code.delx.au - gnu-emacs/blob - lisp/url/url-nfs.el

   1 ;;; url-nfs.el --- NFS URL interface
   2 ;; Keywords: comm, data, processes
   3
   4 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
   5 ;;; Copyright (c) 1996 by William M. Perry <wmperry@cs.indiana.edu>
   6 ;;; Copyright (c) 1996 - 1999 Free Software Foundation, Inc.
   7 ;;;
   8 ;;; This file is part of GNU Emacs.
   9 ;;;
  10 ;;; GNU Emacs is free software; you can redistribute it and/or modify
  11 ;;; it under the terms of the GNU General Public License as published by
  12 ;;; the Free Software Foundation; either version 2, or (at your option)
  13 ;;; any later version.
  14 ;;;
  15 ;;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;;; GNU General Public License for more details.
  19 ;;;
  20 ;;; You should have received a copy of the GNU General Public License
  21 ;;; along with GNU Emacs; see the file COPYING.  If not, write to the
  22 ;;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23 ;;; Boston, MA 02111-1307, USA.
  24 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  25
  26 (eval-when-compile (require 'cl))
  27 (require 'url-parse)
  28 (require 'url-file)
  29
  30 (defvar url-nfs-automounter-directory-spec
  31   "file:/net/%h%f"
  32   "*How to invoke the NFS automounter.  Certain % sequences are recognized.
  33
  34 %h -- the hostname of the NFS server
  35 %n -- the port # of the NFS server
  36 %u -- the username to use to authenticate
  37 %p -- the password to use to authenticate
  38 %f -- the filename on the remote server
  39 %% -- a literal %
  40
  41 Each can be used any number of times.")
  42
  43 (defun url-nfs-unescape (format host port user pass file)
  44   (save-excursion
  45     (set-buffer (get-buffer-create " *nfs-parse*"))
  46     (erase-buffer)
  47     (insert format)
  48     (goto-char (point-min))
  49     (while (re-search-forward "%\\(.\\)" nil t)
  50        (let ((escape (aref (match-string 1) 0)))
  51          (replace-match "" t t)
  52          (case escape
  53            (?% (insert "%"))
  54            (?h (insert host))
  55            (?n (insert (or port "")))
  56            (?u (insert (or user "")))
  57            (?p (insert (or pass "")))
  58            (?f (insert (or file "/"))))))
  59     (buffer-string)))
  60
  61 (defun url-nfs-build-filename (url)
  62   (let* ((host (url-host url))
  63          (port (string-to-int (url-port url)))
  64          (pass (url-password url))
  65          (user (url-user url))
  66          (file (url-filename url)))
  67     (url-generic-parse-url
  68      (url-nfs-unescape url-nfs-automounter-directory-spec
  69                        host port user pass file))))
  70
  71 (defun url-nfs (url callback cbargs)
  72   (url-file (url-nfs-build-filename url) callback cbargs))
  73
  74 (defmacro url-nfs-create-wrapper (method args)
  75   (` (defun (, (intern (format "url-nfs-%s" method))) (, args)
  76        (, (format "NFS URL wrapper around `%s' call." method))
  77        (setq url (url-nfs-build-filename url))
  78        (and url ((, (intern (format "url-file-%s" method)))
  79                  (,@ (remove '&rest (remove '&optional args))))))))
  80
  81 (url-nfs-create-wrapper file-exists-p (url))
  82 (url-nfs-create-wrapper file-attributes (url))
  83 (url-nfs-create-wrapper file-symlink-p (url))
  84 (url-nfs-create-wrapper file-readable-p (url))
  85 (url-nfs-create-wrapper file-writable-p (url))
  86 (url-nfs-create-wrapper file-executable-p (url))
  87 (if (featurep 'xemacs)
  88     (progn
  89       (url-nfs-create-wrapper directory-files (url &optional full match nosort files-only))
  90       (url-nfs-create-wrapper file-truename (url &optional default)))
  91   (url-nfs-create-wrapper directory-files (url &optional full match nosort))
  92   (url-nfs-create-wrapper file-truename (url &optional counter prev-dirs)))
  93
  94 (provide 'url-nfs)
  95
  96 ;;; arch-tag: cdf9c9ba-b7d2-4c29-8b48-7ae9bbc0d437