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9eb59592 | 1 | \input texinfo @c -*-texinfo-*- |
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2 | |
3 | @include gnus-overrides.texi | |
4 | ||
e280480a | 5 | @setfilename ../../info/auth |
5dc584b5 | 6 | @settitle Emacs auth-source Library @value{VERSION} |
9eb59592 | 7 | |
b8e0f0cd | 8 | @set VERSION 0.3 |
9eb59592 | 9 | |
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10 | @copying |
11 | This file describes the Emacs auth-source library. | |
12 | ||
acaf905b | 13 | Copyright @copyright{} 2008-2012 Free Software Foundation, Inc. |
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14 | |
15 | @quotation | |
16 | Permission is granted to copy, distribute and/or modify this document | |
17 | under the terms of the GNU Free Documentation License, Version 1.3 or | |
18 | any later version published by the Free Software Foundation; with no | |
19 | Invariant Sections, with the Front-Cover texts being ``A GNU Manual,'' | |
20 | and with the Back-Cover Texts as in (a) below. A copy of the license | |
21 | is included in the section entitled ``GNU Free Documentation License'' | |
22 | in the Emacs manual. | |
23 | ||
24 | (a) The FSF's Back-Cover Text is: ``You have the freedom to copy and | |
25 | modify this GNU manual. Buying copies from the FSF supports it in | |
26 | developing GNU and promoting software freedom.'' | |
27 | ||
28 | This document is part of a collection distributed under the GNU Free | |
29 | Documentation License. If you want to distribute this document | |
30 | separately from the collection, you can do so by adding a copy of the | |
31 | license to the document, as described in section 6 of the license. | |
32 | @end quotation | |
33 | @end copying | |
34 | ||
0c973505 | 35 | @dircategory Emacs lisp libraries |
5dc584b5 | 36 | @direntry |
62e034c2 | 37 | * Auth-source: (auth). The Emacs auth-source library. |
5dc584b5 | 38 | @end direntry |
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39 | |
40 | @titlepage | |
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41 | @ifset WEBHACKDEVEL |
42 | @title Emacs auth-source Library (DEVELOPMENT VERSION) | |
43 | @end ifset | |
44 | @ifclear WEBHACKDEVEL | |
9eb59592 | 45 | @title Emacs auth-source Library |
7fbf7cae | 46 | @end ifclear |
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47 | @author by Ted Zlatanov |
48 | @page | |
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49 | @vskip 0pt plus 1filll |
50 | @insertcopying | |
51 | @end titlepage | |
9eb59592 | 52 | |
5dc584b5 | 53 | @contents |
9eb59592 | 54 | |
5dc584b5 | 55 | @ifnottex |
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56 | @node Top |
57 | @top Emacs auth-source | |
58 | This manual describes the Emacs auth-source library. | |
59 | ||
60 | It is a way for multiple applications to share a single configuration | |
61 | (in Emacs and in files) for user convenience. | |
62 | ||
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63 | @insertcopying |
64 | ||
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65 | @menu |
66 | * Overview:: Overview of the auth-source library. | |
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67 | * Help for users:: |
68 | * Secret Service API:: | |
69 | * Help for developers:: | |
70 | * GnuPG and EasyPG Assistant Configuration:: | |
71 | * Index:: | |
72 | * Function Index:: | |
73 | * Variable Index:: | |
9eb59592 | 74 | @end menu |
5dc584b5 | 75 | @end ifnottex |
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76 | |
77 | @node Overview | |
78 | @chapter Overview | |
79 | ||
38dc51ba | 80 | The auth-source library is simply a way for Emacs and Gnus, among |
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81 | others, to answer the old burning question ``What are my user name and |
82 | password?'' | |
b0b63450 | 83 | |
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84 | (This is different from the old question about burning ``Where is the |
85 | fire extinguisher, please?''.) | |
86 | ||
87 | The auth-source library supports more than just the user name or the | |
88 | password (known as the secret). | |
89 | ||
