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bc511a64f6
Most of this change is to boilerplate commentary such as license URLs. This change was prompted by ftp://ftp.gnu.org's going-away party, planned for November. Change these FTP URLs to https://ftp.gnu.org instead. Make similar changes for URLs to other organizations moving away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and fsf.org when this works, as this will further help defend against man-in-the-middle attacks (for this part I omitted the MS-DOS and MS-Windows sources and the test tarballs to keep the workload down). HTTPS is not fully working to lists.gnu.org so I left those URLs alone for now.
102 lines
3.2 KiB
EmacsLisp
102 lines
3.2 KiB
EmacsLisp
;;; url-about.el --- Show internal URLs
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;; Copyright (C) 2001, 2004-2017 Free Software Foundation, Inc.
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;; Keywords: comm, data, processes, hypermedia
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;; This file is part of GNU Emacs.
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;;
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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 <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; Code:
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(require 'url-util)
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(require 'url-parse)
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(defun url-probe-protocols ()
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"Return a list of all potential URL schemes."
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(or (get 'url-extension-protocols 'probed)
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(mapc (lambda (s) (url-scheme-get-property s 'name))
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(or (get 'url-extension-protocols 'schemes)
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(let ((schemes '("info" "man" "rlogin" "telnet"
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"tn3270" "data" "snews")))
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(mapc (lambda (d)
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(mapc (lambda (f)
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(if (string-match "url-\\(.*\\).el$" f)
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(push (match-string 1 f) schemes)))
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(directory-files d nil "^url-.*\\.el$")))
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load-path)
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(put 'url-extension-protocols 'schemes schemes)
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schemes)))))
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(defvar url-scheme-registry)
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(defun url-about-protocols (url)
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(url-probe-protocols)
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(insert "<html>\n"
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" <head>\n"
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" <title>Supported Protocols</title>\n"
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" </head>\n"
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" <body>\n"
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" <h1>Supported Protocols - URL v" url-version "</h1>\n"
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" <table width='100%' border='1'>\n"
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" <tr>\n"
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" <td>Protocol\n"
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" <td>Properties\n"
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" <td>Description\n"
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" </tr>\n")
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(mapc (lambda (k)
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(if (string= k "proxy")
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;; Ignore the proxy setting... its magic!
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nil
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(insert " <tr>\n")
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;; The name of the protocol
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(insert " <td valign=top>" (or (url-scheme-get-property k 'name) k) "\n")
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;; Now the properties. Currently just asynchronous
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;; status, default port number, and proxy status.
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(insert " <td valign=top>"
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(if (url-scheme-get-property k 'asynchronous-p) "As" "S")
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"ynchronous<br>\n"
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(if (url-scheme-get-property k 'default-port)
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(format "Default Port: %d<br>\n"
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(url-scheme-get-property k 'default-port)) "")
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(if (assoc k url-proxy-services)
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(format "Proxy: %s<br>\n" (assoc k url-proxy-services)) ""))
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;; Now the description...
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(insert " <td valign=top>"
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(or (url-scheme-get-property k 'description) "N/A"))))
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(sort (let (x) (maphash (lambda (k v) (push k x)) url-scheme-registry) x) 'string-lessp))
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(insert " </table>\n"
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" </body>\n"
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"</html>\n"))
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(defun url-about (url)
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"Show internal URLs."
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(let* ((item (downcase (url-filename url)))
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(func (intern (format "url-about-%s" item))))
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(if (fboundp func)
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(progn
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(set-buffer (generate-new-buffer " *about-data*"))
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(insert "Content-type: text/plain\n\n")
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(funcall func url)
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(current-buffer))
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(error "URL does not know about `%s'" item))))
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(provide 'url-about)
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;;; url-about.el ends here
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