HCoop / bpt / emacs.git / blame
| Commit | Line | Data |
|---|---|---|
| 23f87bed | 1 | ;;; mml2015.el --- MIME Security with Pretty Good Privacy (PGP) |
| e84b4b86 TTN |
2 | |
| 3 | ;; Copyright (C) 2000, 2001, 2002, 2003, 2004, | |
| e3fe4da0 | 4 | ;; 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
| 23f87bed MB |
5 | |
| 6 | ;; Author: Shenghuo Zhu <zsh@cs.rochester.edu> | |
| 7 | ;; Keywords: PGP MIME MML | |
| 8 | ||
| 9 | ;; This file is part of GNU Emacs. | |
| 10 | ||
| 11 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
| 12 | ;; it under the terms of the GNU General Public License as published | |
| 5a9dffec | 13 | ;; by the Free Software Foundation; either version 3, or (at your |
| 23f87bed MB |
14 | ;; option) any later version. |
| 15 | ||
| 16 | ;; GNU Emacs is distributed in the hope that it will be useful, but | |
| 17 | ;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 19 | ;; General Public License for more details. | |
| 20 | ||
| 21 | ;; You should have received a copy of the GNU General Public License | |
| 22 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
| 3a35cf56 LK |
23 | ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 24 | ;; Boston, MA 02110-1301, USA. | |
| 23f87bed MB |
25 | |
| 26 | ;;; Commentary: | |
| 27 | ||
| 28 | ;; RFC 2015 is updated by RFC 3156, this file should be compatible | |
| 29 | ;; with both. | |
| 30 | ||
| 31 | ;;; Code: | |
| 32 | ||
| 5a12b40c GM |
33 | ;; For Emacs < 22.2. |
| 34 | (eval-and-compile | |
| 35 | (unless (fboundp 'declare-function) (defmacro declare-function (&rest r)))) | |
| 36 | ||
| 23f87bed MB |
37 | (eval-when-compile (require 'cl)) |
| 38 | (require 'mm-decode) | |
| 39 | (require 'mm-util) | |
| 40 | (require 'mml) | |
| 01c52d31 | 41 | (require 'mml-sec) |
| 23f87bed | 42 | |
| 4ae9592b JB |
43 | (defvar mc-pgp-always-sign) |
| 44 | ||
| 5a12b40c GM |
45 | (declare-function epg-check-configuration "ext:epg-config" |
| 46 | (config &optional minimum-version)) | |
| 47 | (declare-function epg-configuration "ext:epg-config" ()) | |
| 48 | ||
| 23f87bed | 49 | (defvar mml2015-use (or |
| 01c52d31 MB |
50 | (condition-case nil |
| 51 | (progn | |
| 52 | (require 'epg-config) | |
| 53 | (epg-check-configuration (epg-configuration)) | |
| 54 | 'epg) | |
| 55 | (error)) | |
| 23f87bed MB |
56 | (progn |
| 57 | (ignore-errors | |
| 01c52d31 MB |
58 | ;; Avoid the "Recursive load suspected" error |
| 59 | ;; in Emacs 21.1. | |
| 60 | (let ((recursive-load-depth-limit 100)) | |
| 61 | (require 'pgg))) | |
| 23f87bed MB |
62 | (and (fboundp 'pgg-sign-region) |
| 63 | 'pgg)) | |
| 64 | (progn | |
| 65 | (ignore-errors | |
| 66 | (require 'gpg)) | |
| 67 | (and (fboundp 'gpg-sign-detached) | |
| 68 | 'gpg)) | |
| 69 | (progn (ignore-errors | |
| 70 | (load "mc-toplev")) | |
| 71 | (and (fboundp 'mc-encrypt-generic) | |
| 72 | (fboundp 'mc-sign-generic) | |
| 73 | (fboundp 'mc-cleanup-recipient-headers) | |
| 74 | 'mailcrypt))) | |
| 01c52d31 MB |
75 | "The package used for PGP/MIME. |
| 76 | Valid packages include `epg', `pgg', `gpg' and `mailcrypt'.") | |
| 23f87bed MB |
77 | |
| 78 | ;; Something is not RFC2015. | |
| 79 | (defvar mml2015-function-alist | |
| 80 | '((mailcrypt mml2015-mailcrypt-sign | |
| 81 | mml2015-mailcrypt-encrypt | |
| 82 | mml2015-mailcrypt-verify | |
| 83 | mml2015-mailcrypt-decrypt | |
| 84 | mml2015-mailcrypt-clear-verify | |
| 85 | mml2015-mailcrypt-clear-decrypt) | |
| 86 | (gpg mml2015-gpg-sign | |
| 87 | mml2015-gpg-encrypt | |
| 88 | mml2015-gpg-verify | |
| 89 | mml2015-gpg-decrypt | |
| 90 | mml2015-gpg-clear-verify | |
| 91 | mml2015-gpg-clear-decrypt) | |
| 92 | (pgg mml2015-pgg-sign | |
| 93 | mml2015-pgg-encrypt | |
| 94 | mml2015-pgg-verify | |
| 95 | mml2015-pgg-decrypt | |
| 96 | mml2015-pgg-clear-verify | |
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97 | mml2015-pgg-clear-decrypt) |
| 98 | (epg mml2015-epg-sign | |
| 99 | mml2015-epg-encrypt | |
| 100 | mml2015-epg-verify | |
| 101 | mml2015-epg-decrypt | |
| 102 | mml2015-epg-clear-verify | |
| 103 | mml2015-epg-clear-decrypt)) | |
| 23f87bed MB |
104 | "Alist of PGP/MIME functions.") |
| 105 | ||
| 106 | (defvar mml2015-result-buffer nil) | |
| 107 | ||
| 108 | (defcustom mml2015-unabbrev-trust-alist | |
| 109 | '(("TRUST_UNDEFINED" . nil) | |
| 110 | ("TRUST_NEVER" . nil) | |
| 111 | ("TRUST_MARGINAL" . t) | |
| 112 | ("TRUST_FULLY" . t) | |
| 113 | ("TRUST_ULTIMATE" . t)) | |
| 114 | "Map GnuPG trust output values to a boolean saying if you trust the key." | |
| bf247b6e | 115 | :version "22.1" |
| e79f14a4 | 116 | :group 'mime-security |
| 23f87bed MB |
117 | :type '(repeat (cons (regexp :tag "GnuPG output regexp") |
| 118 | (boolean :tag "Trust key")))) | |
| 119 | ||
| 01c52d31 MB |
120 | (defcustom mml2015-verbose mml-secure-verbose |
| 121 | "If non-nil, ask the user about the current operation more verbosely." | |
| 122 | :group 'mime-security | |
| 123 | :type 'boolean) | |
| 124 | ||
| 125 | (defcustom mml2015-cache-passphrase mml-secure-cache-passphrase | |
| 126 | "If t, cache passphrase." | |
| 127 | :group 'mime-security | |
| 128 | :type 'boolean) | |
| 129 | ||
| 130 | (defcustom mml2015-passphrase-cache-expiry mml-secure-passphrase-cache-expiry | |
| 131 | "How many seconds the passphrase is cached. | |
| 132 | Whether the passphrase is cached at all is controlled by | |
| 133 | `mml2015-cache-passphrase'." | |
| 134 | :group 'mime-security | |
| 135 | :type 'integer) | |
| 136 | ||
| 137 | (defcustom mml2015-signers nil | |
| 138 | "A list of your own key ID which will be used to sign a message." | |
| 139 | :group 'mime-security | |
| 140 | :type '(repeat (string :tag "Key ID"))) | |
| 141 | ||
| 142 | (defcustom mml2015-encrypt-to-self nil | |
| 143 | "If t, add your own key ID to recipient list when encryption." | |
| 144 | :group 'mime-security | |
| 145 | :type 'boolean) | |
| 146 | ||
| 147 | (defcustom mml2015-always-trust t | |
| 148 | "If t, GnuPG skip key validation on encryption." | |
| 149 | :group 'mime-security | |
| 150 | :type 'boolean) | |
| 151 | ||
| 152 | ;; Extract plaintext from cleartext signature. IMO, this kind of task | |
| 153 | ;; should be done by GnuPG rather than Elisp, but older PGP backends | |
| 154 | ;; (such as Mailcrypt, PGG, and gpg.el) discard the output from GnuPG. | |
| 155 | (defun mml2015-extract-cleartext-signature () | |
| 156 | (goto-char (point-min)) | |
| 157 | (forward-line) | |
| 158 | ;; We need to be careful not to strip beyond the armor headers. | |
| 159 | ;; Previously, an attacker could replace the text inside our | |
| 160 | ;; markup with trailing garbage by injecting whitespace into the | |
| 161 | ;; message. | |
| 162 | (while (looking-at "Hash:") ; The only header allowed in cleartext | |
| 163 | (forward-line)) ; signatures according to RFC2440. | |
| 164 | (when (looking-at "[\t ]*$") | |
| 165 | (forward-line)) | |
| 166 | (delete-region (point-min) (point)) | |
| 167 | (if (re-search-forward "^-----BEGIN PGP SIGNATURE-----" nil t) | |
| 168 | (delete-region (match-beginning 0) (point-max))) | |
| 169 | (goto-char (point-min)) | |
| 170 | (while (re-search-forward "^- " nil t) | |
| 171 | (replace-match "" t t) | |
| 172 | (forward-line 1))) | |
| 173 | ||
| 23f87bed MB |
174 | ;;; mailcrypt wrapper |
| 175 | ||
| 176 | (eval-and-compile | |
| 177 | (autoload 'mailcrypt-decrypt "mailcrypt") | |
| 178 | (autoload 'mailcrypt-verify "mailcrypt") | |