90 | Similarly, the auth-source library supports multiple storage backend, | |
91 | currently either the classic ``netrc'' backend, examples of which you | |
1df7defd | 92 | can see later in this document, or the Secret Service API@. This is |
b8e0f0cd | 93 | done with EIEIO-based backends and you can write your own if you want. |
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94 | |
95 | @node Help for users | |
96 | @chapter Help for users | |
97 | ||
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98 | ``Netrc'' files are a de facto standard. They look like this: |
99 | @example | |
38dc51ba | 100 | machine @var{mymachine} login @var{myloginname} password @var{mypassword} port @var{myport} |
b0b63450 | 101 | @end example |
9eb59592 | 102 | |
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103 | The @code{machine} is the server (either a DNS name or an IP address). |
104 | It's known as @var{:host} in @code{auth-source-search} queries. You | |
105 | can also use @code{host}. | |
106 | ||
107 | The @code{port} is the connection port or protocol. It's known as | |
35123c04 | 108 | @var{:port} in @code{auth-source-search} queries. |
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109 | |
110 | The @code{user} is the user name. It's known as @var{:user} in | |
111 | @code{auth-source-search} queries. You can also use @code{login} and | |
112 | @code{account}. | |
113 | ||
114 | Spaces are always OK as far as auth-source is concerned (but other | |
115 | programs may not like them). Just put the data in quotes, escaping | |
3c93d00f | 116 | quotes as you'd expect with @samp{\}. |
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117 | |
118 | All these are optional. You could just say (but we don't recommend | |
119 | it, we're just showing that it's possible) | |
38dc51ba | 120 | |
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121 | @example |
122 | password @var{mypassword} | |
123 | @end example | |
38dc51ba | 124 | |
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125 | to use the same password everywhere. Again, @emph{DO NOT DO THIS} or |
126 | you will be pwned as the kids say. | |
38dc51ba | 127 | |
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128 | ``Netrc'' files are usually called @file{.authinfo} or @file{.netrc}; |
129 | nowadays @file{.authinfo} seems to be more popular and the auth-source | |
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130 | library encourages this confusion by accepting both, as you'll see |
131 | later. | |
38dc51ba | 132 | |
b8e0f0cd | 133 | If you have problems with the search, set @code{auth-source-debug} to |
733afdf4 | 134 | @code{'trivia} and see what host, port, and user the library is |
3c93d00f | 135 | checking in the @samp{*Messages*} buffer. Ditto for any other |
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136 | problems, your first step is always to see what's being checked. The |
137 | second step, of course, is to write a blog entry about it and wait for | |
138 | the answer in the comments. | |
38dc51ba KY |
139 | |
140 | You can customize the variable @code{auth-sources}. The following may | |
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141 | be needed if you are using an older version of Emacs or if the |
142 | auth-source library is not loaded for some other reason. | |
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143 | |
144 | @lisp | |
b0b63450 | 145 | (require 'auth-source) ;; probably not necessary |
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146 | (customize-variable 'auth-sources) ;; optional, do it once |
147 | @end lisp | |
148 | ||
149 | @defvar auth-sources | |
150 | ||
38dc51ba | 151 | The @code{auth-sources} variable tells the auth-source library where |
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152 | your netrc files or Secret Service API collection items live for a |
153 | particular host and protocol. While you can get fancy, the default | |
154 | and simplest configuration is: | |
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155 | |
156 | @lisp | |
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157 | ;;; old default: required :host and :port, not needed anymore |
