如何从 WSDL 文件构建一个肥皂服务器？

Question

我正在尝试从 WSDL 文件创建一个肥皂服务器。我正在使用 Python 3 和 Spyne 来生成它。 该服务器需要具体，因为客户端已经存在。 我需要我的 WSDL 请求如下所示

   <soapenv:Body>
      <pus:receiveEvents>
         <!--Optional:-->
         <eventQueryResult>
            <!--Optional:-->
            <queryId>?</queryId>
            <!--Optional:-->
            <queryStatus>?</queryStatus>
            <!--Zero or more repetitions:-->
            <events>
               <!--Optional:-->
               <eid>?</eid>
               <!--Optional:-->
               <eventMessage>?</eventMessage>
               <!--Optional:-->
               <eventSeverity>?</eventSeverity>
               <!--Optional:-->
               <eventTime>?</eventTime>
               <!--Optional:-->
               <eventTypeName>?</eventTypeName>
               <!--Optional:-->
               <meterId>?</meterId>
            </events>
            <subscriptionId>?</subscriptionId>
         </eventQueryResult>
      </pus:receiveEvents>
   </soapenv:Body>

但是，这是我的 WSDL 请求：

   <soapenv:Body>
      <pus:receiveEvents>
         <!--Optional:-->
         <pus:eventQueryResult>
            <!--Optional:-->
            <pus:queryId>?</pus:queryId>
            <!--Optional:-->
            <pus:queryStatus>?</pus:queryStatus>
         </pus:eventQueryResult>
         <!--Optional:-->
         <pus:events>
            <!--Optional:-->
            <pus:eid>?</pus:eid>
            <!--Optional:-->
            <pus:eventMessage>?</pus:eventMessage>
            <!--Optional:-->
            <pus:eventSeverity>?</pus:eventSeverity>
            <!--Optional:-->
            <pus:eventTime>?</pus:eventTime>
            <!--Optional:-->
            <pus:eventTypeName>?</pus:eventTypeName>
            <!--Optional:-->
            <pus:meterId>?</pus:meterId>
         </pus:events>
         <pus:subscriptionId>
            <!--Optional:-->
            <pus:subscriptionId>?</pus:subscriptionId>
         </pus:subscriptionId>
      </pus:receiveEvents>
   </soapenv:Body>

这是我写的代码

    class eventQueryResult(ComplexModel):
    __namespace__ = 'http://pushevent.nbapi.cgms.cisco.com/'

    queryId = String
    queryStatus = String

class events(ComplexModel):
    __namespace__ = 'http://pushevent.nbapi.cgms.cisco.com/'   

    eid = String
    eventMessage = String 
    eventSeverity = String
    eventTime = Long
    eventTypeName = String
    meterId = String

class subscriptionId(ComplexModel):
    __namespace__ = 'http://pushevent.nbapi.cgms.cisco.com/'

    subscriptionId = Long

class EventPushService(ServiceBase):
    __tns__ = 'http://pushevent.nbapi.cgms.cisco.com/'
    __wsdl__ = 'http://schemas.xmlsoap.org/wsdl/'

    @rpc(eventQueryResult.customize(min_occurs=0), events.customize(min_occurs=0), subscriptionId.customize(min_occurs=1,nillable = True), _returns=ResponseData)
    def receiveEvents(ctx, eventQueryResult, events, subscriptionId):
        eid = events.eid

        return print(eid)

我需要 eventQueryResult 包含事件，但我不知道如何。 Spyne 的文档对此没有帮助。

感谢您的cmets

Answer 1

这里有一些事情要做。代码很不完整，所以做了一些假设。这与 spyne 示例应用非常接近，与您发布的代码 sn-ps 可以确定的内容相匹配。

当您创建类来为您的数据建模时，您希望eventQueryResult 包含事件。数组是文档here。该代码看起来更像：

class events(ComplexModel):
    eid = String
    eventMessage = String
    eventSeverity = String
    eventTime = Long
    eventTypeName = String
    meterId = String

class eventQueryResult(ComplexModel):
    queryId = String
    queryStatus = String
    events = Array(events)

当您指定 RPC 时，函数的名称是 soapAction，首先是客户端将发送给您的对象的模型。在这里，整个有效载荷被建模为一个对象。 Bare 意味着负载不会被包装在数组中。根据您的客户，这可能需要更改。

    @rpc(eventQueryResult, _body_style='bare', _returns=someResponse)

someResponse 是您要发送回客户端的响应的模型。我真的不知道你想要什么，一系列被接受的事件怎么样？整个脚本如下所示：

import logging
from spyne import Application, rpc, ServiceBase, \
    String, Long
from spyne.protocol.soap import Soap11
from spyne.server.wsgi import WsgiApplication
from spyne.model.complex import ComplexModel, Array

logging.basicConfig(level="WARNING")

class event(ComplexModel):
    eid = String
    eventMessage = String
    eventSeverity = String
    eventTime = Long
    eventTypeName = String
    meterId = String

class eventQueryResult(ComplexModel):
    queryId = String
    queryStatus = String
    events = Array(event)

class someResponse(ComplexModel):
    eventIds = Array(String)

class EventPushService(ServiceBase):
    @rpc(eventQueryResult, _body_style='bare', _returns=someResponse)
    def receiveEvents(ctx, req):
        print(req)

        return someResponse(eventIds = [ i.eid for i in req.events ] )

application = Application([EventPushService],
    tns='http://pushevent.nbapi.cgms.cisco.com/',
    in_protocol=Soap11(validator='lxml'),
    out_protocol=Soap11()
)

if __name__ == '__main__':
    # You can use any Wsgi server. Here, we chose
    # Python's built-in wsgi server but you're not
    # supposed to use it in production.

    from wsgiref.simple_server import make_server
    wsgi_app = WsgiApplication(application)
    server = make_server('0.0.0.0', 80, wsgi_app)
    server.serve_forever()

我正在使用看起来像这样的有效负载进行测试

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:tns="http://pushevent.nbapi.cgms.cisco.com/">
  <soapenv:Header/>
  <soapenv:Body>
    <tns:receiveEvents>
      <tns:queryId>100</tns:queryId>
      <tns:queryStatus>Success</tns:queryStatus>
      <tns:events>
        <tns:event>
          <tns:eid>someId</tns:eid>
          <tns:eventMessage>someEventMessage</tns:eventMessage>
          <tns:eventSeverity>someEventSeverity</tns:eventSeverity>
          <tns:eventTime>1614974343</tns:eventTime>
          <tns:eventTypeName>eventType</tns:eventTypeName>
          <tns:meterId>meterStayOnTheMeter</tns:meterId>
        </tns:event>
        <tns:event>
          <tns:eid>someId2</tns:eid>
          <tns:eventMessage>someEventMessage2</tns:eventMessage>
          <tns:eventSeverity>someEventSeverity2</tns:eventSeverity>
          <tns:eventTime>1614974344</tns:eventTime>
          <tns:eventTypeName>eventType2</tns:eventTypeName>
          <tns:meterId>meterStayOnTheMeter2</tns:meterId>
        </tns:event>
      </tns:events>
    </tns:receiveEvents>
  </soapenv:Body>
</soapenv:Envelope>

我使用了一个 curl 命令，比如curl localhost -d @payload -H 'SOAPAction: "receiveEvents"' -H "Content-type: text/xml; charset='UTF-8'"