lcc
291 lines
10 KiB
PHP
291 lines
10 KiB
PHP
<?php
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/**
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* 仅限缓存微信参数
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* Created by PhpStorm.
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* User: xuxb
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* Date: 2020/9/14
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* Time: 10:47
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*/
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class Hd_wechat
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{
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private $log_dir;
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private $env;
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private $access_token;
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private $api_ticket;
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private $redis;
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public $appid;
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public $secret;
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public $url_wechat;//线上微信接口地址
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function __construct($param = array())
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{
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//获取环境
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if (false !== strpos($_SERVER['HTTP_HOST'], 'dev')) { //dev 测试
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$this->env = 'd';
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} elseif (false !== strpos($_SERVER['HTTP_HOST'], 'api.ss.haodian.cn')) {//test 测试
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$this->env = 't';
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} else { // 正式
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$this->env = 'p';
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}
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if ('p' != $this->env) {
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$this->url_wechat = 'https://sapi.liche.cn/weixin';
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}
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$this->redis = &load_cache('redis');
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$param && $this->init($param);
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}
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/**
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* 初始化
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* @param $param
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*/
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function init($param)
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{
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$this->appid = $param['appid'];
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$this->secret = $param['secret'];
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$this->log_dir = "libraries_wechat_{$this->appid}";
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}
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/**
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* 获取或者重置access_token
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* @param $reset (是否重置)
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* @return mixed
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*/
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function access_token($reset = false)
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{
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$redis = $this->redis;
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$key = "wechat_access_token_{$this->appid}";
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debug_log("[info]: appid={$this->appid}", __FUNCTION__, $this->log_dir);
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$func = __FUNCTION__;
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if (!$reset) {//不重置
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if ($this->access_token) {
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$access_token = $this->access_token;
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} elseif ($this->url_wechat) {//从线上获取access_token
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$url = $this->url_wechat . "/{$func}?appid={$this->appid}&secret={$this->secret}";
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$res = $this->http_get($url);
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$ret = json_decode($res, true);
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$access_token = $ret['access_token'];
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if (!$access_token) {
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debug_log("[warning]# res={$res}; url={$url}", __FUNCTION__, $this->log_dir);
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}
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} else {//缓存中获取
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$access_token = $redis->get($key);
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}
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if ($access_token) {
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return $access_token;
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}
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}
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//重置access_token,第三方的不处理
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if ($this->url_wechat) {
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$url = $this->url_wechat . "/{$func}?appid={$this->appid}&secret={$this->secret}&reset=1";
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} else {
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$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$this->appid}&secret={$this->secret}";
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}
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$res = $this->http_get($url);
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$ret = json_decode($res, true);
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$access_token = $ret['access_token'];
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if ($access_token) {
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//线上环境才缓存
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'p' == $this->env && $redis->save($key, $access_token, 7000);
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} else {
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debug_log("[warning]# res={$res}; url={$url}", __FUNCTION__, $this->log_dir);
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}
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$this->access_token = $access_token;
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return $access_token;
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}
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/**
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* 分享票据
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* @param bool $reset "是否重置"
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* @return mixed
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*/
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function api_ticket($reset = false)
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{
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$redis = $this->redis;
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$key = 'wechat_jsApiTicket_' . $this->appid;
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$func = __FUNCTION__;
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if (!$reset) {//不重置
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if ($this->api_ticket) {
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$api_ticket = $this->api_ticket;
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} elseif ($this->url_wechat) {//从线上获取ticket
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$url = $this->url_wechat . "/{$func}?appid={$this->appid}&secret={$this->secret}";
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$res = $this->http_get($url);
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$ret = json_decode($res, true);
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$api_ticket = $ret['api_ticket'];
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if (!$api_ticket) {
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debug_log("[warning]# res={$res}; url={$url}", __FUNCTION__, $this->log_dir);
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}
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} else {//缓存中获取
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$api_ticket = $redis->get($key);
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}
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if ($api_ticket) {
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return $api_ticket;
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}
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}
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//重置
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if ($this->url_wechat) {//从线上重置获取ticket
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$url = $this->url_wechat . "/{$func}?appid={$this->appid}&secret={$this->secret}&reset=1";
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$res = $this->http_get($url);
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$ret = json_decode($res, true);
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} else {
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$access_token = $this->access_token();
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$url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token={$access_token}";
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$res = $this->http_get($url);
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$ret = json_decode($res, true);
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if (!$ret['ticket']) {
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debug_log("[warning]# res={$res}; url={$url}", __FUNCTION__, $this->log_dir);
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//可能是access_token过期，重置获取一下
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$access_token = $this->access_token(true);
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$url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token={$access_token}";
