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idec.el
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;;; idec.el --- GNU Emacs client for IDEC network
;; Copyright (c) 2017 Denis Zheleztsov
;; Author: Denis Zheleztsov <[email protected]>
;; Keywords: lisp,network,IDEC
;; Version: 0.1
;; This program 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 3 of the License, or
;; (at your option) any later version.
;; This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; In active developent.
;; Fetched node must be support modern IDEC extensions like /list.txt, /x/c, etc.
;;; Code:
;; (require 'idec-answers)
(require 'idec-parser)
;; (require 'idec-online)
(require 'idec-db)
;; FUNCTIONS
;; ;;;;;;;;;
(defun get-url-content (url)
"Get URL content and return it without headers."
(with-current-buffer
(url-retrieve-synchronously url)
(goto-char (point-min))
(re-search-forward "^$")
(forward-line)
(delete-region (point) (point-min))
(buffer-string)))
;; LOCAL MAIL FUNCTIONS
;; ;;;;;;;;;;;;;;;;;;;;
(defun dots (echo)
"Get dots from ECHO list."
(make-string
(+ (- (get-longest-string (get-local-echoes))
(length echo))
3)
? ))
(defun mark-all-as-read (echo &optional checkpoint)
"Mark all messages in ECHO as read;
put cursor to CHECKPOINT."
(mark-all-messages-as-read echo)
(idec-local-browse checkpoint))
;; END OF LOCAL MAIL FUNCTIONS
;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defun make-message-header (msg)
"Make message header from MSG hash."
(concat
(concat "ID: " (gethash "id" msg) "\n")
(concat "From: " (gethash "author" msg) "[" (gethash "address" msg) "]" "\n")
(concat "To: " (gethash "recipient" msg) "\n")
(concat "Echo: " (gethash "echo" msg) "\n")
(concat "At: " (gethash "time" msg) "\n")
(concat "Subject: " (gethash "subj" msg) "\n")))
(defun display-message-hash (msg)
"Disaply message MSG in new buffer."
(mark-message-read (gethash "id" msg) (gethash "echo" msg))
(with-output-to-temp-buffer (get-buffer-create (concat "*IDEC: " (gethash "subj" msg) "*"))
(switch-to-buffer (concat "*IDEC: " (gethash "subj" msg) "*"))
(princ (make-message-header msg))
(princ (concat "__________________________________\n\n"
(gethash "body" msg)))
(princ "\n__________________________________\n")
(princ "[")
(let (answer-hash)
(setq answer-hash (make-hash-table :test 'equal))
(puthash "content" (gethash "msg" msg) answer-hash)
(insert-button "Answer"
'action (lambda (x) (edit-answer-without-quote (button-get x 'id) (button-get x 'msg-hash)))
'id (gethash "id" msg)
'msg-hash answer-hash))
(princ "]")
(princ "\t [")
(insert-button "Quote answer")
(princ "]")
(add-text-properties (point-min) (point-max) 'read-only))
(idec-mode))
(defun display-message (msg)
"Display message MSG in new buffer in idec-mode."
(mark-message-read (gethash "id" msg) (get-message-field (gethash "msg" msg) "echo"))
(with-output-to-temp-buffer (get-buffer-create (concat "*IDEC: "
(decode-coding-string
(get-message-field
(gethash "msg" msg) "subj")
'utf-8)
"*"))
;; Run in IDEC mode
(switch-to-buffer (concat "*IDEC: " (decode-coding-string (get-message-field
(gethash "msg" msg) "subj")
'utf-8)
"*"))
(princ (concat "ID: " (gethash "id" msg) "\n"))
(princ (concat "From: " (get-message-field (gethash "msg" msg) "author") "("
(get-message-field (gethash "msg" msg) "address") ")" "\n"))
(princ (concat "To: " (get-message-field (gethash "msg" msg) "recipient") "\n"))
(princ (concat "Echo: " (get-message-field (gethash "msg" msg) "echo") "\n"))
(princ (concat "At: " (get-message-field (gethash "msg" msg) "time") "\n"))
(princ (concat "Subject: " (get-message-field (gethash "msg" msg) "subj") "\n"))
(princ (concat "__________________________________\n\n"
(s-join "\n" (get-message-field (gethash "msg" msg) "body"))))
(princ "\n__________________________________\n")
(princ "[")
(let (answer-hash)
(setq answer-hash (make-hash-table :test 'equal))
(puthash "content" (gethash "msg" msg) answer-hash)
(insert-button "Answer"
'action (lambda (x) (edit-answer-without-quote (button-get x 'id) (button-get x 'msg-hash)))
'id (gethash "id" msg)
'msg-hash answer-hash))
(princ "]")
(princ "\t [")
(insert-button "Quote answer")
(princ "]")
(add-text-properties (point-min) (point-max) 'read-only))
(point-max)
(idec-mode))
(defun display-new-messages ()
"Display new fetched messages from `new-messages-list'."
