/
twittering-mode.el
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twittering-mode.el
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;;; -*- indent-tabs-mode: t; tab-width: 8 -*-
;;;
;;; twittering-mode.el --- Major mode for Twitter
;; Copyright (C) 2007, 2009, 2010 Yuto Hayamizu.
;; 2008 Tsuyoshi CHO
;; Author: Y. Hayamizu <y.hayamizu@gmail.com>
;; Tsuyoshi CHO <Tsuyoshi.CHO+develop@Gmail.com>
;; Alberto Garcia <agarcia@igalia.com>
;; Created: Sep 4, 2007
;; Version: 0.9.0
;; Keywords: twitter web
;; URL: http://github.com/hayamiz/twittering-mode/
;; This file 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 2, or (at your option)
;; any later version.
;; This file 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 GNU Emacs; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Commentary:
;; twittering-mode.el is a major mode for Twitter.
;; You can check friends timeline, and update your status on Emacs.
;;; Feature Request:
;; URL : http://twitter.com/d00dle/statuses/577876082
;; * Status Input from Popup buffer and C-cC-c to POST.
;; URL : http://code.nanigac.com/source/view/419
;; * update status for region
;;; Code:
(eval-when-compile (require 'cl))
(require 'xml)
(require 'parse-time)
(when (< emacs-major-version 22)
(require 'un-define)
(set-terminal-coding-system 'utf-8))
(defconst twittering-mode-version "0.9.0")
(defun twittering-mode-version ()
"Display a message for twittering-mode version."
(interactive)
(let ((version-string
(format "twittering-mode-v%s" twittering-mode-version)))
(if (interactive-p)
(message "%s" version-string)
version-string)))
(defconst twittering-max-number-of-tweets-on-retrieval 200
"The maximum number of `twittering-number-of-tweets-on-retrieval'.")
(defvar twittering-number-of-tweets-on-retrieval 20
"*The number of tweets which will be retrieved in one request.
The upper limit is `twittering-max-number-of-tweets-on-retrieval'.")
(defvar twittering-tinyurl-service 'tinyurl
"The service to use. One of 'tinyurl' or 'toly'")
(defvar twittering-tinyurl-services-map
'((tinyurl . "http://tinyurl.com/api-create.php?url=")
(toly . "http://to.ly/api.php?longurl="))
"Alist of tinyfy services")
(defvar twittering-mode-map (make-sparse-keymap))
(defvar twittering-tweet-history nil)
(defvar twittering-user-history nil)
(defvar twittering-timeline-history nil)
(defvar twittering-hashtag-history nil)
(defvar twittering-current-hashtag nil
"A hash tag string currently set. You can set it by calling
`twittering-set-current-hashtag'")
(defvar twittering-timer nil
"Timer object for timeline refreshing will be stored here.
DO NOT SET VALUE MANUALLY.")
(defvar twittering-timer-interval 90
"The interval of auto reloading. You should use 60 or more
seconds for this variable because the number of API call is
limited by the hour.")
(defvar twittering-username nil
"An username of your Twitter account.")
(defvar twittering-username-active nil
"Copy of `twittering-username' for internal use.")
(defvar twittering-password nil
"A password of your Twitter account. Leave it blank is the
recommended way because writing a password in .emacs file is so
dangerous.")
(defvar twittering-password-active nil
"Copy of `twittering-password' for internal use.")
(defvar twittering-last-timeline-retrieved nil)
(defvar twittering-list-index-retrieved nil)
(defvar twittering-new-tweets-count 0
"Number of new tweets when `twittering-new-tweets-hook' is run")
(defvar twittering-new-tweets-hook nil
"Hook run when new twits are received.
You can read `twittering-new-tweets-count' to get the number of new
tweets received when this hook is run.")
(defvar twittering-scroll-mode nil)
(make-variable-buffer-local 'twittering-scroll-mode)
(defvar twittering-jojo-mode nil)
(make-variable-buffer-local 'twittering-jojo-mode)
(defvar twittering-status-format "%i %s, %@:\n %t // from %f%L%r"
"Format string for rendering statuses.
Ex. \"%i %s, %@:\\n %t // from %f%L%r\"
Items:
%s - screen_name
%S - name
%i - profile_image
%d - description
%l - location
%L - \" [location]\"
%r - \" in reply to user\"
%u - url
%j - user.id
%p - protected?
