1 ;;; auth-source.el --- authentication sources for Gnus and Emacs -*- lexical-binding: t -*-
3 ;; Copyright (C) 2008-2017 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 <https://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
)
44 (eval-when-compile (require 'cl-lib
))
47 (autoload 'secrets-create-item
"secrets")
48 (autoload 'secrets-delete-item
"secrets")
49 (autoload 'secrets-get-alias
"secrets")
50 (autoload 'secrets-get-attributes
"secrets")
51 (autoload 'secrets-get-secret
"secrets")
52 (autoload 'secrets-list-collections
"secrets")
53 (autoload 'secrets-search-items
"secrets")
55 (autoload 'rfc2104-hash
"rfc2104")
57 (autoload 'plstore-open
"plstore")
58 (autoload 'plstore-find
"plstore")
59 (autoload 'plstore-put
"plstore")
60 (autoload 'plstore-delete
"plstore")
61 (autoload 'plstore-save
"plstore")
62 (autoload 'plstore-get-file
"plstore")
64 (eval-when-compile (require 'epg
)) ;; setf-method for `epg-context-armor'
65 (autoload 'epg-make-context
"epg")
66 (autoload 'epg-context-set-passphrase-callback
"epg")
67 (autoload 'epg-decrypt-string
"epg")
68 (autoload 'epg-encrypt-string
"epg")
70 (autoload 'help-mode
"help-mode" nil t
)
72 (defvar secrets-enabled
)
74 (defgroup auth-source nil
75 "Authentication sources."
76 :version
"23.1" ;; No Gnus
80 (defcustom auth-source-cache-expiry
7200
81 "How many seconds passwords are cached, or nil to disable
82 expiring. Overrides `password-cache-expiry' through a
86 :type
'(choice (const :tag
"Never" nil
)
87 (const :tag
"All Day" 86400)
88 (const :tag
"2 Hours" 7200)
89 (const :tag
"30 Minutes" 1800)
90 (integer :tag
"Seconds")))
92 ;; The slots below correspond with the `auth-source-search' spec,
93 ;; so a backend with :host set, for instance, would match only
94 ;; searches for that host. Normally they are nil.
95 (defclass auth-source-backend
()
100 :documentation
"The backend type.")
101 (source :initarg
:source
104 :documentation
"The backend source.")
109 :documentation
"The backend host.")
114 :documentation
"The backend user.")
119 :documentation
"The backend protocol.")
122 :documentation
"Internal backend data.")
123 (create-function :initarg
:create-function
127 :documentation
"The create function.")
128 (search-function :initarg
:search-function
132 :documentation
"The search function.")))
134 (defcustom auth-source-protocols
'((imap "imap" "imaps" "143" "993")
135 (pop3 "pop3" "pop" "pop3s" "110" "995")
139 "List of authentication protocols and their names"
142 :version
"23.2" ;; No Gnus
143 :type
'(repeat :tag
"Authentication Protocols"
144 (cons :tag
"Protocol Entry"
145 (symbol :tag
"Protocol")
147 (string :tag
"Name")))))
149 ;; Generate all the protocols in a format Customize can use.
150 ;; TODO: generate on the fly from auth-source-protocols
151 (defconst auth-source-protocols-customize
153 (let ((p (car-safe a
)))
155 :tag
(upcase (symbol-name p
))
157 auth-source-protocols
))
159 (defvar auth-source-creation-defaults nil
160 ;; FIXME: AFAICT this is not set (or let-bound) anywhere!
161 "Defaults for creating token values. Usually let-bound.")
163 (defvar auth-source-creation-prompts nil
164 "Default prompts for token values. Usually let-bound.")
166 (make-obsolete 'auth-source-hide-passwords nil
"Emacs 24.1")
168 (defcustom auth-source-save-behavior
'ask
169 "If set, auth-source will respect it for save behavior."
171 :version
"23.2" ;; No Gnus
173 :tag
"auth-source new token save behavior"
174 (const :tag
"Always save" t
)
175 (const :tag
"Never save" nil
)
176 (const :tag
"Ask" ask
)))
178 ;; 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)))
179 ;; TODO: or maybe leave as (setq auth-source-netrc-use-gpg-tokens 'never)
181 (defcustom auth-source-netrc-use-gpg-tokens
'never
182 "Set this to tell auth-source when to create GPG password
183 tokens in netrc files. It's either an alist or `never'.
184 Note that if EPA/EPG is not available, this should NOT be used."
186 :version
"23.2" ;; No Gnus
188 (const :tag
"Always use GPG password tokens" (t gpg
))
189 (const :tag
"Never use GPG password tokens" never
)
190 (repeat :tag
"Use a lookup list"
192 (choice :tag
"Matcher"
193 (const :tag
"Match anything" t
)
194 (const :tag
"The EPA encrypted file extensions"
195 ,(if (boundp 'epa-file-auto-mode-alist-entry
)
196 (car epa-file-auto-mode-alist-entry
)
198 (regexp :tag
"Regular expression"))
199 (choice :tag
"What to do"
200 (const :tag
"Save GPG-encrypted password tokens" gpg
)
201 (const :tag
"Don't encrypt tokens" never
))))))
203 (defcustom auth-source-do-cache t
204 "Whether auth-source should cache information with `password-cache'."
206 :version
"23.2" ;; No Gnus
209 (defcustom auth-source-debug nil
210 "Whether auth-source should log debug messages.
212 If the value is nil, debug messages are not logged.
214 If the value is t, debug messages are logged with `message'. In
215 that case, your authentication data will be in the clear (except
218 If the value is a function, debug messages are logged by calling
219 that function using the same arguments as `message'."
221 :version
"23.2" ;; No Gnus
223 :tag
"auth-source debugging mode"
224 (const :tag
"Log using `message' to the *Messages* buffer" t
)
225 (const :tag
"Log all trivia with `message' to the *Messages* buffer"
227 (function :tag
"Function that takes arguments like `message'")
228 (const :tag
"Don't log anything" nil
)))
230 (defcustom auth-sources
'("~/.authinfo" "~/.authinfo.gpg" "~/.netrc")
231 "List of authentication sources.
232 Each entry is the authentication type with optional properties.
233 Entries are tried in the order in which they appear.
234 See Info node `(auth)Help for users' for details.
236 If an entry names a file with the \".gpg\" extension and you have
237 EPA/EPG set up, the file will be encrypted and decrypted
238 automatically. See Info node `(epa)Encrypting/decrypting gpg files'
241 It's best to customize this with `\\[customize-variable]' because the choices
242 can get pretty complex."
244 :version
"24.1" ;; No Gnus
245 :type
`(repeat :tag
"Authentication Sources"
247 (string :tag
"Just a file")
248 (const :tag
"Default Secrets API Collection" default
)
249 (const :tag
"Login Secrets API Collection" "secrets:Login")
250 (const :tag
"Temp Secrets API Collection" "secrets:session")
252 (const :tag
"Default internet Mac OS Keychain"
253 macos-keychain-internet
)
255 (const :tag
"Default generic Mac OS Keychain"
256 macos-keychain-generic
)
258 (list :tag
"Source definition"
259 (const :format
"" :value
:source
)
260 (choice :tag
"Authentication backend choice"
261 (string :tag
"Authentication Source (file)")
263 :tag
"Secret Service API/KWallet/GNOME Keyring"
264 (const :format
"" :value
:secrets
)
265 (choice :tag
"Collection to use"
266 (string :tag
"Collection name")
267 (const :tag
"Default" default
)
268 (const :tag
"Login" "Login")
270 :tag
"Temporary" "session")))
272 :tag
"Mac OS internet Keychain"
274 :value
:macos-keychain-internet
)
275 (choice :tag
"Collection to use"
276 (string :tag
"internet Keychain path")
277 (const :tag
"default" default
)))
279 :tag
"Mac OS generic Keychain"
281 :value
:macos-keychain-generic
)
282 (choice :tag
"Collection to use"
283 (string :tag
"generic Keychain path")
284 (const :tag
"default" default
))))
285 (repeat :tag
"Extra Parameters" :inline t
286 (choice :tag
"Extra parameter"
289 (const :format
"" :value
:host
)
290 (choice :tag
"Host (machine) choice"
293 :tag
"Regular expression")))
296 (const :format
"" :value
:port
)
300 ,@auth-source-protocols-customize
))
301 (list :tag
"User" :inline t
302 (const :format
"" :value
:user
)
304 :tag
"Personality/Username"
309 (defcustom auth-source-gpg-encrypt-to t
310 "List of recipient keys that `authinfo.gpg' encrypted to.
