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a464a6c73a
* woman.el, winner.el, vc/vc-rcs.el, vc/vc-hooks.el, vc/vc-hg.el: * vc/vc-git.el, vc/vc-dir.el, vc/vc-bzr.el, vc/vc-annotate.el: * textmodes/tex-mode.el, textmodes/sgml-mode.el, tar-mode.el: * strokes.el, ses.el, server.el, progmodes/js.el, progmodes/gdb-mi.el: * progmodes/flymake.el, progmodes/ebrowse.el, progmodes/compile.el: * play/tetris.el, play/snake.el, play/pong.el, play/landmark.el: * play/hanoi.el, play/decipher.el, play/5x5.el, nxml/nxml-mode.el: * net/secrets.el, net/quickurl.el, midnight.el, mail/footnote.el: * image-dired.el, ibuffer.el, ibuf-macs.el, ibuf-ext.el, hexl.el: * eshell/eshell.el, eshell/esh-io.el, eshell/esh-ext.el: * eshell/esh-cmd.el, eshell/em-ls.el, eshell/em-hist.el: * eshell/em-cmpl.el, eshell/em-banner.el: * url/url.el, url/url-queue.el, url/url-parse.el, url/url-http.el: * url/url-future.el, url/url-dav.el, url/url-cookie.el: * calendar/parse-time.el, test/eshell.el: Use cl-lib. * wid-browse.el, wdired.el, vc/vc.el, vc/vc-mtn.el, vc/vc-cvs.el: * vc/vc-arch.el, tree-widget.el, textmodes/texinfo.el: * textmodes/refill.el, textmodes/css-mode.el, term/tvi970.el: * term/ns-win.el, term.el, shell.el, ps-samp.el: * progmodes/perl-mode.el, progmodes/pascal.el, progmodes/gud.el: * progmodes/glasses.el, progmodes/etags.el, progmodes/cwarn.el: * play/gamegrid.el, play/bubbles.el, novice.el, notifications.el: * net/zeroconf.el, net/xesam.el, net/snmp-mode.el, net/mairix.el: * net/ldap.el, net/eudc.el, net/browse-url.el, man.el: * mail/mailheader.el, mail/feedmail.el: * url/url-util.el, url/url-privacy.el, url/url-nfs.el, url/url-misc.el: * url/url-methods.el, url/url-gw.el, url/url-file.el, url/url-expand.el: Dont use CL. * ibuf-ext.el (ibuffer-mark-old-buffers): Use float-time. * eshell/esh-opt.el (eshell-eval-using-options): Quote code with `lambda' rather than with `quote'. (eshell-do-opt): Adjust accordingly. (eshell-process-option): Simplify. * eshell/esh-var.el: * eshell/em-script.el: Require `esh-opt' for eshell-eval-using-options. * emacs-pcase.el (pcase--dontcare-upats, pcase--let*) (pcase--expand, pcase--u1): Rename pcase's internal `dontcare' pattern to `pcase--dontcare'. * emacs-cl.el (labels): Mark obsolete. (cl--letf, letf): Move to cl-lib. (cl--letf*, letf*): Remove. * emacs-cl-lib.el (cl-nth-value): Use defalias. * emacs-cl-macs.el (cl-dolist, cl-dotimes): Add indent rule. (cl-progv): Rewrite. (cl--letf, cl-letf): Move from cl.el. (cl-letf*): New macro. * emacs-cl-extra.el (cl--progv-before, cl--progv-after): Remove.
259 lines
8.4 KiB
EmacsLisp
259 lines
8.4 KiB
EmacsLisp
;;; url-gw.el --- Gateway munging for URL loading
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;; Copyright (C) 1997-1998, 2004-2012 Free Software Foundation, Inc.
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;; Author: Bill Perry <wmperry@gnu.org>
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;; Keywords: comm, data, processes
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;; This file is part of GNU Emacs.
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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 <http://www.gnu.org/licenses/>.
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;;; Code:
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(require 'url-vars)
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;; Fixme: support SSH explicitly or via a url-gateway-rlogin-program?
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(autoload 'socks-open-network-stream "socks")
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(defgroup url-gateway nil
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"URL gateway variables."
