/
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 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")
(defconst twittering-max-number-of-tweets-on-retrieval 200
"The maximum number of `twittering-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")
(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)))
(defvar twittering-mode-map (make-sparse-keymap))
(defvar twittering-timer nil "Timer object for timeline refreshing will be
stored here. DO NOT SET VALUE MANUALLY.")
(defvar twittering-tweet-history nil)
(defvar twittering-user-history nil)
(defvar twittering-hashtag-history nil)
(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-current-hashtag nil
"A hash tag string currently set. You can set it by calling
`twittering-set-current-hashtag'")
(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-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)
(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 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))))
(defun assocref (item alist)
(cdr (assoc item alist)))
(defmacro list-push (value listvar)
`(setq ,listvar (cons ,value ,listvar)))
;;; Proxy
(defvar twittering-proxy-use nil)
(defvar twittering-proxy-keep-alive nil)
(defvar twittering-proxy-server nil)
(defvar twittering-proxy-port 8080)
(defvar twittering-proxy-user nil)
(defvar twittering-proxy-password nil)
(defun twittering-toggle-proxy () ""
(interactive)
(setq twittering-proxy-use
(not twittering-proxy-use))
(twittering-update-mode-line)
(message "%s %s"
"Use Proxy:"
(if twittering-proxy-use
"on" "off")))
(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))
;;; 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))
(defun twittering-scroll-mode (&optional arg)
(interactive)
(setq twittering-scroll-mode
(if (null arg)
(not twittering-scroll-mode)
(> (prefix-numeric-value arg) 0)))
(twittering-update-mode-line))
(defun twittering-jojo-mode (&optional arg)
(interactive)
(setq twittering-jojo-mode
(if (null arg)
(not twittering-jojo-mode)
(> (prefix-numeric-value arg) 0)))
(twittering-update-mode-line))
(defvar twittering-image-stack nil)
(defvar twittering-image-type-cache nil)
(defvar twittering-convert-program (executable-find "convert"))
(defvar twittering-convert-fix-size nil)
(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)
(let ((tmpfile (make-temp-file "emacstwit" nil ".png")))
(let ((coding-system-for-read 'raw-text)
(coding-system-for-write 'binary))
(call-process twittering-convert-program nil nil nil
file-name "-resize"
(format "%dx%d" twittering-convert-fix-size
twittering-convert-fix-size)
tmpfile)
(rename-file tmpfile file-name t))
(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)))
(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))
(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")))
(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-other-user-timeline-interactive)
(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)
)
(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)))
(defvar twittering-mode-string "twittering-mode")
(defvar twittering-mode-hook nil
"Twittering-mode hook.")
(defun twittering-mode ()
"Major mode for Twitter
\\{twittering-mode-map}"
(interactive)
(switch-to-buffer (twittering-buffer))
(kill-all-local-variables)
(twittering-mode-init-variables)
(use-local-map twittering-mode-map)
(setq major-mode 'twittering-mode)
(twittering-update-mode-line)
(set-syntax-table twittering-mode-syntax-table)
(run-hooks 'twittering-mode-hook)
(font-lock-mode -1)
(twittering-stop)
(twittering-start))
(defun twittering-update-mode-line ()
"Update mode line"
(let (enabled-options)
(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
(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"
(format "%s=%s"
(twittering-percent-encode
(car pair))
(twittering-percent-encode
(cdr pair)))))
parameters)))))
(debug-print curl-args)
(lexical-let ((temp-buffer
(generate-new-buffer "*twmode-http-buffer*"))
(sentinel sentinel))
(let ((curl-process
(apply 'start-process
"*twmode-curl*"
temp-buffer
curl-program
curl-args)))
(set-process-sentinel
curl-process
(lambda (&rest args)
(apply sentinel temp-buffer noninteractive args))))))
)
;; TODO: proxy
(defun twittering-start-http-non-ssl-session
(method headers host port path parameters
&optional noninteractive sentinel)
(let ((request (twittering-make-http-request
method headers host port path parameters)))
(flet ((request (key) (funcall request key)))
(let* ((request-str
(format "%s %s%s HTTP/1.1\r\n%s\r\n\r\n"
(request :method)
(request :uri)
(if parameters (concat "?" (request :query-string))
"")
(request :headers-string)))
(server (if twittering-proxy-use
twittering-proxy-server
(request :host)))
(port (if twittering-proxy-use
twittering-proxy-port
(request :port)))
(temp-buffer (generate-new-buffer "*twmode-http-buffer*"))
(proc (open-network-stream
"network-connection-process" temp-buffer server port))
)
(lexical-let ((temp-buffer temp-buffer)
(sentinel sentinel)
(noninteractive noninteractive))
(set-process-sentinel
proc
(lambda (&rest args)
(apply sentinel temp-buffer noninteractive args))))
(debug-print request-str)
(process-send-string proc request-str))))
)
;;; TODO: proxy
(defun twittering-make-http-request
(method headers host port path parameters)
"Returns an anonymous function, which holds request data.
