Synch with Oort Gnus.
[elisp/gnus.git-] / lisp / mml2015.el
index d183432..b86a2e1 100644 (file)
 
 ;;; Commentary:
 
+;; RFC 2015 is updated by RFC 3156, this file should be compatible
+;; with both.
+
 ;;; Code:
 
 (eval-when-compile (require 'cl))
+(eval-when-compile (require 'gnus-clfns))
 (require 'mm-decode)
 
 (defvar mml2015-use (or
@@ -64,7 +68,7 @@
   '((trust-undefined . nil)
     (trust-none      . nil)
     (trust-marginal  . t)
-    (trust-fully     . t)
+    (trust-full      . t)
     (trust-ultimate  . t))
   "Trust boundaries for a signer's GnuPG key.
 This alist contains pairs of the form (trust-symbol . boolean), with
@@ -149,7 +153,8 @@ by you.")
 
 (defun mml2015-fix-micalg (alg)
   (and alg
-       (upcase (if (string-match "^pgp-" alg)
+       ;; Mutt/1.2.5i has seen sending micalg=php-sha1
+       (upcase (if (string-match "^p[gh]p-" alg)
                   (substring alg (match-end 0))
                 alg))))
 
@@ -361,7 +366,10 @@ by you.")
               (buffer-string)))
            (set-buffer cipher)
            (erase-buffer)
-           (insert-buffer plain)))
+           (insert-buffer plain)
+           (goto-char (point-min))
+           (while (search-forward "\r\n" nil t)
+             (replace-match "\n" t t))))
        '(t)
       ;; Some wrong with the return value, check plain text buffer.
       (if (> (point-max) (point-min))
@@ -383,9 +391,9 @@ by you.")
 
 (defun mml2015-gpg-pretty-print-fpr (fingerprint)
   (let* ((result "")
-         (fpr-length (string-width fingerprint))
-         (n-slice 0)
-         slice)
+        (fpr-length (string-width fingerprint))
+        (n-slice 0)
+        slice)
     (setq fingerprint (string-to-list fingerprint))
     (while fingerprint
       (setq fpr-length (- fpr-length 4))
@@ -393,13 +401,13 @@ by you.")
       (setq fingerprint (nthcdr 4 fingerprint))
       (setq n-slice (1+ n-slice))
       (setq result
-            (concat
-             result
-             (case n-slice
-               (1  slice)
-               (otherwise (concat " " slice))))))
+           (concat
+            result
+            (case n-slice
+              (1  slice)
+              (otherwise (concat " " slice))))))
     result))
-          
+
 (defun mml2015-gpg-extract-signature-details ()
   (goto-char (point-min))
   (if (boundp 'gpg-unabbrev-trust-alist)
@@ -407,21 +415,21 @@ by you.")
                           "^\\[GNUPG:\\] GOODSIG [0-9A-Za-z]* \\(.*\\)$"
                           nil t)
                          (match-string 1)))
-         (fprint (and (re-search-forward
-                      "^\\[GNUPG:\\] VALIDSIG \\([0-9a-zA-Z]*\\) "
+            (fprint (and (re-search-forward
+                          "^\\[GNUPG:\\] VALIDSIG \\([0-9a-zA-Z]*\\) "
                       nil t)
-                      (match-string 1)))
-         (trust  (and (re-search-forward "^\\[GNUPG:\\] \\(TRUST_.*\\)$" nil t)
-                      (match-string 1)))
-         (trust-good-enough-p
-         (cdr (assoc (cdr (assoc trust gpg-unabbrev-trust-alist))
+                         (match-string 1)))
+            (trust  (and (re-search-forward "^\\[GNUPG:\\] \\(TRUST_.*\\)$" nil t)
+                         (match-string 1)))
+            (trust-good-enough-p
+             (cdr (assoc (cdr (assoc trust gpg-unabbrev-trust-alist))
                      mml2015-trust-boundaries-alist))))
        (if (and signer trust fprint)
            (concat signer
                    (unless trust-good-enough-p
                      (concat "\nUntrusted, Fingerprint: "
                              (mml2015-gpg-pretty-print-fpr fprint))))
-         (error "From unknown user")))
+         "From unknown user"))
     (if (re-search-forward "^gpg: Good signature from \"\\(.*\\)\"$" nil t)
        (match-string 1)
       "From unknown user")))
@@ -440,6 +448,16 @@ by you.")
       (with-temp-buffer
        (setq message (current-buffer))
        (insert part)
+       ;; Convert <LF> to <CR><LF> in verify mode.  Sign and
+       ;; clearsign use --textmode. The conversion is not necessary.
+       ;; In clearverify, the conversion is not necessary either.
+       (goto-char (point-min))
+       (end-of-line)
+       (while (not (eobp))
+         (unless (eq (char-before) ?\r)
+           (insert "\r"))
+         (forward-line)
+         (end-of-line))
        (with-temp-buffer
          (setq signature (current-buffer))
          (unless (setq part (mm-find-part-by-type
@@ -458,20 +476,20 @@ by you.")
                    (error
                     (mm-set-handle-multipart-parameter
                      mm-security-handle 'gnus-details (mml2015-format-error err))
-                     (mm-set-handle-multipart-parameter
-                      mm-security-handle 'gnus-info "Error.")
-                     (setq info-is-set-p t)
+                    (mm-set-handle-multipart-parameter
+                     mm-security-handle 'gnus-info "Error.")
+                    (setq info-is-set-p t)
                     nil)
                    (quit
                     (mm-set-handle-multipart-parameter
                      mm-security-handle 'gnus-details "Quit.")
-                     (mm-set-handle-multipart-parameter
-                      mm-security-handle 'gnus-info "Quit.")
-                     (setq info-is-set-p t)
+                    (mm-set-handle-multipart-parameter
+                     mm-security-handle 'gnus-info "Quit.")
+                    (setq info-is-set-p t)
                     nil))
-            (unless info-is-set-p
-              (mm-set-handle-multipart-parameter
-               mm-security-handle 'gnus-info "Failed"))
+           (unless info-is-set-p
+             (mm-set-handle-multipart-parameter
+              mm-security-handle 'gnus-info "Failed"))
            (throw 'error handle)))
        (mm-set-handle-multipart-parameter
         mm-security-handle 'gnus-info