Blog drainage public account automatically generates verification code: WeChat public platform verification code view plug-in

Father shared it before Three ways to realize the flow of blog public accounts , including the plug-in that uses keywords to reply and obtain passwords. However, the verification code of that plug-in was manually entered by the webmaster. The one recommended today is to automatically generate and obtain verification codes, realizing the function of automatic replacement and drainage of verification codes.

The plug-in code is as follows:

 <? php /* Plugin Name: WeChat public platform verification code view plug-in Plugin URI:  https://gitcafe.net/ Description: WeChat public platform verification code visible plug-in, interface address: domain name? wxcaptcha  , Actually, it's casual Version: 1.0 Author: Cloudfall Author URI:  https://gitcafe.net/ */ //This token must be consistent with the settings in WeChat public platform define('WX_TOKEN', ''); define('WX_QR', '');// QR code of public account //The following contents do not need to be changed /***WeChat start***/ class Wechat_Captcha { function __construct($wx_captcha) { $this->captcha = $wx_captcha; } private function checkSignature() { $signature = $_GET["signature"]; $timestamp = $_GET["timestamp"]; $nonce = $_GET["nonce"]; $token = WX_TOKEN; $tmpArr = array($token, $timestamp, $nonce); sort($tmpArr, SORT_STRING); $tmpStr = implode($tmpArr); $tmpStr = sha1($tmpStr); if ($tmpStr == $signature) return true; else return false; } protected function valid() { $echoStr = $_GET["echostr"]; //valid signature , option if ($this->checkSignature()) { echo $echoStr; exit; } else { echo 'error signature'; } } public function responseMsg() { //If it is a verification request, perform signature verification and exit if (! empty($_GET["echostr"])) { $this->valid(); //Verify whether the signature is valid return; //Return to Exit } if ($_SERVER['REQUEST_METHOD'] != ' POST') { echo ''; return; } //If it is not a validation request, then //First, get the original POST data (XML format) //$postData = $GLOBALS["HTTP_RAW_POST_DATA"]; $postData = file_get_contents(' php://input '); if (empty($postData)) { echo ''; return; } //If there is no POST data, exit if (! empty($postData)) { //Parse POST data (XML format) $object = simplexml_load_string($postData, 'SimpleXMLElement', LIBXML_NOCDATA); $messgeType = trim($object->MsgType);// Get message type $this->fromUser = "" . $ object->FromUserName; $this->toUser = "" . $ object->ToUserName; $keyword = trim($object->Content); If ($messgeType=='text'&&$keyword=='verification code'){ $response_content='Your verification code is: ['. $this ->captcha. '], and the validity of the verification code is 2 minutes. Please use it quickly, and apply again after expiration'; $xmlTemplate = "<xml> <ToUserName><! [CDATA[%s]]></ToUserName> <FromUserName><! [CDATA[%s]]></FromUserName> <CreateTime>%s</CreateTime> <MsgType><! [CDATA[text]]></MsgType> <Content><! [CDATA[%s]]></Content> <FuncFlag>%d</FuncFlag> </xml>"; $xmlText = sprintf($xmlTemplate, $this->fromUser, $this->toUser, time(), $response_content, 0); echo $xmlText; } } else { echo ""; exit; } } } //class end //Generate WeChat verification code function wx_captcha(){ date_default_timezone_set('Asia/Shanghai'); $min = floor(date("i")/2); $day = date("d"); $day = ltrim($day,0); $url = home_url(); $captcha = sha1($min.