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;;; rt-liberation-gnus.el --- Gnus integration for rt-liberation -*- lexical-binding: t; -*-
;; Copyright (C) 2009-2014 Free Software Foundation, Inc.
;;
;; Authors: Yoni Rabkin <yrk@gnu.org>
;;
;; This file is a part of rt-liberation.
;;
;; 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, write to the Free
;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
;; MA 02111-1307, USA.
;;; Installation:
;;
;; For installation instructions and detailed help please see the
;; wonderful rt-liberation manual located in the "doc/" directory of
;; the rt-liberation distribution.
(defgroup rt-liber-gnus nil
"*Gnus integration for rt-liberation."
:prefix "rt-liber-gnus-"
:group 'rt-liber-gnus)
(defcustom rt-liber-gnus-subject-name "no subject name set"
"*Subject name to be included in email header."
:type 'string
:group 'rt-liber-gnus)
(defcustom rt-liber-gnus-provisional-tag "PROVISIONAL"
"*Subject line text for a provisional response."
:type 'string
:group 'rt-liber-gnus)
(defcustom rt-liber-gnus-delayed-response-text
"Please accept my apologies for the late reply."
"*Text for a belated reply."
:type 'string
:group 'rt-liber-gnus)
(defcustom rt-liber-gnus-subject-regexp
""
"Regular expression to capture the ticket number in the subject
line of an email. For example: \\[company.com #\\([0-9].+?\\)\\]"
:type 'string
:group 'rt-liber-gnus)
(require 'rt-liberation)
(require 'nnir)
(require 'gnus-msg)
(defvar rt-liber-gnus-p nil
"Non-nil when rt-liberation-gnus is composing a Gnus buffer.")
(defun rt-liber-gnus-compose (addr ticket-alist options)
"Create a Gnus *mail* buffer for the RT email interface.
ADDR email address.
TICKET-ALIST association list of ticket properties.
OPTIONS association list of options.
"
(let ((provisional (cdr (assoc 'provisional options)))
(suppress-subject (cdr (assoc 'suppress-subject options)))
(top-matter (cdr (assoc 'top-matter options)))
(contents (cdr (assoc 'contents options)))
(no-comment (cdr (assoc 'no-comment options)))
(rt-liber-gnus-p t)
(comment-start ">")
message-text)
;; prepare the text
(with-temp-buffer
(when top-matter
(insert top-matter))
(when contents
(newline 2)
(insert contents))
(when (not no-comment)
(comment-region (point-min) (point-max)))
(setq message-text (buffer-substring (point-min) (point-max))))
;; launch into gnus and prepare the mail message
(when (not (gnus-alive-p))
(error "Gnus has been shut down"))
(gnus-setup-message 'message
(message-mail
addr
(format "[%s #%s] %s"
rt-liber-gnus-subject-name
(rt-liber-ticket-id-only ticket-alist)
(cond (suppress-subject "")
(provisional rt-liber-gnus-provisional-tag)
(t (rt-liber-format "Re: %s" ticket-alist))))
nil
'switch-to-buffer))
(save-excursion
(insert message-text))))
(defmacro rt-liber-gnus-with-ticket-buffer (&rest body)
`(progn
(when (not (boundp 'rt-liber-ticket-local))
(error "rt-liberation ticket view buffer not present"))
,@body))
(defun rt-liber-gnus-content-to-string ()
"Return the current content section as a string"
(rt-liber-gnus-with-ticket-buffer
(goto-char (point-at-eol))
(when
(not
(or (re-search-backward rt-liber-content-regexp (point-min) t)
(re-search-forward rt-liber-content-regexp (point-max) t)))
(error "no content sections found"))
(save-excursion
(goto-char (point-at-bol))
(re-search-forward "^Content: " (point-at-eol) nil)
(let ((start (point))
text)
(re-search-forward "^[[:alpha:]]+:" (point-max) t)
(goto-char (point-at-bol))
(when (= 0 (length (buffer-substring-no-properties start (point))))
(error "empty content section"))
(setq text (buffer-substring-no-properties start (point)))
(with-temp-buffer
(insert text)
(goto-char (point-min))
(while (re-search-forward "^[ ]+" (point-max) t)
(replace-match ""))
(whitespace-cleanup)
(setq text (buffer-substring (point-min) (point-max))))
text))))
(defun rt-liber-gnus-compose-reply-to-requestor ()
(interactive)
(rt-liber-gnus-with-ticket-buffer
(rt-liber-gnus-compose
rt-liber-gnus-address
rt-liber-ticket-local
nil)))
(defun rt-liber-gnus-compose-reply-to-requestor-to-this ()
(interactive)
(rt-liber-gnus-with-ticket-buffer
(rt-liber-gnus-compose
rt-liber-gnus-address
rt-liber-ticket-local
`((contents . ,(rt-liber-gnus-content-to-string))
(top-matter . ,(if (rt-liber-ticket-old-p rt-liber-ticket-local)
rt-liber-gnus-delayed-response-text
nil))))))
(defun rt-liber-gnus-compose-reply-to-requestor-verbatim-this ()
(interactive)
(rt-liber-gnus-with-ticket-buffer
(rt-liber-gnus-compose
rt-liber-gnus-address
rt-liber-ticket-local
`((contents . ,(rt-liber-gnus-content-to-string))
(no-comment . t)))))
(defun rt-liber-gnus-compose-provisional ()
(interactive)
(rt-liber-gnus-with-ticket-buffer
(rt-liber-gnus-compose
rt-liber-gnus-comment-address
rt-liber-ticket-local
'((provisional . t)))))
(defun rt-liber-gnus-compose-provisional-to-this ()
(interactive)
(rt-liber-gnus-with-ticket-buffer
(rt-liber-gnus-compose
rt-liber-gnus-comment-address
rt-liber-ticket-local
`((provisional . t)
(contents . ,(rt-liber-gnus-content-to-string))
(top-matter . ,(if (rt-liber-ticket-old-p rt-liber-ticket-local)
rt-liber-gnus-delayed-response-text
nil))))))
(defun rt-liber-gnus-compose-comment ()
(interactive)
(rt-liber-gnus-with-ticket-buffer
(rt-liber-gnus-compose
rt-liber-gnus-comment-address
rt-liber-ticket-local
`((suppress-subject . t)
(no-comment . t)
))))
(defun rt-liber-gnus-compose-comment-this ()
(interactive)
(rt-liber-gnus-with-ticket-buffer
(rt-liber-gnus-compose
rt-liber-gnus-comment-address
rt-liber-ticket-local
`((suppress-subject . t)
(contents . ,(rt-liber-gnus-content-to-string))
))))
(defun rt-liber-gnus-visit-ticket-at-point ()
"Call `rt-liber-display-ticket' on this ticket."
(interactive)
(save-excursion
(goto-char (point-at-bol))
(re-search-forward rt-liber-gnus-subject-regexp (point-at-eol) nil))
(let ((match (match-string-no-properties 1)))
(when (not match)
(error "no ticket number found in subject line"))
(rt-liber-browse-query
(rt-liber-compile-query
(id match)))))
(provide 'rt-liberation-gnus)
;;; rt-liberation-gnus.el ends here.
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