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package.el: Don't signal "no public key" error if allow-unsigned

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* emacs-lisp/package.el (package--check-signature): If
package-check-signature is allow-unsigned, don't signal error when
we can't verify signature because of missing public key
(bug#17625).
This commit is contained in:
Daiki Ueno 2014-06-26 16:10:22 +09:00
parent 9ac6d28ab8
commit 51a3c85711
2 changed files with 21 additions and 10 deletions
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7
lisp/ChangeLog
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@ -1,3 +1,10 @@
2014-06-26 Daiki Ueno <ueno@gnu.org>
* emacs-lisp/package.el (package--check-signature): If
package-check-signature is allow-unsigned, don't signal error when
we can't verify signature because of missing public key
(bug#17625).
2014-06-26 Glenn Morris <rgm@gnu.org>
* emacs-lisp/cl-macs.el (help-add-fundoc-usage):

24
lisp/emacs-lisp/package.el
View File

@ -828,16 +828,20 @@ GnuPG keyring is located under \"gnupg\" in `package-user-dir'."
(buffer-string))))
(epg-context-set-home-directory context homedir)
(epg-verify-string context sig-content (buffer-string))
;; The .sig file may contain multiple signatures. Success if one
;; of the signatures is good.
(let ((good-signatures
(delq nil (mapcar (lambda (sig)
(if (eq (epg-signature-status sig) 'good)
sig))
(epg-context-result-for context 'verify)))))
(if (null good-signatures)
;; FIXME: Only signal an error if the signature is invalid, not if we
;; simply lack the key needed to check the sig!
(let (good-signatures had-fatal-error)
;; The .sig file may contain multiple signatures. Success if one
;; of the signatures is good.
(dolist (sig (epg-context-result-for context 'verify))
(if (eq (epg-signature-status sig) 'good)
(push sig good-signatures)
;; If package-check-signature is allow-unsigned, don't
;; signal error when we can't verify signature because of
;; missing public key. Other errors are still treated as
;; fatal (bug#17625).
(unless (and (eq package-check-signature 'allow-unsigned)
(eq (epg-signature-status sig) 'no-pubkey))
(setq had-fatal-error t))))
(if (and (null good-signatures) had-fatal-error)
(error "Failed to verify signature %s: %S"
sig-file
(mapcar #'epg-signature-to-string