311 If the value is not a list, symmetric encryption will be used."
313 :version
"24.1" ;; No Gnus
314 :type
'(choice (const :tag
"Symmetric encryption" t
)
315 (repeat :tag
"Recipient public keys"
316 (string :tag
"Recipient public key"))))
318 (defun auth-source-do-debug (&rest msg
)
319 (when auth-source-debug
320 (apply #'auth-source-do-warn msg
)))
322 (defun auth-source-do-trivia (&rest msg
)
323 (when (or (eq auth-source-debug
'trivia
)
324 (functionp auth-source-debug
))
325 (apply #'auth-source-do-warn msg
)))
327 (defun auth-source-do-warn (&rest msg
)
329 ;; set logger to either the function in auth-source-debug or 'message
330 ;; note that it will be 'message if auth-source-debug is nil
331 (if (functionp auth-source-debug
)
336 (defun auth-source-read-char-choice (prompt choices
)
337 "Read one of CHOICES by `read-char-choice', or `read-char'.
338 `dropdown-list' support is disabled because it doesn't work reliably.
339 Only one of CHOICES will be returned. The PROMPT is augmented
340 with \"[a/b/c] \" if CHOICES is \(?a ?b ?c)."
342 (let* ((prompt-choices
344 (cl-loop for c in choices collect
(format "%c/" c
))))
345 (prompt-choices (concat "[" (substring prompt-choices
0 -
1) "] "))
346 (full-prompt (concat prompt prompt-choices
))
349 (while (not (memq k choices
))
350 (setq k
(read-char-choice full-prompt choices
)))
353 (defvar auth-source-backend-parser-functions nil
354 "List of auth-source parser functions.
355 Each function takes an entry from `auth-sources' as parameter and
356 returns a backend or nil if the entry is not supported. Add a
357 parser function to this list with `add-hook'. Searching for a
358 backend starts with the first element on the list and stops as
359 soon as a function returns non-nil.")
361 (defun auth-source-backend-parse (entry)
362 "Create an auth-source-backend from an ENTRY in `auth-sources'."
365 (cl-dolist (f auth-source-backend-parser-functions
)
366 (when (setq backend
(funcall f entry
))
370 ;; none of the parsers worked
372 "auth-source-backend-parse: invalid backend spec: %S" entry
)
373 (setq backend
(make-instance 'auth-source-backend
376 (auth-source-backend-parse-parameters entry backend
)))
378 (defun auth-source-backends-parser-file (entry)
379 ;; take just a file name use it as a netrc/plist file
380 ;; matching any user, host, and protocol
381 (when (stringp entry
)
382 (setq entry
`(:source
,entry
)))
384 ;; a file name with parameters
385 ((stringp (plist-get entry
:source
))
386 (if (equal (file-name-extension (plist-get entry
:source
)) "plist")
388 (plist-get entry
:source
)
389 :source
(plist-get entry
:source
)
391 :search-function
#'auth-source-plstore-search
392 :create-function
#'auth-source-plstore-create
393 :data
(plstore-open (plist-get entry
:source
)))
395 (plist-get entry
:source
)
396 :source
(plist-get entry
:source
)
398 :search-function
#'auth-source-netrc-search
399 :create-function
#'auth-source-netrc-create
)))))
401 ;; Note this function should be last in the parser functions, so we add it first
402 (add-hook 'auth-source-backend-parser-functions
'auth-source-backends-parser-file
)
404 (defun auth-source-backends-parser-macos-keychain (entry)
405 ;; take macos-keychain-{internet,generic}:XYZ and use it as macOS
406 ;; Keychain "XYZ" matching any user, host, and protocol
407 (when (and (stringp entry
) (string-match "^macos-keychain-internet:\\(.+\\)"
409 (setq entry
`(:source
(:macos-keychain-internet
410 ,(match-string 1 entry
)))))
411 (when (and (stringp entry
) (string-match "^macos-keychain-generic:\\(.+\\)"
413 (setq entry
`(:source
(:macos-keychain-generic
414 ,(match-string 1 entry
)))))
415 ;; take 'macos-keychain-internet or generic and use it as a Mac OS
416 ;; Keychain collection matching any user, host, and protocol
417 (when (eq entry
'macos-keychain-internet
)
418 (setq entry
'(:source
(:macos-keychain-internet default
))))
419 (when (eq entry
'macos-keychain-generic
)
420 (setq entry
'(:source
(:macos-keychain-generic default
))))
422 ;; the macOS Keychain
424 (not (null (plist-get entry
:source
))) ; the source must not be nil
425 (listp (plist-get entry
:source
)) ; and it must be a list
427 (plist-get (plist-get entry
:source
) :macos-keychain-generic
)
428 (plist-get (plist-get entry
:source
) :macos-keychain-internet
)))
430 (let* ((source-spec (plist-get entry
:source
))
431 (keychain-generic (plist-get source-spec
:macos-keychain-generic
))
432 (keychain-type (if keychain-generic
433 'macos-keychain-generic
434 'macos-keychain-internet
))
435 (source (plist-get source-spec
(if keychain-generic
436 :macos-keychain-generic
437 :macos-keychain-internet
))))
439 (when (symbolp source
)
440 (setq source
(symbol-name source
)))
443 (format "Mac OS Keychain (%s)" source
)
446 :search-function
#'auth-source-macos-keychain-search
447 :create-function
#'auth-source-macos-keychain-create
)))))
449 (add-hook 'auth-source-backend-parser-functions
'auth-source-backends-parser-macos-keychain
)
451 (defun auth-source-backends-parser-secrets (entry)
452 ;; take secrets:XYZ and use it as Secrets API collection "XYZ"
453 ;; matching any user, host, and protocol
454 (when (and (stringp entry
) (string-match "^secrets:\\(.+\\)" entry
))
455 (setq entry
`(:source
(:secrets
,(match-string 1 entry
)))))
456 ;; take 'default and use it as a Secrets API default collection
457 ;; matching any user, host, and protocol
458 (when (eq entry
'default
)
459 (setq entry
'(:source
(:secrets default
))))
461 ;; the Secrets API. We require the package, in order to have a
462 ;; defined value for `secrets-enabled'.
464 (not (null (plist-get entry
:source
))) ; the source must not be nil
465 (listp (plist-get entry
:source
)) ; and it must be a list
466 (not (null (plist-get
467 (plist-get entry
:source
)
468 :secrets
))) ; the source must have :secrets
469 (require 'secrets nil t
) ; and we must load the Secrets API
470 secrets-enabled
) ; and that API must be enabled
472 ;; the source is either the :secrets key in ENTRY or
473 ;; if that's missing or nil, it's "session"
474 (let ((source (plist-get (plist-get entry
:source
) :secrets
)))
476 ;; if the source is a symbol, we look for the alias named so,
477 ;; and if that alias is missing, we use "Login"
478 (when (symbolp source
)
479 (setq source
(or (secrets-get-alias (symbol-name source
))
482 (if (featurep 'secrets
)
484 (format "Secrets API (%s)" source
)
487 :search-function
#'auth-source-secrets-search
488 :create-function
#'auth-source-secrets-create
)
490 "auth-source-backend-parse: no Secrets API, ignoring spec: %S" entry
)
492 (format "Ignored Secrets API (%s)" source
)
496 (add-hook 'auth-source-backend-parser-functions
'auth-source-backends-parser-secrets
)
498 (defun auth-source-backend-parse-parameters (entry backend
)
499 "Fills in the extra auth-source-backend parameters of ENTRY.
500 Using the plist ENTRY, get the :host, :port, and :user search
502 (let ((entry (if (stringp entry
)
506 (when (setq val
(plist-get entry
:host
))
507 (oset backend host val
))
508 (when (setq val
(plist-get entry
:user
))
509 (oset backend user val
))
510 (when (setq val
(plist-get entry
:port
))
511 (oset backend port val
)))
514 ;; (mapcar 'auth-source-backend-parse auth-sources)
516 (cl-defun auth-source-search (&rest spec
517 &key max require create delete
519 "Search or modify authentication backends according to SPEC.
521 This function parses `auth-sources' for matches of the SPEC
522 plist. It can optionally create or update an authentication
523 token if requested. A token is just a standard Emacs property
524 list with a :secret property that can be a function; all the
525 other properties will always hold scalar values.
527 Typically the :secret property, if present, contains a password.
529 Common search keys are :max, :host, :port, and :user. In
530 addition, :create specifies if and how tokens will be created.