$url.WX_TOKEN); $captcha = substr($captcha , $day , 6); return $captcha; } function wx_process() { global $object; $object = new Wechat_Captcha(wx_captcha()); $object->responseMsg(); return; } add_action('pre_get_posts', 'wx_process', 4); /***WeChat end***/ /***WP end start***/ //Password Visible function wx_captcha_view() { $action = $_POST['action']; $post_id = $_POST['id']; $pass = $_POST['pass']; $wxcaptcha = wx_captcha(); if(! isset( $action )  ||  ! isset( $post_id )  ||  ! isset( $pass )   ) exit('400'); if($pass == $wxcaptcha ) { $pass_content = get_post_meta($post_id, '_pass_content')[0]; exit($pass_content); }else{ exit('400'); } } add_action('wp_ajax_nopriv_gdk_pass_view', 'wx_captcha_view'); add_action('wp_ajax_gdk_pass_view', 'wx_captcha_view'); //Some contents are visible after entering the password function gdk_secret_view($atts, $content = null) { $pid = get_the_ID(); add_post_meta($pid, '_pass_content', $content, true) or update_post_meta($pid, '_pass_content', $content); if ( current_user_can( 'administrator' ) ) { return $content; }//admin show return '<link rel="stylesheet" id="pure_css-css"  href=" https://cdn.jsdelivr.net/npm/css-mint @2.0.7/build/css-mint.min.css? ver=0.0.1" type="text/css"/> <div class="cm-grid cm-card pass_viewbox"> <div class="cm-row"> <div class="cm-col-md-4"> <img src="'.WX_QR.'" class="cm-resp-img"> </div> <div class="cm-col-md-8"> <div class="hide_content_info" style="margin:10px 0"> <div class="cm alert primary">The content of this section has been hidden. You need to scan the code to follow the WeChat official account to apply for verification code, and send [verification code] to obtain the verification code. The verification code is valid for 2 minutes</div> <input type="text" id="pass_view" placeholder="Enter the verification code and submit it" style="width: 70%">&nbsp& nbsp;<input id="submit_pass_view" class="cm-btn success" data-action="gdk_pass_view" data-id="'.$ Pid. '"type=" button "value=" Submit "> </div> </div> </div> </div> <script type="text/javascript" src=" https://cdn.jsdelivr.net/npm/jquery @2.1.0/dist/jquery.min.js? ver=2.1"></script> <script> function show_hide_content(a, b) { $(a).hide(); $(a).after("<div class=\"cm-alert success\">" + b + "</div>"); } /** *Click to open the password */ $("#submit_pass_view").click(function () { var ajax_data = { action: $("#submit_pass_view").data("action"), id: $("#submit_pass_view").data("id"), pass: $("#pass_view").val() }; $.post("'.admin_url( 'admin-ajax.php' ).'", ajax_data, function (c) { c = $.trim(c); if (c !==  "400") { show_hide_content(".pass_viewbox", c); LocalStorage. setItem ("gdk_pass_"+ajax_data ["id"], c)*/ } else { Alert ("Your password is wrong, please apply again"); } }); }); /** *Automatically read content from browser if password is visible *And display that a delay processing is added here */ (function () { If ($("# submit_pass_view"). length>0) {/* * Execute if the password is visible on the website*/ setTimeout(function () { var id = "gdk_pass_" + $("#submit_pass_view").data("id"), length = localStorage.length; for (var i = 0;  i < length; i++) { var key = localStorage.key(i), value = localStorage.getItem(key); If (key. indexOf (id)>=0) {/* Find target*/ show_hide_content(".pass_viewbox", value); break; } } }, 900); } }()); /**Password visible end*/ </script> '; } add_shortcode('wxcaptcha', 'gdk_secret_view'); //Buttons function wx_captcha_btn() { ?> <script type="text/javascript"> QTags. addButton ('wxcaptcha ',' WeChat official account verification code visible ',' [wxcaptcha] ',' [/wxcaptcha]  n ')// Quick Input Label </script> <? php } add_action('after_wp_tiny_mce', 'wx_captcha_btn'); /***WP end***/

There are two places you need to configure:

 //This token must be consistent with the settings in WeChat public platform define('WX_TOKEN', ''); define('WX_QR', '');// QR code of public account

One is wx_token, which can be obtained in the background of WeChat public account management, and the other is the QR code image address of your public account.

Download address

usage method:

1. Download and install plug-ins

2. Modify the values of wx_token and wx_qr of the plug-in.

3. Post articles with short codes [wxcaptcha] and [/wxcaptcha] to wrap the content that needs to be hidden.

Author publishing address: https://gitcafe.net/archives/10584.html