158 | (setq auth-sources '((:source "~/.authinfo.gpg" :host t :port t))) | |
bd3e840f KY |
159 | ;;; mostly equivalent (see below about fallbacks) but shorter: |
160 | (setq auth-sources '((:source "~/.authinfo.gpg"))) | |
b8e0f0cd | 161 | ;;; even shorter and the @emph{default}: |
4a3988d5 | 162 | (setq auth-sources '("~/.authinfo.gpg" "~/.authinfo" "~/.netrc")) |
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163 | ;;; use the Secrets API @var{Login} collection (@pxref{Secret Service API}) |
164 | (setq auth-sources '("secrets:Login")) | |
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165 | @end lisp |
166 | ||
38dc51ba | 167 | By adding multiple entries to @code{auth-sources} with a particular |
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168 | host or protocol, you can have specific netrc files for that host or |
169 | protocol. Usually this is unnecessary but may make sense if you have | |
170 | shared netrc files or some other unusual setup (90% of Emacs users | |
171 | have unusual setups and the remaining 10% are @emph{really} unusual). | |
9eb59592 | 172 | |
b8e0f0cd | 173 | Here's a mixed example using two sources: |
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174 | |
175 | @lisp | |
176 | (setq auth-sources '((:source (:secrets default) :host "myserver" :user "joe") | |
b8e0f0cd | 177 | "~/.authinfo.gpg")) |
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178 | @end lisp |
179 | ||
b0b63450 | 180 | @end defvar |
9eb59592 | 181 | |
38dc51ba | 182 | If you don't customize @code{auth-sources}, you'll have to live with |
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183 | the defaults: the unencrypted netrc file @file{~/.authinfo} will be |
184 | used for any host and any port. | |
b8e0f0cd | 185 | |
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186 | If that fails, any host and any port are looked up in the netrc file |
187 | @file{~/.authinfo.gpg}, which is a GnuPG encrypted file (@pxref{GnuPG | |
188 | and EasyPG Assistant Configuration}). | |
189 | ||
190 | Finally, the unencrypted netrc file @file{~/.netrc} will be used for | |
191 | any host and any port. | |
9eb59592 | 192 | |
b8e0f0cd | 193 | The typical netrc line example is without a port. |
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194 | |
195 | @example | |
196 | machine YOURMACHINE login YOU password YOURPASSWORD | |
197 | @end example | |
198 | ||
199 | This will match any authentication port. Simple, right? But what if | |
200 | there's a SMTP server on port 433 of that machine that needs a | |
201 | different password from the IMAP server? | |
202 | ||
203 | @example | |
204 | machine YOURMACHINE login YOU password SMTPPASSWORD port 433 | |
205 | machine YOURMACHINE login YOU password GENERALPASSWORD | |
206 | @end example | |
207 | ||
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208 | For url-auth authentication (HTTP/HTTPS), you need to put this in your |
209 | netrc file: | |
210 | ||
211 | @example | |
212 | machine yourmachine.com:80 port http login testuser password testpass | |
213 | @end example | |
214 | ||
b0b63450 | 215 | This will match any realm and authentication method (basic or digest) |
1df7defd | 216 | over HTTP@. HTTPS is set up similarly. If you want finer controls, |
b0b63450 | 217 | explore the url-auth source code and variables. |
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218 | |
219 | For Tramp authentication, use: | |
220 | ||
221 | @example | |
222 | machine yourmachine.com port scp login testuser password testpass | |
223 | @end example | |
224 | ||
225 | Note that the port denotes the Tramp connection method. When you | |
226 | don't use a port entry, you match any Tramp method, as explained | |
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227 | earlier. Since Tramp has about 88 connection methods, this may be |
228 | necessary if you have an unusual (see earlier comment on those) setup. | |
9eb59592 | 229 | |
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230 | @node Secret Service API |
231 | @chapter Secret Service API | |
232 | ||
0317dd51 MA |
233 | The @dfn{Secret Service API} is a standard from |
