wrong namespace prefix in SOAP request

[stuartz]

I had the same issue as refrenced in this stackoverflow. Alex Miro explained the issue and provided a work around on suds. I believe it will also work on suds-py3. I tried the same solution on my program and it worked perfectly. Something I had been struggling with for a while.

quote:

I use python/suds to implement a client and I get wrong namespace prefixes in the sent SOAP header for a spefic type of parameters defined by element ref= in the wsdl.

The .wsdl is referencing a data types .xsd file, see below. The issue is with the function GetRecordAttributes and its first argument of type gbt:recordReferences.

File: browse2.wsdl

<xsd:schema targetNamespace="http://www.grantadesign.com/10/10/Browse" xmlns="http://www.grantadesign.com/10/10/Browse" xmlns:gbt="http://www.grantadesign.com/10/10/GrantaBaseTypes" elementFormDefault="qualified" attributeFormDefault="qualified"> <xsd:import schemaLocation="grantabasetypes2.xsd" namespace="http://www.grantadesign.com/10/10/GrantaBaseTypes"/> <xsd:element name="GetRecordAttributes"> <xsd:complexType> <xsd:sequence> <xsd:element ref="gbt:recordReferences"> </xsd:element>

Referenced File : grantabasetypes2.xsd

<element name="recordReferences"> <complexType> <sequence> <element name="record" minOccurs="0" maxOccurs="unbounded" type="gbt:MIRecordReference"/> </sequence> </complexType> </element>

SOAP Request sent by suds:

<SOAP-ENV:Envelope xmlns:ns0="http://www.grantadesign.com/10/10/GrantaBaseTypes" xmlns:ns1="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns2="http://www.grantadesign.com/10/10/Browse" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"> <SOAP-ENV:Header/> <ns1:Body> <ns2:GetRecordAttributes> <ns2:recordReferences> <ns0:record> </ns0:record> </ns2:recordReferences> </ns2:GetRecordAttributes> </ns1:Body> </SOAP-ENV:Envelope>

Problem : ns2:recordReferences has wrong prefix, should be ns0:recordReferences since it belongs to the namespace ...GrantaBaseTypes defined in the .xsd.

This happens for all arguments defined by ref= in the wsdl. How can this be automatically fixed?

Note: I checked that the "good" prefix is accepted by the service by manually sending the xml SOAP request via curl.

UPDATE

I meddled with SUDS source code and the following empirical fix forces all elements with ref= attribute to assume the ref-ed namespace (previously, they take on the schema root namespace or whatever tns is):

File: /suds/xsd/sxbase.py

class SchemaObject(object):
....
    def namespace(self, prefix=None):
         ns = self.schema.tns

         #FIX BEGIN
         if self.ref and self.ref in self.schema.elements.keys():
            ns = self.ref
         #FIX END

end quote