Mini Program Access Customer Service Message
1. Message push configuration
Fill in the URL, Token, etc.
Special attention should be paid to: the choice of data format;
In order to follow up other information can be forwarded back to WeChat's own web version customer service message platform, it is recommended to choose xml format.
The json format still has bugs (2018.3.5),
The main reason for the bug is that the header returned does not conform to the http standard.
The json format header should be
Content-Type:application/json,And the json of WeChat is still
Content-Type:text/xml，2. The code is as follows, you can use it directly by changing it (php used here)
<?php
define("TOKEN","你小程序自己设置的Token");//填写自己设置的Token
class wechatAPI{
const APP_ID = '你自己的appid';
const APP_SECRET = '你自己的appsecret';
//用于小程序第一步验证返回
public function isValid(){
$echoStr = $_GET["echostr"];
if ($this->checkSignature()) {
echo $echoStr;
exit;
}
}
public function checkSignature(){
$signature = $_GET["signature"];
$timestamp = $_GET["timestamp"];
$nonce = $_GET["nonce"];
$token = TOKEN;
$tmpArr = array($token, $timestamp, $nonce);
sort($tmpArr, SORT_STRING);
$tmpStr = implode( $tmpArr );
$tmpStr = sha1( $tmpStr );
if( $tmpStr == $signature ){
return true;
}else{
return false;
}
}
public function send($data){
$url = "https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=".$this->getAccessToken();
$data = urldecode(json_encode($data));
$this->curl_post($url,$data);
}
//xml数据转数组
public function xml2Array($contents = NULL, $encoding = 'UTF-8', $get_attributes = 1, $priority = 'tag'){
if (!$contents)
{
return array();
}
if (!function_exists('xml_parser_create'))
{
return array ();
}
$parser = xml_parser_create('');
xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, $encoding);
xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 1);
xml_parse_into_struct($parser, trim($contents), $xml_values);
xml_parser_free($parser);
if (!$xml_values)
return array();
$xml_array = array ();
$parents = array ();
$opened_tags = array ();
$arr = array ();
$current = & $xml_array;
$repeated_tag_index = array ();
foreach ($xml_values as $data)
{
unset ($attributes, $value);
extract($data);
$result = array ();
$attributes_data = array ();
if (isset ($value))
{
if ($priority == 'tag')
$result = trim($value);
else
$result['value'] = trim($value);
}
if (isset ($attributes) && $get_attributes) {
foreach ($attributes as $attr => $val)
{
if ($priority == 'tag')
$attributes_data[$attr] = $val;
else
$result['attr'][$attr] = $val; //Set all the attributes in a array called 'attr'
}
}
if ($type == "open")
{
$parent[$level -1] = & $current;
if (!is_array($current) || (!in_array($tag, array_keys($current)))) {
$current[$tag] = $result;
if ($attributes_data)
$current[$tag . '_attr'] = $attributes_data;
$repeated_tag_index[$tag . '_' . $level] = 1;
if (isset($tag) && $tag && isset($current[$tag])) {
$current = & $current[$tag];
}
}
else
{
if (isset ($current[$tag][0]))
{
$current[$tag][$repeated_tag_index[$tag . '_' . $level]] = $result;
$repeated_tag_index[$tag . '_' . $level]++;
}
else
{
$current[$tag] = array (
$current[$tag],
$result
);
$repeated_tag_index[$tag . '_' . $level] = 2;
if (isset ($current[$tag . '_attr']))
{
$current[$tag]['0_attr'] = $current[$tag . '_attr'];
unset ($current[$tag . '_attr']);
}
}
$last_item_index = $repeated_tag_index[$tag . '_' . $level] - 1;
$current = & $current[$tag][$last_item_index];
}
}
elseif ($type == "complete")
{
if (!isset ($current[$tag]))
{
$current[$tag] = $result;
$repeated_tag_index[$tag . '_' . $level] = 1;
if ($priority == 'tag' && $attributes_data) {
