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Most of this change is to boilerplate commentary such as license URLs. This change was prompted by ftp://ftp.gnu.org's going-away party, planned for November. Change these FTP URLs to https://ftp.gnu.org instead. Make similar changes for URLs to other organizations moving away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and fsf.org when this works, as this will further help defend against man-in-the-middle attacks (for this part I omitted the MS-DOS and MS-Windows sources and the test tarballs to keep the workload down). HTTPS is not fully working to lists.gnu.org so I left those URLs alone for now.
252 lines
8.8 KiB
EmacsLisp
252 lines
8.8 KiB
EmacsLisp
;;; gnus-dired.el --- utility functions where gnus and dired meet
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;; Copyright (C) 1996-1999, 2001-2017 Free Software Foundation, Inc.
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;; Authors: Benjamin Rutt <brutt@bloomington.in.us>,
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;; Shenghuo Zhu <zsh@cs.rochester.edu>
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;; Keywords: mail, news, extensions
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; This package provides utility functions for intersections of gnus
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;; and dired. To enable the gnus-dired-mode minor mode which will
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;; have the effect of installing keybindings in dired-mode, place the
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;; following in your ~/.gnus:
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;; (require 'gnus-dired) ;, isn't needed due to autoload cookies
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;; (add-hook 'dired-mode-hook 'turn-on-gnus-dired-mode)
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;; Note that if you visit dired buffers before your ~/.gnus file has
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;; been read, those dired buffers won't have the keybindings in
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;; effect. To get around that problem, you may want to add the above
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;; statements to your ~/.emacs instead.
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;;; Code:
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(require 'dired)
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(autoload 'mml-attach-file "mml")
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(autoload 'mm-default-file-encoding "mm-decode");; Shift this to `mailcap.el'?
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(autoload 'mailcap-extension-to-mime "mailcap")
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(autoload 'mailcap-mime-info "mailcap")
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;; Maybe shift this function to `mailcap.el'?
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(autoload 'mm-mailcap-command "mm-decode")
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(autoload 'ps-print-preprint "ps-print")
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;; Autoloads to avoid byte-compiler warnings. These are used only if the user
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;; customizes `gnus-dired-mail-mode' to use Message and/or Gnus.
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(autoload 'message-buffers "message")
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(autoload 'gnus-print-buffer "gnus-sum")
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(defvar gnus-dired-mode-map
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(let ((map (make-sparse-keymap)))
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(define-key map "\C-c\C-m\C-a" 'gnus-dired-attach)
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(define-key map "\C-c\C-m\C-l" 'gnus-dired-find-file-mailcap)
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(define-key map "\C-c\C-m\C-p" 'gnus-dired-print)
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map))
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;; FIXME: Make it customizable, change the default to `mail-user-agent' when
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;; this file is renamed (e.g. to `dired-mime.el').
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(defcustom gnus-dired-mail-mode 'gnus-user-agent ;; mail-user-agent
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"Your preference for a mail composition package.
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See `mail-user-agent' for more information."
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:group 'mail ;; dired?
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:version "23.1" ;; No Gnus
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:type '(radio (function-item :tag "Default Emacs mail"
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:format "%t\n"
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sendmail-user-agent)
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(function-item :tag "Emacs interface to MH"
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:format "%t\n"
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mh-e-user-agent)
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(function-item :tag "Gnus Message package"
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:format "%t\n"
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message-user-agent)
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(function-item :tag "Gnus Message with full Gnus features"
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:format "%t\n"
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gnus-user-agent)
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(function :tag "Other")))
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(define-minor-mode gnus-dired-mode
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"Minor mode for intersections of gnus and dired.
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\\{gnus-dired-mode-map}"
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:keymap gnus-dired-mode-map
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(unless (derived-mode-p 'dired-mode)
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(setq gnus-dired-mode nil)))
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;;;###autoload
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(defun turn-on-gnus-dired-mode ()
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"Convenience method to turn on gnus-dired-mode."
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(interactive)
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(gnus-dired-mode 1))
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(defun gnus-dired-mail-buffers ()
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"Return a list of active mail composition buffers."
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(if (and (memq gnus-dired-mail-mode '(message-user-agent gnus-user-agent))
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(require 'message)
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(fboundp 'message-buffers))
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(message-buffers)
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;; Cf. `message-buffers' in `message.el':
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(let (buffers)
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(save-excursion
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(dolist (buffer (buffer-list t))
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(set-buffer buffer)
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(when (eq major-mode 'mail-mode)
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(push (buffer-name buffer) buffers))))
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(nreverse buffers))))
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(autoload 'gnus-completing-read "gnus-util")
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;; Method to attach files to a mail composition.
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(defun gnus-dired-attach (files-to-attach)
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"Attach dired's marked files to a gnus message composition.
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If called non-interactively, FILES-TO-ATTACH should be a list of
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filenames."
