// GET variables: timestamp, nonce, msg_signature, encrypt_type
extract($_GET);
if (isset($echostr)) {
// for wechat API validation
if ($wechat->validateAPI($echostr, $signature, $timestamp, $nonce)) {
die($echostr);
} else {
throw new Exception('API validate failed');
}
}
// get POST data, request message from WeChat
$raw_data = isset($GLOBALS["HTTP_RAW_POST_DATA"]) ? $GLOBALS["HTTP_RAW_POST_DATA"] : '';
if (!empty($raw_data)) {
# decrypt message
$dataArr = array('raw_data' => $raw_data, 'encrypt_type' => isset($encrypt_type) && $encrypt_type == 'aes' ? "aes" : "raw", 'msg_signature' => $msg_signature, 'timestamp' => $timestamp, 'nonce' => $nonce);
$result = $wechat->decryptMessage($dataArr);
if ($result['hasError']) {
// decryption failed
die;
}
$postArr = $result['postArr'];
$encrypt_array = array('encrypt_type' => $encrypt_type, 'responseXML' => '', 'timestamp' => $timestamp, 'nonce' => $nonce);
if ($postArr['MsgType'] == $wechat::MSGTYPE_EVENT && $postArr['Event'] == $wechat::EVENT_SEND_MASS) {
include_once '../snippet/process_massSend.php';
die;
}
switch ($postArr['MsgType']) {
case $wechat::MSGTYPE_TEXT:
include_once '../snippet/process_keyword.php';
include_once '../snippet/process_text.php';
include_once '../snippet/response_keyword.php';