$current[$tag . '_attr'] = $attributes_data;
}
}
else
{
if (isset ($current[$tag][0]) && is_array($current[$tag])) {
$current[$tag][$repeated_tag_index[$tag . '_' . $level]] = $result;
if ($priority == 'tag' && $get_attributes && $attributes_data) {
$current[$tag][$repeated_tag_index[$tag . '_' . $level] . '_attr'] = $attributes_data;
}
$repeated_tag_index[$tag . '_' . $level]++;
}
else
{
$current[$tag] = array (
$current[$tag],
$result
);
$repeated_tag_index[$tag . '_' . $level] = 1;
if ($priority == 'tag' && $get_attributes) {
if (isset ($current[$tag . '_attr']) && is_array($current[$tag]))
{
$current[$tag]['0_attr'] = $current[$tag . '_attr'];
unset ($current[$tag . '_attr']);
}
if ($attributes_data)
{
$current[$tag][$repeated_tag_index[$tag . '_' . $level] . '_attr'] = $attributes_data;
}
}
$repeated_tag_index[$tag . '_' . $level]++; //0 and 1 index is already taken
}
}
}
elseif ($type == 'close')
{
$current = & $parent[$level -1];
}
}
return ($xml_array);
}
//获取accesstoken
public function getAccessToken() {
$tokenFile = "access_token.txt";
$data = json_decode(file_get_contents($tokenFile,FILE_USE_INCLUDE_PATH));
//accesstoken有效期是7200秒，这里用到的文件缓存
//注意：文件权限问题
if (!$data->expire_time || $data->expire_time < time()) {
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".self::APP_ID."&secret=".self::APP_SECRET;
$res = json_decode(file_get_contents($url));
if($res) {
$arr = array();
$access_token = $res->access_token;
$arr['expire_time'] = time() + 7000;
$arr['access_token'] = $access_token;
$fp = fopen($tokenFile, "w");
fwrite($fp, json_encode($arr));
fclose($fp);
}
} else {
$access_token = $data->access_token;
}
return $access_token;
}
//post发送json数据
public function curl_post($url,$post_data){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
$res = curl_exec($ch);
if(!$res){
throw new Exception('发送消息失败:'.curl_error($ch));
}
curl_close($ch);
}
};
$wechatObj = new wechatAPI();
//注意：第一步验证时打开，验证完成之后就可以注释了
// $wechatObj->isValid();
if($wechatObj->checkSignature() === true){
$xmlstring = file_get_contents("php://input");
$accept_info = $wechatObj->xml2Array($xmlstring)['xml'];
if($accept_info){
$ToUserName = $accept_info['ToUserName'];
$FromUserName = $accept_info['FromUserName'];
$CreateTime = $accept_info['CreateTime'];
$MsgType = $accept_info['MsgType'];
//$MsgId = $accept_info['MsgId'];
// $Encrypt = $accept_info['Encrypt'];
$data = array();
if($MsgType == 'text'){//接收文本
$Content = $accept_info['Content'];//文本内容
// "touser": "OPENID",
// "msgtype": "link",
// "link": {
// "title": "Happy Day",
// "description": "Is Really A Happy Day",
// "url": "URL",
// "thumb_url": "THUMB_URL"
// }
if($Content === '图文') {
$data['touser'] = $FromUserName;
$data['msgtype'] = 'link';
$data['link']['title'] = urlencode('文章标题');
$data['link']['description'] = urlencode('好文章要分享');
$data['link']['url'] = 'https://segmentfault.com';
$data['link']['thumb_url'] = 'https://static.segmentfault.com/v-5a7c12fe/global/img/logo-b.svg';
$wechatObj->send($data);exit;
}
//else if 可以做好多事
}else if($MsgType === 'image') {//接收图片
}else if($MsgType === 'event') {//进入客服窗口事件
$Event = $accept_info['Event'];
$SessionFrom = $accept_info['SessionFrom'];
if($Event == 'user_enter_tempsession') {
$data['touser'] = $FromUserName;
$data['msgtype'] = 'text';
$data['text']['content'] = urlencode('您好很高兴为您服务');//urlencode 解决中文乱码问题
$wechatObj->send($data);exit;
}
}
echo '<xml><ToUserName><![CDATA['.$FromUserName.']]></ToUserName><FromUserName><![CDATA['.$ToUserName.']]></FromUserName><CreateTime>'.$CreateTime.'</CreateTime><MsgType><![CDATA[transfer_customer_service]]></MsgType></xml>';
}
}