+;; PGP
+(eval-when-compile
+ (defmacro wl-define-dummy-functions (&rest symbols)
+ `(dolist (symbol (quote ,symbols))
+ (defalias symbol 'ignore)))
+
+ (condition-case nil
+ (require 'epa)
+ (error
+ (wl-define-dummy-functions epg-make-context
+ epg-decrypt-string
+ epg-verify-string
+ epg-context-set-progress-callback
+ epg-context-result-for
+ epg-verify-result-to-string
+ epa-display-info)))
+ (condition-case nil
+ (require 'pgg)
+ (error
+ (wl-define-dummy-functions pgg-decrypt-region
+ pgg-verify-region
+ pgg-display-output-buffer))))
+
+(defun wl-epg-progress-callback (context what char current total reporter)
+ (let ((label (elmo-progress-counter-label reporter)))
+ (when label
+ (elmo-progress-notify label :set current :total total))))
+
+(defun wl-mime-pgp-decrypt-region-with-epg (beg end &optional no-decode)
+ (require 'epg)
+ (let ((context (epg-make-context)))
+ (elmo-with-progress-display (epg-decript nil reporter)
+ "Decrypting"
+ (epg-context-set-progress-callback context
+ (cons #'wl-epg-progress-callback
+ reporter))
+ (insert (prog1
+ (decode-coding-string
+ (epg-decrypt-string
+ context
+ (buffer-substring beg end))
+ (if no-decode 'raw-text wl-cs-autoconv))
+ (delete-region beg end)))))
+ last-coding-system-used)
+
+(defun wl-mime-pgp-verify-region-with-epg (beg end &optional coding-system)
+ (require 'epa)
+ (let ((context (epg-make-context)))
+ (elmo-with-progress-display (epg-verify nil reporter)
+ "Verifying"
+ (epg-context-set-progress-callback context
+ (cons #'wl-epg-progress-callback
+ reporter))
+ (epg-verify-string
+ context
+ (encode-coding-string
+ (buffer-substring beg end)
+ (if coding-system
+ (coding-system-change-eol-conversion coding-system 'dos)
+ 'raw-text-dos))))
+ (when (epg-context-result-for context 'verify)
+ (epa-display-info (epg-verify-result-to-string
+ (epg-context-result-for context 'verify))))))
+
+(defun wl-mime-pgp-decrypt-region-with-pgg (beg end &optional no-decode)
+ (require 'pgg)
+ (let ((buffer-file-coding-system wl-cs-autoconv)
+ status)
+ (setq status (pgg-decrypt-region beg end))
+ (if no-decode
+ (when status
+ (delete-region beg end)
+ (insert-buffer-substring pgg-output-buffer))
+ (pgg-display-output-buffer beg end status))
+ (unless status
+ (error "Decryption is failed"))
+ last-coding-system-used))
+
+(defun wl-mime-pgp-verify-region-with-pgg (beg end &optional coding-system)
+ (require 'pgg)
+ (let ((message-buffer (current-buffer))
+ success)
+ (with-temp-buffer
+ (insert-buffer-substring message-buffer beg end)
+ (when coding-system
+ (encode-coding-region (point-min) (point-max) coding-system))
+ (setq success (pgg-verify-region (point-min) (point-max) nil 'fetch)))
+ (mime-show-echo-buffer)
+ (set-buffer mime-echo-buffer-name)
+ (set-window-start
+ (get-buffer-window mime-echo-buffer-name)
+ (point-max))
+ (insert-buffer-substring
+ (if success
+ pgg-output-buffer
+ pgg-errors-buffer))))
+
+(defsubst wl-mime-pgp-decrypt-region (beg end &optional no-decode)
+ (case wl-use-pgp-module
+ (epg
+ (wl-mime-pgp-decrypt-region-with-epg beg end no-decode))
+ (pgg
+ (wl-mime-pgp-decrypt-region-with-pgg beg end no-decode))
+ (t
+ (error "Don't support PGP decryption"))))
+
+(defsubst wl-mime-pgp-verify-region (beg end &optional coding-system)
+ (case wl-use-pgp-module
+ (epg
+ (wl-mime-pgp-verify-region-with-epg beg end coding-system))
+ (pgg
+ (wl-mime-pgp-verify-region-with-pgg beg end coding-system))
+ (t
+ (error "Don't support PGP decryption"))))
+