1 ;;; auth-source.el --- authentication sources for Gnus and Emacs
3 ;; Copyright (C) 2008-2016 Free Software Foundation, Inc.
5 ;; Author: Ted Zlatanov <tzz@lifelogs.com>
8 ;; This file is part of GNU Emacs.
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 of the License, or
13 ;; (at your option) any later version.
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.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 ;; This is the auth-source.el package. It lets users tell Gnus how to
26 ;; authenticate in a single place. Simplicity is the goal. Instead
27 ;; of providing 5000 options, we'll stick to simple, easy to
28 ;; understand options.
30 ;; See the auth.info Info documentation for details.
34 ;; - never decode the backend file unless it's necessary
35 ;; - a more generic way to match backends and search backend contents
36 ;; - absorb netrc.el and simplify it
37 ;; - protect passwords better
38 ;; - allow creating and changing netrc lines (not files) e.g. change a password
42 (require 'password-cache)
46 (eval-when-compile (require 'cl))
48 (or (ignore-errors (require 'eieio))
49 ;; gnus-fallback-lib/ from gnus/lisp/gnus-fallback-lib
51 (let ((load-path (cons (expand-file-name
52 "gnus-fallback-lib/eieio"
53 (file-name-directory (locate-library "gnus")))
57 "eieio not found in `load-path' or gnus-fallback-lib/ directory.")))
59 (autoload 'secrets-create-item "secrets")
60 (autoload 'secrets-delete-item "secrets")
61 (autoload 'secrets-get-alias "secrets")
62 (autoload 'secrets-get-attributes "secrets")
63 (autoload 'secrets-get-secret "secrets")
64 (autoload 'secrets-list-collections "secrets")
65 (autoload 'secrets-search-items "secrets")
67 (autoload 'rfc2104-hash "rfc2104")
69 (autoload 'plstore-open "plstore")
70 (autoload 'plstore-find "plstore")
71 (autoload 'plstore-put "plstore")
72 (autoload 'plstore-delete "plstore")
73 (autoload 'plstore-save "plstore")
74 (autoload 'plstore-get-file "plstore")
76 (autoload 'epg-make-context "epg")
77 (autoload 'epg-context-set-passphrase-callback "epg")
78 (autoload 'epg-decrypt-string "epg")
79 (autoload 'epg-encrypt-string "epg")
80 (autoload 'epg-context-set-armor "epg")
82 (autoload 'help-mode "help-mode" nil t)
84 (defvar secrets-enabled)
86 (defgroup auth-source nil
87 "Authentication sources."
88 :version "23.1" ;; No Gnus
92 (defcustom auth-source-cache-expiry 7200
93 "How many seconds passwords are cached, or nil to disable
94 expiring. Overrides `password-cache-expiry' through a
98 :type '(choice (const :tag "Never" nil)
99 (const :tag "All Day" 86400)
100 (const :tag "2 Hours" 7200)
101 (const :tag "30 Minutes" 1800)
102 (integer :tag "Seconds")))
104 ;; The slots below correspond with the `auth-source-search' spec,
105 ;; so a backend with :host set, for instance, would match only
106 ;; searches for that host. Normally they are nil.
107 (defclass auth-source-backend ()
108 ((type :initarg :type
112 :documentation "The backend type.")
113 (source :initarg :source
116 :documentation "The backend source.")
121 :documentation "The backend host.")
126 :documentation "The backend user.")
131 :documentation "The backend protocol.")
134 :documentation "Internal backend data.")
135 (create-function :initarg :create-function
139 :documentation "The create function.")
140 (search-function :initarg :search-function
144 :documentation "The search function.")))
146 (defcustom auth-source-protocols '((imap "imap" "imaps" "143" "993")
147 (pop3 "pop3" "pop" "pop3s" "110" "995")
151 "List of authentication protocols and their names"
154 :version "23.2" ;; No Gnus
155 :type '(repeat :tag "Authentication Protocols"
156 (cons :tag "Protocol Entry"
157 (symbol :tag "Protocol")
159 (string :tag "Name")))))
161 ;; Generate all the protocols in a format Customize can use.
162 ;; TODO: generate on the fly from auth-source-protocols
163 (defconst auth-source-protocols-customize
165 (let ((p (car-safe a)))
167 :tag (upcase (symbol-name p))
169 auth-source-protocols))
171 (defvar auth-source-creation-defaults nil
172 ;; FIXME: AFAICT this is not set (or let-bound) anywhere!
173 "Defaults for creating token values. Usually let-bound.")
175 (defvar auth-source-creation-prompts nil
176 "Default prompts for token values. Usually let-bound.")
178 (make-obsolete 'auth-source-hide-passwords nil "Emacs 24.1")
180 (defcustom auth-source-save-behavior 'ask
181 "If set, auth-source will respect it for save behavior."
183 :version "23.2" ;; No Gnus
185 :tag "auth-source new token save behavior"
186 (const :tag "Always save" t)
187 (const :tag "Never save" nil)
188 (const :tag "Ask" ask)))
190 ;; TODO: make the default (setq auth-source-netrc-use-gpg-tokens `((,(if (boundp 'epa-file-auto-mode-alist-entry) (car epa-file-auto-mode-alist-entry) "\\.gpg\\'") never) (t gpg)))
191 ;; TODO: or maybe leave as (setq auth-source-netrc-use-gpg-tokens 'never)
193 (defcustom auth-source-netrc-use-gpg-tokens 'never
194 "Set this to tell auth-source when to create GPG password
195 tokens in netrc files. It's either an alist or `never'.
196 Note that if EPA/EPG is not available, this should NOT be used."
198 :version "23.2" ;; No Gnus
200 (const :tag "Always use GPG password tokens" (t gpg))
201 (const :tag "Never use GPG password tokens" never)
202 (repeat :tag "Use a lookup list"
204 (choice :tag "Matcher"
205 (const :tag "Match anything" t)
206 (const :tag "The EPA encrypted file extensions"
207 ,(if (boundp 'epa-file-auto-mode-alist-entry)
208 (car epa-file-auto-mode-alist-entry)
210 (regexp :tag "Regular expression"))
211 (choice :tag "What to do"
212 (const :tag "Save GPG-encrypted password tokens" gpg)
213 (const :tag "Don't encrypt tokens" never))))))
215 (defvar auth-source-magic "auth-source-magic ")
217 (defcustom auth-source-do-cache t
218 "Whether auth-source should cache information with `password-cache'."
220 :version "23.2" ;; No Gnus
223 (defcustom auth-source-debug nil
224 "Whether auth-source should log debug messages.
226 If the value is nil, debug messages are not logged.
228 If the value is t, debug messages are logged with `message'. In
229 that case, your authentication data will be in the clear (except
232 If the value is a function, debug messages are logged by calling
233 that function using the same arguments as `message'."
235 :version "23.2" ;; No Gnus
237 :tag "auth-source debugging mode"
238 (const :tag "Log using `message' to the *Messages* buffer" t)
239 (const :tag "Log all trivia with `message' to the *Messages* buffer"
241 (function :tag "Function that takes arguments like `message'")
242 (const :tag "Don't log anything" nil)))
244 (defcustom auth-sources '("~/.authinfo" "~/.authinfo.gpg" "~/.netrc")
245 "List of authentication sources.
246 Each entry is the authentication type with optional properties.
247 Entries are tried in the order in which they appear.
248 See Info node `(auth)Help for users' for details.
250 If an entry names a file with the \".gpg\" extension and you have
251 EPA/EPG set up, the file will be encrypted and decrypted
252 automatically. See Info node `(epa)Encrypting/decrypting gpg files'
255 It's best to customize this with `\\[customize-variable]' because the choices
256 can get pretty complex."
258 :version "24.1" ;; No Gnus
259 :type `(repeat :tag "Authentication Sources"
261 (string :tag "Just a file")
262 (const :tag "Default Secrets API Collection" default)
263 (const :tag "Login Secrets API Collection" "secrets:Login")
264 (const :tag "Temp Secrets API Collection" "secrets:session")
266 (const :tag "Default internet Mac OS Keychain"
267 macos-keychain-internet)
269 (const :tag "Default generic Mac OS Keychain"
270 macos-keychain-generic)
272 (list :tag "Source definition"
273 (const :format "" :value :source)
274 (choice :tag "Authentication backend choice"
275 (string :tag "Authentication Source (file)")
277 :tag "Secret Service API/KWallet/GNOME Keyring"
278 (const :format "" :value :secrets)
279 (choice :tag "Collection to use"
280 (string :tag "Collection name")
281 (const :tag "Default" default)
282 (const :tag "Login" "Login")
284 :tag "Temporary" "session")))
286 :tag "Mac OS internet Keychain"
288 :value :macos-keychain-internet)
289 (choice :tag "Collection to use"
290 (string :tag "internet Keychain path")
291 (const :tag "default" default)))
293 :tag "Mac OS generic Keychain"
295 :value :macos-keychain-generic)
296 (choice :tag "Collection to use"
297 (string :tag "generic Keychain path")
298 (const :tag "default" default))))
299 (repeat :tag "Extra Parameters" :inline t
300 (choice :tag "Extra parameter"
303 (const :format "" :value :host)
304 (choice :tag "Host (machine) choice"
307 :tag "Regular expression")))
310 (const :format "" :value :port)
314 ,@auth-source-protocols-customize))
315 (list :tag "User" :inline t
316 (const :format "" :value :user)
318 :tag "Personality/Username"
323 (defcustom auth-source-gpg-encrypt-to t
324 "List of recipient keys that `authinfo.gpg' encrypted to.
