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[Emacs-diffs] Changes to emacs/lisp/url/url-gw.el [emacs-unicode-2]
From: |
Miles Bader |
Subject: |
[Emacs-diffs] Changes to emacs/lisp/url/url-gw.el [emacs-unicode-2] |
Date: |
Thu, 14 Oct 2004 05:14:20 -0400 |
Index: emacs/lisp/url/url-gw.el
diff -c /dev/null emacs/lisp/url/url-gw.el:1.3.4.1
*** /dev/null Thu Oct 14 08:50:57 2004
--- emacs/lisp/url/url-gw.el Thu Oct 14 08:49:52 2004
***************
*** 0 ****
--- 1,268 ----
+ ;;; url-gw.el --- Gateway munging for URL loading
+ ;; Author: Bill Perry <address@hidden>
+ ;; Keywords: comm, data, processes
+
+
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ ;;; Copyright (c) 1997, 1998, 2004 Free Software Foundation, Inc.
+ ;;;
+ ;;; 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 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.
+
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ (eval-when-compile (require 'cl))
+ (require 'url-vars)
+
+ ;; Fixme: support SSH explicitly or via a url-gateway-rlogin-program?
+
+ (autoload 'socks-open-network-stream "socks")
+ (autoload 'open-ssl-stream "ssl")
+ (autoload 'open-tls-stream "tls")
+
+ (defgroup url-gateway nil
+ "URL gateway variables"
+ :group 'url)
+
+ (defcustom url-gateway-local-host-regexp nil
+ "*A regular expression specifying local hostnames/machines."
+ :type '(choice (const nil) regexp)
+ :group 'url-gateway)
+
+ (defcustom url-gateway-prompt-pattern
+ "^[^#$%>;]*[#$%>;] *" ;; "bash\\|\$ *\r?$\\|> *\r?"
+ "*A regular expression matching a shell prompt."
+ :type 'regexp
+ :group 'url-gateway)
+
+ (defcustom url-gateway-rlogin-host nil
+ "*What hostname to actually rlog into before doing a telnet."
+ :type '(choice (const nil) string)
+ :group 'url-gateway)
+
+ (defcustom url-gateway-rlogin-user-name nil
+ "*Username to log into the remote machine with when using rlogin."
+ :type '(choice (const nil) string)
+ :group 'url-gateway)
+
+ (defcustom url-gateway-rlogin-parameters '("telnet" "-8")
+ "*Parameters to `url-open-rlogin'.
+ This list will be used as the parameter list given to rsh."
+ :type '(repeat string)
+ :group 'url-gateway)
+
+ (defcustom url-gateway-telnet-host nil
+ "*What hostname to actually login to before doing a telnet."
+ :type '(choice (const nil) string)
+ :group 'url-gateway)
+
+ (defcustom url-gateway-telnet-parameters '("exec" "telnet" "-8")
+ "*Parameters to `url-open-telnet'.
+ This list will be executed as a command after logging in via telnet."
+ :type '(repeat string)
+ :group 'url-gateway)
+
+ (defcustom url-gateway-telnet-login-prompt "^\r*.?login:"
+ "*Prompt that tells us we should send our username when loggin in w/telnet."
+ :type 'regexp
+ :group 'url-gateway)
+
+ (defcustom url-gateway-telnet-password-prompt "^\r*.?password:"
+ "*Prompt that tells us we should send our password when loggin in w/telnet."
+ :type 'regexp
+ :group 'url-gateway)
+
+ (defcustom url-gateway-telnet-user-name nil
+ "User name to log in via telnet with."
+ :type '(choice (const nil) string)
+ :group 'url-gateway)
+
+ (defcustom url-gateway-telnet-password nil
+ "Password to use to log in via telnet with."
+ :type '(choice (const nil) string)
+ :group 'url-gateway)
+
+ (defcustom url-gateway-broken-resolution nil
+ "*Whether to use nslookup to resolve hostnames.
+ This should be used when your version of Emacs cannot correctly use DNS,
+ but your machine can. This usually happens if you are running a statically
+ linked Emacs under SunOS 4.x"
+ :type 'boolean
+ :group 'url-gateway)
+
+ (defcustom url-gateway-nslookup-program "nslookup"
+ "*If non-NIL then a string naming nslookup program."
+ :type '(choice (const :tag "None" :value nil) string)
+ :group 'url-gateway)
+
+ ;; Stolen from ange-ftp
+ ;;;###autoload
+ (defun url-gateway-nslookup-host (host)
+ "Attempt to resolve the given HOST using nslookup if possible."
+ (interactive "sHost: ")
+ (if url-gateway-nslookup-program
+ (let ((proc (start-process " *nslookup*" " *nslookup*"
+ url-gateway-nslookup-program host))
+ (res host))
+ (process-kill-without-query proc)
+ (save-excursion
+ (set-buffer (process-buffer proc))
+ (while (memq (process-status proc) '(run open))
+ (accept-process-output proc))
+ (goto-char (point-min))
+ (if (re-search-forward "Name:.*\nAddress: *\\(.*\\)$" nil t)
+ (setq res (buffer-substring (match-beginning 1)
+ (match-end 1))))
+ (kill-buffer (current-buffer)))
+ res)
+ host))
+
+ ;; Stolen from red gnus nntp.el
+ (defun url-wait-for-string (regexp proc)
+ "Wait until string matching REGEXP arrives in process PROC's buffer."