%c - created_at (raw UTC string)
%C{time-format-str} - created_at (formatted with time-format-str)
%@ - X seconds ago
%t - text
%' - truncated
%f - source
%# - id
")
(defvar twittering-retweet-format "RT: %t (via @%s)"
"Format string for retweet.
Items:
%s - screen_name
%t - text
%% - %
")
(defvar twittering-use-show-minibuffer-length t
"*Show current length of minibuffer if this variable is non-nil.")
(defvar twittering-notify-successful-http-get t)
(defvar twittering-use-ssl t
"Use SSL connection if this variable is non-nil.
SSL connections use 'curl' command as a backend.")
(defvar twittering-buffer "*twittering*")
(defun twittering-buffer ()
(twittering-get-or-generate-buffer twittering-buffer))
(defvar twittering-timeline-data nil)
(defvar twittering-timeline-last-update nil)
(defvar twittering-username-face 'twittering-username-face)
(defvar twittering-uri-face 'twittering-uri-face)
;;;
;;; Proxy setting / functions
;;;
(defvar twittering-proxy-use nil)
(defvar twittering-proxy-keep-alive nil)
(defvar twittering-proxy-server nil
"*The proxy server for `twittering-mode'.
If nil, it is initialized on entering `twittering-mode'.
The port number is specified by `twittering-proxy-port'.")
(defvar twittering-proxy-port nil
"*The port number of a proxy server for `twittering-mode'.
If nil, it is initialized on entering `twittering-mode'.
The server is specified by `twittering-proxy-server'.")
(defvar twittering-proxy-user nil)
(defvar twittering-proxy-password nil)
(defun twittering-find-proxy (scheme)
"Find proxy server and its port for `twittering-mode' and returns
a cons pair of them.
SCHEME must be \"http\" or \"https\"."
(cond
((require 'url-methods nil t)
(url-scheme-register-proxy scheme)
(let* ((proxy-service (assoc scheme url-proxy-services))
(proxy (if proxy-service (cdr proxy-service) nil)))
(if (and proxy
(string-match "^\\([^:]+\\):\\([0-9]+\\)$" proxy))
(let* ((host (match-string 1 proxy))
(port (string-to-number (match-string 2 proxy))))
(cons host port))
nil)))
(t
(let* ((env-var (concat scheme "_proxy"))
(env-proxy (or (getenv (upcase env-var))
(getenv (downcase env-var))))
(default-port (if (string= "https" scheme) "443" "80")))
(if (and env-proxy
(string-match
"^\\(https?://\\)?\\([^:/]+\\)\\(:\\([0-9]+\\)\\)?/?$"
env-proxy))
(let* ((host (match-string 2 env-proxy))
(port-str (or (match-string 4 env-proxy) default-port))
(port (string-to-number port-str)))
(cons host port))
nil)))))
(defun twittering-setup-proxy ()
(unless (and twittering-proxy-server twittering-proxy-port)
(let ((proxy-info (or (if twittering-use-ssl
(twittering-find-proxy "https"))
(twittering-find-proxy "http"))))
(when proxy-info
(let ((host (car proxy-info))
(port (cdr proxy-info)))
(setq twittering-proxy-server host)
(setq twittering-proxy-port port)))))
(when (and twittering-proxy-use
(null twittering-proxy-server)
(null twittering-proxy-port))
(message "Disabling proxy due to lack of configuration.")
(setq twittering-proxy-use nil)))
(defun twittering-toggle-proxy ()
(interactive)
(setq twittering-proxy-use
(not twittering-proxy-use))
(twittering-update-mode-line)
(message (if twittering-proxy-use "Use Proxy:on" "Use Proxy:off")))
;;;
;;; to show image files
;;;
(defvar twittering-wget-buffer "*twittering-wget-buffer*")
(defun twittering-wget-buffer ()
(twittering-get-or-generate-buffer twittering-wget-buffer))
(defvar twittering-tmp-dir
(expand-file-name (concat "twmode-images-" (user-login-name))
temporary-file-directory))
(defvar twittering-icon-mode nil
"You MUST NOT CHANGE this variable directly.
You should change through function'twittering-icon-mode'")
(make-variable-buffer-local 'twittering-icon-mode)
(defun twittering-icon-mode (&optional arg)
"Toggle display of icon images on timelines.
With a numeric argument, if the argument is positive, turn on
icon mode; otherwise, turn off icon mode."
