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1 | ;;; auth-source.el --- authentication sources for Gnus and Emacs |
2 | ||
9b3ebcb6 | 3 | ;; Copyright (C) 2008 Free Software Foundation, Inc. |
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4 | |
5 | ;; Author: Ted Zlatanov <tzz@lifelogs.com> | |
6 | ;; Keywords: news | |
7 | ||
8 | ;; This file is part of GNU Emacs. | |
9 | ||
10 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
11 | ;; it under the terms of the GNU General Public License as published by | |
12 | ;; the Free Software Foundation; either version 3, or (at your option) | |
13 | ;; any later version. | |
14 | ||
15 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
19 | ||
20 | ;; You should have received a copy of the GNU General Public License | |
21 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
22 | ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
23 | ;; Boston, MA 02110-1301, USA. | |
24 | ||
25 | ;;; Commentary: | |
26 | ||
27 | ;; This is the auth-source.el package. It lets users tell Gnus how to | |
28 | ;; authenticate in a single place. Simplicity is the goal. Instead | |
29 | ;; of providing 5000 options, we'll stick to simple, easy to | |
30 | ;; understand options. | |
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31 | |
32 | ;; Easy setup: | |
33 | ;; (require 'auth-source) | |
34 | ;; (customize-variable 'auth-sources) ;; optional | |
35 | ||
36 | ;; now, whatever sources you've defined for password have to be available | |
37 | ||
38 | ;; if you want encrypted sources, which is strongly recommended, do | |
39 | ;; (require 'epa-file) | |
40 | ;; (epa-file-mode) | |
41 | ||
42 | ;; before you put some data in ~/.authinfo.gpg (the default place) | |
43 | ||
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44 | ;;; Code: |
45 | ||
46 | (eval-when-compile (require 'cl)) | |
9b3ebcb6 | 47 | (eval-when-compile (require 'netrc)) |
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48 | |
49 | (defgroup auth-source nil | |
50 | "Authentication sources." | |
9b3ebcb6 | 51 | :version "23.1" ;; No Gnus |
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52 | :group 'gnus) |
53 | ||
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54 | (defcustom auth-source-protocols '((imap "imap" "imaps" "143" "993") |
55 | (pop3 "pop3" "pop" "pop3s" "110" "995") | |
56 | (ssh "ssh" "22") | |
57 | (sftp "sftp" "115") | |
58 | (smtp "smtp" "25")) | |
59 | "List of authentication protocols and their names" | |
60 | ||
61 | :group 'auth-source | |
62 | :version "23.1" ;; No Gnus | |
63 | :type '(repeat :tag "Authentication Protocols" | |
64 | (cons :tag "Protocol Entry" | |
65 | (symbol :tag "Protocol") | |
66 | (repeat :tag "Names" | |
67 | (string :tag "Name"))))) | |
68 | ||
69 | ;;; generate all the protocols in a format Customize can use | |
70 | (defconst auth-source-protocols-customize | |
71 | (mapcar (lambda (a) | |
72 | (let ((p (car-safe a))) | |
73 | (list 'const | |
74 | :tag (upcase (symbol-name p)) | |
75 | p))) | |
76 | auth-source-protocols)) | |
77 | ||
78 | ;;; this default will be changed to ~/.authinfo.gpg | |
79 | (defcustom auth-sources '((:source "~/.authinfo.enc" :host t :protocol t)) | |
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80 | "List of authentication sources. |
81 | ||
82 | Each entry is the authentication type with optional properties." | |
83 | :group 'auth-source | |
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84 | :version "23.1" ;; No Gnus |
85 | :type `(repeat :tag "Authentication Sources" | |
86 | (list :tag "Source definition" | |
87 | (const :format "" :value :source) | |
88 | (string :tag "Authentication Source") | |
89 | (const :format "" :value :host) | |
d55fe5bb | 90 | (choice :tag "Host (machine) choice" |
9b3ebcb6 | 91 | (const :tag "Any" t) |
d55fe5bb | 92 | (regexp :tag "Host (machine) regular expression (TODO)") |
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93 | (const :tag "Fallback" nil)) |
94 | (const :format "" :value :protocol) | |
95 | (choice :tag "Protocol" | |
