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;;; url-tramp.el --- file-name-handler magic invoking Tramp for some protocols
;; Copyright (C) 2014-2017 Free Software Foundation, Inc.
;; Author: Michael Albinus <michael.albinus@gmx.de>
;; Keywords: comm, data, processes, hypermedia
;; This file is part of GNU Emacs.
;;
;; GNU Emacs 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.
;; GNU Emacs 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. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(require 'url-parse)
(require 'tramp)
(require 'password-cache)
;;;###autoload
(defcustom url-tramp-protocols '("ftp" "ssh" "scp" "rsync" "telnet")
"List of URL protocols for which the work is handled by Tramp.
They must also be covered by `url-handler-regexp'."
:group 'url
:version "25.1"
:type '(repeat string))
(defun url-tramp-convert-url-to-tramp (url)
"Convert URL to a Tramp file name."
(let ((obj (url-generic-parse-url (and (stringp url) url))))
(if (member (url-type obj) url-tramp-protocols)
(progn
(if (url-password obj)
(password-cache-add
(tramp-make-tramp-file-name
(url-type obj) (url-user obj) (url-host obj) "")
(url-password obj))
(tramp-make-tramp-file-name
(url-type obj) (url-user obj) (url-host obj) (url-filename obj))))
url)))
(defun url-tramp-convert-tramp-to-url (file)
"Convert FILE, a Tramp file name, to a URL."
(let ((obj (ignore-errors (tramp-dissect-file-name file))))
(if (member (tramp-file-name-method obj) url-tramp-protocols)
(url-recreate-url
(url-parse-make-urlobj
(tramp-file-name-method obj)
(tramp-file-name-user obj)
nil ; password.
(tramp-file-name-host obj)
nil ; port.
(tramp-file-name-localname obj)
nil nil t)) ; target attributes fullness.
file)))
;;;###autoload
(defun url-tramp-file-handler (operation &rest args)
"Function called from the `file-name-handler-alist' routines.
OPERATION is what needs to be done. ARGS are the arguments that
would have been passed to OPERATION."
(let ((default-directory (url-tramp-convert-url-to-tramp default-directory))
(args (mapcar 'url-tramp-convert-url-to-tramp args)))
(url-tramp-convert-tramp-to-url (apply operation args))))
(provide 'url-tramp)
;;; url-tramp.el ends here
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