X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=manifold%2Fmanifoldproxy.py;h=1182955721d10eca25debc37b7928aa36476619e;hb=9e6b289bad3042093d0414ed90a336aaa5bfa09a;hp=99057f48d8afce5cea76deb3fe8005dcd11ea1cd;hpb=ad6ebdd21b0be23a246af3817c886637491ee23f;p=myslice.git diff --git a/manifold/manifoldproxy.py b/manifold/manifoldproxy.py index 99057f48..11829557 100644 --- a/manifold/manifoldproxy.py +++ b/manifold/manifoldproxy.py @@ -3,7 +3,8 @@ import json #from django.core import serializers from django.http import HttpResponse, HttpResponseForbidden -from manifold.manifoldquery import ManifoldQuery +#from manifold.manifoldquery import ManifoldQuery +from manifold.core.query import Query from manifold.manifoldapi import ManifoldAPI debug=False @@ -13,6 +14,16 @@ debug=True debug_spin=0 #debug_spin=1 +# pretend the server only returns - empty lists to 'get' requests - this is to mimick +# misconfigurations or expired credentials or similar corner case situations +debug_empty=False +#debug_empty=True + +# turn this on if you want the fastest possible (locally cached) feedback +# beware that this is very rough though... +work_offline=False +#work_offline=True + # this view is what the javascript talks to when it sends a query # see also # myslice/urls.py @@ -31,24 +42,63 @@ with the query passed using POST""" # format_in : how is the query encoded in POST # format_out: how to serve the results if format != 'json': - print "manifoldproxy.api: unexpected format %s -- exiting"%format + print "manifoldproxy.proxy: unexpected format %s -- exiting"%format return try: # translate incoming POST request into a query object if debug: print 'manifoldproxy.proxy: request.POST',request.POST - manifold_query = ManifoldQuery() + manifold_query = Query() + #manifold_query = ManifoldQuery() manifold_query.fill_from_POST(request.POST) + offline_filename="offline-%s-%s.json"%(manifold_query.action,manifold_query.object) # retrieve session for request manifold_api_session_auth = request.session['manifold']['auth'] + if debug_empty and manifold_query.action.lower()=='get': + json_answer=json.dumps({'code':0,'value':[]}) + print "By-passing : debug_empty & 'get' request : returning a fake empty list" + return HttpResponse (json_answer, mimetype="application/json") + ### patch : return the latest one.. + if work_offline: + # if that won't work then we'll try to update anyways + try: + with (file(offline_filename,"r")) as f: + json_answer=f.read() + print "By-passing : using contents from %s"%offline_filename + return HttpResponse (json_answer, mimetype="application/json") + except: + import traceback + traceback.print_exc() + print "Could not run in offline mode, PROCEEDING" + pass + # actually forward manifold_api= ManifoldAPI(auth=manifold_api_session_auth) if debug: print 'manifoldproxy.proxy: sending to backend', manifold_query answer=manifold_api.send_manifold_query (manifold_query) - if debug_spin: + print "="*80 + print "ANSWER IN PROXY", answer + print answer.ok_value() + print "="*80 + if debug: + print '<=== manifoldproxy.proxy: received from backend with code', answer['code'] + if answer['code']==0: + print ".... ctd ", + value=answer.ok_value() + if isinstance (value, list): print "result is a list with %d entries"%len(value) + elif isinstance (value, dict): print "result is a dict with keys %s"%value.keys() + else: print "result is other (type=%s) : %s"%(type(value),value) + json_answer=json.dumps(answer) + # if in debug mode we save this so we can use offline mode later + if (debug): + with (file(offline_filename,"w")) as f: + f.write(json_answer) + # this is an artificial delay added for debugging purposes only + if debug_spin>0: + print "Adding additional artificial delay",debug_spin import time time.sleep(debug_spin) - # return json-encoded answer - return HttpResponse (json.dumps(answer), mimetype="application/json") + return HttpResponse (json_answer, mimetype="application/json") + except: import traceback traceback.print_exc()