(interactive)
(setq twittering-icon-mode
(if twittering-icon-mode
(if (null arg)
nil
(> (prefix-numeric-value arg) 0))
(when (or (null arg)
(and arg (> (prefix-numeric-value arg) 0)))
(when (file-writable-p twittering-tmp-dir)
(progn
(if (not (file-directory-p twittering-tmp-dir))
(make-directory twittering-tmp-dir))
t)))))
(twittering-update-mode-line)
(twittering-render-timeline))
(defvar twittering-image-stack nil)
(defvar twittering-image-type-cache nil)
(defvar twittering-convert-program (executable-find "convert"))
(defvar twittering-convert-fix-size 48)
(defvar twittering-use-convert (not (null (executable-find "convert")))
"*This variable makes a sense only if `twittering-convert-fix-size'
is non-nil. If this variable is non-nil, icon images are converted by
invoking \"convert\". Otherwise, cropped images are displayed.")
(defvar twittering-use-wget nil
"*If non-nil, icon images are retrieved by invoking \"wget\".
Otherwise, they are retrieved by `url-retrieve'.")
(defun twittering-image-type (file-name)
(if (and (not (assoc file-name twittering-image-type-cache))
(file-exists-p file-name))
(if (and twittering-convert-fix-size twittering-use-convert)
(progn
(with-temp-buffer
(let ((coding-system-for-read 'raw-text)
(coding-system-for-write 'binary))
(call-process twittering-convert-program
nil (current-buffer) nil
file-name "-resize"
(format "%dx%d" twittering-convert-fix-size
twittering-convert-fix-size)
"png:-")
(write-region (point-min) (point-max) file-name)))
(add-to-list 'twittering-image-type-cache `(,file-name . png)))
(let* ((file-output (shell-command-to-string (concat "file -b " file-name)))
(file-type (cond
((string-match "JPEG" file-output) 'jpeg)
((string-match "PNG" file-output) 'png)
((string-match "GIF" file-output) 'gif)
((and twittering-use-convert
(string-match "bitmap" file-output))
(let ((coding-system-for-read 'raw-text)
(coding-system-for-write 'binary))
(with-temp-buffer
(set-buffer-multibyte nil)
(insert-file-contents file-name)
(call-process-region
(point-min) (point-max)
twittering-convert-program
t (current-buffer) nil
"bmp:-" "png:-")
(write-region (point-min) (point-max)
file-name)))
'png)
((string-match "\\.jpe?g" file-name) 'jpeg)
((string-match "\\.png" file-name) 'png)
((string-match "\\.gif" file-name) 'gif)
(t nil))))
(add-to-list 'twittering-image-type-cache `(,file-name . ,file-type)))))
(cdr (assoc file-name twittering-image-type-cache)))
;;;
;;; functions
;;;
(defun twittering-get-status-url (username id)
"Generate status URL."
(format "http://twitter.com/%s/statuses/%s" username id))
(defun twittering-user-agent-default-function ()
"Twittering mode default User-Agent function."
(concat "Emacs/"
(int-to-string emacs-major-version) "." (int-to-string
emacs-minor-version)
" "
"Twittering-mode/"
twittering-mode-version))
(defvar twittering-sign-simple-string nil)
(defun twittering-sign-string-default-function ()
"Tweet append sign string:simple "
(if twittering-sign-simple-string
(concat " [" twittering-sign-simple-string "]")
""))
(defvar twittering-user-agent-function 'twittering-user-agent-default-function)
(defvar twittering-sign-string-function 'twittering-sign-string-default-function)
(defun twittering-user-agent ()
"Return User-Agent header string."
(funcall twittering-user-agent-function))
(defun twittering-sign-string ()
"Return Tweet sign string."
(funcall twittering-sign-string-function))
;;;
;;; Utility functions
;;;
(defun twittering-get-or-generate-buffer (buffer)
(if (bufferp buffer)
(if (buffer-live-p buffer)
buffer
(generate-new-buffer (buffer-name buffer)))
(if (stringp buffer)
(or (get-buffer buffer)
(generate-new-buffer buffer)))))
(defun assocref (item alist)
(cdr (assoc item alist)))
(defmacro list-push (value listvar)
`(setq ,listvar (cons ,value ,listvar)))
(defmacro case-string (str &rest clauses)
`(cond
,@(mapcar
(lambda (clause)
(let ((keylist (car clause))
(body (cdr clause)))
`(,(if (listp keylist)
`(or ,@(mapcar (lambda (key) `(string-equal ,str ,key))
keylist))
't)
,@body)))
clauses)))
;; If you use Emacs21, decode-char 'ucs will fail unless Mule-UCS is loaded.
