From 96f4b3627b3cbb38b28ba07206fb6196e71e212a Mon Sep 17 00:00:00 2001
From: Johnson Denen <johnson.denen@gmail.com>
Date: Sat, 8 Apr 2017 07:23:07 -0400
Subject: Refactor authorization

---
 lisp/mastodon-auth.el | 120 ++++++++++++++++++++++++++++++++------------------
 1 file changed, 76 insertions(+), 44 deletions(-)

(limited to 'lisp/mastodon-auth.el')

diff --git a/lisp/mastodon-auth.el b/lisp/mastodon-auth.el
index 86665f3..5a52f8c 100644
--- a/lisp/mastodon-auth.el
+++ b/lisp/mastodon-auth.el
@@ -1,54 +1,86 @@
-(defun mastodon--read-access-token-file ()
-  (let* ((plstore (plstore-open mastodon-token-file))
-         (plist (cdr (plstore-get plstore "mastodon"))))
-    (if (plist-get plist :access_token)
-        plist)))
-
-(defun mastodon--access-token-p ()
-  (if (mastodon--get-client-token)
-      t))
-
-(defun mastodon--get-client-token ()
-  (plist-get mastodon--client-plist :access_token))
-
-(defun mastodon--read-or-get-access-token ()
-  (if (mastodon--access-token-p)
-      (mastodon--get-client-token)
-    (progn
-      (mastodon--client-id-and-secret)
-      (sleep-for 1) ;; FIXME
-      (mastodon--access-token)
-      (sleep-for 2) ;; FIXME
-      (mastodon--store-access-token-file)
-      (mastodon--get-client-token))))
-
-(defun mastodon--client-id-and-secret ()
-  "Adds client_id and client_secret to `mastodon--client-plist'."
+(require 'mastodon)
+(require 'mastodon-http)
+
+(defgroup mastodon-auth nil
+  "Authenticate with Mastodon."
+  :group 'mastodon)
+
+(defvar mastodon--client-app-plist nil)
+(defvar mastodon--api-token-string nil)
+
+(defun mastodon--register-client-app-triage (status)
+  (mastodon--http-response-triage status
+                                  (lambda () (let ((client-data (mastodon--json-hash-table)))
+                                               (setq mastodon--client-app-plist
+                                                     `(:client_id
+                                                       ,(gethash "client_id" client-data)
+                                                       :client_secret
+                                                       ,(gethash "client_secret" client-data)))))))
+
+(defun mastodon--register-client-app ()
+  "Adds client_id and client_secret to `mastodon--client-plist'.
+
+  Returns a `plist' with CLIENT_ID and CLIENT_SECRET."
   (mastodon--http-post (mastodon--api-for "apps")
-                       (lambda (status) (let ((client-data (mastodon--json-hash-table status)))
-                                          (setq mastodon--client-plist `(:client_id ,(gethash "client_id" client-data) :client_secret ,(gethash "client_secret" client-data)))))
+                       'mastodon--register-client-app-triage
                        '(("client_name" . "mastodon.el")
                          ("redirect_uris" . "urn:ietf:wg:oauth:2.0:oob")
                          ("scopes" . "read write follow"))))
 
-(defun mastodon--store-access-token-file ()
-  (let ((plstore (plstore-open mastodon-token-file)))
-    (plstore-put plstore "mastodon" nil
-                 `(:client_id
-                   ,(plist-get mastodon--client-plist :client_id)
-                   :client_secret
-                   ,(plist-get mastodon--client-plist :client_secret)
-                   :access_token
-                   ,(plist-get mastodon--client-plist :access_token)))
-    (plstore-save plstore)))
+(defun mastodon--register-and-return-client-app ()
+  (progn
+    (mastodon--register-client-app)
+    mastodon--client-app-plist))
 
-(defun mastodon--access-token ()
-  "Adds access_token to `mastodon--client-plist'."
+(defun mastodon--store-client-id-and-secret ()
+  (let ((client-plist (mastodon--register-and-return-client-app))
+        (plstore (plstore-open mastodon-token-file)))
+    (plstore-put plstore "mastodon" `(:client_id
+                                      ,(plist-get client-plist :client_id)
+                                      :client_secret
+                                      ,(plist-get client-plist :client_secret))
+                 nil)
+    (plstore-save plstore)
+    client-plist))
+
+(defun mastodon--client-app ()
+  (if (plist-get mastodon--client-app-plist :client_secret)
+      mastodon--client-app-plist
+    (let* ((plstore (plstore-open mastodon-token-file))
+           (mastodon (plstore-get plstore "mastodon")))
+      (if mastodon
+          (progn
+            (setq mastodon--client-app-plist (delete "mastodon" mastodon))
+            mastodon--client-app-plist)
+        (progn
+          (setq mastodon--client-app-plist (mastodon--store-client-id-and-secret))
+          mastodon--client-app-plist)))))
+
+(defun mastodon--get-access-token-triage (status)
+  (mastodon--http-response-triage status
+                                  (lambda ()
+                                    (let ((token-data (mastodon--json-hash-table)))
+                                      (progn
+                                        (setq mastodon--api-token-string (gethash "access_token" token-data))
+                                        mastodon--api-token-string)))))
+
+(defun mastodon--get-access-token ()
   (mastodon--http-post (concat mastodon-instance-url "/oauth/token")
-                       (lambda (status) (let ((token-data (mastodon--json-hash-table status)))
-                                          (setq mastodon--client-plist (plist-put mastodon--client-plist :access_token (gethash "access_token" token-data)))))
-                       `(("client_id" . ,(plist-get mastodon--client-plist :client_id))
-                         ("client_secret" . ,(plist-get mastodon--client-plist :client_secret))
+                       'mastodon--get-access-token-triage
+                       `(("client_id" . ,(plist-get (mastodon--client-app) :client_id))
+                         ("client_secret" . ,(plist-get (mastodon--client-app) :client_secret))
                          ("grant_type" . "password")
                          ("username" . ,(read-string "Email: "))
                          ("password" . ,(read-passwd "Password: ")))))
+
+(defun mastodon--access-token ()
+  (if mastodon--api-token-string
+      mastodon--api-token-string
+    (progn
+      (mastodon--get-access-token)
+      (while (not mastodon--api-token-string)
+        (sleep-for 1)
+        (mastodon--access-token))
+      mastodon--api-token-string)))
+
+(provide 'mastodon-auth)
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