From: ueno <ueno>
Date: Thu, 25 May 2006 05:50:28 +0000 (+0000)
Subject: * epa.el (epa-verify-region): New command.
X-Git-Tag: epg-0_0_2~38
X-Git-Url: http://git.chise.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2d3d6273c5f1646356f4dd08f428bb7dc67b92fa;p=elisp%2Fepg.git

* epa.el (epa-verify-region): New command.
---

diff --git a/ChangeLog b/ChangeLog
index ad5496e..e0f1fce 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -3,6 +3,7 @@
 	* epa.el (epa-decrypt-file): Display verify result if the message
 	is signed.
 	(epa-decrypt-region): New command.
+	(epa-verify-region): New command.
 
 2006-05-11  Daiki Ueno  <ueno@unixuser.org>
 
diff --git a/epa.el b/epa.el
index b9524d7..6ebf0ac 100644
--- a/epa.el
+++ b/epa.el
@@ -625,7 +625,7 @@ If LOCAL is non-nil, the signature is marked as non exportable."
 	  (unless armor-end
 	    (error "No armor tail"))
 	  (goto-char armor-start)
-	  (if (re-search-forward "^Charset: \\(.*\\)" nil t)
+	  (if (re-search-forward "^Charset: \\(.*\\)" armor-end t)
 	      (setq charset (match-string 1)))
 	  (setq context (epg-make-context)
 		plain (epg-decrypt-string
@@ -644,6 +644,40 @@ If LOCAL is non-nil, the signature is marked as non exportable."
 		       (epg-verify-result-to-string
 			(epg-context-result-for context 'verify)))))))))
 
+;;;###autoload
+(defun epa-verify-region (start end)
+  "Verify OpenPGP armors in the current region between START and END."
+  (interactive "r")
+  (save-excursion
+    (save-restriction
+      (narrow-to-region start end)
+      (goto-char start)
+      (let (armor-start armor-end context)
+	(while (re-search-forward "-----BEGIN PGP\\( SIGNED\\)? MESSAGE-----$"
+				  nil t)
+	  (setq armor-start (match-beginning 0))
+	  (if (match-beginning 1)	;cleartext signed message
+	      (progn
+		(unless (re-search-forward "^-----BEGIN PGP SIGNATURE-----$"
+					   nil t)
+		  (error "Invalid cleartext signed message"))
+		(setq armor-end (re-search-forward
+				 "^-----END PGP SIGNATURE-----$"
+				 nil t)))
+	    (setq armor-end (re-search-forward
+			     "^-----END PGP MESSAGE-----$"
+			     nil t)))
+	  (unless armor-end
+	    (error "No armor tail"))
+	  (setq context (epg-make-context))
+	  (epg-verify-string context
+			     (encode-coding-string
+			      (buffer-substring armor-start armor-end)
+			      coding-system-for-write))
+	  (message "%s"
+		   (epg-verify-result-to-string
+		    (epg-context-result-for context 'verify))))))))
+
 (provide 'epa)
 
 ;;; epa.el ends here