531 Finally, :type can specify which backend types you want to check.
533 A string value is always matched literally. A symbol is matched
534 as its string value, literally. All the SPEC values can be
535 single values (symbol or string) or lists thereof (in which case
536 any of the search terms matches).
538 :create t means to create a token if possible.
540 A new token will be created if no matching tokens were found.
541 The new token will have only the keys the backend requires. For
542 the netrc backend, for instance, that's the user, host, and
547 \(let ((auth-source-creation-defaults \\='((user . \"defaultUser\")
548 (A . \"default A\"))))
549 (auth-source-search :host \"mine\" :type \\='netrc :max 1
550 :P \"pppp\" :Q \"qqqq\"
555 \"Search for any entry matching host `mine' in backends of type
556 `netrc', maximum one result.
558 Create a new entry if you found none. The netrc backend will
559 automatically require host, user, and port. The host will be
560 `mine'. We prompt for the user with default `defaultUser' and
561 for the port without a default. We will not prompt for A, Q,
562 or P. The resulting token will only have keys user, host, and
565 :create \\='(A B C) also means to create a token if possible.
567 The behavior is like :create t but if the list contains any
568 parameter, that parameter will be required in the resulting
569 token. The value for that parameter will be obtained from the
570 search parameters or from user input. If any queries are needed,
571 the alist `auth-source-creation-defaults' will be checked for the
572 default value. If the user, host, or port are missing, the alist
573 `auth-source-creation-prompts' will be used to look up the
574 prompts IN THAT ORDER (so the `user' prompt will be queried first,
575 then `host', then `port', and finally `secret'). Each prompt string
576 can use %u, %h, and %p to show the user, host, and port.
580 \(let ((auth-source-creation-defaults \\='((user . \"defaultUser\")
581 (A . \"default A\")))
582 (auth-source-creation-prompts
583 \\='((password . \"Enter IMAP password for %h:%p: \"))))
584 (auth-source-search :host \\='(\"nonesuch\" \"twosuch\") :type \\='netrc :max 1
585 :P \"pppp\" :Q \"qqqq\"
586 :create \\='(A B Q)))
590 \"Search for any entry matching host `nonesuch'
591 or `twosuch' in backends of type `netrc', maximum one result.
593 Create a new entry if you found none. The netrc backend will
594 automatically require host, user, and port. The host will be
595 `nonesuch' and Q will be `qqqq'. We prompt for the password
596 with the shown prompt. We will not prompt for Q. The resulting
597 token will have keys user, host, port, A, B, and Q. It will not
598 have P with any value, even though P is used in the search to
599 find only entries that have P set to `pppp'.\"
601 When multiple values are specified in the search parameter, the
602 user is prompted for which one. So :host (X Y Z) would ask the
603 user to choose between X, Y, and Z.
605 This creation can fail if the search was not specific enough to
606 create a new token (it's up to the backend to decide that). You
607 should `catch' the backend-specific error as usual. Some
608 backends (netrc, at least) will prompt the user rather than throw
611 :require (A B C) means that only results that contain those
612 tokens will be returned. Thus for instance requiring :secret
613 will ensure that any results will actually have a :secret
616 :delete t means to delete any found entries. nil by default.
617 Use `auth-source-delete' in ELisp code instead of calling
618 `auth-source-search' directly with this parameter.
620 :type (X Y Z) will check only those backend types. `netrc' and
621 `secrets' are the only ones supported right now.
623 :max N means to try to return at most N items (defaults to 1).
624 More than N items may be returned, depending on the search and
627 When :max is 0 the function will return just t or nil to indicate
628 if any matches were found.
630 :host (X Y Z) means to match only hosts X, Y, or Z according to
631 the match rules above. Defaults to t.
633 :user (X Y Z) means to match only users X, Y, or Z according to
634 the match rules above. Defaults to t.
636 :port (P Q R) means to match only protocols P, Q, or R.
639 :K (V1 V2 V3) for any other key K will match values V1, V2, or
640 V3 (note the match rules above).
642 The return value is a list with at most :max tokens. Each token
643 is a plist with keys :backend :host :port :user, plus any other
644 keys provided by the backend (notably :secret). But note the
645 exception for :max 0, which see above.
647 The token can hold a :save-function key. If you call that, the
648 user will be prompted to save the data to the backend. You can't
649 request that this should happen right after creation, because
650 `auth-source-search' has no way of knowing if the token is
651 actually useful. So the caller must arrange to call this function.
653 The token's :secret key can hold a function. In that case you
654 must call it to obtain the actual value."
655 (let* ((backends (mapcar #'auth-source-backend-parse auth-sources
))
657 (ignored-keys '(:require
:create
:delete
:max
))
658 (keys (cl-loop for i below
(length spec
) by
2
659 unless
(memq (nth i spec
) ignored-keys
)
660 collect
(nth i spec
)))
661 (cached (auth-source-remembered-p spec
))
662 ;; note that we may have cached results but found is still nil
663 ;; (there were no results from the search)
664 (found (auth-source-recall spec
))
667 (if (and cached auth-source-do-cache
)
668 (auth-source-do-debug
669 "auth-source-search: found %d CACHED results matching %S"
673 (or (eq t create
) (listp create
)) t
674 "Invalid auth-source :create parameter (must be t or a list): %s %s")
678 "Invalid auth-source :require parameter (must be a list): %s")
680 (setq filtered-backends
(copy-sequence backends
))
681 (dolist (backend backends
)
682 (cl-dolist (key keys
)
683 ;; ignore invalid slots
685 (unless (auth-source-search-collection
687 (slot-value backend key
))
688 (setq filtered-backends
(delq backend filtered-backends
))
690 (invalid-slot-name nil
))))
692 (auth-source-do-trivia
693 "auth-source-search: found %d backends matching %S"
694 (length filtered-backends
) spec
)
696 ;; (debug spec "filtered" filtered-backends)
697 ;; First go through all the backends without :create, so we can
699 (setq found
(auth-source-search-backends filtered-backends
703 ;; create is always nil here
707 (auth-source-do-debug
708 "auth-source-search: found %d results (max %d) matching %S"
709 (length found
) max spec
)
711 ;; If we didn't find anything, then we allow the backend(s) to
712 ;; create the entries.
715 (setq found
(auth-source-search-backends filtered-backends
721 (auth-source-do-debug
722 "auth-source-search: CREATED %d results (max %d) matching %S"
723 (length found
) max spec
))
725 ;; note we remember the lack of result too, if it's applicable
726 (when auth-source-do-cache
727 (auth-source-remember spec found
)))
733 (defun auth-source-search-backends (backends spec max create delete require
)
734 (let ((max (if (zerop max
) 1 max
)) ; stop with 1 match if we're asked for zero
736 (dolist (backend backends
)
737 (when (> max
(length matches
)) ; if we need more matches...
738 (let* ((bmatches (apply
739 (slot-value backend
'search-function
)
741 :type
(slot-value backend
'type
)
742 ;; note we're overriding whatever the spec
743 ;; has for :max, :require, :create, and :delete
750 (auth-source-do-trivia
751 "auth-source-search-backend: got %d (max %d) in %s:%s matching %S"
752 (length bmatches
) max
753 (slot-value backend
'type
)
754 (slot-value backend
'source
)
756 (setq matches
(append matches bmatches
))))))
759 (defun auth-source-delete (&rest spec
)
760 "Delete entries from the authentication backends according to SPEC.
761 Calls `auth-source-search' with the :delete property in SPEC set to t.
762 The backend may not actually delete the entries.
764 Returns the deleted entries."
765 (auth-source-search (plist-put spec
:delete t
)))
767 (defun auth-source-search-collection (collection value
)
768 "Returns t is VALUE is t or COLLECTION is t or COLLECTION contains VALUE."
769 (when (and (atom collection
) (not (eq t collection
)))
770 (setq collection
(list collection
)))
772 ;; (debug :collection collection :value value)
773 (or (eq collection t
)
775 (equal collection value
)
776 (member value collection
)))
778 (defvar auth-source-netrc-cache nil
)
780 (defun auth-source-forget-all-cached ()
781 "Forget all cached auth-source data."
783 (maphash (lambda (key _password
)
784 (when (eq 'auth-source
(car-safe key
))
786 (password-cache-remove key
)))
788 (setq auth-source-netrc-cache nil
))
790 (defun auth-source-format-cache-entry (spec)
791 "Format SPEC entry to put it in the password cache."
792 `(auth-source .