| 179 | (autoload 'mc-pgp-always-sign "mailcrypt") | |
| 180 | (autoload 'mc-encrypt-generic "mc-toplev") | |
| 181 | (autoload 'mc-cleanup-recipient-headers "mc-toplev") | |
| 182 | (autoload 'mc-sign-generic "mc-toplev")) | |
| 183 | ||
| 9efa445f DN |
184 | (defvar mc-default-scheme) |
| 185 | (defvar mc-schemes) | |
| 23f87bed MB |
186 | |
| 187 | (defvar mml2015-decrypt-function 'mailcrypt-decrypt) | |
| 188 | (defvar mml2015-verify-function 'mailcrypt-verify) | |
| 189 | ||
| 190 | (defun mml2015-format-error (err) | |
| 191 | (if (stringp (cadr err)) | |
| 192 | (cadr err) | |
| 193 | (format "%S" (cdr err)))) | |
| 194 | ||
| 195 | (defun mml2015-mailcrypt-decrypt (handle ctl) | |
| 196 | (catch 'error | |
| 197 | (let (child handles result) | |
| 198 | (unless (setq child (mm-find-part-by-type | |
| 199 | (cdr handle) | |
| 200 | "application/octet-stream" nil t)) | |
| 201 | (mm-set-handle-multipart-parameter | |
| 202 | mm-security-handle 'gnus-info "Corrupted") | |
| 203 | (throw 'error handle)) | |
| 204 | (with-temp-buffer | |
| 205 | (mm-insert-part child) | |
| 206 | (setq result | |
| 207 | (condition-case err | |
| 208 | (funcall mml2015-decrypt-function) | |
| 209 | (error | |
| 210 | (mm-set-handle-multipart-parameter | |
| 211 | mm-security-handle 'gnus-details (mml2015-format-error err)) | |
| 212 | nil) | |
| 213 | (quit | |
| 214 | (mm-set-handle-multipart-parameter | |
| 215 | mm-security-handle 'gnus-details "Quit.") | |
| 216 | nil))) | |
| 217 | (unless (car result) | |
| 218 | (mm-set-handle-multipart-parameter | |
| 219 | mm-security-handle 'gnus-info "Failed") | |
| 220 | (throw 'error handle)) | |
| 221 | (setq handles (mm-dissect-buffer t))) | |
| 222 | (mm-destroy-parts handle) | |
| 223 | (mm-set-handle-multipart-parameter | |
| 224 | mm-security-handle 'gnus-info | |
| 225 | (concat "OK" | |
| 226 | (let ((sig (with-current-buffer mml2015-result-buffer | |
| 227 | (mml2015-gpg-extract-signature-details)))) | |
| 228 | (concat ", Signer: " sig)))) | |
| 229 | (if (listp (car handles)) | |
| 230 | handles | |
| 231 | (list handles))))) | |
| 232 | ||
| 233 | (defun mml2015-mailcrypt-clear-decrypt () | |
| 234 | (let (result) | |
| 235 | (setq result | |
| 236 | (condition-case err | |
| 237 | (funcall mml2015-decrypt-function) | |
| 238 | (error | |
| 239 | (mm-set-handle-multipart-parameter | |
| 240 | mm-security-handle 'gnus-details (mml2015-format-error err)) | |
| 241 | nil) | |
| 242 | (quit | |
| 243 | (mm-set-handle-multipart-parameter | |
| 244 | mm-security-handle 'gnus-details "Quit.") | |
| 245 | nil))) | |
| 246 | (if (car result) | |
| 247 | (mm-set-handle-multipart-parameter | |
| 248 | mm-security-handle 'gnus-info "OK") | |
| 249 | (mm-set-handle-multipart-parameter | |
| 250 | mm-security-handle 'gnus-info "Failed")))) | |
| 251 | ||
| 252 | (defun mml2015-fix-micalg (alg) | |
| 253 | (and alg | |
| 254 | ;; Mutt/1.2.5i has seen sending micalg=php-sha1 | |
| 255 | (upcase (if (string-match "^p[gh]p-" alg) | |
| 256 | (substring alg (match-end 0)) | |
| 257 | alg)))) | |
| 258 | ||
| 259 | (defun mml2015-mailcrypt-verify (handle ctl) | |
| 260 | (catch 'error | |
| 261 | (let (part) | |
| 262 | (unless (setq part (mm-find-raw-part-by-type | |
| 263 | ctl (or (mm-handle-multipart-ctl-parameter | |
| 264 | ctl 'protocol) | |
| 265 | "application/pgp-signature") | |
| 266 | t)) | |
| 267 | (mm-set-handle-multipart-parameter | |
| 268 | mm-security-handle 'gnus-info "Corrupted") | |
| 269 | (throw 'error handle)) | |
| 270 | (with-temp-buffer | |
| 271 | (insert "-----BEGIN PGP SIGNED MESSAGE-----\n") | |
| 272 | (insert (format "Hash: %s\n\n" | |
| 273 | (or (mml2015-fix-micalg | |
| 274 | (mm-handle-multipart-ctl-parameter | |
| 275 | ctl 'micalg)) | |
| 276 | "SHA1"))) | |
| 277 | (save-restriction | |
| 278 | (narrow-to-region (point) (point)) | |
| 279 | (insert part "\n") | |
| 280 | (goto-char (point-min)) | |
| 281 | (while (not (eobp)) | |
| 282 | (if (looking-at "^-") | |
| 283 | (insert "- ")) | |
| 284 | (forward-line))) | |
| 285 | (unless (setq part (mm-find-part-by-type | |
| 286 | (cdr handle) "application/pgp-signature" nil t)) | |
| 287 | (mm-set-handle-multipart-parameter | |
| 288 | mm-security-handle 'gnus-info "Corrupted") | |
| 289 | (throw 'error handle)) | |
| 290 | (save-restriction | |
| 291 | (narrow-to-region (point) (point)) | |
| 292 | (mm-insert-part part) | |
| 293 | (goto-char (point-min)) | |
| 294 | (if (re-search-forward "^-----BEGIN PGP [^-]+-----\r?$" nil t) | |
| 295 | (replace-match "-----BEGIN PGP SIGNATURE-----" t t)) | |
| 296 | (if (re-search-forward "^-----END PGP [^-]+-----\r?$" nil t) | |
| 297 | (replace-match "-----END PGP SIGNATURE-----" t t))) | |
| 298 | (let ((mc-gpg-debug-buffer (get-buffer-create " *gnus gpg debug*"))) | |
| 299 | (unless (condition-case err | |
| 300 | (prog1 | |
| 301 | (funcall mml2015-verify-function) | |
| 302 | (if (get-buffer " *mailcrypt stderr temp") | |
| 303 | (mm-set-handle-multipart-parameter | |
| 304 | mm-security-handle 'gnus-details | |
| 305 | (with-current-buffer " *mailcrypt stderr temp" | |
| 306 | (buffer-string)))) | |
| 307 | (if (get-buffer " *mailcrypt stdout temp") | |
| 308 | (kill-buffer " *mailcrypt stdout temp")) | |
| 309 | (if (get-buffer " *mailcrypt stderr temp") | |
| 310 | (kill-buffer " *mailcrypt stderr temp")) | |
| 311 | (if (get-buffer " *mailcrypt status temp") | |
| 312 | (kill-buffer " *mailcrypt status temp")) | |
| 313 | (if (get-buffer mc-gpg-debug-buffer) | |
| 314 | (kill-buffer mc-gpg-debug-buffer))) | |
| 315 | (error | |
| 316 | (mm-set-handle-multipart-parameter | |
| 317 | mm-security-handle 'gnus-details (mml2015-format-error err)) | |
| 318 | nil) | |
| 319 | (quit | |
| 320 | (mm-set-handle-multipart-parameter | |
| 321 | mm-security-handle 'gnus-details "Quit.") | |
| 322 | nil)) | |
| 323 | (mm-set-handle-multipart-parameter | |
| 324 | mm-security-handle 'gnus-info "Failed") | |
| 325 | (throw 'error handle)))) | |
| 326 | (mm-set-handle-multipart-parameter | |
| 327 | mm-security-handle 'gnus-info "OK") | |
| 328 | handle))) | |
| 329 | ||
| 330 | (defun mml2015-mailcrypt-clear-verify () | |
| 331 | (let ((mc-gpg-debug-buffer (get-buffer-create " *gnus gpg debug*"))) | |
| 332 | (if (condition-case err | |
| 333 | (prog1 | |
| 334 | (funcall mml2015-verify-function) | |
| 335 | (if (get-buffer " *mailcrypt stderr temp") | |
| 336 | (mm-set-handle-multipart-parameter | |
| 337 | mm-security-handle 'gnus-details | |
| 338 | (with-current-buffer " *mailcrypt stderr temp" | |
| 339 | (buffer-string)))) | |
| 340 | (if (get-buffer " *mailcrypt stdout temp") | |
| 341 | (kill-buffer " *mailcrypt stdout temp")) | |
| 342 | (if (get-buffer " *mailcrypt stderr temp") | |
| 343 | (kill-buffer " *mailcrypt stderr temp")) | |
| 344 | (if (get-buffer " *mailcrypt status temp") | |
| 345 | (kill-buffer " *mailcrypt status temp")) | |
| 346 | (if (get-buffer mc-gpg-debug-buffer) | |
| 347 | (kill-buffer mc-gpg-debug-buffer))) | |
| 348 | (error | |
| 349 | (mm-set-handle-multipart-parameter | |
| 350 | mm-security-handle 'gnus-details (mml2015-format-error err)) | |
| 351 | nil) | |
| 352 | (quit | |
| 353 | (mm-set-handle-multipart-parameter | |
| 354 | mm-security-handle 'gnus-details "Quit.") | |
| 355 | nil)) | |
| 356 | (mm-set-handle-multipart-parameter | |
| 357 | mm-security-handle 'gnus-info "OK") | |
| 358 | (mm-set-handle-multipart-parameter | |
| 01c52d31 MB |