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$res = $this->http_get($url);
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$ret = json_decode($res, true);
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}
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}
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$api_ticket = $ret['ticket'];
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if ($api_ticket) {
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//线上环境才缓存
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'p' == $this->env && $redis->save($key, $api_ticket, 7000);
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} else {
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debug_log("[warning]# res={$res}; url={$url}", __FUNCTION__, $this->log_dir);
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}
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$this->api_ticket = $api_ticket;
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return $api_ticket;
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}
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/**
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* 生成二维码
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* @param $filename (文件名称)
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* @param $scene (最大32个可见字符，只支持数字，大小写英文以及部分特殊字符：!#$&'()*+,/:;=?@-._~，其它字符请自行编码为合法字符（因不支持%，中文无法使用 urlencode 处理，请使用其他编码方式)
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* @param $page (必须是已经发布的小程序存在的页面（否则报错），例如 pages/index/index, 根路径前不要填加 /,不能携带参数（参数请放在scene字段里），如果不填写这个字段，默认跳主页面)
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* @param $width (二维码的宽度，单位 px，最小 280px，最大 1280px，默认430px)
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* @return array {'file':'文件路径', 'url':'访问相对路径'}
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*/
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function qrcode($filename, $scene, $page, $width)
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{
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$access_token = $this->access_token();
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if (!$access_token) {
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debug_log("[error] " . __FUNCTION__ . ": not access_token", $this->log_dir);
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return ['code' => 0, 'msg' => '获取微信token失败'];
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}
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$pre_url = 'https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=';
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$url = $pre_url . $access_token;
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$data = array(
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'scene' => $scene,
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'page' => $page,
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'width' => $width ? $width : 430,
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);
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list($code, $res) = $this->http_post($url, $data);
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$ret = json_decode($res, true);
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if (isset($ret['errcode']) && 40001 == $ret['errcode']) {//token过期,重置后请求
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$url = $pre_url . $this->access_token(true);
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list($code, $res) = $this->http_post($url, $data);
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$ret = json_decode($res, true);
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}
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if (isset($ret['errcode'])) {
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debug_log("[error] " . __FUNCTION__ . ": httpcode:{$code}, response:{$res}, filename:{$filename}, scene:{$scene}, page:{$page}, width:{$width}", $this->log_dir);
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return ['code' => 0, 'msg' => $res['errcode']];
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}
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if ($filename) { //保存图片
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$file = APPPATH . '../www/api/wx/' . $filename . '.png';
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$dir = substr($file, 0, strrpos($file, '/'));
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if (!is_dir($dir)) {
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$ret = mkdir($dir, 0777, true);// 如果文件夹不存在，将以递归方式创建该文件夹
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if (!$ret) {
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debug_log("[error] " . __FUNCTION__ . ": mkdir {$ret}, filename:{$filename}, scene:{$scene}, page:{$page}, width:{$width}", $this->log_dir);
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return ['code' => 0, 'msg' => '创建文件夹失败'];
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}
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}
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if (file_exists($file)) {
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return array('code' => 1, 'file' => $file, 'url' => 'wx/' . $filename . '.png');
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}
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$ret = file_put_contents($file, $res);
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if (false === $ret) {
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debug_log("[error] " . __FUNCTION__ . ": file_put_contents {$ret}, filename:{$filename}, scene:{$scene}, page:{$page}, width:{$width}", $this->log_dir);
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return ['code' => 0, 'msg' => '保存图片失败'];
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}
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return ['code' => 1, 'file' => $file, 'url' => 'wx/' . $filename . '.png'];
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} else { //不保存图片
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return ['code' => 1, 'file' => $res];
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}
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}
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/**
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* @param $url
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* @return mixed
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*/
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private function http_get($url)
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{
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$curl = curl_init();
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curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($curl, CURLOPT_TIMEOUT, 500);
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curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, true);
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curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, true);
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curl_setopt($curl, CURLOPT_URL, $url);
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$res = curl_exec($curl);
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$code = curl_getinfo($curl, CURLINFO_HTTP_CODE);
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curl_close($curl);
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if (200 != $code) {
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$size = strlen($res);
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if ($size > 5000) {
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debug_log("[info]# httpcode={$code}, response is big only show size={$size}", __FUNCTION__, $this->log_dir);
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} else {
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debug_log("[info]# httpcode={$code}, response={$res}", __FUNCTION__, $this->log_dir);
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}
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return "";
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}
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return $res;
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}
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/**
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* @param $url
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* @param $data
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* @return array
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*/
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private function http_post($url, $data)
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{
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debug_log("[info] " . __FUNCTION__ . ":url={$url}, data=" . json_encode($data), $this->log_dir);
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$ch = curl_init();
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curl_setopt($ch, CURLOPT_URL, $url);
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curl_setopt($ch, CURLOPT_POST, 1);
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curl_setopt($ch, CURLOPT_HEADER, 0);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
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curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
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$res = curl_exec($ch);
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$code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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curl_close($ch);
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$size = strlen($res);
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if ($size > 5000) {
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debug_log("[info] " . __FUNCTION__ . ":httpcode={$code}, response is big only show size={$size}", $this->log_dir);
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} else {
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debug_log("[info] " . __FUNCTION__ . ":httpcode={$code}, response={$res}", $this->log_dir);
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}
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return array($code, $res);
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}
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}
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