;; TODO: Show error messages if Emacs 21 without Mule-UCS
(defun twittering-ucs-to-char (num)
(if (functionp 'ucs-to-char)
(ucs-to-char num)
(decode-char 'ucs num)))
(defun twittering-setftime (fmt string uni)
(format-time-string fmt ; like "%Y-%m-%d %H:%M:%S"
(apply 'encode-time (parse-time-string string))
uni))
(defun twittering-local-strftime (fmt string)
(twittering-setftime fmt string nil))
(defun twittering-global-strftime (fmt string)
(twittering-setftime fmt string t))
(defun twittering-last-host ()
(twittering-convert-last-timeline-retrieved)
(car twittering-last-timeline-retrieved))
(defun twittering-last-method ()
(twittering-convert-last-timeline-retrieved)
(nth 1 twittering-last-timeline-retrieved))
(defun twittering-convert-last-timeline-retrieved ()
"Adjust variable to keep a backward compatibility."
(and (stringp twittering-last-timeline-retrieved)
(setq twittering-last-timeline-retrieved
`("twitter.com" ,twittering-last-timeline-retrieved))))
;;;
;;; Timeline spec functions
;;;
;;; Timeline spec as S-expression
;;; - (user USER): timeline of the user whose name is USER. USER is a string.
;;; - (list USER LIST):
;;; the list LIST of the user USER. LIST and USER are strings.
;;;
;;; - (direct-messages): received direct messages.
;;; - (direct-messages-sent): sent direct messages.
;;; - (friends): friends timeline.
;;; - (home): home timeline.
;;; - (mentions): mentions timeline.
;;; mentions (status containing @username) for the authenticating user.
;;; - (public): public timeline.
;;; - (replies): replies.
;;; - (retweeted_by_me): retweets posted by the authenticating user.
;;; - (retweeted_to_me): retweets posted by the authenticating user's friends.
;;; - (retweets_of_me):
;;; tweets of the authenticated user that have been retweeted by others.
;;;
;;; - (search STRING): the result of searching with query STRING.
;;; - (merge SPEC1 SPEC2 ...): result of merging timelines SPEC1 SPEC2 ...
;;; - (filter REGEXP SPEC): timeline filtered with REGEXP.
;;;
;;; Timeline spec string
;;;
;;; SPEC ::= PRIMARY | COMPOSITE
;;; PRIMARY ::= USER | LIST | DIRECT-MESSSAGES | DIRECT-MESSSAGES-SENT
;;; | FRIENDS | HOME | MENTIONS | PUBLIC | REPLIES
;;; | RETWEETED_BY_ME | RETWEETED_TO_ME | RETWEETS_OF_ME
;;; COMPOSITE ::= MERGE | FILTER
;;;
;;; USER ::= /[a-zA-Z0-9_-]+/
;;; LIST ::= USER "/" LISTNAME
;;; LISTNAME ::= /[a-zA-Z0-9_-]+/
;;; DIRECT-MESSSAGES ::= ":direct-messages"
;;; DIRECT-MESSSAGES-SENT ::= ":direct-messages-sent"
;;; FRIENDS ::= ":friends"
;;; HOME ::= ":home" | "~"
;;; MENTIONS ::= ":mentions"
;;; PUBLIC ::= ":public"
;;; REPLIES ::= ":replies" | "@"
;;; RETWEETED_BY_ME ::= ":retweeted_by_me"
;;; RETWEETED_TO_ME ::= ":retweeted_to_me"
;;; RETWEETS_OF_ME ::= ":retweets_of_me"
;;;
;;; MERGE ::= "(" MERGED_SPECS ")"
;;; MERGED_SPECS ::= SPEC | SPEC "+" MERGED_SPECS
;;; FILTER ::= ":filter/" REGEXP "/" SPEC
;;;
(defun twittering-timeline-spec-to-string (timeline-spec &optional shorten)
"Convert TIMELINE-SPEC into a string.
If SHORTEN is non-nil, the abbreviated expression will be used."
