From 0106b1d4be166fd4f7bcf0b901d50940c9f539e2 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Fri, 28 Feb 2020 09:43:17 -0800 Subject: Revert "gpg-interface: prefer check_signature() for GPG verification" This reverts commit 72b006f4bfd30b7c5037c163efaf279ab65bea9c, which breaks the end-user experience when merging a signed tag without having the public key. We should report "can't check because we have no public key", but the code with this change claimed that there was no signature. --- gpg-interface.c | 97 ++++++++++++++++++++++++++++----------------------------- 1 file changed, 48 insertions(+), 49 deletions(-) (limited to 'gpg-interface.c') diff --git a/gpg-interface.c b/gpg-interface.c index 5134ce2780..131e7d529e 100644 --- a/gpg-interface.c +++ b/gpg-interface.c @@ -207,55 +207,6 @@ found_duplicate_status: FREE_AND_NULL(sigc->key); } -static int verify_signed_buffer(const char *payload, size_t payload_size, - const char *signature, size_t signature_size, - struct strbuf *gpg_output, - struct strbuf *gpg_status) -{ - struct child_process gpg = CHILD_PROCESS_INIT; - struct gpg_format *fmt; - struct tempfile *temp; - int ret; - struct strbuf buf = STRBUF_INIT; - - temp = mks_tempfile_t(".git_vtag_tmpXXXXXX"); - if (!temp) - return error_errno(_("could not create temporary file")); - if (write_in_full(temp->fd, signature, signature_size) < 0 || - close_tempfile_gently(temp) < 0) { - error_errno(_("failed writing detached signature to '%s'"), - temp->filename.buf); - delete_tempfile(&temp); - return -1; - } - - fmt = get_format_by_sig(signature); - if (!fmt) - BUG("bad signature '%s'", signature); - - argv_array_push(&gpg.args, fmt->program); - argv_array_pushv(&gpg.args, fmt->verify_args); - argv_array_pushl(&gpg.args, - "--status-fd=1", - "--verify", temp->filename.buf, "-", - NULL); - - if (!gpg_status) - gpg_status = &buf; - - sigchain_push(SIGPIPE, SIG_IGN); - ret = pipe_command(&gpg, payload, payload_size, - gpg_status, 0, gpg_output, 0); - sigchain_pop(SIGPIPE); - - delete_tempfile(&temp); - - ret |= !strstr(gpg_status->buf, "\n[GNUPG:] GOODSIG "); - strbuf_release(&buf); /* no matter it was used or not */ - - return ret; -} - int check_signature(const char *payload, size_t plen, const char *signature, size_t slen, struct signature_check *sigc) { @@ -400,3 +351,51 @@ int sign_buffer(struct strbuf *buffer, struct strbuf *signature, const char *sig return 0; } + +int verify_signed_buffer(const char *payload, size_t payload_size, + const char *signature, size_t signature_size, + struct strbuf *gpg_output, struct strbuf *gpg_status) +{ + struct child_process gpg = CHILD_PROCESS_INIT; + struct gpg_format *fmt; + struct tempfile *temp; + int ret; + struct strbuf buf = STRBUF_INIT; + + temp = mks_tempfile_t(".git_vtag_tmpXXXXXX"); + if (!temp) + return error_errno(_("could not create temporary file")); + if (write_in_full(temp->fd, signature, signature_size) < 0 || + close_tempfile_gently(temp) < 0) { + error_errno(_("failed writing detached signature to '%s'"), + temp->filename.buf); + delete_tempfile(&temp); + return -1; + } + + fmt = get_format_by_sig(signature); + if (!fmt) + BUG("bad signature '%s'", signature); + + argv_array_push(&gpg.args, fmt->program); + argv_array_pushv(&gpg.args, fmt->verify_args); + argv_array_pushl(&gpg.args, + "--status-fd=1", + "--verify", temp->filename.buf, "-", + NULL); + + if (!gpg_status) + gpg_status = &buf; + + sigchain_push(SIGPIPE, SIG_IGN); + ret = pipe_command(&gpg, payload, payload_size, + gpg_status, 0, gpg_output, 0); + sigchain_pop(SIGPIPE); + + delete_tempfile(&temp); + + ret |= !strstr(gpg_status->buf, "\n[GNUPG:] GOODSIG "); + strbuf_release(&buf); /* no matter it was used or not */ + + return ret; +} -- cgit v1.2.1