如何从WSDL文件构建soap服务器?

Question

我正在尝试从WSDL文件创建一个soap服务器。我使用Python 3和Spyne来生成它。这个服务器需要是特定的，因为客户端已经存在。我需要我的WSDL请求看起来像下面的

<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的文档不能帮我解决这个问题。

感谢您的评论

Answer 1

这里有几件事要做。代码相当不完整，因此做了一些假设。这与spyne示例应用程序非常接近，与从您发布的代码片段中可以确定的内容相匹配。

当您创建类来对数据建模时，您希望eventQueryResult包含事件。数组在这里是文档。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，整个有效负载被建模为一个对象。裸意味着负载不会包装在数组中。根据你的客户，这可能需要改变。

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

somerresponse是要发送回客户端的响应的模型。我真的不知道你想要的是什么，那么一系列被接受的事件呢?整个脚本如下:

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()

我正在测试的有效载荷看起来像

<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>

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

这样的curl命令