微信第三方平臺開發詳解——PHP版

時間 2019-11-08

標籤微信第三方平臺開發詳解 php 欄目 PHP 简体版

原文原文鏈接

微信第三方平臺開發詳解之申請以及全網發佈流程 php

微信第三方平臺開發詳解之受權流程 node

微信第三方平臺開發詳解之代小程序開發 redis

申請第三方平臺，這個很簡單直接按照提示填寫，下面的受權事件接收URL中獲取的component_verify_ticket是會過時的，因此不要只獲取一次，緩存起來每10分鐘會發送一次，每1小時會更新一次。數據庫

附上個人獲取component_verify_ticket的代碼：我是緩存和數據庫都保存了json

微信有提供wxBizMsgCrypt.php加解密核心代碼小程序

/**
* 受權事件接收URL
* @access public
*
*/
public function sysMessage()
{
$wxComponentTicketModel = new \app\diuber\model\WxComponentTicket();

$encodingAesKey = $this->encodingAesKey;
$token = $this->token;
$appId = $this->appId;
$timeStamp = empty($_GET['timestamp']) ? "" : trim($_GET['timestamp']) ;
$nonce = empty($_GET['nonce']) ? "" : trim($_GET['nonce']) ;
$msg_sign = empty($_GET['msg_signature']) ? "" : trim($_GET['msg_signature']) ;
$encryptMsg = file_get_contents('php://input', 'r');

libxml_disable_entity_loader(true);
$result = json_decode(json_encode(simplexml_load_string($encryptMsg, 'SimpleXMLElement', LIBXML_NOCDATA)), true);

if(config('redis_set')['use_status']){
$redis = $wxComponentTicketModel->initializeRedis();
$redis->set('wx_component_verify_ticket_xml',$encryptMsg);
}

$pc = new \WXBizMsgCrypt($token, $encodingAesKey, $appId);

$xml_tree = new \DOMDocument();
$xml_tree->loadXML($encryptMsg);
$array_e = $xml_tree->getElementsByTagName('Encrypt');
$encrypt = $array_e->item(0)->nodeValue;


$format = "<xml><ToUserName><![CDATA[toUser]]></ToUserName><Encrypt><![CDATA[%s]]></Encrypt></xml>";
$from_xml = sprintf($format, $encrypt);

// 第三方收到公衆號平臺發送的消息
$msg = '';
$errCode = $pc->decryptMsg($msg_sign, $timeStamp, $nonce, $from_xml, $msg);
if ($errCode == 0) {
//print("解密後: " . $msg . "\n");
$xml = new \DOMDocument();
$xml->loadXML($msg);
$array_e = $xml->getElementsByTagName('ComponentVerifyTicket');
$component_verify_ticket = $array_e->item(0)->nodeValue;

//logResult('解密後的component_verify_ticket是：'.$component_verify_ticket);

$dateline = time();

$data = array(
'app_id' => $result['AppId'],
'encrypt' => $result['Encrypt'],
'create_time' => $dateline + 600,
//'info_type' => $result['AppId'],
'component_verify_ticket' => $component_verify_ticket,
'time' => date('Y-m-d H:i:s')
);

if(config('redis_set')['use_status']){
$redis = $wxComponentTicketModel->initializeRedis();
$redis->set('wx_component_verify_ticket',json_encode($data));
}

$existComponentTicke = $wxComponentTicketModel->get(array('component_verify_ticket'=>$component_verify_ticket));
if(!$existComponentTicke){
$wx = $wxComponentTicketModel->create($data);
if($wx){
echo 'success';
exit;
}else{
echo 'fail';
exit;
}
}else{
echo 'success';
exit;
}
}else{
echo 'fail';
exit;
}
}api

地址：https://open.weixin.qq.com/cgi-bin/showdocument?action=dir_list&t=resource/res_list&verify=1&id=open1419318479&token=bc7c35421376903886e43747e4bf165c9be36663&lang=zh_CN緩存

公衆號消息與事件接收URL，直接上代碼：微信

這個方法處理3中不一樣的事件推送，app

1.MsgType爲text類型，而且Content信息爲‘QUERY_AUTH_CODE：xxxxxxxxx’：須要經過接口’https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=xxx ’POST回覆過去。

2.MsgType爲text類型，而且Content信息爲‘TESTCOMPONENT_MSG_TYPE_TEXT’：須要把Content信息改成‘TESTCOMPONENT_MSG_TYPE_TEXT_callback’而後加密return

