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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)
-