+ (let ((buf (current-buffer)))
+ (goto-char (point-min))
+ (while (not (re-search-forward regexp nil t))
+ (accept-process-output proc)
+ (set-buffer buf)
+ (goto-char (point-min)))))
+
+ ;; Stolen from red gnus nntp.el
+ (defun url-open-rlogin (name buffer host service)
+ "Open a connection using rsh."
+ (if (not (stringp service))
+ (setq service (int-to-string service)))
+ (let ((proc (if url-gateway-rlogin-user-name
+ (start-process
+ name buffer "rsh"
+ url-gateway-rlogin-host "-l" url-gateway-rlogin-user-name
+ (mapconcat 'identity
+ (append url-gateway-rlogin-parameters
+ (list host service)) " "))
+ (start-process
+ name buffer "rsh" url-gateway-rlogin-host
+ (mapconcat 'identity
+ (append url-gateway-rlogin-parameters
+ (list host service))
+ " ")))))
+ (set-buffer buffer)
+ (url-wait-for-string "^\r*200" proc)
+ (beginning-of-line)
+ (delete-region (point-min) (point))
+ proc))
+
+ ;; Stolen from red gnus nntp.el
+ (defun url-open-telnet (name buffer host service)
+ (if (not (stringp service))
+ (setq service (int-to-string service)))
+ (save-excursion
+ (set-buffer (get-buffer-create buffer))
+ (erase-buffer)
+ (let ((proc (start-process name buffer "telnet" "-8"))
+ (case-fold-search t))
+ (when (memq (process-status proc) '(open run))
+ (process-send-string proc "set escape \^X\n")
+ (process-send-string proc (concat
+ "open " url-gateway-telnet-host "\n"))
+ (url-wait-for-string url-gateway-telnet-login-prompt proc)
+ (process-send-string
+ proc (concat
+ (or url-gateway-telnet-user-name
+ (setq url-gateway-telnet-user-name (read-string "login: ")))
+ "\n"))
+ (url-wait-for-string url-gateway-telnet-password-prompt proc)
+ (process-send-string
+ proc (concat
+ (or url-gateway-telnet-password
+ (setq url-gateway-telnet-password
+ (funcall url-passwd-entry-func "Password: ")))
+ "\n"))
+ (erase-buffer)
+ (url-wait-for-string url-gateway-prompt-pattern proc)
+ (process-send-string
+ proc (concat (mapconcat 'identity
+ (append url-gateway-telnet-parameters
+ (list host service)) " ") "\n"))
+ (url-wait-for-string "^\r*Escape character.*\r*\n+" proc)
+ (delete-region (point-min) (match-end 0))
+ (process-send-string proc "\^]\n")
+ (url-wait-for-string "^telnet" proc)
+ (process-send-string proc "mode character\n")
+ (accept-process-output proc 1)
+ (sit-for 1)
+ (goto-char (point-min))
+ (forward-line 1)
+ (delete-region (point) (point-max)))
+ proc)))
+
+ ;;;###autoload
+ (defun url-open-stream (name buffer host service)
+ "Open a stream to HOST, possibly via a gateway.
+ Args per `open-network-stream'.
+ Will not make a connexion if `url-gateway-unplugged' is non-nil."
+ (unless url-gateway-unplugged
+ (let ((gw-method (if (and url-gateway-local-host-regexp
+ (not (eq 'tls url-gateway-method))
+ (not (eq 'ssl url-gateway-method))
+ (string-match
+ url-gateway-local-host-regexp
+ host))
+ 'native
+ url-gateway-method))
+ ;;; ;; This hack is for OS/2 Emacs so that it will not do bogus CRLF
+ ;;; ;; conversions while trying to be 'helpful'
+ ;;; (tcp-binary-process-output-services (if (stringp service)
+ ;;; (list service)
+ ;;; (list service
+ ;;; (int-to-string service))))
+
+ ;; An attempt to deal with denied connections, and attempt
+ ;; to reconnect
+ (cur-retries 0)
+ (retry t)
+ (errobj nil)
+ (conn nil))
+
+ ;; If the user told us to do DNS for them, do it.
+ (if url-gateway-broken-resolution
+ (setq host (url-gateway-nslookup-host host)))
+
+ (condition-case errobj
+ ;; This is a clean way to ensure the new process inherits the
+ ;; right coding systems in both Emacs and XEmacs.
+ (let ((coding-system-for-read 'binary)
+ (coding-system-for-write 'binary))
+ (setq conn (case gw-method
+ (tls
+ (open-tls-stream name buffer host service))
+ (ssl
+ (open-ssl-stream name buffer host service))
+ ((native)
+ (open-network-stream name buffer host service))
+ (socks
+ (socks-open-network-stream name buffer host service))
+ (telnet
+ (url-open-telnet name buffer host service))
+ (rlogin
+ (url-open-rlogin name buffer host service))
+ (otherwise
+ (error "Bad setting of url-gateway-method: %s"
+ url-gateway-method)))))
+ (error
+ (setq conn nil)))
+ conn)))
+
+ (provide 'url-gw)
+
+ ;;; arch-tag: 1c4c0317-6d03-45b8-b3f3-838bd8f9d838
- [Emacs-diffs] Changes to emacs/lisp/url/url-gw.el [emacs-unicode-2],
Miles Bader <=