,spec
))
794 (defun auth-source-remember (spec found
)
795 "Remember FOUND search results for SPEC."
796 (let ((password-cache-expiry auth-source-cache-expiry
))
798 (auth-source-format-cache-entry spec
) found
)))
800 (defun auth-source-recall (spec)
801 "Recall FOUND search results for SPEC."
802 (password-read-from-cache (auth-source-format-cache-entry spec
)))
804 (defun auth-source-remembered-p (spec)
805 "Check if SPEC is remembered."
807 (auth-source-format-cache-entry spec
)))
809 (defun auth-source-forget (spec)
810 "Forget any cached data matching SPEC exactly.
812 This is the same SPEC you passed to `auth-source-search'.
813 Returns t or nil for forgotten or not found."
814 (password-cache-remove (auth-source-format-cache-entry spec
)))
816 (defun auth-source-forget+ (&rest spec
)
817 "Forget any cached data matching SPEC. Returns forgotten count.
819 This is not a full `auth-source-search' spec but works similarly.
820 For instance, \(:host \"myhost\" \"yourhost\") would find all the
821 cached data that was found with a search for those two hosts,
822 while \(:host t) would find all host entries."
825 (lambda (key _password
)
826 (when (and (eq 'auth-source
(car-safe key
))
827 ;; and the spec matches what was stored in the cache
828 (auth-source-specmatchp spec
(cdr key
)))
830 (password-cache-remove key
)
835 (defun auth-source-specmatchp (spec stored
)
836 (let ((keys (cl-loop for i below
(length spec
) by
2
837 collect
(nth i spec
))))
839 (cl-dolist (key keys
)
840 (unless (auth-source-search-collection (plist-get stored key
)
841 (plist-get spec key
))
845 (defun auth-source-pick-first-password (&rest spec
)
846 "Pick the first secret found from applying SPEC to `auth-source-search'."
847 (let* ((result (nth 0 (apply #'auth-source-search
(plist-put spec
:max
1))))
848 (secret (plist-get result
:secret
)))
850 (if (functionp secret
)
854 (defun auth-source-format-prompt (prompt alist
)
855 "Format PROMPT using %x (for any character x) specifiers in ALIST."
857 (let ((c (nth 0 cell
))
860 (setq prompt
(replace-regexp-in-string (format "%%%c" c
)
865 (defun auth-source-ensure-strings (values)
868 (unless (listp values
)
869 (setq values
(list values
)))
870 (mapcar (lambda (value)
876 ;;; Backend specific parsing: netrc/authinfo backend
878 (defun auth-source--aput-1 (alist key val
)
881 (while (and (consp rest
) (not (equal key
(caar rest
))))
882 (push (pop rest
) seen
))
884 (if (null rest
) alist
885 (nconc (nreverse seen
)
886 (if (equal key
(caar rest
)) (cdr rest
) rest
))))))
887 (defmacro auth-source--aput
(var key val
)
888 `(setq ,var
(auth-source--aput-1 ,var
,key
,val
)))
890 (defun auth-source--aget (alist key
)
891 (cdr (assoc key alist
)))
893 ;; (auth-source-netrc-parse :file "~/.authinfo.gpg")
894 (cl-defun auth-source-netrc-parse (&key file max host user port require
896 "Parse FILE and return a list of all entries in the file.
897 Note that the MAX parameter is used so we can exit the parse early."
899 ;; We got already parsed contents; just return it.
901 (when (file-exists-p file
)
902 (setq port
(auth-source-ensure-strings port
))
904 (let* ((max (or max
5000)) ; sanity check: default to stop at 5K
906 (cached (cdr-safe (assoc file auth-source-netrc-cache
)))
907 (cached-mtime (plist-get cached
:mtime
))
908 (cached-secrets (plist-get cached
:secret
))
909 (check (lambda(alist)
911 (auth-source-search-collection
914 (auth-source--aget alist
"machine")
915 (auth-source--aget alist
"host")
917 (auth-source-search-collection
920 (auth-source--aget alist
"login")
921 (auth-source--aget alist
"account")
922 (auth-source--aget alist
"user")
924 (auth-source-search-collection
927 (auth-source--aget alist
"port")
928 (auth-source--aget alist
"protocol")
931 ;; the required list of keys is nil, or
933 ;; every element of require is in n (normalized)
934 (let ((n (nth 0 (auth-source-netrc-normalize
935 (list alist
) file
))))
936 (cl-loop for req in require
937 always
(plist-get n req
)))))))
940 (if (and (functionp cached-secrets
)
942 (nth 5 (file-attributes file
))))
944 (auth-source-do-trivia
945 "auth-source-netrc-parse: using CACHED file data for %s"
947 (insert (funcall cached-secrets
)))
948 (insert-file-contents file
)
949 ;; cache all netrc files (used to be just .gpg files)
950 ;; Store the contents of the file heavily encrypted in memory.
951 ;; (note for the irony-impaired: they are just obfuscated)
953 auth-source-netrc-cache file
954 (list :mtime
(nth 5 (file-attributes file
))
955 :secret
(let ((v (mapcar #'1+ (buffer-string))))
956 (lambda () (apply #'string
(mapcar #'1- v
)))))))
957 (goto-char (point-min))
958 (let ((entries (auth-source-netrc-parse-entries check max
))
960 (while (setq alist
(pop entries
))
961 (push (nreverse alist
) result
)))
964 (when auth-source-gpg-encrypt-to
965 ;; (see bug#7487) making `epa-file-encrypt-to' local to
966 ;; this buffer lets epa-file skip the key selection query
967 ;; (see the `local-variable-p' check in
968 ;; `epa-file-write-region').
969 (unless (local-variable-p 'epa-file-encrypt-to
(current-buffer))
970 (make-local-variable 'epa-file-encrypt-to
))
971 (if (listp auth-source-gpg-encrypt-to
)
972 (setq epa-file-encrypt-to auth-source-gpg-encrypt-to
)))
974 ;; ask AFTER we've successfully opened the file
975 (when (y-or-n-p (format "Save file %s? (%d deletions)"
977 (write-region (point-min) (point-max) file nil
'silent
)
978 (auth-source-do-debug
979 "auth-source-netrc-parse: modified %d lines in %s"
982 (nreverse result
))))))
984 (defun auth-source-netrc-parse-next-interesting ()
985 "Advance to the next interesting position in the current buffer."
986 ;; If we're looking at a comment or are at the end of the line, move forward
987 (while (or (looking-at "#")
991 (skip-chars-forward "\t "))
993 (defun auth-source-netrc-parse-one ()
994 "Read one thing from the current buffer."
995 (auth-source-netrc-parse-next-interesting)
997 (when (or (looking-at "'\\([^']*\\)'")
998 (looking-at "\"\\([^\"]*\\)\"")
999 (looking-at "\\([^ \t\n]+\\)"))
1000 (forward-char (length (match-string 0)))
1001 (auth-source-netrc-parse-next-interesting)
1002 (match-string-no-properties 1)))
1004 ;; with thanks to org-mode
1005 (defsubst auth-source-current-line
(&optional pos
)
1007 (and pos
(goto-char pos
))
1008 ;; works also in narrowed buffer, because we start at 1, not point-min
1009 (+ (if (bolp) 1 0) (count-lines 1 (point)))))
1011 (defun auth-source-netrc-parse-entries(check max
)
1012 "Parse up to MAX netrc entries, passed by CHECK, from the current buffer."
1013 (let ((adder (lambda(check alist all
)
1016 (> max
(length all
))
1017 (funcall check alist
))
1020 item item2 all alist default
)
1021 (while (setq item
(auth-source-netrc-parse-one))
1022 (setq default
(equal item
"default"))
1023 ;; We're starting a new machine. Save the old one.
1026 (equal item
"machine")))
1027 ;; (auth-source-do-trivia
1028 ;; "auth-source-netrc-parse-entries: got entry %S" alist)
1029 (setq all
(funcall adder check alist all
)
1031 ;; In default entries, we don't have a next token.
1032 ;; We store them as ("machine" . t)
1034 (push (cons "machine" t
) alist
)
1035 ;; Not a default entry. Grab the next item.
1036 (when (setq item2
(auth-source-netrc-parse-one))
1037 ;; Did we get a "machine" value?
1038 (if (equal item2
"machine")
1040 "%s: Unexpected `machine' token at line %d"
1041 "auth-source-netrc-parse-entries"
1042 (auth-source-current-line))
1043 (push (cons item item2
) alist
)))))
1045 ;; Clean up: if there's an entry left over, use it.