(let ((type (car timeline-spec))
(value (cdr timeline-spec)))
(cond
;; user
((eq type 'user) (car value))
;; list
((eq type 'list) (concat (car value) "/" (cadr value)))
;; simple
((eq type 'direct-messages) ":direct-messages")
((eq type 'direct-messages-sent) ":direct-messages-sent")
((eq type 'friends) ":friends")
((eq type 'home) (if shorten "~" ":home"))
((eq type 'mentions) ":mentions")
((eq type 'public) ":public")
((eq type 'replies) (if shorten "@" ":replies"))
((eq type 'retweeted_by_me) ":retweeted_by_me")
((eq type 'retweeted_to_me) ":retweeted_to_me")
((eq type 'retweets_of_me) ":retweets_of_me")
;; composite
((eq type 'filter)
(let ((regexp (car value))
(spec (cadr value)))
(concat ":filter/"
(replace-regexp-in-string "/" "\\/" regexp nil t)
"/"
(twittering-timeline-spec-to-string spec))))
((eq type 'merge)
(concat "("
(mapconcat 'twittering-timeline-spec-to-string value "+" )
")"))
(t
nil))))
(defun twittering-extract-timeline-spec (str)
"Extract one timeline spec from STR.
Return cons of the spec and the rest string."
(cond
((string-match "^\\([a-zA-Z0-9_-]+\\)/\\([a-zA-Z0-9_-]+\\)\\(.*\\)$" str)
(let ((user (match-string 1 str))
(listname (match-string 2 str))
(rest (match-string 3 str)))
`((list ,user ,listname) . ,rest)))
((string-match "^\\([a-zA-Z0-9_-]+\\)\\(.*\\)$" str)
(let ((user (match-string 1 str))
(rest (match-string 2 str)))
`((user ,user) . ,rest)))
((string-match "^~" str)
`((home) . ,(substring str 1)))
((string-match "^@" str)
`((replies) . ,(substring str 1)))
((string-match "^:\\([a-z_-]+\\)\\(.*\\)$" str)
(let ((type (match-string 1 str))
(following (match-string 2 str))
(alist '(("direct-messages" . direct-messages)
("direct-messages-sent" . direct-messages-sent)
("friends" . friends)
("home" . home)
("mentions" . mentions)
("public" . public)
("replies" . replies)
("retweeted_by_me" . retweeted_by_me)
("retweeted_to_me" . retweeted_to_me)
("retweets_of_me" . retweets_of_me))))
(cond
((assoc type alist)
(let ((first-spec (list (cdr (assoc type alist)))))
(cons first-spec following)))
((string= type "filter")
(if (string-match "^:filter/\\(.*?[^\\]\\)??/\\(.*\\)$" str)
(let* ((escaped-regexp (or (match-string 1 str) ""))
(regexp
(replace-regexp-in-string "\\\\/" "/"
escaped-regexp nil t))
(following (match-string 2 str))
(pair (twittering-extract-timeline-spec following))
(spec (car pair))
(rest (cdr pair)))
`((filter ,regexp ,spec) . ,rest))
(error (format "\"%s\" has no valid regexp." str))
nil))
(t
nil))))
((string-match "^(" str)
(let* ((rest (concat "+" (substring str 1)))
(result '()))
(while (and rest (string-match "^\\+" rest))
(let* ((pair (twittering-extract-timeline-spec (substring rest 1)))
(spec (car pair))
(next-rest (cdr pair)))
(setq result (cons spec result))
(setq rest next-rest)))
(if (and rest (string-match "^)" rest))
(let ((spec-list
(apply 'append
(mapcar (lambda (x) (if (eq 'merge (car x))
(cdr x)
(list x)))
(reverse result)))))
(if (= 1 (length spec-list))
`(,(car spec-list) . ,(substring rest 1))
`((merge ,@spec-list) . ,(substring rest 1))))
(if rest
(error (format "\"%s\" lacks a closing parenthesis." str)))
nil)))
(t
nil)
))
(defun twittering-string-to-timeline-spec (spec-str)
"Convert STR into a timeline spec.
Return nil if STR is invalid as a timeline spec."
(let ((result-pair (twittering-extract-timeline-spec spec-str)))
(if (and result-pair (string= "" (cdr result-pair)))
(car result-pair)
nil)))
(defun twittering-timeline-spec-primary-p (spec)
"Return non-nil if SPEC is a primary timeline spec.
`primary' means that the spec is not a composite timeline spec such as
`filter' and `merge'."