359 | mm-security-handle 'gnus-info "Failed"))) |
| 360 | (mml2015-extract-cleartext-signature)) | |
| 23f87bed MB |
361 | |
| 362 | (defun mml2015-mailcrypt-sign (cont) | |
| 363 | (mc-sign-generic (message-options-get 'message-sender) | |
| 364 | nil nil nil nil) | |
| 365 | (let ((boundary (mml-compute-boundary cont)) | |
| 366 | hash point) | |
| 367 | (goto-char (point-min)) | |
| 368 | (unless (re-search-forward "^-----BEGIN PGP SIGNED MESSAGE-----\r?$" nil t) | |
| 369 | (error "Cannot find signed begin line")) | |
| 370 | (goto-char (match-beginning 0)) | |
| 371 | (forward-line 1) | |
| 372 | (unless (looking-at "Hash:[ \t]*\\([a-zA-Z0-9]+\\)") | |
| 373 | (error "Cannot not find PGP hash")) | |
| 374 | (setq hash (match-string 1)) | |
| 375 | (unless (re-search-forward "^$" nil t) | |
| 376 | (error "Cannot not find PGP message")) | |
| 377 | (forward-line 1) | |
| 378 | (delete-region (point-min) (point)) | |
| 379 | (insert (format "Content-Type: multipart/signed; boundary=\"%s\";\n" | |
| 380 | boundary)) | |
| 381 | (insert (format "\tmicalg=pgp-%s; protocol=\"application/pgp-signature\"\n" | |
| 382 | (downcase hash))) | |
| 383 | (insert (format "\n--%s\n" boundary)) | |
| 384 | (setq point (point)) | |
| 385 | (goto-char (point-max)) | |
| 386 | (unless (re-search-backward "^-----END PGP SIGNATURE-----\r?$" nil t) | |
| 387 | (error "Cannot find signature part")) | |
| 388 | (replace-match "-----END PGP MESSAGE-----" t t) | |
| 389 | (goto-char (match-beginning 0)) | |
| 390 | (unless (re-search-backward "^-----BEGIN PGP SIGNATURE-----\r?$" | |
| 391 | nil t) | |
| 392 | (error "Cannot find signature part")) | |
| 393 | (replace-match "-----BEGIN PGP MESSAGE-----" t t) | |
| 394 | (goto-char (match-beginning 0)) | |
| 395 | (save-restriction | |
| 396 | (narrow-to-region point (point)) | |
| 397 | (goto-char point) | |
| 398 | (while (re-search-forward "^- -" nil t) | |
| 399 | (replace-match "-" t t)) | |
| 400 | (goto-char (point-max))) | |
| 401 | (insert (format "--%s\n" boundary)) | |
| 402 | (insert "Content-Type: application/pgp-signature\n\n") | |
| 403 | (goto-char (point-max)) | |
| 404 | (insert (format "--%s--\n" boundary)) | |
| 405 | (goto-char (point-max)))) | |
| 406 | ||
| 5a12b40c GM |
407 | ;; We require mm-decode, which requires mm-bodies, which autoloads |
| 408 | ;; message-options-get (!). | |
| 409 | (declare-function message-options-set "message" (symbol value)) | |
| 410 | ||
| 23f87bed MB |
411 | (defun mml2015-mailcrypt-encrypt (cont &optional sign) |
| 412 | (let ((mc-pgp-always-sign | |
| 413 | (or mc-pgp-always-sign | |
| 414 | sign | |
| 415 | (eq t (or (message-options-get 'message-sign-encrypt) | |
| 416 | (message-options-set | |
| 417 | 'message-sign-encrypt | |
| 418 | (or (y-or-n-p "Sign the message? ") | |
| 419 | 'not)))) | |
| 420 | 'never))) | |
| 421 | (mm-with-unibyte-current-buffer | |
| 422 | (mc-encrypt-generic | |
| 423 | (or (message-options-get 'message-recipients) | |
| 424 | (message-options-set 'message-recipients | |
| 425 | (mc-cleanup-recipient-headers | |
| 426 | (read-string "Recipients: ")))) | |
| 427 | nil nil nil | |
| 428 | (message-options-get 'message-sender)))) | |
| 429 | (goto-char (point-min)) | |
| 430 | (unless (looking-at "-----BEGIN PGP MESSAGE-----") | |
| 431 | (error "Fail to encrypt the message")) | |
| 432 | (let ((boundary (mml-compute-boundary cont))) | |
| 433 | (insert (format "Content-Type: multipart/encrypted; boundary=\"%s\";\n" | |
| 434 | boundary)) | |
| 435 | (insert "\tprotocol=\"application/pgp-encrypted\"\n\n") | |
| 436 | (insert (format "--%s\n" boundary)) | |
| 437 | (insert "Content-Type: application/pgp-encrypted\n\n") | |
| 438 | (insert "Version: 1\n\n") | |
| 439 | (insert (format "--%s\n" boundary)) | |
| 440 | (insert "Content-Type: application/octet-stream\n\n") | |
| 441 | (goto-char (point-max)) | |
| 442 | (insert (format "--%s--\n" boundary)) | |
| 443 | (goto-char (point-max)))) | |
| 444 | ||
| 445 | ;;; gpg wrapper | |
| 446 | ||
| 447 | (eval-and-compile | |
| 448 | (autoload 'gpg-decrypt "gpg") | |
| 449 | (autoload 'gpg-verify "gpg") | |
| 450 | (autoload 'gpg-verify-cleartext "gpg") | |
| 451 | (autoload 'gpg-sign-detached "gpg") | |
| 452 | (autoload 'gpg-sign-encrypt "gpg") | |
| 453 | (autoload 'gpg-encrypt "gpg") | |
| 454 | (autoload 'gpg-passphrase-read "gpg")) | |
| 455 | ||
| 456 | (defun mml2015-gpg-passphrase () | |
| 457 | (or (message-options-get 'gpg-passphrase) | |
| 458 | (message-options-set 'gpg-passphrase (gpg-passphrase-read)))) | |
| 459 | ||
| 460 | (defun mml2015-gpg-decrypt-1 () | |
| 461 | (let ((cipher (current-buffer)) plain result) | |
| 462 | (if (with-temp-buffer | |
| 463 | (prog1 | |
| 464 | (gpg-decrypt cipher (setq plain (current-buffer)) | |
| 465 | mml2015-result-buffer nil) | |
| 466 | (mm-set-handle-multipart-parameter | |
| 467 | mm-security-handle 'gnus-details | |
| 468 | (with-current-buffer mml2015-result-buffer | |
| 469 | (buffer-string))) | |
| 470 | (set-buffer cipher) | |
| 471 | (erase-buffer) | |
| 472 | (insert-buffer-substring plain) | |
| 473 | (goto-char (point-min)) | |
| 474 | (while (search-forward "\r\n" nil t) | |
| 475 | (replace-match "\n" t t)))) | |
| 476 | '(t) | |
| 477 | ;; Some wrong with the return value, check plain text buffer. | |
| 478 | (if (> (point-max) (point-min)) | |
| 479 | '(t) | |
| 480 | nil)))) | |
| 481 | ||
| 482 | (defun mml2015-gpg-decrypt (handle ctl) | |
| 483 | (let ((mml2015-decrypt-function 'mml2015-gpg-decrypt-1)) | |
| 484 | (mml2015-mailcrypt-decrypt handle ctl))) | |
| 485 | ||
| 486 | (defun mml2015-gpg-clear-decrypt () | |
| 487 | (let (result) | |
| 488 | (setq result (mml2015-gpg-decrypt-1)) | |
| 489 | (if (car result) | |
| 490 | (mm-set-handle-multipart-parameter | |
| 491 | mm-security-handle 'gnus-info "OK") | |
| 492 | (mm-set-handle-multipart-parameter | |
| 493 | mm-security-handle 'gnus-info "Failed")))) | |
| 494 | ||
| 495 | (defun mml2015-gpg-pretty-print-fpr (fingerprint) | |
| 496 | (let* ((result "") | |
| 497 | (fpr-length (string-width fingerprint)) | |
| 498 | (n-slice 0) | |
| 499 | slice) | |
| 500 | (setq fingerprint (string-to-list fingerprint)) | |
| 501 | (while fingerprint | |
| 502 | (setq fpr-length (- fpr-length 4)) | |
| 503 | (setq slice (butlast fingerprint fpr-length)) | |
| 504 | (setq fingerprint (nthcdr 4 fingerprint)) | |
| 505 | (setq n-slice (1+ n-slice)) | |
| 506 | (setq result | |
| 507 | (concat | |
| 508 | result | |
| 509 | (case n-slice | |
| 510 | (1 slice) | |
| 511 | (otherwise (concat " " slice)))))) | |
| 512 | result)) | |
| 513 | ||
| 514 | (defun mml2015-gpg-extract-signature-details () | |
| 515 | (goto-char (point-min)) | |
| 516 | (let* ((expired (re-search-forward | |
| 517 | "^\\[GNUPG:\\] SIGEXPIRED$" | |
| 518 | nil t)) | |
| 519 | (signer (and (re-search-forward | |
| 520 | "^\\[GNUPG:\\] GOODSIG \\([0-9A-Za-z]*\\) \\(.*\\)$" | |
| 521 | nil t) | |
| 522 | (cons (match-string 1) (match-string 2)))) | |
| 523 | (fprint (and (re-search-forward | |
| 524 | "^\\[GNUPG:\\] VALIDSIG \\([0-9a-zA-Z]*\\) " | |
| 525 | nil t) | |
| 526 | (match-string 1))) | |
| 527 | (trust (and (re-search-forward | |
| 528 | "^\\[GNUPG:\\] \\(TRUST_.*\\)$" | |
| 529 | nil t) | |
| 530 | (match-string 1))) | |
| 531 | (trust-good-enough-p | |
| 532 | (cdr (assoc trust mml2015-unabbrev-trust-alist)))) | |
| 533 | (cond ((and signer fprint) | |
| 534 | (concat (cdr signer) | |
| 535 | (unless trust-good-enough-p | |