1047 (setq all
(funcall adder check alist all
))
1048 ;; (auth-source-do-trivia
1049 ;; "auth-source-netrc-parse-entries: got2 entry %S" alist)
1053 (defvar auth-source-passphrase-alist nil
)
1055 (defun auth-source-token-passphrase-callback-function (_context _key-id file
)
1056 (let* ((file (file-truename file
))
1057 (entry (assoc file auth-source-passphrase-alist
))
1059 ;; return the saved passphrase, calling a function if needed
1060 (or (copy-sequence (if (functionp (cdr entry
))
1061 (funcall (cdr entry
))
1065 (setq entry
(list file
))
1066 (push entry auth-source-passphrase-alist
))
1069 (format "Passphrase for %s tokens: " file
)
1071 (setcdr entry
(let ((p (copy-sequence passphrase
)))
1075 (defun auth-source-epa-extract-gpg-token (secret file
)
1076 "Pass either the decoded SECRET or the gpg:BASE64DATA version.
1077 FILE is the file from which we obtained this token."
1078 (when (string-match "^gpg:\\(.+\\)" secret
)
1079 (setq secret
(base64-decode-string (match-string 1 secret
))))
1080 (let ((context (epg-make-context 'OpenPGP
)))
1081 (epg-context-set-passphrase-callback
1083 (cons #'auth-source-token-passphrase-callback-function
1085 (epg-decrypt-string context secret
)))
1087 (defvar pp-escape-newlines
)
1089 (defun auth-source-epa-make-gpg-token (secret file
)
1090 (let ((context (epg-make-context 'OpenPGP
))
1091 (pp-escape-newlines nil
)
1093 (setf (epg-context-armor context
) t
)
1094 (epg-context-set-passphrase-callback
1096 (cons #'auth-source-token-passphrase-callback-function
1098 (setq cipher
(epg-encrypt-string context secret nil
))
1101 (base64-encode-region (point-min) (point-max) t
)
1102 (concat "gpg:" (buffer-substring-no-properties
1106 (defun auth-source--symbol-keyword (symbol)
1107 (intern (format ":%s" symbol
)))
1109 (defun auth-source-netrc-normalize (alist filename
)
1110 (mapcar (lambda (entry)
1112 (while (setq item
(pop entry
))
1113 (let ((k (car item
))
1116 ;; apply key aliases
1117 (setq k
(cond ((member k
'("machine")) "host")
1118 ((member k
'("login" "account")) "user")
1119 ((member k
'("protocol")) "port")
1120 ((member k
'("password")) "secret")
1123 ;; send back the secret in a function (lexical binding)
1124 (when (equal k
"secret")
1125 (setq v
(let ((lexv v
)
1126 (token-decoder nil
))
1127 (when (string-match "^gpg:" lexv
)
1128 ;; it's a GPG token: create a token decoder
1129 ;; which unsets itself once
1133 (auth-source-epa-extract-gpg-token
1136 (setq token-decoder nil
)))))
1139 (setq lexv
(funcall token-decoder lexv
)))
1141 (setq ret
(plist-put ret
1142 (auth-source--symbol-keyword k
)
1147 (cl-defun auth-source-netrc-search (&rest spec
1148 &key backend require create
1149 type max host user port
1151 "Given a property list SPEC, return search matches from the :backend.
1152 See `auth-source-search' for details on SPEC."
1153 ;; just in case, check that the type is correct (null or same as the backend)
1154 (cl-assert (or (null type
) (eq type
(oref backend type
)))
1155 t
"Invalid netrc search: %s %s")
1157 (let ((results (auth-source-netrc-normalize
1158 (auth-source-netrc-parse
1161 :file
(oref backend source
)
1165 (oref backend source
))))
1167 ;; if we need to create an entry AND none were found to match
1171 ;; create based on the spec and record the value
1173 ;; if the user did not want to create the entry
1174 ;; in the file, it will be returned
1175 (apply (slot-value backend
'create-function
) spec
)
1176 ;; if not, we do the search again without :create
1177 ;; to get the updated data.
1179 ;; the result will be returned, even if the search fails
1180 (apply #'auth-source-netrc-search
1181 (plist-put spec
:create nil
)))))
1184 (defun auth-source-netrc-element-or-first (v)
1189 ;; (auth-source-search :host "nonesuch" :type 'netrc :max 1 :create t)
1190 ;; (auth-source-search :host "nonesuch" :type 'netrc :max 1 :create t :create-extra-keys '((A "default A") (B)))
1192 (cl-defun auth-source-netrc-create (&rest spec
1193 &key backend host port create
1195 (let* ((base-required '(host user port secret
))
1196 ;; we know (because of an assertion in auth-source-search) that the
1197 ;; :create parameter is either t or a list (which includes nil)
1198 (create-extra (if (eq t create
) nil create
))
1199 (current-data (car (auth-source-search :max
1
1202 (required (append base-required create-extra
))
1203 (file (oref backend source
))
1205 ;; `valist' is an alist
1207 ;; `artificial' will be returned if no creation is needed
1210 ;; only for base required elements (defined as function parameters):
1211 ;; fill in the valist with whatever data we may have from the search
1212 ;; we complete the first value if it's a list and use the value otherwise
1213 (dolist (br base-required
)
1214 (let ((val (plist-get spec
(auth-source--symbol-keyword br
))))
1216 (let ((br-choice (cond
1217 ;; all-accepting choice (predicate is t)
1219 ;; just the value otherwise
1222 (auth-source--aput valist br br-choice
))))))
1224 ;; for extra required elements, see if the spec includes a value for them
1225 (dolist (er create-extra
)
1226 (let ((k (auth-source--symbol-keyword er
))
1227 (keys (cl-loop for i below
(length spec
) by
2
1228 collect
(nth i spec
))))
1230 (auth-source--aput valist er
(plist-get spec k
)))))
1232 ;; for each required element
1233 (dolist (r required
)
1234 (let* ((data (auth-source--aget valist r
))
1235 ;; take the first element if the data is a list
1236 (data (or (auth-source-netrc-element-or-first data
)
1237 (plist-get current-data
1238 (auth-source--symbol-keyword r
))))
1239 ;; this is the default to be offered
1240 (given-default (auth-source--aget
1241 auth-source-creation-defaults r
))
1242 ;; the default supplementals are simple:
1243 ;; for the user, try `given-default' and then (user-login-name);
1244 ;; otherwise take `given-default'
1246 ((and (not given-default
) (eq r
'user
))
1249 (printable-defaults (list
1252 (auth-source-netrc-element-or-first
1253 (auth-source--aget valist
'user
))
1254 (plist-get artificial
:user
)
1258 (auth-source-netrc-element-or-first
1259 (auth-source--aget valist
'host
))
1260 (plist-get artificial
:host
)
1264 (auth-source-netrc-element-or-first
1265 (auth-source--aget valist
'port
))
1266 (plist-get artificial
:port
)
1268 (prompt (or (auth-source--aget auth-source-creation-prompts r
)
1270 (secret "%p password for %u@%h: ")
1271 (user "%p user name for %h: ")
1272 (host "%p host name for user %u: ")
1273 (port "%p port for %u@%h: "))
1274 (format "Enter %s (%%u@%%h:%%p): " r
)))
1275 (prompt (auth-source-format-prompt
1277 `((?u
,(auth-source--aget printable-defaults
'user
))
1278 (?h
,(auth-source--aget printable-defaults
'host
))
1279 (?p
,(auth-source--aget printable-defaults
'port
))))))
1281 ;; Store the data, prompting for the password if needed.
1284 ;; Special case prompt for passwords.
1285 ;; 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)))
1286 ;; TODO: or maybe leave as (setq auth-source-netrc-use-gpg-tokens 'never)
1287 (let* ((ep (format "Use GPG password tokens in %s?" file
))
1290 ((eq auth-source-netrc-use-gpg-tokens
'never
)
1292 ((listp auth-source-netrc-use-gpg-tokens
)
1293 (let ((check (copy-sequence
1294 auth-source-netrc-use-gpg-tokens
))
1297 (setq item
(pop check
))
1298 (when (or (eq (car item
) t
)
1299 (string-match (car item
) file
))
1300 (setq ret
(cdr item
))
1302 ;; FIXME: `ret' unused.
1303 ;; Should we return it here?
1306 (plain (or (eval default
) (read-passwd prompt
))))
1307 ;; ask if we don't know what to do (in which case
1308 ;; auth-source-netrc-use-gpg-tokens must be a list)
1310 (setq gpg-encrypt
(if (y-or-n-p ep
) 'gpg
'never
))
1311 ;; TODO: save the defcustom now? or ask?