(let ((primary-spec-types
'(user list
direct-messages direct-messages-sent
friends home mentions public replies
retweeted_by_me retweeted_to_me retweets_of_me))
(type (car spec)))
(memq type primary-spec-types)))
(defun twittering-timeline-spec-to-host-method (spec)
(if (twittering-timeline-spec-primary-p spec)
(let ((type (car spec))
(value (cdr spec)))
(cond
((eq type 'user)
(let ((username (car value)))
`("twitter.com" ,(concat "statuses/user_timeline/" username))))
((eq type 'list)
(let ((username (car value))
(list-name (cadr value)))
`("api.twitter.com"
,(concat "1/" username "/lists/" list-name "/statuses" ))))
((or (eq type 'direct-messages)
(eq type 'direct-messages-sent))
(error (format "%s has not been supported yet." type)))
((eq type 'friends)
'("twitter.com" "statuses/friends_timeline"))
((eq type 'home)
'("api.twitter.com" "1/statuses/home_timeline"))
((eq type 'mentions)
'("twitter.com" "statuses/mentions"))
((eq type 'public)
'("twitter.com" "statuses/public_timeline"))
((eq type 'replies)
'("twitter.com" "statuses/replies"))
((eq type 'retweeted_by_me)
'("api.twitter.com" "1/statuses/retweeted_by_me"))
((eq type 'retweeted_to_me)
'("api.twitter.com" "1/statuses/retweeted_to_me"))
((eq type 'retweets_of_me)
'("api.twitter.com" "1/statuses/retweets_of_me"))
(t
(error "Invalid timeline spec.")
nil)))
nil))
(defun twittering-host-method-to-timeline-spec(host method)
(cond
((or (not (stringp host)) (not (stringp method))) nil)
((string= host "twitter.com")
(cond
((string= method "statuses/friends_timeline") '(friends))
((string= method "statuses/mentions") '(mentions))
((string= method "statuses/replies") '(replies))
((string= method "statuses/public_timeline") '(public_timeline))
((string= method "statuses/user_timeline")
`(user ,(twittering-get-username)))
((string-match "^statuses/user_timeline/\\(.+\\)$" method)
`(user ,(match-string-no-properties 1 method)))
(t nil)))
((string= host "api.twitter.com")
(cond
((string= method "1/statuses/home_timeline") '(home))
((string= method "1/statuses/retweeted_by_me") '(retweeted_by_me))
((string= method "1/statuses/retweeted_to_me") '(retweeted_to_me))
((string= method "1/statuses/retweets_of_me") '(retweets_of_me))
((string-match "^1/\\([^/]+\\)/lists/\\([^/]+\\)/statuses" method)
(let ((username (match-string-no-properties 1 method))
(listname (match-string-no-properties 2 method)))
`(list ,username ,listname)))
(t nil)))
(t nil)))
(defun twittering-last-timeline-spec ()
(let ((host (twittering-last-host))
(method (twittering-last-method)))
(when (and host method)
(twittering-host-method-to-timeline-spec host method))))
(defun twittering-last-timeline-spec-string ()
(let ((spec (twittering-last-timeline-spec)))
(if spec
(twittering-timeline-spec-to-string spec t)
nil)))
(defun twittering-add-timeline-history (&optional timeline-spec)
(let* ((spec (or timeline-spec (twittering-last-timeline-spec)))
(spec-string (twittering-timeline-spec-to-string spec t)))
(when spec-string
(when (or (null twittering-timeline-history)
(not (string= spec-string (car twittering-timeline-history))))
(if (functionp 'add-to-history)
(add-to-history 'twittering-timeline-history spec-string)
(setq twittering-timeline-history
(cons spec-string twittering-timeline-history)))))))
;;;
;;; Debug mode
;;;
(defvar twittering-debug-mode nil)
(defvar twittering-debug-buffer "*debug*")
(defun twittering-debug-buffer ()
(twittering-get-or-generate-buffer twittering-debug-buffer))
(defmacro debug-print (obj)
(let ((obsym (gensym)))
`(let ((,obsym ,obj))
(if twittering-debug-mode
(with-current-buffer (twittering-debug-buffer)
(insert "[debug] ")
(insert (prin1-to-string ,obsym))
(newline)
,obsym)
,obsym))))
(defun debug-printf (fmt &rest args)
(when twittering-debug-mode
(with-current-buffer (twittering-debug-buffer)
(insert (concat "[debug] " (apply 'format fmt args)))
(newline))))
(defun twittering-debug-mode ()