| 536 | (concat "\nUntrusted, Fingerprint: " | |
| 537 | (mml2015-gpg-pretty-print-fpr fprint))) | |
| 538 | (when expired | |
| 539 | (format "\nWARNING: Signature from expired key (%s)" | |
| 540 | (car signer))))) | |
| 541 | ((re-search-forward | |
| 542 | "^\\(gpg: \\)?Good signature from \"\\(.*\\)\"$" nil t) | |
| 543 | (match-string 2)) | |
| 544 | (t | |
| 545 | "From unknown user")))) | |
| 546 | ||
| 547 | (defun mml2015-gpg-verify (handle ctl) | |
| 548 | (catch 'error | |
| 549 | (let (part message signature info-is-set-p) | |
| 550 | (unless (setq part (mm-find-raw-part-by-type | |
| 551 | ctl (or (mm-handle-multipart-ctl-parameter | |
| 552 | ctl 'protocol) | |
| 553 | "application/pgp-signature") | |
| 554 | t)) | |
| 555 | (mm-set-handle-multipart-parameter | |
| 556 | mm-security-handle 'gnus-info "Corrupted") | |
| 557 | (throw 'error handle)) | |
| 558 | (with-temp-buffer | |
| 559 | (setq message (current-buffer)) | |
| 560 | (insert part) | |
| 01c52d31 MB |
561 | ;; Convert <LF> to <CR><LF> in signed text. If --textmode is |
| 562 | ;; specified when signing, the conversion is not necessary. | |
| 23f87bed MB |
563 | (goto-char (point-min)) |
| 564 | (end-of-line) | |
| 565 | (while (not (eobp)) | |
| 566 | (unless (eq (char-before) ?\r) | |
| 567 | (insert "\r")) | |
| 568 | (forward-line) | |
| 569 | (end-of-line)) | |
| 570 | (with-temp-buffer | |
| 571 | (setq signature (current-buffer)) | |
| 572 | (unless (setq part (mm-find-part-by-type | |
| 573 | (cdr handle) "application/pgp-signature" nil t)) | |
| 574 | (mm-set-handle-multipart-parameter | |
| 575 | mm-security-handle 'gnus-info "Corrupted") | |
| 576 | (throw 'error handle)) | |
| 577 | (mm-insert-part part) | |
| 578 | (unless (condition-case err | |
| 579 | (prog1 | |
| 580 | (gpg-verify message signature mml2015-result-buffer) | |
| 581 | (mm-set-handle-multipart-parameter | |
| 582 | mm-security-handle 'gnus-details | |
| 583 | (with-current-buffer mml2015-result-buffer | |
| 584 | (buffer-string)))) | |
| 585 | (error | |
| 586 | (mm-set-handle-multipart-parameter | |
| 587 | mm-security-handle 'gnus-details (mml2015-format-error err)) | |
| 588 | (mm-set-handle-multipart-parameter | |
| 589 | mm-security-handle 'gnus-info "Error.") | |
| 590 | (setq info-is-set-p t) | |
| 591 | nil) | |
| 592 | (quit | |
| 593 | (mm-set-handle-multipart-parameter | |
| 594 | mm-security-handle 'gnus-details "Quit.") | |
| 595 | (mm-set-handle-multipart-parameter | |
| 596 | mm-security-handle 'gnus-info "Quit.") | |
| 597 | (setq info-is-set-p t) | |
| 598 | nil)) | |
| 599 | (unless info-is-set-p | |
| 600 | (mm-set-handle-multipart-parameter | |
| 601 | mm-security-handle 'gnus-info "Failed")) | |
| 602 | (throw 'error handle))) | |
| 603 | (mm-set-handle-multipart-parameter | |
| 604 | mm-security-handle 'gnus-info | |
| 605 | (with-current-buffer mml2015-result-buffer | |
| 606 | (mml2015-gpg-extract-signature-details)))) | |
| 607 | handle))) | |
| 608 | ||
| 609 | (defun mml2015-gpg-clear-verify () | |
| 610 | (if (condition-case err | |
| 611 | (prog1 | |
| 612 | (gpg-verify-cleartext (current-buffer) mml2015-result-buffer) | |
| 613 | (mm-set-handle-multipart-parameter | |
| 614 | mm-security-handle 'gnus-details | |
| 615 | (with-current-buffer mml2015-result-buffer | |
| 616 | (buffer-string)))) | |
| 617 | (error | |
| 618 | (mm-set-handle-multipart-parameter | |
| 619 | mm-security-handle 'gnus-details (mml2015-format-error err)) | |
| 620 | nil) | |
| 621 | (quit | |
| 622 | (mm-set-handle-multipart-parameter | |
| 623 | mm-security-handle 'gnus-details "Quit.") | |
| 624 | nil)) | |
| 625 | (mm-set-handle-multipart-parameter | |
| 626 | mm-security-handle 'gnus-info | |
| 627 | (with-current-buffer mml2015-result-buffer | |
| 628 | (mml2015-gpg-extract-signature-details))) | |
| 629 | (mm-set-handle-multipart-parameter | |
| 01c52d31 MB |
630 | mm-security-handle 'gnus-info "Failed")) |
| 631 | (mml2015-extract-cleartext-signature)) | |
| 23f87bed MB |
632 | |
| 633 | (defun mml2015-gpg-sign (cont) | |
| 634 | (let ((boundary (mml-compute-boundary cont)) | |
| 635 | (text (current-buffer)) signature) | |
| 636 | (goto-char (point-max)) | |
| 637 | (unless (bolp) | |
| 638 | (insert "\n")) | |
| 639 | (with-temp-buffer | |
| 640 | (unless (gpg-sign-detached text (setq signature (current-buffer)) | |
| 641 | mml2015-result-buffer | |
| 642 | nil | |
| 643 | (message-options-get 'message-sender) | |
| 644 | t t) ; armor & textmode | |
| 645 | (unless (> (point-max) (point-min)) | |
| 646 | (pop-to-buffer mml2015-result-buffer) | |
| 647 | (error "Sign error"))) | |
| 648 | (goto-char (point-min)) | |
| 649 | (while (re-search-forward "\r+$" nil t) | |
| 650 | (replace-match "" t t)) | |
| 651 | (set-buffer text) | |
| 652 | (goto-char (point-min)) | |
| 653 | (insert (format "Content-Type: multipart/signed; boundary=\"%s\";\n" | |
| 654 | boundary)) | |
| 655 | ;;; FIXME: what is the micalg? | |
| 656 | (insert "\tmicalg=pgp-sha1; protocol=\"application/pgp-signature\"\n") | |
| 657 | (insert (format "\n--%s\n" boundary)) | |
| 658 | (goto-char (point-max)) | |
| 659 | (insert (format "\n--%s\n" boundary)) | |
| 660 | (insert "Content-Type: application/pgp-signature\n\n") | |
| 661 | (insert-buffer-substring signature) | |
| 662 | (goto-char (point-max)) | |
| 663 | (insert (format "--%s--\n" boundary)) | |
| 664 | (goto-char (point-max))))) | |
| 665 | ||
| 666 | (defun mml2015-gpg-encrypt (cont &optional sign) | |
| 667 | (let ((boundary (mml-compute-boundary cont)) | |
| 668 | (text (current-buffer)) | |
| 669 | cipher) | |
| 670 | (mm-with-unibyte-current-buffer | |
| 671 | (with-temp-buffer | |
| 672 | ;; set up a function to call the correct gpg encrypt routine | |
| 673 | ;; with the right arguments. (FIXME: this should be done | |
| 674 | ;; differently.) | |
| bf247b6e | 675 | (flet ((gpg-encrypt-func |
| 23f87bed MB |
676 | (sign plaintext ciphertext result recipients &optional |
| 677 | passphrase sign-with-key armor textmode) | |
| 678 | (if sign | |
| 679 | (gpg-sign-encrypt | |
| 680 | plaintext ciphertext result recipients passphrase | |
| 681 | sign-with-key armor textmode) | |
| 682 | (gpg-encrypt | |
| 683 | plaintext ciphertext result recipients passphrase | |
| 684 | armor textmode)))) | |
| 685 | (unless (gpg-encrypt-func | |
| 686 | sign ; passed in when using signencrypt | |
| 687 | text (setq cipher (current-buffer)) | |
| 688 | mml2015-result-buffer | |
| 689 | (split-string | |
| 690 | (or | |
| 691 | (message-options-get 'message-recipients) | |
| 692 | (message-options-set 'message-recipients | |
| 693 | (read-string "Recipients: "))) | |
| 694 | "[ \f\t\n\r\v,]+") | |
| 695 | nil | |
| 696 | (message-options-get 'message-sender) | |
| 697 | t t) ; armor & textmode | |
| 698 | (unless (> (point-max) (point-min)) | |
| 699 | (pop-to-buffer mml2015-result-buffer) | |
| 700 | (error "Encrypt error")))) | |
| 701 | (goto-char (point-min)) | |
| 702 | (while (re-search-forward "\r+$" nil t) | |
| 703 | (replace-match "" t t)) | |
| 704 | (set-buffer text) | |
| 705 | (delete-region (point-min) (point-max)) | |
| 706 | (insert (format "Content-Type: multipart/encrypted; boundary=\"%s\";\n" | |
| 707 | boundary)) | |
| 708 | (insert "\tprotocol=\"application/pgp-encrypted\"\n\n") | |
| 709 | (insert (format "--%s\n" boundary)) | |
| 710 | (insert "Content-Type: application/pgp-encrypted\n\n") | |
| 711 | (insert "Version: 1\n\n") | |