1312 (setq auth-source-netrc-use-gpg-tokens
1313 (cons `(,file
,gpg-encrypt
)
1314 auth-source-netrc-use-gpg-tokens
)))
1315 (if (eq gpg-encrypt
'gpg
)
1316 (auth-source-epa-make-gpg-token plain file
)
1318 (if (stringp default
)
1319 (read-string (if (string-match ": *\\'" prompt
)
1320 (concat (substring prompt
0 (match-beginning 0))
1321 " (default " default
"): ")
1322 (concat prompt
"(default " default
") "))
1327 (setq artificial
(plist-put artificial
1328 (auth-source--symbol-keyword r
)
1334 ;; When r is not an empty string...
1335 (when (and (stringp data
)
1336 (< 0 (length data
)))
1337 ;; this function is not strictly necessary but I think it
1338 ;; makes the code clearer -tzz
1339 (let ((printer (lambda ()
1340 ;; append the key (the symbol name of r)
1341 ;; and the value in r
1344 (if (zerop (length add
)) "" " ")
1345 ;; remap auth-source tokens to netrc
1350 (port "port") ; redundant but clearer
1351 (t (symbol-name r
)))
1352 (if (string-match "[\"# ]" data
)
1355 (setq add
(concat add
(funcall printer
)))))))
1362 (lambda () (auth-source-netrc-saver file add
))))
1366 (defun auth-source-netrc-saver (file add
)
1367 "Save a line ADD in FILE, prompting along the way.
1368 Respects `auth-source-save-behavior'. Uses
1369 `auth-source-netrc-cache' to avoid prompting more than once."
1370 (let* ((key (format "%s %s" file
(rfc2104-hash 'md5
64 16 file add
)))
1371 (cached (assoc key auth-source-netrc-cache
)))
1374 (auth-source-do-trivia
1375 "auth-source-netrc-saver: found previous run for key %s, returning"
1378 (when (file-exists-p file
)
1379 (insert-file-contents file
))
1380 (when auth-source-gpg-encrypt-to
1381 ;; (see bug#7487) making `epa-file-encrypt-to' local to
1382 ;; this buffer lets epa-file skip the key selection query
1383 ;; (see the `local-variable-p' check in
1384 ;; `epa-file-write-region').
1385 (unless (local-variable-p 'epa-file-encrypt-to
(current-buffer))
1386 (make-local-variable 'epa-file-encrypt-to
))
1387 (if (listp auth-source-gpg-encrypt-to
)
1388 (setq epa-file-encrypt-to auth-source-gpg-encrypt-to
)))
1389 ;; we want the new data to be found first, so insert at beginning
1390 (goto-char (point-min))
1392 ;; Ask AFTER we've successfully opened the file.
1393 (let ((prompt (format "Save auth info to file %s? " file
))
1394 (done (not (eq auth-source-save-behavior
'ask
)))
1395 (bufname "*auth-source Help*")
1398 (setq k
(auth-source-read-char-choice prompt
'(?y ?n ?N ?e ??
)))
1402 (with-output-to-temp-buffer bufname
1404 (concat "(y)es, save\n"
1405 "(n)o but use the info\n"
1406 "(N)o and don't ask to save again\n"
1408 "(?) for help as you can see.\n"))
1409 ;; Why? Doesn't with-output-to-temp-buffer already do
1410 ;; the exact same thing anyway? --Stef
1411 (set-buffer standard-output
)
1418 (customize-save-variable 'auth-source-save-behavior nil
))
1419 (?e
(setq add
(read-string "Line to add: " add
)))
1422 (when (get-buffer-window bufname
)
1423 (delete-window (get-buffer-window bufname
)))
1425 ;; Make sure the info is not saved.
1426 (when (null auth-source-save-behavior
)
1429 (when (< 0 (length add
))
1434 (write-region (point-min) (point-max) file nil
'silent
)
1435 ;; Make the .authinfo file non-world-readable.
1436 (set-file-modes file
#o600
)
1437 (auth-source-do-debug
1438 "auth-source-netrc-create: wrote 1 new line to %s"
1440 (message "Saved new authentication information to %s" file
)
1442 (auth-source--aput auth-source-netrc-cache key
"ran"))))
1444 ;;; Backend specific parsing: Secrets API backend
1446 (defun auth-source-secrets-listify-pattern (pattern)
1447 "Convert a pattern with lists to a list of string patterns.
1449 auth-source patterns can have values of the form :foo (\"bar\"
1450 \"qux\"), which means to match any secret with :foo equal to
1451 \"bar\" or :foo equal to \"qux\". The secrets backend supports
1452 only string values for patterns, so this routine returns a list
1453 of patterns that is equivalent to the single original pattern
1454 when interpreted such that if a secret matches any pattern in the
1455 list, it matches the original pattern."
1458 (let* ((key (pop pattern
))
1459 (value (pop pattern
))
1460 (tails (auth-source-secrets-listify-pattern pattern
))
1461 (heads (if (stringp value
)
1462 (list (list key value
))
1463 (mapcar (lambda (v) (list key v
)) value
))))
1464 (cl-loop for h in heads
1465 nconc
(cl-loop for tl in tails collect
(append h tl
))))))
1467 (cl-defun auth-source-secrets-search (&rest spec
1468 &key backend create delete label max
1470 "Search the Secrets API; spec is like `auth-source'.
1472 The :label key specifies the item's label. It is the only key
1473 that can specify a substring. Any :label value besides a string
1474 will allow any label.
1476 All other search keys must match exactly. If you need substring
1477 matching, do a wider search and narrow it down yourself.
1479 You'll get back all the properties of the token as a plist.
1481 Here's an example that looks for the first item in the `Login'
1484 (let ((auth-sources \\='(\"secrets:Login\")))
1485 (auth-source-search :max 1)
1487 Here's another that looks for the first item in the `Login'
1488 Secrets collection whose label contains `gnus':
1490 (let ((auth-sources \\='(\"secrets:Login\")))
1491 (auth-source-search :max 1 :label \"gnus\")
1493 And this one looks for the first item in the `Login' Secrets
1494 collection that's a Google Chrome entry for the git.gnus.org site
1495 authentication tokens:
1497 (let ((auth-sources \\='(\"secrets:Login\")))
1498 (auth-source-search :max 1 :signon_realm \"https://git.gnus.org/Git\"))
1502 (cl-assert (not create
) nil
1503 "The Secrets API auth-source backend doesn't support creation yet")
1505 ;; (secrets-delete-item coll elt)
1506 (cl-assert (not delete
) nil
1507 "The Secrets API auth-source backend doesn't support deletion yet")
1509 (let* ((coll (oref backend source
))
1510 (max (or max
5000)) ; sanity check: default to stop at 5K
1511 (ignored-keys '(:create
:delete
:max
:backend
:label
:require
:type
))
1512 (search-keys (cl-loop for i below
(length spec
) by
2
1513 unless
(memq (nth i spec
) ignored-keys
)
1514 collect
(nth i spec
)))
1515 ;; build a search spec without the ignored keys
1516 ;; if a search key is nil or t (match anything), we skip it
1517 (search-specs (auth-source-secrets-listify-pattern
1518 (apply #'append
(mapcar
1520 (if (or (null (plist-get spec k
))
1521 (eq t
(plist-get spec k
)))
1523 (list k
(plist-get spec k
))))
1525 ;; needed keys (always including host, login, port, and secret)
1526 (returned-keys (delete-dups (append
1527 '(:host
:login
:port
:secret
)
1531 for search-spec in search-specs
1533 (cl-loop for item in
(apply #'secrets-search-items coll search-spec
)
1534 unless
(and (stringp label
)
1535 (not (string-match label item
)))
1537 ;; TODO: respect max in `secrets-search-items', not after the fact
1538 (items (butlast items
(- (length items
) max
)))
1539 ;; convert the item name to a full plist
1540 (items (mapcar (lambda (item)
1542 ;; make an entry for the secret (password) element
1545 (let ((v (secrets-get-secret coll item
)))
1547 ;; rewrite the entry from ((k1 v1) (k2 v2)) to plist
1549 (mapcar (lambda (entry)
1550 (list (car entry
) (cdr entry
)))
1551 (secrets-get-attributes coll item
)))))
1553 ;; ensure each item has each key in `returned-keys'
1554 (items (mapcar (lambda (plist)
1557 (mapcar (lambda (req)
1558 (if (plist-get plist req
)
1566 (defun auth-source-secrets-create (&rest spec
)
1568 ;; (apply 'secrets-create-item (auth-get-source entry) name passwd spec)
1571 ;;; Backend specific parsing: Mac OS Keychain (using /usr/bin/security) backend
1573 (cl-defun auth-source-macos-keychain-search (&rest spec
1574 &key backend create delete type max
1576 "Search the macOS Keychain; spec is like `auth-source'.
