94 lines
3.4 KiB
EmacsLisp
94 lines
3.4 KiB
EmacsLisp
;;; url-tramp.el --- file-name-handler magic invoking Tramp for some protocols -*- lexical-binding: t; -*-
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;; Copyright (C) 2014-2024 Free Software Foundation, Inc.
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;; Author: Michael Albinus <michael.albinus@gmx.de>
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;; Keywords: comm, data, processes, hypermedia
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;; This file is part of GNU Emacs.
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;;
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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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;;; Code:
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(require 'url-parse)
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(require 'tramp)
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(require 'password-cache)
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;;;###autoload
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(defcustom url-tramp-protocols '("ftp" "ssh" "scp" "rsync" "telnet")
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"List of URL protocols for which the work is handled by Tramp.
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They must also be covered by `url-handler-regexp'."
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:group 'url
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:version "25.1"
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:type '(repeat string))
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(defun url-tramp-convert-url-to-tramp (url)
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"Convert URL to a Tramp file name.
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If URL contains a password, it will be added to the `password-data' cache.
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In case URL is not convertible, nil is returned."
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(let* ((obj (url-generic-parse-url (and (stringp url) url)))
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(port
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(and obj (natnump (url-portspec obj))
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(number-to-string (url-portspec obj)))))
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(if (and obj (member (url-type obj) url-tramp-protocols))
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(progn
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(when (url-password obj)
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(password-cache-add
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(tramp-make-tramp-file-name
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(make-tramp-file-name
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:method (url-type obj) :user (url-user obj)
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:host (url-host obj)))
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(url-password obj)))
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(tramp-make-tramp-file-name
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(make-tramp-file-name
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:method (url-type obj) :user (url-user obj)
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:host (url-host obj) :port port :localname (url-filename obj))))
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url)))
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(defun url-tramp-convert-tramp-to-url (file)
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"Convert FILE, a Tramp file name, to a URL.
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In case FILE is not convertible, nil is returned."
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(let* ((obj (and (tramp-tramp-file-p file)
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(ignore-errors (tramp-dissect-file-name file))))
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(port
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(and obj (stringp (tramp-file-name-port obj))
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(string-to-number (tramp-file-name-port obj)))))
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(if (and obj (member (tramp-file-name-method obj) url-tramp-protocols))
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(url-recreate-url
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(url-parse-make-urlobj
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(tramp-file-name-method obj)
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(tramp-file-name-user obj)
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nil ; password.
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(tramp-file-name-host obj)
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port
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(tramp-file-name-localname obj)
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nil nil t)) ; target attributes fullness.
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file)))
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;;;###autoload
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(defun url-tramp-file-handler (operation &rest args)
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"Function called from the `file-name-handler-alist' routines.
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OPERATION is what needs to be done. ARGS are the arguments that
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would have been passed to OPERATION."
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(let ((default-directory (url-tramp-convert-url-to-tramp default-directory))
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(args (mapcar 'url-tramp-convert-url-to-tramp args)))
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(url-tramp-convert-tramp-to-url (apply operation args))))
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(provide 'url-tramp)
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;;; url-tramp.el ends here
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