在测试的时候遇到很多问题,注意回调地址“http://test.com/dingding”是错误的,需要改成 “http://test.com/dingding/”;提示“返回文本非success”一般是加密的方式不对。回调接口返回给钉钉的json数据,需要对success按相关算法生成encrypt。完了还得生成消息体签名 msg_signature ;在返回success加密中的“ msg_len为4字节的msg长度,网络字节序; ”还是没搞明白,但是本文使用php版的sdk可以不用考虑具体的过程调用就行。
可以下载官方的demo修改:
php库和demo: 库地址:https://github.com/injekt/openapi-demo-php/tree/master/isv/crypto
demo地址:https://github.com/injekt/openapi-demo-php/blob/master/isv/receive.php
官方的demo会在php7中报错,主要是构造类,改为__construct就可以了
function __construct($k){$this->key = base64_decode($k . "="); //为变量赋值}/* function Prpcrypt($k){$this->key = base64_decode($k . "=");}*/
下面直接上源码。
一、文件 regist.php(第一次访问本文件以注册) index.php用于回调的地址,注册回调地址时阿里会访问该地址,并回传阿里一个经过加密的success信息 DingtalkCrypt.php、errorCode.php、pkcs7Encoder.php、sha1.php
<?php//regist.phpinclude "TopSdk.php";// 需要下载钉钉的sdk包//////////////////开始之前需要参考钉钉开发接口先获取到accesstoken$c = new DingTalkClient(DingTalkConstant::$CALL_TYPE_OAPI, DingTalkConstant::$METHOD_POST , DingTalkConstant::$FORMAT_JSON);$req = new OapiCallBackRegisterCallBackRequest;$req->setUrl("https://www.testweb.cn/dingding/");//接收事件回调的url,必须是公网可以访问的url地址$aes_key="123456789012345678901234567890aq";$aes_key_encode=base64_encode($aes_key);$aes_key_encode=substr($aes_key_encode,0,-1);//去掉= 号$req->setAesKey($aes_key_encode);// 数据加密密钥。用于回调数据的加密,长度固定为43个字符,从a-z, A-Z, 0-9共62个字符中选取,您可以随机生成,ISV(服务提供商)推荐使用注册套件时填写的EncodingAESKey$req->setToken("123456");$list=array(0=>'user_add_org',1=>'user_modify_org',2=>'user_leave_org');$req->setCallBackTag(json_encode($list));//call_back_tag Array[String] 需要监听的事件类型$resp=$c->execute($req,$accessToken, "https://oapi.dingtalk.com/call_back/register_call_back");//$resp->errcode==0?'':die('注册接口失败'.json_encode($resp));var_dump($resp);
<?php//index.php 用于处理回调$corpId='dingf3b97f65az9685fd35c2f4357ebt378f';//必填,企业ID$aes_key="123456789012345678901234567890aq";$aes_key_encode=base64_encode($aes_key);$aes_key_encode=substr($aes_key_encode,0,-1);//去掉= 号$signature=$_GET['signature'];$timeget=$_GET['timestamp'];$nonce=$_GET['nonce'];$str= 'success';$token="123456";/*msg_encrypt = Base64_Encode( AES_Encrypt[random(16B) + msg_len(4B) + msg + $key] )。AES加密的buf由16个字节的随机字符串、4个字节的msg长度、明文msg和$key组成。其中msg_len为msg的字节数,网络字节序。对于ISV开发来说,$key填写对应的suiteKey。对于定制服务商开发来说,$key填写对应的customKey。对于企业内部开发来说,$key填写企业的Corpid。*/include "TopSdk.php";include('DingtalkCrypt.php');$suiteKey=$corpId;$msg=$str;$timeStamp=$timeget;$encryptMsg = "";$crypt = new DingtalkCrypt($token, $aes_key_encode, $suiteKey); //token是注册接口时的随机字符串 regist.php与index.php 这里都使用'123456',两个文件的token要一样$res = $crypt->EncryptMsg($msg, $timeStamp, $nonce, $encryptMsg);//var_dump($res);//返回的字符串已经base64encode过了echo $res;
