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| .get_info <- function(armadillo_server) { | |
| info_url <- armadillo_server | |
| urltools::path(info_url) <- "actuator/info" | |
| response <- httr::GET(info_url) | |
| httr::stop_for_status(response, task="fetch server info") | |
| return(httr::content(response)) | |
| } | |
| .discover_endpoint <- function(auth_server) { | |
| openid_config_url <- auth_server | |
| urltools::path(openid_config_url) <- ".well-known/openid-configuration" | |
| response <- httr::GET(openid_config_url) | |
| httr::stop_for_status(response, task="discover OpenID configuration") | |
| configuration <- httr::content(response) | |
| return(httr::oauth_endpoint(request=NULL, | |
| authorize = configuration$authorization_endpoint, | |
| access = configuration$token_endpoint, | |
| user = configuration$userinfo_endpoint, | |
| device = configuration$device_authorization_endpoint, | |
| logout = configuration$end_session_endpoint)) | |
| } | |
| .authenticate_using_device_flow <- | |
| function(endpoint, client_id) { | |
| stopifnot( | |
| inherits(endpoint, "oauth_endpoint"), | |
| is.character(client_id), | |
| is.character(endpoint$device) | |
| ) | |
| response <- httr::POST(endpoint$device, | |
| body = list( | |
| client_id = client_id, | |
| scope = "openid offline_access" | |
| ) | |
| ) | |
| httr::stop_for_status(response, task="initiate OpenID Device Flow authentication") | |
| auth_res <- httr::content(response) | |
| print(paste0( | |
| "We're opening a browser so you can log in with code ", | |
| auth_res$user_code | |
| )) | |
| verification_url <- auth_res$verification_uri_complete | |
| verification_url <- urltools::param_set( | |
| verification_url, | |
| "client_id", client_id | |
| ) | |
| browseURL(verification_url) | |
| response <- httr::RETRY( | |
| url = endpoint$access, | |
| verb = "POST", | |
| pause_base = auth_res$interval, | |
| pause_cap = auth_res$interval, | |
| pause_min = auth_res$interval, | |
| times = auth_res$expires_in / auth_res$interval, | |
| quiet = FALSE, | |
| body = list( | |
| "client_id" = client_id, | |
| "grant_type" = "urn:ietf:params:oauth:grant-type:device_code", | |
| "device_code" = auth_res$device_code | |
| ) | |
| ) | |
| httr::stop_for_status(response, task="retrieve id token") | |
| return(httr::content(response)) | |
| } | |
| #' Get ID Token | |
| #' | |
| #' Get an ID token to log in on a server | |
| #' | |
| #' @param server the URL of the server | |
| #' | |
| #' @return The ID token string | |
| #' | |
| #' @export | |
| getToken <- function(server) { | |
| auth_info <- .get_info(server)$auth | |
| endpoint <- .discover_endpoint(auth_info$issuerUri) | |
| credentials <- .authenticate_using_device_flow( | |
| endpoint, | |
| auth_info$clientId | |
| ) | |
| return(credentials$id_token) | |
| } | |
| app <- httr::oauth_app("armadillo", auth_info$clientId) | |
| token <- httr::oauth2.0_token(endpoint, | |
| app, | |
| use_basic_auth = FALSE, | |
| credentials = token_res) |
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