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官网的Python示例版本是python2改成python3版本,兼容中文python3.8.0下可用

pip install pycryptodome==3.9.4

WXBizMsgCrypt.py

#!/usr/bin/envpython#-*-encoding:utf-8-*-"""对公众平台发送给公众账号的消息加解密示例代码.@copyright:Copyright(c)1998-2014TencentInc."""#------------------------------------------------------------------------importbase64importstringimportrandomimporthashlibimporttimeimportstructfromCrypto.CipherimportAESimportxml.etree.cElementTreeasETimportsocketfrom.importierror"""关于Crypto.Cipher模块，ImportError:Nomodulenamed'Crypto'解决方案请到官方网站www.dlitz.net/software/pycrypto/下载pycrypto。下载后，按照README中的“Installation”小节的提示进行pycrypto安装。"""classFormatException(Exception):passdefthrow_exception(message,exception_class=FormatException):"""mydefineraiseexceptionfunction"""raiseexception_class(message)classSHA1:"""计算公众平台的消息签名接口"""defgetSHA1(self,token,timestamp,nonce,encrypt):"""用SHA1算法生成安全签名@paramtoken:票据@paramtimestamp:时间戳@paramencrypt:密文@paramnonce:随机字符串@return:安全签名"""try:sortlist=[token,timestamp,nonce,encrypt]sortlist.sort()sha=hashlib.sha1()sha.update(("".join(sortlist)).encode())returnierror.WXBizMsgCrypt_OK,sha.hexdigest()exceptExceptionase:returnierror.WXBizMsgCrypt_ComputeSignature_Error,NoneclassXMLParse:"""提供提取消息格式中的密文及生成回复消息格式的接口"""#xml消息模板AES_TEXT_RESPONSE_TEMPLATE="""%(timestamp)s"""defextract(self,xmltext):"""提取出xml数据包中的加密消息@paramxmltext:待提取的xml字符串@return:提取出的加密消息字符串"""try:xml_tree=ET.fromstring(xmltext)encrypt=xml_tree.find("Encrypt")returnierror.WXBizMsgCrypt_OK,encrypt.textexceptExceptionase:print(e)returnierror.WXBizMsgCrypt_ParseXml_Error,None,Nonedefgenerate(self,encrypt,signature,timestamp,nonce):"""生成xml消息@paramencrypt:加密后的消息密文@paramsignature:安全签名@paramtimestamp:时间戳@paramnonce:随机字符串@return:生成的xml字符串"""resp_dict={'msg_encrypt':encrypt,'msg_signaturet':signature,'timestamp':timestamp,'nonce':nonce,}resp_xml=self.AES_TEXT_RESPONSE_TEMPLATE%resp_dictreturnresp_xmlclassPKCS7Encoder():"""提供基于PKCS7算法的加解密接口"""block_size=32defencode(self,bytes):"""对需要加密的明文进行填充补位@paramtext:需要进行填充补位操作的明文@return:补齐明文字符串"""text_length=len(bytes)#计算需要填充的位数amount_to_pad=self.block_size-(text_length%self.block_size)ifamount_to_pad==0:amount_to_pad=self.block_size#获得补位所用的字符pad=chr(amount_to_pad).encode()returnbytes+pad*amount_to_paddefdecode(self,decrypted):"""删除解密后明文的补位字符@paramdecr