3.MsgType爲event類型：須要注意的是當MsgType爲event類型時是沒有Content信息的會增長一個Event的字段，這裏只要獲取到Event而後在後面加上‘from_callback’保存爲Content字段信息，統一加密return。

具體邏輯看代碼

/**
* 公衆號消息與事件接收URL
* @access public
*
*/
public function callback()
{
$wxComponentTicketModel = new \app\diuber\model\WxComponentTicket();
$wxCallbackModel = new \app\diuber\model\WxCallback();
$wxAccessTokenModel = new \app\diuber\model\WxAccessToken();

$encodingAesKey = $this->encodingAesKey;
$token = $this->token;
$appId = $this->appId;
$timeStamp = empty($_GET['timestamp']) ? "" : trim($_GET['timestamp']) ;
$nonce = empty($_GET['nonce']) ? "" : trim($_GET['nonce']) ;
$msg_sign = empty($_GET['msg_signature']) ? "" : trim($_GET['msg_signature']) ;

$encryptMsg = file_get_contents('php://input');
$pc = new \WXBizMsgCrypt($token, $encodingAesKey, $appId);

$xml_tree = new \DOMDocument();
$xml_tree->loadXML($encryptMsg);
$array_e = $xml_tree->getElementsByTagName('Encrypt');
$encrypt = $array_e->item(0)->nodeValue;


$format = "<xml><ToUserName><![CDATA[toUser]]></ToUserName><Encrypt><![CDATA[%s]]></Encrypt></xml>";
$from_xml = sprintf($format, $encrypt);

// 第三方收到公衆號平臺發送的消息
$msg = '';
$errCode = $pc->decryptMsg($msg_sign, $timeStamp, $nonce, $from_xml, $msg);
if ($errCode == 0) {
$xml = new \DOMDocument();
$xml->loadXML($msg);

$array_e2 = $xml->getElementsByTagName('ToUserName');
$ToUserName = $array_e2->item(0)->nodeValue;
$array_e3 = $xml->getElementsByTagName('FromUserName');
$FromUserName = $array_e3->item(0)->nodeValue;
$array_e5 = $xml->getElementsByTagName('MsgType');
$MsgType = $array_e5->item(0)->nodeValue;
$nowTime = date('Y-m-d H:i:s');
$contentx = '';


if($MsgType=="text") {
$array_e = $xml->getElementsByTagName('Content');
$content = $array_e->item(0)->nodeValue;
$needle ='QUERY_AUTH_CODE:';
$tmparray = explode($needle,$content);
if(count($tmparray) > 1){
//三、模擬粉絲髮送文本消息給專用測試公衆號，第三方平臺方需在5秒內返回空串
//代表暫時不回覆，而後再當即使用客服消息接口發送消息回覆粉絲
$contentx = str_replace ($needle,'',$content);
$info = $wxAccessTokenModel->getMiniAppInfo($contentx);
$test_token = $info['info']['authorizer_access_token'];
$content_re = $contentx."_from_api";
echo '';
$data = '{
"touser":"'.$FromUserName.'",
"msgtype":"text",
"text":
{
"content":"'.$content_re.'"
}
}';
$url = "https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=".$test_token;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_exec($ch);
curl_close($ch);
}else{
//二、模擬粉絲髮送文本消息給專用測試公衆號
$contentx = "TESTCOMPONENT_MSG_TYPE_TEXT_callback";
}
}elseif($MsgType == "event"){ //一、模擬粉絲觸發專用測試公衆號的事件
$array_e4 = $xml->getElementsByTagName('Event');
$event = $array_e4->item(0)->nodeValue;
$contentx = $event.'from_callback';
}

$text = "<xml>
<ToUserName><![CDATA[$FromUserName]]></ToUserName>
<FromUserName><![CDATA[$ToUserName]]></FromUserName>
<CreateTime>$nowTime</CreateTime>
<MsgType><![CDATA[text]]></MsgType>
<Content><![CDATA[$contentx]]></Content>
</xml>";

//加密消息
$encryptMsg = '';
$errCode = $pc->encryptMsg($text, $timeStamp, $nonce, $encryptMsg);

$wxCallbackModel->create(array('from_user_name'=>$FromUserName,'to_user_name'=>$ToUserName,'msg_type'=>$MsgType,'content'=>$contentx,'create_time'=>$timeStamp));
echo $encryptMsg;
exit();
} else {
if(config('redis_set')['use_status']){
$redis = $wxComponentTicketModel->initializeRedis();
$redis->set('wx_call_back_err',$errCode);
}
exit();
}
}