96 | (const :tag "Any" t) | |
97 | (const :tag "Fallback" nil) | |
98 | ,@auth-source-protocols-customize)))) | |
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99 | |
100 | ;; temp for debugging | |
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101 | ;; (unintern 'auth-source-protocols) |
102 | ;; (unintern 'auth-sources) | |
103 | ;; (customize-variable 'auth-sources) | |
104 | ;; (setq auth-sources nil) | |
105 | ;; (format "%S" auth-sources) | |
106 | ;; (customize-variable 'auth-source-protocols) | |
107 | ;; (setq auth-source-protocols nil) | |
108 | ;; (format "%S" auth-source-protocols) | |
109 | ;; (auth-source-pick "a" 'imap) | |
110 | ;; (auth-source-user-or-password "login" "imap.myhost.com" 'imap) | |
111 | ;; (auth-source-user-or-password "password" "imap.myhost.com" 'imap) | |
112 | ;; (auth-source-user-or-password-imap "login" "imap.myhost.com") | |
113 | ;; (auth-source-user-or-password-imap "password" "imap.myhost.com") | |
114 | ;; (auth-source-protocol-defaults 'imap) | |
115 | ||
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116 | (defun auth-source-pick (host protocol &optional fallback) |
117 | "Parse `auth-sources' for HOST, and PROTOCOL matches. | |
9b3ebcb6 | 118 | |
58a67d68 | 119 | Returns fallback choices (where PROTOCOL or HOST are nil) with FALLBACK t." |
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120 | (interactive "sHost: \nsProtocol: \n") ;for testing |
121 | (let (choices) | |
122 | (dolist (choice auth-sources) | |
58a67d68 | 123 | (let ((h (plist-get choice :host)) |
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124 | (p (plist-get choice :protocol))) |
125 | (when (and | |
126 | (or (equal t h) | |
127 | (and (stringp h) (string-match h host)) | |
128 | (and fallback (equal h nil))) | |
129 | (or (equal t p) | |
130 | (and (symbolp p) (equal p protocol)) | |
131 | (and fallback (equal p nil)))) | |
132 | (push choice choices)))) | |
133 | (if choices | |
134 | choices | |
135 | (unless fallback | |
58a67d68 | 136 | (auth-source-pick host protocol t))))) |
9b3ebcb6 | 137 | |
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138 | (defun auth-source-user-or-password (mode host protocol) |
139 | "Find user or password (from the string MODE) matching HOST and PROTOCOL." | |
9b3ebcb6 | 140 | (let (found) |
58a67d68 | 141 | (dolist (choice (auth-source-pick host protocol)) |
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142 | (setq found (netrc-machine-user-or-password |
143 | mode | |
144 | (plist-get choice :source) | |
145 | (list host) | |
146 | (list (format "%s" protocol)) | |
147 | (auth-source-protocol-defaults protocol))) | |
148 | (when found | |
149 | (return found))))) | |
150 | ||
151 | (defun auth-source-protocol-defaults (protocol) | |
152 | "Return a list of default ports and names for PROTOCOL." | |
153 | (cdr-safe (assoc protocol auth-source-protocols))) | |
154 | ||
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155 | (defun auth-source-user-or-password-imap (mode host) |
156 | (auth-source-user-or-password mode host 'imap)) | |
9b3ebcb6 | 157 | |
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158 | (defun auth-source-user-or-password-pop3 (mode host) |
159 | (auth-source-user-or-password mode host 'pop3)) | |
9b3ebcb6 | 160 | |
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161 | (defun auth-source-user-or-password-ssh (mode host) |
162 | (auth-source-user-or-password mode host 'ssh)) | |
9b3ebcb6 | 163 | |
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164 | (defun auth-source-user-or-password-sftp (mode host) |
165 | (auth-source-user-or-password mode host 'sftp)) | |
9b3ebcb6 | 166 | |
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167 | (defun auth-source-user-or-password-smtp (mode host) |
168 | (auth-source-user-or-password mode host 'smtp)) | |
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169 | |
170 | (provide 'auth-source) | |
171 | ||
172 | ;; arch-tag: ff1afe78-06e9-42c2-b693-e9f922cbe4ab | |
173 | ;;; auth-source.el ends here |