def fhir_conformance(request, via_oauth=False, *args, **kwargs): """ Pull and filter fhir Conformance statement BaseStu3 = "CapabilityStatement" :param request: :param via_oauth: :param args: :param kwargs: :return: """ crosswalk = None resource_router = get_resourcerouter() call_to = FhirServerUrl() if call_to.endswith('/'): call_to += 'metadata' else: call_to += '/metadata' pass_params = {'_format': 'json'} encoded_params = urlencode(pass_params) pass_params = prepend_q(encoded_params) r = request_call(request, call_to + pass_params, crosswalk) text_out = '' host_path = get_host_url(request, '?') if r.status_code >= 300: logger.debug("We have an error code to deal with: %s" % r.status_code) return HttpResponse(json.dumps(r._content), status=r.status_code, content_type='application/json') rewrite_url_list = build_rewrite_list(crosswalk) text_in = get_response_text(fhir_response=r) text_out = post_process_request(request, host_path, text_in, rewrite_url_list) od = conformance_filter(text_out, resource_router) # Append Security to ConformanceStatement security_endpoint = build_oauth_resource(request, format_type="json") od['rest'][0]['security'] = security_endpoint # Fix format values od['format'] = ['application/json', 'application/fhir+json'] return JsonResponse(od)
def fhir_conformance(request, *args, **kwargs): """ Pull and filter fhir Conformance statement BaseDstu2 = "Conformance" BaseStu3 = "CapabilityStatement" metadata call """ if not request.user.is_authenticated(): return authenticated_home(request) try: cx = Crosswalk.objects.get(user=request.user) except Crosswalk.DoesNotExist: cx = None # logger.debug('Crosswalk for %s does not exist' % request.user) if cx: call_to = cx.fhir_source.fhir_url else: call_to = FhirServerUrl() resource_type = conformance_or_capability(call_to) if call_to.endswith('/'): call_to += 'metadata' else: call_to += '/metadata' pass_params = strip_oauth(request.GET) # pass_params should be an OrderedDict after strip_auth # logger.debug("result from strip_oauth:%s" % pass_params) # Let's store the inbound requested format # We need to simplify the format call to the backend # so that we get data we can manipulate requested_format = request_format(pass_params) # now we simplify the format/_format request for the back-end pass_params = strip_format_for_back_end(pass_params) back_end_format = pass_params['_format'] encoded_params = urlencode(pass_params) # # Add ? to front of parameters if needed pass_params = prepend_q(encoded_params) # logger.debug("Calling:%s" % call_to + pass_params) #################################################### #################################################### r = request_call(request, call_to + pass_params, cx, reverse_lazy('authenticated_home')) #################################################### #################################################### text_out = '' host_path = get_host_url(request, '?') # get 'xml' 'json' or '' # fmt = get_search_param_format(request.META['QUERY_STRING']) # force to json # logger.debug("Format:%s" % back_end_format) rewrite_url_list = settings.FHIR_SERVER_CONF['REWRITE_FROM'] # print("Starting Rewrite_list:%s" % rewrite_url_list) text_out = post_process_request(request, back_end_format, host_path, r.text, rewrite_url_list) query_string = build_querystring(request.GET.copy()) # logger.debug("Query:%s" % query_string) if 'xml' in requested_format: # logger.debug('We got xml back in od') # logger.debug("is xml filtered?%s" % requested_format) xml_dom = xml_to_dom(text_out) text_out = dom_conformance_filter(xml_dom) # logger.debug("Text from XML function:\n%s\n=========" % text_out) if 'html' not in requested_format: return HttpResponse(text_out, content_type='application' '/%s' % requested_format) else: # logger.debug("Sending text_out for display: %s" % text_out[0:100]) return render( request, 'bluebutton/default_xml.html', { 'output': text_out, 'content': { 'parameters': query_string, 'resource_type': resource_type, 'request_method': "GET", 'interaction_type': "metadata", 'source': cx.fhir_source.name } }) # return HttpResponse( tostring(dict_to_xml('content', od)), # content_type='application/%s' % fmt) elif back_end_format == 'json': # logger.debug('We got json back in od') od = conformance_filter(text_out, back_end_format) text_out = pretty_json(od) if 'html' not in requested_format: return HttpResponse(text_out, content_type='application/' '%s' % requested_format) else: # let's make sure we have json to deliver: od = conformance_filter(text_out, back_end_format) text_out = pretty_json(od) # logger.debug('We got a different format:%s' % back_end_format) return render( request, 'bluebutton/default.html', { 'output': text_out, 'content': { 'parameters': query_string, 'resource_type': resource_type, 'request_method': "GET", 'interaction_type': "metadata", 'source': cx.fhir_source.name } })