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:group 'url)
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(defcustom url-gateway-local-host-regexp nil
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"A regular expression specifying local hostnames/machines."
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:type '(choice (const nil) regexp)
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:group 'url-gateway)
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(defcustom url-gateway-prompt-pattern
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"^[^#$%>;]*[#$%>;] *" ;; "bash\\|\$ *\r?$\\|> *\r?"
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"A regular expression matching a shell prompt."
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:type 'regexp
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:group 'url-gateway)
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(defcustom url-gateway-rlogin-host nil
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"What hostname to actually rlog into before doing a telnet."
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:type '(choice (const nil) string)
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:group 'url-gateway)
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(defcustom url-gateway-rlogin-user-name nil
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"Username to log into the remote machine with when using rlogin."
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:type '(choice (const nil) string)
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:group 'url-gateway)
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(defcustom url-gateway-rlogin-parameters '("telnet" "-8")
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"Parameters to `url-open-rlogin'.
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This list will be used as the parameter list given to rsh."
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:type '(repeat string)
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:group 'url-gateway)
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(defcustom url-gateway-telnet-host nil
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"What hostname to actually login to before doing a telnet."
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:type '(choice (const nil) string)
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:group 'url-gateway)
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(defcustom url-gateway-telnet-parameters '("exec" "telnet" "-8")
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"Parameters to `url-open-telnet'.
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This list will be executed as a command after logging in via telnet."
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:type '(repeat string)
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:group 'url-gateway)
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(defcustom url-gateway-telnet-login-prompt "^\r*.?login:"
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"Prompt that tells us we should send our username when logging in w/telnet."
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:type 'regexp
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:group 'url-gateway)
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(defcustom url-gateway-telnet-password-prompt "^\r*.?password:"
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"Prompt that tells us we should send our password when logging in w/telnet."
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:type 'regexp
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:group 'url-gateway)
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(defcustom url-gateway-telnet-user-name nil
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"User name to log in via telnet with."
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:type '(choice (const nil) string)
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:group 'url-gateway)
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(defcustom url-gateway-telnet-password nil
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"Password to use to log in via telnet with."
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:type '(choice (const nil) string)
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:group 'url-gateway)
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(defcustom url-gateway-broken-resolution nil
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"Whether to use nslookup to resolve hostnames.
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This should be used when your version of Emacs cannot correctly use DNS,
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but your machine can. This usually happens if you are running a statically
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linked Emacs under SunOS 4.x."
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:type 'boolean
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:group 'url-gateway)
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(defcustom url-gateway-nslookup-program "nslookup"
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"If non-nil then a string naming nslookup program."
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:type '(choice (const :tag "None" :value nil) string)
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:group 'url-gateway)
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;; Stolen from ange-ftp
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;;;###autoload
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(defun url-gateway-nslookup-host (host)
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"Attempt to resolve the given HOST using nslookup if possible."
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(interactive "sHost: ")
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(if url-gateway-nslookup-program
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(let ((proc (start-process " *nslookup*" " *nslookup*"
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url-gateway-nslookup-program host))
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(res host))
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(set-process-query-on-exit-flag proc nil)
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(with-current-buffer (process-buffer proc)
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(while (memq (process-status proc) '(run open))
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(accept-process-output proc))
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(goto-char (point-min))
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(if (re-search-forward "Name:.*\nAddress: *\\(.*\\)$" nil t)
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(setq res (buffer-substring (match-beginning 1)
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(match-end 1))))
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(kill-buffer (current-buffer)))
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res)
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host))
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;; Stolen from red gnus nntp.el
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(defun url-wait-for-string (regexp proc)
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"Wait until string matching REGEXP arrives in process PROC's buffer."
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(let ((buf (current-buffer)))
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(goto-char (point-min))
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(while (not (re-search-forward regexp nil t))
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(accept-process-output proc)
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(set-buffer buf)
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(goto-char (point-min)))))
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;; Stolen from red gnus nntp.el
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(defun url-open-rlogin (name buffer host service)
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"Open a connection using rsh."