1578 All search keys must match exactly. If you need substring
1579 matching, do a wider search and narrow it down yourself.
1581 You'll get back all the properties of the token as a plist.
1583 The :type key is either `macos-keychain-internet' or
1584 `macos-keychain-generic'.
1586 For the internet keychain type, the :label key searches the
1587 item's labels (\"-l LABEL\" passed to \"/usr/bin/security\").
1588 Similarly, :host maps to \"-s HOST\", :user maps to \"-a USER\",
1589 and :port maps to \"-P PORT\" or \"-r PROT\"
1590 \(note PROT has to be a 4-character string).
1592 For the generic keychain type, the :label key searches the item's
1593 labels (\"-l LABEL\" passed to \"/usr/bin/security\").
1594 Similarly, :host maps to \"-c HOST\" (the \"creator\" keychain
1595 field), :user maps to \"-a USER\", and :port maps to \"-s PORT\".
1597 Here's an example that looks for the first item in the default
1598 generic macOS Keychain:
1600 (let ((auth-sources \\='(macos-keychain-generic)))
1601 (auth-source-search :max 1)
1603 Here's another that looks for the first item in the internet
1604 macOS Keychain collection whose label is `gnus':
1606 (let ((auth-sources \\='(macos-keychain-internet)))
1607 (auth-source-search :max 1 :label \"gnus\")
1609 And this one looks for the first item in the internet keychain
1610 entries for git.gnus.org:
1612 (let ((auth-sources \\='(macos-keychain-internet\")))
1613 (auth-source-search :max 1 :host \"git.gnus.org\"))
1616 (cl-assert (not create
) nil
1617 "The macOS Keychain auth-source backend doesn't support creation yet")
1619 ;; (macos-keychain-delete-item coll elt)
1620 (cl-assert (not delete
) nil
1621 "The macOS Keychain auth-source backend doesn't support deletion yet")
1623 (let* ((coll (oref backend source
))
1624 (max (or max
5000)) ; sanity check: default to stop at 5K
1625 ;; Filter out ignored keys from the spec
1626 (ignored-keys '(:create
:delete
:max
:backend
:label
:host
:port
))
1627 ;; Build a search spec without the ignored keys
1628 ;; FIXME make this loop a function? it's used in at least 3 places
1629 (search-keys (cl-loop for i below
(length spec
) by
2
1630 unless
(memq (nth i spec
) ignored-keys
)
1631 collect
(nth i spec
)))
1632 ;; If a search key value is nil or t (match anything), we skip it
1633 (search-spec (apply #'append
(mapcar
1635 (if (or (null (plist-get spec k
))
1636 (eq t
(plist-get spec k
)))
1638 (list k
(plist-get spec k
))))
1640 ;; needed keys (always including host, login, port, and secret)
1641 (returned-keys (delete-dups (append
1642 '(:host
:login
:port
:secret
)
1644 ;; Extract host and port from spec
1645 (hosts (plist-get spec
:host
))
1646 (hosts (if (and hosts
(listp hosts
)) hosts
`(,hosts
)))
1647 (ports (plist-get spec
:port
))
1648 (ports (if (and ports
(listp ports
)) ports
`(,ports
)))
1649 ;; Loop through all combinations of host/port and pass each of these to
1650 ;; auth-source-macos-keychain-search-items
1651 (items (catch 'match
1652 (dolist (host hosts
)
1653 (dolist (port ports
)
1654 (let* ((port (if port
(format "%S" port
)))
1655 (items (apply #'auth-source-macos-keychain-search-items
1662 (throw 'match items
)))))))
1664 ;; ensure each item has each key in `returned-keys'
1665 (items (mapcar (lambda (plist)
1668 (mapcar (lambda (req)
1669 (if (plist-get plist req
)
1678 (defun auth-source--decode-octal-string (string)
1679 "Convert octal string to utf-8 string. E.g: 'a\134b' to 'a\b'"
1680 (let ((list (string-to-list string
))
1681 (size (length string
)))
1682 (decode-coding-string
1683 (apply #'unibyte-string
1684 (cl-loop for i
= 0 then
(+ i
(if (eq (nth i list
) ?
\\) 4 1))
1685 for var
= (nth i list
)
1688 collect
(string-to-number
1689 (concat (cl-subseq list
(+ i
1) (+ i
4))) 8)
1694 (cl-defun auth-source-macos-keychain-search-items (coll _type _max host port
1695 &key label type user
1697 (let* ((keychain-generic (eq type
'macos-keychain-generic
))
1698 (args `(,(if keychain-generic
1699 "find-generic-password"
1700 "find-internet-password")
1702 (ret (list :type type
)))
1704 (setq args
(append args
(list "-l" label
))))
1706 (setq args
(append args
(list (if keychain-generic
"-c" "-s") host
))))
1708 (setq args
(append args
(list "-a" user
))))
1711 (if keychain-generic
1712 (setq args
(append args
(list "-s" port
)))
1713 (setq args
(append args
(list
1714 (if (string-match "[0-9]+" port
) "-P" "-r")
1717 (unless (equal coll
"default")
1718 (setq args
(append args
(list coll
))))
1721 (apply #'call-process
"/usr/bin/security" nil t nil args
)
1722 (goto-char (point-min))
1725 ((looking-at "^password: \\(?:0x[0-9A-F]+\\)? *\"\\(.+\\)\"")
1726 (setq ret
(auth-source-macos-keychain-result-append
1730 (let ((v (auth-source--decode-octal-string
1733 ;; TODO: check if this is really the label
1734 ;; match 0x00000007 <blob>="AppleID"
1736 "^[ ]+0x00000007 <blob>=\\(?:0x[0-9A-F]+\\)? *\"\\(.+\\)\"")
1737 (setq ret
(auth-source-macos-keychain-result-append
1741 (auth-source--decode-octal-string (match-string 1)))))
1742 ;; match "crtr"<uint32>="aapl"
1743 ;; match "svce"<blob>="AppleID"
1745 "^[ ]+\"\\([a-z]+\\)\"[^=]+=\\(?:0x[0-9A-F]+\\)? *\"\\(.+\\)\"")
1746 (setq ret
(auth-source-macos-keychain-result-append
1749 (auth-source--decode-octal-string (match-string 1))
1750 (auth-source--decode-octal-string (match-string 2))))))
1752 ;; return `ret' iff it has the :secret key
1753 (and (plist-get ret
:secret
) (list ret
))))
1755 (defun auth-source-macos-keychain-result-append (result generic k v
)
1757 (push (auth-source--symbol-keyword
1759 ((equal k
"acct") "user")
1760 ;; for generic keychains, creator is host, service is port
1761 ((and generic
(equal k
"crtr")) "host")
1762 ((and generic
(equal k
"svce")) "port")
1763 ;; for internet keychains, protocol is port, server is host
1764 ((and (not generic
) (equal k
"ptcl")) "port")
1765 ((and (not generic
) (equal k
"srvr")) "host")
1769 (defun auth-source-macos-keychain-create (&rest spec
)
1773 ;;; Backend specific parsing: PLSTORE backend
1775 (cl-defun auth-source-plstore-search (&rest spec
1776 &key backend create delete max
1778 "Search the PLSTORE; spec is like `auth-source'."