325 If the value is not a list, symmetric encryption will be used."
327 :version "24.1" ;; No Gnus
328 :type '(choice (const :tag "Symmetric encryption" t)
329 (repeat :tag "Recipient public keys"
330 (string :tag "Recipient public key"))))
332 ;; temp for debugging
333 ;; (unintern 'auth-source-protocols)
334 ;; (unintern 'auth-sources)
335 ;; (customize-variable 'auth-sources)
336 ;; (setq auth-sources nil)
337 ;; (format "%S" auth-sources)
338 ;; (customize-variable 'auth-source-protocols)
339 ;; (setq auth-source-protocols nil)
340 ;; (format "%S" auth-source-protocols)
341 ;; (auth-source-pick nil :host "a" :port 'imap)
342 ;; (auth-source-user-or-password "login" "imap.myhost.com" 'imap)
343 ;; (auth-source-user-or-password "password" "imap.myhost.com" 'imap)
344 ;; (auth-source-user-or-password-imap "login" "imap.myhost.com")
345 ;; (auth-source-user-or-password-imap "password" "imap.myhost.com")
346 ;; (auth-source-protocol-defaults 'imap)
348 ;; (let ((auth-source-debug 'debug)) (auth-source-do-debug "hello"))
349 ;; (let ((auth-source-debug t)) (auth-source-do-debug "hello"))
350 ;; (let ((auth-source-debug nil)) (auth-source-do-debug "hello"))
351 (defun auth-source-do-debug (&rest msg)
352 (when auth-source-debug
353 (apply #'auth-source-do-warn msg)))
355 (defun auth-source-do-trivia (&rest msg)
356 (when (or (eq auth-source-debug 'trivia)
357 (functionp auth-source-debug))
358 (apply #'auth-source-do-warn msg)))
360 (defun auth-source-do-warn (&rest msg)
362 ;; set logger to either the function in auth-source-debug or 'message
363 ;; note that it will be 'message if auth-source-debug is nil
364 (if (functionp auth-source-debug)
370 ;; (auth-source-read-char-choice "enter choice? " '(?a ?b ?q))
371 (defun auth-source-read-char-choice (prompt choices)
372 "Read one of CHOICES by `read-char-choice', or `read-char'.
373 `dropdown-list' support is disabled because it doesn't work reliably.
374 Only one of CHOICES will be returned. The PROMPT is augmented
375 with \"[a/b/c] \" if CHOICES is \(?a ?b ?c)."
377 (let* ((prompt-choices
378 (apply #'concat (loop for c in choices
379 collect (format "%c/" c))))
380 (prompt-choices (concat "[" (substring prompt-choices 0 -1) "] "))
381 (full-prompt (concat prompt prompt-choices))
384 (while (not (memq k choices))
386 ((fboundp 'read-char-choice)
387 (read-char-choice full-prompt choices))
388 (t (message "%s" full-prompt)
389 (setq k (read-char))))))
392 ;; (auth-source-pick nil :host "any" :port 'imap :user "joe")
393 ;; (auth-source-pick t :host "any" :port 'imap :user "joe")
394 ;; (setq auth-sources '((:source (:secrets default) :host t :port t :user "joe")
395 ;; (:source (:secrets "session") :host t :port t :user "joe")
396 ;; (:source (:secrets "Login") :host t :port t)
397 ;; (:source "~/.authinfo.gpg" :host t :port t)))
399 ;; (setq auth-sources '((:source (:secrets default) :host t :port t :user "joe")
400 ;; (:source (:secrets "session") :host t :port t :user "joe")
401 ;; (:source (:secrets "Login") :host t :port t)
404 ;; (setq auth-sources '((:source "~/.authinfo.gpg" :host t :port t)))
406 ;; (auth-source-backend-parse "myfile.gpg")
407 ;; (auth-source-backend-parse 'default)
408 ;; (auth-source-backend-parse "secrets:Login")
409 ;; (auth-source-backend-parse 'macos-keychain-internet)
410 ;; (auth-source-backend-parse 'macos-keychain-generic)
411 ;; (auth-source-backend-parse "macos-keychain-internet:/path/here.keychain")
412 ;; (auth-source-backend-parse "macos-keychain-generic:/path/here.keychain")
414 (defun auth-source-backend-parse (entry)
415 "Creates an auth-source-backend from an ENTRY in `auth-sources'."
416 (auth-source-backend-parse-parameters
419 ;; take 'default and recurse to get it as a Secrets API default collection
420 ;; matching any user, host, and protocol
422 (auth-source-backend-parse '(:source (:secrets default))))
423 ;; take secrets:XYZ and recurse to get it as Secrets API collection "XYZ"
424 ;; matching any user, host, and protocol
425 ((and (stringp entry) (string-match "^secrets:\\(.+\\)" entry))
426 (auth-source-backend-parse `(:source (:secrets ,(match-string 1 entry)))))
428 ;; take 'macos-keychain-internet and recurse to get it as a Mac OS
429 ;; Keychain collection matching any user, host, and protocol
430 ((eq entry 'macos-keychain-internet)
431 (auth-source-backend-parse '(:source (:macos-keychain-internet default))))
432 ;; take 'macos-keychain-generic and recurse to get it as a Mac OS
433 ;; Keychain collection matching any user, host, and protocol
434 ((eq entry 'macos-keychain-generic)
435 (auth-source-backend-parse '(:source (:macos-keychain-generic default))))
436 ;; take macos-keychain-internet:XYZ and recurse to get it as MacOS
437 ;; Keychain "XYZ" matching any user, host, and protocol
438 ((and (stringp entry) (string-match "^macos-keychain-internet:\\(.+\\)"
440 (auth-source-backend-parse `(:source (:macos-keychain-internet
441 ,(match-string 1 entry)))))
442 ;; take macos-keychain-generic:XYZ and recurse to get it as MacOS
443 ;; Keychain "XYZ" matching any user, host, and protocol
444 ((and (stringp entry) (string-match "^macos-keychain-generic:\\(.+\\)"
446 (auth-source-backend-parse `(:source (:macos-keychain-generic
447 ,(match-string 1 entry)))))
449 ;; take just a file name and recurse to get it as a netrc file
450 ;; matching any user, host, and protocol
452 (auth-source-backend-parse `(:source ,entry)))
454 ;; a file name with parameters
455 ((stringp (plist-get entry :source))
456 (if (equal (file-name-extension (plist-get entry :source)) "plist")
458 (plist-get entry :source)
459 :source (plist-get entry :source)
461 :search-function #'auth-source-plstore-search
462 :create-function #'auth-source-plstore-create
463 :data (plstore-open (plist-get entry :source)))
465 (plist-get entry :source)
466 :source (plist-get entry :source)
468 :search-function #'auth-source-netrc-search
469 :create-function #'auth-source-netrc-create)))
471 ;; the MacOS Keychain
473 (not (null (plist-get entry :source))) ; the source must not be nil
474 (listp (plist-get entry :source)) ; and it must be a list
476 (plist-get (plist-get entry :source) :macos-keychain-generic)
477 (plist-get (plist-get entry :source) :macos-keychain-internet)))
479 (let* ((source-spec (plist-get entry :source))
480 (keychain-generic (plist-get source-spec :macos-keychain-generic))
481 (keychain-type (if keychain-generic
482 'macos-keychain-generic
483 'macos-keychain-internet))
484 (source (plist-get source-spec (if keychain-generic
485 :macos-keychain-generic
486 :macos-keychain-internet))))
488 (when (symbolp source)
489 (setq source (symbol-name source)))
492 (format "Mac OS Keychain (%s)" source)
495 :search-function #'auth-source-macos-keychain-search
496 :create-function #'auth-source-macos-keychain-create)))
498 ;; the Secrets API. We require the package, in order to have a
499 ;; defined value for `secrets-enabled'.
