect_uri=$callback&response_type=code&scope=$scope&state=$state#wechat_redirect";
//echo $URL_GET_CODE;
header("Location: $URL_GET_CODE");
exit();
}
//回调
public function callback(){
header("content-type:text/html; charset=utf-8");
$code = I("get.code");
$state = I("get.state");
if($code && $state){
$data = $this->access_token($code);
if($data){
$access_token = $data['access_token'];
$openid = $data['openid'];
$userinfo = $this->userinfo($access_token,$openid);
if($this->login_sccess($userinfo)){
$ref = session("ref");
if(!$ref){
header('Location:/Home/Index/index');
}else{
header("Location:$ref");
session("ref",null);
}
exit();
}
}
}
header('Location:/Home/Wechat/login_failure');
}
//第二步：通过code换取网页授权access_token
private function access_token($code){
$URL_GET_ACCESS_TOKEN ="sns/oauth2/access_token?appid=$this->appid&secret=$this->appkey&code=$code&grant_type=authorization_code";
$content = https_get($this->baseurl.$URL_GET_ACCESS_TOKEN);
if($content){
$data = json_decode($content,true);
return $data;
}else{
return false;
}
}
//第三步：刷新access_token（如果需要）
public function refresh_token($access_token){
$URL_REFRESH_TOKEN = "sns/oauth2/refresh_token?appid=$this->appid&grant_type=refresh_token&refresh_token=$access_token ";
$content = https_get($this->baseurl.$URL_REFRESH_TOKEN);
}
//第四步：拉取用户信息(需scope为 snsapi_userinfo)
private function userinfo($access_token,$openid){
$URL_GET_USER_INFO = "sns/userinfo?access_token=$access_token&openid=$openid&lang=zh_CN";
$content = https_get($this->baseurl.$URL_GET_USER_INFO);
if($content)
{
$json = json_decode($content,true);
return $json;
}else{
return false;
}
}
private function login_sccess( $userinfo){
if($userinfo && $userinfo['errcode']){
echo $userinfo['errmsg'];
exit();
}
$userModel = new UserModel();
if($userinfo && $userinfo['openid'])
{
$user = $userModel->where(array('openid' =>$userinfo['openid']))->find();
if(!$user){
$data['openid'] = $userinfo['openid'];
$data['nickname'] = filterEmoji($userinfo['nickname']);
$data['sex'] = $userinfo['sex'];
$data['headimg'] = $userinfo['headimgurl'];
//$userModel->data($data)->add();
$userModel -> addUser($data['openid'], $data['nickname'], $data['headimg'],$data['sex']);
$userid = $userModel->getLastInsID();
$user = $userModel->where(array('user_id' =>$userid))->find();
}
session('user', $user);
return true;
}
return false;
}
public function login_failure()
{
header("content-type:text/html; charset=utf-8");
echo "登陆失败";
}
}
##费话不多说，直接上代码(php TP框架)，第二个文件WechatController中要用到的function function.php
<?php
/**
* 手机号正则
*/
function is_mobile($telphone) {
if (preg_match("/^1[34578]{1}\d{9}$/", $telphone)) {
return true;
}
return false;
}
/**
* 邮箱正则
*/
function is_email($email) {
if (preg_match("/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/", $email)) {
return true;
}
return false;
}
/**
* 身份证号正则
*/
function is_id_number($id_number) {
if (preg_match("/^(^[1-9]\d{7}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])\d{3}$)|(^[1-9]\d{5}[1-9]\d{3}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])((\d{4})|\d{3}[Xx])$)$/", $id_number)) {
return true;
}
return false;
}
//HTTPS GET
function https_get($url) {
$curl = curl_init();
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($curl, CURLOPT_SSLVERSION, 1); // CURL_SSLVERSION_TLSv1
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$content = curl_exec($curl);
$status = curl_getinfo($curl);
curl_close($curl);
if (intval($status["http_code"]) == 200) {
return $content;
} else {
return false;
}
}
//HTTPS POST
function https_post($url, $data = null) {
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
if (!empty($data)) {
curl_setopt($curl, CURLOPT_POST, 1);
curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
}
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$content = curl_exec($curl);
$status = curl_getinfo($curl);
curl_close($curl);
if (intval($aStatus["http_code"]) == 200) {
return $content;
} else {
return false;
}
}
/**
* 返回固定长度的随机字符串,组成：a-z,A-Z,0-9
* @param type $length 随机字符总长度
*/
function createNonceStr($length = 16) {
$chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
$str = "";
for ($i = 0; $i < $length; $i++) {
$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
}
return $str;
}
function getIP() {
global $ip;
if (getenv("HTTP_CLIENT_IP")) {
$ip = getenv("HTTP_CLIENT_IP");
} else if (getenv("HTTP_X_FORWARDED_FOR")) {
