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#  Copyright (c) © 2009, Isaac Greenspan
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#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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import xmlrpclib
import md5
import sys

import pickle
import types

class pyLJxmlrpc:
	
	def fixBinaryResult(self,theResult):
		if theResult.__class__ == types.DictType:
			return dict([(k,self.fixBinaryResult(v)) for k,v in theResult.items()])
		elif theResult.__class__ == types.ListType:
			return [self.fixBinaryResult(v) for v in theResult]
		elif theResult.__class__ == xmlrpclib.Binary:
			return unicode(theResult.data,'utf-8')
		else:
			return theResult
	
	def fixDictInput(self,theInput):
		if theInput.__class__ == types.DictType:
			return dict([(k,self.fixDictInput(v)) for k,v in theInput.items()])
		#elif theInput.__class__ == objc.lookUpClass('NSCFDictionary'):
			#return self.fixDictInput(dict(theInput))
		elif theInput.__class__ == types.ListType:
			return [self.fixDictInput(v) for v in theInput]
		elif theInput.__class__ == xmlrpclib.Binary:
			return theInput
		else:
			return theInput
	
	def call_withParams_atURL_forUser_withPassword_(self, methodName, params, serverURL, username, password):
		#print(u"--entering call_withParams_atURL_forUser_withPassword_")
		paramDict = self.fixDictInput(params)
		proxy = xmlrpclib.ServerProxy(serverURL)
		challenge = proxy.LJ.XMLRPC.getchallenge()["challenge"]
		hexdpass = md5.new(password).hexdigest()
		response = md5.new(challenge + hexdpass).hexdigest()
		paramDict.update({u'auth_method': u'challenge',
						u'username': username,
						u'auth_challenge': unicode(challenge),
						u'auth_response': unicode(response),
						u'ver': 1})
		
		# for reasons that aren't entirely clear, pickling and unpickling the paramDict
		# seems to clean up any left-over objc datatypes and make xmlrpclib happier
		try:
			paramPickled = pickle.dumps(paramDict)
			paramDict = pickle.loads(paramPickled)
		except TypeError, err:
			print(u"couldn't pickle: %r" % paramDict)
			pass
		else:
			try:
				fn = getattr(proxy.LJ.XMLRPC,methodName)
				theResult = fn(paramDict)
			except xmlrpclib.Fault, err:
				print("XMLRPClib Fault")
				print("Fault code: %d" % err.faultCode)
				print("Fault string: %s" % err.faultString)
			except xmlrpclib.ProtocolError, err:
				print("A protocol error occurred")
				print("URL: %s" % err.url)
				print("HTTP/HTTPS headers: %s" % err.headers)
				print("Error code: %d" % err.errcode)
				print("Error message: %s" % err.errmsg)
			else:
				#print(u"---\n%r\n---" % theResult)
				return self.fixBinaryResult(theResult)
				#return theResult