501 (not (null (plist-get entry :source))) ; the source must not be nil
502 (listp (plist-get entry :source)) ; and it must be a list
503 (require 'secrets nil t) ; and we must load the Secrets API
504 secrets-enabled) ; and that API must be enabled
506 ;; the source is either the :secrets key in ENTRY or
507 ;; if that's missing or nil, it's "session"
508 (let ((source (or (plist-get (plist-get entry :source) :secrets)
511 ;; if the source is a symbol, we look for the alias named so,
512 ;; and if that alias is missing, we use "Login"
513 (when (symbolp source)
514 (setq source (or (secrets-get-alias (symbol-name source))
517 (if (featurep 'secrets)
519 (format "Secrets API (%s)" source)
522 :search-function #'auth-source-secrets-search
523 :create-function #'auth-source-secrets-create)
525 "auth-source-backend-parse: no Secrets API, ignoring spec: %S" entry)
527 (format "Ignored Secrets API (%s)" source)
534 "auth-source-backend-parse: invalid backend spec: %S" entry)
535 (make-instance 'auth-source-backend
539 (defun auth-source-backend-parse-parameters (entry backend)
540 "Fills in the extra auth-source-backend parameters of ENTRY.
541 Using the plist ENTRY, get the :host, :port, and :user search
543 (let ((entry (if (stringp entry)
547 (when (setq val (plist-get entry :host))
548 (oset backend host val))
549 (when (setq val (plist-get entry :user))
550 (oset backend user val))
551 (when (setq val (plist-get entry :port))
552 (oset backend port val)))
555 ;; (mapcar 'auth-source-backend-parse auth-sources)
557 (defun* auth-source-search (&rest spec
559 require create delete
561 "Search or modify authentication backends according to SPEC.
563 This function parses `auth-sources' for matches of the SPEC
564 plist. It can optionally create or update an authentication
565 token if requested. A token is just a standard Emacs property
566 list with a :secret property that can be a function; all the
567 other properties will always hold scalar values.
569 Typically the :secret property, if present, contains a password.
571 Common search keys are :max, :host, :port, and :user. In
572 addition, :create specifies if and how tokens will be created.
573 Finally, :type can specify which backend types you want to check.
575 A string value is always matched literally. A symbol is matched
576 as its string value, literally. All the SPEC values can be
577 single values (symbol or string) or lists thereof (in which case
578 any of the search terms matches).
580 :create t means to create a token if possible.
582 A new token will be created if no matching tokens were found.
583 The new token will have only the keys the backend requires. For
584 the netrc backend, for instance, that's the user, host, and
589 \(let ((auth-source-creation-defaults \\='((user . \"defaultUser\")
590 (A . \"default A\"))))
591 (auth-source-search :host \"mine\" :type \\='netrc :max 1
592 :P \"pppp\" :Q \"qqqq\"
597 \"Search for any entry matching host `mine' in backends of type
598 `netrc', maximum one result.
600 Create a new entry if you found none. The netrc backend will
601 automatically require host, user, and port. The host will be
602 `mine'. We prompt for the user with default `defaultUser' and
603 for the port without a default. We will not prompt for A, Q,
604 or P. The resulting token will only have keys user, host, and
607 :create \\='(A B C) also means to create a token if possible.
609 The behavior is like :create t but if the list contains any
610 parameter, that parameter will be required in the resulting
611 token. The value for that parameter will be obtained from the
612 search parameters or from user input. If any queries are needed,
613 the alist `auth-source-creation-defaults' will be checked for the
614 default value. If the user, host, or port are missing, the alist
615 `auth-source-creation-prompts' will be used to look up the
616 prompts IN THAT ORDER (so the `user' prompt will be queried first,
617 then `host', then `port', and finally `secret'). Each prompt string
618 can use %u, %h, and %p to show the user, host, and port.
622 \(let ((auth-source-creation-defaults \\='((user . \"defaultUser\")
623 (A . \"default A\")))
624 (auth-source-creation-prompts
625 \\='((password . \"Enter IMAP password for %h:%p: \"))))
626 (auth-source-search :host \\='(\"nonesuch\" \"twosuch\") :type \\='netrc :max 1
627 :P \"pppp\" :Q \"qqqq\"
628 :create \\='(A B Q)))
632 \"Search for any entry matching host `nonesuch'
633 or `twosuch' in backends of type `netrc', maximum one result.
635 Create a new entry if you found none. The netrc backend will
636 automatically require host, user, and port. The host will be
637 `nonesuch' and Q will be `qqqq'. We prompt for the password
638 with the shown prompt. We will not prompt for Q. The resulting
639 token will have keys user, host, port, A, B, and Q. It will not
640 have P with any value, even though P is used in the search to
641 find only entries that have P set to `pppp'.\"
643 When multiple values are specified in the search parameter, the
644 user is prompted for which one. So :host (X Y Z) would ask the
645 user to choose between X, Y, and Z.
647 This creation can fail if the search was not specific enough to
648 create a new token (it's up to the backend to decide that). You
649 should `catch' the backend-specific error as usual. Some
650 backends (netrc, at least) will prompt the user rather than throw
653 :require (A B C) means that only results that contain those
654 tokens will be returned. Thus for instance requiring :secret
655 will ensure that any results will actually have a :secret
658 :delete t means to delete any found entries. nil by default.
659 Use `auth-source-delete' in ELisp code instead of calling
660 `auth-source-search' directly with this parameter.
662 :type (X Y Z) will check only those backend types. `netrc' and
663 `secrets' are the only ones supported right now.
665 :max N means to try to return at most N items (defaults to 1).
666 More than N items may be returned, depending on the search and
669 When :max is 0 the function will return just t or nil to indicate
670 if any matches were found.
672 :host (X Y Z) means to match only hosts X, Y, or Z according to
673 the match rules above. Defaults to t.
675 :user (X Y Z) means to match only users X, Y, or Z according to
676 the match rules above. Defaults to t.
678 :port (P Q R) means to match only protocols P, Q, or R.
681 :K (V1 V2 V3) for any other key K will match values V1, V2, or
682 V3 (note the match rules above).
684 The return value is a list with at most :max tokens. Each token
685 is a plist with keys :backend :host :port :user, plus any other
686 keys provided by the backend (notably :secret). But note the
687 exception for :max 0, which see above.
689 The token can hold a :save-function key. If you call that, the
690 user will be prompted to save the data to the backend. You can't
691 request that this should happen right after creation, because
692 `auth-source-search' has no way of knowing if the token is
693 actually useful. So the caller must arrange to call this function.
695 The token's :secret key can hold a function. In that case you
696 must call it to obtain the actual value."
697 (let* ((backends (mapcar #'auth-source-backend-parse auth-sources))
699 (ignored-keys '(:require :create :delete :max))
700 (keys (loop for i below (length spec) by 2
701 unless (memq (nth i spec) ignored-keys)
702 collect (nth i spec)))
703 (cached (auth-source-remembered-p spec))
704 ;; note that we may have cached results but found is still nil
705 ;; (there were no results from the search)
706 (found (auth-source-recall spec))
709 (if (and cached auth-source-do-cache)
710 (auth-source-do-debug
711 "auth-source-search: found %d CACHED results matching %S"
715 (or (eq t create) (listp create)) t
716 "Invalid auth-source :create parameter (must be t or a list): %s %s")
720 "Invalid auth-source :require parameter (must be a list): %s")
722 (setq filtered-backends (copy-sequence backends))
723 (dolist (backend backends)
725 ;; ignore invalid slots
727 (unless (auth-source-search-collection
729 (slot-value backend key))
730 (setq filtered-backends (delq backend filtered-backends))
732 (invalid-slot-name nil))))
734 (auth-source-do-trivia
735 "auth-source-search: found %d backends matching %S"
736 (length filtered-backends) spec)
738 ;; (debug spec "filtered" filtered-backends)
739 ;; First go through all the backends without :create, so we can
741 (setq found (auth-source-search-backends filtered-backends
745 ;; create is always nil here
749 (auth-source-do-debug
750 "auth-source-search: found %d results (max %d) matching %S"
751 (length found) max spec)
753 ;; If we didn't find anything, then we allow the backend(s) to
754 ;; create the entries.
757 (setq found (auth-source-search-backends filtered-backends
763 (auth-source-do-debug
764 "auth-source-search: CREATED %d results (max %d) matching %S"
765 (length found) max spec))
767 ;; note we remember the lack of result too, if it's applicable
768 (when auth-source-do-cache
769 (auth-source-remember spec found)))
775 (defun auth-source-search-backends (backends spec max create delete require)
776 (let ((max (if (zerop max) 1 max)) ; stop with 1 match if we're asked for zero
778 (dolist (backend backends)
779 (when (> max (length matches)) ; if we need more matches...
780 (let* ((bmatches (apply
781 (slot-value backend 'search-function)
783 :type (slot-value backend 'type)
784 ;; note we're overriding whatever the spec
785 ;; has for :max, :require, :create, and :delete
792 (auth-source-do-trivia
793 "auth-source-search-backend: got %d (max %d) in %s:%s matching %S"
794 (length bmatches) max
795 (slot-value backend 'type)
796 (slot-value backend 'source)
798 (setq matches (append matches bmatches))))))
801 ;; (auth-source-search :max 0)
802 ;; (auth-source-search :max 1)
803 ;; (funcall (plist-get (nth 0 (auth-source-search :max 1)) :secret))
804 ;; (auth-source-search :host "nonesuch" :type 'netrc :K 1)
805 ;; (auth-source-search :host "nonesuch" :type 'secrets)
807 (defun auth-source-delete (&rest spec)
808 "Delete entries from the authentication backends according to SPEC.
