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authorJonathan Tan <jonathantanmy@google.com>2016-09-20 17:17:53 (GMT)
committerJunio C Hamano <gitster@pobox.com>2016-09-21 17:23:11 (GMT)
commit6b4b013f1884a3b5e67877d65a9f1da598ab4a6f (patch)
tree3076091dfce8fc0c844c9bbea2825ba25780902b /mailinfo.c
parent9c5681da88825c4320d3f7142ed320e6984c2377 (diff)
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mailinfo: handle in-body header continuations
Mailinfo currently handles multi-line headers, but it does not handle multi-line in-body headers. Teach it to handle such headers, for example, for this input: From: author <author@example.com> Date: Fri, 9 Jun 2006 00:44:16 -0700 Subject: a very long broken line Subject: another very long broken line interpret the in-body subject to be "another very long broken line" instead of "another very long". An existing test (t/t5100/msg0015) has an indented line immediately after an in-body header - it has been modified to reflect the new functionality. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'mailinfo.c')
-rw-r--r--mailinfo.c50
1 files changed, 49 insertions, 1 deletions
diff --git a/mailinfo.c b/mailinfo.c
index 69391aa..2275b28 100644
--- a/mailinfo.c
+++ b/mailinfo.c
@@ -500,6 +500,21 @@ check_header_out:
return ret;
}
+/*
+ * Returns 1 if the given line or any line beginning with the given line is an
+ * in-body header (that is, check_header will succeed when passed
+ * mi->s_hdr_data).
+ */
+static int is_inbody_header(const struct mailinfo *mi,
+ const struct strbuf *line)
+{
+ int i;
+ for (i = 0; header[i]; i++)
+ if (!mi->s_hdr_data[i] && cmp_header(line, header[i]))
+ return 1;
+ return 0;
+}
+
static void decode_transfer_encoding(struct mailinfo *mi, struct strbuf *line)
{
struct strbuf *ret;
@@ -609,8 +624,33 @@ static int is_scissors_line(const char *line)
gap * 2 < perforation);
}
+static void flush_inbody_header_accum(struct mailinfo *mi)
+{
+ if (!mi->inbody_header_accum.len)
+ return;
+ assert(check_header(mi, &mi->inbody_header_accum, mi->s_hdr_data, 0));
+ strbuf_reset(&mi->inbody_header_accum);
+}
+
static int check_inbody_header(struct mailinfo *mi, const struct strbuf *line)
{
+ if (mi->inbody_header_accum.len &&
+ (line->buf[0] == ' ' || line->buf[0] == '\t')) {
+ if (mi->use_scissors && is_scissors_line(line->buf)) {
+ /*
+ * This is a scissors line; do not consider this line
+ * as a header continuation line.
+ */
+ flush_inbody_header_accum(mi);
+ return 0;
+ }
+ strbuf_strip_suffix(&mi->inbody_header_accum, "\n");
+ strbuf_addbuf(&mi->inbody_header_accum, line);
+ return 1;
+ }
+
+ flush_inbody_header_accum(mi);
+
if (starts_with(line->buf, ">From") && isspace(line->buf[5]))
return is_format_patch_separator(line->buf + 1, line->len - 1);
if (starts_with(line->buf, "[PATCH]") && isspace(line->buf[7])) {
@@ -622,7 +662,11 @@ static int check_inbody_header(struct mailinfo *mi, const struct strbuf *line)
}
return 0;
}
- return check_header(mi, line, mi->s_hdr_data, 0);
+ if (is_inbody_header(mi, line)) {
+ strbuf_addbuf(&mi->inbody_header_accum, line);
+ return 1;
+ }
+ return 0;
}
static int handle_commit_msg(struct mailinfo *mi, struct strbuf *line)
@@ -888,6 +932,8 @@ static void handle_body(struct mailinfo *mi, struct strbuf *line)
break;
} while (!strbuf_getwholeline(line, mi->input, '\n'));
+ flush_inbody_header_accum(mi);
+
handle_body_out:
strbuf_release(&prev);
}
@@ -1003,6 +1049,7 @@ void setup_mailinfo(struct mailinfo *mi)
strbuf_init(&mi->email, 0);
strbuf_init(&mi->charset, 0);
strbuf_init(&mi->log_message, 0);
+ strbuf_init(&mi->inbody_header_accum, 0);
mi->header_stage = 1;
mi->use_inbody_headers = 1;
mi->content_top = mi->content;
@@ -1016,6 +1063,7 @@ void clear_mailinfo(struct mailinfo *mi)
strbuf_release(&mi->name);
strbuf_release(&mi->email);
strbuf_release(&mi->charset);
+ strbuf_release(&mi->inbody_header_accum);
free(mi->message_id);
for (i = 0; mi->p_hdr_data[i]; i++)