1779 (let* ((store (oref backend data
))
1780 (max (or max
5000)) ; sanity check: default to stop at 5K
1781 (ignored-keys '(:create
:delete
:max
:backend
:label
:require
:type
))
1782 (search-keys (cl-loop for i below
(length spec
) by
2
1783 unless
(memq (nth i spec
) ignored-keys
)
1784 collect
(nth i spec
)))
1785 ;; build a search spec without the ignored keys
1786 ;; if a search key is nil or t (match anything), we skip it
1787 (search-spec (apply #'append
(mapcar
1789 (let ((v (plist-get spec k
)))
1797 ;; needed keys (always including host, login, port, and secret)
1798 (returned-keys (delete-dups (append
1799 '(:host
:login
:port
:secret
)
1801 (items (plstore-find store search-spec
))
1802 (item-names (mapcar #'car items
))
1803 (items (butlast items
(- (length items
) max
)))
1804 ;; convert the item to a full plist
1805 (items (mapcar (lambda (item)
1806 (let* ((plist (copy-tree (cdr item
)))
1807 (secret (plist-member plist
:secret
)))
1811 (let ((v (car (cdr secret
))))
1815 ;; ensure each item has each key in `returned-keys'
1816 (items (mapcar (lambda (plist)
1819 (mapcar (lambda (req)
1820 (if (plist-get plist req
)
1827 ;; if we need to create an entry AND none were found to match
1831 ;; create based on the spec and record the value
1833 ;; if the user did not want to create the entry
1834 ;; in the file, it will be returned
1835 (apply (slot-value backend
'create-function
) spec
)
1836 ;; if not, we do the search again without :create
1837 ;; to get the updated data.
1839 ;; the result will be returned, even if the search fails
1840 (apply #'auth-source-plstore-search
1841 (plist-put spec
:create nil
)))))
1844 (dolist (item-name item-names
)
1845 (plstore-delete store item-name
))
1846 (plstore-save store
)))
1849 (cl-defun auth-source-plstore-create (&rest spec
1850 &key backend host port create
1852 (let* ((base-required '(host user port secret
))
1853 (base-secret '(secret))
1854 ;; we know (because of an assertion in auth-source-search) that the
1855 ;; :create parameter is either t or a list (which includes nil)
1856 (create-extra (if (eq t create
) nil create
))
1857 (current-data (car (auth-source-search :max
1
1860 (required (append base-required create-extra
))
1861 ;; `valist' is an alist
1863 ;; `artificial' will be returned if no creation is needed
1867 ;; only for base required elements (defined as function parameters):
1868 ;; fill in the valist with whatever data we may have from the search
1869 ;; we complete the first value if it's a list and use the value otherwise
1870 (dolist (br base-required
)
1871 (let ((val (plist-get spec
(auth-source--symbol-keyword br
))))
1873 (let ((br-choice (cond
1874 ;; all-accepting choice (predicate is t)
1876 ;; just the value otherwise
1879 (auth-source--aput valist br br-choice
))))))
1881 ;; for extra required elements, see if the spec includes a value for them
1882 (dolist (er create-extra
)
1883 (let ((k (auth-source--symbol-keyword er
))
1884 (keys (cl-loop for i below
(length spec
) by
2
1885 collect
(nth i spec
))))
1887 (auth-source--aput valist er
(plist-get spec k
)))))
1889 ;; for each required element
1890 (dolist (r required
)
1891 (let* ((data (auth-source--aget valist r
))
1892 ;; take the first element if the data is a list
1893 (data (or (auth-source-netrc-element-or-first data
)
1894 (plist-get current-data
1895 (auth-source--symbol-keyword r
))))
1896 ;; this is the default to be offered
1897 (given-default (auth-source--aget
1898 auth-source-creation-defaults r
))
1899 ;; the default supplementals are simple:
1900 ;; for the user, try `given-default' and then (user-login-name);
1901 ;; otherwise take `given-default'
1903 ((and (not given-default
) (eq r
'user
))
1906 (printable-defaults (list
1909 (auth-source-netrc-element-or-first
1910 (auth-source--aget valist
'user
))
1911 (plist-get artificial
:user
)
1915 (auth-source-netrc-element-or-first
1916 (auth-source--aget valist
'host
))
1917 (plist-get artificial
:host
)
1921 (auth-source-netrc-element-or-first
1922 (auth-source--aget valist
'port
))
1923 (plist-get artificial
:port
)
1925 (prompt (or (auth-source--aget auth-source-creation-prompts r
)
1927 (secret "%p password for %u@%h: ")
1928 (user "%p user name for %h: ")
1929 (host "%p host name for user %u: ")
1930 (port "%p port for %u@%h: "))
1931 (format "Enter %s (%%u@%%h:%%p): " r
)))
1932 (prompt (auth-source-format-prompt
1934 `((?u
,(auth-source--aget printable-defaults
'user
))
1935 (?h
,(auth-source--aget printable-defaults
'host
))
1936 (?p
,(auth-source--aget printable-defaults
'port
))))))
1938 ;; Store the data, prompting for the password if needed.
1941 (or (eval default
) (read-passwd prompt
))
1942 (if (stringp default
)
1944 (if (string-match ": *\\'" prompt
)
1945 (concat (substring prompt
0 (match-beginning 0))
1946 " (default " default
"): ")
1947 (concat prompt
"(default " default
") "))
1952 (if (member r base-secret
)
1953 (setq secret-artificial
1954 (plist-put secret-artificial
1955 (auth-source--symbol-keyword r
)
1957 (setq artificial
(plist-put artificial
1958 (auth-source--symbol-keyword r
)
1960 (plstore-put (oref backend data
)
1961 (sha1 (format "%s@%s:%s"
1962 (plist-get artificial
:user
)
1963 (plist-get artificial
:host
)
1964 (plist-get artificial
:port
)))
1965 artificial secret-artificial
)
1966 (if (y-or-n-p (format "Save auth info to file %s? "
1967 (plstore-get-file (oref backend data
))))
1968 (plstore-save (oref backend data
)))))
1972 ;; (auth-source-user-or-password '("login" "password") "imap.myhost.com" t "tzz")
1974 ;; deprecate the old interface
1975 (make-obsolete 'auth-source-user-or-password
1976 'auth-source-search
"Emacs 24.1")
1977 (make-obsolete 'auth-source-forget-user-or-password
1978 'auth-source-forget
"Emacs 24.1")
1980 (defun auth-source-user-or-password
1981 (mode host port
&optional username create-missing delete-existing
)
1982 "Find MODE (string or list of strings) matching HOST and PORT.
1984 DEPRECATED in favor of `auth-source-search'!
1986 USERNAME is optional and will be used as \"login\" in a search
1987 across the Secret Service API (see secrets.el) if the resulting
1988 items don't have a username. This means that if you search for
1989 username \"joe\" and it matches an item but the item doesn't have
1990 a :user attribute, the username \"joe\" will be returned.
1992 A non nil DELETE-EXISTING means deleting any matching password
1993 entry in the respective sources. This is useful only when
1994 CREATE-MISSING is non nil as well; the intended use case is to
1995 remove wrong password entries.
1997 If no matching entry is found, and CREATE-MISSING is non nil,
1998 the password will be retrieved interactively, and it will be
1999 stored in the password database which matches best (see
2002 MODE can be \"login\" or \"password\"."
2003 (auth-source-do-debug
2004 "auth-source-user-or-password: DEPRECATED get %s for %s (%s) + user=%s"
2005 mode host port username
)
2007 (let* ((listy (listp mode
))
2008 (mode (if listy mode
(list mode
)))
2009 ;; (cname (if username
2010 ;; (format "%s %s:%s %s" mode host port username)
2011 ;; (format "%s %s:%s" mode host port)))
2012 (search (list :host host
:port port
))
2013 (search (if username
(append search
(list :user username
)) search
))
2014 (search (if create-missing
2015 (append search
(list :create t
))
2017 (search (if delete-existing
2018 (append search
(list :delete t
))
2020 ;; (found (if (not delete-existing)
2021 ;; (gethash cname auth-source-cache)
2022 ;; (remhash cname auth-source-cache)
2027 (auth-source-do-debug
2028 "auth-source-user-or-password: DEPRECATED cached %s=%s for %s (%s) + %s"
2030 ;; don't show the password
2031 (if (and (member "password" mode
) t
)
2035 found
) ; return the found data
2036 ;; else, if not found, search with a max of 1
2037 (let ((choice (nth 0 (apply #'auth-source-search
2038 (append '(:max
1) search
)))))
2042 ((equal "password" m
)
2043 (push (if (plist-get choice
:secret
)
2044 (funcall (plist-get choice
:secret
))
2047 (push (plist-get choice
:user
) found
)))))
2048 (setq found
(nreverse found
))
2049 (setq found
(if listy found
(car-safe found
)))))
2053 (defun auth-source-user-and-password (host &optional user
)
2054 (let* ((auth-info (car
2060 :require
'(:user
:secret
)
2065 :require
'(:user
:secret
)
2067 (user (plist-get auth-info
:user
))
2068 (password (plist-get auth-info
:secret
)))
2069 (when (functionp password
)
2070 (setq password
(funcall password
)))
2071 (list user password auth-info
)))
2073 (provide 'auth-source
)
2075 ;;; auth-source.el ends here