(interactive)
(setq twittering-debug-mode
(not twittering-debug-mode))
(message (if twittering-debug-mode "debug mode:on" "debug mode:off")))
;;;
;;; keymap
;;;
(if twittering-mode-map
(let ((km twittering-mode-map))
(define-key km "\C-c\C-f" 'twittering-friends-timeline)
(define-key km "\C-c\C-r" 'twittering-replies-timeline)
(define-key km "\C-c\C-g" 'twittering-public-timeline)
(define-key km "\C-c\C-u" 'twittering-user-timeline)
(define-key km "\C-c\C-s" 'twittering-update-status-interactive)
(define-key km "\C-c\C-e" 'twittering-erase-old-statuses)
(define-key km "\C-c\C-m" 'twittering-retweet)
(define-key km "\C-c\C-h" 'twittering-set-current-hashtag)
(define-key km "\C-m" 'twittering-enter)
(define-key km "\C-c\C-l" 'twittering-update-lambda)
(define-key km [mouse-1] 'twittering-click)
(define-key km "\C-c\C-v" 'twittering-view-user-page)
(define-key km "g" 'twittering-current-timeline)
(define-key km "d" 'twittering-direct-message)
(define-key km "v" 'twittering-other-user-timeline)
(define-key km "V" 'twittering-visit-timeline)
(define-key km "L" 'twittering-other-user-list-interactive)
;; (define-key km "j" 'next-line)
;; (define-key km "k" 'previous-line)
(define-key km "j" 'twittering-goto-next-status)
(define-key km "k" 'twittering-goto-previous-status)
(define-key km "l" 'forward-char)
(define-key km "h" 'backward-char)
(define-key km "0" 'beginning-of-line)
(define-key km "^" 'beginning-of-line-text)
(define-key km "$" 'end-of-line)
(define-key km "n" 'twittering-goto-next-status-of-user)
(define-key km "p" 'twittering-goto-previous-status-of-user)
(define-key km "\C-i" 'twittering-goto-next-thing)
(define-key km "\M-\C-i" 'twittering-goto-previous-thing)
(define-key km [backtab] 'twittering-goto-previous-thing)
(define-key km [backspace] 'backward-char)
(define-key km "G" 'end-of-buffer)
(define-key km "H" 'beginning-of-buffer)
(define-key km "i" 'twittering-icon-mode)
(define-key km "s" 'twittering-scroll-mode)
(define-key km "t" 'twittering-toggle-proxy)
(define-key km "\C-c\C-p" 'twittering-toggle-proxy)
(define-key km "q" 'twittering-suspend)
nil))
(defun twittering-keybind-message ()
(let ((important-commands
'(("Timeline" . twittering-friends-timeline)
("Replies" . twittering-replies-timeline)
("Update status" . twittering-update-status-interactive)
("Next" . twittering-goto-next-status)
("Prev" . twittering-goto-previous-status))))
(mapconcat (lambda (command-spec)
(let ((descr (car command-spec))
(command (cdr command-spec)))
(format "%s: %s" descr (key-description
(where-is-internal
command
overriding-local-map t)))))
important-commands ", ")))
;; (run-with-idle-timer
;; 0.1 t
;; '(lambda ()
;; (when (equal (buffer-name (current-buffer)) twittering-buffer)
;; (message (twittering-keybind-message)))))
(defvar twittering-mode-syntax-table nil "")
(if twittering-mode-syntax-table
()
(setq twittering-mode-syntax-table (make-syntax-table))
;; (modify-syntax-entry ? "" twittering-mode-syntax-table)
(modify-syntax-entry ?\" "w" twittering-mode-syntax-table)
)
(defun twittering-mode-init-variables ()
;; (make-variable-buffer-local 'variable)
;; (setq variable nil)
(font-lock-mode -1)
(defface twittering-username-face
`((t nil)) "" :group 'faces)
(copy-face 'font-lock-string-face 'twittering-username-face)
(set-face-attribute 'twittering-username-face nil :underline t)
(defface twittering-uri-face
`((t nil)) "" :group 'faces)
(set-face-attribute 'twittering-uri-face nil :underline t)
;; (add-to-list 'minor-mode-alist '(twittering-icon-mode " tw-icon"))
;; (add-to-list 'minor-mode-alist '(twittering-scroll-mode " tw-scroll"))
;; (add-to-list 'minor-mode-alist '(twittering-jojo-mode " tw-jojo"))
(setq twittering-username-active twittering-username)
(setq twittering-password-active twittering-password)
(twittering-setup-proxy)
)
(defvar twittering-mode-string "twittering-mode")
(defvar twittering-mode-hook nil
"Twittering-mode hook.")
