def test_style_management_url(self): """Test QGIS Server style management url construction.""" filename = os.path.join(gisdata.GOOD_DATA, 'raster/test_grid.tif') uploaded = file_upload(filename) # Get default style # There will always be a default style when uploading a layer style_url = style_get_url(uploaded, 'default', internal=True) response = requests.get(style_url) self.assertEqual(response.status_code, 200) self.assertEqual(response.headers.get('Content-Type'), 'text/xml') # it has to contains qgis tags style_xml = dlxml.fromstring(response.content) self.assertTrue('qgis' in style_xml.tag) # Add new style # change default style slightly self.assertTrue('WhiteToBlack' not in response.content) self.assertTrue('BlackToWhite' in response.content) new_style_xml = dlxml.fromstring( response.content.replace('BlackToWhite', 'WhiteToBlack')) new_xml_content = etree.tostring(new_style_xml, pretty_print=True) # save it to qml file, accessible by qgis server qgis_layer = QGISServerLayer.objects.get(layer=uploaded) with open(qgis_layer.qml_path, mode='w') as f: f.write(new_xml_content) style_url = style_add_url(uploaded, 'new_style', internal=True) response = requests.get(style_url) self.assertEqual(response.status_code, 200) self.assertEqual(response.content, 'OK') # Get style list qml_styles = style_list(uploaded, internal=False) if qml_styles: expected_style_names = ['default', 'new_style'] actual_style_names = [s.name for s in qml_styles] self.assertEqual(set(expected_style_names), set(actual_style_names)) # Get new style style_url = style_get_url(uploaded, 'new_style', internal=True) response = requests.get(style_url) self.assertEqual(response.status_code, 200) self.assertEqual(response.headers.get('Content-Type'), 'text/xml') self.assertTrue('WhiteToBlack' in response.content) # Set default style style_url = style_set_default_url(uploaded, 'new_style', internal=True) response = requests.get(style_url) self.assertEqual(response.status_code, 200) self.assertEqual(response.content, 'OK') # Remove style style_url = style_remove_url(uploaded, 'new_style', internal=True) response = requests.get(style_url) self.assertEqual(response.status_code, 200) self.assertEqual(response.content, 'OK') # Cleanup uploaded.delete()
def qml_style(request, layername, style_name=None): """Update/Retrieve QML style of a given QGIS Layer. :param layername: The layer name in Geonode. :type layername: basestring :param style_name: The style name recognized by QGIS Server :type style_name: str """ layer = get_object_or_404(Layer, name=layername) if request.method == 'GET': # Request QML from QGIS server if not style_name: # If no style name provided, then it is a List request styles_obj = None try: styles_obj = style_list(layer, internal=False) except BaseException: print 'Failed to fetch styles' styles_dict = [] if styles_obj: styles_dict = [model_to_dict(s) for s in styles_obj] # If no style returned by GetCapabilities, this is a bug in QGIS # Attempt to generate default style name if not styles_dict: style_url = style_get_url(layer, 'default') response = requests.get(style_url) if response.status_code == 200: style_url = style_add_url(layer, 'default') with open(layer.qgis_layer.qml_path, 'w') as f: f.write(response.content) response = requests.get(style_url) if response.status_code == 200: styles_obj = style_list(layer, internal=False) styles_dict = [model_to_dict(s) for s in styles_obj] response = HttpResponse( json.dumps(styles_dict), content_type='application/json') return response # Return XML file of the style style_url = style_get_url(layer, style_name, internal=False) response = requests.get(style_url) if response.status_code == 200: response = HttpResponse( response.content, content_type='text/xml') response[ 'Content-Disposition'] = 'attachment; filename=%s.qml' % ( style_name, ) else: response = HttpResponse( response.content, status=response.status_code) return response elif request.method == 'POST': # For people who uses API request if not request.user.has_perm( 'change_resourcebase', layer.get_self_resource()): return HttpResponse( 'User does not have permission to change QML style.', status=403) # Request about adding new QML style form = QGISLayerStyleUploadForm(request.POST, request.FILES) if not form.is_valid(): return TemplateResponse( request, 'qgis_server/forms/qml_style.html', { 'resource': layer, 'style_upload_form': form }, status=400).render() try: uploaded_qml = request.FILES['qml'] # update qml in uploaded media folder # check upload session, is qml file exists? layerfile_set = layer.upload_session.layerfile_set try: qml_layer_file = layerfile_set.get(name='qml') # if it is exists, we need to delete it, because it won't be # managed by geonode qml_layer_file.delete() except LayerFile.DoesNotExist: pass # update qml in QGIS Layer folder content = uploaded_qml.read() qgis_layer = get_object_or_404(QGISServerLayer, layer=layer) with open(qgis_layer.qml_path, mode='w') as f: f.write(content) # construct URL to post new QML style_name = request.POST['name'] style_title = request.POST['title'] if