Parsing artifact URI, component URI, and configuration from Doors Next 7.0.3 URL

I am developing an OpenSocial widget for Doors Next Generation that is deployed in Jazz. My widget will allow for comparing the current module that is opened with that same module in different stream/configuration. To do this, my widget will have an input called "Module Comparison URL" where the user will put the Doors next URL for the module in the other stream. The user would obtain this URL from opening the module in the other stream, and then copying the URL that is in the browser. I was then going to parse out the artifact URI, component URI, and configuration URI from this URL by looking for the parameters below in bold to use for API calls since I noticed that the Doors Next URLs have the following pattern: https//server/rmartifactURI=artifactURIvalue&componentURI=componentURIvalue&vvc.configuration=configURIvalue. Is this a safe assumption to make?