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epg: Support key editing

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* epg.el (epg-context): New slot EDIT-CALLBACK.
(epg--process-filter): Call EDIT-CALLBACK when editing a key.
(epg-reset): Reset EDIT-CALLBACK of the context.
(epg-start-edit-key): New function.
(epg-edit-key): New function.
This commit is contained in:
Daiki Ueno 2014-11-18 16:19:14 +09:00
parent b3cb91e07c
commit 9e8da9d279
2 changed files with 62 additions and 8 deletions
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8
lisp/ChangeLog
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@ -1,3 +1,11 @@
2014-11-18 Daiki Ueno <ueno@gnu.org>
* epg.el (epg-context): New slot EDIT-CALLBACK.
(epg--process-filter): Call EDIT-CALLBACK when editing a key.
(epg-reset): Reset EDIT-CALLBACK of the context.
(epg-start-edit-key): New function.
(epg-edit-key): New function.
2014-11-18 Paul Eggert <eggert@cs.ucla.edu>
Port new time stamp handling to Emacs 23.2.

62
lisp/epg.el
View File

@ -205,6 +205,7 @@
compress-algorithm
(passphrase-callback (list #'epg-passphrase-callback-function))
progress-callback
edit-callback
signers
sig-notations
process
@ -668,15 +669,27 @@ callback data (if any)."
(beginning-of-line)
(while (looking-at ".*\n") ;the input line finished
(if (looking-at "\\[GNUPG:] \\([A-Z_]+\\) ?\\(.*\\)")
(let* ((status (match-string 1))
(string (match-string 2))
(symbol (intern-soft (concat "epg--status-"
status))))
(let ((status (match-string 1))
(string (match-string 2))
symbol)
(if (member status epg-pending-status-list)
(setq epg-pending-status-list nil))
(if (and symbol
(fboundp symbol))
(funcall symbol epg-context string))
;; When editing a key, delegate all interaction
;; to edit-callback.
(if (eq (epg-context-operation epg-context) 'edit-key)
(funcall (car (epg-context-edit-callback
epg-context))
epg-context
status
string
(cdr (epg-context-edit-callback
epg-context)))
;; Otherwise call epg--status-STATUS function.
(setq symbol (intern-soft (concat "epg--status-"
status)))
(if (and symbol
(fboundp symbol))
(funcall symbol epg-context string)))
(setq epg-last-status (cons status string)))
;; Record other lines sent to stderr. This assumes
;; that the process-filter receives output only from
@ -736,7 +749,8 @@ callback data (if any)."
(if (and (epg-context-process context)
(buffer-live-p (process-buffer (epg-context-process context))))
(kill-buffer (process-buffer (epg-context-process context))))
(setf (epg-context-process context) nil))
(setf (epg-context-process context) nil)
(setf (epg-context-edit-callback context) nil))
(defun epg-delete-output-file (context)
"Delete the output file of CONTEXT."
@ -2084,6 +2098,38 @@ PARAMETERS is a string which tells how to create the key."
(epg-errors-to-string errors))))))
(epg-reset context)))
(defun epg-start-edit-key (context key edit-callback handback)
"Initiate an edit operation on KEY.
EDIT-CALLBACK is called from process filter and takes 3
arguments: the context, a status, an argument string, and the
handback argument.
If you use this function, you will need to wait for the completion of
`epg-gpg-program' by using `epg-wait-for-completion' and call
`epg-reset' to clear a temporary output file.
If you are unsure, use synchronous version of this function
`epg-edit-key' instead."
(setf (epg-context-operation context) 'edit-key)
(setf (epg-context-result context) nil)
(setf (epg-context-edit-callback context) (cons edit-callback handback))
(epg--start context (list "--edit-key"
(epg-sub-key-id
(car (epg-key-sub-key-list key))))))
(defun epg-edit-key (context key edit-callback handback)
"Edit KEY in the keyring."
(unwind-protect
(progn
(epg-start-edit-key context key edit-callback handback)
(epg-wait-for-completion context)
(let ((errors (epg-context-result-for context 'error)))
(if errors
(signal 'epg-error
(list "Edit key failed"
(epg-errors-to-string errors))))))
(epg-reset context)))
(defun epg--decode-percent-escape (string)
(let ((index 0))
(while (string-match "%\\(\\(%\\)\\|\\([0-9A-Fa-f][0-9A-Fa-f]\\)\\)"