809 Calls `auth-source-search' with the :delete property in SPEC set to t.
810 The backend may not actually delete the entries.
812 Returns the deleted entries."
813 (auth-source-search (plist-put spec :delete t)))
815 (defun auth-source-search-collection (collection value)
816 "Returns t is VALUE is t or COLLECTION is t or COLLECTION contains VALUE."
817 (when (and (atom collection) (not (eq t collection)))
818 (setq collection (list collection)))
820 ;; (debug :collection collection :value value)
821 (or (eq collection t)
823 (equal collection value)
824 (member value collection)))
826 (defvar auth-source-netrc-cache nil)
828 (defun auth-source-forget-all-cached ()
829 "Forget all cached auth-source data."
831 (loop for sym being the symbols of password-data
832 ;; when the symbol name starts with auth-source-magic
833 when (string-match (concat "^" auth-source-magic)
836 do (password-cache-remove (symbol-name sym)))
837 (setq auth-source-netrc-cache nil))
839 (defun auth-source-format-cache-entry (spec)
840 "Format SPEC entry to put it in the password cache."
841 (concat auth-source-magic (format "%S" spec)))
843 (defun auth-source-remember (spec found)
844 "Remember FOUND search results for SPEC."
845 (let ((password-cache-expiry auth-source-cache-expiry))
847 (auth-source-format-cache-entry spec) found)))
849 (defun auth-source-recall (spec)
850 "Recall FOUND search results for SPEC."
851 (password-read-from-cache (auth-source-format-cache-entry spec)))
853 (defun auth-source-remembered-p (spec)
854 "Check if SPEC is remembered."
856 (auth-source-format-cache-entry spec)))
858 (defun auth-source-forget (spec)
859 "Forget any cached data matching SPEC exactly.
861 This is the same SPEC you passed to `auth-source-search'.
862 Returns t or nil for forgotten or not found."
863 (password-cache-remove (auth-source-format-cache-entry spec)))
865 ;; (loop for sym being the symbols of password-data when (string-match (concat "^" auth-source-magic) (symbol-name sym)) collect (symbol-name sym))
867 ;; (auth-source-remember '(:host "wedd") '(4 5 6))
868 ;; (auth-source-remembered-p '(:host "wedd"))
869 ;; (auth-source-remember '(:host "xedd") '(1 2 3))
870 ;; (auth-source-remembered-p '(:host "xedd"))
871 ;; (auth-source-remembered-p '(:host "zedd"))
872 ;; (auth-source-recall '(:host "xedd"))
873 ;; (auth-source-recall '(:host t))
874 ;; (auth-source-forget+ :host t)
876 (defun auth-source-forget+ (&rest spec)
877 "Forget any cached data matching SPEC. Returns forgotten count.
879 This is not a full `auth-source-search' spec but works similarly.
880 For instance, \(:host \"myhost\" \"yourhost\") would find all the
881 cached data that was found with a search for those two hosts,
882 while \(:host t) would find all host entries."
885 (loop for sym being the symbols of password-data
886 ;; when the symbol name matches with auth-source-magic
887 when (and (setq sname (symbol-name sym))
888 (string-match (concat "^" auth-source-magic "\\(.+\\)")
890 ;; and the spec matches what was stored in the cache
891 (auth-source-specmatchp spec (read (match-string 1 sname))))
894 (password-cache-remove sname)
898 (defun auth-source-specmatchp (spec stored)
899 (let ((keys (loop for i below (length spec) by 2
900 collect (nth i spec))))
903 (unless (auth-source-search-collection (plist-get stored key)
904 (plist-get spec key))
908 ;; (auth-source-pick-first-password :host "z.lifelogs.com")
909 ;; (auth-source-pick-first-password :port "imap")
910 (defun auth-source-pick-first-password (&rest spec)
911 "Pick the first secret found from applying SPEC to `auth-source-search'."
912 (let* ((result (nth 0 (apply #'auth-source-search (plist-put spec :max 1))))
913 (secret (plist-get result :secret)))
915 (if (functionp secret)
919 ;; (auth-source-format-prompt "test %u %h %p" '((?u "user") (?h "host")))
920 (defun auth-source-format-prompt (prompt alist)
921 "Format PROMPT using %x (for any character x) specifiers in ALIST."
923 (let ((c (nth 0 cell))
926 (setq prompt (replace-regexp-in-string (format "%%%c" c)
931 (defun auth-source-ensure-strings (values)
934 (unless (listp values)
935 (setq values (list values)))
936 (mapcar (lambda (value)
942 ;;; Backend specific parsing: netrc/authinfo backend
944 (defun auth-source--aput-1 (alist key val)
947 (while (and (consp rest) (not (equal key (caar rest))))
948 (push (pop rest) seen))
950 (if (null rest) alist
951 (nconc (nreverse seen)
952 (if (equal key (caar rest)) (cdr rest) rest))))))
953 (defmacro auth-source--aput (var key val)
954 `(setq ,var (auth-source--aput-1 ,var ,key ,val)))
956 (defun auth-source--aget (alist key)
957 (cdr (assoc key alist)))
959 ;; (auth-source-netrc-parse :file "~/.authinfo.gpg")
960 (defun* auth-source-netrc-parse (&key file max host user port require
962 "Parse FILE and return a list of all entries in the file.
963 Note that the MAX parameter is used so we can exit the parse early."
965 ;; We got already parsed contents; just return it.
967 (when (file-exists-p file)
968 (setq port (auth-source-ensure-strings port))
970 (let* ((max (or max 5000)) ; sanity check: default to stop at 5K
972 (cached (cdr-safe (assoc file auth-source-netrc-cache)))
973 (cached-mtime (plist-get cached :mtime))
974 (cached-secrets (plist-get cached :secret))
975 (check (lambda(alist)
977 (auth-source-search-collection
980 (auth-source--aget alist "machine")
981 (auth-source--aget alist "host")
983 (auth-source-search-collection
986 (auth-source--aget alist "login")
987 (auth-source--aget alist "account")
988 (auth-source--aget alist "user")
990 (auth-source-search-collection
993 (auth-source--aget alist "port")
994 (auth-source--aget alist "protocol")
997 ;; the required list of keys is nil, or
999 ;; every element of require is in n(ormalized)
1000 (let ((n (nth 0 (auth-source-netrc-normalize
1001 (list alist) file))))
1002 (loop for req in require
1003 always (plist-get n req)))))))
1006 (if (and (functionp cached-secrets)
1008 (nth 5 (file-attributes file))))
1010 (auth-source-do-trivia
1011 "auth-source-netrc-parse: using CACHED file data for %s"
1013 (insert (funcall cached-secrets)))
1014 (insert-file-contents file)
1015 ;; cache all netrc files (used to be just .gpg files)
1016 ;; Store the contents of the file heavily encrypted in memory.
1017 ;; (note for the irony-impaired: they are just obfuscated)
1019 auth-source-netrc-cache file
1020 (list :mtime (nth 5 (file-attributes file))
1021 :secret (lexical-let ((v (mapcar #'1+ (buffer-string))))
1022 (lambda () (apply #'string (mapcar #'1- v)))))))
1023 (goto-char (point-min))
1024 (let ((entries (auth-source-netrc-parse-entries check max))
1026 (while (setq alist (pop entries))
1027 (push (nreverse alist) result)))
1029 (when (< 0 modified)
1030 (when auth-source-gpg-encrypt-to
1031 ;; (see bug#7487) making `epa-file-encrypt-to' local to
1032 ;; this buffer lets epa-file skip the key selection query
1033 ;; (see the `local-variable-p' check in
1034 ;; `epa-file-write-region').
1035 (unless (local-variable-p 'epa-file-encrypt-to (current-buffer))
1036 (make-local-variable 'epa-file-encrypt-to))
1037 (if (listp auth-source-gpg-encrypt-to)
1038 (setq epa-file-encrypt-to auth-source-gpg-encrypt-to)))
1040 ;; ask AFTER we've successfully opened the file
1041 (when (y-or-n-p (format "Save file %s? (%d deletions)"
1043 (write-region (point-min) (point-max) file nil 'silent)
1044 (auth-source-do-debug
1045 "auth-source-netrc-parse: modified %d lines in %s"
1048 (nreverse result))))))
1050 (defun auth-source-netrc-parse-next-interesting ()
1051 "Advance to the next interesting position in the current buffer."
1052 ;; If we're looking at a comment or are at the end of the line, move forward
1053 (while (or (looking-at "#")
1057 (skip-chars-forward "\t "))
1059 (defun auth-source-netrc-parse-one ()
1060 "Read one thing from the current buffer."
