小程序接入客服消息
1、消息推送配置
填写URL、Token等。
特别要注意的是：数据格式的选择；
为了后续其他信息能够转发回微信自有网页版客服消息平台，建议选择xml格式。
json格式现在还有bug(2018.3.5)，
bug主要原因返回的头部不符合http标准。
返回json格式header头应该是
Content-Type:application/json,而微信的选json还是
Content-Type:text/xml，2、代码如下，直接改改就能用(这里用的php)
<?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>';
}
}
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