HCoop / bpt / emacs.git / blame
| Commit | Line | Data |
|---|---|---|
| 9ea49b28 LMI |
1 | ;;; url-domsuf.el --- Say what domain names can have cookies set. |
| 2 | ||
| 3 | ;; Copyright (C) 2011 Free Software Foundation, Inc. | |
| 4 | ||
| 5 | ;; Keywords: comm, data, processes, hypermedia | |
| 6 | ||
| 7 | ;; This file is part of GNU Emacs. | |
| 8 | ;; | |
| 9 | ;; GNU Emacs is free software: you can redistribute it and/or modify | |
| 10 | ;; it under the terms of the GNU General Public License as published by | |
| 11 | ;; the Free Software Foundation, either version 3 of the License, or | |
| 12 | ;; (at your option) any later version. | |
| 13 | ||
| 14 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
| 15 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 | ;; GNU General Public License for more details. | |
| 18 | ||
| 19 | ;; You should have received a copy of the GNU General Public License | |
| 20 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. | |
| 21 | ||
| 22 | ;;; Commentary: | |
| 23 | ||
| 24 | ;; The rules for what domains can have cookies set is defined here: | |
| 25 | ;; http://publicsuffix.org/list/ | |
| 26 | ||
| 27 | ;;; Code: | |
| 28 | ||
| 29 | (defvar url-domsuf-domains nil) | |
| 30 | ||
| 31 | (defun url-domsuf-parse-file () | |
| 32 | (with-temp-buffer | |
| 33 | (insert-file-contents | |
| 34 | (expand-file-name "publicsuffix.txt" data-directory)) | |
| 35 | (let ((domains nil) | |
| 36 | domain exception) | |
| 37 | (while (not (eobp)) | |
| 38 | (when (not (looking-at "[/\n\t ]")) | |
| 39 | ;; !pref.aichi.jp means that it's allowed. | |
| 40 | (if (not (eq (following-char) ?!)) | |
| 41 | (setq exception nil) | |
| 42 | (setq exception t) | |
| 43 | (forward-char 1)) | |
| 44 | (setq domain (buffer-substring (point) (line-end-position))) | |
| 45 | (cond | |
| 46 | ((string-match "\\`\\*\\." domain) | |
| 47 | (setq domain (substring domain 2)) | |
| 48 | (push (cons domain (1+ (length (split-string domain "[.]")))) | |
| 49 | domains)) | |
| 50 | (exception | |
| 51 | (push (cons domain t) domains)) | |
| 52 | (t | |
| 53 | (push (cons domain nil) domains)))) | |
| 54 | (forward-line 1)) | |
| 55 | (setq url-domsuf-domains (nreverse domains))))) | |
| 56 | ||
| 57 | (defun url-domsuf-cookie-allowed-p (domain) | |
| 58 | (unless url-domsuf-domains | |
| 59 | (url-domsuf-parse-file)) | |
| 60 | (let* ((allowedp t) | |
| 61 | (domain-bits (split-string domain "[.]")) | |
| 62 | (length (length domain-bits)) | |
| 63 | (upper-domain (mapconcat 'identity (cdr domain-bits) ".")) | |
| 64 | entry modifier) | |
| 65 | (dolist (elem url-domsuf-domains) | |
| 66 | (setq entry (car elem) | |
| 67 | modifier (cdr elem)) | |
| 68 | (cond | |
| 69 | ;; "com" | |
| 70 | ((and (null modifier) | |
| 71 | (string= domain entry)) | |
| 72 | (setq allowedp nil)) | |
| 73 | ;; "!pref.hokkaido.jp" | |
| 74 | ((and (eq modifier t) | |
| 75 | (string= domain entry)) | |
| 76 | (setq allowedp t)) | |
| 77 | ;; "*.ar" | |
| 78 | ((and (numberp modifier) | |
| 79 | (= length modifier) | |
| 80 | (string= entry upper-domain)) | |
| 81 | (setq allowedp nil)))) | |
| 82 | allowedp)) | |
| 83 | ||
| 84 | ;; Tests: | |
| 85 | ||
| 86 | ;; (url-domsuf-cookie-allowed-p "com") => nil | |
| 87 | ;; (url-domsuf-cookie-allowed-p "foo.bar.ar") => t | |
| 88 | ;; (url-domsuf-cookie-allowed-p "bar.ar") => nil | |
| 89 | ;; (url-domsuf-cookie-allowed-p "co.uk") => nil | |
| 90 | ;; (url-domsuf-cookie-allowed-p "foo.bar.hokkaido.jo") => t | |
| 91 | ;; (url-domsuf-cookie-allowed-p "bar.hokkaido.jp") => nil | |
| 92 | ;; (url-domsuf-cookie-allowed-p "pref.hokkaido.jp") => t | |
| 93 | ||
| 94 | (provide 'url-domsuf) | |
| 95 | ||
| 96 | ;;; url-domsuf.el ends here |