1061 (auth-source-netrc-parse-next-interesting)
1063 (when (or (looking-at "'\\([^']*\\)'")
1064 (looking-at "\"\\([^\"]*\\)\"")
1065 (looking-at "\\([^ \t\n]+\\)"))
1066 (forward-char (length (match-string 0)))
1067 (auth-source-netrc-parse-next-interesting)
1068 (match-string-no-properties 1)))
1070 ;; with thanks to org-mode
1071 (defsubst auth-source-current-line (&optional pos)
1073 (and pos (goto-char pos))
1074 ;; works also in narrowed buffer, because we start at 1, not point-min
1075 (+ (if (bolp) 1 0) (count-lines 1 (point)))))
1077 (defun auth-source-netrc-parse-entries(check max)
1078 "Parse up to MAX netrc entries, passed by CHECK, from the current buffer."
1079 (let ((adder (lambda(check alist all)
1082 (> max (length all))
1083 (funcall check alist))
1086 item item2 all alist default)
1087 (while (setq item (auth-source-netrc-parse-one))
1088 (setq default (equal item "default"))
1089 ;; We're starting a new machine. Save the old one.
1092 (equal item "machine")))
1093 ;; (auth-source-do-trivia
1094 ;; "auth-source-netrc-parse-entries: got entry %S" alist)
1095 (setq all (funcall adder check alist all)
1097 ;; In default entries, we don't have a next token.
1098 ;; We store them as ("machine" . t)
1100 (push (cons "machine" t) alist)
1101 ;; Not a default entry. Grab the next item.
1102 (when (setq item2 (auth-source-netrc-parse-one))
1103 ;; Did we get a "machine" value?
1104 (if (equal item2 "machine")
1107 "%s: Unexpected `machine' token at line %d"
1108 "auth-source-netrc-parse-entries"
1109 (auth-source-current-line))
1111 (push (cons item item2) alist)))))
1113 ;; Clean up: if there's an entry left over, use it.
1115 (setq all (funcall adder check alist all))
1116 ;; (auth-source-do-trivia
1117 ;; "auth-source-netrc-parse-entries: got2 entry %S" alist)
1121 (defvar auth-source-passphrase-alist nil)
1123 (defun auth-source-token-passphrase-callback-function (_context _key-id file)
1124 (let* ((file (file-truename file))
1125 (entry (assoc file auth-source-passphrase-alist))
1127 ;; return the saved passphrase, calling a function if needed
1128 (or (copy-sequence (if (functionp (cdr entry))
1129 (funcall (cdr entry))
1133 (setq entry (list file))
1134 (push entry auth-source-passphrase-alist))
1137 (format "Passphrase for %s tokens: " file)
1139 (setcdr entry (lexical-let ((p (copy-sequence passphrase)))
1143 ;; (auth-source-epa-extract-gpg-token "gpg:LS0tLS1CRUdJTiBQR1AgTUVTU0FHRS0tLS0tClZlcnNpb246IEdudVBHIHYxLjQuMTEgKEdOVS9MaW51eCkKCmpBMEVBd01DT25qMjB1ak9rZnRneVI3K21iNm9aZWhuLzRad3cySkdlbnVaKzRpeEswWDY5di9icDI1U1dsQT0KPS9yc2wKLS0tLS1FTkQgUEdQIE1FU1NBR0UtLS0tLQo=" "~/.netrc")
1144 (defun auth-source-epa-extract-gpg-token (secret file)
1145 "Pass either the decoded SECRET or the gpg:BASE64DATA version.
1146 FILE is the file from which we obtained this token."
1147 (when (string-match "^gpg:\\(.+\\)" secret)
1148 (setq secret (base64-decode-string (match-string 1 secret))))
1149 (let ((context (epg-make-context 'OpenPGP)))
1150 (epg-context-set-passphrase-callback
1152 (cons #'auth-source-token-passphrase-callback-function
1154 (epg-decrypt-string context secret)))
1156 (defvar pp-escape-newlines)
1158 ;; (insert (auth-source-epa-make-gpg-token "mysecret" "~/.netrc"))
1159 (defun auth-source-epa-make-gpg-token (secret file)
1160 (let ((context (epg-make-context 'OpenPGP))
1161 (pp-escape-newlines nil)
1163 (epg-context-set-armor context t)
1164 (epg-context-set-passphrase-callback
1166 (cons #'auth-source-token-passphrase-callback-function
1168 (setq cipher (epg-encrypt-string context secret nil))
1171 (base64-encode-region (point-min) (point-max) t)
1172 (concat "gpg:" (buffer-substring-no-properties
1176 (defun auto-source--symbol-keyword (symbol)
1177 (intern (format ":%s" symbol)))
1179 (defun auth-source-netrc-normalize (alist filename)
1180 (mapcar (lambda (entry)
1182 (while (setq item (pop entry))
1183 (let ((k (car item))
1186 ;; apply key aliases
1187 (setq k (cond ((member k '("machine")) "host")
1188 ((member k '("login" "account")) "user")
1189 ((member k '("protocol")) "port")
1190 ((member k '("password")) "secret")
1193 ;; send back the secret in a function (lexical binding)
1194 (when (equal k "secret")
1195 (setq v (lexical-let ((lexv v)
1196 (token-decoder nil))
1197 (when (string-match "^gpg:" lexv)
1198 ;; it's a GPG token: create a token decoder
1199 ;; which unsets itself once
1203 (auth-source-epa-extract-gpg-token
1206 (setq token-decoder nil)))))
1209 (setq lexv (funcall token-decoder lexv)))
1211 (setq ret (plist-put ret
1212 (auto-source--symbol-keyword k)
1217 ;; (setq secret (plist-get (nth 0 (auth-source-search :host t :type 'netrc :K 1 :max 1)) :secret))
1220 (defun* auth-source-netrc-search (&rest
1222 &key backend require create
1223 type max host user port
1225 "Given a property list SPEC, return search matches from the :backend.
1226 See `auth-source-search' for details on SPEC."
1227 ;; just in case, check that the type is correct (null or same as the backend)
1228 (assert (or (null type) (eq type (oref backend type)))
1229 t "Invalid netrc search: %s %s")
1231 (let ((results (auth-source-netrc-normalize
1232 (auth-source-netrc-parse
1235 :file (oref backend source)
1239 (oref backend source))))
1241 ;; if we need to create an entry AND none were found to match
1245 ;; create based on the spec and record the value
1247 ;; if the user did not want to create the entry
1248 ;; in the file, it will be returned
1249 (apply (slot-value backend 'create-function) spec)
1250 ;; if not, we do the search again without :create
1251 ;; to get the updated data.
1253 ;; the result will be returned, even if the search fails
1254 (apply #'auth-source-netrc-search
1255 (plist-put spec :create nil)))))
1258 (defun auth-source-netrc-element-or-first (v)
1263 ;; (auth-source-search :host "nonesuch" :type 'netrc :max 1 :create t)
1264 ;; (auth-source-search :host "nonesuch" :type 'netrc :max 1 :create t :create-extra-keys '((A "default A") (B)))
1266 (defun* auth-source-netrc-create (&rest spec
1270 (let* ((base-required '(host user port secret))
1271 ;; we know (because of an assertion in auth-source-search) that the
1272 ;; :create parameter is either t or a list (which includes nil)
1273 (create-extra (if (eq t create) nil create))
1274 (current-data (car (auth-source-search :max 1
1277 (required (append base-required create-extra))
1278 (file (oref backend source))
1280 ;; `valist' is an alist
1282 ;; `artificial' will be returned if no creation is needed
1285 ;; only for base required elements (defined as function parameters):
1286 ;; fill in the valist with whatever data we may have from the search
1287 ;; we complete the first value if it's a list and use the value otherwise
1288 (dolist (br base-required)
1289 (let ((val (plist-get spec (auto-source--symbol-keyword br))))
1291 (let ((br-choice (cond
1292 ;; all-accepting choice (predicate is t)
1294 ;; just the value otherwise
1297 (auth-source--aput valist br br-choice))))))
1299 ;; for extra required elements, see if the spec includes a value for them
1300 (dolist (er create-extra)
1301 (let ((k (auto-source--symbol-keyword er))
1302 (keys (loop for i below (length spec) by 2
1303 collect (nth i spec))))
1305 (auth-source--aput valist er (plist-get spec k)))))
1307 ;; for each required element
1308 (dolist (r required)
1309 (let* ((data (auth-source--aget valist r))
1310 ;; take the first element if the data is a list
1311 (data (or (auth-source-netrc-element-or-first data)
1312 (plist-get current-data
1313 (auto-source--symbol-keyword r))))
1314 ;; this is the default to be offered
1315 (given-default (auth-source--aget
1316 auth-source-creation-defaults r))
1317 ;; the default supplementals are simple:
1318 ;; for the user, try `given-default' and then (user-login-name);
1319 ;; otherwise take `given-default'
1321 ((and (not given-default) (eq r 'user))
1324 (printable-defaults (list
1327 (auth-source-netrc-element-or-first
1328 (auth-source--aget valist 'user))
1329 (plist-get artificial :user)
1333 (auth-source-netrc-element-or-first
1334 (auth-source--aget valist 'host))
1335 (plist-get artificial :host)
1339 (auth-source-netrc-element-or-first
1340 (auth-source--aget valist 'port))
1341 (plist-get artificial :port)
1343 (prompt (or (auth-source--aget auth-source-creation-prompts r)
1345 (secret "%p password for %u@%h: ")
1346 (user "%p user name for %h: ")
1347 (host "%p host name for user %u: ")
1348 (port "%p port for %u@%h: "))
1349 (format "Enter %s (%%u@%%h:%%p): " r)))
1350 (prompt (auth-source-format-prompt
1352 `((?u ,(auth-source--aget printable-defaults 'user))
1353 (?h ,(auth-source--aget printable-defaults 'host))
1354 (?p ,(auth-source--aget printable-defaults 'port))))))
1356 ;; Store the data, prompting for the password if needed.
