# Manifold API Python interface
-import xmlrpclib
+import copy, xmlrpclib
from myslice.config import Config
debug=False
debug=True
+debug_deep=False
+#debug_deep=True
+########## ugly stuff for hopefully nicer debug messages
def mytruncate (obj, l):
# we will add '..'
l1=l-2
repr="%s"%obj
return (repr[:l1]+'..') if len(repr)>l1 else repr
+from time import time, gmtime, strftime
+from math import trunc
+def mytime (start=None):
+ gm=gmtime()
+ t=time()
+ msg=strftime("%H:%M:%S-", gmtime())+"%03d"%((t-trunc(t))*1000)
+ if start is not None: msg += " (%03fs)"%(t-start)
+ return t,msg
+##########
+
class ManifoldAPI:
- def __init__(self, auth=None, cainfo=None):
+ def __init__ (self, auth=None, cainfo=None):
self.auth = auth
self.cainfo = cainfo
def __repr__ (self): return "ManifoldAPI[%s]"%self.url
+ def _print_value (self, value):
+ print "+++",'value',
+ if isinstance (value,list): print "[%d]"%len(value),
+ elif isinstance (value,dict): print "{%d}"%len(value),
+ print mytruncate (value,80)
+
# a one-liner to give a hint of what the return value looks like
def _print_result (self, result):
if not result: print "[no/empty result]"
print "result is a dict with %d keys : %s"%(len(result),result.keys())
for (k,v) in result.iteritems():
if v is None: continue
- print '+++',k,':',mytruncate (v,60)
+ if k=='value': self._print_value(v)
+ else: print '+++',k,':',mytruncate (v,30)
else: print "[dont know how to display result] %s"%result
+ # how to display a call
+ def _repr_query (self,methodName, query):
+ try: action=query['action']
+ except: action="???"
+ try: subject=query['object']
+ except: subject="???"
+ # most of the time, we run 'forward'
+ if methodName=='forward': return "forward(%s(%s))"%(action,subject)
+ else: return "%s(%s)"%(action,subject)
+
# xxx temporary code for scaffolding a ManifolResult on top of an API that does not expose error info
# as of march 2013 we work with an API that essentially either returns the value, or raises
# an xmlrpclib.Fault exception with always the same 8002 code
# a SESSION_EXPIRED code
def __getattr__(self, methodName):
def func(*args, **kwds):
+ # shorthand
+ def repr(): return self._repr_query (methodName, args[0])
try:
if debug:
- print "====> ManifoldAPI.%s"%methodName,"auth",self.auth,"args",args,"kwds",kwds
- result=getattr(self.server, methodName)(self.auth, *args, **kwds)
+ start,msg = mytime()
+ print "====>",msg,"ManifoldAPI.%s"%repr(),"url",self.url
+ # No password in the logs
+ logAuth = copy.copy(self.auth)
+ for obfuscate in ['Authring','session']:
+ if obfuscate in logAuth: logAuth[obfuscate]="XXX"
+ if debug_deep: print "=> auth",logAuth
+ if debug_deep: print "=> args",args,"kwds",kwds
+ annotations = {
+ 'authentication': self.auth
+ }
+ args += (annotations,)
+ result=getattr(self.server, methodName)(*args, **kwds)
+ print "%s%r" %(methodName, args)
+
if debug:
- print '<==== backend call %s(*%s,**%s) returned'%(methodName,args,kwds),
- print '.ctd. Authmethod=',self.auth['AuthMethod'], self.url,'->',
+ print '<= result=',
self._print_result(result)
- print '===== ManifoldAPI call done'
+ end,msg = mytime(start)
+ print "<====",msg,"backend call %s returned"%(repr())
return ResultValue(**result)
except Exception,error:
print "** MANIFOLD API ERROR **"
+ if debug:
+ print "===== xmlrpc catch-all exception:",error
+ import traceback
+ traceback.print_exc(limit=3)
if "Connection refused" in error:
raise ManifoldException ( ManifoldResult (code=ManifoldCode.SERVER_UNREACHABLE,
output="%s answered %s"%(self.url,error)))
# otherwise
- print "====> ERROR On ManifoldAPI.%s"%methodName,"auth",self.auth,"args",args,"kwds",kwds
- import traceback
- traceback.print_exc()
- if debug: print "KO (unexpected exception)",error
- raise ManifoldException ( ManifoldResult (code=ManifoldCode.UNKNOWN_ERROR, output="%s"%error) )
+ print "<==== ERROR On ManifoldAPI.%s"%repr()
+ raise ManifoldException ( ManifoldResult (code=ManifoldCode.SERVER_UNREACHABLE, output="%s"%error) )
return func