| 712 | (insert (format "--%s\n" boundary)) | |
| 713 | (insert "Content-Type: application/octet-stream\n\n") | |
| 714 | (insert-buffer-substring cipher) | |
| 715 | (goto-char (point-max)) | |
| 716 | (insert (format "--%s--\n" boundary)) | |
| 717 | (goto-char (point-max)))))) | |
| 718 | ||
| 719 | ;;; pgg wrapper | |
| 720 | ||
| 9efa445f DN |
721 | (defvar pgg-default-user-id) |
| 722 | (defvar pgg-errors-buffer) | |
| 723 | (defvar pgg-output-buffer) | |
| 23f87bed MB |
724 | |
| 725 | (eval-and-compile | |
| 726 | (autoload 'pgg-decrypt-region "pgg") | |
| 727 | (autoload 'pgg-verify-region "pgg") | |
| 728 | (autoload 'pgg-sign-region "pgg") | |
| bcc7dd61 MB |
729 | (autoload 'pgg-encrypt-region "pgg") |
| 730 | (autoload 'pgg-parse-armor "pgg-parse")) | |
| 23f87bed MB |
731 | |
| 732 | (defun mml2015-pgg-decrypt (handle ctl) | |
| 733 | (catch 'error | |
| 734 | (let ((pgg-errors-buffer mml2015-result-buffer) | |
| 735 | child handles result decrypt-status) | |
| 736 | (unless (setq child (mm-find-part-by-type | |
| 737 | (cdr handle) | |
| 738 | "application/octet-stream" nil t)) | |
| 739 | (mm-set-handle-multipart-parameter | |
| 740 | mm-security-handle 'gnus-info "Corrupted") | |
| 741 | (throw 'error handle)) | |
| 742 | (with-temp-buffer | |
| 743 | (mm-insert-part child) | |
| 744 | (if (condition-case err | |
| 745 | (prog1 | |
| 746 | (pgg-decrypt-region (point-min) (point-max)) | |
| bf247b6e | 747 | (setq decrypt-status |
| 23f87bed MB |
748 | (with-current-buffer mml2015-result-buffer |
| 749 | (buffer-string))) | |
| 750 | (mm-set-handle-multipart-parameter | |
| 751 | mm-security-handle 'gnus-details | |
| 752 | decrypt-status)) | |
| 753 | (error | |
| 754 | (mm-set-handle-multipart-parameter | |
| 755 | mm-security-handle 'gnus-details (mml2015-format-error err)) | |
| 756 | nil) | |
| 757 | (quit | |
| 758 | (mm-set-handle-multipart-parameter | |
| 759 | mm-security-handle 'gnus-details "Quit.") | |
| 760 | nil)) | |
| 761 | (with-current-buffer pgg-output-buffer | |
| 762 | (goto-char (point-min)) | |
| 763 | (while (search-forward "\r\n" nil t) | |
| 764 | (replace-match "\n" t t)) | |
| 765 | (setq handles (mm-dissect-buffer t)) | |
| 766 | (mm-destroy-parts handle) | |
| 767 | (mm-set-handle-multipart-parameter | |
| 768 | mm-security-handle 'gnus-info "OK") | |
| 769 | (mm-set-handle-multipart-parameter | |
| 770 | mm-security-handle 'gnus-details | |
| 771 | (concat decrypt-status | |
| 772 | (when (stringp (car handles)) | |
| 773 | "\n" (mm-handle-multipart-ctl-parameter | |
| 774 | handles 'gnus-details)))) | |
| 775 | (if (listp (car handles)) | |
| 776 | handles | |
| 777 | (list handles))) | |
| 778 | (mm-set-handle-multipart-parameter | |
| 779 | mm-security-handle 'gnus-info "Failed") | |
| 780 | (throw 'error handle)))))) | |
| 781 | ||
| 782 | (defun mml2015-pgg-clear-decrypt () | |
| 783 | (let ((pgg-errors-buffer mml2015-result-buffer)) | |
| 784 | (if (prog1 | |
| 785 | (pgg-decrypt-region (point-min) (point-max)) | |
| 786 | (mm-set-handle-multipart-parameter | |
| 787 | mm-security-handle 'gnus-details | |
| 788 | (with-current-buffer mml2015-result-buffer | |
| 789 | (buffer-string)))) | |
| 790 | (progn | |
| 791 | (erase-buffer) | |
| 9606f1cb MB |
792 | ;; Treat data which pgg returns as a unibyte string. |
| 793 | (mm-disable-multibyte) | |
| 23f87bed MB |
794 | (insert-buffer-substring pgg-output-buffer) |
| 795 | (goto-char (point-min)) | |
| 796 | (while (search-forward "\r\n" nil t) | |
| 797 | (replace-match "\n" t t)) | |
| 798 | (mm-set-handle-multipart-parameter | |
| 799 | mm-security-handle 'gnus-info "OK")) | |
| 800 | (mm-set-handle-multipart-parameter | |
| 801 | mm-security-handle 'gnus-info "Failed")))) | |
| 802 | ||
| 803 | (defun mml2015-pgg-verify (handle ctl) | |
| 804 | (let ((pgg-errors-buffer mml2015-result-buffer) | |
| 805 | signature-file part signature) | |
| 806 | (if (or (null (setq part (mm-find-raw-part-by-type | |
| 807 | ctl (or (mm-handle-multipart-ctl-parameter | |
| 808 | ctl 'protocol) | |
| 809 | "application/pgp-signature") | |
| 810 | t))) | |
| 811 | (null (setq signature (mm-find-part-by-type | |
| 812 | (cdr handle) "application/pgp-signature" nil t)))) | |
| 813 | (progn | |
| 814 | (mm-set-handle-multipart-parameter | |
| 815 | mm-security-handle 'gnus-info "Corrupted") | |
| 816 | handle) | |
| 817 | (with-temp-buffer | |
| 818 | (insert part) | |
| 01c52d31 MB |
819 | ;; Convert <LF> to <CR><LF> in signed text. If --textmode is |
| 820 | ;; specified when signing, the conversion is not necessary. | |
| 23f87bed MB |
821 | (goto-char (point-min)) |
| 822 | (end-of-line) | |
| 823 | (while (not (eobp)) | |
| 824 | (unless (eq (char-before) ?\r) | |
| 825 | (insert "\r")) | |
| 826 | (forward-line) | |
| 827 | (end-of-line)) | |
| 828 | (with-temp-file (setq signature-file (mm-make-temp-file "pgg")) | |
| 829 | (mm-insert-part signature)) | |
| 830 | (if (condition-case err | |
| 831 | (prog1 | |
| bf247b6e | 832 | (pgg-verify-region (point-min) (point-max) |
| 23f87bed MB |
833 | signature-file t) |
| 834 | (goto-char (point-min)) | |
| 835 | (while (search-forward "\r\n" nil t) | |
| 836 | (replace-match "\n" t t)) | |
| 837 | (mm-set-handle-multipart-parameter | |
| 838 | mm-security-handle 'gnus-details | |
| 839 | (concat (with-current-buffer pgg-output-buffer | |
| 840 | (buffer-string)) | |
| 841 | (with-current-buffer pgg-errors-buffer | |
| 842 | (buffer-string))))) | |
| 843 | (error | |
| 844 | (mm-set-handle-multipart-parameter | |
| 845 | mm-security-handle 'gnus-details (mml2015-format-error err)) | |
| 846 | nil) | |
| 847 | (quit | |
| 848 | (mm-set-handle-multipart-parameter | |
| 849 | mm-security-handle 'gnus-details "Quit.") | |
| 850 | nil)) | |
| 851 | (progn | |
| 852 | (delete-file signature-file) | |
| 853 | (mm-set-handle-multipart-parameter | |
| 854 | mm-security-handle 'gnus-info | |
| 855 | (with-current-buffer pgg-errors-buffer | |
| 856 | (mml2015-gpg-extract-signature-details)))) | |
| 857 | (delete-file signature-file) | |
| 858 | (mm-set-handle-multipart-parameter | |
| 859 | mm-security-handle 'gnus-info "Failed"))))) | |
| 860 | handle) | |
| 861 | ||
| 862 | (defun mml2015-pgg-clear-verify () | |
| 863 | (let ((pgg-errors-buffer mml2015-result-buffer) | |
| 864 | (text (buffer-string)) | |
| 865 | (coding-system buffer-file-coding-system)) | |
| 866 | (if (condition-case err | |
| 867 | (prog1 | |
| 868 | (mm-with-unibyte-buffer | |
| 5538c331 | 869 | (insert (mm-encode-coding-string text coding-system)) |
| 23f87bed MB |
870 | (pgg-verify-region (point-min) (point-max) nil t)) |
| 871 | (goto-char (point-min)) | |
| 872 | (while (search-forward "\r\n" nil t) | |
| 873 | (replace-match "\n" t t)) | |
| 874 | (mm-set-handle-multipart-parameter | |
| 875 | mm-security-handle 'gnus-details | |
| 876 | (concat (with-current-buffer pgg-output-buffer | |
| 877 | (buffer-string)) | |
| 878 | (with-current-buffer pgg-errors-buffer | |
| 879 | (buffer-string))))) | |
| 880 | (error | |
| 881 | (mm-set-handle-multipart-parameter | |
| 882 | mm-security-handle 'gnus-details (mml2015-format-error err)) | |
| 883 | nil) | |
| 884 | (quit | |
| 885 | (mm-set-handle-multipart-parameter | |
| 886 | mm-security-handle 'gnus-details "Quit.") | |
| 887 | nil)) | |
| 888 | (mm-set-handle-multipart-parameter | |
| 889 | mm-security-handle 'gnus-info | |
| 890 | (with-current-buffer pgg-errors-buffer | |
