X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/0412302971e705a539805711496bc24e374b6f50..ba15fa5da21f4bafd3f90a8d259ea2aae764c77e:/apps/workbench/app/assets/javascripts/models/session_db.js

diff --git a/apps/workbench/app/assets/javascripts/models/session_db.js b/apps/workbench/app/assets/javascripts/models/session_db.js
index 13409d9048..a43cd79545 100644
--- a/apps/workbench/app/assets/javascripts/models/session_db.js
+++ b/apps/workbench/app/assets/javascripts/models/session_db.js
@@ -5,6 +5,7 @@
 window.SessionDB = function() {
     var db = this
     Object.assign(db, {
+        discoveryCache: {},
         loadFromLocalStorage: function() {
             try {
                 return JSON.parse(window.localStorage.getItem('sessions')) || {}
@@ -27,6 +28,17 @@ window.SessionDB = function() {
             })
             return sessions
         },
+        loadLocal: function() {
+            var sessions = db.loadActive()
+            var s = false
+            Object.values(sessions).forEach(function(session) {
+                if (session.isFromRails) {
+                    s = session
+                    return
+                }
+            })
+            return s
+        },
         save: function(k, v) {
             var sessions = db.loadAll()
             sessions[k] = v
@@ -84,7 +96,7 @@ window.SessionDB = function() {
             // If there's a token and baseURL in the location bar (i.e.,
             // we just landed here after a successful login), save it and
             // scrub the location bar.
-            if (!document.location.search.startsWith('?'))
+            if (document.location.search[0] != '?')
                 return
             var params = {}
             document.location.search.slice(1).split('&').map(function(kv) {
@@ -120,6 +132,36 @@ window.SessionDB = function() {
                 })
             })
         },
+        // Return the Workbench base URL advertised by the session's
+        // API server, or a reasonable guess, or (if neither strategy
+        // works out) null.
+        workbenchBaseURL: function(session) {
+            var dd = db.discoveryDoc(session)()
+            if (!dd)
+                // Don't fall back to guessing until we receive the discovery doc
+                return null
+            if (dd.workbenchUrl)
+                return dd.workbenchUrl
+            // Guess workbench.{apihostport} is a Workbench... unless
+            // the host part of apihostport is an IPv4 or [IPv6]
+            // address.
+            if (!session.baseURL.match('://(\\[|\\d+\\.\\d+\\.\\d+\\.\\d+[:/])')) {
+                var wbUrl = session.baseURL.replace('://', '://workbench.')
+                // Remove the trailing slash, if it's there.
+                return wbUrl.slice(-1) == '/' ? wbUrl.slice(0, -1) : wbUrl
+            }
+            return null
+        },
+        // Return a m.stream that will get fulfilled with the
+        // discovery doc from a session's API server.
+        discoveryDoc: function(session) {
+            var cache = db.discoveryCache[session.baseURL]
+            if (!cache) {
+                db.discoveryCache[session.baseURL] = cache = m.stream()
+                m.request(session.baseURL+'discovery/v1/apis/arvados/v1/rest').then(cache)
+            }
+            return cache
+        },
         request: function(session, path, opts) {
             opts = opts || {}
             opts.headers = opts.headers || {}