A returned function, say REQUEST, is used in this way:
(funcall REQUEST :schema) ; => \"http\" or \"https\"
(funcall REQUEST :uri) ; => \"http://twitter.com/user_timeline\"
(funcall REQUEST :query-string) ; => \"status=hello+twitter&source=twmode\"
...
Available keywords:
:method
:host
:port
:headers
:headers-string
:schema
:uri
:query-string
"
(let* ((schema (if twittering-use-ssl "https" "http"))
(default-port (if twittering-use-ssl 443 80))
(port (if port port default-port))
(headers-string
(mapconcat (lambda (pair)
(format "%s: %s" (car pair) (cdr pair)))
headers "\r\n"))
(uri (format "%s://%s%s%s"
schema
host
(if port
(if (equal port default-port)
""
(format ":%s" port))
"")
path))
(query-string
(mapconcat (lambda (pair)
(format
"%s=%s"
(twittering-percent-encode (car pair))
(twittering-percent-encode (cdr pair))))
parameters
"&"))
)
(lexical-let ((data `((:method . ,method)
(:host . ,host)
(:port . ,port)
(:headers . ,headers)
(:headers-string . ,headers-string)
(:schema . ,schema)
(:uri . ,uri)
(:query-string . ,query-string)
)))
(lambda (key)
(let ((pair (assoc key data)))
(if pair (cdr pair)
(error (format "No such key in HTTP request data: %s" key)))))
)))
(defun twittering-http-application-headers
(&optional method headers)
"Retuns an assoc list of HTTP headers for twittering-mode.
"
(unless method (setq method "GET"))
(let ((headers headers))
(push (cons "User-Agent" (twittering-user-agent)) headers)
(push (cons "Authorization"
(concat "Basic "
(base64-encode-string
(concat
(twittering-get-username)
":"
(twittering-get-password)))))
headers)
(when (string-equal "GET" method)
(push (cons "Accept"
(concat
"text/xml"
",application/xml"
",application/xhtml+xml"
",application/html;q=0.9"
",text/plain;q=0.8"
",image/png,*/*;q=0.5"))
headers)
(push (cons "Accept-Charset" "utf-8;q=0.7,*;q=0.7")
headers))
(when (string-equal "POST" method)
(push (cons "Content-Length" "0") headers)
(push (cons "Content-Type" "text/plain") headers))
(when twittering-proxy-use
(when twittering-proxy-keep-alive
(push (cons "Proxy-Connection" "Keep-Alive")
headers))
(when (and twittering-proxy-user
twittering-proxy-password)
(push (cons "Proxy-Authorization"
(concat
"Basic "
(base64-encode-string
(concat
twittering-proxy-user
":"
twittering-proxy-password))))
headers)))
headers
))
(defun twittering-http-get
(host method &optional noninteractive parameters sentinel)
(if (null sentinel) (setq sentinel 'twittering-http-get-default-sentinel))
(twittering-start-http-session
"GET" (twittering-http-application-headers "GET")
host nil (concat "/" method ".xml") parameters noninteractive sentinel))
(defun twittering-created-at-to-seconds (created-at)
(let ((encoded-time (apply 'encode-time (parse-time-string created-at))))
(+ (* (car encoded-time) 65536)
(cadr encoded-time))))
;; XXX: this is a preliminary implementation because we should parse
;; xmltree in the function.
(defun twittering-http-get-list-index-sentinel
(temp-buffer noninteractive proc stat &optional suc-msg)
(unwind-protect
(let ((header (twittering-get-response-header temp-buffer)))
(if (not (string-match "HTTP/1\.[01] \\([a-zA-Z0-9 ]+\\)\r?\n" header))
(setq twittering-list-index-retrieved "Failure: Bad http response.")
(let ((status (match-string-no-properties 1 header))
(indexes nil))
(if (not (string-match "\r?\nLast-Modified: " header))
(setq twittering-list-index-retrieved
(concat status ", but no contents."))
