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:
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proc
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thread-self
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root
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usr
/
lib
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python3.6
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site-packages
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up2date_client
/
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files >> //proc/thread-self/root/usr/lib/python3.6/site-packages/up2date_client/getMethod.py
# Retrieve action method name given queued action information. # # Client code for Update Agent # Copyright (c) 1999--2016 Red Hat, Inc. Distributed under GPLv2. # # An allowable xmlrpc method is retrieved given a base location, a # hierarchical route to the class/module, and method name. # import os import string import sys from rhn.tb import raise_with_tb try: # python2 from types import ClassType except ImportError: # python3 ClassType = type class GetMethodException(Exception): """Exception class""" pass def sanity(methodNameComps): #""" # Verifies if all the components have proper names #""" # Allowed characters in each string alpha = string.ascii_lowercase + string.ascii_uppercase allowedChars = alpha + string.digits + '_' for comp in methodNameComps: if not len(comp): raise GetMethodException("Empty method component") for c in comp: if c not in allowedChars: raise GetMethodException( "Invalid character '%s' in the method name" % c) # Can only begin with a letter if comp[0] not in alpha: raise GetMethodException( "Method names should start with an alphabetic character") def getMethod(methodName, baseClass): #""" #Retreive method given methodName, path to base of tree, and class/module #route/label. #""" # First split the method name methodNameComps = baseClass.split('.') + methodName.split('.') # Sanity checks sanity(methodNameComps) # Look for the module, start with the most specific for index in range(len(methodNameComps), 0, -1): modulename = '.'.join(methodNameComps[:index]) try: actions = __import__(modulename) except ImportError: # does not exist, try next one continue except Exception: raise_with_tb(GetMethodException("Could not import module %s" % modulename)) # found one, skip the rest break else: # no module found. die raise GetMethodException("Action %s could not be imported" % methodName) # The position of the file fIndex = index className = actions # Iterate through the list of components and try to load that specific # module/method for index in range(1, len(methodNameComps)): comp = methodNameComps[index] if index < fIndex: # This is a directory or a file we have to load if not hasattr(className, comp): # Hmmm... Not there raise GetMethodException("Class %s has no attribute %s" % ( '.'.join(methodNameComps[:index]), comp)) className = getattr(className, comp) #print(type(className)) continue # A file or method # We look for the special __rhnexport__ array if not hasattr(className, '__rhnexport__'): raise GetMethodException("Class %s is not RHN-compliant" % \ '.'.join(methodNameComps[:index])) export = getattr(className, '__rhnexport__') if comp not in export: raise GetMethodException("Class %s does not export '%s'" % ( '.'.join(methodNameComps[:index]), comp)) className = getattr(className, comp) if type(className) is ClassType: # Try to instantiate it className = className() #print(type(className)) return className #----------------------------------------------------------------------------- if __name__ == '__main__': # Two valid ones and a bogus one methods = [ 'a.b.c.d.e.f', 'a.b.c.d.e.foo.h', 'a.b.c.d.e.g.h', 'a.b.d.d.e.g.h', 'a.b.d.d._e.g.h', 'a.b.d.d.e_.g.h', 'a.b.d.d.e-.g.h', 'a.b.d.d..g.h', ] for m in methods: print("----Running method %s: " % m) try: method = getMethod(m, 'Actions') except GetMethodException: e = sys.exc_info()[1] print("Error getting the method %s: %s" % (m, ''.join(map(str, e.args)))) else: method() #-----------------------------------------------------------------------------
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