not style_name: # Assign default name name_format = 'style_%Y%m%d%H%M%S' current_time = datetime.datetime.utcnow() style_name = current_time.strftime(name_format) # Add new style style_url = style_add_url(layer, style_name) response = requests.get(style_url) if not (response.status_code == 200 and response.content == 'OK'): try: style_list(layer, internal=False) except BaseException: print 'Failed to fetch styles' return TemplateResponse( request, 'qgis_server/forms/qml_style.html', { 'resource': layer, 'style_upload_form': QGISLayerStyleUploadForm(), 'alert': True, 'alert_message': response.content, 'alert_class': 'alert-danger' }, status=response.status_code).render() # We succeeded on adding new style # Refresh style models try: style_list(layer, internal=False) qgis_style = layer.qgis_layer.styles.get(name=style_name) qgis_style.title = style_title qgis_style.save() alert_message = 'Successfully add style %s' % style_name except BaseException: alert_message = 'Failed to fetch styles' return TemplateResponse( request, 'qgis_server/forms/qml_style.html', { 'resource': layer, 'style_upload_form': form, 'alert': True, 'alert_class': 'alert-success', 'alert_message': alert_message }, status=201).render() except Exception as e: logger.exception(e) return HttpResponseServerError() elif request.method == 'DELETE': # Request to delete particular QML Style if not style_name: # Style name should exists return HttpResponseBadRequest('Style name not provided.') # Handle removing tile-style cache try: style = layer.qgis_layer.styles.get(name=style_name) shutil.rmtree(style.style_tile_cache_path) except BaseException: pass style_url = style_remove_url(layer, style_name) response = requests.get(style_url) if not (response.status_code == 200 and response.content == 'OK'): alert_message = response.content if 'NAME is NOT an existing style.' in response.content: alert_message = '%s is not an existing style' % style_name try: style_list(layer, internal=False) except BaseException: print 'Failed to fetch styles' return TemplateResponse( request, 'qgis_server/forms/qml_style.html', { 'resource': layer, 'style_upload_form': QGISLayerStyleUploadForm(), 'alert': True, 'alert_message': alert_message, 'alert_class': 'alert-danger' }, status=response.status_code).render() # Successfully removed styles # Handle when default style is deleted. # Will be handled by style_list method try: style_list(layer, internal=False) alert_message = 'Successfully deleted style %s' % style_name except BaseException: alert_message = 'Failed to fetch styles' return TemplateResponse( request, 'qgis_server/forms/qml_style.html', { 'resource': layer, 'style_upload_form': QGISLayerStyleUploadForm(), 'alert': True, 'alert_message': alert_message, 'alert_class': 'alert-success' }, status=200).render() return HttpResponseBadRequest()
def test_style_management_url(self): """Test QGIS Server style management url construction.""" filename = os.path.join(gisdata.GOOD_DATA, 'raster/test_grid.tif') uploaded = file_upload(filename) # Get default style # There will always be a default style when uploading a layer style_url = style_get_url(uploaded, 'default', internal=True) response = requests.get(style_url) self.assertEqual(response.status_code, 200) self.assertEqual(response.headers.get('Content-Type'), 'text/xml') # it has to contains qgis tags style_xml = etree.fromstring(response.content) self.assertTrue('qgis' in style_xml.tag) # Add new style # change default style slightly self.assertTrue('WhiteToBlack' not in response.content) self.assertTrue('BlackToWhite' in response.content) new_style_xml = etree.fromstring( response.content.replace('BlackToWhite', 'WhiteToBlack')) new_xml_content = etree.tostring(new_style_xml, pretty_print=True) # save it to qml file, accessible by qgis server qgis_layer = QGISServerLayer.objects.get(layer=uploaded) with open(qgis_layer.qml_path, mode='w') as f: f.write(new_xml_content) style_url = style_add_url(uploaded, 'new_style', internal=True) response = requests.get(style_url) self.assertEqual(response.status_code, 200) self.assertEqual(response.content, 'OK') # Get style list qml_styles = style_list(uploaded, internal=False) expected_style_names = ['default', 'new_style'] actual_style_names = [s.name for s in qml_styles] self.assertEqual(set(expected_style_names), set(actual_style_names)) # Get new style style_url = style_get_url(uploaded, 'new_style', internal=True) response = requests.get(style_url) self.assertEqual(response.status_code, 200) self.assertEqual(response.headers.get('Content-Type'), 'text/xml') self.assertTrue('WhiteToBlack' in response.content) # Set default style style_url = style_set_default_url( uploaded, 'new_style', internal=True) response = requests.get(style_url) self.assertEqual(response.status_code, 200) self.assertEqual(response.content, 'OK') # Remove style style_url = style_remove_url(uploaded, 'new_style', internal=True) response = requests.get(style_url) self.assertEqual(response.status_code, 200) self.assertEqual(response.content, 'OK') # Cleanup uploaded.delete()