(defun twittering-update-mode-line ()
"Update mode line"
(let ((enabled-options nil)
(spec-string (twittering-last-timeline-spec-string)))
(when twittering-jojo-mode
(push "jojo" enabled-options))
(when twittering-icon-mode
(push "icon" enabled-options))
(when twittering-scroll-mode
(push "scroll" enabled-options))
(when twittering-proxy-use
(push "proxy" enabled-options))
(when twittering-use-ssl
(push "ssl" enabled-options))
(setq mode-name
(concat twittering-mode-string ":" spec-string
(if enabled-options
(concat "["
(mapconcat 'identity enabled-options ",")
"]")
""))))
(force-mode-line-update)
)
;;;
;;; Basic HTTP functions
;;;
(defun twittering-find-curl-program ()
"Returns an appropriate 'curl' program pathname or nil if not found."
(or (executable-find "curl")
(let ((windows-p (find system-type '(windows-nt cygwin)))
(curl.exe
(expand-file-name
"curl.exe"
(expand-file-name
"win-curl"
(file-name-directory (symbol-file 'twit))))))
(and windows-p
(file-exists-p curl.exe) curl.exe))))
(defun twittering-start-http-session (method headers host port path parameters &optional noninteractive sentinel)
"
METHOD : http method
HEADERS : http request heades in assoc list
HOST : remote host name
PORT : destination port number. nil means default port(http: 80, https: 443)
PATH : http request path
PARAMETERS: http request parameters (query string)
"
(block nil
(unless (find method '("POST" "GET") :test 'equal)
(error (format "Unknown HTTP method: %s" method)))
(unless (string-match "^/" path)
(error (format "Invalid HTTP path: %s" path)))
(unless (assoc "Host" headers)
(setq headers (cons `("Host" . ,host) headers)))
(unless (assoc "User-Agent" headers)
(setq headers (cons `("User-Agent" . ,(twittering-user-agent))
headers)))
(let ((curl-program (twittering-find-curl-program)))
(when twittering-use-ssl
(cond
((not curl-program)
(if (yes-or-no-p "HTTPS(SSL) is not available because 'cURL' does not exist. Use HTTP instead?")
(progn (setq twittering-use-ssl nil)
(twittering-update-mode-line))
(message "Request canceled")
(return)))
((not (with-temp-buffer
(call-process curl-program
nil (current-buffer) nil
"--version")
(goto-char (point-min))
(search-forward-regexp
"^Protocols: .*https" nil t)))
(if (yes-or-no-p "HTTPS(SSL) is not available because your 'cURL' cannot use HTTPS. Use HTTP instead?")
(progn (setq twittering-use-ssl nil)
(twittering-update-mode-line))
(message "Request canceled")
(return)))))
(if twittering-use-ssl
(twittering-start-http-ssl-session
curl-program method headers host port path parameters
noninteractive sentinel)
(twittering-start-http-non-ssl-session
method headers host port path parameters
noninteractive sentinel)))))
;;; FIXME: file name is hard-coded. More robust way is desired.
(defun twittering-ensure-ca-cert ()
"Create a CA certificate file if it does not exist, and return
its file name."
(let ((file-name (expand-file-name
(format "twmode-twitter-cacert-%s.pem"
(user-login-name))
temporary-file-directory)))
(with-temp-file file-name
(insert "-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----"))
file-name))
(defun twittering-start-http-ssl-session (curl-program method headers host port path parameters &optional noninteractive sentinel)
;; TODO: use curl
(let* ((request (twittering-make-http-request
method headers host port path parameters))
(headers (if (assoc "Expect" headers)
headers
(cons '("Expect" . "") headers)))
(curl-args
`("--include" "--silent"
,@(mapcan (lambda (pair)
(list "-H"
(format "%s: %s"
(car pair) (cdr pair))))
headers)
"--cacert"
,(twittering-ensure-ca-cert))))
(when twittering-proxy-use
(nconc curl-args `("-x" ,(format "%s:%s" twittering-proxy-server
twittering-proxy-port)))
(when (and twittering-proxy-user
twittering-proxy-password)
(nconc curl-args `("-U" ,(format "%s:%s" twittering-proxy-user
twittering-proxy-password)))))
(flet ((request (key) (funcall request key)))
(nconc curl-args `(,(if parameters
(concat (request :uri) "?"
(request :query-string))
(request :uri))))
(when (string-equal "POST" method)
(nconc curl-args
`(,@(mapcan (lambda (pair)
(list
"-d"