debug=True
-class ManifoldAPI:
+class SessionExpired (Exception):
+ def __init__ (self,message):
+ self.message=message
+ def __repr__ (self):
+ return "<SessionExpired: %s>"%self.message
- def __init__(self, auth=None, cainfo=None):
+class ManifoldAPI:
- config = Config()
- self.auth = auth
- self.cainfo = cainfo
- self.errors = []
- self.trace = []
- self.calls = {}
- self.multicall = False
- self.url = config.manifold_url
- self.server = xmlrpclib.Server(self.url, verbose=False, allow_none=True)
+ def __init__(self, auth=None, cainfo=None):
+
+ config = Config()
+ self.auth = auth
+ self.cainfo = cainfo
+ self.errors = []
+ self.trace = []
+ self.calls = {}
+ self.multicall = False
+ self.url = config.manifold_url
+ self.server = xmlrpclib.Server(self.url, verbose=False, allow_none=True)
- def __getattr__(self, methodName):
- def func(*args, **kwds):
- result=getattr(self.server, methodName)(self.auth, *args, **kwds)
- ### debug
- if debug:
- print '===> backend call',methodName, self.auth, self.url,'->',
- if not result: print "no/empty result"
- elif isinstance (result,str): print "result is '%s'"%result
- elif isinstance (result,list): print "result is a %d-elts list"%len(result)
- else: print "dont know how to display result"
- ###
- return result
- return func
+ def __getattr__(self, methodName):
+ def func(*args, **kwds):
+ try:
+ result=getattr(self.server, methodName)(self.auth, *args, **kwds)
+ if debug:
+ print '===> backend call',methodName, self.auth, self.url,'->',
+ if not result: print "no/empty result"
+ elif isinstance (result,str): print "result is '%s'"%result
+ elif isinstance (result,list): print "result is a %d-elts list"%len(result)
+ else: print "dont know how to display result"
+ return result
+ except xmlrpclib.Fault, error:
+ ### xxx this is very rough for now
+ # until we have some agreement about how the API calls should return error conditions
+ # in some less unpolite way than this anoanymous exception, we assume it's a problem with the session
+ # that needs to be refreshed
+ if error.faultCode == 8002:
+ reason="most likely your session has expired"
+ reason += " (the manifold API has no unambiguous error reporting mechanism yet)"
+ raise SessionExpired(reason)
+ except Exception,error:
+ print "ManifoldAPI: unexpected exception",error
+ raise
+ return func
- def send_manifold_query (self, manifold_query):
- (action,subject)= (manifold_query.action,manifold_query.subject)
- if action=='get':
- return self.server.Get(self.auth, subject, manifold_query.filters, {}, manifold_query.fields)
- # xxx...
- else:
- print "WARNING: ManifoldAPI.send_manifold_query: only 'get' implemented for now"
-
+ def send_manifold_query (self, manifold_query):
+ (action,subject)= (manifold_query.action,manifold_query.subject)
+ if action=='get':
+ # use self.Get rather than self.server.Get so we catch exceptions as per __getattr__
+ return self.Get(self.auth, subject, manifold_query.filters, {}, manifold_query.fields)
+ # xxx...
+ else:
+ print "WARNING: ManifoldAPI.send_manifold_query: only 'get' implemented for now"