Local updates for dev.myslice.info to work with api v2

[myslice.git] / manifold / manifoldproxy.py

diff --git a/manifold/manifoldproxy.py b/manifold/manifoldproxy.py
index 3b3ba0f..29239b5 100644 (file)
--- a/manifold/manifoldproxy.py
+++ b/manifold/manifoldproxy.py
@@ -6,17 +6,30 @@ from django.http import HttpResponse, HttpResponseForbidden
 from manifold.manifoldquery import ManifoldQuery
 from manifold.manifoldapi import ManifoldAPI
 
+debug=False
+debug=True
+
 # add artificial delay in s
 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
 # as well as 
-# static/js/manifold-async.js
-def api (request,format):
-    """the view associated with /manifold/api/ 
+# static/js/manifold.js
+def proxy (request,format):
+    """the view associated with /manifold/proxy/ 
 with the query passed using POST"""
     
     # expecting a POST
@@ -28,22 +41,61 @@ 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.fill_from_dict(request.POST)
+        manifold_query.fill_from_POST(request.POST)
+        offline_filename="offline-%s-%s.json"%(manifold_query.action,manifold_query.subject)
         # 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 "="*80
+        if debug: 
+            print '<=== manifoldproxy.proxy: received from backend with code', answer['code']
+            if answer['code']==0:
+                print ".... ctd ",
+                value=answer['result'] # was: 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()