$ip = getenv("HTTP_X_FORWARDED_FOR");
} else if (getenv("REMOTE_ADDR")) {
$ip = getenv("REMOTE_ADDR");
} else {
$ip = "Unknow";
}
return $ip;
}
/**
* 字体库
* 生成证书时用到
*/
function fontFamily() {
$array = array(
"1" => array('name' => "默认字体", 'file' => ROOT_PATH . "/Public/css/ttfs/simsun.ttf"),
"2" => array('name' => "Calibri", 'file' => ROOT_PATH . "/Public/css/ttfs/calibri.ttf"),
"3" => array('name' => "超黑粗体", 'file' => ROOT_PATH . "/Public/css/ttfs/hanyi_chaochu_hei.ttf"),
"4" => array('name' => "斜体", 'file' => ROOT_PATH . "/Public/css/ttfs/yun_xieti.ttf"), //云字体
"5" => array('name' => "Georgia Bold", 'file' => ROOT_PATH . "/Public/css/ttfs/georgiab.ttf"), //
"6" => array('name' => "constantia", 'file' => ROOT_PATH . "/Public/css/ttfs/constantia.ttf"),
"7" => array('name' => "Arial", 'file' => ROOT_PATH . "/Public/css/ttfs/Arial.ttf"), //
"8" => array('name' => "arialbd", 'file' => ROOT_PATH . "/Public/css/ttfs/arialbd.ttf"), //
"9" => array('name' => "HelveticaLT", 'file' => ROOT_PATH . "/Public/css/ttfs/Helvetica LT 33 Thin Extended.ttf"), //
"10" => array('name' => "Helvetica Narrow Bold", 'file' => ROOT_PATH . "/Public/css/ttfs/Helvetica Narrow Bold.ttf"), //
"11" => array('name' => "Helvetica Bold", 'file' => ROOT_PATH . "/Public/css/ttfs/Helvetica Bold.ttf"), //
"12" => array('name' => "Helvetica", 'file' => ROOT_PATH . "/Public/css/ttfs/Helvetica.ttf"), //
);
return $array;
}
/**
* 日期格式库
* 生成证书时用到
*/
function dateFormat() {
// $format1 = "F d,Y";
// $format2 = "jS F Y";
// $array = array(
// '1' => array("name" => date($format1, $time), 'format' => $format1, 'formatM' => array("F d", "F d Y"), 'formatD' => array('F d', 'd Y')),
// '2' => array("name" => date($format2, $time), 'format' => $format2, 'formatM' => array("jS F", "jS F Y"), 'formatD' => array('jS', 'jS F Y')),
// );
$format1 = "F d,Y";
$format2 = "jS F Y";
$format3 = "F jS,Y";
$format4 = "jS/F/Y";
$format5 = "F j Y";
$format6 = "m.d.Y";
$format7 = "m/d/y";
$format8 = "jS F Y";
$time = 1488507632;
$array = array(
'1' => array("name" => date($format1, $time), 'format' => $format1, 'formatM' => array("F d", "d, Y"), 'formatD' => array('F d', 'd, Y')),
'2' => array("name" => date($format2, $time), 'format' => $format2, 'formatM' => array("jS F", "jS F Y"), 'formatD' => array('jS', 'jS F Y')),
'3' => array("name" => date($format3, $time), 'format' => $format3, 'formatM' => array("F jS ", " F jS Y"), 'formatD' => array('F jS ', ' jS,Y')),
'4' => array("name" => date($format4, $time), 'format' => $format4, 'formatM' => array("jS/F/Y", "jS/F/Y"), 'formatD' => array('jS/F/Y', 'jS/F/Y')),
'5' => array("name" => date($format5, $time), 'format' => $format5, 'formatM' => array("F j", "j,Y"), 'formatD' => array("F j", "j,Y")),
'6' => array("name" => date($format6, $time), 'format' => $format6, 'formatM' => array("m.d", "d.Y"), 'formatD' => array("m.d", "d.Y")),
'7' => array("name" => date($format7, $time), 'format' => $format7, 'formatM' => array("m/d/y", "m/d/y"), 'formatD' => array('m/d/y', 'm/d/y')),
'8' => array("name" => date($format8, $time), 'format' => $format8), //十字星证书专用
);
return $array;
}
/**
* 删除给定的文件
*/
function delFile($filename) {
@unlink($filename);
}
/**
* 获得名称的拼音
*/
function getPinYin($title) {
$title = trim($title);
vendor("pinyin");
$pinyin = new pinyin();
if (preg_match_all('/^[0-9a-zA-Z]{1,}$/', $title, $match)) {
$pinyinString = $title;
} else {
$data = $pinyin->get($title, 'utf8');
$pinyinString = $data['res'];
//$short_py = $this->data['short_res'];
}
return $pinyinString;
}
/**
* json格式验证
*/
function analyJson($json_str) {
$json_str = str_replace('＼＼', '', $json_str);
$out_arr = array();
preg_match('/{.*}/', $json_str, $out_arr);
if (!empty($out_arr)) {
$result = json_decode($out_arr[0], TRUE);
return $result;
}
return false;
}
/**
* 过滤掉emoji表情
*/
function filterEmoji($str) {
$str = preg_replace_callback(
'/./u', function (array $match) {
return strlen($match[0]) >= 4 ? '' : $match[0];
}, $str);
return $str;
}
/**
* 判断字符串是否为英文、空格、下划线组成
*/
function judge_eng_str($str) {
if (preg_match('/^[a-zA-Z_\s]+$/', $str)) {
return true;
}
return false;
}
/**
* 返回日期连接符（生成证书时）
*/
function date_connector_sel($date_connector) {
$date_connector_arr = array(
'1' => '-',
'2' => '&',
);
if (array_key_exists($date_connector, $date_connector_arr)) {
return $date_connector_arr[$date_connector];
} else {
return '-';
}
}