def fhir_conformance(request, *args, **kwargs): """ Pull and filter fhir Conformance statement metadata call """ if not request.user.is_authenticated(): return authenticated_home(request) resource_type = "Conformance" call_to = FhirServerUrl() if call_to.endswith("/"): call_to += "metadata" else: call_to += "/metadata" pass_params = urlencode(strip_oauth(request.GET)) # Add ? to front of parameters if needed pass_params = prepend_q(pass_params) logger.debug("Calling:%s" % call_to + pass_params) r = request_call(request, call_to + pass_params, reverse_lazy("authenticated_home")) text_out = "" host_path = get_host_url(request, "?") # get 'xml' 'json' or '' fmt = get_search_param_format(request.META["QUERY_STRING"]) rewrite_url_list = settings.FHIR_SERVER_CONF["REWRITE_FROM"] # print("Starting Rewrite_list:%s" % rewrite_url_list) text_out = post_process_request(request, fmt, host_path, r.text, rewrite_url_list) od = conformance_filter(text_out, fmt) if fmt == "xml": # logger.debug('We got xml back in od') return HttpResponse(text_out, content_type="application/%s" % fmt) # return HttpResponse( tostring(dict_to_xml('content', od)), # content_type='application/%s' % fmt) elif fmt == "json": # logger.debug('We got json back in od') return HttpResponse(pretty_json(od), content_type="application/%s" % fmt) # logger.debug('We got a different format:%s' % fmt) return render( request, "bluebutton/default.html", { "output": pretty_json(od), "content": { "parameters": request.GET.urlencode(), "resource_type": resource_type, "request_method": "GET", "interaction_type": "metadata", }, }, )
def metadata(request, via_oauth=False, *args, **kwargs): """ Arrive here to do capabilityStatement or Conformance aka metadata oauth_fhir_conformance sets via_oauth=True fhir_conformance sets via_oauth=False :param request: :param via_oauth: :param args: :param kwargs: :return: """ cx = None rr = get_resourcerouter() call_to = FhirServerUrl() resource_type = conformance_or_capability(call_to) if call_to.endswith('/'): call_to += 'metadata' else: call_to += '/metadata' pass_params = request.GET # pass_params should be an OrderedDict after strip_auth # logger.debug("result from strip_oauth:%s" % pass_params) # Let's store the inbound requested format # We need to simplify the format call to the backend # so that we get data we can manipulate requested_format = request_format(pass_params) # now we simplify the format/_format request for the back-end pass_params = strip_format_for_back_end(pass_params) back_end_format = pass_params['_format'] encoded_params = urlencode(pass_params) # # Add ? to front of parameters if needed pass_params = prepend_q(encoded_params) # logger.debug("Calling:%s" % call_to + pass_params) query_string = build_querystring(request.GET.copy()) #################################################### #################################################### r = request_call(request, call_to + pass_params, cx, reverse_lazy('authenticated_home')) #################################################### #################################################### text_out = '' host_path = get_host_url(request, '?') if r.status_code in ERROR_CODE_LIST: logger.debug("We have an error code to deal with: %s" % r.status_code) if 'html' in requested_format.lower(): return render( request, 'bluebutton/default.html', {'output': pretty_json(r._content, indent=4), 'fhir_id': get_fhir_id(cx), 'content': {'parameters': query_string, 'resource_type': resource_type, 'id': id, 'request_method': "GET", 'interaction_type': "search", 'div_texts': "", 'source': get_fhir_source_name(cx)}}) else: return HttpResponse(json.dumps(r._content, indent=4), status=r.status_code, content_type='application/json') # get 'xml' 'json' or '' # fmt = get_search_param_format(request.META['QUERY_STRING']) # force to json # logger.debug("Format:%s" % back_end_format) rewrite_url_list = build_rewrite_list(cx) # print("Starting Rewrite_list:%s" % rewrite_url_list) text_in = get_response_text(fhir_response=r) # print("Capability text: %s\n" % r.text) # print("Capability _text: %s\n" % r._text) # text_in = r.text # if text_in == "": # print("Capability assigning _text: %s\n" % r._text[:100]) # # text_in = r._text text_out = post_process_request(request, back_end_format, host_path, text_in, rewrite_url_list) # define query string further up before request_call # query_string = build_querystring(request.GET.copy()) # logger.debug("Query:%s" % query_string) if 'xml' in requested_format: # logger.debug('We got xml back in od') # logger.debug("is xml filtered?%s" % requested_format) xml_dom = xml_to_dom(text_out) text_out = dom_conformance_filter(xml_dom, rr) # Append Security to ConformanceStatement security_endpoint = build_oauth_resource(request, format_type="xml") text_out = append_security(text_out, security_endpoint) # logger.debug("Text from XML function:\n%s\n=========" % text_out) if 'html' not in requested_format: return HttpResponse(text_out, content_type='application' '/%s' % requested_format) else: # logger.debug("Sending text_out for display: %s" % text_out[0:100]) return render( request, 'bluebutton/default_xml.html', {'output': text_out, 'content': {'parameters': query_string, 'resource_type': resource_type, 'request_method': "GET", 'interaction_type': "metadata", 'source': get_fhir_source_name(cx)}}) # return HttpResponse( tostring(dict_to_xml('content', od)), # content_type='application/%s' % fmt) else: # back_end_format == 'json' # logger.debug('We got json back in od') od = conformance_filter(text_out, back_end_format, rr) # Append Security to ConformanceStatement security_endpoint = build_oauth_resource(request, format_type="json") print("OD:\n%s" % od['rest']) od['rest'][0]['security'] = security_endpoint print("OD+Security:\n%s" % od) text_out = pretty_json(od) if 'html' not in requested_format: return HttpResponse(text_out, content_type='application/' '%s' % requested_format) if 'security' in od: print("%s" % pretty_json(od['security'], indent=4)) else: print("No security content in Conformance") print("od: %s" % pretty_json(od, indent=4)) # logger.debug('We got a different format:%s' % back_end_format) return render( request, 'bluebutton/default.html', {'output': text_out, 'content': {'parameters': query_string, 'resource_type': resource_type, 'request_method': "GET", 'interaction_type': "metadata"}})
def generic_read(request, interaction_type, resource_type, r_id=None, vid=None, *args, **kwargs): """ Read from remote FHIR Server :param request: :param interaction_type: :param resource_type: :param id: :param vid: :param args: :param kwargs: :return: # Example client use in curl: # curl -X GET http://127.0.0.1:8000/fhir/Practitioner/1234 """ # interaction_type = 'read' or '_history' or 'vread' or 'search' logger.debug('interaction_type: %s' % interaction_type) # Check if this interaction type and resource type combo is allowed. deny = check_access_interaction_and_resource_type(resource_type, interaction_type) if deny: # if not allowed, return a 4xx error. return deny srtc = check_rt_controls(resource_type) # We get back a Supported ResourceType Control record or None # with earlier if deny step we should have a valid srtc. default_path = get_default_path(srtc.resource_name) # get the default path for resource with ending "/" # You need to add resource_type + "/" for full url logger.debug('srtc: %s' % srtc) try: cx = Crosswalk.objects.get(user=request.user) except Crosswalk.DoesNotExist: cx = None # logger.debug('Crosswalk for %s does not exist' % request.user) if (cx is None and srtc is not None): # There is a srtc record so we need to check override_search if srtc.override_search: # If user is not in Crosswalk and srtc has search_override = True # We need to prevent search to avoid data leakage. return kickout_403('Error 403: %s Resource is access