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;;
;; TODO resolve the FIXMEs
;;
(defvar mastodon--api-version "v1")
(defcustom mastodon-instance-url "https://mastodon.social"
"Base URL for the Masto instance from which you toot."
:group 'mastodon
:type 'string)
;; TODO
(defcustom mastodon-token-file (concat user-emacs-directory "mastodon.plstore")
"File path where Mastodon access tokens are stored."
:group 'mastodon
:type 'file)
(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--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--get-client-token ()
(plist-get mastodon--client-plist :access_token))
(defun mastodon--client-id-and-secret ()
"Adds client_id and client_secret to `mastodon--client-plist'."
(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)))))
'(("client_name" . "mastodon.el")
("redirect_uris" . "urn:ietf:wg:oauth:2.0:oob")
("scopes" . "read write"))))
(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--api-for (endpoint)
"Returns Mastondon API URL for ENDPOINT."
(concat mastodon-instance-url "/api/" mastodon--api-version "/" endpoint))
(defun mastodon--http-post (url callback args)
"Sends ARGS to URL as a POST request.
Response buffer is passed to the CALLBACK function."
(let ((url-request-method "POST")
(url-request-extra-headers
'(("Content-Type" . "application/x-www-form-urlencoded")))
(url-request-data
(mapconcat (lambda (arg)
(concat (url-hexify-string (car arg))
"="
(url-hexify-string (cdr arg))))
args
"&")))
(url-retrieve url callback)))
(defun mastodon--response-json (status)
"Returns JSON string from `mastodon--http-post' response buffer."
(let ((resp (with-current-buffer (current-buffer)
(buffer-substring-no-properties (point-min) (point-max)))))
(progn
(string-match "\{.*\}" resp)
(match-string 0 resp))))
(defun mastodon--json-hash-table (status)
"Reads JSON string from `mastodon--response-json' into a hash table."
(let ((json-object-type 'hash-table)
(json-array-type 'list)
(json-key-type 'string))
(json-read-from-string (mastodon--response-json status))))
(defun mastodon--access-token ()
"Adds access_token to `mastodon--client-plist'."
(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))
("grant_type" . "password")
("username" . ,(read-string "Email: "))
("password" . ,(read-passwd "Password: ")))))
(defvar mastodon--client-plist (mastodon--read-access-token-file)
"Stores CLIENT_ID, CLIENT_SECRET, and ACCESS_TOKEN.
Reads values from `mastodon-token-file' if they exist.")
(defvar mastodon--token (mastodon--read-or-get-access-token)
"API token for Mastodon.")
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