return 0;
}
-static void add_rfc2047(struct strbuf *sb, const char *line, int len,
+static void add_rfc2047(struct strbuf *sb, const char *line, size_t len,
const char *encoding, enum rfc2047_type type)
{
static const int max_encoded_length = 76; /* per rfc2047 */
strbuf_grow(sb, len * 3 + strlen(encoding) + 100);
strbuf_addf(sb, "=?%s?q?", encoding);
line_len += strlen(encoding) + 5; /* 5 for =??q? */
- for (i = 0; i < len; i++) {
- unsigned ch = line[i] & 0xFF;
- int is_special = is_rfc2047_special(ch, type);
+
+ while (len) {
+ /*
+ * RFC 2047, section 5 (3):
+ *
+ * Each 'encoded-word' MUST represent an integral number of
+ * characters. A multi-octet character may not be split across
+ * adjacent 'encoded- word's.
+ */
+ const unsigned char *p = (const unsigned char *)line;
+ int chrlen = mbs_chrlen(&line, &len, encoding);
+ int is_special = (chrlen > 1) || is_rfc2047_special(*p, type);
+
+ /* "=%02X" * chrlen, or the byte itself */
+ const char *encoded_fmt = is_special ? "=%02X" : "%c";
+ int encoded_len = is_special ? 3 * chrlen : 1;
/*
* According to RFC 2047, we could encode the special character
* causes ' ' to be encoded as '=20', avoiding this problem.
*/
- if (line_len + 2 + (is_special ? 3 : 1) > max_encoded_length) {
+ if (line_len + encoded_len + 2 > max_encoded_length) {
+ /* It won't fit with trailing "?=" --- break the line */
strbuf_addf(sb, "?=\n =?%s?q?", encoding);
line_len = strlen(encoding) + 5 + 1; /* =??q? plus SP */
}
- if (is_special) {
- strbuf_addf(sb, "=%02X", ch);
- line_len += 3;
- } else {
- strbuf_addch(sb, ch);
- line_len++;
- }
+ for (i = 0; i < chrlen; i++)
+ strbuf_addf(sb, encoded_fmt, p[i]);
+ line_len += encoded_len;
}
strbuf_addstr(sb, "?=");
}
char *msg = commit->buffer;
char *out;
+ if (!msg) {
+ enum object_type type;
+ unsigned long size;
+
+ msg = read_sha1_file(commit->object.sha1, &type, &size);
+ if (!msg)
+ die("Cannot read commit object %s",
+ sha1_to_hex(commit->object.sha1));
+ if (type != OBJ_COMMIT)
+ die("Expected commit for '%s', got %s",
+ sha1_to_hex(commit->object.sha1), typename(type));
+ }
+
if (!output_encoding || !*output_encoding)
return msg;
encoding = get_header(commit, msg, "encoding");
use_encoding = encoding ? encoding : utf8;
- if (same_encoding(use_encoding, output_encoding))
- if (encoding) /* we'll strip encoding header later */
- out = xstrdup(commit->buffer);
- else
- return msg; /* nothing to do */
- else
- out = reencode_string(commit->buffer,
- output_encoding, use_encoding);
+ if (same_encoding(use_encoding, output_encoding)) {
+ /*
+ * No encoding work to be done. If we have no encoding header
+ * at all, then there's nothing to do, and we can return the
+ * message verbatim (whether newly allocated or not).
+ */
+ if (!encoding)
+ return msg;
+
+ /*
+ * Otherwise, we still want to munge the encoding header in the
+ * result, which will be done by modifying the buffer. If we
+ * are using a fresh copy, we can reuse it. But if we are using
+ * the cached copy from commit->buffer, we need to duplicate it
+ * to avoid munging commit->buffer.
+ */
+ out = msg;
+ if (out == commit->buffer)
+ out = xstrdup(out);
+ }
+ else {
+ /*
+ * There's actual encoding work to do. Do the reencoding, which
+ * still leaves the header to be replaced in the next step. At
+ * this point, we are done with msg. If we allocated a fresh
+ * copy, we can free it.
+ */
+ out = reencode_string(msg, output_encoding, use_encoding);
+ if (out && msg != commit->buffer)
+ free(msg);
+ }
+
+ /*
+ * This replacement actually consumes the buffer we hand it, so we do
+ * not have to worry about freeing the old "out" here.
+ */
if (out)
out = replace_encoding_header(out, output_encoding);
unsigned commit_signature_parsed:1;
struct {
char *gpg_output;
+ char *gpg_status;
char good_bad;
char *signer;
+ char *key;
} signature;
char *message;
size_t width, indent1, indent2;
char result;
const char *check;
} signature_check[] = {
- { 'G', ": Good signature from " },
- { 'B', ": BAD signature from " },
+ { 'G', "\n[GNUPG:] GOODSIG " },
+ { 'B', "\n[GNUPG:] BADSIG " },
};
static void parse_signature_lines(struct format_commit_context *ctx)
{
- const char *buf = ctx->signature.gpg_output;
+ const char *buf = ctx->signature.gpg_status;
int i;
for (i = 0; i < ARRAY_SIZE(signature_check); i++) {
continue;
ctx->signature.good_bad = signature_check[i].result;
found += strlen(signature_check[i].check);
+ ctx->signature.key = xmemdupz(found, 16);
+ found += 17;
next = strchrnul(found, '\n');
ctx->signature.signer = xmemdupz(found, next - found);
break;
struct strbuf payload = STRBUF_INIT;
struct strbuf signature = STRBUF_INIT;
struct strbuf gpg_output = STRBUF_INIT;
+ struct strbuf gpg_status = STRBUF_INIT;
int status;
ctx->commit_signature_parsed = 1;
goto out;
status = verify_signed_buffer(payload.buf, payload.len,
signature.buf, signature.len,
- &gpg_output);
+ &gpg_output, &gpg_status);
if (status && !gpg_output.len)
goto out;
ctx->signature.gpg_output = strbuf_detach(&gpg_output, NULL);
+ ctx->signature.gpg_status = strbuf_detach(&gpg_status, NULL);
parse_signature_lines(ctx);
out:
+ strbuf_release(&gpg_status);
strbuf_release(&gpg_output);
strbuf_release(&payload);
strbuf_release(&signature);
if (c->signature.signer)
strbuf_addstr(sb, c->signature.signer);
break;
+ case 'K':
+ if (c->signature.key)
+ strbuf_addstr(sb, c->signature.key);
+ break;
}
return 2;
}