(if (= (hash-table-count new-messages-list) 0)
(message "IDEC: No new messages.")
(with-output-to-temp-buffer (get-buffer-create "*IDEC: New messages*")
(switch-to-buffer "*IDEC: New messages*")
(maphash (lambda (id msg)
(let (m)
(setq m (make-hash-table :test 'equal))
(puthash "id" id m)
(puthash "msg" msg m)
;; Write message subj
(insert-text-button (concat (get-message-field msg "subj")
(make-string
(- (get-longest-field "subj" new-messages-list)
(length (get-message-field msg "subj")))
? ))
'help-echo "Read message"
'msg-hash m
'action (lambda (x) (display-message (button-get x 'msg-hash)))))
;; Write message time and echo
(princ (format " %s(%s)%s%s\t%s\n"
(get-message-field msg "author")
(get-message-field msg "address")
(make-string (-
(+
(get-longest-field "author" new-messages-list)
(get-longest-field "address" new-messages-list)
1)
(+
(length (get-message-field msg "author"))
(length (get-message-field msg "address")))
)
? )
(get-message-field msg "echo")
(get-message-field msg "time"))))
new-messages-list))
(idec-mode)))
(defun hash-table-keys (hash-table)
"Get list of keys from HASH-TABLE."
(let ((keys ()))
(maphash (lambda (k v) (push k keys)) hash-table)
keys))
(defun get-messages-content (messages)
"Get MESSAGES content from `idec-primary-node'."
(let (new-hash)
(setq new-hash (make-hash-table :test 'equal))
;; (message (get-url-content (make-messages-url (hash-table-keys messages))))
(dolist (line (split-string (get-url-content (make-messages-url (hash-table-keys messages))) "\n"))
(when (not (string= "" line))
(let (msgid content mes)
(setq mes (make-hash-table :test 'equal))
(setq msgid (nth 0 (split-string line ":")))
(setq content
(decode-coding-string
(base64-decode-string
(nth 1 (split-string line ":")))
'utf-8))
;; Populate message hash: {"echo": "echo name", "content": "message content"}
(puthash "echo" (get-message-field content "echo") mes)
(puthash "content" content mes)
(puthash msgid mes new-hash))))
new-hash))
(defun download-message (ids)
"Download messages with IDS to `idec-mail-dir'."
(if (= (hash-table-count ids) 0)
nil
(maphash (lambda (id msg)
(insert-message-to-db (gethash "content" msg) id)
;; (store-message (gethash "content" msg) (gethash "echo" msg) id)
(puthash id (gethash "content" msg) new-messages-list))
(get-messages-content ids))))
(defun download-subscriptions ()
"Download messages from echoes defined in `idec-echo-subscriptions' from `idec-primary-node'."
(message (make-echo-url (split-string idec-echo-subscriptions ",")))
(message idec-echo-subscriptions)
(get-url-content
(make-echo-url (split-string idec-echo-subscriptions ","))))
;; ECHOES FUNCTIONS
;; ;;;;;;;;;;;;;;;;
(defun make-echo-url (echoes &optional online)
"Make ECHOES url to retreive messages from `idec-primary-node';
with `idec-download-offset' and `idec-download-limit';
If ONLINE is t uses `idec-online-download-limit' and `idec-online-download-offset'."
;; Check ECHOES is list
(let (limit offset)
(if online
(and (setq limit idec-online-download-limit)
(setq offset idec-online-download-offset))
(and (setq limit idec-download-limit)
(setq offset idec-download-offset)))
(if (listp echoes)
;; Required GNU Emacs >= 25.3
(message (concat idec-primary-node "u/e/"
(s-join "/" echoes) "/" offset ":" limit))
(message (concat idec-primary-node "u/e/" echoes "/" offset ":" limit)))))
(defun make-messages-url (messages)
"Make MESSAGES url to retreive messages from `idec-primary-node'."
;; Check MESSAGES is list
(if (listp messages)
;; Required GNU Emacs >= 25.3
(concat idec-primary-node "u/m/" (s-join "/" messages))
(concat idec-primary-node "u/m/" messages)))
(defun make-count-url (echo)
"Return messages count url in `idec-primary-node' from ECHO."
(concat idec-primary-node "/x/c/" echo))
(defun echo-messages-count (echo)
"Get messages count in ECHO."
(nth 1 (split-string
(get-url-content (make-count-url echo)) ":")))
;; END OF ECHOES FUNCTIONS
;; ;;;;;;;;;;;;;;;;;;;;;;;
;; END OF FUNCTIONS
;; ;;;;;;;;;;;;;;;;
(provide 'idec)
;;; idec.el ends here