(case-string
status
(("200 OK")
(save-excursion
(set-buffer temp-buffer)
(goto-char (point-min))
(if (search-forward-regexp "\r?\n\r?\n" nil t)
(while (re-search-forward
"<slug>\\([-a-zA-Z0-9_]+\\)</slug>" nil t)
(push (match-string 1) indexes)))
(if indexes
(setq twittering-list-index-retrieved indexes)
(setq twittering-list-index-retrieved ""))))
(t
(setq twittering-list-index-retrieved status)))))))
(when (and (not twittering-debug-mode) (buffer-live-p temp-buffer))
(kill-buffer temp-buffer)))
)
(defun twittering-http-get-default-sentinel (temp-buffer noninteractive proc stat &optional suc-msg)
(unwind-protect
(debug-printf "get-default-sentinel: proc=%s stat=%s" proc stat)
(let ((header (twittering-get-response-header temp-buffer))
(body (twittering-get-response-body temp-buffer))
(status nil))
(if (string-match "HTTP/1\.[01] \\([a-zA-Z0-9 ]+\\)\r?\n" header)
(when body
(setq status (match-string-no-properties 1 header))
(case-string
status
(("200 OK")
(setq twittering-new-tweets-count
(count t (mapcar
#'twittering-cache-status-datum
(reverse (twittering-xmltree-to-status
body)))))
(setq twittering-timeline-data
(sort twittering-timeline-data
(lambda (status1 status2)
(let ((created-at1
(twittering-created-at-to-seconds
(cdr (assoc 'created-at status1))))
(created-at2
(twittering-created-at-to-seconds
(cdr (assoc 'created-at status2)))))
(> created-at1 created-at2)))))
(if (and (> twittering-new-tweets-count 0)
noninteractive)
(run-hooks 'twittering-new-tweets-hook))
(twittering-render-timeline)
(when twittering-notify-successful-http-get
(message (if suc-msg suc-msg "Success: Get."))))
(t (message status))))
(message "Failure: Bad http response.")))
(when (and (not twittering-debug-mode) (buffer-live-p temp-buffer))
(kill-buffer temp-buffer)))
)
(defun twittering-render-timeline ()
(with-current-buffer (twittering-buffer)
(let ((point (point))
(end (point-max)))
(setq buffer-read-only nil)
(erase-buffer)
(mapc (lambda (status)
(insert (twittering-format-status
status twittering-status-format))
(fill-region-as-paragraph
(line-beginning-position) (point))
(insert "\n"))
twittering-timeline-data)
(if (and twittering-image-stack window-system)
(clear-image-cache))
(setq buffer-read-only t)
(debug-print (current-buffer))
(goto-char (+ point (if twittering-scroll-mode (- (point-max) end) 0))))
))
(defun twittering-icon-path (icon-url)
(require 'ffap)
(concat (md5 icon-url nil nil 'iso-2022-7bit)
(or (ffap-file-suffix icon-url) ".img")))
(defun twittering-make-display-spec-for-icon (fullpath)
"Return the specification for `display' text property, which limits
the size of an icon image FULLPATH up to FIXED-LENGTH.
If the size of the image exceeds FIXED-LENGTH, the center of the
image are displayed."
(let* ((image-spec
`(image :type ,(twittering-image-type fullpath)
:file ,fullpath)))
(if (and twittering-convert-fix-size (not twittering-use-convert))
(let* ((size (if (file-exists-p fullpath)
(image-size image-spec t)
'(48 . 48)))
(width (car size))
(height (cdr size))
(fixed-length twittering-convert-fix-size)
(half-fixed-length (/ fixed-length 2))
(slice-spec
(if (or (< fixed-length width) (< fixed-length height))
`(slice ,(max 0 (- (/ width 2) half-fixed-length))
,(max 0 (- (/ height 2) half-fixed-length))
,fixed-length ,fixed-length)
`(slice 0 0 ,fixed-length ,fixed-length))))
`(display (,image-spec ,slice-spec)))
`(display ,image-spec))))
(defun twittering-format-status (status format-str)
(flet ((attr (key)
(assocref key status))
(profile-image
()
(let ((profile-image-url (attr 'user-profile-image-url))
(icon-string "\n "))
(if (string-match "/\\([^/?]+\\)\\(?:\\?\\|$\\)" profile-image-url)
(let* ((filename (match-string-no-properties 1
profile-image-url))
(fullpath (concat twittering-tmp-dir "/" (twittering-icon-path profile-image-url))))
;; download icons if does not exist
(if (file-exists-p fullpath)
t
(add-to-list 'twittering-image-stack profile-image-url))
(when (and icon-string twittering-icon-mode)
(let ((display-spec
(twittering-make-display-spec-for-icon fullpath)))
(set-text-properties 1 2 display-spec icon-string))
icon-string)
))))