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(interactive
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(list
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(delq nil
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(mapcar
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;; don't attach directories
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(lambda (f) (if (file-directory-p f) nil f))
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(nreverse (dired-map-over-marks (dired-get-filename) nil))))))
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(let ((destination nil)
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(files-str nil)
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(bufs nil))
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;; warn if user tries to attach without any files marked
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(if (null files-to-attach)
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(error "No files to attach")
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(setq files-str
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(mapconcat
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(lambda (f) (file-name-nondirectory f))
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files-to-attach ", "))
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(setq bufs (gnus-dired-mail-buffers))
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;; set up destination mail composition buffer
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(if (and bufs
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(y-or-n-p "Attach files to existing mail composition buffer? "))
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(setq destination
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(if (= (length bufs) 1)
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(get-buffer (car bufs))
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(gnus-completing-read "Attach to buffer"
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bufs t nil nil (car bufs))))
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;; setup a new mail composition buffer
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(let ((mail-user-agent gnus-dired-mail-mode)
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;; A workaround to prevent Gnus from displaying the Gnus
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;; logo when invoking this command without loading Gnus.
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;; Gnus demonstrates it when gnus.elc is being loaded if
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;; a command of which the name is prefixed with "gnus"
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;; causes that autoloading. See the code in question,
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;; that is the one first found in gnus.el by performing
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;; `C-s this-command'.
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(this-command (if (eq gnus-dired-mail-mode 'gnus-user-agent)
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'gnoose-dired-attach
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this-command)))
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(compose-mail))
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(setq destination (current-buffer)))
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;; set buffer to destination buffer, and attach files
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(set-buffer destination)
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(goto-char (point-max)) ;attach at end of buffer
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(while files-to-attach
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(mml-attach-file (car files-to-attach)
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(or (mm-default-file-encoding (car files-to-attach))
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"application/octet-stream") nil)
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(setq files-to-attach (cdr files-to-attach)))
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(message "Attached file(s) %s" files-str))))
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(autoload 'mailcap-parse-mailcaps "mailcap" "" t)
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(defun gnus-dired-find-file-mailcap (&optional file-name arg)
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"In dired, visit FILE-NAME according to the mailcap file.
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If ARG is non-nil, open it in a new buffer."
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(interactive (list
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(file-name-sans-versions (dired-get-filename) t)
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current-prefix-arg))
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(mailcap-parse-mailcaps)
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(if (file-exists-p file-name)
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(let (mime-type method)
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(if (and (not arg)
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(not (file-directory-p file-name))
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(string-match "\\.[^\\.]+$" file-name)
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(setq mime-type
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(mailcap-extension-to-mime
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(match-string 0 file-name)))
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(stringp
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(setq method
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(cdr (assoc 'viewer
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(car (mailcap-mime-info mime-type
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'all
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'no-decode)))))))
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(let ((view-command (mm-mailcap-command method file-name nil)))
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(message "viewing via %s" view-command)
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(start-process "*display*"
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nil
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shell-file-name
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shell-command-switch
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view-command))
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(find-file file-name)))
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(if (file-symlink-p file-name)
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(error "File is a symlink to a nonexistent target")
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(error "File no longer exists; type `g' to update Dired buffer"))))
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(defun gnus-dired-print (&optional file-name print-to)
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"In dired, print FILE-NAME according to the mailcap file.
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If there is no print command, print in a PostScript image. If the
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optional argument PRINT-TO is nil, send the image to the printer. If
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PRINT-TO is a string, save the PostScript image in a file with that
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name. If PRINT-TO is a number, prompt the user for the name of the
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file to save in."
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(interactive (list
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(file-name-sans-versions (dired-get-filename) t)
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(ps-print-preprint current-prefix-arg)))
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(mailcap-parse-mailcaps)
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(cond
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((file-directory-p file-name)
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(error "Can't print a directory"))
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((file-exists-p file-name)
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(let (mime-type method)
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(if (and (string-match "\\.[^\\.]+$" file-name)
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(setq mime-type
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(mailcap-extension-to-mime
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(match-string 0 file-name)))
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(stringp
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(setq method (mailcap-mime-info mime-type "print"
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'no-decode))))
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(call-process shell-file-name nil
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(generate-new-buffer " *mm*")
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nil
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shell-command-switch
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(mm-mailcap-command method file-name mime-type))
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(with-temp-buffer
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(insert-file-contents file-name)
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(if (eq gnus-dired-mail-mode 'gnus-user-agent)
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(gnus-print-buffer)
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;; FIXME:
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(error "MIME print only implemented via Gnus")))
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(ps-despool print-to))))
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((file-symlink-p file-name)
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(error "File is a symlink to a nonexistent target"))
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(t
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(error "File no longer exists; type `g' to update Dired buffer"))))
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(provide 'gnus-dired)
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;;; gnus-dired.el ends here
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