| 891 | (mml2015-gpg-extract-signature-details))) | |
| 892 | (mm-set-handle-multipart-parameter | |
| 01c52d31 MB |
893 | mm-security-handle 'gnus-info "Failed"))) |
| 894 | (mml2015-extract-cleartext-signature)) | |
| 23f87bed MB |
895 | |
| 896 | (defun mml2015-pgg-sign (cont) | |
| 897 | (let ((pgg-errors-buffer mml2015-result-buffer) | |
| 898 | (boundary (mml-compute-boundary cont)) | |
| 899 | (pgg-default-user-id (or (message-options-get 'mml-sender) | |
| bcc7dd61 | 900 | pgg-default-user-id)) |
| 34128042 | 901 | (pgg-text-mode t) |
| bcc7dd61 | 902 | entry) |
| 23f87bed MB |
903 | (unless (pgg-sign-region (point-min) (point-max)) |
| 904 | (pop-to-buffer mml2015-result-buffer) | |
| 905 | (error "Sign error")) | |
| 906 | (goto-char (point-min)) | |
| 907 | (insert (format "Content-Type: multipart/signed; boundary=\"%s\";\n" | |
| 908 | boundary)) | |
| bcc7dd61 MB |
909 | (if (setq entry (assq 2 (pgg-parse-armor |
| 910 | (with-current-buffer pgg-output-buffer | |
| 911 | (buffer-string))))) | |
| 912 | (setq entry (assq 'hash-algorithm (cdr entry)))) | |
| 913 | (insert (format "\tmicalg=%s; " | |
| 914 | (if (cdr entry) | |
| 915 | (downcase (format "pgp-%s" (cdr entry))) | |
| 916 | "pgp-sha1"))) | |
| 917 | (insert "protocol=\"application/pgp-signature\"\n") | |
| 23f87bed MB |
918 | (insert (format "\n--%s\n" boundary)) |
| 919 | (goto-char (point-max)) | |
| 920 | (insert (format "\n--%s\n" boundary)) | |
| 921 | (insert "Content-Type: application/pgp-signature\n\n") | |
| 922 | (insert-buffer-substring pgg-output-buffer) | |
| 923 | (goto-char (point-max)) | |
| 924 | (insert (format "--%s--\n" boundary)) | |
| 925 | (goto-char (point-max)))) | |
| 926 | ||
| 927 | (defun mml2015-pgg-encrypt (cont &optional sign) | |
| 928 | (let ((pgg-errors-buffer mml2015-result-buffer) | |
| 34128042 | 929 | (pgg-text-mode t) |
| 23f87bed MB |
930 | (boundary (mml-compute-boundary cont))) |
| 931 | (unless (pgg-encrypt-region (point-min) (point-max) | |
| 932 | (split-string | |
| 933 | (or | |
| 934 | (message-options-get 'message-recipients) | |
| 935 | (message-options-set 'message-recipients | |
| 936 | (read-string "Recipients: "))) | |
| 937 | "[ \f\t\n\r\v,]+") | |
| 938 | sign) | |
| 939 | (pop-to-buffer mml2015-result-buffer) | |
| 940 | (error "Encrypt error")) | |
| 941 | (delete-region (point-min) (point-max)) | |
| 942 | (goto-char (point-min)) | |
| 943 | (insert (format "Content-Type: multipart/encrypted; boundary=\"%s\";\n" | |
| 944 | boundary)) | |
| 945 | (insert "\tprotocol=\"application/pgp-encrypted\"\n\n") | |
| 946 | (insert (format "--%s\n" boundary)) | |
| 947 | (insert "Content-Type: application/pgp-encrypted\n\n") | |
| 948 | (insert "Version: 1\n\n") | |
| 949 | (insert (format "--%s\n" boundary)) | |
| 950 | (insert "Content-Type: application/octet-stream\n\n") | |
| 951 | (insert-buffer-substring pgg-output-buffer) | |
| 952 | (goto-char (point-max)) | |
| 953 | (insert (format "--%s--\n" boundary)) | |
| 954 | (goto-char (point-max)))) | |
| 955 | ||
| 01c52d31 MB |
956 | ;;; epg wrapper |
| 957 | ||
| 9efa445f DN |
958 | (defvar epg-user-id-alist) |
| 959 | (defvar epg-digest-algorithm-alist) | |
| 960 | (defvar inhibit-redisplay) | |
| 01c52d31 | 961 | |
| 9efa445f DN |
962 | (eval-and-compile |
| 963 | (autoload 'epg-make-context "epg") | |
| 01c52d31 MB |
964 | (autoload 'epg-context-set-armor "epg") |
| 965 | (autoload 'epg-context-set-textmode "epg") | |
| 966 | (autoload 'epg-context-set-signers "epg") | |
| 967 | (autoload 'epg-context-result-for "epg") | |
| 968 | (autoload 'epg-new-signature-digest-algorithm "epg") | |
| 969 | (autoload 'epg-verify-result-to-string "epg") | |
| 970 | (autoload 'epg-list-keys "epg") | |
| 971 | (autoload 'epg-decrypt-string "epg") | |
| 972 | (autoload 'epg-verify-string "epg") | |
| 973 | (autoload 'epg-sign-string "epg") | |
| 974 | (autoload 'epg-encrypt-string "epg") | |
| 975 | (autoload 'epg-passphrase-callback-function "epg") | |
| 976 | (autoload 'epg-context-set-passphrase-callback "epg") | |
| 977 | (autoload 'epg-key-sub-key-list "epg") | |
| 978 | (autoload 'epg-sub-key-capability "epg") | |
| 979 | (autoload 'epg-sub-key-validity "epg") | |
| 980 | (autoload 'epg-configuration "epg-config") | |
| 981 | (autoload 'epg-expand-group "epg-config") | |
| 982 | (autoload 'epa-select-keys "epa")) | |
| 983 | ||
| 9efa445f DN |
984 | (defvar password-cache-expiry) |
| 985 | ||
| 01c52d31 MB |
986 | (defvar mml2015-epg-secret-key-id-list nil) |
| 987 | ||
| 988 | (defun mml2015-epg-passphrase-callback (context key-id ignore) | |
| 989 | (if (eq key-id 'SYM) | |
| 990 | (epg-passphrase-callback-function context key-id nil) | |
| 991 | (let* (entry | |
| 992 | (passphrase | |
| 993 | (password-read | |
| 994 | (if (eq key-id 'PIN) | |
| 995 | "Passphrase for PIN: " | |
| 996 | (if (setq entry (assoc key-id epg-user-id-alist)) | |
| 997 | (format "Passphrase for %s %s: " key-id (cdr entry)) | |
| 998 | (format "Passphrase for %s: " key-id))) | |
| 999 | (if (eq key-id 'PIN) | |
| 1000 | "PIN" | |
| 1001 | key-id)))) | |
| 1002 | (when passphrase | |
| 1003 | (let ((password-cache-expiry mml2015-passphrase-cache-expiry)) | |
| 1004 | (password-cache-add key-id passphrase)) | |
| 1005 | (setq mml2015-epg-secret-key-id-list | |
| 1006 | (cons key-id mml2015-epg-secret-key-id-list)) | |
| 1007 | (copy-sequence passphrase))))) | |
| 1008 | ||
| 1009 | (defun mml2015-epg-find-usable-key (keys usage) | |
| 1010 | (catch 'found | |
| 1011 | (while keys | |
| 1012 | (let ((pointer (epg-key-sub-key-list (car keys)))) | |
| 1013 | (while pointer | |
| 1014 | (if (and (memq usage (epg-sub-key-capability (car pointer))) | |
| 1015 | (not (memq (epg-sub-key-validity (car pointer)) | |
| 1016 | '(revoked expired)))) | |
| 1017 | (throw 'found (car keys))) | |
| 1018 | (setq pointer (cdr pointer)))) | |
| 1019 | (setq keys (cdr keys))))) | |
| 1020 | ||
| 1021 | (defun mml2015-epg-decrypt (handle ctl) | |
| 1022 | (catch 'error | |
| 1023 | (let ((inhibit-redisplay t) | |
| 1024 | context plain child handles result decrypt-status) | |
| 1025 | (unless (setq child (mm-find-part-by-type | |
| 1026 | (cdr handle) | |
| 1027 | "application/octet-stream" nil t)) | |
| 1028 | (mm-set-handle-multipart-parameter | |
| 1029 | mm-security-handle 'gnus-info "Corrupted") | |
| 1030 | (throw 'error handle)) | |
| 1031 | (setq context (epg-make-context)) | |
| 1032 | (if mml2015-cache-passphrase | |
| 1033 | (epg-context-set-passphrase-callback | |
| 1034 | context | |
| 1035 | #'mml2015-epg-passphrase-callback)) | |
| 1036 | (condition-case error | |
| 1037 | (setq plain (epg-decrypt-string context (mm-get-part child)) | |
| 1038 | mml2015-epg-secret-key-id-list nil) | |
| 1039 | (error | |
| 1040 | (while mml2015-epg-secret-key-id-list | |
| 1041 | (password-cache-remove (car mml2015-epg-secret-key-id-list)) | |
| 1042 | (setq mml2015-epg-secret-key-id-list | |
| 1043 | (cdr mml2015-epg-secret-key-id-list))) | |
| 1044 | (mm-set-handle-multipart-parameter | |
| 1045 | mm-security-handle 'gnus-info "Failed") | |
| 1046 | (if (eq (car error) 'quit) | |
| 1047 | (mm-set-handle-multipart-parameter | |
| 1048 | mm-security-handle 'gnus-details "Quit.") | |
| 1049 | (mm-set-handle-multipart-parameter | |
| 1050 | mm-security-handle 'gnus-details (mml2015-format-error error))) | |
| 1051 | (throw 'error handle))) | |
| 1052 | (with-temp-buffer | |
| 1053 | (insert plain) | |
| 1054 | (goto-char (point-min)) | |