234 | @uref{http://www.freedesktop.org/wiki/Specifications/secret-storage-spec,,freedesktop.org} | |
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235 | to securely store passwords and other confidential information. This |
236 | API is implemented by system daemons such as the GNOME Keyring and the | |
237 | KDE Wallet (these are GNOME and KDE packages respectively and should | |
238 | be available on most modern GNU/Linux systems). | |
0317dd51 | 239 | |
ca2c89b6 | 240 | The auth-source library uses the @file{secrets.el} library to connect |
1df7defd | 241 | through the Secret Service API@. You can also use that library in |
ca2c89b6 | 242 | other packages, it's not exclusive to auth-source. |
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243 | |
244 | @defvar secrets-enabled | |
245 | After loading @file{secrets.el}, a non-@code{nil} value of this | |
246 | variable indicates the existence of a daemon providing the Secret | |
247 | Service API. | |
248 | @end defvar | |
249 | ||
250 | @deffn Command secrets-show-secrets | |
ca2c89b6 | 251 | This command shows all collections, items, and their attributes. |
0317dd51 MA |
252 | @end deffn |
253 | ||
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254 | The atomic objects managed by the Secret Service API are @dfn{secret |
255 | items}, which contain things an application wishes to store securely, | |
256 | like a password. Secret items have a label (a name), the @dfn{secret} | |
257 | (which is the string we want, like a password), and a set of lookup | |
258 | attributes. The attributes can be used to search and retrieve a | |
259 | secret item at a later date. | |
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260 | |
261 | Secret items are grouped in @dfn{collections}. A collection is | |
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262 | sometimes called a @samp{keyring} or @samp{wallet} in GNOME Keyring |
263 | and KDE Wallet but it's the same thing, a group of secrets. | |
264 | Collections are personal and protected so only the owner can open them. | |
0317dd51 | 265 | |
c8bf3227 | 266 | The most common collection is called @code{"login"}. |
ca2c89b6 | 267 | |
c8bf3227 | 268 | A collection can have an alias. The alias @code{"default"} is |
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269 | commonly used so the clients don't have to know the specific name of |
270 | the collection they open. Other aliases are not supported yet. | |
c8bf3227 | 271 | Since aliases are globally accessible, set the @code{"default"} alias |
ca2c89b6 | 272 | only when you're sure it's appropriate. |
0317dd51 MA |
273 | |
274 | @defun secrets-list-collections | |
ca2c89b6 | 275 | This function returns all the collection names as a list. |
0317dd51 MA |
276 | @end defun |
277 | ||
278 | @defun secrets-set-alias collection alias | |
279 | Set @var{alias} as alias of collection labeled @var{collection}. | |
c8bf3227 | 280 | Currently only the alias @code{"default"} is supported. |
0317dd51 MA |
281 | @end defun |
282 | ||
283 | @defun secrets-get-alias alias | |
284 | Return the collection name @var{alias} is referencing to. | |
c8bf3227 | 285 | Currently only the alias @code{"default"} is supported. |
0317dd51 MA |
286 | @end defun |
287 | ||
288 | Collections can be created and deleted by the functions | |
289 | @code{secrets-create-collection} and @code{secrets-delete-collection}. | |
ca2c89b6 | 290 | Usually, this is not done from within Emacs. Do not delete standard |
c8bf3227 | 291 | collections such as @code{"login"}. |
ca2c89b6 | 292 | |
c8bf3227 | 293 | The special collection @code{"session"} exists for the lifetime of the |
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294 | corresponding client session (in our case, Emacs's lifetime). It is |
295 | created automatically when Emacs uses the Secret Service interface and | |
296 | it is deleted when Emacs is killed. Therefore, it can be used to | |
c8bf3227 | 297 | store and retrieve secret items temporarily. The @code{"session"} |
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298 | collection is better than a persistent collection when the secret |
299 | items should not live longer than Emacs. The session collection can | |