1359 ;; Special case prompt for passwords.
1360 ;; TODO: make the default (setq auth-source-netrc-use-gpg-tokens `((,(if (boundp 'epa-file-auto-mode-alist-entry) (car epa-file-auto-mode-alist-entry) "\\.gpg\\'") nil) (t gpg)))
1361 ;; TODO: or maybe leave as (setq auth-source-netrc-use-gpg-tokens 'never)
1362 (let* ((ep (format "Use GPG password tokens in %s?" file))
1365 ((eq auth-source-netrc-use-gpg-tokens 'never)
1367 ((listp auth-source-netrc-use-gpg-tokens)
1368 (let ((check (copy-sequence
1369 auth-source-netrc-use-gpg-tokens))
1372 (setq item (pop check))
1373 (when (or (eq (car item) t)
1374 (string-match (car item) file))
1375 (setq ret (cdr item))
1377 ;; FIXME: `ret' unused.
1378 ;; Should we return it here?
1381 (plain (or (eval default) (read-passwd prompt))))
1382 ;; ask if we don't know what to do (in which case
1383 ;; auth-source-netrc-use-gpg-tokens must be a list)
1385 (setq gpg-encrypt (if (y-or-n-p ep) 'gpg 'never))
1386 ;; TODO: save the defcustom now? or ask?
1387 (setq auth-source-netrc-use-gpg-tokens
1388 (cons `(,file ,gpg-encrypt)
1389 auth-source-netrc-use-gpg-tokens)))
1390 (if (eq gpg-encrypt 'gpg)
1391 (auth-source-epa-make-gpg-token plain file)
1393 (if (stringp default)
1394 (read-string (if (string-match ": *\\'" prompt)
1395 (concat (substring prompt 0 (match-beginning 0))
1396 " (default " default "): ")
1397 (concat prompt "(default " default ") "))
1402 (setq artificial (plist-put artificial
1403 (auto-source--symbol-keyword r)
1405 (lexical-let ((data data))
1409 ;; When r is not an empty string...
1410 (when (and (stringp data)
1411 (< 0 (length data)))
1412 ;; this function is not strictly necessary but I think it
1413 ;; makes the code clearer -tzz
1414 (let ((printer (lambda ()
1415 ;; append the key (the symbol name of r)
1416 ;; and the value in r
1419 (if (zerop (length add)) "" " ")
1420 ;; remap auth-source tokens to netrc
1425 (port "port") ; redundant but clearer
1426 (t (symbol-name r)))
1427 (if (string-match "[\"# ]" data)
1430 (setq add (concat add (funcall printer)))))))
1435 (lexical-let ((file file)
1437 (lambda () (auth-source-netrc-saver file add))))
1441 ;;(funcall (plist-get (nth 0 (auth-source-search :host '("nonesuch2") :user "tzz" :port "imap" :create t :max 1)) :save-function))
1442 (defun auth-source-netrc-saver (file add)
1443 "Save a line ADD in FILE, prompting along the way.
1444 Respects `auth-source-save-behavior'. Uses
1445 `auth-source-netrc-cache' to avoid prompting more than once."
1446 (let* ((key (format "%s %s" file (rfc2104-hash 'md5 64 16 file add)))
1447 (cached (assoc key auth-source-netrc-cache)))
1450 (auth-source-do-trivia
1451 "auth-source-netrc-saver: found previous run for key %s, returning"
1454 (when (file-exists-p file)
1455 (insert-file-contents file))
1456 (when auth-source-gpg-encrypt-to
1457 ;; (see bug#7487) making `epa-file-encrypt-to' local to
1458 ;; this buffer lets epa-file skip the key selection query
1459 ;; (see the `local-variable-p' check in
1460 ;; `epa-file-write-region').
1461 (unless (local-variable-p 'epa-file-encrypt-to (current-buffer))
1462 (make-local-variable 'epa-file-encrypt-to))
1463 (if (listp auth-source-gpg-encrypt-to)
1464 (setq epa-file-encrypt-to auth-source-gpg-encrypt-to)))
1465 ;; we want the new data to be found first, so insert at beginning
1466 (goto-char (point-min))
1468 ;; Ask AFTER we've successfully opened the file.
1469 (let ((prompt (format "Save auth info to file %s? " file))
1470 (done (not (eq auth-source-save-behavior 'ask)))
1471 (bufname "*auth-source Help*")
1474 (setq k (auth-source-read-char-choice prompt '(?y ?n ?N ?e ??)))
1478 (with-output-to-temp-buffer bufname
1480 (concat "(y)es, save\n"
1481 "(n)o but use the info\n"
1482 "(N)o and don't ask to save again\n"
1484 "(?) for help as you can see.\n"))
1485 ;; Why? Doesn't with-output-to-temp-buffer already do
1486 ;; the exact same thing anyway? --Stef
1487 (set-buffer standard-output)
1494 (customize-save-variable 'auth-source-save-behavior nil))
1495 (?e (setq add (read-string "Line to add: " add)))
1498 (when (get-buffer-window bufname)
1499 (delete-window (get-buffer-window bufname)))
1501 ;; Make sure the info is not saved.
1502 (when (null auth-source-save-behavior)
1505 (when (< 0 (length add))
1510 (write-region (point-min) (point-max) file nil 'silent)
1511 ;; Make the .authinfo file non-world-readable.
1512 (set-file-modes file #o600)
1513 (auth-source-do-debug
1514 "auth-source-netrc-create: wrote 1 new line to %s"
1516 (message "Saved new authentication information to %s" file)
1518 (auth-source--aput auth-source-netrc-cache key "ran"))))
1520 ;;; Backend specific parsing: Secrets API backend
1522 ;; (let ((auth-sources '(default))) (auth-source-search :max 1 :create t))
1523 ;; (let ((auth-sources '(default))) (auth-source-search :max 1 :delete t))
1524 ;; (let ((auth-sources '(default))) (auth-source-search :max 1))
1525 ;; (let ((auth-sources '(default))) (auth-source-search))
1526 ;; (let ((auth-sources '("secrets:Login"))) (auth-source-search :max 1))
1527 ;; (let ((auth-sources '("secrets:Login"))) (auth-source-search :max 1 :signon_realm "https://git.gnus.org/Git"))
1529 (defun auth-source-secrets-listify-pattern (pattern)
1530 "Convert a pattern with lists to a list of string patterns.
1532 auth-source patterns can have values of the form :foo (\"bar\"
1533 \"qux\"), which means to match any secret with :foo equal to
1534 \"bar\" or :foo equal to \"qux\". The secrets backend supports
1535 only string values for patterns, so this routine returns a list
1536 of patterns that is equivalent to the single original pattern
1537 when interpreted such that if a secret matches any pattern in the
1538 list, it matches the original pattern."
1541 (let* ((key (pop pattern))
1542 (value (pop pattern))
1543 (tails (auth-source-secrets-listify-pattern pattern))
1544 (heads (if (stringp value)
1545 (list (list key value))
1546 (mapcar (lambda (v) (list key v)) value))))
1552 collect (append h tl))))))
1554 (defun* auth-source-secrets-search (&rest
1556 &key backend create delete label max
1558 "Search the Secrets API; spec is like `auth-source'.
1560 The :label key specifies the item's label. It is the only key
1561 that can specify a substring. Any :label value besides a string
1562 will allow any label.
1564 All other search keys must match exactly. If you need substring
1565 matching, do a wider search and narrow it down yourself.
