Force rebuild the SOAP-Header after authenticating - ruby

Question

My SOAP-Server expects every request to have a valid token in the soap-header to authenticate the soap-client. This token is only valid for a certain period of time, so I have to expect it to be invalid in every call.
I am trying to find a way to force savon to rebuild the SOAP-Header (i.e. use the new auth-token) after I (re)authenticate with the SOAP-Server. I am not sure, if that is either a savon problem or a ruby one. Here is what I have so far.
class Soapservice
extend Savon::Model
# load stored auth-token
##header_data = YAML.load_file "settings.yaml"
client wsdl: 'locally-cached-wsdl.xml',
soap_header: {'verifyingToken' => ##header_data}
operations :get_authentification_token, :get_server_time
# request a new auth-token and store it
def get_authentification_token
response = super(:message => {
'oLogin' => {
'Username' => 'username',
'Userpass' => 'password'
}
})
settings = {
'UserID' => response[:user_id].to_i,
'Token' => response[:token],
}
File.open("settings.yaml", "w") do |file|
file.write settings.to_yaml
end
##header_data = settings
end
def get_server_time
return super()
rescue Savon::SOAPFault => error
fault_code = error.to_hash[:fault][:faultstring]
if fault_code == 'Unauthorized Request - Invalide Token'
get_authentification_token
retry
end
end
end
When I call
webservice = Soapservice.new
webservice.get_server_time
with an invalid Token, it reauthenticates and saves the new Token successfully, but the retry doesn't load the new header (the result is an infinite loop). Any ideas?

Answer 1

I added rubiii's answer from the GitHub-Issue here for future reference:
class Soapservice
# load stored auth-token
##header_data = YAML.load_file "settings.yaml"
def initialize
#client = Savon.client(wsdl: 'locally-cached-wsdl.xml')
end
def call(operation_name, locals = {})
#client.globals[:soap_header] = {'verifyingToken' => ##header_data}
#client.call(operation_name, locals)
end
# request a new auth-token and store it
def get_authentification_token
message = {
'Username' => 'username',
'Userpass' => 'password'
}
response = call(:get_authentification_token, :message => message)
settings = {
'UserID' => response[:user_id].to_i,
'Token' => response[:token],
}
File.open("settings.yaml", "w") do |file|
file.write settings.to_yaml
end
##header_data = settings
end
def get_server_time
call(:get_server_time)
rescue Savon::SOAPFault => error
fault_code = error.to_hash[:fault][:faultstring]
if fault_code == 'Unauthorized Request - Invalide Token'
get_authentification_token
retry
end
end
end
rubiii added:
notice that i removed Savon::Model, as you actually don't need it and i don't know if it supports this workaround.
if you look at the #call method, it accesses and changes the globals before every request.