controlled.' ' No records are linked to user:'******'%s' % (resource_type, request.user)) # Request.user = user # interaction_type = read | _history | vread # resource_type = 'Patient | Practitioner | ExplanationOfBenefit ...' # id = fhir_id (potentially masked) # vid = Version Id # Check the resource_type to see if it has a url # Check the resource_type to see if masking is required # Get the FHIR_Server (from crosswalk via request.user) # if masked get the fhir_id from crosswalk # if search_override strip search items (search_block) # if search_override add search keys fhir_url = '' # change source of default_url to ResourceRouter # Add default FHIR Server URL to re-write rewrite_url_list = settings.FHIR_SERVER_CONF['REWRITE_FROM'] # print("Starting Rewrite_list:%s" % rewrite_url_list) if srtc: logger.debug('SRTC:%s' % srtc) fhir_url = default_path + resource_type + '/' # Add to the rewrite_url list rewrite_url_list.append(default_path) else: logger.debug('CX:%s' % cx) if cx: fhir_url = cx.get_fhir_resource_url(resource_type) rewrite_url_list.append(fhir_url.replace(resource_type + '/', '')) else: # logger.debug('FHIRServer:%s' % FhirServerUrl()) fhir_url = FhirServerUrl() + resource_type + '/' if FhirServerUrl()[:-1] not in rewrite_url_list: rewrite_url_list.append(FhirServerUrl()[:-1]) logger.debug('FHIR URL:%s' % fhir_url) logger.debug('Rewrite List:%s' % rewrite_url_list) if interaction_type == 'search': key = None else: key = masked_id(resource_type, cx, srtc, r_id, slash=False) if fhir_url.endswith(resource_type + '/'): # we need to make sure we don't specify resource_type twice in URL if key.startswith(resource_type + '/'): key = key.replace(resource_type + '/', '') fhir_url += key + '/' logger.debug('FHIR URL with key:%s' % fhir_url) ########################### # Now we get to process the API Call. # Internal handling format is json # Remove the oauth elements from the GET pass_params = strip_oauth(request.GET) if interaction_type == 'search': if cx is not None: logger.debug("cx.fhir_id=%s" % cx.fhir_id) r_id = cx.fhir_id.split('/')[1] logger.debug("Patient Id:%s" % r_id) if resource_type == "Patient": key = r_id pass_params = build_params(pass_params, srtc, # key, r_id, ) if interaction_type == 'vread': pass_to = fhir_url + '_history' + '/' + vid elif interaction_type == '_history': pass_to = fhir_url + '_history' else: # interaction_type == 'read': pass_to = fhir_url logger.debug('Here is the URL to send, %s now add ' 'GET parameters %s' % (pass_to, pass_params)) if pass_params is not '': pass_to += pass_params logger.debug("Making request:%s" % pass_to) # Now make the call to the backend API r = request_call(request, pass_to, reverse_lazy('api:v1:home')) text_out = '' if 'text' in r: logger.debug('r:%s' % r.text) else: logger.debug("r not returning text:%s" % r) # logger.debug('Rewrite List:%s' % rewrite_url_list) host_path = get_host_url(request, resource_type)[:-1] logger.debug('host path:%s' % host_path) # get 'xml' 'json' or '' fmt = get_search_param_format(pass_params) text_out = post_process_request(request, fmt, host_path, r.text, rewrite_url_list) od = build_output_dict(request, OrderedDict(), resource_type, key, vid, interaction_type, fmt, text_out) # write session variables if _getpages was found ikey = find_ikey(r.text) if ikey is not '': save_url = get_target_url(fhir_url, resource_type) # print("Store fhir_url:%s but only: %s" % (fhir_url,save_url)) content = { 'fhir_to': save_url, 'rwrt_list': rewrite_url_list, 'res_type': resource_type, 'intn_type': interaction_type, 'key': key, 'vid': vid } sesn_var = write_session(request, ikey, content, skey=SESSION_KEY) if sesn_var: logger.debug("Problem writing session variables." " Returned %s" % sesn_var) if fmt == 'xml': # logger.debug('We got xml back in od') return HttpResponse(r.text, content_type='application/%s' % fmt) # return HttpResponse( tostring(dict_to_xml('content', od)), # content_type='application/%s' % fmt) elif fmt == 'json': # logger.debug('We got json back in od') return HttpResponse(pretty_json(od), content_type='application/%s' % fmt) # logger.debug('We got a different format:%s' % fmt) return render( request, 'bluebutton/default.html', {'content': pretty_json(od), 'output': od}, )