1567 You'll get back all the properties of the token as a plist.
1569 Here's an example that looks for the first item in the `Login'
1572 (let ((auth-sources \\='(\"secrets:Login\")))
1573 (auth-source-search :max 1)
1575 Here's another that looks for the first item in the `Login'
1576 Secrets collection whose label contains `gnus':
1578 (let ((auth-sources \\='(\"secrets:Login\")))
1579 (auth-source-search :max 1 :label \"gnus\")
1581 And this one looks for the first item in the `Login' Secrets
1582 collection that's a Google Chrome entry for the git.gnus.org site
1583 authentication tokens:
1585 (let ((auth-sources \\='(\"secrets:Login\")))
1586 (auth-source-search :max 1 :signon_realm \"https://git.gnus.org/Git\"))
1590 (assert (not create) nil
1591 "The Secrets API auth-source backend doesn't support creation yet")
1593 ;; (secrets-delete-item coll elt)
1594 (assert (not delete) nil
1595 "The Secrets API auth-source backend doesn't support deletion yet")
1597 (let* ((coll (oref backend source))
1598 (max (or max 5000)) ; sanity check: default to stop at 5K
1599 (ignored-keys '(:create :delete :max :backend :label :require :type))
1600 (search-keys (loop for i below (length spec) by 2
1601 unless (memq (nth i spec) ignored-keys)
1602 collect (nth i spec)))
1603 ;; build a search spec without the ignored keys
1604 ;; if a search key is nil or t (match anything), we skip it
1605 (search-specs (auth-source-secrets-listify-pattern
1606 (apply #'append (mapcar
1608 (if (or (null (plist-get spec k))
1609 (eq t (plist-get spec k)))
1611 (list k (plist-get spec k))))
1613 ;; needed keys (always including host, login, port, and secret)
1614 (returned-keys (mm-delete-duplicates (append
1615 '(:host :login :port :secret)
1618 (loop for search-spec in search-specs
1620 (loop for item in (apply #'secrets-search-items coll search-spec)
1621 unless (and (stringp label)
1622 (not (string-match label item)))
1624 ;; TODO: respect max in `secrets-search-items', not after the fact
1625 (items (butlast items (- (length items) max)))
1626 ;; convert the item name to a full plist
1627 (items (mapcar (lambda (item)
1629 ;; make an entry for the secret (password) element
1632 (lexical-let ((v (secrets-get-secret coll item)))
1634 ;; rewrite the entry from ((k1 v1) (k2 v2)) to plist
1636 (mapcar (lambda (entry)
1637 (list (car entry) (cdr entry)))
1638 (secrets-get-attributes coll item)))))
1640 ;; ensure each item has each key in `returned-keys'
1641 (items (mapcar (lambda (plist)
1644 (mapcar (lambda (req)
1645 (if (plist-get plist req)
1653 (defun auth-source-secrets-create (&rest spec)
1655 ;; (apply 'secrets-create-item (auth-get-source entry) name passwd spec)
1658 ;;; Backend specific parsing: Mac OS Keychain (using /usr/bin/security) backend
1660 ;; (let ((auth-sources '(macos-keychain-internet))) (auth-source-search :max 1 :create t))
1661 ;; (let ((auth-sources '(macos-keychain-internet))) (auth-source-search :max 1 :delete t))
1662 ;; (let ((auth-sources '(macos-keychain-internet))) (auth-source-search :max 1))
1663 ;; (let ((auth-sources '(macos-keychain-internet))) (auth-source-search))
1665 ;; (let ((auth-sources '(macos-keychain-generic))) (auth-source-search :max 1 :create t))
1666 ;; (let ((auth-sources '(macos-keychain-generic))) (auth-source-search :max 1 :delete t))
1667 ;; (let ((auth-sources '(macos-keychain-generic))) (auth-source-search :max 1))
1668 ;; (let ((auth-sources '(macos-keychain-generic))) (auth-source-search))
1670 ;; (let ((auth-sources '("macos-keychain-internet:/Users/tzz/Library/Keychains/login.keychain"))) (auth-source-search :max 1))
1671 ;; (let ((auth-sources '("macos-keychain-generic:Login"))) (auth-source-search :max 1 :host "git.gnus.org"))
1672 ;; (let ((auth-sources '("macos-keychain-generic:Login"))) (auth-source-search :max 1))
1674 (defun* auth-source-macos-keychain-search (&rest
1676 &key backend create delete
1679 "Search the MacOS Keychain; spec is like `auth-source'.
1681 All search keys must match exactly. If you need substring
1682 matching, do a wider search and narrow it down yourself.
1684 You'll get back all the properties of the token as a plist.
1686 The :type key is either `macos-keychain-internet' or
1687 `macos-keychain-generic'.
1689 For the internet keychain type, the :label key searches the
1690 item's labels (\"-l LABEL\" passed to \"/usr/bin/security\").
1691 Similarly, :host maps to \"-s HOST\", :user maps to \"-a USER\",
1692 and :port maps to \"-P PORT\" or \"-r PROT\"
1693 \(note PROT has to be a 4-character string).
1695 For the generic keychain type, the :label key searches the item's
1696 labels (\"-l LABEL\" passed to \"/usr/bin/security\").
1697 Similarly, :host maps to \"-c HOST\" (the \"creator\" keychain
1698 field), :user maps to \"-a USER\", and :port maps to \"-s PORT\".
1700 Here's an example that looks for the first item in the default
1701 generic MacOS Keychain:
1703 (let ((auth-sources \\='(macos-keychain-generic)))
1704 (auth-source-search :max 1)
1706 Here's another that looks for the first item in the internet
1707 MacOS Keychain collection whose label is `gnus':
1709 (let ((auth-sources \\='(macos-keychain-internet)))
1710 (auth-source-search :max 1 :label \"gnus\")
1712 And this one looks for the first item in the internet keychain
1713 entries for git.gnus.org:
1715 (let ((auth-sources \\='(macos-keychain-internet\")))
1716 (auth-source-search :max 1 :host \"git.gnus.org\"))
1719 (assert (not create) nil
1720 "The MacOS Keychain auth-source backend doesn't support creation yet")
1722 ;; (macos-keychain-delete-item coll elt)
1723 (assert (not delete) nil
1724 "The MacOS Keychain auth-source backend doesn't support deletion yet")
1726 (let* ((coll (oref backend source))
1727 (max (or max 5000)) ; sanity check: default to stop at 5K
1728 (ignored-keys '(:create :delete :max :backend :label))
1729 (search-keys (loop for i below (length spec) by 2
1730 unless (memq (nth i spec) ignored-keys)
1731 collect (nth i spec)))
1732 ;; build a search spec without the ignored keys
1733 ;; if a search key is nil or t (match anything), we skip it
1734 (search-spec (apply #'append (mapcar
1736 (if (or (null (plist-get spec k))
1737 (eq t (plist-get spec k)))
1739 (list k (plist-get spec k))))
1741 ;; needed keys (always including host, login, port, and secret)
1742 (returned-keys (mm-delete-duplicates (append
1743 '(:host :login :port :secret)
1745 (items (apply #'auth-source-macos-keychain-search-items
1751 ;; ensure each item has each key in `returned-keys'
1752 (items (mapcar (lambda (plist)
1755 (mapcar (lambda (req)
1756 (if (plist-get plist req)
1764 (defun* auth-source-macos-keychain-search-items (coll _type _max
1769 (let* ((keychain-generic (eq type 'macos-keychain-generic))
1770 (args `(,(if keychain-generic
1771 "find-generic-password"
1772 "find-internet-password")
1774 (ret (list :type type)))
1776 (setq args (append args (list "-l" label))))
1778 (setq args (append args (list (if keychain-generic "-c" "-s") host))))
1780 (setq args (append args (list "-a" user))))
1783 (if keychain-generic
1784 (setq args (append args (list "-s" port)))
1785 (setq args (append args (list
1786 (if (string-match "[0-9]+" port) "-P" "-r")
1789 (unless (equal coll "default")
1790 (setq args (append args (list coll))))
1793 (apply #'call-process "/usr/bin/security" nil t nil args)
1794 (goto-char (point-min))
1797 ((looking-at "^password: \"\\(.+\\)\"$")
1798 (setq ret (auth-source-macos-keychain-result-append
1802 (lexical-let ((v (match-string 1)))
1804 ;; TODO: check if this is really the label
1805 ;; match 0x00000007 <blob>="AppleID"
1806 ((looking-at "^[ ]+0x00000007 <blob>=\"\\(.+\\)\"")
1807 (setq ret (auth-source-macos-keychain-result-append
1812 ;; match "crtr"<uint32>="aapl"
1813 ;; match "svce"<blob>="AppleID"
1814 ((looking-at "^[ ]+\"\\([a-z]+\\)\"[^=]+=\"\\(.+\\)\"")
1815 (setq ret (auth-source-macos-keychain-result-append
1819 (match-string 2)))))
1821 ;; return `ret' iff it has the :secret key
1822 (and (plist-get ret :secret) (list ret))))
1824 (defun auth-source-macos-keychain-result-append (result generic k v)
1826 (push (auto-source--symbol-keyword
1828 ((equal k "acct") "user")
1829 ;; for generic keychains, creator is host, service is port
1830 ((and generic (equal k "crtr")) "host")
1831 ((and generic (equal k "svce")) "port")
1832 ;; for internet keychains, protocol is port, server is host
1833 ((and (not generic) (equal k "ptcl")) "port")
1834 ((and (not generic) (equal k "srvr")) "host")
1838 (defun auth-source-macos-keychain-create (&rest spec)
1842 ;;; Backend specific parsing: PLSTORE backend
1844 (defun* auth-source-plstore-search (&rest
1846 &key backend create delete
1849 "Search the PLSTORE; spec is like `auth-source'."