<?php//DingtalkCrypt.phpinclude_once "sha1.php";include_once "pkcs7Encoder.php";include_once "errorCode.php";class DingtalkCrypt{private $m_token;private $m_encodingAesKey;private $m_suiteKey;/* public function DingtalkCrypt($token, $encodingAesKey, $suiteKey){$this->m_token = $token;$this->m_encodingAesKey = $encodingAesKey;$this->m_suiteKey = $suiteKey;}*/function __construct($token, $encodingAesKey, $suiteKey){$this->m_token = $token;$this->m_encodingAesKey = $encodingAesKey;$this->m_suiteKey = $suiteKey;}public function EncryptMsg($plain, $timeStamp, $nonce, &$encryptMsg){$pc = new Prpcrypt($this->m_encodingAesKey);$array = $pc->encrypt($plain, $this->m_suiteKey);$ret = $array[0];if ($ret != 0) {return $ret;}if ($timeStamp == null) {$timeStamp = time();}$encrypt = $array[1];$sha1 = new SHA1;$array = $sha1->getSHA1($this->m_token, $timeStamp, $nonce, $encrypt);$ret = $array[0];if ($ret != 0) {return $ret;}$signature = $array[1];$encryptMsg = json_encode(array("msg_signature" => $signature,"encrypt" => $encrypt,"timeStamp" => $timeStamp,"nonce" => $nonce));// return ErrorCode::$OK;return $encryptMsg;}public function DecryptMsg($signature, $timeStamp = null, $nonce, $encrypt, &$decryptMsg){if (strlen($this->m_encodingAesKey) != 43) {return ErrorCode::$IllegalAesKey;}$pc = new Prpcrypt($this->m_encodingAesKey);if ($timeStamp == null) {$timeStamp = time();}$sha1 = new SHA1;$array = $sha1->getSHA1($this->m_token, $timeStamp, $nonce, $encrypt);$ret = $array[0];if ($ret != 0) {return $ret;}$verifySignature = $array[1];if ($verifySignature != $signature) {return ErrorCode::$ValidateSignatureError;}$result = $pc->decrypt($encrypt, $this->m_suiteKey);if ($result[0] != 0) {return $result[0];}$decryptMsg = $result[1];return ErrorCode::$OK;}}
<?php//errorCode.php/*** error code 说明.* <ul>* <li>-900004: encodingAesKey 非法</li>* <li>-900005: 签名验证错误</li>* <li>-900006: sha加密生成签名失败</li>* <li>-900007: aes 加密失败</li>* <li>-900008: aes 解密失败</li>* <li>-900010: suiteKey 校验错误</li>* </ul>*/class ErrorCode{public static $OK = 0;public static $IllegalAesKey = 900004;public static $ValidateSignatureError = 900005;public static $ComputeSignatureError = 900006;public static $EncryptAESError = 900007;public static $DecryptAESError = 900008;public static $ValidateSuiteKeyError = 900010;}?>
<?php//pkcs7Encoder.phpinclude_once "errorCode.php";class PKCS7Encoder{public static $block_size = 32;function encode($text){$block_size = PKCS7Encoder::$block_size;$text_length = strlen($text);$amount_to_pad = PKCS7Encoder::$block_size - ($text_length % PKCS7Encoder::$block_size);if ($amount_to_pad == 0) {$amount_to_pad = PKCS7Encoder::block_size;}$pad_chr = chr($amount_to_pad);$tmp = "";for ($index = 0; $index < $amount_to_pad; $index++) {$tmp .