Add ein-jupyterhub.el

Per popular request, publishing what I have so far for jupyterhub support, which
is not much. But it may server as a starting point for someone smarter than I.

lisp/ein-jupyterhub.el

@@ -0,0 +1,85 @@
+;;; ein-jupyterhub.el --- Interface to Jupyterhub
+
+;; Copyright (C) 2016 - John Miller
+
+;; Authors: Takafumi Arakaki <aka.tkf at gmail.com>
+;;          John M. Miller <millejoh at mac.com>
+
+;; This file is NOT part of GNU Emacs.
+
+;; ein-jupyterhub.el is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; ein-jupyterhub.el is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with ein-jupyter.el.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+;;;
+;;; An interface to the Jupyterhub login and management API as described in
+;;; http://jupyterhub.readthedocs.io/en/latest/api/index.html
+;;;
+
+;;
+
+;;; Code:
+
+
+(defun ein:hub-url (url-or-port &optional path)
+  (if path
+      (ein:url url-or-port "hub/api" path)
+    (ein:url url-or-port "hub/api")))
+
+(defun ein:jupyterhub-version (url-or-port &optional callback cbargs)
+  (let ((url (ein:hub-url url-or-port)))
+    (ein:query-singleton-ajax
+     (list 'jupyterhub-version url-or-port)
+     url
+     :type "GET"
+     :timeout ein:content-query-timeout
+     :parser #'ein:json-read
+     :success (apply-partially #'ein:jupyterhub-version-success callback cbargs))))
+
+(defun* ein:jupyterhub-version-success (callback cbargs &key data &allow-other-keys)
+  (let ((version (plist-get data :version)))
+    (when callback
+      (apply called-interactively-p-functions data cbargs))))
+
+
+(defun ein:jupyterhub-login (url-or-port username password &optional callback)
+  (let ((url (ein:url url-or-port "hub/login")))
+    (ein:query-singleton-ajax
+     (list 'jupyterhub-login url-or-port)
+     url
+     :type "POST"
+     :data (concat "username=" (url-hexify-string username)
+                   "&password=" (url-hexify-string password))
+     :timeout ein:content-query-timeout
+     :success #'ein:jupyterhub-login-success
+     :status-code '((302 . #'ein:jupyterhub-login-redirect)))))
+
+(defun* ein:jupyterhub-login-redirect (&key data response &allow-other-keys)
+  (message "Login redirect!"))
+
+(defun* ein:jupyterhub-login-success (&key data response &allow-other-keys)
+  response
+  )
+
+(defun ein:jupyterhub-services (url-or-port)
+  (let ((url (ein:hub-url url-or-port "services")))
+    (ein:query-singleton-ajax
+     (list 'jupyterhub-version url-or-port)
+     url
+     :type "GET"
+     :timeout ein:content-query-timeout
+     :parser #'ein:json-read
+     )))
+
+
+(provide 'ein-jupyterhub)