lisp/url/url-nfs.el

   1 ;;; url-nfs.el --- NFS URL interface
   2
   3 ;; Copyright (c) 1996,1997,1998,1999,2004  Free Software Foundation, Inc.
   4
   5 ;; Keywords: comm, data, processes
   6
   7 ;; This file is part of GNU Emacs.
   8 ;;
   9 ;; GNU Emacs is free software; you can redistribute it and/or modify
  10 ;; it under the terms of the GNU General Public License as published by
  11 ;; the Free Software Foundation; either version 2, or (at your option)
  12 ;; any later version.
  13 ;;
  14 ;; GNU Emacs is distributed in the hope that it will be useful,
  15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 ;; GNU General Public License for more details.
  18 ;;
  19 ;; You should have received a copy of the GNU General Public License
  20 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  21 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  22 ;; Boston, MA 02110-1301, USA.
  23
  24 ;;; Commentary:
  25
  26 ;;; Code:
  27
  28 (eval-when-compile (require 'cl))
  29 (require 'url-parse)
  30 (require 'url-file)
  31
  32 (defvar url-nfs-automounter-directory-spec
  33   "file:/net/%h%f"
  34   "*How to invoke the NFS automounter.  Certain % sequences are recognized.
  35
  36 %h -- the hostname of the NFS server
  37 %n -- the port # of the NFS server
  38 %u -- the username to use to authenticate
  39 %p -- the password to use to authenticate
  40 %f -- the filename on the remote server
  41 %% -- a literal %
  42
  43 Each can be used any number of times.")
  44
  45 (defun url-nfs-unescape (format host port user pass file)
  46   (save-excursion
  47     (set-buffer (get-buffer-create " *nfs-parse*"))
  48     (erase-buffer)
  49     (insert format)
  50     (goto-char (point-min))
  51     (while (re-search-forward "%\\(.\\)" nil t)
  52        (let ((escape (aref (match-string 1) 0)))
  53          (replace-match "" t t)
  54          (case escape
  55            (?% (insert "%"))
  56            (?h (insert host))
  57            (?n (insert (or port "")))
  58            (?u (insert (or user "")))
  59            (?p (insert (or pass "")))
  60            (?f (insert (or file "/"))))))
  61     (buffer-string)))
  62
  63 (defun url-nfs-build-filename (url)
  64   (let* ((host (url-host url))
  65          (port (url-port url))
  66          (pass (url-password url))
  67          (user (url-user url))
  68          (file (url-filename url)))
  69     (url-generic-parse-url
  70      (url-nfs-unescape url-nfs-automounter-directory-spec
  71                        host port user pass file))))
  72
  73 (defun url-nfs (url callback cbargs)
  74   (url-file (url-nfs-build-filename url) callback cbargs))
  75
  76 (defmacro url-nfs-create-wrapper (method args)
  77   `(defun ,(intern (format "url-nfs-%s" method)) ,args
  78      ,(format "NFS URL wrapper around `%s' call." method)
  79      (setq url (url-nfs-build-filename url))
  80      (and url (,(intern (format "url-file-%s" method))
  81                ,@(remove '&rest (remove '&optional args))))))
  82
  83 (url-nfs-create-wrapper file-exists-p (url))
  84 (url-nfs-create-wrapper file-attributes (url &optional id-format))
  85 (url-nfs-create-wrapper file-symlink-p (url))
  86 (url-nfs-create-wrapper file-readable-p (url))
  87 (url-nfs-create-wrapper file-writable-p (url))
  88 (url-nfs-create-wrapper file-executable-p (url))
  89 (if (featurep 'xemacs)
  90     (progn
  91       (url-nfs-create-wrapper directory-files (url &optional full match nosort files-only))
  92       (url-nfs-create-wrapper file-truename (url &optional default)))
  93   (url-nfs-create-wrapper directory-files (url &optional full match nosort))
  94   (url-nfs-create-wrapper file-truename (url &optional counter prev-dirs)))
  95
  96 (provide 'url-nfs)
  97
  98 ;; arch-tag: cdf9c9ba-b7d2-4c29-8b48-7ae9bbc0d437
  99 ;;; url-nfs.el ends here