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- ;;; url-file.el --- File retrieval code
- ;; Author: wmperry
- ;; Created: 1997/12/24 23:06:53
- ;; Version: 1.26
- ;; Keywords: comm, data, processes
-
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- ;;; Copyright (c) 1993-1996 by William M. Perry <wmperry@cs.indiana.edu>
- ;;; Copyright (c) 1996, 1997 Free Software Foundation, Inc.
- ;;;
- ;;; This file is not part of GNU Emacs, but the same permissions apply.
- ;;;
- ;;; 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 2, 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; see the file COPYING. If not, write to the
- ;;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- ;;; Boston, MA 02111-1307, USA.
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
- (require 'url-vars)
- (require 'mule-sysdp)
- (require 'url-parse)
-
- (defun url-insert-possibly-compressed-file (fname &rest args)
- ;; Insert a file into a buffer, checking for compressed versions.
- (let ((compressed nil)
- ;;
- ;; F*** *U** **C* ***K!!!
- ;; We cannot just use insert-file-contents-literally here, because
- ;; then we would lose big time with ange-ftp. *sigh*
- (crypt-encoding-alist nil)
- (jka-compr-compression-info-list nil)
- (jam-zcat-filename-list nil)
- (file-coding-system-for-read mule-no-coding-system)
- (coding-system-for-read mule-no-coding-system))
- (setq compressed
- (cond
- ((file-exists-p fname)
- (if (string-match "\\.\\(z\\|gz\\|Z\\)$" fname)
- (case (intern (match-string 1 fname))
- ((z gz)
- (setq url-current-mime-headers (cons
- (cons
- "content-transfer-encoding"
- "gzip")
- url-current-mime-headers)))
- (Z
- (setq url-current-mime-headers (cons
- (cons
- "content-transfer-encoding"
- "compress")
- url-current-mime-headers))))
- nil))
- ((file-exists-p (concat fname ".Z"))
- (setq fname (concat fname ".Z")
- url-current-mime-headers (cons (cons
- "content-transfer-encoding"
- "compress")
- url-current-mime-headers)))
- ((file-exists-p (concat fname ".gz"))
- (setq fname (concat fname ".gz")
- url-current-mime-headers (cons (cons
- "content-transfer-encoding"
- "gzip")
- url-current-mime-headers)))
- ((file-exists-p (concat fname ".z"))
- (setq fname (concat fname ".z")
- url-current-mime-headers (cons (cons
- "content-transfer-encoding"
- "gzip")
- url-current-mime-headers)))
- (t
- (error "File not found %s" fname))))
- (apply 'insert-file-contents fname args)
- (set-buffer-modified-p nil)))
-
- (defvar url-dired-minor-mode-map
- (let ((map (make-sparse-keymap)))
- (define-key map "\C-m" 'url-dired-find-file)
- (if url-running-xemacs
- (define-key map [button2] 'url-dired-find-file-mouse)
- (define-key map [mouse-2] 'url-dired-find-file-mouse))
- map)
- "Keymap used when browsing directories.")
-
- (defvar url-dired-minor-mode nil
- "Whether we are in url-dired-minor-mode")
-
- (make-variable-buffer-local 'url-dired-minor-mode)
-
- (defun url-dired-find-file ()
- "In dired, visit the file or directory named on this line, using Emacs-W3."
- (interactive)
- (w3-open-local (dired-get-filename)))
-
- (defun url-dired-find-file-mouse (event)
- "In dired, visit the file or directory name you click on, using Emacs-W3."
- (interactive "@e")
- (if (event-point event)
- (progn
- (goto-char (event-point event))
- (url-dired-find-file))))
-
- (defun url-dired-minor-mode (&optional arg)
- "Minor mode for directory browsing with Emacs-W3."
- (interactive "P")
- (cond
- ((null arg)
- (setq url-dired-minor-mode (not url-dired-minor-mode)))
- ((equal 0 arg)
- (setq url-dired-minor-mode nil))
- (t
- (setq url-dired-minor-mode t))))
-
- (add-minor-mode 'url-dired-minor-mode " URL" url-dired-minor-mode-map)
-
- (defun url-format-directory (dir)
- ;; Format the files in DIR into hypertext
- (kill-buffer (current-buffer))
- (find-file dir)
- (url-dired-minor-mode t))
-
- (defun url-host-is-local-p (host)
- "Return t iff HOST references our local machine."
