tumblr-gist.el

(require 'gist)
(require 'tumblr)
(require 'http-post-simple)

(defun tumblr-gist-region (begin end &optional private)
  "Post the current region as a new paste in a blog post"
  (interactive "r\nP")
  (gist-region begin end private 'tumblr-gist-callback))

(defun tumblr-gist-callback (status)
  (let* ((url-max-redirections 5)
         (url-request-method "GET")
         (location (concat (cadr status) ".pibb"))
         (gist-buffer (url-retrieve-synchronously location)))
    (message "Fetched %s" location)
    (with-current-buffer gist-buffer
      (search-forward-regexp "\n\n")
      (delete-region (point-min) (point))
      (set-buffer-modified-p nil)
      (let* ((content (buffer-substring (point-min) (point-max)))
             (fixed-content (replace-regexp-in-string 
                             "\\(<pre>\\|</pre>\\)" ""
                             content))
             (title (read-string "Post title: "))
             (tags (read-string "Post tags: ")))
        (tumblr-gist-send-post title tags fixed-content)))))

(defun tumblr-gist-send-post (title tags body)
  "Slightly more detailed variant on the 'tumblr send-post function"
  (http-post-simple tumblr-post-url (list (cons 'email tumblr-email)
                                          (cons 'password tumblr-password)
                                          (cons 'type tumblr-default-type)
                                          (cons 'title title)
                                          (cons 'tags tags)
                                          (cons 'slug title)
                                          (cons 'private "0")
                                          (cons 'body body))
                    'utf-8))

(provide 'tumblr-gist)