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|
;;; url-misc.el --- Misc Uniform Resource Locator retrieval code
;; Author: wmperry
;; Created: 1997/12/26 23:04:07
;; Version: 1.23
;; 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 'url-parse)
(require 'widget)
(autoload 'Info-goto-node "info" "" t)
(defun url-netrek (url)
;; Start a netrek client
(if (get-buffer url-working-buffer)
(kill-buffer url-working-buffer))
(let ((data (url-generic-parse-url url)))
(error
"I should launch netrek on: %s %s" (url-host data) (url-port data))))
(defun url-info (url)
;; Fetch an info node
(if (get-buffer url-working-buffer)
(kill-buffer url-working-buffer))
(let* ((data (url-generic-parse-url url))
(fname (url-filename data))
(node (url-unhex-string (or (url-target data) "Top"))))
(if (and fname node)
(Info-goto-node (concat "(" fname ")" node))
(error "Malformed url: %s" url))))
(defun url-finger (url)
;; Find a finger reference
(setq url-current-mime-headers '(("content-type" . "text/html"))
url-current-mime-type "text/html")
(set-buffer (get-buffer-create url-working-buffer))
(let* ((urlobj (if (vectorp url) url
(url-generic-parse-url url)))
(host (or (url-host urlobj) "localhost"))
(port (or (url-port urlobj)
(cdr-safe (assoc "finger" url-default-ports))))
(user (url-unhex-string (url-filename urlobj)))
(proc (url-open-stream "finger" url-working-buffer host
(string-to-int port))))
(if (not (processp proc))
nil
(process-kill-without-query proc)
(set-process-sentinel proc 'ignore)
(if (= (string-to-char user) ?/)
(setq user (substring user 1 nil)))
(goto-char (point-min))
(insert "<html>\n"
" <head>\n"
" <title>Finger information for " user "@" host "</title>\n"
" </head>\n"
" <body>\n"
" <h1>Finger information for " user "@" host "</h1>\n"
" <hr>\n"
" <pre>\n")
(process-send-string proc (concat user "\r\n"))
(while (memq (url-process-status proc) '(run open))
(url-after-change-function)
(url-accept-process-output proc))
(goto-char (point-min))
(url-replace-regexp "^Process .* exited .*code .*$" "")
(goto-char (point-max))
(insert " </pre>\n"
" </body>\n"
"</html>\n"))))
(defun url-do-terminal-emulator (type server port user)
(terminal-emulator
(generate-new-buffer (format "%s%s" (if user (concat user "@") "") server))
(case type
(rlogin "rlogin")
(telnet "telnet")
(tn3270 "tn3270")
(otherwise
(error "Unknown terminal emulator required: %s" type)))
(case type
(rlogin
(if user
(list server "-l" user)
(list server)))
(telnet
(if user (message "Please log in as user: %s" user))
(if port
(list server port)
(list server)))
(tn3270
(if user (message "Please log in as user: %s" user))
(list server)))))
(defun url-generic-emulator-loader (url)
(if (get-buffer url-working-buffer)
(kill-buffer url-working-buffer))
(or (string-match "^\\([^:]+\\):/*\\(.*@\\)*\\([^/]*\\)/*" url)
(error "Invalid URL: %s" url))
(let* ((type (intern (downcase (match-string 1 url))))
(server (match-string 3 url))
(name (if (match-beginning 2)
(substring url (match-beginning 2) (1- (match-end 2)))))
(port (if (string-match ":" server)
(prog1
(substring server (match-end 0))
(setq server (substring server 0 (match-beginning 0)))))))
(url-do-terminal-emulator type server port name)))
(fset 'url-rlogin 'url-generic-emulator-loader)
(fset 'url-telnet 'url-generic-emulator-loader)
(fset 'url-tn3270 'url-generic-emulator-loader)
(defun url-proxy (url)
;; Retrieve URL from a proxy.
;; Expects `url-using-proxy' to be bound to the specific proxy to use."
(let ((urlobj (url-generic-parse-url url)))
(url-set-target urlobj nil)
(url-http url-using-proxy (url-recreate-url urlobj))))
(defvar url-webmail-gateway "w3mail@gmd.de"
"*Where to send webmail requests")
(defvar url-webmail-switches '(" " "-uu -z" "-uu -z -s 100"))
(defun url-proxy-via-mail (url)
;; Return URL from a web->mail gateway
(let ((urlobj (url-generic-parse-url url)))
(funcall url-mail-command)
(set (make-local-variable 'inhibit-read-only) t)
(goto-char (point-min))
(if (search-forward mail-header-separator nil t)
(progn
(forward-char 1)
(delete-region (point) (point-max)))
(goto-char (point-max)))
(if (fboundp 'widget-minor-mode)
(widget-minor-mode 1))
(apply 'widget-create 'menu-choice
:value " "
:format "%[%t%] %v"
:tag "get"
(mapcar (lambda (x) (list 'choice-item :format "%v" x))
url-webmail-switches))
(insert " " url)
(if url-request-data
(insert "?" url-request-data))
(url-mail-goto-field "To")
(insert url-webmail-gateway)))
;; ftp://ietf.org/internet-drafts/draft-masinter-url-data-02.txt
(defun url-data (url)
(set-buffer (get-buffer-create url-working-buffer))
(let ((content-type nil)
(encoding nil)
(data nil))
(cond
((string-match "^data:\\([^;,]*\\);*\\([^,]*\\)," url)
(setq content-type (match-string 1 url)
encoding (match-string 2 url)
data (url-unhex-string (substring url (match-end 0))))
(if (= 0 (length content-type)) (setq content-type "text/plain"))
(if (= 0 (length encoding)) (setq encoding "8bit")))
(t nil))
(setq url-current-content-length (length data)
url-current-mime-type content-type
url-current-mime-encoding encoding
url-current-mime-headers (list (cons "content-type" content-type)
(cons "content-encoding" encoding)))
(and data (insert data))))
(provide 'url-misc)
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