- (let ((case-fold-search t))
- (or
- (null host)
- (string= "" host)
- (equal (downcase host) (downcase (system-name)))
- (and (string-match "^localhost$" host) t)
- (and (not (string-match (regexp-quote ".") host))
- (equal (downcase host) (if (string-match (regexp-quote ".")
- (system-name))
- (substring (system-name) 0
- (match-beginning 0))
- (system-name)))))))
-
- (defun url-file-build-continuation (name)
- (list 'url-file-asynch-callback
- name (current-buffer)
- url-current-callback-func url-current-callback-data))
-
- (defun url-file-asynch-callback (x y name buff func args &optional efs)
- (if (featurep 'efs)
- ;; EFS passes us an extra argument
- (setq name buff
- buff func
- func args
- args efs))
- (cond
- ((not name) nil)
- ((not (file-exists-p name)) nil)
- (t
- (if (not buff)
- (setq buff (generate-new-buffer " *url-asynch-file*")))
- (set-buffer buff)
- (insert-file-contents-literally name)
- (condition-case ()
- (delete-file name)
- (error nil))))
- (if func
- (apply func args)
- (url-sentinel (current-buffer) nil)))
-
- (defun url-file (url)
- ;; Find a file
- (let* ((urlobj (url-generic-parse-url url))
- (user (url-user urlobj))
- (pass (url-password urlobj))
- (site (url-host urlobj))
- (file (url-unhex-string (url-filename urlobj)))
- (dest (url-target urlobj))
- (filename (if (or user (not (url-host-is-local-p site)))
- (concat "/" (or user "anonymous") "@" site ":" file)
- (if (and (memq system-type
- '(emx ms-dos windows-nt ms-windows))
- (string-match "^/[a-z][A-Z]:/" file))
- (substring file 1)
- file)))
- (viewer (mm-mime-info
- (mm-extension-to-mime (url-file-extension file))))
- (pos-index (if url-directory-index-file
- (expand-file-name url-directory-index-file filename))))
- (url-clear-tmp-buffer)
- (and user pass
- (cond
- ((featurep 'ange-ftp)
- (ange-ftp-set-passwd site user pass))
- ((or (featurep 'efs) (featurep 'efs-auto))
- (efs-set-passwd site user pass))
- (t
- nil)))
- (if (and pos-index
- (file-exists-p pos-index)
- (file-readable-p pos-index))
- (setq filename pos-index))
- (setq url-current-mime-type (mm-extension-to-mime
- (url-file-extension filename)))
- (cond
- ((file-directory-p filename)
- (if (not (string-match "/$" filename))
- (setq filename (concat filename "/")))
- (if (not (string-match "/$" file))
- (setq file (concat file "/")))
- (url-set-filename urlobj file)
- (url-format-directory filename))
- (url-be-asynchronous
- (cond
- ((file-exists-p filename) nil)
- ((file-exists-p (concat filename ".Z"))
- (setq filename (concat filename ".Z")))
- ((file-exists-p (concat filename ".gz"))
- (setq filename (concat filename ".gz")))
- ((file-exists-p (concat filename ".z"))
- (setq filename (concat filename ".z")))
- (t nil))
- (let ((new (mm-generate-unique-filename)))
- (cond
- ((url-host-is-local-p site)
- (if (and (file-exists-p filename)
- (file-readable-p filename))
- (insert-file-contents-literally filename))
- (if (featurep 'efs)
- (url-file-asynch-callback nil nil nil nil nil
- url-current-callback-func
- url-current-callback-data)
- (url-file-asynch-callback nil nil nil nil
- url-current-callback-func
- url-current-callback-data)))
- ((featurep 'ange-ftp)
- (ange-ftp-copy-file-internal filename (expand-file-name new) t
- nil t
- (url-file-build-continuation new)
- t))
- ((or (featurep 'efs) (featurep 'efs-auto))
- (autoload 'efs-copy-file-internal "efs")
- (efs-copy-file-internal filename (efs-ftp-path filename)
- new (efs-ftp-path new)
- t nil 0
- (url-file-build-continuation new)
- 0 nil)))))
- (t
- (let ((errobj nil))
- (if (or url-source ; Need it in a buffer
- (and (symbolp viewer)
- (not (eq viewer 'w3-default-local-file)))
- (stringp viewer))
- (condition-case errobj
- (url-insert-possibly-compressed-file filename t)
- (error
- (url-save-error errobj)
- (url-retrieve (concat "www://error/nofile/" file))))))))))
-
- (fset 'url-ftp 'url-file)
-
- (provide 'url-file)
-