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(if (not (stringp service))
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(setq service (int-to-string service)))
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(let ((proc (if url-gateway-rlogin-user-name
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(start-process
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name buffer "rsh"
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url-gateway-rlogin-host "-l" url-gateway-rlogin-user-name
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(mapconcat 'identity
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(append url-gateway-rlogin-parameters
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(list host service)) " "))
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(start-process
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name buffer "rsh" url-gateway-rlogin-host
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(mapconcat 'identity
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(append url-gateway-rlogin-parameters
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(list host service))
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" ")))))
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(set-buffer buffer)
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(url-wait-for-string "^\r*200" proc)
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(beginning-of-line)
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(delete-region (point-min) (point))
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proc))
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;; Stolen from red gnus nntp.el
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(defun url-open-telnet (name buffer host service)
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(if (not (stringp service))
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(setq service (int-to-string service)))
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(with-current-buffer (get-buffer-create buffer)
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(erase-buffer)
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(let ((proc (start-process name buffer "telnet" "-8"))
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(case-fold-search t))
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(when (memq (process-status proc) '(open run))
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(process-send-string proc "set escape \^X\n")
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(process-send-string proc (concat
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"open " url-gateway-telnet-host "\n"))
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(url-wait-for-string url-gateway-telnet-login-prompt proc)
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(process-send-string
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proc (concat
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(or url-gateway-telnet-user-name
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(setq url-gateway-telnet-user-name (read-string "login: ")))
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"\n"))
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(url-wait-for-string url-gateway-telnet-password-prompt proc)
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(process-send-string
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proc (concat
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(or url-gateway-telnet-password
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(setq url-gateway-telnet-password
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(read-passwd "Password: ")))
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"\n"))
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(erase-buffer)
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(url-wait-for-string url-gateway-prompt-pattern proc)
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(process-send-string
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proc (concat (mapconcat 'identity
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(append url-gateway-telnet-parameters
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(list host service)) " ") "\n"))
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(url-wait-for-string "^\r*Escape character.*\r*\n+" proc)
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(delete-region (point-min) (match-end 0))
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(process-send-string proc "\^]\n")
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(url-wait-for-string "^telnet" proc)
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(process-send-string proc "mode character\n")
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(accept-process-output proc 1)
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(sit-for 1)
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(goto-char (point-min))
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(forward-line 1)
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(delete-region (point) (point-max)))
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proc)))
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;;;###autoload
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(defun url-open-stream (name buffer host service)
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"Open a stream to HOST, possibly via a gateway.
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Args per `open-network-stream'.
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Will not make a connection if `url-gateway-unplugged' is non-nil.
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Might do a non-blocking connection; use `process-status' to check."
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(unless url-gateway-unplugged
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(let ((gw-method (if (and url-gateway-local-host-regexp
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(not (eq 'tls url-gateway-method))
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(not (eq 'ssl url-gateway-method))
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(string-match
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url-gateway-local-host-regexp
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host))
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'native
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url-gateway-method))
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;; An attempt to deal with denied connections, and attempt
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;; to reconnect
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(cur-retries 0)
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(retry t)
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(errobj nil)
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(conn nil))
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;; If the user told us to do DNS for them, do it.
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(if url-gateway-broken-resolution
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(setq host (url-gateway-nslookup-host host)))
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(condition-case errobj
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;; This is a clean way to ensure the new process inherits the
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;; right coding systems in both Emacs and XEmacs.
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(let ((coding-system-for-read 'binary)
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(coding-system-for-write 'binary))
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(setq conn (pcase gw-method
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((or `tls `ssl `native)
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(if (eq gw-method 'native)
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(setq gw-method 'plain))
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(open-network-stream
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name buffer host service
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:type gw-method
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;; Use non-blocking socket if we can.
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:nowait (featurep 'make-network-process
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'(:nowait t))))
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(`socks
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(socks-open-network-stream name buffer host service))
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(`telnet
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(url-open-telnet name buffer host service))
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(`rlogin
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(url-open-rlogin name buffer host service))
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(_
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(error "Bad setting of url-gateway-method: %s"
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url-gateway-method))))))
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conn)))
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(provide 'url-gw)
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;;; url-gw.el ends here
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