= $pad_chr;}return $text . $tmp;}function decode($text){$pad = ord(substr($text, -1));if ($pad < 1 || $pad > PKCS7Encoder::$block_size) {$pad = 0;}return substr($text, 0, (strlen($text) - $pad));}}class Prpcrypt{public $key;function __construct($k){$this->key = base64_decode($k . "="); //为变量赋值}/* function Prpcrypt($k){$this->key = base64_decode($k . "=");}*/public function encrypt($text, $corpid){try {//获得16位随机字符串,填充到明文之前$random = $this->getRandomStr();$text = $random . pack("N", strlen($text)) . $text . $corpid;// 网络字节序$size = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC);$module = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, '');$iv = substr($this->key, 0, 16);//使用自定义的填充方式对明文进行补位填充$pkc_encoder = new PKCS7Encoder;$text = $pkc_encoder->encode($text);mcrypt_generic_init($module, $this->key, $iv);//加密$encrypted = mcrypt_generic($module, $text);mcrypt_generic_deinit($module);mcrypt_module_close($module);//print(base64_encode($encrypted));//使用BASE64对加密后的字符串进行编码return array(ErrorCode::$OK, base64_encode($encrypted));} catch (Exception $e) {print $e;return array(ErrorCode::$EncryptAESError, null);}}public function decrypt($encrypted, $corpid){try {$ciphertext_dec = base64_decode($encrypted);$module = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, '');$iv = substr($this->key, 0, 16);mcrypt_generic_init($module, $this->key, $iv);$decrypted = mdecrypt_generic($module, $ciphertext_dec);mcrypt_generic_deinit($module);mcrypt_module_close($module);} catch (Exception $e) {return array(ErrorCode::$DecryptAESError, null);}try {//去除补位字符$pkc_encoder = new PKCS7Encoder;$result = $pkc_encoder->decode($decrypted);//去除16位随机字符串,网络字节序和AppIdif (strlen($result) < 16)return "";$content = substr($result, 16, strlen($result));$len_list = unpack("N", substr($content, 0, 4));$xml_len = $len_list[1];$xml_content = substr($content, 4, $xml_len);$from_corpid = substr($content, $xml_len + 4);} catch (Exception $e) {print $e;return array(ErrorCode::$DecryptAESError, null);}if ($from_corpid != $corpid)return array(ErrorCode::$ValidateSuiteKeyError, null);return array(0, $xml_content);}function getRandomStr(){$str = "";$str_pol = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz";$max = strlen($str_pol) - 1;for ($i = 0; $i < 16; $i++) {$str .= $str_pol[mt_rand(0, $max)];}return $str;}}?>
<?php//sha1.phpinclude_once "errorCode.php";class SHA1{public function getSHA1($token, $timestamp, $nonce, $encrypt_msg){try {$array = array($encrypt_msg, $token, $timestamp, $nonce);sort($array, SORT_STRING);$str = implode($array);return array(ErrorCode::$OK, sha1($str));} catch (Exception $e) {print $e . "\n";return array(ErrorCode::$ComputeSignatureError, null);}}}?>
如果一直返回非success,请确保页面没有其他输出,file_put_contents之类的函数也不要使用!切记,我就是使用了file_put_contents结果钉钉解密成功,加密的也能解密,返回的也是json字符串,但就是报错,直接注释该语句就行。可能是file_put_contents操作的文件被其他进程占用导致的。
如果上面还是解决不了,请把php的调试模式打开,显示所有的notice、warning、error信息,或者到网站错误日志里面去查找原因,把错误信息解决掉。
2 条评论
按照你的代码,注册好回调接口,只是在解密
$res = $crypt->DecryptMsg($signature, $timestamp, $nonce, $encrypt, $encryptMsg);
时候出现900005的错误,签名验证错误。请问这要怎样解决,试了好几天都没解决。请求帮助一下。
[…] php下使用钉钉回调的方法参考我之前的文章: https://ranjuan.cn/php7-0%E4%B8%8B%E9%92%89%E9%92%89%E5%9B%9E%E8%B0%83%E6%8E%A5%E5%8F%A3%E6%B3%A8%E5… […]