c8bf3227 | 300 | be specified either by the string @code{"session"}, or by @code{nil}, |
ca2c89b6 | 301 | whenever a collection parameter is needed in the following functions. |
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302 | |
303 | @defun secrets-list-items collection | |
ca2c89b6 | 304 | Returns all the item labels of @var{collection} as a list. |
0317dd51 MA |
305 | @end defun |
306 | ||
307 | @defun secrets-create-item collection item password &rest attributes | |
308 | This function creates a new item in @var{collection} with label | |
aebd5f1a | 309 | @var{item} and password @var{password}. @var{attributes} are |
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310 | key-value pairs set for the created item. The keys are keyword |
311 | symbols, starting with a colon. Example: | |
312 | ||
313 | @example | |
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314 | ;;; The session "session", the label is "my item" |
315 | ;;; and the secret (password) is "geheim" | |
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316 | (secrets-create-item "session" "my item" "geheim" |
317 | :method "sudo" :user "joe" :host "remote-host") | |
318 | @end example | |
319 | @end defun | |
320 | ||
321 | @defun secrets-get-secret collection item | |
322 | Return the secret of item labeled @var{item} in @var{collection}. | |
323 | If there is no such item, return @code{nil}. | |
324 | @end defun | |
325 | ||
326 | @defun secrets-delete-item collection item | |
327 | This function deletes item @var{item} in @var{collection}. | |
328 | @end defun | |
329 | ||
330 | The lookup attributes, which are specified during creation of a | |
331 | secret item, must be a key-value pair. Keys are keyword symbols, | |
332 | starting with a colon; values are strings. They can be retrieved | |
ca2c89b6 | 333 | from a given secret item and they can be used for searching of items. |
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334 | |
335 | @defun secrets-get-attribute collection item attribute | |
336 | Returns the value of key @var{attribute} of item labeled @var{item} in | |
337 | @var{collection}. If there is no such item, or the item doesn't own | |
338 | this key, the function returns @code{nil}. | |
339 | @end defun | |
340 | ||
341 | @defun secrets-get-attributes collection item | |
342 | Return the lookup attributes of item labeled @var{item} in | |
343 | @var{collection}. If there is no such item, or the item has no | |
344 | attributes, it returns @code{nil}. Example: | |
345 | ||
346 | @example | |
347 | (secrets-get-attributes "session" "my item") | |
348 | @result{} ((:user . "joe") (:host ."remote-host")) | |
349 | @end example | |
350 | @end defun | |
351 | ||
352 | @defun secrets-search-items collection &rest attributes | |
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353 | Search for the items in @var{collection} with matching |
354 | @var{attributes}. The @var{attributes} are key-value pairs, as used | |
355 | in @code{secrets-create-item}. Example: | |
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356 | |
357 | @example | |
358 | (secrets-search-items "session" :user "joe") | |
359 | @result{} ("my item" "another item") | |
360 | @end example | |
361 | @end defun | |
bd3e840f | 362 | |
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363 | The auth-source library uses the @file{secrets.el} library and thus |
364 | the Secret Service API when you specify a source matching | |
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365 | @code{"secrets:COLLECTION"}. For instance, you could use |
366 | @code{"secrets:session"} to use the @code{"session"} collection, open only | |
367 | for the lifetime of Emacs. Or you could use @code{"secrets:Login"} to | |
368 | open the @code{"Login"} collection. As a special case, you can use the | |
ca2c89b6 | 369 | symbol @code{default} in @code{auth-sources} (not a string, but a |
c8bf3227 | 370 | symbol) to specify the @code{"default"} alias. Here is a contrived |
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371 | example that sets @code{auth-sources} to search three collections and |
372 | then fall back to @file{~/.authinfo.gpg}. | |
373 | ||