| 1055 | (while (search-forward "\r\n" nil t) | |
| 1056 | (replace-match "\n" t t)) | |
| 1057 | (setq handles (mm-dissect-buffer t)) | |
| 1058 | (mm-destroy-parts handle) | |
| 1059 | (if (epg-context-result-for context 'verify) | |
| 1060 | (mm-set-handle-multipart-parameter | |
| 1061 | mm-security-handle 'gnus-info | |
| 1062 | (concat "OK\n" | |
| 1063 | (epg-verify-result-to-string | |
| 1064 | (epg-context-result-for context 'verify)))) | |
| 1065 | (mm-set-handle-multipart-parameter | |
| 1066 | mm-security-handle 'gnus-info "OK")) | |
| 1067 | (if (stringp (car handles)) | |
| 1068 | (mm-set-handle-multipart-parameter | |
| 1069 | mm-security-handle 'gnus-details | |
| 1070 | (mm-handle-multipart-ctl-parameter handles 'gnus-details)))) | |
| 1071 | (if (listp (car handles)) | |
| 1072 | handles | |
| 1073 | (list handles))))) | |
| 1074 | ||
| 1075 | (defun mml2015-epg-clear-decrypt () | |
| 1076 | (let ((inhibit-redisplay t) | |
| 1077 | (context (epg-make-context)) | |
| 1078 | plain) | |
| 1079 | (if mml2015-cache-passphrase | |
| 1080 | (epg-context-set-passphrase-callback | |
| 1081 | context | |
| 1082 | #'mml2015-epg-passphrase-callback)) | |
| 1083 | (condition-case error | |
| 1084 | (setq plain (epg-decrypt-string context (buffer-string)) | |
| 1085 | mml2015-epg-secret-key-id-list nil) | |
| 1086 | (error | |
| 1087 | (while mml2015-epg-secret-key-id-list | |
| 1088 | (password-cache-remove (car mml2015-epg-secret-key-id-list)) | |
| 1089 | (setq mml2015-epg-secret-key-id-list | |
| 1090 | (cdr mml2015-epg-secret-key-id-list))) | |
| 1091 | (mm-set-handle-multipart-parameter | |
| 1092 | mm-security-handle 'gnus-info "Failed") | |
| 1093 | (if (eq (car error) 'quit) | |
| 1094 | (mm-set-handle-multipart-parameter | |
| 1095 | mm-security-handle 'gnus-details "Quit.") | |
| 1096 | (mm-set-handle-multipart-parameter | |
| 1097 | mm-security-handle 'gnus-details (mml2015-format-error error))))) | |
| 1098 | (when plain | |
| 1099 | (erase-buffer) | |
| 1100 | ;; Treat data which epg returns as a unibyte string. | |
| 1101 | (mm-disable-multibyte) | |
| 1102 | (insert plain) | |
| 1103 | (goto-char (point-min)) | |
| 1104 | (while (search-forward "\r\n" nil t) | |
| 1105 | (replace-match "\n" t t)) | |
| 1106 | (mm-set-handle-multipart-parameter | |
| 1107 | mm-security-handle 'gnus-info "OK") | |
| 1108 | (if (epg-context-result-for context 'verify) | |
| 1109 | (mm-set-handle-multipart-parameter | |
| 1110 | mm-security-handle 'gnus-details | |
| 1111 | (epg-verify-result-to-string | |
| 1112 | (epg-context-result-for context 'verify))))))) | |
| 1113 | ||
| 1114 | (defun mml2015-epg-verify (handle ctl) | |
| 1115 | (catch 'error | |
| 1116 | (let ((inhibit-redisplay t) | |
| 1117 | context plain signature-file part signature) | |
| 1118 | (when (or (null (setq part (mm-find-raw-part-by-type | |
| 1119 | ctl (or (mm-handle-multipart-ctl-parameter | |
| 1120 | ctl 'protocol) | |
| 1121 | "application/pgp-signature") | |
| 1122 | t))) | |
| 1123 | (null (setq signature (mm-find-part-by-type | |
| 1124 | (cdr handle) "application/pgp-signature" | |
| 1125 | nil t)))) | |
| 1126 | (mm-set-handle-multipart-parameter | |
| 1127 | mm-security-handle 'gnus-info "Corrupted") | |
| 1128 | (throw 'error handle)) | |
| 1129 | (setq part (mm-replace-in-string part "\n" "\r\n" t) | |
| 1130 | signature (mm-get-part signature) | |
| 1131 | context (epg-make-context)) | |
| 1132 | (condition-case error | |
| 1133 | (setq plain (epg-verify-string context signature part)) | |
| 1134 | (error | |
| 1135 | (mm-set-handle-multipart-parameter | |
| 1136 | mm-security-handle 'gnus-info "Failed") | |
| 1137 | (if (eq (car error) 'quit) | |
| 1138 | (mm-set-handle-multipart-parameter | |
| 1139 | mm-security-handle 'gnus-details "Quit.") | |
| 1140 | (mm-set-handle-multipart-parameter | |
| 1141 | mm-security-handle 'gnus-details (mml2015-format-error error))) | |
| 1142 | (throw 'error handle))) | |
| 1143 | (mm-set-handle-multipart-parameter | |
| 1144 | mm-security-handle 'gnus-info | |
| 1145 | (epg-verify-result-to-string (epg-context-result-for context 'verify))) | |
| 1146 | handle))) | |
| 1147 | ||
| 1148 | (defun mml2015-epg-clear-verify () | |
| 1149 | (let ((inhibit-redisplay t) | |
| 1150 | (context (epg-make-context)) | |
| 1151 | (signature (mm-encode-coding-string (buffer-string) | |
| 1152 | coding-system-for-write)) | |
| 1153 | plain) | |
| 1154 | (condition-case error | |
| 1155 | (setq plain (epg-verify-string context signature)) | |
| 1156 | (error | |
| 1157 | (mm-set-handle-multipart-parameter | |
| 1158 | mm-security-handle 'gnus-info "Failed") | |
| 1159 | (if (eq (car error) 'quit) | |
| 1160 | (mm-set-handle-multipart-parameter | |
| 1161 | mm-security-handle 'gnus-details "Quit.") | |
| 1162 | (mm-set-handle-multipart-parameter | |
| 1163 | mm-security-handle 'gnus-details (mml2015-format-error error))))) | |
| 1164 | (if plain | |
| 1165 | (progn | |
| 1166 | (mm-set-handle-multipart-parameter | |
| 1167 | mm-security-handle 'gnus-info | |
| 1168 | (epg-verify-result-to-string | |
| 1169 | (epg-context-result-for context 'verify))) | |
| 1170 | (delete-region (point-min) (point-max)) | |
| 1171 | (insert (mm-decode-coding-string plain coding-system-for-read))) | |
| 1172 | (mml2015-extract-cleartext-signature)))) | |
| 1173 | ||
| 1174 | (defun mml2015-epg-sign (cont) | |
| 1175 | (let* ((inhibit-redisplay t) | |
| 1176 | (context (epg-make-context)) | |
| 1177 | (boundary (mml-compute-boundary cont)) | |
| 1178 | signer-key | |
| 1179 | (signers | |
| 1180 | (or (message-options-get 'mml2015-epg-signers) | |
| 1181 | (message-options-set | |
| 1182 | 'mml2015-epg-signers | |
| 1183 | (if mml2015-verbose | |
| 1184 | (epa-select-keys context "\ | |
| 1185 | Select keys for signing. | |
| 1186 | If no one is selected, default secret key is used. " | |
| 1187 | mml2015-signers t) | |
| 1188 | (if mml2015-signers | |
| 1189 | (mapcar | |
| 1190 | (lambda (signer) | |
| 1191 | (setq signer-key (mml2015-epg-find-usable-key | |
| 1192 | (epg-list-keys context signer t) | |
| 1193 | 'sign)) | |
| 1194 | (unless (or signer-key | |
| 1195 | (y-or-n-p | |
| 1196 | (format "No secret key for %s; skip it? " | |
| 1197 | signer))) | |
| 1198 | (error "No secret key for %s" signer)) | |
| 1199 | signer-key) | |
| 1200 | mml2015-signers)))))) | |
| 1201 | signature micalg) | |
| 1202 | (epg-context-set-armor context t) | |
| 1203 | (epg-context-set-textmode context t) | |
| 1204 | (epg-context-set-signers context signers) | |
| 1205 | (if mml2015-cache-passphrase | |
| 1206 | (epg-context-set-passphrase-callback | |
| 1207 | context | |
| 1208 | #'mml2015-epg-passphrase-callback)) | |
| 1209 | (condition-case error | |
| 1210 | (setq signature (epg-sign-string context (buffer-string) t) | |
| 1211 | mml2015-epg-secret-key-id-list nil) | |
| 1212 | (error | |
| 1213 | (while mml2015-epg-secret-key-id-list | |
| 1214 | (password-cache-remove (car mml2015-epg-secret-key-id-list)) | |
| 1215 | (setq mml2015-epg-secret-key-id-list | |
| 1216 | (cdr mml2015-epg-secret-key-id-list))) | |
| 1217 | (signal (car error) (cdr error)))) | |
| 1218 | (if (epg-context-result-for context 'sign) | |
| 1219 | (setq micalg (epg-new-signature-digest-algorithm | |
| 1220 | (car (epg-context-result-for context 'sign))))) | |
| 1221 | (goto-char (point-min)) | |
| 1222 | (insert (format "Content-Type: multipart/signed; boundary=\"%s\";\n" | |
