Github user mcgilman commented on a diff in the pull request: https://github.com/apache/nifi/pull/2047#discussion_r130872958 --- Diff: nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-web/nifi-web-api/src/main/java/org/apache/nifi/web/api/AccessResource.java --- @@ -125,6 +142,160 @@ public Response getLoginConfig(@Context HttpServletRequest httpServletRequest) { return generateOkResponse(entity).build(); } + @GET + @Consumes(MediaType.WILDCARD) + @Produces(MediaType.WILDCARD) + @Path("oidc/request") + @ApiOperation( + value = "Initiates a request to authenticate through the configured OpenId Connect provider." + ) + public void oidcRequest(@Context HttpServletRequest httpServletRequest, @Context HttpServletResponse httpServletResponse) throws Exception { + // only consider user specific access over https + if (!httpServletRequest.isSecure()) { + forwardToMessagePage(httpServletRequest, httpServletResponse, "User authentication/authorization is only supported when running over HTTPS."); + return; + } + + // ensure oidc is enabled + if (!oidcService.isOidcEnabled()) { + forwardToMessagePage(httpServletRequest, httpServletResponse, "OpenId Connect is not configured."); + return; + } + + final String oidcRequestIdentifier = UUID.randomUUID().toString(); + + // generate a cookie to associate this login sequence + final Cookie cookie = new Cookie(OIDC_REQUEST_IDENTIFIER, oidcRequestIdentifier); + cookie.setPath("/"); + cookie.setHttpOnly(true); + cookie.setMaxAge(60); + cookie.setSecure(true); + httpServletResponse.addCookie(cookie); + + // get the state for this request + final State state = oidcService.createState(oidcRequestIdentifier); + + // build the authorization uri + final URI authorizationUri = UriBuilder.fromUri(oidcService.getAuthorizationEndpoint()) --- End diff -- The only value that isn't checked here is the authorization endpoint. The remainder of the checks are done during start up in the `StandardOidcIdentityProvider` constructor. I'll update it to verify the presence of the endpoints that we explicitly invoke.
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