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2013-03-21Merge branch 'mg/gpg-interface-using-status'Libravatar Junio C Hamano1-3/+15
Call "gpg" using the right API when validating the signature on tags. * mg/gpg-interface-using-status: pretty: make %GK output the signing key for signed commits pretty: parse the gpg status lines rather than the output gpg_interface: allow to request status return log-tree: rely upon the check in the gpg_interface gpg-interface: check good signature in a reliable way
2013-02-14gpg_interface: allow to request status returnLibravatar Michael J Gruber1-4/+7
Currently, verify_signed_buffer() returns the user facing output only. Allow callers to request the status output also. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-14gpg-interface: check good signature in a reliable wayLibravatar Michael J Gruber1-2/+11
Currently, verify_signed_buffer() only checks the return code of gpg, and some callers implement additional unreliable checks for "Good signature" in the gpg output meant for the user. Use the status output instead and parse for a line beinning with "[GNUPG:] GOODSIG ". This is the only reliable way of checking for a good gpg signature. If needed we can change this easily to "[GNUPG:] VALIDSIG " if we want to take into account the trust model. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-07Merge branch 'sb/gpg-plug-fd-leak' into maintLibravatar Junio C Hamano1-1/+3
We forgot to close the file descriptor reading from "gpg" output, killing "git log --show-signature" on a long history. * sb/gpg-plug-fd-leak: gpg: close stderr once finished with it in verify_signed_buffer()
2013-02-07Merge branch 'sb/gpg-i18n'Libravatar Junio C Hamano1-3/+3
* sb/gpg-i18n: gpg: allow translation of more error messages
2013-02-05Merge branch 'sb/gpg-plug-fd-leak'Libravatar Junio C Hamano1-1/+3
We forgot to close the file descriptor reading from "gpg" output, killing "git log --show-signature" on a long history. * sb/gpg-plug-fd-leak: gpg: close stderr once finished with it in verify_signed_buffer()
2013-01-31gpg: close stderr once finished with it in verify_signed_buffer()Libravatar Stephen Boyd1-1/+3
Failing to close the stderr pipe in verify_signed_buffer() causes git to run out of file descriptors if there are many calls to verify_signed_buffer(). An easy way to trigger this is to run git log --show-signature --merges | grep "key" on the linux kernel git repo. Eventually it will fail with error: cannot create pipe for gpg: Too many open files error: could not run gpg. Close the stderr pipe so that this can't happen. Suggested-by: Jeff King <peff@peff.net> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-31gpg: allow translation of more error messagesLibravatar Stephen Boyd1-3/+3
Mark these strings for translation so that error messages are printed in the user's language of choice. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-24ident: rename IDENT_ERROR_ON_NO_NAME to IDENT_STRICTLibravatar Jeff King1-1/+1
Callers who ask for ERROR_ON_NO_NAME are not so much concerned that the name will be blank (because, after all, we will fall back to using the username), but rather it is a check to make sure that low-quality identities do not end up in things like commit messages or emails (whereas it is OK for them to end up in things like reflogs). When future commits add more quality checks on the identity, each of these callers would want to use those checks, too. Rather than modify each of them later to add a new flag, let's refactor the flag. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-05verify_signed_buffer: fix stale commentLibravatar Junio C Hamano1-4/+1
The function used to take an integer flag to specify where the output should go, but these days we supply a strbuf to receive it. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-29gpg-interface: allow use of a custom GPG binaryLibravatar Junio C Hamano1-3/+8
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-04Split GPG interface into its own helper libraryLibravatar Junio C Hamano1-0/+138
This mostly moves existing code from builtin/tag.c (for signing) and builtin/verify-tag.c (for verifying) to a new gpg-interface.c file to provide a more generic library interface. - sign_buffer() takes a payload strbuf, a signature strbuf, and a signing key, runs "gpg" to produce a detached signature for the payload, and appends it to the signature strbuf. The contents of a signed tag that concatenates the payload and the detached signature can be produced by giving the same strbuf as payload and signature strbuf. - verify_signed_buffer() takes a payload and a detached signature as <ptr, len> pairs, and runs "gpg --verify" to see if the payload matches the signature. It can optionally capture the output from GPG to allow the callers to pretty-print it in a way more suitable for their contexts. "verify-tag" (aka "tag -v") used to save the whole tag contents as if it is a detached signature, and fed gpg the payload part of the tag. It relied on gpg to fail when the given tag is not signed but just is annotated. The updated run_gpg_verify() function detects the lack of detached signature in the input, and errors out without bothering "gpg". Signed-off-by: Junio C Hamano <gitster@pobox.com>