| 1223 | boundary)) | |
| 1224 | (if micalg | |
| 1225 | (insert (format "\tmicalg=pgp-%s; " | |
| 1226 | (downcase | |
| 1227 | (cdr (assq micalg | |
| 1228 | epg-digest-algorithm-alist)))))) | |
| 1229 | (insert "protocol=\"application/pgp-signature\"\n") | |
| 1230 | (insert (format "\n--%s\n" boundary)) | |
| 1231 | (goto-char (point-max)) | |
| 1232 | (insert (format "\n--%s\n" boundary)) | |
| 1233 | (insert "Content-Type: application/pgp-signature\n\n") | |
| 1234 | (insert signature) | |
| 1235 | (goto-char (point-max)) | |
| 1236 | (insert (format "--%s--\n" boundary)) | |
| 1237 | (goto-char (point-max)))) | |
| 1238 | ||
| 1239 | (defun mml2015-epg-encrypt (cont &optional sign) | |
| 1240 | (let ((inhibit-redisplay t) | |
| 1241 | (context (epg-make-context)) | |
| 1242 | (config (epg-configuration)) | |
| 1243 | (recipients (message-options-get 'mml2015-epg-recipients)) | |
| 1244 | cipher signers | |
| 1245 | (boundary (mml-compute-boundary cont)) | |
| 1246 | recipient-key signer-key) | |
| 1247 | (unless recipients | |
| 1248 | (setq recipients | |
| 1249 | (apply #'nconc | |
| 1250 | (mapcar | |
| 1251 | (lambda (recipient) | |
| 1252 | (or (epg-expand-group config recipient) | |
| 1253 | (list (concat "<" recipient ">")))) | |
| 1254 | (split-string | |
| 1255 | (or (message-options-get 'message-recipients) | |
| 1256 | (message-options-set 'message-recipients | |
| 1257 | (read-string "Recipients: "))) | |
| 1258 | "[ \f\t\n\r\v,]+")))) | |
| 1259 | (when mml2015-encrypt-to-self | |
| 1260 | (unless mml2015-signers | |
| 1261 | (error "mml2015-signers not set")) | |
| 1262 | (setq recipients (nconc recipients mml2015-signers))) | |
| 1263 | (if mml2015-verbose | |
| 1264 | (setq recipients | |
| 1265 | (epa-select-keys context "\ | |
| 1266 | Select recipients for encryption. | |
| 1267 | If no one is selected, symmetric encryption will be performed. " | |
| 1268 | recipients)) | |
| 1269 | (setq recipients | |
| 1270 | (mapcar | |
| 1271 | (lambda (recipient) | |
| 1272 | (setq recipient-key (mml2015-epg-find-usable-key | |
| 1273 | (epg-list-keys context recipient) | |
| 1274 | 'encrypt)) | |
| 1275 | (unless (or recipient-key | |
| 1276 | (y-or-n-p | |
| 1277 | (format "No public key for %s; skip it? " | |
| 1278 | recipient))) | |
| 1279 | (error "No public key for %s" recipient)) | |
| 1280 | recipient-key) | |
| 1281 | recipients)) | |
| 1282 | (unless recipients | |
| 1283 | (error "No recipient specified"))) | |
| 1284 | (message-options-set 'mml2015-epg-recipients recipients)) | |
| 1285 | (when sign | |
| 1286 | (setq signers | |
| 1287 | (or (message-options-get 'mml2015-epg-signers) | |
| 1288 | (message-options-set | |
| 1289 | 'mml2015-epg-signers | |
| 1290 | (if mml2015-verbose | |
| 1291 | (epa-select-keys context "\ | |
| 1292 | Select keys for signing. | |
| 1293 | If no one is selected, default secret key is used. " | |
| 1294 | mml2015-signers t) | |
| 1295 | (if mml2015-signers | |
| 1296 | (mapcar | |
| 1297 | (lambda (signer) | |
| 1298 | (setq signer-key (mml2015-epg-find-usable-key | |
| 1299 | (epg-list-keys context signer t) | |
| 1300 | 'sign)) | |
| 1301 | (unless (or signer-key | |
| 1302 | (y-or-n-p | |
| 1303 | (format | |
| 1304 | "No secret key for %s; skip it? " | |
| 1305 | signer))) | |
| 1306 | (error "No secret key for %s" signer)) | |
| 1307 | signer-key) | |
| 1308 | mml2015-signers)))))) | |
| 1309 | (epg-context-set-signers context signers)) | |
| 1310 | (epg-context-set-armor context t) | |
| 1311 | (epg-context-set-textmode context t) | |
| 1312 | (if mml2015-cache-passphrase | |
| 1313 | (epg-context-set-passphrase-callback | |
| 1314 | context | |
| 1315 | #'mml2015-epg-passphrase-callback)) | |
| 1316 | (condition-case error | |
| 1317 | (setq cipher | |
| 1318 | (epg-encrypt-string context (buffer-string) recipients sign | |
| 1319 | mml2015-always-trust) | |
| 1320 | mml2015-epg-secret-key-id-list nil) | |
| 1321 | (error | |
| 1322 | (while mml2015-epg-secret-key-id-list | |
| 1323 | (password-cache-remove (car mml2015-epg-secret-key-id-list)) | |
| 1324 | (setq mml2015-epg-secret-key-id-list | |
| 1325 | (cdr mml2015-epg-secret-key-id-list))) | |
| 1326 | (signal (car error) (cdr error)))) | |
| 1327 | (delete-region (point-min) (point-max)) | |
| 1328 | (goto-char (point-min)) | |
| 1329 | (insert (format "Content-Type: multipart/encrypted; boundary=\"%s\";\n" | |
| 1330 | boundary)) | |
| 1331 | (insert "\tprotocol=\"application/pgp-encrypted\"\n\n") | |
| 1332 | (insert (format "--%s\n" boundary)) | |
| 1333 | (insert "Content-Type: application/pgp-encrypted\n\n") | |
| 1334 | (insert "Version: 1\n\n") | |
| 1335 | (insert (format "--%s\n" boundary)) | |
| 1336 | (insert "Content-Type: application/octet-stream\n\n") | |
| 1337 | (insert cipher) | |
| 1338 | (goto-char (point-max)) | |
| 1339 | (insert (format "--%s--\n" boundary)) | |
| 1340 | (goto-char (point-max)))) | |
| 1341 | ||
| 23f87bed MB |
1342 | ;;; General wrapper |
| 1343 | ||
| 5a12b40c GM |
1344 | (autoload 'gnus-buffer-live-p "gnus-util") |
| 1345 | (autoload 'gnus-get-buffer-create "gnus") | |
| 1346 | ||
| 23f87bed MB |
1347 | (defun mml2015-clean-buffer () |
| 1348 | (if (gnus-buffer-live-p mml2015-result-buffer) | |
| 1349 | (with-current-buffer mml2015-result-buffer | |
| 1350 | (erase-buffer) | |
| 1351 | t) | |
| 1352 | (setq mml2015-result-buffer | |
| 01c52d31 | 1353 | (gnus-get-buffer-create " *MML2015 Result*")) |
| 23f87bed MB |
1354 | nil)) |
| 1355 | ||
| 1356 | (defsubst mml2015-clear-decrypt-function () | |
| 1357 | (nth 6 (assq mml2015-use mml2015-function-alist))) | |
| 1358 | ||
| 1359 | (defsubst mml2015-clear-verify-function () | |
| 1360 | (nth 5 (assq mml2015-use mml2015-function-alist))) | |
| 1361 | ||
| 1362 | ;;;###autoload | |
| 1363 | (defun mml2015-decrypt (handle ctl) | |
| 1364 | (mml2015-clean-buffer) | |
| 1365 | (let ((func (nth 4 (assq mml2015-use mml2015-function-alist)))) | |
| 1366 | (if func | |
| 1367 | (funcall func handle ctl) | |
| 1368 | handle))) | |
| 1369 | ||
| 1370 | ;;;###autoload | |
| 1371 | (defun mml2015-decrypt-test (handle ctl) | |
| 1372 | mml2015-use) | |
| 1373 | ||
| 1374 | ;;;###autoload | |
| 1375 | (defun mml2015-verify (handle ctl) | |
| 1376 | (mml2015-clean-buffer) | |
| 1377 | (let ((func (nth 3 (assq mml2015-use mml2015-function-alist)))) | |
| 1378 | (if func | |
| 1379 | (funcall func handle ctl) | |
| 1380 | handle))) | |
| 1381 | ||
| 1382 | ;;;###autoload | |
| 1383 | (defun mml2015-verify-test (handle ctl) | |
| 1384 | mml2015-use) | |
| 1385 | ||
| 1386 | ;;;###autoload | |
| 1387 | (defun mml2015-encrypt (cont &optional sign) | |
| 1388 | (mml2015-clean-buffer) | |
| 1389 | (let ((func (nth 2 (assq mml2015-use mml2015-function-alist)))) | |
| 1390 | (if func | |
| 1391 | (funcall func cont sign) | |
| 1392 | (error "Cannot find encrypt function")))) | |
| 1393 | ||
| 1394 | ;;;###autoload | |
| 1395 | (defun mml2015-sign (cont) | |
| 1396 | (mml2015-clean-buffer) | |
| 1397 | (let ((func (nth 1 (assq mml2015-use mml2015-function-alist)))) | |
| 1398 | (if func | |
| 1399 | (funcall func cont) | |
| 1400 | (error "Cannot find sign function")))) | |
| 1401 | ||
| 1402 | ;;;###autoload | |
| 1403 | (defun mml2015-self-encrypt () | |
| 1404 | (mml2015-encrypt nil)) | |
| 1405 | ||
| 1406 | (provide 'mml2015) | |
| 1407 | ||
| 1408 | ;;; arch-tag: b04701d5-0b09-44d8-bed8-de901bf435f2 | |
| 1409 | ;;; mml2015.el ends here |