374 | @example | |
375 | (setq auth-sources '(default | |
376 | "secrets:session" | |
377 | "secrets:Login" | |
378 | "~/.authinfo.gpg")) | |
379 | @end example | |
380 | ||
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381 | @node Help for developers |
382 | @chapter Help for developers | |
383 | ||
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384 | The auth-source library lets you control logging output easily. |
385 | ||
386 | @defvar auth-source-debug | |
3c93d00f GM |
387 | Set this variable to @code{'trivia} to see lots of output in |
388 | @samp{*Messages*}, or set it to a function that behaves like | |
389 | @code{message} to do your own logging. | |
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390 | @end defvar |
391 | ||
b8e0f0cd | 392 | The auth-source library only has a few functions for external use. |
9eb59592 | 393 | |
aebd5f1a GM |
394 | @defun auth-source-search &rest spec &key type max host user port secret require create delete &allow-other-keys |
395 | This function searches (or modifies) authentication backends according | |
396 | to @var{spec}. See the function's doc-string for details. | |
397 | @c TODO more details. | |
b8e0f0cd | 398 | @end defun |
9eb59592 | 399 | |
733afdf4 | 400 | Let's take a look at an example of using @code{auth-source-search} |
aebd5f1a | 401 | from Gnus's @code{nnimap.el}. |
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402 | |
403 | @example | |
404 | (defun nnimap-credentials (address ports) | |
405 | (let* ((auth-source-creation-prompts | |
406 | '((user . "IMAP user at %h: ") | |
407 | (secret . "IMAP password for %u@@%h: "))) | |
408 | (found (nth 0 (auth-source-search :max 1 | |
409 | :host address | |
410 | :port ports | |
411 | :require '(:user :secret) | |
412 | :create t)))) | |
413 | (if found | |
414 | (list (plist-get found :user) | |
3107d2a5 KY |
415 | (let ((secret (plist-get found :secret))) |
416 | (if (functionp secret) | |
417 | (funcall secret) | |
418 | secret)) | |
419 | (plist-get found :save-function)) | |
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420 | nil))) |
421 | @end example | |
422 | ||
423 | This call requires the user and password (secret) to be in the | |
424 | results. It also requests that an entry be created if it doesn't | |
425 | exist already. While the created entry is being assembled, the shown | |
426 | prompts will be used to interact with the user. The caller can also | |
427 | pass data in @code{auth-source-creation-defaults} to supply defaults | |
428 | for any of the prompts. | |
429 | ||
430 | Note that the password needs to be evaluated if it's a function. It's | |
431 | wrapped in a function to provide some security. | |
432 | ||
6196cffe | 433 | Later, after a successful login, @code{nnimap.el} calls the |
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434 | @code{:save-function} like so: |
435 | ||
436 | @example | |
437 | (when (functionp (nth 2 credentials)) | |
438 | (funcall (nth 2 credentials))) | |
3107d2a5 | 439 | @end example |
733afdf4 | 440 | |
4248cca2 | 441 | This will work whether the @code{:save-function} was provided or not. |
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442 | @code{:save-function} will be provided only when a new entry was |
443 | created, so this effectively says ``after a successful login, save the | |
444 | authentication information we just used, if it was newly created.'' | |
445 | ||
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446 | After the first time it's called, the @code{:save-function} will not |
447 | run again (but it will log something if you have set | |
448 | @code{auth-source-debug} to @code{'trivia}). This is so it won't ask | |
449 | the same question again, which is annoying. This is so it won't ask | |
450 | the same question again, which is annoying. This is so it won't ask | |
451 | the same question again, which is annoying. | |
452 | ||
453 | So the responsibility of the API user that specified @code{:create t} | |
454 | is to call the @code{:save-function} if it's provided. | |
455 | ||
aebd5f1a GM |
456 | @defun auth-source-delete &rest spec &key delete &allow-other-keys |