1850 (let* ((store (oref backend data))
1851 (max (or max 5000)) ; sanity check: default to stop at 5K
1852 (ignored-keys '(:create :delete :max :backend :label :require :type))
1853 (search-keys (loop for i below (length spec) by 2
1854 unless (memq (nth i spec) ignored-keys)
1855 collect (nth i spec)))
1856 ;; build a search spec without the ignored keys
1857 ;; if a search key is nil or t (match anything), we skip it
1858 (search-spec (apply #'append (mapcar
1860 (let ((v (plist-get spec k)))
1868 ;; needed keys (always including host, login, port, and secret)
1869 (returned-keys (mm-delete-duplicates (append
1870 '(:host :login :port :secret)
1872 (items (plstore-find store search-spec))
1873 (item-names (mapcar #'car items))
1874 (items (butlast items (- (length items) max)))
1875 ;; convert the item to a full plist
1876 (items (mapcar (lambda (item)
1877 (let* ((plist (copy-tree (cdr item)))
1878 (secret (plist-member plist :secret)))
1882 (lexical-let ((v (car (cdr secret))))
1886 ;; ensure each item has each key in `returned-keys'
1887 (items (mapcar (lambda (plist)
1890 (mapcar (lambda (req)
1891 (if (plist-get plist req)
1898 ;; if we need to create an entry AND none were found to match
1902 ;; create based on the spec and record the value
1904 ;; if the user did not want to create the entry
1905 ;; in the file, it will be returned
1906 (apply (slot-value backend 'create-function) spec)
1907 ;; if not, we do the search again without :create
1908 ;; to get the updated data.
1910 ;; the result will be returned, even if the search fails
1911 (apply #'auth-source-plstore-search
1912 (plist-put spec :create nil)))))
1915 (dolist (item-name item-names)
1916 (plstore-delete store item-name))
1917 (plstore-save store)))
1920 (defun* auth-source-plstore-create (&rest spec
1924 (let* ((base-required '(host user port secret))
1925 (base-secret '(secret))
1926 ;; we know (because of an assertion in auth-source-search) that the
1927 ;; :create parameter is either t or a list (which includes nil)
1928 (create-extra (if (eq t create) nil create))
1929 (current-data (car (auth-source-search :max 1
1932 (required (append base-required create-extra))
1933 ;; `valist' is an alist
1935 ;; `artificial' will be returned if no creation is needed
1939 ;; only for base required elements (defined as function parameters):
1940 ;; fill in the valist with whatever data we may have from the search
1941 ;; we complete the first value if it's a list and use the value otherwise
1942 (dolist (br base-required)
1943 (let ((val (plist-get spec (auto-source--symbol-keyword br))))
1945 (let ((br-choice (cond
1946 ;; all-accepting choice (predicate is t)
1948 ;; just the value otherwise
1951 (auth-source--aput valist br br-choice))))))
1953 ;; for extra required elements, see if the spec includes a value for them
1954 (dolist (er create-extra)
1955 (let ((k (auto-source--symbol-keyword er))
1956 (keys (loop for i below (length spec) by 2
1957 collect (nth i spec))))
1959 (auth-source--aput valist er (plist-get spec k)))))
1961 ;; for each required element
1962 (dolist (r required)
1963 (let* ((data (auth-source--aget valist r))
1964 ;; take the first element if the data is a list
1965 (data (or (auth-source-netrc-element-or-first data)
1966 (plist-get current-data
1967 (auto-source--symbol-keyword r))))
1968 ;; this is the default to be offered
1969 (given-default (auth-source--aget
1970 auth-source-creation-defaults r))
1971 ;; the default supplementals are simple:
1972 ;; for the user, try `given-default' and then (user-login-name);
1973 ;; otherwise take `given-default'
1975 ((and (not given-default) (eq r 'user))
1978 (printable-defaults (list
1981 (auth-source-netrc-element-or-first
1982 (auth-source--aget valist 'user))
1983 (plist-get artificial :user)
1987 (auth-source-netrc-element-or-first
1988 (auth-source--aget valist 'host))
1989 (plist-get artificial :host)
1993 (auth-source-netrc-element-or-first
1994 (auth-source--aget valist 'port))
1995 (plist-get artificial :port)
1997 (prompt (or (auth-source--aget auth-source-creation-prompts r)
1999 (secret "%p password for %u@%h: ")
2000 (user "%p user name for %h: ")
2001 (host "%p host name for user %u: ")
2002 (port "%p port for %u@%h: "))
2003 (format "Enter %s (%%u@%%h:%%p): " r)))
2004 (prompt (auth-source-format-prompt
2006 `((?u ,(auth-source--aget printable-defaults 'user))
2007 (?h ,(auth-source--aget printable-defaults 'host))
2008 (?p ,(auth-source--aget printable-defaults 'port))))))
2010 ;; Store the data, prompting for the password if needed.
2013 (or (eval default) (read-passwd prompt))
2014 (if (stringp default)
2016 (if (string-match ": *\\'" prompt)
2017 (concat (substring prompt 0 (match-beginning 0))
2018 " (default " default "): ")
2019 (concat prompt "(default " default ") "))
2024 (if (member r base-secret)
2025 (setq secret-artificial
2026 (plist-put secret-artificial
2027 (auto-source--symbol-keyword r)
2029 (setq artificial (plist-put artificial
2030 (auto-source--symbol-keyword r)
2032 (plstore-put (oref backend data)
2033 (sha1 (format "%s@%s:%s"
2034 (plist-get artificial :user)
2035 (plist-get artificial :host)
2036 (plist-get artificial :port)))
2037 artificial secret-artificial)
2038 (if (y-or-n-p (format "Save auth info to file %s? "
2039 (plstore-get-file (oref backend data))))
2040 (plstore-save (oref backend data)))))
2044 ;; (auth-source-user-or-password '("login" "password") "imap.myhost.com" t "tzz")
2046 ;; deprecate the old interface
2047 (make-obsolete 'auth-source-user-or-password
2048 'auth-source-search "Emacs 24.1")
2049 (make-obsolete 'auth-source-forget-user-or-password
2050 'auth-source-forget "Emacs 24.1")
2052 (defun auth-source-user-or-password
2053 (mode host port &optional username create-missing delete-existing)
2054 "Find MODE (string or list of strings) matching HOST and PORT.
2056 DEPRECATED in favor of `auth-source-search'!
2058 USERNAME is optional and will be used as \"login\" in a search
2059 across the Secret Service API (see secrets.el) if the resulting
2060 items don't have a username. This means that if you search for
2061 username \"joe\" and it matches an item but the item doesn't have
2062 a :user attribute, the username \"joe\" will be returned.
2064 A non nil DELETE-EXISTING means deleting any matching password
2065 entry in the respective sources. This is useful only when
2066 CREATE-MISSING is non nil as well; the intended use case is to
2067 remove wrong password entries.
2069 If no matching entry is found, and CREATE-MISSING is non nil,
2070 the password will be retrieved interactively, and it will be
2071 stored in the password database which matches best (see
2074 MODE can be \"login\" or \"password\"."
2075 (auth-source-do-debug
2076 "auth-source-user-or-password: DEPRECATED get %s for %s (%s) + user=%s"
2077 mode host port username)
2079 (let* ((listy (listp mode))
2080 (mode (if listy mode (list mode)))
2081 ;; (cname (if username
2082 ;; (format "%s %s:%s %s" mode host port username)
2083 ;; (format "%s %s:%s" mode host port)))
2084 (search (list :host host :port port))
2085 (search (if username (append search (list :user username)) search))
2086 (search (if create-missing
2087 (append search (list :create t))
2089 (search (if delete-existing
2090 (append search (list :delete t))
2092 ;; (found (if (not delete-existing)
2093 ;; (gethash cname auth-source-cache)
2094 ;; (remhash cname auth-source-cache)
2099 (auth-source-do-debug
2100 "auth-source-user-or-password: DEPRECATED cached %s=%s for %s (%s) + %s"
2102 ;; don't show the password
2103 (if (and (member "password" mode) t)
2107 found) ; return the found data
2108 ;; else, if not found, search with a max of 1
2109 (let ((choice (nth 0 (apply #'auth-source-search
2110 (append '(:max 1) search)))))
2114 ((equal "password" m)
2115 (push (if (plist-get choice :secret)
2116 (funcall (plist-get choice :secret))
2119 (push (plist-get choice :user) found)))))
2120 (setq found (nreverse found))
2121 (setq found (if listy found (car-safe found)))))
2125 (defun auth-source-user-and-password (host &optional user)
2126 (let* ((auth-info (car
2130 :user "yourusername"
2132 :require '(:user :secret)
2137 :require '(:user :secret)
2139 (user (plist-get auth-info :user))
2140 (password (plist-get auth-info :secret)))
2141 (when (functionp password)
2142 (setq password (funcall password)))
2143 (list user password auth-info)))
2145 (provide 'auth-source)
2147 ;;; auth-source.el ends here