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[PATCH v2 4/7] push -s: send signed push certificate

From
Junio C Hamano <gitster@pobox.com>
Date
Sep 8, 2011, 20:01 UTC
Message-ID
<1315512102-19022-5-git-send-email-gitster@pobox.com>
In-Reply-To
<1315512102-19022-1-git-send-email-gitster@pobox.com>

And this uses the GPG interface to sign the push certificate. The format of the signed certificate is very similar to a signed tag, in that the result is a concatenation of the payload, immediately followed by a detached signature.

This places the same constraint as an annotated tag on the push certificate payload; it has to be a text file and the final line must not be an incomplete line.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin/send-pack.c |   29 ++++++++++++-----------------
 1 files changed, 12 insertions(+), 17 deletions(-)
diff --git a/builtin/send-pack.c b/builtin/send-pack.c
index 7f4778c..f715324 100644
--- a/builtin/send-pack.c
+++ b/builtin/send-pack.c
@@ -8,6 +8,7 @@
 #include "send-pack.h"
 #include "quote.h"
 #include "transport.h"
+#include "gpg-interface.h"
 
 static const char send_pack_usage[] =
 "git send-pack [--all | --mirror] [--dry-run] [--force] [--receive-pack=<git-receive-pack>] [--verbose] [--thin] [<host>:]<directory> [<ref>...]\n"
@@ -237,25 +238,18 @@ static int sideband_demux(int in, int out, void *data)
 	return ret;
 }
 
-static void sign_push_certificate(struct strbuf *cert)
+/*
+ * Take the contents of cert->buf, and have the user GPG sign it, and
+ * read it back in the strbuf.
+ */
+static int sign_push_certificate(struct strbuf *cert)
 {
 	/*
-	 * Here, take the contents of cert->buf, and have the user GPG
-	 * sign it, and read it back in the strbuf.
-	 *
-	 * You may want to append some extra info to cert before giving
-	 * it to GPG, possibly via a hook.
-	 *
-	 * Here we upcase them just to demonstrate that the codepath
-	 * is being exercised.
+	 * You may want to append some extra info to cert before
+	 * giving it to GPG, possibly via a hook, here.
 	 */
-	char *cp;
-	for (cp = cert->buf; *cp; cp++) {
-		int ch = *cp;
-		if ('a' <= ch && ch <= 'z')
-			*cp = toupper(ch);
-	}
-	return;
+
+	return sign_buffer(cert, git_committer_info(IDENT_NO_DATE));
 }
 
 int send_pack(struct send_pack_args *args,
@@ -369,7 +363,8 @@ int send_pack(struct send_pack_args *args,
 	if (signed_push && cmds_sent) {
 		char *cp, *ep;
 
-		sign_push_certificate(&push_cert);
+		if (sign_push_certificate(&push_cert))
+			return error(_("failed to sign push certificate"));
 		strbuf_reset(&req_buf);
 		for (cp = push_cert.buf; *cp; cp = ep) {
 			ep = strchrnul(cp, '\n');
-- 
1.7.7.rc0.188.g3793ac
Previous: Junio C HamanoNext: Junio C Hamano
Message 5 of 22 in “"push -s"”
  1. 0/7 "push -s"Junio C Hamano, Sep 8, 2011
  2. 1/7 send-pack: typofix error messageJunio C Hamano, Sep 8, 2011
  3. 2/7 Split GPG interface into its own helper libraryJunio C Hamano, Sep 8, 2011
  4. 3/7 push -s: skeletonJunio C Hamano, Sep 8, 2011
  5. 4/7 push -s: send signed push certificateJunio C Hamano, Sep 8, 2011
  6. 5/7 push -s: receiving endJunio C Hamano, Sep 8, 2011
  7. 6/7 refactor run_receive_hook()Junio C Hamano, Sep 8, 2011
  8. 7/7 push -s: support pre-receive-signature hookJunio C Hamano, Sep 8, 2011
  9. 0/4 Signed pushJunio C Hamano, Sep 9, 2011
  10. 1/4 send-pack: typofix error messageJunio C Hamano, Sep 9, 2011
  11. 2/4 Split GPG interface into its own helper libraryJunio C Hamano, Sep 9, 2011
  12. 3/4 rename "match_refs()" to "match_push_refs()"Junio C Hamano, Sep 9, 2011
  13. 4/4 push -s: signed pushJunio C Hamano, Sep 9, 2011
  14. 4/4 push -s: signed pushJunio C Hamano, Sep 9, 2011
  15. Junio C HamanoSep 10, 2011
  16. Sverre RabbelierSep 10, 2011
  17. Junio C HamanoSep 10, 2011
  18. Ted Ts'oSep 10, 2011
  19. Junio C HamanoSep 11, 2011
  20. Sverre RabbelierSep 11, 2011
  21. Ted Ts'oSep 11, 2011
  22. Robin H. JohnsonSep 10, 2011

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