457 | This function deletes entries matching @var{spec} from the | |
458 | authentication backends. It returns the entries that were deleted. | |
459 | The backend may not actually delete the entries. | |
b8e0f0cd | 460 | @end defun |
bd3e840f | 461 | |
aebd5f1a GM |
462 | @defun auth-source-forget spec |
463 | This function forgets any cached data that exactly matches @var{spec}. | |
464 | It returns @code{t} if it forget some data, and @code{nil} if no | |
465 | matching data was found. | |
b8e0f0cd G |
466 | @end defun |
467 | ||
aebd5f1a GM |
468 | @defun auth-source-forget+ &rest spec &allow-other-keys |
469 | This function forgets any cached data matching @var{spec}. | |
470 | It returns the number of items forgotten. | |
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471 | @end defun |
472 | ||
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473 | @node GnuPG and EasyPG Assistant Configuration |
474 | @appendix GnuPG and EasyPG Assistant Configuration | |
475 | ||
98e2b864 | 476 | If you don't customize @code{auth-sources}, the auth-source library |
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477 | reads @file{~/.authinfo.gpg}, which is a GnuPG encrypted file. Then |
478 | it will check @file{~/.authinfo} but it's not recommended to use such | |
7ba93e94 | 479 | an unencrypted file. |
98e2b864 | 480 | |
36d3245f | 481 | In Emacs 23 or later there is an option @code{auto-encryption-mode} to |
3c93d00f | 482 | automatically decrypt @file{*.gpg} files. It is enabled by default. |
a1d16a7b | 483 | If you are using earlier versions of Emacs, you will need: |
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484 | |
485 | @lisp | |
486 | (require 'epa-file) | |
487 | (epa-file-enable) | |
488 | @end lisp | |
489 | ||
98e2b864 | 490 | If you want your GnuPG passwords to be cached, set up @code{gpg-agent} |
fe3c5669 | 491 | or EasyPG Assistant |
c56dfd36 | 492 | (@pxref{Caching Passphrases, , Caching Passphrases, epa}). |
36d3245f | 493 | |
98e2b864 | 494 | To quick start, here are some questions: |
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495 | |
496 | @enumerate | |
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497 | @item |
498 | Do you use GnuPG version 2 instead of GnuPG version 1? | |
499 | @item | |
500 | Do you use symmetric encryption rather than public key encryption? | |
501 | @item | |
502 | Do you want to use gpg-agent? | |
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503 | @end enumerate |
504 | ||
505 | Here are configurations depending on your answers: | |
506 | ||
507 | @multitable {111} {222} {333} {configuration configuration configuration} | |
508 | @item @b{1} @tab @b{2} @tab @b{3} @tab Configuration | |
98e2b864 | 509 | @item Yes @tab Yes @tab Yes @tab Set up gpg-agent. |
36d3245f | 510 | @item Yes @tab Yes @tab No @tab You can't, without gpg-agent. |
98e2b864 | 511 | @item Yes @tab No @tab Yes @tab Set up gpg-agent. |
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512 | @item Yes @tab No @tab No @tab You can't, without gpg-agent. |
513 | @item No @tab Yes @tab Yes @tab Set up elisp passphrase cache. | |
514 | @item No @tab Yes @tab No @tab Set up elisp passphrase cache. | |
98e2b864 | 515 | @item No @tab No @tab Yes @tab Set up gpg-agent. |
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516 | @item No @tab No @tab No @tab You can't, without gpg-agent. |
517 | @end multitable | |
518 | ||
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519 | To set up gpg-agent, follow the instruction in GnuPG manual |
520 | (@pxref{Invoking GPG-AGENT, , Invoking GPG-AGENT, gnupg}). | |
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521 | |
522 | To set up elisp passphrase cache, set | |
523 | @code{epa-file-cache-passphrase-for-symmetric-encryption}. | |
524 | ||
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525 | @node Index |
526 | @chapter Index | |
527 | @printindex cp | |
528 | ||
529 | @node Function Index | |
530 | @chapter Function Index | |
531 | @printindex fn | |
532 | ||
533 | @node Variable Index | |
534 | @chapter Variable Index | |
535 | @printindex vr | |
536 | ||
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537 | @bye |
538 | ||
539 | @c End: |